CN218200803U - Buffer device and conveying equipment - Google Patents

Abstract

The utility model provides a buffer and transfer apparatus. The buffer device comprises a base and a buffer component; wherein, the relative position of the base and the conveying device is fixed and is connected with the buffer component; the buffer component is rotatably matched with the base; the buffer assembly is used for rotating from an initial state to a first state when the conveyed piece is blocked from moving continuously, and buffering impact force on the conveyed piece; the buffer assembly is also used for being pushed to the second state from the initial state by the conveyed piece when the conveyed piece moves to the preset position along the second direction forming a designated angle with the conveying direction, and the buffer assembly is not interfered with the conveyed piece located at the preset position when being in the second state so as to avoid interfering with the movement route of the conveyed piece, and therefore the conveyed piece can be flatly placed on the conveying device. The buffer assembly is also used for rotating from the first state to the initial state or from the second state to the initial state when the conveyed member is moved away from the preset position so as to be ready for next buffer.

Description

Buffer device and conveying equipment

Technical Field

The utility model relates to an automated production field specifically, relates to a buffer and transfer apparatus.

Background

At present, when materials or workpieces are conveyed on an automatic production line, the materials or the workpieces are usually contained in a material box, so that unified conveying of the materials or the workpieces is realized. To ensure that the magazine can be stopped smoothly at the end of the conveyor belt, the end of the conveyor belt is usually provided with a buffer. Moreover, when the material box is in place, the mechanical arm can vertically lift the material box upwards to take out the materials or the workpieces, and then the material box is put back along the original path.

Existing damping devices are typically linear dampers; the top rod of the buffer is used for absorbing impact force and is compressed until the buffer stops stably; when the material box is taken away, the ejector rod of the buffer can automatically return for the next use. However, after the linear buffer is automatically returned, the ejector rod returns to the initial position, so that when the magazine is returned, the magazine interferes with the buffer, and the magazine cannot be laid on the surface of the conveyor belt.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least, provide a buffer and transfer apparatus to solve buffer and take place the problem of interfering by the movement route of conveying piece.

The buffer device is used for stopping the conveyed piece from moving continuously when the conveyed piece on the conveying device moves to a preset position along a first direction; the buffer device comprises a base and a buffer component; the base and the conveying device are fixed in relative positions and are connected with the buffer assembly;

the cushioning assembly is rotatably engaged with the base; the buffer assembly is used for rotating from an initial state to a first state when the conveyed piece is blocked from moving continuously, and buffering impact force on the conveyed piece;

the buffer assembly is further used for being pushed to a second state by the conveyed piece from the initial state when the conveyed piece moves to the preset position along a second direction; wherein the second direction and the first direction form a designated angle; the buffering assembly is not interfered with the conveyed piece at the preset position when in the second state;

the buffer assembly is further used for rotating from the first state to the initial state or from the second state to the initial state when the conveyed piece moves away from the preset position.

Optionally, the damping assembly comprises a damper, a swing rod and a rebound component; wherein the content of the first and second substances,

one end of the swing rod is used for abutting against the conveyed piece;

the swing link is rotatably matched with the base to rotate among the initial state, the first state and the second state;

the buffer is provided with a telescopic buffer end, and the buffer end can slow down external force in the retraction process and automatically extend out after the external force disappears; the buffer end is used for being connected with the swing rod when in the initial state and being compressed in the process that the swing rod rotates from the initial state to the first state so as to relieve the impact force on the swing rod;

the rebound component is connected with the swing rod and used for driving the swing rod to rotate from the second state to the initial state when the conveyed piece moves away from the preset position.

Optionally, the rebounding component comprises a torsion spring, and two ends of the torsion spring respectively abut against the base and the swing rod; the torsion spring can generate torque opposite to the direction of the external force when being compressed by the external force;

the torsion spring is used for being compressed when the buffering assembly is in the second state so as to drive the swing rod to rotate from the second state to the initial state when the conveyed piece is moved away from the preset position.

Optionally, an installation groove is formed in the swing rod;

one end of the torsion spring, which is connected with the swing rod, is arranged in the mounting groove and abuts against the bottom surface of the mounting groove, and the other end of the torsion spring abuts against the base.

