Special-shaped positioning pin of assembled stamping die

Abstract

The utility model discloses a special-shaped positioning pin for an assembled stamping die, which particularly relates to the technical field of die positioning and comprises a protective pin sleeve, a pin rod body is arranged on the inner end face of the protective pin sleeve, an adaptive clamping block is arranged at the upper end of the protective pin sleeve, and a first supporting sliding block is arranged on the lower side of the inner end face of the protective pin sleeve. A first supporting sliding groove is formed in the lower side of the outer end face of the pin rod body, and a top pin sleeve is arranged outside the upper end of the protective pin sleeve. When the pin rod is actually used, the pin rod main body can be conveniently protected under the corresponding arrangement state of the protective pin sleeve and the top pin sleeve, so that the punching die is prevented from being abraded during long-term work, the service life of the pin rod main body can be effectively prolonged, and the service life of the punching die is prolonged. And meanwhile, in the corresponding arrangement state of a second supporting sliding groove, an anti-disengaging groove, a second supporting sliding block, a first supporting sliding block and a first supporting sliding groove, the stability of the protective pin sleeve and the top pin sleeve installed on the outer end face of the pin rod body can be effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of mold positioning technology, and more specifically, to an irregularly shaped positioning pin for an assembled stamping mold. Background Technology

[0002] During the assembly of stamping dies, frequent maintenance and disassembly can lead to malfunctions in the fit between locating holes and locating pins, resulting in significant precision errors and a high number of defective products. Recalibrating and repairing the locating pins or holes would drastically increase costs and hinder sustainable development. For example, patent CN206009615U discloses an assembled stamping die locating pin, comprising an upper pin body, a lower pin body, and a misalignment pin positioned between them. Each of the upper pin body, lower pin body, and misalignment pin has a corresponding through hole in its center, within which a connecting rod is installed. Both ends of the upper and lower pin bodies have tapered countersunk holes. The misalignment pin includes a misalignment pin body and mating cones on both sides of the misalignment pin body. The lower end of the connecting rod has a cone cap, and the upper end of the connecting rod is fitted with a snap-fit ​​cone. The upper end of the connecting rod also has a threaded section with a fastening nut.

[0003] When the above-mentioned device is in use, it can reduce the damage to the positioning hole caused by interference fit, effectively eliminate the stress concentration problem between the positioning pin and the positioning hole, and improve the service life of the positioning hole. Compared with the prior art, this utility model can improve the service life of the positioning hole by three to five times, which greatly reduces the maintenance cost of enterprises. However, it is supported by bolts. When the upper pin, lower pin and misalignment pin bolts become loose, they are prone to displacement, which affects the service life and the stability and accuracy of the stamping die operation and positioning. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides an assembled stamping die irregular locating pin. The technical problem to be solved by the present invention is: how to increase the service life of the assembled stamping die locating pin and increase its working positioning stability and accuracy.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an assembled stamping die irregular positioning pin, including a cable shell, a reinforcing core provided in the middle of its inner end face, a first insulating shielding layer provided inside the cable shell, a wrapping steel wire layer provided inside the first insulating shielding layer, a wrapping layer provided on the inner end face of the wrapping steel wire layer, and an insulating filling layer provided on the inner end face of the wrapping layer.

[0006] The inner end of the insulating filler layer is provided with a metal wire outside the reinforcing core, the outer end face of the metal wire is provided with an insulating sleeve, and the outer end face of the insulating sleeve is provided with a separation and reinforcement layer.

[0007] In a preferred embodiment, a protective pin sleeve is provided, with a pin rod body on its inner end face, an adapter block on the upper end of the protective pin sleeve, a first support slider on the lower side of the inner end face of the protective pin sleeve, a first support groove on the lower side of the outer end face of the pin rod body, and a top pin sleeve on the outer side of the upper end of the protective pin sleeve.

[0008] The lower side of the inner end face of the top pin sleeve is provided with a second support slider, the outer side of the upper end of the pin body is provided with a second support groove, the lower side of the outer end face of the pin body is provided with an anti-disengagement groove, and the middle part of the upper end of the pin body is provided with a second threaded mounting hole.

[0009] In a preferred embodiment, a first concave nut groove is provided on the lower side of the outer end face of the protective pin sleeve, and a first threaded mounting hole is provided in the middle of the lower end of the pin rod body;

[0010] The first threaded mounting hole is provided with a first mounting bolt, and the upper end of the top pin sleeve is provided with a second concave nut groove.

[0011] In a preferred embodiment, the first mounting bolt passes through the interior of the first concave nut groove and extends into the interior of the first threaded mounting hole;

[0012] The outer end face of the first mounting bolt is adapted to the inner end face of the first threaded mounting hole by threaded engagement, and the second mounting bolt is provided inside the second threaded mounting hole.

