Initial positioning device for stamping die

Abstract

The utility model discloses an initial positioning device for a stamping die. The initial positioning device comprises a guide plate material bearing plate, a material guide plate, a spring limiting screw, a positioning base, a spring, a positioning needle and a set screw, the guide plate is fixedly mounted on the guide plate bearing plate, the lower end of the spring limiting screw is fixed on the guide plate bearing plate, the positioning base is movably sleeved in the middle of the spring limiting screw, the spring is sleeved in the middle of the spring limiting screw, the upper end of the positioning needle is fixed on the positioning base, and the lower end of the positioning needle is inserted into a guide hole of the guide plate in a clearance manner. During production, the positioning needle can be rotated to the position above the material guide plate, the positioning needle penetrates through the material guide plate and then penetrates through the material belt, initial positioning of the material belt is achieved, meanwhile, due to the fact that the spring always presses the positioning base during positioning, the positioning base drives the positioning needle to downwards penetrate through the positioning hole in the material belt, and the material belt is positioned. The utility model overcomes the defect that the mould debugging work can be completed by cooperation of two persons, and has the advantages of quick and simple positioning and convenience in operation.

Description

Technical Field

[0001] The utility model relates to a stamping die, in particular to an initial positioning device for the stamping die. Background Art

[0002] The lead frame concave mold is a mold for concave molding of the lead frame carrier. It belongs to the post-production process of the lead frame. The material produced is the lead frame strip of the flat sheet produced by stamping in the previous process. When concave molding, the material must be guided first, that is, the plain material strip is guided into the mold. At this time, the strip needs to be initially positioned to prevent the strip from shaking. The traditional method is to use a visual method to align the positioning hole of the strip with the positioning pin in the mold for positioning. However, due to the low closing height of the mold and the guide plate blocking the strip, the actual production process is very difficult, time-consuming and labor-intensive. Utility Model Content

[0003] The utility model aims to provide a punching die initial positioning device which has the advantages of quick and simple positioning and convenient operation.

[0004] To achieve the above purpose, the technical solution of the utility model is:

[0005] The utility model is an initial positioning device for a stamping die, comprising a guide plate, a material bearing plate, a material guide plate, a spring limit screw, a positioning base, a spring, a positioning pin and a stop screw;

[0006] The guide plate is fixedly installed on the top surface of the guide plate receiving plate, the lower end of the spring limit screw passes through the through slot on the guide plate and is fixed on the guide plate receiving plate, one side of the positioning base is movably sleeved on the middle part of the spring limit screw, the spring is sleeved on the middle part of the spring limit screw and the two ends of the spring respectively rest on the head of the spring limit screw and the positioning base; the upper end of the positioning pin is sleeved in the stepped hole on the other side of the positioning base and the head on the positioning pin rests on the stepped surface of the stepped hole of the positioning base, the lower end of the positioning pin passes through the stepped hole and is inserted into the guide hole on the inner side of the guide plate in a clearance fit manner, the set screw is screwed on the upper part of the stepped hole of the positioning base and rests on the head on the positioning pin.

[0007] The guide plate material receiving plate is provided with a clearance hole, and the clearance hole is located just below the guide hole of the guide plate so as to allow the positioning needle to penetrate.

[0008] The material guide plate is composed of a right material guide plate and a left material guide plate; the right material guide plate and the left material guide plate are respectively fixed on both sides of the guide plate material receiving plate and are symmetrically arranged, and a passage for the material belt is formed between the right material guide plate and the left material guide plate.

[0009] The guide plate material receiving plate is fixed on the top surface of the concave template and one side thereof extends out of the top surface of the concave template, and the left guide plate in the guide plates is installed on the extended section of the guide plate material receiving plate.

[0010] After adopting the above scheme, during production of the utility model, the positioning needle can be rotated to the top of the guide plate, the positioning needle passes through the guide plate, and then passes through the material belt to realize the initial positioning of the material belt. At the same time, since the spring is always pressing the positioning base during positioning, the positioning base carries the positioning needle downward through the positioning hole on the material belt to position the material belt. After positioning, the operator does not need to hold the material belt or press the positioning needle with one hand, and can free up his hands to operate the punch press. For safety reasons, the punch press needs to be operated with both hands. The utility model overcomes the defect that two people need to cooperate to complete the mold debugging work, and has the advantages of fast and easy positioning and easy operation.

