Die structure for finely adjusting angle of bent product

Abstract

The utility model discloses a bending product angle fine adjustment die structure which comprises an upper die base, an upper padding plate, an upper clamping plate, a back stripping plate, a stripper plate, a lower die plate, a lower padding plate and a lower die base which are sequentially arranged from top to bottom, a punch push block is installed on the upper clamping plate, a lower die insert is installed on the lower die plate, a fixing base is installed in the stripper plate, and the punch push block is installed on the fixing base. A mounting cavity penetrating up and down is formed in the fixed seat, an adjusting block is rotationally connected into the mounting cavity, a pin rod for rotation is connected to the upper end of the adjusting block, the punch push block is located on the right side of the adjusting block, a first spring is arranged in the middle of the left side of the adjusting block, and the first spring is horizontally arranged and located over an insert knife edge of the lower die insert. The bending angle correcting device has the advantages that the pin rod and the adjusting block form a swing block structure, continuous stress at the two ends of the adjusting block can be avoided, metal fatigue at the connecting position of the adjusting block and the pin rod is avoided, the problem that stress on the adjusting block and the pin rod is large is solved, deformation and breakage of the adjusting block and the pin rod are avoided, and the correcting precision of the bending angle is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to die technical field, concretely is a kind of bending product angle fine adjustment die structure. BACKGROUND

[0002] With the accelerated fusion of global economy, market competition is increasingly white-hot, and competition is no longer simply the comparison of product quality or price, but has evolved into a contest of speed and flexibility. In such an environment, delivery time has become a direct manifestation of customer satisfaction and market responsiveness. In the process of die design and manufacturing, shortening the delivery time is often a weapon to improve competitiveness.

[0003] In some traditional stripper plate angle fine adjustment structures, the lever principle is used, so that the adjusting block and the fixed pin are under great stress, and after a long period of use, the adjusting block and the fixed pin may be deformed. As shown in FIG. Fig. 1-2 The adjusting block is fixed to the stripper plate by the fixed pin, the fixed pin is arranged at the middle position of the adjusting block, and the punch push block is arranged at the left side of the adjusting block. When the punch push block moves downward under the action of the punch, a downward pressure and a horizontal thrust can be generated on the adjusting block, which drives the adjusting block to rotate clockwise around the fixed pin to correct the bent part of the bent product. However, in this structure, the upper and lower ends of the adjusting block are continuously stressed, and metal fatigue occurs at the middle fixed pin, which may easily deform and break, posing a risk of damaging the die. At the same time, the force at the upper and lower ends of the adjusting block is transmitted to the fixed pin, which may also easily deform and break under long-term stress. UTILITY MODEL CONTENTS

[0004] The utility model aims to provide a kind of bending product angle fine adjustment die structure to solve the problems raised in the above background technology.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of bending product angle fine adjustment die structure, including upper die seat, upper backing plate, upper clamping plate, stripper back plate, stripper plate, lower die plate, lower backing plate and lower die seat sequentially from top to bottom, the upper clamping plate is installed with punch push block, the lower die plate is installed with lower die insert, the stripper plate is installed with fixed seat, the fixed seat is equipped with the installation cavity that penetrates up and down, the installation cavity is rotatably connected with adjusting block, the upper end of the adjusting block is connected with rotating pin, the punch push block is located at the right side of adjusting block, the left side middle part of the adjusting block is equipped with first spring, the first spring is horizontally arranged and located just above the insert cutting edge of lower die insert.

[0006] Further preferably, the adjusting block comprises a rotating part and a bending fine-tuning part arranged above and below, the rotating part is used for connecting with the pin rod, and the bending fine-tuning part is used for bending the product; the rotating part is provided with a pin rod hole in rotational connection with the pin rod, for the pin rod to pass through; the right side of the bending fine-tuning part is provided with a contact part used for contacting the punch push block, so as to facilitate the rotation of the adjusting block pushed by the punch push block.

[0007] Further preferably, the cross section of the rotating part is circular, and the pin rod hole is located in the middle of the rotating part, so as to improve the structural strength of this part.

