A rotary cutting head device

Abstract

The application discloses a rotary cutting cutter head device and relates to the technical field of wiring harness processing. The rotary cutting cutter head device comprises a frame body, one end of the frame body is provided with a cutter disc mounting seat, the other end of the frame body is provided with a driving shaft mounting seat, the cutter disc mounting seat and the driving shaft mounting seat are connected through three supporting frames, guide grooves are formed in the three supporting frames, the guide grooves penetrate through the cutter disc mounting seat and the driving shaft mounting seat and equally divide the cutter disc mounting seat into three parts, blade transmission rods are hingedly connected in the guide grooves, the one ends of the three blade transmission rods close to the cutter disc mounting seat are provided with gear hobbing cutters, the centers of the three gear hobbing cutters are located on the same circle, and the other ends of the three blade transmission rods are slidably connected with feed pushing blocks. Through the cooperation of the blade transmission rods, the feed pushing blocks and the gear hobbing cutters, the problem of low efficiency in cutting off the outer skin of a high-voltage shielding cable and an aluminum foil layer is solved.

Description

Technical Field

[0001] This invention relates to the field of wire harness processing technology, specifically to a rotary cutting head device. Background Technology

[0002] Currently, the processing technology for high-voltage shielded cables generally includes steps such as stripping the outer sheath, removing the aluminum foil, cutting the mesh, flipping the mesh, and stripping the inner sheath. Corresponding processing equipment on the market includes five-station and three-station processing equipment. The aluminum foil removal station of the five-station equipment uses laser cutting of aluminum foil, which is affected by many factors and cannot reliably and effectively remove the aluminum foil layer, and the efficiency is not high. The three-station equipment uses traditional outer sheath stripping equipment to remove both the outer sheath and the aluminum foil layer at the same time, which carries the risk of cutting the shielding mesh. The traditional outer sheath stripping station uses a rotary cutting mechanism, which can only effectively remove the outer sheath separately and cannot cut the aluminum foil layer at the same time without cutting the braided layer. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a rotary cutting head device to solve the problems of cutting the shielding mesh and low work efficiency when cutting the outer sheath and aluminum foil layer of existing high-voltage shielded cables.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows: a rotary cutting head device, including a frame, a cutter head mounting seat at one end of the frame, and a drive shaft mounting seat at the other end of the frame. The cutter head mounting seat and the drive shaft mounting seat are connected by three support frames. Each of the three support frames has a guide groove, which passes through the cutter head mounting seat and the drive shaft mounting seat, dividing the cutter head mounting seat into three equal parts. Each of the three guide grooves has a blade drive rod hinged in it. Each of the three blade drive rods has a hobbing cutter at one end near the cutter head mounting seat. The centers of the three hobbing cutters are located on the same circle. The other ends of the three blade drive rods are slidably connected to a feed pusher. When the feed pusher moves closer to the drive shaft mounting seat, the diameter of the circle containing the centers of the three hobbing cutters gradually decreases. When the feed pusher moves away from the drive shaft mounting seat, the diameter of the circle containing the centers of the three hobbing cutters gradually increases.

[0005] A further improvement of the present invention is that the blade transmission rod includes a first rod body and a second rod body, the first rod body is fixed to the gear hobbing cutter, and an obtuse angle is formed between the first rod body and the second rod body toward the guide groove.

[0006] A further improvement of the present invention is that: each of the three support frames has an adjustment hole at one end near the drive shaft mounting seat, the adjustment hole is connected to the guide groove, an eccentric adjustment shaft is rotatably connected in the adjustment hole, a fixing hole is provided on one side of each of the three guide grooves, the fixing hole is connected to the adjustment hole, a hinge hole is provided at the connection between the first rod and the second rod, the eccentric adjustment shaft passes through the hinge hole and hinges the blade transmission rod in the guide groove.

[0007] A further improvement of the present invention is that the eccentric adjustment shaft includes a first shaft and a second shaft, the diameter of the second shaft is smaller than the diameter of the first shaft, and the axis of the second shaft is parallel to the axis of the first shaft.

[0008] A further improvement of the present invention is that: the feed push block is provided with a drive shaft hole, and three limiting wings are evenly arranged on the outer side of the drive shaft hole. Each of the three limiting wings is provided with an oblique sliding groove, and the three blade transmission rods are respectively slidably connected in the three oblique sliding grooves.

[0009] A further improvement of the present invention is that cam bearings slide within each of the three oblique grooves, and the cam bearings are hinged to the blade transmission rod.

