CN218329713U

CN218329713U - Center distance detection device and measuring equipment

Info

Publication number: CN218329713U
Application number: CN202221886595.1U
Authority: CN
Inventors: 苏永彬; 高鑫
Original assignee: Guangdong Haorui Measurement And Control Equipment Co ltd
Current assignee: Guangdong Haorui Measurement And Control Equipment Co ltd
Priority date: 2022-07-20
Filing date: 2022-07-20
Publication date: 2023-01-17
Anticipated expiration: 2032-07-20

Abstract

The utility model particularly discloses a center distance detection device and a measuring device, wherein the center distance detection device comprises a bottom plate, a positioning part and a measuring part, the positioning part is arranged on the bottom plate, and the positioning part is provided with a first positioning pin extending along the direction away from the bottom plate; the measuring part is arranged on the bottom plate and is provided with a mobile platform which is in sliding connection with the bottom plate, a second positioning pin which corresponds to the first positioning pin is arranged at one end, close to the positioning part, of the mobile platform, a measuring instrument is connected at one end, far away from the positioning part, and the mobile platform moves along the connecting line direction of the first positioning pin and the second positioning pin. The utility model discloses can turn into the centre-to-centre spacing of piece that awaits measuring through the relative movement volume with first locating pin and second locating pin, realize the accurate detection to the centre-to-centre spacing of piece that awaits measuring, and testing process easy operation is swift, and the commonality is higher, is applicable to various scenes, and easy using widely greatly has reduced the cost.

Description

Center distance detection device and measuring equipment

Technical Field

The utility model relates to a measuring equipment technical field, in particular to centre-to-centre spacing detection device and measuring equipment.

Background

In two common parts with an assembly relationship, positioning pin holes are usually arranged, and whether the center distance between the two pin holes is qualified or not directly influences the assembly result of the two parts. Therefore, when producing parts, it is necessary to control whether the center distance of such holes meets the use requirements.

In the prior art, a fixed pin center distance measuring tool, a pneumatic calibration center distance measuring tool or a three-coordinate measuring machine is usually adopted for measurement, however, the prior art has the defects of low measurement precision, high measurement environment requirement, difficulty in popularization and practicability, high cost and the like.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a centre-to-centre spacing detection device that measurement accuracy is high, compatible high.

According to a first aspect of the present invention, there is provided a center distance detecting device, comprising a bottom plate, a positioning portion and a measuring portion, wherein the positioning portion is disposed on the bottom plate, and the positioning portion is provided with a first positioning pin extending in a direction away from the bottom plate; the measuring part is arranged on the bottom plate, the measuring part is provided with a mobile platform which is connected with the bottom plate in a sliding manner, one end, close to the positioning part, of the mobile platform is provided with a second positioning pin corresponding to the first positioning pin, one end, far away from the positioning part, of the mobile platform is connected with a measuring instrument, and the mobile platform moves along the connecting line direction of the first positioning pin and the second positioning pin.

Preferably, a fixing piece fixedly connected to the bottom plate is arranged between the moving platform and the bottom plate, connecting portions extending towards the bottom plate are respectively arranged on two sides of the moving platform, a cavity for arranging the fixing piece is formed by the connecting portions and the bottom plate, and the connecting portions are slidably connected with the fixing piece.

Preferably, a pressing piece is arranged between the connecting part and two sides of the fixing part facing the connecting part, the pressing piece is back to one end of the bottom plate, and/or an installation column used for being connected with the moving platform is arranged at one end facing the connecting part.

Preferably, the pressing part orientation one side of mounting is equipped with first recess, the inner wall center department of first recess is equipped with first guide way, the mounting be equipped with the second recess that first recess corresponds, the inner wall center department of second recess be equipped with the second guide way that first guide way corresponds, first guide way with be equipped with the slide between the second guide way, the slide is followed first guide way with the second guide way slides, be equipped with the trompil on the slide, be equipped with in the trompil along first recess, and the rolling ball of second recess.

Preferably, the bottom plate is provided with a mounting block for fixing the measuring instrument.

Preferably, one side of the mounting block, which faces the moving platform, is provided with a reset mechanism for pushing the moving platform to move so as to reset the second positioning pin.

Preferably, the bottom plate is provided with a table top plate for placing a piece to be tested, the table top plate is provided with an opening through which the first positioning pin and the second positioning pin penetrate, and the inner wall of the opening is arranged at intervals between the first positioning pin and the second positioning pin.

Preferably, first locating pin with the second locating pin all is equipped with a plurality of archs that are used for with the pore wall butt of piece that awaits measuring, and is a plurality of interval sets up between the arch.

