Automatic reversing feeding device of numerical control machine tool

Abstract

The utility model discloses an automatic reversing feeding device of a numerical control machine tool, which relates to the field of numerical control machining and comprises a material returning mechanism, a reversing mechanism and a clip mechanism, a chuck and the material returning mechanism are sequentially arranged along the positive direction of a Z axis, and a motion platform drives the reversing mechanism to move between the clip mechanism and the chuck. The chuck and the clip mechanism are sequentially arranged in the positive direction of the X axis, the clip mechanism comprises a stock bin, a rotary feeding block, a first ejector rod, a first rotating device and a first translation device, the rotary feeding block is provided with a material channel perpendicular to the X axis, the material channel and the first ejector rod are sequentially arranged in the positive direction of the Z axis, and the material channel and the stock bin are sequentially arranged in the positive direction of the Y axis; the first translation device drives the first ejector rod to move along the Z axis, and the first rotating device drives the material channel to swing between the first position and the second position around the X axis. Automatic feeding and machining can be achieved, the other side is machined after the direction is turned, automatic material returning is achieved, the labor intensity of workers is lowered, and the quality is stable.

Description

Technical Field

[0001] This utility model relates to the field of CNC machining, and in particular to an automatic reversing feeding device for CNC machine tools. Background Technology

[0002] For products with minimal difference in specific gravity and shape on both sides, both sides require CNC machine tool machining. However, due to this limitation, the vibratory feeder cannot accurately identify the characteristics of both sides, resulting in inconsistent feeding. Because the vibratory feeder cannot accurately transport this product, manual feeding is often used in actual production.

[0003] After a CNC machine tool finishes machining one side of a product, it needs to be manually rotated 180° and placed in a chuck before the machine tool finishes machining the other side. Workers must repeatedly open the machine tool's safety door, resulting in high labor intensity. Furthermore, the machine is often not shut down while manually placing the product, posing a safety hazard. The product positioning accuracy cannot be guaranteed during manual repositioning, leading to inconsistent product quality.

[0004] Therefore, this utility model provides an automatic reversing feeding device for CNC machine tools, which can automatically rotate the product 180° when the protective door of the CNC machine tool is closed, thereby solving the problems mentioned in the background art. Utility Model Content

[0005] To achieve the above objectives, the present invention adopts the following technical solution: an automatic reversing feeding device for a CNC machine tool, disposed inside the machine tool, the machine tool including a chuck and a motion platform, the chuck being an automatic chuck, and the automatic reversing feeding device for the CNC machine tool comprising:

[0006] The unloading mechanism, wherein the chuck and the unloading mechanism are coaxially arranged sequentially along the positive direction of the Z-axis;

[0007] The magazine mechanism, wherein the chuck and the magazine mechanism are arranged sequentially along the positive direction of the X-axis;

[0008] A reversing mechanism is mounted on a motion platform, and the motion platform drives the reversing mechanism to move between the magazine mechanism and the chuck.

[0009] The magazine mechanism includes a hopper, a rotary feeding block, a first push rod, a first rotating device, and a first translating device. The rotary feeding block has a material channel perpendicular to the X-axis. The material channel and the first push rod are arranged sequentially along the positive direction of the Z-axis. The material channel and the hopper are arranged sequentially along the positive direction of the Y-axis. The first translating device drives the first push rod to move along the Z-axis. The first rotating device drives the rotary feeding block and the material channel on it to swing around the X-axis between a first position and a second position.

[0010] When the rotating feed block is in the first position, the center lines of the feed channel and the hopper are arranged coaxially along the positive direction of the Y-axis, and the reversing mechanism, chuck and unloading mechanism are arranged coaxially along the positive direction of the Z-axis.

[0011] When the rotating feed block is in the second position, the center lines of the reversing mechanism, the feed channel and the first push rod are arranged coaxially along the positive direction of the Z-axis.

[0012] The Y-axis is collinear with the vertical line, the Z-axis is horizontally set and coaxial with the center line of the chuck, and the X-axis is set radially along the chuck.

[0013] Preferably, the reversing mechanism includes: a reversing block, a second push rod, a second rotating device, and a second translating device. The reversing block has a through groove for accommodating the workpiece. The second rotating device drives the reversing block to rotate half a revolution. The second translating device drives the second push rod to move along the Z-axis. The center lines of the second push rod and the through groove are coaxially arranged sequentially along the positive direction of the Z-axis.

