Hot push broach, tool apron and friction welding machine

Abstract

The utility model provides a hot push broach, a tool apron and a friction welding machine. The hot push broach comprises at least three tool bits of the same structure. Wherein the side walls of the three tool bits are all of an arc-shaped structure, and the end faces of the two ends of the three tool bits abut against each other to form a circular ring body; the upper surface of each tool bit is arranged to be an inclined face, and a height difference exists between every two adjacent inclined faces. An inclined plane tearing part is arranged on the high side of the inclined plane and close to the outer edge of the tool bit; the inner edge of the upper surface of each tool bit is a main cutting edge, and the upper edge of the upper surface of each tool bit is an auxiliary cutting edge. According to the utility model, the flash circular ring generated in the friction welding process of the axle housing body and the shaft head can be torn into a plurality of blocks, the operation process is simple, time and labor are saved, and the efficiency is high.

Description

Technical Field

[0001] The present application relates to the field of mechanical processing technology, and in particular to a hot pusher, a tool holder and a friction welding machine. Background Art

[0002] At present, the flash ring waste generated on the outer circle of the rear axle housing body and the shaft head of a commercial vehicle through friction welding needs to be removed. The conventional removal method is turning on a lathe. This method has a cumbersome operation process, a long time, and a high time cost. Another method is to use a punch to remove the flash ring waste, but the punched flash ring is sleeved on the outer surface of the shaft head as a whole, and the ring needs to be broken manually using tools. In addition, the surface of the shaft head is easily damaged during the processing, the labor intensity of the workers is high, and the production efficiency is low.

[0003] Based on the above content, the present application urgently needs a hot pusher, a tool holder and a friction welding machine that can quickly, save time and effort, and efficiently complete the separation of the flash ring and the shaft head without damaging the shaft head. Utility Model Content

[0004] The purpose of this application is to provide a hot pusher, a tool holder and a friction welding machine, which can quickly, time-saving, labor-saving and efficiently complete the process of separating the flash ring from the shaft head without damaging the shaft head. The specific scheme is as follows:

[0005] The present application provides a hot push knife, comprising: at least three knife heads with the same structure; wherein the side walls of the three knife heads are all arc-shaped structures, and the end surfaces of both ends of the three knife heads abut against each other to form a circular ring;

[0006] The upper surface of each cutter head is configured as an inclined surface, and there is a height difference between adjacent inclined surfaces;

[0007] A bevel tearing portion is provided on the high side of the inclined surface close to the outer edge of the cutter head;

[0008] The inner edge of the upper surface of each of the cutting heads is a main cutting edge, and the upper edge of the upper surface is a secondary cutting edge.

[0009] Furthermore, the hot push knife is composed of three knife heads with the same structure, wherein the arc lengths of two of the knife heads are the same, and the total arc length of the two knife heads is the same as the arc length of another knife head.

[0010] Furthermore, the hot push knife comprises four knife heads with the same structure, and the arc lengths of the four knife heads are the same.

[0011] Furthermore, the inclined surface is a spiral inclined surface, the lower portion of which is inclined outwards and the upper portion of which is inclined inwards.

[0012] Furthermore, a reverse inclined surface auxiliary tearing opening is arranged on the lower side of the inclined surface close to the inner edge of the cutter head.

[0013] Furthermore, the height difference between adjacent inclined surfaces is 15-25 cm.

[0014] Furthermore, a limiting protrusion is provided on the peripheral side of the outer surface of the bottom of the cutter head.

[0015] Furthermore, 2-5 locking threaded holes are evenly arranged on each cutter head along the horizontal direction above the limiting protrusion.

[0016] A hot push knife holder, to which the hot push knife is detachably connected; the hot push knife holder comprises: a holder body having the same number as the cutter heads, wherein the curvature of the holder body is the same as the curvature of the side wall of the cutter head, and a connecting through hole for a bolt to pass through is arranged at a position corresponding to a locking threaded hole on the side wall of each of the holder bodies; a limiting groove for mating with a limiting protrusion is arranged on the inner surface of the side wall of the holder body; through holes for bolts to pass through are evenly arranged on the upper end of each of the holder bodies; the holder body is fixed to a friction welding machine by the bolts passing through the through holes and cooperating with the threaded holes of the friction welding machine.

