CN209239582U - A flexible fixture for machining the inclined surface of the small end of the engine connecting rod - Google Patents

Abstract

The technical issues of the utility model provides a kind of flexible fixture for processing connecting rod small end of engine inclined-plane, when processing two inclined-planes which solve connecting rod small end of engine both ends of the surface, needs replacing angle board, large labor intensity, processing efficiency is low.It is equipped with fixture base, fixture base is equipped with clamp body, movable daughter board and major part positioning pin are installed on clamp body, microcephaly's positioning pin and compressed oil cylinder are installed on movable daughter board, compressed oil cylinder is equipped with pressing plate, fixture nut and bearing block are installed in fixture base, adjustment screw is equipped in fixture nut, bearing is installed in bearing block, two bearing holes are processed on clamp body, bearing is installed in bearing hole, clamp body is connected with the bearing block on clamp body pedestal by shaft, clamp body two sides are welded with two vertical plates, there are four using bearing hole center as the swivelling chute in the center of circle for processing respectively in vertical plates on both sides.The utility model can be widely applied to there are many angled ramp process requirements parts machining position.

Description

A flexible fixture for machining the inclined surface of the small end of the engine connecting rod

technical field

The utility model relates to a flexible clamp, in particular to a flexible clamp for processing the inclined surface of the small end of the engine connecting rod.

Background technique

We know that the engine connecting rod is an important part in the engine, and its structure is various, but most of them require the structure of two inclined planes to be processed on the two ends of the small end of the connecting rod. The existing clamps are processed by installing an angle plate with the same angle as the bevel angle of the small end of the connecting rod to be processed under the clamp body, so that the connecting rod is placed at an angle for processing. The inclination angle of the fixture is controlled by the angle of the angle plate under the fixture. Since the angle of the angle plate cannot be adjusted, the angle of the fixture cannot be adjusted, so it is only applicable to the processing of one connecting rod product. When there are multiple connecting rod products to be processed, multiple sets of fixtures need to be invested. Firstly, more funds are invested, and secondly, fixtures need to be disassembled and replaced when changing products for processing, which is labor-intensive and time-consuming.

Contents of the invention

The utility model has the following technical problems in the prior art: when processing two slopes on the two ends of the small head of the engine connecting rod, it is necessary to use angle plates with corresponding angles; when there are multiple connecting rod products to be processed, it is necessary to make different Angle plate, resulting in a lot of investment, and also need to dismantle and replace fixtures when changing products, which is labor-intensive and low processing efficiency. A flexible fixture for processing the inclined surface of the small end of the engine connecting rod is provided, which can be adjusted at any time according to different angle requirements, does not require frequent replacement of the fixture, has less investment, low labor intensity, and high processing efficiency.

For this reason, the technical scheme of the utility model is, a kind of flexible clamp that processes the small end slope of the engine connecting rod, is provided with clamp base, and clamp body is arranged on the clamp base, movable sub-plate and large end positioning pin are installed on the clamp body, A small head positioning pin and a compression cylinder are installed on the movable sub-plate, a pressure plate is installed on the compression cylinder, a fixed nut and a bearing seat are installed on the fixture base, an adjusting screw is installed on the fixed nut, and a bearing is installed in the bearing seat. Specifically, two bearing holes are processed, and bearings are installed in the bearing holes. The clamp body and the bearing seat on the base of the clamp body are connected by a rotating shaft. Two vertical plates are welded on both sides of the clamp body, and four vertical plates are processed on both sides. A rotating groove with the center of the bearing hole as the center.

Preferably, T-shaped grooves are processed on the clamp body, T-shaped nuts are arranged in the T-shaped grooves, bolts are arranged on the movable sub-plate, and the bolts are connected with the T-shaped nuts.

Preferably, a bearing cap is provided at the end side of the bearing, and a bearing seat bracket is provided at the lower end of the bearing seat.

Preferably, a small-end spacer is provided on the small-end positioning pin, and a large-end spacer is provided on the large-end positioning pin.

Preferably, the clamp body and the base of the clamp body are connected by locking screws.

The beneficial effects of the utility model are:

(1) Since there is a movable sub-board on the clamp body, and a small-head positioning pin is provided on the movable sub-board, by moving the position of the movable sub-board and replacing the large-head positioning pin, small-head positioning pin, large-end pad, and small-head pad , can process connecting rod products with different big and small head hole spacing and different big and small head hole diameters, which improves the versatility of the fixture;

(2) Since two vertical plates are welded on both sides of the clamp body, four rotating grooves with the center of the bearing hole as the center are respectively processed on the vertical plates on both sides. When the adjusting screw on the fixing nut is rotated, the clamp body will be The center of the bearing hole rotates as the center of the circle to achieve the purpose of adjusting the processing angle of the workpiece to be processed;

(3) Since there are locking screws on both sides of the vertical plate of the clamp body, after the processing angle is adjusted, tighten the locking screws to assist in fixing the clamp body;

(4) Since there is a pressing oil cylinder and a pressing plate is arranged on the pressing oil cylinder, when the machining angle of the workpiece is fixed, the pressing oil cylinder drives the pressing plate to compress the processed workpiece to realize reliable positioning of the processed workpiece.

