A thread rolling device for hot-dip galvanized screw
By designing an automated thread rolling device, the problems of manual operation and screw misalignment in hot-dip galvanized screw thread rolling have been solved, achieving efficient automated thread rolling and high-quality thread rolling.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIAXING HUAYUAN STANDARD PARTS CO LTD
- Filing Date
- 2025-08-19
- Publication Date
- 2026-07-21
AI Technical Summary
Existing hot-dip galvanized screw thread rolling devices require a lot of manual operation, and the thread rolling quality is easily affected by the screw direction deviation, resulting in poor thread rolling quality.
A thread rolling device was designed, comprising a thread rolling box, a support frame, a feeding mechanism, a hydraulic cylinder, and a limiting ring seat. Through the cooperation of the hydraulic cylinder and the limiting ring seat, the automatic feeding and limiting guidance of the screw are realized, reducing manual operation and preventing screw deviation.
It has achieved automated screw feeding and thread rolling, improved thread rolling quality and efficiency, reduced manual labor, and ensured the accuracy of thread rolling direction.
Smart Images
Figure CN224525897U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of screw thread rolling technology, specifically a thread rolling device for hot-dip galvanized screws. Background Technology
[0002] Thread rolling machines are multi-functional cold extrusion forming machine tools. Within their rolling pressure range, they can perform thread rolling, straight knitting, and oblique knitting on workpieces in a cold state. Thread rolling cold rolling is an advanced non-cutting machining process that effectively improves the internal and surface quality of workpieces. Existing devices require manual pushing of the screw into the thread rolling machine for thread rolling, necessitating a large amount of manual labor. Furthermore, if the other end of the screw rests on a support base, and the thread rolling wheel inside the machine vibrates in the screw direction during thread rolling, the other end of the screw may lift upwards, causing the thread rolling direction to deviate and resulting in poor thread rolling quality. Summary of the Invention
[0003] The purpose of this utility model is to address the aforementioned problems in existing technologies and propose a solution. A thread rolling device for hot-dip galvanized screws has the advantage of higher thread rolling quality.
[0004] The objective of this utility model can be achieved through the following technical solution: A thread rolling device for hot-dip galvanized screws includes a thread rolling box, a support frame, and a propulsion mechanism. The support frame is fixedly connected to one side of the thread rolling box. Two thread rolling rollers for rolling the screw are symmetrically installed inside the thread rolling box. A first hydraulic cylinder and a second hydraulic cylinder are fixed on the support frame. A lifting seat is fixed on the first hydraulic cylinder, and a first limiting ring seat is fixed on the lifting seat. The first limiting ring seat has a first limiting part. A top plate is installed on the top of the thread rolling box. A third hydraulic cylinder is fixed on the top plate. A second limiting ring seat is fixed on the piston rod of the third hydraulic cylinder. The second limiting ring seat has a second limiting part. A limiting cylinder for passing through the screw is fixedly connected to the second hydraulic cylinder; The propulsion mechanism includes a propulsion frame and a fourth hydraulic cylinder fixed on the propulsion frame. A propulsion column is fixed on the piston rod of the fourth hydraulic cylinder for pushing the screw into the thread rolling box.
[0005] Preferably, a first guide ring is installed on both sides of the first limiting ring seat, and a second guide ring is installed on both sides of the second limiting ring seat for guiding the screw.
[0006] Preferably, the limiting cylinder has a third guide ring at both ends for guiding the screw.
[0007] Preferably, the first limiting ring seat and the second limiting ring seat together form a limiting cylinder, and the limiting cylinder, the limiting cylinder, and the propulsion column are located on the same axis.
[0008] Preferably, a first height detector is installed at the bottom of the first limiting ring seat.
[0009] Preferably, a second height detector is installed at the bottom of the second limiting ring seat.
