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CN-121989167-A - Hydraulic driving ball screw pair feeding device of surface grinder

CN121989167ACN 121989167 ACN121989167 ACN 121989167ACN-121989167-A

Abstract

The invention discloses a surface grinder hydraulic drive ball screw pair feeding device which comprises a grinding head body arranged on a dragging plate in a sliding mode, wherein manual and automatic feeding mechanisms are respectively arranged at the front end and the rear end of the dragging plate, each manual feeding mechanism comprises a hand wheel, a push-pull rod and a bearing assembly, the push-pull rod is arranged in an inner bearing sleeve of the bearing assembly, a key and a key groove are in sliding fit between the push-pull rod and the inner bearing sleeve, the hand wheel is arranged on the inner bearing sleeve, the automatic feeding mechanism comprises a driving shaft arranged in a gear box, a big gear I and a small gear I are arranged on the driving shaft, an oil motor connected with the driving shaft is arranged on the gear box, a sliding gear shaft is arranged in the gear box, the gear shaft is connected with the push-pull rod through a transmission rod, a small gear II capable of being meshed with and separated from the big gear I is arranged on the gear shaft, a ball screw is arranged between the gear box and the grinding head body, a big gear II meshed with the small gear I is arranged on the ball screw is arranged in the gear box, and a nut screwed with the ball screw is arranged on the grinding head body.

Inventors

  • LU SHOUDONG
  • SHEN YUANYUAN
  • LI YONGPING
  • Meng Qinmei
  • Shao Yian

Assignees

  • 桂林桂北机器有限责任公司

Dates

Publication Date
20260508
Application Date
20250618

Claims (2)

  1. 1. The surface grinder hydraulic drive ball screw pair feeding device comprises a grinding head body (2) which is arranged on a carriage (1) through a front guide rail pair and a rear guide rail pair, and is characterized in that: The front end and the rear end of the carriage (1) are respectively provided with a manual feeding mechanism (3) and an automatic feeding mechanism (4); The manual feeding mechanism (3) comprises a hand wheel (31), a push-pull rod (32) and a bearing assembly arranged in the base, wherein the push-pull rod (32) is arranged in an inner bearing sleeve (33) of the bearing assembly, a key (34) and a key groove are in sliding fit between the push-pull rod (32) and the inner bearing sleeve (33), and the hand wheel (31) is arranged on the inner bearing sleeve (3); The automatic feeding mechanism (4) comprises a driving shaft (42) arranged in a gear box (41), a front large gear I (43) and a rear large gear I (44) and a small gear I (44) are arranged on the driving shaft (42), an oil motor (5) connected with the driving shaft (42) is arranged on the gear box (41), a gear shaft (45) capable of sliding forwards and backwards is arranged in the gear box (41), the front end of the gear shaft (45) is connected with a push-pull rod (32) through a transmission rod (7), a deflector rod (8) capable of touching the switch of the oil motor (5) is arranged at the rear end of the gear shaft (45), and a small gear II (46) capable of being meshed with and separated from the large gear I (43) is arranged on the gear shaft (45); A ball screw transmission pair (6) is arranged between the gear box (41) and the grinding head body (2), the ball screw transmission pair (6) comprises a nut (62) screwed on a ball screw (61), the rear part of the ball screw (61) is arranged in the gear box (41), a large gear II (47) meshed with a small gear I (44) is arranged on the rear part of the ball screw (61), and the nut (62) is arranged on the grinding head body (2); The push-pull rod (32) is pulled forwards to a manual gear, the small gear II (46) is meshed with the large gear I (43) to realize manual feeding, and the push-pull rod (32) is pushed backwards to an automatic gear, and the small gear II (46) is separated from the large gear I (43) to realize hydraulic driving automatic feeding.
  2. 2. The surface grinder hydraulic drive ball screw pair feeding device according to claim 1, wherein the gear shaft (45) is provided with a front annular bayonet and a rear annular bayonet, the gear box (41) is internally provided with clamping beads (9) which can be respectively clamped with the annular bayonets when the gear box returns elastically, and the positions of the two annular bayonets respectively correspond to the manual gear and the automatic gear of the push-pull rod (32).

