CN215697357U - High-precision elastic punching die material belt positioning structure - Google Patents
High-precision elastic punching die material belt positioning structure Download PDFInfo
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- CN215697357U CN215697357U CN202121869341.4U CN202121869341U CN215697357U CN 215697357 U CN215697357 U CN 215697357U CN 202121869341 U CN202121869341 U CN 202121869341U CN 215697357 U CN215697357 U CN 215697357U
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Abstract
The utility model discloses a high-precision elastic stamping die material belt positioning structure, which relates to the field of stamping dies and comprises a lower die base and the like, wherein a concave die plate backing plate and a concave die plate are fixed on the lower die base; a through hole is arranged on the lower die base in a penetrating manner, a pin hole is arranged on the concave die plate corresponding to the through hole in a penetrating manner, and a floating material hole is arranged on the concave die plate corresponding to the pin hole in a penetrating manner; the floating block is embedded in the floating hole; the stamping material belt is arranged on the upper end surface of the floating material block, and a lower positioning pinhole penetrates through the position, corresponding to the positioning hole, of the floating material block; the stripper plate is fixed with a stripper plate base plate, one end of a positioning needle spring is fixed with the upper spring groove, the other end of the positioning needle spring extends into the lower spring groove and is fixed with the head of the positioning needle, the rod part of the positioning needle penetrates through the upper positioning needle hole, and the positioning needle slides up and down along the inner wall of the upper positioning needle hole. The conical positioning needle is tightly pressed on the punched material belt positioning hole by spring force, no gap exists between the conical positioning needle and the material belt positioning hole, and the positioning precision is higher.
Description
Technical Field
The utility model relates to the field of stamping dies, in particular to a high-precision elastic stamping die material belt positioning structure.
Background
In the existing material belt punching die structure, a gap exists between a positioning needle and a material belt positioning hole, so that the positioning precision is low. In addition, the positioning needle can scrape the material belt during processing to generate metal chips, so that the surface quality of the product is influenced. In order to ensure the processing precision of the material belt and the surface quality of a product, the positioning structure of the punching die needs to be improved.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects in the prior art, and provides a high-precision elastic stamping die material belt positioning structure which has the advantages of precision in positioning, no scraping and high product stamping speed.
The purpose of the utility model is achieved by the following technical scheme: the high-precision elastic stamping die material belt positioning structure comprises a lower die base, a stripper plate, a positioning needle spring, a positioning needle, a stamping material belt, a floating material block, a force transmission pin, a floating material spring and a spring fixing piece; a concave template base plate and a concave template are fixed on the lower die base, and the concave template is fixed on the concave template base plate; a through hole is arranged on the lower die base in a penetrating manner and used for fixedly mounting a spring fixing piece, a pin hole is arranged on the concave die plate corresponding to the through hole in a penetrating manner, and a floating material hole is arranged on the concave die plate corresponding to the pin hole in a penetrating manner; the diameter of the pin hole is smaller than that of the through hole and that of the floating material hole; the floating material block is embedded in the floating material hole and moves up and down along the inner wall of the floating material hole; one end of the floating material spring is fixed on the spring fixing piece, the other end of the floating material spring is fixed on the head of the force transmission pin, the head of the force transmission pin is clamped against the outer edge of the pin hole, and the rod part of the force transmission pin extends into the pin hole and is propped against the lower end face of the floating material block; the punching material belt provided with the positioning hole is arranged on the upper end surface of the floating material block, and a lower positioning pinhole penetrates through the position, corresponding to the positioning hole, of the floating material block; the stripper plate arranged right above the female die plate is controlled and driven by external equipment, a stripper plate base plate is fixed on the stripper plate, and a trough is arranged at the position, corresponding to the stamping material belt, of the lower end surface of the stripper plate to accommodate the stamping material belt; an upper spring groove is formed in the lower end face of the stripper plate base plate, a lower spring groove is formed in the position, corresponding to the upper spring groove, of the upper end face of the stripper plate, and an upper positioning needle hole penetrates between the bottom of the lower spring groove and the lower end face of the stripper plate; one end of a positioning needle spring is fixed with the upper spring groove, the other end of the positioning needle spring extends into the lower spring groove and is fixed with the head of the positioning needle, the rod part of the positioning needle penetrates through the upper positioning needle hole, the tail part of the positioning needle extends out of the lower end face of the stripper plate and is located right above the positioning hole, and the positioning needle slides up and down along the inner wall of the upper positioning needle hole.
