Full-automatic production device for agricultural machine pulley production

Abstract

The application relates to the technical field of belt pulley processing, and particularly discloses a full-automatic production device for agricultural machine belt pulley production. The device comprises a machine tool, an electric sliding rail arranged on the machine tool, an electric sliding plate arranged on the machine tool through the electric sliding rail, a fixed frame arranged on the electric sliding plate, two rotating rollers rotatably connected in the fixed frame and driven through a belt, a motor fixedly connected to the fixed frame, an output shaft of the motor fixedly connected to one rotating roller, and an installation shell fixedly connected to the other rotating roller. Three sliding plates are limitingly and slidably connected to the installation shell, a connecting block is limitingly and slidably connected to the sliding plate, and a clamping block is limitingly and slidably connected to the connecting block. The belt transmission between the two rotating rollers reduces the influence of vibration of a milling cutter on the output shaft of the motor during work, prevents the output shaft of the motor from deforming, and guarantees the stability of the milling cutter during work.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of belt pulley processing, and discloses a full-automatic production device for agricultural machine belt pulley production. BACKGROUND

[0002] The agricultural machine belt pulley is a key component for power transmission in agricultural machinery, is mainly connected with an engine or other power sources through a belt, and is used for realizing power transmission and speed adjustment. The existing belt pulley production process usually comprises the following steps: material preparation, rough machining, heat treatment (if necessary), finish machining (keyway and V-shaped groove machining), surface treatment and quality inspection, wherein the V-shaped groove machining is one of the key steps, and a milling machine is usually used for machining through a special V-shaped groove milling cutter.

[0003] However, in the actual machining process, vibration is generated when the milling cutter cuts at a high rotating speed, the vibration is transmitted to the output shaft of the motor, the output shaft of the motor is deformed after long-time use of the milling machine, the position and angle of the milling cutter are changed, the size precision of the V-shaped groove of the belt pulley is affected, the vibration of the milling cutter is generated during rotation of the milling cutter due to the deformation of the output shaft of the motor, the stability of the milling cutter during machining is affected, the surface roughness of the V-shaped groove of the belt pulley is increased, and finally the friction between the belt and the belt pulley and the service life are affected. SUMMARY

[0004] In view of the problem that the vibration of the milling cutter during cutting acts on the output shaft of the motor for a long time and causes the deformation of the output shaft of the motor, the application provides a full-automatic production device for agricultural machine belt pulley production.

[0005] The technical implementation scheme of the application is as follows: a full-automatic production device for agricultural machine belt pulley production, comprising: a machine tool, wherein an electric sliding rail is arranged on the machine tool, the machine tool is provided with an electric sliding plate through the electric sliding rail, a fixed frame is mounted on the electric sliding plate, two rotating rollers are rotationally connected in the fixed frame, and the two rotating rollers are driven through a belt; a motor is fixedly connected to the fixed frame, the output shaft of the motor is fixedly connected to one rotating roller, and the other rotating roller is fixedly connected with a mounting shell; the vibration of the milling cutter during working is reduced through the transmission of the two rotating rollers and the belt; three sliding plates are limitingly and slidably connected to the mounting shell, the sliding plates are limitingly and slidably connected with connecting blocks, and the connecting blocks are limitingly and slidably connected with clamping blocks; a fixing mechanism is arranged on the mounting shell and used for locking the clamped milling cutter; three protection mechanisms are arranged in the corresponding connecting blocks and used for detecting whether the milling cutter is damaged.

[0006] As the preferred application, the fixing mechanism comprises: a rotating shell, which is screw-connected to the mounting shell, and is provided with three cavities; support blocks are arranged in the cavities of the rotating shell; the mounting shell is slidingly connected with three sliding columns, which are in contact with adjacent support blocks and sliding plates; the sliding plates are fixedly connected with the mounting shell by first tension springs; a rotating rod is screw-connected to the rotating shell, and is provided at one end with a connecting plate, which is slidingly connected with a clamping block; the clamping block is provided with an inclined surface, which is used for limiting the rotating shell.

[0007] As the preferred application, the distance of movement of the support blocks in the cavities of the rotating shell is equal to the thickness of the sliding plates.

[0008] As the preferred application, the screw-connection parts of the mounting shell and the rotating shell are respectively provided with screw threads and screw grooves; the length of the screw groove on the inner side of the rotating shell is greater than the length of the screw thread on the mounting shell.

[0009] As the preferred application, the protection mechanism comprises: a first telescopic rod, which is installed in the connecting block and is in contact with the clamping block; the first telescopic rod is controlled to retract by the movement of the clamping block; a first limiting pin is slidingly connected in the connecting block and is fixedly connected with the connecting block by a first spring; the clamping block is provided with a blind hole; the first limiting pin limits the clamping block by inserting into the blind hole of the clamping block, so as to limit the initial force when the clamping block moves; a moving assembly is arranged on the sliding plate, which is used to actively control the retreat of the milling cutter when it is damaged.

