CN110788358A

CN110788358A - Multi-spindle counter drilling machine

Info

Publication number: CN110788358A
Application number: CN201911077113.0A
Authority: CN
Inventors: 王清胜
Original assignee: 王清胜
Priority date: 2019-11-06
Filing date: 2019-11-06
Publication date: 2020-02-14

Abstract

The invention provides a multi-shaft counter-drilling machine which comprises a control device, a machine frame, a drilling mechanism and a clamping device, wherein the drilling mechanism and the clamping device are electrically connected with the control device, the clamping device comprises a clamping machine frame, a bearing block, a lifting mechanism, a material pushing rod, a limiting block and a material pressing block, the limiting block and the material pressing block can stretch up and down, the material pushing rod, the limiting block and the bearing block are arranged on the lifting mechanism, the material pressing block and the lifting mechanism are arranged on the clamping machine frame, the material pressing block is positioned above the bearing block, the limiting block is positioned on one side of the bearing block, the material pushing rod is positioned on the other side of the bearing block, the material pushing rod can slide towards the direction of the bearing block, the lifting mechanism can lift up and down relative to the machine frame. The workpiece to be machined can be clamped among the bearing block, the limiting block, the pressing block and the material pushing rod in a wrapping mode, so that the problem that the machining precision is low due to the fact that the workpiece deviates in the drilling process is solved, and the problem that the workpiece to be machined falls off due to unstable clamping is also solved.

Description

Multi-spindle counter drilling machine

Technical Field

The invention relates to the technical field of machine tool machining, in particular to a multi-shaft counter drilling machine.

Background

A drilling machine is one of the most common devices in the mold manufacturing or other metal processing industry, and is generally used for precision drilling of metal blanks.

The existing drilling machine comprises a feeding device, a clamping device and a drilling mechanism, wherein the feeding device comprises a feeding push rod, the feeding push rod is positioned at the rear end of the clamping device, a workpiece to be processed is conveyed into the clamping device by the feeding push rod from the rear end of the clamping device, the clamping device clamps a workpiece to be machined, the drilling mechanism moves into the clamping device to machine the workpiece to be machined or the clamping device conveys the workpiece to be machined into the drilling mechanism to machine, generally speaking, the clamping device only clamps two sides of the workpiece to be machined (only clamps the upper surface and the lower surface or the two side surfaces of the workpiece to be machined), clamps two sides of the workpiece to be machined and then conveys the workpiece to be machined into the drilling mechanism to machine, in the process of machining, the workpiece to be machined may have position deviation, so that the machining position also has deviation, the machining precision is low, and the problem that the workpiece falls off in the drilling process may exist.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides the multi-spindle counter drilling machine which improves the clamping precision of the workpiece so as to improve the machining precision and simultaneously avoids the workpiece from falling off in the machining process.

According to the embodiment of the invention, the multi-spindle counter drill comprises a control device, a frame, and a drilling mechanism and a clamping device which are respectively arranged on the frame, wherein the clamping device and the drilling mechanism are respectively electrically connected with the control device, the clamping device comprises a clamping frame, a lifting mechanism, a material pushing rod, a limiting block, a material pressing block and a supporting block for supporting a workpiece to be processed, the material pushing rod, the limiting block and the supporting block are arranged on the lifting mechanism, the material pressing block and the lifting mechanism are arranged on the clamping frame, the material pressing block is positioned above the supporting block, the limiting block is positioned on one side of the supporting block close to the drilling mechanism, the limiting block can be stretched up and down, the material pushing rod is positioned on one side of the supporting block far away from the drilling mechanism, and the material pushing rod can be far away from or close to the direction of the supporting block, the material pressing block can stretch out and draw back towards the direction of the bearing block, the lifting mechanism can ascend or descend relative to the rack, the clamping rack can be far away from or close to the drilling mechanism towards the direction, and the clamping rack can ascend or descend relative to the rack.

The multi-shaft opposed drilling machine provided by the embodiment of the invention at least has the following beneficial effects: according to the invention, the clamping rack slides along the direction of the drilling mechanism, the relative position of the bearing block and the workpiece to be processed is adjusted, after the adjustment is finished, the lifting mechanism ascends to enable the bearing block to be in contact with the workpiece to be processed, after the bearing block is in contact with the workpiece to be processed, the lifting mechanism stops ascending to enable the bearing block to bear the lower surface of the workpiece to be processed, the limiting block extends out and is in contact with the right side surface of the workpiece to be processed, the material pressing block is close to the bearing block and is in contact with the upper surface of the workpiece to be processed, the material pushing rod is close to the bearing block and is in contact with the left side surface of the workpiece to be processed, the workpiece to be processed is clamped among the bearing block, the limiting block, the material pressing block and the material pushing rod, and the clamping precision can be improved and the workpiece to be processed is prevented. And then the workpiece is conveyed into a drilling mechanism for processing, and in the drilling process, the clamping device always keeps the state of clamping the four sides of the workpiece, so that the position of the workpiece to be processed is prevented from deviating in the processing process, and the processing precision is improved. Meanwhile, the problem that the workpiece to be machined falls off due to unstable clamping is avoided.

