Workpiece thickness automatic detection device

Abstract

The invention provides a workpiece thickness automatic detection device which comprises a rack, and a detection platform, a feeding conveying belt and a discharging conveying belt are arranged on the rack. A first detection element and a second detection element are arranged on the upper side and the lower side of the detection platform on the rack respectively, the second detection element slidably penetrates through the lower detection platform to abut against the lower end face of the workpiece, and the first detection element abuts against the upper end face of the workpiece; a material blocking plate capable of ascending and descending is arranged above one end of the discharging conveying belt, and a feeding sensor located above the outlet end of the feeding conveying belt and a discharging sensor located above the inlet end of the discharging conveying belt are further arranged on the machine frame. The system runs, when the discharging sensor does not detect the workpieces, the material blocking plate moves downwards to the material blocking station, and when the feeding sensor detects the workpieces and keeps the workpieces for a certain time, the material blocking plate moves upwards to the initial position. According to the workpiece thickness automatic detection device, the contour dimension of a product can be detected without transferring after the product is ground, the detection precision is high, and manual participation is not needed.

Description

Technical Field

[0001] The present invention relates to the technical field of automatic detection, and in particular to an automatic detection device for workpiece thickness. Background Art

[0002] At present, magnetic steel is generally manufactured by powder metallurgy, and then ground by grinding equipment after production; grinding is the most common and widely used processing method in all mechanical processing. The outer surface or corner position of most workpieces needs to be ground into the required designed shape. In order to ensure that the product meets the design requirements after processing, it is necessary to focus on the detection of the outer contour size (length, width or thickness) of the processed product to determine whether the workpiece grinding is qualified.

[0003] In the prior art, the most common method for dimensional inspection of magnetic steel after grinding is manual sampling, that is, a certain proportion of the same batch of products is sampled for shape and contour dimension inspection after processing to confirm the product qualification rate. During the inspection, the products need to be transferred to the corresponding inspection equipment, which not only prolongs the production cycle, but also makes the products prone to bumps during multiple transfers, resulting in an increased breakage rate of the products. In addition, the sampling method cannot truly reflect the qualification rate of the entire batch of products, and unqualified products may be mixed in uncontrollably, affecting the authenticity of the inspection. Summary of the invention

[0004] In order to overcome at least one of the defects in the above-mentioned prior art, the present invention provides an automatic workpiece thickness detection device, which can detect the outer contour size of the product without transferring the product during the unloading process after the product is ground. The detection accuracy is high and no human intervention is required throughout the process, thus saving labor costs and improving work efficiency.

[0005] The present invention provides an automatic workpiece thickness detection device: comprising a frame, the frame is provided with a detection platform, a loading conveyor belt for transferring the workpiece to the detection platform, and a unloading conveyor belt for transferring the workpiece on the detection platform to the next workstation; a first detection element is connected to the frame above the detection platform and can be lifted and lowered, and a second detection element is also connected to the frame below the detection platform; a connecting hole is provided on the detection platform, a probe of the second detection element is slidably inserted into the connecting hole and is located directly below the probe of the first detection element, and when the workpiece slides over the detection platform, the probe of the first detection element and the probe of the second detection element are respectively slidably abutted against the upper and lower end surfaces thereof; The unloading conveyor belt is provided with a material baffle plate which can move up and down near the detection platform, and the frame is also provided with a loading sensor and an unloading sensor, the loading sensor is located above one end of the loading conveyor belt near the detection platform, and the unloading sensor is located above one end of the unloading conveyor belt near the detection platform and on the left side of the material baffle plate; when the system is running, when the unloading sensor does not detect the workpiece, the material baffle plate descends to the material baffle station, and as the workpieces continue to accumulate, when the loading sensor detects the workpiece and maintains it for a certain period of time, the material baffle plate ascends to the initial position.

