CN220400410U

CN220400410U - Insulating piece cutting device in water-cooled magnet coil

Info

Publication number: CN220400410U
Application number: CN202322005391.3U
Authority: CN
Inventors: 李见; 房震; 张勇; 王忠建; 苏剑; 周游; 钱新星
Original assignee: Hefei Institutes of Physical Science of CAS
Current assignee: Hefei Institutes of Physical Science of CAS
Priority date: 2022-08-23
Filing date: 2023-07-26
Publication date: 2024-01-26
Anticipated expiration: 2033-07-26

Abstract

The utility model discloses an insulating sheet cutting device in a water-cooled magnet coil, which comprises a base, a clamping assembly, a fixing rod, a cutting sheet cutter and a lifting assembly, wherein the clamping assembly is connected with the base, the clamping assembly is internally provided with an insulating sheet clamping part and a cutter cutting cavity which vertically penetrates through the insulating sheet clamping part, a plurality of fixing rods are connected with the clamping assembly and are positioned at two sides of the cutter cutting cavity, the fixing rod penetrates through the insulating sheet clamping part, the liftable cutting sheet cutter is connected with the lifting assembly, and the projection of the cutting sheet cutter and the cutter cutting cavity on a horizontal plane are overlapped. The utility model has the beneficial effects that: the insulating sheet of the whole circular ring is equally divided, the precision of the insulating sheet is ensured, the condition that the coil is burnt due to short-circuit heating is avoided, and the misjudgment times of the state of the magnet are reduced.

Description

Insulating piece cutting device in water-cooled magnet coil

Technical Field

The utility model relates to the technical field of water-cooled magnets, in particular to a cutting device for insulating sheets.

Background

The steady-state strong magnetic field water-cooled magnet is a device which is formed by connecting a plurality of coils in series or in parallel and used for generating a super-strong magnet. Each coil of the water-cooled magnet device is formed by spirally stacking thousands of hollow circular ring bit pieces with the thickness of millimeter and fan-shaped insulating pieces with the thickness of 0.1mm to 0.2mm in corresponding specification. The insulating sheet of the complete circular ring and the bit sheet are punched by a die, and the insulating sheet of the complete circular ring is actually assembled, but is not the insulating sheet of the complete circular ring, but is the insulating sheet with a certain fan-shaped angle.

The insulating sheet in the water-cooling magnetic body has high precision requirement on the insulating sheet, the precision requirement is +/-0.05 mm, the precision is not reached, the coil biter sheet is locally short-circuited, and the coil is heated or even burnt. The insulating sheet is used for ensuring the insulation between the upper and lower bits, and if the insulating sheet is smaller than the theoretical size, the insulation between the upper and lower bits can conduct electricity, so that heat exceeding the cooling water cooling capacity can be locally generated. If the insulating sheet is larger than the theoretical size, the number of turns of the magnet is affected, so that the measured parameter of the magnet deviates from the theoretical value, and misjudgment of the state of the magnet is formed.

The insulating sheet, as the name suggests, has high electrical insulation properties and is an organic polymer material. The highest precision of the current wire cutting machining can reach 0.001mm, but the wire cutting cannot be adopted to cut the workpiece due to the fact that the property of the material cannot be conductive, because the operation of a machining system of a wire cutting machine tool is subjected to feedback control of an electric signal, if the machined material is a non-conductor, the control system cannot receive a signal of 'contact' operation of the machined material, then a main shaft head can always move downwards, even if the main shaft head touches a workpiece, the main shaft head is always stopped, namely 'head planting', and an electrode and the machine tool are damaged as a result. Also, if the material being processed is a nonconductor, the workpiece will not stop in contact with the molybdenum wire until the molybdenum wire breaks.

At present, two positioning blocks are generally used for positioning the insulating sheet, and a blade is used for cutting through manual measurement, so that a larger error exists in the mode, and the cutting device for the Bitter water-cooled magnet cannot meet the precision requirement.

The information disclosed in this background section is only for enhancement of understanding of the general background of the utility model and should not be taken as an acknowledgement or any form of suggestion that this information has been made as prior art that is well known to a person of ordinary skill in the art.

