CN112504055A - Flexible positioning checking fixture - Google Patents
Flexible positioning checking fixture Download PDFInfo
- Publication number
- CN112504055A CN112504055A CN202011341359.7A CN202011341359A CN112504055A CN 112504055 A CN112504055 A CN 112504055A CN 202011341359 A CN202011341359 A CN 202011341359A CN 112504055 A CN112504055 A CN 112504055A
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- positioning
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/08—Measuring arrangements characterised by the use of mechanical techniques for measuring diameters
- G01B5/12—Measuring arrangements characterised by the use of mechanical techniques for measuring diameters internal diameters
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The invention provides a flexible positioning checking fixture, which comprises a bearing seat and a flexible positioning mechanism, wherein an accommodating groove is formed in the bearing seat, the accommodating groove can be used for placing a part to be detected, a positioning hole of the part can be aligned with a pin hole formed in a positioning seat, a positioning piece is inserted into the positioning hole of the part, a cylindrical guide section of the positioning piece can penetrate through the positioning hole and then be inserted into the pin hole, a detection section can be partially inserted into the positioning hole, and the positioning piece is stably inserted into the pin hole and is stably matched with the part until the diameter of the detection section is the same as that of the positioning hole of the part; to the part that has the error in locating hole aperture, need not be with changing new locating pin, only need the degree of depth of adjustment setting element in the pinhole, just can make the detection section and the locating hole of setting element cooperate completely to be connected, avoided the risk that the locating pin is lost, increased the convenient and accurate degree of detection of examining the utensil, possessed fine practicality.
Description
Technical Field
The invention relates to the technical field of inspection instruments, in particular to a flexible positioning inspection device.
Background
In the detection process of a part product, the part product needs to be positioned on the detection tool, positioning holes are usually machined in the part product for positioning, but the hole diameter of each positioning hole in each part is different within an allowable tolerance range. The positioning pins of the existing checking fixture are all made into cylindrical pins, and the sizes of the cylindrical pins are fixed. Positioning holes with different diameters are usually replaced by positioning pins with different diameters. It has the following drawbacks: firstly, different positioning pins are easy to lose in the process of losing and replacing, parts cannot be positioned after the positioning pins are lost, so that the checking fixture cannot be used, the parts can be used after the positioning pins are recovered, and the project detection and debugging period is greatly influenced; and secondly, the aperture of the part has tolerance, even if the part is a matched positioning pin, the part can have tolerance fit clearance during positioning, and the numerical value of the tolerance fit clearance can directly influence the numerical value of a detection result of the part with relatively strict part products.
Disclosure of Invention
In view of this, a need exists for a flexible positioning checking fixture, which is used to solve the problems that a plurality of positioning pins in the conventional checking fixture are easy to lose and the size of the positioning pin is fixed, so that a gap difference is easily caused for detection.
The invention provides a flexible positioning checking fixture, which comprises:
the bearing seat is fixed on a working plane, an accommodating groove is formed in the end face, deviating from the working plane, of the bearing seat, and a notch is formed in the tail end of the accommodating groove;
the flexible positioning mechanism is arranged at the tail end of the bearing seat and comprises a positioning seat and a positioning piece, a pin hole is formed in the positioning seat, the positioning piece comprises a guide section and a detection section, the guide section is cylindrical, the detection section is in a circular truncated cone shape, the guide section is coaxially fixed on the small end face of the detection section, and the guide section is operatively inserted into the pin hole.
Optionally, the flexible positioning mechanism further comprises a pressing part, the pressing part comprises a supporting piece, a connecting plate and a pressing frame, the supporting piece is fixed on one side, away from the bearing seat, of the positioning seat, the supporting piece is fixedly connected with one end of the connecting plate, the other end of the connecting plate faces the positioning seat, and the pressing frame is fixed on the other end of the connecting plate.
