A jig for replacing PCB connector

Abstract

The present invention belongs to the technical field of PCB jigs, and in particular to a jig for replacing PCB connectors. Aiming at the problem of difficult positioning of the jig for replacing PCB connectors, the following scheme is proposed, including a base, gaskets are fixed by bolts on both sides of the upper surface of the base near the rear end, and support columns are fixed by bolts on the upper surfaces of the two gaskets, the same movable plate is sleeved and fixed on the circumferential outer walls of the two support columns, and a connecting rod is fixed by bolts on the upper surface of the movable plate near the middle, and a fixing ring is welded on the end of the connecting rod away from the movable plate. The present invention can move the PCB board horizontally and vertically through a translation mechanism, and can adjust the position of the PCB board in time, ensure that the jig can align with the PCB connector, accurately guide the connector pin or socket to the corresponding position, improve the stability when replacing the connector, and increase the replacement efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of PCB jigs, and in particular to a jig for replacing a PCB connector. Background Art

[0002] PCB connectors are important components in electronic devices used to connect circuit boards or between circuit boards and external devices. They play a vital role in the design and manufacture of electronic devices. PCB connectors are important bridges between electronic components, which can achieve stable connection and signal transmission between electronic components, improve the reliability and stability of the entire circuit, and at the same time, PCB connectors can also optimize the design of electronic equipment, making it more compact and thin, and improving the appearance and portability of the product. With the continuous advancement of technology, new connectors may have better performance and smaller size. In this case, replacing PCB connectors can improve the performance and compactness of the equipment.

[0003] When replacing a PCB connector, it is necessary to adjust the position of the PCB board or the position of the jig in time, and use the guiding structure provided by the jig to accurately guide the connector pin or socket to the corresponding position. Since the connecting hole between the connector and the circuit board is very small, positioning is difficult, making it difficult for the connector pin or socket to align with the pad or interface of the PCB, which greatly affects work efficiency. Summary of the invention

[0004] Based on the technical problem that it is difficult to position a conventional jig for replacing a PCB connector, the present invention proposes a jig for replacing a PCB connector.

[0005] A jig for replacing a PCB connector proposed in the present invention comprises a base, gaskets are fixed by bolts on both sides of the upper surface of the base near the rear end, and support columns are fixed by bolts on the upper surfaces of the two gaskets, the same movable plate is sleeved and fixed on the circumferential outer walls of the two support columns, and a connecting rod is fixed by bolts on the upper surface of the movable plate near the middle, and a fixing ring is welded on the end of the connecting rod away from the movable plate, a carrying cylinder is plugged and fixed on the circumferential inner wall of the fixing ring, and a lifting mechanism is plugged and fixed on the inner wall of the carrying cylinder, the lifting mechanism comprises two connecting columns, and a heating module and a positioning replacement module are respectively fixed at the bottom ends of the two connecting columns, a translation mechanism is arranged on the upper surface of the base near the front end, and the translation mechanism comprises a chassis, a fixing mechanism is arranged on the upper end of the chassis, and the fixing mechanism comprises a fixing plate.

[0006] Preferably, the lifting mechanism includes an electric push rod, the inner wall of the carrying cylinder is plugged with the electric push rod, and the bottom end of the electric push rod is fixed with a loading column, the circumferential outer wall of the loading column is sleeved with a telescopic hose, and the top of the telescopic hose is connected to the carrying cylinder, the bottom end of the loading column is fixed with a disc 2 by bolts, and the circumferential outer wall of the loading column is rotatably connected with a movable ring near the bottom end, the circumferential outer wall of the movable ring is evenly welded with a plurality of connecting blocks 1, and the lower surfaces of the plurality of connecting blocks 1 are fixed with connecting blocks 2 by bolts on the side away from the movable ring, the lower surface of the connecting block 2 is fixed with the same disc 1 by bolts, and two connecting columns are symmetrically installed on the lower surface of the disc 1 deviating from the center of the circle.

[0007] Preferably, a plurality of return springs are evenly installed on the upper surface of the disk 1 at a position deviating from the center of the circle, and thrust ball bearings are fixed to the top ends of the plurality of return springs.

