CN219403430U

CN219403430U - Trolley driving mechanism

Info

Publication number: CN219403430U
Application number: CN202320378161.9U
Authority: CN
Inventors: 翟丽晴; 徐安东; 魏振南; 闫克英
Original assignee: Wuxi Gaoge Robot Technology Co ltd
Current assignee: Wuxi Gaoge Robot Technology Co ltd
Priority date: 2023-03-03
Filing date: 2023-03-03
Publication date: 2023-07-25
Anticipated expiration: 2033-03-03

Abstract

The utility model discloses a trolley driving mechanism, which relates to the field of machine tools and comprises a base, wherein a sliding plate is attached to the upper surface of the base, mounting seats are fixed at two ends of one side of the sliding plate, an adjusting plate is arranged on the upper surface of the mounting seats, a first planetary reducer is fixed on the upper surface of the adjusting plate, an X-axis servo motor is fixed on the top of the first planetary reducer, a transmission gear is connected to the bottom end of the first planetary reducer, a rack is fixed on the inner side of the top of the base, and the transmission gear is meshed with the rack. The novel adjusting plate is arranged on the mounting seat and drives to move through the adjusting screw rod, so that the backlash of the gear and the rack can be adjusted, the meshing precision of the gear and the rack is improved, meanwhile, the gear and the rack are meshed by adopting helical teeth, the noise during driving is reduced, and the bearing capacity is improved.

Description

Trolley driving mechanism

Technical Field

The utility model relates to the field of machine tools, in particular to a trolley driving mechanism.

Background

The numerical control machine tool can logically process a program defined by a control code or other symbol instructions, decode the program, input the program into the numerical control device through an information carrier, send various control signals through the numerical control device through operation processing, control the action of the machine tool, and automatically machine parts according to the shape and the size required by drawings.

The numerical control machine tool main body generally comprises a machine body, a base, a stand column, a cross beam, a sliding seat, a workbench, a spindle box, a feeding mechanism, a tool rest, an automatic tool changing device and other mechanical parts. The existing machine tool feeding trolley is generally driven by driving the gear and the rack through the motor, but the meshing gap between the gear and the rack of the existing motor is not adjustable, the situation of sliding teeth is easy to occur, the existing gear and rack are straight teeth, noise is large, bearing capacity is poor, an existing driving mechanism is directly used for driving the gear to rotate through a servo motor, a reducing mechanism is not arranged, displacement precision is low, meanwhile, the existing vertical driving mode is also used for driving the gear to rotate through the motor, bearing capacity of the vertical driving mode is too small, and conveying of heavy workpieces cannot be completed. Therefore, it is necessary to invent a cart driving mechanism to solve the above-mentioned problems.

Disclosure of Invention

The present utility model is directed to a cart driving mechanism, which solves the above-mentioned problems in the prior art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a dolly actuating mechanism, includes the base, the upper surface laminating of base has the slide, one side both ends of slide all are fixed with the mount pad, the upper surface of mount pad is provided with the regulating plate, the upper surface mounting of regulating plate has first planetary reducer, the top of first planetary reducer is fixed with X axle servo motor, the bottom of first planetary reducer is connected with drive gear, the top inboard of base is fixed with the rack, drive gear links to each other with the rack meshing, the upper surface one end of mount pad is fixed with the lead screw fixing base, the middle part of lead screw fixing base is connected with accommodate the lead screw through the bearing penetration, in the helicoid of regulating plate one end seting up is inserted to accommodate the lead screw.

Preferably, the two ends of the upper surface of the sliding plate are both fixed with gantry frames, and a vertical driving component is arranged between the upper ends of the two gantry frames.

Preferably, the vertical driving assembly comprises a fixed base, two ends of the fixed base are fixedly connected with the gantry frame, a second planetary reducer is fixed at the top end of the fixed base, and a Z-axis servo motor is fixed at the top end of the second planetary reducer.

Preferably, the bottom end of the second planetary reducer is connected with an axle coupler, the axle coupler is arranged in the inner cavity of the fixed base, and a screw rod is fixed at the bottom end of the axle coupler.