[0008] Further preferably, the cross section of the contact part is a right-convex semicircular structure, so as to improve the structural strength of the contact part of the adjusting block and the punch push block, facilitate the rotation of the adjusting block pushed by the punch push block, and reduce the pressure on the adjusting block and the force transmitted to the pin rod through the cooperation of the arc surface of the contact part and the pushing slope of the punch push block, thereby reducing the risk of deformation of the adjusting block and the pin rod.

[0009] Further preferably, the fixing seat is provided with a horizontally arranged mounting hole used for mounting the first spring, one end of the mounting hole is in communication with the mounting cavity, and the other end of the mounting hole penetrates through the side surface of the fixing seat, so as to facilitate the processing of the mounting hole and the installation of the first spring.

[0010] Further preferably, the back plate stripping device is connected with an upper die resetting assembly used for resetting the movement of the back plate stripping device and the material stripping plate.

[0011] Further preferably, the upper die resetting assembly comprises a second spring, an isometric screw, an isometric sleeve and a screw plug, the second spring is movably arranged in the upper die seat and the upper backing plate, the isometric sleeve is fixed in the upper clamping plate, the upper end of the isometric screw is in abutment with the lower end of the second spring, the lower end of the isometric screw penetrates through the isometric sleeve and is connected with the back plate stripping device and the material stripping plate, and the screw plug is arranged at the upper end of the second spring. The isometric screw can always provide a downward force to the back plate stripping device through the second spring, in the mold opening state, the upper clamping plate and the back plate stripping device are in a separated state, and in the beginning of the mold closing movement, the material stripping plate can first contact and press the product, so as to prevent the product from being displaced, improve the bending fine-tuning accuracy, and improve the bending angle correction quality of the product; the isometric sleeve ensures the smooth and accurate up-down movement of the isometric screw, and the screw plug is used for plugging the upper end of the second spring.

[0012] Further preferably, a first locking screw connects the upper mold base, the upper pad, and the upper clamping plate to achieve a fixed connection between the upper mold base, the upper pad, and the upper clamping plate; a second locking screw connects the back stripper plate and the stripper plate to fix the back stripper plate and the stripper plate together; a third locking screw connects the lower template, the lower pad, and the lower mold base to fix the lower template, the lower pad, and the lower mold base together.

[0013] Beneficial Effects: The bending angle fine-tuning mold structure of this utility model, by setting the pin at the upper end of the adjusting block to form a swing block structure, can avoid continuous force on both ends of the adjusting block, avoid metal fatigue at the connection between the adjusting block and the pin, and avoid the problem of excessive force on the adjusting block and the pin. This effectively avoids the risk of deformation and breakage of the adjusting block and the pin, ensuring the accuracy of product bending angle fine-tuning, guaranteeing the accuracy and efficiency of bending angle correction, ensuring product dimensional stability, and improving safety performance. By changing the structure of the adjusting block, the size of the rotating part and the contact part with the punch push block of the adjusting block is increased, which can further strengthen the structural strength of the adjusting block and further prevent deformation. The pin and the adjusting block are both integrated in the fixed base, which facilitates disassembly and mold repair, and can greatly shorten the pin length, reducing the risk of pin deformation. The structure of this fine-tuning mold is stable, and the mechanical logic is simple. It not only has good performance and high processing accuracy, but can also be widely applied to other molds with similar structures, and has high application and promotion value. Attached Figure Description

[0014] Fig. 1 A schematic diagram of a mold structure for a conventional stripper plate angle fine-tuning structure disclosed in the background art of this utility model;

[0015] Fig. 2 for Fig. 1 A magnified schematic diagram of the mid-angle fine-tuning structure;

[0016] Fig. 3 This is a schematic diagram of the mold closing state structure of the bending product angle fine-tuning mold structure disclosed in the embodiments of this utility model;

[0017] Fig. 4 This is a schematic diagram of the mold opening state structure of the bending product angle fine-tuning mold structure disclosed in the embodiments of this utility model;

[0018] Fig. 5 This is a schematic diagram of the mating structure of the punch pusher, adjusting block, pin, fixing seat and lower die insert disclosed in the embodiments of this utility model;

[0019] Fig. 6 This is a schematic diagram of the structure of the adjustment block disclosed in the embodiments of this utility model.

