Automatic feeding device and automatic grinding machine

Abstract

The present invention discloses an automatic feeding device in a grinding machine, which is provided with a plurality of suction cups, and can suck and place a plurality of workpieces to a third station through the plurality of suction cups each time, and then a second conveying mechanism conveys the plurality of workpieces on the third station to a grinding tool for grinding processing, and at the same time, the present invention makes the feeding rhythm always consistent, and can avoid the situation of material shortage due to the fast and slow feeding rate. The feeding speed of the automatic feeding mechanism in the present invention is fast, and the feeding is stable and reliable.

Description

Technical Field

[0001] The invention relates to an automatic feeding device and an automatic grinding machine. Background Art

[0002] A grinder is a machine tool that uses a grinding tool to grind the surface of a workpiece. Current grinders generally require manual placement of the workpieces one by one on a conveyor belt, which then transports the workpieces one by one to the grinding tool, which grinds the workpieces one by one. As a result, the workpieces need to be placed on the conveyor belt manually, which makes the feed speed of the workpieces slow and cannot meet current production needs. Moreover, manual feeding will result in inconsistent feeding rates, making it difficult to keep a consistent feeding rhythm. As a result, when the feed rate is slow, material shortages may occur. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide an automatic feeding device and an automatic grinding machine, which can make the feeding speed faster and keep the feeding rhythm consistent.

[0004] In order to solve the above technical problems, the present invention provides an automatic feeding device, which comprises:

[0005] A workbench, wherein the workbench is provided with a first station, a second station and a third station, and the first station is used for placing a carrier carrying a workpiece;

[0006] A first conveying mechanism, wherein the first conveying mechanism is used to convey the carrier from the first station to the second station;

[0007] A detection mechanism, the detection mechanism is used to detect whether the carrier on the second station is in place;

[0008] A material picking mechanism, the material picking mechanism comprising a plurality of suction cups and a driving assembly for driving the plurality of suction cups to move back and forth between the second station and the third station, each of the suction cups being used to suck a workpiece on a carrier located at the second station and place it at the third station;

[0009] A control unit, the control unit is used to receive a signal from the detection mechanism and control the material taking mechanism and the first conveying mechanism according to the signal, when there is a carrier on the second station, the material taking mechanism works but the first conveying mechanism does not work, when there is no carrier on the second station, the material taking mechanism does not work but the first conveying mechanism works;

[0010] The second conveying mechanism is used to convey the workpiece on the third station to a mechanism for processing the workpiece.

[0011] Preferably, the automatic feeding device further comprises:

[0012] The stop mechanism is used to stop and position the carrier transported to the second workstation.

[0013] Preferably, the automatic feeding device further comprises:

[0014] The ejection mechanism is used to eject the empty carrier on the second workstation.

[0015] Preferably, the ejection mechanism comprises a cylinder and a blanking plate, the cylinder being used to push the carrier on the second station into the blanking plate, and the blanking plate extending obliquely downward from a first side close to the second station to a second side away from the second station.

[0016] As another preferred solution, the empty carrier can also be pushed out by the picking mechanism. When the empty carrier needs to be pushed out, the control unit controls the picking mechanism to operate so that the suction cup moves to the second station. After the suction cup moves to the second station, the control unit controls the suction cup to move toward the direction close to the unloading plate, so that the picking mechanism pushes the empty carrier into the unloading plate 8.

[0017] Preferably, the stop mechanism is a baffle plate, on which two guide wheels are arranged, and the carrier located at the second station abuts against the rolling surfaces of the baffle plate and the two guide wheels, and the two guide wheels are configured to guide the cylinder to push the carrier at the second station into the blanking plate.

