Loading and unloading devices and CNC machine tools

Abstract

The present application discloses a loading and unloading device and a numerically controlled machine tool, the loading and unloading device comprises: a supporting mechanism; a grasping mechanism, comprising a bracket and a clamping claw, the bracket is slidably arranged on the supporting mechanism and can move relative to the supporting mechanism in a first direction, the clamping claw is slidably arranged on the bracket and can move relative to the bracket in a second direction; a bearing mechanism comprises a material rack and at least two trays, at least two trays are slidably arranged on the material rack and can slide relative to the material rack in a third direction, wherein the clamping claw is used to grasp objects arranged on at least two trays; wherein the first direction, the second direction and the third direction are perpendicular to each other. Through the above method, the present application can save processing time and improve processing efficiency.

Description

Technical Field

[0001] The present application relates to the technical field of CNC machine tools, and in particular to a loading and unloading device and a CNC machine tool. Background Art

[0002] The horizontal machining center is one of the most commonly used CNC machine tools. The horizontal machining center mainly controls the basic movement of the machine tool through the CNC system and servo drive device. The main feature of its structure is that the spindle is set horizontally.

[0003] At present, in the process of horizontal machining center processing, the loading and unloading process is realized by manual operation. Specifically, the processed workpiece is manually taken out from the machine tool workbench, and then the workpiece to be processed is placed on the machine tool workbench. For personal safety reasons, when manual loading and unloading is performed on the machine tool workbench, all the moving axes of the machine tool must stop operating. After the manual loading and unloading is completed, the moving axes of the machine tool can continue to operate and process the next workpiece. However, stopping and starting the machine tool will increase the waiting time for material change, thereby extending the single-piece processing cycle and reducing the processing efficiency, so this problem needs to be solved at present. Summary of the invention

[0004] The main technical problem solved by the present application is to provide a loading and unloading device and a CNC machine tool, which can save processing time and improve processing efficiency.

[0005] In order to solve the above technical problems, a technical solution adopted in the present application is: to provide a loading and unloading device, including: a supporting mechanism; a grasping mechanism, including a bracket and a clamp, wherein the bracket is slidably arranged on the supporting mechanism and can move relative to the supporting mechanism in a first direction, and the clamp is slidably arranged on the bracket and can move relative to the bracket in a second direction; a bearing mechanism, including a material rack and at least two trays, wherein the at least two trays are slidably arranged on the material rack and can slide relative to the material rack in a third direction, wherein the clamp is used to grasp objects arranged on the at least two trays; wherein the first direction, the second direction and the third direction are perpendicular to each other.

[0006] In order to solve the above technical problems, another technical solution adopted in the present application is: to provide a CNC machine tool, including a CNC machine tool body and the above loading and unloading device.

[0007] The beneficial effect of the present application is that the loading and unloading device in the present application realizes loading and unloading by setting the bracket to move relative to the supporting mechanism along a first direction, the clamping claw to move relative to the bracket along a second direction, and at least two trays to slide relative to the material rack along a third direction. Compared with the existing technology, it can reduce the material change time and improve the processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. Among them:

[0009] Figure 1 It is a structural schematic diagram of an implementation method of a CNC machine tool of the present application;

[0010] Figure 2 yes Figure 1 Structural schematic diagram of the loading and unloading device;

[0011] Figure 3 yes Figure 2 Schematic diagram of some structures in the loading and unloading device;

[0012] Figure 4 yes Figure 2 Schematic diagram of some structures in the loading and unloading device;

[0013] Figure 5 yes Figure 2 Schematic diagram of loading and unloading device in operation;

[0014] Figure 6 yes Figure 2 Schematic diagram of loading and unloading device in operation;

[0015] Figure 7 yes Figure 2 Schematic diagram of loading and unloading device in operation;

[0016] Figure 8 yes Figure 2 Schematic diagram of loading and unloading device in operation;

[0017] Fig. 9 It is a structural schematic diagram of an implementation method of a loading and unloading device of the present application. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0019] Combination Figure 1 and Figure 2 , Figure 1 It is a structural schematic diagram of an implementation method of a CNC machine tool of the present application, Figure 2 yes Figure 1In this embodiment, the CNC machine tool 1000 includes a CNC machine tool body 2000 and a loading and unloading device 3000.

[0020] The CNC machine tool body 2000 includes a workbench (not shown) for placing an object A and a tool (not shown) for processing the object A, wherein the object A may be a workpiece or a fixture, etc. Specifically, after the object A to be processed is fed to the workbench in the CNC machine tool body 2000 by the loading and unloading device 3000, the tool in the CNC machine tool body 2000 processes the object A to be processed, and after the processing is completed, the processed object A is moved out of the workbench by the loading and unloading device 3000, that is, the loading and unloading device 3000 is used to realize loading and unloading, and the CNC machine tool body 2000 is used to process the object A to be processed.

