Three-degree-of-freedom lifting and rotating device

Abstract

The utility model relates to the technical field of automatic product machining and rotary lifting equipment, in particular to a three-degree-of-freedom lifting and rotating device which comprises a rack, a vertical displacement mechanism, a lifting and rotating mechanism and a clamping and rotating mechanism. The rack is composed of a base and a top plate, and a guide rail and a vertical displacement driving device are arranged between the base and the top plate and used for achieving vertical movement of a workpiece. The lifting rotating mechanism comprises a front-back rotation driving device, a first rotation driving module, a left-right limiting guide wheel and a front-back limiting guide wheel, and front-back rotation of a workpiece is achieved. The clamping and rotating mechanism is installed in the rotating frame and comprises a center shaft and a positioning tool, and left-right rotation of the workpiece is achieved through a second rotation driving module. The device adopts a modular design and is convenient to maintain and replace. And through a high-precision servo motor and a stable hydraulic system, accurate positioning and rotation of a workpiece in multiple dimensions are ensured, and the device is suitable for application scenes such as precision assembly and automatic detection.

Description

Technical Field

[0001] The utility model relates to the technical fields of product automatic processing and rotary lifting equipment, and particularly relates to a three-degree-of-freedom lifting and rotating device. Background Technique

[0002] The information disclosed in the background technique of the utility model is only intended to enhance the understanding of the overall background of the utility model, and is not necessarily regarded as an admission or an indication in any form that this information constitutes the prior art already known to those of ordinary skill in the art.

[0003] With the development of modern industrial technology, automatic and intelligent production has become the mainstream trend in the manufacturing industry. In the fields of product assembly, inspection, processing, and experimental testing, higher requirements are put forward for the precise position control of workpieces.

[0004] Traditional handling and positioning equipment often only provides limited degrees of freedom of movement, and it is difficult to meet the multi-angle and multi-directional adjustment requirements under complex working conditions. Especially in precision manufacturing and high-end experimental testing, in application scenarios that require frequent adjustment of the position and posture of workpieces, such as precision assembly lines and experimental devices for automatic detection, the workpiece not only needs to be stably lifted to a specified height, but also needs to be able to achieve precise positioning and rotation in multiple dimensions to ensure the accuracy and reliability of processing, assembly, or testing. Therefore, it is necessary to study a multi-degree-of-freedom lifting and rotating device with high precision, strong adaptability, easy maintenance, and reasonable cost. Content of the Utility Model

[0005] In order to solve the above technical problems, the utility model provides a three-degree-of-freedom lifting and rotating device, which is particularly suitable for application scenarios of product automatic processing, assembly, or inspection that require frequent adjustment of the position and posture of workpieces.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] A three-degree-of-freedom lifting and rotating device includes a frame, the frame includes a base and a top plate, a vertical displacement mechanism is arranged between the base and the top plate, the vertical displacement mechanism includes guide rails arranged on the left and right sides in the up and down direction and a vertical displacement driving device for driving the workpiece to move up and down;

[0008] A lifting and rotating mechanism is cooperatively installed on the guide rails;

[0009] The lifting and rotating mechanism includes a front and rear rotation driving device, a first rotation driving module, left and right limit guide wheels, and front and rear limit guide wheels;

[0010] The rotation drive module includes a housing, in which a driving gear and a driven gear that are in meshing engagement are installed. The driving gear is correspondingly installed on an input rotating shaft, and the driven gear is correspondingly installed on an output rotating shaft.

[0011] The left - right limit guide wheels and the front - rear limit guide wheels are fixedly installed on the housing of the first rotation drive module. The input rotating shaft of the first rotation drive module is in transmission connection with the output shaft of the front - rear rotation drive device.

[0012] A rotating frame is arranged between the left - right guide rails. Transmission shafts fixedly connected to the output shaft of the first rotation drive module are arranged on the left - right sides of the rotating frame. The rotating frame is further equipped with a clamping and rotating mechanism.

[0013] The clamping and rotating mechanism includes a central shaft rotatably installed in the rotating frame, and a positioning tooling for fastening the workpiece is arranged on the central shaft.

[0014] A second rotation drive module is installed on the rotating frame. The output rotating shaft of the second rotation drive module is in transmission connection with one end of the central shaft, and the input rotating shaft of the second rotation drive module is in transmission connection with the output shaft of the left - right rotation drive device.

[0015] Preferably, equipment for processing or detecting the workpiece is installed on the base.