[0010] As the preferred application, the moving assembly comprises: a second telescopic rod, which is fixedly connected with the sliding plate; the telescopic end of the second telescopic rod is fixedly connected with the connecting block by a second tension spring; the second telescopic rod is communicated with a liquid guide pipe; the liquid guide pipe is communicated with the first telescopic rod; the first telescopic rod, the second telescopic rod and the liquid guide pipe are all filled with hydraulic oil; a second limiting pin is slidingly connected in the sliding plate and is fixedly connected with the sliding plate by a second spring; the connecting block is provided with a blind hole; the second limiting pin limits the connecting block by inserting into the blind hole of the connecting block, so as to limit the initial force when the connecting block moves.

[0011] As the preferred application, the moving assembly further comprises: a fixed plate, which is fixedly connected with the mounting shell; the fixed plate is provided with an inclined surface, which is used to extrude the connecting block to reset its movement.

[0012] As the preferred of the present application, further comprising: an auxiliary switching mechanism arranged in the mounting shell for actively removing the damaged milling cutter, the auxiliary switching mechanism comprising: a fixed block fixedly connected in the mounting shell, the fixed block being slidingly connected with a supporting slide plate, and a third spring being fixedly connected between the supporting slide plate and the fixed block; a sliding bent rod slidingly connected with the mounting shell, a fourth spring being fixedly connected between the sliding bent rod and the mounting shell, the sliding bent rod being in contact with the supporting slide plate, and the contact surface between the sliding bent rod and the supporting slide plate being an inclined surface for defining the initial position of the supporting slide plate; a sliding ring slidingly connected with the rotating shell, and a limiting bent rod slidingly connected with the sliding ring, the limiting bent rod being provided with an inclined surface for pushing the sliding bent rod to move; and a loosening assembly arranged in the fixed frame for releasing the clamping of the milling cutter.

[0013] As the preferred of the present application, the loosening assembly comprises: an electric push rod fixedly connected with the fixed frame, the telescopic end of the electric push rod being slidingly connected with the sliding ring through a connecting branch plate; three fixed rods each being mounted on the sliding ring, one end of each of the fixed rods being provided with an inclined surface, the rotating shell being slidingly connected with the supporting block, a fifth spring being fixedly connected between the supporting block and the rotating shell, the rotating shell being slidingly connected with three limiting plates, the limiting plates limiting the supporting block for relatively fixing the rotating shell and the supporting block, a third tension spring being fixedly connected between the limiting plates and the rotating shell, the rotating shell being provided with a rectangular hole, and the inclined surface of the fixed rod releasing the limiting of the supporting block by extruding the rectangular hole of the rotating shell.

[0014] As the preferred of the present application, the distance between the fixed rods and the limiting plates is less than the moving distance of the sliding ring pushed by the limiting bent rod to the sliding bent rod for releasing the fixing of the milling cutter and then ejecting.

[0015] Compared with the prior art, the present application has the following advantages: 1. The present application drives the milling cutter through the belt transmission between the two rotating rollers, so that the milling cutter is not directly connected with the motor output shaft, the transmission path of the vibration during the working of the milling cutter is blocked, the influence of the vibration during the working of the milling cutter on the motor output shaft is reduced, the deformation of the output shaft of the motor is prevented, and the stability during the processing of the milling cutter is ensured.

[0016] 2. The present application fixes the rotating shell through the fixed mechanism clamping block, and combines the threaded connection between the rotating shell and the mounting shell, so that the fixing state of the milling cutter is more stable, the vibration during the working of the milling cutter is reduced, and the milling cutter can more accurately complete the processing of the pulley according to the predetermined track.

[0017] 3、The first limiting pin in the protection mechanism limits the connecting block, the connecting block is driven to move by the second telescopic rod, the device timely releases the contact between the milling cutter and the pulley when the milling cutter is damaged, the integrity of the pulley machining surface is ensured, and subsequent processing of the pulley is facilitated.

[0018] 4、The supporting slide in the auxiliary switching mechanism pushes the milling cutter, and the limiting plate releases the limiting of the supporting block, so that the fixed state of the milling cutter is quickly released and the milling cutter is ejected from the installation shell, the time for replacing the milling cutter is shortened, and the efficiency of continuous production of the pulley is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a three-dimensional structure schematic diagram of the application;

[0020] Figure 2 It is a three-dimensional structure schematic diagram of the parts at the fixed frame and the motor of the application;

[0021] Figure 3 It is a three-dimensional structure schematic diagram of the parts at the fixed frame and the rotating roller of the application;

[0022] Figure 4 It is a three-dimensional structure schematic diagram of the parts at the installation shell and the sliding plate of the application;

[0023] Figure 5 It is a three-dimensional structure schematic diagram of the parts at the sliding plate and the connecting block of the application;

[0024] Figure 6 It is a three-dimensional structure schematic diagram of the parts at the sliding plate and the sliding column of the application;

[0025] Figure 7 It is a sectional view of the stuck state of the rotating shell of the application;

[0026] Figure 8 It is a sectional view of the connecting relationship between the rotating rod and the clamping block of the application;

[0027] Figure 9 It is a three-dimensional structure schematic diagram of the parts at the first limiting pin and the second limiting pin of the application;

[0028] Figure 10 It is a three-dimensional structure schematic diagram of the parts at the first telescopic rod and the second telescopic rod of the application;

[0029] Figure 11 It is a three-dimensional structure schematic diagram of the parts at the fixed rod and the limiting plate of the application.

