Welding fixture for battery tray

Abstract

The welding fixture comprises a fixture base, a fixture positioning mechanism, a movable clamping mechanism and a fixture switching mechanism, the fixture positioning mechanism comprises an origin pin, a pressing arm and a pressing block, the pressing arm is connected to the fixture base and is adjusted according to the shape and size of a workpiece beam arm, and the pressing block is installed on the pressing arm; according to the battery tray welding clamp, through the rapid and accurate positioning function, the welding precision of the battery tray and the accuracy in the assembling process are ensured, the overall quality of a product to be welded is efficiently improved, rework and the rejection rate are reduced, and the production efficiency is improved. And the method plays a crucial role in improving the production automation level, reducing the cost and guaranteeing the product quality.

Description

Technical Field

[0001] The invention relates to the technical field of automated clamping mechanisms, and in particular to a welding fixture for a battery tray. Background Art

[0002] At present, when welding battery trays, the fixture uses multiple clamping devices to clamp the workpiece together. The structure is relatively complex, and the fixation of components such as welding guns is still difficult to assemble. For example, when installing the clamping device, it interferes with the welding gun and the weld, and can only clamp workpieces of a single size. It is necessary to manually change the workpiece and perform manual welding on the blocked part of the welding gun, which wastes costs and cannot guarantee accuracy, making the scope of use of the welding fixture very limited. Summary of the invention

[0003] In view of the deficiencies in the prior art, an object of the present invention is to provide a welding fixture for a battery tray, which can achieve a high-precision and stable automated welding effect and has strong applicability.

[0004] The purpose of the present invention is achieved by the following technical solutions:

[0005] A welding fixture for a battery tray, comprising:

[0006] It includes a fixture base, a fixture positioning mechanism, a mobile clamping mechanism and a fixture switching mechanism, wherein the fixture positioning mechanism includes an origin pin, a pressure arm and a pressure block, wherein the origin pin is used to establish a reference point of the entire welding fixture; wherein the pressure arm is connected to the fixture base, the pressure arm is used to adjust the shape and size of the workpiece beam arm, and the pressure block is installed on the pressure arm;

[0007] The fixture switching mechanism is arranged at two ends above the fixture base, and the number of the fixture switching mechanisms is 2. The fixture switching mechanism is used to realize rapid switching between different fixtures to improve welding production efficiency;

[0008] The number of the movable clamping mechanisms is 2, which are respectively arranged at the front and rear ends above the clamp base and located between the two clamp switching mechanisms. The two clamp switching mechanisms are used to cooperate with the clamp positioning mechanism to achieve accurate positioning of the workpiece to be welded;

[0009] An I / O box, a PLC box and a solenoid valve protection cover are also arranged above the fixture base.

[0010] Furthermore, the fixture switching mechanism includes a positioning pin and a limit block.

[0011] Furthermore, the positioning pin is connected to the external shaft cantilever of the welding workstation, and the positioning pin is used to achieve precise positioning during the fixture switching process.

[0012] Furthermore, the limit block is closely connected to the large rotary master and slave ends of the welding workstation, and the limit block is used to limit the movement range of the fixture during the switching process to prevent misoperation.

[0013] Furthermore, the cantilever is connected to the fixture base and the external shaft of the welding workstation respectively, and the cantilever is used to realize the linkage operation of the fixture switching mechanism and the welding workstation.

[0014] Furthermore, the two movable clamping mechanisms are respectively used to fix the front beam end of the workpiece to be welded and the rear beam end of the workpiece to be welded.

[0015] Furthermore, the mobile clamping mechanism includes a double-guide rod telescopic cylinder, a connecting plate, a guide rail, a telescopic cylinder and an integrated sensor.

[0016] Furthermore, the double-guide rod telescopic cylinder is connected to a connecting plate, and mutually connected guide rails and telescopic cylinders are arranged below the connecting plate. An integrated sensor is arranged on the connecting plate, and the telescopic cylinder is also connected to a supporting and pressing block.

