A horizontal and vertical dual-purpose ultra-thin hollow rotary oil cylinder

Abstract

The utility model relates to the technical field of hydraulic transmission, specifically relates to a horizontal and vertical dual-purpose formula ultrathin hollow rotary oil cylinder, including cylinder body, casing, the casing outside is equipped with the push -in mouth, pull -out mouth, oil return, the casing upper surface outside is provided with the fastening mouth, the casing upper surface is equipped with the installation mouth, the casing middle part is provided with the hollow main shaft, hollow main shaft one end outer wall is equipped with the outer thread, hollow main shaft one end inner wall is equipped with the internal thread, the cylinder body outside is fixedly connected with valve shaft through the fixed peg, the cylinder body upside is equipped with the front lock mouth, rear lock mouth, the cylinder body upside is fixedly provided with the stop mouth, the hollow main shaft sets up in the cylinder body middle part, is connected through the bearing cooperation between the hollow main shaft and cylinder body. The utility model, adapts two kinds of installation postures, satisfies different equipment layout demand, the direction of oil return is not restricted, and the oil return distance is also longer than traditional device, and the overall length is also more short.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic transmission equipment technology, specifically to a horizontal and vertical dual-purpose ultra-thin hollow rotary cylinder. Background Technology

[0002] Hollow rotary cylinders, as hydraulic actuators that integrate hollow structure and rotary function, are widely used in CNC machine tools, automated production lines, precision machining equipment and other fields. Their core function is to realize the rotational positioning, clamping or linear reciprocating motion of workpieces through hydraulic drive. At the same time, the hollow channel can meet the needs of workpiece insertion and pipeline layout, which is of great significance in improving equipment integration and work efficiency.

[0003] Traditional hollow rotary cylinders are mostly designed with a fixed angle, which can only adapt to a single horizontal or vertical installation posture. At the same time, the oil return port of traditional hollow rotary cylinders must be vertically downward and the volume is relatively large.

[0004] Therefore, a horizontal and vertical dual-purpose ultra-thin hollow rotary cylinder is proposed to solve the problems mentioned above. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a dual-purpose (horizontal and vertical) ultra-thin hollow rotary cylinder, which can solve the problems of traditional hollow rotary cylinders, which are mostly designed with a fixed angle and can only adapt to a single horizontal or vertical installation posture. At the same time, traditional hollow rotary cylinders have oil return ports that must be vertically downward and have a large volume.

[0006] To achieve the above objectives, this utility model provides the following technical solution: it includes a cylinder body and a housing, the outer side of the housing is provided with a push inlet, a pull outlet, and an oil return port, the outer side of the upper surface of the housing is provided with a fastening port, the upper surface of the housing is provided with an installation port, a cavity is provided through the middle of the housing, a hollow main shaft is provided in the middle of the housing, one end of the hollow main shaft is provided with an external thread on its outer wall, and one end of the hollow main shaft is provided with an internal thread on its inner wall;

[0007] A valve shaft is fixedly connected to the outside of the cylinder body by a fixing bolt. A front locking port and a rear locking port are opened on the upper side of the cylinder body. A stop is fixedly provided on the upper side of the cylinder body. The hollow main shaft is located in the middle of the cylinder body. The hollow main shaft and the cylinder body are connected by bearings.

[0008] Preferably, the push-in port and the pull-out port are spaced apart on the housing, and the pull-out port is located on the side closer to the cylinder body. Another push-in port and the pull-out port are symmetrically arranged on the outside of the housing.

[0009] Preferably, the fastening port and the mounting port are evenly distributed alternately on the circumferential sidewall of the cylinder body. The fastening port is used to insert a fastening connector, and the mounting port is used for positioning and connection with an external assembly structure.

[0010] Preferably, the bearing is sleeved outside the hollow main shaft, with one side of the bearing abutting against the inner wall of the cylinder and the other side corresponding to the valve shaft, thereby realizing the rotational support of the hollow main shaft relative to the cylinder.

[0011] Preferably, the front locking port and the rear locking port are evenly distributed alternately around the end face of the cylinder body, and the central angle distance between adjacent front locking ports and the rear locking port is equal.

[0012] Preferably, the oil return port is distributed parallel to the valve shaft axis, and the oil return port is adapted to be connected to the oil passage of the cylinder through the internal channel of the housing.

[0013] Preferably, the stop is a boss structure, and the stop and the internal thread are distributed sequentially along the axial direction of the cylinder body.

[0014] Compared with the prior art, this utility model provides a horizontal and vertical dual-purpose ultra-thin hollow rotary cylinder, which has the following beneficial effects:

[0015] 1. This horizontal and vertical dual-purpose ultra-thin hollow rotary cylinder can be adapted to two installation postures through front locking and rear locking to meet the layout requirements of different equipment.

[0016] 2. This horizontal and vertical dual-purpose ultra-thin hollow rotary cylinder allows the direction of oil return to be unrestricted through the check valve and pressure relief valve inside the housing.