[0008] Preferably, two semicircular grooves are symmetrically opened at the bottom end of the movable ring, and two semicircular protrusions are symmetrically fixed to the top end of the second disk, and the semicircular protrusions are adapted to the semicircular grooves.

[0009] Preferably, the upper surface of the movable plate is provided with penetrating circular holes near both sides, and the circular holes are adapted to the support columns. The upper surface of the movable plate is provided with a rectangular groove near the middle, and a card box is installed on the inner wall of the rectangular groove. Positioning holes are evenly provided on one side between the circumferential outer walls of the two support columns.

[0010] Preferably, two symmetrical and structurally equal movable cavities are provided on the upper surface of the card box near both sides, and a rope winding cavity is provided in the middle of the rear end of the card box, a card column is inserted into the inner wall of the movable cavity away from the rope winding cavity, and the card column and the positioning hole are adapted to each other, a baffle is fixed to the end of the card column close to the rope winding cavity by bolts, and a support spring is welded to the side of the baffle away from the card column, and the end of the support spring away from the baffle is connected to the inner wall of the movable cavity, a pull rope is fixed at the center of the side of the baffle away from the card column, and a rope winding rod is fixed to the end of the pull rope away from the baffle, a knob is welded to the rear end of the rope winding rod, and the knob passes through the movable plate.

[0011] Preferably, semicircular grooves are evenly arranged on the circumferential outer wall of the knob.

[0012] Preferably, the translation mechanism includes a support plate, and the upper surface of the base is fixed with a support plate by bolts near both sides of the front end, a circular hole is opened in the middle of one side between the two support plates, and bearings are fixed on the inner walls of the two circular holes, the circumferential inner walls of the two bearings are plugged and fixed with the same threaded rod, and the circumferential outer wall of the threaded rod is screwed with a threaded block, a sliding rod is plugged near both ends of one side between the two support plates, and the two sliding rods are slidably connected with sliders, the upper surfaces of the two sliders are fixed with the same bearing plate by bolts, and the bottom end of the bearing plate is connected to the top end of the threaded block, and the upper surface of the bearing plate is close to A supporting plate 2 is welded at both ends, and a circular hole is opened in the middle of one side between the two supporting plates, and two bearings are fixed on the inner walls of the two circular holes, the same threaded rod 2 is inserted and fixed to the circumferential inner walls of the two bearings, and a threaded block 2 is screwed on the circumferential outer wall of the threaded rod 2, a sliding rod 2 is inserted at one side near both ends between the two supporting plates, and the two sliding rods are slidably connected with a slider 2, the upper surfaces of the two sliders 2 are fixed to the same chassis by bolts, and the bottom end of the chassis is connected to the top end of the threaded block 2, one end of the threaded rod 1 and the threaded rod 2 are fixed to a rotating disk by bolts, and the rotating disk is provided with a fixing mechanism, and the fixing mechanism includes a limiting rod.

[0013] Preferably, the fixing mechanism includes a limiting rod, a limiting rod is inserted into one side of the rotating disk near the circumferential edge, and a spring sheet is welded and fixed to the circumferential outer wall of the limiting rod near the middle, a contraction spring is fixed to the side of the spring sheet close to the rotating disk, and the end of the contraction spring away from the spring sheet is connected to the rotating disk, a limiting ring is fixed on the circumferential outer wall of the limiting rod near one end, and a handle is rotatably connected to the end of the circumferential outer wall of the limiting rod away from the limiting ring, and the support plate one and the support plate two are provided with limiting holes in a circumferential array on the side close to the rotating disk, and the limiting holes are adapted to the limiting rod.

[0014] Preferably, a bearing column is welded near the center of the upper surface of the chassis, and a support tube is inserted at the top of the bearing column. A fixing plate is fixed to the top of the support tube by bolts, and fixing holes are evenly opened on the upper surface of the fixing plate. A chip storage box is sleeved on the circumferential outer wall of the bearing column near the bottom end.

[0015] The beneficial effects of the present invention are:

[0016] 1. The PCB board can be moved horizontally and vertically through the translation mechanism, and the position of the PCB board can be adjusted in time to ensure that the fixture can align with the PCB connector and accurately guide the connector pins or sockets to the corresponding positions, thereby improving the stability when replacing the connector and increasing the replacement efficiency.

