Automatic feeder for circuit board

Abstract

The utility model discloses an automatic feeder for a circuit board, and relates to the technical field of feeders, the automatic feeder comprises an operation table and a cleaning mechanism arranged on the outer wall of the operation table, by arranging an adsorption head, in order to improve the effects of conveniently cleaning dust on the surface of the circuit board, adjusting and cleaning the circuit boards with different sizes and conveniently treating the collected dust, the automatic feeder can be used for automatically feeding the circuit board. A servo motor can be started to drive a sliding block to slide along the inner wall of a sliding groove through rotation of a belt pulley to drive a connecting rod to slide, then a driving motor is started to drive a threaded rod to rotate to drive an adjusting block to slide along the inner wall of an adjusting groove to drive an adsorption head to stretch out and draw back, and then a limiting block slides along the inner wall of a limiting groove to drive a drawer to slide out along the outer wall of a collecting box. According to the automatic feeding machine for the circuit board, the dust collecting device is arranged on the surface of the circuit board, the effect of conveniently treating collected dust is achieved, the control operation of conveniently collecting and cleaning the dust attached to the surfaces of the circuit boards of different sizes is achieved, and compared with an existing feeding machine, the automatic feeding machine for the circuit board has the advantage that the dust attached to the surfaces of the circuit boards can be conveniently cleaned.

Description

Technical Field

[0001] This utility model relates to the field of feeding machine technology, specifically an automatic feeding machine for circuit boards. Background Technology

[0002] A circuit board (also known as a PCB) is a board with printed conductors. Its main function is to reduce the space occupied by conductors and organize them in a clear layout. Circuit boards are the result of copper-clad laminate processing. Copper-clad laminate is made by covering the surface of an insulating substrate with a copper foil. Copper-clad laminate is usually processed by etching. The process involves coating the conductors to be retained on the copper-clad laminate with an anti-corrosion material, and then using chemical reagents to etch away the rest, leaving the copper foil that serves as the conductor. In daily operation, circuit boards are transported using a feeder.

[0003] For example, application number 201921208290.3 discloses an automatic feeder for circuit boards, including a machine body and a lifting platform; the machine body is provided with a lifting channel, characterized in that: a circuit board transport channel is provided on the top of the machine body; a plurality of conveying rollers are provided in the transport channel; rollers are installed on the lifting platform; a transverse transport device is provided directly above the lifting platform; the transverse transport device includes a drive motor, a roller shaft, a plurality of drive rollers and a coupling; the drive motor is installed on the side wall of the machine body, the output end of the motor shaft of the drive motor passes through the side wall of the machine body and is fixedly connected to one end of the roller shaft through the coupling, the roller shaft is rotatably arranged with the machine body; each drive roller is evenly sleeved on the roller shaft and fixedly connected to the roller shaft. This utility model is highly practical and easy to promote.

[0004] However, while this type of automatic feeder for circuit boards can feed circuit boards well, it is often not very effective at adjusting and adsorbing dust adhering to the surface of circuit boards of different sizes. Furthermore, after the dust adsorption is completed, the synchronization of the automatic push and conveying of the circuit board when the clamping rod is released is not high, thus reducing the efficiency of circuit board processing and conveying.

[0005] Therefore, in view of this, we have studied and improved the existing structure to address its shortcomings, and proposed an automatic feeder for circuit boards. Utility Model Content

[0006] The purpose of this invention is to provide an automatic feeder for circuit boards, so as to solve the problem mentioned in the background art of low adsorption effect on dust adhering to the surface of circuit boards.

[0007] To achieve the above objectives, the present invention provides the following technical solution: an automatic feeder for circuit boards, comprising an operating table and a cleaning mechanism disposed on the outer wall of the operating table, wherein the cleaning mechanism includes a sliding component;

