A positioning structure for a rivet stamping equipment

Abstract

This utility model discloses a positioning structure for a rivet stamping equipment in the field of rivet stamping technology. It includes a support frame, with a stamping sheet metal placed at the bottom of the support frame. A stamping positioning component is also provided inside the support frame, including a rivet stamping seat. The rivet stamping seat is installed on the top of the support frame, and a rivet positioning seat is provided at the bottom of the support frame. This solution utilizes rivet placement holes opened on the top of the stamping base plate and the rivet positioning seat to stably place the fixed rivet to be stamped directly above the stamping sheet metal. When the hydraulic stamping machine is running, the rivet stamping seat can drive the rivet stamping rod downwards. During the stamping process, the fixed rivet can descend vertically along the guide mating path and be quickly stamped and fixed inside the stamping sheet metal. This process not only ensures the vertical shape of the rivet but also avoids the bending problem that occurs in traditional stamping due to the rivet being pre-placed in a pre-drilled hole.

Description

Technical Field

[0001] This utility model relates to the field of rivet stamping technology, and in particular to a positioning structure for rivet stamping equipment. Background Technology

[0002] Rivet stamping equipment is a type of machinery specifically designed for riveting connections, primarily used for stamping rivets onto sheet metal or other materials. This equipment applies axial pressure to the rivet, deforming it and securely connecting two or more components. It is widely used in automotive manufacturing, aerospace, home appliances, and electronic assembly. The equipment typically consists of a stamping head, worktable, transmission system, and control system, and features high efficiency, accurate positioning, and reliable connections. Modern rivet stamping equipment usually incorporates automated control functions, enabling continuous production and intelligent monitoring, significantly improving production efficiency and product quality.

[0003] In modern industrial production, rivet stamping technology, due to its efficient and reliable assembly characteristics, has been widely used in fields such as machinery manufacturing, electronic assembly, and automobile assembly, playing a crucial role in improving product assembly speed and structural quality. Currently, existing rivet stamping equipment typically places rivets pre-placed in pre-drilled holes in sheet metal parts, relying on the hole walls for coarse constraint. During the stamping process, the force exerted by the rivet stamping rod often causes the rivet, which lacks sufficient lateral support, to tilt or bend, resulting in poor stamping formation, reduced connection strength, and even rework and scrap. Furthermore, a slight mismatch between the pre-drilled hole size and the rivet diameter further reduces positioning accuracy, hindering the equipment's versatility and production efficiency.

[0004] Therefore, there is an urgent need for a new structure capable of stable and precise positioning between sheet metal parts and rivets of various specifications, to ensure the vertical insertion and flat end face of the rivets during the stamping process, thereby significantly improving assembly quality and automation level. Based on this, we propose a positioning structure for rivet stamping equipment. Utility Model Content

[0005] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of the present invention, to avoid obscuring the purpose of these documents, and such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0006] Therefore, the purpose of this utility model is to provide a positioning structure for rivet stamping equipment, which can solve the problems of existing rivet stamping equipment, which suffer from tilting and bending due to insufficient lateral support during the stamping process because the rivets are pre-placed in the reserved holes of the sheet metal parts, resulting in poor stamping formation, reduced connection strength, and low positioning accuracy due to the mismatch between the reserved holes and the rivets.

[0007] To solve the above technical problems, this utility model provides a positioning structure for a rivet stamping equipment, which adopts the following technical solution: it includes a support frame, a stamping sheet metal is placed at the bottom of the support frame, and a stamping positioning component is also provided inside the support frame. The stamping positioning component includes a rivet stamping seat, the rivet stamping seat is installed on the top of the support frame, and a rivet positioning seat is provided at the bottom of the support frame.

[0008] A hydraulic stamping machine is installed on the top of the support frame, and a stamping base plate is connected to the bottom of the support frame. Fixed connecting seats are installed at both ends of the top of the stamping base plate. Guide slide rods are connected to the top of the two sets of fixed connecting seats. Adjusting connecting seats are connected to the top of the two sets of guide slide rods. Compression springs are sleeved and connected in the middle of the two sets of guide slide rods. Sheet metal positioning grooves are also provided at the bottom of the support frame.

