CN114799870A

CN114799870A - Production line of fire sprinkler head

Info

Publication number: CN114799870A
Application number: CN202210538530.6A
Authority: CN
Inventors: 董其缘; 尤晓萍; 梁淯贤; 张俊杰; 王露伟; 尤竞琨; 蔡育恒
Original assignee: Xiamen University Tan Kah Kee College
Current assignee: Xiamen University Tan Kah Kee College
Priority date: 2022-05-18
Filing date: 2022-05-18
Publication date: 2022-07-29
Anticipated expiration: 2042-05-18
Also published as: CN114799870B

Abstract

The invention provides a production line of a fire-fighting spray header, which comprises a control system and an operating system connected with the control system, wherein the operating system comprises a transmission mechanism for transmitting a spray header valve body, and a valve plate feeding mechanism, a dispensing mechanism and an assembling mechanism which are sequentially arranged along the transmission direction of the transmission mechanism; then entering a dispensing mechanism, and dispensing through the dispensing mechanism; then entering an assembling mechanism; assembling and locking the glass beads by an assembling mechanism so as to complete the mechanical assembly of the spray header; the problems of long assembling time and low qualified rate during manual assembly are avoided.

Description

Production line of fire sprinkler head

Technical Field

The invention relates to a production and preparation process of a fire-fighting spray header, in particular to a production line of the fire-fighting spray header.

Background

The fire-fighting spray header is a terminal fire-fighting part of a full-automatic sprinkling fire-extinguishing system, and is almost manually finished in the assembly process of the fire-fighting spray header at the present stage, so that the working process is complicated, and time and labor are wasted; meanwhile, during assembly, the valve block is required to be installed into the valve body firstly, then the glass beads are installed into the valve body, and then screw fixation is carried out. For this reason, it is necessary to design a mechanized assembly line to replace the manual assembly.

Disclosure of Invention

Therefore, the invention provides a production line of the fire-fighting spray header, which can realize the mechanical assembly of the fire-fighting spray header.

In order to achieve the purpose, the technical scheme provided by the invention is as follows:

a production line of a fire-fighting spray header comprises a control system and an operating system connected with the control system, wherein the operating system comprises a transmission mechanism for transmitting a spray header valve body, and a valve plate feeding mechanism, a dispensing mechanism and an assembling mechanism which are sequentially arranged along the transmission direction of the transmission mechanism, wherein the valve plate feeding mechanism is used for connecting a valve plate supply device so as to transfer a valve plate to the spray header valve body on the transmission mechanism; the assembling mechanism comprises a screw assembling component and a glass bead feeding component, the screw assembling component comprises a first lifting driver, a screw assembling machine and a screw guide block, the screw guide block is provided with a vertical through hole and an inclined guide hole communicated with the vertical through hole, the first lifting driver is connected with the screw assembling machine, the rotating shaft of the screw assembling machine penetrates through the vertical through hole of the screw guide block, the inclined guide hole is used for connecting a screw feeding device, the glass bead feeding component comprises a clamping seat and an ejection pipe, the ejection pipe is used for connecting a glass bead feeding device, the tail end of the ejection pipe extends to the position below the screw guide block, and the clamping seat corresponds to the tail end of the ejection pipe and is used for clamping glass beads ejected by the ejection pipe.

Further, the conveying mechanism comprises a linear chute, a feed back conveying belt, a front end propelling device, a front end switching device and a rear end switching device, the linear chute is used for conveying the spray header tool loaded with the spray header valve body, and the valve plate feeding mechanism, the dispensing mechanism and the assembling mechanism are sequentially arranged along the conveying direction of the linear chute; the rear end of the linear sliding chute is communicated with the front end of the return conveying belt through a first transition channel, and the rear end of the return conveying belt is communicated with the front end of the linear sliding chute through a second transition channel; the front end propelling device corresponds to the front end of the linear sliding chute so as to push the spray head tool into the linear sliding chute from the front end of the linear sliding chute, and the rear end switching device is arranged on the first transition channel so as to transfer the spray head tool output from the rear end of the linear sliding chute to the front end of the material returning conveying belt; the front end switching device is arranged on the second transition channel so as to transfer the spray header tool output from the rear end of the return conveying belt to the front end of the linear sliding groove.

Furthermore, the transmission mechanism further comprises a positioning device, and the positioning device is arranged at the side end of the linear sliding groove to position the spray header tool in the linear sliding groove.

Furthermore, the operation system further comprises a feeding channel and a valve body feeding mechanism, wherein the valve body feeding mechanism is located at the front end of the valve plate feeding mechanism and is also located between the feeding channel and the transmission mechanism so as to transfer the spray head valve body on the feeding channel to a tool on the transmission mechanism.

Furthermore, the valve body feeding mechanism comprises a mounting seat, a rotary driver, a swinging plate, a vertical connecting plate, a transverse connecting plate and a grabbing assembly, wherein the mounting seat is provided with an inverted U-shaped limiting slotted hole and a horizontal guide rail which is transversely arranged, the rotary driver is fixed on the mounting seat, the vertical connecting plate is slidably assembled on the horizontal guide rail, the vertical connecting plate is provided with a vertical guide rail, and the transverse connecting plate is slidably assembled on the vertical guide rail; one end of the swinging plate is connected to a rotating shaft of the rotary driver, the other end of the swinging plate is provided with a long groove hole, the transverse connecting plate is provided with a limiting pin shaft, and the limiting pin shaft penetrates through the long groove hole of the swinging plate and the limiting groove hole of the mounting seat; the grabbing component is assembled on the transverse connecting plate.

Furthermore, the valve plate feeding mechanism comprises a mounting seat, a rotary driver, a swinging plate, a vertical connecting plate, a transverse connecting plate and a grabbing assembly, wherein the mounting seat is provided with an inverted U-shaped limiting slotted hole and a horizontal guide rail which is transversely arranged, the rotary driver is fixed on the mounting seat, the vertical connecting plate is slidably assembled on the horizontal guide rail, the vertical connecting plate is provided with a vertical guide rail, and the transverse connecting plate is slidably assembled on the vertical guide rail; one end of the swinging plate is connected to a rotating shaft of the rotary driver, the other end of the swinging plate is provided with a long groove hole, the transverse connecting plate is provided with a limiting pin shaft, and the limiting pin shaft penetrates through the long groove hole of the swinging plate and the limiting groove hole of the mounting seat; the grabbing component is assembled on the transverse connecting plate.