[0017] 3. This horizontal and vertical dual-purpose ultra-thin hollow rotary cylinder has a more compact size and can be installed close to the equipment, saving space. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the overall side view structure of this utility model;

[0020] Figure 3 This is a top view of the overall structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the vertical structure of this utility model.

[0022] In the diagram: 1. Cylinder body; 2. Valve shaft; 3. Push inlet; 4. Pull outlet; 5. Oil return port; 6. External thread; 7. Hollow spindle; 8. Bearing; 9. Internal thread; 10. Stop; 11. Fastening port; 12. Mounting port; 13. Front locking port; 14. Rear locking port; 15. Housing. Detailed Implementation

[0023] 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.

[0024] Example:

[0025] Please see Figure 1 - Figure 4 This embodiment of a horizontal and vertical dual-purpose ultra-thin hollow rotary cylinder includes a cylinder body 1 and a housing 15. The outer side of the housing 15 is provided with a push inlet 3, a pull outlet 4, and an oil return outlet 5. The outer side of the upper surface of the housing 15 is provided with a fastening port 11. The upper surface of the housing 15 is provided with an installation port 12. A cavity is provided through the middle of the housing 15. A hollow main shaft 7 is provided in the middle of the housing 15. One end of the hollow main shaft 7 is provided with an external thread 6 on its outer wall and one end of the hollow main shaft 7 is provided with an internal thread 9 on its inner wall.

[0026] A valve shaft 2 is fixedly connected to the outside of the cylinder body 1 by a fixing bolt. A front locking port 13 and a rear locking port 14 are opened on the upper side of the cylinder body 1. A stop port 10 is fixedly installed on the upper side of the cylinder body 1. A hollow main shaft 7 is located in the middle of the cylinder body 1. The hollow main shaft 7 and the cylinder body 1 are connected by a bearing 8.

[0027] The distance between the two mounting ports 12 is 110mm. The internal M6 threaded hole is 11mm deep and used for installation with an external water collection box. The external thread 6 is M58 with a pitch of 1.5mm, and the internal thread 9 is M60 with a pitch of 2mm. The diameter of the stop 10 is 130mm, the tolerance grade of the male stop is f7, and the length of the stop 10 is 5 units. The distance between the rear locking ports 14 is 165mm, and the rear locking ports 14 are through ports with a diameter of 9mm. The front locking port 13... The distance between them is 170mm, the front lock port 13 is M10 with a hole depth of 23mm, the cylinder body 1 has a diameter and length of 185mm, the total length of the device is 206mm, the piston stroke is 20mm, the distance from the bottom surface of the cylinder body 1 to the upper surface of the housing 15 is 162.5mm, the radial length of the hollow main shaft 7 is 35mm, the push-out port 3 and pull-out port 4 are PT3 / 8, the oil return port 5 is PT1 / 2 with a lower internal thread, and the housing 15 is equipped with a check valve and a pressure relief valve.

[0028] The operator uses the front locking port 13 and the rear locking port 14 to cooperate with the external screw, which can be applied to horizontal and vertical spindles, making space application more flexible. Then, high-pressure hydraulic oil is introduced through the push port 3, which pushes the piston inside the cylinder 1 to move, driving the hollow spindle 7 to rotate or move axially. The pull port 4 is used to control the pressure and flow of hydraulic oil and adjust the spindle speed. The return port 5 is responsible for returning low-pressure hydraulic oil to the oil tank. The internal thread 9 of the hollow spindle 7 can pass through the workpiece or the pull rod, and the external thread 6 connects to the external actuator to realize the clamping and rotation of the workpiece. At the same time, the rotation of the housing 15 is realized through the bearing 8. The check valve and pressure relief valve inside the housing 15 make the direction of oil return unrestricted, and the oil return distance is also longer than that of traditional devices. The overall length is also more compact. The front locking port 13 and the rear locking port 14 can lock the spindle position when needed to ensure machining accuracy.

[0029] The push-in port 3 and pull-out port 4 are spaced apart on the housing 15, and the pull-out port 4 is located on the side closer to the cylinder 1. Another push-in port 3 and pull-out port 4 are symmetrically arranged on the outside of the housing 15.

[0030] Fastening ports 11 and mounting ports 12 are evenly distributed alternately on the circumferential sidewall of the cylinder body 1. Fastening ports 11 are used to pass through fastening connectors, and mounting ports 12 are used for positioning and connection with external assembly structures.

[0031] The bearing 8 is sleeved outside the hollow main shaft 7, and one side of the bearing 8 abuts against the inner wall of the cylinder body 1, while the other side is correspondingly engaged with the valve shaft 2, so as to realize the rotational support of the hollow main shaft 7 relative to the cylinder body 1.

[0032] The front locking port 13 and the rear locking port 14 are evenly distributed alternately on the end face of the cylinder body 1 in the circumferential direction, and the central angle distance between adjacent front locking ports 13 and rear locking ports 14 is equal.

[0033] The oil return port 5 is axially parallel to the valve shaft 2, and the oil return port 5 is connected to the oil passage of the cylinder 1 through the internal channel of the housing 15.

