Cutter head convenient to replace

Abstract

The utility model discloses a cutterhead convenient to replace, which comprises a cutterhead body, a plurality of blades and a fixing ring for fixing the blades are arranged on the cutterhead body, clamping ends are protruded on the blades, the fixing ring rotates on the cutterhead body, a clamping groove is formed on the cutterhead body, a bayonet groove is formed on the fixing ring, and the bayonet groove is matched with the clamping end. The fixing ring comprises a replacement state, a mutual separation state of the bayonet groove and the clamping groove and a locking state, the bayonet groove and the clamping groove are communicated and limit the separation of the clamping end, and a fixing piece for locking the fixing ring is arranged on the cutter head body. The utility model has the following advantages and effects: the blade does not need to be replaced by tedious disassembly of a plurality of bolts.

Description

Technical Field

[0001] This utility model relates to the field of cutter heads, and more specifically, it relates to a cutter head that is easy to replace. Background Technology

[0002] A cutter head is a device mounted on the spindle of a machine tool. It can hold multiple cutting tools and automatically changes tools through programmable control. During CNC machining, the cutter head drives the cutting tools to rotate or oscillate according to the machining requirements, thereby cutting the workpiece. In addition, the cutter head has the characteristics of high rigidity and strong load-bearing capacity, which can ensure the stability and reliability of the machining process.

[0003] The existing cutter head requires the bolts to be removed when changing the blades, and then the bolts to be installed again after the blades are replaced. This is especially cumbersome and inconvenient when multiple blades need to be replaced, as it requires the removal of a large number of bolts. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a blade disc with convenient blade replacement.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a replaceable cutter head, comprising a cutter head body, characterized in that: the cutter head body is provided with a plurality of blades and a fixing ring for fixing the blades, the blades have protruding snap-fit ​​ends, the fixing ring rotates on the cutter head body, and the cutter head body forms a snap-fit ​​groove, the fixing ring has a snap-fit ​​slot, the fixing ring includes a replacement state, the snap-fit ​​slot and the snap-fit ​​groove being separated from each other, and a locked state, the snap-fit ​​slot and the snap-fit ​​groove being connected and restricting the snap-fit ​​ends from disengaging, and the cutter head body is provided with a fixing member for locking the fixing ring.

[0006] The present invention is further configured such that: the fixing member includes a bolt; when the fixing ring is fixed to the cutter head body, a threaded hole is formed between the fixing ring and the cutter head body; the thread is connected to the threaded hole; and three threaded holes are evenly distributed in a circle around the cutter head body.

[0007] The present invention is further configured such that: a plurality of elastic grooves are provided on the cutter head body, a spring is provided in the elastic groove, an elastic protrusion protrudes from the fixing ring and is inserted into the elastic groove, one end of the spring is connected to the elastic protrusion and the other end is connected to the bottom end of the elastic groove.

[0008] The present invention is further configured such that: the elastic protrusion includes a first connecting end and a second connecting end, the first connecting end is connected to a fixing ring, the second connecting end is located in an elastic groove, the second connecting end is provided with a sliding groove, and the first connecting end is provided with a limiting part that slides in the sliding groove.

[0009] The present invention is further configured such that both the bayonet groove and the slot are semi-circular.

[0010] The present invention is further configured such that: the snap-fit ​​end is semi-circular, and when the blade is fixed, part of the snap-fit ​​end is located in the snap-fit ​​groove and part is located in the snap-fit ​​groove.

[0011] The present invention is further configured such that a limiting edge is provided at one end of the sliding groove.

[0012] The present invention is further configured such that the fixing ring is provided with a limit locking block.

[0013] This invention has the following advantages: all blades are fixed by a retaining ring, and multiple blades can be replaced simply by removing the retaining ring. Attached Figure Description

[0014] Figure 1 This is a perspective view of an embodiment of the present utility model;

[0015] Figure 2 This is an exploded view of an embodiment of the present utility model;

[0016] Figure 3 This is a schematic diagram of the elastic protrusion structure of an embodiment of the present invention.

[0017] In the figure: 1. Cutter head body; 2. Blade; 3. Retaining ring; 32. Bayonet groove; 31. Slot; 4. Threaded hole; 42. Elastic groove; 43. Elastic protrusion; 5. First connecting end; 51. Second connecting end; 53. Sliding groove; 54. Limiting part; 55. Limiting edge; 6. Limiting locking block. Detailed Implementation

[0018] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0019] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0020] Reference Figures 1 to 3 The embodiments of this utility model will be further described below.

