Welding device for pin shaft product production and machining

Abstract

The invention discloses a welding device for pin shaft product production and machining, and relates to the technical field of pin shaft production. The welding device for pin shaft product production and machining comprises a welding bin, a movable clamping base is assembled in the welding bin, and a rotating piece driven by a servo motor is rotationally connected into the welding bin; the movable welding head is assembled on the side surface of the rotating part; a first hydraulic bin is assembled on the outer side of the rotating piece. According to the welding device for pin shaft product production and machining, a shaft seat and a shaft body are preliminarily fixed, a rotating piece and a movable welding head are started, and when the connecting position of the shaft seat and the shaft body is subjected to rapid rotating welding, a first hydraulic bin, a first spring, a sliding block, an arc-shaped plate, a second hydraulic bin, a first stress rod, a push rod and a second spring are matched; the first auxiliary supporting base moves to the side face position of the pin shaft to support the pin shaft, the supporting effect of the device between a shaft base and a shaft body of the pin shaft is improved, and therefore the welding effect of the device is improved.

Description

Technical Field

[0001] This invention relates to the field of pin manufacturing technology, specifically a welding device for the production and processing of pin products. Background Technology

[0002] Welding equipment manufacturing is an industry involving multiple technical fields, primarily focusing on the production of various welding tools and equipment used to join metal materials. There are many types of welding equipment, depending on the welding method, including arc welding, gas shielded welding, laser welding, spot welding, friction welding, and others. In the production and processing of pins, welding operations are often required to ensure the product's strength, stability, and durability. In traditional pin production, the welding process involves high-level equipment and technical requirements, especially when handling workpieces like pins with complex shapes and varying material requirements.

[0003] Chinese patent CN104325249A, authorized and published on February 4, 2015, discloses a pin welding fixture, which includes a chuck jaws. A support connecting plate is fixed to the upper surface of a three-jaw chuck on the left side by two locking screws. The support connecting plate is L-shaped, and an insulating plate is fixed on the upper surface of the support connecting plate. Three adjusting screws are provided at the left end of the support connecting plate. A column passes vertically through the support connecting plate, and a duckbill-shaped clamping structure parallel to the support connecting plate is provided at the upper end of the column. The left end of the duckbill-shaped clamping structure is fixed to the column by two adjusting screws, and the right end is fixed to the pin plate by a locking screw.

[0004] In the aforementioned application document, a fastener is first used to fix the pin, and then a welding head is used to weld the pin. However, when the device is welding the pin's seat and shaft body, the welding head rotates rapidly over the gap, resulting in poor support between the pin's seat and shaft body, thus affecting the welding effect. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a welding device for manufacturing and processing pin products, solving the problems mentioned in the background section. To achieve the above objectives, this invention provides the following technical solution: a welding device for manufacturing and processing pin products, comprising: A welding chamber, wherein a movable clamping seat is installed inside the welding chamber, and a rotating component driven by a servo motor is rotatably connected inside the welding chamber; A movable welding head, which is mounted on the side of a rotating component; The outer side of the rotating component is equipped with a hydraulic chamber one, and the inner side of the rotating component is equipped with a through hydraulic chamber two. The side of the hydraulic chamber two is slidably connected to a push rod via a piston. A transmission component for transmission is assembled between the hydraulic chamber one and the push rod. The side of the push rod is rotatably connected to an auxiliary support seat one. The inside of the welding chamber is equipped with a stabilizing component for maintaining the stability of the pin shaft. The inside of the welding chamber is equipped with a cleaning component for cleaning welding slag.

[0006] Preferably, the transmission component includes a spring 1 assembled inside the hydraulic chamber 1. A sliding block is slidably connected to the interior of the hydraulic chamber 1 via a piston. An arc-shaped plate is slidably connected to the side of the hydraulic chamber 1 via a piston. A force-bearing rod 1 is slidably connected to the end of the hydraulic chamber 2 away from the push rod via a piston. A spring 2 is assembled at the bottom of the force-bearing rod 1. This device configuration allows the auxiliary support seat 1 to be moved to the side of the pin during rapid rotational welding at the connection between the pin seat and the shaft body, providing support and improving the support effect between the pin seat and the shaft body, thereby improving the welding effect.

