Core rod seat for extruding hard alloy hole rod

Abstract

The utility model discloses a core rod seat for extruding a hard alloy hole rod, which relates to the field of core rod seat structures, and comprises a base, a core rod head, a connecting component and an extrusion core rod, the core rod head is connected with one end of the base, the connecting component is arranged between the base and the core rod head, and the extrusion core rod is arranged at one end of the core rod head far away from the base; according to the core rod seat for extrusion of the hard alloy hole rod, the core rod head is detachably connected with the base, so that the production cost of the core rod seat can be reduced, and the efficiency and flexibility of extrusion production of the hard alloy hole rod are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the core pole seat structure field, specifically is a kind of hard alloy hole stick extrusion with core pole seat. BACKGROUND

[0002] Hard alloy hole stick has extensive application in industrial production due to its high strength, high hardness and excellent wear resistance. In the extrusion production process of hard alloy hole stick (single hole stick, multi-hole stick, spiral hole stick), a core pole seat is generally loaded in the extrusion die for fixing and guiding the extrusion core pole to ensure that the internal hole structure can be formed when the feed passes through the extrusion die cavity.

[0003] At present, the core pole seat in the industry is mostly of integral design, i.e., the core pole and the seat body are of an integrated structure. However, the integral core pole seat needs to be manufactured by using high-precision processing technology, which is high in material cost and long in processing cycle, resulting in high overall manufacturing cost. The integral core pole seat structure and size are fixed, and when different specifications or types of hard alloy hole sticks are produced, the entire core pole seat needs to be replaced, a large number of integral core pole seats need to be matched, and when the extrusion core pole is damaged, it cannot be replaced individually but only the entire core pole seat can be replaced, which increases the maintenance cost and resource waste. SUMMARY

[0004] The utility model aims at providing a kind of hard alloy hole stick extrusion with core pole seat, the hard alloy hole stick extrusion with core pole seat of this kind is through the detachable connection of core pole head and base, can reduce the production cost of core pole seat, improve the efficiency and flexibility of hard alloy hole stick extrusion production.

[0005] The above-mentioned optimization structure of the utility model is realized by the following technical scheme: a kind of hard alloy hole stick extrusion with core pole seat, including base;

[0006] Core pole head, the core pole head is connected with the base one end;

[0007] Connecting assembly, the connecting assembly is located between the base and the core pole head;

[0008] Extrusion core pole, the extrusion core pole is located at the end of the core pole head away from the base.

[0009] In some embodiments, the connecting assembly includes a first plug, which is located at the end of the core pole head close to the base;

[0010] First insertion slot, the first insertion slot is located at the end of the core pole head close to the base;

[0011] Second plug, the second plug is located at the end of the base close to the core pole head, and is inserted into the first insertion slot;

[0012] A second socket is arranged on the base near the end of the core rod head and is connected with the first plug.

[0013] In some embodiments, the core rod head comprises a connecting part, the first plug and the first socket are arranged on the end of the connecting part near the base;

[0014] A fixing part is arranged on the end of the connecting part far from the base;

[0015] A plug hole is arranged through the fixing part.

[0016] In some embodiments, the core rod head further comprises a communication groove, the communication groove is arranged on the end of the connecting part near the base and is communicated with the plug hole.

[0017] In some embodiments, the cross section of the communication groove is square.

[0018] In some embodiments, the first plug and the second plug are both tenons, and the first socket and the second socket are both mortises.

[0019] In some embodiments, the plug hole is two, and the two extruded core rods are a soft rope.

[0020] In some embodiments, the plug hole comprises an extension area, the extension area is arranged on the end of the core rod head far from the base;

[0021] A limiting area is arranged between the extension area and the communication groove, and the diameter of the limiting area is greater than the diameter of the extension area.

[0022] The extruded core rod comprises a core rod body, the core rod body is connected with the extension area.

[0023] A limiting column is connected with the limiting area.

[0024] In summary, the utility model has the following beneficial effects:

[0025] The core rod seat for hard alloy hole rod extrusion can be respectively made of a core rod and a seat body through the detachable connection between the core rod head and the base, so as to reduce the overall manufacturing cost, when the core rod head part is worn or damaged, only the core rod head needs to be replaced without taking out the whole core rod seat from the extrusion die, the whole core rod seat needs to be replaced, the complexity and time consumption of the replacement operation are reduced, the number of spare parts and the replacement cost are reduced, different sizes of core rod heads can be matched with the core rod seat to meet the production requirements of different specifications and types of hard alloy hole rods, and the flexible configuration of production can be improved. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1Structure schematic view of the utility model;

[0027] Figure 2 Structure schematic view of the utility model base;

[0028] Figure 3 Structure schematic view of the utility model core rod head and extrusion core rod connection;

[0029] Figure 4 Core rod head bottom view of the utility model;

[0030] Figure 5 Core rod head and extrusion core rod connection sectional view in the utility model embodiment 1;

[0031] Figure 6 Core rod head sectional view in the utility model embodiment 2;

[0032] Figure 7 Structure schematic view of the utility model extrusion core rod in embodiment 2.