Furthermore, glass pearl material loading subassembly still includes a plurality of switching device, and a plurality of switching device set gradually along the length direction of launching the pipe.

Furthermore, the clamping seat comprises a first part and a second part which are oppositely arranged, the first part comprises a first translation driver and a first clamping block, the first translation driver is connected with the first clamping block so as to drive the first clamping block to be close to or far away from the shower head valve body to be processed, and the first clamping block is provided with an accommodating notch; the second part comprises a second translation driver and a second clamping block, and the second translation driver is connected with the second clamping block so as to drive the second clamping block to be close to or far away from the shower head valve body to be processed.

Further, the point gum machine constructs including second lift driver and point gum machine, second lift driver is fixed in on the mounting bracket, the flexible actuating lever of second lift driver is connected the point gum machine is in order to drive the point gum machine and go up and down.

The device further comprises a pressure measuring mechanism and a boxing mechanism, wherein a first carrying mechanism is arranged between the pressure measuring mechanism and the tail end of the transmission mechanism (specifically a linear sliding chute); and a second carrying mechanism is arranged between the pressure measuring mechanism and the boxing mechanism.

The pressure measuring mechanism includes: the hydraulic self-locking device comprises a fixed bottom plate, a plurality of mechanical claw pairs and a plurality of opening and closing driving mechanisms, wherein a plurality of positioning tables are distributed on the fixed bottom plate in an array manner, installation through grooves are respectively formed in two sides of each positioning table, and a hydraulic self-locking mechanism is arranged on the fixed bottom plate corresponding to the positioning tables; the mechanical claw pairs are arranged on the fixed bottom plate in a penetrating manner, can be fixed on the fixed bottom plate in an opening and closing manner, and are symmetrically arranged on two sides of the positioning table, and two sides of each mechanical claw pair are respectively provided with a tension spring which is connected with the fixed bottom plate or fixedly connected with the adjacent mechanical claw pair; the opening and closing driving mechanisms are arranged between the mechanical claw pairs at the lower part of the fixed bottom plate.

Through the technical scheme provided by the invention, the method has the following beneficial effects:

during operation, the spray header valve body is transmitted by the transmission mechanism, and the valve plate feeding mechanism firstly transfers the valve plate to the spray header valve body on the transmission mechanism; then entering a dispensing mechanism, and dispensing through the dispensing mechanism; then entering an assembling mechanism; assembling and locking the glass beads by an assembling mechanism so as to complete the mechanical assembly of the spray header; the problems of long assembling time and low qualified rate during manual assembly are avoided.

Meanwhile, when assembling the glass beads, the ejection tube ejects the glass beads, and the clamping seat clamps and positions the glass beads ejected by the ejection tube to realize pre-assembly; then, the screw enters the vertical through hole through the inclined guide hole of the screw guide block and is output from the vertical through hole, so that the pre-assembly of the screw is realized; finally, the first lifting driver drives the screw assembling machine to move downwards, and a rotating shaft of the screw assembling machine penetrates through a vertical through hole of the screw guide block, so that screws can be accurately butted and locked; thereby completing the loading of the glass beads. The preset positions of the glass beads and the screws are accurate, and the screw assembly machine can also accurately butt the screws and realize locking.

Drawings

FIG. 1 is a schematic view showing the overall structure of a production line of a fire sprinkler head according to an embodiment;

FIG. 2 is a schematic structural view of a transport mechanism in an embodiment;

FIG. 3 is an enlarged schematic view of area A of FIG. 2;

FIG. 4 is an enlarged schematic view of region B of FIG. 2;

FIG. 5 is a schematic structural diagram of a first positioning device in an embodiment;

FIG. 6 is a schematic structural diagram of a showerhead fixture in an embodiment;

FIG. 7 is a schematic perspective view of a valve body loading mechanism in an embodiment;

FIG. 8 is a schematic perspective view of a feeding mechanism of a valve body at another angle in the embodiment;

FIG. 9 is a first exploded view of a portion of the valve body loading mechanism of the embodiment;

FIG. 10 is a second schematic view of the valve body loading mechanism in the embodiment shown in exploded view;

FIG. 11 is a front view of the mount of the embodiment;

FIG. 12 is a schematic structural view of a valve plate feeding mechanism in the embodiment;

FIG. 13 is a first perspective view of the dispensing mechanism and the assembly mechanism of the embodiment;

FIG. 14 is a schematic perspective view of a second embodiment of the dispensing mechanism and the mounting mechanism;

FIG. 15 is a third schematic perspective view of the dispensing mechanism and the mounting mechanism in the embodiment;

FIG. 16 is a sectional view of the screw guide block in the embodiment;

FIG. 17 is a schematic structural view of a first clamping block in the embodiment;

FIG. 18 is a perspective view showing the construction of the embodiment;

FIG. 19 is a transverse sectional view of the embodiment;

FIG. 20 is an enlarged view of area C of FIG. 19;

FIG. 21 is an enlarged view of area D of FIG. 19;

fig. 22 is a perspective view showing a pair of gripper arms according to an embodiment.

Detailed Description

To further illustrate the various embodiments, the invention provides the accompanying drawings. The accompanying drawings, which are incorporated in and constitute a part of this disclosure, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the embodiments. Those skilled in the art will appreciate still other possible embodiments and advantages of the present invention with reference to these figures. Elements in the figures are not drawn to scale and like reference numerals are generally used to indicate like elements.

The invention will now be further described with reference to the accompanying drawings and detailed description.

The embodiment provides a production line of fire sprinkler head, including control system and the operation system of connection control system, specifically, control system can adopt the PLC control system who applies to automation equipment among the prior art, can control each mechanism of operation system to realize the coordinated operation of each mechanism.

Specifically, referring to fig. 1 to 17, the operating system includes a conveying mechanism 100 for conveying the shower head valve body 5, and a valve plate feeding mechanism 300, a dispensing mechanism 400 and an assembling mechanism 500 which are sequentially arranged along a conveying direction of the conveying mechanism 100, that is, the shower head valve body 5 conveyed by the conveying mechanism 100 sequentially passes through the valve plate feeding mechanism 300, the dispensing mechanism 400 and the assembling mechanism 500. The valve plate feeding mechanism 300 is used for connecting a valve plate supply device to transfer the valve plates to the spray header valve body 5 on the transmission mechanism 100, so that feeding of the valve plates is realized. The glue dispensing mechanism 400 is connected with a glue supply device and used for dispensing glue for the spray head valve body 5 provided with the valve plate.

