Flexible production line of machining center

Abstract

The invention relates to the technical field of flexible production lines, in particular to a machining center flexible production line which is characterized in that a plurality of machining centers are sequentially arranged in the first horizontal direction; the track device extends in the first horizontal direction; the loading and unloading device is adjacent to the track device and is used for loading or unloading the tray workpieces; the temporary storage device is used for placing processed tray workpieces and / or tray workpieces to be processed; the transfer device is movably arranged in the rail device and is matched with the machining center, the feeding and discharging device and the temporary storage device in a taking and placing mode; and the transferring device is used for transferring the tray workpieces between the temporary storage device and the feeding and discharging device, transferring the tray workpieces between the temporary storage device and the machining centers, and / or transferring the tray workpieces between the feeding and discharging device and the machining centers. The workpiece transferring efficiency can be improved under the situation that multiple machining centers are arranged.

Description

Technical Field

[0001] The invention relates to the technical field of flexible production lines, and in particular to a flexible production line for a machining center. Background Art

[0002] A machining center is a multifunctional machine tool, commonly used in metal processing and manufacturing industries. It combines multiple functions such as cutting, milling, drilling and boring, and can perform multiple complex processing operations on the same device, greatly improving production efficiency and processing accuracy. It is widely used in aerospace, automotive industry, mold processing, electronics industry, medical equipment and other industries.

[0003] At present, the machining center mainly includes the main machine, control system, workbench, tool library and cooling system. Each part performs its own function, making the machining center have the characteristics of high degree of automation, rich functions, high machining precision and strong flexibility. However, with the current demand for machining capacity, multiple machining centers are usually set up at the same time to realize multi-threaded machining production. However, what comes with it is that large-scale machining workpieces need to be transferred to the machining center many times. However, based on the condition of setting up multiple machining centers, the traditional manual loading and unloading scheme is still used. The workpiece transfer process is time-consuming and labor-intensive, and there is a lag, which can no longer meet the needs of large-scale and efficient transfer of workpieces.

[0004] Therefore, it is necessary to improve the existing technology.

[0005] The above information is presented as background information only to assist with understanding the present disclosure and no determination or admission is made as to whether any of the above may be used as prior art with respect to the present disclosure. Summary of the invention

[0006] The present invention provides a flexible production line for a machining center to solve the problem of insufficient workpiece transfer efficiency in the prior art based on a scenario of multiple machining centers.

[0007] To achieve the above object, the present invention provides the following technical solutions:

[0008] A flexible production line for a machining center comprises a plurality of machining centers, wherein the plurality of machining centers are arranged in sequence along a first horizontal direction;

[0009] Also includes:

[0010] a track device, the machining center being located on an adjacent side of the track device and extending along the first horizontal direction;

[0011] A loading and unloading device, arranged adjacent to the track device, for loading or unloading workpieces on the pallet;

[0012] A temporary storage device, located on a side of the track device away from the machining center, and used for placing pallet workpieces that have been processed and / or pallet workpieces to be processed;

[0013] A transfer device, which can be movably arranged in the track device, and respectively cooperates with the machining center, the loading and unloading device, and the temporary storage device;

[0014] The transfer device is used to transfer the pallet workpiece between the temporary storage device and the loading and unloading device, to transfer the pallet workpiece between the temporary storage device and the machining center, and / or to transfer the pallet workpiece between the loading and unloading device and the machining center.

[0015] Preferably, the temporary storage device includes a plurality of first brackets, and the plurality of first brackets are arranged in sequence along the first horizontal direction.

[0016] Preferably, the loading and unloading device comprises:

[0017] Rotating platform module;

[0018] A second bracket, disposed on the rotating platform module, for placing a pallet workpiece, and the rotating platform module is used to drive the second bracket to rotate horizontally;

[0019] And a locking mechanism is arranged on the rotating platform module, the second bracket has a locking hole, the locking mechanism is plugged into the locking hole, and when the locking mechanism is plugged into the locking hole, the second bracket is in a loading and unloading state.

[0020] Preferably, the loading and unloading devices are arranged in at least two groups, a part of the loading and unloading devices are used to perform loading operations, and another part of the loading and unloading devices are used to perform unloading operations.

[0021] Preferably, the transfer device comprises:

[0022] A displacement mechanism is slidably arranged on the track device;

[0023] A lifting mechanism, arranged on the displacement mechanism, and the displacement mechanism drives the lifting mechanism to move back and forth along the track device;

[0024] And a supporting mechanism, which is movably arranged on the lifting mechanism, and the supporting mechanism is used for horizontal telescopic displacement to the machining center, the loading and unloading device or the temporary storage device; when the supporting mechanism extends into the machining center, the loading and unloading device or the temporary storage device, the lifting mechanism is used to drive the lifting mechanism to move up and down, so that the supporting mechanism can lift or put down the pallet workpiece.

[0025] Preferably, the displacement mechanism comprises:

[0026] A displacement frame is slidably arranged on the track device, and the lifting mechanism is arranged on the displacement frame;

[0027] A displacement motor, arranged on the displacement frame;

[0028] A displacement gear, fixedly connected to the output shaft of the displacement motor;

[0029] and a displacement rack, which is arranged on the track device and extends along the first horizontal direction, and the displacement rack is meshed with the displacement gear.

[0030] Preferably, the lifting mechanism comprises:

[0031] A lifting frame is slidably arranged on the displacement mechanism along a vertical direction, and the supporting mechanism is arranged on the lifting frame;

[0032] A lifting motor, arranged on the lifting frame;

[0033] A first lifting sprocket, rotatably disposed on the lifting frame and drivingly connected to the lifting motor;

[0034] a second lifting sprocket, rotatably disposed on the displacement mechanism, and the second lifting sprocket is located above the first lifting sprocket;

[0035] and a lifting chain, two ends of which respectively cover and are fixed to the first lifting sprocket and the second lifting sprocket.

