External cutter assembly of warm upsetting die

Abstract

The utility model relates to the technical field of forging and pressing equipment, in particular to an external cutter assembly of a warm upsetting die, which comprises an external cutter holder, a cutter head and a plurality of blades, the external cutter holder is provided with a first mounting groove matched with the cutter head, the first mounting groove is provided with a clearance notch for a wire to be cut to pass through, the cutter head is detachably mounted in the first mounting groove, and the cutter head is detachably mounted in the first mounting groove. During use, the cutter head is mounted in the first mounting groove of the cutter holder, the blades are mounted on the periphery of the cutter head, a wire to be cut penetrates through the receding notch and is in contact with the blades for cutting, when one blade is abraded, the cutter head is rotated, the other blade is moved to the receding notch, and then the wire is cut. Therefore, the loss rate of the external cutter assembly of the warm upsetting die is reduced, and the service life of the external cutter assembly of the warm upsetting die is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to a forging and pressing equipment technical field more specifically, relate to a kind of warm upsetting die outer cutting tool assembly. BACKGROUND

[0002] At present, stainless steel warm upsetting is usually heated after cutting, then it is formed by multi-station die upsetting, and the outer cutting tool blade is mostly two-knife structure, one is worn and rotated 180 degrees to use another one, the outer cutting tool blade is easy to wear in high-frequency production, and the gap between the worn blade and the inner blade is large, resulting in large burrs of the wire after cutting, and the product produced has layering, and the quality cannot be guaranteed, and more seriously, the blade is easy to burst under stress after wear, resulting in high loss rate of the outer cutting tool, low service life, and greatly increasing the production cost of enterprise. In order to solve the existing problems, it is urgent to improve the structure of the warm upsetting die outer cutting tool assembly to better perform the working operation. SUMMARY

[0003] The utility model aims at overcoming the insufficient higher loss rate of prior art outer cutting tool, and provides a warm upsetting die outer cutting tool assembly, which can reduce the loss rate of the outer cutting tool and prolong the service life of the warm upsetting die outer cutting tool assembly.

[0004] To solve the above technical problems, the utility model adopts the technical scheme of:

[0005] Provided is a warm upsetting die outer cutting tool assembly, which comprises an outer knife seat, a knife disc and a plurality of blades, the outer knife seat is provided with a first installation groove matched with the knife disc, the first installation groove is provided with an empty gap through which the wire to be cut can pass, the knife disc is detachably installed in the first installation groove, the plurality of blades are installed on the outer periphery of the knife disc, and at least one of the blades is located in the empty gap.

[0006] The warm upsetting die outer cutting tool assembly of the utility model installs the knife disc in the first installation groove of the knife seat and installs the plurality of blades on the outer periphery of the knife disc, so that the wire to be cut passes through the empty gap and contacts the blades for cutting, when one blade is worn, the knife disc is rotated to move another blade to the empty gap for cutting the wire, thereby reducing the loss rate of the warm upsetting die outer cutting tool assembly and prolonging the service life of the warm upsetting die outer cutting tool assembly.

[0007] Further, the outer periphery of the knife disc is provided with a second installation groove and a feeding hole, the blade is installed in the second installation groove, and the feeding hole is arranged on the inner wall of the second installation groove parallel to the end face of the knife disc. The blade is installed in the second installation groove, the wire enters the second installation groove after passing through the feeding hole, and the blade cuts the wire.

[0008] Further, a welding groove is arranged on the inner surface of the second mounting groove. The blade and the cutter head are conveniently fused into one body by copper brazing, which is more firm and reliable.

[0009] Further, the blade is provided with a circular arc-shaped cutting gap, the axis of the cutting gap coincides with the axis of the feeding hole, and the diameter of the cutting gap is equal to the diameter of the feeding hole. The diameter of the cutting gap is equal to the diameter of the feeding hole, and the axes coincide, which facilitates the cutting of the wire passing through the feeding hole by the blade.

[0010] Further, the plurality of blades are uniformly distributed on the outer periphery of the cutter head. Since the blades are uniformly distributed on the outer periphery of the cutter head, the angle of rotation of the cutter head is equal when the blades are replaced each time, which simplifies the operation.

[0011] Further, the included angle between the end face of the first mounting groove and the end face of the outer cutter seat is greater than 0.5° and less than 1.5°. Limiting the included angle between the end face of the first mounting groove and the end face of the outer cutter seat to 0.5° to 1.5° can reduce the contact area of the blade and the wire, ensure the sharpness of the position where the cutting edge contacts the wire, improve the cutting efficiency, and reduce burrs generated when cutting the wire; at the same time, it can prevent the contact area of the blade and the wire from being too large to cause the cutting edge to collapse.

