Fixing mechanism for single spot welding machine

Abstract

The utility model discloses a single spot welding machine fixing mechanism which comprises a spot welding machine body, an upper supporting arm is fixed on the spot welding machine body, a hydraulic cylinder is installed on the upper supporting arm, an upper electrode is connected to the output end of the hydraulic cylinder, a lower supporting arm is fixed on the spot welding machine body, the lower supporting arm is located under the upper supporting arm, and the upper electrode is connected to the output end of the hydraulic cylinder. A lower electrode is fixed to the upper side of the lower supporting arm, and a movable base is arranged on the lower side of the lower supporting arm. The fixing mechanism of the single spot welding machine is provided with the telescopic main movable arm and the telescopic auxiliary movable arm, the supporting size of a workpiece is changed, the fixing mechanism can be suitable for workpieces of different sizes, meanwhile, the limiting rod with the position capable of being adjusted is arranged on the movable connecting rod, the workpieces of different sizes can be fixed, and the working efficiency is improved. And it is guaranteed that electric welding work of workpieces of different sizes is conducted stably, the applicability of the fixing mechanism is effectively improved, and the use value of the fixing mechanism is improved.

Description

Technical Field

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

[0002] Spot welding machines are common welding equipment widely used in the metal products industry. The working principle of a spot welding machine is mainly to use the high-temperature electric arc generated when the positive and negative electrodes are momentarily short-circuited to melt the materials to be welded between the electrodes, thereby achieving the purpose of bonding them together.

[0003] The most common application of a single spot welding machine is spot welding of metal sheets. Since the workpieces being welded usually have a certain size and the spot welding area is relatively small, a fixing mechanism needs to be set on the spot welding machine to ensure that the workpieces can be welded stably.

[0004] Currently, there are still some problems with the fixing mechanism of spot welding machines. Some fixing mechanisms have poor applicability and cannot effectively fix workpieces of different sizes, thus making it difficult to guarantee the quality of welding work. Some spot welding machines need to spot weld workpieces at different angles, but conventional fixing mechanisms are not convenient for fixing workpieces at different angles. Therefore, we have proposed a fixing mechanism for a single spot welding machine to solve the problems mentioned above. Utility Model Content

[0005] The purpose of this utility model is to provide a fixing mechanism for a single spot welding machine, so as to solve the problems mentioned in the background art, such as the poor applicability of the fixing mechanisms of spot welding machines on the market and the inconvenience of fixing workpieces at different angles.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a fixing mechanism for a single spot welding machine, comprising a spot welding machine body, an upper support arm fixed to the spot welding machine body, a hydraulic cylinder mounted on the upper support arm, an upper electrode connected to the output end of the hydraulic cylinder, a lower support arm fixed to the spot welding machine body, the lower support arm being located directly below the upper support arm, a lower electrode fixed to the upper side of the lower support arm, a movable seat provided on the lower side of the lower support arm, a displacement component for moving the movable seat at the lower side of the lower support arm at the end of the lower support arm, a main movable arm connected below the movable seat, the main movable arm forming a rotating structure on the movable seat via bearings, an auxiliary movable arm mounted on the main movable arm, the auxiliary movable arm forming a telescopic structure on the main movable arm, a support component for supporting the workpiece provided on both the main movable arm and the auxiliary movable arm, and a limiting component for limiting the workpiece on the support component.

[0007] Preferably, the lower electrode is elongated on the lower support arm, with the same length as the lower support arm. The lower electrode is located directly below the upper electrode and protrudes from the upper side of the lower support arm.

[0008] Preferably, the displacement assembly includes a screw and a rotating handle. The screw is installed on the outer end of the lower support arm, and the lower support arm is threadedly connected to the screw. The rotating handle is fixed to the outer end of the screw.

[0009] Preferably, the inner end of the screw is rotatably connected to the movable seat, and the movable seat forms a movable structure on the lower side of the lower support arm via the screw.

