Hexagonal expansion nut production equipment
Patent Information
- Application Number
- CN202522307692.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-31
- Publication Date
- 2026-10-09
- Estimated Expiration
- 2035-10-31
AI Technical Summary
[0003]本实用新型的目的在于提供一种六角涨铆螺母生产设备，通过设置夹持组件，具体是电机二启动驱动蜗杆旋转，经蜗轮啮合传动至同轴转杆二，带动转盘转动，其表面弧线槽与直线槽构成导向轨迹，滑杆嵌入弧线槽受径向推力沿直线槽滑动，牵引六组对称夹板向心聚拢，精准夹持固定六角涨铆螺母，解决了目前，行业内针对六角涨铆螺母的装夹多采用传统的刚性夹具或人工辅助定位方式，传统刚性夹具通常为单一尺寸定制，当加工不同规格的螺母时，需频繁更换对应夹具，不仅操作繁琐，还会产生大量的夹具更换与调试时间，严重制约了生产流水线的运行效率，而人工辅助定位方式则依赖操作人员的经验判断，难以保证每一个螺母的夹持中心与加工基准完全重合，极易在钻孔等加工过程中出现孔位偏移、垂直度偏差等问题，导致产品报废率升高，难以满足高精度生产的需求的问题
1、本实用新型通过设置夹持组件，具体是电机二启动驱动蜗杆旋转，经蜗轮啮合传动至同轴转杆二，带动转盘转动；其表面弧线槽与直线槽构成导向轨迹，滑杆嵌入弧线槽受径向推力沿直线槽滑动，牵引六组对称夹板向心聚拢，精准夹持固定六角涨铆螺母，该结构适配多尺寸螺母，契合侧壁确保加工定位精度，实现快速装夹提升效率。
Smart Images
Figure CN224825213U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of production equipment technology, and in particular relates to a production equipment for hexagonal expansion rivet nuts. Background Technology
[0002] In the mass production of hexagonal expansion nuts, key processes such as drilling and tapping place stringent requirements on the positioning accuracy and clamping efficiency of the nuts. Due to their structural characteristics, hexagonal expansion nuts have a hexagonal outline on their outer perimeter, and different specifications of products have different dimensional parameters such as the distance between opposite sides and the thickness, which poses a challenge to the versatility and adaptability of clamping equipment. Currently, the industry mostly uses traditional rigid fixtures or manual positioning methods for clamping hexagonal expansion rivet nuts. Traditional rigid fixtures are usually customized for a single size. When processing nuts of different specifications, it is necessary to frequently change the corresponding fixtures. This is not only cumbersome to operate, but also generates a lot of time for fixture changes and adjustments, which seriously restricts the operating efficiency of the production line. Manual positioning methods rely on the operator's experience and judgment, which makes it difficult to ensure that the clamping center of each nut is completely aligned with the processing datum. This can easily lead to problems such as hole position offset and perpendicularity deviation during drilling and other processing, resulting in a high product scrap rate and making it difficult to meet the requirements of high-precision production. Therefore, a hexagonal expansion rivet nut production equipment is proposed. Utility Model Content
[0003] The purpose of this invention is to provide a production equipment for hexagonal expansion rivets. By setting up a clamping assembly, specifically, a second motor drives a worm gear to rotate, which in turn transmits power to a coaxial rotating rod, causing the turntable to rotate. The surface of the turntable has arc grooves and straight grooves forming a guide trajectory. A sliding rod, embedded in the arc groove, slides along the straight groove under radial thrust, pulling six sets of symmetrical clamping plates towards the center, precisely clamping and fixing the hexagonal expansion rivet. This solves the problem that currently, the industry mostly uses traditional rigid clamps or manual auxiliary positioning methods for clamping hexagonal expansion rivets. Traditional rigid clamps are usually customized to a single size, requiring frequent clamp changes when processing nuts of different specifications. This is not only cumbersome but also generates a significant amount of time for clamp changes and adjustments, severely restricting the efficiency of the production line. Manual auxiliary positioning relies on the operator's experience and judgment, making it difficult to ensure that the clamping center of each nut is completely aligned with the processing datum. This easily leads to problems such as hole position offset and perpendicularity deviation during drilling and other processing, resulting in a high product scrap rate and failing to meet the requirements of high-precision production.
