A rotary type pulling mechanism

Abstract

The present application relates to the technical field of lifting mechanism, and aims to provide a rotary lifting mechanism, which comprises a frame body, a lifting mechanism, a rotating mechanism and a lifting mechanism installed on the frame body, the frame body is provided with a placing position for placing materials, the lifting mechanism serves as an execution mechanism for material lifting action and is used to provide the lifting action of the lifting mechanism and the materials, the rotating mechanism serves as an execution mechanism for material rotating action and is used to provide the rotating action of the lifting mechanism, and the lifting mechanism is used to clamp the materials on the placing position, the beneficial effects of the present application are that the rotating mechanism and the lifting mechanism share an installation shaft as a power output end, the integration of the lifting function and the rotating function is realized, and the overall occupied space of the device is reduced; meanwhile, the installation shaft and the rotating sleeve adopt a cooperation form of axial relative sliding and circumferential synchronous rotation, so that the lifting action and the rotating action can be independently controlled and do not interfere with each other, which helps to improve the collaborative control precision of the two actions.

Description

Technical Field

[0001] This invention relates to the field of lifting mechanism technology, and more specifically, to a rotary lifting mechanism. Background Technology

[0002] With the deepening development of intelligent manufacturing and Industry 4.0, automated production lines are placing higher demands on the flexibility, precision, and efficiency of material transfer and attitude adjustment. Especially in fields such as automobile manufacturing, electronic assembly, and precision instrument handling, it is often necessary to position materials at multiple angles in the horizontal plane, combined with multi-level height adjustments in the vertical direction, in order to achieve precise gripping, placement, or assembly.

[0003] Traditional material clamping and transfer devices often adopt a split structure of "single-stage lifting cylinder + rotary cylinder" or achieve lifting and rotation by simply connecting two sets of cylinders in series. In practical applications, this type of structure has problems such as limited lifting stroke and adjustment accuracy, discontinuous multi-stage lifting actions, complex coordination control of rotation and lifting, and low spatial layout and flexibility.

[0004] Therefore, there is an urgent need for an integrated mechanism that combines 360° rotation with multi-stage high-precision lifting functions and allows for multi-level adjustment of clamping opening. This mechanism can ensure the coordinated precision and smooth operation of multiple actions such as rotation, lifting, and clamping, and maintain high precision while keeping the flow rate high, so as to meet the increasingly demanding flexible and high-cycle production requirements of high-end manufacturing. Summary of the Invention

[0005] In view of the problems existing in the prior art, the present invention provides a rotary lifting mechanism to solve the technical problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a rotary lifting mechanism, comprising a frame body and a lifting mechanism, a rotating mechanism and a lifting mechanism mounted on the frame body, wherein the frame body is provided with a placement position for placing materials, the lifting mechanism serves as the actuator for lifting the materials and providing lifting and lowering actions for the lifting mechanism and the materials, the rotating mechanism serves as the actuator for rotating the materials and providing rotational actions for the lifting mechanism, and the lifting mechanism is used to clamp the materials located in the placement position.

[0007] The present invention is further configured such that the lifting mechanism includes a mounting shaft, a first clamping arm and a second clamping arm, both the first clamping arm and the second clamping arm being fixed on the mounting shaft, and both the first clamping arm and the second clamping arm being used to clamp the material located in the placement position.

[0008] The present invention is further configured such that the lifting mechanism includes a plurality of lifting cylinders connected in series, wherein the uppermost lifting cylinder is fixed to the frame body, and the remaining lifting cylinders are provided with guide components between themselves and the frame body to limit the circumferential rotation of the lifting cylinders, and the piston rod of the lowermost lifting cylinder is fixedly connected to the mounting shaft.

[0009] The present invention is further configured such that the rotating mechanism includes a drive motor, a drive gear, a driven gear, and a rotating sleeve, wherein the drive motor is fixed on the frame body and its output shaft is connected to the drive gear, the driven gear is fixedly sleeved on the outside of the rotating sleeve and meshes with the drive gear, the rotating sleeve is sleeved on the outside of the mounting shaft, and the mounting shaft and the rotating sleeve can move relative to each other axially but cannot rotate relative to each other circumferentially.

