Cold heading dies for bolts

Abstract

This utility model discloses a cold heading mold for bolts, comprising: a plurality of cold heading molds for producing bolts, forming a bolt production line; a station moving device, comprising: a first column and a second column rotatably connected to a workbench; an upper sprocket assembly, comprising a first sprocket and a second sprocket respectively fixed to the upper ends of the first column and the second column, and a first chain sleeved on the first sprocket and the second sprocket; a lower sprocket assembly, comprising a third sprocket and a fourth sprocket respectively fixed to the upper ends of the first column and the second column, and a second chain sleeved on the third sprocket and the fourth sprocket; a slide rail fixed between corresponding vertical links of the first chain and the second chain, a telescopic cylinder fixed on the slider of the slide rail, and a gripping cylinder fixed at the output end of the telescopic cylinder; and a lifting block with a lifting surface, along which the slider moves. This utility model has a simple structure and can achieve bolt lifting and movement according to different work stations.

Description

Technical Field

[0001] This utility model belongs to the field of cold heading technology, specifically relating to a cold heading mold for bolts. Background Technology

[0002] Cold heading is a cold stamping process that uses a die to apply pressure to metal at room temperature to achieve plastic deformation. It is mainly used for forming the heads of fasteners such as screws, bolts, and rivets. In bolt production, multiple dies form an assembly line. To produce bolts of different specifications, the ejection height of the bolts at each station varies, resulting in different heights at which the bolts are transferred to the next station. Therefore, it is crucial to obtain a cold heading die for bolts that can overcome these shortcomings. Utility Model Content

[0003] To solve at least one of the above-mentioned technical problems, this utility model provides a cold heading die for bolts, comprising:

[0004] Several cold heading dies are used to produce bolts, forming a bolt production line;

[0005] Workstation moving device, including:

[0006] Rotate the first and second columns connected to the worktable;

[0007] The upper sprocket assembly includes a first sprocket and a second sprocket fixed to the upper ends of the first column and the second column respectively, and a first chain sleeved on the first sprocket and the second sprocket;

[0008] The lower sprocket assembly includes a third sprocket and a fourth sprocket, which are respectively fixed to the upper ends of the first column and the second column, and a second chain sleeved on the third sprocket and the fourth sprocket;

[0009] A slide rail is fixed between the corresponding vertical links of the first chain and the second chain. A telescopic cylinder is fixed on the slider of the slide rail, and a gripping cylinder is fixed at the output end of the telescopic cylinder.

[0010] The lifting block has a lifting surface, and the slider moves along the lifting surface.

[0011] The telescopic cylinder is fixed to the horizontal outer end of the slider.

[0012] The slider is rotatably connected to a roller, and the outer wall of the roller contacts the lifting surface to reduce friction.

[0013] The distance between two adjacent telescopic cylinders is the same as the distance between two adjacent cold heading dies.

[0014] A drive motor is fixed on the workbench, a fifth sprocket is fixed at the output end of the drive motor, a sixth sprocket is fixed on the second column, and a third chain is installed between the fifth sprocket and the sixth sprocket.

[0015] Compared with the prior art, the advantages of this utility model are: the utility model has a simple structure and can realize the lifting and movement of bolts according to different work positions. That is, the chain stops moving at a reasonable position, the gripping cylinder opens first, then the telescopic cylinder extends, then the gripping cylinder retracts to grab the bolt, then the chain moves, the slider rises or falls along the lifting surface, then the gripping cylinder opens, the bolt enters the mold of the next work position, and then the telescopic cylinder retracts. Attached Figure Description

[0016] Figure 1 This is a top view of the present invention;

[0017] Figure 2 This is the front view of the present utility model;

[0018] Figure 3 This is a side view of the present invention;

[0019] Figure 4 This is a schematic diagram of the lifting surface of this utility model;

[0020] Figure 5 A partial perspective view of the chain mounting rail of this utility model;

[0021] Figure label:

[0022] 1 Cold heading mold; 2 First column; 3 Second column; 4 First sprocket; 5 Second sprocket; 6 First chain; 7 Second chain; 8 Slide rail; 9 Slider; 10 Telescopic cylinder; 11 Gripping cylinder; 12 Lifting block; 13 Lifting surface; 14 Roller; 15 Drive motor; 16 Fifth sprocket; 17 Sixth sprocket; 18 Third chain; 19 Vertical connecting plate. Detailed Implementation

[0023] To enable those skilled in the art to better understand this utility model and to more clearly define the scope of protection claimed by this utility model, the present utility model is described in detail below with reference to certain specific embodiments. It should be noted that the following are only some specific embodiments of the present utility model concept, and are only a part of the embodiments of this utility model. The specific and direct description of related structures is only for the convenience of understanding this utility model, and the specific features do not necessarily or directly limit the scope of implementation of this utility model.

