A multi-axis machining center with automatic loading and unloading

Abstract

The present invention relates to the technical field of 3C thin sheet processing equipment, and in particular to a multi-axis machining center with automatic loading and unloading, including a base. A Y-axis traveling device is provided at the lower part of the base, an X-axis traveling device is provided above the base, a Z-axis traveling device is provided on the X-axis traveling device, a machine head assembly is provided on the Z-axis traveling device, a Z-axis driving cylinder is provided on the front side of the machine head assembly, an X-axis driving cylinder is provided at the movable end of the Z-axis driving cylinder, and a suction cup device is provided on the X-axis driving cylinder. The first suction cup device includes a rotating device, an extension block, a hollow frame-shaped main body, and four pneumatic suction cups. A material rack is provided on the front side of the base, and two inclined automatic clamps are provided on the rear side. By providing a double-station suction cup device with multi-axis drive on the machining head, the present invention integrates material processing and loading / unloading, not only simplifies the equipment structure, reduces costs, but also improves work efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of 3C thin sheet processing equipment, and in particular to a multi-axis machining center with automatic loading and unloading. Background Art

[0002] With the development of technology, the quality requirements for 3C thin sheets such as glass, ceramic sheets, glass-ceramic sheets, and sapphire are getting higher and higher. Because of the thin and fragile structure of 3C thin sheets, they cannot withstand too much force. Not only is it inconvenient for loading and unloading, but also it is difficult for existing jigs to accurately and stably clamp and position 3C thin sheets.

[0003] Therefore, it is necessary to provide a 3C thin sheet machining center to achieve automatic loading and unloading and accurately position the fragile structure of 3C thin sheets without causing damage, thereby facilitating more refined processing of 3C thin sheets. Summary of the Invention

[0004] Other features and advantages of the present invention will be described in the following specification, and will be partially obvious from the specification, or understood by implementing the present invention. The objectives and other advantages of the present invention can be realized and obtained through the structures specifically pointed out in the specification, claims, and other drawings of the specification.

[0005] The object of the present invention is to overcome the above deficiencies and provide a multi-axis machining center with automatic loading and unloading.

[0006] To achieve the above object, the technical solution of the present invention is: a multi-axis machining center with automatic loading and unloading, including a base. Above the base, there is a gantry in the X-axis direction. Below the base, there are tracks in the Y-axis direction. At the lower part of the base, there is a Y-axis traveling device that cooperates with the tracks. The gantry includes a cross beam in the X-axis direction. On the front side of the cross beam, there is an X-axis traveling device. The first moving part of the X-axis traveling device that moves along the X-axis direction is connected to a Z-axis traveling device. The second moving part of the Z-axis traveling device that moves along the Z-axis direction is connected to a head assembly. On the front side of the head assembly, there is a Z-axis driving cylinder. At the moving end of the Z-axis driving cylinder, there is an X-axis driving cylinder. The X-axis driving cylinder is a two-way driving cylinder, which includes a negative moving end and a positive moving end. On the positive moving end, there is a first suction cup device. The first suction cup device includes a rotating device, an extension block, a hollow frame-shaped main body, and four pneumatic suction cups. One end of the extension block is connected to the lower part of the rotating device, and the other end of the extension block is connected to the outer side of a corner of the frame-shaped main body. The rotating device is used to rotate the frame-shaped main body around the X-axis direction. The four pneumatic suction cups are distributed in a rectangle on the lower side of the frame-shaped main body. The frame-shaped main body is surrounded by a left side, a right side, a front side, and a rear side. The front side is a narrow side. On the upper side of the rear side, there is an interface. Between the two pneumatic suction cups on the left side and between the two pneumatic suction cups on the right side, there are both limit bars. On the negative moving end, there is a second suction cup device symmetric to the first suction cup device; on the upper side of the base, there is a bearing plate. In front of the bearing plate, there is a material rack. Behind the bearing plate, there are two inclined automatic fixtures; the material rack includes a blank placement rack and a finished product placement rack. On both the blank placement rack and the finished product placement rack, there are spaced material sockets; the inclined automatic fixture includes a main body box. At the top of the main body box, there is a fixture assembly. On both sides of the fixture assembly, there are positioning clamping blocks and clamping clamping blocks. The positioning clamping blocks and the clamping clamping blocks are both L-shaped and are arranged diagonally with the fixture assembly as the center. The clamping clamping block is fixed to the moving end of the first driving cylinder provided on the main body box. The positioning clamping block is fixedly connected to the main body box or fixed to the moving end of the second driving cylinder provided on the main body box. The first driving cylinder and the second driving cylinder are both horizontally arranged, and the pushing direction of the first driving cylinder and / or the second driving cylinder is downward inclined.