[0008] The sliding assembly includes a slider and an adsorption head. A conveyor belt is provided on one side of the operating table. A circuit board body is placed on the outer wall of the operating table. A connecting box is fixedly connected to the side wall of the operating table. A servo motor is fixedly connected to the outer wall of the connecting box. A pulley that is rotatably connected to the inner wall of the connecting box is fixedly connected to the output end of the servo motor. A slider that is slidably connected to the outer wall of the connecting box is fixedly connected to the outer wall of the pulley. A connecting rod is fixedly connected to one end of the slider. A drive motor is fixedly connected to the outer wall of the connecting rod. A drive threaded rod that is rotatably connected to the inner wall of the connecting rod is fixedly connected to the output end of the drive motor. An adjusting block that is slidably connected to the inner side wall of the connecting rod is threadedly connected to the outer wall of the drive threaded rod. An adsorption head that is slidably connected to the outer wall of the connecting rod is fixedly connected to one end of the adjusting block. A collection box is provided at the bottom of the operating table. A connecting pump is provided on the outer wall of the collection box. A connecting pipe that is fixedly connected to the outer wall of the connecting pump and the outer wall of the adsorption head is fixedly connected to the outer wall of the connecting pump. A drawer is slidably connected to the outer wall of the collection box. A limiting block that is slidably connected to the outer wall of the drawer and the inner side wall of the collection box is fixedly connected to the outer wall of the drawer.

[0009] Furthermore, a micro motor is fixedly connected to the outer wall of the operating platform. The output end of the micro motor is fixedly connected to a sliding threaded rod that is rotatably connected to the inner wall of the operating platform. A connecting block that is slidably connected to the inner wall of the operating platform is threaded to the outer wall of the sliding threaded rod. A slide rod is slidably connected to the outer wall of the operating platform. A rotating rod that is rotatably connected to one end of the slide rod is rotatably connected to the outer wall of the connecting block. A clamping rod located on one side of the circuit board body is fixedly connected to one end of the slide rod. A swing rod is rotatably connected to the outer wall of the operating platform. A fixing rod that is fixedly connected to the outer wall of the clamping rod is slidably connected to the outer wall of the swing rod. A telescopic block that is slidably connected to the outer wall of the operating platform is slidably connected to the outer wall of the swing rod. A push rod located on one side of the circuit board body is fixedly connected to one end of the telescopic block.

[0010] Furthermore, a groove is provided at the connection point between the outer wall of the connecting box and the slider.

[0011] Furthermore, an adjustment groove is provided at the connection point between the inner sidewall of the connecting rod and the adjustment block.

[0012] Furthermore, a limiting groove is provided at the connection between the inner side wall of the collection box and the limiting block. Two sets of limiting blocks are provided, and the positions of the two sets of limiting blocks are symmetrical about the central axis of the drawer.

[0013] Furthermore, a connecting groove is provided at the connection point between the inner wall of the operating table and the connecting block, and two sets of rotating rods are provided, with the positions of the two sets of rotating rods being symmetrical about the central axis of the operating table.

[0014] Furthermore, a sliding groove is provided at the connection between the outer wall of the operating table and the slide rod, and two sets of clamping rods are provided, with the positions of the two sets of clamping rods being symmetrical about the central axis of the circuit board body.

[0015] Furthermore, a fixing groove is provided at the connection between the outer wall of the swing rod and the fixed rod, a telescopic groove is provided at the connection between the outer wall of the operating table and the telescopic block, a swing groove is provided at the connection between the outer wall of the swing rod and the telescopic block, and two sets of push rods are provided, with the positions of the two sets of push rods being symmetrical about the central axis of the circuit board body.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. This utility model, through the setting of the adsorption head, improves the convenience of adsorbing and cleaning dust adhering to the surface of circuit boards and the adjustment and cleaning effect for circuit boards of different sizes when the feeder is used, and improves the convenience of processing the collected dust. The servo motor can be turned on to drive the slider to slide along the inner wall of the slide groove through the rotation of the pulley, thereby driving the connecting rod to slide. Then, the drive motor can be turned on to drive the adjustment block to slide along the inner wall of the adjustment groove through the rotation of the threaded rod, thereby driving the adsorption head to extend and retract along the outer wall of the connecting rod, so as to facilitate the adsorption of dust adhering to the surface of the circuit board. Then, the limit block slides along the inner wall of the limit groove, driving the drawer to slide out along the outer wall of the collection box, so as to facilitate the processing of the collected dust. This realizes the convenient control operation for collecting and processing dust adhering to the surface of circuit boards of different sizes.