Optionally, the pressing frame is Y-shaped and is divided into a long rod section and a fork head, the long rod section is fixed at the other end of the connecting plate, the fork head faces the positioning piece, and the positioning piece is arranged in the middle of the fork head in an operable manner.
Optionally, the positioning element further includes a handle segment coaxially fixed on the large end surface of the detection segment.
Optionally, the positioning element further includes an aperture detection end, the aperture detection end is coaxially fixed at one end of the handle section, which is away from the detection section, and the diameter of the detection section is the same as that of the large end face of the detection section.
Optionally, an embedding hole is further formed in the positioning seat, the embedding hole is also in a circular truncated cone shape, the pin hole is coaxially formed in a small end face of the embedding hole, and the detection section is partially operatively inserted into the embedding hole.
Optionally, the accommodating groove forms two notches at the head end of the bearing seat; utensil is examined in flexible positioning still includes pressure head detection mechanism, pressure head detection mechanism sets up in the head end that bears the seat, including the support, press and decide piece and two detection round pins, the one end of pressing and deciding the piece rotates and connects in the one end that the support deviates from the work plane, the other end orientation that presses and decides the piece bears the seat, two detection round pins are installed respectively on the support of pressing and deciding a both sides, two round pin axle perpendicular to work plane that detect the round pin, the sense terminal that two detection round pins arranged respectively in the outside of two notches of holding tank formation at the head end that bears the seat.
Optionally, the pressure head detection mechanism further comprises two rotating pressing blocks, the two rotating pressing blocks are respectively rotatably connected to the support and respectively located above the two detection pins, and the axes of the rotating shafts of the two rotating pressing blocks are perpendicular to the detection pins.
Optionally, each rotating pressing block is cylindrical, and the circumferential surface of the rotating pressing block is operably abutted to the corresponding detection pin.
The invention has the beneficial effects that:
according to the flexible positioning checking fixture, the bearing seat is provided with the accommodating groove, the accommodating groove can be used for placing a part to be detected, the positioning hole of the part can be aligned to the pin hole formed in the positioning seat, the positioning piece is inserted into the positioning hole of the part, the cylindrical guide section of the positioning piece can penetrate through the positioning hole and then be inserted into the pin hole, the detection section can be partially inserted into the positioning hole, and the positioning piece is stably inserted into the pin hole and is stably matched with the part until the diameter of the detection section is the same as that of the positioning hole of the part; to the part that has the error in locating hole aperture, need not be with changing new locating pin, only need the degree of depth of adjustment setting element in the pinhole, just can make the detection section and the locating hole of setting element cooperate completely to be connected, avoided the risk that the locating pin is lost, increased the convenient and accurate degree of detection of examining the utensil, possessed fine practicality.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a perspective view of a part to be inspected according to a first embodiment of the present invention;
FIG. 2 is a perspective view of a flexible positioning fixture in accordance with a first embodiment of the present invention;
FIG. 3 is a perspective view of a flexible positioning mechanism in accordance with a first embodiment of the present invention;
FIG. 4 is a perspective view of a positioning element according to a first embodiment of the present invention;
fig. 5 is a perspective view of an indenter detection mechanism in a first embodiment of the present invention.
Detailed Description
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate preferred embodiments of the invention and together with the description, serve to explain the principles of the invention and not to limit the scope of the invention.
It will be understood that, although the terms first, second, etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another.
Example one
Referring to fig. 2 to 5, the flexible positioning detection tool disclosed in this embodiment includes a bearing seat 1, a flexible positioning mechanism 2, and a pressure head detection mechanism 3. The bearing seat 1, the flexible positioning mechanism 2 and the pressure head detection mechanism 3 are all mounted on the fixed base plate 4, that is, the fixed base plate 4 is used for forming a working plane for supporting the bearing seat 1, the flexible positioning mechanism 2 and the pressure head detection mechanism 3. The fixed bottom plate 4 can be a workpiece which is produced and installed in cooperation with the bearing seat 1, the flexible positioning mechanism 2 and the pressure head detection mechanism 3, and can also be a workbench which is implemented independently.
