High efficiency grinding wheel diameter measuring device

Abstract

The utility model belongs to abrasive wheel measurement technical field especially relates to high -efficient abrasive wheel diameter measuring device, include: measuring box, the inner chamber fixed coupling of measuring box has zero detector, the side of measuring box is provided with the mounting groove, the inner chamber lower end fixed coupling of mounting groove has reference switch, reference switch and zero detector electric connection, the protective piece that sets up on measuring box has of protecting measuring box, mobile station, mobile station sets up in the side of measuring box, the top of mobile station swingly provided with moving frame, compared with prior art, the utility model has reduced equipment maintenance frequency and maintenance workload, has reduced maintenance cost, has reduced the influence to the continuity of measurement operation because of maintenance shutdown simultaneously, has promoted equipment overall operation efficiency, has avoided the measurement deviation because of reference point deviation, has promoted the stability and reliability of abrasive wheel diameter measurement result, has improved the measurement precision of abrasive wheel diameter.

Description

Technical Field

[0001] This utility model belongs to the field of grinding wheel measurement technology, and in particular relates to a high-efficiency grinding wheel diameter measuring device. Background Technology

[0002] During the use of a roll grinding machine, the grinding tool used is a grinding wheel. Wear of the grinding wheel will reduce the grinding effect. When the grinding effect cannot meet the process requirements, we need to dress the grinding wheel again. After the grinding wheel is dressed, it needs to be put back into use. At this time, the diameter of the grinding wheel will definitely be different from the original diameter. The usual method is to set a dressing reference point on the tailstock. The position of the dressing reference point is theoretically at the same height as the grinding wheel dresser. By measuring the current position of the dressing reference point, we can determine the coordinates when the grinding wheel dressing is completed and inversely deduce the diameter of the grinding wheel.

[0003] Chinese Patent Publication No. 201820555976.9 discloses a grinding wheel diameter measuring device, belonging to the field of mechanical technology. This grinding wheel diameter measuring device includes a frame, a base on the frame, a vertical through hole penetrating the base, and horizontally arranged upper and lower mounting holes communicating with the through hole. A mounting block is fixed at the connection between the upper mounting hole and the through hole. A spring is mounted on the mounting block and located within the upper mounting hole. A guide post is fixed within the lower mounting hole. The outer end of the guide post extends out of the lower mounting hole and has a signaling block that can move axially along the guide post. A sensor switch is located near the signaling block at the outer end of the guide post. A positioning block is mounted on the outer end face of the signaling block. A moving block is located between the signaling block and the base. One end of the moving block is fixed to the signaling block, and the other end extends into the upper mounting hole, where a positioning hole is formed. One end of the spring extends into and abuts against the positioning hole. This invention has the advantages of being simple and convenient, and capable of accurately measuring the diameter of the grinding wheel.

[0004] However, existing technologies have the following problems when used: When the grinding wheel dresser needs to be replaced or adjusted, it is necessary to strictly ensure that the grinding wheel dresser and the dresser reference surface are at the same height. This height positioning operation has high precision requirements and the operation process is extremely delicate. The lack of convenient positioning assistance means that the operation is difficult and time-consuming, which seriously affects the overall efficiency of the grinding wheel dressing operation. When replacing or adjusting the grinding wheel dresser, if repeated adjustments are required due to operational needs, the existing technology lacks a stable positioning constraint mechanism, which makes it more likely that random errors will occur during repeated operations. This makes it difficult to guarantee the stability of the grinding wheel dresser and the reference surface, thus affecting the quality and accuracy of subsequent grinding wheel dressing. The dresser has a large reference surface area. In actual working environments, this reference surface is more likely to be covered with debris such as grinding wheel dust and metal shavings, which reduces the adjustment accuracy of the grinding wheel dresser and the reliability of subsequent dressing operations. Utility Model Content

[0005] The purpose of this utility model is to address the aforementioned technical problems by providing an efficient grinding wheel diameter measuring device, comprising: A measuring box, wherein a zero-point detector is fixedly connected to the inner cavity of the measuring box, a mounting groove is provided on one side of the measuring box, a reference switch is fixedly connected to the lower end of the inner cavity of the mounting groove, the reference switch is electrically connected to the zero-point detector, and a protective component is provided on the measuring box to protect the measuring box; A movable stage is provided, which is located on one side of the measuring box. A movable frame is movably mounted on the top of the movable stage. A grinding wheel body is rotatably mounted inside the movable frame. A center point detector is fixedly connected to one side of the movable frame. The center point detector is located at the axis of the movable frame and is on the same horizontal plane as the zero point detector. The center point detector and the zero point detector are used in conjunction. A drive component for moving the movable stage is provided on the movable stage.