[0018] 2. This utility model, through the setting of the push rod, after the dust adhering to the surface of the circuit board has been adsorbed, in order to improve the effect of simultaneously pushing the circuit board while releasing the clamping rod, a micro motor can be turned on. The rotation of the sliding threaded rod drives the connecting block to slide along the inner wall of the connecting groove, thereby driving the rotating rod to rotate. The movement of the rotating rod drives the sliding rod to slide along the inner wall of the sliding groove, thereby driving the clamping rod to clamp and fix the circuit board body. When the clamping rod slides back, through the connection of the fixing rod, the fixing rod slides along the outer wall of the swing rod, thereby driving the swing rod to rotate. The movement of the swing rod, through the connection of the swing groove, drives the telescopic block to slide along the inner wall of the telescopic groove, thereby driving the push rod to push the adsorbed circuit board body. This realizes the convenient control operation of simultaneously pushing the adsorbed circuit board after it is released. Attached Figure Description

[0019] Figure 1 This is a first-view structural diagram of the present invention;

[0020] Figure 2 This is a schematic diagram of the connection structure between the slider and the connecting rod of this utility model;

[0021] Figure 3 This is a schematic diagram of the connection structure between the adjusting block and the adsorption head of this utility model;

[0022] Figure 4 This is a schematic diagram of the connection structure between the collection box and the drawer of this utility model;

[0023] Figure 5 This is a schematic diagram of the connection structure between the rotating rod and the clamping rod of this utility model;

[0024] Figure 6 This is a schematic diagram of the connection structure between the swing rod and the push rod of this utility model.

[0025] In the diagram: 1. Operating table; 11. Conveyor belt; 12. Circuit board body; 13. Connecting box; 2. Cleaning mechanism; 21. Sliding assembly; 211. Servo motor; 212. Pulley; 213. Slider; 214. Slide groove; 215. Connecting rod; 216. Drive motor; 217. Drive threaded rod; 218. Adjusting block; 219. Adjusting groove; 220. Adsorption head; 221. Collection box; 222. Connecting pump; 223. Connecting pipe; 224. Drawer; 225. Limiting block; 226. Limiting groove; 3. Micro motor; 31. Sliding threaded rod; 32. Connecting block; 33. Connecting groove; 34. Rotating rod; 35. Sliding rod; 36. Sliding groove; 37. Clamping rod; 38. Fixing rod; 39. Swinging rod; 40. Fixing groove; 41. Telescopic block; 42. Telescopic groove; 43. Swinging groove; 44. Pushing rod. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Example 1: As Figures 1-4 As shown, an automatic feeder for circuit boards includes an operating table 1 and a cleaning mechanism 2 disposed on the outer wall of the operating table 1. The cleaning mechanism 2 includes a sliding component 21.

[0028] The sliding assembly 21 includes a slider 213 and an adsorption head 220. A conveyor belt 11 is provided on one side of the operating table 1. A circuit board body 12 is placed on the outer wall of the operating table 1. A connection box 13 is fixedly connected to the side wall of the operating table 1. A servo motor 211 is fixedly connected to the outer wall of the connection box 13. A pulley 212 that is rotatably connected to the inner wall of the connection box 13 is fixedly connected to the output end of the servo motor 211. A slider 213 that is slidably connected to the outer wall of the connection box 13 is fixedly connected to the outer wall of the pulley 212. A connecting rod 215 is fixedly connected to one end of the slider 213. A drive motor 216 is fixedly connected to the outer wall of the connecting rod 215. The output end of the drive motor 216 is fixedly connected to... A drive threaded rod 217 is rotatably connected to the inner wall of the connecting rod 215. An adjusting block 218 is threadedly connected to the outer wall of the drive threaded rod 217 and slidably connected to the inner wall of the connecting rod 215. One end of the adjusting block 218 is fixedly connected to an adsorption head 220 that is slidably connected to the outer wall of the connecting rod 215. A collection box 221 is provided at the bottom of the operating table 1. A connecting pump 222 is provided on the outer wall of the collection box 221. A connecting pipe 223 that is fixedly connected to the outer wall of the adsorption head 220 is fixedly connected to the outer wall of the connecting pump 222. A drawer 224 is slidably connected to the outer wall of the collection box 221. A limiting block 225 that is slidably connected to the inner wall of the collection box 221 is fixedly connected to the outer wall of the drawer 224.