According to some embodiments of the invention, the multi-spindle counter drill further comprises a loading device, the loading device and the clamping device are mounted on the frame, and is positioned at the same side of the drilling mechanism, the feeding device comprises a first feeding push rod, a second feeding push rod, a feeding plate, a trough for placing a workpiece to be processed, a first feeding driving device and a second feeding driving device, the first feeding driving device and the second feeding driving device are electrically connected with the control device, the first feeding driving device is connected with the first feeding push rod, the second feeding driving device is connected with the second feeding push rod, the feeding plate is positioned below the material groove, the first feeding push rod and the second feeding push rod are oppositely arranged, and are positioned at two sides of the trough, and the first feeding push rod and the second feeding push rod are positioned at two sides of the bearing block. The to-be-processed workpiece is placed in the trough of the scheme, the feeding plate is located below the trough, the to-be-processed workpiece can automatically fall onto the feeding plate, the second feeding push rod moves before the first feeding push rod, the first feeding push rod moves to pass between the feeding plate and the trough, the to-be-processed workpiece is driven to move together, when the second feeding push rod reaches the feeding plate, the first feeding push rod just pushes out the to-be-processed workpiece, the first feeding push rod and the second feeding push rod are mutually matched to clamp the to-be-processed workpiece, and after clamping is finished, the to-be-processed workpiece is clamped by the clamping device to be processed into the drilling mechanism.

According to some embodiments of the invention, the first and second feeding driving means are air cylinders.

According to some embodiments of the invention, the first and second feeding push rods are in a "T" shaped configuration.

According to some embodiments of the invention, the trough is arranged vertically above the feeding plate or obliquely above the feeding plate. The vertical or slope of silo of this scheme sets up in the top of last flitch, can make under the effect of gravity place wait to process the work piece automatic fall on last flitch in the silo, need not extra thrust unit will wait to process the work piece propelling movement to last flitch on, wait to process the work piece simultaneously and fall into the distance on the flitch from the silo and be short, can guarantee to wait to process the work piece and can fall into on the flitch as early as possible, improve machining efficiency.

According to some embodiments of the present invention, the feeding device further includes a first guide rail and a second guide rail which are oppositely disposed, the first guide rail and the second guide rail are installed on the frame, the first feeding push rod is slidably installed on the first guide rail, and the second feeding push rod is slidably installed on the second guide rail. This scheme slides along first guide rail and second guide rail respectively through first material loading push rod and second material loading push rod, can effectively reduce the friction of first material loading push rod and second material loading push rod, and makes first material loading push rod and second material loading push rod slide more smoothly.

According to some embodiments of the present invention, the clamping device further includes a first clamping driving device, a second clamping driving device, a third clamping driving device, a fourth clamping driving device, a fifth clamping driving device and a sixth clamping driving device respectively electrically connected to the control device, the first clamping driving device is connected to the material pushing rod to drive the material pushing rod to move away from or close to the support block in a direction toward the support block, the second clamping driving device is connected to the limit block to drive the limit block to extend and retract up and down, the third clamping driving device is connected to the material pressing block to drive the material pressing block to extend and retract up and down in a direction toward the support block, the fourth clamping driving device is connected to the clamping frame to drive the clamping frame to move away from or close to the drilling mechanism in a direction toward the drilling mechanism, the fifth clamping driving device is connected to the lifting mechanism to drive the lifting mechanism to move up or down relative to the feeding device, and the sixth clamping driving device is connected with the clamping rack to drive the clamping rack to ascend or descend relative to the feeding device.

According to some embodiments of the invention, the binder block is a brass block. According to the scheme, the brass block is used as the material pressing block, and the hardness of the brass block is moderate, so that when the brass block is pressed against the upper surface of the workpiece to be processed, the workpiece to be processed cannot be damaged, meanwhile, the workpiece to be processed can be effectively clamped, the position deviation of the workpiece to be processed is avoided, and the processing precision of the workpiece to be processed is improved.

According to some embodiments of the invention, the stopper is a rectangular parallelepiped.

According to some embodiments of the invention, the clamping device further comprises a material pushing rod limiting block, and the material pushing rod limiting block is arranged on the lifting mechanism and is positioned between the material pushing rod and the bearing block. This scheme can restrict the activity stroke of ejector pin through setting up the ejector pin stopper, avoids ejector pin and bearing piece to take place the collision.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic view showing the overall structure of a multiple-spindle counter-drilling machine according to the present invention.

