Gear rack type servo center frame structure

Abstract

The utility model discloses a gear rack type servo center frame structure which comprises a center frame bottom plate arranged on a rectangular guide rail, a center frame support perpendicular to the center frame bottom plate, a hydraulic center frame arranged on one side of the center frame support and a servo system arranged on the center frame bottom plate. And the hydraulic locking mechanism is arranged on the lower bottom surface of the center frame bottom plate and is connected with the rectangular guide rail. According to the utility model, the arrangement form of a plurality of hydraulic cylinders is canceled, and the control flow of the hydraulic control system is reduced. The hydraulic locking mechanism pushes the linkage rod through the hydraulic cylinder arranged in the clamping plate, the inclined face of the linkage rod enables the square iron column to be ejected out of the square hole upwards, the square iron column and the center frame bottom plate clamp the rectangular guide rail together, and therefore the gear and rack type servo center frame structure is locked on the rectangular guide rail.

Description

Technical Field

[0001] The utility model belongs to the technical field of machine tool processing equipment, and particularly relates to a rack and pinion type servo steady rest structure. Background Art

[0002] A servo steady rest is a highly automated mechanical device, which is widely used in industrial manufacturing and automated production lines, especially in occasions where high precision, high stability and large load-bearing capacity are required. In automated production lines and robot operations, a guide rail locking device can quickly and accurately lock and fix workpieces, eliminating the cumbersome operations of traditional manual fixtures and significantly improving production efficiency. Through automatic control, the guide rail locking device can quickly respond to production instructions, realize the rapid positioning and clamping of workpieces, and provide stable support for subsequent processing processes.

[0003] The locking mechanism of the existing servo steady rest generally adopts hydraulic locking. For relatively long locking mechanisms, in order to ensure the uniformity of the unilateral locking force, multiple hydraulic cylinders are used on each side, and then a hydraulic cylinder synchronization control system is used to synchronously control the multiple hydraulic cylinders. However, the hydraulic cylinder synchronization control system is a complex system, and there are other control processes for the controller of the numerical control machine tool. Too complicated control will increase the system burden and easily cause phenomena such as jamming and delay. Therefore, the technical problem to be solved by the utility model is to simplify the control process of the hydraulic locking mechanism and reduce the burden on the control system. Summary of the Utility Model

[0004] In order to overcome the problems in the background art, the utility model provides a rack and pinion type servo steady rest structure, including: a steady rest bottom plate arranged on a rectangular guide rail, a steady rest bracket vertically arranged with the steady rest bottom plate, a hydraulic steady rest arranged on one side of the steady rest bracket, a servo system arranged on the steady rest bottom plate, and a hydraulic locking mechanism arranged on the lower bottom surface of the steady rest bottom plate and connected with the rectangular guide rail; the hydraulic locking mechanism includes: two clamping plates arranged in parallel on the steady rest bottom plate, a channel penetrating the clamping plates along the central axis direction, a cylinder barrel arranged at one end of the clamping plate, a piston arranged in the cylinder barrel, a piston rod connected with the piston, and a linkage rod connected with the piston rod and sliding in the channel; a plurality of square holes communicated with the channel are arranged at the part of the clamping plate in contact with the rectangular guide rail, and square iron columns are arranged in the square holes; a notch is correspondingly arranged on the linkage rod below the square hole, the notch includes an inclined surface and a horizontal bottom, and the bottom of the square iron column is a semi-cylinder.

[0005] Preferably, a groove is arranged on the horizontal bottom, and a magnet is arranged in the groove.

[0006] Preferably, a hydraulic cylinder cover is provided at the outer end of the cylinder barrel, and a liquid inlet is provided on the hydraulic cylinder cover.

[0007] Preferably, the servo system includes: a servo motor provided on the other side of the steady rest bracket, a planetary gear reducer provided on the steady rest base plate and connected to the servo motor, the output shaft of the planetary gear reducer passes downward through the steady rest base plate, a helical gear is provided on the output shaft, and a helical rack provided on the side of the rectangular guide rail and meshing with the helical gear.

[0008] The beneficial effects of the present utility model:

[0009] Compared with the prior art, the present utility model cancels the layout form of multiple hydraulic cylinders and reduces the control process of the hydraulic control system. The hydraulic locking mechanism pushes the linkage rod through the hydraulic cylinder arranged in the clamping plate, and the inclined surface of the linkage rod makes the square iron column push upward out of the square hole, and jointly clamps the rectangular guide rail with the steady rest base plate, thereby locking the rack and pinion type servo steady rest structure on the rectangular guide rail. Description of the Drawings

[0010] Figure 1 Is the first isometric structural view of the rack and pinion type servo steady rest structure;

[0011] Figure 2 Is the second isometric structural view of the rack and pinion type servo steady rest structure;

[0012] Figure 3 Is the structural view of the hydraulic locking mechanism.

[0013] In the figure: steady rest base plate 1, steady rest bracket 2, hydraulic steady rest 3, servo system 4, rectangular guide rail 5, hydraulic locking mechanism 6, clamping plate 7, channel 8, cylinder barrel 9, piston 10, piston rod 11, linkage rod 12, square hole 13, square iron column 14, magnet 15, hydraulic cylinder cover 16, liquid inlet 17, servo motor 18, planetary gear reducer 19, helical gear 20, helical rack 21. Specific Embodiments

[0014] In order to make the purpose, technical solution and beneficial effects of the present utility model clearer, the preferred embodiments of the present utility model will be described in detail below to facilitate understanding by those skilled in the art.

