A contour detection device for air compressor machining parts
By combining a rotary drive mechanism and a dual-part fixing mechanism with a laser measuring instrument, the problems of low efficiency and low accuracy in air compressor parts inspection are solved, achieving efficient and accurate multi-workpiece inspection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-22
- Publication Date
- 2026-04-14
AI Technical Summary
The existing air compressor processing parts have low inspection efficiency and insufficient inspection accuracy, especially due to the error in inspection results caused by inconsistent spring stiffness coefficients and uneven manual lifting. In addition, the existing equipment is only designed with a single inspection station.
It adopts a rotary drive mechanism and a dual-part fixing mechanism, combined with a laser measuring instrument for automatic detection. The laser measuring instrument is driven by a drive motor for scanning, and is equipped with a level sensor and a limit mechanism to ensure accuracy. It also adapts to different part thicknesses through a vertical adjustment mechanism.
It improves the accuracy and efficiency of inspection, and ensures stability during long-term use and the ability to inspect multiple workpieces simultaneously.
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Figure CN120651153B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of flatness testing technology for air compressor parts, specifically to a height detection device for machined air compressor parts. Background Technology
[0002] An air compressor is a gas generating device that converts mechanical energy into gas pressure energy. As a gas power source conversion device, air compressors are widely used in various aspects of production and daily life. For example, they have numerous applications in construction, steel, mining, and chemical plants. In particular, twin-screw air compressors are widely used in many industrial fields such as machinery, metallurgy, electronics, pharmaceuticals, packaging, chemicals, food, mining, textiles, and transportation, and have become the mainstream product for compressed air.
[0003] During the processing of air compressor parts, in order to ensure the quality of the workpiece, the machine needs to inspect the flatness of its outer surface to obtain detailed information on the defects on the workpiece surface and adjust the processing according to the defects. However, in the current technology, the inspection is generally carried out manually using a level, which is too inefficient and the quality of the inspection is poor.
[0004] A search revealed Chinese patent CN221992609U, which discloses a height detection device for air compressor parts. The part is clamped and fixed by two clamping plates. After the part is placed, a push rod pushes upwards, thereby pushing a push plate. The push plate pushes a telescopic rod, and during this upward push, a spring is compressed, generating a certain elastic force on a pressure sensor. The pressure sensor detects the elastic force value in real time and displays it on a screen above the fixed plate. When the operator pushes the part, a change in the value indicates that the surface flatness of the workpiece is not up to standard. However, the following problems still exist:
[0005] 1. The surface flatness of the parts will not vary greatly. Using springs in conjunction with pressure sensors may result in uneven structures being detected even on flat parts due to the inconsistent spring constants of different springs. Furthermore, the physical properties of springs will degrade after prolonged use, and the degree of degradation will certainly be inconsistent between different springs, which will exacerbate the aforementioned problems and adverse effects.
[0006] 2. When using a manual lifting method to compress the spring, uneven force applied by the hand can affect the accuracy of the test results.
[0007] 3. Only one inspection station was designed, resulting in low inspection efficiency. Summary of the Invention
[0008] To address the shortcomings of existing technologies, this invention provides a height detection device for air compressor parts, primarily to solve the problems of low detection efficiency and insufficient accuracy of spring-based detection.
[0009] To achieve the above objectives, the present invention provides the following technical solution:
[0010] A height detection device for air compressor parts includes a base plate body. A rotary drive mechanism is provided at the upper end of the base plate body. Two sets of part fixing mechanisms that can be automatically adjusted to a horizontal state are provided between the rotary drive mechanisms. A limiting mechanism for locking the position of the part fixing mechanisms is provided on the side of the rotary drive mechanism. A horizontal drive mechanism is provided on the base plate body, and a vertical adjustment mechanism is provided on one side of the horizontal drive mechanism. A laser measuring mechanism is provided on the side of the vertical adjustment mechanism facing the part fixing mechanisms.
[0011] As a further embodiment of the present invention, the rotary drive mechanism includes a left fixed plate and a right fixed plate symmetrically welded and fixed to both sides of the base plate body. A circular side plate is rotatably connected between the left fixed plate and the right fixed plate via a bearing. The two sets of side plates are connected by a component fixing mechanism. Six sets of hollow slots arranged in a circular array are provided on the side plate. A drive motor is bolted to the outer side of the left fixed plate. The output shaft of the drive motor and the side plate are connected by a flat key transmission.