Optionally, the base comprises a base body and a connecting shaft; two ends of the connecting shaft are respectively connected with the base main body; two ends of the connecting shaft are respectively connected with two opposite side walls of the mounting groove, and the oscillating bar can rotate around the connecting shaft;

the torsion spring is sleeved on the connecting shaft.

Optionally, the swing rod includes a contact portion, a connection portion, and a buffer portion; wherein the contact part is used for abutting against the conveyed piece; the connecting part is positioned between the contact part and the buffer part and is used for being rotatably matched with the base;

the buffer part is positioned on one side, close to the buffer, of the connecting part and used for abutting against the buffer end in the process that the swing rod rotates from the initial state to the first state so as to reduce the impact force on the swing rod by compressing the buffer end.

Optionally, when the swing rod is in the initial state, an included angle exists between the extending direction of the contact portion and the first direction.

Optionally, a flexible protective sleeve is arranged on the contact portion of the swing rod and used for protecting the contact portion.

Optionally, the buffer comprises a telescopic rod and a buffer cavity; one end of the telescopic rod is used as the buffer end; the other end of the telescopic rod is arranged in the buffer cavity, the peripheral surface of the telescopic rod is in sliding seal with the outlet of the buffer cavity, so that when the telescopic rod retracts, gas inside the buffer cavity is compressed, and impact force applied to the telescopic rod is relieved.

As another technical solution the utility model also provides a conveying device, which comprises a conveying device, a manipulator and the above buffer device; wherein the conveying device is used for conveying the conveyed piece placed on the conveying device;

the buffer device is fixed relative to the conveying device and is used for blocking the conveyed piece from moving continuously;

the manipulator is used for taking the conveyed piece away along a second direction when the conveyed piece is located at the preset position; the manipulator is also used for placing the conveyed piece at the preset position along the second direction.

The utility model discloses following beneficial effect has:

the utility model provides a buffer device, it is including buffering subassembly and the base that is used for fixed buffering subassembly. When the conveyed piece moves to the preset position along the first direction (namely the conveying direction), the buffering assembly can rotate to the first state from the initial state under the pushing of the conveyed piece, and the impact force applied to the conveyed piece is relieved in the process of rotating to the first state from the initial state, so that the conveyed piece is prevented from being damaged or violently shocked due to the impact force while the conveyed piece is prevented from continuously moving. Moreover, the buffer assembly can also return to the initial state from the first state when the conveyed member is removed from the preset position.

The buffering assembly can move along with the conveyed piece under the pushing of the conveyed piece when the conveyed piece moves to the preset position along a second direction forming a designated angle with the first direction and rotates from the initial state to the second state, and the buffering assembly does not interfere with the conveyed piece located at the preset position when the buffering assembly is in the second state so as not to block the moving route of the conveyed piece, so that the conveyed piece can be laid on a conveying device (such as a conveyor belt).

And when the conveyed member moves away from the preset position, the buffering assembly can return from the second state to the initial state for the next buffering.

Drawings

FIG. 1 is a schematic diagram of a conventional transfer apparatus and a process step diagram;

FIG. 2 is a schematic diagram of another conventional conveying apparatus and a process step diagram;

fig. 3 is a schematic structural diagram and a schematic process step diagram of a conveying apparatus according to an embodiment of the present invention;

fig. 4 is a perspective view of a buffering device provided by an embodiment of the present invention;

fig. 5 is a side view of a cushioning device according to an embodiment of the present invention;

fig. 6 is a perspective view of a conveying apparatus according to an embodiment of the present invention.

Detailed Description

In order to make those skilled in the art better understand the technical solution of the present invention, the buffer device and the conveying apparatus provided by the present invention are described in detail below with reference to the accompanying drawings.

