A forming device for thin-walled bearing ring
By introducing a buffer and a fixing part into the thin-walled bearing ring forming device, and by utilizing the cooperation of elastic and guiding components, the problems of mold damage and shape deviation are solved, the mold is stably fixed and accurately positioned, and the forming quality and efficiency are improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG JINTAI IND DEV
- Filing Date
- 2025-07-24
- Publication Date
- 2026-06-05
AI Technical Summary
Existing molding equipment is not convenient for buffering the force of fixing the mold during use. The rigid fixing force will damage the mold or the raw material of the thin-walled bearing ring, resulting in deviations in the shape and size of the thin-walled bearing ring after molding.
A thin-walled bearing ring forming device including a buffer section and a fixing section was designed. The buffer section absorbs the impact force through an elastic component, and the fixing section provides flexible support and clamping through elastic force to avoid damage to the mold or raw material by rigid clamping. The device also achieves precise positioning and quick replacement of the mold through a guide component.
This effectively avoids damage to the mold and raw materials, ensures the shape and dimensional accuracy of the formed thin-walled bearing rings, and improves mold change efficiency and product quality stability.
Smart Images

Figure CN224322218U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of bearing ring processing technology, and in particular relates to a device for forming thin-walled bearing rings. Background Technology
[0002] As the high-end equipment manufacturing industry develops towards lightweight, high precision, and long lifespan, the performance requirements for key basic components—rolling bearings—are constantly increasing. Thin-walled bearing rings, due to their ability to significantly reduce overall weight and save space, are in high-precision fields such as aerospace, precision machine tools, and new energy vehicles, where demand continues to grow. As the core load-bearing component of a bearing, the geometric accuracy and internal material uniformity of thin-walled bearing rings after forming directly determine the bearing's load-bearing capacity, rotational accuracy, and service life. Therefore, a highly efficient thin-walled bearing ring forming device is needed to meet manufacturing requirements.
[0003] However, existing molding devices are not convenient for buffering the force of fixing the mold during use. The rigid fixing force will damage the mold or the raw material of the thin-walled bearing ring, affecting the integrity of the mold and causing deviations in the shape and size of the thin-walled bearing ring after molding. Utility Model Content
[0004] The purpose of this utility model is to provide a forming device for thin-walled bearing rings. By setting a buffer part, it solves the problem that existing forming devices are not convenient to buffer the force of fixing the mold during use. The rigid fixing force will damage the mold or the raw material of the thin-walled bearing ring, affect the integrity of the mold, and cause deviations in the shape and size of the formed thin-walled bearing ring.
[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:
[0006] This utility model relates to a device for forming thin-walled bearing rings, comprising a worktable and a support frame fixedly connected to the top of the worktable, and further comprising: a pressing mold part disposed below the support frame; a buffer part, comprising several buffer parts arranged in a circumferential array on the top of the worktable; a fixing part mounted on the worktable; the buffer part including an elastic component mounted above the worktable; and a connecting component disposed on the top of the worktable; the elastic component comprising two trapezoidal blocks disposed above the worktable, a spring telescopic rod 1 fixedly connected between the two trapezoidal blocks, a slider slidably connected to the front side of the two spring telescopic rods 1, and a spring telescopic rod 2 fixedly connected to the front side of the slider; wherein, the two trapezoidal blocks are mirror images of each other, utilizing elastic deformation to absorb and buffer impact forces, avoiding damage to the mold or workpiece caused by rigid clamping, and simultaneously ensuring balanced and appropriate clamping force through elastic force feedback, providing flexible support for the stable fixation of the mold.
[0007] Furthermore, the pressing part includes a mold placed on the top of the workbench, a hydraulic cylinder is fixedly connected to the support frame, and a pressing block is fixedly connected to the output shaft of the hydraulic cylinder; wherein, the outer wall of the hydraulic cylinder penetrates the support frame.
[0008] Furthermore, the fixing part includes a power assembly mounted on the bottom of the worktable; and a guide assembly disposed on the worktable; wherein the guide assembly is located above the power assembly.
