Transistor welding jig

Abstract

The utility model relates to the technical field of welding jigs, in particular to a transistor welding jig which comprises a jig block, two T-shaped grooves are formed in the top face of the jig block, and T-shaped cylinders are connected into the T-shaped grooves in a sliding mode. The adjusting assembly comprises an adjusting block, two clamping grooves are formed in the upper end of the adjusting block, a connecting block is fixedly arranged on the top face of the adjusting block, and the bottom faces of the two ends of the connecting block are fixedly connected with the top face of the T-shaped cylinder; and the pressing assembly comprises a first fixing block, an L-shaped block is fixedly arranged on the first fixing block, a clamping block is slidably connected to the bottom face of the first fixing block through a limiting groove, a supporting block is fixedly arranged on the L-shaped block, a plurality of sliding rods are slidably connected to the supporting block, and pressing blocks are fixedly arranged on the bottom faces of the sliding rods. The pressing blocks are made to adapt to the heights of different transistors, the fixing pressure is adjusted according to devices of different heights, the situation that pins incline or pseudo soldering occurs is reduced, displacement of a PCB is limited, device displacement caused by vibration is avoided, and the problems that the pins shake or fall off are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to welding fixture technical field, especially a transistor welding fixture. BACKGROUND

[0002] In the electronic manufacturing field, transistor welding is a very key link, with the development of electronic products towards miniaturization, high performance, the integration of components on the PCB is continuously improved, which puts forward higher requirements for transistor welding fixture;

[0003] Through the combination of the base, the tray and the upper cover plate, the PCB is clamped, and the anti-static elastic foam and the transistor pressing strip fixing device are used. Although the scheme avoids screw disassembly and reduces the risk of tin bead splashing,

[0004] But in the use process, it is found that the fixing pressure of the transistor pressing strip on the device is single, and cannot be flexibly adjusted for devices with different pin densities or heights, which may cause pin inclination or false welding, the PCB and the fixture are only fixed by physical pressing, and the device may be displaced during transportation or welding due to vibration, especially for multi-pin transistors, the pins are prone to shaking or falling off, which is not conducive to the welding of transistors. Utility model content

[0005] In view of the defects of the prior art, the utility model provides a transistor welding fixture, so that each pressing block can adapt to the height of different transistors, the fixing pressure can be adjusted for devices with different heights, the occurrence of pin inclination or false welding is reduced, the displacement of the PCB is limited, the fixation between the PCB and the fixture is more stable, the displacement of the device due to vibration is avoided, and the problem of pin shaking or falling off is reduced.

[0006] To solve the above technical problems, the utility model provides the following technical scheme: a transistor welding fixture, comprising a jig block, two T-shaped grooves are formed in the top surface of the jig block, and a T-shaped cylinder is slidably connected in the T-shaped groove;

[0007] An adjusting assembly is arranged, the adjusting assembly comprises an adjusting block, two clamping grooves are formed in the upper end of the adjusting block, a connecting block is fixedly arranged on the top surface of the adjusting block, and the bottom surfaces of the two ends of the connecting block are fixedly connected with the top surfaces of the T-shaped cylinders;

[0008] A pressing assembly is arranged, the pressing assembly comprises a first fixed block, an L-shaped block is fixedly arranged on the first fixed block, a clamping block is slidably connected to the bottom surface of the first fixed block through a limiting groove, the clamping block and the L-shaped block are respectively clamped and matched with the clamping grooves, a supporting block is fixedly arranged on the L-shaped block, a plurality of sliding rods are slidably connected to the supporting block, and the bottom surfaces of the sliding rods are fixedly provided with pressing blocks.

[0009] Preferably, the top surface of the jig block is fixed with two handles, the top surface of the connecting block is provided with two through holes, the through holes are inserted with fasteners, the T-shaped cylinder is threadedly connected with the fasteners through the threaded holes, the bottom surface of the fastener abuts against the bottom of the T-shaped groove, and the top surface of the jig block is provided with a placing groove.

