Metal part production welding platform

Abstract

The invention relates to the technical field of metal welding platforms, and discloses a metal part production welding platform which comprises a platform body, a plurality of positioning holes are evenly formed in the top end of the platform body according to the fixed size, and horizontal positioning sliding strips are symmetrically and fixedly connected to the outer walls of the two sides of the platform body respectively. The two positioning sliding strips are each connected with a movable clamp in a sliding mode. The movable clamp is composed of horizontal baffle pieces, a multi-direction adjusting piece and an abutting piece, and the horizontal baffle pieces symmetrically and horizontally slide above the positioning sliding strip. Through sliding connection of the movable clamp and the multi-direction adjusting piece, rapid positioning and locking of a metal part are achieved, traditional bolt disassembly and assembly operation is greatly reduced, the adjusting time is shortened, and the high-efficiency production requirement is met; wherein the movable clamp adopts a multi-directional adjusting piece and an abutting piece, can cover most of the area of the platform body, can adapt to metal parts in different shapes through a mechanical arm and a rotating structure, and is convenient for quick remodeling of multi-variety and small-batch production.

Description

Technical Field

[0001] This invention relates to the field of metal welding platform technology, and more particularly to a welding platform for the production of metal parts. Background Technology

[0002] In the field of metal parts manufacturing, welding is a critical process, and the welding platform is the core component for completing this process. Existing metal parts production welding platforms typically include a robust worktable and a series of fixtures for holding and positioning the metal parts. Their purpose is to ensure that the parts maintain a precise relative position during welding, preventing displacement due to thermal deformation or external forces, thereby guaranteeing the final welding accuracy and quality.

[0003] Currently, to achieve flexible support and positioning for various types of small-batch metal parts, the industry commonly uses modular combination fixture systems, such as fixtures based on T-slot platforms or die-hole platforms. The core fixing and adjustment methods of these systems heavily rely on threaded connections (e.g., bolts). A typical operating procedure is as follows: The operator manually moves the fixture base to the approximate position of the platform based on the rough outline of the part, and then initially fixes it to the T-slot or die hole of the platform using bolts. Next, multiple bolts are repeatedly tightened using tools such as sockets and wrenches to secure the fixture base. Subsequently, the positions of components such as positioning blocks and clamping arms are precisely controlled by adjusting the screw pairs on the fixture to conform to the shape of the part. Each adjustment of a component requires at least one bolt tightening operation. After finally confirming the position, all bolts must be finally tightened.

[0004] This method of fixing and adjusting based on threaded connections exposes a series of significant inherent defects:

[0005] 1. Extremely low efficiency: The installation of each clamping component and every minor position adjustment involves tightening and loosening bolts. When dealing with a complex part that requires multiple clamping points for fixation, operators need to spend a lot of time and energy on repetitive thread removal, assembly, and tightening.

[0006] 2. Severe lack of flexibility: When there are many metal parts to be welded, or when the part models are frequently changed, operators have to completely disassemble the existing fixture layout and repeat the above tedious assembly and adjustment process for a new part. This frequent "disassembly-reassembly" cycle is not only labor-intensive, but also greatly occupies the effective production time of the equipment, making it difficult to adapt to the needs of modern multi-variety and fast-paced production.

[0007] In summary, existing welding platform fixture systems, due to their inherent reliance on frequent thread disassembly and assembly operations, exhibit core pain points such as time-consuming adjustments, slow positioning, and insufficient flexibility when facing diverse and high-efficiency production demands.

[0008] Therefore, there is an urgent need for a new type of welding platform and fixture system that can achieve rapid positioning and locking and significantly reduce the number of threaded connection operations, so as to improve the overall efficiency and response speed of metal parts welding production. Summary of the Invention

[0009] To address the technical problems mentioned in the background art, such as long adjustment time, slow positioning, and insufficient flexibility when facing diverse and high-efficiency production demands, the present invention provides a metal parts production welding platform.

[0010] This invention is achieved using the following technical solution: a welding platform for producing metal parts, comprising:

[0011] The platform body has several positioning holes evenly opened at the top of the platform body according to a fixed size. A horizontal positioning slide is symmetrically fixedly connected to the outer walls of both sides of the platform body. A movable clamp is slidably connected to each of the two positioning slides.

[0012] The movable fixture consists of a horizontal baffle, a multi-directional adjustment component, and a clamping component. The horizontal baffle slides symmetrically above the positioning slide bar to abut against the metal part, and the multi-directional adjustment component and the clamping component are used to position the metal part.