[0004] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution: This utility model relates to a hexagonal expansion nut production equipment, comprising a workbench and a limiting frame. The workbench serves as the supporting foundation for the entire device, and its top is welded to the bottom of the limiting frame. It also includes a positioning mechanism, which is located at the top and bottom of the workbench. The positioning mechanism is used to clamp and fix nuts of different sizes. The positioning mechanism includes a clamping assembly, which comprises a worm gear and a worm. A rotating rod is welded inside the worm gear, and a turntable is welded to the top of the outer surface of the rotating rod. The top of the turntable has six arc grooves, and the top of the workbench has six straight grooves corresponding to the arc grooves. Six clamping plates are provided on the top of the workbench, and these six clamping plates are located within the inner ring of the limiting frame.
[0005] Furthermore, the positioning mechanism also includes a reinforcement component, which is connected to the limiting frame and is used to provide secondary reinforcement to the fixed nut.
[0006] Furthermore, a protective cover one is welded to the bottom of the workbench, and a protective cover two is welded to the bottom of the protective cover one. The worm gear and worm are disposed inside the cavity of the protective cover two. A motor two is bolted to the front of the protective cover two. The output end of the motor two is connected to the front of the worm through a coupling. The outer surface of the worm gear meshes with the outer surface of the worm. The outer surface of the worm is rotatably connected to the inside edge of the protective cover two. The turntable is disposed inside the cavity of the protective cover one. The rotating rod two penetrates the protective cover two and extends into the cavity of the protective cover one. The outer surface of the rotating rod two is rotatably connected to the protective cover one and the inside of the protective cover two. Each of the six arc grooves has a sliding rod slidably connected inside. Each of the six sliding rods penetrates the arc groove and the straight groove and extends to the top of the workbench. The top of the outer surface of each of the six sliding rods is welded to the inside of the clamping plate. Each of the six clamping plates is L-shaped.
[0007] Furthermore, the reinforcement component includes a support frame welded to the outer ring of the limiting frame. A motor is bolted to the top of the support frame. A gear is disposed inside the cavity of the support frame. The bottom output end of the motor passes through the support frame and is welded to the inside of the gear. A limiting slide rail is welded to the inner wall of the cavity of the limiting frame. A double-sided gear ring is slidably connected to the top of the limiting slide rail. The outer ring of the double-sided gear ring meshes with the outer surface of the gear. Six spur gears are meshed to the top of the double-sided gear ring. A rotating rod is welded inside each of the six spur gears. The outer surface of the six rotating rods rotates within the edge of the limiting frame. The limiting frame cavity is connected by six slide rails welded to its inner wall. Each of the six slide rails has a toothed plate slidably connected inside. The side of each of the six toothed plates away from the slide rails meshes with the outer surface of a spur gear. Each of the six toothed plates has a support sleeve welded to its corresponding side. The inner ring of the worktable has six openings. Each of the six support sleeves passes through the openings and extends to the inner ring of the limiting frame. Each of the six support sleeve cavities has a push rod slidably connected inside. Each of the six push rods has a pressure rod welded to its end away from the support sleeve. Each of the six pressure rods passes through the clamping plate and extends to the inner side. The outer surface of each of the six pressure rods is slidably connected to the inner edge of the clamping plate.
[0008] This utility model has the following beneficial effects: 1. This utility model, through the setting of a clamping assembly, specifically, the second motor drives the worm gear to rotate, which is then transmitted to the coaxial rotating rod second through the worm wheel meshing, driving the turntable to rotate; the arc groove and straight groove on its surface form a guide trajectory, the slide rod is embedded in the arc groove and slides along the straight groove under radial thrust, pulling six sets of symmetrical clamping plates to converge towards the center, accurately clamping and fixing the hexagonal expansion rivet nut. This structure is compatible with nuts of multiple sizes, fits the side wall to ensure processing positioning accuracy, and achieves rapid clamping to improve efficiency.
[0009] 2. This utility model incorporates a reinforcement component, specifically a starting motor. The output gear of the starting motor rotates forward and meshes with the outer teeth of a double-sided gear ring, driving the latter to rotate around the limiting slide rail inside the support frame. The top teeth of the double-sided gear ring synchronously drive the spur gear and the coaxial rotating rod to rotate, and drive the toothed plate to move linearly downward along the slide rail. The toothed plate, in conjunction with the support sleeve and its internal push rod, moves downward synchronously, pushing the pressure rod to fit against the non-machined surface of the hexagonal expansion nut, thus achieving secondary reinforcement and constraint. This effectively prevents the nut from shifting or falling off during processing, ensuring processing quality.
