An eccentric tool for boring a special-shaped part

Abstract

The application discloses eccentric tooling for boring processing of special-shaped parts and belongs to the technical field of tooling, which comprises a machine tool spindle flange, a first tooling assembly, a second tooling assembly, a third tooling assembly and a disc cock valve processing piece, the machine tool spindle flange is internally provided with a first connecting hole, the first tooling assembly is internally provided with a second connecting hole and a third connecting hole, the first tooling assembly bottom is slidably connected with the second tooling assembly and the third tooling assembly, the third tooling assembly bottom is rotatably connected with a rotating block, the disc cock valve processing piece is connected with the rotating block through connecting bolts, the first tooling assembly is internally provided with a pressing assembly and a positioning assembly, and the first tooling assembly top end is connected with a counterweight. The application is mainly applied to the fixation of the disc cock valve assembly, is convenient to disassemble and assemble, can play a good positioning role, is convenient to adjust and has many practicabilities.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of tooling, in particular to an eccentric tooling for boring of a special-shaped part. BACKGROUND

[0002] The disc plug valve assembly is used as a valve part for rail transit, and before the successful development of this project, all such valves in China were imported from abroad (Japan), which had high cost, long cycle, and delayed after-sales service, and seriously affected the development of China's rail transit industry. In response to the requirement of the state to increase the localization rate of rail transit projects, the valve part is developed.

[0003] The disc plug valve assembly is a special-shaped part, so the clamping method for boring is more difficult than that of a rotary part. A special tooling needs to be designed to ensure that the bored hole is concentric with the spindle of the machine tool, and the position and size requirements of the processed hole and the reference plane of the part also need to be ensured. After the technical staff simulates the operation by three-dimensional simulation and with the assistance of the machine operator, an eccentric tooling for boring of a special-shaped part is designed to meet the processing requirements. SUMMARY

[0004] In view of the deficiencies of the prior art, the present application provides an eccentric tooling for boring of a special-shaped part, which overcomes the deficiencies of the prior art and aims to solve the problems in the background art.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical scheme: an eccentric tooling for boring of a special-shaped part, comprising a machine tool spindle flange, a first tooling assembly, a second tooling assembly, a third tooling assembly, and a disc plug valve processing part, wherein the machine tool spindle flange is provided with a first connecting hole, the first tooling assembly is provided with a second connecting hole and a third connecting hole, the bottom of the first tooling assembly is slidably connected with the second tooling assembly and the third tooling assembly, the bottom of the third tooling assembly is rotatably connected with a rotating block, and the disc plug valve processing part is connected with the rotating block through connecting bolts, the first tooling assembly is provided with a pressing assembly and a positioning assembly, and a counterweight is connected and installed at the top end of the first tooling assembly.

[0006] As a preferred technical scheme of the present application, the machine tool spindle flange and the first tooling assembly are connected through the third connecting hole, and the machine tool spindle flange is connected with the eccentric device through the first connecting hole. The position of the second connecting hole is opposite to that of the first connecting hole, so that the tooling and the eccentric device can be connected through the second connecting hole and the first connecting hole, thereby increasing the stability.

[0007] As a preferred technical scheme of the present application, the second tooling assembly and the third tooling assembly are designed in a convex structure, which can limit the first tooling assembly and facilitate positioning, and the second tooling assembly and the third tooling assembly are connected with the first tooling assembly by means of threaded holes formed at the bottom of the second tooling assembly and the third tooling assembly, the first tooling assembly has two, the second tooling assembly and the third tooling assembly are fixedly installed with L-shaped sliding rails at the top, and the first tooling assembly is provided with L-shaped sliding grooves at the bottom, which are adapted to the L-shaped sliding rails, and can play a guiding role while playing a stabilizing role, avoiding tilting during connection and affecting the installation effect.

[0008] As a preferred technical scheme of the present application, the rotating block is connected with a rotating piece, and the connecting bolt is designed in a T-shaped structure, the lower segment of the connecting bolt is designed in a threaded structure and is connected with the rotating block through threads, and the disc cock valve workpiece is provided with a through hole adapted to the upper segment of the connecting bolt, the disc cock valve workpiece is fixed by means of the connecting bolt, and the connecting and fixing work can be completed by rotating the rotating block, which facilitates disassembly and replacement of the disc cock valve workpiece.

[0009] As a preferred technical scheme of the present application, the first tooling assembly is provided with machining holes at both sides, which can machine the disc cock valve workpiece from the bottom.