[0006] Compared with the prior art, the automatic workpiece thickness detection device of the present invention has the following advantages: The detection device of the structure of the present invention is a special mechanism, which is arranged at the discharge end of the grinder and is used for real-time detection of the workpiece after grinding. Specifically, it includes a frame arranged at the discharge end of the grinder, a detection platform is arranged on the frame, and a loading conveyor belt and a unloading conveyor belt are respectively arranged at both ends of the detection platform, and a first detection element and a second detection element that can be lifted and lowered are respectively arranged above and below the detection platform. In the process of the workpiece being translated from the detection platform, the probes of the first detection element and the second detection element are respectively abutted against the upper surface and the lower surface of the workpiece, and the thickness size of the workpiece is calculated through the test data of the two detection elements. The detection elements arranged in the upper and lower directions can better ensure the accuracy of the detection results, and the lower surface of the workpiece can be used as a reference surface. The reference surface during the movement The surface remains basically stable, and a second detection element is also arranged on the lower surface of the workpiece, so as to avoid the detection result being affected by the fluctuation of the reference surface; in addition, the workpiece can be continuously and automatically detected through the detection platform under the action of the corresponding conveyor belt, without human intervention, and the detection efficiency is high; in addition, in the detection device of the present invention, a loading sensor and a unloading sensor are respectively arranged above the corresponding positions of the loading conveyor belt and the unloading conveyor belt, and a material baffle plate is arranged at the entrance end of the unloading conveyor belt; through the mutual cooperation of the loading sensor, the unloading sensor, the material baffle plate and the controller, and under the operation of the corresponding control program, the workpiece is continuously conveyed to the right, and the thickness of the workpiece is automatically detected during the conveying process. The entire detection process does not require human intervention, and is fast, efficient and has high detection accuracy.

[0007] As an improvement, a support frame is connected to the frame at the rear side of the detection platform, and the support frame is connected to a vertically slidable fixed seat and a driving component for driving the fixed seat to slide up and down. The first detection element is connected to the fixed seat, and a grating ruler for detecting the up and down movement distance of the fixed seat is connected between the fixed seat and the support frame.

[0008] Furthermore, the driving assembly includes a servo motor, a screw and a screw slider, the upper end of the screw is connected to the output shaft of the servo motor, the screw slider is fitted outside the screw, and the fixing seat is connected to the screw slider.

[0009] As a further improvement, a dovetail-shaped positioning block is protruded outwardly from the side wall of the support frame, and a guide groove which is slidably assembled with the positioning block is provided on the side wall of the screw slider.

[0010] As a further improvement, the fixing seat is connected to a mounting frame, the mounting frame is connected to two pressing rollers located above the detection platform and used for elastically abutting against the upper surfaces of both ends of the workpiece to be detected, and the first detection element is located between the two pressing rollers.

[0011] Further improvement, two first screws are vertically slidably penetrated along the upper edge of the horizontal fixed plate of the mounting frame, the lower ends of the two first screws are connected to the first connecting plates, the two first connecting plates are slidably connected to the vertical plate of the mounting frame through linear guide rails, and elastic elements are arranged between the tops of the two first connecting plates and the horizontal fixed plate; the two pressing rollers are respectively connected to the lower ends of the two first connecting plates.

[0012] Further improvement, a second screw is vertically slidably provided on the upper edge of the horizontal fixed plate of the mounting frame, the lower end of the second screw is connected to a second connecting plate, the second connecting plate is slidably connected to the vertical plate of the mounting frame via a linear guide rail, and an elastic element is provided between the top of the second connecting plate and the horizontal fixed plate, the lower end of the second connecting plate is connected to a guide wheel, and the guide wheel is located directly above the discharge end of the loading conveyor belt.

[0013] As a further improvement, the upper end surface of the detection platform is provided with a plurality of V-shaped grooves which form a certain angle with the moving direction of the workpiece, so that a plurality of toothed scraping strips are formed on the upper surface of the detection platform.

[0014] In the improvement, the loading conveyor belt, the unloading conveyor belt and the detection platform are located in the same straight line direction, both ends of the detection platform are provided with arc-shaped inner grooves, and the two inner grooves respectively cooperate with the outlet end of the loading conveyor belt and the inlet end of the unloading conveyor belt.

