CN114252009A - Fastener projection measuring device and fastener projection measuring method - Google Patents
Fastener projection measuring device and fastener projection measuring method Download PDFInfo
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- CN114252009A CN114252009A CN202111463389.XA CN202111463389A CN114252009A CN 114252009 A CN114252009 A CN 114252009A CN 202111463389 A CN202111463389 A CN 202111463389A CN 114252009 A CN114252009 A CN 114252009A
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- clamping
- fastener
- projection
- arm
- sliding
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- 238000000034 method Methods 0.000 title claims abstract description 14
- 238000005259 measurement Methods 0.000 claims abstract description 40
- 238000005452 bending Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
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Classifications
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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
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B11/00—Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The invention discloses a fastener projection measuring device and a fastener projection measuring method, wherein the fastener projection measuring device comprises: the middle part of the fixed seat is provided with a projection through hole for projection measurement; the fixed seat is provided with clamping bodies which can be adjusted in a front-back and left-right sliding mode through the adjusting assembly, and the four clamping bodies clamp two ends of the fasteners with different lengths in the projection through holes of the fixed seat to perform projection measurement; the accuracy of the projection measurement of the fastener is guaranteed, and the problem that the accuracy of the projection measurement of the fastener which can only clamp the fastener at two points cannot be guaranteed when the length of the fastener is longer or shorter by the conventional equipment is solved.
Description
Technical Field
The invention relates to a fastener projection measuring device and a fastener projection measuring method, and belongs to the technical field of measurement.
Background
In the fastener industry, the key dimension of the fastener is measured by projector equipment as an important means for detecting the fastener, and because the fastener has the characteristics of multiple varieties, multiple specifications, high precision requirement and the like, in the process of measuring the dimension of the fastener by the projector, clamping equipment is required to be used for clamping and fixing the fastener for projection measurement.
In the device for measuring the size of the workpiece by light projection with Chinese patent publication No. CN212567276U, the adopted technical scheme is as follows: the rotating handle is rotated to drive the threaded rod to rotate, so that the two clamping plates are close to and extrude the square workpiece, and then the measurement can be started. Although the projection measurement of the fastener can be achieved, the two clamping plates can only clamp the fastener at two points, when the length of the fastener is long, the two clamping plates approach and press the fastener, so that the fastener is bent in a deflection manner under the action of self weight and extrusion force to generate deformation, and the accuracy of the projection measurement of the fastener cannot be guaranteed; when fastener length is shorter, two grip blocks are close to the distance and are close to the fastener centre gripping, can lead to grip block projection to interfere fastener projection measurement's accuracy for fastener projection measurement's accuracy can not obtain the assurance.
Disclosure of Invention
In order to solve the technical problem, the invention provides a fastener projection measuring device and a fastener projection measuring method.
The invention provides a fastener projection measuring method using a fastener projection measuring device.
The invention is realized by the following technical scheme.
The invention provides a fastener projection measuring device, which comprises:
the middle part of the fixed seat is provided with a projection through hole for projection measurement;
the clamping bodies which can be adjusted in a front-back and left-right sliding mode are installed on the fixing base through the adjusting assembly, and the two ends of the fasteners with different lengths are clamped in the projection through holes of the fixing base through the four clamping bodies to perform projection measurement.
The fixed seats positioned on two opposite sides of the projection through hole are correspondingly provided with an operation groove A and an operation groove B; two the relative distribution that the clamping body can be adjusted through adjusting part with the horizontal slip is installed in operation A, two in addition the relative distribution that the clamping body can be adjusted through adjusting part with the horizontal slip is installed in operation B.
The adjusting assembly comprises a connecting arm, a sliding groove is formed in the fixed seat and can be in sliding fit with the connecting arm, and the connecting arm is compressed through a locking bolt A; when the locking bolt A presses the connecting arm, the connecting arm cannot slide left and right on the fixed seat, and when the locking bolt A does not press the connecting arm, the connecting arm can slide left and right on the fixed seat;
the tail end of the connecting arm is provided with a sliding chute which can be in sliding fit with the clamping arm, and the clamping arm is pressed tightly by a locking bolt B; when the locking bolt B presses the clamping arm, the clamping arm cannot slide back and forth in the T-shaped chute of the connecting arm, and when the locking bolt B does not press the clamping arm, the clamping arm can slide back and forth in the T-shaped chute of the connecting arm; the clamping body which can be adjusted in a front-back and left-right sliding mode is installed on the fixed seat through the adjusting assembly.
