Full-automatic production device for agricultural machine belt pulley production

Abstract

The invention relates to the technical field of belt pulley machining, and particularly discloses a full-automatic production device for agricultural machine belt pulley production. Comprising a machine tool, an electric sliding rail is arranged on the machine tool, an electric sliding plate is arranged on the machine tool through the electric sliding rail, a fixing frame is installed on the electric sliding plate, two rotating rollers are rotationally connected into the fixing frame, and the two rotating rollers are driven through a belt; the motor is fixedly connected to the fixing frame, an output shaft of the motor is fixedly connected with the rotating roller on one side, and the rotating roller on the other side is fixedly connected with a mounting shell; and the three sliding plates are all connected to the mounting shell in a limiting and sliding mode, the sliding plates are connected with connecting blocks in a limiting and sliding mode, and the connecting blocks are connected with clamping blocks in a limiting and sliding mode. Through belt transmission between the two rotating rollers, the influence of vibration on the output shaft of the motor when the milling cutter works is reduced, the output shaft of the motor is prevented from deforming, and the stability of the milling cutter during machining is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of pulley processing, and in particular discloses a fully automatic production device for producing agricultural machinery pulleys. Background Art

[0002] Agricultural machinery pulleys are key components used to transmit power in agricultural machinery. They are mainly connected to the engine or other power sources through belts to achieve power transmission and speed regulation. The existing pulley production process usually includes material preparation, rough processing, heat treatment (if necessary), fine processing (keyway and V-groove processing), surface treatment and quality inspection. Among them, V-groove processing is one of the key steps, and is usually processed by milling machines using special V-groove milling cutters.

[0003] However, in the actual processing process, the milling cutter will generate vibration when cutting at high speed. This vibration will be transmitted to the output shaft of the motor. After long-term use of the milling machine, the output shaft of the motor will be deformed, thereby changing the position and angle of the milling cutter, affecting the dimensional accuracy of the V-groove of the pulley. At the same time, the deformation of the output shaft of the motor will cause the milling cutter to vibrate during rotation, affecting the stability of the milling cutter during processing, increasing the surface roughness of the V-groove of the pulley, and ultimately affecting the friction between the belt and the pulley and the service life. Summary of the Invention

[0004] In order to solve the problem that the vibration of the milling cutter during cutting acts on the output shaft of the motor for a long time, causing the output shaft of the motor to deform, the present invention provides a fully automatic production device for producing agricultural machinery pulleys.

[0005] The technical implementation scheme of the present invention is: a fully automatic production device for producing agricultural machinery pulleys, comprising: a machine tool, wherein the machine tool is provided with an electric slide rail, the machine tool is provided with an electric skateboard through the electric slide rail, a fixed frame is installed on the electric skateboard, two rotating rollers are rotatably connected in the fixed frame, and the two rotating rollers are driven by a belt; a motor is fixedly connected to the fixed frame, the output shaft of the motor is fixedly connected to the rotating roller on one side, and the rotating roller on the other side is fixedly connected to a mounting shell, and the transmission is carried out through the two rotating rollers and the belt to reduce the vibration of the milling cutter during operation; three sliding plates are all limitedly slidably connected to the mounting shell, the sliding plates are limitedly slidably connected to a connecting block, and the connecting block is limitedly slidably connected to a clamping block; a fixing mechanism is provided in the mounting shell, and is used to lock the clamped milling cutter; three protection mechanisms are respectively provided in the corresponding connecting blocks, and are used to detect whether the milling cutter is damaged.

[0006] As a preferred embodiment of the present invention, the fixing mechanism includes: a rotating shell, threadedly connected to the mounting shell, three cavities are provided on the rotating shell, support blocks are provided in the cavities of the rotating shell, three sliding columns are slidably connected to the mounting shell, the sliding columns are in contact with adjacent support blocks and adjacent sliding plates, and a first tension spring is fixed between the sliding plate and the mounting shell; a rotating rod, threadedly connected to the rotating shell, a connecting plate is provided at one end of the rotating rod, and the rotating rod is slidably connected to a card block through the connecting plate, and an inclined surface is provided on the card block, and the inclined surface of the card block is used to limit the rotating shell.

[0007] As a preferred embodiment of the present invention, the distance that the support block moves in the cavity of the rotating shell is equal to the thickness of the sliding plate.

[0008] As a preferred embodiment of the present invention, the threaded connection between the mounting shell and the rotating shell is respectively provided with a threaded portion and a thread groove, and the length of the thread groove on the inner side of the rotating shell is greater than the length of the threaded portion on the mounting shell.

[0009] As a preferred embodiment of the present invention, the protection mechanism includes: a first telescopic rod, which is installed in the connecting block, the telescopic end of the first telescopic rod is in contact with the clamping block, and the contraction of the telescopic end of the first telescopic rod is controlled by the movement of the clamping block; a first limit pin, which is slidably connected in the connecting block, and a first spring is fixed between the first limit pin and the connecting block, and a blind hole is provided on the clamping block, and the first limit pin limits the clamping block by being inserted into the blind hole of the clamping block, so as to limit the initial force when the clamping block moves; a moving component, which is provided on the sliding plate, and is used to actively control the retreat of the milling cutter when it is damaged.