[0012] Further, it further comprises fasteners, at least two first mounting holes are arranged on the end face of the first mounting groove, a plurality of second mounting holes are arranged on the end face of the cutter head, at least two second mounting holes coincide with the axis of the first mounting hole, and at least two fasteners pass through the second mounting hole and the first mounting hole at the same time. After the cutter head is placed in the first mounting groove, the position of the cutter head is adjusted, the blade is exposed from the avoidance gap, at least two second mounting holes coincide with the axis of the first mounting hole, at least two fasteners pass through the first mounting hole and the second mounting hole with the axis coinciding, and at least two fasteners jointly lock the cutter head in the first mounting groove. When the blade needs to be replaced, the fasteners are removed, the cutter head is rotated, another blade is exposed from the avoidance gap, at least two other second mounting holes coincide with the axis of the first mounting hole, the fasteners are installed, and at least two fasteners jointly lock the cutter head to complete the blade replacement operation.

[0013] Further, the fastener comprises a bolt and a nut, the second mounting hole is a screw hole matched with the bolt, the bolt passes through the first mounting hole, the second mounting hole and the nut, and is threadedly connected with the second mounting hole and the nut, and the cutter head and the first mounting groove are located between the nut and the head of the bolt. When locking the cutter head, the fastener passes through the first mounting hole, the fastener is rotated, the fastener is screwed into the second mounting hole, the fastener is threadedly connected with the second mounting hole, and the head of the fastener plays a limiting role to lock the cutter head and the outer cutter seat.

[0014] Further, the end face of the first mounting groove is provided with a cooling groove. Liquid capable of playing a cooling role is added into the cooling groove to prevent the cutter head from being deformed due to heat in the process of cutting the wire.

[0015] Further, the end face of the first mounting groove is provided with a cooling groove. Liquid capable of playing a cooling role is added into the cooling groove to prevent the cutter head from being deformed due to heat in the process of cutting the wire.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] The warm upsetting die outer cutting knife assembly has the advantages that: 1. when the blade is worn, another blade is switched to cut the wire by rotating the cutter head, so that the loss rate of the warm upsetting die outer cutting knife assembly is reduced, and the service life is prolonged; 2. an included angle exists between the end face of the first mounting groove and the end face of the outer cutter seat, the area of contact between the blade and the wire is reduced, the cutting efficiency is improved, the burr generated when the wire is cut is prevented, and the cutting edge of the blade is ensured to be sharp; and 3. the cooling groove is arranged on the end face of the first mounting groove to prevent the cutter head from being deformed due to heat. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 The utility model discloses a warm upsetting die outer cutting knife assembly structure explosion map;

[0019] Figure 2 The utility model discloses a warm upsetting die outer cutting knife assembly first structure schematic drawing of outer cutter seat;

[0020] Figure 3 The utility model discloses a warm upsetting die outer cutting knife assembly second structure schematic drawing of outer cutter seat;

[0021] Figure 4 The utility model discloses a warm upsetting die outer cutting knife assembly cutter head structure schematic drawing;

[0022] Figure 5 The utility model discloses a warm upsetting die outer cutting knife assembly cutter head and blade assembly schematic drawing;

[0023] Figure 6 The utility model discloses a warm upsetting die outer cutting knife assembly first structure schematic drawing;

[0024] In the drawings: 1, outer cutter seat, 11, first mounting groove, 111, avoid empty gap, 112, first mounting hole, 113, cooling groove, 2, cutter head, 21, second mounting groove, 211, welding groove, 22, second mounting hole, 23, feed hole, 3, blade, 31, cutting gap. DETAILED DESCRIPTION

[0025] The utility model makes further explanation in combination with specific implementation. Among them, the drawing is only for example explanation, and the representation is only schematic diagram, and can not be understood as the limitation to this patent; in order to better explain the embodiment of the utility model, the drawing some components will be omitted, enlarged or reduced, and does not represent the size of actual product; for those skilled in the art, it is understandable that some well-known structures in the drawing and its description can be omitted.

[0026] The same or similar reference numerals in the drawings of the embodiments of the utility model correspond to the same or similar components; in the description of the utility model, it is understood that if there are terms "upper", "lower", "left", "right" and the like indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawing, only for the convenience of describing the utility model and simplifying the description, and not indicating or implying that the device or element indicated must have a particular orientation, a particular orientation and operation, therefore the positional relationship description term in the drawing is only for example explanation, and can not be understood as the limitation to this patent, for the ordinary skilled in the art, can understand the specific meaning of the above terms according to the specific situation.

