An elongated shaft part detection device

Abstract

The utility model relates to detection equipment technical field, especially, a kind of slender shaft class parts detection equipment, including the detection placement station for placing workpiece to be detected being set on frame body;Rotary drive mechanism is also provided on frame body and is used to drive workpiece rotation;Corresponding workpiece to be detected is equipped with length detection part structure and radial jump detection part structure;Two bracket plates are spaced apart on frame body and along longitudinal direction, vertically rotatable support wheel is installed in pairs on the upper end of bracket plate and along horizontal direction;V-shaped design support mouth is formed between the upper side of two support wheels, two support mouths form the detection placement station, and the two ends of workpiece can be respectively overlapped in support mouth;The rotary drive mechanism includes drive wheel installed on bracket plate. The utility model has the characteristics that it can better drive slender shaft rotation and complete circle runout detection, and can be more conveniently adjusted according to detection requirements.

Description

Technical Field

[0001] This utility model relates to the field of testing equipment technology, and in particular to a testing equipment for slender shaft parts. Background Technology

[0002] Slender shafts are defined as shafts with a length-to-diameter ratio greater than 25 (i.e., L / D > 25). As industrial precision requirements increase, the demands on the precision and surface quality of slender shafts are also constantly rising; for example, precision slender shafts are required to achieve a precision within 1 μm.

[0003] After machining slender shafts, it is usually necessary to inspect their length and circular runout at different positions. However, existing inspection equipment has the following drawbacks: 1. The drive mechanism used to rotate the slender shaft for circular runout inspection is poorly designed, causing the distal end of the shaft to wobble during rotation, resulting in inaccurate circular runout detection; 2. The circular runout inspection mechanism is difficult to adjust, making it inconvenient to inspect different positions; 3. The length inspection mechanism is not simple and reasonable in its design.

[0004] Therefore, how to provide a testing device for slender shaft parts with a simpler and more reasonable structural design, which can better drive the rotation of slender shafts and complete circular runout detection, and can be more easily adjusted according to testing requirements, has become a technical problem to be solved by those skilled in the art. Utility Model Content

[0005] In view of the above-mentioned deficiencies of the prior art, the technical problem to be solved by this utility model is how to provide a slender shaft part inspection device with a simpler and more reasonable structural design, which can better drive the rotation of slender shafts and complete the circular runout detection, and can be more conveniently adjusted according to the inspection requirements.

[0006] To achieve the above objectives, this utility model provides a testing device for slender shaft parts, including a testing and placement station on a frame for placing the workpiece to be tested; a rotation drive mechanism on the frame for driving the workpiece to rotate; a length detection section and a diameter runout detection section corresponding to the workpiece to be tested; characterized in that: two support plates are spaced apart longitudinally on the frame, and vertically rotatable support wheels are installed in pairs on the upper part of the support plates in the transverse direction; a V-shaped support opening is formed between the upper sides of the two support wheels, forming the testing and placement station, and the two ends of the workpiece can overlap within the support opening; the rotation drive mechanism includes a drive wheel installed on the support plate, the drive wheel being located below the two support wheels, and the upper sides of the drive wheel can respectively rub against the two pairs of support wheels; a drive motor is also provided on the support plate, and the drive motor is connected to the drive wheel in a transmission.

[0007] In this way, when the above-described device is in operation, the two ends of the workpiece (a slender shaft-like part) are placed in the support openings formed between two pairs of support wheels on two support plates. A drive motor drives the drive wheels on the support plates to rotate. The drive wheels make frictional contact with the two support wheels and drive them to rotate, thereby causing the workpiece located between the pairs of support wheels to rotate. This rotation drive mechanism design is simpler. By using friction to drive the support wheels to rotate and then drive the workpiece to rotate, the workpiece rotation is smoother, allowing for better driving of the slender shaft and completion of circular runout detection, thus improving the accuracy and reliability of the detection.

[0008] As an optimization, the drive wheel includes a mounting wheel mounted on the bracket plate via a mounting shaft. An annular mounting groove is provided on the outer circumference of the mounting wheel, and a friction ring is installed in the mounting groove, such that the friction ring makes frictional contact with a pair of support wheels.

[0009] In this way, the structural design of the drive wheel is simpler and more reasonable, and by setting a friction ring, it can better drive the support wheel.

[0010] Furthermore, the support wheel and drive wheel are installed on one side of the bracket plate, and the drive motor is installed on the other side of the bracket plate.