[0030] The figure label name: 1-machine tool, 2-electric slide, 3-fixed frame, 4-rotary roller, 5-motor, 6-mounting shell, 7-sliding plate, 8-connection block, 9-clamping block, 201-rotary shell, 202-supporting block, 203-sliding column, 204-rotating rod, 205-clamping block, 301-first telescopic rod, 302-first limit pin, 401-second telescopic rod, 402-liquid guide pipe, 403-second limit pin, 501-fixed plate, 601-fixed block, 602-supporting slide plate, 603-sliding bent rod, 604-sliding ring, 605-limiting bent rod, 701-electric push rod, 702-fixed rod, 703-limiting plate. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present application will be described below in conjunction with the accompanying drawings Figure 1 The accompanying drawings Figure 11 The technical solutions in the embodiments of the present application will be described below in conjunction with the accompanying drawings

[0032] In the prior milling machine, the milling cutter will vibrate during the cutting of the pulley at high speed. The vibration of the milling cutter will be continuously transmitted to the transmission shaft of the transmission mechanism connected with the motor output shaft during the working process. After the milling machine is used for a period of time, the transmission shaft will be deformed, so that the position and angle of the milling cutter change, affecting the stability of the milling cutter during processing and increasing the surface roughness of the V-shaped groove of the pulley produced by the milling machine.

[0033] A full-automatic production device for agricultural machinery pulley production, please refer to the accompanying drawings Figure 1 The accompanying drawings Figure 6 As shown in the drawings, it comprises: a machine tool 1, an electric slide rail is arranged on the machine tool 1, the machine tool 1 is provided with an electric slide 2 through the electric slide rail, a fixed frame 3 is installed on the electric slide 2, two rotary rollers 4 are rotatably connected in the fixed frame 3, and the two rotary rollers 4 are driven by a belt; a motor 5 is fixedly connected to the fixed frame 3, the output shaft of the motor 5 is fixedly connected to one side of the rotary roller 4, and the other side of the rotary roller 4 is fixedly connected with a mounting shell 6, which is driven by the two rotary rollers 4 and the belt to reduce the vibration of the milling cutter during working; three sliding plates 7 are limitingly and slidingly connected to the mounting shell 6, the sliding plate 7 is limitingly and slidingly connected with a connecting block 8, and the connecting block 8 is limitingly and slidingly connected with a clamping block 9; a fixing mechanism is arranged on the mounting shell 6, which is used for locking the clamped milling cutter; three protection mechanisms are arranged in the corresponding connecting blocks 8, which are used for detecting whether the milling cutter is damaged.

[0034] In the above solution, the aim is to solve the problem of continuous vibration generated during milling cutter cutting acting on the motor output shaft, leading to deformation of the motor output shaft. The machine tool 1 is equipped with a control panel, and contains a control mechanism and a moving mechanism. The control mechanism within the machine tool 1 is used to clamp the pulley and rotate it at a constant speed. Combined with the rotation of the milling cutter, an annular V-groove is machined on the side wall of the pulley. The moving mechanism assists the electric slide plate 2 in changing the position of the milling cutter. The control mechanism, moving mechanism, electric slide plate 2, and motor 5 are all electrically connected to the control panel. The connecting block 8 is a splicing part. Three clamping blocks 9 together complete the clamping and fixing of the milling cutter. The contact surface between the clamping block 9 and the milling cutter is rough to prevent relative sliding between the clamping block 9 and the milling cutter. The directional descriptions in the following embodiments are all based on the appendix. 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 surfaces of the three sliding plates 7 are all inclined surfaces. Taking the upper sliding plate 7 as an example, the inclined surface of the sliding plate 7 tilts from top to bottom and to the right. The lower surface of the clamping block 9 is arc-shaped, and the arc-shaped surface fully fits the side of the milling cutter. The power is transmitted to the output shaft of the motor 5 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 vibration when the milling cutter is working, reducing the impact of milling cutter vibration on the motor output shaft, and ensuring the stability of the milling cutter processing state in this device.

