Projection welding machine for automobile stamping parts

Abstract

The utility model relates to the technical field of automobile manufacturing equipment, in particular to a projection welding machine for automobile stamping parts, which comprises a projection welding machine body, the projection welding machine body comprises an upper electrode stem moving up and down and a lower electrode stem matched with the upper electrode stem, the lower electrode stem can be fixed on the projection welding machine body through a connecting plate, and the lower electrode stem is matched with a support table. Two clamping pieces matched with each other are arranged on the supporting table, vertical telescopic rods are connected to the bottoms of the clamping pieces, a linear module is arranged on the supporting table corresponding to the vertical telescopic rods, and the lower ends of the vertical telescopic rods are arranged on a sliding table of the linear module. The automobile stamping part can be stably clamped and fixed, the stability of the automobile stamping part in the welding process is improved, the welding precision is improved, and the projection welding effect can be improved; and automobile stamping parts of different sizes, shapes and thicknesses can be effectively clamped, and the application range is wide.

Description

Technical Field

[0001] This utility model belongs to the field of automotive manufacturing equipment technology, specifically relating to a projection welding machine for automotive stamping parts. Background Technology

[0002] Projection welding machines are among the most commonly used welding equipment in the automotive industry. Their working principle is as follows: a cylinder or other pressurizing mechanism drives the upper electrode rod downwards, pressing the workpiece between the upper and lower electrodes. A welding current is then applied, forming a weld nugget on the workpiece. The upper electrode rod then returns, completing the welding process. However, due to the varying shapes, sizes, and thicknesses of automotive stampings, the clamping components of existing projection welding machines cannot effectively hold and fix these parts, leading to displacement during welding. This affects welding accuracy and product quality, hindering production. Therefore, a projection welding machine for automotive stampings is needed to solve these technical problems. Utility Model Content

[0003] To address the aforementioned deficiencies in existing technologies, this utility model provides a projection welding machine for automotive stamping parts. The machine body includes an upper electrode rod that moves vertically and a lower electrode rod that cooperates with the upper electrode rod. The lower electrode rod is fixed to the machine body via a connecting plate. A support platform is provided on the lower electrode rod, and two cooperating clamping members are provided on the support platform. A vertical telescopic rod is connected to the bottom of each clamping member. A linear module is provided on the support platform corresponding to the vertical telescopic rod, and the lower end of the vertical telescopic rod is mounted on the slide of the linear module. By fixing the automotive stamping part to be welded using the two clamping members, the stability of the automotive stamping part during the welding process is improved, the welding accuracy is increased, and the projection welding effect is enhanced.

[0004] Preferably, the vertical telescopic rod is an electric push rod or a hydraulic cylinder.

[0005] Preferably, the clamping component includes a horizontal plate with a bracket fixed on it. A bidirectional screw is mounted on the bracket, with both ends of the screw rotatably connected to the ends of the bracket via bearings. One end of the screw is connected to a forward / reverse motor. Slider blocks are threaded into the forward and reverse threaded sections of the screw, respectively. Limit blocks are fixedly connected to each of the two sliders. Guide grooves are provided on the brackets corresponding to the two limit blocks, parallel to the bidirectional screw. One side of each limit block is slidably disposed within the guide groove. Vertical fixing plates are fixed to each slider, and horizontal telescopic rods are mounted on the fixing plates. Clamping plates are connected to the telescopic ends of the horizontal telescopic rods, and the clamping plates of the two clamping components face each other. By rotating the forward / reverse motor, the two sliders on the bidirectional screw can move towards or away from each other, thereby adjusting the position between the two clamping plates. The distance between the two clamping plates of the two clamping components can be flexibly adjusted as needed to accommodate automotive stamping parts of different sizes and shapes. The extension and retraction of the horizontal telescopic rods effectively clamps the automotive stamping parts.

[0006] Preferably, the horizontal telescopic rod is an electric push rod or a hydraulic cylinder.

[0007] Preferably, the bracket is a U-shaped bracket.

