Stroke amplification mechanism and laser drilling machine

Abstract

The utility model belongs to the technical field of manipulator conveying, and particularly relates to a stroke amplification mechanism and a laser drilling machine. The stroke amplification mechanism comprises a base plate, a first driving assembly, a first moving plate, a second driving assembly and a second moving plate. The first moving plate is slidably connected to the base plate through a first driving assembly, and the first driving assembly is used for driving the first moving plate to move in the first direction; a second driving assembly is arranged on the first moving plate, the second moving plate is slidably connected to the first moving plate through the second driving assembly, the second driving assembly is used for driving the second moving plate to move in the first direction, and the first moving plate and the second moving plate can move independently. The second driving assembly and the second moving plate are overlaid on the basis of the first moving plate, so that the manipulator can continue to move and extend out on the basis of the original stroke, and the stroke requirement is met.

Description

Technical Field

[0001] The utility model belongs to the technical field of manipulator conveying, in particular to a stroke amplification mechanism and a laser drilling machine. Background Art

[0002] Current laser drilling machines are usually equipped with a fully automatic loading and unloading system. After the manual / AGV pushes the material bin into the equipment, the laser drilling machine starts automatic processing.

[0003] When the fully automatic loading and unloading system docks the semi-finished / finished PCB products with the main platform of the laser drilling machine, it needs to be completed by a suspended robot that can move laterally.

[0004] However, when the distance between the robot and the host platform of the laser drilling machine increases, the robot's stroke is insufficient to meet the stroke requirements and cannot be extended further to dock the PCB. Utility Model Content

[0005] The technical problem to be solved by the utility model is: to provide a stroke amplification mechanism and a laser drilling machine in view of the problem that the stroke of the existing manipulator is insufficient.

[0006] In order to solve the above technical problems, on the one hand, the embodiment of the utility model provides a stroke amplification mechanism, including a base plate, a first driving assembly, a first moving plate, a second driving assembly and a second moving plate;

[0007] The first movable plate is slidably connected to the base plate via the first driving assembly, and the first driving assembly is used to drive the first movable plate to move in a first direction;

[0008] The first movable plate is provided with the second driving assembly, the second movable plate is slidably connected to the first movable plate through the second driving assembly, and the second driving assembly is used for driving the second movable plate to move in the first direction.

[0009] Optionally, the first driving assembly includes a motor, a screw and a screw nut, the motor and the screw are mounted on the base plate, the output end of the motor is connected to the screw, and the screw nut is threadedly connected to the outside of the screw and connected to the first movable plate.

[0010] Optionally, the second driving assembly includes a cylinder and a cylinder connecting plate, the cylinder is mounted on the first movable plate, and the cylinder connecting plate is connected between the output end of the cylinder and the second movable plate.

[0011] Optionally, the cylinder is a slow cylinder.

[0012] Optionally, the stroke amplification mechanism also includes a first detector and a second detector, the first detector is installed on the cylinder, and the first detector is used to detect whether the cylinder is retracted into place; the second detector is installed on the first movable plate, and the second detector is used to detect whether the cylinder is extended into place.

[0013] Optionally, the first detector is a magnetic switch, the second detector is an inductive proximity switch, and the second movable plate is provided with a first inductive sheet for cooperating with the inductive proximity switch.

[0014] Optionally, a zero point switch, a positive limit switch and a negative limit switch are provided on the substrate, the zero point switch, the positive limit switch and the negative limit switch are mounted on the substrate, and the zero point switch is located between the positive limit switch and the negative limit switch;

[0015] A second sensing sheet is provided on the first movable plate, and the second sensing sheet can trigger the zero point switch to detect the zero point position of the first movable plate; the second sensing sheet can trigger the positive limit switch to detect the positive limit position of the first movable plate; the second sensing sheet can trigger the negative limit switch to detect the negative limit position of the first movable plate.