[0035] Workflow: When using this device to produce pulleys, the robotic arm installs the heat-treated pulley onto the control mechanism of machine tool 1. The operator then installs the milling cutter on the mounting housing 6 and pushes three sliding plates 7 closer together via a fixing mechanism. The sliding plates 7 slide through the connecting block 8, causing the clamping block 9 to contact the milling cutter. The three clamping blocks 9 together clamp and fix the milling cutter, completing the initial preparation work. The control panel then activates the control mechanism, moving mechanism, electric slide plate 2, and motor 5. The control mechanism drives the pulley to rotate at a constant speed, facilitating the subsequent machining of the annular V-groove by the milling cutter. After motor 5 starts, its output shaft drives the mounting housing 6 to rotate at high speed via the rotating roller 4 and the pulley. The mounting housing 6, through the sliding plates 7, connecting block 8, clamping block 9, and protection mechanism, drives the milling cutter to rotate synchronously. The moving mechanism and electric slide plate 2 together change the position of the milling cutter, gradually bringing it closer to the pulley to be machined. Then, the milling cutter, combined with the pulley's self-rotation, gradually cuts the pulley, gradually completing the machining of the V-groove on the pulley's side wall.

[0036] In the process of milling cutter cutting pulley, if the blade of the milling cutter is broken, the resistance of the milling cutter cutting pulley increases, at this time the reaction force of the milling cutter cutting is through the protection mechanism to make three clamping blocks 9 and the milling cutter rotate relative to the connecting block 8, the protection mechanism drives the connecting block 8, the clamping block 9 and the milling cutter to move right relative to the sliding plate 7, the milling cutter loses the contact with the pulley, at this time the operator closes the control panel to control the control mechanism, the moving mechanism, the electric sliding plate 2 and the motor 5, then the operator manually releases the fixing of the fixing mechanism, controls the fixing mechanism and the sliding plate 7 to move to reset, the protection mechanism makes the connecting block 8 and the clamping block 9 to move to reset, replaces a new milling cutter, repeats the above installation operation of the milling cutter, continues to process the pulley, when the device is used, the operator manually releases the fixing of the fixing mechanism, removes the milling cutter, by which all parts return to the initial position.

[0037] Please refer to the attached drawings Figure 3 -attached drawings Figure 8 As shown in the drawings, the fixing mechanism comprises: a rotating shell 201, which is threadedly connected to the mounting shell 6, three cavities are arranged on the rotating shell 201, support blocks 202 are arranged in the cavities of the rotating shell 201, three sliding columns 203 are slidingly connected to the mounting shell 6, the sliding columns 203 are in contact with the adjacent support blocks 202 and the adjacent sliding plates 7, and the first tension spring is fixed between the sliding plates 7 and the mounting shell 6; a rotating rod 204 is threadedly connected to the rotating shell 201, one end of the rotating rod 204 is provided with a connecting plate, the rotating rod 204 is slidingly connected with a clamping block 205 through the connecting plate, the clamping block 205 is provided with an inclined surface, the inclined surface of the clamping block 205 is used for limiting the rotating shell 201, the moving distance of the support blocks 202 in the cavities of the rotating shell 201 is equal to the thickness of the sliding plates 7, 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 surface of the rotating shell 201 is greater than the length of the threaded portion on the mounting shell 6.

[0038] In the above scheme, the purpose is to solve the problem that vibration is generated when the cutter cuts the pulley during high-speed rotation, affecting the precision of the cutter processing and the accuracy of the moving track; the distance that the rotating shell 201 moves on the threaded part of the installation shell 6 is less than the thickness of the sliding plate 7, for keeping the sliding column 203 always extruding and fixing the sliding plate 7, and then fixing the cutter through the three clamping blocks 9, when the clamping blocks 9 fix the cutter, the first tension spring connected with the sliding plate 7 is in a tensile state, the inclined surface of the triangular block of the clamping block 205 is inclined from top to bottom to left, the rotating shell 201 is provided with an inclined groove, the triangular block of the clamping block 205 is inserted into the inclined groove of the rotating shell 201, and the clamping block 205 extrudes the rotating shell 201 and the installation shell 6 at the same time, locking the position of the rotating shell 201, through the threaded connection between the rotating shell 201 and the installation shell 6, and the operation of clamping the rotating shell 201 by the clamping block 205, the position of the sliding plate 7 on the installation shell 6 is locked, the vibration generated when the cutter cuts the pulley is reduced, the stability of the cutter is increased, the cutter can more accurately complete the processing of the pulley according to the predetermined track, and the dimensional deviation and shape error are reduced.

