Milling cutter with replaceable blade

Abstract

The utility model relates to the technical field of milling cutters, and provides a blade-replaceable milling cutter which comprises a cutter post, a connecting groove is formed in the left side of the interior of the cutter post, first sliding grooves are formed in the centers of the two sides of the inner wall of the connecting groove, and first sliding blocks are connected to the inner surfaces of the two first sliding grooves in a sliding mode. A bottom plate is fixedly mounted on the opposite sides of the two first sliding blocks, a pushing block is fixedly mounted on the right side of the bottom plate, a first reset spring is fixedly mounted on the right side of the pushing block, and the other end of the first reset spring is fixedly mounted on the right side of the inner wall of the connecting groove; when in use, through the structures of the connecting groove, the movable rods and the like, the tool bit can be detached and fixed more conveniently, extra tools are not needed, operation is relatively simple, and time and labor are saved.

Description

Technical Field

[0001] The utility model relates to the technical field of milling cutters, in particular to a milling cutter with replaceable blades. Background Art

[0002] A milling cutter is a rotating tool with one or more teeth used for milling processing. When working, each tooth cuts off the excess of the workpiece intermittently in turn. Milling cutters are mainly used to process planes, steps, grooves, forming surfaces and cut off workpieces on milling machines. With the advancement of industrial production, the demand for milling cutters is increasing, and various types of milling cutters are emerging in an endless stream.

[0003] However, when the existing milling cutters are used, the cutter head and the cutter column are usually connected by a threaded method. However, when the cutter is replaced, the process is cumbersome and time-consuming. Specifically, the staff needs to use tools such as wrenches to gradually dismantle the connection. First, they must use tools such as wrenches to loosen the threaded connection between the cutter head and the cutter column, and then rotate the cutter head to separate the cutter head from the cutter column. Next, the cutter head can be disassembled and replaced, which is too time-consuming and labor-intensive. Utility Model Content

[0004] The utility model aims to solve the problem that it is too troublesome to replace the cutter head of the existing milling cutter when it is in use.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a milling cutter with replaceable blade, comprising a tool column, a connecting groove is opened on the inner left side of the tool column, a first sliding groove is opened at the center of both sides of the inner wall of the connecting groove, the inner surfaces of the two first sliding grooves are slidably connected with first sliding blocks, a bottom plate is fixedly installed on the opposite side of the two first sliding blocks, a pushing block is fixedly installed on the right side of the bottom plate, a first return spring is fixedly installed on the right side of the pushing block, the other end of the first return spring is fixedly installed on the right side of the inner wall of the connecting groove, movable rods are movably embedded at both ends of the tool column and located on the right side of the pushing block, pulling blocks are installed on the outer sides of the two movable rods, and second return springs are fixedly installed on the opposite side of the two pulling blocks.

[0006] As a preferred implementation, the inner surfaces of the two second return springs are movably sleeved on the outer surface of the movable rod, and a connecting column is movably embedded in the connecting groove.

[0007] The technical effect of adopting the above further solution is that the movable rod can slide outward and drive the second return spring on the pulling block to extend at the same time.

[0008] As a preferred implementation, the other ends of the two second return springs are fixedly mounted on the outer surface of the knife column, and fixing columns are fixedly mounted at the centers of both sides of the connecting column.

[0009] The technical effect of adopting the above further solution is that the fixed column can slide to the right on the inner surface of the first sliding groove.

[0010] As a preferred implementation, outer surfaces of the two fixing columns are slidably connected to the inner surface of the first sliding groove, and a connecting hole is provided inside the connecting column.

[0011] The technical effect of adopting the above further solution is that the movable rod can be embedded in the interior of the connecting hole, thereby fixing the cutter head and the cutter column.

[0012] As a preferred embodiment, a cutter head is fixedly mounted on the left side of the connecting column, outer surfaces of the two movable rods are movably embedded in the connecting hole, and second sliding grooves are opened at the centers of both sides of the cutter column.

