Fluoroplastic notch processing device with thin wall characteristic
By designing an automated fluoroplastic cutting processing device, and utilizing templates and guide grooves to guide the cutting blade stroke, the problems of low safety, low efficiency, and high cost in fluoroplastic retaining ring cutting processing have been solved, achieving efficient, safe, and low-cost multi-specification adaptable cutting processing.
Patent Information
- Application Number
- CN202520002280.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-02
- Publication Date
- 2025-12-09
- Estimated Expiration
- 2035-01-02
AI Technical Summary
Existing fluoroplastic retaining ring cutting processes suffer from low safety, low production efficiency, high cost, and poor versatility. In particular, the cutting of thin-walled retaining rings is prone to deformation and inconsistent specifications, requiring specialized tooling.
A fluoroplastic cutting processing device was designed. The device uses a first template and a second template to position and install a positioning ring. Combined with the cutting groove and guide groove, the cutting stroke is guided to achieve automated cutting processing. By changing the positioning ring to adapt to different specifications of retaining rings, the danger and skill requirements of manual operation are reduced, production efficiency is improved, and tooling costs are reduced.
It enables safe and efficient cutting of fluoroplastic retaining rings, reduces the skill requirements of operators, improves production efficiency, reduces tooling costs, and can adapt to the processing of retaining rings of different specifications, thus improving the versatility of processing.
Smart Images
Figure CN223643793U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of sealing ring cutting technology, specifically relating to a fluoroplastic sealing ring cutting device with thin-walled characteristics. Background Technology
[0002] During the sliding sealing process, the sealing ring may be squeezed into the gap between the sealing barrel and the shaft, causing the seal to fail. Therefore, fluoroplastic retaining rings need to be installed on both sides of the sealing ring to prevent it from being squeezed into the gap between the sealing barrel and the shaft, thereby achieving a better sealing effect.
[0003] Due to the dimensional limitations of the shaft's end faces, fluoroplastic retaining rings cannot be directly installed onto the shaft. Before installation, they need to be cut at a specific angle to facilitate installation. Existing cutting fixtures for retaining ring cutting require the retaining ring to be placed inside the fixture, with the operator holding a blade and cutting from the side to complete the cut. The retaining ring is then removed. This hand-operated blade operation is inherently dangerous. Furthermore, for thin-walled retaining rings, the cut is easily deformed under stress during processing, leading to product scrap. Therefore, this method demands high operator skill levels, resulting in long processing cycles and hindering production efficiency. Additionally, specialized fixtures are required for processing fluoroplastic retaining rings with the same cutting angle but different specifications, further increasing production costs.
[0004] Therefore, how to provide a cutting device for fluoroplastic sealing rings that is efficient and versatile is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content
[0005] In view of this, the present invention provides a fluoroplastic cutting processing device with thin-walled features, which eliminates the need for manual hand-held cutting, making production efficient and safe. By changing the positioning rings of different specifications, it can achieve cutting processing of fluoroplastic retaining rings of different specifications, which is highly versatile and reduces processing costs.
[0006] To achieve the above objectives, this utility model adopts the following technical solution: a fluoroplastic cutting device with thin-walled characteristics, comprising:
[0007] The first template has a cutting groove on its side and a screw hole in its middle. Positioning holes are provided on both sides of the first template corresponding to the screw hole.
[0008] The positioning guide post has two sets, and each set is fixed in the positioning hole in a corresponding manner.
[0009] The second template has a guide groove on its side end corresponding to the extension direction of the cutter groove. The guide groove and the cutter groove are used to guide the working stroke of the cutter. The second template has a guide hole, and the positioning guide post is fitted into the guide hole with a clearance fit.
[0010] A positioning ring is used to support and limit the workpiece to be processed. The positioning ring is provided with a clearance hole through which a clearance positioning guide post passes. The positioning ring is positioned between the first template and the second template. The second template and the positioning ring are provided with bolt holes.
[0011] A connecting bolt passes through a bolt hole and connects to a screw hole, coaxially fixing the first template, the positioning ring, and the second template.
