Automatic feeding device of numerical control machining center

Abstract

The utility model discloses a numerical control machining center automatic feeding device which comprises a supporting base, a U-shaped supporting table is fixedly installed on the front side of the upper end of the supporting base, a first servo motor is fixedly installed at the bottom of the U-shaped supporting table in a supporting mode, and a first synchronous wheel is fixedly installed on a transmission shaft part at the lower end of the first servo motor. The outer end of the first synchronous wheel is in transmission connection with a second synchronous wheel through a synchronous belt, a transmission lead screw is fixedly installed in the middle of the second synchronous wheel, the outer curved surface of the upper end of the transmission lead screw is in threaded connection with a lead screw nut, and a lifting table is fixedly installed at the front end of the lead screw nut. Vertical limiting guide rails are fixedly installed on the two sides of the inner end of the U-shaped supporting table. And a second servo motor is fixedly mounted at the inner top end of the lifting table. According to the utility model, the machined workpiece can be fed, and the clamped and fixed machined workpiece can be swung and self-adjusted at the same time.

Description

Technical Field

[0001] The utility model relates to the technical field of numerical control machining centers, in particular to an automatic feeding device for numerical control machining centers. Background Art

[0002] CNC machining center is a kind of high-precision and high-efficiency mechanical processing equipment, which consists of mechanical equipment and CNC system, and is suitable for processing complex parts. It is developed from CNC milling machine. The biggest difference between it and CNC milling machine is that the machining center has the ability to automatically exchange machining tools. By installing tools of different purposes on the tool magazine, the machining tools on the spindle can be changed through the automatic tool changer in one clamping, realizing multiple machining functions;

[0003] The CNC machining center has strong comprehensive processing capabilities. After the workpiece is clamped once, it can complete more processing content and has higher processing accuracy. In particular, it can complete many processing that ordinary equipment cannot complete. It is more suitable for single-piece processing with complex shapes and high precision requirements or small and medium-sized batch multi-variety production. It concentrates the functions of milling, boring, drilling, tapping and cutting threads on one device, making it have multiple processing procedures and technological means.

[0004] When the CNC machining center is in use, a loading device is used to load the workpiece that needs to be CNC machined, so that the CNC machining center can process the workpiece.

[0005] However, when the prior art is actually used, when using a loading device to load the workpiece to be CNC machined, the traditional loading device can only perform a single loading action, which makes its operating range small and its flexibility poor, thereby failing to meet the loading operations of the CNC machining center under different working conditions. Utility Model Content

[0006] The purpose of the utility model is to provide an automatic loading device for a CNC machining center, so as to solve the problem raised in the above-mentioned background technology that in the process of using a loading device to load a workpiece to be CNC machined, a traditional loading device can only perform a single loading action, resulting in a small operating range and poor flexibility, thereby being unable to meet the loading operation problem of the CNC machining center under different working conditions.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: comprising a support base, a U-shaped support platform is fixedly installed on the front side of the upper end of the support base, a first servo motor is fixedly installed on the bottom support of the U-shaped support platform, a first synchronous wheel is fixedly installed on the transmission shaft part of the lower end of the first servo motor, the outer end of the first synchronous wheel is connected to the second synchronous wheel through a synchronous belt transmission, a transmission screw is fixedly installed in the middle of the second synchronous wheel, a screw nut is threadedly connected to the outer curved surface of the upper end of the transmission screw, a lifting platform is fixedly installed on the front end of the screw nut, and vertical limit guide rails are fixedly installed on both sides of the inner end of the U-shaped support platform;

