Automatic material taking and placing device for clamping position before fine trimming in CNC (Computer Numerical Control) machine table

Abstract

The utility model discloses an automatic material taking and placing device for a clamping position before fine trimming in a CNC machine table. The automatic material taking and placing device comprises a material grabbing mechanism (2) and a material box device (1). The material grabbing mechanism (2) is fixed to the side wall of the side, facing the material box device (1), of the CNC main shaft (5). The material box device (1) is fixed to the CNC workbench (4) and located beside the CNC clamp (3), and therefore the material box device (1) can move to the position below the material grabbing mechanism (2) along with the CNC workbench (4) when materials are taken and placed. According to the automatic feeding and discharging device, the automatic feeding and discharging function of the clamping position before fine trimming in the CNC machine table can be achieved, a large number of products can be automatically machined at a time, the total CNC machining cycle time is prolonged, each worker can operate a plurality of CNC machine tables, compared with manual feeding and discharging in the prior art, the number of the machine tables capable of being operated by each worker is increased by several times, manpower is greatly reduced, and the production efficiency is improved. In addition, the material taking and placing frequency of workers is reduced, the risk of three injuries on the surface of a product caused by misoperation of the workers is reduced, and the product yield is improved.

Description

Technical Field

[0001] This utility model relates to the field of CNC machining, and in particular to an automatic material handling device for pre-finishing clamping in a CNC machine tool. Background Technology

[0002] In existing technologies, the CNC clamping and machining of metal mobile phone frames before final finishing relies on manual handling of material handling within the machine. Currently, the CNC machines used by the company (including those from Jiatie, Jiatai, and Fanuc) lack auxiliary clamping equipment, requiring manual operation for handling all metal mobile phone frames. Due to space limitations, only 1-2 products can be processed at a time. The cycle time varies depending on the clamping position, resulting in each employee operating only about 2-15 CNC machines, leading to low production efficiency. Furthermore, improper operation by employees can cause surface damage to the products, reducing product yield.

[0003] The information disclosed in this background section is included only to enhance the understanding of the context of this disclosure, and therefore may contain information that does not constitute prior art known to those skilled in the art. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide an automatic material handling device for pre-cleaning of CNC machine tools, which addresses the above-mentioned deficiencies of the prior art.

[0005] The technical solution adopted by this utility model to solve its technical problem is as follows: Construct an automatic material handling device for pre-finishing clamping in a CNC machine tool, which is applied to the material handling of mid-frame products before finishing. It includes a material gripping mechanism and a material box device for stacking products. The material gripping mechanism is fixed on the side wall of the CNC spindle facing the material box device so as to move along the Z direction with the CNC spindle. The material box device is fixed on the CNC worktable and located next to the CNC fixture, so that it can move with the CNC worktable to below the material gripping mechanism during material handling.

[0006] The material gripping mechanism includes a Z-axis adjustment mechanism, a planar position adjustment mechanism, and a vacuum nozzle for gripping and releasing products. The bottom moving end of the Z-axis adjustment mechanism is connected to the planar position adjustment mechanism. The planar position adjustment mechanism is equipped with the vacuum nozzle and can adjust the horizontal installation position of the vacuum nozzle. The vacuum nozzle grips and releases products from the material box device as the Z-axis adjustment mechanism and the CNC spindle move.

[0007] Furthermore, in the automatic material handling device for pre-finishing CNC machine tool described in this utility model, the planar position adjustment mechanism includes:

[0008] A vacuum nozzle connecting plate for mounting at least one of the vacuum nozzles;

[0009] A spherical connector, which extends along the Z direction, has a spherical top connector and a bottom connector connected to the vacuum nozzle connecting plate;

[0010] The first connecting block is connected to the bottom end of the Z-axis adjustment mechanism and includes a first semi-circular cavity;

[0011] The second connecting block includes a second semi-circular cavity, and the first semi-circular cavity and the first semi-circular cavity can be assembled into a complete circular cavity that matches the top connector of the spherical connector;

[0012] After the second connecting block and the first connecting block are assembled in the first semicircular cavity and the second semicircular cavity in the horizontal direction, they are locked together by the locking member, thereby jointly holding the top connecting head of the spherical connecting member to fix the horizontal orientation of the vacuum nozzle connecting plate.