[0007] Preferably, the end of the spring away from the hydraulic chamber is mounted on the sliding block.

[0008] Preferably, the force-bearing rod is located at the bottom of the arc-shaped plate and is in contact with the arc-shaped plate.

[0009] Preferably, the stabilizing component includes a hydraulic chamber three assembled inside the welding chamber. One end of the hydraulic chamber three is slidably connected to a force-bearing rod two via a piston, and the other end of the hydraulic chamber three is slidably connected to a transmission rod one via a piston. A spring three is assembled on the top of the force-bearing rod two. A rotating block is rotatably connected to the side of the welding chamber. A connecting rod one and a connecting rod two are fixedly connected to the rotating block. A transmission rod two is hinged to the side of the connecting rod two, and an auxiliary support seat two is fixedly connected to the side of the transmission rod two. By setting up the stabilizing component, the auxiliary support seat two can move to the side of the pin, providing auxiliary support for the pin in the clamping seat, thereby improving the stability of the device when welding the pin.

[0010] Preferably, the second force-bearing rod is located at the top of the arc-shaped plate and is in contact with the arc-shaped plate.

[0011] Preferably, the connecting rod is located on the side of the transmission rod and is hinged to the transmission rod.

[0012] Preferably, the cleaning assembly includes a first bevel gear fixed to the outside of the rotating component; a rotating shaft is rotatably connected to the side of the welding chamber; a second bevel gear and a first sprocket are fixedly connected to the outside of the rotating shaft; a chain is mounted on the outside of the first sprocket; a reciprocating screw is rotatably connected to the side of the welding chamber; a second sprocket is fixedly connected to the outside of the reciprocating screw; a sliding seat is slidably connected to the side of the welding chamber; a brush plate is mounted on the side of the sliding seat; and a pull-out storage compartment is installed inside the welding chamber. By configuring the cleaning assembly, welding slag in the welding chamber can be cleaned into the storage compartment, making the device easier to use.

[0013] Preferably, the second bevel gear is located on the side of the first bevel gear and is in mesh with the first bevel gear.

[0014] Preferably, the end of the chain furthest from the first sprocket is fitted to the outer side of the second sprocket.

[0015] This invention provides a welding device for manufacturing and processing pin products. It has the following advantages: (1) The welding device for the production and processing of the pin shaft product initially fixes the shaft seat and shaft body. When the rotating parts and movable welding head are used to quickly rotate and weld the connection between the shaft seat and shaft body, the device works with hydraulic chamber one, spring one, sliding block, arc plate, hydraulic chamber two, force rod one, push rod and spring two to move the auxiliary support seat one to the side position of the pin shaft for support, thereby improving the support effect of the device between the shaft seat and shaft body of the pin shaft and thus improving its welding effect.

[0016] (2) The welding device for the production and processing of the pin shaft product, when the arc plate extends synchronously during rotation, cooperates with the hydraulic chamber three, the force rod two, the transmission rod one, the spring three, the rotating block, the connecting rod one, the connecting rod two and the transmission rod two to move the auxiliary support seat two to the side of the pin shaft, and provide auxiliary support for the pin shaft in the clamping seat, thereby improving the stability of the device when welding the pin shaft.

[0017] (3) The welding device for the production and processing of the pin shaft product can drive the bevel gear one that is fixedly connected to it to rotate when the rotating part rotates. With the help of the rotating shaft, bevel gear two, sprocket one, chain, reciprocating screw, sprocket two, sliding seat and brush plate, the welding slag in the welding chamber can be cleaned into the storage, making the device easier to use. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the overall appearance of the present invention; Figure 2 This is a schematic diagram of the overall cross-sectional three-dimensional structure of the present invention; Figure 3 This is a schematic diagram of the overall cross-sectional three-dimensional structure from another perspective of the present invention; Figure 4 This is a three-dimensional structural diagram of some parts of the present invention; Figure 5 This is a three-dimensional structural diagram of some parts of the present invention; Figure 6 This is a three-dimensional structural diagram of the stable component of the present invention; Figure 7 This is a three-dimensional structural diagram of some parts of the stabilizing component of the present invention; Figure 8 This is a three-dimensional structural diagram of the cleaning component of the present invention.

