TWI765614B - Variable distance loading and unloading mechanism - Google Patents

Abstract

The invention provides a variable-distance loading and unloading mechanism, which comprises an accommodating shell, a power device, a plurality of driving screws and a plurality of movable loading and unloading components. The power device is disposed outside one side of the accommodating housing and configured to provide a rotational force. The driving screws are accommodated in the accommodating housing, and each of the driving screws has an extension direction and is configured to receive the rotational force of the power device to rotate. Each of the movable loading and unloading components includes a support rod and a moving piece, the moving piece is connected to the support rod and screwed to one of the driving screws, and the support rod is located in the accommodating shell. In addition, the moving parts of each movable loading and unloading assembly are configured to move along the extending direction along with the rotation of the corresponding driving screw, thereby moving the supporting rod.

Description

Variable distance loading and unloading mechanism

The invention provides a loading and unloading mechanism, especially a variable-distance loading and unloading mechanism.

In automated production, it is often necessary to install multiple materials at the same time. However, the distance between the materials before being installed is usually different from the distance after installation. Therefore, the distance between the mounting pieces for holding or adsorbing the materials must be adjusted to meet the installation requirements. demand.

However, the current mechanisms for adjusting the spacing of the mounts are not durable, difficult to operate 24 hours a day, have insufficient stroke of the variable pitch, and have poor accuracy.

The inventors have exhausted their minds to study carefully, and then developed a variable-pitch loading and unloading mechanism, in order to achieve high durability, sufficient variable-pitch stroke, 24-hour operation and high precision.

The invention provides a variable-distance loading and unloading mechanism, which comprises an accommodating shell, a power device, a plurality of driving screws and a plurality of movable loading and unloading components. The power device is disposed outside one side of the accommodating housing and configured to provide a rotational force. The driving screws are accommodated in the accommodating housing, and each of the driving screws has an extension direction and is configured to receive the rotational force of the power device to rotate. Each of the movable loading and unloading components includes a support rod and a moving piece, the moving piece is connected to the support rod and screwed to one of the driving screws, and the support rod is located in the accommodating shell. In addition, each should be movable The moving part of the loading and unloading assembly is configured to move along the extending direction with the rotation of the corresponding driving screw, thereby moving the supporting rod.

In one embodiment, the accommodating housing includes a working side wall, the working side wall has a strip-shaped opening, and the moving member of each movable loading and unloading assembly further extends a connecting portion, and the connecting portion passes through the strip-shaped opening. to connect the moving piece to the support rod.

In one embodiment, the variable-distance loading and unloading mechanism further includes a fixed loading and unloading assembly, and the fixed loading and unloading assembly is fixed on the outer side of the working side wall.

In one embodiment, the variable-distance loading and unloading mechanism further comprises at least one slide rail fixed on the outer side of the working side wall, the at least one slide rail is arranged parallel to the extending direction, and each of the movable loading and unloading components further comprises: Corresponding to at least one chute piece of the at least one slide rail, the at least one chute piece is connected to the side of the support rod facing the working side wall.

In one embodiment, the accommodating housing includes two bearing side walls opposite to each other in the extending direction to support the driving screws.

In one embodiment, the power device is a servo motor, and the variable-pitch loading and unloading mechanism further includes a belt gear set disposed between the power device and the driving screws to provide the rotational force of the power device. to the drive screws.

In one embodiment, the driving screws include at least one first driving screw and at least one second driving screw, and the at least one first driving screw has a single-directional external thread for screwing with one of the movable loading and unloading components. A moving part, the at least one second driving screw has two sections of external threads in opposite directions for screwing with the moving parts of two of the movable loading and unloading components.

In one embodiment, the variable-distance loading and unloading mechanism further includes a photoelectric switch, the photoelectric switch is disposed on a top wall of the accommodating casing and the signal is connected to the power device, and the movable One of the loading and unloading components further includes a blocking piece corresponding to the photoelectric switch, and the blocking piece is fixed on the top of one of the supporting rods.

