Anti-cracking stamping die for welding part

Abstract

The anti-cracking stamping die comprises a base and a hydraulic rod, an installation base is arranged on the upper end face of the base, a die plate assembly is arranged at the lower end of the hydraulic rod, the die plate assembly is connected with the installation base in a sliding mode, and an anti-cracking assembly is arranged on the inner wall of the installation base. The stamping and bending device is simple in structure and reasonable in design, pressing force of the hydraulic rod is matched with resistance of the resistance rod to enable a welding part to be pressed and protected when a welding part is bent, it is guaranteed that force on the two sides cannot affect the welding part in the stamping and bending process, the product quality and the finished product rate are guaranteed, and production efficiency is improved. And meanwhile, rapid resetting of the lower die plate after stamping of the welding part is completed is achieved, the lower die plate can return to the position above the resistance rod again to prepare for next-time stamping, sufficient protection is provided for the surface of a product through a buffer pad, pressure borne by a welding seam is reduced, and the product quality is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of stamping die equipment, in particular to an anti-cracking stamping die for welding parts. Background Art

[0002] In today's manufacturing industry, stamping dies, as a widely used process equipment, play a vital role. Using stamping dies, materials can be cut, formed or bent to produce various precision parts. Welding parts, as a common semi-finished or finished product, often require the use of stamping dies for bending, punching, cutting and other operations during their processing to meet the design and functional requirements of complex components. However, in this process, especially in the stamping and bending process, how to ensure the strength and integrity of welded parts has become a major challenge facing the manufacturing industry.

[0003] Deficiencies of existing technology:

[0004] At present, when stamping and bending welded parts, stamping dies usually directly act on the material through downward pressure to change the shape and size of the material. Although this method is simple and efficient, it has significant defects when processing welded parts. Since the welding parts of welded parts are relatively fragile, the force applied to the bending parts during the stamping and bending process will directly affect the welds of the welded parts, causing cracks or even twisting and fracture at the welds. Especially in applications with high strength or high precision requirements, the generation of such cracks has a great impact on the quality and yield of the product. Therefore, traditional stamping dies can no longer meet the actual use requirements of stamping and bending welded parts. Utility Model Content

[0005] The utility model aims to provide a crack-proof stamping die for welding parts to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an anti-crack stamping die for welding parts, comprising a base and a hydraulic rod, a mounting seat is arranged on the upper end surface of the base, a template assembly is arranged at the lower end of the hydraulic rod, the template assembly is slidably connected with the mounting seat, and an anti-crack assembly is arranged on the inner wall of the mounting seat;

[0007] The anti-crack component comprises:

[0008] A screw rod, the screw rod is movably arranged in a mounting cavity at the upper end of the mounting seat body, and the upper end of the screw rod is rotatably connected to a positioning hole on the mounting seat;

[0009] A lifting sleeve, the lifting sleeve is arranged at the lower end of the screw rod and is threadedly connected to the screw rod, and the lower end of the lifting sleeve is connected to a compression spring;

[0010] A resistance rod is rotatably arranged in a mounting cavity at the upper end of the mounting seat body and is located below the screw rod. One end of the resistance rod is connected to the lower end of the compression spring, and the other end of the resistance rod passes through the mounting cavity at the upper end of the mounting seat body and is located below the template assembly.

[0011] Preferably, the template assembly includes:

[0012] An upper template, wherein the upper template is arranged at the lower end of the hydraulic rod;

[0013] A lower template, the lower template is movably arranged in the mounting seat and is slidably connected to the inner wall of the mounting seat;

[0014] An electromagnet is arranged in a cavity on the upper template, and a permanent magnet matching the electromagnet is arranged inside the lower template;

[0015] A buffer pad is arranged on an end surface of an adjacent side of the upper template and the lower template.

[0016] Preferably, a hexagonal hole is formed at the upper end of the screw rod.

[0017] Preferably, a pressure indicating rod is provided on the side wall of the lifting sleeve, and one end of the pressure indicating rod passes through a sliding groove on the side wall of the mounting seat and is located outside the mounting seat.

[0018] Preferably, a pulley for reducing friction with the lower template is provided at one end of the resistance rod away from the compression spring.

[0019] Preferably, the buffer pads are symmetrically arranged on the end surfaces of the upper template and the lower template and correspond to each other up and down.

