CNC Precision Machining Equipment for Electronic Product Accessories

Abstract

The present invention discloses a CNC precision machining device for electronic product accessories, including a column, a base, a workbench, a tool and a machine head. The column is located on one side of the base. The workbench is installed on the base. The machine head is movably installed on the column and located above the workbench. The tool is installed on the machine head. The workbench is equipped with a clamping fixture, and a workpiece to be machined is installed on this clamping fixture. The clamping fixture further includes a substrate, a carrier plate and a cover plate. The carrier plate is fixedly installed on the upper surface of the substrate. The upper surface of the carrier plate is in contact connection with the lower surface of the workpiece. The cover plate is arranged above the workpiece, and the lower surface of the cover plate is in pressing connection with the workpiece. A plurality of pressing head mechanisms are installed at the four peripheral edges of the substrate. A partition plate is arranged between the cover plate and the workpiece. The present invention provides accurate positioning for the workpiece, facilitates high-precision clamping of the workpiece, and further ensures the machining accuracy of the workpiece.

Description

Technical Field

[0001] The present invention relates to a CNC precision machining device for electronic product accessories, belonging to the field of machining. Background Art

[0002] A computerized numerical control machine tool (hereinafter referred to as CNC) is an automated machine tool equipped with a program control system. This control system can logically process a program specified by control codes or other symbolic instructions, and perform decoding, so that the machine tool can operate and process parts. Therefore, compared with traditional manufacturing, CNC has higher machining accuracy and automation level, eliminating a large number of manual operation links, improving productivity, and being widely used in the modernization process of the manufacturing industry. A fixture is a very common auxiliary production and processing component in the industrial manufacturing industry. It fixes the workpiece to be processed to facilitate the transportation or related processing technology of the workpiece; especially when performing CNC machining, it is often necessary to clamp and fix the workpiece to be processed through a fixture.

[0003] The rapid development of communication technology has accelerated the speed of product replacement of electronic products and promoted the continuous innovation of the electronic product production chain. For the outer shell of electronic products, especially the metal shell, due to its thin thickness and irregular shape, it is difficult for operators to fix the workpiece during the production process. The workpiece is extremely easy to deform and damage under the external force of the machine tool, and the machining error is large. At least two clampings are required. Multiple clamping and machining will cause clamping deformation, vibration marks and tool joint marks, resulting in a high defective rate of products and low production efficiency, making it difficult to meet the huge market demand for electronic products. Therefore, the CNC fixture technology has become an important factor restricting the machining efficiency of metal parts of electronic products. Summary of the Invention

[0004] The purpose of the present invention is to provide a CNC precision machining device for electronic product accessories. This CNC precision machining device for electronic product accessories provides accurate positioning for the workpiece, facilitates high-precision clamping of the workpiece, and further ensures the machining accuracy of the workpiece.

[0005] To achieve the above object, the technical solution adopted by the present invention is: a CNC precision machining device for electronic product accessories, including a column, a base, a workbench, a tool and a machine head. The column is located on one side of the base. The workbench is installed on the base. The machine head is movably installed on the column and is located above the workbench. The tool is installed on the machine head. A clamping fixture is installed on the workbench, and a workpiece to be processed is installed on this clamping fixture.

[0006] The clamping fixture further includes a base plate, a carrier plate and a cover plate, wherein the carrier plate is fixedly mounted on the upper surface of the base plate, the upper surface of the carrier plate is in contact with and connected to the lower surface of the workpiece, the cover plate is arranged above the workpiece, and the lower surface of the cover plate is pressed and connected to the workpiece, and a plurality of pressing head mechanisms are installed at the edges of the base plate, and the pressing head mechanisms are pressed and connected to the top surface of the cover plate;

[0007] The pressure head mechanism further includes a fixed plate, a fixed seat, a push-pull rod, a tilting plate, a pressure head and two connecting rotating plates symmetrically arranged on both sides of the fixed seat, one end of the fixed plate is mounted on the base plate, and a through hole for the push-pull rod to pass through is opened on the other end of the fixed plate away from the base plate, the upper end of the push-pull rod is rotatably connected to the connecting rotating plate, and the lower end of the push-pull rod passes through the fixed plate and is connected to a driving assembly;

