Milling cutter with exchange function

Abstract

The utility model discloses a milling cutter with replacement function relates to milling cutter technical field, including milling cutter pole and milling cutter edge, the top of milling cutter pole is provided with replacement mechanism, the top fixed setting of milling cutter pole has the fixed link, the number of milling cutter edge is many. This milling cutter with replacement function, when needing replacing certain milling cutter edge, will move the rod and install the rod apart, and can make gear rotate and restrict the rod downward movement through the downward movement of install the rod, in the rotation of gear, can make rectangular pole and milling cutter edge apart, also can with milling cutter edge apart through the downward movement of restrict the rod, when replacing all, make all rectangular pole and restrict the rod move through the downward movement of ring, also can carry out milling cutter edge and replace, thereby can replace according to the different situation of milling cutter edge, improved the functionality.

Description

Technical Field

[0001] This utility model relates to the field of milling cutter technology, specifically to a milling cutter with a replaceable function. Background Technology

[0002] A milling cutter is a cutting tool used for milling operations. It is widely used in the field of machining. Milling cutters are mainly used on milling machines and other machining equipment to perform milling operations on workpieces. They can complete a variety of machining tasks such as plane milling, groove milling, contour milling, and gear milling. They can accurately machine parts of various shapes and sizes and play an important role in industries such as machinery manufacturing, automobiles, aerospace, and mold making.

[0003] According to patent application number CN202221995464.7, this utility model provides a cylindrical milling cutter with replaceable cutting edges. The utility model has a reasonable structure, which makes it convenient to install, fix or disassemble the milling cutter inserts, and the connection is stable. In use, if the cutting edge is worn or damaged, it may be that a certain cutting edge needs to be replaced, or the cutting edge is generally worn and all cutting edges need to be replaced. Both situations can occur, but existing milling cutters cannot meet the problem of efficiently replacing one or all cutting edges.

[0004] Further searching patent application number CN202221889955.3 reveals a milling cutter with easily replaceable cutting edges. The advantages of this invention are: a pressure spring is nested within the locking screw of the milling cutter; the spring force compresses the locking screw, preventing it from loosening or falling off due to vibration during milling; a shim is placed between the mating plate and the pressure plate to absorb vibrations generated during milling, preventing uneven cutting depth and increased cutting spread due to tool vibration; and a vertical plate is provided at one end of the fixing seat in the milling cutter. A screw hole is threaded through the center of the vertical plate, and a linkage screw is screwed into the screw hole. A push plate is set on the fixed base, allowing the operator to rotate the linkage screw to move the push plate on the fixed base, thereby quickly rotating the locking plate. This allows the milling cutter bar to be quickly locked in the fixed base and unlocked. During use, if the cutting edge is severely worn or damaged, it may be that only one cutting edge needs to be replaced, or the cutting edges may be generally worn and all cutting edges need to be replaced. This requires replacement one by one, which reduces work efficiency. Both situations can occur, but existing milling cutters cannot meet the problem of efficiently replacing one or all of them. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this utility model provides a milling cutter with a replaceable function. When a specific milling cutter edge needs to be replaced, the moving rod and the mounting rod are separated. The downward movement of the mounting rod causes the gear to rotate, and the limiting rod to move downward. The rotation of the gear separates the rectangular rod from the milling cutter edge, and the downward movement of the limiting rod also separates it from the milling cutter edge. When replacing all the milling cutter edges, the downward movement of the ring moves all the rectangular rods and limiting rods, allowing the milling cutter edges to be removed and replaced. This allows for replacement based on the different conditions of the milling cutter edges, improving functionality and solving the problem that if the cutting edges are severely worn or damaged, only one edge may need to be replaced, or all cutting edges may be worn and require replacement. This necessitates replacing each edge individually, resulting in low work efficiency. Both of these situations can occur, but existing milling cutters cannot efficiently replace one or all of them.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a milling cutter with a replaceable function, comprising a milling cutter shank and milling cutter blades, wherein a replaceable mechanism is provided at the top of the milling cutter shank, a fixing rod is fixedly provided at the top of the milling cutter shank, and the number of milling cutter blades is multiple.