Disclosure of Invention

The technical problems to be solved by the utility model are as follows: how to solve the problem that the cutting mode of the current water-cooled magnet insulating sheet can not meet the precision requirement.

The utility model solves the technical problems by the following technical means:

the utility model provides an insulating piece cuts piece device in water-cooling magnet coil, includes base, clamping assembly, dead lever, cuts piece cutter, lifting unit, clamping assembly connects the base, have insulating piece clamping part in the clamping assembly and cut into the chamber with insulating piece clamping part vertically penetrating's cutter, a plurality of the dead lever is connected clamping assembly and be located the both sides that the cutter cut into the chamber, the dead lever runs through insulating piece clamping part, can go up and down cut the piece cutter and connect lifting unit, cut the piece cutter with the cutter cuts into the projection coincidence of chamber on the horizontal plane.

When the insulating sheet cutting device is used, the insulating sheet is clamped at the insulating sheet clamping part, the fixing rod is inserted into the fixing rod hole on the insulating sheet, the position of the insulating sheet is fixed, the lifting assembly controls the sheet cutting tool to move downwards until the cutting tool cuts into the cavity to cut the insulating sheet; after completion, unclamp the clamping assembly, the insulating piece is rotatory certain angle, fixes a position through the dead lever again. According to the utility model, only the fixed rod position is unchanged, the cutting position of the cutter is unchanged, and the fixed rod position is used as a positioning basis, so that the consistency of each cutting is realized, the insulating sheets of the whole circular ring are equally divided, and the precision of the insulating sheets is ensured.

Preferably, the top surface of the base comprises a cutter protection groove, and the cutter protection groove is in projection coincidence with the cutter cutting cavity on a horizontal plane.

The cutter protection groove is a buffer space after the cutting blade cutter descends to cut off the insulating sheet, so that the cutting edge of the cutting blade cutter can be prevented from touching the clamping assembly, and the possibility of damaging the cutting edge is reduced.

Preferably, the top surface of the base comprises a plurality of first positioning pins, the plurality of first positioning pins are vertically connected with the top surface of the base, and the clamping assembly comprises first positioning holes corresponding to the first positioning pins.

The first locating pin ensures the unification of the positions of the base and the clamping component, and also keeps the cutter protection groove to always correspond to the cutter cutting cavity.

Preferably, the clamping assembly comprises a fixing plate and a clamping plate, wherein the fixing plate is fixedly connected with the base, and the clamping plate is detachably connected with the fixing plate.

Preferably, the fixing plate is connected with the base through a plurality of bolts, the top surface of the fixing plate further comprises a plurality of second positioning pins, and the clamping plate comprises a plurality of second positioning holes corresponding to the second positioning pins.

Preferably, the fixing plate and the clamping plate each include a plurality of fixing rod holes corresponding to the fixing rods.

The bottom surface of the fixed plate and the top surface of the clamping plate, namely an insulating sheet clamping part for clamping the insulating sheet, are kept fixed in position through a second locating pin; the insulating piece is carried out its centre gripping through fixed plate and grip block on the one hand, and on the other hand is connected through the dead lever hole on dead lever and the insulating piece, guarantees the uniformity of position for the cutting position of cutter is located the predetermined position between two dead lever holes all the time, ensures cutting accuracy, need not to measure, improves cutting speed.

Preferably, the lifting assembly comprises a cutter bracket, a cross beam and a driving piece, wherein the bottom of the cutter bracket is connected with the base, the cutter bracket comprises a sliding groove arranged in the height direction, one end of the cross beam comprises a sliding block, the sliding block is in sliding connection with the sliding groove, and the driving piece is connected with the cross beam.

Preferably, the bottom of the cross beam comprises a cutter mounting groove and a cutter locking hole, the cutting blade cutter is connected with the cutter mounting groove, and the locking bolt penetrates through the cutter locking hole to be connected with the cutting blade cutter.

Preferably, the driving member comprises a motor, a screw and a screw nut, the motor is connected to the cutter support, the screw is connected to the motor, the screw nut is in threaded connection with the screw, the screw nut is connected to one end of the cross beam, and the cutter support is provided with an avoidance groove for accommodating the screw nut.

