CN212918497U

CN212918497U - Crankshaft tail groove machining and positioning tool

Info

Publication number: CN212918497U
Application number: CN202021335850.4U
Authority: CN
Inventors: 蒋永兴; 欧阳代云; 皮文波
Original assignee: Anhui Yangshan United Precision Technology Co ltd
Current assignee: Anhui Yangshan United Precision Technology Co ltd
Priority date: 2020-07-09
Filing date: 2020-07-09
Publication date: 2021-04-09
Anticipated expiration: 2030-07-09

Abstract

The utility model discloses a crankshaft tail groove processing and positioning tool, belonging to the crankshaft processing field, wherein a crankshaft fixing seat is sequentially provided with an insertion hole and a fixing groove, one side wall of the insertion hole is provided with a positioning column, and the other side wall is provided with an avoiding groove; the automatic edge finding and positioning of the cam on the crankshaft can be realized by the contact of the pressing wheel and the side surface of the crankshaft cam in the downward moving process under the driving of the cylinder until the cam is tightly supported on the end surface of the positioning column.

Description

Crankshaft tail groove machining and positioning tool

Technical Field

The utility model relates to a bent axle processing technology field, more specifically say, relate to a bent axle tail groove processing location frock.

Background

The crankshaft of the air-conditioning compressor is an important part in the compressor, the positioning of the reference surface of the eccentric cam on the crankshaft is realized by manually clamping the tail groove at the tail part of the crankshaft during the processing at present, and then the tail groove processing is carried out on the tail part of the crankshaft. This kind of processing mode through manual location's bent axle tail groove not only influences the machining efficiency of bent axle tail groove, and this location quality is poor moreover, and this manual location's frock structure is complicated simultaneously.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved by the utility model

An object of the utility model is to overcome not enough among the prior art, provide a bent axle tail groove processing location frock, through moving down pinch roller and the contact of bent axle cam side in-process among this technical scheme, just can realize the automatic limit location of seeking of cam on the bent axle, and then can confirm the position that needs the processing tail groove on the bent axle, this in-process does not need the people to fix a position, and should fix a position frock location accuracy, efficient.

Technical scheme

In order to achieve the above purpose, the utility model provides a technical scheme does:

the utility model discloses a crankshaft tail groove processing location frock, including bottom plate and the bent axle fixing base that sets up on the bottom plate and be the cuboid structure, be equipped with the inserted hole that is the rectangle and the fixed slot with bent axle clearance fit on the bent axle fixing base and along its length direction in proper order, the afterbody of bent axle stretches out in the fixed slot, and its upper cam pastes on the ladder surface of fixed slot and inserted hole, be equipped with the reference column to the cam side on the bent axle on one side wall of inserted hole, be equipped with the groove of dodging of arranging along the inserted hole direction of height on its other side wall;

the upper end face of the crankshaft fixing seat is provided with an air cylinder support and an oil cylinder support, the oil cylinder support is provided with an oil cylinder, a piston rod of the oil cylinder is vertically downward, the tail part of the piston rod is provided with a pressure head, and the pressure head can tightly abut against the side face of the crankshaft after penetrating through a second through hole in the crankshaft fixing seat; be equipped with the cylinder on the cylinder support, the piston rod of cylinder gets into after passing the first via hole on cylinder support, the bent axle fixing base in proper order down and dodges in the groove, the afterbody of cylinder piston rod is equipped with two and is parallel to each other, and vertical decurrent support arm, and the side that is provided with pinch roller and this pinch roller through the fixed axle rotation between these two support arms stretches out in dodging the groove, and when the bent axle location, the cylinder drives the pinch roller and moves down, moves down in-process pinch roller and bent axle cam side contact to make the bent axle rotate along its central axis until the cam tightly supports at reference column terminal surface.

As a further improvement, the pressing head is provided with a pressing groove matched with the side surface of the crankshaft.

As a further improvement, one side of the crankshaft fixing seat is provided with a tail fixing seat for supporting the tail of the crankshaft, the tail fixing seat is provided with a limiting groove for limiting the crankshaft and having a V-shaped structure, and the bottom of the limiting groove having the V-shaped structure is provided with an arc surface attached to the side of the crankshaft.