[0015] On the other hand, the present invention also provides a workpiece processing system, including a grinder host, a controller and an automatic detection device of any one of the aforementioned structures, wherein the discharge port of the grinder host is connected to the feeding conveyor belt through a transmission component as a feeding port, and the grinder host includes two relatively arranged grinding discs and an adjustment mechanism for adjusting the distance between the two grinding discs; the first detection element, the second detection element and the adjustment mechanism are all connected to the controller by electrical signals. The two detection elements are respectively connected to the controller to realize automatic recording of the thickness size of the workpiece, and can also be compared with the qualified data pre-stored in the controller. When it is found that the workpiece size is continuously unqualified, the signal is fed back to the grinder host in time, and the distance between the two grinding discs is adjusted in time through the grinding disc adjustment mechanism, and the grinding value of the workpiece is corrected and trimmed online, effectively ensuring the workpiece processing accuracy and improving the product qualification rate.

[0016] Other improved features and advantages of the present invention will be described in the following specific embodiments, and partly become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures particularly pointed out in the description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional structural diagram of the automatic detection device for workpiece thickness of the present invention; Figure 2 for Figure 1 Another angle diagram of the automatic detection device for the thickness of the workpiece; Figure 3 for Figure 1 The X in the figure is a magnified structural diagram; Figure 4 for Figure 1 Another angle diagram of the automatic detection device for the thickness of the workpiece; Figure 5 for Figure 4 The structure diagram at Y in the middle is enlarged; Figure 6 for Figure 1 Partial front view of the automatic detection device for the thickness of the workpiece; Figure 7 for Figure 1 Schematic diagram of the partial structure of the automatic detection device for the thickness of the workpiece; Figure 8 It is a schematic diagram of the structure of the workpiece processing system of the present invention.

[0018] Description of reference numerals: 1. Frame; 2. Detection platform; 3. Loading conveyor belt; 4. Unloading conveyor belt; 5. First detection element; 6. Second detection element; 7. Connecting hole; 8. Baffle plate; 9. Loading sensor; 10. Unloading sensor; 11. Support frame; 12. Fixed seat; 13. Grating ruler; 14. Servo motor; 15. Screw; 16. Screw slider; 17. Positioning block; 18. Mounting frame; 19. Pressing roller; 20. First screw; 21. First connecting plate; 22. Elastic element; 23. Second screw; 24. Second connecting plate; 25. Guide wheel; 26. V-shaped groove; 27. Grinding machine host; 28. Conveying assembly; 29. ​​Grinding disc; 30. Adjustment mechanism; 31. Probe; 32. Positioning baffle plate. DETAILED DESCRIPTION

[0019] First, those skilled in the art should understand that these implementations are only used to explain the technical principles of the embodiments of the present application, and are not intended to limit the protection scope of the embodiments of the present application. Those skilled in the art can make adjustments to them as needed to adapt to specific application scenarios.

[0020] In the description of the embodiments of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "fixed" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.

[0021] The present application is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0022] See also Figure 1 to Figure 7 As shown, the embodiment of the present application discloses an automatic workpiece thickness detection device, including a frame 1, on which a loading conveyor belt 3, a unloading conveyor belt 4 and a detection platform 2 are arranged, one end of the detection platform 2 is connected with the outlet end of the loading conveyor belt 3, and the other end is connected with the inlet end of the unloading conveyor belt 4, that is, the workpiece comes out of the grinding equipment and enters the loading conveyor belt 3 to be automatically conveyed to the detection platform 2 to realize the detection process, and then the workpiece enters the unloading conveyor belt 4 and is automatically conveyed to the next link; specifically, a first detection element 5 is connected to the frame 1 above the detection platform 2 and can be raised and lowered, and a second detection element 6 is also connected to the frame 1 below the detection platform 2, and a connecting hole 7 is opened on the detection platform 2, and a probe 31 of the second detection element 6 is slidably arranged in the connecting hole 7, when the ground workpieces slide from the loading conveyor belt 3 to the detection platform 2 one by one, the probe 31 of the first detection element 5 and the probe 31 of the second detection element 6 are respectively slidably abutted against the upper and lower end surfaces of the workpiece, so as to realize the automatic detection of the workpiece thickness.