Preferably, an angular contact ball bearing is fixed in the lower end of the fixed base, and the upper end of the screw rod is connected with the angular contact ball bearing in a penetrating manner.

Preferably, a supporting seat is fixed in the middle of the upper surface of the base, a deep groove ball bearing is fixed in the middle of the top end of the supporting seat, and the bottom end of the screw rod is inserted into the deep groove ball bearing.

The utility model has the technical effects and advantages that:

according to the utility model, the adjusting plate is arranged on the mounting seat and driven to move by the adjusting screw rod, so that the gear side gap between the gear and the rack can be adjusted, the meshing precision of the gear and the rack is improved, meanwhile, the gear and the rack are meshed by adopting the helical teeth, the noise during driving is reduced, the bearing capacity is improved, the output ends of the two servo motors are respectively provided with the speed reducer, the positioning precision is improved, the vertical driving adopts screw rod transmission, and compared with the open gear pair, the transmission efficiency is higher, the bearing capacity is stronger, the band-type brake is arranged on the servo motor, the equipment can be stopped immediately when the system is powered off, and the safety is improved.

Drawings

Fig. 1 is a perspective view of the whole structure of the present utility model.

Fig. 2 is a schematic cross-sectional view of the adjusting plate structure of the present utility model.

FIG. 3 is a schematic cross-sectional view of the overall structure of the present utility model.

Fig. 4 is a schematic cross-sectional view of a vertical drive assembly according to the present utility model.

In the figure: 1. a base; 2. a slide plate; 3. a mounting base; 4. an adjusting plate; 5. a first planetary reducer; 6. an X-axis servo motor; 7. a transmission gear; 8. a rack; 9. a screw rod fixing seat; 10. adjusting a screw rod; 11. a gantry frame; 12. a vertical drive assembly; 13. a fixed base; 14. a second planetary reducer; 15. a Z-axis servo motor; 16. a shaft coupler; 17. a screw rod; 18. angular contact ball bearings; 19. deep groove ball bearings; 20. and a supporting seat.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The utility model provides a trolley driving mechanism as shown in figures 1-4, which comprises a base 1, wherein a sliding plate 2 is attached to the upper surface of the base 1, the sliding plate 2 can slide on the base 1, a mounting seat 3 is fixed, an adjusting plate 4 is arranged on the upper surface of the mounting seat 3, the adjusting plate 4 can slide in a groove on the mounting seat 3, a first planetary reducer 5 is fixed on the upper surface of the adjusting plate 4, the horizontal displacement precision is improved by the arrangement of the first planetary reducer 5, an X-axis servo motor 6 is fixed on the top of the first planetary reducer 5, a band brake is arranged in the X-axis servo motor 6, equipment can be stopped immediately when a system is powered off, the safety is improved, the bottom end of the first planetary reducer 5 is connected with a transmission gear 7, a rack 8 is fixed on the inner side of the top of the base 1, the transmission gear 7 is meshed with the rack 8, the transmission gear 7 and the rack 8 are all provided with helical teeth, one end of the upper surface of the mounting seat 3 is fixedly provided with a lead screw fixing seat 9, the middle part of the lead screw fixing seat 9 is connected with an adjusting lead screw 10 through a bearing, one end of the lead screw 10 is inserted into a groove formed in one end of the adjusting plate 4, one end of the adjusting screw 10 is provided with a band-type brake, the two end of the adjusting screw 10 is meshed with the two end faces of the rack 8, and the two end faces of the adjusting screw 10 are meshed with the rack 8, and the two end faces of the rack 11 are meshed with the adjusting gear 11 are meshed with the rack, and the two end faces of the rack 11 are meshed with the rack 2, and the end is meshed with the rack 2.

