Profiling device for machining and producing folding bicycle

By designing a folding car forming device with auxiliary ejection and extrusion mechanisms, the problem of difficult workpiece demolding was solved, production efficiency and product quality were improved, and mold life was extended.

CN223603231UActive Publication Date: 2025-11-28QINGDAO YUJIAXIN IND & TRADE CO LTD
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Patent Information

Application Number
CN202423191416.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-24
Publication Date
2025-11-28
Estimated Expiration
2034-12-24

AI Technical Summary

Technical Problem

In traditional folding bike manufacturing, the bonding force between the workpiece and the mold is relatively large, which makes demolding difficult, affects production efficiency and product quality, and may damage the mold.

Method used

A forming device including an auxiliary ejection mechanism and a pressing mechanism was designed. Through a linkage mechanism composed of an L-shaped connecting rod, a linkage block and a spring, the workpiece is automatically ejected and reset. Combined with the sliding groove structure on both sides of the fixed mold, stability and smooth demolding are ensured.

Benefits of technology

It enables automatic demolding of workpieces, improves production efficiency, extends mold life, reduces production costs, and ensures product quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of folding bicycle production and processing, and discloses a profiling device for folding bicycle processing and production, which comprises a base, an upper plate is fixedly connected to the base through four symmetrically arranged support columns, a fixed mold is fixedly mounted on the base, a hydraulic cylinder is fixedly connected to the lower wall surface of the upper plate at a position corresponding to the fixed mold, and a pressing plate is fixedly mounted on the hydraulic cylinder. The bottom of the output end of the hydraulic cylinder is fixedly connected with a connecting plate. According to the utility model, the auxiliary ejection mechanism comprises an L-shaped connecting rod, a first spring, a connecting rod, a linkage block and an auxiliary clamping block, the linkage mechanism comprises a movable groove, a second T-shaped sliding groove, a second T-shaped sliding block and a second spring, and the extrusion mechanism comprises a supporting rod and an extrusion block. And the effects of automatically ejecting the workpiece and assisting the ejection mechanism to automatically reset are achieved, the problem that demolding is not easy due to the fact that the binding force between the workpiece and the fixed mold is large is effectively solved, the working efficiency is greatly improved, and the recycling performance of the device is guaranteed.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the field of folding car production and processing technology, in particular to a profiling device for folding car processing and production. BACKGROUND

[0002] In the field of folding car production and processing, raw materials such as metal plates often need to be processed into specific-shaped parts by profiling devices to meet the structure and function requirements of folding cars.

[0003] Traditional profiling devices for folding car processing and production generally include basic structures such as a base, an upper plate, a fixed mold, a movable mold, and a hydraulic cylinder driving the movable mold to move. During work, the material to be profiled is placed in the fixed mold, and the hydraulic cylinder drives the movable mold to move downward, so that the material is formed between the fixed mold and the movable mold. However, this traditional profiling device has obvious defects. After profiling is completed, there is often a large binding force between the workpiece and the fixed mold, making it difficult for the workpiece to be smoothly demolded from the fixed mold. This problem requires workers to spend a lot of time and effort to remove the workpiece, which not only seriously reduces production efficiency, but also may cause damage to the mold due to improper manual demolding operation, such as causing scratches and deformation on the surface of the mold, thereby shortening the service life of the mold and increasing the mold replacement cost and equipment maintenance cost of the enterprise. Moreover, due to the unsmooth demolding process, the forming quality of the workpiece may also be affected, leading to an increase in product defective rate. Therefore, there is an urgent need for a profiling device for folding car processing and production that can effectively solve the problem of workpiece demolding difficulty to improve production efficiency, reduce production cost, and ensure product quality. For this reason, we propose a profiling device for folding car processing and production. SUMMARY

[0004] The technical problem to be solved by the utility model is to overcome the shortcomings of the prior art and provide a profiling device for folding car processing and production that solves the above problems.

