Milling cutter with cutting edge convenient to replace

Abstract

The invention belongs to the technical field of milling cutters, and relates to a milling cutter with a blade convenient to replace, the milling cutter comprises a main shaft, a mounting cutter head, mounting cutter sleeves and a cutter fixing mechanism, the bottom of the main shaft is in threaded connection with the mounting cutter head, and the lower part of the outer side of the mounting cutter head is uniformly connected with the mounting cutter sleeves at intervals along the circumferential direction; a mounting cutter groove is formed in the mounting cutter sleeve, a cutter head can be mounted in the mounting cutter groove, and a cutter fixing mechanism is arranged on the mounting cutter head and used for fixing the cutter head. When the tool bit of the milling cutter is replaced, only the sliding shaft needs to be pulled to move upwards, the tool bit can be loosened through the positioning rod, then the tool bit can be replaced, after replacement is completed, the sliding shaft is controlled to move downwards, the tool bit replacement operation is more convenient, and the replacement efficiency is higher.

Description

Technical Field

[0001] The present invention belongs to the technical field of milling cutters and relates to a milling cutter facilitating the replacement of cutting edges. Background Art

[0002] A milling machine is a multi-functional machine tool widely used in various machining occasions. It can perform a variety of machining operations on workpieces through different types of milling cutters, including but not limited to surface machining, groove cutting, manufacturing of gear-shaped parts, formation of spiral surfaces, and machining of complex curved surfaces. In addition, the milling machine is also suitable for operations such as surface treatment of rotating bodies, finish machining of inner holes, and material cutting. During the machining process using a milling machine, milling cutters are required for cutting work. Common milling cutters are of two types: integral type and split type. The split-type milling cutter consists of multiple independent cutter heads, which need to be assembled onto the cutter bar separately.

[0003] When assembling the existing split-type milling cutter, the cutter head is first manually assembled onto the cutter bar by workers. After the assembly is completed, the cutter head is fixed by tightening screws. When replacing the cutter head, the original screws need to be removed, and then the cutter head is replaced, and then the screws are turned to fix the cutter head. Each time the cutter head is replaced, multiple screws need to be disassembled and assembled back and forth, and the operation process is rather laborious, and the working efficiency of the cutter head during the replacement operation is relatively low. Summary of the Invention

[0004] In view of this, the present invention provides a milling cutter facilitating the replacement of cutting edges.

[0005] The technical implementation solution of the present invention is: a milling cutter facilitating the replacement of cutting edges, including a spindle, a mounting cutter disc, a mounting cutter sleeve, and a cutter fixing mechanism. The bottom of the spindle is connected with the mounting cutter disc through threads. The lower part of the outer side of the mounting cutter disc is evenly spaced circumferentially and connected with mounting cutter sleeves. A mounting cutter groove is opened in the mounting cutter sleeve, and the cutter head can be mounted in the mounting cutter groove. A cutter fixing mechanism is provided on the mounting cutter disc, and the cutter fixing mechanism is used to fix the cutter head.

[0006] Optionally, the cutter fixing mechanism includes a positioning rod, a piston plate, and an extrusion assembly. A plurality of hydraulic chambers are evenly spaced circumferentially and opened in the lower part of the outer side of the mounting cutter disc. The number of hydraulic chambers is the same as that of the mounting cutter sleeves and is arranged close to the mounting cutter sleeves. A piston plate is slidably connected in the hydraulic chamber. A plurality of positioning rods are evenly spaced and connected to the side of the piston plate close to the mounting cutter groove. The positioning rods pass through the mounting cutter sleeve and extend into the mounting guide groove. An extrusion assembly is opened on the mounting cutter disc, and the extrusion assembly can drive the piston plate to move.

[0007] Optionally, the extrusion assembly includes a sliding shaft, a first elastic member, and a piston block. A liquid guide groove is formed at the top of the hydraulic chamber. The top of the liquid guide groove communicates with an installation groove. A sliding shaft is slidably connected in the installation groove. The top of the sliding shaft passes through the installation cutter head and is slidably engaged with the installation cutter head. The bottom of the sliding shaft is connected to a piston block. The installation groove, the hydraulic chamber, and the liquid guide groove are all filled with hydraulic oil. A first elastic member is connected between the piston block and the inner top of the installation groove.

