Swing flanging wedge mechanism
By designing the inclined surface and locking device of the swing-flanging wedge mechanism, the problem of difficult die removal after negative angle flanging is solved, and the flanging punch can be easily removed, ensuring the smooth progress of the stamping process.
Patent Information
- Application Number
- CN202423239782.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-26
- Publication Date
- 2026-01-02
- Estimated Expiration
- 2034-12-26
AI Technical Summary
In the existing technology, there is a problem with the difficulty of removing the die after a negative angle flanging, especially when the flanging angle is less than 90°, making it difficult to remove the automotive sheet metal parts from the flanging punch.
The oscillating flanging wedge mechanism, including an upper slide block and an oscillating block, is adopted. By setting an inclined surface and a locking device, the oscillating punch can be rotated and retracted, ensuring that the oscillating block does not rotate accidentally during the stamping process.
It effectively solves the problem of mold removal when the flanging angle is less than 90°, realizes the convenient removal of the flanging punch, and avoids stamping errors.
Smart Images
Figure CN223748318U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of automobile body manufacturing, more particularly to a swing flanging inclined wedge mechanism. BACKGROUND
[0002] In the automobile body production process, there is a process of flanging the edge of the automobile sheet metal part. After flanging, the automobile sheet metal part body and the automobile sheet metal stamping part form a certain angle, which is the flanging angle. When the flanging angle is greater than or equal to 90°, the automobile sheet metal structure is relatively simple, and the automobile sheet metal after stamping can be directly taken off from the flanging punch. When the flanging angle is less than 90°, the automobile sheet metal after stamping forms a half-wrapped state to the flanging punch, which causes the automobile sheet metal to be difficult to demold. SUMMARY
[0003] To solve the technical problem of difficult demolding after negative angle flanging in the prior art, the utility model provides a side wall positioning clamp, which can realize flanging stamping of sheet metal parts with a flanging angle less than 90°, and facilitate the demolding of the flanging punch after stamping.
[0004] To solve the above technical problems, the utility model provides a swing flanging inclined wedge mechanism, which comprises an upper sliding block and a swing block, the upper sliding block is provided with a flanging recess at the lower front end, the swing block is provided with a rotating shaft, the swing block rotates around the rotating shaft, the swing block is provided with a flanging punch at the upper front end, the lower rear end of the upper sliding block is provided with a first inclined surface, the lower rear end of the swing block is provided with a second inclined surface, the first inclined surface is parallel to the second inclined surface and is in sliding connection, and the lower side of the swing block is further provided with a locking device for locking the rotation of the swing block.
[0005] In the technical solution, the upper slider is connected with the power end of the stamping device, and the rotating shaft of the swing block is fixedly installed at a determined position and can rotate about the rotating shaft. When the automobile sheet metal is flanged, the automobile sheet metal is placed between the flanging concave die and the flanging convex die, the power end of the stamping device drives the upper slider to move so that the flanging concave die is pressed against the flanging convex die, and finally the flanging concave die abuts against the flanging convex die, thereby realizing flanging of the automobile sheet metal. Since the flanging angle is less than 90 degrees, the side of the flanging convex die subjected to the stamping is a concave surface, and the flanging concave die is difficult to directly extend into the concave surface of the flanging convex die due to the obstruction of the structure of the flanging convex die. Therefore, the lower rear end of the upper slider is provided with a first inclined surface, and the lower rear end of the swing block is provided with a second inclined surface. When the upper slider moves downward under the action of the power end of the stamping device, the first inclined surface and the second inclined surface first come into contact. The power end of the stamping device only drives the upper slider to move in the vertical direction without limiting the movement of the upper slider in other directions. Therefore, the upper slider slides along the second inclined surface under the action of the downward pressure, so that the upper slider has a horizontal movement, and the flanging concave die located at the front end of the upper slider extends into the concave surface of the flanging convex die. When the flanging is completed, the upper slider and the flanging concave die move upward under the action of the power end of the stamping assembly. Since the flanging angle is less than 90 degrees, the flanged automobile sheet metal forms a semi-enclosed state with the flanging convex die, and the flanging convex die is difficult to move out of the automobile sheet metal in a straight line. Therefore, the swing block is fixedly installed through the rotating shaft, and the rotating shaft only fixes the position of the swing block without limiting the rotation thereof. When the stamping is completed, the swing block is driven to rotate about the rotating shaft, so that the swing block drives the flanging convex die to rotate out of the automobile sheet metal. During the stamping process, the swing block may be accidentally rotated due to the pressure, which may cause stamping errors. In order to ensure that the swing block does not accidentally rotate, the locking device is further arranged below the swing block. When the locking device is in the locked state, the swing block cannot rotate about the rotating shaft. When the locking device is unlocked, the swing block can rotate about the rotating shaft, thereby realizing the ejection of the die.
