Upper processing head and six-sided drilling and milling processing center

Abstract

The present invention discloses a six-sided drilling and milling machining center and an upper machining head. The upper machining head can be close to a clamping and conveying device during machining. The upper machining head includes a support frame, an upper machining spindle, a first driver, a first pressure plate, and a second pressure plate. The lower end portion of the upper machining spindle is a spindle end. The upper machining spindle is mounted on the support frame so as to be able to slide up and down. The first driver is mounted on the support frame. The upper machining spindle is mounted on the output end of the first driver. The first driver drives the upper machining spindle to move up and down. The second pressure plate is sleeved on the spindle end. The first pressure plate is arranged to surround the spindle end. The first pressure plate is arranged to move up and down. The first pressure plate has a first avoidance position located at the top and a first pressing position located at the bottom. The second pressure plate is arranged to move up and down. The second pressure plate has a second avoidance position located at the top and a second pressing position located at the bottom.

Description

Technical Field

[0001] The invention relates to the field of woodworking machinery, in particular to an upper processing head and a six-sided drilling and milling processing center. Background Art

[0002] In the current production process of panel furniture, six-sided drilling and milling machining centers are widely used to process panels. The six-sided drilling and milling machining centers include an upper processing head, a platform, and a clamping and conveying device. The upper processing head is used to drill holes or grooves on all sides except the bottom of the panel. The clamping and conveying device clamps the panel and positions the panel on the platform. The clamping and conveying device is also used to bring the panel in or out of the platform. The moving direction of the clamping and conveying device is the Y direction, and the moving direction of the upper processing head is the X direction. Since the clamping and conveying device only clamps one side of the panel, the part of the panel that deviates from the clamping and conveying device may warp up. During processing, the warped part will float, resulting in uneven quality of the processed holes and grooves. To address this issue, a pressure plate device will be added to the upper processing head. The pressure plate device presses the panel when the upper processing head processes holes or grooves, so that the panel is close to the platform to ensure processing quality.

[0003] However, during production, it was discovered that when the part of the plate that the upper processing head needs to process is relatively close to the clamping and conveying device, due to the large size of the pressing plate device, the pressing plate device will collide with the clamping and conveying device when pressing the plate, and cannot press down normally. If the pressing plate device is abandoned to press the plate, the plate will warp, affecting the processing quality, and the company is in a dilemma. In addition, in order to achieve dust-free processing, the pressing plate device is usually connected to a dust collection device. The existing upper processing head uses an angle head to groove or drill holes on the side of the plate. In order to be compatible with the angle head, the pressing plate device is provided with multiple openings. When the angle head of the upper processing head is replaced with a single head, the dust collection effect of the dust collection device is not ideal due to the existence of the openings.

[0004] Therefore, there is an urgent need for an upper processing head and a six-sided drilling and milling processing center that can press the plate at a position close to the clamping and conveying device to overcome the above-mentioned defects. Summary of the Invention

[0005] The object of the present invention is to provide an upper processing head which can press a plate at a position close to a clamping and conveying device during processing.

[0006] Another object of the present invention is to provide a six-sided drilling and milling machining center, in which the upper machining head can be close to the clamping and conveying device during machining.

[0007] To achieve the above-mentioned objectives, the present invention provides an upper processing head, which includes a support frame, an upper processing spindle, a first drive, a first pressure plate and a second pressure plate, the lower end part of the upper processing spindle is the spindle end, the upper processing spindle is slidably mounted on the support frame, the first drive is mounted on the support frame, the upper processing spindle is mounted on the output end of the first drive, the first drive drives the upper processing spindle to move up and down, the second pressure plate is sleeved on the spindle end, the first pressure plate is arranged to surround the spindle end, the first pressure plate can be arranged to move up and down, the first pressure plate has a first avoidance position located above and a first pressing position located below, the second pressure plate can be arranged to move up and down, the second pressure plate has a second avoidance position located above and a second pressing position located below, the first pressure plate in the first pressing position and the second pressure plate in the second pressing position are flush with each other, and the first pressure plate surrounds the second pressure plate, the first pressure plate in the first avoidance position is located above the second pressure plate in the second pressing position, and the first pressure plate in the first pressing position is located below the second pressure plate in the second avoidance position.

[0008] Preferably, the first pressing plate half surrounds the main shaft end, the first pressing plate in the first pressing position half surrounds the second pressing plate in the second pressing position, and the right end of the second pressing plate exceeds the first pressing plate.