[0008] A second servo motor is fixedly installed at the top of the lifting platform, a third synchronous wheel is fixedly installed on the transmission shaft part of the upper end of the second servo motor, the outer end of the third synchronous wheel is connected to the fourth synchronous wheel through a synchronous belt transmission, a rotating seat is fixedly installed on the upper end of the fourth synchronous wheel, an extension platform is fixedly installed on the upper end of the rotating seat, horizontal limiting guide rails are fixedly installed on both sides of the outer end of the extension platform, and the outer ends of the horizontal limiting guide rails are limitedly and movably connected with a moving platform, an extension arm is fixedly installed on the upper end of the moving platform, a third servo motor is fixedly installed on the upper side of the rear end of the extension platform, a fifth synchronous wheel is fixedly installed on the transmission shaft part of the side end of the third servo motor, the outer end of the fifth synchronous wheel is connected to the sixth synchronous wheel through a synchronous belt transmission, a transmission shaft column is fixedly installed in the middle part of the sixth synchronous wheel, and a seventh synchronous wheel is fixedly installed on the outer curved surface inside the transmission shaft column, and an eighth synchronous wheel is rotatably connected to the inner side of the front end of the extension platform through a rotating shaft, and the seventh synchronous wheel and the outer ends of the eighth synchronous wheel are meshed and connected with a transmission synchronous belt;

[0009] A fourth servo motor is fixedly installed in the middle of the upper end of the extension arm, a ninth synchronous wheel is fixedly installed on the transmission shaft part of the lower end of the fourth servo motor, the outer end of the ninth synchronous wheel is connected to the tenth synchronous wheel through a synchronous belt transmission, a loading arm is fixedly installed at the bottom of the tenth synchronous wheel, a U-shaped clamping platform is fixedly installed at the bottom of the loading arm, electric telescopic rods are fixedly installed on both sides of the lower end of the U-shaped clamping platform, the inner telescopic part of the electric telescopic rod passes through the lower end of the U-shaped clamping platform, and clamping blocks for clamping the required workpiece are fixedly installed on both sides, and limit sliding rods are fixedly installed on both sides of the outer ends of the clamping blocks.

[0010] Preferably, the transmission screw is rotatably connected to the inner side of the U-shaped support platform through a bearing seat support, and the upper end of the lifting platform passes through the front side of the upper end of the U-shaped support platform.

[0011] Preferably, there are two vertical limit guide rails, which are symmetrically distributed on both sides of the inner end of the U-shaped support platform, and the rear side of the lower end of the lifting platform is limited and movably connected to the front end of the vertical limit guide rail.

[0012] Preferably, the rotating seat is rotatably connected to the top of the lifting platform via a rotating shaft, and there are two horizontal limit guide rails, which are symmetrically distributed on both sides of the outer end of the extension platform.

[0013] Preferably, the transmission shaft column is rotatably connected to the rear end of the extension platform through a rotating shaft, and the middle part of the upper end of the transmission synchronous belt is fixedly installed in the middle part of the lower end of the moving platform.

[0014] Preferably, the tenth synchronous wheel is rotatably connected to the front end of the extension arm via a rotating shaft, and there are two electric telescopic rods, which are symmetrically distributed on both sides of the lower end of the U-shaped clamping platform.

[0015] Preferably, an anti-skid pad is bonded to the inner side of the clamping block, and the limiting sliding rod passes through and is movably connected to both sides of the lower end of the U-shaped clamping platform.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] 1. When the third servo motor of the utility model is turned on, it will drive the transmission shaft column to rotate in turn. When the transmission shaft column rotates, it will drive the seventh synchronous wheel to rotate. When the seventh synchronous wheel rotates, it will engage with the eighth synchronous wheel to drive the transmission belt to rotate. When the transmission belt rotates, it will drive the moving platform to move forward and backward in a straight line. When the moving platform moves forward and backward in a straight line, it will drive the extension arm to move forward and backward in a straight line. When the extension arm moves forward and backward in a straight line, it will synchronously drive the workpiece clamped and fixed by the clamping block to move forward and backward in a straight line, thereby realizing the function of clamping the required workpiece and then moving it up and down and forward and backward in a straight line to load the material;

