Riveting mechanism for reinforcing ring of commutator

Abstract

The utility model discloses a commutator reinforcing ring riveting mechanism which comprises a lower riveting assembly, the lower riveting assembly comprises a lower riveting piece, a lower jacking piece and a lower material blocking piece which are coaxially arranged, the upper end of the lower jacking piece is a jacking end, and the thickness of the jacking end is smaller than that of a reinforcing ring; the riveting end face of the lower riveting piece is an inclined face and inclines downwards towards the outer edge. During material receiving, the lower material blocking piece and the lower jacking piece are in a step shape, the outer edge of the riveting end face is lower than the jacking end face of the lower jacking piece, and the vertical orthographic projection of the reinforcing ring on the lower jacking piece is arranged on the riveting end face. During riveting, the lower jacking piece moves upwards to push the reinforcing ring to enter an annular groove defined by the commutator segment inner hooks, the lower riveting piece moves upwards, the riveting end face extrudes the inner hooks, the riveting end face pushes the inner hooks to be bent towards the reinforcing ring and arranged below the reinforcing ring, and after the lower jacking piece moves downwards to be reset, the riveted inner hooks support the reinforcing ring. And the reinforcing ring is locked in the annular groove, so that the commutator is kept in a cylindrical shape.

Description

TECHNICAL FIELD

[0001] The utility model relates to the commutator processing field, concretely is commutator reinforcing ring riveting mechanism. BACKGROUND

[0002] The commutator is arranged by several commutator sheets, and the commutator sheet is fixed by rubber band after arranging on the plastic sleeve, and the commutator sheet is surrounded to form a cylindrical shape after arranging, and the inner hook of the commutator sheet is surrounded to form an annular groove. In order to make the commutator sheet keep the shape after arranging, the reinforcing ring is put into the annular groove, and the inner hook is riveted and pressed to lock the reinforcing ring in the annular groove, so that the commutator sheet keeps the cylindrical shape after arranging.

[0003] The existing riveting mechanism mainly presses the inner hook by the riveting head, so that the inner hook is deformed, but the deformation caused by the front extrusion is small, and the reinforcing ring cannot be stably locked, the probability of the reinforcing ring separating from the inner hook is high, and the arranged commutator sheet is loose. UTILITY MODEL CONTENTS

[0004] In view of the technical problems in the background art, the utility model solves the technical problems and aims at providing a commutator reinforcing ring riveting mechanism with better locking effect.

[0005] In order to solve the above technical problems, the utility model adopts the technical scheme: the commutator reinforcing ring riveting mechanism, characterized by comprising a lower riveting assembly, the lower riveting assembly comprises a coaxially arranged lower riveting piece, a lower pressing piece and a lower material blocking piece, the lower riveting piece, the lower pressing piece and the lower material blocking piece are sequentially arranged from inside to outside and are in sliding cooperation with each other.

[0006] The upper end of the lower pressing piece is a pressing end, and the thickness of the pressing end is smaller than the thickness of the reinforcing ring;

[0007] The riveting end surface of the lower riveting piece is inclined and inclined downward toward the outer edge;

[0008] When receiving the material, the lower material blocking piece and the lower pressing piece are in a stepped shape, the outer edge of the riveting end surface is lower than the pressing end surface of the lower pressing piece, and the reinforcing ring on the lower pressing piece is vertically orthogonally projected on the riveting end surface.

[0009] The lower pressing piece holds the reinforcing ring, and the lower material blocking piece is blocked outside the reinforcing ring, the position of the reinforcing ring is accurately positioned, the lower pressing piece moves upward to push the reinforcing ring into the annular groove surrounded by the inner hook, the lower riveting piece moves upward, the riveting end surface extrudes the inner hook, because the upper pressing end is narrower than the reinforcing ring, there is a space below the reinforcing ring, the riveting end surface pushes the inner hook to be distorted in the direction of the reinforcing ring and placed below the reinforcing ring, after the lower pressing piece moves downward to reset, the riveted inner hook holds the reinforcing ring and locks the reinforcing ring in the annular groove, so that the commutator keeps the cylindrical shape.

