Clamping device for machining thin circular ring part
By designing a clamping device for mechanical processing, the device includes elastic jacket and expansion bolts, the problems of difficult processing and high production cost of thin rings are solved, and the machining accuracy and efficiency are improved.
Patent Information
- Application Number
- CN202421515230.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-28
- Publication Date
- 2025-05-02
- Estimated Expiration
- 2034-06-28
AI Technical Summary
In mechanical processing, thin ring workpieces are difficult to process. Traditional methods require complex fixtures or additional support structures, which lead to increased production costs, complicated processing processes, and may lead to deformation or damage to the workpiece.
A clamping device including an elastic jacket and an expansion bolt is designed. By rotating the expansion bolt, the table-shaped expansion part is driven downward to expand the elastic jacket to clamp the thin ring, and the effective clamping of rings of different sizes is achieved.
The device is simple in structure and flexible in operation. It overcomes the problem of low processing efficiency caused by the complexity of traditional fixtures, reduces production costs, and ensures processing accuracy and product quality.
Smart Images
Figure CN222817987U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to mechanical processing technology, in particular to a clamping device used for processing thin circular ring parts. Background Art
[0002] In the field of mechanical processing, ring-shaped workpieces have always attracted the attention of the manufacturing industry due to their unique shape and wide range of application scenarios. However, for thin ring-shaped workpieces, the processing difficulty is relatively high. Due to the thinness of the ring, clamping during the processing becomes particularly difficult, and sometimes even effective clamping cannot be achieved, which directly affects the processing accuracy and efficiency.
[0003] Traditional processing methods usually require the use of complex fixtures or the addition of additional support structures to assist clamping when processing thin rings. Although these methods have solved the clamping problem to a certain extent, they have also brought about problems such as increased production costs and complicated processing processes. For example, complex fixture designs require more materials and longer manufacturing time, while additional support structures may increase the source of errors in the processing process.
[0004] In addition, due to the fragility of thin rings, traditional processing methods may also cause the workpiece to deform or be damaged during processing, further reducing production efficiency and product quality. Therefore, how to design a simple fixture to reduce production costs and ensure processing accuracy and product quality has become an urgent problem to be solved in the field of mechanical processing. Summary of the invention
[0005] The utility model aims to provide a clamping device for processing thin annular parts, so as to overcome the problem of low processing efficiency caused by overly complex clamps in the prior art.
[0006] The utility model solves the above technical problems through the following technical solutions:
[0007] A clamping device for processing thin circular ring parts, comprising an elastic sleeve and an expansion bolt; the expansion bolt comprises a bolt head, a threaded rod and a truncated cone expansion portion, and the bolt head is connected to the threaded rod through the truncated cone expansion portion; the elastic sleeve is a hollow cylindrical structure, which comprises a first cylinder, a second cylinder, a third cylinder and a fourth cylinder from top to bottom, wherein the diameters of the first cylinder and the third cylinder are larger than those of the second cylinder, the gaps between the bottom surface of the first cylinder, the side wall of the second cylinder and the top surface of the third cylinder are limit grooves, and the bottom surface circumference of the third cylinder extends inwardly and connects with the end surface circumference of the fourth cylinder; at least one strip groove is arranged on the elastic sleeve along the radial direction, and the strip groove extends from the end surface of the first cylinder to the upper part of the fourth cylinder; when the clamping device clamps the thin circular ring, the truncated cone expansion portion is located inside the elastic sleeve, and the diameter of the limit groove is equal to the inner diameter of the thin circular ring.
[0008] Furthermore, the bottom of the fourth column is fixedly connected to a mounting base.
[0009] Furthermore, the mounting base is a cylinder, and the diameter of the mounting base is greater than the diameter of the fourth cylinder.
[0010] Furthermore, the mounting base is a cube, and the side length of the mounting base is greater than the diameter of the fourth cylinder.
[0011] Furthermore, the mounting base is a rectangular parallelepiped, and the width of the mounting base is greater than the diameter of the fourth cylinder.
[0012] Furthermore, a groove is provided on the bolt head for rotating the expansion bolt to move downward.
[0013] Furthermore, the groove is one of a hexagonal groove, a hexagonal flower groove or a cross groove.
[0014] Furthermore, there are four strip-shaped grooves.
[0015] Furthermore, there are 12 strip-shaped grooves.
[0016] Furthermore, the strip grooves are evenly arranged on the elastic jacket.