[0017] A friction welding machine is provided with the hot push knife seat.

[0018] Compared with the prior art, the beneficial effects of the utility model are:

[0019] The utility model provides a hot push knife, a knife holder and a friction welding machine, which adopt at least three knife heads with the same structure, wherein the side walls of the three knife heads are all arc-shaped structures, and the end faces of the three knife heads abut each other to form a circular ring; and the upper surface of each knife head is arranged as an inclined surface, and there is a height difference between adjacent inclined surfaces; an inclined tearing part is arranged on the high side of the inclined surface close to the outer edge of the knife head; through the height difference design between adjacent inclined surfaces, in combination with the inclined tearing part, the flash circular ring generated during the friction welding process between the bridge housing body and the shaft head can be torn into several pieces, thereby quickly completing the separation process between the flash circular ring and the shaft head, and the operation process is simple, time-saving and labor-saving, and the efficiency is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is the overall structural schematic diagram of the hot push knife;

[0021] Figure 2 The overall structure diagram of the cutter head;

[0022] Figure 3 This is a schematic diagram of the installation of the hot push knife and knife holder on the friction welding machine.

[0023] In the figure:

[0024] 1. Blade head;

[0025] 2. Torus;

[0026] 3. Inclined surface;

[0027] 4. Bevel tearing part;

[0028] 5. Main blade;

[0029] 6. Secondary blade;

[0030] 7. Reverse bevel auxiliary tearing edge;

[0031] 8. Limiting protrusion;

[0032] 9. Knife holder body;

[0033] 10. Vias;

[0034] 11. Upper slider;

[0035] 12. Lower slider;

[0036] 13. Lock the threaded holes. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical solutions and advantages of this application clearer, the following will be combined with the attached Figure 1-3 The present application is further described in detail. Obviously, the described embodiments are only a part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0038] It should be understood that although the terms first, second, third, etc. may be used to describe in the embodiments of the present application, these descriptions should not be limited to these terms. These terms are only used to distinguish the descriptions. For example, without departing from the scope of the embodiments of the present application, the first may also be referred to as the second, and similarly, the second may also be referred to as the first.

[0039] Example 1

[0040] A hot push knife comprises at least three blade heads 1 with the same structure; wherein the side walls of the three blade heads 1 are all arc-shaped structures, and the end surfaces of both ends of the three blade heads 1 abut against each other to form a circular ring body 2;

[0041] The upper surface of each cutter head 1 is configured as an inclined surface 3, and there is a height difference between adjacent inclined surfaces 3;

[0042] A bevel tearing portion 4 is provided on the high side of the inclined surface 3 close to the outer edge of the cutter head 1;

[0043] The inner edge of the upper surface of each of the cutting heads 1 is a primary cutting edge 5 , and the upper edge of the upper surface is a secondary cutting edge 6 .

[0044] It can be understood that the curvature of the side wall of the cutter head 1 described in the present application can be adapted according to the external dimensions of the shaft head.

[0045] In this embodiment, the cutter head 1 is made of ASP30 material; the surfaces of the main cutting edge 5 and the secondary cutting edge 6 are passivated; the advantage of this design is that it increases the wear resistance of the cutting edge.

[0046] Specifically, through the cooperation between the main blade 5 and the secondary blade 6 located on the upper edge of the upper surface, the flash ring on the shaft head can be removed as a whole. At the same time, through the height difference design of the inclined surface 3 on the two adjacent blade heads 1, the flash ring can be torn into several pieces during the removal process, thereby completing the separation operation between the flash ring and the shaft head. The operation process is simple, efficient, and time-saving and labor-saving.

[0047] Furthermore, the design of the bevel tearing portion 4 has the following advantages. First, the bevel tearing portion 4 can cooperate with the main blade 5 and the auxiliary blade 6 to generate a sub-item shear force on the tearing part of the flash ring, thereby avoiding wire drawing and adhesion of the flash ring during the tearing process. Secondly, the bevel tearing portion 4 can provide a buffer space during the tearing process of the flash ring, thereby reducing the extrusion pressure of the waste generated after the flash ring is torn on the end face of the cutter head 1, aggravating the wear of the cutter head 1 and affecting the service life of the cutter head 1.

