A high-speed on-line measuring device and measuring method suitable for centerless grinding machine

Abstract

The application provides a high-speed on-line measuring device and a measuring method suitable for a centerless grinding machine, relates to the technical field of grinding processing measurement, and comprises a cleaning connection assembly, a groove guide assembly, a measuring assembly, a driving assembly and a sorting assembly. Through the cleaning connection assembly, the groove guide assembly, the measuring assembly, the driving assembly and the sorting assembly, the application can realize efficient and automatic measurement of the size of a workpiece to be measured, has high measurement efficiency and small accidental error compared with traditional manual measurement, and can improve production efficiency, reduce labor cost and improve enterprise competitiveness when applied to repeated measurement of a large number of small-size workpieces.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of grinding processing measurement, in particular to a high-speed online measurement equipment suitable for a centerless grinding machine and a measurement method. BACKGROUND

[0002] A centerless grinding machine is a high-precision grinding equipment specially used for processing cylindrical workpieces. Unlike traditional grinding machines, it does not require a center hole or a clamp to fix the workpiece. Instead, it achieves grinding through the relative movement between the outer circle of the workpiece and the grinding wheel. During the grinding process of small cylindrical parts, high-efficiency and batch grinding can be achieved. With the continuous improvement of industrial automation, automatic feeding and unloading, automatic measurement, and automatic screening have become basic requirements for automated processing. Under the premise of ensuring processing precision and efficiency, it is imperative to improve efficiency and upgrade intelligence through automation.

[0003] After grinding, the workpiece needs to be measured. For large quantities of small-sized workpieces, it is difficult to meet the actual processing requirements by relying on traditional manual measurement. Moreover, manual measurement is unstable in quality and has a large accidental error. Therefore, the present application provides a high-speed online measurement equipment suitable for a centerless grinding machine and a measurement method. SUMMARY

[0004] To overcome the shortcomings of the prior art, the present application provides a high-speed online measurement equipment suitable for a centerless grinding machine and a measurement method, which solves the problem of measuring large quantities of small-sized workpieces by relying on traditional manual measurement, which is difficult to meet the actual processing requirements, and the problem of unstable quality and large accidental error in manual measurement.

[0005] To achieve the above purpose, the present application is implemented by the following technical solutions:

[0006] A high-speed online measurement equipment suitable for a centerless grinding machine, comprising:

[0007] A cleaning connection assembly is used to guide the workpiece to be measured from the discharge port of the centerless grinding machine to one end of the groove guide assembly, and the cleaning connection assembly blows and cleans the workpiece to be measured;

[0008] A groove guide assembly is arranged at one end of the cleaning connection assembly, and the axial direction of the workpiece to be measured is along the length direction of the long slot of the groove guide assembly;

[0009] A measurement assembly is fixedly installed on the groove guide assembly, and the measurement assembly measures the workpiece to be measured along the direction perpendicular to the length direction of the long slot;

[0010] A driving assembly is installed above the groove guiding assembly and is used to drive the workpiece to move along the length direction of the long slot of the groove guiding assembly.

[0011] A sorting assembly is used to sort and deliver the workpiece according to the measurement result of the measuring assembly.

[0012] Preferably, the cleaning and transferring assembly comprises:

[0013] An inclined slot frame is in an inclined state and has a high end and a low end, and the high end of the inclined slot frame is fixedly installed with a support frame;

[0014] An impurity groove is located at one side of the low end of the inclined slot frame and is in communication with the inside of the inclined slot frame;

[0015] A spring pipe is fixedly connected with a plurality of support crosspieces in the length direction of the inside of the inclined slot frame, the spring pipe is located at the upper side of the support crosspieces, the first end of the spring pipe is fixedly provided with a connecting pipe, the second end of the spring pipe is fixedly connected with a transfer housing, the transfer housing is fixedly arranged at the inside of the high end of the inclined slot frame, the top of the transfer housing is provided with a square feeding channel, and the side surface of the transfer housing is provided with an air inlet mounting port;

[0016] An air inlet connector is threadedly installed with the air inlet mounting port, and the end or the inside of the air inlet mounting port is fixedly provided with a multi-hole flow distribution disc;

[0017] A spiral air pipe is fixedly connected with the inclined slot frame and is arranged in a spiral manner at the outside of the spring pipe, the spiral air pipe is provided with a gas blowing hole at the side surface thereof facing the spring pipe, the bottom end of the spiral air pipe is blocked, and the top end of the spiral air pipe is fixedly provided with an adapter pipe which is fixedly connected with the side surface of the air inlet connector.