[0039] Work flow: during the process that the operator installs the cutter, the operator first puts the cutter into the installation shell 6, and then rotates the rotating shell 201, the rotating shell 201 moves to left through the threaded part on the installation shell 6, the rotating shell 201 pushes the sliding column 203 to move to left through the supporting block 202, the three sliding columns 203 extrude the inclined surface of the three sliding plates 7 at the same time, the sliding plate 7 drives the connecting block 8 and the clamping block 9 to fix the cutter, when the rotating shell 201 rotates to the position that it cannot continue to rotate, the operator rotates the rotating rod 204, the rotating rod 204 drives the clamping block 205 to move to left, the clamping block 205 is inserted into the groove of the rotating shell 201 and is close to the installation shell 6, the clamping block 205 relatively slides with the connecting plate at one end of the rotating rod 204, when the rotating rod 204 cannot continue to rotate, the clamping block 205 extrudes and fixes the installation shell 6, and clamps the rotating shell 201, the rotating shell 201 locks the position of the three sliding plates 7 through the three sliding columns 203 at the same time, the purpose of reducing the vibration generated when the cutter cuts the pulley is achieved, the cutter can more stably cut the pulley, the above-mentioned processing operation of the pulley is repeatedly performed, when the processing of the pulley is completed or the cutter is damaged, the above-mentioned closing operation of the related parts at the motor 5 is repeated, the operator reversely rotates the rotating rod 204, the rotating rod 204 drives the clamping block 205 to move out of the groove of the rotating shell 201 through the connecting plate, when the rotating rod 204 returns to the initial position, the operator reversely rotates the rotating shell 201, the rotating shell 201 moves to right, the sliding plate 7 drives the connecting block 8 and the clamping block 9 to return to the initial position under the action of the pulling force of the first tension spring connected with the sliding plate 7, the inclined surface of the sliding plate 7 pushes the sliding column 203 to move and reset, at this time, all the parts return to the initial position, finally the operator uninstalls the cutter.

[0040] Please refer to the attached Figure 5 , attached Figure 6 , attachedFigure 9 and attached Figure 10 As shown, the protection mechanism includes: a first telescopic rod 301, installed inside the connecting block 8, with the telescopic end of the first telescopic rod 301 contacting the clamping block 9, and the retraction of the telescopic end of the first telescopic rod 301 controlled by the movement of the clamping block 9; a first limiting pin 302, slidably connected inside the connecting block 8, with a first spring fixed between the first limiting pin 302 and the connecting block 8, and a blind hole provided on the clamping block 9, with the first limiting pin 302 limiting the clamping block 9 by inserting into the blind hole, thereby limiting the initial force when the clamping block 9 moves; and a moving component, disposed on the sliding plate 7, used to actively control the retraction of the milling cutter when it is damaged, the moving component including: a second telescopic rod 401, fixed to the sliding plate 7, with the telescopic end of the second telescopic rod 401 connected to the sliding plate 7. The second extension spring is fixedly connected to the connecting block 8. The second telescopic rod 401 is connected to the liquid guide tube 402, which is connected to the first telescopic rod 301. Hydraulic oil is filled in the first telescopic rod 301, the second telescopic rod 401, and the liquid guide tube 402. The second limiting pin 403 is slidably connected to the sliding plate 7. A second spring is fixed between the second limiting pin 403 and the sliding plate 7. The connecting block 8 is provided with a blind hole. The second limiting pin 403 limits the connecting block 8 by inserting into the blind hole of the connecting block 8, which is used to limit the initial force when the connecting block 8 moves. The moving component also includes: a fixing plate 501, which 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 make it move and reset.

[0041] In the above scheme, the purpose is to solve the problem that if the milling cutter continues to process the pulley after being damaged during processing, it will damage the pulley and cause the pulley to 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 seals and slides 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 first limit pin 302 has a semicircular head at one end close to the clamping block 9, the second limit pin 403 has a semicircular head at one end close to the connecting block 8, the first limit pin 302 limits the clamping block 9 through the semicircular head, the second limit pin 403 limits the connecting block 8 through the semicircular head, and the resistance of the first limit pin 302 to limit the clamping block 9 is greater than the force of the reaction force of the milling cutter acting on the clamping block 9 when cutting, so that the connecting block 8 and the clamping block 9 are relatively fixed when the milling cutter works at high speed, and only when the milling cutter is damaged, the reaction force of the milling cutter causes the connecting block 8 and the clamping block 9 to move relatively, the inclined surface on the lower side of the fixed plate 501 is inclined to the right from top to bottom, and when the connecting block 8 is reset by the sliding plate 7, 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, accurately judging whether the milling cutter is damaged 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, achieving the purpose of protecting the pulley, facilitating the subsequent replacement of the milling cutter to process the unprocessed pulley, and ensuring the efficiency of the device in processing the pulley.