[0007] The replacement mechanism includes a ring, with multiple sleeves fixedly installed on the inner wall of the ring. A moving rod is installed on the outer side of the ring, passing through the ring and extending into the interior of the sleeve. The moving rod is slidably connected to both the ring and the sleeve. A gear is installed below the end of the moving rod away from the sleeve. A groove is provided on the top surface of the milling cutter rod, with a circular cross-sectional shape. A rectangular rod is provided on one side of the gear, contacting the milling cutter rod. A slot is provided on the surface of the top tip of the milling cutter near the milling cutter rod, contacting the rectangular rod.

[0008] Preferably, a protective shell is provided on the top of the milling cutter rod, and the protective shell is fixedly connected to the milling cutter rod by screws.

[0009] Preferably, the fixing rod penetrates the protective shell and is in contact with the protective shell.

[0010] Preferably, a connecting spring is provided inside the sleeve, and the connecting spring is fixedly connected to the moving rod.

[0011] Preferably, a threaded rod is fixedly provided on the side of the gear near the rectangular rod, and the threaded rod is threadedly connected to the rectangular rod. Supports are provided above and below the threaded rod.

[0012] Preferably, one end of the bracket is fixedly connected to the milling cutter rod, and the other end of the bracket is rotatably connected to the gear.

[0013] Preferably, the milling cutter bar has an internal mounting rod that contacts the milling cutter bar, and the top end of the mounting rod extends to the top of the milling cutter bar.

[0014] Preferably, a toothed rail is fixedly provided on the surface of the top end of the mounting rod near the gear, and the toothed rail meshes with the gear. The moving rod passes through the top end of the mounting rod and is in contact with the mounting rod.

[0015] Preferably, a rotating rod is provided inside the groove, and the rotating rod is connected to the ring via a threaded connection. Lifting rods are provided at the bottom of both ends of the ring.

[0016] Preferably, the bottom end of the lifting rod is slidably connected to the milling cutter rod, and the bottom surface of the milling cutter blade is provided with an inner groove, and a limiting rod is provided in the inner groove. Beneficial effects

[0017] This invention provides a milling cutter with a replaceable function. Compared with the prior art, it has the following advantages:

[0018] 1. This milling cutter with a replacement function allows for the separation of the moving rod and the mounting rod when a specific milling cutter edge needs to be replaced. The downward movement of the mounting rod causes the gear to rotate and the limiting rod to move downward. The rotation of the gear separates the rectangular rod from the milling cutter edge, and the downward movement of the limiting rod also separates it from the milling cutter edge. When replacing all the milling cutters, the downward movement of the ring moves all the rectangular rods and limiting rods, allowing the milling cutters to be removed and replaced. This enables replacement according to different conditions of the milling cutter edges, improving functionality.

[0019] 2. The milling cutter with replacement function can protect the replacement mechanism by covering it with a protective shell, reducing the impact on the replacement mechanism. Because the sleeve is located above the groove, the downward movement of the sleeve allows the sleeve to enter the groove without affecting the downward movement of the sleeve and the ring. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a perspective view of the motion mechanism and mounting rod of this utility model;

[0022] Figure 3 This is a cross-sectional view of the overall structure of this utility model;

[0023] Figure 4 For the present utility model Figure 3 Enlarged view of part A in the image;

[0024] Figure 5This is a top view of the ring and sleeve of this utility model.

[0025] In the diagram: 1. Milling cutter shank; 2. Changing mechanism; 201. Ring; 202. Sleeve; 203. Moving rod; 204. Gear; 205. Groove; 206. Rectangular rod; 207. Hole slot; 208. Threaded rod; 209. Mounting rod; 210. Rotating rod; 211. Lifting rod; 212. Inner groove; 213. Limiting rod; 3. Milling cutter edge; 4. Fixing rod; 5. Protective shell. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figure 1-5 This utility model provides a technical solution: a milling cutter with a replaceable function, including a milling cutter shank 1 and milling cutter blades 3, a replacement mechanism 2 is provided on the top of the milling cutter shank 1, a fixing rod 4 is fixedly provided on the top of the milling cutter shank 1, and the number of milling cutter blades 3 is large.