[0014] Preferably, the reversing mechanism further includes: a bracket, a slider, and a base. The base is located at the center of the bracket. The base has a groove along the Y-axis. The slider is slidably disposed inside the groove. The slider and the base are detachably connected. The second translation device is slidably disposed at one end of the bracket along the Y-axis. The second rotation device is detachably disposed at the lower end of the slider. The second push rod is slidably disposed at the upper end of the slider.

[0015] Preferably, the ejection mechanism includes: a support, a third push rod, and a third translation device. The third push rod is slidably disposed on the support, and the third translation device drives the third push rod to move along the Z-axis. The center lines of the third push rod and the chuck are coaxially disposed along the Z-axis.

[0016] Preferably, the hopper includes a guide rail and a mounting base, the mounting base and the guide rail being detachably arranged sequentially along the positive direction of the Y-axis, the mounting base having a workpiece receiving groove for accommodating workpieces, the workpiece receiving groove penetrating the mounting base along the Y-axis.

[0017] The workpiece has a through hole, and the guide rail is cylindrical, passing through the through hole in the workpiece. Only one guide rail is needed to accommodate and position the workpiece with the through hole. The workpiece slides out of the hopper and into the material channel through the workpiece receiving groove.

[0018] The number of guide rails is greater than or equal to two, and the guide rails are positive cylinders. The workpiece is slidably disposed between two adjacent guide rails. The hopper can accommodate workpieces with or without through holes. The workpiece slides out of the mounting base through the workpiece receiving groove and into the material channel.

[0019] Preferably, the hopper further includes a drive device and a stop rod for sealing the workpiece receiving groove. The mounting base has a stop hole communicating with the workpiece receiving groove. One end of the stop rod is slidably disposed inside the stop hole, and the drive device drives the stop rod to slide along the stop hole. The drive device controls the end of the stop rod to extend into the workpiece receiving groove or return from the workpiece receiving groove to the stop hole. When the end of the stop rod extends into the workpiece receiving groove, the stop rod will abut against the workpiece or the inner wall of the workpiece receiving groove, blocking the workpiece and preventing the workpiece from continuing to slide along the workpiece receiving groove.

[0020] Furthermore, both the first rotating device and the second rotating device are rotary cylinders or servo motors. Preferably, both the first rotating device and the second rotating device are rotary cylinders.

[0021] Furthermore, both the first translation device and the second translation device are linear cylinders or linear modules. Preferably, both the first translation device and the second translation device are linear cylinders.

[0022] Preferably, the automatic reversing feeding device for CNC machine tools further includes a finished product storage box, which is located below the chuck.

[0023] Furthermore, a hopper is placed inside the finished product storage box. After the third push rod of the ejector mechanism ejects the workpiece from inside the chuck, the workpiece will fall freely into the hopper inside the finished product storage box. After the hopper filled with workpieces is removed from inside the finished product storage box, it is loaded into the magazine mechanism.

[0024] Furthermore, the workpiece receiving slot at the lower end of the hopper is sealed and used as a finished product storage box. After the third push rod of the ejection mechanism pushes the workpiece out from inside the chuck, the workpiece will fall freely into the hopper. After removing the sealing material from the workpiece receiving slot, the hopper filled with workpieces is directly loaded into the magazine mechanism.

[0025] Preferably, the magazine mechanism further includes a support frame, one end of which is detachably fitted onto the chuck, and the hopper, the first rotating device, and the first translating device are all located at the other end of the support frame.

[0026] The working principle of this utility model is as follows:

[0027] 1. Place the products to be processed vertically into the hopper. The products are stacked vertically in the hopper, and the hopper feeds the products vertically.

[0028] 2. The first rotating device controls the rotating feeding block to rotate 90 degrees, adjusts the horizontal rotating feeding block to the vertical direction, resets the product stop rod, and allows the product in the hopper to fall freely into the material channel of the rotating feeding block;

[0029] 3. The first rotating device controls the rotating feed block to rotate 90 degrees, adjusting the vertical rotating feed block to a horizontal position. At the same time, it drives the stop rod to insert into the workpiece receiving groove of the mounting base, closing the outlet of the hopper and fixing the product inside the hopper so that the product will not fall down.

[0030] 4. After the rotating feed block is adjusted to a horizontal position, the motion platform drives the reversing mechanism to move to the receiving position. The first translation device drives the first push rod to insert into one end of the material channel. The first push rod pushes the product in the material channel into the through slot of the reversing block of the reversing mechanism. Subsequently, the motion platform drives the reversing mechanism to move to the chuck position. The second translation device drives the second push rod to move. The second push rod pushes the product in the through slot into the lathe chuck. The lathe chuck automatically clamps the product and processes one side of the product.

