CN203738560U

CN203738560U - Taper hole grinding tool

Info

Publication number: CN203738560U
Application number: CN201420004493.1U
Authority: CN
Inventors: 周晓军; 刘春伟; 张力; 王卫刚; 杜淑萍; 罗震; 金鑫
Original assignee: Baoji Oilfield Machinery Co Ltd
Current assignee: Baoji Oilfield Machinery Co Ltd
Priority date: 2014-01-03
Filing date: 2014-01-03
Publication date: 2014-07-30
Anticipated expiration: 2024-01-03

Abstract

The utility model discloses a taper hole grinding tool which comprises a grinding head. The grinding head is connected with one end of a connecting rod, and the other end of the connecting rod is hinged to a taper shank by a universal joint; three V-shaped grooves are formed in a taper surface of the grinding head; the connecting rod is connected with the grinding head at the taper of 1:50. One end of the taper shank is hinged to the universal joint by a taper pin, and the other end of the taper shank is connected with a common drilling machine at the No.6 Morse taper. The taper hole grinding tool has the advantages that coaxial taper holes in two positions of an inner cavity of a hydraulic cylinder of a plunger pump can be ground and machined on the common drilling machine, compression degrees of the grinding head can be manually controlled and timely adjusted, accordingly, excessive grinding or insufficient grinding can be prevented, and design requirements on the sizes, geometric tolerance and the surface quality of the taper holes can be met; the grinding tool can be mounted and used conveniently and quickly, and main components of the grinding tool can be replaced, so that finish machining requirements of the same type of taper holes of hydraulic cylinders with different specifications can be met.

Description

A kind of taper hole milling tool

Technical field

The utility model belongs to mechanical equipment technical field, relates to a kind of taper hole milling tool.

Background technology

Fluid cylinder is one of critical component of plunger displacement pump, the inner chamber of fluid cylinder has deep hole, taper hole, major diameter screwed hole, various circular arcs etc., its complex structure, manufacturing procedure many and to process equipment require high, bring many difficult problems to its production and processing, especially the requirement of inner chamber two place's taper hole sizes, form and position tolerance and surface accuracy is all very high, and numerically controlled lathe cannot reach its surface quality requirement, needs special milling tool, after taper hole finish turning, it is carried out to attrition process.

Utility model content

The purpose of this utility model is to provide a kind of taper hole milling tool, has solved the inner-cavity structure complexity of the fluid cylinder existing in prior art, manufacturing procedure many and to process equipment require high, the problem of production and processing inconvenience.

The technical scheme that the utility model adopts is, a kind of taper hole milling tool, comprises grinding head, and grinding head is connected with extension bar one end, and the extension bar other end is hinged by universal joint and taper shank.

Taper hole milling tool of the present utility model, its feature is also:

On the grinding head conical surface, have three place's V-type grooves.

Extension bar adopts 1:50 tapering to be connected with grinding head.

Taper shank one end and universal joint are hinged by taper bolt, and the taper shank other end is connected by No. 6 taperings of Mohs with common driller.

The beneficial effects of the utility model are, 1) realize plunger displacement pump fluid cylinder inner chamber two places with axial cone hole the attrition process on common driller; 2) use this milling tool, low cost of manufacture, and also convenient to use, reduce production cost.The feature of above two aspects, effectively ensureing, under the prerequisite that workpiece size, form and position tolerance and surface accuracy require, effectively to have improved production efficiency, the production cost having reduced largely, and improve the handling capacity of critical process, strengthened this competitiveness of product in market.3) taper hole milling tool adopts the mode transmitting torque of taper fit, in process of lapping, drill press spindle is all the time in relaxation state, by universal joint connecting taper shank and grinding head, the taper hole center and the drill press spindle center out-of-alignment deficiency that in process of lapping, cause because of correct error are made up, it is simple in structure, clamping is easy to use, has improved greatly the machining accuracy of product.

