Automatic clamp for auxiliary frame machining
The hydraulically controlled automated fixture solves the problem of decreased machining accuracy caused by the numerous processes in existing tooling fixtures, achieving more efficient subframe machining. It is suitable for five-axis machine tools and reduces the difficulty and cost of operation.
Patent Information
- Application Number
- CN202520340657.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-28
- Publication Date
- 2026-01-30
- Estimated Expiration
- 2035-02-28
AI Technical Summary
Existing tooling fixtures require multiple processing steps, which reduces machining accuracy and requires operators to assist in loading and unloading workpieces, especially for complex subframe machining.
Design an automated fixture for subframe machining. Utilize the hydraulic control of the main hydraulic pressure plate and the support to automatically clamp and release workpieces. It works in conjunction with a robotic arm to load and unload workpieces. Suitable for five-axis machine tools, it reduces machining steps and the number of fixtures.
It improves processing accuracy, reduces processing steps, saves costs, and reduces operational difficulty and labor intensity.
Smart Images

Figure CN223848696U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of tooling and fixture technology, and in particular to an automated fixture for subframe machining. Background Technology
[0002] The automated fixture for subframe machining is a special automated fixture for subframes. It can ensure that the subframe is fixed and accurate in position during the machining process, avoid errors caused by manual positioning, and improve the assembly accuracy between parts.
[0003] Existing tooling fixtures require many steps to complete the processing, especially for some complex subframes. The processing is quite complicated, and the numerous steps can lead to a decrease in the machining accuracy of the workpiece, and also require operators to assist in loading and unloading the workpiece.
[0004] Therefore, addressing the issue that existing tooling fixtures require numerous processing steps, leading to decreased workpiece accuracy and the need for operator assistance in loading and unloading, an automated fixture for subframe machining can be designed. This fixture utilizes two main hydraulic plates: a primary hydraulic plate and a secondary hydraulic plate. When the frame is placed inside, these plates are hydraulically raised. After placement, they are hydraulically lowered to a horizontal position. Then, two main hydraulic supports are hydraulically lifted to engage with their corresponding primary hydraulic plates, clamping the frame. Since the entire process is hydraulically automated, a robotic arm can be integrated for loading and unloading, resulting in a more compact fixture. This allows for compatibility with five-axis machine tools, enabling more complex machining, improved accuracy, fewer subframe machining steps, fewer fixtures, and cost savings. Utility Model Content
[0005] To overcome the problem that existing tooling fixtures require many processes to complete the machining, the increased number of processes reduces the machining accuracy of the workpiece, and requires operators to assist in loading and unloading the workpiece.
[0006] The technical solution of this utility model is as follows: an automated fixture for subframe processing, including a fixture base; it also includes a mounting seat 1, a main hydraulic pressure plate 1, a main hydraulic support 1, a mounting seat 2, a main hydraulic pressure plate 2, and a main hydraulic support 2. Mounting seats 1 are provided at the two front corners of the upper surface of the fixture base. The main hydraulic pressure plate 1 is installed on the upper surface of mounting seat 1 near the fixture base. The main hydraulic support 1 is provided on the upper surface of mounting seat 1 on the side of the main hydraulic pressure plate. Mounting seats 2 are provided at the two rear corners of the upper surface of the fixture base. The main hydraulic pressure plate 2 is provided on the front side of the upper surface of mounting seat 2. The main hydraulic support 2 is installed on the upper surface of mounting seat 2 on the side of the main hydraulic pressure plate 2.
[0007] Preferably, by setting up main hydraulic pressure plate one and main hydraulic pressure plate two, when the frame is to be placed, the pressure plates one and two are raised by hydraulic control. After the frame is placed, the pressure plates one and two are pressed down to a horizontal state by hydraulic control. Then, by setting up main hydraulic support one and main hydraulic support two, they are lifted upward by hydraulic control to cooperate with their corresponding main hydraulic pressure plates one and two, thereby clamping the frame. Since the whole process is hydraulically automatic, it can be combined with a robot to load and unload the workpiece, thereby making the fixture more compact, matching a five-axis machine tool, completing more complex processing, improving processing accuracy, reducing the processing steps of the subframe, reducing the number of fixtures, and saving costs. This solves the problem that existing tooling fixtures require many processing steps, especially for some complex subframes, where the processing process is more complicated. Due to the many steps, the processing accuracy of the workpiece is reduced, and operators are required to assist in loading and unloading the workpiece.
