Cold heading die for welding bolt

Abstract

The utility model discloses a cold heading die for welding bolts, which belongs to the technical field of cold heading dies and comprises a mounting seat, a first mounting shell connected to the top of the mounting seat, a die body connected to the inside of the first mounting shell, a top hole formed in the mounting seat, an ejector pin connected to the inside of the top hole, and a connecting plate connected to the bottom end of the ejector pin. The bottom of the connecting plate is connected with a push handle, the side surface of the ejector pin is sleeved with a first spring, the top end of the first spring is connected to the bottom of the mounting base, the bottom end of the first spring is connected to the top of the connecting plate, limiting strips are symmetrically connected into the first mounting shell, and first clamping grooves are formed in the two sides of the mold body. Through cooperative use of the devices, after the bolt is extruded and formed in the inner cavity of the mold body, a worker can directly push the connecting plate upwards through the push handle, so that the ejector pin can eject the formed bolt out of the inner cavity of the mold body, and the convenience of collecting the bolt is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cold heading dies, in particular to a cold heading die for welding bolts. Background Art

[0002] Cold heading dies are special tools used in the cold heading forming process, mainly used to produce fasteners such as bolts, screws, and rivets.

[0003] Upon investigation, a Chinese utility model patent discloses a cold heading mold that is easy to replace (publication number: CN220295770U), which includes a mounting seat, the outer wall of which is snap-connected to the mold body, a connecting groove is provided at the connection portion between the outer wall of the mounting seat and the mold body, and the inner wall of the mounting seat is fixedly connected to a spring that fits the outer wall of the mold body.

[0004] In the above patent, the mold body is installed on the mounting seat. When the mold body is disassembled, the spring can automatically push the mold body out, thereby improving the convenience of disassembling and taking the mold body. However, in actual use, since the bolts are extruded and formed in the mold, the formed bolts are easy to fit tightly together with the inner cavity of the mold, which makes it inconvenient for the staff to take the material.

[0005] Therefore, the utility model provides a cold heading die for welding bolts to solve the above problems. Utility Model Content

[0006] The utility model provides a cold heading die for welding bolts, aiming to solve the problems raised in the background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a cold heading mold for welding bolts, comprising a mounting seat, the top of the mounting seat is connected to a first mounting shell, the interior of the first mounting shell is connected to the mold body, a top hole is opened on the mounting seat, the interior of the top hole is connected to a ejector pin, the bottom end of the ejector pin is connected to a connecting plate, the bottom of the connecting plate is connected to a push handle, the side surface of the ejector pin is sleeved with a first spring, the top end of the first spring is connected to the bottom of the mounting seat, and the bottom end of the first spring is connected to the top of the connecting plate.

[0008] Furthermore, in the above-mentioned buffer-type steel structure stair guardrail, the interior of the first installation shell is symmetrically connected to the limit strip, and both sides of the mold body are provided with a first slot, and the limit strip is clipped into the interior of the first slot.

[0009] Furthermore, in the above-mentioned buffer-type steel structure stair guardrail, the bottom of the mounting seat is symmetrically connected to a limit rod, and the limit rod passes through the connecting plate.

[0010] Furthermore, in the above-mentioned buffer-type steel structure stair guardrail, the bottom of the mounting seat is connected to a side plate, one side of the side plate is connected to a second mounting shell, the interior of the second mounting shell is connected to a second spring, the top of the second spring is connected to a clamping block, and the bottom of the mold body is provided with a second clamping slot adapted to the clamping block, and the clamping block passes through the mounting seat and is clamped inside the second clamping slot.

[0011] Furthermore, in the above-mentioned buffer-type steel structure stair guardrail, a handle is connected to one side of the block, and the handle passes through the side plate, and a strip groove for the handle to move is opened on the side plate.

[0012] Furthermore, in the above-mentioned buffer-type steel structure stair guardrail, a slide groove is provided on the first mounting shell, a push plate is connected to the inside of the slide groove, one side of the push plate is connected to one side of the mold body, and both sides of the first mounting shell are connected to the third mounting shell, and the inside of the two third mounting shells are connected to the third spring, and one end of the two third springs is connected to one side of the push plate.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] By setting the ejector hole, ejector pin, connecting plate, push handle and first spring, after the bolt is extruded and formed in the inner cavity of the mold body, the staff can directly push the connecting plate upward through the push handle, so that the ejector pin can eject the formed bolt from the inner cavity of the mold body, thereby improving the convenience of collecting the bolt. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a structural diagram of a cold heading die for welding bolts;

[0016] Figure 2 This is a schematic diagram of the installation of a die body in a cold heading die for welding bolts;

[0017] Figure 3 This is a schematic diagram of the installation of a clamping block in a cold heading die for welding bolts;

[0018] Figure 4 This is a schematic diagram of the structure of an ejector pin in a cold heading die for welding bolts;

[0019] Figure 5 A cross-sectional view of a mounting seat in a cold heading die for welding bolts;

[0020] Figure 6 A cross-sectional view of a second mounting shell in a cold heading die for welding bolts;

[0021] Figure 7 A cross-sectional view of the first mounting shell in a cold heading die for welding bolts.