[0016] Optionally, it further includes a first slide rail and a first slider slidably connected to the first slide rail, the first slide rail is installed on the base plate, and the first slider is installed on the first movable plate.

[0017] Optionally, it also includes a second slide rail, a second slider and a pad, the second slide rail and the second slider are slidably connected, the second slide rail is installed on the first movable plate, the pad connects the second slider and the second movable plate, and the pad is used to increase the distance between the first movable plate and the second movable plate.

[0018] On the other hand, an embodiment of the utility model provides a laser drilling machine, including a manipulator and a stroke amplification mechanism as described above, wherein the manipulator is mounted on the second movable plate.

[0019] The stroke amplification mechanism provided by the embodiment of the utility model superimposes a second drive component and a second movable plate on the basis of the first movable plate. When the manipulator moves, the first drive component drives the first movable plate to slide, and the second movable plate connected to the first movable plate moves synchronously. Then, the second drive component drives the second movable plate to move relative to the first movable plate, so that the manipulator can continue to move and extend on the basis of the original stroke, which is equivalent to a relay form, thereby increasing the movement stroke of the manipulator and meeting the stroke requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of a stroke amplification mechanism provided by an embodiment of the utility model;

[0021] Figure 2 It is an exploded view of a stroke amplification mechanism provided by an embodiment of the utility model;

[0022] Figure 3 yes Figure 2 The enlarged schematic diagram of point A in the middle;

[0023] Figure 4 It is a schematic diagram of the cooperation between the first movable plate and the cylinder provided in one embodiment of the utility model.

[0024] The reference numerals in the specification are as follows:

[0025] 1. Base plate; 11. Zero point switch; 12. Positive limit switch; 13. Negative limit switch;

[0026] 2. First drive assembly; 21. Motor; 22. Screw rod; 23. Synchronous belt transmission assembly; 231. Driving wheel; 232. Passive wheel;

[0027] 3. First moving plate; 31. Second sensing plate;

[0028] 4. Second driving assembly; 41. Cylinder; 42. Cylinder connecting plate; 43. First detector; 44. Second detector; 45. First sensing sheet;

[0029] 5. Second moving plate;

[0030] 61. first slide rail; 62. first slide block;

[0031] 71. second slide rail; 72. second slide block; 73. pad;

[0032] 8. Robotic arm. DETAILED DESCRIPTION

[0033] In order to make the technical problems, technical solutions and beneficial effects solved by the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0034] like Figures 1 to 4As shown, on the one hand, a stroke amplification mechanism provided by an embodiment of the utility model includes a base plate 1, a first drive assembly 2, a first movable plate 3, a second drive assembly 4 and a second movable plate 5. The first movable plate 3 is slidably connected to the base plate 1 through the first drive assembly 2, and the first drive assembly 2 is used to drive the first movable plate 3 to move in the first direction. The first movable plate 3 is provided with a second drive assembly 4, and the second movable plate 5 is slidably connected to the first movable plate 3 through the second drive assembly 4, and the second drive assembly 4 is used to drive the second movable plate 5 to move in the first direction, and the first movable plate 3 and the second movable plate 5 can move independently.

[0035] Among them, the side of the second movable plate 5 close to the substrate 1 is slidably connected to the first movable plate 3, and the side of the second movable plate 5 away from the substrate 1 is suitable for installing a robot 8. The first driving component 2 can drive the first movable plate 3 to move and drive the second movable plate 5 to move, so that the first movable plate 3 can slide relative to the substrate 1, and drive the second driving component 4 and the second movable plate 5 to reciprocate between the zero point and the first position to complete the first stroke.

[0036] The second driving assembly 4 is mounted on the first moving plate 3, and the output end of the second driving assembly 4 is connected to the second moving plate 5, which can drive the second moving plate 5 to reciprocate between the first position and the second position relative to the first moving plate 3 to complete the second stroke. The first position is between the zero point and the second position, which is equivalent to increasing the stroke on the basis of the first stroke, and finally achieving the effect of increasing the total stroke. The zero point of the second stroke is the first position at the end point of the first stroke.