[0008] Preferably, the upper surface of the clamp base is provided with a lifting seat on all four sides, and the upper surface of the lifting seat is equipped with a lifting ring.
[0009] Preferably, the upper surface of the fixture base has two sets of symmetrical threaded grooves in the middle, and nameplates are installed on both sets of threaded grooves on the upper surface of the fixture base.
[0010] Preferably, mounting base three is provided at each of the four corners of the upper surface of the fixture base, auxiliary hydraulic support is installed on the upper surface of mounting base three, mounting base four is provided on the upper surface of mounting base three next to the auxiliary hydraulic support, and auxiliary hydraulic pressure plate is installed on the upper surface of mounting base four.
[0011] Preferably, a mounting groove is provided on the front side of the middle position of the lower surface of the fixture base, and a positioning pin is installed inside the mounting groove.
[0012] Preferably, guide posts 1 are installed on the upper surface of mounting base 1 on the side away from the fixture base, and guide posts 2 are installed on the rear side of the upper surface of the two mounting bases 2.
[0013] Preferably, the lower surface of the fixture base has several weight-reducing grooves.
[0014] The beneficial effects of this utility model are:
[0015] 1. By setting up main hydraulic pressure plates one and two, when the frame is to be placed, the pressure plates one and two are raised by hydraulic control. After the frame is placed, the pressure plates one and two are pressed down to a horizontal state by hydraulic control. Then, by setting up main hydraulic supports one and two, they are lifted upward by hydraulic control to cooperate with their corresponding main hydraulic pressure plates one and two, thereby clamping the frame. Since the whole process is hydraulically automatic, it can be combined with a robot to load and unload the workpiece, thereby making the fixture more compact, matching five-axis machine tools, completing more complex processing, improving processing accuracy, reducing the processing steps of the subframe, reducing the number of fixtures, and saving costs. This solves the problem that existing tooling fixtures require many processing steps, especially for some complex subframes. Due to the many steps, the processing accuracy of the workpiece is reduced, and operators are required to assist in loading and unloading the workpiece. Attached Figure Description
[0016] Figure 1 The diagram shown is a three-dimensional structural schematic of an automated fixture for subframe processing according to this utility model.
[0017] Figure 2 The diagram shown is a schematic representation of the structure of an automated fixture base for subframe machining according to this utility model.
[0018] Figure 3 The diagram shown is a schematic diagram of the three-part structure of an automated fixture mounting base for subframe processing according to this utility model;
[0019] Figure 4 The diagram shown is a schematic representation of the weight reduction groove structure of an automated fixture for subframe processing according to this utility model.
[0020] Figure 5 This invention presents an automated fixture for machining subframes. Figure 4 The enlarged view at point A shown is a schematic diagram of the construction.
[0021] Explanation of reference numerals in the attached drawings: 1. Fixture base; 2. Mounting seat one; 3. Main hydraulic pressure plate one; 4. Main hydraulic support one; 5. Mounting seat two; 6. Main hydraulic pressure plate two; 7. Main hydraulic support two; 8. Lifting device seat; 9. Lifting ring; 10. Threaded groove; 11. Nameplate; 12. Mounting seat three; 13. Auxiliary hydraulic support; 14. Mounting seat four; 15. Auxiliary hydraulic pressure plate; 16. Mounting groove; 17. Locating pin; 18. Guide post one; 19. Guide post two; 20. Weight reduction groove. Detailed Implementation
[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0023] Please see Figures 1-5 This utility model provides an embodiment: an automated fixture for subframe machining, including a fixture base 1; it also includes a mounting seat 2, a main hydraulic pressure plate 3, a main hydraulic support 4, a mounting seat 5, a main hydraulic pressure plate 6, and a main hydraulic support 7. Mounting seats 2 are provided at the two front corners of the upper surface of the fixture base 1. The main hydraulic pressure plate 3 is mounted on the upper surface of mounting seat 2 near the fixture base 1. The main hydraulic support 4 is located on the upper surface of mounting seat 2 next to the main hydraulic pressure plate 3. Mounting seats 25 are provided at the two rear corners of the upper surface of the fixture base 1. The main hydraulic pressure plate 6 is located on the front side of the upper surface of mounting seat 25. The main hydraulic support 7 is located on the upper surface of mounting seat 25 next to the main hydraulic pressure plate 6. By setting up main hydraulic pressure plate 3 and main hydraulic pressure plate 6, when the frame is to be placed, the pressure plates of main hydraulic pressure plate 3 and main hydraulic pressure plate 6 are raised by hydraulic control. After the frame is placed, the pressure plates of main hydraulic pressure plate 3 and main hydraulic pressure plate 6 are pressed down to a horizontal state by hydraulic control. Then, by setting up main hydraulic support 4 and main hydraulic support 7, they are lifted up by hydraulic control to cooperate with their corresponding main hydraulic pressure plates 3 and main hydraulic pressure plate 6, thereby clamping the frame. Since the whole process is hydraulically automatic, it can be combined with a robot to load and unload workpieces, thereby making the fixture more compact, matching five-axis machine tools, completing more complex processing, improving processing accuracy, reducing the processing steps of the subframe, reducing the number of fixtures, and saving costs.