Brief description of the drawings

Fig. 1 is the operation principle schematic diagram of the utility model device;

Fig. 2 is the structural representation of the utility model device;

Fig. 3 is the grinding head 1 side-looking structure chart in the utility model device;

Fig. 4 is the grinding head 1 cross section structure figure in the utility model device;

Fig. 5 is grinding head 1 three-dimensional structure diagram in the utility model device;

Fig. 6 is the extension bar 2 cross section structure figure in the utility model device;

Fig. 7 is the extension bar 2 side-looking structure charts in the utility model device;

Fig. 8 is extension bar 2 three-dimensional structure diagrams in the utility model device;

Fig. 9 is the universal joint 4 cross section structure figure in the utility model device;

Figure 10 is the universal joint 4 plan structure figure in the utility model device;

Figure 11 is taper shank 5 structural front view in the utility model device;

Figure 12 is the taper shank 5 structure top views in the utility model device;

Figure 13 is taper shank 5 structural perspective in the utility model device.

In figure, 1. grinding head, 2. extension bar, 3. taper bolt, 4. universal joint, 5. taper shank.

Detailed description of the invention

Below in conjunction with the drawings and specific embodiments, the utility model is elaborated.

With reference to Fig. 1, Fig. 2, the structure of the utility model taper hole milling tool is, comprises grinding head 1, and grinding head 1 is connected with extension bar 2 one end, and extension bar 2 other ends and universal joint 4 are hinged, and universal joint 4 other ends and taper shank 5 are hinged.

Between extension bar 2 and universal joint 4, universal joint 4 and taper shank 5, all adopt taper bolt 3 to be connected, be convenient to dismounting; Can realize by changing the extension bar of different length the attrition process of different model fluid cylinder taper hole simultaneously.

With reference to Fig. 9, Figure 10, between extension bar 2 and taper shank 5, be connected 1 by universal joint 4) automatically adjust by the angle adaptability of universal joint 4, make up the drill press spindle that causes because of centering process and the concentric error at taper hole center; 2) make in process of lapping the grinding head 1 all the time can the automatic attaching conical surface, grind in improving surface quality and avoided the impact on taper hole form and position tolerance realizing the conical surface; 3) automatically the gap at the place that is respectively connected is eliminated by universal joint 4, efficiently solve the equipment vibration problems causing because of correct error.

With reference to Fig. 3, Fig. 4, Fig. 5, grinding head 1 can be changed according to dissimilar fluid cylinder, grind needs with the taper hole that meets different size, adopt split to be connected with tool body simultaneously, can realize the grinding of concentric two place's taper holes, on grinding head 1 conical surface, have three place's V-type grooves, ensure that in process of lapping, abrasive pastes are evenly distributed, be beneficial to guiding chip removal simultaneously.

With reference to Fig. 6, Fig. 7, Fig. 8, extension bar 2 adopts 1:50 tapering to be connected with grinding head 1, realizes the accurate location of grinding head, transmits operation torque, connection, convenient disassembly by interior four directions.

With reference to Figure 11, Figure 12, Figure 13, taper shank 5 one end and universal joint 4 are hinged by taper bolt 3, taper shank 5 other ends are connected by No. 6 taperings of Mohs with common driller, effectively utilize the intrinsic structure of common driller, can realize tapering self-locking, directly transmitting torque, safe and reliable, and convenient disassembly.

The operation principle of the utility model device is, can realize plunger displacement pump fluid cylinder inner chamber two places with axial cone hole the attrition process on common driller, realize the hand-guided of grinding head 1 crush and adjust in good time, avoid overmastication or ground not enough situation, meet the designing requirement of size, form and position tolerance and the surface quality of taper hole, by the modularized design of tool construction, make milling tool easy to install, quick, by changing critical piece, can meet the fine finishining of the taper hole of the same type of different size fluid cylinder.

Claims

1. a taper hole milling tool, its feature is: comprise grinding head (1), grinding head (1) is connected with extension bar (2) one end, extension bar (2) other end is hinged by universal joint (4) and taper shank (5).

2. taper hole milling tool according to claim 1, its feature is: on described grinding head (1) conical surface, have three place's V-type grooves.

3. taper hole milling tool according to claim 1, its feature is: described extension bar (2) adopts 1:50 tapering to be connected with grinding head (1).

4. taper hole milling tool according to claim 1, its feature is: described taper shank (5) one end and universal joint (4) are hinged by taper bolt (3), and taper shank (5) other end is connected by No. 6 taperings of Mohs with common driller.