Automatic centering device of stem shrinking machine for fastener production
By designing an automatic centering device, the problems of inaccurate centering and insufficient stability in the stalk shortening machine were solved, enabling fasteners to be quickly and accurately centered and securely clamped, thereby improving production efficiency and product quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-23
- Publication Date
- 2026-03-20
AI Technical Summary
Existing tube shortening machines lack efficient automatic centering devices, resulting in low production efficiency and inconsistent centering accuracy of round tube fasteners. Furthermore, the lack of a stable structure leads to vibration and equipment wear, affecting product quality and equipment lifespan.
An automatic centering device including a positioning component and a clamping and holding component was designed. It uses a base, rectangular plate, movable frame, spring and other structures to quickly position and clamp fasteners. It achieves stable clamping through a rotating shaft, transmission shaft, clamping wheel and other means to avoid vibration.
It enables fasteners to be quickly and accurately aligned, improving production efficiency, ensuring stability during the shrinkage process, and reducing defect rates and equipment wear.
Smart Images
Figure CN224010834U_ABST
Abstract
Description
Technical Field
[0001] The embodiments disclosed herein relate to the technical field of fastener manufacturing, and more specifically, to an automatic centering device for a fastener production clamping machine. Background Technology
[0002] In the fastener manufacturing industry, round tube fasteners are key connecting components widely used in construction, machinery manufacturing, automotive industry, and many other sectors, making their production quality and efficiency a major concern. Tube reduction machines are crucial equipment in the production process of round tube fasteners, used to reduce the diameter of specific parts of round tubes to meet different assembly requirements. However, current tube reduction machines, due to the lack of efficient automatic centering devices, have revealed many serious problems that severely restrict production quality and efficiency in actual operation.
[0003] In the production process of round tube fasteners, precise alignment is the primary prerequisite for ensuring the successful implementation of the tube reduction process. In traditional operations, workers rely mainly on experience and simple measuring tools to position the round tubes. This method is not only time-consuming, but the alignment accuracy also depends entirely on manual skill, making consistency difficult to guarantee. With a wide variety of round tube diameters, manual alignment requires frequent adjustments, making it difficult to quickly find the center position and achieve precise alignment in the face of complex and diverse diameter variations. This results in a significant waste of production time in the preliminary preparation stage, greatly reducing overall production efficiency and making it difficult to keep pace with modern large-scale, high-efficiency production.
[0004] Furthermore, the stability of the round tube fasteners is crucial during the operation of the tube reduction machine. Due to the lack of reliable stabilizing structures in existing equipment, the strong extrusion force during tube reduction causes vibration in unstable tube fasteners. This vibration leads to displacement of the tube during the reduction process, resulting in large deviations in the tube diameter after reduction, inconsistent product quality, and a significant increase in the defect rate. On the other hand, continuous vibration also causes additional wear and tear on the tube reduction machine itself, shortening its lifespan and increasing maintenance costs. Moreover, the production noise generated by the vibration negatively impacts the working environment and harms the physical and mental health of workers. Therefore, developing a dedicated automatic centering device for tube reduction machines that can achieve rapid and accurate centering of the round tube fasteners while ensuring their stability and eliminating vibration during the reduction process has become a critical technical challenge urgently needing to be solved in the fastener manufacturing industry. This has significant practical implications for improving product quality, increasing production efficiency, and reducing production costs. Utility Model Content
[0005] To overcome the above-mentioned defects, the embodiments of this disclosure provide an automatic centering device for a fastener production tube shrinking machine, which solves the technical problems in the prior art where there are many specifications of round pipe diameters, and frequent adjustments are required when manually centering. In the face of complex and diverse pipe diameter changes, it is difficult to quickly find the center position and achieve accurate centering. In addition, the existing equipment lacks a reliable and stable structure, and the strong extrusion force during tube shrinking operation will cause the unstable round pipe fasteners to vibrate.
[0006] According to one aspect, at least one embodiment of this disclosure provides an automatic centering device for a fastener production thread-shrinking machine, comprising:
[0007] A base plate and a platform, wherein the platform is fixed to the base plate;
[0008] A positioning component, wherein the positioning component is disposed at both ends of the platform surface;
[0009] The base frame and the drive motor are provided, wherein the base frame is fixed to the bottom surface of the base plate and the drive motor is disposed on the bottom surface of the base frame;
[0010] A clamping and retaining assembly is disposed on the platform and the base frame;
[0011] The positioning component includes a pair of bases, which are fixed at both ends of the platform surface. A pair of rectangular plates are provided at both ends of the platform surface, and a movable frame is movably connected inside the rectangular plates.