[0017] 2. Through the fixing mechanism, when the limit rod is inserted into the limit hole, it can prevent the rotating disk from rotating and causing the PCB board to move when replacing the PCB connector, avoid damaging the PCB connector, and improve the safety and stability of the fixture.

[0018] 3. By setting two semicircular grooves and two semicircular protrusions, the movable ring can be accurately rotated 180 degrees, so that the positions of the heating module and the positioning replacement module can be interchanged, avoiding secondary positioning, simplifying the work process, and further improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram of the front-end structure of a jig for replacing a PCB connector proposed by the present invention;

[0020] Figure 2 A schematic diagram of the side structure of a jig for replacing a PCB connector proposed by the present invention;

[0021] Figure 3 A schematic diagram of the support column structure of a jig for replacing a PCB connector proposed by the present invention;

[0022] Figure 4 A schematic diagram of the card box structure of a jig for replacing a PCB connector proposed by the present invention;

[0023] Figure 5 A schematic diagram of the structure of a bearing cylinder of a jig for replacing a PCB connector proposed by the present invention;

[0024] Figure 6 A schematic diagram of the movable ring structure of a jig for replacing a PCB connector proposed by the present invention;

[0025] Figure 7 This is a schematic diagram of the translation mechanism structure of a jig for replacing a PCB connector proposed by the present invention;

[0026] Figure 8 A schematic diagram of the fixing mechanism structure of a jig for replacing a PCB connector proposed by the present invention.

[0027] In the figure: 1, base; 2, support plate 1; 201, limit hole; 3, support column; 301, positioning hole; 4, movable plate; 5, connecting rod; 6, electric push rod; 7, bearing tube; 8, fixing ring; 9, telescopic hose; 10, chip storage box; 11, support plate 2; 12, rotating disk; 13, gasket; 14, knob; 1401, semicircular slide groove; 15, card box; 1501, movable cavity; 1502, rope winding cavity; 16, rope winding rod; 17, pull rope; 18, baffle; 19, card column; 20, support spring; 21, loading column; 22, movable ring; 2201, semicircular groove; 23, disk 1; 24, disk 2; 2 5. Semicircular protrusion; 26. Connecting block one; 27. Connecting block two; 28. Thrust ball bearing; 29. ​​Reset spring; 30. Heating module; 31. Positioning replacement module; 32. Connecting column; 33. Slider one; 34. Threaded rod one; 35. Slider one; 36. Threaded block one; 37. Threaded rod two; 38. Bearing two; 39. Slider two; 40. Bearing one; 41. Load-bearing column; 42. Support tube; 43. Threaded block two; 44. Slider two; 45. Chassis; 46. Load-bearing plate; 47. Fixed plate; 4701. Fixed hole; 48. Contraction spring; 49. Limiting ring; 50. Limiting rod; 51. Spring sheet; 52. Handle. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0029] In this embodiment, refer to Figure 1-8 A jig for replacing a PCB connector comprises a base 1, gaskets 13 are fixed to both sides of the upper surface of the base 1 near the rear end by bolts, and support columns 3 are fixed to the upper surfaces of the two gaskets 13 by bolts, the circumferential outer walls of the two support columns 3 are sleeved and fixed with the same movable plate 4, and a connecting rod 5 is fixed to the upper surface of the movable plate 4 near the middle by bolts, and a fixing ring 8 is welded to the end of the connecting rod 5 away from the movable plate 4, a bearing cylinder 7 is plugged and fixed to the inner wall of the circumferential inner wall of the fixing ring 8, and a lifting mechanism is plugged and fixed to the inner wall of the bearing cylinder 7, and the lifting mechanism comprises two A connecting column 32 is provided, and a heating module 30 and a positioning replacement module 31 are fixed to the bottom ends of the two connecting columns 32 respectively. A translation mechanism is arranged on the upper surface of the base 1 near the front end, and the translation mechanism includes a chassis 45. A fixing mechanism is arranged on the upper end of the chassis 45, and the fixing mechanism includes a fixing plate 47. The PCB board can be moved horizontally and vertically through the translation mechanism, and the position of the PCB board can be adjusted in time to ensure that the jig can be aligned with the PCB connector, and the connector pin or socket is accurately guided to the corresponding position, thereby improving the stability when replacing the connector and increasing the replacement efficiency.