[0042] Workflow: In the process of milling cutter cutting the pulley, if the pulley is damaged, the resistance of the pulley to the rotation of the milling cutter increases, the force of the milling cutter driving the clamping block 9 to rotate is greater than the resistance of the first limiting pin 302 limiting the clamping block 9, the blind hole of the clamping block 9 extrudes the semicircular head of the first limiting pin 302, the first limiting pin 302 moves into the connecting block 8 and compresses the connected first spring, the first limiting pin 302 releases the limiting of the clamping block 9, 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 retracting end of the first telescopic rod 301 to retract, the hydraulic oil in the first telescopic rod 301 enters the second telescopic rod 401 through the liquid guide pipe 402, the retracting end of the second telescopic rod 401 retracts, and the second tension spring connected to the retracting end of the second telescopic rod 401 stretches, when the tension of the second tension spring connected to the retracting end of the second telescopic rod 401 is greater than the resistance of the second limiting pin 403 limiting the connecting block 8, the retracting end of the second telescopic rod 401 drives the connecting block 8 to move to the right through the second tension spring, the second limiting pin 403 moves into the sliding plate 7, the second limiting pin 403 compresses the connected second spring, and the second limiting pin 403 releases the limiting of the connecting block 8. The second tension spring connected to the retracting end of the second telescopic rod 401 retracts and resets, the milling cutter loses contact with the pulley, achieving the purpose of protecting the pulley, facilitating subsequent milling cutter replacement and continuing to process the pulley, and then the operator repeats the above-mentioned closing operation of the related parts at the motor 5 and repeats the above-mentioned milling cutter replacement operation.

[0043] When the milling cutter is damaged, the sliding plate 7 moves and resets under the action of the tension of the connected first tension spring, 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 extrudes the connecting block 8, 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 inserts into the blind hole of the connecting block 8 under the action of the elastic force of the connected second spring, the connecting block 8 is repositioned, the connecting block 8 drives the retracting end of the second telescopic rod 401 to extend again through the second tension spring, the hydraulic oil in the liquid guide pipe 402 flows in the opposite direction, the retracting end of the first telescopic rod 301 extends and drives 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 restore the initial position, when the first limiting pin 302 is aligned with the blind hole of the clamping block 9, the first limiting pin 302 moves and inserts into the blind hole of the clamping block 9 under the action of the elastic force of the connected first spring, the clamping block 9 is repositioned, and thus all parts in the device restore the initial position, the milling cutter is replaced, the above-mentioned milling cutter replacement operation and pulley processing operation are repeated, and the pulley is continuously processed.

[0044] In the above embodiment, the connection relationship between the support block 202 and the rotating shell 201 can be considered as fixed connection, but in the following embodiment, the connection relationship between the support block 202 and the rotating shell 201 is sliding connection.

[0045] Embodiment 2: on the basis of embodiment 1, please refer to the attached Figure 3 - the attached Figure 5 , the attached Figure 7 and the attached Figure 11 It also includes: auxiliary switching mechanism, set in the installation shell 6, for the initiative to remove the damaged milling cutter, auxiliary switching mechanism includes: fixed block 601, fixedly connected in the installation shell 6, the fixed block 601 slidingly connected with the support slide plate 602, the support slide plate 602 and the fixed block 601 between the fixedly connected with the third spring; sliding curved rod 603, slidingly connected to the installation shell 6, the sliding curved rod 603 and the installation shell 6 between the fixedly connected with the fourth spring, the sliding curved rod 603 and the support slide plate 602 contact, the contact surface of the sliding curved rod 603 and the support slide plate 602 is inclined surface, for limiting the initial position of the support slide plate 602; sliding ring 604, slidingly connected to the rotating shell 201, the sliding ring 604 slidingly connected with the limit curved rod 605, the limit curved rod 605 is provided with an inclined surface, the inclined surface of the limit curved rod 605 for pushing the sliding curved rod 603 to move; loose assembly, set in the fixed frame 3, for releasing the clamping of the milling cutter, loose assembly includes: electric push rod 701, fixedly connected to the fixed frame 3, the telescopic end of the electric push rod 701 is slidingly connected with the sliding ring 604 through the connecting branch; three fixed rods 702, are installed on the sliding ring 604, one end of the fixed rod 702 is provided with an inclined surface, the rotating shell 201 and the support block 202 are slidingly connected, the fifth spring is fixedly connected between the support block 202 and the rotating shell 201, the rotating shell 201 is slidingly connected with three limit plates 703, the limit plate 703 limits the support block 202, for relatively fixing the rotating shell 201 and the support block 202, the third tension spring is fixedly connected between the limit plate 703 and the rotating shell 201, the rotating shell 201 is provided with a rectangular hole, the inclined surface of the fixed rod 702 releases the limiting of the support block 202 by extruding the rectangular hole of the rotating shell 201, the distance between the fixed rod 702 and the limit plate 703 is less than the distance between the sliding ring 604 and the sliding curved rod 603, for releasing the fixation of the milling cutter first and then popping out.

