CN215788190U

CN215788190U - Machine tool clamp for rear end cover of engine

Info

Publication number: CN215788190U
Application number: CN202121596152.4U
Authority: CN
Inventors: 陈行; 张�浩; 方园; 李勋
Original assignee: Hubei Jingjun Automobile Components Co ltd
Current assignee: Hubei Jingjun Automobile Components Co ltd
Priority date: 2021-07-14
Filing date: 2021-07-14
Publication date: 2022-02-11
Anticipated expiration: 2031-07-14

Abstract

A machine tool fixture for an engine rear end cover, comprising: a horizontally disposed mounting plate; the two first corner cylinders are respectively fixed on the left side and the right side of the front end of the mounting plate, piston rods of the two first corner cylinders are arranged upwards, and first pressing blocks are arranged on the piston rods; the rod part of the first positioning screw rod extends backwards, and the first positioning screw rod is positioned between the two first corner cylinders; the second corner cylinder is positioned right behind the first positioning screw rod, a piston rod of the second corner cylinder is arranged upwards, and a second pressing block is arranged on the piston rod; the two lateral positioning blocks are fixed on the mounting plate in a bilateral symmetry mode and are positioned on the rear side of the first corner cylinder on the left side and the right side corresponding to each other; the positioning head is fixed on the mounting plate and is positioned right behind the lateral positioning block on the left side and the right side; the positioning head extends towards the left inner side and the right inner side; the second positioning screw rod extends left and right and the rod part is right opposite to the positioning head; wherein, a supporting nail is arranged right below the second pressing block and the first pressing block and is fixed on the mounting plate.

Description

Machine tool clamp for rear end cover of engine

Technical Field

The utility model relates to the field of automobile part machining and manufacturing, in particular to a machine tool clamp for a rear end cover of an engine.

Background

As shown in fig. 1 and 2, a rear end cover 01 of a conventional automobile engine generally includes an inner cylinder 011 and a connecting flange 012, and a radially inner end of the connecting flange 012 is depressed away from the inner cylinder 011 to form a connecting platform 013 on the other side. The rear end of the connecting table 013 is deformed outward in the radial direction to form a rectangular portion 019, and the connecting flange 012 extends to the outer wall of the rectangular portion 019. The inner edge of the connecting flange 012 protrudes and forms an arc-shaped processing positioning boss 014 towards one side far away from the connecting platform 013. The outer diameter of the positioning boss 014 is the same as that of the connecting table 013. The connecting flange 012 is provided with a plurality of first circular holes 016, and the connecting platform 013 is provided with a plurality of second circular holes 017. The left side and the right side of the rectangular portion 019 are also provided with contour holes 018. Stepped surfaces 015 are respectively provided on both axial sides of the inner hole of the inner cylinder 011.

The process of processing the rear end cover blank comprises the following steps:

OP 10: the flange face, the end face on the same side of the inner cylinder, the step face 015 on the same side, the end face on the same side of the second round hole 017, the periphery of the positioning boss 014, the inner hole of the inner cylinder 011, the first round hole 016 and the second round hole 017 are processed.

OP 20: after the blank is turned over, the end face of the connecting table 013, the step face 015 on the other side and the end faces of the first round hole 016 and the second round hole 017 on the other side are machined;

OP 30: machining a contour hole 018;

due to the fact that the structure of the machine tool clamp is irregular, special positioning and clamping are needed when the machine tool clamp is used for machining, and therefore a special machine tool clamp needs to be provided.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a machine tool fixture for a rear end cover of an engine, so as to position a blank of the rear end cover and conveniently process one side of a flange surface.

The technical scheme adopted by the utility model for solving the technical problem is as follows: a machine tool fixture for an engine rear end cover, comprising:

a horizontally disposed mounting plate;

the two first corner cylinders are respectively fixed on the left side and the right side of the front end of the mounting plate; a piston rod of the first corner cylinder is arranged upwards, and a first pressing block is arranged on the piston rod;

the rod part of the first positioning screw rod extends backwards, and the first positioning screw rod is positioned between the two first corner cylinders;

the second corner cylinder is positioned right behind the first positioning screw rod, a piston rod of the second corner cylinder is arranged upwards, and a second pressing block is arranged on the second corner cylinder;

the two lateral positioning blocks are symmetrically arranged and fixed on the mounting plate at the left and right sides and are positioned at the rear side of the first corner cylinder at the left and right corresponding sides;

the positioning head is fixed on the mounting plate and is positioned right behind the lateral positioning block on the left and right corresponding sides; the positioning head extends towards the left inner side and the right inner side;

the second positioning screw rod extends left and right and the rod part is right opposite to the positioning head;

and a supporting nail is arranged right below the second pressing block and the first pressing block and is fixed on the mounting plate.

