Firm milling cutter disc with milling cutters convenient to replace

Abstract

The utility model relates to the technical field of machining lathes, in particular to a firm milling cutter disc convenient for replacing milling cutters, which comprises a base, a fixed disc, bolts, a shaft sleeve, the milling cutters, an air cylinder component and a buckle component, screw holes are arranged at four corners of the fixed disc, the fixed disc is fixedly connected with the base through the bolts, the fixed disc is sleeved with the shaft sleeve, and the shaft sleeve is sleeved with the air cylinder component. The shaft sleeve is in threaded connection, the air cylinder assembly is fixedly connected with the fixing disc, the air cylinder assembly abuts against the buckle component, the buckle component is connected with the milling cutter in a clamped mode, the milling cutter of a machine tool is placed in the shaft sleeve in a threaded connection mode, and then the milling cutter is inserted into the fixing disc along with the shaft sleeve, so that it is guaranteed that the milling cutter has high positioning precision, and rapid cutter setting is achieved; when the milling cutter needs to be replaced, the air cylinder assembly is started to release the buckle component, and the milling cutter can be easily taken out only by slightly pulling the buckle component downwards, so that the operation is convenient, easy and labor-saving.

Description

Technical Field

[0001] This utility model relates to the field of machining lathe technology, and in particular to a robust milling cutter disc that facilitates the replacement of milling cutters. Background Technology

[0002] To ensure the normal operation of the milling cutter head, milling lathes use multiple sets of fixtures to fix the cutter head. After replacing the cutter head, a complex process is required to align the cutter head's axis with the axis of the machine tool's drive components. The multiple sets of fixtures require complicated operations to replace the cutter head, which is not conducive to equipment maintenance and requires a high level of technical skill from maintenance workers.

[0003] Currently, Chinese utility model application number 201921722695.9 discloses a robust disc that facilitates the replacement of milling cutters. Although the milling cutter is fixed by a horizontal limiting block connected by screws, the disassembly operation is still relatively complicated. Utility Model Content

[0004] The technical problem to be solved by this utility model is that: the tool setting process is complicated to ensure that the axis of the tool head is aligned with the axis of the machine tool drive component, and the tool changing operation is cumbersome and not easy or labor-saving.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a robust milling cutter disc that facilitates the replacement of milling cutters, comprising a base, a fixed disc, bolts, a bushing, a milling cutter, a cylinder assembly, and a snap-fit ​​component. The fixed disc has screw holes at its four corners. The fixed disc is fixedly connected to the base by bolts. The fixed disc is fitted with a bushing, which is threaded. The cylinder assembly is fixedly connected to the fixed disc. The cylinder assembly abuts against the snap-fit ​​component, and the snap-fit ​​component engages with the milling cutter.

[0006] As a preferred embodiment of the robust milling cutter disc that facilitates the replacement of milling cutters according to this utility model, the cylinder assembly includes an air inlet, a cylinder, a piston, a sliding shaft, and a compression spring. The compression spring is sleeved on the sliding shaft. The cylinder is provided with an air inlet. The piston is slidably connected to the cylinder. One end of the sliding shaft is fixedly connected to the piston, and the other end of the sliding shaft is slidably connected to a snap-fit ​​component.

[0007] As a preferred embodiment of the robust milling cutter disc that facilitates the replacement of milling cutters according to this utility model, the snap-fit ​​component includes a slot, two sets of brackets and a snap-fit. The slot is fixedly connected to the fixed disc, the two sets of brackets are slidably connected to the sliding shaft, the brackets are slidably connected to the slot, the brackets are fixedly connected to the snap-fit, and the snap-fit ​​engages with the milling cutter.

[0008] As a preferred embodiment of the robust milling cutter disc that facilitates the replacement of milling cutters according to this utility model, wherein: the end of the milling cutter is provided with a thread that matches the bushing, and the end of the milling cutter is provided with a self-locking ring groove.

[0009] As a preferred embodiment of the robust milling cutter disc that facilitates the replacement of milling cutters according to this utility model, the bushing is made of metal, and the metal material is elastic.

[0010] As a preferred embodiment of the robust milling cutter disc that facilitates the replacement of milling cutters according to this utility model, the sliding shaft is provided with a groove for sliding with the matching bracket.

[0011] As a preferred embodiment of the robust milling cutter disc that facilitates the replacement of milling cutters according to the present invention, the fixed disc is provided with a first through cavity and a tapered groove.

[0012] The beneficial effects of this utility model are as follows: By placing the milling cutter of the machine tool in the bushing through a threaded connection, and then inserting the milling cutter with the bushing into the fixed plate, this utility model ensures that the milling cutter has high positioning accuracy and achieves rapid tool setting. The milling cutter is fixed by a snap-lock. When the milling cutter needs to be replaced, the cylinder assembly is activated to release the snap-lock component. The milling cutter can be easily removed by simply pulling it down gently. The operation is convenient, easy and labor-saving. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of a robust milling cutter head that facilitates cutter replacement, according to an embodiment of the present disclosure.