[0020] Compared with the prior art, the beneficial effects of the utility model are:

[0021] The anti-crack stamping die for a welded part is provided with an anti-crack component, which includes a screw rod, a lifting sleeve, a compression spring and a resistance rod. The downward pressure of the hydraulic rod is combined with the resistance of the resistance rod so that the welding part of the welded part is compressed and protected during bending, ensuring that the forces on both sides during the stamping and bending process will not affect the welding part, ensuring the quality and yield of the product, and the pressure value of the welded part can be flexibly adjusted by rotating the screw rod, thereby improving the overall adaptability and practicality of the die during use;

[0022] The anti-cracking stamping die for welded parts is provided with a template assembly, which includes an upper template, a lower template, an electromagnet, a permanent magnet and a buffer pad. The lower template can be quickly reset after the welded part is stamped, so that the lower template can return to the top of the resistance rod to prepare for the next stamping. The buffer pad provides sufficient protection for the surface of the product, reduces the pressure on the weld, and further improves the quality of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is the overall front view of the utility model;

[0024] Figure 2 It is a schematic diagram of the internal structure of the utility model;

[0025] Figure 3 It is a top view of the mounting base of the utility model;

[0026] Figure 4 It is a schematic diagram of stamping and bending of a welded part of the utility model;

[0027] Figure 5 For the utility model Figure 2 A magnified schematic diagram at point A in FIG.

[0028] In the figure: 1. base; 2. hydraulic rod; 3. mounting seat; 4. template assembly; 401. upper template; 402. lower template; 403. electromagnet; 404. permanent magnet; 405. buffer pad; 5. anti-crack assembly; 501. screw rod; 502. lifting sleeve; 503. compression spring; 504. resistance rod; 6. hexagon socket hole; 7. pressure indicator rod; 8. pulley. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0031] In the description of this patent, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "setting" should be understood in a broad sense, for example, it can be fixed connection, setting, or detachable connection, setting, or integrated connection, setting. For ordinary technicians in this field, the specific meanings of the above terms in this patent can be understood according to specific circumstances.

[0032] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "several" is two or more, unless otherwise clearly and specifically defined. Example

[0033] See also Figure 1-5As shown, the utility model provides a technical solution for a crack-proof stamping die for welding parts: an anti-crack stamping die for welding parts, including a base 1 and a hydraulic rod 2, a mounting seat 3 is installed on the upper end surface of the base 1, a template component 4 is installed on the lower end of the hydraulic rod 2, the template component 4 is slidably connected with the mounting seat 3, and an anti-crack component 5 is installed on the inner wall of the mounting seat 3; the anti-crack component 5 includes a screw rod 501, a lifting sleeve 502 and a resistance rod 504, and the screw rod 501 is movably installed in the mounting cavity at the upper end of the mounting seat 3 Inside, the upper end of the screw rod 501 is rotatably connected to the positioning hole on the mounting seat 3, the lifting sleeve 502 is sleeved on the lower end of the screw rod 501 and is threadedly connected to the screw rod 501, the lower end of the lifting sleeve 502 is connected with a compression spring 503, the resistance rod 504 is rotatably installed in the mounting cavity at the upper end of the mounting seat 3 and is located below the screw rod 501, one end of the resistance rod 504 is connected to the lower end of the compression spring 503, and the other end of the resistance rod 504 passes through the mounting cavity at the upper end of the mounting seat 3 and is located below the template assembly 4. When the welded part needs to be stamped and bent, the weld of the welded part is first placed in the template assembly 4, and then the hydraulic rod 2 is started. The hydraulic rod 2 presses the template assembly 4 up and down. The welding part of the welded part is located inside the template assembly 4. Due to the support of the resistance rod 504 under the template assembly 4, although the template assembly 4 is subjected to the downward pressure of the hydraulic rod 2, it cannot move downward until the downward pressure of the hydraulic rod 2 increases to completely overcome the elastic force of the compression spring 503 to compress the compression spring 503. At this time, the resistance rod 504 begins to rotate counterclockwise into the mounting cavity at the upper end of the mounting seat 3, and the template assembly 4 can move downward to bend the edge of the welded part. The force generated on both sides of the welded part during the bending process will not affect the welding part. After the stamping is completed, the template assembly 4 is pulled out upward by the hydraulic rod 2 to reset the template assembly 4. If there are signs of cracking at the welding part of the product after bending, it may be that the resistance of the resistance rod 504 is insufficient. The screw rod 501 can be rotated by the hexagonal wrench to readjust the compression deformation of the compression spring 503. Through the anti-crack component 5, the downward pressure of the hydraulic rod 2 is combined with the resistance of the resistance rod 504 to ensure that the welding part of the welded part is compressed and protected during bending, ensuring that the forces on both sides during the stamping and bending process will not affect the welding part, thereby ensuring the quality and yield of the product, and the pressure value of the welded part can be flexibly adjusted by rotating the screw 401, thereby improving the overall adaptability and practicality of the mold during use.

