CN111037251A

CN111037251A - Accelerator cavity device assembling tool and method of free electron laser device

Info

Publication number: CN111037251A
Application number: CN201911270692.0A
Authority: CN
Inventors: 钱凯明; 蒋激扬; 张诚诚
Original assignee: Shanghai Installation Engineering Group Co Ltd
Current assignee: Shanghai Installation Engineering Group Co Ltd
Priority date: 2019-12-12
Filing date: 2019-12-12
Publication date: 2020-04-21

Abstract

The invention discloses an accelerator cavity device assembling tool and method for a free electron laser device. The method comprises the steps that the upper stream cavity adjusting bracket and the lower stream cavity adjusting bracket can roughly adjust the cavity body of the accelerator cavity device in the X, Y, Z direction and finely adjust the cavity body in the Y direction and the Z direction, so that the installation accuracy requirements of the cavity body in the horizontal direction and the height direction are met; the angular position of the joint cavity of the accelerator cavity device is adjusted by rotating the fine adjustment support, so that the installation precision requirement of the joint cavity, which meets the angular position, is met. The invention can meet the requirement of installation precision when being assembled in an ultra-clean room.

Description

Accelerator cavity device assembling tool and method of free electron laser device

Technical Field

The invention relates to a special tool, in particular to an accelerator cavity device assembling tool and method of a free electron laser device.

Background

The wavelength range of the X-ray is 0.001-10 nm and is between the ultraviolet ray and the gamma ray. Wavelengths above 0.1nm are called soft X-rays, and wavelengths between 0.01nm and 0.1nm are hard X-rays. Free Electron Lasers (FEL) are currently the most advanced X-ray sources. Free electron laser is coherent light generated by free electrons. Free electron lasers are the only experimental devices in the world that can simultaneously meet the time and space scales required to study processes at the atomic or molecular scale. Provides unprecedented advanced research means such as high-resolution imaging, advanced structure analysis, ultrafast process exploration and the like for multiple subjects such as physics, chemistry, life science, material science, energy science and the like. The hard X-ray free electron laser device consists of three parts, including accelerator, undulator and beam line station system. The accelerator is a low-temperature superconducting module, and the main component of the accelerator is an accelerator cavity device which sequentially comprises an upstream valve, a cavity string, a low-temperature monitoring chamber and a downstream valve which are communicated according to the upstream and downstream orders. The cavity cluster comprises a plurality of festival cavitys, needs pass through the bellows intercommunication between a plurality of festival cavitys according to the upper and lower reaches order. The upstream valve is communicated with the adjacent section cavity through a corrugated pipe, the downstream valve is communicated with the adjacent section cavity through a vacuum pipe and the corrugated pipe, and the vacuum pipe is sleeved with a low-temperature monitoring chamber for monitoring electron beams passing through the accelerator cavity device. Because the accelerator cavity device is a low-temperature superconducting module and needs to be assembled in an ultra-clean room, the upstream valve, the cavity string, the low-temperature monitoring chamber and the downstream valve need to be coaxial, and the requirements on the installation positions and the assembly precision of the upstream valve, the cavity string, the low-temperature monitoring chamber and the downstream valve are higher. Therefore, how to effectively solve the problem of accuracy required to be achieved when the accelerator cavity device is assembled in the ultra-clean room becomes a technical problem to be solved urgently in the field. Secondly, the mounting position and accuracy required for maintaining the rotation angle of each segment cavity are particularly important, so how to adjust the rotation angle of the segment cavity of the accelerator cavity device and achieve the accuracy requirement becomes a technical problem to be solved in the field. Thirdly, be provided with the cold junction on the radial direction of every section cavity downstream end, be connected with the coupler with the cold junction, and the coupler installation back may receive environmental impact such as vibration and take place to become flexible with the cold junction, consequently how to solve and keep the stability of coupler and cold junction to be connected the technical problem that the field needs a urgent need to solve. Particularly, the coaxiality installation position and the accuracy of the coupler connected to the cold end of the cavity are particularly important, and therefore, how to solve the installation of the coupler of the accelerator cavity device and achieve the accuracy requirement becomes a technical problem to be solved urgently in the field. Finally, high mounting accuracy needs to be maintained in the X direction among the section cavities of the cavity string, between the section cavities and the low-temperature monitoring chamber and between the valve and the section cavities. Therefore, how to solve the mounting position and precision requirements in the X direction between the node cavities, between the node cavity and the low temperature monitoring chamber, and between the upstream valve and the node cavity when assembling in the clean room becomes a technical problem to be solved in the art.

Disclosure of Invention

The invention aims to solve the technical problem of providing an accelerator cavity device assembling tool and method of a free electron laser device, and aims to solve the problem of installation accuracy achieved when the accelerator cavity device of the free electron laser device is assembled in an ultra-clean room.

In order to solve the technical problems, the technical scheme of the invention is as follows: an accelerator cavity device assembling tool of a free electron laser device comprises: an upstream cavity adjusting bracket, a downstream cavity adjusting bracket and a rotary adjusting bracket;

the upstream cavity adjusting bracket and the downstream cavity adjusting bracket both comprise a universal pillar and a supporting plate positioned on the universal pillar; the universal support column comprises a support column chassis and a support column tube vertically connected to the support column chassis, wherein the support column tube is connected with an axial adjusting screw rod extending into the support column tube through a flange plate thread, the axial adjusting screw rod is connected with an axial locking nut positioned above the flange plate through a thread, the axial adjusting screw rod is connected with a U-shaped support through a nut, a bearing plate is arranged on the U-shaped support, bearing side plates are arranged on two sides of the bearing plate, and a Y-direction fine adjustment screw rod for finely adjusting the position of the bearing plate in the Y direction is arranged on each bearing side plate; the supporting plate comprises a transverse plate and a vertical plate vertically connected to the transverse plate, a lower half-circumference arc-shaped groove is formed in the vertical plate, the transverse plate is in threaded connection with a bearing threaded hole of the bearing plate through a fixing bolt and an adjusting washer arranged on the fixing bolt, and a Z-direction fine adjustment screw rod is further in threaded connection with the transverse plate and abuts against the upper surface of the bearing plate; the Y-direction fine tuning screw rods are abutted against the side walls of the two ends of the transverse plate or the vertical plate in the Y direction and used for fine tuning the position of the supporting plate 111 in the Y direction;

the rotation angle fine-tuning support comprises a rotating frame base plate, rotating frame supporting columns vertically connected to the rotating frame base plate, a flat plate vertically arranged on the rotating frame supporting columns, vertical plates arranged at two ends of the flat plate in the Y direction, and two vertical plates in the Y direction, wherein the distance between the vertical plates is larger than or equal to the diameter of a section cavity of an accelerator cavity device, a first through hole and a second through hole are sequentially arranged on the vertical plates from top to bottom, lug fixing bolts penetrating through the first through holes are arranged at two ends in the X direction of the vertical plates to fix lugs of the section cavity of the accelerator cavity device at two ends in the X direction, and angle adjusting bolts penetrating through the first through holes are arranged at two ends in the Z direction of the vertical plates to fix lugs of the section cavity of the accelerator cavity device at two ends in the Z direction.

Further, according to the accelerator cavity device assembling tool of the free electron laser device, an arc-shaped convex rib is arranged in the downstream cavity adjusting support along the lower half-circumference arc-shaped groove matched with the downstream end.

Further, according to the accelerator cavity device assembling tool of the free electron laser device, the radial locking screw rods extending into the upright post pipe and used for locking the lower smooth surface sections of the axial adjusting screw rods are arranged in the upright post pipe in the radial direction.

Further, the accelerator cavity device assembling tool of the free electron laser device provided by the invention further comprises:

the structure of the monitoring adjusting bracket is the same as that of the upstream cavity adjusting bracket, and the lower half-cycle arc-shaped groove is matched with a low-temperature monitoring chamber of the accelerator cavity device.

a valve adjustment bracket comprising: the valve comprises a valve base plate, a valve support column and a valve top plate, wherein the valve support column is vertically connected with the valve base plate, the valve top plate is vertically connected to the upper end of the valve support column, the valve top plate is connected with a valve sliding plate through a sliding plate bolt and a sliding plate adjusting gasket arranged on the sliding plate, a threaded hole is formed in the valve top plate corresponding to the position of the sliding plate bolt, a horizontal adjusting hole is formed in the valve sliding plate corresponding to the position of the sliding plate bolt, a valve X-direction side plate is arranged at each of the X-direction ends of the valve sliding plate, a valve X-direction horizontal fine adjusting bolt is arranged on each of the valve X-direction side plates, the opposite end of the screw head of the valve X-direction horizontal fine adjusting bolt is abutted to the side wall of.

Furthermore, according to the accelerator cavity device assembling tool for the free electron laser device, two valve Z-direction fine tuning bolts are arranged in the valve adjusting bracket and distributed at two ends of the valve sliding plate in the Y direction; or the number of the Z-direction fine tuning bolts of the valve is four, and the Z-direction fine tuning bolts are distributed at the corners of the valve sliding plate; y-direction side plates are arranged at two ends of the valve sliding plate in the Y direction, Y-direction horizontal fine-tuning bolts are arranged on the valve Y-direction side plates, and opposite ends of screw heads of the Y-direction horizontal fine-tuning bolts abut against the side wall of the valve top plate.

a base, the base comprising:

the cavity body bottom plate assembly is connected between the upstream cavity adjusting bracket and the downstream cavity adjusting bracket between the same cavity body;

the section cavity bottom plate assembly comprises:

the upstream cavity bottom plate is arranged on the upstream cavity adjusting bracket of the joint cavity body;

the downstream cavity bottom plate is arranged on the downstream cavity adjusting bracket of the joint cavity body;

and the fixing strip is connected between the upstream cavity bottom plate and the downstream cavity bottom plate.

Further, the accelerator cavity device assembling tool for the free electron laser device provided by the invention further comprises a monitoring bottom plate and a valve bottom plate, wherein the valve bottom plate comprises an upstream valve bottom plate arranged on the upstream cavity support and a downstream valve bottom plate arranged on the downstream cavity support, the monitoring bottom plate is arranged on the monitoring adjusting support, and the monitoring bottom plate is connected with the downstream valve bottom plate through a fixing strip.

Further, according to the accelerator cavity device assembling tool of the free electron laser device, the upstream cavity adjusting support is adjustably arranged on the upstream cavity bottom plate along the Y direction through a chassis bolt penetrating through a Y-direction adjusting hole of the support chassis arranged on the support chassis; the downstream cavity adjusting bracket is adjustably arranged on the downstream cavity bottom plate along the Y direction through a bottom plate bolt which passes through a Y-direction adjusting hole of the support chassis arranged on the support chassis; the monitoring adjusting bracket is adjustably arranged on the monitoring bottom plate along the Y direction through a bottom plate bolt which passes through a Y-direction adjusting hole of the support chassis arranged on the support chassis; the rotation angle fine tuning support is adjustably arranged on the rotating frame bottom plate along the Y direction through a plate body bolt which penetrates through a Y-direction adjusting hole of the rotating frame bottom plate arranged on the rotating frame bottom plate; the valve adjusting bracket is adjustably arranged on the upstream valve bottom plate and the downstream valve bottom plate along the Y direction through a bottom plate fixing bolt which penetrates through a Y-direction adjusting hole of the valve bottom plate arranged on the valve bottom plate.

Further, according to the accelerator cavity device assembling tool of the free electron laser device, a bottom plate regulator is arranged between adjacent section cavity bottom plate assemblies, between the upstream valve bottom plate and the section cavity bottom plate assembly and/or between the section cavity bottom plate assembly and the monitoring bottom plate.

Further, the accelerator cavity device assembling tool of the free electron laser device provided by the invention comprises a base plate adjuster, a base plate adjusting bolt and base plate adjusting nuts, wherein the base plate adjuster comprises two fixedly arranged clamping seats, the base plate adjusting bolt is arranged between the two clamping seats, and the base plate adjusting nuts are in threaded connection with the base plate adjusting bolt and are distributed on two sides of the clamping seats; or the bottom plate adjuster comprises two clamping seats fixedly arranged, bottom plate adjusting nuts, a first screw rod, a second screw rod and an elastic joint, the thread directions of the first screw rod and the second screw rod are opposite, one end of the first screw rod is fixed on two sides of one of the clamping seats through the two bottom plate adjusting nuts, and the other end of the first screw rod is in threaded connection with the elastic joint; one end of the second screw rod is fixed on two sides of the other clamping seat through the two bottom plate adjusting nuts, and the other end of the second screw rod is in threaded connection with the elastic joint.

Further, the accelerator cavity device assembling tool of the free electron laser device provided by the invention is characterized in that a track platform for moving in the X direction is arranged below the base, and a track locker for locking or unlocking the track platform is arranged on the base; the rail locker comprises a pressing seat, a pressing hand and a connecting rod, wherein the pressing hand and the connecting rod are hinged on the pressing seat, and a pressing rod is vertically arranged on the connecting rod.

and the cavity distance controllers are arranged between the downstream cavity adjusting bracket and the upstream cavity adjusting bracket at the joint of the adjacent cavity sections, between the valve adjusting bracket of the upstream valve and the upstream cavity adjusting bracket and/or between the downstream cavity adjusting bracket and the monitoring adjusting bracket.