[0010] As a preferred embodiment of the present invention, the moving assembly includes: a second telescopic rod, fixedly connected to the sliding plate, the telescopic end of the second telescopic rod is fixedly connected to the connecting block via a second tension spring, the second telescopic rod is connected to a liquid guide tube, the liquid guide tube is connected to the first telescopic rod, and the first telescopic rod, the second telescopic rod and the liquid guide tube are all filled with hydraulic oil; a second limit pin, slidably connected to the sliding plate, a second spring is fixed between the second limit pin and the sliding plate, a blind hole is provided on the connecting block, and the second limit pin limits the connecting block by being inserted into the blind hole of the connecting block, so as to limit the initial force when the connecting block moves.

[0011] As a preferred embodiment of the present invention, the moving assembly further comprises: a fixing plate fixedly connected in the mounting shell, the fixing plate being provided with an inclined surface, and the inclined surface of the fixing plate being used to squeeze the connecting block to move and reset it.

[0012] As a preferred embodiment of the present invention, it also includes: an auxiliary switching mechanism, which is arranged in the mounting shell and is used to actively remove the damaged milling cutter, and the auxiliary switching mechanism includes: a fixed block, which is fixed in the mounting shell, and the fixed block is slidably connected to a support slide, and a third spring is fixed between the support slide and the fixed block; a sliding bent rod, which is slidably connected to the mounting shell, and a fourth spring is fixed between the sliding bent rod and the mounting shell, and the sliding bent rod is in contact with the support slide, and the contact surface of the sliding bent rod with the support slide is an inclined surface, which is used to limit the initial position of the support slide; a sliding ring, which is slidably connected to the rotating shell, and the sliding ring is slidably connected to the limiting bent rod, and the limiting bent rod is provided with an inclined surface, and the inclined surface of the limiting bent rod is used to push the sliding bent rod to move; a release component, which is arranged on the fixed frame, and is used to release the clamping of the milling cutter.

[0013] As a preferred embodiment of the present invention, the loosening assembly includes: an electric push rod fixedly connected to the fixed frame, the telescopic end of the electric push rod being slidably connected to the sliding ring through a connecting support plate; three fixed rods, all of which are installed on the sliding ring, one end of the fixed rod is provided with an inclined surface, the rotating shell is slidably connected to the support block, a fifth spring is fixed between the support block and the rotating shell, three limit plates are slidably connected to the rotating shell, the limit plates limit the support block, and are used to make the rotating shell and the support block relatively fixed, a third tension spring is fixed between the limit plate and the rotating shell, the rotating shell is provided with a rectangular hole, and the inclined surface of the fixed rod releases the limit of the support block by squeezing the rectangular hole of the rotating shell.

[0014] As a preferred embodiment of the present invention, the distance between the fixing rod and the limiting plate is smaller than the moving distance of the sliding bent rod pushed by the sliding ring through the limiting bent rod, so as to release the fixation of the milling cutter before ejecting it.

[0015] Compared with the prior art, the present invention has the following advantages: 1. The present invention uses a belt transmission between two rotating rollers to prevent the milling cutter from being directly connected to the motor output shaft, thereby blocking the transmission path of the vibration of the milling cutter when it is working, reducing the impact of the vibration of the milling cutter when it is working on the motor output shaft, preventing the motor output shaft from deformation, and ensuring the stability of the milling cutter during processing.

[0016] 2. The present invention uses a fixing mechanism block to lock the rotating shell, combined with the threaded connection between the rotating shell and the mounting shell, to make the fixed state of the milling cutter more stable, reduce the vibration of the milling cutter during operation, and ensure that the milling cutter can complete the processing of the pulley more accurately according to the predetermined trajectory.

[0017] 3. The present invention limits the connecting block by the first limiting pin in the protection mechanism, and drives the connecting block to move in combination with the second telescopic rod, so that the device can promptly release the contact between the milling cutter and the pulley when the milling cutter is damaged, thereby ensuring the integrity of the pulley processing surface and facilitating subsequent processing of the pulley.

[0018] 4. The present invention pushes the milling cutter through the support slide in the auxiliary switching mechanism, and releases the limit on the support block in combination with the limit plate, thereby quickly releasing the fixed state of the milling cutter and popping the milling cutter out of the mounting shell, shortening the time for replacing the milling cutter and ensuring the efficiency of continuous production of the pulley. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of the three-dimensional structure of the fixing frame and motor parts of the present invention; Figure 3 It is a schematic diagram of the three-dimensional structure of the parts of the fixed frame and the rotating roller of the present invention; Figure 4 This is a schematic diagram of the three-dimensional structure of the parts of the mounting shell and the sliding plate of the present invention; Figure 5 It is a schematic diagram of the three-dimensional structure of the parts at the sliding plate and the connecting block of the present invention; Figure 6 It is a schematic diagram of the three-dimensional structure of the sliding plate and sliding column parts of the present invention; Figure 7 It is a cross-sectional view of the rotating shell of the present invention in a stuck state; Figure 8 It is a cross-sectional view of the connection relationship between the rotary rod and the clamping block of the present invention; Figure 9 It is a schematic diagram of the three-dimensional structure of the parts at the first limiting pin and the second limiting pin of the present invention; Figure 10 This is a schematic diagram of the three-dimensional structure of the parts at the first telescopic rod and the second telescopic rod of the present invention; Figure 11 It is a schematic diagram of the three-dimensional structure of the parts at the fixing rod and the limiting plate of the present invention.

