An automated fixture for PCB board production

Abstract

This invention discloses an automated fixture for PCB board production, relating to the field of printed circuit board manufacturing technology. The invention includes a base plate, with a mounting plate slidably connected to its top. An intermittent limiting component is disposed inside the base plate, and a limiting release component is disposed inside the mounting plate. The intermittent limiting component includes a groove, with the groove located at the center of the top of the base plate. A mounting post is slidably connected to the lower part of the groove inside the base plate. Two sets of sliders are symmetrically slidably connected to the left and right sides inside the mounting post, with two sliders in each set, symmetrically arranged front and back inside the mounting post. This invention intermittently limits the mounting plate on which the PCB board is fixed, ensuring the alignment of solder points on the PCB board with the soldering gun. This makes operation more convenient and faster, and the limiting is stable, guaranteeing the production quality of the PCB board. It can meet the lead positioning and soldering requirements of different and various types of PCB boards, improving the practicality of the device.

Description

Technical Field

[0001] The present invention relates to the technical field of printed circuit manufacturing, and in particular to an automated jig for producing PCB boards. Background Art

[0002] PCB board, whose Chinese name is printed circuit board, is an important electronic component. It is the support body of electronic components and the carrier of electrical connection of electronic components. After the electronic components are welded on the PCB board, in order to facilitate the electrical connection and installation of the PCB board, it is also necessary to weld the leads at the edge of the PCB board. In order to ensure the accurate welding of the leads, the PCB board needs to be pushed accurately and stably to align the welding point with the welding gun. Therefore, when welding the leads, it is necessary to use an automated fixture to place the PCB board.

[0003] However, the existing automated jigs for PCB production still have the following defects during use:

[0004] 1. When placing a PCB board, the existing automated fixture can only push the PCB board, and cannot perform intermittent limit according to the distribution of the welding points. It can only be observed and aligned based on the operator's experience. The operation is difficult and prone to misalignment, which reduces the quality of production. For some intermittent limit methods using elastic limit pins, after long-term reciprocating push, the wear caused by the limit pins will reduce the limiting ability of the limit pins, and the PCB board is not stably limited when stopped, and displacement is still easy to occur during welding, resulting in inaccurate welding.

[0005] 2. When producing different PCB boards, the spacing between soldering points on different PCB boards is different, and there may be soldering points with different spacing on the same PCB board. However, the existing automated jigs for PCB board production cannot adjust the intermittent limit positions according to the different spacing between soldering points, or can only adjust the equal spacing. Therefore, it cannot meet the needs of different PCB boards, reducing the practicality of use. Summary of the invention

[0006] The purpose of the present invention is to solve the above-mentioned problems that intermittent limiting cannot be performed according to the distribution of welding points, the operation is difficult, the PCB board is not stably limited when stopped, displacement is still easy to occur during welding, the production quality is reduced, the intermittent limiting position cannot be adjusted according to the different spacings of welding points, or only equal spacing can be adjusted, so different PCB boards cannot be satisfied, and the practicality of use is reduced. The present invention provides an automatic jig for PCB board production.

[0007] In order to achieve the above-mentioned purpose, the present invention specifically adopts the following technical solutions:

[0008] An automated jig for PCB board production, comprising a bottom plate, a mounting plate is slidably connected to the top of the bottom plate, an intermittent limit assembly is arranged inside the bottom plate, and a limit release assembly is arranged inside the mounting plate;

[0009] The intermittent limit assembly comprises a slide slot, a slide slot is opened in the center of the top of the bottom plate, a mounting column is slidingly connected to the bottom of the slide slot inside the bottom plate, and two groups of slide blocks are symmetrically and slidably connected to the left and right sides of the mounting column, and the number of slide blocks in a single group is two, and they are symmetrical front and back inside the mounting column, and a telescopic assembly is arranged between the lower parts of the two slide blocks on the right side of the mounting column, and a cross rod is arranged between adjacent mounting columns, as well as on the left side of the leftmost mounting column and on the right side of the rightmost mounting column, and a side of the cross rod close to the mounting column is hinged to the slide blocks symmetrically distributed front and back inside the mounting column, and a column is fixedly installed at the top of the hinged part in the middle of the cross rod, and the column is slidingly connected to the bottom plate in a limited manner, and a limiting block is fixedly installed on the top of the column, and the limiting block is located inside the slide slot, and the middle part of the top of the limiting block is elastically slidably connected to the limiting column.

