A disc milling cutter convenient for quick tool change

Abstract

The present invention relates to the technical field of milling cutters, and specifically discloses a disc milling cutter that is convenient for quick tool change. It comprises a cutter disc, the cutter disc is fixedly connected with a cooling box evenly distributed in the circumference, the cooling boxes evenly distributed in the circumference are commonly fixedly connected with a fixing ring, the cooling box is slidably connected with a blocking block, the cutter disc is slidably connected with an arc-shaped sliding plate evenly distributed in the circumference, the arc-shaped sliding plate and the opposite sides of the blocking blocks in the same group are both rotatably connected with a rotating block, the rotating blocks in the same group are commonly rotatably connected with a disc clamping frame, the disc clamping frame is slidably connected with a fixing cylinder, the fixing cylinder is rotatably connected with a fixing frame, and a cutter head is installed on the fixing frame through bolts. The present invention controls the fixing cylinder to drive the cutter head to slide toward the center of the cutter disc when a cutter head is not working or damaged, so that the cutter head stops contacting with the workpiece, and does not affect the cutter heads in other positions from processing the workpiece, thereby avoiding delaying the normal processing progress.

Description

Technical Field

[0001] The invention relates to the technical field of milling cutters, and in particular discloses a disc milling cutter which is convenient for fast tool change. Background Art

[0002] A disc milling cutter is a milling cutter equipped with multiple cutter heads. The disc milling cutter uses multiple cutter heads to mill the workpiece in sequence, thereby processing the workpiece. The disc milling cutter includes a slot milling cutter for milling transverse grooves and a face milling cutter for milling the plane of the workpiece. When using a slot milling cutter to process a workpiece, if one of the cutter heads is broken due to wear and other reasons, it is necessary to stop the machine in time to prevent the broken blade from contacting the workpiece during rotation, causing greater damage to the workpiece. This means that even if the remaining blades are used, the workpiece can still be processed. The staff still needs to stop the machine in time and replace the damaged cutter head. In addition to replacing the cutter head during the shutdown, the newly installed cutter head also needs to be corrected and adjusted, which is relatively cumbersome and seriously affects the normal processing progress. Summary of the invention

[0003] In order to overcome the disadvantage that the existing cutter head cannot be used any more after being broken and has to be replaced only after being stopped, a disc milling cutter which is convenient for quick cutter change is provided.

[0004] The technical solution of the present invention is: a disc milling cutter that is convenient for quick tool change, comprising a cutter disc, a cooling box that is evenly distributed circumferentially fixedly connected to the lower side of the cutter disc, a fixing ring that is commonly fixedly connected to the upper side of the cooling box that is evenly distributed circumferentially, a blocking block that is slidably connected to one side of the cooling box, and the two are limitedly matched, the upper side of the cutter disc is slidably connected to an arc-shaped sliding plate that is evenly distributed circumferentially, there is damping between the arc-shaped sliding plate and the cutter disc, the arc-shaped sliding plate and the adjacent cooling box are a group, and the blocking block is located on the arc-shaped sliding plate and the cooling box of the same group. The arc sliding plate and the opposite sides of the blocking block of the same group are rotatably connected with a rotating block, and the rotating blocks of the same group are rotatably connected with a disc clamping frame together, the disc clamping frame is slidably connected with a fixed cylinder, the fixed cylinder is rotatably connected with a fixed frame, the fixed frame is equipped with a cutter head by bolts, the fixed cylinder is slidably connected with a sliding block on the side away from the adjacent fixed frame, the sliding block is rotatably connected with a fixing rod, the fixing cylinder is slidably matched with the adjacent fixing rod, and a fixing mechanism for fixing the fixing rods of adjacent groups is provided on the upper side of the arc sliding plate.

[0005] As a preferred technical solution of the present invention, the distance between the upper surface of the fixing ring and the lower surface of the cutter disc is less than or equal to the height of the cutter head.

[0006] As a preferred technical solution of the present invention, a first elastic member is installed between the sliding block and the adjacent fixed cylinder, the sliding block is fixedly connected to a sliding rod, and symmetrically distributed sliding grooves are arranged in the fixed frame. The sliding rod is provided with symmetrically distributed limiting balls that are respectively slidably connected to the adjacent sliding grooves, and the sliding grooves are composed of straight grooves and oblique grooves, and the oblique grooves are located on the side of the adjacent fixed frame close to the adjacent cutter head.

[0007] As a preferred technical solution of the present invention, the fixing mechanism includes symmetrically distributed first spring clamping columns, which are all installed on the upper side of the adjacent fixed rods, the upper side of the arc-shaped sliding plate is fixedly connected to an arc-shaped sliding frame, the upper side of the arc-shaped sliding frame is slidably connected to a closed sliding frame, the first spring clamping column is limitedly matched with the adjacent closed sliding frame, the side of the disc clamping frame close to the adjacent cutter head is fixedly connected to the first hydraulic telescopic rod, the side of the fixed cylinder close to the adjacent first hydraulic telescopic rod is installed with a second spring clamping column, the second spring clamping column is squeezed and limitedly matched with the telescopic end of the adjacent first hydraulic telescopic rod.

[0008] As a preferred technical solution of the present invention, the arc center of the arc-shaped sliding frame coincides with the rotation axis of the adjacent disk clamping frame for horizontal rotation.

[0009] As a preferred technical solution of the present invention, the arc-shaped sliding frame is slidably connected to a limit block, and a second elastic member is installed between the two, the limit block is limitedly matched with the adjacent closed sliding frame, a second hydraulic telescopic rod is fixedly connected to the upper side of the arc-shaped sliding plate, the telescopic end of the second hydraulic telescopic rod is fixedly connected to the adjacent limit block, and the second hydraulic telescopic rod is connected to the adjacent first hydraulic telescopic rod through a hose.

[0010] As a preferred technical solution of the present invention, a third hydraulic telescopic rod is fixedly connected to the side of the cooling box away from the adjacent blocking block, a third elastic member is installed between the telescopic end of the third hydraulic telescopic rod and the adjacent cooling box, the third hydraulic telescopic rod is connected to the adjacent and different groups of the first hydraulic telescopic rods, and the third hydraulic telescopic rod is extruded and matched with the adjacent and different groups of arc-shaped sliding plates.

