A clamp for plane processing of spring retaining ring and use method thereof

Abstract

A clamp for plane processing of a spring retaining ring and a method for using the clamp belong to the technical field of spring retaining ring processing. A positioning shaft is provided on the upper surface of the base, a clamping sleeve is provided outside the positioning shaft, a placement groove is provided on the upper surface, and the upper end is connected to a pressure cover. The method is as follows: place the base on a workbench; place the spring retaining ring in the placement groove; place the pressure cover on the positioning shaft and align the spring retaining ring to fix it; put the clamping sleeve on the outside of the positioning shaft and perform preliminary installation; close the clamping sleeve so that the inner wall fits the outer wall of the spring retaining ring; fasten and fix the clamping sleeve to the base; remove the pressure cover; process one plane of the spring retaining ring; turn the spring retaining ring over after the clamping sleeve is in a free state; repeat the above steps to process another plane of the spring retaining ring. The present invention not only provides a stable clamping force, but also avoids the problem of clamping position interference in traditional circumferential clamping. It improves processing efficiency, reduces processing difficulty, and improves the processing qualification rate of products.

Description

Technical Field

[0001] The invention relates to a clamp for plane processing of a spring retaining ring and a use method thereof, belonging to the technical field of spring retaining ring processing. Background Art

[0002] The spring retaining ring is a spiral spring part, and the upper and lower surfaces require strict flatness. The upper and lower surfaces of the spring retaining ring need to be ground during processing. The traditional plane processing method is to glue and press the spring retaining ring with 502 glue before processing. However, the stability of the adhesive installation is poor, and the spring cannot be kept in a stable state when processing the upper and lower surfaces of the spring retaining ring, resulting in the processed parts not meeting the design accuracy requirements. The spring retaining ring is prone to debonding and flying during processing, and the spring retaining ring needs to be debonded after processing. Since the rigidity of the spring retaining ring is extremely weak, the debonding process is likely to cause deformation of the parts, resulting in low processing efficiency and high scrap rate, affecting the company's production progress and processing costs.

[0003] Therefore, an efficient and stable processing solution is urgently needed to ensure the stable production of spring retaining rings. Summary of the invention

[0004] In order to solve the problems existing in the background technology, the present invention provides a clamp for plane processing of a spring retaining ring and a use method thereof.

[0005] To achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a clamp for plane processing of a spring retaining ring, comprising a base, a clamping sleeve, a pressure cover and a positioning shaft; a positioning shaft is provided in the middle of the upper surface of the base, a clamping sleeve is provided on the outer side of the positioning shaft, the clamping sleeve is arranged on the base, a placement groove is provided at the edge of the upper surface of the positioning shaft, and the upper end of the positioning shaft is detachably fixedly connected to the pressure cover.

[0006] A method for using a clamp for plane processing of a spring retaining ring of the present invention comprises the following steps:

[0007] S1: Place the base on the workbench;

[0008] S2: Place the spring retaining ring in the placement groove of the positioning shaft;

[0009] S3: Place the gland on the upper end of the positioning shaft and align the clamping ring with the spring retaining ring and fix it;

[0010] S4: Put the clamping sleeve on the outside of the positioning shaft and perform preliminary installation on the base through fixing bolts;

[0011] S5: Tighten the clamping bolt to close the opening of the clamping sleeve, so that the sleeve body is tightened inward until the inner wall of the sleeve body fits with the outer wall of the spring retaining ring;

[0012] S6: Tighten the fixing bolts to fasten the clamping sleeve and the base;

[0013] S7: Remove the gland;

[0014] S8: Processing a plane of the spring retaining ring;

[0015] S9: Loosen the fixing bolts and the clamping bolts to make the clamping sleeve free and then turn over the spring retaining ring;

[0016] S10: Repeat S2-S8 to process another plane of the spring retaining ring.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The present invention compacts the spring retaining ring with a gland, and performs single-layer circumferential clamping of the spring retaining ring by cooperating with a clamping boss and a clamping sleeve. In the process of single-layer circumferential clamping, a stable clamping force is provided, so that the parts can be processed stably and efficiently; and the problem of clamping position interference caused by shape errors that may exist between the upper and lower layers of the parts in traditional circumferential clamping is avoided. The processing efficiency is improved, the processing difficulty is reduced, the processing qualification rate of the product is improved, and the processing quality and efficiency can be improved by more than 5 times. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural split diagram of the present invention;