[0008] The base portion at the lower end of the fixed seat is fixedly installed on the upper surface of the fixed plate, and the base portion is connected to a connecting portion inclined toward one side of the push-pull rod, and a first rotating shaft penetrating the connecting portion is installed at the lower end of the connecting portion, and a second rotating shaft penetrating the connecting portion is installed at the upper end of the connecting portion, and the two ends of the first rotating shaft extend from the two sides of the connecting portion respectively, and are respectively connected to the connecting rotating plate, and the second rotating shaft is rotatably connected to the end of the tilting plate;

[0009] The connecting rotating plate comprises a first strip portion and a second strip portion, one end of each of the first strip portion and the second strip portion is connected, so that an acute angle is formed between the first strip portion and the second strip portion, and a corner portion is formed at the connection between the first strip portion and the second strip portion, and the corner portions of the two connecting rotating plates are respectively rotatably connected to the two ends of the first rotating shaft;

[0010] One end of the two first strip portions opposite to the corner portion is rotatably connected to the upper end of the push-pull rod through a third rotating shaft, and a fourth rotating shaft is connected between one end of the two second strip portions opposite to the corner portion, and the fourth rotating shaft is rotatably connected to the rear end of the pressure head, and the rear end of the pressure head has a downwardly extending adapter, and the adapter is rotatably connected to the middle and rear part of the tilting plate through a fifth rotating shaft, and the front end lower surface of the pressure head can be pressed and contacted with the upper surface of the tilting plate;

[0011] The upper end of the push-pull rod is connected to a fixed block, and a strip through hole is opened on the fixed block. The third rotating shaft is embedded in the strip through hole, and the two ends of the third rotating shaft extend out from the strip through hole respectively. The first strip portions of the two connecting rotating plates are rotatably connected to the two ends of the third rotating shaft respectively;

[0012] The workpiece comprises a body, wherein two opposite edges of the body are provided with a first upward bending portion, the middle of another edge of the body is provided with a notch portion, and edges at both ends of the notch portion are provided with second upward bending portions respectively;

[0013] A partition is provided between the cover plate and the workpiece. The lower surface of this partition is in contact connection with the upper surface of the body, and the upper surface of the partition is higher than the top surface of the first bending portion and is in contact connection with the lower surface of the cover plate.

[0014] The further improved solutions in the above technical solutions are as follows:

[0015] 1. In the above solution, the partition is a polyurethane partition, a fiberglass partition or an epoxy resin partition.

[0016] 2. In the above solution, the two side surfaces of the partition are respectively in contact connection with the inner side surfaces of the two first bending portions.

[0017] 3. In the above solution, a number of relief grooves are respectively formed on the two side surfaces of the partition, and the relief grooves are correspondingly arranged with the machining positions of the workpiece.

[0018] 4. In the above solution, two limit blocks corresponding to the second bending portion are fixed on the carrier plate, and one side surface of the limit block is in contact connection with the outer side surface of the second bending portion.

[0019] 5. In the above solution, at least two limit posts are arranged on the upper surface of the substrate and on one side of the carrier plate, and through holes for the limit posts to be embedded are arranged on the cover plate.

[0020] 6. In the above solution, a notch groove corresponding to the notch portion of the workpiece is formed on the partition, so that two convex blocks are formed on both sides of the notch groove, and the convex blocks are respectively in contact connection with the inner side surfaces of the second bending portions.

[0021] 7. In the above solution, the limit posts are located in the notch groove of the partition.

[0022] 8. In the above solution, the second bending portion is inclined, and the surface of the limit block in contact with the second bending portion is an inclined surface matching the second bending portion.

[0023] 9. In the above solution, the workbench is movably installed on the base and can reciprocate in two mutually perpendicular directions.

[0024] Due to the application of the above technical solutions, the present invention has the following advantages compared with the prior art:

[0025] 1. The CNC precision machining equipment for electronic product accessories of the present invention has a cleverly designed pressing head mechanism. Through the linkage of multiple components, the warping plate and the pressing head provide double pressure, which not only enhances the pressing force and stability of the warping plate on the cover plate, avoiding situations such as shaking, vibration of the tool, and generation of tool marks during workpiece machining due to insufficient clamping force, and improving the stability and quality of workpiece machining; but also, when the driving force provided by the driving component is the same, it can increase the pressing force of the warping plate. Further, when the length of the warping plate is relatively long, the pressing head provides a second layer of pressure in the middle of the warping plate, enabling the warping plate to clamp the cover plate at a distance with stable and constant pressure, thereby providing more space for workpiece machining, allowing multiple processes to be performed on the workpiece at one time, and improving the machining effect and efficiency of the workpiece; in addition, through the cooperation setting of the push rod and various structures, the maximum angle at which the warping plate can be opened is greater than 90°, facilitating the clamping of the workpiece without damaging the clamped item, and further improving the stability and quality of workpiece machining.