[0011] As an optimization, two or more intermediate plates are installed between the two support plates on the frame. Intermediate wheels that can rotate vertically are installed in pairs on the upper part of the intermediate plates and along the horizontal direction. A V-shaped intermediate support opening is formed between the upper sides of the two intermediate wheels, so that the middle part of the workpiece overlaps in the intermediate support opening.

[0012] In this way, by setting an intermediate plate and placing intermediate wheels on the intermediate plate, the pair of intermediate wheels can support the workpiece, preventing the middle of the workpiece from sagging, thereby improving the detection accuracy.

[0013] Furthermore, there are two intermediate plates.

[0014] As an optimization, longitudinally arranged mounting rails are provided on the frame; mounting blocks are provided at the lower end of the support plate and the lower end of the middle plate, and mounting grooves are provided on the mounting blocks, so that the mounting grooves match the mounting rails and the mounting blocks can be slidably mounted on the mounting rails.

[0015] In this way, by setting up the mounting rails, it is easier to adjust the position of the bracket plate and the middle part as needed.

[0016] As an optimization, the length detection section includes a workpiece axial limiting structure correspondingly disposed at one end of the workpiece. The workpiece axial limiting structure has a limiting surface and allows one end of the workpiece to abut against the positioning surface to limit the axial position of the workpiece. The length detection section also includes a length measuring component mounted on a base plate. A longitudinal movement control mechanism is provided between the base plate and the frame and can control the longitudinal position of the length measuring component. The length measuring component has a detection block, and the detection block can abut against and be supported on the end face of the workpiece to detect the length dimension of the workpiece between the positioning surface and the detection block.

[0017] In this way, the structural design and layout of the length detection section are simpler and more reasonable, making it easier to detect the length of the workpiece.

[0018] Furthermore, the longitudinal movement control mechanism is guided by guide rails and sliders, and driven by cylinders or lead screws and nuts.

[0019] Furthermore, a transverse guide rail is provided on the base plate, a guide block is provided on the transverse guide rail, and a support bracket is provided above the guide block. The length measuring component includes a length position detector installed on the support bracket; the working end of the length position detector is provided with the detection block.

[0020] As an optimization, the workpiece axial limiting structure includes a positioning support plate installed on the frame, and a positioning shaft arranged horizontally inward is installed on the upper end of the positioning support plate, with the inner end face of the positioning shaft forming the positioning surface.

[0021] In this way, the axial limiting structure of the workpiece adopts a positioning shaft installed on the positioning support plate, which can better abut against the end face of the workpiece to achieve axial limiting.

[0022] As an optimization, the diameter runout detection section includes a laser diameter gauge mounted on the frame via a mounting bracket. There are three laser diameter gauges arranged longitudinally along the frame, and the detection end of the laser diameter gauge is set horizontally toward the workpiece.

[0023] In this way, the jump detection section adopts a laser diameter gauge, which makes installation and use more convenient, and provides better detection accuracy and reliability.

[0024] Furthermore, the frame is also equipped with a long strip-shaped placement block arranged longitudinally along the frame, and the placement block is equipped with a placement groove for placing workpieces.

[0025] Furthermore, a support platform is provided at one end of the frame for placing the display device and the operation keyboard.

[0026] In summary, the above-mentioned device structure has the advantages of simpler and more reasonable structural design, better ability to drive the rotation of slender shafts and complete circular runout detection, and easier adjustment according to detection requirements. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of the slender shaft-type parts testing equipment in a specific embodiment of this utility model.

[0028] Figure 2 yes Figure 1 A magnified view of position A in the diagram.

[0029] Figure 3 yes Figure 1 A magnified view of position B in the diagram.

[0030] Figure 4 yes Figure 1 A magnified view of position C in the diagram.

[0031] Figure 5 yes Figure 1 A schematic diagram of the structure after rotation by one angle.

[0032] Figure 6 yes Figure 1 A schematic diagram of the structure after rotating it to another angle.

[0033] Figure 7 yes Figure 6 A magnified view of position D in the diagram.