[0010] As a preferred technical scheme of the present application, the pressing assembly and the connecting frame are the main body and are connected with the first tooling assembly through screws, the connecting frame is fixedly installed with a guide rod, one end of the guide rod is slidably connected with a pressing block, one end of the pressing block is designed in an inclined manner, the guide rod and the pressing block are connected with a first spring, and the first spring is sleeved outside the guide rod, the pressing block can always be in contact with the outside of the disc cock valve workpiece by means of the elastic force of the first spring, thereby playing a clamping role, and the structure design of the pressing block can facilitate insertion of the disc cock valve workpiece into the tooling, and the pressing assembly can also be disassembled, thereby facilitating cleaning and maintenance work.

[0011] As a preferred technical scheme of the present application, the positioning assembly is composed of a second spring, an expansion block, a positioning column, a pressing rod and an extrusion block, the second spring is arranged in the first tooling assembly, one end of the second spring is connected with the expansion block, one end of the expansion block is fixedly provided with the positioning column, the positioning column is designed in a semicircular structure, the pressing rod is slidably connected with the first tooling assembly, the sliding direction is perpendicular to the expansion block, one end of the pressing rod is fixedly provided with the extrusion block, the extrusion block is designed in a triangular structure, and a groove matched with the extrusion block is formed in the outer side of the expansion block, the positioning column is extended out by the elastic force of the second spring, thereby playing a positioning role, the disc cock valve workpiece and the third tooling assembly are conveniently connected by the connecting bolt, the structure design of the positioning column can play a positioning role without affecting the in-out of the disc cock valve workpiece, and the design of the extrusion block can control the positioning column to be retracted into the first tooling assembly, thereby conveniently taking out the disc cock valve workpiece for replacement.

[0012] As a preferred technical scheme of the present application, the counterweight block is slidably connected with the top end of the first tooling assembly, a T-shaped sliding block is fixedly arranged at the bottom of the counterweight block, and a T-shaped sliding groove matched with the T-shaped sliding block is formed in the top end of the first tooling assembly, thereby playing a guiding and positioning role, and the counterweight block is connected with the first tooling assembly through the fourth connecting hole, thereby conveniently disassembling the counterweight block and replacing the counterweight block with different weights, so as to change the eccentricity and be suitable for different machining work.

[0013] The present application has the following beneficial effects:

[0014] The first tooling assembly, the second tooling assembly, the third tooling assembly and the counterweight block are arranged, and a machining groove is formed, so that the disc cock valve workpiece can be machined from five directions of the top end, the bottom, the front end and the two sides, the machining range is large, and the present application is suitable for different types of eccentric machining.

[0015] The disc cock valve workpiece can be pressed and positioned by the pressing assembly and the positioning assembly while being placed, thereby conveniently completing the connection work and greatly improving the stability.

[0016] By configuring the counterweight block with different weights, the eccentricity during machining can be adjusted according to the needs, so as to meet different needs. DETAILED DESCRIPTION

[0017] Figure 1 The present application is a 3D structure schematic view;

[0018] Figure 2 The present application is a front view;

[0019] Figure 3 The present application is a side view;

[0020] Figure 4This is a top view of the present invention;

[0021] Figure 5 This is a schematic diagram of the clamping assembly in this invention;

[0022] Figure 6 This is a schematic diagram of the positioning component in this invention.

[0023] In the diagram: 1. Machine tool spindle flange; 2. First tooling assembly; 3. Second tooling assembly; 4. Third tooling assembly; 5. Machining part of disc plug valve; 6. First connecting hole; 7. Second connecting hole; 8. Third connecting hole; 9. Rotary block; 10. Connecting bolt;

[0024] 11. Clamping assembly; 1101. Connecting frame; 1102. Guide rod; 1103. Clamping block; 1104. First spring;

[0025] 12. Positioning component; 1201. Second spring; 1202. Telescopic block; 1203. Positioning post; 1204. Pressing rod; 1205. Pressing block.

