Stamping device for stable press-in of workpiece pin

Abstract

The utility model discloses a kind of workpiece dowel stable press-in stamping equipment, it is related to stamping technical field, including machine table, die holder, template, pressing plate and stamping power component are set on machine table, positioning block corresponding with product clamping groove is set on template, stamping power component can drive pressing plate to template and carry out stamping action;Template can be displaced on die holder upper end, and elastic element is set between template and die holder;Through dowel perforation is set on template, and top block is set on die holder, wherein, movable gap between top block and template bottom wall, after passing through dowel perforation, dowel is resisted to the top surface of top block, in the whole stamping process, dowel is always stable in the inside of template dowel perforation, so improve the stability of dowel when stamping, ensure that dowel can not appear jitter, inclination and displacement, protect dowel simultaneously, alleviate its pressure, avoid deformation, to improve the product quality of stamping.

Description

Technical Field

[0001] This utility model relates to the field of stamping technology, and in particular to a stamping device for stably pressing in workpiece pins. Background Technology

[0002] As attached Figure 8 The hardware shown is a structural component that requires pin assembly. Its body has a groove formed by bending and a pin hole. Pins need to be pressed into the hole to achieve final assembly or function. The pressing length of the pin also needs to be controlled. Therefore, the pressing of the pin is a key post-assembly process in its production process.

[0003] For the press-fitting of pins, current technology typically uses stamping equipment. However, current stamping equipment lacks sufficient control over the stability of the pins during the stamping process, resulting in slight vibration, tilting, or displacement of the pins when they are pressed into the product. This makes it difficult to control the coaxiality of the pin and the hole during the pressing process, making the pressed-fit pins prone to loosening. Furthermore, because the pins are not well protected and controlled during stamping, they are subjected to greater pressure, which can easily cause the pins to deform.

[0004] Therefore, it is necessary to propose a new technical solution to address the above problems. Utility Model Content

[0005] To overcome the shortcomings mentioned above, this utility model aims to provide a technical solution that can solve the aforementioned problems.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a stamping device for stably pressing in workpiece pins, comprising a machine base, wherein the machine base is provided with a die holder, a template, a pressure plate and a stamping power assembly, wherein the template is provided with a positioning block corresponding to the product clamping groove, and the stamping power assembly can drive the pressure plate to perform a stamping action on the template; The template is installed on the upper end of the mold base and can be moved up and down, and an elastic element is provided between the template and the mold base; The template has a through pin hole, and the mold base is provided with a top block. There is a movable gap between the top block and the bottom wall of the template. After the pin passes through the pin hole, it abuts against the top surface of the top block.

[0007] As a further embodiment of this utility model: the lower side of the template is provided with a corresponding movable groove for the top block, the top block is fitted into the movable groove, and the pin hole is connected to the movable groove; The movable gap is formed between the top block and the top wall of the movable groove.

[0008] As a further embodiment of this utility model: the upper end face of the top block is provided with a slot that is coaxially aligned with the pin hole.

[0009] As a further embodiment of this utility model, the upper opening edges of the pin hole and the slot are both chamfered.

[0010] As a further embodiment of this utility model: the template is also provided with a clamping block corresponding to the edge of the product, and the clamping block is located at the edge of the pin hole of the product.

[0011] As a further embodiment of this utility model: the upper end face of the mold base is provided with a lower groove, the elastic element is disposed in the lower groove, the lower end face of the template is provided with an upper groove, and the upper end of the elastic element is embedded in the upper groove.

[0012] As a further embodiment of this utility model: side plates are provided on both sides of the template, the side plates extend downward to the side of the mold base, and guide grooves are provided on the side plates; The mold base has a fixing groove on its side that corresponds to the guide groove. A guide block is fixed in the fixing groove by bolts. The outer end of the guide block extends into the guide groove and guides it.

[0013] As a further embodiment of this utility model: an upper mold base is provided on the machine base, the pressure plate is fixedly installed on the lower side of the upper mold base, a fixing plate is provided on the upper end of the upper mold base, the stamping power assembly is installed on the upper end of the fixing plate, and four guide rods are provided on the machine base, the upper ends of the four guide rods are fixedly connected to the fixing plate, and the four corners of the upper mold base are guided and cooperated with the guide rods. The stamping power assembly includes a hydraulic cylinder mounted on a fixed plate. A hydraulic telescopic rod is provided at the lower end of the hydraulic cylinder. The hydraulic telescopic rod passes through the fixed plate and is fixedly connected to the upper die base.