[0031] 5. After processing one side of the product, the lathe chuck opens, the motion platform drives the reversing mechanism to move to the chuck position, the third translation device of the unloading mechanism drives the third push rod to push the product out from inside the chuck into the through slot of the reversing block, the second rotation device of the reversing mechanism drives the reversing block to rotate 180 degrees, and the product is reversed 180 degrees. The third translation device of the reversing module drives the third push rod to push the product out from the through slot of the reversing block into the chuck, and the lathe continues to process the other side of the product.

[0032] 6. After the product is fully processed, the lathe chuck opens, and the third push rod of the unloading mechanism moves to push the product out into the product storage box;

[0033] 7. Repeat the above steps to achieve fully automated production.

[0034] The beneficial effects of this invention are as follows: Products requiring processing on both sides of the lathe are placed vertically inside the hopper, making full use of the machine tool's internal space. The chuck mechanism rotates the product from a vertical position to a horizontal position and loads it into the reversing mechanism. After processing one side, the unloading mechanism returns the product to the reversing mechanism, which then rotates the product so that the side not requiring processing faces the chuck for clamping. This allows for automatic feeding and processing, reversing the direction to process the other side, and automatic unloading, reducing worker labor intensity and ensuring consistent quality. Attached Figure Description

[0035] The accompanying drawings further illustrate the present invention, but the embodiments in the drawings do not constitute any limitation on the present invention.

[0036] Figure 1 A perspective view of an automatic reversing feeding device provided in an embodiment of the present utility model;

[0037] Figure 2 This is a front view of an automatic reversing feeding device provided in an embodiment of the present invention;

[0038] Figure 3This is a schematic diagram of the magazine mechanism provided in one embodiment of the present invention;

[0039] Figure 4 This is a schematic diagram of the reversing mechanism provided in an embodiment of the present invention;

[0040] Figure 5 This is a schematic diagram of the material ejection mechanism provided in an embodiment of the present invention;

[0041] Reference numerals: 1: Magazine mechanism; 2: Reversing mechanism; 3: Unloading mechanism; 4: Chuck; 5: Motion platform; 6: Support frame; 7: Guide rail; 8: Mounting seat; 9: Rotary feeding block; 10: First push rod; 11: First rotating device; 12: First translation device; 13: Reversing block; 14: Second push rod; 15: Second rotating device; 16: Second translation device; 17: Bracket; 18: Base; 19: Slider; 20: Baffle; 21: Support; 22: Third push rod; 23: Third translation device; 81: Stop hole. Detailed Implementation

[0042] The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of this utility model.

[0043] It should be noted that, in this utility model, unless otherwise stated, when an element is referred to as "fixed to" or "set on" another element, it can be directly on the other element or an intervening element may be present simultaneously. When an element is referred to as "connected to" another element, it can be directly connected to the other element or an intervening element may be present simultaneously.

[0044] like Figures 1-5 As shown in the figure, an embodiment of the present invention provides an automatic reversing feeding device for a CNC machine tool, which is installed inside the machine tool. The machine tool is a horizontal CNC machine tool, and the machine tool includes a chuck 4 and a motion platform 5. The chuck 4 is an automatic chuck 4. The automatic reversing feeding device for the CNC machine tool includes:

[0045] The ejection mechanism 3, the chuck 4 and the ejection mechanism 3 are arranged coaxially along the positive direction of the Z-axis;

[0046] Magazine mechanism 1, wherein the chuck 4 and magazine mechanism 1 are arranged sequentially along the positive direction of the X-axis;

[0047] A reversing mechanism 2 is mounted on a motion platform 5. The motion platform 5 drives the reversing mechanism 2 to move between the magazine mechanism 1 and the chuck 4. The direction of movement of the reversing mechanism 2 is inclined to intersect the X-axis.

[0048] The magazine mechanism 1 includes a hopper, a rotary feeding block 9, a first push rod 10, a first rotating device 11, and a first translation device 12. The rotary feeding block 9 has a material channel perpendicular to the X-axis. The material channel and the first push rod 10 are arranged sequentially along the positive direction of the Z-axis, and the material channel and the hopper are arranged sequentially along the positive direction of the Y-axis. The first translation device 12 drives the first push rod 10 to move along the Z-axis, and the first rotating device 11 drives the rotary feeding block 9 and the material channel on it to swing around the X-axis between a first position and a second position.

[0049] When the rotating feeding block 9 is in the first position, the center lines of the material channel and the hopper are arranged coaxially along the positive direction of the Y axis, and the reversing mechanism 2, the chuck 4 and the unloading mechanism 3 are arranged coaxially along the positive direction of the Z axis.

