Combined diamond milling cutter

Abstract

The utility model discloses a combined diamond milling cutter which solves the problem that a clamping plate affects normal insertion of a threaded rod due to the fact that the clamping plate is not limited by an existing detachable combined cutter. The milling-grinding tool comprises a milling-grinding tool body, and blades are detachably connected to the outer circumference of the milling-grinding tool body; the lower end of the milling cutter body is connected with a threaded rod; an insertion rod is fixed at the lower end of the threaded rod; the threaded rod is in threaded connection with a shell, a vertically-sliding abutting plate and a horizontally-sliding clamping plate are arranged in the shell, and the abutting plate vertically slides to drive the clamping plate to horizontally slide. A driving unit is arranged in the shell and is of a structure for driving the clamping plates to be away from the inserting rods in the initial state. The utility model has the advantages that: 1) the clamping plate clamps the middle part of the insertion rod, so that the stability of the cutter is fully ensured; and 2) the driving unit enables the clamping plate to be far away from the axis of the insertion rod in an initial state, so that interference between the insertion rod and the clamping plate in the process of inserting the insertion rod into the shell is avoided.

Description

Technical Field

[0001] This utility model relates to the field of cutting tool technology, and in particular to a combined diamond milling cutter. Background Technology

[0002] A milling cutter is a rotary tool used for grinding workpieces. By rotating at high speed, the cutting teeth on the milling cutter cut the surface of the workpiece to achieve the machining of the surface.

[0003] The application number is 202420459020.4, and the title is "A Quick-Disassembly Modular Milling Cutter Assembly for Milling Machines". It includes a milling cutter, and the milling cutter is connected to a connecting assembly via a threaded rod. The connecting assembly includes a connecting shell that is threadedly connected to the threaded rod and sleeved on the outside of the threaded rod. Inside the connecting shell, there is a cross gear plate placed below the threaded rod. Around the gear plate, there are transmission gears that mesh with the gear plate. A clamping plate is provided above the transmission gears. This invention solves the problems of inconvenient milling cutter replacement, cumbersome operation, and waste of manpower and resources in the prior art.

[0004] However, it also has its shortcomings: its clamping plates are in an unrestricted state at the beginning, which may cause the two clamping plates to be too close together at the beginning, making it inconvenient to insert the threaded rod downwards, thus affecting the normal use of the product. Utility Model Content

[0005] In view of the above situation and to overcome the defects of the prior art, this utility model provides a combined diamond milling cutter, which solves the problem that the clamping plate of the current disassembled combined cutter affects the normal insertion of the threaded rod because there is no clamping plate to restrict it.

[0006] This utility model solves the technical problem through the following technical means: a combined diamond milling cutter, including a milling cutter body, with a cutting blade detachably connected to the outer circumference of the milling cutter body;

[0007] The lower end of the milling cutter body is connected to a threaded rod, and an insertion rod is fixed to the lower end of the threaded rod.

[0008] The threaded rod is threadedly connected to a housing, and the housing contains a vertically sliding abutment plate and a horizontally sliding clamping plate. The vertical sliding of the abutment plate causes the clamping plate to slide horizontally.

[0009] The housing is equipped with a drive unit, which is designed to drive the clamping plate away from the insertion rod in the initial driving state.

[0010] Preferably, there are two clamping plates, which are symmetrically arranged inside the housing.

[0011] Preferably, the drive unit includes a tension spring, one end of which is fixedly connected to the housing, and the other end of which is fixedly connected to the clamping plate.

[0012] Preferably, the driving unit includes a horizontally sliding slider, with a first connecting rod hinged to the inner end of the slider. The first connecting rod is hinged and fixed to the contact plate. A spring is fixedly connected to the outer end of the slider, and the other end of the spring is fixedly connected to the housing. The spring is a structure that drives the slider to slide towards the middle of the housing.

[0013] Preferably, a guide rod is fixed inside the housing, the guide rod slides through a slider, and a spring is fitted around the outer circumference of the guide rod.

[0014] Preferably, a second connecting rod is hinged inside the housing, the middle part of the second connecting rod is hinged and fixed to the housing, a third connecting rod is hinged to the upper end of the second connecting rod, the other end of the third connecting rod is hinged and fixed to the clamping plate, and the lower end of the second connecting rod is slidably connected to the abutment plate.

[0015] Preferably, a pin is fixed on the contact plate, and a long groove is provided on the second connecting rod, along which the pin slides.

[0016] Preferably, the distance from the hinge point between the second link and the housing to the uppermost end of the second link is a, and the distance from the hinge point between the second link and the housing to the lowermost end of the second link is b, where a is less than b.

