A full-automatic boring tool edge chamfering fixture
The design of a fully automatic boring tool edge rounding fixture solves the problem of low efficiency in manual boring tool edge machining, achieving efficient and stable automated rounding machining, and improving the machining quality and consistency of boring tools.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHONGXUN (ZHUZHOU) PRECISION MASCH CO LTD
- Filing Date
- 2025-09-26
- Publication Date
- 2026-08-04
AI Technical Summary
Currently, the rounding of the cutting edge of boring tools is mostly done manually, which is inefficient and produces inconsistent quality, failing to meet the requirements for high precision and high reliability.
A fully automatic fixture for rounding the cutting edge of a boring tool was designed, including a mounting base plate, an adjusting plate, a base body, a support assembly, and a power assembly. The rotating core is driven by a servo motor, and combined with cylinder clamping and multi-angle adjustment, the automatic rounding machining of the boring tool cutting edge is realized.
It improves the production efficiency of boring machine, ensures the quality stability and batch consistency of products, and realizes efficient and automated rounding machining.
Smart Images

Figure CN224587542U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of boring tool processing technology, specifically a fully automatic clamp for rounding the cutting edge of a boring tool. Background Technology
[0002] Boring tools are indispensable key tools in the field of hole finishing. They are usually used on boring machines, lathes or machining centers. In the current era of widespread industrial automation, the forming and grinding process of boring tools on automatic grinding machines has been widely used.
[0003] Rounding the cutting edge of a boring bar is a key technology for balancing the sharpness and strength of the cutting edge to achieve high-precision, long-life, and high-reliability machining. However, the rounding of the boring bar tip is mostly done manually or by clamping it manually, which is not only inefficient but also cannot achieve stable quality. Therefore, this utility model proposes a fully automatic fixture for rounding the cutting edge of a boring bar that can solve the above problems. Utility Model Content
[0004] The purpose of this invention is to provide a fixture for rounding the cutting edge of a fully automatic boring tool, so as to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a fully automatic boring tool cutting edge rounding fixture, comprising:
[0006] Install base plate;
[0007] An adjustment plate is located at the upper end of the mounting base plate, and the adjustment plate can be adjusted to change the horizontal angle.
[0008] The base is fixedly connected to the adjustment plate, and the base is connected to a top plate via a pivot assembly;
[0009] The support assembly includes a mounting sleeve disposed on the upper end of the top plate, one end of the mounting sleeve is connected to a mounting bracket, a rotating core is rotatably passed through the mounting sleeve, one end of the rotating core extends to the mounting bracket and is connected to a transmission wheel, and the other end of the rotating core is connected to a support block, the support block has a groove for placing a boring tool, and the support block is provided with a clamping part for clamping the boring tool.
[0010] The power unit is connected to the transmission wheel and is used to drive the rotating core to rotate and drive the boring tool to different directions.
[0011] As a preferred technical solution, the mounting base plate is provided with an arc groove, and the adjusting plate is connected to an arc block that slides and engages with the arc groove.
[0012] As a preferred technical solution, a pointer is provided at the upper end of the mounting base plate, the adjusting plate is connected to a traction plate, and the upper surface of the traction plate has angle scale lines for the pointer to indicate.
[0013] As a preferred technical solution, the bottom wall of the arc groove is provided with multiple sets of positioning holes, the traction plate is provided with a waist groove, and a limit block is provided at the upper end of the traction plate. The limit block is provided with a positioning bolt, which can pass through the waist groove and be inserted into a set of positioning holes.
[0014] As a preferred technical solution, the clamping part includes a pressure plate connecting rod and a vertical cylinder, the pressure plate connecting rod is hinged to the support block, and the movable rod of the vertical cylinder is connected to the pressure plate connecting rod.
[0015] As a preferred technical solution, the clamping part further includes a straight groove and a transverse cylinder. The straight groove is connected to the receiving groove, and the transverse cylinder is connected to a push rod, which is located inside the straight groove.
[0016] As a preferred technical solution, the power assembly includes a support frame connected to the mounting bracket via multiple connectors, a servo motor mounted on the support frame, a drive wheel connected to the output shaft of the servo motor, and a transmission belt fitted onto the drive wheel and the transmission wheel.
[0017] As a preferred technical solution, the top plate is slidably fitted with the base body, and the pivoting assembly includes a worm gear disposed on the base body and a worm wheel disposed on the top plate, wherein the worm gear meshes with the worm wheel.