[0006] Preferably, the locking device comprises a lower slider, a first inclined wedge block is arranged at the lower front end of the swing block, a second inclined wedge block is arranged at the upper front end of the lower slider, the first inclined wedge block is connected with the second inclined wedge block in an inclined wedge manner, and the lower slider can slide in the horizontal direction along the rotating direction of the swing block.
[0007] Preferably, limit hooks are further arranged at the two sides of the upper slider, limit grooves are arranged at the two sides of the swing block, the limit grooves are arranged along the relative sliding direction of the upper slider and the swing block, the hook heads of the limit hooks are hooked into the limit grooves and are in sliding connection with the limit grooves.
[0008] Preferably, the lower rear end of the upper slide block is further provided with a first platform, the upper rear end of the swing block is provided with a second platform, the first platform is parallel to the second platform during stamping, and the first platform and the second platform are both provided with fixed limiting pads.
[0009] Preferably, a reinforcing rib is arranged between the flanging punch and the swing block, and a plurality of reinforcing ribs are arranged along the length direction of the flanging punch.
[0010] Preferably, the front end of the flanging recess die is further provided with an abutting portion abutting against the flanging punch.
[0011] Preferably, the swing flanging inclined wedge mechanism is further provided with a first driving member, and the driving end of the first driving member is connected with the lower slide block.
[0012] Preferably, the swing flanging inclined wedge mechanism is further provided with a second driving member, and the driving end of the second driving member is connected with the swing block to drive the swing block to rotate.
[0013] Preferably, the lower surface of the swing block is provided with a first supporting block, the upper surface of the lower slide block is provided with a second supporting block, the first supporting block and the second supporting block are slidably connected in the horizontal direction, and the first supporting block and the second supporting block abut against each other in the vertical direction.
[0014] Preferably, the front end of the flanging punch is further provided with a supporting plate.
[0015] Compared with the prior art, the beneficial effects of the utility model are as follows: the swing block is arranged to be rotatable, the flanging punch is arranged on the swing block, the flanging punch can be turned out from the automobile sheet metal with a flanging angle less than 90 DEG by rotating the swing block, the mold can be conveniently withdrawn, the locking device is arranged to lock the swing block during stamping to avoid accidental rotation of the swing block to cause stamping errors, the first inclined surface is arranged on the upper slide block, the second inclined surface is arranged on the swing block, the moving direction of the upper slide block is changed without changing the direction of the external force acting on the upper slide block through the sliding connection between the first inclined surface and the second inclined surface, and the flanging recess die on the upper slide block can be inserted into the concave surface of the flanging punch. BRIEF DESCRIPTION OF DRAWINGS
[0016] Figure 1 is the perspective view of the swing flanging inclined wedge mechanism of the utility model;
[0017] Figure 2 is the half sectional view of the swing flanging inclined wedge mechanism of the utility model;
[0018] Figure 3 is the perspective view of the swing block of the swing flanging inclined wedge mechanism of the utility model.