[0019] In the picture: 100. Welding chamber; 200. Clamping seat; 300. Rotating component; 400. Movable welding head; 501. Hydraulic chamber one; 502. Spring one; 503. Sliding block; 504. Arc plate; 505. Hydraulic chamber two; 506. Force rod one; 507. Push rod; 508. Spring two; 509. Auxiliary support seat one; 600. Stabilizing component; 601. Hydraulic chamber three; 602. Force-bearing rod two; 603. Transmission rod one; 604. Spring three; 605. Rotating block; 606. Connecting rod one; 607. Connecting rod two; 608. Transmission rod two; 609. Auxiliary support seat two; 700. Cleaning component; 701. Bevel gear one; 702. Shaft; 703. Bevel gear two; 704. Sprocket one; 705. Chain; 706. Reciprocating screw; 707. Sprocket two; 708. Sliding seat; 709. Brush plate; 710. Storage compartment. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0021] Example 1, please refer to Figures 1-5 A welding device for manufacturing and processing pin products, comprising: The welding chamber 100 has a movable clamping seat 200 inside, and a rotating component 300 driven by a servo motor is rotatably connected inside the welding chamber 100. The movable welding head 400 is mounted on the side of the rotating part 300; A hydraulic chamber 501 is mounted on the outer side of the rotating component 300. By moving the clamping seat 200, the shaft seat and shaft body of the pin are placed between the two clamping seats 200 respectively. By resetting the clamping seat 200, the shaft seat and shaft body can be initially fixed. When the rotating component 300 and the movable welding head 400 are used to perform rapid rotational welding at the connection between the shaft seat and shaft body, the rapidly rotating rotating component 300 can drive the hydraulic chamber 501 mounted on its outer side to rotate rapidly.

[0022] The rotating component 300 is internally fitted with a through hydraulic chamber 2 505. A push rod 507 is slidably connected to the side of the hydraulic chamber 2 505 via a piston. A transmission component for transmission is fitted between the hydraulic chamber 1 501 and the push rod 507. The transmission component includes a spring 1 502 fitted inside the hydraulic chamber 1 501. A sliding block 503 is slidably connected to the inside of the hydraulic chamber 1 501 via a piston. The end of the spring 1 502 away from the hydraulic chamber 1 501 is fitted onto the sliding block 503. An arc-shaped plate 504 is slidably connected to the side of the hydraulic chamber 1 501 via a piston. A force-bearing rod 1 506 is slidably connected to the end of the hydraulic chamber 2 505 away from the push rod 507 via a piston. The force-bearing rod 1 506 is located at the bottom of the arc-shaped plate 504 and is in contact with the arc-shaped plate 504. When hydraulic chamber 501 rotates rapidly, the sliding block 503 located inside hydraulic chamber 501 can stretch spring 502 under the action of centrifugal force and move along the inner wall of hydraulic chamber 501. In conjunction with hydraulic chamber 501 which is slidably connected to hydraulic chamber 501 by a piston, the sliding block 503 can squeeze the oil originally stored in hydraulic chamber 501 during the movement. The oil in hydraulic chamber 501 is squeezed and flows towards the side closer to the arc plate 504, causing the arc plate 504, which is slidably connected to hydraulic chamber 501 by a piston, to extend out of hydraulic chamber 501. The arc plate 504 extends synchronously when rotating, which can squeeze the force rod 506 and cause the force rod 506 to move downward. In conjunction with hydraulic chamber 505 which is slidably connected to force rod 506 by a piston, the force rod 506 squeezes the oil originally stored in hydraulic chamber 505 when it moves downward.

[0023] A spring 508 is fitted to the bottom of the force-bearing rod 506, and an auxiliary support seat 509 is rotatably connected to the side of the push rod 507. When the oil originally stored in the hydraulic chamber 505 is squeezed, the oil flows towards the push rod 507, causing the push rod 507, which is slidably connected to the hydraulic chamber 505 via a piston, to move out of the hydraulic chamber 505. The push rod 507 then moves the auxiliary support seat 509, which is rotatably connected to it, to support the pin in the clamping seat 200, improving the support effect between the pin's bearing and shaft body, thereby improving the welding effect.