[0021] The loading and unloading device 3000 includes a supporting mechanism 3100 , a grabbing mechanism 3200 and a bearing mechanism 3300 .

[0022] The gripping mechanism 3200 includes a bracket 3210 and a clamp 3220, wherein the bracket 3210 is slidably disposed on the supporting mechanism 3100 and can move relative to the supporting mechanism 3100 along a first direction, and the clamp 3220 is slidably disposed on the bracket 3210 and can move relative to the bracket 3210 along a second direction; the supporting mechanism 3300 includes a material rack 3310 and at least two trays 3320, wherein at least two trays 3320 are slidably disposed on the material rack 3310 and can slide relative to the material rack 3310 along a third direction, wherein the clamp 3220 is used to grip an object A disposed on the at least two trays 3320; wherein the first direction, the second direction and the third direction are perpendicular to each other.

[0023] The number of the trays 3320 may be 2, 3 or more, which is not limited here. For the sake of convenience, the following description assumes that there are two trays 3320. The two trays 3320 are defined as a first tray 3321 and a second tray 3322, respectively.

[0024] Meanwhile, in this embodiment, the CNC machine tool 1000 is a horizontal machining center. In other embodiments, the CNC machine tool 1000 may also be other CNC machine tools, such as a vertical machining center, etc., which is not limited here. Specifically, the loading and unloading device 3000 in this embodiment may be applied to any device that needs to realize the loading and unloading function. For the sake of convenience, the CNC machine tool 1000 is described as a horizontal machining center below.

[0025] When the CNC machine tool 1000 is a horizontal machining center, the first direction mentioned above is the Z direction of the CNC machine tool 1000 , the second direction is the Y direction, and the third direction is the X direction.

[0026] For more details, see Figure 1 and Figure 2 When an object A1 is being processed on the workbench in the CNC machine tool body 2000, the operator can clamp the object A2 to be processed on the first pallet 3321 and leave the second pallet 3322 in an idle state.

[0027] After object A1 is processed, object A1 is lifted from the workbench, and at the same time, the second pallet 3322 moves along the third direction (X direction) to be flush with the workbench. At this time, the clamp 3220 can move along the first direction (Z direction) and the second direction (Y direction) to the top of the workbench to grab object A1 and move it to the second pallet 3322; then the first pallet 3321 also moves along the third direction to be flush with the workbench, and then object A2 is lifted. At this time, similarly, the clamp 3220 also moves along the first direction and the second direction to the top of the first pallet 3321 to grab object A2 and move it to the workbench for processing; thereafter, during the processing of object A2, the processed object A1 is directly removed from the second pallet 3322 by the operator, or is first moved from the second pallet 3322 to the first pallet 3321 and then removed by the operator. Finally, the operator continues to clamp the next object to be processed on the first pallet 3321 and repeats the above process.

[0028] From the above content, it can be seen that during the loading and unloading process, the various components of the loading and unloading device 3000 in this embodiment do not need to stop working, so there is no need to wait during the material changing process, thereby reducing the material changing time and improving the processing efficiency.

[0029] Combination Figure 2 and Figure 3 In this embodiment, the supporting mechanism 3100 includes a first column 3110 , a first beam 3120 , a first guide rail 3130 and a first driving member 3140 .

[0030] The first crossbeam 3120 is vertically connected to the first column 3110; the first guide rail 3130 is arranged on the first crossbeam 3120 and extends along the first direction, wherein the bracket 3210 is slidably connected to the first guide rail 3130 through the slider 3150; the first driving member 3140 is arranged on the first crossbeam 3120 and connected to the bracket 3210, and is used to drive the bracket 3210 to slide relative to the first crossbeam 3120 along the first direction.

[0031] In order to ensure that the bracket 3210 can slide smoothly along the first direction, there are multiple first guide rails 3130, which are respectively arranged on different surfaces of the first beam 3120. For example, there are two first guide rails 3130, and accordingly, there are also multiple sliders 3150.

[0032] The first driving member 3140 is a cylinder, which is used to drive the bracket 3210 to slide along the first direction. In one application scenario, the first driving member 3140 is a rodless cylinder. Specifically, a rodless cylinder refers to a cylinder that uses a piston to directly or indirectly connect an external actuator and make it follow the piston to achieve reciprocating motion. The biggest advantage of a rodless cylinder is that it saves installation space. Of course, in other application scenarios, the first driving member 3140 can also be other ordinary cylinders, which is not limited here.

