CN215572722U - Transmission shaft span detection device - Google Patents
Transmission shaft span detection device Download PDFInfo
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- CN215572722U CN215572722U CN202122012206.4U CN202122012206U CN215572722U CN 215572722 U CN215572722 U CN 215572722U CN 202122012206 U CN202122012206 U CN 202122012206U CN 215572722 U CN215572722 U CN 215572722U
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Abstract
The utility model provides a transmission shaft span detection device which comprises a deflection checking table, an optical ruler assembly and a measuring head assembly. The deflection checking table is concave, and two inner side surfaces of the deflection checking table are provided with ejector pins for clamping a transmission shaft workpiece. In application, a deflection checking table is used for clamping a transmission shaft workpiece, a measuring head assembly is used for ensuring accurate positioning of a measuring initial position and a measuring final position, and meanwhile, an optical ruler assembly is used for accurately measuring the span of the transmission shaft workpiece and visually displaying a measuring result on a digital display screen; the device is not limited by the length of the transmission shaft workpiece, is convenient to operate, stable and reliable in operation, low in manufacturing cost and maintenance cost, capable of realizing rapid and accurate measurement of the span of the transmission shaft workpiece, reducing the production cost and improving the production efficiency; unqualified workpieces are convenient to screen and reject, and the assembly precision of the automobile transmission shaft is ensured. In addition, the device can also be applied to measuring other lengths of the transmission shaft, such as the total length and the like, and has strong applicability.
Description
Technical Field
The utility model relates to the technical field of automobile part detection, in particular to a transmission shaft span detection device.
Background
The transmission shaft is an important part for transmitting power in an automobile transmission system, and the transmission shaft, a gearbox and a drive axle are used for transmitting the power of an engine to wheels so that an automobile generates driving force. The middle transmission shaft must constitute the transmission shaft (machinery) of car with a series of parts such as universal joint, oil blanket, if the span of middle transmission shaft is bad, then influence the assembly of next stage, consequently, need carry out accurate measurement to the transmission shaft span in the production, reject the transmission shaft that the span detected unqualified, guarantee the assembly precision. Traditional transmission shaft span detection mode is slide caliper rule and projecting apparatus cooperation, receives the influence of transmission shaft span length great, to the great transmission shaft work piece of span, slide caliper rule must select for use long slide caliper rule, and it all has certain inconvenience to take and operate, has the risk of erroneous judgement in the reading of measurationing moreover. Accordingly, there is a need for improved transmission shaft span detection techniques.
Disclosure of Invention
The utility model aims to solve the problems of inconvenient operation and large reading error in the traditional transmission shaft span detection mode, and provides a transmission shaft span detection device which can realize quick and accurate detection of transmission shaft spans, reduce the misjudgment rate and facilitate screening.
In order to achieve the purpose, the utility model adopts the following technical scheme:
a transmission shaft span detection device comprises a deflection inspection table, an optical ruler assembly and a measuring head assembly.
The deflection checking table is concave, the deflection checking table is provided with an inner bottom surface and two inner side surfaces, and ejector pins are arranged on the two inner side surfaces of the deflection checking table and used for clamping transmission shaft workpieces.
The optical ruler component comprises a connecting frame, a square tube and an optical ruler, the connecting frame is arranged on the inner bottom surface of the deflection inspection table along a first direction, the outer end of the connecting frame extends out of the deflection inspection table, and the square tube is arranged on the connecting frame along a second direction; the optical ruler comprises a ruler body and a reading head, wherein the ruler body of the optical ruler is arranged on the side face of the square pipe along the second direction, and the reading head can be movably arranged on the ruler body of the optical ruler along the second direction.
The measuring head assembly comprises a first slide rail, a first slide block, a connecting seat, a second slide block, a second slide rail, a measuring seat and a measuring head, the first slide rail is arranged on the top surface of the square tube along the second direction, the first slide block is movably arranged on the first slide rail, and the structure of the first slide block is matched with that of the first slide rail; the connecting seat is arranged on the first sliding block and is connected with the reading head; the second sliding block is arranged on the connecting seat along the first direction, the second sliding rail is arranged on the second sliding block along the first direction, the structure of the second sliding rail is matched with that of the second sliding block, the measuring seat is arranged on the second sliding rail, and the measuring head is arranged at the top end of the measuring seat.
