An automated CNC fixture for manufacturing a mobile phone rotating shaft assembly

Abstract

The application discloses an automatic CNC jig for manufacturing mobile phone rotating shaft accessories, which comprises a machine base, a mounting seat, a bottom plate, a cover plate, a placing disc and a taking head, a plurality of placing grooves are arranged on the bottom plate, and the cover plate is correspondingly provided with a plurality of placing grooves; the placing disc is fixedly installed on the machine base and located at one side of the mounting seat, the placing disc is provided with a placing area for orderly placing a plurality of workpieces, a dirt-proof plate is arranged above the placing area on the placing disc, the dirt-proof plate is slidably installed above the placing disc in a mode that the placing area can be opened or hidden, a mechanical arm for switching and moving the taking head between the placing area and a fixed jig and for pitching the taking head is arranged outside the machine base, the taking head is installed on the control end of the mechanical arm, and the bottom surface of the taking head is provided with a chuck; the cover plate is installed on the bottom plate in a mode that the cover plate can be vertically moved, and the sidewall of the placing groove is provided with an extension structure for horizontally extending the chuck into the placing groove. Compared with the prior art, the positioning precision is high, the workpiece consistency is good, and the production efficiency is high.

Description

Technical Field

[0001] This invention relates to the field of mobile phone accessories, and in particular to an automated CNC fixture for manufacturing mobile phone hinge accessories. Background Technology

[0002] Mobile phone hinge components are commonly used in flip phones, slider phones, and brackets, functioning as "small hinges" for opening, rotating, or hovering. CNC fixtures for mobile phone hinge components are specialized jigs used on CNC machine tools to position and clamp parts such as mobile phone hinges and brackets. Their core function is to ensure the stability of parts during high-speed machining, thereby guaranteeing machining accuracy and reducing scrap. Existing CNC fixtures for mobile phone hinge components include a base and a fixing fixture mounted on the base for fixing the workpiece. The fixing fixture is rotatably mounted on the base, and a rotation drive device is installed on the base to control the rotation of the fixing fixture. The fixing fixture has a mounting base, a cover plate, and a base plate. The mounting base is rotatably mounted on the base, and the base plate is locked to the mounting base. The base plate has placement slots for placing multiple milled workpieces, and each placement slot has a corresponding cover plate. The cover plates have machining holes corresponding to the milling parts of the workpieces to expose the workpieces. In application, the worker places the milling workpieces to be processed one by one into the placement slots. After placement, the worker places the cover plate on the base plate and fixes the cover plate. Then, the CNC machining head processes the milling workpiece. During the processing, the rotary drive device drives the mounting base to rotate, realizing the processing of different parts of the milling workpiece. After processing is completed, the worker manually removes the cover plate and finally manually removes the workpiece for placement.

[0003] The loading and unloading of workpieces and the placement and removal of cover plates in this type of mobile phone hinge bracket fixture require manual operation, which results in insufficient positioning accuracy and poor workpiece consistency. Furthermore, the high proportion of manual operation cannot meet the needs of mass production, and the processing cycle is long and the production efficiency is low.

[0004] In view of this, the inventors of this case conducted in-depth research on the problem, which led to the creation of this case. Summary of the Invention

[0005] The purpose of this invention is to provide an automated CNC fixture for manufacturing mobile phone hinge parts, so as to solve the problems of insufficient positioning accuracy, poor workpiece consistency and low production efficiency caused by existing CNC fixtures during the processing.

[0006] To achieve its objective, the present invention employs the following technical solution:

[0007] An automated CNC fixture for manufacturing mobile phone hinge components includes a base and a fixed fixture. The fixed fixture is mounted on the base and has a mounting base mounted on the base, a base plate mounted on the mounting base, and a cover plate covering the base plate. The base plate has a plurality of placement slots, and a plurality of cover plates are correspondingly provided, with each cover plate corresponding to one of the placement slots. The fixture also includes a placement tray for placing workpieces and a picking head for picking up and placing workpieces. The placement tray is fixedly mounted on the base and located outside one side of the fixed fixture. The placement tray has a... A placement area for several workpieces is arranged in an orderly manner, and a dirt-proof plate is provided on the placement tray above the placement area. The dirt-proof plate is slidably installed on the placement tray so as to open or hide the placement area. A robotic arm is provided outside the machine base to control the picking head to switch between the placement area and the fixed fixture and to tilt. The picking head is installed on the control end of the robotic arm, and the bottom surface of the picking head is provided with a chuck for clamping the workpiece. The cover plate is installed on the base plate so as to be able to move up and down, and the side wall of the placement slot is provided with an insertion structure for the chuck to extend laterally into it.

[0008] The base has a horizontally positioned lower plate, with the horizontal direction of the lower plate being the left-right direction. A left seat and a right seat are respectively located on the left and right sides of the top surface of the lower plate. A rotation drive device is provided on the left seat to drive the mounting base to rotate circumferentially. The output end of the rotation drive device is located to the right and is connected to the mounting base. The base plate is installed on the top surface of the mounting base and is located between the left and right seats. The placement tray is suspended above the right side of the top surface of the lower plate via the right seat. The top surface of the placement tray has a plurality of grooves for embedding workpieces. The grooves are arranged in a matrix and constitute the placement area. The anti-fouling plate is suspended above the top surface of the placement tray and is installed on the right seat. The right seat has a sliding drive device for driving the anti-fouling plate to open or hide the placement area.