[0018] 2. The utility model also drives the workpiece clamped and fixed by the clamping block to swing and adjust synchronously when the extension table rotates. The fourth servo motor is turned on by control. When the fourth servo motor is turned on, the ninth synchronous wheel is driven to rotate. When the ninth synchronous wheel rotates, the tenth synchronous wheel is driven to rotate through the synchronous belt transmission. When the tenth synchronous wheel rotates, the loading arm is driven to rotate. When the loading arm rotates, the U-shaped clamping table is driven to rotate. When the U-shaped clamping table rotates, the workpiece clamped and fixed by the clamping block is driven to rotate and adjust. The workpiece can be loaded and swung and adjusted by itself at the same time. This increases the operating range of loading the workpiece, makes the loading more flexible, and meets the loading operation problems of CNC machining centers under different working conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of an automatic feeding device for a CNC machining center of the utility model. Figure 1;

[0020] Figure 2 This is a schematic diagram of the overall structure of an automatic feeding device for a CNC machining center of the utility model. Figure 2 ;

[0021] Figure 3 The utility model is a cross-sectional schematic diagram of the overall structure of an automatic feeding device for a CNC machining center.

[0022] In the figure: 1. support base; 2. U-shaped support table; 3. first servo motor; 4. first synchronous wheel; 5. second synchronous wheel; 6. transmission screw; 7. screw nut; 8. lifting platform; 9. vertical limit guide rail; 10. second servo motor; 11. third synchronous wheel; 12. fourth synchronous wheel; 13. rotating seat; 14. extension table; 15. horizontal limit guide rail; 16. moving table; 17. extension arm; 18. third servo motor; 19. fifth synchronous wheel; 20. sixth synchronous wheel; 21. transmission shaft column; 22. seventh synchronous wheel; 23. eighth synchronous wheel; 24. transmission synchronous belt; 25. fourth servo motor; 26. ninth synchronous wheel; 27. tenth synchronous wheel; 28. loading arm; 29. ​​U-shaped clamping table; 30. clamping block; 31. electric telescopic rod; 32. limit slide bar. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-3The utility model provides a technical solution for an automatic feeding device of a CNC machining center: it comprises a support base 1, a U-shaped support platform 2 is fixedly installed on the front side of the upper end of the support base 1, a first servo motor 3 is fixedly installed on the bottom support of the U-shaped support platform 2, a first synchronous wheel 4 is fixedly installed on the transmission shaft part of the lower end of the first servo motor 3, a second synchronous wheel 5 is connected to the outer end of the first synchronous wheel 4 through a synchronous belt transmission, a transmission screw 6 is fixedly installed in the middle of the second synchronous wheel 5, and the transmission screw 6 is rotatably connected to the U-shaped support platform 2 through a bearing seat support. On the inner side of the U-shaped support platform 2, the outer curved surface of the upper end of the transmission screw 6 is threadedly connected with a screw nut 7, and a lifting platform 8 is fixedly installed at the front end of the screw nut 7. The upper end of the lifting platform 8 passes through the front side of the upper end of the U-shaped support platform 2, and vertical limit guide rails 9 are fixedly installed on both sides of the inner end of the U-shaped support platform 2. There are two vertical limit guide rails 9, which are symmetrically distributed on both sides of the inner end of the U-shaped support platform 2. The rear side of the lower end of the lifting platform 8 is limited and fit-movably connected to the front end of the vertical limit guide rail 9, so that the lifting platform 8 is vertically slid and limited by the vertical limit guide rail 9;

