Universal screw straightening machine
By designing sliding adjustment components and equal height support components, the problems of inaccurate positioning and contact torsion damage in existing screw straightening equipment have been solved, enabling fast and accurate screw straightening and improving production efficiency and quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUBEI TIANYI INTELLIGENT TECH CO LTD
- Filing Date
- 2025-05-27
- Publication Date
- 2026-06-05
AI Technical Summary
Existing lead screw straightening equipment is complex to operate and has inaccurate positioning, resulting in low straightening efficiency and easy to cause contact torsion damage to the lead screw, making it difficult to meet the production capacity requirements of high-precision lead screws.
The device employs a sliding adjustment component and a height-equal support component to achieve rapid and accurate positioning. By placing a bearing between the pressure head and the rotating downward pressure drive component, contact torsional damage is avoided. The overall structure is compact and the operation is simple.
It enables rapid adaptation and precise positioning of lead screws of different lengths, improves straightening efficiency, avoids lead screw damage, and meets the production requirements of high-precision lead screws.
Smart Images

Figure CN224322116U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of lead screw straightening equipment technology, and in particular to a general-purpose lead screw straightening machine. Background Technology
[0002] In today's era of rapid technological advancement and continuously improving production levels, higher demands are being placed on product precision and production efficiency. Especially in industries such as robotics, industrial automation, and machinery manufacturing, the lead screw, as a crucial transmission component, directly impacts the performance and operational stability of the equipment.
[0003] However, existing lead screw straightening equipment generally suffers from problems such as complex operation and inaccurate positioning of the lead screw to be straightened, resulting in low straightening efficiency. In addition, existing lead screw straightening equipment is prone to contact torsional damage to the lead screw to be straightened during the straightening process, affecting the straightening quality and making it difficult to meet the growing demand for high-precision lead screws. Utility Model Content
[0004] The purpose of this invention is to provide a universal lead screw straightening machine that can quickly and accurately position the lead screw to be straightened and can quickly adapt to lead screws of different lengths. It also avoids contact torsional damage to the lead screw, has a compact overall structure, and is easy to operate.
[0005] To achieve the above objectives, the following technical solution is adopted:
[0006] A general-purpose lead screw straightening machine includes a sliding adjustment assembly, two equal-height support assemblies separately disposed on the sliding adjustment assembly, and a pressing straightening mechanism disposed above and between the two equal-height support assemblies. The two equal-height support assemblies are used to support and position the two ends of the lead screw to be straightened. The pressing straightening mechanism includes a pressure head, a rotary pressing drive assembly for driving the pressure head downward, and a bearing disposed between the pressure head and the rotary pressing drive assembly. The inner ring of the bearing is connected to the rotary pressing drive assembly, and the outer ring of the bearing is connected to the pressure head. The inner ring of the bearing is driven by the rotary pressing drive assembly to rotate relative to the outer ring of the bearing.
[0007] Preferably, the rotary pressing drive assembly includes a pressing screw arranged in a vertical direction, a screw nut connected to the middle of the pressing screw, and a manual operating frame located at the upper end of the pressing screw; the manual operating frame is used to rotate to drive the pressing screw to spirally rise and fall along the screw nut.
[0008] Preferably, the height equalization support assembly includes a height equalization block and a plurality of magnets spaced apart and embedded in the bottom of the height equalization block; the top of the height equalization block has a V-shaped groove for accommodating the lead screw to be straightened.
[0009] Preferably, the sliding adjustment assembly includes at least one slide rail and two sliders disposed on each slide rail; the top of each slider on the same slide rail is connected to a height-equal support assembly.
[0010] Preferably, a pad is provided between the equal-height support component and the slider; the magnet is used to magnetically fix it to the pad.
[0011] Preferably, a limiting block is provided at each end of the slide rail along its length to prevent the slider from detaching from the slide rail.
[0012] Preferably, the screw straightening machine further includes a worktable and a support; the sliding adjustment component is installed on the worktable surface, and the downward straightening mechanism is installed on the top side of the worktable via the support.