[0010] Furthermore, the intermittent limit assembly also includes a threaded sleeve, the left end of the leftmost cross rod is hinged with a threaded sleeve, the internal limit rotation of the base plate is connected with a threaded rod, the threaded rod passes through the two threaded sleeves at the left end of the cross rod and engages with the threaded sleeves, and the threads engaged with the two threaded sleeves on the front and rear sides of the threaded rod are opposite, so that during the rotation of the threaded rod, the threaded sleeves on both sides can be driven to move away from or towards each other, the threaded rod extends forward to the front side of the base plate, and a knob is fixedly installed at the front end of the threaded rod to facilitate driving the threaded rod to rotate.

[0011] Furthermore, a clamping plate is provided on the top of the mounting plate, and the clamping plate is used for clamping and fixing the PCB board on the mounting plate.

[0012] Furthermore, the left side of the slider located on the right side of the mounting column is elastically slidably connected to a limit pin, and the right side of the slider located on the left side of the mounting column is provided with a semicircular groove, and the limit pin is adapted to the semicircular groove, so that elastic limitation can be generated between the sliders on the left and right sides of the mounting column.

[0013] The top of the rotary shaft is provided with a gear, and the gear is fixedly mounted on the bottom end of the rotary shaft, and a knob 2 is fixedly mounted on the bottom end of the rotary shaft for driving the rotary shaft to rotate. The knob 2 is fixedly mounted on the bottom end of the rotary shaft for driving the rotary shaft to rotate. The knob 2 is fixedly mounted on the bottom end of the rotary shaft for driving the rotary shaft to rotate. The rotary shaft is provided with a threaded portion in the port area at the bottom of the rotary shaft, and a fastening nut is connected to the fastening nut on the outer side of the rotary shaft thread, so that the fastening nut can squeeze and limit the rotation of the rotary shaft.

[0014] Furthermore, a bottom groove is provided below the second knob at the bottom end of the bottom plate, so as to facilitate operation of the second knob from below the bottom plate.

[0015] The cam is fixedly mounted on the support frame, and the cam is secured on a central surface of the bottom surface of the support frame, wherein the cam is secured on a central surface of the bottom surface of the support frame.

[0016] Furthermore, the clamping block is limitedly slidably connected inside the slide slot, and a notch is provided at the bottom of the clamping block and is matched with the bottom of the limiting block, so as to facilitate the sleeve connection between the clamping block and the limiting block.

[0017] Furthermore, bevel grooves are provided on the left and right sides of the clamping block recess, so that the limiting column can slide into the clamping block during movement, and the limiting column is adapted to the circular hole so that the limiting column can extend upward to the inside of the circular hole to complete the limiting.

[0018] Furthermore, in the initial state, the eccentric extension of the eccentric wheel is attached to the top end surface of the trigger plate, so that during the rotation of the eccentric wheel, the trigger plate can be pushed to move downward.

[0019] The beneficial effects of the present invention are as follows:

[0020] 1. The present invention, through the coordinated design of the intermittent limit assembly in the bottom plate and the limit release assembly in the mounting plate, can intermittently limit the mounting plate on which the PCB board is fixed in the process of pushing the mounting plate to move, so as to meet the one-to-one alignment of the welding points on the PCB board and the welding gun, and the operation is more convenient and quick. At the same time, when limiting, the limit is stable, and the limit is released after the welding is completed, thereby avoiding the displacement generated during welding, improving the accuracy of welding, and ensuring the production quality of the PCB board.