[0007] Further, the X-axis traveling device includes a driving motor, a lead screw connected to the output end of the driving motor, and a nut seat provided on the lead screw. The lead screw is parallel to the X-axis direction. The nut seat serves as the first moving part and is connected to the Z-axis traveling device; on both the upper and lower sides of the lead screw, there are guide rails. The X-axis traveling device is provided in a chute that cooperates with the guide rails.

[0008] Further, the fixture assembly includes a vacuum fixture main body and a transition plate arranged up and down. On the side of the transition plate, there are several air valve interfaces. The air valve interfaces are correspondingly communicated with several air holes provided on the top surface of the transition plate. In the middle of the vacuum fixture main body, there is a concave cavity. On the top surface of the vacuum fixture main body, there are capillary holes communicated with the concave cavity. There are two air valve interfaces and two concave cavities. The two air valve interfaces are respectively communicated with the corresponding concave cavities through independent air holes.

[0009] Furthermore, an accordion seal is sleeved on the connection part of the first driving cylinder and the clamping block. The clamping block is composed of a movable end connecting plate, a block mounting plate, and a block. One end of the block mounting plate is fixed to the upper part of the movable end connecting plate, and the block is arranged on the top surface of the block mounting plate. The block mounting plate is in a horizontal angled shape, and the block is composed of a short block and a long block, which are respectively arranged at both ends of the block mounting plate. The positioning block, the clamping block, the first driving cylinder, and the second driving cylinder are symmetrically arranged on both sides of the fixture assembly.

[0010] Furthermore, the blank placing rack includes a left vertical rack, a right vertical rack, and a lower bottom rack. The lower bottom rack is arranged between the left vertical rack and the right vertical rack. Positioning blocks are provided on the upper parts of the left vertical rack and the right vertical rack. Symmetrical wave-shaped grooves are provided on the inner sides of the two positioning blocks. The lower bottom rack is provided with tooth grooves. The material socket is composed of the wave-shaped grooves and the tooth grooves. The material sheet is vertically inserted between the concave parts of the two wave-shaped grooves and the tooth grooves.

[0011] Furthermore, the rack includes a rack body. The bottom of the blank placing rack is slidably connected to the rack body, and the blank placing rack can slide along the Y-axis direction. The structure of the finished product placing rack is the same as that of the blank placing rack. A rotating mechanism is provided on the bearing plate, and a gear that rotates around the Z-axis direction is provided at the output end of the rotating mechanism. The gear is arranged between the blank placing rack and the finished product placing rack, and both sides of the gear are meshed with the Y-axis direction racks provided on the blank placing rack and the finished product placing rack respectively.

[0012] Furthermore, the machine head assembly includes a rotation driving device and a tool module arranged at the output end of the rotation driving device. The tool module includes a cylindrical grinding head for contacting the material, and the cylindrical grinding head is composed of at least two cylindrical sections with different diameters.

[0013] Furthermore, an electromagnetic rotation combination is provided between the transition plate and the main body box. The electromagnetic rotation combination includes a rotating column device and an electromagnet. The lower part of the rotating column device is fixed to the main body box, and an electromagnet is fixed to the output end of the upper part of the rotating column device. A magnetic part that is cooperatively connected with the electromagnet is provided on the bottom surface of the transition plate.

[0014] Furthermore, there are four such electromagnetic rotation combinations, and the four electromagnetic rotation combinations are respectively directly below the four corners of the vacuum fixture main body.

[0015] Furthermore, it includes a control center, which is electrically connected to each driving source and is used to control their starting and stopping.

[0016] By adopting the above technical solutions, the beneficial effects of the present invention are:

[0017] 1. By setting a dual-station suction cup device driven by multiple axes on the processing head, the present invention integrates material processing and loading / unloading, which not only simplifies the equipment structure, reduces costs, but also improves work efficiency. At the same time, the special suction cup frame structure of the present invention enables multiple suction cups to synchronously adsorb materials, which not only enables rapid and stable clamping, but also enables accurate positioning of material loading and unloading.

[0018] 2. One of the automatic fixtures of the present invention can adopt an integrated cylinder structure and accurately position 3C thin sheets such as glass, ceramic sheets, glass-ceramic sheets, and sapphires through a diagonal clamping working method; second, it can adapt to various processing modes, namely product contour engraving processing and large-surface precision engraving and milling processing of products; third, the driving cylinder is inclinedly installed. When the clamping block is not clamped, the upper surface of the clamping block is lower than the surface of the product vacuum fixture, which is convenient for various tool processing. When clamping the product, according to the inclination angle of the cylinder body, the clamping block will tilt upwards obliquely with the lever and be 4-5 mm higher than the product, which can completely clamp and position the product; fourth, the positioning accuracy of the fixture is 0.01-0.02 mm, which belongs to high-precision positioning and far exceeds the existing products on the current market. It can reduce the incoming material size, and more importantly, it can reduce the processing time of the current process; fifth, it can quickly switch to the processing of products with different model sizes, and directly replace the vacuum fixture body on it. The production line adjustment is fast and convenient.

