Fine adjustment device for tool clamp of numerical control lathe

Abstract

The fine adjustment device comprises a fixing frame, a transverse sliding rail and a longitudinal sliding rail are connected into the fixing frame in a sliding mode, lead screw mechanisms are fixedly connected to the two sides of the lower surface of the transverse sliding rail and the two sides of the upper surface of the longitudinal sliding rail, and speed reducers are arranged at the input ends of the lead screw mechanisms; a hole is formed in the bottom of the box body, a rotating motor is fixedly connected into the hole, a four-jaw chuck is fixedly connected to the output end of the rotating motor, a supporting plate is fixedly connected to the upper surface of the box body, the upper surface of the supporting plate is fixedly connected with the lower surface of the fixing frame, and a sound insulation plate is fixedly connected to the inner side wall of the box body; and the sliding block is in sliding connection with the interiors of the transverse sliding rail and the longitudinal sliding rail, a feeding lead screw mechanism is arranged in the sliding block, and a cutter is arranged at the output end of the feeding lead screw mechanism. By means of the components, the speed reducer is used for increasing the tool position adjusting precision, the back clearance is reduced through the lead screw mechanism, the working efficiency and quality of the lathe are improved, noise can be reduced, and the good working environment is improved.

Description

Technical Field

[0001] The utility model relates to the field of CNC machine tool components, and particularly relates to a fine adjustment device for a tool fixture of a CNC lathe. Background Art

[0002] In order to increase the precision, the existing machine tool fine adjustment device uses a fine adjustment screw to finely adjust the position of the tool or fixture. However, its thread structure determines that the distance adjusted by each rotation is relatively small, so the adjustment speed is relatively slow and it is not suitable for occasions that require rapid adjustment. For example, an adjustable tool rest for an ultra-precision machine tool disclosed in a Chinese patent, with the application number: CN201720328956.3, uses a fine adjustment screw to finely adjust the tool, but due to the structural characteristics of the screw, the tool cannot be adjusted rapidly. Summary of the Utility Model

[0003] The purpose of the utility model is to solve at least one of the technical problems existing in the prior art, and provide a fine adjustment device for a tool fixture of a CNC lathe. The use of a reducer increases the precision of tool position adjustment, reduces backlash through a lead screw mechanism, improves the working efficiency and quality of the lathe, can also reduce noise, and provides a good working environment.

[0004] The present utility model also provides a fine-tuning device for a tool fixture of a numerically controlled lathe having the above-mentioned one, including: a fixed frame, wherein a transverse slide rail and a longitudinal slide rail are slidably connected inside the fixed frame, the longitudinal slide rail is located below the transverse slide rail, a lead screw mechanism is fixedly connected to the lower surface of the transverse slide rail, the lead screw mechanism includes a guide rail, a lead screw, a nut and a push rod, the outer surface of the nut is slidably connected to the inner side wall of the guide rail, the lead screw is arranged inside the nut, the outer surface of the lead screw is rotatably connected to the guide rail, one end of the nut is fixedly connected to the push rod, a speed reducer is arranged at one end of the lead screw penetrating through the guide rail, the speed reducer includes a box body, a support frame, an input shaft, a transmission shaft, an output shaft, a first small gear, a second small gear, a first large gear and a second large gear, the input shaft is rotatably connected to the box body and the support frame, the outer surface of the input shaft is fixedly connected to the inside of the first small gear, the side surface of the first small gear is meshed with the first large gear, the inside of the first large gear is fixedly connected to the transmission shaft, the transmission shaft is rotatably connected to the box body, the surface of the transmission shaft is fixedly connected to the inside of the second small gear, the side surface of the second small gear is meshed with the second large gear, the inside of the second large gear is fixedly connected to the output shaft, the outer surface of the output shaft is rotatably connected to the box body and the support frame, one end of the output shaft away from the support frame is fixedly connected to the lead screw, and a rotating handle is fixedly connected to one end of the input shaft away from the support frame; a box body, wherein a hole is opened at the bottom of the box body, a rotating motor is fixedly connected inside the hole, an output end of the rotating motor is fixedly connected to a four-jaw chuck, the lower surface of the four-jaw chuck is rotatably connected to the bottom of the box body, a support plate is fixedly connected to the upper surface of the box body, and a sound insulation plate is fixedly connected to the inner side wall of the box body; a slider, the side surface of the slider is slidably connected to the inside of the transverse slide rail and the longitudinal slide rail, there are five lead screw mechanisms and they are located on both sides of the lower surface of the transverse slide rail, on both sides of the upper surface of the longitudinal slide rail and inside the slider, the output ends of the lead screw mechanisms on the lower surface of the transverse slide rail and the upper surface of the longitudinal slide rail are fixedly connected to a push plate, the push plate is in contact with the slider, and a tool is arranged at the output end of the lead screw mechanism inside the slider. Through the above components, the use of the speed reducer increases the accuracy of tool position adjustment, reduces the backlash through the lead screw mechanism, improves the working efficiency and quality of the lathe, can also reduce noise, and provides a good working environment.