[0009] Both the fixed connecting seat and the adjusting connecting seat have two sets of embedded slots on their inner sides. The side of the adjusting connecting seat away from the embedded slots is also connected to a guide sleeve. The guide sleeve is matched with the guide slide rod structure, and the guide sleeve and the guide slide rod are in sliding fit.

[0010] Optionally, both sides of the rivet stamping seat and the rivet positioning seat are connected to two sets of embedded card plates. The embedded card plates are matched with the embedded card slot structure, and the embedded card plates and the embedded card slots are engaged. The bottom of the rivet stamping seat is also connected to two sets of rivet stamping rods.

[0011] Optionally, the top of both the stamping base plate and the rivet positioning seat is provided with two sets of rivet placement holes. The rivet placement holes are matched with the rivet stamping rod structure. The rivet placement holes and the rivet stamping rod are in a transition fit. Fixed rivets are also placed inside the rivet placement holes.

[0012] Optionally, threaded sleeves are installed on both sides of the inner wall of the sheet metal positioning groove, and positioning sliding holes are opened through both sides of the sheet metal positioning groove near the threaded sleeves.

[0013] Optionally, positioning clamps are installed on both sides of the inner side of the sheet metal positioning groove. An adjusting screw is connected to the middle of one side of each of the two sets of positioning clamps via a bearing. The adjusting screw matches the threaded sleeve structure, and the adjusting screw and the threaded sleeve are threadedly engaged.

[0014] Optionally, positioning rods are connected to both sides of the two sets of positioning clamps near the adjusting screw. The positioning rods are matched with the positioning sliding hole structure, and the positioning rods and positioning sliding holes are in a sliding fit.

[0015] In summary, this utility model has at least one of the following beneficial effects:

[0016] 1. The rivet stamping positioning structure designed in this scheme achieves stable clamping of the stamped sheet metal by using a sheet metal positioning groove set at the bottom of the support frame and positioning clamps installed on both sides inside. It utilizes the ingenious cooperation between the threaded sleeve, positioning sliding hole, adjusting screw and positioning rod. When the adjusting screw rotates clockwise or counterclockwise, the distance between the two sets of positioning clamps can be precisely adjusted by the threaded and sliding cooperation, thereby adapting to the positioning requirements of sheet metal parts of different specifications. This design can effectively prevent the stamped sheet metal from shaking or shifting during the fixed rivet stamping process, ensuring the accuracy of rivet stamping, improving the assembly quality of the product, reducing the scrap rate caused by sheet metal part displacement, and providing reliable assembly guarantee for industrial production.

[0017] 2. The rivet stamping positioning structure designed in this scheme, through rivet placement holes opened on the top of the stamping base plate and the rivet positioning seat respectively, can stably place the fixed rivet to be stamped directly above the stamped sheet metal. When the hydraulic stamping machine is running, the rivet stamping seat can drive the rivet stamping rod to stamp downward. The precise structural matching between the rivet stamping rod and the rivet placement hole allows the fixed rivet to descend vertically along the guide mating path during the stamping process and be quickly stamped and fixed inside the stamped sheet metal. This process not only ensures the vertical shape of the rivet and avoids the bending problem that occurs in traditional stamping due to the rivet being pre-placed in the reserved hole, but also significantly improves the forming quality and connection strength of the rivet stamping, reduces rework and scrap, and improves production efficiency. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments 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.

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

[0020] Figure 2 This is a schematic diagram of the support frame structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the embedded card plate structure of this utility model;

[0022] Figure 4 This is a schematic diagram of the embedded card plate structure of this utility model;

[0023] Figure 5 This is a schematic diagram of the sheet metal positioning groove structure of this utility model;

[0024] Figure 6 This is a schematic diagram of the positioning clamp structure of this utility model.

