CN216178908U

CN216178908U - Positioning assembly for workpiece machining

Info

Publication number: CN216178908U
Application number: CN202122743263.XU
Authority: CN
Inventors: 屈占秋; 刘浩; 王晓刚; 朱鹏宇; 李永朋; 王文刚; 李兴启; 杨俊祥; 迟景才
Original assignee: FAW Jiefang Automotive Co Ltd
Current assignee: FAW Jiefang Automotive Co Ltd
Priority date: 2021-11-10
Filing date: 2021-11-10
Publication date: 2022-04-05
Anticipated expiration: 2031-11-10

Abstract

The utility model discloses a positioning assembly for workpiece machining, which belongs to the technical field of machining equipment. The positioning block body comprises a base and a positioning lug arranged on the base, and the upper surface of the positioning lug is a positioning surface; the lower surface of the cleaning air hole block is provided with a groove which can be clamped at one end of the positioning lug, the cleaning air hole block is clamped on the positioning lug through the groove in a sealing manner, the groove is provided with three side walls, the three side walls are all in sealing butt joint with the positioning lug, the top wall of the groove is sunken towards the upper surface of the cleaning air hole block to form an air collecting cavity, an air blowing hole communicated with the air collecting cavity is formed in the cleaning air hole block, an air inlet hole communicated with the air collecting cavity is formed in the positioning block, air flow can be blown to the positioning surface through the air inlet hole, the air collecting cavity and the air blowing hole in sequence, and the air inlet hole is configured to be connected with a first air source. The utility model can efficiently clean impurities on the positioning surface and ensure the processing quality of workpieces.

Description

Positioning assembly for workpiece machining

Technical Field

The utility model relates to the technical field of machining equipment, in particular to a positioning assembly for machining a workpiece.

Background

When the existing positioning block is used, after a workpiece is machined and the positioning block is detached, cutting scraps and cutting fluid are remained on the positioning surface of the positioning block. When a new workpiece to be machined is directly placed on the positioning surface, due to the existence of cutting chips and cutting fluid, the workpiece to be machined generates positioning deviation, and batch quality accidents are caused.

In the prior art, impurities on the positioning surface are generally cleaned manually, the manual cleaning operation is complicated, and particularly when the workpiece is placed on the positioning surface, an operator needs to remove the workpiece and clean the workpiece, so that the operation efficiency is low.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a positioning assembly for workpiece machining, which does not need to manually clean impurities on a positioning surface, improves the impurity cleaning efficiency and improves the workpiece machining quality.

As the conception, the technical scheme adopted by the utility model is as follows:

a positioning assembly for workpiece processing, comprising:

the positioning block body comprises a base and a positioning lug arranged on the base, and the upper surface of the positioning lug is a positioning surface;

the lower surface of the cleaning air hole block is provided with a groove which can be clamped at one end of the positioning lug, the cleaning air hole block is sealed and clamped on the positioning lug through the groove, the groove is provided with three side walls which are all in sealing butt joint with the positioning lug, the top wall of the groove faces towards the upper surface of the cleaning air hole block, a gas collection cavity is formed in the cleaning air hole block, a gas blowing hole communicated with the gas collection cavity is formed in the cleaning air hole block, an air inlet hole communicated with the gas collection cavity is formed in the positioning block body, and air flow can be blown to the positioning surface through the air inlet hole, the gas collection cavity and the gas blowing hole in sequence, and the air inlet hole is configured to be connected with a first air source.

Optionally, the air blowing hole is formed from the top wall of the groove towards the upper surface of the cleaning air hole block in a concave manner.

Optionally, the cross-sectional area of the blowing hole is gradually reduced along the outflow direction of the airflow.

Optionally, along the outflow direction of the air flow, the vertical size of the air blowing hole is gradually reduced, and the horizontal size of the air blowing hole is gradually increased.

Optionally, a plurality of air blowing holes are arranged on the cleaning air hole block at intervals.

Optionally, a sealing layer is disposed between the side wall of the groove and the positioning block body.

Optionally, the sealing layer is a rubber sheet attached to the side wall of the groove.

Optionally, the air intake hole comprises:

the inlet of the first section of hole is positioned on the side surface of the positioning lug;

and one end of the second section of hole is communicated with the first section of hole, and the other end of the second section of hole is communicated with the gas collection cavity.