Preferably, the bottom plate is provided with a placing seat for placing a standard component, and the standard component is used for correcting the distance between the first positioning pin and the second positioning pin.

According to the utility model discloses a second aspect provides a measuring equipment, include the utility model discloses the centre-to-centre spacing detection device is disclosed to the first aspect.

According to the utility model discloses center-to-center distance detection device has following beneficial effect at least:

the embodiment of the utility model provides a through setting up fixed first locating pin, and set up on moving platform, the second locating pin that first locating pin removed relatively turns into the centre-to-centre spacing that awaits measuring through the relative movement volume with first locating pin and second locating pin, realizes the accurate detection to the centre-to-centre spacing of awaiting measuring, and testing process easy operation is swift, and the commonality is higher, is applicable to various scenes, and easy using widely greatly has reduced the cost.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The invention will be further described with reference to the following drawings and examples, in which:

fig. 1 is a schematic view of an embodiment of a center distance detecting device according to the present invention;

fig. 2 is a schematic view of another embodiment of the center distance detecting device of the present invention;

fig. 3 is a schematic view of an embodiment of a measuring portion in a center distance detecting device according to the present invention;

fig. 4 is an exploded view of an embodiment of a measuring portion of a center distance detecting device according to the present invention;

fig. 5 is an exploded view of another embodiment of the measuring part of the center distance measuring device according to the present invention;

fig. 6 is a schematic view of an embodiment of a positioning pin in the center distance detection device of the present invention.

Reference numerals are as follows:

a center distance detection device 100; a base plate 110; a first positioning pin 120; a fixing member 130; a mobile platform 140; a second positioning pin 150; a meter 160; a connecting portion 141; a pressing member 170; a mounting post 171; a first recess 172; a first guide groove 1721; a second groove 131; a second guide groove 1311; a slide plate 180; an opening 181; a mounting block 190; a reset mechanism 200; a deck plate 210; an elastic portion 220; a standard 230; a seat 240 is placed.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship referred to, for example, the upper, lower, inner, outer, etc., is the orientation or positional relationship shown on the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.

In the description of the present invention, if there are first and second descriptions for distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the precedence of the indicated technical features.

In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.

As is well known, the center distance of positioning pin holes of two parts with an assembly relationship can directly influence the assembly effect of the two parts, and in the prior art, a checking fixture for detecting the center distance usually has the defects of low measurement precision, high measurement environment requirement, difficulty in popularization and practicality and the like.

To this end, some embodiments of the present invention provide a center distance detecting device 100, which is specifically shown in fig. 1 to 6 of the attached drawings.

Referring to fig. 1-2, a schematic diagram of an embodiment of the center distance detecting device 100 is shown, in the embodiment of the present invention, the center distance detecting device 100 includes a bottom plate 110, a positioning portion and a measuring portion, the positioning portion is disposed on the bottom plate 110, and the positioning portion is provided with a first positioning pin 120 extending in a direction away from the bottom plate 110; the measuring part is arranged on the bottom plate 110, the measuring part is provided with a moving platform 140 which is in sliding connection with the bottom plate 110, one end of the moving platform 140, which is close to the positioning part, is provided with a second positioning pin 150 which corresponds to the first positioning pin 120, one end of the moving platform 140, which is far away from the positioning part, is connected with a measuring instrument 160, and the moving platform 140 moves along the connecting line direction of the first positioning pin 120 and the second positioning pin 150.

It should be noted that, in the embodiment of the present invention, a platform may be disposed between the first positioning pin 120 and the bottom plate 110, so that the first positioning pin 120 and the second positioning pin 150 may be located at the same height. The first positioning pin 120 may be inserted into two pin holes to be measured, respectively, the first positioning pin 120 is fixed, and the second positioning pin 150 may horizontally move away from or close to the first positioning pin 120 according to the positions of the pin holes. The second positioning pin 150 moves through the movable platform 140 slidably connected to the bottom plate 110, and the measuring instrument 160 connected to the movable platform 140 is acted by the movable platform 140, so that the horizontal displacement of the second positioning pin 150 on the movable platform 140 can be detected, and the center distance between the two pin holes can be measured. It can be understood that, in order to make the measuring instrument 160 connected to the mobile platform 140 accurately measure the displacement of the second positioning pin 150, in the embodiment of the present invention, the mobile platform 140 can move along the connection line direction of the first positioning pin 120 and the second positioning pin 150, based on this, the displacement of the second positioning pin 150 can be directly converted into the displacement of the mobile platform 140, and the measuring instrument 160 can directly obtain the displacement of the second positioning pin 150.