Referring to fig. 1 again, the part 5 to be detected in this embodiment is a special-shaped part, the whole part 5 to be detected is in a curved Y shape, and the part 5 to be detected is in a thin plate shape and is easy to deform, so that the use of the part is greatly affected by the distance, angle and tolerance of each hole of the part 5 to be detected.
Then, the bearing seat 1 of this embodiment is fixed to the working plane, the bearing seat 1 is used for bearing the part 5 to be detected, an accommodating groove 51 is formed on the end surface of the bearing seat 1 departing from the working plane, and the shape of the accommodating groove 51 is adapted to the shape of the part 5 to be detected. It should be noted that when the part 5 to be detected is in other shapes, the receiving groove 51 can be made in other shapes. In the present embodiment, a notch is formed at the tail end of the carrier 1, and the receiving groove 51 is formed at the head end of the carrier 1 to correspond to three ends of the Y-shaped part 5 to be detected. Wherein, the outer side of the notch at the tail end is correspondingly provided with a flexible positioning mechanism 2, and the notch at the head end is correspondingly provided with a pressure head detection mechanism 3.
Further, the flexible positioning mechanism 2 of the present embodiment includes a positioning seat 21 and a positioning member 22. The positioning seat 21 of this embodiment is provided with a pin hole, and the pin hole is used for aligning a positioning hole of the to-be-detected part 5, so that the to-be-detected part 5 can be positioned by the positioning member 22 conveniently.
The positioning member 22 of the present embodiment includes a guiding section 221, a detecting section 222, a handle section 223 and an aperture detecting end 224. Wherein the guiding section 221 and the detecting section 222 are mainly used for positioning the part 5 to be detected. Specifically, the guiding section 221 is cylindrical, the detecting section 222 is truncated cone-shaped, the guiding section 221 is coaxially fixed on the small end surface of the detecting section 222, and the guiding section 221 is operatively inserted into the pin hole. When a part to be detected is placed on a tool, the positioning hole of the part is communicated with the pin hole formed in the positioning seat 21, the positioning piece 22 is inserted into the positioning hole of the part, the cylindrical guide section 221 of the positioning piece 22 penetrates through the positioning hole and then is inserted into the pin hole, the detection section 222 is partially inserted into the positioning hole, and the positioning piece 22 is stably inserted into the pin hole and is stably matched with the part until the diameter of the detection section 222 is the same as that of the positioning hole of the part; for parts with errors in the aperture of the positioning hole, the detection section 222 of the positioning piece 22 can be completely matched and connected with the positioning hole only by adjusting the depth of the positioning piece 22 in the pin hole without replacing a new positioning pin, so that the risk of losing the positioning pin is avoided, and the convenience and accuracy of detection of the detection tool are increased.
Further, the handle segment 223 is used to remove the positioning member 22 after the inspection is completed, so as to release the fixed part. Then, the handle segment 223 is coaxially fixed on the large end surface of the detecting segment 222 so as to pull out the positioning member 22 by grasping the handle segment 223 with a hand. The aperture detection end 224 is coaxially fixed at one end of the handle section 223 away from the detection section 222, and the diameter of the detection section 222 is the same as that of the large end face of the detection section 222. The diameter of the aperture detection end 224 is the diameter of the maximum allowable error of the pilot hole. That is, the aperture of the positioning hole is not allowed to pass through the aperture detection end 224, the size of the positioning hole can be detected by the aperture detection end 224, and the size of the positioning hole is within the allowable range, which means that the size of the positioning hole is the same as the reference for detecting the component. Similarly, the diameter of the smallest allowable error of the aperture of the positioning hole is the same as the small end face of the detection section 222, and when the size of the positioning hole is too small, the detection section 222 cannot be directly passed through for positioning.