[0005] The utility model discloses a technical scheme adopted for solving the above technical problems: a profiling device for folding car processing and production, including base, four symmetrical support columns are fixedly connected with the upper plate on the base, the fixed mounting of fixed mould is installed on the base, the lower wall surface of the upper plate is fixedly connected with the hydraulic cylinder in the position of fixed mould, the bottom of the output end of hydraulic cylinder is fixedly connected with the connecting plate, the lower wall surface of the connecting plate is fixedly connected with the movable mould in the position of fixed mould, the inside of fixed mould is movably connected with the bottom plate that is compatible with its inside shape and size, four top blocks are fixedly connected to the lower wall surface of the bottom plate, four connecting grooves are set up in the inside bottom surface of fixed mould in the position of four top blocks, the top block is movably connected in the inside of corresponding connecting groove, four L-shaped through holes are set up in the outer wall surface of fixed mould in the position of four connecting grooves, the inside of L-shaped through hole is provided with auxiliary ejection mechanism, the connecting plate is provided with linkage mechanism for cooperating with auxiliary ejection mechanism, the fixed mould is provided with extrusion mechanism for cooperating with linkage mechanism.

[0006] Preferably, the auxiliary ejection mechanism includes an L-shaped connecting rod, a first spring, a connecting rod, a linkage block, and an auxiliary clamping block. The inside of the L-shaped through hole movably connects an L-shaped connecting rod compatible with its internal shape. The vertical end top of the L-shaped connecting rod is fixedly connected with the lower wall surface of the corresponding top block. The horizontal end of the L-shaped connecting rod extends to the outside of the fixed mould through the inside of the L-shaped through hole. A connecting rod is fixedly connected between the ends of the L-shaped connecting rods on the same side outside the fixed mould. Two linkage blocks are fixedly installed on the two connecting rods. The horizontal ends of the two linkage blocks are above the fixed mould. The side wall surfaces of the horizontal ends of the two linkage blocks movably connect auxiliary clamping blocks through torsional springs. The horizontal end upper wall surface of the L-shaped connecting rod inside the L-shaped through hole is fixedly connected with a first spring. The free end of the first spring is fixedly connected with the adjacent side wall surface inside the L-shaped through hole.

[0007] Preferably, the linkage mechanism includes a movable slot, a second T-shaped sliding groove, a second T-shaped sliding block, and a second spring. Two movable slots are set up in the left and right side wall surfaces of the connecting plate in the position of the two linkage blocks. Second T-shaped sliding grooves are set up in the side wall surfaces of the two movable slots. Second T-shaped sliding blocks are movably connected in the interiors of the two second T-shaped sliding grooves. The ends of the second T-shaped sliding blocks away from the second T-shaped sliding grooves extend to the interiors of the corresponding movable slots through the interiors of the corresponding second T-shaped sliding grooves. The side wall surfaces of the second T-shaped sliding blocks close to the corresponding second T-shaped sliding grooves are fixedly connected with second springs. The free ends of the second springs are fixedly connected with the adjacent side wall surfaces inside the second T-shaped sliding grooves. The ends of the two auxiliary clamping blocks close to each other are below the same side second T-shaped sliding blocks.

[0008] Preferably, the extrusion mechanism comprises support rods and extrusion blocks, four support rods are symmetrically arranged at the left and right ends of the upper wall surface of the fixed mold, and the extrusion blocks are fixedly arranged on the upper end of the side wall surface of the fixed mold close to the support rods, and the extrusion blocks are triangular blocks.

[0009] Preferably, the positions of the four support rods correspond to the positions of the second T-shaped sliding blocks on the same side of the connecting plate, the connecting plate is located between the four support rods, the extrusion blocks are located below the second T-shaped sliding blocks on the same side, and the horizontal position of the extrusion blocks on the fixed mold is higher than that of the auxiliary clamping blocks on the fixed mold.

[0010] Preferably, the first T-shaped sliding grooves are arranged on the left and right side wall surfaces of the fixed mold corresponding to the positions of the two linkage blocks, and the first T-shaped sliding blocks are movably connected in the first T-shaped sliding grooves.