Further, the accelerator cavity device assembling tool of the free electron laser device provided by the invention comprises: the first fixture and the second fixture are adjustably connected with the first fixture along the X direction;

the first fixture comprises a first fixture head with a first fixture head groove and a first fixture waist with a first fixture waist groove, the first fixture head and the first fixture waist are connected to a universal pillar of one of the adjusting brackets through a first fastener arranged along the X direction, and a first avoiding groove for avoiding the first fastener is arranged on the first fixture waist along the Y direction;

the second fixture comprises a second fixture head with a second fixture head groove and a second fixture waist with a second fixture waist groove, the second fixture head and the second fixture waist are connected to a universal pillar of another adjusting bracket through a second fastener arranged along the X direction, and a second avoiding groove for avoiding the second fastener is arranged on the second fixture waist along the Y direction;

the first fixture waist and the second fixture waist are connected in an adjustable mode along the X direction through a third fastener arranged along the Z direction.

the coupler mounting bracket comprises a bracket chassis, a bracket upright post, a height adjusting mechanism and a horizontal adjusting mechanism which are sequentially arranged, and a large flange clamp and a small flange clamp which are arranged on the horizontal adjusting mechanism and used for mounting a coupler, wherein the large flange clamp and the small flange clamp are adjustable in height.

Further, in the accelerator cavity device assembling tool of the free electron laser device, provided by the invention, in the coupler mounting bracket, the height adjusting mechanism comprises a lower adjusting plate arranged on a bracket upright post, and the lower adjusting plate is connected with an upper adjusting plate through a height adjusting bolt; and/or in the coupler mounting bracket, the horizontal adjusting mechanism comprises a fixed plate arranged on the height adjusting mechanism through a plate adjusting bolt, and the fixed plate is provided with a sliding plate which moves in the Y direction relative to the fixed plate; the side wall of the fixed plate is provided with a guide side plate, and the guide side plate is in threaded connection in the X direction or abuts against the fixed plate through an X-direction adjusting bolt.

Further, in the accelerator cavity device assembling tool of the free electron laser device, the fixed plate is provided with at least two parallel guide rails in the Y direction in the coupler mounting bracket, and the sliding plate is provided with a sliding groove matched with the guide rails; or in the coupler mounting bracket, the fixing plate is provided with at least two parallel guide wheels in the Y direction, and the sliding plate is provided with a sliding groove matched with the guide wheels.

Further, in the accelerator cavity device assembling tool for the free electron laser device, provided by the invention, in the coupler mounting bracket, the large flange clamp comprises a lower clamp fixedly connected with the sliding plate and provided with a lower clamping opening, and an upper clamp connected to the lower clamp through a clamp bolt and provided with an upper clamping opening, wherein the upper clamping opening of the upper clamp and the lower clamping opening of the lower clamp are used for fixing the large flange of the coupler; and/or in the coupler mounting bracket, the small flange clamp comprises a Z-shaped plate arranged on the horizontal adjusting mechanism, the Z-shaped plate is adjustably connected with a small flange supporting plate in the Z direction through a small flange adjusting rod, and a groove for supporting a small flange of the coupler is arranged on the small flange supporting plate.

Further, in the accelerator cavity device assembling tool for the free electron laser device, provided by the invention, in the coupler mounting bracket, a Y-direction limiting mechanism for limiting the moving position of the sliding plate is arranged on the fixing plate along the Y direction, the Y-direction limiting mechanism comprises a limiting block arranged on the fixing plate, a Y-direction limiting bolt is arranged on the fixing plate and penetrates through the limiting block in the Y direction, and the Y-direction limiting bolt is in threaded connection with or abuts against the sliding plate; and/or in the coupler installing support, the coupler installing support also comprises a Z-direction limiting mechanism, and the Z-direction limiting mechanism comprises a Z-direction limiting bolt which vertically penetrates through the sliding plate and is in threaded connection with or abuts against the fixing plate.

Further, the accelerator cavity device assembling tool for the free electron laser device, provided by the invention, further comprises a lock vertically arranged on the support upright post in the coupler mounting support, wherein the lock comprises a first lock plate and a second lock plate connected with the first lock plate through a lock plate bolt, and the first lock plate and the second lock plate are respectively provided with a groove for fixing on the upright post.

the coupler locking device comprises a lower truss and an upper truss which are arranged in parallel along the Y direction, wherein vertical bolts used for fixing the coupler in the radial direction are arranged on the lower truss, and each vertical bolt comprises a first vertical bolt for fixing a small flange of the coupler in the radial direction and a second vertical bolt for fixing a large flange of the coupler in the radial direction; and an end plate is arranged on the upper truss in a perpendicular mode, and a transverse bolt for fixing a large flange of the coupler in the axial direction is arranged on the end plate.

Further, in the accelerator cavity device assembling tool for the free electron laser device, provided by the invention, in the coupler locking device, the lower truss is provided with lower waist-shaped holes which respectively penetrate through the first vertical bolt and the second vertical bolt, the end plate of the upper truss is provided with upper waist-shaped holes which penetrate through the transverse bolt, and the lower waist-shaped holes and the upper waist-shaped holes are distributed along the X direction.

In order to solve the above technical problem, the present invention further provides a technical solution: an accelerator cavity device assembling method of a free electron laser device adopts the accelerator cavity device assembling tool of the free electron laser device;

adjusting the levelness and height of the cavity bodies through the upstream cavity adjusting bracket and the downstream cavity adjusting bracket so as to enable the axial centers of the cavity bodies to achieve coaxiality;

the rotation angle of each section cavity is adjusted through the rotation angle fine adjustment support, so that the angle of each section cavity meets the position requirement;

and assembling adjacent cavity bodies through corrugated pipes to form cavity strings.

Furthermore, the accelerator cavity device assembling method of the free electron laser device provided by the invention adjusts the levelness and height of the vacuum tube in the low-temperature monitoring chamber through the monitoring and adjusting bracket, so as to adjust the axial center of the vacuum tube and the axial center of the cavity string to achieve the coaxiality, and assemble the cavity string and the vacuum tube and the low-temperature monitoring chamber sleeved on the vacuum tube through the corrugated tube; the upstream valve and the downstream valve are fixedly connected through the valve adjusting bracket respectively, and the levelness and the height of the valve are adjusted through the valve adjusting bracket, so that the axial centers of the upstream valve and the downstream valve and the axial center of the cavity string reach the coaxiality, the upstream valve and the cavity string are assembled through the corrugated pipe, and the downstream valve and the vacuum pipe and the low-temperature monitoring chamber sleeved on the vacuum pipe are assembled;

further, the accelerator cavity device assembling method of the free electron laser device provided by the invention is characterized in that the coupler is installed on the cold end of the cavity body through the coupler installation support to complete the assembly of the coupler; and detaching the coupler mounting bracket, and locking and fixing the coupler on the cold end of the section cavity through the coupler locking device.

Compared with the prior art, the accelerator cavity device assembling tool and method for the free electron laser device provided by the invention have the advantages that the cavity body of the accelerator cavity device can be roughly adjusted in the X, Y, Z direction and finely adjusted in the Y direction and the Z direction through the upstream cavity adjusting support and the downstream cavity adjusting support, so that the cavity body meets the installation accuracy requirements in the horizontal direction and the height direction. The angular position of the joint cavity of the accelerator cavity device is adjusted by rotating the fine adjustment support, so that the installation precision requirement of the joint cavity, which meets the angular position, is met.

Drawings

Fig. 1 is a schematic perspective view of an accelerator cavity device assembly fixture in an installation state according to an embodiment of the present invention;

fig. 2 to 3 are schematic partial perspective views of the assembly fixture of the accelerator chamber device in fig. 1 in an installation state;

fig. 4 is a schematic perspective view of an assembly tool main body structure of an accelerator cavity device according to an embodiment of the present invention;

FIGS. 5 to 6 are schematic partial perspective views of the main assembly fixture structure of the cavity assembly of the accelerator in FIG. 4;

FIG. 7 is a schematic perspective view of a valve adjustment bracket according to an embodiment of the present invention;

FIG. 8 is a schematic perspective view of a valve adjustment bracket according to another embodiment of the present invention;

FIG. 9 is a schematic perspective view of an upstream lumen tuning support according to an embodiment of the present invention;

FIG. 10 is a schematic perspective view of a downstream lumen tuning support according to an embodiment of the present invention;

FIG. 11 is a schematic perspective view of a monitor adjustment bracket according to an embodiment of the present invention;

FIG. 12 is a schematic perspective view of a universal stanchion of an embodiment of the present invention;

FIG. 13 is a front view of a universal stanchion of an embodiment of the present invention;

FIG. 14 is a side view of a universal brace of an embodiment of the present invention;

FIG. 15 is a cross-sectional view taken along line A-A of FIG. 14;

FIG. 16 is a cross-sectional view of an axial adjustment screw of the universal stanchion of the embodiment of the present invention;

FIG. 17 is a cross-sectional structural view of a flange of a universal post according to an embodiment of the present invention;

FIG. 18 is a perspective view of a fine tuning support for rotational angle according to an embodiment of the present invention;

fig. 19 is a schematic front view of a rotation angle fine-tuning bracket according to an embodiment of the present invention;

FIG. 20 is a schematic side view of a rotational angle fine tuning support according to an embodiment of the present invention;

fig. 21 is a schematic perspective view of a rotation angle fine adjustment bracket according to an embodiment of the present invention in a use state in a joint cavity;

fig. 22-23 are perspective views of a coupler mounting bracket according to an embodiment of the invention;

FIG. 24 is a front view schematic diagram of a coupler mounting bracket of an embodiment of the present invention;

FIG. 25 is a side view schematic of a coupler mounting bracket according to an embodiment of the invention;

FIG. 26 is a schematic top view of a coupler mounting bracket according to an embodiment of the invention;

FIG. 27 is a perspective view of a coupler mounting bracket of an embodiment of the present invention in use;

fig. 28 is a schematic perspective view of a coupler locking device according to an embodiment of the present invention;

fig. 29 is a front view structural schematic diagram of a coupler locking device of an embodiment of the present invention;

fig. 30 is a perspective view schematically showing the use state of the coupler lock device according to the embodiment of the present invention;

fig. 31 is a schematic perspective view of a cavity distance controller according to an embodiment of the present invention;

FIG. 32 is a schematic diagram of a front view of a chamber distance controller according to an embodiment of the present invention;

fig. 33 is a schematic perspective view of a first fixture of the cavity distance controller according to the embodiment of the present invention;

fig. 34 is a schematic perspective view of a second fixture of the cavity distance controller according to the embodiment of the present invention;

FIG. 35 is a schematic perspective view of an upstream valve bottom plate and node chamber bottom plate assembly according to an embodiment of the invention;

FIG. 36 is a schematic perspective view of a segmented cavity floor assembly according to an embodiment of the invention;

FIG. 37 is a schematic perspective view of a node chamber floor assembly with a monitoring floor and a downstream valve floor according to an embodiment of the invention;

FIG. 38 is a schematic perspective view of a floor conditioner according to an embodiment of the present invention;

FIG. 39 is a schematic perspective view of a floor conditioner according to another embodiment of the present invention;

fig. 40 is a schematic perspective view of a rail locker according to an embodiment of the present invention;

shown in the figure:

90. accelerator cavity means, 91, node cavity, 91a, ear plate, 92, upstream end, 93, downstream end, 94, cold end, 95, coupler, 95a, small flange, 95b, large flange, 96, upstream valve, 97, downstream valve, 98, low temperature monitoring chamber, 99, bellows;

100. the device comprises an accelerator cavity device assembling tool, 110, an upstream cavity adjusting support, 111, an upstream cavity supporting plate, 111a, an upstream cavity transverse plate, 111b, an upstream cavity vertical plate, 111c, an upstream cavity lower semi-circle arc-shaped groove, 111d, an avoiding hole, 112, an upstream cavity Z-direction fine-tuning screw rod, 113, an upstream cavity fixing bolt, 114 and an upstream cavity adjusting gasket;

120. the downstream cavity adjusting support comprises a downstream cavity adjusting support frame 121, a downstream cavity supporting plate 121a, a downstream cavity transverse plate 121b, a downstream cavity vertical plate 121c, a downstream cavity lower half-circumference arc-shaped groove 121d, an arc-shaped convex rib 121e, an extension plate 122, a downstream cavity Z-direction fine-adjustment screw rod 123, a downstream cavity fixing bolt 124, a downstream cavity adjusting gasket 125, a hoop plate 125a and an upper half-circumference arc-shaped groove;

130. the rotation angle fine adjustment support comprises a rotation angle fine adjustment support 131, a rotating frame chassis 131a, a rotating frame chassis Y-direction adjustment hole 132, a rotating frame support post 133, a flat plate 134, a vertical plate 134a, a first through hole 134b, a second through hole 134c, a third through hole 135, a hanging lug fixing bolt 136, an angle adjustment bolt 137, a reinforcing rib plate 138, a support post bolt 139 and a disk body bolt;

140. valve adjusting bracket 141,

valve chassis

141, 141a, valve chassis Y-direction adjusting hole 142, valve pillar 143, valve top plate 144, valve slide plate 144a, valve X-direction side plate 144b, valve X-direction horizontal fine adjusting bolt 144c, valve Y-direction side plate 144d, valve Y-direction horizontal fine adjusting bolt 145,

slide plate bolt

145, 145a, slide plate adjusting washer 146, valve Z-direction fine adjusting bolt 146a, double-headed screw rod 146b, supporting plate 146c, inner nut 146d, outer nut 147,

valve support plate

147, 147a, threaded hole 148, valve bolt 149, chassis fixing bolt;