[0009] The right seat has a lower horizontal plate, side vertical plates, and side guide blocks. The lower horizontal plate lies horizontally and is suspended above the right side of the top surface of the lower plate in the front-back direction. There are two side vertical plates and two side guide blocks, which extend in the front-back direction. The two side vertical plates are locked to the left and right sides of the lower horizontal plate respectively. The placement tray is placed on the top surface of the lower horizontal plate. The two side guide blocks are locked above the two side vertical plates respectively. The opposite side of the two side guide blocks is recessed with a groove. The upper end of the bottom of the groove of each of the two grooves is recessed with a guide groove that runs through in the front-back direction. A rear sealing block is provided between the rear ends of the two side guide blocks. The bottom of the two guide grooves and the front side of the rear sealing block form a dirt-proof space in which the dirt-proof plate lies horizontally in the front-back direction. The left and right ends of the dirt-proof plate extend into the two guide grooves respectively. The placement tray falls into the area below the dirt-proof space. The sliding drive device is installed on the side vertical plate.

[0010] The anti-fouling plate is a louvered folding plate. The two side vertical plates are divided into a left vertical plate and a right vertical plate. The left side of the left vertical plate is provided with a slide rail extending in the front-back direction. A left slider is slidably fitted on the slide rail. The right side of the right vertical plate is provided with a guide rod. A right slider is slidably fitted on the guide rod. Both the left and right sliders are connected to a locking plate that is locked together with the front side of the anti-fouling plate. The side vertical plate is provided with a sliding cylinder that is connected to the left or right slider and can drive the left or right slider to move back and forth. The sliding cylinder is the aforementioned sliding drive device.

[0011] The picking head has a lower block and a side block. The lower block is horizontally arranged, and the side block is vertically arranged on one side of the top surface of the lower block. The side block is connected to the control end of the robot arm through an elastic frame. The top surface of the lower block is provided with several finger cylinders that are horizontally spaced along the horizontal direction of the lower block. There are several grippers corresponding to each finger cylinder. The output end of the finger cylinder is set downward and is connected to the gripper. A first air jet is provided on the lower block between two grippers. The gripper has two jaws that are horizontally opposite each other below the lower block. The horizontal direction of the two grippers is perpendicular to the horizontal direction of the lower block. A second air jet is provided on the lower block between two jaws.

[0012] The base plate is a strip-shaped plate lying horizontally in the left-right direction. The front and rear sides of the strip-shaped plate are recessed with strip-shaped grooves that extend in the left-right direction and lead to the top surface of the strip-shaped plate. A placement strip is detachably installed in the strip-shaped groove. The top surface of the placement strip is recessed with several horizontally spaced placement slots for workpieces to be embedded in. The first end of the cover plate overlaps the top surface of the placement strip, and the first end of the cover plate has a processing opening for exposing the processing part of the workpiece. The second end of the cover plate overlaps the top surface of the base plate. The base plate is provided with a lifting drive device that controls the cover plate to press down on the workpiece in the placement slot or move upward away from the workpiece in the placement slot, and the lifting drive device is connected to the second end of the cover plate.

[0013] Each of the two cover plates above the placement strips is arranged in a one-to-one correspondence, and two cover plates arranged in opposite directions form a set of cover plates. Each set of cover plates is equipped with a lifting drive device. The lifting drive device has a lifting cylinder, a driving block, and a driving rod. The lifting cylinder is vertically placed on the bottom surface of the base plate, with the output end of the lifting cylinder facing upward and connected to the driving block. The base plate has a lifting groove that runs vertically through the base plate and allows the driving block to move up and down. There are two driving rods, both of which extend in the front-to-back direction. The front end of one driving rod and the rear end of the other driving rod are arranged in opposite directions and connected to the upper end of the driving block. The opposite ends of the two driving rods are respectively connected to a set of cover plates, and the middle of both driving rods are hinged to the base plate.

[0014] The top surface of the drive block is recessed with a first fixing groove that extends through the front and rear. The opposite ends of the two drive rods extend into the first fixing groove. The drive block also has a first fixing rod horizontally positioned in the left-right direction. The first fixing rod passes through the opposite ends of the two drive rods and is fixed to the drive block. The front and rear ends of the top surface of the base plate are both recessed with hinge grooves extending from the lifting groove to below the cover plate. Both hinge grooves extend in the front-back direction, and their bottoms are connected to and flush with the bottoms of the first fixing grooves. The opposite ends of the two drive rods are embedded in the hinge grooves and hinged to the base plate via hinge rods. The hinge rods are horizontally positioned in the left-right direction and are located in the middle of the drive rods. The top of the base plate... The cover plate has a through-hole opening located below it. The opening is connected to the hinge groove. The opposite ends of the two driving rods extend into the two openings. The bottom surface of the cover plate has a fixed block that extends into the opening. The bottom surface of the fixed block has a second fixed groove that extends through it. The opposite end of the driving rod extends into the second fixed groove and is fixed to the corresponding cover plate by the second fixed rod. The inner wall of the opening facing the driving block has a guide block that extends vertically and abuts against the opposite end of the driving rod. The guide block has a guide groove that extends vertically and allows the end of the driving rod to move vertically.

