A high-precision grinding machine lateral measurement swing cylinder

Abstract

This application relates to the field of hydraulic cylinder technology, specifically to a high-precision grinding machine lateral measurement swing cylinder. It includes a rotating shaft, a lifting valve, a limiting rod, and several rollers. The rotating shaft has several helical grooves. The lifting valve has a shaft hole, a limiting groove, and several roller holes on or inside it. The roller holes are distributed around the axis of the shaft hole and communicate with it. The limiting groove extends in a direction parallel to the axis of the shaft hole. The lifting valve is located within a piston chamber. The rotating shaft is located within the shaft hole and its upper end extends out of a top cover. The rollers are located within the roller holes and are movably fitted to the helical grooves. The limiting rod is fixed to the cylinder body and its end is movably fitted to the limiting groove. The high-precision grinding machine lateral measurement swing cylinder disclosed in this application has the technical characteristics of simple structure, high transmission efficiency, and small size.

Description

Technical Field

[0001] This application relates to the field of hydraulic cylinder technology, specifically to a high-precision grinding machine lateral measurement swing cylinder. Background Technology

[0002] The helical oscillating cylinder achieves the rotation of the output shaft, i.e., the spline shaft, through the relative motion between two sets of helical pairs: the helix inside the housing and the helix outside the spline sleeve, and the helix inside the spline sleeve and the helix outside the spline shaft. The spline sleeve is hydraulically driven; when it rotates and moves linearly under the drive of hydraulic oil, it causes the spline shaft, i.e., the output shaft, to output rotational motion through the spline pair formed by the helix inside the spline sleeve and the helix outside the spline shaft. Existing helical oscillating cylinders have the following problems: 1. The two sets of helical pairs are difficult to manufacture, costly, and bulky; 2. Through the transmission of the two sets of helical pairs, the spline sleeve continues to rotate while making linear motion, resulting in high power consumption, low transmission efficiency, and significant wear. Utility Model Content

[0003] In view of this, this application provides a high-precision grinding machine lateral measurement swing cylinder to solve all or part of the technical problems described in the background section of this application.

[0004] The innovative idea of ​​this application is to set a spiral groove on the output shaft (called the rotating shaft in this application) and set a roller between the drive sleeve (called the lifting valve in this application) and the rotating shaft; the rotation drive of the output shaft is completed by the spiral groove cooperating with the roller (ball or roller).

[0005] The solution provided in this application to resolve its technical problem is as follows: A high-precision grinding machine lateral measurement swing cylinder includes a cylinder body, a top cover, and a bottom cover; the cylinder body has a piston chamber, a top cover groove, and a bottom cover groove; the top cover and bottom cover are respectively disposed in the top cover groove and the bottom cover groove; characterized in that it further includes a rotating shaft, a lifting valve, a limiting rod, and several rollers; the rotating shaft has several helical grooves; the lifting valve has a shaft hole, a limiting groove, and several roller holes on or inside; the several roller holes are distributed around the axis of the shaft hole and connected to the shaft hole; the limiting groove extends in a direction parallel to the axis of the shaft hole; the lifting valve is disposed in the piston chamber; the rotating shaft is disposed in the shaft hole; the rollers are disposed in the roller holes and movably fitted to the helical grooves; the limiting rod is fixed on the cylinder body and its end is movably fitted to the limiting groove.

[0006] Drive Description: When hydraulic oil is connected, the lifting valve can only move in a straight line under the action of the limiting rod; when the lifting valve moves in a straight line, it drives the rotating shaft to rotate through the transmission pair composed of rollers and spiral grooves.

[0007] Preferably, the high-precision grinding machine lateral measurement swing cylinder further includes an upper bearing; the top cover includes a top cover body and a top cover embedding part; an upper bearing position is provided in the top cover embedding part; the upper bearing is located in the upper bearing position.

[0008] Preferably, the high-precision grinding machine lateral measurement swing cylinder further includes a lower bearing; the bottom cover includes a bottom cover body and a bottom cover insert; the lower bearing is disposed in the bottom cover insert; the lower bearing is disposed in the lower bearing position.

[0009] Preferably, the cylinder body is also provided with a limiting rod hole; the limiting rod is fixedly assembled in the limiting rod hole.

[0010] Preferably, the cylinder body is also provided with an assembly; the rotating ring is disposed on the top cover and fixedly connected to the rotating shaft.