[0021] 2. The present invention, through the cooperation between the limit pin in the intermittent limit assembly and the clamping block at the bottom of the mounting plate, and the design of the telescopic assembly in the intermittent limit assembly, can achieve equal adjustment of the limit position to meet the needs of different PCB boards, and can also achieve unequal adjustment of the limit position to meet the needs of PCB boards with different spacing distributions of welding points, thereby meeting the lead positioning welding of different and multiple types of PCB boards, thereby improving the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 The three-dimensional structure of the present invention is shown in FIG. Figure 1 ;

[0023] Figure 2 The three-dimensional structure of the present invention is shown in FIG. Figure 2 ;

[0024] Figure 3 It is an exploded view of the three-dimensional structure of the present invention;

[0025] Figure 4 It is a schematic diagram of a partially cutaway three-dimensional structure of the present invention;

[0026] Figure 5 The present invention Figure 4 A magnified view of the structure at center;

[0027] Figure 6 It is a schematic diagram of the three-dimensional structure of the intermittent limit assembly of the present invention;

[0028] Figure 7 It is a schematic diagram of a partial three-dimensional structure of the intermittent limit assembly of the present invention;

[0029] Figure 8 It is a schematic diagram of a partially cutaway three-dimensional structure of an intermittent limit assembly of the present invention;

[0030] Fig. 9 The local three-dimensional structure explosion of the intermittent limit assembly of the present invention Figure 1 ;

[0031] Fig.10 The local three-dimensional structure explosion of the intermittent limit assembly of the present invention Figure 2 ;

[0032] Fig.11 It is a schematic diagram of the three-dimensional structure of the slider and the telescopic assembly of the present invention;

[0033] Fig.12 It is a schematic diagram of the cross-sectional three-dimensional structure of the mounting column of the present invention;

[0034] Fig.13 It is a schematic diagram of the three-dimensional structure of the mounting plate of the present invention;

[0035] Fig.14 It is a schematic diagram of the cross-sectional three-dimensional structure of the mounting plate of the present invention;

[0036] Fig.15 The present invention Fig.14 Enlarged view of the structure at point B in the middle.

[0037] 1. Bottom plate; 2. Mounting plate; 21. Clamp; 3. Intermittent limit assembly; 31. Slide; 32. Mounting column; 33. Sliding block; 331. Limit pin; 332. Semicircular groove; 34. Telescopic assembly; 341. Offset gear rod; 342. Rotating shaft; 343. Gear; 344. Knob 2; 345. Fastening nut; 35. Cross rod; 36. Column; 37. Limit block; 38. Limit column; 39. Threaded sleeve; 310. Threaded rod; 311. Knob 1; 4. Limit release assembly; 41. Clamp; 411. Round hole; 42. Lifting plate; 43. Spring; 44. Push rod; 45. Trigger plate; 46. Rotating rod; 47. Eccentric wheel; 48. Turning handle. DETAILED DESCRIPTION

[0038] To make the purpose, technical solution and advantages of the embodiments of the present invention more clear, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0039] An automated jig for PCB board production according to a preferred embodiment of the present invention will be described in detail below. Figure 1-Figure 4 As shown, an automated jig for PCB board production includes a base plate 1, the top of the base plate 1 is limitedly and slidably connected to a mounting plate 2, a clamping plate 21 is provided on the top of the mounting plate 2, the clamping plate 21 is used to clamp and fix the PCB board on the mounting plate 2, an intermittent limit assembly 3 is provided inside the base plate 1, and a limit release assembly 4 is provided inside the mounting plate 2.

[0040] When welding the edge leads of the PCB board, the base plate 1 is first fixedly installed on the workbench below the welding gun, and then the PCB board is limited and fixed on the mounting plate 2 by the clamping plate 21. The mounting plate 2 is connected to the mounting plate 2 on the top of the base plate 1 by sliding. The mounting plate 2 can be pushed above the base plate 1. In the pushing process, the design of the intermittent limit component 3 inside the base plate 1 can be used to intermittently limit the mounting plate 2, so that the welding points on the PCB board are aligned with the welding gun one by one to complete the welding. The design of the limit release component 4 inside the mounting plate 2 can release the limit on the mounting plate 2 after welding is completed, so that the next welding point is aligned with the welding gun. At the same time, the design of the intermittent limit component 3 can also adjust the intermittent limit position according to the different spacings between welding points on different PCB boards and welding points with different spacings on the same PCB board.

