Quick polishing tooling for numerical control lathe
By designing a rapid grinding fixture for CNC lathes, the outer cylindrical surface and end face of workpieces are automatically ground using a sanding belt and grinding rod. This solves the problem of difficult-to-control grinding accuracy in traditional methods, improves grinding accuracy and product qualification rate, and reduces labor intensity.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIAXING KAITIAN TRANSMISSION TECH CO LTD
- Filing Date
- 2025-07-14
- Publication Date
- 2026-07-10
AI Technical Summary
Traditional CNC lathe surface grinding has the problems of high work intensity and difficulty in controlling grinding accuracy, resulting in low grinding accuracy and low product qualification rate.
A CNC lathe rapid grinding fixture was designed, comprising a fixture mechanism, a first grinding mechanism, and a second grinding mechanism. The CNC lathe drives the chuck to rotate, and in combination with a motor-driven sanding belt and a pneumatically driven grinding rod, the outer cylindrical surface and end face of the workpiece are automatically ground.
It achieves efficient grinding of the outer cylindrical surface and end face of the workpiece, significantly improving grinding accuracy and product qualification rate, while reducing labor intensity and avoiding the shortcomings of traditional manual grinding.
Smart Images

Figure CN224476006U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of grinding tooling technology, and specifically relates to a rapid grinding tooling for CNC lathes. Background Technology
[0002] CNC lathes are among the most widely used CNC machine tools. They are mainly used for cutting the inner and outer cylindrical surfaces, inner and outer conical surfaces with arbitrary cone angles, complex rotating inner and outer curved surfaces, and cylindrical and conical threads of shaft or disc parts. However, traditional CNC lathes mainly focus on cutting, and the workpiece surface usually needs to be manually polished using grinding equipment.
[0003] Traditional manual grinding of the outer cylindrical surface and end face of workpieces is labor-intensive and difficult to control grinding accuracy, thus reducing grinding accuracy and product qualification rate. To solve the above problems, we provide a CNC lathe rapid grinding fixture. Utility Model Content
[0004] The purpose of this invention is to provide a rapid grinding fixture for CNC lathes to solve the problems mentioned in the background art, such as the high workload and difficulty in controlling grinding accuracy when grinding the outer cylindrical surface and end face of workpieces manually, which reduces grinding accuracy and product qualification rate.
[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a CNC lathe quick grinding fixture, including a CNC lathe, wherein the chuck of the CNC lathe is provided with a clamping mechanism, the tool post slide of the CNC lathe is bolted with a slide plate, and the top of the slide plate is provided with a first grinding mechanism and a second grinding mechanism.
[0006] The first grinding mechanism includes a fixed base, the top of the slide plate is bolted to the fixed base, a motor is bolted to the top of the fixed base, a drive wheel is fixedly connected to the output end of the motor, a support arm is rotatably connected to one side of the fixed base, a driven wheel is rotatably connected to one side of the support arm, and a sanding belt is drivenly connected to the surfaces of the drive wheel and the driven wheel.
[0007] The second polishing mechanism includes a bracket, the bottom of which is bolted to a slide plate, and a pneumatic motor is bolted to the top of the bracket. The output end of the pneumatic motor is bolted to a polishing rod via a coupling.
[0008] Preferably, the support arm has an arc-shaped groove inside, and a limiting bolt is fitted inside the arc-shaped groove. One end of the limiting bolt is threadedly connected to the fixed seat.
[0009] Preferably, the clamping mechanism includes a disc, a rotating shaft is fixedly connected inside the disc, the chuck of the CNC lathe is engaged with one end of the rotating shaft, the other end of the rotating shaft is threadedly connected to a screw, the other end of the screw is fixedly connected to an end plate, and a fixing nut is threadedly connected to the surface of the screw.
[0010] Preferably, one side of the disc abuts against a workpiece, and one side of the workpiece abuts against a pressure plate. A fixing bolt is fitted inside the pressure plate, and one end of the fixing bolt is threadedly connected to the end plate.
