An automatic grinder machine

Abstract

The utility model relates to spring processing equipment technical field, especially a kind of automatic grinding machine;Including rack, feeding mechanism, front end face grinding mechanism, rear end face grinding mechanism, front end face detection mechanism, rear end face detection mechanism and clamping mechanism, the feeding mechanism is set on the rack and is through the rack, the front end face grinding mechanism and the rear end face grinding mechanism are set along the transmission direction's left and right sides of the feeding mechanism, the front end face detection mechanism is set in the side of the front end face grinding mechanism towards the feeding mechanism, the rear end face detection mechanism is set in the side of the rear end face grinding mechanism towards the feeding mechanism, the clamping mechanism is set between the rack and the feeding mechanism;The utility model solves the problem that current grinding mode cannot accommodate too long spring, easily lead to long spring bending deformation and difficult to guarantee end surface quality, significantly improve product quality and production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of spring processing equipment technology, and in particular to an automatic grinding machine. Background Technology

[0002] Long springs have a significantly larger length-to-diameter ratio than conventional compression springs and are commonly found in critical fields such as heavy machinery, automotive suspensions, aerospace, and industrial valves, making them essential for modern industrial development. Grinding the spring ends is a crucial process in spring manufacturing. Its purpose is to obtain flat, smooth, and parallel end faces at both ends of the spring, ensuring that the end faces are perpendicular to the spring axis. This process directly determines whether the spring can stand stably, whether the force is evenly distributed, its fatigue life, and its suitability for high-precision assembly.

[0003] Currently, the double-disc spring grinding machine is widely used in the industry for grinding the end faces of springs. Its basic working logic is to place a batch of springs between the upper and lower grinding discs so that the two end faces contact the grinding discs, thereby achieving the grinding of the end faces. This equipment is technically mature, but it is not suitable for long springs with excessively large length-to-diameter ratios. The physical structure of the double-disc spring grinding machine does not allow it to accommodate excessively long workpieces, and its clamping method cannot stably hold long springs. This makes long springs prone to bending, bouncing, and twisting during the grinding process. Furthermore, because it is impossible to ensure that the grinding force applied to both end faces is completely uniform, it is very easy to cause uneven grinding, end face tilting, or even damage to the spring.

[0004] Therefore, there is an urgent need for an automatic grinding machine to solve the above-mentioned technical problems. Utility Model Content

[0005] The purpose of this invention is to solve the problems in the background art and provide an automatic grinding machine.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: An automatic grinding machine includes a frame, a feeding mechanism, a front face grinding mechanism, a rear face grinding mechanism, a front face detection mechanism, a rear face detection mechanism, and a clamping mechanism. The feeding mechanism is mounted on the frame and extends through the frame. The front face grinding mechanism and the rear face grinding mechanism are arranged on the left and right sides along the transmission direction of the feeding mechanism. The front face detection mechanism is located on the side of the front face grinding mechanism facing the feeding mechanism, and the rear face detection mechanism is located on the side of the rear face grinding mechanism facing the feeding mechanism. The clamping mechanism is located between the frame and the feeding mechanism.

[0007] Preferably, both the front-end face grinding mechanism and the rear-end face grinding mechanism include a belt grinder and a housing. The housing surrounds the belt grinder body and is fixedly connected to the frame. A grinding cavity is provided inside the housing, with the cavity opening facing the feeding mechanism. The belt grinder is located inside the grinding cavity and includes a drive wheel, a driven wheel, an abrasive belt, and a worktable. The rotation shafts of the drive wheel and the driven wheel are fixed to the worktable, and the abrasive belt surrounds the drive wheel and the driven wheel. Compared with other grinding machines, the belt grinder has higher working efficiency, better processing quality, and lower operating costs, and features a fully enclosed design. The enclosed casing isolates the grinding machine from the outside world, ensuring production safety while isolating dust and noise generated during grinding. By setting the grinding cavity, the grinding working surface can be moved away from the feeding mechanism to a certain extent, greatly reducing the adverse effects of dust and electric sparks generated during grinding on the long springs and the feeding mechanism, avoiding scratches and contamination of the long springs, and extending the service life of the overall equipment. The rotation shafts of the drive wheel and the driven wheel are vertically fixed on the worktable, so that the working surface of the abrasive belt faces the feeding mechanism vertically, and its length direction is perpendicular to the conveying direction of the feeding mechanism, enabling multiple long springs to be ground at one time, thus improving production efficiency.