[0026] 13. Counterweight; 14. Fourth connecting hole. Implementation

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Example

[0028] Please see Figure 1 - Figure 6The utility model provides an eccentric tooling for special-shaped part boring machining, including lathe spindle flange 1, first tooling assembly 2, second tooling assembly 3, third tooling assembly 4 and disc cock valve processing piece 5, and first tooling assembly 2 both sides are equipped with processing hole, can be from bottom to disc cock valve processing piece 5 and process, second tooling assembly 3 and third tooling assembly 4 all adopt convex structure design, can play the limiting effect to first tooling assembly 2, convenient positioning, by the threaded hole of second tooling assembly 3 and third tooling assembly 4 bottom, to second tooling assembly 3 and third tooling assembly 4 with first tooling assembly 2 are connected, first tooling assembly 2 has two, second tooling assembly 3 and third tooling assembly 4 top fixedly installed have L type slide rail, and first tooling assembly 2 bottom is equipped with with L type slide groove of adapting of L type slide rail, play the guiding effect simultaneously, also can play the stabilizing effect, avoid the inclination in the connecting process, influence installation effect, lathe spindle flange 1 is equipped with first connecting hole 6 in, and first tooling assembly 2 is equipped with second connecting hole 7 and third connecting hole 8 in, lathe spindle flange 1 and first tooling assembly 2 are connected through third connecting hole 8, and lathe spindle flange 1 is connected with eccentric device through first connecting hole 6, the position of second connecting hole 7 is opposite first connecting hole 6, can be connected with eccentric device through second connecting hole 7 and first connecting hole 6 with tooling, increase stability, first tooling assembly 2 bottom and second tooling assembly 3 and third tooling assembly 4 sliding connection, third tooling assembly 4 bottom rotatablely connected with swivel block 9, and disc cock valve processing piece 5 is connected with swivel block 9 through connecting bolt 10, and swivel block 9 outside is connected with rotary piece, and connecting bolt 10 adopts T type structure design, and connecting bolt 10 lower segment adopts screw structure design, and is connected with swivel block 9 through screw thread, and disc cock valve processing piece 5 is equipped with with connecting bolt 10 upper segment adaptation through -hole, and disc cock valve processing piece 5 is fixed through connecting bolt 10, and can be connected and fixed work through rotating swivel block 9, and disc cock valve processing piece 5 is convenient to dismount and replace, and first tooling assembly 2 is equipped with pressure assembly 11 and positioning assembly 12 in, and first tooling assembly 2 top is connected and installed with counterweight 13, and positioning assembly 12 is composed of second spring 1201, telescopic block 1202, positioning column 1203, pressing rod 1204 and extrusion block 1205, and second spring 1201 is arranged in first tooling assembly 2, and one end of second spring 1201 is connected and installed with telescopic block 1202, and one end of telescopic block 1202 is fixedly installed with positioning column 1203, and positioning column 1203 adopts semicircular structure design, and pressing rod 1204 is slidingly connected with first tooling assembly 2, and the sliding direction is perpendicular to telescopic block 1202, and one end of pressing rod 1204 is fixedly installed with extrusion block 1205, and extrusion block 1205 adopts triangular structure design, and the recess of telescopic block 1202 outside is equipped with with extrusion block 1205 adaptation, and positioning column 1203 is stretched out through the elastic force of second spring 1201, plays the role of positioning,The disc cock valve workpiece 5 and the third tool assembly 4 are connected by conveniently using the connecting bolt 10, the structure design of the positioning column 1203 can play a positioning effect and will not affect the entry and exit of the disc cock valve workpiece 5, the design of the extrusion block 1205 can control the positioning column 1203 to be received in the first tool assembly 2, the disc cock valve workpiece 5 is conveniently taken out and replaced, the counterweight 13 is slidingly connected to the top end of the first tool assembly 2, the bottom of the counterweight 13 is fixedly provided with a T-shaped sliding block, and the top end of the first tool assembly 2 is provided with a T-shaped sliding groove matched with the T-shaped sliding block, so that the guiding and positioning effects are achieved, the counterweight 13 is connected with the first tool assembly 2 through the fourth connecting hole 14, the counterweight 13 is conveniently disassembled and replaced by the counterweight 13 with different weights, so that the eccentricity is changed, and the tool is suitable for different machining work.

[0029] Working principle: when installing, the machine tool spindle flange 1 needs to be installed on the rotating position of the eccentric device through the first connecting hole 6, then the tool is assembled, the bottom of the first tool assembly 2 is connected with the second tool assembly 3 and the third tool assembly 4, the disc cock valve workpiece 5 is placed on the top end of the second tool assembly 3 and the third tool assembly 4 and is between the first tool assembly 2, the disc cock valve workpiece 5 is connected with the positioning column 1203, the pressing rod 1204 is retracted and the positioning column 1203 is always tightly attached to the outside of the disc cock valve workpiece 5 by the elastic force, the disc cock valve workpiece 5 is clamped by the pressure, the positioning column 1203 is extended and is connected with one side of the disc cock valve workpiece 5 by the elastic force of the second spring 1201, then the connecting bolt 10 is inserted into the through hole of the disc cock valve workpiece 5 and is connected with the rotating block 9, the rotating block 9 is rotated to fix the connecting bolt 10, the corresponding counterweight 13 is connected to the top end of the positioning assembly 12 and is connected through the fourth connecting hole 14 according to the need, finally the tool is connected with the machine tool spindle flange 1 through the third connecting hole 8, or the tool is connected with the rotating surface of the eccentric device through the first connecting hole 6 and the second connecting hole 7, and the machining work can be performed.