Optionally, an airtight detection hole is further formed in the positioning block body, an outlet of the airtight detection hole is located on the positioning surface, and the airtight detection hole can blow air towards the workpiece.

Optionally, the air-tightness detection hole comprises:

the inlet of the third section of hole is positioned on the side surface of the positioning lug;

and one end of the fourth section of hole is communicated with the third section of hole, and the other end of the fourth section of hole is positioned on the positioning surface.

Optionally, the cleaning air hole block is locked on the positioning lug through a locking piece.

When the positioning assembly for processing the workpiece is used, the first air source is communicated with the air inlet hole, the first air source is opened to blow air into the air inlet hole, and the air flow is blown to the positioning surface through the air inlet hole, the air collecting cavity and the air blowing hole in sequence, so that impurities between the workpiece to be processed and the positioning surface on the positioning surface can be blown off. The clean gas hole piece passes through the sealed joint of recess on the locating convex block, and the roof of recess is sunken towards the upper surface of clean gas hole piece and forms the gas collection chamber for the air current can gather earlier in the gas collection chamber, guarantees that the air current that blows out from the blow hole is sufficient, and then guarantees that the air current that blows out from the blow hole can blow off smear metal and the cutting fluid between the work piece of treating processing and the locating surface on the locating surface. Blow to the locating surface through the clearance gas pocket piece, accomplish the clearance of impurity, the cleaning efficiency is high, and can fully guarantee the processingquality of work piece.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments of the present invention will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the contents of the embodiments of the present invention and the drawings without creative efforts.

FIG. 1 is a schematic view of a positioning assembly for workpiece processing provided by an embodiment of the present invention in use;

FIG. 2 is a front view of a positioning assembly for workpiece processing provided by an embodiment of the present invention;

FIG. 3 is a cross-sectional view of a positioning assembly for workpiece processing provided by an embodiment of the present invention;

FIG. 4 is a view of the cleaning vent block of FIG. 3 in the direction of A;

FIG. 5 is a cross-sectional view of section B-B of FIG. 4;

fig. 6 is a cross-sectional view of section C-C in fig. 4.

In the figure:

1. a positioning block body; 11. a base; 111. a positioning block body mounting hole; 12. positioning the bump; 13. an air inlet; 131. a first section of bore; 132. a second section of holes; 14. an air-tightness detection hole; 141. a third section of holes; 142. a fourth section of hole;

2. cleaning the air hole block; 21. a groove; 22. a gas collection cavity; 23. a gas blowing hole; 24. a locking member;

3. a sealing layer;

4. and (5) a workpiece.

Detailed Description

In order to make the technical problems solved, the technical solutions adopted and the technical effects achieved by the present invention clearer, the technical solutions of the present invention are further described below by way of specific embodiments with reference to the accompanying drawings. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting of the utility model. It should be further noted that, for the convenience of description, only some but not all of the elements associated with the present invention are shown in the 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 the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Wherein the terms "first position" and "second position" are two different positions.

In the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection or a removable 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.

Referring to fig. 1 to 6, the present embodiment provides a positioning assembly for workpiece machining, which can position a workpiece 4, and can prevent impurities such as chips or cutting fluid from existing between the workpiece 4 and a positioning surface before machining, thereby ensuring machining quality.

Specifically, in the present embodiment, the positioning assembly for workpiece processing includes a positioning block body 1 and a cleaning air hole block 2.

The positioning block body 1 comprises a base 11 and a positioning lug 12 arranged on the base 11, and the upper surface of the positioning lug 12 is a positioning surface.

The lower surface of clean gas pocket piece 2 is seted up can the joint in the recess 21 of 12 one ends of positioning lug, clean gas pocket piece 2 is through the sealed joint of recess 21 on positioning lug 12, recess 21 has three lateral wall, three lateral wall all with the sealed butt of positioning lug 12, the roof of recess 21 is sunken to form gas collection chamber 22 towards the upper surface of clean gas pocket piece 2, air hole 23 with gas collection chamber 22 intercommunication has been seted up in clean gas pocket piece 2, be provided with the inlet port 13 with gas collection chamber 22 intercommunication in the locating piece body 1, the air current can be in proper order via inlet port 13, gas collection chamber 22 and air hole 23 blow to the locating surface, inlet port 13 is configured to be connected with first air supply.