In one embodiment, each of the movable loading and unloading components further includes an extension piece and a loading and unloading work piece, the extension piece is fixed on the support rod and has a bent end, and the loading and unloading work piece is fixed on the support rod. Bend the bottom of the end.

In one embodiment, the support rod of each movable loading and unloading assembly has a rod body and two convex parts protruding from one side of the rod body, and the extension piece is fixed on the two convex parts and is connected with the rod body. There is a gap, the variable-distance loading and unloading mechanism further includes a blocking piece, the blocking piece is inserted between the rod body of the supporting rod of each movable loading and unloading assembly and the extension piece, and the two end sides of the blocking piece are fixed on the accommodating shell.

In one embodiment, the pitches of the external threads of the drive screws are different from each other.

In one embodiment, the driving screws provide different moving strokes for the corresponding moving members, and when the moving member with the smallest moving stroke among the moving members is driven by the corresponding driving screw to move for a moving stroke, The other moving parts move distances that are different multiples of the moving stroke.

Thereby, the variable-pitch loading and unloading mechanism of the present invention is driven by a plurality of driving screws to drive a plurality of movable loading and unloading components, and has the functions of high durability, sufficient variable-pitch stroke, 24-hour operation and high precision.

1: Variable distance loading and unloading mechanism

10: accommodating shell

100: Working side walls

101: Strip opening

102: Pedestal

103: Bearing side wall

104: Top Wall

11: Powerplant

12: Drive screw

121: The first drive screw

122: Second drive screw

13: Movable loading and unloading components

130: Support rod

131: Moving Parts

132: Connector

133: Chute parts

134: Extensions

135: Loading and unloading work pieces

136: Bend the end

137: Culm

138: convex part

139: gas nozzle

14: Slide rail

15: Baffle

16: Fix the loading and unloading components

17: Belt gear set

18: Photoelectric switch

19: Blocker

E1: extension direction

G1: Interval

R1: External thread

R2: External thread

R3: External thread

[Fig. 1] It is a partial schematic diagram of a variable-pitch loading and unloading mechanism according to a specific embodiment of the present invention.

[FIG. 2] It is a partial schematic diagram 2 of a variable-distance loading and unloading mechanism according to a specific embodiment of the present invention.

[Fig. 3] is a schematic cross-sectional view of a variable-pitch loading and unloading mechanism according to a specific embodiment of the present invention.

[FIG. 4] is a three-dimensional schematic diagram of a variable-distance loading and unloading mechanism according to a specific embodiment of the present invention.

In order to fully understand the purpose, features and effects of the present invention, the present invention is described in detail by the following specific embodiments and the accompanying drawings. The description is as follows: The invention provides a variable-distance loading and unloading mechanism 1 , which includes an accommodating housing 10 , a power device 11 , a plurality of driving screws 12 and a plurality of movable loading and unloading components 13 . The power device 11 is disposed outside one side of the accommodating housing 10 and configured to provide a rotational force. The driving screws 12 are accommodated in the accommodating housing 10 and arranged side by side with each other. Each of the driving screws 12 has an extension direction E1 and is configured to receive the rotational force of the power device 11 to rotate. Each of the movable loading and unloading components 13 includes a support rod 130 and a moving piece 131. The moving piece 131 is connected to the support rod 130 and is internally threaded to one of the driving screws 12. The support rod 130 is located outside the accommodating housing 10, and the moving parts 131 of each movable loading and unloading assembly 13 are configured to move forward or reversely along the extending direction E1 along with the rotation of the corresponding driving screw 12, Then, the support rod 130 is moved. The variable-distance loading and unloading mechanism 1 can be configured in an installation equipment (not shown), and the installation equipment is built with a programmable logic control (PLC) system to control the variable-distance loading and unloading mechanism 1 horizontally or vertically Move for item installation.

Thereby, the variable-pitch loading and unloading mechanism 1 of the present invention is driven by a plurality of driving screws 12 to drive a plurality of movable loading and unloading components 13, and has the functions of high durability, sufficient variable-pitch stroke, 24-hour operation and high precision.