[0019] In the drawings: 1, the upper slider; 2, swing block; 3, locking device; 4, flanging concave die; 5, flanging convex die; 6, limiting pad; 7, reinforcing rib; 8, first driving part; 9, second driving part; 11, first inclined surface; 12, first platform; 13, limiting hook; 21, second inclined surface; 22, first inclined wedge block; 23, second platform; 24, limiting groove, 25, first supporting block; 31, lower slider; 32, second inclined wedge block; 33, second supporting block; 34, supporting plate; 41, abutment portion. DETAILED DESCRIPTION
[0020] The drawings are only used for illustrative description, and should not be understood as limiting the patent; in order to better illustrate the embodiment, some components in the drawings can be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings can be omitted. The positional relationship described in the drawings is only used for illustrative description, and should not be understood as limiting the patent.
[0021] The same or similar reference numerals in the drawings of the embodiments of the present application correspond to the same or similar components; in the description of the present application, it should be understood that if the terms "upper", "lower", "left", "right", "long", "short" and the like indicate the orientation or positional relationship shown in the drawings, only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, structure and operation, therefore the terms describing the positional relationship in the drawings are only used for illustrative description, and should not be understood as limiting the patent, for those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.
[0022] The technical scheme of the present application will be further described in detail below by specific embodiments, and in conjunction with the drawings:
[0023] Embodiment 1
[0024] As Figure 1As shown, a kind of swing flanging inclined wedge mechanism, including upper slider 1 and swing block 2, upper slider 1 is provided with flanging concave die 4 in lower front end, swing block 2 is provided with rotating shaft 26, swing block 2 rotates around rotating shaft 26, swing block 2 is provided with flanging convex die 5 in upper front end, the lower rear end of upper slider 1 is provided with first inclined surface 11, the lower rear end of swing block 2 is provided with second inclined surface 21, first inclined surface 11 is parallel with second inclined surface 21 and is slidably connected, swing block 2 is further provided with locking device 3 for locking the rotation of swing block 2 below.The upper slider 1 and swing block 2 are provided, wherein the lower front end of the upper slider 1 is provided with the flanging concave die 4, the upper front end of the swing block 2 is provided with the flanging convex die 5, in use, the upper slider 1 is connected with the power end in the stamping device, the rotating shaft 26 of the swing block 2 is fixedly installed in the determined position, and the swing block 2 can rotate around the rotating shaft 26.When flanging automobile sheet metal, the automobile sheet metal is placed between the flanging concave die 4 and the flanging convex die 5, the power end in the stamping device drives the upper slider 1 to move so that the flanging concave die 4 is pressed to the flanging convex die 5, finally the flanging concave die 4 abuts against the flanging convex die 5, thereby realizing the flanging of the automobile sheet metal.As the flanging angle is less than 90 degrees, the side of the flanging convex die 5 subjected to the stamping is concave, and the flanging concave die 4 is difficult to directly extend into the concave side of the flanging convex die 5 due to the obstruction of the structure of the flanging convex die 5, therefore the lower rear end of the upper slider 1 is provided with the first inclined surface 11, and the lower rear end of the swing block 2 is provided with the second inclined surface 21, when the upper slider 1 is driven by the power end of the stamping device to move downward, the first inclined surface 11 and the second inclined surface 21 first contact.The power end of the stamping device only drives the upper slider 1 to move in the vertical direction without limiting the movement of the upper slider 1 in other directions, therefore the upper slider 1 slides along the second inclined surface 21 under the action of the downward pressure, thereby enabling the upper slider 1 to move in the horizontal direction, so that the flanging concave die 4 located in the front end of the upper slider 1 extends into the concave side of the flanging convex die 5.When the flanging is completed, the upper slider 1 and the flanging concave die 4 move upward under the action of the power end of the stamping assembly, as the flanging angle is less than 90 degrees, the flanging convex die 5 is difficult to move out of the automobile sheet metal by the linear movement due to the semi-wrapping state of the flanging convex die 5 by the flanged automobile sheet metal.Therefore the swing block 2 is fixedly installed through the rotating shaft 26, the rotating shaft 26 only fixes the position of the swing block 2 without limiting the rotation thereof, when the stamping is completed, the swing block 2 is driven to rotate around the rotating shaft 26, so that the swing block 2 can drive the flanging convex die 5 to rotate out of the automobile sheet metal.During the stamping process, the swing block 2 may be accidentally rotated due to the pressure, which may cause stamping errors.In order to ensure that the swing block 2 does not accidentally rotate, the locking device 3 is further provided below the swing block 2, when the locking device 3 is in the locked state, the swing block 2 cannot rotate around the rotating shaft 26, when the locking device 3 is unlocked, the swing block 2 can rotate around the rotating shaft 26, thereby realizing the die withdrawal.