[0011] As a preferred technical solution of the present invention, a cooling pipe is fixedly connected in the cutter disc, the cooling box is connected to the cooling pipe through a hose, and a first liquid spray port is provided on a side of the cooling box away from the cooling pipe.

[0012] As a preferred technical solution of the present invention, it also includes a conversion mechanism for converting the shape of the cutter head, the conversion mechanism is arranged on the cutter disc, and the conversion mechanism includes a hydraulic push rod, the hydraulic push rod is rotatably connected to the upper side of the cutter disc through a bracket, the telescopic end of the hydraulic push rod is fixedly connected to a fixed ring, the lower side of the fixed ring is rotatably connected to a rotating ring, the lower side of the rotating ring is limited and slidably connected to a slider uniformly distributed in the circumference, the sliders uniformly distributed in the circumference correspond one by one to each group of the arc-shaped sliding plates, the lower side of the slider is rotatably connected to an open sliding frame, the upper side of the fixed rod is fixedly connected to a fourth hydraulic telescopic rod, the telescopic end of the fourth hydraulic telescopic rod is slidably connected to the adjacent open sliding frame, the lower side of the fixed cylinder is rotatably connected to a fifth hydraulic telescopic rod, the telescopic end of the fifth hydraulic telescopic rod is rotatably connected to the adjacent fixed rod, and the fifth hydraulic telescopic rod is connected to the adjacent fourth hydraulic telescopic rod through a hose.

[0013] As a preferred technical solution of the present invention, the lower side of the cutter disc is slidably connected with a sliding extrusion plate which is evenly distributed circumferentially, and the sliding extrusion plates which are evenly distributed circumferentially correspond to each group of the cooling boxes one by one, and the lower side of the cooling box is provided with a second liquid spray port, and the sliding extrusion plate is provided with a through hole which is communicated and cooperated with the adjacent second liquid spray port, and a fourth elastic member is fixedly connected between the sliding extrusion plate and the adjacent cooling box, and a liquid stop plate is slidably connected to the side of the cooling box close to the adjacent first liquid spray port, and the liquid stop plate is provided with a through hole which is communicated and cooperated with the adjacent first liquid spray port, and a fifth elastic member is fixedly connected between the liquid stop plate and the adjacent cooling box, and the liquid stop plate is extruded and cooperated with the adjacent sliding extrusion plate, and the sliding extrusion plate is extruded and cooperated with the rotating ring.

[0014] Compared with the prior art, the present invention has at least the following beneficial effects: 1. When a certain cutter head is not working or damaged, the present invention controls the fixed cylinder to drive the cutter head to slide toward the center of the cutter disc, so that the cutter head stops contacting the workpiece, and does not affect the cutter heads at other positions from processing the workpiece, thereby avoiding delays in normal processing progress. 2. The present invention installs the cutter head on a fixed frame in advance, and then quickly installs the fixed frame, fixed cylinder, fixed rod and other components on the cutter disc, thereby achieving a quick tool change operation when the tool needs to be replaced, and the tool changing process is simple and easy to operate. 3. The present invention drives the movement of adjacent components through the telescopic end of the hydraulic push rod, controls the position state of the cutter head, and thereby achieves the function of switching between the slot milling cutter and the face milling cutter, thereby increasing the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0016] Figure 2It is a three-dimensional structural schematic diagram of the cutter disc, cooling box and fixing ring of the present invention;

[0017] Figure 3 It is a cross-sectional view of the cutter head, the fixed ring and the rotating ring of the present invention;

[0018] Figure 4 It is a three-dimensional structural schematic diagram of the cutter disc, cooling box and arc-shaped sliding plate of the present invention;

[0019] Figure 5 It is an exploded view of the arc-shaped sliding plate, the disc clamping frame and the fixing cylinder of the present invention;

[0020] Figure 6 It is a three-dimensional structural schematic diagram of the fixed cylinder, the sliding block and the fixed rod of the present invention;

[0021] Figure 7 It is a cross-sectional view of the fixing frame, the sliding block and the fixing rod of the present invention;

[0022] Figure 8 It is an exploded view of the arc-shaped sliding plate, the disc clamping frame and the closed sliding frame of the present invention;

[0023] Fig. 9 It is a cross-sectional view of the cutter head, cooling box and rotating ring of the present invention;

[0024] Fig.10 An exploded view of the cooling box, the blocking block and the sliding extrusion plate of the present invention;

[0025] Fig.11 It is a special state diagram of the cooling box, cutter head and hydraulic push rod of the present invention.

[0026] The symbols in the accompanying drawings represent: 1-cutter disc, 2-cooling box, 201-fixed ring, 202-blocking block, 203-first liquid spray port, 204-second liquid spray port, 3-arc-shaped sliding plate, 4-rotating block, 5-disc clamping frame, 6-fixed cylinder, 7-fixing frame, 8-cutter head, 9-sliding block, 91-first elastic member, 92-sliding rod, 93-sliding groove, 10-fixed rod, 11-first spring clamping column, 12-arc-shaped sliding frame, 13-closed sliding frame, 14-first A hydraulic telescopic rod, 15-a second spring clamping column, 16-a limiting clamping block, 161-a second elastic member, 17-a second hydraulic telescopic rod, 18-a third hydraulic telescopic rod, 19-a third elastic member, 20-a cooling pipe, 21-a hydraulic push rod, 22-a fixed ring, 23-a rotating ring, 24-an open sliding frame, 25-a fourth hydraulic telescopic rod, 26-a fifth hydraulic telescopic rod, 27-a sliding extrusion plate, 271-a fourth elastic member, 28-a liquid blocking plate, 281-a fifth elastic member. DETAILED DESCRIPTION

[0027] In order to more clearly illustrate the technical solutions of the implementation methods of the present application, the drawings required for use in the implementation methods will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope of the invention. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0028] Example 1: When the blade of an existing disc milling cutter breaks during the milling process, the staff must stop the machine in time and replace the broken blade. In fact, it is only necessary to keep the broken blade from contacting the workpiece and use the remaining blade to continue processing the workpiece. However, the existing device does not have the above function.

