A connection structure and a split milling cutter disc using the connection structure

Abstract

The present application relates to a connection structure and a split milling cutter disc using the connection structure, and relates to the technical field of cutter discs. The split milling cutter disc comprises a cutter disc main body, a cutter seat and a connection structure, the connection structure comprises a connection piece, the connection piece is used to connect the cutter disc main body and the cutter seat, a card slot is provided in both the cutter disc main body and the cutter seat, the connection piece comprises a connection body, the connection body is carded in the card slot, a fixed hook plate is installed on the bottom wall of the card slot, a connection hook plate is fixedly provided on the end of the connection body for carding, the connection hook plate is hung with the fixed hook plate, a baffle is fixed on the fixed hook plate, and is used to limit the sliding of the connection hook plate along the length direction of the fixed hook plate; the connection piece is carded with the cutter disc main body and the cutter seat, and through the hanging effect of the fixed hook plate and the connection hook plate and the limiting effect of the baffle, the axial, radial and circumferential directions between the connection piece and the cutter disc main body and the cutter seat are restricted, thereby playing a role of connection and fixing, reducing the use of bolts, and improving the efficiency of disassembly and assembly.

Description

Technical Field

[0001] The present application relates to the field of cutter discs, and in particular to a connection structure and a split milling cutter disc using the connection structure. Background Art

[0002] In industrial production, tooth profiles are generally machined using the mold forming method or the copying method. However, the tooth profiles of some large workpieces are large in size, diverse in shape, and require high precision. Existing cutting tools are difficult to directly machine high-precision large-size tooth profiles, and usually require multiple replacements of different cutter discs to machine a complete tooth profile.

[0003] In the prior art, a split milling cutter disc is used to process large-size gears. The split milling cutter disc is assembled and installed by a large number of bolts. Not only does it take a long time to disassemble and assemble, and the installation efficiency is low, but also during the rotation of the milling cutter disc, some bolts will be subjected to large shear forces and are prone to deformation, making it difficult or even impossible to disassemble the milling cutter disc. Summary of the invention

[0004] In order to solve the problem that bolt connections in a split milling cutter disc have low installation efficiency and are easy to deform, making disassembly difficult, the present application provides a connection structure and a split milling cutter disc using the connection structure.

[0005] A connection structure provided in this application adopts the following technical solution:

[0006] A connection structure includes a connecting piece, which is used to connect two connecting parts. A slot is provided in the connecting part. The connecting piece includes a connecting body, which is clamped in the slot. A fixed hook plate is installed on the bottom wall of the slot. A connecting hook plate is fixedly provided on the end of the connecting body for clamping. The connecting hook plate is hung with the fixed hook plate. A baffle is fixedly provided on the fixed hook plate to limit the sliding of the connecting hook plate along the length direction of the fixed hook plate.

[0007] By adopting the above technical solution, the connecting piece and the connecting part are connected with the connecting body through the slot, so as to limit the translational movement of the connecting piece and the connecting part along the width direction of the slot; and the fixed hook plate is hung with the connecting hook plate, so as to limit the translational movement of the connecting body along the depth direction of the slot; and a baffle is arranged on the fixed hook plate to limit the relative slippage between the connecting hook plate and the fixed hook plate, and limit the translational movement of the connecting body along the length direction of the slot, thereby playing the role of connecting and fixing the connecting piece and the connecting part, reducing the use of bolts and improving the disassembly and assembly efficiency.

[0008] Further preferably, a bottom plate is installed on the bottom wall of the slot, and the fixed hook plate and the baffle plate are fixedly installed on the bottom plate.

[0009] By adopting the above technical solution, the bottom plate is installed on the bottom wall of the slot, so that the installation of the fixed hook plate and the baffle can be realized, thereby facilitating the installation of the fixed hook plate.

[0010] Further preferably, an avoidance groove is provided on the connecting hook plate.

[0011] By adopting the above technical solution, when the connecting hook plate is hooked with the fixed hook plate, the avoidance groove is stuck at the baffle plate to avoid interference between the connecting hook plate and the baffle plate, and can limit the connecting hook plate to avoid slippage when the connecting hook plate is hooked with the fixed hook plate.

[0012] Further preferably, a guide slide groove is provided on a side wall of the card slot, a guide slide block is fixedly provided on the baffle plate, and the guide slide block is slidably connected to the guide slide groove.