[0008] Optionally, a locking mechanism is further included. The locking mechanism includes a guide rod, a positioning block, and a second elastic member. A guide rod is connected to the middle of the lower part of the main shaft. Positioning blocks are slidably connected to both sides of the guide rod. A second elastic member is connected between the positioning block and the main shaft.

[0009] Optionally, a synchronous control mechanism is further included. The synchronous control mechanism includes a fixed disk, a rotating sleeve, and a contact shaft. A fixed disk is connected to the upper part of the outer side of the installation cutter head. The outer ring of the fixed disk is rotatably connected to a rotating sleeve. A plurality of inclined grooves are evenly spaced along the circumferential direction on the outer side of the rotating sleeve. The number of the inclined grooves is the same as that of the sliding shafts. A contact shaft is connected to the sliding shaft. The contact shaft is located in the inclined groove.

[0010] Optionally, the bottom end of the inclined groove is arranged as a plane. When the contact shaft moves to the bottom end of the inclined groove, the top plane of the contact shaft contacts the bottom plane of the inclined groove.

[0011] Optionally, a friction washer is arranged on the outer side of the rotating sleeve.

[0012] Optionally, an adjusting mechanism is further included. The adjusting mechanism includes a sliding ring, a guiding shaft, an adjusting screw, an extrusion piston, and an adjusting rod. A guiding shaft is connected to the installation cutter head. An adjusting screw is rotatably connected to the installation cutter head. A sliding ring is slidably connected to the guiding shaft. The sliding ring is in threaded cooperation with the adjusting screw. Four hydraulic channels are evenly spaced along the circumferential direction on the installation cutter head. A communication groove is formed in the middle of the installation cutter head. The communication groove communicates with the hydraulic channels. An extrusion piston is slidably connected in the hydraulic channel. The top of the extrusion piston is connected to the sliding ring. A plurality of liquid injection grooves are evenly spaced along the circumferential direction on the installation cutter head. The two sides of the liquid injection groove communicate with the installation cutter groove and the communication groove respectively. The number of the liquid injection grooves is the same as that of the installation cutter sleeves. An adjusting rod is slidably connected in the liquid injection groove. The adjusting rod extends into the installation guide groove. The liquid injection groove, the hydraulic channel, and the communication groove are all filled with hydraulic oil.

[0013] Optionally, a pressing mechanism is further included. The pressing mechanism includes a pressing plate and a third elastic member. A pressing plate is slidably connected to the inner side wall of the installation cutter groove. A third elastic member is connected between the pressing plate and the installation cutter groove.

[0014] 1. When replacing the cutter head of the milling cutter, the present invention only needs to pull the sliding shaft upward to allow the positioning rod to loosen the cutter head, and then the cutter head can be replaced. After the replacement is completed, the sliding shaft can be controlled to move downward, which makes it more convenient to replace the cutter head and has a higher replacement efficiency.

[0015] 2. During the cutting process, the present invention can clamp the position between the installed cutter disc and the main shaft by moving the positioning block outward, thereby clamping the installed cutter disc and the main shaft, and assisting in fixing the installed cutter disc to prevent the installed cutter disc from loosening during the cutting process.

[0016] 3. After the cutter head is installed, the present invention can drive the sliding ring to move up and down by rotating the adjusting screw, thereby driving the extrusion piston to move up and down to adjust the position of the adjusting rod, thereby achieving the effect of controlling the extension length of the cutter head. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0018] Figure 2 It is a schematic diagram of the structure of the main shaft, the mounting cutter disc and the mounting cutter sleeve of the present invention.

[0019] Figure 3 This is a first cross-sectional view of the present invention.

[0020] Figure 4 This is a second cross-sectional view of the present invention.

[0021] Figure 5 This is a schematic diagram of the first structure of the tool fixing mechanism of the present invention.

[0022] Figure 6 This is a second structural schematic diagram of the tool fixing mechanism of the present invention.

[0023] Figure 7 It is a structural schematic diagram of the synchronous control mechanism of the present invention.

[0024] Figure 8 For the present invention Figure 7 Enlarged view of part A in .

[0025] Figure 9 It is a structural schematic diagram of the regulating mechanism of the present invention.

[0026] Figure 10 It is a structural schematic diagram of the adjustment mechanism after the cutter disc is installed in the present invention.

[0027] Figure 11 For the present invention Figure 10 Enlarged view of part B in FIG.

[0028] Figure 12It is a structural schematic diagram of the clamping mechanism of the present invention.