[0010] As preferred, the lower end of the lower top pressing piece is thicker than the top pressing end, the upper end and the lower end of the lower top pressing piece are stepped, and the lower riveting pressing piece is matched with the lower top pressing piece. The lower top pressing piece is narrow at the upper end and wide at the lower end, which can make the thickness of the top pressing end narrower than the thickness of the reinforcing ring and ensure sufficient strength of the lower top pressing piece.

[0011] As preferred, the lower riveting pressing assembly further comprises a transmission assembly for driving the lower riveting pressing assembly to move between the lower reinforcing ring station and the lower riveting pressing station.

[0012] The lower riveting pressing station is provided with a first power piece for driving the lower riveting pressing piece to move upward for riveting pressing operation. The lower riveting pressing assembly receives the reinforcing ring and the riveting pressing of the reinforcing ring is performed in two stations.

[0013] As preferred, the lower riveting pressing assembly further comprises a lower seat, and the first power piece acts on the lower seat.

[0014] The lower riveting pressing piece is installed on the lower seat, and a cavity is formed between the lower end of the lower riveting pressing piece and the lower end of the lower material blocking piece. A first spring is arranged in the cavity, and the two ends of the first spring act on the lower top pressing piece and the lower seat. The first power piece can drive the lower top pressing piece and the lower riveting pressing piece simultaneously.

[0015] As preferred, the lower material blocking piece is arranged on the lower seat, and a second spring is arranged between the lower material blocking piece and the lower seat. The lower seat is provided with a mounting groove for the second spring. The first power piece can also drive the lower material blocking piece, and the overall structure is more compact. Only one power piece can drive the lower top pressing piece, the lower riveting pressing piece and the lower material blocking piece, and the cost of the equipment is lower.

[0016] As preferred, the lower end of the lower material blocking piece is provided with a boss, and a limiting seat is arranged outside the boss of the lower material blocking piece. The limiting seat is connected with the lower seat. The limiting seat cooperates with the boss to movably arrange the lower material blocking piece on the lower seat.

[0017] As preferred, the transmission assembly comprises a swing arm and a second power piece for driving the swing arm to swing.

[0018] The swing arm is provided with a plurality of columns, and the lower seat is hung on the columns and is provided with a guide hole matched with the columns. A return spring is arranged between the swing arm and the lower seat.

[0019] In the lower riveting pressing station, the first power piece drives the lower seat to move upward along the columns.

[0020] As preferred, the reversing ring riveting pressing mechanism further comprises an upper riveting pressing assembly, and the upper riveting pressing assembly comprises an upper top pressing piece and an upper riveting pressing piece arranged coaxially. The upper top pressing piece is arranged outside the upper riveting pressing piece, and the two are in sliding cooperation.

[0021] The lower end of the upper top pressing piece is an upper top pressing end, and the thickness of the upper top pressing end is narrower than the thickness of the reinforcing ring.

[0022] The upper riveting and pressing end surface of the upper riveting and pressing piece is inclined and inclines upward toward the outer edge, the outer edge of the upper riveting and pressing end surface is higher than the upper pressing end surface of the lower pressing piece, and the upper riveting and pressing end surface covers part of the reinforcing ring in vertical orthographic projection.

[0023] The upper riveting and pressing assembly further comprises an upper seat as preferred, and the upper seat is connected with a third power piece driving the upper seat to lift and lower.

[0024] The upper riveting and pressing piece is arranged on the upper seat, and a third spring is arranged between the upper riveting and pressing piece and the upper seat.

[0025] The upper pressing piece is arranged on the upper seat, and a buffer piece is arranged between the upper pressing piece and the upper seat.

[0026] The upper riveting and pressing assembly adopts the third power piece to drive the upper pressing piece and the upper riveting and pressing piece to lift and lower. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 It is a schematic view of the riveting and pressing of the utility model.

[0028] Figure 2 It is a schematic view of the lower riveting and pressing assembly of the utility model.

[0029] Figure 3 It is a sectional view of the lower riveting and pressing assembly of the utility model.

[0030] Figure 4 It is the commutator after riveting and pressing of the utility model.

[0031] Figure 5 It is the commutator after riveting and pressing of the utility model Figure 3 A enlarged view of A.

[0032] Figure 6 It is the commutator after riveting and pressing of the utility model Figure 1 A enlarged view of B.