Preferably, the height of the central point of the measuring head is consistent with the height of the tip of the thimble.
Preferably, the optical scale assembly and the measuring head assembly are located on the same side of the deflection checking table.
Preferably, the connecting seat is L-shaped, the connecting seat includes a horizontal plate and a vertical plate which are connected with each other, the horizontal plate is fixed on the first sliding block, and the vertical plate is connected with the reading head.
Preferably, the centers of the end faces of the two ends of the transmission shaft workpiece are provided with positioning holes, and the structures of the positioning holes are matched with the structures of the thimbles.
Preferably, a first groove and a second groove are respectively formed in two ends of the transmission shaft workpiece, and the width of the measuring head is smaller than the widths of the first groove and the second groove along the second direction.
Preferably, a digital display screen is arranged on the reading head.
Preferably, the measuring head is detachably fixed to the top end of the measuring base through a fastener.
Preferably, the fastener is a screw, a screw or a bolt.
Preferably, the stylus is a blade of a white steel.
Compared with the prior art, the utility model has the beneficial effects that: clamping a transmission shaft workpiece by using a deflection checking table, ensuring accurate positioning of a measurement starting position and a measurement ending position by using a measuring head assembly, and simultaneously accurately measuring the span of the transmission shaft workpiece by using an optical ruler assembly and visually displaying a measurement result on a digital display screen; the device is not limited by the length of the transmission shaft workpiece, is convenient to operate, stable and reliable in operation, low in manufacturing cost and maintenance cost, capable of realizing rapid and accurate measurement of the span of the transmission shaft workpiece, reducing the production cost and improving the production efficiency; unqualified workpieces are convenient to screen and reject, and the assembly precision of the automobile transmission shaft is ensured. In addition, the device can also be applied to measuring other lengths of the transmission shaft, such as the total length and the like, and has strong applicability.
Drawings
FIG. 1 is a front view of a drive shaft span detection arrangement of the present invention;
FIG. 2 is a right side view of a drive shaft span detection arrangement of the present invention;
FIG. 3 is a front view of a drive shaft workpiece according to the present invention;
fig. 4 is a schematic structural diagram of the transmission shaft span detection device when the measuring head is at the initial position;
fig. 5 is a schematic structural diagram of the drive shaft span detection device when the measuring head is at the termination position.
In the figure, 100-transmission shaft span detection device, 10-deflection inspection platform, 11-thimble, 12-inner bottom surface, 13-inner side surface, 20-optical ruler component, 21-connecting frame, 22-square tube, 23-optical ruler, 231-reading head, 232-digital display screen, 30-measuring head component, 31-first slide rail, 32-first slide block, 33-connecting seat, 34-second slide block, 35-second slide rail, 36-measuring seat, 37-measuring head, 200-transmission shaft workpiece, 201-first groove and 202-second groove.
Detailed Description
In order to further understand the objects, structures, features and functions of the present invention, the following embodiments are described in detail.
Referring to fig. 1 and fig. 2 in combination, fig. 1 is a front view of a transmission shaft span detection device according to the present invention; FIG. 2 is a right side view of a drive shaft span detection arrangement of the present invention; in this embodiment, when the drive shaft span detection device 100 shown in fig. 1 and 2 is placed, the first direction X, which will be described later, is the front-rear direction of the drive shaft span detection device 100, the second direction Y is the left-right direction of the drive shaft span detection device 100, and the Z direction is the up-down direction of the drive shaft span detection device 100.
A drive shaft span detection device 100 of the present invention includes a yaw inspection table 10, an optical scale assembly 20, and a probe assembly 30. The deflection checking table 10 is concave, the deflection checking table 10 is provided with an inner bottom surface 12 and two inner side surfaces 13, and the two inner side surfaces 13 of the deflection checking table 10 are provided with ejector pins 11 for clamping the transmission shaft workpiece 200; the gauge head assembly 30 is used to precisely position the span measurement start and end positions, and the optical scale assembly 20 is used to precisely measure the span of the drive shaft workpiece 200.
