An automated pin insertion machine for IGBT modules

Abstract

This invention relates to the field of semiconductor devices, and more particularly to an automatic pin insertion machine for IGBT modules, comprising a body; further comprising a connecting frame, an electric turntable, a rectangular plate, a fixing plate, and an adjustment assembly; the body is connected to the connecting frame; the connecting frame is connected to the adjustment assembly; the moving part of the adjustment assembly is connected to several electric turntables, and the adjustment assembly is used to adjust the distance between the several electric turntables; each electric turntable is connected to a rectangular plate, and the rectangular plate is set at a 45-degree angle; each rectangular plate is connected to a fixing plate. By setting the rectangular plate at a 45-degree angle, compared to a horizontal rectangular plate, when the inclined rectangular plate moves the clamping cylinder and clamping plate downwards, the distance between the rectangular plate and the surrounding inserted pins is larger, thus reducing the likelihood of collision with the inserted pins and causing damage to the inserted pins, and adapting to the insertion of pins with small spacing.

Description

Technical Field

[0001] This invention relates to the field of semiconductor devices, and more particularly to an automatic pin insertion machine for IGBT modules. Background Technology

[0002] IGBT, or Insulated Gate Bipolar Transistor, is a semiconductor device widely used in rail transportation, smart grids, aerospace, electric vehicles, and new energy equipment. For example, Chinese patent CN117810137B discloses an automatic pin insertion machine for IGBT modules. It changes the position of the adjusting block by rotating the crosshead screw and moving the adjusting block. The adjusting motor is then activated to move the adjusting plate to the other side inside the pin extraction device housing, thus avoiding the situation where the pin positions are not on the same horizontal line, which affects the pin insertion efficiency of the IGBT module.

[0003] However, the fixed spacing between its multiple adjustment plates, and the small spacing between the needles inserted into the IGBT module, means that when clamping the small-pitched needles, the adjustment plates cannot simultaneously insert the needles into the IGBT module, which has significant limitations. Summary of the Invention

[0004] To overcome the limitation of existing pin insertion devices, which cannot simultaneously insert multiple pins into the IGBT module when gripping small-pitch pins, this invention provides an automatic pin insertion machine for IGBT modules.

[0005] The technical solution of the present invention is: an automatic pin insertion machine for IGBT modules, comprising a body; further comprising a connecting frame, an electric turntable, a rectangular plate, a fixing plate, a clamping assembly, and an adjusting assembly; the body is connected to the connecting frame; the connecting frame is connected to the adjusting assembly; the moving part of the adjusting assembly is connected to a plurality of electric turntables, and the adjusting assembly is used to adjust the distance between the plurality of electric turntables; each electric turntable is connected to a rectangular plate, and the rectangular plate is set at a 45-degree inclination angle; each rectangular plate is connected to a fixing plate; each fixing plate is connected to a clamping assembly for clamping the pin.

[0006] Furthermore, the clamping assembly includes an electric push rod I, a clamping cylinder, and a clamping plate; each fixed plate is connected to two electric push rods I; the telescopic end of each electric push rod I located on the same fixed plate is connected to a clamping cylinder, and the clamping cylinder is slidably connected to the corresponding fixed plate; each clamping cylinder is connected to a clamping plate.

[0007] Furthermore, both the clamping cylinder and the clamping plate are made of alloy material.

[0008] Furthermore, the adjustment assembly includes an electric slide rail, a slider, a mounting block, a sliding plate, a lead screw, and a motor; a connecting frame is fixedly connected to several electric slide rails; each electric slide rail is slidably connected to several block groups; each block group consists of two sliders; a slider in the same block group is fixedly connected to a mounting block, and the mounting block is connected to a corresponding electric turntable; two sliders in the same block group are jointly fixedly connected to a sliding plate, and the sliding plate is slidably connected to a corresponding mounting block; two sliders in the same block group are jointly rotatably connected to a lead screw, and the lead screw is slidably connected to a corresponding mounting block; a slider in the same block group is fixedly connected to a motor, and the output shaft of the motor is fixedly connected to a corresponding lead screw.

[0009] Furthermore, the clamping cylinder is cone-shaped.

[0010] Furthermore, the telescopic ends of the clamping cylinder and the electric push rod I are detachably connected.