[0041] Furthermore, if Figure 4 , Figure 6-Figure 10 As shown, the intermittent limit assembly 3 includes a slide groove 31, a slide groove 31 is opened in the center of the top of the base plate 1, and a mounting column 32 is slidingly connected to the lower portion of the slide groove 31 inside the base plate 1, and two groups of sliders 33 are symmetrically slidingly connected to the left and right sides of the mounting column 32, and the number of a single group of sliders 33 is two, and they are symmetrical front to back inside the mounting column 32, and the left side of the slider 33 located on the right side of the mounting column 32 is elastically slidingly connected to a limit pin 331, and the right side of the slider 33 located on the left side of the mounting column 32 is opened with a semicircular groove 332, and the limit pin 331 is adapted to the semicircular groove 332, so that elastic limitation can be generated between the sliders 33 on the left and right sides of the mounting column 32.

[0042] A telescopic assembly 34 is provided between the lower parts of the two right side slide blocks 33 inside the mounting column 32, and a cross rod 35 is provided between adjacent mounting columns 32, and on the left side of the leftmost mounting column 32 and on the right side of the rightmost mounting column 32. The side of the cross rod 35 close to the mounting column 32 is hinged to the slide blocks 33 symmetrically distributed front and back inside the mounting column 32, and a column 36 is fixedly installed on the top of the middle hinge of the cross rod 35. The column 36 is limitedly slidably connected inside the bottom plate 1, and a limit block 37 is fixedly installed on the top of the column 36. The limit block 37 is located inside the slide groove 31, and the middle part of the top of the limit block 37 is elastically slidably connected to the limit column 38.

[0043] The intermittent limit assembly 3 also includes a threaded sleeve 39, the left end of the leftmost cross rod 35 is hinged with the threaded sleeve 39, and the internal limit rotation connection of the base plate 1 is connected with a threaded rod 310, the threaded rod 310 passes through the two threaded sleeves 39 at the left end of the cross rod 35, and meshes with the threaded sleeves 39, and the threads meshed with the two threaded sleeves 39 on the front and rear sides of the threaded rod 310 are opposite, so that during the rotation of the threaded rod 310, the threaded sleeves 39 on both sides can be driven to move away from or towards each other, the threaded rod 310 extends forward to the front side of the base plate 1, and a knob 311 is fixedly installed at the front end of the threaded rod 310 to facilitate driving the threaded rod 310 to rotate.

[0044] The principle of adjusting the equal intermittent limit position according to the different spacings of the soldering points on different PCB boards is as follows:

[0045] When it is necessary to adjust the intermittent limit position to an equal level, the threaded rod 310 is driven to rotate by turning the knob 311. During the rotation of the threaded rod 310, the threaded rod 310 is meshed with the two threaded sleeves 39 on the front and rear sides. The design of the threaded rod 310 having opposite threads on the front and rear sides can make the two threaded sleeves 39 on the front and rear sides move away from or towards each other, thereby driving the cross rod 35 to rotate crosswise.

[0046] During the cross rotation of the cross rod 35, the sliding connection of the adjacent side sliders 33 of the cross rod 35 inside the mounting column 32, as well as the limiting pins 331 and the semicircular grooves 332 between the left and right sliders 33 inside the mounting column 32, can make the sliders 33 on the left and right sides of the mounting column 32 move synchronously, thereby making the left and right distributed cross rods 35 synchronously cross rotate, so as to make the column 36 at the top of the middle hinge of the cross rod 35 equidistantly contract or expand inside the base plate 1, thereby driving the limiting block 37 to contract or expand equidistantly in the slide groove 31, and utilizing the cooperation limiting of the limiting column 38 on the limiting block 37 and the mounting plate 2 to achieve equal intermittent limit position adjustment to meet the needs of different PCB boards.

