Automatic shaping structure for special-shaped complex product

Abstract

The utility model provides an automatic shaping structure for special-shaped complex products, which is high in shaping processing precision, high in positioning stability and capable of improving the qualified rate of generated parts, and the parts are not easy to rebound after being shaped. The device comprises a workbench, and is characterized in that a bottom plate of the workbench is slidably connected with an upper pressing plate of the workbench through a first guide column and a second guide column, a random positioning structure is arranged between the bottom plate and the upper pressing plate, the random positioning structure comprises a supporting seat, and a bottom positioning structure is arranged on the side edge of the supporting seat and on the surface of the bottom plate.

Description

Technical Field

[0001] The utility model relates to the technical field of shaping fixtures for seat-type special-shaped parts, in particular to an automatic shaping structure for special-shaped and complex products. Background Art

[0002] The traditional shaping process of seat-type special-shaped parts adopts manual hammering. The parts are prone to springback during the hard shaping process, and the shape accuracy of the shaped parts is low. The unstable force when the parts are clamped and shaped can easily cause uncontrollable deformation of the parts, resulting in a low qualified rate of the generated parts. Utility Model Content

[0003] In order to solve the defects of traditional manual shaping of special-shaped seat parts, such as low precision, easy rebound of parts after shaping, unstable force on the workpiece during clamping and shaping, and poor positioning stability, the utility model provides an automatic shaping structure for special-shaped complex products, which has high shaping processing precision, is not prone to springback after shaping, and has high positioning stability, thereby improving the qualified rate of the generated parts.

[0004] The utility model provides the following technical solution: it includes a workbench, characterized in that: the base plate of the workbench is slidably connected through a first guide column, a second guide column and an upper pressure plate of the workbench, a form-fitting positioning structure is provided between the base plate and the upper pressure plate, the form-fitting positioning structure includes a support seat, and a bottom positioning structure is provided on the surface of the base plate on the side of the support seat.

[0005] It is further characterized by:

[0006] The conformable positioning structure includes a blank positioning block and a support seat, the support seat installed on the upper surface of the base plate is in an "L" shape, and the long seat end and the short seat end surfaces of the support seat are respectively installed with a third guide post and a fourth guide post, and the support seat is slidably connected with the blank positioning block through the third guide post, the fourth guide post and the blank positioning block, the blank positioning block is irregular in shape and an inner groove is provided in the middle part, an auxiliary limit block is provided on one side of the blank positioning block, and the head of the auxiliary limit block passes through the side wall of the blank positioning block and is inserted into the inner groove;

[0007] The bottom positioning structure includes a blank limiting block, a through groove is provided in the middle part of the blank limiting block installed on the bottom plate, and a guide vertical plate is provided on the groove edge of the through groove facing the concave side of the bottom plate, a matching profile clamping block assembly is provided on the through groove of the blank limiting block, and a special-shaped cavity is provided inside the profile clamping block assembly, and the profile clamping block assembly clamps the bottom of the special-shaped part into the through groove of the blank limiting block as the tooling moves and is tightly fixed in position;

[0008] The two sides of the bottom plate of the workbench are provided with pick-up plates in parallel, the top ends of the pick-up plates are fixedly connected to the upper pressing plate of the workbench, and the bottom ends thereof are connected to each other through support plates;

[0009] The top ends of the first and second guide posts are both provided with identical guide sleeves, the bodies of the third and fourth guide posts are both surrounded by springs and the top ends of the guide posts are both provided with identical conformal guide sleeves;

[0010] The bottom surface of the upper pressing plate is provided with a height-conforming pin and a height-conforming limit plate in parallel. On one side of the height-conforming pin, a square groove is provided in the middle of the flat pad installed on the bottom surface of the upper pressing plate.

[0011] A connecting seat is installed on the surface of the upper pressure plate, and a certain number of connecting pressure plates are evenly distributed around the base of the connecting seat. The heads of the connecting pressure plates installed on the surface of the upper pressure plate are tightly pressed against the connecting seat. A hydraulic press is installed on the top plate above the upper pressure plate, and the protruding end of the hydraulic rod of the hydraulic press is fixedly connected to the connecting seat.

[0012] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0013] By setting up a conformal positioning structure, the special-shaped parts are placed in the blank positioning block, and the auxiliary limit block works together to fix the part head. The positioning speed is fast and the stability is high. The adapted clamping groove makes the workpiece more shaped and less prone to springback.

[0014] The following clamping block combination in the bottom positioning structure clamps and fixes the lower part of the special-shaped parts. The following clamping block combination is provided with a special-shaped cavity, and the adapted cavity clamps the parts. While accurately positioning, it can also improve the shaping accuracy, which is beneficial to improve the qualified rate of the generated parts.