150. coupler locking device, 151, lower truss, 151a, lower kidney-shaped hole, 152, first vertical bolt, 153 second vertical bolt, 154, upper truss, 155, end plate, 155a, upper kidney-shaped hole, 156, transverse bolt;

160. a monitoring adjusting bracket 161, a monitoring supporting plate 161a, a monitoring transverse plate 161b, a monitoring vertical plate 161c, a monitoring lower half-circle arc-shaped groove 162, a monitoring Z-direction fine adjusting screw 163, a monitoring fixing bolt 164 and a monitoring adjusting washer;

170. coupler mounting bracket 171, bracket chassis 172, first angle connector 173, bracket upright post 173a, second angle connector 174, height adjustment mechanism 174a, lower adjustment plate 174b, height adjustment bolt 174c, upper adjustment plate 175, horizontal adjustment mechanism 175a, fixed plate 175b, guide rail 175c, slide plate 175d, slide groove 175e, guide side plate 175f, X-direction adjustment bolt 175g, plate adjustment bolt 176, large flange clamp 176a, lower clamp 176b, upper clamp 176c, lower clamp 176d, upper clamp opening 176e, clamp bolt 176f, limit pin 177, small flange clamp 177a, Z-shaped plate 177b, small flange adjustment rod 177c, small flange pallet 178,

clamp

178, 178a, first clamp plate 178b, second clamp plate 178c, clamp plate bolt 178d, clamp plate 178d, A third angle-shaped connecting piece 179, a Y-direction limiting mechanism 179a, a limiting block 179b, a Y-direction limiting bolt 179c and a Z-direction limiting bolt;

180. a base, 181, an upstream valve bottom plate, 182, a node chamber bottom plate assembly, 182a, an upstream chamber bottom plate, 182b, a downstream chamber bottom plate, 182c, a fixing strip, 182d, a rail locker, 182d1, a pressure seat, 182d2, a pressure hand, 182d3, a connecting rod, 182d4, a pressure rod, 182e, a pressure hole, 183, a monitoring bottom plate, 184, a downstream valve bottom plate, 185, a bottom plate adjuster, 185a, a clamping seat, 185b, a bottom plate adjusting bolt, 185c, a bottom plate adjusting nut, 185d, a first screw, 185e, a second screw, 185f, a slack section, 185g, an adjusting hole;

190. a cavity distance controller 191, a first fixture head, 191a, a first fixture head groove, 192, a first fixture waist, 192a, a first fixture waist groove, 192b, a first avoidance groove, 192c, a first connection hole, 192d, a first step surface, 193, a first fastener, 194, a second fixture head, 194a, a second fixture head groove, 195, a second fixture waist, 195a, a second fixture waist groove, 195b, a second avoidance groove, 195c, a second connection hole, 195d, a second step surface, 196, a second fastener, 197, and a third fastener;

200. the universal support comprises a universal support, 201, a support chassis, 201a, a support chassis Y-direction adjusting hole, 202, a stand column pipe, 203, a flange plate, 203a, an internal thread hole, 203b, an upper protruding section, 203c, a fixing section, 203d, a lower protruding section, 203e, an embedding section, 203f, a fixing hole, 204, an axial adjusting screw rod, 204a, an upper thread section, 204b, a round platform, 204c, an upper smooth surface section, 204d, a lower thread section, 204e, a lower smooth surface section, 204f, a cutting surface, 205, an axial locking nut, 206, a U-shaped support, 207, a bearing plate, 207a through hole, 207b, a bearing threaded hole, 208, a hole round nut, 209, a bearing side plate, 210, a Y-direction fine adjusting screw rod, 211 and a radial locking screw rod; 212. flange bolts 213, chassis bolts 214, ring platen.

Detailed Description

The invention is described in detail below with reference to the attached drawing figures:

referring to fig. 1 to 3, the accelerator cavity device 90 of the free electron laser device sequentially includes an upstream valve 96, a cavity string, a low temperature monitoring chamber 98 and a downstream valve 97 which are communicated with each other in an up-down sequence. The cavity string is composed of a plurality of cavity segments 91, adjacent cavity segments 91 are communicated through a corrugated pipe 99, an upstream valve 96 is communicated with adjacent cavity segments 91 through the corrugated pipe 99, a downstream valve 97 is communicated with adjacent cavity segments 91 through a vacuum pipe and the corrugated pipe 99, and a low temperature monitoring chamber (BPM)98 is sleeved on the vacuum pipe and used for monitoring electron beams passing through the accelerator cavity device 90. The node cavity 91 includes an upstream end 92, a downstream end 93, a cold end 94, and an ear plate 91 a. A coupler 95 is connected to the cold end 94, the coupler 95 including a small flange 95a and a large flange 95 b.

Referring to fig. 1 to 6, an accelerator cavity assembly tooling 100 of a free electron laser device according to an embodiment of the present invention at least includes an upstream cavity adjusting bracket 110 and a downstream cavity adjusting bracket 120, and may further include a rotation angle fine-tuning bracket 130, a valve adjusting bracket 140, a coupler locking device 150, a monitoring adjusting bracket 160, a coupler mounting bracket 170, a base 180, a cavity distance controller 190, or a combination thereof.

Referring to fig. 1 to 6, the upstream cavity adjusting bracket 110 and the downstream cavity adjusting bracket 120 according to the embodiment of the present invention are used for mounting and supporting the cavity blocks 91 of the accelerator cavity device 90, and can adjust the coaxiality of the cavity string formed by the cavity blocks 91.

Referring to fig. 9, the upstream chamber adjusting bracket 110 according to the embodiment of the present invention includes a universal support column 200 and an upstream chamber supporting plate 111 disposed on the universal support column 200.

Referring to fig. 9, 12 to 17, the universal column 200 includes a column chassis 201 and a column tube 202 vertically connected to the column chassis 201, the column tube 202 is connected to an axial adjusting screw 204 extending into the column tube 202 through a flange 203, the axial adjusting screw 204 is connected to an axial locking nut 205 located above the flange 203 through a screw thread, the axial adjusting screw 204 is connected to a U-shaped bracket 206 through an open-hole round nut 208, a bearing plate 207 is disposed on the U-shaped bracket 206, bearing side plates 209 are disposed on two sides of the bearing plate 207, and a Y-direction fine adjustment screw 210 is disposed on the bearing side plates 209.

Referring to fig. 9, the carrier plate 207 is provided with an upstream cavity supporting plate 111 capable of performing fine adjustment in Z direction and Y direction with respect to the carrier plate 207, the upstream cavity supporting plate 111 includes an upstream cavity transverse plate 111a and an upstream cavity vertical plate 111b vertically connected to the upstream cavity transverse plate 111a, the upstream cavity vertical plate 111b is provided with an upstream cavity lower half-circle arc-shaped groove 111c matched with the upstream end of the node cavity 91, the upstream cavity transverse plate 111a is screwed to a carrier threaded hole 207b of the carrier plate 207 through an upstream cavity fixing bolt 113 and an upstream cavity adjusting washer 114 thereon, and the upstream cavity transverse plate 111a is further screwed to an upstream cavity Z-direction fine adjustment screw 112 and abuts against the upper surface of the carrier plate 207; the Y-direction fine adjustment screw 210 abuts against the side walls of the upstream cavity cross plate 111a or the upstream cavity vertical plate 111b at both ends in the Y direction, and is used for fine adjustment of the position of the upstream cavity supporting plate 111 in the Y direction.

Referring to fig. 15 to 16, the axial adjusting screw 204 includes, from top to bottom, an upper threaded section 204a, a circular platform 204b, an upper smooth surface section 204c, a lower threaded section 204d, and a lower smooth surface section 204 e. Referring to fig. 7, the flange plate 203 includes an internal threaded hole 203a disposed in the axial direction, the flange plate 203 sequentially includes an upper protruding section 203b, a fixed section 203c, a lower protruding section 203d, and an embedded section 203e in the axial direction, and the fixed section 203c has fixing holes 203f distributed in an array. Wherein the upper protruding section 203b and the lower protruding section 203d have an outer diameter smaller than that of the fixing section 203c, and the embedding section 203e has an outer diameter smaller than that of the inner diameter of the pillar tube 202.

Referring to fig. 9, 12 to 15, in order to ensure the reliable connection between the flange 203 and the column tube 202, for example, an annular platen 214 is fixedly connected to the outer diameter of the upper end of the column tube 202 by welding, the outer diameter of the annular platen 214 is the same as the outer diameter of the fixing section 203c of the flange 203, the annular platen 214 is connected to the flange 203 by a flange bolt 212, that is, the flange bolt 212 passes through the fixing hole 203f of the flange 203, and a through hole penetrating through the flange bolt 212 is also provided on the corresponding annular platen 214, so as to realize the reliable connection between the flange 203 and the column tube 202.

Referring to fig. 15, in order to further improve the reliable connection between the flange 203 and the column tube 202, an assembly groove is reserved when the annular platen 214 is fixedly connected to the column tube 202, and the lower protruding section 203d of the flange 203 is disposed in the assembly groove to prevent the flange 203 from moving, thereby improving the assembly accuracy. Referring to fig. 5 and 7, the upper protruding section 203b of the flange 203 can increase the axial length of the internal threaded hole 203a, and increase the adjustment length of the axial adjustment screw 204 in the Z direction, and can increase the bearing capacity of the axial lock nut 205 in the axial direction, and prevent the risk of breaking the flange 203. The embedding section 203e of the flange plate 203 extends into the column tube 202, the axial length of the internal thread hole 203a of the flange plate 203 can be increased, the adjusting length of the axial adjusting screw 204 in the Z direction can be increased, the stability of the flange plate 203 assembled on the column tube 202 can be prevented, the risk of sliding in the radial direction is prevented, and the assembling safety is improved. Wherein the lower thread section 204d of the axial adjusting screw 204 is in threaded connection with the internal thread hole 203a of the flange plate 203, and the height of the axial adjusting screw 204 in the Z direction, and thus the overall height of the upstream cavity adjusting bracket 110, is adjusted by axially adjusting the position of the screw 204 relative to the flange plate 203 in the axial direction.

Referring to fig. 9, 12 to 15, in order to improve the locking effect of the axial adjusting screw 204 after adjusting the length in the Z direction and prevent the axial adjusting screw 204 from loosening, the upright tube 202 is provided with a radial locking screw 211 extending into the upright tube 202 in the radial direction for locking the lower smooth surface section 204e of the axial adjusting screw 204.

Referring to fig. 9 and 12, in order to facilitate the length adjustment of the axial adjusting screw 204 in the Z direction, the upper smooth surface section 204c of the axial adjusting screw 204 is provided with a cutting surface 204f, so that a hand tool such as a wrench can contact the cutting surface 204f to adjust the axial adjusting screw 204 in the Z direction. The cutting face 204f may be provided with one face, two opposing faces, or four perpendicularly opposing faces.

Referring to fig. 9, 12 to 15, the circular platform 204b of the axial adjusting screw 204 is supported below the U-shaped bracket 208, and the U-shaped bracket 206 is fixed on the axial adjusting screw 204 by the circular nut 208 with holes. The hole of the perforated round nut 208 in the radial direction is screwed in or out of the perforated round nut 208 by an external tool to lock or unlock the U-shaped bracket 208. The hole can be a round hole or a regular polygonal hole. The design of the perforated round nut 208 can make the height of the side wall of the U-shaped bracket 208 as small as possible, so as to improve the structural stability of the U-shaped bracket 208. And the structural design of the bearing plate 207 and the U-shaped bracket 208 can be more compact, and the structural stability is improved. Referring to fig. 12, in order to facilitate the assembly of the perforated round nut 208, a through hole 207a is formed in the bearing plate 207, so that the perforated round nut 208 falls into the upper threaded section 204e of the axial adjustment screw 204 through the through hole 207 a. The perforated round nut 208 may be replaced by a regular polygonal nut in terms of structural stability.

Referring to fig. 9, 12-15, the pillar base 201 of the upstream chamber adjusting bracket 110 of the embodiment of the present invention includes, but is not limited to, a rectangular shape, the pillar tube 202 includes, but is not limited to, a round steel tube or a square steel tube, and the flange 203 includes, but is not limited to, a circular ring shape.

Referring to fig. 9, in order to avoid the damage to the segment cavity 91 when the segment cavity 91 of the accelerator cavity device 90 is assembled, an avoiding hole 111d is formed through the lower half-circumference arc-shaped groove 111c of the upstream cavity supporting plate 111.

