A rivet spot welding clamping mechanism

Abstract

The utility model discloses a rivet spot welding clamping mechanism relates to rivet clamping technical field, including bottom plate and clamping arm, the top of bottom plate is provided with support frame, the bottom surface of connecting seat is provided with no. The utility model discloses through the swing of connecting rod, drives two clamping arms to move or swing in perpendicular direction to adjust the interval between them, when needing to clamp rivet, no. When needing to release rivet, no. This design makes clamping mechanism can easily realize rivet's clamping and release, provides great convenience for rivet spot welding operation.

Description

Technical Field

[0001] This utility model relates to the field of rivet clamping technology, specifically to a clamping mechanism for rivet spot welding. Background Technology

[0002] Riveting is a common connection method that can firmly connect two or more metal parts together, meeting the requirements of structural strength and stability. During the rivet spot welding process, the clamping mechanism can stably clamp and accurately position the rivet, placing it precisely in the predetermined welding position. Therefore, the clamping mechanism can reduce defects in the welding process, such as incomplete penetration and weld deviation, and improve the welding quality.

[0003] Existing rivet clamping methods are often quite simple, such as using manual clamps. Manual clamps require operators to manually clamp and release, which not only increases operation time but also reduces overall production efficiency.

[0004] For example, a fixture for mechanical welding disclosed in patent CN211277151U requires manual tightening of fixing bolts when fixing the workpiece. When manually tightening the fixing bolts, the clamping force depends on the operator's strength. Manually tightening the fixing bolts not only requires the operator to spend extra time and effort, but also may cause the workpiece to shift or shake during the welding process due to unstable clamping force, thereby affecting work efficiency and welding quality and limiting the degree of automation of the fixture.

[0005] Therefore, it is necessary to invent a clamping mechanism for rivet spot welding to solve the above problems. Utility Model Content

[0006] The purpose of this utility model is to provide a clamping mechanism for rivet spot welding, so as to solve the problem that the bolts need to be manually tightened in the technology, which not only requires the operator to spend extra time and effort, but also may cause the workpiece to shift or shake during the welding process due to unstable clamping force.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a clamping mechanism for rivet spot welding, comprising a base plate and a clamping arm. A support frame is provided above the base plate, and a support platform is provided below the support frame. A second cylinder is provided on one side above the support platform. The output end of the second cylinder is connected to a vertical frame. Connecting rods are hinged to both ends of the bottom surface of the vertical frame. A connecting seat is hinged to the bottom surface of the connecting rods. A second slide is provided on the bottom surface of the connecting seat. A second linear slide rail is provided below the second slide. The second linear slide rail is located on the top surface of the support platform. The clamping arm is bolted to the top surface of the connecting seat.

[0008] Preferably, a No. 1 cylinder is provided on one side of the support platform and located on the base plate. The output end of the No. 1 cylinder is connected to the side wall of one side of the support platform to realize the horizontal movement of the support platform, thereby adjusting the horizontal position of the clamping arm to adapt to the clamping requirements of rivets in different positions.

[0009] Preferably, the bottom surface of the support platform is provided with a first slide table, and a first linear slide rail is provided below the first slide table. There are two first linear slide rails, which are located on the base plate. The first slide table and the first linear slide rail are slidably connected, providing stable sliding support for the support platform driven by the first cylinder, and ensuring the stability and accuracy of the support platform during horizontal movement.

[0010] Preferably, one end of the connecting rod is connected to the upright frame via a first movable pivot pin, and the clamping arm can be adjusted in the vertical direction by swinging the connecting rod.

[0011] Preferably, the other end of the connecting rod is connected to the connecting seat via a second movable shaft pin, and the movement of the connecting rod causes the connecting seat to move synchronously.

[0012] Preferably, there are two second slides, and the two second slides are slidably connected to the second linear slide rail, providing stable sliding support for the linkage-driven clamping arm and ensuring the stability and accuracy of the clamping arm during vertical movement or swinging.

[0013] Preferably, there are two clamping arms, which are symmetrical about the support frame. The side walls of the two clamping arms are provided with multiple clamping slots at equal intervals. The inner walls of the clamping slots are provided with silicone pads. The multiple clamping slots can clamp multiple rivets together, and the silicone pads can protect the rivet surface from scratches, while increasing friction and improving the clamping effect.