[0018] Preferably, the groove guiding assembly comprises:

[0019] A bottom plate;

[0020] A slot frame is fixedly installed at the top of the bottom plate, and the top of the slot frame is provided with a long slot;

[0021] A wear-resistant strip is arranged at the two sides of the long slot, the wear-resistant strip is provided with two groups, and the wear-resistant strip is fixedly installed at the inside of the stepped port;

[0022] A guide is fixedly installed on the bottom plate, and the guide has a circular hole which corresponds to the end of the long slot.

[0023] Preferably, the measuring assembly comprises a parallel light supplement, a camera module and a data processing module, the parallel light supplement and the camera module are fixedly installed on the bottom plate, and the parallel light supplement and the camera module are located on both sides of the groove frame.

[0024] Preferably, the driving assembly comprises:

[0025] A frame body is fixedly installed on the bottom plate, and the frame body is located outside the groove frame;

[0026] A first roller, a second roller and a driving roller in a triangular distribution are rotatably installed on the inner side of the frame body and above the groove frame, the first roller and the second roller have the same height, and the driving roller is located above the first roller and the second roller, a tension roller is installed on the inner side of the frame body and between the first roller and the second roller, and a transmission belt is installed on the first roller, the second roller and the driving roller, and the tension roller is located below the transmission belt.

[0027] A driving member is fixedly installed on the side surface of the frame body, and the output end of the driving member is in transmission connection with the driving roller.

[0028] Preferably, the transmission belt comprises a first rubber layer, a sponge layer and a second rubber layer from inside to outside.

[0029] Preferably, the sorting assembly comprises:

[0030] A slotting assembly is fixedly arranged above the groove frame and located behind the measuring assembly, and a one-way feeding port is arranged at the bottom of the slotting assembly.

[0031] A material distributing air cylinder assembly is fixedly installed at the bottom of the groove frame, and the action end of the material distributing air cylinder assembly corresponds to the one-way feeding port.

[0032] A conveying belt assembly corresponds to each discharge port of the slotting assembly.

[0033] Preferably, the slotting assembly comprises:

[0034] The bottom of the groove body is upwardly raised;

[0035] A partition is fixedly installed on the inner side of the groove body, and the partition divides the inner side of the groove body into a plurality of partitioned areas.

[0036] A discharge port is arranged on the side surface of the groove body and corresponds to each partitioned area, and a guide plate is fixedly arranged at the bottom of the discharge port.

[0037] The bottom of the groove body is connected with two groups of symmetrically arranged elastic plate groups, the elastic plate group comprises a rubber connecting block, a horizontal plate and an inclined plate, the rubber connecting block and the inclined plate are located on both sides of the horizontal plate, and the rubber connecting block is connected with the groove body.

[0038] Preferably, the material distribution cylinder assembly comprises:

[0039] A cylinder body is fixedly installed at the bottom of the frame body;

[0040] A bracket comprises a connecting seat and a strip-shaped supporting piece, the connecting seat is fixedly installed at the telescopic end of the top of the cylinder body, the top of the strip-shaped supporting piece is arc-shaped, and a protruding part is fixedly arranged at the center of the top of the strip-shaped supporting piece.

[0041] Another object of the present application is to provide a high-speed online measurement method suitable for a centerless grinding machine, which uses the high-speed online measurement device suitable for the centerless grinding machine, and specifically comprises the following steps:

[0042] S1, the workpiece to be measured at the discharge port of the centerless grinding machine enters the cleaning connection assembly, the cleaning connection assembly blows and cleans the workpiece to be measured, and guides the workpiece to be measured to the groove guide assembly;

[0043] S2, the workpiece to be measured is driven by the driving assembly to slide along the length direction of the long slot of the groove guide assembly, and when the workpiece to be measured passes through the measurement assembly, the measurement assembly measures the workpiece to be measured along the direction perpendicular to the length direction of the long slot;

[0044] Wherein, the measurement assembly directly obtains the length m of the workpiece above the groove frame, and calculates the diameter D of the workpiece to be measured according to formula ①.

[0045] ①

[0046] In formula ①, n represents the spacing at the position where the groove guide assembly supports the workpiece to be measured.

[0047] The present application provides a high-speed online measurement device and measurement method suitable for a centerless grinding machine. The present application has the following beneficial effects:

[0048] The present application can realize efficient and automatic measurement of the size of the workpiece to be measured through the cleaning connection assembly, the groove guide assembly, the measurement assembly, the driving assembly and the sorting assembly. Compared with the traditional manual measurement, the present application has high measurement efficiency, small accidental error, and can improve the production efficiency, reduce the labor cost and improve the enterprise competitiveness when applied to the repeated measurement of a large number of small-size workpieces.