[0029] Therefore, in view of the above problems, the present invention proposes a disc milling cutter that is convenient for quick tool change. Figure 1-Figure 7, including a cutter disc 1, a cooling box 2 evenly distributed circumferentially is fixedly connected to the lower side of the cutter disc 1, which is used to spray coolant to the workpiece, and a fixing ring 201 is fixedly connected to the upper side of the cooling box 2 evenly distributed circumferentially. The distance between the upper surface of the fixing ring 201 and the lower surface of the cutter disc 1 is less than or equal to the height of the cutter head 8, which is convenient for the cutter head 8 to cut deeper grooves on the workpiece, and an arc-shaped sliding plate 3 evenly distributed circumferentially is slidably connected to the upper side of the cutter disc 1. There is damping between the arc-shaped sliding plate 3 and the cutter disc 1, which is used to delay the moving speed of the arc-shaped sliding plate 3, thereby increasing the detection time of the unstressed state on the cutter head 8, and the arc-shaped sliding plate 3 and the adjacent cooling box 2 are a group, and the cooling box 2 is slidably connected to one side of the arc-shaped sliding plate 3 of the same group. There is a blocking block 202, and the blocking block 202 is limited and matched with the adjacent cooling box 2. By limiting the movement of the blocking block 202, a supporting force is provided to the adjacent disc clamping frame 5, forming a fulcrum in the lever effort saving. The blocking block 202 is located between the arc-shaped sliding plate 3 and the cooling box 2 of the same group. The arc-shaped sliding plate 3 and the opposite sides of the blocking block 202 of the same group are rotatably connected with a rotating block 4. The rotating block 4 drives the adjacent disc clamping frame 5 to rotate, which is convenient for the staff to install parts such as the cutter head 8 and the fixed cylinder 6. The rotating blocks 4 of the same group are rotatably connected with the disc clamping frame 5 together. A notch is provided in the middle of the disc clamping frame 5 for the cutter head 8 and the fixed cylinder 6 to pass through. The disc clamping frame 5 is slidably connected with the fixed cylinder 6, and the fixed cylinder 6 is rotatably connected There is a fixing frame 7, and the fixing frame 7 is installed with a cutter head 8 by bolts. The staff can install the cutter head 8 on a group of idle fixing frames 7 in advance before installing the cutter head 8 on the cutter disc 1, so as to facilitate the subsequent rapid replacement of the cutter head 8. The side of the fixing cylinder 6 away from the adjacent fixing frame 7 is slidably connected with a sliding block 9. A first elastic member 91 is installed between the sliding block 9 and the adjacent fixing cylinder 6. The first elastic member 91 is a tension spring. During the processing, the adjacent cutter head 8 is retracted through the relative movement between the sliding block 9 and the adjacent fixing cylinder 6. The sliding block 9 is fixedly connected with a sliding rod 92. Two symmetrically distributed sliding grooves 93 are arranged in the fixing frame 7. The sliding rod 92 is symmetrically distributed and respectively slidably connected with the adjacent sliding grooves 93. The two limit balls, the sliding groove 93 consists of a straight groove and an oblique groove, the oblique groove is located on the side of the adjacent fixing frame 7 close to the adjacent cutter head 8, and is used to control the rotation of the cutter head 8 when the cutter head 8 and the adjacent fixing frame 7 are in the retracted state, so as to prevent the upper and lower sides of the cutter head 8 from continuing to contact the workpiece, the sliding block 9 is rotatably connected to the fixing rod 10, the distance between the cutter head 8 and the center of the adjacent disc clamping frame 5 is less than the fixing rod 10, the fixing cylinder 6 is slidably matched with the adjacent fixing rod 10, the distance between the end away from the adjacent cutter head 8 and the center of the adjacent disc clamping frame 5, the three adjacent ones form a lever relationship, and the fixing rod 10 is the long arm position of the lever, and the upper side of the arc-shaped sliding plate 3 is provided with a fixing mechanism for fixing the adjacent group of fixing rods 10.

[0030] See also Figure 5 , Figure 6 and Figure 8 The fixing mechanism includes two symmetrically distributed first spring clamping columns 11. The first spring clamping columns 11 are existing devices, specifically telescopic columns with springs, which can be completely retracted into the adjacent fixed rods 10. The two first spring clamping columns 11 are installed on the upper side of the adjacent fixed rods 10. The first spring clamping columns 11 are used to facilitate the operation of the staff. The fixed rods 10 are inserted into the adjacent closed sliding frames 13. The upper side of the arc-shaped sliding plate 3 is fixedly connected with an arc-shaped sliding frame 12. The arc center of the arc-shaped sliding frame 12 coincides with the rotation axis of the horizontal rotation of the adjacent disc clamping frame 5, which is convenient for the cutter head 8 to drive the adjacent fixed rods 10 and other parts to rotate around the adjacent disc clamping frame 5. The upper side of the arc-shaped sliding frame 12 is slidably connected with the closed sliding frame 13. The closed sliding frame 1 3 is provided with a slide groove, the first spring clamping column 11 on the fixed rod 10 is inserted into the slide groove of the closed sliding frame 13, thereby limiting the adjacent fixed rod 10, the slide groove of the closed sliding frame 13 is only used to limit the adjacent fixed rod 10 (in embodiment 1, the slide groove of the closed sliding frame 13 can be regarded as a circular hole), the upper side of the disc clamping frame 5 is provided with a groove near the adjacent cutter head 8, the groove of the disc clamping frame 5 is fixedly connected with a first hydraulic telescopic rod 14, the telescopic end of the first hydraulic telescopic rod 14 is provided with an inclined surface facing the groove of the adjacent disc clamping frame 5, so as to facilitate the second spring clamping column 15 on the fixed cylinder 6 to squeeze and pass through, and the fixed cylinder 6 is provided with a second spring clamping column 1 on the side close to the adjacent first hydraulic telescopic rod 14. 5. The second spring clamping column 15 is an existing device, specifically a telescopic column with a spring, which can be completely retracted into the adjacent fixed cylinder 6. The second spring clamping column 15 is limitedly matched with the telescopic end of the adjacent first hydraulic telescopic rod 14, thereby preventing the cutter head 8 from being retracted by the adjacent parts in the working state. The arc-shaped sliding frame 12 is slidably connected to the limit clamping block 16, and a second elastic member 161 is installed between the two. The second elastic member 161 is a tension spring, and the initial state of the second elastic member 161 is a force storage state, so that the force required to push the limit clamping block 16 to move is greater, thereby preventing the limit clamping block 16 from being squeezed and frequently moving. The side of the limit clamping block 16 inserted into the adjacent arc-shaped sliding frame 12 is set as an inclined surface, and the inclination angle of the inclined surface is less than 30°. , which is used to increase the pulling force of the second elastic member 161 to counteract the pressure applied by the adjacent closed sliding frame 13, so that the second elastic member 161 is in a labor-saving position, and the limit block 16 cooperates with the adjacent closed sliding frame 13 to limit the movement state of the adjacent closed sliding frame 13. A second hydraulic telescopic rod 17 is fixedly connected to the upper side of the arc-shaped sliding plate 3, and the telescopic end of the second hydraulic telescopic rod 17 is fixedly connected to the adjacent limit block 16. The second hydraulic telescopic rod 17 is connected to the adjacent first hydraulic telescopic rod 14 through a hose. When the telescopic end of the second hydraulic telescopic rod 17 retracts, the second hydraulic telescopic rod 17 extracts the hydraulic oil in the adjacent first hydraulic telescopic rod 14, thereby controlling the telescopic end of the adjacent first hydraulic telescopic rod 14 to retract.

