Anti-deformation thread rolling structure in screw production

Abstract

The utility model discloses a kind of anti-deformation thread rolling structures in screw production, including thread rolling table, the fixed die is fixedly connected in the top of thread rolling table, the top and bottom of thread rolling table recess inner wall are all fixedly connected with first sliding block, the top and bottom of mounting seat are all set with sliding slot, the sliding slot is matched with first sliding block structure, recess is set in the top side of thread rolling table, mounting seat is inserted in the inside of recess, one end of mounting seat is provided with second hydraulic cylinder, mounting seat other end is provided with limit rod and limit sleeve, limit sleeve is fixedly connected with thread rolling table, first hydraulic cylinder is installed in the inside of mounting seat, one end of first hydraulic cylinder is connected with pressure sensor, pressure sensor and first hydraulic cylinder are all provided with multiple groups. The device can improve the stability of movable die movement, simultaneously carries out multiple-point pressure detection to movable die, ensures the uniformity of movable die under pressure, further ensures the uniformity of movable die to screw processing, avoids the emergence of deformation condition.

Description

Technical Field

[0001] This utility model relates to the field of screw manufacturing technology, specifically to an anti-deformation thread rolling structure in screw manufacturing. Background Technology

[0002] Screw production refers to the industrial process of manufacturing fasteners such as screws, bolts, and nuts. A screw rolling machine (also known as a thread rolling machine or thread rolling mill) is a key piece of equipment used in screw production to process external threads on the shank of fasteners such as bolts and screws. It uses cold extrusion molding to press precise, high-strength threads onto the metal surface, rather than removing material through cutting.

[0003] Screw production requires the use of thread rolling machines. Existing thread rolling machines mainly achieve thread rolling by having the screw contact and rub against the stationary die through a moving die. However, the moving die is prone to shaking and instability during movement, which can lead to uneven pressure on the screw and cause screw deformation during processing. Improvements are needed. Utility Model Content

[0004] The purpose of this invention is to provide an anti-deformation thread rolling structure for screw production, so as to solve the problem of uneven pressure and deformation of screws caused by the unstable movement of the thread rolling machine mold mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a thread rolling structure for preventing deformation in screw production, comprising a thread rolling table, a fixed mold fixedly connected to the top of the thread rolling table, a groove formed on the top side of the thread rolling table, an installation seat inserted inside the groove, a second hydraulic cylinder provided at one end of the installation seat, a limit rod and a limit sleeve provided at the other end of the installation seat, the limit sleeve being fixedly connected to the thread rolling table, a first hydraulic cylinder installed inside the installation seat, a pressure sensor connected to one end of the first hydraulic cylinder, multiple sets of pressure sensors and first hydraulic cylinders being provided, a movable mold provided on one side of the pressure sensor, the movable mold being located on the side of the fixed mold.

[0006] Preferably, the top and bottom of the inner wall of the groove of the wire rolling table are fixedly connected to the first slider, and the top and bottom of the mounting base are provided with sliding grooves, which match the structure of the first slider.

[0007] Preferably, the mounting base and the thread rolling table are slidably connected, an inspection hole is provided on one side of the mounting base, and slide rails are fixedly connected to the top and bottom of the inner wall of the mounting base.

[0008] Preferably, a second slider is fixedly connected to one end of the movable mold, and the second slider is symmetrically distributed about the bisector of the movable mold.

[0009] Preferably, one end of the second slider matches the slide rail structure, and the movable mold is slidably connected to the mounting base through the second slider and the slide rail.

[0010] Preferably, a limiting sleeve is fixedly connected to one end of the thread rolling table, a limiting rod is inserted into one end of the limiting sleeve, one end of the limiting rod is fixedly connected to the mounting base, the limiting rod and the limiting sleeve form a sliding connection, and the limiting rod and the limiting sleeve are symmetrically distributed about the bisector of the mounting base.

[0011] Preferably, the wire rolling table has an opening on one side, and an inspection door is hinged to the inside of the opening.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] (1) This device can improve the stability of the moving mold and perform multi-point pressure detection on the moving mold to ensure the uniformity of pressure on the moving mold, thereby ensuring the uniformity of screw processing by the moving mold and avoiding deformation.