[0010] Preferably, the support assembly includes movable connecting rods, all of which are fixed to the ends of the main movable arm and the auxiliary movable arm.

[0011] Preferably, the upper sides of the movable connecting rods on the main movable arm and the auxiliary movable arm are both flush with each other, and the upper side of the movable connecting rod is also flush with the upper side of the lower support arm.

[0012] Preferably, the limiting component includes a limiting rod, which is inserted into a groove on the upper side of the movable connecting rod, and the limiting rod forms a movable structure in the groove on the upper side of the movable connecting rod.

[0013] Preferably, fixing bolts are installed on the lower sides of both ends of the movable connecting rod, and the position of the limiting rod on the movable connecting rod is fixed by the fixing bolts.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] (1) The single spot welding machine fixing mechanism is equipped with a telescopic main movable arm and a secondary movable arm to change the support size of the workpiece, so that the fixing mechanism can be used for workpieces of different sizes. At the same time, a position-adjustable limit rod is provided on the movable connecting rod, which can fix workpieces of different sizes, ensure the stable operation of electric welding of workpieces of different sizes, effectively increase the applicability of the fixing mechanism and improve the use value of the fixing mechanism.

[0016] (2) The main movable arm of the fixed mechanism of the single spot welding machine can rotate on the movable seat below the lower support arm, thereby changing the support position of the workpiece to use fixed work in different positions, so as to facilitate the workpiece to be welded at different angles and improve the performance of the fixed mechanism. At the same time, the position of the movable seat can be controlled by the screw to move the position of the main movable arm, realize the translation of the workpiece welding position, assist the welding displacement, so as to facilitate the quick and stable completion of spot welding work and ensure the quality of spot welding work. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2This is a schematic diagram of the orientation adjustment structure of the fixing mechanism of this utility model;

[0019] Figure 3 This is a schematic cross-sectional view of the lower support arm of this utility model;

[0020] Figure 4 This is a schematic cross-sectional view of the lower support arm of this utility model;

[0021] Figure 5 This is a cross-sectional view of the main movable arm and the auxiliary movable arm of this utility model;

[0022] Figure 6 This is a cross-sectional view of the movable connecting rod of this utility model.

[0023] In the diagram: 1. Spot welding machine body; 2. Upper support arm; 3. Hydraulic cylinder; 4. Upper electrode; 5. Lower support arm; 6. Lower electrode; 7. Screw; 8. Rotating handle; 9. Main movable arm; 10. Auxiliary movable arm; 11. Moving connecting rod; 12. Limiting rod; 13. Moving seat; 14. Fixing bolt; 15. Bearing. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1-6 This utility model provides a technical solution: a fixing mechanism for a single spot welding machine, including a spot welding machine body 1, an upper support arm 2 fixed on the spot welding machine body 1, a hydraulic cylinder 3 installed on the upper support arm 2, an upper electrode 4 connected to the output end of the hydraulic cylinder 3, a lower support arm 5 fixed on the spot welding machine body 1, the lower support arm 5 being located directly below the upper support arm 2, and a lower electrode 6 fixed on the upper side of the lower support arm 5.

[0026] Furthermore, the lower electrode 6 is elongated on the lower support arm 5, with the same length as the lower support arm 5. The lower electrode 6 is located directly below the upper electrode 4, and the lower electrode 6 protrudes from the upper side of the lower support arm 5, which can ensure full contact between the workpiece and the lower electrode 6, so as to ensure the normal operation of spot welding.

[0027] A movable seat 13 is provided on the lower side of the lower support arm 5, and a displacement component for moving the movable seat 13 at the lower side of the lower support arm 5 is provided at the end of the lower support arm 5.