Fig. 2 is a schematic view of the multi-spindle counter drilling machine according to the present invention.

Fig. 3 is another state view of the multiple-spindle opposed drilling machine of the present invention.

Fig. 4 is a schematic structural diagram of the feeding device of the present invention.

Fig. 5 is a schematic structural view of the clamping device of the present invention.

Fig. 6 is another structural schematic diagram of the clamping device of the invention.

Fig. 7 is a schematic structural view of the drilling mechanism of the present invention.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, outer, inner, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, the meaning of a plurality of means is one or more, the meaning of a plurality of means is two or more, and larger, smaller, larger, etc. are understood as excluding the number, and larger, smaller, inner, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.

In order to more clearly understand the technical features, objects and effects of the present invention, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Referring to fig. 1 to 3, the present invention provides a multi-spindle counter drill including a control device 100, a frame 200, a drilling mechanism 300, a loading device 400 and a clamping device 500. The drilling mechanism 300, the feeding device 400 and the clamping device 500 are disposed on the frame 200 and electrically connected to the control device 100. The loading device 400 and the clamping device 500 are located on the same side of the drilling mechanism 300, and the clamping device 500 can move relative to the loading device 400 and can move towards or away from the drilling mechanism 300.

Specifically, a workpiece to be processed is placed on the feeding device 400, the control device 100 controls the feeding device 400 to feed, the feeding device 400 clamps the front side and the rear side of the workpiece to be processed during feeding, the feeding is completed, and the clamping by the clamping device 500 is waited; the clamping device 500 moves relative to the feeding device 400 and moves to the position near the feeding device 400 under the control of the control device 100, the position of the clamping device is adjusted, the upper surface, the lower surface, the left side surface and the right side surface of a workpiece to be machined on the feeding device 400 are clamped, at the moment, the workpiece to be machined is in a state that six surfaces of the workpiece to be machined are clamped, the control device 100 confirms that the six surfaces of the workpiece to be machined are clamped, the control device 100 controls the feeding device 400 to loosen the front side surface and the rear side surface of the workpiece to be machined, the clamping device 500 clamps the rest four surfaces of the workpiece to be machined, the rest four surfaces of the workpiece to be machined move in the direction close to the drilling mechanism 300, the workpiece to be machined is conveyed to the drilling mechanism 300 to be machined, in the whole machining process, the clamping device 500 clamps the four surfaces of the workpiece. When the drilling mechanism 300 is used for machining the previous workpiece, the feeding device 400 feeds and clamps the front side and the back side of the next workpiece to be machined, waiting for the resetting and clamping of the clamping device 500 is performed, after the previous workpiece is machined, the clamping device 500 carries out blanking on the workpiece which is machined, after the blanking is completed, the clamping device 500 resets (i.e., moves in the direction away from the drilling direction), clamps the upper surface, the lower surface, the left side and the right side of the next workpiece to be machined, the steps are repeated, the next workpiece to be machined is sent into the drilling mechanism 300 for machining, and the blanking is carried out after the machining is completed. The feeding device 400 and the clamping device 500 are both located on the same side of the drilling mechanism 300, so that the feeding distance can be shortened, and meanwhile, when the previous workpiece is processed, the next workpiece is pushed and waits for the clamping device 500 to clamp, so that the clamping time can be shortened.

In the present embodiment, the control device 100 is a control panel, and instructions such as control instructions, machining instructions, etc. can be input to the control device 100, and some relevant machining parameters, movement parameters of various mechanisms and devices, etc. can be input.

Referring to fig. 2 and 4, the feeding device 400 includes a first feeding push rod 410, a second feeding push rod 420, a feeding plate 430, a trough 440 and a feeding frame 400a, wherein the first feeding push rod 410, the second feeding push rod 420, the feeding plate 430 and the trough 440 are all mounted on the feeding frame 440 a. The workpiece to be machined is placed on the trough 440, the feeding plate 430 is located below the trough 440, the first feeding push rod 410 and the second feeding push rod 420 are arranged oppositely and located on two sides of the trough 440, the workpiece to be machined can fall on the feeding plate 430 from the trough 440, meanwhile, the first feeding push rod 410 and the second feeding push rod 420 are also located on two sides of the clamping device 500, and specifically, the first feeding push rod 410 and the second feeding push rod 420 are located on two sides of the supporting block 550 of the clamping device 500. During the feeding process, the workpiece to be processed falls into the gap between the trough 440 and the feeding plate 430, the second feeding push rod 420 moves to the vicinity of the feeding plate 430 in the direction close to the first feeding push rod 410 before the first feeding push rod 410, meanwhile, under the control of the control device 100, the first feeding push rod 410 moves in the direction close to the second feeding push rod 420, the workpiece to be processed in the gap between the trough 440 and the feeding plate 430 is pushed out together through the gap between the trough 440 and the feeding plate 430, when the second feeding push rod 420 reaches the feeding plate 430, the first feeding push rod 410 just pushes the workpiece to be processed out from the feeding plate 430, the second feeding push rod 420 cooperates with the first feeding push rod 410 to clamp the front side and the back side of the workpiece to be processed, and the workpiece to be processed is separated from the feeding plate 430, under the clamping of the first feeding push rod 410 and the second feeding push rod 420, the workpiece to be processed is placed on the rack 200 in a suspended manner (at this time, the workpiece to be processed is clamped to the receiving position), and the clamping device 500 is waited to move to the receiving position to clamp the workpiece to be processed.