[0027] Embodiment one

[0028] As Figures 1 to 6 The utility model discloses a warm upsetting die outer cutting tool assembly's first embodiment, including outer cutter seat 1, cutter head 2 and a plurality of blade 3, is equipped with with cutter head 2 cooperation's first installation groove 11 on outer cutter seat 1, is equipped with the clearance gap 111 of being able to make the wire that is cut through on first installation groove 11, cutter head 2 is detachably installed in first installation groove 11, and a plurality of blade 3 is installed on the outer periphery of cutter head 2.

[0029] The utility model discloses a warm upsetting die outer cutting tool assembly, installs cutter head 2 in the first installation groove 11 of cutter seat, installs a plurality of blade 3 on the outer periphery of cutter head 2, makes the wire that is cut through to pass through the clearance gap 111, contacts blade 3, carries out cutting, when one blade 3 wears, rotates cutter head 2, moves another blade 3 to the clearance gap 111, and carries out cutting to the wire, thereby reducing the loss rate of warm upsetting die outer cutting tool assembly, prolongs the service life of warm upsetting die outer cutting tool assembly.

[0030] As Figure 4 Indicated, is equipped with second installation groove 21 and feed hole 23 on the outer periphery on cutter head 2, and blade 3 is installed in second installation groove 21, and feed hole 23 is equipped on the inner wall parallel with the end face of cutter head 2 in second installation groove 21.Cutter head 3 is installed in second installation groove 21, and the wire enters second installation groove 21 after passing through feed hole 23, and blade 3 carries out cutting to the wire.

[0031] The inner surface of the second mounting groove 21 is provided with a welding groove 211. The blade 3 and the cutter head 2 are conveniently fused into one body by copper brazing, which is more firm and reliable.

[0032] The blade 3 is provided with a circular arc-shaped cutting notch 31, the axis of the cutting notch 31 coincides with the axis of the feeding hole 23, and the diameter of the cutting notch 31 is equal to the diameter of the feeding hole 23. The diameter of the cutting notch 31 is equal to the diameter of the feeding hole 23, and the axis coincides, which facilitates the blade 3 to cut the wire passing through the feeding hole 23.

[0033] The plurality of blades 3 are uniformly distributed on the outer periphery of the cutter head 2. Since the blades 3 are uniformly distributed on the outer periphery of the cutter head 2, the angle of rotation of the cutter head 2 is equal each time the blade 3 is replaced, simplifying the operation.

[0034] In the embodiment, six second mounting grooves 21 are uniformly provided on the cutter head 2, and six blades 3 are respectively installed in the six second mounting grooves 21, and the included angle between the six mounting grooves is 60°.

[0035] The working principle of the warm upsetting die outer cutting tool assembly of the embodiment is as follows: the six blades 3 are respectively placed in the six second mounting grooves 21, molten copper is injected into the welding groove 211 for welding, after welding, the cutter head 2 is polished, so that the cutter head 2 and the blade 3 form an integral whole, as shown in Figure 5 The position of the cutter head 2 is adjusted so that a second mounting groove 21 and the blade 3 located in the second mounting groove 21 are aligned with the avoidance notch 111; the cutter head 2 is installed in the first mounting groove 11, and the installation of the warm upsetting die outer cutting tool assembly is completed, as shown in Figure 6 The wire contacts the blade 3 after passing through the avoidance notch 111, and the blade 3 cuts the wire; when the blade 3 is worn, the cutter head 2 is removed, the cutter head 2 is rotated by 60° so that another blade 3 adjacent to the worn blade 3 is aligned with the avoidance notch 111, the cutter head 2 is installed, and the cutting is continued, thereby reducing the loss rate of the warm upsetting die outer cutting tool assembly.

[0036] Embodiment two

[0037] The second embodiment of the warm upsetting die outer cutting tool assembly of the utility model is similar to the first embodiment, and the difference is that the fastener is further included, the end surface of the first installation slot 11 is provided with at least two first installation holes 112, the end surface of the cutter disc 2 is provided with a plurality of second installation holes 22, the axis of the at least two second installation holes 22 coincides with the first installation hole 112, and the at least two fasteners pass through the second installation hole 22 and the first installation hole 112 at the same time. After the cutter disc 2 is placed into the first installation slot 11, the position of the cutter disc 2 is adjusted, the blade 3 is exposed from the clearance gap 111, the axis of the at least two second installation holes 22 coincides with the first installation hole 112, the at least two fasteners pass through the first installation hole 112 and the second installation hole 22, the at least two fasteners jointly lock the cutter disc 2 in the first installation slot 11, when the blade 3 needs to be replaced, the fastener is removed, the cutter disc 2 is rotated, another blade 3 is exposed from the clearance gap 111, the axis of the at least two other second installation holes 22 coincides with the first installation hole 112, the fastener is installed, and the at least two fasteners jointly lock the cutter disc 2, so that the tool changing operation is completed.

