Connecting rod type turnover device

Abstract

The utility model discloses a connecting rod type turnover device which comprises a machine frame, a turnover platform, a connecting rod mechanism and a telescopic driving cylinder, wherein the machine frame plays a role in installing and supporting, and the turnover platform is used for installing and supporting a workpiece. The overturning platform is supported on the rack, and one side of the overturning platform is hinged to the rack through a first hinge point. The two ends of the connecting rod mechanism are hinged to the overturning platform and the rack respectively. The two ends of the telescopic driving cylinder are hinged to the connecting rod mechanism and the rack correspondingly so as to drive the connecting rod mechanism to act in the extending process of the telescopic driving cylinder, and then the connecting rod mechanism drives the overturning platform to rotate around the first hinge point to overturn by 90 degrees. According to the connecting rod type turnover device, through the mode of the telescopic driving cylinder and the connecting rod mechanism, the action stroke of the telescopic driving cylinder is amplified through movement of the connecting rod mechanism, and therefore large-stroke turnover of the turnover platform can be achieved through the telescopic driving cylinder with the small telescopic stroke, and cost is effectively reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to material conveying and workpiece displacement device technical field, in particular, relate to a connecting rod type turnover device. BACKGROUND

[0002] In production, there are inevitably situations that need to turn over materials and install workpieces by displacement. At present, the commonly used methods are, for example, a 90-degree self-turnover machine disclosed by patent CN 216005140 U, which uses a motor, a gear and a chain as a power transmission mechanism to rotate a horizontal platform by 90 degrees around one side to realize 90-degree turnover of workpieces on the platform; for oil cylinder (air cylinder) as power to rotate the platform (workpiece), for example, a labor-saving 90-degree turnover mechanism disclosed by patent CN 216335036 U and a 90-degree hydraulic turnover device disclosed by patent CN 217230173 U, which use an oil cylinder (air cylinder) as power to push a horizontal platform to rotate by 90 degrees around one side to realize 90-degree turnover of workpieces on the platform.

[0003] As for the function of turning over materials (workpieces) by 90 degrees, the above-mentioned patent disclosed devices (mechanisms) have the following shortcomings:

[0004] 1. After the turnover platform is turned over, the materials (or workpieces) above it have no effective support and directly slide onto the platform perpendicular to it, for example, the 90-degree self-turnover machine disclosed by patent CN 216005140 U, which is mainly suitable for small production lines;

[0005] 2. For turnover mechanisms with a fixed device for materials (workpieces), the center of gravity of the materials (workpieces) and the driving action point are respectively on both sides of the rotating hinge point before and after the platform is turned over by 90 degrees, so that the power element provides a push force and then a pull force during the turnover process, which is not conducive to the stress of the power element itself, for example, the devices disclosed by patents CN 216335036 U and CN 217230173 U;

[0006] 3. For oil cylinder (air cylinder, etc.) direct drive turnover mechanisms, the oil cylinder stroke is generally large, the cost is relatively high, and there is no other effective locking protection structure for the driving device (oil cylinder, etc.) after the platform is turned over, for example, the device disclosed by patent CN 217230173 U. INVENTION CONTENTS

[0007] The utility model provides a connecting rod type turnover device to solve the technical problem that the oil cylinder or air cylinder direct drive turnover mechanism has a generally large oil cylinder stroke and a relatively high cost.

[0008] The technical scheme adopted by the utility model is as follows:

[0009] A connecting rod type turning device comprises: a frame for mounting and supporting, a turning platform for mounting and supporting a workpiece, a connecting rod mechanism and a telescopic drive cylinder; the turning platform is supported on the frame, and one side of the turning platform is hingedly connected to the frame via a first hinge point; the two ends of the connecting rod mechanism are respectively hingedly connected to the turning platform and the frame; the two ends of the telescopic drive cylinder are respectively hingedly connected to the connecting rod mechanism and the frame, so that the connecting rod mechanism is driven to move during the extension of the telescopic drive cylinder, and the connecting rod mechanism then drives the turning platform to rotate around the first hinge point to turn 90 degrees.

[0010] Furthermore, the flip platform includes a horizontal plate and a vertical plate that intersect vertically, the upper end of the vertical plate is hinged to the frame through a first hinge point, and the horizontal plate is horizontally supported on the frame; the connecting rod mechanism and the telescopic drive cylinder are both arranged below the horizontal plate, and one end of the connecting rod mechanism is hingedly connected to the lower surface of the horizontal plate.