[0015] Please refer to Figures 1 to 3, the present utility model provides a rack and pinion type servo steady rest structure, comprising: a steady rest base plate 1 provided on a rectangular guide rail 5, a steady rest bracket 2 vertically arranged with respect to the steady rest base plate 1, a hydraulic steady rest 3 provided on one side of the steady rest bracket 2, a servo system 4 provided on the steady rest base plate 1, and a hydraulic locking mechanism 6 provided on the lower bottom surface of the steady rest base plate 1 and connected to the rectangular guide rail 5; the hydraulic locking mechanism 6 includes: two clamping plates 7 arranged in parallel on the steady rest base plate 1, a channel 8 penetrating the clamping plates 7 along the central axis direction, a cylinder barrel 9 provided at one end of the clamping plate 7, a piston 10 provided in the cylinder barrel 9, a piston rod 11 connected to the piston 10, and a linkage rod 12 connected to the piston rod 11 and slidably arranged in the channel 8; a plurality of square holes 13 communicating with the channel 8 are provided at the part of the clamping plate 7 in contact with the rectangular guide rail 5, and square iron columns 14 are provided in the square holes 13; a notch is correspondingly provided on the linkage rod 12 below the square hole 13, the notch includes an inclined surface and a horizontal bottom, and the bottom of the square iron column 14 is a semi-cylinder. The rectangular guide rail 5 is respectively located between the clamping plates 7 and the steady rest base plate 1 on both sides. Under the action of oil pressure, the piston 10 pushes the piston rod 11, the piston rod 11 pushes the linkage rod 12, and the bottom of the square iron column 14 moves from the horizontal bottom to the inclined surface, so that the square iron column 14 protrudes from the square hole 13, and the square iron column 14 and the steady rest base plate 1 jointly clamp the rectangular guide rail 5.

[0016] A groove is provided on the horizontal bottom, and a magnet 15 is provided in the groove. The function of the magnet 15 is that when the locking mechanism needs to release the rectangular guide rail 5, the oil pressure in the cylinder barrel 9 is reduced, the piston rod 11 pulls the linkage rod 12, the bottom of the square iron column 14 moves to the horizontal bottom, and the function of the magnet 15 is to quickly reset the square iron column 14 to the horizontal bottom.

[0017] A hydraulic cylinder cover 16 is provided at the outer end of the cylinder barrel 9, and a liquid inlet 17 is provided on the hydraulic cylinder cover 16. The liquid inlet 17 is connected to a hydraulic pump.

[0018] The servo system 4 includes: a servo motor 18 provided on the other side of the steady rest bracket 2, a planetary gear reducer 19 provided on the steady rest base plate 1 and connected to the servo motor 18, the output shaft of the planetary gear reducer 19 passes downward through the steady rest base plate 1, a helical gear 20 is provided on the output shaft, and a helical rack 21 provided on the side of the rectangular guide rail 5 and meshing with the helical gear 20. The servo motor 18 drives the planetary gear reducer 19, the planetary gear reducer 19 drives the helical gear 20, and the cooperation between the helical gear 20 and the helical rack 21 drives the rack and pinion type servo steady rest structure to move along the rectangular guide rail 5.

[0019] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solutions of the present invention rather than to limit them. Although the present invention has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made in terms of form and details without departing from the scope defined by the claims of the present invention.

Claims

1. A rack and pinion type servo steady rest structure, characterized in that Including: A center rest base plate (1) provided on a rectangular guide rail (5), a center rest bracket (2) vertically arranged with respect to the center rest base plate (1), a hydraulic center rest (3) provided on one side of the center rest bracket (2), a servo system (4) provided on the center rest base plate (1), and a hydraulic locking mechanism (6) provided on the lower bottom surface of the center rest base plate (1) and connected to the rectangular guide rail (5); the hydraulic locking mechanism (6) includes: two parallel clamping plates (7) provided on the center rest base plate (1), a channel (8) penetrating through the clamping plates (7) along the central axis direction, a cylinder barrel (9) provided at one end of the clamping plates (7), a piston (10) provided in the cylinder barrel (9), a piston rod (11) connected to the piston (10), and a linkage rod (12) connected to the piston rod (11) and slidably arranged in the channel (8); a plurality of square holes (13) communicating with the channel (8) are provided at the part of the clamping plates (7) in contact with the rectangular guide rail (5), and square iron columns (14) are provided in the square holes (13); a notch is correspondingly provided on the linkage rod (12) below the square hole (13), the notch includes an inclined surface and a horizontal bottom, and the bottom of the square iron column (14) is a semi-cylinder.

2. The structure of a gear-rack type servo steady rest according to claim 1, wherein A groove is provided on the horizontal bottom, and a magnet (15) is provided in the groove.

3. The rack and pinion type servo steady rest structure according to claim 2, wherein, A hydraulic cylinder cover (16) is provided at the outer end of the cylinder barrel (9), and a liquid inlet (17) is provided on the hydraulic cylinder cover (16).

4. A rack and pinion type servo steady rest structure according to claim 1, characterized in that, The servo system (4) includes: a servo motor (18) provided on the other side of the center rest bracket (2), a planetary gear reducer (19) provided on the center rest base plate (1) and connected to the servo motor (18), the output shaft of the planetary gear reducer (19) passes downward through the center rest base plate (1), a helical gear (20) is provided on the output shaft, and a helical rack (21) provided on the side surface of the rectangular guide rail (5) and meshing with the helical gear (20).

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