[0014] Figure 2 This is a cross-sectional view of a robust milling cutter disc that facilitates cutter replacement, according to an embodiment of the present disclosure.

[0015] Figure 3 This is a schematic diagram of a cylinder assembly structure for a robust milling cutter disc that facilitates cutter replacement, according to an embodiment of this disclosure.

[0016] Figure 4 This is a cross-sectional view of the bushing of a robust milling cutter disc that facilitates cutter replacement, according to an embodiment of the present disclosure.

[0017] Figure 5 This invention discloses a snap-fit ​​component for a robust milling cutter disc that facilitates cutter replacement. Figure 3 Enlarged diagram of point A.

[0018] Figure 6 This is a schematic diagram of the groove of a robust milling cutter disc that facilitates the replacement of milling cutters, according to an embodiment of this disclosure.

[0019] Reference numerals: 1. Base; 2. Fixing plate; 21. First through cavity; 22. Conical groove; 3. Bolt; 4. Bushing; 5. Milling cutter; 51. Self-locking ring groove; 6. Cylinder assembly; 61. Air inlet; 62. Cylinder; 63. Piston; 64. Sliding shaft; 65. Compression spring; 7. Snap-fit ​​component; 71. Snap-fit ​​groove; 72. Bracket; 721. Slide groove; 73. Detailed Implementation

[0020] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0021] Example, refer to Figures 1-6 This embodiment provides a robust milling cutter disc that facilitates cutter replacement, including a base 1, a fixed plate 2, bolts 3, bushings 4, a milling cutter 5, a cylinder assembly 6, and a snap-fit ​​component 7. The fixed plate 2 has screw holes at its four corners. The fixed plate 2 is fixedly connected to the base 1 by bolts 3. The fixed plate 2 is fitted with bushings 4, which are threaded together. The cylinder assembly 6 is fixedly connected to the fixed plate 2 and abuts against the snap-fit ​​component 7. The snap-fit ​​component 7 engages with the milling cutter 5.

[0022] In this preferred embodiment, the fixing plate 2 is securely fixed to the base 1 by bolts 3. The milling cutter 5 of the machine tool is threadedly placed inside the bushing 4. Then, the milling cutter 5, along with the bushing 4, is inserted into the fixing plate 2. The cylinder assembly 6 is activated, which drives the locking component 7 to lock the milling cutter 5, thereby fixing the milling cutter 5. Since the bushing 4 and the fixing plate 2 are on the same axis, quick tool setting can be achieved, allowing the operator to install the milling cutter 5 more quickly and accurately. When the milling cutter 5 needs to be replaced, the cylinder assembly 6 is activated to push the locking component 7 downward. Due to the release of the locking component 7, the clamping force on the milling cutter 5 is reduced. A person only needs to gently pull down to easily remove the milling cutter 5 and the bushing 4. Then, by rotating, the milling cutter 5 is removed from the bushing 4, thus completing the replacement of the milling cutter 5. The bushing 4 plays a buffering role during the operation of the milling cutter 5, preventing the two from directly contacting each other, thereby extending the service life of the milling cutter 5.

[0023] Reference Figure 2 and Figure 3 The cylinder assembly 6 includes an air inlet 61, a cylinder 62, a piston 63, a sliding shaft 64, and a compression spring 65. The compression spring 65 is sleeved on the sliding shaft 64. The cylinder 62 is provided with an air inlet 61. The piston 63 is slidably connected to the cylinder 62. One end of the sliding shaft 64 is fixedly connected to the piston 63, and the other end of the sliding shaft 64 is slidably connected to the buckle member 7.

[0024] In this preferred embodiment, when compressed air enters the cylinder 62 through the air inlet 61, the piston 63 moves downward instantaneously, and the piston 63 pushes the sliding shaft 64 downward, at which time the compression spring 65 is compressed.

[0025] Reference Figure 3 and Figure 5 The snap-fit ​​component 7 includes a slot 71, two sets of brackets 72 and a snap-fit ​​73. The slot 71 is fixedly connected to the fixed plate 2. The two sets of brackets 72 are slidably connected to the sliding shaft 64. The brackets 72 are slidably connected to the slot 71. The brackets 72 are fixedly connected to the snap-fit ​​73. The snap-fit ​​73 engages with the milling cutter 5.

[0026] In this preferred embodiment, the buckle 73 holds and fixes the milling cutter 5. When it is necessary to remove the milling cutter 5, the cylinder is activated to move downward, which drives the two sets of brackets 72 to move downward. As the inner diameter of the slot 71 gradually increases, the clamping force generated by the two sets of brackets 72 decreases. Since the buckle 73 has an arc-shaped end face, the milling cutter 5 can be easily removed.

[0027] Reference Figure 4 and Figure 5 The end of the milling cutter 5 is provided with a thread that matches the bushing 4, and the end of the milling cutter 5 is provided with a self-locking ring groove 51.

