Coil spring clamping jaw with large winding ratio
By designing a coil spring clamp with a large winding ratio and using positioning clamps and transmission components to prevent the clamps from being overtightened, the problem of coil spring end damage in high temperature environments is solved, and stable fixation and quality improvement of the coil spring are achieved.
Patent Information
- Application Number
- CN202422894228.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-26
- Publication Date
- 2025-10-10
- Estimated Expiration
- 2034-11-26
AI Technical Summary
In a high temperature environment, workers may easily make mistakes when adjusting the coil spring claws, resulting in damage to the coil spring end.
A coil spring clamp with a large winding ratio is designed. By setting a positioning clamp, a movable rod, a sliding rod and a transmission component, the clamp is prevented from being too tight. The stability of the coil spring is ensured by using a rotating plate and a vertical rod, thereby achieving stable fixation of coil springs of different specifications.
It effectively prevents the clamping claws from being overtightened, improves the quality and stability of the coil spring, and avoids damage to the coil spring end.
Smart Images
Figure CN223419370U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of coil spring fixing tools, in particular to a coil spring clamping claw with a large winding ratio. Background Art
[0002] During the forming process of hot-wound cylindrical helical compression springs, the spring tip is firmly controlled under the clamping claw. However, since the spring bar itself is heated at a temperature of nearly 1000°C, the part pressed by the clamping claw cannot rotate with the spring winding machine bed to adjust the deflection angle of the tip, forming a straight line segment.
[0003] After searching, the Chinese publication number is: CN 217072060 U, which discloses a coil spring clamp that meets the requirements of the spring fitting surface. The key points of its technical solution are that it includes a bite body, one side of the bite body is a plane, and a clamping ball tip is detachably connected to the bite body. The clamping ball tip is arranged on the plane of the bite body. The utility model has the advantages of avoiding deformation of the end tip and firm clamping.
[0004] In general, there are many specifications of core shafts, which correspond to spring designs of different specifications. In order to save money, the value of the claw is generally set to the maximum during design, and the coil springs of different specifications are fixed by adjusting the claw. However, during the process of adjusting the claw, the coil spring is in a high temperature state. The heat and high temperature environment can easily cause workers to make mistakes in adjusting the claw, resulting in the claw clamping the coil spring too tightly, causing damage to the end of the coil spring. In view of this, we propose a coil spring claw with a large winding ratio. Utility Model Content
[0005] The purpose of the utility model is to provide a coil spring clamping claw with a large winding ratio, which solves the problem that workers are prone to make mistakes when adjusting the clamping claw in a high temperature or hot environment, resulting in damage to the coil spring end.
[0006] To achieve the above objectives, the present invention provides the following technical solutions:
[0007] A large winding ratio coil spring clamp comprises a core shaft body, a clamping jaw notch is provided on the right surface of the core shaft body, a positioning mechanism is provided on the inner surface of the clamping jaw notch, the positioning mechanism comprises a positioning clamping jaw, the positioning clamping jaw is slidingly connected to the inner surface of the clamping jaw notch, the lower surface of the positioning clamping jaw is rotatably connected to a threaded rod, the threaded rod passes through the core shaft body and is threadedly connected to the core shaft body, the right surface of the core shaft body is fixedly connected to an L-shaped connecting plate, the threaded rod passes through the L-shaped connecting plate and is threadedly connected to the L-shaped connecting plate, the outer arc surface of the threaded rod is rotatably connected to a fixing ring, the outer arc surface of the fixing ring is provided with a clamping groove in a circumferential array, the inner surface of the clamping groove is slidably connected to a clamping block, and the clamping block is slidably connected to the lower surface of the L-shaped connecting plate.
[0008] Preferably, a sliding rod passes through the upper surface of the positioning claw and is slidably connected to the sliding rod, the upper surface of the positioning claw is slidably connected to movable rod 1, and the right surface of the L-shaped connecting plate is slidably connected to movable rod 2.
[0009] Preferably, the sliding rod is hinged to one end of bracket one, the movable rod one is hinged to the other end of bracket one, the movable rod one is hinged to one end of bracket two, the movable rod two is hinged to the other end of bracket two, the movable rod two is hinged to one end of bracket three, and the blocking block is hinged to the other end of bracket three.