Referring to fig. 1 and fig. 2 in combination, the optical ruler assembly 20 includes a connecting frame 21, a square tube 22 and an optical ruler 23, the connecting frame 21 is disposed on the inner bottom surface 12 of the yaw inspection table 10 along a first direction X, an outer end of the connecting frame 21 extends out of the yaw inspection table 10, and the square tube 22 is disposed on the connecting frame 21 along a second direction Y; the optical ruler 23 includes a ruler body and a reading head 231, the ruler body of the optical ruler 23 is disposed on a side surface of the square tube 22 along the second direction Y, and the reading head 231 is movably disposed on the ruler body of the optical ruler 23 along the second direction Y.
An optical scale, namely a grating scale, also called a grating scale displacement sensor, works by utilizing moire fringe of a grating and a photoelectric conversion technology, is commonly used for detecting linear displacement or angular displacement, and has the advantages of large detection range, high detection precision, high response speed and the like. The working principle and construction of the optical ruler belong to the prior art, and are not described in detail herein. The utility model adopts the optical ruler to measure the span of the transmission shaft, is not limited by the length of the transmission shaft, and has convenient operation and strong applicability.
In the preferred embodiment of the present invention, the reading head 231 is provided with the digital display screen 232, which can intuitively and rapidly display the measurement result.
Referring to fig. 1 and fig. 2 in combination, the measuring head assembly 30 includes a first slide rail 31, a first slide block 32, a connecting seat 33, a second slide block 34, a second slide rail 35, a measuring seat 36 and a measuring head 37, the first slide rail 31 is disposed on the top surface of the square tube 22 along the second direction Y, the first slide block 32 is movably disposed on the first slide rail 31, and the structure of the first slide block 32 matches with the structure of the first slide rail 31; the connecting seat 33 is disposed on the first sliding block 32, and the connecting seat 33 is connected with the reading head 231; the second slider 34 is arranged on the connecting seat 33 along the first direction X, the second slide rail 35 is arranged on the second slider 34 along the first direction X, the structure of the second slide rail 35 is matched with that of the second slider 34, the measuring seat 36 is arranged on the second slide rail 35, and the measuring head 37 is arranged on the top end of the measuring seat 36. The cooperation of second slide rail 35 and second slider 34 can realize the motion of gauge head 37 along first direction X, and the cooperation of first slide rail 31 and first slider 32 can realize the motion of gauge head 37 along second direction Y, and when first slider 32 moved along second direction Y on first slide rail 31, because connecting seat 33 is connected with first slider 32 and reading head 231 respectively, consequently, can drive reading head 231 along second direction Y motion simultaneously to realize length measurement function in second direction Y.
The optical ruler component 20 and the measuring head component 30 are located on the same side of the deflection checking table 10, so that the clamping operation of the transmission shaft workpiece 200 is prevented from being influenced. In an embodiment of the present invention, the optical scale assembly 20 and the measuring head assembly 30 are located at the rear side of the yaw checking table 10, and in other embodiments, the positions of the optical scale assembly 20 and the measuring head assembly 30 may be set according to actual requirements, which is not limited in the present invention.
Referring to fig. 2, the connecting seat 33 is L-shaped, and the connecting seat 33 includes a horizontal plate and a vertical plate connected to each other, the horizontal plate is fixed on the first slider 32, and the vertical plate is connected to the reading head 231. The connection between the optical scale assembly 20 and the measuring head assembly 30 is realized through the connecting seat 33, so that the movement of the measuring head 37 along the second direction Y is synchronous with the movement of the reading head 231 along the second direction Y, and the accuracy of the measuring result is ensured.
In the preferred embodiment of the present invention, the height of the central point of the measuring head 37 is consistent with the height of the tip of the thimble 11, so as to ensure the detection precision and reduce the misjudgment rate.
