CN215598262U

CN215598262U - Position tolerance detection device for bracket hole

Info

Publication number: CN215598262U
Application number: CN202121903785.5U
Authority: CN
Inventors: 诸卫东
Original assignee: Shanghai Xinpeng Metal Products Co ltd
Current assignee: Shanghai Xinpeng Metal Products Co ltd
Priority date: 2021-08-13
Filing date: 2021-08-13
Publication date: 2022-01-21
Anticipated expiration: 2031-08-13

Abstract

The utility model discloses a device for detecting the position tolerance of bracket holes, which is used for detecting the position between holes on a bracket part, the surface of a detection body is matched with the bracket part, at least one convex limiting block, at least one inclined shaft sleeve hole, two straight shaft sleeve holes, at least two positioning pin holes arranged near any straight shaft sleeve hole and two positioning tools are formed on the surface of the detection body, the positioning tools and the two straight shaft sleeve holes are distributed on two sides of the detection body in a one-to-one correspondence way, wherein, under the normal state, a first pin shaft and a second pin shaft are respectively arranged in the two straight shaft sleeve holes, the displacement of the bracket part in a first direction and a second direction is respectively limited by the first pin shaft and the second pin shaft, a hole go-no-go gauge is arranged in the inclined shaft sleeve hole, the space between the bracket part holes is ensured to be in a preset range by a mode of positioning before detection, the measurement cost is obviously saved, the detection process of the position tolerance of the bracket part holes is simplified, on the premise of ensuring the detection precision, the detection efficiency is improved.

Description

Position tolerance detection device for bracket hole

Technical Field

The utility model relates to the technical field of quality detection of punched products, in particular to a bracket hole position tolerance detection device for measuring the size between product holes.

Background

For the processing of specific parts and specific standard parts, special processing dies and stamping parts are generally required correspondingly to ensure the processing quality of products. In a specific part, the measurement accuracy of a processing module and a stamping part of the part also has a crucial influence on the quality of the part.

For example, fig. 1 shows a C669798 bracket component in a project of the prior art, and referring to fig. 1, three through holes with different positions are formed on the surface of the bracket component, and the openings of the through holes can be the same or different according to the design requirements, so that the dimensional relationship among the punched holes directly influences the quality of the final clinched product of the component. Because under prior art, the final finished product is configured and is pressed and riveted the utensil of examining, but lacks the utensil of examining of stamping workpiece. Therefore, the quality of the product, especially the position of the hole position of the stamping part is difficult to control, and corresponding detection equipment is lacked so as to ensure the opening size between the holes.

According to repeated tests and practices, the bracket part similar to the bracket part shown in fig. 1 has a tolerance of 0.2mm between the holes of the stamping part before and after the riveting rivet, so on the basis, in order to solve the technical problems, a three-coordinate measuring instrument is used for measuring the opening size between the holes, and although the problem of lack of measuring means is solved to a certain extent, the three-coordinate measuring instrument is lack of applicability in both measuring cost and measuring efficiency, and is difficult to apply to the detection of the position tolerance between the holes of the parts produced in large scale in batch.

In view of this, should improve prior art to solve the technical problem that the measurement cost is high, measurement efficiency is poor that prior art lower carriage part position between holes detects.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects of the prior art, the utility model provides the bracket hole position tolerance detection device which has a simplified structure, is easy to realize, can simplify the measurement process of the position tolerance between the holes of the bracket hole and improve the measurement efficiency.

In order to solve the above technical problem, the present invention provides a device for detecting a position tolerance of a bracket hole, the device being used for detecting a position between holes on a bracket part, the device comprising: the detection body is arranged on the surface of a substrate, the surface of the detection body is matched with the support part, at least one protrusion limiting block, at least one inclined shaft sleeve hole, two straight shaft sleeve holes and at least two positioning pin holes arranged close to any straight shaft sleeve hole are formed on the surface of the detection body, the positioning tool comprises a base body and a positioning part, the base body is fixedly connected with the substrate, the positioning part is fixedly connected with the top end face of the base body, the positioning tool and the two straight shaft sleeve holes are distributed on two sides of the detection body in a one-to-one correspondence mode, a first shaft sleeve and a second shaft sleeve are respectively arranged in the two straight shaft sleeve holes, a first pin shaft and a second pin shaft are respectively arranged in the first shaft sleeve and the second shaft sleeve, and the displacement of the support part in the first direction and the second direction is limited by the first pin shaft and the second pin shaft respectively, and a hole go-no go gauge is arranged in the inclined shaft sleeve hole.