[0036] Preferably, the supporting mechanism comprises:

[0037] A supporting guide rail, disposed on the lifting mechanism and extending along a second horizontal direction, wherein the second horizontal direction is perpendicular to the first horizontal direction;

[0038] A supporting arm having a supporting portion for supporting a workpiece on a tray, wherein the supporting arm is slidably disposed on the supporting guide rail and can extend toward two opposite directions in the second horizontal direction respectively;

[0039] A supporting motor, arranged on the lifting mechanism;

[0040] A supporting gear, fixedly arranged on the output shaft of the supporting motor;

[0041] And a supporting rack is fixedly arranged on the supporting arm and extends along the second horizontal direction, and the supporting gear is meshed with the supporting rack.

[0042] Preferably, the supporting arm comprises:

[0043] An extension seat is slidably disposed on the supporting guide rail, and the supporting rack is fixedly disposed on the extension seat;

[0044] A supporting base is slidably disposed on the supporting base along a second horizontal direction, and the supporting portion is disposed on the supporting base;

[0045] and an adjusting module, which is arranged on the extension seat and connected to the supporting base, and is used for driving the supporting base to reciprocate to the two ends of the extension seat.

[0046] Preferably, a protection mechanism is also included, and the protection mechanism includes:

[0047] A machine tool enclosure, located in the vicinity of the machining center;

[0048] Loading and unloading enclosure, located in the vicinity of the loading and unloading device;

[0049] And a side enclosure is located in the vicinity of the end of the track device. The machine tool enclosure, the loading and unloading enclosure and the side enclosure are connected in sequence to form a closed protective space, and the pallet workpiece is transferred and displaced in the closed protective space.

[0050] Compared with the prior art, the present invention has the following beneficial effects:

[0051] The flexible production line of the machining center provided by the present invention is based on the setting of multiple machining centers. A track device is set up, and a temporary storage device and a loading and unloading device are set up at positions adjacent to the track device. At this time, a transfer device located on the track device and having a movable and adjustable function can automatically transfer the pallet workpiece; in one of the transfer modes, the transfer device can first transfer the pallet workpiece to be processed from the loading and unloading device to the temporary storage device for temporary storage. At this time, when the machining center needs to send in the workpiece to be processed, it only needs to transfer the pallet workpiece directly from the temporary storage device to the machining center through the transfer device, because the temporary storage device and the machining center are located on opposite sides of the track device. Therefore, the transfer range of the two is very small, and the transfer process is more efficient; accordingly, the processed pallet workpieces are also placed back on the temporary storage device in this way, and the replenishment time of the machining center is greatly shortened; at the same time, when the machining center is in the machining state, the transfer device can also take the processed pallet workpieces from the temporary storage device and put them into the loading and unloading device, and can also take the pallet workpieces to be processed from the loading and unloading device and put them into the temporary storage device, which makes good use of the machining time of the machining center to realize the loading and unloading actions of the pallet workpieces, and the waiting time in the material transfer process is greatly reduced, and the problem of insufficient workpiece transfer efficiency based on multiple machining centers is solved.

[0052] The present invention has other features and advantages, which will be apparent from or will be described in detail in the accompanying drawings and the following detailed description incorporated herein, which together serve to explain the specific principles of the invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0053] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0054] Figure 1 It is a structural schematic diagram of a flexible production line of a machining center provided by a preferred embodiment of the present invention;

[0055] Figure 2 It is a structural schematic diagram of a machining center from another perspective provided by a preferred embodiment of the present invention;

[0056] Figure 3 It is a schematic diagram of the internal structure of a loading and unloading device after being cut open according to a preferred embodiment of the present invention;

[0057] Figure 4 It is a structural schematic diagram of a track device and a transfer device provided by a preferred embodiment of the present invention;

[0058] Figure 5 It is a structural schematic diagram of a transfer device provided by a preferred embodiment of the present invention;

[0059] Figure 6 It is a structural schematic diagram of a transfer device provided by a preferred embodiment of the present invention from another perspective;

[0060] Figure 7 It is a structural schematic diagram of a transfer device provided by a preferred embodiment of the present invention from another perspective;

[0061] Figure 8 It is a structural schematic diagram of a supporting mechanism provided by a preferred embodiment of the present invention;

[0062] Fig. 9 is a structural schematic diagram of a supporting mechanism provided by a preferred embodiment of the present invention from another perspective;

[0063] Fig.10 It is a schematic diagram of the assembly relationship between the supporting arm and the pallet workpiece provided by a preferred embodiment of the present invention.

