Quick positioning clamp for hot extrusion die

Abstract

The utility model discloses a rapid positioning clamp of a hot extrusion die, and belongs to the technical field of hot extrusion dies. The clamp comprises a base, a pair of stand columns arranged on the base and a plurality of plug pins used for installing a mold. The stand column comprises a plurality of pairs of positioning holes penetrating through the interior of the stand column and used for adjusting and fixing the position of the mold. The stand column further comprises a supporting groove formed in the upper surface of the stand column and used for rapidly supporting the mold. According to the rapid positioning clamp of the hot extrusion die, the stand column and the machining die are fixed through the plug pins, the positioning precision is improved, the assembly time is shortened, the production efficiency is improved, the die stability is enhanced, the multiple pairs of positioning holes with different hole distances are formed, good die adaptability is achieved, switching use among different dies is facilitated, and the production efficiency is improved. And in addition, through combination of the positioning holes and the supporting grooves, effective supporting of the machining die is achieved, one side of each supporting groove does not need to be detached, and more time and labor are saved.

Description

Technical Field

[0001] The utility model relates to the technical field of hot extrusion dies, and particularly relates to a quick positioning fixture for a hot extrusion die. Background Art

[0002] With the rapid development of the manufacturing industry, the hot extrusion forming technology has been widely applied in the field of metal processing. As a key equipment for this process, the design and manufacture of hot extrusion dies directly affect the production efficiency and product quality. In traditional hot extrusion dies, the positioning and clamping processes of the dies often rely on manual labor or complex mechanical devices, which not only increases the complexity of operation, but also may lead to insufficient positioning accuracy and low assembly efficiency.

[0003] During the processing of a kind of die called a micro-channel tube die (also known as an inclined rib tube die), it is necessary to perform oblique wire electrical discharge machining on the male die of the die. The die needs to be erected at a certain angle for machining. Generally, the fixtures used are supporting fixtures or fixtures that fix one side. Such fixtures are difficult to position the machining angle, and the disassembly process between such fixtures and the die is very difficult. Since the die is made of high-strength steel and has a large weight, and the die is closely attached to the fixture, one person needs to fix the fixture during operation, and the other person needs to hold both sides of the die and pull with force at the same time, resulting in a time-consuming and laborious disassembly process. In addition, existing fixtures are often designed in a one-to-one manner, that is, one fixture can only be applicable to a certain specification of die, resulting in weak applicability and unable to meet the diverse production needs. Therefore, in view of the above problems, we propose a quick positioning fixture for a hot extrusion die. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a quick positioning fixture for a hot extrusion die, so as to solve the problems that the existing fixtures for processing micro-channel tube dies are difficult to position the machining angle and the disassembly between the fixture and the die is difficult.

[0005] To solve the above technical problems, the utility model provides a quick positioning fixture for a hot extrusion die, which includes a base, a pair of columns arranged on the base, and a plurality of pins for installing the die.

[0006] The column includes multiple pairs of positioning holes penetrating through its interior for adjusting and fixing the position of the die.

[0007] The column further includes a support groove arranged on its upper surface for quickly supporting the die.

[0008] Preferably, the base includes a wire threading hole penetrating through its interior.

[0009] Preferably, the pins are arranged between the column and the workpiece for installing and fixing the workpiece.

[0010] Preferably, the workpiece includes a pair of mounting holes provided on one side thereof, and an alignment edge provided on one side of the workpiece.

[0011] Preferably, the positional distance relationship between the support groove and a plurality of positioning holes opposite thereto is set according to the center distance between the mounting holes, so that the positioning holes can be applicable to workpieces of different specifications.

[0012] Preferably, one of the pins is used to connect the mounting hole and the positioning hole, and the other pin is used to connect the other mounting hole and the support groove.

[0013] Preferably, the support groove is semi-circular;

[0014] The support groove, the positioning holes and the mounting holes have the same arc radius and hole diameter.

