Welding fixing device for mechanical manufacturing

Abstract

The invention discloses a mechanical manufacturing welding fixing device which comprises a workbench, a hydraulic cylinder is fixedly connected to the interior of the workbench, the output end of the hydraulic cylinder is fixedly connected with a top plate, the top plate is slidably connected with the workbench, the top plate is fixedly connected with an anti-skid pad, and the workbench is fixedly connected with two symmetrical supporting plates. An electric push rod is fixedly connected to the supporting plate, the output end of the electric push rod is slidably connected with the supporting plate, a supporting seat is fixedly connected to the output end of the electric push rod and makes contact with the supporting plate, a pressing rod is connected into the supporting seat through threads, a pressing block is fixedly connected to the pressing rod, and a connecting plate is slidably connected to the supporting plate. And a sliding seat is slidably connected to the connecting plate. The invention relates to a welding fixing device for mechanical manufacturing. The welding fixing device has the advantage that a to-be-welded part can be conveniently supported and adjusted in the welding process.

Description

Technical Field

[0001] The invention belongs to the technical field of welding fixtures, and in particular relates to a welding fixture for mechanical manufacturing. Background Art

[0002] Welding, also known as fusion, is a manufacturing process and technology that joins metals or other thermoplastic materials such as plastics by heating, high temperature or high pressure. There are many sources of energy for modern welding, including gas flame, arc, laser, electron beam, friction and ultrasonic. In order to achieve better welding results, auxiliary welding devices are used to fix the welded parts during welding.

[0003] The utility model patent with announcement number CN213224878U discloses a welding fixing device for mechanical manufacturing, including a metal plate, a card plate, a support plate, a cross plate, a positioning plate, an insert plate, and a screw. The card plate has a card plate groove, the side of the metal plate is adapted to the card plate groove, the metal plate is inserted into the card plate groove, the upper part of the support plate is connected to the card plate, the card plate is symmetrically arranged on the left and right sides of the metal plate, the support plate has a cross plate groove, the cross plate is adapted to the cross plate groove, the cross plate is inserted into the cross plate groove, two cross plates are distributed on the support plate, the card plate has a limit plate hole, the card plate has a limit plate groove, the limit plate hole corresponds to the limit plate groove, the limit plate passes through the limit plate hole and is inserted into the limit plate groove, the side of the limit plate is connected to the metal plate, and the limit plates are symmetrically arranged on both sides of the metal plate.

[0004] However, the existing welding fixture for mechanical manufacturing needs to manually support the workpieces when welding two workpieces to be welded, which makes the operation inconvenient during the welding work. Therefore, improvement is needed. Summary of the invention

[0005] The purpose of the present invention is to provide a welding fixture for mechanical manufacturing in order to solve the problem that it is inconvenient to support the welded parts during the welding process mentioned in the above background technology.

[0006] In order to solve the above problems, the present invention provides a technical solution: A welding fixture for mechanical manufacturing comprises a workbench, wherein the workbench is fixedly connected with a hydraulic cylinder inside, the output end of the hydraulic cylinder is fixedly connected with a top plate, the top plate is slidably connected to the workbench, the top plate is fixedly connected with an anti-skid pad, and the workbench is fixedly connected with two symmetrical support plates, an electric push rod is fixedly connected with the support plate, the output end of the electric push rod is slidably connected to the support plate, the output end of the electric push rod is fixedly connected with a support seat, the support seat is in contact with the support plate, a pressure rod is threadedly connected inside the support seat, a pressure block is fixedly connected to the pressure rod, a connecting plate is slidably connected to the support plate, a sliding seat is slidably connected to the connecting plate, a fixed seat is fixedly connected to the sliding seat, a push rod is threadedly connected inside the fixed seat, the push rod is in contact with a clamping block, a lifting mechanism is arranged on the support plate, a moving mechanism is arranged on the connecting plate, and a clamping mechanism is arranged on the sliding seat.