Preferably, the first positioning screw and the second positioning screw are respectively connected to a support in a threaded manner, and the support is fixed on the mounting plate.

Preferably, the first positioning screw and the second positioning screw are locked on the corresponding support through a locking nut; adjusting nuts are fixed on the heads of the first positioning screw rod and the second positioning screw rod.

Preferably, a bottom plate is arranged right below the mounting plate, the front end and the rear end of the bottom plate are fixedly connected with the mounting plate through vertical plates respectively, and the vertical plates extend along the left-right direction.

The machine tool clamp for the rear end cover of the engine can position the rear end cover blank on the machine tool to conveniently process one side of the flange surface in the OP10 process.

Drawings

FIG. 1 is a perspective view of a rear end cap in accordance with a preferred embodiment of the present invention;

FIG. 2 is a perspective view of another perspective of the rear end cap of a preferred embodiment of the present invention;

FIG. 3 is a perspective view of a machine tool fixture for an engine rear end cover in accordance with a preferred embodiment of the present invention;

FIG. 4 is a top rotational view of a machine tool fixture for an engine rear end cover in accordance with a preferred embodiment of the present invention;

FIG. 5 is a perspective view of a machine tool fixture for an engine rear end cover and a rear end cover blank 02 in accordance with a preferred embodiment of the present invention;

FIG. 6 is a top view of the machine tool fixture for the rear end cover of an engine and the combination of the rear end cover blank 02 of a preferred embodiment of the present invention in rotation;

description of reference numerals: 1. a base plate; 10. a second pressing block; 11. positioning the head; 12. a first positioning screw; 13. a support; 14. a second positioning screw; 15. locking the nut; 2. a vertical plate; 3. mounting a plate; 4. a lateral positioning block; 5. a first support pin; 6. a first corner cylinder; 7. a first pressing block; 8. a second support pin; 9. a second corner cylinder;

Detailed Description

The technical scheme of the utility model is clearly and completely described in the following with reference to the accompanying drawings. In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., 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, but 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 thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The utility model will be further explained with reference to the drawings.

Please refer to fig. 1 to fig. 6. The utility model discloses a machine tool fixture for a rear end cover of an engine, which comprises a bottom plate 1, a mounting plate 3, a first positioning screw 12, a second positioning screw 14, a positioning head 11, two lateral positioning blocks 4, two first corner cylinders 6 and one second corner cylinder 9.

Wherein, the mounting plate 3 is horizontally arranged, and a bottom plate 1 is arranged right below the mounting plate. The front end and the rear end of the bottom plate 1 are respectively fixedly connected with the mounting plate 3 through a vertical plate 2, and the bottom plate 1 is fixed on a machine tool. The vertical plate 2 extends in the left-right direction.

Two first corner cylinders 6 are fixed to the left and right sides of the front end of the mounting plate 3, respectively. The piston rod of the first corner cylinder 6 is arranged upwards and is provided with a first pressing block 7. The piston rod of the second corner cylinder 9 is arranged upwards and provided with a second pressing block 10, and the second corner cylinder 9 is positioned right behind the left middle part and the right middle part of the two first corner cylinders 6. A first supporting nail 5 is arranged right below one end of the first pressing block 7, which is far away from the first corner cylinder 6, and a second supporting nail 8 is arranged upward right below one end of the second pressing block 10, which is far away from the second corner cylinder 9. First support nail 5 and second support nail 8 all are fixed in on mounting panel 3 and set up.

The rod of the first positioning screw 12 extends rearward, which is located at the right and left middle of the two first corner cylinders 6, i.e., directly in front of the second corner cylinder 9.