[0011] Compared with the prior art, the utility model has the advantages of the following:

[0012] 1. By setting up the auxiliary ejection mechanism, the linkage mechanism and the extrusion mechanism, the automatic ejection of the workpiece and the automatic reset of the auxiliary ejection mechanism are realized, the problem that the workpiece is not easy to demold due to the large bonding force between the workpiece and the fixed mold is solved, the work efficiency is greatly improved, and the recycling of the device is ensured.

[0013] 2. By setting up the first T-shaped sliding grooves on the left and right side wall surfaces of the fixed mold and the first T-shaped sliding blocks on the linkage blocks, the stability of the movement of the linkage blocks is ensured, and the stability of the entire auxiliary ejection mechanism when the workpiece is ejected is ensured, the problems of poor workpiece forming or ejection failure caused by structural shaking are reduced, and the product quality and the reliability of the production process are improved.

[0014] 3. By the smooth demolding design of the automatic ejection of the workpiece, the damage of the mold caused by manual forced demolding is reduced, the problems of surface scratching and deformation of the fixed mold and the movable mold caused by improper demolding are avoided, the service life of the mold is prolonged, the cost of mold replacement and equipment maintenance of enterprises is reduced, and the production efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] Fig. 1 It is a whole three-dimensional view of the utility model;

[0016] Fig. 2 It is the partial split view of the fixed mould part of the utility model schematic diagram;

[0017] Fig. 3 It is the partial split view of the fixed mould part of the utility model schematic diagram;

[0018] Fig. 4 It is the partial split view of the fixed mould part of the utility model schematic diagram;

[0019] In the figure: 1, base; 2, upper plate; 3, support column; 4, fixed mould; 5, hydraulic cylinder; 6, connecting plate; 7, movable mould; 8, bottom plate; 9, connecting groove; 10, top block; 11, L-shaped through hole; 12, L-shaped connecting rod; 13, first spring; 14, connecting rod; 15, linkage block; 16, auxiliary clamping block; 17, first T-shaped sliding groove; 18, first T-shaped sliding block; 19, support rod; 20, extrusion block; 21, movable slot; 22, second T-shaped sliding groove; 23, second T-shaped sliding block; 24, second spring. DETAILED DESCRIPTION

[0020] The utility model will be further explained below in combination with specific embodiments, however, people skilled in the art should understand that the detailed description given here in combination with the drawings is for better explanation, and the structure of the utility model must exceed these limited embodiments, and some equivalent replacement schemes or common means are not described in detail in this paper, but still belong to the protection scope of the application.

[0021] Figs. 1-4 It is the best embodiment of the utility model, and the following will be described in combination with the drawings Figs. 1-4 The utility model will be further explained below in combination with specific embodiments, however, people skilled in the art should understand that the detailed description given here in combination with the drawings is for better explanation, and the structure of the utility model must exceed these limited embodiments, and some equivalent replacement schemes or common means are not described in detail in this paper, but still belong to the protection scope of the application.

[0022] The utility model relates to a kind of folding car processing and production with profile device, including base 1, four symmetrical support columns 3 are fixedly connected with upper plate 2 on base 1, fixedly installed with fixed mould 4 on base 1, the lower wall surface of upper plate 2 is fixedly connected with hydraulic cylinder 5 corresponding the position of fixed mould 4, hydraulic cylinder 5 is prior art, not discussed here, the bottom of output end of hydraulic cylinder 5 is fixedly connected with connecting plate 6, connecting plate 6 is fixedly connected with movable mould 7 corresponding the position of fixed mould 4 on lower wall surface, movable mould 4 is movably connected with the bottom plate 8 that its internal shape size is adapted, bottom plate 8 can be moved up and down in the inside of fixed mould 4, the lower wall surface of bottom plate 8 is fixedly connected with four top blocks 10, four connecting grooves 9 are set in the inside of fixed mould 4 corresponding the position of four top blocks 10, top block 10 is movably connected in the inside corresponding connecting groove 9, four L-shaped through holes 11 are set in the outer wall surface of fixed mould 4 left and right sides corresponding the position of four connecting grooves 9, L-shaped through hole connects the hollow area in the inside of connecting groove 9, auxiliary ejection mechanism is arranged in the inside of L-shaped through hole 11, connecting plate 6 is provided with linkage mechanism for cooperating with auxiliary ejection mechanism, fixed mould 4 is provided with extrusion mechanism for cooperating with linkage mechanism.