[0018] Preferably, the workbench is provided with a first unloading channel and a second unloading channel, the feed port of the first unloading channel is used to place spare workpieces, the discharge port of the first unloading channel is located above the second conveying mechanism, the second unloading channel is located at the front end of the second conveying mechanism, the second unloading channel is configured to receive the workpiece conveyed by the second conveying mechanism and convey the workpiece to a mechanism for processing the workpiece, the second unloading channel is provided with a sensor for detecting whether there is a workpiece passing through, and the first unloading channel is configured to convey the spare workpiece to the second conveying mechanism when no workpiece passes through the second unloading channel.

[0019] Preferably, the first material discharge channel is arranged obliquely downward from the feed port to the discharge port, and a cylinder is arranged on the discharge port of the first material discharge channel. The cylinder has a first state and a second state. When the cylinder is in the first state, the cylinder closes the discharge port of the first material discharge channel, and when the cylinder is in the second state, the cylinder opens the discharge port of the first material discharge channel.

[0020] In order to solve the above technical problems, the present invention provides an automatic grinding machine, which comprises:

[0021] The automatic feeding device mentioned above;

[0022] A grinding tool, wherein the grinding tool is used for grinding the workpiece conveyed by the automatic feeding device.

[0023] Preferably, the automated grinding machine further comprises:

[0024] The thickness detection mechanism is used to detect the thickness of the polished workpiece.

[0025] Preferably, the thickness detection mechanism comprises:

[0026] A testing platform, wherein the testing platform is used to carry the polished workpiece;

[0027] A capacitive micrometer, the measuring end of which is located above the detection platform and is used to detect the thickness of the polished workpiece;

[0028] An input unit, wherein the input unit is used to set a qualified interval of workpiece thickness;

[0029] The processing unit is used to receive the detection information of the capacitive micrometer and determine whether the thickness of the workpiece is within the qualified range of the workpiece thickness set by the input unit.

[0030] After adopting the above structure, the present invention has the following advantages compared with the prior art: the automatic feeding device in the grinding machine of the present invention is provided with multiple suction cups, and multiple workpieces can be sucked and placed on the third station by the multiple suction cups each time, and then the second conveying mechanism conveys the multiple workpieces on the third station to the grinding tool for grinding. At the same time, the present invention makes the feeding rhythm always consistent, which can avoid the shortage of material due to the fast and slow feeding rate. In this way, the feeding speed of the automatic feeding mechanism in the present invention is faster, and the feeding is smooth and reliable, which can meet the production needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic structural diagram of the grinding machine of the present invention;

[0032] Figure 2 is a structural schematic diagram of the grinding machine of the present invention from another perspective;

[0033] Figure 3 yes Figure 1 Schematic diagram of the structure of the middle B area;

[0034] Figure 4 yes Figure 1 Schematic diagram of the structure of area A in the middle. DETAILED DESCRIPTION

[0035] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0036] Depend on Figure 1 , Figure 2As shown, the automatic grinding machine of this embodiment includes an automatic feeding device, which includes a workbench 1, a first conveying mechanism, a detection mechanism, a material taking mechanism, a control unit, a second conveying mechanism, a stop mechanism and a pushing mechanism.

[0037] The workbench is provided with a first station, a second station and a third station. The first station is used for placing a carrier carrying the workpieces. Preferably, the carrier is a material box, and the workpieces are stacked in an orderly manner and placed in the material box.

[0038] The first conveying mechanism is used to convey the carrier from the first station to the second station. Preferably, the first conveying mechanism is a first conveyor belt 2, which is driven to rotate by a motor. The carrier is placed on the first conveyor belt 2, and the first conveyor belt 2 can convey the carrier from the first station to the second station when it rotates.

[0039] The detection mechanism is used to detect whether the carrier on the second station is in place. Preferably, the detection mechanism is a micro switch 3, which is arranged on the second station. When the carrier is transported to the second station, the carrier triggers the micro switch 3. Of course, the detection mechanism can also be a proximity switch, a touch switch, etc.