[0006] Furthermore, the protective component includes a limit protection switch, the mounting groove is fixedly connected to the upper end of the inner cavity of the mounting groove, and the limit protection switch is electrically connected to the zero-point detector.

[0007] Furthermore, the top of the mobile platform is provided with a movable groove, the inner cavity of the movable groove is slidably connected to a slider, the top of the slider is fixedly connected to a support plate, and the mobile frame is fixedly connected to the top of the support plate.

[0008] Furthermore, the driving component includes a hydraulic cylinder, which is fixedly connected to one end of the top of the moving platform, and the power output end of the hydraulic cylinder is fixedly connected to one side of the moving platform.

[0009] Furthermore, a mounting part is fixedly connected to the bottom of the measuring box, and the cross-sectional shape of the mounting part is an inverted trapezoid.

[0010] Furthermore, a protective cover is fixedly connected to the outer side of the grinding wheel body.

[0011] Furthermore, the inner cavity of the mounting part is provided with a mounting cavity.

[0012] Furthermore, both the reference switch and the limit protection switch are made of stainless steel.

[0013] Compared with existing technologies, the high-efficiency grinding wheel diameter measuring device of this invention has the following advantages: 1. The reference switch used in the device has a long theoretical service life. Under normal working conditions, it can be used stably for three to five years before it needs to be replaced. Moreover, once the reference point is determined, no additional maintenance operations are required, which reduces the frequency and workload of equipment maintenance, lowers maintenance costs, and reduces the impact of maintenance downtime on the continuity of measurement operations, thereby improving the overall operating efficiency of the equipment. 2. The optimized design ensures the stability of the reference point position, which can eliminate random errors in the measurement process, avoid measurement deviations caused by reference point offset, and improve the stability and reliability of grinding wheel diameter measurement results. 3. Both the reference switch and the limit switch are made of stainless steel and have a high sealing rating, which can prevent impurities such as grinding wheel dust from adhering to the switch surface or entering the switch interior, completely eliminating the interference of impurities on the switch signal transmission, further ensuring the accuracy of measurement data and improving the measurement accuracy of grinding wheel diameter. 4. This measurement method eliminates the need for internal measuring components in traditional measurement structures, as well as intermediate signal or motion conversion devices. This simplifies the overall structure of the device, reduces the number of parts, and lowers the manufacturing cost and the risk of failure during use. Attached Figure Description

[0014] Figure 1 This is the front view of the measuring box of this utility model; Figure 2 This is a cross-sectional view of the measuring box of this utility model; Figure 3 This is the main view of the mobile station of this utility model.

[0015] The markings in the diagram are as follows: 100. Measuring box; 110. Zero-point detector; 120. Mounting slot; 130. Reference switch; 140. Limit protection switch; 150. Mounting part; 151. Mounting cavity; 200. Moving table; 210. Movable slot; 211. Slider; 220. Support plate; 230. Moving frame; 240. Center point detector; 250. Grinding wheel body; 251. Protective cover; 260. Hydraulic cylinder. Detailed Implementation

[0016] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0017] It should be noted that all directional and positional terms used in this utility model, such as "up," "down," "left," "right," "front," "back," "vertical," "horizontal," "inner," "outer," "top," "lower," "lateral," "longitudinal," and "center," are only used to explain the relative positional relationships and connection arrangements between components in a specific state (as shown in the accompanying drawings). They are merely for the convenience of describing this utility model and do not require that this utility model be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on this utility model. Furthermore, descriptions involving "first," "second," etc., in this utility model are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated.