[0007] Preferably, the lifting mechanism comprises a dovetail groove, a dovetail groove is provided on the support plate, a dovetail block is slidably connected inside the dovetail groove, the dovetail block is fixedly connected to the connecting plate, a handle is fixedly connected to the connecting plate, a groove is provided on the support plate, a convex block is slidably connected inside the groove, a connecting block is fixedly connected on the convex block, the connecting block is slidably connected to the support plate, the connecting block is slidably connected to the connecting plate, a fixing rod is slidably connected inside the connecting block, the fixing rod is fixedly connected to the connecting plate, and a first spring is arranged on the outer side of the fixing rod. By pulling down the handle, the handle drives the connecting plate to move downward, the connecting plate drives the dovetail block to slide along the dovetail groove, and at the same time, the connecting plate drives the connecting block and the convex block to slide along the support plate, the convex block slides along the inclined surface of the groove and is squeezed, so that the convex block drives the connecting block to move horizontally, the connecting block slides along the fixing rod and squeezes the first spring, so that the convex block can slide out of the groove, when the convex block slides to the groove at another position, under the elastic action of the first spring, the connecting block and the convex block are reset, and the convex block is inserted into the groove at another position, so that the connection plate can be adjusted, which is convenient for adapting to different height parts for welding assistance.

[0008] Preferably, the moving mechanism includes a screw rod, the inside of the connecting plate is connected with a screw rod through a bearing, the outside of the screw rod is connected with a slider through a thread, the slider is slidably connected to the connecting plate, the slider is fixedly connected to the slide seat, the inside of the slider is slidably connected with a guide rod, the guide rod is fixedly connected to the connecting plate, the screw rod is fixedly connected with a first bevel gear, the first bevel gear is meshed with a second bevel gear, the first bevel gear and the second bevel gear are both rotatably connected to the connecting plate, the connecting plate is fixedly connected with a motor, the motor shaft is connected to the connecting plate through a bearing, and the shaft is fixedly connected to the second bevel gear. When it is necessary to adjust the welding position, the motor is started, the motor shaft drives the second bevel gear to rotate, the second bevel gear drives the first bevel gear to rotate, the first bevel gear drives the screw rod to rotate, the screw rod is connected with the slider through a thread, so that the slider performs a threaded motion, the slider moves horizontally along the guide rod, and the horizontal position of the slide seat can be adjusted by controlling the forward and reverse rotation of the motor, which is convenient for welding at different positions of the metal plate, further improving its applicability.

[0009] Preferably, the clamping mechanism includes a connecting seat, the sliding seat is internally slidably connected to two symmetrically arranged connecting seats, the connecting seat is internally slidably connected to a guide rod, the guide rod is fixedly connected to the sliding seat, a second spring is arranged on the outer side of the guide rod, the connecting seat is slidably connected to the clamping block, the connecting seat is internally slidably connected to an insertion block, the insertion block is fixedly connected to a sliding rod, the sliding rod is respectively slidably connected to the connecting seat and the clamping block, a push block is fixedly connected to the sliding rod, the push block is slidably connected to the clamping block, a connecting rod is fixedly connected to the sliding rod, the connecting rod is slidably connected to the clamping block, and a third spring is arranged on the outer side of the connecting rod. When the connecting plate drives the fixed seat to move around the outside of the workpiece and rotates the push rod, the push rod contacts the clamp block and drives the clamp block to move horizontally. The clamp block drives the connecting seat to move horizontally. The connecting seat slides along the guide rod and squeezes the second spring, so that the clamp block clamps and positions the workpiece for welding. When the clamp block needs to be disassembled, the push block is pushed, and the push block drives the sliding rod and the connecting rod to move horizontally. The sliding rod squeezes the third spring. At the same time, the sliding rod drives the insert block to move horizontally and separate from the connecting seat. Then the clamp block can be disassembled and can be replaced with clamp blocks that can adapt to different shapes of workpieces to be welded for clamping and positioning, thereby improving its applicability.