[0017] Compared with the prior art, the positive and progressive effects of the utility model are:
[0018] The utility model provides a clamping device for processing thin circular ring parts, the clamping device comprises an elastic jacket and an expansion bolt, the expansion bolt comprises a bolt head, a threaded rod and a truncated cone expansion portion, the bolt head is connected to the threaded rod through the truncated cone expansion portion; by rotating the expansion bolt, the truncated cone expansion portion is driven to move downward, the elastic jacket is expanded, until the second column of the elastic jacket can support the thin circular ring, so as to achieve the function of the elastic jacket clamping the thin circular ring, wherein the expansion bolt can adjust the downward movement distance according to the inner ring diameter of the thin circular ring, so as to achieve the clamping of thin circular rings of different sizes. The device has a simple structure and flexible operation, overcomes the problem of low processing efficiency caused by the excessive complexity of the fixture in the prior art, and solves the problem of high difficulty and high cost in processing thin circular ring parts in traditional mechanical processing.
[0019] Furthermore, by providing a mounting base, a restraining force is provided to the device, so that when the machine tool operates on the workpiece, the mechanical operation can be carried out stably, thereby ensuring the processing accuracy.
[0020] Furthermore, the expansion space of the elastic jacket can be increased by controlling the number of limit grooves, making the device more flexible. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] The drawings in the specification are used to provide further understanding of the present invention and constitute a part of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.
[0022] Figure 1 This is a schematic diagram of the expansion bolt of the utility model before expansion;
[0023] Figure 2 It is a schematic diagram of the elastic jacket of the utility model;
[0024] Figure 3 It is a schematic diagram of Example 1;
[0025] Figure 4 This is a schematic diagram of the utility model before the thin ring is assembled;
[0026] Figure 5 This is a schematic diagram of the structure of the utility model after the thin ring is assembled;
[0027] Figure 6 A top detail view of the utility model after the thin ring is assembled;
[0028] Figure 7 It is a schematic diagram of the expansion bolt of the utility model;
[0029] Figure 8 This is a schematic diagram of Example 2.
[0030] Among them, 1 is an elastic jacket, 1-1 is a first column, 1-2 is a second column, 1-3 is a third column, 1-4 is a fourth column, 1-5 is a strip groove, 1-6 is a limit groove; 2 is an expansion bolt, 2-1 is a bolt head, 2-2 is a threaded rod, 2-3 is a groove, 2-4 is a truncated cone expansion part, 3 is a mounting base, and 4 is a thin ring. DETAILED DESCRIPTION
[0031] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.
[0032] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0033] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.
[0034] In the description of the embodiments of the present utility model, it should be noted that if the terms "upper", "lower", "horizontal", "inner", etc. indicate an orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product is usually placed when in use, it is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.
[0035] In addition, if the term "horizontal" appears, it does not mean that the component must be absolutely horizontal, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", which does not mean that the structure must be completely horizontal, but can be slightly tilted.
[0036] In the description of the embodiments of the present utility model, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.
[0037] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings:
[0038] See also Figure 1 , a clamping device for processing thin circular ring parts, comprising an elastic clamping sleeve 1 and an expansion bolt 2;
[0039] The expansion bolt 2 includes a bolt head 2-1, a threaded rod 2-2 and a truncated cone-shaped expansion portion 2-4, wherein the bolt head 2-1 is connected to the threaded rod 2-2 through the truncated cone-shaped expansion portion 2-4; the elastic jacket 1 is a hollow cylindrical structure, which includes, from top to bottom, a first cylinder 1-1, a second cylinder 1-2, a third cylinder 1-3 and a fourth cylinder 1-4, wherein the diameters of the first cylinder 1-1 and the third cylinder 1-3 are larger than those of the second cylinder 1-2, the gap between the bottom surface of the first cylinder 1-1, the side wall of the second cylinder 1-2 and the top surface of the third cylinder is a limiting groove 1-6, and the bottom surface circumference of the third cylinder 1-3 extends inwardly and is connected to the end surface circumference of the fourth cylinder 1-4;
[0040] At least one strip groove 1-5 is provided on the elastic jacket 1 along the radial direction, and the strip groove 1-5 extends from the end surface of the first column 1-1 to the upper part of the fourth column 1-4;
[0041] When the device clamps the thin circular ring 4, the truncated cone-shaped expansion portion 2-4 is located inside the elastic jacket 1, and the diameter of the limiting groove 1-6 is equal to the inner diameter of the thin circular ring 4;
[0042] See also Figure 4 , Figure 5 and Figure 6 The truncated cone expansion portion 2-4 is used to cooperate with the elastic sleeve 1 to clamp the thin circular ring 4.
[0043] Optionally, a mounting base 3 is fixedly connected to the bottom of the fourth column 1 - 4 to fix the device in a machining area.
