CN212945637U

CN212945637U - Fixture for milling equal-graduation surface of small head of engine connecting rod

Info

Publication number: CN212945637U
Application number: CN202022025241.5U
Authority: CN
Inventors: 陈景华
Original assignee: Anhui Yuqiao Precision Automation Machinery Co ltd
Current assignee: Anhui Yuqiao Precision Automation Machinery Co ltd
Priority date: 2020-09-16
Filing date: 2020-09-16
Publication date: 2021-04-13
Anticipated expiration: 2030-09-16

Abstract

The utility model discloses an engine connecting rod microcephaly mills equidimension face processing and uses anchor clamps, including the fixed block, the cross spout has been seted up to the fixed block lateral wall, the spout internal rotation is equipped with many threaded rods, the slider has been cup jointed to the screw thread on the threaded rod, slider one end fixedly connected with is supported the board, the fixed cover of one end of threaded rod has been cup jointed first bevel gear, spout center department rotates and is equipped with second bevel gear, first bevel gear is connected with second bevel gear meshing, the lateral wall that the spout was kept away from to the fixed block rotates installs the dwang, dwang one end penetrates in the spout and cup joints with second bevel gear is fixed, dwang other end fixed mounting. Through rotating the regulating wheel, second bevel gear drives first bevel gear and takes place to rotate, and the metal sheet just can remove along with the slider is together, until closely laminating with connecting rod big-end inner circle and form the centre gripping can, the centre gripping object is no longer single, adjusts high efficiency moreover, has improved machining efficiency.

Description

Fixture for milling equal-graduation surface of small head of engine connecting rod

Technical Field

The utility model belongs to the technical field of the processing of engine connecting rod, especially, relate to an engine connecting rod microcephaly mills etc. and divides face machining and uses anchor clamps.

Background

The connecting rod is used for transmitting the acting force between the piston and the crankshaft and converting the reciprocating motion of the piston into the rotating motion of the crankshaft. For a small connecting rod head of a high-power engine, a plurality of equal-graduation surfaces are milled on the outer circumferential surface of the small connecting rod head through a milling machine, during machining, a connecting rod is fixed on a fixture of the milling machine, and then the outer circumferential surface of the small connecting rod head is equally divided through a cutting technology.

The existing small end of the connecting rod can clamp and fix the large end of the connecting rod during processing, and then the small end of the connecting rod is cut. The existing connecting rods are multiple in size and different in size, the size of the large end of the connecting rod can be changed along with the size change naturally, but the existing clamp for machining the connecting rod cannot adjust the large end of the connecting rod according to the size difference, and the clamping object of the clamp is too single.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the current anchor clamps for connecting rod processing can't adjust self according to the difference of connecting rod size, and the centre gripping object is too single shortcoming, and the engine connecting rod microcephaly that provides mills etc. and divides face processing and uses anchor clamps.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides an engine connecting rod microcephaly mills equidimension face processing and uses anchor clamps, includes the fixed block, the cross spout has been seted up to the fixed block lateral wall, the spout internal rotation is equipped with many threaded rods, the slider has been cup jointed to the screw thread on the threaded rod, slider one end fixedly connected with supports the board, the fixed cover of one end of threaded rod has been cup jointed first bevel gear, spout center department rotates and is equipped with second bevel gear, first bevel gear is connected with second bevel gear meshing, the lateral wall that the spout was kept away from to the fixed block rotates installs the dwang, dwang one end penetrates in the spout and cup joints with second bevel gear is fixed, dwang.

Preferably, a buffer mechanism for damping and abutting is arranged on the surface, far away from the first bevel gear, of the abutting plate.

Preferably, the buffer mechanism comprises a hollow pipe, an installation rod is inserted in the hollow pipe, an elastic metal plate is fixedly installed at the other end of the installation rod, a spring is arranged at the inner bottom end of the hollow pipe, and the other end of the spring is fixedly connected with the installation rod.

Preferably, a first limiting groove is formed in the fixing block, a limiting block is rotationally arranged in the first limiting groove, and one end of the threaded rod is fixedly connected with the limiting block.

Preferably, the side wall all seted up spherical groove about the slider, the ball rolls in the spherical groove and inlays and be equipped with the ball, the cell wall all has seted up the second spacing groove about the spout, ball and the rolling contact of second spacing groove cell wall.

Preferably, an anti-slip layer is bonded to one surface, far away from the mounting rod, of the metal plate, and the anti-slip layer is made of rubber.