[0018] Compared with the prior art, the beneficial effects of this utility model are:
[0019] When machining boring tools, after clamping and fixing the boring tool, multiple angle adjustments can be made to adapt to the rounding of the cutting edge. This not only improves production efficiency and reduces labor, but also ensures the stability of quality and the consistency of product batches, thus advancing the grinding process of boring tool production. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0021] Figure 2 This is a schematic diagram of the power component structure of this utility model;
[0022] Figure 3 This is a schematic diagram of the clamping part structure of this utility model;
[0023] Figure 4 This is a schematic diagram of the base of this utility model connected to the top plate via a pivot assembly;
[0024] In the diagram: 10. Mounting base plate; 11. Pointer; 20. Adjusting plate; 21. Traction plate; 211. Waist groove; 22. Limiting block; 30. Seat body; 31. Worm gear; 32. Worm wheel; 40. Top plate; 41. Mounting bracket; 411. Cover body; 42. Mounting sleeve; 43. Rotating core; 44. Support block; 441. Pressure plate connecting rod; 442. Vertical cylinder; 443. Horizontal cylinder; 444. Support rod; 445. Boring tool; 45. Transmission wheel; 46. Support frame; 47. Servo motor; 48. Drive wheel; 49. Transmission belt. Detailed Implementation
[0025] 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.
[0026] Please see Figure 1-4
[0027] A fixture for rounding the cutting edge of a fully automatic boring tool is provided:
[0028] It includes a mounting base plate 10, an adjustment plate 20, a seat 30, a support assembly, and a power assembly. The mounting base provides overall support, and the mounting base plate 10 has multiple sets of mounting holes, which can be fastened to the work platform by screws and other connecting parts.
[0029] Please see Figure 1 , Figure 2 The adjusting plate 20 is located on the upper end of the mounting base plate 10. The seat body 30 is fixedly connected to the adjusting plate 20. The seat body 30 is connected to the top plate 40 through a pivot assembly. The support assembly includes a mounting sleeve 42 set on the upper end of the top plate 40. One end of the mounting sleeve 42 is connected to a mounting bracket 41. The mounting sleeve 42 is rotatably connected to a rotating core 43. One end of the rotating core 43 extends to the mounting bracket 41 and is connected to a transmission wheel 45. The other end of the rotating core 43 is connected to a support block 44. The support block 44 has a groove for placing a boring bar 445. The shank end of the boring bar 445 is placed in the groove, and the cutting edge end of the boring bar 445 extends out of the groove.
[0030] Please see Figure 1 , Figure 3 The support block 44 is provided with a clamping part for clamping the boring bar 445. The clamping part clamps the shank end of the boring bar 445, so that the cutting edge of the boring bar 445 can be rounded.
[0031] The clamping part includes a pressure plate connecting rod 441, a vertical cylinder 442, a straight groove, and a horizontal cylinder 443. The pressure plate connecting rod 441 is hinged to the support block 44. The movable rod of the vertical cylinder 442 is connected to the pressure plate connecting rod 441. The straight groove is connected to the receiving groove. The horizontal cylinder 443 is connected to a stop rod 444, which is located in the straight groove. During the clamping operation, the movable rod of the vertical cylinder 442 drives the pressure plate connecting rod 441 to rotate, so that the pressure plate connecting rod 441 presses against the upper part of the shank end of the boring bar 445. The horizontal cylinder 443 drives the stop rod 444 to abut against the side of the shank end of the boring bar 445, ensuring that the boring bar 445 is in a fixed state during machining and improving the machining quality.
[0032] Please see Figure 2 The power component is connected to the transmission wheel 45. The power component is used to drive the rotating core 43 to rotate and drive the boring tool 445 to different directions. The power component includes a support frame 46, on which a servo motor 47 is mounted. The output shaft of the servo motor 47 is connected to a drive wheel 48. A transmission belt 49 is fitted on the drive wheel 48 and the transmission wheel 45.
[0033] During processing, the rotation of the output shaft of the servo motor 47 causes the drive wheel 48 and the transmission wheel 45 to rotate the rotating core 43 under the drive of the transmission belt 49, thereby rotating the boring tool 445 to the angle to be ground (left or right). The servo motor 47 can be set to multiple station angle positions to achieve processing at different angles.
[0034] Please see Figure 2 The support frame 46 is connected to the mounting frame 41 by multiple connectors, preferably screws. The support frame 46 has multiple slots for screws to pass through. The diameter of the slots is larger than the diameter of the screws. By loosening the screws and moving the support frame 46, the tension of the transmission belt 49 can be adjusted. The support frame 46 is also equipped with a cover 411, which houses the drive wheel 48, the transmission wheel 45 and the transmission belt 49, providing protection.
[0035] Please see Figure 4 The adjusting plate 20 can be adjusted to adjust the horizontal angle. The mounting base plate 10 has an arc groove. The adjusting plate 20 is connected to an arc block that slides and fits into the arc groove. The upper end of the mounting base plate 10 is provided with a pointer 11. The adjusting plate 20 is connected to a traction plate 21. The upper surface of the traction plate 21 has an angle scale line for the pointer 11 to indicate. The bottom wall of the arc groove has multiple sets of positioning holes. The traction plate 21 has a waist groove 211. The upper end of the traction plate 21 is provided with a limit block 22. The limit block 22 is provided with a positioning bolt. The positioning bolt can pass through the waist groove 211 and be inserted into a set of positioning holes.
