CN216208010U

CN216208010U - Workpiece detection jig

Info

Publication number: CN216208010U
Application number: CN202122621378.1U
Authority: CN
Inventors: 安国清
Original assignee: Wuxi Anerda Machinery Co ltd
Current assignee: Wuxi Anerda Machinery Co ltd
Priority date: 2021-10-29
Filing date: 2021-10-29
Publication date: 2022-04-05
Anticipated expiration: 2031-10-29

Abstract

The utility model discloses a workpiece detection jig, which comprises: the body comprises a detection surface, wherein detection holes are formed in the detection surface along a first direction, and the first direction is vertical to the detection surface; an accommodating groove is formed in the hole wall on one side of the detection hole, one end of the accommodating groove penetrates to the detection surface, a connecting hole is formed in the hole wall on one side, opposite to the accommodating groove, of the detection hole in a penetrating mode along a second direction perpendicular to the first direction, one end of the connecting hole is communicated with the detection hole, and the other end of the connecting hole penetrates to the side surface of the body; the workpiece is accommodated in the accommodating groove, and the end face of the workpiece is flush with the detection surface; and the fastening screw is in threaded connection with the connecting hole, one end of the fastening screw penetrates through the connecting hole to extend into the detection hole and abuts against and fixes the workpiece in the accommodating groove. The utility model does not need to cast test bars specially, saves a large amount of test bar casting, reduces the detection cost and improves the authenticity and reliability of the analysis and detection result.

Description

Workpiece detection jig

Technical Field

The utility model relates to the technical field of detection, in particular to a workpiece detection jig.

Background

The conventional method for analyzing and detecting the material of the casting product comprises the following steps: the test bar for detection is specially cast while the product is cast, the quality of the product material mainly refers to the detection result of the test bar, and the analysis and detection mode for casting large pieces is more suitable. However, due to the particularity of casting of the piston ring material, in order to improve the casting quality, a single casting mode is adopted, the product is small in size and light in weight, rapid cooling is needed in the casting process, the rapidly cooled product is high in hardness and good in wear resistance, if a test bar is made, the weight is heavy, the cooling speed is slow, the hardness of the test bar is low, the metallographic structure is changed, and the detected result only represents the test bar result and is not the real material condition of the product.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a workpiece detection jig which can save a large amount of test bar casting, reduce the detection cost and improve the authenticity and reliability of analysis and detection results.

Therefore, one technical scheme adopted by the utility model is to provide a workpiece detection jig, which comprises:

the body comprises a detection surface, wherein detection holes are formed in the detection surface along a first direction, and the first direction is perpendicular to the detection surface; an accommodating groove is formed in the hole wall of one side of the detection hole, one end of the accommodating groove penetrates through the detection surface, a connecting hole is formed in the hole wall of one side, opposite to the accommodating groove, of the detection hole in a penetrating mode along a second direction perpendicular to the first direction, one end of the connecting hole is communicated with the detection hole, and the other end of the connecting hole penetrates through the side surface of the body;

the workpiece is accommodated in the accommodating groove, and the end face of the workpiece is flush with the detection surface;

and the fastening screw is in threaded connection with the connecting hole, one end of the fastening screw penetrates through the connecting hole to extend into the detection hole and abuts against and fixes the workpiece in the accommodating groove.

In one embodiment of the present invention, the receiving groove has a rectangular cross section.

In an embodiment of the present invention, the body further includes a back surface opposite to the detection surface, the back surface is provided with an avoidance hole along the first direction, the avoidance hole and the detection hole are coaxially disposed and are communicated with each other, and a sum of a radius of the detection hole and a height of the accommodation groove is smaller than a radius of the avoidance hole.

In an embodiment of the utility model, an avoiding groove is further formed in the side surface of the body, the avoiding groove and the connecting hole are coaxially arranged and are communicated with each other, and the diameter of the avoiding groove is larger than that of the connecting hole.

The utility model has the advantages that:

different from the prior art, by applying the technical scheme of the utility model, when in actual use, a workpiece is placed in the accommodating groove, one end of the workpiece extends out of the detection surface, and then the workpiece is fixed in the accommodating groove through the fastening screw, so that the workpiece is prevented from shaking; before detection, one end of the workpiece extending out of the detection surface is ground to be flush with the detection surface, and then the workpiece and the body are placed on a metallographic examination polishing machine together to polish the detection surface; during detection, the polished detection surface is horizontally placed on the lower surface of a metallographic microscope upwards for metallographic analysis or the polished detection surface is horizontally placed on a Rockwell hardness machine upwards, and a detection pressure head is used for downwards pressurizing to detect the hardness of the material. Therefore, special test bars do not need to be cast, a large amount of test bar casting is saved, the detection cost is reduced, and the authenticity and the reliability of analysis and detection results are improved.