[0034] Figure 8 yes Figure 1 Top view. Detailed Implementation

[0035] The present invention will be further described below with reference to the accompanying drawings and embodiments. It should be noted that in the description of the present invention, terms such as "upper," "lower," "left," "right," "inner," and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are used only for the convenience of describing the present invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific manner. Therefore, they should not be construed as limitations on the present invention. Terms such as "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0036] like Figures 1 to 8As shown, a testing device for slender shaft parts includes a testing and placement station on a frame 1 for placing the workpiece 2 to be tested; a rotation drive mechanism is also provided on the frame for driving the workpiece to rotate; a length detection section and a diameter runout detection section are provided corresponding to the workpiece to be tested; two support plates 3 are provided on the frame at intervals along the longitudinal direction, and vertically rotatable support wheels 4 are installed in pairs on the upper part of the support plates along the transverse direction; a V-shaped support opening is formed between the upper sides of the two support wheels, and the two support openings form the testing and placement station, and the two ends of the workpiece can overlap in the support opening; the rotation drive mechanism includes a drive wheel 5 installed on the support plate, the drive wheel is located below the two support wheels, and the upper sides of the drive wheel can respectively rub against the two pairs of support wheels; a drive motor 6 is also provided on the support plate, and the drive motor is connected to the drive wheel for transmission.

[0037] In this way, when the above-described device is in operation, the two ends of the workpiece (a slender shaft-like part) are placed in the support openings formed between two pairs of support wheels on two support plates. A drive motor drives the drive wheels on the support plates to rotate. The drive wheels make frictional contact with the two support wheels and drive them to rotate, thereby causing the workpiece located between the pairs of support wheels to rotate. This rotation drive mechanism design is simpler. By using friction to drive the support wheels to rotate and then drive the workpiece to rotate, the workpiece rotation is smoother, allowing for better driving of the slender shaft and completion of circular runout detection, thus improving the accuracy and reliability of the detection.

[0038] In this specific embodiment, the drive wheel includes a mounting wheel 7 mounted on the bracket plate via a mounting shaft. An annular mounting groove is provided on the outer circumferential surface of the mounting wheel, and a friction ring 8 is installed in the mounting groove, such that the friction ring makes frictional contact with a pair of support wheels.

[0039] In this way, the structural design of the drive wheel is simpler and more reasonable, and by setting a friction ring, it can better drive the support wheel.

[0040] Furthermore, the support wheel and drive wheel are installed on one side of the bracket plate, and the drive motor is installed on the other side of the bracket plate.

[0041] In this specific embodiment, two or more intermediate plates 9 are also installed between the two support plates on the frame. Intermediate wheels 10 that can rotate vertically are installed in pairs on the upper part of the intermediate plates and in the horizontal direction. A V-shaped intermediate support opening is formed between the upper sides of the two intermediate wheels, so that the middle part of the workpiece overlaps in the intermediate support opening.

[0042] In this way, by setting an intermediate plate and placing intermediate wheels on the intermediate plate, the pair of intermediate wheels can support the workpiece, preventing the middle of the workpiece from sagging, thereby improving the detection accuracy.

[0043] Furthermore, there are two intermediate plates.

[0044] In this specific embodiment, a longitudinally arranged mounting guide rail 11 is provided on the frame; a mounting block 12 is provided at the lower end of the support plate and the lower end of the middle plate, and a mounting groove is provided on the mounting block, so that the mounting groove matches the mounting guide rail and the mounting block is slidably mounted on the mounting guide rail.

[0045] In this way, by setting up the mounting rails, it is easier to adjust the position of the bracket plate and the middle part as needed.

[0046] In this specific embodiment, the length detection part structure includes a workpiece axial limiting structure correspondingly disposed at one end of the workpiece. The workpiece axial limiting structure has a limiting surface and allows one end of the workpiece to abut against the positioning surface to limit the axial position of the workpiece. The length detection part structure also includes a length measuring component 14 mounted on the base plate 13. A longitudinal movement control mechanism is provided between the base plate and the frame and can control the longitudinal position of the length measuring component. The length measuring component has a detection block 15, and the detection block can abut against and support the end face of the workpiece to detect the length dimension of the workpiece between the positioning surface and the detection block.

[0047] In this way, the structural design and layout of the length detection section are simpler and more reasonable, making it easier to detect the length of the workpiece.

[0048] Furthermore, the longitudinal movement control mechanism is guided by guide rails and sliders, and driven by cylinders or lead screws and nuts.

[0049] Furthermore, a transverse guide rail 16 is provided on the base plate, a guide block 17 is provided on the transverse guide rail, a support bracket 18 is provided above the guide block, and the length measuring component includes a length position detector 19 installed on the support bracket; the working end of the length position detector is provided with the detection block.