[0026] 2. In the CNC precision machining equipment for electronic product accessories of the present invention, a partition is provided between the cover plate and the workpiece. The lower surface of this partition is in contact connection with the upper surface of the main body, and the upper surface of the partition is higher than the top surface of the first bending part and is in contact connection with the lower surface of the cover plate. Through the setting of the partition, the relatively hard cover plate is prevented from directly contacting the workpiece, which not only avoids the wear of the cover plate on the workpiece but also enables the force applied by the pressing head mechanism on the cover plate to be evenly applied to the workpiece, ensuring stable clamping force on the workpiece while avoiding excessive local force that may damage the workpiece; in addition, two limit blocks corresponding to the second bending part are fixed on the carrier plate. One side surface of this limit block is in contact connection with the outer surface of the second bending part. At least two limit posts are provided on the upper surface of the base plate and on one side of the carrier plate. Through holes for the limit posts to be inserted are provided on the cover plate. The setting of the limit block provides a preliminary positioning for the workpiece, facilitating the precise positioning of the workpiece, while the setting of the limit posts provides a limit for the cover plate, enabling the cover plate to be installed quickly and accurately; further, a notch groove corresponding to the notch part of the workpiece is opened on the partition, thereby forming two convex blocks on both sides of the notch groove. These convex blocks are respectively in contact connection with the inner surface of the second bending part. The convex blocks and the limit blocks are cooperatively arranged to provide accurate positioning for the workpiece, facilitating the high-precision clamping of the workpiece, and thus ensuring the machining accuracy of the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Appendix Figure 1 is a schematic structural diagram of the CNC precision machining equipment for electronic product accessories of the present invention;

[0028] Appendix Figure 2 is a schematic structural diagram of the workpiece to be machined;

[0029] Appendix Figure 3This is a schematic diagram of the structure of a clamping fixture for CNC precision machining equipment of the present invention;

[0030] Attached Figure 4 It is a front view of the structure of the pressing head mechanism of the CNC precision machining equipment of the present invention;

[0031] Attached Figure 5 The schematic diagram of the pressure head structure of the CNC precision machining equipment of the present invention is as follows Figure 1 ;

[0032] Attached Figure 6 The schematic diagram of the pressure head structure of the CNC precision machining equipment of the present invention is as follows Figure 2 ;

[0033] Attached Figure 7 For attachment Figure 6 A magnified view of the local structure;

[0034] Attached Figure 8 This is a schematic diagram of the structure of the connecting rotating plate of the pressure head mechanism of the CNC precision machining equipment of the present invention;

[0035] Attached Figure 9 It is a schematic diagram of the structure of the fixing seat of the pressure head mechanism of the CNC precision machining equipment of the present invention;

[0036] Attached Figure 10 It is a schematic diagram of the partial structure of the clamping fixture of the CNC precision machining equipment of the present invention.