[0046] In the above scheme, the purpose is to solve the problem that the steps of replacing the milling cutter after the milling cutter is damaged are complicated, the downtime of the device is long, and the efficiency of the device for continuously processing the pulley is reduced; the elastic coefficient of the fifth spring between the support block 202 and the rotating shell 201 is less than the elastic coefficient of the first tension spring between the sliding plate 7 and the installation shell 6, for smoothly pushing the sliding column 203 into the cavity of the rotating shell 201 by the sliding plate 7, the elastic coefficient of the third spring connected with the support slide plate 602 and the elastic coefficient of the fourth spring connected with the sliding curved rod 603 are equal, for limiting the position of the support slide plate 602 through the inclined surface of the sliding curved rod 603, the attached Figure 5The middle support slide plate 602 and the sliding bent rod 603 are in a balanced state, and there is no extrusion force between the support slide plate 602 and the milling cutter, and the sliding bent rod 603 is not in contact with the rotating shell 201. During the movement of the sliding ring 604, the inclined surface of the limiting bent rod 605 inclines from top to bottom to the right. The fixed rod 702 first contacts the limiting plate 703, and then the limiting bent rod 605 contacts the sliding bent rod 603, so that the milling cutter first contacts the fixing and then moves out of the mounting shell 6. The inclined surface of the fixed rod 702 is located at the left end of the fixed rod 702, and the inclined surface of the left end of the fixed rod 702 inclines from top to bottom to the left. Initially, the limiting plate 703 limits the support block 202, and the support block 202 is fixed relative to the rotating shell 201. Through the movement of the sliding ring 604, the limiting of the support block 202 and the support slide plate 602 is released, so that the milling cutter is quickly released and ejected from the device, the time for replacing the milling cutter is shortened, and the efficiency of the device for processing the pulley is increased.

[0047] Workflow: When the milling cutter is damaged during operation, the operator repeats the above-mentioned operation of moving the milling cutter to the right. The milling cutter pushes the support slide plate 602 to move to the right, the support slide plate 602 compresses the connected third spring, the sliding bent rod 603 moves upward under the elastic force of the connected fourth spring, the sliding bent rod 603 keeps in contact with the support slide plate 602, and then the operator controls the panel to close the electric slide plate 2, the motor 5, the control system and the moving system during the process of moving to the device, and starts the electric push rod 701. The telescopic end of the electric push rod 701 drives the sliding ring 604 to move to the left through the connecting support plate. The sliding ring 604 extrudes the edge of the rectangular hole of the limiting plate 703 through the inclined surface of the fixed rod 702, the limiting plate 703 moves upward and stretches the connected third tension spring, the limiting plate 703 releases the limiting of the support block 202, the sliding plate 7 moves to reset under the tension of the connected first tension spring, the connecting block 8 and the clamping block 9 are 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 fixing of the milling cutter is released.

[0048] When the milling cutter is fixed, the sliding ring 604 pushes the sliding bent rod 603 to move downward through the inclined surface of the limiting bent rod 605, the sliding bent rod 603 moves to compress the connected fourth spring, at the same time, the sliding bent rod 603 loses the contact with the supporting slide plate 602, the supporting slide plate 602 moves left under the elastic force of the connected third spring and pops out the milling cutter from the installation shell 6, then the telescopic end of the electric push rod 701 is retracted and drives the sliding ring 604 to move right to reset, the sliding bent rod 603 moves upward under the elastic force of the connected fourth spring and pushes the supporting slide plate 602 to the initial position, the limiting bent rod 605 moves to reset, the limiting plate 703 is limited by the sliding column 203 and does not reset, when the operator replaces the milling cutter, only needs to insert the new milling cutter into the installation shell 6, the milling cutter stops after contacting with the supporting slide plate 602, the supporting slide plate 602 assists to complete the positioning of the milling cutter, then manually presses the three sliding plates 7 to move to reset, the supporting block 202 pushes the sliding column 203 to move to reset under the elastic force of the connected fifth spring, the limiting plate 703 restores the state of limiting the supporting block 202 under the pulling force of the connected third tension spring, by then, all parts are reset to the initial position, the replacement of the milling cutter is completed.

[0049] The basic principle, main features and advantages of the present application are shown and described above, the skilled in the art should understand that the present application is not limited by the above-mentioned embodiments, the above-mentioned embodiments and the description in the specification are only to illustrate the principle of the present application, under the premise of not departing from the spirit and scope of the present application, the present application can have various changes and improvements, these changes and improvements all fall into the scope of the present application which is claimed.