[0028] The replacement mechanism 2 includes a ring 201. A sleeve 202 is fixedly installed on the inner wall of the ring 201. There are multiple sleeves 202. A moving rod 203 is installed on the outer side of the ring 201. The moving rod 203 passes through the ring 201 and extends into the inside of the sleeve 202. The moving rod 203 is slidably connected to the ring 201 and the sleeve 202 respectively. A gear 204 is installed below the end of the moving rod 203 away from the sleeve 202. A groove 205 is provided on the top surface of the milling cutter 1. The cross-sectional shape of the groove 205 is the shape of the ring 201. A rectangular rod 206 is provided on one side of the gear 204. The rectangular rod 206 is in contact with the milling cutter 1. A slot 207 is provided on the side surface of the top of the milling cutter 3 near the milling cutter 1. The slot 207 is in contact with the rectangular rod 206.

[0029] The sleeve 202 has a connecting spring inside, and the connecting spring is fixedly connected to the moving rod 203.

[0030] A threaded rod 208 is fixedly installed on the side of gear 204 near rectangular rod 206, and the threaded rod 208 is threadedly connected to rectangular rod 206. Supports are provided above and below threaded rod 208. One end of the support is fixedly connected to milling cutter rod 1, and the other end of the support is rotatably connected to gear 204. The rotation of gear 204 drives the threaded rod 208 to rotate. When gear 204 rotates, one end of the support is fixedly connected to milling cutter edge 3 to prevent the support from moving downward, and the other end of the support is rotatably connected to milling cutter edge 3 to allow gear 204 to rotate.

[0031] The milling cutter shank 1 has an internal mounting rod 209 that contacts the milling cutter shank 1. The top of the mounting rod 209 extends to the top of the milling cutter shank 1. A toothed rail is fixedly mounted on the surface of the top of the mounting rod 209 near the gear 204, and the toothed rail meshes with the gear 204. A moving rod 203 passes through the top of the mounting rod 209 and contacts the mounting rod 209. A rotating rod 210 is installed inside the groove 205. The rotating rod 210 is connected to the ring 201 via a thread. Lifting rods 211 are provided at the bottom of both ends of the ring 201. The bottom ends of the lifting rods 211 are slidably connected to the milling cutter shank 1. The milling cutter blade 3 The bottom surface of the device is provided with an inner groove 212, and a limiting rod 213 is provided in the inner groove 212. When it is necessary to replace a certain milling cutter edge 3, the moving rod 203 is separated from the mounting rod 209. The downward movement of the mounting rod 209 causes the gear 204 to rotate, and the limiting rod 213 moves downward. The rotation of the gear 204 causes the rectangular rod 206 to separate from the milling cutter edge 3. The downward movement of the limiting rod 213 also separates it from the milling cutter edge 3. When all the milling cutters are replaced, the downward movement of the ring 201 causes all the rectangular rods 206 and the limiting rod 213 to move, and the milling cutter edge 3 can also be removed and replaced.

[0032] Please see Figure 1 The top of the milling cutter shank 1 is provided with a protective shell 5. The protective shell 5 is fixedly connected to the milling cutter shank 1 by screws. The fixing rod 4 passes through the protective shell 5 and is in contact with the protective shell 5. By covering the replacement mechanism 2 with the protective shell 5, the replacement mechanism 2 can be protected and the impact on the replacement mechanism 2 can be reduced. When replacement is required, the screws at the protective shell 5 are removed and the protective shell 5 is moved upward, so that the distance between the protective shell 5 and the top of the milling cutter shank 1 is increased, making it easier to operate the replacement mechanism 2.

[0033] During operation, during replacement, one of the moving rods 203 is moved. Since the moving rod 203 is slidably connected to both the ring 201 and the sleeve 202, it can move in a straight line, causing one end of the moving rod 203 to separate from the top of the mounting rod 209, preventing them from contacting each other. The movement of the moving rod 203 also compresses the connecting spring inside the sleeve 202, causing it to deform. After the moving rod 203 separates from the mounting rod 209, the mounting rod 209 moves downwards. This causes the limiting rod 213 and the gear rail, which are fixedly connected to the mounting rod 209, to move downwards simultaneously. As the gear rail moves downwards, it meshes with the gear 204, causing the gear 204 to rotate. Simultaneously, the threaded rod 208, fixedly connected to the gear 204, also rotates. Since the threaded rod 208 is threadedly connected to the rectangular rod 206, its rotation causes the rectangular rod 206 to move towards the groove 205, separating it from the slot 207 on the surface of the milling cutter 3. The limiting rod 213 moves downward, separating it from the milling cutter edge 3. The milling cutter edge 3 that was in contact with the milling cutter rod 1 can be removed and replaced with a new one. When a complete replacement is required, the moving rod 203 is brought into contact with the mounting rod 209, causing the rotating rod 210 to rotate. Since the rotating rod 210 is connected to the ring 201 via a threaded connection, the rotation of the rotating rod 210 causes the ring 201 to move downward, which in turn causes the lifting rod 211 below the ring 201 to move downward, allowing the lifting rod 211 to enter the milling cutter rod 1. This movement is then facilitated by the ring 201. The downward movement of rod 1 causes all moving rods 203 to move downward together, and the mounting rod 209 to move downward, causing gear 204 to rotate, rectangular rod 206 to move, and limiting rod 213 to separate from the milling cutter edge 3. This allows all milling cutter edges 3 to be removed, improving work efficiency. After removal, a new milling cutter edge 3 is placed at milling cutter rod 1, and the mounting rod 209 moves upward, allowing limiting rod 213 and rectangular rod 206 to merge with the new milling cutter edge 3, completing the replacement work. This allows for replacement according to different conditions of the milling cutter edge 3, improving functionality.

