Milling fixture for automobile structural parts
The milling fixture, designed in collaboration with the clamping module and the positioner, enables parallel processing and loading/unloading of automotive structural parts, solving the problem of low efficiency of traditional fixtures and improving equipment utilization and processing efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YUFU INTELLIGENT TECH (SHANGHAI) CO LTD
- Filing Date
- 2025-06-05
- Publication Date
- 2026-06-12
AI Technical Summary
Traditional automotive structural component processing fixtures suffer from single-station design efficiency bottlenecks, resulting in high equipment idle rates and an inability to achieve parallel processing and loading/unloading operations, making it difficult to meet the cycle time requirements of mass production of new energy vehicles.
The milling fixture, which adopts a co-design of clamping module and positioner, enables parallel operation of machining and loading/unloading through symmetrically arranged clamping modules. The positioner is used to rotate and switch machining stations, and the detection module is used to pre-calibrate the reference surface, thereby shortening the machining cycle time.
It improved equipment utilization, reduced material change time, and increased milling efficiency, meeting the cycle time requirements of mass production of new energy vehicles.
Smart Images

Figure CN224347439U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of milling fixtures for automotive structural parts, and particularly to a milling fixture for automotive structural parts. Background Technology
[0002] In the continuous milling of structural components for new energy vehicles, such as door sill beams and chassis beams, traditional fixtures suffer from significant efficiency bottlenecks due to their single-station design. During machining, the machine must be stopped, disassembled, and re-clamped after each workpiece is completed, resulting in high equipment idle rates. Furthermore, the single-sided clamping mode cannot achieve parallel operations of machining and loading / unloading, leaving the positioner's rotation function idle. The equipment's potential is not fully utilized, making it difficult to meet the cycle time requirements of mass production of new energy vehicles and severely restricting the overall efficiency of the production line. Utility Model Content
[0003] According to an embodiment of this utility model, a milling fixture for automotive structural parts is provided, used for clamping workpieces such as sill beams or chassis beams of new energy vehicles to be milled, comprising:
[0004] Clamping module; The clamping module is used to clamp the workpiece.
[0005] The plate body has a clamping module installed on both sides;
[0006] The positioner is located at both ends of the plate and is used to drive the plate to rotate.
[0007] Furthermore, the clamping module includes:
[0008] The support assembly is set on the plate, and the support assembly and the plate form a receiving area for receiving the workpiece;
[0009] The clamping assembly is arranged adjacent to the support assembly and is used to clamp the workpiece in the receiving area.
[0010] Furthermore, the supporting components include:
[0011] The support is L-shaped, and the workpiece to be processed is placed on the L-shaped support.
[0012] A buffer block is placed at the end of the support to reduce the collision between the workpiece and the support.
[0013] Furthermore, the clamping component includes:
[0014] The first clamping mechanism is arranged adjacent to the support member and is used to clamp the workpiece supported on the support member.
[0015] A floating mechanism is provided in pairs with a first clamping mechanism. The floating mechanism abuts against one side of the workpiece, and the first clamping mechanism clamps the workpiece from the other side.
[0016] A limiting component is located at one end of the receiving area;
[0017] The second clamping mechanism is located at the other end of the receiving area and is used to clamp both ends of the workpiece.
[0018] When the workpiece is placed in the receiving area, one end of the workpiece rests against the limiting member, and the other end is connected to the output end of the second clamping mechanism.
[0019] Furthermore, the clamping assembly also includes a protective plate, which is disposed on the floating mechanism and has an initial height higher than that of the floating mechanism. The protective plate is used to protect the floating mechanism.
[0020] Furthermore, the first and second clamping mechanisms are ordinary cylinders, and the floating mechanism is a floating cylinder.
[0021] Furthermore, it also includes a detection module, which is used to determine the reference surface of the milled workpiece.
[0022] According to an embodiment of this utility model, the milling fixture for automotive structural parts achieves parallel operation of machining and loading / unloading through the coordinated design of the clamping module and the positioner rotation. The symmetrically arranged clamping modules on both sides of the plate allow for simultaneous workpiece replacement on the other side while milling on one side. The positioner drives the plate to rotate 180° to instantly switch machining positions, reducing traditional material changeover time and improving equipment utilization. The detection module pre-calibrates the reference surface of the newly clamped workpiece during machining, further shortening cycle time.
