An assembly mold for adjusting the length of a riveted spring pin

Abstract

The present invention discloses an assembly mold for adjusting the length of a riveted spring pin, which includes a lower mold, a spring pin sleeve, a middle mold, an upper mold, a vacuum chuck, a thimble fixing mold and a spring pin. A channel is provided on the lower mold, a stamping fixing hole is provided on the middle mold, a through hole for fixing the spring pin movable shaft is provided on the upper mold. One end of the vacuum chuck is connected with an air extraction pipe head. A thimble fixing hole is provided on the thimble fixing mold. The spring pin sleeve is placed in the channel, and the spring pin sleeve penetrates through the stamping fixing through hole of the middle mold. For this assembly mold for adjusting the length of the riveted spring pin, a thimble with adjustable length is designed in the mold. The mold adopts a through hole design. During use, according to the length of different products, the thimble in the mold is adjusted. The spring pin movable shaft is combined by means of vacuum suction, and the height of the spring used in the spring pin sleeve is flush with the height of the sleeve.

Description

Technical Field

[0001] The present invention relates to the technical field of assembly molds, and particularly to an assembly mold capable of adjusting the length of a riveted compression spring pin. Background Art

[0002] At present, there is no ejector pin for adjusting the mold inside the traditional riveted compression spring pin mold on the market, and its versatility is poor. The internal design of the mold is not a through hole, and the vacuum suction combination method cannot be used for the spring pin moving shaft. Therefore, when designing the spring pin structure, the spring height cannot be designed to the most suitable height, the preloading value is too low, and the contact resistance of the spring pin is large. This seriously reduces the best electrical conductivity of the spring pin. In view of the deficiencies of the prior art, an assembly mold capable of adjusting the length of a riveted compression spring pin is provided, with a simple structure and easy operation. The spring pin moving shaft is combined by means of vacuum suction to solve the difficulty of combination when the spring is too long, and the most reliable spring pin riveting process can be effectively realized. For this reason, we propose an assembly mold capable of adjusting the length of a riveted compression spring pin. Summary of the Invention

[0003] The purpose of the present invention is to provide an assembly mold capable of adjusting the length of a riveted compression spring pin to solve the problems raised in the above background art.

[0004] To achieve the above purpose, the present invention provides the following technical solution: an assembly mold capable of adjusting the length of a riveted compression spring pin, including a lower mold, a spring pin sleeve, a middle mold, an upper mold, a vacuum suction cup, an ejector pin fixing mold, and a spring pin. A channel is opened on the lower mold, a stamping fixing hole is opened on the middle mold, a through hole for fixing the spring pin moving shaft is opened on the upper mold. One end of the vacuum suction cup is connected with an air extraction pipe head. An ejector pin fixing hole is opened on the ejector pin fixing mold. The spring pin sleeve is placed in the channel and penetrates through the stamping fixing through hole of the middle mold. A spring pin moving shaft is arranged in the through hole for fixing the spring pin moving shaft. An ejector pin penetrates through the ejector pin fixing mold. The spring pin includes a spring pin moving shaft and a spring pin sleeve.

[0005] Preferably, one end of the air extraction pipe head is connected with a vacuum machine.

[0006] Compared with the prior art, the beneficial effects of the present invention are as follows: for the assembly mold capable of adjusting the length of a riveted compression spring pin, an ejector pin with adjustable length is designed inside the mold, and a through hole design is adopted inside the mold. During use, according to the length of different products, the ejector pin inside the mold is adjusted. The spring pin moving shaft is combined by means of vacuum suction. The height of the spring used inside the spring pin sleeve is flush with the height of the sleeve. This riveting method has strong versatility of the mold, a simple combination method for the spring pin moving shaft, the height of the spring used inside the spring pin sleeve is designed to the most suitable height, the preloading value reaches the maximum, and the contact resistance is reduced. The mold has strong versatility, a simple structure, cost savings, high assembly efficiency, and the electrical performance of the spring pin reaches the best state. Brief Description of the Drawings

[0007] Figure 1 Schematic diagram of the explosion structure of the present invention;

[0008] Figure 2 Schematic diagram of the lower die structure of the present invention;

[0009] Figure 3 Schematic diagram of the middle die structure of the present invention;

[0010] Figure 4 Schematic diagram of the upper die structure of the present invention;

[0011] Figure 5 Schematic diagram of the vacuum chuck structure of the present invention;

[0012] Figure 6 Schematic diagram of the ejector pin fixed die structure of the present invention;

[0013] Figure 7 Schematic diagram of the ejector pin structure of the present invention;

[0014] Figure 8 Schematic diagram of the spring pin structure of the present invention;

[0015] Figure 9 Schematic diagram of the spring pin sleeve structure of the present invention;

[0016] Figure 10 Schematic diagram of the mold separation state structure of the present invention;

[0017] Figure 11 Schematic diagram of the mold closing state structure of the present invention.

