A rivet gun push rod structure capable of fast obstacle avoidance

Abstract

The utility model relates to riveting equipment technical field, and specifically is a kind of rivet gun push rod structure of quick obstacle avoidance, including bending top rod and adjusting structure, bending top rod and the output end connection of hydraulic rivet gun, the bending top rod is equipped with telescopic cavity, the bending top rod is connected by adjusting structure and riveting male head, the adjusting structure includes lengthener one, lengthener two and tension spring, the lengthener one and lengthener two rotatable connection, the both ends of tension spring are connected with lengthener one, lengthener two respectively, the lengthener one is connected with riveting male head, the lengthener two is connected by tension spring and the inner wall of telescopic cavity, compared with prior art, the utility model is through setting lengthener one and lengthener two of rotatable connection, cooperate tension spring simultaneously, the quick obstacle avoidance for the bending part of workpiece is realized, to reduce hydraulic stroke, improve working life.

Description

Technical Field

[0001] This utility model relates to the field of riveting equipment technology, specifically a rivet gun push rod structure for rapid obstacle avoidance. Background Technology

[0002] Currently, riveting technology has been widely used in various industries, and existing riveting equipment is usually used in conjunction with hydraulic rivet guns.

[0003] In existing hydraulic riveting guns, a full-stroke ejector rod is typically used. For example, Chinese utility model patent CN213134769U discloses an adjustable hydraulic tool riveting head, which includes a connecting part, a push rod of a hydraulic tool passing through the connecting part, a male riveting head threaded onto the push rod, a bearing part connected to the connecting part, a sliding block slidably connected to the bearing part, and a female riveting head connected to the sliding block. During riveting, the product to be riveted is placed between the male and female riveting heads, and then the push rod is driven to move the male riveting head to achieve pressing.

[0004] However, when the above-mentioned prior art is used, if there is a bent portion 111 on the workpiece 11, the part of the workpiece 11 to be riveted is between two bent portions 11, and the bent portion 111 of the workpiece 11 is larger than the distance between the riveting male head 2 and the riveting female head 10. For example Figure 1 As shown, if the part to be riveted on the workpiece 11 is placed between the male riveting head 2 and the female riveting head 10, the distance between the male riveting head 2 and the female riveting head 10 needs to be increased to avoid obstacles. This requires the hydraulic riveting gun 12 to have a larger hydraulic stroke. However, using a larger hydraulic stroke corresponds to lower work efficiency, higher energy consumption, and a shorter product lifespan.

[0005] Based on the above reasons, this utility model designs a fast obstacle avoidance rivet gun push rod structure, which can quickly avoid obstacles at the bending parts of the workpiece, reduce hydraulic stroke, and extend product service life. Utility Model Content

[0006] The technical solution adopted by this utility model to solve its technical problem is: to provide a fast obstacle avoidance rivet gun push rod structure, including:

[0007] A bending top rod is connected to the output end of a hydraulic rivet gun, and the bending top rod is provided with a telescopic cavity;

[0008] The adjusting structure includes an extension rod one, an extension rod two, and a tension spring. The extension rod one and the extension rod two are rotatably connected. The two ends of the tension spring are respectively connected to the extension rod one and the extension rod two. The extension rod one is connected to the riveting male head, and the extension rod two is connected to the inner wall of the telescopic cavity through the tension spring.

[0009] Furthermore, the extended rod 2 is provided with a sliding groove, and the bent top rod is provided with an elastic cylindrical pin 1, which is slidably disposed in the sliding groove.

[0010] Furthermore, both the elastic cylindrical pin and the sliding groove are provided.

[0011] Furthermore, there are two of each of the elastic cylindrical pins and the sliding grooves, and the elastic cylindrical pins and the sliding grooves correspond one-to-one.

[0012] Furthermore, the extension rod 2 is provided with a cavity 1, a limiting shaft 1 is inserted into the cavity 1, and a limiting shaft 2 is inserted into the telescopic cavity. The limiting shaft 1 and the limiting shaft 2 are respectively used to limit the two ends of the tension spring.

[0013] Furthermore, the extension rod is provided with a cavity for the riveting male head to pass through, and the extension rod is provided with an elastic cylindrical pin. The extension rod is fixed relative to the riveting male head by the elastic cylindrical pin.