[0009] Preferably, the second pressing plate is connected to a dust hood, and the second pressing plate is provided with an installation notch for accommodating a tool, and the installation notch is communicated with the dust hood.

[0010] Preferably, the installation gap includes a circular gap and a square gap, the circular gap is connected to the square gap, and the circular gap and the square gap are arranged in front and behind.

[0011] Preferably, the first pressure plate includes a left-side pressing structure arranged on the left side of the main shaft end, a right-side pressing structure arranged on the right side of the main shaft end, and a rear-side pressing structure arranged on the rear side of the main shaft end. The bottom of the left-side pressing structure is provided with an avoidance groove extending along the left-right direction, the bottom of the right-side pressing structure is provided with an avoidance groove extending along the left-right direction, and the bottom of the rear-side pressing structure is provided with an avoidance groove extending along the front-back direction.

[0012] Preferably, small pressing plates are installed at the bottoms of the left side pressing structure, the right side pressing structure and the rear side pressing structure.

[0013] Preferably, the upper processing head of the present invention also includes a second drive and a third drive, the second drive and the third drive are each installed on the upper processing spindle, the first pressure plate is installed at the output end of the second drive, the second drive drives the first pressure plate to move up and down, the second pressure plate is installed at the output end of the third drive, and the third drive drives the second pressure plate to move up and down.

[0014] To achieve another of the aforementioned objectives, the present invention provides a six-sided drilling and milling machining center comprising a frame, a processing platform, a clamping and conveying device, and the aforementioned upper processing head. The processing platform is mounted on the frame, and a horizontal beam is formed above the processing platform on the frame, extending in a left-right direction. The upper processing head is mounted on the horizontal beam so as to slide left and right. The clamping and conveying device is mounted on the frame and disposed on the left side of the processing platform. The clamping and conveying device is used to clamp a plate and convey the clamped plate in a forward and backward direction. A first pressing plate in a first downward pressing position and a second pressing plate in a second downward pressing position respectively press the plate.

[0015] Preferably, the six-sided drilling and milling machining center of the present invention also includes a lower machining head, the machining machine includes a front worktable and a rear worktable, the front worktable and the rear worktable are arranged in front of each other, a motion channel is formed between the front worktable and the rear worktable, the front worktable and the rear worktable can be adjusted forward and backward, the lower machining head is arranged directly below the motion channel, the lower machining head includes a first lower machining spindle and a second lower machining spindle, the first lower machining spindle and the second lower machining spindle are arranged side by side, one on the left and the other on the right, a first jacking device is installed at the right end of the second lower machining spindle, and a second jacking device is installed between the first lower machining spindle and the second lower machining spindle, the first jacking device and the second jacking device can be selectively raised to a position flush with the machining platform when the lower machining head processes the bottom surface of the plate.

[0016] Preferably, the first supporting device includes a first lifting cylinder and a first supporting block. The first supporting block is installed at the output end of the first lifting cylinder. The first lifting cylinder drives the first supporting block to move up and down. The rear end of the first supporting block extends backward to form an auxiliary supporting structure. The width of the auxiliary supporting structure is smaller than the width of the first supporting block.

[0017] Compared with the prior art, during processing, the six-sided drilling and milling machining center of the present invention moves the first pressing plate to the first downward pressing position and the second pressing plate to the second downward pressing position. At this time, the first pressing plate and the second pressing plate jointly press the plate downward, and the plate is fully positioned. The first pressing plate in the first avoidance position is located above the second pressing plate in the second downward pressing position. At this time, when the second pressing plate presses the plate, the first pressing plate is located above the second pressing plate, and the first pressing plate is equivalent to rising upward. The first pressing plate is also located above the clamping and conveying device. The first pressing plate will not interfere with the clamping and conveying device. Therefore, the upper machining spindle can move to a position closer to the clamping and conveying device, thereby effectively increasing the machining range of the upper machining spindle. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional diagram of the six-sided drilling and milling machining center of the present invention.

[0019] Figure 2 It is a three-dimensional diagram of the invented six-sided drilling and milling machining center at another angle.

[0020] Figure 3 It is a perspective view of the upper processing head of the present invention.

[0021] Figure 4 It is a three-dimensional view of the upper processing head of the present invention when it is at another angle.

