Turnover device and transport line

Abstract

The utility model provides a turnover device and a transport line, the turnover device comprises a turnover driving unit, a rotating shaft and a clamping mechanism, the clamping mechanism comprises a clamping component, the driving unit drives the rotating shaft to rotate around a first axis, the clamping mechanism is coaxially and rotatably connected with the rotating shaft, and the clamping component is located at the circumferential position of the rotating shaft; the clamping mechanism further comprises a main body, the main body and the rotating shaft coaxially rotate, the clamping component is rotatably connected to the main body around a second axis, the clamping component comprises two clamping parts oppositely arranged in the axial direction of the second axis, and the second axis is perpendicular to the first axis; the clamping mechanism further comprises a clamping driving unit, and the clamping driving unit drives the clamping component to rotate around the second axis between a clamping position far away from the first axis and a separating position close to the first axis. The conveying line comprises a turnover device. The utility model solves the problem of unclamping failure of a workpiece, and ensures the smooth proceeding of subsequent processing procedures.

Description

TECHNICAL FIELD

[0001] The utility model relates to automatic equipment technical field, concretely relates to a turnover device and transport line. BACKGROUND

[0002] The workpiece is turned over by the turnover device on the automatic transport line.

[0003] The existing turnover device includes a main cylinder, a rack, a gear, a rotating shaft and a clamping cylinder, the rack is connected to the end of the piston rod of the main cylinder and is consistent with the extension direction of the end of the piston rod, the gear rotates coaxially with the rotating shaft around a fixed axis, and the two ends of the rotating shaft are respectively provided with a clamping cylinder. The extension direction of the clamping cylinder is perpendicular to the rotating shaft, the clamping part of the clamping cylinder is located at the circumferential position of the rotating shaft, and the opening and closing direction of the clamping part is perpendicular to the rotating shaft. When the main cylinder works, the rack is engaged with the gear to drive the rotating shaft to rotate, and then the clamping cylinder is driven to swing 180 degrees, so that the workpiece is turned over and transported from the first position to the second position.

[0004] The existing turnover device has the problem that after the clamping cylinder drives the workpiece to reach the second position, the clamping part is loosened up and down, and the workpiece is still supported on or even hung on the clamping jaw below the workpiece, which generates resistance to the forward movement of the workpiece. In one case, the workpiece can be taken out by using a taking mechanism with a large clamping force, but the above-mentioned resistance may cause damage to the workpiece during the taking process; in another case, the forward force of the downstream transport belt is insufficient to drive the workpiece to separate from the second position, which affects the subsequent processing. UTILITY MODEL CONTENTS

[0005] The first purpose of the utility model is to provide a turnover device for solving the problem of workpiece demolding failure and ensuring the smooth progress of subsequent processing procedures.

[0006] The second purpose of the utility model is to provide a transport line for ensuring the smooth demolding of the workpiece after turning over and ensuring the smooth progress of subsequent processing.

[0007] The turnover device provided by the first purpose of the utility model comprises a turnover driving unit, a rotating shaft and a clamping mechanism, the clamping mechanism comprises a clamping member, the driving unit drives the rotating shaft to rotate around a first axis, the clamping mechanism is coaxially connected with the rotating shaft and the clamping member is located at the circumferential position of the rotating shaft; the clamping mechanism further comprises a main body, the main body is coaxially connected with the rotating shaft, and the clamping member is rotatably connected to the main body around a second axis, the clamping member comprises two clamping parts which are oppositely arranged along the axial direction of the second axis, and the second axis is perpendicular to the first axis; the clamping mechanism further comprises a clamping driving unit, and the clamping driving unit drives the clamping member to rotate around the second axis between a clamping position far away from the first axis and a demolding position close to the first axis.

[0008] From the above scheme, compared with the background technology, the clamping mechanism of the utility model can swing around the second axis, after the workpiece is in place, the clamping member swings around the second axis from the initial position, two clamping parts swing to the upper and lower sides of the workpiece respectively, and the two clamping parts grab the workpiece when swinging to the target, after the clamping mechanism swings 180 to complete the workpiece overturning action, the two clamping parts swing back to the initial position, and can completely separate from the workpiece along the horizontal direction, the workpiece is completely unclamped, the subsequent operation on the workpiece is ensured not to be hindered, and the subsequent processing is ensured to proceed smoothly.

