A wire-controlled differential lifting and rotating drive device

Abstract

The invention discloses a wire-controlled differential lifting and rotating drive device, which belongs to the field of execution equipment, and includes: a bracket; two lifting drive mechanisms, which are fixedly installed on both sides of the bracket in parallel and oppositely; a turntable, which is rotatably connected to a slide, the slide is slidably connected to the bracket, and the rotation axis of the turntable and the sliding direction of the slide are parallel to the lifting drive mechanism; the two lifting drive mechanisms drive the turntable to rotate through a wire-controlled cable respectively; the wire-controlled cable is fixed to the output end of the lifting drive mechanism, and the lower end of the wire-controlled cable extends downward and is connected to the turntable after being changed in direction by a change-direction pulley installed on the slide, and the upper end of the wire-controlled cable extends upward after being turned by a steering pulley installed on the bracket and extends downward, and is connected to the turntable after being changed in direction by another change-direction pulley installed on the slide. The invention is not only simple in structure and reasonable in design, but also convenient in operation and easy to use.

Description

Technical Field

[0001] The present invention relates to the field of beauty equipment, and in particular to a wire-controlled differential lifting and rotating driving device. Background Art

[0002] Thermage is a beauty device that can stretch and tighten the skin, is highly safe, and does not cause wounds. Its principle is radio frequency technology. The core component of Thermage is the array radio frequency head. When the array radio frequency head is powered on, the positive and negative ions form a return circuit, and an electromagnetic field is generated around the return circuit. The electromagnetic field passes through the surface of the skin and enters the subcutaneous tissue. Under the action of high frequency and dot matrix electrodes, it resonates with human cells and accelerates the metabolism of subcutaneous tissue, increases collagen in subcutaneous tissue, improves tissue nutrition, increases enzyme activity, increases blood circulation, tightens the skin, and makes the skin look younger. Therefore, Thermage is very popular among women.

[0003] However, during the current Thermage treatment, staff need to hold a Thermage treatment gun with an array radio frequency head. During the Thermage treatment, the Thermage treatment gun needs to constantly adjust the distance from the human body and needs to constantly move in a small range, which undoubtedly increases the workload of staff.

[0004] There are also devices that use a robot to operate the Thermage treatment gun, but the robot that performs the above-mentioned actions generally has a complex structure, which is not only not conducive to operation, but also has certain deficiencies in maintenance process and reliability. Summary of the invention

[0005] In view of the problems in the prior art that the manipulator used to drive the Thermage treatment gun to move has a complex structure and cumbersome operation, the purpose of the present invention is to provide a wire-controlled differential lifting and rotating drive device.

[0006] To achieve the above object, the technical solution of the present invention is:

[0007] A wire-controlled differential lifting and rotating drive device comprises a bracket, a lifting drive mechanism and a turntable; the lifting drive mechanism comprises two, and the two lifting drive mechanisms are fixedly installed on both sides of the bracket in parallel and opposite to each other; the turntable is rotatably connected to a slide, the slide is slidably connected to the bracket, and the rotation axis of the turntable and the sliding direction of the slide are parallel to the lifting drive mechanism;

[0008] The output end of the lifting drive mechanism is connected to the side wall of the turntable through a wire control cable, so that the lifting drive mechanism converts the lifting movement of its output end into the rotational movement of the turntable through the wire control cable; wherein, when the output ends of the two lifting drive mechanisms move in the same direction, the rotation directions of the turntable are opposite.

[0009] Preferably, the wire control cable is fixed on the output end of the lifting drive mechanism, and the lower end of the wire control cable extends downward and is wound around the side wall of the turntable after being changed direction by a changing pulley installed on the slide, and the upper end of the wire control cable extends upward through a turning pulley installed on the bracket and then extends downward, and is also wound around the side wall of the turntable after being changed direction by another changing pulley installed on the slide.