[0012] The technical advantages of this invention are as follows: A positioning ring is positioned and installed using a first template and a second template. The positioning ring supports and limits the workpiece to be processed. Simultaneously, the cutting groove on the first template and the guide groove on the second template guide the working stroke of the cutting tool, thereby achieving a pre-defined angle cut on the workpiece. In practice, this device allows production staff to operate a drilling machine to complete the processing, eliminating the need for personnel to manually insert the cutting tool from the side. This significantly reduces production risks, lowers the skill requirements for operators, and improves production efficiency. For processing retaining rings with significantly different sizes, a corresponding matching positioning ring can be replaced to achieve cutting of fluoroplastic retaining rings of different specifications, reducing tooling manufacturing costs and making production more convenient.
[0013] Preferably, the cutting groove and the guide groove are inclined to the axial direction of the screw hole, and the groove width of the cutting groove and the groove width of the guide groove are the same.
[0014] The resulting technical effect is that the cutting groove and the guide groove are continuous in the direction, thus ensuring the guiding process of the cutting blade, that is, completing the cutting process of the fluoroplastic retaining ring.
[0015] Preferably, one end of the positioning guide post is provided with an arc-shaped guide head, the outer wall surface of the positioning guide post is respectively clearance-fitted with the inner wall surface of the clearance hole and the guide hole, the other end plane of the positioning guide post is parallel to the end face of the first template, and the end of the arc-shaped guide head extends out of the second template by 3mm-5mm.
[0016] The resulting technical effect is that, considering the issue of assembling and disassembling the positioning guide post, the arc-shaped guide head on it facilitates the installation of the positioning guide post; and considering the assembly accuracy, the arc-shaped guide head of the positioning guide post needs to extend a certain distance beyond the second template.
[0017] Preferably, the two end faces of the positioning ring are respectively attached to the end faces of the first template and the second template, the thickness of the positioning ring is greater than the thickness of the workpiece to be processed, the workpiece to be processed is a ring-shaped part, and there is a gap between the inner wall of the workpiece to be processed and the outer wall of the positioning ring.
[0018] The resulting technical effect is that the thickness of the positioning ring is larger than the thickness of the workpiece to be processed, and the workpiece to be processed is fitted with the positioning ring with a clearance, so that the workpiece to be processed has a certain amount of slight axial and radial movement during the cutting process. This helps the material near the cutting edge to move and avoids the problem of out-of-tolerance cutting dimensions caused by material accumulation at the cutting edge of the finished product.
[0019] Preferably, the connecting bolt is a cylindrical head hexagon socket head cap screw, the head of the connecting bolt is limited to the side of the second template away from the first template, and the shank of the connecting bolt is threadedly connected to the screw hole.
[0020] The resulting technical effect is that the first template, the positioning ring, and the second template are connected using connecting bolts, eliminating the need for nuts for fixing, and making it more convenient to assemble and disassemble the positioning ring and the workpiece to be processed.
[0021] Preferably, the positioning hole and the screw hole are arranged axially parallel, and the outer wall of the positioning guide post is interference-fitted with the inner wall of the positioning hole.
[0022] The resulting technical effect is that, in order to ensure the cutting angle of the product after the cutting process is completed, two positioning guide posts are set to ensure the fitting accuracy of the tooling parts, that is, to ensure the continuity of the groove direction of the cutting groove and the guide groove and avoid misalignment. The positioning guide posts are interference-fitted with the positioning holes on the first template to facilitate the basic fixation of the positioning guide posts. Attached Figure Description
[0023] Figure 1 This is a structural diagram of a fluoroplastic cutting device with thin-walled characteristics according to the present invention.
[0024] Figure 2 This is a front view of a fluoroplastic cutting device with thin-walled characteristics according to the present invention.
[0025] Figure 3 This is a series of product structure diagrams for a fluoroplastic cutting device with thin-walled characteristics according to this utility model;
[0026] Figure 4 This is a set of diagrams showing the first template structure of a fluoroplastic cutting device with thin-walled characteristics according to this utility model;
[0027] Figure 5 This is a set of diagrams showing the positioning ring structure of a fluoroplastic cutting device with thin-walled characteristics according to this utility model;
[0028] Figure 6 This is a set of diagrams showing the second template structure of a fluoroplastic cutting device with thin-walled characteristics according to this utility model;
[0029] Figure 7 This is a structural diagram of the positioning guide post of a fluoroplastic cutting device with thin-walled characteristics according to the present invention.