[0011] Furthermore, the connecting rod mechanism includes a first connecting rod and a second connecting rod, the first end of the first connecting rod is hingedly connected to the lower surface of the horizontal plate to form a second hinge point, the second end of the first connecting rod is hingedly connected to the first end of the second connecting rod to form a third hinge point, and the second end of the second connecting rod is hingedly connected to the frame to form a fourth hinge point; the cylinder end of the telescopic drive cylinder is hingedly connected to the frame, and the telescopic rod end of the telescopic drive cylinder is hingedly connected to the middle part of the second connecting rod to form a fifth hinge point.

[0012] Furthermore, the length of the second connecting rod is greater than that of the first connecting rod; the second connecting rod includes a first section rod and a second section rod with opposite bending directions, the free end of the first section rod is hingedly connected to the second end of the first connecting rod to form a third hinge, and the free end of the second section rod is hingedly connected to the frame to form a fourth hinge; the telescopic rod end of the telescopic drive cylinder is hingedly connected to the convex part where the first section rod and the second section rod are connected to form a fifth hinge, so that the lines connecting the third hinge, the fourth hinge and the fifth hinge form a triangle.

[0013] Furthermore, when the telescopic drive cylinder is extended to the maximum stroke, the turning platform turns upward 90° counterclockwise around the first hinge point.

[0014] Furthermore, when the flip platform flips upward 90° counterclockwise around the first hinge point, the second hinge point, the third hinge point and the fourth hinge point are collinear so that the connecting rod mechanism is self-locking.

[0015] Furthermore, the frame includes a hollow frame body formed by welding steel pipes, the top of the frame body forms a support platform for supporting the flip platform, and the frame body also has two steel pipe columns vertically spaced apart; the horizontal plate of the flip platform is supported on the support platform, and the vertical plate of the flip platform is hingedly connected to the two steel pipe columns to form a first hinge point.

[0016] Furthermore, the frame also includes a buffer pad fixed to the support platform by fasteners.

[0017] Furthermore, the frame also includes a first connecting ear seat provided at the top ends of the two steel pipe columns, and a second connecting ear seat and a third connecting ear seat located in the inner frame of the frame body and arranged in sequence up and down; the flip platform also includes a fourth connecting ear seat connected to the back facade of the vertical plate, and a fifth connecting ear seat connected to the lower surface of the horizontal plate; the first connecting ear seat and the fourth connecting ear seat are connected to the first hinge point by a swivel pin; the second connecting ear seat and the second end of the second connecting rod are connected to form a fourth hinge point by a swivel pin; the third connecting ear seat is hingedly connected to the cylinder end of the telescopic drive cylinder by a swivel pin; the fifth connecting ear seat and the first end of the first connecting rod are connected to form a second hinge point by a swivel pin;

[0018] Furthermore, a workpiece fixing device for fixing the workpiece is also provided on the horizontal plate of the turning platform.

[0019] The utility model has the following beneficial effects:

[0020] In the connecting rod type flipping device of the present invention, a telescopic drive cylinder + connecting rod mechanism is used, in which the movement of the connecting rod mechanism amplifies the action stroke of the telescopic drive cylinder. Therefore, a telescopic drive cylinder with a small telescopic stroke can be used to achieve a large-stroke flipping of the flipping platform, thereby effectively reducing costs.

[0021] In addition to the above-described purposes, features and advantages, the present invention has other purposes, features and advantages. The present invention will be further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings, which constitute part of this application, are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0023] Figure 1 This is a schematic diagram of the spatial structure of a connecting rod type turning device according to a preferred embodiment of the present utility model;

[0024] Figure 2 yes Figure 1 Schematic diagram of the spatial structure of the middle rack;

[0025] Figure 3 yes Figure 1 Schematic diagram of the spatial structure of the flip platform;

[0026] Figure 4 yes Figure 1 Schematic diagram of the horizontal state of the workpiece;

[0027] Figure 5 yes Figure 1 Schematic diagram of the vertical state of the workpiece.

[0028] Legend:

[0029] 1, frame; 11, first connecting lug; 12, second connecting lug; 13, third connecting lug; 14, buffer pad; 2, turnover platform; 21, fourth connecting lug; 22, fifth connecting lug; 23, workpiece fixing device; 24, horizontal plate; 25, vertical plate; 3, connecting rod mechanism; 31, first connecting rod; 32, second connecting rod; 4, telescopic drive cylinder; 5, rotary pin; 61, first hinge point; 62, second hinge point; 63, third hinge point; 64, fourth hinge point; 65, fifth hinge point. DETAILED DESCRIPTION

[0030] The embodiments of the utility model are described in detail below in combination with the drawings, but the utility model can be implemented in multiple different ways limited and covered by the following.

