Snap spring main shaft positioning clamp

Abstract

The utility model discloses a clamp spring main shaft positioning clamp which comprises a clamp spring (1), a limiting block (2), an L-shaped thin hook (5) and a hook groove (6). A hook groove (6) is formed in the clamping spring (1), an L-shaped thin hook (5) is arranged on the limiting block (2), and the L-shaped thin hook (5) is clamped into the hook groove (6) formed in the clamping spring (1). The clamp spring clamping and positioning device can restrict the clamp spring to move along with the main shaft, the clamp spring clamping and positioning position does not change, repeated positioning errors are reduced, batch machining is achieved, the size precision is consistent, the frequency of repeated tool setting and sampling inspection of an operator is reduced, machining efficiency is high, cost is low, and the structure is simple.

Description

Technical Field

[0001] The utility model belongs to the technical field of clamps, and in particular relates to a retaining spring spindle positioning clamp. Background Art

[0002] For a long time, the retaining springs used in CNC lathe processing will rotate with the spindle to clamp the parts during processing. After one clamping process is completed, the spindle will slowly rotate to a stop due to inertia. At this time, the retaining spring will also swing and rotate with the spindle. When processing the next product, the position of the retaining spring will change due to the shaking, causing the positioning reference of the next product to change when processing the next product compared with the previous product. As a result, positioning errors will be generated in each clamping when the product is continuously processed, resulting in poor dimensional consistency of the product after processing. Even when the continuous processing quantity is large, the size and accuracy will exceed the tolerance. As a result, the operator needs to frequently sample and measure the product and continuously adjust the fixture during the processing process, increasing the waste of production manpower and time. Summary of the Invention

[0003] The purpose of the utility model is to overcome the above-mentioned shortcomings and provide a retaining spring spindle positioning fixture which restricts the movement of the retaining spring with the main shaft, does not change the retaining spring clamping and positioning position, reduces repeated positioning errors, batches of processing, consistent dimensional accuracy, reduces the operator's frequency of repeated tool setting and spot checks, has high processing efficiency, low cost and simple structure.

[0004] The utility model discloses a circlip spindle positioning fixture, comprising a circlip, a limiting block, an L-shaped thin hook and a hook groove, and is characterized in that the hook groove is provided on the circlip, the limiting block is provided with the L-shaped thin hook, and the L-shaped thin hook is clamped in the hook groove provided on the circlip.

[0005] A limit block is placed on the circlip sleeve and a locking screw is screwed in.

[0006] The circlip sleeve is sleeved on the outside of the inserted circlip.

[0007] Compared with the prior art, the present invention has significant advantages. As can be seen from the above technical solution, a thin L-shaped hook is provided on the limit block through a hook groove provided on the retaining spring, and the L-shaped hook is engaged with the hook groove provided on the retaining spring. The limit block is the main component of the clamp that realizes its function. The limit block is machined with a thin L-shaped hook that precisely matches the retaining spring and a positioning hole that is interconnected with the retaining spring sleeve. The retaining spring is machined with a hook groove that cooperates with the thin L-shaped hook on the limit block, preventing the retaining spring from rotating with the spindle. The retaining spring sleeve is machined with a threaded hole for securing the limit block. During use, after the limit block is fixed to the retaining spring, the retaining spring sleeve and the limit block are integrally mounted on the retaining spring, ensuring a tight fit between the limit block and the hook groove on the retaining spring. The clamp is then mounted on the lathe spindle. After a single clamping operation is completed, the retaining spring slowly rotates with the spindle due to inertia. However, due to the action of the limit block, the retaining spring does not move back and forth and remains in place until the next clamping operation is completed, ensuring good positioning accuracy. The spindle positioning fixture of the circlip can reduce the occurrence of repeated positioning errors, improve the dimensional accuracy consistency of batch processed products, reduce the frequency of repeated tool setting and random inspections by operators, improve processing efficiency and save a lot of manpower and time costs, and realize the restriction of the movement of the circlip with the spindle, the clamping and positioning position of the circlip does not change, reduce repeated positioning errors, batch processing, consistent dimensional accuracy, reduce the frequency of repeated tool setting and random inspections by operators, high processing efficiency, low cost and simple structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 It is a structural diagram of the utility model;

[0009] Figure 2 It is a top view of the utility model;

[0010] Figure 3 yes Figure 2 AA cross-sectional view;

[0011] Figure 4 This is the main view of the retaining spring of the utility model;

[0012] Figure 5 It is a top view of the retaining spring of the utility model;

[0013] Figure 6 This is the main view of the limit block of the utility model;

[0014] Figure 7 It is a top view of the limit block of the utility model;

[0015] Figure 8 This is a top view of the circlip sleeve of the utility model;

[0016] Figure 9 yes Figure 8 Cross-sectional view of BB.

[0017] Marking in the figure

[0018] 1. Circlip; 2. Limit block; 3. Locking screw; 4. Circlip sleeve; 5. L-shaped thin hook; 6. Hook groove. DETAILED DESCRIPTION

[0019] The following is a detailed description of the specific implementation, structure, features and effects of the present invention in conjunction with the accompanying drawings and preferred embodiments.

[0020] The purpose of the utility model and the solution of its main technical problems are achieved by adopting the following technical solutions:

[0021] The utility model provides a retaining spring spindle positioning fixture, comprising a retaining spring 1, a limit block 2, a locking screw 3, a retaining spring sleeve 4, an L-shaped thin hook 5, and a hook groove 6, and is characterized in that: the hook groove 6 is provided on the retaining spring 1, the limit block 2 is provided on the L-shaped thin hook 5, the L-shaped thin hook 5 is inserted into the hook groove 6 provided on the retaining spring 1, the limit block 2 is placed on the retaining spring sleeve 4, and the locking screw 3 is screwed in, and the retaining spring sleeve 4 is sleeved on the outside of the inserted retaining spring 1.

[0022] When used; see Figure 2 After fixing the limit block 2 on the circlip 1, put the circlip sleeve 4 and the limit block 2 on the circlip 1 as a whole, so that the L-shaped thin hook 5 on the limit block 2 is clamped into the hook groove 6 on the circlip 1 to maintain a tight fit, and then install it on the lathe spindle. After one clamping process is completed, the circlip 1 slowly rotates with the spindle under the action of inertia, and the L-shaped thin hook 5 is clamped into the hook groove 6. Under the action of the L-shaped thin hook 5 of the limit block 2, the circlip 1 will not move back and forth, and will continue to maintain it until the next clamping process until the batch processing is completed, which can ensure good positioning accuracy.

[0023] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Any simple modification, equivalent change and modification of the above embodiment made according to the technical essence of the present invention without departing from the content of the technical solution of the present invention shall still fall within the scope of the technical solution of the present invention.

Claims

1. A retaining spring spindle positioning fixture, comprising a retaining spring (1), a limit block (2), an L-shaped thin hook (5), and a hook groove (6), characterized in that; A hook groove (6) is provided on the circlip (1), and an L-shaped thin hook (5) is provided on the limit block (2). The L-shaped thin hook (5) is inserted into the hook groove (6) provided on the circlip (1). The limit block (2) is placed on the circlip sleeve (4) and the locking screw (3) is screwed in.

2. A circlip spindle positioning fixture as claimed in claim 1, characterized in that; The circlip sleeve (4) is sleeved on the outside of the inserted circlip (1).

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