CN213748272U - Shaft workpiece length detection device - Google Patents
Shaft workpiece length detection device Download PDFInfo
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- CN213748272U CN213748272U CN202022189815.2U CN202022189815U CN213748272U CN 213748272 U CN213748272 U CN 213748272U CN 202022189815 U CN202022189815 U CN 202022189815U CN 213748272 U CN213748272 U CN 213748272U
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- bottom plate
- shaft
- sliding block
- detection device
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Abstract
The utility model discloses a length detection device for shaft workpieces, which comprises a bottom plate; the front stop block is fixedly arranged at the front end of the bottom plate and used for limiting the front end surface of the shaft workpiece; the supporting piece is arranged on the bottom plate and used for supporting the shaft workpiece; the linear guide rail is arranged on the bottom plate and is positioned behind the front stop block; the sliding block is arranged on the linear guide rail in a manner of moving back and forth, and the front side of the sliding block is provided with a top block used for abutting against the rear end of the shaft workpiece; the cylinder is arranged on the bottom plate and behind the sliding block and used for driving the sliding block to move back and forth; the probe bracket is arranged on the bottom plate and is positioned on one side of the cylinder; and the laser displacement probe is arranged on the probe bracket, and the laser emitted by the laser displacement probe faces the extension part of the sliding block. The shaft workpiece length detection device is high in automation degree, and can effectively improve the measurement accuracy and the detection efficiency. The working strength of detection personnel can be effectively reduced, and the method is suitable for large-scale detection. The linear guide rail is arranged, so that the slide block can run more stably, and the positioning precision is higher.
Description
Technical Field
The utility model relates to a work piece measurement technical field especially relates to an axle type work piece length detection device.
Background
One of the typical parts often encountered in the hardware fittings of shaft workpieces is mainly used for supporting transmission parts, transmitting torque and bearing load. Due to the universality of the shaft workpiece, the safety factor and the service life of the product can be directly influenced if the size of the shaft workpiece is accurate.
At present, the length of shaft workpieces is usually detected by a manual detection mode, the manual detection mainly detects the outer diameter of the shaft workpieces through a measuring tool, but the detection mode has poor precision and large error, and detected data are easily influenced by different operators and different measuring tools.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an axle type work piece length detection device to solve the problem that the background art provided.
In order to achieve the above object, the utility model provides a following technical scheme:
a shaft workpiece length detection device comprises:
a base plate;
the front stop block is fixedly arranged at the front end of the bottom plate and used for limiting the front end surface of the shaft workpiece;
the supporting piece is arranged on the bottom plate and positioned behind the front stop block and used for supporting the shaft workpiece;
the linear guide rail is arranged on the bottom plate and is positioned behind the front stop block;
the sliding block is arranged on the linear guide rail in a back-and-forth moving way, a top block used for abutting against the rear end of the shaft workpiece is arranged on the front side of the sliding block, and the top block is provided with an extending part protruding out of one side of the sliding block;
the cylinder is arranged on the bottom plate and behind the sliding block and used for driving the sliding block to move back and forth;
the probe bracket is arranged on the bottom plate and is positioned on one side of the cylinder;
and the laser displacement probe is arranged on the probe bracket, and the laser emitted by the laser displacement probe faces the extension part of the sliding block.
As a preferred scheme, the air cylinder comprises an air cylinder seat and a push rod, the air cylinder seat is installed on the bottom plate and drives the push rod to stretch, and the push rod is fixed with the sliding block.
As a preferable scheme, the push rod comprises a rod part and a head part, wherein the rod part is arranged at the front end of the rod part; the connecting piece is fixedly arranged on the rear side surface of the sliding block and matched with the sliding block to clamp the head part, and the top of the connecting piece is provided with a downward concave formed accommodating groove for accommodating the rod part.
Preferably, the cylinder block is mounted on the base plate by a cylinder mount, and the cylinder mount is located between the slider and the laser displacement probe in the front-rear direction.
As a preferred scheme, the probe bracket comprises a horizontal fixing part and a vertical extending part, the horizontal fixing part is fixed with the bottom plate, the vertical extending part is connected with one side of the horizontal fixing part and extends upwards and vertically, and the laser displacement probe is installed on one side, far away from the cylinder, of the vertical extending part.
Preferably, the two supporting members are arranged on the bottom plate at intervals in a front-back direction.
As an optimal scheme, support piece includes fixed block and stopper, the fixed block is fixed with the top surface of bottom plate, and the stopper is installed on the fixed block for support axle class work piece, the stopper is equipped with from the V type groove of its concave formation of top surface.
Preferably, the fixing member has a main body and a fixing portion protruding from a lower end of the main body to a side, and the fixing portion is fixed to the base plate by a screw. One side of the limiting block is provided with a sliding groove matched with the main body part, the sliding groove is communicated up and down, the limiting block is provided with a strip hole, and the main body part is provided with a positioning hole matched with the strip hole.
Preferably, the front stop block further comprises a backing plate, and the backing plate is mounted on the rear end face of the front stop block.