[0014] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0015] 1. In this utility model, the support platform can move horizontally by driving the No. 1 cylinder, thereby driving the clamping arm to adjust its position in the X-axis direction. This design allows the clamping mechanism to flexibly adapt to the processing requirements of rivets in different positions. By driving the No. 1 cylinder, the clamping arm can be accurately moved to the required position to process rivets in any position inside the clamping groove. This not only improves the versatility of the clamping mechanism, but also greatly improves the processing efficiency.

[0016] 2. In this utility model, the swing of the connecting rod drives the two clamping arms to move or swing in the vertical direction, thereby adjusting the distance between them. When it is necessary to clamp the rivet, the second cylinder drives the clamping arms to move closer to each other until the silicone pad in the clamping groove is tightly attached to the rivet surface, achieving stable clamping. When it is necessary to release the rivet, the second cylinder drives the clamping arms to move away from each other, releasing the clamping of the rivet. This design allows the clamping mechanism to easily clamp and release the rivet, providing great convenience for rivet spot welding operations. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a three-dimensional structural diagram of the first cylinder of this utility model;

[0019] Figure 3 This is a three-dimensional structural diagram of the first sliding table and the first linear slide rail of this utility model;

[0020] Figure 4 This is a three-dimensional cross-sectional structural diagram of the support frame of this utility model;

[0021] Figure 5 This is a three-dimensional structural diagram of the No. 2 slide table and the No. 2 linear slide rail of this utility model.

[0022] Explanation of reference numerals in the attached figures:

[0023] 1. Base plate; 2. Support frame; 3. Support platform; 4. Cylinder No. 1; 5. Slide No. 1; 6. Linear slide rail No. 1; 7. Cylinder No. 2; 8. Stand; 9. Connecting rod; 10. Movable pin No. 1; 11. Connecting seat; 12. Movable pin No. 2; 13. Slide No. 2; 14. Linear slide rail No. 2; 15. Clamping arm; 16. Clamping groove. Detailed Implementation

[0024] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0025] This utility model provides, for example Figure 1-5The rivet spot welding clamping mechanism shown includes a base plate 1 and a clamping arm 15. A support frame 2 is provided above the base plate 1, and a support platform 3 is provided below the support frame 2. A second cylinder 7 is provided on one side above the support platform 3. The output end of the second cylinder 7 is connected to a vertical frame 8. The bottom surfaces of the vertical frame 8 are hinged to two connecting rods 9. The bottom surfaces of the connecting rods 9 are hinged to a connecting seat 11. A second slide table 13 is provided on the bottom surface of the connecting seat 11. A second linear slide rail 14 is provided below the second slide table 13. The second linear slide rail 14 is located on the top surface of the support platform 3. The clamping arm 15 is bolted to the top surface of the connecting seat 11.

[0026] A cylinder 4 is installed on one side of the support platform 3 and is located on the base plate 1. The output end of the cylinder 4 is connected to the side wall of the support platform 3. A slide 5 is installed on the bottom surface of the support platform 3. A linear slide rail 6 is installed below the slide 5. There are two linear slide rails 6. The two linear slide rails 6 are located on the base plate 1. The slide 5 and the linear slide rail 6 are slidably connected.

[0027] In this embodiment, the support platform 3 is driven to move in the horizontal direction of the X-axis by the first cylinder 4, thereby flexibly adjusting the horizontal position of the clamping arm 15 to adapt to the processing requirements of rivets in different positions clamped inside the clamping arm 15. The first slide table 5 and the first linear slide rail 6 provide stable sliding support for the support platform 3, ensuring that it can move smoothly and accurately.

[0028] One end of the connecting rod 9 is connected to the upright frame 8 via a first movable shaft pin 10, and the other end of the connecting rod 9 is connected to the connecting seat 11 via a second movable shaft pin 12. Two second slide tables 13 are provided, and the two second slide tables 13 are slidably connected to the second linear slide rail 14. Two clamping arms 15 are provided, and the two clamping arms 15 are symmetrical about the support frame 2. Multiple clamping grooves 16 are equidistantly arranged on the side walls of the two clamping arms 15, and silicone pads are provided on the inner walls of the clamping grooves 16.