[0025] A second servo motor 10 is fixedly installed at the top of the lifting platform 8, and a third synchronous wheel 11 is fixedly installed on the transmission shaft part of the upper end of the second servo motor 10. The outer end of the third synchronous wheel 11 is connected to the fourth synchronous wheel 12 through a synchronous belt transmission. A rotating seat 13 is fixedly installed on the upper end of the fourth synchronous wheel 12, and the rotating seat 13 is rotatably connected to the top of the lifting platform 8 through a rotating shaft. An extension platform 14 is fixedly installed on the upper end of the rotating seat 13, and horizontal limit guide rails 15 are fixedly installed on both sides of the outer end of the extension platform 14. There are two horizontal limit guide rails 15, which are symmetrically distributed on both sides of the outer end of the extension platform 14. The outer end of the horizontal limit guide rail 15 is limited and fitted and movably connected to a moving platform 16, and an extension arm is fixedly installed on the upper end of the moving platform 16 17. A third servo motor 18 is fixedly installed on the upper side of the rear end of the extension platform 14. A fifth synchronous wheel 19 is fixedly installed on the transmission shaft part of the side end of the third servo motor 18. The outer end of the fifth synchronous wheel 19 is connected to the sixth synchronous wheel 20 through a synchronous belt transmission. A transmission shaft column 21 is fixedly installed in the middle of the sixth synchronous wheel 20, and the transmission shaft column 21 is rotatably connected to the rear end of the extension platform 14 through a rotating shaft. A seventh synchronous wheel 22 is fixedly installed on the outer curved surface of the inner side of the transmission shaft column 21. An eighth synchronous wheel 23 is rotatably connected to the inner side of the front end of the extension platform 14 through a rotating shaft. The outer ends of the seventh synchronous wheel 22 and the eighth synchronous wheel 23 are meshed and connected with a transmission synchronous belt 24. The middle part of the upper end of the transmission synchronous belt 24 is fixedly installed in the middle part of the lower end of the moving platform 16.

[0026] A fourth servo motor 25 is fixedly installed in the middle of the upper end of the extension arm 17, a ninth synchronous wheel 26 is fixedly installed on the transmission shaft part of the lower end of the fourth servo motor 25, the outer end of the ninth synchronous wheel 26 is connected to the tenth synchronous wheel 27 through a synchronous belt transmission, and the tenth synchronous wheel 27 is rotatably connected to the front end of the extension arm 17 through a rotating shaft, a loading arm 28 is fixedly installed at the bottom of the tenth synchronous wheel 27, a U-shaped clamping platform 29 is fixedly installed at the bottom of the loading arm 28, and electric telescopic rods 31 are fixedly installed on both sides of the lower end of the U-shaped clamping platform 29. There are two electric telescopic rods 31, which are symmetrically distributed on both sides of the lower end of the U-shaped clamping platform 29. The inner telescopic part of the electric telescopic rod 31 passes through the lower end of the U-shaped clamping platform 29 and is fixedly installed with clamping blocks 30 for clamping the required workpiece. The inner side of the clamping block 30 is bonded with an anti-slip pad. Limiting slide bars 32 are fixedly installed on both sides of the outer end of the clamping block 30, and the limiting slide bars 32 pass through the lower end of the U-shaped clamping platform 29 and are movably connected, so that the clamping block 30 can be limited by the limiting slide bars 32 for linear movement.

[0027] Working principle: When in use, the utility model controls and starts the first servo motor 3. When the first servo motor 3 is turned on, it will drive the first synchronous wheel 4 to rotate. When the first synchronous wheel 4 rotates, it will drive the second synchronous wheel 5 to rotate through the synchronous belt transmission. When the second synchronous wheel 5 rotates, it will drive the transmission screw 6 to rotate. When the transmission screw 6 rotates, it will drive the screw nut 7 to move up and down due to the force generated by the threaded connection with the outer curved surface of the upper end of the transmission screw 6. When the screw nut 7 moves up and down, it will drive the lifting platform 8 to move up and down linearly. When the lifting platform 8 moves up and down linearly, it will drive the loading arm 28 to move up and down synchronously. When the loading arm 28 moves up and down linearly, the electric telescopic rod 31 is controlled to be turned on. When the electric telescopic rod 31 is turned on, it will drive the clamping block 30 to move linearly inward or outward. When the clamping block 30 moves linearly inward or outward, it will clamp or release the required workpiece, thereby achieving the function of clamping the required workpiece and then moving it up and down linearly.