[0010] A further improvement of the present invention is that: a cutter head mounting seat is fixed on the cutter head mounting seat, a first wire inlet hole is opened in the center of the cutter head mounting seat, three limiting grooves are evenly opened on the outer side of the first wire inlet hole, the three limiting grooves correspond one-to-one with three guide grooves, a hobbing cutter fixing block slides in each of the three limiting grooves, a hobbing cutter shaft is provided on each of the hobbing cutter fixing blocks, and the three hobbing cutters can all perform circumferential motion around the corresponding hobbing cutter shaft.

[0011] A further improvement of the present invention is that the hobbing cutter has a toothed circumference, forming a toothed cutting edge, which can contact and connect with a cable.

[0012] A further improvement of the present invention is that: a retaining hole is provided at one end of the hobbing cutter fixing block near the guide groove, and a retaining head is provided at one end of the blade transmission rod near the cutter head mounting seat, and the retaining head is adapted to the retaining hole.

[0013] A further improvement of the present invention is that a cutter head fixing plate is fixed on the outer side of the cutter head mounting base, and a second wire inlet hole is provided on the cutter head fixing plate, the second wire inlet hole being adapted to the first wire inlet hole.

[0014] Due to the adoption of the above technical solution, the beneficial effects achieved by this invention are:

[0015] This invention, through the cooperation of the frame, blade transmission rod, and feed pusher, gradually removes the outer skin and aluminum foil layer by driving the feed pusher, avoiding cutting the shielding mesh and improving production efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of a rotary cutting head device according to the present invention;

[0017] Figure 2 This is a schematic diagram of the overall structure of a rotary cutting head device according to the present invention;

[0018] Figure 3 This is a top view of the blade mounting base and blade mounting disc of a rotary cutting blade device according to the present invention;

[0019] Figure 4 This is a front view of the blade drive rod of a rotary cutting head device according to the present invention;

[0020] Figure 5 This is a schematic diagram of the overall structure of the eccentric adjustment shaft of the rotary cutting head device of the present invention;

[0021] Figure 6 This is a schematic diagram of a toothed cutter cutting a cable using a rotary cutting head device according to the present invention;

[0022] Figure 7 This is a preferred installation diagram of a rotary cutting head device according to the present invention.

[0023] The attached diagram lists the components represented by each number as follows:

[0024] 1. Frame; 11. Tool holder; 12. Drive shaft holder; 13. Support frame; 14. Adjustment hole; 2. Guide groove; 21. Fixing hole; 3. Tool transmission rod; 31. First rod body; 32. Second rod body; 33. Hinge hole; 34. Chuck; 4. Hobbing cutter; 41. Toothed cutting edge; 5. Feed push block; 51. Drive shaft hole; 52. Limiting wing; 53. Angled slide; 54. Cam bearing; 6. Eccentric adjustment shaft; 61. First shaft body; 62. Second shaft; 7. Cutter head mounting base; 71. First inlet hole; 72. Limiting groove; 73. Hob cutter fixing block; 74. Clamping hole; 8. Cutter head fixing plate; 81. Second inlet hole; 9. Hob cutter shaft; 10. Cable; 101. Cable sheath; 102. Aluminum foil layer; 103. Shielding mesh layer; 104. Cutting push rod; 105. Motor; 106. Transmission belt; 107. Rotary cutting spindle; 108. Connecting plate; 109. Lead screw; 110. Motor. Detailed Implementation

[0025] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0026] The present invention will be described in detail with reference to the following embodiments:

[0027] Example

[0028] refer to Figure 1-6As shown, a rotary cutting head device includes a frame 1. One end of the frame 1 is provided with a cutter head mounting seat 11, and the other end is provided with a drive shaft mounting seat 12. The cutter head mounting seat 11 and the drive shaft mounting seat 12 are connected by three support frames 13. The three support frames 13 and the cutter head mounting seat 11 are integrally formed. The drive shaft mounting seat 12 is fixed to the three support frames 13 by bolts. Each of the three support frames 13 has a guide groove 2 that penetrates the cutter head mounting seat 11 and the drive shaft mounting seat 12, dividing the cutter head mounting seat 11 into three equal parts. Each guide groove 2 has a blade drive rod 3 hinged within it. The three blade drive rods 3 are close to the cutter head mounting seat 11. Each end is equipped with a hobbing cutter 4, and the centers of the three hobbing cutters 4 are located on the same circle. The other ends of the three blade drive rods 3 are slidably connected to a feed pusher block 5. Specifically, the feed pusher block 5 has a drive shaft hole 51, and three limiting wings 52 are evenly distributed on the outer side of the drive shaft hole 51. Each of the three limiting wings 52 has an oblique groove 53. In a preferred application, the extension lines of the three oblique grooves 53 will eventually intersect in the direction close to the frame 1, forming an intersection point. A cam bearing 54 slides in each of the three oblique grooves 53. The cam bearing 54 is hinged to the blade drive rod 3. When the feed pusher block 5 moves, the three blade drive rods 3 slide in the three oblique grooves 53.

