Welding positioning clamp for new energy automobile battery tray

Abstract

The invention discloses a new energy automobile battery tray welding positioning fixture which comprises a fixture base, a tray positioning mechanism, a tray pressing mechanism and a fixture switching mechanism, the fixture base is provided with the fixture positioning mechanism, the fixture positioning mechanism comprises an origin pin, and the fixture switching mechanism is connected with an external shaft cantilever in a welding work station. Meanwhile, other welding clamps can be switched or a work station can be replaced; an I / O box, a PLC box and an electromagnetic valve protection cover are distributed below the clamp base; the accurate positioning mechanism ensures that the battery tray is located at the correct position and angle, and welding accuracy is guaranteed. And meanwhile, the clamp can quickly and accurately position and fix the battery tray, the welding process is accelerated, and the production efficiency is improved. The pressing and positioning mechanism ensures that the battery tray is kept stable in the welding process, the welding quality problem caused by movement is avoided, the production efficiency and the product quality are improved, and actual economic benefits are brought to enterprises.

Description

Technical Field

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

[0002] At present, the material of the battery tray is aluminum alloy. Aluminum alloy has a large deformation during welding, which is prone to joint softening, pores and cracks. When welding the battery tray, in addition to considering the welding method and welding route, the most important thing to consider is the clamping mechanism and fixture form. By designing a reasonable clamping method, the deformation of aluminum alloy welding can be reduced, and the welding quality and efficiency can be improved. There are also flexible combination fixtures or fixture switching mechanisms that can be quickly adjusted according to the shape and size changes of different products to meet the production needs of small batches and multiple varieties. Summary of the invention

[0003] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a welding positioning fixture for a new energy vehicle 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 positioning fixture for a new energy vehicle battery tray, comprising:

[0006] It includes a fixture base, a pallet positioning mechanism, a pallet pressing mechanism and a fixture switching mechanism. The fixture base is provided with a fixture positioning mechanism, and the fixture positioning mechanism includes an origin pin, which is used as a reference point for the entire welding fixture. An I / O box, a PLC box and a solenoid valve protective cover are provided below the fixture base;

[0007] The pallet positioning mechanism is arranged above the fixture base, and the pallet positioning mechanism is used to position the workpiece to be welded;

[0008] The pallet clamping mechanism is arranged above the center of the fixture base, and the pallet clamping mechanism is used to clamp and fix the workpiece to be welded;

[0009] The clamp switching mechanism is arranged at two ends above the clamp base.

[0010] Furthermore, the fixture switching mechanism is also connected to an external shaft cantilever in the welding workstation, and the fixture switching mechanism is used to switch other welding fixtures or replace the workstation.

[0011] Furthermore, the pallet positioning mechanism ensures the positioning of the workpiece to be welded by two positioning modes: fixed positioning and double guide rod cylinder positioning.

[0012] Furthermore, the tray clamping mechanism includes a strong clamping mechanism, a three-axis clamping mechanism and a composite clamping mechanism.

[0013] Furthermore, the strong clamping mechanism includes a plurality of strong cylinders, and the plurality of strong cylinders are distributed around the battery tray workpiece and below the workpiece to be welded. The strong clamping mechanism is used to support the workpiece to be welded, clamp the workpiece, and prevent the workpiece from shifting.

[0014] Furthermore, the three-axis clamping mechanism includes a double guide rod cylinder, a spring, a pin rod and a connecting block. The three-axis clamping mechanism presses the workpiece to be welded from the positive direction through the double guide rod cylinder, and then clamps the workpiece to be welded through the spring, the pin rod and the connecting block.

[0015] Furthermore, the composite clamping mechanism includes a single guide rod mechanism, a connecting plate, a pressure block, a guide rail and a telescopic cylinder, the single guide rod mechanism is connected to the connecting plate, and interconnected guide rails and telescopic cylinders are arranged below the connecting plate, and a sensor is arranged on the connecting plate.

[0016] Furthermore, through the action of the telescopic cylinder, the connecting plate is pushed to move on the guide rail, and the sensor is used to detect whether it is clamped in place. An angle seat is provided above the connecting plate, and a clamping telescopic cylinder is provided at each end of the angle seat. The clamping telescopic cylinder is used to push the pressure block to clamp the workpiece.

[0017] Furthermore, the fixture switching mechanism includes two limit blocks, which are respectively connected to the active end and the driven end of the large rotation of the welding workstation to achieve rapid switching of the fixture. The fixture is installed on the large rotation of the welding workstation, and the fixture is driven to rotate and flip through the large rotation.