[0015] The top surface of the placement strip is recessed with a movable groove that communicates with the placement groove. The movable groove is located on the side of the placement groove facing the driving block. The bottom of the movable groove is flush with the bottom of the placement groove. A movable block is embedded in the movable groove. The top surface of the movable block is flush with the bottom plate. There is an insertion gap between the left and right sides of the guide block and the inner sidewall of the movable opening. The bottom surface of the bottom plate is connected to a movable cylinder corresponding to the front or rear side of the movable opening. The movable cylinder is horizontally arranged, and the output end of the movable cylinder is connected to a lower connecting block. The top surface of the connecting block is protruding with an upper connecting block that extends into the insertion gap and can move back and forth in the movable opening. The top surface of the upper connecting block is connected to the movable block.

[0016] The two placement strips have a recessed lower extension inlet on opposite sides that communicates with the placement groove. The cover plate has an upper extension inlet at the position corresponding to the lower extension inlet, which is connected to and leads to the outside of one side of the cover plate. The lower extension inlet is the aforementioned extension structure.

[0017] This invention discloses an automated CNC fixture for manufacturing mobile phone hinge components. In application, workpieces are placed systematically into the placement area of ​​a placement tray. A protective plate is folded to expose the placement area. A robotic arm controls the chuck on the picking head to grip the workpiece. The protective plate resets to cover the placement tray, the cover rises, exposing the placement groove on the bottom plate. The robotic arm controls the chuck to place the workpiece into the placement groove. The cover descends and presses against the top surface of the workpiece to prevent displacement during processing. Then, the CNC machining head performs CNC machining on the workpiece in the placement groove. After machining, the cover rises, the robotic arm controls the chuck to remove the workpiece from the placement groove through an extension structure, the protective plate folds, and the robotic arm controls the chuck to return the workpiece to its original position on the placement tray. Compared with existing technologies, the loading and unloading of workpieces is controlled by a robotic arm, and the picking and placing of the cover is also automated. The workpiece positioning is more precise, the machined workpieces are more consistent, the degree of automation is high, the processing cycle is short, and the production efficiency is high. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the present invention.

[0019] Figure 2 This is another structural schematic diagram of the present invention.

[0020] Figure 3 This is a schematic diagram of the structure of the picking head of the present invention.

[0021] Figure 4 This is a schematic diagram of the fixing fixture of the present invention, omitting the cover plate.

[0022] Figure 5 This is a schematic diagram of the structure of the fixing fixture of the present invention.

[0023] Figure 6 This is another structural schematic diagram of the fixing fixture of the present invention.

[0024] Figure 7 This is a schematic diagram of the structure of the base plate of the present invention.

[0025] Figure 8 This is a schematic diagram of the cover plate of the present invention.

[0026] Figure 9 This is a schematic diagram of the structure of the right seat of the present invention. Detailed Implementation

[0027] To further explain the technical solution of the present invention, a detailed description is provided below in conjunction with the accompanying drawings.

[0028] An automated CNC fixture for manufacturing mobile phone hinge components, such as Figures 1-9As shown, the device includes a base 1 and a fixing fixture. The fixing fixture is mounted on the base 1 and has a mounting base 21 mounted on the base 1, a base plate 22 mounted on the mounting base 21, and a cover plate 23 covering the base plate 22. The base plate 22 has several placement slots, and several cover plates 23 are correspondingly provided, with each cover plate 23 corresponding to one of the placement slots. Specifically, the base 1 has a horizontally arranged lower plate, with the horizontal direction of the lower plate being the left-right direction. The left and right sides of the top surface of the lower plate are respectively provided with a left seat 11 and a right seat 12. The left seat 11 is provided with a drive mounting base 21 circumferentially mounted on it. A rotating drive device is included, with its output end facing right and connected to a mounting base 21. The mounting base 21 has a hollow structure extending vertically through the base. The left side of the mounting base 21 is connected to the output end of the rotating drive device. A base plate 22 is mounted on the top surface of the mounting base 21, positioned between the left seat 11 and the right seat 12. The front side of the base plate 22 extends forward beyond the front side of the mounting base, and the rear side extends backward beyond the rear side of the mounting base 21. The method by which the rotating drive device drives the mounting base 21 to rotate circumferentially is well-known to those skilled in the art and will not be elaborated upon here. In application, the workpiece is placed on the placement slot, and a cover plate is placed over the workpiece in the placement slot. Then, the CNC machining head processes the workpiece in the placement slot. During the processing, the rotating drive device drives the mounting base to rotate, thereby enabling the processing of different parts of the workpiece.