In the embodiment of the present invention, the measuring apparatus 160 may be a digital display measuring apparatus, or may be other types of measuring apparatuses, and the technical personnel in the field can select and use according to the actual situation, and the embodiment of the present invention does not limit this. The embodiment of the present invention provides a first positioning pin 120 and a second positioning pin 150, which can be cylindrical pins or other taper pins, and the skilled in the art can select the pin holes according to the piece to be tested, and the embodiment does not limit the pin holes.

The embodiment of the utility model provides a through setting up fixed first locating pin 120, and set up on moving platform 140, the second locating pin 150 that first locating pin 120 removed relatively, the relative movement amount through first locating pin 120 and second locating pin 150 represents the centre-to-centre spacing of piece that awaits measuring, the accurate detection to the centre-to-centre spacing of piece that awaits measuring has been realized, and it is simple swift to detect the flow, the commonality is higher, be applicable to various scenes, easy using widely, the cost is greatly reduced.

Referring to fig. 2-3, a schematic diagram of an embodiment of the center distance detecting device 100 and a schematic diagram of an embodiment of the measuring part of the present invention are shown, in an embodiment of the present invention, a fixing member 130 fixedly connected to the bottom plate 110 is disposed between the mobile platform 140 and the bottom plate 110, connecting portions 141 extending toward the bottom plate 110 are respectively disposed on two sides of the mobile platform 140, the connecting portions 141 and the bottom plate 110 form a cavity for disposing the fixing member 130, and the connecting portions 141 and the fixing member 130 are slidably connected.

It can be understood that, in order to limit the moving direction of the moving platform 140 to be consistent with the connecting line direction of the first positioning pin 120 and the second positioning pin 150, in the embodiment of the present invention, the fixing member 130 may be set between the moving platform 140 and the bottom plate 110, the fixing member 130 may be fixedly connected to the bottom plate 110, and the setting direction of the fixing member 130 may be consistent with the connecting line direction of the first positioning pin 120 and the second positioning pin 150. The connecting portions 141 on both sides of the movable platform 140 and the bottom plate 110 are wrapped together to form a cavity, the fixing element 130 can be disposed in the cavity, and the connecting portions 141 can be slidably connected to both sides of the fixing element 130, that is, the connecting portions 141 can move along the fixing element 130, so that the moving direction of the movable platform 140 is consistent with the connecting line direction of the first positioning pin 120 and the second positioning pin 150, and the measurement result detected by the measuring instrument 160 is more accurate.

Referring to fig. 2, in the embodiment of the present invention, a pressing member 170 is disposed between the connecting portion 141 and two sides of the fixing member 130 facing the connecting portion 141, and one end of the pressing member 170 facing away from the bottom plate 110 and/or one end facing the connecting portion 141 is provided with a mounting post 171 for connecting with the mobile platform 140.

In order to realize the detection of the center distance with high accuracy, in the embodiment of the present invention, a pressing member 170 may be disposed between the connecting portion 141 and the fixing member 130, referring to fig. 5, which shows an explosion diagram of the embodiment of the measuring portion in the center distance detecting device 100 of the present invention, and the pressing member 170 may be fixedly connected to the moving platform 140 through the mounting post 171. It can be understood that, in the embodiment of the present invention, the pressing member 170 is fixed relative to the moving platform 140, that is, the moving platform 140 can be slidably connected to the fixing member 130 through the pressing member 170, and the pressing member 170 and the moving platform 140 move along the fixing member 130 together. In this embodiment, the pressing member 170 may press the fixing member 130, so as to reduce an error caused by a gap of the sliding connection, and improve the accuracy of the direction of the moving platform 140 sliding along the fixing member 130, thereby increasing the accuracy of the center distance measurement.

Referring to fig. 3-4, illustrating a schematic view and an explosion view of an embodiment of a measuring portion in the center distance detecting device 100 of the present invention, in the embodiment of the present invention, the pressing member 170 is provided with a first groove 172 toward one side of the fixing member 130, the inner wall center of the first groove 172 is provided with a first guide groove 1721, the fixing member 130 is provided with a second groove 131 corresponding to the first groove 172, the inner wall center of the second groove 131 is provided with a second guide groove 1311 corresponding to the first guide groove 1721, a sliding plate 180 is provided between the first guide groove 1721 and the second guide groove 1311, the sliding plate 180 slides along the first guide groove 1721 and the second guide groove 1311, the sliding plate 180 is provided with an opening 131181, the opening 131181 is provided with a ball along the first groove 172, and the second groove 131 rolls.

