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CN-224209526-U - Clamping and fixing mechanism for screw machining

CN224209526UCN 224209526 UCN224209526 UCN 224209526UCN-224209526-U

Abstract

The utility model discloses a clamping and fixing mechanism for screw machining, which relates to the technical field of bolt machining and comprises a main clamping frame, a detachable clamping frame, a fixing bolt, a rubber pad, a connecting chuck and a transmission shaft. The utility model can share one set of clamp in the whole process of screw processing by the structural design of the mutual matching of the main clamping frame and the detachable clamping frame, thereby avoiding the trouble caused by frequent disassembly and processing and effectively improving the processing efficiency, the servo motor is used for driving the clamp and the workpiece to overturn, the hydraulic cylinder drives the two main clamping frames to be separated outwards by the expansion of the rod body so as to facilitate unloading and reloading, and in addition, the bearing sleeve is arranged and inserted between the main clamping frame and the fixed seat, thereby bearing the pressure of the servo motor, the hydraulic cylinder and other parts and the force in the vertical direction caused in the processing process and avoiding damaging the rod shaft part of the motor or the hydraulic cylinder.

Inventors

  • LIU GAOJU

Assignees

  • 怡高汽车零部件(苏州)有限公司

Dates

Publication Date
20260508
Application Date
20250513

Claims (6)

  1. 1. The clamping and fixing mechanism for screw machining is characterized by comprising a main clamping frame (1), detachable clamping frames (2), fixing bolts (3), rubber pads (4), connecting chucks (5) and a transmission shaft (6), wherein the two main clamping frames (1) are provided with a front part and a rear part, the two main clamping frames (1) are attached to form a cuboid structure, inserting grooves are formed in the lower sides of the main clamping frames (1), detachable clamping frames (2) which are square structures are inserted into grooves in the lower sides of the main clamping frames (1), clamping groove structures are formed in the middle parts of the adjacent sides of the two main clamping frames (1), the upper half parts of the clamping groove structures are of round structures, the lower half parts of the clamping groove structures are of long columns, threaded holes are formed in the positions of the left side and the right side of the main clamping frames (1) in a downward penetrating mode, threaded sections of the fixing bolts (3) penetrate through the threaded holes and are propped against the side faces of the detachable clamping frames (2), annular clamping frames (5) are arranged between the heads of the fixing bolts (3) and the main clamping frames (1), and the connecting chucks (5) are arranged at the positions, which are far away from the center of the connecting chucks (5), and the connecting chucks (5) are connected with one end face of the connecting chuck.
  2. 2. The clamping and fixing mechanism for screw machining according to claim 1, further comprising a mounting sleeve (7), a servo motor (8), a hydraulic cylinder (9) and a fixing seat (10), wherein the mounting sleeve (7) is arranged at the transmission shaft (6) on the front side and the rear side of the main clamping frame (1), the servo motor (8) is embedded and arranged at one end, close to the transmission shaft (6), of the mounting sleeve (7), an output shaft of the servo motor (8) is inserted and fixed in the transmission shaft (6), the hydraulic cylinder (9) is embedded and arranged at the outer end of the mounting sleeve (7), the telescopic end of the hydraulic cylinder (9) is outwards arranged and fixedly connected to the central position of the fixing seat (10), and the fixing seat (10) is of a square structure and is provided with the front side and the rear side.
  3. 3. The clamping and fixing mechanism for screw machining according to claim 2, further comprising a clamping sleeve ring (11), a clamping groove (12), a fixing block (13) and a bearing sleeve (17), wherein one end of the fixing seat (10) close to the middle side of the device is fixedly connected with the clamping sleeve ring (11), the clamping sleeve ring (11) and the circle center of the connecting chuck (5) are positioned on the same horizontal axis, an annular clamping groove (12) is formed in the inner side of the fixing seat (10) and surrounds the clamping sleeve ring (11), the clamping groove (12) is the same as the annular clamping groove on the outer end face of the connecting chuck (5), the end part of the telescopic end of the hydraulic cylinder (9) is fixedly connected with the circular fixing block (13), the fixing block (13) is fixedly connected with the fixing seat (10) through a bolt, the bearing sleeve (17) is sleeved on the outer side of the mounting sleeve (7), one end of the bearing sleeve ring is fixedly connected in the annular clamping groove on the outer side of the connecting chuck (5), the other end of the bearing sleeve (17) is sleeved on the outer side of the clamping sleeve ring (11), and the other end of the bearing sleeve (17) is sleeved on the outer side of the clamping sleeve ring (11) and is in sliding connection with the clamping sleeve ring (11) when the clamping sleeve ring (11) is inserted into the end part of the clamping sleeve ring (17).
  4. 4. The clamping and fixing mechanism for screw machining according to claim 3, further comprising fixing legs (16), wherein quarter-round grooves are formed in four corners of the inward side of the fixing base (10), four fixing legs (16) are formed, and bolt through holes are formed in the fixing legs (16).
  5. 5. The clamping and fixing mechanism for screw machining according to claim 1, further comprising an inclination sensor (14), wherein the inclination sensor (14) is embedded and installed in the main clamping frame (1) positioned on the left side, the inclination sensor (14) is embedded and installed in the main clamping frame (1) positioned on the left front side, and the inclination sensor (14) is electrically connected with a controller of the servo motor (8) in a bidirectional mode.
  6. 6. The clamping and fixing mechanism for screw machining according to claim 1, further comprising reinforcing blocks (15), wherein the reinforcing blocks (15) with four right trapezoid structures are fixedly connected to the outer side of one end, close to the connecting chuck (5), of the transmission shaft (6), the reinforcing blocks (15) are distributed in a circumferential array, and the longer bottom edges of the reinforcing blocks are fixedly connected with the connecting chuck (5).

