Splicing type child toy metal component processing device

Abstract

The present application relates to the technical field of machining, and discloses a spliced children's toy metal part machining device, which comprises a workbench, a magnetic fixing seat for fixing a cylindrical workpiece is arranged on the top of the workbench, and translation assemblies are symmetrically arranged on opposite sides of the magnetic fixing seat. The present application integrates chamfering, drilling and inner and outer wall polishing in the same device, so that three processes can be sequentially completed by clamping the workpiece once, and the repeated circulation and positioning error between processes are eliminated. The translation assemblies and the chamfering assembly act cooperatively, so that the chamfering tool functions as a clamping clamp, and seamless switching of workpiece clamping and rotation is realized. The inner support assembly integrates drilling support and inner wall polishing, and finally the workpiece is rotated by the chamfering assembly, the inner and outer polishing plates abut against the inner and outer walls of the workpiece at the same time, synchronous polishing of the inner and outer walls is realized, the device structure is simplified, and the machining efficiency and the safety surface quality are improved.

Description

Technical Field

[0001] This invention relates to the field of machining technology, specifically to a processing device for metal parts of children's toys that can be assembled. Background Technology

[0002] Interlocking children's toys are one of the fastest-growing toy categories in recent years. Their metal parts are usually made of metal sheets through processes such as stamping and etching, and have advantages such as high gloss, strong plasticity, and good assembly experience. Typical metal interlocking toy parts include various ring-shaped connectors, bushing-type parts, and interlocking components with circumferentially distributed holes. Among them, cylindrical metal parts are common connecting and transmission elements in interlocking toys.

[0003] Through in-depth research, the inventors of this application have discovered that most existing metal part processing devices operate independently for the chamfering, hole-making, and polishing processes of cylindrical parts. These processes require multiple transfers and are fragmented and lengthy, which not only severely restricts production efficiency but also increases the risk of tooling positioning errors accumulating. Currently, there is a lack of dedicated equipment that can systematically integrate and process the above-mentioned multiple processes. Summary of the Invention

[0004] This invention provides a modular metal parts processing device for children's toys, aiming to solve the problems of existing cylindrical metal parts processing devices that perform chamfering, hole opening, and polishing in separate sequences, requiring the workpiece to be transferred multiple times between each process, resulting in fragmented processes, low efficiency, and a lack of integrated devices for comprehensively processing the above processes.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solution: a metal parts processing device for splicing children's toys, including a workbench, a magnetic fixing seat for fixing cylindrical workpieces is provided on the top of the workbench, translation components are symmetrically arranged on opposite sides of the magnetic fixing seat, and chamfering components and inner wall polishing components are sequentially installed on each translation component in a direction away from or close to the magnetic fixing seat. The inner wall polishing assembly includes two sets of electric push rods fixedly installed on the outside of the chamfering assembly, a connecting plate fixedly connected to the telescopic ends of the two sets of electric push rods, an inner support assembly installed on the outside of the connecting plate, and a polishing plate disposed on the outside of the inner support assembly. The inner support assembly extends into the interior of the cylindrical workpiece under the drive of the electric push rods and drives the polishing plate to abut against the inner wall of the cylindrical workpiece. The inner wall polishing assembly is also provided with an opening assembly, which is installed on the outside of the inner support assembly and is used to drill holes in the circumferential wall of the cylindrical workpiece.

[0006] By adopting the above technical solution, the chamfering component, the inner wall polishing component, and the hole-opening component are integrated on the worktable and symmetrically arranged around the magnetic fixing seat. The translation component drives the chamfering component and the inner wall polishing component to translate as a whole to achieve the centering and chamfering of the workpiece. The inner wall polishing component is driven by an electric push rod to extend the inner support component into the workpiece, so that the hole-opening component completes the drilling and the polishing plate is attached to the inner wall for polishing. Thus, the chamfering, drilling, and inner wall polishing of the workpiece are completed sequentially on the same device without the need to transfer the workpiece in the middle, which simplifies the processing flow.

