Numerical control cushionless tool holder
By introducing an angle slider and a pusher assembly into the CNC tool holder, automatic adjustment of height and angle is achieved, solving the problem that traditional CNC tool holders cannot be adjusted, and improving ease of use and stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHANGZHOU WANLI MECHANICAL & ELECTRICAL TECHNOLOGY CO LTD
- Filing Date
- 2025-07-01
- Publication Date
- 2026-07-03
AI Technical Summary
The existing CNC tool holders are not adjustable, which requires the purchase of various cutting inserts of different thicknesses, a process that is time-consuming, labor-intensive, and expensive.
The design employs an angle slider and a push assembly, using an adjusting screw to drive the movement of the angle slider, replacing the traditional pad blade adjustment method, and achieving automatic adjustment of height and angle.
It improves the ease of use and stability of CNC tool holders, reduces reliance on insert pads, and simplifies the operation process.
Smart Images

Figure CN224444614U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of tool holder accessories, and in particular to a CNC tool holder without pads. Background Technology
[0002] A CNC tool holder is a device mounted on a CNC lathe used to fix and adjust multiple cutting tools. It allows users to arrange multiple tools as needed and quickly switch between them, thereby improving machining efficiency and automation.
[0003] Chinese Patent Publication No. CN216325140U, published on April 19, 2022, discloses a CNC lathe tool holder, including a fixed clamp and a movable clamp. The fixed clamp and the movable clamp have symmetrically arranged square slots on their front sides, and the same tool holder is movably installed inside the two square slots. The square slots are provided with auxiliary fixing components, including limiting protrusions and multiple limiting slots. The limiting protrusions are horizontally fixed to the sidewalls of the square slots, and the multiple limiting slots are symmetrically arranged on the top and bottom walls of the square slots. The sidewalls of the tool holder have slots adapted to the limiting protrusions.
[0004] Existing CNC tool holders are not adjustable. If the center height of the tool holder is uneven, it is necessary to purchase various shims of different thicknesses, which is a troublesome, time-consuming, labor-intensive, and expensive process. Therefore, there is an urgent need to propose a corresponding CNC shim-free tool holder to solve the above problems. Utility Model Content
[0005] The purpose of this utility model is to provide a CNC padless tool holder in order to solve the above-mentioned problems.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] A CNC padless tool holder includes a base. The vertical end of the base integrates an angle slider and a pushing component that provides traction for the horizontal movement of the angle slider. The bottom of the angle slider and the inner surface of the vertical end of the base are both provided with inclined surfaces, and the two sets of inclined surfaces fit together.
[0008] Preferably, a slide bar is fixedly connected to the outer wall of the angle slider, and the outer wall of the slide bar is slidably connected to the inner wall of the vertical end of the base through a slide groove.
[0009] Preferably, the pushing component includes an adjusting screw, which includes a smooth section and a threaded section. The outer wall of the threaded section is screwed into the outer wall of the vertical end of the base, and the smooth section is movably engaged with the inner wall of the angle slider.
[0010] Preferably, the outer wall of the adjusting screw is fitted with the angle slider through a wide groove.
[0011] Preferably, the outer wall of the smooth section is rotatably connected to an insert via a bearing. The insert has a rectangular structure, and the outer wall of the insert is slidably connected to the inner wall of the angle slider via a slot.
[0012] Preferably, the horizontal end of the insert is provided with arc-shaped edges on both sides.
[0013] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:
[0014] 1. In this application, an adjusting screw is driven by a tool. The threaded section of the adjusting screw engages with the outer wall of the vertical end of the base, while the smooth section rotates with the insert through a bearing. As the threaded section engages with the vertical end of the base, the adjusting screw moves horizontally and provides a horizontal pushing force to the angle slider. The inclined surface at the bottom of the angle slider slides with the inclined surface inside the vertical end of the base, causing the angle slider to move upward. The angle slider makes room with the angle screw through a wide slot, while the insert slides with the inner wall of the angle slider through a slot. In this way, the adjustable-height angle slider replaces the traditional method of laying the cutting insert, improving the convenience of using the CNC tool holder.