[0023] When producing folding car, the material needed to be punched into the inside of fixed mould 4, then drive movable mould 7 to move down by hydraulic cylinder 5, complete the profile work of the material in the inside of fixed mould 4, when hydraulic cylinder 5 resets and drives connecting plate 6 to move up after profile completion, it will drive auxiliary ejection mechanism to drive bottom plate 8 to eject workpiece from the inside of fixed mould 4, to facilitate staff to take material, and under the cooperation of linkage mechanism and extrusion mechanism, auxiliary ejection mechanism is automatically reset after workpiece is ejected, for repeated use later.

[0024] Auxiliary ejection mechanism includes L-shaped connecting rod 12, first spring 13, connecting rod 14, linkage block 15 and auxiliary clamping block 16, L-shaped through hole 11 is movably connected with the L-shaped connecting rod 12 that its internal shape is adapted, the vertical end top of L-shaped connecting rod 12 is fixedly connected with the lower wall surface of corresponding top block 10, L-shaped connecting rod 12 can be moved up and down in the inside of L-shaped through hole 11, the horizontal end of L-shaped connecting rod 12 away from the one end of fixed mould 4 extends to the outside of fixed mould 4 by penetrating the inside of L-shaped through hole 11, the horizontal end of two connecting rods 14 is fixedly installed with two linkage blocks 15 on the same side, the horizontal end of two linkage blocks 15 is located above fixed mould 4, the side wall surface of two linkage blocks 15 horizontally close to each other is movably connected with auxiliary clamping block 16 by torsional spring, auxiliary clamping block 16 can rotate downward with the connecting point between auxiliary clamping block 16 and linkage block 15 as center on linkage block 15, the upper wall surface of the horizontal end of L-shaped connecting rod 12 in the inside of L-shaped through hole 11 is fixedly connected with first spring 13, and the free end of first spring 13 is fixedly connected with the side wall surface adjacent to the inside of L-shaped through hole 11.

[0025] When the linkage block 15 moves upward, the linkage block 15 will drive the two L-shaped connecting rods 12 to move upward inside the corresponding L-shaped through hole 11 through the connecting rod 14, so as to drive the bottom plate 8 to move upward inside the fixed mold 4 through the top block 10, so as to achieve the effect of ejecting the workpiece in the fixed mold 4, and the first spring 13 on the L-shaped connecting rod 12 can drive the L-shaped connecting rod 12 to reset when the L-shaped connecting rod 12 is not affected by external force through the elastic force of the first spring 13.

[0026] The linkage mechanism comprises a movable slot 21, a second T-shaped sliding groove 22, a second T-shaped sliding block 23 and a second spring 24. The left and right side walls of the connecting plate 6 are provided with two movable slots 21 corresponding to the positions of the two linkage blocks 15. The side walls of the two movable slots 21 close to each other are provided with a second T-shaped sliding groove 22. The second T-shaped sliding groove 22 is movably connected with a second T-shaped sliding block 23. The end of the second T-shaped sliding block 23 away from the second T-shaped sliding groove 22 extends into the corresponding movable slot 21. The second T-shaped sliding block 23 is fixedly connected with a second spring 24 on the side wall close to the corresponding second T-shaped sliding groove 22. The free end of the second spring 24 is fixedly connected with the side wall adjacent to the second T-shaped sliding groove 22. The ends of the two auxiliary clamping blocks 16 close to each other are located below the same side second T-shaped sliding block 23.