[0017] Furthermore, the double guide rod telescopic cylinder pushes the connecting plate to move smoothly along the guide rail, and pushes the supporting block to evenly and reliably press the battery tray workpiece; at the same time, the integrated sensor monitors the clamping force to ensure that the workpiece is firmly fixed in the vertical direction to prevent displacement during welding.

[0018] Furthermore, a forklift slot is provided below the fixture base, and the forklift slot is used to move the welding positioning fixture to a corresponding work location with the use of a forklift.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] The present invention ensures the precision of battery tray welding and accuracy in the assembly process through a fast and precise positioning function, thereby significantly improving production efficiency; the efficient operation of the fixture not only shortens the preparation time before welding, but also maintains the stability of the tray during welding through its clamping and positioning mechanism, effectively preventing welding quality problems that may occur due to tray movement; the battery tray welding fixture of the present invention effectively improves the overall quality of the product, reduces rework and scrap rate, and plays a vital role in improving the level of production automation, reducing costs and ensuring product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the present invention;

[0022] Figure 2 It is a top view schematic diagram of the present invention;

[0023] Figure 3 It is a side view schematic diagram of the present invention;

[0024] Figure 4 It is a structural schematic diagram of the clamp positioning mechanism of the present invention;

[0025] Figure 5 It is a schematic structural diagram of a movable clamping mechanism for fixing a front beam end of a workpiece according to the present invention;

[0026] Figure 6 It is a schematic structural diagram of the movable clamping mechanism of the rear beam end for fixing the workpiece according to the present invention.

[0027] In the figure: 1. Clamp base; 2. Clamp positioning mechanism; 3. Clamp switching mechanism; 4. Mobile clamping mechanism; 5. Forklift slot; 6. Solenoid valve protection cover; 7. PLC box. DETAILED DESCRIPTION

[0028] Below, the present invention is described in priority in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0029] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "horizontal", "vertical", "top", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0030] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be fixedly connected, detachably connected, or integrally connected; it can be mechanically connected or electrically connected; it can be directly connected, or indirectly connected through an intermediate medium, or it can be internally connected between two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] Implementation method:

[0032] See also Figure 1, comprising a fixture base 1, a fixture positioning mechanism 2, a mobile clamping mechanism 4 and a fixture switching mechanism 3, wherein the fixture positioning mechanism 2 comprises an origin pin, a pressure arm and a pressure block, wherein the origin pin is used to establish a reference point of the entire welding fixture; wherein the pressure arm is connected to the fixture base, the pressure arm is used to adjust the shape and size of the workpiece beam arm, and the pressure block is installed on the pressure arm;

[0033] The fixture switching mechanism 3 is arranged at both ends above the fixture base 1, and the number of the fixture switching mechanism 3 is 2. The fixture switching mechanism 3 is used to realize fast switching between different fixtures to improve welding production efficiency;

[0034] The number of the movable clamping mechanisms 4 is 2, which are respectively arranged at the front and rear ends above the clamp base 1 and between the two clamp switching mechanisms 3. The two clamp switching mechanisms 4 are used to cooperate with the clamp positioning mechanism 2 to achieve accurate positioning of the workpiece to be welded;

[0035] An I / O box, a PLC box and a solenoid valve protection cover are also arranged above the fixture base 1.

[0036] The fixture base 1 is equipped with a fixture positioning mechanism 2. With the built-in origin pin, the reference point of the entire welding fixture is established. The pressure arm and the pressure block of the fixture positioning mechanism 2 act together on the beam arm of the workpiece to be welded. The fixture switching mechanism 3 at both ends of the fixture base 1 enables the operator to quickly and efficiently switch between different fixtures, or change workstations when necessary.

[0037] On the upper part of the fixture base 01, an I / O box, a PLC box 7 and a solenoid valve protection cover 6 are also arranged.