Description

Clamping and fixing mechanism for screw machining Technical Field The utility model relates to the technical field of bolt processing, in particular to a clamping and fixing mechanism for screw processing. Background The screw processing is a multi-step precision manufacturing process, the processed wire rod is subjected to cold heading to form the basic shape of the screw, then the screw is formed through a tooth grinding process, and the end part of the screw can be sharpened through adding cutting equipment; In the prior art, when a screw is processed, a clamping assembly is needed to convey a screw workpiece at each station, clamping and fixing are needed to be carried out again in each processing program, time is consumed, processing efficiency is affected, the existing clamping and fixing framework lacks protection of power devices such as a hydraulic cylinder and a motor, and the power devices are damaged by axial pressure during processing. Disclosure of utility model The technical problem to be solved by the utility model is to overcome the existing defects, and provide the clamping and fixing mechanism for screw processing, and the main clamping frame and the detachable clamping frame are mutually matched in structural design, so that a set of clamp can be shared in the whole screw processing process, thereby avoiding the trouble caused by frequent disassembly and assembly processing and effectively improving the processing efficiency; in addition, through setting up the bearing sleeve, and the cartridge is between main clamping frame and fixed seat, can bear the pressure of parts such as servo motor, pneumatic cylinder, etc. and the vertical force that causes in the course of working, avoid causing the damage to the pole shaft position of motor or pneumatic cylinder, can solve the problem in the background art effectively. The clamping and fixing mechanism for screw machining comprises a main clamping frame, detachable clamping frames, fixing bolts, rubber gaskets, connecting chucks and a transmission shaft, wherein the main clamping frame is provided with a front clamping frame and a rear clamping frame, the two main clamping frames are attached to form a cuboid structure, inserting grooves are formed in the lower sides of the main clamping frames, detachable clamping frames which are both square structures are inserted into grooves in the lower sides of the main clamping frames, clamping groove structures are formed in the middle parts of the adjacent sides of the two main clamping frames, the upper half parts of the clamping groove structures are of round structures, the lower half parts of the clamping groove structures are of long columns and penetrate through the two detachable clamping frames downwards, threaded holes are formed in the positions, close to the lower sides, of the left side and the right side of the main clamping frames, of the fixing bolts penetrate through the threaded holes and are propped against the side faces of the detachable clamping frames, the rubber gaskets are embedded between the heads of the fixing bolts, one ends, far away from the clamping groove structures, of the main clamping frames are fixedly connected with the connecting chucks, the center parts of the connecting chucks are fixedly connected with the transmission shaft, and the end faces of the connecting chucks are provided with concentric annular clamping grooves which are arranged on the connecting chucks. When the screw heads are formed, the servo motors at two sides are electrified to work, the middle main clamping frame and the screw workpieces are driven to rotate through the transmission shaft, after the screw workpieces rotate to be horizontal, the fixing bolts are screwed down, the detachable clamping frame can be detached, so that the shaft sections of the screw workpieces are exposed, at the moment, screw processing is convenient, after the screw processing is finished, the screw workpieces continue to rotate, the screw sections of the screw workpieces face upwards, the heads face downwards, at the moment, the end parts of screw shaft bodies are conveniently cut to form tip ends or chamfer structures of the screws, clamps at two sides are separated after the cutting is finished, the formed screws automatically drop, the problem that frequent dismounting and processing are troublesome is avoided due to the structural design that the main clamping frame and the detachable clamping frame are mutually matched in the whole screw processing, the screw processing is effectively improved, and the tightening efficiency of the screw processing is effectively improved. Further, still include installation sleeve, servo motor, pneumatic cylinder and fixing base, the transmission shaft department of both sides all is provided with an installation sleeve around the main clamping frame, and the one end that installation sleeve is close to the transmission shaft inlays and establishes and install servo motor