In the preferred embodiment of the present invention, the gauge head 37 is detachably fixed to the top end of the gauge stand 36 by a fastener. The fastener can be screw, screw or bolt etc. easy to assemble and dismantle, change.
In the preferred embodiment of the present invention, the gauge head 37 is a blade made of white steel, which has sufficient hardness to reduce wear deformation during use and avoid measurement errors caused by wear and other problems.
Referring to fig. 3, fig. 3 is a front view of a transmission shaft workpiece according to the present invention; the centers of the end faces of the two ends of the transmission shaft workpiece 200 are provided with positioning holes (not shown), and the structures of the positioning holes are matched with those of the ejector pins 11. The two ends of the transmission shaft workpiece 20 are respectively provided with a first groove 201 and a second groove 202, and the width of the measuring head 37 is smaller than the widths of the first groove 201 and the second groove 202 along the second direction Y. The distance L from the left side (span measurement start position) of the first groove 201 to the right side (span measurement end position) of the second groove 202 is the span of the propeller shaft workpiece 200.
Referring to fig. 4 and 5 in combination, fig. 4 is a schematic structural diagram of the transmission shaft span detection device when the probe is at the initial position; fig. 5 is a schematic structural diagram of the drive shaft span detection device when the measuring head is at the termination position. The operation process of detecting the span of the transmission shaft workpiece 200 by using the transmission shaft span detection device 100 of the present invention is as follows: firstly, clamping a transmission shaft workpiece 200 on a deflection inspection table 10 by using thimbles 11 on two sides; then, the second slide rail 35 and the second slide block 34 are matched to move the measuring head 37 along the first direction X, the first slide rail 31 and the second slide block 32 are matched to move the measuring head 37 along the second direction Y, the measuring head 37 is moved into the first groove 201 of the transmission shaft workpiece 200, the measuring head 37 contacts with the left side (span measurement starting position) of the first groove 201, and the reading of the optical ruler 23 returns to zero; then, by using the cooperation of the second slide rail 35 and the second slide block 34, the measuring head 37 is moved along the first direction X, so that the measuring head is moved out of the first groove 201, and then the measuring head 37 and the reading head 231 are moved along the second direction Y to the right by the cooperation of the first slide block 32 and the first slide rail 31, so that the optical ruler 23 performs measurement; when the measuring head 37 reaches the second groove 202, the measuring head 37 is moved into the second groove 202 along the first direction X by using the cooperation of the second slide rail 35 and the second slide block 34, and the measuring head 37 is contacted with the right side edge (the span measurement ending position) of the second groove 202, at this time, the reading on the digital display screen 232 is the span measurement value of the transmission shaft workpiece 200. The device is used for measuring the span of the transmission shaft, is convenient to operate, high in detection precision, high in detection efficiency, low in manufacturing and maintenance cost and strong in applicability, and is a quick and effective span detection mode.
In addition, the transmission shaft span detection device 100 of the present invention may also be used for measuring other lengths of a transmission shaft workpiece, such as measuring the total length of the transmission shaft workpiece, during operation, the second slide rail 35 and the second slide block 34 are used to cooperate to perform movement of the measuring head 37 along the first direction X, the first slide rail 31 and the second slide block 32 are used to perform movement of the measuring head 37 along the second direction Y, the left end surface of the transmission shaft workpiece 200 is a measurement start position, and the right end surface of the transmission shaft workpiece 200 is a measurement end position, and the specific operation process is similar to the above and will not be described again.
In summary, the present invention provides a transmission shaft span detection apparatus, which utilizes a deflection inspection table to clamp a transmission shaft workpiece, utilizes a measurement head assembly to ensure accurate positioning of a measurement start position and a measurement end position, and simultaneously, an optical ruler assembly to accurately measure the span of the transmission shaft workpiece and visually display the measurement result on a digital display screen; the device is not limited by the length of the transmission shaft workpiece, is convenient to operate, stable and reliable in operation, low in manufacturing cost and maintenance cost, capable of realizing rapid and accurate measurement of the span of the transmission shaft workpiece, reducing the production cost and improving the production efficiency; unqualified workpieces are convenient to screen and reject, and the assembly precision of the automobile transmission shaft is ensured. In addition, the device can also be applied to measuring other lengths of the transmission shaft, such as the total length and the like, and has strong applicability.