[0019] 3. The present invention also solves the defect that it is difficult for traditional linear machining centers to machine the rounded corners of materials. By setting a switchable electromagnetic rotation combination directly below the four corners of the vacuum fixture body, the material fixed on the vacuum fixture body can rotate around a specific axis to cooperate with the head tool to complete the machining of arcs such as rounded corners.

[0020] 4. The material rack of the present invention is provided with a slidable blank placement rack and a finished product placement rack. After the suction cup device clamps a piece of material from the blank placement rack and places it on the finished product placement rack after processing, the blank placement rack and the finished product placement rack move forward and backward through the gears provided between them, so that the suction cup device can pick up or place materials at the same position above the material rack, reducing the equipment failure rate and improving the grasping accuracy.

[0021] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the present disclosure.

[0022] Undoubtedly, such objects of the present invention and other objects will become more apparent after the detailed description of the preferred embodiments described in multiple drawings and illustrations below.

[0023] To make the above and other objects, features, and advantages of the present invention more obvious and understandable, one or several preferred embodiments are specifically exemplified below and described in detail in conjunction with the accompanying drawings as follows. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings are used to provide a further understanding of the present invention and form a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention.

[0025] In the accompanying drawings, the same components are denoted by the same reference numerals, and the drawings are schematic and not necessarily drawn to actual scale.

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings required for use in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only one or several embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can be obtained based on such accompanying drawings.

[0027] Figure 1 Structural schematic diagram of the present invention;

[0028] Figure 2 is Figure 1 Enlarged view of part A in;

[0029] Figure 3 is Figure 1 Enlarged view of part B in;

[0030] Figure 4 Structural diagram of the inclined automatic fixture of the present invention;

[0031] Figure 5 Side view structural diagram of the inclined automatic fixture of the present invention;

[0032] Figure 6 Structural schematic diagram of the fixture assembly of the present invention;

[0033] Figure 7 Structural schematic diagram of the material rack of the present invention;

[0034] Figure 8 Structural schematic diagram of the rotating column device of the present invention;

[0035] Figure 9 Principle schematic diagram of the rotating column device of the present invention;

[0036] Figure 10 Structural schematic diagram of the cylindrical grinding head of the present invention.

[0037] Description of Main Reference Numerals: (1 Main Box, 2 Fixture Assembly, 3 Clamping Block, 4 Positioning Block, 5 First Driving Cylinder, 6 Second Driving Cylinder, 7 Bellows Seal, 8 Base, 9 Gantry, 10 Cross Beam, 11 X-Axis Traveling Device, 12 Z-Axis Traveling Device, 13 Machine Head Assembly, 14 Z-Axis Driving Cylinder, 15 X-Axis Driving Cylinder, 16 First Suction Cup Device, 17 Rotating Device, 18 Extension Block, 19 Frame-Type Main Body, 20 Pneumatic Suction Cup, 21 Vacuum Fixture Main Body, 22 Transition Plate, 23 Narrow Edge, 24 Interface, 25 Limit Strip, 26 Second Suction Cup Device, 27 Carrier Plate, 28 Material Rack, 29 Inclined Automatic Fixture, 30 Blank Placing Rack, 31 Movable End Connecting Plate, 32 Clamping Block Mounting Plate, 33 Short Clamping Block, 34 Long Clamping Block, 35 Finished Product Placing Rack, 36 Guide Rail, 37 Slide Groove, 38 Left Stand, 39 Right Stand, 40 Lower Base Frame, 41 Positioning Block, 42 Wavy Groove, 43 Tooth Groove, 44 Gear, 45 Rack, 46 Cylindrical Grinding Head, 47 Rotating Column Device, 48 Electromagnet, 211 Concave Cavity, 212 Capillary Hole, 221 Air Valve Interface, 222 Air Hole, 281 Material Rack Main Body). Detailed Embodiment

[0038] The following will describe in detail the embodiments of the present invention in conjunction with the drawings and embodiments, so as to fully understand how the present invention uses technical means to solve technical problems and achieve the implementation process of technical effects and implement accordingly. It should be noted that as long as there is no conflict, the various embodiments in the present invention and the various features in each embodiment can be combined with each other, and the formed technical solutions are all within the protection scope of the present invention.

[0039] At the same time, in the following description, for the purpose of explanation, many specific details are set forth to provide a thorough understanding of the embodiments of the present invention. However, it is obvious to those skilled in the art that the present invention can be implemented without the specific details here or in the specific manner described.

[0040] The following disclosure provides many different embodiments or examples for implementing different components of the present invention. The following describes specific examples of elements and configurations to simplify the present invention. Of course, this is only an example and is not intended to be limiting. For example, in the following description, the first component being formed "above" or "on" the second component may include embodiments in which the first and second components are formed in direct contact, and may also include embodiments in which additional components are formed between the first and second components, such that the first and second components do not directly contact.