[0017] Compared with the prior art, this utility model has the following advantages: 1) The clamping plate holds the middle part of the insertion rod, and the lower end of the insertion rod is also fixed, thereby fully ensuring the stability of the tool; 2) The driving unit makes the clamping plate move away from the axis of the insertion rod in the initial state, thereby avoiding interference between the clamping plate and the insertion rod during the insertion of the insertion rod into the housing. Attached Figure Description

[0018] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the structure of this utility model after removing the shell;

[0021] Figure 3 This is a schematic diagram of the axial structure of the present invention after removing the housing;

[0022] Figure 4 This is a schematic diagram of the milling cutter body and insertion rod structure of this utility model;

[0023] Figure 5 This is a schematic diagram of the vertical sliding drive clamping plate horizontal sliding structure of the contact plate of this utility model;

[0024] In the diagram: 1. Milling cutter body; 2. Cutting tool; 3. Threaded rod; 4. Insertion rod; 5. Housing; 6. Contact plate; 7. Clamping plate; 8. Slider; 9. First connecting rod; 10. Spring; 11. Guide rod; 12. Second connecting rod; 13. Third connecting rod; 14. Pin. Detailed Implementation

[0025] The following is in conjunction with the appendix Figure 1 —5 provides a further detailed description of the specific embodiments of this utility model.

[0026] Example 1, as Figure 1-5 As shown, a combined diamond milling cutter includes a milling cutter body 1, and a cutting blade 2 is detachably connected to the outer circumference of the milling cutter body 1.

[0027] The lower end of the milling cutter body 1 is connected to a threaded rod 3, and an insertion rod 4 is fixed to the lower end of the threaded rod 3.

[0028] The threaded rod 3 is threadedly connected to the housing 5. The housing 5 is provided with a vertically sliding abutment plate 6 and a horizontally sliding clamping plate 7. The vertical sliding of the abutment plate 6 drives the horizontal sliding of the clamping plate 7.

[0029] The housing 5 is equipped with a drive unit, which is a structure in which the clamping plate 7 is away from the insertion rod 4 in the initial driving state.

[0030] In this device, the blade 2 is made of diamond, which increases the service life of the blade 2. The milling cutter body 1 is also equipped with a chip removal groove to facilitate chip removal during the milling process.

[0031] The upper end of the housing 5 is provided with an internal thread, which engages with the threaded rod 3 to fix the upper end of the threaded rod 3, such as... Figure 1 The image shows the final fixed position.

[0032] The outer diameter of the insertion rod 4 is smaller than that of the threaded rod 3. After the insertion rod 4 is inserted into the housing 5, it comes into contact with the contact plate 6. At this time, the threaded rod 3 begins to engage with the housing 5. The insertion rod 4 moves downward, thereby squeezing the contact plate 6 downward, causing the clamping plate 7 to slide in the direction of the insertion rod 4, thereby locking and fixing the insertion rod 4. The inner side of the clamping plate 7 has an arc-shaped structure and is fixed with rubber, which increases the clamping force and can effectively avoid damage to the insertion rod 4.

[0033] Under normal circumstances, the clamping plate 7 is kept away from the axis of the insertion rod 4 under the action of the drive unit. This prevents the clamping plate 7 from blocking the insertion rod 4 during its downward movement due to accidents, thus preventing the insertion rod 4 from being inserted normally.

[0034] In this device, a guide device for horizontal sliding of the clamping plate 7 and a guide device for vertical sliding of the contact plate 6 are provided inside the housing 5, thereby ensuring the horizontal sliding of the clamping plate 7 and the vertical sliding of the contact plate 6.

[0035] Two clamping plates 7 are provided, and the two clamping plates 7 are symmetrically arranged inside the housing 5.

[0036] Clamping plates 7 are symmetrically arranged on both sides to clamp and fix the insertion rod 4.

[0037] The drive unit includes a tension spring, one end of which is fixedly connected to the housing 5, and the other end of which is fixedly connected to the clamping plate 7.

[0038] In this embodiment, the driving unit is a strong tension spring that drives the clamping plate 7 to move outward, so that there will be no interference with the insertion rod 4.

[0039] In embodiment two, the driving unit includes a horizontally sliding slider 8, with a first connecting rod 9 hinged to the inner end of the slider 8. The first connecting rod 9 is hinged and fixed to the contact plate 6. A spring 10 is fixedly connected to the outer end of the slider 8, and the other end of the spring 10 is fixedly connected to the housing 5. The spring 10 is a structure that drives the slider 8 to slide towards the middle of the housing 5.

[0040] The difference from Embodiment 1 lies in the driving unit. In Embodiment 2, the driving unit drives the contact plate 6 to move upward, thereby moving the clamping plate 7 away from the axis of the insertion rod 4. Through the setting of the spring 10, the slider 8 slides inward. Under the action of the first connecting rod 9, the contact plate 6 is driven to move upward.

[0041] A guide rod 11 is fixed inside the housing 5. The guide rod 11 slides through the slider 8. A spring 10 is fitted on the outer circumference of the guide rod 11.

[0042] The guide rod 11 ensures the horizontal sliding effect of the slider 8.

