An auxiliary cutting device for ball screw

Abstract

This utility model discloses an auxiliary cutting device for ball screws, belonging to the field of ball screw technology. It includes: a fixed plate and an auxiliary plate mounted on a machine tool. A quick-change mounting plate is provided on the fixed plate, a feed mechanism is mounted on the quick-change mounting plate, a clamping mechanism is mounted on the feed mechanism, and a positioning mechanism is provided on the auxiliary plate. This application achieves online cutting of the ball screw through the cooperation of the feed mechanism and a digital display mechanism. The digital display mechanism can accurately display the moving distance of the feed mechanism in real time, greatly reducing reading errors compared to the traditional method of relying on handwheel readings. It can precisely control the cutting length, meeting high-precision machining requirements and effectively improving product quality.

Description

Technical Field

[0001] This utility model belongs to the field of ball screw technology, and in particular to an auxiliary cutting device for ball screws. Background Technology

[0002] Ball screws are precision components in machine tools, generally used to convert rotary motion into linear motion. High-precision transmission typically uses ground ball screws, which are usually machined as a single, finished product. Some ground ball screws require cutting according to user requirements. Due to the high precision requirements for grinding ball screw cutting, the current method involves single-screw cutting, with the required length determined by the handwheel reading on the wire cutting machine. This method suffers from low efficiency, susceptibility to handwheel reading errors, and difficulty in guaranteeing the accuracy after cutting. Utility Model Content

[0003] Purpose of the utility model: To provide an auxiliary cutting device for ball screws to solve the above-mentioned problems existing in the prior art.

[0004] Technical solution: An auxiliary cutting device for a ball screw, comprising: a fixed plate and an auxiliary plate mounted on a machine tool, wherein a quick-change mounting plate is provided on the fixed plate, a feed mechanism is mounted on the quick-change mounting plate, a clamping mechanism is mounted on the feed mechanism, and a positioning mechanism is provided on the auxiliary plate.

[0005] Furthermore, the clamping mechanism includes: a V-shaped base, which is mounted on the feeding mechanism, and a clamping member connected to the V-shaped base by bolts. Both the V-shaped base and the clamping member are provided with multiple V-shaped grooves for positioning the workpiece.

[0006] Furthermore, the feeding mechanism includes: a threaded screw pair, a handwheel is provided at one end of the threaded rod of the threaded screw pair, and a V-shaped base is provided on the slider of the threaded screw pair.

[0007] Furthermore, the lead screw assembly is provided with a digital display mechanism for displaying the slider position of the lead screw assembly.

[0008] Furthermore, the digital display mechanism includes: a grating ruler, which is mounted on the base of the lead screw pair, and the digital display grating head is mounted on the slider of the lead screw pair via a connecting plate.

[0009] Furthermore, the positioning mechanism includes a positioning plate, which is slidably mounted on the auxiliary plate for positioning the end of the workpiece.

[0010] Furthermore, a long key is provided at the bottom of the positioning plate, and a sliding groove is provided on the upper surface of the auxiliary plate, with the long key placed in the sliding groove.

[0011] Furthermore, a positioning surface is provided at the upper end of the positioning plate.

[0012] Furthermore, the quick-change mounting plate is mounted on the fixed plate by a fixing pin.

[0013] Furthermore, a rubber buffer layer is provided on the V-groove.

[0014] Beneficial effects:

[0015] High-precision cutting: Ball screw cutting is achieved online through the cooperation of the feed mechanism and the digital display mechanism. The digital display mechanism can accurately display the movement distance of the feed mechanism in real time. Compared with the traditional method of relying on handwheel reading, it greatly reduces reading errors, can accurately control the cutting length, meet the requirements of high-precision machining, and effectively improve product quality.

[0016] Significantly improved processing efficiency: The clamping mechanism features multiple V-grooves, supporting simultaneous positioning and processing of multiple workpieces. Compared to traditional single-workpiece cutting methods, this significantly reduces processing time, allowing for the completion of more workpiece cutting tasks within the same timeframe. This effectively improves production efficiency, reduces production costs, and better suits the requirements of mass production.

[0017] Easy and flexible installation: The entire unit can be quickly installed using locating pins. The quick-change mounting plate connects to the fixed plate with locating pins, allowing for rapid disassembly and installation when the unit needs to be replaced or maintained. This reduces equipment downtime, improves equipment efficiency, enhances the flexibility of the unit, and allows companies to quickly switch equipment according to different production needs. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a structural schematic diagram of the positioning mechanism of this utility model. Detailed Implementation

[0020] In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. However, it will be apparent to those skilled in the art that the present invention can be practiced without one or more of these details. In other instances, certain technical features well-known in the art have not been described in order to avoid confusion with the present invention.