[0010] The invention is further configured such that both the first clamping arm and the second clamping arm are provided with T-shaped opening slots adapted to the material, and the distances between the two T-shaped opening slots and the axis of the mounting shaft are different.

[0011] The present invention is further configured such that the lifting mechanism includes a first mounting plate and a second mounting plate, the first mounting plate and the second mounting plate being sleeved on the outside of the mounting shaft and fixedly connected, the first clamping arm and the second clamping arm being installed between the first mounting plate and the second mounting plate, and the first mounting plate, the first clamping arm and the second mounting plate being fixedly connected.

[0012] The invention is further configured such that a positioning section with a rectangular cross-section is provided on the mounting shaft, and a first mounting plate and a second mounting plate are arranged around the positioning section, and both the first mounting plate and the second mounting plate are provided with positioning grooves that cooperate with the positioning end; through the positioning section and the first mounting plate and the second mounting plate in a limiting cooperation, the mounting shaft and the first mounting plate and the second mounting plate are relatively fixedly connected, so as to prevent the first mounting plate and the second mounting plate from moving circumferentially around the axis of the mounting shaft, and at the same time, to prevent the two from moving axially along the axis of the mounting shaft.

[0013] The present invention is further configured such that the frame body includes a base, a middle frame and a top frame, wherein the middle frame is composed of a plurality of first support rods and a middle mounting plate, the top and bottom ends of the plurality of first support rods are respectively connected to the middle mounting plate and the base, and the top frame is composed of a plurality of second support rods and a top mounting plate, the top and bottom ends of the plurality of second support rods are respectively connected to the top mounting plate and the middle mounting plate.

[0014] The invention is further configured such that the lifting mechanism is located within the top frame, and the uppermost lifting cylinder is fixedly installed at the bottom of the top mounting plate.

[0015] The invention is further configured such that the rotating mechanism is located at the middle frame, wherein the drive motor is located on the upper surface of the middle mounting plate, its output shaft passes through the middle mounting plate and is connected to the drive gear, the rotating sleeve passes through the middle mounting plate, and the rotating sleeve is rotatably connected to the middle mounting plate.

[0016] The invention is further configured such that the top end of the mounting shaft passes through the rotating sleeve and is connected to the lifting mechanism, the bottom end of which slides within the base, and the mounting shaft and the base can move relative to each other along the axial direction.

[0017] Compared with the prior art, the present invention provides a rotary lifting mechanism, which has the following advantages: 1. This application uses multiple sets of lifting cylinders connected in series to form a lifting mechanism, and at the same time, it is equipped with guide components to circumferentially limit the cylinder body of the non-top lifting cylinder, which expands the adjustable range of the lifting stroke and improves the coaxiality and running stability of the multi-stage lifting action.

[0018] 2. This application adopts a gear meshing transmission combined with a rotating sleeve rotation mechanism, which shares a mounting shaft as the power output end with the lifting mechanism, realizing the integrated layout of lifting and rotating functions and reducing the overall space occupied by the device; at the same time, the mounting shaft and the rotating sleeve adopt a cooperative form in which they can slide relative to each other axially and rotate synchronously in the circumference, so that the lifting and rotating actions can be controlled independently and do not interfere with each other, which helps to improve the coordination control accuracy of the two actions.

[0019] 3. The lifting mechanism of this application is provided with two clamping arms with different rotation radii, and the clamping arms are provided with T-shaped opening slots adapted to the materials, so as to facilitate the clamping of the materials. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the rotary lifting mechanism; Figure 2 for Figure 1 A front view structural diagram; Figure 3 This is a schematic diagram of the lifting mechanism; Figure 4 for Figure 3 A schematic diagram of the exploded structure; Figure 5 This is a schematic diagram of the rotating mechanism.