[0010] Preferably, the number of the grooves is multiple, and the multiple grooves are evenly distributed on the support plate. By designing multiple grooves, the protrusion can slide into the grooves at different positions.

[0011] Preferably, one end of the first spring is fixedly connected to the connecting plate, and the other end of the first spring is fixedly connected to the connecting block. By designing the first spring, the acting force of the first spring can act on the connecting block.

[0012] Preferably, one end of the second spring is fixedly connected to one of the connection seats, and the other end of the second spring is fixedly connected to the other connection seat. By designing the second spring, the force of the second spring can act on the connection seat.

[0013] Preferably, one end of the third spring is fixedly connected to the slide bar, and the other end of the third spring is fixedly connected to the clamping block. By designing the third spring, the force of the third spring can act on the slide bar.

[0014] The beneficial effects of the present invention are as follows: the present invention relates to a welding fixture for mechanical manufacturing, which has the characteristics of conveniently supporting and adjusting the welded parts during the welding process. In specific use, compared with the traditional welding fixture for mechanical manufacturing, the welding fixture for mechanical manufacturing has the following beneficial effects: Firstly, the electric push rod is designed to drive the support seat to move horizontally, so as to limit the horizontal direction of the metal plate, and the pressure rod and the pressure block can limit the vertical direction of the metal plate, so as to fix the metal plate, and the clamping block can be pushed by the top rod to move horizontally to clamp and position the workpiece to be welded with the metal plate, so as to assist in supporting welding, facilitate the welding of the workpiece and the metal plate, and no manual support is required. The clamping block can be easily disassembled and replaced with a clamping block suitable for clamping and positioning of workpieces to be welded in different shapes, thereby improving its applicability. Secondly, by designing the sliding connection between the dovetail block and the dovetail groove, the sliding connection between the connecting block and the support plate, and the sliding connection between the protrusion and the groove, the connecting plate can be moved in the vertical direction by pulling or pushing the handle, and the height of the parts clamped by the clamp can be adjusted, which is convenient for assisting welding of parts of different heights. Through the action of the motor, the motor can drive the screw to rotate, and the threaded movement of the slider can be realized, and then the horizontal position of the parts clamped by the clamp can be adjusted, which is convenient for welding at different positions of the metal plate, further improving its applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] For ease of explanation, the present invention is described in detail with reference to the following specific implementations and the accompanying drawings.

[0016] Figure 1 It is a three-dimensional diagram of the overall structure of the present invention; Figure 2 For the present invention Figure 1 A front cross-sectional view of Figure 3 For the present invention Figure 2 A top view of the local structure of the support plate; Figure 4 For the present invention Figure 2 A magnified image of point A; Figure 5 For the present invention Figure 2A magnified view of point B; Figure 6 For the present invention Figure 2 Enlarged view of point C.

[0017] In the figure: 1, workbench; 2, hydraulic cylinder; 3, top plate; 4, anti-skid pad; 5, support plate; 6, electric push rod; 7, lifting mechanism; 8, moving mechanism; 9, clamping mechanism; 10, support seat; 11, pressure rod; 12, pressure block; 13, connecting plate; 14, slide seat; 15, fixed seat; 16, push rod; 17, clamping block; 71, dovetail groove; 72, dovetail block; 73, handle; 74, groove; 75, convex block; 76, connecting block; 77, fixing rod; 78, first spring; 81, screw; 82, slider; 83, guide rod; 84, first bevel gear; 85, second bevel gear; 86, rotating shaft; 87, motor; 91, connecting seat; 92, guide rod; 93, second spring; 94, plug block; 95, slide rod; 96, push block; 97, connecting rod; 98, third spring. DETAILED DESCRIPTION