[0038] Furthermore, the fixture switching mechanism 3 includes a positioning pin and a limit block.

[0039] Furthermore, the positioning pin is connected to the external shaft cantilever of the welding workstation, and the positioning pin is used to achieve precise positioning during the fixture switching process.

[0040] Furthermore, the limit block is closely connected to the large rotary master and slave ends of the welding workstation, and the limit block is used to limit the movement range of the fixture during the switching process to prevent misoperation.

[0041] Furthermore, the cantilever is connected to the fixture base 1 and the external shaft of the welding workstation respectively, and the cantilever is used to realize the linkage operation of the fixture switching mechanism 3 and the welding workstation.

[0042] The locating pin is connected to the external shaft cantilever of the welding workstation to ensure accurate positioning during the fixture switching process; the limit block is closely connected to the master and slave ends of the large rotation of the welding workstation to limit the movement range of the fixture during the switching process and prevent misoperation; the cantilever connects the fixture base 1 and the external shaft of the welding workstation to realize the linkage between the fixture switching mechanism and the welding workstation.

[0043] Furthermore, the two movable clamping mechanisms 4 are respectively used to fix the front beam end of the workpiece to be welded and the rear beam end of the workpiece to be welded.

[0044] Furthermore, the mobile clamping mechanism 4 includes a double-guide rod telescopic cylinder, a connecting plate, a guide rail, a telescopic cylinder and an integrated sensor.

[0045] Furthermore, the double-guide rod telescopic cylinder is connected to a connecting plate, and mutually connected guide rails and telescopic cylinders are arranged below the connecting plate. An integrated sensor is arranged on the connecting plate, and the telescopic cylinder is also connected to a supporting and pressing block.

[0046] Furthermore, the double guide rod telescopic cylinder pushes the connecting plate to move smoothly along the guide rail, and pushes the supporting block to evenly and reliably press the battery tray workpiece; at the same time, the integrated sensor monitors the clamping force to ensure that the workpiece is firmly fixed in the vertical direction to prevent displacement during welding.

[0047] The two mobile clamping mechanisms work together, and the mobile clamping mechanism at the front beam end that fixes the workpiece has strong spatial adaptability: in a space-constrained environment, the mobile clamping mechanism 4 can still complete the workpiece fixing operation. After the workpiece is in place, the mobile clamping mechanism 4 can avoid the weld and the welding gun, freeing up the necessary working space for the welding operation. The mobile clamping mechanism 4 at the rear beam end that fixes the workpiece achieves precise positioning of the workpiece through precise adjustment of the fixture positioning mechanism 2. Then the double guide rod telescopic cylinder pushes the connecting plate to move smoothly along the guide rail, and pushes the support block to evenly and reliably clamp the battery tray workpiece. At the same time, the integrated sensor monitors the clamping force to ensure that the workpiece is firmly fixed in the vertical direction and prevent displacement during welding. A square hole is left on the mechanism to ensure that the welding gun can pass smoothly and accurately reach the welding point.

[0048] The mobile clamping mechanism 4 located on the fixture base 1 can ensure the stability of the workpiece during the welding process. The rear beam end of the workpiece is precisely adjusted by the fixture positioning mechanism 2, and then fixed by the mobile clamping mechanism 4 that fixes the front beam end to achieve precise positioning of the workpiece. The mobile clamping mechanism 05 that fixes the rear beam end uses a double guide rod telescopic cylinder to push the connecting plate to move smoothly along the guide rail, thereby clamping the front beam end of the workpiece. The integrated sensor monitors the clamping force to prevent displacement during welding.

[0049] Furthermore, a forklift slot 5 is provided below the fixture base 1, and the forklift slot 5 is used to move the welding positioning fixture to a corresponding work location with the help of a forklift.