[0020] The numbers in the figure are: 1-machine tool, 2-electric slide, 3-fixed frame, 4-rotating roller, 5-motor, 6-mounting shell, 7-sliding plate, 8-connecting block, 9-clamping block, 201-rotating shell, 202-support block, 203-sliding column, 204-rotating rod, 205-block, 301-first telescopic rod, 302-first limit pin, 401-second telescopic rod, 402-liquid guide tube, 403-second limit pin, 501-fixed plate, 601-fixed block, 602-support slide, 603-sliding bent rod, 604-sliding ring, 605-limiting bent rod, 701-electric push rod, 702-fixed rod, 703-limiting plate. DETAILED DESCRIPTION

[0021] The following is combined with Figure 1 -Attached Figure 11 The technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. All other embodiments derived by those skilled in the art based on the embodiments of the present invention without inventive effort shall fall within the scope of protection of the present invention.

[0022] Example 1: When the milling cutter on an existing milling machine cuts the pulley during high-speed rotation, the milling cutter will vibrate. The vibration of the milling cutter will continue to be transmitted to the transmission shaft of the transmission mechanism connected to the motor output shaft during operation. After the milling machine has been used for a period of time, the transmission shaft will be deformed, thereby changing the position and angle of the milling cutter, affecting the stability of the milling cutter during processing and increasing the surface roughness of the V-groove of the pulley produced by the milling machine.

[0023] A fully automatic production device for agricultural machinery pulley production, please refer to the attached Figure 1 -Attached Figure 6 As shown, it includes: a machine tool 1, an electric slide rail is provided on the machine tool 1, an electric skateboard 2 is provided on the machine tool 1 through the electric slide rail, a fixed frame 3 is installed on the electric skateboard 2, two rotating rollers 4 are rotatably connected in the fixed frame 3, and the two rotating rollers 4 are driven by a belt; a motor 5 is fixed to the fixed frame 3, the output shaft of the motor 5 is fixed to the rotating roller 4 on one side, and the rotating roller 4 on the other side is fixed to the mounting shell 6, which is driven by two rotating rollers 4 and a belt to reduce the vibration of the milling cutter during operation; three sliding plates 7 are all limitedly slidably connected to the mounting shell 6, the sliding plate 7 is limitedly slidably connected to the connecting block 8, and the connecting block 8 is limitedly slidably connected to the clamping block 9; a fixing mechanism is provided in the mounting shell 6, for locking the clamped milling cutter; three protection mechanisms are respectively provided in the corresponding connecting blocks 8, for detecting whether the milling cutter is damaged.

[0024] In the above scheme, the purpose is to solve the problem that the vibration generated by the milling cutter during cutting continuously acts on the motor output shaft, thereby causing the motor output shaft to deform; a control panel is provided on the machine tool 1, and a control mechanism and a moving mechanism are provided inside the machine tool 1. The control mechanism inside the machine tool 1 is used to clamp the pulley and rotate it at a uniform speed, and a ring-shaped V-shaped groove is processed on the side wall of the pulley in combination with the rotation of the milling cutter. The moving mechanism is used to assist the electric skateboard 2 to change the position of the milling cutter. The control mechanism, the moving mechanism, the electric skateboard 2 and the motor 5 are all electrically connected to the control panel. The connecting block 8 is a spliced ​​part. The three clamping blocks 9 jointly complete the clamping and fixing of the milling cutter. The contact surface between the clamping block 9 and the milling cutter is a rough surface, which is used to prevent the clamping block 9 and the milling cutter from sliding relative to each other. The direction description in the lower embodiment is based on the attached Figure 4 For example, the sliding plate 7 and the connecting block 8 only slide in the left and right directions, and the clamping block 9 only rotates circumferentially relative to the connecting block 8. The outer side surfaces of the three sliding plates 7 are all inclined surfaces. Taking the sliding plate 7 on the upper side as an example, the inclined surface of the sliding plate 7 is inclined to the right from top to bottom, and the lower side surface of the clamping block 9 is arc-shaped, and the arc-shaped surface is fully fitted with the side surface of the milling cutter. The power of the output shaft of the motor 5 is transmitted through the rotating roller 4 and the belt, so that the milling cutter is not directly connected to the output shaft of the motor 5, blocking the transmission path of the vibration of the milling cutter when working, reducing the influence of the milling cutter vibration on the motor output shaft, and ensuring the stability of the milling cutter processing state in this device.

[0025] Workflow: When using this device to produce pulleys, the robotic arm installs the heat-treated pulley on the control mechanism of the machine tool 1, and then the operator installs the milling cutter on the mounting shell 6, and pushes the three sliding plates 7 close to each other through the fixing mechanism, and slides through the connecting block 8 to make the clamping block 9 contact the milling cutter. The three clamping blocks 9 jointly clamp and fix the milling cutter, thus completing the initial preparation work of the device. Then the control panel starts the control mechanism, moving mechanism, electric skateboard 2 and motor 5. The control mechanism drives the pulley to rotate at a uniform speed, which is convenient for the subsequent milling cutter to process the annular V-groove. After the motor 5 is started, the output shaft of the motor 5 drives the mounting shell 6 to rotate at high speed through the rotating roller 4 and the pulley. The mounting shell 6 drives the milling cutter to rotate synchronously through the sliding plate 7, connecting block 8, clamping block 9 and protective mechanism. The moving mechanism and the electric skateboard 2 jointly change the position of the milling cutter, so that the milling cutter gradually approaches the position to be processed of the pulley. After that, the milling cutter gradually cuts the pulley in combination with the self-rotation of the pulley, and gradually completes the processing of the V-groove on the side wall of the pulley.

