Parallel double-acting type high-precision reciprocating screw rod

Abstract

The utility model discloses a parallel double-acting type high-precision reciprocating lead screw which comprises a frame, a lead screw body is arranged in an inner cavity of the frame, a threaded sleeve is installed on the front surface of the lead screw body in a threaded mode, an adjusting block is fixedly installed on the top of the threaded sleeve, and a spring is fixedly installed at the bottom of an inner cavity of the adjusting block. A transverse plate is fixedly mounted at the top of the spring, a push rod is fixedly mounted at the top of the transverse plate, an extrusion block is fixedly mounted at the top of the push rod, an oil bag is fixedly mounted at the top of the frame, and a discharging pipe is fixedly mounted on one side of the oil bag. According to the technical scheme, the reciprocating screw rod solves the problems that an existing reciprocating screw rod does not have the automatic oil injection function, friction between moving parts can be increased, the surface of the reciprocating screw rod can be gradually abraded when the reciprocating screw rod is in a high friction state for a long time, the size and the shape of the reciprocating screw rod are changed, and then the transmission precision of the reciprocating screw rod is affected.

Description

Technical Field

[0001] This utility model relates to the field of reciprocating lead screw technology, specifically a parallel double-acting high-precision reciprocating lead screw. Background Technology

[0002] A reciprocating lead screw is a type of high-precision parallel double-acting lead screw that enables a slider to reciprocate without changing the direction of the spindle rotation. It is a form of three-dimensional cam pair. A parallel double-acting high-precision reciprocating lead screw consists of two threaded grooves with the same pitch but opposite directions of rotation. The two ends of the parallel double-acting high-precision reciprocating lead screw are connected by a transition curve. The rotation of the lead screw pushes the slider placed within the helical groove to perform axial reciprocating motion. However, existing reciprocating lead screws lack automatic oil injection, increasing friction between moving parts. Under prolonged high friction, the surface of the reciprocating lead screw gradually wears down, causing changes in its size and shape, thus affecting its transmission accuracy. Utility Model Content

[0003] The purpose of this invention is to provide a parallel double-acting high-precision reciprocating screw with the advantage of automatic oil injection.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a parallel double-acting high-precision reciprocating lead screw, comprising a frame, a lead screw body disposed within the inner cavity of the frame, a threaded sleeve threaded onto the front surface of the lead screw body, an adjusting block fixedly mounted on the top of the threaded sleeve, a spring fixedly mounted on the bottom of the inner cavity of the adjusting block, a cross plate fixedly mounted on the top of the spring, a push rod fixedly mounted on the top of the cross plate, a pressing block fixedly mounted on the top of the push rod, an oil bladder fixedly mounted on the top of the frame, and a discharge pipe fixedly mounted on one side of the oil bladder.

[0005] As a preferred embodiment, a bearing is fixedly installed on the inner wall of the frame, and the right end of the lead screw body is movably installed in the inner cavity of the bearing.

[0006] As a preferred embodiment, a limiting rod is fixedly installed at the lower end of the inner wall of the frame, and the inner surface of the threaded sleeve is slidably installed on the front surface of the limiting rod.

[0007] As a preferred embodiment, a light rod is fixedly installed on both sides of the inner cavity of the adjusting block, and a slip ring is slidably installed on the front surface of the light rod. The ends of the slip rings that are close to each other are fixedly installed on both sides of the horizontal plate.

[0008] As a preferred embodiment, the lead screw body includes a cyanopolymer coating layer, and the inner surface of the cyanopolymer coating layer is coated with a polyimide coating layer.

[0009] As a preferred embodiment, the inner surface of the polyimide coating layer is coated with a polyurethane coating layer, and the inner surface of the polyurethane coating layer is coated with a Teflon coating layer.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0011] This invention solves the problem that existing reciprocating lead screws lack automatic oil spraying, leading to increased friction between moving parts. Under prolonged high friction, the surface of the reciprocating lead screw gradually wears down, causing changes in its size and shape, which in turn affects its transmission accuracy. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2 This is a second-view perspective structural perspective view of the present invention;

[0014] Figure 3 This is a cross-sectional view of the adjusting block structure of this utility model;

[0015] Figure 4 This is a cross-sectional view of the lead screw body structure of this utility model.

[0016] In the diagram: 1. Frame; 2. Lead screw body; 3. Bearing; 4. Screw sleeve; 5. Adjusting block; 6. Extrusion block; 7. Discharge pipe; 8. Oil bladder; 9. Push rod; 10. Horizontal plate; 11. Spring; 12. Slip ring; 13. Polished rod; 201. Cyano-coated coating layer; 202. Polyimide coating layer; 203. Polyurethane coating layer; 204. Teflon coating layer. Detailed Implementation

[0017] 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.

[0018] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments. Example

[0019] Please see Figures 1-3As shown, this utility model provides a parallel double-acting high-precision reciprocating lead screw, including a frame 1, a lead screw body 2 disposed in the inner cavity of the frame 1, a threaded sleeve 4 threadedly mounted on the front surface of the lead screw body 2, an adjusting block 5 fixedly mounted on the top of the threaded sleeve 4, a spring 11 fixedly mounted on the bottom of the inner cavity of the adjusting block 5, a horizontal plate 10 fixedly mounted on the top of the spring 11, a push rod 9 fixedly mounted on the top of the horizontal plate 10, a pressing block 6 fixedly mounted on the top of the push rod 9, an oil bladder 8 fixedly mounted on the top of the frame 1, and a discharge pipe 7 fixedly mounted on one side of the oil bladder 8.