[0013] As a further improvement to the above solution, the horizontal baffle includes a horizontal slider that slides on the positioning slider. A hydraulic telescopic rod is vertically fixedly connected to the top of the horizontal slider. The hydraulic telescopic rod is in contact with the outer wall of the platform body. A horizontal protrusion is fixedly connected to the inner wall of the hydraulic telescopic rod. A horizontal baffle is horizontally slidably connected to the horizontal protrusion. The bottom end of the horizontal baffle slides against the outer top of the platform body.

[0014] As a further improvement to the above solution, side baffles are symmetrically fixedly connected to both sides of the top of the platform body, and the side baffles block the horizontal baffles.

[0015] As a further improvement to the above solution, a horizontal groove is provided in the middle of the transverse baffle. The length of the groove is longer than that of the transverse protrusion. The transverse baffle is slidably connected to the transverse protrusion through the groove.

[0016] As a further improvement to the above solution, the multi-directional adjustment component includes a connecting column. The bottom end of the connecting column is connected to the top of the telescopic end of the transverse protrusion. A connecting rotating block is coaxially fixedly connected to the top of the connecting column. A damping rubber ring is provided on the outer sleeve of the connecting rotating block. A rotating sleeve is rotatably connected to the connecting rotating block. A connecting rotating rod is fixedly connected to the middle of the top of the rotating sleeve. Damping rubber is provided on both outer walls of the connecting rotating rod. A mechanical arm is rotatably connected to the connecting rotating rod. A fixing rod is fixedly connected to the other end of the mechanical arm. A receiving block is fixedly connected to the middle of the fixing rod. A round rod is fixedly connected to the other side of the receiving block. Damping rubber is provided on both outer walls of the round rod. A mechanical arm is rotatably connected to the round rod. The bottom end of the mechanical arm is connected to a clamping component.

[0017] As a further improvement to the above solution, the clamping component includes an inner rotating groove located in the middle of the bottom end of the second robotic arm. A rotating block is rotatably connected to the inner rotating groove. A damping rubber is provided at the connection between the rotating block and the inner rotating groove. A knob is fixedly connected to the middle of the bottom end of the rotating block. A rotating sleeve is symmetrically fixedly connected to the bottom end of the knob. A large cylinder is rotatably connected to one of the rotating sleeves. A small cylinder is coaxially fixedly connected to the inner end of the large cylinder. A guide groove is provided on the outer wall of the small cylinder. An inclined groove is provided in the middle of the guide groove.

[0018] As a further improvement to the above scheme, the guide slot is formed by two inclined slots and two wave slots connected together. The two inclined slots are inclined in the same direction, and the two wave slots are arranged to bend and undulate in an orderly manner towards the inclined slot. The two ends of the inclined slot are adjacent to the two wave slots that bend inward closest to the inclined slots.

[0019] As a further improvement to the above scheme, an inclined slider is slidably connected inside the inclined groove. An elastic rope is fixedly connected to the top of the inclined slider, and a guide slider is fixedly connected to the other end of the elastic rope. The bottom end of the guide slider slides within the inclined groove and the wave groove.

[0020] As a further improvement to the above solution, the small cylinder is slidably connected to an outer cylinder, and a handle is fixedly connected to the outer end of the outer cylinder. The outer wall of the outer cylinder has a horizontal outer wall groove, which is slidably connected to the guide slider. The outer wall of the outer cylinder slides only horizontally with the outer wall of the adjacent rotating sleeve plate.

[0021] As a further improvement to the above scheme, a full sleeve plate is fixedly connected to the outer wall of the large cylinder inside the rotating sleeve plate. A half sleeve plate is fixedly connected to the bottom end of the full sleeve plate. The half sleeve plate is rotatably connected to the bottom end of another rotating sleeve plate. A connecting plate is fixedly connected to the middle of the bottom end of the half sleeve plate. An abutment rubber is sleeved on the bottom end of the connecting plate.

[0022] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0023] (i) This invention achieves rapid positioning and locking of metal parts through the sliding connection of the movable clamp and the multi-directional adjustment component, which greatly reduces the traditional bolt disassembly and assembly operations, shortens the adjustment time, and meets the needs of high-efficiency production.

[0024] (ii) In this invention, the movable fixture uses multi-directional adjustment parts and clamping parts, which can cover most of the platform body and can adapt to metal parts of different shapes through the robotic arm and rotating structure, which facilitates rapid changeover for multi-variety, small-batch production.