[0013] Furthermore, in the automatic material handling device for pre-clamping in the CNC machine tool described in this utility model, the vacuum nozzle connecting plate includes multiple sliding mounting slots. The vacuum nozzle passes through the sliding mounting slots and is adjusted to a suitable position before being locked by bolts.

[0014] Furthermore, in the automatic material handling device for pre-cleaning of CNC machine tools described in this utility model, the vacuum nozzle is an elastic suction head that can extend and retract along the Z-direction.

[0015] Furthermore, in the CNC machine tool pre-cleaning automatic material handling device described in this utility model, the Z-axis adjustment mechanism includes a rodless cylinder.

[0016] Furthermore, in the CNC machine tool pre-cleaning automatic material handling device described in this utility model, the material box device includes multiple material bins for stacking products. Each material bin is equipped with an X-direction limiting member and a Y-direction limiting member. The X-direction limiting member can move and be finely adjusted along the X-direction to limit the product in the X direction, and the Y-direction limiting member can move and be finely adjusted along the Y-direction to limit the product in the Y direction.

[0017] Furthermore, in the CNC machine tool pre-cleaning automatic material handling device described in this utility model, the material box device includes a base plate, and the material bin is composed of four uprights with corners installed on the base plate. The corners of the four uprights face the four corners of the product. The X-direction limiting member is an upright plate, and the Y-direction limiting member is a bottom plate.

[0018] Of the four uprights: the second and first uprights are positioned opposite each other in the Y direction; the third and fourth uprights are positioned opposite each other in the Y direction; the second and third uprights are positioned opposite each other in the X direction and fixed to the base plate; the fourth upright and the first upright are positioned opposite each other in the X direction and fixed to the Y-direction limiting member, which is located on the base plate. The Y-direction limiting member is also connected to the base plate via a Y-direction fine-tuning screw, allowing the Y-direction position of the third and fourth uprights to be adjusted by rotating the screw to accommodate the product's Y-direction dimensions. An X-direction limiting member is slidably inserted into the material hopper on the sidewalls of the second and first uprights extending along the Y direction, and is also connected to the X-direction limiting member via an X-direction fine-tuning screw, allowing the X-direction position of the limiting member to be adjusted by rotating the screw to accommodate the product's X-direction dimensions.

[0019] Furthermore, in the CNC machine tool pre-cleaning automatic loading and unloading device described in this utility model, one of the corners of the product is a C-angle, and the other three corners are right angles. A detachable anti-fooling strip is installed at the corner of one of the four uprights. The anti-fooling strip matches the C-angle of the product to prevent the product from being placed backwards.

[0020] Furthermore, in the automatic material handling device for pre-finishing in the CNC machine tool described in this utility model, the material box device also includes a dust cover and a dust plate for shielding the debris generated during product processing. One side of the dust cover is rotatably installed on the side of the hopper for placing the product to be processed and can be flipped over to cover the hopper of the product to be processed. The dust plate is fixed on the side of all hoppers near the CNC fixture.

[0021] Furthermore, in the automatic material handling device for pre-finishing CNC machine tool described in this utility model, an air nozzle pointing towards the hopper is also installed on the dustproof plate for blowing air to remove residual debris from the product surface.

[0022] This utility model discloses an automatic material handling device for pre-clamping in a CNC machine tool, which has the following advantages: This utility model achieves automatic material handling within a CNC machine tool. The device includes a gripping mechanism and a material box device. The gripping mechanism is fixed to the side wall of the CNC spindle facing the material box device, allowing it to move along the Z-axis with the CNC spindle. The material box device is fixed to the CNC worktable and located beside the CNC fixture, allowing it to move with the CNC worktable to below the gripping mechanism during material handling. The gripping mechanism includes a Z-axis adjustment mechanism, a planar position adjustment mechanism, and a vacuum nozzle for gripping and placing products. The bottom moving end of the Z-axis adjustment mechanism is connected to the planar position adjustment mechanism. The planar position adjustment mechanism installs the vacuum nozzle and can adjust the horizontal installation position of the vacuum nozzle. The vacuum nozzle can pick up and put down products from the material box device as the Z-axis adjustment mechanism and the CNC spindle move. In this way, the present invention can realize the automatic material picking and unloading function of the clamping position before fine finishing in the CNC machine tool. A large number of products can be processed automatically at one time, the total CNC processing cycle time is increased, and each employee can operate many CNC machines. Compared with the manual loading and unloading in the prior art, the number of machines that each employee can operate increases several times, and the manpower is greatly reduced. In addition, since the frequency of employee operation for picking and unloading is reduced, the risk of surface damage to products caused by improper operation by employees is reduced, and the product yield is improved. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the automatic material handling device for pre-finishing in a CNC machine tool.

