CN212239255U

CN212239255U - Disc part drilling circumference hole frock

Info

Publication number: CN212239255U
Application number: CN201922360817.0U
Authority: CN
Inventors: 杨娟; 潘存
Original assignee: Nanjing Donghua Driving Shaft Co ltd
Current assignee: Nanjing Donghua Driving Shaft Co ltd
Priority date: 2019-12-25
Filing date: 2019-12-25
Publication date: 2020-12-29
Anticipated expiration: 2029-12-25

Abstract

The utility model discloses a disc part bores circumference hole frock, including first fixed plate, the top integrated into one piece of first fixed plate has the tapering dabber, and the outer wall spiro union at the top of tapering dabber has first gland nut, and the middle part of tapering dabber is installed the elasticity and is risen the cover, and the outer wall that lies in the bottom tapering dabber of first gland nut installs the clamp plate, and the outer wall cover that lies in the bottom position tapering dabber of clamp plate has the flywheel, the utility model discloses mainly the elasticity rises the cover and moves down under the work piece dead weight, and elasticity rises the cover and combines to rise with tapering dabber conical surface, and the excircle of elasticity rising tight cover contacts the location with the hole of work piece, after eliminating the clearance, uses first gland nut rotation to press from both sides tightly; simultaneously, the scheme has the advantages of simple and convenient operation, detachable tooling, easy replacement of easily damaged parts, reduction of labor intensity of workers and the like, and simultaneously, the processed product has stable quality and high efficiency.

Description

Disc part drilling circumference hole frock

Technical Field

The utility model relates to a disc part's machining field specifically is a disc part bores circumference hole frock.

Background

In the field of automobile part machining, a flywheel on a common engine and a middle shaft gear of an electrically-driven gearbox are disc-type parts, a plurality of holes are formed in the circumference of the disc-type parts and need to be machined, the machining requirement is high, the requirement on the position degree of pin holes is high, and the machining quality of the parts directly influences the quality of parts such as the automobile engine and the gearbox. The traditional common processing method is a processing method which uses two special machine tools to complete two-side processing, middle hole mandrel positioning, drilling, expanding and reaming.

The disadvantages of this method are: 1. the central hole mandrel is adopted for positioning, if the clearance is small, the workpiece is difficult to disassemble, and if the clearance is large, the requirement of the position degree of the processed hole cannot be met; 2. the mandrel is easy to wear, and the whole mandrel needs to be replaced after the mandrel is worn, so that the cost is high, and the replacement time is long; 3. the equipment has poor universality, and once the product is remodeled, the equipment needs to be greatly modified and even cannot be used.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a disc part bores circumference hole frock, through the theory of operation who bores circumference hole frock, the technical problem that solve is, overcomes prior art's shortcoming, provides a disc part bores circumference hole's frock, makes the circumference hole processing of disc part can put processing on the machining center, improves product machining precision, and the clamping is convenient, improves machining efficiency to reduce repair time behind the frock wearing and tearing, reduce cost.

In order to achieve the above object, the utility model provides a following technical scheme: a tool for drilling a circumferential hole in a disc part comprises a first fixing plate, wherein a taper mandrel is integrally formed at the top of the first fixing plate, the first fixing plate is installed at the bottom of the right side of a clamp body through a bolt, the clamp body is provided with a through hole for the taper mandrel to pass through, a first compression nut is screwed on the outer wall of the top of the taper mandrel, an elastic tensioning sleeve is installed on the outer wall of the middle of the taper mandrel, a pressing plate is installed at the bottom of the first compression nut, three clamp supporting blocks are arranged on the periphery of the taper mandrel at equal angles, the clamp supporting blocks are fixed at the top of the clamp body through bolts, a flywheel is placed at the top of the clamp supporting blocks, a circular hole for the taper mandrel to pass through is formed in the middle of the flywheel, and a second fixing plate is installed at the bottom of, the top of the second fixing plate is integrally formed with a mandrel, the fixture body is provided with a through hole through which the mandrel passes, the outer wall of the top of the mandrel is in threaded connection with a second compression nut, an opening pressing plate is mounted at the bottom of the second compression nut, a pressing plate with positioning patterns is mounted at the bottom of the opening pressing plate, three fixture supporting blocks are arranged on the periphery of the mandrel at equal angles, and the flywheel which is turned 180 degrees passes through the mandrel and is placed on the top of the fixture supporting blocks.

Preferably, the left side wall of the press plate with the positioning pattern is provided with a press plate positioning pin, the press plate with the positioning pattern can be positioned, the position needing to be machined can be effectively avoided, and multi-part machining is completed by one-time clamping.

Preferably, the middle part of dabber installs the fixing base, the fixing base is located the top of anchor clamps body, the mistake proofing round pin is installed at the left top of fixing base, the mistake proofing round pin prevents to install the direction mistake and leads to the processing error when the work piece overturns.