[0049] The application can simplify the algorithm complexity of the measurement assembly and improve the measurement accuracy by designing the measurement assembly to measure the workpiece along the direction perpendicular to the length direction of the long slot.

[0050] The application can clean the workpiece by designing the cleaning connection assembly, which includes a spring pipe and a spiral air pipe, and the spring pipe is arranged to be inclined to realize the conveying of the workpiece, and the spiral air pipe blows high-pressure gas to the spring pipe from the outside of the spring pipe to clean the workpiece in the spring pipe, so that the surface of the workpiece is clean and liquid-free, and the subsequent measurement of the measurement assembly is facilitated. BRIEF DESCRIPTION OF DRAWINGS

[0051] Figure 1 A perspective view of a high-speed online measurement equipment suitable for a centerless grinding machine;

[0052] Figure 2 A front view of a high-speed online measurement equipment suitable for a centerless grinding machine;

[0053] Figure 3 A top view of a high-speed online measurement equipment suitable for a centerless grinding machine;

[0054] Figure 4 A perspective view of a high-speed online measurement equipment suitable for a centerless grinding machine; Figure 3 A sectional view of the section line A-A;

[0055] Figure 5 A perspective view of a high-speed online measurement equipment suitable for a centerless grinding machine; Figure 4 An enlarged view of the part B;

[0056] Figure 6 A perspective view of a high-speed online measurement equipment suitable for a centerless grinding machine;

[0057] Figure 7 A perspective view of a high-speed online measurement equipment suitable for a centerless grinding machine;

[0058] Figure 8 A perspective view of a high-speed online measurement equipment suitable for a centerless grinding machine;

[0059] Figure 9 A sectional view of the section line B-B; Figure 8 A sectional view of the section line B-B;

[0060] Figure 10 A perspective view of a high-speed online measurement equipment suitable for a centerless grinding machine;

[0061] Figure 11A perspective view of a cleaning connection assembly of a high-speed online measurement device suitable for a centerless grinding machine according to the present application;

[0062] Figure 12 A perspective view of a distribution air cylinder assembly of a high-speed online measurement device suitable for a centerless grinding machine according to the present application;

[0063] Figure 13 A schematic diagram of a high-speed online measurement method suitable for a centerless grinding machine according to the present application.

[0064] Wherein, 1, cleaning connection assembly; 101, chute frame; 102, impurity tank; 103, spiral air pipe; 103a, adapter pipe; 104, support frame; 105, support crosspiece; 106, spring pipe; 106a, connecting pipe; 107, air inlet connector; 108, transfer housing; 108a, square feed channel; 108b, air inlet mounting port; 109, multi-hole distribution disc; 2, groove guide assembly; 201, bottom plate; 202, slot frame; 202a, long slot; 203, wear-resistant strip; 204, guide; 204a, round hole; 3, measurement assembly; 301, parallel light light supplementing piece; 302, camera module; 4, drive assembly; 401, frame body; 402, first roller; 403, second roller; 404, tensioning roller; 405, driving roller; 406, transmission belt; 40601, sponge layer; 40602, first rubber layer; 40603, second rubber layer; 407, drive piece; 5, distribution groove assembly; 501, groove body; 502, partition piece; 503, discharge port; 503a, guide plate; 504, elastic plate set; 50401, cross plate; 50402, inclined plate; 50403, rubber connecting block; 6, conveyor belt assembly; 7, distribution air cylinder assembly; 701, air cylinder main body; 702, bracket; 70201, connecting seat; 70202, strip-shaped supporting piece; 70202a, protruding portion; m, length of workpiece above slot frame; n, distance of groove guide assembly supporting workpiece to be measured; D, diameter of workpiece to be measured; a, workpiece to be measured. DETAILED DESCRIPTION

[0065] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application. EMBODIMENT

[0066] As Figures 1-13As shown, the embodiment of the present application provides a high-speed online measurement device suitable for centerless grinding machine, which comprises a cleaning connection assembly 1, a groove guide assembly 2, a measurement assembly 3, a driving assembly 4 and a sorting assembly.

