Board pushing mechanism and PCB drilling machine

Abstract

The utility model belongs to the technical field of PCB (printed circuit board) processing, and particularly relates to a board pushing mechanism and a PCB drilling machine. The plate pushing mechanism is suitable for the PCB drilling machine, the PCB drilling machine comprises a rack and a main shaft assembly arranged on the rack, the plate pushing mechanism comprises a workbench, a jacking assembly and a shifting rod assembly, the shifting rod assembly is installed on the main shaft assembly, and the workbench is arranged on the rack in a sliding mode in the first direction; the jacking assembly is installed on the workbench and used for jacking the material plate. In the jacking state of the jacking assembly, the shifting rod assembly is suitable for abutting against the edge of the material plate so as to be matched with the workbench to push the material plate out of or push the material plate into the working area of the workbench. According to the plate pushing machine, the plate feeding and discharging process of the material plate is achieved through mutual cooperation of the workbench and the shifting rod assembly, the number of participating workpieces is reduced, the plate pushing machine is simple in structure, use of a large number of synchronous belts and synchronous wheels is avoided, and meanwhile the cost of the drilling machine can be reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of PCB board processing, in particular to a board pushing mechanism and a PCB board drilling machine. Background Art

[0002] The drilling machine has a workbench for placing PCB boards, and a conveying device is arranged on the workbench. The conveying device includes a motor, a synchronous belt and two synchronous wheels. Before the drilling machine drills holes on the PCB board, the PCB board is transported to the processing area by the synchronous belt. After the drilling machine completes the processing, the PCB board is sent out by the synchronous belt. Each PCB board requires two sets of conveying devices to complete the conveying process. Therefore, when the PCB board is conveyed by the motor-synchronous belt conveying method, the number of workpieces involved is large and cumbersome. Especially for multi-axis drilling machines, the number of workbenches is large, and the number of workpieces involved is set in multiples, resulting in a more complicated structure, which results in a higher overall cost of the drilling machine. Utility Model Content

[0003] The technical problem to be solved by the utility model is: in view of the problem that the structure of the existing drilling machine is relatively complicated, a plate pushing mechanism and a PCB board drilling machine are provided.

[0004] In order to solve the above technical problems, on the one hand, the embodiment of the utility model provides a push plate mechanism, which is suitable for a PCB board drilling machine, the PCB board drilling machine comprises a frame and a spindle assembly arranged on the frame, the push plate mechanism comprises a workbench, a lifting assembly and a lever assembly, the lever assembly is mounted on the spindle assembly, and the workbench is slidably arranged on the frame along a first direction;

[0005] The lifting assembly is installed on the workbench and is used to lift the material plate;

[0006] When the lifting assembly is in the lifted state, the lever assembly is adapted to abut against the edge of the sheet material to cooperate with the workbench to push the sheet material out of or into the working area of ​​the workbench.

[0007] Optionally, a lifting mechanism is further included; the lever assembly is liftably disposed on the spindle assembly via the lifting mechanism, and the lifting mechanism is used to drive the lever assembly to rise and fall so as to abut against the edge of the material plate.

[0008] Optionally, the lifting assembly includes a driving member and a support plate, an avoidance groove is provided on the workbench, the driving member is installed on the workbench, and the driving member can drive the support plate to expose the avoidance groove and lift the material plate.

[0009] Optionally, the lifting assembly also includes a connecting shaft installed on the support plate, a mounting seat is provided on the workbench, a guide groove is provided on the mounting seat, one end of the connecting shaft away from the support plate is provided in the guide groove, and the driving member drives the connecting shaft to move along the guide groove so that the support plate exposes the avoidance groove.

[0010] Optionally, an extension direction of the guide groove forms an acute angle with an extension direction of the support plate.

[0011] Optionally, the mounting seat comprises a main body, a first connecting plate and a second connecting plate, the first connecting plate and the second connecting plate are arranged on the main body at intervals, and the supporting plate is arranged between the first connecting plate and the second connecting plate;

[0012] The guide groove includes a first groove arranged on the first connecting plate and a second groove arranged on the second connecting plate, one end of the connecting shaft is connected to the first groove, and the other end of the connecting shaft passes through the supporting plate and is connected to the second groove.