The present invention has been described in relation to the above embodiments, which are only exemplary of the implementation of the present invention. It should be noted that the disclosed embodiments do not limit the scope of the utility model. Rather, it is intended that all such modifications and variations be included within the spirit and scope of this invention.
Claims (10)
1. A transmission shaft span detection device is characterized in that: the device comprises a deflection checking table, an optical ruler component and a measuring head component;
the deflection inspection table is concave, the deflection inspection table is provided with an inner bottom surface and two inner side surfaces, and ejector pins are arranged on the two inner side surfaces of the deflection inspection table and used for clamping transmission shaft workpieces;
the optical ruler component comprises a connecting frame, a square tube and an optical ruler, the connecting frame is arranged on the inner bottom surface of the deflection inspection table along a first direction, the outer end of the connecting frame extends out of the deflection inspection table, and the square tube is arranged on the connecting frame along a second direction; the optical ruler comprises a ruler body and a reading head, the ruler body of the optical ruler is arranged on the side surface of the square pipe along the second direction, and the reading head can be movably arranged on the ruler body of the optical ruler along the second direction;
the measuring head assembly comprises a first slide rail, a first slide block, a connecting seat, a second slide block, a second slide rail, a measuring seat and a measuring head, the first slide rail is arranged on the top surface of the square tube along the second direction, the first slide block is movably arranged on the first slide rail, and the structure of the first slide block is matched with that of the first slide rail; the connecting seat is arranged on the first sliding block and is connected with the reading head; the second sliding block is arranged on the connecting seat along the first direction, the second sliding rail is arranged on the second sliding block along the first direction, the structure of the second sliding rail is matched with that of the second sliding block, the measuring seat is arranged on the second sliding rail, and the measuring head is arranged at the top end of the measuring seat.
2. The propeller shaft span detecting device according to claim 1, wherein: the height of the central point of the measuring head is consistent with the height of the tip of the thimble.
3. The propeller shaft span detecting device according to claim 1, wherein: the optical ruler component and the measuring head component are positioned on the same side of the deflection checking table.
4. The propeller shaft span detecting device according to claim 1, wherein: the connecting seat is L-shaped and comprises a horizontal plate and a vertical plate which are connected with each other, the horizontal plate is fixed on the first sliding block, and the vertical plate is connected with the reading head.
5. The propeller shaft span detecting device according to claim 1, wherein: the center of the end faces of the two ends of the transmission shaft workpiece is provided with a positioning hole, and the structure of the positioning hole is matched with that of the ejector pin.
6. The propeller shaft span detecting device according to claim 5, wherein: and a first groove and a second groove are respectively formed in two ends of the transmission shaft workpiece, and the width of the measuring head is smaller than the widths of the first groove and the second groove along the second direction.
7. The propeller shaft span detecting device according to claim 1, wherein: and a digital display screen is arranged on the reading head.
8. The propeller shaft span detecting device according to claim 1, wherein: the measuring head is detachably fixed at the top end of the measuring base through a fastener.
9. The propeller shaft span sensing device of claim 8, wherein: the fastener is a screw, a screw or a bolt.
10. The propeller shaft span detecting device according to any one of claims 1 to 9, wherein: the measuring head is a white steel blade.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122012206.4U CN215572722U (en) | 2021-08-25 | 2021-08-25 | Transmission shaft span detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122012206.4U CN215572722U (en) | 2021-08-25 | 2021-08-25 | Transmission shaft span detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215572722U true CN215572722U (en) | 2022-01-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122012206.4U Active CN215572722U (en) | 2021-08-25 | 2021-08-25 | Transmission shaft span detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215572722U (en) |
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2021
- 2021-08-25 CN CN202122012206.4U patent/CN215572722U/en active Active
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