[0064] Reference numerals:

[0065] 1. Processing center;

[0066] 2. Track device; 21. First guide rail; 22. Second guide rail; 23. Reinforcement rod;

[0067] 3. Loading and unloading device; 31. Rotating platform module; 32. Second bracket; 33. Locking mechanism; 34. Locking hole;

[0068] 4. Temporary storage device;

[0069] 5. Transfer device;

[0070] 51, displacement mechanism; 511, displacement rack; 5111, slider; 512, displacement motor; 513, displacement gear; 514, displacement rack;

[0071] 52. lifting mechanism; 521. lifting frame; 522. lifting motor; 523. first lifting sprocket; 524. second lifting sprocket; 525. lifting chain; 526. guide column; 527. concentric shaft; 528. guide wheel;

[0072] 53. Supporting mechanism; 531. Supporting guide rail; 532. Supporting arm; 533. Supporting motor; 534. Supporting gear; 535. Supporting rack;

[0073] 6. Extension seat; 7. Support base; 8. Adjustment module; 9. Support part; 101. Machine tool enclosure; 102. Loading and unloading enclosure; 103. Side enclosure; 1001. Pallet workpiece. DETAILED DESCRIPTION

[0074] In order to make the purpose, features and advantages of the present invention more obvious and easy to understand, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described below are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0075] In the description of the present invention, it is to be understood that when a component is considered to be "connected" to another component, it may be directly connected to the other component or there may be a centrally disposed component. When a component is considered to be "disposed on" another component, it may be directly disposed on the other component or there may be a centrally disposed component.

[0076] In addition, terms such as "long", "short", "inside" and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings and are only used to facilitate the description of the present invention. They do not indicate or imply that the device or component referred to must have this specific direction or operate with a specific direction structure, and should not be understood as a limitation of the present invention.

[0077] The following is combined with Figure 1-10 The technical solution of the present invention is further illustrated by specific implementation methods.

[0078] Please refer to Figure 1 , an embodiment of the present invention provides a flexible production line for a machining center, including a machining center 1, a track device 2, a loading and unloading device 3, a temporary storage device 4 and a transfer device 5. Among them, the machining center 1 is set to be multiple, illustratively, it can be two, three or four, etc., and no specific limitation is made here. In this embodiment, the number of machining centers 1 is three as an example. On this basis, the specific type of the machining center 1 can be a vertical machining center 1 or a horizontal machining center 1. No limitation is made on the specific setting type of the machining center 1. No matter what kind of machining center 1 or machine tool structure is adopted, it should be included in the scope of interpretation of this scheme.

[0079] On this basis, the multiple machining centers 1 of this embodiment are arranged in sequence along the first horizontal direction. For the convenience of expression, in this component space rectangular coordinate system, the first horizontal direction is consistent with the x-axis direction. In addition, it also includes a second horizontal direction perpendicular to the first horizontal direction, which is positioned as the y-axis direction here, and also includes a z-axis direction consistent with the vertical direction.

[0080] Furthermore, the track device 2 is horizontally arranged and also extends along the first horizontal direction. In addition, the machining center 1 is located on an adjacent side of the track device 2, which can be understood as the machining center 1 being located on the first side of the track device 2. At the same time, the loading and unloading device 3 is arranged adjacent to the track device 2. In this embodiment, the loading and unloading device 3 is located on a side of the track device 2 close to the machining center 1, i.e., the first side. In other embodiments, the loading and unloading device 3 can also be arranged on a side of the track device 2 away from the machining center 1, i.e., the second side. The specific setting position of the loading and unloading device 3 is not limited here. The loading and unloading device 3 is used for loading or unloading the pallet workpiece 1001.

[0081] It should be explained that the pallet workpiece 1001 can be understood as an integral component consisting of a workpiece and a pallet. Usually, during the processing, the workpiece needs to be clamped. At this time, the pallet is needed to provide support and a clamping position for the workpiece. In this embodiment, the workpiece is operated as a whole during the transfer process with the pallet workpiece 1001; in addition, the loading and unloading referred to in the previous text can be understood as the loading and unloading operation between the flexible production line and the outside world, rather than the loading and unloading at the position of the machining center 1.

[0082] On this basis, the temporary storage device 4 is located on the adjacent side of the track device 2 away from the machining center 1, that is, the temporary storage device 4 is located on the second side of the track device 2; and is arranged opposite to the machining center 1 and the loading and unloading device 3, and the temporary storage device 4 is used to place the pallet workpieces 1001 that have been processed and / or the pallet workpieces 1001 to be processed. Based on this setting, by temporarily storing the pallet workpieces 1001, compared with the manual loading method, there is no need to transfer the pallet workpieces 1001 from a distance to the machining center 1, nor is there a need to transfer the processed pallet workpieces 1001 immediately to a storage space farther away, which is equivalent to effectively shortening the transfer distance and operation time between the pallet workpieces 1001 and the machining center 1, and provides a basis for quickly replacing the pallet workpieces 1001.

[0083] Furthermore, the transfer device 5 can be movably arranged in the track device 2. The transfer device 5 is used to grab and put down the pallet workpiece 1001 to perform a transfer function. During specific use, the transfer device 5 can be adjusted on the track device 2 so that the transfer device 5 can be respectively opposite to the machining center 1, the loading and unloading device 3 and the pick-up and placement device. Based on different corresponding scenarios, the transfer device 5 can be respectively coordinated with the machining center 1, the loading and unloading device 3 and the temporary storage device 4 to realize the pick-up and placement actions of the pallet workpiece 1001 at different devices.

[0084] Based on the above structural setting, the transfer device 5 includes at least the following three transfer situations:

[0085] The first transfer method is that the transfer device 5 is used to transfer the pallet workpiece 1001 between the temporary storage device 4 and the loading and unloading device 3 .

[0086] The second transfer method is used to transfer the pallet workpiece 1001 between the temporary storage device 4 and the machining center 1 .

[0087] The third transfer method is used to transfer the pallet workpiece 1001 between the loading and unloading device 3 and the machining center 1. It can be understood that the above three transfer methods can be combined and adjusted with each other, or only one of the transfer methods can be used. It only depends on the transfer requirements of the pallet workpiece 1001, and the specific transfer path is not restricted here.

