Spinning die of clutch shell
By using a modularly designed spinning die, the problem that existing spinning dies cannot adapt to clutch housings of different specifications is solved, thereby improving the applicability and forming accuracy of the spinning die and enhancing the ease of operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-21
- Publication Date
- 2026-04-14
AI Technical Summary
In the existing technology, existing spinning dies cannot meet the production needs of different specifications, and cannot produce products of different specifications. The applicability of spinning dies is low. In the existing technology, existing patented dies have low adaptability in the spinning process.
By adopting a modular spinning die design and modular spinning components, the applicability of the spinning die is improved.
This has improved the applicability of spinning dies, increased forming precision, enhanced processing quality, and improved ease of operation.
Smart Images
Figure CN224114957U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of automotive core component manufacturing technology, and in particular to a spinning die for a clutch housing. Background Technology
[0002] A clutch, similar to a switch, engages or disengages the transmission of power. The clutch housing is a crucial component of the clutch, and its product parameters and manufacturing precision directly affect the clutch's operating efficiency. (Refer to...) Figure 1 The clutch housing includes a circular metal plate with a plum blossom-shaped positioning hole at the center. The outer periphery of the metal plate is formed into an annular edge by spinning. The inner periphery of the annular edge is formed with circumferential tooth grooves for power transmission engagement.
[0003] In the existing technology, clutch housings are mostly manufactured using integral spinning dies, which spin metal blanks by using upper and lower dies together. However, in actual production needs, clutch housings vary in size. Since the lower die base in existing dies is mostly a fixed structure that matches the diameter of the target product, it is impossible to produce clutch housings of different sizes according to different production needs. The applicability of spinning dies is low and there are obvious shortcomings. Utility Model Content
[0004] To improve the applicability of spinning dies, this application provides a spinning die for a clutch housing.
[0005] The spinning die for a clutch housing provided in this application adopts the following technical solution:
[0006] A spinning die for a clutch housing includes a base and a support. The base is disposed on the support, and a mounting seat is disposed on the base. A forming block is detachably connected to the mounting seat by a plurality of connecting bolts. A mandrel die for forming tooth grooves is fixedly sleeved on the outer periphery of the forming block. A spinning assembly for spinning workpieces is disposed on the support, and a rotating component for driving the mounting seat to rotate is disposed on the base.
[0007] By adopting the above technical solution, when the size of the spinning housing changes, the user can remove the mismatched forming block by connecting bolts, then install the matching forming block on the mounting base, place the workpiece on the forming block, and finally start the rotating component to drive the workpiece to rotate. While the workpiece is rotating, the spinning assembly spins the workpiece circumferentially. The forming block and the mounting base adopt a modular and detachable connection structure, which means that only the forming block of the corresponding specification needs to be replaced to adapt to the spinning of clutch housings of different diameters, thus improving the applicability of the spinning die.
[0008] Optionally, a pressure block is provided on the bracket via a connecting frame, the pressure block is coaxially opposite to the mounting base, and a lifting component is provided on the base to drive the mounting base to move up and down along the axial direction.
[0009] By adopting the above technical solution, after the workpiece is placed on the forming block, the user drives the mounting seat to press the workpiece against the bottom surface of the pressure block through the lifting component. The pressure generated by the pressure block on the workpiece fixes the workpiece on the forming block. The setting of the pressure block ensures that the workpiece always bears a uniform axial clamping force during the spinning process, effectively suppressing the radial movement of the workpiece during high-speed spinning and ensuring the smooth progress of the spinning process.
[0010] Optionally, a positioning post is provided at the center of the forming block, the positioning post having the same shape as the positioning hole, and a clearance groove is provided on the pressing block for the positioning post to pass through.
[0011] By adopting the above technical solution, when placing the workpiece, the positioning pin passes through the positioning hole at the center of the workpiece. The axial movement of the workpiece during the spinning process is effectively restricted by the insertion and cooperation between the positioning pin and the positioning hole, avoiding the defect of insufficient single-sided edge forming caused by axial offset, reducing the coaxiality error of the circumferential tooth groove, and improving the quality of the processed workpiece.
[0012] Optionally, the positioning post is detachably connected to the molding block by countersunk bolts.
[0013] By adopting the above technical solution, when the size of the center hole of the spinning die changes, the user can replace the positioning pin with a positioning pin that matches the size of the center hole of the die using countersunk bolts, ensuring the positioning effect of the positioning pin on the workpiece and further improving the applicability of the spinning die.