[0027] When the connecting plate 6 is driven by the hydraulic cylinder 5 to move downward, the second T-shaped sliding block 23 on the connecting plate 6 will press the auxiliary clamping block 16 to make it rotate. When the end of the auxiliary clamping block 16 away from the linkage block 15 is not in contact with the second T-shaped sliding block 23, the auxiliary clamping block 16 will reset under the action of the torsional spring force. At this time, the auxiliary clamping block 16 is above the second T-shaped sliding block 23, so that when the connecting plate 6 is driven by the hydraulic cylinder 5 to move upward after the work is completed, the auxiliary clamping block 16 will be in contact with the top of the second T-shaped sliding block 23, so that the linkage block 15 will move upward together with the connecting plate 6 under the influence of the second T-shaped sliding block 23, so as to complete the workpiece taking of the fixed mold 4 through the L-shaped connecting rod 12.

[0028] The extrusion mechanism comprises a supporting rod 19 and an extrusion block 20. The upper walls of the left and right ends of the fixed mold 4 are symmetrically provided with four supporting rods 19. The supporting rod 19 is fixedly installed with an extrusion block 20 on the side wall of the upper end of the fixed mold 4. The extrusion block 20 is a triangular block.

[0029] The positions of the four supporting rods 19 correspond to the positions of the second T-shaped sliders 23 on the same side of the connecting plate 6, and the connecting plate 6 is located between the four supporting rods 19, and the extrusion block 20 is located below the second T-shaped slider 23 on the same side. When the connecting plate 6 moves up and down, the extrusion block 20 can extrude the passing second T-shaped slider 23. When the second T-shaped slider 23 is extruded by the extrusion block 20, the second T-shaped slider 23 is retracted into the inside of the second T-shaped sliding groove 22, and at this time the second spring 24 is deformed. When the second T-shaped slider 23 is separated from the extrusion block 20 after the connecting plate 6 continues to move upwards, the second T-shaped slider 23 is reset under the action of the elasticity of the second spring 24. The horizontal position of the extrusion block 20 on the fixed mold 4 is higher than the horizontal position of the auxiliary clamping block 16 on the fixed mold 4. The second T-shaped slider 23 can drive the auxiliary clamping block 16 to move upwards. When the second T-shaped slider 23 drives the auxiliary clamping block 16 to rise, the extrusion block 20 pushes the second T-shaped slider 23 to retract and separate from the auxiliary clamping block 16.

[0030] Because the horizontal position of the extrusion block 20 on the fixed mold 4 is higher than the horizontal position of the auxiliary clamping block 16 on the fixed mold 4, and the second T-shaped slider 23 can drive the auxiliary clamping block 16 to move upwards, and when the second T-shaped slider 23 drives the auxiliary clamping block 16 to rise, the extrusion block 20 can push the second T-shaped slider 23 to retract and separate from the auxiliary clamping block 16. In use, when the hydraulic cylinder 5 drives the connecting plate 6 to move downwards to complete the molding work on the material in the fixed mold 4 through the moving mold 7, the connecting plate 6 moves upwards with the hydraulic cylinder 5 reset. The second T-shaped slider 23 lifts the linkage block 15 through the auxiliary clamping block 16, so that the L-shaped connecting rod 12 drives the bottom plate 8 to move upwards in the fixed mold 4 to eject the processed workpiece, completing the material taking work. At the same time, as the connecting plate 6 continuously moves upwards, the second T-shaped slider 23 on the connecting plate 6 will contact the extrusion block 20, and the extrusion block 20 will extrude the second T-shaped slider 23 into the inside of the corresponding second T-shaped sliding groove 22, so that the auxiliary clamping block 16 is separated from the second T-shaped slider 23. After the auxiliary clamping block 16 is separated from the second T-shaped slider 23, the linkage block 15 is reset under the action of the elasticity of the first spring 13. When the second T-shaped slider 23 is separated from the extrusion block 20 after the connecting plate 6 continues to move upwards, the second T-shaped slider 23 is reset under the action of the elasticity of the second spring 24. Therefore, when the material to be processed is put into the fixed mold 4 again, the above operation can be continued to process and take the material in the fixed mold 4.

[0031] When the connecting plate 6 moves downwards for the first time, the extrusion block 20 will extrude the second T-shaped slider 23 into the inside of the second T-shaped sliding groove 22. However, because the extrusion block 20 is a triangular structure, as the connecting plate 6 continues to move downwards, the second T-shaped slider 23 will be reset again, thereby not affecting subsequent use.