[0036] During processing, the adjusting plate 20 can be adjusted to change the horizontal angle, thereby driving the boring bar 445 to adjust the horizontal angle to adapt to the rounding of the cutting edge in different directions. During adjustment, first loosen the limit bolt, remove the pressure of the limit block 22 on the traction plate 21, and then pull the mounting base plate 10 to slide through the traction plate 21. During the sliding process, the arc block guides along the arc groove, and the angle reference is obtained through the angle scale line indicated by the pointer 11.
[0037] Please see Figure 4 The top plate 40 and the base 30 are slidably fitted together. The pivot assembly includes a worm 31 mounted on the base 30 and a worm wheel 32 mounted on the top plate 40. The worm 31 and the worm wheel 32 mesh with each other. The side of the top plate 40 has angle scale lines, and the side of the base 30 has an indicator. The worm 31 is connected to a rotating handle that extends out of the base 30. By operating the rotating handle, the worm 31 is rotated, which causes the worm wheel 32 to rotate the top plate 40, thereby adjusting the pitch angle of the boring tool 445. This further increases the adjustable range of the boring tool 445 angle and provides good machinability.
[0038] In summary, when machining boring tools, after clamping and fixing the boring tool, multiple angle adjustments can be made to adapt to the rounding of the cutting edge. This not only improves production efficiency and reduces labor, but also ensures the stability of quality and the consistency of product batches, thus advancing the grinding process of boring tool production.
[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A fixture for automatically rounding the cutting edge of a boring tool, characterized in that, include: Install base plate (10); An adjustment plate (20) is located at the upper end of the mounting base plate (10), and the adjustment plate (20) can be adjusted to adjust the horizontal angle. The seat (30) is fixedly connected to the adjustment plate (20), and the seat (30) is connected to the top plate (40) via a pivot assembly. The support assembly includes a mounting sleeve (42) disposed on the upper end of the top plate (40), one end of which is connected to a mounting bracket (41), and a rotating core (43) is rotatably passed through the mounting sleeve (42). One end of the rotating core (43) extends to the mounting bracket (41) and is connected to a transmission wheel (45). The other end of the rotating core (43) is connected to a support block (44), which has a groove for placing a boring bar (445) and a clamping part for clamping the boring bar (445) is provided on the support block (44). The power component is connected to the transmission wheel (45) and is used to drive the rotating core (43) to rotate and drive the boring tool (445) to different directions.
2. The fixture for rounding the cutting edge of a fully automatic boring tool according to claim 1, characterized in that, The mounting base plate (10) has an arc groove, and the adjusting plate (20) is connected to an arc block that slides and engages with the arc groove.
3. The fixture for rounding the cutting edge of a fully automatic boring tool according to claim 2, characterized in that, The mounting base plate (10) is provided with a pointer (11) at its upper end, and the adjustment plate (20) is connected to a traction plate (21). The upper surface of the traction plate (21) has an angle scale line for the pointer (11) to indicate.
4. The fixture for rounding the cutting edge of a fully automatic boring tool according to claim 3, characterized in that, The bottom wall of the arc groove is provided with multiple sets of positioning holes, the traction plate (21) is provided with a waist groove (211), and the upper end of the traction plate (21) is provided with a limit block (22). The limit block (22) is provided with a positioning bolt, which can pass through the waist groove (211) and be inserted into a set of positioning holes.
5. The fixture for rounding the cutting edge of a fully automatic boring tool according to claim 1, characterized in that, The clamping part includes a pressure plate connecting rod (441) and a vertical cylinder (442). The pressure plate connecting rod (441) is hinged to the support block (44), and the movable rod of the vertical cylinder (442) is connected to the pressure plate connecting rod (441).
6. The fixture for rounding the cutting edge of a fully automatic boring tool according to claim 5, characterized in that, The clamping part also includes a straight groove and a transverse cylinder (443). The straight groove is connected to the receiving groove, and the transverse cylinder (443) is connected to a push rod (444). The push rod (444) is located in the straight groove.
7. The fixture for rounding the cutting edge of a fully automatic boring tool according to claim 1, characterized in that, The power assembly includes a support frame (46) connected to the mounting bracket (41) via multiple connectors. A servo motor (47) is mounted on the support frame (46). The output shaft of the servo motor (47) is connected to a drive wheel (48). A drive belt (49) is fitted on the drive wheel (48) and the transmission wheel (45).
8. The fixture for rounding the cutting edge of a fully automatic boring tool according to claim 1, characterized in that, The top plate (40) is slidably engaged with the seat (30), and the pivot assembly includes a worm (31) disposed on the seat (30) and a worm wheel (32) disposed on the top plate (40), wherein the worm (31) and the worm wheel (32) mesh with each other.