[0011] This utility model has the following beneficial effects:
[0012] This device uses a CNC lathe to drive a chuck to rotate the workpiece. A motor drives a drive wheel to rotate, which in turn drives a sanding belt to grind the outer cylindrical surface of the workpiece through the cooperation of a driven wheel. Then, a pneumatic motor drives a grinding rod to grind the end face of the workpiece. This achieves efficient grinding of the outer cylindrical surface and end face of the workpiece, significantly improving grinding accuracy and product qualification rate, while reducing labor intensity and avoiding the problems of high labor intensity and difficulty in controlling accuracy in traditional manual grinding. Attached Figure Description
[0013] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;
[0014] Figure 2 This is a partial three-dimensional structural view of the present invention;
[0015] Figure 3 This is a partial three-dimensional structural view of the present invention;
[0016] Figure 4 This is a partial three-dimensional structural view of the present invention;
[0017] Figure 5 This is an exploded view of a partial structure of this utility model;
[0018] Figure 6 This is a partial three-dimensional structural view of this utility model.
[0019] Reference numerals: 1. CNC lathe; 2. Fixture mechanism; 21. Disc; 22. Rotating shaft; 23. Screw; 24. End plate; 25. Fixing nut; 26. Workpiece; 27. Pressure plate; 28. Fixing bolt; 3. Slide plate; 4. First grinding mechanism; 41. Fixed seat; 42. Motor; 43. Drive wheel; 44. Support arm; 45. Arc groove; 46. Limit bolt; 47. Driven wheel; 48. Sanding belt; 5. Second grinding mechanism; 51. Bracket; 52. Pneumatic motor; 53. Grinding rod. Detailed Implementation
[0020] The present invention will be further described in detail below with reference to the accompanying drawings.
[0021] Example 1:
[0022] refer to Figure 1-6 A CNC lathe quick grinding fixture includes a CNC lathe 1, a chuck of the CNC lathe 1 is provided with a clamping mechanism 2, a tool post slide of the CNC lathe 1 is bolted with a slide plate 3, and a first grinding mechanism 4 and a second grinding mechanism 5 are provided on the top of the slide plate 3.
[0023] The first grinding mechanism 4 includes a fixed base 41, the top of the slide plate 3 is bolted to the fixed base 41, a motor 42 is bolted to the top of the fixed base 41, a drive wheel 43 is fixedly connected to the output end of the motor 42, a support arm 44 is rotatably connected to one side of the fixed base 41, a driven wheel 47 is rotatably connected to one side of the support arm 44, and a sanding belt 48 is connected to the surface of the drive wheel 43 and the driven wheel 47.
[0024] The second polishing mechanism 5 includes a bracket 51, the bottom of which is bolted to the slide plate 3, and a pneumatic motor 52 is bolted to the top of the bracket 51. The output end of the pneumatic motor 52 is bolted to a polishing rod 53 via a coupling.
[0025] Specifically, the tool post slide of the CNC lathe 1 can drive the first grinding mechanism 4 and the second grinding mechanism 5 to move laterally and longitudinally through the slide plate 3. The CNC lathe 1 is a conventional technology, and its working principle will not be described in detail here. The number of driven wheels 47 is preferably two.
[0026] The device uses a CNC lathe 1 to drive the chuck, which in turn drives the workpiece 26 to rotate. A motor 42 drives the drive wheel 43 to rotate. The drive wheel 43, in conjunction with the driven wheel 47, drives the abrasive belt 48 to grind the outer cylindrical surface of the workpiece 26. Then, a pneumatic motor 52 drives the grinding rod 53 to grind the end face of the workpiece 26. This achieves efficient grinding of the outer cylindrical surface and end face of the workpiece 26, significantly improving grinding accuracy and product qualification rate. At the same time, it reduces labor intensity and avoids the problems of high labor intensity and difficulty in controlling accuracy in traditional manual grinding.
[0027] refer to Figure 3 The support arm 44 has an arc-shaped groove 45 inside, and a limiting bolt 46 is fitted inside the arc-shaped groove 45. One end of the limiting bolt 46 is threadedly connected to the fixed seat 41.