[0013] By adopting the above solution, the beneficial effects of this utility model are:
[0014] This invention provides a universal lead screw straightening machine. By incorporating a sliding adjustment component and a height-equal support component, it achieves rapid and precise positioning of the lead screw to be straightened, and can quickly adapt to lead screws of different lengths, offering strong versatility and significantly improving straightening efficiency. Furthermore, by installing a bearing between the pressure head and the rotating downward pressure drive component, the contact area between the pressure head and the lead screw remains stationary during the downward pressure straightening process, preventing contact torsional damage to the lead screw. The overall structure is compact and easy to operate. Attached Figure Description
[0015] Figure 1 This is a perspective view of the present utility model;
[0016] Figure 2 This is an exploded view of the downward straightening mechanism of this utility model;
[0017] Figure 3 This is an exploded view of the equal-height support component of this utility model;
[0018] The following are explanations of the labels in the attached diagram:
[0019] 1—Sliding adjustment component, 2—Equal height support component,
[0020] 3—Pressing straightening mechanism; 4—Screw to be straightened.
[0021] 5—Plate, 6—Limit block,
[0022] 7—Workbench, 8—Support,
[0023] 11—Slide rail, 12—Slider,
[0024] 21—Contour block, 22—Magnet,
[0025] 31—Insulator head, 32—Bearing,
[0026] 33—Pressing screw, 34—Screw nut
[0027] 35—Manual operation frame. Detailed Implementation
[0028] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.
[0029] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0030] In the description of this embodiment, the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to 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. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.
[0031] Reference Figures 1 to 3 As shown, this utility model provides a universal lead screw straightening machine, including a sliding adjustment assembly 1, two equal-height support assemblies 2 separately disposed on the sliding adjustment assembly 1, and a pressing straightening mechanism 3 disposed above and between the two equal-height support assemblies 2; the two equal-height support assemblies 2 are used to support and position the two ends of the lead screw 4 to be straightened; the pressing straightening mechanism 3 includes a pressure head 31, a rotary pressing drive assembly for driving the pressure head 31 to press down, and a bearing 32 disposed between the pressure head 31 and the rotary pressing drive assembly; specifically, the pressure head 31 is made of copper. The inner ring of the bearing 32 is connected to the rotary pressing drive assembly, and the outer ring of the bearing 32 is connected to the pressure head 31; the inner ring of the bearing 32 is driven by the rotary pressing drive assembly to rotate relative to the outer ring of the bearing 32. Specifically, the bearing 32 is a deep groove ball bearing.
[0032] The universal lead screw straightening machine provided by this utility model, in practical applications, places the part of the lead screw 4 to be straightened directly below the pressing straightening mechanism 3, with each end of the part to be straightened placed on a level support component 2. The pressing straightening mechanism 3 presses down to contact the part to be straightened to achieve straightening. The overall structure is compact and the operation is simple. It can batch straighten high-precision lead screws in a short time and in a small space to meet the ever-increasing lead screw production capacity requirements.
[0033] The rotary pressing drive assembly includes a pressing screw 33 arranged vertically, a screw nut 34 connected to the middle of the pressing screw 33, and a manual operating frame 35 located at the upper end of the pressing screw 33. The manual operating frame 35 is used to rotate to drive the pressing screw 33 to spirally rise and fall along the screw nut 34. Further, after the pressing screw 33 and screw nut 34 are assembled, the inner ring of the bearing 32 is locked to the lower end of the pressing screw 33 with screws. Then, the pressure head 31 engages with the outer ring of the bearing 32 and is locked with a hexagonal set screw.
[0034] In the rotary pressing drive assembly, the combination of pressing screw 33 and screw nut 34 enables the operator to meet the precise requirements of the straightening operation, ensuring accuracy while completing a smooth, fast, and labor-saving pressing action. With the screw nut 34 fixed, a bearing 32 is installed between the pressing head 31 and the rotary pressing drive assembly. During the helical pressing process of the pressing screw 33, the pressing screw 33 drives the inner ring of the bearing 32 to rotate relative to the outer ring of the bearing 32. The outer ring of the bearing 32 only performs a straight up and down movement, so the pressing head 31 also only performs a straight up and down movement, avoiding contact torsional damage to the screw 4 to be straightened caused by the pressing head 31.
