Main shaft locking mechanism capable of achieving positioning and locking through cutter handle
By designing a spindle locking mechanism for positioning and locking the tool holder, and utilizing the cooperation of the sliding shell and the clamping block, the problem of the tool holder being unable to be effectively fixed is solved, high-precision machining and sealing are achieved, and the scrap rate and production cost are reduced.
Patent Information
- Application Number
- CN202422847917.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-21
- Publication Date
- 2025-10-14
- Estimated Expiration
- 2034-11-21
AI Technical Summary
The existing tool holder positioning and locking mechanism cannot effectively lock the tool holder in CNC machine tools, resulting in reduced machining accuracy, large errors, increased scrap rate and production costs.
A spindle locking mechanism that utilizes the tool holder for positioning and locking is adopted. Through the cooperation of the sliding shell and the clamping block, the tool holder is effectively fixed and sealed, which prevents debris and cutting fluid from entering the spindle, and improves the processing accuracy and sealing.
Maintain machining accuracy, reduce scrap rate, improve work efficiency, extend spindle life, and reduce maintenance frequency and production costs.
Smart Images
Figure CN223430960U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to numerical control machine tool technical field especially utilizes the main shaft locking mechanism of lock -up of tool holder positioning. BACKGROUND
[0002] Turning and milling combined machining is a kind of machining mode that combines turning and milling, and is usually carried out on a numerical control machine tool. This machining mode can improve machining efficiency and precision, and can process more complex workpiece shapes, such as parts with curved surfaces and various features, which are difficult to achieve on traditional lathes or milling machines, and are widely used in aerospace, automobile manufacturing, mold machining, etc. When the tool holder is assembled to the main shaft, the debugging process is complex, the efficiency is low, and the hydraulic system device is used, which not only brings a large load to the machine tool, but also is easily affected by the environment and other external factors to cause oil leakage and other problems, increasing the use and maintenance costs. With the continuous improvement of the performance of machine tools and main shafts, the locking mode of the main shaft has become an important factor restricting the performance of machine tools.
[0003] In the prior art, part of the tool holder positioning and locking main shaft locking mechanism cannot effectively trap the tool holder when in use, which reduces the machining precision during turning and milling, and thus increases the error, reduces the product quality, increases the scrap rate, increases the production cost, and wastes productivity. Therefore, a tool holder positioning and locking main shaft locking mechanism is proposed to solve the above problems. UTILITY MODEL CONTENTS
[0004] In order to make up for the above shortcomings, the utility model provides a tool holder positioning and locking main shaft locking mechanism, which aims to improve the problem that the tool holder cannot be effectively trapped in the prior art, which reduces the machining precision.
[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:
[0006] A tool holder positioning and locking main shaft locking mechanism, comprising a main shaft body, two clamping grooves are formed in the inside of the main shaft body, a clamping block is slidably connected in the inside of the clamping groove, two limiting grooves are formed in the outside of the main shaft body, a tool holder body is slidably connected in the inside of the main shaft body, a drill assembly for machining is installed at the bottom of the tool holder body, a sliding shell is slidably connected to the outside of the main shaft body, two top blocks are fixedly connected in the inside of the sliding shell, two clamping columns are fixedly connected in the inside of the main shaft body, a fixed shell is fixedly connected to the outside of the main shaft body, a plurality of spring columns are fixedly connected in the inside of the fixed shell, and a top ring is fixedly connected to the top of the plurality of spring columns.
[0007] As a further description of the above technical scheme:
[0008] The drill bit assembly comprises a drill head, the outer part of the drill head is fixedly connected to the inner part of the drill handle body, and the outer part of the clamping block is clamped with the inner part of the drill handle body.
[0009] As a further description of the above technical solution:
[0010] The outer part of the sliding shell is provided with a clamping groove two, the outer part of the clamping groove two is provided with a gasket one, the outer part of the sliding shell is provided with a gasket two, the outer part of the sliding shell is provided with two clamping rings one, the inner part of the clamping ring one is fixedly connected with a ring block, the outer part of the fixed shell is slidingly connected with two clamping rings two, the top of the clamping ring two is provided with a clamping pad, the outer part of the fixed shell is provided with a gasket three, the rear side of the clamping ring one and the clamping ring two is fixedly connected with a fixed block, and the inner part of every two fixed blocks is provided with two screws.