[0014] Optionally, the spinning assembly includes three spinning rollers and a driving device. The three spinning rollers are evenly arranged on the outer periphery of the forming block in the circumferential direction. Each spinning roller has a pushing surface on its outer periphery. The driving device sequentially drives the three spinning rollers to tilt downwards in a direction close to the axis of the forming block.
[0015] By adopting the above technical solution, when the rotating component is started, the driving device sequentially drives three spinning rollers to move downward along the direction close to the axis of the forming block. During the downward movement, the pushing surface pushes the edge of the workpiece to fold towards the mandrel mold, forming an annular extension. After the annular extension is formed, the three spinning rollers press the annular extension onto the mandrel mold. The pressure causes circumferential grooves to form on the inner sidewall of the annular extension. The setting of the spinning component realizes a progressive spinning mode. By applying pressure in a staggered manner, the peak value of metal flow stress is effectively dispersed, avoiding stress concentration caused by multiple spinning rollers spinning at the same time, and improving the forming accuracy.
[0016] Optionally, the angle between the pushing surface and the plane is an inclination, and the inclination of the three pushing surfaces increases sequentially along the outer periphery of the forming block.
[0017] By adopting the above technical solution, during the spinning process, the spinning roller with a smaller tilt angle first contacts the outer surface of the workpiece to guide the workpiece to produce initial deformation. Subsequently, the two spinning rollers with larger tilt angles contact the workpiece in turn to push the workpiece to form an annular edge. This makes the annular edge form gradually, avoiding stress concentration caused by the impact of excessive tilt angle of the pushing surface, thereby reducing material defects caused by stress concentration and further improving the forming accuracy.
[0018] Optionally, the base is provided with a stripping ring plate, the stripping ring plate is coaxially arranged with the mounting seat, the mounting seat is slidably inserted inside the stripping ring plate, and the inner diameter of the stripping ring plate is smaller than the outer diameter of the annular extension.
[0019] By adopting the above technical solution, after spinning is completed, the lifting component drives the mounting seat to move downward along the axis. The movement of the mounting seat causes the annular edge of the workpiece to abut against the stripping ring plate. As the mounting seat continues to descend, the stripping ring plate pushes the workpiece out of the mounting seat, realizing stripping. This setting realizes automatic stripping of the workpiece, effectively avoiding the inconvenience of manual material handling or causing scratches on the tooth groove surface, and improving the convenience of worker operation.
[0020] Optionally, the stripping ring plate can be detachably connected to the base by mounting bolts.
[0021] By adopting the above technical solution, before spinning, the user can replace the stripper ring with different specifications according to the size of the workpiece to be spun, ensuring that the inner diameter of the stripper ring matches the outer diameter of the annular extension, effectively ensuring the stripping effect of the stripper ring, thereby further improving the applicability of the spinning die.
[0022] In summary, this application includes at least one of the following beneficial technical effects:
[0023] 1. The molding block, positioning post, and stripper ring plate of this application all adopt a modular and detachable connection structure, which allows for the adaptation of clutch housings of different diameters by simply replacing the molding block, positioning post, and stripper ring plate of the corresponding specifications, thereby improving the applicability of the spinning die;
[0024] 2. This application sets up a progressive spinning assembly, which effectively disperses the peak stress of metal flow through staggered pressure application, avoids stress concentration caused by the simultaneous spinning of multiple spinning rollers and excessive impact of the pushing surface tilt angle, thereby reducing material defects caused by stress concentration and improving forming accuracy. Attached Figure Description
[0025] Figure 1This is a schematic diagram of the shell structure in the background art of this application.
[0026] Figure 2 This is a schematic diagram of the structure of this application.
[0027] Figure 3 This is a cross-sectional view of the molding block and the pressing block in the embodiments of this application.
[0028] Figure 4 This is a schematic diagram of the structure of the three spinning rollers and the forming block in the embodiment of this application.
[0029] Figure 5 This is a cross-sectional view of the spinning roller in an embodiment of this application.
[0030] Explanation of reference numerals in the attached drawings: 01, metal plate; 02, positioning hole; 03, annular extension; 04, circumferential toothed groove; 1, base; 2, bracket; 21, connecting frame; 22, pressure block; 221, clearance groove; 3, mounting seat; 31, connecting bolt; 4, spinning assembly; 41, spinning roller; 411, pushing surface; 412, inclination; 42, driving device; 5, forming block; 51, mandrel mold; 52, countersunk bolt; 53, positioning post; 6, stripping ring plate; 61, mounting bolt. Detailed Implementation
[0031] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.
[0032] This application discloses a spinning die for a clutch housing.