[0025] As Figure 1As shown, the locking device 3 comprises a lower slider 31, the lower front end of the swing block 31 is provided with a first inclined wedge 22, the upper front end of the lower slider 31 is provided with a second inclined wedge 32, the first inclined wedge 22 is connected with the second inclined wedge 32 in a wedge manner, and the lower slider 22 can slide in the horizontal direction along the rotation direction of the swing block 2. The locking device 3 can support the lower bottom surface of the swing block 2 to offset the torque of the swing block 2 during stamping, so as to realize the locking of the rotation of the swing block 2. The lower end of the swing block 2 is provided with the lower slider 31, the lower front end of the swing block 2 is provided with the first inclined wedge 22, and the upper front end of the lower slider 31 is provided with the second inclined wedge 32. The first inclined wedge 22 and the second inclined wedge 32 can be connected in a wedge manner. The first inclined wedge 22 and the second inclined wedge 32 can slide in the horizontal direction to have different heights. When stamping is needed, the lower slider 31 is driven to move so that the lower end surface of the first inclined wedge 22 abuts against the upper end surface of the second inclined wedge, the first inclined wedge 22 and the second inclined wedge 32 have the maximum height, the bottom surface of the swing block 2 is supported, and the support force of the second inclined wedge 32 on the first inclined wedge 22 offsets the torque of the swing block 2 during stamping, so that the swing block 2 does not rotate during stamping. When the stamping is completed and the die is needed to be removed, the lower slider 31 is driven to move so that the first inclined wedge 22 and the second inclined wedge 32 are separated, and at this time the bottom surface of the swing block 2 loses the support, so that the swing block 2 can rotate to remove the die.
[0026] As shown in the drawings, Figure 1 The two sides of the upper slider 1 are also provided with limiting hooks 13, and the two sides of the swing block 2 are provided with limiting grooves 24. The limiting grooves 24 are arranged along the relative sliding direction of the upper slider 1 and the swing block 2, the hook head of the limiting hook 13 is hooked into the limiting groove 24 and is connected with the limiting groove 24 in sliding manner. During stamping, it is necessary to ensure that the positions of the upper slider 1 and the swing block 2 in the two side directions do not deviate, therefore, the limiting hooks 13 are arranged on the two sides of the upper slider 1, the limiting grooves 24 are arranged on the two sides of the swing block 2, the limiting hooks 13 are hooked into the limiting grooves 24, and the relative positions of the upper slider 1 and the swing block 2 in the two side directions are fixed. The limiting grooves 24 are arranged along the relative sliding direction of the upper slider 1 and the swing block 2, and the limiting hook 13 is connected with the limiting groove 24 in sliding manner, so that the limiting hook 13 and the limiting groove 24 do not affect the relative movement of the upper slider 1 and the swing block 2 during normal work.