[0037] The stroke amplification mechanism provided by the embodiment of the utility model superimposes the second drive component 4 and the second movable plate 5 on the basis of the first movable plate 3. When the stroke of the manipulator 8 is not enough, the first drive component 2 drives the first movable plate 3 to slide, and the second movable plate 5 connected to the first movable plate 3 moves synchronously. Then, the second drive component 4 drives the second movable plate 5 to move relative to the first movable plate 3, so that the manipulator 8 can continue to move and extend on the basis of the original stroke, which is equivalent to a relay form, thereby increasing the movement stroke of the manipulator 8 and meeting the stroke requirements.

[0038] In one embodiment, the stroke amplification mechanism is applied to the retractable trigger of the laser drilling machine, and the movement direction of the first movable plate 3 is the same as the movement direction of the second movable plate 5, both of which move in the first direction. When the manipulator 8 moves horizontally to pick up and unload materials, the first drive component 2 can drive the first movable plate 3 to move horizontally, and the second drive component 4 drives the second movable plate 5 to move horizontally, thereby solving the problem of insufficient horizontal extension stroke of the manipulator 8.

[0039] In one embodiment, the first driving assembly 2 includes a motor 21, a screw 22 and a screw nut, the motor 21 and the screw 22 are mounted on the base plate 1, the first moving plate 3 is slidably connected to the base plate 1, the output end of the motor 21 is connected to the screw 22, and the screw nut is threadedly connected to the outside of the screw 22 and connected to the first moving plate 3. The motor 21 can drive the screw 22 to rotate, and drive the screw nut to move along the extension direction of the screw 22, so that the first moving plate 3 can slide relative to the base plate 1, and drive the second driving assembly 4 and the second moving plate 5 to move with the first moving plate 3.

[0040] In one embodiment, both ends of the screw rod 22 are mounted on the base plate 1 through a fixing seat, and both ends of the screw rod 22 are supported by the fixing seat. The middle part of the screw rod 22 has a sinking amount. When the length of the screw rod 22 is large, it may cause the end face runout value of the screw nut to be large, and the screw nut movement is unstable. In this embodiment, when there is no need to increase the screw rod 22, the second drive assembly 4 and the second moving plate 5 are superimposed on the first moving plate 3, and the second moving plate 5 is driven by the cylinder 41 to continue to move for a period of time to meet the stroke requirement. There is no need to consider the slenderness ratio of the screw rod 22, and the problems of more difficult assembly and more unstable operation caused by a longer screw rod 22 are avoided.

[0041] In one embodiment, the first drive component 2 also includes a synchronous belt transmission component 23, which is connected between the output end of the motor 21 and one end of the screw rod 22. The synchronous belt transmission component 23 includes a driving wheel 231, a synchronous belt and a passive wheel 232. The driving wheel 231 is installed on the output end of the motor, and the passive wheel 232 is installed on the screw rod 22. The synchronous belt surrounds the driving wheel 231 and the passive wheel 232. The motor 21 can drive the driving wheel 231 to rotate, and the screw rod 22 can be driven to rotate through the synchronous belt and the passive wheel 232, so that the screw nut moves back and forth along the screw rod 22, thereby driving the first movable plate 3 to move along the extension direction of the screw rod 22, and the second movable plate 5 installed on the first movable plate 3 will move therewith.

[0042] In one embodiment, the second driving assembly 4 includes a cylinder 41 and a cylinder connecting plate 42. The cylinder 41 is installed on the first movable plate 3. The cylinder connecting plate 42 is connected between the output end of the cylinder 41 and the second movable plate 5. The connection between the cylinder 41 and the second movable plate 5 is achieved through the cylinder connecting plate 42, so that the output end of the cylinder 41 can drive the second movable plate 5 to move.