[0047] Furthermore, if Figure 8 , Figure 11-Figure 12As shown, the telescopic assembly 34 includes a staggered gear rod 341, and the staggered gear rod 341 is slidably connected to the bottom of the mounting column 32. The staggered gear rod 341 is composed of two gear rods that are staggered and have teeth facing each other, and the two gear rods are respectively fixedly installed with two sliders 33 on the right side of the mounting column 32, so that the staggered gear rod 341 can drive the two sliders 33 on the right side of the mounting column 32 to move. The bottom of the mounting column 32 is limitedly rotatably connected to a rotating shaft 342, and a gear 343 is fixedly installed on the periphery of the top of the rotating shaft 342. The gear 343 is located on the staggered gear rod 341 The two gear rods are meshed with each other, so that during the rotation of the gear 343, the two gear rods of the offset gear rod 341 can be offset and moved. The rotating shaft 342 extends downward to the lower side of the mounting post 32, and a knob 2 344 is fixedly installed at the bottom end of the rotating shaft 342 to facilitate driving the rotating shaft 342 to rotate. The rotating shaft 342 is provided with a thread at the port area at the bottom of the mounting post 32, and the outer side of the thread of the rotating shaft 342 is connected to a fastening nut 345, so that the fastening nut 345 can squeeze and limit the rotation of the rotating shaft 342.

[0048] A bottom groove 11 is provided below the second knob 344 at the bottom end of the bottom plate 1 to facilitate operation of the second knob 344 from below the bottom plate 1 .

[0049] The principle of adjusting the limit position according to the distribution of different spacings of solder points on the PCB is as follows:

[0050] First, when adjusting the equal intermittent limit position, it is necessary to loosen all the fastening nuts 345 first to release the limit on the rotating shaft 342. After the adjustment is completed, tighten the fastening nuts 345 to limit the rotating shaft 342 and the gear 343, and then limit the slider 33 in the mounting column 32 to ensure the stability of the intermittent limit of the mounting plate 2 by the limit block 37.

[0051] When it is necessary to limit the movement of the PCB board at unequal intervals, when adjusting the limit position, the fastening nut 345 at the left side where the limit adjustment is required is loosened first according to the distribution of the welding points on the PCB board, and the rest are kept in the limited state, and then the position of the loosened position limit block 37 is adjusted by turning the knob 1 311. During the adjustment process, when the fastening nut 345 is kept in the limited position, the right slider 33 in the mounting column 32 will not move, and the left slider 33 will overcome the friction between the sliders 33 to slide. Therefore, the cross rod 35 on the right side of the limit position maintained by the fastening nut 345 will not follow the cross rotation, thereby completing the spacing adjustment of the local limit position on the left side, and then tighten the fastening nut 345 after the adjustment is completed.

[0052] Then, the fastening nut 345 at the limit position that needs to be adjusted is loosened, and the rotating shaft 342 is driven to rotate by turning the second knob 344. During the rotation of the rotating shaft 342, the outer gear 343 at the top of the rotating shaft 342 is engaged with the gear rods on both sides of the offset gear rod 341, thereby driving the right slider 33 in the mounting column 32 to move away from or towards each other, thereby driving the cross rod 35 to rotate crosswise, so as to complete the spacing adjustment of the subsequent local limit positions, and then realize the adjustment of unequal limit positions to meet the PCB boards with different spacing distributions of welding points.

[0053] Furthermore, if Figure 3-Figure 5 , Figure 13-Figure 15 The limit release assembly 4 shown includes a clamp block 41, which is fixedly installed in the center of the bottom end of the mounting plate 2. The clamp block 41 is slidably connected to the inside of the slide groove 31, and a recess is provided at the bottom of the clamp block 41, which is adapted to the bottom of the limit block 37 to facilitate the socket connection between the clamp block 41 and the limit block 37.

[0054] A circular hole 411 is provided in the middle of the clamp block 41, and chamfers are provided on the left and right sides of the notch of the clamp block 41, so that the limiting column 38 can slide into the inside of the clamp block 41 during movement, and the limiting column 38 is adapted to the circular hole 411, so that the limiting column 38 can extend upward to the inside of the circular hole 411 to complete the limiting process.

[0055] A lifting plate 42 is connected to the upper limit sliding position of the circular hole 411 inside the mounting plate 2, and a spring 43 is fixedly connected between the top of the lifting plate 42 and the inner wall of the mounting plate 2. A push rod 44 is fixedly installed in the center of the bottom end of the lifting plate 42, and the push rod 44 is slidably connected to the inside of the circular hole 411. A trigger plate 45 is connected to the left end of the lifting plate 42 inside the mounting plate 2 in a limit sliding position. The trigger plate 45 and the lifting plate 42 are fixedly installed so that the trigger plate 45 can drive the lifting plate 42 to move synchronously up and down. A rotating rod 46 is connected to the upper limit rotation position of the trigger plate 45 inside the mounting plate 2, and an eccentric wheel 47 is fixedly installed on the outer periphery of the rotating rod 46 above the trigger plate 45. In the initial state, the eccentric extension of the eccentric wheel 47 is attached to the top end surface of the trigger plate 45, so that the trigger plate 45 can be pushed to move downward during the rotation of the eccentric wheel 47.