[0022] Figure 5 It is a stereoscopic view of the upper processing head of the present invention after the support frame, the first driver, the upper drilling group device, the mounting frame, the driving motor and the lifting cylinder are hidden.

[0023] Figure 6 yes Figure 5 Left side view of the structure shown.

[0024] Figure 7 yes Figure 5 The structure shown is a perspective view from another angle.

[0025] Figure 8 yes Figure 5 The structure shown is a perspective view at another angle.

[0026] Figure 9 yes Figure 5 Bottom view of the structure shown.

[0027] Figure 10 It is a perspective view of the lower processing head of the present invention.

[0028] Figure 11 It is a front view of the lower processing head of the present invention.

[0029] Figure 12 It is a top view of the lower processing head of the present invention.

[0030] Figure 13 It is a structural schematic diagram of the six-sided drilling and milling machining center of the present invention when processing a plate.

[0031] Figure 14 yes Figure 13 Side view of the structure shown.

[0032] Figure 15 yes Figure 13 Schematic diagram of the structure when the upper middle processing head is in another position.

[0033] Figure 16 It is a structural diagram when the existing solution is used to process the plate.

[0034] Figure 17 It is a structural schematic diagram of the lower processing head of the present invention when processing a plate.

[0035] Figure 18It is a structural schematic diagram of processing a plate when the lower processing head of the present invention is in another position.

[0036] Figure 19 It is a structural schematic diagram of the side drill of the upper drilling group unit of the present invention when drilling a hole on the side of a plate. DETAILED DESCRIPTION

[0037] In order to explain the technical content and structural features of the present invention in detail, the following is a further description in conjunction with the embodiments and the accompanying drawings.

[0038] like Figure 1 、 Figure 2 As shown, the present invention discloses a six-sided drilling and milling machining center 100, which is used to process the various sides of a plate. The processed plate is generally square, but not limited to this. The square plate includes 6 sides. The six-sided drilling and milling machining center 100 performs drilling, milling and other processing on the 6 sides of the plate.

[0039] The six-sided drilling and milling machining center 100 of the present invention includes a frame 10, a processing machine 20, a clamping and conveying device 30, an upper processing head 40, and a lower processing head 50. The processing machine 20 is mounted on the frame 10, and the frame 10 is formed with a crossbeam 11 arranged in the left-right direction above the processing machine 20. The upper processing head 40 is mounted on the crossbeam 11 in a sliding manner left and right. The clamping and conveying device 30 is mounted on the frame 10, and the clamping and conveying device 30 is used to clamp the plate and convey the clamped plate in the front-back direction. The lower processing head 50 is mounted below the processing machine 20. The upper processing head 40 is used to process the other side surfaces of the plate except the bottom surface, and the lower processing head 50 is used to process the bottom surface of the plate. During processing, the clamping and conveying device 30 clamps the plate and conveys it backward, and conveys the plate to the bottom of the upper processing head 40, and the upper processing head 40 and the lower processing head 50 process each side surface of the plate. The clamping and conveying device 30 clamps the left side of the plate to position the plate.

[0040] like Figure 2 As shown, the direction indicated by arrow Y is from front to back, the direction indicated by arrow X is from left to right, and the direction indicated by arrow Z is from bottom to top.

[0041] like Figures 3 to 9As shown, the upper processing head 40 of the present invention includes a support frame 41, an upper processing spindle 42, a first driver 43, a first pressure plate 44, and a second pressure plate 45. The lower end of the upper processing spindle 42 is a spindle end 421. The upper processing spindle 42 is mounted on the support frame 41 so as to be able to slide up and down. The first driver 43 is mounted on the support frame 41, and the upper processing spindle 42 is mounted on the output end of the first driver 43. The first driver 43 drives the upper processing spindle 42 to move up and down. The second pressure plate 45 is sleeved on the spindle end 421, and the first pressure plate 44 is arranged to surround the spindle end 421. The first pressure plate 44 is arranged to move up and down, and has a first avoidance position located at the top and a first downward pressing position located at the bottom. The second pressure plate 45 is arranged to move up and down, and has a second avoidance position located at the top and a second downward pressing position located at the bottom. The first pressure plate 44 in the first downward pressing position and the second pressure plate 45 in the second downward pressing position are aligned, and the first pressure plate 44 surrounds the second pressure plate 45.