[0021] Example: Figures 1-2As shown, an auxiliary cutting device for a ball screw includes: a fixed plate 1 and an auxiliary plate 2 mounted on a machine tool. A quick-change mounting plate 3 is provided on the fixed plate 1, a feed mechanism 5 is mounted on the quick-change mounting plate 3, a clamping mechanism 6 is mounted on the feed mechanism 5, and a positioning mechanism 7 is provided on the auxiliary plate 2. The clamping mechanism 6 includes: a V-shaped base 62, which is mounted on the feed mechanism 5. A clamping member 61 is connected to the V-shaped base 62 by bolts. Both the V-shaped base 62 and the clamping member 61 are provided with multiple V-shaped grooves 63 for positioning the workpiece. The feed mechanism 5 includes: a threaded screw assembly 51, with a handwheel 52 at one end of the threaded rod. The slider of the threaded screw assembly 51 is provided with the V-shaped base 62. The threaded screw assembly 51 is provided with a digital display mechanism 4 for displaying the slider position of the threaded screw assembly 51. The digital display mechanism 4 includes: a grating ruler 41, which is mounted on the base of the lead screw assembly 51; and a digital display grating head 42, which is mounted on the slider of the lead screw assembly 51 via a connecting plate 43. The positioning mechanism 7 includes: a positioning plate 71, which is slidably mounted on the auxiliary plate 2 for positioning the end of the workpiece. A long key 72 is provided at the bottom of the positioning plate 71, and a sliding groove 73 is provided on the upper surface of the auxiliary plate 2, within which the long key 72 is placed. A positioning surface 74 is provided at the upper end of the positioning plate 71. The quick-change mounting plate 3 is mounted on the fixed plate 1 via a fixing pin. A rubber buffer layer is provided on the V-groove 63.

[0022] The fixed plate 1 is the basic support component of the entire auxiliary cutting device. Mounted on the machine tool, it provides a stable mounting platform for other components. It has locating pin holes for connecting with the quick-change mounting plate 3, ensuring the accurate positioning of the quick-change mounting plate 3 on the fixed plate 1, thus guaranteeing the stability of the entire device during machine tool operation. The stable support provided by the fixed plate 1 allows the entire cutting device to remain stable during machine tool operation, preventing vibrations that could affect cutting accuracy. The cooperation between the locating pin holes and the quick-change mounting plate 3 enables quick and accurate installation of the quick-change mounting plate 3, improving the overall installation efficiency and positioning accuracy of the device. The auxiliary plate 2 is also mounted on the machine tool, cooperating with the fixed plate 1 to jointly support the entire cutting device. It has a positioning mechanism 7 that provides a positioning reference for the workpiece end, ensuring the workpiece's positional accuracy during cutting. The sliding groove 73 on the auxiliary plate 2 cooperates with the long key 72 at the bottom of the positioning plate 71, allowing the positioning plate 71 to slide on the auxiliary plate 2, thus keeping one end flush.