[0012] As a further embodiment of the present invention, the part fixing mechanism includes an outer frame, which is rotatably connected to two sets of side plates via bearings, and a hollow support plate is rotatably connected between the outer frames via bearings, and a solid counterweight is integrally formed at the lower part of the support plate.
[0013] As a further embodiment of the present invention, the upper part of the support plate is provided with four sets of symmetrically arranged sliding grooves, a compression spring is welded inside the sliding groove, a slider is welded to one end of the compression spring, and a top plate is integrally formed on the upper end of the slider, and a level sensor is installed on the upper end of the support plate.
[0014] As a further embodiment of the present invention, the limiting mechanism includes an L-shaped rod integrally formed on the left fixed plate and the right fixed plate. A guide rod is inserted into one end of the L-shaped rod. A compression spring is welded inside the L-shaped rod. The end of the compression spring is welded and fixed to the guide rod. A spherical snap-fit part is integrally formed at the end of the guide rod. A snap-fit hole is opened on the outer side of the outer frame.
[0015] As a further embodiment of the present invention, the horizontal drive mechanism includes an outer shell and a sliding seat. The outer shell has a sliding cavity inside, and a threaded rod is rotatably connected to the sliding cavity through a bearing. A second drive motor is installed on the outer side of the outer shell. The second drive motor is connected to the threaded rod in a transmission connection. Four sets of rollers are installed on the lower part of the sliding seat, and a threaded seat is provided on the sliding seat. The threaded seat and the threaded rod are threadedly connected.
[0016] As a further embodiment of the present invention, the vertical adjustment mechanism includes a support column integrally formed on the upper part of the sliding seat, with limit strips integrally formed on both sides of the upper part of the support column, and a toothed rack integrally formed on the outer side of the limit strip.
[0017] As a further embodiment of the present invention, the laser measuring mechanism includes a base, on which a slot corresponding to the limiting strip is provided is provided. A square hole is provided on the side of the slot, and a square rod is inserted into the square hole. An insertion plate is integrally formed on the outer end of the square rod, and a toothed plate is welded to the other end of the square rod. A compression spring is sleeved on the outside of the square rod.
[0018] As a further embodiment of the present invention, the two ends of the compression spring three abut against the inner wall of the slot and the toothed plate respectively, and a vertical plate is welded to the upper part of the base, and a laser measuring instrument body is fixedly installed on one side of the vertical plate.
[0019] Compared with the prior art, the present invention provides a height detection device for parts processed by an air compressor, which has the following beneficial effects:
[0020] 1. This invention utilizes a drive motor to drive the laser measuring instrument body to scan along the upper edge of the part, thereby detecting whether the part is at the same height. The detection results are accurate and will not affect the accuracy of the detection even after long-term use.
[0021] 2. In this invention, the top plate in the part fixing mechanism presses the side of the part together under the action of the compression spring, and a counterweight is provided at the bottom of the support plate. The counterweight can keep the support plate and the upper part of the part horizontal, which improves the accuracy of the detection results of the laser measuring instrument.
[0022] 3. This invention improves testing efficiency by designing two part fixing mechanisms. When a part on one part fixing mechanism is being tested, the next workpiece to be tested can be mounted on the part fixing mechanism to be tested.
[0023] 4. The part fixing mechanism of the present invention can be locked by the side limiting mechanism. The guide rod in the limiting mechanism can be inserted into the snap-fit hole of the outer frame under the action of the compression spring. In this way, when we install the next workpiece to be tested on the part fixing mechanism to be tested, it will not affect the part being tested.
[0024] 5. The present invention can adjust the height of the vertical adjustment mechanism through the vertical adjustment mechanism, and can adjust the laser measuring instrument body to a suitable height according to the thickness of the part, so that the laser measuring instrument can test different types of parts. Attached Figure Description
[0025] Figure 1 This is a schematic diagram of the front three-dimensional structure of a height detection device for air compressor parts proposed in this invention.
[0026] Figure 2 This is a three-dimensional structural diagram of the rear side of a height detection device for air compressor parts proposed in this invention.