[0040] The material taking mechanism includes a plurality of suction cups 4, which are mounted on a mounting plate, and the mounting plate can drive the plurality of suction cups 4 to move together. The material taking mechanism also includes a driving assembly for driving the plurality of suction cups 4 to move back and forth between the second station and the third station. The driving assembly is a two-axis moving mechanism, and the driving assembly is connected to the mounting plate, such as Figure 1 As shown, the two-axis moving mechanism can drive the mounting plate to move back and forth along the X and Y directions. When the mounting plate moves, it drives multiple suction cups 4 to move synchronously. Each suction cup 4 is connected to a vacuum pump. When the vacuum pump is working, the suction cup 4 can suck the workpiece. When the vacuum pump is not working, the suction cup 4 can put down the sucked workpiece. In this way, when the material picking mechanism is working, the driving component first moves the suction cup 4 to the second station. At this time, the suction cup 4 is located in the carrier and each suction cup 4 is in contact with a workpiece. Then the vacuum pump vacuums the suction cup 4 so that the suction cup 4 sucks the workpiece. Then the driving component moves the suction cup 4 to the third station. Then the vacuum pump stops vacuuming the suction cup 4 so that the suction cup 4 puts down the workpiece. In this way, the workpiece is moved to the third station.

[0041] The control unit is used to receive the signal of the microswitch 3 and control the material picking mechanism and the first conveying mechanism according to the signal. The signal of the microswitch 3 can enable the control unit to know whether there is a carrier on the second station. When there is a carrier on the second station, the material picking mechanism works and the first conveying mechanism does not work. At this time, the material picking mechanism continuously moves the workpiece on the carrier at the second station to the third station. When the workpiece on the carrier at the second station is taken, the pushing mechanism can push out the empty carrier on the second station. At this time, there is no carrier on the second station. When there is no carrier on the second station, the material picking mechanism does not work and the first conveying mechanism works. The first conveying mechanism conveys the carrier with workpieces on the first station to the second station, so that the second station has a carrier again.

[0042] The second conveying mechanism is used to convey the workpiece on the third station to a mechanism for processing the workpiece. Preferably, the second conveying mechanism is a second conveyor belt 5, which is driven by a motor to rotate. After the workpiece is placed on the second conveyor belt 5, the second conveyor belt 5 can convey the workpiece from the third station forward when it rotates, and convey the workpiece to the grinding tool for grinding.

[0043] The stop mechanism is used to stop and position the carrier transported to the second workstation. Preferably, the stop mechanism is a baffle 6, which is fixedly mounted on the workbench 1. When the carrier is transported to the second workstation, the carrier is blocked by the baffle 6 and cannot continue to move forward, thereby positioning the carrier.

[0044] The pushing mechanism is used to push out the empty carrier on the second station. The pushing mechanism includes a cylinder 7 and a blanking plate 8. The cylinder 7 and the blanking plate 8 are respectively located on both sides of the second station. When the carrier is located on the second station, the carrier is located between the cylinder 7 and the blanking plate 8. After the carrier is transported to the second station, the picking mechanism starts to pick up the workpiece on the carrier located at the second station to move the workpiece from the second station to the third station. The number of workpieces on each carrier is fixed, so that the workpieces can be counted when picking up the materials. When the workpieces on the carrier are counted to be taken out, the carrier becomes empty. At this time, the cylinder 7 works, and the piston rod of the cylinder 7 extends forward, so that the cylinder 7 pushes the empty carrier on the second station into the blanking plate 8. The blanking plate 8 is inclined. The blanking plate 8 is obliquely arranged and extends obliquely downward from the first side edge close to the second workstation to the second side edge away from the second workstation, so that after the empty carrier is pushed into the blanking plate 8, the empty carrier slides down along the blanking plate 8, and an end plate 801 extending vertically upward is provided on the second side edge of the blanking plate 8, and the end plate 801 can block the carrier sliding down along the blanking plate 8, so that people can take down the empty carrier, and the empty carrier can be refilled with workpieces. The carrier after being refilled with workpieces can be placed in the first workstation, and a support plate 802 is also provided under the blanking plate 8, one side edge of the support plate 802 is fixedly connected to the blanking plate 8, and the other side edge of the support plate 802 is fixedly connected to the workbench 1, and the support plate 802 can support and fix the blanking plate 8.