[0013] The technical effect of adopting the above further solution is that the second sliding block can slide downward on the inner surface of the second sliding groove.

[0014] As a preferred implementation, the right sides of the inner surfaces of the two second sliding grooves are slidably connected with second sliding blocks, and the outer sides of the two second sliding blocks are fixedly mounted with outer covers.

[0015] The technical effect of adopting the above further solution is: the outer cover can be pushed to the left, so that the second sliding block slides to the left on the inner surface of the second sliding groove.

[0016] As a preferred implementation, the outer cover is movably sleeved on the outer surface of the knife column, and a threaded hole is opened inside the outer cover.

[0017] The technical effect of adopting the above further solution is that the screw can be rotated inside the threaded hole.

[0018] As a preferred implementation, a screw rod is threadedly connected to the inner surface of the threaded hole, and a crank handle is fixedly mounted on the outer side of the screw rod.

[0019] The technical effect of adopting the above further solution is that the crank can be turned to drive the screw to rotate.

[0020] Compared with the prior art, the advantages and positive effects of the utility model are:

[0021] 1. The utility model, when in use, makes the disassembly and fixing of the cutter head more convenient through the structures such as the connecting groove and the movable rod, without the need for additional tools, and is relatively simple to operate, saving time and effort, thus solving the problem that it is too troublesome to replace the cutter head when the existing milling cutter is in use.

[0022] 2. When the utility model is in use, the second slider and the outer cover are arranged to protect the cutter head when the milling cutter is not needed, thereby reducing the risk of damage to the cutter head and extending the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A schematic diagram of the rear-view stereoscopic structure of a milling cutter with replaceable blades provided by the utility model;

[0024] Figure 2 A schematic diagram of a cutter column of a milling cutter with replaceable blade provided by the utility model Figure 1 ;

[0025] Figure 3 A schematic diagram of a cutter column of a milling cutter with replaceable blade provided by the utility model Figure 2 ;

[0026] Figure 4 The utility model provides a schematic diagram of the cutaway three-dimensional structure of the outer cover of a milling cutter with replaceable blades.

[0027] Legend:

[0028] 1. Knife column; 101. Connecting groove; 102. First sliding groove; 103. First sliding block; 104. Bottom plate; 105. Push block; 106. First return spring; 107. Movable rod; 108. Pull block; 109. Second return spring; 110. Connecting column; 111. Fixed column; 112. Connecting hole; 113. Knife head; 2. Second sliding groove; 201. Second sliding block; 202. Outer cover; 203. Threaded hole; 204. Screw; 205. Crank handle. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] Example 1, please refer to Figure 1-4The utility model provides a technical solution: a milling cutter with replaceable blade, comprising a tool column 1, a connecting groove 101 is opened on the left side of the inside of the tool column 1, first sliding grooves 102 are opened at the center of both sides of the inner wall of the connecting groove 101, the inner surfaces of the two first sliding grooves 102 are slidably connected with first sliding blocks 103, a bottom plate 104 is fixedly installed on the opposite side of the two first sliding blocks 103, a pushing block 105 is fixedly installed on the right side of the bottom plate 104, a first return spring 106 is fixedly installed on the right side of the pushing block 105, and the other end of the first return spring 106 is fixedly installed on the right side of the inner wall of the connecting groove 101, and movable rods 107 are movably embedded at both ends of the tool column 1 and located on the right side of the pushing block 105, and the outer sides of the two movable rods 107 A pulling block 108 is installed on each of the two pulling blocks 108, and a second return spring 109 is fixedly installed on the opposite side of the two pulling blocks 108. The inner surfaces of the two second return springs 109 are movably sleeved on the outer surface of the movable rod 107. A connecting column 110 is movably embedded in the interior of the connecting groove 101. The other ends of the two second return springs 109 are fixedly installed on the outer surface of the knife column 1. Fixed columns 111 are fixedly installed at the centers of both sides of the connecting column 110. The outer surfaces of the two fixed columns 111 are slidably connected to the inner surface of the first slide groove 102. A connecting hole 112 is opened inside the connecting column 110, and a cutter head 113 is fixedly installed on the left side of the connecting column 110. The outer surfaces of the two movable rods 107 are movably embedded in the interior of the connecting hole 112.

