Pneumatic servo positioning mechanism

Abstract

The utility model discloses a pneumatic servo positioning mechanism, which belongs to the technical field of positioning devices, and comprises a bottom plate, a spot welding machine main body is arranged at the top of the bottom plate, a spot welding mechanism is arranged at the front part of the spot welding machine main body, and a supporting mechanism is arranged at the side part of the spot welding machine main body. A first servo air cylinder is fixedly installed on the front face of the spot welding machine body. In the utility model, the position of the L-shaped support is adjusted by utilizing the first servo cylinder, and the positions of the L-shaped bracket and the supporting block are adjusted by utilizing the second servo cylinder, so that the end part and one side of a workpiece are supported by the L-shaped support and the supporting block, and the workpiece is positioned by utilizing the inner side surfaces of the L-shaped support and the L-shaped bracket; the welding position of a workpiece can be quickly positioned between the upper spot welding electrode and the lower spot welding electrode during mass production, the consistency of the welding position is ensured, the working efficiency of spot welding can be improved, and the practicability is good.

Description

Technical Field

[0001] This utility model relates to the field of positioning device technology, and more specifically, to a pneumatic servo positioning mechanism. Background Technology

[0002] A spot welding machine is a mechanical device that employs the principle of double-sided, double-point overcurrent welding. During operation, two electrodes press against the workpiece, causing the two layers of metal to form a certain contact resistance under the pressure of the electrodes. When the welding current flows from one electrode to the other, an instantaneous heat fusion occurs at the two contact resistance points. The welding current also flows instantaneously from the other electrode along the two workpieces back to the first electrode, forming a circuit without damaging the internal structure of the workpiece. However, existing spot welding machines are inconvenient for positioning the workpiece during spot welding. When welding a large number of workpieces, it is difficult to ensure the uniformity of the welding position. Furthermore, when the workpiece is large, it is not convenient to provide auxiliary support, and manual support for welding is impractical. Therefore, we propose a pneumatic servo positioning mechanism. Utility Model Content

[0003] In view of the problems mentioned in the background art, the purpose of this utility model is to provide a pneumatic servo positioning mechanism.

[0004] To solve the above problems, the present invention adopts the following technical solution:

[0005] A pneumatic servo positioning mechanism includes a base plate, a spot welding machine body is mounted on the top of the base plate, a spot welding mechanism is mounted on the front of the spot welding machine body, a support mechanism is mounted on the side of the spot welding machine body, a first servo cylinder is fixedly mounted on the front of the spot welding machine body, an L-shaped support is fixedly connected to the output end of the first servo cylinder, a second servo cylinder is fixedly mounted on one side of the spot welding machine body, an L-shaped bracket is fixedly connected to the output end of the second servo cylinder, and a support block is fixedly connected to the side of the L-shaped bracket.

[0006] As a preferred embodiment of this utility model, the support mechanism includes a third servo cylinder fixedly installed on the other side of the spot welding machine body. The output end of the third servo cylinder is fixedly connected to a support base. A support shaft is fixedly sleeved on the front side of the support base. A support tube is rotatably connected to the outside of one end of the support shaft.

[0007] As a preferred embodiment of this utility model, the spot welding mechanism includes a mounting base fixedly connected to the front of the spot welding machine body and a lower mounting column fixedly connected to the front of the spot welding machine body. A lower spot welding electrode is fixedly mounted on the end of the lower mounting column. A telescopic cylinder is fixedly mounted on the mounting base. The output end of the telescopic cylinder extends to the bottom of the mounting base and is fixedly connected to an upper mounting column. An upper spot welding electrode is fixedly mounted on the upper mounting column. The upper spot welding electrode and the lower spot welding electrode are arranged coaxially.

[0008] As a preferred embodiment of this utility model, a control box is fixedly connected to the side of the spot welding machine body, a control panel is fixedly installed in the inner cavity of the control box, and a door is hinged to the outer side of the control box.

[0009] As a preferred embodiment of this utility model, two foot switches are provided on the top surface of the base plate.

[0010] In a preferred embodiment of this utility model, the top of the lower spot welding electrode is flush with the top surface of the support block, the L-shaped support, and the support tube, respectively.