[0030] 1 First template, 2 Cutting groove, 3 Screw hole, 4 Positioning hole, 5 Positioning guide post, 51 Arc guide head, 6 Second template, 7 Guide groove, 8 Guide hole, 9 Positioning ring, 10 Workpiece to be processed, 11 Alternating hole, 12 Bolt hole, 13 Connecting bolt, 14 Cut. Detailed Implementation
[0031] 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.
[0032] See appendix to this utility model Figures 1 to 7 According to an embodiment of the present invention, a fluoroplastic cutting device with thin-walled characteristics includes:
[0033] The first template 1 has a cutting groove 2 on its side end, a screw hole 3 in the middle of the first template 1, and positioning holes 4 on both sides of the first template 1 corresponding to the screw hole.
[0034] Positioning guide post 5, there are two sets of positioning guide posts 5 and they are fixed in the positioning holes 4 respectively;
[0035] The second template 6 has a guide groove 7 on its side end corresponding to the extension direction of the cutter groove 2. The guide groove 7 and the cutter groove 2 are used to guide the working stroke of the cutter. The second template 6 has a guide hole 8, and the positioning guide post 5 is fitted into the guide hole 8 with a clearance fit. The function of the cutter groove 2 and the guide groove 7 is to provide cutting angle guidance during the cutting process. The first template and the second template limit the fluoroplastic retaining ring during the cutting process to prevent it from moving significantly and affecting the cutting size.
[0036] Positioning ring 9 is used to support and limit the workpiece 10 to be processed. Positioning ring 9 is provided with a clearance hole 11 through which the clearance positioning guide post 5 passes. Positioning ring 9 is positioned between the first template 1 and the second template 6. Bolt holes 12 are provided on the second template 6 and positioning ring 9.
[0037] Connecting bolt 13 passes through bolt hole 12 and connects with screw hole 3, and coaxially fixes first template 1, positioning ring 9 and second template 6.
[0038] In some other embodiments, the cutting groove 2 and the guide groove 7 are inclined to the axial direction of the screw hole 3, and the groove width of the cutting groove 2 and the groove width of the guide groove 7 are the same to ensure the cutting size and angle.
[0039] In some other embodiments, one end of the positioning guide post 5 is provided with an arc-shaped guide head 51, the outer wall surface of the positioning guide post 5 is respectively clearance-fitted with the inner wall surface of the clearance hole 11 and the guide hole 8, the other end plane of the positioning guide post 5 is parallel to the end face of the first template 1, and the end of the arc-shaped guide head 51 extends out of the second template 5mm.
[0040] Two sets of positioning guide pillars ensure the assembly accuracy of the first template and the second template, thereby ensuring that the cutting groove and the guide groove are aligned in the same direction and avoiding misalignment that could cause the product processing angle to exceed tolerance.
[0041] Cylindrical guides are easy to assemble and disassemble. The assembly accuracy of the positioning guide is determined by the distance of the end protrusion, thereby meeting the tooling requirements.
[0042] In some other specific embodiments, the two end faces of the positioning ring 9 are respectively attached to the end faces of the first template 1 and the second template 6. The thickness of the positioning ring 9 is greater than the thickness of the workpiece 10 to be processed. The workpiece 10 to be processed is a ring-shaped part. There is a gap between the inner wall of the workpiece 10 to be processed and the outer wall of the positioning ring 9, which facilitates installation and disassembly. The workpiece to be processed and the positioning ring are in clearance fit, so that the size expansion during the product processing will not occur due to the fit. It also avoids the impact of the outer circle size of the positioning ring being out of tolerance on the assembly of the workpiece to be processed.
[0043] In some other specific embodiments, the connecting bolt 13 is a cylindrical head hexagon socket head cap screw, the head of the connecting bolt 13 is limited to the side of the second template 6 away from the first template 1, and the shank of the connecting bolt 13 is threadedly connected to the screw hole 3.
[0044] In other embodiments, the positioning hole 4 and the screw hole 3 are arranged axially parallel, and the outer wall of the positioning guide post 5 is interference-fitted with the inner wall of the positioning hole 4.