Drawings

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

Fig. 1 is a schematic structural diagram of a workpiece inspection tool according to an embodiment of the utility model;

fig. 2 is a schematic sectional view taken along line a-a of fig. 1.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the utility model.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

Referring to fig. 1-2, a workpiece detection fixture provided in an embodiment of the present invention includes a body 1, a workpiece 2, and a fastening screw 3. The body 1 comprises a detection surface a, wherein detection holes 11 are formed in the detection surface a along a first direction, and the first direction is vertical to the detection surface a; an accommodating groove 12 is formed in the hole wall of one side of the detection hole 11, one end of the accommodating groove 12 penetrates through the detection surface a, a connecting hole 13 is formed in the hole wall of one side, opposite to the accommodating groove 12, of the detection hole 11 and penetrates through the detection surface a along a second direction perpendicular to the first direction, one end of the connecting hole 13 is communicated with the detection hole 11, and the other end of the connecting hole 13 penetrates through the side surface of the body 1; the workpiece 2 is accommodated in the accommodating groove 12, and the end surface of the workpiece 2 is flush with the detection surface a; the fastening screw 3 is in threaded connection with the connecting hole 13, and one end of the fastening screw 3 penetrates through the connecting hole 13 to extend into the detection hole 11 and presses and fixes the workpiece 2 in the accommodating groove 12.

The first direction is the left-right direction shown in fig. 2, and the second direction is the up-down direction shown in fig. 2.

When the workpiece detection jig is in actual use, the workpiece 2 is placed in the accommodating groove 12, one end of the workpiece 2 extends out of the detection surface a, and then the workpiece 2 is fixed in the accommodating groove 12 through the fastening screw 3, so that the workpiece 2 is prevented from shaking; before detection, one end of the workpiece 2 extending out of the detection surface a is ground to be flush with the detection surface a, and then the workpiece 2 and the body 1 are placed on a metallographic examination polishing machine together to polish the detection surface a; during detection, the polished detection surface a is placed upwards and horizontally below a metallographic microscope for metallographic analysis, or the polished detection surface a is placed upwards and horizontally on a Rockwell hardness machine, and a detection pressure head is used for downwards pressurizing to detect the hardness of the material. Therefore, special test bars do not need to be cast, a large amount of test bar casting is saved, the detection cost is reduced, and the authenticity and the reliability of analysis and detection results are improved.

In the embodiment of the present invention, the cross section of the accommodating groove 12 is rectangular. Thus, the fastening screw 3 is convenient for pressing and fixing the workpiece 2 in the accommodating groove 12.

In the embodiment of the present invention, the body 1 further includes a back surface b opposite to the detection surface a, the back surface b is provided with an avoidance hole 14 along the first direction, the avoidance hole 14 and the detection hole 11 are coaxially disposed and are communicated with each other, and a sum of a radius of the detection hole 11 and a height of the accommodation groove 12 is smaller than a radius of the avoidance hole 14. So, when work piece 2 is longer, the one end of work piece 2 can stretch to in dodging the hole 14 and even pass from dodging the hole 14 and stretch out back b, because the radius of inspection hole 11 and the high sum of holding tank 12 are less than the radius of dodging the hole 14, work piece 2 only local and holding tank 12 butt, avoid work piece 2 unevenness and lead to work piece 2 and holding tank 12 to fix insecurely.

In the embodiment of the utility model, the side surface of the body 1 is further provided with an avoiding groove 15, the avoiding groove 15 and the connecting hole 13 are coaxially arranged and are communicated with each other, and the diameter of the avoiding groove 15 is larger than that of the connecting hole 13. Thus, one end of the fastening screw 3, which is far away from the workpiece 2, can be accommodated in the avoiding groove 15 without protruding out of the side surface of the body 1, so that the overall appearance of the workpiece detection jig is improved, and the influence of the fastening screw 3 protruding out of the side surface of the body 1 on the detection work of the workpiece 2 is avoided.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A workpiece detection jig is characterized by comprising:

2. The tool of claim 1, wherein the cross-section of the receiving groove is rectangular.

3. The workpiece detection jig according to claim 1, wherein the body further comprises a back surface opposite to the detection surface, the back surface is provided with avoidance holes along the first direction, the avoidance holes and the detection holes are coaxially arranged and communicated with each other, and the sum of the radius of the detection holes and the height of the accommodating groove is smaller than the radius of the avoidance holes.

4. The workpiece detection jig according to claim 1, wherein an avoiding groove is further formed in the side surface of the body, the avoiding groove and the connecting hole are coaxially arranged and are communicated with each other, and the diameter of the avoiding groove is larger than that of the connecting hole.