[0021] In the diagram: 1. Main frame; 101. Placement position; 102. Base; 103. Middle frame; 1031. First support rod; 1032. Middle mounting plate; 104. Top frame; 1041. Second support rod; 1042. Top mounting plate; 2. Lifting mechanism; 201. Lifting cylinder; 202. Guide component; 3. Rotating mechanism; 301. Drive motor; 302. Drive gear; 303. Driven gear; 304. Rotating sleeve; 305. Guide protrusion; 4. Lifting mechanism; 401. Mounting shaft; 402. First clamping arm; 403. Second clamping arm; 404. T-shaped opening slot; 405. First mounting plate; 406. Second mounting plate; 407. Positioning section; 408. Positioning groove; 409. Guide groove. Detailed Implementation

[0022] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0023] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0024] In this invention, unless otherwise stated, the directional terms such as "up" and "down" generally refer to the directions shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" generally refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not intended to limit this invention.

[0025] A rotary lifting mechanism includes a frame body 1 and a lifting mechanism 2, a rotating mechanism 3 and a lifting mechanism 4 mounted on the frame body 1. The frame body 1 is provided with a placement position 101 for placing materials. The lifting mechanism 2 serves as the actuator for lifting the materials and provides lifting and lowering actions for the lifting mechanism 4 and the materials. The rotating mechanism 3 serves as the actuator for rotating the materials and provides rotating actions for the lifting mechanism 4. The lifting mechanism 4 is used to clamp the materials located on the placement position 101.

[0026] like Figure 1-2As shown, the frame body 1 includes a base 102, a middle frame 103, and a top frame 104. A placement position 101 for placing materials is provided on the base 102. The middle frame 103 is composed of a plurality of first support rods 1031 and a middle mounting plate 1032. The top and bottom ends of the plurality of first support rods 1031 are respectively connected to the middle mounting plate 1032 and the base 102. The top frame 104 is composed of a plurality of second support rods 1041 and a top mounting plate 1042. The top and bottom ends of the plurality of second support rods 1041 are respectively connected to the top mounting plate 1042 and the middle mounting plate 1032.

[0027] like Figure 1-2 As shown, the lifting mechanism 2 includes several lifting cylinders 201 connected in series, and the piston rod axes of the several lifting cylinders 201 are collinear; the uppermost lifting cylinder 201 is fixed to the lower surface of the top mounting plate 1042, and the remaining lifting cylinders 201 are provided with guide components 202 between them and the frame body 1 to restrict the circumferential rotation of the lifting cylinders 201; the piston rod of the lowermost lifting cylinder 201 is fixedly connected to the mounting shaft 401. Specifically, the guide component 202 is a guide block fixedly installed on the lifting cylinder 201. The guide block has a U-shaped groove, and the second support rod 1041 is located in the U-shaped groove. Through the limiting cooperation between the U-shaped groove and the second support rod 1041, the circumferential rotation of the lifting cylinder 201 can be restricted. The piston rod of the lowermost lifting cylinder 201 can rotate circumferentially in the cylinder body, providing space for the rotation of the mounting shaft 401 under the drive of the rotating mechanism 3.

[0028] like Figure 1 , 2 As shown in Figure 5, the rotating mechanism 3 includes a drive motor 301, a drive gear 302, a driven gear 303, and a rotating sleeve 304. The drive motor 301 is fixed to the upper surface of the intermediate mounting plate 1032, and its output shaft passes through the intermediate mounting plate 1032 and is connected to the drive gear 302. The driven gear 303 is fixedly sleeved on the outside of the rotating sleeve 304 and meshes with the drive gear 302. The rotating sleeve 304 is sleeved on the outside of the mounting shaft 401. The mounting shaft 401 and the rotating sleeve 304 can move relative to each other in the axial direction but cannot rotate relative to each other in the circumferential direction. The rotating sleeve 304 passes through the intermediate mounting plate 1032 and is rotatably connected to the intermediate mounting plate 1032 through a bearing.

[0029] Specifically, a guide groove 409 can be opened along the axial direction on the mounting shaft 401, and a guide protrusion 305 adapted to the guide groove 409 can be provided in the rotating sleeve 304. The guide protrusion 305 and the guide groove 409 cooperate to achieve a connection relationship in which the two can only move relative to each other along the axial direction and cannot rotate relative to each other in the circumferential direction.

