CN213258852U

CN213258852U - Deburring mechanism for plunger bushing oil flow hole

Info

Publication number: CN213258852U
Application number: CN202021869915.3U
Authority: CN
Inventors: 吴英杰; 陈云龙; 毛巍峰
Original assignee: Wuxi Bojie Precision Machinery Co ltd
Current assignee: Wuxi Bojie Precision Machinery Co ltd
Priority date: 2020-09-01
Filing date: 2020-09-01
Publication date: 2021-05-25
Anticipated expiration: 2030-09-01

Abstract

The utility model discloses a plunger bushing oil flow hole deburring mechanism, including last pneumatic cylinder, lower pneumatic cylinder, go up the piston cylinder, lower piston cylinder, go up the abrasive material through-hole, lower abrasive material through-hole, go up the abrasive material chamber, lower abrasive material chamber and abrasive material, it is provided with the backup pad to go up between pneumatic cylinder and the lower pneumatic cylinder, the lateral part level of backup pad is provided with the reference column, the shaft hole phase-match of reference column and plunger bushing, the bottom department of going up the abrasive material through-hole and the top department of lower abrasive material through-hole are provided with extension pipe and lower extension pipe respectively, it has cup jointed last butt joint pipe and lower butt joint pipe respectively through the screw thread to go up extension pipe and lower extension pipe, set up the locating hole that connects mutually with plunger bushing oil flow hole on the reference column. The utility model discloses a vertical space of flowing oil hole has not only shortened the flow distance as the abrasive material orbit that flows, has simplified the orbit that flows moreover, has reduced the flow resistance for the abrasive material can be better, faster get rid of the burr on the flowing oil hole, improved burring efficiency.

Description

Deburring mechanism for plunger bushing oil flow hole

Technical Field

The utility model belongs to the technical field of the plunger bushing, concretely relates to plunger bushing oil flow hole burring mechanism.

Background

In the production process of the plunger matching parts, the deburring of parts is very critical and is a very painful process, particularly, the deburring of the oil removing hole of the plunger sleeve is realized, and the flanging burr is formed at the penetrating part after the metal processing because the oil hole and the middle hole are penetrated. Although a certain deburring treatment (scraping and reaming) is performed before the heat treatment, the burr cannot be completely removed, only a few large obvious burrs can be removed, the intersecting hole opening presents obvious saw-tooth-shaped burrs under a magnifying glass, and after the heat treatment, the tooth-shaped burrs are just like a sharp knife which is vertically arranged at the edge of the intersecting hole, so that the problem of headache of most plunger manufacturers is solved by removing the sharp knife. Because the edge lines of the openings of the intersecting holes are not on the same plane, the edges are difficult to completely remove by rotating and scraping with a common rigid cutter, most plunger manufacturers at present adopt a flexible deburring cutter, but because of the special design requirements of the oil holes of the plunger sleeves, the edges of the openings of the oil holes of the plunger sleeves must be sharp and have no burrs (R0.03-R0.05), so the flexible deburring cutter has very high quality requirements, not only has certain deburring effect, but also can not form obvious chamfers, the cutting force of the cutter is moderate and can not be over sharp, most plunger processing manufacturers at present adopt an elastic diamond cutter, the main principle is that diamond powder particles are electroplated on an elastic mandrel with a groove in the middle, the cutting force of the diamond powder is utilized to be matched with the moderate elastic force of the elastic mandrel of a matrix, the cutting force of the elastic burr cutter is installed on a drill chuck of a drilling machine, the head of the elastic deburring cutter rotates at low speed, enters an oil, the edge of the hole is ground by the diamond powder at the head part of the cutter, so that burrs at the edge of the oil hole are removed, and a sharp edge (about R0.03) of the hole opening is ensured. The processing technology has high requirements on the electroplating quality of the diamond cutter, overlong electroplating time, ultra-poor dimension, over-short electroplating time and low cutter durability. At present, the service life of the cutter is generally between 100 and 200 pieces, the cutter cost is high (0.1 element/piece), and because the processing mode is manual operation, the aperture of an oil inlet and return hole is affected by external cooperation processing quality and heat treatment shrinkage hole in different sizes, the cutter clamping phenomenon is easily caused, and certain potential safety hazard exists during processing.