[0038] The fastener includes a bolt and a nut, the second installation hole 22 is a screw hole matched with the bolt, the bolt passes through the first installation hole 112, the second installation hole 22 and the nut, and is in threaded connection with the second installation hole 22 and the nut, and the cutter disc 2 and the first installation slot 11 are located between the head of the bolt and the nut. When the cutter disc 2 is locked, the fastener passes through the first installation hole 112, the fastener is rotated, the fastener is screwed into the second installation hole 22, the fastener is in threaded connection with the second installation hole 22, and the head of the fastener plays a limiting role, so that the cutter disc 2 is locked with the outer cutter seat 1.

[0039] In the embodiment, the end surface of the first installation slot 11 is provided with two first installation holes 112, the two first installation holes 112 are symmetrical relative to the center of the first installation slot 11, the cutter disc 2 is provided with six second installation holes 22, the included angle between the radii of the cutter disc 2 passing through the centers of the second installation holes 22 is 60°, and the adjacent two second installation slots 21 are mirror-symmetrical relative to the radii of the cutter disc 2 passing through the centers of the second installation holes 22, as shown in the figure. Figure 4

[0040] The working principle of the warm upsetting die outer cutting tool assembly of the embodiment is as follows: the blade 3 is installed into the second installation slot 21 of the cutter disc 2, as shown in the figure. Figure 5 ​As shown in the figure; put the cutter head 2 into the first mounting groove 11, rotate the cutter head 2, make two second mounting holes 22 which are circularly symmetrical relative to the center of the cutter head 2 respectively align with two first mounting holes 112, at this time one second mounting groove 21 and the blade 3 mounted in the second mounting groove 21 move to the position of the avoidance gap 111, pass two bolts through two first mounting holes 112, two second mounting holes 22 and two nuts respectively, tighten the nuts, the two groups of bolts and nuts together lock the cutter head 2 and the outer cutter seat 1, complete the installation of the warm upsetting die outer cutting knife assembly, as shown in the figure Figure 6 As shown in the figure, the blade 3 cuts the wire entering the avoidance gap 111; when the blade 3 is worn, loosen the nuts and bolts, rotate the cutter head 2, make another blade 3 exposed from the avoidance gap 111, and the other two second mounting holes 22 coincide with the axis of the first mounting hole 112, lock the cutter head 2, complete the knife changing operation, and reduce the loss rate of the warm upsetting die outer cutting knife assembly.

[0041] Embodiment three

[0042] This embodiment is the third embodiment of the warm upsetting die outer cutting knife assembly of the utility model, which is similar to embodiment two, and the difference lies in that, as shown in the figure Figure 3 The angle A between the end face of the first mounting groove 11 and the end face of the outer cutter seat 1 is greater than 0.5° and less than 1.5°. Limiting the angle A between the end face of the first mounting groove 11 and the end face of the outer cutter seat 1 to be between 0.5° and 1.5° can reduce the contact area of the blade 3 and the wire, ensure the sharpness of the position where the cutting edge contacts the wire, improve the cutting efficiency, and reduce the burr generated when cutting the wire; at the same time, it can prevent the contact area of the blade 3 and the wire from being too large to cause the cutting edge to collapse.

[0043] In this embodiment, the angle A between the end face of the first mounting groove 11 and the end face of the outer cutter seat 1 is 1°.

[0044] As shown in the figure Figure 2 A cooling groove 113 is arranged on the end face of the first mounting groove 11. Add a liquid that can play a cooling role to the cooling groove 113 to prevent the cutter head 2 from being deformed by heat during cutting the wire. In this embodiment, the cooling groove 113 is a circular groove with the same center as the cutter head 2, and the radial section of the cooling groove 113 is square.

[0045] The end face of the first mounting groove 11 abuts against the end face of the cutter head 2. The end face of the first mounting groove 11 abuts against the end face of the cutter head 2, which can reduce the distance between the blade 3 and the die inner cutting knife, and reduce the burr generated when cutting the wire.

