A machine tool spindle servo variable speed device

Abstract

The utility model discloses a machine tool main shaft servo speed changer relates to machine tool equipment technical field, and a machine tool main shaft servo speed changer includes guide device, and the guide device front end is provided with drive arrangement, and drive arrangement includes servo motor and sensor, and sensor sets up on drive arrangement upper end, and with servo motor electric connection, drive arrangement right side is provided with screw rod, and screw rod rear end with servo motor output end bolt connection, and screw rod front end is provided with nut, and the nut outside is provided with yoke, and yoke front end is provided with quick -release module, and quick -release module front end is provided with speed change module, and the scheme provides the solution to the problem that the existing machine tool gear shifting is through manual yoke to shift, and speed change block is easy to damage.

Description

Technical Field

[0001] This utility model relates to the field of machine tool equipment technology, specifically to a machine tool spindle servo speed change device. Background Technology

[0002] Machine tools are indispensable tools in manufacturing, primarily used to process metal materials to obtain the required geometric shapes, dimensional accuracy, and surface quality. Based on their function and application, machine tools can be categorized into metal cutting machine tools, forging and pressing machine tools, and woodworking machine tools, among others. The development of the machine tool industry has not only driven progress in machinery manufacturing but also plays a vital role in consumer electronics, the automotive industry, machinery manufacturing, electrical equipment, railway locomotives, shipbuilding, defense industry, and aerospace. With technological advancements, machine tools are evolving towards automation, intelligence, and flexible manufacturing to meet the demands of modern industry for high-precision, high-efficiency, and diversified production.

[0003] A machine tool spindle, as disclosed in publication number CN211360668U, comprises a spindle housing, a spindle body, a cutting head mounted at the front of the spindle body, a cooling channel within the spindle body, a spray assembly for spraying coolant at the front of the spindle body, a sealed reservoir within the spindle housing for storing coolant, and multiple first inlet units on the spindle body. The spindle body can pass through the reservoir, and the first inlet units are located within the reservoir. This machine tool spindle, through the arrangement of the reservoir, first inlet units, cooling channel, and cooling mechanism, can simultaneously cool the cutting head, workpiece, and spindle body. Furthermore, the arrangement of the first drainage section, first blocking section, and first inlet channel allows the coolant to flow smoothly into the spindle body during rotation, eliminating the need for a separate drive structure and greatly simplifying the overall structure of the device.

[0004] In the operation of the above-mentioned device, the existing machine tool gear shifting is done manually by shifting gears with a shift fork, and the gear shift block is prone to damage; therefore, we propose a machine tool spindle servo speed change device to solve the problems mentioned above. Utility Model Content

[0005] The purpose of this utility model is to provide a machine tool spindle servo speed change device to solve the problem mentioned in the background art that the existing machine tool gear shifting is done by manually shifting forks and the speed change block is easily damaged.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a machine tool spindle servo speed change device, including a guide device, a drive device at the front end of the guide device, the drive device including a servo motor and a sensor, the sensor being disposed at the upper end of the drive device and electrically connected to the servo motor, a screw being disposed on the right side of the drive device, the rear end of the screw being bolted to the output end of the servo motor, a nut being disposed at the front end of the screw, a shift fork being disposed on the outside of the nut, a quick-release module being disposed at the front end of the shift fork, and a speed change module being disposed at the front end of the quick-release module.

[0007] Preferably, the guiding device includes a slide rail and a support base. Two sets of support bases are provided and symmetrically arranged on the left and right sides of the slide rail, and are assembled and connected to the slide rail.

[0008] Preferably, the rear end of the shift fork is disposed inside the slide rail, and the front end of the shift fork is disposed outside the nut and is fixedly connected to the nut.

[0009] Preferably, the speed change module includes speed change gears and a connecting rod, wherein two sets of speed change gears are provided and are symmetrically arranged inside the connecting rod.

[0010] Preferably, the inner sides of the opposing surfaces of the gears are provided with mating grooves.

[0011] Preferably, the quick-release module includes a fixed bracket, a movable bracket, a guide block, a guide groove, a segmented bearing, and a segmented gear shifting block. The fixed bracket is located on the lower side of the front end of the shift fork. A guide groove is provided on the upper end of the fixed bracket. A movable bracket is provided on the upper end of the fixed bracket. A guide block is provided at the rear end of the movable bracket. The movable bracket is guided and connected to the guide groove in the fixed bracket through the guide block. Segmented bearings are provided in the fixed bracket and the movable bracket. Segmented gear shifting blocks are provided in the segmented bearings. The segmented bearings and segmented gear shifting blocks are connected. The left and right sides of the segmented gear shifting blocks are connected to the inner sides of the opposing surfaces of the gears through mating grooves.

