Roller bed conveying line tray locking device for laser cutting machine

Abstract

According to the technical scheme, the roller bed conveying line tray locking device for the laser cutting machine is characterized in that the roller bed conveying line tray locking device comprises a plurality of locking mechanisms and a tray, each locking mechanism comprises a shell, a motor is fixedly connected into each shell, each motor is connected with a transmission shaft, and each transmission shaft is fixedly connected with a first threaded sleeve in the direction facing a conveying line; the first threaded sleeve is in threaded connection with a first threaded rod, the first threaded rod is fixedly connected with a mounting plate, and the side, away from the shell, of the mounting plate is connected with an ejector rod used for abutting against the side face of the tray. Therefore, friction force is generated to prevent the tray from moving perpendicular to the force application direction, and the tray is prevented from rotating by arranging a plurality of groups of symmetrically arranged locking mechanisms, so that the function of preventing the tray from shaking back and forth during cutting and causing adverse effects on the cutting quality can be realized.

Description

Technical Field

[0001] The utility model relates to a locking device, in particular to a roller bed conveyor line pallet locking device for a laser cutting machine. Background Art

[0002] As the degree of automation in the laser gas cutting machine industry becomes higher and higher, roller bed conveyor lines are increasingly integrated into laser cutting machine equipment because roller bed conveyor lines can better connect front and rear workstations and improve production efficiency. Roller bed conveyor lines are generally driven by motors to drive the sprocket chain to rotate the rollers, thereby driving the pallet to move forward and backward. When it reaches the specified position, the motor stops working and the cutting machine starts to cut the plate on the pallet. Due to the characteristics of the chain, when the motor stops working, the pallet cannot be completely still on the roller bed. If the pallet is subjected to force in the forward and backward movement direction during cutting, it may shake back and forth and have an adverse effect on the cutting quality. Therefore, a roller bed conveyor pallet locking device for laser cutting machines is required, which can prevent the pallet from shaking back and forth during cutting and causing adverse effects on the cutting quality.

[0003] In view of the above reasons, how to prevent the tray from shaking back and forth during cutting is exactly the problem considered in this application. Utility Model Content

[0004] In view of the shortcomings of the prior art, a pallet locking device for a roller bed conveyor line of a laser cutting machine is provided, which can prevent the pallet from shaking back and forth during cutting and causing adverse effects on the cutting quality.

[0005] To achieve the above-mentioned purpose, the following technical scheme is provided: a first embodiment of a pallet locking device for a roller bed conveyor line for a laser cutting machine, comprising a plurality of locking mechanisms arranged on both sides of the conveyor line and a pallet placed on the conveyor line, the locking mechanism comprising a shell, a motor is fixedly connected inside the shell, the motor is connected to a transmission shaft, a first threaded sleeve is fixedly connected to the transmission shaft toward the conveyor line direction, a first threaded rod is threadedly connected to the first threaded sleeve, a mounting plate is fixedly connected to the first threaded rod, a first limiting column slidably connected to the shell is fixedly connected to the mounting plate toward the side of the shell, a top rod for contacting the side of the pallet is connected to the mounting plate away from the shell, the locking mechanisms arranged on both sides of the conveyor line are arranged in groups of two and are symmetrically arranged, and at least two groups are provided.

[0006] In summary, the above technical solution has the following beneficial effects: by applying two forces of equal magnitude and opposite directions in the same horizontal direction on the left and right sides of the tray, the friction force can be used to prevent the tray from moving forward and backward, thereby achieving the locking function. Therefore, a symmetrically arranged locking mechanism is provided. In addition, in order to prevent the tray from moving in the vertical direction, at least two sets of symmetrically arranged locking mechanisms need to be provided.

[0007] The motor drives the first threaded sleeve in the housing to rotate through the transmission shaft. The first threaded rod threadedly connected to the first threaded sleeve is fixedly connected to the mounting plate, and the mounting plate is fixedly connected to the first limiting column slidably connected to the housing. Therefore, the rotation of the first threaded rod will be blocked by the first limiting column, so that only horizontal movement can be generated, forming a structure similar to a screw slider, so that the rotation of the first threaded sleeve drives the movement of the first threaded rod. In order to increase friction and facilitate subsequent maintenance, a replaceable top rod is provided to resist the tray;

[0008] The utility model applies pressure to the pallet by moving the top rod of the locking mechanism, and the applied pressures are in pairs and in opposite directions, thereby generating friction to prevent the pallet from moving perpendicular to the direction of the force applied, and preventing the pallet from rotating by arranging multiple groups of symmetrically arranged locking mechanisms, thereby achieving the function of preventing the pallet from shaking back and forth during cutting and causing adverse effects on the cutting quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a three-dimensional structural schematic diagram of a roller bed conveyor line pallet locking device for a laser cutting machine;

[0010] Figure 2 is a cross-sectional view of the locking mechanism;

[0011] Figure 3 2 is a side view of a tray in the second embodiment.

