Valve rod detection workbench

Abstract

The utility model discloses a valve rod detection workbench which comprises an installation platform, a clamping seat is fixedly installed on the installation platform, a clamping device for clamping a valve rod is installed on the clamping seat in a rotating mode, and the clamping device is driven by a clamping driving power device to rotate. A detection device for detecting the valve rod is further arranged on the mounting platform, the detection device is movably mounted on the mounting platform, and a laser irradiation device for irradiating the valve rod is arranged at the other end, directly facing the clamping device in the longitudinal direction, of the mounting platform; according to the workbench, the valve rod can be rapidly detected, the detection efficiency is improved, clamping is convenient, and the use cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of valve assembly, in particular to a valve detection workbench. Background Art

[0002] The regulating valve belongs to the control valve series. Its main function is to adjust the pressure, flow, temperature and other parameters of the medium. The good mechanical properties of the valve play a vital role in the control accuracy of the regulating valve. Therefore, the matching accuracy of each component of the valve during the assembly process is very important. The valve stem is an important component of the regulating valve. Due to the long length of the valve stem, the coaxiality and circular runout of the valve stem need to be tested during production to ensure that it meets the production requirements.

[0003] Patent No. 202322233574.0 discloses a valve stem coaxiality detection platform, which clamps the valve stem through a clamping device, and then the first screw and the second screw rotate to drive the sliding block that clamps the valve stem and the sliding block that supports the detection device, so that the two sliding blocks move relative to each other, and the detection device can effectively detect the valve stem; the detection platform requires a motor to drive the sliding block to move, and a transmission structure is required between the motor and the sliding block, which greatly increases the cost of use and makes the structure complicated. During detection, the clamping device is required to clamp the valve stem and rotate and move at the same time, and the detection device will also move synchronously, and detection will be carried out from the end face of the valve stem. The valve stem is long, so the detection time will also be longer, affecting the detection efficiency. Utility Model Content

[0004] The technical problem to be solved by the utility model is: a valve stem detection workbench, which can quickly complete the detection of the valve stem, improve the detection efficiency, and is convenient for clamping, thereby reducing the use cost.

[0005] In order to solve the above technical problems, the technical solution of the utility model is: a valve stem detection workbench, comprising a mounting platform, a clamping seat is fixedly installed on the mounting platform, a clamping device for clamping the valve stem is rotatably installed on the clamping seat, and the clamping device is driven to rotate by a clamping drive power device. A detection device for detecting the valve stem is also provided on the mounting platform, and the detection device is movably installed on the mounting platform. A laser irradiation device for irradiating the valve stem is provided at the other end of the mounting platform located longitudinally opposite to the clamping device.

[0006] As a preferred solution, a mounting seat is provided below the mounting platform, and the mounting platform is horizontally mounted on the mounting seat via a horizontal adjustment device.

[0007] As a preferred solution, the clamping device is a claw chuck, which is rotatably mounted on the clamping seat through a rotating bearing. The clamping drive power device includes a rotating motor, which is mounted on the clamping seat to drive the claw chuck to rotate.

[0008] As a preferred solution, the detection device includes a vertical detection column, which is fixedly mounted on a magnetic base, and the magnetic base is movably magnetically mounted on a mounting platform. A detection connecting rod is installed on the detection column for lifting and adjustment, and the detection connecting rod swings horizontally back and forth around the center of the detection column. The free end of the detection connecting rod is provided with a lifting rod for lifting and adjustment, and a measuring dial indicator is fixedly connected to the bottom of the lifting rod, and the dial indicator is in contact with the surface of the valve stem.

[0009] As a preferred solution, the laser irradiation device includes an irradiation bracket fixed on the mounting platform, and a laser locator facing the end face of the valve stem is fixedly mounted on the irradiation bracket.

[0010] As a preferred solution, the level adjustment device includes a plurality of adjustment holes evenly arranged on the mounting platform, and the inner threads of the adjustment holes are threaded with adjustment bolts that cooperate with the threads of the mounting seat.

[0011] After adopting the above technical scheme, the effect of the utility model is as follows: since the valve stem detection workbench includes a mounting platform, a clamping seat is fixedly installed on the mounting platform, and a clamping device for clamping the valve stem is rotatably installed on the clamping seat, and the clamping device is driven to rotate by a clamping driving power device, the mounting platform is also provided with a detection device for detecting the valve stem, and the detection device is movably mounted on the mounting platform, and a laser irradiation device is provided at the other end of the mounting platform that is located opposite to the clamping device in the longitudinal direction to irradiate the valve stem; first, the valve stem is clamped by the clamping device, and then irradiated by the laser irradiation device, so that it can be reflected whether the coaxiality of the valve stem is good, and then the detection device is moved to detect the circular runout of the valve stem, and the clamping driving power device drives the valve stem to rotate. After irradiation by the laser irradiation device and detection by the detection device, the defects of the valve stem can be quickly detected; the workbench can quickly complete the detection of the valve stem, improve the detection efficiency, and is convenient to clamp, reducing the use cost.