With continued reference to fig. 13-17, the assembly mechanism 500 includes a screw assembly and a glass bead loading assembly, and in particular, the screw assembly and the glass bead loading assembly are mounted to a mounting bracket 510. The screw assembly component comprises a first lifting driver 521 (specifically, a driving cylinder), a screw assembly machine 522 and a screw guide block 523, wherein the screw guide block 523 is provided with a vertical through hole 5231 and an inclined guide hole 5232 communicated with the vertical through hole 5231, the first lifting driver 521 is connected with the screw assembly machine 522, a rotating shaft of the screw assembly machine 522 is arranged in the vertical through hole 5231 of the screw guide block 523 in a penetrating manner, and the inclined guide hole 5232 is used for connecting a screw feeding device. The glass bead feeding assembly comprises a clamping seat and an ejection tube 531, the ejection tube 531 is used for being connected with a glass bead feeding device, the tail end of the ejection tube 531 extends to the position below the screw guide block 523, and the clamping seat corresponds to the tail end of the ejection tube 531 and is used for clamping glass beads ejected by the ejection tube 531.

When the assembly mechanism is used for assembly operation, the ejection tube 531 ejects the glass beads, the clamping seat clamps and positions the glass beads ejected by the ejection tube 531, the glass beads can be accurately pre-fixed on the shower head valve body 5, and pre-assembly is achieved; then, the screw enters the vertical through hole 5231 through the inclined guide hole 5232 of the screw guide block 523 and is output from the vertical through hole 5231, and the screw can accurately fall onto the shower head valve body 5, so that the pre-assembly of the screw is realized. Finally, the first lifting driver 521 drives the screw assembling machine 522 to move downwards, and a rotating shaft of the screw assembling machine 522 penetrates through a vertical through hole 5231 of the screw guide block 523, so that screws can be accurately butted and locked; thereby completing the assembly. The pre-fixing positions of the glass beads and the screws are accurate, and the screw assembling machine 522 can also accurately butt the screws and achieve locking.

Thus, the valve plate is loaded into the shower head valve body 5 through the valve plate loading mechanism 300, the dispensing mechanism 400 dispenses the valve plate, and the assembling mechanism 500 assembles and locks the glass beads; thereby realizing mechanized assembly. The method has the characteristics of high operation efficiency and high qualification rate.

Further, as shown in fig. 2 to fig. 6, in this embodiment, the conveying mechanism 100 includes a linear chute 111, a material returning conveying belt 112, a front propelling device 121, a front switching device 123, and a rear switching device 122, where the linear chute 111 is used for conveying the shower head fixture 1 loaded with the shower head valve body 5, that is, the shower head fixture 1 is used for fixing the shower head valve body 5. The valve plate feeding mechanism 300, the glue dispensing mechanism 400 and the assembling mechanism 500 are sequentially arranged along the transmission direction of the linear chute 111; the rear end of the linear sliding chute 111 is communicated with the front end of the material returning conveying belt 112 through a first transition passage 113, and the rear end of the material returning conveying belt 112 is communicated with the front end of the linear sliding chute 111 through a second transition passage 114; thus, a circulating transmission channel is formed.

The front-end propelling device 121 corresponds to the front end of the linear sliding groove 111 to push the spray header tool 1 into the linear sliding groove 111 from the front end of the linear sliding groove 111, so that when the front-end propelling device 121 pushes one spray header tool 1, the spray header tool 1 in the linear sliding groove 111 advances one position, and the rear end of the linear sliding groove 111 moves out of one spray header tool 1, so that the spray header tool 1 moves on the linear sliding groove 111.

The rear end switching device 122 is arranged on the first transition channel 113 to transfer the shower head tool 1 output from the rear end of the linear chute 111 to the front end of the return conveying belt 112; that is, after the rear end of the linear chute 111 moves out of one shower head fixture 1, the rear end is transferred to the front end of the material returning conveying belt 112 through the rear end switching device 122, and the material returning conveying belt 112 conveys the material returning conveying belt to the second transition channel 114; specifically, the feed back conveying belt 112 may adopt a belt conveying device in the prior art, and the like.

The front end switching device 123 is arranged on the second transition channel 114 to transfer the shower head tooling 1 output from the rear end of the feed back conveying belt 112 to the front end of the linear chute 111; namely, when the feed back conveying belt 112 outputs one spray header tool 1, the spray header tool is transferred to the front end of the linear chute 111 through the front end switching device 123, so that one cycle is realized; thereby can be fine realize shower head frock 1 circulation and supply.

Specifically, still include positioner, positioner sets up shower head frock 1 in order to fix a position sharp spout 111 at the side of sharp spout 111, so, can be fine fix a position shower head frock 1 on sharp spout 111, guarantee the machining precision.

Further, referring to fig. 6, in this embodiment, a side end of the showerhead module 1 has a positioning notch 2. The positioning device has two configurations, respectively defined as a first positioning device 131 and a second positioning device 132. The first positioning device 131 includes a driving cylinder (defined as a first driving cylinder 1311) and a positioning rod 1312, and the first driving cylinder 1311 is fixedly disposed, for example, fixed to a frame. The positioning rod 1312 is arranged on the first driving cylinder 1311 so as to be close to or far from the linear chute 111 by being driven by the first driving cylinder 1311; that is, when the first driving cylinder 1311 drives the positioning rod 1312 to approach the linear sliding groove 111, the positioning rod 1312 can be inserted into the positioning notch 2 of the shower head tool 1, and the single shower head tool 1 can be positioned. The first positioning device 131 is mainly configured to position a single showerhead tool.

Specifically, the second positioning device 132 includes a guide rail 1321, a positioning plate 1322 and a driving cylinder (defined as a second driving cylinder 1323), the guide rail 1321 is perpendicular to the linear sliding chute 111, the positioning plate 1322 is slidably mounted on the guide rail 1321 and is provided with a plurality of positioning protrusions 1324 at intervals corresponding to the linear sliding chute 111, and the second driving cylinder 1323 is drivingly connected with the positioning plate 1322 to drive the positioning plate 1322 to approach or separate from the linear sliding chute 111. That is, when the second driving cylinder 1323 drives the positioning plate 1322 to approach the linear sliding chute 111, the plurality of positioning protrusions 1324 on the positioning plate 1322 can be simultaneously inserted into the positioning notches 2 of the plurality of shower head fixtures 1, thereby positioning the plurality of shower head fixtures 1.

