Combined cutter head

Abstract

The utility model provides a combined cutterhead which comprises a cutter handle, a cutterhead installation portion is arranged at the front end of the cutter handle, a second cutterhead and a first gasket, the first cutterhead, the second gasket and a third cutterhead are sequentially installed on the cutterhead installation portion, a plurality of first blades are arranged on the circumference of the first cutterhead, the first blades are three-face-edge blades and can conduct cutting on three faces, and the third cutterhead is a three-face-edge blade. A plurality of second blades are arranged on the outer circumference of the side, facing the first cutter disc, of the second cutter disc in the circumferential direction, the second blades are two-face-edge blades and can cut the two faces, a plurality of third blades are arranged on the outer circumference of the side, facing the first cutter disc, of the third cutter disc in the circumferential direction, the third blades are two-face-edge blades and can cut the two faces of the third cutter disc. And cutting on two surfaces can be carried out. The combined cutter head can complete inside and outside opening of the joint fork at a time, machining steps are reduced, machining efficiency and precision are improved, the blades can be replaced, and the cutter using cost is saved.

Description

Technical Field

[0001] This utility model relates to the field of cutting tool technology, and in particular to a combined cutter head for opening and machining of a fork. Background Technology

[0002] A scissor is a mechanical component used to transmit and convert power. It is typically made of metal and possesses a certain strength and rigidity, capable of withstanding specific loads and operating temperatures. Scissors are widely used in industrial production, agricultural machinery, automobiles, aerospace, and other fields, serving as a crucial interface for connecting mechanical transmission devices. For example... Figure 1 As shown, the fork 100 is U-shaped, with an inner side 101 and an outer side 102. In the prior art, the opening of the U-shaped groove, inner side, and outer side is performed separately using different cutting tools. Each tool change requires tool alignment to ensure the machining accuracy of the fork, making the machining process cumbersome, demanding high-performance equipment, and resulting in low production efficiency due to separate machining. Therefore, there is an urgent need to provide a combined cutter head that can guarantee machining accuracy and high production efficiency. Utility Model Content

[0003] The technical problem to be solved by this utility model is: in order to overcome the shortcomings of the prior art, this utility model provides a combined cutter disc, which can complete the opening of the fork section inside and out in one go.

[0004] The technical solution adopted by this utility model to solve its technical problem is: a combined cutter head, including a handle, a first cutter head, a second cutter head, a third cutter head, a first washer, and a second washer. The front end of the handle is provided with a cutter head mounting part. The first cutter head is mounted on the cutter head mounting part. The second and third cutter heads are respectively disposed on the cutter head mounting parts on both sides of the first cutter head. The first washer is disposed between the first and second cutter heads to limit the distance between them. The second washer is disposed between the first and third cutter heads to limit the distance between them. The first cutter head has a plurality of first blades on its circumference. The first blades are three-sided blades capable of cutting on three sides. The second cutter head has a plurality of second blades on its outer circumference facing the first cutter head. The second blades are two-sided blades capable of cutting on two sides. The third cutter head has a plurality of third blades on its outer circumference facing the first cutter head. The third blades are two-sided blades capable of cutting on two sides.

[0005] Preferably, the first blades are in eight groups and are evenly distributed along the circumference on the first cutter disc. Each group includes two first blades arranged side by side on the circumferential surface of the first cutter disc.

[0006] Preferably, the second blades are six, evenly distributed on the second cutter head on the side facing the first cutter head; the third blades are also six, evenly distributed on the third cutter head on the side facing the first cutter head.

[0007] Further, in order to cool the blades and prolong the service life of the blades, a cooling structure is further provided, which comprises a cooling channel penetrating through the shank along the axis.

[0008] Further, a threaded hole is arranged at the front end of the cutter head mounting portion, for mounting a locking member for locking the first cutter head, the second cutter head and the third cutter head on the cutter head mounting portion.

[0009] Further, in order to assemble the first cutter head and the cutter head mounting portion, a first shaft hole is arranged in the middle of the first cutter head, a first key groove is arranged on the side wall of the first shaft hole, and the first cutter head is keyed with the cutter head mounting portion through the first key groove.

[0010] Further, in order to assemble the second cutter head and the cutter head mounting portion, a second shaft hole is arranged in the middle of the second cutter head, a second key groove is arranged on the side wall of the second shaft hole, and the second cutter head is keyed with the cutter head mounting portion through the second key groove.

[0011] Further, in order to assemble the third cutter head and the cutter head mounting portion, a third shaft hole is arranged in the middle of the third cutter head, a third key groove is arranged on the side wall of the third shaft hole, and the third cutter head is keyed with the cutter head mounting portion through the third key groove.