[0043] In Embodiment 3, based on Embodiment 1 or Embodiment 2, a second connecting rod 12 is hinged inside the housing 5. The middle part of the second connecting rod 12 is hinged and fixed to the housing 5. A third connecting rod 13 is hinged to the upper end of the second connecting rod 12. The other end of the third connecting rod 13 is hinged and fixed to the clamping plate 7. The lower end of the second connecting rod 12 is slidably connected to the contact plate 6.

[0044] This embodiment discloses a method in which the vertical sliding of the contact plate 6 drives the horizontal sliding of the clamping plate 7. The contact plate 6 slides downward, and under the action of the second connecting rod 12, it drives the third connecting rod 13 to swing, thereby causing the clamping plate 7 to slide inward and complete the clamping and fixing of the insertion rod 4.

[0045] A pin 14 is fixed on the contact plate 6, and a long groove is provided on the second connecting rod 12, along which the pin 14 slides.

[0046] The elongated groove allows the pin 14 to slide along the groove, which in turn drives the second connecting rod 12 to swing.

[0047] The distance from the hinge point of the second link 12 to the uppermost point of the housing 5 is a, and the distance from the hinge point of the second link 12 to the lowermost point of the second link 12 is b, where a is less than b.

[0048] The length of a is less than the length of b, so that after the contact plate 6 travels a longer stroke, the clamping plate 7 clamps the insertion rod 4. A turntable is provided on the contact plate 6, and a limiting block is provided on the turntable. The lower end of the insertion rod 4 is provided with a limiting groove that cooperates with the limiting block. When the insertion rod 4 is inserted into the turntable, the limiting block is inserted into the limiting groove, realizing the cooperation between the two. At this time, when the clamping plate 7 is fixed, the lower end of the insertion rod 4 is also stable, thus achieving better fixation.

[0049] With the turntable set up, the length of a is much smaller than the length of b, which allows the position of the contact plate 6 to be higher in the initial state, making it easier for the insertion rod 4 to be inserted into the turntable.

[0050] During installation, the insertion rod 4 is inserted into the housing 5, and the insertion rod 4 contacts the contact plate 6. At this time, the threaded rod 3 begins to engage with the housing 5. Tightening the threaded rod 3 drives the insertion rod 4 to move downward, and the contact plate 6 moves downward accordingly, thereby driving the clamping plate 7 to clamp the insertion rod 4. The deeper the threaded rod 3 moves downward, the greater the clamping force of the clamping plate 7 on the insertion rod 4, thus achieving rapid fixation. In addition, the design of the drive unit ensures that the insertion rod 4 will not interfere with the clamping plate 7 when inserted into the housing 5, improving the efficiency of disassembly.

[0051] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A combined diamond milling cutter, comprising a milling cutter body (1), wherein a cutting blade (2) is detachably connected to the outer circumference of the milling cutter body (1); characterized in that, The lower end of the milling cutter body (1) is connected to a threaded rod (3), and an insertion rod (4) is fixed at the lower end of the threaded rod (3); The threaded rod (3) is threadedly connected to the housing (5). The housing (5) is provided with a vertically sliding contact plate (6) and a horizontally sliding clamping plate (7). The vertical sliding of the contact plate (6) drives the horizontal sliding of the clamping plate (7). The housing (5) is provided with a drive unit, which is a structure in which the clamping plate (7) is far away from the insertion rod (4) in the initial driving state.

2. The combined diamond milling cutter according to claim 1, characterized in that, Two clamping plates (7) are provided, and the two clamping plates (7) are symmetrically arranged inside the housing (5).

3. A combined diamond milling cutter according to claim 1, characterized in that, The drive unit includes a tension spring, one end of which is fixedly connected to the housing (5), and the other end of which is fixedly connected to the clamping plate (7).

4. A combined diamond milling cutter according to claim 1, characterized in that, The driving unit includes a horizontally sliding slider (8), with a first connecting rod (9) hinged to the inner end of the slider (8). The first connecting rod (9) is hinged and fixed to the contact plate (6). A spring (10) is fixedly connected to the outer end of the slider (8). The other end of the spring (10) is fixedly connected to the housing (5). The spring (10) is a structure that drives the slider (8) to slide towards the middle of the housing (5).

5. A combined diamond milling cutter according to claim 4, characterized in that, A guide rod (11) is fixed inside the housing (5). The guide rod (11) slides through the slider (8). A spring (10) is fitted on the outer circumference of the guide rod (11).

6. A combined diamond milling cutter according to claim 1, 3, or 4, characterized in that, The housing (5) is hinged with a second connecting rod (12). The middle part of the second connecting rod (12) is hinged and fixed to the housing (5). The upper end of the second connecting rod (12) is hinged with a third connecting rod (13). The other end of the third connecting rod (13) is hinged and fixed to the clamping plate (7). The lower end of the second connecting rod (12) is slidably connected to the contact plate (6).

7. A combined diamond milling cutter according to claim 6, characterized in that, A pin (14) is fixed on the contact plate (6), and a long groove is provided on the second connecting rod (12), along which the pin (14) slides.

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