[0009] Further scheme is that the clamping member includes a first arm and a second arm, the first arm and the second arm are respectively arranged on opposite sides of the second axis, and the clamping part is arranged on the second arm; the clamping driving unit is a linear driving unit, and the clamping mechanism further includes a connecting rod, an output end of the clamping driving unit is hinged to one end of the connecting rod at a third axis, and the connecting rod is hinged to a fourth axis at an extension end of the first arm.

[0010] Still further scheme is that the linear driving direction of the linear driving unit is the axial direction of the first axis; the first arm and the second arm are bent and connected, and the distance between the second axis and the first axis is greater than the distance between the output end of the linear driving unit and the first axis.

[0011] From the above, under this setting, the linear driving unit such as a pneumatic cylinder can drive the clamping member to swing around the second axis, the structure is simple, and the cost is reduced. Further, only the first arm and the second arm need to be slightly bent, the linear driving unit can be arranged along the axial direction of the first axis, the components of the clamping mechanism are more reasonable and compact, and the design difficulty is reduced.

[0012] Still further scheme is that the clamping mechanism includes at least two clamping members; the first arm of each clamping member is hinged to the same connecting rod.

[0013] From the above, the connecting rod is used as an intermediate transmission part, the same linear driving unit is used as a power source, and all the clamping members are swung by the connecting rod. The power source investment is reduced, and the device cost is reduced.

[0014] Still further scheme is that the rotation angle from the clamping position to the separation position is 90 degrees; a clamping area of the clamping member is formed between the two clamping parts; when the clamping member is in the clamping position, the entering direction of the clamping area is parallel to the radial direction of the first axis; and when the clamping member is in the separation position, the entering direction of the clamping area is parallel to the axial direction of the first axis.

[0015] As can be seen from the above, the rotation angle from the clamping position to the disengaging position is 90 degrees, and when the clamping member is in the clamping position, the entering direction of the clamping area is parallel to the radial direction of the first axis, and when the clamping member is in the disengaging position, the entering direction of the clamping area is parallel to the axial direction of the first axis, which can better ensure that the two clamping parts in the clamping position accurately and completely reach the upper and lower sides of the workpiece, ensure the stability and reliability of clamping, and also ensure that the two clamping parts in the disengaging position are away from the workpiece, further avoiding affecting the workpiece.

[0016] In addition, a further scheme is that the main body comprises a box body; when the clamping member is in the clamping position, the clamping part protrudes out of the box body; and when the clamping member is in the disengaging position, the clamping part is accommodated in the box body.

[0017] As can be seen from the above, under this arrangement, the clamping part in the disengaging position can be further ensured to completely leave the workpiece.

[0018] In addition, a further scheme is that the clamping part is detachably mounted on the clamping member; and / or, the distance between the two clamping parts in the axial direction of the second axis is adjustable.

[0019] As can be seen from the above, under this arrangement, the distance between the two clamping parts of the clamping member can be changed, thereby adapting to different workpieces.

[0020] In addition, a further scheme is that the turnover driving unit is a servo motor.

[0021] As can be seen from the above, the motor rotation is adopted, and compared with the power of the cylinder + rack, the mechanism has more advantages in controlling the turnover speed and force.

[0022] The second purpose of the utility model provides a transport line comprising a turnover device, and the turnover device adopts the above-mentioned turnover device.

[0023] A further scheme is that the transport line comprises a first transport device, a lifting device and a second transport device, the first transport device, the turnover device and the second transport device are sequentially arranged along the transport direction of the transport line, the lifting device is arranged at the end of the first transport device, and the lifting device can be raised from a first height to a third height; the transport surface of the first transport device is arranged at a second height between the first height and the third height, and the lifting device and the turnover device are docked at the third height.

[0024] As can be seen from the above, one of the clamping parts of the clamping member needs to be yawed to below the workpiece, and therefore the lifting device can lift the workpiece from the first transport device to make the part to be clamped of the workpiece suspended, thereby eliminating the clamping obstruction; in addition, since the turnover device of the utility model can ensure that the workpiece is disengaged, the second transport device is used to take and transport the turned-over workpiece, and a taking robot is not needed, thereby reducing the cost of the transport line. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 This is a structural diagram of an embodiment of the transport line of the present utility model.