Preferably, an elastic sleeve stop dog is installed at the top of the elastic expansion sleeve, and the stop dog can effectively prevent the elastic expansion sleeve from being taken away for a workpiece when the part is disassembled, so that a limiting effect is achieved.

Preferably, the bottom of the clamp body is provided with a groove into which the first fixing plate and the second fixing plate are placed.

Preferably, the left side and the right side of the clamp body are provided with positioning grooves.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses a locating component is connected work piece and frock zero clearance, eliminates the stack error that produces because of positioning gap in the processing, improves hole position degree precision, and the work piece is convenient from top to bottom, and elasticity rises and tightly overlaps business turn over work piece locating hole no retardation phenomenon, reduces workman's intensity of labour and has reduced the processing assistance-time.

2. The utility model discloses a station is organized to the direct upset processing second after first group station has processed, reduces workman's operating procedure and uses.

3. The utility model discloses a take location flower type clamp plate of embedding, the clamping is convenient, avoids the processing hole position.

4. The utility model discloses can adopt the alloy combination to bore during drilling, the chamfer of driling is one step accomplished, reduces the tool changing number of times, improves machining efficiency, makes things convenient for the operative employee to adjust size moreover.

5. The utility model discloses restoration after the frock wearing and tearing only need be changed elasticity and rise the tight cover can, operative employee alright independently accomplish.

6. The utility model discloses when needs processing different kind products, can dismantle the back with the frock and change for other product frocks, greatly improved the commonality of equipment.

Drawings

Fig. 1 is a top view of the tool for drilling circumferential holes on disc parts according to the present invention;

fig. 2 is a schematic structural view of the position of the taper mandrel of the tool for drilling circumferential holes on disc parts according to the present invention;

fig. 3 is a schematic view of the mandrel position structure of the tool for drilling circumferential holes on disc parts according to the present invention;

FIG. 4 is a schematic structural view of a press plate with positioning patterns of the tooling for drilling circumferential holes on disc parts of the present invention;

FIG. 5 is an isometric view of another embodiment.

In the figure: 1. a first fixing plate; 2. a clamp body; 3. an elastic tensioning sleeve; 4. a stopper; 5. a first compression nut; 6. pressing a plate; 7. a taper mandrel; 8. a flywheel; 9. a clamp supporting block; 10. a second fixing plate; 11. a mandrel; 12. an opening pressing plate; 13. a second compression nut; 14. a press plate with positioning patterns; 15. a press plate positioning pin; 16. a mistake proofing pin; 17. positioning a groove; 18. a fixed seat.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The same reference numbers in different drawings identify the same or similar elements; it should be further understood that terms such as "first," "second," "third," "upper," "lower," "front," "rear," "inner," "outer," "end," "portion," "section," "width," "thickness," "zone," and the like, may be used solely for convenience in reference to the figures and to aid in describing the invention, and are not intended to limit the invention.

Referring to fig. 1-4, the present embodiment provides a technical solution:

a tool for drilling a circumferential hole in a disc part comprises a first fixing plate 1, wherein a taper mandrel 7 is integrally formed at the top of the first fixing plate 1, the first fixing plate 1 is installed at the bottom of the right side of a clamp body 2 through a bolt, the clamp body 2 is provided with a through hole for the taper mandrel 7 to pass through, and positioning grooves 17 are formed in the left side and the right side of the clamp body 2;

the outer wall of the top of the taper mandrel 7 is in threaded connection with a first compression nut 5, the middle of the taper mandrel 7 is provided with an elastic tensioning sleeve 3, the top of the elastic tensioning sleeve 3 is provided with an elastic sleeve stop block 4, and the stop block 4 can effectively prevent the elastic tensioning sleeve 3 from taking away a workpiece when the part is disassembled, so that a limiting effect is achieved;

a pressing plate 6 is installed at the bottom of the first compression nut 5, three clamp supporting blocks 9 are arranged on the periphery of the taper mandrel 7 at equal angles, the clamp supporting blocks 9 are fixed to the top of the clamp body 2 through bolts, a flywheel 8 is placed on the top of the clamp supporting blocks 9, a round hole for the taper mandrel 7 to penetrate through is formed in the middle of the flywheel 8, a second fixing plate 10 is installed at the bottom of the left side of the clamp body 2 through bolts, and grooves for placing the first fixing plate 1 and the second fixing plate 10 are formed in the bottom of the clamp body 2;