[0013] By adopting the above technical scheme, the bottom plate is conveniently installed on the bottom wall of the card slot through the sliding connection of the guide slider and the guide slot, and when installing the card connection body, the avoidance slot on the connecting hook plate is aligned with the guide slot, so that the avoidance slot can be stuck on the baffle plate, avoiding the baffle plate from interfering with the installation of the connecting hook plate and the fixed hook plate, thereby improving the installation efficiency.

[0014] The present application provides a split milling cutter disc adopting the following technical solution:

[0015] A split milling cutter disc comprises a cutter disc body, a cutter seat and the above-mentioned connecting structure, wherein the cutter disc body and the cutter seat are provided with a connecting portion in the above-mentioned connecting structure.

[0016] By adopting the above technical solution, the connection structure connects the cutter disc body and the cutter seat by means of snap connection and hanging, which is convenient for disassembly and assembly, reduces the use of bolt connections, and can also share the shear force on the bolts by snap connection and hanging, avoiding large deformation of the bolts that makes disassembly of the milling cutter disc difficult.

[0017] Further preferably, the connecting member also includes a fixing plate and a supporting plate, the supporting plate is fixedly connected between the fixing plate and the connecting body, the connecting body, the supporting plate and the fixing plate form two U-shaped grooves, and the two U-shaped grooves respectively clamp the cutter disc body and the cutter seat.

[0018] By adopting the above technical solution, the connecting piece forms two U-shaped grooves to clamp the cutter disc body and the cutter seat through the connection of the connecting body, the support plate and the fixed plate, and cooperates with the clamping effect of the clamping groove on the connecting body to improve the direct clamping effect of the cutter disc body, the connecting piece and the cutter seat.

[0019] Further preferably, the fixing plate is fixedly connected to the cutter disc body and the cutter seat by bolts.

[0020] By adopting the above technical solution, the fixing plate is fixedly connected to the cutter disc body and the cutter seat by bolts, and the connection effect is enhanced by the hanging connection between the connecting hook plate and the fixed hook plate. The hanging connection between the connecting hook plate and the fixed hook plate can reduce the shear force borne by the bolts and avoid deformation of the bolts.

[0021] It is further preferred that the knife seat and the connecting piece are both arc-shaped along the length direction, and the centers of the knife disc body, the knife seat and the connecting piece coincide after installation.

[0022] By adopting the above technical solution, the centers of the cutter disc body, the connecting piece and the cutter seat coincide with each other after installation and connection, which is convenient for dynamic balance adjustment.

[0023] It is further preferred that the curvature of the tool holder is not greater than 180° and at least two of them are provided, and the curvature of the connecting piece is not greater than 180° and at least two of them are provided.

[0024] By adopting the above technical solution, the arc of the tool holder and the connecting piece is no more than 180°, which facilitates the installation of the connecting piece and the tool holder on the cutter disc body. At least two tool holders and connecting pieces are provided, which facilitates the symmetrical arrangement around the center of the cutter disc body and the dynamic balance adjustment.

[0025] It is further preferred that the connecting body is hollow.

[0026] By adopting the above technical solution, a hollow structure is provided inside the connecting body, thereby making the entire milling cutter disc lighter.

[0027] In summary, the present application includes at least one of the following beneficial technical effects:

[0028] 1. In the present application, the connecting piece is clamped with the cutter disc body and the cutter seat, and the connecting piece is restricted in the axial, radial and circumferential directions by the hooking effect of the fixing hook plate and the connecting hook plate, and the limiting effect of the baffle plate, so as to play the role of connection and fixing, reduce the use of bolts, and improve the efficiency of disassembly and assembly;

[0029] 2. In the further configuration of the present application, the fixed hook plate and the baffle are both installed on the base plate, and the base plate is installed by means of a guide slide block and a guide groove for guiding installation to avoid tilting during installation which may cause the fixed hook plate to be unable to connect with the connecting hook plate. In addition, the guide groove also facilitates the alignment of the avoidance groove on the connecting hook plate, thereby facilitating the connection of the connecting hook plate with the fixed hook plate and the baffle, thereby improving installation efficiency.

[0030] 3. In a further configuration of the present application, the connecting piece and the cutter seat are arranged in an arc shape with an arc not exceeding 180°, so that the connecting piece and the cutter seat can be radially installed on the cutter disc body, and the entire milling cutter disc is disc-shaped, which is convenient for dynamic balance adjustment.