[0033] In the drawing: 1, base; 2, core rod head; 21, connecting portion; 22, fixed part; 23, insertion hole; 231, extension area; 232, limiting area; 24, communication groove; 3, connecting assembly; 31, first plug; 32, first insertion slot; 33, second plug; 34, second insertion slot; 4, extrusion core rod; 41, core rod body; 42, limiting column. Specific implementation

[0034] The technical scheme in the utility model embodiment will be clearly and completely described below in conjunction with the drawings in the utility model embodiment, obviously, the described embodiment is only a part of the embodiment of the utility model, not all the embodiment. Based on the embodiment in the utility model, all other embodiments obtained by the ordinary skill in the art without creative labor are within the protection scope of the utility model.

[0035] Embodiment 1:

[0036] Reference Figures 1-5The utility model provides a hard alloy hole rod extrusion core rod seat, including base 1, core rod head 2, connecting assembly 3 and extrusion core rod 4, base 1 can be circular base with extrusion feed distribution structure, can guide flow extrusion feed into core rod area, this is prior art, here no longer repeat, core rod head 2 is connected with one end of base 1, is used for fixed and oriented extrusion core rod 4, base 1 can be coaxial with core rod head 2 is arranged, can promote the stress uniformity between base 1 and core rod head 2, to promote the connection stability between base 1 and core rod head 2, connecting assembly 3 is arranged between base 1 and core rod head 2, can realize the detachable connection of base 1 and core rod head 2, to reduce the machining difficulty and machining cost of core rod seat, when producing different specifications or types of hard alloy hole rod, replace core rod head 2, do not need to replace the whole core rod seat, extrusion core rod 4 is arranged in the one end of core rod head 2 away from base 1, is used for the extrusion processing of hard alloy hole rod.

[0037] In some embodiments, connecting assembly 3 includes first plug 31, first slot 32, second plug 33 and second slot 34, first plug 31 and first slot 32 are arranged on the end of core rod head 2 close to base 1, second plug 33 and second slot 34 are arranged on the end of base 1 close to core rod head 2, first plug 31 is inserted and matched with second slot 34, and first slot 32 is inserted and matched with second plug 33, thereby realizing the quick disassembly between core rod head 2 and base 1, thereby improving the conversion speed of production when different specifications or types of hard alloy hole rod. First plug 31 and first slot 32 can be arranged on both sides of core rod head 2 respectively, thereby making the stress on both sides of core rod head 2, improving the uniformity of the overall stress, and further improving the connection stability between core rod head 2 and base 1.

[0038] In some embodiments, core rod head 2 includes connecting part 21, fixing part 22, insertion hole 23 and communication groove 24, first plug 31 and first slot 32 are arranged on the end of connecting part 21 close to base 1 for connecting with base 1, fixing part 22 is arranged on the end of connecting part 21 away from base 1, insertion hole 23 penetrates through fixing part 22, insertion hole 23 can be two, two extrusion core rods 4 can be a soft rope, the two ends of the soft rope are respectively threaded through insertion hole 23, so that the soft rope extends to the outside of core rod head 2, and the soft rope is limited by the connecting part between the two insertion holes 23, thereby realizing the connection between extrusion core rod 4 and core rod head 2, communication groove 24 is arranged on the end of connecting part 21 close to base 1 and communicates with insertion hole 23, the cross section of communication groove 24 can be square, and when extrusion core rod 4 is a soft rope, a spiral hole rod extrusion die is used at this time, the spiral hole rod extrusion die has a spiral line similar to the rifling of a gun barrel, so that the feed extrusion will rotate along the spiral line, drive the nylon soft rope to rotate, and form a spiral inner hole. This is prior art, here no longer repeat.

[0039] In some embodiments, the first plug 31 and the second plug 33 can be tenons, and the first slot 32 and the second slot 33 can be mortises. By the first plug 31, the second plug 33, the first slot 32, and the second slot 33, a stable mortise and tenon joint structure can be formed, further enhancing the connection strength between the core rod head 2 and the base 1.