[0027] Figure 3 This is a schematic diagram of the front three-dimensional structure of the part fixing mechanism of the equal height detection device for air compressor processed parts proposed in this invention.
[0028] Figure 4 This is a front three-dimensional structural diagram of the vertical adjustment mechanism and the horizontal drive mechanism of the equal height detection device for air compressor processed parts proposed in this invention;
[0029] Figure 5 This is a front three-dimensional structural diagram of the laser measurement mechanism of the contour detection device for air compressor parts proposed in this invention.
[0030] Figure 6 This invention proposes a height detection device for machined parts of an air compressor. Figure 2 A magnified structural diagram of part A.
[0031] In the diagram: 1. Base plate body; 2. Rotary drive mechanism; 3. Part fixing mechanism; 4. Limiting mechanism; 5. Horizontal drive mechanism; 6. Vertical adjustment mechanism; 7. Laser measuring mechanism; 201. Left fixing plate; 202. Right fixing plate; 203. Side plate; 204. Hollowed-out groove; 205. Drive motor one; 301. Outer frame; 302. Support plate; 303. Counterweight; 304. Slide groove; 305. Compression spring one; 306. Slider; 307. Top plate; 308. Level sensor; 309. Snap-fit hole; 401. L-shaped rod; 402, guide rod; 403, compression spring II; 404, spherical snap-fit part; 501, outer shell; 502, sliding cavity; 503, threaded rod; 504, drive motor II; 505, lower slide seat; 506, roller; 507, threaded seat; 601, support column; 602, limit bar; 603, rack; 701, base; 702, slot; 703, square hole; 704, square rod; 705, plug-in plate; 706, toothed plate; 707, compression spring III; 708, upright plate; 709, laser measuring instrument body. Detailed Implementation
[0032] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
[0033] The component designations used in this document, such as "first" and "second," are merely for distinguishing the described objects and do not have any sequential or technical meaning. The terms "connection" and "linkage" used in this invention, unless otherwise specified, include both direct and indirect connections (linkages). In the description of this invention, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing the invention and simplifying the description. They 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 orientation, and therefore should not be construed as limiting the invention.
[0034] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0035] Reference Figures 1-6 A height detection device for air compressor processed parts includes a base plate body 1, a rotary drive mechanism 2 is provided at the upper end of the base plate body 1, two sets of part fixing mechanisms 3 that can be automatically adjusted to a horizontal state are provided between the rotary drive mechanisms 2, a limiting mechanism 4 is provided on the side of the rotary drive mechanism 2 to lock the position of the part fixing mechanism 3, a horizontal drive mechanism 5 is provided on the base plate body 1, a vertical adjustment mechanism 6 is provided on one side of the horizontal drive mechanism 5, and a laser measuring mechanism 7 is provided on the side of the vertical adjustment mechanism 6 facing the part fixing mechanism 3.
[0036] In particular, in this invention, the rotary drive mechanism 2 includes a left fixed plate 201 and a right fixed plate 202 symmetrically welded and fixed to both sides of the base plate body 1. A circular side plate 203 is rotatably connected between the left fixed plate 201 and the right fixed plate 202 via a bearing. The two sets of side plates 203 are connected by a parts fixing mechanism 3. Six sets of hollow slots 204 arranged in a circular array are provided on the side plate 203. The side plate 203 can reduce the mass of the side plate 203, thereby lowering the overall center of gravity of the device and making the device more stable. A drive motor 205 is bolted to the outside of the left fixed plate 201. The output shaft of the drive motor 205 and the side plate 203 are connected by a flat key transmission.
[0037] It should be noted that the part fixing mechanism 3 includes an outer frame 301, which is rotatably connected to two sets of side plates 203 via bearings. A hollow support plate 302 is rotatably connected between the outer frames 301 via bearings. A solid counterweight 303 is integrally formed at the lower part of the support plate 302. The counterweight 303 can keep the support plate 302 horizontal, which makes it easier for the laser measuring mechanism 7 to perform measurements smoothly.
[0038] In particular, in this invention, the upper part of the support plate 302 is provided with four sets of symmetrically arranged sliding grooves 304. A compression spring 305 is welded inside the sliding groove 304. A slider 306 is welded to one end of the compression spring 305. The upper end of the slider 306 is integrally formed with a top plate 307. The two top plates 307 can fix the part to be tested on the support plate 302 under the action of the compression spring 305. A level sensor 308 is installed on the upper end of the support plate 302. The level sensor 308 is a magnetic bubble level. The position of the part to be tested can be adjusted by the bubble level above the level sensor 308 until the bubble level is centered.