[0008] Preferably, both the front-end face detection mechanism and the rear-end face detection mechanism include a camera and a light source. The camera and the light source are respectively mounted on the housing of the front-end face grinding mechanism and the rear-end face grinding mechanism. The camera and the light source are located on one side of the cavity opening, and their height is parallel to the apex of the feeding mechanism. After the long spring finishes grinding, it continues to be conveyed forward by the feeding mechanism. When the long spring leaves the cavity opening, its just-processed end face enters the shooting range of the camera. The camera captures an image of the currently ground end face at this time, and the internal algorithm automatically calculates whether it is qualified. This non-contact measurement not only does not affect the rhythmic flow of production, but also fundamentally eliminates the errors caused by manual measurement, obtaining objective, reliable, and traceable measurement results. The light source not only provides good shooting conditions for the camera, but also allows the operator to observe the internal processing of the equipment at any time.

[0009] Preferably, both the front-end face inspection mechanism and the rear-end face inspection mechanism include a display screen, which is mounted on the frame. The display screen is located on the side facing the operator and displays the images captured by the camera and the corresponding analysis results in real time. The long spring that passes the inspection is smoothly conveyed forward, while the end face that fails the inspection is marked with a red warning. This incorporates quality inspection into the production process, greatly improving overall production efficiency and final product quality.

[0010] Preferably, the housing is provided with a maintenance door, and the maintenance door is provided with an interlocking device electrically connected to the belt grinder. When the maintenance door is opened, the belt grinder automatically stops operating. The interlocking device includes a limit switch fixedly installed on the maintenance door, connected in series to the control circuit of the belt grinder. A metal protrusion is provided on the inner side of the maintenance door corresponding to the position of the limit switch. When the maintenance door is closed, the metal protrusion on the inner side of the door presses down the telescopic probe of the limit switch, the internal contacts of the switch close, the circuit is connected, and the equipment operates normally. When the maintenance door is opened, the metal protrusion moves away, the telescopic probe pops up, the internal contacts of the switch open, and the control circuit of the belt grinder is immediately cut off, and the belt grinder stops operating. This ensures that the equipment cannot be powered on when the maintenance door is open, fundamentally eliminating the risk of injury caused by live work or accidental start-up and shutdown of the equipment during maintenance or inspection.

[0011] Preferably, the feeding mechanism includes a closed chain and several chain plates uniformly fixed on the chain. Several brackets are arranged parallel to each other on the top surface of the chain plates along their length direction, and the brackets are evenly distributed. The closed chain moves in a cycle to achieve fully automatic feeding. Long springs are placed in the brackets and fed to the front face grinding mechanism and the rear face grinding mechanism along with the closed chain. The chain adopts an intermittent step-feed mode, which transports several long springs in batches to the grinding cavity of the belt grinder. After processing, the feeding mechanism starts again and feeds forward in steps with the spacing between individual long springs until the cumulative number of long springs in a single batch is completed. Then it stops, so that the next batch of unprocessed long springs arrives in the grinding cavity, realizing the batch synchronous processing of long springs and significantly improving the output per unit time.