[0029] In the above structure, such as Figure 4 As shown, the blade drive rod 3 includes a first rod body 31 and a second rod body 32. The first rod body 31 is fixed to the gear hobbing cutter 4, and the first rod body 31 and the second rod body 32 form an obtuse angle towards the guide groove 2. Figure 2 As shown, each of the three support frames 13 has an adjustment hole 14 at one end near the drive shaft mounting base 12. The adjustment hole 14 is connected to the guide groove 2. An eccentric adjustment shaft 6 is rotatably connected inside the adjustment hole 14. A fixing hole 21 is provided on one side of each of the three guide grooves 2. The fixing hole 21 is connected to the adjustment hole 14. A hinge hole 33 is provided at the connection between the first rod body 31 and the second rod body 32. The eccentric adjustment shaft 6 passes through the hinge hole 33 and hinges the blade transmission rod 3 in the guide groove 2. In use, a nut is provided in the fixing hole 21 to fix the eccentric adjustment shaft 6. With this structure, when the three blade transmission rods 3 and the feed push block 5 are relatively displaced, in the first case, when the feed push block 5 moves closer to the drive shaft mounting base 12, the diameter of the circle where the center of the three hobbing cutters 4 is located gradually decreases; in the second case, when the feed push block 5 moves away from the drive shaft mounting base 12, the diameter of the circle where the center of the three hobbing cutters 4 is located gradually increases. This setting is convenient for adapting to cables of different diameters.

[0030] To better ensure that the three hobbing cutters 4 are positioned on the same circle, this application discloses the specific structure of the eccentric adjustment shaft 6, such as... Figure 5As shown, it includes a first shaft 61 and a second shaft 62. The diameter of the second shaft 62 is smaller than the diameter of the first shaft 61, and the axis of the second shaft 62 is parallel to the axis of the first shaft 61. With this structure, in use, the second shaft 63 is located in the hinge hole 33. By rotating the first shaft 61, the blade transmission rod 3 is displaced, thereby adjusting the position of the hobbing cutter 4.

[0031] To better secure the three hobbing cutters 4, such as Figure 3 As shown, a cutter head mounting base 7 is fixed on the cutter head mounting base 11. A first inlet hole 71 is opened at the center of the cutter head mounting base 7. Three limiting grooves 72 are evenly distributed on the outer side of the first inlet hole 71. The three limiting grooves 72 correspond one-to-one with three guide grooves 2. A hobbing cutter fixing block 73 slides within each of the three limiting grooves 72. Three hobbing cutters 4 are respectively fixed to the three hobbing cutter fixing blocks 73 via a hobbing cutter shaft 9. Specifically, the hobbing cutter 4 has a toothed circumference, forming a toothed cutting edge 41. The hobbing cutter 4 can rotate relative to the axis of the hobbing cutter shaft 9. With this structure, during use, such as... Figure 6 As shown, when the hobbing teeth 41 of the hobbing cutter 4 enter the outer sheath 101 of the cable 10 and come into contact with the aluminum foil layer 102, they roll and pierce the aluminum foil layer 102 without cutting the lower shielding mesh 103.

[0032] In order to achieve cooperation with the blade drive rod 3, in the above structure, the hob fixing block 73 has a locking hole 74 at one end near the guide groove 2, and the blade drive rod 3 has a locking head 34 at one end near the cutter head mounting seat 7. The locking head 34 is compatible with the locking hole 74. With this structure, different models of hobs 4 can be replaced as needed.

[0033] In use, a cutter head fixing plate 8 is fixed on the outside of the cutter head mounting base 7. A second wire inlet hole 81 is provided on the cutter head fixing plate 8, which is compatible with the first wire inlet hole 71.

[0034] In practical use, to achieve relative movement between the cable 10 and the toothed cutter 4, thereby cutting the aluminum foil layer 102 and improving work efficiency, it can be done as follows: Figure 7The specific structure shown includes a rotary cutting spindle 107 fixed inside the drive shaft mounting base 12. The rotary cutting spindle 107 is a hollow structure. The feed pusher block 5 is connected to the rotary cutting spindle 107. One end of the rotary cutting spindle 107 is connected to a transmission belt 106, which is driven to rotate by a first motor 105. Inside the rotary cutting spindle 107, there is a feed pusher 104 that can move back and forth. One end of the feed pusher 104 passes through the rotary cutting spindle 107 and is connected to the feed pusher block 5. The other end of the feed pusher 104 is connected to a lead screw 109 through a connecting plate 108. The lead screw 109 is driven by a second motor 110 to move the connecting plate 108. When the connecting plate 108 moves the feed pusher 104, the feed pusher block 5 is displaced, and the distance between the three hobbing cutters 4 is adjusted by the blade transmission rod 3, thus cutting the aluminum foil layer 102.