[0039] It should be noted that the limiting mechanism 4 includes an L-shaped rod 401 integrally formed on the left fixed plate 201 and the right fixed plate 202. One end of the L-shaped rod 401 is inserted into a guide rod 402. A compression spring 403 is welded inside the L-shaped rod 401. The end of the compression spring 403 is welded and fixed to the guide rod 402. The end of the guide rod 402 is integrally formed with a spherical locking part 404. A spherical locking hole 309 is opened on the outer side of the outer frame 301. When the drive motor 205 drives the part fixing mechanism 3 to the lowest point, the spherical locking part 404 at the end of the guide rod 402 will automatically insert into the locking hole 309 under the action of the compression spring 403 to lock. In this way, the next part to be tested can be installed on the upper part fixing mechanism 3 while the part on the lower part fixing mechanism 3 is being tested.
[0040] In particular, in this invention, the horizontal drive mechanism 5 includes a housing 501 and a sliding seat 505. A sliding cavity 502 is provided inside the housing 501. A threaded rod 503 is rotatably connected to the sliding cavity 502 through a bearing. A second drive motor 504 is installed on the outside of the housing 501. The second drive motor 504 and the threaded rod 503 are connected in a transmission connection. Four sets of rollers 506 are installed on the lower part of the sliding seat 505. A threaded seat 507 is provided on the sliding seat 505. The threaded seat 507 and the threaded rod 503 are threadedly connected. The forward and reverse rotation of the second drive motor 504 can drive the sliding seat 505 to move back and forth. The rollers 506 can make the movement of the sliding seat 505 smoother.
[0041] It should be noted that the vertical adjustment mechanism 6 includes a support column 601 integrally formed on the upper part of the sliding seat 505, and limit strips 602 integrally formed on both sides of the upper part of the support column 601. A rack 603 is integrally formed on the outer side of the limit strip 602.
[0042] In particular, in this invention, the laser measuring mechanism 7 includes a base 701, on which a slot 702 corresponding to the limiting strip 602 is provided. A square hole 703 is provided on the side of the slot 702. A square rod 704 is inserted into the square hole 703. An insertion plate 705 is integrally formed on the outer end of the square rod 704. A toothed plate 706 is welded to the other end of the square rod 704. A compression spring 707 is sleeved on the outside of the square rod 704.
[0043] It should be noted that the two ends of the compression spring 707 abut against the inner wall of the slot 702 and the toothed plate 706, respectively. A vertical plate 708 is welded to the upper part of the base 701, and a laser measuring instrument body 709 is fixedly mounted on one side of the vertical plate 708. The toothed plate 706 in the base 701 below the vertical plate 708 engages with the rack 603 under the action of the compression spring 707. (Refer to...) Figure 4 The upper surface of the teeth on the rack 603 is horizontal, so the laser measuring mechanism 7 will not fall downwards and can slide directly upwards. However, when it needs to slide downwards, the plug-in plates 705 on both sides need to be pulled outwards.
[0044] The present invention is used in the following steps:
[0045] S1: By controlling the rotation of the drive motor 205, either of the two part fixing mechanisms 3 is rotated to the lowest point, and then the part fixing mechanism 3 is locked by the limit mechanism 4.
[0046] S2: Pull the top plate 307 outward, install the part to be tested on the upper part fixing mechanism 3, observe the level sensor 308, adjust the position of the part to be tested so that the level bubble is in the center, and the adjustment is complete.
[0047] S3: By controlling the rotation of the drive motor 205, the assembled parts fixing mechanism 3 is rotated to the lowest point and locked.
[0048] S4: Adjust the height of the laser measuring instrument body 709 by pulling the base 701 so that the height of the laser measuring instrument body 709 is slightly higher than the upper surface of the part to be tested.
[0049] S5: Start the drive motor 504 and the laser measuring instrument body 709 for testing. During the test, a new part to be tested can be installed on the upper part fixing mechanism 3, and the test can be completed alternately.
[0050] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0051] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the appended claims.
