Power assembly and conveying mechanism for conveying line

Abstract

The utility model relates to the field of automation, in particular to a power assembly and a conveying mechanism for a conveying line. The power assembly comprises a driving motor, a bearing seat and a supporting air cylinder. The driving motor comprises a body and a motor shaft, the motor shaft transversely extends from the interior of the body to the exterior of the body, the motor shaft controllably rotates relative to the body, and a mounting arm extending in the direction away from the motor shaft is arranged on the body. And the bearing seat is fixedly connected between the motor shaft and the truss. The supporting air cylinder is longitudinally arranged and provided with a first end and a second end opposite to the first end. The first end is rotationally connected to the truss, and the second end is rotationally connected to the end, away from the motor shaft, of the mounting arm. The conveying mechanism uses the power assembly as a power source. Installation and protection of the driving motor are achieved through a simple structure, the whole device is easy to adjust and calibrate, and the requirement for accurate movement of workpieces can be met.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of automation, especially relates to a power assembly and conveying mechanism for conveying line. BACKGROUND

[0002] With the development of automation technology, the machining and assembling of workpieces in an automated manner become the norm of factory production. The method of automatic machining usually includes controllably moving workpieces between stations by a conveying mechanism, and automatically processing the arrived workpieces by processing equipment corresponding to each station. In this method, the power assembly that drives the conveying mechanism to accurately transport workpieces plays an important role.

[0003] In the prior art, the power assembly usually adopts a motor. However, when a jam or other fault occurs in the conveying mechanism, the motor continues to operate, while the conveyor belt or carrier that drives the workpiece to move cannot continue to move, which will cause damage to the motor, resulting in a low fault tolerance of the conveying mechanism. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a power assembly and conveying mechanism for conveying line which is not easy to be damaged.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0006] A power assembly for conveying line, comprising:

[0007] A drive motor, comprising a body and a motor shaft, the motor shaft extends transversely from the inside of the body to the outside of the body, and the motor shaft is controllably rotatable relative to the body, and the body is provided with a mounting arm extending away from the motor shaft;

[0008] A bearing seat fixedly connected between the motor shaft and the truss;

[0009] A support cylinder longitudinally arranged and having a first end and a second end opposite to the first end, the first end being rotatably connected to the truss, and the second end being rotatably connected to one end of the mounting arm away from the motor shaft.

[0010] Optionally, the power assembly further comprises a sensor and a controller, the sensing position of the sensor corresponding to the initial position of the second end of the support cylinder, and the controller being electrically connected with the sensor and the drive motor.

[0011] Optionally, the power assembly further comprises an alarm, and the alarm is electrically connected with the controller.

[0012] Optionally, the power assembly further comprises an electromagnetic valve electrically connected with the controller, the electromagnetic valve has one inlet end and two outlet ends, the inlet end is communicated with a compressed air source, the two outlet ends are respectively communicated with the first inlet port and the second inlet port of the support cylinder, and the inlet end of the electromagnetic valve is controllably communicated with any of the outlet ends.

[0013] Optionally, the mounting arm is provided with a mounting through hole at the end away from the motor shaft, a transfer shaft is rotatably connected in the mounting through hole, and the second end of the support cylinder is rotatably connected to the transfer shaft.

[0014] Optionally, the driving motor is a speed reduction motor.

[0015] Optionally, the body is longitudinally arranged.

[0016] In the second aspect, the utility model also provides a conveying mechanism, comprising the above-mentioned power assembly, further comprising two oppositely arranged trusses, the motor shaft is supported on the two trusses through the two bearing seats, and the motor shaft is controllably rotatable, and the support cylinder is connected to any of the trusses.

[0017] Optionally, the conveying mechanism further comprises a moving seat and a blocking piece, the moving seat is used for carrying a constraint workpiece and is controllably movable with the rotation of the motor shaft, and the blocking piece is connected to the truss and is used for blocking the moving seat reaching a preset position.

[0018] According to the first aspect of the utility model, the motor shaft is supported on the truss through the bearing seat, the end of the mounting arm away from the motor shaft is supported on the truss through the support cylinder, so that the body is supported on the mounting arm and the motor shaft and is fixed relative to the truss. When the motor shaft of the driving motor cannot continue to rotate relative to the truss due to the jamming of an external mechanism, the body and the rotating shaft continue to rotate relative to each other, causing the body to rotate relative to the truss. At this time, the end of the mounting arm away from the motor shaft drives the second end of the support cylinder to approach or move away from the first end, the support cylinder is extended or compressed, and the body of the driving motor is continuously supported, thereby providing a buffering effect and preventing damage to the inside of the driving motor. The support cylinder not only provides a buffering space but also supports the driving motor, so that the installation and protection of the driving motor are realized at the same time with a simple structure.