[0013] In a preferred embodiment, the second mounting bolt passes through the center of the second concave nut groove and extends into the interior of the second threaded mounting hole;

[0014] The outer end face of the second mounting bolt is adapted to the inner end face of the second threaded mounting hole by threaded engagement, and the outer end face of the second support slider is adapted to the inner end face of the second support groove.

[0015] In a preferred embodiment, the outer end face of the pin body is adapted to the inner end face of the protective pin sleeve, and the inner end face of the top pin sleeve is adapted to the outer end face of the pin body.

[0016] The number of the first support sliders is multiple, and they are arranged in a ring array outside the center point of the protective pin sleeve in the top view direction. The inner end face of the first support groove is adapted to the outer end face of the first support slider.

[0017] In a preferred embodiment, there are multiple first and second support grooves, and they are arranged in a ring array outside the center point of the pin body in the top view direction.

[0018] The outer end face of the adapter block is matched with the inner end face of the anti-detachment groove by a snap-fit. The second support slider is provided in multiple ways and is arranged in a ring array outside the center point of the top pin sleeve in the top view direction.

[0019] The technical effects and advantages of this utility model are as follows:

[0020] In practical use, the corresponding arrangement of the protective pin sleeve and the top pin sleeve of this utility model can conveniently protect the main body of the pin, thereby avoiding wear during long-term operation of the stamping die and effectively increasing the service life of the pin body. At the same time, the corresponding arrangement of the second support slide groove, the anti-disengagement groove, the second support slider, the first support slider, and the first support slide groove can effectively increase the stability of the protective pin sleeve and the top pin sleeve when installed on the outer end face of the pin body. This prevents the protective pin sleeve and the top pin sleeve from sliding on the outer end face of the pin body when the first mounting bolt and the second mounting bolt become loose, thus avoiding any impact on the positioning accuracy and service life of the pin body. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0022] Figure 2 This is a schematic diagram of the overall front view cross-sectional structure of this utility model.

[0023] Figure 3 This is a schematic diagram of the top pin sleeve installation structure of this utility model.

[0024] Figure 4 This is a schematic diagram of the internal structure of the protective pin sleeve of this utility model.

[0025] The attached figures are labeled as follows: 1 Protective pin sleeve, 2 Top pin sleeve, 3 Second concave nut groove, 4 Pin rod body, 5 First concave nut groove, 6 First mounting bolt, 7 Second mounting bolt, 8 Second threaded mounting hole, 9 First threaded mounting hole, 10 Adaptor block, 11 Second support slide groove, 12 Anti-disengagement groove, 13 Second support slider, 14 First support slider, 15 First support slide groove. Detailed Implementation

[0026] This utility model provides an assembled stamping die irregular-shaped positioning pin, such as Figure 1 and 2As shown, it includes a protective pin sleeve 1, with a pin rod body 4 on its inner end face. The upper end of the protective pin sleeve 1 is provided with an adapter block 10, and the outer side of the upper end of the protective pin sleeve 1 is provided with a top pin sleeve 2. The protective pin sleeve 1 and the top pin sleeve 2 can protect the pin rod body 4, thereby preventing wear on the surface of the pin rod body 4 during long-term use and affecting its service life. A second threaded mounting hole 8 is opened in the middle of the upper end of the pin rod body 4, and a first concave nut groove 5 is opened on the lower side of the outer end face of the protective pin sleeve 1.

[0027] The lower end of the pin body 4 is provided with a first threaded mounting hole 9, and a first mounting bolt 6 is provided inside the first threaded mounting hole 9. The upper end of the top pin sleeve 2 is provided with a second concave nut groove 3. The first mounting bolt 6 passes through the inside of the first concave nut groove 3 and extends into the inside of the first threaded mounting hole 9. The outer end face of the first mounting bolt 6 is adapted to the inner end face of the first threaded mounting hole 9 by threaded engagement.

[0028] The second threaded mounting hole 8 is provided with a second mounting bolt 7. The second mounting bolt 7 passes through the middle of the second concave nut groove 3 and extends into the interior of the second threaded mounting hole 8. The outer end face of the second mounting bolt 7 is adapted to the inner end face of the second threaded mounting hole 8 by threaded engagement. The outer end face of the pin body 4 is adapted to the inner end face of the protective pin sleeve 1. The inner end face of the top pin sleeve 2 is adapted to the outer end face of the pin body 4.

[0029] like Figure 3 and 4 As shown, a first support slider 14 is provided on the lower side of the inner end face of the protective pin sleeve 1, a first support groove 15 is provided on the lower side of the outer end face of the pin body 4, a second support slider 13 is provided on the lower side of the inner end face of the top pin sleeve 2, a second support groove 11 is provided on the outer side of the upper end of the pin body 4, and an anti-disengagement groove 12 is provided on the lower side of the outer end face of the pin body 4.