[0012] Reference numerals: 1, locking mechanism; 2, tray; 3, housing; 4, motor; 5, transmission shaft; 6, first threaded sleeve; 7, bracket; 8, protective shell;

[0013] 21. through groove; 22. first gentle slope; 23. second gentle slope;

[0014] 31. The second limiting column;

[0015] 51. first bevel gear; 52. second bevel gear; 53. second threaded rod; 54. second threaded sleeve;

[0016] 541, third threaded rod; 542, third limiting column; 543, third threaded sleeve; 544, toggle member;

[0017] 61. first threaded rod; 62. mounting plate; 63. first limiting column; 64. ejector rod;

[0018] 641. Extension rod; 642. Elastic member; 643. Roller. DETAILED DESCRIPTION

[0019] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. The same parts are represented by the same reference numerals. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to directions in the accompanying drawings, and the words "bottom surface" and "top surface", "inside" and "outside" refer to directions toward or away from the geometric center of a specific component, respectively.

[0020] Reference Figure 1-2 As shown, a first embodiment of a pallet locking device for a roller bed conveyor line for a laser cutting machine comprises a plurality of locking mechanisms 1 arranged on both sides of the conveyor line and a pallet 2 placed on the conveyor line, the locking mechanism 1 comprises a shell 3, a motor 4 is fixedly connected inside the shell 3, the motor 4 is connected to a transmission shaft 5, a first threaded sleeve 6 is fixedly connected to the transmission shaft 5 in the direction of the conveyor line, the first threaded sleeve 6 is threadedly connected to a first threaded rod 61, the first threaded rod 61 is fixedly connected to a mounting plate 62, the mounting plate 62 is fixedly connected to a first limiting column 63 slidably connected to the shell 3 on the side facing the shell 3, the mounting plate 62 is connected to a push rod 64 for contacting the side of the pallet 2 on the side away from the shell 3, the locking mechanisms 1 arranged on both sides of the conveyor line are arranged in groups of two and are symmetrically arranged, and at least two groups are provided;

[0021] By applying two forces of the same magnitude and opposite directions in the same horizontal direction on the left and right sides of the tray 2, the tray 2 can be prevented from moving forward and backward by friction, thereby achieving the locking function. Therefore, a symmetrically arranged locking mechanism 1 is provided. In addition, in order to prevent the tray 2 from moving in the vertical direction, at least two sets of symmetrically arranged locking mechanisms 1 need to be provided.

[0022] The motor 4 drives the first threaded sleeve 6 in the housing 3 to rotate through the transmission shaft 5. The first threaded rod 61 threadedly connected to the first threaded sleeve 6 is fixedly connected to the mounting plate 62, and the mounting plate 62 is fixedly connected to the first limiting column 63 slidably connected to the housing 3. Therefore, the rotation of the first threaded rod 61 will be blocked by the first limiting column 63, so that only horizontal movement can be generated, forming a structure similar to a screw slider, so that the rotation of the first threaded sleeve 6 drives the movement of the first threaded rod 61. In order to increase friction and facilitate subsequent maintenance, a replaceable top rod 64 is provided to resist the tray 2;

[0023] The utility model applies pressure to the tray 2 by moving the top rod 64 of the locking mechanism 1. The applied pressures are in pairs and in opposite directions, thereby generating friction to prevent the tray 2 from moving perpendicular to the direction of the force applied. The tray 2 is prevented from rotating by setting up multiple groups of symmetrically arranged locking mechanisms 1, thereby preventing the tray 2 from shaking back and forth during cutting and causing adverse effects on the cutting quality.

[0024] Furthermore, a through slot 21 is provided on the side of the tray 2 facing the push rod 64, and when the conveyor line drives the tray 2 to move to the locking mechanism 1, the push rod 64 is accommodated in the through slot 21;

[0025] The through groove 21 can prevent debris generated during laser cutting from falling and sticking to the ejector rod 64 , causing the ejector rod 64 to slip the next time it contacts the inner wall of the through groove 21 .