[0024] After the welding operation is completed, when the rotating part 300 and the movable welding head 400 stop rotating, the sliding block 503 loses the centrifugal force and can be reset under the action of spring 502. Similarly, the arc plate 504 is reset, the force rod 506 loses the effect of the arc plate 504 and can be reset under the action of spring 508. Similarly, the auxiliary support seat 509 and the push rod 507 are reset.

[0025] In use, move the clamping seat 200 to place the pin seat and shaft body between the two clamping seats 200 respectively, and then reset the clamping seat 200 to initially fix the pin seat and shaft body. When using the rotating component 300 and the movable welding head 400 to perform rapid rotational welding at the connection between the pin seat and shaft body, the rapidly rotating component 300 will drive the hydraulic chamber 501 mounted on its outer side to rotate rapidly. When the hydraulic chamber 501 rotates rapidly, the sliding block 503 located inside the hydraulic chamber 501 will be subjected to centrifugal force. The tension spring 502 moves along the inner wall of the hydraulic chamber 501. In conjunction with the hydraulic chamber 501, which is slidably connected to it via a piston, the sliding block 503, during its movement, compresses the oil stored in the hydraulic chamber 501. This compression forces the oil to flow towards the arc-shaped plate 504, causing the arc-shaped plate 504, which is slidably connected to the hydraulic chamber 501 via a piston, to extend out of the hydraulic chamber 501. The arc-shaped plate 504 rotates... When the rod extends synchronously, it can compress the first force rod 506 and drive it downward. This, in conjunction with the second hydraulic chamber 505 which is slidably connected to the first force rod 506 via a piston, causes the first force rod 506 to compress the oil stored in the second hydraulic chamber 505 as it moves downward. The compressed oil in the second hydraulic chamber 505 flows towards the push rod 507, causing the push rod 507, which is slidably connected to the second hydraulic chamber 505 via a piston, to move out of the second hydraulic chamber 505. The push rod 507 then drives... The auxiliary support seat 509, which is rotatably connected to it, moves to support the pin in the clamping seat 200. After the welding operation is completed, when the rotating part 300 and the movable welding head 400 stop rotating, the sliding block 503 loses the centrifugal force and can be reset under the action of the spring 502. Similarly, the arc plate 504 is reset, and the force rod 506 loses the effect of the arc plate 504 and can be reset under the action of the spring 508. Similarly, the auxiliary support seat 509 and the push rod 507 are reset.

[0026] Example 2, please refer to Figures 1-7Based on Embodiment 1, the welding chamber 100 is internally equipped with a stabilizing component 600 for maintaining the stability of the pin. The stabilizing component 600 includes a hydraulic chamber 3 601 installed inside the welding chamber 100. One end of the hydraulic chamber 3 601 is slidably connected to a force-bearing rod 2 602 via a piston. The force-bearing rod 2 602 is located at the top of the arc-shaped plate 504 and is in contact with the arc-shaped plate 504. When the arc-shaped plate 504 extends synchronously during rotation, the arc-shaped plate 504 can squeeze the force-bearing rod 2 602 and drive the force-bearing rod 2 602 to move upward. In conjunction with the hydraulic chamber 3 601, which is slidably connected to the force-bearing rod 2 602 via a piston, the force-bearing rod 2 602 moves into the hydraulic chamber 3 601, squeezing the oil originally stored in the hydraulic chamber 3 601.

[0027] The other end of the hydraulic chamber 3 601 is slidably connected to a transmission rod 1 603 via a piston. A spring 3 604 is mounted on the top of the force-bearing rod 2 602. A rotating block 605 is rotatably connected to the side of the welded chamber 100. Connecting rod 1 606 and connecting rod 2 607 are fixedly connected to the rotating block 605. Connecting rod 1 606 is located to the side of transmission rod 1 603 and is hinged to it. When the oil originally stored in the hydraulic chamber 3 601 is compressed, it flows towards the side closer to transmission rod 1 603, causing transmission rod 1 603, which is slidably connected to the hydraulic chamber 3 601 via a piston, to move. Transmission rod 1 603 then moves connecting rod 1 606, which in turn moves rotating block 605, which in turn moves connecting rod 2 607.