[0029] The markings of the components in the accompanying drawings are as follows: 1: main shaft, 2: installing the knife disc, 3: installing the knife sleeve, 4: installing the knife groove, 51: sliding shaft, 52: elastic part one, 53: piston block, 54: liquid guide groove, 55: piston plate, 56: positioning rod, 57: hydraulic chamber, 58: mounting groove, 61: guide rod, 62: positioning block, 63: elastic part two, 71: fixed plate, 72: rotating sleeve, 73: inclined groove, 74: contact shaft, 81: sliding ring, 82: guide shaft, 83: adjusting screw, 84: extrusion piston, 85: hydraulic channel, 86: connecting groove, 87: liquid injection groove, 88: adjusting rod, 91: clamping plate, 92: elastic part three, 100: knife head. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings. It is hereby stated that the directional terms such as up, down, left, right, front, back, inside, outside, etc. that appear or will appear in the text of the present invention are only based on the accompanying drawings of the present invention, and are not specific limitations of the present invention.

[0031] A milling cutter with easy replacement of cutting edges, such as Figures 1-6 As shown, it includes a main shaft 1, a mounting cutter disc 2, a mounting tool sleeve 3 and a tool fixing mechanism. The bottom of the main shaft 1 is connected to the mounting cutter disc 2 by a thread, and the lower outer side of the mounting cutter disc 2 is connected to the mounting tool sleeve 3 at uniform intervals along the circumferential direction. The mounting tool sleeve 3 is provided with a mounting tool groove 4, and the tool head 100 can be installed in the mounting tool groove 4. The mounting cutter disc 2 is provided with a tool fixing mechanism, and the tool fixing mechanism is used to fix the tool head 100.

[0032] like Figures 4-6 As shown, the tool fixing mechanism includes a positioning rod 56, a piston plate 55 and an extrusion assembly. A plurality of hydraulic chambers 57 are evenly spaced along the circumferential direction at the lower outer side of the mounting tool disc 2. The number of the hydraulic chambers 57 is consistent with the number of the mounting tool sleeve 3 and is arranged close to the mounting tool sleeve 3. A piston plate 55 is slidably connected in the hydraulic chamber 57. A plurality of positioning rods 56 are evenly spaced and connected to the side of the piston plate 55 close to the mounting tool groove 4. The positioning rod 56 passes through the mounting tool sleeve 3 and extends into the mounting guide groove. The positioning rod 56 can slide at the mounting tool sleeve 3. After the cutter head 100 is installed in the mounting tool groove 4, the positioning rod 56 can move to resist the cutter head 100 to assist in fixing the cutter head 100. An extrusion assembly is provided on the mounting tool disc 2, and the extrusion assembly can drive the piston plate 55 to move.

[0033] like Figures 4-6As shown in the figure, the extrusion assembly includes a sliding shaft 51, a first elastic member 52 and a piston block 53. A liquid guide groove 54 is formed at the top of the hydraulic chamber 57. The top of the liquid guide groove 54 communicates with an installation groove 58. A sliding shaft 51 is slidably connected in the installation groove 58. The top of the sliding shaft 51 passes through the installation cutter head 2 and is slidably matched with the installation cutter head 2. The bottom of the sliding shaft 51 is connected with a piston block 53. The installation groove 58, the hydraulic chamber 57 and the liquid guide groove 54 are all filled with hydraulic oil. The hydraulic oil in the installation groove 58 is located below the piston block 53, so that the up and down movement of the piston block 53 can pump the hydraulic oil in the hydraulic chamber 57 through the liquid guide groove 54, thereby driving the piston plate 55 to move. A first elastic member 52 is connected between the piston block 53 and the inner top of the installation groove 58. The first elastic member 52 is a compression spring.

[0034] During the use of this milling cutter, if the cutter head 100 needs to be replaced, the sliding shaft 51 can be pulled upward first. The upward movement of the sliding shaft 51 drives the piston block 53 to move upward, and the first elastic member 52 is compressed. When the piston block 53 moves upward, it can extract the liquid in the hydraulic chamber 57 through the liquid guide groove 54, so that the piston plate 55 moves along the hydraulic chamber 57. When the piston plate 55 moves, it drives the positioning rod 56 to move. At this time, the cutter head 100 can be placed into the installation cutter sleeve 3. After placing it, the sliding shaft 51 is released. Under the action of the first elastic member 52, the sliding shaft 51 moves downward, driving the piston block 53 to move downward. When the piston block 53 moves downward, it can inject the hydraulic oil into the hydraulic chamber 57 through the liquid guide groove 54, so that the piston plate 55 moves in the direction of the installation cutter sleeve 3. When the piston plate 55 moves, it can drive the positioning rod 56 to move together, so that the positioning rod 56 abuts against the cutter head 100, assisting in fixing the cutter head 100 of the milling cutter. In this way, the replacement work of the cutter head 100 of this milling cutter can be operated, and when replacing, only the sliding shaft 51 needs to be operated to move to perform the installation and replacement work of the cutter head 100. The operation is more convenient and the replacement efficiency is higher.