[0007] Preferably, the translation component includes side plates fixedly connected to both sides of the top of the worktable, a double-ended lead screw rotatably connected between the two side plates via bearings, a drive motor is fixedly installed on the outer side of one side plate, the output end of the drive motor is fixedly connected to one end of the double-ended lead screw, a guide rod is also fixedly connected between the two side plates, the threads on both sides of the double-ended lead screw are in opposite directions, and a moving plate is threaded to each opposite side of the double-ended lead screw.

[0008] Preferably, the chamfering assembly includes a second drive motor fixedly mounted on the top of the movable plate, the output end of the second drive motor being fixedly connected to a transmission gear, and a through groove being provided on the outer side of the movable plate, with a rotating component slidably connected within the through groove.

[0009] Preferably, the rotating component includes a rotating ring plate that is slidably connected to the moving plate. A gear ring is fixedly connected to the outer side of the rotating ring plate, and the gear ring meshes with a transmission gear. An arc-shaped chamfered workpiece is fixedly connected to the side of the rotating ring plate near the cylindrical workpiece through several connecting rods. The arc-shaped chamfered workpiece is used to chamfer the side of the cylindrical workpiece.

[0010] Preferably, the inner support assembly includes a single-ended lead screw rotatably connected to the outside of the connecting plate via a bearing. An outer sleeve is fitted around the outside of the single-ended lead screw, and the outer sleeve is fixedly connected to the connecting plate. Several sets of force transmission rods (first type) are equidistantly arranged on the outer circumference of the outer sleeve, and the force transmission rods (first type) are hinged to the outer sleeve. A movable sleeve is threaded onto the outside of the single-ended lead screw. Several force transmission rods (second type) are equidistantly arranged on the outer circumference of the movable sleeve, and the force transmission rods (second type) are hinged to the movable sleeve. The middle portions of the force transmission rods (first type) and (second type) are rotatably connected via a pin. Movable seats are hinged to the side of each force transmission rod (first type) and (second type) away from the single-ended lead screw. A drive motor (third type) is fixedly installed on the other side of the connecting plate, and the output end of the drive motor (third type) is fixedly connected to one end of the single-ended lead screw.

[0011] Preferably, the polishing plate is fixedly mounted on the outside of the movable seat.

[0012] Preferably, the hole-opening assembly includes an electric push rod two that is movably connected to the outside of the movable seat via a pin. The telescopic end of the electric push rod two is hinged to the housing of the drive motor four, and the output end of the drive motor four is fixedly connected to a drill bit via a flange.

[0013] Preferably, the top of the worktable further includes an outer wall polishing assembly; The outer wall polishing assembly includes a top plate fixedly connected to the top of the workbench. An electric push rod three is fixedly installed on the outer side of the top plate. A polishing plate two is fixedly connected to the extended end of the electric push rod three. Two sets of telescopic limiting rods are fixedly connected between the polishing plate two and the top plate.

[0014] Preferably, the two sets of electric push rods are fixedly installed on the opposite outer corners of the moving plate.

[0015] Preferably, the arc-shaped chamfered workpiece is adapted to the side wall of the cylindrical workpiece.

[0016] This invention provides a processing device for metal parts of assembled children's toys. It has the following beneficial effects: 1. This invention integrates the chamfering component, the inner wall polishing component, and the hole-opening component into the same device and arranges them symmetrically around the translation component. This allows a cylindrical workpiece to complete the three processes of side chamfering, circumferential wall drilling, and simultaneous inner and outer wall polishing in a single clamping. This eliminates the need for repeated transfer between multiple machines, fundamentally solving the problem of low efficiency caused by dispersed processes. At the same time, it eliminates the accumulation of positioning errors caused by multiple clampings, significantly improving processing accuracy and consistency.

[0017] 2. This invention enables the workpiece to continue moving towards the workpiece direction after the chamfering process is completed by the coordinated action of the translation component and the chamfering component. The chamfering tool is switched to the clamping fixture. With the switching of power on and off of the magnetic fixing seat, the workpiece clamping method is seamlessly changed. The workpiece can switch from a stationary state to a rotatable state in the same station without the need for an additional rotation drive source. The structure is compact and the control logic is simple.