[0010] Preferably, at least two cableway grooves adapted to the wire control cables are correspondingly arranged on the circumferential side walls of the turntable.

[0011] Preferably, the lifting drive mechanism comprises:

[0012] A lifting motor, the lifting motor is fixedly mounted on the bracket;

[0013] A transmission screw, the transmission screw is rotatably connected to the bracket, and the transmission screw is drivingly connected to the lifting motor;

[0014] and a screw nut, wherein the screw nut is screwed on the transmission screw and the screw nut is slidably connected to the bracket.

[0015] Preferably, a sliding block is fixed on the screw nut, and a sliding rail matched with the sliding block is installed on the bracket.

[0016] Preferably, the slide is slidably connected to the bracket via the slide rail.

[0017] By adopting the above technical solution, the beneficial effect of the present invention is that: due to the setting of the lifting drive mechanism, the turntable and the wire control cable, the direction and speed of the torsion of the turntable by the two wire control cables can be controlled by controlling the movement direction and speed of the two lifting drive mechanisms, and when the torsion forces given by the two wire control cables cancel each other out, the turntable only performs lifting movement, when the torsion force given by the single-sided wire control cable only performs rotation movement, and when the torsion forces given by the two wire control cables cannot cancel each other out, the turntable performs lifting and rotation movement at the same time, thereby driving the actuator installed on the turntable to perform duplicate mechanical movement through a simple control mechanism. When applied to Thermage treatment, the distance between the treatment head installed on the turntable and the human face and the treatment range can be adjusted under the drive of the wire-controlled differential lifting and rotating drive device, thereby achieving a precise and easy-to-operate control effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the present invention;

[0019] Figure 2 It is a schematic diagram of the structure of the present invention in another direction;

[0020] Figure 3 It is a structural schematic diagram of another direction of the present invention;

[0021] Figure 4 It is a schematic diagram of the connection between the centerline control cable, the slider and the turntable of the present invention;

[0022] Figure 5 for Figure 4 Left view of;

[0023] Figure 6 It is a schematic diagram of two wire-controlled cables driving the same turntable in the present invention.

[0024] In the figure: 1- bracket, 2- lifting drive mechanism, 21- lifting motor, 22- transmission screw, 23- screw nut, 24- slider, 25- slide rail, 26- direction-changing pulley, 27- steering pulley, 3- turntable, 31- connecting rod, 4- slide, 41- through slot, 5- line control cable. DETAILED DESCRIPTION

[0025] The specific embodiments of the present invention are further described below in conjunction with the accompanying drawings. It should be noted that the description of these embodiments is used to help understand the present invention, but does not constitute a limitation of the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0026] It should be noted that, in the description of the present invention, the directions or positional relationships indicated by the terms "up", "down", "left", "right", "front", "back", etc. are descriptions of the structure of the present invention based on the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0027] The "first" and "second" in this technical solution are only used to distinguish the names of the same or similar structures, or corresponding structures with similar functions, and are not an arrangement of the importance of these structures, nor do they have a ranking, comparison of size, or other meanings.

[0028] In addition, unless otherwise clearly specified and limited, the terms "installation" and "connection" should be understood in a broad sense. For example, the connection can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be a connection between the two structures. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood based on the overall idea of ​​the present invention and the specific context of the present solution.

[0029] Embodiment 1

[0030] A wire-controlled differential lifting and rotating drive device, such as Figure 1-3 As shown, it includes a bracket 1, a lifting drive mechanism 2, a turntable 3, a slide 4 and a wire control cable 5.

[0031] The bracket 1 as a whole is a rectangular frame structure formed by splicing metal profiles, including a top plate, a bottom plate and two vertical plates connected therebetween, and the two vertical plates are arranged opposite to each other and at intervals.