[0031] 4. In the further configuration of the present application, bolts are connected between the fixed plate in the connecting piece and the cutter disc body and the cutter seat to improve the connection effect between the connecting piece and the cutter disc body and the cutter seat, and the hanging effect of the fixed hook plate and the connecting hook plate and the limiting effect of the baffle can reduce the shear force on the bolts, thereby avoiding large deformation of the bolts and making them unable to be disassembled. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic front view of a split milling cutter disc;

[0033] Figure 2 yes Figure 1 Cross-section of the AA in the exploded state;

[0034] Figure 3 It is a schematic diagram of the structure of the connector;

[0035] Figure 4 It is a structural diagram of the knife holder.

[0036] Figure 5 yes Figure 3 A schematic diagram of the enlarged structure of B;

[0037] Figure 6 It is a structural schematic diagram of the cutter disc body;

[0038] Figure 7 yes Figure 2 Schematic diagram of the enlarged structure of D in the middle;

[0039] Figure 8 yes Figure 7 A schematic diagram of the structure in the assembled state;

[0040] Fig. 9 It is a structural schematic diagram in which a fixed hook plate, a baffle plate and a guide slide block are installed on a base plate.

[0041] Fig.10 yes Figure 2 Schematic diagram of the structure of CC;

[0042] Explanation of the accompanying drawings: 1. Cutter body; 2. Cutter seat; 3. Connecting piece; 4. First clamping mechanism; 5. Second clamping mechanism; 11. Threaded hole; 12. Connecting hole; 13. Clamping slot; 14. Guide slide slot; 31. Countersunk slot; 32. Fixed plate; 33. Support plate; 34. Connecting body; 35. Connecting hook plate; 36. Avoidance slot; 37. U-shaped slot; 41. Fixed hook plate; 42. Baffle; 43. Bottom plate; 44. Through slot; 45. Guide slide block; 51. First mounting plate; 52. Second mounting plate; 53. Fixed pawl; 54. Rotating pawl. DETAILED DESCRIPTION

[0043] The following is combined with Figure 1-10 This application is described in further detail.

[0044] The present application embodiment discloses a split milling cutter disc. Figure 1-2The split milling cutter disc includes a cutter disc main body 1 connected to the machine tool spindle, a cutter seat 2 for mounting a blade, and a connecting structure connecting the cutter disc main body 1 and the cutter seat 2, wherein the connecting structure includes a connecting piece 3, wherein the cutter disc main body 1 is in the shape of a disc, the cutter seat 2 and the connecting piece 3 are in an arc shape as a whole, and after installation, the centers of the cutter disc main body 1, the cutter seat 2 and the connecting piece 3 coincide, which facilitates the dynamic balance adjustment of the entire milling cutter disc.

[0045] In addition, as attached Figure 3-4 , at least two blade seats 2 and connecting members 3 are provided, and their arcs are not greater than 180°. In this embodiment, two connecting members 3 are provided, and their arcs are both 180°; four blade seats 2 are provided, of which two have arcs of 45° and the other two have arcs of 135°, so that the angles formed by the two connecting members 3 and the four blade seats 2 after installation are all 360°, covering the circumferential surface of the blade disc body 1, so as to facilitate installation on the blade disc body 1 and facilitate dynamic balance adjustment.

[0046] As attached Figure 4-6 The cutter body 1 and the cutter seat 2 are both provided with a slot 13, the slot 13 on the cutter body 1 is arranged on the outer peripheral surface, and the slot 13 on the cutter seat 2 is arranged at the inner arc end, the connecting member 3 includes a connecting body 34, a supporting plate 33 and a fixing plate 32, and the upper and lower ends of the connecting body 34 are respectively connected to the slots 13 on the cutter body 1 and the cutter seat 2, so as to limit the axial movement of the cutter body 1 and the cutter seat 2;

[0047] The supporting plates 33 are fixedly installed on both side ends of the connecting body 34, and the fixing plate 32 is fixedly installed on one end of the supporting plate 33 away from the connecting body 34. The supporting plate 33 is fixed to the middle part of the fixing plate 32, and two U-shaped grooves 37 symmetrically formed between the connecting body 34 and the supporting plate 33 and the fixing plate 32 on the same side are formed. Then, the connecting body 34 and the supporting plates 33 and the fixing plates 32 on both sides form a total of four U-shaped grooves 37. The entity parts on both sides of the slot 13 in the tool holder 2 are snapped into the two U-shaped grooves 37 on the upper side, and the entity parts on both sides of the slot 13 in the cutter disc body 1 are snapped into the two U-shaped grooves 37 on the lower side, and cooperate with the connection between the connecting body 34 and the slot 13 to improve the snapping effect between the connecting member 3 and the cutter disc body 1 and the tool holder 2. The connecting body 34 is hollow and the entire milling cutter disc is lightweight.