The two lateral positioning blocks 4 are fixed on the mounting plate 3 in a left-right symmetrical arrangement. The lateral positioning block 4 is positioned at the rear side of the first corner cylinder 6 at the left and right corresponding sides.

The positioning head 11 is fixed to the mounting plate 3, and extends toward the left and right inner sides. The positioning head 11 is positioned right behind the lateral positioning block 4 on the left and right corresponding sides. The second positioning screw 14 extends left and right with its rod facing the positioning head 11.

The first positioning screw 12 and the second positioning screw 14 are each screwed to a support 13. The support 13 is fixed to the mounting plate 3. The first positioning screw 12 and the second positioning screw 14 are each locked to the corresponding support 13 by a lock nut 15. Adjusting nuts are fixed on the heads of the first positioning screw 12 and the second positioning screw 14.

In order to facilitate the clamping of the machine tool fixture, during the forming, the rear end cover blank may be formed with a second supporting protrusion 02b on each of the left and right outer edges of the connecting flange 012, and a first supporting protrusion 02a on the rear edge of the rectangular portion 019.

When the rear end cover blank is clamped, the two lateral positioning blocks 4 and the first positioning screw 12 are pressed against the outer side wall of the connecting table 013, so that the rear end cover blank 02 is centrally positioned; the positioning head 11 and the second positioning screw 14 are respectively pressed against the left side wall and the right side wall of the rectangular part 019 to prevent the rotation of the rear end cover blank 02, so that the complete positioning on the horizontal plane is realized; and finally, the rear end cover blank 02 is clamped through the supporting nails and the pressing blocks, specifically, the second pressing block 10 presses the rectangular part 019 downwards to the upper end of the second supporting nail 8, and the first pressing block 7 presses the connecting flange 012 downwards to the upper end of the first supporting nail 5. Since the first and second supporting

protrusions

02a and 02b have no influence on the use, they can remain to the end.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of the present invention, and these improvements and modifications should also be construed as the protection scope of the present invention.

Other parts of the utility model not described in detail are prior art and are not described in detail herein.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the utility model has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A machine tool fixture for an engine rear end cover, comprising:

a horizontally arranged mounting plate (3);

the two first corner cylinders (6), the two first corner cylinders (6) are respectively fixed on the left side and the right side of the front end of the mounting plate (3); a piston rod of the first corner cylinder (6) is arranged upwards, and a first pressing block (7) is arranged on the piston rod;

a first positioning screw rod (12) with a rod part extending backwards, wherein the first positioning screw rod (12) is positioned between the two first corner cylinders (6);

a second corner cylinder (9) positioned right behind the first positioning screw (12), wherein a piston rod of the second corner cylinder (9) is arranged upwards and is provided with a second pressing block (10);

the two lateral positioning blocks (4) are fixed on the mounting plate (3) in a bilaterally symmetrical arrangement mode, and the lateral positioning blocks (4) are positioned on the rear side of the first corner cylinder (6) on the left side and the right side corresponding to each other;

the positioning head (11) is fixed on the mounting plate (3), and the positioning head (11) is positioned right behind the lateral positioning block (4) on the left side and the right side; the positioning head (11) extends towards the left inner side and the right inner side;

a second positioning screw (14) which extends leftwards and rightwards and is provided with a rod part right opposite to the positioning head (11);

and a supporting nail is arranged right below the second pressing block (10) and the first pressing block (7) and fixed on the mounting plate (3).

2. The machine tool holder for the rear end cover of the engine as claimed in claim 1, wherein the first set screw (12) and the second set screw (14) are each screw-coupled to a support (13), the supports (13) being fixed to the mounting plate (3).

3. The machine tool holder for the rear end cover of the engine as claimed in claim 2, wherein the first positioning screw (12) and the second positioning screw (14) are each locked to the corresponding seat (13) by a lock nut (15); adjusting nuts are fixed on the heads of the first positioning screw rod (12) and the second positioning screw rod (14).

4. The machine tool fixture for the rear end cover of the engine as claimed in claim 1, wherein a bottom plate (1) is arranged right below the mounting plate (3), the front end and the rear end of the bottom plate (1) are fixedly connected with the mounting plate (3) through a vertical plate (2), and the vertical plate (2) extends in the left-right direction.