[0043] In one embodiment, the stroke amplification mechanism further includes a first detector 43 and a second detector 44. In the moving direction of the first movable plate 3, the first detector 43 is arranged at the retracted end of the cylinder 41, and the second detector 44 is arranged at the extended end of the cylinder 41. The first detector 43 is installed on the cylinder 41, and the first detector 43 is used to detect whether the cylinder 41 is retracted into place. The second detector 44 is installed on the first movable plate 3, and the second detector 44 is used to detect whether the cylinder 41 is extended into place. After the cylinder 41 is extended into place, it indicates that the manipulator 8 has moved horizontally into place, and the manipulator 8 is ready to perform the next step. The state of the cylinder 41 is judged by the first detector 43 and the second detector 44. Except for the action of the manipulator 8 taking / putting the plate, the cylinder 41 is in the retracted state in the rest of the action process.

[0044] In one embodiment, the first detector 43 is a magnetic switch, which is disposed on the cylinder 41 and can indicate whether the piston rod of the cylinder 41 is retracted into place. The magnetic switch is provided with an indicator light to facilitate judgment by the operator.

[0045] In other alternative embodiments, the first detector 43 may also be an inductive proximity switch.

[0046] In one embodiment, the second detector 44 is an inductive proximity switch, which can avoid the situation that the second movable plate 5 blocks the magnetic switch during movement and cannot be adjusted when a magnetic switch is selected. The second movable plate 5 is provided with a first sensing sheet 45 for cooperating with the inductive proximity switch. The first sensing sheet 45 moves with the second movable plate 5. As the cylinder 41 drives the second movable plate 5 to move, the first sensing sheet 45 gradually approaches the inductive proximity switch. When the inductive proximity switch senses the first sensing sheet 45, it indicates that the telescopic rod of the cylinder 41 is extended to the position and the manipulator 8 moves to the position.

[0047] In one embodiment, the stroke amplification mechanism further includes a zero switch 11, a positive limit switch 12, a negative limit switch 13, and a second induction sheet 31. The zero switch 11, the positive limit switch 12, and the negative limit switch 13 are mounted on the substrate 1, the zero switch 11 is located between the positive limit switch 12 and the negative limit switch 13, and the second induction sheet 31 is mounted on the first movable plate 3 and can move with the first movable plate 3. The second induction sheet 31 can trigger the zero switch 11 to detect the zero position of the first movable plate 3, the second induction sheet 31 can trigger the positive limit switch 12 to detect the positive limit position of the first movable plate 3, and the second induction sheet 31 can trigger the negative limit switch 13 to detect the negative limit position of the first movable plate 3.

[0048] When the zero point switch 11 senses the second sensing plate 31, it indicates that the first movable plate 3 returns to the zero point position. When the positive limit switch 12 senses the second sensing plate 31, it indicates that the first movable plate 3 moves to the positive limit position. When the negative limit switch 13 senses the second sensing plate 31, it indicates that the first movable plate 3 moves to the negative limit position. The positive limit switch 12 and the negative limit switch 13 can limit the moving range of the first movable plate 3 to avoid exceeding the range and causing the robot 8 to collide with other parts of the laser drilling machine.

[0049] In one embodiment, the stroke amplification mechanism also includes a first slide rail 61 and a first slider 62 slidably connected to the first slide rail 61. The first slide rail 61 is installed on the substrate 1, and the first slider 62 is installed on the first movable plate 3. Through the sliding connection between the first slide rail 61 and the first slider 62, the first movable plate 3 can slide relative to the substrate 1 under the drive of the motor 21.

[0050] There are two first slide rails 61 , and the two first slide rails 61 are located on both sides of the screw rod 22 . Each first slide rail 61 is provided with at least one first sliding block 62 , so that the first movable plate 3 runs more smoothly.

[0051] In one embodiment, the cylinder 41 is a slow cylinder, which can enable the second movable plate 5 to drive the manipulator 8 to extend slowly, thereby avoiding side impact on the first slide rail 61 .