[0029] Furthermore, a groove 214 is provided at the connection between the outer wall of the connecting box 13 and the slider 213. The connecting rod 215 forms a sliding structure with the connecting box 13 through the slider 213 and the groove 214, which facilitates the slider 213 to slide along the inner wall of the groove 214, thereby driving the connecting rod 215 to slide along the outer wall of the connecting box 13, and realizing the control operation of the sliding of the adsorption head 220.

[0030] Furthermore, an adjustment groove 219 is provided at the connection between the inner side wall of the connecting rod 215 and the adjustment block 218. The adsorption head 220 forms a telescopic structure with the connecting rod 215 through the adjustment block 218 and the adjustment groove 219. This facilitates the sliding of the adjustment block 218 along the inner wall of the adjustment groove 219, and drives the adsorption head 220 to extend and retract along the outer wall of the connecting rod 215, thereby realizing convenient control operation for collecting and processing dust adhering to the surface of circuit boards of different sizes.

[0031] Furthermore, a limiting groove 226 is provided at the connection between the inner side wall of the collection box 221 and the limiting block 225. Two sets of limiting blocks 225 are provided, and the positions of the two sets of limiting blocks 225 are symmetrical about the central axis of the drawer 224. The drawer 224 forms a sliding structure with the collection box 221 through the limiting blocks 225 and the limiting groove 226, which facilitates the sliding of the limiting blocks 225 along the inner wall of the limiting groove 226, and drives the drawer 224 to slide out along the outer wall of the collection box 221, thereby facilitating the collection of dust.

[0032] Example 2: Figure 1 , Figure 5 and Figure 6 As shown, the automatic feeder for circuit boards proposed in this utility model, compared with Embodiment 1, is another embodiment of this utility model. A micro motor 3 is fixedly connected to the outer wall of the operating platform 1. A sliding threaded rod 31, rotatably connected to the inner wall of the operating platform 1, is fixedly connected to the output end of the micro motor 3. A connecting block 32, slidably connected to the inner wall of the operating platform 1, is threadedly connected to the outer wall of the sliding threaded rod 31. A sliding rod 35 is slidably connected to the outer wall of the operating platform 1. A rotating rod 34, rotatably connected to one end of the sliding rod 35, is rotatably connected to the outer wall of the connecting block 32. A clamping rod 37, located on one side of the circuit board body 12, is fixedly connected to one end of the sliding rod 35. A swing rod 39 is rotatably connected to the outer wall of the operating platform 1. A fixed rod 38, fixedly connected to the outer wall of the clamping rod 37, is slidably connected to the outer wall of the swing rod 39. A telescopic block 41, slidably connected to the outer wall of the operating platform 1, is slidably connected to one end of the telescopic block 41, located on one side of the circuit board body 12. In operation, the push rod 44 facilitates the simultaneous pushing of the circuit board after the dust adhering to the surface of the circuit board is adsorbed. To improve the effect of simultaneously pushing the circuit board while releasing the clamping rod 37, the micro motor 3 can be activated. The rotation of the sliding threaded rod 31 drives the connecting block 32 to slide along the inner wall of the connecting groove 33, thereby driving the rotating rod 34 to rotate. The movement of the rotating rod 34 drives the sliding rod 35 to slide along the inner wall of the sliding groove 36, thus causing the clamping rod 37 to clamp and fix the circuit board body 12. When the clamping rod 37 slides back, the fixed rod 38 slides along the outer wall of the swing rod 39 through the connection of the fixed rod 38, thereby driving the swing rod 39 to rotate. The movement of the swing rod 39, through the connection of the swing groove 43, drives the telescopic block 41 to slide along the inner wall of the telescopic groove 42, thereby driving the push rod 44 to push the adsorbed circuit board body 12. This achieves convenient control operation for simultaneously pushing the adsorbed circuit board after release.

[0033] Furthermore, a connecting groove 33 is provided at the connection between the inner wall of the operating table 1 and the connecting block 32. Two sets of rotating rods 34 are provided, and the positions of the two sets of rotating rods 34 are symmetrical about the central axis of the operating table 1. The connecting block 32 forms a sliding structure with the connecting groove 33 through the sliding threaded rod 31, which is conducive to the rotation of the sliding threaded rod 31 driving the connecting block 32 to slide along the inner wall of the connecting groove 33, thereby realizing the control operation of the rotation of the rotating rod 34.