[0011] Compared with existing technologies, the advantages of this utility model are:

[0012] (1) In this utility model, the position of the L-shaped support is adjusted by the first servo cylinder, and the position of the L-shaped bracket and the support block is adjusted by the second servo cylinder, so that the L-shaped support and the support block support the end and one side of the workpiece, and the inner side of the L-shaped support and the L-shaped bracket are used to position the workpiece, so that the welding point of the workpiece can be quickly positioned between the upper spot welding electrode and the lower spot welding electrode during mass production, ensuring the consistency of the welding position and improving the efficiency of spot welding.

[0013] (2) In this utility model, by using the third servo cylinder, support base, support shaft and support tube together, the support tube can support the workpiece being spot welded on the lower spot welding electrode, and the third servo cylinder can drive the support tube to move laterally, thereby changing the support position of the support tube, supporting workpieces of different sizes, and improving the working quality of the pneumatic servo positioning mechanism. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the internal structure of the control box of this utility model;

[0016] Figure 3 This is a schematic diagram of the structure of the L-shaped bracket of this utility model;

[0017] Figure 4 This is a schematic diagram of the support mechanism of this utility model.

[0018] Explanation of the labels in the diagram:

[0019] 1. Base plate; 2. Spot welding machine body; 3. Support mechanism; 4. First servo cylinder; 5. L-shaped support; 6. Second servo cylinder; 7. L-shaped bracket; 8. Support block; 9. Spot welding mechanism; 10. Third servo cylinder; 11. Support seat; 12. Support shaft; 13. Support tube; 14. Mounting seat; 15. Telescopic cylinder; 16. Upper mounting column; 17. Upper spot welding electrode; 18. Lower mounting column; 19. Lower spot welding electrode; 20. Control box; 21. Control panel; 22. Box door; 23. Foot switch. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0021] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] Example:

[0024] Please see Figure 1-4A pneumatic servo positioning mechanism includes a base plate 1, a spot welding machine body 2 on the top of the base plate 1, a spot welding mechanism 9 on the front of the spot welding machine body 2, a support mechanism 3 on the side of the spot welding machine body 2, a first servo cylinder 4 fixedly installed on the front of the spot welding machine body 2, an L-shaped support 5 fixedly connected to the output end of the first servo cylinder 4, a second servo cylinder 6 fixedly installed on one side of the spot welding machine body 2, an L-shaped bracket 7 fixedly connected to the output end of the second servo cylinder 6, and a support block 8 fixedly connected to the side of the L-shaped bracket 7.

[0025] In this embodiment, both the first servo cylinder 4 and the second servo cylinder 6 are provided with air pipe connectors at their tail ends to supply air to the first servo cylinder 4 and the second servo cylinder 6.

[0026] For details, please refer to Figure 1 and Figure 4 The support mechanism 3 includes a third servo cylinder 10 fixedly installed on the other side of the spot welding machine body 2. The output end of the third servo cylinder 10 is fixedly connected to a support base 11. A support shaft 12 is fixedly sleeved on the front of the support base 11. A support tube 13 is rotatably connected to the outside of one end of the support shaft 12.

[0027] In this embodiment, the tail end of the third servo cylinder 10 is provided with an air pipe connector to supply air to the third servo cylinder 10.

[0028] For details, please refer to Figure 1 The spot welding mechanism 9 includes a mounting base 14 fixedly connected to the front of the spot welding machine body 2 and a lower mounting column 18 fixedly connected to the front of the spot welding machine body 2. A lower spot welding electrode 19 is fixedly mounted on the end of the lower mounting column 18. A telescopic cylinder 15 is fixedly mounted on the mounting base 14. The output end of the telescopic cylinder 15 extends to the bottom of the mounting base 14 and is fixedly connected to an upper mounting column 16. An upper spot welding electrode 17 is fixedly mounted on the upper mounting column 16. The upper spot welding electrode 17 and the lower spot welding electrode 19 are arranged coaxially.

[0029] In this embodiment, the workpiece is welded by the cooperation of the upper spot welding electrode 17 and the lower spot welding electrode 19.

[0030] For details, please refer to Figure 1 and Figure 2 A control box 20 is fixedly connected to the side of the spot welding machine body 2. A control panel 21 is fixedly installed inside the control box 20. A door 22 is hinged to the outside of the control box 20.

[0031] For details, please refer to Figure 1 Two foot switches 23 are installed on the top surface of the base plate 1.

[0032] In this embodiment, the foot switch 23 is used to control the telescopic cylinder 15, the upper spot welding electrode 17, and the lower spot welding electrode 19.