[0031] See also Figure 4, Figure 5 , Fig. 9 and Fig.10 A third hydraulic telescopic rod 18 is fixedly connected to one side of the cooling box 2 away from the adjacent blocking block 202. The third hydraulic telescopic rod 18 is used to detect the unstressed state of the adjacent cutter head 8. A third elastic member 19 is installed between the telescopic end of the third hydraulic telescopic rod 18 and the adjacent cooling box 2. The third elastic member 19 is a spring. The third hydraulic telescopic rod 18 is connected to the adjacent and different groups of first hydraulic telescopic rods 14. When the telescopic end of the third hydraulic telescopic rod 18 retracts, the third hydraulic telescopic rod 18 extracts the hydraulic oil in the adjacent first hydraulic telescopic rod 14, thereby controlling the adjacent first hydraulic telescopic rod 14. The telescopic end of the rod 14 retracts, and the third hydraulic telescopic rod 18 is squeezed and matched with the adjacent and different groups of arc-shaped sliding plates 3 to determine whether the adjacent cutter heads 8 are in working condition. A cooling pipe 20 is fixedly connected to the cutter disc 1, and the cooling box 2 is connected to the cooling pipe 20 through a hose. When the cooling liquid is filled in the cooling box 2, the coolant squeezes the adjacent blocking block 202 to the side close to the adjacent disc clamping frame 5 through the liquid pressure. A first liquid spray port 203 is provided on the side of the cooling box 2 away from the cooling pipe 20. The first liquid spray port 203 is used to control the lateral spraying of the adjacent coolant.

[0032] When the staff installs the cutter head 8 on the cutter disc 1, they first install the cutter head 8 on the fixing frame 7 through two bolts. At this time, the fixing cylinder 6 and the adjacent fixing rod 10 are in a contracted state under the pulling force of the adjacent first elastic member 91. The sliding block 9 and the adjacent fixing rod 10 are inserted into the adjacent fixing cylinder 6, and the upper limit ball of the sliding rod 92 cooperates with the oblique groove portion of the sliding groove 93. The cutter head 8 on the fixing frame 7 is in a horizontal state. When the staff installs the fixing cylinder 6 on the adjacent disc clamping frame 5, taking the installation of the fixing cylinder 6 on the leftmost disc clamping frame 5 as an example, the staff first rotates the disc clamping frame 5 and the two adjacent rotating blocks 4 to a vertical state together, and at this time the groove of the disc clamping frame 5 is located at the lower side of the disc clamping frame 5, and then the cutter head 8, the fixing frame 7 and the fixing cylinder 6 are vertically inserted downward into the disc clamping frame 5, so that the cutter head 8 moves to the lower side of the disc clamping frame 5, and the second spring clamping column 15 is in the fixing cylinder 6. When the second spring clamping column 15 is stuck by the upper side of the disc clamping frame 5, the staff member presses the second spring clamping column 15 into the fixed cylinder 6 by hand, so that the second spring clamping column 15 does not hinder the fixed cylinder 6 from moving downward, and the second spring clamping column 15 is squeezed on the inner wall of the disc clamping frame 5 under the action of its own elastic force. When the second spring clamping column 15 continues to move downward to the groove of the disc clamping frame 5, the second spring clamping column 15 is separated from the inner wall of the disc clamping frame 5, and the second spring clamping column 15 extends into the groove of the disc clamping frame 5 under the action of its own elastic force. Subsequently, as the second spring clamping column 15 continues to move downward, the second spring clamping column 15 moves to the lower side of the first hydraulic telescopic rod 14 by squeezing the inclined surface of the telescopic end of the first hydraulic telescopic rod 14. At this time, the second spring clamping column 15 is limited by the telescopic end of the first hydraulic telescopic rod 14 and can no longer move upward, and the staff member stops moving the fixed cylinder 6 downward.

[0033] After the staff stops moving the fixed cylinder 6 downward, the control disc clamping frame 5 and the two adjacent rotating blocks 4 drive the adjacent parts to rotate and reset to a horizontal state. At this time, the first spring clamping column 11 on the fixed rod 10 is located on the left side of the closed sliding frame 13. Then the staff manually drags the fixed rod 10 and the adjacent parts to move to the right, and the sliding rod 92 stretches and accumulates force. When the fixed rod 10 drives the sliding block 9 and the first spring clamping column 11, the sliding rod 92 and other parts to move to the right together, the ball on the sliding rod 92 moves to the left. During the right movement, the limiting ball of the sliding rod 92 first drives the fixed frame 7 to rotate by squeezing the inclined groove on the adjacent sliding groove 93, so that the fixed frame 7 drives the cutter head 8 to rotate to a vertical state, and the blade of the cutter head 8 faces the side of the cutter disc 1. When the cutter head 8 just rotates to a vertical state, the ball on the sliding rod 92 moves to the junction of the inclined groove and the straight groove on the adjacent sliding groove 93, and then the ball on the sliding rod 92 slides to the right along the straight groove of the sliding groove 93 while continuing to move to the right, and the cutter head 8 always remains in a vertical state.