[0042] During processing, the first pressing plate 44 moves to the first pressing position, and the second pressing plate 45 moves to the second pressing position. At this time, the first pressing plate 44 and the second pressing plate 45 press the plate downward together, and the plate is fully positioned. Figure 13 and Figure 14 As shown, the first pressing plate 44 in the first avoidance position is located above the second pressing plate 45 in the second pressing position. At this time, when the second pressing plate 45 presses the plate, the first pressing plate 44 is located above the second pressing plate 45, and the first pressing plate 44 is equivalent to rising upward. The first pressing plate 44 is also located above the clamping and conveying device 30. The first pressing plate 44 will not interfere with the clamping and conveying device 30. Therefore, the upper processing spindle 42 can move to a position closer to the clamping and conveying device 30, thereby effectively increasing the processing range of the upper processing spindle 42. Figure 16 As shown, it is a simple structural diagram of the six-sided drilling and milling machining center of the prior art. When the processing part is relatively close to the clamping and conveying device 03, the pressure plate device 02 is a whole and can only be raised and lowered as a whole. When the pressure plate is lowered, it will collide with the clamping and conveying device 03, resulting in motion interference. The interference part is as follows: Figure 16 Arrow A indicates that the machining spindle 01 cannot slot or drill properly. If the plate is not pressed, the plate cannot be positioned properly, making it difficult to ensure machining quality. This creates a dilemma. Thus, the upper machining head 40 of the present invention offers excellent machining flexibility, effectively expanding the machining range of the upper machining spindle 42 and providing greater flexibility.

[0043] like Figure 15 As shown, of course, according to actual needs, only the first pressing plate 44 can be used to press the plate. At this time, the first pressing plate 44 in the first pressing position is located above the second pressing plate 45 in the second avoiding position.

[0044] It is worth pointing out that the upper processing spindle 42 can adopt the existing structure. The output end of the upper processing spindle 42 is installed with a tool, which is an angle head or a single head. The angle head is used for processing the side of the plate, and the single head is used for processing the top surface of the plate. The drawings provided by the present invention all use an angle head.

[0045] like Figures 3 to 9 As shown, it is preferred that the first pressing plate 44 semi-encloses the spindle end 421. The first pressing plate 44 in the first downward pressing position semi-encloses the second pressing plate 45 in the second downward pressing position. The right end of the second pressing plate 45 extends beyond the first pressing plate 44. This arrangement facilitates the arrangement of the first pressing plate 44 and the second pressing plate 45. Furthermore, the second pressing plate 45 is connected to a dust hood 46. The second pressing plate 45 is provided with a mounting notch 451 for accommodating a tool, and the mounting notch 451 is connected to the dust hood 46. When the single head is mounted on the spindle end 421, the single head is located in the mounting notch 451. When the second pressing plate 45 is in the second downward pressing position and presses the sheet material, the dust hood 46 generates negative pressure inside. The debris generated during the single head processing flows through the mounting notch 451 to the dust hood 46, thereby extracting the debris generated during the processing. For the angle head, since the angle head is used to process the side of the plate, the second pressing plate 45 does not press the plate during the angle head processing, and the dust naturally cannot flow to the dust hood 46 through the installation gap 451. These debris are collected by another collection device.

[0046] Preferably, the mounting notch 451 includes a circular notch 4511 and a square notch 4512. The circular notch 4511 and the square notch 4512 are connected and arranged in a front-to-back relationship. The circular notch 4511 is used to accommodate the blade portion of a single-head and angle head, while the square notch 4512 is used to accommodate the blade portion of an angle head.

[0047] like Figures 7 to 9 As shown, the first pressing plate 44 includes a left pressing structure 441 provided on the left side of the main shaft end 421, a right pressing structure 442 provided on the right side of the main shaft end 421, and a rear pressing structure 443 provided on the rear side of the main shaft end 421. In comparison, the pressing area of ​​the first pressing plate 44 is approximately half that of the pressing plate device in the prior art. However, since the second pressing plate 45 can also press the plate, the pressing area of ​​the first pressing plate 44 and the second pressing plate 45 when pressing the plate is nearly equal to that of the pressing plate device in the prior art, or may even be larger.