[0025] Figure 2 This is a schematic diagram of the material handling mechanism;

[0026] Figure 3 This is an exploded view of the planar position adjustment mechanism;

[0027] Figure 4 This is a schematic diagram of the material box device;

[0028] Figure 5 This is a structural schematic diagram of the material box device from another angle;

[0029] Figure 6 This is a structural diagram of the product;

[0030] The following are the labeling elements in the figure:

[0031] 100. CNC machine tool; 1. Material box device; 11. X-axis limit component; 12. Y-axis limit component; 13. Base plate; 14. Upright pole; 15. Y-axis fine-tuning screw; 16. X-axis fine-tuning screw; 17. Anti-fooling strip; 18. Dust cover; 19. Dust plate; 110. Rotary cylinder; 111. Connecting block; 112. Connecting block; 2. Material gripping mechanism; 211. Fixing plate; 21. Z-axis adjustment mechanism; 22. Planar position adjustment mechanism; 23. Vacuum nozzle; 221. Vacuum nozzle connecting plate; 222. First connecting block; 223. Second connecting block; 224. Spherical connector; 3. CNC fixture; 4. CNC worktable; 5. CNC spindle; 6. Machining tool. Detailed Implementation

[0032] To facilitate understanding of this utility model, a more comprehensive description will be given below with reference to the accompanying drawings. The drawings illustrate typical embodiments of this utility model. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of this utility model more thorough and complete. It should be understood that the embodiments of this utility model and the specific features thereof are detailed descriptions of the technical solutions of this application, and not limitations thereof. Where there is no conflict, the embodiments of this utility model and the technical features thereof can be combined with each other.

[0033] refer to Figure 1 The automatic loading and unloading device for pre-finishing CNC machine tool in this embodiment is installed on the CNC machine tool 100 and can be applied to loading and unloading of mid-frame products before finishing. The CNC machine tool 100 includes a CNC fixture 3, a CNC worktable 4, and a CNC spindle 5. The CNC fixture 3 is used to fix the product to be processed. The CNC fixture 3 is fixed on the CNC worktable 4, which can move in the horizontal plane, thereby moving the product on the CNC worktable 4 to a suitable position. The CNC spindle 5 is equipped with a machining tool 6, which can move in the vertical direction, thereby moving the machining tool 6. In this text, the X, Y, and Z directions are also the X, Y, and Z directions of the CNC machine tool. The Z direction is the movement direction of the CNC spindle 5, and the XY directions are the left-right and front-back directions.

[0034] The automatic material handling device of this embodiment includes a gripping mechanism 2 and a material box device 1 for stacking products to be processed and stacking processed products. The gripping mechanism 2 is fixed to the side wall of the CNC spindle 5 facing the material box device 1, so the gripping mechanism 2 can move along the Z direction with the CNC spindle 5. The material box device 1 is fixed on the CNC worktable 4 and located beside the CNC fixture 3 (to the right of the CNC fixture (3) in the figure). When picking up or placing materials, the CNC worktable 4 can be controlled to move with the CNC worktable 4 to below the gripping mechanism 2.

[0035] refer to Figure 2 The material gripping mechanism 2 includes a Z-axis adjustment mechanism 21, a planar position adjustment mechanism 22, and a vacuum suction nozzle 23 for gripping and releasing products.

[0036] The Z-axis adjustment mechanism 21 can move up and down, i.e., in the Z-axis direction. In this embodiment, the Z-axis adjustment mechanism 21 specifically adopts a rodless cylinder with a stroke of 300mm. The sliding block of the rodless cylinder is connected to one end of the fixed plate 211. The other end of the fixed plate 211 serves as the bottom moving end of the Z-axis adjustment mechanism 21 and is connected to the planar position adjustment mechanism 22.

