CNC (computer numerical control) special clamp device for medium-large battery box for new energy vehicle

Abstract

The utility model discloses a CNC special fixture device for a medium-large size battery box for a new energy vehicle, which comprises a base plate and a battery box assembly part, a driving pair and a driven pair are respectively arranged on opposite sides of the base plate, an auxiliary clamping mechanism and a main clamping mechanism are arranged on one side, adjacent to the driving pair and the driven pair, of the base plate, and the auxiliary clamping mechanism and the main clamping mechanism are arranged on the base plate. An auxiliary clamping mechanism and a main clamping mechanism are arranged close to the driving pair and the driven pair; the auxiliary clamping mechanism comprises a side pushing cylinder and a first rotating cylinder. The main clamping mechanism comprises a second rotating cylinder, the clamping position of a machining clamp and the grabbing position of an automatic gripper are comprehensively considered, part of interference machining hole positions are adjusted to an aluminum profile to be machined, and finally machining of a battery box product is achieved.

Description

Technical Field

[0001] The utility model relates to the field of CNC special clamps for medium and large battery boxes for new energy vehicles, and specifically to a CNC special clamp device for medium and large battery boxes for new energy vehicles. Background Art

[0002] For battery box frames measuring approximately 2m x 1.6m in length and width, it's generally necessary to select a CNC machine with the appropriate stroke and develop a dedicated fixture to complete the machining process. Currently, mainstream medium and large battery boxes are available in both lithium iron phosphate and ternary lithium formats. They require machining of eight surfaces and eight holes on both sides, requiring fixtures for secure positioning.

[0003] Therefore, a CNC special clamping device for medium and large battery boxes for new energy vehicles was invented to solve the above problems. Summary of the Invention

[0004] The purpose of the utility model is to solve the deficiencies of the existing technology and provide a CNC special clamp device for medium and large battery boxes for new energy vehicles.

[0005] The utility model is realized through the following technical solutions:

[0006] A CNC-specific fixture device for medium-to-large battery boxes for new energy vehicles includes a base plate and a battery box assembly. An active pair and a driven pair are provided on opposite sides of the base plate, respectively. An auxiliary clamping mechanism and a main clamping mechanism are provided on the side of the base plate adjacent to the active and driven pairs. The active and driven pairs are adjacent to the auxiliary clamping mechanism and the main clamping mechanism.

[0007] Wherein, the auxiliary clamping mechanism includes a side push cylinder and a No. 1 rotary cylinder; the main clamping mechanism includes a No. 2 rotary cylinder.

[0008] Preferably, the side thrust cylinders are respectively located vertically and parallel to the four corners of the battery box assembly parts.

[0009] Preferably, the number of the No. 1 rotating cylinder is 13, of which 2 are located on the No. 1 vertical side of the battery box assembly part, 2 are located on the No. 2 vertical side of the battery box assembly part, 2 are located on the No. 1 horizontal side of the battery box assembly part, 3 are located on the No. 5 horizontal side of the battery box assembly part, 3 are located between the No. 5 horizontal side and the No. 4 horizontal side, and are arranged close to the No. 4 horizontal side, and one is located between the No. 2 horizontal side and the No. 1 horizontal side, and is arranged close to the No. 2 horizontal side.

[0010] Preferably, the number of the No. 2 rotary cylinders is 3, 2 of which are located on the No. 1 horizontal side, and 1 is located on the No. 5 horizontal side, and is arranged close to the side push cylinder.

[0011] Preferably, the number of the side thrust cylinders is 8.

[0012] Preferably, the battery box assembly parts are provided with positioning pins 4 for processing and positioning the battery box.

[0013] Preferably, the battery box assembly parts include a No. 1 vertical side, a No. 2 vertical side, a No. 1 horizontal side, a No. 2 horizontal side, a No. 3 horizontal side, a No. 4 horizontal side, and a No. 5 horizontal side. The No. 1 vertical side, the No. 2 vertical side, the No. 1 horizontal side, and the No. 5 horizontal side are connected end to end, and the No. 2 horizontal side, the No. 3 horizontal side, and the No. 4 horizontal side are arranged in parallel and are perpendicular to the No. 1 vertical side and the No. 2 vertical side, respectively.

[0014] The beneficial effects of the utility model are:

[0015] Based on the three-dimensional digital simulation, common processing elements of the parts are selected, the clamping position of the machined fixture and the grasping position of the automated gripper are comprehensively considered, and some interfering processing holes are adjusted to the aluminum profile for processing. Finally, a set of fixtures can be used to complete the processing of different types of battery box products, saving the time of mold replacement and the cost of making molds for different products, and reducing quality problems caused by precision deviations that may be caused by mold changes. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is the usage state diagram of the utility model

[0017] Figure 2 It is a structural diagram of the present utility model. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0019] See also Figure 1-2 , the utility model provides a technical solution:

[0020] A CNC-specific fixture device for medium and large battery boxes for new energy vehicles includes a base plate 3 and a battery box assembly part 8. An active pair 1 and a driven pair 2 are respectively provided on opposite sides of the base plate 3. The base plate 3 can be selected according to the situation to provide an external power source or a built-in pressure oil circuit. It is used together with the active pair 1 and the driven pair 2 to install and fix the fourth-axis turntable of the machining equipment, and simultaneously realize the processing of the front and back sides of the battery box assembly part 8, that is, the functions of installing and fixing the turntable and processing the front and back sides of the battery box assembly part 8 are realized.

[0021] The substrate 3 is provided with an auxiliary clamping mechanism and a main clamping mechanism on one side adjacent to the active pair 1 and the driven pair 2. The active pair 1 and the driven pair 2 are adjacent to each other and are provided with an auxiliary clamping mechanism and a main clamping mechanism to clamp the battery box assembly part 8.

