CN213258853U

CN213258853U - Improved plunger sleeve oil flow hole deburring mechanism

Info

Publication number: CN213258853U
Application number: CN202021869966.6U
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 an improved generation plunger bushing oil flow hole burring 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 connecting block between pneumatic cylinder and the lower pneumatic cylinder, the side of connecting block is provided with the constant head tank, set up respectively on the constant head tank with last butt joint hole and the lower butt joint hole of last abrasive material through-hole and lower abrasive material through-hole butt joint, still be provided with in the constant head tank with plunger bushing assorted reference column, be provided with the locating hole on the reference column, go up butt joint hole, lower butt joint hole and locating hole and plunger bushing's oil flow hole butt joint and match. 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

Improved plunger sleeve oil flow hole deburring mechanism

Technical Field

The utility model belongs to the technical field of the plunger bushing, concretely relates to improved generation 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 improved plunger sleeve oil flow hole deburring mechanism with high deburring efficiency is provided.

The technical scheme is as follows: in order to realize the above-mentioned purpose, the utility model provides an improved generation plunger bushing oil flow hole burring mechanism, including last pneumatic cylinder, lower pneumatic cylinder, go up the piston cylinder, lower pneumatic 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 connecting block between pneumatic cylinder and the lower pneumatic cylinder, the side of connecting block is provided with the constant head tank, set up respectively with last butt joint hole and the lower butt joint hole of last abrasive material through-hole and lower abrasive material through-hole butt joint on the constant head tank, still be provided with in the constant head tank with plunger bushing assorted reference column, be provided with the locating hole on the reference column, go up butt joint hole, lower butt joint hole and locating hole and plunger bushing's oil flow hole butt.

Furthermore, the positioning column is located at the center of the positioning groove.

Furthermore, the deburring device also comprises a rubber tightening ring used for fixing the plunger sleeve, and the stability of the plunger sleeve on the positioning column is ensured in the deburring process.

Has the advantages that: compared with the prior art, the utility model, through last abrasive material through-hole, go up the oil flow hole, the locating hole of butt joint hole, plunger bushing, butt joint hole and lower abrasive material through-hole form a fore-and-aft passageway, adopt the vertical space of oil flow hole as the abrasive material orbit that flows, not only shortened the flow distance, simplified the orbit that flows moreover, 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 structural view of a connecting block;

fig. 4 is a schematic view of the plunger fitted over the connecting block.

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 fig. 1, 3 and 4, the utility model provides an improved plunger sleeve oil flow 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 material through hole 13, a lower abrasive material through hole 23, an upper abrasive material cavity 12, a lower abrasive material cavity 22, an abrasive material 3 and a rubber tightening ring 7, wherein a connecting block 4 is arranged between the upper hydraulic cylinder 1 and the lower hydraulic cylinder 2, the upper end and the lower end of the connecting block 4 are respectively fixed on the upper hydraulic cylinder 1 and the lower hydraulic cylinder 2, a positioning groove 6 with a circular structure is arranged on the side surface of the connecting block 4, an upper butt-joint hole 41 and a lower butt-joint hole 42 which are respectively butt-jointed with the upper abrasive material through hole 13 and the lower abrasive material through hole 23 are arranged on the positioning groove 6, a positioning column 5 matched with the plunger sleeve 100 is also arranged at the central position in the positioning groove 6, the inner end of the positioning column 5, the positioning column 5 is provided with a longitudinal positioning hole 51, and the upper butt joint hole 41, the lower butt joint hole 42 and the positioning hole 51 are in butt joint matching with the oil flow hole 101 of the plunger sleeve 100.

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 bushing 100 is sleeved on a positioning column 5 and extends into a positioning groove 6, the plunger bushing 100 on the positioning column 5 is rotated, so that the upper and lower orifices of a flow oil hole 101 are respectively butted with an upper positioning hole 51, an upper butting hole 41 and a lower butting hole 42, a rubber tightening ring 7 is tightly sleeved on the plunger bushing 100 after butting, and the plunger bushing 100 is fixed, thus a longitudinal channel is formed between an upper grinding material cavity 12 and a lower grinding material cavity 22 by an upper grinding material through hole 13, the upper butting hole 41, the flow oil hole 101, the positioning hole 51, the lower butting hole 42 and a lower grinding material through hole 23, the channel is a grinding material channel 8, then a hydraulic system is started, the upper piston cylinder 11 and the lower piston cylinder 21 start to operate, a grinding material 3 moves back and forth between the upper grinding material cavity 12 and the lower grinding material cavity 22 through the grinding material channel 8, and burrs on the flow oil hole 101 can be well removed by the grinding material 3 flowing in the process, 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 rubber tightening ring 7 is taken down, and the plunger sleeve 100 is taken down from the positioning column 5.

Claims

1. The utility model provides an improved generation plunger sleeve oil flow hole burring mechanism, includes last pneumatic cylinder, lower pneumatic cylinder, goes up the piston cylinder, piston cylinder down, goes up the abrasive material through-hole, lower abrasive material through-hole, goes up the abrasive material chamber, lower abrasive material chamber and abrasive material, its characterized in that: the grinding head is characterized in that a connecting block is arranged between the upper hydraulic cylinder and the lower hydraulic cylinder, a positioning groove is arranged on the side face of the connecting block, an upper butt joint hole and a lower butt joint hole which are respectively in butt joint with the upper grinding material through hole and the lower grinding material through hole are formed in the positioning groove, a positioning column matched with the plunger sleeve is further arranged in the positioning groove, a positioning hole is formed in the positioning column, and the upper butt joint hole, the lower butt joint hole and the positioning hole are in butt joint matching with the oil flowing hole of the plunger sleeve.

2. The improved plunger sleeve oil flow hole deburring mechanism of claim 1, wherein: the positioning column is located in the center of the positioning groove.

3. The improved plunger sleeve oil flow hole deburring mechanism of claim 1, wherein: the plunger piston also comprises a rubber tightening ring used for fixing the plunger sleeve.