[0067] Specifically, the cleaning connection assembly 1 is used to guide the workpiece a to be measured from the discharge port of the centerless grinding machine to one end of the groove guide assembly 2, that is, one end of the cleaning connection assembly 1 corresponds to the discharge port of the centerless grinding machine, and after receiving the workpiece a to be measured, it is conveyed downward, and the other end of the cleaning connection assembly 1 corresponds to the groove guide assembly 2, so that the workpiece a to be measured is conveyed to the groove guide assembly 2. The cleaning connection assembly 1 plays a role of guiding and connecting, and the cleaning connection assembly 1 blows and cleans the workpiece a to be measured. Specifically, during the conveying process of the workpiece a to be measured in the cleaning connection assembly 1, the blowing structure (spiral air pipe 103) in the cleaning connection assembly 1 blows and cleans the workpiece a to be measured, so that the grinding fluid and grinding dust in the workpiece a to be measured are blown off, and the surface of the workpiece a to be measured is relatively clean, so as to facilitate subsequent measurement. Overall, the cleaning connection assembly 1 plays a role of connecting, transferring, and cleaning the surface of the workpiece a to be measured. The groove guide assembly 2 is arranged at one end of the cleaning connection assembly 1, and the axial direction of the workpiece a to be measured is along the length direction of the long slot 202a of the groove guide assembly 2. The long slot 202a is used to guide the workpiece a to be measured, that is, the axial direction of the workpiece a to be measured is along the length direction of the long slot 202a of the groove guide assembly 2, so that the workpiece a to be measured can slide along the length direction of the long slot 202a of the groove guide assembly 2. The driving assembly 4 is installed above the groove guide assembly 2, and the driving assembly 4 is used to drive the workpiece a to be measured to move along the length direction of the long slot 202a of the groove guide assembly 2. The driving assembly 4 provides power to drive the workpiece a to be measured to slide along the length direction of the long slot 202a of the groove guide assembly 2. The measurement assembly 3 is fixedly installed on the groove guide assembly 2, and the measurement assembly 3 measures the workpiece a to be measured along the direction perpendicular to the length direction of the long slot 202a. The measurement assembly 3 selects the commonly used image measurement device. The sorting assembly classifies and conveys the workpiece according to the measurement result of the measurement assembly 3. The sorting assembly is in communication connection with the measurement assembly 3. For example, the measurement assembly 3 classifies the workpiece into three categories of “qualified product”, “oversize” and “undersize” according to the measurement result, and the sorting assembly sends the workpiece into different conveying lines / collection frames according to the classification structure.

[0068] In this embodiment, through the design of the cleaning connection assembly 1, the groove guide assembly 2, the measurement assembly 3, the driving assembly 4 and the sorting assembly, efficient and automatic measurement of the size of the workpiece a to be measured can be realized. Compared with the traditional manual measurement, the measurement efficiency is high, the accidental error is small, and the application in repeated measurement of a large number of small-size workpieces can improve the production efficiency, reduce the labor cost and improve the enterprise competitiveness.

[0069] The core of the present scheme is that the measuring assembly 3 measures the workpiece a along the direction perpendicular to the length of the long notch 202a; when the measuring assembly 3 measures the size of the workpiece a, the actual measurement is the length m of the workpiece above the groove frame. In this measurement mode, the camera module 302 of the measuring assembly 3 directly obtains a picture with one side (the bottom side of the image) always horizontal. After scaling the image, the image is placed in a plane rectangular coordinate system, and the Y-axis coordinate value of the top edge profile of the image is read to obtain the accurate length m of the workpiece above the groove frame. For example, 10-20 points on the top edge profile of the image are selected at equal intervals to obtain the Y-axis coordinate values, the maximum and minimum values are removed, the average value is calculated to obtain the length m of the workpiece above the groove frame, and then the diameter D of the workpiece to be measured is calculated by the formula , wherein n represents the spacing (a fixed value) of the groove guide assembly supporting the workpiece to be measured. Compared with the traditional algorithm for reading the diameter of the workpiece a in the plane picture, the algorithm is simpler and the measurement result is more accurate.

[0070] In an embodiment, the cleaning connection assembly 1 comprises an inclined groove frame 101, an impurity groove 102, a spring pipe 106, an air inlet joint 107, and a spiral air pipe 103.

