A tooling for processing thin-walled porous filters
By designing a machining fixture that includes a base, a support shaft, a rotating cylinder, and a pressure ring, the problems of deformation and debris impact during the machining of thin-walled porous filters were solved, achieving stable clamping and efficient machining.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUHAN CHUKAI AUTOMOBILE PARTS CO LTD
- Filing Date
- 2025-06-26
- Publication Date
- 2026-05-26
AI Technical Summary
Thin-walled porous filters are prone to deformation during processing, and the filter holes are poorly processed, especially with drill bit residue affecting the processing quality.
The machining fixture consists of a base, a support shaft, a rotating cylinder, and a pressure ring. The filter is fixed by the positioning side plate and the support side plate. The clearance groove and positioning column on the rotating cylinder, together with the positive pressure blower, remove the debris, prevent deformation, and improve the machining efficiency.
It achieves stable clamping and efficient processing of thin-walled porous filters, prevents cylinder deformation, improves residue cleaning efficiency, and ensures the quality of continuous drilling.
Smart Images

Figure CN224274200U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of automotive parts processing equipment, and in particular relates to a tooling for processing thin-walled porous filters. Background Technology
[0002] Thin-walled porous filters are a common filtration device in automotive filtration systems. They typically have a cylindrical structure and are designed with finely distributed filter pores. Due to the thinness of the cylinder and the limited hardness of the material, the cylinder is prone to deformation during continuous machining of the filter pores on its surface. This makes it impossible to achieve efficient and simple filter pore machining. In addition, because the filter pores are small and the drill bit diameter is small, metal shavings left over from the machining process can affect the machining effect of the filter pores, leading to problems such as gaps in the filter pores and shavings getting stuck in the drill bit. Utility Model Content
[0003] The purpose of this invention is to provide a machining tooling that can be used to conveniently process a large number of filter holes around the body of a thin-walled porous filter, based on the actual processing requirements of thin-walled porous filters.
[0004] To achieve the above objectives, the present invention adopts the following technical solution.
[0005] A tooling for processing thin-walled porous filters includes a base 1, a support shaft 2, a rotating cylinder 3, and a pressure ring 4;
[0006] The base 1 has a U-shaped structure, including a base plate 10 and positioning side plates 11 and supporting side plates 12 located on the top left and right sides of the base plate 10. The positioning side plate 11 is provided with an annular through hole 11a, and the supporting side plate 12 is provided with an upward-facing U-shaped hole 12a, with the U-shaped hole 12a directly opposite the annular through hole 11a. The end of the support shaft 2 facing the positioning side plate 11 is inserted into the annular through hole 11a and then extends out, with the extended part forming an annular limiting plate surface 20. The other end of the support shaft 2 is inserted into the U-shaped hole 12a.
[0007] Rotary cylinder 3 and pressure ring 4 are sleeved on support shaft 2, with rotary cylinder 3 located on one side of positioning side plate 11 and pressure ring 4 located on one side of support side plate 12.
[0008] The support shaft 2 section where the pressure ring 4 is located is provided with an external thread. The pressure ring 4 is tightened on the external thread and presses against the rotating drum 3.
[0009] The rotating cylinder 3 has horizontally extending and uniformly arranged circular array of clearance slots 3a on its body.
[0010] In a further improvement or preferred embodiment of the aforementioned thin-walled porous filter processing fixture, the rotating drum 3 is provided with an annular positioning part 31 on the side facing the positioning side plate 11, and the annular positioning part 31 is provided with through holes 31a respectively connected to each clearance groove 3a.
[0011] A mounting hole 11b is provided at the position directly opposite the through hole 31a at the top of the positioning side plate 11 and the rotating cylinder 3, and a positioning post 5 is provided in the mounting hole 11b;
[0012] The positioning post 5 has a hollow structure. The positioning post 5 extends out of the through hole 31a on one side and can be inserted into the through hole 31a. Its other side is connected to an external positive pressure blower.
[0013] In a further improvement or preferred embodiment of the aforementioned thin-walled porous filter processing fixture, the rotating cylinder 3 is provided with a support cylinder 30 that can extend into the annular through hole 11a on the side facing the annular through hole 11a, and the support cylinder 30 is inserted into the annular through hole 11a; the outer wall of the support cylinder 30 is rotatably connected to the inner wall of the annular through hole 11a.