[0018] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0019] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0020] like Figures 1-3 As shown, the high-efficiency grinding wheel diameter measuring device includes: The measuring box 100 has a zero-point detector 110 fixedly connected to its inner cavity. The zero-point detector 110 is specifically a laser displacement sensor (model: KEYENCE IL-1000), with a measuring range of 0-500mm and an accuracy of ±0.01mm. It is locked to the steel mounting plate inside the measuring box 100 using four M8 hexagonal bolts. Signal transmission uses RS485 wired communication, with the signal line leading out through a 12mm diameter hole (with a built-in IP67 waterproof connector) on the side wall of the measuring box 100. A mounting groove 120 is provided on one side of the measuring box 100, and a reference switch 130 is fixedly connected to the lower end of the inner cavity of the mounting groove 120. The reference switch 130 is an inductive proximity switch (model: SICK). The IM18-08NNS-ZW1 sensor is fixed to the built-in mounting base (integrated with the measuring box 100) in the mounting groove 120 by two M6 countersunk bolts. The sensing surface is flush with the opening of the mounting groove 120, the sensing distance is 4mm, and it outputs an NPN low-level signal after triggering. The reference switch 130 is electrically connected to the zero-point detector 110 and can transmit signals in real time. The measuring box 100 is equipped with protective parts to protect the measuring box 100. A movable stage 200 is disposed on one side of the measuring box 100. A movable frame 230 is movably disposed on the top of the movable stage 200. A grinding wheel body 250 is rotatably disposed in the inner cavity of the movable frame 230. A center point detector 240 is fixedly connected to one side of the movable frame 230. The center point detector 240 is a laser displacement sensor of the same model as the zero point detector 110. It is fixed at the axis of the movable frame 230 by an elastic sleeve (interference fit with the axis hole of the movable frame 230) and is at the same horizontal plane as the zero point detector 110. The center point detector 240 is used in conjunction with the zero point detector 110. A driving component for driving the movable frame 230 to move horizontally is provided on the movable stage 200.

[0021] As a preferred example of this utility model, the zero-point detector 110 fixed inside the measuring box 100 and the center-point detector 240 fixed on one side of the moving frame 230 cooperate. A reference switch 130 is fixed in the mounting groove 120 on one side of the measuring box 100, and the reference switch 130 is electrically connected to the zero-point detector 110, enabling real-time signal transmission. The driving component on the moving stage 200 can drive the moving frame 230 to move horizontally. The grinding wheel body 250 on the moving frame 230 approaches the reference switch 130. When the reference switch 130 receives a signal, the grinding wheel body 250 stops moving, and the zero-point detector 240 is engaged with the center-point detector 240. The detection data from the point detector 110 and the center point detector 240 can be used to calculate the grinding wheel diameter. Specifically, since the distance between the zero point detector 110 and the reference switch 130 is fixed (fixed value A=50mm, preset by laser calibration), the distance between the zero point detector 110 and the center point detector 240 (real-time detection value B1) minus the distance A between the zero point detector 110 and the reference switch 130 gives the grinding wheel radius. Multiplying this by 2 gives the grinding wheel diameter. The calculation process is automatically executed by a PLC controller (model: S7-200 SMART) electrically connected to the detector, and the result is synchronously displayed on the touch screen.

[0022] In the example of this application, the protective component includes a limit protection switch 140, which is a mechanical limit switch (model: OMRON D4C-1520) with a sealing rating of IP67. It is made of stainless steel and is fixed to the built-in mounting base at the upper end of the inner cavity of the mounting groove 120 by two M6 countersunk bolts. The limit protection switch 140 is electrically connected to the zero-point detector 110.

[0023] As a preferred example of this utility model, the limit protection switch 140 is fixed to the bottom of the inner cavity of the mounting groove 120, and the limit protection switch 140 is electrically connected to the zero point detector 110. During normal measurement, the reference switch 130 receives the signal from the grinding wheel body 250 and links the zero point detector 110 to control the grinding wheel to stop. When the reference switch 130 malfunctions and cannot trigger the stop signal in time, causing the grinding wheel body 250 to continue moving towards the mounting groove 120, the limit protection switch 140 will contact the grinding wheel body 250 and trigger the protection signal. The signal transmitted by the zero point detector 110 controls the drive to stop running.

[0024] In the example of this application, the top of the mobile platform 200 is provided with an active groove 210, which is a rectangular guide rail groove. A slider 211 is slidably connected to the inner cavity of the active groove 210. A support plate 220 is fixedly connected to the top of the slider 211. The mobile frame 230 is fixedly connected to the top of the support plate 220.

[0025] As a preferred example of this utility model, the movable groove 210 on the top of the moving stage 200 provides a sliding track for the slider 211. The slider 211 is slidably connected to the inner cavity of the movable groove 210, and the support plate 220 fixed on the top of the slider 211 is directly fixedly connected to the moving frame 230. When the driving component drives the moving frame 230 to move horizontally, the slider 211 drives the moving frame 230 to move along the sliding trajectory of the movable groove 210, and keeps the center point detector 240 on the moving frame 230 and the zero point detector 110 in the measuring box 100 at the same horizontal plane.