[0010] Through the above technical scheme, the fastener is rotated to tightly abut against the bottom of the T-shaped groove, so that the T-shaped cylinder is fixed at the position of the T-shaped groove, and the position of the adjusting assembly is further fixed.

[0011] Preferably, the bottom surface of the first fixing block is fixed with a U-shaped block, a threaded column is threadedly connected with the U-shaped block, and the inner end of the threaded column is rotatably connected with the outer wall of the clamping block.

[0012] Through the above technical scheme, the threaded column is rotated to move forward and backward on the U-shaped block, so as to drive the clamping block to slide in the limiting groove, adjust the position of the clamping block, and facilitate the clamping block to be clamped with the clamping groove.

[0013] Preferably, a plurality of round rods are slidably connected with the pressing block, a rubber sheet is fixedly connected with the bottom surface of the round rod, a circular block is fixedly connected with the top surface of the round rod, a tension spring is sleeved with the outer circumferential wall of the upper end of the round rod, the top surface of the tension spring is fixedly connected with the bottom surface of the circular block, and the bottom surfaces of a plurality of tension springs are fixedly connected with the top surface of the pressing block.

[0014] Through the above technical scheme, the tension spring is elastically deformed according to the condition of the device, so as to provide different degrees of buffering and pressure adjustment, and the hard damage of the pressing block to the device is reduced.

[0015] Preferably, a plurality of insertion rods are slidably connected with the supporting block, and a plurality of insertion grooves are formed in the side walls of the sliding rods.

[0016] Through the above technical scheme, the insertion rod is inserted into the corresponding insertion groove to fix the sliding rod.

[0017] Preferably, the insertion rod is inserted into the insertion groove, a push block is rotatably connected with the outer end of the sliding rod through a pin shaft, a waist hole is formed in the top surface of one end of the push block, and the outer circumferential wall of the pin shaft is slidably connected with the inner wall of the waist hole.

[0018] Through the above technical scheme, the waist hole drives the insertion rod to move synchronously, so that the insertion rod slides along the supporting block.

[0019] Preferably, a hinge seat is rotatably connected with the middle part of the push block, and the inner walls of two hinge seats are fixedly connected with the outer walls of the supporting block.

[0020] Through the above technical scheme, the push block is pushed to be close to the supporting block, so that the push block rotates around the hinge seat.

[0021] Preferably, the inner wall of the dial block is fixed with a spring, and the two spring inner walls are fixedly connected with the outer wall of the supporting block respectively.

[0022] Through the above technical scheme, the dial block is loosened through the restoring force of the spring, the insertion rod is inserted into the corresponding insertion groove to fix the sliding rod.

[0023] The utility model discloses the beneficial effect has: adaptation different size's PCB board, avoided the tedious operation of frequent replacement of fixture, reduced cost, the sliding rod of compression assembly can along the supporting block independent sliding, adjusts the distribution of the compression block according to the position of different transistor, adjusts the height of sliding rod, through the compression block vertical pressure that the transistor top surface on the PCB board is added, makes each compression block adapt to the height of different transistor, adjusts fixed pressure for different height device, reduces the situation that pin inclination or virtual welding occurs, limit the displacement of PCB board, make the fixation between PCB board and fixture more stable, avoid the device displacement due to vibration, reduce the problem of pin shaking or falling off. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is whole structure schematic diagram of the utility model;

[0025] Figure 2 It is T shape cylinder structure assembly schematic drawing of the utility model;

[0026] Figure 3 It is the perspective view of the utility model's clamping block structure;

[0027] Figure 4 It is the perspective view of the utility model's compression block structure;

[0028] Figure 5 It is the insertion rod structure schematic drawing of the utility model.