The single positioning mode of the first positioning device 131 and the multiple positioning modes of the second positioning device 132 are suitable for positioning in different situations, and can be specifically selected by those skilled in the art according to actual situations. Of course, in other embodiments, the structure and positioning manner of the positioning device are not limited thereto.

Specifically, in this embodiment, the linear sliding groove 111 and the material returning transmission belt 112 are arranged in parallel, so that the layout space is saved, and the position of the shower head tool 1 is not affected.

The front end propelling device 121 comprises a propelling cylinder 1211 and a push plate 1212, wherein the propelling cylinder 1211 is in driving connection with the push plate 1212 so as to drive the push plate 1212 to approach or move away from the front end of the linear chute 111; when the propulsion cylinder 1211 drives the push plate 1212 to move close to the front end of the linear sliding chute 111, the spray header tool 1 located at the front end of the linear sliding chute 111 is pushed into the linear sliding chute 111 to realize transmission; and after the resetting, the push plate 1212 is driven to be far away, so that the resetting is realized. So set up, simple structure realizes easily. Of course, in other embodiments, the implementation structure of the front-end propelling device 121 is not limited thereto.

The rear end switching device 122 comprises a first translation driver 1221 and a first push plate 1222, wherein the first translation driver 1221 is connected to the first push plate 1222 to drive the first push plate 1222 to move back and forth on the first transition channel 113, so as to push the shower head tooling 1 output from the rear end of the linear chute 111 to the front end of the loop material conveying belt 112. That is, when the rear end of the linear chute 111 outputs a shower head tool 1, the first translation driver 1221 drives the first push plate 1222 to move, so as to push the shower head tool 1 to the front end of the material returning transmission belt 112, and transmit the shower head tool 1 by the material returning transmission belt 112; after completion, the first translational driver 1221 drives the first push plate 1222 to reset.

More specifically, the first push plate 1222 is provided with a first sensor (not shown) for sensing whether the shower head fixture 1 is in place, and when the shower head fixture 1 is output through the rear end of the linear sliding groove 111, the first sensor senses the position. The first sensor transmits a sensing signal to the control system, and the control system controls the first translation driver 1221 to drive the first push plate 1222 to move, so that the shower head tool 1 is transferred.

The front end switching device 123 includes a second translation driver 1231 and a second push plate 1232, where the second translation driver 1231 is connected to the second push plate 1232 to drive the second push plate 1232 to reciprocate on the second transition channel 114, so as to push the shower head tooling 1 output from the rear end of the material returning conveying belt 112 to the front end of the linear chute 111. That is, when the rear end of the feeding back conveyor belt 112 outputs one spray header fixture 1, the second translation driver 1231 drives the second push plate 1232 to move, so as to push the spray header fixture 1 to the front end of the linear chute 111; after completion, the second translation driver 1231 drives the second push plate 1232 to reset.

Similarly, the second push plate 1232 is provided with a second sensor 142 for sensing whether the shower head fixture 1 is in place. When the shower head tooling 1 is output through the rear end of the material returning transmission belt 112, the shower head tooling 1 is sensed by the second sensor 142. The second sensor 142 transmits the sensing signal to the control system, and the control system controls the second translation driver 1231 to drive the second push plate 1232 to move, so that the shower head tool 1 is transferred.

Specifically, the first translational actuator 1221 and the second translational actuator 1231 may be configured as a horizontal pushing mechanism such as an air cylinder or other driving devices capable of achieving horizontal pushing.

Of course, in other embodiments, the rear end switching device 122 and/or the front end switching device 123 may also use other transferring devices such as flipping, grabbing, etc.

Further, in this embodiment, the showerhead fixture 1 has a positioning block 3 for assembling the showerhead valve body, specifically, the positioning block 3 is a conical spiral positioning block made of nylon, in this embodiment, five nylon pieces (not limited to five in other embodiments) are uniformly distributed on the periphery of the central column of the positioning block and extend obliquely outward at a certain angle. So, rely on the deformation of nylon to realize using the shower head of different size to realize successful material loading and location requirement, the practicality is wider.

Further, the operating system further includes a feeding channel 201 and a valve body feeding mechanism 200, specifically, the feeding channel 201 is used for connecting a valve body feeding device to realize feeding of the shower head valve body 5. The valve body feeding mechanism 200 is located at the front end of the valve plate feeding mechanism 300 and is also located between the feeding channel 201 and the transmission mechanism 100 (specifically, the linear chute 111 of the transmission mechanism 100) so as to transfer the shower head valve body 5 on the feeding channel 201 to a tool (namely, a shower head tool 1) on the linear chute 111. Therefore, the mechanical transfer of the shower head valve body 5 can be realized, and then the shower head valve body enters the valve body feeding mechanism 300 to start the assembly of parts.

Specifically, as shown in fig. 7 to 11, the valve body feeding mechanism 200 includes an installation seat 210, a rotary driver (specifically, a driving motor 250), a swinging plate 251, a vertical connecting plate 221, a horizontal connecting plate 231, and a grabbing assembly 240, wherein the installation seat 210 is provided with an inverted "U" -shaped limiting slot 211 and a horizontal guide rail 212 arranged horizontally, specifically, as shown in fig. 11, the inverted "U" -shaped limiting slot 211 includes a horizontal slot 2111 extending horizontally and vertical slots communicating with the left and right ends of the horizontal slot 2111 (the left vertical slot is defined as a left vertical slot 2112, and the right vertical slot is defined as a right vertical slot 2113), and the vertical slots all extend downward, so that an inverted "U" -shaped structure is formed.

The driving motor 250 is fixed on the mounting seat, and the vertical connecting plate 221 is slidably assembled on the horizontal guide rail 212, so that the vertical connecting plate 221 can horizontally translate left and right. The vertical connecting plate 221 is provided with a vertical guide rail 222, and the transverse connecting plate 231 is slidably assembled on the vertical guide rail 222; in this manner, the transverse web 231 is able to translate vertically up and down.

One end of the swinging plate 251 is connected to a rotating shaft of the driving motor 250, the other end of the swinging plate 251 is provided with a long slot 2511, the transverse connecting plate 231 is provided with a limit pin 233, and the limit pin 233 penetrates through the long slot 2511 of the swinging plate 251 and the limit slot 211 of the mounting seat 210; the grasping assembly 240 is assembled on the transverse connection plate 231.