[0018] like Figure 1-6 As shown, this specific implementation adopts the following technical solutions: Example: A welding fixture for mechanical manufacturing comprises a workbench 1, wherein a hydraulic cylinder 2 is fixedly connected inside the workbench 1, an output end of the hydraulic cylinder 2 is fixedly connected to a top plate 3, the top plate 3 is slidably connected to the workbench 1, an anti-skid pad 4 is fixedly connected to the top plate 3, two symmetrical support plates 5 are fixedly connected to the workbench 1, an electric push rod 6 is fixedly connected to the support plate 5, the output end of the electric push rod 6 is slidably connected to the support plate 5, a support seat 10 is fixedly connected to the output end of the electric push rod 6, the support seat 10 contacts the support plate 5, a pressure rod 11 is threadedly connected inside the support seat 10, a pressure block 12 is fixedly connected to the pressure rod 11, a connecting plate 13 is slidably connected to the support plate 5, a sliding seat 14 is slidably connected to the connecting plate 13, a fixed seat 15 is fixedly connected to the sliding seat 14, a push rod 16 is threadedly connected inside the fixed seat 15, a clamping block 17 is contacted on the push rod 16, a lifting mechanism 7 is provided on the support plate 5, a moving mechanism 8 is provided on the connecting plate 13, and a clamping mechanism 9 is provided on the sliding seat 14.

[0019] Among them, the lifting mechanism 7 includes a dovetail groove 71, a dovetail groove 71 is provided on the support plate 5, a dovetail block 72 is slidably connected inside the dovetail groove 71, the dovetail block 72 is fixedly connected to the connecting plate 13, and a handle 73 is fixedly connected to the connecting plate 13, a groove 74 is provided on the support plate 5, a protrusion 75 is slidably connected inside the groove 74, a connecting block 76 is fixedly connected to the protrusion 75, the connecting block 76 is slidably connected to the support plate 5, the connecting block 76 is slidably connected to the connecting plate 13, a fixing rod 77 is slidably connected inside the connecting block 76, the fixing rod 77 is fixedly connected to the connecting plate 13, and a first spring 78 is arranged on the outer side of the fixing rod 77. By pulling down the handle 73, the handle 73 drives the connecting plate 13 to move downward, and the connecting plate 13 drives the dovetail block 72 to slide along the dovetail groove 71. At the same time, the connecting plate 13 drives the connecting block 76 and the protrusion 75 to slide along the support plate 5. The protrusion 75 slides along the inclined surface of the groove 74 and is squeezed, so that the protrusion 75 drives the connecting block 76 to move horizontally. The connecting block 76 slides along the fixing rod 77 and squeezes the first spring 78, so that the protrusion 75 can slide out of the groove 74. When the protrusion 75 slides to the groove 74 at another position, the elastic action of the first spring 78 makes the connecting block 76 and the protrusion 75 reset, and the protrusion 75 is inserted into the groove 74 at another position, so that the adjustment of the connecting plate 13 is completed, which is convenient for adapting to the welding assistance of parts of different heights.

[0020] Among them, the moving mechanism 8 includes a screw 81, the screw 81 is connected to the inside of the connecting plate 13 through a bearing, the outer side of the screw 81 is connected to a slider 82 through a thread, the slider 82 is slidably connected to the connecting plate 13, the slider 82 is fixedly connected to the slide seat 14, the inside of the slider 82 is slidably connected to a guide rod 83, the guide rod 83 is fixedly connected to the connecting plate 13, a first bevel gear 84 is fixedly connected to the screw 81, a second bevel gear 85 is meshed on the first bevel gear 84, the first bevel gear 84 and the second bevel gear 85 are both rotatably connected to the connecting plate 13, a motor 87 is fixedly connected to the connecting plate 13, a rotating shaft 86 of the motor 87 is connected to the connecting plate 13 through a bearing, and the rotating shaft 86 is fixedly connected to the second bevel gear 85. When the welding position needs to be adjusted, the motor 87 is started, and the rotating shaft 86 of the motor 87 drives the second bevel gear 85 to rotate, and the second bevel gear 85 drives the first bevel gear 84 to rotate, and the first bevel gear 84 drives the screw 81 to rotate. Through the threaded connection between the screw 81 and the slider 82, the slider 82 makes a threaded motion, and the slider 82 moves horizontally along the guide rod 83. The horizontal position of the slide 14 can be adjusted by controlling the forward and reverse rotation of the motor 87, which is convenient for welding at different positions of the metal plate, further improving its applicability.

