Fixture for flange part machining
By designing a clamping mechanism driven by a gear ring and gears, the problem of strict dimensional requirements of existing fixtures is solved, and stable clamping of flanged parts of different sizes is achieved, improving the applicability and processing efficiency of the fixture.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-10
- Publication Date
- 2026-04-07
AI Technical Summary
Existing jigs for machining flanged parts have strict dimensional requirements, poor clamping stability, and limited applicability.
A high-efficiency clamping mechanism including a gear ring, gears, and a motor drive was designed. The meshing of the gear ring and gears drives the lateral movement of the clamping rod, thereby achieving stable clamping of flange-type parts of different sizes. The cylindrical clamping rod is used to improve the clamping effect.
It expands the clamping range, improves the clamping strength and applicability, and enhances processing efficiency.
Smart Images

Figure CN224088447U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of fixture technology, specifically relating to a fixture for machining flange-type parts. Background Technology
[0002] With the continuous development of society and the progress of technology, the performance of automobiles is constantly improving, and the processing technology of automobile parts is also improving. When machining the outer circumference of automotive flange parts, precision turning is usually used as the benchmark. The three jaws of a three-jaw chuck support the inner hole of the flange part, and then the outer circumference of the flange part is machined.
[0003] As disclosed in Publication No. CN218312153U, this utility model discloses a fixture for machining flanged parts, including a mounting block and a flanged part. The mounting block has multiple sliding grooves on its exterior, and a sliding plate is slidably connected to the inner wall of each sliding groove. A flange limiting block is fixed to the end of each sliding plate. The side wall of the mounting block has multiple adjusting cavities, and an adjusting rod is rotatably connected to the inner wall of each adjusting cavity via a bearing. In this device, multiple driven bevel gears meshing with a driving bevel gear and a motor driving the driving bevel gear to rotate automatically enable the simultaneous rotation of multiple sets of adjusting rods. This allows for the simultaneous synchronous movement of multiple sliding plates and flange limiting blocks, eliminating the need for manual clamping and ensuring the clamping quality of the workpiece. It also ensures the correspondence between the center position of the flanged part and the center position of the mounting block, eliminating the need for manual adjustment of the tool center position, effectively reducing time consumption and increasing the machining efficiency of flanged parts.
[0004] Analysis revealed that the proposed solution uses an arc-shaped limiting block for clamping. However, the arc-shaped clamping block imposes certain requirements on the dimensions of the flange-like parts being clamped; otherwise, the clamping stability will be poor, and the overall applicability will be limited. To address these issues, the proposed solution needs to be optimized and improved. Utility Model Content
[0005] To address the problems existing in the background art, this utility model provides a fixture for machining flange-type parts; it has a larger clamping range; and the clamping firmness is also guaranteed.
[0006] This utility model provides a fixture for machining flanged parts, including a base plate, a connecting plate fixedly mounted on the base plate, a motor fixedly mounted on the connecting plate, and a high-efficiency clamping mechanism for flanged parts cooperating between the base plate and the motor. The high-efficiency clamping mechanism for flanged parts includes a gear ring rotatably connected to the base plate, a gear I fixedly mounted on the output end of the motor, the gear I meshing with the gear ring, an internal gear row fixedly mounted inside the gear ring, a plurality of gear II evenly rotatably connected to the base plate, a strip-shaped through hole corresponding to the gear II on the base plate, a slide rod slidably connected in the strip-shaped through hole, a gear row fixedly mounted on the slide rod corresponding to the gear II, the gear row meshing with the gear II, the gear II meshing with the internal gear row, a connecting rod fixedly mounted on the gear II, and a clamping rod I fixedly mounted on the connecting rod.
[0007] Furthermore, an isolation plate is installed on the toothed ring, and the isolation plate is provided with several bolts, which fix the isolation plate to the toothed ring.
[0008] Furthermore, through holes are provided between the base plate and the partition plate.
[0009] Furthermore, a clamping rod 2 is fixedly installed at the other end of the slide rod.
[0010] The beneficial effects of this utility model are:
[0011] Through structural improvements and optimizations, this utility model enables the clamping and fixing of smaller flange-like parts via clamping rod one, and larger flange-like parts via clamping rod two, resulting in wider overall applicability. Furthermore, the cylindrical design of clamping rod one and clamping rod two provides a better clamping effect compared to curved plates. Attached Figure Description
[0012] Figure 1 This is a front perspective view of a fixture for machining flange-type parts according to the present invention.
[0013] Figure 2 This is a rear perspective view of a fixture for machining flange-type parts according to the present invention.
[0014] Figure 3 This is an exploded view of a fixture for machining flange-type parts according to the present invention.
[0015] Figure 4 This is a schematic diagram of clamping rod one and clamping rod two of a jig for machining flanged parts according to the present invention.
[0016] As shown in the figure:
[0017] 1. Base plate, 2. Connecting plate, 3. Motor, 4. Gear ring, 5. Gear one, 6. Internal gear row, 7. Gear two, 8. Strip-shaped through hole, 9. Slide rod, 10. Gear row, 11. Connecting rod, 12. Clamping rod one, 13. Isolation plate, 14. Bolt, 15. Through hole, 16. Clamping rod two. Detailed Implementation
[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0019] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0020] Please refer to the accompanying diagrams in all instruction manuals:
[0021] A fixture for machining flanged parts includes a base plate 1, a connecting plate 2 fixedly mounted on the base plate 1, a motor 3 fixedly mounted on the connecting plate 2, and a high-efficiency clamping mechanism for flanged parts provided between the base plate 1 and the motor 3.