Specifically, the feeding device 400 further includes a first feeding driving device 450 and a second feeding driving device 460, wherein the first feeding driving device 450 and the second feeding driving device 460 are electrically connected to the control device 100, respectively, the first feeding driving device 450 is connected to the first feeding push rod 410, the second feeding driving device 460 is connected to the second feeding push rod 420, and the control device 100 controls the first feeding driving device 450 and the second feeding driving device 460 to drive the first feeding push rod 410 and the second feeding push rod 420 to move relatively, respectively, and cooperate with each other to clamp the workpiece to be processed on the rack 200 in a suspended manner. More specifically, the thrust of the first feeding push rod 410 is different from the thrust of the second feeding push rod 420, and the thrust of the first feeding push rod 410 is greater than the thrust of the second feeding push rod 420, so that the thrust is not lost in the feeding process. In the process of pushing the workpiece to be processed, the first feeding push rod 410 and the second feeding push rod 420 work relatively to offset each other, so that the clamping reliability of the first feeding push rod 410 and the second feeding push rod 420 is higher, and the workpiece to be processed can be effectively prevented from falling off between the first feeding push rod 410 and the second feeding push rod 420.

More specifically, in the present embodiment, the first loading driving device 450 and the second loading driving device 460 have the same structure, both the first loading driving device 450 and the second loading driving device 460 are air cylinders, the thrust of the first loading driving device 450 is greater than the thrust of the second loading driving device 460, and the thrust of the second loading driving device 460 is 1 to 10 KG. The thrust of the first feeding push rod 410 can be realized to be greater than the thrust of the second feeding push rod 420 by using the air cylinder.

In this embodiment, the drill press loading device 400 further includes a first guide rail 470 and a second guide rail 480 which are oppositely disposed, and the first guide rail 470 and the second guide rail 480 are mounted on the feeder frame 400a, wherein the first loading push rod 410 is slidably mounted on the first guide rail 470, and the second loading push rod 420 is slidably mounted on the second guide rail 480. Under the driving of the first feeding driving device 450, the first feeding push rod 410 can slide along the first guide rail 470, and the second feeding push rod 420 can slide along the second guide rail 480 to clamp the front side and the back side of the workpiece to be processed, and clamp the workpiece to be processed to the receiving position to wait for the clamping of the clamping device 500.

In this embodiment, the first feeding push rod 410 and the second feeding push rod 420 have the same structure and are both in a "T" shape, the horizontal end of the "T" shaped first feeding push rod 410 is connected to the first feeding driving device 450, the vertical end of the "T" shaped first feeding push rod 410 is used for pushing a workpiece to be processed and matching the second feeding push rod 420 to clamp the workpiece to be processed to a receiving position, and the second feeding push rod 420 and the first feeding push rod 410 are installed in the same arrangement. Of course, the first feeding push rod 410 and the second feeding push rod 420 may also adopt other shapes and structures, such as a strip shape, and are not described herein again.

In this embodiment, the trough 440 is vertically disposed above the feeding plate 430, and the workpiece to be processed can slide down along the trough 440 onto the feeding plate 430 under the action of gravity. The workpiece to be machined is pushed onto the feeding plate 430 without other power devices, and meanwhile, the stroke of the workpiece to be machined falling into the feeding plate 430 from the trough 440 is short, so that the feeding speed can be increased, and the machining efficiency is improved.

In another embodiment, the trough 440 may be obliquely disposed above the feeding plate 430, and the workpiece to be processed can still slide down along the trough 440 onto the feeding plate 430 under the action of gravity.

In another embodiment, the material trough 440 may not be provided, and the workpieces to be processed may be fed to the upper material plate 430 one by a power device. The manner of pushing the workpiece to be processed is not limited to this.