Compared with the prior art, the utility model discloses the beneficial effect who reaches is:
the shaft workpiece length detection device is high in automation degree, the problem that detection personnel easily generate errors in measurement is solved, and the measurement accuracy and the detection efficiency can be effectively improved. The working strength of detection personnel can be effectively reduced, and the method is suitable for large-scale detection. The linear guide rail is arranged, so that the slide block can run more stably, and the positioning precision is higher.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a perspective view of the length measuring device for middle shaft workpieces of the present invention;
FIG. 2 is a top view of the length measuring device for middle shaft workpieces according to the present invention;
fig. 3 is a perspective view (with a shaft workpiece) of another view angle of the middle shaft workpiece length detection device of the present invention;
the device comprises a bottom plate-1, a mounting seat-11, a supporting piece-2, a fixing block-21, a fixing part-211, a positioning hole-212, a limiting block-22, a sliding groove-221, a V-shaped groove-222, a linear guide rail-3, a sliding block-4, a top block-41, an extending part-411, a connecting piece-42, a laser displacement probe-5, a probe support-6, a fixing part-61, a vertical extending part-62, an air cylinder-7, an air cylinder seat-71, a push rod-72, a rod part 721, a head-722, a front stop block-8, a backing plate-81 and a shaft workpiece-100.
Detailed Description
In order to facilitate understanding of the present invention, the present invention will be described in more detail with reference to the accompanying drawings and embodiments. It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may be present. The terms "upper", "lower", "left", "right", "inner", "outer" and the like as used herein are for illustrative purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Examples
As shown in fig. 1-3, the utility model provides an axle type work piece length detection device, including bottom plate 1, preceding dog 8, support piece 2, linear guide 3, slider 4, cylinder 7, probe bracket 6 and laser displacement probe 5. The front stop block is fixedly arranged at the front end of the bottom plate and is vertically arranged, and a backing plate 81 is arranged on the rear end face of the front stop block and is used for limiting the front end face of the shaft workpiece; the supporting piece 2 is arranged on the bottom plate and positioned behind the front stop block and used for supporting and limiting the shaft workpieces; the linear guide rail is arranged on the bottom plate and is positioned behind the front stop block, and the linear guide rail 3 is arranged along the front-back direction; the slide block 4 is arranged on the linear guide rail in a way of moving back and forth, a top block 41 used for abutting against the rear end of the shaft workpiece is arranged at the front side of the slide block, and the top block 41 is provided with an extension part 411 protruding out of one side of the slide block; the cylinder is arranged on the bottom plate and behind the sliding block and used for driving the sliding block to move back and forth; the probe bracket 6 is arranged on the bottom plate and is positioned on one side of the cylinder; the laser displacement probe 5 is mounted on the probe holder with the laser emitted towards the extension 411 of the slide.
The air cylinder 7 comprises a cylinder seat 71 and a push rod 72, the cylinder seat is mounted on the bottom plate and drives the push rod to stretch, and the push rod 72 is fixed with the sliding block. The push rod comprises a rod part 721 and a head part 722 arranged at the front end of the rod part; a connecting piece 42 is fixedly arranged on the rear side surface of the sliding block and is matched with the sliding block to clamp the head part, and the top of the connecting piece is provided with a downward concave formed accommodating groove for accommodating the rod part, so that the cylinder 7 can be conveniently installed from top to bottom. The cylinder block is arranged on the bottom plate through a cylinder mounting seat 11, the cylinder mounting seat is arranged between the sliding block and the laser displacement probe in the front and back direction, and the linear guide rail penetrates through the bottom of the cylinder mounting seat 11.
The probe bracket comprises a horizontal fixing part 61 and a vertical extending part 62, the horizontal fixing part is fixed with the bottom plate, the vertical extending part is connected with one side of the horizontal fixing part and vertically extends upwards, and the laser displacement probe is installed on one side of the vertical extending part away from the cylinder.
In this embodiment, two supporting members 2 are provided, and the two supporting members 2 are arranged at intervals in front and rear of the bottom plate. The supporting piece comprises a fixing block 21 and a limiting block 22, the fixing block is fixed to the top surface of the bottom plate, the limiting block is installed on the fixing block and used for supporting the shaft type workpieces, and the limiting block is provided with a V-shaped groove 222 formed by the fact that the top surface of the limiting block is recessed downwards, so that the shaft type workpieces can be centered automatically conveniently, and the shaft type workpieces with different outer diameters can be suitable for the shaft type workpieces. The fixing member has a main body portion and a fixing portion 211 protruding from a lower end of the main body portion to a side, and the fixing portion 211 is fixed to the base plate by a screw. One side of the limiting block is provided with a sliding groove 221 matched with the main body part, the sliding groove is communicated up and down, the limiting block is provided with a long hole 223, and the main body part is provided with a positioning hole 212 matched with the long hole. The stopper and the main body are fixed by a locking screw (not shown) which passes through the elongated hole and the positioning hole to fix the height position of the stopper.