Furthermore, the positioning seat 21 is further provided with an embedding hole, the embedding hole is also in a circular truncated cone shape, the pin hole is coaxially formed in a small end face of the embedding hole, and the detection section 222 is partially inserted into the embedding hole in an operable manner. That is, when the detection is not performed, the positioning member 22 can be directly inserted into the pin hole and the insertion hole through the positioning member 22, and the positioning member 22 is prevented from being lost.
Furthermore, the flexible positioning mechanism 2 for a detection tool further includes a pressing portion 23, the pressing portion 23 includes a supporting member 231, a connecting plate 232 and a pressing frame 233, the supporting member 231 is fixed to one side of the positioning seat 21, one end of the connecting plate 232 is fixedly connected to the supporting member 231, the other end of the connecting plate 232 faces the positioning seat 21, and the pressing frame 233 is fixed to the other end of the connecting plate 232. In this embodiment, the pressing frame 233 is Y-shaped, the pressing frame 233 is divided into a long rod section and a fork head, the long rod section is fixed at the other end of the connecting plate 232, the fork head faces the positioning member 22, and the positioning member 22 is operatively disposed in the middle of the fork head. Of course, the shape of the pressing frame 233 can also be set according to the requirements of the actual pressing part 23.
Further, the indenter detection mechanism 3 of the present embodiment is disposed at the head end of the carrier 1, and includes a support 31, a pressing member 32, two detection pins 33, and two rotation pressing blocks 34. The support 31 is a general term for a member for supporting the pressing member 32, the two detection pins 33, and the two rotating pressing members 34. It is easily understood that the pressing member 32, the two detecting pins 33 and the two rotating pressing pieces 34 may be disposed on one integral large support 31, or may be disposed on a plurality of small supports 31, respectively, to facilitate the positioning of the pressing member 32, the two detecting pins 33 and the two rotating pressing pieces 34 at desired positions. Then, one end of the pressing member 32 is rotatably connected to the end of the support 31 departing from the working plane, and the other end of the pressing member 32 faces the bearing seat 1. The pivoting web of the press member 32 can pivot relative to the support 31 to control the position of the press member. And the pressing plate can press the part 5 to be detected under the rotating action of the rotating connecting plate. Because after the tail end of the part 5 to be detected is fixed by the pressing part 23 of the flexible positioning mechanism 2, the head end of the part 5 to be detected can be warped due to the deformation, and the warping does not affect the use of the part, the part 5 to be detected can be pressed by the pressing part 32, so that the part 5 to be detected is attached to the accommodating groove 51, each hole position of the part 5 to be detected reaches a designated position, and the error between the hole positions can be measured conveniently. The two detection pins 33 of the present embodiment are respectively installed on the support 31 at both sides of the pressing member 32, the pin shafts of the two detection pins 33 are perpendicular to the working plane, and the detection ends of the two detection pins 33 are respectively arranged at the outer sides of the two notches formed at the head end of the bearing seat 1 by the accommodation groove 51. That is, the two detection pins 33 are used for detecting whether the sizes between the two holes at the head end of the part 5 to be detected and the positioning hole meet the requirements, and the diameters and the positions of the holes can be judged according to the position relationship between the two detection pins 33 and the holes. The two rotating pressing blocks 34 are respectively and rotatably connected to the support 31 and respectively located above the two detecting pins 33, and the axes of the rotating shafts of the two rotating pressing blocks 34 are perpendicular to the detecting pins 33. Each of the rotating pressing pieces 34 is cylindrical, and the circumferential surface of the rotating pressing piece 34 is operatively abutted against the corresponding detecting pin 33. And the rotating pressing block 34 can adaptively press the part 5 to be detected in the rotating process, so that the pressing piece 32 is convenient to clamp.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are also included in the scope of the present invention.