[0034] When the fixing rod 10 drives the first spring clamping column 11 to move to the closed sliding frame 13, the staff presses the two first spring clamping columns 11 to make the two first spring clamping columns 11 retract into the fixing rod 10, thereby inserting the fixing rod 10 into the closed sliding frame 13, and then the first spring clamping column 11 is inserted into the sliding groove of the closed sliding frame 13 under the action of its own elastic force, limiting the adjacent fixing rod 10, and installing the cutter head 8 in the fixing frame 7 in advance, and then using the first spring clamping column 11 and the second spring clamping column 15 to quickly install the fixing cylinder 6 for installing the cutter head 8 on the cutter disc 1, the installation process is simple and convenient, and by extending the installation distance of the cutter head 8, the accuracy of rapid installation is increased, avoiding the problem that the penetrating cutter head 8 is installed only by two screws with a close distance, which easily causes the installed tool to have a slight deflection and affects the overall accuracy of the disc milling cutter.

[0035] After the staff has installed all the cutter heads 8 on the cutter disc 1 through the fixing tube 6, the staff will install the cutter disc 1 at the end of the robotic arm and then prepare for cutting. The staff will first control the cutter disc 1 through the robotic arm to drive the adjacent parts to rotate clockwise (from a top-down perspective). At this time, the cutter disc 1 drives the arc-shaped sliding plate 3 to rotate in the same direction through damping, and the arc-shaped sliding plate 3 slowly slides in the opposite direction of rotation until the arc-shaped sliding plate 3 passes through the rotating block 4 of the same group, the disc clamping frame 5 of the same group and other parts, and pushes the blocking block 202 of the same group to cooperate with the adjacent cooling box 2 to limit the position. At this time, the cutter disc 1 drives the adjacent parts to rotate together through the cooling box 2.

[0036] When starting to cut, the staff controls the cutter disc 1 to approach the cutting piece, and at the same time, coolant is introduced into all cooling boxes 2 through the cooling pipe 20, and the coolant is sprayed to the workpiece through the adjacent first spray port 203. Then, multiple cutter heads 8 contact the workpiece in turn and cut the workpiece at a certain feed speed. At this time, the cutter head 8 is subjected to the reaction force given by the workpiece, and the cutter head 8 transmits the counterclockwise (from the top to the bottom) rotation force to the disc clamping frame 5. The disc clamping frame 5 transmits the counterclockwise rotation force to the closed sliding frame 13 through the fixed cylinder 6, the sliding block 9, the fixed rod 10 and other components. The closed sliding frame 13 squeezes the inclined surface of the adjacent limit block 16, and tries to move to one side of the adjacent disc clamping frame 5 by squeezing the limit block 16 to facilitate the movement of the closed sliding frame 13. The pulling force of the second elastic member 161 limits the movement of the closed sliding frame 13. At this time, because the distance between the force point of the closed sliding frame 13 and the rotation center of the disc clamping frame 5 is greater than the distance between the force point of the cutter head 8 and the rotation center of the disc clamping frame 5, a lever force-saving relationship is formed. At the same time, because the inclination angle of the inclined surface of the limit block 16 is less than 30°, the second elastic member 161 only needs to apply a small elastic force to resist the force of the closed sliding frame 13 squeezing the limit block 16 to move, forming a second layer of force-saving relationship, and the initial state of the second elastic member 161 is a stored force state. Therefore, under the normally designed feed speed, the cutter head 8 cannot obtain the reaction force to drive the adjacent components to rotate counterclockwise. Therefore, during normal cutting, the cutter head 8, the disc clamping frame 5, the arc-shaped sliding plate 3 and the cutter disc 1 always maintain a relatively fixed state.

[0037] When the cutter head 8 suddenly breaks due to wear and other reasons (the leftmost cutter head 8 and adjacent parts are taken as an example), if the friction between the cutter head 8 and the workpiece increases instantly, the reaction force on the cutter head 8 suddenly increases, causing the force of the closed sliding frame 13 squeezing the adjacent limit block 16 to suddenly increase, and the force on the limit block 16 is greater than the pulling force stored in the second elastic member 161. At this time, the limit block 16 quickly slides to the outside of the arc-shaped sliding frame 12, and the second elastic member 161 is stretched. During the sliding process of the limit block 16, the telescopic end of the second hydraulic telescopic rod 17 is simultaneously squeezed to reset, and the second hydraulic The telescopic rod 17 extracts the hydraulic oil in the adjacent first hydraulic telescopic rod 14, and the telescopic end of the first hydraulic telescopic rod 14 retracts and resets and no longer limits the adjacent second spring clamping column 15. At this time, the second spring clamping column 15, the fixed cylinder 6, the fixed frame 7 and the cutter head 8 are driven by the adjacent first elastic member 91 to move to the right and reset. The sliding groove 93 slides to the right relative to the sliding rod 92 through the cooperation of the upper straight groove and the adjacent limiting ball. When the second spring clamping column 15 moves to the right side of the first hydraulic telescopic rod 14 (the second spring clamping column 15 is located in the groove of the disc clamping frame 5), the friction between the cutter head 8 and the workpiece is weakened. At this time, the sliding The upper limit ball on the rod 92 is still located in the adjacent straight groove. The limit block 16 drives the adjacent parts to move to the right and reset under the drive of the second elastic member 161. The telescopic end of the first hydraulic telescopic rod 14 extends and resets. During the movement of the fixed frame 7 and the cutter head 8 to the right, the sliding groove 93 is driven to slide to the right relative to the sliding rod 92. When the inclined groove on the sliding groove 93 cooperates with the adjacent limit ball on the sliding rod 92, the fixed frame 7 drives the cutter head 8 to rotate along the adjacent inclined groove to a horizontal state. At this time, the cutter head 8 completely loses contact with the workpiece. At this time, the normal operation of other cutter heads 8 no longer affects the further processing of the workpiece by this device. Subsequently, due to the wear of the cutter head 8 will no longer be in contact with the workpiece, so it will no longer obtain a counterclockwise reaction force. At this time, the coolant in the cooling box 2 pushes the blocking block 202 in the clockwise direction (from a top-down perspective) through the liquid pressure, and the blocking block 202 pushes the arc-shaped sliding plate 3 and other adjacent components to overcome the damping and continue to rotate clockwise until the arc-shaped sliding plate 3 contacts the adjacent and different group of third hydraulic telescopic rods 18. After the arc-shaped sliding plate 3 squeezes the telescopic end of the third hydraulic telescopic rod 18 and retracts, the arc-shaped sliding plate 3 no longer rotates relative to the cutter disc 1, and the blocking block 202 pushes the arc-shaped sliding plate 3 to rotate with the cutter disc 1 through the adjacent components.