[0012] Since a mounting seat is provided below the mounting platform, the mounting platform is horizontally mounted on the mounting seat through a horizontal adjustment device; the horizontal adjustment device can ensure that the clamping device is installed horizontally, so that the valve stem can also be clamped horizontally, thereby improving detection accuracy.

[0013] Since the clamping device is a claw chuck, the claw chuck is rotatably mounted on the clamping seat through a rotating bearing, and the clamping drive power device includes a rotating motor, which is mounted on the clamping seat to drive the claw chuck to rotate; the valve stem can be accurately clamped by the claw chuck at the center of the claw chuck, and the rotation is stable.

[0014] Furthermore, the detection device includes a vertical detection column, the detection column is fixedly mounted on a magnetic base, the magnetic base is movably magnetically mounted on a mounting platform, a detection connecting rod is mounted on the detection column for lifting and adjusting, the detection connecting rod swings horizontally back and forth around the center of the detection column, the free end of the detection connecting rod is provided with a lifting and adjusting lifting rod, a measuring dial indicator is fixedly connected to the bottom of the lifting rod, and the dial indicator is in contact with the surface of the valve stem; since the valve stem is very long, the moving magnetic base enables the measuring dial indicator to continuously detect the surface of the valve stem, thereby ensuring the accuracy of the detection and ease of use.

[0015] Furthermore, since the laser irradiation device includes an irradiation bracket fixed on the mounting platform, a laser locator facing the valve stem end face is fixedly mounted on the irradiation bracket; the level of the laser irradiation is ensured during detection, so that the detection result can be quickly observed after the valve stem end face is projected.

[0016] Furthermore, the level adjustment device comprises a plurality of adjustment holes evenly arranged on the mounting platform, wherein the inner threads of the adjustment holes are provided with adjustment bolts which cooperate with the threads of the mounting seat; the fluctuation of the mounting platform is controlled by turning the adjustment bolts, thereby ensuring the levelness of the mounting platform. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0018] Figure 1 It is a three-dimensional diagram of an embodiment of the utility model;

[0019] Figure 2 It is a structural schematic diagram of an embodiment of the utility model;

[0020] In the attached figure: 1. Mounting platform; 2. Clamping seat; 3. Valve stem; 4. Mounting seat; 5. Claw chuck; 6. Rotating bearing; 7. Detection column; 8. Magnetic seat; 9. Detection connecting rod; 10. Lifting rod; 11. Measuring dial indicator; 12. Switch device; 13. Locking handle; 14. Irradiation bracket; 15. Laser locator; 16. Adjustment hole; 17. Adjustment bolt. DETAILED DESCRIPTION

[0021] The longitudinal direction is the extending direction of the valve stem 3 when it is clamped.

[0022] The present invention will be described in further detail below through specific embodiments.

[0023] like Figure 1 and Figure 2As shown, a valve stem 3 detection workbench includes a mounting platform 1, a clamping seat 2 is fixedly mounted on the mounting platform 1, a clamping device for clamping the valve stem 3 is rotatably mounted on the clamping seat 2, and the clamping device is driven to rotate by a clamping drive power device. The mounting platform 1 is also provided with a detection device for detecting the valve stem 3, and the detection device is movably mounted on the mounting platform 1. The other end of the mounting platform 1, which is located longitudinally opposite to the clamping device, is provided with a laser irradiation device for irradiating the valve stem 3.

[0024] In this embodiment, a mounting seat 4 is provided under the mounting platform 1, and the mounting platform 1 is horizontally mounted on the mounting seat 4 through a horizontal adjustment device; the horizontal adjustment device can ensure that the clamping device is installed horizontally, so that the valve stem 3 can also be clamped horizontally, thereby improving the detection accuracy.

[0025] like Figure 2 As shown, the clamping device is a claw chuck 5, which is rotatably mounted on the clamping seat 2 through a rotating bearing 6, and the clamping drive power device includes a rotating motor, which is mounted on the clamping seat 2 to drive the claw chuck 5 to rotate; the clamping seat 2 is fixed to the mounting platform 1 by screws, and the claw chuck 5 has four claws or three clamps to ensure that it is in the center when clamping the valve stem 3, so that it can be accurate and stable when rotating; the claw chuck 5 is an existing structure on the market, so it is not described in detail in the text.