[0037] In the above figures: 1, substrate; 2, carrier; 3, workpiece; 301, body; 302, first bending portion; 303, notch portion; 304, second bending portion; 4, partition; 5, cover plate; 6, pressure head mechanism; 601, fixing plate; 602, fixing seat; 6021, base portion; 6022, connecting portion; 603, push-pull rod; 604, tilting plate; 605, pressure head; 6051, adapter; 606, through hole; 607, driving component; 608, push-pull rod; 609, tilting plate; 610, pressure head; 611, adapter; 612, through hole; 613, driving component; 614, push-pull rod; 615, push-pull rod; 616, push-pull rod; 617, push-pull rod; 618, push-pull rod; 619, push-pull rod; 620, push-pull rod; 621, push-pull rod; 622, push-pull rod; 623, push-pull rod; 624, push-pull rod; 625, push-pull rod; 626, push-pull rod; 627, push-pull rod; 628, push-pull rod; 629, push-pull rod; 630, push-pull rod; 631, push-pull rod; 632, push-pull rod; 633, push-pull rod; 634, push-pull rod; 635, push-pull rod; 636, push-pull rod; 637, push-pull rod; 638, push-pull rod; 639, push-pull rod; 640, push-pull rod; 641 08, first rotating shaft; 609, second rotating shaft; 610, third rotating shaft; 611, fourth rotating shaft; 612, fifth rotating shaft; 613, fixed block; 6131, strip-shaped through hole; 614, connecting rotating plate; 6141, first strip-shaped portion; 6142, second strip-shaped portion; 6143, corner portion; 16, limit block; 17, limit column; 21, column; 22, base; 23, workbench; 24, tool; 25, machine head; 26, clamping fixture. DETAILED DESCRIPTION

[0038] In the description of this patent, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention; the terms "first", "second", and "third" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance; in addition, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this patent can be understood according to specific circumstances.

[0039] Embodiment 1: A CNC precision processing equipment for electronic product accessories, comprising a column 21, a base 22, a workbench 23, a tool 24 and a head 25, wherein the column 21 is located on one side of the base 22, the workbench 23 is mounted on the base 22, the head 25 is movably mounted on the column 21 and located above the workbench 23, the tool 24 is mounted on the head 25, and the workbench 23 is mounted with a clamping fixture 26, on which a workpiece 3 to be processed is mounted;

[0040] The clamping fixture 26 further includes a base plate 1, a carrier plate 2 and a cover plate 5, wherein the carrier plate 2 is fixedly mounted on the upper surface of the base plate 1, the upper surface of the carrier plate 2 is in contact with and connected to the lower surface of the workpiece 3, the cover plate 5 is disposed above the workpiece 3, and the lower surface of the cover plate 5 is pressed and connected to the workpiece 3, and a plurality of pressing head mechanisms 6 are installed at the edges of the base plate 1, and the pressing head mechanisms 6 are pressed and connected to the top surface of the cover plate 5;

[0041] The pressure head mechanism 6 further includes a fixed plate 601, a fixed seat 602, a push-pull rod 603, a tilting plate 604, a pressure head 605 and two connecting rotating plates 614 symmetrically arranged on both sides of the fixed seat 602. One end of the fixed plate 601 is mounted on the base plate 1. The other end of the fixed plate 601 away from the base plate 1 is provided with a through hole 606 for the push-pull rod 603 to pass through. The upper end of the push-pull rod 603 is rotatably connected to the connecting rotating plate 614. The lower end of the push-pull rod 603 passes through the fixed plate 601 and is connected to a driving component 607.

[0042] The base portion 6021 at the lower end of the fixed seat 602 is fixedly installed on the upper surface of the fixed plate 601, and the base portion 6021 is connected to a connecting portion 6022 inclined to one side of the push-pull rod 603, and a first rotating shaft 608 penetrating the connecting portion 6022 is installed at the lower end of the connecting portion 6022, and a second rotating shaft 609 penetrating the connecting portion 6022 is installed at the upper end of the connecting portion 6022, and two ends of the first rotating shaft 608 extend from both sides of the connecting portion 6022 respectively, and are respectively connected to the connecting rotating plate 614, and the second rotating shaft 609 is rotatably connected to the end of the tilting plate 604;

[0043] The connecting rotating plate 614 includes a first strip portion 6141 and a second strip portion 6142, and one end of each of the first strip portion 6141 and the second strip portion 6142 is connected, so that an acute angle is formed between the first strip portion 6141 and the second strip portion 6142, and a corner portion 6143 is formed at the connection between the first strip portion 6141 and the second strip portion 6142, and the corner portions 6143 of the two connecting rotating plates 614 are respectively rotatably connected to the two ends of the first rotating shaft 608;

[0044] One end of the two first strip portions 6141 opposite to the corner portion 6143 is rotatably connected to the upper end of the push-pull rod 603 via a third rotating shaft 610, and one end of the two second strip portions 6142 opposite to the corner portion 6143 is connected with a fourth rotating shaft 611, and the fourth rotating shaft 611 is rotatably connected to the rear end of the pressing head 605, and the rear end of the pressing head 605 has a downwardly extending adapter portion 6051, and the adapter portion 6051 is rotatably connected to the middle and rear part of the tilting plate 604 via a fifth rotating shaft 612, and the lower surface of the front end of the pressing head 605 can be pressed and contacted with the upper surface of the tilting plate 604;