[0009] Furthermore, the connecting assembly includes a rectangular block disposed on the top of the workbench, a spring box fixedly connected to the rear side of the rectangular block, and clamping blocks slidably connected to the front sides of the two trapezoidal blocks; wherein, the front side of the second spring telescopic rod is fixedly connected to the front inner wall of the spring box, and the outer wall of the slider is slidably connected to the inner wall of the spring box, and the connecting assembly serves as a bridge connecting the buffer part and the fixed part.
[0010] Furthermore, the power assembly includes a cross bracket disposed at the bottom of the worktable, a rotating shaft passing through the cross bracket, and several hinge rods hinged to the bottom of the cross bracket. A power component is disposed at the bottom of the worktable. The top of the rotating shaft is rotatably connected to the worktable, the cross bracket is fixedly connected to the rotating shaft, and the power assembly is the power source for the fixed part.
[0011] Furthermore, the guiding assembly includes several guide grooves formed on the worktable, and guide sliders are slidably connected to the inner walls of the guide grooves; wherein, the guide sliders are respectively hinged to several hinge rods, and the top of the corresponding guide sliders are fixedly connected to the rectangular block, providing precise guidance for the movement of the fixed part of the assembly. The guide grooves restrict the movement trajectory of the guide sliders, ensuring that they can only slide smoothly in a preset direction, and avoiding movement deviation that could cause mold fixing misalignment.
[0012] Furthermore, the power component includes a motor frame fixedly connected to the bottom of the workbench, and a motor is fixedly connected to the inner wall of the motor frame; wherein the output shaft of the motor is fixedly connected to the rotating shaft through a coupling.
[0013] This utility model has the following beneficial effects:
[0014] 1. By setting up a buffer section, the cooperation between the elastic component and the connecting component plays a buffering role in the process of fixing the mold. When the clamping block contacts the mold, the rectangular block continues to approach, causing the spring box to squeeze the trapezoidal block, causing the spring telescopic rod one and spring telescopic rod two to deform. The elastic force generated serves as the force for fixing the mold, which can not only achieve stable clamping of the mold, but also buffer the force during fixing, avoiding damage to the mold or thin-walled bearing ring material due to excessive fixing force. At the same time, it helps to center the mold during the fixing process, ensuring the stability of subsequent molding processing.
[0015] 2. By setting a fixing part, the motor in the power component drives the cross bracket to rotate through the rotating shaft, so that the hinge rod drives the guide slider to slide in the guide groove, thereby moving the connecting component closer to or away from the mold, realizing the quick fixing and replacement of the mold, ensuring the stability of the sliding process, and ensuring that the mold can be accurately positioned. This not only improves the efficiency of mold replacement and adapts to the molding requirements of thin-walled bearing rings of different specifications, but also ensures the stability of the mold position during the molding process through fixing, thereby improving product quality.
[0016] 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
[0017] 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.
[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0019] Figure 2 This is a partial cross-sectional view of the buffer section of this utility model;
[0020] Figure 3 This is a partial cross-sectional view of the elastic component of this utility model;
[0021] Figure 4 This is a partial cross-sectional view of the fixing part of this utility model;
[0022] Figure 5 This utility model Figure 4 A magnified structural diagram of A in the middle.
[0023] The attached diagram lists the components represented by each number as follows:
[0024] 1. Pressing section; 111. Workbench; 112. Support frame; 113. Mold; 114. Hydraulic cylinder; 115. Pressing block; 2. Buffer section; 21. Elastic component; 211. Trapezoidal block; 212. Spring telescopic rod one; 213. Slider; 214. Spring telescopic rod two; 22. Connecting component; 221. Rectangular block; 222. Spring box; 223. Clamping block; 3. Fixing section; 31. Power component; 311. Cross bracket; 312. Rotating shaft; 313. Hinge rod; 314. Motor frame; 315. Motor; 32. Guide component; 321. Guide groove; 322. Guide slider. Detailed Implementation
[0025] 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.