[0030] like Figure 1-4 As shown, the lifting mechanism 4 includes a mounting shaft 401, a first clamping arm 402, a second clamping arm 403, a first mounting plate 405, and a second mounting plate 406.

[0031] Specifically, the mounting shaft 401 is provided with a positioning section 407 with a rectangular cross-section. The first mounting plate 405 and the second mounting plate 406 are arranged around the positioning section 407. The first mounting plate 405 and the second mounting plate 406 are both provided with positioning grooves 408 that cooperate with the positioning end. The first mounting plate 405 and the second mounting plate 406 are detachably connected by bolts. Through the positioning section 407 and the first mounting plate 405 and the second mounting plate 406 in a limiting cooperation, the mounting shaft 401 is relatively fixedly connected to the first mounting plate 405 and the second mounting plate 406, so as to prevent the first mounting plate 405 and the second mounting plate 406 from moving circumferentially around the axis of the mounting shaft 401, and at the same time, to prevent the two from moving axially along the axis of the mounting shaft 401.

[0032] The first clamping arm 402 and the second clamping arm 403 are both located between the first mounting plate 405 and the second mounting plate 406. The first mounting plate 405, the first clamping arm 402 and the second mounting plate 406 are fixed together by bolts. The first mounting plate 405, the second clamping arm 403 and the second mounting plate 406 are also fixed together by bolts. In order to improve the connection accuracy, positioning structures such as positioning pins can be installed between the first clamping arm 402, the second clamping arm 403 and the first mounting plate 405 and the second mounting plate 406.

[0033] In order to facilitate the gripping of materials by the first clamping arm 402 and the second clamping arm 403, a T-shaped opening slot 404 is provided at the bottom of the first clamping arm 402 and the second clamping arm 403 near the far end, and the distance between the two T-shaped opening slots 404 and the axis of the mounting shaft 401 is different; so as to achieve the gripping of two materials at different distances.

[0034] To further improve the stability of the lifting mechanism 4, the bottom end of the mounting shaft 401 can be slidably installed in the base 102, so that the mounting shaft 401 and the base 102 can move relative to each other in the axial direction and rotate relative to each other in the circumferential direction.

[0035] Work process: 1. Lifting process: Several lifting cylinders 201 extend and retract, driving the installation shaft 401 or the material held by the installation shaft 401 and the lifting mechanism 4 to lift synchronously. When the installation shaft 401 is lifted, it moves axially within the rotating sleeve 304 and the base 102. 2. Rotation process: Start the drive motor 301, which drives the drive gear 302 to rotate. In turn, the gear meshing drives the driven gear 303 and the rotating sleeve 304 fixedly connected to the driven gear 303 to rotate synchronously. Since the rotating sleeve 304 and the mounting shaft 401 cannot rotate relative to each other, the rotation of the rotating sleeve 304 will drive the mounting shaft 401 to rotate synchronously, thereby stimulating the lifting mechanism 4 or the lifting mechanism 4 and the material held by the lifting mechanism 4 to rotate synchronously. 3. Lifting and engaging process: The lifting mechanism 2 drives the lifting mechanism 4 to correspond with the material, so that the T-shaped opening slot 404 on the lifting mechanism 4 is aligned with the material. Then, the rotating mechanism 3 drives the lifting mechanism 4 to rotate, so that the T-shaped opening slot 404 is rotated to match the material. At this time, the lifting mechanism 2 rises, and the material can be lifted from the placement position 101 through the T-shaped opening slot 404.

[0036] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. 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 variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A rotary lifting mechanism, characterized in that, It includes a frame body (1) and a lifting mechanism (2), a rotating mechanism (3), and a pulling mechanism (4) installed on the frame body (1), wherein, The frame body (1) is provided with a placement position (101) for placing materials. The lifting mechanism (2) serves as the actuator for material lifting actions, providing lifting action for the lifting mechanism (4) and the material. The rotating mechanism (3) serves as the actuator for the material rotation action, providing the rotation action for the lifting mechanism (4). The lifting mechanism (4) is used to clamp the material located at the placement position (101).