Referring to fig. 9, 12-15, a method of installing the upstream chamber adjustment bracket 110 according to an embodiment of the present invention includes coarse adjustment and fine adjustment. The method of coarse adjustment of the upstream lumen of the stent 110 includes: the upstream end of the node chamber body 91 is placed on the upstream chamber lower half-circumference arc groove 111c of the upstream chamber adjusting bracket 110. Coarse adjustment in the horizontal direction can be achieved by the integral movement of the upstream chamber adjustment bracket 110, and coarse adjustment in the Z direction of the upstream chamber adjustment bracket 110 can be achieved by the rotational length of the axial adjustment screw 204 to coarsely adjust the upstream end 92 of the node chamber 91 in the Z direction. The method of fine tuning the upstream lumen adjustment stent 110 includes: loosening the upstream cavity fixing screw 113, adjusting the height position of the upstream cavity supporting plate 111 relative to the bearing plate 207 in the Z direction by adjusting the screwing length of the upstream cavity Z-direction fine adjustment screw 112, so as to perform fine adjustment on the upstream cavity supporting plate 111 in the Z direction, and further perform fine adjustment on the position of the upstream end 92 of the adjusting cavity 91 in the Z direction; by adjusting the screwing length of the Y-direction fine adjustment screw 210, the relative position distance between the side wall of the upstream cavity supporting plate 111 in the Y direction and the bearing side plate 209 is adjusted, so that the upstream cavity supporting plate 111 is finely adjusted in the Y direction, and the position of the upstream end 92 of the cavity 91 is finely adjusted in the Y direction; the upstream chamber set screw 113 is tightened after adjustment to the proper position. The upstream cavity adjusting bracket 110 provided by the embodiment of the invention can roughly adjust the cavity body of the accelerator cavity device in the X, Y, Z direction and finely adjust the cavity body in the Y direction and the Z direction, so that the cavity body 91 meets the requirement of installation accuracy.

Referring to fig. 9, the position of the upstream cavity transverse plate 111a corresponding to the upstream cavity fixing screw 113 is a through hole (for short, a large circular hole) or a waist-shaped hole larger than the diameter of the upstream cavity fixing screw 113, when the upstream cavity fixing screw 113 is unscrewed and the screwing length of the Y-direction fine adjustment screw 210 is adjusted in the Y direction, the upstream cavity fixing screw 113 moves along with the screwing length of the Y-direction fine adjustment screw 210, that is, the upstream cavity fixing screw 113 and the Y-direction fine adjustment screw 210 generate a linkage effect, and when fine adjustment is performed in the Y direction and the Z direction to meet the position requirement, the upstream cavity supporting plate 111 is locked and fixed by the upstream cavity adjusting washer 114 having an outer diameter larger than the through hole.

Referring to fig. 10, 12 to 17, a downstream chamber adjusting bracket 120 according to an embodiment of the present invention includes a common support column 200 having the same structure as the upstream chamber adjusting bracket 110, and a downstream chamber supporting plate 121 disposed on the common support column 200.

Referring to fig. 10, the downstream cavity supporting plate 121 includes a downstream cavity transverse plate 121a and a downstream cavity vertical plate 121b vertically connected to the downstream cavity transverse plate 121a, the downstream cavity vertical plate 121b is provided with a downstream cavity lower half-circumference arc-shaped groove 121c matched with the downstream end 93 of the segment cavity 91, an arc-shaped convex rib 121d may be arranged along the downstream cavity lower half-circumference arc-shaped groove 121c, the downstream cavity transverse plate 121a is screwed to a bearing screw hole 207b of the bearing plate 207 through a downstream cavity fixing bolt 123 and a downstream cavity adjusting washer 124 thereon, the downstream cavity transverse plate 121a is further screwed with a downstream cavity Z-direction fine adjustment screw 122 and abuts against an upper surface of the bearing plate 207, and the Y-direction fine adjustment screw 210 abuts against side walls at two ends of the downstream cavity transverse plate 121a or the downstream cavity vertical plate 121b in the Y direction for fine adjustment of the position of the downstream cavity supporting plate 121 in the Y. Referring to fig. 9 and 10, the downstream chamber plate 121 has the same structure as the upstream chamber plate 111 except for an arc-shaped rib 121d that may be provided.

Referring to fig. 10, the position of the downstream cavity transverse plate 121a corresponding to the downstream cavity fixing screw 123 in the embodiment of the present invention is a through hole (for short, a large circular hole) or a kidney-shaped hole larger than the diameter of the downstream cavity fixing screw 123. Referring to fig. 10, 12-15, the installation method of the downstream chamber adjustment bracket 160 according to the embodiment of the present invention includes coarse adjustment and fine adjustment, wherein the coarse adjustment in the Z direction is realized by the axial adjustment screw 204. The fine-tuning mounting method is to perform fine tuning in the Y direction by the Y-fine tuning screw 210 and fine tuning in the Z direction by the downstream chamber Z-fine tuning screw 122. The adjustment principle of the specific installation method is the same as that of the upstream chamber adjusting bracket 110. And will not be repeated here.

Referring to fig. 1 to 6, the accelerator cavity device assembling tool 100 according to the embodiment of the present invention may further include a rotation angle fine-tuning bracket 130 for adjusting the rotation angle of the adjustment cavity 91.

Referring to fig. 18 to 21, a rotation angle fine-tuning bracket 130 according to an embodiment of the present invention includes a rotating frame chassis 131, a rotating frame support 132 vertically connected to the rotating frame chassis 131, a flat plate 133 vertically arranged on the rotating frame support 132, vertical plates 134 arranged at two ends of the flat plate 133 in a Y direction, a distance between the two vertical plates 134 in the Y direction is greater than or equal to a diameter of a joint cavity 91 of an accelerator cavity device, a first through hole 134a and a second through hole 134b are sequentially arranged on the vertical plates 134 from top to bottom, two ends of the vertical plates 134 in an X direction are provided with lug fixing bolts 135 penetrating through the first through hole 134a to fix two ends of a lug 91a of the joint cavity 91 of the accelerator cavity device in the X direction, two ends of the vertical plates 134 in the Z direction are provided with angle adjusting bolts 136 penetrating through the first through hole 134a, so as to fix the two ends of the hanging lug 91a of the section cavity 91 of the accelerator cavity device in the Z direction.

Referring to fig. 18, a distance between the two vertical plates 134 in the Y direction forms a nip of the cavity 91, and the distance between the two vertical plates 134 in the Y direction may be fixed or adjustable. When the distance between two vertical plates 134 in the Y direction is fixed, the vertical plates 134 and the flat plate 133 may be welded and fixed. When the distance between two vertical plates 134 in the Y direction is adjustable, at least one vertical plate 134 in the Y direction is adjustable to adapt to joint cavities with different diameters. For example, the vertical plate 134 is fixedly connected to the flat plate 133 through a Y-shaped hole provided on the vertical plate 134 and/or the flat plate 133 by a support bolt 138. Wherein the vertical plate 134 further includes a third through hole 134c positioned below the second through hole 134b in order to provide a sufficient operating space for the stay bolt 138.

Referring to fig. 19, in order to improve the strength and stability of the flat plate 133 and the vertical plate 134, a reinforcing rib plate 137 is disposed between the rotating frame pillar 132 and the flat plate 133.

Referring to fig. 21, in order to achieve the purpose of fine-tuning the rotation angle of the joint cavity 91 by the rotation angle fine-tuning support 130, the joint cavity 91 needs to be supported by the upstream cavity adjusting support 110 and the downstream cavity adjusting support 120 before the rotation angle fine-tuning support 130 is installed. In the embodiment of the present invention, for the purpose of fine tuning the rotation angle of the cavity 91, the upstream cavity adjusting bracket 110 is not limited to the adjusting function, and may also be an upstream end bracket of other structures, and the downstream cavity adjusting bracket 120 is not limited to the adjusting function, and may also be a downstream end bracket of other structures.

Referring to fig. 18 to 21, a rotation angle fine-tuning method of the rotation angle fine-tuning bracket 130 according to the embodiment of the invention includes:

the rotation angle fine-tuning support 130 is assembled on two sides of a hanging lug 91a of a section cavity 91 of the accelerator cavity device, the hanging lug 91a is located in a first through hole 134a, the hanging lug 91a is fixedly arranged in the X direction through a hanging lug fixing bolt 135, so that the section cavity 91 is kept unchanged at the current rotation angle, then the vertical distance between the hanging lug 91a and the first through hole 134a is adjusted through the rotation length of an angle adjusting bolt 136 in the Z direction, and therefore the rotation angle of the section cavity 91 is changed by driving the hanging lug 91a through the rotation length of the angle adjusting bolt 136, and the fine tuning of the rotation angle of the section cavity 91 is achieved. In the embodiment of the present invention, the lug fixing bolts 135 located at both ends in the X direction respectively abut against both end surfaces in the X direction of the lug 91a, and the angle adjusting bolts 136 located at both ends in the Z direction respectively abut against both end surfaces in the Z direction of the lug 91 a. Alternatively, the lug 91a may be provided with an internal threaded hole, and the lug fixing bolt 135 and the angle adjusting bolt may be screwed into the internal threaded hole of the lug 91a, respectively. The second through hole 134b is provided to provide an operation space for the angle-adjusting bolt 136 below the hanging lug 91a, so that the rotation length of the angle-adjusting bolt 136 in the body of the hanging lug 91a can be adjusted.

Referring to fig. 1, 3 to 4 and 6, the accelerator cavity assembly tool 100 according to the embodiment of the present invention may further include a monitoring adjustment bracket 160 for mounting and supporting the low temperature monitoring chamber 98 of the accelerator cavity assembly 90.

Referring to fig. 11 to 17, the monitoring adjustment bracket 160 according to the embodiment of the present invention includes a common support post 200 having the same structure as the upstream chamber adjustment bracket 110, and a monitoring plate 161 disposed on the common support post 200.

Referring to fig. 11, the monitoring plate 161 includes a monitoring horizontal plate 161a and a monitoring vertical plate 161b vertically connected to the monitoring horizontal plate 161a, the monitoring vertical plate 161b is provided with a monitoring lower semi-circular arc groove 161c matched with the low temperature monitoring chamber 98, the monitoring horizontal plate 161a is screwed to a bearing screw hole 207b of the bearing plate 207 through a monitoring fixing bolt 163 and a monitoring adjusting washer 164 thereon, the monitoring horizontal plate 161a is further screwed to a monitoring Z-direction fine adjustment screw 162 and abuts against the upper surface of the bearing plate 207, and the Y-direction fine adjustment screw 210 abuts against the side walls of the monitoring horizontal plate 161a or the monitoring vertical plate 161b at both ends in the Y direction for fine adjustment of the mounting position of the monitoring plate 161. Referring to fig. 9 and 11, a monitoring pallet 161 according to an embodiment of the present invention has the same structure as the upstream chamber pallet 111.

Referring to fig. 11 to 15, the installation method of the monitoring adjustment bracket 160 according to the embodiment of the present invention includes coarse adjustment and fine adjustment, wherein the coarse adjustment in the Z direction is implemented by an axial adjustment screw 204. The fine-tuning mounting method is to perform fine tuning in the Y direction by the Y fine-tuning screw 210 and fine tuning in the Z direction by monitoring the Z fine-tuning screw 162. The specific installation method is the same as the adjustment method of the upstream lumen adjustment stent 110 and will not be repeated here.

Referring to fig. 1 and 2, a coupler mounting bracket 170 of an embodiment of the present invention is used to mount coupler 95 to cold end 94.

Referring to fig. 22 to 26, the coupler mounting bracket 170 includes a bracket base 171, a bracket upright 173, a height adjustment mechanism 174, a horizontal adjustment mechanism 175, a large flange clamp 176, and a small flange clamp 177 with adjustable height.

Referring to fig. 22 to 25, the bracket bottom plate 171 includes, but is not limited to, a rectangular plate, and the bracket upright 173 includes, but is not limited to, a square steel pipe, an i-steel, a channel steel, etc. The bracket chassis 171 and the bracket upright 173 can be welded and fixed, and can also be fixedly connected by countersunk bolts such as hexagon socket head cap screws, and when the countersunk bolts can connect the bracket chassis 171 and the bracket upright 173, the bottom plane of the bracket chassis 171 is more flat, so that the structure of the coupler mounting bracket 170 is more stable. In order to improve the stable connection and strength between the bracket chassis 171 and the bracket upright 173, the first angle-shaped connecting piece 172 is respectively fixed with the bracket chassis 171 and the bracket upright 173 by bolts in a threaded connection manner, the height adjusting mechanism 174 arranged at the upper end of the bracket upright 173 can be fixed by welding or can be fixedly connected by bolts, and in order to provide the stability and strength for the connection between the height adjusting mechanism 174 and the bracket upright 173, the second angle-shaped connecting piece 173a can be fixed between the bracket upright 173 and the height adjusting mechanism 174 by bolts or welding. The first angle type connector 171a and the second angle type connector 173a are connected by bolts, which has the advantages of convenient assembly and disassembly and secondary recycling.

Referring to fig. 22 to 25, the height adjustment mechanism 174 includes a lower adjustment plate 174a and an upper adjustment plate 174c, and a height adjustment bolt 174b connected between the lower adjustment plate 174a and the upper adjustment plate 174c, and the height adjustment bolt 174b finely adjusts the coupler mounting bracket 170 in the Z direction by adjusting the distance between the lower adjustment plate 174a and the upper adjustment plate 174c, thereby finely adjusting the mounting position of the coupler 95. Wherein the bracket upright 173 is fixedly coupled to the lower adjustment plate 174a of the height adjustment mechanism 174.