[0052] In one embodiment, the stroke amplification mechanism further includes a second slide rail 71, a second slider 72 and a pad 73, the second slide rail 71 and the second slider 72 are slidably connected, the second slide rail 71 is installed on the first movable plate 3, and the pad 73 connects the second slider 72 and the second movable plate 5. Through the sliding connection between the second slide rail 71 and the second slider 72, the second movable plate 5 can slide relative to the first movable plate 3 under the drive of the cylinder 41.

[0053] By installing the pad 73 on the second slider 72 , the distance between the first movable plate 3 and the second movable plate 5 can be increased, which facilitates the installation of the cylinder 41 and avoids interference between the cylinder 41 and the second movable plate 5 .

[0054] On the other hand, an embodiment of the utility model provides a laser drilling machine, including a manipulator 8 and the stroke amplification mechanism of the above embodiment, wherein the manipulator 8 is mounted on the second movable plate 5 .

[0055] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A stroke amplification mechanism, characterized in that: It includes a base plate, a first driving assembly, a first moving plate, a second driving assembly and a second moving plate; The first movable plate is slidably connected to the base plate via the first driving assembly, and the first driving assembly is used to drive the first movable plate to move in a first direction; The first movable plate is provided with the second driving assembly, the second movable plate is slidably connected to the first movable plate through the second driving assembly, and the second driving assembly is used for driving the second movable plate to move in the first direction.

2. The stroke amplification mechanism according to claim 1, characterized in that: The first driving assembly includes a motor, a lead screw and a lead screw nut. The motor and the lead screw are mounted on the base plate. The output end of the motor is connected to the lead screw. The lead screw nut is threadedly connected to the outside of the lead screw and is connected to the first moving plate.

3. The stroke amplification mechanism according to claim 1, characterized in that: The second driving assembly includes a cylinder and a cylinder connecting plate. The cylinder is mounted on the first moving plate, and the cylinder connecting plate is connected between the output end of the cylinder and the second moving plate.

4. The stroke amplification mechanism according to claim 3, characterized in that: The cylinder is a slow cylinder.

5. The stroke extension mechanism according to claim 3, characterized in that: It also includes a first detector and a second detector. The first detector is installed on the cylinder and is used to detect whether the cylinder is retracted into place; the second detector is installed on the first movable plate and is used to detect whether the cylinder is extended into place.

6. The stroke extension mechanism according to claim 5, characterized in that: The first detector is a magnetic switch, the second detector is an inductive proximity switch, and the second movable plate is provided with a first inductive sheet for cooperating with the inductive proximity switch.

7. The stroke amplification mechanism according to claim 1, characterized in that: A zero point switch, a positive limit switch and a negative limit switch are arranged on the substrate, and the zero point switch is located between the positive limit switch and the negative limit switch; A second sensing sheet is provided on the first movable plate, and the second sensing sheet can trigger the zero point switch to detect the zero point position of the first movable plate; the second sensing sheet can trigger the positive limit switch to detect the positive limit position of the first movable plate; the second sensing sheet can trigger the negative limit switch to detect the negative limit position of the first movable plate.

8. The stroke amplification mechanism according to claim 1, characterized in that: It also includes a first slide rail and a first slider slidably connected to the first slide rail, the first slide rail is installed on the base plate, and the first slider is installed on the first movable plate.

9. The stroke amplification mechanism according to claim 1, characterized in that: It also includes a second slide rail, a second slider and a pad, the second slide rail and the second slider are slidably connected, the second slide rail is installed on the first movable plate, the pad is connected between the second slider and the second movable plate, and the pad is used to increase the distance between the first movable plate and the second movable plate.

10. A laser drilling machine, characterized in that: It comprises a manipulator and a stroke amplification mechanism as described in any one of claims 1 to 9, wherein the manipulator is mounted on the second movable plate.

Images