Small piece manual positioning mechanism for welding

Abstract

The utility model relates to a small piece manual positioning mechanism for welding. The small piece manual positioning mechanism comprises a rotary pressing rod, a double-support base, a rotating shaft and a spring assembly. A vertical pressing plate is arranged at the front end of the rotating pressing rod, a center rotating part with a through hole is formed in the middle of the rotating pressing rod, the center rotating part is rotationally connected with the middle of the double-supporting base through a rotating shaft, and the rear portion of the rotating pressing rod is connected with the double-supporting base through a spring assembly. And the spring assembly resets and drives the vertical pressing plate to press and fix the small plate. The positioning mechanism can solve the problems of space limitation of small parts, inconvenience of normal air cylinder units and insufficient space. Meanwhile, the pure mechanical structure is convenient for staff to operate, the weight is smaller than that of a cylinder, the operation time is short, and the efficiency is greatly improved; a pure mechanical structure unit and a spring structure improve efficiency, cost is lower than that of an air cylinder unit structure, and traditional small complex air cylinder structures are broken through. And vehicle manufacturing cost, manpower and material resource cost are saved. And the later maintenance cost is low.

Description

Technical Field

[0001] The utility model relates to the technical field of welding auxiliary tooling, in particular to a manual positioning mechanism for small parts used in welding. Background Art

[0002] The technology for BIW fixture units is relatively mature, typically consisting of a cylinder with supporting, clamping, and connecting components. Currently, this unit structure is widely used by major automakers and automakers, but it presents several challenges. While it can be used flexibly for loading large panels, it presents significant challenges for smaller panels. This can even hinder welding torch placement and create operational difficulties for operators.

[0003] Disadvantages of existing technology: The company's current cylinder-and-parts unit structure is more suitable for normal panels and large panel areas. However, considering the difficulty of factory workers loading parts, the existing unit structure is slow, the cylinder is heavy, and operation is laborious. Loading small parts is also difficult. Some small parts even lack space, making the unit structure impossible to complete with a standard cylinder unit. This can also prevent the welding gun from reversing, hindering the welding gun's spotting. Part deformities can also occur, which increases processing time and costs. Utility Model Content

[0004] The purpose of the utility model is to provide a manual positioning mechanism for small parts for welding, aiming to overcome the defects of the prior art and solve the problem that the space of small panels is limited and normal cylinder units cannot be used, which may also cause the welding gun to be unable to avoid.

[0005] To this end, the utility model proposes a manual positioning mechanism for small parts for welding, including a rotating pressure rod, a double support base, a rotating shaft and a spring assembly; the front end of the rotating pressure rod has a vertical pressure plate, and the middle has a central rotating part with a through hole, the central rotating part is rotatably connected to the middle part of the double support base through a rotating shaft, and the rear part of the rotating pressure rod is connected to the double support base through the spring assembly. The multi-axis manipulator inserts the small panel into the gap between the vertical pressure plate and the double support base, and the spring assembly resets and drives the vertical pressure plate to press and fix the small panel.

[0006] As a preferred technical solution of the present application, a pair of pressing blocks are installed at the left and right ends of the double support base, and the front end surfaces of the pressing blocks protrude from the front end surface of the double support base.

[0007] As a preferred technical solution of the present application, a guide sleeve and a gasket are provided on the rotating shaft, and the wear resistance of the guide sleeve and the gasket is lower than that of the rotating pressure rod and the double support base.

[0008] As a preferred technical solution of the present application, a U-shaped positioning groove is provided at the upper end of the double support base, and the U-shaped positioning groove cooperates with the bolts on the small plate.

[0009] As a preferred technical solution of the present application, a proximity switch is provided on the double support base relative to the U-shaped positioning groove.

[0010] As a preferred technical solution of the present application, the proximity switch is connected to the double support base via a proximity switch mounting plate.

[0011] As a preferred technical solution of the present application, a spring fixing connector is fixedly connected to the bottom of the double support base, and the spring assembly is located between the spring fixing connector and the double support base.

[0012] As a preferred technical solution of the present application, the spring assembly includes a compression spring and a guide bolt, the two ends of the guide bolt are respectively connected to the spring fixing connector and the double support base, and the compression spring is sleeved in the guide bolt.

[0013] As a preferred technical solution of the present application, the rotating pressure rod is provided with a waist-shaped hole, the guide bolt passes through the waist-shaped hole and is fixedly connected to the spring fixing connector, and the compression spring is located between the rotating pressure rod and the double support base.