[0018] In the figure: 1. Lower die, 2. Spring pin sleeve, 3. Middle die, 4. Spring pin movable shaft, 5. Upper die, 6. Vacuum chuck, 7. Ejector pin fixed die, 8. Ejector pin, 9. Channel, 10. Stamping fixed through hole, 11. Spring pin movable shaft fixed through hole, 12. Air extraction pipe head, 13. Ejector pin fixed hole, 14. Spring pin. Detailed implementation manners

[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without making creative efforts shall fall within the protection scope of the present invention.

[0020] Please refer to Figures 1-11, the present invention provides a technical solution: an assembly mold for adjusting the length of a riveted spring pin, including a lower mold 1, a spring pin sleeve 2, a middle mold 3, a spring pin movable shaft 4, an upper mold 5, a vacuum chuck 6, a thimble fixing mold 7, a thimble 8, a channel 9, a stamping fixing through hole 10, a spring pin movable shaft fixing through hole 11, an air extraction pipe head 12, a thimble fixing hole 13, a spring pin 14 and a spring pin sleeve. A channel 9 is opened on the lower mold 1, a stamping fixing hole 10 is opened on the middle mold 3, a spring pin movable shaft fixing through hole 11 is opened on the upper mold 5. One end of the vacuum chuck 6 is connected with an air extraction pipe head 12. A thimble fixing hole 13 is opened on the thimble fixing mold 7. The spring pin sleeve 2 is placed in the channel 9, and the spring pin sleeve 2 penetrates through the stamping fixing through hole 10 of the middle mold 3. A spring pin movable shaft 4 is arranged in the spring pin movable shaft fixing through hole 11. A thimble 8 penetrates through the thimble fixing mold 7. The spring pin 14 includes a spring pin movable shaft 4 and a spring pin sleeve;

[0021] One end of the air extraction pipe head 12 is connected with a vacuum machine. The vacuum machine is connected with the air extraction pipe head 12. When the vacuum machine starts to extract air, the vacuum chuck 6 generates suction force.

[0022] Working principle: For this kind of assembly mold for adjusting the length of a riveted spring pin, first, the product spring pin sleeve 2 is placed in the channel 9 of the lower mold 1. The middle mold 3 and the lower mold 1 are closed. The spring pin sleeve 2 penetrates through the stamping fixing through hole 10 of the middle mold 3, preparing for the riveting work of the thimble 8 below to fix the spring pin 14. The vacuum chuck 6 and the upper mold 5 are hermetically closed. The vacuum machine is connected with the air extraction pipe head 12. When the vacuum machine starts to extract air, the vacuum chuck 6 generates suction force. After sucking the spring pin movable shaft 4 into the spring pin movable shaft fixing through hole 11, the whole is closed with the middle mold 3, so that the spring pin movable shaft 4 penetrates through the stamping fixing through hole 10 of the middle mold 3. At this time, the vacuum chuck 6 is separated from the upper mold 5. The thimble fixing mold 7 and the upper mold 5 are closed. The thimble 8 is inserted into the spring pin movable shaft fixing through hole 11 to hold the spring pin movable shaft 4. Then the machine pushes the thimble fixing mold 7 downward, driving the thimble 8 to push the spring pin movable shaft 4 into the spring pin shaft sleeve 2, completing the combination work of the spring pin.

[0023] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An assembly die for adjusting the length of a riveted compression spring pin, comprising a lower die (1), a spring pin sleeve (2), a middle die (3), an upper die (5), a vacuum chuck (6), a thimble fixing die (7) and a spring pin (14), characterized in that: A channel (9) is provided on the lower die (1), a stamping fixing through hole (10) is provided on the middle die (3), a pogo pin movable shaft fixing through hole (11) is provided on the upper die (5), one end of the vacuum chuck (6) is connected with an air suction pipe head (12), a ejector pin fixing hole (13) is provided on the ejector pin fixing die (7), the pogo pin sleeve (2) is placed in the channel (9), and the pogo pin sleeve (2) penetrates through the stamping fixing through hole (10) of the middle die (3). A pogo pin movable shaft (4) is arranged in the pogo pin movable shaft fixing through hole (11). An ejector pin (8) penetrates through the ejector pin fixing die (7). The pogo pin (14) comprises a pogo pin movable shaft (4) and a pogo pin sleeve (2). The length of the ejector pin (8) is adjustable. The vacuum chuck is hermetically combined with the upper die. The vacuum chuck generates suction force to suck the pogo pin movable shaft into the pogo pin movable shaft fixing through hole, and then the whole is combined with the middle die, so that the pogo pin movable shaft penetrates through the stamping fixing through hole of the middle die. The vacuum chuck is separated from the upper die. The ejector pin fixing die is combined with the upper die. The ejector pin is inserted into the pogo pin movable shaft fixing through hole to hold the pogo pin movable shaft. The ejector pin fixing die is pressed down to drive the ejector pin to push the pogo pin movable shaft into the pogo pin sleeve, completing the combination work of the pogo pin.

2. The assembly die for adjusting the length of a riveted compression spring pin according to claim 1, characterized in that: One end of the air suction pipe head (12) is connected with a vacuum machine.

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