[0044] Optional, see Figure 4 and Figure 5 The mounting base 3 is a cylinder, and the diameter of the mounting base 3 is greater than the diameter of the fourth column 1-4.
[0045] Optionally, the mounting base 3 is a cube, and the side length of the mounting base 3 is greater than the diameter of the fourth cylinder.
[0046] Optional, see Figure 8 The mounting base 3 is a rectangular parallelepiped, and the width of the mounting base 3 is greater than the diameter of the fourth cylinder.
[0047] Optionally, a groove 2-3 is provided on the bolt head 2-1 for rotating the expansion bolt 2 to move downward.
[0048] Optionally, the groove 2-3 is one of a hexagonal groove 2-3, a hexagonal flower groove 2-3 or a cross groove 2-3, see Figure 6 , the groove is a hexagonal groove.
[0049] Optional, see Figure 3 , there are 4 strip slots 1-5.
[0050] Optional, see Figure 8 , there are 12 strip slots 1-5.
[0051] Optional, see Figure 6 , the strip grooves 1-5 are evenly arranged on the elastic jacket 1.
[0052] The present invention is further described in detail below in conjunction with the embodiments:
[0053] Example 1
[0054] See also Figure 3 ,and Figure 7 A clamping device for processing thin circular parts, comprising an elastic jacket 1 and an expansion bolt 2; the expansion bolt 2 comprises a bolt head 2-1, a threaded rod 2-2 and a truncated cone expansion portion 2-4, the bolt head 2-1 is connected to the threaded rod 2-2 through the truncated cone expansion portion 2-4; the elastic jacket 1 is a hollow cylindrical structure, which comprises a first cylinder 1-1, a second cylinder 1-2, a third cylinder 1-3 and a fourth cylinder 1-4 from top to bottom, wherein the diameters of the first cylinder 1-1 and the third cylinder 1-3 are larger than those of the second cylinder 1-2, and the gaps between the bottom surface of the first cylinder 1-1, the side wall of the second cylinder 1-2 and the top surface of the third cylinder are limit grooves 1-6 The bottom circumference of the third cylinder 1-3 extends inward and connects with the end circumference of the fourth cylinder 1-4; four strip grooves 1-5 are arranged on the elastic jacket 1 along the radial direction, and the four strip grooves 1-5 are evenly arranged on the elastic jacket 1, and the strip grooves 1-5 extend from the end face of the first cylinder 1-1 to the upper part of the fourth cylinder 1-4; wherein, the two strip grooves along the diameter direction of the first cylinder are a pair of strip grooves, and each pair of strip grooves penetrates the longitudinal section of the elastic jacket from the end face of the first cylinder to the upper part of the fourth cylinder; when the device clamps the thin circular ring 4, the truncated cone expansion portion 2-4 is located inside the elastic jacket 1, and the diameter of the limiting groove 1-6 is equal to the inner diameter of the thin circular ring 4.
[0055] The bolt head 2-1 is provided with a groove 2-3, which is a hexagonal groove and is used for rotating the expansion bolt 2 to move downward; the device also includes a cube mounting base 3 fixedly connected to the fourth column 1-4, which is used to fix the device in the machining area.
[0056] The sizes of the elastic jacket 1 and the expansion bolt 2 can be changed according to the size of the processed parts. The more the number of the limiting grooves is, the larger the expansion space of the elastic jacket is.
[0057] Example 2
[0058] See also Figure 3 ,and Figure 8A clamping device for processing thin circular parts, comprising an elastic jacket 1 and an expansion bolt 2; the expansion bolt 2 comprises a bolt head 2-1, a threaded rod 2-2 and a truncated cone expansion portion 2-4, the bolt head 2-1 is connected to the threaded rod 2-2 through the truncated cone expansion portion 2-4; the elastic jacket 1 is a hollow cylindrical structure, which comprises a first cylinder 1-1, a second cylinder 1-2, a third cylinder 1-3 and a fourth cylinder 1-4 from top to bottom, wherein the diameters of the first cylinder 1-1 and the third cylinder 1-3 are larger than those of the second cylinder 1-2, and the gaps between the bottom surface of the first cylinder 1-1, the side wall of the second cylinder 1-2 and the top surface of the third cylinder are limit grooves 1-6, The bottom circumference of the third cylinder 1-3 extends inward and connects with the end circumference of the fourth cylinder 1-4; 12 strip grooves 1-5 are arranged on the elastic jacket 1 along the radial direction, and the strip grooves 1-5 are evenly arranged on the elastic jacket 1, and the strip grooves 1-5 extend from the end face of the first cylinder 1-1 to the top of the bottom face of the fourth cylinder 1-4; wherein, the two strip grooves along the diameter direction of the first cylinder are a pair of strip grooves, and each pair of strip grooves penetrates the longitudinal section of the elastic jacket from the end face of the first cylinder to the upper part of the fourth cylinder; when the device clamps the thin circular ring 4, the truncated cone expansion portion 2-4 is located inside the elastic jacket 1, and the diameter of the limit groove 1-6 is equal to the inner diameter of the thin circular ring 4.