[0029] On the right side of the fixed fixture, a placement tray 3 for placing workpieces is also provided on the frame. The placement tray 3 has a placement area for orderly placement of several workpieces, and a dirt-proof plate 4 is provided on the placement tray 3 above the placement area. The dirt-proof plate 4 is slidably installed above the placement tray 3 so as to open or hide the placement area. Specifically, the placement tray 3 is suspended above the top right side of the lower plate by the aforementioned right seat 12. The top surface of the placement tray 3 has a plurality of material grooves 100 for embedding workpieces. The material grooves are arranged in a matrix, each material groove including a plurality of columns and a plurality of rows forming a matrix arrangement. The material grooves 100 constitute the aforementioned placement area. The dirt-proof plate 4 is suspended above the top surface of the placement tray 3 and installed on the right seat. The right seat 12 is equipped with a sliding drive device that drives the anti-fouling plate 4 to open or hide the placement area. Specifically, the right seat 12 has a lower horizontal plate 121, side vertical plates 122, and side guide blocks 123. The lower horizontal plate 121 lies horizontally and is suspended above the right side of the top surface of the lower plate. Several vertically arranged columns 1211 are connected to the bottom surface of the lower horizontal plate 121, and a locking plate 1212 is connected to the bottom surface of each column 1211. The locking plate 1212 is locked to the right end of the top surface of the lower plate. Two side vertical plates 122 and two side guide blocks 123 are provided and extend in the front-back direction. The two side vertical plates 122 are respectively locked to the left and right sides of the lower horizontal plate 121. The placement tray 3 is stacked on the top surface of the lower horizontal plate 121. The two guide blocks 123 are respectively locked above the two vertical plates 122. The opposite side of the two guide blocks 123 is provided with a groove that runs through the front and back direction. The upper end of the bottom of the two grooves is provided with a guide groove that runs through the front and back direction. The two grooves are located between the two guide grooves. A rear sealing block 1231 is provided between the rear ends of the two side guide blocks 123. The bottom of the two guide grooves and the front side of the rear sealing block 1231 form a dirt-proof space in which the dirt-proof plate 4 lies horizontally in the front and back direction. The placement tray falls into the area below the dirt-proof space, and the left and right ends of the dirt-proof plate 4 extend into the two guide grooves respectively. The sliding drive device is installed on the side vertical plate 122, that is, the dirt-proof plate 4 is a louvered folding plate. The two side vertical plates 122 are divided into a left vertical plate and a right vertical plate. The vertical plate has a slide rail extending in the front-to-back direction on the left side of the left vertical plate, with a left slider slidingly engaged on the slide rail. The right vertical plate has a guide rod on the right side, with a right slider slidingly engaged on the guide rod. A left locking plate is connected to the left slider and locked to the front side of the anti-fouling plate 4. A right locking plate is connected to the right slider and locked to the front side of the anti-fouling plate 4. The side vertical plate 122 is equipped with a sliding cylinder (not shown in the figure) that is connected to the left or right slider and can drive the left or right slider to move back and forth. The sliding cylinder is the aforementioned sliding drive device. The way in which the sliding cylinder drives the left or right slider to move back and forth, thereby causing the anti-fouling plate 4 to open forward and fold backward, is a well-known technology to those skilled in the art and will not be described in detail here.In application, the workpieces are placed sequentially in the material trough 100, and the placement tray 3 is placed on the top surface of the lower horizontal plate 121. The sliding cylinder is activated, which drives the left and right locking plates to move forward, pulling open the anti-fouling plate 4 to block the placement tray from contamination. The sliding cylinder is activated again, which drives the locking plates to move backward, and the anti-fouling plate 4 is gradually folded, exposing the material troughs in the placement tray row by row for easy material removal.

[0030] The base 1 is equipped with a robotic arm (not shown in the figure) that controls the picking head 5 to switch and move between the placement area and the fixed fixture, and to tilt. The control end of the robotic arm is equipped with the picking head 5 for picking up and placing workpieces, and the bottom surface of the picking head 5 is equipped with a chuck 6 for clamping workpieces. Specifically, the picking head 5 has a lower block 51 and a side block 52. The lower block 51 is horizontally arranged, and the side block 52 is vertically located on one side of the top surface of the lower block 51. The side block 52 is connected to the control end of the robotic arm through an elastic frame. That is, the elastic frame has an upper connecting block 521, a lower connecting block 522, and several spaced vertically arranged between the upper connecting block and the lower connecting block. The compression spring 523, the lower connecting block 522 is connected to the top surface of the side block 52, and the top surface of the upper connecting block 521 is locked together with the control end of the robot. The specific structure of the robot and the way in which the robot can control the movement and pitch of the picking head 5 are well known to those skilled in the art and will not be described in detail here. The top surface of the lower block 51 is provided with a number of finger cylinders 511 arranged laterally in the left-right direction, and there are a number of corresponding grippers 6. The output end of the finger cylinder 511 is set downward and is connected to the gripper 6. There are two grippers on the lower block 51 between each pair of grippers 6. The first jet head 512 has two output ends that are inclined downwards and positioned opposite each other. The chuck 6 has two jaws that are laterally opposite each other below the lower block 51, forming a clamping space. A clamping groove 200 for the workpiece to be inserted is recessed below the opposite side of the two jaws. A picking groove 300 is formed on the top surface of the placement tray 3, corresponding to the position of a row of material grooves extending in the front-back direction. That is, when there are three rows of material grooves, there are three picking grooves. The bottom of the picking groove 300 is provided with a support block 31 for supporting the workpiece at the position corresponding to each material groove. The spacing between the two material feeding slots matches the spacing between the two clamps. A second jet head 513 is provided on the lower block 51 between the two clamps. The output end of the first jet head 512 is a high-pressure jet head, and the output end of the second jet head 513 is a high-pressure telescopic jet head. Both the first jet head 512 and the second jet head 513 are connected to a jetting device that causes the first jet head 512 and the second jet head 513 to spray high-pressure gas. The way the jetting device causes the first jet head 512 and the second jet head 513 to spray high-pressure gas and the specific structure of the high-pressure telescopic jet head are technologies known to those skilled in the art and will not be described in detail here.In application, the robotic arm controls the picking head to move directly above the placement tray 3. The finger cylinder 511 drives the two grippers on the chuck to separate, and the robotic arm controls each clamping space to correspond to each material slot, ensuring the workpiece falls into the corresponding clamping slot. The finger cylinder 511 drives the two grippers to clamp the workpiece, and the robotic arm then controls the two grippers to place the workpiece into the placement slot. The CNC machining head processes the workpiece. After processing, the first air nozzle 512 and the second air nozzle 513 blow air onto the workpiece to remove debris from its surface. At this time, the anti-fouling plate 4 blocks the debris from falling into the material slot 100. Then, the two grippers clamp the workpiece again and place it back into the placement tray. Furthermore, the elastic frame provides flexible floating space for the chuck when picking up and placing workpieces, absorbing the positioning error of the robotic arm and buffering contact impact.