[0015] 2. In this application, during the sliding engagement between the inclined surface at the bottom of the angle slider and the inclined surface of the inner wall of the vertical end of the base, the slide bar on the outer wall of the angle slider simultaneously slides with the inner wall of the vertical end of the base through the inclined slide groove, thereby further improving the stability of the vertical position adjustment of the angle slider and ensuring the stability of the CNC padless tool holder. Attached Figure Description
[0016] Figure 1 A schematic diagram of the overall structure according to an embodiment of the present utility model is shown;
[0017] Figure 2 A schematic diagram of a chute structure according to an embodiment of the present invention is shown;
[0018] Figure 3 A schematic diagram of a wide slot structure according to an embodiment of the present invention is shown;
[0019] Figure 4 A schematic diagram of the block structure provided according to an embodiment of the present invention is shown;
[0020] Figure 5 A schematic diagram of the structure of Embodiment 1 according to an embodiment of the present utility model is shown.
[0021] Figure 6 A schematic diagram showing the second style of the base and the angle slider provided according to an embodiment of the present utility model is shown;
[0022] Figure 7A schematic diagram showing the third style of the base and its cooperation with the angle slider according to an embodiment of the present invention is shown.
[0023] Figure 8 A schematic diagram of the fourth style of base and the angle slider provided according to an embodiment of the present utility model is shown.
[0024] Legend:
[0025] 1. Base; 2. Angle slider; 3. Adjusting screw; 301. Smooth section; 302. Threaded section; 4. Sliding bar; 5. Slide groove; 6. Wide groove; 7. Insert; 8. Slot; 9. Bearing; 10. Curved edge. Detailed Implementation
[0026] 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 skilled in the art without creative effort are within the protection scope of the present utility model.
[0027] Example 1:
[0028] Please see Figure 1 and Figure 5 This utility model provides a technical solution:
[0029] A CNC padless tool holder includes a base 1, an angle slider 2 integrated inside the vertical end of the base 1, and an adjusting screw 3 screwed onto the inner surface of the vertical end of the base 1. The outer surface of the adjusting screw 3 is fitted with the inner surface of the angle slider 2 through a wide groove 6.
[0030] By rotating the adjusting screw 3 forward, the adjusting screw 3 will push the angle slider 2 upward. Similarly, by rotating the adjusting screw 3 in the opposite direction and pressing the angle slider 2 accordingly, the angle slider 2 can be lowered.
[0031] Example 1:
[0032] Please see Figure 1-4 This utility model provides a technical solution:
[0033] A CNC padless tool holder includes a base 1. An angle slider 2 and a push component that provides traction force for the horizontal movement of the angle slider 2 are integrated inside the vertical end of the base 1. The bottom of the angle slider 2 and the inner surface of the vertical end of the base 1 are both provided with inclined surfaces, and the two sets of inclined surfaces fit together.
[0034] The adjusting screw 3 is driven by a tool. The threaded section 302 of the adjusting screw 3 is screwed into the outer wall of the vertical end of the base 1. The smooth section 301 is rotated and engaged with the insert 7 through the bearing 9. As the threaded section 302 is screwed into the vertical end of the base 1, the adjusting screw 3 moves horizontally and provides a horizontal pushing force to the angle slider 2. The inclined surface at the bottom of the angle slider 2 slides and engages with the inclined surface inside the vertical end of the base 1. The angle slider 2 moves upward. The angle slider 2 is engaged with the adjusting screw 3 through the wide groove 6. The insert 7 slides with the inner wall of the angle slider 2 through the slot 8. In this way, the adjustable height angle slider 2 replaces the traditional method of laying the pad blade, improving the convenience of using the CNC tool holder.
[0035] Specifically, such as Figure 2 and Figure 4 As shown, a slider 4 is fixedly connected to the outer wall of the angle slider 2. The outer wall of the slider 4 is slidably connected to the inner wall of the vertical end of the base 1 through a groove 5. During the sliding engagement between the inclined surface at the bottom of the angle slider 2 and the inclined surface of the inner wall of the vertical end of the base 1, the slider 4 on the outer wall of the angle slider 2 simultaneously engages with the inner wall of the vertical end of the base 1 through the inclined groove 5. This further improves the stability of the vertical position adjustment of the angle slider 2, thereby ensuring the stability of the CNC padless tool holder.