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

after the staff determines that the connecting rod to be processed is too large in size, the rotating rod rotates by rotating the adjusting wheel, so that the second bevel gear drives the first bevel gear to rotate, the threaded rod rotates, the sliding block can move on the threaded rod along with the threaded rod, the supporting plate fixedly connected with the sliding block can move, the buffer mechanism fixedly connected with the supporting plate can move along with the sliding block, and clamping fixation is achieved until the elastic metal plate is in close contact with the inner ring of the big end of the connecting rod. This is novel compare with traditional, thereby can adjust self according to the difference of connecting rod size to it is fixed to make can adjust and then the centre gripping according to the arbitrary size of connecting rod, and the centre gripping object is no longer single.

Drawings

Fig. 1 is a schematic structural view of an engine connecting rod small end milling equal-graduation surface processing clamp provided by the utility model;

fig. 2 is a schematic side view of the jig for machining the graduation surface of the engine connecting rod small end milling machine according to the present invention;

FIG. 3 is a schematic structural view of the engine connecting rod small end milling equi-graduation surface processing fixture provided by the present invention when being clamped;

fig. 4 is a schematic structural view of a slide block of the jig for processing the graduation surface of the engine connecting rod small-end milling and the like provided by the utility model;

FIG. 5 is an enlarged view of the structure at A in FIG. 3;

fig. 6 is an enlarged view of the structure at B in fig. 3.

In the figure: the anti-skid device comprises a fixing block 1, a sliding groove 2, a threaded rod 3, a sliding block 4, a pushing plate 5, a first bevel gear 6, a second bevel gear 7, a rotating rod 8, an adjusting wheel 9, a buffer mechanism 10, a hollow tube 101, an installation rod 102, a metal plate 103, a spring 104, a first limiting groove 11, a limiting block 12, a spherical groove 13, a spherical ball 14, a second limiting groove 15 and an anti-skid layer 16.

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.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Referring to fig. 1-6, an engine connecting rod microcephaly mills an equal graduation face and uses anchor clamps, including fixed block 1, cross spout 2 has been seted up to fixed block 1 lateral wall, 2 rotations of spout are equipped with many threaded rods 3, threaded rod 3 goes up the screw thread and has cup jointed

slider

4, 4 one end fixedly connected with of slider is supported board 5, threaded rod 3's one end is fixed to cup joint has first bevel gear 6, spout 2 center department rotates and is equipped with second bevel gear 7, first bevel gear 6 is connected with second bevel gear 7 meshing, fixed block 1 keeps away from the lateral wall rotation of spout 2 and installs dwang 8, dwang 8 one end penetrates in spout 2 and cup joints with second bevel gear 7 is fixed, 8 other end fixed mounting of dwang.

In the embodiment of the application of the technical scheme, after the worker determines that the size of the connecting rod to be processed is too large, the worker rotates the adjusting wheel 9, because the adjusting wheel 9 is fixedly sleeved at one end of the rotating rod 8, the rotating rod 8 can rotate, and because the second bevel gear 7 is fixedly sleeved at the other end of the rotating rod 8, and the first bevel gear 6 is meshed with the second bevel gear 7, the second bevel gear 7 can drive the first bevel gear 6 to rotate, because the first bevel gear 6 is sleeved at one end of the threaded rod 3, the threaded rod 3 can also rotate, meanwhile, the sliding block 4 which is sleeved on the threaded rod 3 in a threaded manner can also move on the threaded rod 3, the abutting plate 5 which is fixedly connected with the threaded rod can also move, and when the abutting plate 5 is in close contact with the large end of the connecting rod, the inner ring is clamped and fixed. This is novel compare with traditional, thereby can adjust self according to the difference of connecting rod size to it is fixed to make can adjust and then the centre gripping according to the arbitrary size of connecting rod, and the centre gripping object is no longer single.

In the preferred technical scheme of this embodiment, a buffer mechanism 10 for damping and pressing is disposed on the surface of the abutting plate 5 away from the first bevel gear 6. The buffer mechanism 10 can buffer the acting force generated during cutting while playing a clamping effect, so that the stability of work proceeding is ensured, and the damage to the clamp is small.