[0014] As a preferred technical solution of the present application, a plurality of connecting plates are fixedly connected to the lower end of the double support base.

[0015] This utility model provides a manual positioning mechanism for small parts used in welding, resolving space constraints for small parts that are often inconvenient and require limited space using conventional cylinder units. Furthermore, the purely mechanical structure is easy for employees to operate, weighs less than a cylinder unit, and requires minimal operation time, significantly improving efficiency. Considering cost, this design utilizes a purely mechanical unit with a spring structure that not only improves efficiency but also offers lower costs than a cylinder unit, breaking away from the traditional complex cylinder structure for small parts. This reduces vehicle manufacturing costs, labor, and material resources, while also reducing subsequent maintenance costs.

[0016] In addition to the above-described purposes, features and advantages, the present application also has other purposes, features and advantages. The present application will be further described in detail below with reference to the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings that constitute part of this application are used to provide a further understanding of this application. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute an improper limitation on this application. In the drawings:

[0018] Figure 1This is a schematic diagram of the three-dimensional structure of the manual positioning mechanism for small parts used in welding of the present utility model. Figure 1 ;

[0019] Figure 2 This is a schematic diagram of the structure of the manual positioning mechanism for small parts used in welding of the utility model. Figure 2 ;

[0020] Figure 3 This is an exploded view of the manual positioning mechanism for small parts used for welding of the utility model;

[0021] Explanation of the accompanying drawings: 1. Connecting plate; 2. Spring fixing connector; 3. Rotating pressure rod; 4. Double support base; 5. Clamping block; 6. Proximity switch mounting plate; 7. Proximity switch; 8. Rotating shaft; 9. Spring assembly; 10. Small plate 10; 31. Pressure plate; 32. Center rotating part; 33. Waist-shaped hole; 41. U-shaped positioning groove. DETAILED DESCRIPTION

[0022] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0023] like Figures 1 to 3 As shown, the manual positioning mechanism for small parts for welding of the present invention includes: a connecting plate 1, a spring-fixed connecting part 2, a rotating pressure rod 3, a double support base 4, a clamping block 5, a proximity switch mounting plate 6, a proximity switch 7, a rotating shaft 8 and a spring assembly 9; the double support base 4 is used to place the small plate 10 grasped by the robot, and the rotating pressure rod 3 presses and fixes the small plate 10 under the action of the spring, which is convenient for welding equipment.

[0024] Specifically, a U-shaped positioning groove 41 is provided at the upper end of the double support base 4, and the bolts on the small panel 10 cooperate with the U-shaped positioning groove 41 to realize the positioning of the small panel 10. A pair of clamping blocks 5 are installed at the left and right ends of the double support base 4 by bolts, and the front end surface of the clamping block 5 protrudes from the front end surface of the double support base 4, so that a groove space is formed between the pair of clamping blocks 5 to place the small panel 10, thereby further realizing the left and right positioning of the small panel 10.

[0025] The front end of the rotating pressure rod 3 is a vertical pressure plate 31, and there is a central rotating part 32 with a through hole in the middle. The central rotating part 32 is rotatably connected to the middle part of the double support base 4 through the rotating shaft 8. A waist-shaped hole 33 is provided at the rear part of the rotating pressure rod 3. The spring assembly 9 is installed at the position of the waist-shaped hole 33 and is connected to the spring fixing connector 2. The spring fixing connector 2 is fixedly connected to the bottom of the double support base 4. The rotating pressure rod 3 can be rotated and expanded to allow the small plate 10 to be placed on the double support base 4, and the rotating pressure rod 3 is rotated and pressed against the small plate 10 under the action of the spring assembly 9.

[0026] The spring assembly 9 comprises a compression spring and a guide bolt. One end of the guide bolt is fixedly connected to the spring fixing connector 2, while the other end is movably connected to the waist-shaped hole 33 of the rotating pressure rod 3. The compression spring is sleeved within the guide bolt. The rotating pressure rod 3 has a waist-shaped hole 33, through which the guide bolt passes and is fixedly connected to the spring fixing connector 2. The compression spring is located between the rotating pressure rod 3 and the dual support base 4.

[0027] like Figure 3 As shown, the rotating shaft 8 is provided with a guide sleeve and a gasket, and the wear resistance of the guide sleeve and the gasket is lower than that of the rotating pressure rod 3 and the double support base 4, which is convenient for debugging and timely replacement after wear.

[0028] like Figure 1 As shown, the proximity switch 7 is mounted on the proximity switch mounting plate 6, and the proximity switch mounting plate 6 is mounted on the double support base 4, and the proximity switch 7 is positioned opposite to the U-shaped positioning groove 41, which is used to determine whether the small plate 10 is placed in place.