It can be understood that, in order to realize the low error conversion of the displacement of the second positioning pin 150 into the displacement of the movable platform 140, in the embodiment of the present invention, a first groove 172 may be disposed on one side of the pressing member 170 facing the fixing member 130, a first guide groove 1721 may be disposed at the center of the inner wall of the first groove 172, the fixing member 130 may be disposed with a second groove 131 corresponding to the first groove 172, a second guide groove 1311 corresponding to the first guide groove 1721 may be disposed at the center of the inner wall of the second groove 131, the sliding plate 180 may be set between the first guide groove 1721 and the second guide groove 1311, and the sliding plate 180 may move along the first guide groove 1721 and the second guide groove 1311, so as to realize the orientation of the sliding platform and the pressing member 170 along the sliding direction of the fixing member 130, thereby improving the accuracy of the direction of the movable platform 140 when sliding along the fixing member 130. Further, the sliding plate 180 can be provided with an opening 181, a ball (not shown in the figure) can be arranged in the opening 181, and the ball can be respectively abutted to the inner walls of the first groove 172 and the second groove 131, that is, the pressing piece 170 and the fixing piece 130 can be slidably connected through the ball, so that the gap error between the pressing piece 170 and the fixing piece 130 is reduced, and the possibility of error caused by sliding of the sliding platform along the fixing piece 130 is greatly reduced.

The embodiment of the utility model provides a slide through slide 180 in first guide way 1721 and second guide way 1311 is directional, and the rethread ball realizes sliding platform and compresses tightly piece 170 along the roll of first recess 172 with second recess 131, slides along the high degree of accuracy of mounting 130, reduces the error that sliding connection's clearance brought, has improved the accuracy of centering apart from measuring greatly.

Referring to fig. 5, in an embodiment, the width direction of the pressing members 170 may be respectively provided with a baffle, and the baffle may limit the moving range of the baffle, that is, the baffle may limit the moving platform 140 to slide only in a limited range. Further, the top end of the fixing member 130 may be provided with a limit screw, the sliding platform may be provided with a limit groove corresponding to the limit screw, and the inner wall of the limit groove and the limit screw may be spaced apart from each other, so as to limit the moving range of the moving platform 140.

Referring to fig. 1-2, in the embodiment of the present invention, the bottom plate 110 is provided with a mounting block 190 for fixing the measuring instrument 160.

It is understood that, in order to fix the measuring instrument 160, a fixing block may be provided on the base plate 110 at a position corresponding to the measuring instrument 160, and a clamping portion for clamping the measuring instrument 160 may be provided on the fixing block.

Referring to fig. 1-2, in the embodiment of the present invention, a reset mechanism 200 for pushing the moving platform 140 to move so as to reset the second positioning pin 150 is disposed on one side of the mounting block 190 facing the moving platform 140.

It can be understood that, in the embodiment of the present invention, after the mobile platform 140 slides away from or close to the positioning portion, it needs to be restored to the initial state for the next measurement, based on this, the mounting block 190 is fixedly connected to the bottom plate 110, the reset mechanism 200 can be disposed between the mounting block 190 and the mobile platform 140, and the reset mechanism 200 can move the mobile platform 140 to the initial position, so as to reset the second positioning pin 150. In the embodiment of the present invention, a return spring may be adopted, and an elastic arm or other components that can perform a return function may also be adopted, which is not limited in this embodiment.

Referring to fig. 1, a table board 210 for placing a to-be-tested object is disposed on the bottom plate 110, the table board 210 is provided with an opening for the first positioning pin 120 and the second positioning pin 150 to pass through the table board 210, and an inner wall of the opening is spaced from the first positioning pin 120 and the second positioning pin 150.

It can be understood that, in order to measure the pin control of the piece to be measured conveniently, the embodiment of the present invention can provide the table panel 210 for placing the piece to be measured, the table panel 210 is provided with the first positioning pin 120, and the position of the second positioning pin 150 can be provided with the opening respectively, so that the first positioning pin 120 and the second positioning pin 150 pass through the table panel 210. The inner wall of the opening may be spaced apart from the first and second positioning pins 120 and 150 by a certain distance, and in particular, the size of the opening may be larger than that of the positioning pin so that the second positioning pin 150 has a space for movement.

Referring to fig. 6, it is shown that an embodiment of the positioning pin in the center distance detecting device 100 of the present invention is illustrated, in an embodiment of the present invention, the first positioning pin 120 and the second positioning pin 150 are both provided with a plurality of protrusions for abutting against the hole wall of the piece to be measured, and the plurality of protrusions are spaced from each other.