Referring to fig. 5 and fig. 6, the clamping device 500 includes a base 500a, a slider 500b, a lifting mechanism 510, a material pushing rod 520, a limiting block 530, a material pressing block 540, a holding block 550 and a clamping frame 560, wherein the base 500a is mounted on the frame 200, the clamping frame 560 is mounted on the slider 500b, the slider 500b is slidably mounted on the base 500a, the lifting mechanism 510, the material pushing rod 520, the limiting block 530 and the material pressing block 540 are all electrically connected to the control device 100, the holding block 550 is used for holding a workpiece to be processed at a material receiving position, the material pushing rod 520, the limiting block 530 and the holding block 550 are all mounted on the lifting mechanism 510, the lifting mechanism 510 and the material pressing block 540 are respectively mounted on the clamping frame 560, in this embodiment, the clamping frame 560 is in a "U" shape and is mounted on the frame 200 (as shown in fig. 5) by rotating 90 °, the lifting mechanism 510 is mounted at a lower end of the "U" shape, the material pressing block 540 is mounted at the upper end of the U-shaped clamping frame 560, and the material pressing block 540 is opposite to the lifting mechanism 510. The material pushing rod 520, the limiting block 530 and the supporting block 550 can be lifted or lowered (i.e., lifted or lowered relative to the loading device 400) relative to the base 500a along with the lifting mechanism 510, the material pressing block 540 is located above the supporting block 550, while the supporting block 550 is lifted or lowered relative to the material pressing block 540 along with the lifting mechanism 510 relative to the loading device 400, the supporting block 550 is also lifted or lowered relative to the material pressing block 540, and the material pressing block 540 can be extended or retracted relative to the supporting block 550; the position of the limiting block 530 is opposite to that of the material pushing rod 520, the limiting block 530 is located on one side of the supporting block 550 close to the drilling mechanism 300, the limiting block 530 can extend up and down, the material pushing rod 520 is located on one side of the supporting block 550 away from the drilling mechanism 300, the material pushing rod 520 can move away from or close to the supporting block 550, the clamping frame 560 can slide along the base 500a along with the sliding block 500b, that is, the clamping frame 560 can move towards or away from the drilling mechanism 300, so that the lifting mechanism 510 and the material pressing block 540 can move away from or close to the drilling mechanism 300 together, and the clamping frame 560 can move up and down relative to the feeding device 400, so that the lifting mechanism 510 and the material pressing block 540 can move up and down relative to the base 500a (i.e., move up and down relative to the feeding device 400) along with.

Specifically, in an initial state, the lifting mechanism 510 is located below the feeding plate 430, correspondingly, the material pushing rod 520, the limiting block 530 and the supporting block 550 are all located below the feeding plate 430, the material pushing rod 520 is located at an initial position, the material pressing block 540 and the limiting block 530 are all in a retraction state, after the feeding device 400 pushes and clamps a workpiece to be processed, the clamping rack 560 is far away from or close to the drilling mechanism 300 and ascends, positions between the lifting mechanism 510 and the material pressing block 540 and the feeding device 400 are continuously adjusted, when the supporting block 550 is located right below the workpiece to be processed, the lifting mechanism 510 ascends until the supporting block 550 is attached to the lower surface of the workpiece to be processed, after attachment, the lifting mechanism 510 stops ascending, then, the limiting block 530 ascends and is attached to the right side surface of the workpiece to be processed, when the limiting block 530 is in place, the material pressing block 540 stretches out and stretches out to be attached to the upper surface of the workpiece to be processed, if the pressing block 540 is still unable to fit the upper surface of the workpiece to be processed after being completely extended, the clamping frame 560 is lowered to fit the pressing block 540 to the upper surface of the workpiece to be processed, and the clamping frame 560 is lifted to adapt to workpieces to be processed with different sizes. Then, the material pushing rod 520 moves towards the direction close to the support block 550 until the left side surface of the workpiece to be processed is attached, at this time, the upper and lower surfaces and the left and right side surfaces of the workpiece to be processed are clamped by the clamping device 500, the front and rear side surfaces of the workpiece to be processed are clamped by the material loading device 400, after the control device 100 confirms that the clamping device 500 finishes clamping, the first material loading push rod 410 and the second material loading push rod 420 of the material loading device 400 are away from each other, the workpiece to be processed is released, at this time, only the upper and lower surfaces and the left and right side surfaces of the workpiece to be processed are clamped, the whole clamping rack 560 descends and resets, the clamping rack 560 moves towards the direction close to the drilling mechanism 300 and is sent into the drilling mechanism 300, the drilling mechanism 300 drills the front and rear side surfaces of the workpiece to be processed, after the drilling process is finished, the whole clamping device 500 returns to the initial position, after returning to the initial position, then the limiting block 530 and the material pressing block 540 both retract to the initial state, the material pushing rod 520 approaches the bearing block 550 again, and the finished workpiece on the bearing block 550 is pushed into the workpiece recovery position for recovery. The clamping device 500 resets and clamps the next workpiece to be machined.