[0088] Through the above-mentioned implementation mode, under the action of the track device 2 and the transfer device 5, the pallet workpiece 1001 can be flexibly called between the machining center 1, the loading and unloading device 3 and the pick-and-place device. More importantly, through the mechanical automation calling method, the time-consuming and labor-intensive manual transfer and the untimely calling problems can be avoided, which effectively solves the problem of insufficient workpiece transfer efficiency.

[0089] Reference Figure 2 In order to temporarily store the pallet workpiece 1001, the temporary storage device 4 includes a plurality of first brackets. In the present embodiment, the first bracket mainly includes two frame structures which are vertically arranged parallel to each other. The top of the frame can support the bottom of the pallet workpiece 1001, and a cavity is formed between the two frames for the transfer device 5 to extend into, so that it is convenient for the transfer device 5 to take away and put down the pallet, and the structural setting is reasonable.

[0090] Furthermore, multiple first brackets are arranged in sequence along the first horizontal direction. For example, the specific number of first brackets may be five, ten or twenty, etc. By arranging multiple brackets arranged in sequence along the first horizontal direction, on the one hand, the spacing accuracy between the first bracket and the rail device 2 can be maintained to facilitate precise coordination with the transfer device 5; on the other hand, the storage capacity of the pallet workpiece 1001 can also be increased, which is beneficial to the processing and transfer needs of large quantities of workpieces.

[0091] Reference Figure 2 and Figure 3 In this embodiment, the loading and unloading device 3 includes a rotating platform module 31, a second bracket 32 ​​and a locking mechanism 33. The rotating platform module 31 can adopt a rotating worktable structure, which mainly includes a base, a motor and a table, wherein the motor is installed on the base, the table is rotatably arranged on the base, and the output shaft of the motor is fixedly connected to the table, and the table is driven to rotate by the motor output torque meter to achieve the horizontal rotation function.

[0092] Furthermore, the second bracket 32 ​​is arranged on the rotating platform module 31 for placing the pallet workpiece 1001; specifically, the structure of the second bracket 32 ​​is similar to that of the first bracket, and also includes two parallel frames. In addition, a flat plate is fixedly arranged at the bottom of the second bracket 32, and the flat plate is fixedly mounted on the table top to realize the installation of the second bracket 32. At this time, the rotating platform module 31 is used to drive the second bracket 32 ​​to rotate horizontally, thereby being able to drive the angle of the pallet workpiece 1001 to deflect. The purpose of the above-mentioned setting is that the pallet workpiece 1001 is usually operated by a forklift during the loading and unloading process, and the relative position between the forklift and the rotating platform module 31 is prone to angular deviation. At this time, by starting the rotating platform module 31, the second bracket 32 ​​can be driven to be accurately aligned with the forklift, thereby reducing the alignment time, which is beneficial to improving the loading and unloading efficiency of the pallet workpiece 1001.

[0093] Furthermore, in order to improve the matching accuracy between the loading and unloading device 3 and the transfer device 5, the locking mechanism 33 provided in this embodiment is arranged on the base of the rotating platform module 31; the second bracket 32 ​​has a locking hole 34, and the locking mechanism 33 is plugged into the locking hole 34. When the locking mechanism 33 is plugged into the locking hole 34, the second bracket 32 ​​is in a loading and unloading state.

[0094] By adopting the above scheme, the pallet workpiece 1001 can obtain an angle locking effect when cooperating with the transfer device 5, so as to avoid obstruction of the connection action between the two due to angle shaking and offset; in one embodiment, the locking mechanism 33 includes a cylinder and a locking rod, wherein the cylinder is fixedly mounted on the rotating platform module 31 and is located below the second bracket 32, and the telescopic rod of the cylinder is vertically arranged upward; at the same time, the locking hole 34 is located on the flat plate, and the locking rod is fixedly arranged at the telescopic rod of the cylinder and faces the position of the locking hole 34. At this time, by starting the cylinder, the telescopic rod can be inserted into the locking hole 34, so as to lock and reinforce the second bracket 32.

[0095] Further, look back Figure 2 In order to improve the loading and unloading efficiency of the flexible production line, the loading and unloading devices 3 are set to at least two groups; illustratively, it can be two groups, four groups or five groups, etc. The specific number of loading and unloading devices 3 can be determined according to the number of machining centers 1 and the number of pallet workpieces 1001 transferred, and no specific limitation is made here; in the present embodiment, the loading and unloading devices 3 are set to two groups as an example, wherein a part of the loading and unloading devices 3 is used to perform loading operations, and another part of the loading and unloading devices 3 is used to perform unloading operations. Such a setting can enable different loading and unloading devices 3 to perform loading and unloading actions respectively, each performing its own function, and the loading and unloading operations are more orderly and efficient.

[0096] Reference Figure 4 and Figure 5In order to realize the displacement and transfer of the pallet workpiece 1001, the transfer device 5 includes a displacement mechanism 51, a lifting mechanism 52 and a supporting mechanism 53. Among them, the displacement mechanism 51 is slidably arranged on the track device 2, and the lifting mechanism 52 is arranged on the displacement mechanism 51. The displacement mechanism 51 is used to drive the lifting mechanism 52 to move back and forth along the track device 2, so that the displacement mechanism 51 can achieve position adjustment; at the same time, the supporting mechanism 53 is movably arranged on the lifting mechanism 52. During the displacement adjustment process of the displacement mechanism 51, the supporting mechanism 53 also realizes displacement adjustment along the first horizontal direction synchronously; the supporting mechanism 53 is used to horizontally telescopically move to the machining center 1, the loading and unloading device 3 or the temporary storage device 4, and when the supporting mechanism 53 extends into the machining center 1, the loading and unloading device 3 or the temporary storage device 4, the lifting mechanism 52 is used to drive the lifting mechanism 52 to move up and down, so that the supporting mechanism 53 can lift or put down the pallet workpiece 1001.