[0031] In this embodiment, first pick up the cutter head 113, embed the connecting column 110 into the interior of the connecting groove 101 and locate it on the left side of the bottom plate 104, then make the fixed column 111 synchronously embed into the inner surface of the first slide groove 102, and then push the cutter head 113 to the right, so that the connecting column 110 pushes the bottom plate 104 to slide to the right, driving the fixed column 111 and the first sliding block 103 to slide to the right on the inner surface of the first slide groove 102, and then the bottom plate 104 drives the pushing block 105 to move to the right synchronously, so that the first return spring 106 contracts. When the pushing block 105 moves to the right, it squeezes the movable rod 107 to slide outward, and at the same time drives the second return spring 109 on the pulling block 108 to extend. When the connecting column 110 moves to the right to a certain extent inside the connecting groove 101, the second return spring 109 will be extended. 9 is reset, thereby driving the pulling block 108 and the movable rod 107 to slide inward synchronously, so that the movable rod 107 is embedded in the connecting hole 112, thereby fixing the cutter head 113 and the knife column 1. When the cutter head 113 needs to be disassembled, the pulling block 108 can be pulled outward to drive the movable rod 107 to move outward synchronously, and at the same time, the second reset spring 109 is extended, thereby disengaging the movable rod 107 from the connecting hole 112, and resetting the first reset spring 106, thereby pushing the pushing block 105 and the bottom plate 104 to the left, so that the connecting column 110 is disengaged from the connecting groove 101, and the cutter head 113 is disassembled. Through the structures such as the connecting groove 101 and the movable rod 107, the disassembly and fixing operations of the cutter head 113 are more convenient, no additional tools are required, the operation is relatively simple, and time and labor are saved.

[0032] Embodiment 2, as Figure 1-4 As shown, second sliding grooves 2 are provided at the centers of both sides of the knife column 1, and second sliding blocks 201 are slidably connected to the right sides of the inner surfaces of the two second sliding grooves 2. Outer covers 202 are fixedly installed on the outer sides of the two second sliding blocks 201. The outer covers 202 are movably sleeved on the outer surface of the knife column 1. A threaded hole 203 is provided inside the outer cover 202. A screw 204 is threadedly connected to the inner surface of the threaded hole 203, and a crank 205 is fixedly installed on the outer side of the screw 204.

[0033] In this embodiment, when the milling cutter is no longer needed for processing, the crank handle 205 can be reversed to drive the screw rod 204 to rotate inside the threaded hole 203, so that one end of the screw rod 204 is away from the tool column 1, and then the outer cover 202 is pushed to the left, so that the second slider 201 slides to the left on the inner surface of the second slide groove 2, and then the outer cover 202 slides to the left and is mounted on the cutter head 113 to protect the cutter head 113. After the outer cover 202 slides to a suitable position, the crank handle 205 can be turned forward to make one end of the screw rod 204 fit the cutter column 1 again for fixation. Moreover, through the arrangement of the second slider 201 and the outer cover 202, the cutter head 113 can be protected when the milling cutter is not needed, thereby reducing the risk of damage to the cutter head 113 and extending its service life.