[0028] A transmission rod 608 is hinged to the side of the connecting rod 607, and an auxiliary support seat 609 is fixedly connected to the side of the transmission rod 608. When the connecting rod 607 moves, it causes the transmission rod 608 to move laterally. The transmission rod 608 then moves the auxiliary support seat 609, which is fixedly connected to it. The auxiliary support seat 609 can then move to the side of the pin, providing auxiliary support for the pin within the clamping seat 200, thus improving the stability of the device when welding the pin.

[0029] When the arc plate 504 is reset, the force rod 602 loses the effect of the arc plate 504 and can be reset under the action of the spring 604. Similarly, the auxiliary support seat 609 and the transmission rod 608 are reset.

[0030] In use, based on Embodiment 1, when the arc plate 504 extends synchronously during rotation, the arc plate 504 can squeeze the second force rod 602 and drive the second force rod 602 to move upward. This, in conjunction with the hydraulic chamber 601 which is slidably connected to the second force rod 602 via a piston, causes the second force rod 602 to move into the hydraulic chamber 601, squeezing the oil originally stored in the hydraulic chamber 601. The squeezed oil flows towards the side closer to the transmission rod 603, driving the transmission rod 603, which is slidably connected to the hydraulic chamber 601 via a piston, to move. The transmission rod 603 then drives the connecting rod 606, which is hinged to it, to move, thus connecting... The connecting rod 606 drives the rotating block 605, which is fixedly connected to it, to rotate. The rotating block 605 drives the connecting rod 607, which is fixedly connected to it, to move. This causes the connecting rod 607 to drive the transmission rod 608, which is hinged to it, to move to the side. The transmission rod 608 then drives the auxiliary support seat 609, which is fixedly connected to it, to move. The auxiliary support seat 609 can then move to the side of the pin to provide auxiliary support for the pin in the clamping seat 200. When the arc plate 504 is reset, the force rod 602 loses the effect of the arc plate 504 and can be reset under the action of the spring 604. Similarly, the auxiliary support seat 609 and the transmission rod 608 are reset.

[0031] Example 3, please refer to Figures 1-8 Based on Embodiments 1 and 2, the welding chamber 100 is equipped with a cleaning assembly 700 for cleaning welding slag. The cleaning assembly 700 includes a bevel gear 701 fixed to the outside of the rotating component 300. A rotating shaft 702 is rotatably connected to the side of the welding chamber 100. A bevel gear 703 and a sprocket 704 are fixedly connected to the outside of the rotating shaft 702. The bevel gear 703 is located to the side of the bevel gear 701 and is meshed with the bevel gear 701. When the rotating component 300 rotates, it drives the bevel gear 701 fixedly connected to it to rotate, which in turn drives the bevel gear 703 meshing with it to rotate. The bevel gear 703 drives the rotating shaft 702 fixedly connected to it to rotate, which in turn drives the sprocket 704 fixedly connected to it to rotate.

[0032] A chain 705 is mounted on the outer side of sprocket 1 704. A reciprocating screw 706 is rotatably connected to the side of welding chamber 100. A sprocket 2 707 is fixedly connected to the outer side of the reciprocating screw 706. The end of the chain 705 away from sprocket 1 704 is mounted on the outer side of sprocket 2 707. A sliding seat 708 is slidably connected to the side of welding chamber 100. A brush plate 709 is mounted on the side of sliding seat 708. A pull-out storage compartment 710 is mounted inside welding chamber 100. When sprocket 704 rotates, it engages with chain 705 mounted on the outside of sprocket 704, causing sprocket 707, which is connected to sprocket 704 via chain 705, to rotate. Sprocket 707 drives reciprocating screw 706, which is fixedly connected to it, to rotate. Meanwhile, sliding seat 708, which is threaded onto the outside of reciprocating screw 706, is simultaneously restricted by welding chamber 100, which is slidably connected to it. This allows sliding seat 708 to reciprocate horizontally as reciprocating screw 706 rotates, thereby driving brush plate 709 mounted on its side to move. This cleans welding slag from welding chamber 100 into collection chamber 710, making the device easier to use.