During operation, the driving motor 250 drives the swinging plate 251 to swing, the swinging of the swinging plate 251 can drive the limiting pin shaft 233 and the transverse connecting plate 231 to move on the inverted 'U' -shaped track of the limiting slot hole 211, for example, in the process that the swinging plate 251 swings from the left side to the right side, the limiting pin shaft 233 moves upwards from the bottom of the left vertical slot 2112 and enters the transverse slot 2111, and at this time, the transverse connecting plate 231 and the grabbing assembly 240 can synchronously ascend; after the limit pin shaft 233 enters the transverse slot 2111, the limit pin shaft 233 is driven to translate from the left end to the right end of the transverse slot 2111 along with the continuous rightward swinging of the swinging plate 251, and at the moment, the vertical connecting plate 221, the transverse connecting plate 231 and the grabbing assembly 240 can synchronously translate rightward; then, the swinging plate 251 continuously swings rightwards to drive the limit pin shaft 233 to move downwards from the top to the bottom of the right vertical slot 2113, and at the moment, the transverse connecting plate 231 and the grabbing component 240 synchronously descend; in summary, the swing plate 251, during the swing from the left side to the right side, drives the grabbing component 240 to perform left side up-right translation-right side down-movement. Similarly, the swinging plate 251 swings from right to left, and the reverse motion is generated, i.e. the grabbing component 240 is driven to move up from right, translate left, and move down from left.

It is defined that when the limit pin 233 is located at the bottom of the left vertical slot 2112, the position where the grasping assembly 240 is located is the first position, and when the limit pin 233 is located at the bottom of the right vertical slot 2113, the position where the grasping assembly 240 is located is the second position. The end of the feeding channel 201 corresponds to a first station, and the linear chute 111 of the conveying mechanism 100 is located at a second station. The driving motor 250 drives the swinging plate 251 to swing left and right, so that the limiting pin shaft 233 moves back and forth in the limiting slot hole 211, and simultaneously drives the grabbing assembly 240 to switch between a left station and a right station (a first station and a second station). When the grabbing component 240 reaches the first station, the valve body (i.e. the shower head valve body 5) of the feeding channel 201 is grabbed, and then the valve body is placed on the shower head tool 1 of the linear sliding groove 111 when the valve body is transferred to the second station, so that the mechanical transfer is realized.

And the valve body feeding mechanism 200 provided by the embodiment has the advantages of simple structure, low cost and easy realization.

Further, in this embodiment, a baffle 223 is further disposed on the vertical connecting plate 221, the baffle 223 is located below the transverse connecting plate 231, and an elastic buffer 232 (such as a gas spring) corresponding to the baffle 223 is disposed on the transverse connecting plate 231; so set up, when snatching subassembly 240 from top to bottom and removing, horizontal connecting plate 231 moves downwards in step this moment, and elastic buffer 232 can the butt realize the buffering on baffle 223 when moving down a certain position, reduces the speed that moves down, and the speed is too fast and lead to the collision damage when preventing to pack into the valve body on the frock.

Specifically, the number of the horizontal guide rails 212 is two, the horizontal guide rails are respectively located on the upper side and the lower side of the limiting groove hole 211, the upper end and the lower end of the vertical connecting plate 221 are respectively assembled on the horizontal guide rails 212 on the upper side and the lower side, the vertical guide rail 222 is arranged in the middle of the vertical connecting plate 221, and therefore the vertical connecting plate 221 is evenly stressed and is more stable in horizontal translation. Of course, in other embodiments, this is not limiting.

The middle part of the transverse connecting plate 231 is assembled on the vertical guide rail 222, the first end of the transverse connecting plate 231 is provided with the limit pin shaft 233, and the grabbing component 240 is assembled on the second end of the transverse connecting plate 231. With the arrangement, the stress of the transverse connecting plate 231 is more uniform, and the vertical translation is more stable. Of course, in other embodiments, this is not limiting.

The mounting base 210 is further provided with two position sensors 261, and the two position sensors 261 are respectively located at the left side and the right side of the limiting slot hole 211 to respectively sense the swinging position of the swinging plate 251. With such an arrangement, in actual use, the two position sensors 261 are used to connect to the control system, when the swinging plate 251 swings to, for example, the leftmost position corresponding to the left position sensor 261, the position sensor 261 senses the position of the swinging plate 251 and outputs a signal to the control system, and the control system controls the driving motor 250 to stop or reverse, etc.; preventing the drive motor 250 from doing useless work. The same is true when the swinging plate 251 swings to the rightmost side.

Snatch subassembly 240 for the centre gripping subassembly that realizes snatching through the centre gripping, it is specific, this centre gripping subassembly's structure is: the clamping assembly comprises a clamping cylinder 241 and a claw clamp 242 arranged on the clamping cylinder 241, and the clamping cylinder 241 is fixed on the transverse connecting plate 231. When reaching the first station, the clamping cylinder 241 drives the jaw 242 to close to clamp the valve body on the feeding passage, and when reaching the second station, the clamping cylinder 241 drives the jaw 242 to open to release the valve body. And a clamping structure is adopted, so that the structure is simple and easy to realize. Of course, in other embodiments, the grabbing component 240 may also be a suction component that realizes grabbing by vacuum suction, or the like.

Of course, in other embodiments, the structure of the valve body loading mechanism 200 is not limited thereto.

Further, referring to fig. 12, in this embodiment, the valve plate feeding mechanism 300 includes a mounting seat 310, a rotary driver (also referred to as a driving motor), a swing plate, a vertical connecting plate 321, a horizontal connecting plate 331, and a grabbing assembly 340, and the valve plate feeding mechanism 300 is substantially the same as the valve body feeding mechanism 200, that is, the connection relationship between the components of the valve plate feeding mechanism 300 is substantially the same as the connection relationship between the components of the valve body feeding mechanism 200, so that the same action can be achieved. Meanwhile, the output end of the valve plate supply device is located at the first station of the valve plate feeding mechanism 300, and the valve plate feeding mechanism 300 transfers the valve plate located at the first station to the shower head valve body 5 at the second station through the grabbing assembly 340. The main differences between the valve plate feeding mechanism 300 and the valve body feeding mechanism 200 are as follows: the grabbing component 340 of the valve plate feeding mechanism 300 is an adsorption component for realizing grabbing through vacuum adsorption, the valve plate structure is small, and better transfer can be realized by transferring the valve plate in a vacuum adsorption mode. Of course, in other embodiments, the valve plate feeding mechanism 300 is not limited thereto, and may also have a structure completely different from the valve body feeding mechanism 200.

