A gear hobbing fixture
By designing a gear hobbing fixture including multiple key components, using a mechanical structure of double-head bolts and short-pull nails, the rapid clamping and positioning of the workpiece is achieved, and the problems of long clamping and fixing time and difficult machining in the prior art are solved.
Patent Information
- Application Number
- CN202420693377.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-07
- Publication Date
- 2025-04-11
- Estimated Expiration
- 2034-04-07
AI Technical Summary
When existing gear hobbing fixtures are clamped and fixed, it takes a long time to perform top-notch correction, and the clamp and base part of the fixture are too long, making it difficult to process.
A gear hobbing fixture including a base, a chuck seat, a clamp rod, a magazine, a clamp, a connecting sleeve, a top seat, a short pull nail and a double-head bolt are designed. Through the rotation of the double-head bolt, the adjustment sleeve and short pull nail move downward, which drives the sliding cylinder, magazine and clamp to shrink inward to achieve clamping positioning of the workpiece.
It realizes rapid clamping and positioning of the workpiece, saves correction time, is simple to operate, and reduces processing difficulty through split design.
Smart Images
Figure CN222740459U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of gear hobbing production, in particular to a gear hobbing fixture. Background Art
[0002] A gear hobbing fixture is a tooling fixture used for gear hobbing. It is mainly used to clamp and position gear blanks for gear hobbing. The accuracy and stability of the gear hobbing fixture have an important impact on the quality and efficiency of gear hobbing. When selecting and using a gear hobbing fixture, it is necessary to comprehensively consider factors such as specific processing requirements and machine tool models to ensure that the processed gears meet the accuracy and quality requirements.
[0003] The gear hobbing fixture can meet the precision and quality requirements of gear processing. The existing fixtures, when clamping and fixing the workpiece, mostly use the centers at both ends of the workpiece for correction. Since the centers at both ends are very small, it takes a long time to correct them. At the same time, the clip and base of the traditional gear hobbing fixture are too long, which makes processing difficult. Utility Model Content
[0004] The utility model aims to solve the shortcomings in the prior art and provides a gear hobbing fixture.
[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a gear rolling fixture, including a base, a chuck seat is installed inside the top of the base, a clamp rod is installed inside the chuck seat, a clip is fixedly connected to the top of the clamp rod, and there are multiple clips, and positioning holes are opened on the tops of multiple clips, and clamp plates are arranged in the middle of multiple clips, and there are multiple clamp plates, and the tops of the outer walls of multiple clamps are fixedly connected to positioning columns, a base edge connection is installed at the bottom of the base, a connecting sleeve is installed inside the base edge connection, and the outer wall of the top of the connecting sleeve is connected to the clamp rod. The outer wall of the bottom end is threadedly connected, and a top seat groove is provided on the top of the connecting sleeve, and a top seat is installed inside the top seat groove, and a top is fixedly connected to the top of the top seat, and a rivet groove is provided at the bottom of the top seat, and a sliding groove is provided on the top of the inner wall of the rivet groove, and there are multiple sliding grooves, and a short rivet is installed inside the rivet groove, and a sliding cylinder is fixedly connected to the top of the short rivet, and there are multiple sliding cylinders, and the multiple sliding cylinders are respectively located in the multiple sliding grooves, and the bottom outer wall of the short rivet is threadedly connected with an adjustment sleeve, and the inner wall of the adjustment sleeve is threadedly connected with a stud bolt.
[0006] As a further description of the above technical solution:
[0007] The outer wall of the base edge is provided with a rectangular groove, and the number of the rectangular grooves is multiple.
[0008] As a further description of the above technical solution:
[0009] The base is connected to the base edge by a plurality of first bolts, and the bottoms of the plurality of bolts are respectively located inside the plurality of rectangular grooves.
[0010] As a further description of the above technical solution:
[0011] A second bolt is installed inside each of the short pull nails, and there are multiple second bolts. The tops of the multiple second bolts pass through one end of the sliding cylinder and are threadedly connected to the bottom of the connecting sleeve.
[0012] As a further description of the above technical solution:
[0013] The outer edge of the chuck seat is provided with a plurality of communicating holes, and the inner edge of the chuck seat is provided with a plurality of cylindrical grooves.
[0014] As a further description of the above technical solution:
[0015] A fixing groove is provided on the outer wall of the upper end of the base, and a plurality of third bolts are installed on the inner edge of the base. The bottoms of the plurality of third bolts are threadedly connected with T-bolts.