[0022] Among them, the auxiliary clamping mechanism includes side push cylinders 6, which are 8 in number, and No. 1 rotary cylinders 7, which are 13 in number; the main clamping mechanism includes No. 2 rotary cylinders 5, which are 3 in number. The side push cylinders 6, No. 1 rotary cylinders 7, and No. 2 rotary cylinders 5 are all purchased parts, which can realize the corresponding functions. They can be connected to an external power source or an internal power source. When set to an internal power source, they can include a cylinder base, a pressure oil circuit clamp and a copper pressure head, and can be assembled according to the conventional operating procedures.

[0023] The side push cylinders 6 are respectively located at the four corners of the battery box assembly part 8 and are placed perpendicularly and parallel to the four sides around the battery box assembly part 8.

[0024] There are 13 No. 1 rotating cylinders 7, of which 2 are located on the No. 1 vertical side 81 of the battery box assembly part 8, 2 are located on the No. 2 vertical side 82 of the battery box assembly part 8, 2 are located on the No. 1 horizontal side 83 of the battery box assembly part 8, 3 are located between the No. 5 horizontal side 87 and the No. 4 horizontal side 86, and are arranged close to the No. 4 horizontal side 86, and one is located between the No. 2 horizontal side 84 and the No. 1 horizontal side 83, and is arranged close to the No. 2 horizontal side 84.

[0025] There are three No. 2 rotary cylinders 5 , two of which are located on the No. 1 horizontal side 83 and one is located on the No. 5 horizontal side 87 , and are arranged close to the side thrust cylinder 6 .

[0026] The battery box assembly part 8 is provided with a positioning pin 4 for processing and positioning the battery box. The positioning points of different products are positioned by different positioning pins.

[0027] Working Principle: A CNC special fixture device for medium and large battery boxes for new energy vehicles, mainly used for welding machine processing and mounting hole processing of medium and large aluminum profile battery box frames.

[0028] The active pair 1 and the driven pair 2 on the device of the utility model are used for mounting the fourth axis turntable of the machining equipment to realize the processing of the front and back sides of the parts.

[0029] The base plate 3, serving as the main body of the fixture, ensures its strength and precision and houses an internal pressure oil circuit. Locating pins 4 facilitate the positioning of the battery case during machining. The auxiliary and main clamping mechanisms complete the machining and clamping of the part, minimizing vibration and ensuring machining accuracy. Each auxiliary and main clamping mechanism consists of a cylinder base, pressure oil circuit, a clamping cylinder (rotary or side-thrust), a clamp, and a copper indenter. Alternatively, an external power source is acceptable. By strategically arranging these mechanisms, different products can share the same fixture, with different positioning pins used to locate the positioning points of each product.

[0030] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A CNC special fixture device for medium and large battery boxes for new energy vehicles, comprising a base plate (3) and a battery box assembly part (8), characterized in that: An active pair (1) and a driven pair (2) are respectively provided on opposite sides of the substrate (3); an auxiliary clamping mechanism and a main clamping mechanism are provided on a side of the substrate (3) adjacent to the active pair (1) and the driven pair (2); and an auxiliary clamping mechanism and a main clamping mechanism are provided adjacent to the active pair (1) and the driven pair (2); Wherein, the auxiliary clamping mechanism comprises a side push cylinder (6) and a No. 1 rotary cylinder (7); and the main clamping mechanism comprises a No. 2 rotary cylinder (5).

2. The CNC special fixture device for medium and large battery boxes for new energy vehicles according to claim 1 is characterized in that: The side thrust cylinders (6) are respectively located at the four corners of the battery box assembly part (8) and are placed vertically and parallel to each other.

3. The CNC special fixture device for medium and large battery boxes for new energy vehicles according to claim 1 is characterized in that: The number of the No. 1 rotary cylinders (7) is 13, of which 2 are located on the No. 1 vertical side (81) of the battery box assembly part (8), 2 are located on the No. 2 vertical side (82) of the battery box assembly part (8), 2 are located on the No. 1 horizontal side (83) of the battery box assembly part (8), 3 are located on the No. 5 horizontal side (87) of the battery box assembly part (8), 3 are located between the No. 5 horizontal side (87) and the No. 4 horizontal side (86), and are arranged close to the No. 4 horizontal side (86), and one is located between the No. 2 horizontal side (84) and the No. 1 horizontal side (83), and is arranged close to the No. 2 horizontal side (84).

4. The CNC special fixture device for medium and large battery boxes for new energy vehicles according to claim 1 is characterized in that: The number of the second rotary cylinders (5) is three, two of which are located on the first horizontal side (83) and one is located on the fifth horizontal side (87), and is arranged close to the side push cylinder (6).

5. The CNC special fixture device for medium and large battery boxes for new energy vehicles according to claim 2 is characterized in that: The number of the side thrust cylinders (6) is 8.

6. The CNC special fixture device for medium and large battery boxes for new energy vehicles according to claim 1 is characterized in that: The battery box assembly part (8) is provided with a positioning pin (4) for processing and positioning the battery box.

7. The CNC special fixture device for medium and large battery boxes for new energy vehicles according to claim 1 is characterized in that: The battery box assembly part (8) includes a first vertical side (81), a second vertical side (82), a first horizontal side (83), a second horizontal side (84), a third horizontal side (85), a fourth horizontal side (86), and a fifth horizontal side (87). The first vertical side (81), the second vertical side (82), the first horizontal side (83), and the fifth horizontal side (87) are connected end to end. The second horizontal side (84), the third horizontal side (85), and the fourth horizontal side (86) are arranged in parallel and are respectively perpendicular to the first vertical side (81) and the second vertical side (82).

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