As shown in FIG. 1 , the pitches of the external threads of the driving screws 12 are different from each other, thereby providing different movement strokes for the screwed moving parts 131 under the same rotational force.

As shown in FIG. 1 , in an embodiment, the accommodating housing 10 includes two bearing side walls 103 opposite to each other in the extending direction E1 to support the driving screws 12 . The power device 11 can be a servo motor, and the variable-distance loading and unloading mechanism 1 further includes a belt gear set 17 disposed between the power device 11 and the driving screws 12 to rotate the power device 11 . Power is transmitted to the drive screws 12 . The power device 11 may be located outside a top wall 104 of the accommodating housing 10 , and the belt gear set 17 may be located outside one of the bearing side walls 103 . But it is not limited to this, and other transmission mechanisms can also be used to transmit the power of the power device 11 to the drive screws 12 .

As shown in FIG. 2 and FIG. 3 , in one embodiment, the accommodating housing 10 includes a working side wall 100 , the working side wall 100 has a strip-shaped opening 101 , and the moving parts 131 of the movable loading and unloading components 13 are further extended. A connecting portion 132 is formed, and the connecting portion 132 passes through the strip-shaped opening 101 to connect the moving member 131 to the supporting rod 130 . Since the moving member 131 only moves along the extending direction E1, the strip-shaped opening 101 also along the extending direction E1 is opened in the working side wall 100, so that the horizontal moving force converted from the rotational force of the driving screw 12 can be transmitted to the The support rod 130 outside the housing 10 is accommodated. The ball-screw-type driving mechanism formed by the driving screw 12 and the moving member 131 can be integrally located in the accommodating housing 10 to obtain good protection.

As shown in FIG. 1 and FIG. 2 , in one embodiment, the driving screws 12 include at least one first driving screw 121 and at least one second driving screw 122 arranged in parallel with each other. The at least one first driving screw 121 has a single-directional external thread R1 for screwing with the moving member 131 of one of the movable loading and unloading components 13 , and the at least one second driving screw 122 has two oppositely directed external threads The R2 and the external thread R3 are screwed to the moving parts 131 of two of the movable loading and unloading components 13 . When the second driving screw 122 rotates, the moving parts 131 screwed to the external thread R2 and the external thread R3 respectively move in opposite directions, and the two moving parts 131 can move away from or close to each other depending on the direction of rotation. The number of drive screws 12 and each drive screw The direction and the number of segments of the external threads on the rod 12 are not limited to this embodiment, and users can adjust them according to actual needs. The external threads R2 and R3 of the different second driving screws 122 are also different from each other. In this embodiment, the first driving screw 121 and the two second driving screws 122 provide different moving strokes for the corresponding moving parts 131 due to the difference in pitch, and the moving parts 131 have the smallest moving strokes. When the moving member 131 is driven by the corresponding driving screw 12 to move a moving stroke, the other moving members 131 can respectively move distances that are different multiples of the moving stroke. Specifically, in this embodiment, the moving member 131 corresponding to the first driving screw 121 has a minimum moving stroke. When the moving member 131 corresponding to the first driving screw 121 moves for a moving stroke, the two second The moving members 131 corresponding to the driving screws 122 can move two times and three times the moving strokes respectively. For example, when the first driving screw 121 makes one turn to move the corresponding moving member 131 by 10 millimeters (mm), one of the two second driving screws 122 can move the corresponding two moving members 131 by 20 mm. millimeters (mm), the other one of the two second driving screws 122 can move the corresponding two moving parts 131 by 30 millimeters (mm).

As shown in FIGS. 1 to 3 , in one embodiment, the variable-distance loading and unloading mechanism 1 may further include at least one sliding rail 14 fixed on the outer side of the working side wall 100 . In this embodiment, two parallel slide rails 14 are provided, but it is not limited to this. The sliding rail 14 can be disposed parallel to the extending direction E1, and each movable loading and unloading assembly 13 can further include at least one sliding groove piece 133 corresponding to the at least one sliding rail 14, and the at least one sliding groove piece 133 is connected to the bearing. The support rod 130 faces the side of the working side wall 100 . The sliding rails 14 can support the weight of the movable loading and unloading assemblies 13 and guide the movable loading and unloading assemblies 13 to move in the extending direction E1, so that the driving screw 12 does not need to bear any force other than rotation.