[0045] Implementation steps of the fluoroplastic retaining ring cutting device:
[0046] 1. First, assemble the first template, positioning ring, and positioning guide post. Then, assemble the tooling using the positioning guide post and fix and lock the tooling with connecting bolts. Fix the cutting tool for machining the cut onto the drilling machine. Then, place the device on the drilling machine table and fix it with an open vise. Adjust the tooling position to ensure that the cutting tool angle is consistent with the cutting angle of the tooling.
[0047] 2. After the tooling position is accurately located, disassemble the second template and place the retaining ring to be processed onto the positioning ring, ensuring that the thickness of the positioning ring is slightly higher than the thickness of the fluoroplastic retaining ring by about 0.1mm to ensure that the fluoroplastic retaining ring has a certain displacement. Then, complete the tooling assembly by using the second template through the positioning guide post, and complete the fixing and locking of the tooling by connecting bolts. The production personnel operate the drilling machine to slowly lower the cutting blade into the cutting groove and guide groove, and finally realize the cutting process of the fluoroplastic retaining ring.
[0048] The apparatus and methods disclosed in the embodiments are described simply because they correspond to the methods disclosed in the embodiments. For relevant details, please refer to the method section.
[0049] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A fluoroplastic cutting device with thin-walled characteristics, characterized in that, include: The first template (1) has a cutting groove (2) on its side end, a screw hole (3) in the middle of the first template (1), and positioning holes (4) on both sides of the first template (1) corresponding to the screw hole. Positioning guide post (5), there are two sets of positioning guide posts (5) and they are fixed in the positioning holes (4) respectively; The second template (6) has a guide groove (7) on its side end corresponding to the extension direction of the cutter groove (2). The guide groove (7) and the cutter groove (2) are used to guide the working stroke of the cutter. The second template (6) has a guide hole (8), and the positioning guide post (5) is fitted with the guide hole (8) with a clearance. Positioning ring (9), the positioning ring (9) is used to support and limit the workpiece (10) to be processed, the positioning ring (9) is provided with a clearance hole (11) to avoid the positioning guide post (5) passing through, the positioning ring (9) is positioned and connected between the first template (1) and the second template (6), the second template (6) and the positioning ring (9) are provided with bolt holes (12); A connecting bolt (13) passes through a bolt hole (12) and connects to a screw hole (3) to coaxially fix the first template (1), the positioning ring (9), and the second template (6).
2. The fluoroplastic cutting device with thin-walled characteristics according to claim 1, characterized in that, The cutting groove (2) and the guide groove (7) are inclined to the axial direction of the screw hole (3), and the groove width of the cutting groove (2) and the groove width of the guide groove (7) are the same.
3. The fluoroplastic cutting device with thin-walled characteristics according to claim 1, characterized in that, One end of the positioning guide post (5) is provided with an arc guide head (51). The outer wall surface of the positioning guide post (5) is in clearance fit with the inner wall surface of the clearance hole (11) and the guide hole (8). The plane of the other end of the positioning guide post (5) is parallel to the end face of the first template (1). The end of the arc guide head (51) extends out of the second template by 3mm-5mm.
4. The fluoroplastic cutting device with thin-walled characteristics according to claim 1, characterized in that, The two end faces of the positioning ring (9) are respectively attached to the end faces of the first template (1) and the second template (6). The thickness of the positioning ring (9) is greater than the thickness of the workpiece (10) to be processed. The workpiece (10) to be processed is a ring-shaped part. There is a gap between the inner wall of the workpiece (10) to be processed and the outer wall of the positioning ring (9).
5. The fluoroplastic cutting device with thin-walled characteristics according to claim 1, characterized in that, The connecting bolt (13) is a cylindrical head hexagonal socket head cap screw. The head of the connecting bolt (13) is limited to the side of the second template (6) away from the first template (1). The shank of the connecting bolt (13) is threadedly connected to the screw hole (3).
6. The fluoroplastic cutting device with thin-walled characteristics according to claim 1, characterized in that, The positioning hole (4) and the screw hole (3) are arranged axially parallel, and the outer side wall of the positioning guide post (5) is interference-fitted with the inner side wall of the positioning hole (4).