[0023] The auxiliary plate 2 works in conjunction with the fixed plate 1, enhancing the stability of the entire device. Its support and cooperation with the positioning mechanism 7 ensures that the workpiece can be quickly and accurately positioned before cutting, guaranteeing subsequent high-precision cutting. The quick-change mounting plate 3 is mounted on the fixed plate 1 via fixing pins, enabling quick connection and disassembly. It provides a mounting position for the feed mechanism 5, ensuring its stable installation on the fixed plate 1. Furthermore, when device replacement or maintenance is required, the quick-change mounting plate 3, containing components such as the feed mechanism 5, can be quickly removed from the fixed plate 1. The quick-change function of the mounting plate 3 greatly improves the device's flexibility and ease of maintenance. During production, if it is necessary to replace cutting devices of different specifications or perform maintenance, the mounting plate can be quickly replaced, reducing downtime and improving production efficiency. Simultaneously, its tight connection with the fixed plate 1 ensures the stability of components such as the feed mechanism 5 during operation, thereby guaranteeing cutting accuracy. The digital display mechanism 4 mainly consists of a grating ruler 41 and a digital grating head 42. The grating ruler 41 is mounted on the base of the lead screw assembly 51, and the digital grating head 42 is mounted on the slider of the lead screw assembly 51 via a connecting plate 43. Its function is to display the slider position of the lead screw assembly 51 in real time, thereby precisely controlling the movement distance of the clamping mechanism 6 and achieving precise control of the workpiece cutting length. The application of the digital display mechanism 4 allows operators to intuitively and accurately read the movement distance of the clamping mechanism 6, greatly improving the control accuracy of the cutting length compared to the traditional handwheel reading method. By precisely controlling the cutting length, the cutting length deviation caused by reading errors is effectively reduced, improving the cutting quality of the ball screw and meeting the requirements of high-precision cutting. The feed mechanism 5 includes the lead screw assembly 51 and a handwheel 52. The handwheel 52 is installed at one end of the threaded rod of the lead screw assembly 51, and a V-shaped base 62 is installed on the slider. When the handwheel 52 is turned, the threaded rod of the lead screw pair 51 is rotated, which in turn causes the slider to move along the guide rail of the lead screw pair 51, realizing the feed motion of the clamping mechanism 6 and adjusting the cutting position of the workpiece. The feed mechanism 5 provides precise feed motion for the clamping mechanism 6. The operator can easily control the movement of the clamping mechanism 6 by turning the handwheel 52 to achieve precise adjustment of the workpiece cutting position. This manual operation method is simple and easy to implement and can meet the needs of different cutting lengths. At the same time, in conjunction with the digital display mechanism 4, the movement distance of the clamping mechanism 6 can be controlled more precisely, improving the cutting accuracy. The clamping mechanism 6 consists of a V-shaped base 62 and a clamping member 61. The V-shaped base 62 is mounted on the slider of the feed mechanism 5, and the clamping member 61 is connected to the V-shaped base 62 by bolts. Both the V-shaped base 62 and the clamping member 61 are provided with multiple V-shaped grooves 63 for positioning the workpiece.Its main function is to clamp the workpiece. Through the contact between the V-groove 63 and the workpiece, circumferential positioning of the workpiece is achieved, ensuring that the workpiece does not rotate during cutting. Then, by tightening the clamping member 61 with bolts, the workpiece is firmly fixed to the V-shaped base 62, preventing displacement during cutting. The V-groove 63 design of the clamping mechanism 6 can well adapt to the circular shape of the ball screw, achieving precise positioning of the workpiece and ensuring the positional accuracy of the workpiece during cutting. The setting of multiple V-grooves 63 allows for the simultaneous clamping of multiple workpieces, enabling simultaneous processing of multiple workpieces and greatly improving processing efficiency. Furthermore, the clamping member 61, connected by bolts, provides sufficient clamping force to ensure the workpiece remains stable during cutting, preventing workpiece loosening from affecting cutting quality. The positioning mechanism 7 includes a positioning plate 71, which is slidably mounted on the auxiliary plate 2. Its main function is to position the end of the workpiece. When clamping the workpiece, the positioning plate 71 is moved to a suitable position, so that the end of the workpiece is tightly against the positioning plate 71, providing an accurate positioning reference for the workpiece and ensuring the length accuracy of the workpiece after cutting. The long key 72 at the bottom of the positioning plate 71 cooperates with the sliding groove 73 on the upper surface of the auxiliary plate 2 to realize the sliding function of the positioning plate 71; the positioning surface 74 set at the upper end of the positioning plate 71 directly contacts the end of the workpiece, playing a positioning role. The positioning mechanism 7 effectively improves the positioning accuracy of the workpiece before cutting, ensuring that the length of the cut workpiece meets the requirements. Its sliding structure design allows the positioning plate 71 to be flexibly adjusted according to workpieces of different lengths, improving the adaptability of the device to workpieces of different specifications. The design of the positioning surface 74 ensures good contact with the end of the workpiece, further improving the positioning accuracy.

[0024] Work process

[0025] Preparation stage: Then install the quick-change mounting plate 3 on the fixed plate 1 using the fixing pin, and install the positioning plate 71 on the auxiliary plate 2 to complete the basic installation of the device.

[0026] Positioning and clamping the workpiece: Slide the positioning plate 71 along the slide groove 73 on the auxiliary plate 2 to a suitable position. Place multiple ball screws to be cut into the V-groove 63 of the V-shaped base 62 of the clamping mechanism 6, ensuring that the outer circle of the workpiece is in full contact with the V-groove 63 and that the ends of the multiple workpieces are tightly against the positioning surface 74 of the positioning plate 71. Then, connect and tighten the clamping member 61 to the V-shaped base 62 with bolts, so that the clamping member 61 firmly presses the workpiece, ensuring that the workpiece will not shift during the cutting process. At this point, the workpiece clamping is complete.