In order to solve the above problems, patent No. 201921682564.2 discloses a deburring device for a plunger bushing abrasive particle flow oil hole, which solves the above problems by using abrasive particles as an abrasive material to repeatedly flow, and improves the deburring quality of the flow oil hole.

Disclosure of Invention

The purpose of the invention is as follows: in order to overcome the defects in the prior art, the deburring mechanism for the plunger sleeve oil flow hole is high in deburring efficiency.

The technical scheme is as follows: in order to realize the above object, the utility model provides a plunger bushing oil flow hole deburring mechanism, including last pneumatic cylinder, lower pneumatic cylinder, go up the piston cylinder, lower piston cylinder, go up the abrasive material through-hole, lower abrasive material through-hole, go up the abrasive material chamber, lower abrasive material chamber and abrasive material, upward be provided with the backup pad between pneumatic cylinder and the lower pneumatic cylinder, the lateral part level of backup pad is provided with the reference column, the shaft hole phase-match of reference column and plunger bushing, the bottom department of going up the abrasive material through-hole and the top department of lower abrasive material through-hole are provided with extension pipe and lower extension pipe respectively, it has cup jointed last butt joint pipe and lower butt joint pipe respectively through the screw on extension pipe and the lower extension pipe, go up butt joint pipe and plunger bushing oil flow hole butt joint mutually and match down, set up the locating hole that connects mutually with plunger bushing oil flow hole on the reference column.

Furthermore, the upper butt joint pipe and the lower butt joint pipe are respectively sleeved on the upper extension pipe and the lower extension pipe.

Furthermore, be provided with on the reference column and be used for fixing tightening up the rubber ring of plunger bushing, ensure the stability of plunger bushing on the reference column, guarantee going on smoothly of burring.

Has the advantages that: compared with the prior art, the utility model, the vertical space that adopts the oil flow hole has not only shortened the flow distance as the abrasive material orbit that flows, has simplified the orbit that flows moreover, has reduced the flow resistance for the abrasive material can be better, faster get rid of the burr on the oil flow hole, improved burring efficiency.

Drawings

FIG. 1 is a schematic structural view of a deburring mechanism in an inoperative state;

FIG. 2 is a schematic structural view of the deburring mechanism in an operating state;

FIG. 3 is a schematic diagram of the structure of an upper extension pipe, a lower extension pipe, an upper butt pipe and a lower butt pipe.

Detailed Description

The present invention will be further clarified by the following description with reference to the attached drawings and specific examples, which should be understood as being merely illustrative of the present invention and not limiting the scope of the present invention, and modifications of various equivalent forms of the present invention by those skilled in the art after reading the present invention, all fall within the scope defined by the appended claims of the present application.

As shown in figures 1 and 3, the utility model provides a plunger bushing oil hole deburring mechanism, which comprises an upper hydraulic cylinder 1, a lower hydraulic cylinder 2, an upper piston cylinder 11, a lower piston cylinder 21, an upper abrasive through hole 13, a lower abrasive through hole 23, an upper abrasive cavity 12, a lower abrasive cavity 22 and an abrasive 3, wherein a support plate 4 is arranged between the upper hydraulic cylinder 1 and the lower hydraulic cylinder 2, the upper end and the lower end of the support plate 4 are respectively welded on the upper hydraulic cylinder 1 and the lower hydraulic cylinder 2, a positioning column 5 is horizontally arranged at the side part of the support plate 4, the positioning column 5 is matched with the shaft hole of the plunger bushing, an upper extension pipe 6 and a lower extension pipe 8 are respectively welded at the bottom end of the upper abrasive through hole 13 and the top end of the lower abrasive through hole 23, an upper butt joint pipe 7 and a lower butt joint pipe 9 are respectively sleeved on the upper extension pipe 6 and the lower extension pipe 8 through threads, the upper butt joint pipe 7 and the lower butt joint pipe 9 are respectively sleeved on the upper extension, the positioning column 5 is provided with a tightening rubber ring 10 for fixing the plunger sleeve, the upper butt joint pipe 7 and the lower butt joint pipe 9 are in butt joint matching with the plunger sleeve oil flow hole, and the positioning column 5 is provided with a positioning hole 51 in butt joint with the plunger sleeve oil flow hole.