Specifically, the dispensing mechanism 400 includes a second lifting driver 410 and a dispensing machine 420, the second lifting driver 410 is fixed on the mounting frame 510, the telescopic driving rod of the second lifting driver 410 is connected with the dispensing machine 420 so as to drive the dispensing machine 420 to lift, so that dispensing operation is realized, and the structure is simple. Of course, in other embodiments, the structure of the glue dispensing mechanism 400 is not limited thereto.

Specifically, in the assembly mechanism 500, an abdicating window 511 is provided on the mounting rack 510, the ejection tube 531 is fixed at the rear end of the mounting rack 510, and the tail end of the ejection tube 531 passes through the abdicating window 511 and extends to the lower position of the screw guide block 523. So, place the fixed knot who launches pipe 531 in the rear that deviates from the station, save overall arrangement space for the mechanism is more compact.

Specifically, the ejector 531 is a transparent conduit for transporting glass beads, which facilitates visual confirmation of the internal conditions.

Specifically, the glass bead feeding assembly further includes a plurality of switch devices 5311, in this embodiment, five switch devices 5311 (only two switch devices 5311 are shown in fig. 2 and 3), and the five switch devices 5311 are sequentially arranged along the length direction of the ejection tube 531; by the cooperation of five switching devices 5311, the output of a single glass bead can be realized. If the first switching device is used for blocking all glass beads, when one glass bead is to be put down independently, other glass beads except the first glass bead are blocked by the second switching device, then the first switching device is unblocked, and the first glass bead independently slides to the shower head valve body 5 from the ejection track; simultaneously, No. three switching device, No. four switching device and No. five switching device's position can set to the detection station, detects etc. to subsequent glass pearl, so, can screen out unusual glass pearl.

More specifically, switching device 5311 includes cylinder and shutoff piece, the side direction opening has been seted up on launching tube 531, the shutoff piece is located in the side direction opening, the cylinder is connected the shutoff piece to drive the shutoff piece and stretch into launching tube 531 or shift out launching tube 531, realize the shutoff glass pearl when the shutoff piece stretches into launching tube in, remove the shutoff when shifting out launching tube 531. Meanwhile, when abnormal glass beads are detected, the glass beads can be independently taken out from the lateral opening position; if the glass beads blocked by the fourth switching device are detected to be abnormal, the second switching device and the fourth switching device keep a blocking state, the blocking block of the third switching device is moved out, and the abnormal glass beads are moved out at the same time; the screening operation of the abnormal glass beads is simpler. Of course, in other embodiments, the number and configuration of the switch devices 5311 are not limited thereto, or the switch devices 5311 need not be configured.

The clamping seat comprises a first part 532 and a second part 533 which are oppositely arranged, and a spray head valve body 5 entering the working station is positioned between the first part 532 and the second part 533; the first portion 532 includes a first translational actuator 5321 (in this embodiment, a driving cylinder) and a first clamping block 5322, the first translational actuator 5321 is connected to the first clamping block 5322 to drive the first clamping block 5322 to approach or separate from the shower head valve body 5 to be processed, the first clamping block 5322 has an accommodating gap 5323, specifically a U-shaped accommodating gap 5323 in this embodiment; the second portion 533 includes a second translation driver 5331 (a driving cylinder in this embodiment) and a second clamping block 5332, and the second translation driver 5331 is connected to the second clamping block 5332 to drive the second clamping block 5332 to approach or separate from the showerhead valve body 5 to be processed. So set up, when the shower head valve body 5 arrived predetermined station, first translation driver 5321 drive first grip block 5322 was close to shower head valve body 5, and at this moment, the glass pearl was followed ejection pipe 531 roll-off, because the defect of the U-shaped breach 5323 of receiving of first grip block 5322, the glass pearl can not be ejected out the appointed scope, afterwards, second translation driver 5331 drive second grip block 5332 was close to, and first grip block 5322 and second grip block 5332 grasp the glass pearl jointly, stood the glass pearl, realized the pre-fixing of glass pearl. When the locking operation of the screw is completed, the clamping state is released, and the first clamping block 5322 and the second clamping block are reset 5332.

Of course, in other embodiments, the structure of the mounting mechanism 500 is not limited thereto.

Further, in order to further improve subsequent operations, in this embodiment, the operation system further includes a pressure measuring mechanism 600 and a boxing mechanism 700, and a first carrying mechanism 801 is disposed between the pressure measuring mechanism 600 and the tail end of the transmission mechanism 100 (specifically, the linear chute 111); in this way, the first handling mechanism 801 may take out the assembled showerhead from the linear chute 111 and transfer the assembled showerhead to the pressure measuring mechanism 600 for pressure measurement. A second carrying mechanism 802 is arranged between the pressure measuring mechanism 600 and the boxing mechanism 700; after the pressure measurement is completed, the second carrying mechanism 802 transfers the spray header on the pressure measuring mechanism 600 to the boxing mechanism 700 for boxing and packaging. The integration of assembling, detecting and boxing is realized.

Specifically, in this embodiment, each of the first carrying mechanism 801 and the second carrying mechanism 802 includes a driving device, a transmission rail connected to the driving device, a beam slidably mounted on the transmission rail, and a plurality of gripping devices disposed on the beam. Taking the first carrying mechanism 801 as an example, the driving device drives the transmission rail to further drive the beam to slide between a first position corresponding to the linear chute 111 and a second position corresponding to the pressure measuring mechanism 600, and meanwhile, the gripping device is used for taking and placing products to realize the transfer of the products. Simple structure and easy realization.

Further, the packing mechanism 700 includes a moving rail and a box body disposed on the moving rail. The second carrying mechanism 802 transfers the tested spray header to the box body, and the moving track drives the box body to move, so that boxing is realized.

Of course, in other embodiments, the structures of the first conveyance mechanism 801, the second conveyance mechanism 802, and the packing mechanism 700 are not limited thereto.

Further, as shown in fig. 18 to fig. 22, the pressure measuring mechanism 600 includes a fixed base plate 61, a water pressure self-locking mechanism 62, a plurality of gripper pairs 63, and a plurality of opening and closing driving mechanisms 64.