[0050] The working principle of the present invention is as follows: a forklift transports the welding positioning fixture of the present invention to the corresponding workstation through the forklift slot 5 below the base 1 of the battery tray welding fixture of the present invention, and then the battery tray is welded and firmly installed on the large rotary device of the welding workstation through the fixture switching mechanism 3. The device can realize the flexible upward flipping of the fixture on three different axes (X, Y, and Z axes) according to welding requirements. Then install the workpiece, use the fixture positioning mechanism 2 to ensure the accurate position of the workpiece, and then close the safety door of the workstation. After the start button is pressed, the mobile clamping mechanism 4 automatically moves to firmly clamp the workpiece, providing a stable welding environment for the welding robot. The welding robot performs efficient welding operations according to the pre-programmed trajectory. After welding is completed, the clamping mechanism automatically releases and takes out the workpiece.

[0051] The above-mentioned embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A welding fixture for a battery tray, characterized in that: include: It includes a fixture base, a fixture positioning mechanism, a mobile clamping mechanism and a fixture switching mechanism. The fixture positioning mechanism includes an origin pin, a pressure arm and a pressure block. The origin pin is used to establish a reference point for the entire welding fixture. The pressing arm is connected to the fixture base, the pressing arm is used to adjust the shape and size of the workpiece beam arm, and the pressing block is installed on the pressing arm; The fixture switching mechanism is arranged at two ends above the fixture base, and the number of the fixture switching mechanisms is 2. The fixture switching mechanism is used to realize rapid switching between different fixtures to improve welding production efficiency; The number of the movable clamping mechanisms is 2, which are respectively arranged at the front and rear ends above the clamp base and located between the two clamp switching mechanisms. The two clamp switching mechanisms are used to cooperate with the clamp positioning mechanism to achieve accurate positioning of the workpiece to be welded; An I / O box, a PLC box and a solenoid valve protection cover are also arranged above the fixture base.

2. A welding fixture for a battery tray as claimed in claim 1, characterized in that: The fixture switching mechanism includes a positioning pin and a limit block.

3. A welding fixture for a battery tray as claimed in claim 2, characterized in that: The positioning pin is connected to the external shaft cantilever of the welding workstation, and the positioning pin is used to achieve accurate positioning during the fixture switching process.

4. A welding fixture for a battery tray as claimed in claim 2, characterized in that: The limit block is closely connected to the large rotary master and slave ends of the welding workstation, and the limit block is used to limit the movement range of the fixture during the switching process to prevent misoperation.

5. A welding fixture for a battery tray as claimed in claim 2, characterized in that: The cantilever is connected to the fixture base and the external shaft of the welding workstation respectively, and the cantilever is used to realize the linkage work of the fixture switching mechanism and the welding workstation.

6. A welding fixture for a battery tray as claimed in claim 1, characterized in that: The two movable clamping mechanisms are respectively used for fixing the front beam end of the workpiece to be welded and the rear beam end of the workpiece to be welded.

7. A welding fixture for a battery tray as claimed in claim 1, characterized in that: The mobile clamping mechanism comprises a double-guide-rod telescopic cylinder, a connecting plate, a guide rail, a telescopic cylinder and an integrated sensor.

8. A welding fixture for a battery tray as claimed in claim 7, characterized in that: The double-guide-rod telescopic cylinder is connected to a connecting plate, a guide rail and a telescopic cylinder connected to each other are arranged below the connecting plate, an integrated sensor is arranged on the connecting plate, and the telescopic cylinder is also connected to a supporting and pressing block.

9. A welding fixture for a battery tray as claimed in claim 7, characterized in that: The double-guide rod telescopic cylinder pushes the connecting plate to move smoothly along the guide rail, and pushes the supporting block to evenly and reliably press the battery tray workpiece; at the same time, the integrated sensor monitors the clamping force to ensure that the workpiece is firmly fixed in the vertical direction to prevent displacement during welding.

10. A welding fixture for a battery tray as claimed in claim 1, characterized in that: A forklift slot is also provided below the fixture base, and the forklift slot is used to cooperate with a forklift to move the welding positioning fixture to a corresponding work location.

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