[0023] Furthermore, in the present embodiment, a baffle plate 8 capable of moving up and down is provided above the unloading conveyor belt 4 near the detection platform 2. Preferably, a workpiece can just be parked between the left end of the baffle plate 8 and the entrance end of the unloading conveyor belt 4, and the baffle plate 8 is lifted and lowered by a lifting drive cylinder, which is electrically connected to the controller by signal. A loading sensor 9 and a unloading sensor 10 are also provided on the frame 1. The loading sensor 9 is located above one end of the loading conveyor belt 3 near the detection platform 2, and the unloading sensor 10 is located above one end of the unloading conveyor belt 4 near the detection platform 2 and on the left side of the baffle plate 8. When the loading sensor 9 detects the workpiece, the baffle plate 8 descends to the material blocking position, and when the unloading sensor 10 detects the workpiece, the baffle plate 8 ascends to the initial position.

[0024] The working principle of the above structure is as follows: the distance between the first detection element 5 and the second detection element 6 is adjusted according to the thickness of the workpiece, and the loading conveyor belt 3 is used to transport the workpieces one by one to the detection platform 2 at a certain interval. Since the detection platform 2 is stationary, when the workpiece moves to the detection platform 2, it needs to be pushed by the workpiece behind to continue to move to the right until it moves to the unloading conveyor belt 4.

[0025] The detection process is as follows: When the workpiece on the far right is about to contact the baffle plate 8, the unloading sensor 10 detects the workpiece signal, and as the workpiece continues to be pushed to the right, until the workpiece on the far right is against the baffle plate 8, the loading conveyor belt 3 continues to drive the workpiece to move to the right. When the loading sensor 9 detects the workpiece and remains motionless for a certain period of time, the controller controls the baffle plate 8 to move upward. After losing the blocking effect of the baffle plate 8, the workpiece on the far right will be taken away by the unloading conveyor belt 4 and move to the right. At the same time, the loading conveyor belt 3 feeds the material again and moves the first set distance to the right, then stops delaying, and waits for the system to read the first detection point data of the workpiece at the detection position. After completing the first data recording, the loading conveyor belt 3 feeds the material again and moves the second set distance to the right, then stops delaying, and waits for the system to read the second cutting detection point data of the workpiece at the detection position. The workpiece at the detection position completes two detection points After the data is recorded, the system calculates the average value as the thickness data of the workpiece; when the feeding conveyor belt 3 is fed twice, the feeding conveyor belt 3 will have a certain time delay; and after the corresponding delay time, the unloading sensor 10 continues to start detecting signals. If the unloading sensor 10 can detect the workpiece signal, it means that the length of the workpiece has exceeded more than half of its length and is located on the unloading conveyor belt 4, then the workpiece will be directly taken away automatically; if the unloading sensor 10 does not detect the workpiece signal, the baffle plate 8 will go down again; after the delay of the feeding conveyor belt 3 is completed, the workpiece is pushed to the right again until the rightmost workpiece is against the baffle plate 8. When the feeding sensor 3 detects the workpiece again and remains motionless for a certain period of time, the controller controls the baffle plate 8 to move upward at this time. After losing the blocking effect of the baffle plate 8, the rightmost workpiece will be taken away by the unloading conveyor belt 4 and move to the right, and then the feeding conveyor belt 3 feeds the material at the designed distance twice to realize the data reading of the two detection points of the latter workpiece, and continuously goes back and forth in this way, so as to realize the continuous automatic detection of the workpiece, and the workpiece is detected through two points, and the data is more accurate.

[0026] What needs to be noted in this process is that during one detection process, the unloading sensor 10 will only start the next cycle of detection operation after the system completes one detection cycle of the workpiece (one workpiece completes the detection); that is, when the rightmost workpiece is taken away by the unloading conveyor belt 4, the unloading sensor 10 will not immediately perform the signal detection of the next cycle, but will wait until the loading conveyor belt 3 completes two set distance transmissions before starting the next cycle of detection.

