CN219504215U

CN219504215U - Clamp for finish turning of outer circle and end face of workpiece

Info

Publication number: CN219504215U
Application number: CN202320820406.9U
Authority: CN
Inventors: 李继良; 张俊涛; 郭志宏
Original assignee: Luoyang Xingda Heavy Industry Equipment Co ltd
Current assignee: Luoyang Xingda Heavy Industry Equipment Co ltd
Priority date: 2023-04-13
Filing date: 2023-04-13
Publication date: 2023-08-11
Anticipated expiration: 2033-04-13

Abstract

The utility model belongs to the technical field of machining fixtures, and particularly relates to a fixture for finish turning of an outer circle and an end surface of a workpiece, which comprises a bottom plate, wherein a positioning mandrel is vertically connected to the center of the bottom plate; the mandrel seats are symmetrically arranged on two sides of the positioning mandrel and are connected with the upper end of the bottom plate; the angle mandrel is inserted into the mandrel seat; the support legs are symmetrically arranged on two sides of the mandrel seat and connected with the upper end of the bottom plate; the pressing plate assembly is arranged on the upper part of the mandrel seat, and two sides of the pressing plate assembly are detachably connected with the supporting legs.

Description

Clamp for finish turning of outer circle and end face of workpiece

Technical Field

The utility model belongs to the technical field of machining clamps, and particularly relates to a clamp for finish turning of an outer circle and an end face of a workpiece.

Background

In the case of a differential case shown in fig. 5, when the outer circle polishing is performed on the end face of the input shaft sleeve, the workpiece needs to be integrally clamped by a clamp, and the stability is achieved when the machining tool is brought into contact with the workpiece.

The chinese patent with the application number of CN201410544136.9 discloses a differential case cross axle clamp, which comprises a base, be provided with two stands on the base, install actuating cylinder between the two stands, be provided with a piston rod on the actuating cylinder, the piston rod other end fixedly connected with anchor clamps body, the stand passes the anchor clamps body, and the anchor clamps body can slide on the stand, the stand upper end is provided with fixation nut, the anchor clamps is internal to be provided with a clamp cylinder, is provided with a guide pull rod on the clamp cylinder, guide pull rod upper end is provided with the clamping ring, be provided with the uide bushing between stand and the anchor clamps body, the anchor clamps body upper end is provided with a position cover.

Because the workpiece is a special-shaped piece, the two output shaft sleeve parts at the bottom of the workpiece are not positioned on the same horizontal plane and present a certain inclination angle, the workpiece is difficult to clamp and fasten by adopting the existing clamp in the finish turning of the excircle and the end face, and the clamp is required to be improved in pertinence.

Disclosure of Invention

In order to solve the technical problems, the utility model adopts the following technical scheme:

the fixture for finish turning of the outer circle and the end face of the workpiece comprises a bottom plate, wherein a positioning mandrel is vertically connected to the center of the bottom plate;

the mandrel seats are symmetrically arranged on two sides of the positioning mandrel and are connected with the upper end of the bottom plate;

the angle mandrel is inserted into the mandrel seat;

the support legs are symmetrically arranged on two sides of the mandrel seat and connected with the upper end of the bottom plate;

the pressing plate assembly is arranged on the upper portion of the mandrel seat, and two sides of the pressing plate assembly are detachably connected with the support legs.

Further, the periphery of the positioning mandrel is sleeved with a positioning sleeve and an adjusting piece from top to bottom.

Further, the adjustment member includes a nut.

Further, the mandrel base is U-shaped.

Further, the mandrel seat comprises an inclined plate connected with the upper end of the bottom plate and side lugs arranged on two sides of the upper end of the inclined plate, and through holes matched with the outer diameter of the angle mandrel are formed in the side lugs.

Further, the outer end face of the angle mandrel is also connected with a gripper.

Further, the two mandrel holders are inclined, and the included angle between the plane where the mandrel holders are located and the vertical plane is 81.5 degrees.

Further, the lower end of the pressing plate component is provided with a groove.

Further, the platen assembly also has an arcuate bumper positioned at the recess.

Compared with the prior art, the utility model has the following beneficial effects:

the mandrel seat matched with the inclination angle of the workpiece output shaft sleeve is adopted, and the angle mandrel penetrates through and is matched with the output shaft sleeves on two sides of the workpiece, so that on one hand, the workpiece input shaft sleeve part is in a vertical state, the end face of the workpiece is processed by a cutter, on the other hand, the workpiece is fixed by matching with the pressing plate assembly, the freedom degree of the workpiece in the axial direction of the positioning mandrel is limited, and the problem that the input shaft sleeve is in an inclined state when the existing clamp clamps the special-shaped workpiece is solved;

the positioning mandrel is arranged, the workpiece is installed rapidly, the positioning sleeve at the periphery of the positioning mandrel is matched with the inner top surface of the workpiece, concentricity is guaranteed, the adjusting piece is in threaded connection with the positioning mandrel, the adjusting piece is rotated, the upper positioning sleeve can be pushed upwards, or the positioning sleeve can be moved downwards to be adjusted, so that the matching degree of the positioning sleeve and the workpiece is better, and the positioning sleeve has better compatibility for processing similar workpieces with different sizes.