[0030] refer to Figure 5 The lifting mechanism includes an electric push rod 6, the inner wall of the bearing tube 7 is plugged with the electric push rod 6, and the bottom end of the electric push rod 6 is fixed with a loading column 21, the outer circumferential wall of the loading column 21 is sleeved with a telescopic hose 9, and the top of the telescopic hose 9 is connected to the bearing tube 7; the telescopic hose 9 moves with the telescopic rod of the electric push rod 6 to maintain the airtightness of the space and prevent the outer wall of the telescopic rod of the electric push rod 6 from being contaminated by debris; the bottom end of the loading column 21 is fixed with a disc 24 by bolts, and the loading column 21 is fixed with a telescopic hose 9, and the top of the telescopic hose 9 is connected to the bearing tube 7; the telescopic hose 9 moves with the telescopic rod of the electric push rod 6 to maintain the airtightness of the space and prevent the outer wall of the telescopic rod of the electric push rod 6 from being contaminated by debris; the bottom end of the loading column 21 is fixed with a disc 24 by bolts, and the loading column 21 is fixed with a loading column 21; ... The circumferential outer wall of the column 21 is rotatably connected with a movable ring 22 near the bottom end, and a plurality of connecting blocks 26 are evenly welded on the circumferential outer wall of the movable ring 22, and a connecting block 27 is fixed by bolts on the side of the lower surface of the plurality of connecting blocks 26 away from the movable ring 22, and the lower surface of the connecting block 27 is fixed with the same disc 1 23 by bolts, and two connecting columns 32 are symmetrically installed on the lower surface of the disc 1 23 away from the center of the circle; rotating the movable ring 22 can drive the disc 1 23 to rotate.

[0031] refer to Figure 6 A number of return springs 29 are evenly installed on the upper surface of the disk 1 23 at a position deviating from the center of the circle, and thrust ball bearings 28 are fixed to the tops of the return springs 29; the return springs 29 apply downward pressure to the disk 1 23 to ensure the stability of the disk 1 23 when the fixture is working; two semicircular grooves 2201 are symmetrically opened at the bottom end of the movable ring 22, and two semicircular protrusions 25 are symmetrically fixed at the top end of the disk 24, and the semicircular protrusions 25 are adapted to the semicircular grooves 2201; through the cooperation of the two semicircular grooves 2201 and the two semicircular protrusions 25, the movable ring 22 can be accurately rotated one hundred and eighty degrees, and the positions of the heating module 30 and the positioning replacement module 31 can be interchanged, so as to avoid secondary positioning, simplify the work process, and further improve the work efficiency.

[0032] refer to Figure 3 , Figure 4, the upper surface of the movable plate 4 is provided with penetrating circular holes near both sides, and the circular holes are adapted to the support column 3, the upper surface of the movable plate 4 is provided with a rectangular groove near the middle, and a card box 15 is installed on the inner wall of the rectangular groove, and positioning holes 301 are evenly provided on one side between the circumferential outer walls of the two support columns 3, two symmetrical and structurally equal movable cavities 1501 are provided near both sides of the upper surface of the card box 15, and a rope winding cavity 1502 is provided in the middle of the rear end of the card box 15, and a card column 19 is inserted into the inner wall of the side of the movable cavity 1501 away from the rope winding cavity 1502, and the card column 19 is adapted to the positioning hole 301, and the card column 19 is close to the rope winding cavity 1502. A baffle 18 is fixed to one end of the baffle 18 by bolts, and a support spring 20 is welded to the side of the baffle 18 away from the column 19, and the end of the support spring 20 away from the baffle 18 is connected to the inner wall of the movable cavity 1501, a pull rope 17 is fixed at the center of the circle of the side of the baffle 18 away from the column 19, and a rope winding rod 16 is fixed to the end of the pull rope 17 away from the baffle 18, a knob 14 is welded to the rear end of the rope winding rod 16, and the knob 14 passes through the movable plate 4, and semicircular sliding grooves 1401 are evenly arranged on the circumferential outer wall of the knob 14; the knob 14 is turned to make the rope winding rod 16 reel in the pull rope 17, so that the column 19 is separated from the positioning hole 301, thereby adjusting the fixed height of the movable plate 4.