[0031] Reference Figure 1 The preferred embodiment of the utility model provides a connecting rod type turnover device, include: the frame 1 of installation support function, be used to install the turnover platform 2 of support workpiece, connecting rod mechanism 3 and telescopic drive cylinder 4. Turnover platform 2 is supported on frame 1, and its one side is hinged connection through first hinge point 61 with frame 1. The both ends of connecting rod mechanism 3 are hinged connection turnover platform 2 and frame 1 respectively. The both ends of telescopic drive cylinder 4 are hinged connection connecting rod mechanism 3 and frame 1 respectively, to drive connecting rod mechanism 3 to act in telescopic drive cylinder 4 extension process, and then make connecting rod mechanism 3 drive turnover platform 2 rotate around first hinge point 61 to overturn 90 °.

[0032] The connecting rod type turnover device of the utility model works, frame 1 is stationary state, telescopic drive cylinder 4 is started and is elongated outward, and then push connecting rod mechanism 3 rotates around the hinge point of hinged connection with frame 1, simultaneously connecting rod mechanism 3 also acts deformation, and then make connecting rod mechanism 3 push turnover platform 2 rotates around first hinge point 61 of the hinge connection of turnover platform 2 and frame 1, telescopic drive cylinder 4 continuously pushes out, and turnover platform 2 rotates continuously, until turnover platform 2 overturns 90 degrees, and then the workpiece fixed on turnover platform 2 also overturns 90 degrees.

[0033] In the connecting rod type turnover device of the utility model, through telescopic drive cylinder 4+connecting rod mechanism 3 mode, wherein the movement of connecting rod mechanism 3, the stroke of telescopic drive cylinder 4 is amplified, so that the small telescopic stroke telescopic drive cylinder 4 can realize the overturning of large stroke turnover platform 2, thereby effectively reducing the cost.

[0034] Optionally, as Figure 1 and Figure 3As shown, the overturning platform 2 comprises a horizontal plate 24 and a vertical plate 25 which are perpendicular to each other, the upper end of the vertical plate 25 is hinged to the rack 1 through a first hinge point 61, and the horizontal plate 24 is horizontally supported on the rack 1. The linkage mechanism 3 and the telescopic drive cylinder 4 are arranged below the horizontal plate 24, and one end of the linkage mechanism 3 is hingedly connected to the lower surface of the horizontal plate 24. In this alternative, the overturning platform 2 comprises a horizontal plate 24 and a vertical plate 25 which are perpendicular to each other, so that the overturning platform 2 forms an L-shaped design, and the rotating hinge point, i.e. the first hinge point 61, is designed at the upper part of the vertical side of the L shape, and the workpiece is placed on the horizontal side of the L shape, so as to lower the center of gravity of the workpiece below the rotating hinge point, so that the center of gravity of the workpiece to be overturned and the driving force point are always located on the same side of the rotating hinge point during the overturning process, as shown in Figures 4-5 As shown, so that the telescopic drive cylinder 4 is always under pressure during the overturning process, and the telescopic drive cylinder 4 only provides a pushing force throughout the process, so that the overturning platform 2 overturns smoothly, and the control system of the telescopic drive cylinder 4 is simple; in addition, after the overturning platform 2 is overturned, its height is raised, as shown in Figures 4-5 As shown, so it is suitable for occasions where the material (workpiece) needs to be raised.

[0035] Alternatively, as shown in Figure 1 The linkage mechanism 3 comprises a first linkage 31 and a second linkage 32, the first end of the first linkage 31 is hingedly connected to the lower surface of the horizontal plate 24 to form a second hinge point 62, the second end of the first linkage 31 is hingedly connected to the first end of the second linkage 32 to form a third hinge point 63, and the second end of the second linkage 32 is hingedly connected to the rack 1 to form a fourth hinge point 64. The cylinder end of the telescopic drive cylinder 4 is hingedly connected to the rack 1, and the telescopic rod end of the telescopic drive cylinder 4 is hingedly connected to the middle part of the second linkage 32 to form a fifth hinge point 65. In this alternative, the linkage mechanism 3 is simple in structure, reliable in operation, easy to manufacture, and economical.