As a preferred embodiment, the fixed base plate 61 has a plurality of square grooves 611 arranged in an array thereon, and the square grooves 611 are internally provided with a sealing gasket 612, the gasket 612 can be a fluorine rubber gasket, the sealing gasket 612 is provided with a valve body positioning block 613, and the valve body positioning block 613 is internally provided with a positioning hole 6130 for placing a fire nozzle. Here, the positioning block 613 may span one or more vertical square grooves 611 and then be locked to the fixing base plate 61 by screws, so that when the sealing gasket 612 in the square groove 611 needs to be replaced, the valve body positioning block 613 can be removed to replace quickly.

A water pressure self-locking mechanism 62 is arranged in the fixed bottom plate 61 corresponding to the square groove 611, and two sides of the square groove 611 are respectively provided with an installation through groove 620. The water pressure self-locking mechanism 62 comprises a push rod 621 and a pre-tightening spring 622, a step 6201 is arranged on the push rod 621, an injection cavity 610 is arranged in the fixed bottom plate 61 below the square groove 620, and the push rod 621 penetrates through the injection cavity 610, the fixed bottom plate 61 and the positioning hole 6130 from bottom to top and then abuts against the fire sprinkler 7. A limit plate 613 is fixed at the bottom of the injection cavity 610, and the pre-tightening spring 622 is arranged between the limit plate 613 and the step 6201.

The mechanical claw pairs 63 pass through the installation through groove 620 and are arranged on the fixed base plate 61 and can be fixed on the fixed base plate 61 in an opening and closing mode and are symmetrically arranged on two sides of the square groove 611, and two sides of each mechanical claw pair 63 are respectively provided with a tension spring 631 which is connected with the fixed base plate 61 or fixedly connected with the adjacent mechanical claw pair 63. For the gripper pair 63, the gripper 6301 is located on the left side, and the gripper 6302 is located on the right side.

Furthermore, every two sets of gripper pairs 663 are transversely arranged, a plurality of sets of gripper pairs are longitudinally arranged in front and at the back, the two

grippers

6302 and 6301 in the middle are arranged in the same installation through groove 620 and are fixedly connected with each other through a tension spring 631, and the two

grippers

6301 and 6302 in the outer sides are respectively fixed on the fixed bottom plate 61 through a tension spring 631. This kind of mode of arranging for a plurality of fire control shower nozzles 7 can realize detecting simultaneously, and transversely arrange two sets of gripper pairs 63 linkage each other, when one of them set of gripper pair 63 was in the open mode, another set of gripper pair 63 was in the closed mode, so, can realize one row in the in-process that detects, and another row can remove in step and rearrange the shower nozzle that does not detect, thereby can realize high-efficient and automated inspection.

Specifically, each of the

fingers

6301, 6302 may have an inverted "L" shape, which is divided into an upper end portion 63011(63021), a bent portion 63012(63022), and a lower end portion 63013(63023) from top to bottom. The extension spring 631 is disposed at the bending portion 63012(63022), the first through hole 6501 is disposed between the bending portion 63012(63022) and the lower end portion 63013(63023), the first optical axis 651 is disposed in the first through hole 6501, the

mechanical claws

6301 and 6302 arranged in the longitudinal direction are movably connected through the first optical axis 651, and two ends of the first optical axis 651 are fixed to the bottom of the fixing base plate 61 through an optical axis seat 6503 respectively.

Furthermore, the

mechanical claws

6301 and 6302 arranged longitudinally are provided with deep groove ball bearings 66 between each two adjacent groups, the lower end portions 63013(63023) of the

mechanical claws

6301 and 6302 are provided with second through holes 6502, the second through holes 6502 are elliptical holes, the second optical axes 6502 penetrate through the elliptical holes longitudinally, and the deep groove ball bearings 66 are connected longitudinally through the second optical axes 652. An adjusting screw 6503 is further arranged on the outer side of each

mechanical claw

6301, 6302, and the opening and closing degree of each mechanical claw can be finely adjusted by rotating the adjusting screw 6503, so as to achieve the best matching effect.

And a plurality of opening and closing driving mechanisms 64 arranged between the mechanical claw pairs 63 at the lower part of the fixed bottom plate 61. The opening and closing driving mechanism 64 comprises an air cylinder 641 and a trapezoidal block 642, and the bottom of the trapezoidal block 642 is fixedly connected with a push plate 6421. The piston rod 6411 of the cylinder 641 is connected to an end plate 6412, and the end plate 6412 is fixedly connected to the bottom of the push plate 6421. Deep groove ball bearings 66 which are arranged in a longitudinal mode are arranged between the

mechanical claws

6301 and 6302 which are longitudinally arranged front and back at the bottom ends of the

mechanical claws

6301 and 6302 on the left side and the right side, the deep groove ball bearings 66 on the two sides are in tangent fit with a trapezoidal block 642, and the trapezoidal block 642 can be arranged between the

mechanical claws

6301 and 6302 on the left side and the right side in a vertically movable mode. The cylinder 641 is provided with a sensor for detecting whether the piston rod 6411 is in place.

The pair of gripper arms 63 open and close by the opening and closing drive mechanism 64. In the initial state, the opening and closing driving mechanism 64 makes the mechanical claw pair 63 in an open state, the push rod 621 presses the injection cavity 610 upward under the elastic force of the pre-tightening spring 622, the step 6201 thereon makes the injection cavity 610 in a closed state, the hydraulic self-locking mechanism 62 is in a self-locking state, and the cylinder 641 is located at the top dead center at the initial position. When the fire sprinkler is placed on the valve body positioning block 613, the piston rod 6411 moves downward to the bottom dead center. In the process, the piston rod 6411 drives the trapezoid block 642 to move downwards, the trapezoid block 642 is tangent to the deep groove ball bearing 66, when the trapezoid block 642 moves downwards, the deep groove ball bearing 66 is under the action of radial load, the angle of the mechanical claw pair 63 is changed, the mechanical claw pair 63 grabs, positions and presses the fire-fighting nozzle valve body, the fire-fighting nozzle valve body 671 moves downwards to push the push rod 621, the pre-tightening spring 622 contracts completely, the self-locking state is relieved, and then air tightness detection can be performed on the fire-fighting nozzle 7 by using water pressure.

The detection process of the detection nozzle is as follows:

when the mechanical claw pair 63 is opened, the fire-fighting nozzle 7 is placed on the valve body positioning block 613 through automatic operation, then the opening and closing driving mechanism 64 actuates, the mechanical claw pair 63 is closed, the water pressure self-locking mechanism 62 is pressed in the process to unlock the mechanical claw pair, the air tightness detection of the fire-fighting nozzle 7 is completed, after the detection is completed, the opening and closing driving mechanism 64 actuates again to open the mechanical claw pair 63, meanwhile, the water pressure self-locking mechanism 62 is synchronously self-locked, and the fire-fighting nozzle 7 which is detected can be automatically removed and can be newly arranged with the fire-fighting nozzle which is not detected.