[0045] The upper end of the push-pull rod 603 is connected to a fixed block 613, and a strip-shaped through hole 6131 is opened on the fixed block 613. The third rotating shaft 610 is embedded in the strip-shaped through hole 6131, and the two ends of the third rotating shaft 610 extend out from the strip-shaped through hole 6131 respectively. The first strip portions 6141 of the two connecting rotating plates 614 are rotatably connected to the two ends of the third rotating shaft 610 respectively;

[0046] The workpiece 3 includes a body 301, and the body 301 has an upward first bending portion 302 at two opposite edges, and a notch portion 303 at the middle of another edge of the body 301, and the edges at both ends of the notch portion 303 have upward second bending portions 304 respectively;

[0047] A partition plate 4 is disposed between the cover plate 5 and the workpiece 3 , and the lower surface of the partition plate 4 is in contact with the upper surface of the body 301 . The upper surface of the partition plate 4 is higher than the top surface of the first bending portion 302 and in contact with the lower surface of the cover plate 5 .

[0048] The workbench 23 is movably mounted on the base 22 and can reciprocate in two directions perpendicular to each other; the partition 4 is a polyurethane partition; the two side surfaces of the partition 4 are respectively in contact with the inner surfaces of the two first bending portions 302; the two side surfaces of the partition 4 are respectively provided with a plurality of avoidance grooves, which are arranged corresponding to the processing positions of the workpiece 3;

[0049] The above-mentioned driving assembly 607 is a cylinder installed on the lower surface of the fixed plate 601; the above-mentioned carrier plate 2 is a flexible plate; limit cards 615 are installed at both ends of the above-mentioned first rotating shaft 608, the third rotating shaft 610 and the fourth rotating shaft 611, and this limit card 615 is embedded in the grooves at both ends of the first rotating shaft 608, the third rotating shaft 610 or the fourth rotating shaft 611, and the inner surface of this limit card 615 is in contact and connected with the outer surface of the connecting rotating plate 614.

[0050] Embodiment 2: A CNC precision processing device for electronic product accessories, comprising a column 21, a base 22, a workbench 23, a tool 24 and a head 25, wherein the column 21 is located on one side of the base 22, the workbench 23 is mounted on the base 22, the head 25 is movably mounted on the column 21 and located above the workbench 23, the tool 24 is mounted on the head 25, and the workbench 23 is mounted with a clamping fixture 26, on which a workpiece 3 to be processed is mounted;

[0051] The clamping fixture 26 further includes a base plate 1, a carrier plate 2 and a cover plate 5, wherein the carrier plate 2 is fixedly mounted on the upper surface of the base plate 1, the upper surface of the carrier plate 2 is in contact with and connected to the lower surface of the workpiece 3, the cover plate 5 is disposed above the workpiece 3, and the lower surface of the cover plate 5 is pressed and connected to the workpiece 3, and a plurality of pressing head mechanisms 6 are installed at the edges of the base plate 1, and the pressing head mechanisms 6 are pressed and connected to the top surface of the cover plate 5;

[0052] The pressure head mechanism 6 further includes a fixed plate 601, a fixed seat 602, a push-pull rod 603, a tilting plate 604, a pressure head 605 and two connecting rotating plates 614 symmetrically arranged on both sides of the fixed seat 602. One end of the fixed plate 601 is mounted on the base plate 1. The other end of the fixed plate 601 away from the base plate 1 is provided with a through hole 606 for the push-pull rod 603 to pass through. The upper end of the push-pull rod 603 is rotatably connected to the connecting rotating plate 614. The lower end of the push-pull rod 603 passes through the fixed plate 601 and is connected to a driving component 607.