[0025] (iii) The present invention ensures that the fixture remains stable after adjustment by using damping rubber design and guide groove mechanism of clamping parts, preventing parts from shifting during welding and ensuring welding quality. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of a metal parts production welding platform proposed in this invention;

[0027] Figure 2 For the present invention Figure 1 A partial structural diagram from a top view;

[0028] Figure 3 This is a cross-sectional view of the connection state structure of a single movable clamp according to the present invention;

[0029] Figure 4 For the present invention Figure 3 Exploded view of the structure of the movable fixture;

[0030] Figure 5 This is a schematic diagram of the overall structure of the clamping component of the present invention;

[0031] Figure 6 This is a schematic diagram showing the internal structure of the clamping component of the present invention;

[0032] Figure 7 This is an exploded view of the structure of the clamping component of the present invention;

[0033] Figure 8 For the present invention Figure 7 Enlarged schematic diagram of the structure at point a;

[0034] Figure 9 This is a schematic diagram of the unfolded state of the guide groove on the outer wall of the small cylinder of the present invention.

[0035] Explanation of key symbols:

[0036] 1. Platform body; 2. Positioning hole; 3. Positioning slide bar; 4. Side baffle; 5. Horizontal slider; 6. Hydraulic telescopic rod; 7. Horizontal protrusion; 8. Horizontal baffle; 9. Connecting column; 10. Connecting rotating block; 11. Rotating sleeve block; 12. Connecting rotating rod; 13. Robotic arm one; 14. Receiving block; 15. Fixing rod; 16. Round rod; 17. Robotic arm two; 18. Inner rotating groove; 19. Rotating block; 20. Knob; 21. Rotating sleeve plate; 22. Large cylinder; 23. Small cylinder; 24. Inclined groove; 25. Wave groove; 26. Inclined slot; 27. Inclined slider; 28. Elastic rope; 29. ​​Guide slider; 30. Outer cylinder; 31. Outer wall slot; 32. Pull handle; 33. Full sleeve plate; 34. Half sleeve plate; 35. Connecting plate; 36. Abutment rubber. Detailed Implementation

[0037] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0038] Example 1: Please refer to Figures 1-9 This embodiment of a metal parts production welding platform includes:

[0039] Platform body 1, with several positioning holes 2 evenly opened at the top of the platform body 1 according to a fixed size, and a horizontal positioning slide bar 3 symmetrically fixedly connected to the outer walls of both sides of the platform body 1, and a movable clamp slidably connected to each of the two positioning slide bars 3.

[0040] The movable fixture consists of a horizontal baffle, a multi-directional adjustment component, and a clamping component. The horizontal baffle slides symmetrically above the positioning slide bar 3 to abut against the metal part, and the multi-directional adjustment component and the clamping component are used to position the metal part.

[0041] See Figure 1 , Figure 2 and Figure 3 The entire platform body 1 is a conventional welding platform. Each positioning hole 2 is used to assist in the installation of another clamp to meet the fixing means mentioned in the background art for scenarios with a large number of metal parts. The size of each positioning hole 2 is a fixed standard, which can be used with the horizontal baffle to block and position. Then, the metal parts can be positioned by the multi-directional adjustment component and locked to the top of the platform body 1 by the clamping component, completing the splicing and initial positioning of multiple metal parts. After that, the welding operation can be performed on the metal parts after initial positioning.

[0042] Another implementation of this embodiment is to install multiple movable clamps to meet the more complex positioning needs of two metal pieces.

[0043] The horizontal baffle includes a horizontal slider 5 that slides on the positioning slider 3. A hydraulic telescopic rod 6 is vertically fixed to the top of the horizontal slider 5. The hydraulic telescopic rod 6 is in contact with the outer wall of the platform body 1. A horizontal protrusion 7 is fixedly connected to the inner wall of the hydraulic telescopic rod 6. A horizontal baffle 8 is horizontally slidably connected to the horizontal protrusion 7. The bottom end of the horizontal baffle 8 slides against the outer top of the platform body 1.

[0044] The top two sides of the platform body 1 are symmetrically fixed with side baffles 4, which block the horizontal baffles 8.

[0045] A horizontal groove is provided in the middle of the transverse baffle 8. The length of the groove is longer than that of the transverse protrusion 7. The transverse baffle 8 is slidably connected to the transverse protrusion 7 through the groove.