[0033] refer to Figure 7The translation mechanism includes a support plate 2, and the upper surface of the base 1 is fixed with a support plate 2 by bolts near both sides of the front end. A circular hole is opened in the middle of one side between the two support plates 2, and bearings 40 are fixed to the inner walls of the two circular holes. The same threaded rod 34 is inserted and fixed to the circumferential inner walls of the two bearings 40, and a threaded block 36 is screwed to the circumferential outer wall of the threaded rod 34. A sliding rod 35 is inserted near both ends of one side between the two support plates 2, and the two sliding rods 35 are slidably connected with a slider 33. The upper surfaces of the two sliders 33 are fixed with the same bearing plate 46 by bolts, and the bottom end of the bearing plate 46 is connected to the top of the threaded block 36; rotating the threaded rod 34 can make the threaded block 36 move laterally, and the finer the thread, the more accurate the position adjustment; the upper surface of the bearing plate 46 is close to the two A support plate 2 11 is welded at both ends, and a circular hole is opened in the middle of one side between the support plates 2 11, and bearings 2 38 are fixed on the inner walls of the two circular holes, the same threaded rod 2 37 is inserted and fixed to the circumferential inner walls of the two bearings 2 38, and a threaded block 2 43 is screwed on the circumferential outer wall of the threaded rod 2 37, a sliding rod 2 39 is inserted near both ends of one side between the two support plates 2 11, and the two sliding rods 2 39 are slidably connected with a slider 2 44, the upper surfaces of the two sliders 2 44 are fixed with the same chassis 45 by bolts, and the bottom end of the chassis 45 is connected to the top of the threaded block 2 43; rotating the threaded rod 2 37 can make the threaded block 2 43 move longitudinally; one end of the threaded rod 1 34 and the threaded rod 2 37 are fixed with a rotating disk 12 by bolts, and the rotating disk 12 is provided with a fixing mechanism, which includes a limiting rod 50.

[0034] refer to Figure 7 , Figure 8 The fixing mechanism includes a limit rod 50, a limit rod 50 is inserted into one side of the rotating disk 12 near the circumferential edge, and a spring sheet 51 is welded and fixed near the middle of the circumferential outer wall of the limit rod 50, a contraction spring 48 is fixed to the side of the spring sheet 51 near the rotating disk 12, and the end of the contraction spring 48 away from the spring sheet 51 is connected to the rotating disk 12, a limit ring 49 is fixed to the circumferential outer wall of the limit rod 50 near one end, and a handle 52 is rotatably connected to the end of the circumferential outer wall of the limit rod 50 away from the limit ring 49, and the support plate 1 2 and the support plate 2 11 are arranged on one side of the rotating disk 12 in a circumferential array with limit holes 201, and the limit holes 201 are adapted to the limit rod 50; through the limit rod 50, when the limit rod 50 is inserted into the limit hole 201, the rotating disk 12 can be prevented from rotating when the PCB connector is replaced, thereby avoiding damage to the connector and improving the safety of the fixture.

[0035] refer to Figure 7A bearing column 41 is welded on the upper surface of the chassis 45 near the center, and a support tube 42 is inserted at the top of the bearing column 41. A fixing plate 47 is fixed to the top of the support tube 42 by bolts, and fixing holes 4701 are evenly opened on the upper surface of the fixing plate 47. A chip storage box 10 is sleeved on the circumferential outer wall of the bearing column 41 near the bottom end; various types of PCB boards can be fixed through the fixing holes 4701, which improves the application range of the fixture. The chip storage box 10 can collect debris generated when the fixture is working, which is convenient for recovering connectors that accidentally fall.