[0027] In addition, in the above-mentioned detection device, since the two detection elements are generally located in the middle position of the detection platform 2, the first few workpieces when the system just starts running are not actually inspected, so the first few workpieces need to be removed; when the workpiece on the far right abuts against the baffle plate 8, the workpieces starting from the workpiece located between the two detection elements are inspected and need to be transferred to the next process.

[0028] During the above detection process, in each detection stage, the two distance lengths that the feeding conveyor belt 3 drives the workpiece to move to the right can be set according to the actual length of the product. In this embodiment, for example, if the workpiece length is 30 mm, then the first set distance length is generally about 5 mm, that is, the first detection point is 5 mm away from the front end of the workpiece, and the second set distance length is 20 mm, that is, the second detection point is 25 mm away from the front end of the workpiece.

[0029] In some other embodiments, if the workpiece is short, the system may set only one transmission distance, that is, the workpiece only reads data from one monitoring point. If the workpiece is long, three transmission distances may be set, that is, each product reads data from three monitoring points.

[0030] More specifically, in the above-mentioned inspection process, the workpiece can be inspected continuously, that is, each workpiece is inspected; the transmission distance between two inspection processes can also be lengthened, that is, after the current workpiece is inspected, the next inspection point directly jumps to the subsequent second workpiece, skipping one workpiece in the middle, which is equivalent to inspecting every two workpieces.

[0031] In the above structure, the feeding conveyor belt 3 is preferably a stepping feeding mechanism, that is, each feeding movement can be adjusted and controlled by a specific encoder to be suitable for the transmission of workpieces of different conventional specifications, ensuring that the thickness data of each workpiece can be accurately detected.

[0032] In addition, the first detection element 5 and the second detection element 6 involved in this embodiment are both existing contact displacement sensors, specifically capacitive micrometers. In practical applications, the two detection elements are respectively connected to the controller to realize automatic recording of the thickness of the workpiece, and can also be compared with the qualified data pre-stored in the controller. When it is found that the workpiece size is continuously unqualified, the signal is fed back to the grinding equipment in time, and the spacing between the grinding discs is adjusted in time to realize online linkage adjustment.

[0033] In the above structure, during the translation of the workpiece from the detection platform 2, the probes 31 of the first detection element 5 and the second detection element 6 are respectively abutted against the upper surface and the lower surface of the workpiece, and the thickness of the workpiece is calculated through the test data of the two detection elements. The detection elements are arranged in the upper and lower directions to better ensure the accuracy of the detection results. The lower surface of the workpiece can be used as a reference plane, and the reference plane remains basically stable during the movement. In addition, a second detection element 6 is also arranged on the lower surface of the workpiece, so as to avoid affecting the detection results due to fluctuations in the reference plane.

[0034] Furthermore, in this embodiment, a support frame 11 is connected to the rear side of the detection platform 2 on the frame 1, a vertically slidable fixed seat 12 and a driving component for driving the fixed seat 12 to slide up and down are connected to the support frame 11, the first detection element 5 is connected to the fixed seat 12, and a grating ruler 13 for detecting the up and down movement distance of the fixed seat 12 is connected between the fixed seat 12 and the support frame 11. In this structure, the provision of the grating ruler 13 makes the up and down adjustment distance of the fixed seat 12 more precise and controllable.

[0035] Preferably, see the attached Figure 2 The driving assembly in the above structure includes a servo motor 14, a screw rod 15 and a screw slider 16. The servo motor 14 is vertically arranged on the top of the support frame 11, and the screw rod 15 is also vertically arranged, and the upper end of the screw rod 15 is connected to the output shaft of the servo motor 14. The screw slider 16 is fitted outside the screw rod 15, and the fixed seat 12 is connected to the screw slider 16. The operation of the servo motor 14 drives the screw rod 15 to rotate, thereby driving the screw slider 16 to rise and fall along the axial direction of the screw rod 15, and then drives the fixed seat 12 to rise and fall vertically, and finally realizes the lifting and lowering adjustment of the first detection element 5, and the adjustment distance is monitored in real time by the grating ruler 13. After such a setting, when the specifications of the workpiece to be detected change, the thickness of the workpiece is input through the corresponding control interface, and the servo motor 14 can automatically operate to realize the height adjustment of the first detection element 5.