As a further technical scheme, the depth of the trough is equal to the thickness of the stamping material belt.
As a further technical scheme, the diameter of the upper positioning pin hole is smaller than the width of the lower spring groove, so that the head of the positioning pin is clamped against the outer edge of the upper positioning pin hole.
As a further technical scheme, the tail part of the positioning needle adopts a conical structure, and the diameter of the rod part of the positioning needle is larger than that of the positioning hole.
Preferably, the spring fixing member is a set screw.
The utility model has the beneficial effects that:
1. the conical positioning needle is pressed on the punched material belt positioning hole by spring force, no gap exists between the conical positioning needle and the material belt positioning hole, and the positioning precision is higher;
2. the straight section of the conical positioning needle is not inserted into the positioning hole, and is not scraped with a stamping material belt in the process of opening and closing the die, so that metal chips are basically not generated, and the surface quality of a product is improved;
3. the conical positioning needle can not generate the risk of belt material, does not need an additional material-removing pin to prevent the product from being taken, and can improve the punching speed of the product.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention in a mold-open state.
Fig. 2 is a partially enlarged schematic view of a region a in fig. 1.
Fig. 3 is a partially enlarged view of the region B in fig. 1.
Fig. 4 is a schematic structural diagram of the embodiment of the utility model in a mold clamping state.
Fig. 5 is a partially enlarged schematic view of the region C in fig. 4.
Description of reference numerals: 1. a lower die holder; 1-1, through holes; 2. a cavity plate backing plate; 2-1, pin holes; 3. a cavity plate; 3-1, floating material holes; 4. a material removing plate; 4-1, a trough; 4-2, lower spring groove; 4-3, arranging a positioning pinhole; 5. a stripper plate backing plate; 5-1, an upper spring groove; 6. a pilot pin spring; 7. a positioning pin; 8. stamping the material belt; 8-1, positioning holes; 9. a float block; 9-1, lower positioning pin holes; 10. a force transfer pin; 11. a float spring; 12 stop screwing.
Detailed Description
The utility model will be described in detail below with reference to the following drawings:
example (b): as shown in the attached drawings 1-3, the high-precision elastic stamping die material belt positioning structure comprises a lower die holder 1, a stripper plate 4, a positioning needle spring 6, a positioning needle 7, a stamping material belt 8, a floating block 9, a force transmission pin 10 and a floating spring 11; a concave template backing plate 2 and a concave template 3 are fixed on the lower die base 1, and the concave template 3 is fixed on the concave template backing plate 2; the lower die holder 1 is provided with a through hole 1-1 for fixedly mounting a set screw 12. A pin hole 2-1 is arranged on the concave template base plate 2 in a penetrating way at the position corresponding to the through hole 1-1, and a floating material hole 3-1 is arranged on the concave template 3 in a penetrating way at the position corresponding to the pin hole 2-1; the diameter of the pin hole 2-1 is smaller than that of the through hole 1-1 and that of the float hole 3-1.
The floating material block 9 is embedded in the floating material hole 3-1 and moves up and down along the inner wall of the floating material hole 3-1; one end of the floating material spring 11 is fixed on the fixing screw 12, and the other end of the floating material spring 11 is fixed on the head of the force transmission pin 10. The head of the force transmission pin 10 is clamped against the outer edge of the pin hole 2-1, and the rod part of the force transmission pin 10 extends into the pin hole 2-1 and is propped against the lower end face of the floating material block 9. The force transfer pin 10 jacks up the floating block 9 under the action of the floating spring 11, so that the floating block 9 moves up and down along the inner wall of the floating hole 3-1. The punching material belt 8 provided with the positioning hole 8-1 is arranged on the upper end surface of the floating material block 9, and a lower positioning pinhole 9-1 penetrates through the position, corresponding to the positioning hole 8-1, on the floating material block 9.