[0024] Referring to the accompanying drawings, this utility model adopts the following technical solution: This utility model provides a cold heading die 1 for bolts, comprising:

[0025] Several cold heading dies 1 are used to produce bolts, forming a bolt production line;

[0026] Workstation moving device, including:

[0027] Rotate the first column 2 and the second column 3 connected to the workbench;

[0028] The upper sprocket assembly includes a first sprocket 4 and a second sprocket 5 fixed to the upper ends of the first column 2 and the second column 3 respectively, and a first chain 6 sleeved on the first sprocket 4 and the second sprocket 5;

[0029] The lower sprocket assembly includes a third sprocket and a fourth sprocket, which are respectively fixed to the upper ends of the first column 2 and the second column 3, and a second chain 7 is sleeved on the third sprocket and the fourth sprocket.

[0030] A slide rail 8 is fixed between the corresponding vertical links of the first chain 6 and the second chain 7. A telescopic cylinder 10 is fixed on the slider 9 of the slide rail 8. A gripping cylinder 11 is fixed to the output end of the telescopic cylinder 10.

[0031] A vertical connecting plate 19 is fixed between the corresponding outer chain plates of the first chain 6 and the second chain 7, and a slide rail 8 is fixed on the vertical connecting plate 19.

[0032] The lifting block 12 has a lifting surface 13, and the slider 9 moves along the lifting surface 13.

[0033] The telescopic cylinder 10 is fixed to the horizontal outer end of the slider 9.

[0034] The slider 9 is rotatably connected to a roller 14, and the outer wall of the roller 14 contacts the lifting surface 13 to reduce friction.

[0035] The distance between two adjacent telescopic cylinders 10 is the same as the distance between two adjacent cold heading dies 1.

[0036] A drive motor 15 is fixed on the workbench. A fifth sprocket 16 is fixed at the output end of the drive motor 15. A sixth sprocket 17 is fixed on the second column 3. A third chain 18 is installed between the fifth sprocket 16 and the sixth sprocket 17.

[0037] Compared with the prior art, the advantages of this utility model are: the utility model has a simple structure and can realize the lifting and movement of bolts according to different work positions. That is, when the chain stops moving at a reasonable position, the gripping cylinder 11 opens first, then the telescopic cylinder 10 extends, then the gripping cylinder 11 retracts to grab the bolt, then the chain moves, the slider 9 rises or falls along the lifting surface 13, then the gripping cylinder 11 opens, the bolt enters the mold of the next work position, and then the telescopic cylinder 10 retracts.

[0038] The term "comprising" or any other similar term is intended to cover non-exclusive inclusion, such that a process, article, or apparatus / device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to those processes, articles, or apparatus / devices.

[0039] In the description of this utility model, terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," which indicate direction or positional relationships, are based on the direction or positional relationships shown in the accompanying drawings. These are used merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0040] The technical solution of this utility model has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of this utility model.

Claims

1. A cold heading die (1) for bolts, characterized in that: include: Several cold heading dies (1) are used to produce bolts, forming a bolt production line; Workstation moving device, including: Rotate the first column (2) and the second column (3) connected to the workbench; The upper sprocket assembly includes a first sprocket (4) and a second sprocket (5) fixed to the upper ends of the first column (2) and the second column (3) respectively, and a first chain (6) sleeved on the first sprocket (4) and the second sprocket (5); The lower sprocket assembly includes a third sprocket and a fourth sprocket, which are respectively fixed to the upper ends of the first column (2) and the second column (3), and a second chain (7) sleeved on the third sprocket and the fourth sprocket; A slide rail (8) is fixed between the corresponding vertical links of the first chain (6) and the second chain (7). A telescopic cylinder (10) is fixed on the slider (9) of the slide rail (8). A gripping cylinder (11) is fixed at the output end of the telescopic cylinder (10). The lifting block (12) has a lifting surface (13), and the slider (9) moves along the lifting surface (13).

2. The cold heading die (1) for bolts according to claim 1, characterized in that: The telescopic cylinder (10) is fixed to the horizontal outer end of the slider (9).

3. The cold heading die (1) for bolts according to claim 1, characterized in that: The slider (9) is rotatably connected to a roller (14), and the outer wall of the roller (14) contacts the lifting surface (13).

4. The cold heading die (1) for bolts according to claim 1, characterized in that: The distance between two adjacent telescopic cylinders (10) is the same as the distance between two adjacent cold heading dies (1).

5. The cold heading die (1) for bolts according to claim 1, characterized in that: A drive motor (15) is fixed on the workbench. A fifth sprocket (16) is fixed at the output end of the drive motor (15). A sixth sprocket (17) is fixed on the second column (3). A third chain (18) is installed between the fifth sprocket (16) and the sixth sprocket (17).

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