[0012] As a further technical solution, a side frame is fixedly connected to one end of the movable frame, and a pair of springs are fitted on the movable frame. The upper end of the side frame is bent outward, and the bent part of the upper end of the side frame has an arc-shaped transition structure.
[0013] As a further technical solution, the clamping and retaining assembly includes a rotating shaft, which is rotatably connected inside the platform. Both ends of the rotating shaft are provided with external thread layers, and the surface of the platform is provided with a through-hole.
[0014] As a further technical solution, a drive shaft is rotatably connected to the base frame, and a first gear is provided on one end of the drive shaft and the rotating shaft, and a second gear is provided on one end of the drive shaft and the output end of the drive motor.
[0015] As a further technical solution, a pair of round rods are movably connected to both sides of the platform. One end of each round rod is connected to a movable frame, and an internal threaded block is provided on the movable frame. The internal threaded block is connected to the external threaded layer through a threaded engagement.
[0016] As a further technical solution, clamping wheels are rotatably connected to both ends of the mobile frame, and a pair of telescopic cylinders are provided on both sides of the platform. The output end of the telescopic cylinder is provided with a plug, and the plug is inserted into the side end of the mobile frame.
[0017] As a further technical solution, the external threaded layers at both ends of the rotating shaft have opposite thread directions.
[0018] As a further technical solution, a pair of auxiliary wheels are rotatably connected to one end surface of the platform.
[0019] As a further technical solution, the insert block has an overall conical structure.
[0020] As a further technical solution, the surface of the clamping wheel is an arc-shaped concave structure, and the concave part of the base surface has the same curvature as the concave part of the clamping wheel surface.
[0021] The beneficial effects of the embodiments disclosed herein are as follows:
[0022] 1. In this disclosure, a positioning component is provided. Through the interaction of the base, rectangular plate, movable frame, side frame and spring, the position of the fastener can be quickly positioned and clamped by elastic force, which will not lock the fastener, save a lot of alignment time and improve production efficiency.
[0023] 2. In this disclosure, a clamping and retaining assembly is provided. Through the interaction of structures such as the rotating shaft, the transmission shaft, the first gear, the moving frame, the internal thread block, and the clamping wheel, the fastener can be further clamped. The clamping wheel clamps the fastener in the middle, so that the fastener will not vibrate during the process of entering the shrinking machine and will continue to maintain a stable state, thus improving stability. Attached Figure Description
[0024] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments of this disclosure will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this disclosure and these drawings without any creative effort.
[0025] Figure 1 This is a schematic diagram of a structure in one embodiment of the present disclosure;
[0026] Figure 2 This is an isometric drawing of the present disclosure;
[0027] Figure 3 This is a cross-sectional view of the present disclosure;
[0028] Figure 4This is another sectional view of the present disclosure;
[0029] In the diagram: 1. Base plate; 2. Platform; 3. Base frame; 4. Drive motor; 5. Positioning assembly; 5-1. Base; 5-2. Rectangular plate; 5-3. Movable frame; 5-4. Side frame; 5-5. Spring; 6. Clamping and retaining assembly; 6-1. Rotating shaft; 6-2. External thread layer; 6-3. Through port; 6-4. Transmission shaft; 6-5. First gear; 6-6. Second gear; 6-7. Round rod; 6-8. Movable frame; 6-9. Internal thread block; 6-10. Clamping wheel; 6-11. Telescopic cylinder; 6-12. Insert block; 7. Auxiliary wheel. Detailed Implementation
[0030] The present disclosure 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 disclosure and are not intended to limit the scope of the disclosure.
[0031] To keep the drawings concise, each drawing only schematically shows the parts relevant to the disclosure; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."
[0032] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure based on the specific circumstances.
[0033] In this disclosure, unless otherwise expressly 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.
[0034] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to 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 disclosure.
[0035] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0036] like Figures 1-4 As shown, it illustrates an automatic centering device for a fastener production spindle retraction machine according to an embodiment of the present disclosure, comprising:
[0037] The base plate 1 and the platform 2 are fixed on the base plate 1;
[0038] Positioning component 5 is disposed at both ends of the surface of platform 2;
[0039] The base frame 3 and the drive motor 4 are fixed to the bottom surface of the base plate 1, and the drive motor 4 is set on the bottom surface of the base frame 3.