[0026] Figure 2 This is a schematic diagram of an embodiment of the transport line of the present utility model.

[0027] Figure 3 This is a structural diagram of the clamping mechanism of the transport line embodiment of the utility model, which hides the flipping drive unit and the deceleration mechanism.

[0028] Figure 4 This is a structural diagram of the box cover hidden by the clamping mechanism of the transport line embodiment of the utility model.

[0029] Figure 5 for Figure 4 Enlarged view of point A in the middle.

[0030] Figure 6 This is a structural diagram of the clamping mechanism in the transport line embodiment of the present utility model when the clamping member is in the clamping position.

[0031] Figure 7 This is a structural diagram of the clamping mechanism in the transport line embodiment of the present utility model when the clamping member is in a disengaged position.

[0032] Figure 8 It is a cross-sectional schematic diagram of the clamping mechanism in the embodiment of the transport line of the present utility model when the clamping member is in the clamping position.

[0033] Figure 9 It is a cross-sectional schematic diagram of the clamping mechanism in the embodiment of the transport line of the present invention when the clamping member is in the disengaged position.

[0034] Figure 10 This is a structural diagram of the lifting device in the transport line embodiment of the present utility model. DETAILED DESCRIPTION

[0035] Transport line embodiment and clamping device embodiment

[0036] See also Figure 1 and Figure 2 The transport line includes a first transport device 11, a second transport device 12, a tilting device 2, and a lifting device 3. The first transport device 11, the tilting device 2, and the second transport device 12 are arranged in sequence along the transport direction shown in the negative direction of the y-axis in the figure. The first transport device 11 and the second transport device 12 both use conveyor belts, and the conveyor belts' transport directions are both in the negative direction of the y-axis. The first transport device 11 and the second transport device 12 both include two conveyor belts spaced apart along the x-axis.

[0037] The lifting device 3 is arranged at the end of the first conveying device 11. Specifically, the lifting device 3 is arranged at the interval between the two conveying belts of the first conveying device 11. The lifting device 3 can be lifted from the first height 901 to the third height 903; the conveying surface of the first conveying device 11 is arranged at the second height 902 between the first height 901 and the third height 903, and the lifting device 3 and the turnover device 2 are docked at the third height 903.

[0038] When the workpiece 9 is conveyed by the first conveying device 11 to the end of the first conveying device 11, the lifting device 3 can lift the workpiece 9 in the process of being lifted from the first height 901 to the third height 903; then the turnover device 2 clamps the workpiece 9 and turns it over by 180 degrees to the second conveying device 12, and then the turnover device 2 is unclamped, and the workpiece 9 falls on the second conveying device 12.

[0039] Referring to Figure 10 , the lifting device 3 comprises a lifting cylinder 31, a lifting platform 32 and a pad 33. The lifting platform 32 is fixed at the end of the piston rod of the lifting cylinder 31, and the lifting platform 32 is arranged in an "H" shape to facilitate avoiding the turnover device 2. The pad 33 is fixed on the upper surface of the lifting platform 32, and the pad 33 is made of polyurethane.

[0040] Next, the turnover device 2 of the embodiment will be described in detail.

[0041] Referring to Figures 3 to 5 , the turnover device 2 comprises a turnover driving unit 221, a speed reduction mechanism 222, a rotating shaft 21 and a clamping mechanism 29. The turnover driving unit 221 is a servo motor, the output shaft of the turnover driving unit 221 extends along the y-axis direction in the drawing, the speed reduction mechanism 222 is a speed reduction gear set, the input end of the speed reduction mechanism 222 is connected with the output shaft of the servo motor of the turnover driving unit 221, and the output end of the speed reduction mechanism 222 is connected with one end of the rotating shaft 21. The other end of the rotating shaft 21 is fixed to the frame of the conveying line through a bearing seat, and the rotating shaft 21 extends along the x-axis direction and is arranged at the first axis 201.

[0042] The clamping mechanism 29 comprises a main body 290, which is a box body, and further comprises a clamping driving unit 25, a connecting rod 26 and two clamping members 28 arranged in the main body 290.