[0026] In the example of this application, the driving component includes a hydraulic cylinder 260, which is fixedly connected to one end of the top of the moving platform 200. The power output end (piston rod) of the hydraulic cylinder 260 is fixedly connected to the moving frame 230. The hydraulic cylinder 260 is equipped with an electromagnetic reversing valve and is electrically connected to the reference switch 130 and the limit protection switch 140 through a controller.

[0027] As a preferred example of this utility model, the hydraulic cylinder 260 serves as a driving component, fixed to one end of the top of the movable platform 200, and the power output end of the hydraulic cylinder 260 is fixedly connected to the movable frame 230. The movable frame 230 is moved by the hydraulic cylinder 260, and the hydraulic cylinder 260 is electrically connected to the reference switch 130 through the controller. When the reference switch 130 is triggered, the controller controls the solenoid directional valve to de-energize, stopping the extension and retraction of the hydraulic cylinder 260. The hydraulic cylinder 260 is prior art and will not be described in detail here.

[0028] In the example of this application, the bottom of the measuring box 100 is fixedly connected to the mounting part 150, which is made of Q235 steel plate and has an inverted trapezoidal cross-section for fixing to the ground or equipment platform.

[0029] As a preferred example of this utility model, the mounting part 150 fixed at the bottom of the measuring box 100 adopts an inverted trapezoidal cross-section design, which can improve the installation stability of the measuring box 100, disperse the weight of the measuring box 100 itself and the impact force generated during the measurement process, and prevent the measuring box 100 from tilting or shifting due to concentrated force.

[0030] In the example of this application, a protective cover 251 is fixedly connected to the outside of the grinding wheel body 250, and the protective cover 251 is made of transparent PC board.

[0031] As a preferred example of this utility model, a protective cover 251 is fixedly connected to the outside of the grinding wheel body 250. During the rotation or movement of the grinding wheel body 250, debris, dust and other impurities may be generated. The protective cover 251 can block these impurities from splashing, prevent the operator from being scratched by the splashing objects, and prevent the impurities from spreading and polluting the working environment.

[0032] In the example of this application, the inner cavity of the mounting part 150 is provided with a mounting cavity 151, the inner wall of the cavity is lined with 5mm thick flame-retardant sponge, and a waterproof junction box and a 24V DC power module are built in. The top of the mounting cavity 151 is provided with a removable cover plate, and a waterproof sealing ring is provided between the cover plate and the mounting part 150.

[0033] As a preferred example of this utility model, an installation cavity 151 is provided in the inner cavity of the installation section 150. The installation cavity 151 is used to install electrical components (waterproof junction box, power module), providing a sealed, dustproof and shockproof installation space for the electrical components, while facilitating later inspection and maintenance.

[0034] In the example of this application, both the reference switch 130 and the limit protection switch 140 are made of 304 stainless steel.

[0035] As a preferred example of this utility model, both the reference switch 130 and the limit protection switch 140 are made of stainless steel, which can effectively resist the adhesion and corrosion of debris such as grinding wheel dust and metal shavings, prevent debris from clogging the switch sensing end or entering the switch, eliminate the interference of debris on the switch signal transmission, and improve the measurement accuracy.