2. The rotary lifting mechanism according to claim 1, characterized in that, The lifting mechanism (4) includes a mounting shaft (401), a first clamping arm (402) and a second clamping arm (403). The first clamping arm (402) and the second clamping arm (403) are both fixed on the mounting shaft (401), and the first clamping arm (402) and the second clamping arm (403) are both used to clamp the material located in the placement position (101).

3. The rotary lifting mechanism according to claim 2, characterized in that, The lifting mechanism (2) includes a plurality of lifting cylinders (201) connected in series, wherein, The uppermost lifting cylinder (201) is fixed to the frame body (1), and guide components (202) are provided between the other lifting cylinders (201) and the frame body (1) to limit the circumferential rotation of the lifting cylinders (201). The piston rod of the lowermost lifting cylinder (201) is fixedly connected to the mounting shaft (401).

4. A rotary lifting mechanism according to claim 3, characterized in that, The rotating mechanism (3) includes a drive motor (301), a drive gear (302), a driven gear (303), and a rotating sleeve (304), wherein, The drive motor (301) is fixed to the frame body (1), and its output shaft is connected to the drive gear (302). The driven gear (303) is fixedly sleeved on the outside of the rotating sleeve (304), and the driven gear (303) meshes with the drive gear (302). The rotating sleeve (304) is sleeved outside the mounting shaft (401), and the mounting shaft (401) and the rotating sleeve (304) can move relative to each other in the axial direction but cannot rotate relative to each other in the circumferential direction.

5. A rotary lifting mechanism according to claim 2, characterized in that, The first clamping arm (402) and the second clamping arm (403) are each provided with a T-shaped opening groove (404) adapted to the material, and the distance between the two T-shaped opening grooves (404) and the axis of the mounting shaft (401) is different.

6. A rotary lifting mechanism according to claim 5, characterized in that, The lifting mechanism (4) further includes a first mounting plate (405) and a second mounting plate (406). The first mounting plate (405) and the second mounting plate (406) are sleeved on the outside of the mounting shaft (401) and fixedly connected. The first clamping arm (402) and the second clamping arm (403) are both installed between the first mounting plate (405) and the second mounting plate (406). The first mounting plate (405), the first clamping arm (402) and the second mounting plate (406) are fixedly connected. The first mounting plate (405), the second clamping arm (403) and the second mounting plate (406) are fixedly connected.

7. A rotary lifting mechanism according to claim 6, characterized in that, The mounting shaft (401) is provided with a positioning section (407) with a rectangular cross-section. The first mounting plate (405) and the second mounting plate (406) are arranged around the positioning section (407), and the first mounting plate (405) and the second mounting plate (406) are both provided with positioning grooves (408) that cooperate with the positioning end.

8. A rotary lifting mechanism according to claim 4, characterized in that, The main frame (1) includes a base (102), a middle frame (103), and a top frame (104), wherein, The intermediate frame (103) is composed of several first support rods (1031) and an intermediate mounting plate (1032). The top and bottom ends of the several first support rods (1031) are respectively connected to the intermediate mounting plate (1032) and the base (102). The top frame (104) consists of several second support rods (1041) and a top mounting plate (1042), with the top and bottom ends of the several second support rods (1041) connected to the top mounting plate (1042) and the middle mounting plate (1032) respectively.

9. A rotary lifting mechanism according to claim 8, characterized in that, The lifting mechanism (2) is located inside the top frame (104), and the uppermost lifting cylinder (201) is fixedly installed at the bottom of the top mounting plate (1042).

10. A rotary lifting mechanism according to claim 8, characterized in that, The rotating mechanism (3) is located at the intermediate frame (103), wherein, The drive motor (301) is located on the upper surface of the intermediate mounting plate (1032), and its output shaft passes through the intermediate mounting plate (1032) and is connected to the drive gear (302). The rotating sleeve (304) passes through the intermediate mounting plate (1032), and the rotating sleeve (304) and the intermediate mounting plate (1032) are rotatably connected.

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