[0005] According to a fine-tuning device for a tool fixture of a numerically controlled lathe described in the present utility model, a chute is opened on the side surface of the fixed frame, and the output shafts on both sides of the transverse slide rail and the longitudinal slide rail are located inside the chute. Through the above components, the speed reducer can follow the transverse slide rail and the longitudinal slide rail to move, constantly increasing the accuracy of tool movement.

[0006] According to a fine-tuning device for a tool fixture of a numerically controlled lathe described in the present utility model, the lower surface of the box body is slidably connected to the upper surface of the support plate, enabling the speed reducer to slide on the support plate.

[0007] A fine-tuning device for a tool fixture of a numerically controlled lathe according to the present utility model, a feed groove is provided at the top of the box body, and the lead screw mechanism inside the slider is located inside the feed groove. Through the above components, a moving space is provided for the lead screw mechanism inside the slider to drive the tool to move.

[0008] A fine-tuning device for a tool fixture of a numerically controlled lathe according to the present utility model, a groove is provided on the front of the box body, and a box door is provided on the front of the box body. Through the above components, the feeding and discharging can be made more convenient, and the working environment can also be enclosed.

[0009] A fine-tuning device for a tool fixture of a numerically controlled lathe according to the present utility model, the box door is slidably connected to the groove, and there are two box doors located on both sides of the front of the box body. Through the above components, the movement of the box door is made more convenient.

[0010] A fine-tuning device for a tool fixture of a numerically controlled lathe according to the present utility model, a glass window is provided inside the box door, and a handle is fixedly connected to the front of the box door. Through the above components, the machining process can be monitored even in the working environment, and it is convenient for the box door to move.

[0011] A fine-tuning device for a tool fixture of a numerically controlled lathe according to the present utility model, a rubber plate is provided on the lower surface of the slider to reduce the vibration of the tool.

[0012] Beneficial effects:

[0013] Compared with the prior art, the present utility model uses both a reducer and a lead screw mechanism, which increases the machining accuracy of the lathe. It also uses a sound insulation board and a rubber plate for noise reduction and vibration prevention, and closing the box door during work can also prevent iron filings from flying. Description of the drawings

[0014] The present utility model will be further described below with reference to the drawings and embodiments;

[0015] Figure 1 It is a schematic diagram of the overall structure of the fine-tuning device for the tool fixture of the numerically controlled lathe of the present utility model;

[0016] Figure 2 It is a schematic top view structure diagram of the fine-tuning device for the tool fixture of the numerically controlled lathe of the present utility model;

[0017] Figure 3 It is a schematic front sectional structure diagram of the fine-tuning device for the tool fixture of the numerically controlled lathe of the present utility model;

[0018] Figure 4 It is for the fine-tuning device for the tool fixture of the numerically controlled lathe of the present utility model Figure 1 Schematic diagram of the structure at A;

[0019] Figure 5For the fine-tuning device of the tool fixture of the numerical control lathe of the present utility model Figure 3 Schematic structural diagram of part B in

[0020] Legend description:

[0021] 1. Fixed frame; 2. Horizontal slide rail; 3. Vertical slide rail; 4. Lead screw mechanism; 5. Reducer; 6. Rotating handle; 7. Box body; 8. Hole; 9. Rotating motor; 10. Four-jaw chuck; 11. Support plate; 12. Sound insulation board; 13. Slide block; 14. Tool; 15. Chute; 16. Feed groove; 17. Groove; 18. Box door; 19. Glass window; 20. Rubber plate; 21. Push plate;