[0030] The outer end face of the second support slider 13 is adapted to the inner end face of the second support groove 11, which can effectively increase the stability of the installation of the protective pin sleeve 1 and the top pin sleeve 2, and prevent the protective pin sleeve 1 and the top pin sleeve 2 from sliding on the outer end face of the pin rod body 4 when the first mounting bolt 7 and the second mounting bolt 8 are not tightened, thus affecting the stability of its installation. There are multiple first support sliders 14, which are arranged in a ring array outside the center point of the protective pin sleeve 1 in the top view direction. The inner end face of the first support groove 15 is adapted to the outer end face of the first support slider 14.

[0031] The first support slide groove 15 and the second support slide groove 11 are provided in multiple quantities, and are arranged in a ring array outside the center point of the pin body 4 in the top view direction. The outer end face of the adapter block 10 is adapted to the inner end face of the anti-disengagement groove 12 by snap-fit. The second support slider 13 is provided in multiple quantities, and is arranged in a ring array outside the center point of the top pin sleeve 2 in the top view direction.

[0032] Working principle of this utility model:

[0033] When using this utility model, the worker installs the protective pin sleeve 1 on the outer end face of the pin rod body 4 and locks the first support slider 14 on the outer end face of the first support groove 15. Then, the worker can lock the protective pin sleeve 1 to the lower end of the pin rod body 4 with the first mounting bolt 6. Subsequently, the adapter block 10 will be locked inside the anti-disengagement groove 12. Then, the worker can install the top pin sleeve 2 on the upper side of the outer end face of the pin rod body 4 and lock the second support slider 13 inside the second support groove 11. Then, the worker can lock the top pin sleeve 2 and the pin rod body 4 to the outer end face of the pin rod body 4 with the second mounting bolt 7.

[0034] Finally, it should be noted that: the accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0035] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A type of irregularly shaped locating pin for assembled stamping dies, characterized in that, include: A protective pin sleeve (1) is provided with a pin body (4) on its inner end face. The upper end of the protective pin sleeve (1) is provided with an adapter block (10). The lower side of the inner end face of the protective pin sleeve (1) is provided with a first support slider (14). The lower side of the outer end face of the pin body (4) is provided with a first support groove (15). The upper end of the protective pin sleeve (1) is provided with a top pin sleeve (2). The lower side of the inner end face of the top pin sleeve (2) is provided with a second support slider (13), the outer side of the upper end of the pin body (4) is provided with a second support groove (11), the lower side of the outer end face of the pin body (4) is provided with an anti-disengagement groove (12), and the middle part of the upper end of the pin body (4) is provided with a second threaded mounting hole (8).

2. The irregularly shaped locating pin for assembled stamping dies according to claim 1, characterized in that: The lower side of the outer end face of the protective pin sleeve (1) is provided with a first concave nut groove (5), and the middle part of the lower end of the pin rod body (4) is provided with a first threaded mounting hole (9). The first threaded mounting hole (9) is provided with a first mounting bolt (6), and the top pin sleeve (2) has a second concave nut groove (3) in the middle of its upper end.

3. The irregularly shaped locating pin for assembled stamping dies according to claim 2, characterized in that: The first mounting bolt (6) passes through the inside of the first concave nut groove (5) and extends into the inside of the first threaded mounting hole (9); The outer end face of the first mounting bolt (6) is adapted to the inner end face of the first threaded mounting hole (9) by threaded engagement, and the second mounting bolt (7) is provided inside the second threaded mounting hole (8).

4. The irregularly shaped locating pin for assembled stamping dies according to claim 3, characterized in that: The second mounting bolt (7) passes through the middle of the second concave nut groove (3) and extends into the interior of the second threaded mounting hole (8); The outer end face of the second mounting bolt (7) is adapted to the inner end face of the second threaded mounting hole (8) by threaded engagement, and the outer end face of the second support slider (13) is adapted to the inner end face of the second support groove (11).

5. The irregularly shaped locating pin for assembled stamping dies according to claim 1, characterized in that: The outer end face of the main body of the pin (4) is adapted to the inner end face of the protective pin sleeve (1), and the inner end face of the top pin sleeve (2) is adapted to the outer end face of the main body of the pin (4). The number of the first support sliders (14) is multiple, and they are arranged in a ring array outside the center point of the protective pin sleeve (1) in the top view direction. The inner end face of the first support groove (15) is adapted to the outer end face of the first support slider (14).

6. The irregularly shaped locating pin for assembled stamping dies according to claim 1, characterized in that: The first support groove (15) and the second support groove (11) are provided in multiple quantities, and are arranged in a ring array outside the center point of the pin body (4) in the top view direction; The outer end face of the adapter block (10) is adapted to the inner end face of the anti-detachment groove (12) by snap-fit. The second support slider (13) is provided in multiple quantities and is arranged in a ring array outside the center point of the top pin sleeve (2) in the top view direction.

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