Milling cutter convenient to install

Abstract

The utility model relates to the field of milling cutters, in particular to a milling cutter convenient to install, which comprises a milling cutter handle, a milling cutter body, a dismounting structure for fixing the milling cutter body and a positioning structure for positioning a cutter head, the milling cutter handle consists of a cutter handle section and an external thread section positioned at the bottom end of the cutter handle section, and the milling cutter body consists of a cutter body section, the connecting section is located at the top end of the cutter body section, the detachable cutter heads are symmetrically installed below the cutter body section, the dismounting and mounting structure comprises a rotatable connecting sleeve located on the outer side of the external thread section of the milling cutter handle and three movable clamping balls located on the inner wall of the external thread section. According to the milling cutter, the purpose of rapidly fixing the milling cutter body can be achieved by rotating the connecting sleeve, moving the connecting sleeve upwards and extruding the clamping ball into the clamping groove through the boss section of the connecting sleeve, the purpose of positioning the milling cutter body can be achieved by clamping the limiting block and the limiting groove, the installation stability of the milling cutter body is improved, and the shaking condition is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of milling cutters, in particular to a milling cutter which is easy to install. Background Art

[0002] With the continuous development of the machining industry, the types of tools used are also increasing. Milling cutters are one of them. Milling cutters are cutting tools commonly used in milling machines or processing machines to perform milling operations. They remove materials through their fixed feed rate in the machine. There are many types, including end mills, roughing end mills and face milling cutters.

[0003] The utility model with the publication number CN212310959U provides a milling cutter that is convenient to install and fix, including a fixed seat, a first groove is provided inside the fixed seat, a cutter head is clamped inside the first groove, a reset spring is fixedly installed inside the first groove, a baffle is fixedly installed on the other end of the reset spring, a second groove is provided inside the cutter head, and a first spring is fixedly installed inside the second groove. The utility model drives the second threaded rod to rotate by rotating the second knob, and the second threaded rod drives the limit rod to move outward, so that the limit rod slides along the fourth groove and the limit rod is separated from the fixed groove. By rotating the first knob, the first knob drives the first threaded rod to rotate, and the first threaded rod drives the threaded barrel connected to its outer side to move outward, and the threaded barrel drives the limit block to move inward through the push rod, so that the limit block is separated from the limit groove, thereby releasing the restriction of the fixed seat on the cutter head. The above arrangement facilitates the disassembly and installation of the cutter head and improves work efficiency.

[0004] When in use, a return spring is used to squeeze the limit block to the limit groove and fix it by engaging with it. The fixing effect is not good and the milling cutter is prone to slight shaking.

[0005] Therefore, it is necessary to provide a new technical solution to overcome the above-mentioned defects. Utility Model Content

[0006] The purpose of the utility model is to provide a milling cutter which is easy to install and can effectively solve the above technical problems.

[0007] To achieve the purpose of the present utility model, the following technical solutions are adopted: A milling cutter that is convenient to install, comprising: a milling cutter handle, a milling cutter body, a disassembly and assembly structure for fixing the milling cutter body, and a positioning structure for positioning the cutter head. The milling cutter handle is composed of a handle section and an external thread section located at the bottom end of the handle section. The milling cutter body is composed of a body section, a connection section located at the top end of the body section, and detachable cutter heads symmetrically installed below the body section. The disassembly and assembly structure includes: a rotatable connection sleeve located outside the external thread section of the milling cutter handle, a movable clamping ball located on the inner wall of the external thread section. There are three clamping balls, evenly distributed. Corresponding clamping slots are provided on the connection section of the milling cutter body for the clamping balls, a limiting block fixedly installed on the inner wall of the external thread section of the milling cutter handle, and a corresponding limiting slot is provided on the connection section of the milling cutter body for the limiting block.

[0008] Further, the connection sleeve is composed of an internal thread section at the lower end, a boss section in the middle end, and a groove section at the upper end.

[0009] Further, a tool holder is fixedly installed below the body section of the milling cutter body, and the cutter head is fixed on the tool holder by screws.

[0010] Further, the positioning structure includes: positioning blocks symmetrically installed at one end of the cutter head, and corresponding positioning slots are provided on the tool holder for the positioning blocks.

