Tool for milling and chamfering retainer ring type parts

Abstract

The utility model relates to a tool for milling and chamfering retainer ring parts, which comprises a base and is technically characterized in that a positioning groove is arranged in the center of the upper surface of the base, a heightening positioning column is arranged in the center of the bottom surface of the positioning groove, and an annular positioning groove is formed between the outer peripheral wall of the heightening positioning column and the inner peripheral wall of the positioning groove. An annular clamping groove surrounding the upper edge of the annular positioning groove is formed in the upper surface of the base, a buffer groove is formed in the root of the inner circumferential wall of the annular clamping groove, a conical radial limiting cover is buckled in the annular positioning groove, a first through hole matched with the heightening positioning column is formed in the center of the conical radial limiting cover, and a gland is additionally arranged above the conical radial limiting cover; a second through hole matched with the heightening positioning column is formed in the center of the gland, the lower edge of the gland is located over the annular clamping groove, and a locking structure is arranged between the gland and the base. The tool is beneficial to improving the machining precision and the production efficiency, meanwhile, the defects such as scratches and grinding marks on the surfaces of products are avoided, the product percent of pass is improved, and the production cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of manufacturing technology of clasp-type parts, specifically to a tooling for milling and chamfering clasp-type parts. Background Technology

[0002] Circlip-type parts (see) Figure 1 , Figure 2 When performing chamfering (see...) Figure 3 There are two traditional processing methods: one is for the operator to use sandpaper, files, and other tools to chamfer the parts. First, the part is fixed in place, and then, relying on experience and feel, the edge is rubbed back and forth at a certain angle and with a certain amount of force to gradually form a chamfer. The other method is for the operator to use a simple, homemade clamp to fix the part, and then use a small electric or pneumatic grinder to chamfer it. This fixture is often just a simple metal or plastic block, holding the part in place with screws, slots, etc., while the grinder moves along the edge of the clamp to perform the chamfering.

[0003] Both of the above traditional processing methods have the following problems:

[0004] 1. Low machining accuracy: Manual grinding and simple tooling make it difficult to guarantee the dimensional consistency and angular accuracy of chamfers. Due to the reliance on the skills and experience of the operators, chamfers produced by different workers may vary greatly, failing to meet the requirements of high-precision parts.

[0005] 2. Low production efficiency: Whether it is manual grinding or grinding with simple tooling, the processing speed is relatively slow. When grinding manually, the physical strength and energy of the operator limit the working time and efficiency; although simple tooling has improved the situation, it is still far behind automated and specialized processing equipment, making it difficult to meet the needs of large-scale production, thus increasing the production cycle and cost of products.

[0006] 3. Poor surface finish: Scratches, abrasion marks, and other defects are easily left on the surface of the parts, affecting their surface roughness. This not only reduces the aesthetics of the parts but may also cause them to become stress concentration points during subsequent use, reducing their service life. Utility Model Content

[0007] The purpose of this utility model is to provide a structurally reasonable and reliable tooling for milling and chamfering of ring-type parts, which solves the above problems, improves machining accuracy and production efficiency, avoids defects such as scratches and abrasions on the product surface, increases product qualification rate, and reduces production costs.

[0008] The technical solution of this utility model is:

[0009] A tooling for milling and chamfering of retaining ring-type parts includes a base. The key technical features are: a positioning groove is provided at the center of the upper surface of the base, and a raised positioning post is provided at the center of the bottom surface of the positioning groove; an annular positioning groove is formed between the outer peripheral wall of the raised positioning post and the inner peripheral wall of the positioning groove; an annular retaining groove is provided on the upper surface of the base, surrounding the upper edge of the annular positioning groove; a buffer groove is provided at the root of the inner peripheral wall of the annular retaining groove; a conical radial limiting cover is fastened into the annular positioning groove; a first through hole that mates with the raised positioning post is provided at the center of the conical radial limiting cover; a pressure cover is provided above the conical radial limiting cover; a second through hole that mates with the raised positioning post is provided at the center of the pressure cover; the lower edge of the pressure cover is located directly above the annular retaining groove; and a locking structure is provided between the pressure cover and the base.