Referring to fig. 22 to 25, the horizontal adjustment mechanism 175 includes a fixing plate 175a fixedly provided on an upper adjustment plate 174c of the height adjustment mechanism 174 by a plate adjustment bolt 175g, and a slide plate 175c capable of moving a position in the Y direction with respect to the fixing plate 175a, that is, the slide plate 175c slides in the Y direction with respect to the fixing plate 175 a. The fixing plate 175a is provided with at least two parallel guide rails 175b in the Y direction, and the sliding plate 175c is provided with a slide groove 175d matched with the guide rails 175 b. The guide rail 175b may be fixed to the fixing plate 175a by bolts, and the slide groove 175d may be fixed to the slide plate 175c by bolts. The slide plate 175c is shifted in position in the Y direction with respect to the fixed plate 175a by the guide rail 175b and the slide groove 175 d. Wherein the guide rail 175b may be replaced with a guide wheel, the slide plate 175c is moved in position in the Y direction with respect to the fixed plate 175a by the guide wheel and the slide groove 175 d. Guide side plates 175e are welded or bolted to the side walls of the fixing plate 175a parallel to the guide rails 175b or the guide wheels, and the guide side plates 175e of the embodiment of the present invention are four that are distributed at the corners of the fixing plate 175 a. The number of the guide side plates 175e is four, and it is possible to prevent the guide side plates having a full length from being disposed in parallel to the outer wall of the guide rail 175b and interfering with the slide plate 175 c. The guide side plate 175e adjusts the fixing plate 175a in the X direction by means of an X-direction adjustment bolt 175f, thereby finely adjusting the coupler mounting bracket 170 in the X direction. For example, the X-direction adjusting bolt 175f may abut against a sidewall of the fixing plate 175a, and at this time, the fixing plate 175a is fixedly connected to the upper adjusting plate 174c through the plate adjusting bolt 175g passing through an X-direction adjusting hole (not shown) formed in the fixing plate 175a, and a position of the upper adjusting plate 174c corresponding to the plate adjusting bolt 175g may be a through hole or a threaded hole, and the plate adjusting bolt 175g is required to be used with a nut when the through hole is formed. The X-direction adjusting hole may be a waist-shaped hole disposed along the X-direction or a circular hole (not shown) having a diameter larger than that of the plate adjusting bolt 175g, when the X-direction adjusting hole is a circular hole, the plate adjusting bolt 175g must be used in cooperation with a washer, and the outer diameter of the washer must be larger than that of the circular hole. The X-direction adjustment hole follows the fixing plate 175a to be interlocked in the X-direction. This structure of the X-direction adjusting bolt 175f abuts against the side wall of the fixing plate 175 a. For another example, the X-direction adjusting bolt 175f may be screwed on the fixing plate 175a to move the fixing plate 175a in the X direction by adjusting the rotation length of the X-direction adjusting bolt 175 f. In the above structure, the design in which the X-direction adjustment bolt 175f abuts against the side wall of the fixing plate 175a is higher in structural stability, strength and lifespan of the fixing plate 175a, compared to the design in which the X-direction adjustment bolt 175f is screwed into the fixing plate 175a, because it is not necessary to design a female screw hole in the guide fixing plate 175 a.

Referring to fig. 22 to 26, the large flange fixture 176 includes a lower fixture 176a having a lower clamping opening 176c fixedly connected to the sliding plate 175c, and an upper fixture 176b having an upper clamping opening 176d connected to the lower fixture 176a by a fixture bolt 176e, wherein the upper clamping opening 176d of the upper fixture 176c is disposed opposite to the lower clamping opening 176c of the lower fixture 176a for fixing the large flange 95b of the coupler 95. The upper clamp 176b can ensure that the coupler 95 does not fall off. Wherein the shapes of the lower clamping opening 176c and the upper clamping opening 176d are the circumscribed polygon of the large flange 95b, for example, the shapes of the lower clamping opening 176c and the upper clamping opening 176d are regular octagon, which is advantageous in that the large flange 95b has a certain operation space in the polygon shape compared to the circular shape completely matched with the large flange 95b, so as to adjust the rotation angle of the coupler 95. In order to prevent the coupler 95 disposed inside the lower jig 176a and the upper jig 176b from rotating about its axis, the lower jig 176a and/or the upper jig 176b are provided with a stopper pin 176f for fixing a large flange 95b of the coupler 95 in a radial direction, and the stopper pin 176f is inserted into an insertion groove on the large flange 95b to restrict the coupler 95 from rotating about its axis. Referring to fig. 1 to 6, the limit pin 176f according to the embodiment of the invention is disposed on the bottom plane of the lower nip 176c or the top plane of the upper nip 176 d. The large flange fixture 176 can be finely adjusted in the Y direction and the X direction according to the horizontal adjusting mechanism 175, and can also be finely adjusted in the Z direction according to the height adjusting mechanism 174, so as to meet the requirements of the installation position and the installation accuracy of the coupler 95.

Referring to fig. 22 to 26, the small flange fixture 177 includes a Z-shaped plate 177a fixedly disposed on the sliding plate 175c by welding or bolts, the Z-shaped plate 177a is adjustably connected to a small flange supporting plate 177c in the Z direction by a small flange adjusting rod 177b, and the small flange supporting plate 177c is provided with a groove for supporting the small flange 95a of the coupler 95, and the groove may have a V-shaped structure and may also be matched with an arc-shaped surface of the small flange 95 a. The small flange supporting plate 177c with the V-shaped structure reserves a certain operating space when contacting with the coupler 95, so as to adjust the position of the small flange 95a of the coupler 95, wherein the Z-shaped plate 177a of the small flange clamp 177 comprises a low-surface flat plate, a longitudinal vertical plate and a high-surface flat plate, the low-surface flat plate is fixedly connected with the sliding plate 175c, and the high-surface flat plate is suspended and extended out of the Y-direction end surface of the sliding plate 175c, so as to provide a larger free adjusting space for the small flange adjusting rod 177b in the Z-direction. The small flange adjustment stem 177b of an embodiment of the present invention includes a nut threadedly coupled thereto. The small flange clamp 177 can be finely adjusted in the Y direction and the X direction according to the horizontal adjusting mechanism 175, and can also be finely adjusted in the Z direction according to the height adjusting mechanism 174, and the height of the small flange supporting plate 177c is adjusted by the small flange adjusting rod 177b, so that the axes of the small flange 95a and the large flange 95b of the coupler 95 are kept at the same height, and the requirements of the installation position and the installation precision of the coupler 95 are met. The large flange clamp 176 and the small flange clamp 177 of the embodiment of the invention are used together, so that the coaxial installation of the coupler 95 relative to the cold end 94 can be ensured.

Referring to fig. 23, the coupler mounting bracket 170 according to the embodiment of the present invention further includes a limiting mechanism, and the limiting mechanism includes a Y-directional limiting mechanism and a Z-directional limiting mechanism. The fixing plate 175a is provided with a Y-direction limiting mechanism 179 for limiting the relative position movement of the sliding plate 175c along the Y direction, the Y-direction limiting mechanism 179 comprises a limiting block 179a arranged on the fixing plate 175a, a Y-direction limiting bolt 179b is arranged through the limiting block 179a in the Y direction, and the Y-direction limiting bolt 179b abuts against the side wall of the sliding plate 175c or is screwed on the sliding plate 175 c. The Z-direction limiting mechanism is a Z-direction limiting bolt 179c which vertically penetrates through the sliding plate 175c and is in threaded connection with the fixing plate 175a or abuts against the upper plane of the fixing plate 175 a.

Referring to fig. 22 to 27, in order to improve the stability of the coupler mounting bracket 170, the coupler mounting bracket 179 of the embodiment of the present invention further includes a lock 178 disposed on the bracket upright 173, where the lock 178 includes a first lock plate 178a vertically connected to the bracket upright 173 and a second lock plate 178b connected to the first lock plate 178a, the first lock plate 178a and the second lock plate 178b are fixed to the downstream chamber adjusting bracket 120 by a lock plate bolt 178c, and the first lock plate 178a and the second lock plate 178b are respectively provided with a half-arc groove matching with the upright tube of the downstream chamber adjusting bracket 120. The recesses in the first and

second locking plates

178a, 178b are not limited to being semi-arcuate and may match the shape of the cylinders to be joined, including but not limited to the downstream chamber adjustment bracket 120. Wherein the first locking plate 178a may be welded to the bracket upright 173. To avoid interference of lock 178 with components on the mast tube of downstream chamber adjustment bracket 120, first lock plate 178a may be bolted to bracket mast 173 via third angle connector 178d, thereby adjusting the height position of third angle connector 178d on bracket mast 173.

Referring to fig. 1, 3-4 and 6, a coupler locking device 150 according to an embodiment of the present invention is used to fix the coupler 95 to be firmly connected to the cold end 94.

Referring to fig. 28, 29 and 30, a coupler locking device 150 according to an embodiment of the present invention includes a lower truss 151 and an upper truss 154 that are arranged in parallel in a Y direction, wherein vertical bolts for fixing a coupler 95 in a radial direction are provided on the lower truss 151, and the vertical bolts include a first vertical bolt 152 for fixing a small flange 95a of the coupler 95 in the radial direction and a second vertical bolt 153 for fixing a large flange 95b of the coupler 95 in the radial direction; an end plate 155 is provided perpendicularly to the upper truss 154, and a transverse bolt 156 for fixing the large flange 95b of the coupler 95 in the axial direction is provided on the end plate 155. The method specifically comprises the following steps: the first vertical bolt 152 is fixedly connected in a threaded hole in the radial direction of the small flange 95a of the coupler 95, and the second vertical bolt 153 is fixedly connected in a threaded hole in the radial direction of the large flange 95b of the coupler 95; the lateral bolt 156 is attached in a threaded hole in an axial end face of the large flange 95b of the coupler 95.

Referring to fig. 28 to 30, a coupler locking device 150 according to an embodiment of the present invention is fixedly connected to a small flange 95a of a coupler 95 in a radial direction by a first vertical bolt 152 on a lower truss 151, fixedly attached to the large flange 95b of the coupler 95 in the radial direction by the second vertical bolts 153, fixedly attached to the large flange 95b of the coupler 95 in the axial direction by the transverse bolts 156 on the end plate 155 of the upper truss 154, so that the coupler 95 and the cold end 94 of the cavity 91 are locked to prevent the coupler 95 from being locked to the cold end 94, because the gravity of the large flange 95b of the coupler 95 is greater than that of the small flange 95a, the connection between the coupler 95 and the cold end 94 is loosened, so that the connection is unstable, and even the risk of inclination towards the large flange 95b of the coupler 95 occurs, so that the cold end of the coupling cavity 91 is stably connected with the coupler 95.

Referring to fig. 28 to 30, the installation adjustment method of the coupler locking device 150 according to the embodiment of the present invention includes: the first vertical bolt 152 and the second vertical bolt 153 of the lower truss 151 and the lower truss 151 are finely adjusted in the X direction through the lower waist-shaped hole 151a, and the transverse bolt 156 on the upper truss 154 is finely adjusted in the X direction through the upper waist-shaped hole 155a arranged on the end plate 155, so that the cold end 94 of the joint cavity 91 is accurately installed and stably connected with the coupler 95.

Referring to fig. 28 and 29, in order to improve the installation accuracy of the first vertical bolt 152, the second vertical bolt 153, the transverse bolt 156 and the coupler 95, in the coupler locking device 150 according to the embodiment of the present invention, the lower truss 154 is provided with lower kidney-shaped holes 151a respectively penetrating through the first vertical bolt 152 and the second vertical bolt 153, the end plate 155 of the upper truss 154 is provided with upper kidney-shaped holes 155a penetrating through the transverse bolt 156, and the lower kidney-shaped holes 151a and the upper kidney-shaped holes 155a are distributed along the X direction. The first vertical bolt 152, the second vertical bolt 153 and the transverse bolt 156 can be adjusted in position in the X direction, thereby improving the accuracy of their installation with the coupler 95. Of course, the first vertical bolt 152, the second vertical bolt 153 and the transverse bolt 156 need to be used with nuts when adjusting the position in the X direction.

For convenience of assembly and material availability, the lower truss 151 and the upper truss 154 of the embodiment of the present invention may both use angle steel or angle iron.

Referring to fig. 28 to 30, the coupler locking device 150 according to the embodiment of the present invention may further include, but is not limited to, the above-mentioned downstream chamber adjusting bracket 120, etc., on which the lower truss 151 and the upper truss 154 are disposed. For example: when the coupler locking device 150 is disposed on the downstream cavity adjustment bracket 120, the lower truss 151 may be disposed on the downstream cavity riser 121b by welding or bolting, and the upper truss 154 may be disposed on the band plate 125 by welding or bolting.

Referring to fig. 28 and 29, in the downstream cavity adjusting bracket 120 according to the embodiment of the present invention, the downstream cavity riser 121b is provided with a hoop plate 125, and the hoop plate 125 is provided with an upper half-circumference arc-shaped groove 125a of the downstream cavity matching with the upper half-circumference of the downstream end 93 of the segment cavity 91. Wherein the lower half of the downstream chamber lower half arc groove 121c and the upper half of the upper half arc groove 125a include, but are not limited to 1/2 circles and may be larger or smaller than 1/2 circles. In the embodiment of the invention, the lower half-circumference arc-shaped groove 121C of the downstream cavity and the upper half-circumference arc-shaped groove 125a of the downstream cavity form an unclosed C-shaped structure, and the unclosed C-shaped structure can avoid the occurrence of the blocking condition when the vertical plate 121b of the downstream cavity and the hoop plate 125 are assembled at the downstream end of the cavity 91. One end of the downstream cavity vertical plate 121b extends in the Y direction to form an extension plate 121e, and the extension plate 121e is fixedly connected with the hoop plate 125 through a hoop bolt 121f in a threaded manner, so that the downstream cavity vertical plate 121b can be conveniently detached. The arc ribs 121d arranged along the arc grooves 121c on the lower half circumference of the downstream cavity can be clamped in the grooves of the downstream end 93 of the segment cavity 91, so that the reliable connection of the downstream cavity supporting plate 121 and the downstream end 93 of the segment cavity 91 is realized. Wherein the setting of embracing hoop plate 125 can play more firm effect to the installation and the support of the downstream end 93 of festival cavity 91 on the one hand, prevents to save cavity 91 and receives the exogenic action and take place the risk that the position removed and topple over even, and on the other hand can make the installation of truss 154 more reliable.