The sliding groove matched with the connecting arm is positioned on the outer sides of the operation groove A and the operation groove B on the fixing seat, so that the end part of the connecting arm cannot extend into the inner surface of the projection through hole when in the operation groove A and the operation groove B.
The two ends of the clamping arm are both provided with sliding grooves, and the inner side of the clamping body is provided with a sliding body which can be in sliding fit with the sliding grooves of the clamping arm; the four clamping bodies form two groups of relative sliding to clamp the two ends of the fastener in the upper part of the projection through hole of the fixed seat.
The T-shaped sliding body of the clamping body is in interference sliding fit with the T-shaped sliding groove of the clamping arm, and the interference deformation can fix the position after sliding adjustment in the matching process.
And the clamping body is pressed tightly on the T-shaped sliding groove of the clamping arm through a bolt to fix the position after sliding adjustment.
The T-shaped sliding grooves at the two ends of the clamping arm are not penetrated, and the T-shaped sliding bodies of the clamping bodies can be limited in the T-shaped sliding grooves of the clamping arm because the T-shaped sliding grooves are not penetrated.
And the clamping end part of the clamping body is provided with three clamping positions which are formed by a circular shape, a triangular shape and a hexagonal shape.
The invention relates to a fastener projection measuring method using the fastener projection measuring device, which comprises the following steps:
the method comprises the following steps: when the length of the fastener can be outside the projection through hole, the operation groove A and the operation groove B, the end parts of the clamping bodies on the connecting arms are adjusted according to the length of the fastener, so that the connecting arms and the clamping arms can be in sliding fit to enable the clamping bodies to be outside the fixing seat, the fastener is not subjected to deflection and bending deformation under the self gravity, the external shapes of the two ends of the fastener correspond to the clamping positions of the clamping end parts on the four clamping bodies to be clamped in a horizontal state, a part of the fastener, which needs to be subjected to projection measurement, is horizontally positioned in the projection through hole, and the accuracy of the projection measurement of the fastener is ensured;
step two: when fastener length only is in projection through-hole and operation groove A, when operation groove B is inside, adjust the tip of holding body at the linking arm according to fastener length, but make linking arm and centre gripping arm sliding fit let the holding body be in the fixing base, the centre gripping position of centre gripping tip corresponds the centre gripping on fastener one end or both ends external shape and two or four holding bodies, when linking arm and centre gripping arm sliding fit this moment, the linking arm is in outside the fixing base and can not drive the holding body and stretch into in the projection through-hole, make the fastener need the projection measurement part to be located the projection through-hole, fastener projection measurement's accuracy has been guaranteed.
The invention has the beneficial effects that: the four clamping bodies clamp two ends of the fasteners with different lengths in the projection through holes of the fixing seat to perform projection measurement; the accuracy of the projection measurement of the fastener is guaranteed, and the problem that the accuracy of the projection measurement of the fastener which can only clamp the fastener at two points cannot be guaranteed when the length of the fastener is longer or shorter by the conventional equipment is solved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of the fixing base of the present invention;
FIG. 3 is a schematic view of a linking arm of the present invention;
FIG. 4 is a schematic view of the construction of the clamp arm of the present invention;
FIG. 5 is a schematic view of the structure of the clamping body of the present invention;
in the figure: 1-a fixed seat; 11-a projected through hole; 12-operation tank A; 13-operation tank B; 2-a clamping body; 21-a linker arm; 22-a gripper arm; 23-locking bolt a; 24-locking bolt B; 26-clamping the end.
Detailed Description
The technical solution of the present invention is further described below, but the scope of the claimed invention is not limited to the described.
As shown in fig. 1-5.
The invention relates to a fastener projection measuring device, which comprises:
the integrally supported fixing seat 1 is provided, when the fixing seat 1 is used, the bottom of the fixing seat 1 is positioned on glass, a hollowed projection through hole 11 is formed in the middle of the fixing seat 1, the projection through hole 11 can be rectangular, circular or polygonal, a lamp is arranged above the projection through hole 11 after a fastener and the like are fixed, the projection of the fastener penetrates through the glass for forming, and the projection measurement of the size of the fastener is realized;
in order to fix fasteners with different lengths in the projection through holes 11 of the fixing base 1, the fixing base 1 is provided with clamping bodies 2 which can be adjusted in a front-back and left-right sliding mode through an adjusting assembly, the four clamping bodies 2 clamp the two ends of the fasteners with different lengths in the projection through holes 11 of the fixing base 1 for projection measurement, the accuracy of the projection measurement of the fasteners is guaranteed, and the problem that the accuracy of the projection measurement of the fasteners can only be clamped at two points when the lengths of the fasteners are longer or shorter by the existing equipment is solved.