[0035] The height equalization support assembly 2 includes a height equalization block 21 and a plurality of magnets 22 spaced apart and embedded in the bottom of the height equalization block 21; the top of the height equalization block 21 is provided with a V-shaped groove for accommodating the lead screw 4 to be straightened.
[0036] The sliding adjustment assembly 1 includes at least one slide rail 11 and two sliders 12 disposed on each slide rail 11; the top of each slider 12 on the same slide rail 11 is connected to a height equalization support assembly 2. The sliding adjustment assembly 1 uses a combination of slide rail 11 and sliders 12, which allows the height equalization support assembly 2 to move quickly and smoothly along a straight line. By sliding the sliders 12 on the slide rail 11 to drive the height equalization support assembly 2 to move, the two height equalization support assemblies 2 can be moved together, or the relative distance between the two height equalization support assemblies 2 can be adjusted, thereby achieving rapid positioning of the lead screw 4 to be straightened and adapting to lead screws 4 of different lengths to be straightened.
[0037] A pad 5 is also provided between the height equalization support assembly 2 and the slider 12; the magnet 22 is used to magnetically fix it to the pad 5. Further, the slider 12 is connected to the pad 5 by screws, and the magnet 22 is locked into the bottom of the height equalization block 21 by screws. The assembled height equalization support assembly 2 is placed flat on top of the pad 5. By setting the magnet 22, the position of the height equalization block 21 on the slider 12 (pad 5) can be freely adjusted to achieve self-positioning, further meeting the need for rapid positioning of the lead screw 4 to be straightened.
[0038] In addition, a limiting block 6 is provided at each end of the slide rail 11 along its length to prevent the slider 12 from disengaging from the slide rail 11. The screw straightening machine also includes a worktable 7 and a support 8; the sliding adjustment assembly 1 is installed on the table surface of the worktable 7, and the downward straightening mechanism 3 is installed on the top side of the worktable 7 via the support 8.
[0039] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model. Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the utility model and are not intended to limit the implementation of this utility model. For those skilled in the art, various obvious changes, readjustments, and substitutions can be made without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.
Claims
1. A general-purpose screw straightening machine, characterized in that, The device includes a sliding adjustment assembly, two equal-height support assemblies separately mounted on the sliding adjustment assembly, and a pressing straightening mechanism positioned above and between the two equal-height support assemblies. The two equal-height support assemblies support and position the two ends of the lead screw to be straightened. The pressing straightening mechanism includes a pressure head, a rotary pressing drive assembly for driving the pressure head downward, and a bearing positioned between the pressure head and the rotary pressing drive assembly. The inner ring of the bearing is connected to the rotary pressing drive assembly, and the outer ring of the bearing is connected to the pressure head. The inner ring of the bearing is driven by the rotary pressing drive assembly to rotate relative to the outer ring of the bearing.
2. The universal screw straightening machine according to claim 1, characterized in that, The rotary pressing drive assembly includes a pressing screw arranged vertically, a screw nut connected to the middle of the pressing screw, and a manual operating frame located at the upper end of the pressing screw; the manual operating frame is used to rotate to drive the pressing screw to spirally rise and fall along the screw nut.
3. The universal screw straightening machine according to claim 1, characterized in that, The equal-height support assembly includes equal-height blocks and multiple magnets spaced apart and embedded in the bottom of the equal-height blocks; the top of the equal-height blocks has a V-shaped groove for accommodating the lead screw to be straightened.
4. The universal lead screw straightening machine according to claim 3, characterized in that, The sliding adjustment assembly includes at least one slide rail and two sliders disposed on each slide rail; the top of each slider on the same slide rail is connected to a height-equal support assembly.
5. The universal lead screw straightening machine according to claim 4, characterized in that, A pad is also provided between the height-equal support component and the slider; the magnet is used to magnetically fix it to the pad.
6. The universal lead screw straightening machine according to claim 4, characterized in that, A limiting block is provided at each end of the slide rail along its length to prevent the slider from detaching from the slide rail.
7. The universal screw straightening machine according to claim 1, characterized in that, The screw straightening machine also includes a worktable and a support; the sliding adjustment component is installed on the worktable surface, and the downward straightening mechanism is installed on the top side of the worktable via the support.