As shown in fig. 3, the detection method of the length detection device for shaft workpieces is as follows:
firstly, a rotating shaft is manufactured to be a standard part (not shown), the length is determined according to the actual situation, the actual tolerance control is controlled according to the drawing requirements, and a micrometer or a three-coordinate or more precise instrument can be adopted to measure the actual length of the standard part. Then, the standard component is placed on the limiting block 22, the cylinder is started and pushes the standard component forward to fix the position of the standard component, the laser displacement probe 5 is started and measures the rear surface of the top block 411, and the measured value at the moment is the length of the standard component plus the thickness of the top block 41. Because of the comparative measurement, the laser probe controller combines the actual length of the standard component to set the upper and lower limits of the tolerance.
During batch detection, the shaft workpieces 100 are placed in the limiting block 22, the air cylinder is started and pushes the shaft workpieces 100 forward tightly, acceptable errors are ignored, the measured value at the moment is the sum of the actual length value of the shaft workpieces and the thickness of the top block 41, the controller of the laser displacement probe 5 automatically judges whether the shaft workpieces 100 are within the drawing tolerance range, and then whether the tested shaft workpieces 100 are qualified is judged.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. The utility model provides an axle type work piece length detection device which characterized in that includes:
a base plate;
the front stop block is fixedly arranged at the front end of the bottom plate and used for limiting the front end surface of the shaft workpiece;
the supporting piece is arranged on the bottom plate and positioned behind the front stop block and used for supporting the shaft workpiece;
the linear guide rail is arranged on the bottom plate and is positioned behind the front stop block;
the sliding block is arranged on the linear guide rail in a back-and-forth moving way, a top block used for abutting against the rear end of the shaft workpiece is arranged on the front side of the sliding block, and the top block is provided with an extending part protruding out of one side of the sliding block;
the cylinder is arranged on the bottom plate and behind the sliding block and used for driving the sliding block to move back and forth;
the probe bracket is arranged on the bottom plate and is positioned on one side of the cylinder;
and the laser displacement probe is arranged on the probe bracket, and the laser emitted by the laser displacement probe faces the extension part of the sliding block.
2. The length detection device for the shaft workpieces as claimed in claim 1, wherein the cylinder comprises a cylinder seat and a push rod, the cylinder seat is mounted on the bottom plate and drives the push rod to extend and retract, and the push rod is fixed with the sliding block.
3. The length detection device for the shaft-type workpiece according to claim 2, wherein the push rod comprises a rod part and a head part, the rod part is arranged at the front end of the rod part; the connecting piece is fixedly arranged on the rear side surface of the sliding block and matched with the sliding block to clamp the head part, and the top of the connecting piece is provided with a downward concave formed accommodating groove for accommodating the rod part.
4. The length detection device for the shaft-type workpiece according to claim 2, wherein the cylinder block is mounted on the base plate through a cylinder mount, and the cylinder mount is located between the slide block and the laser displacement probe in the front-rear direction.
5. The length detection device for the shaft-type workpiece according to claim 1, wherein the probe bracket comprises a horizontal fixing part and a vertical extending part, the horizontal fixing part is fixed with the bottom plate, the vertical extending part is connected with one side of the horizontal fixing part and extends upwards and vertically, and the laser displacement probe is installed on one side of the vertical extending part, which is far away from the air cylinder.
6. The length detection device for the shaft type workpiece according to claim 1, wherein two support members are provided, and the two support members are arranged on the bottom plate at intervals in a front-back direction.
7. The shaft workpiece length detection device of claim 6, wherein the support member comprises a fixing block and a limiting block, the fixing block is fixed to the top surface of the bottom plate, the limiting block is mounted on the fixing block and used for supporting the shaft workpiece, and the limiting block is provided with a V-shaped groove formed by sinking from the top surface of the limiting block.
8. The shaft workpiece length detection device of claim 7, wherein the fixing member has a main body portion and a fixing portion protruding from a lower end of the main body portion to a side edge, the fixing portion is fixed to the bottom plate by a screw, a slide groove is formed in one side of the stopper and is matched with the main body portion, the slide groove penetrates up and down, the stopper is provided with a long hole, and the main body portion is provided with a positioning hole matched with the long hole.
9. The length detection device for the shaft type workpiece according to claim 1, further comprising a backing plate, wherein the backing plate is mounted on the rear end face of the front stop block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022189815.2U CN213748272U (en) | 2020-09-29 | 2020-09-29 | Shaft workpiece length detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022189815.2U CN213748272U (en) | 2020-09-29 | 2020-09-29 | Shaft workpiece length detection device |
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| Publication Number | Publication Date |
|---|---|
| CN213748272U true CN213748272U (en) | 2021-07-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022189815.2U Active CN213748272U (en) | 2020-09-29 | 2020-09-29 | Shaft workpiece length detection device |
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| CN (1) | CN213748272U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113680682A (en) * | 2021-08-20 | 2021-11-23 | 嘉善品辉精机有限公司 | Three-station detector |
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2020
- 2020-09-29 CN CN202022189815.2U patent/CN213748272U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113680682A (en) * | 2021-08-20 | 2021-11-23 | 嘉善品辉精机有限公司 | Three-station detector |
| CN113680682B (en) * | 2021-08-20 | 2023-02-24 | 嘉善品辉精机有限公司 | Three-station detector |
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