The screw rod and the screw rod nut realize that the rotary motion of the motor is converted into the lifting motion of the cross beam, the screw thread realizes that the process precision is high in controllable precision, self-locking can be realized, and the stability is strong.

Preferably, the driving member is a cylinder or a hydraulic cylinder, and the telescopic end of the cylinder or the hydraulic cylinder is connected with the cross beam.

The driving piece can realize stable up-and-down operation of the slicing cutter.

The utility model has the advantages that:

(1) When the insulating sheet cutting device is used, the insulating sheet is clamped at the insulating sheet clamping part, the fixing rod is inserted into the fixing rod hole on the insulating sheet, the position of the insulating sheet is fixed, the lifting assembly controls the sheet cutting tool to move downwards until the cutting tool cuts into the cavity to cut the insulating sheet; after completion, unclamp the clamping assembly, the insulating piece is rotatory certain angle, fixes a position through the dead lever again. According to the embodiment, only the fixed rod position is required to be unchanged, the position of the cutting cavity of the cutter is required to be unchanged, the fixed rod position is taken as a positioning basis, then the consistency of cutting every time is realized, the insulating sheet of the whole circular ring is equally divided, the precision of the insulating sheet is ensured, the condition that the coil is burnt due to short-circuit heating is avoided, and the misjudgment times of the magnet state are reduced.

(2) The cutter protection groove is a buffer space after the insulating sheet is cut off by the sheet cutting cutter in a descending way, so that the cutting edge of the sheet cutting cutter can be prevented from touching the clamping assembly, and the possibility of damaging the cutting edge is reduced;

(3) The first positioning pin ensures the unification of the positions of the base and the clamping component, and also keeps the cutter protection groove to always correspond to the cutter cutting cavity;

(4) The bottom surface of the fixed plate and the top surface of the clamping plate, namely an insulating sheet clamping part for clamping the insulating sheet, are kept fixed in position through a second locating pin; the insulating sheet is clamped by the fixing plate and the clamping plate on one hand, and is connected with the fixing rod holes on the insulating sheet by the fixing rods on the other hand, so that the position uniformity is ensured, the cutting position of the cutter is always positioned at a preset position between the two fixing rod holes, the cutting precision is ensured, the measurement is not needed, and the cutting speed is improved;

(5) The screw rod and the screw rod nut realize that the rotary motion of the motor is converted into the lifting motion of the cross beam, the screw thread realizes that the process precision is high in controllable precision, self-locking can be realized, and the stability is strong.

Drawings

FIG. 1 is a schematic diagram of an apparatus for cutting insulating sheets in a water-cooled magnet coil according to an embodiment of the present utility model;

FIG. 2 is an exploded view of an apparatus for cutting insulating sheets in a water-cooled magnet coil according to an embodiment of the present utility model;

FIG. 3 is an exploded view of an apparatus for cutting insulating sheets in a water-cooled magnet coil according to an embodiment of the present utility model;

FIG. 4 is a schematic diagram of a device for cutting insulating sheets in a water-cooled magnet coil according to an embodiment of the present utility model;

FIG. 5 is a schematic view of an entire insulating sheet according to an embodiment of the present utility model;

FIG. 6 is a schematic view of a fan-shaped insulating sheet according to an embodiment of the present utility model;

reference numerals in the drawings:

1. a base; 11. a cutter protection groove; 12. a first positioning pin;

2. a clamping assembly; 21. a fixing plate; 22. a clamping plate; 23. a second positioning pin;

3. a fixed rod; 4. a cutting blade; 5. a lifting assembly; 51. a cutter holder; 52. a cross beam; 53. a driving member; 6. an insulating sheet;

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions in the embodiments of the present utility model will be clearly and completely described in the following in conjunction with the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Embodiment one:

as shown in fig. 1 and 2, the insulating sheet cutting device in the water-cooled magnet coil comprises a base 1, a clamping component 2, a fixed rod 3, a cutting cutter 4 and a lifting component 5, wherein the clamping component 2 is connected with the base 1, the clamping component 2 is internally provided with an insulating sheet clamping part and a cutter cutting cavity which vertically penetrates through the insulating sheet clamping part, the fixing rods 3 are connected with the clamping assembly 2 and located on two sides of the cutter cut-in cavity, the fixing rods 3 penetrate through the insulating sheet clamping parts, the lifting assembly 5 is connected with the cutting cutter 4 capable of lifting, and the cutting cutter 4 coincides with projection of the cutter cut-in cavity on a horizontal plane.