[0012] Preferably, the bracket is a V-shaped limiting groove, and the angle range of the V-shaped angle of the bracket is 80° to 100°. The V-shaped limiting groove enables the long spring to automatically center and maintain the stability of the axial direction during the conveying process. Moreover, the V-shaped angle better adapts to long springs of different diameters. The V-shaped angle of 80° to 100° provides the optimal balance between containment and stability. It can effectively constrain the axial position of long springs of different diameters, ensure the perpendicularity of the grinding end face to the axis, and avoid jamming caused by too small an angle or reduced centering caused by too large an angle. This reduces the accuracy requirements of the feeding mechanism and improves the reliability of automated production.

[0013] Preferably, the clamping mechanism includes two guide rails located at the top of the frame and a slider located within the guide rails. The bottom of the slider is provided with a pushing device and a pressing device, which are slidably connected to the guide rails. The ends of the guide rails point to the cavities of the front face grinding mechanism and the rear face grinding mechanism, respectively. The sliding direction of the guide rails is perpendicular to the conveying direction of the feeding mechanism. When the feeding mechanism conveys the long spring to the grinding station, the guide rails corresponding to the front face grinding mechanism and the rear face grinding mechanism allow the pushing device to accurately push the long spring to the working surface of the grinding machine. After grinding, the long spring is pushed away, achieving full automation of the long spring positioning, clamping, and conveying process, significantly improving production efficiency.

[0014] Preferably, the pushing device includes a connecting rod, a connecting plate, and pushers. The top of the connecting rod is fixedly connected to the slider, and the bottom of the connecting rod is provided with a connecting plate. The connecting plate is provided with several pushers that extend downward into the bracket. When a pushing action is required, the slider slides in the guide rail, causing the connecting rod and the connecting plate to move synchronously. The pushers then simultaneously contact multiple long springs and apply a uniform pushing force, pushing the multiple long springs into the grinding cavity at once and synchronously. Through the integrated design of the multiple pushers, the synchronous one-time pushing of multiple long springs is achieved, making the displacement of each long spring consistent during the pushing process, significantly improving production efficiency and greatly enhancing machining accuracy.

[0015] Preferably, the clamping device includes an electric lifting rod and a pressure block. The top of the electric lifting rod is fixedly connected to the slider, and the pressure block is located at the output end of the electric lifting rod. When a clamping action is required, the electric lifting rod moves downward, driving the pressure block to press down synchronously, pressing multiple long springs synchronously within the bracket, ensuring that multiple long springs perform grinding operations simultaneously and stably. An electric lifting push plate is provided inside the pressure block. After the grinding operation is completed, the electric lifting rod drives the pressure block to rise, releasing the clamping force. At the same time, the electric lifting push plate descends, extending into the gaps of the long springs. Subsequently, the electric lifting rod slides within the guide rail, pushing the processed long springs away from the grinding cavity, allowing the long springs to continue to be conveyed forward with the feeding mechanism, completely within the bracket. By synchronously clamping multiple long springs at multiple points, synchronous and uniform clamping of multiple long springs is achieved, ensuring stable positioning during processing, significantly improving production efficiency while greatly enhancing processing accuracy and surface quality.