[0071] The chute frame 101 is in an inclined state and has a high end and a low end. The high end of the chute frame 101 is fixedly provided with a support frame 104, which supports the high end of the chute frame 101. The impurity tank 102 is located at one side of the low end of the chute frame 101 and communicates with the inside of the chute frame 101. The impurities (grinding fluid, dust particles, etc.) blown off from the workpiece a fall into the chute frame 101 and slide along the inclined direction of the chute frame 101 to the impurity tank 102 for storage. The inside of the chute frame 101 is fixedly connected with a plurality of support cross pieces 105 in the length direction, which are used for supporting spring tubes 106. The spring tubes 106 are located at the inside of the chute frame 101 and above the support cross pieces 105. The first end of the spring tube 106 is fixedly provided with a connecting pipe 106a which is a sleeve pipe and is convenient for fixedly installing with other components. The second end of the spring tube 106 is fixedly connected with a transfer shell 108 which is fixedly arranged at the inside of the high end of the chute frame 101. The top of the transfer shell 108 is provided with a square feeding channel 108a. The workpiece a falls from the square feeding channel 108a into the inside of the transfer shell 108. The side of the transfer shell 108 is provided with an air inlet mounting port 108b. An air inlet connector 107 is threadedly mounted with the air inlet mounting port 108b. The air inlet connector 107 is connected with a gas source in the factory. The end or the inside of the air inlet mounting port 108b is fixedly provided with a multi-hole flow dividing disc 109 which is used for dividing the gas and enabling the gas to be sprayed out. A spiral air pipe 103 is fixedly connected with the chute frame 101 and is spirally arranged at the outside of the spring tube 106 and has a blowing hole opened at the side of the spring tube 106. The bottom end of the spiral air pipe 103 is blocked. The top end of the spiral air pipe 103 is fixedly provided with an adapter pipe 103a which is fixedly connected with the side of the air inlet connector 107.

[0072] In use, the workpiece discharged from the discharge port of the centerless grinding machine falls into the inside of the transfer shell 108 from the square feeding channel 108a after being simply drained by the chute frame. The airflow sprayed from the multi-hole flow dividing disc 109 pushes the workpiece a to continuously move forward and slide in the spring tube 106 by gravity. The blowing hole of the spiral air pipe 103 sprays cleaning gas to make the surface of the workpiece a clean.

[0073] In an embodiment, the groove guide assembly 2 comprises a bottom plate 201, a chute frame 202, a wear-resistant strip 203, and a guide 204.

[0074] The groove frame 202 is fixedly installed on the top of the bottom plate 201, and a long slot 202a is formed on the top of the groove frame 202, and a step opening is formed on both sides of the long slot 202a, two groups of wear-resistant strips 203 are arranged, the wear-resistant strips 203 are fixedly installed on the inner side of the step opening, the distance between the two groups of wear-resistant strips 203 is the distance n of the concave groove guide assembly supporting the workpiece to be measured, the wear-resistant strips 203 are made of smooth wear-resistant steel or graphite material, the guide 204 is fixedly installed on the bottom plate 201, and the guide 204 has a round hole 204a corresponding to the end of the long slot 202a.

[0075] In an embodiment, the measurement assembly 3 comprises a parallel light supplement 301, a camera module 302 and a data processing module, the data processing module is an industrial computer with an algorithm, the parallel light supplement 301 and the camera module 302 are fixedly installed on the bottom plate 201, and the parallel light supplement 301 and the camera module 302 are located on both sides of the groove frame 202; the parallel light supplement 301 is used for light supplement, and the camera module 302 is used for acquiring picture information, and a general incoming material sensing sensor (optical fiber sensor) is also arranged on the camera module 302, when the workpiece to be measured reaches the predetermined position, the camera module 302 takes a picture, and the picture is transmitted to the data processing module, the parallel light supplement 301 can be turned on for a long time in the working stage or turned on synchronously with the camera module 302, and each part in the measurement assembly 3 is of existing design, which will not be described here.

[0076] In an embodiment, the driving assembly 4 comprises a frame body 401, a first roller 402, a second roller 403, a driving roller 405, a transmission belt 406 and a driving part 407.

[0077] The frame body 401 is fixedly installed on the bottom plate 201, and the frame body 401 is located on the outer side of the groove frame 202, a first roller 402, a second roller 403 and a driving roller 405 in triangular distribution are rotatably installed on the inner side of the frame body 401 and above the groove frame 202, the heights of the first roller 402 and the second roller 403 are consistent, the driving roller 405 is located above the first roller 402 and the second roller 403, a tensioning roller 404 is installed on the inner side of the frame body 401 and between the first roller 402 and the second roller 403, the transmission belt 406 is installed on the first roller 402, the second roller 403 and the driving roller 405, the tensioning roller 404 is located below the transmission belt 406, the driving part 407 is fixedly installed on the side surface of the frame body 401, the output end of the driving part 407 is in transmission connection with the driving roller 405, and the driving part 407 is a speed reducer.