[0046] See Figure 1 and Figure 3 The bottom of the transverse baffle 8 is in contact with the edge of the platform body 1 and can slide. As the operator guides the entire hydraulic telescopic rod 6 to slide, the transverse baffle 8 can be blocked by the side baffle 4 and slide with the transverse protrusion 7 to keep the transverse baffle 8 stable in the platform body 1.

[0047] The implementation principle of a metal parts production welding platform in this application embodiment is as follows:

[0048] First, the edge of the metal part is attached to the horizontal baffle 8 to complete the initial positioning. Then, the operator can pull the entire clamping part to guide it to the metal part that needs to be positioned and lock it.

[0049] The metal parts can be fixed by abutting against the transverse baffle 8 at the positioning hole 2. Then, the clamping part and another auxiliary clamp can be adjusted to fix the metal parts according to the positioning area and needs.

[0050] Example 2: Combination Figure 3 and Figure 4 This embodiment is an improvement on embodiment 1, further described in the following aspects:

[0051] The multi-directional adjustment component includes a connecting column 9, the bottom end of which is connected to the top of the telescopic end of the transverse protrusion 7. A connecting rotating block 10 is coaxially fixedly connected to the top of the connecting column 9. A damping rubber ring is provided on the outer sleeve of the connecting rotating block 10. A rotating sleeve 11 is rotatably connected to the connecting rotating block 10. A connecting rotating rod 12 is fixedly connected to the middle of the top of the rotating sleeve 11. Damping rubber is provided on both outer walls of the connecting rotating rod 12. A mechanical arm 13 is rotatably connected to the connecting rotating rod 12. A fixing rod 15 is fixedly connected to the other end of the mechanical arm 13. A receiving block 14 is fixedly connected to the middle of the fixing rod 15. A round rod 16 is fixedly connected to the other side of the receiving block 14. Damping rubber is provided on both outer walls of the round rod 16. A mechanical arm 17 is rotatably connected to the round rod 16. The bottom end of the mechanical arm 17 is connected to a clamping component.

[0052] See Figure 3 and Figure 4 The hydraulic telescopic rod 6 can further improve the range of motion of the entire component, and the connection points of the connecting rod 12, the first robotic arm 13 and the second robotic arm 17 are all equipped with corresponding damping, which can well ensure the relative stability of the clamping parts and achieve stability during positioning.

[0053] The implementation principle of a metal parts production welding platform in this application embodiment is as follows:

[0054] Based on the position and area of ​​the metal parts, the entire clamping component can be pulled to rotate and adjust the mechanical arm 13 and mechanical arm 17 under damping, which can cover half of the entire platform body 1, and complete the full coverage of the entire platform body 1 by sliding the horizontal slider 5 and the positioning slider 3.

[0055] Example 3: Combination Figures 4-9 This embodiment is further improved upon Embodiments 1 and 2 in the following ways:

[0056] The clamping component includes an inner rotating groove 18 located in the middle of the bottom end of the robotic arm 17. A rotating block 19 is rotatably connected to the inner rotating groove 18. A damping rubber 3 is provided at the connection between the rotating block 19 and the inner rotating groove 18. A knob 20 is fixedly connected to the middle of the bottom end of the rotating block 19. A rotating sleeve 21 is symmetrically fixedly connected to the bottom end of the knob 20. A large cylinder 22 is rotatably connected to one of the rotating sleeves 21. A small cylinder 23 is coaxially fixedly connected to the inner end of the large cylinder 22. A guide groove is provided on the outer wall of the small cylinder 23. An inclined groove 26 is provided in the middle of the guide groove.

[0057] The guide slot is formed by two inclined slots 24 and two wave slots 25 connected together. The two inclined slots 24 are inclined in the same direction. The two wave slots 25 are arranged to bend and undulate in an orderly manner towards the inclined slot 26. The two ends of the inclined slot 26 are adjacent to the two wave slots 25 that bend inward closest to the inclined slots 24.

[0058] See Figure 5 , Figure 6 , Figure 7 and Figure 9 By using the inclined groove 24, the wave groove 25, the inclined groove 24 and the wave groove 25 connected end to end in sequence, the rotation angle of the entire large cylinder 22 can be adjusted and changed, thereby meeting the locking requirements of different metal parts.