[0020] Figure 2 yes Figure 1 A top view of

[0021] Figure 3 yes Figure 2 BB cross-sectional view;

[0022] Figure 4 yes Figure 3 Enlarged view of point A. DETAILED DESCRIPTION

[0023] The technical solution of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0024] A clamp for plane processing of a spring retaining ring comprises a base 1, a clamping sleeve 2, a pressure cover 3 and a positioning shaft 9; a positioning shaft 9 coaxially arranged and integrally formed therewith is provided in the middle of the upper surface of the base 1, a clamping sleeve 2 is sleeved on the outer side of the positioning shaft 9, the clamping sleeve 2 is arranged on the base 1, and a placement groove 16 coaxially arranged therewith is provided at the edge of the upper surface of the positioning shaft 9, and the placement groove 16 is used to place the spring retaining ring 5; the upper end of the positioning shaft 9 is detachably fixedly connected to the pressure cover 3, specifically: the positioning shaft 9 and the middle of the pressure cover 3 are correspondingly provided with internal threaded holes, and mounting bolts 4 are screwed into the internal threaded holes.

[0025] The clamping sleeve 2 includes a sleeve body 6 and a fixing bolt 7; the sleeve body 6 is a ring structure with an opening 15, the sleeve body 6 is arranged on the base 1, and the sleeve body 6 is sleeved on the outside of the positioning shaft 9; the opening 15 is split and closed by the clamping bolt 8, specifically: both ends of the opening 15 are provided with mounting threaded holes, and the mounting threaded holes can be split and closed by the clamping bolt 8; the upper surface of the base 1 is evenly distributed along its circumference with a plurality of fixing threaded holes 1, and the upper surface of the sleeve body 6 is evenly distributed along its circumference with a plurality of fixing threaded holes 2 that penetrate its thickness direction, and the plurality of fixing threaded holes 2 are arranged one-to-one with the plurality of fixing threaded holes, and the sleeve body 6 and the base 1 are connected by the fixing bolts 7 that are respectively screwed into the corresponding fixing threaded hole 1 and the corresponding fixing threaded hole 2.

[0026] The outer wall of the sleeve body 6 is evenly provided with a plurality of elastic grooves 11 along its circumference, so that the sleeve body 6 can be easily contracted when subjected to the clamping force of the clamping bolt 8, so as to generate a uniform axial clamping force on the spring retaining ring 5 processed inside it.

[0027] The height of the positioning shaft 9 is 0.1 mm less than the height of the spring retaining ring 5 , thereby ensuring that the plane processing of the spring retaining ring 5 is effectively performed.

[0028] The outer wall of the positioning shaft 9 is provided with a clamping boss 10 along its circumference, and the clamping boss 10 is arranged in the placement groove 16. The upper layer of the spring retaining ring 5 is clamped by the cooperation between the clamping boss 10 and the clamping sleeve 2, and the lower layer of the spring retaining ring 5 is avoided through the space under the clamping boss 10 to avoid clamping interference and ensure stable and reliable clamping.

[0029] The outer edge of the lower surface of the pressure cover 3 is provided with a clamping ring 14 coaxially arranged therewith. Compared with clamping the entire surface, it is more economical to grind only the clamping ring 14.

[0030] A slot 12 is provided in the middle of the upper surface of the positioning shaft 9 , and an insert block 13 is provided in the middle of the lower surface of the gland 3 . The insert block 13 is matched and inserted into the slot 12 , so as to facilitate the rapid positioning of the clamping ring 14 of the gland 3 and the spring retaining ring 5 .

[0031] A method for using a clamp for plane processing of a spring retaining ring of the present invention comprises the following steps:

[0032] S1: Place the base 1 on the center of the worktable of the circular table surface grinder;

[0033] S2: placing the spring retaining ring 5 in the placement groove 16 of the positioning shaft 9;

[0034] S3: Place the gland 3 on the upper end of the positioning shaft 9, align the clamping ring 14 with the spring retaining ring 5, and tighten it with the mounting bolts 4, and gently flatten the spring retaining ring 5 with the gland 3;

[0035] S4: Put the clamping sleeve 2 on the outside of the positioning shaft 9, and lightly pre-tighten it with the base 1 through the fixing bolts 7 for preliminary installation;