[0026] During the process of the milling cutter cutting the pulley, if the cutting edge of the milling cutter breaks, the resistance of the milling cutter to the pulley increases. At this time, the reaction force of the milling cutter cutting causes the three clamping blocks 9 and the milling cutter to rotate relative to the connecting block 8 through the protective mechanism. The protective mechanism drives the connecting block 8, the clamping block 9 and the milling cutter to move to the right relative to the sliding plate 7, and the milling cutter loses contact with the pulley. At this time, the operator turns off the control mechanism, the moving mechanism, the electric skateboard 2 and the motor 5 through the control panel. Then the operator manually releases the fixation of the fixing mechanism, controls the fixing mechanism and the sliding plate 7 to move and reset, and the protective mechanism causes the connecting block 8 and the clamping block 9 to move and reset. A new milling cutter is replaced, and the above-mentioned milling cutter installation operation is repeated to continue processing the pulley. When the use of this device is completed, the operator manually releases the fixation of the fixing mechanism and removes the milling cutter. At this point, all parts are restored to their initial positions.

[0027] Please refer to the attached Figure 3 -Attached Figure 8 As shown, the fixing mechanism includes: a rotating shell 201, which is threadedly connected to the mounting shell 6, and three cavities are provided on the rotating shell 201, and a support block 202 is provided in the cavity of the rotating shell 201, and the mounting shell 6 is slidably connected with three sliding columns 203, and the sliding columns 203 are in contact with adjacent support blocks 202 and adjacent sliding plates 7, and a first tension spring is fixed between the sliding plate 7 and the mounting shell 6; a rotating rod 204, which is threadedly connected to the rotating shell 201, and one end of the rotating rod 204 is provided with a connecting plate, and the rotating rod 204 is slidably connected to a clamping block 205 through the connecting plate, and an inclined surface is provided on the clamping block 205, and the inclined surface of the clamping block 205 is used to limit the rotating shell 201, and the distance moved by the support block 202 in the cavity of the rotating shell 201 is equal to the thickness of the sliding plate 7, and the threaded connection between the mounting shell 6 and the rotating shell 201 is respectively provided with a threaded portion and a thread groove, and the length of the thread groove on the inner side of the rotating shell 201 is greater than the length of the threaded portion on the mounting shell 6.

[0028] In the above scheme, it is intended to solve the problem that when the milling cutter cuts the pulley during high-speed rotation, vibration will be generated, which affects the accuracy of the milling cutter processing and the accuracy of the moving trajectory; the distance that the rotating shell 201 moves on the threaded portion of the mounting shell 6 is less than the thickness of the sliding plate 7, which is used to make the sliding column 203 always keep squeezing and fixing the sliding plate 7, and then fix the milling cutter through the three clamping blocks 9. When the clamping block 9 fixes the milling cutter, the first tension spring connected to the sliding plate 7 is in a stretched state, and the inclined surface of the triangular block of the clamping block 205 is tilted from top to bottom to the left, and the rotating shell An inclined groove is provided in 201, and the triangular block of the clamping block 205 is inserted into the inclined groove of the rotating shell 201, squeezing the rotating shell 201 and the mounting shell 6 at the same time, locking the position of the rotating shell 201, and through the threaded connection between the rotating shell 201 and the mounting shell 6, combined with the operation of locking the rotating shell 201 by the clamping block 205, the position of the sliding plate 7 on the mounting shell 6 is locked, reducing the vibration generated when the milling cutter cuts the pulley, increasing the stability of the milling cutter, and enabling the milling cutter to complete the processing of the pulley more accurately according to the predetermined trajectory, reducing dimensional deviation and shape error.

[0029] Working process: When the operator installs the milling cutter, the operator first puts the milling cutter into the installation shell 6, and then the operator rotates the rotating shell 201. The rotating shell 201 moves to the left through the threaded portion on the installation shell 6. The rotating shell 201 pushes the sliding column 203 to the left through the supporting block 202. The three sliding columns 203 squeeze the inclined surfaces of the three sliding plates 7 at the same time. The sliding plates 7 drive the connecting blocks 8 and the clamping blocks 9 to fix the milling cutter. When the rotating shell 201 rotates to the point where it can no longer rotate, the operator rotates the rotary rod 204. The rotary rod 204 drives the clamping block 205 to move to the left. The clamping block 205 is inserted into the groove of the rotating shell 201 and close to the installation shell 6. The clamping block 205 slides relative to the connecting plate at one end of the rotary rod 204. When the rotary rod 204 can no longer rotate, the clamping block 205 squeezes and fixes the installation shell 6, and the rotating shell 201 is stuck. The shell 201 locks the positions of the three sliding plates 7 at the same time through the three sliding posts 203, achieving the purpose of reducing the vibration generated when the milling cutter cuts the pulley, ensuring that the milling cutter cuts the pulley more stably, and repeats the above-mentioned pulley processing operation. When the pulley processing is completed or the milling cutter is damaged, the closing operation of the relevant parts at the motor 5 is repeated, and the operator rotates the rotary rod 204 in the opposite direction. The rotary rod 204 drives the clamping block 205 to move out of the groove of the rotating shell 201 through the connecting plate. When the rotary rod 204 returns to its initial position, the operator rotates the rotating shell 201 in the opposite direction, and the rotating shell 201 moves to the right. The sliding plate 7 drives the connecting block 8 and the clamping block 9 to return to their initial positions under the tension of the connected first tension spring. The inclined surface of the sliding plate 7 pushes the sliding post 203 to move and reset. At this point, all parts have returned to their initial positions, and the operator finally removes the milling cutter.