[0008] This utility model also includes other components that enable the projection welding machine for automotive stamping parts to operate normally, such as the control components for the projection welding machine body, the control components for the forward and reverse motors, the control components for the electric push rod, the control components for the hydraulic cylinder, and the control components for the linear module, all of which are conventional technical means in the art. Furthermore, devices or components not limited in this utility model, such as the linear module, bidirectional screw, electric push rod, hydraulic cylinder, upper electrode rod, and lower electrode rod, all employ conventional technical means and conventional equipment in the art.

[0009] Working principle: During projection welding, based on the size, thickness, and shape of the automotive stamping part to be projected, the length of the vertical telescopic rod is first adjusted appropriately to match the height of the clamping parts with the automotive stamping part, the upper electrode rod, and the lower electrode rod. Then, the automotive stamping part is placed between the two clamping parts. Two forward and reverse motors rotate, driving two bidirectional screws to rotate. Based on the size of the automotive stamping part, the distance between the two clamping plates on each clamping part is adjusted appropriately. Subsequently, the horizontal telescopic rod extends, so that the clamping plates of the two clamping parts hold the automotive stamping part stably, and the machine housing performs the projection welding operation.

[0010] The beneficial effects of this utility model are: it can stably clamp and fix automotive stamping parts, improve the stability of automotive stamping parts during the welding process, improve welding accuracy, and help improve projection welding effect; it can effectively clamp automotive stamping parts of different sizes, shapes, and thicknesses, and has a wide range of applications. Attached Figure Description

[0011] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0012] Figure 1 This is a schematic diagram of the structure of a projection welding machine for automotive stamping parts according to an embodiment of the present utility model;

[0013] Figure 2 for Figure 1 A schematic diagram of the structure of the clamping component.

[0014] In the diagram: 1. Projection welding machine body; 2. Connecting plate; 3. Lower electrode rod; 4. Upper electrode rod; 5. Support platform; 6. Linear module; 7. Vertical telescopic rod; 8. Bracket; 9. Bidirectional screw; 10. Guide groove; 11. Slider; 12. Fixing plate; 13. Horizontal telescopic rod; 14. Clamping plate; 15. Forward and reverse motor; 16. Horizontal plate. Detailed Implementation

[0015] The present invention will now be clearly described with reference to the accompanying drawings and specific embodiments. This description is merely for explaining the present invention and is not intended to limit it. Any modifications, equivalent substitutions, improvements, etc., made by those skilled in the art based on the embodiments of the present invention without inventive effort to obtain all other embodiments should be included within the protection scope of the present invention.

[0016] Example

[0017] like Figure 1-2 As shown, this utility model provides a projection welding machine for automotive stamping parts, including a projection welding machine body 1. The projection welding machine body 1 includes an upper electrode rod 4 that moves up and down and a lower electrode rod 3 that cooperates with the upper electrode rod 4. The lower electrode rod 3 can be fixed to the projection welding machine body 1 by a connecting plate 2. The lower electrode rod 3 is equipped with a support platform 5. The support platform 5 is provided with two mutually cooperating clamping members. The bottom of the clamping members is connected to a vertical telescopic rod 7. The support platform 5 corresponding to the vertical telescopic rod 7 is provided with a linear module 6. The lower end of the vertical telescopic rod 7 is set on the slide of the linear module 6. By fixing the automotive stamping part to be welded with the two clamping members, the stability of the automotive stamping part during the welding process is improved, the welding accuracy is improved, and the projection welding effect is improved.

[0018] The vertical telescopic rod 7 is an electric push rod or a hydraulic cylinder.