[0059] An inclined slider 27 is slidably connected inside the inclined slot 26. An elastic rope 28 is fixedly connected to the top of the inclined slider 27. A guide slider 29 is fixedly connected to the other end of the elastic rope 28. The bottom end of the guide slider 29 slides within the inclined slot 24 and the wave slot 25.

[0060] See Figures 5-9 When the tilting slider 27 moves horizontally around the outer wall of the small cylinder 23 along with the guide slider 29, it can drive the tilting slider 27 to slide back and forth along the tilting groove 26. Meanwhile, the guide slider 29 is always pulled by the elastic rope 28 to slide along the inclined groove 24 and the wave groove 25, ensuring that the entire guide slider 29 can move along the entire end-to-end guide groove according to the set requirements, thereby realizing the orderly angular rotation of the entire outer cylinder 30, so as to satisfy the bottom abutment to fix the metal parts.

[0061] The small cylinder 23 is slidably connected to an outer cylinder 30. A handle 32 is fixedly connected to the outer end of the outer cylinder 30. The outer wall of the outer cylinder 30 has a horizontal outer wall groove 31. The outer wall groove 31 is slidably connected to the guide slider 29. The outer wall of the outer cylinder 30 slides only horizontally with the outer wall of the adjacent rotating sleeve 21.

[0062] See Figures 5-9 When the outer cylinder 30 moves back and forth along the small cylinder 23, the groove 31 on the outer wall can drive the guide slider 29 to move along the inclined groove 24 and the wave groove 25, which can ensure that the outer cylinder 30 can adapt to the sliding changes of the guide slider 29 and achieve the contact adaptation with the metal parts.

[0063] The outer wall of the large cylinder 22 is fixedly connected to the inner side of the rotating sleeve 21 with a full sleeve 33. The bottom end of the full sleeve 33 is fixedly connected to a half sleeve 34. The half sleeve 34 is rotatably connected to the bottom end of another rotating sleeve 21. The middle part of the bottom end of the half sleeve 34 is fixedly connected to a connecting plate 35. The bottom end of the connecting plate 35 is fitted with an abutting rubber 36.

[0064] See Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 The abutting rubber 36 is a soft material, which enables it to adapt to the contact with metal parts when multiple parts are in cooperation, and ensures that there is always further contact with non-flat metal parts, improving the adaptability and fixation of circular parts, arc-shaped parts and other structures.

[0065] The implementation principle of a metal parts production welding platform in this application embodiment is as follows:

[0066] Pulling the entire knob 20 causes the connecting rod 12, the robotic arm 13, and the receiving block 14 to rotate, so that the bottom abutting rubber 36 can abut against the metal parts at the platform body 1.

[0067] When dealing with curved metal parts, in order to fit the upper part of the curved metal parts, the handle 32 can be pulled to make the outer cylinder 30 slide horizontally along the rotating sleeve 21. This can drive the guide slider 29 to slide along the wave groove 25 / sloping groove 24 into another inwardly concave wave groove 25. As the guide slider 29 slides, the elastic rope 28 can pull the tilt slider 27 to move along the tilt groove 26, ensuring that the tilt slider 27 remains close to the guide slider 29. Thus, when the angle of the abutting rubber 36 is adapted to the abutting of the curved metal parts, the abutting rubber 36 is fully pressed down to the metal parts to complete the fixation.

[0068] The above embodiments are merely preferred embodiments of the present invention and should not be construed as limiting the scope of protection of the present invention. Any non-substantial changes and substitutions made by those skilled in the art based on the present invention shall fall within the scope of protection claimed by the present invention.

Claims

1. A welding platform for producing metal parts, characterized in that, include: Platform body (1), the top of the platform body (1) is evenly provided with a number of positioning holes (2) according to a fixed size, and a horizontal positioning slide (3) is symmetrically fixedly connected to the outer walls of both sides of the platform body (1), and a movable clamp is slidably connected to each of the two positioning slides (3). The movable fixture consists of a horizontal baffle, a multi-directional adjustment component and a clamping component. The horizontal baffle slides symmetrically above the positioning slide bar (3) to abut against the metal parts, and the metal parts are positioned by the multi-directional adjustment component and the clamping component.

2. The metal parts production welding platform as described in claim 1, characterized in that, The horizontal baffle includes a horizontal slider (5) that slides on the positioning slider (3). The top of the horizontal slider (5) is vertically fixedly connected to a hydraulic telescopic rod (6). The hydraulic telescopic rod (6) is attached to the outer wall of the platform body (1). A horizontal protrusion (7) is fixedly connected to the inner wall of the hydraulic telescopic rod (6). A horizontal baffle (8) is horizontally slidably connected to the horizontal protrusion (7). The bottom end of the horizontal baffle (8) slides against the outer side of the top of the platform body (1).