[0028] The third servo motor 18 is turned on by control. When the third servo motor 18 is turned on, the fifth synchronous wheel 19 is driven to rotate. When the fifth synchronous wheel 19 rotates, the sixth synchronous wheel 20 is driven to rotate through the synchronous belt transmission. When the sixth synchronous wheel 20 rotates, the transmission shaft column 21 is driven to rotate. When the transmission shaft column 21 rotates, the seventh synchronous wheel 22 is driven to rotate. When the seventh synchronous wheel 22 rotates, it will engage with the eighth synchronous wheel 23 to drive the transmission synchronous belt 24 to rotate. When the transmission synchronous belt 24 rotates, it will drive the moving platform 16 to move forward and backward in a straight line. When the moving platform 16 moves forward and backward in a straight line, it will drive the extension arm 17 to move forward and backward in a straight line. When the extension arm 17 moves forward and backward in a straight line, it will synchronously drive the workpiece clamped and fixed by the clamping block 30 to move forward and backward in a straight line, thereby realizing the function of clamping the required workpiece and then moving it up and down and forward and backward in a straight line to feed the material;

[0029] At the same time, the second servo motor 10 is turned on by control. When the second servo motor 10 is turned on, the third synchronous wheel 11 is driven to rotate. When the third synchronous wheel 11 rotates, the fourth synchronous wheel 12 is driven to rotate through the synchronous belt transmission. When the fourth synchronous wheel 12 rotates, the rotating seat 13 is driven to rotate. When the rotating seat 13 rotates, the extension table 14 is driven to rotate. When the extension table 14 rotates, it synchronously drives the workpiece clamped and fixed by the clamping block 30 to swing and adjust. The fourth servo motor 25 is turned on by control. When the fourth servo motor 25 is turned on, the ninth synchronous wheel 26 is driven to rotate. When the ninth synchronous wheel 26 rotates, it will drive the tenth synchronous wheel 27 to rotate through the synchronous belt transmission. When the tenth synchronous wheel 27 rotates, it will drive the loading arm 28 to rotate. When the loading arm 28 rotates, it will drive the U-shaped clamping table 29 to rotate. When the U-shaped clamping table 29 rotates, it will drive the workpiece clamped and fixed by the clamping block 30 to rotate and adjust. While loading the workpiece, the clamped workpiece can be swung and self-adjusted, thereby increasing the operating range of loading the workpiece, making its loading flexibility stronger, and meeting the loading operation problems of the CNC machining center under different working conditions.