[0050] In this specific embodiment, the workpiece axial limiting structure includes a positioning support plate 20 installed on the frame, and a positioning shaft 21 arranged horizontally inward is installed on the upper end of the positioning support plate, with the inner end face of the positioning shaft forming the positioning surface.

[0051] In this way, the axial limiting structure of the workpiece adopts a positioning shaft installed on the positioning support plate, which can better abut against the end face of the workpiece to achieve axial limiting.

[0052] In this specific embodiment, the diameter runout detection section includes a laser diameter gauge 23 mounted on the frame via a mounting bracket 22. There are three laser diameter gauges arranged longitudinally along the frame, and the detection end of the laser diameter gauge is set horizontally toward the workpiece.

[0053] In this way, the jump detection section adopts a laser diameter gauge, which makes installation and use more convenient, and provides better detection accuracy and reliability.

[0054] Furthermore, a placement block 24, which is long and rectangular and arranged longitudinally along the frame, is provided on the frame. The placement block has a placement groove for placing workpieces.

[0055] Furthermore, a support platform 25 is provided at one end of the frame for placing the display device 26 and the operation keyboard 27.

[0056] In summary, the above-mentioned device structure has the advantages of simpler and more reasonable structural design, better ability to drive the rotation of slender shafts and complete circular runout detection, and easier adjustment according to detection requirements.

[0057] The preferred embodiments of this utility model have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of this utility model without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of this utility model through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. A testing device for slender shaft parts, comprising a testing and placement station on a frame for placing the workpiece to be tested; a rotation drive mechanism on the frame for driving the workpiece to rotate; and a length detection section and a radial runout detection section corresponding to the workpiece to be tested; characterized in that; Two support plates are spaced apart longitudinally on the frame. Vertically rotatable support wheels are installed in pairs on the upper part of the support plates in the transverse direction. A V-shaped support opening is formed between the upper sides of the two support wheels, forming the inspection placement station. The two ends of the workpiece can overlap in the support opening. The rotation drive mechanism includes a drive wheel installed on the support plate. The drive wheel is located below the two support wheels, and its upper sides can respectively make frictional contact with the two pairs of support wheels. A drive motor is also provided on the support plate, and the drive motor is connected to the drive wheel for transmission.

2. The testing equipment for slender shaft parts as described in claim 1, characterized in that; The drive wheel includes a mounting wheel mounted on a bracket plate via a mounting shaft. An annular mounting groove is provided on the outer circumference of the mounting wheel, and a friction ring is installed in the mounting groove, such that the friction ring makes frictional contact with a pair of support wheels.

3. The testing equipment for slender shaft parts as described in claim 1, characterized in that; Two or more intermediate plates are installed between the two support plates on the frame. At the upper end of the intermediate plates and in pairs along the horizontal direction, there are vertically rotating intermediate wheels. A V-shaped intermediate support opening is formed between the upper sides of the two intermediate wheels, so that the middle part of the workpiece overlaps in the intermediate support opening.

4. The testing equipment for slender shaft parts as described in claim 3, characterized in that; The frame is equipped with longitudinally arranged mounting rails; the lower end of the support plate and the lower end of the middle plate are each equipped with a mounting block, and the mounting block is equipped with a mounting groove, which matches the mounting rail and allows the mounting block to be slidably mounted on the mounting rail.

5. The testing equipment for slender shaft parts as described in claim 1, characterized in that; The length detection section includes a workpiece axial limiting structure correspondingly disposed at one end of the workpiece. The workpiece axial limiting structure has a limiting surface and allows one end of the workpiece to abut against the positioning surface to limit the axial position of the workpiece. The length detection section also includes a length measuring component mounted on a base plate. A longitudinal movement control mechanism is provided between the base plate and the frame and can control the longitudinal position of the length measuring component. The length measuring component has a detection block, and the detection block can abut against and support the end face of the workpiece to detect the length dimension of the workpiece between the positioning surface and the detection block.

6. The testing equipment for slender shaft parts as described in claim 5, characterized in that; The workpiece axial limiting structure includes a positioning support plate installed on the frame, and a positioning shaft arranged horizontally inward is installed on the upper end of the positioning support plate, with the inner end face of the positioning shaft forming the positioning surface.

7. The testing equipment for slender shaft parts as described in claim 5, characterized in that; The diameter runout detection section includes a laser diameter gauge mounted on a frame via a mounting bracket. There are three laser diameter gauges arranged longitudinally along the frame, with the detection end of the laser diameter gauge facing the workpiece horizontally.

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