CN-121973038-A - Automatic angle modulation type eccentric shaft grinding device

CN121973038ACN 121973038 ACN121973038 ACN 121973038ACN-121973038-A

Abstract

The invention discloses an automatic angle-adjusting eccentric shaft grinding device, which relates to the technical field of eccentric shaft grinding, and adopts the technical scheme that the automatic angle-adjusting eccentric shaft grinding device comprises a base, clamping assemblies and driving mechanisms, wherein a multi-shaft linear module is arranged on the base, grinding carriages are arranged on movable ends of the multi-shaft linear module, the two clamping assemblies are arranged up and down symmetrically, each clamping assembly comprises a cross arm, a first electric cylinder, a first thrust sensor, a transverse plate and clamping wheels, the driving mechanisms are arranged left and right symmetrically and comprise two driving mechanisms, each driving mechanism comprises a base, a second electric cylinder, a second thrust sensor, a vertical plate, a turntable, a transverse shaft and a motor, the grinding carriages are driven by the multi-shaft linear module to be close to the eccentric shafts, grinding wheels on the grinding carriages are abutted against parts clamped by the clamping wheels, the grinding wheels can grind and reduce the eccentric shafts of the parts by rotating around the axes of the grinding carriages without reciprocating motion along the radial directions, so that the cost of a machine tool is effectively.

Inventors

CHENG FENG
HOU JUN
GAO SONG

Assignees

江苏瑞璞智能制造科技有限公司

Dates

Publication Date: 20260505
Application Date: 20260323

Claims (5)

1. An automatic angle-adjusting eccentric shaft grinding device is characterized by comprising a base (1), a clamping assembly and a rotation driving mechanism; The base (1) is provided with a multi-axis linear module (2), and the movable end of the multi-axis linear module (2) is provided with a grinding carriage (3); The clamping assemblies are vertically symmetrically arranged in two, the two clamping assemblies are arranged on the grinding wheel frame (3), each clamping assembly comprises a cross arm (4), a first electric cylinder (5), a first push force sensor (6), a transverse plate (7) and clamping wheels (8), the cross arm (4) is fixedly connected with the grinding wheel frame (3), the first electric cylinder (5) is arranged on the cross arm (4), a piston rod of the first electric cylinder (5) penetrates through the cross arm (4) and is fixedly connected with the first push force sensor (6), one end, far away from the first electric cylinder (5), of the first push force sensor (6) is fixedly connected with the transverse plate (7), and a plurality of clamping wheels (8) are rotationally connected to the transverse plate (7); The utility model discloses a motor drive mechanism, including base (1), motor (1), drive mechanism, two drive mechanism all sets up on base (1), every drive mechanism all includes base (9), second electronic jar (10), second push away force sensor (11), riser (12), carousel (13), cross axle (14) and motor (15), base (9) and base (1) fixed connection, install second electronic jar (10) on base (9), the piston rod of second electronic jar (10) runs through base (9) and fixedly connected with second push away force sensor (11), one end fixedly connected with riser (12) of second electronic jar (10) are kept away from to second push away from to force sensor (11), rotation is connected with carousel (13) on riser (12), fixedly connected with cross axle (14) on carousel (13), cross axle (14) run through riser (12) and are connected with the output shaft transmission of motor (15), motor (15) are installed on riser (12).
2. The automatic angle-adjusting eccentric shaft grinding device according to claim 1, wherein a transverse frame (16) is fixedly connected to the side wall, far away from the motor (15), of the vertical plate (12), and a plurality of riding wheels (17) are rotatably connected to the transverse frame (16).
3. The automatic angle-adjusting eccentric shaft grinding device according to claim 1, wherein a circular rail (18) is fixedly connected to the turntable (13), a plurality of rollers (19) are clamped on the circular rail (18), and the rollers (19) are rotatably connected with the vertical plate (12).
4. The automatic angle-adjusting eccentric shaft grinding device according to claim 1, wherein the cross arm (4) is slidably connected with a plurality of first guide rods (20), and one ends of the first guide rods (20) are fixedly connected with the transverse plate (7).
5. The automatic angle-adjusting eccentric shaft grinding device according to claim 1, wherein the base (9) is slidably connected with a plurality of second guide rods (21), and one ends of the second guide rods (21) are fixedly connected with the vertical plates (12).