[0025] Explanation of reference numerals in the attached drawings: 1. Support frame; 2. Stamped sheet metal; 3. Stamping positioning assembly; 4. Rivet stamping seat; 5. Rivet positioning seat; 6. Hydraulic stamping press; 7. Stamping base plate; 8. Fixed connecting seat; 9. Guide slide rod; 10. Adjusting connecting seat; 11. Compression spring; 12. Sheet metal positioning groove; 13. Embedded slot; 14. Guide sleeve; 15. Embedded clamping plate; 16. Rivet stamping rod; 17. Rivet placement hole; 18. Fixed rivet; 19. Threaded sleeve; 20. Positioning slide hole; 21. Positioning clamping plate; 22. Adjusting screw; 23. Positioning rod. Detailed Implementation

[0026] 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.

[0027] Example: Refer to Figures 1 to 6This utility model provides an embodiment of a positioning structure for a rivet stamping device, including a support frame 1. A stamping sheet metal 2 is placed at the bottom of the support frame 1. A stamping positioning assembly 3 is also provided inside the support frame 1. The stamping positioning assembly 3 includes a rivet stamping seat 4, which is installed at the top of the support frame 1. A rivet positioning seat 5 is provided at the bottom of the support frame 1. A hydraulic stamping machine 6 is installed at the top of the support frame 1. A stamping base plate 7 is connected to the bottom of the support frame 1. Fixed connecting seats 8 are installed at both ends of the top of the stamping base plate 7. Guide slide rods 9 are connected to the top of each of the two sets of fixed connecting seats 8. Adjustable connecting seats 10 are connected to the top of each of the two sets of guide slide rods 9. Compression springs 11 are sleeved and connected to the middle of each of the two sets of guide slide rods 9. A sheet metal positioning groove 12 is also provided at the bottom of the support frame 1. Two sets of embedded slots 13 are provided on the inner sides of both the fixed connecting seats 8 and the adjustable connecting seats 10. A guide sleeve 14 is also connected to the side of the seat 10 away from the embedded slot 13. The guide sleeve 14 is structurally matched with the guide slide rod 9, and the guide sleeve 14 and the guide slide rod 9 are in sliding fit. This rivet stamping positioning structure, through the cooperation between the support frame 1 and the stamping positioning component 3, can prevent the rivet stamping seat 4 from shifting or shaking when stamping the fixed rivet 18. It can ensure that the fixed rivet 18, which is stamped into the stamped sheet metal 2, is in a vertical shape. It can effectively avoid the problem of stamping bending of the traditional fixed rivet 18 due to pre-arrangement in the reserved hole. Through the cooperation between the sheet metal positioning groove 12 and the positioning clamp 21, the two sides of the stamped sheet metal 2 to be stamped and fixed can be limited, which can prevent the stamped sheet metal 2 from shaking or shifting during the stamping of the fixed rivet 18, thereby ensuring the accuracy of the fixed rivet 18 being stamped into the stamped sheet metal 2.

[0028] Both sides of the rivet stamping seat 4 and the rivet positioning seat 5 are connected to two sets of embedded clamping plates 15. The embedded clamping plates 15 and the embedded clamping grooves 13 are structurally matched and are engaged in a snap-fit ​​relationship. The bottom of the rivet stamping seat 4 is also connected to two sets of rivet stamping rods 16. Through the snap-fit ​​structure between the embedded clamping plates 15 and the embedded clamping grooves 13, the rivet stamping seat 4 and the rivet positioning seat 5 can be snapped and fixed between the two sets of adjusting connecting seats 10 and the two sets of fixed connecting seats 8, respectively. This equipment can also adjust the rivet stamping seat 4 according to the usage conditions. The rivet positioning seat 5 is disassembled, connected, repaired, and replaced. Both the stamping base plate 7 and the top of the rivet positioning seat 5 are provided with two sets of rivet placement holes 17. The rivet placement holes 17 and the rivet stamping rod 16 are structurally matched. The rivet placement holes 17 and the rivet stamping rod 16 are in a transition fit. The rivet placement holes 17 also contain fixed rivets 18. Through the transition fit structure between the rivet placement holes 17 and the rivet stamping rod 16, the rivet stamping rod 16 can perform downward stamping on the fixed rivets 18 that are limited and placed in the rivet placement holes 17.

