CN215393805U

CN215393805U - Special fixture for turning large hole on rocker arm

Info

Publication number: CN215393805U
Application number: CN202121759987.7U
Authority: CN
Inventors: 代天生; 魏金洪
Original assignee: Laohekou Chuxin Casting Co ltd
Current assignee: Laohekou Chuxin Casting Co ltd
Priority date: 2021-07-30
Filing date: 2021-07-30
Publication date: 2022-01-04
Anticipated expiration: 2031-07-30

Abstract

The utility model relates to the technical field, in particular to a special fixture for a large hole of a rocker arm vehicle, which is provided with an upper clamping jaw and a lower positioning jaw for clamping a rocker arm in combination with a rocker arm structure, is accurate in positioning and simple to operate; the rotary table is driven by a rotary motor, and the rotary table drives the rocker arm to rotate, so that the milling of the hole end face after hole turning is facilitated; the upper clamping jaw and the lower positioning jaw are fixed through the fixing seat, so that the distance between the upper clamping jaw and the lower positioning jaw can be conveniently adjusted according to the type of the rocker arm, and the device is strong in universality.

Description

Special fixture for turning large hole on rocker arm

Technical Field

The utility model relates to the technical field of tool fixtures, in particular to a special fixture for a large hole of a rocker arm lathe.

Background

The rocking arm is the indispensable mechanism of automobile engine, and the rocking arm structure is shown as 5 in fig. 2, and the rocking arm is the odd-shaped structure, and rocking arm processing has a plurality of cambered surfaces and curved surface to constitute, and the size and the screw thread of the part hole of rocking arm and form and position precision require higher, with four-jaw chuck direct location clamping on the lathe, because of the influence of blank error is the repeatability positioning accuracy not high, and the clamping alignment is wasted time and energy. The method can not be suitable for mass production and can not ensure stable processing quality.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects in the prior art and provides a special fixture for a large hole of a rocker arm vehicle, which is simple in structure, simple to operate and high in positioning and processing precision.

The technical scheme adopted by the utility model for solving the technical problems is as follows: the utility model provides a rocking arm car macropore special fixture, includes the carousel through rotating electrical machines drive, the carousel sets up the last tight jack catch of clamp and the lower location jack catch that is used for pressing from both sides tight rocking arm, location jack catch middle part is provided with the constant head tank down, the location jack catch is provided with first positioning seat and the second positioning seat that is used for rocking arm tip location down, the location jack catch is provided with the third positioning seat that is used for rocking arm lateral part location down, the top of first positioning seat is provided with the first tight seat that presss from both sides, the top of second positioning seat is provided with the tight seat of second clamp.

Preferably, go up and press from both sides tight jack catch with down the location jack catch pass through the fixing base with the carousel is fixed, so set up, the fixed disk with the carousel is fixed, go up and press from both sides tight jack catch with down the location jack catch with the connection can be dismantled to the fixed disk, is convenient for adjust go up press from both sides tight jack catch with distance between the lower location jack catch.

Preferably, the fixing base is provided with a plurality of third locating holes, the fixing base pass through the bolt with the carousel can be dismantled fixedly, the fixing base includes fixing base and lower fixing base, so set up and be convenient for install the rocking arm, the rocking arm processing car spot facing work cutter of being convenient for is processed.

Preferably, the third locating hole is a step hole, the upper clamping jaw is provided with a plurality of first fixing holes, the upper clamping jaw is detachably fixed with the fixing base through a locating shaft, the lower clamping jaw is provided with a plurality of second fixing holes, and the lower clamping jaw is detachably fixed with the fixing base through a locating shaft.

Preferably, the first positioning seat and the second positioning seat are in threaded fit with the lower positioning claw, and the heights of the first positioning seat and the second positioning seat are adjustable.

Preferably, the positioning groove is V-shaped or arc-shaped.

The special fixture for the large hole of the rocker arm lathe has the advantages that: 1. the combined rocker arm structure comprises the upper clamping jaw and the lower positioning jaw which are used for clamping the rocker arm, and is accurate in positioning and simple to operate. 2. The hole milling machine comprises a rotary table, wherein the rotary table is driven by a rotary motor, and the rotary table drives a rocker arm to rotate, so that the hole end face after hole turning is convenient to mill and process. 3. The upper clamping jaw and the lower positioning jaw are fixed through the fixing seat, so that the distance between the upper clamping jaw and the lower positioning jaw can be conveniently adjusted according to the type of the rocker arm, and the device is strong in universality.