[0029] In the drawing: 100, fixture block;101, T-shaped groove;102, T-shaped cylinder;103, handle;104, fastener;105, placement groove;

[0030] 200, adjusting assembly;201, adjusting block;202, connecting block;203, clamping groove;204, through hole;

[0031] 300, compression assembly;301, first fixed block;302, L-shaped block;303, limiting groove;304, clamping block;305, supporting block;306, sliding rod;307, compression block;3071, round rod;3072, rubber sheet;3073, round block;3074, tension spring;308, insertion rod;309, insertion groove;310, pin shaft;311, dial block;312, waist hole;313, hinge base;314, spring;315, U-shaped block;316, threaded column. DETAILED DESCRIPTION

[0032] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0033] Example 1: As Figures 1-4 As shown, this embodiment provides a transistor welding fixture, including a fixture block 100 and an adjustment component 200. The top surface of the fixture block 100 has two T-shaped grooves 101, and a T-shaped cylinder 102 is slidably connected inside the T-shaped grooves 101.

[0034] The adjustment component 200 includes an adjustment block 201. The upper end of the adjustment block 201 has two slots 203. A connecting block 202 is fixedly provided on the top surface of the adjustment block 201. The bottom surfaces of the two ends of the connecting block 202 are respectively fixedly connected to the top surface of the T-shaped cylinder 102.

[0035] The clamping assembly 300 includes a first fixing block 301, an L-shaped block 302 fixedly mounted on the first fixing block 301, a clamping block 304 slidably connected to the bottom surface of the first fixing block 301 through a limiting groove 303, the clamping block 304 and the L-shaped block 302 respectively engaging with the slot 203, a support block 305 fixedly mounted on the L-shaped block 302, a plurality of sliding rods 306 slidably connected to the support block 305, and a pressing block 307 fixedly mounted on the bottom surface of the sliding rods 306.

[0036] Two handles 103 are fixed on the top surface of the fixture block 100. Two through holes 204 are opened on the top surface of the connecting block 202. Fasteners 104 are inserted into the through holes 204. The T-shaped cylinder 102 is threadedly connected to the fastener 104 through the threaded hole. The bottom surface of the fastener 104 abuts against the bottom of the T-shaped groove 101. The top surface of the fixture block 100 is provided with a placement groove 105. By rotating the fastener 104, it is made to abut tightly against the bottom of the T-shaped groove 101, thereby fixing the T-shaped cylinder 102 in the position of the T-shaped groove 101, and thus fixing the position of the adjusting component 200.

[0037] A U-shaped block 315 is fixedly provided on the bottom surface of the first fixing block 301. A threaded post 316 is threadedly connected to the U-shaped block 315. The inner end of the threaded post 316 is rotatably connected to the outer wall of the clamping block 304. By rotating the threaded post 316, the threaded post 316 moves back and forth on the U-shaped block 315, thereby driving the clamping block 304 to slide in the limiting groove 303, adjusting the position of the clamping block 304, and facilitating the clamping block 304 to engage with the slot 203.

[0038] A plurality of round rods 3071 are slidably connected to the pressing block 307, a rubber sheet 3072 is fixedly arranged on the bottom surface of the round rod 3071, a round block 3073 is fixedly arranged on the top surface of the round rod 3071, a tension spring 3074 is sleeved on the outer circumferential wall of the upper end of the round rod 3071, the top surface of the tension spring 3074 is fixedly connected with the bottom surface of the round block 3073, and the bottom surfaces of a plurality of tension springs 3074 are fixedly connected with the top surface of the pressing block 307; the tension spring 3074 elastically deforms according to the condition of the device, thereby providing different degrees of buffering and pressure adjustment, and reducing the hard damage of the pressing block 307 to the device.