As shown in fig. 1, the conventional transfer apparatus generally includes a transfer device 01 and a buffer 02 provided at the end of the transfer device 01; the conveying device 01 is used for driving the conveyed part 03 to move on the conveying device 01, and the buffer 02 is used for blocking the conveyed part 03 from moving continuously when the conveyed part is conveyed to the tail end of the conveying device 01. The conventional damper 02 is generally a linear damper 02. Specifically, the buffer 02 comprises a buffer cavity and a push rod arranged in the buffer cavity; the ejector pins are generally disposed parallel to the surface of the transfer device 01, and are used for abutting against the transferred member 03 when the transferred member 03 moves to the buffer 02, and absorbing the impact force by retracting the buffer cavities, so that the transferred member 03 is smoothly stopped.

As shown in fig. 1, the conveying apparatus further includes a robot arm 04, and the robot arm 04 is used for taking and placing the conveyed member 03 when it reaches the buffer 02. However, since the linear buffer 02 automatically returns to be ready for the next use after the external force disappears, when the robot 04 returns the transferred object 03 to the buffer 02, the rod of the buffer 02 interferes with the movement path of the transferred object 03, and thus the transferred object 03 cannot be returned.

In order to solve the problem that the transferred member 03 cannot be put back, in some related technical solutions, as shown in fig. 2, the robot 04 employs a multi-axis robot 04 so as to be capable of performing both the pick-and-place operation and the translation operation, so that when the robot 04 puts the transferred member 03 back to the buffer 02, the transferred member 03 can be placed on the transfer device 01 while bypassing the buffer 02. However, the multi-axis robot has a complex structure, high cost and a large floor area, which leads to high overall cost of the transfer apparatus.

In order to solve the above technical problem, a buffering device of the present embodiment, as shown in fig. 3, includes a base 2 and a buffering assembly 1, for blocking a conveyed object 3 on a conveying device from moving further when the conveyed object moves to a preset position along a first direction x, where the first direction x is a conveying direction of the conveying device, and the preset position is a position where the movement of the conveyed object 3 along the first direction x is stopped. Specifically, the conveyed member 3 is, for example, a magazine, and the conveying means is, for example, a conveyor belt. The base 2 is fixed relative to the conveying device and connected to the buffer assembly 1, so as to mount the buffer assembly 1 at a position corresponding to the predetermined position. Also, the cushion assembly 1 is rotatably engaged with the base 2.

As shown in fig. 3, the initial state of the cushion assembly 1 is a state of receiving no external thrust. Moreover, in the process that the conveyed member 3 is firstly contacted with the buffering assembly 1 to move to the preset position, the buffering assembly 1 can continuously abut against the conveyed member 3 and is pushed to the first state by the conveyed member 3 from the initial state. Moreover, the buffer assembly 1 is used for relieving the impact force applied to the conveyed member 3 in the process of blocking the conveyed member 3 from moving continuously, so that the conveyed member 3 stops moving smoothly, and the conveyed member 3 is prevented from being damaged by the impact.

When the conveyed member 3 is moved from the preset position, the buffering assembly 1 can also rotate from the first state to the initial state to be ready for blocking the next conveyed member 3.

The buffering assembly 1 is further used for pushing the conveyed member 3 from the initial state to the second state when the conveyed member 3 moves to the preset position along the second direction y. The second direction y and the first direction x form a designated angle; and the buffer component 1 is not interfered with the conveyed member at the preset position when in the second state, so that when the mechanical arm 4 puts the conveyed member 3 back to the preset position, the buffer component 1 can approach the conveying device along with the conveyed member 3 without interfering with the movement path of the conveyed member 3, thereby leading the conveyed member 3 to be put back to the surface of the conveying device and be flatly put on the surface of the conveying device.

Moreover, when the conveying device moves the conveyed member 3 from the preset position, the buffering assembly 1 can also rotate from the second state to the initial state for blocking the conveyed member 3 at the next time.

Taking the conveyor shown in fig. 3 as an example, wherein the conveyor is horizontally disposed, correspondingly, the first direction x is a horizontal direction. Moreover, the mechanical arm 4 is used for lifting the transported object 3 moved to the preset position or lowering the transported object 3 located above the preset position, that is, the second direction y is a vertical direction, that is, the pick-and-place direction of the mechanical arm 4 is a vertical direction.