[0011] Furthermore, it also includes an electric push rod II and a connecting pipe; each fixed plate is composed of a connecting plate I and a connecting plate II that are slidably connected to each other; one electric push rod I is fixed to the connecting plate I, and another electric push rod I is fixed to the connecting plate II; each electric turntable is fixedly connected to an electric push rod II, and the telescopic end of the electric push rod II is fixedly connected to the corresponding connecting plate II, and the connecting plate II is fixedly connected to the rectangular plate; the clamping plate is hollow, and each clamping plate located on the corresponding connecting plate I has several round holes on its inner side; each clamping plate located on the corresponding connecting plate I is connected to a connecting pipe.

[0012] Furthermore, rubber strips are provided on the inner edge of the clamping plate.

[0013] Furthermore, it also includes spring rods II, conical sleeves, electric push rods III, and pressure plates; several spring rods II are fixedly connected to the clamping cylinder on each connecting plate I; a conical sleeve is fixedly connected to the telescopic end of all spring rods II located on the same clamping cylinder; an electric push rod III is fixedly connected to the clamping cylinder on each connecting plate I; a pressure plate is fixedly connected to the telescopic end of each electric push rod III.

[0014] Furthermore, it also includes distance sensors; each of the connecting plates II and I is fixedly connected with a distance sensor.

[0015] The beneficial effects are as follows: The present invention uses a rectangular plate at a 45-degree angle. Compared with a horizontal rectangular plate, when the rectangular plate moves the clamping cylinder and clamping plate downward, the distance between the rectangular plate and the surrounding inserted needles is larger. This makes it less likely to collide with the inserted needles and cause damage to the inserted needles. It is suitable for inserting needles with small spacing.

[0016] This invention controls the start of an external pump to draw suction from the clamping plate via a connecting pipe on connecting plate I. This causes the clamping plate to vacuum-adsorb the needle through a circular hole, holding the needle inside the clamping plate on connecting plate I. Then, as the cylinder drives the connecting frame to insert the needle into the IGBT module body, the electric push rod II is controlled to move the connecting plate II upwards, causing the clamping cylinder and clamping plate to be inserted downwards into the IGBT module body by only one clamping plate adsorbing the needle. This further reduces the volume of the clamping cylinder and clamping plate used to insert the needle into the IGBT module body, accommodating smaller needle spacing.

[0017] This invention uses a distance sensor to detect the distance between the corresponding clamping cylinder and clamping plate and the IGBT module body, thereby detecting whether all the needles are inserted into the IGBT module body to the same depth. When clamping and inserting shorter needles, the electric push rod III is controlled to move the pressure plate downward, so that the pressure plate abuts against the upper end of the shorter needle, thereby improving the insertion effect. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the automatic pin insertion machine for IGBT modules disclosed in this invention;

[0019] Figure 2 This is a partial structural schematic diagram of the automatic pin insertion machine for IGBT modules disclosed in this invention;

[0020] Figure 3 This is a partial structural diagram of the connection frame, rectangular plate, adjustment assembly, and clamping assembly of the automatic pin insertion machine for IGBT modules disclosed in this invention.

[0021] Figure 4 This is a partial structural diagram of the combined structure of the automatic pin insertion machine for IGBT modules disclosed in this invention, which includes a connecting frame, an electric turntable, a rectangular plate, a fixing plate, an electric push rod I, a clamping cylinder, a clamping plate, a mounting block, and an electric push rod II.

[0022] Figure 5 This is a schematic diagram of the first internal structure of the clamping assembly disclosed in the automatic pin insertion machine for IGBT modules of the present invention.

[0023] Figure 6 This is a schematic diagram of the second internal structure of the clamping assembly disclosed in the automatic pin insertion machine for IGBT modules of the present invention.

[0024] Component names and serial numbers in the diagram: 1-Cabinet, 2-Feeder, 3-Clamper, 4-Electric Guide Rail, 5-Moving Block, 6-Cylinder, 7-IGBT Module Body, 8-Pin Body, 101-Connecting Frame, 102-Electric Turntable, 103-Rectangular Plate, 104-Fixing Plate, 105-Electric Push Rod I, 106-Clamping Cylinder, 107-Clamping Plate, 108-Electric Slide Rail, 109-Slider, 1010-Mounting Block, 1011-Slide Plate, 1012-Lead Screw, 1013-Motor, 201-Electric Push Rod II, 202-Connecting Pipe, 301-Spring Rod II, 302-Conical Sleeve, 303-Distance Sensor, 304-Electric Push Rod III, 305-Pressure Plate, 1071-Round Hole, 1041-Connecting Plate I, 1042-Connecting Plate II. Detailed Implementation

[0025] The preferred technical solution of the present invention will be described in detail below with reference to the accompanying drawings.