[0050] When the rotating feed block 9 is in the second position, the center lines of the reversing mechanism 2, the material channel and the first push rod 10 are arranged coaxially along the positive direction of the Z axis.

[0051] The Y-axis is collinear with the vertical line, the Z-axis is horizontally set and coaxial with the center line of the chuck 4, and the X-axis is set radially along the chuck 4.

[0052] The reversing mechanism 2 includes: a reversing block 13, a second push rod 14, a second rotating device 15, and a second translating device 16. The reversing block 13 has a through groove for accommodating the workpiece. The second rotating device 15 drives the reversing block 13 to rotate half a revolution. The second translating device 16 drives the second push rod 14 to move along the Z-axis. The center line of the second push rod 14 and the through groove are coaxially arranged in sequence along the positive direction of the Z-axis.

[0053] The reversing mechanism 2 further includes: a bracket 17, a slider 19, and a base 18. The base 18 is located at the center of the bracket 17. The base 18 has a groove along the Y-axis. The slider 19 is slidably disposed inside the groove. The slider 19 is detachably connected to the base 18. The second translation device 16 is slidably disposed at one end of the bracket 17 along the Y-axis. The second rotation device 15 is detachably disposed at the lower end of the slider 19. The second push rod 14 is slidably disposed at the upper end of the slider 19.

[0054] The reversing mechanism 2 also includes a baffle 20, which is arranged around the reversing block 13 above the second rotating device 15, and the central angle of the baffle 20 is less than or equal to 180 degrees.

[0055] The ejection mechanism 3 includes: a support 21, a third push rod 22 and a third translation device 23. The third push rod 22 is slidably disposed on the support 21. The third translation device 23 drives the third push rod 22 to move along the Z-axis. The center lines of the third push rod 22 and the chuck 4 are coaxially disposed along the Z-axis.

[0056] The hopper includes a guide rail 7 and a mounting base 8. The mounting base 8 and the guide rail 7 are detachably arranged sequentially along the positive direction of the Y-axis. The mounting base 8 has a workpiece receiving groove for accommodating workpieces. The workpiece receiving groove passes through the mounting base 8 along the Y-axis.

[0057] The workpiece has a through hole, and the guide rail 7 is cylindrical, passing through the through hole in the workpiece. Only one guide rail 7 is needed to accommodate and position the workpiece with the through hole. The workpiece slides out of the hopper and into the material channel through the workpiece receiving groove.

[0058] The number of guide rails 7 is greater than or equal to two, and each guide rail 7 is a positive cylinder. The workpiece is slidably disposed between two adjacent guide rails 7. The hopper can accommodate workpieces with or without through holes. The workpiece slides out of the mounting base 8 through the workpiece receiving groove and into the material channel.

[0059] The hopper also includes a drive unit and a stop rod for sealing the workpiece receiving groove. The mounting base 8 has a stop hole 81 communicating with the workpiece receiving groove. One end of the stop rod is slidably disposed inside the stop hole 81. The drive unit drives the stop rod to slide along the stop hole 81. The drive unit controls the end of the stop rod to extend into the workpiece receiving groove or return from the workpiece receiving groove to the stop hole 81. When the end of the stop rod extends into the workpiece receiving groove, the stop rod will abut against the workpiece or the inner wall of the workpiece receiving groove, blocking the workpiece and preventing the workpiece from continuing to slide along the workpiece receiving groove.

[0060] Both the first rotating device 11 and the second rotating device 15 are rotary cylinders or servo motors.

[0061] Both the first translation device 12 and the second translation device 16 are linear cylinders or linear modules.

[0062] The automatic reversing feeding device for CNC machine tools also includes a finished product storage box, which is located below the chuck 4.

[0063] The finished product storage box contains a hopper. After the third push rod 22 of the ejection mechanism 3 ejects the workpiece from inside the chuck 4, the workpiece will fall freely into the hopper inside the finished product storage box. After the hopper full of workpieces is removed from inside the finished product storage box, it is loaded into the magazine mechanism 1.

[0064] After sealing the workpiece receiving slot at the bottom of the hopper, it is used as a finished product storage box. After the third push rod 22 of the unloading mechanism 3 pushes the workpiece out from inside the chuck 4, the workpiece will fall freely into the hopper. After removing the sealing material from the workpiece receiving slot, the hopper filled with workpieces is directly loaded into the magazine mechanism 1.

[0065] The magazine mechanism 1 also includes a support frame 6, one end of which is detachably fitted onto the chuck 4, and the hopper, the first rotating device 11 and the first translation device 12 are all located at the other end of the support frame 6.

[0066] In one embodiment, the direction of movement of the reversing mechanism 2 is collinear with the X-axis.