[0011] The utility model is further described below in conjunction with the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a state diagram of the present utility model without positioning;

[0013] Figure 2 It is a state diagram of the positioning of the utility model;

[0014] Figure 3 It is a front view of the utility model installed on the mold;

[0015] Figure 4 It is a top view of the utility model installed on the mold;

[0016] Figure 5 It is a front and side view of the utility model installed on a mold. DETAILED DESCRIPTION

[0017] like Figure 1-Figure 5 As shown, the utility model is an initial positioning device for a stamping die, comprising a guide plate and a material receiving plate 1, a material guide plate 2, a spring limit screw 3, a positioning base 4, a spring 5, a positioning needle 6, and a stop screw 7.

[0018] The guide plate carrier plate 1 is fixed on the top surface of the concave plate 200 and one side thereof protrudes from the top surface of the concave plate 200. The guide plate 2 is composed of a right guide plate 21 and a left guide plate 22; the right guide plate 21 and the left guide plate 22 are respectively fixed on both sides of the guide plate carrier plate 1 and are symmetrically arranged, wherein the left guide plate 22 is installed on the protruding section of the guide plate carrier plate 1, and a passage for the material belt 100 is formed between the right guide plate 21 and the left guide plate 22. The lower end of the spring limit screw 3 passes through the through slot 221 on the left guide plate 22 and is fixed on the guide plate receiving plate 1. One side of the positioning base 4 is movably sleeved on the middle part of the spring limit screw 3. The spring 5 is sleeved on the middle part of the spring limit screw 3 and the two ends of the spring 5 are respectively pressed against the head 31 of the spring limit screw 3 and the positioning base 4, forming a downward pressure on the positioning base 4. The upper end of the positioning needle 6 is sleeved in the stepped hole 41 on the other side of the positioning base 4 and the positioning needle 6 The head 61 on it abuts against the stepped surface of the stepped hole 41 of the positioning base 4, and the lower end of the positioning pin 6 passes through the stepped hole 41 and is inserted into the guide hole 222 on the inner side of the left guide plate 22 in a clearance fit manner. The set screw 7 is screwed on the upper part of the stepped hole 41 of the positioning base 4 and abuts against the head 61 on the positioning pin 6 to fix the positioning pin 6. A clearance hole 11 is opened in the guide plate receiving plate 1, and the clearance hole 11 is located directly below the guide hole 222 of the left guide plate 22 to facilitate the insertion of the positioning pin 6.

[0019] The working principle of this utility model:

[0020] During production, the positioning needle 6 can be rotated to the top of the guide plate 2, and the positioning needle 6 passes through the guide hole 222 of the guide plate 2 and then passes through the material belt 100 to achieve the initial positioning of the material belt 100. At the same time, since the spring 5 is always pressing the positioning base 4 during positioning, the positioning base 4 carries the positioning needle 6 downward through the positioning hole on the material belt 100 to position the material belt 100.

[0021] The above description is only a preferred embodiment of the present invention, and therefore cannot be used to limit the scope of implementation of the present invention. That is, equivalent changes and modifications made according to the scope of the patent application of the present invention and the contents of the specification should still fall within the scope covered by the patent of the present invention.

Claims

1. A stamping die initial positioning device, characterized in that: It includes a guide plate receiving plate, a guide plate, a spring limit screw, a positioning base, a spring, a positioning pin, and a stop screw; The guide plate is fixedly installed on the top surface of the guide plate receiving plate, the lower end of the spring limit screw passes through the through slot on the guide plate and is fixed on the guide plate receiving plate, one side of the positioning base is movably sleeved on the middle part of the spring limit screw, the spring is sleeved on the middle part of the spring limit screw and the two ends of the spring respectively rest on the head of the spring limit screw and the positioning base; the upper end of the positioning pin is sleeved in the stepped hole on the other side of the positioning base and the head on the positioning pin rests on the stepped surface of the stepped hole of the positioning base, the lower end of the positioning pin passes through the stepped hole and is inserted into the guide hole on the inner side of the guide plate in a clearance fit manner, the set screw is screwed on the upper part of the stepped hole of the positioning base and rests on the head on the positioning pin.

2. The stamping die initial positioning device according to claim 1, characterized in that: The guide plate material receiving plate is provided with a clearance hole, and the clearance hole is located just below the guide hole of the guide plate so as to allow the positioning needle to penetrate.

3. The stamping die initial positioning device according to claim 1, characterized in that: The material guide plate is composed of a right material guide plate and a left material guide plate; the right material guide plate and the left material guide plate are respectively fixed on both sides of the guide plate material receiving plate and are symmetrically arranged, and a passage for the material belt is formed between the right material guide plate and the left material guide plate.

4. The stamping die initial positioning device according to claim 1 or 3, characterized in that: The guide plate material receiving plate is fixed on the top surface of the concave template and one side thereof extends out of the top surface of the concave template, and the left guide plate in the guide plates is installed on the extended section of the guide plate material receiving plate.

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