The embodiment of the utility model provides an in, first locating pin 120 and second locating pin 150 can be equipped with a plurality of archs, and the circumference interval setting can be followed to the arch, and the arch can with the pinhole inner wall butt of the piece that awaits measuring to the realization is to the location of pinhole. The bulge can be made by elastic steel, and when the bulge inserted the round pin accuse, pinhole inner wall extrusion arch, the bulge has improved the stability of being connected with the pinhole with pinhole interference fit under the effect of elastic force.

Referring to fig. 1, in the embodiment of the present invention, the bottom plate 110 is provided with a placing seat 240 for placing the standard member 230, and the standard member 230 is used for correcting the distance between the first positioning pin 120 and the second positioning pin 150.

It should be noted that, in the embodiment of the present invention, the measurement principle of the center distance detecting device 100 is a comparative measurement, and based on this, the placing seat 240 may be disposed on the bottom plate 110, and the standard component 230 may be disposed on the placing seat 240. The user can use the standard part 230 zero calibration earlier when measuring, namely through emboliaing first locating pin 120 and second locating pin 150 with the standard part 230 in, rectify first locating pin 120 and second locating pin 150's distance, measure the pinhole of the piece that awaits measuring again, make measuring process very convenient and fast, easy operation.

The embodiment of the utility model also provides a measuring equipment, including the centre-to-centre spacing detection device 100 of above-mentioned embodiment.

The embodiments of the present invention are described in detail above with reference to the accompanying drawings, and 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; although the present invention has been described in detail with reference to the foregoing embodiments, it should 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; such modifications and substitutions do not depart from the spirit and scope of the present invention in its various embodiments.

Claims

1. A center-to-center distance detecting device, comprising:

a base plate;

the positioning part is arranged on the bottom plate and provided with a first positioning pin extending in the direction away from the bottom plate;

the measuring part is arranged on the bottom plate and is provided with a moving platform which is connected with the bottom plate in a sliding manner, one end, close to the positioning part, of the moving platform is provided with a second positioning pin corresponding to the first positioning pin, one end, far away from the positioning part, of the moving platform is connected with a measuring instrument, and the moving platform moves along the direction of a connecting line of the first positioning pin and the second positioning pin.

2. The apparatus of claim 1, wherein a fixing member is disposed between the movable platform and the bottom plate, the fixing member is fixedly connected to the bottom plate, two sides of the movable platform are respectively provided with a connecting portion extending toward the bottom plate, the connecting portion and the bottom plate form a cavity for disposing the fixing member, and the connecting portion is slidably connected to the fixing member.

3. The center distance detecting device according to claim 2, wherein a pressing member is disposed between the connecting portion and the fixing member on both sides facing the connecting portion, and an end of the pressing member facing away from the bottom plate and/or an end facing the connecting portion is provided with a mounting post for connecting with the movable platform.

4. The center distance detecting device according to claim 3, wherein a first groove is formed in a side of the pressing member facing the fixing member, a first guide groove is formed in a center of an inner wall of the first groove, a second groove corresponding to the first groove is formed in the fixing member, a second guide groove corresponding to the first guide groove is formed in a center of an inner wall of the second groove, a sliding plate is arranged between the first guide groove and the second guide groove, the sliding plate slides along the first guide groove and the second guide groove, an opening is formed in the sliding plate, and a ball rolling along the first groove and the second groove is arranged in the opening.

5. The apparatus as claimed in claim 1, wherein the bottom plate is provided with a mounting block for fixing the measuring instrument.

6. The center distance detection device as claimed in claim 5, wherein a reset mechanism for pushing the moving platform to move so as to reset the second positioning pin is provided on a side of the mounting block facing the moving platform.

7. The center distance detection device according to claim 1, wherein a table board for placing a to-be-detected member is provided on the bottom plate, the table board is provided with an opening for the first positioning pin and the second positioning pin to pass through the table board, and an inner wall of the opening is spaced from the first positioning pin and the second positioning pin.

8. The center distance detection device according to claim 1, wherein each of the first positioning pin and the second positioning pin is provided with a plurality of protrusions for abutting against a hole wall of a workpiece to be detected, and the plurality of protrusions are arranged at intervals.

9. The center distance detecting device according to claim 1, wherein the bottom plate is provided with a placing seat for placing a standard member, and the standard member is used for correcting the distance between the first positioning pin and the second positioning pin.

10. A measuring apparatus characterized by comprising the center-distance detecting device according to any one of claims 1 to 9.