[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 that the battery tray is in the correct position and angle through a precise positioning mechanism, thereby ensuring the accuracy of welding. At the same time, the clamp can also quickly and accurately position and fix the battery tray, accelerate the welding process, and improve production efficiency. The clamping positioning mechanism ensures that the battery tray remains stable during the welding process, avoiding welding quality problems caused by movement, and can be moved to different work locations, thereby improving production efficiency and product quality, and also bringing practical economic benefits to the enterprise. 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 structural schematic diagram of the clamp positioning mechanism of the present invention.

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

[0025] In the figure: 1. Clamp base; 2. Pallet positioning mechanism; 3. Pallet clamping mechanism; 4. Clamp switching mechanism; 5. Solenoid valve protection cover; 6. Strong clamping mechanism; 7. Three-axis clamping mechanism; 8. PLC box; 9. Forklift slot. DETAILED DESCRIPTION

[0026] 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.

[0027] 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.

[0028] 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.

[0029] Implementation method:

[0030] See also Figure 1 and Figure 2 , including a fixture base 1, a pallet positioning mechanism 2, a pallet pressing mechanism 3 and a fixture switching mechanism 4, the fixture base 1 is provided with a fixture positioning mechanism 2, the fixture positioning mechanism 2 includes an origin pin, and the origin pin is used as a reference point for the entire welding fixture, and an I / O box, a PLC box 8 and a solenoid valve protective cover 5 are provided below the fixture base 1;

[0031] The pallet positioning mechanism 2 is arranged above the fixture base 1, and the pallet positioning mechanism 2 is used to position the workpiece to be welded;

[0032] The pallet clamping mechanism 3 is arranged above the center of the fixture base 1, and the pallet clamping mechanism 3 is used to clamp and fix the workpiece to be welded;

[0033] The fixture switching mechanism 4 is arranged at two ends above the fixture base 1 .

[0034] For further information, see Figure 4 The fixture switching mechanism 4 is also connected to the external shaft cantilever in the welding workstation, and the fixture switching mechanism 4 is used to switch other welding fixtures or replace the workstation.

[0035] For further information, see Figure 3 The pallet positioning mechanism 2 ensures the positioning of the workpiece to be welded by two positioning methods: fixed positioning and double guide rod cylinder positioning.

[0036] Furthermore, the tray clamping mechanism 3 includes a strong clamping mechanism 6, a three-axis clamping mechanism 7 and a composite clamping mechanism.

[0037] Furthermore, the strong clamping mechanism 6 includes a plurality of strong cylinders, which are distributed around the battery tray workpiece and below the workpiece to be welded. The strong clamping mechanism 6 is used to support the workpiece to be welded, clamp the workpiece, and prevent the workpiece from shifting.

[0038] The strong clamping mechanism 6 has a plurality of strong cylinders distributed around the battery tray workpiece, which act with the supporting mechanism below the workpiece to clamp the workpiece and prevent the workpiece from shifting.

[0039] Furthermore, the three-axis clamping mechanism 7 includes a double guide rod cylinder, a spring, a pin rod and a connecting block. The three-axis clamping mechanism presses the workpiece to be welded from the positive direction through the double guide rod cylinder, and then clamps the workpiece to be welded through the spring, the pin rod and the connecting block.

[0040] The three-axis clamping mechanism 7 is clamped from the positive direction by a double-guide-rod cylinder, and then a clamping mechanism is formed by a spring, a pin rod and a connecting block to clamp the workpiece.

[0041] Furthermore, the composite clamping mechanism includes a single guide rod mechanism, a connecting plate, a pressure block, a guide rail and a telescopic cylinder, the single guide rod mechanism is connected to the connecting plate, and interconnected guide rails and telescopic cylinders are arranged below the connecting plate, and a sensor is arranged on the connecting plate.

[0042] Furthermore, through the action of the telescopic cylinder, the connecting plate is pushed to move on the guide rail, and the sensor is used to detect whether it is clamped in place. An angle seat is provided above the connecting plate, and a clamping telescopic cylinder is provided at each end of the angle seat. The clamping telescopic cylinder is used to push the pressure block to clamp the workpiece.

[0043] The composite clamping mechanism uses a single guide rod mechanism in conjunction with a connecting plate. There is a guide rail under the connecting plate. The connecting plate is pushed to move on the guide rail through the action of the telescopic cylinder. A sensor is added on the connecting plate to detect whether it is clamped in place. There is an angle seat above the connecting plate. There is a telescopic cylinder at each end of the angle seat to push the pressure block (the connecting block connected to the telescopic cylinder and in contact with the workpiece is the pressure block) to clamp the workpiece.

[0044] Furthermore, the fixture switching mechanism includes two limit blocks, which are respectively connected to the active end and the driven end of the large rotation of the welding workstation to achieve rapid switching of the fixture. The fixture is installed on the large rotation of the welding workstation, and the fixture is driven to rotate and flip through the large rotation.