Description

Automatic angle modulation type eccentric shaft grinding device Technical Field The invention relates to the technical field of eccentric shaft grinding, in particular to an automatic angle-adjusting eccentric shaft grinding device. Background Eccentric shafts are a common mechanical part whose core structural feature is that there is an offset distance between the center line of the shaft (center of rotation) and the center line of the journal (bearing or rotating part is mounted), this distance being called eccentricity. The ingenious structural design can convert rotary motion into reciprocating linear motion or irregular plane motion, is widely applied to equipment such as crankshafts, vibrating screens, punching machines and clamping mechanisms of automatic machines of internal combustion engines, and is a key component for realizing specific complex motion. Because the eccentric shaft has a special structure, the grinding process is far more complicated than that of the common cylindrical grinding, and the prior art mainly adopts a tangential point tracking grinding method, and the core principle of the process is that in the grinding process, a workpiece (the eccentric shaft) rotates around the axis (C-axis motion), and meanwhile, the grinding carriage performs high-precision reciprocating motion (X-axis motion) along the radial direction according to the setting of the eccentric amount. The X axis and the C axis are subjected to two-axis linkage interpolation control through a numerical control system, so that the grinding wheel can accurately follow and contact the eccentric outer circle surface with continuously changing positions in rotation all the time, and precise cutting is realized. However, this grinding method requires a high machine tool, resulting in high grinding costs. Disclosure of Invention Aiming at the defects existing in the prior art, the invention aims to provide an automatic angle-adjusting eccentric shaft grinding device. In order to achieve the aim, the invention provides the technical scheme that the automatic angle-adjusting eccentric shaft grinding device comprises a base, a clamping assembly and a rotation driving mechanism; the base is provided with a multi-axis linear module, and the movable end of the multi-axis linear module is provided with a grinding carriage; The clamping assemblies are vertically symmetrically arranged in two, the two clamping assemblies are arranged on the grinding wheel frame, each clamping assembly comprises a cross arm, a first electric cylinder, a first push force sensor, a transverse plate and clamping wheels, the cross arm is fixedly connected with the grinding wheel frame, the cross arm is provided with the first electric cylinder, a piston rod of the first electric cylinder penetrates through the cross arm and is fixedly connected with the first push force sensor, one end of the first push force sensor, far away from the first electric cylinder, is fixedly connected with the transverse plate, and a plurality of clamping wheels are rotationally connected on the transverse plate; The driving mechanism is symmetrically arranged on the left side and the right side, the driving mechanism is arranged on the base, each driving mechanism comprises a base, a second electric cylinder, a second thrust sensor, a vertical plate, a rotary table, a transverse shaft and a motor, the base is fixedly connected with the base, the second electric cylinder is mounted on the base, a piston rod of the second electric cylinder penetrates through the base and is fixedly connected with the second thrust sensor, one end of the second electric cylinder, far away from the second electric cylinder, of the second thrust sensor is fixedly connected with the vertical plate, the rotary table is connected onto the vertical plate in a rotating mode, the transverse shaft penetrates through the vertical plate and is in transmission connection with an output shaft of the motor, and the motor is mounted on the vertical plate. According to still further technical scheme, the side wall, far away from the motor, of the vertical plate is fixedly connected with a transverse frame, and a plurality of riding wheels are rotatably connected to the transverse frame. According to still further technical scheme, the rotary table is fixedly connected with a ring rail, a plurality of rollers are clamped on the ring rail, and the rollers are all in rotary connection with the vertical plate. According to still further technical scheme, the cross arm is connected with a plurality of first guide rods in a sliding mode, and one ends of the first guide rods are fixedly connected with the transverse plate. According to still further technical scheme, the base is connected with a plurality of second guide rods in a sliding mode, and one ends of the second guide rods are fixedly connected with the vertical plates. Compared with the prior art, the invention has the following beneficial effects: 1. The