[0033] Reference Figure 1 A spinning die for a clutch housing includes a base 1 and a bracket 2. The base 1 is fixedly mounted on the bracket 2. A mounting seat 3 is fixedly mounted on the base 1. A connecting frame 21 and a spinning assembly 4 for spinning the workpiece are fixedly connected to the bracket 2. A pressure block 22 is detachably connected to the end of the connecting frame 21 near the mounting seat 3. The pressure block 22 and the mounting seat 3 are both cylindrical and coaxially opposite each other. A lifting component (not shown in the figure) that drives the mounting seat 3 to move up and down along the axis is fixedly mounted on the base 1. The lifting component can be a cylinder or other equipment in the prior art. The specific principle will not be described here.
[0034] Referring to the figure, the upper end face of the mounting base 3 is detachably connected to the molding block 5 by a plurality of connecting bolts 31. In this embodiment, there are six connecting bolts 31, which are evenly arranged circumferentially on the upper surface of the molding block 5. The outer periphery of the molding block 5 is fixedly connected to the mandrel mold 51 for forming the tooth groove. The base 1 is equipped with a driving component (not shown in the figure) for driving the mounting base 3 to rotate. The driving component can be a motor or other equipment in the prior art. The specific principle will not be described in detail here.
[0035] Referring to the figure, a positioning post 53 is detachably connected to the center of the forming block 5 by a countersunk bolt 52. The shape and size of the positioning post 53 are adapted to the positioning hole 02. A relief groove 221 is provided on the pressing block 22 for the positioning post 53 to pass through.
[0036] Reference Figure 1 A stripper ring plate 6 is detachably connected to the base 1 via mounting bolts 61. The stripper ring plate 6 is coaxially arranged with the mounting seat 3, and the mounting seat 3 slides inside the stripper ring plate 6. The inner diameter of the stripper ring plate 6 is smaller than the outer diameter of the annular extension 03. The forming block 5, the positioning post 53, and the stripper ring plate 6 all adopt a modular and detachable connection structure, which allows for the adaptation of clutch housings of different diameters by simply replacing the forming block 5, the positioning post 53, and the stripper ring plate 6 of the corresponding specifications, thereby improving the applicability of the spinning die.
[0037] When the specifications and dimensions of the spinning housing change, the user removes the mismatched forming block 5 and stripper ring 6 by connecting bolt 31 and mounting bolt 61. Then, the user installs the positioning post 53, which matches the size of the positioning hole 02, on the forming block 5 by countersunk bolt 52. Next, the user installs the matching forming block 5 and stripper ring 6 on the mounting base 3. The preparation work is then completed.
[0038] When placing the workpiece, the user first lowers the mounting base 3 to a suitable position using the lifting device, then places the workpiece on the mounting base 3, ensuring that the positioning pin 53 is inserted into the positioning hole 02. Finally, the user drives the mounting base 3 upward using the lifting device, and the mounting base 3 causes the workpiece to press against the pressure block 22. The axial and radial movement of the workpiece during the processing is effectively limited by the limiting effect of the positioning pin 53 and the pressure block 22, ensuring the smooth progress of the spinning process.
[0039] After the fixation is completed, the user starts the drive unit, which drives the mounting base 3 and the workpiece to rotate around the axis. During the rotation, the spinning assembly 4 spins the workpiece.
[0040] After spinning is completed, the lifting component drives the mounting base 3 to move downward along the axis. The movement of the mounting base 3 causes the annular extension edge 03 of the workpiece to abut against the stripping ring plate 6. As the mounting base 3 continues to descend, the stripping ring plate 6 pushes the workpiece out of the mounting base 3, realizing stripping. This setting realizes automatic stripping of the workpiece, effectively avoiding the inconvenience of manual material handling or causing scratches on the tooth groove surface, and improving the convenience of worker operation.
[0041] Reference Figure 1The spinning assembly 4 includes three spinning rollers 41 and a driving device 42. The three spinning rollers 41 are evenly arranged on the outer periphery of the forming block 5 in the circumferential direction. The outer periphery of each spinning roller 41 near the bottom is a pushing surface 411. The angle between the pushing surface 411 and the plane is the inclination 412. The inclination 412 of the three pushing surfaces 411 increases sequentially along the outer periphery of the forming block 5.
[0042] Referring to the figure, the drive device 42 is fixedly installed on the bracket 2. During the spinning process, the drive device 42 drives the three spinning rollers 41 to move from top to bottom in a direction close to the axis of the forming block 5. The drive device 42 can adopt the driving method of combining horizontal and vertical drive sources in the prior art. The specific principle will not be described in detail here.