[0016] In summary, this utility model has the following beneficial effects: 1. The automatic grinding machine described in this utility model addresses the issue that vertical grinding machines are prone to bending and deformation of long springs during processing. By adopting a horizontal feeding method, the long spring is supported by a feeding bracket throughout the entire process, ensuring its stability during processing. This method decomposes the difficult-to-achieve simultaneous grinding of both end faces into two grinding stations, front and rear, which sequentially process the two end faces of the long spring, providing high-quality and stable processing conditions for each end face. Front and rear detection mechanisms are set up to monitor the grinding quality of the end faces in real time, allowing operators to adjust the processing sequence of the long springs based on the grinding results. This solves the problems of existing grinding methods being unable to accommodate excessively long springs, easily causing bending and deformation of long springs, and difficulty in ensuring end face quality, significantly improving the final product quality. 2. The automatic grinding machine described in this utility model is equipped with a clamping mechanism that can accurately push and stably clamp multiple long springs at one time in the grinding station, realizing the synchronous processing of multiple long springs. Through the integrated pushing device and the multi-point synchronous clamping device, it is ensured that all long springs have completely uniform positioning on the clamping datum during the processing, effectively reducing processing errors, ensuring the consistency of end face flatness, perpendicularity and total length of batch products, and significantly improving product quality and production efficiency. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the main structure of this utility model; Figure 2 This is a simplified schematic diagram of the front-end detection mechanism of this utility model; Figure 3 This is a simplified schematic diagram of the rear end face detection mechanism of this utility model; Figure 4 This is a front view schematic diagram of the main structure of this utility model; Figure 5 This is a simplified schematic diagram of the end face grinding mechanism of this utility model; Figure 6 This is a simplified schematic diagram of the structure of the belt grinding machine of this utility model; Figure 7 This is a side view schematic diagram of the main structure of this utility model; In the diagram, 1-frame, 2-feeding mechanism, 21-chain, 22-chain plate, 23-bracket, 3-front face grinding mechanism, 4-rear face grinding mechanism, 5-front face inspection mechanism, 6-rear face inspection mechanism, 7-clamping mechanism, 71-guide rail, 72-pushing device, 721-connecting rod, 722-connecting plate, 723-push claw, 73-pressing device, 731-electric lifting rod, 732-pressure block, 74-slider, 8-belt grinder, 81-machine housing, 82-grinding cavity, 821-cavity opening, 83-drive wheel, 84-driven wheel, 85-sand belt, 86-worktable, 87-inspection door, 9-camera, 91-light source, 92-display screen. Detailed Implementation

[0018] The present invention will be further described in detail below with reference to the accompanying drawings.

[0019] Example

[0020] according to Figures 1-4 As shown, an automatic grinding machine includes a frame 1, a feeding mechanism 2, a front face grinding mechanism 3, a rear face grinding mechanism 4, a front face detection mechanism 5, a rear face detection mechanism 6, and a clamping mechanism 7. The feeding mechanism 2 is mounted on the frame 1 and passes through the frame 1. The front face grinding mechanism 3 and the rear face grinding mechanism 4 are arranged on the left and right sides along the transmission direction of the feeding mechanism 2. The front face detection mechanism 5 is located on the side of the front face grinding mechanism 3 facing the feeding mechanism 2, and the rear face detection mechanism 6 is located on the side of the rear face grinding mechanism 4 facing the feeding mechanism 2. The clamping mechanism 7 is located between the frame 1 and the feeding mechanism 2.

[0021] according to Figure 5 , Figure 6As shown, both the front face grinding mechanism 3 and the rear face grinding mechanism 4 include a belt grinder 8 and a housing 81. The housing 81 surrounds the body of the belt grinder 8 and is fixedly connected to the frame 1. A grinding chamber 82 is provided inside the housing 81, with the opening 821 of the grinding chamber 82 facing the feeding mechanism 2. The belt grinder 8 is located inside the grinding chamber 82. The belt grinder 8 includes a drive wheel 83, a driven wheel 84, a sanding belt 85, and a worktable 86. The rotation shafts of the drive wheel 83 and the driven wheel 84 are fixed on the worktable 86, and the sanding belt 85 surrounds the drive wheel 83 and the driven wheel 84. Compared with other grinding machines, the belt grinder 8 has higher working efficiency. To improve efficiency, enhance processing quality, and reduce operating costs, a fully enclosed housing 81 isolates the grinding machine from the outside environment, ensuring production safety while isolating dust and noise generated during grinding. By setting up a grinding cavity 82, the grinding working surface can be moved away from the feeding mechanism 2 to a certain extent, greatly reducing the adverse effects of dust and electric sparks generated during grinding on the long springs and the feeding mechanism 2. The rotation shafts of the drive wheel 83 and the driven wheel 84 are vertically fixed on the worktable, so that the working surface of the abrasive belt 85 faces the feeding mechanism 2 vertically, and its length direction is perpendicular to the conveying direction of the feeding mechanism 2, enabling multiple long springs to be ground at once.