As a further improvement, the pressure head is including the pressure head body that is the cuboid structure, the both ends of the lower terminal surface of pressure head body downwardly extending respectively are provided with preceding pressure head, back pressure head, wherein, can tightly support on the bent axle side after preceding pressure head passes the second via hole, back pressure head can tightly support on the bent axle side on the afterbody fixing base, all be equipped with the groove that compresses tightly of laminating mutually with the bent axle side on preceding pressure head, the back pressure head.

As a further improvement, the positioning column is arranged on the crankshaft fixing seat through a thread structure.

Advantageous effects

Adopt the technical scheme provided by the utility model, compare with prior art, have following beneficial effect:

(1) the utility model discloses a crankshaft tail groove processing location frock, wherein, through moving down pinch roller and the contact of bent axle cam side in-process, just can realize the automatic limit location of seeking of bent axle cam, what need explain is: the position relation of setting up the position of tail groove on the bent axle and cam on the bent axle is certain, and this moment through the automatic limit location back of seeking of cam on the bent axle, and the position that the afterbody corresponds the cutter on the bent axle this moment is exactly the position that needs processing the tail groove on the bent axle, and this in-process does not need the manual work to fix a position, and the location is accurate, and is efficient, and pinch roller pivoted sets up on the fixed axle simultaneously, and then has reduced the pinch roller and has promoted the wearing and tearing of bent axle rotation in-process.

(2) The utility model discloses a crankshaft tail groove processing location frock, wherein, when carrying out the tail groove of crankshaft afterbody with man-hour, arrange its whole on bent axle fixing base, afterbody fixing base in, and compress tightly the bent axle jointly through preceding pressure head, back pressure head, improved the positional stability of bent axle, strengthened the whole rigidity of its processing, and then ensured the processingquality of tail groove.

(3) The utility model discloses a crankshaft tail groove processing location frock, structural design is reasonable, and the principle is simple, convenient to popularize and use.

Drawings

Fig. 1 is a schematic structural view of a crankshaft tail groove machining and positioning tool of the present invention;

fig. 2 is a schematic structural view of a front side of a crankshaft tail groove machining and positioning tool in the present invention;

fig. 3 is a schematic view of a back structure of a crankshaft tail groove machining and positioning tool of the present invention;

FIG. 4 is a schematic structural view of the crankshaft fixing base of the present invention;

FIG. 5 is a schematic structural view of the cylinder head according to the present invention;

FIG. 6 is a schematic structural view of a pressing block of the present invention;

FIG. 7 is a schematic structural view of a crankshaft of the present invention;

fig. 8 is the utility model discloses a cooperation state picture of crankshaft tail groove processing location frock and bent axle.

The reference numerals in the schematic drawings illustrate:

01. a base plate; 02. a crankshaft;

03. a crankshaft fixing seat; 031. an insertion opening; 032. an avoidance groove; 033. fixing grooves; 034. a first via hole; 035. a second via hole;

04. a positioning column;

05. a cylinder; 052. A support arm; 053. a fixed shaft; 054. a pinch roller;

06. an oil cylinder; 061. a pressure head; 0611. a front pressure head; 0612. a rear pressure head; 0613; a compaction groove;

07. a cylinder support; 08. a cylinder support;

09. a tail fixing seat; 091. a limiting groove.

Detailed Description

For a further understanding of the present invention, reference will be made to the following detailed description taken in conjunction with the accompanying drawings and examples.

Example 1

As shown in fig. 1, 2, 3, 4, 5, 6, 7, and 8, the crankshaft tail groove processing and positioning tool of the present embodiment includes a bottom plate 01 and a crankshaft fixing seat 03 disposed on the bottom plate 01 and having a rectangular structure, an insertion hole 031 and a fixing groove 033 in clearance fit with the crankshaft 02 are sequentially disposed on the crankshaft fixing seat 03 along a length direction of the crankshaft fixing seat, a tail portion of the crankshaft 02 extends out of the fixing groove 033, a cam thereon is attached to a step surface between the fixing groove 033 and the insertion hole 031, a positioning column 04 facing a side surface of the cam on the crankshaft 02 is disposed on one side wall of the insertion hole 031, specifically, the positioning column 04 of the present embodiment is disposed on the crankshaft fixing seat 03 through a thread structure, and an avoidance groove 032 disposed along a height direction of the insertion hole 031 is disposed on the other side wall of the positioning column 04.