[0048] To avoid the blade of the angle cutter, the bottom of the left-side pressing structure 441 is provided with a horizontally extending escape groove 444. The bottom of the right-side pressing structure 442 is provided with a horizontally extending escape groove 444. The bottom of the rear-side pressing structure 443 is provided with a front-to-back extending escape groove 444. The blade of the angle cutter extends into the escape groove 444, providing an escape groove. To better compress the sheet material, a small pressure plate 445 is installed at the bottom of each of the left-side pressing structure 441, the right-side pressing structure 442, and the rear-side pressing structure 443.

[0049] like Figures 3 to 8 As shown, the upper processing head 40 of the present invention also includes a second driver 47 and a third driver 48. The second driver 47 and the third driver 48 are each mounted on the upper processing spindle 42. The first pressure plate 44 is mounted on the output end of the second driver 47. The second driver 47 drives the first pressure plate 44 up and down, thereby switching the first pressure plate 44 between a first downward pressing position and a first avoidance position. The second pressure plate 45 is mounted on the output end of the third driver 48. The third driver 48 drives the second pressure plate 45 up and down, thereby switching the second pressure plate 45 between a second downward pressing position and a second avoidance position. Two second drivers 47 are mounted on the upper processing spindle 42, connected to the left downward pressing structure 441 and the right downward pressing structure 442, respectively. The first driver 43 drives the upper processing spindle 42 up and down, moving the spindle end 421 away from or closer to the sheet material, allowing a single head or angle head to process the sheet material. The first driver 43, the second driver 47, and the third driver 48 are pneumatic cylinders, but other linear drive devices can also be used. In actual use, the upper processing spindle 42 is an electric spindle, which is mainly used to drive a single head or an angle head to mill grooves on the side of the plate.

[0050] like Figure 3 and Figure 4 As shown, the upper processing head 40 also includes an upper drilling assembly 49, which is mounted on a support frame 41. The upper drilling assembly 49 is used to drill holes in the side of the plate. The upper processing spindle 42 and the upper drilling assembly 49 cooperate with each other to complete the milling and drilling of the side of the plate. In addition, the upper processing head 40 of the present invention also includes a mounting frame 401, which is mounted on the mounting frame 401 so as to be slidable up and down. A drive motor 402 is installed on the mounting frame 401. The output end of the drive motor 402 is connected to the support frame 41. The drive motor 402 drives the support frame 41 to move up and down, thereby driving the upper processing spindle 42 and the upper drilling assembly 49 to move up and down, approaching or moving away from the plate. The function of the first driver 43 is to drive the upper processing spindle 42 to move up and down, driving the upper processing spindle 42 downward and out of the upper drilling assembly 49, so as to facilitate the upper processing spindle 42 to perform milling processing on the side of the plate. A lifting cylinder 403 is also installed on the mounting frame 401. The lifting cylinder 403 is connected to the support frame 41. The lifting cylinder 403 lifts the support frame 41 to play the role of a counterweight.

[0051] like Figure 1 、 Figure 2 、 Figure 10 、 Figure 11 and Figure 12 As shown, the processing machine 20 includes a front worktable 21 and a rear worktable 22. The front worktable 21 and the rear worktable 22 are arranged in a front-to-rear arrangement, with a motion channel 23 formed between the front worktable 21 and the rear worktable 22. The front worktable 21 and the rear worktable 22 can be adjusted by translation back and forth. The lower processing head 50 is located directly below the motion channel 23. The lower processing head 50 includes a first lower processing spindle 51 and a second lower processing spindle 52. The first lower processing spindle 51 and the second lower processing spindle 52 are arranged side by side, one on the left and one on the right. A first supporting device 53 is mounted on the right end of the second lower processing spindle 52, and a second supporting device 54 is mounted between the first lower processing spindle 51 and the second lower processing spindle 52. The first supporting device 53 and the second supporting device 54 can be selectively raised upward to a position flush with the processing machine 20 when the lower processing head 50 processes the bottom surface of the plate.

[0052] When the lower processing head 50 processes the bottom surface of the plate, the plate will extend into the motion channel 23. The part of the plate extending into the motion channel 23 lacks support. When the first pressing plate 44 and the second pressing plate 45 press down the plate, the plate will bend downward. Therefore, in order to ensure the processing quality, the first supporting device 53 and the second supporting device 54 are provided to support the plate to avoid deformation of the plate during processing, thereby ensuring the processing quality.

[0053] It should be noted that the first supporting device 53 and the second supporting device 54 are independently controlled. The first supporting device 53 or the second supporting device 54 can be used alone to support the plate, or the first supporting device 53 and the second supporting device 54 can be used simultaneously to support the plate.