[0038] If the cutter head 8 breaks, the friction between the cutter head 8 and the workpiece becomes smaller. At this time, the worn cutter head 8 will no longer contact the workpiece. The coolant in the cooling box 2 pushes the blocking block 202 according to the same principle as above, until the arc-shaped sliding plate 3 contacts the adjacent and different group of third hydraulic telescopic rods 18. The telescopic end of the third hydraulic telescopic rod 18 is squeezed and contracts inward. The third hydraulic telescopic rod 18 extracts the hydraulic oil in the first hydraulic telescopic rod 14 of the same group as the arc-shaped sliding plate 3. The telescopic end of the first hydraulic telescopic rod 14 retracts inward, causing the cutter head 8 to repeat the above operation and completely lose contact with the workpiece.

[0039] After the processing is completed, the staff can quickly replace the worn and damaged cutter head 8 through the above-mentioned process of installing the cutter head 8, so that the device can resume normal working process.

[0040] In Example 1, the slide groove of the closed sliding frame 13 is only used to limit the adjacent fixed rods 10, and the slide groove of the closed sliding frame 13 can be regarded as a circular hole. In Example 2, the slide groove of the closed sliding frame 13 is an inclined groove, and the fixed rod 10 can slide freely along the slide groove in the adjacent closed sliding frame 13, and the adjacent fixed rod 10 is limited by the cooperation of the open sliding frame 24 and the telescopic end of the fourth hydraulic telescopic rod 25.

[0041] Example 2: When the same workpiece needs to be grooved and milled, the staff needs to remove the groove milling cutter from the robot arm and install the face milling cutter on the robot arm during the processing interval. This process is time-consuming and labor-intensive and requires the preparation of additional disc milling cutters, which is not conducive to smooth processing.

[0042] For the above questions, see Figure 2-Figure 6 and Fig.11, also includes a conversion mechanism arranged on the cutter disc 1, the conversion mechanism is used to convert the shape of the cutter head 8, so that the device has the functions of a face milling cutter and a slot milling cutter at the same time, the conversion mechanism includes a hydraulic push rod 21 rotatably connected to the upper side of the cutter disc 1 through a bracket, the hydraulic push rod 21 is rotatably connected to the cutter disc 1, and does not affect the cutter disc 1 driving the adjacent parts to rotate. The staff connects the hydraulic push rod 21 with the existing hydraulic system to operate the device to convert the face milling cutter and the slot milling cutter, the telescopic end of the hydraulic push rod 21 is fixedly connected to a fixed ring 22, the lower side of the fixed ring 22 is rotatably connected to a rotating ring 23, the lower side of the rotating ring 23 is limited and slidably connected to a number of sliders uniformly distributed in the circumferential direction, and the number of sliders corresponds to each group of arc-shaped sliding plates 3 one by one, and the lower side of the slider is rotatably connected to an open sliding frame 24, and the open sliding frame 24 limits the telescopic height of the adjacent fixed parts by limiting the telescopic height of the fourth hydraulic telescopic rod 25. The fixed rod 10 is limited, and a fourth hydraulic telescopic rod 25 is fixedly connected to the upper side of the fixed rod 10, and a support rod is fixedly connected to the telescopic end of the fourth hydraulic telescopic rod 25. The telescopic end of the fourth hydraulic telescopic rod 25 is slidably connected to the adjacent open sliding frame 24 through the support rod, and the lower side of the fixed cylinder 6 is rotatably connected to the fifth hydraulic telescopic rod 26. The capacity of the fifth hydraulic telescopic rod 26 is completely equal to that of the adjacent fourth hydraulic telescopic rod 25. The telescopic end of the fifth hydraulic telescopic rod 26 is rotatably connected to the adjacent fixed rod 10. When the telescopic end of the fifth hydraulic telescopic rod 26 is fully extended, the fixed cylinder 6 and the adjacent fixed rod 10 are in a fully straightened state. When the telescopic end of the fifth hydraulic telescopic rod 26 is fully retracted, the fixed cylinder 6 and the adjacent fixed rod 10 are rotated to a right angle along the rotation connection between the adjacent fixed rod 10 and the adjacent sliding block 9, and the fifth hydraulic telescopic rod 26 is connected to the adjacent fourth hydraulic telescopic rod 25 through a hose.

[0043] See also Figure 4 , Figure 5 , Fig. 9 and Fig.10The lower side of the cutter head 1 is slidably connected with a plurality of sliding extrusion plates 27 uniformly distributed in the circumferential direction, and the plurality of sliding extrusion plates 27 correspond one to one with each group of cooling boxes 2. A second liquid spray port 204 is provided on the lower side of the cooling box 2, and the second liquid spray port 204 is used to spray the cooling liquid downward. The sliding extrusion plate 27 is provided with a through hole communicating with the adjacent second liquid spray port 204 to control whether the cooling liquid is sprayed out through the adjacent second liquid spray port 204. A fourth elastic member 271 is fixedly connected between the sliding extrusion plate 27 and the adjacent cooling box 2, and the fourth elastic member 271 is a spring. A liquid stop plate 28 is slidably connected to one side of the cooling box 2 close to the adjacent first liquid spray port 203, and the liquid stop plate 28 is provided with a through hole communicating with the adjacent first liquid spray port 203 to control whether the cooling liquid is sprayed out through the adjacent second liquid spray port 204. The through hole is used to control whether the coolant is sprayed out through the adjacent first liquid spray port 203. A fifth elastic member 281 is fixedly connected between the liquid blocking plate 28 and the adjacent cooling box 2. The fifth elastic member 281 is a spring. An inclined surface is provided on the side of the sliding extrusion plate 27 close to the adjacent liquid blocking plate 28. The liquid blocking plate 28 is provided with an inclined surface that is pressed and matched with the inclined surface of the adjacent sliding extrusion plate 27. When the sliding extrusion plate 27 closes the adjacent second liquid spray port 204, the sliding extrusion plate 27 squeezes the adjacent liquid blocking plate 28 through the inclined surface, controls the adjacent liquid blocking plate 28 to move upward, and then controls the adjacent first liquid spray port 203 to open. The sliding extrusion plate 27 is pressed and matched with the rotating ring 23 to control whether the adjacent sliding extrusion plate 27 moves.