[0014] The beneficial effects of this utility model are as follows: Compared with the prior art, this utility model, by setting up an extended rod one and an extended rod two with a rotating connection, and cooperating with a tension spring, realizes rapid obstacle avoidance of the workpiece bending part, thereby reducing the hydraulic stroke and improving the service life. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0016] In the picture: Figure 1 This is a schematic diagram illustrating the riveting position of a bent workpiece as described in the background section of the prior art.

[0017] Figure 2 This is a plan view of the connection between a fast obstacle avoidance rivet gun push rod structure and a hydraulic rivet gun structure provided in Embodiment 1 of this utility model.

[0018] Figure 3 for Figure 1 An exploded view of the rivet gun push rod structure for rapid obstacle avoidance.

[0019] Explanation of reference numerals in the attached drawings: 1. Bending top rod; 2. Riveting male head; 3. Extension rod one; 4. Extension rod two; 41. Slide groove; 5. Tension spring; 6. Pin; 7. Limiting shaft one; 8. Elastic cylindrical pin one; 9. Limiting shaft two; 10. Riveting female head; 11. Workpiece; 111. Bending part; 12. Hydraulic rivet gun; 13. Telescopic cavity; 14. Elastic cylindrical pin two. Detailed Implementation

[0020] To make the technical problem to be solved, the technical solution, and the beneficial effects of this utility model clearer, the present utility model will now be described in detail with reference to the accompanying drawings. This drawing is a simplified schematic diagram, illustrating only the basic aspects of the present utility model, and therefore only shows the components relevant to the present utility model. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0021] Example 1

[0022] This utility model refers to Figure 2 and Figure 3 This utility model provides a fast obstacle avoidance rivet gun push rod structure, including a bending push rod 1 and an adjustment structure. The bending push rod 1 is connected to the output end of a hydraulic rivet gun 12, and the bending push rod 1 is provided with a telescopic cavity 13. Specifically, Figure 2 The hydraulic rivet gun 12 only shows the part of the structure connected to the bending rod 1.

[0023] Please refer to Figure 2 and Figure 3 The bending top rod 1 is connected to the riveting male head 2 through the adjustment structure. The adjustment structure includes an extension rod 3, an extension rod 4 and a tension spring 5. The extension rod 3 and the extension rod 4 are rotatably connected. The two ends of the tension spring 5 are connected to the extension rod 3 and the extension rod 4 respectively. The extension rod 3 is connected to the riveting male head 2. The extension rod 4 is connected to the inner wall of the telescopic cavity 13 through the tension spring 5.

[0024] Specifically, the rear end of extension rod 3 has a flat, rounded arc shape, and the front end of extension rod 4 has a groove (not labeled in the figure) corresponding to the rear end of extension rod 3, and they are rotatably connected by pin 66. In this embodiment, the relative rotation range between extension rod 3 and extension rod 4 is 0° to 90°.

[0025] Please refer to Figure 3 The extension rod 4 is provided with a groove 41, and the bending top rod 1 is provided with an elastic cylindrical pin 8, which is slidably disposed within the groove 41. Specifically, the groove 41 is arranged along the axial direction of the bending top rod 1. The relative sliding cooperation between the groove 41 and the elastic cylindrical pin 8 limits the stroke of the tension spring 5, making it difficult for the extension rod 3 to completely disengage from the telescopic cavity 13, thereby preventing the tension spring 5 from failing due to overtravel.

[0026] Specifically, both the elastic cylindrical pin 8 and the sliding groove 41 are provided.

[0027] Please refer to Figure 3The extension rod 2 4 has a cavity 1 (not shown in the figure) for placing the tension spring 5. A limiting shaft 1 7 passes through the cavity 1, and a limiting shaft 2 9 passes through the telescopic cavity 13. The limiting shaft 1 7 and the limiting shaft 2 9 are used to limit the two ends of the tension spring 5, respectively. Specifically, the pull rings at both ends of the tension spring 5 are located in the cavity 1 and the telescopic cavity 13, respectively. The limiting shaft 1 7 and the limiting shaft 2 9 pass through the pull rings at both ends of the tension spring 5, thereby fixing the two ends of the tension spring 5 to the bending top rod 1 and the extension rod 2 4, respectively.