[0015] Compared with the prior art, the beneficial effects of the present utility model are:

[0016] 1. The quick positioning fixture of the hot extrusion die of the present utility model realizes the fixation of the column and the processing die through the pins, improves the positioning accuracy, shortens the assembly time, thus significantly improving the production efficiency and product quality. At the same time, it enhances the die stability, simplifies the operation process, improves the safety, and has good die adaptability by setting multiple pairs of positioning holes with different hole distances, facilitating the switching and use between different dies;

[0017] 2. The quick positioning fixture of the hot extrusion die of the present utility model realizes the effective support of the processing die through the combination of the positioning holes and the support groove. This design makes the assembly and disassembly process of the die fast and convenient, and one side of the support groove does not need to be disassembled, only concentrating the force on one side, which is more time-saving and labor-saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic diagram of the processing principle of a quick positioning fixture for a hot extrusion die provided by the present utility model;

[0019] Figure 2 is a working schematic diagram of a quick positioning fixture for a hot extrusion die provided by the present utility model;

[0020] Figure 3 is a standard three-view drawing of a quick positioning fixture for a hot extrusion die provided by the present utility model;

[0021] In the figure: 1. Base; 101. Wire walking hole; 2. Column; 201. Positioning hole; 202. Support groove; 3. Pin; 4. Workpiece; 401. Mounting hole; 402. Alignment edge. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] The following further detailed description of the present utility model is made in conjunction with the accompanying drawings and specific embodiments. According to the following description and the claims, the advantages and features of the present utility model will be clearer. It should be noted that the accompanying drawings are all in a very simplified form and use non-precise scales, only for the purpose of facilitating and clearly assisting in explaining the purpose of the embodiments of the present utility model.

[0023] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise specified, the meaning of "a plurality" is two or more.

[0024] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood through specific situations. Embodiment

[0025] The present utility model provides a quick positioning fixture for a hot extrusion die. Please refer to Figures 1 to 3 , which includes a base 1, a pair of columns 2 provided on the base 1, and a plurality of pins 3 for installing the die;

[0026] The column 2 includes a plurality of pairs of positioning holes 201 penetrating through its interior for adjusting and fixing the position of the die;

[0027] The column 2 further includes a support groove 202 provided on its upper surface for quickly supporting the die.

[0028] The base 1 includes a wire threading hole 101 running through its interior; the plug pin 3 is arranged between the column 2 and the workpiece 4 for mounting and fixing the workpiece 4; the workpiece 4 includes a pair of mounting holes 401 provided on one side thereof; and an alignment edge 402 provided on one side of the workpiece 4; the positional distance relationship between the support groove 202 and a plurality of positioning holes 204 opposite thereto is set according to the center distance between the mounting holes 401, so that the positioning holes 204 can be applicable to workpieces 4 of different specifications; one of the plug pins 3 is used to connect the mounting hole 401 and the positioning hole 204, and the other plug pin 3 is used to connect the other mounting hole 401 and the support groove 202; the support groove 202 is semi-circular; the arc radii and hole diameters of the support groove 202, the positioning hole 201 and the mounting hole 401 are the same.

[0029] It should be noted that what this fixture needs to process is the protruding part of the male mold of a micro-channel tube mold (also known as an inclined rib tube mold). It is necessary to use wire electrical discharge machining to process multiple grooves, as Figure 1 shown. Among them, the left side is before processing, and the right side is after processing. The depth and angle of the grooves are limited. Since the wire cutting direction of the wire electrical discharge machine can only be vertically downward, the fixture not only needs to be positioned, but also needs to adjust the angle.

[0030] Preferably, the whole fixture is made of H13 die steel, and the specific material is 4Cr5MoSiV1. Its chemical composition is as follows: carbon (C): 0.32 - 0.45%, silicon (Si): 0.80 - 1.20%, manganese (Mn): 0.20 - 0.50%, sulfur (S): ≤0.030%, phosphorus (P): ≤0.030%, chromium (Cr): 4.75 - 5.50%, vanadium (V): 0.80 - 1.20%, molybdenum (Mo): 1.10 - 1.75%. As a high-speed tool steel, the fixture made of this material has excellent wear resistance, heat resistance and corrosion resistance. It can withstand a large impact force during use and can maintain a long service life, which is very suitable for the use environment of the fixture.

[0031] Preferably, the wire threading hole 101 runs through the base 1 for the electrode wire to pass through the base 1 to process the mold. The range of the wire threading hole 101 in the working area of the electrode wire is larger, which can better protect the electrode wire and prevent accidental contact with the base 1.

[0032] Preferably, the positioning holes 201 and the support grooves 202 are opened on the columns on both sides. The installation methods of different positioning holes 201 and support grooves 202 correspond to workpieces 4 of different specifications, as Figure 3As shown in the figure, in this embodiment, there are the following installation methods: The diameter of the workpiece mold corresponding to A - B1 is 140 mm; the diameter of the workpiece mold corresponding to A - B2 is 150 mm; the diameter of the workpiece mold corresponding to A - B3 is 165 mm; the diameter of the workpiece mold corresponding to B - A1 is 160 mm; the diameter of the workpiece mold corresponding to B - A2 is 170 mm; the diameter of the workpiece mold corresponding to B - A3 is 180 mm. There are a total of six corresponding methods. Specifically, the number of holes can be increased or decreased according to the size requirements of the mold without any restrictions. In this way, a single fixture can clamp molds of multiple specifications, which can reduce the investment of enterprises in fixture design and manufacturing, lower the procurement and maintenance costs of equipment, and the ability to quickly replace molds can shorten the production cycle and reduce the downtime of wire - cutting machines, thereby improving the overall production efficiency.