[0048] Two countersunk grooves 31 are formed in the fixing plate 32, and the two countersunk grooves 31 are respectively located on both sides of the connection between the support plate 33 and the fixing plate 32. Threaded holes 11 are formed on the side end surfaces of the tool holder 2 and the tool disc body 1. The countersunk grooves 31 and the threaded holes 11 are connected by bolts to fix the connecting piece 3 to the tool holder 2 and the tool disc body 1, thereby limiting the radial and circumferential movement of the tool disc body 1 and the tool holder 2.

[0049] As attached Figure 7-8In order to reduce the shear force on the bolts between the fixing plate 32 and the cutter seat 2 and the cutter body 1 during the rotation of the milling cutter disc, the present application provides two embodiments of the clamping mechanism, the clamping structure is arranged between the connecting body 34 and the cutter seat 2 and the cutter disc body 1, and the clamping structure between the cutter disc body 1 and the connecting body 34 is specifically described here, and the clamping structure between the cutter seat 2 and the connecting body 34 is the same, wherein the first clamping mechanism 4 of the embodiment of the present application is as follows:

[0050] As attached Fig. 9 A bottom plate 43 is provided at the bottom of the slot 13 of the cutter head body 1, and two fixed hook plates 41 are fixed on the bottom plate 43, and the two fixed hook plates 41 face opposite to each other. Two connecting hook plates 35 are provided on the end of the connecting body 34 inserted into the slot 13, and the two connecting hook plates 35 face opposite to each other, and the connecting hook plates 35 can be elastically deformed. When the connecting body 34 is inserted into the slot 13, it is convenient to hang the connecting hook plates 35 and the fixed hook plates 41. Through the hanging effect of the connecting hook plates 35 and the fixed hook plates 41, the radial movement between the cutter head body 1 and the connecting member 3 is limited, thereby reducing the shear force on the bolts between the fixed plate 32 and the cutter head body 1 in the radial direction;

[0051] A baffle plate 42 is provided on the hook side of the fixed hook plate 41, and an escape groove 36 is provided on the connecting hook plate 35. When the connecting hook plate 35 is connected to the fixed hook plate 41, the baffle plate 42 is inserted into the escape groove 36, so that the connecting hook plate 35 is restricted from sliding along the length direction of the fixed hook plate 41 by the baffle plate 42, that is, the circumferential sliding of the connecting member 3 and the cutter head body 1 is restricted, so that the shear force on the bolts between the fixed plate 32 and the cutter head body 1 in the circumferential direction can be reduced;

[0052] Similarly, the knife seat 2 and the connecting member 3 are also connected by connecting the hook plate 35 and the fixed hook plate 41 to reduce the shear force on the bolts between the fixed plate 32 and the knife seat 2 in the radial direction. The clamping effect of the baffle plate 42 and the avoidance groove 36 can reduce the shear force on the bolts between the fixed plate 32 and the knife seat 2 in the circumferential direction.

[0053] A through slot 44 is formed on the bottom plate 43, and a connecting hole 12 is formed at the bottom of the slot 13. The through slot 44 and the connecting hole 12 are connected by bolts. The bolts are used to fix the bottom plate 43 to the bottom of the slot 13 without being subjected to shear force or deformation. In addition, in order to facilitate installation, the bottom plate 43 is arc-shaped with an arc of 180°, and two bottom plates 43 are provided to cover the bottom of the slot 13.