[0056] The rotating rod 46 extends leftward to the left side of the mounting plate 2 , and a turning handle 48 is fixedly mounted on the left end of the rotating rod 46 to facilitate driving the rotating rod 46 to rotate.

[0057] The principle that the upper limit column 38 of the limit block 37 is used to limit the mounting plate 2 and the limit release assembly 4 can release the limit is as follows:

[0058] When the mounting plate 2 is pushed above the base plate 1, by utilizing the cooperation between the upper limit column 38 on the limit block 37 and the circular hole 411 in the middle of the clamping block 41, the limit column 38 can extend upward to the inside of the circular hole 411, thereby stably limiting the clamping block 41 and the mounting plate 2 for welding.

[0059] After welding is completed, the turning handle 48 is bent downward on the left side of the mounting plate 2, and the eccentric wheel 47 is driven to rotate downward through the turning rod 46. During the rotation of the eccentric wheel 47, the cooperation between the eccentric wheel 47 and the trigger plate 45 is utilized to push the trigger plate 45 to move downward, and the fixed installation of the trigger plate 45 and the lifting plate 42 is utilized to drive the lifting plate 42 to stretch the spring 43 to move downward, thereby driving the push rod 44 to move downward in the circular hole 411, so that the push rod 44 can push the limiting column 38 extending into the circular hole 411 downward, thereby releasing the limiting position between the limiting column 38 and the clamping block 41, and thereby pushing the mounting plate 2 to the next limiting position. At the same time, after releasing the turning handle 48, the lifting plate 42 will move upward under the action of the spring 43, so that the push rod 44 can move upward in the circular hole 411, so that the limiting column 38 can limit the clamping block 41 and the mounting plate 2 again.

[0060] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An automated jig for PCB production, comprising a base plate (1), characterized in that: The top of the bottom plate (1) is limitedly slidably connected to a mounting plate (2), a clamping plate (21) is provided on the top of the mounting plate (2), and the clamping plate (21) is used to clamp and fix the PCB board on the mounting plate (2), an intermittent limit assembly (3) is provided inside the bottom plate (1), and a limit release assembly (4) is provided inside the mounting plate (2); Wherein, the intermittent limit assembly (3) comprises: A slide groove (31), wherein a slide groove (31) is provided at the center of the top of the bottom plate (1); A mounting column (32), the mounting column (32) being connected to the bottom of the inner slide groove (31) of the bottom plate (1) in a limited sliding manner; Slide blocks (33), two groups of slide blocks (33) are symmetrically limited and slidably connected on the left and right sides of the interior of the mounting column (32), and the number of slide blocks (33) in a single group is two, and they are symmetrical front and back inside the mounting column (32); A telescopic component (34), wherein a telescopic component (34) is disposed between the lower sides of the two right sliding blocks (33) inside the mounting column (32); A cross rod (35) is provided between adjacent mounting posts (32), and on the left side of the leftmost mounting post (32) and on the right side of the rightmost mounting post (32), and the side of the cross rod (35) close to the mounting post (32) is hinged to a slider (33) symmetrically distributed frontward and rearward inside the mounting post (32); A column (36), the top end of the middle hinge of the cross bar (35) is fixedly mounted with the column (36), and the column (36) is slidably connected to the inside of the bottom plate (1) in a limited position; A limit block (37), the limit block (37) being fixedly mounted on the top of the column (36), and the limit block (37) being located inside the slide groove (31); A limiting column (38), wherein the middle portion of the top of the limiting block (37) is elastically slidably connected to the limiting column (38); The left side of the sliding block (33) located on the right side inside the mounting column (32) is elastically slidably connected to a limit pin (331), and the right side of the sliding block (33) located on the left side inside the mounting column (32) is provided with a semicircular groove (332), and the limit pin (331) is matched with the semicircular groove (332).