[0026] Example 1

[0027] An automated pin insertion machine for IGBT modules, such as Figures 1-6 As shown, it includes organisms;

[0028] It also includes a connecting frame 101, an electric turntable 102, a rectangular plate 103, a fixing plate 104, a clamping assembly, and an adjusting assembly; the connecting frame 101 is connected to the machine body; the adjusting assembly is connected to the connecting frame 101; the moving part of the adjusting assembly is connected to several electric turntables 102, and the adjusting assembly is used to adjust the distance between the several electric turntables 102; each electric turntable 102 is connected to a rectangular plate 103, and the rectangular plate 103 is set at a 45-degree angle; each rectangular plate 103 is connected to a fixing plate 104; each fixing plate 104 is connected to a clamping assembly for clamping the needle body 8.

[0029] The machine body includes a cabinet 1, a feeder 2, a clamp 3, an electric guide rail 4, a moving block 5, and a cylinder 6; the cabinet 1 is fixedly connected to the feeder 2 for conveying the needle body 8; the cabinet 1 is fixedly connected to the clamp 3 for clamping the IGBT module body 7; the cabinet 1 is bolted to the electric guide rail 4; the electric guide rail 4 is slidably connected to the moving block 5; the moving block 5 is fixedly connected to the cylinder 6, and the telescopic end of the cylinder 6 is fixedly connected to the connecting frame 101.

[0030] The clamping assembly includes an electric push rod I 105, a clamping cylinder 106, and a clamping plate 107; each fixed plate 104 is connected to two electric push rods I 105; the telescopic end of each electric push rod I 105 located on the same fixed plate 104 is connected to half of the clamping cylinder 106, and the clamping cylinder 106 is slidably connected to the corresponding fixed plate 104; each clamping cylinder 106 is connected to one half of the clamping plate 107.

[0031] Both the clamping cylinder 106 and the clamping plate 107 are made of alloy material to ensure the strength and service life of the clamping cylinder 106 and the clamping plate 107.

[0032] The adjustment assembly includes an electric slide rail 108, a slider 109, a mounting block 1010, a sliding plate 1011, a lead screw 1012, and a motor 1013. A connecting frame 101 bolts two electric slide rails 108. Each electric slide rail 108 is slidably connected to several block groups. Each block group consists of two sliders 109. A mounting block 1010 is fixedly connected to one slider 109 in the same block group, and the mounting block 1010 is connected to a corresponding electric turntable 102. Two sliders 109 in the same block group are jointly fixedly connected to a sliding plate 1011, and the sliding plate 1011 is slidably connected to the corresponding mounting block 1010. Two sliders 109 in the same block group are rotatably connected to a lead screw 1012, and the lead screw 1012 is slidably connected to the corresponding mounting block 1010. A motor 1013 is fixedly connected to one slider 109 in the same block group, and the output shaft of the motor 1013 is fixedly connected to the corresponding lead screw 1012.

[0033] The clamping cylinder 106 is tapered, which reduces the volume of the lower end of the clamping cylinder 106 and makes it easier for the clamping cylinder 106 to insert the needle body 8 into the dense needle body 8 on the IGBT module body 7.

[0034] The telescopic ends of the clamping cylinder 106 and the electric push rod I 105 are detachably connected, so that when inserting needles 8 of different diameters, the clamping cylinder 106 and the clamping plate 107 can be quickly replaced, so that the clamping cylinder 106 and the clamping plate 107 can adapt to needles 8 of different diameters.