Specifically, as shown in fig. 2, the base 1 is a rectangular plate, and the top surface of the base includes a cutter protecting groove 11, where the cutter protecting groove 11 and the cutter cutting cavity are projected and overlapped on a horizontal plane. The width of the cutter protecting slot 11 is generally larger than the width of the cutter cutting cavity, and the length is also slightly larger than the length of the cutter cutting cavity; the cutter protection groove 11 is a buffer space after the cutting cutter 4 descends to cut off the insulating sheet 6, so that the cutting edge of the cutting cutter 4 can be prevented from touching the clamping assembly 2, and the possibility of damaging the cutting edge is reduced. The top surface of the base 1 includes a plurality of first locating pins 12, a plurality of first locating pins 12 are vertically connected with the top surface of the base 1, in this embodiment, the number of the first locating pins 12 is four, the four first locating pins are respectively located outside four corners of the cutter protection groove 11, and the clamping assembly 2 includes first locating holes corresponding to the first locating pins 12. The first positioning pin 12 ensures the unification of the positions of the base 1 and the clamping assembly 2, and also keeps the cutter protection groove 11 corresponding to the cutter cut-in cavity all the time.

The base 1 is also provided with a plurality of threaded holes, the threaded holes on two sides of the cutter protection groove 11 are used for connecting the clamping assembly 2 with the base 1 through fixing bolts, and the threaded holes on one side of the cutter protection groove 11 are used for connecting the bottom of the lifting assembly 5 with the base 1 through fixing bolts.

As shown in fig. 1, the clamping assembly 2 includes a fixing plate 21 and a clamping plate 22, the fixing plate 21 is fixedly connected with the base 1 through a first positioning pin 12 and a countersunk screw or countersunk bolt, the countersunk screw or countersunk bolt does not interfere with the clamping effect on the insulating sheet 6, and the clamping plate 22 is detachably connected with the fixing plate 21; specifically, the top surface of the fixing plate 21 further includes a plurality of second positioning pins 23, the clamping plate 22 includes a plurality of second positioning holes corresponding to the second positioning pins 23, and the clamping plate 22 is connected with the fixing plate 21 through the second positioning pins 23, so that the clamping plate 22 can be fixed, and the clamping plate 22 can be easily removed.

In the present embodiment, the insulating sheet holding portion is the bottom surface of the fixing plate 21 and the top surface of the holding plate 22, and when the insulating sheet 6 is held, the fixing plate 21 and the holding plate 22 are located on the bottom surface and the top surface of the insulating sheet 6. The two are kept fixed in position by the second positioning pin 23;

as shown in fig. 1, the fixing plate 21 and the clamping plate 22 each include a plurality of fixing rod holes corresponding to the fixing rods 3. The fixing rod 3 passes through the fixing rod hole on the insulating sheet 6 when the insulating sheet 6 is clamped by the fixing plate 21 and the clamping plate 22, so as to realize the positioning of the position of the insulating sheet 6. The insulating sheet 6 is clamped through the fixing plate 21 and the clamping plate 22 on one hand, and on the other hand is connected with the fixing rod holes on the insulating sheet 6 through the fixing rods 3, so that the position uniformity is guaranteed, the cutting position of the cutting blade cutter 4 is always located at a preset position between the two fixing rod holes, the cutting precision is guaranteed, the measurement is not needed, and the cutting speed is improved.

In this embodiment, two fixing rods 3 are respectively located at two sides of the cutting cavity of the cutter, the fixing rods 3 can be fixedly connected to the base 1, and the dimensional position relationship between the fixing rods 3 is consistent with the dimensional position relationship of the fixing rod holes on the positioning plate 21 and the clamping plate 22.