[0045] Furthermore, a forklift slot 9 is provided below the fixture base 1, and the forklift slot is used to move the welding positioning fixture to a corresponding work location with the help of a forklift.

[0046] 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 9 below the welding positioning fixture base 1 of the present invention, and the fixture is installed on the large rotation of the welding workstation by using the fixture switching mechanism 4. The large rotation and external axis of the workstation are flipped 45°, which is convenient for the staff to install the fixture (three-axis flipping is achieved through the large rotation). At the same time, the fixture switching mechanisms on both sides of the fixture are connected to the large rotation. Through this mechanism, other fixtures can be quickly switched and installed. After the fixture is installed, the workpiece to be welded is placed, and the workpiece is accurately placed according to the positioning of the pallet positioning mechanism 2. The safety door of the workstation is closed, and the start button is pressed. The pallet clamping mechanism 3 is activated to complete the clamping of the workpiece, and the welding robot starts welding. After welding is completed according to the predetermined welding trajectory, the clamping mechanism can be released to take out the workpiece.

[0047] 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 positioning fixture for a new energy vehicle battery tray, characterized in that: include: It includes a fixture base, a pallet positioning mechanism, a pallet pressing mechanism and a fixture switching mechanism. The fixture base is provided with a fixture positioning mechanism, and the fixture positioning mechanism includes an origin pin, which is used as a reference point for the entire welding fixture. An I / O box, a PLC box and a solenoid valve protective cover are provided below the fixture base; The pallet positioning mechanism is arranged above the fixture base, and the pallet positioning mechanism is used to position the workpiece to be welded; The pallet clamping mechanism is arranged above the center of the fixture base, and the pallet clamping mechanism is used to clamp and fix the workpiece to be welded; The clamp switching mechanism is arranged at two ends above the clamp base.

2. A welding positioning fixture for a new energy vehicle battery tray as claimed in claim 1, characterized in that: The fixture switching mechanism is also connected to an external shaft cantilever in the welding workstation, and the fixture switching mechanism is used to switch other welding fixtures or replace the workstation.

3. A welding positioning fixture for a new energy vehicle battery tray as claimed in claim 1, characterized in that: The pallet positioning mechanism ensures the positioning of the workpiece to be welded by two positioning modes: fixed positioning and double guide rod cylinder positioning.

4. A welding positioning fixture for a new energy vehicle battery tray as claimed in claim 1, characterized in that: The tray clamping mechanism comprises a strong clamping mechanism, a three-axis clamping mechanism and a composite clamping mechanism.

5. A welding positioning fixture for a battery tray of a new energy vehicle as claimed in claim 4, characterized in that: The strong clamping mechanism includes a plurality of strong cylinders, which are distributed around the battery tray workpiece and below the workpiece to be welded. The strong clamping mechanism is used to support the workpiece to be welded, clamp the workpiece, and prevent the workpiece from shifting.

6. A welding positioning fixture for a new energy vehicle battery tray as claimed in claim 4, characterized in that: The three-axis clamping mechanism comprises a double-guide-rod cylinder, a spring, a pin rod and a connecting block. The three-axis clamping mechanism presses the workpiece to be welded from the positive direction by the double-guide-rod cylinder, and then clamps the workpiece to be welded by the spring, the pin rod and the connecting block.

7. A welding positioning fixture for a battery tray of a new energy vehicle as claimed in claim 4, characterized in that: The composite clamping mechanism comprises a single guide rod mechanism, a connecting plate, a pressure block, a guide rail and a telescopic cylinder. The single guide rod mechanism is connected to the connecting plate. The connecting plate is provided with mutually connected guide rails and a telescopic cylinder below. The connecting plate is provided with a sensor.

8. A welding positioning fixture for a battery tray of a new energy vehicle as claimed in claim 7, characterized in that: The connecting plate is pushed to move on the guide rail through the action of the telescopic cylinder, and whether it is clamped in place is detected by the sensor. An angle seat is provided above the connecting plate, and a clamping telescopic cylinder is provided at each end of the angle seat. The clamping telescopic cylinder is used to push the pressure block to clamp the workpiece.

9. A welding positioning fixture for a new energy vehicle battery tray as claimed in claim 1, characterized in that: The fixture switching mechanism includes two limit blocks, which are respectively connected to the active end and the driven end of the large rotation of the welding workstation to achieve rapid switching of the fixture. The fixture is installed on the large rotation of the welding workstation, and the fixture is driven to rotate and flip through the large rotation.

10. A welding positioning fixture for a new energy vehicle 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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