[0027] As shown in the drawings, Figure 2As shown, the lower rear end of the upper slide block 1 is further provided with a first platform 12, and the upper rear end of the swing block 2 is provided with a second platform 23. The first platform 12 is parallel to the second platform 23 during stamping, and the first platform 12 and the second platform 23 are both provided with a fixed limiting pad 6. The upper slide block 1 moves downward under the action of the stamping device until the flanging concave die 4 and the flanging convex die 5 abut, and in this process, the flanging convex die 5 bears most of the force of the stamping device, and in this process, it is easy to cause the flanging convex die 5 to break due to excessive movement of the upper slide block 1. Therefore, the lower rear end of the upper slide block 1 is further provided with a first platform 12, and the upper rear end of the swing block 2 is provided with a second platform 23. The first platform 12 is parallel to the second platform 23 during stamping, and when the upper slide block 1 moves to a certain position, the first platform 12 and the second platform 23 abut, supporting the upper slide block 1, thereby limiting the movement of the upper slide block 1 and sharing the pressure originally concentrated on the flanging convex die 5. At the same time, the first platform 12 and the second platform 23 are both provided with a fixed limiting pad 6, which can enhance the supporting effect and prevent the first platform 12 and the second platform 23 from sliding relative to each other after abutting.
[0028] As shown in Figure 3 , a reinforcing rib 7 is arranged between the flanging convex die 5 and the swing block 2. The reinforcing rib 7 is provided with a plurality of reinforcing ribs 7 arranged along the length direction of the flanging convex die 5. The reinforcing rib 7 can enhance the connection between the flanging convex die 5 and the swing block 2, so that the flanging convex die 5 can bear greater pressure and is not easy to break. Since the reinforcing range of a single reinforcing rib 7 is limited, it is not possible to strengthen the connection between the entire flanging convex die 5 and the swing block 2, so a plurality of reinforcing ribs 7 are needed, and the plurality of reinforcing ribs 7 are arranged along the length direction of the flanging convex die 5 to strengthen the connection between the entire flanging convex die 5 and the swing block 2.
[0029] As shown in Figure 2 , the front end of the flanging concave die 4 is further provided with an abutting portion 41 abutting against the flanging convex die 5. The abutting portion 41 is arranged according to the flanging requirement, and abutting against the flanging convex die 5 to limit the stamping of the flanging concave die 4 from being excessive, causing the automobile sheet metal to deform excessively and not meeting the product requirements.
[0030] Embodiment 2
[0031] This embodiment is similar to the above-mentioned embodiment 1, and the difference is that, as shown in Figure 1 , the swing flanging inclined wedge mechanism is further provided with a first driving member 8, and the driving end of the first driving member 8 is connected with the lower slide block 31. The first driving member 8 is used to drive the lower slide block 31 to move, thereby realizing automatic limiting and releasing of the rotation of the swing block 2.
[0032] As shown in Figure 1As shown, the swing flanging inclined wedge mechanism is also provided with a second driving member 9, a driving end of the second driving member 9 is connected with the swing block 2 to drive the swing block 2 to rotate.
[0033] Embodiment 3
[0034] This embodiment is similar to the above-mentioned embodiment 1, and the difference is that, as shown in the figure, Figure 2 As shown, the lower surface of the swing block 2 is provided with a first supporting block 25, the upper surface of the lower slide block 31 is provided with a second supporting block 33, the first supporting block 25 and the second supporting block 33 are slidably connected in the horizontal direction, and the first supporting block 25 and the second supporting block 33 abut in the vertical direction. The first supporting block 25 and the second supporting block 33 are arranged at the position where the swing block 2 has the maximum stress during stamping, when the bottom surface of the first inclined wedge block 22 abuts against the upper surface of the second inclined wedge block 32, the first supporting block 25 also abuts against the second supporting block 33, thereby supporting the swing block 2. When the lower slide block 31 slides, the first supporting block 25 and the second supporting block 33 also slide relatively, when the first inclined wedge block 22 and the second inclined wedge block 32 are disengaged, the first supporting block 25 and the second supporting block 33 are also disengaged, so that the first supporting block 25 and the second supporting block 33 do not affect the rotation of the swing block 2.