[0011] Preferably, the high-precision grinding machine lateral measurement swing cylinder also includes a rotating ring; the rotating ring is disposed on the top cover and fixedly connected to the rotating shaft.

[0012] Preferably, the cylinder body is also provided with an upper oil port and a lower oil port; both the upper oil port and the lower oil port are connected to the piston chamber.

[0013] Preferably, the roller is a roller or a cylindrical roller.

[0014] Beneficial technical effects: The high-precision grinding machine lateral measurement swing cylinder disclosed in this application reduces the existing transmission structure consisting of two sets of helical pairs to one set of transmission pairs consisting of rollers and helical grooves by setting helical grooves on the rotating shaft and setting rollers between the rotating shaft and the lifting valve. It has the technical characteristics of simple structure, high transmission efficiency and small size.

[0015] The technical solution and technical effects of this application will be described in detail below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0016] Figure 1 : 3D structural diagram of the swing cylinder for lateral measurement of a high-precision grinding machine; Figure 2 Exploded view of the lateral measurement swing cylinder component of a high-precision grinding machine; Figure 3 Diagram showing the connection relationship of the swing cylinder for lateral measurement on a high-precision grinding machine; Icon description: 1-Cylinder body; 11-Piston chamber; 12-Top cover groove; 13-Bottom cover groove; 14-Limiting rod hole; 15-Assembly hole; 16-Upper oil port; 17-Lower oil port; 2-Top cover; 21-Top cover body; 22-Top cover insert; 23-Upper bearing position; 3-Bottom cover; 31-Bottom cover body; 32-Bottom cover insert; 33-Lower bearing seat; 4-Rotating shaft; 41-Helical groove; 5-Lift valve; 51-Spindle hole; 52-Limiting groove; 53-Roller hole; 6-Limiting rod; 7-Upper bearing; 8-Lower bearing; 9-Rotation. Detailed Implementation

[0017] Direction convention: In this application, the direction of the protruding end of the swivel or rotating shaft is defined as the top or upper part, and the opposite direction is defined as the bottom or lower part.

[0018] Please see Figures 1 to 3 The high-precision grinding machine lateral measurement swing cylinder disclosed in this application includes a cylinder body 1, a top cover 2, and a bottom cover 3; the cylinder body 1 is provided with a piston chamber 11, a top cover groove 12, and a bottom cover groove 13; the top cover 2 includes a top cover body 21 and a top cover insert 22; the bottom cover 3 includes a bottom cover body 31 and a bottom cover insert 32; the top cover body 21 and the bottom cover body 31 are respectively disposed in the top cover groove 12 and the bottom cover groove 13; the top cover insert 22 and the bottom cover insert 32 extend into the piston chamber 11.

[0019] An upper bearing seat 23 is provided inside the top cover embedding part 22; an upper bearing 7 is provided inside the upper bearing seat 23. A lower bearing seat 33 is provided inside the bottom cover embedding part 32; a lower bearing 8 is provided inside the lower bearing seat 33.

[0020] The high-precision grinding machine lateral measurement swing cylinder also includes a rotating shaft 4, a lifting valve 5, a limiting rod 6, and several rollers.

[0021] The roller can be a ball or a roller.

[0022] The rotating shaft 4 is disposed within the piston chamber 11, the upper bearing 7, and the lower bearing 8. The top of the rotating shaft 4 extends out of the piston chamber 11 and is fixedly connected to a rotating ring 9. Several spiral grooves 41 are provided on the rotating shaft 4.

[0023] The lifting valve 5 has a rotating shaft hole 51 inside, and a limiting groove 52 and several roller holes 53 are provided on the outer surface of the lifting valve 5. The several roller holes 53 are distributed around the axis of the rotating shaft hole 51 and connected to the rotating shaft hole 51. The limiting groove 52 extends in a direction parallel to the axis of the rotating shaft hole 51.

[0024] The lifting valve 5 is located inside the piston chamber 11; the rotating shaft 4 passes through the rotating shaft hole 51; the roller is located inside the roller hole 53 and is movably fitted to the spiral groove 41; the limiting rod 6 is fixed inside the limiting rod hole 14 on the cylinder body 1 and its end is movably fitted to the limiting groove 52.