[0036] When the device is in use, the PCB board is first fixed by the fixing plate 47, and then the knob 14 is rotated to adjust the height of the movable plate 4 so that the movable height of the electric push rod 6 fits the PCB board, the electric push rod 6 is started, the positioning replacement module 31 is close to the PCB board, and then the grip 52 is pulled outward to make the limit rod 50 disengage from the limit hole 201, the rotating disk 12 is rotated to adjust the position of the fixing plate 47 so that the PCB connector on the PCB board is aligned with the positioning replacement module 31, the positioning replacement module 31 is lowered, and the corresponding PCB connector is grabbed and removed. When installing the PCB connector, the positioning replacement module 31 grabs the new connector, the rotating disk 12 is rotated to adjust the position of the fixing plate 47, and the positioning replacement module 31 is lowered so that the connector pin or socket is accurately guided to the corresponding position of the PCB board; when the PCB connector is connected to the PCB board by welding, the heating module 30 is used to heat and melt the solder in the designated area before disassembly, and then the movable ring 22 is rotated to interchange the positions of the heating module 30 and the positioning replacement module 31 to complete the disassembly operation.

[0037] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A jig for replacing a PCB connector, comprising a base (1), characterized in that: Gaskets (13) are fixed to the upper surface of the base (1) near the rear end on both sides by bolts, and support columns (3) are fixed to the upper surfaces of the two gaskets (13) by bolts, the circumferential outer walls of the two support columns (3) are sleeved and fixed with the same movable plate (4), and a connecting rod (5) is fixed to the upper surface of the movable plate (4) near the middle by bolts, and a fixing ring (8) is welded to the end of the connecting rod (5) away from the movable plate (4), the circumferential inner wall of the fixing ring (8) is plugged and fixed with a bearing cylinder (7), and the inner wall of the bearing cylinder (7) is plugged and fixed with a lifting mechanism, the lifting mechanism comprises two connecting columns (32), and the bottom ends of the two connecting columns (32) are respectively fixed with a heating module (30) and a positioning replacement module (31), a translation mechanism is arranged on the upper surface of the base (1) near the front end, and the translation mechanism comprises a chassis (45), and a fixing mechanism is arranged on the upper end of the chassis (45), and the fixing mechanism comprises a fixing plate (47); The translation mechanism comprises a support plate (2), the upper surface of the base (1) is fixed with a support plate (2) by bolts near both sides of the front end, a circular hole is opened in the middle of one side between the two support plates (2), and the inner walls of the two circular holes are fixed with bearings (40), the circumferential inner walls of the two bearings (40) are plugged with the same threaded rod (34), and the circumferential outer wall of the threaded rod (34) is screwed with a threaded block (36), a sliding rod (35) is plugged with one side between the two support plates (2) near both ends, and the two sliding rods (35) are slidably connected with a slider (33), the upper surfaces of the two sliders (33) are fixed with the same bearing plate (46) by bolts, and the bottom end of the bearing plate (46) is connected to the top of the threaded block (36), and the upper surface of the bearing plate (46) is welded with support plates near both ends. Plate 2 (11), and a circular hole is opened in the middle of one side between the two support plates (11), and bearing 2 (38) is fixed to the inner wall of the two circular holes, the same threaded rod 2 (37) is inserted and fixed to the circumferential inner wall of the two bearings (38), and the circumferential outer wall of the threaded rod 2 (37) is screwed with a threaded block 2 (43), a sliding rod 2 (39) is inserted near both ends of one side between the two support plates (11), and the two sliding rods (39) are slidably connected to a slider 2 (44), the upper surfaces of the two sliders (44) are fixed to the same chassis (45) by bolts, and the bottom end of the chassis (45) is connected to the top end of the threaded block 2 (43), one end of the threaded rod 1 (34) and the threaded rod 2 (37) are fixed to a rotating disk (12) by bolts, and the rotating disk (12) is provided with a fixing mechanism, and the fixing mechanism includes a limiting rod (50); The lifting mechanism comprises an electric push rod (6), the inner wall of the bearing tube (7) is plugged with the electric push rod (6), and the bottom end of the electric push rod (6) is fixed with a loading column (21), the circumferential outer wall of the loading column (21) is sleeved with a telescopic hose (9), and the top end of the telescopic hose (9) is connected to the bearing tube (7), the bottom end of the loading column (21) is fixed with a disc 2 (24) by bolts, and the circumferential outer wall of the loading column (21) is rotatably connected with a movable ring (22) near the bottom end, the circumferential outer wall of the loading column (21) is uniformly welded with a plurality of connecting blocks 1 (26), and the lower surfaces of the plurality of connecting blocks 1 (26) are fixed with connecting blocks 2 (27) by bolts on the side away from the movable ring (22), the lower surface of the connecting block 2 (27) is fixed with the same disc 1 (23) by bolts, and two connecting columns (32) are symmetrically installed on the lower surface of the disc 1 (23) at a position deviating from the center of the circle; A plurality of return springs (29) are evenly mounted on the upper surface of the disk 1 (23) at a position deviating from the center of the circle, and thrust ball bearings (28) are fixed to the top ends of the plurality of return springs (29); The bottom end of the movable ring (22) is symmetrically provided with two semicircular grooves (2201), and the top end of the second disk (24) is symmetrically fixed with two semicircular protrusions (25), and the semicircular protrusions (25) are adapted to the semicircular grooves (2201).