[0022] according to Figure 5 As shown, both the front face inspection mechanism 5 and the rear face inspection mechanism 6 include a camera 9 and a light source 91. The camera 9 and the light source 91 are respectively mounted on the housing 81 of the front face grinding mechanism 3 and the rear face grinding mechanism 4. The camera 9 and the light source 91 are located on one side of the cavity 821, and the height of the camera 9 and the light source 91 is parallel to the apex of the feeding mechanism 2. After the long spring finishes grinding, it continues to be conveyed forward with the feeding mechanism 2. When the long spring leaves the cavity 821, the end face that has just been processed enters the shooting range of the camera 9. The camera 9 captures the image of the end face being ground at this time, and the internal algorithm automatically calculates whether it is qualified. The light source 91 not only provides good shooting conditions for the camera 9, but also allows the operator to observe the internal processing of the equipment at any time.

[0023] according to Figure 2 As shown, both the front-end inspection mechanism 5 and the rear-end inspection mechanism 6 include a display screen 92, which is mounted on the frame 1. The display screen 92 is located on the side facing the operator and displays the images collected by the camera 9 and the corresponding analysis results in real time. The long spring that passes the inspection is smoothly conveyed forward, and the end face that fails the inspection is marked with a red warning.

[0024] according to Figure 4As shown, a maintenance door 87 is provided on the housing 80. An interlocking device is provided on the maintenance door 87 and electrically connected to the belt grinder 8. When the maintenance door 87 is opened, the belt grinder 8 automatically stops operating. The interlocking device includes a limit switch fixedly installed on the maintenance door 87, which is connected in series to the control circuit of the belt grinder 8. A metal protrusion is provided on the inner side of the maintenance door 87 corresponding to the position of the limit switch. When the maintenance door 87 is closed, the metal protrusion on the inner side of the door presses down the telescopic probe of the limit switch, the internal contacts of the switch close, the circuit is connected, and the equipment operates normally. When the maintenance door 87 is opened, the metal protrusion moves away, the telescopic probe pops up, the internal contacts of the switch open, and the control circuit of the belt grinder 8 is immediately cut off, and the belt grinder 8 stops running, ensuring that the equipment cannot be powered on and operated when the maintenance door 87 is open.

[0025] according to Figure 7 As shown, the feeding mechanism 2 includes a closed chain 21 and several chain plates 22 evenly fixed on the chain 21. Several brackets 23 are arranged parallel to the top surface of the chain plates 22 along their length direction. The brackets 23 are evenly arranged. The closed chain 21 moves in a cycle. The long springs are placed in the brackets 23 and fed to the front face grinding mechanism 3 and the rear face grinding mechanism 4 along with the closed chain 21. The chain 21 adopts an intermittent step-by-step conveying mode, which conveys several long springs in batches to the grinding cavity 82 of the belt grinder 8. After processing, the feeding mechanism 2 starts again and feeds forward in steps with the spacing between individual long springs until the cumulative number of long springs in a single batch is completed. Then it stops, so that the next batch of unprocessed long springs arrives in the grinding cavity 82, realizing the batch synchronous processing of long springs.

[0026] according to Figure 7 As shown, bracket 23 is a V-shaped limiting groove, and the angle range of the V-shaped angle of bracket 23 is 80° to 100°. The V-shaped limiting groove enables the long spring to automatically center and maintain the stability of the axial direction during the conveying process. Moreover, the V-shaped angle is better adapted to long springs of different diameters. The V-shaped angle of 80° to 100° can effectively constrain the axial position of long springs of different diameters, and avoid jamming caused by too small an angle or decreased centering caused by too large an angle.