[0024] Please see Figures 2-3In this embodiment, a lifting seat 8 is provided on all four sides of the upper surface of the clamp base 1. A lifting ring 9 is installed on the upper surface of the lifting seat 8. By providing the lifting ring 9, the crane hook has a place to hook the clamp base 1 during installation. Since there is a lifting ring 9 on each of the four sides, the operation is more stable during crane transport. Two sets of symmetrical threaded grooves 10 are provided in the middle of the upper surface of the clamp base 1. Nameplates 11 are installed on both sets of threaded grooves 10 on the upper surface of the clamp base 1. By providing the threaded grooves 10, the nameplates 11 can be firmly fixed to the clamp base 1 using bolts. Furthermore, the nameplates 11 can be used to label various information about the clamp, thereby enabling operators to easily identify the clamp. To quickly obtain information about this clamp, mounting seats 12 are provided at the four corners of the upper surface of the clamp base 1. Auxiliary hydraulic supports 13 are installed on the upper surface of mounting seats 12. Mounting seats 14 are provided on the upper surface of mounting seats 12 next to the auxiliary hydraulic supports 13. Auxiliary hydraulic pressure plates 15 are installed on the upper surface of mounting seats 14. By setting up auxiliary hydraulic pressure plates 15, when the frame is placed, the pressure plate of the auxiliary hydraulic pressure plates 15 is lifted by hydraulic control. After the frame is placed, the pressure plate of the auxiliary hydraulic pressure plates 15 is placed horizontally by hydraulic control. Finally, by setting up auxiliary hydraulic supports 13, the frame is lifted upward by hydraulic control to cooperate with the corresponding auxiliary hydraulic pressure plates 15, thereby achieving the purpose of auxiliary clamping of the frame.
[0025] Please see Figures 2-5 In this embodiment, a mounting groove 16 is provided on the front side of the middle position of the lower surface of the fixture base 1. A positioning pin 17 is installed inside the mounting groove 16. By setting the positioning pin 17, the automated positioning method reduces the time for manual adjustment, speeds up the production cycle, and improves processing efficiency. Guide posts 18 are installed on the side of the upper surface of the mounting seat 1 away from the fixture base 1, and guide posts 29 are installed on the rear side of the upper surface of the two mounting seats 2. By setting the guide posts 18 and 29, it can be ensured that the position of the frame is completely consistent each time, thereby achieving the purpose of positioning the frame. Several weight-reducing grooves 20 are provided on the lower surface of the fixture base 1. By setting the weight-reducing grooves 20, it helps to reduce the overall weight of the fixture. The lighter fixture can make it easier for operators to install and adjust, reduce the difficulty of operation and labor intensity, and improve work efficiency.