[0031] The cover plate 23 is installed on the base plate 22 in a way that allows it to move up and down. Specifically, the base plate 22 is a strip-shaped plate that lies horizontally in the left-right direction. The front and rear sides of the strip-shaped plate are recessed with strip-shaped grooves that extend in the left-right direction and reach the top surface of the strip-shaped plate. Placement strips 221 are locked within these grooves; that is, there are two placement strips 221. The top surface of each placement strip 221 is recessed with several horizontally spaced placement slots 400 for embedding workpieces. Taking an example where the material tray has six columns and several rows, three corresponding picking heads, and three placement slots on each placement strip, one placement strip 221 has three placement slots 400. The three placement slots form a row of placement slots. Each placement slot 400... Each of the above-mentioned cover plates is provided in a corresponding manner. Each placement strip has three cover plates above it. The spacing between each picking head, the spacing between each picking groove, and the spacing between each placement groove are all set in a corresponding manner, so that the picking head 6 can clamp the workpieces in three grooves in a row at one time and place the three workpieces into the placement groove at one time. The first end of the cover plate 23 is stacked on the top surface of the placement strip 221, and the first end of the cover plate 23 is provided with a processing port for exposing the processing part of the workpiece. The second end of the cover plate 23 is stacked on the top surface of the base plate 22. The base plate 22 is provided with a lifting drive device that controls the cover plate 23 to press down on the workpiece in the placement groove or to move up away from the workpiece in the placement groove. The lifting drive device is connected to the second end of the cover plate 23.That is, the cover plates 23 above the two placement strips 221 are arranged one-to-one, and the two cover plates 23 arranged in opposite directions form a group of cover plates 23. Each group of cover plates 23 is provided with a lifting drive device. Taking the example of two cover plates arranged in opposite directions on a base plate, the lifting drive device has a lifting cylinder 61, a driving block 62 and a driving rod 63. The lifting cylinder 61 is vertically locked to the bottom surface of the base plate 22. The output end of the lifting cylinder 61 is arranged upward and connected to the driving block 62. The base plate 22 has a lifting groove that runs vertically through the base plate and allows the driving block 62 to move up and down. There are two driving rods 63, both of which extend in the front-to-back direction. The front end of the drive rod 62 is positioned opposite to the rear end of another drive rod 63 and connected to the upper end of the drive block 62. The drive rod on the front side is the front drive rod, and the drive rod on the rear side is the rear drive rod. The cover plate on the front side is the front cover plate, and the cover plate on the rear side is the rear cover plate. The rear end of the front drive rod is fixedly connected to the front end of the rear drive rod, the front end of the front drive rod is fixedly connected to the front cover plate, and the rear end of the rear drive rod is fixedly connected to the rear cover plate. The middle parts of the front drive rod and the middle parts of the rear drive rod are both hinged to the bottom plate. That is, the top surface of the drive block 62 is recessed with a first fixing groove that runs through the front and rear. The rear end of the front drive rod and the front end of the rear drive rod both extend into the first fixing groove, and the drive block 62 is provided with a groove extending along the left and right sides. A first fixing rod 621, horizontally positioned, passes through the opposite ends of two driving rods 63 and is fixed together with a driving block 62. The driving block 62 has an outer first fixing hole that extends horizontally through a first fixing groove. The rear end of the front driving rod and the front end of the rear driving rod have inner first fixing holes that extend horizontally through the first fixing rod 621 at their respective positions. The first fixing rod 621 passes through the outer and inner first fixing holes to fix the rear end of the front driving rod and the front end of the rear driving rod to the driving block. The front and rear ends of the top surface of the base plate 22 are both recessed with hinge grooves extending from the lifting groove to below the cover plate 23. Both hinge grooves extend horizontally. The bottom of the hinge groove is flush with the bottom of the first fixed groove. The opposite ends of the two driving rods 63 are embedded in the hinge groove and hinged together with the base plate 22 through the hinge rod. The hinge rod is horizontally arranged in the left-right direction and is located between the cover plate 23 and the driving block 62. The hinge rod is located in the middle of the front driving rod and the rear driving rod. The top surface of the base plate 22 is recessed with a replacement groove corresponding to the left and right sides of the hinge rod. The replacement groove is locked with a replacement block 222. The two replacement blocks 222 are provided with external hinge holes that are arranged through in the left-right direction. The driving rod is provided with an internal hinge hole that is arranged through in the left and right directions at the position corresponding to the hinge hole. The hinge rod passes through the internal hinge hole and the external hinge hole to hinge the driving rod together with the replacement block 222.The top surface of the base plate 22, located below the cover plate 23, has vertically extending movable openings 500. These openings are connected to hinge slots and are rectangular in shape. The movable openings 500 are also connected to strip-shaped grooves. The opposite ends of the two driving rods 63 extend into the two movable openings 500 respectively. The bottom surface of the cover plate 23 has a protruding fixing block 231 that extends into the movable openings 500. The bottom surface of the fixing block 231 has a recessed second fixing groove 600 that extends through the front and back. The opposite ends of the two driving rods 63 extend into the second fixing groove 600 and pass through the second... The fixed rod is fixed to the corresponding cover plate 23. The way the opposite ends of the two driving rods 63 are fixed to the cover plate is similar to the way the opposite ends of the two driving rods are fixed to the driving block, which will not be elaborated here. The bottom plate 22 has a guide block 223 protruding on the inner wall of the movable opening 500 facing the driving block 62, which extends in the vertical direction and abuts against the end of the driving rod 63 facing away from the driving block 62. The guide block 223 has a guide groove 700 that extends in the vertical direction and allows the end of the driving rod 63 to move up and down on one side of the driving rod 63. In application, the lifting cylinder 61 is activated, and the driving block 62 moves upward. Since the front driving rod and the rear driving rod are hinged to the bottom plate, the rear end of the front driving rod and the front end of the rear driving rod move upward, and the front end of the front driving rod and the rear end of the rear driving rod move downward, thereby pressing the cover plate downward. The opposite ends of the two driving rods move up and down along the guide groove, making the cover plate less prone to displacement. In addition, the corresponding number of material troughs, picking heads and placement slots can improve the efficiency of loading and unloading. Furthermore, it features two placement bars: a first placement bar and a second placement bar. While a workpiece is being CNC machined on the first placement bar, it can be simultaneously loaded onto the second placement bar. After the second placement bar is loaded, CNC machining can begin, and the finished workpiece on the first placement bar can then be unloaded. This eliminates the waiting time for loading and unloading, allowing the CNC machining head and robotic arm to operate simultaneously, resulting in higher processing efficiency.