Preferably, the positioning tool specifically comprises clamp seats, the clamp seats are fixedly connected with the base plate, each clamp seat is fixedly provided with a clamp, the clamps correspond to the straight shaft sleeve holes one by one, and when the support part is properly attached to the surface of the detection body, the clamps are in contact with the surface of the support part and are compressed.

Further preferably, the first pin shaft is a taper pin, the first pin shaft limits displacement of the bracket part in the first direction and the second direction, the second pin shaft is a diamond pin, and the second pin shaft limits rotation of the bracket part on a building plane in the first direction and the second direction.

Still further preferably, the tool further comprises a first go-no-go gauge and a second go-no-go gauge, wherein in a detection state, the first go-no-go gauge is inserted into the inclined shaft sleeve hole, and the second go-no-go gauge is inserted into the second shaft sleeve.

Still further preferably, the clamp is a CM-102B clamp.

Compared with the prior art, the utility model has the following beneficial technical effects due to the adoption of the technical scheme:

the utility model solves the technical problem by a mode of positioning first and then detecting. The positioning device comprises a positioning device, a clamp, a conical pin, a diamond pin, a clamp and a clamp, wherein the conical pin and the diamond pin are used for respectively limiting the translation of a product to be detected in a horizontal plane and the rotation of the product to be detected in the horizontal plane, and the clamp is distributed on two sides of the product to be detected to tightly press the surface of the product to be detected so as to finish the positioning process. And in the measuring process, different go-no-go gauges are inserted into corresponding shaft sleeve holes to finish the detection process. Therefore, the space between the holes of the support part is ensured to be within a preset range. The measurement mode of the prior art through a three-coordinate measuring instrument is replaced, the measurement cost is obviously saved, more importantly, the detection process of the position tolerance between holes of the support part is simplified, and the detection efficiency is improved on the premise of ensuring the detection precision.

Drawings

FIG. 1 is a schematic view showing the structure of a prior art lower C669798 stand component;

FIG. 2 is a schematic view illustrating a structure of a substrate in the holder hole position tolerance detecting device according to a preferred embodiment of the present invention;

FIG. 3 is a schematic view showing the structure of the detecting body in the preferred embodiment of the present invention;

FIG. 4 is an exploded view showing the exploded structure of the bracket hole position tolerance detecting device according to the preferred embodiment of the present invention;

fig. 5 is a state diagram showing an assembly state of the bracket hole position tolerance detecting device shown in fig. 4.

Detailed Description

An embodiment of a bracket hole position tolerance detecting device according to the present invention will be described below with reference to the accompanying drawings. Those of ordinary skill in the art will recognize that the described embodiments can be modified in various different ways, without departing from the spirit and scope of the present invention. Accordingly, the drawings and description are illustrative in nature and not intended to limit the scope of the claims. Furthermore, in the present description, the drawings are not to scale and like reference numerals refer to like parts.

It should be noted that, in the embodiments of the present invention, the expressions "first" and "second" are used to distinguish two entities with the same name but different names or different parameters, and it is understood that "first" and "second" are only used for convenience of description and should not be understood as limitations of the embodiments of the present invention, and the following embodiments do not describe the embodiments one by one.

The utility model is provided aiming at the technical problems of high cost and high detection difficulty of the inter-hole position tolerance detection of the lower bracket part in the prior art. The idea of the preferred embodiment of the present invention to solve the technical problem includes:

1) since many parts are iron standard parts in the stamping process and have respective specific shapes and contours, referring back to fig. 1, fig. 1 shows a specific bracket part, the primary reason for the high detection difficulty is that a proper workpiece is lacked, and the detection and positioning are performed according to the specific shape structure of the bracket part;

2) even if the problem of positioning of the parts can be solved, the detection after positioning is not completed by an effective means.

Naturally, the present invention needs to solve both the positioning and the detection problems. In the preferred embodiment of the utility model, through the idea of positioning and then detecting, the detection body and the positioning tool are configured on the substrate, the positioning of the product to be detected is completed through the positioning tool and the corresponding component, and then the detection process is completed by inserting the detection tool into the counter bore.

Referring to fig. 2 and 3, fig. 2 is a schematic view illustrating a structure of a substrate in a holder hole position tolerance detecting apparatus according to a preferred embodiment of the present invention, and fig. 3 is a schematic view illustrating a structure of a detecting body according to the preferred embodiment of the present invention. The device for detecting the position tolerance of the hole of the bracket comprises a detection body and a positioning tool, wherein the substrate is a base member for bearing the detection body and the positioning tool, as shown in fig. 2, the substrate 100 is a long straight flat plate member, a plurality of fixing screw holes 101 are formed on the surface of the substrate 100 according to the display directions of fig. 2 and 3, the screw holes are distributed on two sides and the central position of the surface of the substrate 100, and the fixing screw holes 101 are used for fixing the detection body and the positioning tool. On the other hand, it is a common practice to arrange handles 102 on both side end faces of the substrate 100 so that the inspection apparatus is easy to pick up and move.