However, the conveying means in the present embodiment is not limited to the arrangement shown in fig. 3; specifically, the conveying device can be placed at a certain angle with the horizontal plane, so that the first direction forms a certain angle with the horizontal direction; the pick-and-place direction of the mechanical arm 4 may still be a vertical direction, or the pick-and-place direction of the mechanical arm 4 may also be perpendicular to the first direction.

In some embodiments, as shown in fig. 4, the cushion assembly 1 includes a bumper 11, a rocker 12, and a resilient member. Wherein, one end of the swing rod 12 is used for propping against the conveyed piece 3; the oscillating bar 12 is rotatably matched with the base 2 to rotate among the initial state, the first state and the second state; specifically, when the conveyed member 3 moves to the preset position along the first direction x, the swing rod 12 can rotate in a direction away from the conveying device under the pushing of the conveyed member 3; the swing link 12 can also be rotated in a direction approaching the conveyor by being pushed by the conveyor 3 when the conveyor 3 is moved to the preset position in the second direction y.

Moreover, taking the buffering assembly as shown in fig. 3 as an example, when the buffering assembly 1 is in the second state, the end of the swing link 12 contacts the side surface of the conveyed member 3, but does not contact the bottom surface of the conveyed member 3, so as to avoid blocking the conveyed member 3 from flatly laying on the surface of the conveying device.

Specifically, as can be seen from fig. 3, since the swing link 12 is rotatably engaged with the base 2, the movement locus of the end of the swing link 12 is substantially circular, so that while the end of the swing link 12 moves along the second direction y, it will also rotate in a direction away from the conveyed member 3, so that when the conveyed member 3 reaches the preset position, the end of the swing link 12 will not be blocked between the conveyed member 3 and the conveying device, and the conveyed member 3 can be ensured to be flatly placed on the conveying device.

As shown in fig. 4, the buffer 11 has a retractable buffer end for buffering external force during retraction and automatically extending after the external force disappears. The buffer end of the buffer 11 is used for being connected with the swing rod 12 when in the initial state, and is compressed in the process that the swing rod 12 rotates from the initial state to the first state so as to relieve the impact force applied to the swing rod 12. The resilient member is connected to the swing link 12 for driving the swing link 12 from the second state to the initial state when moved away from the predetermined position by the conveyor 3.

Further, since the buffering end of the buffer 11 is extended generally slowly, it is not enough to push the swing link 12 to rotate from the first state to the initial state. To solve this problem, in some embodiments, the center of gravity of the swing link 12 may be disposed at a side close to the conveyor where it is engaged with the base 2, so that the swing link 12 rotates toward the conveyor under its own weight to rotate back to the initial state. Alternatively, in other embodiments, the resilient member may also be capable of driving the swing link 12 from the first state to the initial state when moved from the predetermined position by the conveyor 3.

In some embodiments, as shown in fig. 5, the swing link 12 includes a contact portion 121, a connection portion 122, and a buffer portion 123. Wherein the contact portion 121 is adapted to abut against a surface of the conveyed member 3. The connecting portion 122 is located between the contact portion 121 and the buffer portion 123, and is configured to rotatably cooperate with the base 2. The buffer portion 123 is located on a side of the connecting portion 122 close to the buffer 11, and is used for abutting against a buffer end of the buffer 11 in the process that the swing link 12 is pushed from the initial state to the first state, so as to buffer the impact force applied to the swing link 12 by compressing the buffer end.

In some embodiments, as shown in fig. 5, the buffer 11 is disposed below the buffer portion 123 of the swing link 12 and is connected and fixed with the base 2.

In some preferred embodiments, when the swing rod 12 is in the initial state, the extending direction of the contact portion 121 forms an angle with the first direction x, so that when the conveyed member 3 moves to the position contacting with the contact portion 121 along the first direction x, the pushing force exerted on the contact portion 121 by the conveyed member 3 along the first direction x is not parallel to the extending direction of the contact portion 121, thereby forming a torque to push the swing rod 12 to rotate.

In some embodiments, a flexible protective sleeve 14 is disposed on the contact portion 121 of the swing link 12 for protecting the contact portion 121. Preferably, the flexible boot 14 is made of a polyurethane material.