[0011] Compared with the prior art, the present utility model has the following beneficial effects: For the milling cutter that is convenient to install in the present utility model, by rotating the connection sleeve, the connection sleeve moves upward, and the boss section of the connection sleeve squeezes the clamping balls into the clamping slots, so as to achieve the purpose of quickly fixing the milling cutter body. The clamping of the limiting block and the limiting slot can achieve the purpose of positioning the milling cutter body, improve the stability of its installation, and avoid the situation of shaking;

[0012] When installing the cutter head, by inserting the positioning block into the positioning slot and clamping with it, the purpose of positioning the cutter head can be achieved, and the stability of its installation can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The drawings are used to provide a further understanding of the present utility model, and constitute a part of the specification. Together with the embodiments of the present utility model, they are used to explain the present utility model, and do not constitute a limitation to the present utility model.

[0014] Figure 1 It is a front view structural schematic diagram of the present utility model;

[0015] Figure 2 It is a front view sectional structural schematic diagram of the present utility model;

[0016] Figure 3 It is a front view structural schematic diagram of the milling cutter body of the present utility model;

[0017] Figure 4 Schematic diagram of the upward view of the milling cutter body of the present utility model;

[0018] Figure 5 Schematic diagram of the upward view of the milling cutter handle of the present utility model.

[0019] In the figure: 1. Milling cutter handle; 101. Handle section; 102. External thread section; 2. Disassembly and assembly structure; 201. Connecting sleeve; 2011. Internal thread section; 2012. Boss section; 2013. Groove section; 202. Ball; 203. Card slot; 204. Limit slot; 205. Limit block; 3. Milling cutter body; 301. Tool bit; 302. Tool holder; 303. Screw; 304. Body section; 305. Connecting section; 4. Positioning structure; 401. Positioning block; 402. Positioning slot. Specific embodiments

[0020] In order to make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be described clearly and completely below. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all the embodiments.

[0021] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "transverse", "longitudinal", "front", "rear", "left", "right", "upper", "lower", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the protection scope of the present utility model. When a mechanism is referred to as "fixed to" another mechanism, it can be directly on the other mechanism or there can also be an intermediate mechanism. When a mechanism is considered to be "connected" to another mechanism, it can be directly connected to the other mechanism or there may be an intermediate mechanism at the same time. When a mechanism is considered to be "arranged on" another mechanism, it can be directly arranged on the other mechanism or there may be an intermediate mechanism at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for the purpose of illustration.

[0022] As Figures 1 to 5 shown, a milling cutter that is convenient to install according to the present utility model includes: a milling cutter handle 1, a milling cutter body 3, a disassembly and assembly structure 2 for fixing the milling cutter body 3, and a positioning structure 4 for positioning the tool bit 301.

[0023] The milling cutter shank 1 is composed of a shank section 101 and an external thread section 102 located at the bottom end of the shank section 101. The milling cutter body 3 is composed of a body section 304, a connecting section 305 located at the top end of the body section 304, and detachable cutter heads 301 symmetrically installed below the body section 304. A tool holder 302 is fixedly installed below the body section 304 of the milling cutter body 3, and the cutter heads 301 are fixed to the tool holder 302 by screws 303. The inner diameter of the external thread section 102 of the milling cutter shank 1 is larger than the diameter of the connecting section 305 of the milling cutter body 3.

[0024] The disassembly and assembly structure 2 includes: a connecting sleeve 201 rotatable on the outside of the external thread section 102 of the milling cutter shank 1. The connecting sleeve 201 is composed of an internal thread section 2011 at the lower end, a boss section 2012 in the middle, and a groove section 2013 at the upper end. A clamping ball 202 movable on the inner wall of the external thread section 102 is provided. Three clamping balls 202 are evenly distributed. A clamping groove 203 corresponding to the clamping ball 202 is formed on the connecting section 305 of the milling cutter body 3. The milling cutter body 3 can be fixed by the clamping connection between the clamping ball 202 and the clamping groove 203.

[0025] A limiting block 205 fixedly installed on the inner wall of the external thread section 102 of the milling cutter shank 1. A limiting groove 204 corresponding to the limiting block 205 is formed on the connecting section 305 of the milling cutter body 3. The milling cutter body 3 can be positioned by the clamping connection between the limiting block 205 and the limiting groove 204.