The structure of the detection body 200 is shown in fig. 3. Referring back to fig. 1, a bracket component 300 shown in fig. 1 is an integral structure formed by splicing irregular curved surfaces, and is provided with positioning holes 301 and recessed portions 302 on the surface. On the curved surfaces of both sides of the recess 302, a first through hole 303 and a second through hole 304 are formed, respectively, and a third through hole 305 is formed in the recess 302. For the positioning of the holder part shown in fig. 1, a corresponding detection body needs to be configured. Referring to fig. 3, the surface of the detection body 200 is an irregular curved surface configured to match the bottom surface of the support member 300, and also forms a protrusion limiting block 201, an inclined shaft sleeve hole 202, and two straight shaft sleeve holes 203.

Specifically, the outline shape of the protrusion limiting block 201 is consistent with the positioning hole 301 on the bracket component 300, when the bracket component is placed on the surface of the detection body 200, the positioning hole on the surface of the bracket component 300 should be sleeved with the protrusion limiting block 201, and since the surface pattern of the detection body 200 is consistent with the bottom pattern of the bracket component 300, the bracket component 300 can be matched and positioned with the surface of the detection body 200. The two straight shaft sleeve holes 203 correspond to the first through hole 303 and the second through hole 304 on the surface of the support component 300, that is, when the support component 300 covers the surface of the detection body 200, the first through hole 303 and the second through hole 304 correspond to the two straight shaft sleeve holes 203 respectively to form a through long straight channel. The function of the long straight channel will be described below and will not be described in detail. With continued reference to fig. 3, a raised platform 204 is formed in the middle of the two straight shaft sleeve holes 203, the surface of the platform 204 is inclined and is also consistent with the bottom surface of the central depression 302 of the bracket 300, that is, when the bracket 300 is covered on the detection body 200, the depression 302 of the bracket 300 is covered on the platform of the detection body 200, meanwhile, a third through hole 305 is formed on the platform 204, and the third through hole 305 should correspond to the inclined shaft sleeve hole 202 and form a through channel when the two are assembled.

With continued reference to fig. 3, in addition to the above structure, the detecting body 200 is further provided with two positioning pin holes 205 at positions close to the left straight boss hole 203. Referring again to fig. 4 and 5, fig. 4 is an exploded view showing an exploded structure of the bracket hole position tolerance detecting apparatus according to the preferred embodiment of the present invention, and fig. 5 is a state diagram showing an assembled state of the bracket hole position tolerance detecting apparatus shown in fig. 4. Referring to the exploded view, before the bracket component 300 is placed in the detection body 200, the first shaft sleeve 206 and the second shaft sleeve 207 are respectively disposed in the two straight shaft sleeve holes 203, the oblique shaft sleeve 208 is disposed in the oblique shaft sleeve hole 202, and the first pin shaft 400 and the second pin shaft 500 are respectively inserted into the first shaft sleeve 206 and the second shaft sleeve 207. Specifically, in the preferred embodiment of the present invention, the first pin 400 is a tapered pin inserted into the first sleeve 206 on the left side of the surface of the detection platform, the tapered pin has a large top and a small bottom, and when the support component 300 is placed on the surface of the detection body 200, the first pin 400 can limit the displacement of the support component in the first direction and the second direction; the second pin 500 is a diamond-shaped pin, which is inserted into the second bushing 207 on the right side of the surface of the detecting body 200, and can limit the rotation of the bracket component on the first direction and the second direction building plane. In this embodiment, the first direction is an extending direction of the surface of the detection body, and the second direction is a direction perpendicular to the first direction in the surface of the detection body. However, as mentioned above, the surface of the inspection main body 200 is configured to be consistent with the part to be processed, and in different preferred embodiments of the present invention, the first direction and the second direction may not be perpendicular to each other, but it should be understood that the plane formed by the first direction and the second direction should be the extending direction of the contact surface of the inspection main body 200 and the product to be tested.