[0021] Among them, the clamping mechanism 9 includes a connecting seat 91, the internal sliding connection of the sliding seat 14 is connected to two symmetrically arranged connecting seats 91, the internal sliding connection of the connecting seat 91 is connected to a guide rod 92, the guide rod 92 is fixedly connected to the sliding seat 14, and a second spring 93 is arranged on the outer side of the guide rod 92, the connecting seat 91 is slidably connected to the clamping block 17, the internal sliding connection of the connecting seat 91 is connected to an insert block 94, the insert block 94 is fixedly connected to a sliding rod 95, the sliding rod 95 is respectively slidably connected to the connecting seat 91 and the clamping block 17, the sliding rod 95 is fixedly connected to a push block 96, the push block 96 is slidably connected to the clamping block 17, the sliding rod 95 is fixedly connected to a connecting rod 97, the connecting rod 97 is slidably connected to the clamping block 17, and a third spring 98 is arranged on the outer side of the connecting rod 97. When the connecting plate 13 drives the fixed seat 15 to move and sleeve on the outside of the workpiece, the top rod 16 is rotated, and the contact between the top rod 16 and the clamping block 17 will drive the clamping block 17 to move horizontally, and the clamping block 17 drives the connecting seat 91 to move horizontally. The connecting seat 91 slides along the guide rod 92 and squeezes the second spring 93, so that the clamping block 17 clamps and positions the workpiece to perform welding work. When it is necessary to disassemble the clamping block 17, the push block 96 is pushed, and the push block 96 drives the sliding rod 95 and the connecting rod 97 to move horizontally, and the sliding rod 95 squeezes the third spring 98. At the same time, the sliding rod 95 drives the insert block 94 to move horizontally and separate from the connecting seat 91. Then the clamping block 17 can be disassembled and can be replaced with a clamping block 17 that can clamp and position parts of different shapes to be welded, thereby improving its applicability.

[0022] There are multiple grooves 74, and the multiple grooves 74 are evenly distributed on the support plate 5. By designing multiple grooves 74, the protrusions 75 can slide into the grooves 74 at different positions.

[0023] One end of the first spring 78 is fixedly connected to the connecting plate 13, and the other end of the first spring 78 is fixedly connected to the connecting block 76. By designing the first spring 78, the force of the first spring 78 can act on the connecting block 76.

[0024] One end of the second spring 93 is fixedly connected to one of the connection seats 91, and the other end of the second spring 93 is fixedly connected to the other connection seat 91. By designing the second spring 93, the force of the second spring 93 can act on the connection seat 91.

[0025] One end of the third spring 98 is fixedly connected to the slide bar 95, and the other end of the third spring 98 is fixedly connected to the clamping block 17. By designing the third spring 98, the force of the third spring 98 can act on the slide bar 95.