[0030] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic feeding device for a CNC machining center, characterized in that: The invention comprises a support base (1), wherein a U-shaped support platform (2) is fixedly installed on the front side of the upper end of the support base (1), a first servo motor (3) is fixedly installed on the bottom support of the U-shaped support platform (2), a first synchronous wheel (4) is fixedly installed on the transmission shaft part of the lower end of the first servo motor (3), the outer end of the first synchronous wheel (4) is connected to the second synchronous wheel (5) through a synchronous belt transmission, a transmission screw (6) is fixedly installed in the middle of the second synchronous wheel (5), the outer curved surface of the upper end of the transmission screw (6) is threadedly connected to a screw nut (7), a lifting platform (8) is fixedly installed on the front end of the screw nut (7), and vertical limit guide rails (9) are fixedly installed on both sides of the inner end of the U-shaped support platform (2); A second servo motor (10) is fixedly installed at the top of the lifting platform (8); a third synchronous wheel (11) is fixedly installed on the transmission shaft portion of the upper end of the second servo motor (10); the outer end of the third synchronous wheel (11) is connected to a fourth synchronous wheel (12) through a synchronous belt transmission; a rotating seat (13) is fixedly installed on the upper end of the fourth synchronous wheel (12); an extension platform (14) is fixedly installed on the upper end of the rotating seat (13); horizontal limit guide rails (15) are fixedly installed on both sides of the outer end of the extension platform (14); the outer end of the horizontal limit guide rail (15) is limitedly and movably connected to a moving platform (16); an extension arm is fixedly installed on the upper end of the moving platform (16) (17), a third servo motor (18) is fixedly installed on the upper side of the rear end of the extension platform (14), a fifth synchronous wheel (19) is fixedly installed on the transmission shaft portion of the side end of the third servo motor (18), the outer end of the fifth synchronous wheel (19) is connected to the sixth synchronous wheel (20) through a synchronous belt transmission, a transmission shaft column (21) is fixedly installed in the middle of the sixth synchronous wheel (20), a seventh synchronous wheel (22) is fixedly installed on the inner outer curved surface of the transmission shaft column (21), an eighth synchronous wheel (23) is rotatably connected to the inner side of the front end of the extension platform (14) through a rotating shaft, and the outer ends of the seventh synchronous wheel (22) and the eighth synchronous wheel (23) are meshedly connected with a transmission synchronous belt (24); A fourth servo motor (25) is fixedly mounted on the middle part of the upper end of the extension arm (17); a ninth synchronous wheel (26) is fixedly mounted on the transmission shaft part of the lower end of the fourth servo motor (25); the outer end of the ninth synchronous wheel (26) is connected to the tenth synchronous wheel (27) through a synchronous belt transmission; a loading arm (28) is fixedly mounted on the bottom of the tenth synchronous wheel (27); a U-shaped clamping platform (29) is fixedly mounted on the bottom of the loading arm (28); electric telescopic rods (31) are fixedly mounted on both sides of the lower end of the U-shaped clamping platform (29); the inner telescopic part of the electric telescopic rod (31) passes through the lower end of the U-shaped clamping platform (29); and clamping blocks (30) for clamping the required workpiece are fixedly mounted on both sides; and limit sliding rods (32) are fixedly mounted on both sides of the outer ends of the clamping blocks (30).

2. The automatic feeding device for a CNC machining center according to claim 1, characterized in that: The transmission screw rod (6) is rotatably connected to the inner side of the U-shaped support platform (2) through the support of the bearing seat, and the upper end of the lifting platform (8) passes through the front side of the upper end of the U-shaped support platform (2).

3. The automatic feeding device for a CNC machining center according to claim 2, characterized in that: There are two vertical limit guide rails (9), which are symmetrically distributed on both sides of the inner end of the U-shaped support platform (2), and the rear side of the lower end of the lifting platform (8) is limited and fitably connected to the front end of the vertical limit guide rail (9).

4. The automatic feeding device for a CNC machining center according to claim 3, characterized in that: The rotating seat (13) is rotatably connected to the top of the lifting platform (8) via a rotating shaft. There are two horizontal limit guide rails (15), which are symmetrically distributed on both sides of the outer end of the extension platform (14).

5. The automatic feeding device for a CNC machining center according to claim 4, characterized in that: The transmission shaft column (21) is rotatably connected to the rear end of the extension platform (14) through a rotating shaft, and the middle part of the upper end of the transmission synchronous belt (24) is fixedly installed in the middle part of the lower end of the moving platform (16).

6. The automatic feeding device for a CNC machining center according to claim 5, characterized in that: The tenth synchronous wheel (27) is rotatably connected to the front end of the extension arm (17) via a rotating shaft. There are two electric telescopic rods (31), which are symmetrically distributed on both sides of the lower end of the U-shaped clamping platform (29).

7. The automatic feeding device for a CNC machining center according to claim 6, characterized in that: An anti-skid pad is bonded to the inner side of the clamping block (30), and the limiting sliding rod (32) penetrates and is movably connected to the two sides of the lower end of the U-shaped clamping platform (29).

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