Drawings

FIG. 1 is a schematic diagram showing a front view of an embodiment of a fixture for finish turning of an outer circle and an end face of a workpiece according to the present utility model;

FIG. 2 is a schematic top view of an embodiment of a fixture for finish turning of an outer circle and an end surface of a workpiece;

FIG. 3 is a schematic perspective view of an embodiment of a fixture for finish turning of an outer circle and an end surface of a workpiece according to the present utility model;

FIG. 4 is a schematic diagram of an exploded view of an embodiment of a fixture for finish turning of an outer circle and an end face of a workpiece according to the present utility model;

FIG. 5 is a schematic view of the structure of a workpiece in an embodiment of a fixture for finish turning of an outer circle and an end face of the workpiece according to the present utility model;

reference numerals in the drawings of the specification include:

the device comprises a bottom plate 1, a positioning mandrel 2, a positioning sleeve 20, an adjusting piece 21, a mandrel seat 3, an inclined plate 30, side lugs 31, through holes 310, an angle mandrel 4, a grip 41, support legs 5, a pressing plate assembly 6, a groove 60, an arc-shaped buffer piece 61 and a workpiece 7.

Detailed Description

In order that those skilled in the art will better understand the present utility model, the following technical scheme of the present utility model will be further described with reference to the accompanying drawings and examples.

Wherein the drawings are for illustrative purposes only and are shown in schematic, non-physical, and not intended to be limiting of the present patent; for the purpose of better illustrating embodiments of the utility model, certain elements of the drawings may be omitted, enlarged or reduced and do not represent the size of the actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted, and that like or similar reference numerals in the drawings correspond to like or similar components in the embodiments of the present utility model; in the description of the present utility model, it should be understood that, if the terms "upper", "lower", "left", "right", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, only for convenience in describing the present utility model and simplifying the description, rather than indicating or implying that the apparatus or elements being referred to must have a specific orientation, be constructed and operated in a specific orientation, so that the terms describing the positional relationships in the drawings are merely for exemplary illustration and should not be construed as limiting the present patent, and that the specific meaning of the terms described above may be understood by those of ordinary skill in the art according to specific circumstances.

Examples:

as shown in figures 1-5, the clamp for finish turning of the excircle and the end face of a workpiece comprises a bottom plate 1, wherein a positioning mandrel 2 is vertically connected to the center of the bottom plate 1, the positioning mandrel 2 is arranged, the workpiece 7 is quickly installed, the bottom plate 1 is installed at the upper end of an output spindle of a lathe, in the end face of the workpiece, the bottom plate 1 is driven to rotate, so that the whole clamp drives the workpiece to rotate together, and the periphery and the end face of the workpiece are machined by a cutter above the workpiece.

The mandrel seats 3 are symmetrically arranged on two sides of the positioning mandrel 2 and are connected with the upper end of the bottom plate 1, and the angle mandrel 4 is inserted into the mandrel seats 3;

the stabilizer blade 5 symmetry sets up in the both sides of mandrel seat 3 and is connected with bottom plate 1 upper end, and wherein, clamp plate assembly 6 sets up in the upper portion of mandrel seat 3, and clamp plate assembly 6's both sides and stabilizer blade 5 adopt the bolt dismantlement to be connected, and cooperation clamp plate assembly 6 is fixed this work piece 7, and restriction work piece 7 is in the ascending degree of freedom of location dabber 2 axial, has solved when anchor clamps to the centre gripping of this type special-shaped work piece 7, and its input axle sleeve is in the problem of incline condition.

The mandrel seat 3 matched with the inclination angle of the output shaft sleeve of the workpiece 7 is adopted, the angle mandrel 4 penetrates through and is matched with the output shaft sleeves at two sides of the workpiece 7, so that the input shaft sleeve part of the workpiece 7 is in a vertical state, and the end face processing of a cutter is facilitated.