[0036] S5: Tighten the clamping bolt 8 to close the opening 15 of the clamping sleeve 2, tighten the sleeve body 6 inward until the inner wall of the sleeve body 6 fits the outer wall of the spring retaining ring 5, and press the upper half of the spring retaining ring 5 tightly onto the positioning shaft 9, so as to achieve the purpose of clamping the spring retaining ring 5;

[0037] S6: Tighten the fixing bolts 7 to fasten the clamping sleeve 2 and the base 1;

[0038] S7: Loosen the mounting bolts 4 and remove the gland 3;

[0039] S8: Processing a plane of the spring retaining ring 5;

[0040] S9: Loosen the fixing bolt 7 and the clamping bolt 8, and then turn over the spring retaining ring 5 after the clamping sleeve 2 is in a free state;

[0041] S10: Repeat S2-S8 to process another plane of the spring retaining ring 5.

[0042] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations within the meaning and range of equivalents of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0043] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A clamp for plane processing of a spring retaining ring, comprising a base (1), a clamping sleeve (2), a gland (3) and a positioning shaft (9); a positioning shaft (9) is provided in the middle of the upper surface of the base (1), a clamping sleeve (2) is sleeved on the outer side of the positioning shaft (9), the clamping sleeve (2) is arranged on the base (1), a placement groove (16) is provided at the edge of the upper surface of the positioning shaft (9), the upper end of the positioning shaft (9) is detachably fixedly connected to the gland (3), the clamping sleeve (2) comprises a sleeve body (6) and a fixing bolt (7); the sleeve body (6) is a ring structure provided with an opening (15), the sleeve body (6) The base (1) is arranged on the base, and the sleeve (6) is sleeved on the outer side of the positioning shaft (9); the opening (15) is split and closed by a clamping bolt (8); the upper surface of the base (1) is provided with a plurality of fixing threaded holes 1, and the upper surface of the sleeve (6) is provided with a plurality of fixing threaded holes 2, the plurality of fixing threaded holes 2 are arranged in a one-to-one correspondence with the plurality of fixing threaded holes, and the sleeve (6) and the base (1) are connected by fixing bolts (7) respectively screwed into the corresponding fixing threaded holes 1 and the corresponding fixing threaded holes 2; the outer edge of the lower surface of the gland (3) is provided with a clamping ring (14) coaxially arranged therewith; Features: The method for using the clamp for plane processing of spring retaining ring comprises the following steps: S1: Place the base (1) on a workbench; S2: Place the spring retaining ring (5) in the placement groove (16) of the positioning shaft (9); S3: Place the gland (3) on the upper end of the positioning shaft (9), align the clamping ring (14) with the spring retaining ring (5), and then fix it; S4: The clamping sleeve (2) is placed on the outer side of the positioning shaft (9) and is preliminarily mounted on the base (1) by fixing bolts (7); S5: Tighten the clamping bolt (8) to close the opening (15) of the clamping sleeve (2), so that the sleeve body (6) is tightened inwardly until the inner wall of the sleeve body (6) fits the outer wall of the spring retaining ring (5); S6: Tighten the fixing bolts (7) to fix the clamping sleeve (2) and the base (1); S7: Remove the gland (3); S8: machining a plane of the spring retaining ring (5); S9: Loosen the fixing bolt (7) and the clamping bolt (8) to make the clamping sleeve (2) free and then turn over the spring retaining ring (5); S10: Repeat S2-S8 to process the other plane of the spring retaining ring (5).

2. A clamp for plane processing of a spring retaining ring according to claim 1, Features: The outer wall of the sleeve body (6) is provided with a plurality of elastic grooves (11).

3. A clamp for plane processing of a spring retaining ring according to claim 1 or 2, Features: The height of the placement groove (16) is smaller than the height of the spring retaining ring (5).

4. A clamp for plane machining of a spring retaining ring according to claim 3, Features: The outer wall of the positioning shaft (9) is provided with a clamping boss (10) along its circumference, and the clamping boss (10) is arranged in the placement groove (16).

5. A clamp for plane processing of a spring retaining ring according to claim 4, Features: A slot (12) is provided in the middle of the upper surface of the positioning shaft (9), and an insert block (13) is provided in the middle of the lower surface of the pressure cover (3), and the insert block (13) is inserted into the slot (12) in a matching manner.

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