Multi-model helmet drilling fixing die

Abstract

The utility model relates to a multi-model helmet drilling fixing die which comprises a flat plate base, a helmet male die fixedly installed on the flat plate base, positioning sliding blocks arranged on the two sides of the helmet male die in a sliding mode and two pneumatic assemblies for synchronously driving the positioning sliding blocks to slide along an inner cavity of the helmet male die respectively. One end of the pneumatic component is connected with the inner side end part of the positioning slide block, and the other end is connected with the flat base; the outer wall of the positioning sliding block is in an outwards-protruding arc shape. The positioning sliding block can enter and exit from the sliding block cavity and can be detached and adjusted according to the drilling requirements of helmets of different models, after the positioning sliding block inwards contracts into the sliding block cavity, the contact area between the helmet and the male die body is small, the position of the bulletproof helmet can be adjusted, and the rod ends of the two air cylinders synchronously push the guide plate to move outwards. The two guide plates synchronously pull the push rods outwards, the corresponding square seat plates synchronously push the positioning sliding blocks to slide outwards, and the outer walls of the positioning sliding blocks extrude the inner side of the helmet, so that the helmet is fixed to the male die body and does not loosen.

Description

Technical Field

[0001] The utility model relates to a multi-model helmet drilling and fixing mold, belonging to the technical field of bulletproof helmet molds. Background Art

[0002] The suspension is a crucial component of a bulletproof helmet. Before assembling the suspension, the mounting screws must be drilled. Currently, the method involves manually marking the mounting holes on the helmet according to the suspension position, and then drilling the holes using a bench drill. This manual operation can result in uncertain positioning and angles, leading to a high rate of error and a high rate of rework. The bench drill is time-consuming and labor-intensive, resulting in low production efficiency. Another method involves creating a mold based on the helmet's inner diameter, creating a drilling die that matches the helmet's internal cavity. The helmet is then placed on the die and drilled using a dedicated drilling machine. However, due to the smooth surface of the drill die, the helmet can easily slip during drilling due to the impact of the drill bit, shifting the drill hole position. This requires frequent stops to adjust the helmet's position, which is time-consuming and labor-intensive. After drilling is complete, the smooth surface of the die prevents the helmet from contacting the die, leading to a "stuck" condition and difficulty in removing the helmet from the die.

[0003] In addition, during the production of bulletproof helmets, the drilling mold sometimes needs to be adjusted at any time due to changes in production tasks. Every time a new product or a different model of bulletproof helmet is replaced, the helmet drilling mold must be disassembled and reinstalled. Frequent mold replacement will waste a lot of production time and labor costs. In addition, different specifications of helmet models require casting to make corresponding molds, which has low mold utilization, increases production costs, and reduces work efficiency.

[0004] A Chinese invention patent with publication number CN210248539U discloses a helmet punching device, wherein a fixing unit is arranged on the fixing frame, including a lower die base and a holding member arranged above the lower die base. The lower die base is used to support the helmet, and the holding member can be extended and retracted in the up and down directions, and is used to cooperate with the lower die base to fix the helmet in the up and down directions.

[0005] Chinese invention patent publication number CN 208100544 U discloses a five-station, six-hole drilling machine for bulletproof helmets with automatic transmission. The helmet drilling positioning mold and ejector device in this solution are fixedly mounted in the center of the drilling table. The multifunctional adjustable base is mounted in a circular pattern on the drilling table, concentric with the center of the bulletproof helmet drilling positioning mold and ejector device. The helmet support molds in these two solutions cannot be adjusted for multiple helmet models. Utility Model Content

[0006] The problem to be solved by the utility model is to provide a multi-model helmet drilling and fixing die which can adapt to various models, ensure that the position of the helmet is firm when drilling holes and facilitate the removal of the helmet.

[0007] This utility model patent adopts the following technical solutions:

[0008] The utility model comprises a flat base, a helmet punch fixedly mounted on the flat base, positioning sliders slidably arranged on both sides of the helmet punch, and two groups of pneumatic components that respectively and synchronously drive the positioning sliders to slide along the inner cavity of the helmet punch; one end of the pneumatic component is connected to the inner end of the positioning slider, and the other end of the pneumatic component is connected to the flat base; the outer wall of the positioning slider is an outwardly convex arc; a gap is set between the helmet punch and the helmet, and each group of pneumatic components drives the corresponding positioning slider to synchronously squeeze the inner side of the helmet outward to fix the helmet.

[0009] The helmet punch of the utility model comprises a helmet support seat fixedly mounted on a flat base and a punch body fixedly mounted on the helmet support seat; slider cavities for accommodating positioning sliders are arranged on both sides of the punch body; a gap is arranged between the slider cavity and the positioning slider; when the positioning slider slides in the slider cavity, the outer side surface of the positioning slider enters and exits the slider cavity.

[0010] The utility model provides connecting seats on both sides of the inner end of the positioning slider, and a threaded hole is provided on the bottom surface of each connecting seat; and square through holes communicating with the corresponding slider cavities are respectively provided on the helmet support seat.

[0011] The utility model provides two push rod through holes communicated with the square through hole on both sides of the helmet support seat.