[0029] In addition, a plurality of connecting plates 1 are fixedly connected to the lower end of the double support base 4. Through the cooperation of the plurality of connecting plates 1, the manual positioning mechanism of the present application is installed at a suitable position of the welding equipment.

[0030] The working principle and working process of the manual positioning mechanism for small parts for welding of the present invention are briefly described below.

[0031] The rotary pressure rod 3 is open in the normal state and has no conflict with the small panel 10. After the small panel 10 is installed, the spring is reset, and the vertical pressure plate 31 of the rotary pressure rod 3 is pressed on the small panel 10. The rotating shaft 8 is its rotation center. Rotating the rotary pressure rod 3 and cooperating with the spring to install the parts is more convenient and saves employees more effort. The double support base 4 is used to support the small panel 10 after the parts are installed, forming a clamping state with the vertical pressure plate 31. A pair of clamping blocks 5 is used to clamp the side of the panel. When the proximity switch 7 detects that the small panel is installed, the installation is detected in place. The spring assembly 9 assists the rotary pressure rod 3 to open and tighten. The spring fixing connector 2 fixes the spring; this structure can be used in large quantities and saves time and effort.

[0032] This utility model provides a manual positioning mechanism for small parts used in welding. It specifically addresses the inconvenience of loading small parts, space limitations, and insufficient space for welding guns. Its purely mechanical unit structure is not only convenient and efficient, but also saves costs for companies and employees, saving them time and effort.

[0033] The above description is merely a preferred embodiment of the present application and is not intended to limit the present application. Various modifications and variations are possible for those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

Claims

1. A manual positioning mechanism for small parts used in welding, characterized in that: include: Rotating pressure rod (3), double support base (4), rotating shaft (8) and spring assembly (9); The front end of the rotating pressure rod (3) has a vertical pressure plate (31), and the middle part has a central rotating part (32) with a through hole. The central rotating part (32) is rotatably connected to the middle part of the double support base (4) through a rotating shaft (8). The rear part of the rotating pressure rod (3) is connected to the double support base (4) through the spring assembly (9). The multi-axis manipulator inserts the small plate (10) into the gap between the vertical pressing plate (31) and the double support base (4), and the spring assembly (9) resets and drives the vertical pressing plate (31) to press and fix the small plate (10).

2. The manual positioning mechanism for small parts for welding according to claim 1, characterized in that: A pair of pressing blocks (5) are installed at the left and right ends of the double support base (4), and the front end surfaces of the pressing blocks (5) protrude from the front end surface of the double support base (4).

3. The manual positioning mechanism for small parts for welding according to claim 1, characterized in that: The rotating shaft (8) is provided with a guide sleeve and a gasket, and the wear resistance of the guide sleeve and the gasket is lower than that of the rotating pressure rod (3) and the double support base (4).

4. The manual positioning mechanism for small parts for welding according to claim 1, characterized in that: A U-shaped positioning groove (41) is provided at the upper end of the double support base (4), and the U-shaped positioning groove (41) cooperates with the bolt on the small plate (10).

5. The manual positioning mechanism for small parts for welding according to claim 4, characterized in that: A proximity switch (7) is provided on the double-support base (4) at a position opposite to the U-shaped positioning groove (41).

6. The manual positioning mechanism for small parts for welding according to claim 5, characterized in that: The proximity switch (7) is connected to the double support base (4) via a proximity switch mounting plate (6).

7. The manual positioning mechanism for small parts for welding according to claim 1, characterized in that: A spring fixing connector (2) is fixedly connected to the bottom of the double support base (4), and the spring assembly (9) is located between the spring fixing connector (2) and the double support base (4).

8. The manual positioning mechanism for small parts for welding according to claim 7, characterized in that: The spring assembly (9) comprises a compression spring and a guide bolt, wherein both ends of the guide bolt are respectively connected to the spring fixing connector (2) and the double support base (4), and the compression spring is sleeved inside the guide bolt.

9. The manual positioning mechanism for small parts for welding according to claim 8, characterized in that: The rotating pressure rod (3) is provided with a waist-shaped hole (33), the guide bolt passes through the waist-shaped hole (33) and is fixedly connected to the spring fixing connector (2), and the compression spring is located between the rotating pressure rod (3) and the double support base (4).

10. The manual positioning mechanism for small parts for welding according to claim 1, characterized in that: A plurality of connecting plates (1) are fixedly connected to the lower end of the double support base (4).

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