[0035] As shown in the figure, Figure 1 As shown, the front end of the flanging punch 5 is also provided with a supporting plate 33. The supporting plate 33 directly supports the stress part of the flanging punch 5, and improves the stress of the flanging punch 5.
[0036] Obviously, the above-mentioned embodiments of the utility model are only examples for clearly illustrating the utility model, and are not the limitation to the embodiments of the utility model. For the ordinary skilled in the art, on the basis of the above-mentioned description, other different forms of changes or variations can be made. Here, it is not necessary and impossible to exhaust all the embodiments. Any modification, equivalent replacement and improvement, etc. made in the spirit and principle of the utility model should be included in the protection scope of the utility model claims.
Claims
1. A swing flanging cam mechanism characterized by comprising: The invention relates to a swing flanging inclined wedge mechanism, which comprises an upper slide block (1) and a swing block (2), the lower front end of the upper slide block (1) is provided with a flanging concave die (4), the swing block (2) is provided with a rotating shaft (26), the swing block (2) rotates around the rotating shaft (26), the upper front end of the swing block (2) is provided with a flanging convex die (5), the lower rear end of the upper slide block (1) is provided with a first inclined surface (11), the lower rear end of the swing block (2) is provided with a second inclined surface (21), the first inclined surface (11) is parallel to the second inclined surface (21) and is in sliding connection, the lower side of the swing block (2) is further provided with a locking device (3) for locking the rotation of the swing block (2).
2. A swing flanging cam mechanism according to claim 1, wherein The locking device (3) comprises a lower slide block (31), the lower front end of the swing block (2) is provided with a first inclined wedge block (22), the upper front end of the lower slide block (31) is provided with a second inclined wedge block (32), the first inclined wedge block (22) is in inclined wedge connection with the second inclined wedge block (32), and the lower slide block (31) can slide in the horizontal direction along the rotating direction of the swing block (2).
3. A swing flanging cam mechanism according to claim 1, wherein The two sides of the upper slide block (1) are further provided with limiting hooks (13), the two sides of the swing block (2) are provided with limiting grooves (24), the limiting grooves (24) are arranged along the relative sliding direction of the upper slide block (1) and the swing block (2), the hook head of the limiting hook (13) is hooked into the limiting groove (24) and is in sliding connection with the limiting groove (24).
4. A swing flanging cam mechanism according to claim 1, wherein The lower rear end of the upper slide block (1) is further provided with a first platform (12), the upper rear end of the swing block (2) is provided with a second platform (23), the first platform (12) is parallel to the second platform (23) during stamping, and the first platform (12) and the second platform (23) are both provided with fixed limiting pads (6).
5. A swing flanging cam mechanism according to claim 1, wherein A reinforcing rib (7) is arranged between the flanging convex die (5) and the swing block (2), and a plurality of reinforcing ribs (7) are arranged along the length direction of the flanging convex die (5).
6. A swing flanging cam mechanism according to claim 1, wherein The front end of the flanging concave die (4) is further provided with an abutting portion (41) abutting against the flanging convex die (5).
7. A swing flanging cam mechanism according to claim 2, wherein The swing flanging inclined wedge mechanism is further provided with a first driving member (8), and the driving end of the first driving member (8) is connected with the lower slide block (31).
8. A swing flanging cam mechanism according to claim 1, wherein The swing flanging inclined wedge mechanism is further provided with a second driving member (9), and the driving end of the second driving member (9) is connected with the swing block (2) to drive the swing block (2) to rotate.
9. A swing flanging cam mechanism according to claim 2, wherein The lower surface of the swing block (2) is provided with a first supporting block (25), the upper surface of the lower slide block (31) is provided with a second supporting block (33), the first supporting block (25) and the second supporting block (33) are in sliding connection in the horizontal direction, and the first supporting block (25) and the second supporting block (33) abut against each other in the vertical direction.
10. A swing flanging cam mechanism according to claim 1, wherein The front end of the flanging convex die (5) is further provided with a supporting plate (51).