[0054] A plurality of radial guide grooves 14 are provided on both side walls of the slot 13, and guide slide blocks 45 are fixed on both baffles 42, which can be slidably connected with the guide grooves 14 on the corresponding side. When the bottom plate 43 is installed into the slot 13, the guide slide block 45 extends into the guide groove 14, thereby guiding the sliding of the bottom plate 43 and preventing the bottom plate 43 from tilting. In addition, when the connecting body 34 is inserted into the slot 13, the avoidance groove 36 on the connecting hook plate 35 is aligned with the guide groove 14 connected with the guide slide block 45, so as to facilitate the insertion of the baffle 42 into the avoidance groove 36, thereby improving the clamping efficiency of the connecting member 3;

[0055] During disassembly, after removing the bolts between the connecting member 3 and the tool holder 2 and the tool disc body 1, a radial force is applied to the tool holder 2 to disengage the connecting hook plate 35 from the fixed hook plate 41, thereby separating the tool holder 2 from the connecting member 3. Similarly, a radial force is applied to the tool disc body 1 to disengage the connecting hook plate 35 from the fixed hook plate 41, thereby separating the tool disc body 1 from the connecting member 3.

[0056] The second clamping mechanism 5 of the embodiment of the present application is as follows:

[0057] As attached Fig.10 A first mounting plate 51 is fixedly provided on the bottom wall of the card slot 13, and a second mounting plate 52 is fixedly provided on the end portion to which the connecting body 34 is clamped. A fixed pawl 53 is provided on the first mounting plate 51, and a twistable rotating pawl 54 is provided on the second mounting plate 52. Only partial areas on the first mounting plate 51 and the second mounting plate 52 are used to install the fixed pawl 53 and the rotating pawl 54, so that the rotating pawl 54 can be connected and disconnected with the fixed pawl 53, and a one-way connection is achieved between the fixed pawl 53 and the rotating pawl 54.

[0058] The direction of the rotating pawl 54 is the same as the direction of the blade on the tool holder 2, and the rotation direction of the rotating pawl 54 is also the same as the direction of the blade, that is, when the milling cutter disc turns in the same direction as the blade, the fixed pawl 53 is connected to the rotating pawl 54, and limits the circumferential movement between the connecting member 3 and the tool holder body 1 and the tool holder 2, and the connection between the fixed pawl 53 and the rotating pawl 54 can also limit the radial movement between the connecting member 3 and the tool holder body 1 and the tool holder 2.

[0059] During disassembly, after removing the bolts between the connecting piece 3 and the cutter seat 2 and the cutter disc body 1, a circumferential force is applied to the cutter seat 2 in the direction opposite to the direction of rotation of the milling cutter disc, so that the fixed pawl 53 and the rotating pawl 54 are disengaged, and the cutter seat 2 and the connecting piece 3 are separated. Similarly, a circumferential force is applied to the cutter disc body 1 in the direction opposite to the direction of rotation of the milling cutter disc, so that the fixed pawl 53 and the rotating pawl 54 are disengaged, and the cutter disc body 1 and the connecting piece 3 are separated.

[0060] In the third embodiment of the present application, the clamping mechanisms of the above two embodiments are respectively used between the cutter seat 2, the cutter disc body 1 and the connecting member 3.

[0061] The implementation principle of a split milling cutter disc in the third embodiment of the present application is:

[0062] The cutter head body 1 and the connecting member 3 are connected via the clamping mechanism in the first embodiment, and the cutter seat 2 and the connecting member 3 are connected via the clamping mechanism in the second embodiment.

[0063] First, install the two bottom plates 43 into the bottom of the slot 13 in the cutter head body 1, and fix the bottom plates 43 to the bottom of the slot 13 by bolts. During the installation of the bottom plates 43, the guide slide blocks 45 on both sides are respectively connected with the guide slide grooves 14 on both sides in a sliding manner to guide the bottom plates 43, so as to prevent the bottom plates 43 from being installed in the slot 13 at an angle, causing the fixed hook plate 41 installed on the bottom plates 43 to also be inclined and unable to be hooked with the connecting hook plate 35.

[0064] Secondly, insert one end of the connecting body 34 provided with the connecting hook plate 35 into the card slot 13 for card connection. Before installation and insertion, align the avoidance groove 36 on the connecting hook plate 35 with the guide slide groove 14 connected with the guide slide 45, so that the connecting hook plate 35 is hooked with the fixed hook plate 41, and the baffle plate 42 can be clipped into the avoidance groove 36 to avoid interference between the baffle plate 42 and the connecting hook plate 35 and affect the hooking; during the installation and insertion process, the solid parts on both sides of the card slot 13 on the cutter head body 1 are simultaneously clipped into the two U-shaped grooves 37 on the lower side, so as to improve the card connection effect between the connecting member 3 and the cutter head body 1.