[0034] Furthermore, a sliding groove 36 is provided at the connection between the outer wall of the operating table 1 and the sliding rod 35. Two sets of clamping rods 37 are provided, and the positions of the two sets of clamping rods 37 are symmetrical about the central axis of the circuit board body 12. The clamping rods 37 form a clamping structure with the circuit board body 12 through the sliding rod 35 and the sliding groove 36. This facilitates the sliding rod 35 to slide along the inner wall of the sliding groove 36, thereby driving the clamping rods 37 to clamp and fix the circuit board body 12, and realizing the control operation of adsorbing and stabilizing the dust adhering to the surface of the circuit board body 12.

[0035] Furthermore, a fixing groove 40 is provided at the connection between the outer wall of the swing rod 39 and the fixed rod 38, a telescopic groove 42 is provided at the connection between the outer wall of the operating table 1 and the telescopic block 41, and a swing groove 43 is provided at the connection between the outer wall of the swing rod 39 and the telescopic block 41. Two sets of push rods 44 are provided, and the positions of the two sets of push rods 44 are symmetrical about the central axis of the circuit board body 12. The push rods 44 form a push structure with the circuit board body 12 through the telescopic block 41 and the telescopic groove 42, which facilitates the sliding of the telescopic block 41 along the inner wall of the telescopic groove 42, driving the push rods 44 to push the circuit board body 12, realizing the convenient control operation of synchronously pushing after the adsorbed circuit board is released.

[0036] Working Principle: When using this type of automatic circuit board feeder, firstly, to improve the convenience of adsorbing dust adhering to the surface of the circuit board and to adjust the adsorption effect for circuit boards of different sizes, and to improve the convenience of processing the collected dust, the servo motor 211 can be turned on to drive the slider 213 to slide along the inner wall of the slide groove 214 through the rotation of the pulley 212, thereby driving the connecting rod 215 to slide. Then, the drive motor 216 can be turned on to drive the adjustment block 218 to slide along the inner wall of the adjustment groove 219 through the rotation of the drive threaded rod 217, thereby driving the adsorption head 220 to extend and retract along the outer wall of the connecting rod 215, which can facilitate the adsorption of dust adhering to the surface of the circuit board body 12. Then, the limit block 225 slides along the inner wall of the limit groove 226, which can drive the drawer 224 to slide out along the outer wall of the collection box 221, which can facilitate the processing of the collected dust, thus realizing the convenient control operation for collecting and processing dust adhering to the surface of circuit boards of different sizes.

[0037] Finally, after the dust adhering to the surface of the circuit board is adsorbed, in order to improve the effect of simultaneously pushing the circuit board while releasing the clamping rod 37, the micro motor 3 can be turned on. The rotation of the sliding threaded rod 31 drives the connecting block 32 to slide along the inner wall of the connecting groove 33, thereby driving the rotating rod 34 to rotate. The movement of the rotating rod 34 drives the sliding rod 35 to slide along the inner wall of the sliding groove 36, thereby driving the clamping rod 37 to clamp and fix the circuit board body 12. When the clamping rod 37 slides back, the fixed rod 38 slides along the outer wall of the swing rod 39 through the connection of the fixed rod 38, thereby driving the swing rod 39 to rotate. The movement of the swing rod 39 drives the telescopic block 41 to slide along the inner wall of the telescopic groove 42 through the connection of the swing groove 43, thereby driving the pushing rod 44 to push the adsorbed circuit board body 12, realizing the convenient control operation of simultaneously pushing the adsorbed circuit board after release.

[0038] This is the working principle of this type of automatic feeder for circuit boards.