[0026] Further, the housing 3 is fixedly connected to the bracket 7, the transmission shaft 5 is also fixedly connected to the first bevel gear 51, the first bevel gear 51 is meshedly connected to the second bevel gear 52, the second bevel gear 52 is fixedly connected to a second threaded rod 53 that is rotatably connected to the housing 3 and extends toward the bracket 7, the second threaded rod 53 is threadedly connected to a second threaded sleeve 54 provided in the bracket 7, and the housing 3 is also fixedly connected to a second limiting column 31 that is slidably connected to the second threaded sleeve 54;

[0027] When the motor 4 drives the transmission shaft 5 to rotate, it will also drive the first bevel gear 51 to rotate, and then drive the second threaded rod 53 to rotate through the second bevel gear 52 meshing with the first bevel gear 51, and the second threaded sleeve 54 threadedly connected to the second threaded rod 53 is arranged in the bracket 7, so the second threaded sleeve 54 will not rotate, and the shell 3 will not rotate under the action of the second limit column 31. Therefore, the shell 3 can be lifted by the rotating second threaded rod 53. At this time, when the push rod 64 is accommodated in the through groove 21, the push rod 64 mostly contacts the inner wall of the through groove 21 to drive the tray 2 to move up. In this way, during actual operation, the tray 2 can be lifted away from the conveyor line, and the tray 2 and the conveyor line can be prevented from affecting each other during the cutting operation.

[0028] Further, the second threaded sleeve 54 is slidably connected to the bracket 7, the second threaded sleeve 54 is fixedly connected to a third threaded rod 541 and a third limiting column 542 slidably connected to the bracket 7, the third threaded rod 541 is threadedly connected to a third threaded sleeve 543 rotatably connected to the bracket 7, and the third threaded sleeve 543 is provided with a toggle member 544;

[0029] Due to the restriction of the third limiting column 542, although the second threaded sleeve 54 is slidably connected to the bracket 7, it cannot be driven to rotate by the third threaded rod 541 when the third threaded sleeve 543 rotates. Therefore, the third threaded sleeve 543 can be rotated by the interference toggle member 544, and then the second threaded sleeve 54 can be moved in the vertical direction through the third threaded rod 541.

[0030] Since different specifications of pallets 2 will be used for different cutting operations, and the vertical heights that can be changed by the second threaded rod 53 and the second threaded sleeve 54 are limited, in order to adjust the minimum height and maximum height of vertical movement during actual operation, a third threaded sleeve 543 and a third threaded rod 541 are provided. When in use, the position of the push rod 64 needs to be manually adjusted according to the thickness of the pallet 2 to avoid a situation where the push rod 64 cannot contact the pallet 2.

[0031] Furthermore, the mounting plate 62 is detachably connected to an extension rod 641 detachably connected to the top rod 64;

[0032] Also, since the moving distance of the first threaded rod 61 is limited, in order to adapt to the trays 2 of different widths, it can be replaced with an extension rod 641 of any length to avoid the situation where the top rod 64 cannot contact the tray 2.

[0033] Furthermore, an elastic member 642 is fixedly connected to the side of the top rod 64 facing the tray 2. When the top rod 64 contacts the side of the tray 2, the elastic member 642 can play a buffering role to avoid damage to the tray 2 and displacement of the tray 2 due to excessive impact force. In addition, the elastic member 642 can also deform when contacting the tray 2, making the actual contact surface rougher, increasing friction, and preventing the tray 2 from detaching.

[0034] Furthermore, the top rod 64 is also rotatably connected to a roller 643, which is disposed on a side of the elastic member 642 away from the through slot 21, and the outer diameter of the roller 643 is larger than the outer diameter of the elastic member 642. When the conveyor line drives the tray 2 to move to the locking mechanism 1, the roller 643 abuts against the inner wall of the through slot 21;

[0035] Since the outer diameter of the roller 643 is larger than the outer diameter of the elastic member 642, when the top rod 64 is accommodated in the through slot 21, the roller 643 can prevent the upper and lower inner walls of the through slot 21 from directly rubbing against the elastic member 642 and damaging the elastic member 642. When the tray 2 is moved by the conveyor line, the roller 643 can reduce friction by rolling, thereby preventing the tray 2 from being unable to move due to excessive friction.

[0036] Furthermore, the bracket 7 is also fixedly connected with a protective shell 8, so as to prevent the debris generated by the laser cutting operation from falling into the bracket 7, thereby hindering the movement of the second threaded rod 53 and other components.