[0041] In addition, in the description of the present invention, it should be understood that the orientation or positional relationship indicated by terms such as "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0042] In the present invention, unless otherwise clearly defined and limited, terms such as "installed", "connected", "connected to", "fixed", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be directly connected, or indirectly connected through an intermediate medium, and can be the communication inside two elements or the interaction relationship between two elements. However, indicating a direct connection means that there is no connection relationship constructed through a transition structure between the two connected main bodies, and they are only connected through the connection structure to form a whole. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0043] Embodiment 1

[0044] As Figure 1-6As shown in the figure, a multi-axis machining center with automatic loading and unloading according to the present invention includes a base 8. Above the base 8, there is a gantry 9 in the X-axis direction. Below the base 8, there are tracks in the Y-axis direction, and a Y-axis traveling device cooperating with the tracks is provided at the lower part of the base 8. The gantry 9 includes a cross beam 10 in the X-axis direction. On the front side of the cross beam 10, there is an X-axis traveling device 11. The first moving part of the X-axis traveling device 11 that moves in the X-axis direction is connected to a Z-axis traveling device 12. The second moving part of the Z-axis traveling device 12 that moves in the Z-axis direction is connected to a spindle head assembly 13. On the front side of the spindle head assembly 13, there is a Z-axis driving cylinder 14. At the movable end of the Z-axis driving cylinder 14, there is an X-axis driving cylinder 15. The X-axis driving cylinder 15 is a two-way driving cylinder, which includes a negative movable end and a positive movable end. At the positive movable end, there is a first suction cup device 16. The first suction cup device 16 includes a rotating device 17, an extension block 18, a hollow frame-shaped main body 19, and four pneumatic suction cups 20. One end of the extension block 18 is connected to the lower part of the rotating device 17, and the other end of the extension block 18 is connected to the outer side of a corner of the frame-shaped main body 19. The rotating device 17 is used to rotate the frame-shaped main body 19 around the X-axis direction. The four pneumatic suction cups 20 are distributed in a rectangle on the lower side of the frame-shaped main body 19. The frame-shaped main body 19 is surrounded by a left side, a right side, a front side, and a rear side. The front side is a narrow side 23. On the upper side of the rear side, there is an interface 24. Between the two pneumatic suction cups 20 on the left side and between the two pneumatic suction cups 20 on the right side, there are both limiting strips 25. At the negative movable end, there is a second suction cup device 26 symmetrical to the first suction cup device 16; on the upper side of the base 8, there is a bearing plate 27. In front of the bearing plate 27, there is a material rack 28. Behind the bearing plate 27, there are two inclined automatic fixtures 29; the material rack 28 includes a blank placement rack 30 and a finished product placement rack 35. On both the blank placement rack 30 and the finished product placement rack 35, there are spaced material sockets; the inclined automatic fixture 29 includes a main body box 1. At the top of the main body box 1, there is a fixture assembly 2. On both sides of the fixture assembly 2, there are positioning clamping blocks 4 and clamping clamping blocks 3. The positioning clamping blocks 4 and the clamping clamping blocks 3 are both L-shaped and are arranged diagonally with the fixture assembly 2 as the center. The clamping clamping block 3 is fixed to the movable end of a first driving cylinder 5 provided on the main body box 1. The positioning clamping block 4 is fixedly connected to the main body box 1 or is fixed to the movable end of a second driving cylinder 6 provided on the main body box 1. The first driving cylinder 5 and the second driving cylinder 6 are both horizontally arranged, and the pushing directions of the first driving cylinder 5 and / or the second driving cylinder 6 are inclined downward.

[0045] The X-axis traveling device 11 includes a driving motor, a lead screw connected to the output end of the driving motor, and a nut seat provided on the lead screw. The lead screw is parallel to the X-axis direction, and the nut seat serves as the first moving part to connect the Z-axis traveling device 12; on both the upper and lower sides of the lead screw, there are guide rails 36, and the X-axis traveling device 11 is arranged in a sliding groove 37 cooperating with the guide rails 36.

[0046] The fixture assembly 2 includes a vacuum fixture main body 21 and a transition plate 22 arranged vertically. A plurality of air valve interfaces 221 are provided on the side of the transition plate 22, and the air valve interfaces 221 are correspondingly communicated with a plurality of air holes 222 provided on the top surface of the transition plate 22. A concave cavity 211 is provided in the middle of the vacuum fixture main body 21, and a capillary hole 212 communicated with the concave cavity 211 is provided on the top surface of the vacuum fixture main body 21. There are two air valve interfaces 221 and two concave cavities 211. The two air valve interfaces 221 are respectively communicated with the corresponding concave cavities 211 through independent air holes 222. An accordion seal 7 is sleeved on the connecting part of the first driving cylinder 5 and the clamping block 3. The clamping block 3 is composed of a movable end connecting plate 31, a clamp block mounting plate 32 and a clamp block. One end of the clamp block mounting plate 32 is fixed to the upper part of the movable end connecting plate 31, and the clamp block is arranged on the top surface of the clamp block mounting plate 32. The clamp block mounting plate 32 is in a horizontal angled shape. The clamp block is composed of a short clamp block 33 and a long clamp block 34. The short clamp block 33 and the long clamp block 34 are respectively arranged at both ends of the clamp block mounting plate 32. The short clamp block 33 and the long clamp block 34 form the above-mentioned L-shaped clamping block 3. The positioning clamp block 4, the clamping block 3, the first driving cylinder 5 and the second driving cylinder 6 are symmetrically arranged on both sides of the fixture assembly 2.