[0029] In this embodiment, the swing design of the connecting rod 9 allows the clamping arm 15 to move in the horizontal direction. By adjusting the angle of the connecting rod 9, the position and spacing of the two clamping arms 15 can be flexibly changed to adapt to the clamping requirements of rivets of different sizes. In addition, multiple clamping slots 16 are provided so that the clamping mechanism can clamp multiple rivets at the same time. Furthermore, the silicone pads provided on the inner wall of the clamping slots 16 not only protect the rivet surface from scratches, but also increase friction and improve the clamping effect.

[0030] Working principle of this utility model:

[0031] Refer to the instruction manual appendix Figure 1-5When using this utility model, firstly, place the rivets to be processed sequentially inside the clamping groove 16. Then, start the second cylinder 7, whose output end pushes the upright 8 forward or backward. The movement of the upright 8 is transmitted to the connecting seat 11 through the swing of the connecting rod 9, thereby driving the clamping arm 15 to move or swing in the horizontal direction. Adjust the distance between the two clamping arms 15 according to the size of the rivets and the clamping requirements until the silicone pad in the clamping groove 16 is tightly attached to the rivet surface. The second slide table 13 and the second linear slide rail 14 are connected. The sliding connection provides stable sliding support for the clamping arm 15, ensuring the smoothness and accuracy of the clamping process. Once the clamping arm 15 has firmly clamped the rivet, spot welding or other processing operations can be performed. When it is necessary to process rivets at different positions inside the clamping arm 15, the first cylinder 4 can be activated. Its output end pushes the first slide 5 at the bottom of the support platform 3 to move horizontally along the X-axis on the first linear slide rail 6 until the rivet to be processed on the clamping arm 15 is aligned directly below the processing tool such as the spot welding head.

[0032] The cylinders 4 and 7 mentioned above are both mature and reliable products from the market. Both cylinders 4 and 7 are controlled by a corresponding controller. We will not go into detail about their structure and function here.

[0033] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A clamping mechanism for spot welding rivets, comprising a base plate (1) and a clamping arm (15), characterized in that: A support frame (2) is provided above the base plate (1), and a support platform (3) is provided below the support frame (2). A second cylinder (7) is provided on one side above the support platform (3). The output end of the second cylinder (7) is connected to a stand (8). A connecting rod (9) is hinged to both ends of the bottom surface of the stand (8). A connecting seat (11) is hinged to the bottom surface of the connecting rod (9). A second slide table (13) is provided on the bottom surface of the connecting seat (11). A second linear slide rail (14) is provided below the second slide table (13). The second linear slide rail (14) is located on the top surface of the support platform (3). A clamping arm (15) is installed on the top surface of the connecting seat (11) by bolts.

2. The clamping mechanism for rivet spot welding according to claim 1, characterized in that: A cylinder (4) is provided on one side of the support platform (3) and located on the base plate (1). The output end of the cylinder (4) is connected to the side wall of one side of the support platform (3).

3. The clamping mechanism for rivet spot welding according to claim 2, characterized in that: The bottom surface of the support platform (3) is provided with a first slide (5), and a first linear slide rail (6) is provided below the first slide (5). There are two first linear slide rails (6), and the two first linear slide rails (6) are located on the base plate (1). The first slide (5) and the first linear slide rail (6) are slidably connected.

4. The clamping mechanism for rivet spot welding according to claim 1, characterized in that: One end of the connecting rod (9) is connected to the upright frame (8) via a movable pivot pin (10).

5. The clamping mechanism for rivet spot welding according to claim 4, characterized in that: The other end of the connecting rod (9) is connected to the connecting seat (11) by a second movable shaft pin (12).

6. The clamping mechanism for rivet spot welding according to claim 1, characterized in that: Two slide tables (13) are provided, and the two slide tables (13) are slidably connected to the linear slide rail (14).

7. The clamping mechanism for rivet spot welding according to claim 1, characterized in that: Two clamping arms (15) are provided. The two clamping arms (15) are centrally symmetrical about the support frame (2). Multiple clamping grooves (16) are equidistantly arranged on the side walls of the two clamping arms (15). The inner wall of the clamping grooves (16) is provided with silicone pads.

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