As shown in FIGS. 2 and 3 , in one embodiment, each of the movable loading and unloading assemblies 13 may further include an extension piece 134 and a loading and unloading working piece 135 . The extension piece 134 is fixed to the support rod 130 and has a bent end 136 . The loading and unloading work piece 135 is fixed to the bottom of the bending end 136 . The extension piece 134 can be fixed to the support rod 130 by screwing, but is not limited thereto. The loading and unloading work piece 135 can be fixed to the bent end 136 by screw locking, but not limited to this. The loading and unloading work piece 135 can be an adsorber, which is connected to a negative pressure device (not shown in the figure) through the air nozzle 139 disposed at the bending end 136 to adsorb the material piece (not shown in the figure), but it is not limited to this. After the loading and unloading work pieces 135 of each movable loading and unloading assembly 13 absorb the material, the distance between the movable loading and unloading assemblies 13 can be adjusted to install the material on a predetermined device (not shown).

As shown in FIG. 2 to FIG. 4 , in one embodiment, the supporting rod 130 of each movable loading and unloading assembly 13 has a rod body 137 and two protrusions 138 protruding from one side of the rod body 137 . The member 134 is fixed on the two convex portions 138 and has a gap G1 with the rod body 137. The variable-distance loading and unloading mechanism 1 may further include a blocking piece 15, and the blocking piece 15 is inserted into each of the movable loading and unloading materials. The gap G1 between the rod body 137 of the support rod 130 of the assembly 13 and the extension piece 134 , both ends of the blocking piece 15 are fixed to the accommodating housing 10 . Two bases 102 can be protruded on both ends of the working side wall 100 of the accommodating housing 10 to fix the two ends of the blocking piece 15 . The baffles 15 can shield the slide rails 14 and the support rods 130 of the movable loading and unloading assemblies 13 to reduce the adhesion of dust or material debris, thereby reducing the frequency of downtime for maintenance.

As shown in FIGS. 1 and 2 , in one embodiment, the variable-distance loading and unloading mechanism 1 may further include a fixed loading and unloading assembly 16 , and the fixed loading and unloading assembly 16 is fixed on the outer side of the working side wall 100 . Compared with each of the movable loading and unloading assemblies 13 , the fixed loading and unloading assemblies 16 are not linked to the driving screw 12 and therefore do not move along the extending direction E1 . Other structures of the fixed loading and unloading assemblies 16 may be the same as those of the movable loading and unloading assemblies 13 . The fixed loading and unloading components 16 are usually arranged at the center of the movable loading and unloading components 13 , but not limited thereto.

As shown in FIG. 1 , FIG. 2 and FIG. 4 , in one embodiment, the variable-distance loading and unloading mechanism 1 may further include a photoelectric switch 18 , and the photoelectric switch 18 is disposed on the top wall of the accommodating case 10 . 104 on and news The number is connected to the power device 11, and one of the movable loading and unloading components 13 further includes a blocking member 19 corresponding to the photoelectric switch. The blocking member 19 is fixed on a top of the support rod 130 . When the blocking member 19 blocks the photoelectric switch 18 , the power device 11 stops running. The photoelectric switch 18 can be close to the edge of the top wall 104 , and the movable loading and unloading assembly 13 provided with the blocking member 19 can be the outermost one among the movable loading and unloading assemblies 13 , but not limited to this.

The present invention has been disclosed above with preferred embodiments, but those skilled in the art should understand that the embodiments are only used to describe the present invention, and should not be construed as limiting the scope of the present invention. It should be noted that all changes and substitutions equivalent to this embodiment should be considered to be included within the scope of the present invention. Therefore, the protection scope of the present invention should be defined by the scope of the patent application.