[0030] Please refer to the attached Figure 5 , Attachment Figure 6 , Attachment Figure 9 and attached Figure 10 As shown, the protection mechanism includes: a first telescopic rod 301, which is installed in the connecting block 8, and the telescopic end of the first telescopic rod 301 is in contact with the clamping block 9, and the contraction of the telescopic end of the first telescopic rod 301 is controlled by the movement of the clamping block 9; a first limit pin 302, which is slidably connected to the connecting block 8, and a first spring is fixed between the first limit pin 302 and the connecting block 8, and a blind hole is provided on the clamping block 9. The first limit pin 302 limits the clamping block 9 by inserting into the blind hole of the clamping block 9, so as to limit the initial force when the clamping block 9 moves; a moving component, which is provided on the sliding plate 7, and is used to actively control the retreat of the milling cutter when it is damaged. The moving component includes: a second telescopic rod 401, which is fixed to the sliding plate 7, and the telescopic end of the second telescopic rod 401 is passed through The second telescopic rod 401 is fixedly connected to the connecting block 8 through a second tension spring. The second telescopic rod 401 is connected to a liquid guide tube 402. The liquid guide tube 402 is connected to the first telescopic rod 301. The first telescopic rod 301, the second telescopic rod 401 and the liquid guide tube 402 are all filled with hydraulic oil; the second limit pin 403 is slidably connected to the sliding plate 7, and a second spring is fixed between the second limit pin 403 and the sliding plate 7. A blind hole is provided on the connecting block 8. The second limit pin 403 limits the connecting block 8 by inserting into the blind hole of the connecting block 8, so as to limit the initial force when the connecting block 8 moves. The moving component also includes: a fixed plate 501, which is fixed in the mounting shell 6. The fixed plate 501 is provided with an inclined surface. The inclined surface of the fixed plate 501 is used to squeeze the connecting block 8 to move it back to its original position.

[0031] In the above scheme, it is intended to solve the problem that if the milling cutter continues to process the pulley after it is damaged during the processing, the pulley will be damaged and the pulley will be scrapped; the first telescopic rod 301 and the second telescopic rod 401 are both composed of a sliding rod, a piston and a fixed cylinder (the sliding rod slides in a sealed manner in the fixed cylinder through the piston, similar to the structure of a syringe, and the telescopic end of the telescopic rod is the corresponding sliding rod), the end of the first limit pin 302 close to the clamping block 9 is a semicircular head, and the end of the second limit pin 403 close to the connecting block 8 is a semicircular head, the first limit pin 302 limits the clamping block 9 through the semicircular head, and the second limit pin 403 limits the connecting block 8 through the semicircular head, and the resistance of the first limit pin 302 to the clamping block 9 is greater than the reaction force acting on it when the milling cutter is cutting The force on the clamping block 9 makes the connecting block 8 and the clamping block 9 relatively fixed when the milling cutter works under high-speed rotation. Only when the milling cutter is damaged, the reaction of the milling cutter causes the connecting block 8 and the clamping block 9 to move relative to each other. Taking the fixed plate 501 on the upper side as an example, the inclined surface on the lower side of the fixed plate 501 tilts from top to bottom to the right. When the sliding plate 7 drives the connecting block 8 to reset, the inclined surface of the fixed plate 501 pushes the connecting block 8 to reset, ensuring that the device can continuously detect the milling cutter. Through the rotation of the clamping block 9 and the movement of the connecting block 8, combined with the limiting of the second limit pin 403 and the first limit pin 302, it is accurate to judge whether the milling cutter is damaged, thereby achieving the purpose of protecting the pulley, facilitating the subsequent replacement of the milling cutter to process the unfinished pulley, and ensuring the efficiency of the pulley processing of this device.

