Coil spring for encoder

Abstract

The utility model discloses a coil spring for an encoder, which comprises a coil spring body, one end of the coil spring body is provided with a first end, and the other end of the coil spring body is provided with a second end. And the positioning assembly is arranged in the middle of the second end head, the positioning assembly is used for fixing the position of the second end head, the positioning assembly comprises a through hole formed in the middle of the second end head, a plurality of non-return blocks are fixedly connected to the inner wall of the middle of the through hole in a central symmetry mode, and a rubber ring is connected to the interior of the through hole in a penetrating and penetrating mode. Through the design of the through hole, the non-return block, the rubber ring and the limiting assembly, when the position of the second end needs to be fixed, the position of the rubber ring is fixed through the limiting assembly, the rubber ring is sleeved with the second end through the through hole, and the second end penetrates into the rubber ring through the non-return block; and movement of the second end is limited through the non-return block and the rubber ring, so that the position of the second end is fixed.

Description

Technical Field

[0001] The utility model relates to the technical field of coil springs, in particular to a coil spring for an encoder. Background Art

[0002] The main function of the coil spring in the encoder is to provide pressure to maintain the stability of the encoder shaft, reduce mechanical clearance, and ensure the accuracy and reliability of the encoder.

[0003] In the traditional coil spring, a coil spring body is wound into a spiral shape, and end heads are respectively arranged at both ends of the coil spring body. The end heads are clamped at the required positions. During use, one of the end heads is pulled to rotate, and the coil spring body is driven to deform by the end head. When the pulling force is lost, the coil spring body begins to recover the deformation and drives the end head to reset, so as to restore the original shape. The end heads are directly formed by bending the ends of the coil spring body during production. After long-term use, when the elasticity of the coil spring body weakens, there will be a shaking situation between the end heads and other connection methods that cannot be clamped by clamping, thus affecting the use. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a coil spring for an encoder to solve the problems put forward in the above background art.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: A coil spring for an encoder, including a coil spring body, a first end head is arranged at one end of the coil spring body, a second end head is arranged at the other end of the coil spring body, and further includes;

[0006] A positioning component, the positioning component is arranged in the middle of the second end head, the positioning component is used to fix the position of the second end head, the positioning component includes a through hole opened in the middle of the second end head, a plurality of anti-reverse blocks are symmetrically fixed to the inner wall center of the middle of the through hole, a rubber ring is inserted into the through hole, and the anti-reverse blocks are inserted into the inside of the rubber ring;

[0007] A limiting component, the limiting component is arranged on one side of the second end head, and the limiting component is used to fix the position of the rubber ring.

[0008] Preferably, the horizontal longitudinal section of the anti-reverse block is triangular, and the anti-reverse block is used to fix the position of the second end head.

[0009] Preferably, the limiting component includes a positioning column inserted into the middle of the rubber ring, a second fixing block for fixing the position of the positioning column is arranged on one side of the positioning column, a first fixing block is fixedly connected to one side of the second fixing block, and a fixing piece for fixing the position of the first fixing block is arranged on one side of the first fixing block.

[0010] Preferably, the second fixing block is arranged on one side of the second end, and the first fixing block is arranged on the side of the coil spring body opposite to the second end.

[0011] Preferably, the side surface of the second fixing block is an arc surface.

[0012] Preferably, the fixing member includes an adhesive arranged on one side of the first fixing block, and a release paper for protecting the adhesive is arranged on one side of the adhesive.

[0013] Preferably, limiting blocks for restricting the shaking of the second end are symmetrically arranged at the top and bottom of the second end, and the plurality of limiting blocks are respectively fixedly connected to the top and bottom of the first fixing block and the second fixing block.

[0014] Preferably, the horizontal cross-section of the limiting block is semi-circular, and the limiting block is arranged on the other side of the adhesive.

[0015] Technical effects and advantages of the present utility model:

[0016] Through the design of the through hole, the anti-reverse block, the rubber ring and the limiting component, when it is necessary to fix the position of the second end, first fix the position of the rubber ring through the limiting component, sleuth the second end on the rubber ring through the through hole, and penetrate the anti-reverse block into the inside of the rubber ring. The movement of the second end is restricted by the anti-reverse block and the rubber ring, so as to fix the position of the second end. Description of the drawings

[0017] Figure 1 It is a three-dimensional structural schematic diagram of the present utility model.