The coupler locking device 150 and the downstream cavity adjusting bracket 120 of the embodiment of the invention are matched, so that the cavity of the accelerator cavity device can be roughly adjusted in the X, Y, Z direction and finely adjusted in the X, Y, Z direction, and the coupler can be accurately installed and stably connected, so that the cavity and the coupler meet the requirements of installation accuracy and stable connection.

Referring to fig. 1 to 8, a valve adjusting bracket 140 according to an embodiment of the present invention is used for mounting and supporting the upstream valve 96 and the downstream valve 97 of the accelerator chamber assembly 90.

Referring to fig. 7 to 8, the valve adjusting bracket 140 according to the embodiment of the present invention includes the following two schemes.

Referring to fig. 7, in order to improve the mounting accuracy of the upstream valve 96 and the downstream valve 97 in the X direction and the Z direction, the valve adjusting bracket 140 according to the first embodiment of the present invention includes: a valve base plate 141, a valve support 142 vertically connected to the valve base plate 141, a valve top plate 143 vertically connected to an upper end of the valve support 142, the valve top plate 143 is connected to a valve slide plate 144 by a slide plate bolt 145 and a slide plate adjustment washer 145a thereon, a threaded hole (not shown) is formed on the valve top plate 143 at a position corresponding to the slide plate bolt 145, a horizontal adjustment hole (not shown) is formed in the valve slide plate 144 at a position corresponding to the slide plate bolt 145, valve X-direction side plates 144a are arranged at the X-direction two ends of the valve sliding plate 144, valve X-direction horizontal fine adjustment bolts 144b are arranged on the valve X-direction side plates 144a, the opposite end of the screw head of the horizontal fine adjustment bolt 144b of the valve X abuts against the side wall of the valve top plate 143, the valve slide 144 is connected to a valve support plate 147 by a valve Z-trim bolt 146, and the valve support plate 147 is provided with a valve bolt 148 for fixing a valve of the accelerator chamber assembly.

Referring to fig. 7, a valve adjusting bracket 140 according to a first embodiment of the present invention, wherein a valve base plate 141 includes but is not limited to a square, a valve support column 142 includes but is not limited to a round steel pipe, a valve top plate 143 includes but is not limited to a square steel plate, a valve sliding plate 144 and a valve X-directional side plate 144a include but is not limited to an integral structure, and a valve support plate 147 includes but is not limited to a square steel plate, wherein a connection portion between the valve support plate 147 and a valve bolt 148 includes but is not limited to a protrusion structure, so as to increase strength of the valve bolt 148 connecting the valve and prevent.

Referring to fig. 7, in the valve adjusting bracket 140 according to the first embodiment of the present invention, two Z-direction fine tuning bolts 146 are disposed at two ends of the valve sliding plate 144 in the Y direction. Wherein, the valve Z-direction fine tuning bolt 146 comprises a double-headed screw 146a, and the upper ends of the double-headed screw 146a are respectively provided with an outer nut 146d positioned on the upper side of the valve support plate 147 and an inner nut 146c positioned on the lower side of the valve support plate 147; the lower ends of the double-headed screws 146a are each provided with an outer nut 146d on the lower side of the valve slide plate 144 and an inner nut 146c on the upper side of the valve slide plate 144. At this time, the connecting positions of the Z-direction fine tuning bolts 146 corresponding to the valve slide plate 144 and the valve fulcrum plate 147 are through holes. In order to improve the locking effect of the Z-direction fine adjustment bolt 146 and prevent loosening, a tapered washer 146e and a spherical washer 146f are provided between the inner nut 146c and the outer nut 146d and the corresponding plate bodies.

Referring to fig. 7, a valve adjusting bracket 140 according to a first embodiment of the present invention is installed as follows: first, the valve bolt 148 is screwed to the upstream valve 96 or the downstream valve 97 to fix the corresponding valve by the valve adjusting bracket 140; then the distance between the valve sliding plate 144 and the valve support plate 147 is adjusted through a Z-direction fine adjustment bolt 146, so that Z-direction fine adjustment of the valve is performed; next, the slide plate bolt 145 is loosened to allow the valve slide plate 144 and the valve top plate 143 to slide relative to each other, the X-direction distance of the valve slide plate 144 relative to the valve top plate 143 is adjusted by the valve X-direction horizontal fine adjustment bolt 144b to perform X-direction fine adjustment of the valve, and the slide plate bolt 145 is tightened to allow the valve slide plate 144 and the valve top plate 143 to be locked relative to each other. In the first embodiment of the present invention, horizontal coarse adjustment can be performed in the X direction and the Y direction of the valve by the overall horizontal movement of the valve adjusting bracket 140, and fine adjustment can be performed in the X direction and the Z direction of the valve by the valve X-direction horizontal fine adjustment bolt 144b and the Z-direction fine adjustment bolt 146, so as to improve the installation accuracy of the upstream valve 96 and the downstream valve 97. The specific adjusting method of the X-direction fine adjustment comprises the following steps: since the opposite end of the screw head of the valve X-direction horizontal fine adjustment bolt 144b abuts against the side wall of the valve top plate 143, the valve slide plate 144 can be moved in the X direction with respect to the valve top plate 143 by rotating the length position of the valve X-direction horizontal fine adjustment bolt 144b, that is, the distance between the valve X-direction side plate 144a and the side wall of the valve top plate 143 is adjusted to perform fine adjustment in the X direction.

Referring to fig. 7, in the valve adjusting bracket 140 according to the first embodiment of the present invention, the horizontal adjusting hole is a circular hole having a diameter larger than that of the sliding plate bolt 145, and the outer diameter of the sliding plate adjusting washer 145a is larger than that of the horizontal adjusting hole. The horizontal adjustment hole has a linkage effect with the adjustment distance of the valve X to the horizontal trim bolt 144 b.

Referring to fig. 8, in order to improve the mounting accuracy of the upstream valve 96 and the downstream valve 97 in the X direction, the Y direction and the Z direction, a valve adjusting bracket 140 provided in a second embodiment of the present invention is improved on the basis of the valve adjusting bracket 140 in the first embodiment, and is characterized in that four valve Z-direction fine adjustment bolts 146 are distributed at the corners of the valve sliding plate 144; two ends of the valve slide plate 144 in the Y direction are provided with valve Y-direction side plates 144c, the valve Y-direction side plates 144c are provided with valve Y-direction horizontal fine adjustment bolts 144d, and opposite ends of screw heads of the valve Y-direction horizontal fine adjustment bolts 144d abut against the side walls of the valve top plate 143. The slide plate bolts 145 are loosened to allow the valve slide plate 144 and the valve top plate 143 to slide relative to each other, the Y-direction distance of the valve slide plate 144 relative to the valve top plate 143 is adjusted by the valve Y-direction horizontal fine adjustment bolts 144d to perform Y-direction fine adjustment of the valve, and the slide plate bolts 145 are tightened after the adjustment to allow the valve slide plate 144 and the valve top plate 143 to be locked relative to each other. The specific adjusting method of Y-direction fine adjustment is as follows: since the opposite ends of the screw heads of the Y-direction horizontal fine adjustment bolts 144d abut against the side walls of the valve top plate 143, the valve slide plate 144 can be moved in the Y direction with respect to the valve top plate 143 by rotating the length position of the Y-direction horizontal fine adjustment bolts 144d, that is, the Y-direction fine adjustment can be performed by adjusting the distance between the valve Y-direction side plate 144c and the side walls of the valve top plate 143. The specific adjustment method of the valve adjusting bracket 140 of the second embodiment in the X direction is the same as that of the valve adjusting bracket 140 of the first embodiment. Referring to fig. 8, the valve plate 147 of the valve adjusting bracket 140 according to the second embodiment of the present invention includes, but is not limited to, an i-shaped steel plate.

Referring to fig. 8, in the valve adjusting bracket 140 according to the second embodiment of the present invention, the valve Z-fine tuning bolt 146 includes a double-headed screw 146a, and an inner nut 146c located on the upper side of the valve sliding plate 144 and an outer nut 146d located on the lower side of the valve sliding plate 144 are disposed on the lower end of the double-headed screw 146 a; the upper end of the double-head screw 146a is provided with a supporting plate 146b and an upper threaded rod thereon, and the upper threaded rod of the double-head screw 146a is in threaded connection with the valve support plate 147. At this time, the connection position of the Z-direction fine adjustment bolt 146 corresponding to the valve stay 147 is a screw hole 147a, and the connection position of the Z-direction fine adjustment bolt 146 corresponding to the valve slide plate 144 is a through hole. Compared with the first embodiment, the Z-direction fine adjustment bolt 146 of the valve in the second embodiment of the invention can adjust the distance between the valve sliding plate 144 and the valve support plate 147 by only adjusting the inner nut 146c and the outer nut 146d which are positioned above and below the valve sliding plate 144, thereby performing Z-direction fine adjustment. Wherein support plate 146b prevents Z-trim bolt 146 from loosening with valve fulcrum 147. In addition, in the Z-direction fine adjustment bolt 146 according to the second embodiment of the present invention, the upper threaded rod located above the support plate 146b is not exposed to the upper plane of the valve seat plate 147, and thus, interference of the external nut 146d at the upper end of the Z-direction fine adjustment bolt 146 with the valve installation position in the first embodiment of the present invention can be avoided. Of course, the connection relationship between the Z-fine tuning bolts 146 and the related components in the first and second embodiments of the present invention can be used interchangeably without interfering with the installation position. The valve adjusting bracket 140 according to the second embodiment of the present invention can finely adjust the valve in X, Y and Z directions, thereby improving the installation accuracy of the valve. And the fine adjustment of the valve in X, Y and Z directions is manually adjusted, so that the valve suitable for the accelerator cavity device is assembled in an ultra-clean room and is small in environmental disturbance.

Referring to fig. 1 to 6, the accelerator cavity device assembling tool 100 according to the embodiment of the present invention may further include a cavity distance controller 190. Wherein the chamber distance controller 190 may be provided on the downstream chamber adjusting bracket 120 and the upstream chamber adjusting bracket 110 at the junction of the adjacent nodal chambers 91 to adjust the distance between the adjacent nodal chambers 91 in the X direction by adjusting the distance between the downstream chamber adjusting bracket 120 and the upstream chamber adjusting bracket 110 at the junction of the adjacent nodal chambers 91. Of course, the chamber distance controller 190 may also be provided between the valve-adjusting bracket 140 of the upstream valve 96 and the upstream chamber-adjusting bracket 110 to adjust the distance between the valve-adjusting bracket 140 and the upstream chamber-adjusting bracket 110 in the X direction, thereby adjusting the distance between the upstream valve 96 and the throttle chamber 91 in the X direction. In addition, the chamber distance controller 190 may also be provided between the downstream chamber adjusting carriage 120 and the monitor adjusting carriage 160 to adjust the distance between the downstream chamber adjusting carriage 120 and the monitor adjusting carriage 160 in the X direction, thereby adjusting the distance between the regulated chamber 91 and the low temperature monitor chamber 98 in the X direction. Wherein the chamber distance controller 190 performs a locking fixation after adjusting the distance, thereby protecting the stable connection between the nodal chamber 91 and the adjacent nodal chamber 91, upstream valve 96 and/or cryogenic monitoring chamber 98. Through the distance adjustment of the cavity distance controller 190, the risk that the bellows 99 at the joint of the accelerator cavity device 90 is damaged due to too long expansion length can be prevented, so that the bellows 99 can be protected.

Referring to fig. 31 to 34, a cavity distance controller 190 according to an embodiment of the present invention includes a first fixture and a second fixture adjustably connected to the first fixture along an X direction.

Referring to fig. 31 to 33, the first jig includes a first jig head 191 having a first jig head groove 191a and a first jig waist 192 having a first jig waist groove 192a, the first jig head 191 and the first jig waist 192 are connected to the universal stay 200 of one of the adjustment brackets by a first fastening member 193 disposed along the X direction, and the first jig waist 192 is provided with a first avoiding groove 192b avoiding the first fastening member 193 along the Y direction.

Referring to fig. 31 and 34, the second fixture includes a second fixture head 194 having a second fixture head slot 194a and a second fixture waist 195 having a second fixture waist slot 195a, the second fixture head 194 and the second fixture waist 195 are connected to the universal support post 200 of another adjusting bracket through a second fastening member 196 arranged along the X direction, and a second avoiding slot 195b arranged along the Y direction and avoiding the second fastening member 196 is arranged on the second fixture waist 195. Wherein the first and second

jig waist grooves

192a and 195a are shaped to match the outer profile of the post tube 202 on the universal brace 200 to which they are attached.