[0033] Fig. 1 is a commutator; 11 is a commutating sheet; 12 is a reinforcing ring; 13 is an inner hook; 14 is an annular groove; 2 is a lower riveting and pressing assembly; 21 is a lower material blocking piece; 211 is a boss; 22 is a lower pressing piece; 221 is a pressing end; 23 is a lower riveting and pressing piece; 231 is a riveting and pressing end surface; 24 is a lower seat; 25 is a limiting seat; 26 is a cavity; 27 is a first spring; 28 is a second spring; 29 is a mounting groove; 3 is an upper riveting and pressing assembly; 31 is an upper pressing piece; 311 is an upper pressing end; 32 is an upper riveting and pressing piece; 321 is an upper riveting and pressing end surface; 33 is a third spring; 34 is a buffer piece; 35 is an upper seat; 4 is a swing arm; 41 is a vertical column; 42 is a return spring. DETAILED DESCRIPTION

[0034] The following describes the embodiments and related details and working principle of this utility model with reference to the accompanying drawings. This commutator reinforcing ring riveting mechanism includes a lower riveting assembly 2, which includes a coaxially arranged lower riveting member 23, a lower top pressing member 22, and a lower stop member 21. The lower riveting member, lower top pressing member, and lower stop member are arranged sequentially from the inside to the outside and slide relative to each other vertically, i.e., they are nested together. During lifting, adjacent members also serve as guides and limiters, ensuring stable lifting and preventing radial displacement. The upper end of the lower top pressing member 22 is a top pressing end 221, and the thickness of the top pressing end 221 is narrower than the thickness of the reinforcing ring 12. The riveting end face 231 of the lower riveting member 23 is an inclined surface that slopes downwards towards the outer edge (see attached drawing). Figure 5 The outer edge of the riveting end face 231 is the lowest point. During material receiving, the lower stop 21 and the lower top pressing member 22 are stepped. The lower top pressing member is used to support the reinforcing ring, and the lower stop 21 blocks outside the reinforcing ring to accurately position it. The outer edge of the riveting end face 231 is lower than the top pressing end face of the lower top pressing member, and the vertical projection of the reinforcing ring on the lower top pressing member 22 is on the riveting end face 231. The thickness of the top pressing end 221 is narrower than that of the reinforcing ring, and part of the reinforcing ring is suspended, leaving a gap below the reinforcing ring 12. The side of the lower riveting member 23 is close to the lower top pressing member 22, so the outer edge of the riveting end face 231 of the lower riveting member is directly below the reinforcing ring. When the lower riveting member 23 moves upward to squeeze the inner hook, the riveting end face 231 pushes the inner hook 13 to bend towards the reinforcing ring and place it below the reinforcing ring. (See attached figure) Figure 4 After the lower pressing member 22 moves down and resets, the riveted inner hook 13 supports the reinforcing ring 12 and locks the reinforcing ring in the annular groove 14, so that the commutator 1 remains cylindrical.

[0035] To facilitate material receiving by the lower riveting assembly, the lower riveting assembly 2 also includes a transmission assembly for driving the lower riveting assembly 2 to move between the lower ring reinforcement station and the lower riveting station; the lower riveting station is equipped with a first power component for driving the lower riveting component 23 to move upward for riveting operations, and the first power component is movably engaged with the lower riveting assembly 2. At the lower ring reinforcement station, the lower riveting assembly 2 receives the reinforcing ring, and at the lower riveting station, it performs the lower riveting operation.