The fixed seat 1 positioned on two opposite sides of the projection through hole 11 is correspondingly provided with an operation groove A12 and an operation groove B13; the number of the clamping bodies 2 is four, two clamping bodies 2 are arranged in the operation groove A12 in a manner of being capable of being adjusted by sliding forwards and backwards and leftwards and rightwards through the adjusting assembly in a relatively distributed manner, and the other two clamping bodies 2 are arranged in the operation groove B13 in a manner of being adjusted by sliding forwards and backwards and leftwards and rightwards through the adjusting assembly in a relatively distributed manner.
The adjusting assembly comprises a T-shaped connecting arm 21, a T-shaped sliding groove is arranged on the fixed seat 1 and is in sliding fit with the T-shaped connecting arm 21, a threaded through hole is formed in the fixed seat 1 and extends to the T-shaped sliding groove, and a locking bolt A23 is screwed in the threaded through hole to compress the sliding of the connecting arm 21; when the locking bolt A23 presses the connecting arm 21, the connecting arm 21 cannot slide left and right on the fixed seat 1, and when the locking bolt A23 does not press the connecting arm 21, the connecting arm 21 can slide left and right on the fixed seat 1;
the T-shaped clamping arm 22 is arranged, a T-shaped sliding groove which can be in sliding fit with the clamping arm 22 is arranged at the tail end of the connecting arm 21, and a locking bolt B24 which is screwed onto the T-shaped sliding groove and tightly presses the clamping arm 22 is screwed on and penetrates through the clamping arm 22; when the lock bolt B24 presses the clamp arm 22, the clamp arm 22 cannot slide back and forth in the T-shaped slide groove of the connecting arm 21, and when the lock bolt B24 does not press the clamp arm 22, the clamp arm 22 can slide back and forth in the T-shaped slide groove of the connecting arm 21. The clamping body 2 which can be adjusted in a front-back and left-right sliding mode is installed on the fixed seat 1 through the adjusting assembly.
The T-shaped sliding groove matched with the connecting arm 21 is positioned on the outer sides of the operation groove A12 and the operation groove B13 on the fixed seat 1, so that the end part of the connecting arm 21 cannot extend into the inner surface of the projection through hole 11 when being positioned in the operation groove A12 and the operation groove B13, and interference of a fastener during projection measurement can be avoided.
The two ends of the clamping arm 22 are both provided with non-through T-shaped chutes, the inner side of the clamping body 2 is provided with a T-shaped sliding body which can be in sliding fit with the T-shaped chutes of the clamping arm 22, and the T-shaped sliding body of the clamping body 2 can be limited in the T-shaped chutes of the clamping arm 22 because the T-shaped chutes are not through; the four clamping bodies 2 form two groups to slide relatively to clamp two ends of the fastener in the upper part of the projection through hole 11 of the fixed seat 1; the T-shaped sliding body of the clamping body 2 is in interference sliding fit with the T-shaped sliding groove of the clamping arm 22, and the interference deformation can fix the position after sliding adjustment during matching; or the clamping body 2 is pressed on the T-shaped sliding groove of the clamping arm 22 through a bolt to fix the position after sliding adjustment.
The clamping end 26 of the clamping body 2 is provided with three clamping shapes to form three clamping positions, and the three clamping shapes comprise three clamping positions formed by a circular shape, a triangular shape and a hexagonal shape.