[0013] Optionally, the lifting assembly further includes a mounting plate, a joint and a connecting seat, the driving member is mounted on the workbench via the mounting plate, the connecting seat is mounted on the support plate, and the joint connects the output end of the driving member and the connecting seat.

[0014] Optionally, a connecting groove is provided on the connecting seat, the joint and the connecting seat are connected via a pin shaft, the pin shaft is provided in the connecting groove, and when the driving member drives the supporting plate to move, the pin shaft moves along the connecting groove;

[0015] The moving direction of the driving member is perpendicular to the extending direction of the connecting groove.

[0016] Optionally, the lever assembly includes a push rod bracket, a flange and a push rod connected to the output end of the lifting mechanism, the push rod bracket is mounted on the spindle assembly, and the lifting mechanism is mounted on the push rod bracket through the flange.

[0017] Optionally, the push rod assembly further includes a guide seat mounted on the push rod bracket, the guide seat is provided with a guide channel, and the guide channel is used to guide the push rod when the lifting mechanism drives the push rod to move.

[0018] On the other hand, an embodiment of the utility model provides a PCB board drilling machine, including a frame, a plurality of spindle assemblies and a plurality of push plate mechanisms as described above, wherein the plurality of spindle assemblies are arranged on the frame, and the number of the spindle assemblies corresponds to the number of lifting assemblies of the push plate mechanism or is twice the number of the lifting assemblies.

[0019] Optionally, each of the push plate mechanisms has two lever assemblies which are respectively installed on the left and right sides of the main shaft assembly.

[0020] The push plate mechanism provided by an embodiment of the utility model, when it is necessary to enter the plate, in the jacking state of the jacking assembly, the material plate is placed on the jacking assembly, and the jacking assembly and the material plate are driven to move by the workbench. Since the lever assembly stops the material plate, the relative movement of the material plate and the workbench can be achieved, thereby pushing the material plate into or out of the working area of ​​the workbench, and achieving the entry and exit of the material plate. In the process of the material plate entering and exiting the plate, the workbench and the lever assembly cooperate with each other, the number of workpieces involved is reduced, and the structure is simple, avoiding the use of a large number of synchronous belts and synchronous wheels, and at the same time, the cost of the drilling machine can be reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of a PCB board drilling machine provided by an embodiment of the utility model;

[0022] Figure 2 It is a schematic diagram of a workbench provided by an embodiment of the utility model;

[0023] Figure 3 yes Figure 2 Schematic diagram of the AA section;

[0024] Figure 4 yes Figure 2 Schematic diagram of the cross section along the BB direction;

[0025] Figure 5 yes Figure 4 The enlarged schematic diagram of point A in the middle;

[0026] Figure 6 It is a schematic diagram of a jacking assembly provided in one embodiment of the utility model;

[0027] Figure 7 is another schematic diagram of a jacking assembly provided by an embodiment of the utility model;

[0028] Figure 8 It is a schematic diagram of a lever assembly provided in one embodiment of the utility model.

[0029] The reference numerals in the specification are as follows:

[0030] 1. workbench; 11. avoidance groove; 12. mounting seat; 121. main body; 122. first connecting plate; 123. second connecting plate; 124. guide groove;

[0031] 2. Lifting assembly; 21. Driving member; 22. Support plate; 23. Connecting shaft; 24. Mounting plate; 25. Joint; 26. Connecting seat; 261. Connecting groove; 27. Pin shaft;

[0032] 3. lever assembly; 31. guide seat; 32. push rod; 33. push rod bracket; 34. flange;

[0033] 4. Lifting mechanism. DETAILED DESCRIPTION

[0034] 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.