[0040] Clamping and retaining assembly 6 is mounted on platform 2 and base frame 3;
[0041] The positioning component 5 includes a pair of bases 5-1, which are fixed to both ends of the surface of the platform 2. A pair of rectangular plates 5-2 are provided at both ends of the surface of the platform 2. A movable frame 5-3 is movably connected inside the rectangular plate 5-2. A side frame 5-4 is fixedly connected to one end of the movable frame 5-3. A pair of springs 5-5 are installed on the movable frame 5-3. The upper end of the side frame 5-4 is bent outward, and the bent part of the upper end of the side frame 5-4 has an arc-shaped transition structure.
[0042] In some examples, a positioning component 5 is designed to enable the fastener to be quickly centered. A base 5-1 is provided at both ends of the surface of the platform 2. A rectangular plate 5-2 is provided on both sides of the base 5-1. A movable frame 5-3 is movably fitted inside the rectangular plate 5-2 and connected to a spring 5-5. A side frame 5-4 is provided at one end of the movable frame 5-3. The spring 5-5 can make the side frame 5-4 elastic. The two side frames 5-4 can quickly center the fastener. The upper end of the side frame 5-4 has an outward tilting structure to facilitate the insertion of the fastener.
[0043] like Figures 1-4As shown, this embodiment proposes a clamping and retaining assembly 6, which includes a rotating shaft 6-1 rotatably connected to the platform 2. Both ends of the rotating shaft 6-1 have external thread layers 6-2. The surface of the platform 2 has a through-hole 6-3. A drive shaft 6-4 is rotatably connected to the base frame 3. A first gear 6-5 is provided on one end of the drive shaft 6-4 and on the rotating shaft 6-1, and a second gear 6-6 is provided on one end of the drive shaft 6-4 and on the output end of the drive motor 4. Both sides of the platform 2 are movable... The moving set is connected to a pair of round rods 6-7. One end of the round rods 6-7 is connected to a movable frame 6-8. The movable frame 6-8 is provided with an internal thread block 6-9. The internal thread block 6-9 is connected to the external thread layer 6-2 by a threaded engagement. Both ends of the movable frame 6-8 are rotatably connected with clamping wheels 6-10. Both sides of the platform 2 are provided with a pair of telescopic cylinders 6-11. The output end of the telescopic cylinder 6-11 is provided with a plug 6-12. The plug 6-12 is inserted into the side end face of the movable frame 6-8.
[0044] In some examples, to ensure the stable entry of the clamping pipe fastener into the pipe shrinking machine, a clamping and holding assembly 6 is designed. A rotating shaft 6-1 is rotatably connected inside the platform 2, with external threads 6-2 at both ends. An opening 6-3 is provided on the surface of the platform 2. A drive shaft 6-4 is rotatably connected inside the base frame 3. One end of the drive shaft 6-4 and the rotating shaft 6-1 are both equipped with a first gear 6-5, which can drive the rotating shaft 6-1 to rotate. The other end of the drive shaft 6-4 and the output end of the drive motor 4 are both equipped with a second gear 6-6, which can drive the rotating shaft 6-1 to rotate via the drive motor 4. Both sides of the platform 2... The active kit includes a round rod 6-7, one end of which is fixedly connected to a movable frame 6-8. The movable frame 6-8 is equipped with an internal threaded block 6-9, which is connected to the external threaded layer 6-2 via a threaded engagement. When the rotating shaft 6-1 rotates, it can drive the movable frame 6-8 to move. Both ends of the movable frame 6-8 are rotatably connected to clamping wheels 6-10, which are used to clamp the pipe fasteners in the middle and move with the pipe. Two telescopic cylinders 6-11 are provided on both sides of the platform 2. The output end of the telescopic cylinder 6-11 is equipped with an insert block 6-12, which is inserted into the movable frame 6-8 to enhance the stability of the movable frame 6-8 and prevent vibration.
[0045] For example, such as Figure 1 As shown, the external thread layers 6-2 at both ends of the rotating shaft 6-1 have opposite thread directions.
[0046] In some examples, by using opposite thread directions, the two moving frames 6-8 can be controlled to move synchronously toward the center.
[0047] For example, such as Figure 1 As shown, a pair of auxiliary wheels 7 are rotatably connected to one end surface of platform 2.
[0048] In some examples, by setting the auxiliary wheel 7, the clamping position of the pipe fastener can be extended, improving stability.
[0049] For example, such as Figure 4 As shown, the insert 6-12 has an overall conical structure.
[0050] In some examples, the conical structure allows the insert 6-12 to be inserted more accurately into the movable frame 6-8.