[0022] 401. Guide rail; 402. Lead screw; 403. Nut; 404. Push rod; 501. Box body; 502. Support frame; 503. Input shaft; 504. Transmission shaft; 505. Output shaft; 506. First small gear; 507. Second small gear; 508. First large gear; 509. Second large gear. Specific implementation manners

[0023] This part will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the drawings. The function of the drawings is to supplement the description of the text part of the specification, enabling people to intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but it cannot be construed as a limitation on the protection scope of the present utility model.

[0024] Refer to Figures 1-5, an embodiment of the utility model is a fine-tuning device for a tool fixture of a numerically controlled lathe, including: a fixed frame 1 for defining the moving range of a transverse slide rail 2 and a longitudinal slide rail 3. The transverse slide rail 2 and the longitudinal slide rail 3 are slidably connected inside the fixed frame 1 to drive the slider 13 to move horizontally and vertically. The longitudinal slide rail 3 is located below the transverse slide rail 2 so that the two do not interfere with each other's movement. A lead screw mechanism 4 is fixedly connected to the lower surface of the transverse slide rail 2, which can push the push plate 21 to achieve the feeding of the tool 14 and reduce the backlash of the device. The lead screw mechanism 4 includes a guide rail 401, a lead screw 402, a nut 403, and a push rod 404. The outer surface of the nut 403 is slidably connected to the inner side wall of the guide rail 401 so that the nut 403 can move linearly. The lead screw 402 is arranged inside the nut 403 to achieve the conversion of rotational motion to linear motion. The outer surface of the lead screw 402 is rotatably connected to the guide rail 401 so that the lead screw 402 can rotate normally. One end of the nut 403 is fixedly connected to the push rod 404 to push the push rod 404 to move linearly. One end of the lead screw 402 penetrates through the guide rail 401 and is provided with a speed reducer 5 to increase the accuracy of the movement of the tool 14. The speed reducer 5 includes a box body 501, a support frame 502, an input shaft 503, a transmission shaft 504, an output shaft 505, a first small gear 506, a second small gear 507, a first large gear 508, and a second large gear 509. The input shaft 503 is rotatably connected to the box body 501 and the support frame 502 so that the input shaft 503 has a support point and can rotate normally. The outer surface of the input shaft 503 is fixedly connected to the inside of the first small gear 506 so that the input shaft 503 can drive the first small gear 506 to rotate. The side surface of the first small gear 506 is meshed with the first large gear 508 so that the first small gear 506 can drive the first large gear 508 to rotate and reduce its rotational speed. The inside of the first large gear 508 is fixedly connected to the transmission shaft 504 so that the first large gear 508 can drive the transmission shaft 504 to rotate. The transmission shaft 504 is rotatably connected to the box body 501 so that the transmission shaft 504 can rotate normally. The surface of the transmission shaft 504 is fixedly connected to the inside of the second small gear 507 so that the transmission shaft 504 can drive the second small gear 507 to rotate. The side surface of the second small gear 507 is meshed with the second large gear 509 to transmit power. The inside of the second large gear 509 is fixedly connected to the output shaft 505 to drive the output shaft 505 to rotate. The surface of the output shaft 505 is rotatably connected to the box body 501 and the support frame 502 so that the output shaft 505 can rotate normally. One end of the output shaft 505 away from the support frame 502 is fixedly connected to the lead screw 402 to provide power for the rotation of the lead screw 402. One end of the input shaft 503 away from the support frame 502 is fixedly connected to a rotating handle 6 to convert human power into the rotational power of the input shaft 503. A chute 15 is opened on the side of the fixed frame 1 to provide space for the movement of the output shaft 505. The output shafts 505 on both sides of the transverse slide rail 2 and the longitudinal slide rail 3 are located inside the chute 15 to facilitate the movement of the speed reducer 5;