[0047] The blank placement rack 30 includes a left stand 38, a right stand 39 and a lower base frame 40. The lower base frame 40 is arranged between the left stand 38 and the right stand 39. Positioning blocks 41 are provided on the upper parts of the left stand 38 and the right stand 39. Symmetrical wave grooves 42 are provided on the inner sides of the two positioning blocks 41. The lower base frame 40 is provided with a tooth groove 43. The material socket is composed of the wave groove 42 and the tooth groove 43. The material sheet is vertically inserted between the concave parts of the two wave grooves 42 and the tooth groove 43. The structure of the finished product placement rack 35 is the same as that of the blank placement rack 30. The present invention further includes a control center, which is electrically connected to each driving source and is used to control its start and stop. The driving sources include, for example: the X / Y / Z-axis traveling device 12, the X / Z-axis driving cylinder 14, the first suction cup device 16, the first driving cylinder 5, etc. In addition, the present invention aims to protect the device structure as described in the claims. The specific connection scheme of the control center to each driving source is not within the protection scope of the present invention. The operation mode of the device structure of the present invention can be to manually trigger the switch buttons provided on each driving source one by one. Therefore, even if the control circuit is not provided, it will not cause an obstacle to the implementation of the present invention.

[0048] Embodiment 2

[0049] As Figure 1-10As shown in the figure, a multi-axis machining center with automatic loading and unloading according to the present invention includes a base 8. Above the base 8, there is a gantry 9 in the X-axis direction. Below the base 8, there are tracks in the Y-axis direction, and a Y-axis traveling device matching the tracks is provided at the lower part of the base 8. The gantry 9 includes a cross beam 10 in the X-axis direction. On the front side of the cross beam 10, there is an X-axis traveling device 11. A first moving part that moves along the X-axis direction provided on the X-axis traveling device 11 is connected to a Z-axis traveling device 12. A second moving part that moves along the Z-axis direction provided on the Z-axis traveling device 12 is connected to a machine head assembly 13. On the front side of the machine head assembly 13, there is a Z-axis driving cylinder 14. At the movable end of the Z-axis driving cylinder 14, there is an X-axis driving cylinder 15. The X-axis driving cylinder 15 is a bidirectional driving cylinder, which includes a negative moving end and a positive moving end. At the positive moving end, there is a first suction cup device 16. The first suction cup device 16 includes a rotating device 17, an extension block 18, a hollow frame-shaped main body 19, and four pneumatic suction cups 20. One end of the extension block 18 is connected to the lower part of the rotating device 17, and the other end of the extension block 18 is connected to the outer side of a corner of the frame-shaped main body 19. The rotating device 17 is used to rotate the frame-shaped main body 19 around the X-axis direction. The four pneumatic suction cups 20 are distributed in a rectangle on the lower side of the frame-shaped main body 19. The frame-shaped main body 19 is surrounded by a left side, a right side, a front side, and a rear side. The front side is a narrow side 23. On the upper side of the rear side, there is an interface 24. Limiting strips 25 are provided between the two pneumatic suction cups 20 on the left side and between the two pneumatic suction cups 20 on the right side. At the negative moving end, there is a second suction cup device 26 symmetrical to the first suction cup device 16; on the upper side of the base 8, there is a bearing plate 27. In front of the bearing plate 27, there is a material rack 28. Behind the bearing plate 27, there are two inclined automatic fixtures 29; the material rack 28 includes a blank placement rack 30 and a finished product placement rack 35. The blank placement rack 30 and the finished product placement rack 35 are both provided with spaced material sockets; the inclined automatic fixture 29 includes a main body box 1. At the top of the main body box 1, there is a fixture assembly 2. On both sides of the fixture assembly 2, there are positioning clamping blocks 4 and clamping clamping blocks 3. The positioning clamping blocks 4 and the clamping clamping blocks 3 are both L-shaped and are arranged diagonally with the fixture assembly 2 as the center. The clamping clamping block 3 is fixed to the movable end of a first driving cylinder 5 provided on the main body box 1. The positioning clamping block 4 is fixedly connected to the main body box 1 or is fixed to the movable end of a second driving cylinder 6 provided on the main body box 1. The first driving cylinder 5 and the second driving cylinder 6 are both horizontally arranged, and the pushing directions of the first driving cylinder 5 and / or the second driving cylinder 6 are inclined downward.