[0036] Specifically, such as Figure 2 and Figure 3 As shown, the pushing assembly includes an adjusting screw 3, which comprises a smooth section 301 and a threaded section 302. The outer wall of the threaded section 302 is screwed into the outer wall of the vertical end of the base 1. The smooth section 301 is movably engaged with the inner wall of the angle slider 2. The threaded section 302 of the adjusting screw 3 is screwed into the outer wall of the vertical end of the base 1, while the smooth section 301 is rotatably engaged with the insert 7 via a bearing 9. As the threaded section 302 is screwed into the vertical end of the base 1, the adjusting screw 3 moves horizontally and provides a horizontal pushing force to the angle slider 2. The outer wall of the wire 3 is fitted with the angle slider 2 through the wide groove 6 to meet the movement requirements of the angle slider 2 and the adjusting screw 3. The outer wall of the smooth section 301 is rotatably connected to the insert 7 through the bearing 9. The insert 7 has a rectangular structure, and the outer wall of the insert 7 is slidably connected to the inner wall of the angle slider 2 through the slot 8. This allows the adjusting screw 3 and the angle slider 2 to move together without affecting the vertical movement of the angle slider 2. Both sides of the horizontal end of the insert 7 are provided with arc-shaped edges 10 to ensure the smooth sliding of the insert 7 and the inner wall of the angle slider 2.
[0037] Working principle: The adjusting screw 3 is driven by a tool. The threaded section 302 of the adjusting screw 3 engages with the outer wall of the vertical end of the base 1. The smooth section 301 is rotated and engaged with the insert 7 through the bearing 9. As the threaded section 302 engages with the vertical end of the base 1, the adjusting screw 3 moves horizontally and provides a horizontal pushing force to the angle slider 2. The inclined surface at the bottom of the angle slider 2 slides and engages with the inclined surface inside the vertical end of the base 1, causing the angle slider 2 to move upward. The angle slider 2 makes room for the adjusting screw 3 through the wide groove 6. The insert 7 slides with the inner wall of the angle slider 2 through the slot 8. In this way, the adjustable angle slider 2 replaces the traditional method of laying the cutting edge, improving the convenience of using the CNC tool holder. During the sliding engagement between the inclined surface at the bottom of the angle slider 2 and the inclined surface of the inner wall of the vertical end of the base 1, the slide bar 4 on the outer wall of the angle slider 2 simultaneously slides and engages with the inner wall of the vertical end of the base 1 through the inclined slide groove 5. This further improves the stability of the vertical position adjustment of the angle slider 2, thereby ensuring the stability of the CNC tool holder without cutting edge.
[0038] The above description of the embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A numerically controlled cushionless tool holder comprising a base (1), characterized in that, The vertical end of the base (1) integrates an angle slider (2) and a pushing component that provides traction for the horizontal movement of the angle slider (2). The bottom of the angle slider (2) and the inner surface of the vertical end of the base (1) are both provided with inclined surfaces, and the two sets of inclined surfaces fit together.
2. The numerically controlled cushionless tool holder according to claim 1, characterized in that, The outer wall of the angle slider (2) is fixedly connected to a slide bar (4), and the outer wall of the slide bar (4) is slidably connected to the inner wall of the vertical end of the base (1) through a slide groove (5).
3. The numerically controlled cushionless tool holder according to claim 2, wherein, The pushing component includes an adjusting screw (3), which includes a smooth section (301) and a threaded section (302). The outer wall of the threaded section (302) is screwed into the outer wall of the vertical end of the base (1), and the smooth section (301) is movable into the inner wall of the angle slider (2).
4. The numerically controlled cushionless tool holder according to claim 3, wherein, The outer wall of the adjusting screw (3) is fitted with the angle slider (2) through a wide groove (6).
5. The numerically controlled cushionless tool holder according to claim 4, wherein, The outer wall of the smooth section (301) is rotatably connected to an insert (7) via a bearing (9). The insert (7) has a rectangular structure, and the outer wall of the insert (7) is slidably connected to the inner wall of the angle slider (2) via a slot (8).
6. A numerically controlled cushionless tool holder according to claim 5, wherein, The insert (7) has arc-shaped edges (10) on both sides of its horizontal end.