[0059] A groove 2-3 is provided on the bolt head 2-1, and the groove is a hexagonal groove, which is used to rotate the expansion bolt 2 to move downward; the device also includes a rectangular mounting base 3 fixedly connected to the fourth column 1-4, which is used to fix the device in the machining area. When the machine tool operates on the workpiece, the mounting base plays a restraining role, so that the mechanical operation can be carried out steadily, thereby ensuring the machining accuracy.
[0060] When in use, place the thin circular ring 4 in the limiting groove 1-6, and then rotate the expansion bolt 2 to the inside of the elastic sleeve 1, and rotate the expansion bolt 2 through the hexagonal groove to drive the truncated cone expansion part 2-4 to move downward, thereby expanding the elastic sleeve until the second cylinder 1-2 can support the thin circular ring, thereby realizing the function of the elastic sleeve 1 clamping the thin circular ring 4, wherein the expansion bolt 2 can adjust the downward movement distance according to the inner ring diameter of the thin circular ring 4, thereby realizing the clamping of thin circular rings of different sizes.
[0061] The above content is only for explaining the technical idea of the utility model and cannot be used to limit the protection scope of the utility model. Any changes made on the basis of the technical solution in accordance with the technical idea proposed by the utility model shall fall within the protection scope of the claims of the utility model.
Claims
1. A clamping device for processing thin circular parts, characterized in that: It comprises an elastic jacket (1) and an expansion bolt (2); The expansion bolt (2) comprises a bolt head (2-1), a threaded rod (2-2) and a truncated cone-shaped expansion portion (2-4); the bolt head (2-1) is connected to the threaded rod (2-2) via the truncated cone-shaped expansion portion (2-4); The elastic jacket (1) is a hollow cylindrical structure, which comprises, from top to bottom, a first cylinder (1-1), a second cylinder (1-2), a third cylinder (1-3) and a fourth cylinder (1-4), wherein the diameters of the first cylinder (1-1) and the third cylinder (1-3) are larger than those of the second cylinder (1-2), the gap between the bottom surface of the first cylinder (1-1), the side wall of the second cylinder (1-2) and the top surface of the third cylinder is a limiting groove (1-6), and the bottom surface circumference of the third cylinder (1-3) extends inwardly and is connected to the end surface circumference of the fourth cylinder (1-4); At least one strip groove (1-5) is provided on the elastic jacket (1) along a radial direction, and the strip groove (1-5) extends from the end surface of the first column (1-1) to the upper part of the fourth column (1-4); When the clamping device clamps the thin circular ring (4), the truncated cone-shaped expansion portion (2-4) is located inside the elastic jacket (1), and the diameter of the limiting groove (1-6) is equal to the inner diameter of the thin circular ring (4).
2. A clamping device for processing thin circular parts according to claim 1, characterized in that: The bottom of the fourth column (1-4) is fixedly connected to a mounting base (3).
3. A clamping device for processing thin annular parts according to claim 2, characterized in that: The mounting base (3) is a cylinder, and the diameter of the mounting base (3) is greater than the diameter of the fourth cylinder (1-4).
4. A clamping device for processing thin annular parts according to claim 2, characterized in that: The mounting base (3) is a cube, and the side length of the mounting base (3) is greater than the diameter of the fourth cylinder.
5. A clamping device for processing thin annular parts according to claim 2, characterized in that: The mounting base (3) is a rectangular parallelepiped, and the width of the mounting base (3) is greater than the diameter of the fourth cylinder.
6. A clamping device for processing thin annular parts according to claim 1, characterized in that: The bolt head (2-1) is provided with a groove (2-3) for rotating the expansion bolt (2) to move downward.
7. A clamping device for processing thin annular parts according to claim 6, characterized in that: The groove (2-3) is one of a hexagonal groove (2-3), a hexagonal flower-shaped groove (2-3) or a cross groove (2-3).
8. A clamping device for processing thin annular parts according to claim 1, characterized in that: There are four strip-shaped grooves (1-5).
9. A clamping device for processing thin annular parts according to claim 1, characterized in that: There are 12 strip-shaped grooves (1-5).
10. A clamping device for processing thin annular parts according to any one of claims 8 to 9, characterized in that: The strip grooves (1-5) are evenly arranged on the elastic jacket (1).