[0097] Based on the above structural setting, in order to realize the transportation of the pallet workpiece 1001, the relative position of the supporting mechanism 53 compared with the machining center 1, the loading and unloading device 3 and the temporary storage device 4 is first adjusted by the displacement mechanism 51. At this time, the supporting mechanism 53 has a telescopic function. By extending or extending, and cooperating with the lifting action of the lifting mechanism 52, the pallet can be taken and placed from the machining center 1, the loading and unloading device 3 and the temporary storage device 4. The overall action structure is reasonable and not easy to cause interference, which can well meet the action function requirements of efficient transfer.

[0098] Reference Figure 4 and Figure 5 The displacement mechanism 51 includes a displacement frame 511, a displacement motor 512, a displacement gear 513 and a displacement rack 514; wherein the displacement frame 511 is slidably arranged on the track device 2. In the present embodiment, the track device 2 mainly includes a first guide rail 21 and a second guide rail 22 which are parallel to each other, and also includes a reinforcing rod 23 which is fixedly arranged between the first guide rail 21 and the second guide rail 22, so as to form a stable guide rail structure; on this basis, sliders 5111 are respectively arranged on both sides of the bottom of the displacement frame 511, and the sliders 5111 have sliding grooves which match the first guide rail 21 and the second guide rail 22, and the sliders 5111 are also provided with pulleys which are in rolling contact with the first guide rail 21 and the second guide rail 22. By adopting the above method, the displacement frame 511 can be stably and quickly slidably arranged on the first guide rail 21 and the second guide rail 22.

[0099] Further, continue to refer to Figure 5In order to realize the displacement adjustment action, the displacement motor 512 is fixedly installed on the displacement frame 511, and the displacement gear 513 is fixedly connected to the output shaft of the displacement motor 512. Usually, the displacement gear 513 and the displacement motor 512 can be fixedly connected through a keyway structure, which is not described in detail here; on this basis, the displacement rack 514 is adapted to the length of the track device 2, the displacement rack 514 is fixedly installed on the track device 2, and extends along the first horizontal direction, and the displacement rack 514 is meshed with the displacement rack 514.

[0100] By adopting the above-mentioned setting scheme, when the position of the transfer device 5 needs to be adjusted, the displacement motor 512 is started to rotate the displacement gear 513. Under the mutual meshing action of the displacement gear 513 and the displacement motor 512, the displacement frame 511 can be pushed to move on the track device 2. At this time, the displacement motor 512 can adopt a motor model such as a servo motor that can output positive and reverse torque. By adjusting the torque output direction, the reciprocating displacement adjustment of the transfer device 5 on the track device 2 can be achieved, and the action is correspondingly fast and rapid.

[0101] Further, refer to Figure 6 and Figure 7 The displacement frame 511 is also used to provide an installation position for the lifting mechanism 52, wherein the lifting mechanism 52 is arranged on the displacement frame 511, and the lifting mechanism 52 includes a lifting frame 521, a lifting motor 522, a first lifting sprocket 523, a second lifting sprocket 524 and a lifting chain 525.

[0102] To achieve the lifting and lowering adjustment function, the lifting frame 521 is slidably arranged on the lifting frame 521 of the displacement mechanism 51 along the vertical direction. Specifically, guide columns 526 are respectively arranged on opposite sides of the displacement frame 511, and two rows of guide wheels 528 parallel to each other are respectively arranged on both sides of the lifting frame 521, the guide columns 526 are located between the two rows of guide wheels 528, and the guide wheels 528 and the guide columns 526 are rollingly abutted against each other. Under the action of the guide wheels 528, the lifting frame 521 can be lifted and moved compared with the displacement frame 511.

[0103] It is understandable that in other embodiments, the guide rail and the slider 5111 structure may be used to realize sliding guidance between the displacement rack 511 and the lifting rack 521 , and the specific sliding mode between the displacement rack 511 and the lifting rack 521 is not limited here.

[0104] Furthermore, the lifting motor 522 is fixedly installed on the lifting frame 521, and the lifting motor 522 can adopt a motor type that can output forward and reverse directions, such as a hydraulic motor or a servo motor; the first lifting sprocket 523 is rotatably installed on the lifting frame 521 and is transmission-connected to the lifting motor 522; in this embodiment, in order to realize the transmission connection between the first lifting sprocket 523 and the lifting motor 522, a coaxial shaft 527 is firstly arranged at the lifting frame 521, and a sprocket module or a belt module is installed between the concentric shaft 527 and the output shaft of the lifting motor 522. At this time, the concentric shaft 527 can be driven to rotate under the drive of the sprocket module or the belt module. At this time, the first lifting sprocket 523 is fixed on the concentric shaft 527, so that the first lifting sprocket 523 can be rotated to realize the transmission connection.

[0105] Based on the above arrangement, the second lifting sprocket 524 is rotatably installed on the displacement mechanism 51. In the present embodiment, the second lifting sprocket 524 is located on the guide column 526, and the second lifting sprocket 524 is located above the first lifting sprocket 523; then, the lifting chain 525 adopts a single chain structure. At this time, the lifting chain 525 has two ends. The two ends of the lifting chain 525 are respectively covered and fixed on the first lifting sprocket 523 and the second lifting sprocket 524 to realize the transmission connection between the first lifting sprocket 523 and the second lifting sprocket 524.