The positioning sleeve 20 and the adjusting piece 21 are sleeved on the periphery of the positioning mandrel 2 from top to bottom, the positioning sleeve 20 on the periphery of the positioning mandrel 2 is matched with the inner top surface of the workpiece 7, concentricity is guaranteed, the adjusting piece 21 is connected with the positioning mandrel 2 through threads, the adjusting piece 21 is rotated, the upper positioning sleeve 20 can be pushed upwards, or the positioning sleeve 20 is moved downwards to be adjusted, so that the matching degree of the positioning sleeve 20 and the workpiece 7 is better, the same type workpieces 7 with different sizes are processed, the adjusting piece 21 can be nuts, if the workpiece 7 with larger sizes is clamped and installed, the adjusting piece 21 is rotated right, the adjusting piece 21 moves the positioning sleeve 20 towards the end of the positioning mandrel 2, the positioning sleeve 20 is matched with the inner part of the workpiece 7 through contact, and when the workpiece 7 with smaller size is installed, the adjusting piece 21 is rotated reversely, and the positioning sleeve 20 moves downwards under the action of gravity.

The mandrel seat 3 is U-shaped, the specific mandrel seat 3 comprises an inclined plate 30 connected with the upper end of the bottom plate 1 and side lugs 31 arranged on two sides of the upper end of the inclined plate 30, through holes 310 matched with the outer diameter of the angle mandrel 4 are formed in the side lugs 31, when the workpiece 7 is installed or dismounted, the grippers 41 connected with the outer end face of the angle mandrel 4 can be used for moving the angle mandrel 4, the angle mandrel 4 and the side lugs 31 are fixed through nuts, and the workpiece 7 is prevented from being separated from the mandrel seat 3 in the process of rotating together with a clamp.

The two mandrel holders 3 are inclined, the included angle between the plane where the mandrel holders 3 are positioned and the vertical plane is 81.5 degrees, in addition, the mandrel holders 3 with different heights can be adopted, and the inserted angle mandrel 4 is inclined and matched with a workpiece by utilizing the height difference of the two side ears 3;

as shown in fig. 4, a groove 60 is formed at the lower end of the pressing plate assembly 6, the size of the groove 60 is matched with two output shaft sleeves of the workpiece 7, in addition, the pressing plate assembly 6 is further provided with an arc-shaped buffer member 61, the arc-shaped buffer member 61 is located at the groove 60, the arc-shaped buffer member 61 is made of elastic materials, and in the installation of the pressing plate assembly 6, the pressing plate assembly 6 is prevented from being directly contacted with the workpiece 7 during the pressing and locking process, so that the workpiece 7 is damaged.

The foregoing is merely exemplary of the present utility model, and specific structures and features well known in the art will not be described in detail herein, so that those skilled in the art will be aware of all the prior art to which the present utility model pertains, and will be able to ascertain the general knowledge of the technical field in the application or prior art, and will not be able to ascertain the general knowledge of the technical field in the prior art, without using the prior art, to practice the present utility model, with the aid of the present utility model, to ascertain the general knowledge of the same general knowledge of the technical field in general purpose. It should be noted that modifications and improvements can be made by those skilled in the art without departing from the structure of the present utility model, and these should also be considered as the scope of the present utility model, which does not affect the effect of the implementation of the present utility model and the utility of the patent.

Claims

1. The utility model provides a work piece excircle and terminal surface anchor clamps for finish turning which characterized in that includes:

the bottom plate is vertically connected with a positioning mandrel at the center of the bottom plate;

the angle mandrel is inserted into the mandrel seat;

2. The fixture for finish turning of the outer circle and the end face of a workpiece as claimed in claim 1, wherein: the periphery of the positioning mandrel is sleeved with a positioning sleeve and an adjusting piece from top to bottom.

3. The fixture for finish turning of the outer circle and the end face of a workpiece as claimed in claim 2, wherein: the adjustment member includes a nut.

4. The fixture for finish turning of the outer circle and the end face of a workpiece as claimed in claim 1, wherein: the mandrel seat is U-shaped.

5. The fixture for finish turning of the outer circle and the end face of a workpiece as claimed in claim 1, wherein: the mandrel seat comprises an inclined plate connected with the upper end of the bottom plate and side lugs arranged on two sides of the upper end of the inclined plate, and through holes matched with the outer diameter of the angle mandrel are formed in the side lugs.

6. A fixture for finish turning of outer circle and end face of workpiece according to claim 1 or 5, characterized in that: the outer end face of the angle mandrel is also connected with a gripper.

7. A fixture for finish turning of outer circle and end face of workpiece as claimed in claim 1, 4 or 5, wherein: the two mandrel holders are inclined, and the included angle between the plane where the mandrel holders are located and the vertical plane is 81.5 degrees.

8. The fixture for finish turning of the outer circle and the end face of a workpiece as claimed in claim 1, wherein: the lower end of the pressing plate component is provided with a groove.

9. The fixture for finish turning of the outer circle and the end face of a workpiece as claimed in claim 8, wherein: the platen assembly also has an arcuate bumper positioned at the recess.