[0011] As a further description of the above technical solution:
[0012] The outer part of the clamping column is slidingly connected to the inner part of the main shaft body, and the outer part of the clamping column is slidingly connected to the inner part of the limiting groove.
[0013] As a further description of the above technical solution:
[0014] The outer part of the sliding shell is slidingly connected to the inner part of the fixed shell, and the outer part of the top ring is slidingly connected to the inner part of the fixed shell.
[0015] As a further description of the above technical solution:
[0016] The inner part of the top ring is slidingly connected to the outer part of the main shaft body, and the outer part of the gasket two is in contact with the inner part of the fixed shell.
[0017] As a further description of the above technical solution:
[0018] The outer part of the ring block is clamped with the inner part of the clamping groove two, and the top of the clamping pad is in contact with the bottom of the clamping ring one.
[0019] As a further description of the above technical solution:
[0020] The outer part of one of the clamping rings one is rotatably connected to the outer part of another clamping ring one, and the outer part of one of the clamping rings two is rotatably connected to the outer part of another clamping ring two.
[0021] The utility model has the advantages of the following:
[0022] 1. The utility model discloses a slide shell is moved downward makes the top piece can be clamped with the handle of knife and is clamped together, thereby handles the body of knife and is positioned and fixed, makes handle body of knife not wobble, and then makes in the processing process can keep processing accuracy, thereby can keep product quality, reduces the rate of defective products, and then improves work efficiency and reduces production cost.
[0023] 2. The utility model discloses a slide shell is moved downward makes the top piece can be clamped with the handle of knife and is clamped together, thereby handles the body of knife and is positioned and fixed, makes handle body of knife not wobble, and then makes in the processing process can keep processing accuracy, thereby can keep product quality, reduces the rate of defective products, and then improves work efficiency and reduces production cost. DRAWINGS
[0024] Figure 1 A kind of locking mechanism of main shaft of the utility model is provided, which is locked by handle positioning;
[0025] Figure 2 A kind of locking mechanism of main shaft of the utility model is provided, which is locked by handle positioning;
[0026] Figure 3 A kind of locking mechanism of main shaft of the utility model is provided, which is locked by handle positioning;
[0027] Figure 4 A kind of locking mechanism of main shaft of the utility model is provided, which is locked by handle positioning;
[0028] Figure 5 A kind of locking mechanism of main shaft of the utility model is provided, which is locked by handle positioning;
[0029] Figure 6 A kind of locking mechanism of main shaft of the utility model is provided, which is locked by handle positioning;
[0030] Figure 7 A kind of locking mechanism of main shaft of the utility model is provided, which is locked by handle positioning; Figure 4 Enlarged view in A of the utility model is provided.
[0031] Legend:
[0032] 1, main shaft body;2, card slot one;3, clamping block;4, limit slot;5, handle body of knife;6, tool bit;7, slide shell;8, top piece;9, clamping column;10, fixed shell;11, spring column;12, top ring;13, card slot two;14, washer one;15, washer two;16, clamping ring one;17, ring block;18, clamping ring two;19, pad;20, washer three;21, fixed block;22, screw. Specific implementation
[0033] The technical solutions in the embodiments of the utility model will be apparently and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by the ordinary skilled in the art without creative labor fall within the scope of the utility model.
[0034] With reference to Figure 1 , Figure 2 and Figure 3 , the utility model provides an embodiment: a kind of main shaft locking mechanism using tool holder positioning locking, including main shaft body 1, main shaft body 1 is the core part of entire locking mechanism, responsible for power transmission and rotation, the inside of main shaft body 1 is provided with two clamping grooves 2, recess, for subsequent positioning and sliding, clamping groove 2 is slidably connected with clamping block 3 in its inside, for subsequent clamping, the outside of main shaft body 1 is provided with two limit slots 4, as recess, for providing moving track;
[0035] The inside of main shaft body 1 is slidably connected with tool holder body 5, for keeping stable and transmitting cutting force under high speed, the bottom of tool holder body 5 is equipped with drill assembly for processing, drill assembly includes tool bit 6, for processing cutting and the like, the outside of tool bit 6 is fixedly connected in the inside of tool holder body 5, the outside of clamping block 3 is clamped with the inside of tool holder body 5.