[0035] In use, the IGBT module body 7 to be inserted is manually fixed to the cabinet 1 using the clamp 3. Then, the mounting blocks 1010 are aligned in a straight line by adjusting the components, so that the clamping cylinders 106 and clamping plates 107 on different mounting blocks 1010 can clamp the needle body 8 delivered by the feeder 2. Then, the feeder 2 is controlled to deliver the needle body 8 one by one to the leftmost clamping cylinder 106 and clamping plate 107. Taking the leftmost clamping cylinder 106 and clamping plate 107 clamping the needle body 8 as an example, the two electric push rods I 105 are controlled to drive the corresponding clamping cylinders. The clamping cylinders 106 and 107 move in opposite directions, opening the clamping cylinders 106 and 107. Then, the control cylinder 6 moves the connecting frame 101 and its components downwards until the needle body 8 is inserted into the predetermined depth within the clamping cylinders 106 and 107. Next, the control cylinder 6 moves the corresponding clamping cylinders 106 and 107 towards each other, clamping the needle body 8. Finally, the control cylinder 4 moves the moving block 5 to move the cylinder 6 and its components to the left. Until the second clamping cylinder 106 and clamping plate 107 from left to right are directly above the needle body 8, after the corresponding clamping cylinder 106 and clamping plate 107 open, the control cylinder 6 drives the connecting frame 101 and its parts to move down again, so that the second clamping cylinder 106 and clamping plate 107 clamp the needle body 8. This process is repeated until all the clamping cylinders 106 and clamping plates 107 clamp the needle body 8. Then, the control cylinder 6 drives the connecting frame 101 and its parts to move up to the initial height. Subsequently, the control electric guide rail 4 drives the moving block 5 to drive the cylinder. The components on the IGBT module body 7 and the clamping cylinder 106 move to the right until the needle body 8 held by the clamping cylinder 106 and the clamping plate 107 corresponds to the pin hole on the IGBT module body 7. Then, the control adjustment component makes the needle body 8 on the different clamping cylinders 106 and the clamping plate 107 correspond to the pin hole on the IGBT module body 7. Next, the control cylinder 6 drives the connecting frame 101 and the rectangular plate 103 and the components on it to move down, thereby causing the rectangular plate 103 to drive the clamping cylinder 106 and the clamping plate 107 to vertically insert the needle body 8 into the pin hole on the IGBT module body 7, completing the needle insertion operation.

[0036] Because the rectangular plate 103 is set at a 45-degree angle, compared with the horizontal rectangular plate 103, when the inclined rectangular plate 103 moves the clamping cylinder 106 and the clamping plate 107 downward, the distance between the rectangular plate 103 and the surrounding inserted needles 8 is larger, so it is less likely to collide with the inserted needles 8 and cause damage to the inserted needles 8, thus adapting to the small-spaced needles 8 for needle insertion.

[0037] The operation steps of the adjustment component are as follows: Before the clamping cylinder 106 and clamping plate 107 clamp the needle body 8, the control motor 1013 is started, and the output shaft of the motor 1013 drives the lead screw 1012 to rotate. Then the lead screw 1012 drives the mounting block 1010 and its parts to slide in the front and back direction on the slide plate 1011 until all the mounting blocks 1010 are located at the front of the connecting frame 101 and are on the same straight line. After the clamping cylinder 106 and clamping plate 107 clamp the needle body 8 and move to the top of the IGBT module body 7, the corresponding motor 1013 is started again, and the output shaft of the motor 1013 drives the corresponding lead screw 1012 to rotate. This causes different mounting blocks 1010 to drive the clamping cylinder 106, clamping plate 107 and needle body 8 to be located above the corresponding needle hole on the IGBT module body 7, thereby realizing the simultaneous clamping of multiple needle bodies 8 and the simultaneous insertion of multiple needle bodies 8 into the IGBT module body 7.

[0038] When inserting pins, the spacing between pin holes on different IGBT module bodies 7 is different, which makes the spacing between the left and right pin bodies 8 also different. Therefore, the electric slide rail 108 is controlled to make the slider 109 drive the corresponding slide plate 1011 and mounting block 1010 to move in the left and right directions, thereby adjusting the spacing of the mounting block 1010 in the left and right directions to adapt to different IGBT module bodies 7.

[0039] Example 2

[0040] Based on Example 1, such as Figures 3-6 As shown, it also includes an electric push rod II 201 and a connecting pipe 202; each fixed plate 104 is composed of a connecting plate I 1041 and a connecting plate II 1042 that are slidably connected to each other; one electric push rod I 105 is fixed to the connecting plate I 1041, and another electric push rod I 105 is fixed to the connecting plate II 1042; each electric turntable 102 is bolted to an electric push rod II 201, and the telescopic end of the electric push rod II 201 is fixed to the corresponding connecting plate II 1042, and the connecting plate II 1042 is fixed to the rectangular plate 103; the clamping plate 107 is hollow, and each clamping plate 107 located on the corresponding connecting plate I 1041 has several round holes 1071 on its inner side; each clamping plate 107 located on the corresponding connecting plate I 1041 is connected to a connecting pipe 202.