[0033] In one application scenario, the bracket 3210 is slidably connected to the first guide rail 3130 via the first connecting transition plate 3160 .

[0034] Continue reading Figure 3 In addition to the bracket 3210 and the clamping claw 3220 , the grasping mechanism 3200 also includes a second driving member 3230 .

[0035] The second driving member 3230 is disposed on the bracket 3210 and connected to the clamping jaw 3220 , and is used for driving the clamping jaw 3220 to move relative to the bracket 3210 along a second direction.

[0036] Specifically, the movement of the second driving member 3230 drives the movement of the clamping jaw 3220. In one application scenario, the second driving member 3230 is a cylinder.

[0037] Combination Figure 4 The material rack 3310 specifically includes: a ground beam 3311, a second column 3312, a second cross beam 3313, a second guide rail 3314, a third driving member 3315 and a saddle 3316.

[0038] There are two ground beams 3311, which are arranged opposite to each other; there are two second columns 3312, which are respectively arranged on the two ground beams 3311; the second crossbeam 3313 is respectively connected to the two second columns 3312; the second guide rail 3314 is arranged on the second crossbeam 3313 and extends along the third direction, wherein at least two trays 3320 are slidably connected to the second guide rail 3314; the third driving member 3315 is arranged on the second crossbeam 3313 and connected to the at least two trays 3320, and is used to drive the at least two trays 3320 to slide relative to the second crossbeam 3313 along the third direction; the saddle 3316 is arranged on the second crossbeam 3313 and slidably connected to the second guide rail 3314, wherein at least two trays 3320 are arranged on the saddle 3316 at intervals along the third direction.

[0039] Specifically, the rack 3310 is placed on the ground, and the saddle 3316 is arranged so that at least two trays 3320 always keep synchronous movement under the drive of the third driving member 3315, and the distance between two adjacent trays 3320 always remains unchanged. In other embodiments, at least two trays 3320 can also slide along the third direction respectively under the drive of the third driving member 3315.

[0040] Similar to the first driving member 3140 , the third driving member 3315 is also a cylinder, and in one application scenario, specifically a rodless cylinder.

[0041] When the loading and unloading device 3000 is unloading, the object A may be unable to be grasped by the operator or the next process due to the placement angle. Therefore, in order to avoid this defect, in this embodiment, at least one tray 3320 can rotate relative to the saddle 3316. Specifically, at least one tray 3320 is connected to the saddle 3316 through a rotating mechanism (not shown), and the rotating mechanism is used to rotate the tray 3320 on the surface of the saddle 3316 by a certain angle, for example, 360 degrees. In an application scenario, when the object A is loaded and unloaded through the first tray 3321, the first tray 3321 rotates relative to the saddle 3316, and the second tray 3322 cannot rotate relative to the saddle 3316.

[0042] Continue reading Figure 2 and Figure 4 The loading and unloading device 3000 also includes a fixing mechanism 3400 .

[0043] The fixing mechanism 3400 is used to fix the support mechanism 3100 on the CNC machine tool body 2000. By fixing the support mechanism 3100 on the CNC machine tool body 2000, the object A on the workbench can also be grasped by the clamping claw 3220. Specifically, in this embodiment, the fixing frame mechanism 3400 includes a second connecting transition plate 3410, and the second connecting transition plate 3410 fixes the end of the first beam 3120 that is not connected to the first column 3110 on the CNC machine tool body 2000.

[0044] In other implementations, the support mechanism 3100 may not be fixed on the CNC machine tool body 2000 , and in this case, it only needs to be placed in a suitable position close to the CNC machine tool body 2000 .

[0045] At the same time, the object A on the workbench in the CNC machine tool body 2000 can be grasped not through the grasping mechanism 3200 in the loading and unloading device 3000, but through the grasping mechanism (not shown) of the CNC machine tool body 2000 itself.

[0046] Among them, the CNC machine tool body 2000 and the loading and unloading device 3000 can be independent devices that can be sold separately. For example, the CNC machine tool body 2000 can be sold separately as a CNC machine tool, but the CNC machine tool does not have the automatic loading and unloading function and needs to be used in combination with the matching loading and unloading device.

[0047] At the same time, the present application does not limit the specific structures of the supporting mechanism 3100, the grasping mechanism 3200 and the carrying mechanism 3300, as long as they can achieve the corresponding functions.

[0048] In order to better understand the loading and unloading device 3000 in this embodiment, Figures 5 to 8 The working process of the loading and unloading device 3000 is introduced in detail.

[0049] When an object B1 is being processed on the workbench of the CNC machine tool body 2000, the operator can clamp the object B2 to be processed on the first pallet 3321 and leave the second pallet 3322 in an idle state. Figure 5 .