[0027] according to Figure 2 , Figure 4As shown, the clamping mechanism 7 includes two guide rails 71 located at the top of the frame 1 and a slider 74 located within the guide rails 71. The bottom of the slider 74 is provided with a pushing device 72 and a pressing device 73, which are slidably connected to the guide rails 71. The ends of the guide rails 71 point to the cavities 821 of the front face grinding mechanism 3 and the rear face grinding mechanism 4, respectively. The sliding direction of the guide rails 71 is perpendicular to the conveying direction of the feeding mechanism 2. When the feeding mechanism 2 conveys the long spring to the grinding station, the guide rails 71 corresponding to the front face grinding mechanism 3 and the rear face grinding mechanism 4 allow the pushing device 72 to accurately push the long spring to the working surface of the grinding machine. After grinding is completed, the long spring is pushed away.

[0028] according to Figure 4 As shown, the pushing device 72 includes a connecting rod 721, a connecting plate 722, and pushers 723. The top of the connecting rod 721 is fixedly connected to the slider 74, and the bottom of the connecting rod 721 is provided with the connecting plate 722. Several pushers 723 are provided on the connecting plate 722 that extend downward into the bracket 23. When the pushing action needs to be performed, the slider 74 slides in the guide rail 71, causing the connecting rod 721 and the connecting plate 722 to move synchronously. The pushers 723 then simultaneously contact multiple long springs and apply a uniform pushing force, pushing the multiple long springs into the grinding cavity 72 at once and synchronously, so that the displacement of each long spring is consistent during the pushing process.

[0029] according to Figure 2 As shown, the clamping device 73 includes an electric lifting rod 731 and a pressure block 732. The top of the electric lifting rod 731 is fixedly connected to the slider 74, and the pressure block 732 is located at the output end of the electric lifting rod 731. When a clamping action is required, the electric lifting rod 731 moves downward, driving the pressure block 732 to press down synchronously, pressing multiple long springs synchronously within the bracket 23, ensuring that multiple long springs perform grinding operations simultaneously and stably. An electric lifting push plate is provided inside the pressure block 732. After the grinding operation is completed, the electric lifting rod 731 drives the pressure block 732 to rise, releasing the clamping force. At the same time, the electric lifting push plate descends and extends into the gap of the long springs. Subsequently, the electric lifting rod 731 slides within the guide rail 71, pushing the processed long springs away from the grinding cavity 72, so that the long springs continue to be conveyed forward with the feeding mechanism 2 completely within the bracket 23.

[0030] Working principle: According to Figures 1 to 7As shown, the long springs to be processed are placed on the bracket 23 and fed to the front face grinding mechanism 3 by the feeding mechanism 2. When a batch of long springs reaches the front face grinding mechanism 3, the feeding mechanism 2 stops conveying, and the pushing device 72 starts, pushing the current batch of long springs into the grinding cavity 82 for grinding one end face. After the grinding operation is completed, the current batch of long springs is pushed out of the grinding cavity 82, and the feeding mechanism 2 restarts, continuing to feed forward in steps of individual long spring spacing. When an individual long spring moves forward one step distance, it enters the shooting range of the camera 9. The camera 9 captures the image of the processed end face and performs internal calculations. The system automatically calculates whether the springs are qualified and displays the results on the display screen 92. Unqualified springs are marked in red until all the long springs in the current batch leave the front face grinding mechanism 3 and the next batch of long springs arrives at the front face grinding mechanism 3. The next batch of long springs repeats the above steps. When the qualified long springs in the current batch arrive at the rear face grinding mechanism 4, the feeding mechanism 2 pauses and the pushing device 72 starts, pushing the long springs in the current batch into the grinding cavity 82 for grinding the other end face. After the grinding operation is completed, the above steps are repeated. Unqualified long springs return to the feeding end of the feeding mechanism 2 for secondary grinding.