[0041] A rubber strip is provided on the inner edge of the clamping plate 107 to enhance the sealing between the clamping plate 107 and the needle body 8 and improve the stability of the clamping plate 107 in adsorbing the needle body 8.

[0042] Connect the external pump to the connecting pipe 202. Control the two electric push rods I 105 located on the same mounting block 1010 to drive the corresponding clamping cylinder 106 and clamping plate 107 to move towards each other. After the clamping cylinder 106 and clamping plate 107 clamp the needle body 8, control the external pump to start. The clamping plate 107 is then suctioned through the connecting pipe 202 located on the connecting plate I 1041. The corresponding clamping plate 107 vacuum adsorbs the needle body 8 through the round hole 1071, adsorbing the needle body 8 onto the clamping plate 107 located on the connecting plate I 1041. Inside, during the process of the cylinder 6 causing the connecting frame 101 to drive the clamping cylinder 106 and clamping plate 107 to insert the needle 8 into the IGBT module body 7, the electric push rod II 201 is controlled to cause the connecting plate II 1042 to drive the corresponding clamping cylinder 106 and clamping plate 107 to move upward, so that only one clamping plate 107 is attracted to the needle 8 and then inserted downward into the IGBT module body 7, further reducing the volume of the clamping cylinder 106 and clamping plate 107 inserting the needle 8 into the IGBT module body 7, and adapting to a smaller needle spacing.

[0043] Example 3

[0044] Based on Example 2, such as Figures 5-6 As shown, it also includes a spring rod II 301, a conical sleeve 302, an electric push rod III 304, and a pressure plate 305; several spring rods II 301 are fixedly connected to the clamping cylinder 106 on each connecting plate I 1041; a conical sleeve 302 is fixedly connected to the telescopic end of all the spring rods II 301 located on the same clamping cylinder 106; an electric push rod III 304 is fixedly connected to the clamping cylinder 106 on each connecting plate I 1041; a pressure plate 305 is fixedly connected to the telescopic end of each electric push rod III 304.

[0045] It also includes a distance sensor 303; each connecting plate II 1042 and connecting plate I 1041 is fixedly connected to a distance sensor 303. When the clamping cylinder 106 and the clamping plate 107 simultaneously insert multiple needles 8 downwards into the IGBT module body 7, the distance sensor 303 detects the distance between the corresponding clamping cylinder 106 and clamping plate 107 and the IGBT module body 7, and then detects whether all the needles 8 are inserted into the IGBT module body 7 to the same depth.

[0046] When the slender needle 8 is inserted into the IGBT module body 7, it is prone to bending due to its low rigidity. Therefore, as the clamping cylinder 106 and clamping plate 107 move down to clamp the needle 8, the tapered sleeve 302 clamps the upper end of the needle 8 under the elastic force of the spring rod II 301, fixing the upper end of the needle 8 and improving the stability of the clamping cylinder 106 and clamping plate 107 when inserting the needle 8 into the IGBT module body 7. At the same time, the tapered sleeve 302 guides and positions the needle 8 to ensure that the needle... The depth to which the needle body 8 enters the clamping cylinder 106 is insufficient. When clamping the shorter needle body 8 for insertion, the upper end of the shorter needle body 8 does not enter the clamping cylinder 106 deep enough. As the clamping cylinder 106 and clamping plate 107 move down to insert the needle body 8 into the IGBT module body 7, the needle body 8 is prone to sliding within the clamping cylinder 106 and clamping plate 107, affecting the insertion. Therefore, the electric push rod Ⅲ304 is controlled to drive the pressure plate 305 to move down, so that the pressure plate 305 abuts against the upper end of the shorter needle body 8, improving the insertion effect.

[0047] The present application has been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of the present application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of the present application. Therefore, the content of this specification should not be construed as a limitation of the present application.