[0037] Further, such as Figure 3 The second embodiment shown is different from the first embodiment in that the upper inner walls at both ends of the through groove 21 are provided with a first gentle slope 22 that is convex upwards;

[0038] The lower inner walls at both ends of the through groove 21 are provided with a second gentle slope 23 which is concave downwards, and the lowest point of the second gentle slope 23 and the highest point of the first gentle slope 22 are arranged in the same vertical direction;

[0039] When the push rod 64 drives the tray 2 to move upward, the roller 643 abuts against the inner wall of the inner wall of the through groove 21. Due to the gentle slope of the upward concave shape, the roller 643 will be in the center of the concave shape by rolling, so that the center of the tray 2 when being lifted can be automatically adjusted, thereby enhancing the stability of the tray 2 when being lifted;

[0040] When the tray 2 moves downward and contacts the conveyor line, the tray 2 will inevitably move slightly in the vertical direction. If the roller 643 hits the inner wall of the lower end of the through groove 21 at this time, a large vibration will be generated, which may not only cause the tray 2 to move, but also cause the workpiece to fall off. Therefore, a second gentle slope 23 with a downward concave shape is provided to provide a buffer space for the roller 643 to prevent the roller 643 from directly hitting the inner wall of the lower end of the through groove 21.

[0041] The above is only a preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A roller bed conveyor line pallet locking device for a laser cutting machine, characterized in that: The invention comprises a plurality of locking mechanisms (1) arranged on both sides of a conveyor line and a tray (2) placed on the conveyor line, wherein the locking mechanism (1) comprises a shell (3), a motor (4) is fixedly connected inside the shell (3), the motor (4) is connected to a transmission shaft (5), the transmission shaft (5) is fixedly connected to a first threaded sleeve (6) in the direction of the conveyor line, the first threaded sleeve (6) is threadedly connected to a first threaded rod (61), the first threaded rod (61) is fixedly connected to a mounting plate (62), the mounting plate (62) is fixedly connected to a first limiting column (63) slidably connected to the shell (3) on the side facing the shell (3), the mounting plate (62) is connected to a push rod (64) for contacting the side of the tray (2) on the side away from the shell (3), the locking mechanisms (1) arranged on both sides of the conveyor line are arranged in groups of two and are symmetrically arranged, and at least two groups are provided.

2. The roller bed conveyor line pallet locking device for a laser cutting machine according to claim 1 is characterized in that: The tray (2) is provided with a through slot (21) on one side facing the top rod (64); When the conveyor line drives the tray (2) to move to the locking mechanism (1), the push rod (64) is accommodated in the through groove (21).

3. The roller bed conveyor line pallet locking device for a laser cutting machine according to claim 2 is characterized in that: The housing (3) is fixedly connected to a bracket (7); the transmission shaft (5) is also fixedly connected to a first bevel gear (51); the first bevel gear (51) is meshingly connected to a second bevel gear (52); the second bevel gear (52) is fixedly connected to a second threaded rod (53) rotatably connected to the housing (3) and extending toward the bracket (7); the second threaded rod (53) is threadedly connected to a second threaded sleeve (54) disposed in the bracket (7); and the housing (3) is also fixedly connected to a second limiting column (31) slidably connected to the second threaded sleeve (54).

4. The roller bed conveyor line pallet locking device for a laser cutting machine according to claim 3 is characterized in that: The second threaded sleeve (54) is slidably connected to the bracket (7); the second threaded sleeve (54) is fixedly connected to a third threaded rod (541) and a third limiting column (542) slidably connected to the bracket (7); the third threaded rod (541) is threadedly connected to a third threaded sleeve (543) rotatably connected to the bracket (7); and the third threaded sleeve (543) is provided with a toggle member (544).

5. The pallet locking device for a roller bed conveyor line for a laser cutting machine according to claim 2, characterized in that: The mounting plate (62) is detachably connected to an extension rod (641) which is detachably connected to the top rod (64).

6. The pallet locking device for a roller bed conveyor line for a laser cutting machine according to claim 5 is characterized in that: The top rod (64) is fixedly connected to a side of the tray (2) with an elastic member (642).

7. The pallet locking device for a roller bed conveyor line for a laser cutting machine according to claim 6 is characterized in that: The push rod (64) is also rotatably connected to a roller (643), the roller (643) being arranged on a side of the elastic member (642) away from the through slot (21), and the outer diameter of the roller (643) being larger than the outer diameter of the elastic member (642); When the conveyor line drives the tray (2) to move to the locking mechanism (1), the roller (643) abuts against the inner wall of the through slot (21).

8. The roller bed conveyor line pallet locking device for a laser cutting machine according to claim 3 is characterized in that: The bracket (7) is also fixedly connected to a protective shell (8).

9. The roller bed conveyor line pallet locking device for a laser cutting machine according to claim 2, characterized in that: The upper inner walls at both ends of the through groove (21) are provided with a first gentle slope (22) in an upward convex shape.

10. The roller bed conveyor line pallet locking device for a laser cutting machine according to claim 9, characterized in that: The lower inner walls at both ends of the through groove (21) are provided with a second gentle slope (23) in a downwardly concave shape, and the lowest point of the second gentle slope (23) and the highest point of the first gentle slope (22) are arranged in the same vertical direction.

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