[0050] The X-axis traveling device 11 includes a driving motor, a lead screw connected to the output end of the driving motor, and a nut seat provided on the lead screw. The lead screw is parallel to the X-axis direction, and the nut seat serves as the first moving part to connect the Z-axis traveling device 12; guide rails 36 are provided on both the upper and lower sides of the lead screw. The X-axis traveling device 11 is arranged in a sliding groove 37 that matches the guide rails 36.

[0051] The fixture assembly 2 includes a vacuum fixture main body 21 and a transition plate 22 arranged vertically. A plurality of air valve interfaces 221 are provided on the side surface of the transition plate 22, and the air valve interfaces 221 are correspondingly communicated with a plurality of air holes 222 provided on the top surface of the transition plate 22. A concave cavity 211 is provided in the middle of the vacuum fixture main body 21, and a capillary hole 212 communicated with the concave cavity 211 is provided on the top surface of the vacuum fixture main body 21. Both the air valve interfaces 221 and the concave cavity 211 are two, and the two air valve interfaces 221 are respectively communicated with the corresponding concave cavity 211 through independent air holes 222. An accordion seal 7 is sleeved on the connecting part of the first driving cylinder 5 and the clamping block 3. The clamping block 3 is composed of a movable end connecting plate 31, a clamping block mounting plate 32 and a clamping block. One end of the clamping block mounting plate 32 is fixed to the upper part of the movable end connecting plate 31, and the clamping block is arranged on the top surface of the clamping block mounting plate 32; the clamping block mounting plate 32 is in a horizontal angled shape, and the clamping block is composed of a short clamping block 33 and a long clamping block 34, and the short clamping block 33 and the long clamping block 34 are respectively arranged at both ends of the clamping block mounting plate 32; the positioning block 4 and the clamping block 3, the first driving cylinder 5 and the second driving cylinder 6 are symmetrically arranged on both sides of the fixture assembly 2.

[0052] The material rack 28 includes a material rack main body 281. The bottom of the blank placing rack 30 is slidably connected to the material rack main body 281, and the blank placing rack 30 can slide along the Y-axis direction. The blank placing rack 30 includes a left vertical rack 38, a right vertical rack 39 and a lower bottom rack 40. The lower bottom rack 40 is arranged between the left vertical rack 38 and the right vertical rack 39. Positioning blocks 41 are provided on the upper parts of the left vertical rack 38 and the right vertical rack 39. Symmetrical wave-shaped grooves 42 are provided on the inner sides of the two positioning blocks 41. The lower bottom rack 40 is arranged in a tooth groove 43. The material socket is composed of the wave-shaped groove 42 and the tooth groove 43. The material sheet is vertically inserted between the concave parts of the two wave-shaped grooves 42 and the tooth groove 43. The structure of the finished product placing rack 35 is the same as that of the blank placing rack 30. A rotating mechanism is provided on the bearing plate 27. The output end of the rotating mechanism is provided with a gear 44 rotating around the Z-axis direction. The gear 44 is arranged between the blank placing rack 30 and the finished product placing rack 35, and both sides of the gear 44 are meshed with Y-axis direction racks 45 provided on the blank placing rack 30 and the finished product placing rack 35 respectively.

[0053] The machine head assembly 13 includes a rotation driving device and a tool module arranged at the output end of the rotation driving device. The tool module includes a cylindrical grinding head 46 for contacting the material, and the cylindrical grinding head 46 is at least composed of two cylindrical sections with different diameters.

[0054] An electromagnetic rotation combination is provided between the transition plate 22 and the main body box 1. The electromagnetic rotation combination includes a rotating column device 47 and an electromagnet 48. The lower part of the rotating column device 47 is fixed to the main body box 1, and the output end of the upper part of the rotating column device 47 is fixed with the electromagnet 48. A magnetic part for cooperating with the electromagnet 48 is provided on the bottom surface of the transition plate 22. There are four electromagnetic rotation combinations, and the four electromagnetic rotation combinations are respectively directly below the four corners of the vacuum fixture main body 21.