Claims (9)
1. A flexible positioning detection tool is characterized by comprising:
the bearing seat is fixed on a working plane, an accommodating groove is formed in the end face, deviating from the working plane, of the bearing seat, and a notch is formed in the tail end of the accommodating groove;
the flexible positioning mechanism is arranged outside a notch at the tail end of the bearing seat and comprises a positioning seat and a positioning piece, a pin hole is formed in the positioning seat, the positioning piece comprises a guide section and a detection section, the guide section is cylindrical, the detection section is in a circular truncated cone shape, the guide section is coaxially fixed on a small end face of the detection section, and the guide section is operationally inserted into the pin hole.
2. The flexible positioning detection tool according to claim 1, wherein the flexible positioning mechanism further comprises a pressing portion, the pressing portion comprises a supporting member, a connecting plate and a pressing frame, the supporting member is fixed to one side of the positioning seat, which faces away from the bearing seat, one end of the connecting plate is fixedly connected with the supporting member, the other end of the connecting plate faces the positioning seat, and the pressing frame is fixed to the other end of the connecting plate.
3. The flexible positioning mechanism for the testing fixture according to claim 2, wherein the pressing frame is Y-shaped, the pressing frame is divided into a long rod section and a fork head, the long rod section is fixed at the other end of the connecting plate, the fork head faces the positioning member, and the positioning member is operatively arranged in the middle of the fork head.
4. The flexible positioning detection tool according to claim 1, wherein the positioning member further comprises a handle section coaxially fixed to the large end surface of the detection section.
5. The flexible positioning mechanism for the detection tool according to claim 4, wherein the positioning element further comprises an aperture detection end, the aperture detection end is coaxially fixed at one end of the handle section, which is far away from the detection section, and the diameter of the detection section is the same as that of the large end face of the detection section.
6. The flexible positioning detection tool according to any one of claims 1 to 5, wherein the positioning seat is further provided with an insertion hole, the insertion hole is also in a circular truncated cone shape, the pin hole is coaxially formed in a small end face of the insertion hole, and the detection section is partially inserted into the insertion hole in an operable manner.
7. The flexible positioning detection tool according to any one of claims 1 to 5, wherein the receiving groove forms two notches at the head end of the bearing seat, the flexible positioning detection tool further comprises a pressure head detection mechanism, the pressure head detection mechanism is disposed at the head end of the bearing seat and comprises a support, a pressing member and two detection pins, one end of the pressing member is rotatably connected to one end of the support, which is away from the working plane, the other end of the pressing member faces the bearing seat, the two detection pins are respectively mounted on the support at two sides of the pressing member, pin shafts of the two detection pins are perpendicular to the working plane, and detection ends of the two detection pins are respectively disposed outside the two notches formed at the head end of the bearing seat by the receiving groove.
8. The flexible positioning detection tool according to claim 7, wherein the pressure head detection mechanism further comprises two rotating pressing blocks, the two rotating pressing blocks are respectively and rotatably connected to the support and respectively located above the two detection pins, and the axes of the rotating shafts of the two rotating pressing blocks are perpendicular to the detection pins.