[0018] Figure 2 It is a top view sectional structural schematic diagram of the present utility model.

[0019] Figure 3 It is the present utility model Figure 2 The enlarged structural schematic diagram of part A in.

[0020] Figure 4 It is a partial front sectional structural schematic diagram of the present utility model.

[0021] In the figure: 1. Coil spring body; 2. First end; 3. Second end; 4. Limiting component; 401. First fixing block; 402. Second fixing block; 403. Positioning column; 5. Fixing member; 501. Adhesive; 502. Release paper; 6. Limiting block; 7. Positioning component; 701. Rubber ring; 702. Anti-reverse block; 703. Through hole. Specific embodiments

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0023] The present utility model provides a coil spring for an encoder as shown in Figures 1-4 which includes a coil spring body 1, a first end head 2 is arranged at one end of the coil spring body 1, a second end head 3 is arranged at the other end of the coil spring body 1, and further includes;

[0024] a positioning component 7, the positioning component 7 is arranged in the middle of the second end head 3, and the positioning component 7 is used to fix the position of the second end head 3. The positioning component 7 includes a through hole 703 opened in the middle of the second end head 3. A plurality of anti-reverse blocks 702 are symmetrically fixed to the inner wall center of the middle part of the through hole 703. A rubber ring 701 is inserted into the inside of the through hole 703, and the anti-reverse blocks 702 are inserted into the inside of the rubber ring 701;

[0025] a limiting component 4, the limiting component 4 is arranged on one side of the second end head 3, and the limiting component 4 is used to fix the position of the rubber ring 701;

[0026] The horizontal longitudinal section of the anti-reverse block 702 is set as a triangle, and the anti-reverse block 702 is used to fix the position of the second end head 3.

[0027] It should be noted that the provided coil spring body 1, the first end head 2 and the second end head 3 form an existing coil spring for an encoder. Two coil springs are provided and are respectively arranged on both sides of the mounting rack. When in use, the first end head 2 and the second end head 3 are respectively fixed at different positions. The provided positioning component 7 can not only be used on the second end head 3; the provided anti-reverse block 702 is an obtuse triangle. When the rubber ring 701 is moved into the inside of the through hole 703, the hypotenuse of the anti-reverse block 702 contacts the outer wall of the rubber ring 701, and through the extrusion of the hypotenuse of the anti-reverse block 702, the outer wall of the rubber ring 701 deforms, so that the rubber ring 701 is not blocked by the anti-reverse block 702. When it is necessary to move the second end head 3 in the opposite direction, the acute angle of the anti-reverse block 702 will be inserted into the inside of the rubber ring 701, and the position of the second end head 3 is fixed by the blocking of the anti-reverse block 702 and the rubber ring 701 fixed in position; when it is necessary to fix the position of the second end head 3, first fix the position of the rubber ring 701 through the limiting component 4, sleuth the second end head 3 on the rubber ring 701 through the through hole 703, and insert the anti-reverse block 702 into the inside of the rubber ring 701. The movement of the second end head 3 is restricted by the anti-reverse block 702 and the rubber ring 701, so as to fix the position of the second end head 3.

[0028] Specifically, the limit component 4 includes a positioning post 403 inserted and connected in the middle of the rubber ring 701. On one side of the positioning post 403, there is a second fixing block 402 for fixing the position of the positioning post 403. On one side of the second fixing block 402, there is a first fixing block 401 fixedly connected. On one side of the first fixing block 401, there is a fixing member 5 for fixing the position of the first fixing block 401. The second fixing block 402 is arranged on one side of the second end 3, and the first fixing block 401 is arranged on the side of the spring body 1 opposite to the second end 3. The side surface of the second fixing block 402 is set as an arc surface.

[0029] It should be noted that the arc surface on one side of the arranged second fixing block 402 is adapted to the arc surface of the arranged second end 3. During use, it is used to sleeved the second end 3 on one side of the second fixing block 402, and both the first fixing block 401 and the second fixing block 402 are arranged between the spring body 1 and the second end 3, and the movement of the second end 3 is restricted by the blocking of the first fixing block 401 and the second fixing block 402; the arranged positioning post 403 is cylindrical and is inserted and fixedly connected in the middle of the rubber ring 701, and the position of the rubber ring 701 is fixed by the positioning post 403.

