Bolt processing device for synchronous processing of flower teeth and threads

Abstract

The utility model discloses a bolt processing device of flower tooth and thread synchronous processing, including main body board, upper thread rolling board, lower thread rolling board and thread rolling board, one side of main body board is fixed with upper thread rolling board, thread rolling board and lower thread rolling board, and upper thread rolling board, thread rolling board and lower thread rolling board are mutually parallel and all horizontal settings, the upper thread rolling board bottom end surface and thread rolling board upper end surface are inlaid, and thread rolling board lower end surface and lower thread rolling board upper end surface are inlaid, the length of upper thread rolling board and the length of lower thread rolling board are same, and the lower projection of upper thread rolling board and the lower projection of lower thread rolling board coincide, the utility model discloses a fixed upper thread rolling board, thread rolling board and lower thread rolling board on main body board, make bolt directly form thread and flower tooth after once thread rolling, can effectively improve production efficiency, and when necessary, upper thread rolling board, thread rolling board and lower thread rolling board can be individually fixed on main body board and used alone, make the device have good versatility.

Description

Technical Field

[0001] This utility model relates to the technical field of fasteners, and in particular to the technical field of bolt processing devices. Background Technology

[0002] There is a screw consisting of a toothed section in the middle and threaded sections at both ends of the toothed section. The outer surface of the toothed section has toothed patterns, and the outer surface of the threaded sections has external threads. The current production process involves cold heading the raw material, first using a thread rolling machine to roll the external threads on the threaded section, and then using another thread rolling machine to roll the external toothed patterns. This production method not only requires the use of two machines, but also involves material transfer, resulting in low production efficiency.

[0003] Existing patent CN208178338U discloses a device for simultaneously rolling the serrations and threads on the head of a cylindrical head screw. It includes a thread rolling plate and a knurling plate. The knurling plate is detachably mounted on top of the thread rolling plate to form a thread rolling assembly. The thread rolling plate has a thread rolling area and a flattening area arranged from left to right, while the knurling plate has a groove area and a knurling area arranged from left to right. The flattening area is located below the knurling area, and the groove area is located above the thread rolling area. A portion of the beginning of the knurling area is located above the thread rolling area. Although it can roll both serrations and threads in one operation, it can only be used to roll screws with one section of serrations and one section of threads. However, the knurling plate is mounted on the thread rolling plate, which means the knurling plate cannot be used independently. Furthermore, the need to include a flattening area on the thread rolling plate, which does not have a thread rolling function, results in a large size for the thread rolling plate and high replacement costs. Summary of the Invention

[0004] The purpose of this invention is to solve the problems in the prior art and to propose a bolt processing device that can simultaneously process knurling and threading. This device allows the knurling plate to be used independently, and the knurling plate does not need to have a non-knurling function area, thus reducing the production and replacement costs of the knurling plate.

[0005] To achieve the above objectives, this utility model proposes a bolt processing device for simultaneous processing of threaded and serrated teeth, comprising a main body plate, an upper threading plate, a lower threading plate, and a serrated tooth plate. The upper threading plate, the serrated tooth plate, and the lower threading plate are fixed on one side of the main body plate. The upper threading plate, the serrated tooth plate, and the lower threading plate are parallel to each other and are all horizontally arranged. The bottom end face of the upper threading plate is in contact with the upper end face of the serrated tooth plate, and the lower end face of the serrated tooth plate is in contact with the upper end face of the lower threading plate. The length of the upper threading plate and the lower threading plate are the same, and the lower projection of the upper threading plate coincides with the lower projection of the lower threading plate. A portion of the serrated tooth plate is located within the area enclosed by the upper and lower threading plates, and a portion of the serrated tooth plate is located outside the area enclosed by the upper and lower threading plates.

[0006] Preferably, the feed end of the knurling toothed plate is located between the feed end and the discharge end of the upper knurling toothed plate.

[0007] Preferably, the feed end of the knurled toothed plate is a guide slope.

[0008] Preferably, the upper toothed plate, the lower toothed plate, and the knurled toothed plate are fixed with several screws and several positioning rods on the side near the main body plate. The main body plate is provided with through holes and positioning holes corresponding to the screws. The screws pass through the through holes and are screwed with nuts. The positioning rods pass through the positioning holes.

[0009] Preferably, the main body plate is provided with three auxiliary grooves that correspond one-to-one with the upper toothed plate, the lower toothed plate, and the knurled toothed plate, and the ends of the positioning rod and the screw are located inside the auxiliary grooves.

[0010] The beneficial effects of this utility model are as follows: By fixing the upper thread rolling plate, the knurling plate, and the lower thread rolling plate to the main body plate, the bolt can directly form threads and knurling in one thread rolling process, which can effectively improve production efficiency. Moreover, when necessary, the upper thread rolling plate, the knurling plate, and the lower thread rolling plate can be fixed to the main body plate for individual use, making the device have good versatility.

[0011] The features and advantages of this utility model will be described in detail through embodiments and accompanying drawings. Attached Figure Description

[0012] Figure 1 This is a front view of the bolt processing device for simultaneous processing of perforated teeth and threads according to this utility model;

[0013] Figure 2 This is a rear view of the bolt processing device for simultaneous processing of perforated teeth and threads according to this utility model;

[0014] Figure 3 This is a top view of the bolt processing device of this utility model, which simultaneously processes the toothed and threaded teeth, after removing the upper tooth-rolling plate.