Description

Hydraulic driving ball screw pair feeding device of surface grinder Technical Field The invention relates to plane grinding equipment, in particular to a plane grinding machine hydraulic drive ball screw pair feeding device. Background The surface grinder is a precise grinding device for processing a plane, and is widely applied to various fields of industrial production, such as precise grinding processing in the mechanical manufacturing industries of molds, tools, bearings, automobiles, ships, airplanes and the like. The transverse feeding mechanism of the grinding head is one of key components, is an important component for influencing the machining efficiency and the machining quality, and has very important functions for realizing precise grinding, high-precision size machining and on-line error compensation. Too large a lateral feed will result in too large a grinding surface roughness, while too small a feed will affect the machining efficiency and will have an automatic switching of the number of rough grinding, fine grinding and no feed grinding. Therefore, a reasonable infeed mechanism is critical, has an important impact on machining quality and efficiency, is particularly suitable for grinding high precision, high finish parts or tools, and has high grinding efficiency. Disclosure of Invention Aiming at the requirements of the prior art, the invention aims to solve the technical problem of providing the surface grinder hydraulic driving ball screw pair feeding device which is accurate in feeding, large in torque, strong in bearing, stable and reliable. The surface grinder hydraulic drive ball screw pair feeding device that can solve prior art problem, its technical scheme includes the bistrique body of installing on the planker through preceding, backward guide rail pair, and is different: 1. the front end and the rear end of the carriage are respectively provided with a manual feeding mechanism and an automatic feeding mechanism. 2. The manual feeding mechanism comprises a hand wheel, a push-pull rod and a bearing assembly arranged in the base, wherein the push-pull rod is arranged in an inner bearing sleeve of the bearing assembly, a key and a key groove are in sliding fit between the push-pull rod and the inner bearing sleeve, and the hand wheel is arranged on the inner bearing sleeve. 3. The automatic feeding mechanism comprises a driving shaft arranged in a gear box, a front large gear I and a rear large gear I and a small gear I are arranged on the driving shaft, an oil motor connected with the driving shaft is arranged on the gear box, a gear shaft capable of sliding forwards and backwards is arranged in the gear box, the front end of the gear shaft is connected with a push-pull rod through a transmission rod, a deflector rod capable of touching an oil motor switch is arranged at the rear end of the gear shaft, and a small gear II capable of being meshed with and separated from the large gear I is arranged on the gear shaft. 4. The ball screw transmission pair is arranged between the gear box and the grinding head body and comprises a nut screwed on the ball screw, the rear part of the ball screw is arranged in the gear box, a large gear II meshed with the small gear I is arranged on the rear part of the ball screw, and the nut is arranged on the grinding head body. 5. The push-pull rod is pulled forward to a manual gear, the small gear II is meshed with the large gear I (a shifting rod Guan Tingyou motor) to realize manual feeding, and the small gear II is separated from the large gear I (the shifting rod starts an oil motor) to realize hydraulic driving automatic feeding. Further, two annular bayonets in front of having offered on the gear shaft, back, be equipped with in the gear box can be respectively with the card pearl of each annular bayonet joint when the elasticity return, the position of two annular bayonets corresponds to the manual gear and the automatic gear of push-and-pull rod respectively. The invention has the beneficial effects that: The surface grinder hydraulic drive ball screw pair feeding device has the advantages of reasonable structure, sensitive and accurate feeding, good stability, large torque, strong bearing capacity, suitability for severe environments, high reliability, difficult external interference, light weight, dexterity, low noise, high precision, capability of meeting the requirement of high-precision transmission, high efficiency and high machining precision, and is not easy to be interfered by the outside, and the manual feeding adopts the secondary gear transmission. 1. The automatic feeding device is driven by a hydraulic motor, has larger torque output and continuous output, and is suitable for occasions requiring large torque, high load and heavy load. 2. The invention can easily adjust the rotating speed and the torque of the hydraulic motor through the hydraulic system so as to meet the working requirements of different working conditions. 3.