The stripper plate 4 arranged right above the cavity plate 3 is controlled and driven by external equipment, a stripper plate backing plate 5 is fixed on the stripper plate 4, and as shown in fig. 3, a trough 4-1 is arranged at the position of the lower end surface of the stripper plate 4 corresponding to the stamping material belt 8 to accommodate the stamping material belt 8. An upper spring groove 5-1 is formed in the lower end face of the stripper plate backing plate 5, a lower spring groove 4-2 is formed in the position, corresponding to the upper spring groove 5-1, of the upper end face of the stripper plate 4, and an upper positioning needle hole 4-3 penetrates through the position between the bottom of the lower spring groove 4-2 and the lower end face of the stripper plate 4. One end of a positioning needle spring 6 is fixed with the upper spring groove 5-1, and the other end of the positioning needle spring 6 extends into the lower spring groove 4-2 and is fixed with the head of a positioning needle 7. The diameter of the upper positioning pin hole 4-3 is smaller than the width of the lower spring groove 4-2, so that the head of the positioning pin 7 is clamped against the outer edge of the upper positioning pin hole 4-3. The rod part of the positioning needle 7 penetrates through the upper positioning needle hole 4-3, so that the tail part of the positioning needle 7 extends out of the lower end surface of the stripper plate 4 and is positioned right above the positioning hole 8-1, and the positioning needle 7 slides up and down along the inner wall of the upper positioning needle hole 4-3. The tail part of the positioning needle 7 is of a conical structure, the diameter of the rod part of the positioning needle 7 is larger than that of the positioning hole 8-1, the positioning needle 7 is guaranteed to be in line contact with the positioning hole 8-1, no gap exists between the positioning needle and the positioning hole, and positioning accuracy is high. Meanwhile, the rod part (namely the straight section) of the positioning needle 7 is not inserted into the positioning hole 7, so that the contact area is small, the rod part of the positioning needle 7 and the stamping material belt 8 are not scraped in the process of opening and closing the die of the die, metal chips are basically not generated, and the surface quality of a product is improved.
Referring to fig. 4 and 5, the depth of the trough 4-1 is equal to the thickness of the stamping material belt 8, so that when the cavity plate 3 and the stripper plate 4 are assembled, the stamping material belt 8 is tightly attached to the lower end surface of the stripper plate 4.
Preferably, the float spring 11 is a rectangular spring.
The working process of the utility model is as follows: when the external equipment drives the stripper plate 4 to downwards close the die, the positioning needle 7 synchronously moves downwards under the driving of the stripper plate 4, the positioning needle 7 starts to guide the stamping material strip 8 along with the gradual entry of the tip end (namely the conical tail) of the positioning needle 7 into the positioning hole 8-1 of the stamping material strip 8, when the positioning hole 8-1 of the stamping material strip 8 is completely sleeved at the conical tail of the positioning needle 7, the positioning needle 7 stops moving downwards, but the stripper plate 4 continues to move downwards, the positioning needle spring 6 is compressed, a certain retaining force can be given to the positioning needle 7, and the relative position of the stamping material strip 8 and the positioning needle 7 is kept unchanged.
And then, the stripper plate 4 continues to move downwards to push the floating material block 9 to move downwards and further push the force transmission pin 10 to move downwards, at the moment, the floating material spring 11 continues to be compressed, upward holding force is provided for the floating material block 9 through the force transmission pin 10, the upper surface of the stamping material belt 8 is enabled to be tightly attached to the upper wall of the trough 4-1, and due to the fact that the depth of the trough 4-1 is equal to the thickness of the stamping material belt 8, when the lower surface, far away from the trough 4-1, of the stripper plate 4 contacts the upper surface of the concave template 3, the positioning action is completed.
It should be understood that equivalent alterations and modifications of the technical solution and the inventive concept of the present invention by those skilled in the art should fall within the scope of the appended claims.