[0020] This technical solution addresses the problem that existing reciprocating lead screws lack automatic oil spraying, leading to increased friction between moving parts. Prolonged exposure to high friction causes gradual wear on the reciprocating lead screw's surface, resulting in changes in its size and shape, and consequently affecting its transmission accuracy. Example

[0021] Based on Embodiment 1, this utility model is as follows: Figures 1-3 As shown, a bearing 3 is fixedly installed on the inner wall of the frame 1, the right end of the lead screw body 2 is movably installed in the inner cavity of the bearing, a limit rod is fixedly installed on the lower end of the inner wall of the frame 1, the inner surface of the screw sleeve 4 is slidably installed on the front surface of the limit rod, and smooth rods 13 are fixedly installed on both sides of the inner cavity of the adjusting block 5. Slip rings 12 are slidably installed on the front surface of the smooth rods 13, and the ends of the slip rings 12 that are close to each other are fixedly installed on both sides of the horizontal plate 10.

[0022] By adopting the above technical solution, the wear of the lead screw body 2 can be reduced and the service life of the bearing 3 can be increased by setting the bearing 3. The setting of the limiting rod can achieve the effect of limiting the screw sleeve 4. The setting of the smooth rod 13 and the slip ring 12 can guide the horizontal plate 10. Example

[0023] This utility model is as follows Figure 4 As shown, the lead screw body 2 includes a cyanopolymer coating layer 201, the inner surface of the cyanopolymer coating layer 201 is coated with a polyimide coating layer 202, the inner surface of the polyimide coating layer 202 is coated with a polyurethane coating layer 203, and the inner surface of the polyurethane coating layer 203 is coated with a Teflon coating layer 204.

[0024] The above technical solution, with the cyanide coating layer 201, has the advantages of long service life, weather resistance, aging resistance, oil resistance, waterproof and anti-corrosion performance. With the polyimide coating layer 202, it has the advantages of good mechanical properties, radiation resistance, good mechanical properties, high tensile strength, resistance to organic solvents, ozone resistance, mildew resistance and corrosion resistance.

[0025] The working principle of this utility model is as follows: When the lead screw body 2 rotates, it will drive the screw sleeve 4 to move left and right through the limit rod. Then, the screw sleeve 4 will drive the adjusting block 5 to move left and right. Then, the movement of the adjusting block 5 will drive the pressing block 6 to move left and right. Then, when the pressing block 6 contacts the bottom of the oil bladder 8, the reaction force of the spring 11 will drive the horizontal plate 10 to be adjusted through the smooth rod 13 and the slip ring 12. The adjustment of the horizontal plate 10 will drive the push rod 9 to be adjusted. Then, the push rod 9 will drive the pressing block 6 to be adjusted. Then, the pressing block 6 will squeeze the oil bladder 8. The squeezing of the oil bladder 8 will drive the internal lubricating oil to be discharged through the discharge pipe 7. With the setting of the cyanide coating layer 201, it has the advantages of long service life, weather resistance, aging resistance, oil resistance, waterproof and anti-corrosion performance. With the setting of the polyimide coating layer 202, it has the advantages of good mechanical properties, radiation resistance, good mechanical properties, high tensile strength, resistance to organic solvents, resistance to ozone, mildew resistance and corrosion resistance.

[0026] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0027] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.

[0028] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the essence and scope of the technical solutions of this utility model.

Claims

1. A parallel double-acting high-precision reciprocating lead screw, comprising a frame (1), characterized in that: The inner cavity of the frame (1) is provided with a lead screw body (2), and a screw sleeve (4) is threaded on the front surface of the lead screw body (2). An adjusting block (5) is fixedly installed on the top of the screw sleeve (4). A spring (11) is fixedly installed at the bottom of the inner cavity of the adjusting block (5). A horizontal plate (10) is fixedly installed on the top of the spring (11). A push rod (9) is fixedly installed on the top of the horizontal plate (10). An extrusion block (6) is fixedly installed on the top of the push rod (9). An oil bladder (8) is fixedly installed on the top of the frame (1). A discharge pipe (7) is fixedly installed on one side of the oil bladder (8).

2. The parallel double-acting high-precision reciprocating screw according to claim 1, characterized in that: The inner wall of the frame (1) is fixedly installed with a bearing (3), and the right end of the lead screw body (2) is movably installed in the inner cavity of the bearing.

3. The parallel double-acting high-precision reciprocating lead screw according to claim 1, characterized in that: A limiting rod is fixedly installed at the lower end of the inner wall of the frame (1), and the inner surface of the screw sleeve (4) is slidably installed on the front surface of the limiting rod.

4. The parallel double-acting high-precision reciprocating lead screw according to claim 1, characterized in that: Both sides of the inner cavity of the adjusting block (5) are fixedly installed with light rods (13), and slip rings (12) are slidably installed on the front surface of the light rods (13). The ends of the slip rings (12) that are close to each other are fixedly installed on both sides of the horizontal plate (10).

5. A parallel double-acting high-precision reciprocating lead screw according to claim 1, characterized in that: The lead screw body (2) includes a cyanopolymer coating layer (201), and the inner surface of the cyanopolymer coating layer (201) is coated with a polyimide coating layer (202).

6. A parallel double-acting high-precision reciprocating lead screw according to claim 5, characterized in that: The inner surface of the polyimide coating layer (202) is coated with a polyurethane coating layer (203), and the inner surface of the polyurethane coating layer (203) is coated with a Teflon coating layer (204).

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