[0022] The high-efficiency clamping mechanism for flange-type parts includes a gear ring 4 rotatably connected to a base plate 1, a gear 5 fixedly mounted on the output end of a motor 3, the gear 5 meshing with the gear ring 4, an internal gear rack 6 fixedly mounted inside the gear ring 4, several gears 7 rotatably connected evenly on the base plate 1, a strip-shaped through hole 8 corresponding to the gears 7 on the base plate 1, a slide rod 9 slidably connected inside the strip-shaped through hole 8, a gear rack 10 fixedly mounted on the slide rod 9 corresponding to the gears 7, the gear rack 10 meshing with the gears 7, the gears 7 meshing with the internal gear rack 6, a connecting rod 11 fixedly mounted on the gears 7, and a clamping rod 12 fixedly mounted on the connecting rod 11.
[0023] As can be seen from the above description, when the motor 3 is working, it will drive the gear 5 to rotate, the gear 5 will drive the gear ring 4 to rotate, causing the internal gear row 6 to rotate, which in turn drives the internal gear 7 to rotate. Under the limitation of the slide rod 9 and the strip-shaped through hole 8, the gear row 10 will move laterally, causing the connecting rod 11 to move laterally, which in turn drives each clamping rod 12 to move laterally. From the outside, it appears that the clamping rods 12 can move radially closer or further apart, which can satisfy the clamping and fixing of flange-type parts.
[0024] As a technical optimization of this utility model, an isolation plate 13 is installed on the toothed ring 4, and a number of bolts 14 are provided on the isolation plate 13. The isolation plate 13 is fixedly connected to the toothed ring 4 by the bolts 14.
[0025] As can be seen from the above description, the isolation plate 13 can separate the internal structure from the outside, improving the overall aesthetics and overall safety.
[0026] As a technical optimization of this utility model, through holes 15 are provided between the base plate 1 and the isolation plate 13;
[0027] As can be seen from the above description, the through hole 15 can provide a certain space to facilitate the passage of flange-type parts under special circumstances.
[0028] As a technical optimization of this utility model, a clamping rod 16 is fixedly installed at the other end of the slide rod 9;
[0029] As can be seen from the above description, clamping rod 2 16 is larger in size than clamping rod 1 12, which can meet the processing requirements of larger flange-type parts. The double-sided clamping capability allows for more flexible rotation switching and improves the overall clamping and fixing efficiency.
[0030] The working process of this utility model is as follows:
[0031] The base plate is fixed on the processing platform. Depending on the size of the flange-type parts, appropriate clamping rod 12 and / or clamping rod 26 are selected for fixed clamping. When the control motor 3 is working, it will drive gear 15 to rotate. Gear 15 drives gear ring 4 to rotate, which causes internal gear row 6 to rotate, which in turn drives internal gear 2 7 to rotate. Under the limit of slide rod 9 and strip-shaped through hole 8, gear row 10 moves laterally, causing connecting rod 11 to move laterally, which in turn drives each clamping rod 12 and clamping rod 2 16 to move laterally. From the outside, it appears that clamping rod 12 and clamping rod 2 16 can move radially closer or further apart, which can satisfy the clamping and fixing of flange-type parts.
[0032] The present invention and its embodiments have been described above. This description is not restrictive, and the specific embodiments shown are only one of the embodiments of the present invention. The actual structure is not limited to this. In short, if a person skilled in the art is inspired by this description and designs a similar structure and embodiment without departing from the inventive spirit of the present invention, such design should fall within the protection scope of the present invention.
Claims
1. A fixture for machining flange-type parts, comprising a base plate, characterized in that: A connecting plate is fixedly mounted on the base plate, and a motor is fixedly mounted on the connecting plate. A high-efficiency clamping mechanism for flange-type parts is provided between the base plate and the motor. The high-efficiency clamping mechanism for flange-type parts includes a gear ring rotatably connected to the base plate. A gear one is fixedly mounted on the output end of the motor. The gear one meshes with the gear ring. An internal gear row is fixedly mounted inside the gear ring. Several gear twos are evenly rotatably connected to the base plate. The base plate has a strip-shaped through hole corresponding to the gear two. A slide rod is slidably connected in the strip-shaped through hole. A gear row is fixedly mounted on the slide rod corresponding to the gear two. The gear row meshes with the gear two. The gear two meshes with the internal gear row. A connecting rod is fixedly mounted on the gear two. A clamping rod one is fixedly mounted on the connecting rod.
2. The fixture for machining flange-type parts according to claim 1, characterized in that: An isolation plate is installed on the toothed ring, and several bolts are provided on the isolation plate. The isolation plate is fixedly connected to the toothed ring by the bolts.
3. The fixture for machining flange-type parts according to claim 2, characterized in that: Through holes are provided between the base plate and the isolation plate.
4. The fixture for machining flange-type parts according to claim 1, characterized in that: A clamping rod 2 is fixedly installed at the other end of the slide rod.
Citation Information
Patent Citations
Fixture for flange part machining
CN218312153U