[0053] The base portion 6021 at the lower end of the fixed seat 602 is fixedly installed on the upper surface of the fixed plate 601, and the base portion 6021 is connected to a connecting portion 6022 inclined to one side of the push-pull rod 603, and a first rotating shaft 608 penetrating the connecting portion 6022 is installed at the lower end of the connecting portion 6022, and a second rotating shaft 609 penetrating the connecting portion 6022 is installed at the upper end of the connecting portion 6022, and two ends of the first rotating shaft 608 extend from both sides of the connecting portion 6022 respectively, and are respectively connected to the connecting rotating plate 614, and the second rotating shaft 609 is rotatably connected to the end of the tilting plate 604;

[0054] The connecting rotating plate 614 includes a first strip portion 6141 and a second strip portion 6142, and one end of each of the first strip portion 6141 and the second strip portion 6142 is connected, so that an acute angle is formed between the first strip portion 6141 and the second strip portion 6142, and a corner portion 6143 is formed at the connection between the first strip portion 6141 and the second strip portion 6142, and the corner portions 6143 of the two connecting rotating plates 614 are respectively rotatably connected to the two ends of the first rotating shaft 608;

[0055] One end of the two first strip portions 6141 opposite to the corner portion 6143 is rotatably connected to the upper end of the push-pull rod 603 via a third rotating shaft 610, and one end of the two second strip portions 6142 opposite to the corner portion 6143 is connected with a fourth rotating shaft 611, and the fourth rotating shaft 611 is rotatably connected to the rear end of the pressing head 605, and the rear end of the pressing head 605 has a downwardly extending adapter portion 6051, and the adapter portion 6051 is rotatably connected to the middle and rear part of the tilting plate 604 via a fifth rotating shaft 612, and the lower surface of the front end of the pressing head 605 can be pressed and contacted with the upper surface of the tilting plate 604;

[0056] The upper end of the push-pull rod 603 is connected to a fixed block 613, and a strip-shaped through hole 6131 is opened on the fixed block 613. The third rotating shaft 610 is embedded in the strip-shaped through hole 6131, and the two ends of the third rotating shaft 610 extend out from the strip-shaped through hole 6131 respectively. The first strip portions 6141 of the two connecting rotating plates 614 are rotatably connected to the two ends of the third rotating shaft 610 respectively;

[0057] The workpiece 3 includes a body 301, and the body 301 has an upward first bending portion 302 at two opposite edges, and a notch portion 303 at the middle of another edge of the body 301, and the edges at both ends of the notch portion 303 have upward second bending portions 304 respectively;

[0058] A partition plate 4 is disposed between the cover plate 5 and the workpiece 3 , and the lower surface of the partition plate 4 is in contact with the upper surface of the body 301 . The upper surface of the partition plate 4 is higher than the top surface of the first bending portion 302 and in contact with the lower surface of the cover plate 5 .

[0059] The partition 4 is an epoxy resin partition; two limit blocks 16 corresponding to the second bending portion 304 are fixed on the carrier 2, and one side surface of the limit block 16 is in contact with the outer surface of the second bending portion 304; at least two limit posts 17 are arranged on the upper surface of the substrate 1 and located on one side of the carrier 2, and a through hole for the limit posts 17 to be embedded is arranged on the cover 5;

[0060] The partition plate 4 is provided with a notch groove corresponding to the notch portion 303 of the workpiece 3, so that two protrusions are formed on both sides of the notch groove, and the protrusions are respectively in contact with the inner surface of the second bending portion 304; the limiting column 17 is located in the notch groove of the partition plate 4; the second bending portion 304 is inclined, and the surface of the limiting block 16 in contact with the second bending portion 304 is an inclined surface matched with the second bending portion 304;

[0061] A groove is formed at the upper end of the connection portion 6022 of the fixed seat 602 for the rear end of the rocker plate 604 to be embedded in. The rear end of the rocker plate 604 is embedded in the groove on the connection portion 6022 and is rotatably connected to the fixed seat 602 through the second rotating shaft 609. The adapter portion 6051 at the rear end of the pressure head 605 is two symmetrically arranged adapter plates. The rocker plate 604 is embedded between the two adapter plates and is rotatably connected to the two adapter plates through the fifth rotating shaft 612.