[0020] Reference numerals: 1-Upper mold base, 2-Upper pad, 3-Upper clamping plate, 4-Removing back plate, 5-Removing plate, 6-Lower template, 7-Lower pad, 8-Lower mold base, 9-Fixed seat, 91-Mounting cavity, 92-Mounting hole, 10-Adjusting block, 101-Rotating part, 102-Bending fine-tuning part, 103-Pin hole, 104-Contact part, 11-Pin, 12-Punch push block, 121-Pushing inclined surface, 13-First spring, 14-Lower mold insert, 15-Upper mold reset assembly, 151-Second spring, 152-Equal height screw, 153-Equal height sleeve, 154-Plug, 16-First locking screw, 17-Second locking screw, 18-Third locking screw. Detailed Implementation

[0021] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0022] like Fig. 3-6As shown, a bending product angle fine-tuning mold structure is used for rapid correction of the bending angle of a bent product. It includes, from top to bottom, an upper mold base 1, an upper pad 2, an upper clamping plate 3, a backing plate 4, a stripper plate 5, a lower template 6, a lower pad 7, and a lower mold base 8. The upper mold structure, consisting of the upper mold base 1, upper pad 2, upper clamping plate 3, backing plate 4, stripper plate 5, and corresponding connected structural components, includes a fixed base 9, an adjusting block 10, a pin 11, and a punch pusher 12. The lower mold structure, consisting of the lower template 6, lower pad 7, lower mold base 8, and lower mold insert 14, is formed by the opening and closing actions between the upper and lower mold structures. This allows for re-bending and fine-tuning of the bending angle of the bent product, achieving rapid correction of the bending angle. The punch pusher 12 is mounted on the upper clamping plate 3 and can move up and down synchronously with the upper clamping plate 3. The lower die insert 14 is installed in the lower template 6 and is used to re-bend the already bent product when the mold is closed. The fixing seat 9 is installed in the stripper plate 5. The fixing seat 9 has a vertically penetrating mounting cavity 91. The mounting cavity 91 has an adjusting block 10 and a pin 11. The fixing seat 9 enables the adjusting block 10 and the pin 11 to be installed on the stripper plate 5. The installation is convenient and facilitates mold repair. The pin 11 is used for the rotating installation of the adjusting block 10, which is convenient for the adjusting block 10 to rotate. The punch pusher 12 is located to the right of the adjusting block 10. When the punch pusher 12 moves downward with the upper clamping plate 3, the punch pusher 12 can push the adjusting block 10 to rotate to the left around the pin 11 when the mold is closed. The adjusting block 10 will press the bent part of the product towards the insert cutting edge of the lower die insert 14 to achieve fine adjustment of the bending angle of the product. Furthermore, the pin 11 is installed inside the fixed base 9, which can reduce the length of the pin 11, reduce the force on the pin 11, and thus reduce the risk of its deformation. A first spring 13 is provided in the middle of the left side of the adjusting block 10. The first spring 13 is horizontally set and located directly above the insert cutting edge of the lower mold insert 14. The first spring 13 is used to reset the position of the adjusting block 10.

[0023] In this application, by setting the pin 11 at the upper end of the adjusting block 10, it serves only as a rotational positioning element for the adjusting block 10. The adjusting block 10 acts as a swing block via the pin 11, preventing the pin 11 from being subjected to forces at both ends. This avoids the problem of excessive forces on the adjusting block 10 and the pin 11, thereby preventing the risk of deformation of the adjusting block 10 and the pin 11. Furthermore, the swing block structure of the adjusting block 10 and the pin 11 avoids the problem of poor stability in adjusting the bending angle of the product due to the deformation of the adjusting block in a lever-type structure, and avoids the problems of parts getting stuck in the mold and mold damage caused by the deformation of the fixing pin.

[0024] In this application, the adjusting block 10 includes a rotating part 101, a bending fine-tuning part 102, a pin hole 103, and a contact part 104. The rotating part 101 is used to connect with the pin 11, which can be achieved by passing the pin 11 through the pin hole 103. The bending fine-tuning part 102 is used to apply pressure to the bent part of the product and bend it again, which can press the bent part of the product to apply pressure. The contact part 104 is used to contact the punch push block 12, receive the pushing force of the punch push block 12, and push the adjusting block 10 to rotate around the pin 11.