[0033] For details, please refer to Figures 1 to 4 The top of the lower spot welding electrode 19 is flush with the top surface of the support block 8, the L-shaped support 5 and the support tube 13, respectively.

[0034] In this embodiment, the support block 8, L-shaped support 5 and support tube 13 are ensured to support the workpiece together, while the bottom surface of the workpiece and the top of the lower spot welding electrode 19 are in contact.

[0035] Working Principle: In use, first, place the workpiece to be welded on top of the lower spot welding electrode 19, ensuring the welding point on the workpiece is above the lower spot welding electrode 19 and below the upper spot welding electrode 17. Then, use the control panel 21 to control the external air pipe to introduce gas into the first servo cylinder 4. The gas drives the first servo cylinder 4 to move the L-shaped support 5, moving it below one end of the workpiece so that the end face of the workpiece is in contact with the inner surface of the L-shaped support 5. Next, activate the second servo cylinder 6 to move the L-shaped bracket 7 and the support block 8, moving the support block 8 below one side of the workpiece, simultaneously bringing the side of the L-shaped bracket 7 into contact with the side of the workpiece. L-shaped support 5 and L-shaped bracket 7 position the workpiece. In addition, the third servo cylinder 10 is activated to drive the support base 11, support shaft 12 and support tube 13 to move laterally. The support tube 13 supports the other side of the workpiece. Finally, the foot pedal switch 23 controls the telescopic cylinder 15 to move the upper mounting column 16 and the upper spot welding electrode 17 downward, so that the bottom end of the upper spot welding electrode 17 contacts the top surface of the workpiece, and the lower spot welding electrode 19 and the upper spot welding electrode 17 weld the workpiece. In addition, when welding a large number of workpieces, the L-shaped bracket 7 and L-shaped support 5 can be used to quickly position the workpieces, ensuring rapid welding and uniformity of the welding position.

[0036] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model based on the technical solution and its improved concept should be covered within the protection scope of the present utility model.

Claims

1. A pneumatic servo positioning mechanism, comprising a base plate (1), characterized in that: The top of the base plate (1) is provided with a spot welding machine body (2), the front of the spot welding machine body (2) is provided with a spot welding mechanism (9), the side of the spot welding machine body (2) is provided with a support mechanism (3), the front of the spot welding machine body (2) is fixedly installed with a first servo cylinder (4), the output end of the first servo cylinder (4) is fixedly connected with an L-shaped support (5), the side of the spot welding machine body (2) is fixedly installed with a second servo cylinder (6), the output end of the second servo cylinder (6) is fixedly connected with an L-shaped bracket (7), and the side of the L-shaped bracket (7) is fixedly connected with a support block (8).

2. The pneumatic servo positioning mechanism according to claim 1, characterized in that: The support mechanism (3) includes a third servo cylinder (10) fixedly installed on the other side of the spot welding machine body (2). The output end of the third servo cylinder (10) is fixedly connected to a support base (11). A support shaft (12) is fixedly sleeved on the front side of the support base (11). A support tube (13) is rotatably connected to the outside of one end of the support shaft (12).

3. The pneumatic servo positioning mechanism according to claim 2, characterized in that: The spot welding mechanism (9) includes a mounting base (14) fixedly connected to the front of the spot welding machine body (2) and a lower mounting column (18) fixedly connected to the front of the spot welding machine body (2). A lower spot welding electrode (19) is fixedly installed at the end of the lower mounting column (18). A telescopic cylinder (15) is fixedly installed on the mounting base (14). The output end of the telescopic cylinder (15) extends to the bottom of the mounting base (14) and is fixedly connected to an upper mounting column (16). An upper spot welding electrode (17) is fixedly installed on the upper mounting column (16). The upper spot welding electrode (17) and the lower spot welding electrode (19) are arranged coaxially.

4. The pneumatic servo positioning mechanism according to claim 1, characterized in that: A control box (20) is fixedly connected to the side of the spot welding machine body (2). A control panel (21) is fixedly installed in the inner cavity of the control box (20). A door (22) is hinged to the outside of the control box (20).

5. The pneumatic servo positioning mechanism according to claim 1, characterized in that: Two foot switches (23) are provided on the top surface of the base plate (1).

6. The pneumatic servo positioning mechanism according to claim 3, characterized in that: The top of the lower spot welding electrode (19) is flush with the top surfaces of the support block (8), the L-shaped support (5), and the support tube (13).

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