[0036] In addition, in order to ensure the smooth lifting and lowering of the fixed seat 12, a positioning block 17 is connected to the frame 1, and the screw slider 16 slides in the guide groove; the preferred positioning block 17 is a dovetail structure, and the guide groove is also a dovetail groove shape. The dovetail sliding matching structure can not only ensure the smooth vertical sliding but also limit the horizontal direction, thereby better ensuring the smooth up and down movement of the fixed seat 12.

[0037] For more details, see the attached Figure 2 , 3In this embodiment, a mounting frame 18 is connected to the front side of the fixed seat 12, and the mounting frame 18 is connected with two press rollers 19 located above the detection platform 2 and used to elastically abut against the upper surfaces of the two ends of the workpiece to be detected, and the first detection element 5 is located between the two press rollers 19. After the press rollers are set, it is better to ensure that the workpiece can pass smoothly between the two detection elements, thereby improving the detection accuracy. Preferably, two first screws 20 are vertically slidably penetrated on the upper edge of the horizontal fixed plate of the mounting frame 18, and the lower ends of the two first screws 20 are connected to the first connecting plates 21. The two first connecting plates 21 are both slidably connected to the vertical plate of the mounting frame 18 through linear guide rails, and elastic elements 22 are provided between the tops of the two first connecting plates 21 and the horizontal fixed plate; the two press rollers 19 are respectively connected to the lower ends of the two first connecting plates 21. In this structure, the two press rollers can elastically fluctuate in the vertical direction to ensure that they can always fit and press against the upper surface of the workpiece. The elastic element 22 is preferably a cylindrical spring. The two cylindrical springs are sleeved on the outside of the two first screw rods 20, and the upper and lower ends thereof are respectively in contact with the lower end surface of the horizontal fixing plate and the upper end surface of the first connecting plate 21.

[0038] On the other hand, see Appendix Figure 3 In this embodiment, a second screw rod 23 is vertically slidably provided on the upper side of the horizontal fixed plate of the mounting frame 18, and a second connecting plate 24 is connected to the lower end of the second screw rod 23. The second connecting plate 24 is slidably connected to the vertical plate of the mounting frame 18 through a linear guide rail, and an elastic element 22 is provided between the top of the second connecting plate 24 and the horizontal fixed plate, and a guide wheel 25 is connected to the lower end of the second connecting plate 24. The guide wheel 25 is located directly above the discharge end of the feeding conveyor belt 3. Here, the guide wheel 25 has a rightward driving force, so that the workpieces on the feeding conveyor belt 3 can be more stably transferred to the detection platform 2, thereby pushing the workpieces on the detection platform 2 to move rightward as a whole, ensuring that each workpiece can achieve accurate thickness detection.

[0039] In addition, in the above structure, see the attached Figure 7 , a number of drain grooves are provided on the upper end surface of the detection platform 2 to achieve the draining and drying effect of the workpiece. Preferably, the drain groove is a V-shaped groove 26, and the V-shaped groove 26 forms a certain angle with the moving direction of the workpiece, so that a number of toothed scraping strips are formed on the upper surface of the detection platform 2. Therefore, when the workpiece passes horizontally from left to right through the detection platform 2, in addition to collecting the accumulated water, the particulate impurities on its lower end surface can also be scraped off to avoid the particulate matter affecting the detection results. And the V-shaped groove 26 can be set to be high on one side and low on the other side, which is conducive to the timely discharge of accumulated water.