[0022] In the picture:

[0023] 1. Mounting seat; 2. First mounting shell; 3. Mold body; 4. First slot; 5. Limiting strip; 6. Ejector hole; 7. Ejector pin; 8. Connecting plate; 9. Push handle; 10. First spring; 11. Limiting rod; 12. Second slot; 13. Second mounting shell; 14. Block; 15. Pull handle; 16. Second spring; 17. Side plate; 18. Third mounting shell; 19. Third spring; 20. Push plate; 21. Slide groove. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] The utility model provides a cold heading die for welding bolts, such as Figure 1 、 Figure 3 、 Figure 4 and Figure 5 As shown, it includes a horizontally arranged mounting base 1, the top of the mounting base 1 is connected to a first mounting shell 2, the interior of the first mounting shell 2 is connected to a mold body 3, a top hole 6 is opened on the mounting base 1, the interior of the top hole 6 is connected to an ejector pin 7, the bottom end of the ejector pin 7 is connected to a connecting plate 8, the bottom of the connecting plate 8 is connected to a push handle 9, the side surface of the ejector pin 7 is sleeved with a first spring 10, the top end of the first spring 10 is connected to the bottom of the mounting base 1, and the bottom end of the first spring 10 is connected to the top of the connecting plate 8.

[0026] The interior of the first mounting shell 2 is symmetrically connected to the limiting bars 5 . Both sides of the mold body 3 are provided with first slots 4 . The limiting bars 5 are snapped into the interior of the first slots 4 .

[0027] The mold body 3 can be slidably installed in the first mounting shell 2 on the mounting base 1 through the limiting strip 5 and the first card slot 4 opened by itself. During actual use, the staff can easily replace different mold bodies 3 according to specific production needs. After the mold body 3 is installed, its bottom will be attached to the top of the mounting base 1, and its inner cavity used to extrude the production bolts is also just above the top hole 6.

[0028] After the bolt is extruded into the inner cavity of the mold body 3, the staff can hold the push handle 9 and push the connecting plate 8 upward through the push handle 9. During the upward movement of the connecting plate 8, the ejector pin 7 can be driven to move, so that the ejector pin 7 is inserted into the inner cavity of the mold body 3, thereby ejecting the formed bolt from the inner cavity of the mold body 3 so that the staff can collect the bolt.

[0029] When the staff pushes the connecting plate 8 and the ejector pin 7 upward by using the push handle 9 to eject the bolt from the inner cavity of the mold body 3, the ejector pin 7 moves, so the first spring 10 sleeved on the ejector pin 7 will also be compressed. When the staff removes the bolt from the mold body 3, the staff can directly loosen the push handle 9. At this time, the first spring 10 can instantly release the pressure and drive the connecting plate 8, push handle 9 and ejector pin 7 to reset, so that the ejector pin 7 shrinks back into the ejection hole 6, thereby preparing for the next use of the mold in advance.

[0030] For example, in order to improve the stability of the connecting plate 8 when it moves, Figure 1 、 Figure 3 、 Figure 4 and Figure 5 As shown, a limiting rod 11 is symmetrically connected to the bottom of the mounting seat 1 , and the limiting rod 11 passes through the connecting plate 8 .

[0031] After the bolt is extruded into the inner cavity of the mold body 3, the staff needs to push the connecting plate 8 upward through the push handle 9 so that the ejector pin 7 can push out the bolt in the inner cavity of the mold body 3. Since the limiting rod 11 passes through the connecting plate 8, the connecting plate 8 can slide on the limiting rod 11 when moving. The setting of the two limiting rods 11 can limit the connecting plate 8, thereby improving the stability of the connecting plate 8 when moving.

[0032] For example, in order to improve the stability of the mold body 3 when it is installed in the first installation shell 2, as shown in FIG. Figure 1 、 Figure 3 and Figure 6 As shown, the bottom of the mounting seat 1 is connected to a side plate 17, one side of the side plate 17 is connected to a second mounting shell 13, the interior of the second mounting shell 13 is connected to a second spring 16, the top of the second spring 16 is connected to a clamping block 14, and the bottom of the mold body 3 is provided with a second clamping groove 12 adapted to the clamping block 14, and the clamping block 14 passes through the mounting seat 1 and is clamped in the interior of the second clamping groove 12.

[0033] A pull handle 15 is connected to one side of the clamping block 14 . The pull handle 15 passes through a side plate 17 . A strip groove is formed on the side plate 17 for the pull handle 15 to move.

[0034] When the mold main body 3 is installed inside the first mounting shell 2, the first card slot 4 on the mold main body 3 needs to be aligned with the limit bar 5 in the first mounting shell 2, and then the mold main body 3 can be directly inserted into the interior of the first mounting shell 2. During the movement of the mold main body 3, its bottom will contact the curved surface of the card block 14 and squeeze the card block 14, causing the card block 14 to shrink toward the interior of the second mounting shell 13. During the contraction of the card block 14, the second spring 16 will be squeezed accordingly. When the mold main body 3 completely enters the interior of the first mounting shell 2, the second card slot 12 at the bottom of the mold main body 3 also just comes to the top of the card block 14. At this time, the second spring 16 that loses the extrusion force can instantly release the pressure and push the card block 14 to move upward, so that the card block 14 can be stably inserted into the second card slot 12, thereby limiting the movement of the mold main body 3 in the horizontal direction, and cooperating with the upper limit bar 5 to limit the vertical direction of the mold main body 3, so that the mold main body 3 can be stably installed inside the first mounting shell 2.