[0034] The template assembly 4 includes an upper template 401, a lower template 402, an electromagnet 403 and a buffer pad 405. The upper template 401 is installed at the lower end of the hydraulic rod 2, and the lower template 402 is movably installed in the mounting seat 3 and is slidably connected to the inner wall of the mounting seat 3. The electromagnet 403 is installed in a cavity on the upper template 401, and a permanent magnet 404 matching the electromagnet 403 is installed inside the lower template 402. The buffer pad 405 is installed on the end face of the adjacent side of the upper template 401 and the lower template 402. The buffer pad 405 is symmetrically installed on the end faces of the upper template 401 and the lower template 402 and corresponds to each other up and down. When it is necessary to bend the welded part, first place the welded part on the upper end surface of the lower template 402, and the weld of the welded part is located between the buffer pads 405 on both sides, then start the hydraulic rod 2, the hydraulic rod 2 drives the upper template 401 to move downward until it fits with the upper end surface of the welded part, then the hydraulic rod 2 increases the downward pressure until the welded part and the lower template 402 overcome the resistance of the resistance rod 504 and are completely pressed into the mounting seat 3, at this time the stamping is completed, while driving the upper template 401 and the lower template 402 to reset, start the electromagnet 403, the attraction of the electromagnet 403 to the permanent magnet 404 makes the lower template 402 and the upper template 401 fit tightly, and makes the lower template 402 move upward along the mounting seat 3 until it moves above the resistance rod 504, at this time turn off the electromagnet 403, after losing the attraction, the lower template 402 falls under the action of gravity and is supported by the resistance rod 504, at this time the next welded part can be stamped and bent. Through the template assembly 4, the lower template 402 can be quickly reset after the weld is stamped, so that the lower template 402 can return to the top of the resistance rod 504 to prepare for the next stamping, and the buffer pad 405 provides sufficient protection for the surface of the product, reduces the pressure on the weld, and further improves the quality of the product.

[0035] The upper end of the screw rod 501 is provided with a hexagonal hole 6 , which can facilitate the rotation adjustment of the screw rod 501 by a hexagonal wrench.

[0036] A pressure indicating rod 7 is installed on the side wall of the lifting sleeve 502. One end of the pressure indicating rod 7 passes through the slide groove on the side wall of the mounting seat 3 and is located outside the mounting seat 3. The outside of the mounting seat 3 is located on one side of the slide groove and is engraved with a scale. By observing the position of the pressure indicating rod 7 relative to the scale, the resistance of the current resistance rod 504 can be determined.

[0037] One end of the resistance rod 504 away from the compression spring 503 is rotatably connected to the pulley 8, and the lower template 402 is always in contact with the pulley 8 during the up and down movement, which can effectively reduce friction.

[0038] The working principle of the utility model is as follows:

[0039] When the anti-cracking stamping die for a welded part of the present embodiment is in use, if it is necessary to stamp and bend the welded part, first place the welded part on the upper end surface of the lower template 402, and the weld seam of the welded part is located between the buffer pads 405 on both sides, then start the hydraulic rod 2, and the hydraulic rod 2 drives the upper template 401 and the lower template 402 to move downward until they are in contact with the upper end surface of the welded part. Due to the supporting effect of the resistance rod 504 under the template assembly 4, although the upper template 401 is subjected to the downward pressure of the hydraulic rod 2, it cannot move downward. Then the hydraulic rod 2 increases the downward pressure until the downward pressure of the hydraulic rod 2 increases to completely overcome the elastic force of the compression spring 503 and compress the compression spring 503. At this time, the resistance rod 504 begins to rotate counterclockwise into the mounting cavity at the upper end of the mounting seat 3, and the lower template 402 and the upper template 401 can move downward to cooperate with the inner wall of the mounting seat 3 to bend the edge of the welded part. The force generated on both sides of the welded part during the bending process will not affect the welding part. After the stamping is completed, the electromagnet 403 is started. The attraction of the electromagnet 403 to the permanent magnet 404 makes the lower template 402 and the upper template 401 fit tightly, and makes the lower template 402 move upward along the mounting seat 3 until it moves above the resistance rod 504. At this time, the electromagnet 403 is turned off. After losing the attraction, the lower template 402 falls under the action of gravity and is supported by the resistance rod 504. At this time, the next welded part can be stamped and bent. If there are signs of cracking at the welding part of the product after bending, it may be that the resistance of the resistance rod 504 is not enough. The screw rod 501 can be rotated with an Allen wrench to readjust the compression deformation of the compression spring 503. The utility model has a simple structure and a reasonable design. Through the anti-crack component 5, the downward pressure of the hydraulic rod 2 is combined with the resistance of the resistance rod 504 to ensure that the welding part of the welded part is compressed and protected during bending, ensuring that the forces on both sides during the stamping and bending process will not affect the welding part, thereby ensuring the quality and yield of the product, and the pressure value exerted on the welded part can be flexibly adjusted by rotating the screw rod 401, thereby improving the overall adaptability and practicality of the mold during use. At the same time, through the template component 4, the rapid reset of the lower template 402 is achieved after the stamping of the welded part is completed, so that the lower template 402 can return to the top of the resistance rod 504 to prepare for the next stamping, and the buffer pad 405 provides sufficient protection for the surface of the product, reduces the pressure exerted on the weld, and further improves the quality of the product.

[0040] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A crack-proof stamping die for a welded part, comprising a base (1) and a hydraulic rod (2), characterized in that: A mounting seat (3) is provided on the upper end surface of the base (1), a template assembly (4) is provided at the lower end of the hydraulic rod (2), the template assembly (4) is slidably connected to the mounting seat (3), and an anti-cracking assembly (5) is provided on the inner wall of the mounting seat (3); The anti-cracking component (5) comprises: A screw rod (501), the screw rod (501) being movably arranged in a mounting cavity at an upper end of a seat body of the mounting seat (3), and the upper end of the screw rod (501) being rotatably connected to a positioning hole on the mounting seat (3); A lifting sleeve (502), the lifting sleeve (502) being sleeved on the lower end of the screw rod (501) and being threadedly connected to the screw rod (501), and the lower end of the lifting sleeve (502) being connected to a compression spring (503); A resistance rod (504) is rotatably arranged in a mounting cavity at the upper end of a mounting seat (3) and is located below the screw rod (501); one end of the resistance rod (504) is connected to the lower end of the compression spring (503); and the other end of the resistance rod (504) passes through the mounting cavity at the upper end of the mounting seat (3) and is located below the template assembly (4).

2. The anti-cracking stamping die for welded parts according to claim 1, characterized in that: The template component (4) comprises: An upper template (401), wherein the upper template (401) is arranged at the lower end of the hydraulic rod (2); A lower template (402), the lower template (402) being movably disposed in the mounting seat (3) and slidably connected to the inner wall of the mounting seat (3); An electromagnet (403), wherein the electromagnet (403) is disposed in a cavity on the upper template (401), and a permanent magnet (404) matching the electromagnet (403) is disposed inside the lower template (402); A buffer pad (405) is provided on an end surface of an adjacent side of the upper template (401) and the lower template (402).

3. The anti-cracking stamping die for welded parts according to claim 1, characterized in that: The upper end of the screw rod (501) is provided with a hexagonal hole (6).

4. The anti-cracking stamping die for welded parts according to claim 1, characterized in that: A pressure indicating rod (7) is provided on the side wall of the lifting sleeve (502), and one end of the pressure indicating rod (7) passes through a sliding groove on the side wall of the mounting seat (3) and is located outside the mounting seat (3).

5. The anti-cracking stamping die for welding parts according to claim 2, characterized in that: A pulley (8) for reducing friction with the lower template (402) is provided at one end of the resistance rod (504) away from the compression spring (503).

6. The anti-cracking stamping die for welded parts according to claim 2, characterized in that: The buffer pads (405) are symmetrically arranged on the end surfaces of the upper template (401) and the lower template (402) and correspond to each other up and down.

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