[0034] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

Claims

1. A milling cutter with a replacement function, comprising a milling cutter bar (1) and a milling cutter blade (3), characterized in that: The top of the milling cutter bar (1) is provided with a replacement mechanism (2), and the top of the milling cutter bar (1) is fixedly provided with a fixing rod (4). The number of milling cutter blades (3) is multiple. The replacement mechanism (2) includes a ring (201), and a sleeve (202) is fixedly provided on the inner wall of the ring (201). There are multiple sleeves (202). A moving rod (203) is provided on the outer side of the ring (201). The moving rod (203) passes through the ring (201) and extends into the inside of the sleeve (202). The moving rod (203) is slidably connected to the ring (201) and the sleeve (202) respectively. The moving rod (203) is away from the sleeve. A gear (204) is provided below one end of the (202) and a groove (205) is provided on the top surface of the milling cutter (1). The cross-sectional shape of the groove (205) is annular. A rectangular rod (206) is provided on one side of the gear (204). The rectangular rod (206) is in contact with the milling cutter (1). A hole groove (207) is provided on the side surface of the top of the milling cutter (3) near the milling cutter (1). The hole groove (207) is in contact with the rectangular rod (206).

2. The milling cutter with a replacement function according to claim 1, characterized in that: The top of the milling cutter rod (1) is provided with a protective shell (5), which is fixedly connected to the milling cutter rod (1) by screws.

3. A milling cutter with a replaceable function according to claim 2, characterized in that: The fixing rod (4) penetrates the protective shell (5) and is in contact with the protective shell (5).

4. A milling cutter with a replaceable function according to claim 1, characterized in that: The sleeve (202) is equipped with a connecting spring inside, and the connecting spring is fixedly connected to the moving rod (203).

5. A milling cutter with a replaceable function according to claim 1, characterized in that: A threaded rod (208) is fixedly provided on the side of the gear (204) near the rectangular rod (206), and the threaded rod (208) is threadedly connected to the rectangular rod (206). A bracket is provided above and below the threaded rod (208).

6. A milling cutter with a replaceable function according to claim 5, characterized in that: One end of the bracket is fixedly connected to the milling cutter rod (1), and the other end of the bracket is rotatably connected to the gear (204).

7. A milling cutter with a replaceable function according to claim 1, characterized in that: The milling cutter bar (1) is provided with an installation rod (209) inside, the installation rod (209) is in contact with the milling cutter bar (1), and the top end of the installation rod (209) extends to the top of the milling cutter bar (1).

8. A milling cutter with a replaceable function according to claim 7, characterized in that: A toothed rail is fixedly provided on the side surface of the top of the mounting rod (209) near the gear (204), and the toothed rail meshes with the gear (204). The moving rod (203) passes through the top of the mounting rod (209) and is in contact with the mounting rod (209).

9. A milling cutter with a replaceable function according to claim 1, characterized in that: The groove (205) is provided with a rotating rod (210), which is connected to the ring (201) by a thread. Both ends of the ring (201) are provided with lifting rods (211).

10. A milling cutter with a replaceable function according to claim 9, characterized in that: The bottom end of the lifting rod (211) is slidably connected to the milling cutter rod (1), and the bottom surface of the milling cutter blade (3) is provided with an inner groove (212), and the inner groove (212) is provided with a limiting rod (213).

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