[0018] 3. This invention integrates a polishing plate and a hole-opening component on the inner support assembly. With the radial expansion and contraction of the scissor-type linkage mechanism, the inner support assembly, after extending into the workpiece, first assists the hole-opening component in completing the drilling in a supporting state, and then switches to the inner wall polishing state. This realizes the reuse of two functions of drilling support and inner wall polishing in one set of inner support assembly, which simplifies the device structure and reduces manufacturing costs.

[0019] 4. This invention uses a chamfering component to drive the workpiece to rotate, and with the inner and outer wall polishing components clamping it in the same way, it achieves synchronous circumferential grinding and polishing of the inner and outer walls of the workpiece. Compared with the traditional method where the inner and outer walls need to be processed on different equipment in sequence, this invention significantly shortens the polishing time. Moreover, the simultaneous processing of the inner and outer walls avoids the risk of scratches on the workpiece surface caused by secondary clamping, ensuring the smoothness and safety of the surface of the metal parts of children's toys. Attached Figure Description

[0020] Figure 1 This is a three-dimensional schematic diagram of the entire invention; Figure 2 This is a three-dimensional schematic diagram of the translation component of the present invention; Figure 3 This is a three-dimensional schematic diagram of the chamfering component of the present invention; Figure 4 This is a three-dimensional schematic diagram of the rotating component of the present invention; Figure 5 This is a three-dimensional schematic diagram of the cylindrical inner wall polishing assembly of the present invention; Figure 6 This is an exploded perspective view of the polishing actuator of the present invention; Figure 7 This is a three-dimensional schematic diagram of the installation position of the polishing plate of the present invention; Figure 8 For the present invention Figure 7 Enlarged 3D view of part A in the middle; Figure 9 This is a three-dimensional schematic diagram of the outer polishing component of the cylinder according to the present invention; Figure 10 This is a schematic diagram of the process steps of the present invention.

[0021] The components include: 1. Workbench; 2. Magnetic mounting base; 3. Translation assembly; 301. Side plate; 302. Double-ended lead screw; 303. Drive motor one; 304. Guide rod; 305. Moving plate; 306. Through slot; 4. Chamfering assembly; 401. Drive motor II; 402. Transmission gear; 403. Rotating component; 4031. Rotating ring plate; 4032. Gear ring; 4033. Connecting rod; 4034. Arc-shaped chamfered workpiece; 5. Inner wall polishing assembly; 501. Electric push rod one; 502. Connecting plate; 503. Inner support assembly; 5031. Single-headed lead screw; 5032. Outer sleeve; 5033. Force transmission rod one; 5034. Force transmission rod two; 5035. Movable sleeve; 5036. Movable seat; 5037. Drive motor three; 504. Polishing plate one; 6. Hole-opening assembly; 601. Electric actuator 2; 602. Drive motor 4; 603. Drill bit; 7. Outer wall polishing assembly; 701. Top plate; 702. Electric push rod three; 703. Polishing plate two; 704. Telescopic limit rod. Detailed Implementation

[0022] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] Please see the appendix Figure 1 - Appendix Figure 10 This invention provides a metal parts processing device for interlocking children's toys, including a workbench 1. A magnetic fixing seat 2 for fixing a cylindrical workpiece is provided on the top of the workbench 1. Translation components 3 are symmetrically arranged on opposite sides of the magnetic fixing seat 2. Each translation component 3 has a chamfering component 4 and an inner wall polishing component 5 sequentially installed along a direction away from or near the magnetic fixing seat 2. The inner wall polishing component 5 includes two sets of electric push rods 501 fixedly installed on the outside of the chamfering component 4, and fixedly connected to the two sets of electric push rods 501. The rod 501 has a connecting plate 502 at its telescopic end, an inner support assembly 503 installed on the outside of the connecting plate 502, and a polishing plate 504 installed on the outside of the inner support assembly 503. The inner support assembly 503 extends into the interior of the cylindrical workpiece under the drive of the electric push rod 501, and drives the polishing plate 504 to abut against the inner wall of the cylindrical workpiece. The inner wall polishing assembly 5 is also provided with an opening assembly 6, which is installed on the outside of the inner support assembly 503 and is used to drill holes in the circumferential wall of the cylindrical workpiece.