[0012] In order to facilitate the installation of the gasket, a first boss is arranged on the two side end faces of the first cutter head around the first shaft hole, a second boss is arranged on the two side end faces of the second cutter head around the second shaft hole, and a third boss is arranged on the two side end faces of the third cutter head around the third shaft hole, the two side end faces of the first gasket are respectively attached to the first boss and the second boss on the opposite sides of the first cutter head and the second cutter head, and the two side end faces of the second gasket are respectively attached to the first boss and the third boss on the opposite sides of the first cutter head and the third cutter head.

[0013] Further, a first ring groove is arranged on the two side end faces of the first cutter head around the first boss, a second ring groove is arranged on the second cutter head on the side facing the first cutter head, and the second ring groove is arranged on the second cutter head around the second boss, and a third ring groove is arranged on the third cutter head on the side facing the first cutter head, and the third ring groove is arranged on the third cutter head around the third boss.

[0014] The combined cutter head provided by the utility model can complete the opening of the inner and outer splines at one time, one-time forming reduces the processing steps, and significantly improves the processing efficiency and processing precision; the blades can be replaced, and the cost of using the cutter is saved. BRIEF DESCRIPTION OF DRAWINGS

[0015] The utility model will be further described below in combination with the drawings and examples.

[0016] Figure 1 Is the structure schematic diagram of the yoke to be processed.

[0017] Figure 2 Is the structure schematic diagram of the combined cutter head of the utility model.

[0018] Figure 3 Is the structure schematic diagram of the tool shank.

[0019] Figure 4 Is the structure schematic diagram of the first cutter head.

[0020] Figure 5 Is the structure schematic diagram of the first cutter head.

[0021] Figure 6 Is the structure schematic diagram of the second cutter head.

[0022] Figure 7 Is the structure schematic diagram of the second cutter head.

[0023] Figure 8 Is the structure schematic diagram of the third cutter head.

[0024] Figure 9 Is the structure schematic diagram of the third cutter head.

[0025] Figure 10 Is the schematic diagram of the processing process.

[0026] In the drawing: 100, yoke, 101, inner side surface, 102, outer side surface, 1, tool shank, 1.1, cutter head mounting part, 1.2, limiting part, 1.3, clamping part, 1.4, threaded hole, 1.5, cooling channel, 2, first cutter head, 2.1, first key groove, 2.2, first shaft hole, 2.3, first boss, 2.4, first ring groove, 3, second cutter head, 3.1, second key groove, 3.2, second shaft hole, 3.3, second boss, 3.4, second ring groove, 4, third cutter head, 4.1, third key groove, 4.2, third shaft hole, 4.3, third boss, 4.4, third ring groove, 5, first washer, 6, second washer. DETAILED DESCRIPTION

[0027] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention. Therefore, they only show the components, orientations, and references (e.g., up, down, left, right, etc.) relevant to the present invention and are intended only to aid in the description of the features in the drawings. Therefore, the following specific embodiments are not intended to be restrictive, and the scope of the claimed subject matter is defined solely by the appended claims and their equivalents.

[0028] like Figures 2-9 As shown, a combined cutter head of this utility model includes a handle 1, a first cutter head 2, a second cutter head 3, a third cutter head 4, a first washer 5, and a second washer 6. The front end of the handle 1 is provided with a cutter head mounting part 1.1. The first cutter head 2 is mounted on the cutter head mounting part 1.1. The second cutter head 3 and the third cutter head 4 are respectively disposed on the cutter head mounting parts 1.1 on both sides of the first cutter head 2. The first washer 5 is disposed between the first cutter head 2 and the second cutter head 3 to limit the distance between them. The second washer 6 is disposed between the first cutter head 2 and the third cutter head 4 to limit the distance between them. The first cutter head 2 has a plurality of first blades on its circumference. The first blades are three-sided blades and can perform cutting on three sides. The second cutter head 3 has a plurality of second blades on its outer circumference facing the first cutter head 2. The second blades are two-sided blades and can perform cutting on two sides. The third cutter head 4 has a plurality of third blades on its outer circumference facing the first cutter head 2. The third blades are two-sided blades and can perform cutting on two sides.