[0019] Further, the sensor generates an electric signal when the mounting arm of the driving motor rotates and transmits the electric signal to the controller, which helps to stop the operation of the driving motor in time when the motor shaft is difficult to rotate relative to the truss, thereby reducing the risk of damage to the driving motor.

[0020] Further, by arranging the alarm, it is helpful to timely remind manual intervention to eliminate faults and prevent the rotation amplitude of the body from exceeding the buffering limit of the support cylinder.

[0021] Further, by controlling the air inlet and outlet of the support cylinder through the electromagnetic valve, the extension or compression degree of the support cylinder is restrained, which can prevent the body of the driving motor from rotating due to inertia and prevent damage of the driving motor, and can help the support cylinder to return to the initial state after extension or compression.

[0022] Further, by arranging the mounting through hole and the transfer shaft, the flexibility of the mounting arm and the support cylinder when rotating relative to each other is improved, so that the support cylinder can fully play a buffering role.

[0023] Further, the body of the driving motor is arranged longitudinally, which can improve the support force of the truss on the body and prevent the motor shaft from being bent under pressure.

[0024] According to the second aspect of the utility model, the power assembly in the utility model provides power for the conveying mechanism, which can improve the fault tolerance of the mechanism and reduce the risk of damage.

[0025] Further, the blocking member temporarily blocks the moving seat at any station, and the mutual constraint between the moving seat and the motor shaft causes the motor shaft to be unable to continue to rotate, so that the body rotates slightly. When the blocking member no longer blocks the moving seat, the moving seat continues to displace with the rotation of the motor shaft. This arrangement can improve the accurate displacement of the moving seat and has high practicability.

[0026] The above description is only a summary of the technical scheme of the utility model, in order to more clearly understand the technical means of the utility model, and the utility model can be implemented according to the content of the specification. The following describes the preferred embodiments of the utility model in detail with reference to the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 FIG. 1 is a structural schematic view of the power assembly shown in embodiment one of the utility model mounted on the truss;

[0028] Figure 2 FIG. 2 is a structural schematic view of the driving motor, bearing seat and support cylinder shown in embodiment one of the utility model.

[0029] Legend: 101-truss, 1-driving motor, 11-body, 111-mounting arm, 112-mounting through hole, 113-transfer shaft, 12-motor shaft, 2-bearing seat, 21-outer ring, 22-inner ring, 23-mounting hole, 3-support cylinder, 31-first end, 32-second end, 321-rotary ring, 33-first air inlet, 34-second air inlet, 4-sensor, 5-electromagnetic valve, 51-air inlet end, 52-air outlet end, 53-free end. DETAILED DESCRIPTION

[0030] The technical solutions of the present application will be described clearly and completely in connection with the drawings. Obviously, the described embodiments are some of the embodiments of the present application, but not all the embodiments. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0031] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0032] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0033] In addition, the technical features involved in the different embodiments of the present application described below can be combined with each other as long as there is no conflict.

[0034] Please see Figure 1 The power assembly for the transport line protected by the present application comprises a driving motor 1, a bearing seat 2 and a supporting cylinder 3. The driving motor 1 comprises a body 11 and a motor shaft 12, the motor shaft 12 extends transversely from the inside of the body 11 to the outside of the body 11, and the motor shaft 12 is controllably rotatable relative to the body 11, and the body 11 is provided with a mounting arm 111 extending away from the motor shaft 12. The bearing seat 2 is fixedly connected between the motor shaft 12 and the truss 101. The supporting cylinder 3 is longitudinally arranged and has a first end 31 and a second end 32 opposite to the first end 31. The first end 31 is rotatably connected to the truss 101, and the second end 32 is rotatably connected to one end of the mounting arm 111 away from the motor shaft 12.