[0034] The stop 10 is a boss structure, and the stop 10 and the internal thread 9 are distributed sequentially along the axial direction of the cylinder body 1.

[0035] During vertical installation, the operator uses the front locking port 13 and rear locking port 14 at the end of the cylinder body 1, in conjunction with the locking structure of the vertical tooling, to distribute gravity and axial force through the alternating distribution of the locking ports. Simultaneously, the axial layout of the oil return port 5, push inlet 3, and other holes prevents interference between the oil circuit interface and the table surface due to vertical installation, ensuring smooth oil circuit connection. During horizontal installation, the front locking port 13 and rear locking port 14 circumferentially connect the cylinder body 1 to the mounting surface of the horizontal equipment for quick positioning and fastening. The hollow structure of the hollow spindle 7 allows for the installation of a horizontal tie rod, accommodating the clamping control of the horizontal chuck. The support of the bearing 8 ensures stability during horizontal rotation. After installation, hydraulic oil enters the cylinder through the push-in port 3 on the housing 15, and is guided by the valve shaft 2 and the internal oil circuit of the cylinder body 1, pushing the hollow spindle 7 to rotate relative to the cylinder body 1. This drives the chuck, clamp and other actuators connected to it to clamp the workpiece. The pull-out port 4 is used to connect pressure sensors, throttle valves and other components to achieve precise control of the inlet pressure and flow rate. After clamping, the hydraulic oil flows back to the oil tank through the return port 5 to achieve oil circuit circulation. This device is adaptable to two installation postures to meet the layout requirements of different equipment. By compressing the radial dimension, it can be installed close to the equipment to save space. The support of the bearing 8 ensures the rotation accuracy and stability of the hollow spindle 7.

[0036] The installation, connection, or setting methods disclosed in this embodiment are all common mechanical connection methods. As long as they can achieve their beneficial effects, they can be implemented. Therefore, this embodiment will not elaborate on their specific structural composition and working principle.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A horizontal and vertical dual-purpose ultra-thin hollow rotary cylinder, characterized in that: The housing includes a cylinder body (1) and a shell (15). The outer side of the shell (15) is provided with a push-in port (3), a pull-out port (4), and an oil return port (5). The outer side of the upper surface of the shell (15) is provided with a fastening port (11). The upper surface of the shell (15) is provided with an installation port (12). A cavity is provided through the middle of the shell (15). A hollow spindle (7) is provided in the middle of the shell (15). One end of the hollow spindle (7) is provided with an external thread (6) on its outer wall, and one end of the hollow spindle (7) is provided with an internal thread (9) on its inner wall. A valve shaft (2) is fixedly connected to the outside of the cylinder body (1) by a fixing bolt. A front locking port (13) and a rear locking port (14) are opened on the upper side of the cylinder body (1). A stop (10) is fixedly provided on the upper side of the cylinder body (1). The hollow main shaft (7) is located in the middle of the cylinder body (1). The hollow main shaft (7) and the cylinder body (1) are connected by bearings (8).

2. The ultra-thin hollow rotary hydraulic cylinder for both horizontal and vertical use according to claim 1, characterized in that: The push-in port (3) and the pull-out port (4) are spaced apart on the housing (15), and the pull-out port (4) is located on the side closer to the cylinder (1). The other push-in port (3) and the pull-out port (4) are symmetrically arranged on the outside of the housing (15).

3. The ultra-thin hollow rotary hydraulic cylinder for both horizontal and vertical applications according to claim 1, characterized in that: The fastening port (11) and the mounting port (12) are evenly distributed alternately on the circumferential sidewall of the cylinder body (1). The fastening port (11) is used to insert fastening connectors, and the mounting port (12) is used for positioning and connection with the external assembly structure.

4. The ultra-thin hollow rotary hydraulic cylinder for both horizontal and vertical use according to claim 1, characterized in that: The bearing (8) is sleeved on the outside of the hollow main shaft (7), and one side of the bearing (8) abuts against the inner wall of the cylinder (1) and the other side is correspondingly engaged with the valve shaft (2) to realize the rotational support of the hollow main shaft (7) relative to the cylinder (1).

5. A horizontal / vertical dual-purpose ultra-thin hollow rotary cylinder according to claim 1, characterized in that: The front locking port (13) and the rear locking port (14) are evenly distributed circumferentially on the end face of the cylinder (1), and the central angle distance between adjacent front locking ports (13) and rear locking ports (14) is equal.

6. A horizontal / vertical dual-purpose ultra-thin hollow rotary cylinder according to claim 1, characterized in that: The oil return port (5) is axially parallel to the valve shaft (2), and the oil return port (5) is connected to the oil passage of the cylinder (1) through the internal channel of the housing (15).

7. A horizontal / vertical dual-purpose ultra-thin hollow rotary cylinder according to claim 1, characterized in that: The stop (10) is a boss structure, and the stop (10) and the internal thread (9) are distributed sequentially along the axial direction of the cylinder body (1).

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