[0062] When the CNC precision processing equipment for electronic product accessories is used, the structure of the pressure head mechanism is cleverly designed. Through the linkage of multiple components, the tilting plate and the pressure head provide double pressure, which not only enhances the strength and stability of the tilting plate pressing the cover plate, but also avoids shaking, knife vibration, knife marks and the like due to insufficient clamping force when processing the workpiece, thereby improving the stability and quality of workpiece processing; it can also increase the pressing force of the tilting plate under the condition that the driving force provided by the driving component is the same. Furthermore, when the length of the tilting plate is relatively long, the second pressure is provided by the pressure head in the middle of the tilting plate so that the tilting plate can clamp the cover plate at a distance with a stable and constant pressure, thereby providing more space for the processing of the workpiece, and can process the workpiece in multiple processes at one time, thereby improving the processing effect and efficiency of the workpiece; in addition, through the coordinated setting of the push rod and each structure, the maximum angle that the tilting plate can open is greater than 90°, which is convenient for clamping the workpiece without damaging the clamped objects, thereby further improving the stability and quality of workpiece processing;

[0063] The partition plate is set to avoid direct contact between the cover plate with higher hardness and the workpiece, which not only avoids the wear of the cover plate on the workpiece, but also enables the force applied by the pressure head mechanism on the cover plate to be evenly applied to the workpiece, ensuring the stability of the clamping force on the workpiece while avoiding damage to the workpiece due to excessive local force;

[0064] In addition, the setting of the limit block provides a preliminary positioning for the workpiece, which is convenient for the precise positioning of the workpiece, while the setting of the limit column provides a limit for the cover plate, so that the cover plate can be installed quickly and accurately; further, the coordination of the protrusion and the limit block provides accurate positioning for the workpiece, which is convenient for high-precision clamping of the workpiece, thereby ensuring the processing accuracy of the workpiece.

[0065] When in use, the push-pull rod is pushed upward by the driving assembly, and the force is transmitted so that the tilting plate moves downward to press the cover plate. Then the driving assembly continues to drive the push-pull rod upward, and then the force is further transmitted so that the front end of the pressure head presses the tilting plate downward, providing a second pressure for the tilting plate, further enhancing the size and stability of the pressure of the tilting plate on the cover plate.

[0066] The above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with the technology to understand the content of the present invention and implement it accordingly, and they cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A CNC precision processing equipment for electronic product accessories, Features: The machine tool comprises a column (21), a base (22), a workbench (23), a tool (24) and a machine head (25), wherein the column (21) is located on one side of the base (22), the workbench (23) is mounted on the base (22), the machine head (25) is movably mounted on the column (21) and is located above the workbench (23), the tool (24) is mounted on the machine head (25), and the workbench (23) is mounted with a clamping fixture (26), on which a workpiece (3) to be processed is mounted; The clamping fixture (26) further comprises a base plate (1), a carrier plate (2) and a cover plate (5), wherein the carrier plate (2) is fixedly mounted on the upper surface of the base plate (1), the upper surface of the carrier plate (2) is in contact with and connected to the lower surface of the workpiece (3), the cover plate (5) is arranged above the workpiece (3), and the lower surface of the cover plate (5) is pressed and connected to the workpiece (3), and a plurality of pressing head mechanisms (6) are mounted on the edges of the base plate (1), and the pressing head mechanisms (6) are pressed and connected to the top surface of the cover plate (5); The pressure head mechanism (6) further comprises a fixed plate (601), a fixed seat (602), a push-pull rod (603), a tilting plate (604), a pressure head (605) and two connecting rotating plates (614) symmetrically arranged on both sides of the fixed seat (602), one end of the fixed plate (601) is mounted on the base plate (1), and the other end of the fixed plate (601) away from the base plate (1) is provided with a through hole (606) for the push-pull rod (603) to pass through, the upper end of the push-pull rod (603) is rotatably connected to the connecting rotating plate (614), and the lower end of the push-pull rod (603) passes through the fixed plate (601) and is connected to a driving component (607); The base portion (6021) at the lower end of the fixed seat (602) is fixedly mounted on the upper surface of the fixed plate (601), and the base portion (6021) is connected to a connecting portion (6022) inclined toward one side of the push-pull rod (603), and a first rotating shaft (608) penetrating the connecting portion (6022) is installed at the lower end of the connecting portion (6022), and a second rotating shaft (609) penetrating the connecting portion (6022) is installed at the upper end of the connecting portion (6022), and two ends of the first rotating shaft (608) extend from two sides of the connecting portion (6022) and are respectively connected to the connecting rotating plate (614), and the second rotating shaft (609) is rotatably connected to the end of the tilting and pressing plate (604); The connecting rotating plate (614) comprises a first strip portion (6141) and a second strip portion (6142), wherein one end of each of the first strip portion (6141) and the second strip portion (6142) are connected, thereby forming an acute angle between the first strip portion (6141) and the second strip portion (6142), and a corner portion (6143) is formed at the connection between the first strip portion (6141) and the second strip portion (6142), and the corner portions (6143) of the two connecting rotating plates (614) are respectively connected to the two ends of the first rotating shaft (608) for rotation; One end of the two first strip portions (6141) opposite to the corner portion (6143) is rotatably connected to the upper end of the push-pull rod (603) via a third rotating shaft (610); a fourth rotating shaft (611) is connected between one end of the two second strip portions (6142) opposite to the corner portion (6143); the fourth rotating shaft (611) is rotatably connected to the rear end of the pressing head (605); the rear end of the pressing head (605) has a connecting portion (6051) extending downward; the connecting portion (6051) is rotatably connected to the middle and rear part of the tilting plate (604) via a fifth rotating shaft (612); the lower surface of the front end of the pressing head (605) can be in compression contact with the upper surface of the tilting plate (604); The upper end of the push-pull rod (603) is connected to a fixed block (613), and a strip-shaped through hole (6131) is formed on the fixed block (613). The third rotating shaft (610) is embedded in the strip-shaped through hole (6131), and the two ends of the third rotating shaft (610) extend out from the strip-shaped through hole (6131) respectively. The first strip portions (6141) of the two connecting rotating plates (614) are rotatably connected to the two ends of the third rotating shaft (610) respectively. The workpiece (3) comprises a body (301), wherein two opposite edges of the body (301) are provided with an upward first bending portion (302), the middle portion of another edge of the body (301) is provided with a notch portion (303), and the edges at both ends of the notch portion (303) are provided with upward second bending portions (304) respectively; A partition plate (4) is provided between the cover plate (5) and the workpiece (3); the lower surface of the partition plate (4) is in contact with and connected to the upper surface of the body (301); the upper surface of the partition plate (4) is higher than the top surface of the first bent portion (302) and is in contact with and connected to the lower surface of the cover plate (5).