[0030] Specifically, the fixing member 5 includes an adhesive 501 arranged on one side of the first fixing block 401, and on one side of the adhesive 501, there is a release paper 502 for protecting the adhesive 501.

[0031] It should be noted that the arranged adhesive 501 is epoxy resin. After the epoxy resin is cured, it forms a hard solid with high mechanical strength and is suitable for bonding requirements with high strength. The arranged release paper 502 plays the role of preventing adhesion and protecting the substrate through its special coating and material. The coating can be a silicide. Silicon has the characteristic of low surface energy, which can effectively prevent the adhesion of adhesive substances to the paper. This coating forms a smooth surface, so that the adhesive substances will not adhere firmly to the paper; when the position of the first fixing block 401 needs to be fixed, first tear off the release paper 502 from one side of the adhesive 501, and then bond the adhesive 501 at the required position, and the position of the first fixing block 401 is fixed by the adhesive 501.

[0032] Specifically, limit blocks 6 for restricting the shaking of the second end 3 are symmetrically arranged at the top and bottom of the second end 3. A plurality of limit blocks 6 are respectively fixedly connected to the top and bottom of the first fixing block 401 and the second fixing block 402. The horizontal cross-section of the limit block 6 is set as a semi-circle, and the limit block 6 is arranged on the other side of the adhesive 501.

[0033] It should be noted that when the set limiting block 6 and the first fixing block 401 and the second fixing block 402 are manufactured, they can be manufactured by injection molding at the same time. The distance between the set limiting blocks 6 is adapted to the height of the second end 3, so that the second end 3 can penetrate between the two limiting blocks 6. Through the blocking of the two limiting blocks 6, the second end 3 is prevented from moving to one side of the limiting block 6, and the position of the second end 3 is further restricted by the limiting block 6.

[0034] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A coil spring for an encoder, comprising a coil spring body (1), one end of the coil spring body (1) being provided with a first terminal (2), and the other end of the coil spring body (1) being provided with a second terminal (3), characterized in that: Also includes; A positioning component (7), the positioning component (7) being arranged in the middle of the second end head (3), the positioning component (7) being used to fix the position of the second end head (3), the positioning component (7) comprising a through hole (703) opened in the middle of the second end head (3), a plurality of check blocks (702) being fixedly connected symmetrically to the inner wall of the middle of the through hole (703), a rubber ring (701) being inserted and connected inside the through hole (703), and the check blocks (702) being inserted and connected inside the rubber ring (701); A limiting component (4), wherein the limiting component (4) is arranged on one side of the second end head (3), and the limiting component (4) is used to fix the position of the rubber ring (701).

2. The coil spring for encoder according to claim 1, characterized in that: The horizontal longitudinal cross-section of the check block (702) is arranged to be a triangle, and the check block (702) is used to fix the position of the second end head (3).

3. The coil spring for encoder according to claim 1, characterized in that: The limiting assembly (4) comprises a positioning column (403) inserted and connected to the middle part of the rubber ring (701); a second fixing block (402) for fixing the position of the positioning column (403) is arranged on one side of the positioning column (403); a first fixing block (401) is fixedly connected to one side of the second fixing block (402); and a fixing member (5) for fixing the position of the first fixing block (401) is arranged on one side of the first fixing block (401).

4. The coil spring for encoder according to claim 3, characterized in that: The second fixing block (402) is arranged on one side of the second end (3), and the first fixing block (401) is arranged on a side of the coil spring body (1) opposite to the second end (3).

5. The coil spring for encoder according to claim 4, characterized in that: The side surface of the second fixing block (402) is configured as an arc-shaped surface.

6. The coil spring for encoder according to claim 4, characterized in that: The fixing member (5) comprises an adhesive glue (501) arranged on one side of the first fixing block (401), and a release paper (502) for protecting the adhesive glue (501) is arranged on one side of the adhesive glue (501).

7. The coil spring for encoder according to claim 1, characterized in that: Limiting blocks (6) for limiting the shaking of the second end head (3) are symmetrically arranged at the top and bottom of the second end head (3); a plurality of the limiting blocks (6) are respectively fixedly connected to the top and bottom ends of the first fixing block (401) and the second fixing block (402).

8. The coil spring for encoder according to claim 7, characterized in that: The horizontal transverse cross-section of the limiting block (6) is arranged to be semicircular, and the limiting block (6) is arranged on the other side of the adhesive (501).

Images