[0036] The lower riveting assembly 2 further includes a lower seat 24, on which the first power component acts. The lower riveting component 23 is mounted on the lower seat 24, and a cavity 26 is formed between the lower end of the lower riveting component 23 and the lower end of the lower stop component 21. A first spring 27 is provided within the cavity 26, and both ends of the first spring 27 act on the lower pressing component 22 and the lower seat 24. The lower stop component 21 is disposed on the lower seat 24, and a second spring 28 is provided between the lower stop component 21 and the lower seat 24. The lower seat 24 is provided with a mounting groove 29 for the second spring 28 to be inserted. (See attached document) Figure 3The lower end of the lower material blocking piece 21 is provided with a boss 211, the boss 211 of the lower material blocking piece is sleeved with a limiting seat 25, the limiting seat 25 is connected with the lower seat 24, the elastic force of the second spring 28 acts on the lower material blocking piece 21, the limiting seat 25 blocks the boss 211, and the lower material blocking piece 21 is movably arranged on the lower seat 24. The transmission assembly comprises a swing arm 4 and a second power piece for driving the swing arm to swing, a plurality of stand columns 41 are arranged on the swing arm 4, the lower seat 24 is hung on the stand columns 41 and is provided with guide holes matched with the stand columns 41, and a reset spring 42 is arranged between the swing arm 4 and the lower seat 24. In the lower riveting and pressing position, the first power piece drives the lower seat 24 to move upwards along the stand columns 41, first, the lower material blocking piece 21 is blocked by the reversing piece 11, the second spring 28 is pressed, then the lower pressing piece 22 pushes the reinforcing ring into the annular groove 14, along with the continuous upward movement of the lower seat 24, the first spring 27 is pressed, and the lower riveting and pressing piece 23 extrudes the inner hook to make the inner hook bend outward to lock the reinforcing ring 12. After the riveting and pressing are completed, the first power piece retreats, the elastic force of the reset spring 42 makes the lower seat 24 move downwards along the stand columns 41 and reset, and the first spring 27 and the second spring 28 respectively push the lower pressing piece 22 and the lower material blocking piece 21 to move upwards and reset.

[0037] The lower end of the lower pressing piece 22 is thicker than the pressing end 221, the upper end and the lower end of the lower pressing piece 22 are in a stepped shape, and the lower riveting and pressing piece 23 is matched with the lower pressing piece 22. That is, the lower pressing piece 22 is narrow at the upper end and wide at the lower end, so that the thickness of the pressing end 221 is narrower than the thickness of the reinforcing ring, and the thickness is increased to improve the strength of the lower pressing piece 22, and at the same time, the lower end of the lower riveting and pressing piece 23 and the lower end of the lower material blocking piece 21 also provide a cavity 26 with sufficient width, which can also accommodate a thicker spring with a higher elastic coefficient.

[0038] The inner hook of the reversing piece has an upper hook and a lower hook, the upper hook is fixed through the upper reinforcing ring, the lower hook is fixed through the lower reinforcing ring, the lower riveting and pressing assembly 2 is used for riveting and pressing the lower reinforcing ring, the upper reinforcing ring is riveted and pressed by the upper riveting and pressing assembly, and the riveting and pressing of the upper reinforcing ring and the lower reinforcing ring can be simultaneously performed or separately performed.

[0039] The upper riveting and pressing assembly 3 comprises an upper pressing member 31 and an upper riveting and pressing member 32 coaxially arranged, the upper pressing member 31 is sleeved outside the upper riveting and pressing member 32, and the two are slidingly matched; the lower end of the upper pressing member 31 is an upper pressing end 311, the thickness of the upper pressing end 311 is smaller than the thickness of the reinforcing ring; the upper riveting and pressing end surface 321 of the upper riveting and pressing member 32 is inclined outward and upward, the outer edge of the upper riveting and pressing end surface 3211 is higher than the upper pressing end 311 of the lower pressing member 22, and the vertical projection of the upper riveting and pressing end surface 321 covers part of the reinforcing ring. The upper riveting and pressing assembly 3 further comprises an upper seat 35, the upper seat 35 is connected with a third power member for driving the upper seat 35 to move up and down; the upper riveting and pressing member 32 is arranged on the upper seat 35, and a third spring 33 is arranged between the upper riveting and pressing member 32 and the upper seat 35; the upper pressing member 31 is arranged on the upper seat 35, and a buffer member 34 is arranged between the upper pressing member 31 and the upper seat 35, the buffer member 34 can be a rubber pad and a spring. Similarly, the third power member drives the upper seat 35 to move downward, the upper pressing member 31 presses against the reinforcing ring, the upper riveting and pressing end surface 321 extrudes the inner hook 13, the inner hook is bent outward to lock the reinforcing ring 12, and the buffer member 34 and the third spring 33 are compressed at this time. After riveting and pressing are completed, the third power member is retracted, the upper seat 35 is driven to move upward, and the buffer member 34 and the third spring 33 respectively push the upper pressing member 31 and the upper riveting and pressing member 32 to reset.