[0014] Compared with the prior art, the beneficial effects of this technical solution are as follows: In the preparation stage, the worker first inserts the pin into the pin hole on the template, so that the bottom end of the pin abuts against the top surface of the top block, and the top end is flush with or slightly lower than the template surface. Then, the workpiece is positioned by inserting the positioning block, so that the pin hole of the workpiece is aligned with the pin hole. After starting the stamping power assembly, the pressure plate presses down and impacts the template, causing the template to move up and down on the mold base. Since there is a reserved movable gap between the top block and the template, when the template and the workpiece are pressed down, the top block holds the pin in place, and then the workpiece is subjected to the stamping action, pressing part of the pin into its own pin hole. Throughout the stamping process, the pin remains stable inside the pin hole of the die, thus improving the stability of the pin during stamping and ensuring that the pin does not shake, tilt, or shift. At the same time, the pin is protected, its pressure is reduced, and deformation is prevented, thereby improving the stamping and product quality.

[0015] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the planar structure of this utility model; Figure 3 This is a top view of the mold base and template of this utility model; Figure 4 yes Figure 3 A cross-sectional view along the AA direction; Figure 5 This is a schematic diagram of the structure of the mold base of this utility model; Figure 6 This is a structural schematic diagram of the template of this utility model; Figure 7 yes Figure 4 Enlarged schematic diagram of a local structure at point A; Figure 8 This is a structural schematic diagram of the product corresponding to this utility model; The corresponding labels in the attached diagram are explained as follows: 1. Machine base; 11. Guide rod; 2. Mold base; 21. Top block; 22. Slot; 23. Lower slot; 24. Fixed slot; 25. Guide block; 3. Template; 31. Positioning block; 32. Pin hole; 33. Movable slot; 34. Clamping block; 35. Upper slot; 36. Side plate; 37. Guide slot; 4. Pressure plate; 5. Stamping power assembly; 51. Hydraulic cylinder; 52. Hydraulic telescopic rod; 6. Elastic element; 7. Movement clearance; 8. Upper mold base; 81. Fixed plate. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figure 1-8 A stamping device for stably pressing in workpiece pins includes a machine base 1, on which a mold base 2, a template 3, a pressure plate 4 and a stamping power assembly 5 are provided. The template 3 is provided with a positioning block 31 corresponding to the product clamping groove. The stamping power assembly 5 can drive the pressure plate 4 to perform a stamping action on the template 3. Template 3 is installed on the upper end of mold base 2 and can be moved up and down, and an elastic element 6 is provided between template 3 and mold base 2; The template 3 has a through pin hole 32, and the mold base 2 has a top block 21. There is a movable gap 7 between the top block 21 and the bottom wall of the template 3. The pin abuts against the top surface of the top block 21 after passing through the pin hole 32.

[0020] Specifically, during the preparation stage, the worker first inserts the pin into the pin hole 32 on the template 3, so that the bottom end of the pin abuts against the top surface of the top block 21, and the top end is flush with or slightly lower than the surface of the template 3. Then, the workpiece is positioned by aligning the workpiece clamping groove with the positioning block 31 and inserting it. At this time, the workpiece pin hole is aligned with the pin hole 32. After starting the stamping power assembly 5, the pressure plate 4 presses down and impacts the template 3, causing the template 3 to move up and down on the mold base 2. Since there is a reserved movable gap 7 between the top block 21 and the template 3, when the template 3 and the workpiece are pressed down, the top block 21 holds the pin in place. Then, the workpiece is subjected to the stamping action, and part of the pin is pressed into its own pin hole. After the stamping is completed, the stamping power assembly 5 drives the pressure plate 4 to reset, and the elastic element 6 pushes the template 3 to move up and reset, so that the processed workpiece can be taken off from the template 3. Throughout the stamping process, the pin remains stable inside the pin hole 32 of the template 3, thus improving the stability of the pin during stamping, ensuring that the pin will not shake, tilt, or shift, while also protecting the pin, reducing its pressure, and preventing deformation, thereby improving the stamping and product quality.

