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CN-121988692-A - Bearing inner and outer ferrule cold heading forming equipment

CN121988692ACN 121988692 ACN121988692 ACN 121988692ACN-121988692-A

Abstract

The invention relates to the technical field of cold heading forming equipment, in particular to cold heading forming equipment for an inner ferrule and an outer ferrule of a bearing, which comprises a cold heading machine body, wherein a feeding mechanism is arranged at the feeding end of the cold heading machine body and comprises two guide rods, a movable frame, two first springs, a driving assembly and a clamping assembly; the two guide rods are fixedly arranged on the outer side of the cold heading machine body in parallel, two ends of the movable frame are respectively arranged on the two guide rods in a sliding mode, two first springs are respectively sleeved on the two guide rods, the driving assembly is arranged on the cold heading machine body to drive the movable frame to move, and the clamping assembly is arranged on the inner side of the movable frame to clamp a steel pipe or a wire rod. The clamping assembly is in static friction with the steel pipe or the wire rod, so that the steel pipe or the wire rod is conveyed according to the expected condition under the clamping of the clamping assembly, and the problem that product defects exist due to insufficient feeding or excessive feeding is effectively avoided.

Inventors

  • WANG WEIZHEN
  • GAO XIANG
  • JIA XIAOPENG

Assignees

  • 安徽宝航轴承有限公司

Dates

Publication Date
20260508
Application Date
20230627

Claims (8)

  1. 1. The cold heading forming device for the inner and outer ferrules of the bearing comprises a cold heading machine body (1), and is characterized in that a feeding mechanism (2) is arranged at a feeding end of the cold heading machine body (1), the feeding mechanism (2) comprises two guide rods (21), a movable frame (22), two first springs (23), a driving assembly (24) and a clamping assembly (25), the two guide rods (21) are fixedly arranged on the outer side of the cold heading machine body (1) in parallel, two ends of the movable frame (22) are respectively and slidably arranged on the two guide rods (21), the two first springs (23) are respectively sleeved on the two guide rods (21), the driving assembly (24) is arranged on the cold heading machine body (1) to drive the movable frame (22) to move, and the clamping assembly (25) is arranged on the inner side of the movable frame (22) to clamp a steel pipe or wire rod (3).
  2. 2. The bearing inner and outer ring cold heading forming device according to claim 1, wherein the driving assembly (24) comprises a motor (241), a cam piece (242), a movable rod (243) and a first pressing wheel (244), the motor (241) is fixedly arranged on the outer side of the cold heading machine body (1), an output shaft is connected with the cam piece (242), the movable rod (243) penetrates through the side wall of one side of the movable frame (22) and is in sliding connection with the movable frame (22), the first pressing wheel (244) is rotatably arranged at one end of the movable rod (243) and intermittently contacts with the cam piece (242), and the other end of the movable rod (243) can be abutted against the side wall of the other side of the movable frame (22).
  3. 3. The bearing inner and outer ring cold heading forming device according to claim 2, wherein the clamp assembly (25) comprises two rotating rods (257) and two clamp chucks (258), one ends of the two rotating rods (257) are rotatably connected with the inner wall of the movable frame (22) through pin shafts, and the two clamp chucks (258) are fixedly arranged at the other ends of the two rotating rods (257) respectively.
  4. 4. The bearing inner and outer ring cold heading forming device according to claim 3, wherein the clamping assembly (25) further comprises a fixed plate (251), a sliding rod (252), a second wedge-shaped block (253), a U-shaped toothed plate (254), a second spring (255) and two gears (256), the fixed plate (251) is fixedly installed on the inner side of the movable frame (22), the sliding rod (252) penetrates through the fixed plate (251) and is in sliding connection with the fixed plate (251), the second wedge-shaped block (253) is fixedly installed at one end of the sliding rod (252), the U-shaped toothed plate (254) is fixedly installed at the other end of the sliding rod (252), the second spring (255) is sleeved on the sliding rod (252) and is located between the fixed plate (251) and the second wedge-shaped block (253), and the two gears (256) are respectively and fixedly connected with the two rotating rods (257) in a coaxial mode and are meshed with the U-shaped toothed plate (254).
  5. 5. The bearing inner and outer ring cold heading forming device according to claim 4, wherein a first wedge block (245) is fixedly installed on the movable rod (243), and the first wedge block (245) can be matched with a second wedge block (253).
  6. 6. The bearing inner and outer ring cold heading forming device according to claim 5, wherein the inner sides of the two clamp chucks (258) are respectively provided with a corresponding clamping groove (259), and the inner walls of the clamping grooves (259) are respectively provided with anti-skid patterns.
  7. 7. The bearing inner and outer ring cold heading forming device according to claim 6, wherein the cam member (242) comprises a rotating wheel (2421), a guide sleeve (2422), a pressing rod (2423), a second pressing wheel (2424) and a cylinder (2425), the rotating wheel (2421) is fixedly installed on an output shaft of the motor (241), the guide sleeve (2422) is fixedly installed on the outer side of the rotating wheel (2421), the pressing rod (2423) penetrates through the guide sleeve (2422) and is in sliding connection with the guide sleeve (2422), the cylinder (2425) is fixedly installed on the inner side of the rotating wheel (2421), an output end of the cylinder (2423) is fixedly connected with one end of the pressing rod, and the second pressing wheel (2424) is rotatably installed on the other end of the pressing rod (2423) and is in intermittent contact with the first pressing wheel (244).
  8. 8. The bearing inner and outer ring cold heading forming device as claimed in claim 7, wherein the hollow structure inside the rotating wheel (2421), and the side surface of the pressing rod (2423) contacted with the first pressing wheel (244) is an inclined surface structure.