[0010] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description
[0011] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the cross-sectional structure of the workbench of this utility model; Figure 3 This is an exploded view of the clamping assembly of this utility model; Figure 4 This is a schematic diagram of the overall structure of the double-sided gear ring of this utility model; Figure 5 This utility model Figure 4 A magnified structural diagram of A in the middle; Figure 6 This is a schematic diagram of the overall structure of the pressure bar of this utility model.
[0013] The attached diagram lists the components represented by each number as follows: 111. Workbench; 112. Limiting frame; 2. Positioning mechanism; 21. Reinforcing component; 211. Support frame; 212. Double-sided gear ring; 213. Limiting slide rail; 214. Motor 1; 215. Gear; 216. Spur gear; 217. Rotating rod 1; 218. Gear plate; 219. Slide rail; 2110. Support sleeve; 2111. Push rod; 2112. Pressure rod; 22. Clamping component; 221. Protective cover 1; 222. Protective cover 2; 223. Motor 2; 224. Worm gear; 225. Rotating rod 2; 226. Worm; 227. Turntable; 228. Arc groove; 229. Straight groove; 2210. Slide rod; 2211. Clamping plate. Detailed Implementation
[0014] 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.
[0015] Please see Figures 1-6As shown, this utility model is a hexagonal expansion nut production equipment, including a workbench 111 and a limiting frame 112. The workbench 111 serves as the supporting foundation for the entire device, and the top of the workbench 111 is welded to the bottom of the limiting frame 112. It also includes a positioning mechanism 2, which is located at the top and bottom of the workbench 111. The positioning mechanism 2 is used to clamp and fix nuts of different sizes. The positioning mechanism 2 includes a clamping assembly 22, which includes a worm gear 224 and a worm 226. A rotating rod 225 is welded inside the worm gear 224. A turntable 227 is welded to the top of the outer surface of the 25. The top of the turntable 227 has six arc-shaped grooves 228. The top of the worktable 111 has six straight grooves 229 corresponding to the arc-shaped grooves 228. Six clamping plates 2211 are installed on the top of the worktable 111, and are located within the inner ring of the limiting frame 112. The positioning mechanism 2 also includes a reinforcing component 21, which is connected to the limiting frame 112. The reinforcing component 21 is used for secondary reinforcement of the fixed nut. A protective cover 221 is welded to the bottom of the worktable 111. A second protective cover 222 is welded to the bottom of 221. A worm gear 224 and a worm 226 are located inside the cavity of the second protective cover 222. A second motor 223 is bolted to the front of the second protective cover 222. The output end of the second motor 223 is connected to the front of the worm 226 via a coupling. The outer surface of the worm gear 224 meshes with the outer surface of the worm 226. The outer surface of the worm 226 is rotatably connected to the inner edge of the second protective cover 222. A turntable 227 is located inside the cavity of the first protective cover 221. A second rotating rod 225 passes through the second protective cover 222 and extends into the cavity of the first protective cover 221. Inside, the outer surface of the rotating rod 225 is rotatably connected to the protective cover 221 and the interior of the protective cover 222. Each of the six arc grooves 228 has a sliding rod 2210 slidably connected inside. Each of the six sliding rods 2210 passes through the arc grooves 228 and the straight grooves 229 and extends to the top of the worktable 111. The top of the outer surface of each of the six sliding rods 2210 is welded to the interior of the clamping plate 2211. Each of the six clamping plates 2211 is L-shaped. The motor 223 starts and drives the worm gear 226 to rotate. The worm gear 224 meshes and transmits the power to the coaxial rotating rod 225, which in turn drives the turntable 227 to rotate.The surface arc groove 228 and straight groove 229 form a guide trajectory. The slide rod 2210 is embedded in the arc groove 228 and slides along the straight groove 229 under radial thrust, pulling six sets of symmetrical clamping plates 2211 to converge towards the center, accurately clamping and fixing the hexagonal expansion rivet nut. This structure is compatible with nuts of multiple sizes, fits the side wall to ensure machining positioning accuracy, and achieves rapid clamping to improve efficiency. The reinforcing component 21 includes a support frame 211, which is welded to the outer ring of the limiting frame 112. A motor 214 is bolted to the top of the support frame 211. A gear 215 is set inside the cavity of the support frame 211. The bottom output end passes through the support frame 211 and is welded to the inside of the gear 215. A limiting slide rail 213 is welded to the inner wall of the cavity of the limiting frame 112. A double-sided gear ring 212 is slidably connected to the top of the limiting slide rail 213. The outer ring of the double-sided gear ring 212 meshes with the outer surface of the gear 215. Six spur gears 216 are meshed to the top of the double-sided gear ring 212. A rotating rod 217 is welded inside each of the six spur gears 216. The outer surface of the six rotating rods 217 is rotatably connected to the inner edge of the limiting frame 112. Six slide rails 219 are welded to the inner wall of the cavity of the limiting frame 112. A toothed plate is slidably connected inside each of the six slide rails 219. 