[0031] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

Claims

1. An automatic grinding machine, characterized in that, The device includes a frame (1), a feeding mechanism (2), a front face grinding mechanism (3), a rear face grinding mechanism (4), a front face detection mechanism (5), a rear face detection mechanism (6), and a clamping mechanism (7). The feeding mechanism (2) is mounted on the frame (1) and passes through the frame (1). The front face grinding mechanism (3) and the rear face grinding mechanism (4) are arranged on the left and right sides along the transmission direction of the feeding mechanism (2). The front face detection mechanism (5) is located on the side of the front face grinding mechanism (3) facing the feeding mechanism (2). The rear face detection mechanism (6) is located on the side of the rear face grinding mechanism (4) facing the feeding mechanism (2). The clamping mechanism (7) is located between the frame (1) and the feeding mechanism (2).

2. The automatic grinding machine according to claim 1, characterized in that, The front face grinding mechanism (3) and the rear face grinding mechanism (4) both include a belt grinder (8) and a housing (81). The housing (81) surrounds the body of the belt grinder (8) and is fixedly connected to the frame (1). A grinding cavity (82) is provided inside the housing (81). The opening (821) of the grinding cavity (82) faces the feeding mechanism (2). The belt grinder (8) is located inside the grinding cavity (82). The belt grinder (8) includes a drive wheel (83), a driven wheel (84), a sanding belt (85), and a worktable (86). The rotation shafts of the drive wheel (83) and the driven wheel (84) are fixed on the worktable (86). The sanding belt (85) surrounds the drive wheel (83) and the driven wheel (84).

3. An automatic grinding machine according to claim 2, characterized in that, Both the front-end face detection mechanism (5) and the rear-end face detection mechanism (6) include a camera (9) and a light source (91). The camera (9) and the light source (91) are respectively mounted on the housing (81) of the front-end face grinding mechanism (3) and the rear-end face grinding mechanism (4). The camera (9) and the light source (91) are mounted on one side of the cavity (821). The height of the camera (9) and the light source (91) is parallel to the apex of the feeding mechanism (2).

4. An automatic grinding machine according to claim 3, characterized in that, Both the front-end detection mechanism (5) and the rear-end detection mechanism (6) include a display screen (92), which is mounted on the frame (1).

5. An automatic grinding machine according to claim 2, characterized in that, The housing (81) is provided with an inspection door (87), and the inspection door (87) is provided with an interlocking device that is electrically connected to the belt grinder (8). When the inspection door (87) is opened, the belt grinder (8) will automatically stop operating.

6. An automatic grinding machine according to claim 2, characterized in that, The feeding mechanism (2) includes a closed chain (21) and several chain plates (22) evenly fixed on the chain (21). Several brackets (23) are arranged parallel to each other on the top surface of the chain plate (22) along its length direction. The brackets (23) are evenly arranged.

7. An automatic grinding machine according to claim 6, characterized in that, The bracket (23) is a V-shaped limiting groove, and the angle range of the V-shaped angle of the bracket is 80° to 100°.

8. An automatic grinding machine according to claim 6, characterized in that, The clamping mechanism (7) includes two guide rails (71) located at the top of the frame (1) and a slider (74) located in the guide rails (71). The bottom of the slider (74) is provided with a pushing device (72) and a pressing device (73) respectively, which are slidably connected to the guide rails (71). The ends of the guide rails (71) point to the cavities (821) of the front face grinding mechanism (3) and the rear face grinding mechanism (4) respectively. The sliding direction of the guide rails (71) is perpendicular to the conveying direction of the feeding mechanism (2).

9. An automatic grinding machine according to claim 8, characterized in that, The pushing device (72) includes a connecting rod (721), a connecting plate (722), and push claws (723). The top of the connecting rod (721) is fixedly connected to the slider (74), and the bottom of the connecting rod (721) is provided with a connecting plate (722). The connecting plate (722) is provided with a plurality of push claws (723) that extend downward into the bracket (23).

10. An automatic grinding machine according to claim 8, characterized in that, The pressing device (73) includes an electric lifting rod (731) and a pressing block (732). The top of the electric lifting rod (731) is fixedly connected to the slider (74), and the pressing block (732) is located at the output end of the electric lifting rod (731).

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