[0078] When working, the driving member 407 drives the driving roller 405 to rotate, and then drives the transmission belt 406 to rotate along the first roller 402, the second roller 403 and the driving roller 405. When the workpiece a enters below the first roller 402, the bottom of the rotating transmission belt 406 contacts the workpiece a and drives the workpiece a to move forward. The workpiece a continues to slide along the direction of the long slot 202a, and when the workpiece a reaches the position of the second roller 403, the bottom of the rotating transmission belt 406 contacts the workpiece a again and applies a pushing force to the workpiece a.

[0079] In an embodiment, the transmission belt 406 comprises, from inside to outside, a first rubber layer 40602, a sponge layer 40601 and a second rubber layer 40603. The sponge layer 40601 can thicken the transmission belt 406, so that the workpiece a can contact and press the transmission belt 406, and the workpiece a can pass over the bottom of the transmission belt 406.

[0080] In an embodiment, the sorting assembly comprises a slotting assembly 5, a distributing cylinder assembly 7 and a conveying belt assembly 6. The slotting assembly 5 is fixedly arranged above the slot frame 202 and located behind the measuring assembly 3. The bottom of the slotting assembly 5 is provided with a one-way feeding port. The distributing cylinder assembly 7 is fixedly installed at the bottom of the slot frame 202 and the action end of the distributing cylinder assembly 7 corresponds to the one-way feeding port. The controller of the distributing cylinder assembly 7 is communicatively connected with the measuring assembly 3. The measuring assembly 3 sends an action signal to one of the distributing cylinder assemblies 7 according to the measurement result. The distributing cylinder assembly 7 does not act immediately after receiving the action signal. Generally, a workpiece sensing sensor is designed at the corresponding position of each distributing cylinder assembly 7. When the distributing cylinder assembly 7 senses the workpiece, the distributing cylinder assembly 7 acts. The conveying belt assembly 6 corresponds to each discharge port of the slotting assembly 5.

[0081] When the workpiece slides on the slot frame 202, the distributing cylinder assembly 7 receives an action signal. When the workpiece sensing sensor on the distributing cylinder assembly 7 senses the workpiece, the distributing cylinder assembly 7 pushes the workpiece to enter the slotting assembly 5, and then the distributing cylinder assembly 7 returns to the original position and waits for the next instruction.

[0082] In an embodiment, the slotting assembly 5 comprises a slot body 501, a partition 502 and an elastic plate group 504.

[0083] The bottom of the groove body 501 is upwardly raised, the partition piece 502 is fixedly installed on the inner side of the groove body 501, the partition piece 502 divides the inner side of the groove body 501 into multiple partition areas, generally three areas, and three groups of the material distribution air cylinder assembly 7 are also designed, the side surface of the groove body 501 is provided with a material outlet 503 corresponding to each partition area, the bottom of the material outlet 503 is fixedly provided with a guide plate 503a, and the upwardly raised bottom of the groove body 501 is connected with two groups of symmetrically arranged elastic plate groups 504, the elastic plate group 504 includes a rubber connecting block 50403, a horizontal plate 50401 and an inclined plate 50402, the rubber connecting block 50403 and the inclined plate 50402 are located on the two sides of the horizontal plate 50401, and the rubber connecting block 50403 is connected with the groove body 501.

[0084] The workpiece is pushed upward by the material distribution air cylinder assembly 7, the workpiece pushes the elastic plate group 504 upward, the elastic plate group 504 is bent upward, the workpiece passes over the elastic plate group 504, then the material distribution air cylinder assembly 7 is reset downward, the workpiece is above the elastic plate group 504, and then rolls to the material outlet 503 position and falls on the corresponding conveying belt assembly 6.

[0085] In an embodiment, the material distribution air cylinder assembly 7 includes a cylinder body 701 and a bracket 702.

[0086] The cylinder body 701 is fixedly installed at the bottom of the frame body 401, the bracket 702 includes an integrated connecting seat 70201 and a strip-shaped supporting piece 70202, the connecting seat 70201 is fixedly installed at the telescopic end of the top of the cylinder body 701, the top of the strip-shaped supporting piece 70202 is arc-shaped, the strip-shaped supporting piece 70202 is long and strip-shaped and corresponds to the cylindrical workpiece, a protruding portion 70202a is fixedly arranged at the top center of the strip-shaped supporting piece 70202, and the cylindrical workpiece is convenient to roll away from the strip-shaped supporting piece 70202. Embodiment

[0087] A high-speed online measurement method suitable for a centerless grinding machine, which uses the high-speed online measurement device suitable for the centerless grinding machine in the embodiment one and specifically includes the following steps.