2. The CNC precision processing equipment for electronic product accessories according to claim 1, Features: The partition (4) is a polyurethane partition, a glass fiber partition or an epoxy resin partition.

3. The CNC precision processing equipment for electronic product accessories according to claim 1, Features: The two side surfaces of the partition plate (4) are respectively in contact with and connected to the inner side surfaces of the two first bent portions (302).

4. The CNC precision processing equipment for electronic product accessories according to claim 1, Features: A plurality of avoidance grooves are respectively provided on the two side surfaces of the partition plate (4), and the avoidance grooves are arranged corresponding to the processing positions of the workpiece (3).

5. The CNC precision machining equipment for electronic product accessories according to claim 1, characterized in that: Two limit blocks (16) corresponding to the second bending part (304) are fixed on the carrier plate (2), and one side surface of the limit block (16) is in contact connection with the outer side surface of the second bending part (304).

6. The CNC precision machining equipment for electronic product accessories according to claim 5, characterized in that: At least two limit posts (17) are arranged on the upper surface of the substrate (1) and on one side of the carrier plate (2), and through holes for the limit posts (17) to be inserted into are arranged on the cover plate (5).

7. The CNC precision machining equipment for electronic product accessories according to claim 6, characterized in that: A notch groove corresponding to the notch part (303) of the workpiece (3) is formed in the partition plate (4), so that two convex blocks are formed on both sides of the notch groove, and the convex blocks are respectively in contact connection with the inner side surface of the second bending part (304).

8. The CNC precision machining equipment for electronic product accessories according to claim 7, characterized in that: The limit post (17) is located in the notch groove of the partition plate (4).

9. The CNC precision machining equipment for electronic product accessories according to claim 5, characterized in that: The second bending part (304) is inclined, and the surface of the limit block (16) in contact with the second bending part (304) is an inclined surface matching the second bending part (304).

10. The CNC precision machining equipment for electronic product accessories according to claim 1, characterized in that: The workbench (23) is movably installed on the base (22) and can reciprocate in two mutually perpendicular directions.

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