[0012] The pneumatic assembly of the utility model includes a fixed vertical plate fixedly mounted on a flat base, a cylinder fixedly mounted on the outside of the fixed vertical plate, a guide plate fixedly mounted on the end of the cylinder rod, a push rod fixedly mounted on the inner side of the guide plate and sliding along the gap through the hole of the push rod, and a square seat plate arranged in the square through hole and fixed to the inner end of the push rod. Gaps are set between the two sides of the square seat plate and the inner wall of the square through hole. The top surface of the square seat plate is fixedly connected to the bottom surface of the connecting seat. The square seat plate is driven to move in the square through hole by the push rod.

[0013] The utility model provides a groove on the inner side of the bottom of the fixed vertical plate, and the side plate of the groove is fixed to the outer side wall of the flat base.

[0014] The positive effects of the utility model patent are as follows: a gap is set between the slider cavity and the positioning slider of the utility model, and the positioning slider can move in and out of the slider cavity, so that it can be disassembled and adjusted according to the drilling requirements of different types of helmets. After the positioning slider is retracted inwardly into the slider cavity, the contact area between the helmet and the punch body is small, and the position of the bulletproof helmet can be adjusted. The rod ends of the two cylinders synchronously push the guide plates to move outward, and the two guide plates synchronously pull the push rods outward, and the corresponding square seat plates synchronously push the positioning sliders to slide outward. The outer wall of the positioning slider squeezes the inner side of the helmet, so that the helmet is fixed on the punch body without loosening, and then the power of the operating table is turned on to drill the helmet through the drill bit, ensuring that the helmet is firmly positioned and the drilling position is accurate when drilling; when removing the helmet, the positioning slider is driven inward by the pneumatic component, and the contact area between the helmet and the drilling mold is small, and the helmet is more convenient to take out. The utility model is simple to operate, has high drilling efficiency, is suitable for various types of bulletproof helmets, and has high utilization rate, thereby improving economic benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Attachment Figure 1 This is a schematic diagram of the structure of the utility model;

[0016] Attachment Figure 2 This is a schematic diagram of the top view of the structure of the utility model;

[0017] Attachment Figure 3 This is a schematic diagram of the helmet punch structure of the utility model;

[0018] Attachment Figure 4 This is a schematic diagram of the structure of the flat positioning slider of the utility model;

[0019] Attachment Figure 5 This is a schematic diagram of the structure of the pneumatic component of the utility model;

[0020] Attachment Figure 6 This is a schematic diagram of the bottom surface structure of the flat base of the utility model;

[0021] Attachment Figure 7 This is a schematic diagram of the fixed vertical plate structure of the utility model. DETAILED DESCRIPTION

[0022] As attached Figure 1 、 2 As shown, the utility model includes a flat base 1, a helmet punch 2 fixedly mounted on the flat base 1, positioning sliders 3 slidably arranged on both sides of the helmet punch 2, and two groups of pneumatic components that synchronously drive the positioning sliders 3 to slide along the inner cavity of the helmet punch 2; one end of the pneumatic component is connected to the inner end of the positioning slider 3, and the other end of the pneumatic component is connected to the flat base 1; the outer wall of the positioning slider 3 is an outwardly convex arc, which matches the inner wall of the helmet; a gap is set between the helmet punch 2 and the bulletproof helmet, which is convenient for placing the bulletproof helmet on the helmet punch 2, and each group of pneumatic components drives the corresponding positioning slider 3 to synchronously squeeze the inner side of the helmet outward to fix the helmet.

[0023] As attached Figure 3 、 4 As shown, the helmet punch 2 of the present invention includes a helmet support seat 21 fixedly mounted on the flat base 1 and a punch body 22 fixedly mounted on the helmet support seat 21; slider cavities 23 for accommodating the positioning slider 3 are provided on both sides of the punch body 22; a gap is set between the slider cavity 23 and the positioning slider 3; when the positioning slider 3 slides in the slider cavity 23, the outer side surface of the positioning slider 3 enters and exits the slider cavity 23; connecting seats 31 are respectively provided on both sides of the inner end of the positioning slider 3, and a threaded hole 32 is provided on the bottom surface of each connecting seat 31, and the connecting seat 31 is connected to the pneumatic component by a bolt screwed into the threaded hole 32; square through holes 24 communicating with the corresponding slider cavities 23 are respectively provided on the helmet support seat 21; two push rod through holes 25 communicating with the square through holes 24 are respectively provided on both sides of the helmet support seat 21;

[0024] As attached Figure 5 、 6 As shown in Figures 7 and 8, the pneumatic assembly of the present invention includes a fixed vertical plate 41 fixedly mounted on the flat base 1, a cylinder 42 fixedly mounted on the outside of the fixed vertical plate 41, a guide plate 43 fixedly mounted on the rod end of the cylinder 42, a push rod 44 fixedly mounted on the inner side of the guide plate 43 and sliding along the gap of the push rod through the hole 25, and a square seat plate 45 fixed to the inner end of the push rod 44 with a gap arranged in the square through hole 24. Specifically, a groove 46 is provided on the inner side of the bottom of the fixed vertical plate 41, and the side plate of the groove 46 is fixed to the outer wall of the flat base 1; a through hole corresponding to the threaded hole 32 is provided on the top surface of the square seat plate 45, and bolts are provided in the through hole and the threaded hole 32 to fix the square seat plate 45 to the connecting seat 31.