[0035] The motor shaft 12 is supported on the truss 101 by the bearing seat 2, and the mounting arm 111 is supported on the truss 101 by the supporting cylinder 3, so that the body 11 is supported on the mounting arm 111 and the motor shaft 12, and fixed relative to the truss 101. When the motor shaft 12 of the driving motor 1 cannot continue to rotate relative to the truss 101 due to the jamming of an external mechanism, the body 11 and the rotating shaft continue to rotate relative to each other, causing the body 11 to rotate relative to the truss 101. At this time, the second end 32 of the supporting cylinder 3 is driven by the end of the mounting arm 111 away from the motor shaft 12 to approach or move away from the first end 31, and the supporting cylinder 3 is extended or compressed to continue to support the body 11 of the driving motor 1, thereby providing a buffering effect to prevent damage to the inside of the driving motor 1. The supporting cylinder 3 not only provides a buffering space, but also supports the driving motor 1, so that the installation and protection of the driving motor 1 are realized at the same time with a simple structure.

[0036] For details, please refer to the following examples.

[0037] Example 1

[0038] Please refer to Figure 1 The conveying mechanism shown in a preferred embodiment of the present application includes a power assembly, a truss 101, a moving seat, and a blocking piece. Two trusses 101 are vertically arranged and extend along a horizontal first direction. The power assembly is supported on the trusses 101 and includes a motor shaft 12 extending along a horizontal second direction, and the second direction is perpendicular to the first direction. The motor shaft 12 is supported between one end of the two trusses 101 and can be controlled to rotate relative to the two trusses 101. The moving seat is connected to the motor shaft 12 in cooperation and can be controlled to move along the first direction with the rotation of the motor shaft 12. The moving seat and the motor shaft 12 are constrained to each other and tightly cooperate, so that when the moving seat cannot move, the motor shaft 12 also cannot rotate. Since this connection structure is prior art, it will not be described in detail, for example, it can be connected by a chain wheel and chain. The blocking piece is a clamp fixedly connected to the truss 101, which clamps the moving seat when the moving seat reaches the position corresponding to the blocking piece, thereby preventing the moving seat from continuing to move along the first direction.

[0039] Please refer to Figure 1 and Figure 2 The power assembly includes a driving motor 1, a bearing seat 2, and a supporting cylinder 3, which are all supported on the truss 101.

[0040] The driving motor 1 is a reduction motor. The driving motor 1 includes a motor shaft 12 and a body 11, and the total mass of the driving motor 1 is small to reduce the support burden caused by the weight. The body 11 is vertically arranged, and the motor shaft 12 extends horizontally from a position close to the top of the shell to the outside of the body 11 and is controlled to rotate along the central axis relative to the body 11 under the action of the body 11. The body 11 includes a mounting arm 111. The mounting arm 111 extends from the body 11 in a direction perpendicular to the body 11 and away from the motor shaft 12, and a circular through hole is formed at an end of the mounting arm 111 away from the motor shaft 12. The edge of the through hole extends towards the two sides of the mounting arm 111 to form a circular annular mounting through hole 112, so that the thickness of the mounting through hole 112 is large.

[0041] The driving motor 1 is mounted on one truss 101 away from the other truss 101, and the motor shaft 12 is rotatably connected to the two trusses 101 through two bearing seats 2. The bearing seat 2 is a rhombic bearing seat 2 having a rhombic outer ring 21 and a circular inner ring 22 fitted in the middle of the outer ring 21. The inner ring 22 is rotatably connected to the outer ring 21, and the inner wall of the inner ring 22 is fixedly connected to the outer wall of the motor shaft 12. Two mounting holes 23 are arranged on the outer ring 21 and located on the two sides of the inner ring 22, and the outer ring 21 is fixedly connected to the side wall of the truss 101 through the mounting holes 23. The two bearing seats 2 and the two trusses 101 jointly support the motor shaft 12.

[0042] The support cylinder 3 is a double-acting cylinder, which is vertically arranged and has opposite first and second ends 31 and 32. In this embodiment, the height of the first end 31 of the support cylinder 3 is lower than that of the second end 32. The first end 31 of the support cylinder 3 is rotatably connected to the truss 101 close to the body 11 of the driving motor 1 and is free to rotate in a plane parallel to the truss 101. The second end 32 of the support cylinder 3 is rotatably connected to the mounting through hole 112 of the driving motor 1 through a transfer shaft 113. The cylindrical transfer shaft 113 is inserted into the inside of the mounting through hole 112 and is rotatably connected to the mounting through hole 112. The second end 32 of the support cylinder 3 is formed with a rotating ring 321 fitted on the outside of the transfer shaft 113 and rotatably connected to the outer wall of the transfer shaft 113. The outer wall of the support cylinder 3 is formed with a first air inlet 33 and a second air inlet 34 communicating between the inside and outside of the support cylinder 3, and the first air inlet 33 is arranged adjacent to the first end 31 and the second air inlet 34 is arranged adjacent to the second end 32 for the support cylinder 3 to intake and exhaust air, so that the support cylinder 3 can be controlled to extend.