[0016] The utility model has the following beneficial effects:
[0017] 1. By setting a stud bolt and rotating the stud bolt, the adjustment sleeve moves downward, and the short pull nail threaded therewith moves downward accordingly, and the multiple sliding cylinders connected to the top of the short pull nail move in the slide groove provided in the inner ring of the top seat. Since the tops of the multiple second bolts pass through one end of the sliding cylinder and are threadedly connected to the bottom of the connecting sleeve, and since the top outer wall of the connecting sleeve is threadedly connected to the bottom outer wall of the clamping rod, the clamping rod moves downward, and the downward movement of the clamping rod drives the multiple clips to shrink inward, and then drives the multiple clamping plates to shrink inward respectively, so as to clamp and fix the workpiece inside the entire fixture, so as to first clamp and position the workpiece, and then connect it to the outside The workpiece is processed by the cooperation of the center, which saves correction time and is simple to operate. The clip and the base are designed separately to reduce the processing difficulty. When the existing fixture clamps the workpiece, it is mostly used to use the center at both ends of the workpiece for correction. Since the centers at both ends are very small, it takes a long time to correct. At the same time, the clip and the base of the traditional gear rolling fixture are too long, which makes the processing difficult. The device can first clamp and position the workpiece, and then cooperate with the external center to process the workpiece, which saves correction time and is simple to operate. The clip and the base are designed separately to reduce the processing difficulty. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 This is a schematic diagram of the overall structure of a gear hobbing fixture proposed by the utility model from a first perspective;
[0019] Figure 2 This is a schematic diagram of the base structure of a gear hobbing fixture proposed by the utility model;
[0020] Figure 3 This is a schematic diagram of the chuck seat structure of a gear hobbing fixture proposed by the utility model;
[0021] Figure 4 This is the intention of the clip structure of a gear hobbing fixture proposed by the utility model;
[0022] Figure 5 This is a schematic diagram of the structure of a center seat of a gear hobbing fixture proposed by the utility model;
[0023] Figure 6 This is a schematic diagram of a short pull nail structure of a gear hobbing fixture proposed by the utility model;
[0024] Figure 7 The utility model is a schematic diagram of the internal structure of a gear hobbing fixture.
[0025] Legend:
[0026] 1. Base; 2. Chuck seat; 3. Clamp rod; 4. Clip; 5. Positioning hole; 6. Clamp plate; 7. Positioning column; 8. Base edge connection; 9. Rectangular groove; 10. Connecting sleeve; 11. Center seat groove; 12. Center seat; 13. Center; 14. Rivet groove; 15. Slide groove; 16. Sliding cylinder; 17. Short rivet; 18. Adjustment sleeve; 19. Stud bolt; 20. Connecting hole; 21. Cylindrical groove; 22. Fixing groove; 23. T-bolt. DETAILED DESCRIPTION
[0027] Reference Figure 1-7The utility model provides a gear rolling fixture: it includes a base 1, a chuck seat 2 is installed inside the top of the base 1, a clamping rod 3 is installed inside the chuck seat 2, a clip 4 is fixedly connected to the top of the clamping rod 3, and there are multiple clips 4, and positioning holes 5 are opened on the tops of the multiple clips 4, a clamping plate 6 is arranged in the middle of the multiple clips 4, and there are multiple clamping plates 6, and the tops of the outer walls of the multiple clamping plates 6 are fixedly connected with positioning columns 7, a base edge connection 8 is installed at the bottom of the base 1, a connecting sleeve 10 is installed inside the base edge connection 8, the top outer wall of the connecting sleeve 10 is threadedly connected to the bottom outer wall of the clamping rod 3, a top seat groove 11 is opened on the top of the connecting sleeve 10, a top seat 12 is installed inside the top seat groove 11, a top seat 13 is fixedly connected to the top of the top seat 12, a rivet groove 14 is opened at the bottom of the top seat 12, a slide groove 15 is opened on the inner wall top of the rivet groove 14, and there are multiple slide grooves 15, a short rivet 17 is installed inside the rivet groove 14, and a short rivet 17 is installed inside the rivet groove 14. The top of the pull nail 17 is fixedly connected with a sliding cylinder 16, and the number of sliding cylinders 16 is multiple, and the multiple sliding cylinders 16 are respectively located inside the multiple sliding grooves 15, and the outer wall of the bottom end of the short pull nail 17 is threadedly connected with an adjusting sleeve 18, and the inner wall of the adjusting sleeve 18 is threadedly connected with a stud bolt 19. The bottom of the workpiece is placed on the top of the top 13, and the stud bolt 19 is turned, and the adjusting sleeve 18 moves downward, and the short pull nail 17 threadedly connected thereto moves downward accordingly, and the multiple sliding cylinders 16 connected to the top of the short pull nail 17 move in the sliding groove 15 opened on the inner circle of the top seat 12. Since the tops of the multiple second bolts pass through one end of the sliding cylinder 16 and are threadedly connected to the bottom of the connecting sleeve 10, and since the top outer wall of the connecting sleeve 10 is threadedly connected to the bottom outer wall of the clamping rod 3, the clamping rod 3 is moved downward, and the downward movement of the clamping rod 3 drives the multiple clips 4 to retract inwardly, and then drives the multiple clamping plates 6 to retract inwardly, clamps and fixes the workpiece inside the entire clamp, and realizes the clamping and positioning of the workpiece first.