[0014] (2) This device uses a second hydraulic cylinder, a limit rod and a limit sleeve at the front and rear ends of the mounting base on the outer wall of the movable mold to ensure the stability of the longitudinal movement of the movable mold. At the same time, it uses a slide rail, a second slider and a first hydraulic cylinder on the outer wall of the movable mold to ensure the stability of the lateral movement of the movable mold. This avoids the situation of shaking or position deviation during the movement of the movable mold, and thus ensures the uniformity of the screw processing by the movable mold.

[0015] (3) This device can monitor the pressure on multiple points of the movable mold by setting a pressure sensor between the first hydraulic cylinder and the movable mold, thereby ensuring the uniformity of screw processing by the movable mold and avoiding screw deformation. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of an anti-deformation thread rolling structure in screw production according to the present invention;

[0017] Figure 2 This is a side view of a thread rolling table for an anti-deformation thread rolling structure in screw production according to this utility model;

[0018] Figure 3 This is a side view of the mounting base of an anti-deformation thread rolling structure used in screw production according to this utility model.

[0019] In the diagram: 1. Inspection door; 2. Mounting base; 3. First hydraulic cylinder; 4. Pressure sensor; 5. Thread rolling table; 6. First slider; 7. Slide rail; 8. Second slider; 9. Movable mold; 10. Fixed mold; 11. Second hydraulic cylinder; 12. Limit rod; 13. Limit sleeve. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-3This utility model provides a technical solution: an anti-deformation thread rolling structure for screw production, including a thread rolling table 5, a fixed mold 10 fixedly connected to the top of the thread rolling table 5, and first sliders 6 fixedly connected to the top and bottom of the inner wall of the groove of the thread rolling table 5. The top and bottom of the mounting base 2 are provided with sliding grooves that match the structure of the first sliders 6. This structure ensures the stability of the movement of the mounting base 2. The mounting base 2 and the thread rolling table 5 form a sliding connection. An inspection hole is provided on one side of the mounting base 2. Slide rails 7 are fixedly connected to the top and bottom of the inner wall of the mounting base 2. This structure allows the movement of the mounting base 2 to drive the movable mold 9 to perform thread rolling on the screw. A limiting sleeve 13 is fixedly connected to one end of the thread rolling table 5. A limiting rod 12 is inserted, one end of which is fixedly connected to the mounting base 2. The limiting rod 12 and the limiting sleeve 13 form a sliding connection. The limiting rod 12 and the limiting sleeve 13 are symmetrically distributed about the bisector of the mounting base 2. This structure, by setting the limiting rod 12 and the limiting sleeve 13, can cooperate with the second hydraulic cylinder 11 to improve the stability of the mounting base 2 during longitudinal reciprocating motion, thereby preventing the mounting base 2 from tilting or shifting. An opening is provided on one side of the thread rolling table 5, and an inspection door 1 is hinged inside the opening. This structure facilitates the disassembly and maintenance of the mounting base 2 and its accessories inside the thread rolling table 5. A groove is provided on the top side of the thread rolling table 5, and the mounting base 2 is inserted inside the groove. One end of the mounting base 2 is provided with a second hydraulic cylinder 11. The mounting base 2 has a limit rod 12 and a limit sleeve 13 at one end, and the limit sleeve 13 is fixedly connected to the thread rolling table 5. A first hydraulic cylinder 3 is installed inside the mounting base 2. One end of the first hydraulic cylinder 3 is connected to a pressure sensor 4. Multiple sets of pressure sensors 4 and first hydraulic cylinders 3 are provided. A movable mold 9 is located on one side of the pressure sensor 4, which is situated on the side of the fixed mold 10. The pressure sensor 4 is controlled by a PLC. The first hydraulic cylinder 3 can drive the movable mold 9 to adjust the pressure applied to the screw. The pressure sensor 4 can monitor the pressure applied to the movable mold 9. By monitoring and comparing multiple pressure values, if the difference is significant, the pressure on the movable mold 9 is uneven and needs adjustment. After adjustment, the uniformity of processing can be guaranteed. One end of the movable mold 9 is fixedly connected to the second slider 8. The second slider 8 is symmetrically distributed about the bisector of the movable mold 9. This structure can ensure the stability of the top and bottom movement of the movable mold 9. One end of the second slider 8 matches the structure of the slide rail 7. The movable mold 9 is slidably connected to the mounting base 2 through the second slider 8 and the slide rail 7. This structure can improve the stability of the movable mold 9 during the lateral movement by setting the second slider 8 and the slide rail 7, avoid the position deviation and tilt of the movable mold 9, and ensure the uniformity of screw processing by the movable mold 9. In this device, the screws are mainly operated by the feeding mechanism. This part is existing technology, so it will not be described in detail here.