[0015] The connecting pressure plate maintains the stability of the connecting seat. After the hydraulic press is started, the upper base plate can be stably pressed down through the connecting seat. The first guide column and the second guide column equipped with the guide sleeve can guide the upper pressure plate to stably press down toward the base plate.

[0016] The flat plate ensures that the part reference surface is evenly stressed and relatively stable in the process of pressing down. The middle of the flat plate is provided with a recess to make way for the blank gate position, thus avoiding internal interference and ensuring the stable operation of the internal structure.

[0017] The design of the equal height pins and equal height limit plates can prevent excessive pressure and imbalance of the left and right pressure points during the pressing process. The third and fourth guide pillars will play a role of shock absorption and buffering when the blank positioning block is pressed down, while also enhancing the supporting force.

[0018] The form-fitting clamping block assembly will smoothly enter the blank limit block under the guidance of the guide vertical plate. The blank limit block limits the movement of the form-fitting clamping block assembly to ensure that it only moves vertically downward, and the special-shaped parts can be stably positioned. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1This is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a rear view of the overall structure of the utility model;

[0021] Figure 3 This is a schematic diagram of the internal structure of the workbench of the present invention;

[0022] Figure 4 This is a rear view of the internal structure of the workbench of the present invention;

[0023] Figure 5 This is a schematic diagram of the workbench frame structure of the utility model;

[0024] Figure 6 This is a schematic diagram of the form-fitting positioning structure and the bottom positioning structure of the utility model;

[0025] Figure 7 This is a schematic diagram of the blank limiting block structure of the utility model;

[0026] Figure 8 This is a schematic diagram of the type-adaptive positioning structure of the utility model

[0027] Figure 9 This is a schematic diagram of the combined structure of the flexible clamping block of the utility model

[0028] Figure 10 This is a schematic diagram of the flat pad structure of the utility model

[0029] Figure 11 This is a schematic diagram of the workpiece structure of the present utility model.

[0030] Description of reference numerals:

[0031] 1. Lifting plate; 2. Support plate; 3. Bottom plate; 4. First guide post; 5. Second guide post; 6. Guide sleeve; 7. Contour pin; 8. Connecting pressure plate; 9. Contour limit plate; 10. Conformal clamping block combination; 11. Blank limit block; 12. Blank positioning block; 13. Auxiliary limit block; 14. Support seat; 15. Upper pressure plate; 16. Guide vertical plate; 17. Flat pad; 18. Third guide post; 19. Fourth guide post; 20. Connecting seat; 21. Hydraulic press. DETAILED DESCRIPTION

[0032] The utility model provides Figures 1-11The structure is shown as an automatic shaping structure for special-shaped complex products, which includes a workbench, and a pick-up plate 1 is arranged on both sides of the bottom plate 3 of the workbench. The top of the pick-up plate 1 is fixed to the upper pressure plate 15 of the workbench, and the bottom ends are connected to each other through the support plate 2. The bottom plate 3 is slidably connected to the upper pressure plate 15 through the first guide column 4, the second guide column 5, and the upper pressure plate 15. The bottom surface of the upper pressure plate 15 is installed with a height-conforming pin 7 and a height-conforming limit plate 9 in parallel. On one side of the height-conforming pin 7, a square groove is opened in the middle of the flat pad 17 installed on the bottom surface of the upper pressure plate 15 (see FIG. Figure 10 ), a connecting seat 20 is installed on the surface of the upper pressing plate 15, and a certain number of connecting pressing plates 8 are evenly distributed around the base of the connecting pressing plate 20. The heads of the connecting pressing plates 8 installed on the surface of the upper pressing plate 15 are tightly pressed against the connecting seat 20. A hydraulic press 21 is installed on the top plate above the upper pressing plate 15. The extended end of the hydraulic rod of the hydraulic press 21 is fixedly connected to the connecting seat 20. A conformal positioning structure is provided between the bottom plate 3 and the upper pressing plate 15;

[0033] See Figure 8 The conformal positioning structure includes a blank positioning block 12 and a support seat 14. The support seat 14 installed on the upper surface of the base plate 3 is in an "L" shape. The long seat end and the short seat end surface of the support seat 14 are respectively installed with a third guide column 18 and a fourth guide column 19. The support seat 14 is slidably connected to the blank positioning block 12 through the third guide column 18, the fourth guide column 19, and the blank positioning block 12. The blank positioning block 12 is an irregular shape and an inner groove is provided in the middle part. An auxiliary limit block 13 is provided on one side of the blank positioning block 12, and the head of the auxiliary limit block 13 passes through the side wall of the blank positioning block 12 and is inserted into the inner groove.