Description

Bearing inner and outer ferrule cold heading forming equipment Technical Field The invention relates to the technical field of bearing inner and outer ring cold heading forming equipment, in particular to bearing inner and outer ring cold heading forming equipment. Background The cold header is equipment for forging and forming bars or wires at room temperature, and can directly form materials into required shapes and sizes by adopting a cold header method, so that a large amount of materials can be saved, the production efficiency can be greatly improved, and the mechanical strength of a part to be upsetted can be remarkably improved; the feeding mechanism of the cold header needs to convey the bar or wire to the cold header for corresponding processing, and the feeding mechanism of the cold header in the prior art mainly carries out feeding through a ratchet pawl structure, as shown in fig. 1 and 2, the first connecting rod 102 swings through the rotation of the cam 101, so that the second connecting rod 103 drives the third connecting rod 104 to swing synchronously, the pawl 105 drives the ratchet 106 to rotate unidirectionally, the ratchet 106 is coaxially connected with the driving gear 107, so that the driving gear 107 drives the transmission gear 108 to rotate, the feeding roller 109 further conveys the wire 20, the tension spring 100 can return to an initial position when the first connecting rod 102 reaches a maximum stroke, and intermittent feeding of the wire 20 is finally realized; During the process of conveying the wire 20 by the feed roller 109, the wire 20 is mainly moved by the friction force between the feed roller 109 and the wire 20, but due to the relative displacement between the wire 20 and the feed roller 109, the friction between the wire 20 and the feed roller 109 is sliding friction, the outer surface of the feed roller 109 becomes smooth after being subjected to long-time sliding friction, the friction force between the feed roller 109 and the wire 20 can be reduced, the problem of local slipping can occur, once slipping occurs, the wire 20 cannot move, the wire 20 cannot be conveyed according to the expected condition during the feeding, the problem of insufficient feeding length or overlong feeding to generate small materials can occur, and the subsequent processing work is affected. Disclosure of Invention The invention aims to solve the problem that the prior art has defects of insufficient feeding length or overlong feeding and produces products, and provides cold heading forming equipment for inner and outer ferrules of a bearing. In order to achieve the above purpose, the present invention adopts the following technical scheme: The cold heading forming device for the inner and outer ferrules of the bearing comprises a cold heading machine body, wherein a feeding mechanism is arranged at the feeding end of the cold heading machine body and comprises two guide rods, a movable frame, two first springs, a driving assembly and a clamping assembly, the two guide rods are fixedly arranged on the outer side of the cold heading machine body in parallel, two ends of the movable frame are respectively and slidably arranged on the two guide rods, the two first springs are respectively sleeved on the two guide rods, the driving assembly is arranged on the cold heading machine body to drive the movable frame to move, and the clamping assembly is arranged on the inner side of the movable frame to clamp a steel pipe or a wire rod. Preferably, the driving assembly comprises a motor, a cam piece, a movable rod and a first pressing wheel, wherein the motor is fixedly arranged on the outer side of the cold header body, an output shaft is connected with the cam piece, the movable rod penetrates through the side wall of one side of the movable frame and is in sliding connection with the movable frame, the first pressing wheel is rotatably arranged at one end of the movable rod and intermittently contacts with the cam piece, and the other end of the movable rod can be abutted against the side wall of the other side of the movable frame. Preferably, the clamping assembly comprises two rotating rods and two clamping heads, wherein one ends of the two rotating rods are rotationally connected with the inner wall of the movable frame through pin shafts, and the two clamping heads are respectively and fixedly arranged at the other ends of the two rotating rods. The clamping assembly comprises a movable frame, a clamping plate, a fixed plate, a sliding rod, a second wedge-shaped block, a U-shaped toothed plate, a second spring and two gears, wherein the fixed plate is fixedly arranged on the inner side of the movable frame, the sliding rod penetrates through the fixed plate and is in sliding connection with the fixed plate, the second wedge-shaped block is fixedly arranged at one end of the sliding rod, the U-shaped toothed plate is fixedly arranged at the other end of the sliding rod, the second sprin