CN114378761A

CN114378761A - Punching tool for locking cup

Info

Publication number: CN114378761A
Application number: CN202210121505.8A
Authority: CN
Inventors: 刁国鑫; 张智; 索文旭; 吕向平; 姜丽娟; 马德宇; 柴文虎; 曲建
Original assignee: Harbin Electric Power Equipment Co Ltd
Current assignee: Harbin Electric Power Equipment Co Ltd
Priority date: 2022-02-09
Filing date: 2022-02-09
Publication date: 2022-04-22
Anticipated expiration: 2042-02-09
Also published as: CN114378761B

Abstract

The invention relates to a locking cup punching tool which comprises a hole chiseling device, a chiseling body and a piston, and is used for fixing a locking cup when a locking structure of the locking cup is adopted, wherein the hole chiseling device (1) consists of an upper handle (2) and a lower thin cylinder (3), the chiseling body (6) is cup-shaped, a round hole (8) is formed in the wall of the cup, a waist-shaped hole (9) is formed in the position which is 180 degrees from the round hole (8), a reducing through hole (10) is formed in the lower portion of the wall of the cup, and the piston (11) is placed in the reducing through hole. When the locking cup is used, the inclined plane (5) at the end part of the hole chiseling device (1) can convert downward axial force into radial force, so that the radial punching of the wall of the locking cup is realized.

Description

Punching tool for locking cup

Technical Field

The invention relates to a punching tool for a locking cup.

Background

The locking cup is by round steel processing, the bottom has the cup-shaped part of through-hole, and the locking cup structure is the main locking structure who is applied to at present to install parts such as thrust axle bush insulating layer, guide bearing seat and use socket head cap screw in the shielding main pump, has the reliability height, saves space, advantage such as non-maintaining, and the theory of operation is: the surface of the locked object and the surface of the inner hexagon screw head are respectively provided with openings, when the locked object is installed, the locking cup is arranged in a counter bore of the locked object, then the inner hexagon screw is screwed in, after the screw is screwed down according to the appointed torque, the upper cup wall of the locking cup is respectively chiseled into the openings on the surface of the locked object and the openings on the screw by a chisel and a hand hammer along the axial force application of the screw, so that the locking cup, the inner hexagon screw and the locked object are relatively stopped. In the operation process, the locking cup is easy to rotate relatively in the circumferential direction or move relatively in the axial direction, in order to solve the problem, a through hole or a ring groove is usually processed in a counter bore, when a screw is not screwed in, the lower part of the cup wall of the locking cup is punched into the through hole or the ring groove of the counter bore, and therefore the locking cup can be guaranteed to be reliably fixed before punching the cup wall on the upper part. However, unlike the axial cutout in the upper cup wall of the punch lock cup, it is difficult to radially apply a force to the punch lock cup in the radial direction in the cup due to insufficient space.

The invention content is as follows:

the invention relates to a locking cup punching tool which is used for punching and chiseling the wall of a locking cup in the radial direction so as to achieve the effect of fixing the locking cup when the locking cup is installed. The technical scheme of the invention is as follows: the utility model provides a locking cup punching and chiseling instrument, chisel hole ware (1) comprises handle (2) and the integrative thin cylinder (3) in lower part on upper portion, the handle has the annular knurl, cylinder pin (4) are radially installed to thin cylinder (3), thin cylinder (3) tip has inclined plane (5), chisel body (6) are in proper order outside locking cup (7) and the part (15) of being locked that processing has through hole (14), chisel body (6) are the cup, the cup wall of chisel body (6) is opened has round hole (8), the cup wall and round hole (8) of chisel body (6) are 180 positions and are opened waist hole (9), the cup wall lower part of chisel body (6) is opened has a reducing through-hole (10), piston (11) in reducing through-hole (10), piston (11) are the cylinder that the thickness is different in both ends, there are first sphere (12) and second sphere (13) respectively at the piston both ends, the thin cylinder (3) part of chisel body (1) is joined in marriage the dress together with the chisel body (6).

The working principle of the invention is as follows:

as shown in figure 1, the locking cup punching tool, a hole chiseling device (1) is composed of an upper handle (2) and a lower thin cylinder (3), knurling is processed on the handle, a cylindrical pin (4) is radially arranged on the thin cylinder, an inclined surface (5) is processed on the end portion, when the locking cup punching tool is used, the thin cylinder portion of the hole chiseling device is arranged in a chiseling body (6), a locking cup (7) and a locked component processed with a through hole are sequentially arranged outside the chiseling body (6), the chiseling body (6) is cup-shaped, a circular hole (8) is formed in the cup wall, a waist-shaped hole (9) is formed in the position of 180 degrees with the circular hole (8), a reducing through hole (10) is formed in the lower portion of the cup wall, a piston (11) is placed on the cylinder with two ends different in thickness, and a first spherical surface (12) and a second spherical surface (13) are respectively arranged at the two ends of the piston.

When the force is applied downwards to the hole chiseling device (1), the cylindrical pin (4) on the hole chiseling device moves along the waist-shaped hole (9) on the chisel body (6), so that the hole chiseling device is prevented from rotating, the round hole (8) on the chisel body is used for detaching the cylindrical pin (4), and the variable-diameter through hole (10) on the chisel body is used for enabling the piston (11) to punch the locking cup (7) along the radial direction and simultaneously not to be separated from the chisel body.