In this embodiment, the material pressing block 540 is a brass block, and the hardness of brass is moderate, so that the workpiece to be processed is not embossed due to the contact between the brass block and the workpiece to be processed, and meanwhile, the damage to the workpiece to be processed caused by the subsequent action of the material pressing block 540 can also be reduced. Of course, the material of the pressing block 540 is not limited thereto, and aluminum alloy or other material with moderate hardness may be selected.

In this embodiment, the limiting block 530 is a rectangular parallelepiped structure, and in an initial state, the limiting block 530 is retracted to a position where the topmost end is located on the same plane as the lifting mechanism 510, and when the limiting block 530 is deployed, the upper portion of the limiting block 530 enables the limiting block 530 to contact with the right side surface of the workpiece to be processed, and the limiting block acts on the workpiece to be processed. Of course, the limiting block 530 may also be configured to be a "convex" structure or other common geometric shapes, as long as it can limit, and can cooperate with the material pushing rod 520, the material pressing block 540 and the supporting block 550 to clamp the workpiece to be processed.

Referring to fig. 5 and fig. 6, in this embodiment, the clamping device 500 further includes a material pushing rod limiting block 570, the material pushing rod limiting block 570 is mounted on the lifting mechanism 510 and located between the material pushing rod 520 and the supporting block 550, and the material pushing rod limiting block 570 is a rectangular parallelepiped structure. Wherein, the ejector pin 520 is "P" style of calligraphy structure, install on elevating system 510 after rotatory 90, the ejector pin 520 supports through the afterbody of P type and presses the work piece of treating to process and will treat that the work piece carries out the unloading, the P type afterbody of ejector pin 520 is higher than the height of ejector pin stopper 570, and the P type head of ejector pin 520 then can be spacing by ejector pin stopper 570, ejector pin 520 can only be followed the initial point and removed to ejector pin stopper 570 department, can avoid ejector pin 520 and bearing piece 550 to bump, also can avoid ejector pin 520 to displace too greatly and lead to droing. Of course, the shape of the material pushing rod limiting block 570 is not limited to a rectangular parallelepiped structure, and may also be a limiting block in a "convex" structure or other common shapes.

More specifically, the clamping device 500 further includes a first clamping driving device 521, a second clamping driving device (not shown), a third clamping driving device 541, a fourth clamping driving device 561, a fifth clamping driving device (not shown), and a sixth clamping driving device 562, where the first clamping driving device 521, the second clamping driving device 541, the fourth clamping driving device 561, the fifth clamping driving device, and the sixth clamping driving device 562 are respectively electrically connected to the control device 100, and the first clamping driving device 521 is connected to the material pushing rod 520 to drive the material pushing rod 520 to move away from or close to the support block 550; the second clamping driving device is connected with the limiting block 530 to drive the limiting block 530 to extend up and down; the third clamping driving device 541 is connected with the material pressing block 540 to drive the material pressing block 540 to extend up and down relative to the support block 550; the fourth clamping driving device 561 is connected to the clamping frame 560 to drive the clamping frame 560 to move away from or close to the drilling mechanism 300 (i.e., the clamping frame 560 slides along the base 500a along with the slider 500 b), so that the lifting mechanism 510 and the pressing block 540 move together with the clamping frame 560, i.e., the lifting mechanism 510 and the pressing block 540 also move left and right relative to the feeding device 400; the fifth clamping driving device is connected with the lifting mechanism 510 to drive the lifting mechanism 510 to ascend or descend relative to the feeding device 400 (i.e., the lifting mechanism 510 ascends or descends along the base 500 a); the sixth chuck driving device 562 is connected to the chuck frame 560 to drive the chuck frame 560 to move up or down relative to the feeding device 400 (i.e., the chuck frame 560 moves up or down along the base 500 a), so that the lifting mechanism 510 and the material pressing block 540 also move up or down relative to the feeding device 400 (i.e., the lifting mechanism 510 itself can move up or down relative to the feeding device 400, or can move up or down relative to the feeding device 400 along with the lifting of the chuck frame 560), so as to adapt to the processing process and the processing of workpieces to be processed with different sizes.

In this embodiment, the first, second, third, fourth, fifth, and sixth

clamping driving devices

521, 541, 561, 562 all use cylinders, and the cylinders drive corresponding components to move, but of course, the first, second, third, fourth, fifth, and sixth

clamping driving devices

541, 561, fifth, and 562 may also rotate a screw motor or other common driving mechanisms, and the first, second, third, fourth, fifth, and sixth

clamping driving devices

521, 541, 561, fifth, and 562 may also select different driving mechanisms according to parameters such as path and processing precision.