In some embodiments, as shown in fig. 5, the resilient member comprises a torsion spring 13, and the torsion spring 13 can generate a torque opposite to the direction of the external force when being stretched or compressed by the external force. Two ends of the torsion spring 13 are respectively propped against the base 2 and the swing rod 12; specifically, the torsion spring 13 is configured to be compressed when the damping assembly 1 is in the second state and rebound after the pushing force applied to the swing link 12 is removed, so as to push the swing link 12 to rotate from the second state to the initial state when the conveying member 3 is moved away from the preset position.

In other embodiments, the two ends of the torsion spring 13 are respectively connected and fixed with the base 2 and the swing link 12. Moreover, the torsion spring 13 is also used to be stretched when the damping assembly 1 is in the first state and rebound after the thrust exerted on the swing link 12 disappears, so as to pull the swing link 12 to rotate from the first state to the initial state when the conveyed member 3 is removed from the preset position.

In some embodiments, the swing rod 12 is provided with an installation groove; specifically, the mounting groove is formed in the surface of one side of the swing rod 12 facing the conveying device; moreover, one end of the torsion spring 13 connected with the swing rod 12 is arranged in the mounting groove and abuts against the bottom surface of the mounting groove, and the other end of the torsion spring 13 abuts against the base 2 so as to limit the position of the torsion spring 13 in the mounting groove, thereby preventing the torsion spring 13 from shaking in the transmission process and causing uneven force application of the torsion spring 13 to the swing rod 12.

In some embodiments, the base 2 includes a base body 21 and a connecting shaft 22. Wherein, two ends of the connecting shaft 22 are respectively connected with the base main body 21; moreover, the middle part of the connecting shaft 22 is located in the mounting groove, two ends of the connecting shaft 22 are also respectively connected with two opposite side walls of the mounting groove, and the swing rod 12 can rotate around the connecting shaft 22, so that the swing rod 12 can rotate relative to the base. The torsion spring 13 is sleeved on the connecting shaft 22 to fix the torsion spring 13.

In some embodiments, the damper 11 includes a telescoping rod 111 and a damper chamber 112. One end of the telescopic rod 111 serves as a buffer end of the buffer 11; the other end of the telescopic rod 111 is disposed in the buffer chamber 112, and the outer peripheral surface of the telescopic rod 111 is in sliding seal with the outlet of the buffer chamber 112, so that when the telescopic rod 111 retracts, the gas inside the buffer chamber 112 is compressed, and the impact force applied to the telescopic rod 111 is reduced.

In some embodiments, the damper 11 may be a linear damper as described above.

As another technical solution, the present embodiment further provides a conveying apparatus, as shown in fig. 6, which includes a conveying device 5, a robot (not shown in the figure), and the above-mentioned buffering device. Wherein the conveying device 5 is used for conveying the conveyed member 3 placed thereon. The buffer device is fixed relative to the conveying device 5 and is used for blocking the conveyed piece 3 on the conveying device from further moving. The manipulator is used for taking the conveyed piece 3 away along the second direction when the conveyed piece 3 is positioned at the preset position; the manipulator is also used for placing the conveyed piece at the preset position along the second direction.

Specifically, in some embodiments, as shown in fig. 6, the buffer device is disposed at the end of the conveyor 5. Correspondingly, the tail end of the conveying device is provided with a mounting plate for being connected and fixed with the buffering device.

In the above, the damping device provided by the present embodiment includes the damping component and the base for fixing the damping component. The buffer assembly can slow down impact force received by the conveying piece when the conveying piece moves to the preset position along the first direction, and can move along with the conveying piece in the process that the conveying piece is placed at the preset position of the conveying device again, so that the buffer assembly cannot interfere with the movement route of the conveying piece, the conveying piece can be flatly placed on the conveying device, and the manipulator does not need to be improved.

It is to be understood that the above embodiments are merely exemplary embodiments that have been employed to illustrate the principles of the present invention, and that the present invention is not limited thereto. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit and substance of the invention, and these modifications and improvements are also considered to be within the scope of the invention.