[0029] Threaded sleeves 19 are installed on both sides of the inner wall of the sheet metal positioning groove 12. Positioning sliding holes 20 are provided through the sheet metal positioning groove 12 on both sides near the threaded sleeves 19. The threaded sleeves 19 and positioning sliding holes 20 on both sides of the inner wall of the sheet metal positioning groove 12 are used for limiting connection and guiding adjustment of the positioning clamp 21. Positioning clamps 21 are installed on both sides of the inner wall of the sheet metal positioning groove 12. An adjusting screw 22 is connected to the middle of one side of each of the two sets of positioning clamps 21 via a bearing. The adjusting screw 22 is structurally matched with the threaded sleeve 19, and the adjusting screw 22 and the threaded sleeve 19 are threadedly engaged. Through the structural design of the threaded engagement between the adjusting screw 22 and the threaded sleeve 19, when clockwise... When the adjusting screw 22 is rotated clockwise or counterclockwise, the clamping distance of the two sets of positioning clamps 21 installed on both sides inside the sheet metal positioning groove 12 can be adjusted. This can limit the two sides of the stamped sheet metal 2 to be stamped and fixed. The two sets of positioning clamps 21 are connected to positioning rods 23 on both sides near the adjusting screw 22. The positioning rods 23 are structurally matched with the positioning sliding holes 20. The positioning rods 23 and the positioning sliding holes 20 are in sliding fit. Through the structural design of the sliding fit between the positioning rods 23 and the positioning sliding holes 20, the two sets of positioning clamps 21 can be guided and limited on both sides of the spacing adjustment, which can prevent the positioning clamps 21 from rotating during the spacing adjustment process.

[0030] Working principle: The rivet stamping positioning structure designed in this scheme is mainly composed of a support frame 1 and a stamping positioning component 3. The stamping positioning component 3 includes a rivet stamping seat 4 and a rivet positioning seat 5. The rivet stamping seat 4 is used in cooperation with the guide slide rod 9, the adjusting connecting seat 10, and the compression spring 11. The embedded card plate 15 and the embedded card groove 13 are in a snap-fit ​​fit, and the guide sleeve 14 and the guide slide rod 9 are in a sliding fit. This can guide and limit the two ends of the rivet stamping seat 4, which is connected to the output end of the hydraulic stamping machine 6, and provide elastic buffering. This can prevent the rivet stamping seat 4 from deviating or shaking when stamping the fixed rivet 18, and can effectively improve the stability of the stamping process of the fixed rivet 18 by the rivet stamping seat 4.

[0031] The rivet stamping positioning structure designed in this scheme, through the rivet placement holes 17 opened on the top of the stamping base plate 7 and the rivet positioning seat 5 respectively, can limit the fixed rivet 18 to be stamped and place it directly above the stamping sheet metal 2. When the hydraulic stamping machine 6 is running normally, it can drive the rivet stamping seat 4 connected to the output end to stamp downward inside the support frame 1. Because the rivet placement hole 17 and the rivet stamping rod 16 are structurally matched, the rivet stamping rod 16 installed at the bottom of the rivet stamping seat 4 can perform downward stamping processing on the fixed rivet 18 limited and placed in the rivet placement hole 17. The downwardly stamped fixed rivet 18 can be quickly stamped and fixed inside the stamping sheet metal 2 through the guide cooperation between the rivet stamping rod 16 and the rivet placement hole 17. At the same time, it can also ensure that the fixed rivet 18 stamped into the stamping sheet metal 2 is in a vertical shape, which can effectively avoid the problem of stamping bending that occurs when the traditional fixed rivet 18 is arranged in the reserved hole in advance.

