Die for carbide base products with upper and lower positioning grooves

Abstract

The present invention relates to a die for a cemented carbide base product with upper and lower positioning grooves. The upper joint and the lower joint are arranged oppositely up and down, and have the same structure. The upper joint is provided with a cylindrical groove, and the lower joint is provided with a cylindrical groove. The upper part of the upper punch is matched in the cylindrical groove of the upper joint, and the lower part is matched in the female mold. The lower part of the lower punch is matched in the cylindrical groove of the lower joint, and the upper part is matched in the female mold. The bottom surface of the upper punch is provided with a convex rib, and the top surface of the lower punch is provided with a convex rib; the outer circle of the upper punch is provided with a punch positioning groove, and the upper joint is provided with a joint positioning hole. A locking screw can be screwed into the joint positioning hole and abutted against the punch positioning groove to position and lock the upper punch and the upper joint. The end face of the upper joint is provided with an upper positioning block, and the upper pad is provided with a positioning groove matched therewith. The upper positioning block is positioned and matched with the upper pad, and the upper pad is connected to an upper press. The upper punch is accurately positioned with the upper joint, and the upper joint is accurately positioned with the upper pad; the lower punch is accurately positioned with the lower joint, and the lower joint is accurately positioned with the lower pad.

Description

Technical Field

[0001] The invention relates to a die for a hard alloy base product with upper and lower positioning grooves. Background Art

[0002] A cemented carbide base product 6 with upper and lower positioning grooves, the structure of which is as follows Figure 1 As shown, there is an upper positioning groove on the top surface and a lower positioning groove on the bottom surface, and the upper positioning groove is parallel to the lower positioning groove. A mold is required for production. The gasket used for the early pressing of the product is an ordinary circular flat gasket, which is pressed using a punch and a joint. When the mold is clamped, it is difficult to judge whether the upper and lower positioning grooves are aligned. The alignment effect is not good if it is only identified by the naked eye. In addition, the punch will rotate slightly during the production process, causing the upper and lower positioning grooves to be misaligned, which can easily cause defective products. Summary of the invention

[0003] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a die for a cemented carbide base product with upper and lower positioning grooves.

[0004] The purpose of the present invention is achieved through the following technical solutions:

[0005] A die for a carbide base product with upper and lower positioning grooves, characterized in that it includes a female die, an upper joint located thereon and a lower joint located thereunder, the upper joint and the lower joint being arranged opposite to each other in upper and lower directions, the upper joint being provided with a cylindrical groove for accommodating and positioning an upper punch, the lower joint being provided with a cylindrical groove for accommodating and positioning a lower punch, the upper portion of the upper punch being able to fit in the cylindrical groove of the upper joint, and the lower portion being able to fit in the female die, the lower portion of the lower punch being able to fit in the cylindrical groove of the lower joint, and the upper portion being able to fit in the female die, the bottom surface of the upper punch being provided with a convex rib for forming an upper positioning groove of a product, and the top surface of the lower punch being provided with a convex rib for forming a lower positioning groove of a product;

[0006] The outer circle of the upper punch is provided with a punch positioning groove, and correspondingly, the upper joint is provided with a joint positioning hole, a locking screw can be screwed into the joint positioning hole and abutted against the punch positioning groove, so as to position and lock the upper punch and the upper joint, and an upper positioning block is provided on the end face of the upper joint, and correspondingly, the upper pad is provided with a positioning groove matched therewith, the upper positioning block is positioned and matched with the upper pad, and the upper pad is connected to the upper press;

[0007] The outer circle of the lower punch is provided with a punch positioning groove, and correspondingly, the lower joint is provided with a joint positioning hole. A locking screw can be screwed into the joint positioning hole and abutted against the punch positioning groove to position and lock the lower punch and the lower joint. A lower positioning block is provided on the end face of the lower joint, and correspondingly, the lower pad is provided with a positioning groove matching therewith. The lower positioning block is positioned and matched with the lower pad, and the lower pad is connected to the lower press.

[0008] Furthermore, in the above-mentioned die of the cemented carbide base product with upper and lower positioning grooves, the outer circle of the upper punch is provided with a concave wedge-shaped punch positioning groove, and correspondingly, the side wall of the upper joint is provided with an oblique joint positioning hole.

[0009] Furthermore, in the above-mentioned mold of the cemented carbide base product with upper and lower positioning grooves, the notch of the punch positioning groove of the upper punch forms an angle of 7° with the axial direction, and the joint positioning hole of the upper joint forms an angle of 7° with the radial direction.

[0010] Furthermore, in the above-mentioned die of the cemented carbide base product with upper and lower positioning grooves, the notch of the punch positioning groove of the upper punch is downward, and the joint positioning hole of the upper joint is inclined upward.