[0024] Specifically, the cylindrical workpiece is placed above the magnetic fixing seat 2, the translation component 3 is activated, and the two translation components 3 simultaneously drive the chamfering component 4 to move towards the workpiece, so that the chamfering component 4 contacts and aligns with the end of the workpiece. Then the magnetic fixing seat 2 is energized to attract and fix the workpiece. Next, the chamfering component 4 is activated, and the chamfering component 4 rotates and cooperates with the feed motion of the translation component 3 to chamfer the edge of the workpiece. After the chamfering is completed, the translation component 3 continues to drive the two chamfering components 4 on both sides to move towards the workpiece, so that the chamfering components 4 are in close contact with the end of the workpiece, clamping and fixing the workpiece. Then the magnetic fixing seat 2 is de-energized and releases the workpiece. Then the electric push rod 501 extends and pushes the connecting plate 502 and the inner support component 503 into the workpiece. The hole opening component 6 is activated and aligned with the position to be drilled on the inner wall of the workpiece. With the support and cooperation of the inner support component 503, the drilling of the circumferential wall of the workpiece is completed. After drilling is completed, the hole-opening component 6 is reset and withdrawn. The inner support component 503 continues to expand outward so that the polishing plate 504 is attached to the inner wall of the workpiece. At the same time, the polishing plate 703 in the outer wall polishing component 7 is attached to the outer wall of the workpiece. Then, the chamfering component 4 drives the workpiece held by it to rotate around its own axis. The polishing plate 504 and the polishing plate 703 perform synchronous circumferential grinding and polishing on the inner and outer walls of the workpiece, respectively. After processing is completed, each component is reset in sequence, the processed workpiece is removed, and the next work cycle can begin. Preferably, this equipment can also be used with an external robotic arm to automatically load and unload workpieces, further improving the automation level and production efficiency of the equipment.

[0025] Please see the appendix Figure 2 - Appendix Figure 4 The translation component 3 includes side plates 301 fixedly connected to the top two sides of the worktable 1. A double-ended lead screw 302 is rotatably connected between the two side plates 301 via bearings. A drive motor 303 is fixedly installed on the outer side of one side plate 301. The output end of the drive motor 303 is fixedly connected to one end of the double-ended lead screw 302. A guide rod 304 is also fixedly connected between the two side plates 301. The threads on both sides of the double-ended lead screw 302 are in opposite directions. A moving plate 305 is threadedly connected to each opposite side of the double-ended lead screw 302. The chamfering assembly 4 includes a second drive motor 401 fixedly installed on the top of the movable plate 305. The output end of the second drive motor 401 is fixedly connected to a transmission gear 402. A through groove 306 is provided on the outer side of the movable plate 305. A rotating component 403 is slidably connected in the through groove 306. An arc-shaped chamfered workpiece 4034 is adapted to the side wall of the cylindrical workpiece. The rotating component 403 includes a rotating ring plate 4031 slidably connected to the movable plate 305. A gear ring 4032 is fixedly connected to the outer side of the rotating ring plate 4031. The gear ring 4032 is meshed with the transmission gear 402. The arc-shaped chamfered workpiece 4034 is fixedly connected to the side of the rotating ring plate 4031 near the cylindrical workpiece through several connecting rods 4033. The arc-shaped chamfered workpiece 4034 is used to chamfer the side of the cylindrical workpiece.