[0055] Working principle: The first suction cup device 16 and the second suction cup device 26 of the present invention move above the blank placement rack 30 of the material rack 28. The Z-axis driving cylinder 14 pushes the first suction cup device 16 and the second suction cup device 26 downward. The rotating device 17 rotates the first suction cup device 16 and the second suction cup device 26 to make the pneumatic suction cup 20 adsorb the vertically placed blank. After the pneumatic suction cup 20 holds the blank, the first suction cup device 16 and the second suction cup device 26 rise. The Y-axis traveling device controls the base 8 to move forward until the inclined automatic fixture 29 is located below the first suction cup device 16 and the second suction cup device 26. At this time, the X-axis driving cylinder 15 opens, and the two blanks are respectively placed on the vacuum jig main body 21. The positioning clamping block 4 and the clamping block 3 clamp and adjust the position of the blank. Then the vacuum jig main body 21 adsorbs and fixes the blank. The Z-axis traveling device 12 controls the head assembly 13 to descend to process the outer peripheries of the two blanks in sequence. In this embodiment, the blank to be processed is a rectangular thin sheet with rounded corners at the four corners. The cylindrical grinding head 46 of the head assembly 13 performs linear processing along the outer periphery of the rectangular thin sheet under the drive of the X-axis traveling device 11 and the Y-axis traveling device. When the cylindrical grinding head 46 moves to the middle of the rounded corner, the Z-axis traveling device 12 controls the cylindrical grinding head 46 to descend. The larger-diameter cylinder section on the cylindrical grinding head 46 contacts the thin sheet. At this time, the power supply of the other three electromagnetic rotation combinations far from the rounded corner below the vacuum jig main body 21 is cut off, and only the connection between the rotating column device 47 facing the center of the rounded corner and the vacuum jig main body 21 is retained. At the same time, the rotating column device 47 is started to rotate, driving the vacuum jig main body 21 to rotate, so that the blank rotates along the center of the rounded corner closely against the cylindrical grinding head 46 to complete the processing of the rounded corner. After processing the rounded corner, the cylindrical grinding head 46 rises to continue processing the linear outer periphery of the thin sheet. After both thin sheets are processed, the first suction cup device 16 and the second suction cup device 26 grab the thin sheets and place them on the finished product placement rack 35. Among them, the blank placement rack 30 and the finished product placement rack 35 can slide along the Y-axis direction on the material rack 28. After the first suction cup device 16 and the second suction cup device 26 pick up a piece of material from the blank placement rack 30 and place it on the finished product placement rack 35 after processing, the blank placement rack 30 and the finished product placement rack 35 move forward and backward through the gear 44 provided between them, so that the suction cup device can pick up or place materials at the same position above the material rack 28, reducing the equipment failure rate and improving the grasping accuracy.

[0056] The present invention further includes a control center, which is electrically connected to each driving source and is used to control its start and stop. The driving sources include, for example: the X / Y / Z-axis traveling device 12, the X / Z-axis driving cylinder 14, the first suction cup device 16, the first driving cylinder 5, etc. In addition, the present invention aims to protect the equipment structure as described in the claims. The specific connection scheme of the control center to each driving source is not within the protection scope of the present invention. The operation mode of the equipment structure of the present invention can trigger the switch buttons provided on each driving source manually one by one. Therefore, even if the control circuit is not provided, it will not hinder the implementation of the present invention.

[0057] It should be understood that the embodiments disclosed in the present invention are not limited to the specific processing steps or materials disclosed herein, but should extend to equivalent alternatives of such features understood by those of ordinary skill in the relevant art. It should also be understood that the terms used herein are for the purpose of describing particular embodiments only and do not imply limitation.

[0058] In addition, the described features or characteristics may be combined in any other suitable manner into one or more embodiments. In the above description, some specific details, such as thickness, quantity, etc., are provided to provide a comprehensive understanding of the embodiments of the present invention. However, those skilled in the relevant art will understand that the present invention can be implemented without one or more of the above specific details or can also be implemented using other methods, components, materials, etc.