[0025] The box body 7 provides support for the rotating motor 9, the four-jaw chuck 10 and the support plate 11. A hole 8 is opened at the bottom of the box body 7 for installing the rotating motor 9. The rotating motor 9 is fixedly connected inside the hole 8 to provide power for the rotation of the four-jaw chuck 10. The output end of the rotating motor 9 is fixedly connected with the four-jaw chuck 10 for clamping the workpiece. The lower surface of the four-jaw chuck 10 is rotatably connected to the bottom of the box body 7 to enable the four-jaw chuck 10 to rotate normally. The upper surface of the box body 7 is fixedly connected with the support plate 11 to provide support for the fixed frame 1 and the reducer 5. The lower surface of the box body 501 of the reducer 5 is slidably connected to the upper surface of the support plate 11 to enable the reducer 5 to move. The inner side wall of the box body 7 is fixedly connected with a sound insulation board 12 to reduce noise. A feed groove 16 is opened at the top end of the box body 7 to provide space for the lead screw mechanism 4 inside the slider 13 to move. A groove 17 is opened on the front surface of the box body 7 to define the moving range of the box door 18. A box door 18 is arranged on the front surface of the box body 7 for convenient feeding and discharging. The box door 18 is slidably connected with the groove 17 to enable the box door 18 to move. There are two box doors 18 located on both sides of the front surface of the box body 7. A glass window 19 is arranged inside the box door 18 for convenient monitoring of the workpiece. A handle is fixedly connected to the front surface of the box door 18 for facilitating the movement of the box door 18;

[0026] The slider 13 drives the lead screw mechanism 4 inside the slider 13 to move. The side surface of the slider 13 is slidably connected inside the horizontal slide rail 2 and the vertical slide rail 3 to enable the slider 13 to slide normally. There are five lead screw mechanisms 4 located on both sides of the lower surface of the horizontal slide rail 2, both sides of the upper surface of the vertical slide rail 3 and inside the slider 13 to enable the cutter 14 to move horizontally, vertically and vertically. The output ends of the lead screw mechanisms 4 on the lower surface of the horizontal slide rail 2 and the upper surface of the vertical slide rail 3 are fixedly connected with a push plate 21 for pushing the slider 13 to move. The push plate 21 is in contact with the slider 13 for facilitating the pushing of the slider 13. The output end of the lead screw mechanism 4 inside the slider 13 is provided with a cutter 14 for driving the cutter 14 to move vertically for processing the workpiece. The lead screw mechanism 4 inside the slider 13 is located inside the feed groove 16 to provide moving space for the lead screw mechanism 4 inside the slider 13. A rubber plate 20 is arranged on the lower surface of the slider 13 for shock absorption.

[0027] Working principle: During use, slide the box door 18 to both sides, place the workpiece on the four-jaw chuck 10 and clamp it. Start the rotation motor 9 to drive the four-jaw chuck 10 and the workpiece to rotate. Rotate the rotation handles 6 on both sides of the transverse slide rail 2 and the longitudinal slide rail 3 to make the input shaft 503, the first pinion 506, the first large gear 508, the second pinion 507, the second large gear 509 and the output shaft 505 of the reducer 5 rotate. The output shaft 505 drives the lead screw 402 to rotate. The rotation of the lead screw 402 makes the nut 403 and the push rod 404 move linearly. The push rod 404 pushes the push plate 21, and the push plate 21 pushes the slider 13 to move. The movement of the slider 13 drives the lead screw mechanism 4 and the tool 14 in the slider 13 to move, so as to achieve the fine adjustment operation of the tool 14. Move the tool 14 to the specified position. Start the rotation handle 6 above the slider 13 to drive the reducer 4 and the lead screw mechanism 5 in the slider 13 to work, so that the tool 14 feeds.

[0028] The above has described the embodiments of the present invention in detail with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the knowledge scope of those of ordinary skill in the art to which the present invention pertains, various changes can be made without departing from the gist of the present invention.