[0040] In this embodiment, see the attached Figure 3, positioning baffles 32 are provided on both sides of the frame 1 in the width direction of the loading conveyor belt 3 and the unloading conveyor belt 4, and each positioning baffle 32 includes a vertical baffle and a horizontal connecting plate in a right angle shape, and a positioning channel for the workpiece channel is formed between the vertical baffles of the two relatively arranged positioning baffles 32; a waist-shaped hole extending along the width direction of the positioning channel is provided on the horizontal connecting plate of each positioning baffle 32, and connecting screws (not shown in the figure) for connecting each positioning baffle 32 to the frame 1 are penetrated in the waist-shaped hole, and the position of the horizontal connecting plate can be customized through the waist-shaped hole, thereby adjusting the width of the positioning channel to adapt to workpieces of different specifications, with high versatility.

[0041] Specifically, in the present embodiment, the loading conveyor belt 3, the unloading conveyor belt 4 and the detection platform 2 are located in the same straight line direction, and arc-shaped inner grooves are provided at both ends of the detection platform 2, and the two inner grooves are respectively matched with the outlet end of the loading conveyor belt 3 and the inlet end of the unloading conveyor belt 4, so as to ensure that the two ends of the detection platform 2 are better connected with the loading conveyor belt 3 and the unloading conveyor belt 4, and the upper surface of the detection platform 2 is flush with the upper surfaces of the loading conveyor belt 3 and the unloading conveyor belt 4, so as to ensure the stability of the workpiece during movement.

[0042] On the other hand, the present application also discloses a workpiece processing system, including a grinder host 27, a controller and an automatic detection device, the discharge port of the grinder host 27 is connected to the feeding conveyor belt 3 through a transmission component 28, and the grinder host 27 includes two grinding discs 29 arranged opposite to each other and an adjustment mechanism 30 for adjusting the spacing between the two grinding discs 29; the first detection element 5, the second detection element 6 and the adjustment mechanism 30 are all connected to the controller by electrical signals. That is, the workpiece at the discharge port of the grinder host 27 enters the feeding conveyor belt 3 of the detection device through the corresponding transmission component 28, and enters the detection platform 2 for detection, and the two detection elements are respectively connected to the controller by electrical signals to realize automatic recording of the thickness size of the workpiece, and can also be compared with the qualified data pre-stored in the controller. When it is found that the workpiece size is continuously unqualified, the signal is fed back to the grinder host 27 in time, and the spacing between the two grinding discs 29 is adjusted in time through the adjustment mechanism 30, and the grinding value of the workpiece is corrected and trimmed online, effectively ensuring the precision requirements of the workpiece grinding processing, and can realize the automatic detection of the grinding thickness, and the detection result is linked to the grinder host 27 in real time.

[0043] In the description of the present application, the reference term "present embodiment" describes that the specific features, mechanisms, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, mechanisms, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples without contradiction.

[0044] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. A device for automatically detecting workpiece thickness, comprising a frame (1), characterized in that: The frame (1) is provided with a detection platform (2), a loading conveyor belt (3) for conveying a workpiece to the detection platform (2), and a unloading conveyor belt (4) for conveying the workpiece on the detection platform (2) to the next workstation; a first detection element (5) which can be lifted and lowered is provided on the frame (1) above the detection platform (2); a second detection element (6) is provided on the frame (1) below the detection platform (2); a connecting hole (7) is provided on the detection platform (2); a probe (31) of the second detection element (6) is slidably arranged in the connecting hole (7) and is located directly below the probe (31) of the first detection element (5); when the workpiece slides over the detection platform (2), the probe (31) of the first detection element (5) and the probe (31) of the second detection element (6) respectively slide and abut against the upper and lower end surfaces thereof; A baffle plate (8) capable of moving up and down is arranged above the unloading conveyor belt (4) near the detection platform (2), and a loading sensor (9) and a unloading sensor (10) are also arranged on the frame (1), wherein the loading sensor (9) is located above one end of the unloading conveyor belt (3) near the detection platform (2), and the unloading sensor (10) is located above one end of the unloading conveyor belt (4) near the detection platform (2) and on the left side of the baffle plate (8); when the system is running, when the unloading sensor (9) does not detect a workpiece, the baffle plate (8) moves downward to the baffle station, and as the workpieces continue to accumulate, when the loading sensor (10) detects a workpiece and keeps doing so for a certain period of time, the baffle plate (8) moves upward to the initial position.