Referring to fig. 31 to 32, the first and

second clamp waists

192 and 195 are adjustably connected along the X direction by a third fastener 197 arranged along the Z direction.

Referring to fig. 31 to 33, the first fastener waist 192 is provided with a first connection hole 192c penetrating through the third fastener 197 in the X direction; the second clip waist 195 is provided with a second coupling hole 195c passing through the third fastening member 197 in the X direction.

Referring to fig. 33, the first clamp waist 192 is provided with a first step surface 192d lower than the upper plane thereof, and the first connection hole 192c is provided on the first step surface 192 d; referring to fig. 34, a second step surface 195d higher than the lower plane of the second fixture waist 195 is disposed on the second fixture waist 195, and the second connection hole 195c is disposed on the second step surface 195 d; referring to fig. 31, after the first step surface 192d and the second step surface 195d are overlapped and connected, the total height along the Z direction is equal to or greater than the height of the first fixture waist 192 or the second fixture waist 195.

Referring to fig. 31 to 34, the first fastening member 193, the second fastening member 196 and the third fastening member 197 according to the embodiment of the present invention are bolts with nuts.

Referring to fig. 1-6 and 35-37, a base 180 of an embodiment of the present invention includes at least a node chamber bottom plate assembly 182, and may further include a valve bottom plate and/or a monitor bottom plate 183. Wherein the valve bottom plate includes an upstream valve bottom plate 181 and a downstream valve bottom plate 184. A floor adjuster 185 may be provided between adjacent bay cavity floor assemblies 182, between the upstream valve floor 181 and the bay cavity floor assembly 182, and between the bay cavity floor assembly 182 and the monitoring floor 183. The upstream valve floor 181, node chamber floor assembly 182, surveillance floor 183, and/or downstream valve floor 184 may be provided with rail lockers 182d for tightening or loosening rail platforms (not shown) located below the respective floors. That is, the rail locker 182d compresses the rail platform when locked, and releases the rail platform when unlocked, so that the respective bottom plates in the base 180 are adjusted in the X direction, respectively or integrally, to improve the mounting accuracy in the X direction.

Referring to fig. 1-6, and 35-37, the cavity bottom plate assembly 182 includes:

an upstream chamber bottom plate 182a provided on the upstream chamber adjusting bracket 110 of the throttle chamber 91; referring to fig. 2 to 3, 5 to 6 and 12, the pillar base 201 of the upstream cavity adjusting bracket 110 may be connected to the upstream cavity base plate 182a by a base bolt 213, the pillar base 201 is provided with a pillar base Y-direction adjusting hole 201a passing through the base bolt 213 and connected to the upstream cavity base plate 182a, and the pillar base Y-direction adjusting hole 201a may be a kidney-shaped hole. The provision of the post chassis Y to the adjustment hole 201a may provide fine adjustment in the Y direction for the upstream cavity adjustment bracket 110 to improve the accuracy of the mounting of the upstream cavity adjustment bracket 110 for mounting and supporting the adjustment cavity.

A downstream chamber floor 182b provided on the downstream chamber adjusting bracket 120 of the joint chamber 91; referring to fig. 2 to 3, 5 to 6 and 12, the pillar base 201 of the downstream cavity adjusting bracket 120 is connected to the downstream cavity base plate 182b by a base plate bolt 213, the pillar base 201 is provided with a pillar base Y-direction adjusting hole 201a which passes through the base plate bolt 213 and is connected to the downstream cavity base plate 182b, and the pillar base Y-direction adjusting hole 201a may be a kidney-shaped hole. The arrangement of the adjusting hole 201a in the Y direction of the pillar chassis can provide fine adjustment in the Y direction for the downstream cavity adjusting bracket 120, so as to improve the mounting accuracy of the downstream cavity adjusting bracket 120 for mounting and supporting the joint cavity.

And a fixing strip 182c connected between the upstream chamber floor 182a and the downstream chamber floor 182 b.

Referring to FIG. 36, the rail lockers 182d on the node chamber floor assembly 182 may be disposed on the upstream chamber floor 182a, the downstream chamber floor 182b, or a combination thereof.

Referring to fig. 1-2, 4-5, and 35, the upstream valve seat 181 may be disposed on the valve trim bracket 140 of the upstream valve 96. Referring to fig. 1, 3, 4, 6, and 37, the downstream valve bottom plate 184 may be disposed on the valve trim bracket 140 of the downstream valve 97. Referring to fig. 1 to 8, the valve base plate 141 of the valve adjusting bracket 140 is connected to a valve base plate by base plate fixing bolts 149, wherein the valve base plate includes an upstream valve base plate 181 and a downstream valve base plate 184. The valve base plate 141 is provided with a valve base plate Y-direction adjusting hole 141a which penetrates through the base plate fixing bolt 149 to be connected with the valve base plate, and the valve base plate Y-direction adjusting hole 141a can be a kidney-shaped hole. The positioning of the valve chassis Y to the adjustment aperture 141a may provide fine adjustment of the valve adjustment bracket 140 in the Y direction to improve the accuracy of the mounting of the upstream valve 96 or the downstream valve 97.

Referring to fig. 35 and 37, the rail locker 182d may be disposed on the valve adjustment bracket 140 of the upstream valve 96 and/or the valve adjustment bracket 140 of the downstream valve 97.

Referring to fig. 1, 3 to 4, 6 and 37, the monitor base 183 is provided on the monitor adjusting bracket 160 of the low temperature monitoring chamber 98. Wherein the monitor base plate 183 is connected to the downstream valve base plate 184 by a fixing strip 182 c. Referring to fig. 1 to 6, 11 and 12, a pillar chassis 201 on the monitoring adjustment bracket 160 is provided with a pillar chassis Y-direction adjustment hole 201a that passes through the chassis bolt 213 and is connected to the monitoring base plate 183, and the pillar chassis Y-direction adjustment hole 201a may be a kidney-shaped hole. The provision of the post chassis Y to the adjustment hole 201a can provide fine adjustment in the Y direction for the monitor adjustment bracket 160 to improve the installation accuracy of the low temperature monitor room.

Referring to fig. 35, 37 and 38, a bottom plate adjuster 185 according to an embodiment of the present invention includes two fixedly disposed clamping seats 185a, a bottom plate adjusting bolt 185b disposed between the two clamping seats 185a, and bottom plate adjusting nuts 185c threaded onto the bottom plate adjusting bolt 185b and distributed on both sides of the clamping seats 185 a. A washer may be disposed between the bottom plate adjusting nut 185c and the chucking seat 185 a. The bottom plate adjusting bolt 185b is a stud bolt, and the clamping seat 185a is provided with a hole or a groove for fixing the bottom plate adjusting bolt 185b, such as a U-shaped clamping groove. Since the two clamping seats 185a can be respectively and fixedly arranged on the upstream valve bottom plate 181 and the upstream chamber bottom plate 182a, and respectively and fixedly arranged on the downstream chamber bottom plate 182b and the monitoring bottom plate 183, the length of the bottom plate adjusting bolt 185b between the two clamping seats 185a is changed by adjusting the position of the bottom plate adjusting nut 185c, so that the distance between the upstream valve bottom plate 181 and the pitch chamber bottom plate assembly 182, and the distance between the pitch chamber bottom plate assembly 182 and the monitoring bottom plate 183 are adjusted in the X direction, the purpose of adjustment in the X direction is achieved, and the mounting accuracy is improved. The above-described construction of the floor adjuster 185 may also be adapted to be used between the cavity floor assembly 182.

Referring to fig. 36 and 39, another bottom plate adjuster 185 according to an embodiment of the present invention includes two fixedly disposed clamping seats 185a, a bottom plate adjusting nut 185c, a first screw 185d, a second screw 185e, and a tightening ring 185 f. The thread directions of the first screw 185d and the second screw 185e are opposite, one end of the first screw 185d is fixed on two sides of one of the clamping seats 185a through two bottom plate adjusting nuts 185c, and the other end of the first screw 185d is in threaded connection with the elastic joint 185 f; one end of the second screw 185e is fixed to both sides of the other clamping seat 185a by two bottom plate adjusting nuts 185c, and the other end of the second screw 185d is threadedly coupled to the elastic link 185 f. Because the two clamping seats 185a can be respectively and fixedly arranged on the upstream cavity bottom plate 182a and the downstream cavity bottom plate 182b, and the thread directions of the first screw 185d and the second screw 185e are opposite, the length of the first screw 185d and the second screw 185e extending out of the elastic joint 185f can be simultaneously adjusted by rotating the elastic joint 185f in the clockwise direction or the counterclockwise direction, so that the distance between the two clamping seats can be changed, the purpose of adjusting in the X direction is achieved, and the mounting precision is improved. In order to facilitate the rotation of the tightening link 185f, an adjusting hole 185g is formed in the circumference of the tightening link 185f, an adjusting rod is detachably connected to the adjusting hole 185g, the adjusting rod can be a threaded rod corresponding to the adjusting hole 185g as an internal threaded hole, or can be an insertion rod corresponding to the adjusting hole 185g as a blind hole or a through hole, and the tightening link 185f can be rotated clockwise or counterclockwise by the adjusting rod. When the distance between the two card holders 185 is adjusted to the maximum value or the minimum value and still cannot satisfy the precision adjustment in the X direction, the distance between the two card holders 185a is changed again by adjusting the position of the bottom plate adjusting nut 185 c. Therefore, the floor conditioner 185 of this structure has a wider range of adjustment space. Further, a floor regulator 185 of this structure is also adapted between the upstream valve floor 181 and the upstream chamber floor 182a and between the downstream chamber floor 182b and the monitor floor 183.

Referring to fig. 1 to 6, 35 to 37 and 40, the rail locker 182d may be locked to a rail platform (not shown) located below the base 180. The rail locker 182d comprises a pressing seat 182d1, a pressing hand 182d2 hinged on the pressing seat 182d1 and a connecting rod 182d3, a pressing rod 182d4 is vertically arranged on the connecting rod 182d3, and the pressing rod 182d4 can be a rubber piece. When the pressing hand 182d2 is pressed down, the pressing rod is vertically pressed on the rail platform to be locked; when the pressing hand 182d2 is lifted, the pressing rod 182d4 is unlocked without contacting the rail platform, and the whole base 180 can move along the X direction of the rail platform, thereby improving the installation accuracy. When the rail locker 182d is disposed on the upstream valve base plate 181, the upstream chamber base plate 182a, the downstream chamber base plate 182b, the monitoring base plate 183, and/or the downstream valve base plate 184, a pressing hole 182e through which the pressing rod 182d4 passes and exposes out of the rail platform may be disposed on the corresponding base plate, so that the pressing rod 182d4 locks or unlocks the rail platform, and the pressing rod 182d4 may extend from the corresponding base plate to lock or unlock the rail platform.

Referring to fig. 1 to 6 and 18, in order to further improve the installation accuracy of the joint chamber, a swivel base plate is connected to a swivel base plate 131 of the rotation angle fine adjustment bracket 130 by a plate bolt 139. An upstream chamber floor 182a, which is coplanar with the turret floor, may be disposed below the upstream chamber adjustment bracket 110, and a downstream chamber floor 182b, which is coplanar with the turret floor, may be disposed below the downstream chamber adjustment bracket 120. Wherein the turret base plate may be provided separately or may be shared with either the upstream chamber base plate 182a or the downstream chamber base plate 182 b. A Y-direction adjusting hole 131a of the swivel base, for example, a waist-shaped hole is formed in the position of the disc body bolt 139 corresponding to the swivel base 131, so as to achieve fine adjustment in the Y direction, thereby improving the installation accuracy of the rotation angle fine adjustment bracket.

The upstream cavity adjusting bracket 110, the downstream cavity adjusting bracket 120, the rotation angle fine-tuning bracket 130, the valve adjusting bracket 140, the coupler locking device 150, the monitoring adjusting bracket 160, the coupler mounting bracket 170, the base 180 and the cavity distance controller 190 of the embodiment of the invention are suitable for assembling the cavity-saving body, the low-temperature monitoring chamber and the valve of the accelerator cavity device in an ultra-clean room, and are small in environmental disturbance.

The accelerator cavity device assembling method of the free electron laser device according to the embodiment of the invention adopts the accelerator cavity device assembling tool 100 of the free electron laser device according to the embodiment of the invention. The method comprises the following steps:

in step 301, the levelness and height of the nodal chamber bodies 91 are adjusted by the upstream chamber adjusting support 110 and the downstream chamber adjusting support 120, so that the axial centers of the plurality of nodal chamber bodies 91 are coaxial. The specific adjustment method is as follows: adjusting one of the upstream chamber adjusting support 110 and the downstream chamber adjusting support 120 with the other support as a reference point; when the downstream chamber adjusting bracket 120 includes the arc-shaped rib 121d, the elevation of the downstream chamber adjusting bracket 120 is used as a reference. The arc-shaped rib 121d can be clamped in the groove of the downstream end 93 of the joint cavity 91 to realize reliable connection between the downstream cavity supporting plate 121 and the downstream end 93 of the joint cavity 91, so that the accuracy of the downstream cavity adjusting bracket 120 as a reference datum is higher.

Step 302, adjusting the rotation angle (i.e. the twist) of each segment cavity 91 through the rotation angle fine tuning support 130, so that the angle of each segment cavity 91 meets the position requirement;

and 303, connecting and assembling the adjacent cavity bodies 91 through the corrugated pipes 99 to form a cavity string.