[0035] As Figure 3 and Figure 4 As shown in the figure, it further includes a locking mechanism. The locking mechanism includes a guide rod 61, a positioning block 62 and a second elastic member 63. A guide rod 61 is connected to the middle of the lower part of the main shaft 1. The positioning blocks 62 are slidably connected to both the left and right sides of the guide rod 61. In the initial state, the positioning block 62 is located inside the guide rod 61. The movement of the positioning block 62 can move to the installation cutter head 2. A second elastic member 63 is connected between the positioning block 62 and the main shaft 1. The second elastic member 63 is a connecting spring.

[0036] During the milling operation using this milling cutter, when the main shaft 1 rotates, it drives the guide rod 61 and the positioning block 62 to rotate. When the positioning block 62 rotates, it is thrown out by centrifugal force to the installation cutter head 2. At this time, the positioning block 62 is located between the installation cutter head 2 and the main shaft 1, and the second elastic member 63 is stretched. During the milling operation, it can clamp the installation cutter head 2 and the main shaft 1 to prevent the installation cutter head 2 from loosening or the installation cutter head 2 from continuing to rotate along the main shaft 1 during cutting, resulting in thread stripping.

[0037] As Figure 7 and Figure 8 shown, it further includes a synchronous control mechanism. The synchronous control mechanism includes a fixed disk 71, a rotating sleeve 72, and a contact shaft 74. The upper part of the outer side of the installation cutter head 2 is connected with a fixed disk 71. The outer ring of the fixed disk 71 is rotatably connected with a rotating sleeve 72. A plurality of inclined slots 73 are evenly spaced along the circumferential direction on the outer side of the rotating sleeve 72. The number of the inclined slots 73 is the same as the number of the sliding shafts 51. A contact shaft 74 is connected to the sliding shaft 51. The contact shaft 74 is located in the inclined slot 73, so that when the rotating sleeve 72 rotates, it drives the inclined slot 73 to rotate, and the rotation of the inclined slot 73 can squeeze the contact shaft 74 to move.

[0038] During the use of this milling cutter, if the blade needs to be replaced, the operator can manually operate the friction washer to rotate. When the friction washer rotates, it can drive the rotating sleeve 72 to rotate. When the rotating sleeve 72 rotates, it can drive the inclined slot 73 to rotate. When the inclined slot 73 rotates, it can squeeze the contact shaft 74 to move upward. When the contact shaft 74 moves upward, it will drive the sliding shaft 51 to move upward. At this time, the work of replacing the cutter head 100 can be carried out uniformly. After the replacement is completed, the operator can operate the friction washer to rotate in the reverse direction. In this way, the replacement work of the cutter head 100 can be carried out uniformly, which is more convenient during operation. After the cutter head 100 is installed, the flat surface at the bottom of the inclined slot 73 abuts against the contact shaft 74, thereby abutting against the sliding shaft 51 to prevent the sliding shaft 51 from moving upward during cutting, resulting in the loosening of the cutter head 100. The bottom end of the inclined slot 73 is provided with a flat surface. When the contact shaft 74 moves to the bottom end of the inclined slot 73, the top flat surface of the contact shaft 74 contacts the flat surface at the bottom end of the inclined slot 73, so that the inclined slot 73 can abut against the contact shaft 74 to prevent the contact shaft 74 from moving upward. A friction washer is arranged on the outer side of the rotating sleeve 72. Operating the friction washer to rotate can drive the rotating sleeve 72 to rotate. The friction washer can increase the friction force when the user holds it, preventing slipping when operating the rotating sleeve 72 to rotate.