[0054] like Figure 17 As shown, the first supporting device 53 and the second supporting device 54 both serve the second lower processing spindle 52. For example, when the plate extends into the motion channel 23 and it is necessary to groove the right side of the bottom surface of the plate, the second supporting device 54 is located below the plate and rises to support the plate. At this time, the second lower processing spindle 52 is located below the plate and the first supporting device 53 is located on the right side of the plate. The first supporting device 53 does not play a supporting role, and the second lower processing spindle 52 can groove the right side of the bottom of the plate. Figure 18As shown, on the contrary, when it is necessary to groove the left side of the bottom surface of the plate, the first supporting device 53 is located below the plate and rises to support the plate. At this time, the second lower processing spindle 52 is also located below the plate, and the second supporting device 54 is located on the left side of the plate. The second supporting device 54 does not play a supporting role, and the second lower processing spindle 52 can groove the left side of the bottom of the plate. It can be seen that whether it is grooved on the left bottom of the plate or not, the plate can be supported by using the first supporting device 53 and the second supporting device 54 in combination.

[0055] like Figure 10 、 Figure 12 and Figure 19 As shown, specifically, the first jacking device 53 includes a first lifting cylinder 531 and a first supporting block 532. The first supporting block 532 is mounted on the output end of the first lifting cylinder 531. The first lifting cylinder 531 drives the first supporting block 532 to move up and down. An auxiliary supporting structure 533 extends backward from the rear end of the first supporting block 532. The width of the auxiliary supporting structure 533 is smaller than that of the first supporting block 532. The provision of the auxiliary supporting structure 533 increases the length of the first supporting block 532. The upper drilling assembly 49 includes a side drill 491 positioned relatively rearward. The auxiliary supporting structure 533 supports the rear end of the plate, preventing the plate from floating when the side drill 491 is processing the rear end side of the plate, thereby ensuring processing quality. The structure of the second jacking device 54 is substantially the same as that of the first jacking device 53 and will not be described in detail.

[0056] like Figures 10 to 12 As shown, the lower processing head 50 further includes a lower drilling assembly 55 for drilling holes on the bottom surface of the plate. The first lower processing spindle 51 and the second lower processing spindle 52 are used to mill grooves on the bottom surface of the plate.

[0057] like Figure 1 and Figure 2 As shown, the six-sided drilling and milling machining center 100 of the present invention also includes a lateral pressure positioning device 60. The lateral pressure positioning device 60 is mounted on the frame 10 so as to be translatably movable left and right. The lateral pressure positioning device 60 is located directly above the processing machine 20 and to the right of the clamping and conveying device 30. The lateral pressure positioning device 60 is used to perform lateral pressure positioning on a plate placed on the processing machine 20. The clamping and conveying device 30 clamps the plate on the left side and pushes against the right side of the plate to strengthen the plate's positioning. The lateral pressure positioning device 60 penetrates the motion channel 23 and moves left and right within the motion channel 23.

[0058] The following briefly describes the processing of the six-sided drilling and milling machining center 100 of the present invention:

[0059] The clamping conveyor 30 clamps the sheet material and conveys it from front to back, delivering it to the bottom of the upper processing head 40. The side pressure positioning device 60 translates to the left and pushes against the right side of the sheet material to position it. The drive motor 402 drives the support frame 41 downward, and the upper drilling assembly 49 moves downward. The upper drilling assembly 49 drills holes on the side of the sheet material (except the bottom). The first driver 43 drives the upper processing spindle 42 downward. Depending on the processing situation, the second driver 47 drives the first pressure plate 44 downward, and the third driver 48 drives the second pressure plate 45 downward, thereby compressing the sheet material. The upper processing spindle 42 mills grooves on the top surface of the sheet material. The first driver 43 drives the upper processing spindle 42 downward, and the upper processing spindle 42 mills grooves on the side of the sheet material. The first and second lower machining spindles 51 and 52 mill grooves on the bottom surface of the plate, while the lower drilling assembly 55 drills holes in the bottom surface of the plate. During machining, the first and / or second supporting devices 53 and 54 move upward to support the plate. After machining is complete, the clamping and conveying device 30 carries the plate out.

[0060] The above disclosure is only a preferred embodiment of the present invention and cannot be used to limit the scope of the present invention. Therefore, equivalent changes made according to the claims of the present invention are within the scope of the present invention.