[0026] Please see Figure 1-5 As shown, this utility model is a device for forming thin-walled bearing rings, including a worktable 111 and a support frame 112 fixedly connected to the top of the worktable 111. It also includes: a pressing mold part 1, disposed below the support frame 112; a buffer part 2, of which several buffer parts 2 are arranged in a circumferential array on the top of the worktable 111; and a fixing part 3, mounted on the worktable 111. The pressing mold part 1 includes a mold 113 placed on the top of the worktable 111. A hydraulic cylinder 114 is fixedly connected to the support frame 112, and a pressure block 115 is fixedly connected to the output shaft of the hydraulic cylinder 114. The outer wall of the hydraulic cylinder 114 penetrates the support frame 112.
[0027] The buffer section 2 includes an elastic component 21 mounted above the worktable 111; and a connecting component 22 disposed on the top of the worktable 111. The elastic component 21 includes two trapezoidal blocks 211 disposed above the worktable 111, with a spring telescopic rod 212 fixedly connected between the two trapezoidal blocks 211. A slider 213 is slidably connected to the front side of the two spring telescopic rods 212, and a spring telescopic rod 214 is fixedly connected to the front side of the slider 213. The two trapezoidal blocks 211 are mirror images of each other. The connecting component 22 includes... A rectangular block 221 is placed on top of the workbench 111. A spring box 222 is fixedly connected to the rear side of the rectangular block 221. A clamping block 223 is slidably connected to the front side of two trapezoidal blocks 211. The front side of the spring telescopic rod 214 is fixedly connected to the front inner wall of the spring box 222, and the outer wall of the slider 213 is slidably connected to the inner wall of the spring box 222. By setting a buffer part, damage to the mold or thin-walled bearing ring material caused by excessive fixing force is avoided, so as to ensure that the integrity of the mold is not affected and to prevent deviations in the shape and size of the thin-walled bearing ring after molding.
[0028] The fixing part 3 includes a power assembly 31, which is installed at the bottom of the worktable 111; and a guide assembly 32, which is disposed on the worktable 111. The guide assembly 32 is located above the power assembly 31. The power assembly 31 includes a cross bracket 311 disposed at the bottom of the worktable 111, through which a rotating shaft 312 passes. Several hinge rods 313 are hinged to the bottom of the cross bracket 311. A power component is disposed at the bottom of the worktable 111. The top of the rotating shaft 312 is rotatably connected to the worktable 111, and the cross bracket 311 is fixedly connected to the rotating shaft 312. The guide assembly 32 includes several guide rods formed on the worktable 111. The inner walls of several guide slides 321 are slidably connected to guide sliders 322; among them, several guide sliders 322 are respectively hinged to several hinge rods 313, and the top of the corresponding guide slider 322 is fixedly connected to the rectangular block 221. The power component includes a motor frame 314 fixedly connected to the bottom of the worktable 111, and a motor 315 is fixedly connected to the inner wall of the motor frame 314; among them, the output shaft of the motor 315 is fixedly connected to the rotating shaft 312 through a coupling. By setting the fixing part, not only is the efficiency of mold changing improved and the forming requirements of thin-walled bearing rings of different specifications adapted, but the fixing can also ensure the stability of the mold position during the forming process and improve product quality.
[0029] A specific application of this embodiment is as follows: When using the mold 113, it is placed between several buffer sections 2. The motor 315 on the motor frame 314 is turned on. The motor 315 drives the cross bracket 311 to rotate via the rotating shaft 312. The cross bracket 311 drives several hinge rods 313 on it to rotate. The hinge rods 313 respectively drive several guide sliders 322 to move closer together under the guidance of the guide grooves 321. Thus, the guide sliders 322 drive several connecting components 22 to move closer together until the mold 113 is fixed. Conversely, controlling the motor 315 to reverse will release the mold 113, thereby completing the replacement of the mold 113. During the process of several buffer sections 2 moving closer together, one is analyzed, and the others are similar. Similarly, after the clamping block 223 contacts the mold 113 and centers it, it stops moving, while the rectangular block 221 continues to approach the clamping block 223, thereby causing the spring box 222 to squeeze the two trapezoidal blocks 211, making the two trapezoidal blocks 211 move closer to each other and compress the slider 213. At the same time, the slider 213 will also compress the second spring telescopic rod 214. The elastic force generated by the deformation of the first spring telescopic rod 212 and the second spring telescopic rod 214 serves as the force for the clamping block 223 to fix the mold 113, thereby buffering the fixing force of the fixing part 3. After the fixing is completed, the motor 315 is turned off, the raw material is put into the mold 113, and the hydraulic cylinder 114 on the support frame 112 is opened. The hydraulic cylinder 114 is stretched, thereby driving the pressure block 115 to squeeze the raw material in the mold 113 to complete the extrusion molding of the thin-walled bearing ring.