[0029] like Figure 3 As shown, the tool holder 1 includes a tool disc mounting part 1.1, a limiting part 1.2, and a clamping part 1.3 integrally connected from front to back. The outer diameter of the limiting part 1.2 is larger than the outer diameter of the tool disc mounting part 1.1, forming a stepped structure. This allows the stepped surface to engage with the third boss 4.3, thus limiting and positioning the entire tool disc in the axial direction. The clamping part 1.3 is a conventional design, generally tapered. The front end of the tool disc mounting part 1.1 has a threaded hole 1.4 for installing a locking component that secures the first tool disc 2, the second tool disc 3, and the third tool disc 4 to the tool disc mounting part 1.1. In this embodiment, the locking component includes, but is not limited to, screws, bolts, etc., and washers can also be used for auxiliary locking. A cooling structure is also included, comprising a cooling channel 1.5 that extends along the axis through the tool holder 1. In this embodiment, the length L1 of the cutter head mounting part 1.1 is 78.7 mm and the outer diameter is 32 mm. The length L2 of the limiting part 1.2 is 30 mm and the outer diameter is 40 mm. The length L3 from the end of the limiting part 1.2 to the end of the clamping part 1.3 is 92.4 mm. The length L4 of the clamping part 1.3 is 65.4 mm and the cone angle is 16.59°.

[0030] As shown in Figure 4 and Figure 5 , the first blade is eight groups, and is evenly distributed on the first cutter head 2 along the circumference, each group includes two first blades, and is arranged side by side on the circumferential surface of the first cutter head 2. The middle of the first cutter head 2 is provided with a first shaft hole 2.2, a first key groove 2.1 is arranged on the side wall of the first shaft hole 2.2, and the first cutter head 2 is key matched with the cutter head mounting portion 1.1 through the first key groove 2.1. In order to facilitate the installation of the gasket, the first cutter head 2 is provided with a first boss 2.3 on the two side end faces of the first cutter head 2 outside the first shaft hole 2.2, and a first ring groove 2.4 is arranged on the two side end faces of the first cutter head 2 outside the first boss 2.3. In the embodiment, the diameter φ1 of the working surface of the first blade in the circumferential direction is 100±0.1mm, the hole diameter φ2 of the first shaft hole 2.2 is 32mm, the outer diameter φ3 of the first boss 2.3 is 40mm, and the distance H1 between the working surfaces of the two side faces of the first blade is 25.25±0.05mm.

[0031] As shown in Figure 6 and Figure 7 , the second blade is six, which is evenly distributed on the second cutter head 3 towards the first cutter head 2; the middle of the second cutter head 3 is provided with a second shaft hole 3.2, a second key groove 3.1 is arranged on the side wall of the second shaft hole 3.2, and the second cutter head 3 is key matched with the cutter head mounting portion 1.1 through the second key groove 3.1. The second cutter head 3 is provided with a second boss 3.3 on the two side end faces outside the second shaft hole 3.2, a second ring groove 3.4 is arranged on the second cutter head 3 towards the first cutter head 2, and the second ring groove 3.4 is arranged on the second cutter head 3 outside the second boss 3.3. In the embodiment, the outer diameter φ4 of the second cutter head 3 is 100±0.57mm, the hole diameter φ5 of the second shaft hole 3.2 is 32mm, the outer diameter of the second boss 3.3 is the same as the outer diameter φ3 of the first boss 2.3, which is also 40mm, the diameter φ6 of the working surface of the second blade side face is 99±0.1mm, the distance H2 from the outer end face of the second cutter head 3 to the working point of the second blade is 17mm, and the distance H3 between the two second bosses 3.3 is 18.1mm.

[0032] As shown in Figure 8 and Figure 9As shown, the third blades are all six, evenly distributed on the third blade disc 4 on the side facing the first blade disc 2. The third blade disc 4 is provided with a third shaft hole 4.2 in the middle, and the side wall of the third shaft hole 4.2 is provided with a third key groove 4.1, and the third blade disc 4 is keyed with the blade disc mounting part 1.1 through the third key groove 4.1. The third blade disc 4 is provided with a third boss 4.3 on both sides of the outer periphery of the third shaft hole 4.2, and a third ring groove 4.4 is provided on the third blade disc 4 facing the first blade disc 2, and the third ring groove 4.4 is provided on the third blade disc 4 outside the third boss 4.3. In this embodiment, the outer diameter φ9 of the third blade disc 4 is 100±0.57mm, the hole diameter φ8 of the third shaft hole 4.2 is 32mm, the outer diameter of the third boss 4.3 is the same as the outer diameter φ3 of the first boss 2.3, which is also 40mm, the working surface diameter φ7 of the third blade side is 99±0.1mm, the distance H4 from the outer end face of the third blade disc 4 to the working point of the third blade is 17mm, and the distance H5 between the two third bosses 4.3 is 18.1mm.