[0021] Based on the above embodiment, the lower side of the template 3 is provided with a corresponding movable groove 33 for the top block 21, the top block 21 is fitted into the movable groove 33, and the pin through hole 32 is connected to the movable groove 33. The movable gap 7 is formed between the top block 21 and the top wall of the movable groove 33.

[0022] Specifically, during the stamping process, when the template 3 is pressed down, the movable groove 33 moves relative to the top block 21, and the movable gap 7 gradually shrinks. This structure can ensure that the template 3 and the top block 21 maintain vertical relative movement, while reserving the movable gap 7 to provide space for the template 3 to be pressed down.

[0023] Based on the above embodiments, it is further proposed that the upper end face of the top block 21 is provided with a slot 22 that is coaxially aligned with the pin through hole 32.

[0024] Specifically, after the pin is inserted into the pin hole 32, its bottom end will be inserted into the slot 22 on the top block 21, thereby providing positioning and support for the bottom of the pin, enhancing the vertical stability of the pin during the stamping process, preventing the pin from undergoing horizontal displacement and tilting, ensuring that the stamping force is accurately transmitted along the axial direction, reducing wear and deformation of the pin during the stamping process, and further improving the assembly quality.

[0025] Preferably, the upper opening edges of both the pin hole 32 and the slot 22 are chamfered.

[0026] Specifically, guide slopes are formed at the openings of the pin hole 32 and the slot 22 to guide the insertion of the pin, allowing the pin to be inserted more smoothly and improving assembly efficiency.

[0027] Based on the above embodiments, it is further proposed that the template 3 is also provided with a clamping block 34 corresponding to the edge of the product, and the clamping block 34 is located at the edge of the pin hole of the product.

[0028] Specifically, the clamping block 34 can limit the workpiece from the side to prevent the workpiece from shifting or warping due to force during stamping, and ensure that the pin hole on the workpiece is precisely aligned with the pin through hole 32 on the template 3.

[0029] Based on the above embodiments, it is further proposed that the upper end face of the mold base 2 has a lower groove 23, the elastic element 6 is disposed in the lower groove 23, and the lower end face of the template 3 has an upper groove 35, the upper end of the elastic element 6 is embedded in the upper groove 35. Specifically, the lower slot 23 and the upper slot 35 form an installation space to accommodate and position the elastic element 6, preventing the elastic element from tilting during compression and rebound, ensuring that the rebound force on the template is uniform and vertical, and making the vertical displacement of the template 3 more stable.

[0030] Based on the above embodiments, it is further proposed that side plates 36 are provided on both sides of the template 3, the side plates 36 extend downward to the side of the mold base 2, and the side plates 36 are provided with guide grooves 37. The mold base 2 has a fixing groove 24 on its side that corresponds to the guide groove 37. A guide block 25 is fixed in the fixing groove 24 by bolts. The outer end of the guide block 25 extends into the guide groove 37 and cooperates with it for guidance.

[0031] Specifically, by setting downward extending side plates 36 on both sides of the template 3, and allowing the guide grooves 37 on the side plates 36 to guide and cooperate with the guide blocks 25 on the side of the mold base 2, precise vertical guidance is provided for the up and down movement of the template 3, and at the same time, the guide blocks 25 are used to limit the position of the template 3 to prevent the template 3 from detaching from the mold base 2. During assembly, the template 3 is first placed on the upper end of the mold base 2, the top block 21 is embedded in the movable groove 33, and the elastic element 6 is embedded in the upper groove 35. Then, the guide block 25 is inserted into the fixed groove 24 after passing through the guide groove 37. Subsequently, the guide block 25 is fixed to the mold base 2 with bolts to complete the assembly. When disassembling, the bolts on the guide block 25 are unscrewed, and the guide block 25 is removed to remove the template 3 from the mold base 2, which is convenient for replacing the corresponding template 3 for different workpieces.