218, the six toothed plates 218 are all meshed with the outer surface of the spur gear 216 on the side away from the slide rail 219. Support sleeves 2110 are welded to the corresponding side of each of the six toothed plates 218. The inner ring of the worktable 111 has six openings. All six support sleeves 2110 pass through the openings and extend to the inner ring of the limiting frame 112. Push rods 2111 are slidably connected inside the cavities of each of the six support sleeves 2110. Pressure rods 2112 are welded to the ends of the six push rods 2111 away from the support sleeves 2110. All six pressure rods 2112 pass through the clamping plate 2211 and extend to the inner side. The outer surfaces of the six pressure rods 2112 are all... The motor 214 is slidably connected to the inner edge of the clamping plate 2211. When the motor 214 is started, its output gear 215 rotates forward, meshing with the outer teeth of the double-sided gear ring 212, driving the latter to rotate around the inner limit slide rail 213 of the support frame 211. The top teeth of the double-sided gear ring 212 synchronously drive the spur gear 216 and the coaxial rotating rod 217 to rotate, and drive the toothed plate 218 to move linearly downward along the slide rail 219. The toothed plate 218, in conjunction with the support sleeve 2110 and its internal push rod 2111, moves downward synchronously, pushing the pressure rod 2112 to conform to the non-machined surface of the hexagonal expansion nut, achieving secondary reinforcement and constraint, effectively preventing the nut from shifting or falling off during processing, and ensuring processing quality.
[0016] A specific application of this embodiment is as follows: In use, first place the nut inside the cavity of the limiting frame 112, and then start the second motor 223. After the second motor 223 starts, it drives the worm gear 226 connected to it to rotate. Utilizing the meshing transmission characteristics of the worm wheel 224 and the worm gear 226, the power is transmitted to the worm wheel 224. The worm wheel 224 drives the coaxially connected rotating rod 225 to rotate synchronously. The turntable 227 at the top of the rotating rod 225 rotates with it. The pre-set arc groove 228 and straight groove 229 on the surface of the turntable 227 form a guide trajectory. One end of the slide rod 2210 is embedded in the arc groove 228, and the turntable 227 rotates... During rotation, the arc groove 228 generates a radial thrust on the slide rod 2210. The slide rod 2210 slides along the guide direction of the straight groove 229, driving the clamping plate 2211 connected to the top to move synchronously. The six sets of symmetrically arranged clamping plates 2211 move towards the center, achieving precise clamping and fixing of the hexagonal expansion nut. It can quickly adapt to hexagonal nuts of different sizes. At the same time, the six sets of slide rods 2210 fit with the side wall of the hexagonal nut, which can keep the nut in an accurate position during drilling and other processing operations, improving the accuracy of processing. At the same time, it can quickly and accurately clamp and fix nuts of different sizes, reducing clamping time and improving production efficiency. After the nut is tightened, motor 214 is started. Once started, motor 214 drives gear 215 at its output end to rotate clockwise. Gear 215 meshes with the external teeth of double-sided gear ring 212, causing it to rotate around the limiting slide rail 213 within the support frame 211. The top teeth of double-sided gear ring 212 mesh with spur gear 216, causing spur gear 216 and the coaxial rotating rod 217 to rotate. Simultaneously, during the rotation of spur gear 216, it causes the gear plate 218 to move linearly downwards along the slide rail 219. The gear plate 218 then drives the support sleeve 21... 10. Synchronous movement: The push rod 2111 inside the support sleeve 2110 moves downward synchronously under the action of the support sleeve 2110, thereby pushing the pressure rod 2112 to move towards the workpiece until the pressure rod 2112 is tightly fitted with the non-machined surface of the hexagonal expansion nut, forming a secondary reinforcement constraint, reducing the possibility of the nut shifting or falling off due to external force during processing, and further improving the processing quality. At the same time, during the mutual movement of multiple clamping plates 2211, the push rod 2111 will slide inside the support sleeve 2110 through the pressure rod 2112.