[0044] When the worker installs the cutter head 8 on the cutter disc 1, the worker also inserts the telescopic end of the fourth hydraulic telescopic rod 25 into the open sliding frame 24 laterally. When the worker installs the cutter disc 1 on the mechanical arm, the worker installs the hydraulic push rod 21 on the mechanical arm and connects the hydraulic push rod 21 to the hydraulic system on the mechanical arm through a hose. When the worker needs to perform transverse grooving, the worker controls the telescopic end of the hydraulic push rod 21 through the hydraulic system to keep it fully extended (the cutter head 8 and adjacent parts on the far left are still taken as an example below). The telescopic end of the hydraulic push rod 21 is squeezed by the fixed ring 22, the rotating ring 23 and the open sliding frame 24 to completely retract the telescopic end of the fourth hydraulic telescopic rod 25, and the fixed rod 10 is squeezed and maintained in a closed position. At the bottom of the adjacent slide groove of the sliding frame 13, the fourth hydraulic telescopic rod 25 squeezes the hydraulic oil into the fifth hydraulic telescopic rod 26, and the telescopic end of the fifth hydraulic telescopic rod 26 is fully extended, so that the sliding block 9 and the fixed rod 10 remain in a horizontal state. At this time, the blades of all the cutter heads 8 are facing the side of the cutter disc 1, and the rotating ring 23 squeezes the sliding squeezing plate 27 to make the sliding squeezing plate 27 slide to the left. The through hole on the sliding squeezing plate 27 is staggered with the second liquid injection port 204. The sliding squeezing plate 27 squeezes the left liquid stop plate 28 upward through the left inclined surface. The through hole on the liquid stop plate 28 is connected to the first liquid injection port 203. The fifth elastic member 281 is compressed and stored. At this time, the coolant can only be sprayed out laterally through the first liquid injection port 203.

[0045] When the staff needs to control the cutter head 8 to swing downward and perform milling on the surface of the workpiece, the staff controls the telescopic end of the hydraulic push rod 21 to retract upward through the hydraulic system, and the telescopic end of the hydraulic push rod 21 drives the telescopic end of the fourth hydraulic telescopic rod 25 to move upward through the fixed ring 22, the rotating ring 23 and the open sliding frame 24 and other components. While the fourth hydraulic telescopic rod 25 drives the fixed rod 10 to move upward together, the telescopic end of the fourth hydraulic telescopic rod 25 is gradually pulled out, and the fixed rod 10 gradually moves to the top of the adjacent slide groove of the closed sliding frame 13, and the fourth hydraulic telescopic rod 25 gradually extracts the hydraulic oil from the fifth hydraulic telescopic rod 26, and the telescopic end of the fifth hydraulic telescopic rod 26 gradually retracts, so that the sliding block 9 and the fixed rod 10 gradually bend to a vertical state, and the sliding block 9 drives the fixed frame 7 and the disc clamping frame 5 and other components to gradually rotate to a completely vertical state through the fixed cylinder 6. At this time, the blades of all cutter heads 8 are facing the lower side of the cutter disc 1 (such as Fig.11 As shown), at this time, the second spring clamping column 15 on the fixed cylinder 6 is still limited by the adjacent first hydraulic telescopic rod 14 and cannot retract upward. The rotating ring 23 no longer squeezes the sliding squeezing plate 27. The sliding squeezing plate 27 moves to the right and resets under the drive of the adjacent fourth elastic member 271. The through hole on the sliding squeezing plate 27 is connected to the second liquid spraying port 204. The liquid retaining plate 28 moves and resets under the drive of the adjacent fifth elastic member 281. The through hole on the liquid retaining plate 28 is staggered with the first liquid spraying port 203. At this time, the coolant can only be sprayed downward through the second liquid spraying port 204. At this time, the staff can control the device to perform plane milling processing normally.

[0046] When the cutter head 8 on the cutter disc 1 is performing plane milling processing, the working principle is the same as the above-mentioned grooving processing, and the first hydraulic telescopic rod 14, the second hydraulic telescopic rod 17 and other components all work according to the same working principle. When the reaction force received by the cutter head 8 is different from the pressure during operation, resulting in the contraction of the telescopic end of the first hydraulic telescopic rod 14, the cutter head 8 and the fixed frame 7 and other components move upward under the drive of the adjacent first elastic member 91. However, at this time, because the sliding block 9 and the fixed rod 10 are in a vertical state, the sliding block 9 cannot be completely retracted into the fixed cylinder 6, so the inclined groove on the sliding groove 93 cannot move to the position where it cooperates with the adjacent sliding rod 92, so the cutter head 8 only retracts upward and does not rotate.

[0047] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of those skilled in the art without departing from the spirit of the present invention.