[0036] With reference to Figure 4 , Figure 5 and Figure 6 , the outside of main shaft body 1 is slidably connected with sliding shell 7, for providing installation and fixed other components, the inside of sliding shell 7 is fixedly connected with two top blocks 8, by sliding shell 7 can make top block 8 extrude clamping block 3, the inside of main shaft body 1 is fixedly connected with two clamping columns 9, the outside of clamping column 9 is slidably connected in the inside of main shaft body 1, the outside of clamping column 9 is slidably connected in the inside of limit slot 4;
[0037] By the inner wall of clamping column 9 after the corner of limit slot 4, sliding shell 7 can be limited, so that sliding shell 7 cannot rotate, so that the outside of main shaft body 1 is fixedly connected with fixed shell 10, for providing installation and fixed position, the inside of fixed shell 10 is fixedly connected with multiple spring columns 11, for providing elastic force, so that in the operation process, rebound can be carried out, the top of multiple spring columns 11 is fixedly connected with top ring 12, for providing extruding spring column 11's cylindrical plate, the outside of sliding shell 7 is slidably connected in the inside of fixed shell 10, the outside of top ring 12 is slidably connected in the inside of fixed shell 10.
[0038] With reference to Figure 4 andFigure 7 The outer part of the sliding shell 7 is provided with a clamping groove 13, and the outer part of the clamping groove 13 is provided with a washer 14. The clamping groove 13 is used to place the washer 14 and clamp other components. The outer part of the sliding shell 7 is provided with a washer 15. The inner part of the top ring 12 is slidably connected to the outer part of the main shaft body 1. The outer part of the washer 15 is in contact with the inner part of the fixed shell 10. The washer 15 is used to seal the sliding shell 7 when it slides into the fixed shell 10. The outer part of the sliding shell 7 is provided with two clamping rings 16. The outer part of one clamping ring 16 is rotatably connected to the outer part of the other clamping ring 16. The inner part of the clamping ring 16 is fixedly connected with a ring block 17. The outer part of the ring block 17 is clamped with the inner part of the clamping groove 13. The clamping ring 16 cooperates with the ring block 17 to enhance the sealing effect.
[0039] The outer part of the fixed shell 10 is slidably connected with two clamping rings 18. The outer part of one clamping ring 18 is rotatably connected to the outer part of the other clamping ring 18. The top part of the clamping ring 18 is provided with a clamping pad 19. The top part of the clamping pad 19 is in contact with the bottom part of the clamping ring 16. The clamping pad 19 can seal the bottom part of the clamping ring 16 in contact with the clamping ring 18. The outer part of the fixed shell 10 is provided with a washer 20. The clamping ring 18 can seal the fixed shell 10 through the washer 20. The rear side of the clamping ring 16 and the clamping ring 18 is fixedly connected with a fixed block 21. The inner part of every two fixed blocks 21 is provided with two screws 22. The two clamping rings 16 and the two clamping rings 18 can be fixed respectively through the screws 22 and the fixed blocks 21, so that the sealing is greatly enhanced.
[0040] Working principle: when the handle body 5 needs to be installed, the handle body 5 is set to slide into the inner part of the main shaft body 1 from the bottom, and then the sliding shell 7 is moved downward, so that the top block 8 can extrude the clamping block 3, so that the clamping block 3 slides into the clamping hole of the handle body 5, and then clamps with the inner part of the handle body 5. At the same time, the clamping column 9 also moves downward in the limiting groove 4, and when it moves to the bottom of the inner wall of the limiting groove 4, the bottom of the sliding shell 7 will push the top ring 12, so that the top ring 12 slides downward, and then extrudes the multiple spring columns 11 at the bottom of the top ring 12, and then elastically deforms. At this time, the sliding shell 7 is rotated clockwise, so that the clamping column 9 will be rotated to the corner of the limiting groove 4. At this time, the sliding shell 7 is loosened, so that the multiple spring columns 11 will rebound, and then make the sliding shell 7 slide upward, so that the clamping column 9 can push the top of the inner wall of the corner of the limiting groove 4, so that the inner wall of the sliding shell 7 can limit the clamping block 3 to avoid the sliding of the clamping block 3.