[0016] Preferably, the vertical displacement drive device is a hydraulic telescopic rod, and the front - rear rotation drive device and the left - right rotation drive device are servo motors.

[0017] Preferably, the positioning tooling includes a positioning component and a rotating clamping component.

[0018] Preferably, the left - right guide rails are provided with a pitch fine - tuning screw for adjusting the width and its threaded fasteners.

[0019] Preferably, diagonal braces for strengthening the stability of the guide rails are arranged on the base.

[0020] The beneficial effects of the present utility model include but are not limited to the following:

[0021] By the combined use of the vertical displacement mechanism, the front - rear rotation drive device, and the left - right rotation drive device, the present utility model realizes multi - degree - of - freedom movement, thereby achieving precise positioning and rotation of the workpiece in three - dimensional space. This multi - degree - of - freedom movement ability greatly improves the flexibility of workpiece processing and can adapt to various complex operation requirements.

[0022] The present utility model can quickly and accurately complete the position adjustment and attitude change of the workpiece, shortening the time of product processing, detection, assembly, etc., and improving production efficiency.

[0023] Both the lifting and rotating mechanism and the clamping and rotating mechanism of the utility model adopt a rotary drive module and are designed modularly, which not only improves the production efficiency, flexibility and reliability of the device, but also reduces the maintenance cost. Brief Description of the Drawings

[0024] Figure 1 is a schematic front view of the overall structure of the utility model;

[0025] Figure 2 is a schematic side view of the overall structure of the utility model;

[0026] Figure 3 is a schematic diagram of the clamping and rotating mechanism and the workpiece mounting structure;

[0027] Figure 4 is a schematic diagram of the front and back rotation states of the workpiece;

[0028] Figure 5 is a schematic diagram of the mounting structure of the lifting and rotating mechanism;

[0029] Figure 6 is a schematic diagram of the specific structure of the lifting and rotating mechanism;

[0030] Figure 7 is Figure 6 a schematic cross-sectional structure diagram along the A-A direction in

[0031] The reference numerals involved in the drawings are:

[0032] 100, rotary drive module; 110, housing; 120, driven rotating shaft; 130, driven gear; 140, driving rotating shaft; 150, driving gear; 1, frame; 11, base; 12, top plate; 13, diagonal brace; 14, guide rail; 2, vertical displacement driving device; 3, rotating frame; 31, transmission shaft; 32, positioning tooling; 4, lifting and rotating mechanism; 41, front and back rotation driving device; 42, front and back limit guide wheels; 43, left and right limit guide wheels; 5, clamping and rotating mechanism; 51, left and right rotation driving device; 6, workpiece; 7, central axis; 8, equipment. Detailed Description of the Preferred Embodiments

[0033] In order to enable those skilled in the art to better understand the present utility model, the technical solutions of the present utility model will be further described below in conjunction with the drawings and embodiments.

[0034] Figures 1 to 7A three-degree-of-freedom lifting and rotating device is presented, including a frame 1. The frame 1 includes a base 11 and a top plate 12. A vertical displacement mechanism is arranged between the base 11 and the top plate 12. The vertical displacement mechanism includes guide rails 14 arranged on the left and right sides in the up-and-down direction and a vertical displacement driving device 2 for driving the workpiece 6 to move up and down.

[0035] A lifting and rotating mechanism 4 is fitted and installed on the guide rails 14.

[0036] The lifting and rotating mechanism 4 includes a front-back rotation driving device 41, a first rotation driving module 100, left-right limit guide wheels 43, and front-back limit guide wheels 42.

[0037] The rotation driving module 100 includes a housing 110. Inside the housing 110, a driving gear 150 and a driven gear 130 that are meshed and matched are installed. The driving gear 150 is correspondingly installed on an input rotating shaft, and the driven gear 130 is correspondingly installed on an output rotating shaft.

[0038] The left-right limit guide wheels 43 and the front-back limit guide wheels 42 are fixedly installed on the housing 110 of the first rotation driving module 100. The input rotating shaft of the first rotation driving module 100 is in transmission connection with the output shaft of the front-back rotation driving device 41.

[0039] A rotating frame 3 is arranged between the guide rails 14 on the left and right sides. On the left and right sides of the rotating frame 3, there are transmission shafts 31 fixedly connected to the output shaft of the first rotation driving module 100. The rotating frame 3 is also equipped with a clamping and rotating mechanism 5.

[0040] The clamping and rotating mechanism 5 includes a central shaft 7 rotatably installed inside the rotating frame 3. A positioning tooling 32 for fastening the workpiece 6 is arranged on the central shaft 7.