[0088] S1, the workpiece a to be measured at the discharge port of the centerless grinding machine enters the cleaning connection assembly 1, the cleaning connection assembly 1 blows and cleans the workpiece a to be measured, guides the workpiece a to be measured to the groove guide assembly 2, the cleaning connection assembly 1 is used for guiding the workpiece a to be measured and cleaning the workpiece a to be measured, so that the surface of the workpiece a to be measured entering the groove guide assembly 2 is clean, and the measurement of the measurement assembly 3 is avoided.

[0089] S2, the workpiece a to be measured is driven by the driving assembly 4 to slide along the length direction of the long slot 202a of the groove guiding assembly 2, and when the workpiece a to be measured passes through the measuring assembly 3, the measuring assembly 3 measures the workpiece a to be measured along the direction perpendicular to the length direction of the long slot 202a.

[0090] As shown in Figure 13 The measuring assembly 3 directly obtains the length m of the workpiece above the groove frame, and calculates the diameter D of the workpiece to be measured according to formula ①.

[0091] ①

[0092] In formula ①, n represents the spacing at the position where the groove guiding assembly supports the workpiece to be measured.

[0093] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A high speed on-line measuring device suitable for use with a centerless grinder, characterized by, include: A cleaning connection assembly (1), wherein the cleaning connection assembly (1) is used to guide the workpiece (a) to be measured from the discharge port of the centerless grinder to one end of the groove guide assembly (2), and the cleaning connection assembly (1) performs air blowing cleaning on the workpiece (a) to be measured; A groove guide assembly (2), the groove guide assembly (2) comprising: Bottom plate (201); A slot frame (202), wherein the slot frame (202) is fixedly mounted on the top of the bottom plate (201), and a long slot (202a) is provided on the top of the slot frame (202); Wear-resistant strips (203), both sides of the long slot (202a) are provided with stepped openings, two groups of wear-resistant strips (203) are provided, and the wear-resistant strips (203) are fixedly installed on the inner side of the stepped openings; A guide member (204), the guide member (204) is fixedly mounted on the bottom plate (201), and the guide member (204) has a circular hole (204a), and the circular hole (204a) corresponds to the end of the long slot (202a); The groove guide assembly (2) is arranged at one end of the cleaning and connecting assembly (1), and the axial direction of the workpiece (a) to be measured is along the length direction of the long notch (202a) of the groove guide assembly (2); A measuring assembly (3), wherein the measuring assembly (3) is fixedly mounted on the groove guide assembly (2), and the measuring assembly (3) measures the workpiece (a) to be measured along a direction perpendicular to the length of the long notch (202a); A driving assembly (4), wherein the driving assembly (4) is installed above the groove guide assembly (2), and the driving assembly (4) is used to drive the workpiece (a) to be measured to move along the length direction of the long notch (202a) of the groove guide assembly (2); A sorting component, wherein the sorting component classifies and transports the workpieces according to the measurement results of the measuring component (3); The cleaning and connecting assembly (1) comprises: An inclined slot frame (101), wherein the inclined slot frame (101) is in an inclined state and has a high end and a low end, and a support frame (104) is fixedly installed at the high end of the inclined slot frame (101); An impurity trough (102), the impurity trough (102) being located on one side of the lower end of the chute frame (101), and the impurity trough (102) being in communication with the interior of the chute frame (101); A spring tube (106) is fixedly connected to a plurality of supporting cross members (105) along the length direction on the inner side of the chute frame (101). The spring tube (106) is located on the inner side of the chute frame (101) and above the supporting cross member (105). A connecting tube (106a) is fixedly provided on the first end of the spring tube (106). A transfer shell (108) is fixedly connected to the second end of the spring tube (106). The transfer shell (108) is fixedly provided on the inner side of the high end of the chute frame (101). A square feed channel (108a) is provided on the top of the transfer shell (108), and an air inlet installation port (108b) is provided on the side of the transfer shell (108). An air inlet joint (107) is threadedly mounted with the air inlet mounting port (108b), and the end or inner side of the air inlet mounting port (108b) is fixedly provided with a multi-hole distribution disc (109); A spiral air pipe (103) is fixedly connected with the chute frame (101), and the spiral air pipe (103) is spirally arranged outside the spring pipe (106), and the side of the spiral air pipe (103) facing the spring pipe (106) is provided with a blowing hole, the bottom end of the spiral air pipe (103) is blocked, and the top end of the spiral air pipe (103) is fixedly provided with an adapter pipe (103a) fixedly connected with the side of the air inlet joint (107); The measurement assembly (3) comprises parallel light supplementing members (301), a camera module (302) and a data processing module, the parallel light supplementing members (301) and the camera module (302) are fixedly installed on the bottom plate (201), and the parallel light supplementing members (301) and the camera module (302) are located on both sides of the chute frame (202).