[0036] Preferably, as shown in Figure 5 The length of the second linkage 32 is greater than the length of the first linkage 31, which facilitates the action and function of the linkage mechanism 3. The second linkage 32 comprises a first segment and a second segment which are opposite in bending direction, the free end of the first segment is hingedly connected to the second end of the first linkage 31 to form the third hinge point 63, and the free end of the second segment is hingedly connected to the rack 1 to form the fourth hinge point 64. The telescopic rod end of the telescopic drive cylinder 4 is hingedly connected to the outer convex part connected with the first segment and the second segment to form the fifth hinge point 65, so that the third hinge point 63, the fourth hinge point 64 and the fifth hinge point 65 are connected in a triangle, which is stable in performance, thereby facilitating the linkage mechanism 3 to stably and reliably support the overturning platform 2.

[0037] Preferably, as shown in Figure 5As shown, when the telescopic drive cylinder 4 is extended to its maximum stroke, the tilting platform 2 tilts upward 90° counterclockwise about the first hinge point 61. In the present invention, the designed connecting rod mechanism 3 tilts the tilting platform 2 to the designed position when the telescopic cylinder reaches its maximum stroke. The workpiece being tilted is simultaneously raised to a certain height while being tilted 90°, thereby improving the accuracy of the tilting angle of the tilting platform 2 and facilitating the drive and control of the telescopic drive cylinder 4.

[0038] Further, if Figure 5 As shown, when the tilting platform 2 rotates upward counterclockwise 90° about the first hinge 61, the second hinge 62, the third hinge 63, and the fourth hinge 64 are collinear, causing the linkage mechanism 3 to self-lock. When the telescopic cylinder reaches its maximum stroke, the tilting platform 2 flips to the designed position, and the workpiece being flipped is simultaneously raised to a certain height while being flipped 90°. At the final position, the three hinges formed by the first link 31, the second link 32, the tilting platform 2, and the frame 1—the second, third, and fourth hinges—are collinear, forming a self-locking mechanism to resist load changes that may occur in this state and maintain structural stability.

[0039] Alternatively, as Figure 2 and 3 As shown, the frame 1 includes a hollow frame body formed by welding steel pipes. The top of the frame body forms a support platform for supporting the tilting platform 2. The frame body also has two vertically spaced steel pipe columns. The horizontal plate 24 of the tilting platform 2 is supported on the support platform, and the vertical plate 25 of the tilting platform 2 is hingedly connected to the two steel pipe columns to form a first hinge point 61.

[0040] Preferably, if Figure 2 As shown, the frame 1 further includes a buffer pad 14 fixed to the support platform by fasteners, for supporting and protecting the workpiece.

[0041] Alternatively, as Figure 2 and Figure 3As shown, the rack 1 further comprises a first connecting lug 11 arranged at the top of the two steel pipe columns, and a second connecting lug 12 and a third connecting lug 13 arranged in the inner frame of the rack body in sequence from top to bottom. The turnover platform 2 further comprises a fourth connecting lug 21 connected to the back surface of the vertical plate 25, and a fifth connecting lug 22 connected to the lower surface of the horizontal plate 24. The first connecting lug 11 and the fourth connecting lug 21 are connected by a rotary pin 5 to form a first hinge point 61. The second connecting lug 12 and the second end of the second connecting rod 32 are connected by a rotary pin 5 to form a fourth hinge point 64. The third connecting lug 13 and the cylinder end of the telescopic driving cylinder 4 are connected by a rotary pin 5. The fifth connecting lug 22 and the first end of the first connecting rod 31 are connected by a rotary pin 5 to form a second hinge point 62. In this optional solution, the rack 1 and the turnover platform 2 are simple in structure and easy to manufacture, and have low manufacturing cost.

[0042] Preferably, as Figure 3 As shown, the horizontal plate 24 of the turnover platform 2 is further provided with a workpiece fixing device 23 for fixing the workpiece, so as to facilitate the fixation of the workpiece, prevent the workpiece from loosening or falling off after the turnover platform 2 is turned over, and further affect the machining or transfer.

[0043] The above only describes the preferred embodiments of the present application and is not used to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A connecting rod type turning device, characterized in that: include: A frame (1) for mounting and supporting a workpiece, a turning platform (2) for mounting and supporting a workpiece, a connecting rod mechanism (3) and a telescopic drive cylinder (4); The turning platform (2) is supported on the frame (1), and one side thereof is hingedly connected to the frame (1) via a first hinge point (61); The two ends of the connecting rod mechanism (3) are respectively hingedly connected to the flip platform (2) and the frame (1); The two ends of the telescopic drive cylinder (4) are respectively hingedly connected to the connecting rod mechanism (3) and the frame (1), so as to drive the connecting rod mechanism (3) to move during the extension of the telescopic drive cylinder (4), thereby causing the connecting rod mechanism (3) to drive the turning platform (2) to rotate around the first hinge point (61) to turn 90 degrees.