[0037] Combination Figure 2-3 The planar position adjustment mechanism 22 is used to install the vacuum nozzle 23 and adjust the horizontal installation position of the vacuum nozzle 23.

[0038] The planar position adjustment mechanism 22 includes: a vacuum nozzle connecting plate 221, a first connecting block 222, a second connecting block 223, and a spherical connector 224.

[0039] The vacuum nozzle connecting plate 221 is used to install at least one of the vacuum nozzles 23. The vacuum nozzle connecting plate 221 is a rectangular plate with multiple parallel and spaced sliding mounting slots. The vacuum nozzle 23 passes through the sliding mounting slots and is adjusted to a suitable position before being locked in place by bolts.

[0040] The spherical connector 224 extends along the Z-direction, with a spherical top connector, a vertically extending connecting post in the middle, and a connecting block at the bottom. The connecting block is connected to the vacuum nozzle connecting plate 221 by screws or the like. In this embodiment, the connection position between the spherical connector 224 and the nozzle connecting plate 221 is offset from the center of the nozzle connecting plate 221. When the spherical connector 224 rotates around its center, it will rotate the nozzle connecting plate 221 along with it, thereby adjusting the XY position of the sliding mounting groove, and thus adjusting the XY position of the vacuum nozzle 23.

[0041] The first connecting block 222 is connected to the bottom end of the fixing plate 211. The first connecting block 222 includes a first semi-circular cavity, and the second connecting block 223 includes a second semi-circular cavity. The first semi-circular cavity and the second semi-circular cavity can be assembled to form a complete circular cavity that matches the top connector of the spherical connector 224. The first connecting block 222 has connecting holes on both sides of the first semi-circular cavity, and the second connecting block 223 has connecting holes on both sides of the second semi-circular cavity.

[0042] When assembling the planar position adjustment mechanism 22, first place the top connector of the spherical connector 224 into the first or second semicircular cavity. Rotate the spherical connector 224 to rotate the vacuum nozzle connecting plate 221 to a suitable angle. Then, assemble the first semicircular cavity of the first connecting block 222 and the second semicircular cavity of the second connecting block 223 in a horizontal direction. After assembly, the connecting holes of the two are aligned. Then, lock them with locking components. After locking, the first connecting block 222 and the second connecting block 223 together hold the top connector of the spherical connector 224, thereby fixing the horizontal orientation of the vacuum nozzle connecting plate 221.

[0043] The vacuum nozzle 23 moves in the Z-axis along with the Z-axis adjustment mechanism 21 and the CNC spindle 5, thereby allowing it to grip and place products in the material box device 1. In this embodiment, the bottom of the vacuum nozzle 23 adopts an elastic suction head that can extend and retract in the Z-axis, for example, the elastic suction head is shaped like an accordion tube made of elastic material.

[0044] refer to Figure 4-5 The material box device 1 includes two hoppers for stacking products: one for stacking products to be processed and the other for stacking processed products. The two hoppers are arranged one in front of the other.

[0045] The material box device 1 includes a base plate 13, and the material bin is composed of four corner-shaped uprights 14 mounted on the base plate, with the corners of the four uprights 14 facing the four corners of the product. To accommodate different product sizes, each material bin is equipped with an X-direction limiting member 11 and a Y-direction limiting member 12. The X-direction limiting member 11 can be moved and finely adjusted along the X-direction to limit the product in the X direction, and the Y-direction limiting member 12 can be moved and finely adjusted along the Y-direction to limit the product in the Y direction.

[0046] Specifically, the X-direction limiting member 11 is a vertical plate, and the Y-direction limiting member 12 is a base plate. Of the four vertical poles 14: the second vertical pole 14 and the first vertical pole 14 are directly opposite each other in the Y direction; the third vertical pole 14 and the fourth vertical pole 14 are directly opposite each other in the Y direction; the second vertical pole 14 and the third vertical pole 14 are directly opposite each other in the X direction; and the fourth vertical pole 14 and the first vertical pole 14 are directly opposite each other in the X direction. The second vertical pole 14 and the first vertical pole 14 form one group, and the third vertical pole 14 and the fourth vertical pole 14 form another group, with both groups clamping the product from the width direction; the second vertical pole 14 and the third vertical pole 14 form one group, and the fourth vertical pole 14 and the first vertical pole 14 form another group, with both groups clamping the product from the length direction.