Specifically, vertical drive assembly 12 includes fixed base 13, fixed base 13's both ends all with gantry frame 11 fixed connection, fixed base 13's top is fixed with second planetary reducer 14, the setting of second planetary reducer 14 has improved vertical displacement precision, the top of second planetary reducer 14 is fixed with Z axle servo motor 15, be provided with the band-type brake in the Z axle servo motor 15, can stop equipment work immediately when the system outage, the security has been improved, second planetary reducer 14's bottom is connected with shaft coupler 16, shaft coupler 16 sets up in fixed base 13's inner chamber, shaft coupler 16's bottom mounting has lead screw 17, Z axle servo motor 15 passes through second planetary reducer 14 and shaft coupler 16 and drives lead screw 17 and rotate, the setting of lead screw 17 is higher than open gear pair transmission efficiency, fixed base 13's lower extreme inside is fixed with angular contact ball bearing 18, lead screw 17's upper end and angular contact ball bearing 18 run through and link to each other, the upper surface middle part of base is fixed with supporting seat 20, the top middle part of supporting seat 20 is fixed with deep groove ball bearing 19, the bottom of lead screw 17 inserts inside the deep groove ball bearing 19.

The working principle of the utility model is as follows:

the device is provided with the regulating plate 4 on the mounting seat 3, the regulating plate 4 drives to move through the regulating screw 10, the gear side gap between the transmission gear 7 and the rack 8 can be regulated, the meshing precision of the transmission gear and the rack 8 is improved, meanwhile, the transmission gear 7 and the rack 8 are meshed by adopting helical teeth, the noise during driving is reduced, the bearing capacity is improved, the output ends of the X-axis servo motor 6 and the Z-axis servo motor 15 are respectively provided with the first planetary reducer 5 and the second planetary reducer 14, the positioning precision is improved, the vertical driving adopts screw 1 for transmission, the transmission efficiency is higher compared with that of an open gear pair, the bearing capacity is stronger, the equipment operation can be stopped immediately when the system is powered off, and the safety is improved.

Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present utility model, and although the present utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present utility model.

Claims

1. The utility model provides a dolly actuating mechanism, includes base (1), its characterized in that: the upper surface of the base (1) is attached with a sliding plate (2), mounting seats (3) are respectively fixed at two ends of one side of the sliding plate (2), an adjusting plate (4) is arranged on the upper surface of the mounting seats (3), a first planetary reducer (5) is fixed on the upper surface of the adjusting plate (4), an X-axis servo motor (6) is fixed at the top of the first planetary reducer (5), a transmission gear (7) is connected at the bottom end of the first planetary reducer (5), the novel screw rod adjusting device is characterized in that a rack (8) is fixed on the inner side of the top of the base (1), the transmission gear (7) is meshed with the rack (8), a screw rod fixing seat (9) is fixed on one end of the upper surface of the mounting seat (3), an adjusting screw rod (10) is connected to the middle of the screw rod fixing seat (9) in a penetrating mode through a bearing, and one end of the adjusting screw rod (10) is inserted into a screw groove formed in one end of the adjusting plate (4).

2. A trolley driving mechanism according to claim 1, wherein: the two ends of the upper surface of the sliding plate (2) are respectively fixed with a gantry frame (11), and a vertical driving assembly (12) is arranged between the upper ends of the two gantry frames (11).

3. A trolley driving mechanism according to claim 2, characterized in that: the vertical driving assembly (12) comprises a fixed base (13), two ends of the fixed base (13) are fixedly connected with the gantry frame (11), a second planetary reducer (14) is fixed at the top end of the fixed base (13), and a Z-axis servo motor (15) is fixed at the top end of the second planetary reducer (14).

4. A trolley driving mechanism according to claim 3, wherein: the bottom end of the second planetary reducer (14) is connected with an axle coupler (16), the axle coupler (16) is arranged in the inner cavity of the fixed base (13), and a screw rod (17) is fixed at the bottom end of the axle coupler (16).

5. A trolley driving mechanism according to claim 4, wherein: an angular contact ball bearing (18) is fixed in the lower end of the fixed base (13), and the upper end of the screw rod (1) is connected with the angular contact ball bearing (18) in a penetrating mode.

6. A trolley driving mechanism according to claim 5, wherein: the novel screw rod is characterized in that a supporting seat (20) is fixed in the middle of the upper surface of the base, a deep groove ball bearing (19) is fixed in the middle of the top end of the supporting seat (20), and the bottom end of the screw rod (1) is inserted into the deep groove ball bearing (19).