[0012] Preferably, the upper rear side of the fixed card seat is provided with a pin groove, the pin groove is provided with a threaded groove, the upper rear side of the movable card seat is provided with a pin, the lower end of the pin is provided with a thread, and the pin is threadedly connected to the pin groove through the thread at the lower end.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] (1) This utility model changes the manual gear to the automatic gear, and drives the shift fork to move left and right in the slide rail by the servo motor. This causes the segmented speed change block set at the front end of the shift fork to connect with the two sets of speed change gears in one go, thereby realizing the function of automatic adjustment and shifting. When it cannot be inserted, the sensor will feed back to the servo motor, and the system controls the servo motor to move backward and then reconnect it, which plays a role in protecting the parts. This solves the problem that the existing machine tool shifting is done by manually shifting the shift fork.

[0015] (2) By setting the gear shift block to a segmented structure, and using segmented bearings and movable card seats, the gear shift block can be quickly disassembled and the parts can be quickly replaced when it is damaged, thus solving the problem of the gear shift block being easily damaged. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a top view of the present invention;

[0018] Figure 3 This is a cross-sectional view of the present invention;

[0019] Figure 4 This is an enlarged view of the quick-release module of this utility model.

[0020] In the diagram: 1. Guide device; 2. Drive device; 3. Screw; 4. Slide rail; 5. Shift fork; 6. Quick release module; 7. Speed ​​change module; 8. Speed ​​change gear; 9. Nut; 10. Guide groove; 11. Fixed bracket; 12. Movable bracket; 13. Guide block; 14. Pin; 15. Pin groove; 16. Connecting groove; 17. Segmented bearing; 18. Segmented speed change block. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Please see Figure 1-4This utility model provides an embodiment of a machine tool spindle servo speed change device, including a guide device 1. A drive device 2 is located at the front end of the guide device 1. The drive device 2 includes a servo motor and a sensor. The sensor is located on the upper end of the drive device 2 and electrically connected to the servo motor. A screw 3 is located on the right side of the drive device 2. The rear end of the screw 3 is bolted to the output end of the servo motor. A nut 9 is located at the front end of the screw 3. A shift fork 5 is located outside the nut 9. A quick-release module 6 is located at the front end of the shift fork 5. A speed change module 7 is located at the front end of the quick-release module 6. By switching from manual to automatic mode, the servo motor drives the shift fork 5. The fork moves left and right within the slide rail 4, thereby driving the segmented speed-changing block 18 at the front end of the shift fork 5 to connect with the two sets of speed-changing gears 8 in a single connection, thus achieving automatic gear shifting. If it cannot be inserted, the sensor will send feedback to the servo motor, and the system will control the servo motor to reverse and then reconnect, thus protecting the parts. This solves the problem that the existing machine tool shifts gears manually by using the shift fork 5. By setting the speed-changing block to a segmented structure, in conjunction with the segmented bearing 17 and the movable bracket 12, quick disassembly can be achieved when the speed-changing block is damaged, allowing for quick replacement of parts, thus solving the problem of easy damage to the speed-changing block.

[0023] Please see Figure 1 The guide device 1 includes a slide rail 4 and a support base. Two sets of support bases are provided and symmetrically arranged on the left and right sides of the slide rail 4. They are assembled and connected with the slide rail 4 to play a guiding role in conjunction with the shift fork 5.

[0024] Please see Figure 3 The rear end of the shift fork 5 is located inside the slide rail 4, and the front end of the shift fork 5 is located outside the nut 9 and is fixedly connected to the nut 9, which serves to connect and install the shift fork 5.

[0025] Please see Figure 2 The speed change module 7 includes a speed change gear 8 and a connecting rod. The speed change gear 8 is provided in two sets and is symmetrically arranged in the connecting rod, which plays the role of adjusting the speed of the main shaft.

[0026] Please see Figure 3 The inner sides of the opposing surfaces of the gear 8 are provided with mating grooves 16.