[0026] Specifically, when the drive motor 303 is started, the double-ended lead screw 302 rotates, and the reverse threads on both sides drive the moving plates 305 to slide synchronously towards or away from each other under the guidance of the guide rod 304, thereby driving the chamfering assembly 4 to move as a whole. When the moving plates 305 approach each other, the arc-shaped chamfered workpiece 4034 contacts the side walls at both ends of the workpiece. The magnetic fixing seat 2 is energized to attract the workpiece and achieve axial centering and positioning. Then, the second drive motor 401 is started. The transmission gear 402 drives the rotating ring plate 4031 to rotate in the through groove 306 through the gear ring 4032. Then, the arc-shaped chamfered workpiece 4034 is rotated through the connecting rod 4033, so that the arc-shaped chamfered workpiece 4034 rotates to grind the side edges of the workpiece. At the same time, the translation component 3 slowly feeds to achieve chamfering of the side edges of the workpiece. After the chamfering is completed, the second drive motor 401 stops, and the first drive motor 303 drives the two moving plates 305 to move further towards each other, so that the arc-shaped chamfered workpiece 4034 is in close contact with the end faces at both ends of the workpiece, and the workpiece is firmly clamped between the two chamfering components 4. After that, the magnetic fixing seat 2 is de-energized and releases the workpiece. The workpiece can rotate together with the arc-shaped chamfered workpiece 4034 while it is clamped. When unloading is required, the drive motor 303 rotates in the opposite direction, the two moving plates 305 move away from each other, and the arc-shaped chamfered workpiece 4034 releases the workpiece.

[0027] Example 3 Please see the appendix Figure 5 - Appendix Figure 7 The inner support assembly 503 includes a single-ended lead screw 5031 rotatably connected to the outside of the connecting plate 502 via bearings. An outer sleeve 5032 is fitted over the single-ended lead screw 5031 and is fixedly connected to the connecting plate 502. Several sets of first force transmission rods 5033 are equidistantly arranged on the outer circumference of the outer sleeve 5032, and are hinged to the outer sleeve 5032. A movable sleeve 5035 is threaded onto the outer side of the single-ended lead screw 5031. Several second force transmission rods 5034 are equidistantly arranged on the outer circumference of the movable sleeve 5035. Hinged to the movable sleeve 5035, the first force transmission rod 5033 and the second force transmission rod 5034 are rotatably connected in the middle by a pin. The movable seat 5036 is hinged to the side of the first force transmission rod 5033 and the second force transmission rod 5034 away from the single-headed lead screw 5031. The third drive motor 5037 is fixedly installed on the other side of the connecting plate 502. The output end of the third drive motor 5037 is fixedly connected to one end of the single-headed lead screw 5031. The first polishing plate 504 is fixedly installed on the outside of the movable seat 5036. The two sets of electric push rods 501 are fixedly installed on the diagonally outside of the moving plate 305.

[0028] Specifically, after the chamfering assembly 4 completes the chamfering and clamps and fixes the workpiece, the two sets of electric push rods 501 are activated. Since they are fixedly installed on the opposite outer side of the moving plate 305, the two sets of electric push rods 501 extend synchronously, pushing the connecting plate 502 to move closer to the workpiece. The connecting plate 502 drives the entire inner support assembly 503 to pass through the end opening of the workpiece and extend into the internal cavity of the cylindrical workpiece, so that the polishing plate 504 and the opening assembly 6 reach the processing position of the inner wall of the workpiece. When switching to the inner wall polishing state is required, drive motor 3 (5037) is started. The output end of drive motor 3 (5037) drives the single-head lead screw 5031 to rotate. Since the outer sleeve 5032 is fixedly connected to the connecting plate 502 and remains stationary, the movable sleeve 5035 is threadedly connected to the single-head lead screw 5031. Under the action of the threaded drive, the movable sleeve 5035 moves along the axial direction of the single-head lead screw 5031. The first force transmission rod 5033 is hinged to the outer sleeve 5032, and the second force transmission rod 5034 is hinged to the movable sleeve 5035. The first force transmission rod 5033 and the second force transmission rod 5034 cross each other in the middle by a pin. The rotating connection forms a scissor-type linkage mechanism. When the movable sleeve 5035 moves towards the connecting plate 502, the included angle between the first force transmission rod 5033 and the second force transmission rod 5034 decreases. The movable seat 5036, which is hinged at the ends of the two, expands outward in the radial direction, driving the polishing plate 504 fixed on the outside of the movable seat 5036 to move outward until the polishing plate 504 is tightly attached to the inner wall surface of the workpiece. At this time, the movable seat 5036 stops moving to the limit position, and the polishing plate 504 forms a stable contact and pressing state with the inner wall of the workpiece, thereby polishing the inner wall of the rotating workpiece. When the workpiece needs to be removed, the drive motor 5037 rotates in the opposite direction, the movable sleeve 5035 moves away from the connecting plate 502 along the single-head screw 5031, the angle between the first force transmission rod 5033 and the second force transmission rod 5034 increases, the movable seat 5036 retracts radially inward, driving the polishing plate 504 to detach from the inner wall of the workpiece, and then the electric push rod 501 retracts, pulling the inner support assembly 503 out of the workpiece and resetting it.