Claims
1. A device for forming thin-walled bearing rings, comprising a worktable (111) and a support frame (112) fixedly connected to the top of the worktable (111), characterized in that, Also includes: A molding part (1) is provided below the support frame (112); A buffer section (2) is provided, and the buffer sections (2) are arranged in a circular array on the top of the workbench (111); Fixing part (3), said fixing part (3) is mounted on the workbench (111); The buffer section (2) includes an elastic component (21) mounted above the worktable (111); and A connecting component (22) is disposed on top of the workbench (111); The elastic component (21) includes two trapezoidal blocks (211) disposed above the workbench (111), a spring telescopic rod (212) is fixedly connected between the two trapezoidal blocks (211), a slider (213) is slidably connected to the front side of the two spring telescopic rods (212), and a spring telescopic rod (214) is fixedly connected to the front side of the slider (213). Among them, the two trapezoidal blocks (211) are mirror images of each other.
2. The apparatus for forming thin-walled bearing rings according to claim 1, characterized in that, The pressing part (1) includes a mold (113) placed on the top of the workbench (111), a hydraulic cylinder (114) is fixedly connected to the support frame (112), and a pressing block (115) is fixedly connected to the output shaft of the hydraulic cylinder (114). The outer wall of the hydraulic cylinder (114) penetrates the support frame (112).
3. The apparatus for forming thin-walled bearing rings according to claim 2, characterized in that, The fixing part (3) includes a power assembly (31) which is mounted on the bottom of the worktable (111); and A guide assembly (32) is disposed on a worktable (111); The guide component (32) is located above the power component (31).
4. The apparatus for forming thin-walled bearing rings according to claim 3, characterized in that, The connecting assembly (22) includes a rectangular block (221) disposed on the top of the workbench (111), a spring box (222) fixedly connected to the rear side of the rectangular block (221), and clamping blocks (223) slidably connected to the front sides of the two trapezoidal blocks (211). Among them, the front side of the spring telescopic rod (214) is fixedly connected to the front inner wall of the spring box (222), and the outer wall of the slider (213) is slidably connected to the inner wall of the spring box (222).
5. The apparatus for forming thin-walled bearing rings according to claim 4, characterized in that, The power assembly (31) includes a cross bracket (311) disposed at the bottom of the workbench (111), a rotating shaft (312) passing through the cross bracket (311), and a plurality of hinge rods (313) hinged at the bottom of the cross bracket (311). The bottom of the workbench (111) is provided with a power component. The top of the rotating shaft (312) is rotatably connected to the worktable (111), and the cross bracket (311) is fixedly connected to the rotating shaft (312).
6. The apparatus for forming thin-walled bearing rings according to claim 5, characterized in that, The guide assembly (32) includes a plurality of guide grooves (321) formed on the workbench (111), and guide sliders (322) are slidably connected to the inner walls of the plurality of guide grooves (321). Among them, several guide sliders (322) are hinged to several hinge rods (313), and the top of the corresponding guide slider (322) is fixedly connected to the rectangular block (221).
7. The apparatus for forming thin-walled bearing rings according to claim 6, characterized in that, The power component includes a motor frame (314) fixedly connected to the bottom of the workbench (111), and a motor (315) is fixedly connected to the inner wall of the motor frame (314). The output shaft of the motor (315) is fixedly connected to the rotating shaft (312) via a coupling.