[0035] like Figures 1 to 8 As shown, on the one hand, a push plate mechanism provided by an embodiment of the utility model is suitable for a PCB board drilling machine. The PCB board drilling machine includes a frame and a spindle assembly arranged on the frame. The push plate mechanism includes a workbench 1, a lifting assembly 2 and a lever assembly 3. The lever assembly 3 is installed on the spindle assembly of the drilling machine. The workbench 1 is slidably connected to the frame of the drilling machine along a first direction. The workbench 1 can drive the material plate placed on the workbench 1 to reciprocate along the first direction. The lifting assembly 2 is installed on the workbench 1. When the workbench 1 moves, the lifting assembly 2 moves with the workbench 1. The lifting assembly 2 is used to lift the material plate so that the material plate can move up and down in the thickness direction of the material plate. After the material plate is lifted by the lifting assembly 2, the contact area between the material plate and the workbench 1 can be reduced during the process of the material plate entering and exiting the plate, the friction force on the material plate is reduced, and the scratches on the material plate and the workbench 1 are reduced.

[0036] When the lifting assembly 2 is in the lifting state, the lever assembly 3 is adapted to abut against the edge of the sheet to cooperate with the workbench 1 to push the sheet out or into the working area of ​​the workbench 1. When the workbench 1 drives the sheet to move in the first direction, since the edge of the sheet abuts against the lever assembly 3, the lever assembly 3 can stop the sheet so that the sheet cannot move, and the sheet and the frame of the drilling machine remain relatively still, so that the position of the sheet on the workbench 1 can be changed when the workbench 1 moves in the first direction, so that the sheet can enter or leave the working area of ​​the workbench 1. The spindle assembly of the drilling machine can perform drilling processing on the sheet in the working area.

[0037] Furthermore, the material board is a PCB board, and the material board is in the first direction ( Figure 1When the plate needs to be fed in, the lifting assembly 2 is in a lifting state, and the plate is placed on the lifting assembly 2 through an external loading device, and the workbench 1 drives the lifting assembly 2 and the plate to move forward along the first direction until the first edge of the plate abuts against the lever assembly 3. Due to the stop of the lever assembly 3, when the workbench 1 continues to move forward along the first direction, the plate and the workbench 1 move relative to each other, so that the lever assembly 3 pushes the plate to move into the working area, completing one plate feeding and pushing operation.

[0038] When the drilling machine completes processing of the material plate and needs to eject the plate, the workbench 1 moves forward along the first direction to drive the second edge of the material plate to pass over the lever assembly 3. Then, the workbench 1 moves backward along the first direction to drive the second edge of the material plate to abut against the lever assembly 3. When the workbench 1 continues to move backward along the second direction, the lever assembly 3 stops on the material plate, thereby pushing the material plate out of the working area of ​​the workbench 1, completing one ejection and pushing process.

[0039] In this embodiment, the workbench 1 drives the material plate to move, and the lever assembly 3 stops the material plate to achieve relative movement between the material plate and the workbench 1, thereby achieving the material plate in and out. In the process of the material plate in and out, the workbench 1 and the lever assembly 3 cooperate with each other, the number of workpieces involved is reduced, and the structure of the push plate mechanism is simple, avoiding the use of a large number of synchronous belts and synchronous wheels, and also reducing the cost of the drilling machine.

[0040] In one embodiment, the plate pushing mechanism further includes a lifting mechanism 4, and the lever assembly 3 is escalably disposed on the spindle assembly through the lifting mechanism 4, and the lifting mechanism 4 is used to drive the lever assembly 3 to rise and fall to abut against the edge of the material plate. After the lever assembly 3 pushes the material plate to move to the working area, the lifting mechanism 4 drives the lever assembly 3 to rise, and the lever assembly 3 leaves the first edge of the material plate. During the process of the material plate being ejected, the lever assembly 3 rises, thereby avoiding interference between the lever assembly 3 and the material plate, so that the material plate can pass over the lever assembly 3. When the workbench 1 moves backward along the first direction, the lever assembly 3 descends, and the lever assembly 3 can form a stopper for the second edge of the material plate, and the position of the material plate is changed in coordination with the movement of the workbench 1, so that the material plate is pushed out of the working area.

[0041] Wherein, taking the plane where the material sheet is located as a reference, the first direction is the length direction of the material sheet, and the first edge and the second edge of the material sheet are arranged relatively to each other in the length direction of the material sheet.

[0042] In one embodiment, the lifting mechanism 4 is a cylinder.