[0039] Working principle: the T-shaped slot 101 on the jig block 100 is in sliding fit with the T-shaped cylinder 102, the connecting block 202 is moved by pushing the adjusting block 201, different sizes of PCB boards are adapted, the tedious operation of frequently replacing the jig is avoided, and the cost is reduced; the clamping block 304 and the L-shaped block 302 are respectively clamped with the clamping groove 203 on the adjusting block 201, so that the compression assembly 300 is conveniently installed and positionally adjusted;

[0040] The sliding rod 306 of the compression assembly 300 can independently slide along the supporting block 305, the distribution of the pressing block 307 is adjusted according to the positions of different transistors, the height of the sliding rod 306 is adjusted, the top surface of the transistor on the PCB board is vertically pressed by the pressing block 307, each pressing block 307 adapts to the height of different transistors, the fixed pressure is adjusted for devices of different heights, the occurrence of pin inclination or virtual welding is reduced, the displacement of the PCB board is limited, the fixation between the PCB board and the jig is more stable, the displacement of the device due to vibration is avoided, and the problem of pin shaking or falling off is reduced;

[0041] After the position of the adjusting block 201 is adjusted, the fastener 104 is inserted through the through hole 204 in the top surface of the connecting block 202, the fastener 104 is tightly abutted with the bottom of the T-shaped slot 101 by rotating the fastener 104, so that the T-shaped cylinder 102 is fixed in the position of the T-shaped slot 101, and the position of the adjusting assembly 200 is fixed, the PCB board is placed in the jig block 100 through the placing groove 105, the edge of the PCB board is in contact with the adjusting block 201, and the adaptation effect and stability of different sizes of PCB boards are improved;

[0042] By rotating the threaded column 316, the threaded column 316 is moved forward and backward on the U-shaped block 315, thereby driving the clamping block 304 to slide in the limiting groove 303, adjusting the position of the clamping block 304, and facilitating the clamping of the clamping block 304 and the clamping groove 203; when the pressing block 307 is used to press and fix the transistors and other devices on the PCB, the rubber sheet 3072 is used to directly contact and press the transistors and other devices, the round rod 3071 slides on the pressing block 307, and the tension spring 3074 elastically deforms according to the condition of the device, thereby providing different degrees of buffering and pressure adjustment, reducing the hard damage of the pressing block 307 to the device, adjusting the fixing pressure for devices of different heights, compared with the traditional single pressure fixing mode, reducing the occurrence of pin inclination or virtual welding, and improving the welding quality.

[0043] Embodiment two: as shown in Figure 1 , Figure 3 , Figure 4 and Figure 5 on the basis of embodiment one, a plurality of insertion rods 308 are slidably connected to the support block 305, and a plurality of insertion slots 309 are formed in the side walls of the slide rod 306 at both ends; the insertion rod 308 is inserted into the corresponding insertion slot 309 to fix the slide rod 306.

[0044] The insertion rod 308 is inserted into the insertion slot 309, the outer end of the slide rod 306 is rotatably connected to the push block 311 through the pin shaft 310, the waist hole 312 is formed in the top surface of one end of the push block 311, and the pin shaft 310 is slidably connected to the inner wall of the waist hole 312; the insertion rod 308 is moved synchronously by the waist hole 312, so that the insertion rod 308 slides along the support block 305.

[0045] The hinge seat 313 is rotatably connected to the middle of the push block 311, and the inner walls of the two hinge seats 313 are fixedly connected to the outer walls of the support block 305; the push block 311 is pushed to be close to the support block 305, so that the push block 311 rotates around the hinge seat 313.

[0046] The spring 314 is fixedly arranged in the inner wall of the push block 311, and the inner walls of the two springs 314 are fixedly connected to the outer walls of the support block 305; the insertion rod 308 is fixed to the slide rod 306 by the restoring force of the spring 314 when the push block 311 is loosened.

[0047] When it is necessary to fix the position of the slide rod 306 on the support block 305 during use, the insertion rod 308 is pushed to be inserted into the corresponding insertion slot 309, so as to fix the slide rod 306 and limit its upward and downward sliding;

[0048] The pushing block 311 is pushed to be close to the supporting block 305, the pushing block 311 is rotated around the hinge seat 313, the pin shaft 310 is driven to move synchronously through the waist hole 312 to drive the inserting rod 308 to slide along the supporting block 305, the inserting rod 308 is separated from one of the inserting grooves 309, after being separated, the slide rod 306 is pulled to slide along the supporting block 305 and is adjusted to a suitable use height, the pushing block 311 is loosened through the restoring force of the spring 314, the inserting rod 308 is inserted into the corresponding inserting groove 309 to fix the slide rod 306, the height adjustment of the slide rod 306 and the pressing block 307 is facilitated, the pressing block 307 is ensured to press the device at a suitable height, the welding accuracy and stability are improved, and the adaptability of the jig to a complex welding scene is improved.