[0047] To accommodate changes in product length, the second and third uprights 14 are fixed to the base plate 13, and the fourth and first uprights 14 are fixed to the Y-axis limiting member 12. The Y-axis limiting member 12 is movable along the Y-axis, thus moving the fourth and first uprights 14 along the Y-axis to adapt to changes in the product's length. Specifically, the Y-axis limiting member 12 is located on the base plate 13. The Y-axis limiting member 12 is also connected to the base plate 13 via a Y-axis fine-tuning screw 15. Specifically, the thread at the end of the Y-axis fine-tuning screw 15 is threaded into the Y-axis limiting member 12, and the thread at the head end of the Y-axis fine-tuning screw 15 is threaded into a connecting block 111, which is fixedly connected to the Y-axis limiting member 12. Thus, the Y-axis position of the third and fourth uprights 14 can be adjusted by rotating the Y-axis fine-tuning screw 15 to adapt to the product's Y-axis dimensions.

[0048] To accommodate variations in product width, an X-direction limiting member 11 is slidably inserted into the material hopper on the Y-direction extending sidewalls of both the second and first uprights 14. This limiting member is connected to the X-direction limiting member 11 via an X-direction fine-tuning screw 16. Specifically, the thread at the end of the X-direction fine-tuning screw 16 is threaded into the X-direction limiting member 11, while the thread at the head end of the X-direction fine-tuning screw 16 is threaded into a connecting block 112. This connecting block 112 is fixedly connected to the Y-direction extending sidewall of the first upright 14. Thus, the X-direction position of the X-direction limiting member 11 can be adjusted by rotating the X-direction fine-tuning screw 16 to accommodate the X-direction dimensions of the product.

[0049] Furthermore, in this embodiment, one of the corners of the product is a C-angle, and the other three corners are right angles, such as... Figure 6 As shown. A detachable anti-misplacement strip 17 is installed at the corner of one of the four uprights 14. The anti-misplacement strip 17 matches the C-angle of the product to prevent the product from being placed upside down.

[0050] Continue to refer to Figure 4-5 The material box device 1 also includes a dust cover 18 and a dust plate 19 for shielding the debris generated during product processing, and a rotary cylinder 110 for driving the dust cover 18 to rotate 0-180°. One side of the dust cover 18 is rotatably mounted on the side of the hopper for placing the product to be processed and can be flipped over to cover the hopper. The dust plate 19 is fixed to the side of all hoppers near the CNC fixture 3, which in this embodiment is the left side of all hoppers.

[0051] Furthermore, the dustproof plate 19 is also equipped with an air nozzle 110 pointing towards the hopper, which is used to blow air to remove residual debris from the product surface.

[0052] This embodiment applies to the automatic material handling process before fine-tuning the mobile phone frame, as follows:

[0053] (1) When the CNC machine is in standby mode, the rightmost fixed material box device 1 on the CNC worktable 4 is manually filled with 20 mobile phone frame products to be processed into the material bin at the back.

[0054] (2) Manually close the CNC machine door and start the processing button. The CNC worktable 4 moves to the left, so that the material bin of the product to be processed in the material box device 1 is below the spindle 5. The CNC machine control causes the rodless cylinder in the gripping mechanism 2 installed on the spindle 5 to extend.

[0055] (3) The main shaft 5 moves downward, so that the vacuum nozzle 23 installed on the rodless cylinder contacts the surface of the product to be processed. The vacuum nozzle 23 sucks up one product, and then the main shaft 5 moves upward to drive the product to move away from the material box device 1.

[0056] (4) The CNC worktable 4 moves to the right, so that the product picked up by the vacuum nozzle 23 is directly above the CNC fixture 3. The spindle 5 moves downward, so that the product is placed horizontally in the fixed position of the fixture 3. The vacuum suction and vacuum breaking of the vacuum nozzle 23 are canceled, and the rodless cylinder is retracted, causing the product to detach from the vacuum nozzle and be fixed and clamped by the CNC fixture 3. At the same time, the dust cover 18 is closed.