In the preferred technical solution of this embodiment, the buffering mechanism 10 includes a hollow tube 101, a mounting rod 102 is inserted into the hollow tube 101, an elastic metal plate 103 is fixedly mounted at the other end of the mounting rod 102, a spring 104 is disposed at the bottom end of the hollow tube 101, and the other end of the spring 104 is fixedly connected with the mounting rod 102. When vibrations appear in the cutting process, one end of the mounting rod 102 can move in the hollow tube 101, so that the spring 104 contracts and plays a role in buffering and damping, the elastic metal plate 103 plays a role in abutting against the inner ring of the large end of the connecting rod, the radian of the elastic metal plate can be changed along with abutting against the inner ring, and the elastic metal plate is attached to the connecting rod, so that the clamping effect is more stable.

According to the preferable technical scheme in the embodiment, the first limiting groove 11 is formed in the fixing block 1, the limiting block 12 is rotatably arranged in the first limiting groove 11, and one end of the threaded rod 3 is fixedly connected with the limiting block 12. The first limiting groove 11 limits the rotation range of the limiting block 12 and the rotation range of the threaded rod 3, and ensures that the position of the threaded rod 3 cannot deviate when the rotating rod 8 rotates for adjustment.

According to the preferable technical scheme in the embodiment, the left side wall and the right side wall of the sliding block 4 are both provided with spherical grooves 13, the spherical grooves 13 are internally embedded with balls 14 in a rolling manner, the left side wall and the right side wall of the sliding groove 2 are both provided with second limiting grooves 15, and the balls 14 are in rolling contact with the walls of the second limiting grooves 15. The spherical balls 14 reduce the frictional force generated when the surface of the slider 4 is in sliding contact with the side wall of the chute 2.

In the preferred technical scheme of this embodiment, the anti-slip layer 16 is adhered to one surface of the metal plate 103 away from the mounting rod 102, and the anti-slip layer 16 is made of rubber. The rubber has viscosity, elasticity and plasticity, the radian can be changed along with the elastic metal plate 103, and the anti-slip layer 16 can increase the friction force between the metal plate 103 and the connecting rod big-end inner ring when the metal plate is pressed against the connecting rod big-end inner ring, so that the clamping effect is better.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A clamp for milling an equal-graduation surface of a connecting rod small end of an engine comprises a fixed block (1), it is characterized in that the side wall of the fixed block (1) is provided with a cross-shaped sliding chute (2), a plurality of threaded rods (3) are rotatably arranged in the sliding groove (2), a sliding block (4) is sleeved on the threaded rods (3) in a threaded manner, one end of the sliding block (4) is fixedly connected with a supporting plate (5), one end of the threaded rod (3) is fixedly sleeved with a first bevel gear (6), a second bevel gear (7) is rotatably arranged at the center of the chute (2), the first bevel gear (6) is meshed and connected with the second bevel gear (7), the side wall of the fixed block (1) far away from the sliding chute (2) is rotatably provided with a rotating rod (8), dwang (8) one end penetrate in spout (2) and cup joint with second bevel gear (7) is fixed, dwang (8) other end fixed mounting has regulating wheel (9).

2. The clamp for machining the milling-equal-degree surface of the connecting rod small end of the engine as claimed in claim 1, wherein the surface of the abutting plate (5) far away from the first bevel gear (6) is provided with a buffer mechanism (10) for damping and abutting.

3. The clamp for machining the milling graduation surface of the engine connecting rod small end is characterized in that the buffering mechanism (10) comprises a hollow tube (101), a mounting rod (102) is inserted into the hollow tube (101), an elastic metal plate (103) is fixedly mounted at the other end of the mounting rod (102), a spring (104) is arranged at the inner bottom end of the hollow tube (101), and the other end of the spring (104) is fixedly connected with the mounting rod (102).

4. The clamp for machining the milling-equi-graduation surface of the engine connecting rod small end according to claim 1, wherein a first limiting groove (11) is formed in the fixing block (1), a limiting block (12) is rotatably arranged in the first limiting groove (11), and one end of the threaded rod (3) is fixedly connected with the limiting block (12).

5. The jig for machining the milling-equi-graduation surface of the engine connecting rod is characterized in that the left and right side walls of the sliding block (4) are respectively provided with a spherical groove (13), a round ball (14) is embedded in the spherical grooves (13) in a rolling manner, the left and right side walls of the sliding groove (2) are respectively provided with a second limiting groove (15), and the round ball (14) is in rolling contact with the wall of the second limiting groove (15).

6. The jig for machining the indexing surface of the engine connecting rod, such as a small head mill, as claimed in claim 3, wherein an anti-slip layer (16) is bonded to a surface of the metal plate (103) away from the mounting rod (102), and the anti-slip layer (16) is made of rubber.