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CN-122008281-A - Mechanical arm for machining automobile parts

CN122008281ACN 122008281 ACN122008281 ACN 122008281ACN-122008281-A

Abstract

The invention discloses a mechanical arm for processing automobile parts, which comprises a fixed base, a main arm, a small arm, a wrist joint arm, a rack and a loading and turning unit, wherein the upper end surface of the fixed base is rotatably connected with a rotary support, the main arm is rotatably assembled on the rotary support, a large arm servo motor is installed on the rotary support, the output end of the large arm servo motor is connected with the main arm through a speed reducer for transmission, the small arm is rotatably connected with the upper end of the main arm, the front end servo motor for driving the small arm is installed on the main arm, the wrist joint arm is rotatably assembled at the other end of the small arm, the rack is fixedly assembled on the wrist joint arm, the loading and turning unit is installed on the rack, and the wrist joint arm of the mechanical arm is assembled with the loading and turning unit through the rack.

Inventors

  • ZHANG TING

Assignees

  • 无锡畅喆久诚科技有限公司

Dates

Publication Date
20260512
Application Date
20260311

Claims (10)

  1. 1. Mechanical arm for processing automobile parts, which is characterized in that the mechanical arm comprises: the upper end surface of the fixed base (1) is rotatably connected with a rotary support (11); The main arm (12) is rotationally assembled on the rotary support (11), a large arm servo motor is installed on the rotary support (11), and the output end of the large arm servo motor is connected with the main arm (12) through a speed reducer for transmission; A small arm (13) with one end rotatably connected with the upper end of the main arm (12), wherein the main arm (12) is provided with a front end servo motor (14) for driving the small arm; The wrist joint arm is rotatably assembled at the other end of the forearm (13); the frame (2) is fixedly assembled on the wrist joint arm; The loading overturning unit (3) is arranged on the frame (2).
  2. 2. The mechanical arm for machining automobile parts according to claim 1, wherein a reference plate (21) is fixed on one side end surface of the frame (2), a plurality of first sliding rails are fixed on the reference plate (21) in parallel, and a connecting plate (22) is connected to each of the first sliding rails in a sliding manner; The device is characterized in that a fixing plate (23) is arranged on one side, far away from the frame (2), of the reference plate (21) in parallel, second sliding rails (24) are symmetrically and vertically arranged on the fixing plate (23), sliding blocks corresponding to the second sliding rails (24) are fixed on the connecting plates (22), and the sliding blocks are in sliding connection with the second sliding rails (24).
  3. 3. The mechanical arm for machining automobile parts according to claim 2, wherein the loading turnover units (3) are a plurality of arranged and fixed on the fixed plate (23), and each loading turnover unit (3) is respectively connected with the bracket (25) in a rotating way; The fixed plate (23) is positioned on one side of each loading and overturning unit (3) and is rotationally connected with a telescopic cylinder (26), and the other ends of the telescopic cylinders (26) are respectively hinged with the loading and overturning units (3).
  4. 4. The mechanical arm for machining automobile parts according to claim 1, wherein the loading and turning unit (3) comprises: The upper end and the lower end of the steel frame plate (31) are vertically provided with mounting holes; the clamping shafts (4) are arranged up and down, and each clamping shaft (4) is respectively and slidably connected in the mounting hole; the sleeve shafts (32) are coaxially fixed at the opposite end parts of the two clamping shafts (4), and the other end of each clamping shaft (4) is fixedly provided with a lug (33); The two compression bars (34) are arranged up and down, and one end of each compression bar (34) is respectively and rotatably connected with the steel frame plate (31); the hydraulic telescopic cylinders (35) are arranged in two and are vertically symmetrically fixed on the steel frame plate (31), connecting plates (36) are fixed at the other ends of the hydraulic telescopic cylinders (35), guide frames (37) are rotatably connected to the connecting plates (36), and the other ends of the guide frames (37) are rotatably connected with the compression rods (34).
  5. 5. The mechanical arm for machining automobile parts according to claim 4, wherein supporting springs (38) are sleeved outside the clamping shafts (4), and one ends of the supporting springs (38) are connected with the steel frame plate (31).
  6. 6. A mechanical arm for machining automobile parts according to claim 4, wherein the two hydraulic telescopic cylinders (35) are independently driven and controlled.
  7. 7. The mechanical arm for machining automobile parts according to claim 4, wherein the clamping shaft (4) is of a two-section structure, one section is an extension shaft (41), the other section is a steel shaft (42), and one end of the steel shaft (42) is slidably connected in the extension shaft (41); a plurality of elastic supporting shafts (43) are distributed on the inner circumference of the lengthened shaft (41), and the other end of each elastic supporting shaft (43) is connected with the steel shaft (42); the lengthened shaft (41) is fixed with an excitation shaft (44).
  8. 8. A mechanical arm for machining automobile parts according to claim 7, wherein a vibration terminal (45) corresponding to the excitation shaft (44) is provided below the extension shaft (41) at an end of the steel shaft (42), and when the steel shaft (42) slides toward the extension shaft (41) to a set position, the vibration terminal (45) contacts with the excitation shaft (44) and vibration is provided by the excitation shaft (44).
  9. 9. The mechanical arm for machining automobile parts according to claim 7, wherein a steel sleeve (46) is connected in a sliding manner to the lengthened shaft (41), a plurality of fixing holes corresponding to the spring supporting shafts (43) are formed in the steel sleeve (46), and each spring supporting shaft (43) is connected with the fixing hole in a sliding manner.
  10. 10. The mechanical arm for machining automobile parts according to claim 9, wherein a guide rod (47) is slidably connected to the extension shaft (41) above the spring support shaft (43), the lower end of the guide rod (47) is connected with the steel sleeve (46), a screw (48) is rotatably connected to the extension shaft (41), and the lower end of the screw (48) is slidably connected with the guide rod (47) through threads.