[0048] Optionally, the hot pusher is three cutter heads 1 with the same structure, wherein two of the cutter heads 1 have the same arc length, and the total arc length of the two is the same as the arc length of another cutter head 1; the advantage of this design is that it facilitates the installation and disassembly of the cutter head 1 and the cutter seat while ensuring that the flash ring can be separated into multiple pieces during the removal process.

[0049] In another embodiment, the arc lengths of the three cutter heads 1 are the same; the advantage of this design is that during the tearing of the flash ring, the cutting edge of the cutter head 1 is subjected to balanced force, and compared with the previous embodiment, it is less worn and has a longer service life.

[0050] In another embodiment, preferably, the hot push knife is four cutter heads 1 with the same structure, and the arc length of each cutter head 1 is the same; it can be understood that when four cutter heads 1 are used, since the four cutter heads 1 divide the annular body 2 into four equal parts, the force balance of the cutting edge of each cutter head 1 is better, and combined with the buffer space design on the bevel tearing part 4, the wear on the end face of the cutter head 1 is extremely low, and the running stability performance of the hot push knife is significantly improved.

[0051] Optionally, the inclined surface 3 is a spiral inclined surface; wherein the outer side of the spiral inclined surface is lower than the inner side; the advantage of this design is that it is easier to tear the flash ring and reduce the wear of the flash ring waste on the blade.

[0052] In another embodiment, the lower portion of the spiral inclined surface is inclined outwardly and the upper portion is inclined inwardly; compared with the previous embodiment, in the process of tearing the flash ring, the spiral inclined surface can provide tangential forces in various directions to the end face of the flash ring. It can be understood that this design can ensure the overall segmentation effect of the flash ring while avoiding the appearance of larger waste in the flash ring, resulting in increased wear of the spiral inclined surface, and objectively further improves the life of the cutter head 1.

[0053] Optionally, a reverse bevel auxiliary tearing opening 7 is arranged on the lower side of the inclined surface 3 near the inner edge of the blade 1; it can be understood that the advantage of this design is that since the reverse bevel auxiliary tearing opening 7 is arranged in an opposite direction to the bevel tearing portion 4, the reverse bevel auxiliary tearing opening 7 cooperates with the bevel tearing portion 4, so that the tearing position of the flash ring is subjected to a Y-shaped shear force, which can ensure that the flash ring is divided into multiple pieces, and the dividing effect is further improved.

[0054] Optionally, the height difference between adjacent inclined surfaces 3 is 15-25 cm; in this embodiment, the height difference is 20 cm.

[0055] In this embodiment, a limiting protrusion 8 is provided on the peripheral side of the outer surface of the bottom of the cutter head 1; the limiting protrusion 8 is plugged into and matched with the limiting groove in the hot push knife seat, thereby improving the connection stability between the cutter head 1 and the knife seat and facilitating the installation and replacement of the cutter head 1.

[0056] Optionally, two locking threaded holes 13 are evenly arranged on each cutter head 1 along the horizontal direction above the limiting protrusion 8 .

[0057] On the other hand, the present application provides a hot pusher knife holder, which is a hollow annular structure as a whole, and a hot pusher knife is connected to the inside by bolts.

[0058] The hot push knife seat includes: a knife seat body 9 with the same number as the knife head 1, and the end faces of the two ends of the knife seat body 9 are abutted against each other; wherein the curvature of the knife seat body 9 is the same as the curvature of the side wall of the knife head 1; a connecting through hole for a bolt to pass through is provided on the side wall of each of the knife seat bodies 9 at a position corresponding to the locking threaded hole 13; a limiting groove is provided on the inner surface of the side wall of the knife seat body 9 to engage with the limiting protrusion 8; through holes 10 for bolts to pass through are evenly arranged on the upper end of each of the knife seat bodies 9; the knife seat body 9 is fixed to the friction welding machine by the bolts passing through the through holes 10 and cooperating with the threaded holes of the friction welding machine.

[0059] Specifically, the cutter head 1 is fixed to the inner surface of the cutter seat body 9 by threading a bolt passing through a connecting through hole of the cutter seat body 9 and a locking threaded hole 13 .