[0022] Working principle: When using the anti-deformation thread rolling structure in the production of this screw, the position of the movable mold 9 is first adjusted. During the adjustment, the first hydraulic cylinder 3 pushes the movable mold 9 to move laterally. During the movement of the movable mold 9, the second sliders 8 at the top and bottom slide inside the slide rail 7. When the movable mold 9 is in the appropriate position, the screw enters between the movable mold 9 and the fixed mold 10 through the feeding mechanism. At this time, the second hydraulic cylinder 11 pushes the movable mold 9 to move. During the movement of the movable mold 9, the screw enters between the movable mold 9 and the fixed mold 10 and moves to perform thread rolling. During the processing, the movable mold 9 moves more stably under the action of the second hydraulic cylinder 11, the limit rod 12 and the limit sleeve 13, ensuring the quality of processing.

[0023] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A screw rolling structure for preventing deformation in screw production, comprising a screw rolling table (5), characterized in that: The top of the thread rolling table (5) is fixedly connected to a fixed mold (10). The top side of the thread rolling table (5) is provided with a groove. A mounting seat (2) is inserted into the groove. A second hydraulic cylinder (11) is provided at one end of the mounting seat (2). A limit rod (12) and a limit sleeve (13) are provided at the other end of the mounting seat (2). The limit sleeve (13) is fixedly connected to the thread rolling table (5). A first hydraulic cylinder (3) is installed inside the mounting seat (2). A pressure sensor (4) is connected to one end of the first hydraulic cylinder (3). Multiple sets of pressure sensors (4) and first hydraulic cylinders (3) are provided. A movable mold (9) is provided on one side of the pressure sensor (4). The movable mold (9) is located on one side of the fixed mold (10).

2. The anti-deformation thread rolling structure in screw production according to claim 1, characterized in that: The top and bottom of the groove inner wall of the thread rolling table (5) are fixedly connected to the first slider (6), and the top and bottom of the mounting base (2) are provided with sliding grooves, which are matched with the structure of the first slider (6).

3. The anti-deformation thread rolling structure in screw production according to claim 1, characterized in that: The mounting base (2) and the thread rolling table (5) are slidably connected. An inspection hole is provided on one side of the mounting base (2). Slide rails (7) are fixedly connected to the top and bottom of the inner wall of the mounting base (2).

4. The anti-deformation thread rolling structure in screw production according to claim 1, characterized in that: One end of the movable mold (9) is fixedly connected to a second slider (8), and the second slider (8) is symmetrically distributed about the bisector of the movable mold (9).

5. The anti-deformation thread rolling structure in screw production according to claim 4, characterized in that: One end of the second slider (8) is matched with the slide rail (7) structure, and the movable mold (9) is slidably connected to the mounting base (2) through the second slider (8) and the slide rail (7).

6. The anti-deformation thread rolling structure in screw production according to claim 1, characterized in that: One end of the thread rolling table (5) is fixedly connected to a limiting sleeve (13), and a limiting rod (12) is inserted into one end of the limiting sleeve (13). One end of the limiting rod (12) is fixedly connected to the mounting base (2). The limiting rod (12) and the limiting sleeve (13) form a sliding connection. The limiting rod (12) and the limiting sleeve (13) are symmetrically distributed about the bisector of the mounting base (2).

7. The anti-deformation thread rolling structure in screw production according to claim 1, characterized in that: An opening is provided on one side of the wire rolling table (5), and an inspection door (1) is hinged to the inside of the opening.

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