Claims

1. A commutator reinforcement ring swaging mechanism, characterized by: The lower riveting and pressing assembly comprises coaxially arranged lower riveting and pressing member, lower pressing member and lower material blocking member, and the lower riveting and pressing member, the lower pressing member and the lower material blocking member are arranged in sequence from inside to outside and are in sliding cooperation with each other in the up-down direction; The upper end of the lower pressing member is a pressing end, and the thickness of the pressing end is smaller than the thickness of the reinforcing ring; The riveting and pressing end surface of the lower riveting and pressing member is a slope surface and is inclined downward toward the outer edge; When receiving the material, the lower material blocking member and the lower pressing member are in a stepped shape, the outer edge of the riveting and pressing end surface is lower than the pressing end surface of the lower pressing member, and the reinforcing ring on the lower pressing member is vertically orthographically projected on the riveting and pressing end surface.

2. The commutator reinforcement ring swaging mechanism of claim 1, wherein: The lower end of the lower pressing member is thicker than the pressing end, and the upper end and the lower end of the lower pressing member are in a stepped shape, and the lower riveting and pressing member is matched with the lower pressing member.

3. The commutator reinforcement ring swaging mechanism of claim 1, wherein: The lower riveting and pressing assembly further comprises a transmission assembly for driving the lower riveting and pressing assembly to move between the lower reinforcing ring station and the lower riveting and pressing station; The lower riveting and pressing station is provided with a first power member for driving the lower riveting and pressing member to move upward for riveting and pressing operation.

4. The commutator reinforcement ring swaging mechanism of claim 3, wherein: The lower riveting and pressing assembly further comprises a lower seat, and the first power member acts on the lower seat; The lower riveting and pressing member is installed on the lower seat, and a cavity is formed between the lower end of the lower riveting and pressing member and the lower end of the lower material blocking member, and a first spring is arranged in the cavity, and the two ends of the first spring act on the lower pressing member and the lower seat.

5. The commutator reinforcement ring swaging mechanism of claim 4, wherein: The lower material blocking member is arranged on the lower seat, and a second spring is arranged between the lower material blocking member and the lower seat, and the lower seat is provided with a mounting groove for accommodating the second spring.

6. The commutator reinforcement ring swaging mechanism of claim 5, wherein: The lower end of the lower material blocking member is provided with a boss, and the boss of the lower material blocking member is externally provided with a limiting seat, and the limiting seat is connected with the lower seat.

7. The commutator reinforcement ring swaging mechanism of claim 4, wherein: The transmission assembly comprises a swing arm and a second power member for driving the swing arm to swing; The swing arm is provided with a plurality of vertical columns, the lower seat is hung on the vertical columns, and a guide hole matched with the vertical column is arranged on the swing arm, and a return spring is arranged between the swing arm and the lower seat; In the lower riveting and pressing station, the first power member drives the lower seat to move upward along the vertical column.

8. The commutator reinforcement ring swaging mechanism of claim 1, wherein: The reversing device reinforcing ring riveting and pressing mechanism further comprises an upper riveting and pressing assembly, the upper riveting and pressing assembly comprises coaxially arranged upper pressing member and upper riveting and pressing member, the upper pressing member is arranged outside the upper riveting and pressing member, and the two members are in sliding cooperation with each other in the up-down direction; The lower end of the upper pressing member is an upper pressing end, and the thickness of the upper pressing end is smaller than the thickness of the reinforcing ring; The upper riveting and pressing end surface of the upper riveting and pressing member is a slope surface and is inclined upward toward the outer edge, the outer edge of the upper riveting and pressing end surface is higher than the upper pressing end surface of the lower pressing member, and the upper riveting and pressing end surface vertically orthographically covers part of the reinforcing ring.

9. The commutator reinforcement ring swaging mechanism of claim 8, wherein: The upper riveting and pressing assembly further comprises an upper seat, and the upper seat is connected with a third power member for driving the upper seat to move up and down; The upper riveting and pressing member is arranged on the upper seat, and a third spring is arranged between the two members; The upper pressing member is arranged on the upper seat, and a buffer member is arranged between the two members.

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