[0032] The sidewall of the placement slot is provided with an insertion structure for the chuck 6 to extend laterally into it. Specifically, the opposite sides of the two placement strips 221 are recessed with a lower extension inlet 800 that communicates with the placement slot. The two placement slots are located between the two corresponding extension inlets. The lower extension inlet is the aforementioned insertion structure. The cover plate 23 is provided with an upper extension inlet at the position corresponding to the lower extension inlet 800, which communicates with the processing port and extends to the outside of one side of the cover plate 23. In application, the lifting cylinder drives the driving block 62 to move downward, at which time the cover plate moves upward, and the corresponding placement slot is offset by a certain angle. At this time, the robot arm controls the chuck to extend from the lower extension inlet into the placement slot to pick up the workpiece.

[0033] This invention discloses an automated CNC fixture for manufacturing mobile phone hinge components. In application, workpieces are placed systematically into the material slots of a placement tray. The placement tray 3 is then placed on the top surface of the lower horizontal plate 121, extending in the front-to-back direction. A sliding cylinder is activated, causing the anti-fouling plate 4 to fold backward, exposing one row of material slots. A robotic arm controls the grippers on the picking head 5 to extend into the exposed material slot area, allowing the workpiece to fall into the gripping area. A finger cylinder drives two grippers to clamp the workpiece. The sliding cylinder resets, and the anti-fouling plate 4 covers the placement tray. Then, a lifting cylinder is activated, raising the cover plate and exposing the placement slots on the placement strip. The robotic arm controls the chuck to place the workpiece into the placement slot of the placement strip. The cover plate descends and presses against the top surface of the workpiece to prevent displacement during processing. Then, the workpiece in the placement slot is CNC machined. After the workpiece is machined, the cover plate rises, and the robotic arm controls the chuck to clamp the workpiece out of the placement slot through the lower extension inlet. The anti-fouling plate is folded four times, and the robotic arm controls the chuck to place the workpiece back to its original position on the placement tray. Compared with existing technologies, the loading and unloading of workpieces is controlled by a robotic arm, and the picking and placing of the cover plate is also automatically controlled. The workpiece positioning is more accurate, the processed workpieces are more consistent, the degree of automation is high, the processing cycle is short, and the production efficiency is high.

[0034] In this invention, preferably, the top surface of the base plate 22 is recessed with a plurality of movable grooves that are connected to each of the placement grooves. The bottom of the movable grooves is flush with the bottom of the placement grooves. Two movable grooves are located between two placement grooves. Movable blocks 7 are embedded in the movable grooves. The movable blocks 7 abut against the workpiece. That is, the movable blocks on the front side are front movable blocks, and the movable blocks on the rear side are rear movable blocks. The front side of the front movable block contacts the rear side of the workpiece located on the front side of the front movable block, and the rear side of the rear movable block contacts the rear side of the workpiece located on the rear side of the rear movable block.