[0046] The working principle of the warm upsetting die outer cutter assembly of the embodiment is as follows: the six cutters 3 are respectively placed in the six second installation grooves 21, the cutter disc 2 and the cutters 3 form an integral whole, the position of the cutter disc 2 is adjusted, a second installation groove 21 and the cutter 3 located in the second installation groove 21 are aligned with the avoidance gap 111; the bolt is passed through the first installation hole 112 and the second installation hole 22, the nut is tightened, the cutter disc 2 is abutted with the end surface of the second installation groove 21, so that the gap between the cutter 3 and the inner cutter of the die is reduced, and the burr generated by cutting the wire rod is reduced; the cooling oil is injected into the cooling groove 113, the function of cooling the cutter disc 2 is achieved, and the cutter disc 2 is prevented from being deformed due to heat in the process of cutting the wire rod; the wire rod is in contact with the cutter 3 after passing through the avoidance gap 111, because the included angle A between the end surface of the first installation groove 11 and the end surface of the outer cutter seat 1 is greater than 0.5° and less than 1.5°, the contact area of the wire rod and the cutter 3 is reduced, the cutting edge of the cutter 3 cuts the wire rod, the cutting effect is improved, the burr generated by cutting is reduced, and the contact area of the cutter 3 and the wire rod is prevented from being too large to cause the cutter to break; when the cutter 3 is worn, the cutter disc 2 is removed, the cutter disc 2 is rotated by 60°, another cutter 3 adjacent to the worn cutter 3 is aligned with the avoidance gap 111, the cutter disc 2 is installed, and cutting is continued.

[0047] In the specific contents of the above specific embodiments, any inconsistent combination of technical features can be combined, and in order to make the description simple, all possible combinations of the above technical features are not described, but as long as the combination of technical features does not exist, it should be considered as the scope of the description.

[0048] Obviously, the above embodiments of the utility model are only examples for clearly illustrating the utility model, and are not limitations on the embodiments of the utility model. For ordinary skilled in the art, other different forms of changes or changes can be made on the basis of the above description. Here, it is not necessary and impossible to exhaust all the embodiments. Any modification, equivalent replacement and improvement made within the spirit and principle of the utility model should be included in the protection scope of the utility model claims.

Claims

1. A warm upsetting die external cutting blade assembly, characterized in that, The device includes an outer blade holder (1), a blade disc (2), and multiple blades (3). The outer blade holder (1) is provided with a first mounting groove (11) that mates with the blade disc (2). The first mounting groove (11) is provided with a clearance notch (111) that allows the wire to be cut to pass through. The blade disc (2) is detachably mounted in the first mounting groove (11). Multiple blades (3) are mounted on the outer periphery of the blade disc (2), and at least one blade (3) is located in the clearance notch (111).

2. The warm upsetting die external cutting blade assembly according to claim 1, characterized in that, The cutter head (2) is provided with a second mounting groove (21) and a feed hole (23) on its outer periphery. The blade (3) is installed in the second mounting groove (21), and the feed hole (23) is located on the inner wall of the second mounting groove (21) parallel to the end face of the cutter head (2).

3. The warm upsetting die external cutting blade assembly according to claim 2, characterized in that, The inner surface of the second mounting groove (21) is provided with a welding groove (211).

4. The warm upsetting die external cutting blade assembly according to claim 2, characterized in that, The blade (3) has an arc-shaped cutting notch (31), the axis of which coincides with the axis of the feed hole (23), and the diameter of the cutting notch (31) is equal to the diameter of the feed hole (23).

5. The warm upsetting die external cutting blade assembly according to claim 1, characterized in that, Multiple blades (3) are evenly distributed on the outer periphery of the cutter head (2).

6. The warm upsetting die external cutting blade assembly according to claim 1, characterized in that, The angle between the end face of the first mounting groove (11) and the end face of the outer tool holder (1) is greater than 0.5° and less than 1.5°.

7. The warm upsetting die external cutting blade assembly according to claim 1, characterized in that, It also includes fasteners. The end face of the first mounting groove (11) is provided with at least two first mounting holes (112), and the end face of the cutter head (2) is provided with a plurality of second mounting holes (22). At least two of the second mounting holes (22) coincide with the axis of the first mounting hole (112), and at least two of the fasteners pass through the second mounting hole (22) and the first mounting hole (112) at the same time.

8. The warm upsetting die external cutting blade assembly according to claim 7, characterized in that, The fastener includes a bolt and a nut. The second mounting hole (22) is a threaded hole that mates with the bolt. The bolt passes through the first mounting hole (112), the second mounting hole (22), and the nut, and is threadedly connected to the second mounting hole (22) and the nut. The cutter head (2) and the first mounting groove (11) are located between the heads of the nut and the bolt.

9. The warm upsetting die external cutting blade assembly according to claim 1, characterized in that, A cooling groove (113) is provided on the end face of the first mounting groove (11).

10. The warm upsetting die external cutting blade assembly according to claim 1, characterized in that, The end face of the first mounting groove (11) abuts against the end face of the cutter head (2).

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