[0035] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0036] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A helical cutter head apparatus, characterized by, The device includes a frame (1), one end of which is provided with a cutter head mounting seat (11), and the other end of which is provided with a drive shaft mounting seat (12). The cutter head mounting seat (11) and the drive shaft mounting seat (12) are connected by three support frames (13). Each of the three support frames (13) is provided with a guide groove (2). The guide groove (2) passes through the cutter head mounting seat (11) and the drive shaft mounting seat (12) and divides the cutter head mounting seat (11) into three equal parts. Each guide groove (2) is hinged with a blade drive. The rod (3) and the three blade drive rods (3) are each equipped with a hobbing cutter (4) at one end near the cutter head mounting seat (11). The centers of the three hobbing cutters (4) are located on the same circle. The other ends of the three blade drive rods (3) are connected to a feed pusher (5). When the feed pusher (5) moves closer to the drive shaft mounting seat (12), the diameter of the circle where the centers of the three hobbing cutters (4) are located gradually decreases. When the feed pusher (5) moves away from the drive shaft mounting seat (12), the diameter of the circle where the centers of the three hobbing cutters (4) are located gradually increases. The blade transmission rod (3) includes a first rod body (31) and a second rod body (32). The first rod body (31) is fixed to the gear hobbing cutter (4). An obtuse angle is formed between the first rod body (31) and the second rod body (32) towards the guide groove (2). Each of the three support frames (13) has an adjustment hole (14) at one end near the drive shaft mounting base (12). The adjustment hole (14) is connected to the guide groove (2). An eccentric adjustment shaft (6) is rotatably connected in the adjustment hole (14). A fixing hole (21) is provided on one side of each of the three guide grooves (2). The fixing hole (21) is connected to the adjustment hole (14). A hinge hole (33) is provided at the connection between the first rod body (31) and the second rod body (32). The eccentric adjustment shaft (6) passes through the hinge hole (33) and hinges the blade transmission rod (3) in the guide groove (2).

2. The plunge-cut cutter head apparatus of claim 1, wherein, The eccentric adjustment shaft (6) includes a first shaft (61) and a second shaft (62). The diameter of the second shaft (62) is smaller than the diameter of the first shaft (61), and the axis of the second shaft (62) is parallel to the axis of the first shaft (61).

3. The plunge-cut cutter head apparatus of claim 1, wherein, The feed push block (5) has a drive shaft hole (51) and three limiting wings (52) are evenly arranged on the outside of the drive shaft hole (51). Each of the three limiting wings (52) has an oblique groove (53) and the three blade transmission rods (3) are respectively rolled in the three oblique grooves (53).

4. The rotary cutting head device according to claim 3, characterized in that, Cam bearings (54) roll within each of the three inclined slides (53), and the cam bearings (54) are hinged to the blade drive rod (3).

5. The plunge-cut cutter head apparatus of claim 1, wherein, The cutter head mounting base (11) is fixed with a cutter head mounting base (7). The cutter head mounting base (7) has a first inlet hole (71) at its center. Three limiting grooves (72) are evenly provided on the outer side of the first inlet hole (71). The three limiting grooves (72) correspond one-to-one with the three guide grooves (2). A hobbing cutter fixing block (73) slides in each of the three limiting grooves (72). A hobbing cutter shaft (9) is provided on each of the hobbing cutter fixing blocks (73). The three hobbing cutters (4) can all make circular motion around the corresponding hobbing cutter shaft (9).

6. The plunge-cut cutter head apparatus of claim 5, wherein, The hobbing cutter (4) has a toothed circumference, forming a toothed cutting edge (41), which can be connected to the cable.

7. The plunge-cut cutter head apparatus of claim 5, wherein, The hobbing cutter fixing block (73) has a locking hole (74) at one end near the guide groove (2), and the blade transmission rod (3) has a locking head (34) at one end near the cutter head mounting seat (7), and the locking head (34) is adapted to the locking hole (74).

8. The plunge-cut cutter head apparatus of claim 5, wherein, The cutter head mounting base (7) is fixed with a cutter head fixing plate (8) on the outside. The cutter head fixing plate (8) is provided with a second inlet hole (81), which is adapted to the first inlet hole (71).

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