[0028] Please refer to Figure 3 The extension rod 3 is provided with a cavity 2 (not shown in the figure) for the riveting male head 2 to pass through. The extension rod 3 is provided with an elastic cylindrical pin 2 14. The extension rod 3 is fixed relative to the riveting male head 2 by the elastic cylindrical pin 2 14.

[0029] The working principle of the rivet gun push rod structure for rapid obstacle avoidance provided by this utility model is as follows: when encountering obstacles such as... Figure 1 The workpiece 11 shown has a bend 111 that needs to be crossed. First, manually pull the rotating connection between extension rod 1 (3) and extension rod 2 (4) out of the telescopic cavity 13. At this time, the tension spring 5 is stretched. Then, rotate extension rod 2 (4) 90 degrees so that extension rod 2 (4) and extension rod 1 (3) are as shown. Figure 2 As shown, the device is in a folded state, and the extension rod 2 4 is locked at the outlet of the telescopic cavity 13, so that the gap between the male and female riveting heads can pass through the bending part 111 of the workpiece 11, thus enabling rapid obstacle avoidance.

[0030] After the bent part 111 of the workpiece 11 passes between the riveting male and female heads, the extension rod 4 is rotated to return to its original position. At this time, the tension of the tension spring 5 is canceled, and the tension spring 5 resets, causing the extension rod 3 to reset. This allows the rotating connection between the extension rod 3 and the extension rod 4 to pass through and be confined within the telescopic cavity 13, thus enabling normal riveting of the part to be riveted on the workpiece 11.

[0031] This utility model, by setting up an extension rod 3 and an extension rod 4 with a rotating connection, and in conjunction with a tension spring 5, can quickly pass over the bend 111 on the workpiece 11 when it encounters a bend 111, thus achieving rapid obstacle avoidance of the bend 111 on the workpiece 11, thereby reducing the hydraulic stroke and improving the service life.

[0032] Example 2

[0033] The difference between this embodiment and Embodiment 1 is that both the elastic cylindrical pin 8 and the sliding groove 41 are provided in pairs, and the elastic cylindrical pin 8 and the sliding groove 41 correspond one-to-one. The two sliding grooves 41 are symmetrically distributed about the central axis of the bending top rod 1.

[0034] The setting of two elastic cylindrical pins 8 and two sliding grooves 41 further increases the restriction on the stroke of the tension spring 5, thereby further preventing the tension spring 5 from failing due to overtravel.

Claims

1. A fast obstacle avoidance rivet gun push rod structure, characterized in that: A bending top rod is connected to the output end of a hydraulic rivet gun, and the bending top rod is provided with a telescopic cavity; The adjusting structure includes an extension rod one, an extension rod two, and a tension spring. The extension rod one and the extension rod two are rotatably connected. The two ends of the tension spring are respectively connected to the extension rod one and the extension rod two. The extension rod one is connected to the riveting male head, and the extension rod two is connected to the inner wall of the telescopic cavity through the tension spring.

2. The rivet gun push rod structure for rapid obstacle avoidance according to claim 1, characterized in that: The extended rod 2 is provided with a sliding groove, and the bent top rod is provided with an elastic cylindrical pin 1, which is slidably disposed in the sliding groove.

3. The rivet gun push rod structure for rapid obstacle avoidance according to claim 2, characterized in that: Both the elastic cylindrical pin and the sliding groove are provided.

4. The rivet gun push rod structure for rapid obstacle avoidance according to claim 2, characterized in that: Two elastic cylindrical pins and two sliding grooves are provided, and the elastic cylindrical pins and sliding grooves correspond one-to-one.

5. The rivet gun push rod structure for rapid obstacle avoidance according to claim 3 or 4, characterized in that: The extension rod 2 has a cavity 1, a limiting shaft 1 passes through the cavity 1, and a limiting shaft 2 passes through the telescopic cavity. The limiting shaft 1 and the limiting shaft 2 are used to limit the two ends of the tension spring, respectively.

6. The rivet gun push rod structure for rapid obstacle avoidance according to claim 5, characterized in that: The extension rod is provided with a cavity 2 for the riveting male head to pass through, and the extension rod is provided with an elastic cylindrical pin 2. The extension rod is fixed relative to the riveting male head by the elastic cylindrical pin 2.

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