[0032] The rivet stamping positioning structure designed in this scheme uses a sheet metal positioning groove 12 opened at the bottom of the support frame 1, and positioning clamps 21 installed on both sides inside the sheet metal positioning groove 12. The positioning clamps 21 and the sheet metal positioning groove 12 are used in cooperation through the threaded sleeve 19, the positioning sliding hole 20, the adjusting screw 22, and the positioning rod 23. When the adjusting screw 22 is rotated clockwise or counterclockwise, the clamping distance of the two sets of positioning clamps 21 installed on both sides inside the sheet metal positioning groove 12 can be adjusted because the adjusting screw 22 and the threaded sleeve 19 are threadedly engaged, and the positioning rod 23 and the positioning sliding hole 20 are slidingly engaged. This can limit the two sides of the stamped sheet metal 2 to be stamped and fixed, and prevent the stamped sheet metal 2 from shaking or shifting during the stamping of the fixed rivet 18, thereby ensuring the accuracy of the fixed rivet 18 being stamped into the stamped sheet metal 2.

[0033] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present 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 the present utility model should be included within the protection scope of the present utility model.

Claims

1. A positioning structure for a rivet stamping device, comprising a support frame (1), characterized in that: The bottom of the support frame (1) is provided with a stamped sheet metal (2), and the inside of the support frame (1) is also provided with a stamping positioning component (3). The stamping positioning component (3) includes a rivet stamping seat (4). The rivet stamping seat (4) is installed on the top of the support frame (1), and the bottom of the support frame (1) is provided with a rivet positioning seat (5). The top of the support frame (1) is equipped with a hydraulic press (6), the bottom of the support frame (1) is connected to a stamping base plate (7), both ends of the top of the stamping base plate (7) are equipped with fixed connecting seats (8), the top of the two sets of fixed connecting seats (8) are connected with guide slide rods (9), the top of the two sets of guide slide rods (9) are connected with adjusting connecting seats (10), the middle of the two sets of guide slide rods (9) is sleeved with compression springs (11), and the bottom of the support frame (1) is also provided with sheet metal positioning grooves (12). The inner sides of both the fixed connecting seat (8) and the adjusting connecting seat (10) are provided with two sets of embedded slots (13). The side of the adjusting connecting seat (10) away from the embedded slots (13) is also connected to a guide sleeve (14). The guide sleeve (14) is structurally matched with the guide slide rod (9), and the guide sleeve (14) and the guide slide rod (9) are in sliding fit.

2. The positioning structure for a rivet stamping equipment according to claim 1, characterized in that: Two sets of embedded card plates (15) are connected to both sides of the rivet stamping seat (4) and the rivet positioning seat (5). The embedded card plates (15) and the embedded card slots (13) are structurally matched. The embedded card plates (15) and the embedded card slots (13) are in a snap-fit ​​fit. Two sets of rivet stamping rods (16) are also connected to the bottom of the rivet stamping seat (4).

3. The positioning structure for a rivet stamping equipment according to claim 2, characterized in that: The top of both the stamping base plate (7) and the rivet positioning seat (5) are provided with two sets of rivet placement holes (17). The rivet placement holes (17) are matched with the structure of the rivet stamping rod (16). The rivet placement holes (17) and the rivet stamping rod (16) are in transition fit. The rivet placement holes (17) are also filled with fixed rivets (18).

4. The positioning structure for a rivet stamping equipment according to claim 3, characterized in that: Threaded sleeves (19) are installed on both sides of the inner wall of the sheet metal positioning groove (12), and positioning sliding holes (20) are opened through both sides of the sheet metal positioning groove (12) near the threaded sleeves (19).

5. The positioning structure for a rivet stamping equipment according to claim 4, characterized in that: Positioning clamps (21) are installed on both sides of the inner side of the sheet metal positioning groove (12). An adjusting screw (22) is connected to one side of the middle of each of the two sets of positioning clamps (21) via a bearing. The adjusting screw (22) is structurally matched with the threaded sleeve (19), and the adjusting screw (22) and the threaded sleeve (19) are threadedly engaged.

6. The positioning structure for a rivet stamping equipment according to claim 5, characterized in that: The two sets of positioning clamps (21) are respectively connected to positioning rods (23) on both sides near the adjusting screw (22). The positioning rods (23) are matched with the positioning sliding holes (20) and the positioning rods (23) and the positioning sliding holes (20) are in sliding fit.

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