2. The automatic workpiece thickness detection device according to claim 1 is characterized in that: A support frame (11) is connected to the frame (1) at the rear side of the detection platform (2); a fixed seat (12) which can slide vertically and a driving component for driving the fixed seat (12) to slide up and down are connected to the support frame (11); the first detection element (5) is connected to the fixed seat (12); and a grating ruler (13) for detecting the vertical movement distance of the fixed seat (12) is connected between the fixed seat (12) and the support frame (11).

3. The automatic workpiece thickness detection device according to claim 2 is characterized in that: The driving assembly comprises a servo motor (14), a screw rod (15) and a screw rod slider (16); the upper end of the screw rod (15) is connected to the output shaft of the servo motor (14); the screw rod slider (16) is fitted outside the screw rod (15); and the fixing seat (12) is connected to the screw rod slider (16).

4. The automatic workpiece thickness detection device according to claim 3 is characterized in that: A dovetail-shaped positioning block (17) is protruding outwardly from the side wall of the support frame (11), and a guide groove for slidingly assembling with the positioning block (17) is provided on the side wall of the screw slider (16).

5. The automatic workpiece thickness detection device according to any one of claims 2 to 4, characterized in that: The fixing seat (12) is connected to a mounting frame (18), and the mounting frame (18) is connected to two pressing rollers (19) located above the detection platform (2) and used for elastically abutting against the upper surfaces of the two ends of the workpiece to be detected, and the first detection element (5) is located between the two pressing rollers (19).

6. The automatic workpiece thickness detection device according to claim 5 is characterized in that: Two first screw rods (20) are vertically slidably provided on the horizontal fixed plate of the mounting frame (18), the lower ends of the two first screw rods (20) are connected to the first connecting plates (21), the two first connecting plates (21) are slidably connected to the vertical plate of the mounting frame (18) through linear guide rails, and elastic elements (22) are provided between the tops of the two first connecting plates (21) and the horizontal fixed plate; the two pressing rollers (19) are respectively connected to the lower ends of the two first connecting plates (21).

7. The automatic workpiece thickness detection device according to claim 6 is characterized in that: A second screw rod (23) is vertically slidably provided on the horizontal fixed plate of the mounting frame (18); the lower end of the second screw rod (23) is connected to a second connecting plate (24); the second connecting plate (24) is slidably connected to the vertical plate of the mounting frame (18) via a linear guide rail; an elastic element (22) is provided between the top of the second connecting plate (24) and the horizontal fixed plate; the lower end of the second connecting plate (24) is connected to a guide wheel (25); the guide wheel (25) is located directly above the discharge end of the loading conveyor belt (3).

8. The automatic workpiece thickness detection device according to claim 1 is characterized in that: The upper end surface of the detection platform (2) is provided with a plurality of V-shaped grooves (26) which form a certain angle with the moving direction of the workpiece, so that a plurality of tooth-shaped scraping strips are formed on the upper surface of the detection platform (2).

9. The automatic workpiece thickness detection device according to claim 1, characterized in that: The loading conveyor belt (3), the unloading conveyor belt (4) and the detection platform (2) are located in the same straight line direction, and arc-shaped inner grooves are provided at both ends of the detection platform (2), and the two inner grooves are respectively matched with the outlet end of the loading conveyor belt (3) and the inlet end of the unloading conveyor belt (4).

10. A workpiece processing system, characterized in that: It comprises a grinder main unit (27), a controller and an automatic detection device as claimed in any one of claims 1 to 9, wherein the discharge port of the grinder main unit (27) is connected to the feeding conveyor belt (3) via a transmission component (28) and is a feeding port, and the grinder main unit (27) comprises two grinding discs arranged opposite to each other and an adjustment mechanism (30) for adjusting the distance between the two grinding discs; the first detection element (5), the second detection element (6) and the adjustment mechanism (30) are all connected to the controller by electrical signals.

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