When the positioning assembly for workpiece machining provided by the embodiment is used, the first air source is communicated with the air inlet 13, the first air source is opened to blow air towards the interior of the air inlet 13, and the air flow blows towards the positioning surface through the air inlet 13, the air collection cavity 22 and the air blowing hole 23 in sequence, so that cuttings, cutting fluid and other impurities between a workpiece 4 to be machined and the positioning surface on the positioning surface can be blown off. The clean gas hole block 2 is clamped on the positioning lug 12 through the groove 21 in a sealing manner, the top wall of the groove 21 is sunken towards the upper surface of the clean gas hole block 2 to form a gas collecting cavity 22, so that gas flow can be accumulated in the gas collecting cavity 22 firstly, sufficient gas flow blown out from the gas blowing holes 23 is ensured, and then the gas flow blown out from the gas blowing holes 23 can blow off cuttings and cutting fluid between the workpiece 4 to be processed and the positioning surface on the positioning surface.

Specifically, in order to prevent air leakage from the air collecting cavity 22, in the present embodiment, a sealing layer 3 is disposed between the side wall of the groove 21 and the positioning block body 1. Optionally, the sealing layer 3 is a rubber sheet attached to the side wall of the groove 21.

Further, in order to ensure the working stability of the cleaning air hole block 2, in the present embodiment, the cleaning air hole block 2 is locked on the positioning projection 12 by the locking member 24. Specifically, retaining member 24 screw thread passes clean gas hole piece 2 until supporting sealing layer 3 tightly on location lug 12, so set up, guarantees that clean gas hole piece 2 locks on location lug 12, and can prevent gas collection chamber 22 gas leakage.

Further, a positioning block body mounting hole 111 is provided on the base 11 to mount the positioning block body 1 on the machine tool.

Preferably, the blow hole 23 is concavely formed from the top wall of the recess 21 toward the upper surface of the cleaning blow hole block 2 for the convenience of processing.

Alternatively, the sectional area of the blowhole 23 is gradually reduced in the outflow direction of the air current. So set up for along the outflow direction of air current, the velocity of flow of air current is faster and faster, fully guarantees that the air current that blows off from blow hole 23 can blow off smear metal and the cutting fluid between the work piece 4 of treating processing and the locating surface on the locating surface.

Preferably, in the present embodiment, along the outflow direction of the air flow, the vertical size of the air blowing hole 23 gradually decreases, and the horizontal size of the air blowing hole 23 gradually increases. So set up, guarantee that the lateral dimension from the exit end of blowhole 23 is great, and the swept area of the air current that blows out is great and the velocity of flow is very fast, blows away the impurity between work piece 4 and the locating surface fast.

Preferably, a plurality of air blowing holes 23 are arranged on the cleaning air hole block 2 at intervals, and each air blowing hole 23 is communicated with the air collecting cavity 22. Specifically, in the present embodiment, three blow holes 23 are provided in the cleaning air hole block 2.

Specifically, in the present embodiment, the air intake hole 13 includes a first-stage hole 131 and a second-stage hole 132.

The inlet of the first section of hole 131 is positioned at the side of the positioning lug 12, and the inlet of the first section of hole 131 is communicated with a first air source during operation; one end of the second section hole 132 is communicated with the first section hole 131, and the other end is communicated with the gas collection chamber 22.

Further, in the present embodiment, an air tightness detecting hole 14 is further provided in the positioning block body 1, an outlet of the air tightness detecting hole 14 is located on the positioning surface, and the air tightness detecting hole 14 can blow air toward the workpiece 4. Whether chips or other impurities exist between the workpiece 4 and the positioning surface is detected through the air tightness detection hole 14, and whether the cleaning air hole block 2 needs to be started is further determined.

Specifically, the airtightness detection hole 14 includes a third-stage hole 141 and a fourth-stage hole 142.

The inlet of the third section of hole 141 is positioned at the side of the positioning lug 12; one end of the fourth section of hole 142 is communicated with the third section of hole 141, and the other end is positioned on the positioning surface.

Further, the positioning assembly for workpiece processing further comprises a controller.