[0045] In addition, the empty carrier can also be pushed out by the picking mechanism. When the empty carrier needs to be pushed out, the control unit controls the picking mechanism to operate so that the suction cup moves to the second station. After the suction cup moves to the second station, the control unit controls the suction cup to move toward the direction close to the unloading plate, so that the picking mechanism pushes the empty carrier into the unloading plate 8.

[0046] like Figure 4 As shown, two guide wheels 9 are arranged on the baffle plate 6, and the two guide wheels 9 are arranged horizontally and can rotate. When the carrier is located at the second workstation, the baffle plate 6 on one side of the carrier and the rolling surfaces of the two guide wheels 9 are against each other, and the baffle plate 6 plays a role in stopping the movement of the carrier, and in the process of the cylinder 7 pushing the carrier on the second workstation to enter the blanking plate 8, the carrier drives the two guide wheels 9 to roll, and the two guide wheels 9 play a guiding role in the movement of the carrier, so that the carrier can accurately enter the blanking plate 8.

[0047] The workbench 1 is provided with a first material discharge channel 10 and a second material discharge channel 11. The feed port of the first material discharge channel 10 is used to place spare workpieces. The discharge port of the first material discharge channel 10 is located above the second conveyor belt 5, and the second material discharge channel 11 is located at the front end of the second conveyor belt 5. The workpiece conveyed by the second conveyor belt 5 enters the second material discharge channel 11. The second material discharge channel 11 extends obliquely downward from one end close to the second conveyor belt 5 to the end away from the second conveyor belt 5, so that the workpiece can slide down along the second material discharge channel 11 after entering the second material discharge channel 11. After the workpiece passes through the second material discharge channel 11, it enters the grinder to grind the workpiece. A sensor is provided in the second material discharge channel 11, which can detect whether there is a workpiece passing through the second material discharge channel 11. When the sensor detects that a workpiece passes through the second material discharge channel 11, it indicates that the automatic feeding device of this embodiment is feeding normally, and the push-out mechanism pushes out the empty carrier on the second station, and the first conveying mechanism transports the carrier carrying the workpiece to the second station During the process of moving the carrier on the second station, the carrier is not in place. At this time, the material picking mechanism cannot suck the workpiece to the third station, so that there is no workpiece on the second conveyor belt 5 that can be transported to the second feeding channel 11. At this time, the sensor on the second feeding channel 11 can detect that no workpiece has entered the second feeding channel 11, and the sensor sends a signal to the controller. The controller controls the spare workpiece on the first feeding channel 10 to enter the second conveyor belt 5. At this time, the second conveyor belt 5 can transport the spare workpiece to the second feeding channel 11, and then the spare workpiece can enter the mold through the second feeding channel 11. After the first conveying mechanism transports the carrier carrying the workpiece to the second station, the microswitch 3 can detect that the carrier has arrived at the second station, and the microswitch 3 sends a signal to the controller. The controller controls the first feeding channel 10 to stop transporting the spare workpiece to the second conveyor belt 5. At this time, the material picking mechanism can start to suck the workpiece on the carrier at the second station to the third station, and then the second conveyor belt 5 can transport the workpiece on the third station forward normally.