[0010] Compared with the prior art, the advantages of this utility model are: by setting up a liftable limiting cylinder and a limiting tube, it is beneficial to automatically push the screw into the thread rolling box for automatic feeding and thread rolling operations without the need for manual pushing by operators, which reduces a lot of manual labor and has a high degree of automation. At the same time, the limiting cylinder and the limiting tube can limit and guide the screw when pushing it, preventing the screw from deviating in direction during the pushing process, which is beneficial to improving the quality of subsequent thread rolling and increasing thread rolling efficiency. Attached Figure Description
[0011] Figure 1 This is a side sectional view of the present invention.
[0012] Figure 2 This is a top view of the present invention.
[0013] Figure 3 This is a front sectional view of the present invention.
[0014] In the diagram, 2 is the thread rolling box; 21 is the thread rolling roller; 3 is the support frame; 31 is the first hydraulic cylinder; 311 is the lifting seat; 312 is the first limiting ring seat; 313 is the first limiting part; 32 is the third hydraulic cylinder; 33 is the top plate; 34 is the second limiting ring seat; 35 is the second limiting part; 4 is the second hydraulic cylinder; 41 is the limiting cylinder; 51 is the push frame; 52 is the fourth hydraulic cylinder; 53 is the push column; 61 is the first guide ring; 62 is the second guide ring; 63 is the third guide ring; 7 is the first height detector; and 8 is the second height detector. Detailed Implementation
[0015] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.
[0016] like Figures 1 to 3As shown, a thread rolling device for hot-dip galvanized screws includes a thread rolling box 2, a support frame 3, and a propulsion mechanism. The support frame 3 is fixedly connected to one side of the thread rolling box 2. Two thread rolling rollers 21 for rolling the screw are symmetrically installed inside the thread rolling box 2. A first hydraulic cylinder 31 and a second hydraulic cylinder 4 are fixed on the support frame 3. A lifting seat 311 is fixed on the first hydraulic cylinder 31, and a first limiting ring seat 312 is fixed on the lifting seat 311. The first limiting ring seat 312 has a first limiting part 313. A top plate 33 is installed on the top of the thread rolling box 2. A third hydraulic cylinder 32 is fixed on the top plate 33. A second limiting ring seat 34 is fixed on the piston rod of the third hydraulic cylinder 32, and the second limiting ring seat 34 has a second limiting part 35. A limiting cylinder 41 for passing through the screw is fixedly connected to the second hydraulic cylinder 4; The propulsion mechanism includes a propulsion frame 51 and a fourth hydraulic cylinder 52 fixed on the propulsion frame 51. A propulsion column 53 is fixed on the piston rod of the fourth hydraulic cylinder 52 for pushing the screw into the thread rolling box 2.
[0017] With the above structure, this utility model also includes a robotic arm for feeding the screw. The operator controls the robotic arm to insert the screw into the limiting cylinder 41. Then, through the pushing mechanism behind the limiting cylinder 41, the fourth hydraulic cylinder 52 pushes the pushing column 53 towards the screw. The pushing column 53 pushes the screw from the limiting cylinder 41 through the first limiting ring seat 312 and the second limiting ring seat 34 into the thread rolling box 2. When the screw moves between the first limiting ring seat 312 and the second limiting ring seat 34, the first hydraulic cylinder 31 raises the first limiting ring seat 312 upward, and the second hydraulic cylinder 4 lowers the second limiting ring seat 34 downward, so that the first limiting ring seat 312 and the second limiting ring seat 34 abut against each other, forming a limiting cylinder through which the screw can pass. The screw passes through the limiting cylinder and is threaded by the thread rolling box 2. This structure is designed to automatically push the screw into the thread rolling box 2 for automatic feeding and thread rolling operations without the need for manual pushing by operators, thus reducing a large amount of manual labor and achieving a high degree of automation. At the same time, the limiting cylinder and the limiting cylinder 41 can limit and guide the screw during the pushing process, preventing the screw from deviating in direction during the pushing process, which helps to improve the quality of subsequent thread rolling and increase thread rolling efficiency.
[0018] Specifically, such as Figures 1 to 3 As shown, first guide rings 61 are installed on both sides of the first limiting ring seat 312, and second guide rings 62 are installed on both sides of the second limiting ring seat 34 for guiding the screw.