[0023] It should be understood that both the foregoing general description and the following detailed description are exemplary and intended to provide further illustration of the claimed technology. Attached Figure Description
[0024] Figure 1 This is a schematic diagram of the overall structure of a milling fixture for automotive structural parts according to an embodiment of the present utility model;
[0025] Figure 2 This is a schematic diagram of the clamping module of a milling fixture for automotive structural parts according to an embodiment of the present utility model;
[0026] Figure 3 This is a partial schematic diagram of a clamping module for a milling fixture for automotive structural parts according to an embodiment of the present invention, which holds a workpiece.
[0027] Figure 4This is another schematic diagram of a clamping module for a milling fixture for automotive structural parts according to an embodiment of the present invention, which is equipped with a workpiece.
[0028] Figure 5 This is a schematic diagram of the floating mechanism of a milling fixture for automotive structural parts according to an embodiment of the present invention. Detailed Implementation
[0029] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, further illustrating the present invention.
[0030] First, combine Figures 1-5 The present invention describes a milling fixture for automotive structural parts according to an embodiment of the present invention, which has a wide range of applications.
[0031] like Figure 1 As shown, the milling fixture for automotive structural parts of this utility model is used to clamp workpieces such as door sill beams or chassis beams of new energy vehicles to be milled, and includes: clamping module 1, plate 2 and positioner 3.
[0032] Specifically, such as Figure 1 As shown, clamping module 1 is used to clamp workpieces; a clamping module 1 is installed on each side of plate 2; positioner 3 is located at both ends of plate 2, and positioner 3 is used to drive plate 2 to rotate. In this embodiment, clamping modules 1 are symmetrically arranged on both sides of plate 2. When a workpiece is clamped on one side for milling, the other side can simultaneously complete the loading of a new workpiece or the unloading of a processed workpiece. After the positioner 3 drives plate 2 to rotate 180°, it can directly switch to the processing state of the clamped workpiece, saving material change time and improving milling efficiency.
[0033] Furthermore, such as Figure 2 As shown, the clamping module 1 includes a support component 11 and a clamping component 12; the support component 11 is disposed on the plate 2, and the support component 11 and the plate 2 form a receiving area for receiving the workpiece; the clamping component 12 is arranged adjacent to the support component 11, and the clamping component 12 is used to clamp the workpiece in the receiving area.
[0034] Furthermore, such as Figure 3 , 4 As shown, the support assembly 11 includes a support member 111 and a buffer block 112. The support member 111 is L-shaped, and the workpiece to be processed is placed on the L-shaped support member 111. The buffer block 112 is disposed at the end of the support member 111 to reduce the collision between the workpiece and the support member 111. In this embodiment, one side of the L-shaped support member 111 is vertically fixed to the plate 2, and the other side is parallel to the plate 2. The support member 111 and the plate 2 together form a receiving area for receiving the workpiece.
[0035] Furthermore, such as Figures 3-5As shown, the clamping assembly 12 includes: a first clamping mechanism 121, a floating mechanism 122, a limiting member 123, and a second clamping mechanism 124. The first clamping mechanism 121 is arranged adjacent to the support member 111 and is used to clamp the workpiece supported on the support member 111. In this embodiment, the output end of the first clamping mechanism 121 is connected to an L-shaped clamping member 1211. The first clamping mechanism 121 extends and retracts to drive the clamping member 1211 to clamp or release the workpiece. The floating mechanism 122 forms an angle with the first clamping mechanism 121. In this configuration, the floating mechanism 122 abuts against one side of the workpiece, while the first clamping mechanism 121 clamps the workpiece from the other side. A limiting member 123 is located at one end of the receiving area; a second clamping mechanism 124 is located at the other end of the receiving area and is used to clamp both ends of the workpiece. When the workpiece is placed in the receiving area, one end of the workpiece abuts against the limiting member 123, and the other end connects to the output end of the second clamping mechanism 124. The extension of the second clamping mechanism 124 pushes the workpiece towards the limiting member 123, thereby achieving workpiece clamping. In this embodiment, the L-shaped support 111 and the adaptive clamping of the floating cylinder ensure stability during rotation switching, making the clamped workpiece more stable.
[0036] Furthermore, such as Figure 2 , 5 As shown, the clamping assembly 12 also includes a protective plate 125, which is disposed on the floating mechanism 122. The initial height of the protective plate 125 is higher than the height of the floating mechanism 122, and the protective plate 125 is used to protect the floating mechanism 122. When the workpiece is placed, it is easy to cause a large impact to the floating cylinder, so setting a protective plate 125 can protect the floating cylinder from damage and extend its service life.