Referring to fig. 7, the drilling mechanism 300 includes a drilling driving member and two drilling assemblies 310 disposed opposite to each other, four drill bits 311 are mounted on the drilling assemblies 310, and the drill bits 311 of the two drilling assemblies 310 correspond to each other one by one, and the drilling driving member is connected to the drilling assemblies 310, i.e., the drilling mechanism 300 is a four-head-to-drill mechanism. Initially, have certain distance between two drilling subassemblies 310, when clamping device 500 centre gripping treats processing work piece to between two drilling subassemblies 310, two drilling subassemblies 310 of drilling driving piece drive are close to treat the front and back side of processing work piece and punch and carry out the finish machining to the hole, at the in-process of whole processing, clamping device 500 keeps the clamping state (generally speaking, treat that the processing work piece is some five metals punching press dysmorphism pieces, if not to the work piece centre gripping, at the in-process of drilling, the position of work piece may squint, thereby lead to the machining precision low), clamping device 500 carries out the unloading to the work piece that the processing was accomplished again, the back is accomplished in the unloading, send into next work piece of treating to process again and process to drilling mechanism 300. In the embodiment, four drill bits 311 are installed on the drilling assembly 310, and the number of the drill holes 311 and the thickness specification can be selected according to the actual machining requirement.

With reference to fig. 1 to 7, the operation of the multi-spindle counter-drilling machine according to the present invention is as follows: the workpieces to be processed are placed in the trough 440, after the workpieces to be processed are placed, the workpieces to be processed sequentially fall onto the feeding plate 430 one by one, the first feeding push rod 410 is driven by the first feeding driving device 450 to push the workpieces to be processed at the bottommost layer to the edge of the feeding plate 430 (i.e. to move towards the direction close to the second feeding push rod 420), at this time, the second feeding push rod 420 also moves towards the direction close to the first feeding push rod 410 to clamp and move the workpieces to be processed to the receiving position (at this time, the workpieces to be processed are suspended on the rack 200 and clamped by the first feeding push rod 410 and the second feeding push rod 420 on the front side and the rear side), at an initial state, the first feeding push rod 410 and the second feeding push rod 420 are located between the material pressing blocks 540 and the lifting mechanism 510 (i.e. in a U-shaped opening of the clamping rack 560), the lifting mechanism 510 is at an initial position, and has a certain distance between the material pressing blocks 540, the material pushing rod 520 is in an initial position (the material pushing rod 520 is far away from the bearing block 550 and has a certain distance with the bearing block 550), and the limiting block 530 and the material pressing block 540 are both in a retraction state. The sixth clamping driving device 562 drives the clamping frame 560 to move up by a certain distance, the fourth clamping driving device 561 drives the clamping frame 560 to move towards the drilling mechanism 300, the relative positions of the material pressing plate 540 and the lifting mechanism 510 and the feeding device 400 are continuously adjusted, so that the supporting block 550 is positioned under the workpiece to be machined, the fifth clamping driving device drives the lifting mechanism 510 to move up, and gradually move up until the supporting block 550 supports the workpiece to be machined (at this time, the supporting block 550 is attached to the lower surface of the workpiece to be machined), the second clamping driving device drives the limiting block 530 to extend out and attach to the right side surface of the workpiece to be machined, meanwhile, the third clamping driving device 541 drives the material pressing plate 540 to extend out to abut against the upper surface of the workpiece to be machined, and then the first clamping driving device 521 drives the material pushing rod 520 to move towards the direction close to the supporting block 550 until the left side surface of the workpiece to be machined, at this time, six sides of the workpiece to be processed are respectively clamped by the feeding device 400 and the clamping device 500, after the control device 100 confirms that the six sides of the workpiece to be processed are all clamped, the first feeding push rod 410 and the second feeding push rod 420 are unclamped, the clamping device 500 is reset (the clamping device 500 is lowered integrally, namely the sixth clamping driving device 562 drives the clamping rack 560 to descend), the fourth clamping driving device 561 drives the clamping rack 560 to move towards the direction close to the drilling mechanism 300 and sends the workpiece to be processed into the drilling mechanism 300, if drilling is needed on the workpiece to be processed, the left end of the workpiece to be processed is aligned to the drill 311 on the rightmost side of the drilling mechanism 300, the drill 311 on the rightmost side of the workpiece to be processed is matched with the left end position of the workpiece to be processed to punch (the machining position is the left end of the front and back sides of the workpiece to be processed), after a rough hole is punched at, the clamping device 500 retreats slightly to make the hole align with the second right drill 311, the hole is processed for the second time, the precision of the hole is improved, the clamping device 500 retreats again to make the hole after the second time process align with the third right drill 311 to process for the third time, and so on. After the machining is completed, the clamping device 500 is reset again (i.e., returns to the reset position after the workpiece to be machined is just clamped), the material pushing rod 520 retreats, the limiting block 530 and the material pressing block 540 retract, and after the material pushing rod 520 retreats (i.e., the material pushing rod 520 approaches in the direction close to the bearing block 550) pushes the machined workpiece on the bearing block 550 into the position below the clamping device 500 for recovery. When the previous workpiece to be machined is fed into the drilling mechanism 300 for machining, the first feeding push rod 410 and the second feeding push rod 420 clamp the next workpiece to be machined to the receiving position to wait for the clamping device 500 to clamp the workpiece to be machined into the drilling mechanism 300 for machining.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.