[0050] After the object B1 is processed, the object B1 is lifted from the workbench, and the first tray 3321 and the second tray 3322 are synchronously slid along the third direction (X direction) to the second tray 3322 to be flush with the workbench under the drive of the third driving member 3315, and then the clamping claw 3220 moves along the first direction (Z direction) and the second direction (Y direction) to the top of the workbench to grab the object B1 and move it to the second tray 3322, as shown in FIG. Figure 6 shown.

[0051] Driven by the third driving member 3315, the first tray 3321 and the second tray 3322 continue to slide synchronously along the third direction (X direction) until the first tray 3321 is flush with the workbench, and then the clamping jaw 3220 moves along the first direction (Z direction) and the second direction (Y direction) to the top of the first tray 3321 to grab the object B2 and move it to the workbench, and then the CNC machine tool body 2000 processes the object B2, as shown in FIG. Figure 7 shown.

[0052] Finally, the first tray 3321 and the second tray 3322 are driven by the third driving member 3315 to return to the initial position along the third direction, and the object B1 is grabbed and moved from the second tray 3322 to the first tray 3321 by the gripping claw 3220. Figure 8 As shown, the operator finally takes away the object B1 and clamps the next object to be processed on the first tray 3321 (not shown). The next object to be processed waits for the object B2 to be processed and is then sent to the workbench for processing according to the above steps.

[0053] It can be seen from the above steps that in the process of loading and unloading by the loading and unloading device 3000, the second tray 3322 mainly plays the role of transferring objects, and the first tray 3321 is used to clamp and unload objects.

[0054] See also Fig. 9 , Fig. 9 The structure of the loading and unloading device 4000 in this embodiment is the same as that of the loading and unloading device in any of the above embodiments, and the details can be referred to the above embodiments, which will not be repeated here.

[0055] In summary, the loading and unloading device in the present application realizes loading and unloading by setting the bracket to move relative to the supporting mechanism along a first direction, the clamping jaw to move relative to the bracket along a second direction, and at least two trays to slide relative to the material rack along a third direction. Compared with the existing technology, it can reduce the material changing time and improve the processing efficiency.

[0056] The above description is only an implementation method of the present application, and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly used in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A loading and unloading device, characterized in that: include: Support mechanism; The gripping mechanism comprises a bracket and a clamping claw, wherein the bracket is slidably disposed on the supporting mechanism and can move relative to the supporting mechanism along a first direction, and the clamping claw is slidably disposed on the bracket and can move relative to the bracket along a second direction; The carrying mechanism comprises a material rack and at least two trays, wherein the at least two trays are slidably arranged on the material rack and can slide relative to the material rack along a third direction, wherein the clamp is used to grasp objects arranged on the at least two trays; Wherein, the first direction, the second direction and the third direction are perpendicular to each other; The material rack comprises: There are two ground beams, which are arranged opposite to each other; There are two second columns, and the two columns are respectively arranged on the two ground beams; A second crossbeam, connecting two of the second upright columns respectively; a second guide rail, disposed on the second crossbeam and extending along the third direction, wherein the at least two trays are slidably connected to the second guide rail; a third driving member, disposed on the second crossbeam and connected to the at least two trays, and configured to drive the at least two trays to slide relative to the second crossbeam along the third direction; The carrying mechanism also includes: a saddle, arranged on the second crossbeam and slidably connected to the second guide rail, wherein the at least two trays are arranged on the saddle at intervals along the third direction, and at least one of the trays can rotate relative to the saddle; The fixing mechanism is used to fix the supporting mechanism on the CNC machine tool.

2. The loading and unloading device according to claim 1, characterized in that: The supporting mechanism comprises: First pillar; A first crossbeam, vertically connected to the first column; a first guide rail, disposed on the first crossbeam and extending along the first direction, wherein the bracket is slidably connected to the first guide rail via a slider; The first driving member is disposed on the first crossbeam and connected to the bracket, and is used for driving the bracket to slide relative to the first crossbeam along the first direction.

3. The loading and unloading device according to claim 1, characterized in that: The grabbing mechanism also includes: The second driving member is disposed on the bracket and connected to the clamping claw, and is used for driving the clamping claw to slide relative to the bracket along the second direction.

4. The loading and unloading device according to claim 2, characterized in that: The first driving member is a cylinder.

5. A CNC machine tool, characterized in that: It comprises a CNC machine tool body and a loading and unloading device as claimed in any one of claims 1 to 4.

6. The numerically controlled machine tool according to claim 5, characterized in that: The CNC machine tool is a horizontal machining center.

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