[0106] Based on the above scheme, when the height needs to be raised or lowered, the lifting motor 522 can be started. At this time, the output shaft of the lifting motor 522 can output torque, and the torque drives the concentric shaft 527 to rotate via the chain module or the belt module. At this time, it can drive the first lifting sprocket 523 to rotate. When the first lifting sprocket 523 rotates, it can drive the lifting chain 525 to wrap around it, thereby generating a climbing pulling force to make the lifting frame 521 rise. Conversely, it drives the first lifting sprocket 523 to send out the lifting chain 525 to realize the downward movement of the lifting frame 521. The adjustment is quick and reliable, and it can withstand a large load pulling force.

[0107] Optionally, in order to further improve the carrying capacity of the lifting mechanism 52, multiple groups of mutually cooperating lifting motors 522, first lifting sprockets 523, second lifting sprockets 524 and lifting chains 525 can be set. For example, two groups are set in the present embodiment. The two groups of mutually cooperating lifting motors 522, first lifting sprockets 523, second lifting sprockets 524 and lifting chains 525 are respectively arranged on opposite sides of the lifting frame 521, and the two first lifting sprockets 523 are installed at the same two ends of the concentric shaft 527 when they are set. On the one hand, the above structure can balance the force on the lifting frame 521 and improve the load limit of the structure; on the other hand, by setting the two first lifting sprockets 523 on the same concentric shaft 527, the operation of the two groups of mechanisms can be realized through one driving source, the two groups of mechanisms have good synchronization, and the structure is more compact, and the manufacturing cost is also reduced.

[0108] Furthermore, the supporting mechanism 53 is arranged on the lifting frame 521. In order to facilitate the supporting mechanism 53 to have a flexible moving space, the top of the lifting frame 521 has a platform part, and the platform part is respectively opened on both sides of the second horizontal direction, so that the supporting mechanism 53 can be respectively matched with the machining center 1, the loading and unloading device 3 and the temporary storage device 4 at the openings on both sides.

[0109] Reference Figure 8 and Fig. 9 The supporting mechanism 53 includes a supporting guide rail 531, a supporting arm 532, a supporting motor 533, a supporting gear 534 and a supporting rack 535; wherein, the number of the supporting guide rails 531 is two parallel to each other, the two supporting guide rails 531 extend along the second horizontal direction, and are fixedly arranged on the platform portion of the lifting mechanism 52.

[0110] At the same time, the supporting arm 532 is slidably set on the supporting guide rail 531. Based on the openings on both sides of the platform part, the supporting arm 532 can be extended in two opposite directions in the second horizontal direction respectively. The supporting arm 532 has a supporting part 9 for supporting the pallet workpiece 1001. When the supporting arm 532 is extended, the pallet workpiece 1001 is supported by the supporting part 9.

[0111] Furthermore, the supporting motor 533 is arranged on the lifting mechanism 52, and the supporting motor 533 can adopt a motor structure with positive and negative output torque, such as a servo motor, which is not limited here; specifically, the supporting motor 533 is fixedly installed under the platform part; at the same time, in order to make the structure more compact, an avoidance opening for the supporting gear 534 to pass up and down is provided on the platform part, and the supporting gear 534 is fixedly arranged on the output shaft of the supporting motor 533, and the top of the supporting gear 534 extends from the avoidance opening to the top of the platform part; the supporting rack 535 is fixedly installed on the bottom of the supporting arm 532 and extends along the second horizontal direction, and the supporting gear 534 is meshed with the supporting rack 535.

[0112] By adopting the above solution, by starting the supporting motor 533, the supporting motor 533 can drive the supporting gear 534 to rotate, and the supporting gear 534 can push the rack to move, thereby enabling the supporting arm 532 to achieve a two-way extension displacement effect.

[0113] It can be understood that in order to meet the power transmission distance requirements, the supporting gear 534 can be set to two or more, one of the supporting gears 534 is fixedly installed on the output shaft of the supporting motor 533, and the other supporting gear 534 is rotatably installed on the platform part, and multiple supporting gears 534 are meshed in sequence. At this time, by setting multiple supporting gears 534, the power transmission distance can be extended, thereby meeting the actual power transmission requirements.

[0114] Furthermore, since the supporting arm 532 needs to pick up and place the workpieces 1001 from two opposite pallets, currently only relying on the displacement drive of the supporting motor 533, the supporting gear 534 and the supporting rack 535, there may be a problem of insufficient displacement range.

[0115] Based on this, refer to Fig.10 In order to overcome the above technical obstacles, the supporting arm 532 includes an extension seat 6, a supporting base 7, and an adjustment module 8. The extension seat 6 is a long seat structure, which extends along the second horizontal direction and is slidably arranged on the supporting guide rail 531, and the supporting rack 535 is fixedly installed on the extension seat 6. In this embodiment, in order to improve the load-bearing capacity, a slide groove is provided on the supporting guide rail 531, and a load-bearing wheel body is rotatably installed on the extension seat 6, and the load-bearing wheel body is slidably fitted in the slide groove. At this time, the load-bearing capacity of the extension seat 6 can be improved by the load-bearing wheel body.

[0116] In addition, the supporting base 7 is slidably arranged on the extension seat 6 along the second horizontal direction. At this time, the supporting portion 9 is arranged on the supporting base 7. In the present embodiment, the supporting base 7 is a plate-like structure, a load-bearing wheel body can be arranged at the bottom thereof, and the load-bearing wheel body is slidably arranged on the extension seat 6. At this time, the extension seat 6 needs to be provided with a corresponding slide groove, and its specific sliding method is not limited here.