[0011] Furthermore, in the above-mentioned die of the cemented carbide base product with upper and lower positioning grooves, the outer circle of the lower punch is provided with a concave wedge-shaped punch positioning groove, and correspondingly, the side wall of the lower joint is provided with an oblique joint positioning hole.

[0012] Furthermore, in the above-mentioned mold of the cemented carbide base product with upper and lower positioning grooves, the notch of the punch positioning groove of the lower punch forms an angle of 7° with the axial direction, and the joint positioning hole of the lower joint forms an angle of 7° with the radial direction.

[0013] Furthermore, in the above-mentioned die of the cemented carbide base product with upper and lower positioning grooves, the notch of the punch positioning groove of the lower punch is upward, and the joint positioning hole of the lower joint is obliquely downward.

[0014] Furthermore, in the above-mentioned mold of the cemented carbide base product with upper and lower positioning grooves, an upper positioning block is set at the edge of the end surface of the upper joint, and the upper pad is provided with a cross-shaped positioning groove, the center point of which coincides with the center point of the upper pad.

[0015] Furthermore, in the above-mentioned mold of the cemented carbide base product with upper and lower positioning grooves, a lower positioning block is set at the edge of the end surface of the lower joint, and the lower pad is provided with a cross-shaped positioning groove, the center point of which coincides with the center point of the lower pad.

[0016] Compared with the prior art, the present invention has significant advantages and beneficial effects, which are specifically embodied in the following aspects:

[0017] ① The upper punch and the upper joint are precisely positioned and matched, and the upper joint and the upper pad are precisely positioned and matched; the lower punch and the lower joint are precisely positioned and matched, and the lower joint and the lower pad are precisely positioned and matched; thus, the upper and lower parts are quickly and accurately positioned, the bottom convex rib of the upper punch is parallel to the top convex rib of the lower punch, the bottom convex rib of the upper punch forms the upper positioning groove of the product, and the top convex rib of the lower punch forms the lower positioning groove of the product, and the cemented carbide base product is pressed in the female mold, and the upper positioning groove of the cemented carbide base product is parallel to the lower positioning groove without misalignment;

[0018] ② The upper and lower parts are positioned quickly and accurately, and the upper punch and the lower punch will not rotate relative to each other during the production process;

[0019] ③ An upper positioning block is set at the edge of the end face of the upper joint, and the upper pad is provided with a cross-shaped positioning groove for matching. A lower positioning block is set at the edge of the end face of the lower joint, and the lower pad is provided with a cross-shaped positioning groove for matching. The cross-shaped positioning groove of the upper pad and the cross-shaped positioning groove of the lower pad have multiple direction options, which can be quickly and accurately positioned when different products may require the upper and lower positioning grooves to be vertical or even at a certain angle;

[0020] ④ It is convenient and quick to clamp, and the positioning is accurate and reliable. The produced carbide base products with upper and lower positioning grooves have no misalignment of the upper and lower positioning grooves, no defective products, and the application effect is very ideal.

[0021] Other features and advantages of the present invention will be described in the following description, and partly become apparent from the description, or be understood by practicing the specific embodiments of the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures particularly pointed out in the written description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0023] Figure 1 : A schematic diagram of the structure of a cemented carbide base product with upper and lower positioning grooves;

[0024] Figure 2 : A schematic structural diagram of the mold of the present invention;

[0025] Figure 3 : Schematic diagram of the structure of the upper punch;

[0026] Figure 4 : Schematic diagram of the main view of the upper joint;

[0027] Figure 5 : Schematic diagram of top view of the upper joint;

[0028] Figure 6 : Schematic diagram of the upper pad viewed from above.

[0029] The meanings of the reference symbols in the figures are shown in the following table:

[0030] DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. The components of the embodiments of the present invention generally described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents the selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative work belong to the scope of protection of the present invention.

[0032] It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings. At the same time, in the description of the present invention, directional terms and order terms are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0033] like Figures 2 to 6 As shown, a mold of a cemented carbide base product with upper and lower positioning grooves includes a female mold 7, an upper joint 4 located thereon, and a lower joint 11 located thereunder, the upper joint 4 and the lower joint 11 are arranged opposite to each other up and down, the upper joint 4 is provided with a cylindrical groove for accommodating and positioning an upper punch 5, the lower joint 11 is provided with a cylindrical groove for accommodating and positioning a lower punch 12, the upper portion of the upper punch 5 can be matched in the cylindrical groove of the upper joint 4, and the lower portion can be matched in the female mold 7, the lower portion of the lower punch 12 can be matched in the cylindrical groove of the lower joint 11, and the upper portion can be matched in the female mold 7, the bottom surface of the upper punch 5 is provided with a convex rib for forming the upper positioning groove of the product, and the top surface of the lower punch 12 is provided with a convex rib for forming the lower positioning groove of the product;