[0026] During operation, by setting lifting rings 9, the crane hook has a place to hook when installing the clamp base 1. Since there is a lifting ring 9 on each of the four sides, the crane is more stable during transport. By setting threaded grooves 10, the nameplate 11 can be firmly fixed to the clamp base 1 with bolts. The nameplate 11 also allows for labeling various information about the clamp, enabling operators to quickly understand its details. By setting auxiliary hydraulic pressure plates 15, the pressure plates are raised hydraulically when the frame is placed in, and then hydraulically controlled to be placed horizontally after placement. Finally... By setting up an auxiliary hydraulic support 13, which is hydraulically controlled to lift upwards and cooperate with its corresponding auxiliary hydraulic pressure plate 15, the frame is clamped. By setting up a positioning pin 17, the automated positioning method reduces the time for manual adjustment, speeds up the production cycle, and improves processing efficiency. By setting up guide post one 18 and guide post two 19, the position of the frame placed in the machine can be ensured to be completely consistent each time, thereby achieving the purpose of positioning the frame. By setting up a weight reduction groove 20, the overall weight of the fixture is reduced. The lighter fixture makes it easier for operators to install and adjust, reduces the difficulty of operation and labor intensity, and improves work efficiency.
[0027] Through the above steps, by setting main hydraulic pressure plate 3 and main hydraulic pressure plate 6, when the frame is to be placed, the pressure plates of main hydraulic pressure plate 3 and main hydraulic pressure plate 6 are lifted by hydraulic control. After the frame is placed, the pressure plates of main hydraulic pressure plate 3 and main hydraulic pressure plate 6 are pressed down to a horizontal state by hydraulic control. Then, by setting main hydraulic support 4 and main hydraulic support 7, they are lifted upward by hydraulic control to cooperate with their corresponding main hydraulic pressure plates 3 and main hydraulic pressure plates 6, thereby clamping the frame. Since the whole process is hydraulically automatic, it can be combined with a robot to load and unload the workpiece, thereby making the fixture more compact, matching five-axis machine tools, completing more complex processing, improving processing accuracy, reducing the processing steps of the subframe, reducing the number of fixtures, and saving costs. This solves the problem that existing tooling fixtures require many processing steps to complete the processing, especially for some complex subframes. Due to the many steps, the processing accuracy of the workpiece is reduced, and operators are required to assist in loading and unloading the workpiece.
Claims
1. An automated fixture for processing a subframe, comprising a fixture base (1); characterized in that: It also includes the mounting seat one (2), the main hydraulic clamp one (3), the main hydraulic support one (4), the mounting seat two (5), the main hydraulic clamp two (6) and the main hydraulic support two (7), the upper surface of the front side of the two corners of the fixture base (1) is close to the edge, and the mounting seat one (2) is installed on the upper surface of the main hydraulic clamp one (3) close to the side of the fixture base (1), the main hydraulic support one (4) is arranged on the upper surface of the mounting seat one (2) on the side of the main hydraulic clamp one (3), the mounting seat two (5) is installed on the upper surface of the rear side of the two corners of the fixture base (1), the main hydraulic clamp two (6) is arranged on the upper surface of the mounting seat two (5) on the side of the main hydraulic clamp two (6), and the main hydraulic support two (7) is arranged on the upper surface of the mounting seat two (5) on the side of the main hydraulic clamp two (6).
2. The automated fixture for processing a subframe according to claim 1, wherein: The upper surface of the fixture base (1) is provided with a lifting seat (8) on the four sides, and a lifting ring (9) is installed on the upper surface of the lifting seat (8).
3. The automated fixture for processing a subframe according to claim 1, wherein: The upper surface of the fixture base (1) is provided with two groups of symmetric screw grooves (10) at the middle position, and a nameplate (11) is installed on the upper surface of the fixture base (1) at the two groups of screw grooves (10).
4. The automated fixture for processing a subframe according to claim 1, wherein: The upper surface of the fixture base (1) is provided with a mounting seat three (12) at the four corners, and an auxiliary hydraulic support (13) is installed on the upper surface of the mounting seat three (12), and an auxiliary hydraulic clamp (15) is installed on the upper surface of the mounting seat four (14) on the side of the auxiliary hydraulic support (13).
5. The automated fixture for processing a subframe according to claim 1, wherein: The lower surface of the fixture base (1) is provided with a mounting groove (16) at the front side of the middle position, and a positioning pin (17) is installed in the mounting groove (16).
6. The automated fixture for processing a subframe according to claim 1, wherein: The upper surface of the mounting seat one (2) is provided with a guide column one (18) away from the side of the fixture base (1), and a guide column two (19) is installed on the upper surface of the rear side of the two mounting seat two (5).
7. The automated fixture for processing a subframe according to claim 1, wherein: The lower surface of the fixture base (1) is provided with a plurality of lightening grooves (20).