[0026] The use state of the present invention is as follows: when it is used, when it is necessary to weld the metal plate, the metal plate is first placed on the surface of the anti-skid pad 4, and then the output end of the hydraulic cylinder 2 drives the top plate 3 and the anti-skid pad 4 to move upward, lifts the metal plate to the support seat 10, and then pushes the metal plate so that the metal plate slides into the support seat 10, and then the output end of the electric push rod 6 drives the support seat 10 to move horizontally so that the support seat 10 clamps the metal plate, and the output end of the hydraulic cylinder 2 drives the top plate 3 and the anti-skid pad 4 to reset, and then the pressure rod 11 is rotated to make the pressure block 12 move downward by threading to press the metal plate downward for positioning, so that the metal plate can be limited in the horizontal and vertical directions, and then the workpiece to be welded is placed on the metal plate, and then the handle 73 is pulled down. The handle 73 drives the connecting plate 13 to move downward, and the connecting plate 13 drives the dovetail block 72 to slide along the dovetail groove 71. At the same time, the connecting plate 13 drives the connecting block 76 and the protrusion 75 to slide along the support plate 5. The protrusion 75 slides along the inclined surface of the groove 74 and is squeezed, so that the protrusion 75 drives the connecting block 76 to move horizontally. The connecting block 76 slides along the fixing rod 77 and squeezes the first spring 78, so that the protrusion 75 can slide out of the groove 74. When the protrusion 75 slides to the groove 74 at another position, the elastic action of the first spring 78 makes the connecting block 76 and the protrusion 75 reset, and the protrusion 75 is inserted into the groove 74 at another position, so that the adjustment of the connecting plate 13 can be completed, which is convenient for adapting to parts of different heights for welding assistance. When the connecting plate 13 drives the fixed seat 15 to move and sleeve on the outside of the workpiece, the push rod 16 is rotated, and the push rod 16 contacts the clamping block 17 to drive the clamping block 17 to move horizontally, and the clamping block 17 drives the connecting seat 91 to move horizontally, and the connecting seat 91 slides along the guide rod 92 and squeezes the second spring 93, so that the clamping block 17 clamps and positions the workpiece, and the welding work of the workpiece can be carried out. When it is necessary to disassemble the clamping block 17, push the push block 96, and the push block 96 drives the slide bar 95 and the connecting rod 97 to move horizontally, and the slide bar 95 squeezes the third spring 98, and at the same time, the slide bar 95 drives the insert block 94 to move horizontally and separate from the connecting seat 91, and then the clamping block 17 can be disassembled, and can be replaced with a clamping block 17 that adapts to different shapes of the welded parts to clamp and position, thereby improving its applicability. When the welding position needs to be adjusted, the motor 87 is started, and the rotating shaft 86 of the motor 87 drives the second bevel gear 85 to rotate, and the second bevel gear 85 drives the first bevel gear 84 to rotate, and the first bevel gear 84 drives the screw 81 to rotate. Through the threaded connection between the screw 81 and the slider 82, the slider 82 makes a threaded motion, and the slider 82 moves horizontally along the guide rod 83. The horizontal position of the slide 14 can be adjusted by controlling the forward and reverse rotation of the motor 87, which is convenient for welding at different positions of the metal plate, further improving its applicability.

Claims

1. A welding fixture for mechanical manufacturing, comprising a workbench (1), characterized in that: The workbench (1) is fixedly connected to a hydraulic cylinder (2) inside, the output end of the hydraulic cylinder (2) is fixedly connected to a top plate (3), the top plate (3) is slidably connected to the workbench (1), the top plate (3) is fixedly connected to an anti-slip pad (4), the workbench (1) is fixedly connected to two symmetrical support plates (5), the support plates (5) are fixedly connected to an electric push rod (6), the output end of the electric push rod (6) is slidably connected to the support plate (5), the output end of the electric push rod (6) is fixedly connected to a support seat (10), the support seat (10) is in contact with the support plate (5), and the support seat (10) is fixedly connected to the support plate (5). ) is connected to a pressure rod (11) via a threaded connection inside, a pressure block (12) is fixedly connected to the pressure rod (11), a connecting plate (13) is slidably connected to the support plate (5), a sliding seat (14) is slidably connected to the connecting plate (13), a fixed seat (15) is fixedly connected to the sliding seat (14), a push rod (16) is connected to the inside of the fixed seat (15) via a threaded connection, a clamping block (17) is in contact with the push rod (16), a lifting mechanism (7) is provided on the support plate (5), a moving mechanism (8) is provided on the connecting plate (13), and a clamping mechanism (9) is provided on the sliding seat (14).