[0043] The power assembly further comprises a sensor 4 and a controller. The sensor 4 is a photoelectric sensor 4 and is electrically connected with the controller. A mounting hole 112 is located between the photoelectric sensor 4 and the motor shaft 12, and the outer wall of the mounting hole 112 corresponds to the emitting end of the photoelectric sensor 4 when the support cylinder 3 is in the initial state. The sensor 4 senses the distance to the nearest obstacle and transmits an electrical signal to the controller. When the mounting arm 111 rotates, the distance information sensed by the sensor 4 changes, and the controller receives the information that the body 11 of the driving motor 1 rotates. The controller is electrically connected with the driving motor 1, and when the body 11 of the driving motor 1 rotates, the controller stops the driving motor 1 from working.

[0044] The power assembly further comprises an electromagnetic valve 5 electrically connected with the controller. The electromagnetic valve 5 is a two-position five-way valve, is fixedly connected to the truss 101, has one inlet end 51, two outlet ends 52 and two free ends 53, the inlet end 51 is communicated with the compressed air source and is controllably opened or closed. The two outlet ends 52 are respectively communicated with the first inlet port 33 and the second inlet port 34 of the support cylinder 3 through a hose (not shown), and the inlet end 51 of the electromagnetic valve 5 is controllably communicated with any outlet end 52, thereby controlling the extension and contraction of the support cylinder 3. In this embodiment, when the inlet end 51 of the electromagnetic valve 5 is opened and communicated with the outlet end 52 connected to the first inlet port 33, compressed air enters the first inlet port 33, the gas in the support cylinder 3 is discharged from the second inlet port 34 to the inside of the electromagnetic valve 5, and is discharged into the atmosphere through the corresponding free end 53, at this time, the cylinder is extended. When the inlet end 51 of the electromagnetic valve 5 is opened and communicated with the outlet end 52 connected to the second inlet port 34, the cylinder is compressed. When the inlet end 51 of the electromagnetic valve 5 is closed, the length of the cylinder does not change. In this embodiment, a silencer is installed on the free end 53, thereby reducing noise.

[0045] The power assembly further comprises an alarm. The alarm is an audible and visual alarm and is electrically connected with the controller.

[0046] When the mobile seat is clamped by the blocking piece, the motor shaft 12 cannot rotate, causing the body 11 to rotate relative to the truss 101, the installation through hole 112 to displace, the gas inlet end 51 of the electromagnetic valve 5 to be connected to the first gas inlet 33, and the support cylinder 3 to be elongated with the movement of the installation through hole 112. The inductor senses the displacement of the installation through hole 112 and transmits an electrical signal to the controller. The controller stops the driving motor 1 from working and switches the gas outlet end 52 of the electromagnetic valve 5 and closes the gas inlet end 51, so that the support cylinder 3 cannot continue to be elongated and the body 11 cannot continue to rotate under the action of inertia. When the blocking piece is loosened, the controller makes the driving motor 1 start working again and opens the gas inlet end 51 of the electromagnetic valve 5, so that gas enters the second gas inlet 34 until the inductor senses that the installation through hole 112 returns to the initial position, and the gas inlet end 51 of the electromagnetic valve 5 is closed through the controller. In this process, the mobile seat continues to move with the rotation of the body 11 and the motor shaft 12. At the same time, the controller makes the driving motor 1 start working again.

[0047] When the installation through hole 112 cannot return to the initial position or the installation through hole 112 is automatically displaced when the blocking piece is not working, the conveying mechanism is abnormally jammed, at this time the length of the support cylinder 3 is slightly floated with the movement of the installation through hole 112, thereby playing a buffering role, and the alarm sends out sound and light alarm under the action of the controller, reminding manual intervention to the mechanism, and the controller stops the driving motor 1 from working, switches the gas outlet end 52 of the electromagnetic valve 5 and closes the gas inlet end 51, so that the support cylinder 3 cannot continue to be elongated and the driving motor 1 cannot continue to rotate under the action of inertia to damage the internal structure.