[0033] In use, based on Embodiment 1 and Embodiment 2, when the rotating component 300 rotates, it drives the bevel gear 701 fixedly connected to it to rotate, causing the bevel gear 701 to drive the bevel gear 703 meshing with it to rotate. The bevel gear 703 drives the rotating shaft 702 fixedly connected to it to rotate, causing the rotating shaft 702 to drive the sprocket 704 fixedly connected to it to rotate. In conjunction with the chain 705 mounted on the outside of the sprocket 704, the sprocket 707, which is connected to the sprocket 704 via the chain 705, rotates. The sprocket 707 drives the reciprocating screw 706 fixedly connected to it to rotate. The sliding seat 708, which is threadedly mounted on the outside of the reciprocating screw 706, is simultaneously restricted by the welding chamber 100 slidably connected to it. As the reciprocating screw 706 rotates, the sliding seat 708 can reciprocate in the horizontal direction. The sliding seat 708 can drive the brush plate 709 mounted on its side to move, thereby cleaning the welding slag in the welding chamber 100 into the collection chamber 710.

[0034] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A welding device for manufacturing and processing pin products, characterized in that, Include: The inside of the welding bin is equipped with a movable clamping seat, and the inside of the welding bin is rotationally connected with a rotating part driven by a servo motor; The movable welding head is assembled on the side of the rotating part; The outside of the rotating part is equipped with a hydraulic bin one, and the inside of the rotating part is equipped with a through hydraulic bin two, the side of the hydraulic bin two is slidably connected with a push rod by setting a piston, the hydraulic bin one and the push rod are equipped with a transmission part for transmission, the side of the push rod is rotationally connected with an auxiliary support seat one, the inside of the welding bin is equipped with a stabilizing assembly for maintaining the stability of the pin shaft, and the inside of the welding bin is equipped with a cleaning assembly for cleaning the welding slag.

2. The welding device for pin shaft production according to claim 1, characterized in that: The transmission part includes a spring one assembled in the inside of the hydraulic bin one, the inside of the hydraulic bin one is slidably connected with a sliding block by setting a piston, the side of the hydraulic bin one is slidably connected with an arc plate by setting a piston, and the end of the hydraulic bin two away from the push rod is slidably connected with a force rod one by setting a piston.

3. The welding device for pin shaft production according to claim 2, characterized in that: The end of the spring one away from the hydraulic bin one is assembled on the sliding block.

4. The welding device for pin shaft production according to claim 2, characterized in that: The force rod one is located at the bottom of the arc plate and is in contact with the arc plate.

5. The welding device for pin shaft production according to claim 2, characterized in that: The stabilizing assembly includes a hydraulic bin three assembled in the inside of the welding bin, one end of the hydraulic bin three is slidably connected with a force rod two by setting a piston, the other end of the hydraulic bin three is slidably connected with a transmission rod one by setting a piston, the top of the force rod two is equipped with a spring three, the side of the welding bin is rotationally connected with a rotating block, the rotating block is respectively fixedly connected with a connecting rod one and a connecting rod two, the side of the connecting rod two is hinged with a transmission rod two, and the side of the transmission rod two is fixedly connected with an auxiliary support seat two.

6. The welding device for pin shaft production according to claim 5, characterized in that: The force rod two is located at the top of the arc plate and is in contact with the arc plate.

7. The welding device for pin shaft production according to claim 5, characterized in that: The connecting rod one is located at the side of the transmission rod one and is in a hinged state with the transmission rod one.

8. The welding device for pin shaft production according to claim 5, characterized in that: The cleaning assembly includes a bevel gear one fixed on the outside of the rotating part, the side of the welding bin is rotationally connected with a rotating shaft, the outside of the rotating shaft is respectively fixedly connected with a bevel gear two and a chain wheel one, the outside of the chain wheel one is equipped with a chain, the side of the welding bin is rotationally connected with a reciprocating screw rod, the outside of the reciprocating screw rod is fixedly connected with a chain wheel two, the side of the welding bin is slidably connected with a sliding seat, the side of the sliding seat is equipped with a brush plate, and the inside of the welding bin is equipped with a drawable storage bin.

9. The welding device for pin shaft production according to claim 8, characterized in that: The bevel gear two is located at the side of the bevel gear one and is in a meshing state with the bevel gear one.

10. The welding device for pin shaft production according to claim 8, characterized in that: The end of the chain away from the chain wheel one is assembled at the outside of the chain wheel two.

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