[0025] Before work, according to the requirements of the helmet drilling process, adjust or replace the positioning slider 3 that meets the requirements and assemble it on the helmet punch 2. During work, the control cylinder 42 is pressurized, and the rod ends of the two cylinders 42 pull the corresponding guide plates 43 inward synchronously. The two guide plates 43 synchronously drive the push rod 44 to pull the positioning slider 3 inward through the square seat plate 45 to retract the outer side of the positioning slider 3 into the slider cavity 23. The cylinder 42 stops running and the bulletproof helmet to be drilled is placed on the punch body 22. Since the side wall of the positioning slider 3 is retracted inward into the slider cavity 23, the contact area between the inner side of the bulletproof helmet and the punch body 22 is small, and the position of the helmet is easy to adjust. After the bulletproof helmet is placed on the punch body 22, the control cylinder 42 is depressurized, and the rod ends of the two cylinders 42 synchronously push the guide plates 43 outward. The two guide plates 43 synchronously pull the push rod 44 to slide outward, and the corresponding square seat plate 45 synchronously pushes the positioning slider 3 to slide outward. The outer wall of the positioning slider 3 squeezes the inner side of the helmet, so that the helmet is fixed on the punch body 22 without loosening, and then the operating table power is turned on to start drilling the helmet. After the helmet is drilled, the operating table steps on the foot switch, and the rod end of the cylinder 42 drives the guide plate 43 to retract inward, and the push rod 44 pulls the positioning slider 3 inward through the square seat plate 45 to retract into the slider cavity 23. Because the drilling position is at the lower edge of the helmet, there is a large gap between the lower edge of the helmet and the drilling mold, which makes it convenient to take out the helmet. At this point, a helmet drilling operation is completed.

[0026] The utility model can be adapted to the drilling of bulletproof helmets of various types, has high utilization rate, is easy to operate, and improves work efficiency.

Claims

1. A multi-model helmet drilling and fixing mold, characterized in that: It comprises a flat base (1), a helmet punch (2) fixedly mounted on the flat base (1), positioning sliders (3) slidably arranged on both sides of the helmet punch (2), and two groups of pneumatic components that respectively and synchronously drive the positioning sliders (3) to slide along the inner cavity of the helmet punch (2); one end of the pneumatic component is connected to the inner end of the positioning slider (3), and the other end of the pneumatic component is connected to the flat base (1); the outer wall of the positioning slider (3) is an outwardly convex arc; A gap is set between the helmet convex mold (2) and the helmet, and each group of pneumatic components drives the corresponding positioning slider (3) to synchronously press the inner side of the helmet outward to fix the helmet.

2. A multi-model helmet drilling and fixing mold according to claim 1, characterized in that: The helmet convex mold (2) comprises a helmet support seat (21) fixedly mounted on the flat base (1) and a convex mold body (22) fixedly mounted on the helmet support seat (21); Slider cavities (23) for accommodating the positioning slider (3) are provided on both sides of the male mold body (22); a gap is provided between the slider cavity (23) and the positioning slider (3); when the positioning slider (3) slides in the slider cavity (23), the outer side surface of the positioning slider (3) enters and exits the slider cavity (23).

3. A multi-model helmet drilling and fixing mold according to claim 2, characterized in that: Connecting seats (31) are respectively provided on both sides of the inner end of the positioning slider (3), and a threaded hole (32) is provided on the bottom surface of each connecting seat (31); Square through holes (24) communicating with corresponding slider cavities (23) are respectively provided on the helmet support seat (21).

4. A multi-model helmet drilling and fixing mold according to claim 3, characterized in that: Two push rod through holes (25) communicating with the square through hole (24) are respectively provided on both sides of the helmet support seat (21).

5. A multi-model helmet drilling and fixing mold according to claim 4, characterized in that: The pneumatic assembly comprises a fixed vertical plate (41) fixedly mounted on a flat base (1), a cylinder (42) fixedly mounted on the outside of the fixed vertical plate (41), a guide plate (43) fixedly mounted on the rod end of the cylinder (42), a push rod (44) fixedly mounted on the inner side of the guide plate (43) and sliding along the gap of the push rod through the hole (25), and a square seat plate (45) arranged in the square through hole (24) and fixed to the inner end of the push rod (44), the two sides of the square seat plate (45) are provided with gaps with the inner wall of the square through hole (24), the top surface of the square seat plate (45) is fixedly connected to the bottom surface of the connecting seat (31), and the square seat plate (45) is driven by the push rod (44) to move in the square through hole (24).

6. A multi-model helmet drilling and fixing mold according to claim 5, characterized in that: A groove (46) is provided on the inner side of the bottom of the fixed vertical plate (41), and the side plate of the groove (46) is fixed to the outer side wall of the flat base (1).

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