[0033] As shown in the figure, Figure 2 The two side end faces of the first gasket 5 are respectively fitted with the first boss 2.3 and the second boss 3.3 on the opposite sides of the first blade disc 2 and the second blade disc 3, and the two side end faces of the second boss 3.3 are respectively fitted with the first boss 2.3 and the third boss 4.3 on the opposite sides of the first blade disc 2 and the third blade disc 4.

[0034] Working principle:

[0035] As shown in the figure, Figure 10 The combined blade disc is composed of the second blade disc 3 and the third blade disc 4 installed on the left and right sides of the two-sided blade, and the first blade disc 2 installed in the middle and provided with a three-sided blade, and the middle is spaced and positioned by a gasket. The yoke 100 to be processed is fixed on the clamp and installed on the workbench of the machining center, the combined blade disc is installed and assembled on the main shaft of the machining center, the first blade disc 2 is aligned with the area of the inner side of the yoke 100, the second blade disc 3 and the third blade disc 4 are respectively aligned with the outer side of the yoke 100, then the machining center is started, and the yoke 100 is processed to open the slot, which can complete the inner and outer opening of the yoke 100 at one time.

[0036] Based on the above ideal embodiment according to the utility model, through the above description, relevant staff can make various changes and modifications without deviating from the scope of the utility model. The technical scope of the utility model is not limited to the content in the specification, and the technical scope must be determined according to the scope of claims.

Claims

1. A combination cutter head characterized by: The utility model provides a cutting tool, including handle, first cutter, second cutter, third cutter, first washer and second washer, the front end of handle is equipped with cutter installation part, first cutter is installed on cutter installation part, second cutter and third cutter are arranged on the cutter installation part of first cutter two sides respectively, first washer is arranged between first cutter and second cutter for limiting the interval between them, second washer is arranged between first cutter and third cutter for limiting the interval between them, the circumference of first cutter is equipped with a plurality of first blade, first blade is three -edged blade, can carry out three face cutting, the outer circumference of the side of second cutter to first cutter is equipped with a plurality of second blade along the circumference, second blade is two -edged blade, can carry out two face cutting, the outer circumference of the side of third cutter to first cutter is equipped with a plurality of third blade along the circumference, third blade is two -edged blade, can carry out two face cutting.

2. The combination cutter head of claim 1 wherein: The first blade is eight groups, and is evenly distributed on the first cutter along the circumference, each group includes two first blades, and is arranged side by side on the circumferential surface of the first cutter.

3. The combination cutter head of claim 1 wherein: The second blade is six, and is evenly distributed on the second cutter on the side to the first cutter along the circumference, and the third blade is six, and is evenly distributed on the third cutter on the side to the first cutter along the circumference.

4. The combination cutter head of claim 1 wherein: The utility model also includes a cooling structure, the cooling structure includes a cooling channel, the cooling channel penetrates the handle along the axis.

5. The combination cutter head of claim 1 wherein: The front end of the cutter installation part is provided with a threaded hole for installing a locking member for locking the first cutter, the second cutter and the third cutter on the cutter installation part.

6. The combination cutter head of claim 1 wherein: The first cutter is provided with a first shaft hole in the middle, the side wall of the first shaft hole is provided with a first key groove, and the first cutter is keyed with the cutter installation part through the first key groove.

7. The combination cutter head of claim 6 wherein: The second cutter is provided with a second shaft hole in the middle, the side wall of the second shaft hole is provided with a second key groove, and the second cutter is keyed with the cutter installation part through the second key groove.

8. The combination cutter head of claim 7 wherein: The third cutter is provided with a third shaft hole in the middle, the side wall of the third shaft hole is provided with a third key groove, and the third cutter is keyed with the cutter installation part through the third key groove.

9. The combination cutter head of claim 8 wherein: The first cutter is provided with a first boss on the end surface of both sides of the first cutter outside the first shaft hole, the second cutter is provided with a second boss on the end surface of both sides of the second cutter outside the second shaft hole, the third cutter is provided with a third boss on the end surface of both sides of the third cutter outside the third shaft hole, the first washer is fitted with the first boss and the second boss on the opposite sides of the first cutter and the second cutter, and the second washer is fitted with the first boss and the third boss on the opposite sides of the first cutter and the third cutter.

10. The combination cutter head of claim 9 wherein: The first cutter is provided with a first ring groove on the end surface of both sides of the first cutter outside the first boss, the second cutter on the side to the first cutter is provided with a second ring groove, and the second ring groove is provided on the second cutter outside the second boss, and the third cutter on the side to the first cutter is provided with a third ring groove, and the third ring groove is provided on the third cutter outside the third boss.

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