Stable positioning upper cutter insert

Abstract

The utility model provides an upper cutter insert capable of being stably positioned, and belongs to the field of mold accessories. The problem that in the middle leg cutting-off process of an existing electronic product, burrs are prone to occurring or cutting is not broken is solved. The upper cutter insert capable of being stably positioned comprises an insert body, a receding groove matched with a lower cover plate is formed in the punching face of the insert body, a positioning boss is arranged on the corresponding end face of the insert body, the table face of the positioning boss is a punching face, and a plurality of through grooves used for stably positioning an upper cutter are further formed in the punching face of the insert body. The insert body is of a rectangular structure, the multiple through grooves are of an I-shaped structure and are sequentially distributed in the insert body at intervals, the insert body is made of integrally-formed alloy steel, and the receding grooves and the through grooves are all located above the positioning boss. The utility model has the advantage of high efficiency.

Description

Technical Field

[0001] The utility model belongs to the field of mold accessories and relates to an upper knife insert, in particular to a stably positioned upper knife insert. Background Art

[0002] In the process of cutting and forming electronic chip products, the tool often wears out quickly, causing the burrs on the product legs to increase, curl, or even become uncut, resulting in the product being scrapped. If this is not discovered in time during the operation, the product yield will be seriously affected.

[0003] After finding the cause, it was determined that there were certain defects in the mold tool design. Therefore, it was urgent to improve the mold upper tool insert and lower track cover. Summary of the invention

[0004] The purpose of the utility model is to provide a stable positioning upper knife insert to solve the above problems existing in the prior art.

[0005] The purpose of the utility model can be achieved through the following technical solutions: a stably positioned upper knife insert, comprising an insert body, characterized in that a clearance groove matching with a lower cover plate is provided on the punching surface of the insert body, a positioning boss is provided on the corresponding end surface of the insert body, and the table surface of the positioning boss is a punching surface;

[0006] The punching surface of the insert body is also provided with a plurality of through grooves for firmly positioning the upper cutter;

[0007] The insert body is arranged in a rectangular structure;

[0008] A plurality of through grooves are arranged in an "I"-shaped structure and are sequentially spaced and distributed on the insert body;

[0009] The insert body is made of integrally formed alloy steel;

[0010] The clearance groove and the through groove are both located above the positioning boss.

[0011] In the above-mentioned firmly positioned upper knife insert, the inner wall of the rear end portion of the through groove is arranged in an inclined structure.

[0012] In the above-mentioned firmly positioned upper knife insert, a plurality of through grooves are arranged in a straight line structure at intervals at positions corresponding to the positioning bosses.

[0013] Compared with the prior art, the improvement of the structure of the stable positioning upper tool insert is simple, which greatly improves the defective situation of leg cutting in electronic semiconductor or chip products, eliminates the phenomenon of scrapping due to bent legs caused by uncut legs in the products. At the same time, it greatly improves the service life of the insert body and the upper tool on the middle leg from the original 1-2 months to 6-8 months, also improves the service life of the lower track cover plate matched with the insert body, reduces the defective rate of the products, and reduces the production cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 FIG. is a partial three-dimensional structural schematic diagram of the stable positioning upper tool insert.

[0015] Figure 2 FIG. is a partial three-dimensional structural schematic diagram of the existing upper tool insert.

[0016] Figure 3 FIG. is a partial half-sectional structural schematic diagram of the stable positioning upper tool insert.

[0017] In the figure, 1 is the insert body; 2 is the relief groove; 3 is the positioning boss; 4 is the cutting surface; 5 is the through groove. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] The following are specific embodiments of the present invention and in combination with the accompanying drawings, the technical solutions of the present invention will be further described, but the present invention is not limited to these embodiments.

[0019] As Figure 1 、 Figure 3 shown, the stable positioning upper tool insert of the present invention includes an insert body 1. A relief groove 2 for cooperating with the lower cover plate is provided on the cutting surface 4 of the insert body 1. A positioning boss 3 is provided on the corresponding end surface of the insert body 1. The table surface of the positioning boss 3 is the cutting surface 4. A plurality of through grooves 5 for stable positioning of the upper tool are also provided on the cutting surface 4 of the insert body 1. The insert body 1 is arranged in a rectangular structure. The plurality of through grooves 5 are arranged in a "worker" shape and are sequentially and spacedly distributed on the insert body 1. The insert body 1 is made of integrally formed alloy steel. The relief groove 2 and the through groove 5 are both located above the positioning boss 3.

[0020] The above structural improvement is simple, which greatly improves the defective situation of leg cutting in electronic semiconductor or chip products, eliminates the phenomenon of scrapping due to bent legs caused by uncut legs in the products. At the same time, it greatly improves the service life of the insert body 1 and the upper tool on the middle leg from the original 1-2 months to 6-8 months, also improves the service life of the lower track cover plate matched with the insert body 1, reduces the defective rate of the products, and reduces the production cost.

[0021] To elaborate further, for the convenience of guiding and positioning, the inner wall of the rear end of the through groove 5 is arranged in an inclined structure, and a plurality of through grooves 5 are arranged at intervals in a linear structure at the corresponding position of the positioning boss 3.

[0022] The relief groove 2 has been reduced compared to the structure of the relief groove 2 on the traditional upper tool insert, and the dimensions are adjusted at the corresponding position of the lower cover plate.

[0023] Such as Figure 2 As shown, the through groove 5 on the traditional upper tool insert is arranged in an open structure and cooperates with the wear groove at the lower end of the lower cover plate to form a complete structure. This structure is likely to cause the middle leg of the product to be unable to be cut off, resulting in relatively large burrs after cutting.

[0024] Such as Figure 1 Compared with Figure 2 The improved structure of the upper tool insert is more stable, enabling the middle leg of the product to be smoothly cut off and less likely to be unable to be cut off, greatly improving the qualified rate of the product.

[0025] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Those skilled in the art to which the present invention pertains can make various modifications or supplements to the described specific embodiments or use similar methods for substitution, but will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

[0026] Although terms such as insert body 1, relief groove 2, positioning boss 3, cutting surface 4, through groove 5, etc. are used more frequently herein, the possibility of using other terms is not excluded. Using these terms is only for more conveniently describing and explaining the essence of the present invention; interpreting them as any additional limitation is contrary to the spirit of the present invention.

Claims

1. A firmly positioned upper cutter insert, comprising an insert body (1), characterized in that: The corresponding end surface of the insert body (1) is provided with a positioning boss (3), the table surface of the positioning boss (3) is a punching surface (4), and a clearance groove (2) matching with the lower cover plate is located on the punching surface (4) of the insert body (1); The punching surface (4) of the insert body (1) is also provided with a plurality of through grooves (5) for firmly positioning the upper knife; The insert body (1) is arranged in a rectangular structure; A plurality of through grooves (5) are arranged in an "I"-shaped structure and are sequentially spaced and distributed on the insert body (1); The insert body (1) is made of integrally formed alloy steel; The clearance groove (2) and the through groove (5) are both located above the positioning boss (3).

2. A firmly positioned upper knife insert according to claim 1, characterized in that: The inner wall of the rear end portion of the through slot (5) is arranged in an inclined structure.

3. A firmly positioned upper knife insert according to claim 1, characterized in that: A plurality of the through grooves (5) are arranged in a straight line structure at intervals at corresponding positions of the positioning boss (3).

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