[0043] In one embodiment, the lifting assembly 2 includes a driving member 21 and a support plate 22. An avoidance groove 11 is provided on the workbench 1. The avoidance groove 11 and the support plate 22 extend along the length direction of the material plate. The driving member 21 is installed on the side of the workbench 1 away from the material plate. The support plate 22 is connected to the output end of the driving member 21. The driving member 21 can drive the support plate 22 to move so that the support plate 22 is exposed from the avoidance groove 11. At this time, the upper surface of the support plate 22 is higher than the surface of the workbench 1. The support plate 22 can lift the material plate under the drive of the driving member 21, so that the material plate is separated from the workbench 1, and the friction can be reduced when the lever assembly 3 drives the material plate to move.

[0044] In one embodiment, the driving member 21 is a cylinder.

[0045] In one embodiment, the lifting assembly 2 also includes a connecting shaft 23 installed on the support plate 22, a mounting seat 12 is provided on the workbench 1, a guide groove 124 is provided on the mounting seat 12, and the end of the connecting shaft 23 away from the support plate 22 is provided in the guide groove 124, and the driving member 21 drives the connecting shaft 23 to move along the guide groove 124 so that the support plate 22 exposes the avoidance groove 11. When the driving member 21 drives the support plate 22 to move, the guide groove 124 can guide the movement of the connecting shaft 23.

[0046] In one embodiment, the extension direction of the guide groove 124 forms an acute angle with the extension direction of the support plate 22, and the guide groove 124 is arranged obliquely upward. Driven by the driving member 21, the connecting shaft 23 moves obliquely upward along the guide groove 124, thereby driving the support plate 22 to have an upward movement, thereby lifting the material sheet.

[0047] Among them, the driving direction of the driving member 21 is the length direction of the material plate, and the driving member 21 drives the support plate 22 to have a tendency to move along the length direction of the material plate. Through the guiding effect of the guide groove 124, the moving direction of the support plate 22 is changed, so that the support plate 22 moves obliquely upward, so that it can be exposed from the avoidance groove 11.

[0048] In one embodiment, the mounting base 12 includes a main body 121, a first connecting plate 122 and a second connecting plate 123. The first connecting plate 122 and the second connecting plate 123 are spaced apart on the main body 121 so that the mounting base 12 is U-shaped as a whole. The support plate 22 is disposed between the first connecting plate 122 and the second connecting plate 123, and the support plate 22, the first connecting plate 122 and the second connecting plate 123 are connected by a connecting shaft 23.

[0049] The guide groove 124 includes a first groove arranged on the first connecting plate 122 and a second groove arranged on the second connecting plate 123. The position of the first groove corresponds to the position of the second groove. One end of the connecting shaft 23 is connected to the first groove, and the other end of the connecting shaft 23 passes through the support plate 22 and is connected to the second groove. When the driving member 21 drives the support plate 22 to move, the first groove and the second groove jointly guide the movement of the connecting shaft 23, which can improve the stability of the connecting shaft 23.

[0050] In one embodiment, a first bearing and a second bearing are respectively provided on the connecting shaft 23, one end of the connecting shaft 23 passes through the first groove and is connected to the first bearing, and the other end of the connecting shaft 23 passes through the second groove and is connected to the second bearing, and the assembly of the connecting shaft 23 and the mounting seat 12 is realized through the first bearing and the second bearing.

[0051] In one embodiment, the lifting assembly 2 further includes a mounting plate 24, a joint 25 and a connecting seat 26. The driving member 21 is mounted on the workbench 1 through the mounting plate 24, the connecting seat 26 is mounted on the support plate 22, the joint 25 connects the output end of the driving member 21 and the connecting seat 26, and the output end of the driving member 21 drives the connecting seat 26 to move through the joint 25, thereby driving the support plate 22 to move. The connection between the output end of the driving member 21 and the support plate 22 is achieved through the joint 25 and the connecting seat 26, so that the driving member 21 drives the support plate 22 to move.

[0052] In one embodiment, the connector 25 is a Y-shaped connector.