In this embodiment, a tail fixing seat 09 for supporting the tail of the crankshaft 02 is further disposed on one side of the crankshaft fixing seat 03, a V-shaped limiting groove 091 for limiting the crankshaft 02 is disposed on the tail fixing seat 09, an arc surface attached to the side surface of the crankshaft 02 is disposed at the bottom of the V-shaped limiting groove 091, an air cylinder support 07 and an oil cylinder support 08 are disposed on the upper end surface of the crankshaft fixing seat 03, an oil cylinder 06 is disposed on the oil cylinder support 08, a piston rod of the oil cylinder 06 is vertically downward, and a pressure head 061 is disposed at the tail of the piston rod, and the pressure head 061 can be tightly abutted to the side surface of the crankshaft 02 after passing through a second through hole.

Specifically be equipped with on the pressure head 061 of this embodiment and compress tightly groove 0613 with bent axle 02 side matched with, this pressure head 061 is including the pressure head body that is the cuboid structure, the both ends of the lower terminal surface of pressure head body downwardly extending respectively are provided with preceding pressure head 0611, back pressure head 0612, wherein, preceding pressure head 0611 can tightly support on bent axle 02 side after passing second via hole 035, back pressure head 0612 can tightly support on the bent axle 02 side on afterbody fixing base 09, preceding pressure head 0611, all be equipped with on the back pressure head 0612 and compress tightly groove 0613 with bent axle 02 side laminating mutually.

It should be explained that: in this embodiment, when the tail groove at the tail of the crankshaft 02 is machined, the whole crankshaft is arranged on the crankshaft fixing seat and the tail fixing seat 09, and the crankshaft 02 is compressed together by the front pressure head 0611 and the rear pressure head 0612, so that the positioning stability of the crankshaft 02 is improved, the overall machining rigidity is enhanced, and the machining quality of the tail groove is further ensured.

The cylinder 05 is arranged on the cylinder support 07, a piston rod of the cylinder 05 vertically and downwards sequentially penetrates through the cylinder support 07 and a first through hole 034 in the crankshaft fixing seat 03 and then enters the avoiding groove 032, two parallel vertical and downward support arms 052 are arranged at the tail part of the piston rod of the cylinder 05, a press wheel 054 is rotatably arranged between the two support arms 052 through a fixing shaft 053, the side surface of the press wheel 054 extends out of the avoiding groove 032, when the crankshaft 02 is positioned, the cylinder 05 drives the press wheel 054 to move downwards, and the press wheel 054 is in contact with the side surface of a cam of the crankshaft 02 in the downward moving process, so that the crankshaft 02 rotates along the central axis thereof until the cam tightly abuts against the end surface of the positioning column 04.

When the crankshaft 02 is used, firstly, the crankshaft 02 is manually inserted into the fixing groove 033 through the insertion opening 031, the crankshaft 02 cam is made to be attached to the step surface of the fixing groove 033 and the insertion opening 031, then the air cylinder 05 is started, the piston rod of the air cylinder 05 extends out to drive the pressing wheel 054 on the air cylinder to move downwards, the pressing wheel 054 is in contact with the side surface of the crankshaft 02 cam in the downward moving process, so that the crankshaft 02 rotates along the central axis of the crankshaft 02 until the cam is tightly abutted to the end surface of the positioning column 04, so that the automatic edge finding and positioning of the cam on the crankshaft 02 are realized, then the oil cylinder 06 is started, the piston rod of the oil cylinder 06 extends out to drive the pressing head 061 on the oil cylinder to move downwards, finally, the pressing head 061 is tightly abutted to the side surface of the crankshaft 02, finally, the tail groove processing at the tail part of the crankshaft 02 is carried out, and.