[0025] Based on the above solution, the rotating part 101 has a circular cross-section, and the pin hole 103 is located in the middle of the rotating part 101. Increasing the wall thickness between the pin hole 103 and the outer wall is equivalent to changing the strip-shaped structure of the adjusting block 10 in the prior art, thereby improving the structural strength of the rotating part 101 and increasing the service life of the adjusting block 10. At the same time, the thickness from the pin hole 103 to the side is increased, which improves the structural strength of the adjusting block 10.

[0026] Based on the above scheme, the cross-section of the contact part 104 is a semi-circular structure convex to the right. First, it facilitates the pusher block 12 to push the adjusting block 10 to rotate. By increasing the structural strength of the part of the adjusting block 10 that contacts the pusher block 12, deformation of the adjusting block 10 under force can be effectively prevented. The lower end of the pusher block 12 is provided with a pushing inclined surface 121 that contacts the contact part 104, which is used to push the adjusting block 10 to rotate gradually, reducing the downward pushing force generated by the pusher block 12 on the adjusting block 10, reducing the force on the pin 11, and thus reducing the risk of deformation of the adjusting block and the pin.

[0027] In the solution of this application, the fixing base 9 is provided with a horizontally arranged mounting hole 92 for mounting the first spring 13; one end of the mounting hole 92 is connected to the mounting cavity 91, and the other end of the mounting hole 92 passes through the side of the fixing base 9, which facilitates the processing of the mounting hole 92 and facilitates the installation of the first spring 13, reducing the difficulty of processing and assembly.

[0028] In the solution of this application, the back plate 4 is connected to the upper mold reset assembly 15. The upper mold reset assembly 15 can provide a downward force to the back plate 4 and the stripper plate 5, so that during the mold closing process, the stripper plate 5 can first press the upper surface of the product to ensure that the product is fixed in position before bending and fine adjustment, thereby improving the fine adjustment quality and accuracy, and is also used for the motion reset of the back plate 4 and the stripper plate 5.

[0029] Based on the above scheme, the upper mold reset assembly 15 includes a second spring 151, an equalizing screw 152, an equalizing sleeve 153, and a screw plug 154. The second spring 151 is movably disposed within the upper mold base 1 and the upper pad 2, and the upper end of the second spring 151 is sealed by the screw plug 154. The equalizing sleeve 153 is fixed within the upper clamping plate 3 to ensure smooth and precise up-and-down movement of the equalizing screw 152. The upper end of the equalizing screw 152 abuts against the lower end of the second spring 151, and the lower end of the equalizing screw 152 passes through the equalizing sleeve 153 and engages with the release back plate 4 and the release... The stripper plate 5 is connected. When the mold begins to close, the stripper plate 4 and stripper plate 5 are subjected to a downward force from the upper mold reset assembly 15. There is a gap between the stripper plate 4 and the upper clamping plate 3. The stripper plate 5 first presses down on the upper surface of the product, fixing the product in place. As the upper mold structure continues to descend, the second spring 151 is compressed, and the equalizing screw 153 moves upward relative to the equalizing sleeve 154. The gap between the upper clamping plate 3 and the stripper plate 4 is reduced to complete closure. At this time, the punch push block 12 pushes the adjusting block 10 to fine-tune the bent part of the product. During the mold opening process, due to the elastic force of the second spring 151, the stripper plate 4 and the upper clamping plate 3 slowly separate, realizing the movement reset of the stripper plate 4 and the stripper plate 5.

[0030] In this application, a first locking screw 16 connects the upper mold base 1, the upper pad 2, and the upper clamping plate 3 to fix their relative positions, ensuring synchronous movement. A second locking screw 17 connects the stripper plate 4 and the stripper plate 5 to fix them together, ensuring synchronous movement. A third locking screw 18 connects the lower mold plate 6, the lower pad 7, and the lower mold base 8 to fix them together.

