Punching and positioning tool for small-batch manufacturing of new energy automobile battery cases
By designing a drilling and positioning fixture that includes a tooling base plate, a drill jig, and a clamp, the problem of cumbersome hole position adjustment and large error in the small-batch production of new energy vehicle battery shells was solved, achieving fast and accurate hole position positioning and improving production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-28
- Publication Date
- 2026-03-31
AI Technical Summary
Existing technologies suffer from problems such as cumbersome hole position adjustment, large human error, and low efficiency in the small-batch production of battery casings for new energy vehicles. In particular, it is difficult to achieve efficient positioning and drilling when processing on non-dedicated tooling.
A drilling and positioning fixture comprising a base plate, a drill jig, a positioning plate, and a clamp is adopted. The drill jig on the base plate aligns with the hole position on the battery casing, and the positioning plate and clamp are used for rapid positioning and fixing, reducing manual measurement errors and improving the speed of hole adjustment.
It enables rapid and accurate positioning of holes in small-batch production of battery casings, reduces human error, and improves production efficiency and the speed of hole adjustment.
Smart Images
Figure CN224059223U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of new energy vehicle battery shell manufacturing technology, and in particular to a drilling and positioning tooling for small-batch manufacturing of new energy vehicle battery shells. Background Technology
[0002] With the development of the new energy vehicle industry, the requirements for the shell of new energy electric vehicles are becoming increasingly stringent. It is now common for the relative position of the sealing holes in the lower shell of the new energy battery shell to be 1~1.5mm. To meet this requirement, the battery shell processing technology requires the overall frame to be welded together before being assembled and machined on a large machine tool.
[0003] Mass production of new energy battery casings is carried out on specialized tooling. This specialized tooling has a complex structure, long design and manufacturing cycle, and high cost. It can only be used for specific products. When small-batch production of battery casings is required, it is not suitable to use specialized tooling. The existing hole drilling work for small-batch production of battery casings often uses a dial indicator to align the workpiece's direction and position. This method is prone to human error due to visual and operational unfamiliarity. In addition, there are many holes on the casing, and each hole needs to be re-aligned and adjusted, which is inefficient. Therefore, the industry needs a new type of drilling and positioning tooling for small-batch production of battery casings. Utility Model Content
[0004] The purpose of this utility model is to provide a drilling and positioning fixture for small-batch manufacturing of new energy vehicle battery shells, which can be used to quickly inspect whether a large number of threaded sleeves are missing.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A drilling and positioning fixture for small-batch manufacturing of battery casings for new energy vehicles includes a fixture base plate, a drill jig sleeve, positioning plates, and a clamp. Positioning plates are provided on all four peripheries of the fixture base plate, two on each side. The positioning plates are connected to the fixture base plate by bolts. Drill jig sleeves are provided on the fixture base plate, and the number and position of the drill jig sleeves correspond to the holes on the battery casing. The clamp is fixedly installed on the fixture base plate.
[0007] The aforementioned drilling and positioning fixture for small-batch manufacturing of new energy vehicle battery casings has an adjustment shim between the positioning plate and the fixture base plate.
[0008] The aforementioned drilling and positioning fixture for small-batch manufacturing of new energy vehicle battery casings has a sloping plate on the positioning plate.
[0009] The aforementioned drilling and positioning fixture for small-batch manufacturing of new energy vehicle battery casings has a hollowed-out base plate.
[0010] This utility model has the following advantages:
[0011] In this invention, when small-batch battery casing manufacturing is required, the invention is fastened onto the battery casing that needs to be drilled, a positioning plate is used for positioning, and a clamp is used to clamp the crossbeam on the battery casing for fastening and fixing. Drilling is performed according to the position of the drill die sleeve on the tooling base plate, which reduces the error of manual measurement, allows for multiple holes to be positioned at one time, reduces adjustment time, improves alignment speed, and greatly improves the efficiency of small-batch production. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the present invention;
[0013] Figure 2 for Figure 1 Enlarged view of a portion of point A in the middle;
[0014] Figure 3 This is a diagram showing the application and installation of this utility model on a battery casing;
[0015] The labels in the diagram represent: 1. Battery casing, 2. Tooling base plate, 3. Drill jig sleeve, 4. Positioning clamping plate, 5. Fixture, 6. Adjusting shim, 4-1. Clamping plate bevel. Detailed Implementation
[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0017] This utility model discloses a drilling and positioning fixture for small-batch manufacturing of new energy vehicle battery casings, such as... Figure 1 As shown, the fixture includes a base plate 2, drill jig sleeves 3, positioning clamping plates 4, and a fixture 5. Multiple drill jig sleeves 3 are mounted on the base plate 2, their number and position corresponding to the holes to be drilled on the battery casing. The drill jig sleeves 3 are removable and replaceable when worn. Positioning clamping plates 4 are located around the four perimeters of the base plate 2, two on each side, and are mounted on the base plate 2 using fastening bolts. The fixture 5 is mounted on the base plate 2 and clamps against the crossbeam on the battery casing to secure the fixture to the battery casing.
[0018] This utility model discloses a drilling and positioning fixture for small-batch manufacturing of battery casings for new energy vehicles. An adjusting shim 6 is provided between the positioning clamping plate 4 and the fixture base plate 2 to fine-tune the position of the holes. The positioning clamping plate 4 has a clamping bevel 4-1, which facilitates the use and installation of this utility model. The fixture base plate 2 is hollowed out, allowing for manual clamping of the fixture 5 at the hollowed-out area to clamp and fix this utility model to the crossbeam on the battery casing.
[0019] This utility model discloses a drilling and positioning fixture for small-batch manufacturing of battery casings for new energy vehicles. After the fixture is manufactured, a three-coordinate measuring machine (CMM) test is performed to ensure that the position of the holes is within acceptable limits. The base plate serves as a connector, the positioning clamp 4 limits the movement between the fixture and the battery casing 1, the clamp 5 ensures the fixture and battery casing 1 are pressed and fitted together, and the drilling sleeve guides the drilling process. All parts of the fixture are made of heat-treated steel to improve its strength and wear resistance. In use, the positioning clamp 4 limits the contact between the fixture and the sealing surface of the battery casing 1, the clamp 5 presses the fixture and battery casing 1 together, and the drilling sleeve guides the drilling of holes on the sealing surface.
Claims
1. A new energy automobile battery shell small batch manufacturing punching positioning tool, characterized in that: Including tool base plate (2), drill jig sleeve (3), positioning card board (4), clamp (5), four perimeters of tool base plate (2) are each provided with positioning card board (4), two on each side, positioning card board (4) is connected between tool base plate (2) by bolt, drill jig sleeve (3) is provided on tool base plate (2), the number and position of drill jig sleeve (3) correspond to the hole position on battery shell (1), clamp (5) is fixedly installed on tool base plate (2). 2. The small-batch manufacturing punching and positioning tool for a new energy vehicle battery case according to claim 1, characterized in that: Adjusting washer (6) is arranged between the positioning card board (4) and the tool base plate (2).
3. The small-batch manufacturing punching and positioning tool for a new energy vehicle battery case according to claim 1, characterized in that: The positioning card board (4) is provided with a card board inclined surface (4-1).
4. The small-batch manufacturing punching and positioning tool for a new energy vehicle battery case according to claim 2, characterized in that: The tool base plate (2) is in a hollow shape.