[0029] Please see the appendix Figure 8 The opening assembly 6 includes an electric push rod 601 that is movably connected to the outside of the movable seat 5036 via a pin. The telescopic end of the electric push rod 601 is hinged to the housing of the drive motor 602. The output end of the drive motor 602 is fixedly connected to a drill bit 603 via a flange.

[0030] Specifically, after the inner support assembly 503 extends into the workpiece, the electric push rod 601 can be activated, its telescopic end extending and pushing the drive motor 602 to rotate around the pin shaft, so that the drill bit 603 gradually approaches the inner wall of the workpiece to be drilled. After the drill bit 603 is aligned with the target position, the drive motor 602 is activated to drive the drill bit 603 to rotate at high speed. Through the cooperation of the electric push rod 501 and the inner support assembly 503, the drill bit 603 rotates to cut the workpiece wall thickness until it penetrates to form a through hole. After drilling is completed, the drive motor 602 stops rotating, the inner support assembly 503 drives the hole opening assembly 6 away from the inner wall of the workpiece, and the electric push rod 601 retracts to drive the drill bit 603 out of the workpiece and return to the standby position. If multiple holes need to be processed, the above steps are repeated after the chamfering assembly 4 drives the workpiece to rotate by a preset angle.

[0031] Please see the appendix Figure 9 The top of the workbench 1 also includes an outer wall polishing assembly 7; wherein, the outer wall polishing assembly 7 includes a top plate 701 fixedly connected to the top of the workbench 1, an electric push rod 702 is fixedly installed on the outer side of the top plate 701, a polishing plate 703 is fixedly connected to the extended end of the electric push rod 702, and two sets of telescopic limiting rods 704 are fixedly connected between the polishing plate 703 and the top plate 701.

[0032] Specifically, once the polishing plate 504 in the inner support assembly 503 has been in contact with the inner wall of the workpiece, the electric push rod 702 is activated. The extended end of the electric push rod 702 extends and pushes the polishing plate 703 to move closer to the workpiece until the arc-shaped working surface of the polishing plate 703 is in close contact with the outer wall surface of the workpiece. During this process, two sets of telescopic limiting rods 704 extend synchronously with the movement of the polishing plate 703 to guide and limit the movement direction of the polishing plate 703, ensuring that the polishing plate 703 always moves in a direction perpendicular to the axis of the workpiece, so that the contact pressure between the polishing plate 703 and the outer wall of the workpiece is uniform. When the chamfering component 4 drives the workpiece to rotate around its own axis, the polishing plate 703 remains stationary. Its arc-shaped working surface generates relative sliding friction with the outer wall of the rotating workpiece, performing circumferential grinding and polishing on the outer wall of the workpiece. The curvature of the arc-shaped working surface of the polishing plate 703 matches the curvature of the outer wall of the workpiece, ensuring that it always maintains surface contact with the outer wall of the workpiece during the workpiece rotation process, thus ensuring the uniformity of polishing.