The locating component is used in the work piece processing that this embodiment provided, through being connected second air supply and airtight inspection hole 14, the second air supply is opened, the air current blows to work piece 4 on the locating surface via third section hole 141 and fourth section hole 142 in proper order, if there is impurity between work piece 4 and the locating surface, impurity can influence the laminating of the two, air leakage will appear at the exit end of airtight inspection hole 14, when the controller detected the air leakage volume and exceeded the settlement standard value, to the lathe signals, lathe automatic alarm, in order to remind that there is impurity between operator's work piece 4 and the locating surface and need the clearance. An operator controls a first air source communicated with the air inlet 13 to be started, air is blown through the air blowing holes 23 of the air hole cleaning block 2, and impurities existing between the workpiece 4 and the positioning surface are cleaned. The cleaning air hole block 2 automatically finishes the cleaning of impurities on the positioning surface, and is simple and convenient to operate and high in production efficiency.

Of course, the adhesion of the workpiece 4 to the positioning surface may also be detected by a pressure sensor. Can set up a pressure sensor mounting groove on the locating surface, pressure sensor sets up in the pressure sensor mounting groove of locating surface, and the pressure value that detects pressure sensor when the controller is less than normal pressure value, then explains that there is impurity between work piece 4 and the locating surface, reminds that there is impurity between operator's work piece 4 and the locating surface and needs the clearance.

The foregoing embodiments are merely illustrative of the principles and features of this invention, which is not limited to the above-described embodiments, but rather is susceptible to various changes and modifications without departing from the spirit and scope of the utility model, which changes and modifications are within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. A positioning assembly for workpiece processing, comprising:

the positioning block body (1) comprises a base (11) and a positioning lug (12) arranged on the base (11), wherein the upper surface of the positioning lug (12) is a positioning surface;

a cleaning air hole block (2), the lower surface of which is provided with a groove (21) which can be clamped at one end of the positioning convex block (12), the cleaning air hole block (2) is sealed and clamped on the positioning convex block (12) through the groove (21), the groove (21) has three side walls, all of which are in sealing abutment with the positioning lug (12), the top wall of the groove (21) is sunken towards the upper surface of the cleaning air hole block (2) to form an air collecting cavity (22), an air blowing hole (23) communicated with the air collecting cavity (22) is arranged in the cleaning air hole block (2), the positioning block is characterized in that an air inlet hole (13) communicated with the air collecting cavity (22) is formed in the positioning block body (1), air flow can blow towards the positioning surface through the air inlet hole (13), the air collecting cavity (22) and the air blowing hole (23) in sequence, and the air inlet hole (13) is configured to be connected with a first air source.

2. The positioning assembly for workpiece processing according to claim 1, wherein the gas blowing hole (23) is formed recessed from a top wall of the recess (21) toward an upper surface of the cleaning gas hole block (2).

3. The positioning assembly for workpiece processing according to claim 2, wherein the cross-sectional area of the blow hole (23) is gradually reduced in the outflow direction of the air flow.

4. The positioning assembly for workpiece processing according to claim 2, wherein the vertical dimension of the blowing hole (23) is gradually reduced and the lateral dimension of the blowing hole (23) is gradually increased along the outflow direction of the air flow.

5. The positioning assembly for processing the workpiece as recited in claim 1, wherein a plurality of the air blowing holes (23) are arranged on the cleaning air hole block (2) at intervals.

6. The positioning assembly for machining workpieces according to claim 1, characterized in that a sealing layer (3) is arranged between the side wall of the recess (21) and the positioning block body (1).

7. The positioning assembly for machining workpieces according to claim 6, characterized in that the sealing layer (3) is a rubber sheet attached to the side wall of the groove (21).

8. The positioning assembly for workpiece processing according to any of claims 1-7, wherein the air intake hole (13) comprises:

a first section of hole (131), the inlet of which is positioned at the side of the positioning lug (12);

and one end of the second section of hole (132) is communicated with the first section of hole (131), and the other end of the second section of hole is communicated with the gas collection cavity (22).

9. The positioning assembly for workpiece processing according to any of claims 1-7, characterized in that an air tightness detection hole (14) is further provided in the positioning block body (1), an outlet of the air tightness detection hole (14) is located on the positioning surface, and the air tightness detection hole (14) can blow air towards the workpiece (4).

10. The positioning assembly for workpiece processing according to claim 9, characterized in that said airtightness detection hole (14) comprises:

a third section of hole (141), the inlet of which is positioned at the side of the positioning lug (12);

and one end of the fourth section of hole (142) is communicated with the third section of hole (141), and the other end of the fourth section of hole is positioned on the positioning surface.

11. The positioning assembly for workpiece processing according to any of claims 1-7, characterized in that the cleaning gas hole block (2) is locked to the positioning lug (12) by a locking member (24).