[0028] Furthermore, the displacement assembly includes a screw 7 and a rotating handle 8. The screw 7 is installed on the outer end of the lower support arm 5, and the lower support arm 5 is threadedly connected to the screw 7. The outer end of the screw 7 is fixed with a rotating handle 8, which facilitates the control of the screw 7 to move on the lower support arm 5 by rotating the handle 8.

[0029] Furthermore, the inner end of the screw 7 is rotatably connected to the movable seat 13, and the movable seat 13 forms a movable structure on the lower side of the lower support arm 5 through the screw 7, ensuring that the movable seat 13 can move stably.

[0030] A main movable arm 9 is connected below the movable base 13. The main movable arm 9 forms a rotating structure on the movable base 13 through the bearing 15, which can change the orientation of the workpiece support to realize workpiece welding at different angles and improve the working performance of the fixing mechanism. The rotation of the main movable arm 9 on the movable base 13 can be set to have a damping effect to ensure that the main movable arm 9 is stable after rotation and to achieve stable support for the workpiece. An auxiliary movable arm 10 is installed on the main movable arm 9. The auxiliary movable arm 10 forms a telescopic structure on the main movable arm 9, which can adjust the support size of the workpiece to facilitate application to workpieces of different sizes and increase the applicability of the fixing mechanism.

[0031] Both the main movable arm 9 and the auxiliary movable arm 10 are equipped with support components for supporting the workpiece, and the support components are also equipped with limiting components for limiting the workpiece.

[0032] Furthermore, the support assembly includes movable connecting rods 11, which are fixed to the ends of the main movable arm 9 and the auxiliary movable arm 10, thereby improving the stability of the workpiece support.

[0033] Furthermore, the upper sides of the movable connecting rods 11 on the main movable arm 9 and the auxiliary movable arm 10 are both flush with each other, and the upper side of the movable connecting rods 11 is also flush with the upper side of the lower support arm 5, ensuring that the workpiece is placed stably, thereby facilitating the stability of the welding position.

[0034] Furthermore, the limiting component includes a limiting rod 12, which is inserted into a groove on the upper side of the movable connecting rod 11. The limiting rod 12 forms a movable structure in the groove on the upper side of the movable connecting rod 11, and the position of the limiting rod 12 can be adjusted so that it can fix workpieces of different sizes, thereby improving the applicability of the fixing mechanism.

[0035] Furthermore, fixing bolts 14 are installed on the lower sides of both ends of the movable connecting rod 11. The position of the limiting rod 12 on the movable connecting rod 11 is fixed by the fixing bolts 14, ensuring the stability of the limiting rod 12 and thus improving the stability of the fixing mechanism for the workpiece. At the same time, the limiting rod 12 can be disassembled and installed on the movable connecting rod 11. By adjusting the direction of the limiting rod 12, the fixing size range of the limiting rod 12 can be widened. The limiting rod 12 can also be replaced so that the clamp on it can be used for different workpieces, thus improving the applicability of the fixing mechanism.

[0036] Working principle: When using the fixing mechanism of this single spot welding machine, first adjust the working dimensions of the fixing mechanism according to the length and width of the workpiece. First, stretch the auxiliary movable arm 10 on the main movable arm 9 according to the length of the workpiece, change the combined length of the main movable arm 9 and the auxiliary movable arm 10, so that the support of the workpiece can be adapted to the length of the workpiece, and ensure the stability of the support state of the workpiece.

[0037] Then, based on the width of the workpiece, adjust the position of the limiting rod 12 on the moving connecting rod 11. The direction of the limiting rod 12 on the moving connecting rod 11 can be adjusted to make the fixed working size range of the limiting rod 12 wider and the applicability stronger. The limiting rod 12 can also be replaced so that the clamp on the limiting rod 12 can be used for workpieces of different thicknesses. After the fixed position of the limiting rod 12 is determined, the position of the limiting rod 12 on the moving connecting rod 11 is fixed by the fixing bolt 14 to ensure the stability of the workpiece.