[0032] Working process: During the process of the milling cutter cutting the pulley, if the pulley is damaged, the resistance of the milling cutter to the pulley increases, and the force of the milling cutter to drive the clamping block 9 to rotate is greater than the resistance of the first limit pin 302 to limit the clamping block 9. The blind hole of the clamping block 9 squeezes the semicircular head of the first limit pin 302, and the first limit pin 302 moves into the connecting block 8 and compresses the connected first spring. The first limit pin 302 releases the limit of the clamping block 9, and the milling cutter drives the three clamping blocks 9 to rotate clockwise (from left to right) relative to the connecting block 8. The clamping block 9 pushes the telescopic end of the first telescopic rod 301 to retract, and the hydraulic oil in the first telescopic rod 301 enters the second telescopic rod 401 through the liquid guide tube 402. The telescopic end of the second telescopic rod 401 contracts, and the second telescopic rod 401 retracts. The second tension spring connected to the telescopic end 401 is stretched. When the tension of the second tension spring connected to the telescopic end of the second telescopic rod 401 is greater than the resistance of the second limit pin 403 limiting the connecting block 8, the telescopic end of the second telescopic rod 401 drives the connecting block 8 to move to the right through the second tension spring, and the second limit pin 403 moves into the sliding plate 7. The second limit pin 403 compresses the connected second spring, and the second limit pin 403 releases the limitation on the connecting block 8. The second tension spring connected to the telescopic end of the second telescopic rod 401 contracts and resets, and the milling cutter loses contact with the pulley, thereby achieving the purpose of protecting the pulley and facilitating the subsequent processing of the pulley after the milling cutter is replaced. Then the operator repeats the closing operation of the relevant parts of the above-mentioned motor 5 and repeats the above-mentioned milling cutter replacement operation.

[0033] When the milling cutter is damaged, the sliding plate 7 moves and resets under the tension of the connected first tension spring, and the sliding plate 7 drives the connecting block 8 and the clamping block 9 to move synchronously. The inclined surface of the fixed plate 501 squeezes the connecting block 8, and the connecting block 8 moves to the left to restore the initial position. When the second limiting pin 403 is aligned with the blind hole of the connecting block 8, the second limiting pin 403 moves and is inserted into the blind hole of the connecting block 8 under the elastic force of the connected second spring, and the connecting block 8 is re-limited. The connecting block 8 drives the telescopic end of the second telescopic rod 401 to extend again through the second tension spring, and the hydraulic oil in the guide tube 402 is In the reverse direction, the telescopic end of the first telescopic rod 301 extends out and pushes the clamping block 9 to rotate and reset. When the sliding plate 7 moves and resets, the connecting block 8 and the clamping block 9 both return to their initial positions. When the first limiting pin 302 is aligned with the blind hole of the clamping block 9, the first limiting pin 302 moves and is inserted into the blind hole of the clamping block 9 under the elastic force of the connected first spring, and the clamping block 9 is re-limited. At this point, all parts in the device return to their initial positions, and the milling cutter is replaced. The above-mentioned milling cutter replacement operation and pulley processing operation are repeated to continue processing the pulley.

[0034] In the above embodiment, the connection between the support block 202 and the rotating shell 201 can be regarded as a fixed connection. However, in the lower embodiment, the connection between the support block 202 and the rotating shell 201 is a sliding connection.

[0035] Example 2: Based on Example 1, please refer to the attached Figure 3 -Attached Figure 5 , Attachment Figure 7 and attached Figure 11 As shown, it also includes: an auxiliary switching mechanism, which is arranged in the mounting shell 6 and is used to actively remove the damaged milling cutter. The auxiliary switching mechanism includes: a fixed block 601, which is fixed in the mounting shell 6, and the fixed block 601 is slidably connected to the support slide 602, and a third spring is fixed between the support slide 602 and the fixed block 601; a sliding bent rod 603, which is slidably connected to the mounting shell 6, and a fourth spring is fixed between the sliding bent rod 603 and the mounting shell 6, and the sliding bent rod 603 contacts the support slide 602, and the contact surface of the sliding bent rod 603 with the support slide 602 is an inclined surface, which is used to limit the initial position of the support slide 602; a sliding ring 604, which is slidably connected to the rotating shell 201, and the sliding ring 604 is slidably connected to the limiting bent rod 605, and the limiting bent rod 605 is provided with an inclined surface, and the inclined surface of the limiting bent rod 605 is used to push the sliding bent rod 603 to move; a release component, which is arranged in the fixed frame 3, and is used to release the clamping of the milling cutter and release it. The assembly includes: an electric push rod 701, which is fixed to the fixed frame 3, and the telescopic end of the electric push rod 701 is slidably connected to the sliding ring 604 through a connecting support plate; three fixed rods 702, all of which are installed on the sliding ring 604, and one end of the fixed rod 702 is provided with an inclined surface, the rotating shell 201 is slidably connected to the support block 202, and a fifth spring is fixed between the support block 202 and the rotating shell 201, and the rotating shell 201 is slidably connected with three limit plates 703, the limit plate 703 limits the support block 202, which is used to make the rotating shell 201 and the support block 202 relatively fixed, and a third tension spring is fixed between the limit plate 703 and the rotating shell 201, and the rotating shell 201 is provided with a rectangular hole, and the inclined surface of the fixed rod 702 releases the limit of the support block 202 by squeezing the rectangular hole of the rotating shell 201, and the distance between the fixed rod 702 and the limit plate 703 is smaller than the distance between the sliding ring 604 and the sliding bent rod 603, which is used to release the fixation of the milling cutter first and then pop it out.