[0053] In one embodiment, a connecting groove 261 is provided on the connecting seat 26, and the joint 25 and the connecting seat 26 are connected by a pin shaft 27, and the pin shaft 27 is arranged in the connecting groove 261. When the driving member 21 drives the support plate 22 to move, the pin shaft 27 can move along the connecting groove 261, and the movement direction of the driving member 21 is perpendicular to the extension direction of the connecting groove 261. Since the guide groove 124 is arranged obliquely upward, when the driving member 21 drives the support plate 22 to move obliquely upward, the connecting seat 26 follows the support plate 22 to move obliquely upward. Through the movement of the pin shaft 27 in the connecting groove 261, the connecting seat 26 can float in the vertical direction to avoid interfering with the movement of the support plate 22.

[0054] In one embodiment, two lifting assemblies 2 are disposed on the workbench 1. The two lifting assemblies 2 are spaced apart and can jointly lift the material plate.

[0055] In one embodiment, the lever assembly 3 includes a push rod 32 connected to the output end of the lifting mechanism 4. The lifting mechanism 4 can drive the push rod 32 to move up and down to get close to or away from the workbench 1. The lifting mechanism 4 can realize the lifting and lowering of the push rod 32. Here, the up and down direction is the thickness direction of the material plate. When the material plate needs to be stopped, the lifting mechanism 4 drives the push rod 32 to descend and abut the material plate. When the workbench 1 drives the material plate to pass over the lever assembly 3, the lifting mechanism 4 drives the push rod 32 to rise to prevent the push rod 32 from interfering with the material plate.

[0056] In one embodiment, the lever assembly 3 also includes a push rod bracket 33 and a flange 34. The push rod bracket 33 is suitable for being installed on the spindle assembly of the drilling machine. The lifting mechanism 4 is installed on the push rod bracket 33 through the flange 34. The lifting mechanism 4 and the push rod 32 are installed on the spindle assembly of the drilling machine through the push rod bracket 33.

[0057] In one embodiment, the lever assembly 3 further includes a guide seat 31, on which a guide channel is provided, and the guide channel is used to guide when the lifting mechanism 4 drives the push rod 32 to move. The output end of the lifting mechanism 4 can pass through the guide channel and connect to the push rod 32, and under the drive of the lifting mechanism 4, the push rod 32 can move in the guide channel, thereby guiding the direction of the push rod 32.

[0058] In one embodiment, two lever assemblies 3 are provided, and the two lever assemblies 3 are provided on both sides of the main shaft assembly.

[0059] On the other hand, an embodiment of the utility model provides a PCB board drilling machine, including a frame, a plurality of spindle assemblies and a plurality of push plate structures, wherein the plurality of spindle assemblies are arranged on the frame, and the number of the spindle assemblies corresponds to the number of the lifting assemblies of the push plate mechanism or is twice the number of the lifting assemblies. Each push plate mechanism has two lever assemblies, which are respectively installed on the left and right sides of the spindle assembly.

[0060] The working process of the push plate structure is:

[0061] The loading position of the workbench 1 is located at the front end of the first direction. At the loading position of the workbench 1, the driving member 21 drives the support plate 22 to rise, so that the lifting assembly 2 is in a lifting state. The material plate is placed on the support plate 22 through an external loading device, and then the workbench 1 moves backward along the first direction until the first edge of the material plate exceeds the push rod 32 of the lever assembly 3. Then, the lifting mechanism 4 drives the push rod 32 to descend, and the workbench 1 moves forward along the first direction, so that the push rod 32 can stop the first edge of the material plate. The workbench 1 continues to move forward along the first direction. Under the stop of the lever assembly 3, the material plate and the workbench 1 move relative to each other, so that the lever assembly 3 pushes the material plate into the working area of ​​the workbench.

[0062] After reaching the working area, the lifting assembly 2 is lowered, and the spindle assembly of the drilling machine can perform drilling processing on the material plate.

[0063] When the plate needs to be taken out, the lever assembly 3 rises and leaves the first edge of the plate, and the workbench 1 moves forward along the first direction until the second edge of the plate opposite to the first edge passes over the lever assembly 3, and the lifting assembly 2 is switched to the lifting state to lift the plate after processing.