[0038] Once the workpiece is fixed, if welding work is to be performed at different angles, the main movable arm 9 can be rotated directly to change the orientation of the workpiece, thereby changing the angle of the docking position of the two workpieces and enabling welding work at different angles for different workpieces.

[0039] After the welding position is determined, the upper electrode 4 is pressed down by the hydraulic cylinder 3. The upper electrode 4 presses the workpiece tightly onto the lower electrode 6 on the lower support arm 5, completing the spot welding of the workpiece. Then, the screw 7 is rotated by turning the handle 8. The screw 7 moves on the lower support arm 5. By adjusting the position of the moving seat 13, the position of the main moving arm 9 can be changed, thereby driving the workpiece to adjust its position. This facilitates a stable change in the spot welding position of the workpiece and ensures that the spot welding work is completed normally and efficiently.

[0040] The above completes the workpiece fixing spot welding work, and all contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0041] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A fixing mechanism for a single spot welding machine, comprising a spot welding machine body (1), characterized in that: An upper support arm (2) is fixed on the spot welding machine body (1). A hydraulic cylinder (3) is installed on the upper support arm (2). An upper electrode (4) is connected to the output end of the hydraulic cylinder (3). A lower support arm (5) is fixed on the spot welding machine body (1). The lower support arm (5) is located directly below the upper support arm (2). A lower electrode (6) is fixed on the upper side of the lower support arm (5). A movable seat (13) is provided on the lower side of the lower support arm (5), and a displacement component for the movable seat (13) to move on the lower side of the lower support arm (5) is provided at the end of the lower support arm (5). A main movable arm (9) is connected below the movable seat (13). The main movable arm (9) forms a rotating structure on the movable seat (13) through a bearing (15). A secondary movable arm (10) is installed on the main movable arm (9). The secondary movable arm (10) forms a telescopic structure on the main movable arm (9). Both the main movable arm (9) and the secondary movable arm (10) are provided with support components for supporting the workpiece. The support components are also provided with limiting components for limiting the workpiece.

2. The fixing mechanism for a single spot welding machine according to claim 1, characterized in that: The lower electrode (6) is elongated on the lower support arm (5) and has the same length as the lower support arm (5). The lower electrode (6) is located directly below the upper electrode (4) and protrudes from the upper side of the lower support arm (5).

3. The fixing mechanism for a single spot welding machine according to claim 1, characterized in that: The displacement assembly includes a screw (7) and a rotating handle (8). The screw (7) is installed on the outer end of the lower support arm (5), and the lower support arm (5) is threadedly connected to the screw (7). The rotating handle (8) is fixed to the outer end of the screw (7).

4. The fixing mechanism for a single spot welding machine according to claim 3, characterized in that: The inner end of the screw (7) is rotatably connected to the movable seat (13), and the movable seat (13) forms a movable structure on the lower side of the lower support arm (5) through the screw (7).

5. The fixing mechanism for a single spot welding machine according to claim 1, characterized in that: The support assembly includes movable connecting rods (11), which are all fixed to the ends of the main movable arm (9) and the auxiliary movable arm (10).

6. The fixing mechanism for a single spot welding machine according to claim 5, characterized in that: The upper sides of the movable connecting rods (11) on the main movable arm (9) and the auxiliary movable arm (10) are both flush with each other, and the upper side of the movable connecting rods (11) is also flush with the upper side of the lower support arm (5).

7. A fixing mechanism for a single spot welding machine according to claim 5, characterized in that: The limiting component includes a limiting rod (12), which is inserted into a groove on the upper side of the movable connecting rod (11). The limiting rod (12) forms a movable structure in the groove on the upper side of the movable connecting rod (11).

8. A fixing mechanism for a single spot welding machine according to claim 7, characterized in that: Fixing bolts (14) are installed on the lower sides of both ends of the movable connecting rod (11), and the position of the limiting rod (12) on the movable connecting rod (11) is fixed by the fixing bolts (14).

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