[0057] (5) The tool 6 (CNC milling cutter) processes the product according to the machining process and completes the machining. The CNC worktable 4 moves so that the product is directly below the vacuum nozzle 23. The rodless cylinder extends, and the spindle 5 moves down to bring the vacuum nozzle 23 to the product plane and then clamps the product. The spindle 5 moves up to move the product up and away from the plane of the fixture 3. At the same time, the worktable 4 moves to the left so that the product is above the material bin of the material box device 1 where the processed products are placed. The spindle 5 moves down to control the cancellation of the vacuum suction of the vacuum nozzle 23. The product is removed from the vacuum nozzle and falls into the material bin. The dust cover 18 is opened.

[0058] (6) The spindle 5 moves upward and the worktable 4 moves so that the vacuum nozzle 23 is above the material bin to be processed in the material box device 1.

[0059] Repeat steps (3)-(5) to complete one action cycle. Complete this cycle 20 times until all 20 PCS products are processed.

[0060] After all processing is completed, the door is opened manually, and 20 processed products are taken out from the hopper of the material box device 1. The remaining 20 products to be processed are placed in the hopper to be processed, thus completing one cycle.

[0061] As described above, this embodiment features an improved and optimized CNC machine tool. A new material gripping mechanism and material box device are added inside the CNC machine tool, enabling semi-automatic CNC material handling. It can automatically process 15-20 products at a time, increasing the total CNC processing cycle time. Each employee can thus operate 15-200 CNC machines, approximately eight times more than the same clamping position, significantly reducing workshop manpower. Furthermore, reducing the frequency of employee material handling lowers the risk of surface damage to products due to improper operation, thus improving product yield.

[0062] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0063] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0064] The terms "first," "second," and other ordinal numbers used in this specification are used to describe various constituent elements, but these constituent elements are not limited by these terms. The purpose of using these terms is solely to distinguish one constituent element from others. For example, a first constituent element may be named a second constituent element without departing from the scope of the invention, and similarly, a second constituent element may be named a first constituent element. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0065] Numerous specific details are set forth in the specification provided herein. However, it will be understood that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures, and techniques have not been shown in detail so as not to obscure the understanding of this specification.

[0066] Similarly, it should be understood that, in order to simplify this disclosure and aid in understanding one or more of the various aspects of the invention, in the above description of exemplary embodiments of the invention, various features of the invention are sometimes grouped together in a single embodiment, figure, or description thereof. The claims, following the detailed description, are hereby expressly incorporated therein, wherein each claim itself is a separate embodiment of the invention. In the claims, any reference signs placed between parentheses should not be construed as limiting the claims.

[0067] The embodiments of the present invention have been described above with reference to the accompanying drawings. However, the present invention is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of the present invention without departing from the spirit and scope of the claims. All of these forms are within the protection scope of the present invention.

Claims

1. A CNC machine in-precise pre-clamping automatic material taking and placing device, applied to the taking and placing of materials before the precise pre-clamping of middle frame products, characterized in that, The device comprises a material grabbing mechanism (2) and a material box device (1) for stacking products; the material grabbing mechanism (2) is fixed on the side wall of the CNC spindle (5) facing the material box device (1) and moves along the Z direction with the CNC spindle (5); the material box device (1) is fixed on the CNC workbench (4) and is beside the CNC clamp (3), so that it can move to the lower side of the material grabbing mechanism (2) with the CNC workbench (4) when taking and placing materials. The material grabbing mechanism (2) comprises a Z direction adjusting mechanism (21), a plane position adjusting mechanism (22), and a vacuum suction nozzle (23) for grabbing and placing products; the bottom moving end of the Z direction adjusting mechanism (21) is connected to the plane position adjusting mechanism (22); the plane position adjusting mechanism (22) installs the vacuum suction nozzle (23) and can adjust the horizontal installation position of the vacuum suction nozzle (23); the vacuum suction nozzle (23) moves with the Z direction adjusting mechanism (21) and the CNC spindle (5) to realize grabbing and placing products from the material box device (1).