Claims

1. Upper processing head, characterized by: The cam is mounted on a first end of the support frame, and the second end of the support frame is mounted on a first end of the support frame, wherein the first drive is mounted on the support frame, and the second end of the support frame is mounted on the output end of the first drive. The first drive drives the upper processing spindle to move up and down, and the second press plate is sleeved on the spindle end. The first press plate is arranged to surround the spindle end, and the first press plate can be arranged to move up and down. The first press plate has a first avoidance position located at the top and a first pressing position located at the bottom, and the second press plate can be arranged to move up and down. The second press plate has a second avoidance position located at the top and a second pressing position located at the bottom, and the first press plate in the first pressing position and the second press plate in the second pressing position are flush with each other, and the first press plate surrounds the second press plate, and the press plate in the first avoidance position The first pressure plate is located above the second pressure plate in the second downward pressing position, and the first pressure plate in the first downward pressing position is located below the second pressure plate in the second avoidance position; the first pressure plate semi-surrounds the spindle end, and the first pressure plate in the first downward pressing position semi-surrounds the second pressure plate in the second downward pressing position, and the right end of the second pressure plate exceeds the first pressure plate; the second pressure plate is connected to a dust cover, and the second pressure plate is provided with an installation gap for accommodating a tool, and the installation gap is connected to the dust cover; the first pressure plate includes a left-side downward pressing structure provided on the left side of the spindle end, a right-side downward pressing structure provided on the right side of the spindle end, and a rear-side downward pressing structure provided on the rear side of the spindle end, the bottom of the left-side downward pressing structure is provided with an avoidance groove extending along the left-right direction, the bottom of the right-side downward pressing structure is provided with an avoidance groove extending along the left-right direction, and the bottom of the rear-side downward pressing structure is provided with an avoidance groove extending along the front-back direction.

2. The upper processing head according to claim 1, characterized in that: The installation gap includes a circular gap and a square gap, the circular gap is connected to the square gap, and the circular gap and the square gap are arranged in front and behind.

3. The upper processing head according to claim 1, characterized in that: Small pressing plates are installed at the bottoms of the left side pressing structure, the right side pressing structure and the rear side pressing structure.

4. The upper processing head according to claim 1, characterized in that: It also includes a second driver and a third driver, the second driver and the third driver are respectively installed on the upper processing spindle, the first pressure plate is installed on the output end of the second driver, the second driver drives the first pressure plate to move up and down, the second pressure plate is installed on the output end of the third driver, and the third driver drives the second pressure plate to move up and down.

5. Six-sided drilling and milling machining center, characterized by: It includes a frame, a processing machine, a clamping and conveying device and an upper processing head as described in any one of claims 1 to 4, the processing machine is installed on the frame, the frame is formed with a crossbeam arranged in the left and right directions above the processing machine, the upper processing head is installed on the crossbeam in a left-right sliding manner, the clamping and conveying device is installed on the frame, the clamping and conveying device is arranged on the left side of the processing machine, the clamping and conveying device is used to clamp the plate and convey the clamped plate in the front and rear directions, the first pressing plate in the first pressing position and the second pressing plate in the second pressing position respectively press the plate.

6. The six-sided drilling and milling machining center according to claim 5, characterized in that: It also includes a lower processing head, the processing machine includes a front worktable and a rear worktable, the front worktable and the rear worktable are arranged in front of each other, a movement channel is formed between the front worktable and the rear worktable, the front worktable and the rear worktable can be adjusted forward and backward, the lower processing head is arranged directly below the movement channel, the lower processing head includes a first lower processing spindle and a second lower processing spindle, the first lower processing spindle and the second lower processing spindle are arranged side by side in a left and right manner, a first supporting device is installed at the right end of the second lower processing spindle, a second supporting device is installed between the first lower processing spindle and the second lower processing spindle, the first supporting device and the second supporting device can be selectively raised to a position flush with the processing platform when the lower processing head processes the bottom surface of the plate.

7. The six-sided drilling and milling machining center according to claim 6, characterized in that: The first supporting device includes a first lifting cylinder and a first supporting block. The first supporting block is installed at the output end of the first lifting cylinder. The first lifting cylinder drives the first supporting block to move up and down. The rear end of the first supporting block extends backward to form an auxiliary supporting structure. The width of the auxiliary supporting structure is smaller than the width of the first supporting block.

Images