The insulating sheet 6 is of a circular flat sheet structure, is punched through a die to form a cooling water hole for deionized cooling water to pass through, and is used for fastening the insulating sheet 6 and the bit sheet together through the fixing rod 3 after being overlapped. The insulating sheet 6 ensures the insulation between the upper and lower Bitter sheets, and the Bitter sheets and the insulating sheet 6 form a spiral ascending current channel through regular staggered stacking to form the water-cooled magnet coil.

The lifting assembly 5 comprises a cutter support 51, a cross beam 52 and a driving piece 53, the bottom of the cutter support 51 is connected with the base 1, the cutter support 51 is located on one side of the clamping assembly 2, the cutter support 51 comprises a sliding groove arranged in the height direction, one end of the cross beam 52 comprises a sliding block, the cross section of the sliding groove and the sliding block can be of a T-shaped structure, a dovetail-shaped structure and the like, the sliding block is in sliding connection with the sliding groove, the driving piece 53 is connected with the cross beam 52, and the driving piece 53 provides up-down cutting force for the cross beam 52.

The bottom of the cross beam 52 comprises a cutter mounting groove and a cutter locking hole, the cutting blade cutter 4 is connected in the cutter mounting groove, the locking bolt penetrates through the cutter locking hole to be connected with the cutting blade cutter 4, the locking bolt can be abutted against one side surface of the cutting blade cutter 4, the cutting blade cutter 4 can also be provided with a penetrating hole corresponding to the cutter locking hole, and the locking bolt penetrates through the cutter locking hole and the penetrating hole.

In this embodiment, a structure of a driving member 53 is provided, where the driving member 53 includes a motor, a screw, and a screw nut, the motor is connected to the top of the cutter holder 51 through a mounting plate or a mounting base 1, the screw is connected to the motor, the screw nut is screwed to the screw, the screw nut is connected to the slider of the cross beam 52, the cutter holder 51 has a recess for accommodating the screw nut, that is, the cutter holder 51 has a long hole in the height direction, and the screw nut can slide in the long hole. The motor drives the screw rod to rotate, the screw rod nut is limited by the cutter bracket 51, the rotary motion is converted into the lifting motion of the cross beam 52, the process accuracy is high in controllable accuracy, self-locking can be achieved, and the stability is high.

When the embodiment is used, the following steps are adopted:

the clamping plate 22 is moved out of the fixing plate 21, the whole annular insulating sheet 6 is placed on the fixing plate 21, the fixing rod holes on the insulating sheet correspond to the fixing rod holes on the fixing plate 21, the fixing rod 3 is inserted into the fixing plate 21 and the insulating sheet, the insulating sheet 6 is positioned, the clamping plate 22 is placed on the fixing plate 21 along the fixing rod 3, and the insulating sheet 6 is pressed by the gravity of the clamping plate 22, so that the insulating sheet 6 is fixed. The motor acts to control the sheet cutting tool 4 to descend, and the insulating sheet 6 is cut along the cutting tool cutting into the cavity; after the completion, the clamping plate 22 is moved out, the insulating sheet 6 is rotated by a certain angle (the fixing rod 3 can be moved out at the same time of the clamping plate 22, after the insulating sheet 6 is rotated, the insulating sheet 6 is inserted into two sides of the next position to be cut off, or the insulating sheet 6 can be taken down to rotate by a certain angle and then sleeved along the fixing edge 3), and the insulating sheet 6 is positioned through the fixing rod 3 again to cut next time.

As shown in fig. 5 and 6, the whole insulating sheet 6 can be cut into a plurality of equal-divided fan-shaped insulating sheets, the specification of each fan-shaped insulating sheet is consistent, the precision can be ensured to be +/-0.05 mm, and the central angle of the fan-shaped insulating sheet can have various specifications including 30 degrees, 45 degrees, 60 degrees and the like.

In this embodiment, only the position of the fixing rod 3 is required to be unchanged, the position of the cutting cavity of the cutter is required to be unchanged, and the fixing rod 3 is used as a positioning basis, so that the consistency of each cutting is realized, the insulating sheet 6 of the whole circular ring is equally divided, and the precision of the insulating sheet 6 is ensured.