While the invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. The utility model provides a production line of fire sprinkler head, includes control system and connection control system's operating system, its characterized in that: the operating system comprises a transmission mechanism for transmitting the shower head valve body, and a valve plate feeding mechanism, a dispensing mechanism and an assembling mechanism which are sequentially arranged along the transmission direction of the transmission mechanism, wherein the valve plate feeding mechanism is used for connecting a valve plate supply device so as to transfer the valve plate to the shower head valve body on the transmission mechanism;

the assembling mechanism comprises a screw assembling component and a glass bead feeding component, the screw assembling component comprises a first lifting driver, a screw assembling machine and a screw guide block, the screw guide block is provided with a vertical through hole and an inclined guide hole communicated with the vertical through hole, the first lifting driver is connected with the screw assembling machine, the rotating shaft of the screw assembling machine penetrates through the vertical through hole of the screw guide block, the inclined guide hole is used for connecting a screw feeding device, the glass bead feeding component comprises a clamping seat and an ejection pipe, the ejection pipe is used for connecting a glass bead feeding device, the tail end of the ejection pipe extends to the position below the screw guide block, and the clamping seat corresponds to the tail end of the ejection pipe and is used for clamping glass beads ejected by the ejection pipe.

2. A fire sprinkler head production line as defined in claim 1, wherein: the conveying mechanism comprises a linear chute, a feed back conveying belt, a front end propelling device, a front end switching device and a rear end switching device, the linear chute is used for conveying a spray head tool loaded with a spray head valve body, and the valve plate feeding mechanism, the dispensing mechanism and the assembling mechanism are sequentially arranged along the conveying direction of the linear chute; the rear end of the linear sliding chute is communicated with the front end of the return conveying belt through a first transition channel, and the rear end of the return conveying belt is communicated with the front end of the linear sliding chute through a second transition channel; the front end propelling device corresponds to the front end of the linear sliding chute so as to push the spray head tool into the linear sliding chute from the front end of the linear sliding chute, and the rear end switching device is arranged on the first transition channel so as to transfer the spray head tool output from the rear end of the linear sliding chute to the front end of the material returning conveying belt; the front end switching device is arranged on the second transition channel to transfer the spray header tool output from the rear end of the return conveying belt to the front end of the linear sliding groove.

3. A fire sprinkler head production line as defined in claim 2, wherein: the transmission mechanism further comprises a positioning device, and the positioning device is arranged at the side end of the linear sliding groove to position the spray header tool in the linear sliding groove.

4. A fire sprinkler head production line as defined in claim 1 or 2, wherein: the operation system further comprises a feeding channel and a valve body feeding mechanism, wherein the valve body feeding mechanism is located at the front end of the valve plate feeding mechanism and is also located between the feeding channel and the transmission mechanism so as to transfer the spray head valve body on the feeding channel to a tool on the transmission mechanism.

5. A fire sprinkler head production line as defined in claim 4, wherein: the valve body feeding mechanism comprises a mounting seat, a rotary driver, a swinging plate, a vertical connecting plate, a transverse connecting plate and a grabbing assembly, wherein an inverted U-shaped limiting slotted hole and a horizontal guide rail which is transversely arranged are arranged on the mounting seat; one end of the swinging plate is connected to a rotating shaft of the rotary driver, the other end of the swinging plate is provided with a long groove hole, the transverse connecting plate is provided with a limiting pin shaft, and the limiting pin shaft penetrates through the long groove hole of the swinging plate and the limiting groove hole of the mounting seat; the grabbing component is assembled on the transverse connecting plate.

6. A fire sprinkler head production line as defined in claim 1, wherein: the valve plate feeding mechanism comprises a mounting seat, a rotary driver, a swinging plate, a vertical connecting plate, a transverse connecting plate and a grabbing assembly, wherein an inverted U-shaped limiting slotted hole and a horizontal guide rail which is transversely arranged are arranged on the mounting seat; one end of the swinging plate is connected to a rotating shaft of the rotary driver, the other end of the swinging plate is provided with a long groove hole, the transverse connecting plate is provided with a limiting pin shaft, and the limiting pin shaft penetrates through the long groove hole of the swinging plate and the limiting groove hole of the mounting seat; the grabbing component is assembled on the transverse connecting plate.

7. A fire sprinkler head production line as defined in claim 1, wherein: the glass bead feeding assembly further comprises a plurality of switch devices, and the switch devices are sequentially arranged along the length direction of the ejection tube.

8. A fire sprinkler head production line as defined in claim 1, wherein: the clamping seat comprises a first part and a second part which are oppositely arranged, the first part comprises a first translation driver and a first clamping block, the first translation driver is connected with the first clamping block so as to drive the first clamping block to be close to or far away from the shower head valve body to be processed, and an accommodating notch is formed in the first clamping block; the second part comprises a second translation driver and a second clamping block, and the second translation driver is connected with the second clamping block so as to drive the second clamping block to be close to or far away from the shower head valve body to be processed.

9. A fire sprinkler head production line as defined in claim 1, wherein: the operation system also comprises a pressure measuring mechanism and a boxing mechanism, wherein a first carrying mechanism is arranged between the pressure measuring mechanism and the tail end of the transmission mechanism; and a second carrying mechanism is arranged between the pressure measuring mechanism and the boxing mechanism.

10. A fire sprinkler head production line as defined in claim 9, wherein: the pressure measuring mechanism includes:

the water pressure self-locking device comprises a fixed bottom plate, a plurality of positioning tables are arranged in an array, installation through grooves are respectively formed in two sides of each positioning table, and a water pressure self-locking mechanism is arranged on the fixed bottom plate corresponding to the positioning tables;

the mechanical claw pairs are arranged on the fixed bottom plate in a penetrating manner, can be fixed on the fixed bottom plate in an opening and closing manner, and are symmetrically arranged on two sides of the positioning table, and two sides of each mechanical claw pair are respectively provided with a tension spring which is connected with the fixed bottom plate or fixedly connected with the adjacent mechanical claw pairs;

and the opening and closing driving mechanisms are arranged between the mechanical claw pairs at the lower part of the fixed bottom plate.