And more specifically the dowel holes 205. Referring to fig. 3 to 5, before the bracket component is placed on the inspection platform, in addition to the first and second pins, two positioning pins 700 are inserted into the positioning pin holes 205, and the first pin and the second pin, as well as the two positioning pins, are pressed against the through holes and the pin holes where the two pins are respectively located. Before the bracket parts are placed, the first pin shaft 400 and the second pin shaft 500 are inserted into the first shaft sleeve 206 and the second shaft sleeve 207 and then further extend out to form a long and straight extension part, and the positioning pin 700 slightly extends out of the positioning pin hole 205. Thus, when the frame component 300 is placed on the detecting body 2, the first through hole 303 of the frame component 300 is sleeved on the extending portion of the first pin 400, the second through hole 304 is sleeved on the extending portion of the second pin 500, and the two positioning pins 700 contact and abut against the bottom surface of the frame component.

Say again and fix a position frock. With continued reference to fig. 4 to 5, the positioning tools are two positioning members disposed on two sides of the detecting body 200, and after the bracket component is placed on the detecting platform, the positioning tools are used for pressing the bracket component and the surface of the detecting platform. As shown in fig. 4, in the preferred embodiment, two positioning tools are included on two sides of the detecting body 200, and each positioning tool is composed of a clamp seat 801 and a clamp 802 disposed on the clamp seat 801. The clamp holder 801 is a long straight column, and a butt hole (not shown) fixed to the fixing screw hole 101 of the substrate 100 is formed on one side end face of the column body, and a connecting hole fixed to the clamp 802 is formed on the other side end face, and the clamp 802 and the clamp holder 801 are fixed by a screw or a bolt. In this embodiment, the clamp 802 is a CM-102B clamp, and after the bracket component is placed on the detection platform, the clamping ends of the clamps 802 on the two sides are controlled to respectively contact and abut against the surface of the bracket component, and at the same time, the extending portions of the first pin 400 and the second pin 500 are respectively located inside the jaws of the clamps 802 on the two sides.

Thus, the structure of the inspection tool is described. With continued reference to fig. 4 and 5, during actual detection, after the bracket part is placed on the detection platform, the second pin shaft 500 is firstly pulled out, then the square hole go-no-go gauge 600 is inserted into the inclined shaft sleeve hole 202, and the other long straight circular hole go-no-go gauge 900 is inserted into the straight shaft sleeve hole 203, if both the square hole go-no-go gauge 600 and the circular hole go-no-go gauge 900 can smoothly pass through the through hole, the position tolerance between the holes of the product is qualified.

The above examples only show some embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. 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 carrier hole position tolerance detection device for detecting an inter-hole position on a carrier part, the detection device comprising:

the detection body is arranged on the surface of the substrate, the surface of the detection body is matched with the bracket part, at least one protrusion limiting block, at least one inclined shaft sleeve hole, two straight shaft sleeve holes and at least two positioning pin holes which are arranged close to any straight shaft sleeve hole are formed on the surface of the detection body,

two positioning tools, the positioning tools comprise a seat body and a positioning piece, the seat body is fixedly connected with the substrate, the positioning piece is fixedly connected with the top end surface of the seat body, the positioning tools and the two straight shaft sleeve holes are distributed on two sides of the detection body in a one-to-one correspondence manner,

in a normal state, a first shaft sleeve and a second shaft sleeve are respectively arranged in the two straight shaft sleeve holes, a first pin shaft and a second pin shaft are respectively arranged in the first shaft sleeve and the second shaft sleeve, the displacement of the support part in the first direction and the second direction is limited by the first pin shaft and the second pin shaft respectively, and a hole go-no go gauge is arranged in the inclined shaft sleeve hole.

2. The device for detecting the positional tolerance of the bracket hole according to claim 1, wherein the positioning tool specifically comprises a clamp base, the clamp base is fixedly connected with the base plate, each clamp base is fixedly provided with a clamp, the clamps correspond to the straight shaft sleeve holes one by one, and when the bracket part is properly fitted to the surface of the detection body, the clamps are pressed with the surface of the bracket part in a contact manner.

3. The apparatus according to claim 2, wherein the first pin is a tapered pin, the first pin limits the displacement of the frame member in the first and second directions, the second pin is a diamond pin, and the second pin limits the rotation of the frame member in the first and second directions forming a plane.

4. The bracket hole position tolerance detection device according to claim 3, further comprising a first go-no-go gauge and a second go-no-go gauge, wherein,

and in a detection state, the first go-no-go gauge is inserted into the inclined shaft sleeve hole, and the second go-no-go gauge is inserted into the second shaft sleeve.

5. The bracket hole position tolerance detection device of claim 4, wherein the clamp is a CM-102B clamp.