[0051] For example, such as Figure 3 As shown, the surface of clamping wheel 6-10 is an arc-shaped concave structure, and the surface of base 5-1 has the same arc as the concave part of the surface of clamping wheel 6-10.
[0052] In some examples, the base 5-1 and clamping wheel 6-10 can fit perfectly against the surface of the pipe fastener through the concave structural surface, resulting in a stronger stabilizing effect on the pipe.
[0053] When feeding is required, insert the tubular fastener vertically downward between the two side frames 5-4. The side frames 5-4 move to both sides through the movable frame 5-3 to open the gap. After fitting against the base 5-1, the side frames 5-4 are pushed back to their original position by the elastic force of the spring 5-5 and clamp the fastener. Then, start the drive motor 4 to control the rotating shaft 6-1 to rotate, drive the two movable frames 6-8 to move towards the center at the same time to clamp the fastener, and then push the fastener into the shrinking machine.
[0054] It should be noted that the above embodiments are only used to illustrate the technical solutions of this disclosure and are not intended to limit it. Although this disclosure has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this disclosure without departing from the spirit and scope of the technical solutions of this disclosure, and all such modifications and substitutions should be covered within the scope of the claims of this disclosure.
Claims
1. An automatic centering device for a fastener production necking machine, characterized in that, include: A base plate (1) and a platform (2), wherein the platform (2) is fixed on the base plate (1); Positioning components (5) are disposed at both ends of the surface of the platform (2); The base frame (3) and the drive motor (4) are provided. The base frame (3) is fixed to the bottom surface of the base plate (1), and the drive motor (4) is provided on the bottom surface of the base frame (3). A clamping and retaining assembly (6) is disposed on the platform (2) and the base frame (3); The positioning component (5) includes a pair of bases (5-1), which are fixed at both ends of the surface of the platform (2). A pair of rectangular plates (5-2) are provided at both ends of the surface of the platform (2), and a movable frame (5-3) is movably connected inside the rectangular plates (5-2).
2. The automatic centering device for a fastener production spindle retraction machine according to claim 1, characterized in that, One end of the movable frame (5-3) is fixedly connected to a side frame (5-4). A pair of springs (5-5) are fitted on the movable frame (5-3). The upper end of the side frame (5-4) is bent outward, and the bent part of the upper end of the side frame (5-4) has an arc-shaped transition structure.
3. The automatic centering device for a fastener production spindle retraction machine according to claim 1, characterized in that, The clamping and retaining assembly (6) includes a rotating shaft (6-1), which is rotatably connected to the platform (2). Both ends of the rotating shaft (6-1) are provided with external thread layers (6-2), and the surface of the platform (2) is provided with a through-hole (6-3).
4. The automatic centering device for a fastener production core-shrinking machine according to claim 3, characterized in that, A drive shaft (6-4) is rotatably connected to the base frame (3). A first gear (6-5) is provided on one end of the drive shaft (6-4) and on the rotating shaft (6-1). A second gear (6-6) is provided on one end of the drive shaft (6-4) and on the output end of the drive motor (4).
5. The automatic centering device for a fastener production spindle retraction machine according to claim 4, characterized in that, The platform (2) has a pair of round rods (6-7) movably connected to both sides. One end of the round rod (6-7) is connected to a movable frame (6-8). The movable frame (6-8) is provided with an internal thread block (6-9). The internal thread block (6-9) is connected to the external thread layer (6-2) by a threaded engagement.
6. The automatic centering device for a fastener production spindle reduction machine according to claim 5, characterized in that, The moving frame (6-8) has clamping wheels (6-10) rotatably connected to both ends of the surface. The platform (2) has a pair of telescopic cylinders (6-11) on both sides of the end face. The output end of the telescopic cylinder (6-11) is provided with a plug (6-12), which is inserted into the side end face of the moving frame (6-8).
7. The automatic centering device for a fastener production spindle retraction machine according to claim 3, characterized in that, The external thread layers (6-2) at both ends of the rotating shaft (6-1) have opposite thread directions.
8. The automatic centering device for a fastener production spindle retraction machine according to claim 1, characterized in that, A pair of auxiliary wheels (7) are rotatably connected to one end surface of the platform (2).
9. The automatic centering device for a fastener production core-shrinking machine according to claim 6, characterized in that, The insert (6-12) has an overall conical structure.
10. The automatic centering device for a fastener production spindle retraction machine according to claim 6, characterized in that, The surface of the clamping wheel (6-10) is an arc-shaped concave structure, and the surface of the base (5-1) has the same curvature as the concave portion of the surface of the clamping wheel (6-10).