[0010] Preferably, a sliding groove is provided on the upper surface of the positioning claw, and a movable rod 1 is slidably connected to the inner surface of the sliding groove.
[0011] Preferably, a groove is provided on the inner surface of the positioning claw, and an auxiliary mechanism is provided on the inner surface of the groove. The auxiliary mechanism includes a rotating plate, and the rotating plate is rotatably connected to the inner surface of the groove. A vertical rod passes through the inner surface of the groove and is slidably connected to the vertical rod. The rotating plate is hinged to one end of the bracket four, and the vertical rod is hinged to the other end of the bracket four.
[0012] Preferably, the grooves and the auxiliary mechanisms are provided in two groups and are symmetrically arranged with the center line of the positioning claws as the axis of symmetry.
[0013] Preferably, a mounting ring is fixedly connected to the left surface of the core shaft body, and the lower surface of the rotating plate is rounded.
[0014] By means of the above technical solution, the present invention provides a large winding ratio spring claw. It has at least the following beneficial effects:
[0015] (1), the utility model discloses a positioning dog, movable rod one, slide rod, movable rod two and multiple transmission parts are set up, after the contact of slide rod and volute spring, through the extrusion of volute spring, after moving upwards, through the connection of multiple support transmission parts, drive the clamping block to move to the slot, limit the fixed ring, make the threaded rod unable to rotate, thereby effectively prevent the positioning dog from being too tight to clamp the volute spring, improve the quality of volute spring.
[0016] (2), the utility model discloses a rotating plate, vertical rod and support four are set up, after the contact of positioning dog and the outer arc surface of volute spring, through the rotating plate, guarantee that volute spring will not move to both sides, thereby effectively guarantee the stability of volute spring. BRIEF DESCRIPTION OF DRAWINGS
[0017] The drawings described herein are used to provide further understanding of the utility model and constitute a part of this application:
[0018] Figure 1 It is the whole structure schematic diagram of the utility model;
[0019] Figure 2 It is the overhead structure schematic diagram of the positioning dog of the utility model;
[0020] Figure 3 It is the bottom structure schematic diagram of the positioning dog of the utility model;
[0021] Figure 4 It is the Figure 3 A part structure enlarged schematic diagram of the utility model.
[0022] In the drawing: 1, mandrel body;2, dog slot;3, positioning mechanism;31, positioning dog;32, threaded rod;33, L-shaped connecting plate;34, fixed ring;35, clamping groove;36, clamping block;37, slide rod;38, movable rod one;39, movable rod two;310, support one;311, support two;312, support three;313, sliding groove;4, recess;5, auxiliary mechanism;51, rotating plate;52, vertical rod;53, support four;6, mounting lifting ring. DETAILED DESCRIPTION
[0023] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.
[0024] Embodiment one
[0025] Please refer to Figures 1-4The utility model provides a large winding ratio coil spring claw, including a core shaft body 1, a claw notch 2 is opened on the right surface of the core shaft body 1, and a positioning mechanism 3 is set on the inner surface of the claw notch 2. The positioning mechanism 3 includes a positioning claw 31, and the positioning claw 31 is slidably connected to the inner surface of the claw notch 2. A gap of 1.5MM is left between the claw notch 2 and the positioning claw 31. Through this setting, it can effectively ensure that the claw notch 2 limits the positioning claw 31, thereby effectively ensuring that the positioning claw 31 slides stably in the claw notch 2. The lower surface of the positioning claw 31 is rotatably connected to the threaded rod 32, and the threaded rod 3 2 penetrates the core shaft body 1 and is threadedly connected to the core shaft body 1. An L-shaped connecting plate 33 is fixedly connected to the right surface of the core shaft body 1. The threaded rod 32 penetrates the L-shaped connecting plate 33 and is threadedly connected to the L-shaped connecting plate 33. The outer arc surface of the threaded rod 32 is rotatably connected to the fixing ring 34. The outer arc surface of the fixing ring 34 is provided with a card slot 35 in a circumferential