In the present embodiment, the deburring mechanism is applied to the deburring operation of the oil flow hole 101 of the plunger sleeve 100, and referring to fig. 2, the specific flow is as follows:

firstly, a plunger sleeve 100 is sleeved on a positioning column 5, the plunger sleeve 100 is rotated to enable orifices at two ends of an oil flow hole 101 to be respectively aligned with an upper butt joint pipe 7 and a lower butt joint pipe 9, the upper butt joint pipe 7 and the lower butt joint pipe 9 are respectively rotated to carry out position adjustment, so that the upper butt joint pipe 7 and the lower butt joint pipe 9 are respectively butted to two orifices of the oil flow hole 101, then the tightening rubber ring 10 is sleeved on the plunger sleeve 100 to realize the fixation of the plunger sleeve 100, then the hydraulic system is started, the upper piston cylinder 11 and the lower piston cylinder 21 start to operate, the grinding materials 3 move back and forth between the upper grinding material cavity 12 and the lower grinding material cavity 22 through the upper grinding material through hole 13, the lower grinding material through hole 23, the upper extension pipe 6, the lower extension pipe 8, the upper butt joint pipe 7, the lower butt joint pipe 9, the oil flow hole 101 and the positioning hole 51, the abrasive 3 flowing in the process can well remove burrs on the oil flow hole 101, and the removal efficiency is obviously improved.

After the grinding materials are removed, the hydraulic system is closed, most of the grinding materials 3 are gathered in the lower grinding material cavity 22 under the action of gravity, the tightening rubber ring 10 is taken down, the positions of the upper butt joint pipe 7 and the lower butt joint pipe 9 are adjusted, and the plunger sleeve 100 is taken down from the positioning column 5.

Claims

1. The utility model provides a plunger bushing oil flow hole burring mechanism, includes last pneumatic cylinder, lower pneumatic cylinder, goes up the piston cylinder, down the piston cylinder, goes up the abrasive material through-hole, abrades the through-hole down, goes up the abrasive material chamber, abrades the chamber and the abrasive material down, its characterized in that: the grinding device is characterized in that a supporting plate is arranged between the upper hydraulic cylinder and the lower hydraulic cylinder, a positioning column is horizontally arranged on the side portion of the supporting plate and is matched with a shaft hole of the plunger sleeve, an upper extension pipe and a lower extension pipe are respectively arranged at the bottom of the upper grinding material through hole and the top of the lower grinding material through hole, the upper extension pipe and the lower extension pipe are respectively sleeved with the upper butt joint pipe and the lower butt joint pipe through threads, the upper butt joint pipe and the lower butt joint pipe are matched with the plunger sleeve oil flow hole in a butt joint mode, and a positioning hole which is in butt joint with the plunger sleeve oil flow hole is formed in the positioning column.

2. The plunger bushing oil flow hole deburring mechanism of claim 1, characterized in that: the upper butt joint pipe and the lower butt joint pipe are respectively sleeved on the upper extension pipe and the lower extension pipe.

3. The plunger bushing oil flow hole deburring mechanism of claim 1, characterized in that: and a tightening rubber ring for fixing the plunger sleeve is arranged on the positioning column.