2. A jig for replacing a PCB connector according to claim 1, characterized in that: The upper surface of the movable plate (4) is provided with penetrating circular holes near both sides, and the circular holes are adapted to the support columns (3). The upper surface of the movable plate (4) is provided with a rectangular groove near the middle, and a card box (15) is installed on the inner wall of the rectangular groove. Positioning holes (301) are evenly provided on one side between the circumferential outer walls of the two support columns (3).

3. A jig for replacing a PCB connector according to claim 2, characterized in that: Two symmetrical and structurally identical movable cavities (1501) are arranged on the upper surface of the card box (15) near both sides, and a rope winding cavity (1502) is arranged in the middle of the rear end of the card box (15), a clamping column (19) is inserted into the inner wall of the movable cavity (1501) on a side away from the rope winding cavity (1502), and the clamping column (19) and the positioning hole (301) are adapted to each other, and a baffle (18) is fixed to one end of the clamping column (19) near the rope winding cavity (1502) by means of bolts, and A support spring (20) is welded to a side of the baffle (18) away from the clamping column (19); one end of the support spring (20) away from the baffle (18) is connected to the inner wall of the movable cavity (1501); a pull rope (17) is fixed at the center of a circle of the side of the baffle (18) away from the clamping column (19); and a rope winding rod (16) is fixed to one end of the pull rope (17) away from the baffle (18); a knob (14) is welded to the rear end of the rope winding rod (16), and the knob (14) passes through the movable plate (4).

4. A jig for replacing a PCB connector according to claim 3, characterized in that: Semicircular sliding grooves (1401) are evenly arranged on the circumferential outer wall of the knob (14).

5. The jig for replacing a PCB connector according to claim 1, characterized in that: The fixing mechanism comprises a limiting rod (50), the limiting rod (50) being inserted into one side of the rotating disk (12) near the circumferential edge, and a spring sheet (51) being welded and fixed near the middle of the circumferential outer wall of the limiting rod (50), a contraction spring (48) being fixed to the side of the spring sheet (51) near the rotating disk (12), and one end of the contraction spring (48) away from the spring sheet (51) is connected to the rotating disk (12), a limiting ring (49) is sleeved and fixed near one end of the circumferential outer wall of the limiting rod (50), and a handle (52) is rotatably connected to one end of the circumferential outer wall of the limiting rod (50) away from the limiting ring (49), and a side of the supporting plate 1 (2) and the supporting plate 2 (11) near the rotating disk (12) is provided with limiting holes (201) in a circumferential array, and the limiting holes (201) and the limiting rod (50) are adapted to each other.

6. The jig for replacing a PCB connector according to claim 5, characterized in that: A bearing column (41) is welded near the center of the upper surface of the chassis (45), and a support tube (42) is inserted at the top end of the bearing column (41). A fixing plate (47) is fixed to the top end of the support tube (42) by bolts, and fixing holes (4701) are evenly formed on the upper surface of the fixing plate (47). A chip storage box (10) is sleeved on the circumferential outer wall of the bearing column (41) near the bottom end.

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