Claims

1. A multi-axis machining center with automatic loading and unloading, comprising a base. Above the base, there is a gantry in the X-axis direction. Below the base, there are tracks in the Y-axis direction. At the lower part of the base, there is a Y-axis traveling device that cooperates with the tracks. The gantry includes a crossbeam in the X-axis direction. On the front side of the crossbeam, there is an X-axis traveling device. Characterized in that: The first moving part of the X-axis traveling device that moves along the X-axis direction is connected to a Z-axis traveling device. The second moving part of the Z-axis traveling device that moves along the Z-axis direction is connected to a machine head assembly. On the front side of the machine head assembly, there is a Z-axis driving cylinder. At the movable end of the Z-axis driving cylinder, there is an X-axis driving cylinder. The X-axis driving cylinder is a bidirectional driving cylinder, which includes a negative movable end and a positive movable end. On the positive movable end, there is a first suction cup device. The first suction cup device includes a rotating device, an extension block, a hollow frame-shaped main body, and four pneumatic suction cups. One end of the extension block is connected to the lower part of the rotating device, and the other end of the extension block is connected to the outside of a corner of the frame-shaped main body. The rotating device is used to rotate the frame-shaped main body around the X-axis direction. The four pneumatic suction cups are distributed in a rectangle on the lower side of the frame-shaped main body. The frame-shaped main body is surrounded by a left side, a right side, a front side, and a rear side. The front side is a narrow side. On the upper side of the rear side, there is an interface. Between the two pneumatic suction cups on the left side and between the two pneumatic suction cups on the right side, there are both limiting strips. On the negative movable end, there is a second suction cup device that is symmetrical to the first suction cup device; on the upper side of the base, there is a bearing plate. In front of the bearing plate, there is a material rack. Behind the bearing plate, there are two inclined automatic fixtures; the material rack includes a blank placement rack and a finished product placement rack. On both the blank placement rack and the finished product placement rack, there are spaced material sockets; the inclined automatic fixture includes a main body box. At the top of the main body box, there is a fixture assembly. On both sides of the fixture assembly, there are positioning clamping blocks and clamping clamping blocks. The positioning clamping blocks and the clamping clamping blocks are both L-shaped and are arranged diagonally with the fixture assembly as the center. The clamping clamping block is fixed to the movable end of the first driving cylinder provided on the main body box. The positioning clamping block is fixedly connected to the main body box or fixed to the movable end of the second driving cylinder provided on the main body box. Both the first driving cylinder and the second driving cylinder are horizontally arranged, and the pushing direction of the first driving cylinder and / or the second driving cylinder is downward inclined; the machine head assembly includes a rotation driving device and a tool module provided at the output end of the rotation driving device. The tool module includes a cylindrical grinding head for contacting the material. The cylindrical grinding head is at least composed of two cylindrical sections with different diameters; between the transition plate and the main body box, there is an electromagnetic rotation combination. The electromagnetic rotation combination includes a rotating column device and an electromagnet. The lower part of the rotating column device is fixed to the main body box, and the output end of the upper part of the rotating column device is fixed with an electromagnet. On the bottom surface of the transition plate, there is a magnetic part that cooperates and connects with the electromagnet; there are four such electromagnetic rotation combinations, and the four electromagnetic rotation combinations are respectively directly below the four corners of the vacuum fixture main body.

2. The multi-axis machining center with automatic loading and unloading according to claim 1, Characterized in that: The X-axis traveling device includes a driving motor, a lead screw connected to the output end of the driving motor, and a nut seat provided on the lead screw. The lead screw is parallel to the X-axis direction. The nut seat serves as the first moving part and is connected to the Z-axis traveling device; on both the upper and lower sides of the lead screw, there are guide rails. The X-axis traveling device is arranged in a chute that cooperates with the guide rails.

3. The multi-axis machining center with automatic loading and unloading according to claim 1, characterized in that: The fixture assembly includes a vacuum fixture main body and a transition plate arranged up and down. Several air valve interfaces are provided on the side of the transition plate, and the air valve interfaces are correspondingly communicated with several air holes provided on the top surface of the transition plate. A concave cavity is provided in the middle of the vacuum fixture main body, and capillary holes communicated with the concave cavity are provided on the top surface of the vacuum fixture main body. There are two air valve interfaces and two concave cavities. The two air valve interfaces are respectively communicated with the corresponding concave cavities through independent air holes.

4. The multi-axis machining center with automatic loading and unloading according to claim 1, characterized in that: An accordion seal sleeve is sleeved on the connection part of the first driving cylinder and the clamping block. The clamping block is composed of a movable end connecting plate, a clamping block mounting plate and a clamping block. One end of the clamping block mounting plate is fixed to the upper part of the movable end connecting plate, and the clamping block is arranged on the top surface of the clamping block mounting plate; the clamping block mounting plate is in a horizontal folding angle shape, and the clamping block is composed of a short clamping block and a long clamping block. The short clamping block and the long clamping block are respectively arranged at both ends of the clamping block mounting plate; the positioning clamping block and the clamping block, the first driving cylinder and the second driving cylinder are symmetrically arranged on both sides of the fixture assembly.

5. The multi-axis machining center with automatic loading and unloading according to claim 1, characterized in that: The blank placement rack includes a left vertical rack, a right vertical rack and a lower bottom rack. The lower bottom rack is arranged between the left vertical rack and the right vertical rack. Positioning blocks are provided on the upper parts of the left vertical rack and the right vertical rack. Symmetrical wave grooves are provided on the inner sides of the two positioning blocks. The lower bottom rack is provided with tooth grooves. The material socket is composed of wave grooves and tooth grooves. The material sheet is vertically inserted between the concave parts of the two wave grooves and the tooth grooves.

6. The multi-axis machining center with automatic loading and unloading according to claim 5, characterized in that: The rack includes a rack main body. The bottom of the blank placement rack is slidably connected to the rack main body. The blank placement rack can slide along the Y-axis direction. The structure of the finished product placement rack is the same as that of the blank placement rack; a rotating mechanism is provided on the bearing plate, and a gear rotating around the Z-axis direction is provided at the output end of the rotating mechanism. The gear is arranged between the blank placement rack and the finished product placement rack, and both sides of the gear are meshed with the Y-axis direction racks provided on the blank placement rack and the finished product placement rack respectively.

7. The multi-axis machining center with automatic loading and unloading according to any one of claims 1-6, characterized in that: It includes a control center, and the control center is electrically connected to each driving source and is used to control its start and stop.

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