[0034] The outer circle of the upper punch 5 is provided with a punch positioning groove 501, and correspondingly, the upper joint 4 is provided with a joint positioning hole 401, a locking screw can be screwed into the joint positioning hole 401 and abut against the punch positioning groove 501, so as to position and lock the upper punch 5 and the upper joint 4, and the end surface of the upper joint 4 is provided with an upper positioning block 3, and correspondingly, the upper cushion block 2 is provided with a positioning groove 201 matched therewith, the upper positioning block 3 is positioned and matched with the upper cushion block 2, and the upper cushion block 2 is connected to the upper press 1;

[0035] The outer circle of the lower punch 12 is provided with a punch positioning groove, and correspondingly, the lower joint 11 is provided with a joint positioning hole. A locking screw can be screwed into the joint positioning hole and abut against the punch positioning groove to position and lock the lower punch 12 and the lower joint 11. The end face of the lower joint 11 is provided with a lower positioning block 10, and correspondingly, the lower pad block 9 is provided with a positioning groove matched therewith. The lower positioning block 10 is positioned and matched with the lower pad block 9, and the lower pad block 9 is connected to the lower press 8.

[0036] like Figures 3-4 The outer circle of the upper punch 5 is provided with an inwardly concave wedge-shaped punch positioning groove 501, the notch of the punch positioning groove 501 is downward, and the notch forms an angle of 7° with the axial direction. Correspondingly, the side wall of the upper joint 4 is provided with a joint positioning hole 401 obliquely upward, and the joint positioning hole 401 forms an angle of 7° with the radial direction.

[0037] The outer circle of the lower punch 12 is provided with an inwardly concave wedge-shaped punch positioning groove, the notch of the punch positioning groove of the lower punch 12 is upward, and the notch forms an angle of 7° with the axial direction. Correspondingly, the side wall of the lower joint 11 is provided with a joint positioning hole obliquely downward, and the joint positioning hole of the lower joint 11 forms an angle of 7° with the radial direction.

[0038] like Figures 5-6 An upper positioning block 3 is arranged at the edge of the end face of the upper joint 4 , and the upper cushion block 2 is provided with a cross-shaped positioning groove 201 , the center point of which coincides with the center point of the upper cushion block 2 .

[0039] A lower positioning block 10 is arranged at the edge of the end surface of the lower joint 11 , and the lower cushion block 9 is provided with a cross-shaped positioning groove, the center point of which coincides with the center point of the lower cushion block 9 .

[0040] When clamping the mold, the upper positioning groove of the product and the punch positioning groove 501 of the upper punch are at a fixed direction angle in the cross section and remain consistent. The locking screw is screwed into the joint positioning hole 401 and abuts against the punch positioning groove 501, so that the upper punch 5 and the upper joint 4 are positioned and locked. The upper positioning block 3 on the upper joint 4 is positioned and matched with the positioning groove 201 of the upper pad 2, and the upper pad 2 is connected to the upper press 1; in this way, the upper punch 5 and the upper joint 4 are precisely positioned and matched, and the upper joint 4 and the upper pad 2 are precisely positioned and matched.

[0041] The lower positioning groove of the product and the punch positioning groove of the lower punch are at a fixed direction angle in the cross section and are consistent. The locking screw is screwed into the joint positioning hole of the lower joint and abuts against the punch positioning groove of the lower punch, so that the lower punch 12 and the lower joint 11 are positioned and locked. The lower positioning block 10 on the lower joint 11 is positioned and matched with the positioning groove of the lower pad 9, and the lower pad 9 is connected to the lower press 8; in this way, the lower punch and the lower joint 11 are precisely positioned and matched, and the lower joint 11 and the lower pad 9 are precisely positioned and matched.

[0042] Thus, the upper and lower parts are positioned quickly and accurately, the bottom convex rib of the upper punch 5 is parallel to the top convex rib of the lower punch 12, and they are consistent. The upper punch 5 and the lower punch 12 are pressed against each other in both directions. The bottom convex rib of the upper punch 5 forms the upper positioning groove of the product, and the top convex rib of the lower punch 12 forms the lower positioning groove of the product. The cemented carbide base product 6 is pressed in the female mold. The upper positioning groove of the cemented carbide base product 6 is parallel to the lower positioning groove without misalignment. In addition, the upper punch 5 and the lower punch 12 will not rotate relative to each other during the production process.

[0043] An upper positioning block 3 is set at the edge of the end face of the upper joint 4, the upper pad 2 is provided with a cross-shaped positioning groove 201 for matching, a lower positioning block 10 is set at the edge of the end face of the lower joint 11, and the lower pad 9 is provided with a cross-shaped positioning groove for matching. The cross-shaped positioning groove 201 of the upper pad 2 and the cross-shaped positioning groove of the lower pad 9 have multiple direction options, and can be quickly positioned when different products may require the upper and lower positioning grooves to be vertical or at a certain angle.