2. A high speed on-line measuring device suitable for use in a centerless grinding machine according to claim 1, characterized in that, The driving assembly (4) comprises: A frame body (401) is fixedly installed on the bottom plate (201), and the frame body (401) is located outside the chute frame (202); A first roller shaft (402), a second roller shaft (403) and a driving roller shaft (405) are rotationally installed on the inner side of the frame body (401) and above the chute frame (202) in a triangular distribution, the first roller shaft (402) and the second roller shaft (403) have the same height, and the driving roller shaft (405) is located above the first roller shaft (402) and the second roller shaft (403), a tension roller shaft (404) is installed on the inner side of the frame body (401) and between the first roller shaft (402) and the second roller shaft (403), and a transmission belt (406) is installed on the first roller shaft (402), the second roller shaft (403) and the driving roller shaft (405), and the tension roller shaft (404) is located below the transmission belt (406); A driving member (407) is fixedly installed on the side of the frame body (401), and an output end of the driving member (407) is in transmission connection with the driving roller shaft (405).

3. A high speed on-line measuring device suitable for use in a centerless grinding machine according to claim 2, characterized in that: The transmission belt (406) comprises a first rubber layer (40602), a sponge layer (40601) and a second rubber layer (40603) from inside to outside.

4. A high speed on-line measuring device suitable for use in a centerless grinding machine as claimed in claim 1, wherein, The sorting assembly comprises: A slotting assembly (5) is fixedly arranged above the chute frame (202) and located behind the measurement assembly (3), and the bottom of the slotting assembly (5) is provided with a one-way feeding port; A distributing air cylinder assembly (7) is fixedly installed on the bottom of the chute frame (202), and the action end of the distributing air cylinder assembly (7) corresponds to the one-way feeding port; A conveying belt assembly (6) corresponds to each discharge port of the slotting assembly (5).

5. A high speed on-line measuring device suitable for use in a centerless grinding machine according to claim 4, characterized in that, The slotting assembly (5) comprises: A groove body (501) is upwardly raised at the bottom. A partition (502) is fixedly installed on the inner side of the groove body (501), and the partition (502) divides the inner side of the groove body (501) into multiple partition areas; The side of the groove body (501) is provided with a discharge port (503) corresponding to each partition area, and the bottom of the discharge port (503) is fixedly provided with a guide plate (503a); The upwardly raised bottom of the groove body (501) is connected with two groups of symmetrically arranged elastic plate groups (504), the elastic plate group (504) comprises a rubber connecting block (50403), a horizontal plate (50401) and an inclined plate (50402), the rubber connecting block (50403) and the inclined plate (50402) are located on the two sides of the horizontal plate (50401), and the rubber connecting block (50403) is connected with the groove body (501).

6. A high speed on-line measuring device suitable for use in a centerless grinding machine according to claim 4, characterized in that, The distribution air cylinder assembly (7) comprises: A cylinder main body (701) and a bracket (702), the bracket (702) comprises an integrated connecting seat (70201) and a strip-shaped supporting piece (70202), the connecting seat (70201) is fixedly installed on the telescopic end of the top of the cylinder main body (701), the top of the strip-shaped supporting piece (70202) is arc-shaped, and a protruding part (70202a) is fixedly arranged at the center position of the top of the strip-shaped supporting piece (70202).

7. A high speed on-line measuring method suitable for use in a centerless grinding machine, characterized in that, The high-speed online measurement device suitable for the centerless grinding machine according to any one of claims 1-6 comprises the following steps: S1, the workpiece (a) to be measured at the discharge port of the centerless grinding machine enters the cleaning connection assembly (1), the cleaning connection assembly (1) blows and cleans the workpiece (a) to be measured, and guides the workpiece (a) to be measured to the groove guide assembly (2); S2, the workpiece (a) to be measured is driven by the driving assembly (4) to slide along the length direction of the long slot (202a) of the groove guide assembly (2) in the groove guide assembly (2), and when the workpiece (a) to be measured passes through the measurement assembly (3), the measurement assembly (3) measures the workpiece (a) to be measured along the direction perpendicular to the length direction of the long slot (202a); Wherein, the measurement assembly (3) directly obtains the length m of the workpiece above the groove frame (202), and calculates the diameter D of the workpiece (a) to be measured according to formula ①. In formula ①, n represents the spacing at the position where the groove guide assembly (2) supports the workpiece (a) to be measured.

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