[0032] Preferably, the machine base 1 is provided with an upper die holder 8, the pressure plate 4 is fixedly installed on the lower side of the upper die holder 8, the upper end of the upper die holder 8 is provided with a fixing plate 81, the stamping power assembly 5 is installed on the upper end of the fixing plate 81, and the machine base 1 is provided with four guide rods 11. The upper ends of the four guide rods 11 are fixedly connected to the fixing plate 81, and the four corners of the upper die holder 8 are guided and cooperated with the guide rods 11. The guide rods 11 provide stable support for the fixing plate 81 and provide precise guidance for the vertical displacement of the upper die holder 8. The stamping power assembly 5 includes a hydraulic cylinder 51 mounted on a fixed plate 81. A hydraulic telescopic rod 52 is provided at the lower end of the hydraulic cylinder 51. The hydraulic telescopic rod 52 passes through the fixed plate 81 and is fixedly connected to the upper mold base 8. When the hydraulic cylinder 51 drives the hydraulic telescopic rod 52 to move, the power is transmitted to the pressure plate 4 through the upper mold base 8, causing the pressure plate 4 to press down the template 3.

[0033] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A stamping device for stably pressing in workpiece pins, characterized in that, The machine includes a machine base (1), on which a mold base (2), a template (3), a pressure plate (4) and a stamping power assembly (5) are provided. The template (3) is provided with a positioning block (31) corresponding to the product clamping groove. The stamping power assembly (5) can drive the pressure plate (4) to perform a stamping action on the template (3). The template (3) is installed on the upper end of the mold base (2) and can be moved up and down. An elastic element (6) is provided between the template (3) and the mold base (2). The template (3) has a through pin hole (32), and the mold base (2) has a top block (21). The top block (21) and the bottom wall of the template (3) have a movable gap (7). After the pin passes through the pin hole (32), it abuts against the top surface of the top block (21).

2. The stamping equipment for stably pressing in workpiece pins according to claim 1, characterized in that, The template (3) has a corresponding movable groove (33) on its lower side, the top block (21) is fitted into the movable groove (33), and the pin hole (32) is connected to the movable groove (33); The movable gap (7) is formed between the top block (21) and the top wall of the movable groove (33).

3. The stamping equipment for stably pressing in workpiece pins according to claim 2, characterized in that, The top block (21) has a slot (22) on its upper surface that is coaxially aligned with the pin hole (32).

4. The stamping equipment for stably pressing in workpiece pins according to claim 3, characterized in that, The upper opening edges of the pin hole (32) and the slot (22) are all chamfered.

5. The stamping equipment for stably pressing in workpiece pins according to any one of claims 1-4, characterized in that, The template (3) is also provided with a clamping block (34) corresponding to the edge of the product, and the clamping block (34) is located at the edge of the pin hole of the product.

6. The stamping equipment for stably pressing in workpiece pins according to claim 5, characterized in that, The upper end face of the mold base (2) is provided with a lower groove (23), the elastic element (6) is provided in the lower groove (23), the lower end face of the template (3) is provided with an upper groove (35), and the upper end of the elastic element (6) is embedded in the upper groove (35).

7. The stamping equipment for stably pressing in workpiece pins according to claim 6, characterized in that, The template (3) is provided with side plates (36) on both sides. The side plates (36) extend downward to the side of the mold base (2), and the side plates (36) are provided with guide grooves (37). The mold base (2) has a fixing groove (24) on its side that corresponds to the guide groove (37). A guide block (25) is fixed in the fixing groove (24) by bolts. The outer end of the guide block (25) extends into the guide groove (37) and guides it.

8. The stamping equipment for stably pressing in workpiece pins according to claim 1, characterized in that, The machine base (1) is provided with an upper mold base (8), the pressure plate (4) is fixedly installed on the lower side of the upper mold base (8), the upper end of the upper mold base (8) is provided with a fixing plate (81), the stamping power assembly (5) is installed on the upper end of the fixing plate (81), and the machine base (1) is provided with four guide rods (11), the upper ends of the four guide rods (11) are fixedly connected to the fixing plate (81), and the four corners of the upper mold base (8) are guided and cooperated with the guide rods (11); The stamping power assembly (5) includes a hydraulic cylinder (51) mounted on a fixed plate (81). The lower end of the hydraulic cylinder (51) is provided with a hydraulic telescopic rod (52). The hydraulic telescopic rod (52) passes through the fixed plate (81) and is fixedly connected to the upper die base (8).

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