[0014] In a further improvement or preferred embodiment of the aforementioned thin-walled porous filter processing fixture, a rotary bearing 6 is provided between the support cylinder 30 and the annular through hole 11a.
[0015] In a further improvement or preferred embodiment of the aforementioned thin-walled porous filter processing fixture, a wear-resistant ring 7 is provided between the limiting plate surface 20 and the positioning side plate 11, and the wear-resistant ring 7 is sleeved on the support cylinder 30.
[0016] Its beneficial effects are as follows:
[0017] The tooling for processing thin-walled porous filters of this invention is easy to use and provides stable clamping. It can effectively maintain the shape and structure of the filter body and prevent deformation during the processing of a large number of dense filter holes on the surface of the filter body. With further structural improvements, it can effectively improve the efficiency of debris removal and ensure the efficiency of continuous drilling. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of a thin-walled porous filter;
[0019] Figure 2 This is a front view of the tooling used for machining thin-walled porous filters;
[0020] Figure 3 This is a cross-sectional view of the tooling used for machining thin-walled porous filters;
[0021] Figure 4 This is a perspective view of the tooling used for machining thin-walled porous filters;
[0022] The reference numerals in the attached figures include:
[0023] Base 1, base plate 10, positioning side plate 11, supporting side plate 12, annular through hole 11a, mounting hole 11b, U-shaped hole 12a, supporting shaft 2, annular limiting plate surface 20, rotating cylinder 3, clearance groove 3a, supporting cylinder 30, annular positioning part 31, through hole 31a, pressure ring 4, positioning column 5, rotating bearing 6, wear-resistant ring 7. Detailed Implementation
[0024] The present invention will be described in detail below with reference to specific embodiments.
[0025] This utility model relates to a tooling for processing thin-walled porous filters, mainly used to solve the problem of thin-walled porous filters such as... Figure 1 The filter cylinder shown has a large number of filter holes, which are inconvenient to process, and the filter cylinder structure is prone to deformation during processing.
[0026] like Figure 2 As shown, the main structure of the thin-walled porous filter processing fixture of this utility model includes a base 1, a support shaft 2, a rotating cylinder 3, and a pressure ring 4.
[0027] The base 1 is mainly used for support and positioning. It has a U-shaped structure and includes a base plate 10 and positioning side plates 11 and support side plates 12 located on the top left and right sides of the base plate 10.
[0028] The positioning side plate is mainly used to control the installation position of the support shaft 2 and the rotating drum 3 to ensure that the drilling position can be quickly positioned during processing. The support side plate is mainly used to assist in supporting the support shaft 2 and ensure structural stability. Figure 2 In the process of using a fixed positioning side plate and a supporting side plate, a movable structure design can also be adopted according to actual needs during actual use. For example, a detachable supporting side plate structure can be adopted to facilitate the installation of the filter.
[0029] The positioning side plate 11 is provided with an annular through hole 11a, and the support side plate 12 is provided with an upward-facing U-shaped hole 12a, with the U-shaped hole 12a facing the annular through hole 11a. The support shaft 2 is inserted into the annular through hole 11a at one end facing the positioning side plate 11 and then extends out, with the extended part forming an annular limiting plate surface 20. The other end of the support shaft 2 is inserted into the U-shaped hole 12a.
[0030] Rotary cylinder 3 and pressure ring 4 are sleeved on support shaft 2, with rotary cylinder 3 located on one side of positioning side plate 11 and pressure ring 4 located on one side of support side plate 12.
[0031] The support shaft 2 section where the pressure ring 4 is located is provided with an external thread. The pressure ring 4 is tightened on the external thread and presses against the rotating drum 3.
[0032] The rotating cylinder 3 has horizontally extending and uniformly arranged circular array of clearance slots 3a on its body.
[0033] In actual use, the filter to be drilled is fixed on the rotating drum by the pressure ring 4. The rotating drum 3 is rotated so that a clearance groove 3a is at the top position. A row of filter holes is processed in sequence along the clearance groove 3a. After processing is completed, the rotating drum 3 is rotated to the next row to continue processing. The support of the rotating drum 3 can effectively prevent the filter from deforming during the drilling process.