Claims (10)

1. The buffer device is used for blocking the conveyed piece from moving continuously when the conveyed piece on the conveying device moves to a preset position along a first direction; the buffer device is characterized by comprising a base and a buffer component; the base and the conveying device are fixed in relative positions and are connected with the buffer assembly;

the cushioning assembly is rotatably engaged with the base; the buffer assembly is used for rotating from an initial state to a first state when the conveyed piece is blocked from moving continuously, and buffering impact force on the conveyed piece;

the buffering assembly is further used for being pushed to a second state from the initial state by the conveyed piece when the conveyed piece moves to the preset position along a second direction; wherein the second direction and the first direction form a designated angle; the buffer assembly is not interfered with the conveyed piece at the preset position when in the second state;

the buffer assembly is further used for rotating from the first state to the initial state or from the second state to the initial state when the conveyed piece moves away from the preset position.

2. The cushioning device of claim 1, wherein the cushioning assembly comprises a bumper, a rocker, and a resilient member; wherein the content of the first and second substances,

one end of the swing rod is used for abutting against the conveyed piece;

the swing link is rotatably matched with the base to rotate among the initial state, the first state and the second state;

the buffer is provided with a telescopic buffer end, and the buffer end can slow down external force in the retraction process and automatically extend out after the external force disappears; the buffer end is used for being connected with the swing rod when in the initial state and being compressed in the process that the swing rod rotates from the initial state to the first state so as to relieve the impact force on the swing rod;

the rebound component is connected with the swing rod and used for driving the swing rod to rotate from the second state to the initial state when the conveyed piece moves away from the preset position.

3. A damper of claim 2 wherein said resilient member comprises a torsion spring having opposite ends abutting said base and said rocker, respectively; the torsion spring can generate torque opposite to the direction of the external force when being compressed by the external force;

the torsion spring is used for being compressed when the buffering assembly is in the second state so as to drive the swing rod to rotate from the second state to the initial state when the conveyed piece is moved away from the preset position.

4. The buffer device of claim 3, wherein the swing link is provided with an installation groove;

one end of the torsion spring, which is connected with the swing rod, is arranged in the mounting groove and abuts against the bottom surface of the mounting groove, and the other end of the torsion spring abuts against the base.

5. The cushioning device of claim 4, wherein the base includes a base body and a connecting shaft; two ends of the connecting shaft are respectively connected with the base main body; two ends of the connecting shaft are respectively connected with two opposite side walls of the mounting groove, and the oscillating bar can rotate around the connecting shaft;

the torsion spring is sleeved on the connecting shaft.

6. The cushioning device of claim 2, wherein the rocker includes a contact portion, a connecting portion, and a cushioning portion; wherein the contact part is used for abutting against the conveyed piece; the connecting part is positioned between the contact part and the buffer part and is used for being rotatably matched with the base;

the buffer part is positioned on one side, close to the buffer, of the connecting part and used for abutting against the buffer end in the process that the swing rod rotates from the initial state to the first state so as to reduce the impact force on the swing rod by compressing the buffer end.

7. The damping device of claim 6, wherein when the rocker is in the initial state, an angle exists between the extending direction of the contact portion and the first direction.

8. A fender according to claim 6 wherein a flexible protective sleeve is provided over the contact portion of the rocker to protect the contact portion.

9. The cushioning device of claim 2, wherein the bumper comprises a telescoping rod and a cushioning chamber; one end of the telescopic rod is used as the buffer end; the other end of the telescopic rod is arranged in the buffer cavity, the peripheral surface of the telescopic rod is in sliding seal with the outlet of the buffer cavity, so that when the telescopic rod retracts, gas inside the buffer cavity is compressed, and impact force applied to the telescopic rod is relieved.

10. A transfer apparatus comprising a transfer device, a robot and a buffer device according to any one of claims 1 to 9; wherein the conveying device is used for conveying the conveyed piece placed on the conveying device;

the buffer device is fixed relative to the conveying device and is used for blocking the conveyed piece from moving continuously;

the manipulator is used for taking the conveyed piece away along a second direction when the conveyed piece is located at the preset position; the manipulator is also used for placing the conveyed piece at the preset position along the second direction.

Images