Claims

1. A multi-axis opposed drilling machine is characterized by comprising a control device, a machine frame, a drilling mechanism and a clamping device, wherein the drilling mechanism and the clamping device are respectively arranged on the machine frame, the clamping device and the drilling mechanism are respectively electrically connected with the control device, the clamping device comprises a clamping machine frame, a lifting mechanism, a material pushing rod, a limiting block, a material pressing block and a bearing block for bearing a workpiece to be processed, the material pushing rod, the limiting block and the bearing block are arranged on the lifting mechanism, the material pressing block and the lifting mechanism are arranged on the clamping machine frame, the material pressing block is positioned above the bearing block, the limiting block is positioned on one side of the bearing block close to the drilling mechanism, the limiting block can be stretched up and down, the material pushing rod is positioned on one side of the bearing block far away from the drilling mechanism, and the material pushing rod can be far away from or close to the direction of, the material pressing block can stretch out and draw back towards the direction of the bearing block, the lifting mechanism can ascend or descend relative to the rack, the clamping rack can be far away from or close to the drilling mechanism towards the direction, and the clamping rack can ascend or descend relative to the rack.

2. The multi-spindle counter drill press as claimed in claim 1, further comprising a loading device mounted to the frame with the clamping device, and is positioned at the same side of the drilling mechanism, the feeding device comprises a first feeding push rod, a second feeding push rod, a feeding plate, a trough for placing a workpiece to be processed, a first feeding driving device and a second feeding driving device, the first feeding driving device and the second feeding driving device are electrically connected with the control device, the first feeding driving device is connected with the first feeding push rod, the second feeding driving device is connected with the second feeding push rod, the feeding plate is positioned below the material groove, the first feeding push rod and the second feeding push rod are oppositely arranged, and are positioned at two sides of the trough, and the first feeding push rod and the second feeding push rod are positioned at two sides of the bearing block.

3. A multi-spindle opposed drill press as claimed in claim 2 wherein the first and second feed drives are pneumatic cylinders.

4. The multi-spindle counter drill press as claimed in claim 2, wherein the first and second load push rods are of a "T" configuration.

5. A multi-spindle opposed drill press as claimed in claim 2 wherein the troughs are disposed vertically above the upper flitch or are disposed obliquely above the upper flitch.

6. The multi-spindle opposed drill press as recited in claim 2 wherein the loader assembly further comprises first and second opposed rails mounted to the frame, the first loader ram being slidably mounted to the first rail and the second loader ram being slidably mounted to the second rail.

7. The multi-spindle opposed drilling machine according to claim 1, wherein the clamping device further comprises a first clamping driving device, a second clamping driving device, a third clamping driving device, a fourth clamping driving device, a fifth clamping driving device and a sixth clamping driving device which are respectively electrically connected with the control device, the first clamping driving device is connected with the material pushing rod to drive the material pushing rod to move away from or close to the bearing block in the direction, the second clamping driving device is connected with the limiting block to drive the limiting block to move up and down, the third clamping driving device is connected with the material pressing block to drive the material pressing block to move up and down towards the bearing block in the direction, the fourth clamping driving device is connected with the clamping frame to drive the clamping frame to move away from or close to the drilling mechanism in the direction, the fifth clamping driving device is connected with the lifting mechanism to drive the lifting mechanism to ascend or descend relative to the rack, and the sixth clamping driving device is connected with the clamping rack to drive the clamping rack to ascend or descend relative to the rack.

8. The multi-spindle counter-drilling machine as claimed in claim 1, wherein the swage block is a brass block.

9. A multi-spindle stand-alone drill press as claimed in claim 1 wherein the stop block is of rectangular parallelepiped configuration.

10. The multi-spindle opposed drilling machine as claimed in claim 1, wherein the clamping device further comprises a push rod limiting block which is mounted on the lifting mechanism and is located between the push rod and the bearing block.