[0117] Based on the above arrangement, the supporting base 7 can reciprocate between the two ends of the extension seat 6; it can be understood that when it is necessary to pick up and place the pallet workpiece 1001 located at the machining center 1 and the loading and unloading device 3, it is only necessary to drive the supporting base 7 to move to the end of the extension seat 6 close to the machining center 1 and the loading and unloading device 3, so that the supporting portion 9 can be closer to the machining center 1 and the loading and unloading device 3; in addition, when it is necessary to pick up and place the pallet workpiece 1001 located at the temporary storage device 4, it is only necessary to drive the supporting base 7 to move to the end of the extension seat 6 close to the temporary storage device 4, so that the supporting portion 9 can be closer to the temporary storage device 4, and the long extension seat 6 can provide a larger displacement space for the supporting base 7, thereby enabling the supporting portion 9 to obtain a larger displacement adjustment space.

[0118] Further, the adjustment module 8 is used to output power to drive the supporting base 7 to move and adjust on the extension seat 6. Optionally, the adjustment module 8 can adopt a linear module structure, or a module structure such as a gear rack that can output reciprocating motion. In this embodiment, in order to improve the compactness of the structure, the adjustment module 8 adopts a linear module structure with a servo motor as a driving source, and its specific structure is not described in detail here; wherein, the adjustment module 8 is arranged on the extension seat 6, and the output end of the adjustment module 8 is connected to the supporting base 7. When the adjustment module 8 is arranged, its movement driving direction is consistent with the second direction. At this time, the adjustment module 8 can drive the supporting base 7 to move back and forth to the two ends of the extension seat 6, thereby achieving the effect of improving the displacement adjustment space of the supporting part 9.

[0119] It should be explained that, in the present embodiment, the supporting portion 9 is mainly used to lock the pallet workpiece 1001, wherein the supporting portion 9 adopts a first locking sleeve module having a hydraulic locking element inside, and a second conical coupler which is plugged into and matched with the first conical coupler is correspondingly provided at the bottom of the pallet workpiece 1001. By plugging the first conical coupler and the second conical coupler into each other and locking and fixing the two together through the hydraulic locking element, the pallet workpiece 1001 can obtain a stable positioning effect when placed, and is not easy to shake and fall during the transfer process.

[0120] Furthermore, in order to achieve coordinated operation among various devices and mechanisms, the track device 2, loading and unloading device 3, temporary storage device 4 and transfer device 5 shown in this embodiment are electrically connected to a PLC control system at the same time. At the same time, proximity sensors are respectively installed on the track device 2, loading and unloading device 3, temporary storage device 4 and transfer device 5 to generate a position signal by detecting the pallet workpiece 1001. The position signal is sent to the receiving end of the PLC controller. The PLC controller generates a control signal based on the position signal and sends the control signal to the corresponding device through the sending end of the PLC controller to control the mutual coordination among various component devices. When programming the PLC controller, a suitable programming program can be established in combination with the actual processing time of the pallet workpiece 1001 and the processing quantity of the pallet workpiece 1001 to achieve the effect of flexible control, so as to improve the production efficiency and the smoothness of coordination among various devices.

[0121] Further, look back Figure 1 In order to optimize the structural safety of this solution, it also includes a protective mechanism, which is arranged around each device to play a role of isolation and protection. Specifically, the protective mechanism includes: a machine tool enclosure 101, a loading and unloading enclosure 102 and a side enclosure 103.

[0122] Among them, the machine tool enclosure 101, the loading and unloading enclosure 102 and the side enclosure 103 are all composed of a plurality of partitions assembled together. Figure 1 The machine tool enclosure 101 is separated by a dotted line and is located in the vicinity of the machining center 1. The area can be understood as including the opening area of ​​the machining center 1, a partial area of ​​the track device 2 adjacent to the machining center 1, a partial area of ​​the temporary storage device 4, and a gap area between two adjacent machining centers 1. The machine tool enclosure 101 is enclosed in the above area.

[0123] Correspondingly, the loading and unloading enclosure 102 is located in the vicinity of the loading and unloading device 3. It can be understood that the area includes the area where the loading and unloading device 3 is located, part of the track device 2 adjacent to the loading and unloading device 3, and part of the temporary storage device 4, and the loading and unloading enclosure 102 is enclosed in the above-mentioned area.

[0124] In addition, the side enclosure 103 is located in the area near the end of the track device 2. It can be understood that when the machine tool enclosure 101 and the loading and unloading enclosure 102 are set, there will be a gap between the machine tool enclosure 101 and the loading and unloading enclosure 102 near the end of the track device 2. At this time, by setting the side enclosure 103 in the area near the end of the track device 2, the gap can be blocked. At this time, the machine tool enclosure 101, the loading and unloading enclosure 102 and the side enclosure 103 are connected in sequence. Usually, the machine tool enclosure 101, the loading and unloading enclosure 102 and the side enclosure 103 can be interconnected by threaded fasteners to form a closed protective space. The pallet workpiece 1001 can be transferred and displaced in the closed protective space, and the safety of the flexible line is optimized and improved.

[0125] So far, the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A flexible production line for machining centers, comprising a plurality of machining centers (1), characterized in that: The plurality of machining centers (1) are arranged in sequence along a first horizontal direction; Also includes: A track device (2), wherein the machining center (1) is located on an adjacent side of the track device (2) and extends along the first horizontal direction; A loading and unloading device (3), arranged adjacent to the track device (2), for loading or unloading a pallet workpiece (1001); A temporary storage device (4), located on a side of the track device (2) away from the machining center (1), and used for placing pallet workpieces (1001) that have been processed and / or pallet workpieces (1001) to be processed; A transfer device (5) is movably arranged in the track device (2) and is respectively coordinated with the machining center (1), the loading and unloading device (3) and the temporary storage device (4) for picking and placing; The transfer device (5) is used to transfer the pallet workpiece (1001) between the temporary storage device (4) and the loading and unloading device (3), to transfer the pallet workpiece (1001) between the temporary storage device (4) and the machining center (1), and / or to transfer the pallet workpiece (1001) between the loading and unloading device (3) and the machining center (1).