Claims
1. A height detection device for parts processed by an air compressor, comprising a base plate body (1), characterized in that, A rotary drive mechanism (2) is provided at the upper end of the base plate body (1). Two sets of part fixing mechanisms (3) are provided between the rotary drive mechanisms (2). A limiting mechanism (4) is provided on the side of the rotary drive mechanism (2) to lock the position of the part fixing mechanism (3). A horizontal drive mechanism (5) is provided on the base plate body (1). A vertical adjustment mechanism (6) is provided on one side of the horizontal drive mechanism (5). A laser measurement mechanism (7) is provided on the side of the vertical adjustment mechanism (6) facing the part fixing mechanism (3). The rotary drive mechanism (2) includes a left fixed plate (201) and a right fixed plate (202) symmetrically welded and fixed on both sides of the base plate body (1). A circular side plate (203) is rotatably connected between the left fixed plate (201) and the right fixed plate (202) through a bearing. The two sets of side plates (203) are connected by a parts fixing mechanism (3). Six sets of hollow slots (204) arranged in a ring array are opened on the side plate (203). A drive motor (205) is installed on the outside of the left fixed plate (201) by bolts. The output shaft of the drive motor (205) and the side plate (203) are connected by a flat key transmission. The part fixing mechanism (3) includes an outer frame (301), which is rotatably connected to two sets of side plates (203) via bearings, and a hollow support plate (302) is rotatably connected between the outer frames (301) via bearings, and a solid counterweight (303) is integrally formed at the lower part of the support plate (302). The upper part of the support plate (302) is provided with four sets of symmetrically arranged sliding grooves (304). A compression spring (305) is welded inside the sliding groove (304). A slider (306) is welded to one end of the compression spring (305). A top plate (307) is integrally formed on the upper end of the slider (306). A level sensor (308) is installed on the upper end of the support plate (302). The horizontal drive mechanism (5) includes an outer shell (501) and a lower slide seat (505). The outer shell (501) has a sliding cavity (502) inside. A threaded rod (503) is rotatably connected to the sliding cavity (502) through a bearing. A second drive motor (504) is installed on the outer side of the outer shell (501). The second drive motor (504) and the threaded rod (503) are connected in a transmission. Four sets of rollers (506) are installed on the lower part of the lower slide seat (505). A threaded seat (507) is provided on the lower slide seat (505). The threaded seat (507) and the threaded rod (503) are threadedly connected.
2. The height detection device for air compressor processed parts according to claim 1, characterized in that, The limiting mechanism (4) includes an L-shaped rod (401) integrally formed on the left fixed plate (201) and the right fixed plate (202). One end of the L-shaped rod (401) is inserted with a guide rod (402). A compression spring (403) is welded inside the L-shaped rod (401). The end of the compression spring (403) is welded and fixed to the guide rod (402). The end of the guide rod (402) is integrally formed with a spherical snap-fit part (404). A snap-fit hole (309) is opened on the outer side of the outer frame (301).
3. The height detection device for air compressor processed parts according to claim 1, characterized in that, The vertical adjustment mechanism (6) includes a support column (601) integrally formed on the upper part of the sliding seat (505), and limit strips (602) integrally formed on both sides of the upper part of the support column (601), and a rack (603) integrally formed on the outer side of the limit strip (602).
4. The height detection device for air compressor processed parts according to claim 3, characterized in that, The laser measuring mechanism (7) includes a base (701), on which a slot (702) corresponding to the limiting strip (602) is provided. A square hole (703) is provided on the side of the slot (702). A square rod (704) is inserted into the square hole (703). A plug-in plate (705) is integrally formed on the outer end of the square rod (704). A toothed plate (706) is welded to the other end of the square rod (704). A compression spring (707) is sleeved on the outside of the square rod (704).
5. The height detection device for air compressor processed parts according to claim 4, characterized in that, The two ends of the compression spring (707) abut against the inner wall of the slot (702) and the toothed plate (706) respectively, and a vertical plate (708) is welded to the upper part of the base (701), and a laser measuring instrument body (709) is fixedly installed on one side of the vertical plate (708).
Citation Information
Patent Citations
Stainless steel product surface flatness detection device
CN218723946U
Equal-height detection device for machining parts of air compressor
CN221992609U