Claims

1. A disc milling cutter for facilitating rapid tool change, comprising a cutter disc (1), the lower side of the cutter disc (1) being fixedly connected to cooling boxes (2) evenly distributed in the circumferential direction, the upper sides of the cooling boxes (2) evenly distributed in the circumferential direction being commonly fixedly connected to a fixing ring (201), one side of the cooling box (2) being slidably connected to a blocking block (202), and the two being limitedly matched, characterized in that: The invention also comprises arc-shaped sliding plates (3) uniformly distributed in the circumferential direction, wherein the arc-shaped sliding plates (3) uniformly distributed in the circumferential direction are all slidably connected to the upper side of the cutter disc (1), damping exists between the arc-shaped sliding plates (3) and the cutter disc (1), the arc-shaped sliding plates (3) and the adjacent cooling boxes (2) form a group, and the blocking blocks (202) are located between the arc-shaped sliding plates (3) and the cooling boxes (2) of the same group, and the opposite sides of the arc-shaped sliding plates (3) and the blocking blocks (202) of the same group are both rotatably connected to rotating blocks (4), and the rotating blocks (4) of the same group are connected together. A disc clamping frame (5) is rotatably connected to the disc clamping frame (5), the disc clamping frame (5) is slidably connected to a fixing cylinder (6), the fixing cylinder (6) is rotatably connected to a fixing frame (7), a cutter head (8) is mounted on the fixing frame (7) via bolts, a sliding block (9) is slidably connected to a side of the fixing cylinder (6) away from an adjacent fixing frame (7), the sliding block (9) is rotatably connected to a fixing rod (10), the fixing cylinder (6) is slidably matched with an adjacent fixing rod (10), and a fixing mechanism for fixing an adjacent group of fixing rods (10) is provided on the upper side of the arc-shaped sliding plate (3); The fixing mechanism comprises symmetrically distributed first spring clamping columns (11), which are all installed on the upper side of the adjacent fixing rod (10); the upper side of the arc-shaped sliding plate (3) is fixedly connected with an arc-shaped sliding frame (12); the upper side of the arc-shaped sliding frame (12) is slidably connected with a closed sliding frame (13); the first spring clamping column (11) is limitedly matched with the adjacent closed sliding frame (13); the side of the disc clamping frame (5) close to the adjacent cutter head (8) is fixedly connected with a first hydraulic telescopic rod (14); the side of the fixing cylinder (6) close to the adjacent first hydraulic telescopic rod (14) is installed with a second spring clamping column (15); the second spring clamping column (15) is squeezed and limitedly matched with the telescopic end of the adjacent first hydraulic telescopic rod (14).

2. A disc milling cutter for quick tool change according to claim 1, characterized in that: The distance between the upper surface of the fixing ring (201) and the lower surface of the cutter disc (1) is less than or equal to the height of the cutter head (8).

3. A disc milling cutter for quick tool change according to claim 1, characterized in that: A first elastic member (91) is installed between the sliding block (9) and the adjacent fixed cylinder (6); the sliding block (9) is fixedly connected to a sliding rod (92); symmetrically distributed sliding grooves (93) are arranged in the fixed frame (7); the sliding rod (92) is provided with symmetrically distributed limiting balls which are respectively slidably connected to the adjacent sliding grooves (93); the sliding groove (93) consists of a straight groove and an oblique groove; the oblique groove is located in the adjacent fixed frame (7) on a side close to the adjacent cutter head (8).

4. The disc milling cutter for quick tool change according to claim 1, characterized in that: The arc center of the arc-shaped sliding frame (12) coincides with the rotation axis of the adjacent disk clamping frame (5) for horizontal rotation.

5. A disc milling cutter for quick tool change according to claim 4, characterized in that: The arc-shaped sliding frame (12) is slidably connected to a limit block (16), and a second elastic member (161) is installed between the two. The limit block (16) is limitedly matched with the adjacent closed sliding frame (13). A second hydraulic telescopic rod (17) is fixedly connected to the upper side of the arc-shaped sliding plate (3). The telescopic end of the second hydraulic telescopic rod (17) is fixedly connected to the adjacent limit block (16). The second hydraulic telescopic rod (17) is connected to the adjacent first hydraulic telescopic rod (14) through a hose.

6. A disc milling cutter for quick tool change according to claim 5, characterized in that: A third hydraulic telescopic rod (18) is fixedly connected to a side of the cooling box (2) away from the adjacent blocking block (202); a third elastic member (19) is installed between the telescopic end of the third hydraulic telescopic rod (18) and the adjacent cooling box (2); the third hydraulic telescopic rod (18) is connected to the adjacent and different group of the first hydraulic telescopic rod (14); and the third hydraulic telescopic rod (18) is squeezed and fitted with the adjacent and different group of arc-shaped sliding plates (3).

7. A disc milling cutter for quick tool change according to claim 6, characterized in that: A cooling pipe (20) is fixedly connected to the cutter disc (1), the cooling box (2) is connected to the cooling pipe (20) via a hose, and a first liquid spray port (203) is provided on a side of the cooling box (2) away from the cooling pipe (20).

8. The disc milling cutter for quick tool change according to claim 7, characterized in that: The invention also comprises a conversion mechanism for converting the shape of the cutter head (8), the conversion mechanism being arranged on the cutter disc (1), the conversion mechanism comprising a hydraulic push rod (21), the hydraulic push rod (21) being rotatably connected to the upper side of the cutter disc (1) via a bracket, the telescopic end of the hydraulic push rod (21) being fixedly connected to a fixed ring (22), the lower side of the fixed ring (22) being rotatably connected to a rotating ring (23), the lower side of the rotating ring (23) being limitedly slidably connected to circumferentially evenly distributed sliders, the circumferentially evenly distributed sliders and each group of the arc-shaped sliding plates (3) In one-to-one correspondence, the lower side of the slider is rotatably connected to an open sliding frame (24), the upper side of the fixed rod (10) is fixedly connected to a fourth hydraulic telescopic rod (25), the telescopic end of the fourth hydraulic telescopic rod (25) is slidably connected to the adjacent open sliding frame (24), the lower side of the fixed cylinder (6) is rotatably connected to a fifth hydraulic telescopic rod (26), the telescopic end of the fifth hydraulic telescopic rod (26) is rotatably connected to the adjacent fixed rod (10), and the fifth hydraulic telescopic rod (26) is connected to the adjacent fourth hydraulic telescopic rod (25) through a hose.

9. A disc milling cutter for quick tool change according to claim 8, characterized in that: The lower side of the cutter disc (1) is slidably connected to a sliding extrusion plate (27) evenly distributed in the circumferential direction, the sliding extrusion plates (27) evenly distributed in the circumferential direction correspond one to one with each group of the cooling boxes (2), the lower side of the cooling boxes (2) is provided with a second liquid spraying port (204), the sliding extrusion plate (27) is provided with a through hole communicating with an adjacent second liquid spraying port (204), a fourth elastic member (271) is fixedly connected between the sliding extrusion plate (27) and the adjacent cooling boxes (2), A liquid blocking plate (28) is slidably connected to one side of the cooling box (2) close to the adjacent first liquid spraying port (203); the liquid blocking plate (28) is provided with a through hole communicating with the adjacent first liquid spraying port (203); a fifth elastic member (281) is fixedly connected between the liquid blocking plate (28) and the adjacent cooling box (2); the liquid blocking plate (28) is pressed and matched with the adjacent sliding extrusion plate (27); and the sliding extrusion plate (27) is pressed and matched with the rotating ring (23).

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