[0036] In the above scheme, it is intended to solve the problem that after the milling cutter is damaged, the steps for replacing the milling cutter are cumbersome, which causes the device to be shut down for a long time and reduces the efficiency of the device in continuously processing the pulley; the elastic coefficient of the fifth spring between the support block 202 and the rotating shell 201 is smaller than the elastic coefficient of the first tension spring between the sliding plate 7 and the mounting shell 6, which is used to enable the sliding column 203 to be smoothly pushed into the cavity of the rotating shell 201 by the sliding plate 7, and the elastic coefficient of the third spring connected to the supporting slide 602 is equal to the elastic coefficient of the fourth spring connected to the sliding bent rod 603, which is used to limit the position of the supporting slide 602 by the inclined surface of the sliding bent rod 603, Figure 5When the sliding ring 604 is moved, the limit of the support block 202 and the support slide 602 is released, so that the milling cutter is quickly released and ejected from the device, thereby shortening the time of replacing the milling cutter and increasing the efficiency of the device in processing the pulley.

[0037] Working process: When the milling cutter is damaged during operation, the operator repeats the above operation of moving the milling cutter to the right. The milling cutter pushes the supporting slide 602 to move to the right. The supporting slide 602 compresses the third spring connected thereto. The sliding bent rod 603 moves upward under the elastic force of the fourth spring connected thereto. The sliding bent rod 603 keeps in contact with the supporting slide 602. Then, when the operator walks towards the device, the control panel first turns off the electric slide 2, the motor 5, the control system and the moving system, and at the same time starts the electric push rod 701. The telescopic end of the electric push rod 701 is The sliding ring 604 is driven to move to the left by the connecting support plate, and the sliding ring 604 squeezes the edge of the rectangular hole of the limiting plate 703 through the inclined surface of the fixing rod 702. The limiting plate 703 moves upward and stretches the connected third tension spring. The limiting plate 703 releases the limit on the support block 202. The sliding plate 7 moves and resets under the tension of the connected first tension spring. The connecting block 8 and the clamping block 9 are both reset. The inclined surface of the sliding plate 7 pushes the support block 202 and the sliding column 203 into the cavity of the rotating shell 201. The support block 202 compresses the connected fifth spring, and the fixation of the milling cutter is released.

[0038] When the milling cutter is released, the sliding ring 604 pushes the sliding bent rod 603 downward through the inclined surface of the limiting bent rod 605, and the sliding bent rod 603 moves to compress the connected fourth spring. At the same time, the sliding bent rod 603 loses contact with the supporting slide 602, and the supporting slide 602 moves to the left under the elastic force of the connected third spring and pops the milling cutter out of the mounting shell 6. Then the telescopic end of the electric push rod 701 contracts and drives the sliding ring 604 to move right and reset. The sliding bent rod 603 moves upward under the elastic force of the connected fourth spring to push the supporting slide 602 to the initial position. The rod 605 moves to reset, and the limit plate 703 is restricted by the sliding column 203 and does not reset. When the operator replaces the milling cutter, he only needs to insert the new milling cutter into the mounting shell 6. The milling cutter stops after contacting the support slide 602. The support slide 602 assists in completing the positioning of the milling cutter. Then, the three sliding plates 7 are manually pressed to move and reset. The support block 202 pushes the sliding column 203 to move and reset under the elastic force of the connected fifth spring. The limit plate 703 restores the state of the limit support block 202 under the tension of the connected third tension spring. At this point, all parts are restored to their initial positions, and the replacement of the milling cutter is completed.

[0039] The basic principles, main features and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions in the specification are only for illustrating the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may be subject to various changes and improvements, and these changes and improvements shall fall within the scope of the invention claimed for protection.

Claims

1. A fully automatic production device for agricultural machinery pulley production, characterized in that: include: A machine tool (1), wherein the machine tool (1) is provided with an electric slide rail, the machine tool (1) is provided with an electric slide plate (2) via the electric slide rail, a fixed frame (3) is installed on the electric slide plate (2), two rotating rollers (4) are rotatably connected in the fixed frame (3), and the two rotating rollers (4) are driven by a belt; A motor (5) is fixedly connected to the fixed frame (3); an output shaft of the motor (5) is fixedly connected to the rotating roller (4) on one side; and a mounting shell (6) is fixedly connected to the rotating roller (4) on the other side. The transmission is performed through the two rotating rollers (4) and the belt to reduce vibration during the operation of the milling cutter. Three sliding plates (7) are all connected to the mounting shell (6) in a limited sliding manner, the sliding plates (7) are connected to a connecting block (8) in a limited sliding manner, and the connecting block (8) is connected to a clamping block (9) in a limited sliding manner; A fixing mechanism, provided on the mounting shell (6), for locking the clamped milling cutter; Three protection mechanisms are respectively arranged in the corresponding connecting blocks (8) and are used to detect whether the milling cutter is damaged.

2. A fully automatic production device for agricultural machinery pulley production according to claim 1, characterized in that: The fixing mechanism comprises: A rotating shell (201) is threadedly connected to the mounting shell (6), three cavities are provided on the rotating shell (201), support blocks (202) are provided in the cavities of the rotating shell (201), and three sliding columns (203) are slidably connected to the mounting shell (6), the sliding columns (203) are in contact with adjacent support blocks (202) and adjacent sliding plates (7), and a first tension spring is fixed between the sliding plate (7) and the mounting shell (6); A rotary rod (204) is threadedly connected to the rotating shell (201); a connecting plate is provided at one end of the rotary rod (204); the rotary rod (204) is slidably connected to a clamping block (205) via the connecting plate; an inclined surface is provided on the clamping block (205); and the inclined surface of the clamping block (205) is used to limit the rotating shell (201).