array. The card slot 35 is triangular in shape as a whole. The side of the card block 36 close to the card slot 35 is also triangular. Through this arrangement, when the card block 36 moves to the card slot 35, the threaded rod 32 cannot rotate due to the limitation of the fixing ring 34, thereby ensuring that the positioning claw 31 will not be excessively squeezed. The coil spring is formed by sliding a block 36 on the inner surface of the card slot 35, and the block 36 is slidably connected to the lower surface of the L-shaped connecting plate 33. The upper surface of the positioning claw 31 is penetrated by a slide bar 37 and is slidably connected to the slide bar 37. The upper surface of the positioning claw 31 is slidably connected to a movable rod 1 38, and the right surface of the L-shaped connecting plate 33 is slidably connected to a movable rod 2 39. The slide bar 37 is hinged to one end of the bracket 1 310, and the movable rod 1 38 is hinged to the other end of the bracket 1 310. The movable rod 1 38 is hinged to one end of the bracket 2 311, and the movable rod 2 39 is hinged to the other end of the bracket 2 311. Then, movable rod 2 39 is hinged to one end of bracket 312, and block 36 is hinged to the other end of bracket 312. A slide groove 313 is provided on the upper surface of the positioning claw 31. The slide groove 313 is used to limit movable rod 1 38 to ensure that movable rod 1 38 can slide left and right stably. At the same time, a spring is provided on the inner surface of the slide groove 313. One end of the spring is fixed to movable rod 1 38, and the other end is fixed to the inner surface of the slide groove 313. Through this arrangement, when the slide rod 37 is not in contact with the coil spring, it will return to its place by elastic force, so that the entire device can be slidably connected to the inner surface of the slide groove 313 with movable rod 1 38.
[0026] In this embodiment, by providing the positioning claw 31, movable rod 1 38, slide rod 37, movable rod 2 39 and multiple transmission components, after the slide rod 37 contacts the coil spring, it is squeezed by the coil spring and moves upward, and then, through the connection of multiple bracket transmission components, the clamping block 36 is driven to move into the clamping groove 35, limiting the fixing ring 34 and making the threaded rod 32 unable to rotate, thereby effectively preventing the positioning claw 31 from clamping the coil spring too tightly and improving the quality of the coil spring.
[0027] Example 2
[0028] See also Figures 1-4 On the basis of embodiment 1, the present invention provides a technical solution: preferably, a groove 4 is provided on the inner surface of the positioning claw 31, and an auxiliary mechanism 5 is provided on the inner surface of the groove 4. The auxiliary mechanism 5 includes a rotating plate 51, and the rotating plate 51 is rotatably connected to the inner surface of the groove 4. A vertical rod 52 runs through the inner surface of the groove 4 and is slidably connected to the vertical rod 52. The rotating plate 51 is hinged to one end of the bracket 4 53, and the vertical rod 52 is hinged to the other end of the bracket 4 53. The groove 4 and the auxiliary mechanism 5 are both provided with two groups and are symmetrically arranged with the center line of the positioning claw 31 as the symmetry axis. The left surface of the shaft body 1 is fixedly connected with a mounting ring 6, and the lower surface of the rotating plate 51 is set with rounded corners. Through the rounded corner setting of the rotating plate 51, after the positioning claw 31 moves downward through the threaded rod 32, it will contact the core shaft body 1 through the rounded surface of the rotating plate 51, and the rotating plate 51 will expand toward the groove 4, fixing the coil spring between the two groups of rotating plates 51, thereby realizing the fixing function. The outer arc surface of the vertical rod 52 is sleeved with a spring and fixed to one end of the spring. At the same time, the inner surface of the groove 4 is fixed to the other end of the spring. Through the spring, the rotating plate 51 has a recovery function.
[0029] In this embodiment, by providing a rotating plate 51, a vertical rod 52 and a bracket 53, after the positioning claw 31 contacts the outer arc surface of the coil spring, the rotating plate 51 ensures that the coil spring will not move to both sides, thereby effectively ensuring the stability of the coil spring.