Claims (5)
1. The utility model provides a high accuracy elasticity die material area location structure which characterized in that: the stamping die comprises a lower die base (1), a stripper plate (4), a positioning needle spring (6), a positioning needle (7), a stamping material belt (8), a floating block (9), a force transmission pin (10), a floating spring (11) and a spring fixing piece;
a concave template backing plate (2) and a concave template (3) are fixed on the lower die base (1), and the concave template (3) is fixed on the concave template backing plate (2); a through hole (1-1) is arranged on the lower die seat (1) in a penetrating manner and used for installing a spring fixing piece, a pin hole (2-1) is arranged on the concave die plate backing plate (2) in a penetrating manner at a position corresponding to the through hole (1-1), and a floating material hole (3-1) is arranged on the concave die plate (3) in a penetrating manner at a position corresponding to the pin hole (2-1); the diameter of the pin hole (2-1) is smaller than that of the through hole (1-1) and that of the floating material hole (3-1);
the floating material block (9) is embedded in the floating material hole (3-1) and moves up and down along the inner wall of the floating material hole (3-1); one end of the floating spring (11) is connected to the spring fixing piece, the other end of the floating spring (11) is connected to the head of the force transmission pin (10), the head of the force transmission pin (10) is clamped against the outer edge of the pin hole (2-1), and the rod part of the force transmission pin (10) extends into the pin hole (2-1) and is propped against the lower end face of the floating block (9); a stamping material belt (8) provided with a positioning hole (8-1) is arranged on the upper end surface of a floating material block (9), and a lower positioning needle hole (9-1) penetrates through the floating material block (9) at a position corresponding to the positioning hole (8-1);
the stripper plate (4) arranged above the cavity plate (3) is controlled and driven by external equipment, a stripper plate backing plate (5) is fixed on the stripper plate (4), and a trough (4-1) is arranged at the position, corresponding to the stamping material belt (8), of the lower end surface of the stripper plate (4) to accommodate the stamping material belt (8); an upper spring groove (5-1) is formed in the lower end face of the stripper plate base plate (5), a lower spring groove (4-2) is formed in the position, corresponding to the upper spring groove (5-1), of the upper end face of the stripper plate (4), and an upper positioning needle hole (4-3) penetrates between the bottom of the lower spring groove (4-2) and the lower end face of the stripper plate (4); one end of a positioning needle spring (6) is fixed with the upper spring groove (5-1), the other end of the positioning needle spring (6) extends into the lower spring groove (4-2) and is fixed with the head of a positioning needle (7), the rod part of the positioning needle (7) penetrates through the upper positioning needle hole (4-3), the tail part of the positioning needle (7) extends out of the lower end face of the stripper plate (4) and is positioned right above the positioning hole (8-1), and the positioning needle (7) slides up and down along the inner wall of the upper positioning needle hole (4-3).
2. The high-precision elastic die material belt positioning structure according to claim 1, characterized in that: the depth of the trough (4-1) is equal to the thickness of the stamping material belt (8).
3. The high-precision elastic die material belt positioning structure according to claim 1, characterized in that: the diameter of the upper positioning pin hole (4-3) is smaller than the width of the lower spring groove (4-2), so that the head of the positioning pin (7) is clamped against the outer edge of the upper positioning pin hole (4-3).
4. The high-precision elastic die material belt positioning structure according to claim 1, characterized in that: the tail part of the positioning needle (7) adopts a conical structure, and the diameter of the rod part of the positioning needle (7) is larger than that of the positioning hole (8-1).
5. The high-precision elastic die material belt positioning structure according to claim 1, characterized in that: the spring fixing piece is a stop screw (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121869341.4U CN215697357U (en) | 2021-08-11 | 2021-08-11 | High-precision elastic punching die material belt positioning structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121869341.4U CN215697357U (en) | 2021-08-11 | 2021-08-11 | High-precision elastic punching die material belt positioning structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215697357U true CN215697357U (en) | 2022-02-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121869341.4U Active CN215697357U (en) | 2021-08-11 | 2021-08-11 | High-precision elastic punching die material belt positioning structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215697357U (en) |
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2021
- 2021-08-11 CN CN202121869341.4U patent/CN215697357U/en active Active
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