The machining clearance between the locking cup and the hexagon socket head screw head part is controlled to be about 0.1-0.55, the clearance between the chisel body and the locking cup is controlled to be 0.02-0.05, when the locking cup is punched, in order to ensure that the piston is aligned with the through hole (14) outside the cup wall, marks can be respectively made on the chisel hole device (1) and the object to be locked, a punching tool is placed into the locking cup, the chisel hole device (1) is pressed downwards with force, the lower part of the cup wall of the locking cup is expanded and bulged, the lower part of the cup wall of the locking cup is completely attached to the through hole, and therefore the locking cup and the object to be locked are stopped.

The invention has the technical effects that:

the locking cup punching tool is characterized in that a punching body and a hole chiseling device are matched for use, and the punching tool, the locking cup and the inner hexagon screw are matched in specification. The locked component is processed with a counter bore for screwing in the socket head cap screw, and an annular groove or a through hole is processed at a certain fixed depth, and the specific form depends on the shape and the processing difficulty of the locked component. After the machined locked component is placed at the installation position, the locking cup is placed in the counter bore, the punching tool is placed in the locking cup, the hole chiseling device is pressed downwards and forcefully, in the process, the cylindrical pin arranged on the hole chiseling device moves along the waist-shaped hole in the hole chiseling body, and the hole chiseling device is prevented from rotating in the pressing process. The locking cup punching tool is characterized in that the locking cup is pressed until the lower surface of a handle of a hole chiseling device is contacted with a chisel body, the spherical surface of a piston is extruded by an inclined surface at the end part of the hole chiseling device, the inclined surface converts downward force into radial force, the piston extrudes the locking cup along the radial direction, the locking cup expands and bulges, and a bulge is completely attached to a through hole in a locked part, so that the locking cup is fixed on the locked part.

Drawings

FIG. 1 is a schematic view of the overall structure of a punching tool with a locking cup

FIG. 2 is a schematic view of a hole drilling machine

FIG. 3 is a schematic view of a chisel body

FIG. 4 is a schematic view of the piston structure

The specific implementation mode is as follows:

a locking cup punching and chiseling tool is characterized in that a chiseling device 1 is composed of a handle 2 at the upper portion and a thin cylinder 3 at the lower portion, the handle is provided with knurling, a cylindrical pin 4 is radially installed on the thin cylinder 3, an inclined surface 5 is arranged at the end portion of the thin cylinder 3, a locking cup 7 and a locked part 15 with a through hole 14 are sequentially arranged outside the chiseling body 6 as shown in figure 1, the chiseling body 6 is cup-shaped, a circular hole 8 is formed in the cup wall of the chiseling body 6, a kidney-shaped hole 9 is formed in the position, where the cup wall of the chiseling body 6 and the circular hole 8 form an angle of 180 degrees, a reducing through hole 10 is formed in the lower portion of the cup wall of the chiseling body 6, a piston 11 is arranged in the reducing through hole 10, the piston 11 is a cylinder with two ends different in thickness as shown in figure 4, a first spherical surface 12 and a second spherical surface 13 are respectively arranged at the two ends of the piston, and the thin cylinder 3 of the chiseling device 1 and the chiseling body 6 are arranged together as shown in figure 1.

A counter bore for placing an inner hexagon screw and a locking cup 7 is processed on an object to be locked 15, a through hole 14 is processed at the lower part of the counter bore, marking the surface of the object to be locked, marking the position of the through hole, placing the locking cup into the counter bore of the object to be locked after the object to be locked is assembled at the installation position, then a punching and chiseling tool is put in, at the moment, the end surface of the hole chiseling device handle 2 is not jointed with the end surface of the chisel body 6, namely, the spherical surface 13 of the piston does not extend out of the wall of the chisel, downward force is applied to the chisel device, the force is converted into radial force by the inclined surface 5 at the end part of the chisel device and is transmitted to the piston, the piston presses the wall of the locking cup under the action of the radial force, the wall of the locking cup expands and bulges, completely fit into the through hole 14 of the object to be locked, the punching tool is taken out, the punching tool is rotated 180 degrees and placed back into the locking cup, and punching is performed once again in the opposite direction, so that the locking cup 7 is stopped relative to the object to be locked 15.

Claims

1. A locking cup punching tool is characterized in that: the hole chiseling machine (1) is composed of a handle (2) on the upper portion and a thin cylinder (3) integrated with the lower portion, the handle is provided with knurls, a cylindrical pin (4) is radially installed on the thin cylinder (3), an inclined surface (5) is arranged at the end portion of the thin cylinder (3), a locking cup (7) and a locked part (15) with a through hole (14) are sequentially arranged outside the chisel body (6), the chisel body (6) is cup-shaped, a round hole (8) is formed in the cup wall of the chisel body (6), a waist-shaped hole (9) is formed in the positions, 180 degrees, of the cup wall of the chisel body (6) and the round hole (8), a reducing through hole (10) is formed in the lower portion of the cup wall of the chisel body (6), a piston (11) is assembled in the reducing through hole (10), the piston (11) is a cylinder with two ends different in thickness, a first spherical surface (12) and a second spherical surface (13) are respectively arranged at the two ends of the piston, and the thin cylinder (3) of the hole chiseling machine (1) and the chisel body (6) are assembled together.