[0030] Working principle: when it is necessary to position coil springs of different specifications, the worker rotates the threaded rod 32 clockwise with a wrench, so that the threaded rod 32 drives the positioning claw 31 to move upward, so that a space for placing the coil spring can be left between the positioning claw 31 and the core shaft body 1. After the coil spring is placed on the core shaft body 1, the threaded rod 32 is rotated counterclockwise to drive the positioning claw 31 to move downward and contact the coil spring. Before the positioning claw 31 contacts the coil spring, the slide rod 37 will first contact the coil spring. After the coil spring presses against the slide rod 37, the slide rod 37 moves upward and drives the movable rod 1 38 to move to the right through the bracket 1 310. The movable rod 1 38 passes through the bracket 2 3 11 drives the movable rod 2 39 to move downward. After the movable rod 2 39 drives the block 36 to move toward the fixed ring 34 through the bracket 312, the block 36 enters the slot 35. The fixed ring 34 and the threaded rod 32 are limited at the same time, and the worker cannot continue to rotate the threaded rod 32. At this time, the positioning claw 31 firmly clamps the coil spring. At the same time, after the positioning claw 31 moves downward, the rounded surface of the rotating plate 51 contacts the core shaft body 1. After contacting the core shaft body 1, it will expand outward from the groove 4, and at the same time drive the vertical rod 52 to shrink into the groove 4 through the bracket 4 53, and compress the spring, so that the coil spring cannot move, thereby limiting the coil spring.
[0031] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.
[0032] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A large winding ratio coil spring pawl, comprising a core shaft body (1), characterized in that: The right surface of the core shaft body (1) is provided with a claw notch (2), the inner surface of the claw notch (2) is provided with a positioning mechanism (3), the positioning mechanism (3) comprises a positioning claw (31), the positioning claw (31) is slidably connected to the inner surface of the claw notch (2), the lower surface of the positioning claw (31) is rotatably connected to a threaded rod (32), the threaded rod (32) passes through the core shaft body (1) and is threadedly connected to the core shaft body (1), the core shaft body (1) The right surface of the L-shaped connecting plate (33) is fixedly connected, the threaded rod (32) passes through the L-shaped connecting plate (33) and is threadedly connected to the L-shaped connecting plate (33), the outer arc surface of the threaded rod (32) is rotatably connected to a fixing ring (34), the outer arc surface of the fixing ring (34) is provided with a card slot (35) in a circumferential array, the inner surface of the card slot (35) is slidably connected to a card block (36), and the card block (36) is slidably connected to the lower surface of the L-shaped connecting plate (33).
2. The large winding ratio coil spring clamp according to claim 1, characterized in that: The upper surface of the positioning claw (31) is penetrated by a slide rod (37) and is slidably connected to the slide rod (37), the upper surface of the positioning claw (31) is slidably connected to a movable rod 1 (38), and the right surface of the L-shaped connecting plate (33) is slidably connected to a movable rod 2 (39).
3. The large winding ratio coil spring clamp according to claim 2, characterized in that: The sliding rod (37) is hinged to one end of the bracket one (310), the movable rod one (38) is hinged to the other end of the bracket one (310), the movable rod one (38) is hinged to one end of the bracket two (311), the movable rod two (39) is hinged to the other end of the bracket two (311), the movable rod two (39) is hinged to one end of the bracket three (312), and the block (36) is hinged to the other end of the bracket three (312).
4. The large winding ratio coil spring clamp according to claim 3, characterized in that: A sliding groove (313) is provided on the upper surface of the positioning claw (31), and a movable rod (38) is slidably connected to the inner surface of the sliding groove (313).
5. The large winding ratio coil spring clamp according to claim 4, characterized in that: The inner surface of the positioning claw (31) is provided with a groove (4), and the inner surface of the groove (4) is provided with an auxiliary mechanism (5), and the auxiliary mechanism (5) includes a rotating plate (51), and the rotating plate (51) is rotatably connected to the inner surface of the groove (4), and a vertical rod (52) passes through the inner surface of the groove (4) and is slidably connected to the vertical rod (52), and the rotating plate (51) is hinged to one end of the bracket four (53), and the vertical rod (52) is hinged to the other end of the bracket four (53).
6. The large winding ratio coil spring clamp according to claim 5, characterized in that: The grooves (4) and the auxiliary mechanisms (5) are both provided in two groups and are symmetrically arranged with the center line of the positioning claws (31) as the axis of symmetry.
7. The large winding ratio coil spring clamp according to claim 6, characterized in that: The left surface of the core shaft body (1) is fixedly connected with a mounting ring (6), and the lower surface of the rotating plate (51) is rounded.
Citation Information
Patent Citations
Coil spring clamping jaw capable of meeting requirements of spring binding face
CN217072060U