[0065] Then, the cutter head body 1 is installed on the main shaft of the machine tool.

[0066] Then, a first mounting plate 51 is installed at the end of the connecting body 34 away from the connecting hook plate 35, and the fixed pawl 53 on the first mounting plate 51 is in the opposite direction to the direction of the machine tool spindle; a second mounting plate 52 is installed at the bottom of the slot 13 on the tool holder 2, and the rotating pawl 54 on the second mounting plate 52 is in the same direction as the direction of the machine tool spindle. For processing, the direction of the blade on the tool holder 2 is the same as the direction of the machine tool spindle, that is, the rotating pawl 54 is in the same direction as the blade, and the fixed pawl 53 is in the opposite direction to the blade. During the processing, the blade is subjected to the reaction force of the work. At this time, under the connection between the fixed pawl 53 and the rotating pawl 54, relative rotation between the tool holder 2 and the connecting member 3 can be avoided during the processing.

[0067] Finally, the fixing plate 32 in the connecting member 3 is fixedly connected to the cutter seat 2 and the cutter disc body 1 by bolts, and the first clamping mechanism 4 and the second clamping mechanism 5 can also withstand radial force and circumferential force, thereby reducing the shear force borne by the bolts and avoiding large deformation.

[0068] During disassembly, first remove the bolts between the fixed plate 32 and the tool holder 2 and the tool disc body 1, then rotate the tool holder 2 in the direction opposite to the direction of the blade to disengage the fixed pawl 53 from the connecting pawl, and then the tool holder 2 can be separated from the connecting member 3; at this time, pull the connecting member 3 to disengage the connecting hook plate 35 from the fixed hook plate 41 to separate the tool disc body 1 and the connecting member 3; finally, remove the bolts between the bottom plate 43 and the bottom of the slot 13 to separate it from the tool disc body 1. The number of bolts used in the entire milling cutter disc is relatively small, and disassembly is convenient and quick.

[0069] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A split milling cutter disc, characterized in that: The invention comprises a blade disc body (1), a blade seat (2) and a connection structure, wherein the connection structure comprises a connection piece (3), the connection piece (3) is used to connect two connection parts, and is characterized in that: a slot (13) is provided in the connection part, the connection piece (3) comprises a connection body (34), the connection body (34) is clamped in the slot (13), a fixed hook plate (41) is installed on the bottom wall of the slot (13), a connection hook plate (35) is fixedly provided on the end of the connection body (34) for clamping, the connection hook plate (35) is hung with the fixed hook plate (41), and a baffle (42) is fixedly provided on the fixed hook plate (41) for limiting the sliding of the connection hook plate (35) along the length direction of the fixed hook plate (41); the blade disc body (1) and the blade seat (2) are the connection parts; The connecting member (3) further comprises a fixing plate (32) and a supporting plate (33); the supporting plate (33) is fixedly connected between the fixing plate (32) and the connecting body (34); the connecting body (34), the supporting plate (33) and the fixing plate (32) form two U-shaped grooves (37); the two U-shaped grooves (37) respectively clamp the cutter head body (1) and the cutter seat (2); The fixing plate (32) is fixedly connected to the cutter disc body (1) and the cutter seat (2) by means of bolts.

2. A split milling cutter disc according to claim 1, characterized in that: A bottom plate (43) is installed on the bottom wall of the card slot (13), and the fixed hook plate (41) and the baffle plate (42) are fixedly installed on the bottom plate (43).

3. A split milling cutter disc according to claim 1 or 2, characterized in that: The connecting hook plate (35) is provided with an avoidance groove (36).

4. A split milling cutter disc according to claim 3, characterized in that: A guide slide groove (14) is provided on the side wall of the clamping groove (13), a guide slide block (45) is fixedly provided on the baffle plate (42), and the guide slide block (45) is slidably connected to the guide slide groove (14).

5. The split milling cutter disc according to claim 1, characterized in that: The blade seat (2) and the connecting member (3) are both arc-shaped along the length direction, and the centers of the blade disc body (1), the blade seat (2) and the connecting member (3) coincide with each other after installation.

6. A split milling cutter disc according to claim 5, characterized in that: The blade seat (2) has an arc of no more than 180° and at least two blade seats are provided, and the connecting piece (3) has an arc of no more than 180° and at least two connecting pieces are provided.

7. The split milling cutter disc according to claim 1, characterized in that: The connecting body (34) is hollow inside.

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