9. The flexible positioning gauge of claim 8, wherein each of the rotating compacts is cylindrical, and a circumferential surface of the rotating compact is operable to abut a corresponding one of the detection pins.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011341359.7A CN112504055A (en) | 2020-11-25 | 2020-11-25 | Flexible positioning checking fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011341359.7A CN112504055A (en) | 2020-11-25 | 2020-11-25 | Flexible positioning checking fixture |
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| Publication Number | Publication Date |
|---|---|
| CN112504055A true CN112504055A (en) | 2021-03-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011341359.7A Pending CN112504055A (en) | 2020-11-25 | 2020-11-25 | Flexible positioning checking fixture |
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| CN (1) | CN112504055A (en) |
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| GB1467105A (en) * | 1974-04-23 | 1977-03-16 | Samefa Ab | Centering apparatus for wheel axles |
| KR20070030621A (en) * | 2005-09-13 | 2007-03-16 | 주식회사 에스비알 | Screw type screw hole formation and depth inspection device |
| CN2890837Y (en) * | 2006-03-20 | 2007-04-18 | 重庆宗申技术开发研究有限公司 | Motorcycle right tripod inspection tool |
| CN201687822U (en) * | 2010-05-31 | 2010-12-29 | 广东鸿特精密技术股份有限公司 | Novel type positioning pin |
| CN203857897U (en) * | 2014-05-14 | 2014-10-01 | 浙江正邦汽车模具有限公司 | Detection device of automobile seat slide rail support |
| CN105928431A (en) * | 2016-04-19 | 2016-09-07 | 浙江陆虎汽车有限公司 | Tool for inspecting automotive engine room assembly hole |
| CN207439293U (en) * | 2017-11-28 | 2018-06-01 | 安徽江淮汽车集团股份有限公司 | A kind of subframe cubing |
| CN108253863A (en) * | 2018-01-22 | 2018-07-06 | 四川正梁机械有限公司 | Upper piece cubing in a kind of automobile front axle crossbeam |
| CN207976096U (en) * | 2018-01-22 | 2018-10-16 | 四川正梁机械有限公司 | A kind of trailing wheel installation board mount detection device |
| CN208383012U (en) * | 2018-07-05 | 2019-01-15 | 珠海市春生五金工业有限公司 | Vehicle steering wheel decoration detection device |
| CN208833151U (en) * | 2018-07-19 | 2019-05-07 | 四川正梁机械有限公司 | A kind of automobile front axle upper left cubing |
| CN209371938U (en) * | 2019-02-21 | 2019-09-10 | 珠海市春生五金工业有限公司 | Vehicle steering wheel inside gadget detection device |
| CN213515350U (en) * | 2020-11-25 | 2021-06-22 | 东风（武汉）汽车零部件有限公司 | Flexible positioning mechanism for checking fixture |
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2020
- 2020-11-25 CN CN202011341359.7A patent/CN112504055A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1467105A (en) * | 1974-04-23 | 1977-03-16 | Samefa Ab | Centering apparatus for wheel axles |
| KR20070030621A (en) * | 2005-09-13 | 2007-03-16 | 주식회사 에스비알 | Screw type screw hole formation and depth inspection device |
| CN2890837Y (en) * | 2006-03-20 | 2007-04-18 | 重庆宗申技术开发研究有限公司 | Motorcycle right tripod inspection tool |
| CN201687822U (en) * | 2010-05-31 | 2010-12-29 | 广东鸿特精密技术股份有限公司 | Novel type positioning pin |
| CN203857897U (en) * | 2014-05-14 | 2014-10-01 | 浙江正邦汽车模具有限公司 | Detection device of automobile seat slide rail support |
| CN105928431A (en) * | 2016-04-19 | 2016-09-07 | 浙江陆虎汽车有限公司 | Tool for inspecting automotive engine room assembly hole |
| CN207439293U (en) * | 2017-11-28 | 2018-06-01 | 安徽江淮汽车集团股份有限公司 | A kind of subframe cubing |
| CN108253863A (en) * | 2018-01-22 | 2018-07-06 | 四川正梁机械有限公司 | Upper piece cubing in a kind of automobile front axle crossbeam |
| CN207976096U (en) * | 2018-01-22 | 2018-10-16 | 四川正梁机械有限公司 | A kind of trailing wheel installation board mount detection device |
| CN208383012U (en) * | 2018-07-05 | 2019-01-15 | 珠海市春生五金工业有限公司 | Vehicle steering wheel decoration detection device |
| CN208833151U (en) * | 2018-07-19 | 2019-05-07 | 四川正梁机械有限公司 | A kind of automobile front axle upper left cubing |
| CN209371938U (en) * | 2019-02-21 | 2019-09-10 | 珠海市春生五金工业有限公司 | Vehicle steering wheel inside gadget detection device |
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Application publication date: 20210316 |
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