[0048] Specifically, the structure of the first material discharge channel 10 is as follows: the first material discharge channel 10 is arranged to be inclined downward from the feed port to the discharge port, and a cylinder 1001 is arranged on the discharge port of the first material discharge channel 10, and the cylinder 1001 has a first state and a second state. When the cylinder 1001 is in the first state, the cylinder 1001 closes the discharge port of the first material discharge channel 10. At this time, the spare workpieces in the first material discharge channel 10 cannot fall onto the second conveyor belt 5. When the cylinder 1001 is in the second state, the cylinder 1001 opens the discharge port of the first material discharge channel 10. At this time, the spare workpieces in the first material discharge channel 10 will fall onto the second conveyor belt 5; in this way, by controlling the action of the cylinder 100, it is possible to control whether the first material discharge channel 10 conveys the spare workpieces to the second conveyor belt 5, and the structure is relatively simple.

[0049] The present embodiment also discloses an automated grinding machine, which includes the automatic feeding device as described above, a grinding tool and a thickness detection mechanism. The automatic feeding device conveys the workpieces to the grinding tool one by one. The grinding tool is used to grind the workpieces. The grinded workpieces enter the thickness detection mechanism. The thickness detection mechanism is used to perform thickness detection on the grinded workpieces to detect whether the thickness size of the grinded workpieces is qualified.

[0050] like Figure 3 As shown, the thickness detection mechanism includes a detection platform 12, a capacitive micrometer 13, an input unit and a processing unit. The detection platform 12 is used to carry the polished workpiece. The polished workpiece is transported to the detection platform 12, and the workpieces are pressed against each other one by one. The workpiece at the rear will push the workpiece in the front to move forward, so that the workpiece can move forward on the detection platform 12.

[0051] The measuring end of the capacitive micrometer 13 is located above the detection platform 12. When the workpiece on the detection platform moves forward on the detection platform 12, the workpiece will pass under the measuring end of the capacitive micrometer 13 one by one. When the workpiece passes under the measuring end of the capacitive micrometer 13, the capacitive micrometer 13 performs thickness detection on the workpiece.

[0052] The model of the capacitive grating micrometer 13 is S2000-101.

[0053] The input unit is used to input information for setting the qualified range of workpiece thickness.

[0054] The processing unit is electrically connected to the capacitive micrometer and the input unit respectively. The processing unit receives the detection information of the capacitive micrometer 13 so that the processing unit can obtain the thickness of the workpiece, and then the processing unit determines whether the thickness of the workpiece is within the qualified range of the workpiece thickness set by the input unit.

[0055] The processing unit and the input unit are both located on the control box 14 .

[0056] In addition, a cylinder 16 and a material receiving box 15 are provided on the detection platform 12. The upper end face of the material receiving box 15 is open. The material receiving box 15 is located on the side of the detection platform 12. The upper end face of the material receiving box 15 is flush with the detection platform 12. The cylinder 16 is close to the measuring end of the capacitive micrometer 13. When the piston rod of the cylinder 16 is extended, the workpiece on the detection platform 12 can be pushed into the material receiving box 15. In this way, when the capacitive micrometer 13 detects that the thickness of a workpiece is unqualified, the cylinder 16 can be activated through the automatic control system, and the cylinder 16 can push the unqualified workpiece into the material receiving box 15 to remove the workpiece with unqualified thickness.

[0057] The above is only an example of the preferred application of the present invention, but it cannot be understood as a limitation of the claims. The structure of the present invention can have other changes and is not limited to the above structure. In short, all changes made within the protection scope of the independent claims of the present invention are within the protection scope of the present invention.