[0027] Cutting Operation: Remove the positioning plate 71 and move the wire EDM wire to touch the workpiece end face. Then, press the "zero" key on the digital display screen 42 to reset the reading of the digital display mechanism 4 to zero. Rotate the handwheel 52 of the feed mechanism 5 according to the required workpiece length. The handwheel 52 drives the threaded rod of the lead screw pair 51 to rotate, causing the slider equipped with the clamping mechanism 6 to move along the guide rail of the lead screw pair 51. During the slider's movement, the grating ruler 41 and the digital display grating head 42 of the digital display mechanism 4 monitor the slider's position in real time and display it on the digital display screen 42. When the reading on the digital display screen 42 reaches the required cutting length, stop rotating the handwheel 52 and tighten the locking bolt on the lead screw pair 51 (if applicable) to prevent the slider from continuing to move, thus completing the workpiece positioning. Finally, start the wire EDM machine, position the wire EDM electrode wire, and begin cutting the workpiece.

[0028] Processing complete: After cutting, release the clamping element 61 of the clamping mechanism 6 and remove the cut workpiece. If it is necessary to continue processing the next batch of workpieces, the clamping, positioning, and cutting can be performed according to the above steps. If it is necessary to replace the cutting device or perform maintenance on the device, the quick-change mounting plate 3 can be removed from the fixed plate 1 by disassembling the fixing pin and performing the corresponding operations.

[0029] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the specific details of the above embodiments. Within the scope of the technical concept of the present invention, various equivalent transformations can be made to the technical solutions of the present invention, and all such equivalent transformations fall within the protection scope of the present invention.

Claims

1. An auxiliary cutting device for a ball screw, characterized in that, include: A fixed plate (1) and an auxiliary plate (2) are installed on the machine tool. The fixed plate (1) is provided with a quick-change mounting plate (3), the quick-change mounting plate (3) is provided with a feed mechanism (5), the feed mechanism (5) is provided with a clamping mechanism (6), and the auxiliary plate (2) is provided with a positioning mechanism (7).

2. The auxiliary cutting device for a ball screw according to claim 1, characterized in that, The clamping mechanism (6) includes: a V-shaped base (62), which is mounted on the feeding mechanism (5), and a clamping member (61) connected to the V-shaped base (62) by bolts. Both the V-shaped base (62) and the clamping member (61) are provided with a plurality of V-shaped grooves (63) for positioning the workpiece.

3. The auxiliary cutting device for a ball screw according to claim 2, characterized in that, The feeding mechanism (5) includes: a threaded screw pair (51), a handwheel (52) is provided at one end of the threaded rod of the threaded screw pair (51), and a V-shaped base (62) is provided on the slider of the threaded screw pair (51).

4. The auxiliary cutting device for a ball screw according to claim 3, characterized in that, The lead screw assembly (51) is provided with a digital display mechanism (4) for displaying the position of the slider of the lead screw assembly (51).

5. The auxiliary cutting device for a ball screw according to claim 4, characterized in that, The digital display mechanism (4) includes: a grating ruler (41), which is mounted on the base of the threaded screw pair (51), and a digital display grating head (42) is mounted on the slider of the threaded screw pair (51) via a connecting plate (43).

6. The auxiliary cutting device for a ball screw according to claim 1, characterized in that, The positioning mechanism (7) includes a positioning plate (71), which is slidably mounted on the auxiliary plate (2) for positioning the end of the workpiece.

7. The auxiliary cutting device for a ball screw according to claim 6, characterized in that, The positioning plate (71) has a long key (72) at its bottom, and the auxiliary plate (2) has a groove (73) on its upper surface, with the long key (72) placed in the groove (73).

8. The auxiliary cutting device for a ball screw according to claim 6, characterized in that, The positioning plate (71) has a positioning surface (74) on its upper end.

9. The auxiliary cutting device for a ball screw according to claim 1, characterized in that, The quick-change mounting plate (3) is mounted on the fixed plate (1) by a fixing pin.

10. The auxiliary cutting device for a ball screw according to claim 2, characterized in that, A rubber buffer layer is provided on the V-groove (63).

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