[0064] The workbench 1 moves backward along the first direction until the lever assembly 3 abuts against the second edge of the material plate opposite to the first edge, thereby stopping the material plate. The workbench 1 continues to move backward along the first direction, and the lever assembly 3 stops on the material plate. The material plate and the workbench 1 move relative to each other, thereby pushing the material plate out of the working area of ​​the workbench 1.

[0065] 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 plate pushing mechanism, suitable for a PCB board drilling machine, the PCB board drilling machine comprises a frame and a spindle assembly arranged on the frame, characterized in that: The push plate mechanism comprises a workbench, a lifting assembly and a lever assembly, wherein the lever assembly is mounted on the spindle assembly, and the workbench is slidably arranged on the frame along a first direction; The lifting assembly is installed on the workbench and is used to lift the material plate; When the lifting assembly is in the lifted state, the lever assembly is adapted to abut against the edge of the sheet material to cooperate with the workbench to push the sheet material out of or into the working area of ​​the workbench.

2. The push plate mechanism according to claim 1, characterized in that: It also includes a lifting mechanism; the lever assembly is liftably arranged on the spindle assembly through the lifting mechanism, and the lifting mechanism is used to drive the lever assembly to lift and lower to abut against the edge of the material plate.

3. The push plate mechanism according to claim 1, characterized in that: The lifting assembly includes a driving member and a supporting plate. The workbench is provided with an avoidance groove. The driving member is installed on the workbench. The driving member can drive the supporting plate to expose the avoidance groove and lift the material plate.

4. The push plate mechanism according to claim 3, characterized in that: The lifting assembly also includes a connecting shaft installed on the support plate, a mounting seat is provided on the workbench, a guide groove is provided on the mounting seat, an end of the connecting shaft away from the support plate is provided in the guide groove, and the driving member drives the connecting shaft to move along the guide groove so that the support plate is exposed from the avoidance groove.

5. The push plate mechanism according to claim 4, characterized in that: An extending direction of the guide groove forms an acute angle with an extending direction of the support plate.

6. The push plate mechanism according to claim 4, characterized in that: The mounting seat comprises a main body, a first connecting plate and a second connecting plate, wherein the first connecting plate and the second connecting plate are arranged on the main body at intervals, and the supporting plate is arranged between the first connecting plate and the second connecting plate; The guide groove includes a first groove arranged on the first connecting plate and a second groove arranged on the second connecting plate, one end of the connecting shaft is connected to the first groove, and the other end of the connecting shaft passes through the supporting plate and is connected to the second groove.

7. The push plate mechanism according to claim 3, characterized in that: The lifting assembly also includes a mounting plate, a joint and a connecting seat. The driving member is mounted on the workbench through the mounting plate, the connecting seat is mounted on the support plate, and the joint connects the output end of the driving member and the connecting seat.

8. The push plate mechanism according to claim 7, characterized in that: The connecting seat is provided with a connecting groove, the joint and the connecting seat are connected by a pin shaft, the pin shaft is arranged in the connecting groove, and when the driving member drives the supporting plate to move, the pin shaft moves along the connecting groove; The moving direction of the driving member is perpendicular to the extending direction of the connecting groove.

9. The push plate mechanism according to claim 2, characterized in that: The lever assembly comprises a push rod bracket, a flange and a push rod connected to the output end of the lifting mechanism. The push rod bracket is installed on the spindle assembly, and the lifting mechanism is installed on the push rod bracket through the flange.

10. The push plate mechanism according to claim 9, characterized in that: The push rod assembly also includes a guide seat installed on the push rod bracket, and a guide channel is provided on the guide seat. The guide channel is used to guide the push rod when the lifting mechanism drives the push rod to move.

11. A PCB board drilling machine, characterized in that: It comprises a frame, a plurality of spindle assemblies and a plurality of push plate mechanisms according to any one of claims 1 to 10, wherein the plurality of spindle assemblies are arranged on the frame, and the number of the spindle assemblies corresponds to the number of lifting assemblies of the push plate mechanism or is twice the number of the lifting assemblies.

12. The PCB drilling machine according to claim 11, characterized in that: Each of the push plate mechanisms has two lever assemblies which are respectively installed on the left and right sides of the main shaft assembly.

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