1: Variable distance loading and unloading mechanism

10: accommodating shell

103: Bearing side wall

104: Top Wall

11: Powerplant

12: Drive screw

121: The first drive screw

122: Second drive screw

13: Movable loading and unloading components

130: Support rod

131: Moving Parts

16: Fix the loading and unloading components

17: Belt gear set

18: Photoelectric switch

19: Blocker

E1: extension direction

R1: External thread

R2: External thread

R3: External thread

Claims (11)

A variable-distance loading and unloading mechanism, comprising: an accommodating shell; a power device, disposed outside one side of the accommodating shell and configured to provide a rotating power; a plurality of driving screws, accommodating in the accommodating shell In the casing, each of the driving screws has an extension direction and is configured to receive the rotational force of the power device to rotate; and a plurality of movable loading and unloading assemblies, each of which includes a support rod and a moving piece, the The moving part is connected to the supporting rod and is screwed to one of the driving screws, the supporting rod is located outside the accommodating housing, and the moving parts of each movable loading and unloading assembly are configured to follow the corresponding The rotation of the driving screw moves along the extending direction, thereby moving the support rod; wherein the driving screws are arranged in parallel with each other and include at least one first driving screw and at least one second driving screw, the at least one first driving screw The driving screw has a single-direction external thread to screw the moving part of one of the movable loading and unloading components, and the at least one second driving screw has two oppositely directed external threads to screw the movable parts of the movable loading and unloading components. Two of the moving parts. The variable-distance loading and unloading mechanism according to claim 1, wherein the accommodating housing comprises a working side wall, the working side wall has a strip-shaped opening, and a connecting portion extends from the moving member of each movable loading and unloading assembly, the A connecting portion passes through the strip-shaped opening to connect the moving member to the supporting rod. The variable-distance loading and unloading mechanism according to claim 2, further comprising a fixed loading and unloading assembly, and the fixed loading and unloading assembly is fixed on the outer side of the working side wall. The variable-distance loading and unloading mechanism according to claim 2, further comprising at least one sliding rail fixed on the outer side of the working side wall, the at least one sliding rail is arranged parallel to the extending direction, and each of the movable loading and unloading components is further At least one chute piece corresponding to the at least one slide rail is included, and the at least one chute piece is connected to the side of the support rod facing the working side wall. The variable-distance loading and unloading mechanism according to claim 1, wherein the accommodating housing includes two bearing side walls facing each other in the extending direction to support the driving screws. The variable-pitch loading and unloading mechanism according to claim 1, wherein the power device is a servo motor, and the variable-pitch loading and unloading mechanism further comprises a belt gear set disposed between the power device and the driving screws , so as to transmit the rotational force of the power device to the drive screws. The variable-distance loading and unloading mechanism according to claim 1, further comprising a photoelectric switch, the photoelectric switch is disposed on a top wall of the accommodating casing and the signal is connected to the power device, and the movable loading and unloading materials One of the components further includes a blocking piece corresponding to the photoelectric switch, and the blocking piece is fixed on the top of one of the supporting rods. The variable-distance loading and unloading mechanism according to claim 1, wherein each movable loading and unloading assembly further comprises an extension piece and a loading and unloading working piece, the extension piece is fixed to the support rod and has a bent end, The loading and unloading work piece is fixed on the bottom of the bent end. The variable-distance loading and unloading mechanism according to claim 8, wherein the support rod of each movable loading and unloading assembly has a rod body and two protrusions protruding from one side of the rod body, and the extension member is fixed to the rod body. The two protruding parts have a gap with the rod body. The variable-distance loading and unloading mechanism further includes a blocking piece, and the blocking piece is inserted between the rod body of the supporting rod of each movable loading and unloading assembly and the extension piece. During this time, both ends of the blocking piece are fixed to the accommodating housing. The variable-pitch loading and unloading mechanism according to claim 1, wherein the driving screws have external threads with different pitches from each other. The variable-distance loading and unloading mechanism according to claim 1, wherein the driving screws provide the corresponding moving parts with different moving strokes, and the moving part with the smallest moving stroke among the moving parts is driven by the corresponding moving parts When the screw is driven to move a moving stroke, the other moving parts move distances of different multiples of the moving stroke respectively.

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