[0026] like Figure 1 and Figure 2 As shown, the detection device includes a vertical detection column 7, which is fixedly mounted on a magnetic base 8, and the magnetic base 8 is movably mounted on the mounting platform 1 by magnetic attraction. A detection connecting rod 9 is installed on the detection column 7 for lifting and adjustment, and the detection connecting rod 9 swings back and forth horizontally around the center of the detection column 7. The free end of the detection connecting rod is provided with a lifting and adjusting lifting rod 10, and a measuring dial indicator 11 is fixedly connected to the bottom of the lifting rod 10, and the dial indicator is in contact with the surface of the valve stem 3; a switch device 12 is provided on the magnetic base 8 to open or close Close the magnetic force, so that the magnetic base 8 can be controlled to move or fix on the mounting platform 1, thereby changing the position of the measuring dial indicator 11, and any area on the valve stem 3 can be measured, and a locking handle 13 is installed through the thread on the detection connecting rod 9. By rotating the locking handle 13 to contact the detection column 7, the detection connecting rod 9 can be fixed. Then a locking handle 13 is also installed through the thread between the lifting rod 10 and the detection connecting rod 9. By rotating the locking handle 13 to contact the lifting rod 10, the height of the lifting rod 10 can be adjusted, which is easy to use.

[0027] like Figure 1As shown, the laser irradiation device includes an irradiation bracket 14 fixed on the mounting platform 1, and a laser locator 15 facing the end face of the valve stem 3 is fixedly installed on the irradiation bracket 14; after the laser locator 15 irradiates the end face of the valve stem 3, the coaxiality of the valve stem 3 is judged by the projected shadow, which can quickly improve the detection speed. At the same time, the irradiation bracket 14 can also ensure the level of laser irradiation during detection and ensure the detection accuracy.

[0028] In this embodiment, the level adjustment device includes a plurality of adjustment holes 16 evenly arranged on the mounting platform 1, and the inner threads of the adjustment holes 16 are installed with adjustment bolts 17 that are threadedly matched with the mounting seat 4; the mounting platform 1 is rectangular, and adjustment holes 16 are provided at the four corners of the mounting platform 1, so that the adjustment bolts 17 are screwed into the adjustment holes 16 and are threadedly matched with the mounting seat 4 to adjust the mounting platform 1 horizontally, thereby ensuring that the mounting platform 1 is level.

[0029] The working principle of this embodiment is as follows: first, rotate the adjusting bolt 17 to make the mounting platform 1 horizontal, open the clamping claw chuck 5 to clamp the valve stem 3, then use the laser locator 15 to illuminate and project the end face of the valve stem 3, then turn the motor to drive the valve stem 3 to rotate, move the measuring dial indicator 11 to measure the places where there are deviations during illumination and projection, and can also measure different positions of the valve stem 3.

[0030] The above-described embodiments are merely descriptions of preferred implementations of the present invention and are not intended to limit the scope of the present invention. Various modifications and alterations to the technical solutions of the present invention, without departing from the spirit of the present invention, should fall within the scope of protection defined in the claims of the present invention.

Claims

1. A valve stem inspection workbench, including a mounting platform, characterized in that: A clamping seat is fixedly installed on the mounting platform, and a clamping device for clamping the valve stem is rotatably installed on the clamping seat. The clamping device is driven to rotate by a clamping drive power device. A detection device for detecting the valve stem is also provided on the mounting platform. The detection device is movably mounted on the mounting platform. A laser irradiation device for irradiating the valve stem is provided at the other end of the mounting platform located longitudinally opposite to the clamping device.

2. A valve stem inspection workbench as claimed in claim 1, characterized in that: A mounting seat is provided below the mounting platform, and the mounting platform is horizontally mounted on the mounting seat via a horizontal adjustment device.

3. A valve stem inspection workbench as claimed in claim 2, characterized in that: The clamping device is a claw chuck, which is rotatably mounted on a clamping seat via a rotating bearing. The clamping drive power device includes a rotating motor, which is mounted on the clamping seat to drive the claw chuck to rotate.

4. A valve stem inspection workbench as claimed in claim 3, characterized in that: The detection device includes a vertical detection column, which is fixedly mounted on a magnetic base, and the magnetic base is movably magnetically mounted on a mounting platform. A detection connecting rod is installed on the detection column for lifting and adjustment, and the detection connecting rod swings back and forth horizontally around the center of the detection column. The free end of the detection connecting rod is provided with a lifting and adjusting lifting rod, and a measuring dial indicator is fixedly connected to the bottom of the lifting rod, and the dial indicator is in contact with the surface of the valve stem.

5. A valve stem inspection workbench as claimed in claim 4, characterized in that: The laser irradiation device comprises an irradiation bracket fixed on the mounting platform, and a laser locator facing the end face of the valve stem is fixedly mounted on the irradiation bracket.

6. A valve stem inspection workbench as claimed in claim 5, characterized in that: The level adjustment device comprises a plurality of adjustment holes evenly arranged on the mounting platform, wherein the inner threads of the adjustment holes are provided with adjustment bolts matched with the threads of the mounting seat.

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