[0034] Working principle: first pick up the cutter head 113, embed the connecting column 110 into the inside of the connecting groove 101 and locate it on the left side of the bottom plate 104, then make the fixed column 111 synchronously embedded into the inner surface of the first slide groove 102, and then push the cutter head 113 to the right, so that the connecting column 110 pushes the bottom plate 104 to slide to the right, driving the fixed column 111 and the first slider 103 to slide to the right on the inner surface of the first slide groove 102, and then the bottom plate 104 drives the pushing block 105 to move to the right synchronously, so that the first return spring 106 contracts, and when the pushing block 105 moves to the right, it squeezes the movable rod 107 to slide outward, and at the same time drives the second return spring 109 on the pulling block 108 to extend, and when the connecting column 110 moves to the right to a certain extent inside the connecting groove 101, the second return spring 109 will be The first reset spring 106 is reset, and the push block 105 and the bottom plate 104 are pushed to the left, so that the connecting column 110 is separated from the connecting groove 101, and the cutter head 113 is disassembled. Through the structures such as the connecting groove 101 and the movable rod 107, the disassembly and fixing operations of the cutter head 113 are more convenient, without the need for additional tools, and the operation is relatively simple, saving time and effort. During use, when the milling cutter is no longer needed for processing, the crank handle 205 can be reversed to drive the screw rod 204 to rotate inside the threaded hole 203, so that one end of the screw rod 204 is away from the tool column 1, and then the outer cover 202 is pushed to the left, so that the second slider 201 slides to the left on the inner surface of the second slide groove 2, and then the outer cover 202 slides to the left and is sleeved on the cutter head 113 to protect the cutter head 113. After the outer cover 202 slides to a suitable position, the crank handle 205 can be turned forward to make one end of the screw rod 204 fit the cutter column 1 again for fixation. Moreover, through the arrangement of the second slider 201 and the outer cover 202, the cutter head 113 can be protected when the milling cutter is not needed, thereby reducing the risk of damage to the cutter head 113 and extending its service life.

[0035] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A milling cutter with replaceable blade, comprising a cutter column (1), characterized in that: A connecting groove (101) is provided on the left side of the interior of the knife column (1), and first sliding grooves (102) are provided at the centers of both sides of the inner wall of the connecting groove (101), and the inner surfaces of the two first sliding grooves (102) are slidably connected with first sliding blocks (103), and the opposite sides of the two first sliding blocks (103) are fixedly installed with a bottom plate (104), and the right side of the bottom plate (104) is fixedly installed with a pushing block (105), and the right side of the pushing block (105) is fixedly installed with a first return spring (106), and the other end of the first return spring (106) is fixedly installed on the right side of the inner wall of the connecting groove (101), and movable rods (107) are movably embedded at both ends of the knife column (1) and located on the right side of the pushing block (105), and the outer sides of the two movable rods (107) are installed with pulling blocks (108), and the opposite sides of the two pulling blocks (108) are fixedly installed with second return springs (109).

2. A milling cutter with replaceable blade according to claim 1, characterized in that: The inner surfaces of the two second return springs (109) are movably sleeved on the outer surface of the movable rod (107), and a connecting column (110) is movably embedded in the interior of the connecting groove (101).

3. A milling cutter with replaceable blade according to claim 2, characterized in that: The other ends of the two second return springs (109) are fixedly mounted on the outer surface of the knife column (1), and fixed columns (111) are fixedly mounted at the centers of both sides of the connecting column (110).

4. A milling cutter with replaceable blade according to claim 3, characterized in that: The outer surfaces of the two fixing columns (111) are slidably connected to the inner surface of the first sliding groove (102), and a connecting hole (112) is provided inside the connecting column (110).

5. A milling cutter with replaceable blade according to claim 4, characterized in that: A cutter head (113) is fixedly mounted on the left side of the connecting column (110), the outer surfaces of the two movable rods (107) are movably embedded in the interior of the connecting hole (112), and second sliding grooves (2) are provided at the center of both sides of the cutter column (1).

6. A milling cutter with replaceable blade according to claim 5, characterized in that: The right sides of the inner surfaces of the two second sliding grooves (2) are both slidably connected with second sliding blocks (201), and the outer sides of the two second sliding blocks (201) are both fixedly mounted with outer covers (202).

7. A milling cutter with replaceable blade according to claim 6, characterized in that: The outer cover (202) is movably sleeved on the outer surface of the knife column (1), and a threaded hole (203) is provided inside the outer cover (202).

8. A milling cutter with replaceable blade according to claim 7, characterized in that: The inner surface of the threaded hole (203) is threadedly connected with a screw rod (204), and the outer side of the screw rod (204) is fixedly mounted with a crank (205).

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