[0032] The left and right two side walls of the fixed mold 4 are provided with first T-shaped sliding grooves 17 corresponding to the positions of the two linkage blocks 15, the interiors of the two first T-shaped sliding grooves 17 are movably connected with first T-shaped sliding blocks 18, and the end of the first T-shaped sliding block 18 away from the first T-shaped sliding groove 17 is fixedly connected with the side wall adjacent to the corresponding linkage block 15.

[0033] In use, the cooperation of the first T-shaped sliding groove 17 and the first T-shaped sliding block 18 can guarantee the stability of the two linkage blocks 15 during movement, thereby ensuring the stability of the entire auxiliary ejection mechanism when the workpiece is ejected.

[0034] Working principle:

[0035] In use, when the hydraulic cylinder 5 drives the connecting plate 6 to move downward to complete the molding work on the material in the fixed mold 4 through the movable mold 7, the connecting plate 6 moves upward with the hydraulic cylinder 5 reset, the second T-shaped sliding block 23 lifts the linkage block 15 through the auxiliary clamping block 16, so that the L-shaped connecting rod 12 drives the bottom plate 8 to move upward in the fixed mold 4 to eject the processed workpiece, thereby facilitating the worker to take the workpiece, and at the same time, with the continuous upward movement of the connecting plate 6, the second T-shaped sliding block 23 on the connecting plate 6 will be in contact with the extrusion block 20, the extrusion block 20 will extrude the second T-shaped sliding block 23 into the interior of the corresponding second T-shaped sliding groove 22, so that the auxiliary clamping block 16 is separated from the second T-shaped sliding block 23, and after the auxiliary clamping block 16 is separated from the second T-shaped sliding block 23, the linkage block 15 will reset under the action of the first spring 13, and after the second T-shaped sliding block 23 is separated from the extrusion block 20 with the continuous upward movement of the connecting plate 6, the second T-shaped sliding block 23 will reset under the action of the second spring 24, so that when the material to be processed is put into the fixed mold 4 again, the above operation can be continued to process and take the material in the fixed mold 4, and the problem that the workpiece is not easy to be demolded from the tooling due to the large bonding force between the workpiece and the fixed mold after the current molding equipment completes a molding is solved, and the work efficiency is greatly improved.

[0036] The above is only a preferred embodiment of the present application, and is not intended to limit the present application in other forms. Any skilled person in the art can modify or change the above disclosed technical content to obtain equivalent embodiments. However, any simple modification, equivalent change and modification made on the above embodiments according to the technical essence of the present application still falls within the protection scope of the present application.

Claims

1. A folding car processing production uses the profiling device, including base (1), the base (1) is fixedly connected with the upper plate (2) through four symmetrical support column (3), the base (1) is fixedly installed with fixed mould (4), the lower wall surface of the upper plate (2) is fixedly connected with hydraulic cylinder (5) corresponding the position of fixed mould (4), it is characterized by: The bottom of the hydraulic cylinder (5) output end is fixedly connected with a connecting plate (6), the lower wall surface of the connecting plate (6) is fixedly connected with a movable mold (7) corresponding to the position of the fixed mold (4), the inside of the fixed mold (4) movably clamps a bottom plate (8) with the inside shape and size being matched, the lower wall surface of the bottom plate (8) is fixedly connected with four jacks (10) in pairs, the inside bottom surface of the fixed mold (4) is provided with four connecting grooves (9) corresponding to the positions of the four jacks (10), the jacks (10) are movably clamped in the inside of the corresponding connecting grooves (9), the outer wall surface of the fixed mold (4) is provided with four L-shaped through holes (11) on the left and right sides corresponding to the positions of the four connecting grooves (9), the inside of the L-shaped through hole (11) is provided with an auxiliary ejection mechanism, the connecting plate (6) is provided with a linkage mechanism for cooperating with the auxiliary ejection mechanism, and the fixed mold (4) is provided with an extrusion mechanism for cooperating with the linkage mechanism.