[0032] There are two lifting drive mechanisms 2, and the two lifting drive mechanisms 2 are fixedly installed on both sides of the bracket 1 in parallel and opposite to each other. For example, in this embodiment, the lifting drive mechanism 2 includes a lifting motor 21, a transmission screw 22 and a screw nut 23. The lifting motor 21 is fixedly installed on the top plate, and the upper and lower ends of the transmission screw 22 are rotatably connected to the top plate and the bottom plate through bearings, respectively, and the transmission screws 22 in the two lifting drive mechanisms 2 are respectively arranged near the two vertical plates, thereby increasing the effective utilization space in the bracket 1 (the space between the two vertical plates), and the lifting motor 21 drives the corresponding transmission screw 22 to rotate through the synchronous belt transmission mechanism. The two transmission screws 22 are respectively screwed with screw nuts 23, and the screw nuts 23 are also fixed with sliders 24, and the bracket 1 (specifically the two vertical plates) is equipped with a slide rail 25 used in conjunction with the slider 24.

[0033] The slide 4 is configured as a shell-shaped structure formed by splicing plates, and the left and right sides of the slide 4 are both slidably connected to the bracket 1, for example, the left and right sides of the slide 4 are also slidably connected to the slide rails 25 arranged on the two vertical plates. The turntable 3 is arranged in the slide 4, and the turntable 3 is rotatably connected to the top wall and the bottom wall of the slide 4 through a short shaft, and the rotation axis of the turntable 3 and the sliding direction of the slide 4 are configured to be parallel to the movement direction of the output end of the lifting drive mechanism 2. In addition, a through groove 41 is also provided on the bottom wall of the slide 4, so that the connecting rod 31 installed on one side of the bottom surface of the turntable 3 can extend from the through groove 41, and the connecting rod 31 is used to connect with the actuator, and the through groove 41 is configured to have a certain arc (centered on the rotation axis of the turntable 3), so that the connecting rod 41 can move in the through groove 41 when the turntable 3 rotates, and the turntable 3 can also be protected by the slide 4.

[0034] The output ends of the two lifting drive mechanisms 2 drive the turntable 3 to rotate through a wire control cable 5. Figure 4 and Figure 5As shown, for one of the wire control cables 5, the middle part of the wire control cable 5 is fixed on the output end of the lifting drive mechanism 2, the lower end of the wire control cable 5 extends downward and is connected to the turntable 3 after being changed in direction by a change-direction pulley 26 installed on the slide 4, and the upper end of the wire control cable 5 first extends upward and changes to extend downward after being changed in direction by a turn pulley 27 installed at the upper position of the bracket 1, and is also connected to the turntable 3 after being changed in direction by another change-direction pulley 26 installed on the slide 4. Among them, the turn pulley 27 is used to change the extension direction of the wire control cable 5 in the vertical plane, and the change-direction pulley 26 is used to change the direction of the wire control cable 5 from the vertical plane to the horizontal plane, so as to drive the turntable 3 to rotate. Typically, a steering pulley 27 is also installed on the slide 4, and each wire control cable 5 corresponds to two steering pulleys 27. The steering pulley 27 is used to enable both ends of the wire control cable 5 to better cooperate with the changing pulley 26. Correspondingly, the top wall and bottom wall of the slide 4 are provided with through holes for the wire control cable 5 to pass through.

[0035] It can be understood that, since both ends of the wire control cable 5 are connected to the turntable 3, for a single lifting drive mechanism 2, the lifting movement of its output end can drive the turntable 3 to rotate, such as Figure 4 As shown, for example, when the slider 24 rises, the two ends of the wire control cable 5 connected to the turntable 3 perform reverse synchronous motion, thereby driving the turntable 3 to rotate, for example, counterclockwise rotation when viewed from above. It is understandable that the same effect can be achieved for another lifting drive mechanism 2, and the wire control cable 5 only needs to be wound around the other side of the change-direction pulley 26 to drive the turntable 3 to rotate clockwise when the slider 24 rises. Figure 6 As shown, when the output ends (slide blocks 24) of the two lifting drive mechanisms 2 move synchronously in the same direction, the torsional forces given by the two wire control cables 5 to the turntable 3 cancel each other out, so that the turntable 3 is only forced to perform lifting movement, and the lifting direction of the turntable 3 is synchronized with the output ends of the two lifting drive mechanisms 2; and when the output ends of the two lifting drive mechanisms 2 move synchronously in opposite directions, the torsional forces given by the two wire control cables 5 to the turntable 3 are superimposed on each other, and the turntable 3 rotates at this time, and both clockwise and counterclockwise rotation can be achieved.