[0035] When removing the mold body 3 from the interior of the first mounting shell 2, it is necessary to pull downward the handle 15 connected to the clamping block 14. The handle 15 can drive the clamping block 14 to move downward, so that the clamping block 14 is moved out of the second clamping groove 12, thereby releasing the restriction on the horizontal movement of the mold body 3. At this time, the mold body 3 can be removed from the interior of the first mounting shell 2 by sliding.

[0036] For example, in order to facilitate the staff to take out the mold body 3 from the first installation shell 2, as shown in FIG. Figure 1 、 Figure 2 、 Figure 5 and Figure 7 As shown, a slide groove 21 is provided on the first mounting shell 2, and a push plate 20 is connected to the inside of the slide groove 21. One side of the push plate 20 is connected to one side of the mold body 3. Both sides of the first mounting shell 2 are connected to the third mounting shell 18. The insides of the two third mounting shells 18 are connected to third springs 19, and one end of the two third springs 19 is connected to one side of the push plate 20.

[0037] When the mold main body 3 is installed inside the first mounting shell 2, it is necessary to align the first card slot 4 on the mold main body 3 with the limit bar 5 inside the first mounting shell 2, and then the mold main body 3 can be directly inserted into the inside of the first mounting shell 2. During the movement of the mold main body 3, in addition to the bottom contacting the arc surface of the card block 14, its side will also contact the push plate 20 and squeeze the push plate 20, so that the push plate 20 moves inside the slide groove 21. During the movement of the push plate 20, the third spring 19 will be stretched. After the mold main body 3 is fixed inside the first mounting shell 2, the push plate 20 and the third spring 19 will always maintain the current state.

[0038] When taking the mold body 3 out of the first mounting shell 2, it is necessary to pull down the handle 15 connected to the block 14. The handle 15 can drive the block 14 to move downward, so that the block 14 is moved out of the second slot 12, thereby releasing the restriction on the horizontal movement of the mold body 3. At the same time, the third spring 19 can drive the push plate 20 to reset. During the reset process of the push plate 20, the mold body 3 can be pushed to move, so that the second slot 12 at the bottom of the mold body 3 is misaligned with the block 14, avoiding the block 14 affecting the movement of the mold body 3, thereby making it convenient for the staff to take the mold body 3 out of the first mounting shell 2.

[0039] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A cold heading die for welding bolts, comprising a mounting seat (1), characterized in that: The top of the mounting seat (1) is connected to a first mounting shell (2), the interior of the first mounting shell (2) is connected to a mold body (3), a top hole (6) is opened on the mounting seat (1), the interior of the top hole (6) is connected to an ejector pin (7), the bottom end of the ejector pin (7) is connected to a connecting plate (8), the bottom of the connecting plate (8) is connected to a push handle (9), the side surface of the ejector pin (7) is sleeved with a first spring (10), the top end of the first spring (10) is connected to the bottom of the mounting seat (1), and the bottom end of the first spring (10) is connected to the top of the connecting plate (8).

2. The cold heading die for welding bolts according to claim 1, characterized in that: The interior of the first mounting shell (2) is symmetrically connected to a limiting strip (5), and first slots (4) are provided on both sides of the mold body (3), and the limiting strip (5) is snapped into the interior of the first slots (4).

3. The cold heading die for welding bolts according to claim 1, characterized in that: The bottom of the mounting seat (1) is symmetrically connected to a limiting rod (11), and the limiting rod (11) passes through the connecting plate (8).

4. The cold heading die for welding bolts according to claim 1, characterized in that: The bottom of the mounting seat (1) is connected to a side plate (17), one side of the side plate (17) is connected to a second mounting shell (13), the interior of the second mounting shell (13) is connected to a second spring (16), the top end of the second spring (16) is connected to a clamping block (14), and the bottom of the mold body (3) is provided with a second clamping groove (12) adapted to the clamping block (14), and the clamping block (14) passes through the mounting seat (1) and is clamped in the interior of the second clamping groove (12).

5. The cold heading die for welding bolts according to claim 4, characterized in that: A pull handle (15) is connected to one side of the clamping block (14), and the pull handle (15) passes through the side plate (17). The side plate (17) is provided with a strip groove for the pull handle (15) to move.

6. The cold heading die for welding bolts according to claim 1, characterized in that: The first mounting shell (2) is provided with a slide groove (21), the interior of the slide groove (21) is connected to a push plate (20), one side of the push plate (20) is connected to one side of the mold body (3), both sides of the first mounting shell (2) are connected to the third mounting shell (18), the interiors of the two third mounting shells (18) are connected to third springs (19), and one end of the two third springs (19) is connected to one side of the push plate (20).

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