2. A welding fixture for mechanical manufacturing according to claim 1, characterized in that: The lifting mechanism (7) comprises a dovetail groove (71), the support plate (5) is provided with a dovetail groove (71), a dovetail block (72) is slidably connected inside the dovetail groove (71), the dovetail block (72) is fixedly connected to the connecting plate (13), the connecting plate (13) is fixedly connected with a handle (73), the support plate (5) is provided with a groove (74), a protrusion (75) is slidably connected inside the groove (74), a connecting block (76) is fixedly connected to the protrusion (75), the connecting block (76) is slidably connected to the support plate (5), the connecting block (76) is slidably connected to the connecting plate (13), a fixing rod (77) is slidably connected inside the connecting block (76), the fixing rod (77) is fixedly connected to the connecting plate (13), and a first spring (78) is arranged on the outer side of the fixing rod (77).

3. The welding fixture for mechanical manufacturing according to claim 1, characterized in that: The moving mechanism (8) comprises a screw rod (81), the screw rod (81) is connected to the inside of the connecting plate (13) via a bearing, a slider (82) is connected to the outside of the screw rod (81) via a thread, the slider (82) is slidably connected to the connecting plate (13), the slider (82) is fixedly connected to the slide seat (14), a guide rod (83) is slidably connected to the inside of the slider (82), the guide rod (83) is fixedly connected to the connecting plate (13), a first bevel gear (84) is fixedly connected to the screw rod (81), a second bevel gear (85) is meshed with the first bevel gear (84), the first bevel gear (84) and the second bevel gear (85) are both rotatably connected to the connecting plate (13), a motor (87) is fixedly connected to the connecting plate (13), a rotating shaft (86) of the motor (87) is connected to the connecting plate (13) via a bearing, and the rotating shaft (86) is fixedly connected to the second bevel gear (85).

4. The welding fixture for mechanical manufacturing according to claim 1, characterized in that: The clamping mechanism (9) comprises a connecting seat (91), the sliding seat (14) is internally slidably connected to two symmetrically arranged connecting seats (91), the connecting seat (91) is internally slidably connected to a guide rod (92), the guide rod (92) is fixedly connected to the sliding seat (14), a second spring (93) is arranged on the outer side of the guide rod (92), the connecting seat (91) is slidably connected to a clamping block (17), the connecting seat (91) is internally slidably connected to an inserting block (94), the inserting block (94) is fixedly connected to a sliding rod (95), the sliding rod (95) is slidably connected to the connecting seat (91) and the clamping block (17), a push block (96) is fixedly connected to the sliding rod (95), the push block (96) is slidably connected to the clamping block (17), a connecting rod (97) is fixedly connected to the sliding rod (95), the connecting rod (97) is slidably connected to the clamping block (17), and a third spring (98) is arranged on the outer side of the connecting rod (97).

5. The welding fixture for mechanical manufacturing according to claim 2, characterized in that: There are a plurality of grooves (74), and the plurality of grooves (74) are evenly distributed on the support plate (5).

6. A welding fixture for mechanical manufacturing according to claim 2, characterized in that: One end of the first spring (78) is fixedly connected to the connecting plate (13), and the other end of the first spring (78) is fixedly connected to the connecting block (76).

7. A welding fixture for mechanical manufacturing according to claim 4, characterized in that: One end of the second spring (93) is fixedly connected to one of the connection seats (91), and the other end of the second spring (93) is fixedly connected to the other connection seat (91).

8. The welding fixture for mechanical manufacturing according to claim 4, characterized in that: One end of the third spring (98) is fixedly connected to the slide rod (95), and the other end of the third spring (98) is fixedly connected to the clamping block (17).

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