[0030] The above is only the preferred embodiment of the present application and is not used to limit the present application, although the present application is described in detail with reference to the foregoing embodiment, the technical solutions recorded in the foregoing embodiments can be modified or some technical features can be replaced by equivalents for those skilled in the art. Any modification, equivalent replacement, improvement and the like within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An eccentric tooling for boring irregularly shaped parts, comprising a machine tool spindle flange (1), a first tooling assembly (2), a second tooling assembly (3), a third tooling assembly (4), and a disc valve machining component (5), characterized in that, The machine tool spindle flange (1) has a first connecting hole (6) inside, the first tooling assembly (2) has a second connecting hole (7) and a third connecting hole (8) inside, the bottom of the first tooling assembly (2) is slidably connected to the second tooling assembly (3) and the third tooling assembly (4), the bottom of the third tooling assembly (4) is rotatably connected to a rotating block (9), and the disc plug valve processing part (5) is connected to the rotating block (9) by a connecting bolt (10). The first tooling assembly (2) has a clamping assembly (11) and a positioning assembly (12) inside, and a counterweight block (13) is connected and installed at the top of the first tooling assembly (2). The clamping assembly (11) and the connecting frame (1101) are the main body and are connected to the first tooling assembly (2) by screws. A guide rod (1102) is fixedly installed inside the connecting frame (1101), and a pressure block (1103) is slidably connected to one end of the guide rod (1102). The positioning component (12) consists of a second spring (1201), a telescopic block (1202), a positioning post (1203), a pressing rod (1204), and a squeezing block (1205). The second spring (1201) is located inside the first tooling component (2), and one end of the second spring (1201) is connected to and installed with the telescopic block (1202). One end of the telescopic block (1202) is fixedly installed with the positioning post (1203), and one end of the pressing rod (1204) is fixedly installed with the squeezing block (1205).

2. The eccentric tooling for boring irregularly shaped parts according to claim 1, characterized in that, The machine tool spindle flange (1) and the first tooling assembly (2) are connected through the third connecting hole (8), and the machine tool spindle flange (1) is connected to the eccentric device through the first connecting hole (6). The position of the second connecting hole (7) is opposite to the first connecting hole (6).

3. The eccentric tooling for boring irregularly shaped parts according to claim 1, characterized in that, The second tooling assembly (3) and the third tooling assembly (4) both adopt a convex structure design. There are two first tooling assemblies (2). The top of the second tooling assembly (3) and the third tooling assembly (4) are fixedly installed with L-shaped slide rails, and the bottom of the first tooling assembly (2) is provided with an L-shaped slide groove that matches the L-shaped slide rail.

4. The eccentric tooling for boring irregularly shaped parts according to claim 1, characterized in that, The rotating block (9) is connected to a rotating plate on the outside, and the connecting bolt (10) adopts a T-shaped structure design. The lower section of the connecting bolt (10) adopts a threaded structure design and is connected to the rotating block (9) by threads. The disc plug valve processing part (5) has a through hole that matches the upper section of the connecting bolt (10).

5. The eccentric tooling for boring irregularly shaped parts according to claim 1, characterized in that, The first tooling assembly (2) has machining holes on both sides.

6. The eccentric tooling for boring irregularly shaped parts according to claim 1, characterized in that, One end of the pressure block (1103) is designed to be inclined. A first spring (1104) is connected between the guide rod (1102) and the pressure block (1103), and the first spring (1104) is sleeved on the outside of the guide rod (1102).

7. The eccentric tooling for boring irregularly shaped parts according to claim 1, characterized in that, The positioning post (1203) adopts a semi-circular structure design. The pressing rod (1204) is slidably connected to the first tooling assembly (2), and the sliding direction is perpendicular to the telescopic block (1202). The extrusion block (1205) adopts a triangular structure design, and the telescopic block (1202) has a groove on the outside that is adapted to the extrusion block (1205).

8. The eccentric tooling for boring irregularly shaped parts according to claim 1, characterized in that, The counterweight (13) is slidably connected to the top of the first tooling assembly (2). A T-shaped slider is fixedly installed at the bottom of the counterweight (13), and a T-shaped groove adapted to it is opened at the top of the first tooling assembly (2). The counterweight (13) and the first tooling assembly (2) are connected through the fourth connecting hole (14).

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