[0031] In this application, the workflow of the angle fine-tuning mold structure is as follows: the bent product is transported to the set position, the mold begins to close, the upper mold structure moves downward under the action of the punch, the stripper plate 4 and the stripper plate 5 are under the action of the upper mold reset assembly 15, the stripper plate 5 first contacts the product and presses the product onto the lower mold insert 14, and as the upper mold structure continues to move downward, the stripper plate 5 keeps pressing the product, the upper clamping plate 3 drives the punch push block 12 to continue to move downward, the punch push block 12 contacts the contact part 104 of the adjusting block 10, drives the adjusting block 10 to rotate around the pin 11, and the bending fine-tuning part 102 of the adjusting block 10 begins to press the bent part of the product downward. The insert blade of the mold insert 14 moves to fine-tune the bending of the product, thereby correcting the bending angle of the product until the mold is completely closed. When the mold opens, the upper mold structure begins to move upward. The back plate 4 and the stripper plate 5 remain stationary under the action of the upper mold reset assembly 15. The upper clamping plate 3 drives the punch push block 12 to move upward. The adjusting block 10 rotates counterclockwise to reset under the action of the first spring 13. The bending fine-tuning part 102 of the adjusting block 10 separates from the product. As the upper mold structure continues to move upward, it drives the back plate 4 and the stripper plate 5 to move upward. The stripper plate 5 separates from the product, completing the fine-tuning and correction of the bending angle of the bent product.

[0032] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A bending product angle fine-tuning mold structure, comprising, from top to bottom, an upper mold base (1), an upper pad plate (2), an upper clamping plate (3), a stripping back plate (4), a stripping plate (5), a lower template (6), a lower pad plate (7), and a lower mold base (8), characterized in that: A punch pusher (12) is installed on the upper clamping plate (3), a lower die insert (14) is installed on the lower template (6), a fixing seat (9) is installed in the stripper plate (5), and a mounting cavity (91) that runs vertically through the fixing seat (9) is provided on the fixing seat (9). An adjusting block (10) is rotatably connected in the mounting cavity (91). A rotating pin (11) is connected to the upper end of the adjusting block (10). The punch pusher (12) is located on the right side of the adjusting block (10). A first spring (13) is provided in the middle of the left side of the adjusting block (10). The first spring (13) is horizontally set and located directly above the insert cutting edge of the lower die insert (14).

2. The bending product angle fine-tuning mold structure according to claim 1, characterized in that: The adjustment block (10) includes a rotating part (101) and a bending fine-tuning part (102) arranged vertically. The rotating part (101) is provided with a pin hole (103) that is rotatably connected to the pin (11). The right side of the bending fine-tuning part (102) is provided with a contact part (104) for contacting the punch push block (12).

3. The bending product angle fine-tuning mold structure according to claim 2, characterized in that: The rotating part (101) has a circular cross-section, and the pin hole (103) is located in the middle of the rotating part (101).

4. The bending product angle fine-tuning mold structure according to claim 2, characterized in that: The contact part (104) has a semi-circular structure that protrudes to the right, and the lower end of the punch pusher (12) is provided with a pushing inclined surface (121) that contacts the contact part (104).

5. The bending product angle fine-tuning mold structure according to claim 1, characterized in that: The fixing base (9) is provided with a horizontally arranged mounting hole (92) for mounting the first spring (13). One end of the mounting hole (92) is connected to the mounting cavity (91), and the other end of the mounting hole (92) passes through the side of the fixing base (9).

6. The bending product angle fine-tuning mold structure according to claim 1, characterized in that: The back plate (4) is connected to the upper mold reset assembly (15).

7. The bending product angle fine-tuning mold structure according to claim 6, characterized in that: The upper mold reset assembly (15) includes a second spring (151), an equalizing screw (152), an equalizing sleeve (153), and a screw plug (154). The second spring (151) is movably disposed in the upper mold base (1) and the upper pad (2). The equalizing sleeve (153) is fixed in the upper clamping plate (3). The upper end of the equalizing screw (152) abuts against the lower end of the second spring (151). The lower end of the equalizing screw (152) passes through the equalizing sleeve (153) and is connected to the stripping plate (4) and the stripping plate (5). The screw plug (154) is disposed at the upper end of the second spring (151).

8. The bending product angle fine-tuning mold structure according to claim 1, characterized in that: A first locking screw (16) connects the upper mold base (1), the upper pad (2), and the upper clamping plate (3). A second locking screw (17) connects the stripping back plate (4) and the stripping plate (5). A third locking screw (18) connects the lower template (6), the lower pad (7), and the lower mold base (8).

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