[0067] In one embodiment, the machine tool is a vertical CNC machine tool. The difference from the above embodiment is that the chuck 4 is connected to the machine tool via a tilting device. The tilting device includes a third rotating device and a rotary seat. The rotary seat is rotatably disposed inside the machine tool, and the third rotating device is connected to one end of the rotary seat. The third rotating device is a servo motor or a rotary cylinder. The chuck 4 is mounted on the surface of the rotary seat.

[0068] The technical features of the embodiments described above can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of this utility model, and these should all be considered to be within the scope of this specification.

Claims

1. An automatic reversing feeding device for a CNC machine tool, installed on the machine tool, the machine tool including a chuck and a motion platform, characterized in that: include: The unloading mechanism, wherein the chuck and the unloading mechanism are coaxially arranged sequentially along the positive direction of the Z-axis; The magazine mechanism, wherein the chuck and the magazine mechanism are arranged sequentially along the positive direction of the X-axis; A reversing mechanism is mounted on a motion platform, and the motion platform drives the reversing mechanism to move between the magazine mechanism and the chuck. The magazine mechanism includes a hopper, a rotary feeding block, a first push rod, a first rotating device, and a first translating device. The rotary feeding block has a material channel perpendicular to the X-axis. The material channel and the first push rod are arranged sequentially along the positive direction of the Z-axis. The material channel and the hopper are arranged sequentially along the positive direction of the Y-axis. The first translating device drives the first push rod to move along the Z-axis. The first rotating device drives the material channel to swing between a first position and a second position around the X-axis. When the rotating feed block is in the first position, the center lines of the feed channel and the hopper are arranged coaxially along the positive direction of the Y-axis, and the reversing mechanism, chuck and unloading mechanism are arranged coaxially along the positive direction of the Z-axis. When the rotating feed block is in the second position, the reversing mechanism, the feed channel and the center line of the first push rod are arranged coaxially along the positive direction of the Z axis.

2. The automatic reversing feeding device for CNC machine tools according to claim 1, characterized in that: The reversing mechanism includes a reversing block, a second push rod, a second rotating device, and a second translating device. The reversing block has a through slot for accommodating the workpiece. The second rotating device drives the reversing block to rotate half a revolution. The second translating device drives the second push rod to move along the Z-axis. The center lines of the second push rod and the through slot are coaxially arranged sequentially along the positive direction of the Z-axis.

3. The automatic reversing feeding device for CNC machine tools according to claim 2, characterized in that: The reversing mechanism further includes: a bracket, a slider, and a base. The base is located at the center of the bracket. The base has a groove along the Y-axis. The slider is slidably disposed inside the groove. The slider and the base are detachably connected. The second translation device is slidably disposed at one end of the bracket along the Y-axis. The second rotation device is detachably disposed at the lower end of the slider. The second push rod is slidably disposed at the upper end of the slider.

4. The automatic reversing feeding device for CNC machine tools according to claim 1, characterized in that: The ejection mechanism includes a support, a third push rod, and a third translation device. The third push rod is slidably mounted on the support, and the third translation device drives the third push rod to move along the Z-axis. The center lines of the third push rod and the chuck are coaxially arranged along the Z-axis.

5. The automatic reversing feeding device for CNC machine tools according to claim 1, characterized in that: The hopper includes a guide rail and a mounting base. The mounting base and the guide rail are detachably arranged sequentially along the positive direction of the Y-axis. The mounting base has a workpiece receiving groove for accommodating workpieces, and the workpiece receiving groove passes through the mounting base along the Y-axis.

6. The automatic reversing feeding device for CNC machine tools according to claim 5, characterized in that: The hopper also includes a drive device and a stop rod for sealing the workpiece receiving slot. The mounting base has a stop hole communicating with the workpiece receiving slot. One end of the stop rod is slidably disposed inside the stop hole. The drive device drives the stop rod to slide along the stop hole.

7. The automatic reversing feeding device for CNC machine tools according to claim 2, characterized in that: Both the first rotating device and the second rotating device are rotary cylinders or servo motors.

8. The automatic reversing feeding device for CNC machine tools according to claim 2, characterized in that: Both the first translation device and the second translation device are linear cylinders or linear modules.

9. The automatic reversing feeding device for CNC machine tools according to claim 4, characterized in that: It also includes a finished product storage box, which is located below the chuck.

10. The automatic reversing feeding device for CNC machine tools according to claim 1, characterized in that: The magazine mechanism also includes a support frame, one end of which is detachably fitted onto the chuck, and the hopper, the first rotating device, and the first translating device are all located at the other end of the support frame.

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