Embodiment two:

the present embodiment is different from the first embodiment in that: the driving member 53 is a cylinder or a hydraulic cylinder, and the telescopic end of the cylinder or the hydraulic cylinder is connected with the cross beam 52.

The cylinder is adopted in the embodiment, and a cylinder mounting plate is arranged above the cutter support 51, and can be fixed with the top end of the cutter support 51, or can be fixed in other places in other modes, and is fixed.

The bottom surface of cylinder mounting panel is connected two cylinders, and the flexible end and the both ends of crossbeam 52 of two cylinders are connected, when needs cut piece cutter 4 down, operate two cylinders and move down simultaneously can.

The cylinder can also be replaced by a hydraulic cylinder or an electric cylinder.

In the present application, three driving members 53 capable of driving the cutting blade cutter 4 to move downwards are provided, and in the actual use process, only the driving members 53 can realize stable up-down operation of the cutting blade cutter 4, and the present application is not limited to the three driving members.

The above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims

1. The utility model provides an insulating piece cuts piece device in water-cooling magnet coil, its characterized in that includes base, clamping assembly, dead lever, cuts piece cutter, lifting unit, clamping assembly connects the base, have insulating piece clamping part in the clamping assembly and with insulating piece clamping part vertically run through the cutter cut into the chamber, a plurality of the dead lever is connected clamping assembly and be located the both sides that the cutter cut into the chamber, the dead lever runs through insulating piece clamping part, the cutting piece cutter that can go up and down is connected lifting unit, cutting piece cutter with the cutter cuts into the projection coincidence of chamber on the horizontal plane.

2. The water cooled magnet coil insulation sheet cutting device of claim 1, wherein the top surface of the base includes a knife protection slot that coincides with the projection of the knife cut-in cavity onto a horizontal plane.

3. The water cooled magnet coil insulation sheet cutting device of claim 1, wherein the top surface of the base includes a plurality of first locating pins vertically connected to the top surface of the base, and the clamping assembly includes first locating holes corresponding to the first locating pins.

4. The water-cooled magnet coil inner insulation sheet cutting device of claim 1, wherein the clamping assembly comprises a fixed plate and a clamping plate, the fixed plate is fixedly connected with the base, and the clamping plate is detachably connected with the fixed plate.

5. The water-cooled magnet coil inner insulation sheet cutting device according to claim 4, wherein the fixing plate is connected with the base through a plurality of bolts, the top surface of the fixing plate further comprises a plurality of second positioning pins, and the clamping plate comprises a plurality of second positioning holes corresponding to the second positioning pins.

6. The apparatus of claim 4, wherein the fixing plate and the clamping plate each comprise a plurality of fixing rod holes corresponding to the fixing rods.

7. The water-cooled magnet coil inner insulation sheet cutting device according to claim 1, wherein the lifting assembly comprises a cutter bracket, a cross beam and a driving piece, the bottom of the cutter bracket is connected with the base, the cutter bracket comprises a sliding groove arranged in the height direction, one end of the cross beam comprises a sliding block, the sliding block is in sliding connection with the sliding groove, and the driving piece is connected with the cross beam.

8. The water-cooled magnet coil inner insulation sheet cutting device according to claim 7, wherein the bottom of the cross beam comprises a cutter mounting groove and a cutter locking hole, the cutting cutter is connected with the cutter mounting groove, and a locking bolt passes through the cutter locking hole to be connected with the cutting cutter.

9. The water-cooled magnet coil inner insulation sheet cutting device of claim 7, wherein the driving member comprises a motor, a screw, and a screw nut, the motor is connected to the cutter holder, the screw is connected to the motor, the screw nut is in threaded connection with the screw, the screw nut is connected to one end of the cross beam, and the cutter holder has a relief groove for accommodating the screw nut.

10. The device for cutting insulating sheets in a water-cooled magnet coil according to claim 7, wherein the driving member is a cylinder or a hydraulic cylinder, and the telescopic end of the cylinder or the hydraulic cylinder is connected with the cross beam.