[0037] Furthermore, the first clamping mechanism 121 and the second clamping mechanism 124 are ordinary cylinders, and the floating mechanism 122 is a floating cylinder.
[0038] Furthermore, such as Figure 1 As shown, it also includes: a detection module 4, which is used to determine the reference surface of the milled workpiece. In this embodiment, the detection module 4 is a detection needle, which is used to detect the thickness of the workpiece surface. Because the thickness of the workpiece has a certain error, it is necessary to determine the starting point of milling in order to determine the reference surface of milling.
[0039] In use, the workpiece is placed in the bearing area by external equipment. The L-shaped support 111 holds the workpiece, one end of the workpiece abuts against the limiting member 123, and the other end is clamped by the extension of the second clamping mechanism 124. The first clamping mechanism 121 retracts and the floating mechanism 122 extends. The workpiece is clamped under the combined action of the first clamping mechanism 121 and the floating mechanism 122. Then, the detection module 4 detects the thickness of the workpiece surface to determine the reference surface for milling, and then milling begins.
[0040] Above, refer to Figures 1-5 This invention describes a milling fixture for automotive structural parts according to an embodiment of the present invention. Through the coordinated design of the clamping module 1 and the positioner 3, parallel operation of machining and loading / unloading is achieved. The symmetrically arranged clamping modules 1 on both sides of the plate 2 allow for simultaneous workpiece replacement on the other side while milling on one side. The positioner 3 drives the plate 2 to rotate 180° to instantly switch machining positions, reducing traditional workpiece changeover time and improving equipment utilization. The detection module 4 pre-calibrates the reference surface of the newly clamped workpiece during machining, further shortening cycle time.
[0041] It should be noted that, in this specification, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising..." does not exclude the presence of additional identical elements in the process, method, article, or apparatus that includes that element.
[0042] Although the present invention has been described in detail through the above preferred embodiments, it should be understood that the above description should not be considered as a limitation of the present invention. Various modifications and substitutions to the present invention will be apparent to those skilled in the art after reading the above content. Therefore, the scope of protection of the present invention should be defined by the appended claims.
Claims
1. A milling fixture for automotive structural components, used for clamping a workpiece to be milled, wherein the workpiece is a sill beam or chassis beam of a new energy vehicle, characterized in that, Include: A clamping module, used for clamping the workpiece; The plate body has a clamping module installed on each of its two sides; A positioner is located at both ends of the plate and is used to drive the plate to rotate.
2. The milling fixture for automotive structural parts as described in claim 1, characterized in that, The clamping module includes: A support assembly is disposed on the plate body, and the support assembly and the plate body form a receiving area for receiving the workpiece; A clamping assembly is arranged adjacent to the support assembly, and the clamping assembly is used to clamp the workpiece in the receiving area.
3. The milling fixture for automotive structural parts as described in claim 2, characterized in that, The support component includes: A support member, the support member being L-shaped, is used to place the workpiece to be processed on the L-shaped support member; A buffer block is disposed at the end of the support member to mitigate the collision between the workpiece and the support member.
4. The milling fixture for automotive structural parts as described in claim 3, characterized in that, The clamping assembly includes: A first clamping mechanism is disposed adjacent to the support member, and the first clamping mechanism is used to clamp the workpiece supported on the support member; A floating mechanism is provided in pairs with the first clamping mechanism. The floating mechanism abuts against one side of the workpiece, and the first clamping mechanism clamps the workpiece from the other side. A limiting member is provided at one end of the receiving area; A second clamping mechanism is located at the other end of the receiving area, and the second clamping mechanism is used to clamp both ends of the workpiece; When the workpiece is placed in the receiving area, one end of the workpiece abuts against the limiting member, and the other end is connected to the output end of the second clamping mechanism.
5. The milling fixture for automotive structural parts as described in claim 4, characterized in that, The clamping assembly further includes a protective plate disposed on the floating mechanism, the initial height of the protective plate being higher than the height of the floating mechanism, and the protective plate being used to protect the floating mechanism.
6. The milling fixture for automotive structural parts as described in claim 4, characterized in that, The first clamping mechanism and the second clamping mechanism are ordinary cylinders, and the floating mechanism is a floating cylinder.
7. The milling fixture for automotive structural parts as described in claim 1, characterized in that, It also includes: a detection module, which is used to determine the reference surface for milling the workpiece.