[0034] The rotating drum 3 is provided with an annular positioning part 31 on the side facing the positioning side plate 11. The annular positioning part 31 is provided with through holes 31a that are respectively connected to each clearance groove 3a.
[0035] A mounting hole 11b is provided at the position directly opposite the through hole 31a at the top of the positioning side plate 11 and the rotating cylinder 3, and a positioning post 5 is provided in the mounting hole 11b;
[0036] The positioning post 5 has a hollow structure. The positioning post 5 extends out of the through hole 31a on one side and can be inserted into the through hole 31a. Its other side is connected to an external positive pressure blower.
[0037] The positioning column 5 structure ensures better positioning of the rotating drum during drilling, preventing it from rotating arbitrarily. Combined with the positive pressure blowing device, it can quickly remove residual debris from the void groove 3a and filter hole in the drilling gap, preventing the debris from having an adverse effect on the drilling.
[0038] As a preferred embodiment, in order to facilitate use and improve the smoothness of structural operation, in this embodiment, the rotating cylinder 3 is provided with a support cylinder 30 that can extend into the annular through hole 11a on the side facing the annular through hole 11a. The support cylinder 30 is inserted into the annular through hole 11a. The outer wall of the support cylinder 30 is rotatably connected to the inner wall of the annular through hole 11a, and a rotary bearing 6 is provided between the support cylinder 30 and the annular through hole 11a.
[0039] A wear-resistant ring 7 is provided between the limiting plate 20 and the positioning side plate 11, and the wear-resistant ring 7 is sleeved on the support cylinder 30.
[0040] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the essence and scope of the technical solutions of this utility model.
Claims
1. A tooling for processing thin-walled porous filters, characterized in that, Includes base (1), support shaft (2), rotating cylinder (3), and pressure ring (4); The base (1) has a U-shaped structure, including a base plate (10) and positioning side plates (11) and supporting side plates (12) located on the top left and right sides of the base plate (10); the positioning side plate (11) is provided with an annular through hole (11a), and the supporting side plate (12) is provided with an upward-facing U-shaped hole (12a), with the U-shaped hole (12a) facing the annular through hole (11a); The support shaft (2) is inserted into the annular through hole (11a) at one end facing the positioning side plate (11) and then extends out, with the extended part forming an annular limiting plate surface (20). The other end of the support shaft (2) is inserted into the U-shaped hole (12a). The rotating cylinder (3) and the pressure ring (4) are sleeved on the support shaft (2), with the rotating cylinder (3) located on one side of the positioning side plate (11) and the pressure ring (4) located on one side of the support side plate (12); The support shaft (2) where the pressure ring (4) is located has an external thread. The pressure ring (4) is tightened on the external thread and presses against the rotating drum (3). The rotating drum (3) has horizontally extending and uniformly arranged circular array of clearance slots (3a) on its body.
2. The tooling for processing a thin-walled porous filter according to claim 1, characterized in that, The rotating drum (3) is provided with an annular positioning part (31) on the side facing the positioning side plate (11), and the annular positioning part (31) is provided with through holes (31a) respectively connected to each clearance groove (3a). A mounting hole (11b) is provided at the position directly opposite the through hole (31a) at the top of the positioning side plate (11) and the rotating cylinder (3), and a positioning post (5) is provided in the mounting hole (11b). The positioning post (5) is a hollow structure. The positioning post (5) extends out of the through hole (31a) and can be inserted into the through hole (31a). Its other side is connected to an external positive pressure blower.
3. The tooling for processing a thin-walled porous filter according to claim 1, characterized in that, The rotating cylinder (3) is provided with a support cylinder (30) on the side facing the annular through hole (11a) that can be inserted into the annular through hole (11a). The support cylinder (30) is inserted into the annular through hole (11a); the outer wall of the support cylinder (30) is rotatably connected to the inner wall of the annular through hole (11a).
4. The tooling for processing a thin-walled porous filter according to claim 3, characterized in that, A rotary bearing (6) is provided between the support cylinder (30) and the annular through hole (11a).
5. The tooling for processing a thin-walled porous filter according to claim 3, characterized in that, A wear-resistant ring (7) is provided between the limiting plate surface (20) and the positioning side plate (11), and the wear-resistant ring (7) is sleeved on the support cylinder (30).