[0025] The cylinder body 1 is also provided with a mounting hole 15, an upper oil port 16, and a lower oil port 17; both the upper oil port 16 and the lower oil port 17 are connected to the piston chamber 11. The mounting hole 15 is used to cooperate with fasteners such as screws to complete the fixed installation of the high-precision grinding machine lateral measuring swing cylinder. The upper oil port 16 and the lower oil port 17 are used to provide hydraulic oil delivery channels.

[0026] Principle explanation: Hydraulic oil is supplied from the upper oil port 16 or the lower oil port 17. The lifting valve 5 moves up or down under the action of hydraulic pressure, which in turn drives the rotating shaft 4 to rotate through the action of the roller on the spiral groove 41. At the same time, with the cooperation of the limiting rod 6 and the limiting groove 52, the lifting valve 5 can only move in a straight line.

[0027] Therefore, by setting a spiral groove 41 on the rotating shaft 4 and setting a roller between the rotating shaft 4 and the lifting valve 5, this application reduces the existing transmission structure consisting of two sets of spiral pairs to a single transmission pair consisting of rollers and spiral grooves, which has technical advantages such as simple structure, high transmission efficiency and small size.

[0028] The technical solutions and effects of this application have been described in detail above with reference to the accompanying drawings and specific embodiments. It should be noted that those skilled in the art can develop other embodiments based on this. Any simple modifications and equivalent substitutions that do not depart from the innovative concept of this application are covered by this application and fall within the protection scope of this patent.

Claims

1. A high-precision grinding machine lateral measurement swing cylinder, comprising a cylinder body (1), a top cover (2), and a bottom cover (3); wherein the cylinder body (1) is provided with a piston chamber (11), a top cover groove (12), and a bottom cover groove (13); the top cover (2) and the bottom cover (3) are respectively disposed in the top cover groove (12) and the bottom cover groove (13); characterized in that: It also includes a rotating shaft (4), a lifting valve (5), a limiting rod (6), and several rollers; The rotating shaft (4) is provided with several spiral grooves (41). The lifting valve (5) is provided with a shaft hole (51), a limiting groove (52) and several roller holes (53) on or inside. A plurality of the roller holes (53) are distributed around the axis of the pivot hole (51) and connected to the pivot hole (51); the defining groove (52) extends in a direction parallel to the axis of the pivot hole (51); The lifting valve (5) is disposed inside the piston chamber (11); The rotating shaft (4) is disposed within the rotating shaft hole (51); The roller is disposed in the roller hole (53) and is movably fitted to the spiral groove (41); The limiting rod (6) is fixed on the cylinder body (1) and its end is movably fitted into the limiting groove (52).

2. The high-precision grinding machine lateral measurement swing cylinder according to claim 1, characterized in that: The high-precision grinding machine lateral measurement swing cylinder also includes an upper bearing (7). The top cover (2) includes a top cover body (21) and a top cover insert (22). An upper bearing seat (23) is provided inside the top cover embedding part (22). The upper bearing (7) is located within the upper bearing position (23).

3. The high-precision grinding machine lateral measurement swing cylinder according to claim 1, characterized in that: The high-precision grinding machine lateral measurement swing cylinder also includes a lower bearing (8). The bottom cover (3) includes a bottom cover body (31) and a bottom cover insert (32). The bottom cover embedment (32) is provided with a lower bearing position (33). The lower bearing (8) is located within the lower bearing position (33).

4. The high-precision grinding machine lateral measurement swing cylinder according to claim 1, characterized in that: The cylinder body (1) is also provided with a limiting rod hole (14); The limiting rod (6) is fixedly assembled in the limiting rod hole (14).

5. The high-precision grinding machine lateral measurement swing cylinder according to claim 1, characterized in that: The cylinder body (1) is also provided with an assembly hole (15); The mounting hole (15) is used to cooperate with fasteners to complete the fixed installation of the high-precision grinding machine lateral measurement swing cylinder.

6. The high-precision grinding machine lateral measurement swing cylinder according to claim 1, characterized in that: The high-precision grinding machine lateral measurement swing cylinder also includes a rotating ring (9); The rotating ring (9) is disposed on the top cover (2) and fixedly connected to the rotating shaft (4).

7. The high-precision grinding machine lateral measurement swing cylinder according to claim 1, characterized in that: The cylinder body (1) is also provided with an upper oil port (16) and a lower oil port (17). The upper oil port (16) and the lower oil port (17) are both connected to the piston chamber (11).

8. The high-precision grinding machine lateral measurement swing cylinder according to claim 1, characterized in that: The roller is a roller or a cylindrical roller.

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