The invention relates to a fastener projection measuring method using the fastener projection measuring device, which comprises the following steps:
the method comprises the following steps: when the length of the fastener can be outside the projection through hole 11, the operation groove A12 and the operation groove B13, the end part of the clamping body 2 on the connecting arm 21 is adjusted according to the length of the fastener, so that the connecting arm 21 and the clamping arm 22 can be in sliding fit to enable the clamping body 2 to be outside the fixing seat 1 and to be in the state shown in figure 1, the fastener is free from deflection and bending deformation under the self gravity, the external shapes of the two ends of the fastener correspond to the clamping positions of the clamping end parts 26 on the four clamping bodies 2 to be clamped in a horizontal state, the part of the fastener which needs projection measurement is horizontally positioned in the projection through hole 11, and the accuracy of the projection measurement of the fastener is ensured;
step two: when the length of the fastener is only in the projection through hole 11, the operation groove A12 and the operation groove B13, the end part of the clamping body 2 at the connecting arm 21 is adjusted according to the length of the fastener, so that the connecting arm 21 and the clamping arm 22 can be in sliding fit to enable the clamping body 2 to be in the fixing base 1, the opposite state shown in figure 1 is presented, a schematic diagram is not shown here, the external shapes of two ends of the fastener correspond to the clamping positions of the clamping end parts 26 on the four clamping bodies 2 for clamping, at the moment, when the connecting arm 21 and the clamping arm 22 are in sliding fit, the connecting arm 21 is located outside the fixing base 1 and cannot drive the clamping body 2 to stretch into the projection through hole 11, the projection measuring part of the fastener is located in the projection through hole 11, and the accuracy of projection measurement of the fastener is guaranteed.
The problem of current equipment when longer or shorter to the length of fastener, can only two points centre gripping fastener projection measurement accuracy can not obtain the assurance is solved.
Meanwhile, the connecting arm 21 cannot extend into the inner surface of the projection through hole 11, so that the accuracy of the projection measurement of the fastener is further ensured.
Claims (10)
1. A fastener projection measuring device is characterized in that a fixed seat (1) is provided with a projection through hole (11) for projection measurement in the middle of the fixed seat (1);
the clamping bodies (2) which can be adjusted in a front-back and left-right sliding mode are installed on the fixing base (1) through the adjusting assembly, and the two ends of the fasteners with different lengths are clamped in the projection through holes (11) of the fixing base (1) through the four clamping bodies (2) to perform projection measurement.
2. The fastener projection measurement apparatus of claim 1, wherein: an operation groove A (12) and an operation groove B (13) are correspondingly arranged on the fixed seat (1) positioned on two opposite sides of the projection through hole (11); two the clamping body (2) can be installed in the operation groove A (12) through the relative distribution that adjusting assembly adjusted with sliding from side to side around, and two in addition the clamping body (2) can be installed in the operation groove B (13) through the relative distribution that adjusting assembly adjusted with sliding from side to side around through adjusting assembly.
3. The fastener projection measurement apparatus of claim 1, wherein: the adjusting assembly comprises a connecting arm (21), a sliding groove is formed in the fixed seat (1) and is in sliding fit with the connecting arm (21), and the connecting arm (21) is compressed through a locking bolt A (23); when the locking bolt A (23) presses the connecting arm (21), the connecting arm (21) cannot slide left and right on the fixed seat (1), and when the locking bolt A (23) does not press the connecting arm (21), the connecting arm (21) can slide left and right on the fixed seat (1);
the tail end of the connecting arm (21) is provided with a sliding groove in sliding fit with the clamping arm (22), and the clamping arm (22) is pressed tightly through a locking bolt B (24); when the locking bolt B (24) presses the clamping arm (22), the clamping arm (22) cannot slide back and forth in the T-shaped sliding groove of the connecting arm (21), and when the locking bolt B (24) does not press the clamping arm (22), the clamping arm (22) can slide back and forth in the T-shaped sliding groove of the connecting arm (21); the clamping body (2) which can be adjusted in a front-back and left-right sliding mode is installed on the fixed seat (1) through the adjusting assembly.
4. The fastener projection measurement apparatus of claim 1, wherein: the sliding groove matched with the connecting arm (21) is positioned on the outer sides of the operation groove A (12) and the operation groove B (13) on the fixed seat (1), so that the end part of the connecting arm (21) cannot stretch into the inner surface of the projection through hole (11) when in the operation groove A (12) and the operation groove B (13).
5. The fastener projection measurement apparatus of claim 1, wherein: the two ends of the clamping arm (22) are provided with sliding grooves, and the inner side of the clamping body (2) is provided with a sliding body which can be in sliding fit with the sliding grooves of the clamping arm (22); the four clamping bodies (2) form two groups of relative sliding to clamp the two ends of the fastener in the upper part of the projection through hole (11) of the fixed seat (1).