[0035] The top surface of the movable block 7 is flush with the bottom plate 22. The movable block 7 is located on the side of the placement groove facing the driving block. There is an insertion gap between the left and right sides of the guide block 223 and the left and right inner sidewalls of the movable opening 500. The bottom surface of the bottom plate 22 is connected to the front or rear side of the movable opening 500. The movable cylinder is located on the front or rear side of the mounting base. The movable cylinder 8 is horizontally arranged. The output end of the movable cylinder 8 is connected to the lower connecting block 81. The top surface of the lower connecting block 81 has upper connecting blocks 811 protruding at both the left and right ends, which can extend into the insertion gap and move back and forth in the movable opening 500. The top surface of the upper connecting block 811 is connected to the movable block 7. When in use, the moving cylinder 8 is activated, which drives the upper connecting block 811 to move back and forth, thereby driving the moving block 7 to move back and forth. When the moving block 7 moves toward the workpiece, it can press against the front or rear side of the workpiece, so that the workpiece can be more stably placed in the placement slot. After the workpiece is processed, the moving cylinder controls the moving block 7 to move away from the workpiece, so that the chuck can easily pick up the workpiece.

[0036] The form of the workpiece of the present invention is not limited to the illustrations and embodiments shown in this case. Any appropriate changes or modifications made to it based on similar ideas should be considered as not departing from the patent scope of the present invention.

Claims

1. An automated CNC fixture for manufacturing mobile phone hinge parts, comprising a base and a fixing fixture, the fixing fixture being mounted on the base, the fixing fixture having a mounting base mounted on the base, a base plate mounted on the mounting base, and a cover plate covering the base plate, the base plate having a plurality of placement slots, and a plurality of cover plates correspondingly arranged thereto, each cover plate corresponding to one of the placement slots; characterized in that: It also includes a placement tray for placing workpieces and a picking head for picking up and placing workpieces. The placement tray is fixedly installed on the machine base and located outside the fixed fixture. The placement tray has a placement area for orderly placement of several workpieces, and a dirt-proof plate is provided on the placement tray above the placement area. The dirt-proof plate is slidably installed above the placement tray in a way that can open or hide the placement area. A robot arm is provided outside the machine base to control the picking head to switch between the placement area and the fixed fixture and to tilt. The picking head is installed on the control end of the robot arm, and the bottom surface of the picking head has a chuck for clamping and placing workpieces. The cover plate is installed on the base plate in a way that can be lifted and lowered, and the side wall of the placement slot has an extension structure for the chuck to extend laterally into it.

2. The automated CNC fixture for manufacturing mobile phone hinge parts according to claim 1, characterized in that: The base has a horizontally positioned lower plate, with the horizontal direction of the lower plate being the left-right direction. A left seat and a right seat are respectively located on the left and right sides of the top surface of the lower plate. A rotation drive device is provided on the left seat to drive the mounting base to rotate circumferentially. The output end of the rotation drive device is located to the right and is connected to the mounting base. The base plate is installed on the top surface of the mounting base and is located between the left and right seats. The placement tray is suspended above the right side of the top surface of the lower plate via the right seat. The top surface of the placement tray has a plurality of grooves for embedding workpieces. The grooves are arranged in a matrix and constitute the placement area. The anti-fouling plate is suspended above the top surface of the placement tray and is installed on the right seat. The right seat has a sliding drive device for driving the anti-fouling plate to open or hide the placement area.

3. An automated CNC fixture for manufacturing mobile phone hinge parts according to claim 2, characterized in that: The right seat has a lower horizontal plate, side vertical plates, and side guide blocks. The lower horizontal plate lies horizontally and is suspended above the right side of the top surface of the lower plate in the front-back direction. There are two side vertical plates and two side guide blocks, which extend in the front-back direction. The two side vertical plates are locked to the left and right sides of the lower horizontal plate respectively. The placement tray is placed on the top surface of the lower horizontal plate. The two side guide blocks are locked above the two side vertical plates respectively. The opposite side of the two side guide blocks is recessed with a groove. The upper end of the bottom of the groove of each of the two grooves is recessed with a guide groove that runs through in the front-back direction. A rear sealing block is provided between the rear ends of the two side guide blocks. The bottom of the two guide grooves and the front side of the rear sealing block form a dirt-proof space in which the dirt-proof plate lies horizontally in the front-back direction. The left and right ends of the dirt-proof plate extend into the two guide grooves respectively. The placement tray falls into the area below the dirt-proof space. The sliding drive device is installed on the side vertical plate.

4. An automated CNC fixture for manufacturing mobile phone hinge parts according to claim 3, characterized in that: The anti-fouling plate is a louvered folding plate. The two side vertical plates are divided into a left vertical plate and a right vertical plate. The left side of the left vertical plate is provided with a slide rail extending in the front-back direction. A left slider is slidably fitted on the slide rail. The right side of the right vertical plate is provided with a guide rod. A right slider is slidably fitted on the guide rod. Both the left and right sliders are connected to a locking plate that is locked together with the front side of the anti-fouling plate. The side vertical plate is provided with a sliding cylinder that is connected to the left or right slider and can drive the left or right slider to move back and forth. The sliding cylinder is the aforementioned sliding drive device.