[0043] In the embodiment, the clamping driving unit 25 is a linear driving unit, and further, the linear driving unit is a cylinder. The cylinder body of the clamping driving unit 25 is fixed in the main body 290, and the output end of the clamping driving unit 25, i.e. the end of the piston rod of the cylinder, extends along the x-axis direction and is retractable, i.e. the linear driving direction of the linear driving unit is the axial direction of the first axis 201.

[0044] The clamping member 28 is rotatably connected to the main body 290 around the second axis 202, and comprises a first arm 271 and a second arm 272, the first arm 271 and the second arm 272 are bently connected, and the first arm 271 and the second arm 272 are arranged on opposite sides of the second axis 202 respectively, and the extension end of the second arm 272 is a clamping portion 281.

[0045] The extension end of the first arm 271, the connecting rod 26 and the output end of the clamping driving unit 25 are sequentially hinged, wherein the output end of the clamping driving unit 25 is hinged to one end of the connecting rod 26 around a third axis, the other end of the connecting rod 26 is hinged to the extension end of the first arm 271 around a fourth axis, and the third axis and the fourth axis are parallel to the second axis 202.

[0046] In the embodiment, the two clamping members 28 are arranged along the x-axis direction, and the first arms 271 of the two clamping members 28 are hinged to the same connecting rod 26, wherein the hinge points of the two first swing arms 271 and the connecting rod 26 are arranged along the x-axis direction.

[0047] Continuing to refer to Figure 3 and Figure 5 , the clamping member 28 comprises two clamping portions 281 arranged opposite along the axial direction of the second axis 202, and a clamping region 280 of the clamping member 28 for clamping the workpiece 9 is formed between the two clamping portions 281. Further, a gasket 282 is arranged on the inner side of the clamping portion 281 facing the clamping region 280, and the gasket 282 is made of polyurethane material.

[0048] Further, the two clamping portions 281 extend along a straight line direction from the same base portion, and the straight line direction is the extension direction of the clamping portion 281 and is also the entering direction of the clamping region 280 in the utility model.

[0049] Further, the two clamping portions 281 extend along a straight line direction from the same base portion, and the straight line direction is the extension direction of the clamping portion 281 and is also the entering direction of the clamping region 280 in the utility model. Figure 6 Figure 7 The clamping driving unit 25 can drive the clamping member 28 to rotate around the second axis 202 between a clamping position far away from the first axis 201 and a disengaging position close to the first axis 201, Figure 6 The clamping member 28 is located at the clamping position, Figure 9 The clamping member 28 is in the disengaging position. In the embodiment, the rotation angle from the clamping position to the disengaging position is 90 degrees, when the clamping member 28 is in the clamping position, the entering direction of the clamping region 280 is parallel to the radial direction of the first axis 201, and the entering direction of the clamping region 280 is the y-axis direction shown in the figure; when the clamping member 28 is in the disengaging position, the entering direction of the clamping region 280 is parallel to the axial direction of the first axis 201, that is, the entering direction of the clamping region 280 is the x-axis direction shown in the figure.

[0050] Continuing to refer to​Figure 6 and Figure 7 When the clamping member 28 is in the clamping position, the clamping portions 281 protrude out of the box body of the main body 290; when the clamping member 28 is in the disengaging position, the clamping portions 281 are entirely accommodated in the box body of the main body 290.

[0051] Referring to Figure 8 When the turning action is completed without clamping, the two clamping portions 281 are respectively located on the upper and lower sides of the workpiece 9; referring to Figure 9 However, after the clamping member 28 rotates 90 degrees around the second axis 202 and reaches the disengaging position in the box body, the two clamping portions 281 are turned back to the initial position, and the two clamping portions 281 are completely disengaged from the workpiece 9, which ensures that the workpiece is not hindered by the subsequent operation and ensures the smooth progress of the subsequent processing. Further, the clamping member 28 in the disengaging position is entirely located in the hidden state in the box body, which further ensures that the two clamping portions 281 in the disengaging position are away from the workpiece and further avoids affecting the workpiece.