Claims

1. An automatic pin insertion machine for IGBT modules, comprising an organism; characterized in that: It also includes a connecting frame (101), an electric turntable (102), a rectangular plate (103), a fixing plate (104), a clamping assembly, and an adjusting assembly; the machine body is connected to the connecting frame (101); the connecting frame (101) is connected to the adjusting assembly; the moving part of the adjusting assembly is connected to several electric turntables (102), and the adjusting assembly is used to adjust the distance between the several electric turntables (102); each electric turntable (102) is connected to a rectangular plate (103), and the rectangular plate (103) is set at a 45-degree angle; each rectangular plate (103) is connected to a fixing plate (104); each fixing plate (104) is connected to a clamping assembly. A clamping assembly for holding the needle body (8); the clamping assembly includes an electric push rod I (105), a clamping cylinder (106), and a clamping plate (107); each fixed plate (104) is connected to two electric push rods I (105); the telescopic end of each electric push rod I (105) located on the same fixed plate (104) is connected to a clamping cylinder (106), and the clamping cylinder (106) is slidably connected to the corresponding fixed plate (104); each clamping cylinder (106) is connected to a clamping plate (107); the clamping cylinder (106) is tapered; it also includes an electric push rod II (201) and a connecting tube (202); each The fixed plate (104) is composed of a connecting plate I (1041) and a connecting plate II (1042) that slide together; one electric push rod I (105) is fixed to the connecting plate I (1041), and another electric push rod I (105) is fixed to the connecting plate II (1042); each electric turntable (102) is fixed to an electric push rod II (201), and the telescopic end of the electric push rod II (201) is fixed to the corresponding connecting plate II (1042), and the connecting plate II (1042) is fixed to the rectangular plate (103); the clamping plate (107) is hollow, and each clamping plate located on the corresponding connecting plate I (1041) is hollow. The inner side of the plate (107) is provided with several round holes (1071); each clamping plate (107) located on the corresponding connecting plate I (1041) is connected to a connecting tube (202); since the rectangular plate (103) is set at a 45-degree angle, compared with the horizontal rectangular plate (103), when the rectangular plate (103) with the angled rectangular plate (103) drives the clamping cylinder (106) and the clamping plate (107) to move down, the distance between the rectangular plate (103) and the surrounding needles (8) is larger, so it is less likely to collide with the needles (8) and cause damage to the needles (8), thus adapting to the small-spaced needles (8) for needle insertion.

2. The automatic pin insertion machine for IGBT modules according to claim 1, characterized in that: Both the clamping cylinder (106) and the clamping plate (107) are made of alloy.

3. The automatic pin insertion machine for IGBT modules according to claim 1, characterized in that: The adjustment assembly includes an electric slide rail (108), a slider (109), a mounting block (1010), a sliding plate (1011), a lead screw (1012), and a motor (1013); a connecting frame (101) is fixedly connected to several electric slide rails (108); each electric slide rail (108) is slidably connected to several block groups; each block group consists of two sliders (109); a slider (109) on the same block group is fixedly connected to a mounting block (1010), and the mounting block (1010) is connected to the corresponding electric turntable (102). Connect; two sliders (109) located on the same block group are jointly fixed to a slide plate (1011), and the slide plate (1011) is slidably connected to the corresponding mounting block (1010); two sliders (109) located on the same block group are jointly rotatably connected to a lead screw (1012), and the lead screw (1012) is slidably connected to the corresponding mounting block (1010); a slider (109) located on the same block group is fixed to a motor (1013), and the output shaft of the motor (1013) is fixed to the corresponding lead screw (1012).

4. The automatic pin insertion machine for IGBT modules according to claim 1, characterized in that: The telescopic ends of the clamping cylinder (106) and the electric push rod I (105) are detachably connected.

5. An automatic pin insertion machine for IGBT modules according to claim 1, characterized in that: A rubber strip is provided on the inner edge of the clamping plate (107).

6. The automatic pin insertion machine for IGBT modules according to claim 1, characterized in that: It also includes spring rod II (301), cone sleeve (302), electric push rod III (304) and pressure plate (305); several spring rods II (301) are fixedly connected to the clamping cylinder (106) on each connecting plate I (1041); a cone sleeve (302) is fixedly connected to the telescopic end of all spring rods II (301) located on the same clamping cylinder (106); an electric push rod III (304) is fixedly connected to the clamping cylinder (106) on each connecting plate I (1041); a pressure plate (305) is fixedly connected to the telescopic end of each electric push rod III (304).

7. The automatic pin insertion machine for IGBT modules according to claim 1, characterized in that: It also includes a distance sensor (303); each of the connecting plates II (1042) and I (1041) is fixed with a distance sensor (303).

Images