[0048] The embodiment has the beneficial effects that the installation and protection of the driving motor 1 are realized with a simple structure, the whole is easy to adjust, and can adapt to the demand of accurate movement of the workpiece.

[0049] Embodiment two:

[0050] The difference between the embodiment and the embodiment one is that the mobile seat is not arranged in the embodiment. The motor shaft 12 drives the annular transmission belt to controllably move, and the workpiece is placed on the transmission belt. When the workpiece reaches the corresponding work station, the blocking piece only blocks the workpiece, and the transmission belt keeps moving. When the transmission belt cannot continue to move due to mechanical failure, the sensor 4 senses that the installation arm 111 rotates, and the alarm sends out sound and light signal alarm.

[0051] Embodiment three:

[0052] The difference between the embodiment and the embodiment one is that the mobile seat and the blocking piece are not arranged in the embodiment, and the conveying mechanism is only used to convey the workpiece between two fixed positions. When the sensor 4 senses that the installation arm 111 rotates, the alarm sends out sound and light signal alarm.

[0053] Example 4:

[0054] The difference between this example and example 3 is that no alarm is provided in this example.

[0055] The technical features of the above-described examples can be combined in any manner. To make the description brief, all possible combinations of the technical features in the above-described examples are not described, but it should be understood that any combination of the technical features is within the scope of the present disclosure, as long as the combination does not result in a contradiction.

[0056] The above-described examples only express several embodiments of the present application, and the description is relatively specific and detailed, but it should not be understood as a limitation on the scope of the patent. It should be noted that for ordinary skilled persons in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are within the scope of protection of the present application. Therefore, the scope of protection of the present application should be subject to the appended claims.

Claims

1. A power pack for a transport line, characterized in that, The utility model relates to a power assembly, comprising: a driving motor (1) comprising a body (11) and a motor shaft (12) extending transversely from inside the body (11) to outside the body (11) and controllably rotating relative to the body (11), the body (11) being provided with a mounting arm (111) extending away from the motor shaft (12); a bearing seat (2) fixedly connected between the motor shaft (12) and a truss (101); a support cylinder (3) longitudinally arranged and having a first end (31) and a second end (32) opposite to the first end (31), the first end (31) being rotatably connected to the truss (101), and the second end (32) being rotatably connected to one end of the mounting arm (111) away from the motor shaft (12).

2. The power pack of claim 1, wherein, Further comprising a sensor (4) and a controller, the sensing position of the sensor (4) corresponding to the initial position of the second end (32) of the support cylinder (3), and the controller being electrically connected to the sensor (4) and the driving motor (1).

3. The power pack of claim 2, wherein, Further comprising an alarm electrically connected to the controller.

4. The power pack of claim 3, wherein, Further comprising an electromagnetic valve (5) electrically connected to the controller, the electromagnetic valve (5) having one air inlet end (51) and two air outlet ends (52), the air inlet end (51) being communicated with a compressed air source, the two air outlet ends (52) being respectively communicated with a first air inlet (33) and a second air inlet (34) of the support cylinder (3), and the air inlet end (51) of the electromagnetic valve (5) being controllably communicated with any of the air outlet ends (52).

5. The power pack of claim 1, wherein, One end of the mounting arm (111) away from the motor shaft (12) is provided with a mounting through hole (112), a transfer shaft (113) being rotatably connected in the mounting through hole (112), and the second end (32) of the support cylinder (3) being rotatably connected to the transfer shaft (113).

6. The power pack of claim 1, wherein, The driving motor (1) is a reduction motor.

7. The power pack of claim 1, wherein, The body (11) is longitudinally arranged.

8. A delivery mechanism characterized by, The utility model further comprises two oppositely arranged trusses (101), the motor shaft (12) being supported on the two trusses (101) through the two bearing seats (2) and controllably rotating, and the support cylinder (3) being connected to any of the trusses (101).

9. The delivery mechanism of claim 8, wherein, Further comprising a moving seat for carrying a constraint workpiece and controllably moving with the rotation of the motor shaft (12), and a blocking member connected to the truss (101) and used for blocking the moving seat reaching a preset position.

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