[0010] The aforementioned tooling for milling and chamfering of clasp-type parts includes a locking structure comprising multiple threaded holes fixed to the bottom surface of an annular positioning groove, a fixing hole on the pressure cap corresponding to the threaded holes, and a locking bolt connecting the threaded holes and the fixing hole. The conical radial limiting cap is provided with a clearance through hole corresponding to the locking bolt.

[0011] The aforementioned tooling for milling and chamfering of ring-type parts has an annular groove whose outer peripheral wall is a tapered surface that is narrower at the top and wider at the bottom.

[0012] The aforementioned tooling for milling and chamfering of clasp-type parts has a tapered radial limiting cover whose outer peripheral wall is tapered and wider at the top than at the bottom. The outer peripheral wall of the tapered radial limiting cover and the inner peripheral wall of the annular groove form a radial clamping space corresponding to the part to be processed.

[0013] The aforementioned tooling for milling and chamfering of clasp-type parts includes a base with multiple mounting holes on its edge.

[0014] The beneficial effects of this utility model are:

[0015] Based on the characteristics of the parts, on the one hand, new tooling is used to overcome the limitations of relying on operator skills and experience, enabling fixed production and processing methods and ensuring repeatability of part processing; on the other hand, milling is performed using a four-axis machining center instead of manual grinding, greatly improving the efficiency and accuracy stability of part processing. Specifically, this includes the following features:

[0016] 1. High efficiency and convenience. Compared with traditional manual operation methods or tools with poor versatility, this fixture can quickly and accurately install and disassemble parts, greatly shortening operation time and improving work efficiency.

[0017] 2. Precise positioning. The tooling design ensures that parts can be accurately installed in the predetermined position during operation, effectively avoiding positional deviations caused by improper operation, guaranteeing the quality of part processing, and improving the yield rate.

[0018] 3. Protect parts. During installation and disassembly, the tooling can apply force evenly to the parts, avoiding excessive local force that could cause scratches, indentations, or other damage to the parts' surface, thus greatly improving the product's surface quality.

[0019] 4. Multifunctionality. By simply adjusting or replacing some parts, this tooling can be used for a variety of parts of different specifications, which has strong versatility and reduces the management and procurement costs for enterprises caused by a wide variety of tools. Attached Figure Description

[0020] Figure 1 This is a structural diagram of a clasp-type component;

[0021] Figure 2 yes Figure 1 Side view;

[0022] Figure 3 This is a magnified view of a portion of a clasp-type component;

[0023] Figure 4 This is a schematic diagram of the structure of this utility model;

[0024] Figure 5 This is a structural schematic diagram of the base of this utility model;

[0025] Figure 6 yes Figure 5 Top view;

[0026] Figure 7 yes Figure 5 Enlarged view of section A in the middle;

[0027] Figure 8 This is a diagram showing the usage state of this utility model.

[0028] In the diagram: 1. Locking bolt, 2. Pressure cap, 3. Conical radial limit cap, 4. Base, 401. Heightening positioning post, 402. Annular positioning groove, 403. Threaded hole, 404. Mounting hole, 405. Annular slot, 406. Buffer groove, 5. Snap ring type parts. Detailed Implementation

[0029] The present invention will be described in detail with reference to the accompanying drawings.

[0030] like Figures 1 to 8 As shown, the tooling for milling and chamfering of the clasp-type parts includes a base 4, and the edge of the base 4 is provided with multiple mounting holes 404.

[0031] The base 4 has a positioning groove at the center of its upper surface and a heightening positioning post 401 at the center of the bottom surface of the positioning groove. An annular positioning groove 402 is formed between the outer peripheral wall of the heightening positioning post 401 and the inner peripheral wall of the positioning groove.