Claims

1. An automatic feeding device, characterized in that: It includes: A workbench, wherein the workbench is provided with a first station, a second station and a third station, and the first station is used for placing a carrier carrying a workpiece; A first conveying mechanism, wherein the first conveying mechanism is used to convey the carrier from the first station to the second station; A detection mechanism, the detection mechanism is used to detect whether the carrier on the second station is in place; A material picking mechanism, the material picking mechanism comprising a plurality of suction cups and a driving assembly for driving the plurality of suction cups to move back and forth between the second station and the third station, each of the suction cups being used to suck a workpiece on a carrier located at the second station and place it at the third station; A control unit, the control unit is used to receive a signal from the detection mechanism and control the material taking mechanism and the first conveying mechanism according to the signal, when there is a carrier on the second station, the material taking mechanism works but the first conveying mechanism does not work, when there is no carrier on the second station, the material taking mechanism does not work but the first conveying mechanism works; A second conveying mechanism, the second conveying mechanism is used to convey the workpiece on the third station to a mechanism for processing the workpiece; The workbench is provided with a first material discharge channel and a second material discharge channel, the feed port of the first material discharge channel is used to place the spare workpiece, the discharge port of the first material discharge channel is located above the second conveying mechanism, the second material discharge channel is located at the front end of the second conveying mechanism, the second material discharge channel is configured to receive the workpiece conveyed by the second conveying mechanism and convey the workpiece to a mechanism for processing the workpiece, the second material discharge channel is provided with a sensor for detecting whether there is a workpiece passing through, and the first material discharge channel is configured to convey the spare workpiece to the second conveying mechanism when no workpiece passes through the second material discharge channel; The second conveying mechanism is a second conveyor belt; When the sensor detects that a workpiece passes through the second feeding channel, the automatic feeding device feeds normally, and when the pushing mechanism pushes out the empty carrier on the second station and the first conveying mechanism conveys the carrier carrying the workpiece to the second station, the carrier on the second station is not in place. At this time, the picking mechanism cannot absorb the workpiece to the third station, so that there are no workpieces on the second conveyor belt that can be conveyed to the second feeding channel. At this time, the sensor on the second feeding channel can detect that no workpiece has passed through the second feeding channel, and the sensor sends a signal to the controller. The controller controls the spare workpiece on the first feeding channel to enter the second conveyor belt. At this time, the second conveyor belt can convey the spare workpiece to the second feeding channel.

2. The automatic feeding device according to claim 1, characterized in that: It also includes: The stop mechanism is used to stop and position the carrier transported to the second workstation.

3. The automatic feeding device according to claim 2, characterized in that: It also includes: The ejection mechanism is used to eject the empty carrier on the second workstation.

4. The automatic feeding device according to claim 3, characterized in that: The ejection mechanism includes a cylinder and a blanking plate. The cylinder is used to push the carrier on the second station into the blanking plate. The blanking plate extends obliquely downward from a first side close to the second station to a second side away from the second station.

5. The automatic feeding device according to claim 4, characterized in that: The stop mechanism is a baffle plate, on which two guide wheels are arranged. The carrier at the second station abuts against the rolling surfaces of the baffle plate and the two guide wheels. The two guide wheels are configured to guide the cylinder to push the carrier at the second station into the blanking plate.

6. The automatic feeding device according to claim 1, characterized in that: The first material discharge channel is arranged to be inclined downward from the feed port to the discharge port, and a cylinder is arranged on the discharge port of the first material discharge channel. The cylinder has a first state and a second state. When the cylinder is in the first state, the cylinder closes the discharge port of the first material discharge channel, and when the cylinder is in the second state, the cylinder opens the discharge port of the first material discharge channel.

7. An automated grinding machine, characterized in that: It includes: The automatic feeding device as described in any one of claims 1 to 6 above; A grinding tool, wherein the grinding tool is used for grinding the workpiece conveyed by the automatic feeding device.

8. The automated grinding machine according to claim 7, characterized in that: It also includes: The thickness detection mechanism is used to detect the thickness of the polished workpiece.

9. The automated grinding machine according to claim 8, characterized in that: The thickness detection mechanism comprises: A testing platform, wherein the testing platform is used to carry the polished workpiece; A capacitive micrometer, the measuring end of which is located above the detection platform and is used to detect the thickness of the polished workpiece; An input unit, wherein the input unit is used to set a qualified interval of workpiece thickness; The processing unit is used to receive the detection information of the capacitive micrometer and determine whether the thickness of the workpiece is within the qualified range of the workpiece thickness set by the input unit.

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