Claims

1. A fully automatic production device for producing agricultural machinery pulleys, characterized in that, include: Machine tool (1), the machine tool (1) is provided with an electric slide rail, the machine tool (1) is provided with an electric slide plate (2) through the electric slide rail, a fixed frame (3) is installed on the electric slide plate (2), and two rotating rollers (4) are rotatably connected inside the fixed frame (3), and the two rotating rollers (4) are driven by a belt. The 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). The two rotating rollers (4) and the belt are used for transmission to reduce the vibration of the milling cutter during operation. Three sliding plates (7) are all slidably connected to the mounting shell (6), and the sliding plates (7) are slidably connected to the connecting blocks (8), and the connecting blocks (8) are slidably connected to the clamping blocks (9). The sliding plate (7) and the connecting block (8) slide only in the left and right directions, and the clamping block (9) rotates only in the circumferential direction relative to the connecting block (8). All the clamping blocks (9) are used together to clamp and fix the milling cutter. A fixing mechanism is provided in the mounting shell (6) for locking the clamped milling cutter; Three protection mechanisms are respectively installed in the corresponding connecting blocks (8) to detect whether the milling cutter is damaged; The protection mechanism includes: The first telescopic rod (301) is installed inside the connecting block (8). The telescopic end of the first telescopic rod (301) is in contact with the clamping block (9). The retraction of the telescopic end of the first telescopic rod (301) is controlled by the movement of the clamping block (9). The first limiting pin (302) is slidably connected to the connecting block (8). A first spring is fixed between the first limiting pin (302) and the connecting block (8). A blind hole is provided on the clamping block (9). The first limiting pin (302) limits the clamping block (9) by inserting into the blind hole of the clamping block (9) to limit the initial force when the clamping block (9) moves. A movable component, disposed on the sliding plate (7), is used to actively control the retraction of the milling cutter when it is damaged; The moving component includes: The second telescopic rod (401) is fixedly connected to the sliding plate (7). The telescopic end of the second telescopic rod (401) is fixedly connected to the connecting block (8) through the second tension spring. The second telescopic rod (401) is connected to a liquid guide pipe (402). The liquid guide pipe (402) is connected to the first telescopic rod (301). Hydraulic oil is filled in the first telescopic rod (301), the second telescopic rod (401) and the liquid guide pipe (402). The second limiting pin (403) is slidably connected to the sliding plate (7). A second spring is fixed 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 inserting into the blind hole of the connecting block (8) to limit the initial force when the connecting block (8) moves.

2. The fully automatic production device for agricultural machinery pulley production according to claim 1, characterized in that, The fixing mechanism includes: A rotating shell (201) is threadedly connected to the mounting shell (6). The rotating shell (201) has three cavities. A support block (202) is provided in the cavity of the rotating shell (201). The mounting shell (6) is slidably connected to three sliding columns (203). The sliding columns (203) are in contact with the adjacent support block (202) and the adjacent sliding plate (7). A first tension spring is fixed between the sliding plate (7) and the mounting shell (6). A rotating rod (204) is threadedly connected to the rotating shell (201). One end of the rotating rod (204) is provided with a connecting plate. The rotating rod (204) is slidably connected to a locking block (205) through the connecting plate. The locking block (205) is provided with an inclined surface. The inclined surface of the locking block (205) is used to limit the rotation 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 within 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 mounting shell (6) and the rotating shell (201) are respectively provided with a threaded part and a threaded groove at the threaded connection. The length of the threaded groove on the inner side of the rotating shell (201) is greater than the length of the threaded part on the mounting shell (6).

5. A fully automatic production device for producing agricultural machinery pulleys according to claim 4, characterized in that, The mobile component also includes: A fixing plate (501) is fixed inside 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 press the connecting block (8) to move and reset it.

6. A fully automatic production device for agricultural machinery pulley production according to claim 5, characterized in that it further includes... include: An auxiliary switching mechanism, disposed within the mounting housing (6), is used to actively remove the damaged milling cutter. The auxiliary switching mechanism includes: A fixing block (601) is fixedly connected to the mounting shell (6), and a supporting slide plate (602) is slidably connected to the fixing block (601). A third spring is fixedly connected between the supporting slide plate (602) and the fixing block (601). A sliding bend rod (603) is slidably connected to the mounting shell (6). A fourth spring is fixed between the sliding bend rod (603) and the mounting shell (6). The sliding bend rod (603) contacts the support slide plate (602). The contact surface between the sliding bend rod (603) and the support slide plate (602) is an inclined surface, which is used to define the initial position of the support slide plate (602). A sliding ring (604) is slidably connected to the rotating shell (201). The sliding ring (604) is slidably connected to a limiting bent rod (605). The limiting bent rod (605) is provided with an inclined surface. The inclined surface of the limiting bent rod (605) is used to push the sliding bent rod (603) to move. The loosening component is located in the fixed frame (3) to release the clamping of the milling cutter.

7. A fully automatic production device for producing agricultural machinery pulleys according to claim 6, characterized in that, The release component includes: An electric push rod (701) 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 fixing rods (702) are 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 fixed between the support block (202) and the rotating shell (201). Three limiting plates (703) are slidably connected to the rotating shell (201). The limiting plates (703) limit the support block (202) to fix the rotating shell (201) and the support block (202) relatively. A third tension spring is fixed between the limiting plates (703) and the rotating shell (201). The rotating shell (201) is provided with a rectangular hole. The inclined surface of the fixing rod (702) releases the limiting of the support block (202) by pressing the rectangular hole of the rotating shell (201).

8. A fully automatic production device for producing agricultural machinery pulleys according to claim 7, characterized in that, The distance between the fixed rod (702) and the limiting plate (703) is less than the distance between the sliding ring (604) and the sliding bent rod (603), so that the milling cutter is released from its fixed position before popping out.

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