[0019] By adopting the above structure and setting the first guide ring 61 and the second guide ring 62, it is beneficial to guide the moving screw to a certain extent, and the guiding effect is better.
[0020] like Figures 1 to 3 As shown, the limiting cylinder 41 has third guide rings 63 at both ends for guiding the screw. By setting the third guide rings 63, it is beneficial to guide the screw better and achieve a better guiding effect.
[0021] like Figures 1 to 3 As shown, the first limiting ring seat 312 and the second limiting ring seat 34 together form a limiting tube, and the limiting tube, the limiting cylinder 41, and the propulsion column 53 are located on the same axis.
[0022] like Figures 1 to 3 As shown, a first height detector 7 is installed at the bottom of the first limiting ring seat 312. A second height detector 8 is installed at the bottom of the second limiting ring seat 34. By setting the first height detector 7 and the second height detector 8, both the first height detector 7 and the second height detector 8 in this utility model are connected to a controller, and the controller is connected to the first hydraulic cylinder 31 and the second hydraulic cylinder 4. This facilitates real-time detection of the height of the first limiting ring seat 312 and the second limiting ring seat 34. By transmitting the detected data to the controller on the device, the controller drives the first hydraulic cylinder 31 and the second hydraulic cylinder 4 to adjust the height, so that the limiting cylinder and the limiting cylinder 41 are on the same axis, which is beneficial for better detection effect.
[0023] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.
[0024] Furthermore, the use of terms such as "first" and "second" in this invention is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Meanwhile, the word "and / or" throughout the text means including three solutions; for example, "A and / or B" includes solution A, solution B, or a solution that simultaneously satisfies A and B. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.
[0025] All of the above components are general standard parts or components known to those skilled in the art. Their structure and principles can be learned by those skilled in the art through technical manuals or conventional experimental methods.
[0026] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.
Claims
1. A thread rolling device for hot-dip galvanized screws, comprising a thread rolling box (2), a support frame (3), and a propulsion mechanism, characterized in that, A support frame (3) is fixedly connected to one side of the thread rolling box (2). Two thread rolling rollers (21) for rolling threads on the screw are symmetrically installed inside the thread rolling box (2). A first hydraulic cylinder (31) and a second hydraulic cylinder (4) are fixed on the support frame (3). A lifting seat (311) is fixed on the first hydraulic cylinder (31). A first limiting ring seat (312) is fixed on the lifting seat (311). A first limiting part (313) is provided on the first limiting ring seat (312). A top plate (33) is installed on the top of the thread rolling box (2). A third hydraulic cylinder (32) is fixed on the top plate (33). A second limiting ring seat (34) is fixed on the piston rod of the third hydraulic cylinder (32). A second limiting part (35) is provided on the second limiting ring seat (34). A limiting cylinder (41) for passing through the screw is fixedly connected to the second hydraulic cylinder (4); The propulsion mechanism includes a propulsion frame (51) and a fourth hydraulic cylinder (52) fixed on the propulsion frame (51). The piston rod of the fourth hydraulic cylinder (52) is fixed with a propulsion column (53) for pushing the screw into the thread rolling box (2).
2. The thread rolling device for a hot-dip galvanized screw according to claim 1, characterized in that, The first limiting ring seat (312) has a first guide ring (61) installed on both sides, and the second limiting ring seat (34) has a second guide ring (62) installed on both sides, for guiding the screw.
3. The thread rolling device for a hot-dip galvanized screw according to claim 1, characterized in that, The limiting cylinder (41) has a third guide ring (63) at both ends for guiding the screw.
4. The thread rolling device for a hot-dip galvanized screw according to claim 1, characterized in that, The first limiting ring seat (312) and the second limiting ring seat (34) together form a limiting tube, and the limiting tube, the limiting cylinder (41), and the propulsion column (53) are located on the same axis.
5. The thread rolling device for a hot-dip galvanized screw according to claim 1, characterized in that, A first height detector (7) is installed at the bottom of the first limiting ring seat (312).
6. The thread rolling device for a hot-dip galvanized screw according to claim 1, characterized in that, A second height detector (8) is installed at the bottom of the second limiting ring seat (34).