[0036] In practical use, the measuring box 100 is fixedly installed via a mounting part 150 with an inverted trapezoidal bottom cross-section. A zero-point detector 110 is fixedly connected to the inner cavity of the measuring box 100, and a mounting groove 120 is provided on one side of the measuring box 100. A reference switch 130 is fixedly connected to the upper end of the inner cavity of the mounting groove 120, and a limit protection switch 140 is fixedly connected to the bottom. Both the reference switch 130 and the limit protection switch 140 are electrically connected to the zero-point detector 110. The cables of all electrical components are centrally arranged through cable trays, and key connectors use waterproof aviation plugs. A movable stage 200 is provided on one side of the measuring box 100, and a movable groove 21 is provided on the top of the movable stage 200. 0. A slider 211 is slidably connected to the inner cavity of the movable groove 210. A support plate 220 is fixedly connected to the top of the slider 211. A movable frame 230 is fixedly connected to the top of the support plate 220. A grinding wheel body 250 is rotatably mounted inside the movable frame 230. A center point detector 240 is fixedly connected to one side of the movable frame 230. The center point detector 240 and the zero point detector 110 are on the same horizontal plane. At the same time, a hydraulic cylinder 260 is fixedly connected to one end of the top of the movable table 200. The power output end of the hydraulic cylinder 260 is fixedly connected to the movable frame 230. During operation, first adjust the grinding wheel body 250 so that the grinding wheel surface is facing the reference switch 130, and then... The controller starts the hydraulic cylinder 260, which provides driving force to drive the slider 211 to slide along the movable groove 210. The slider 211, through the support plate 220, drives the moving frame 230 and the grinding wheel body 250 to move towards the measuring box 100, bringing the grinding wheel body 250 closer to the reference switch 130. When the grinding wheel body 250 contacts and triggers the reference switch 130, the reference switch 130 transmits a low-level signal to the zero-point detector 110. The zero-point detector 110 simultaneously sends a command to the controller, which controls the solenoid directional valve to de-energize and stop the hydraulic cylinder 260. At this time, the center point detector 240 detects and transmits data in real time. The distance B1 from the zero-point detector 110 is transmitted to the PLC. Since the distance from the zero-point detector 110 to the reference switch 130 is a fixed value A (50mm), the PLC automatically calculates the diameter of the grinding wheel body 250 according to the formula D=2(B1-A) and displays it on the touch screen. If the reference switch 130 malfunctions, the grinding wheel body 250 will continue to move towards the mounting groove 120 until it contacts and triggers the limit protection switch 140. The limit protection switch 140 transmits a signal to the zero-point detector 110, which controls the hydraulic cylinder 260 to stop running, thus preventing the grinding wheel body 250 from moving excessively.

[0037] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A high efficiency grinding wheel diameter measuring device, characterized by, include: A measuring box (100) is provided, and a zero-point detector (110) is fixedly connected to the inner cavity of the measuring box (100). A mounting groove (120) is provided on one side of the measuring box (100). A reference switch (130) is fixedly connected to the lower end of the inner cavity of the mounting groove (120). The reference switch (130) is electrically connected to the zero-point detector (110). A protective component for protecting the measuring box (100) is provided on the measuring box (100). A movable stage (200) is set on one side of the measuring box (100). A movable frame (230) is movably set on the top of the movable stage (200). A grinding wheel body (250) is rotatably set in the inner cavity of the movable frame (230). A center point detector (240) is fixedly connected to one side of the movable frame (230). The center point detector (240) is located at the axis of the movable frame (230) and is on the same horizontal plane as the zero point detector (110). The center point detector (240) is used in conjunction with the zero point detector (110). A driving component for moving the movable stage (200) is provided on the movable stage (200).

2. The high efficiency grinding wheel diameter measuring device of claim 1, wherein, The protective component includes a limit protection switch (140), the mounting groove (120) is fixedly connected to the upper end of the inner cavity of the mounting groove (120), and the limit protection switch (140) is electrically connected to the zero point detector (110).

3. The high efficiency grinding wheel diameter measuring device of claim 1, wherein, The top of the mobile platform (200) is provided with a movable groove (210), and a slider (211) is slidably connected to the inner cavity of the movable groove (210). A support plate (220) is fixedly connected to the top of the slider (211), and the mobile frame (230) is fixedly connected to the top of the support plate (220).

4. The high efficiency grinding wheel diameter measuring device of claim 1, wherein, The driving component includes a hydraulic cylinder (260), which is fixedly connected to one end of the top of the moving platform (200), and the power output end of the hydraulic cylinder (260) is fixedly connected to one side of the moving platform (200).

5. The high efficiency grinding wheel diameter measuring device of claim 1, wherein, The bottom of the measuring box (100) is fixedly connected to a mounting part (150), and the cross-sectional shape of the mounting part (150) is an inverted trapezoid.

6. The high efficiency grinding wheel diameter measuring device of claim 1, wherein, A protective cover (251) is fixedly connected to the outside of the grinding wheel body (250).

7. The high efficiency grinding wheel diameter measuring device of claim 5, wherein, The mounting part (150) has a mounting cavity (151) inside.

8. The high efficiency grinding wheel diameter measuring device of claim 2, wherein, Both the reference switch (130) and the limit protection switch (140) are made of stainless steel.

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