[0052] In addition, the clamping portions 281 are detachably mounted on the clamping member 28 through threaded members; and / or, the distance between the two clamping portions 281 in the axial direction of the second axis 202 is adjustable, for example, the clamping portions 281 are mounted through elongated holes in the axial direction of the second axis 202. With this setting, the distance between the two clamping portions 281 of the clamping member 28 can be changed, so as to adapt to different workpieces.

[0053] In other embodiments, the clamping driving unit adopts a rotating driving unit, such as a motor, which coaxially drives or drives through a speed reduction assembly to rotate a clamping member around the second axis.

[0054] In other embodiments, only one clamping member is provided.

[0055] In other embodiments, the angle from the clamping position to the disengaging position is less than 90 degrees.

[0056] In other embodiments, the two clamping portions cannot be detached and replaced from the clamping member, and the distance between the two clamping portions in the axial direction of the second axis is also not adjustable.

[0057] In other embodiments, the conveying line does not include a lifting device, and the clamping member can be arranged opposite to the interval between the two conveying belts of the first conveying device. With this setting, the clamping portions can swing horizontally from the interval and reach below the workpiece to grasp. Finally, it should be emphasized that the above description is only 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 changes and modifications, and 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 turnover device, comprising a turnover driving unit, a rotating shaft and a clamping mechanism, the clamping mechanism comprising a clamping member, the driving unit driving the rotating shaft to rotate around a first axis, the clamping mechanism being coaxially connected with the rotating shaft and the clamping member being located at a circumferential position of the rotating shaft; characterized in that: the clamping mechanism further comprises a main body coaxially rotating with the rotating shaft, the clamping member being rotatably connected to the main body around a second axis, the clamping member comprising two clamping portions oppositely arranged along an axial direction of the second axis, the second axis being perpendicular to the first axis; the clamping mechanism further comprises a clamping driving unit, the clamping driving unit being capable of driving the clamping member to rotate around the second axis between a clamping position far away from the first axis and a disengaging position close to the first axis. 2.The turnover device according to claim 1, characterized in that: the clamping member comprises a first arm and a second arm, the first arm and the second arm being respectively arranged at opposite sides of the second axis, the clamping portions being arranged on the second arm; the clamping driving unit is a linear driving unit, the clamping mechanism further comprising a connecting rod, an output end of the clamping driving unit being hinged to one end of the connecting rod at a third axis, the connecting rod being hinged to an extended end of the first arm at a fourth axis. 3.The turnover device according to claim 2, characterized in that: a linear driving direction of the linear driving unit is an axial direction of the first axis; the first arm and the second arm are curvedly connected, a distance between the second axis and the first axis being greater than a distance between the output end of the linear driving unit and the first axis. 4.The turnover device according to claim 2, characterized in that: the clamping mechanism comprises at least two clamping members, the first arm of each clamping member being hinged to the same connecting rod. 5.The turnover device according to claim 1, characterized in that: a rotation angle between the clamping position and the disengaging position is 90 degrees; a clamping region of the clamping member is formed between the two clamping portions; when the clamping member is at the clamping position, an entering direction of the clamping region is parallel to a radial direction of the first axis; when the clamping member is at the disengaging position, the entering direction of the clamping region is parallel to an axial direction of the first axis. 6.The turnover device according to any one of claims 1 to 5, characterized in that: the main body comprises a box body; when the clamping member is at the clamping position, the clamping portions protrude out of the box body; when the clamping member is at the disengaging position, the clamping portions are accommodated in the box body. 7.The turnover device according to any one of claims 1 to 5, characterized in that: the clamping portions are detachably mounted on the clamping member; and / or, a distance between the two clamping portions in an axial direction of the second axis is adjustable. 8.The turnover device according to any one of claims 1 to 5, characterized in that: the turnover driving unit is a servo motor. 9.A conveying line, comprising a turnover device, characterized in that: The turnover device adopts the turnover device according to any one of claims 1 to 8.

10. The transport line according to claim 9, characterized in that: The transport line further comprises a first transport device, a lifting device and a second transport device, the first transport device, the turnover device and the second transport device are sequentially arranged along the transport direction of the transport line, the lifting device is arranged at the end of the first transport device, and the lifting device can be lifted from a first height to a third height; The transport surface of the first transport device is arranged at a second height between the first height and the third height, and the lifting device and the turnover device are docked at the third height.

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