[0021] A replaceable cutter head includes a cutter head body 1, characterized in that: the cutter head body 1 is provided with a plurality of blades 2, and a fixing ring 3 for fixing the blades 2, the blades 2 have protruding snap-fit ​​ends, the fixing ring 3 rotates on the cutter head body 1, and the cutter head body 1 forms a snap-fit ​​groove 31, the fixing ring 3 has a snap-fit ​​slot 32, the fixing ring 3 includes a replacement state, in which the snap-fit ​​slot 32 and the snap-fit ​​groove 31 are separated from each other, and a locked state, in which the snap-fit ​​slot 32 and the snap-fit ​​groove 31 are connected and prevent the snap-fit ​​ends from disengaging, the cutter head body 1 is provided with a fixing member for locking the fixing ring 3, the snap-fit ​​ends of the blades 2 are snapped between the snap-fit ​​slot 32 and the snap-fit ​​groove 31, and all blades 2 can be fixed by fixing the fixing ring 3. During maintenance, only the fixing ring 3 needs to be removed, without removing multiple bolts, reducing the workload.

[0022] The fastener includes bolts. When the fixing ring 3 is fixed to the cutter head body 1, a threaded hole 4 is formed between the fixing ring 3 and the cutter head body 1. The threaded hole 4 can be set at an angle or vertically, depending on the actual situation. The attached figure shows an angled setting. The threaded connection is to the threaded hole 4. There are three threaded holes 4 evenly distributed in a circle with the cutter head body 1. The three holes provide stable fixation and also improve the efficiency of disassembly and assembly.

[0023] The cutter head body 1 has several elastic grooves 42, and springs are installed in the elastic grooves 42. The fixing ring 3 has an elastic protrusion 43 that is inserted into the elastic groove 42. One end of the spring is connected to the elastic protrusion 43, and the other end is connected to the bottom of the elastic groove 42. After the bolts are removed, the spring can be directly lifted by the action of the spring, which is convenient for replacement.

[0024] The elastic protrusion 43 includes a first connecting end 5 and a second connecting end 51. The first connecting end 5 is connected to the fixing ring 3, and the second connecting end 51 is located in the elastic groove 42. A sliding groove 53 is provided on the second connecting end 51, and a limiting part 54 is provided on the first connecting end 5 that slides in the sliding groove 53. The first connecting end 5 and the second connecting end 51 can be displaced relative to each other. If the blade 2 is difficult to install, it can be moved to a certain extent to facilitate installation and use. A limiting edge 55 is provided at one end of the sliding groove 53 to prevent separation between the first connecting end 5 and the second connecting end 51.

[0025] Both the bayonet slot 32 and the slot 31 are semi-circular, and they fit together easily and are convenient to install.

[0026] The snap-fit ​​end is semi-circular, and when the blade 2 is fixed, part of the snap-fit ​​end is located in the snap-fit ​​groove 32 and part is located in the snap-fit ​​groove 31. The fixing ring 3 is provided with a limiting snap-fit ​​block 6, which cooperates with the snap-fit ​​end to fix and secure the blade 2 in the current state.

[0027] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

Claims

1. A cutter head for facilitating replacement, comprising a cutter head body, characterised by: The cutter head body is provided with a plurality of blades and a fixing ring for fixing the blades, the blades are provided with clamping ends, the fixing ring rotates on the cutter head body, the cutter head body is formed with clamping grooves, the fixing ring is provided with clamping slot, the fixing ring includes a replacement state in which the clamping slot and the clamping grooves are separated from each other, and a locking state in which the clamping slot and the clamping grooves are communicated and the clamping ends are limited to be separated, and the cutter head body is provided with a fixing member for locking the fixing ring.

2. A replaceable tip cutting insert according to claim 1 wherein: The fixing member includes a bolt, when the fixing ring is fixed on the cutter head body, the fixing ring and the cutter head body are formed with threaded holes which are communicated with each other, the bolt is screwed in the threaded holes, and the threaded holes are evenly formed with three circular holes in the cutter head body.

3. A replaceable cutting insert according to Claim 1, characterized in that: The cutter head body is provided with a plurality of elastic grooves, springs are arranged in the elastic grooves, the fixing ring is provided with elastic protrusions which are inserted into the elastic grooves, one end of the spring is connected with the elastic protrusion, and the other end of the spring is connected with the bottom end of the elastic groove.

4. A replaceable tip cutting insert according to claim 3 wherein: The elastic protrusion includes a first connecting end and a second connecting end, the first connecting end is connected with the fixing ring, and the second connecting end is located in the elastic groove and is provided with a sliding groove, and the first connecting end is provided with a limiting part which slides in the sliding groove.

5. The replaceable tip cutting head of claim 1 wherein: The clamping slot and the clamping groove are semicircular.

6. A replaceable tip cutting insert according to claim 1 wherein: The clamping end is semicircular, and when the blade is fixed, the clamping end is partially located in the clamping slot and partially located in the clamping groove.

7. A replaceable cutting insert according to Claim 4, characterized in that: One end of the sliding groove is provided with a limiting edge.

8. A replaceable cutting insert according to Claim 4, characterized by: The fixing ring is provided with a limiting clamping block.

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