[0033] Preferably, an alignment edge 402 is provided at one end of the workpiece 4. The alignment edge 402 is opened before processing and is parallel to the groove to be processed, which is used to align the tool to ensure the machining position accuracy. A pair of mounting holes 401 are provided on the machining side of the workpiece 4. The positions between the mounting holes 401 need to be calculated in detail. Specifically, when the workpiece 4 is installed in the corresponding positioning hole 201 of this fixture through the dowel pin 3, the alignment edge 402 can be perpendicular to the ground. At this time, the processed groove meets the processing requirements. To test whether the alignment edge 402 is aligned, a plumb bob can be used for detection.

[0034] During use, insert the dowel pins 3 into the mounting holes 401 of the workpiece 4 respectively. Then determine the specification parameters of the workpiece 4. For example, the diameter of the mold we need to process is 140 mm. Determine that the position of the positioning hole 201 is A - B1. Then determine the height relationship between the two mounting holes 401 through the alignment edge 402. First, insert the dowel pin 3 on one side of the lower - side mounting hole 401 into the B1 hole and make it abut. At this time, the dowel pin 3 on the other side of the mounting hole 401 should just support in the support groove 202 at A. At this time, observe that the alignment edge 402 is in a vertical state, and the installation is completed. At this time, wire - cutting processing can be carried out.

[0035] In summary, the quick - positioning fixture for the hot - extrusion mold of the present utility model realizes the fixation of the column and the processing mold through the dowel pin, improves the positioning accuracy, shortens the assembly time, thereby significantly improving the production efficiency and product quality. At the same time, it enhances the mold stability, simplifies the operation process, improves the safety, and by setting multiple pairs of positioning holes with different hole distances, it has good mold adaptability and is convenient to switch between different molds. In addition, through the combination of the positioning hole and the support groove, it realizes the effective support of the processing mold. This design makes the assembly and disassembly process of the mold fast, convenient, and the support groove side does not need to be disassembled. Only by concentrating the force on one side, it is more time - saving and labor - saving.

[0036] The above description is only a description of the preferred embodiments of the present utility model, and does not limit any scope of the present utility model. Any changes and modifications made by those of ordinary skill in the art of the present utility model according to the above disclosure shall fall within the protection scope of the claims.

Claims

1. A quick positioning fixture for a hot extrusion die, characterized in that: It comprises a base (1), a pair of upright posts (2) arranged on the base (1), and a plurality of latches (3) for mounting a mold; The upright column (2) comprises a plurality of pairs of positioning holes (201) running through the interior thereof, which are used to adjust and fix the position of the mold; The column (2) further comprises a support groove (202) arranged on its upper surface, which is used for quickly supporting the mould.

2. A quick positioning fixture for a hot extrusion die as claimed in claim 1, characterized in that: The base (1) comprises a wire feeding hole (101) penetrating therein.

3. A quick positioning fixture for a hot extrusion die as claimed in claim 1, characterized in that: The latch (3) is arranged between the column (2) and the processed part (4) and is used to install and fix the processed part (4).

4. A quick positioning fixture for a hot extrusion die as claimed in claim 3, characterized in that: The processing piece (4) comprises a pair of mounting holes (401) arranged on one side thereof, and an alignment edge (402) arranged on one side of the processing piece (4).

5. A quick positioning fixture for a hot extrusion die as claimed in claim 4, characterized in that: The position distance relationship between the support groove (202) and the plurality of positioning holes (201) corresponding thereto is set according to the hole center distance between the mounting holes (401), so that the positioning holes (201) can be suitable for workpieces (4) of different specifications.

6. A quick positioning fixture for a hot extrusion die as claimed in claim 5, characterized in that: One of the latches (3) is used to connect the mounting hole (401) and the positioning hole (201), and the other latch (3) is used to connect the other mounting hole (401) and the supporting groove (202).

7. A quick positioning fixture for a hot extrusion die as claimed in claim 6, characterized in that: The supporting groove (202) is in a semicircular arc shape; The arc radius and hole diameter of the supporting groove (202), the positioning hole (201) and the mounting hole (401) are the same.

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