[0017] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0018] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the present utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the present utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.
Claims
1. A hexagonal expansion nut production equipment, comprising a workbench (111) and a limiting frame (112), wherein the workbench (111) serves as the supporting foundation for the entire device, and the top of the workbench (111) is welded to the bottom of the limiting frame (112); characterized in that, Also includes: Positioning mechanism (2), the positioning mechanism (2) is set at the top and bottom of the workbench (111), the positioning mechanism (2) is used to clamp and fix nuts of different sizes; The positioning mechanism (2) includes a clamping assembly (22), which includes a worm gear (224) and a worm (226). A rotating rod (225) is welded inside the worm gear (224). A turntable (227) is welded to the top of the outer surface of the rotating rod (225). The top of the turntable (227) is provided with six arc grooves (228). The top of the worktable (111) is provided with six straight grooves (229) corresponding to the arc grooves (228). The top of the worktable (111) is provided with six clamping plates (2211). The six clamping plates (2211) are located in the inner ring of the limiting frame (112).
2. The hexagonal expansion nut production equipment according to claim 1, characterized in that, The positioning mechanism (2) further includes: The reinforcement component (21) is connected to the limiting frame (112) and is used to reinforce the fixed nut for a second time.
3. The hexagonal expansion nut production equipment according to claim 1, characterized in that, The bottom of the workbench (111) is welded with a protective cover one (221), and the bottom of the protective cover one (221) is welded with a protective cover two (222). The worm wheel (224) and the worm (226) are set inside the cavity of the protective cover two (222). The front of the protective cover two (222) is bolted with a motor two (223). The output end of the back of the motor two (223) is connected to the front of the worm (226) through a coupling. The outer surface of the worm wheel (224) meshes with the outer surface of the worm (226). The outer surface of the worm (226) is rotatably connected to the inner edge of the protective cover two (222).
4. The hexagonal expansion nut production equipment according to claim 1, characterized in that, The turntable (227) is located inside the cavity of the first protective cover (221). The second rotating rod (225) passes through the second protective cover (222) and extends into the cavity of the first protective cover (221). The outer surface of the second rotating rod (225) is rotatably connected to the first protective cover (221) and the interior of the second protective cover (222).
5. The hexagonal expansion nut production equipment according to claim 1, characterized in that, Each of the six arc grooves (228) is slidably connected with a slide rod (2210). Each of the six slide rods (2210) passes through the arc groove (228) and the straight groove (229) and extends to the top of the worktable (111). The top of the outer surface of each of the six slide rods (2210) is welded to the inside of the clamping plate (2211). All six clamps (2211) are L-shaped.
6. The hexagonal expansion nut production equipment according to claim 2, characterized in that, The reinforcement component (21) includes a support frame (211), which is welded to the outer ring of the limiting frame (112). A motor (214) is bolted to the top of the support frame (211). A gear (215) is provided inside the cavity of the support frame (211). The bottom output end of the motor (214) passes through the support frame (211) and is welded to the inside of the gear (215). A limiting slide rail (213) is welded to the inner wall of the cavity of the limiting frame (112). A double-sided gear ring (212) is slidably connected to the top of the limiting slide rail (213).
7. The hexagonal expansion nut production equipment according to claim 6, characterized in that, The outer ring of the double-sided gear ring (212) meshes with the outer surface of the gear (215). The top of the double-sided gear ring (212) is meshed with six spur gears (216). Each of the six spur gears (216) has a rotating rod (217) welded inside. The outer surface of each of the six rotating rods (217) is rotatably connected to the inner edge of the limiting frame (112). The inner wall of the cavity of the limiting frame (112) has six slide rails (219). Each of the six slide rails (219) has a toothed plate (218) slidably connected inside.
8. The hexagonal expansion nut production equipment according to claim 7, characterized in that, The six toothed plates (218) are all meshed with the outer surface of the spur gear (216) on the side away from the slide rail (219). The six toothed plates (218) are all welded with support sleeves (2110) on the corresponding side. The inner ring of the worktable (111) has six openings. The six support sleeves (2110) pass through the openings and extend to the inner ring of the limiting frame (112). The cavity of the six support sleeves (2110) is slidably connected with push rods (2111). The end of the six push rods (2111) away from the support sleeves (2110) is welded with a pressure rod (2112). The six pressure rods (2112) pass through the clamping plate (2211) and extend to the inner side. The outer surface of the six pressure rods (2112) is slidably connected to the inner edge of the clamping plate (2211).