[0039] As Figures 9-11As shown in the figure, it further includes an adjusting mechanism. The adjusting mechanism includes a sliding ring 81, a guiding shaft 82, an adjusting screw 83, a pressing piston 84, and an adjusting rod 88. The left side of the mounting tool disc 2 is connected to the guiding shaft 82, and the right side of the mounting tool disc 2 is rotatably connected to the adjusting screw 83. The sliding ring 81 is slidably connected to the guiding shaft 82, and the sliding ring 81 is in threaded cooperation with the adjusting screw 83, so that the rotation of the adjusting screw 83 can drive the sliding ring 81 to move up and down. Four hydraulic channels 85 are evenly spaced along the circumference on the mounting tool disc 2. A communication groove 86 is formed in the middle of the mounting tool disc 2, and the communication groove 86 is communicated with the hydraulic channels 85. A pressing piston 84 is slidably connected in the hydraulic channels 85, and the top of the pressing piston 84 is connected to the sliding ring 81. A plurality of liquid injection grooves 87 are evenly spaced along the circumference on the mounting tool disc 2. Both sides of the liquid injection groove 87 are respectively communicated with the mounting tool groove 4 and the communication groove 86. The number of the liquid injection grooves 87 is the same as that of the mounting tool sleeves 3. An adjusting rod 88 is slidably connected in the liquid injection groove 87. The adjusting rod 88 extends into the mounting guide groove. After the tool bit 100 is installed, the tool bit 100 contacts the adjusting rod 88. The liquid injection grooves 87, the hydraulic channels 85, and the communication groove 86 are all filled with hydraulic oil.

[0040] During the installation process of the tool bit 100, if it is necessary to adjust the length of the tool bit 100 protruding, the adjusting screw 83 can be rotated. When the adjusting screw 83 rotates, it can drive the sliding ring 81 to move up and down through the thread. When the sliding ring 81 moves up and down, it can drive the pressing piston 84 to move up and down. When the pressing piston 84 moves downward, it can squeeze the liquid in the hydraulic channel 85. The liquid in the hydraulic channel 85 will be injected into the liquid injection groove 87 through the communication groove 86. The increase in the liquid in the liquid injection groove 87 will squeeze the adjusting rod 88 to move. When the adjusting rod 88 moves, it can push out the tool bit 100, so that the protruding length of the tool bit 100 is longer. On the contrary, if it is necessary to make the protruding length of the tool bit 100 shorter, it is only necessary to control the pressing piston 84 to move upward. In this way, the protruding length of the tool bit 100 can be adjusted during the installation process of the tool bit 100.

[0041] As Figure 12 As shown in the figure, it further includes a pressing mechanism. The pressing mechanism includes a pressing plate 91 and an elastic member three 92. The pressing plate 91 is slidably connected to the inner side wall of the mounting tool groove 4, and an elastic member three 92 is connected between the pressing plate 91 and the mounting tool groove 4. The elastic member three 92 is a thrust spring.

[0042] When the tool bit 100 is inserted, the tool bit 100 will squeeze the pressing plate 91 to move, and the elastic member three 92 is compressed. After the tool bit is inserted, the elastic member three 92 can apply a pressure to the pressing plate 91, so that the pressing plate 91 abuts against the tool bit 100, avoiding the tool bit 100 from slipping off, and thus being able to initially fix the tool bit 100 after the tool bit 100 is inserted.

[0043] Although embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes may be made therein without departing from the principles and spirit of the invention, and the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A milling cutter that is easy to replace the blade, characterized by: The invention comprises a main shaft (1), a mounting cutter disc (2), a mounting cutter sleeve (3) and a cutter fixing mechanism, wherein the bottom of the main shaft (1) is connected to the mounting cutter disc (2) via a thread, the lower outer portion of the mounting cutter disc (2) is connected to the mounting cutter sleeve (3) at even intervals along the circumferential direction, the mounting cutter sleeve (3) is provided with a mounting cutter groove (4), a cutter head (100) can be installed in the mounting cutter groove (4), and the mounting cutter disc (2) is provided with a cutter fixing mechanism, the cutter fixing mechanism being used to fix the cutter head (100).

2. A milling cutter with easy blade replacement according to claim 1, characterized in that: The tool fixing mechanism comprises a positioning rod (56), a piston plate (55) and an extrusion assembly. A plurality of hydraulic chambers (57) are evenly spaced apart along the circumferential direction at the lower outer side of the mounting tool disc (2). The number of the hydraulic chambers (57) is the same as the number of the mounting tool sleeve (3) and is arranged close to the mounting tool sleeve (3). A piston plate (55) is slidably connected in the hydraulic chamber (57). A plurality of positioning rods (56) are evenly spaced apart and connected to one side of the piston plate (55) close to the mounting tool groove (4). The positioning rods (56) pass through the mounting tool sleeve (3) and extend into the mounting guide groove. An extrusion assembly is provided on the mounting tool disc (2), and the extrusion assembly can drive the piston plate (55) to move.