[0028] The outer wall of the base edge joint 8 is provided with a rectangular groove 9 , and there are multiple rectangular grooves 9 . The base 1 is connected to the base edge joint 8 through multiple first bolts, and the bottoms of the multiple bolts are respectively located inside the multiple rectangular grooves 9 .
[0029] Second bolts are installed inside the short pull nails 17 , and there are multiple second bolts. The tops of the multiple second bolts pass through one end of the sliding cylinder 16 and are threadedly connected to the bottom of the connecting sleeve 10 .
[0030] The outer edge of the chuck seat 2 is provided with a plurality of communicating holes 20 , and the inner edge of the chuck seat 2 is provided with a plurality of cylindrical grooves 21 .
[0031] A fixing groove 22 is formed on the outer wall of the upper end of the base 1 , and a plurality of third bolts are installed on the inner edge of the base 1 . The bottoms of the plurality of third bolts are threadedly connected with T-bolts 23 .
[0032] Working principle: place the bottom of the workpiece on the top of the top 13, turn the stud bolt 19, the adjustment sleeve 18 moves downward, and the short pull nail 17 threadedly connected thereto moves downward accordingly. The multiple sliding cylinders 16 connected to the top of the short pull nail 17 move in the slide groove 15 opened in the inner circle of the top seat 12. Since the tops of the multiple second bolts pass through one end of the sliding cylinder 16 and are threadedly connected to the bottom of the connecting sleeve 10, and since the top outer wall of the connecting sleeve 10 is threadedly connected to the bottom outer wall of the clamping rod 3, the clamping rod 3 moves downward. The downward movement of the clamping rod 3 drives the multiple clips 4 to shrink inward, and then drives the multiple clamping plates 6 to shrink inward respectively, so as to clamp and fix the workpiece inside the entire fixture, thereby achieving clamping and positioning of the workpiece first.
[0033] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A gear hobbing fixture, comprising a base (1), characterized in that: A chuck seat (2) is installed inside the top of the base (1), a clamp rod (3) is installed inside the chuck seat (2), a clip (4) is fixedly connected to the top of the clip rod (3), and there are multiple clips (4), and the tops of the multiple clips (4) are all provided with positioning holes (5), and a clamp plate (6) is arranged in the middle of the multiple clips (4), and there are multiple clamp plates (6), and the tops of the outer walls of the multiple clamp plates (6) are all fixedly connected with positioning columns (7), and a base edge connection (8) is installed at the bottom of the base (1), and a connecting sleeve (10) is installed inside the base edge connection (8), the top outer wall of the connecting sleeve (10) is threadedly connected to the bottom outer wall of the clamp rod (3), and the top of the connecting sleeve (10) is provided with a top seat groove (1 1), a top seat (12) is installed inside the top seat groove (11), a top seat (13) is fixedly connected to the top of the top seat (12), a rivet groove (14) is provided at the bottom of the top seat (12), a slide groove (15) is provided at the top of the inner wall of the rivet groove (14), and the number of the slide grooves (15) is multiple, a short rivet (17) is installed inside the rivet groove (14), a sliding cylinder (16) is fixedly connected to the top of the short rivet (17), and the number of the sliding cylinders (16) is multiple, and the multiple sliding cylinders (16) are respectively located inside the multiple slide grooves (15), the outer wall of the bottom end of the short rivet (17) is threadedly connected to an adjustment sleeve (18), and the inner wall of the adjustment sleeve (18) is threadedly connected to a stud bolt (19).
2. A gear hobbing fixture according to claim 1, characterized in that: The outer wall of the base edge joint (8) is provided with a rectangular groove (9), and the number of the rectangular grooves (9) is multiple.
3. A gear hobbing fixture according to claim 2, characterized in that: The base (1) is connected to the base edge (8) via a plurality of first bolts, and the bottoms of the plurality of bolts are respectively located inside the plurality of rectangular grooves (9).
4. The gear hobbing fixture according to claim 1, characterized in that: A second bolt is installed inside each of the short pull nails (17), and there are multiple second bolts. The tops of the multiple second bolts pass through one end of the sliding cylinder (16) and are threadedly connected to the bottom of the connecting sleeve (10).
5. The gear hobbing fixture according to claim 1, characterized in that: The outer edge of the chuck seat (2) is provided with a connecting hole (20), and the connecting holes (20) are multiple in number. The inner edge of the chuck seat (2) is provided with a cylindrical groove (21), and the cylindrical groove (21) is multiple in number.
6. The gear hobbing fixture according to claim 5, characterized in that: The upper outer wall of the base (1) is provided with a fixing groove (22), and a plurality of third bolts are installed on the inner edge of the base (1), and the bottoms of the plurality of third bolts are threadedly connected with T-bolts (23).