In this embodiment, the pressing wheel 054 in the downward moving process contacts with the side surface of the cam of the crankshaft 02, so that the cam on the crankshaft 02 can be automatically positioned by finding the edge, which needs to be described as follows: the position relation of the tail groove on the crankshaft 02 and the cam on the crankshaft 02 is certain in the embodiment, after the position is located through automatic edge finding of the cam on the crankshaft 02, the position of the tail part on the crankshaft 02 corresponding to the cutter is the position of the tail groove on the crankshaft 02 to be machined, manual locating is not needed in the process, locating is accurate, efficiency is high, meanwhile, the pressing wheel 054 is arranged on the fixed shaft 053 in a rotating mode, and abrasion of the pressing wheel 054 in the process of pushing the crankshaft 02 to rotate is reduced.

The present invention and its embodiments have been described above schematically, and the description is not limited thereto, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching of the present invention, without departing from the inventive spirit of the present invention, the person skilled in the art should also design the similar structural modes and embodiments without creativity to the technical solution, and all shall fall within the protection scope of the present invention.

Claims

1. The utility model provides a bent axle tail groove processing location frock, includes bottom plate (01) and sets up bent axle fixing base (03) on bottom plate (01) and be the cuboid structure, its characterized in that: the crankshaft fixing seat (03) is sequentially provided with a rectangular insertion opening (031) and a fixing groove (033) in clearance fit with the crankshaft (02) along the length direction of the crankshaft fixing seat, the tail of the crankshaft (02) extends out of the fixing groove (033), a cam on the crankshaft (02) is attached to the stepped surface of the fixing groove (033) and the insertion opening (031), a positioning column (04) which is right opposite to the side surface of the cam on the crankshaft (02) is arranged on one side wall of the insertion opening (031), and an avoiding groove (032) which is arranged along the height direction of the insertion opening (031) is arranged on the other side wall of the insertion opening (031;

an air cylinder support (07) and an oil cylinder support (08) are arranged on the upper end face of the crankshaft fixing seat (03), an oil cylinder (06) is arranged on the oil cylinder support (08), a piston rod of the oil cylinder (06) is vertically downward, a pressure head (061) is arranged at the tail of the piston rod, and the pressure head (061) can tightly abut against the side face of the crankshaft (02) after penetrating through a second through hole (035) in the crankshaft fixing seat (03); be equipped with cylinder (05) on cylinder support (07), the piston rod of cylinder (05) is vertical to passing cylinder support (07), entering behind the first via hole (034) on bent axle fixing base (03) in proper order and dodge groove (032), the afterbody of cylinder (05) piston rod is equipped with two and is parallel to each other, and vertical decurrent support arm (052), rotates the side that is provided with pinch roller (054) and this pinch roller (054) through fixed axle (053) between these two support arm (052) and stretches out in dodging groove (032), when bent axle (02) location, cylinder (05) drive pinch roller (054) move down, move down in-process pinch roller (054) and bent axle (02) cam side contact to make bent axle (02) tightly support at reference column (04) terminal surface along its central axis rotation until cam.

2. The crankshaft tail groove machining and positioning tool according to claim 1, characterized in that: and a pressing groove (0613) matched with the side surface of the crankshaft (02) is formed in the pressing head (061).

3. The crankshaft tail groove machining and positioning tool according to claim 1, characterized in that: one side of the crankshaft fixing seat (03) is further provided with a tail fixing seat (09) used for supporting the tail of the crankshaft (02), the tail fixing seat (09) is provided with a limiting groove (091) which is used for limiting the crankshaft (02) and is of a V-shaped structure, and the bottom of the limiting groove (091) of the V-shaped structure is provided with an arc surface attached to the side surface of the crankshaft (02).

4. The crankshaft tail groove machining and positioning tool according to claim 3, characterized in that: pressure head (061) is including the pressure head body that is the cuboid structure, the both ends of the lower terminal surface of pressure head body downwardly extending respectively are provided with preceding pressure head (0611), back pressure head (0612), wherein, preceding pressure head (0611) can tightly support on bent axle (02) side after passing second via hole (035), back pressure head (0612) can tightly support on bent axle (02) side on afterbody fixing base (09), all be equipped with on preceding pressure head (0611), the back pressure head (0612) with the pressing groove (0613) of bent axle (02) side laminating mutually.

5. The crankshaft tail groove machining and positioning tool according to claim 1, characterized in that: and the positioning column (04) is arranged on the crankshaft fixing seat (03) through a threaded structure.