[0028] Specifically, by loosening the limiting bolt 46, the support arm 44 is pulled to adjust its angle through the cooperation of the arc groove 45, and then the limiting bolt 46 is tightened to limit the support arm 44, thereby allowing the sanding belt 48 to be adjusted in angle.
[0029] refer to Figure 5The clamping mechanism 2 includes a disc 21, a rotating shaft 22 is fixedly connected inside the disc 21, the chuck of the CNC lathe 1 is engaged with one end of the rotating shaft 22, the other end of the rotating shaft 22 is threadedly connected to a screw 23, the other end of the screw 23 is fixedly connected to an end plate 24, and a fixing nut 25 is threadedly connected to the surface of the screw 23.
[0030] Specifically, the screw 23 is rotated and moved inside the rotating shaft 22 by rotating the end plate 24, and the screw 23 is reinforced by tightening the fixing nut 25. The support can be adjusted according to the length of the workpiece 26.
[0031] refer to Figure 5 One side of the disc 21 abuts against the workpiece 26, and one side of the workpiece 26 abuts against the pressure plate 27. The pressure plate 27 is fitted with a fixing bolt 28, and one end of the fixing bolt 28 is threadedly connected to the end plate 24.
[0032] Specifically, by abutting the pressure plate 27 against the workpiece 26, and then tightening the fixing bolt 28 to connect it to the end plate 24, the fixing bolt 28 is used to press and limit the pressure plate 27, and it is also convenient to clamp and install the workpiece 26.
[0033] Brief description of the operation process: The CNC lathe 1 drives the chuck to rotate the workpiece 26. The start motor 42 drives the drive wheel 43 to rotate. The drive wheel 43 drives the sanding belt 48 to rotate through the cooperation of two driven wheels 47, so that the sanding belt 48 grinds the outer cylindrical surface of the workpiece 26. Then, the pneumatic motor 52 is started to drive the grinding rod 53 to grind the end face of the workpiece 26, thereby effectively and quickly grinding the outer cylindrical surface and end face of the workpiece 26.
[0034] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.
Claims
1. A CNC lathe rapid grinding fixture, comprising a CNC lathe (1), characterized in that: The chuck of the CNC lathe (1) is equipped with a clamping mechanism (2), and the tool post slide of the CNC lathe (1) is bolted with a slide plate (3). The top of the slide plate (3) is equipped with a first grinding mechanism (4) and a second grinding mechanism (5). The first grinding mechanism (4) includes a fixed seat (41), the top of the slide (3) is bolted to the fixed seat (41), a motor (42) is bolted to the top of the fixed seat (41), a drive wheel (43) is fixedly connected to the output end of the motor (42), a support arm (44) is rotatably connected to one side of the fixed seat (41), a driven wheel (47) is rotatably connected to one side of the support arm (44), and a sanding belt (48) is connected to the surface of the drive wheel (43) and the driven wheel (47). The second grinding mechanism (5) includes a bracket (51), the bottom of which is bolted to the slide plate (3), and a pneumatic motor (52) is bolted to the top of the bracket (51). The output end of the pneumatic motor (52) is bolted to a grinding rod (53) via a coupling.
2. The CNC lathe rapid grinding fixture according to claim 1, characterized in that: The arm (44) has an arc-shaped groove (45) inside, and a limiting bolt (46) is fitted inside the arc-shaped groove (45). One end of the limiting bolt (46) is threadedly connected to the fixed seat (41).
3. The CNC lathe rapid grinding fixture according to claim 1, characterized in that: The clamping mechanism (2) includes a disc (21), a rotating shaft (22) is fixedly connected inside the disc (21), the chuck of the CNC lathe (1) is engaged with one end of the rotating shaft (22), the other end of the rotating shaft (22) is threadedly connected to a screw (23), the other end of the screw (23) is fixedly connected to an end plate (24), and a fixing nut (25) is threadedly connected to the surface of the screw (23).
4. The CNC lathe rapid grinding fixture according to claim 3, characterized in that: One side of the disc (21) abuts against a workpiece (26), and one side of the workpiece (26) abuts against a pressure plate (27). A fixing bolt (28) is fitted inside the pressure plate (27), and one end of the fixing bolt (28) is threadedly connected to the end plate (24).