[0015] In the diagram: 1-Main plate, 10-Auxiliary groove, 11-Upper toothed plate, 12-Knotted toothed plate, 13-Lower toothed plate, 14-Screw, 15-Positioning rod, 16-Nut, 19-Guide slope. Detailed Implementation

[0016] Example 1:

[0017] See Figure 1 , Figure 2 , Figure 3This utility model relates to a bolt processing device for simultaneous processing of threaded and serrated teeth, comprising a main body plate 1, an upper threading plate 11, a lower threading plate 13, and a serrated tooth plate 12. The upper threading plate 11, the serrated tooth plate 12, and the lower threading plate 13 are fixed on one side of the main body plate 1. The upper threading plate 11, the serrated tooth plate 12, and the lower threading plate 13 are parallel to each other and are all horizontally arranged. The bottom end face of the upper threading plate 11 is in contact with the upper end face of the serrated tooth plate 12, and the lower end face of the serrated tooth plate 12 is in contact with the upper end face of the lower threading plate 13. The length of the upper threading plate 11 and the lower threading plate 13 are the same, and the lower projection of the upper threading plate 11 coincides with the lower projection of the lower threading plate 13. A portion of the serrated tooth plate 12 is located within the area enclosed by the upper threading plate 11 and the lower threading plate 13, and a portion of the serrated tooth plate 12 is located outside the area enclosed by the upper threading plate 11 and the lower threading plate 13.

[0018] Example 2:

[0019] To ensure that the bolts do not generate excessive resistance to the device when the thread rolling begins, the feed end of the thread rolling plate 12 is located between the feed end and the discharge end of the upper thread rolling plate 11.

[0020] To ensure that the bolt does not collide with the knurling plate 12 when the knurling begins, the feed end of the knurling plate 12 is a guide slope 19.

[0021] Example 3:

[0022] In order to facilitate the positioning and fixing of the upper toothed plate 11, the lower toothed plate 13 and the knurled toothed plate 12, several screws 14 and several positioning rods 15 are fixed on the side of the upper toothed plate 11, the lower toothed plate 13 and the knurled toothed plate 12 near the main body plate 1. The main body plate 1 is provided with through holes and positioning holes corresponding to the screws 14. The screws 14 pass through the through holes and nuts 16 are screwed on the screws 14. The positioning rods 15 pass through the positioning holes.

[0023] To prevent the screw 14 and the positioning rod 15 from affecting the installation of the main plate 1 on the tooth rolling machine, the main plate 1 is provided with three auxiliary grooves 10 corresponding to the upper tooth rolling plate 11, the lower tooth rolling plate 13 and the tooth rolling plate 12. The ends of the positioning rod 15 and the screw 14 are located inside the auxiliary grooves 10.

[0024] The working process of this utility model:

[0025] In the operation of this utility model bolt processing device that simultaneously processes serrations and threads, two devices are installed on a thread rolling machine. The upper thread rolling plate 11 and the lower thread rolling plate 13 perform thread rolling on both ends of the bolt. When the bolt comes into contact with the serration plate 12, the serration plate 12 performs serration on the bolt. The thread and serration can be processed in one go, which improves production efficiency.

[0026] The above embodiments are illustrative of the present invention and are not intended to limit the present invention. Any simple modifications to the present invention are within the protection scope of the present invention.

Claims

1. A bolt processing device for simultaneous machining of perforated teeth and threaded teeth, characterized in that: The system includes a main plate (1), an upper toothed plate (11), a lower toothed plate (13), and a knurled toothed plate (12). The upper toothed plate (11), the knurled toothed plate (12), and the lower toothed plate (13) are fixed on one side of the main plate (1). The upper toothed plate (11), the knurled toothed plate (12), and the lower toothed plate (13) are parallel to each other and are all horizontally arranged. The bottom surface of the upper toothed plate (11) is in contact with the upper surface of the knurled toothed plate (12). The lower end face is in contact with the upper end face of the lower toothed plate (13). The length of the upper toothed plate (11) is the same as that of the lower toothed plate (13). The lower projection of the upper toothed plate (11) coincides with the lower projection of the lower toothed plate (13). A portion of the embossed toothed plate (12) is located in the area between the upper toothed plate (11) and the lower toothed plate (13). A portion of the embossed toothed plate (12) is located outside the area between the upper toothed plate (11) and the lower toothed plate (13).

2. The bolt processing device for simultaneous processing of perforated teeth and threads as described in claim 1, characterized in that: The feed end of the knurling toothed plate (12) is located between the feed end and the discharge end of the upper knurling toothed plate (11).

3. The bolt processing device for simultaneous machining of perforated teeth and threads as described in claim 1, characterized in that: The feed end of the knurling toothed plate (12) is a guide slope (19).

4. The bolt processing device for simultaneous machining of perforated teeth and threads as described in claim 1, characterized in that: The upper toothed plate (11), lower toothed plate (13) and knurled toothed plate (12) are fixed with several screws (14) and several positioning rods (15) near the main body plate (1). The main body plate (1) is provided with through holes and positioning holes corresponding to the screws (14). The screws (14) pass through the through holes and are screwed with nuts (16). The positioning rods (15) pass through the positioning holes.

5. The bolt processing device for simultaneous processing of perforated teeth and threads as described in claim 4, characterized in that: The main plate (1) is provided with three auxiliary grooves (10) that correspond one-to-one with the upper toothed plate (11), the lower toothed plate (13) and the knurled toothed plate (12). The end of the positioning rod (15) and the end of the screw (14) are both located inside the auxiliary grooves (10).

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