5. An automated CNC fixture for manufacturing mobile phone hinge parts according to claim 3, characterized in that: The picking head has a lower block and a side block. The lower block is horizontally arranged, and the side block is vertically arranged on one side of the top surface of the lower block. The side block is connected to the control end of the robot arm through an elastic frame. The top surface of the lower block is provided with several finger cylinders that are horizontally spaced along the horizontal direction of the lower block. There are several grippers corresponding to each finger cylinder. The output end of the finger cylinder is set downward and is connected to the gripper. A first air jet is provided on the lower block between two grippers. The gripper has two jaws that are horizontally opposite each other below the lower block. The horizontal direction of the two grippers is perpendicular to the horizontal direction of the lower block. A second air jet is provided on the lower block between two jaws.

6. An automated CNC fixture for manufacturing mobile phone hinge parts according to claim 2, characterized in that: The base plate is a strip-shaped plate lying horizontally in the left-right direction. The front and rear sides of the strip-shaped plate are recessed with strip-shaped grooves that extend in the left-right direction and lead to the top surface of the strip-shaped plate. A placement strip is detachably installed in the strip-shaped groove. The top surface of the placement strip is recessed with several horizontally spaced placement slots for workpieces to be embedded in. The first end of the cover plate overlaps the top surface of the placement strip, and the first end of the cover plate has a processing opening for exposing the processing part of the workpiece. The second end of the cover plate overlaps the top surface of the base plate. The base plate is provided with a lifting drive device that controls the cover plate to press down on the workpiece in the placement slot or move upward away from the workpiece in the placement slot, and the lifting drive device is connected to the second end of the cover plate.

7. An automated CNC fixture for manufacturing mobile phone hinge parts according to claim 6, characterized in that: Each of the two cover plates above the placement strips is arranged in a one-to-one correspondence, and two cover plates arranged in opposite directions form a set of cover plates. Each set of cover plates is equipped with a lifting drive device. The lifting drive device has a lifting cylinder, a driving block, and a driving rod. The lifting cylinder is vertically placed on the bottom surface of the base plate, with the output end of the lifting cylinder facing upward and connected to the driving block. The base plate has a lifting groove that runs vertically through the base plate and allows the driving block to move up and down. There are two driving rods, both of which extend in the front-to-back direction. The front end of one driving rod and the rear end of the other driving rod are arranged in opposite directions and connected to the upper end of the driving block. The opposite ends of the two driving rods are respectively connected to a set of cover plates, and the middle of both driving rods are hinged to the base plate.

8. An automated CNC fixture for manufacturing mobile phone hinge parts according to claim 7, characterized in that: The top surface of the drive block is recessed with a first fixing groove that extends through the front and rear. The opposite ends of the two drive rods extend into the first fixing groove. The drive block also has a first fixing rod horizontally positioned in the left-right direction. The first fixing rod passes through the opposite ends of the two drive rods and is fixed to the drive block. The front and rear ends of the top surface of the base plate are both recessed with hinge grooves extending from the lifting groove to below the cover plate. Both hinge grooves extend in the front-back direction, and their bottoms are connected to and flush with the bottoms of the first fixing grooves. The opposite ends of the two drive rods are embedded in the hinge grooves and hinged to the base plate via hinge rods. The hinge rods are horizontally positioned in the left-right direction and are located in the middle of the drive rods. The top of the base plate... The cover plate has a through-hole opening located below it. The opening is connected to the hinge groove. The opposite ends of the two driving rods extend into the two openings. The bottom surface of the cover plate has a fixed block that extends into the opening. The bottom surface of the fixed block has a second fixed groove that extends through it. The opposite end of the driving rod extends into the second fixed groove and is fixed to the corresponding cover plate by the second fixed rod. The inner wall of the opening facing the driving block has a guide block that extends vertically and abuts against the opposite end of the driving rod. The guide block has a guide groove that extends vertically and allows the end of the driving rod to move vertically.

9. An automated CNC fixture for manufacturing mobile phone hinge parts according to claim 8, characterized in that: The top surface of the placement strip is recessed with a movable groove that communicates with the placement groove. The movable groove is located on the side of the placement groove facing the driving block. The bottom of the movable groove is flush with the bottom of the placement groove. A movable block is embedded in the movable groove. The top surface of the movable block is flush with the bottom plate. There is an insertion gap between the left and right sides of the guide block and the inner sidewall of the movable opening. The bottom surface of the bottom plate is connected to a movable cylinder corresponding to the front or rear side of the movable opening. The movable cylinder is horizontally arranged, and the output end of the movable cylinder is connected to a lower connecting block. The top surface of the connecting block is protruding with an upper connecting block that extends into the insertion gap and can move back and forth in the movable opening. The top surface of the upper connecting block is connected to the movable block.

10. An automated CNC fixture for manufacturing mobile phone hinge parts according to claim 6, characterized in that: The two placement strips have a recessed lower extension inlet on opposite sides that communicates with the placement groove. The cover plate has an upper extension inlet at the position corresponding to the lower extension inlet, which is connected to and leads to the outside of one side of the cover plate. The lower extension inlet is the aforementioned extension structure.

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