[0019] The clamping component includes a horizontal plate 16, on which a bracket 8 is fixed. A bidirectional screw 9 is provided on the bracket 8. The two ends of the bidirectional screw 9 are rotatably connected to the two ends of the bracket 8 via bearings. One end of the bidirectional screw 9 is connected to a forward and reverse reversing motor 15. A slider 11 is threadedly engaged on the forward and reverse threaded sections of the bidirectional screw 9. Limit blocks are fixedly connected to the two sliders 11. A guide groove 10 is provided on the bracket 8 corresponding to the two limit blocks. The guide groove 10 is parallel to the bidirectional screw 9. One side of each of the two limit blocks is slidably disposed in the guide groove 10. A vertical fixing plate 12 is fixed on each of the two sliders 11. A horizontal telescopic rod 13 is provided on the fixing plate 12. A clamping plate 14 is connected to the telescopic end of the horizontal telescopic rod 13. The clamping plates 14 of the two clamping components are arranged facing each other. By rotating the forward and reverse motor 15, the two sliders 11 on the bidirectional screw 9 can move towards or away from each other, thereby adjusting the position between the two clamping plates 14. The distance between the two clamping plates 14 of the two clamping parts can be flexibly adjusted as needed to adapt to automotive stamping parts of different sizes and shapes. The extension and retraction of the horizontal telescopic rod 13 enables the clamping plates 14 to effectively clamp the automotive stamping parts.

[0020] The horizontal telescopic rod 13 is an electric push rod or a hydraulic cylinder.

[0021] The bracket 8 is a U-shaped frame.

[0022] During projection welding, based on the size, thickness, and shape of the automotive stamping part to be projected, the length of the vertical telescopic rod is first adjusted appropriately to match the height of the clamping parts with the automotive stamping part, the upper electrode rod, and the lower electrode rod. Then, the automotive stamping part is placed between the two clamping parts, and the two forward and reverse motors rotate, driving the two bidirectional screws to rotate. Based on the size of the automotive stamping part, the distance between the two clamping plates on each clamping part is adjusted appropriately. Subsequently, the horizontal telescopic rod extends, so that the clamping plates of the two clamping parts hold the automotive stamping part stably, and the machine housing is subjected to projection welding.

[0023] The projection welding machine, forward and reverse motor, hydraulic cylinder, electric push rod, etc. in the above embodiments are all existing technologies. This application does not make any improvements to them, but only utilizes their existing functions. For their specific structure and principle, please refer to the product manual or existing technical data, which are all existing technologies.

[0024] The embodiments of this utility model have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A projection welding machine for automotive stamping parts, comprising a projection welding machine body, wherein the projection welding machine body includes an upper electrode rod that moves up and down and a lower electrode rod that cooperates with the upper electrode rod, characterized in that: The lower electrode rod is fitted with a support platform, and the support platform is provided with two mutually cooperating clamping members. The bottom of the clamping members is connected to a vertical telescopic rod, and a linear module is provided on the support platform corresponding to the vertical telescopic rod. The lower end of the vertical telescopic rod is set on the slide table of the linear module.

2. The projection welding machine for automotive stamping parts according to claim 1, characterized in that: The vertical telescopic rod is an electric push rod or a hydraulic cylinder.

3. The projection welding machine for automotive stamping parts according to claim 1, characterized in that: The clamping component includes a horizontal plate with a bracket fixed on it. A bidirectional screw is mounted on the bracket, with both ends of the screw rotatably connected to the two ends of the bracket via bearings. One end of the bidirectional screw is connected to a forward / reverse motor. Slider blocks are threaded into the forward and reverse threaded sections of the bidirectional screw. Limit blocks are fixedly connected to each of the two sliders. Guide grooves are provided on the brackets corresponding to the two limit blocks, parallel to the bidirectional screw. One side of each limit block is slidably disposed within the guide groove. Vertical fixing plates are fixed to each of the two sliders. A horizontal telescopic rod is mounted on the fixing plate, with a clamping plate connected to the telescopic end of the horizontal telescopic rod. The clamping plates of the two clamping components face each other.

4. The projection welding machine for automotive stamping parts according to claim 3, characterized in that: The horizontal telescopic rod is either an electric push rod or a hydraulic cylinder.

5. The projection welding machine for automotive stamping parts according to claim 3, characterized in that: The support frame is a U-shaped frame.

Images