[0028] In this preferred embodiment, both ends of the self-locking ring groove 51 are inclined surfaces, which facilitates the installation and removal of the milling cutter 5.

[0029] Reference Figure 4 The bushing 4 is made of metal, and metal is elastic.

[0030] In this preferred embodiment, because the bushing 4 is elastic, when it is installed in the fixed plate 2, it will cooperate with the conical surface of the fixed plate 2, thereby ensuring that the milling cutter 5 has a high positioning accuracy.

[0031] Reference Figure 6 The sliding shaft 64 has a sliding groove 721 for sliding the matching bracket 72.

[0032] In this preferred embodiment, the two sets of brackets 72 slide relative to each other in the slide groove 721 to clamp the milling cutter 5.

[0033] Reference Figure 2 The fixed plate 2 is provided with a first through cavity 21 and a conical groove 22.

[0034] In this preferred embodiment, a compression spring 65 is placed in the first cavity 21 so that the cylinder assembly 6 can return to its original state.

[0035] Working principle: The fixed plate 2 is firmly fixed to the base 1 by bolts 3. The milling cutter 5 of the machine tool is threaded and placed in the bushing 4. Then, the milling cutter 5 with the bushing 4 is inserted into the fixed plate 2. Because the bushing 4 is elastic, it will cooperate with the conical surface of the fixed plate 2 when it is installed in the fixed plate 2, thus ensuring that the milling cutter 5 has a high positioning accuracy. The buckle 73 locks and fixes the milling cutter 5. When it is necessary to remove the milling cutter 5, compressed air enters the cylinder 62 through the air inlet 61. The piston 63 moves downward instantly. The piston 63 pushes the sliding shaft 64 downward. At this time, the compression spring 65 is squeezed, which drives the two sets of brackets 72 to move downward. As the inner diameter of the slot 71 gradually increases, the clamping force generated by the two sets of brackets 72 decreases. Because the buckle 73 has an arc-shaped end face, the milling cutter 5 can be easily removed and fixed. Since the bushing 4 and the fixing plate 2 are on the same axis, quick tool setting can be achieved, allowing the operator to install the milling cutter 5 more quickly and accurately. When the milling cutter 5 needs to be replaced, the cylinder assembly 6 is activated to push the buckle component 7 downward. Due to the release of the buckle component 7, the clamping force on the milling cutter 5 is reduced. The operator only needs to pull down gently to easily remove the milling cutter 5 and the bushing 4. Then, by rotating, the milling cutter 5 is removed from the bushing 4, thus completing the replacement of the milling cutter 5. The bushing 4 plays a buffering role during the operation of the milling cutter 5, preventing the two from directly contacting each other, thereby extending the service life of the milling cutter 5.

Claims

1. A robust milling cutter disc for easy cutter replacement, characterized in that: The device includes a base (1), a fixed plate (2), bolts (3), bushings (4), a milling cutter (5), a cylinder assembly (6), and a snap-fit ​​component (7). The fixed plate (2) has screw holes at its four corners. The fixed plate (2) is fixedly connected to the base (1) by bolts (3). The fixed plate (2) is fitted with bushings (4), which are threaded. The cylinder assembly (6) is fixedly connected to the fixed plate (2). The cylinder assembly (6) abuts against the snap-fit ​​component (7), and the snap-fit ​​component (7) engages with the milling cutter (5).

2. The robust milling cutter disc for easy cutter replacement as described in claim 1, characterized in that: The cylinder assembly (6) includes an air inlet (61), a cylinder (62), a piston (63), a sliding shaft (64), and a compression spring (65). The compression spring (65) is sleeved on the sliding shaft (64). The cylinder (62) is provided with an air inlet (61). The piston (63) is slidably connected to the cylinder (62). One end of the sliding shaft (64) is fixedly connected to the piston (63), and the other end of the sliding shaft (64) is slidably connected to a snap-fit ​​component (7).

3. A robust milling cutter disc for easy cutter replacement as described in claim 2, characterized in that: The buckle component (7) includes a slot (71), two sets of brackets (72) and a buckle (73). The slot (71) is fixedly connected to the fixed plate (2). The two sets of brackets (72) are slidably connected to the sliding shaft (64). The brackets (72) are slidably connected to the slot (71). The brackets (72) are fixedly connected to the buckle (73). The buckle (73) engages with the milling cutter (5).

4. A robust milling cutter disc for easy cutter replacement as described in claim 1, characterized in that: The end of the milling cutter (5) is provided with a thread matching the bushing (4), and the end of the milling cutter (5) is provided with a self-locking ring groove (51).

5. A robust milling cutter disc for easy cutter replacement as described in claim 1, characterized in that: The bushing (4) is made of metal, and metal is elastic.

6. A robust milling cutter disc for easy cutter replacement as described in claim 3, characterized in that: The sliding shaft (64) has a groove (721) for sliding the matching bracket (72).

7. A robust milling cutter disc for easy cutter replacement as described in claim 1, characterized in that: The fixed plate (2) is provided with a first through cavity (21) and a conical groove (22).

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