3. A fully automatic production device for agricultural machinery pulley production according to claim 2, characterized in that: The distance that the support block (202) moves in the cavity of the rotating shell (201) is equal to the thickness of the sliding plate (7).

4. A fully automatic production device for agricultural machinery pulley production according to claim 2, characterized in that: The threaded connection between the mounting shell (6) and the rotating shell (201) is respectively provided with a threaded portion and a threaded groove, and the length of the threaded groove on the inner side of the rotating shell (201) is greater than the length of the threaded portion on the mounting shell (6).

5. A fully automatic production device for agricultural machinery pulley production according to claim 2, characterized in that: The protection mechanism includes: A first telescopic rod (301) is installed in the connecting block (8), the telescopic end of the first telescopic rod (301) contacts the clamping block (9), and the contraction of the telescopic end of the first telescopic rod (301) is controlled by the movement of the clamping block (9); A first limiting pin (302) is slidably connected to the connecting block (8), a first spring is fixedly connected between the first limiting pin (302) and the connecting block (8), a blind hole is provided on the clamping block (9), and the first limiting pin (302) limits the clamping block (9) by being inserted into the blind hole of the clamping block (9), so as to limit the initial force when the clamping block (9) moves; A moving component is provided on the sliding plate (7) and is used to actively control the retreat of the milling cutter when it is damaged.

6. A fully automatic production device for agricultural machinery pulleys according to claim 5, characterized in that: The mobile component includes: a second telescopic rod (401) fixedly connected to the sliding plate (7); a telescopic end of the second telescopic rod (401) fixedly connected to the connecting block (8) via a second tension spring; the second telescopic rod (401) is connected to a liquid guide tube (402); the liquid guide tube (402) is connected to the first telescopic rod (301); the first telescopic rod (301), the second telescopic rod (401) and the liquid guide tube (402) are all filled with hydraulic oil; A second limiting pin (403) is slidably connected to the sliding plate (7); a second spring is fixedly connected between the second limiting pin (403) and the sliding plate (7); a blind hole is provided on the connecting block (8); the second limiting pin (403) limits the connecting block (8) by being inserted into the blind hole of the connecting block (8), so as to limit the initial force when the connecting block (8) moves.

7. A fully automatic production device for agricultural machinery pulleys according to claim 6, characterized in that: The mobile component also includes: A fixing plate (501) is fixedly connected to the mounting shell (6); the fixing plate (501) is provided with an inclined surface; the inclined surface of the fixing plate (501) is used to squeeze the connecting block (8) to move and reset it.

8. A fully automatic production device for agricultural machinery pulley production according to claim 7, characterized in that include: An auxiliary switching mechanism is provided in the mounting shell (6) and is used for actively removing a damaged milling cutter. The auxiliary switching mechanism comprises: A fixed block (601) is fixedly connected in the mounting shell (6); the fixed block (601) is slidably connected to a supporting slide plate (602); a third spring is fixedly connected between the supporting slide plate (602) and the fixed block (601); A sliding curved rod (603) is slidably connected to the mounting shell (6), a fourth spring is fixedly connected between the sliding curved rod (603) and the mounting shell (6), the sliding curved rod (603) contacts the supporting slide plate (602), and the contact surface of the sliding curved rod (603) with the supporting slide plate (602) is an inclined surface for limiting the initial position of the supporting slide plate (602); A sliding ring (604) is slidably connected to the rotating shell (201), and the sliding ring (604) is slidably connected to a limit bending rod (605), wherein the limit bending rod (605) is provided with an inclined surface, and the inclined surface of the limit bending rod (605) is used to push the sliding bending rod (603) to move; A loosening component is provided on the fixing frame (3) and is used for releasing the clamping of the milling cutter.

9. A fully automatic production device for agricultural machinery pulleys according to claim 8, characterized in that: The release assembly comprises: An electric push rod (701) is fixed to the fixed frame (3), and a telescopic end of the electric push rod (701) is slidably connected to the sliding ring (604) via a connecting support plate; Three fixing rods (702) are all installed on the sliding ring (604), one end of the fixing rod (702) is provided with an inclined surface, the rotating shell (201) is slidably connected to the support block (202), a fifth spring is fixedly connected between the support block (202) and the rotating shell (201), the rotating shell (201) is slidably connected to three limiting plates (703), the limiting plates (703) limit the support block (202) and are used to relatively fix the rotating shell (201) and the support block (202), a third tension spring is fixedly connected between the limiting plates (703) and the rotating shell (201), the rotating shell (201) is provided with a rectangular hole, and the inclined surface of the fixing rod (702) releases the limiting of the support block (202) by squeezing the rectangular hole of the rotating shell (201).

10. A fully automatic production device for agricultural machinery pulleys according to claim 9, characterized in that: The distance between the fixing rod (702) and the limiting plate (703) is smaller than the distance between the sliding ring (604) and the sliding curved rod (603), so as to release the fixation of the milling cutter before ejecting it.

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