When the cavity string is assembled, the distance between the downstream cavity bottom plate 184 and the upstream cavity bottom plate 181 of the adjacent cavity body 91 is adjusted in the X direction by the bottom plate adjuster 185 of the base 180 to adjust the distance between the downstream cavity adjusting bracket 120 and the upstream cavity adjusting bracket 110 of the adjacent cavity body 91, thereby adjusting the position of the joint of the adjacent cavity body 91, and then the cavity distance controller 190 is locked and fixed on the downstream cavity adjusting bracket 120 and the upstream cavity adjusting bracket 110 to fix the position of the joint of the adjacent cavity body 91.

304, adjusting the levelness and height of the vacuum tube in the low temperature monitoring chamber 98 by the monitoring and adjusting bracket 160 to adjust the axial center of the vacuum tube to be coaxial with the axial center of the cavity string, so as to assemble the cavity body 91, the vacuum tube and the low temperature monitoring chamber 98 sleeved on the vacuum tube through the corrugated tube 99. At this time, the distance between the monitor base plate 183 and the downstream chamber base plate 182b can be adjusted in the X direction by the base plate adjuster 185 of the base 180 to adjust the distance between the monitor adjusting bracket 160 and the downstream chamber adjusting bracket 120, thereby adjusting the position between the low temperature monitor chamber 98 and the nodal chamber 91, and then locked and fixed to the monitor adjusting bracket 160 and the downstream chamber adjusting bracket 120 by the chamber distance controller 190 to fix the position between the low temperature monitor chamber 98 and the nodal chamber 91. More specifically, the position between the vacuum tube in the cryogenic monitoring chamber 98 and the nodal chamber 91 is fixed.

305, fixedly connecting the upstream valve 96 and the downstream valve 97 through the valve adjusting bracket 140 respectively; the levelness and height of the valve are adjusted by the valve adjusting bracket 140, so that the axial centers of the upstream valve 96 and the downstream valve 97 and the axial center of the cavity string reach the coaxiality, and the assembly of the upstream valve 96 and the cavity string and the assembly of the downstream valve 97 and the vacuum tube and the low-temperature monitoring chamber 98 sleeved on the vacuum tube are carried out by the corrugated tube 99. At this time, the distance between the upstream valve base plate 181 and the upstream chamber base plate 182a can be adjusted in the X direction by the base plate adjuster 185 of the base 180 to adjust the distance between the valve adjusting bracket 140 and the upstream chamber adjusting bracket 110, thereby adjusting the position between the upstream valve 96 and the throttle chamber 91, and then locked and fixed to the valve adjusting bracket 140 and the upstream chamber adjusting bracket 110 by the chamber distance controller 190 to fix the position between the upstream valve 96 and the throttle chamber 91.

The above-mentioned step 304 and step 305 may also be performed before the step 301.

At step 306, the coupler 95 is mounted to the cold end 94 of the junction cavity 91 by the coupler mounting bracket 170 to complete the assembly of the coupler 95.

Step 307, the coupler mounting bracket 170 is removed, and the coupler 95 is locked and fixed to the cold end 94 of the segment cavity 91 by the coupler locking device 150.

The assembling tool provided by the embodiment of the invention can realize the integral installation of the accelerator cavity device and also can realize the partial installation of the accelerator cavity device. The mounting position can be repeatedly adjusted for many times according to the actual working condition.

The present invention is not limited to the above-described embodiments, and various changes and modifications made within the scope of the claims of the present invention are within the scope of the present invention.

Claims

1. The utility model provides a free electron laser device's accelerator cavity device equipment frock which characterized in that includes: an upstream cavity adjusting bracket, a downstream cavity adjusting bracket and a rotary adjusting bracket;

2. The accelerator cavity device assembling tool of a free electron laser device according to claim 1, wherein an arc rib is disposed along the lower half-circumference arc groove matched with the downstream end in the downstream cavity adjusting bracket.

3. The assembly fixture for the accelerator cavity device of the free electron laser device according to claim 1, wherein the through-pillar is provided with a radial locking screw which extends into the pillar tube in a radial direction and is used for locking a lower smooth surface section of the axial adjusting screw.

4. The accelerator cavity device assembly tooling of a free electron laser device of claim 1, further comprising:

5. The accelerator cavity device assembly tooling of a free electron laser device of claim 4, further comprising:

6. The accelerator cavity device assembling tool of a free electron laser device according to claim 5, wherein two valve Z-direction fine tuning bolts are distributed at two ends of the valve slide plate in the Y direction in the valve adjusting bracket;

or in the valve adjusting bracket, four Z-direction fine adjusting bolts of the valve are distributed at the corners of the valve sliding plate; y-direction side plates are arranged at two ends of the valve sliding plate in the Y direction, Y-direction horizontal fine-tuning bolts are arranged on the valve Y-direction side plates, and opposite ends of screw heads of the Y-direction horizontal fine-tuning bolts abut against the side wall of the valve top plate.

7. The accelerator cavity device assembly tooling of a free electron laser device of claim 5, further comprising:

a base, the base comprising:

the section cavity bottom plate assembly comprises:

8. The accelerator cavity device assembly tooling of a free electron laser device of claim 7, wherein the base further comprises a monitoring base plate and a valve base plate, the valve base plate comprises an upstream valve base plate disposed on the upstream cavity support arrangement and a downstream valve base plate disposed on the downstream cavity support arrangement, the monitoring base plate is disposed on the monitoring adjustment support, and the monitoring base plate is connected with the downstream valve base plate through a fixing strip.

9. The accelerator cavity device assembly tooling of a free electron laser device of claim 8,

the upstream cavity adjusting bracket is adjustably arranged on the upstream cavity bottom plate along the Y direction through a bottom plate bolt which passes through a Y-direction adjusting hole of the support chassis arranged on the support chassis;

the downstream cavity adjusting bracket is adjustably arranged on the downstream cavity bottom plate along the Y direction through a bottom plate bolt which passes through a Y-direction adjusting hole of the support chassis arranged on the support chassis;

the monitoring adjusting bracket is adjustably arranged on the monitoring bottom plate along the Y direction through a bottom plate bolt which passes through a Y-direction adjusting hole of the support chassis arranged on the support chassis;

the rotation angle fine tuning support is adjustably arranged on the rotating frame bottom plate along the Y direction through a plate body bolt which penetrates through a Y-direction adjusting hole of the rotating frame bottom plate arranged on the rotating frame bottom plate;

the valve adjusting bracket is adjustably arranged on the upstream valve bottom plate and the downstream valve bottom plate along the Y direction through a bottom plate fixing bolt which penetrates through a Y-direction adjusting hole of the valve bottom plate arranged on the valve bottom plate.

10. The accelerator cavity assembly tooling of a free electron laser device according to claim 8 or 9, wherein a bottom plate adjuster is provided between adjacent said nodal cavity bottom plate assemblies, between said upstream valve bottom plate and nodal cavity bottom plate assembly and/or between said nodal cavity bottom plate assembly and a monitoring bottom plate.

11. The accelerator cavity device assembling tool of a free electron laser device according to claim 10, wherein the base plate adjuster comprises two fixedly disposed clamping seats, a base plate adjusting bolt disposed between the two clamping seats, and base plate adjusting nuts screwed on the base plate adjusting bolt and distributed on two sides of the clamping seats;

or the bottom plate adjuster comprises two clamping seats fixedly arranged, bottom plate adjusting nuts, a first screw rod, a second screw rod and an elastic joint, the thread directions of the first screw rod and the second screw rod are opposite, one end of the first screw rod is fixed on two sides of one of the clamping seats through the two bottom plate adjusting nuts, and the other end of the first screw rod is in threaded connection with the elastic joint; one end of the second screw rod is fixed on two sides of the other clamping seat through the two bottom plate adjusting nuts, and the other end of the second screw rod is in threaded connection with the elastic joint.

12. The accelerator cavity device assembling tool of the free electron laser device according to claim 11, wherein a rail platform for moving in the X direction is disposed below the base, and a rail locker for locking or unlocking the rail platform is disposed on the base; the rail locker comprises a pressing seat, a pressing hand and a connecting rod, wherein the pressing hand and the connecting rod are hinged on the pressing seat, and a pressing rod is vertically arranged on the connecting rod.

13. The accelerator cavity device assembly tooling of a free electron laser device of claim 7, further comprising:

14. The accelerator cavity device assembly tooling of a free electron laser device of claim 13, wherein the cavity distance controller comprises: the first fixture and the second fixture are adjustably connected with the first fixture along the X direction;

15. The accelerator cavity device assembling tool of the free electron laser device according to claim 1 or 13, wherein the accelerator cavity device assembling tool further comprises:

16. The accelerator cavity device assembly tooling of a free electron laser device of claim 15, wherein in the coupler mounting bracket, the height adjustment mechanism comprises a lower adjustment plate disposed on a bracket upright, the lower adjustment plate being connected to an upper adjustment plate by a height adjustment bolt;

and/or in the coupler mounting bracket, the horizontal adjusting mechanism comprises a fixed plate arranged on the height adjusting mechanism through a plate adjusting bolt, and the fixed plate is provided with a sliding plate which moves in the Y direction relative to the fixed plate; the side wall of the fixed plate is provided with a guide side plate, and the guide side plate is in threaded connection in the X direction or abuts against the fixed plate through an X-direction adjusting bolt.

17. The accelerator cavity device assembly tooling of a free electron laser device of claim 16,

in the coupler mounting bracket, the fixed plate is provided with at least two parallel guide rails in the Y direction, and the sliding plate is provided with a sliding groove matched with the guide rails;

and/or in the coupler mounting bracket, the fixed plate is provided with at least two parallel guide wheels in the Y direction, and the sliding plate is provided with a sliding groove matched with the guide wheels.

18. The accelerator cavity device assembly tooling of a free electron laser device of claim 16,

in the coupler mounting bracket, the large flange clamp comprises a lower clamp fixedly connected with the sliding plate and provided with a lower clamping opening, and an upper clamp connected to the lower clamp through a clamp bolt and provided with an upper clamping opening, wherein the upper clamping opening of the upper clamp and the lower clamping opening of the lower clamp are used for fixing the large flange of the coupler;

and/or in the coupler mounting bracket, the small flange clamp comprises a Z-shaped plate arranged on the horizontal adjusting mechanism, the Z-shaped plate is adjustably connected with a small flange supporting plate in the Z direction through a small flange adjusting rod, and a groove for supporting a small flange of the coupler is arranged on the small flange supporting plate.

19. The accelerator cavity device assembly tooling of a free electron laser device of claim 16,

in the coupler mounting bracket, a Y-direction limiting mechanism for limiting the moving position of the sliding plate is arranged on the fixing plate along the Y direction, the Y-direction limiting mechanism comprises a limiting block arranged on the fixing plate, a Y-direction limiting bolt is arranged on the Y direction through the limiting block, and the Y-direction limiting bolt is in threaded connection with or abuts against the sliding plate;

and/or in the coupler installing support, the coupler installing support also comprises a Z-direction limiting mechanism, and the Z-direction limiting mechanism comprises a Z-direction limiting bolt which vertically penetrates through the sliding plate and is in threaded connection with or abuts against the fixing plate.

20. The accelerator cavity device assembling tool for a free electron laser apparatus according to claim 15, wherein the coupler mounting bracket further comprises a lock vertically disposed on a pillar of the bracket, the lock comprises a first lock plate and a second lock plate connected to the first lock plate by a lock plate bolt, and the first lock plate and the second lock plate are respectively provided with a groove for fixing to the pillar.

21. The accelerator cavity device assembling tool of the free electron laser device according to claim 1 or 13, wherein the accelerator cavity device assembling tool further comprises:

22. The accelerator cavity device assembling tool of a free electron laser device according to claim 21, wherein in the coupler locking device, the lower truss is provided with lower waist-shaped holes respectively penetrating through the first vertical bolt and the second vertical bolt, the end plate of the upper truss is provided with upper waist-shaped holes penetrating through the transverse bolt, and the lower waist-shaped holes and the upper waist-shaped holes are distributed along the X direction.

23. An accelerator cavity device assembling method of a free electron laser device, which is characterized in that an accelerator cavity device assembling tool of the free electron laser device according to claim 1, 15 or 21 is adopted;

24. The method of assembling an accelerator cavity assembly of a free electron laser device as claimed in claim 23, wherein the adjusting bracket is used to adjust the levelness and height of the vacuum tube in the low temperature monitoring chamber to adjust the axial center of the vacuum tube to be coaxial with the axial center of the cavity string, so as to assemble the cavity string with the vacuum tube and the low temperature monitoring chamber sleeved on the vacuum tube through the bellows;

the upstream valve and the downstream valve are fixedly connected through the valve adjusting support respectively, and the levelness and the height of the valve are adjusted through the valve adjusting support, so that the axial centers of the upstream valve and the downstream valve and the axial center of the cavity string reach the coaxiality, the upstream valve and the cavity string are assembled through the corrugated pipe, and the downstream valve and the vacuum pipe and the low-temperature monitoring chamber sleeved on the vacuum pipe are assembled.

25. The method of assembling an accelerator cavity assembly of a free electron laser device of claim 23, wherein the coupler is mounted to the cold end of the cavity by a coupler mounting bracket to complete the assembly of the coupler;

and detaching the coupler mounting bracket, and locking and fixing the coupler on the cold end of the section cavity through the coupler locking device.