[0026] In the present utility model, when the connecting sleeve 201 is rotated, the connecting sleeve 201 moves upward, and the boss section 2012 of the connecting sleeve 201 presses the clamping ball 202 into the clamping groove 203, so that the milling cutter body 3 can be quickly fixed. The clamping connection between the limiting block 205 and the limiting groove 204 can position the milling cutter body 3 and improve the stability of its installation.

[0027] The positioning structure 4 includes: positioning blocks 401 symmetrically installed at one end of the cutter head 301. A positioning groove 402 corresponding to the positioning block 401 is formed on the tool holder 302. The cutter head 301 can be positioned by the clamping connection between the positioning block 401 and the positioning groove 402, and the stability of its installation is improved.

[0028] Working principle: When installing the milling cutter body 3, the limit block 205 on the connection section 305 of the milling cutter body 3 aligns with the limit groove 204, and the connection section 305 is pushed into the external thread section 102 of the milling cutter handle 1. The limit block 205 is clamped with the limit groove 204. Then rotate the connecting sleeve 201, the connecting sleeve 201 moves upward, and the boss section 2012 of the connecting sleeve 201 squeezes the clamping ball 202 into the clamping groove 203, so as to achieve the purpose of quickly fixing the milling cutter body 3. By clamping the limit block 205 with the limit groove 204, the purpose of positioning the milling cutter body 3 can be achieved, improving the stability of its installation and avoiding shaking. When installing the cutter head 301, align the positioning block 401 with the positioning groove 402, push the cutter head 301, so that the positioning block 401 is clamped with the positioning groove 402, and then fix it with the screw 303, so as to achieve the purpose of fixing the cutter head 301.

[0029] When disassembling the milling cutter body 3, rotate the connecting sleeve 201, the connecting sleeve 201 moves downward until the groove section 2013 of the connecting sleeve 201 is flush with the clamping ball 202, releasing the fixing restriction on the clamping ball 202, and pull down the milling cutter body 3 to achieve the purpose of disassembling it for replacement.

[0030] The standard parts used in the present utility model can all be purchased from the market. The special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part all adopt conventional means such as bolts, rivets, welding, etc. that are mature in the prior art. The machines, parts and equipment all adopt conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be elaborated here. The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0031] It should be understood that for those of ordinary skill in the art, improvements or changes can be made according to the above description, and all such improvements and changes should fall within the protection scope of the appended claims of the present utility model.

Claims

1. A milling cutter that is easy to install, characterized in that: include: A milling cutter handle (1), a milling cutter body (3), a disassembly and assembly structure (2) for fixing the milling cutter body (3), and a positioning structure (4) for positioning a cutter head (301); The milling cutter handle (1) is composed of a handle section (101) and an external thread section (102) located at the bottom end of the handle section (101); The milling cutter body (3) is composed of a cutter body section (304), a connecting section (305) located at the top of the cutter body section (304), and a detachable cutter head (301) symmetrically installed below the cutter body section (304); The disassembly and assembly structure (2) comprises: a rotatable connecting sleeve (201) located outside the external thread section (102) of the milling cutter handle (1); a movable locking ball (202) located on the inner wall of the external thread section (102); three locking balls (202) are arranged and evenly distributed; a locking groove (203) corresponding to the locking ball (202) is provided on the connecting section (305) of the milling cutter body (3); a limiting block (205) fixedly mounted on the inner wall of the external thread section (102) of the milling cutter handle (1); and a limiting groove (204) corresponding to the limiting block (205) is provided on the connecting section (305) of the milling cutter body (3).

2. A milling cutter that is easy to install as claimed in claim 1, characterized in that: The connecting sleeve (201) is composed of an internal thread section (2011) at the lower end, a boss section (2012) at the middle end, and a groove section (2013) at the upper end.

3. A milling cutter that is easy to install as claimed in claim 1, characterized in that: A cutter seat (302) is fixedly mounted below the cutter body section (304) of the milling cutter body (3), and a cutter head (301) is fixed on the cutter seat (302) by means of screws (303).

4. A milling cutter that is easy to install as claimed in claim 1, characterized in that: The positioning structure (4) comprises: a positioning block (401) symmetrically mounted on one end of the cutter head (301); and a positioning groove (402) corresponding to the positioning block (401) is provided on the cutter seat (302).

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