[0036] When in use, one side of the bottom surface of the turntable 3 is used to install the actuator. By controlling the movement direction and movement speed of the output ends of the two lifting drive mechanisms 2, the actuator can be controlled to perform lifting and rotating movements. At the same time, the direction and speed of the lifting movement and the direction and speed of the rotational movement can also be controlled, thereby realizing a variety of complex movement forms through a simple structural design.

[0037] Embodiment 2

[0038] The difference between the embodiment 1 and the embodiment 1 is that in the embodiment 1, at least two cableway grooves adapted to the wire control cables 5 are correspondingly arranged on the circumferential side wall of the turntable 3 .

[0039] In this way, both ends of the wire control cable 5 are first wound in the cableway groove and then the ends are fixed. For example, a hole is opened at the bottom of the cableway groove, and the ends of the wire control cable 5 are inserted into the hole and then pressed and fixed by a pin or a plug.

[0040] In this embodiment, three cableway grooves are provided on the turntable 3. Since the two wire control cables 5 have four ends in total, one end of the two wire control cables 5 shares one cableway groove, and the other ends of the two wire control cables 5 correspond to the other two cableway grooves respectively.

[0041] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions and variations of these embodiments are made without departing from the principles and spirit of the present invention, and still fall within the scope of protection of the present invention.

Claims

1. A wire-controlled differential lifting and rotating drive device, characterized in that: It comprises a bracket, a lifting drive mechanism and a turntable; there are two lifting drive mechanisms, which are fixedly installed on both sides of the bracket in parallel and opposite to each other; the turntable is rotatably connected to a slide, the slide is slidably connected to the bracket, and the rotation axis of the turntable and the sliding direction of the slide are parallel to the lifting drive mechanism; The output end of the lifting drive mechanism is connected to the side wall of the turntable through a wire control cable, so that the lifting drive mechanism converts the lifting motion of its output end into the rotational motion of the turntable through the wire control cable; wherein, when the output ends of the two lifting drive mechanisms move in the same direction, the rotation directions of the turntable are opposite; The wire control cable is fixed on the output end of the lifting drive mechanism, and the lower end of the wire control cable extends downward and is wound around the side wall of the turntable after being changed in direction by a change-direction pulley installed on the slide, and the upper end of the wire control cable is turned upward by a turn pulley installed on the bracket and then extends downward, and is also wound around the side wall of the turntable after being changed in direction by another change-direction pulley installed on the slide; At least two cableway grooves adapted to the wire control cables are correspondingly arranged on the circumferential side walls of the turntable.

2. The wire-controlled differential lifting and rotating driving device according to claim 1, characterized in that: The lifting drive mechanism comprises: A lifting motor, the lifting motor is fixedly mounted on the bracket; A transmission screw, the transmission screw is rotatably connected to the bracket, and the transmission screw is drivingly connected to the lifting motor; and a screw nut, wherein the screw nut is screwed on the transmission screw and the screw nut is slidably connected to the bracket.

3. The wire-controlled differential lifting and rotating driving device according to claim 2, characterized in that: A sliding block is fixed on the screw nut, and a sliding rail matched with the sliding block is installed on the bracket.

4. The wire-controlled differential lifting and rotating driving device according to claim 3, characterized in that: The slide table is slidably connected to the bracket via the slide rail.

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