[0039] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. An automatic feeder for circuit boards, comprising an operating table (1) and a cleaning mechanism (2) disposed on the outer wall of the operating table (1), characterized in that, The cleaning mechanism (2) includes a sliding component (21); The sliding assembly (21) includes a slider (213) and an adsorption head (220). A conveyor belt (11) is provided on one side of the operating table (1). A circuit board body (12) is placed on the outer wall of the operating table (1). A connection box (13) is fixedly connected to the side wall of the operating table (1). A servo motor (211) is fixedly connected to the outer wall of the connection box (13). A pulley (212) that is rotatably connected to the inner wall of the connection box (13) is fixedly connected to the output end of the servo motor (211). A slider (213) that is slidably connected to the outer wall of the connection box (13) is fixedly connected to the outer wall of the pulley (212). A connecting rod (215) is fixedly connected to one end of the slider (213). A drive motor (216) is fixedly connected to the outer wall of the connecting rod (215). The output end of the drive motor (216) is... A drive threaded rod (217) is fixedly connected to the inner wall of the connecting rod (215). An adjusting block (218) is threadedly connected to the outer wall of the drive threaded rod (217) and slidably connected to the inner wall of the connecting rod (215). One end of the adjusting block (218) is fixedly connected to an adsorption head (220) that is slidably connected to the outer wall of the connecting rod (215). A collection box (221) is provided at the bottom of the operating table (1). A connecting pump (222) is provided on the outer wall of the collection box (221). A connecting pipe (223) is fixedly connected to the outer wall of the connecting pump (222) and fixedly connected to the outer wall of the adsorption head (220). A drawer (224) is slidably connected to the outer wall of the collection box (221). A limiting block (225) is fixedly connected to the outer wall of the drawer (224) and slidably connected to the inner wall of the collection box (221).

2. The automatic feeder for circuit boards according to claim 1, characterized in that, A micro motor (3) is fixedly connected to the outer wall of the operating table (1). The output end of the micro motor (3) is fixedly connected to a sliding threaded rod (31) that is rotatably connected to the inner wall of the operating table (1). The outer wall of the sliding threaded rod (31) is threadedly connected to a connecting block (32) that is slidably connected to the inner wall of the operating table (1). A slide rod (35) is slidably connected to the outer wall of the operating table (1). The outer wall of the connecting block (32) is rotatably connected to a rotating rod (34) that is rotatably connected to one end of the slide rod (35). One end of the 35) is fixedly connected to a clamping rod (37) located on one side of the circuit board body (12). The outer wall of the operating table (1) is rotatably connected to a swing rod (39). The outer wall of the swing rod (39) is slidably connected to a fixing rod (38) fixedly connected to the outer wall of the clamping rod (37). The outer wall of the swing rod (39) is slidably connected to a telescopic block (41) slidably connected to the outer wall of the operating table (1). One end of the telescopic block (41) is fixedly connected to a push rod (44) located on one side of the circuit board body (12).

3. The automatic feeder for circuit boards according to claim 1, characterized in that, The outer wall of the connecting box (13) and the connecting part of the slider (213) are provided with a groove (214).

4. The automatic feeder for circuit boards according to claim 1, characterized in that, An adjustment groove (219) is provided at the connection between the inner side wall of the connecting rod (215) and the adjustment block (218).

5. An automatic feeder for circuit boards according to claim 1, characterized in that, The inner wall of the collection box (221) is provided with a limiting groove (226) at the connection between it and the limiting block (225). There are two sets of limiting blocks (225), and the positions of the two sets of limiting blocks (225) are symmetrical about the central axis of the drawer (224).

6. An automatic feeder for circuit boards according to claim 2, characterized in that, The inner wall of the operating table (1) is provided with a connecting groove (33) at the connection part of the connecting block (32). There are two sets of rotating rods (34), and the positions of the two sets of rotating rods (34) are symmetrical about the central axis of the operating table (1).

7. An automatic feeder for circuit boards according to claim 2, characterized in that, The outer wall of the operating table (1) is provided with a sliding groove (36) at the connection between it and the slide rod (35). There are two sets of clamping rods (37), and the positions of the two sets of clamping rods (37) are symmetrical about the central axis of the circuit board body (12).

8. An automatic feeder for circuit boards according to claim 2, characterized in that, A fixing groove (40) is provided at the connection between the outer wall of the swing rod (39) and the fixed rod (38). A telescopic groove (42) is provided at the connection between the outer wall of the operating table (1) and the telescopic block (41). A swing groove (43) is provided at the connection between the outer wall of the swing rod (39) and the telescopic block (41). Two sets of push rods (44) are provided, and the positions of the two sets of push rods (44) are symmetrical about the central axis of the circuit board body (12).

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