3. A milling cutter with easy blade replacement according to claim 2, characterized in that: The extrusion assembly comprises a sliding shaft (51), an elastic member 1 (52) and a piston block (53); a liquid guide groove (54) is provided at the top of the hydraulic chamber (57); the top of the liquid guide groove (54) is connected to a mounting groove (58); the sliding shaft (51) is slidably connected in the mounting groove (58); the top of the sliding shaft (51) passes through the mounting cutter disc (2) and slidably cooperates with the mounting cutter disc (2); the bottom of the sliding shaft (51) is connected to the piston block (53); the mounting groove (58), the hydraulic chamber (57) and the liquid guide groove (54) are all filled with hydraulic oil; and an elastic member 1 (52) is connected between the piston block (53) and the top of the mounting groove (58).

4. A milling cutter with easy blade replacement according to claim 3, characterized in that: The invention also comprises a locking mechanism, the locking mechanism comprising a guide rod (61), a positioning block (62) and a second elastic member (63), the guide rod (61) being connected to the middle of the lower part of the main shaft (1), the positioning blocks (62) being slidably connected to both sides of the guide rod (61), and the second elastic member (63) being connected between the positioning block (62) and the main shaft (1).

5. A milling cutter with easy blade replacement according to claim 4, characterized in that: The invention also comprises a synchronous control mechanism, the synchronous control mechanism comprising a fixed disk (71), a rotating sleeve (72) and a contact shaft (74); the fixed disk (71) is connected to the upper outer portion of the mounting cutter disk (2); the outer ring of the fixed disk (71) is rotatably connected to the rotating sleeve (72); a plurality of inclined grooves (73) are evenly spaced along the circumferential direction on the outer side of the rotating sleeve (72); the number of the inclined grooves (73) is the same as the number of the sliding shafts (51); the sliding shaft (51) is connected to the contact shaft (74), and the contact shaft (74) is located in the inclined groove (73).

6. A milling cutter with easy blade replacement according to claim 5, characterized in that: The bottom end of the inclined groove (73) is arranged in a plane, and when the contact shaft (74) moves to the bottom end of the inclined groove (73), the top plane of the contact shaft (74) contacts the plane of the bottom end of the inclined groove (73).

7. A milling cutter with easy blade replacement according to claim 6, characterized in that: A friction washer is arranged on the outer side of the rotating sleeve (72).

8. A milling cutter with easy blade replacement according to claim 7, characterized in that: The utility model also comprises an adjusting mechanism, wherein the adjusting mechanism comprises a sliding ring (81), a guide shaft (82), an adjusting screw (83), an extruding piston (84) and an adjusting rod (88); the installing cutter disc (2) is connected to the guide shaft (82); the installing cutter disc (2) is rotatably connected to the adjusting screw (83); the guiding shaft (82) is slidably connected to the sliding ring (81); the sliding ring (81) and the adjusting screw (83) are threadedly matched; four hydraulic channels (85) are evenly spaced along the circumferential direction on the installing cutter disc (2); a connecting groove (86) is provided in the middle of the installing cutter disc (2); the connecting groove (86) and the hydraulic channel (85) are connected to each other. (85), an extrusion piston (84) is slidably connected in the hydraulic channel (85), and the top of the extrusion piston (84) is connected to the sliding ring (81). A plurality of injection grooves (87) are evenly spaced along the circumferential direction on the mounting cutter disc (2), and the two sides of the injection grooves (87) are respectively connected to the mounting cutter groove (4) and the connecting groove (86). The number of the injection grooves (87) is consistent with the number of the mounting cutter sleeve (3). An adjustment rod (88) is slidably connected in the injection groove (87), and the adjustment rod (88) extends into the mounting guide groove. The injection groove (87), the hydraulic channel (85) and the connecting groove (86) are all filled with hydraulic oil.

9. A milling cutter with easy blade replacement according to claim 8, characterized in that: It also includes a clamping mechanism, which includes a clamping plate (91) and a third elastic member (92). The inner side wall of the installation knife groove (4) is slidably connected to the clamping plate (91), and the third elastic member (92) is connected between the clamping plate (91) and the installation knife groove (4).

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