[0041] When the sliding shell 7 slides downward, the gasket 15 outside the sliding shell 7 will enter the inside of the fixed shell 10 and seal with it, and then the two screws 22 and the two fixed blocks 21 make the clasp 18 seal the top of the fixed shell 10, and under the cooperation of the gasket 20, the inner wall of the clasp 18 can tightly adhere to the inner wall of the fixed shell 10, and then the other two screws 22 and the other two fixed blocks 21 make the clasp 16 seal the top of the sliding shell 7 through the gasket 14, and the cooperation of the ring block 17 and the clamping groove 13 makes the sealing effect better, and the bottom of the clasp 16 will contact the top of the clasp 18, and then the gap between the two can be sealed through the clamping pad 19, thereby enhancing the sealing performance.
[0042] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and not for limiting the present application, although the foregoing detailed description of the present application is made with reference to the foregoing embodiments, for the skilled in the art, it still can be modified, or part of the technical features of the equivalent replacement, within the spirit and principles of the present application, any modification, equivalent replacement, improvement, etc., should be included in the scope of protection of the present application.
Claims
1. A spindle locking mechanism for positioning and locking a tool handle, comprising a spindle body (1), characterized in that: The spindle body (1) is provided with two card slots (2) inside, the card slots (2) are slidably connected to a card block (3) inside, the spindle body (1) is provided with two limit slots (4) outside, the spindle body (1) is slidably connected to a tool handle body (5) inside, a drill assembly for processing is installed at the bottom of the tool handle body (5), the spindle body (1) is slidably connected to a sliding shell (7) outside, the sliding shell (7) is fixedly connected to two top blocks (8) inside, the spindle body (1) is fixedly connected to two card columns (9) inside, the spindle body (1) is fixedly connected to a fixed shell (10) outside, the fixed shell (10) is fixedly connected to a plurality of spring columns (11) inside, and the tops of the plurality of spring columns (11) are fixedly connected to top rings (12).
2. The spindle locking mechanism utilizing tool handle positioning and locking according to claim 1, characterized in that: The drill bit assembly comprises a cutter head (6), the outside of the cutter head (6) is fixedly connected to the inside of the handle body (5), and the outside of the clamping block (3) is engaged with the inside of the handle body (5).
3. The spindle locking mechanism utilizing tool handle positioning and locking according to claim 1, characterized in that: The sliding shell (7) is provided with a second card slot (13) on the outside, a washer (14) is provided on the outside of the second card slot (13), a washer (15) is provided on the outside of the sliding shell (7), two first snap rings (16) are provided on the outside of the sliding shell (7), a ring block (17) is fixedly connected to the inside of the first snap ring (16), two second snap rings (18) are slidably connected to the outside of the fixed shell (10), a clamping pad (19) is provided on the top of the second snap ring (18), a washer (20) is provided on the outside of the fixed shell (10), the rear sides of the first snap ring (16) and the second snap ring (18) are fixedly connected to a fixed block (21), and two screws (22) are provided inside each of the two fixed blocks (21).
4. The spindle locking mechanism utilizing tool handle positioning and locking according to claim 1, characterized in that: The outside of the clamping column (9) is slidably connected to the inside of the main shaft body (1), and the outside of the clamping column (9) is slidably connected to the inside of the limiting groove (4).
5. The spindle locking mechanism utilizing tool handle positioning and locking according to claim 1, characterized in that: The outside of the sliding shell (7) is slidably connected to the inside of the fixed shell (10), and the outside of the top ring (12) is slidably connected to the inside of the fixed shell (10).
6. The spindle locking mechanism utilizing tool handle positioning and locking according to claim 3, characterized in that: The interior of the top ring (12) is slidably connected to the exterior of the main shaft body (1), and the exterior of the second washer (15) is in contact with the interior of the fixed shell (10).
7. The spindle locking mechanism utilizing tool handle positioning and locking according to claim 3, characterized in that: The outside of the ring block (17) is engaged with the inside of the second clamping groove (13), and the top of the clamping pad (19) is in contact with the bottom of the first clamping ring (16).
8. The spindle locking mechanism utilizing tool handle positioning and locking according to claim 3, characterized in that: The outside of one of the snap rings (16) is rotatably connected to the outside of the other snap ring (16), and the outside of one of the snap rings (18) is rotatably connected to the outside of the other snap ring (18).