[0032] The upper surface of the base 4 is provided with an annular groove 405 arranged around the upper edge of the annular positioning groove 402, and a buffer groove 406 is provided at the root of the inner peripheral wall of the annular groove 405. In this embodiment, the outer peripheral wall of the annular groove 405 is a conical surface that is narrower at the top and wider at the bottom.

[0033] A conical radial limiting cover 3 is fastened in the annular positioning groove 402. The center of the conical radial limiting cover 3 has a first through hole that mates with the heightening positioning post 401. In this embodiment, the outer peripheral wall of the conical radial limiting cover 3 is a conical surface that is wider at the top and narrower at the bottom. The outer peripheral wall of the conical radial limiting cover 3 and the inner peripheral wall of the annular groove 405 form a radial clamping space corresponding to the workpiece to be processed.

[0034] Above the conical radial limiting cover 3, a pressure cover 2 is provided. The center of the pressure cover 2 has a second through hole that mates with the heightening positioning post 401. The lower edge of the pressure cover 2 is located directly above the annular groove 405. A locking structure is provided between the pressure cover 2 and the base 4. In this embodiment, the locking structure includes multiple threaded holes 403 fixed to the bottom surface of the annular positioning groove 402, a fixing hole on the pressure cover 2 corresponding to the threaded holes 403, and a locking bolt 1 connecting the threaded holes 403 and the fixing hole. The conical radial limiting cover 3 has a clearance through hole corresponding to the locking bolt 1.

[0035] Working principle:

[0036] See Figure 8 The circlip-like component 5 to be processed is placed in the annular groove 405 of the base 4; then, the conical radial limiting cover 3 is inserted into the annular positioning groove 402 of the base 3, using the inner support of the conical radial limiting cover 3 to achieve radial positioning; then, the pressure cover 2 is pressed on top of the component, exposing the part that needs to be milled; finally, the locking bolt 1 is used to press the component tightly in the fixture, waiting for the four-axis machining center to perform milling. After completing the chamfering milling of one side, the component is flipped over and repositioned for further processing.

[0037] The embodiments of this utility model have been described in detail above, but the content described is only a preferred embodiment of this utility model and should not be considered as limiting the scope of implementation of this utility model. All equivalent changes and improvements made within the scope of this utility model should still fall within the scope of this patent.

Claims

1. A jig for chamfering a collar type component by milling, comprising a base, characterized in that: The base has a positioning groove at its center on its upper surface, and a heightening positioning post at the center of the bottom surface of the positioning groove. An annular positioning groove is formed between the outer peripheral wall of the heightening positioning post and the inner peripheral wall of the positioning groove. The base has an annular slot arranged around the upper edge of the annular positioning groove. A buffer groove is provided at the root of the inner peripheral wall of the annular slot. A conical radial limiting cover is fastened in the annular positioning groove. The center of the conical radial limiting cover has a first through hole that mates with the heightening positioning post. A pressure cover is provided above the conical radial limiting cover. The center of the pressure cover has a second through hole that mates with the heightening positioning post. The lower edge of the pressure cover is located directly above the annular slot. A locking structure is provided between the pressure cover and the base.

2. The jig for chamfering of a collar type component by milling according to claim 1, characterized in that: The locking structure includes multiple threaded holes fixed to the bottom surface of the annular positioning groove, a fixing hole on the pressure cover corresponding to the threaded holes, and a locking bolt connected between the threaded holes and the fixing hole. The conical radial limiting cover is provided with a clearance through hole corresponding to the locking bolt.

3. The jig for chamfering of a collar type component by milling according to claim 1, characterized in that: The outer peripheral wall of the annular groove is a conical surface that is narrower at the top and wider at the bottom.

4. The jig for chamfering of a collar type component according to claim 1, wherein: The outer peripheral wall of the conical radial limiting cover is conical and wider at the top than at the bottom. The outer peripheral wall of the conical radial limiting cover and the inner peripheral wall of the annular groove form a radial clamping space corresponding to the workpiece to be processed.

5. The jig for chamfering of a collar type component by milling according to claim 1, characterized in that: The base edge is provided with multiple mounting holes.

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