6. The fastener projection measurement apparatus of claim 1, wherein: the T-shaped sliding body of the clamping body (2) is in interference sliding fit with the T-shaped sliding groove of the clamping arm (22), and the interference deformation can fix the position after sliding adjustment when the interference deformation is matched.
7. The fastener projection measurement apparatus of claim 1, wherein: the clamping body (2) is pressed tightly on the T-shaped sliding groove of the clamping arm (22) through a bolt to fix the position after sliding adjustment.
8. The fastener projection measurement apparatus of claim 1, wherein: the T-shaped sliding grooves at the two ends of the clamping arm (22) are not communicated.
9. The fastener projection measurement apparatus of claim 1, wherein: the clamping end part (26) of the clamping body (2) is provided with three clamping positions which are formed by a circular shape, a triangular shape and a hexagonal shape.
10. A fastener projection measuring method using the fastener projection measuring apparatus according to any one of claims 1 to 9, comprising the steps of:
the method comprises the following steps: when the length of the fastener can be outside the projection through hole (11), the operation groove A (12) and the operation groove B (13), the end part of the clamping body (2) on the connecting arm (21) is adjusted according to the length of the fastener, so that the connecting arm (21) and the clamping arm (22) can be in sliding fit to enable the clamping body (2) to be outside the fixed seat (1);
step two: when the length of the fastener is only arranged in the projection through hole (11), the operation groove A (12) and the operation groove B (13), the end part of the clamping body (2) on the connecting arm (21) is adjusted according to the length of the fastener, so that the connecting arm (21) and the clamping arm (22) can be in sliding fit to enable the clamping body (2) to be positioned in the fixed seat (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111463389.XA CN114252009B (en) | 2021-12-02 | Fastener projection measurement device and fastener projection measurement method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111463389.XA CN114252009B (en) | 2021-12-02 | Fastener projection measurement device and fastener projection measurement method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114252009A true CN114252009A (en) | 2022-03-29 |
| CN114252009B CN114252009B (en) | 2024-05-10 |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103949994A (en) * | 2014-05-05 | 2014-07-30 | 南昌欧菲光学技术有限公司 | Projection measuring positioning device |
| CN208155270U (en) * | 2018-05-18 | 2018-11-27 | 成都弘佛科技有限公司 | A kind of projection fixture |
| CN212192868U (en) * | 2020-05-31 | 2020-12-22 | 高丽娟 | Multi-angle clamping device for casting machining |
| CN212497383U (en) * | 2020-06-10 | 2021-02-09 | 东方蓝天钛金科技有限公司 | Tool for projection detection of fastener |
| CN212567276U (en) * | 2020-07-16 | 2021-02-19 | 威海嘉喜德自动化科技有限公司 | Device for measuring size of workpiece by light projection |
| CN213274145U (en) * | 2020-11-11 | 2021-05-25 | 苏州春田机械有限公司 | Automatic clamping device for CCD optical measuring machine |
| CN213422088U (en) * | 2020-07-21 | 2021-06-11 | 上海砺工实业有限公司 | Size detection device for manufacturing non-elevation end equipment |
| CN213439262U (en) * | 2020-09-30 | 2021-06-15 | 江苏大摩半导体科技有限公司 | Novel photoelectric measuring instrument |
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103949994A (en) * | 2014-05-05 | 2014-07-30 | 南昌欧菲光学技术有限公司 | Projection measuring positioning device |
| CN208155270U (en) * | 2018-05-18 | 2018-11-27 | 成都弘佛科技有限公司 | A kind of projection fixture |
| CN212192868U (en) * | 2020-05-31 | 2020-12-22 | 高丽娟 | Multi-angle clamping device for casting machining |
| CN212497383U (en) * | 2020-06-10 | 2021-02-09 | 东方蓝天钛金科技有限公司 | Tool for projection detection of fastener |
| CN212567276U (en) * | 2020-07-16 | 2021-02-19 | 威海嘉喜德自动化科技有限公司 | Device for measuring size of workpiece by light projection |
| CN213422088U (en) * | 2020-07-21 | 2021-06-11 | 上海砺工实业有限公司 | Size detection device for manufacturing non-elevation end equipment |
| CN213439262U (en) * | 2020-09-30 | 2021-06-15 | 江苏大摩半导体科技有限公司 | Novel photoelectric measuring instrument |
| CN213274145U (en) * | 2020-11-11 | 2021-05-25 | 苏州春田机械有限公司 | Automatic clamping device for CCD optical measuring machine |
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