a mandrel 11 is integrally formed at the top of the second fixing plate 10, a through hole for the mandrel 11 to pass through is formed in the fixture body 2, a fixed seat 18 is installed in the middle of the mandrel 11, the fixed seat 18 is located at the top of the fixture body 2, a mistake-proofing pin 16 is installed at the top of the left side of the fixed seat 18, and the mistake-proofing pin 16 prevents a processing mistake caused by a wrong installation direction when a workpiece is overturned;

a second compression nut 13 is screwed on the outer wall of the top of the mandrel 11, an opening pressing plate 12 is installed at the bottom of the second compression nut 13, a pressing plate with positioning patterns 14 is installed at the bottom of the opening pressing plate 12, a pressing plate positioning pin 15 is arranged on the left side wall of the pressing plate with positioning patterns 14, the pressing plate with positioning patterns 14 can be positioned and can effectively avoid positions needing to be machined, and multi-part machining is completed by one-time clamping;

three clamp supporting blocks 9 are arranged on the periphery of the mandrel 11 at equal angles, and the flywheel 8 turned by 180 degrees penetrates through the mandrel 11 and is placed on the top of the clamp supporting blocks 9.

The working principle is as follows: the first group of positioning assemblies consists of a taper mandrel 7, an elastic tensioning sleeve 3 and a stop block 4, when the positioning assemblies are clamped, the elastic tensioning sleeve 3 moves downwards under the dead weight of a workpiece, the elastic tensioning sleeve 3 is combined with the conical surface of the taper mandrel 7 to be expanded, the outer circle of the elastic tensioning sleeve 3 is in contact with the inner hole of the workpiece for positioning, after a gap is eliminated, the elastic tensioning sleeve is rotated and clamped by a first compression nut 5, one surface is machined, and the other surface is directly turned on a workbench to reduce the secondary carrying of the workpiece; the second group is positioned by a mandrel 11 and a pressure plate 14 with a positioning pattern, when clamping, a workpiece is sleeved in the mandrel 11, the pressure plate 14 with the positioning pattern is embedded, and the excircle of the pressure plate 14 with the positioning pattern is in contact positioning with the inner wall of the workpiece.

This embodiment is shown in fig. 5, and differs from the above embodiments in that one fixture body is provided with one station.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a disc part bores circumference hole frock, includes first fixed plate (1), its characterized in that: the clamp comprises a clamp body (2), a taper mandrel (7) is integrally formed at the top of the first fixing plate (1), the first fixing plate (1) is installed at the bottom of the right side of the clamp body (2) through bolts, a through hole for the taper mandrel (7) to pass through is formed in the clamp body (2), a first compression nut (5) is screwed on the outer wall of the top of the taper mandrel (7), an elastic tensioning sleeve (3) is installed on the outer wall of the middle of the taper mandrel (7), a pressing plate (6) is installed at the bottom of the first compression nut (5), three clamp supporting blocks (9) are arranged on the periphery of the taper mandrel (7) at equal angles, the clamp supporting blocks (9) are fixed at the top of the clamp body (2) through bolts, a flywheel (8) is placed at the top of the clamp supporting blocks (9), and a round hole for the taper mandrel (7) to pass through is formed in the middle, the clamp is characterized in that a second fixing plate (10) is installed at the bottom of the left side of the clamp body (2) through a bolt, a mandrel (11) is integrally formed at the top of the second fixing plate (10), a through hole for the mandrel (11) to pass through is formed in the clamp body (2), a second compression nut (13) is screwed on the outer wall of the top of the mandrel (11), an opening pressing plate (12) is installed at the bottom of the second compression nut (13), a flower-shaped pressing plate (14) with a positioning function is installed at the bottom of the opening pressing plate (12), the periphery of the mandrel (11) is provided with three clamp supporting blocks (9) at equal angles, and the flywheel (8) after being turned over for 180 degrees passes through the mandrel (11) and is placed at the top of the clamp supporting blocks (9.

2. The tool for drilling the circumferential hole on the disc part according to claim 1, wherein the tool comprises: and a press plate positioning pin (15) is arranged on the left side wall of the press plate (14) with the positioning pattern.

3. The tool for drilling the circumferential hole on the disc part according to claim 1, wherein the tool comprises: the middle part of dabber (11) installs fixing base (18), fixing base (18) are located the top of anchor clamps body (2), mistake proofing round pin (16) are installed at the left top of fixing base (18).

4. The tool for drilling the circumferential hole on the disc part according to claim 1, wherein the tool comprises: and an elastic sleeve stop block (4) is arranged at the top of the elastic tensioning sleeve (3).

5. The tool for drilling the circumferential hole on the disc part according to claim 1, wherein the tool comprises: the bottom of the clamp body (2) is provided with a groove for placing the first fixing plate (1) and the second fixing plate (10).

6. The tool for drilling the circumferential hole on the disc part according to claim 1, wherein the tool comprises: the left side and the right side of the clamp body (2) are provided with positioning grooves (17).