2. The flexible production line of the machining center according to claim 1 is characterized in that: The temporary storage device (4) comprises a plurality of first brackets, and the plurality of first brackets are arranged in sequence along the first horizontal direction.

3. The flexible production line of the machining center according to claim 1 is characterized in that: The loading and unloading device (3) comprises: Rotating platform module (31); A second bracket (32) is arranged on the rotating platform module (31) and is used to place the pallet workpiece (1001); the rotating platform module (31) is used to drive the second bracket (32) to rotate horizontally; and a locking mechanism (33) disposed on the rotating platform module (31); the second bracket (32) has a locking hole (34); the locking mechanism (33) is plugged into and matched with the locking hole (34); when the locking mechanism (33) is plugged into the locking hole (34), the second bracket (32) is in a loading and unloading state.

4. The flexible production line of the machining center according to claim 3 is characterized in that: The loading and unloading devices (3) are arranged in at least two groups, one part of the loading and unloading devices (3) is used to perform loading operations, and the other part of the loading and unloading devices (3) is used to perform unloading operations.

5. The flexible production line for a machining center according to any one of claims 1 to 4, characterized in that: The transfer device (5) comprises: A displacement mechanism (51) is slidably disposed on the track device (2); A lifting mechanism (52) is arranged on the displacement mechanism (51), and the displacement mechanism (51) drives the lifting mechanism (52) to move back and forth along the track device (2); and a supporting mechanism (53) movably arranged on the lifting mechanism (52), wherein the supporting mechanism (53) is used for horizontally telescopically moving into the machining center (1), the loading and unloading device (3) or the temporary storage device (4); when the supporting mechanism (53) is extended into the machining center (1), the loading and unloading device (3) or the temporary storage device (4), the lifting mechanism (52) is used for driving the lifting mechanism (52) to move up and down, so that the supporting mechanism (53) can lift or put down the pallet workpiece (1001).

6. The flexible production line of the machining center according to claim 5 is characterized in that: The displacement mechanism (51) comprises: A displacement frame (511) is slidably arranged on the track device (2), and the lifting mechanism (52) is arranged on the displacement frame (511); A displacement motor (512), disposed on the displacement frame (511); A displacement gear (513) is fixedly connected to the output shaft of the displacement motor (512); and a displacement rack (514), which is arranged on the track device (2) and extends along the first horizontal direction, and the displacement rack (514) is meshed with the displacement gear (513).

7. The flexible production line of the machining center according to claim 5 is characterized in that: The lifting mechanism (52) comprises: A lifting frame (521) is slidably arranged on the displacement mechanism (51) along a vertical direction, and the supporting mechanism (53) is arranged on the lifting frame (521); A lifting motor (522) is arranged on the lifting frame (521); A first lifting sprocket (523) is rotatably mounted on the lifting frame (521) and is drivingly connected to the lifting motor (522); A second lifting sprocket (524) is rotatably disposed on the displacement mechanism (51), and the second lifting sprocket (524) is located above the first lifting sprocket (523); and a lifting chain (525), the two ends of which respectively cover and are fixed to the first lifting sprocket (523) and the second lifting sprocket (524).

8. The flexible production line of the machining center according to claim 5 is characterized in that: The supporting mechanism (53) comprises: A supporting guide rail (531) is disposed on the lifting mechanism (52) and extends along a second horizontal direction, wherein the second horizontal direction is perpendicular to the first horizontal direction; A supporting arm (532) having a supporting portion (9) for supporting the pallet workpiece (1001), wherein the supporting arm (532) is slidably disposed on the supporting guide rail (531) and can extend toward two opposite directions in the second horizontal direction respectively; A supporting motor (533) is disposed on the lifting mechanism (52); A supporting gear (534) fixedly mounted on the output shaft of the supporting motor (533); and a supporting rack (535) fixedly disposed on the supporting arm (532) and extending along the second horizontal direction, wherein the supporting gear (534) is meshed with the supporting rack (535).

9. The flexible production line of the machining center according to claim 8, characterized in that: The supporting arm (532) comprises: An extension seat (6) is slidably disposed on the supporting guide rail (531), and the supporting rack (535) is fixedly disposed on the extension seat (6); A supporting base (7) is slidably arranged on the supporting base (7) along a second horizontal direction, and the supporting portion (9) is arranged on the supporting base (7); and an adjustment module (8) which is arranged on the extension seat (6) and connected to the supporting base (7), wherein the adjustment module (8) is used to drive the supporting base (7) to reciprocate to the two ends of the extension seat (6).

10. The flexible production line of the machining center according to claim 1, characterized in that: Also included is a protection mechanism, the protection mechanism comprising: A machine tool enclosure (101) located in the vicinity of the machining center (1); A loading and unloading enclosure (102) is located in the vicinity of the loading and unloading device (3); and a side enclosure (103) located in an area adjacent to the end of the track device (2); the machine tool enclosure (101), the loading and unloading enclosure (102) and the side enclosure (103) are connected in sequence to form a closed protective space, and the pallet workpiece (1001) is transferred and displaced in the closed protective space.

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