[0040] The specific working principle is as follows:

[0041] In the extrusion process of the cemented carbide hole rod, the core rod head 2 is first connected with the base 1 through the connecting assembly 3. When connected, the first plug 31 is inserted into the second slot 34, and the second plug 33 is inserted into the first slot 32, realizing a tight connection through a plug-in cooperation mode, so that the core rod base can withstand a large extrusion force, ensuring the precision and stability during processing. The extrusion core rod 4 is inserted into the plug-in hole 23 of the core rod head 2 and passes through the communication groove 24, so that the extrusion core rod 4 is fixed on the core rod head 2, thereby combining the core rod head 2, the base 1, and the extrusion core rod 4 into a complete extrusion core rod base. After the assembled extrusion core rod base is installed on the extrusion die body, the assembly of the entire cemented carbide extrusion hole rod die is completed. Then, the cemented carbide extrusion hole rod die is installed on the extrusion machine, and the installation of the extrusion core rod base on the extrusion machine is completed, and the cemented carbide hole rod extrusion forming production is started.

[0042] Embodiment 2

[0043] Reference Figures 6-7 The difference between this embodiment and embodiment 1 is:

[0044] The plug-in hole 23 is at least one, and the plug-in hole 23 includes an extension area 231 and a limiting area 232. The extension area 231 is arranged at the end of the core rod head 2 away from the base 1, and the limiting area 232 is arranged between the extension area 231 and the communication groove 24, and the diameter of the limiting area 232 is greater than that of the extension area 231. The extrusion core rod 4 includes a core rod body 41 and a limiting column 42. The core rod body 41 is plug-in cooperated with the extension area 231, and the limiting column 42 is plug-in cooperated with the limiting area 232.

[0045] The extrusion core rod 4 passes through the communication groove 24, so that the core rod body 41 is plug-in cooperated with the extension area 231, and the limiting column 42 is plug-in cooperated with the limiting area 232. The movement of the limiting column 42 is limited by the connecting platform between the extension area 231 and the limiting area 232, thereby realizing the fixation of the extrusion core rod 4 in the core rod head 2.

[0046] The number of plug-in holes 23 can be adjusted according to actual production needs to meet the production needs of the corresponding hole number of the cemented carbide rod.

[0047] The above examples are only used to illustrate the technical solutions of the present application, and are not intended to limit them; although the present application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that the technical solutions recorded in the foregoing examples can still be modified, or some technical features therein can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A core pin holder for cemented carbide hole bar extrusion, characterized in that: The base (1) is provided with a core rod head (2) connected to one end of the base (1), a connecting assembly (3) arranged between the base (1) and the core rod head (2), and an extrusion core rod (4) arranged at the end of the core rod head (2) away from the base (1). The connecting assembly (3) comprises a first plug (31) arranged at the end of the core rod head (2) close to the base (1), a first slot (32) arranged at the end of the core rod head (2) close to the base (1), a second plug (33) arranged at the end of the base (1) close to the core rod head (2) and matched with the first slot (32), and a second slot (34) arranged at the end of the base (1) close to the core rod head (2) and matched with the first plug (31). The core rod head (2) comprises a connecting part (21) provided with the first plug (31) and the first slot (32) at the end close to the base (1), a fixing part (22) arranged at the end of the connecting part (21) away from the base (1), and at least one insertion hole (23) penetrating through the fixing part (22) and matched with the extrusion core rod (4). The core rod head (2) further comprises a communication groove (24) arranged at the end of the connecting part (21) close to the base (1) and communicated with the insertion hole (23).

2. A core rod seat for extrusion of cemented carbide hole bars according to claim 1, characterized in that: The cross section of the communication groove (24) is square. The first plug (31) and the second plug (33) are tenons, and the first slot (32) and the second slot (34) are mortises. The insertion hole (23) is two, and the two extrusion core rods (4) are a soft rope. The insertion hole (23) comprises an extension area (231) arranged at the end of the core rod head (2) away from the base (1), a limiting area (232) arranged between the extension area (231) and the communication groove (24), and the diameter of the limiting area (232) is greater than that of the extension area (231).

3. A core rod seat for extrusion of cemented carbide hole bars according to claim 2, characterized in that: The extrusion core rod (4) comprises a core rod body (41) matched with the extension area (231), and a limiting column (42) matched with the limiting area (232). ​ ​ 4. A core rod seat for extrusion of cemented carbide hole bars according to claim 3, characterized in that the core rod seat is made of a material having a hardness of at least 800 HV. 5 ​ 5. A core rod seat for extrusion of cemented carbide hole bars according to claim 4, characterized in that: ​ 6. A core rod seat for extrusion of cemented carbide hole bars according to claim 2, characterized in that: ​ 7. A core rod seat for extrusion of cemented carbide hole bars according to claim 3, characterized in that: ​ 8. A core rod seat for extrusion of cemented carbide hole bars according to claim 4, characterized in that: ​ ​ ​ ​

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