2. The connecting rod type turning device according to claim 1, characterized in that: The turning platform (2) includes a horizontal plate (24) and a vertical plate (25) that intersect vertically. The upper end of the vertical plate (25) is hinged to the frame (1) through a first hinge point (61). The horizontal plate (24) is horizontally supported on the frame (1). The connecting rod mechanism (3) and the telescopic driving cylinder (4) are both arranged below the horizontal plate (24), and one end of the connecting rod mechanism (3) is hingedly connected to the lower surface of the horizontal plate (24).

3. The connecting rod type turning device according to claim 2, characterized in that: The connecting rod mechanism (3) includes a first connecting rod (31) and a second connecting rod (32), wherein the first end of the first connecting rod (31) is hingedly connected to the lower surface of the horizontal plate (24) to form a second hinge point (62), the second end of the first connecting rod (31) is hingedly connected to the first end of the second connecting rod (32) to form a third hinge point (63), and the second end of the second connecting rod (32) is hingedly connected to the frame (1) to form a fourth hinge point (64); The cylinder barrel end of the telescopic drive cylinder (4) is hinged to the frame (1), and the telescopic rod end of the telescopic drive cylinder (4) is hinged to the middle of the second connecting rod (32) to form a fifth hinge point (65).

4. The connecting rod type turning device according to claim 3, characterized in that: The length of the second connecting rod (32) is greater than the length of the first connecting rod (31); The second connecting rod (32) includes a first section rod and a second section rod with opposite bending directions, the free end of the first section rod is hingedly connected to the second end of the first connecting rod (31) to form a third hinge point (63), and the free end of the second section rod is hingedly connected to the frame (1) to form a fourth hinge point (64); The telescopic rod end of the telescopic drive cylinder (4) is hingedly connected to the outer convex portion where the first section rod and the second section rod are connected to form a fifth hinge point (65), so that the lines connecting the third hinge point (63), the fourth hinge point (64) and the fifth hinge point (65) form a triangle.

5. The connecting rod type turning device according to claim 4, characterized in that: When the telescopic driving cylinder (4) is extended to the maximum stroke, the turning platform (2) turns upward 90 degrees counterclockwise around the first hinge point (61).

6. The connecting rod type turning device according to claim 5, characterized in that: When the turning platform (2) turns upward 90° counterclockwise around the first hinge point (61), the second hinge point (62), the third hinge point (63) and the fourth hinge point (64) are collinear so that the connecting rod mechanism (3) is self-locking.

7. The connecting rod type turning device according to claim 4, characterized in that: The frame (1) comprises a hollow frame body formed by welding steel pipes, the top end of the frame body forming a support platform for supporting the turning platform (2), and the frame body also has two steel pipe columns vertically spaced apart; The horizontal plate (24) of the turnover platform (2) is supported on the supporting platform, and the vertical plate (25) of the turnover platform (2) is hingedly connected to two steel pipe columns to form a first hinge point (61).

8. The connecting rod type turning device according to claim 7, characterized in that: The frame (1) also includes a buffer pad (14) fixed to the support platform by fasteners.

9. The connecting rod type turning device according to claim 7, characterized in that: The frame (1) further comprises a first connecting ear seat (11) arranged at the top ends of the two steel pipe columns, and a second connecting ear seat (12) and a third connecting ear seat (13) located in the inner frame of the frame body and arranged in sequence up and down. The turning platform (2) further comprises a fourth connecting ear seat (21) connected to the rear surface of the vertical plate (25), and a fifth connecting ear seat (22) connected to the lower surface of the horizontal plate (24); The first connecting ear seat (11) and the fourth connecting ear seat (21) are connected via a swivel pin (5) to form a first hinge point (61); The second connecting ear seat (12) and the second end of the second connecting rod (32) are connected via a swivel pin (5) to form a fourth hinge point (64); The third connecting ear seat (13) is hingedly connected to the cylinder end of the telescopic driving cylinder (4) via a swivel pin (5); The fifth connecting ear seat (22) is connected to the first end of the first connecting rod (31) via a swivel pin (5) to form a second hinge point (62); 10. The connecting rod type turning device according to claim 1, characterized in that: A workpiece fixing device (23) for fixing the workpiece is also provided on the horizontal plate (24) of the turning platform (2).

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