3. The metal parts production welding platform as described in claim 2, characterized in that, The platform body (1) has side baffles (4) fixedly connected symmetrically on both sides of its top end, and the side baffles (4) block the transverse baffles (8).

4. The metal parts production welding platform as described in claim 3, characterized in that, A horizontal groove is provided in the middle of the transverse baffle (8), and the length of the groove is longer than that of the transverse protrusion (7). The transverse baffle (8) is slidably connected to the transverse protrusion (7) through the groove.

5. The metal parts production welding platform as described in claim 1, characterized in that, The multi-directional adjustment component includes a connecting column (9), the bottom end of which is connected to the top of the telescopic end of the transverse protrusion (7). A connecting rotating block (10) is coaxially fixedly connected to the top of the connecting column (9). A damping rubber ring is provided on the outer sleeve of the connecting rotating block (10). A rotating sleeve (11) is rotatably connected to the connecting rotating block (10). A connecting rotating rod (12) is fixedly connected to the middle of the top of the rotating sleeve (11). Damping rubber is provided on both outer walls of the connecting rotating rod (12). First, a mechanical arm (13) is rotatably connected to the connecting rod (12). The other end of the mechanical arm (13) is fixedly connected to a fixed rod (15). A receiving block (14) is fixedly connected to the middle of the fixed rod (15). A round rod (16) is fixedly connected to the other side of the receiving block (14). Damping rubber is provided on the outer walls of both sides of the round rod (16). A mechanical arm (17) is rotatably connected to the round rod (16). The bottom end of the mechanical arm (17) is connected to a clamping part.

6. The metal parts production welding platform as described in claim 5, characterized in that, The clamping component includes an inner rotating groove (18) located in the middle of the bottom end of the robotic arm (17). A rotating block (19) is rotatably connected to the inner rotating groove (18). A damping rubber is provided at the connection between the rotating block (19) and the inner rotating groove (18). A knob (20) is fixedly connected to the middle of the bottom end of the rotating block (19). A rotating sleeve (21) is symmetrically fixedly connected to the bottom end of the knob (20). A large cylinder (22) is rotatably connected to one of the rotating sleeves (21). A small cylinder (23) is coaxially fixedly connected to the inner end of the large cylinder (22). A guide slot is provided on the outer wall of the small cylinder (23), and an inclined slot (26) is provided in the middle of the guide slot.

7. A metal parts production welding platform as described in claim 6, characterized in that, The guide slot is formed by two inclined slots (24) and two wave slots (25) connected together. The two inclined slots (24) are inclined in the same direction. The two wave slots (25) are arranged to bend and undulate in an orderly manner towards the inclined slot (26). The two ends of the inclined slot (26) are adjacent to the two wave slots (25) that bend inward closest to the inclined slots (24).

8. A metal parts production welding platform as described in claim 7, characterized in that, An inclined slider (27) is slidably connected inside the inclined slot (26). An elastic rope (28) is fixedly connected to the top of the inclined slider (27). A guide slider (29) is fixedly connected to the other end of the elastic rope (28). The bottom end of the guide slider (29) slides in the inclined slot (24) and the wave slot (25).

9. A metal parts production welding platform as described in claim 6, characterized in that, The small cylinder (23) is slidably connected to an outer cylinder (30). A handle (32) is fixedly connected to the outer end of the outer cylinder (30). The outer wall of the outer cylinder (30) is provided with a horizontal outer wall groove (31). The outer wall groove (31) is slidably connected to the guide slider (29). The outer wall of the outer cylinder (30) slides only horizontally with the outer wall of the adjacent rotating sleeve plate (21).

10. A metal parts production welding platform as described in claim 6, characterized in that, The outer wall of the large cylinder (22) is fixedly connected to the inner side of the rotating sleeve (21) with a full sleeve plate (33). The bottom end of the full sleeve plate (33) is fixedly connected to a half sleeve plate (34). The half sleeve plate (34) is rotatably connected to the bottom end of another rotating sleeve plate (21). The middle part of the bottom end of the half sleeve plate (34) is fixedly connected to a connecting plate (35). The bottom end of the connecting plate (35) is fitted with an abutting rubber (36).

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