Drawings

FIG. 1 is a schematic structural view of a large hole special fixture for a rocker arm lathe.

Fig. 2 is a schematic view of the structure of fig. 1 working with a rocker arm.

Fig. 3 is a schematic structural view of the third fixing hole in fig. 1.

Description of reference numerals:

1-rotating disc, 2-upper clamping jaw, 21-first clamping seat, 22-second clamping seat, 23-first positioning hole, 3-lower positioning jaw, 31-first positioning seat, 32-second positioning seat, 33-third positioning seat, 34-second positioning hole, 4-fixing seat, 41-third positioning hole, 5-rocker arm.

Detailed Description

The present invention will be described in further detail with reference to the following drawings and specific examples, which are not intended to limit the scope of the utility model.

As shown in fig. 1 and 2, the clamp for turning the large hole on the rocker arm of the present embodiment is specially used for positioning and clamping the hole on the rocker arm 5, and comprises a turntable 1 driven by a rotating motor, wherein the turntable 1 is provided with an upper clamping claw 2 and a lower positioning claw 3 for clamping the rocker arm 5; the upper clamping jaw 2 and the lower positioning jaw 3 are fixed with the rotary table 1 through a fixed seat 4, and a positioning groove is arranged in the middle of the lower positioning jaw 3 and is V-shaped or arc-shaped; the lower positioning claw 3 is provided with a first positioning seat 31 and a second positioning seat 31 which are used for positioning the end part of the rocker arm 5 and have adjustable heights, and a third positioning seat 3 used for positioning the side part of the rocker arm 5, the first positioning seat 31 and the second positioning seat 32 are in threaded fit with the lower positioning claw 3, a first clamping seat 21 is arranged above the first positioning seat 31, and a second clamping seat 22 is arranged above the second positioning seat 32; fixing base 4 includes fixing base and lower fixing base two parts, the fixing base is provided with a plurality of third locating hole 41, as shown in fig. 3, third locating hole 41 is the step hole, fixing base 41 can dismantle fixedly through bolt and carousel 1, it is provided with a plurality of first fixed orificess 21 to go up to press from both sides tight jack catch 2, it can dismantle fixedly through location axle and fixing base 4 to go up to press from both sides tight jack catch 2, it is provided with a plurality of second fixed orificess 31 to fix a position jack catch 3 down, it can dismantle fixedly through location axle and fixing base 4 to fix a position jack catch 3 down, through the adjustment locating hole, realize the adjustment down position jack catch 3 and last press from both sides the distance between the jack catch 2 and adjust.

Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the protection scope of the present invention, although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.

Claims

1. The utility model provides a rocking arm car macropore special fixture which characterized in that: including the carousel through rotating electrical machines drive, the carousel sets up and is used for pressing from both sides tight jack catch and the lower location jack catch of the last clamp that presss from both sides tight rocking arm, location jack catch middle part is provided with the constant head tank down, the location jack catch is provided with first locating seat and the second locating seat that is used for rocking arm tip location down, the jack catch is provided with the third locating seat that is used for rocking arm lateral part location down, the top of first locating seat is provided with the first tight seat that presss from both sides, the top of second locating seat is provided with the tight seat of second clamp.

2. The special fixture for the large hole of the rocker arm lathe as claimed in claim 1, wherein: the upper clamping jaw and the lower positioning jaw are fixed with the rotary table through a fixed seat.

3. The special fixture for the large hole of the rocker arm lathe as claimed in claim 2, wherein: the fixing base is provided with a plurality of third locating holes, the fixing base pass through the bolt with the carousel can be dismantled fixedly, the fixing base includes fixing base and lower fixing base.

4. The special fixture for the large hole of the rocker arm lathe as claimed in claim 3, wherein: the third locating hole is the step hole, it is provided with a plurality of first fixed orificess to go up the clamping jaw, go up the clamping jaw through the location axle with the fixing base can be dismantled fixedly, the location jack catch is provided with a plurality of second fixed orificess down, the location jack catch down through the location axle with the fixing base can be dismantled fixedly.

5. The special fixture for the large hole of the rocker arm lathe as claimed in claim 1, wherein: the first positioning seat and the second positioning seat are in threaded fit with the lower positioning clamping jaw, and the heights of the first positioning seat and the second positioning seat can be adjusted.

6. The special fixture for the large hole of the rocker arm lathe as claimed in claim 1, wherein: the positioning groove is V-shaped or arc-shaped.