[0034] See Figure 7 、 Figure 9 On the side of the support seat 14, a bottom positioning structure is provided on the surface of the bottom plate 3, and the bottom positioning structure includes a blank limiting block 11. A through groove is provided in the middle part of the blank limiting block 11 installed on the bottom plate 3, and a guide vertical plate 16 is provided on the groove edge of the through groove facing the concave side of the bottom plate 3. A matching form-fitting clamping block assembly 10 is provided on the through groove of the blank limiting block 11. A special-shaped cavity is provided inside the form-fitting clamping block assembly 10. The form-fitting clamping block assembly 10 clamps the bottom of the special-shaped part into the through groove of the blank limiting block 11 as the tooling moves and is tightly fixed in place;

[0035] See Figure 5 The first guide column 4 and the second guide column 5 are both provided with the same guide sleeve 6 at the top. The first guide column 4 and the second guide column 5 can ensure the stable movement of the upper base plate 15. The third guide column 18 and the fourth guide column 19 are both surrounded by springs and the same follow-up guide sleeves are provided at the top of the guide columns. The third guide column 18 and the fourth guide column 19 ensure that the blank positioning block 12 can be pressed down stably, and the springs surrounding the guide columns have a buffering effect.

[0036] Working principle of this utility model:

[0037] Refer to the instruction manual Figures 1-11 When using the present invention, first manually clamp the special-shaped part through the form-fitting clamping block combination 10, then put the workpiece head into the blank positioning block 12, and use the auxiliary limit block 13 to fix the part, then start the hydraulic press 21, the upper base plate 15 moves downward along the first guide column 4 and the second guide column 5, and then the flat pad 17 presses down the blank positioning block 12, and the blank positioning block 12 moves downward along the direction of the third guide column 18 and the fourth guide column 19. As the part and the form-fitting clamping block combination 10 enter the blank limiting block 11 under the guidance of the guide vertical plate 16, until the flat pad 17 is aligned with the part blank reference surface, the contour pin 7, the contour limit block 13 and the top of the form-fitting clamping block combination 10 are aligned. At this time, the bottom of the part clamped by the form-fitting clamping block combination 10 is completely pressed into the blank limiting block 11, and the part is completed.

Claims

1. An automatic shaping structure for special-shaped and complex products, comprising a workbench, characterized in that: The base plate of the workbench is slidably connected through the first guide column, the second guide column and the upper pressure plate of the workbench. A conformal positioning structure is provided between the base plate and the upper pressure plate. The conformal positioning structure includes a support seat. A bottom positioning structure is provided on the surface of the base plate on the side of the support seat.

2. The automatic shaping structure for special-shaped complex products according to claim 1, characterized in that: The conformable positioning structure includes a blank positioning block and a support seat. The support seat installed on the upper surface of the base plate is in an "L" shape. The long seat end and the short seat end surface of the support seat are respectively installed with a third guide column and a fourth guide column. The support seat is slidably connected through the third guide column, the fourth guide column and the blank positioning block. The blank positioning block is irregular in shape and an inner groove is provided in the middle part. An auxiliary limit block is provided on one side of the blank positioning block and the head of the auxiliary limit block passes through the side wall of the blank positioning block and is inserted into the inner groove.

3. The automatic shaping structure for special-shaped complex products according to claim 1 or 2, characterized in that: The bottom positioning structure includes a blank limiting block, a through groove is provided in the middle part of the blank limiting block installed on the bottom plate, and a guide vertical plate is provided at the groove edge facing the concave side of the bottom plate, a matching form-fitting clamping block combination is provided on the through groove of the blank limiting block, and a special-shaped cavity is provided inside the form-fitting clamping block combination, and the form-fitting clamping block combination clamps the bottom of the special-shaped part into the through groove of the blank limiting block as the tooling moves and is tightly fixed in place.

4. The automatic shaping structure for special-shaped complex products according to claim 3, characterized in that: The two sides of the bottom plate of the workbench are provided with pick-up plates in parallel. The top ends of the pick-up plates are fixedly connected to the upper pressing plate of the workbench, and the bottom ends thereof are connected to each other through supporting plates.

5. The automatic shaping structure for special-shaped complex products according to claim 4, characterized in that: The top ends of the first guide post and the second guide post are both provided with the same guide sleeve, and the third guide post and the fourth guide post are both surrounded by a spring and have the same conformable guide sleeve on their top ends.

6. The automatic shaping structure for special-shaped complex products according to claim 5, characterized in that: The bottom surface of the upper pressing plate is provided with a contour pin and a contour limit plate in parallel. On one side of the contour pin, a square clearance groove is provided in the middle of the plane pad installed on the bottom surface of the upper pressing plate.

7. The automatic shaping structure for complex shaped products according to claim 6, characterized in that: A connecting seat is installed on the surface of the upper pressure plate, and a certain number of connecting pressure plates are evenly distributed around the base of the connecting seat. The heads of the connecting pressure plates installed on the surface of the upper pressure plate are tightly pressed against the connecting seat. A hydraulic press is installed on the top plate above the upper pressure plate, and the protruding end of the hydraulic rod of the hydraulic press is fixedly connected to the connecting seat.

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