[0049] The above is only a preferred specific implementation of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A transistor welding fixture, characterized in that, include: A jig block (100) has two T-shaped grooves (101) on its top surface, and a T-shaped cylinder (102) is slidably connected inside the T-shaped grooves (101). Adjustment component (200), the adjustment component (200) includes adjustment block (201), the upper end of the adjustment block (201) has two slots (203), the top surface of the adjustment block (201) is fixedly provided with a connecting block (202), the bottom surfaces of the two ends of the connecting block (202) are respectively fixedly connected to the top surface of the T-shaped cylinder (102); A clamping assembly (300) includes a first fixing block (301), an L-shaped block (302) fixed on the first fixing block (301), a clamping block (304) slidably connected to the bottom surface of the first fixing block (301) through a limiting groove (303), the clamping block (304) and the L-shaped block (302) respectively engaging with the slot (203), a support block (305) fixed on the L-shaped block (302), a plurality of sliding rods (306) slidably connected on the support block (305), and a pressure block (307) fixed on the bottom surface of the sliding rods (306).

2. The transistor welding fixture as described in claim 1, characterized in that: The top surface of the fixture block (100) is fixed with two handles (103), the top surface of the connecting block (202) has two through holes (204), fasteners (104) are inserted into the through holes (204), the T-shaped cylinder (102) is threadedly connected to the fasteners (104) through a threaded hole, the bottom surface of the fasteners (104) abuts against the bottom of the T-shaped groove (101), and the top surface of the fixture block (100) has a placement groove (105).

3. The transistor welding fixture as described in claim 1, characterized in that: The bottom surface of the first fixing block (301) is fixed with a U-shaped block (315), and a threaded post (316) is threadedly connected to the U-shaped block (315). The inner end of the threaded post (316) is rotatably connected to the outer wall of the clamping block (304).

4. The transistor welding fixture as described in claim 3, characterized in that: Multiple round rods (3071) are slidably connected to the pressure block (307). A rubber sheet (3072) is fixed on the bottom surface of the round rod (3071), and a round block (3073) is fixed on the top surface of the round rod (3071). A tension spring (3074) is sleeved on the outer peripheral wall of the upper end of the round rod (3071). The top surface of the tension spring (3074) is fixedly connected to the bottom surface of the round block (3073), and the bottom surfaces of the multiple tension springs (3074) are respectively fixedly connected to the top surface of the pressure block (307).

5. The transistor welding fixture as described in claim 4, characterized in that: Multiple insert rods (308) are slidably connected to the support block (305), and multiple slots (309) are provided on the side walls at both ends of the slide rod (306).

6. The transistor welding fixture as described in claim 5, characterized in that: The insertion rod (308) is inserted into the slot (309). The outer end of the slide rod (306) is rotatably connected to the lever (311) via the pin (310). A waist hole (312) is opened on the top surface of one end of the lever (311). The outer peripheral wall of the pin (310) is slidably connected to the inner wall of the waist hole (312).

7. The transistor welding fixture as described in claim 6, characterized in that: The middle part of the lever block (311) is rotatably connected to a hinge seat (313), and the inner walls of the two hinge seats (313) are respectively fixedly connected to the outer wall of the support block (305).

8. The transistor welding fixture as described in claim 7, characterized in that: The inner wall of the lever (311) is fixedly provided with a spring (314), and the inner walls of the two springs (314) are respectively fixedly connected to the outer wall of the support block (305).

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