2. The automated jig for PCB board production according to claim 1, characterized in that: The intermittent limiting component (3) further comprises: A threaded sleeve (39), the left end of the leftmost cross rod (35) being hingedly connected to the threaded sleeve (39); A threaded rod (310), the bottom plate (1) is internally limited and rotatably connected to the threaded rod (310), the threaded rod (310) passes through two threaded sleeves (39) at the left end of the cross rod (35) and meshes with the threaded sleeves (39), and the threads meshing with the two threaded sleeves (39) on the front and rear sides of the threaded rod (310) are opposite; Knob one (311), the threaded rod (310) extends forward to the front side of the bottom plate (1), and the front end of the threaded rod (310) is fixedly mounted with knob one (311).

3. The automated jig for PCB production according to claim 1, characterized in that: The telescopic assembly (34) comprises: An offset gear rod (341), wherein the bottom of the mounting column (32) is internally slidably connected with the offset gear rod (341), wherein the offset gear rod (341) is composed of two gear rods that are offset from each other and whose teeth are opposite to each other, and the two gear rods are respectively fixedly mounted on two sliders (33) on the right side of the mounting column (32); A rotating shaft (342), the bottom of the mounting column (32) being rotationally connected to the rotating shaft (342); A gear (343), wherein the gear (343) is fixedly mounted on the periphery of the top of the rotating shaft (342), and the gear (343) is located between the two gear rods of the offset gear rod (341) and meshes with the two gear rods; Knob 2 (344), the rotating shaft (342) extends downward to the lower side of the mounting column (32), and the bottom end of the rotating shaft (342) is fixedly mounted with knob 2 (344); A fastening nut (345), wherein the rotating shaft (342) is provided with threads in the bottom port area of ​​the mounting column (32), and the fastening nut (345) is connected to the outer threads of the threads of the rotating shaft (342).

4. The automated jig for PCB board production according to claim 3, characterized in that: A bottom groove (11) is provided below the second knob (344) at the bottom end of the bottom plate (1), so as to facilitate operation of the second knob (344) from below the bottom plate (1).

5. The automated jig for PCB production according to claim 1, characterized in that: The limit release component (4) comprises: A clamping block (41), wherein the clamping block (41) is fixedly mounted at the center of the bottom end of the mounting plate (2), and a circular hole (411) is opened in the middle of the clamping block (41); A lifting plate (42), the lifting plate (42) being connected to the upper part of the circular hole (411) in the mounting plate (2) in a limited sliding manner; A spring (43), wherein a spring (43) is fixedly connected between the top of the lifting plate (42) and the inner wall of the mounting plate (2); A push rod (44), wherein a push rod (44) is fixedly mounted at the center of the bottom end of the lifting plate (42), and the push rod (44) is slidably connected inside the circular hole (411); A trigger plate (45), the left end of the lifting plate (42) inside the mounting plate (2) is limitedly slidably connected to the trigger plate (45), and the trigger plate (45) is fixedly mounted on the lifting plate (42); A rotating rod (46), the upper part of the trigger plate (45) inside the mounting plate (2) being rotationally connected to the rotating rod (46); An eccentric wheel (47), the eccentric wheel (47) being fixedly mounted on the outer periphery of the rotating rod (46) and located above the trigger plate (45); A turning handle (48), wherein the turning rod (46) extends leftward to the left side of the mounting plate (2), and the turning handle (48) is fixedly mounted on the left end of the turning rod (46).

6. The automated jig for PCB board production according to claim 5, characterized in that: The clamping block (41) is slidably connected inside the sliding groove (31) in a limited manner, and a notch is provided at the bottom of the clamping block (41) and is adapted to the bottom of the limiting block (37).

7. The automated jig for PCB production according to claim 5, characterized in that: The left and right sides of the notch of the clamping block (41) are provided with grooves, so that the limiting column (38) can slide into the inside of the clamping block (41) during the movement, and the limiting column (38) is adapted to the circular hole (411).

8. The automated jig for PCB production according to claim 5, characterized in that: In the initial state, the eccentric extension of the eccentric wheel (47) is attached to the top end surface of the trigger plate (45).

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