[0041] A second rotation driving module 100 is installed on the rotating frame 3. The output rotating shaft of the second rotation driving module 100 is in transmission connection with one end of the central shaft 7. The input rotating shaft of the second rotation driving module 100 is in transmission connection with the output shaft of the left-right rotation driving device 51.

[0042] On the base 11, there is installed a device 8 for processing or detecting the workpiece 6, and the workpiece 6 is processed or detected from the bottom-up direction.

[0043] The vertical displacement driving device 2 is a hydraulic telescopic rod (hydraulic cylinder), which can provide more stable and stronger power for the lifting of the workpiece 6. The front-back rotation driving device 41 and the left-right rotation driving device 51 are servo motors, and the servo motors have higher precision and better stability.

[0044] The positioning tooling 32 includes a positioning component (such as a positioning sleeve and a positioning block) and a rotary clamping component (including a rotary handle), which can also be designed according to the prior art. As long as the workpiece 6 can be fixedly installed on the central shaft 7, it is very easy to achieve and will not be elaborated here.

[0045] On the left and right sides of the guide rail 14, there are provided spacing fine-tuning screws for adjusting the width and their threaded fasteners, which are convenient for fine-tuning the guide rail 14 and improving adaptability.

[0046] On the base 11, there is provided a diagonal brace 13 for strengthening the stability of the guide rail 14, making the stability of the guide rail 14 higher, so that the vertical displacement, forward and backward rotation, and left and right rotation are more stable, thus ensuring the overall accuracy of the device.

[0047] In the specification, claims and above-mentioned drawings of the present utility model, terms such as "upper", "lower", "outer side", "inner side", etc., if any, are used to distinguish the relative relationship in position and do not need to be qualitatively defined. It should be understood that such used data can be interchanged under appropriate circumstances so that the embodiments of the present utility model described here can be implemented in an order different from those illustrated or described here. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion.

[0048] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present utility model. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present utility model. Therefore, the present utility model will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A three-degree-of-freedom lifting and rotating device, comprising a frame, the frame including a base and a top plate, a vertical displacement mechanism is provided between the base and the top plate, the vertical displacement mechanism including guide rails arranged on the left and right sides in the up and down direction and a vertical displacement driving device for driving the workpiece to move up and down; characterized in that: A lifting and rotating mechanism is cooperatively installed on the guide rails; The lifting and rotating mechanism includes a front and rear rotation driving device, a first rotation driving module, left and right limit guide wheels and front and rear limit guide wheels; The rotation driving module includes a housing, in which a driving gear and a driven gear that are meshed and cooperated are installed, the driving gear is correspondingly installed on an input rotating shaft, and the driven gear is correspondingly installed on an output rotating shaft; The left and right limit guide wheels and the front and rear limit guide wheels are fixedly installed on the housing of the first rotation driving module, and the input rotating shaft of the first rotation driving module is in transmission connection with the output shaft of the front and rear rotation driving device; A rotating frame is arranged between the guide rails on the left and right sides, transmission shafts fixedly connected to the output shafts of the first rotation driving module are arranged on the left and right sides of the rotating frame, and a clamping and rotating mechanism is further installed on the rotating frame; The clamping and rotating mechanism includes a central shaft rotatably installed in the rotating frame, and a positioning tooling for fastening the workpiece is arranged on the central shaft; A second rotation driving module is installed on the rotating frame, the output rotating shaft of the second rotation driving module is in transmission connection with one end of the central shaft, and the input rotating shaft of the second rotation driving module is in transmission connection with the output shaft of the left and right rotation driving device.

2. The three-degree-of-freedom lifting and rotating device according to claim 1, characterized in that: Equipment for processing or detecting the workpiece is installed on the base.

3. The three-degree-of-freedom lifting and rotating device according to claim 1, characterized in that: The vertical displacement driving device is a hydraulic telescopic rod, and the front and rear rotation driving device and the left and right rotation driving device are servo motors.

4. The three-degree-of-freedom lifting and rotating device according to claim 1, characterized in that: The positioning tooling includes a positioning component and a rotating clamping component.

5. The three-degree-of-freedom lifting and rotating device according to claim 1, characterized in that: Spacing fine-tuning screws and their threaded fasteners for adjusting the width are arranged on the guide rails on the left and right sides.

6. The three-degree-of-freedom lifting and rotating device according to any one of claims 1 to 5, characterized in that: Diagonal braces for strengthening the stability of the guide rails are arranged on the base.

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