[0060] On the other hand, the present application provides a friction welding machine equipped with the above-mentioned hot push knife holder.

[0061] For example, the hot pusher includes four cutter heads 1 with the same structure, and correspondingly, four cutter holder bodies 9 are provided; wherein, the friction welding machine includes an upper slider 11 and a lower slider 12; two cutter holder bodies 9 are correspondingly provided at the lower end of the upper slider 11 and the upper end of the lower slider 12, and a cutter head 1 is fixed on the inner side of each cutter holder body 9; specifically, the upper slider 11 and the lower slider 12 can be relatively moved and engaged with each other in the vertical direction, so as to merge the four cutter heads 1 into a hot pusher of a circular body 2, and the separation process of the shaft head and the flash ring is completed by controlling the hot pusher to move horizontally forward and backward.

[0062] Now, exemplary embodiments according to the present application will be described in more detail with reference to the accompanying drawings. However, these exemplary embodiments may be implemented in a variety of different forms and should not be construed as being limited to the embodiments described herein. It should be understood that these embodiments are provided to make the disclosure of the present application thorough and complete, and to fully convey the concepts of these exemplary embodiments to those of ordinary skill in the art. In the accompanying drawings, for the sake of clarity, the thickness of the layers and regions may be enlarged, and the same reference numerals are used to represent the same devices, and thus their descriptions will be omitted.

Claims

1. A hot push knife, characterized in that: include: At least three cutter heads (1) with the same structure; wherein the side walls of the three cutter heads (1) are all arc-shaped structures, and the end surfaces of both ends of the three cutter heads (1) abut against each other to form a circular ring body (2); The upper surface of each cutter head (1) is arranged as an inclined surface (3), and there is a height difference between adjacent inclined surfaces (3); A bevel tearing portion (4) is provided on a high side of the inclined surface (3) close to the outer edge of the cutter head (1); The inner edge of the upper surface of each of the cutting heads (1) is the main cutting edge (5), and the upper edge of the upper surface is the secondary cutting edge (6).

2. The hot push knife according to claim 1, characterized in that: The hot pusher comprises three cutter heads (1) with the same structure, wherein two of the cutter heads (1) have the same arc length, and the total arc length of the two is the same as the arc length of another cutter head (1).

3. The hot push knife according to claim 1, characterized in that: The hot push knife comprises four knife heads (1) with the same structure, and the arc lengths of the four knife heads (1) are the same.

4. The hot push knife according to claim 2 or 3, characterized in that: The inclined surface (3) is a spiral inclined surface, the lower part of which is inclined outwards and the upper part of which is inclined inwards.

5. The hot push knife according to claim 4, characterized in that: A reverse inclined surface auxiliary tearing opening (7) is provided on the lower side of the inclined surface (3) close to the inner edge of the cutter head (1).

6. The hot push knife according to claim 5, characterized in that: The height difference between adjacent inclined surfaces (3) is 15-25 cm.

7. The hot push knife according to claim 6, characterized in that: A limiting protrusion (8) is provided on the peripheral side of the outer surface of the bottom of the cutter head (1).

8. The hot push knife according to claim 7, characterized in that: 2 to 5 locking threaded holes (13) are evenly arranged on each cutter head (1) along the horizontal direction above the limiting protrusion (8).

9. A hot push knife holder, characterized in that: A hot push knife as described in any one of claims 1 to 8 is detachably connected; the hot push knife seat comprises: a seat body (9) whose number is the same as that of the cutter head (1), wherein the curvature of the seat body (9) is the same as the curvature of the side wall of the cutter head (1), and a connecting through hole for a bolt to pass through is provided at a position corresponding to the locking threaded hole (13) on the side wall of each of the seat bodies (9); a limiting groove for inserting a matching limiting protrusion (8) is provided on the inner surface of the side wall of the seat body (9); through holes (10) for bolts to pass through are evenly arranged on the upper end of each of the seat bodies (9); the seat body (9) is fixed to the friction welding machine by the bolts passing through the through holes (10) and cooperating with the threaded holes of the friction welding machine.

10. A friction welding machine, characterized in that: The hot push knife holder according to claim 9 is installed.

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