Description of drawings

Fig. 1 is the front view of the assembly structure of the utility model embodiment;

Fig. 2 is the left view of the assembly structure of the utility model embodiment;

Fig. 3 is a top view of the assembly structure of the utility model embodiment;

Fig. 4 is the A-A sectional view of the utility model embodiment;

Fig. 5 is the B-B sectional view of the utility model embodiment;

Fig. 6 is the C-C sectional view of the utility model embodiment;

Fig. 7 is a D-D sectional view of the embodiment of the utility model.

Explanation of symbols in the figure:

1. Fixture base; 2. Clamp body; 3. Movable sub-plate; 4. Small head positioning pin; 5. Compression cylinder; 6. Pressure plate; 7. Big head positioning pin; 10. Bearing bracket; 11. Rotating shaft; 12. Adjusting screw; 13. Fixed nut; 14. Small head block; 15. Bearing cover; 16. Bearing; Type groove; 20.T type nut.

Detailed ways

Below in conjunction with embodiment the utility model is described further.

As shown in Figure 1-7, a flexible fixture for processing the inclined surface of the small head of the engine connecting rod includes a fixture base 1 and a fixture body 2, a fixing nut 13 and a bearing seat 9 are installed on the fixture base 1, and the fixing nut 13 is equipped with Adjusting screw rod 12, bearing 16 is installed in the bearing seat 9, bearing cover 15 is provided at the end side of bearing 16, and bearing seat support 10 is provided at the lower end of bearing seat 9. Two bearing holes are processed on the clamp body 2. Two vertical plates are welded on both sides of the clamp body 2. Four rotating grooves 18 with the center of the bearing hole as the center are respectively processed on the vertical plates on both sides. The clamp body 2 is equipped with movable The sub-board 3 and the big head positioning pin 7, the small head positioning pin 4 and the compression cylinder 5 are installed on the movable sub-board 3, the small head positioning pin 4 is provided with a small head spacer 14, and the compression cylinder 5 is provided with a pressure plate 6 , The big head positioning pin 7 is provided with a big head cushion block 8.

The clamp body 2 and the bearing seat 9 on the clamp body base 1 are connected by a rotating shaft 11, and the relative rotation of the two is realized through the bearing 16 on the clamp body 2 and the bearing seat 9, thereby realizing the relative rotation of the clamp body 2 relative to the clamp base 1 .

The clamp body 2 is processed with a T-shaped groove 19, and a T-shaped nut 20 is arranged in the T-shaped groove 19. The clamp body 2 and the movable sub-board 3 are connected through the T-shaped nut 20, and the movable sub-board can be realized by loosening the T-shaped nut 20. 3 for lateral movement.

By moving the position of the movable sub-board 3 and replacing the large-end positioning pin 7, the small-end positioning pin 4, the large-end spacer 8 and the small-end spacer 14, it is possible to process different large and small hole pitches and different large and small hole diameters. Rod products, increased fixture versatility.

When the adjusting screw 12 on the fixing nut 13 is rotated, the chuck body 2 will rotate around the center of the bearing hole to achieve the purpose of adjusting the processing angle of the workpiece to be processed. After the angle is adjusted, fasten the locking screws 17 on both sides of the vertical plate of the clamp body 2, assist in fixing the clamp body 2, and then pass the hydraulic pressure to let the compression cylinder 5 drive the pressure plate 6 to compress the connecting rod, and then it can be carried out. processing.

But the above-mentioned ones are only specific embodiments of the utility model, and should not limit the scope of implementation of the utility model, so they are equivalent to the replacement of components, or the equivalent changes and modifications made according to the patent protection scope of the utility model , should still belong to the category covered by the claims of the present utility model.

Claims (5)

1. A flexible clamp for processing the small end slope of the connecting rod of an engine is provided with a clamp base, and it is characterized in that, the clamp base is provided with a clamp body, and a movable sub-plate and a large head positioning pin are installed on the clamp body, so A small head positioning pin and a compression cylinder are installed on the movable sub-plate, a pressure plate is provided on the compression cylinder, a fixing nut and a bearing seat are installed on the clamp base, and an adjusting screw is mounted on the fixing nut, so Bearings are installed in the bearing seat, two bearing holes are processed on the clamp body, bearings are installed in the bearing holes, the clamp body and the bearing seat on the base of the clamp body are connected by a rotating shaft, and the clamp body Two vertical plates are welded on both sides, and four rotating grooves with the center of the bearing hole as the center of the circle are respectively processed on the vertical plates. 2. The flexible clamp for processing the inclined surface of the small end of the connecting rod of the engine according to claim 1, wherein the clamp body is processed with a T-shaped groove, and a T-shaped nut is arranged in the T-shaped groove, and the movable Bolts are arranged on the sub-board, and the bolts are connected with the T-shaped nuts. 3 . The flexible fixture for processing the inclined surface of the small end of the engine connecting rod according to claim 1 , wherein a bearing cap is provided on the end side of the bearing, and a bearing bracket is provided at the lower end of the bearing seat. 4 . 4 . The flexible fixture for processing the inclined surface of the small end of the engine connecting rod according to claim 1 , wherein a small end spacer is provided on the small end positioning pin, and a large end spacer is provided on the large end positioning pin. 5 . The flexible clamp for processing the inclined surface of the small end of the engine connecting rod according to claim 1 , wherein the clamp body and the clamp body base are connected by locking screws. 5 .