[0043] Reference Figure 1 When the rotating part is started, the drive device 42 drives three spinning rollers 41 to move downward along the direction close to the axis of the forming block 5. Among them, the spinning roller 41 with the smallest tilt angle first contacts the outer surface of the workpiece and guides the workpiece to produce initial deformation. Then, the two spinning rollers 41 with larger tilt angles contact the workpiece in turn. During the process of the spinning rollers 41 moving downward at an angle, the pushing surface 411 pushes the edge of the workpiece to fold towards the mandrel mold 51 to form an annular extension 03. After the annular extension 03 is formed, the three spinning rollers 41 press the annular extension 03 onto the mandrel mold 51. The pressure causes the inner wall of the annular extension 03 to form a circumferential tooth groove 04.
[0044] The setting of the spinning component 4 realizes the progressive spinning mode. By applying pressure in a staggered manner, the peak stress of metal flow is effectively dispersed, avoiding stress concentration caused by the simultaneous spinning of multiple spinning rollers 41 and the excessively large tilt angle of the pushing surface 411. This reduces material defects caused by stress concentration and improves the forming accuracy.
[0045] The implementation principle of a spinning die for a clutch housing in this application embodiment is as follows: When the specifications and dimensions of the spinning housing change, the user removes the mismatched forming block 5 and stripper ring plate 6 using connecting bolts 31 and mounting bolts 61. Then, the positioning pin 53, which matches the size of the positioning hole 02, is installed on the forming block 5 using countersunk bolts 52. Next, the matching forming block 5 and stripper ring plate 6 are installed on the mounting base 3, and finally, the spinning operation is performed. The forming block 5, positioning pin 53, and stripper ring plate 6 all adopt a modular and detachable connection structure, so that only the corresponding specifications of the forming block 5, positioning pin 53, and stripper ring plate 6 need to be replaced to adapt to clutch housings of different diameters, which improves the applicability of the spinning die. Moreover, the spinning die used in this application has low die investment, short die manufacturing cycle, and high die strength, which is suitable for thick plate production.
[0046] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A spinning die for a clutch housing, comprising a base (1) and a bracket (2), wherein the base (1) is disposed on the bracket (2), and a mounting seat (3) is disposed on the base (1), characterized in that, The mounting base (3) is detachably connected to a forming block (5) by multiple connecting bolts (31). The outer periphery of the forming block (5) is fixedly fitted with a mandrel mold (51) for forming tooth grooves. The bracket (2) is provided with a spinning assembly (4) for spinning workpieces. The base (1) is provided with a rotating component for driving the mounting base (3) to rotate.
2. The spinning die for a clutch housing according to claim 1, characterized in that, A pressure block (22) is provided on the bracket (2) via a connecting frame (21). The pressure block (22) is coaxially opposite to the mounting base (3). A lifting component is provided on the base (1) to drive the mounting base (3) to rise and fall along the axial direction.
3. The spinning die for a clutch housing according to claim 2, characterized in that, A positioning post (53) is provided at the center of the forming block (5). The positioning post (53) has the same shape as the positioning hole (02). A clearance groove (221) is provided on the pressing block (22) for the positioning post (53) to pass through.
4. The spinning die for a clutch housing according to claim 3, characterized in that, The positioning post (53) is detachably connected to the molding block (5) by countersunk bolts (52).
5. The spinning die for a clutch housing according to claim 1, characterized in that, The spinning assembly (4) includes three spinning rollers (41) and a driving device (42). The three spinning rollers (41) are evenly arranged on the outer periphery of the forming block (5) in the circumferential direction. Each spinning roller (41) has a pushing surface (411) on its outer periphery. The driving device (42) sequentially drives the three spinning rollers (41) to move from top to bottom in a direction close to the axis of the forming block (5).
6. The spinning die for a clutch housing according to claim 5, characterized in that, The angle between the pushing surface (411) and the plane is an inclination (412), and the inclination (412) of the three pushing surfaces (411) increases sequentially along the outer periphery of the forming block (5).
7. The spinning die for a clutch housing according to claim 1, characterized in that, The base (1) is provided with a stripping ring plate (6), which is coaxially arranged with the mounting seat (3). The mounting seat (3) slides through the inside of the stripping ring plate (6), and the inner diameter of the stripping ring plate (6) is smaller than the outer diameter of the annular extension edge (03).
8. The spinning die for a clutch housing according to claim 7, characterized in that, The stripping ring plate (6) is detachably connected to the base (1) by mounting bolts (61).