Claims

1. A fine adjustment device for a tool fixture of a numerically controlled lathe, characterized in that, Including: A fixed frame (1), inside which a transverse slide rail (2) and a longitudinal slide rail (3) are slidably connected. The longitudinal slide rail (3) is located below the transverse slide rail (2). A lead screw mechanism (4) is fixedly connected to the lower surface of the transverse slide rail (2). The lead screw mechanism (4) includes a guide rail (401), a lead screw (402), a nut (403), and a push rod (404). The outer surface of the nut (403) is slidably connected to the inner side wall of the guide rail (401). The lead screw (402) is arranged inside the nut (403). The outer surface of the lead screw (402) is rotatably connected to the guide rail (401). One end of the nut (403) is fixedly connected to the push rod (404). One end of the lead screw (402) penetrates through the guide rail (401) and is provided with a speed reducer (5). The speed reducer (5) includes a box body (501), a support frame (502), an input shaft (503), a transmission shaft (504), an output shaft (505), a first small gear (506), a second small gear (507), a first large gear (508), and a second large gear (509). The input shaft (503) is rotatably connected to the box body (501) and the support frame (502). The outer surface of the input shaft (503) is fixedly connected to the inside of the first small gear (506). The side surface of the first small gear (506) is meshed with the first large gear (508). The inside of the first large gear (508) is fixedly connected to the transmission shaft (504). The transmission shaft (504) is rotatably connected to the box body (501). The surface of the transmission shaft (504) is fixedly connected to the inside of the second small gear (507). The side surface of the second small gear (507) is meshed with the second large gear (509). The inside of the second large gear (509) is fixedly connected to the output shaft (505). The outer surface of the output shaft (505) is rotatably connected to the box body (501) and the support frame (502). One end of the output shaft (505) away from the support frame (502) is fixedly connected to the lead screw (402). One end of the input shaft (503) away from the support frame (502) is fixedly connected to a rotary handle (6); A box body (7), at the bottom of which a hole (8) is opened. A rotating motor (9) is fixedly connected inside the hole (8). The output end of the rotating motor (9) is fixedly connected to a four-jaw chuck (10). The lower surface of the four-jaw chuck (10) is rotatably connected to the bottom of the box body (7). The upper surface of the box body (7) is fixedly connected to a support plate (11). A sound insulation board (12) is fixedly connected to the inner side wall of the box body (7); A slider (13), the side surface of the slider (13) is slidably connected to the inside of a transverse slide rail (2) and a longitudinal slide rail (3). There are five lead screw mechanisms (4), which are located on both sides of the lower surface of the transverse slide rail (2), both sides of the upper surface of the longitudinal slide rail (3), and inside the slider (13). The output ends of the lead screw mechanisms (4) on the lower surface of the transverse slide rail (2) and the upper surface of the longitudinal slide rail (3) are fixedly connected to a push plate (21), and the push plate (21) is in contact with the slider (13). The output end of the lead screw mechanism (4) inside the slider (13) is provided with a cutter (14).

2. The fine adjustment device for the tool fixture of a numerically controlled lathe according to claim 1, characterized in that, A chute (15) is formed on the side surface of the fixed frame (1), and the output shafts (505) on both sides of the transverse slide rail (2) and the longitudinal slide rail (3) are located inside the chute (15).

3. A fine-tuning device for a tool fixture of a numerically controlled lathe according to claim 1, characterized in that, The lower surface of the box body (501) is slidably connected to the upper surface of the support plate (11).

4. A fine adjustment device for a tool fixture of a numerically controlled lathe according to claim 1, characterized in that, A feed groove (16) is formed at the top end of the box body (7), and the lead screw mechanism (4) inside the slider (13) is located inside the feed groove (16).

5. A fine-tuning device for a CNC lathe tool fixture according to claim 1, characterized in that, A groove (17) is formed on the front surface of the box body (7), and a box door (18) is arranged on the front surface of the box body (7).

6. The fine-tuning device for a CNC lathe tool fixture according to claim 5, characterized in that The box door (18) is slidably connected to the groove (17), and there are two box doors (18) located on both sides of the front surface of the box body (7).

7. A fine-tuning device for a tool fixture of a numerically controlled lathe according to claim 5, characterized in that, A glass window (19) is arranged inside the box door (18), and a handle is fixedly connected to the front surface of the box door (18).

8. A fine adjustment device for a tool fixture of a CNC lathe according to claim 1, characterized in that, A rubber plate (20) is arranged on the lower surface of the slider (13).

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