[0027] Please see Figure 4The quick-release module 6 includes a fixed bracket 11, a movable bracket 12, a guide block 13, a guide groove 10, a segmented bearing 17, and a segmented gear shifting block 18. The fixed bracket 11 is located on the lower side of the front end of the shift fork 5. The upper end of the fixed bracket 11 has a guide groove 10. The upper end of the fixed bracket 11 has a movable bracket 12. The rear end of the movable bracket 12 has a guide block 13. The movable bracket 12 is guided and connected to the guide groove 10 in the fixed bracket 11 through the guide block 13. The fixed bracket 11 and the movable bracket 12 are connected to each other. A segmented bearing 17 is provided inside the seat 12, and a segmented gear shift block 18 is provided inside the segmented bearing 17. The segmented bearing 17 and the segmented gear shift block 18 are connected. The segmented gear shift block 18 is connected to the inner side of the opposite face of the gear 8 on both the left and right sides by mating grooves 16. The shift fork 5 is driven by a servo motor to move left and right in the slide rail 4, thereby driving the segmented gear shift block 18 at the front end of the shift fork 5 to connect with the two sets of gears 8 in a single connection, thereby realizing the function of automatic gear shifting.

[0028] Please see Figure 4 The fixed card holder 11 has a pin groove 15 on the upper rear side, and a threaded groove is provided in the pin groove 15. The movable card holder 12 has a pin 14 on the upper rear side, and the lower end of the pin 14 has a thread. The pin 14 is threaded to the pin groove 15 through the thread at the lower end, which strengthens the assembly connection between the movable card holder 12 and the fixed card holder 11.

[0029] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A machine tool spindle servo speed change device, comprising a guide device (1), characterized in that: The guide device (1) is provided with a drive device (2) at the front end. The drive device (2) includes a servo motor and a sensor. The sensor is located on the upper end of the drive device (2) and is electrically connected to the servo motor. The drive device (2) is provided with a screw (3) on the right side. The rear end of the screw (3) is bolted to the output end of the servo motor. The screw (3) is provided with a nut (9) at the front end. The nut (9) is provided with a shift fork (5) on the outside. The shift fork (5) is provided with a quick-release module (6) at the front end. The quick-release module (6) is provided with a speed change module (7) at the front end.

2. The machine tool spindle servo speed change device according to claim 1, characterized in that: The guide device (1) includes a slide rail (4) and a support base. Two sets of support bases are provided and are symmetrically arranged on the left and right sides of the slide rail (4) and are assembled and connected to the slide rail (4).

3. The machine tool spindle servo speed change device according to claim 2, characterized in that: The rear end of the shift fork (5) is located inside the slide rail (4), and the front end of the shift fork (5) is located outside the nut (9) and is fixedly connected to the nut (9).

4. A machine tool spindle servo speed change device according to claim 3, characterized in that: The speed change module (7) includes a speed change gear (8) and a connecting rod. The speed change gear (8) is provided in two sets and is symmetrically arranged inside the connecting rod.

5. A machine tool spindle servo speed change device according to claim 4, characterized in that: The gears (8) are provided with mating grooves (16) on the inner sides of their opposing surfaces.

6. A machine tool spindle servo speed change device according to claim 5, characterized in that: The quick-release module (6) includes a fixed bracket (11), a movable bracket (12), a guide block (13), a guide groove (10), a segmented bearing (17), and a segmented gear shifting block (18). The fixed bracket (11) is located on the lower side of the front end of the shift fork (5). The upper end of the fixed bracket (11) is provided with a guide groove (10). The upper end of the fixed bracket (11) is provided with a movable bracket (12). The rear end of the movable bracket (12) is provided with a guide block (13). Guided connection is achieved through guide block (13) and guide groove (10) in fixed card seat (11). Segmented bearing (17) is provided in fixed card seat (11) and movable card seat (12). Segmented speed change block (18) is provided in segmented bearing (17). Segmented bearing (17) and segmented speed change block (18) are connected by bolts. The left and right sides of segmented speed change block (18) are connected to the inner side of the opposite surface of the speed change gear (8) through mating groove (16).

7. A machine tool spindle servo speed change device according to claim 6, characterized in that: The fixed card holder (11) has a pin groove (15) on the upper rear side, and a threaded groove is provided in the pin groove (15). The movable card holder (12) has a pin (14) on the upper rear side, and the pin (14) has a thread at the lower end. The pin (14) is threaded to the pin groove (15) through the thread at the lower end.

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