Description

Mechanical arm for machining automobile parts Technical Field The invention belongs to the technical field of mechanical arms, and particularly relates to a mechanical arm for machining automobile parts. Background In the field of automobile manufacturing, especially in the process of welding and final assembly of a vehicle body, the edge treatment (such as flanging, edge wrapping and roll forming) of parts is a key process for guaranteeing the structural strength, appearance quality and assembly precision of the vehicle body, in a traditional automatic production line, a mechanical arm usually only plays the role of 'material handling', and has a single function. Disclosure of Invention In order to achieve the above purpose, the invention provides a mechanical arm for processing automobile parts, which comprises the following technical scheme: The upper end surface of the fixed base is rotatably connected with a rotary support; The main arm is rotationally assembled on a rotary support, a large arm servo motor is installed on the rotary support, and the output end of the large arm servo motor is connected with the main arm through a speed reducer for transmission; One end of the small arm is rotatably connected with the upper end of the main arm, and the front end servo motor for driving the small arm is arranged on the main arm; the wrist joint arm is rotationally assembled at the other end of the small arm; the rack is fixedly assembled on the wrist joint arm; And the loading overturning unit is arranged on the frame. Further, preferably, a reference plate is fixed on one side end surface of the frame, a plurality of first sliding rails are fixed on the reference plate in parallel, and a connecting plate is connected to each of the first sliding rails in a sliding manner; The reference plate is provided with a fixed plate in parallel on one side far away from the frame, second sliding rails are symmetrically and vertically arranged on the fixed plate, sliding blocks corresponding to the second sliding rails are fixed on the connecting plates, and the sliding blocks are in sliding connection with the second sliding rails. Further, preferably, the loading and overturning units are arranged in a plurality, a bracket is fixed on the fixing plate, and each loading and overturning unit is respectively connected with the bracket in a rotating way; the fixed plate is positioned on one side of each loading and overturning unit and is rotationally connected with a telescopic cylinder, and the other end of the telescopic cylinder is respectively hinged with the loading and overturning units. Further, preferably, the loading and turning unit includes: the steel frame plate is vertically provided with mounting holes at the upper end and the lower end; The clamping shafts are arranged up and down, and each clamping shaft is respectively and slidably connected in the mounting hole; the sleeve shafts are coaxially fixed at the opposite end parts of the two clamping shafts, and the other end of each clamping shaft is fixedly provided with a lug; the two compression bars are arranged up and down, and one end of each compression bar is respectively and rotatably connected with the steel frame plate; The hydraulic telescopic cylinders are arranged in two and vertically symmetrically fixed on the steel frame plate, the other ends of the hydraulic telescopic cylinders are respectively fixed with a connecting plate, guide frames are rotationally connected to the connecting plates, and the other ends of the guide frames are rotationally connected with the compression bars. Further, preferably, supporting springs are sleeved outside the clamping shafts, and one ends of the supporting springs are connected with the steel frame plates. Further, preferably, the two hydraulic telescopic cylinders are independently driven and controlled. Further, preferably, the clamping shaft is provided with a two-section structure, wherein one section is an extension shaft, the other section is a steel shaft, and one end of the steel shaft is slidably connected in the extension shaft; the inner circumference of the lengthened shaft is provided with a plurality of elastic supporting shafts, and the other end of each elastic supporting shaft is connected with the steel shaft; And the lengthened shaft is fixed with an excitation shaft. Further, preferably, a vibration terminal corresponding to the excitation shaft is provided below the extension shaft at an end of the steel shaft, and when the steel shaft slides in the extension shaft to a set position, the vibration terminal contacts with the excitation shaft, and vibration is provided by the excitation shaft. Further, preferably, a steel sleeve is slidably connected in the extension shaft, a plurality of fixing holes corresponding to the spring support shafts are formed in the steel sleeve, and each spring support shaft is slidably connected with the fixing hole. Further, preferably, a guide rod is