2. The automatic pick-and-place device for pre-clamping of the CNC machine according to claim 1, wherein, The plane position adjusting mechanism (22) comprises: a vacuum suction nozzle connecting plate (221) for installing at least one vacuum suction nozzle (23); a spherical connector (224) extending along the Z direction, the top connector head of which is spherical, and the bottom thereof is connected to the vacuum suction nozzle connecting plate (221); a first connecting block (222) connected to the bottom end of the Z direction adjusting mechanism (21) and comprising a first semicircular cavity; a second connecting block (223) comprising a second semicircular cavity, the first semicircular cavity and the second semicircular cavity can be spliced into a complete circular cavity matching the top connector head of the spherical connector (224); the second connecting block (223) and the first connecting block (222) are locked by a locking member after being spliced in the horizontal direction, thereby collectively clamping the top connector head of the spherical connector (224) to fix the horizontal orientation of the vacuum suction nozzle connecting plate (221).

3. The automatic pick-and-place device of claim 2, wherein the device further comprises a first and a second linear motor. The vacuum suction nozzle connecting plate (221) comprises a plurality of sliding installation grooves, and the vacuum suction nozzle (23) passes through the sliding installation grooves and is locked by bolts after being adjusted to the appropriate position.

4. The automatic pick-and-place device for pre-clamping of CNC machine according to claim 1, wherein, The vacuum suction nozzle (23) adopts an elastic suction head that can stretch along the Z direction.

5. The automatic pick-and-place device for pre-clamping of CNC machine according to claim 1, wherein, The Z direction adjusting mechanism (21) comprises a rodless cylinder.

6. The automatic pick-and-place device for pre-clamping of CNC machine according to claim 1, wherein, The material box device (1) comprises a plurality of material bins arranged side by side for stacking products, and the material bins are provided with X direction limiting members (11) and Y direction limiting members (12); the X direction limiting members (11) can move along the X direction for fine adjustment to limit the products in the X direction; and the Y direction limiting members (12) can move along the Y direction for fine adjustment to limit the products in the Y direction.

7. The automatic pick-and-place device of claim 6, wherein the device further comprises a first and a second linear motor. The material box device (1) comprises a base plate (13), and the material bins are composed of four vertical rods with corners installed on the base plate, the corner surfaces of the four vertical rods facing the four corners of the products; the X direction limiting members (11) are vertical plates; and the Y direction limiting members (12) are bottom plates. The four vertical rods: the second vertical rod and the first vertical rod are arranged in the Y direction, the third vertical rod and the fourth vertical rod are arranged in the Y direction, the second vertical rod and the third vertical rod are arranged in the X direction and are fixed on the base plate (13), the fourth vertical rod and the first vertical rod are arranged in the X direction and are fixed on the Y direction limiting piece (12), and the Y direction limiting piece (12) is located on the base plate (13); the Y direction limiting piece (12) is also connected with the base plate (13) through the Y direction fine adjustment screw (15), so that the Y direction position of the third vertical rod and the fourth vertical rod can be adjusted by rotating the Y direction fine adjustment screw (15) to adapt to the Y direction size of the product; the side wall of the second vertical rod and the first vertical rod extending in the Y direction is slidably inserted with an X direction limiting piece (11) protruding into the bin, and is also connected with the X direction limiting piece (11) through the X direction fine adjustment screw (16), so that the X direction position of the X direction limiting piece (11) can be adjusted by rotating the X direction fine adjustment screw (16) to adapt to the X direction size of the product.

8. The automatic pick-and-place device of claim 7, wherein the device further comprises a first and a second linear motor. One of the corners of the product is a C corner, and the other three corners are right angles, one of the four vertical rods is provided with a detachable foolproof strip (17) at the corner, and the foolproof strip (17) matches the C corner of the product to prevent the product from being placed in reverse.

9. The automatic pick-and-place device of claim 7, wherein the device further comprises a first and a second pair of clamps, each pair of clamps being configured to hold a workpiece in a first position and a second position, respectively. The material box device (1) further comprises a dust cover (18) and a dust plate (19) for shielding the debris generated in the product processing process, one side of the dust cover (18) is rotatably installed on one side of the bin for placing the product to be processed and can be turned over to cover the bin for placing the product to be processed, and the dust plate (19) is fixed on one side of all the bins close to the CNC clamp (3).

10. The automatic pick-and-place device for pre-clamping of CNC machine according to claim 9, wherein, The dust plate (19) is also provided with a gas nozzle (110) pointing to the bin for blowing gas to remove the residual debris on the surface of the product.

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