[0044] In summary, the present invention has a unique design, a novel structure, is convenient and quick to clamp, and has accurate and reliable positioning. The produced cemented carbide base product with upper and lower positioning grooves has no misalignment of the upper and lower positioning grooves and has a good use effect.

[0045] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention. It should be noted that similar numbers and letters represent similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0046] The above is only a specific implementation of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

[0047] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

Claims

1. A mold for a carbide base product with upper and lower positioning grooves, characterized in that: The invention comprises a female mold (7), an upper joint (4) located on the female mold, and a lower joint (11) located below the female mold. The upper joint (4) and the lower joint (11) are arranged opposite to each other in the upper and lower parts. The upper joint (4) is provided with a cylindrical groove for accommodating and positioning an upper punch (5). The lower joint (11) is provided with a cylindrical groove for accommodating and positioning a lower punch (12). The upper part of the upper punch (5) can be matched in the cylindrical groove of the upper joint (4), and the lower part can be matched in the female mold (7). The lower part of the lower punch (12) can be matched in the cylindrical groove of the lower joint (11), and the upper part can be matched in the female mold (7). The bottom surface of the upper punch (5) is provided with a convex rib for forming an upper positioning groove of a product. The top surface of the lower punch (12) is provided with a convex rib for forming a lower positioning groove of a product. The outer circle of the upper punch (5) is provided with a punch positioning groove (501), and correspondingly, the upper joint (4) is provided with a joint positioning hole (401). A locking screw can be screwed into the joint positioning hole (401) and abut against the punch positioning groove (501), so as to position and lock the upper punch (5) and the upper joint (4). The end surface of the upper joint (4) is provided with an upper positioning block (3), and correspondingly, the upper cushion block (2) is provided with a positioning groove (201) matched therewith. The upper positioning block (3) is positioned and matched with the upper cushion block (2), and the upper cushion block (2) is connected to the upper press (1); The outer circle of the lower punch (12) is provided with a punch positioning groove, and correspondingly, the lower joint (11) is provided with a joint positioning hole. A locking screw can be screwed into the joint positioning hole and abutted against the punch positioning groove to position and lock the lower punch (12) and the lower joint (11). The end surface of the lower joint (11) is provided with a lower positioning block (10), and correspondingly, the lower pad (9) is provided with a positioning groove matched therewith. The lower positioning block (10) is positioned and matched with the lower pad (9), and the lower pad (9) is connected to the lower press (8).

2. The mold of the cemented carbide base product with upper and lower positioning grooves according to claim 1, characterized in that: The outer circle of the upper punch (5) is provided with a concave wedge-shaped punch positioning groove (501), and correspondingly, the side wall of the upper joint (4) is provided with an oblique joint positioning hole (401).

3. The mold of the cemented carbide base product with upper and lower positioning grooves according to claim 2, characterized in that: The notch of the punch positioning groove (501) of the upper punch (5) forms an angle of 7° with the axial direction, and the joint positioning hole (401) of the upper joint (4) forms an angle of 7° with the radial direction.

4. The mold of the cemented carbide base product with upper and lower positioning grooves according to claim 2, characterized in that: The notch of the punch positioning groove (501) of the upper punch (5) faces downward, and the joint positioning hole (401) of the upper joint (4) faces obliquely upward.

5. The mold of the cemented carbide base product with upper and lower positioning grooves according to claim 1, characterized in that: The outer circle of the lower punch (12) is provided with a concave wedge-shaped punch positioning groove, and correspondingly, the side wall of the lower joint (11) is provided with an oblique joint positioning hole.

6. The mold of the cemented carbide base product with upper and lower positioning grooves according to claim 5, characterized in that: The notch of the punch positioning groove of the lower punch (12) forms an angle of 7° with the axial direction, and the joint positioning hole of the lower joint (11) forms an angle of 7° with the radial direction.

7. The mold of the cemented carbide base product with upper and lower positioning grooves according to claim 5, characterized in that: The notch of the punch positioning groove of the lower punch (12) is upward, and the joint positioning hole of the lower joint (11) is obliquely downward.

8. The mold of the cemented carbide base product with upper and lower positioning grooves according to claim 1, characterized in that: An upper positioning block (3) is arranged at the edge of the end surface of the upper joint (4), and the upper cushion block (2) is provided with a cross-shaped positioning groove (201), the center point of which coincides with the center point of the upper cushion block (2).

9. The mold of the cemented carbide base product with upper and lower positioning grooves according to claim 1, characterized in that: A lower positioning block (10) is arranged at the edge of the end surface of the lower joint (11), and the lower cushion block (9) is provided with a cross-shaped positioning groove, the center point of which coincides with the center point of the lower cushion block (9).

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