2. The folding vehicle production press apparatus of claim 1 wherein: The auxiliary ejection mechanism comprises an L-shaped connecting rod (12), a first spring (13), a connecting rod (14), a linkage block (15) and an auxiliary clamping block (16), the inside of the L-shaped through hole (11) movably clamps an L-shaped connecting rod (12) matched with the inside shape, the lower wall surface of the corresponding jack (10) is fixedly connected with the vertical end top of the L-shaped connecting rod (12), the horizontal end of the L-shaped connecting rod (12) away from the fixed mold (4) extends to the outside of the fixed mold (4) through the inside of the L-shaped through hole (11), the connecting rod (14) is fixedly connected between the ends of the L-shaped connecting rods (12) on the same side outside the fixed mold (4), two linkage blocks (15) are fixedly installed on the two connecting rods (14) in pairs, the horizontal ends of the two linkage blocks (15) are located above the fixed mold (4), the side wall surface of the horizontal end of the two linkage blocks (15) close to each other is movably connected with an auxiliary clamping block (16) through a torsion spring, the horizontal end of the L-shaped connecting rod (12) in the L-shaped through hole (11) is fixedly connected with a first spring (13), and the free end of the first spring (13) is fixedly connected with the side wall surface adjacent to the inside of the L-shaped through hole (11).

3. The folding bicycle processing and producing press-type device of claim 2, wherein: The linkage mechanism comprises a movable slot (21), a second T-shaped sliding groove (22), a second T-shaped sliding block (23) and a second spring (24), two movable slots (21) are formed in positions corresponding to the two linkage blocks (15) on left and right side walls of the connecting plate (6), second T-shaped sliding grooves (22) are formed in side walls of the two movable slots (21) close to each other, second T-shaped sliding blocks (23) are movably connected in the second T-shaped sliding grooves (22), the second T-shaped sliding blocks (23) extend into the movable slots (21) from the second T-shaped sliding grooves (22) on the ends away from the second T-shaped sliding grooves (22), the second T-shaped sliding blocks (23) are fixedly connected with the second springs (24) on side walls close to the second T-shaped sliding grooves (22), and free ends of the second springs (24) are fixedly connected with side walls of the second T-shaped sliding grooves (22) adjacent to each other.

4. The folding bicycle processing and producing press-type device of claim 3, wherein: The extrusion mechanism comprises a supporting rod (19) and an extrusion block (20), four supporting rods (19) are symmetrically installed on left and right ends of an upper wall of the fixed mold (4), and the extrusion blocks (20) are fixedly installed on upper ends of side walls of the supporting rods (19) close to the fixed mold (4), and the extrusion blocks (20) are triangular blocks in cross section.

5. The folding vehicle manufacturing press apparatus of claim 4 wherein: The positions of the four supporting rods (19) correspond to the positions of the second T-shaped sliding blocks (23) on the same side of the connecting plate (6), the connecting plate (6) is located between the four supporting rods (19), the extrusion blocks (20) are located below the second T-shaped sliding blocks (23) on the same side, the horizontal position of the extrusion blocks (20) on the fixed mold (4) is higher than that of the auxiliary clamping blocks (16) on the fixed mold (4), the second T-shaped sliding blocks (23) can drive the auxiliary clamping blocks (16) to move upward, and when the second T-shaped sliding blocks (23) drive the auxiliary clamping blocks (16) to rise, the extrusion blocks (20) push the second T-shaped sliding blocks (23) to shrink and separate from the auxiliary clamping blocks (16).

6. The folding vehicle manufacturing press apparatus of claim 2 wherein: First T-shaped sliding grooves (17) are formed in positions corresponding to the two linkage blocks (15) on left and right side walls of the fixed mold (4), first T-shaped sliding blocks (18) are movably connected in the first T-shaped sliding grooves (17), and the first T-shaped sliding blocks (18) are fixedly connected with side walls of the linkage blocks (15) adjacent to each other on ends away from the first T-shaped sliding grooves (17).