[0033] After the inner and outer walls are polished simultaneously, the electric push rod 702 retracts, driving the polishing plate 703 to move away from the workpiece and return to the standby position, providing clearance for the unloading of the workpiece; Workflow: First, place the cylindrical workpiece to be processed on the magnetic fixing seat 2 on the top of the worktable 1. Start the drive motor 303. The drive motor 303 drives the double-ended lead screw 302 to rotate. Since the threads on both sides of the double-ended lead screw 302 are opposite, they are threadedly connected to the moving plates 305 on both sides respectively. With the guidance of the guide rod 304, the moving plates 305 on both sides slide synchronously towards each other, driving the chamfering assembly 4 to move towards the workpiece until the arc-shaped chamfered workpieces 4034 on both sides contact and align with the side walls at both ends of the workpiece, thus completing the axial centering and positioning of the workpiece. Then, the magnetic fixing seat 2 is energized to attract and fix the workpiece. Next, the drive motor 401 is started. The drive motor 401 drives the rotating part 403 to rotate around its own axis in the through groove 306 through the meshing of the transmission gear 402 and the gear ring 4032. The arc-shaped chamfered workpiece 4034 rotates accordingly. At the same time, the translation component 3 continues to feed at a slow speed, so that the arc-shaped chamfered workpiece 4034 moves along the workpiece axis and performs rotary grinding and chamfering on the side edges of the workpiece. After the chamfering is completed, drive motor 2 401 stops, and drive motor 1 303 continues to drive the two moving plates 305 to move further towards each other, so that the arc-shaped chamfered workpiece 4034 is in close contact with the end faces of the workpiece, and the workpiece is firmly clamped between the two chamfering components 4. At this time, the magnetic fixing seat 2 is de-energized and releases the workpiece. The clamping force of the workpiece is completely borne by the two arc-shaped chamfered workpieces 4034, and the workpiece can rotate together with the rotating part 403. Subsequently, the two sets of electric push rods 501 extend synchronously, pushing the connecting plate 502 and the entire inner support assembly 503 through the end opening of the workpiece and into the internal cavity of the cylindrical workpiece, so that the polishing plate 504 and the hole-opening assembly 6 reach the processing position of the inner wall of the workpiece. The electric push rod 601 is started, and its telescopic end extends and pushes the drive motor 602 to rotate around the pin shaft, so that the drill bit 603 is aligned with the position to be drilled on the inner wall of the workpiece. The drive motor 602 is started to drive the drill bit 603 to rotate at high speed. At the same time, the electric push rod 601 continues to extend to push the drill bit 603 to feed and cooperate with the electric push rod 501 and the inner support assembly 503 to make the drill bit 603 rotate and cut the workpiece wall thickness until it penetrates to form a through hole. After the drilling is completed, the drive motor 602 stops rotating, the inner support assembly 503 drives the hole-opening assembly 6 away from the inner wall of the workpiece, and the electric push rod 601 retracts to drive the drill bit 603 to disengage from the workpiece and reset. After drilling is completed, drive motor 3 5037 is started again. Drive motor 3 5037 drives single-head lead screw 5031 to rotate. Movable sleeve 5035 moves axially along single-head lead screw 5031. Through the scissor linkage mechanism composed of force transmission rod 1 5033 and force transmission rod 2 5034, the movable seat 5036 is pushed to expand radially outward, which drives the polishing plate 1 504 fixed on the outside of the movable seat 5036 to move outward until the polishing plate 1 504 is tightly attached to the inner wall surface of the workpiece. At the same time, electric push rod 3 702 is started to push polishing plate 2 703 to move towards the workpiece. Two sets of telescopic limit rods 704 extend synchronously to guide and limit, so that the arc-shaped working surface of polishing plate 2 703 is tightly attached to the outer wall surface of the workpiece. At this time, both inner and outer polishing plates are in place, and the workpiece is clamped between the two chamfering components 4 and is in a rotatable state. Finally, drive motor 401 is restarted, and the rotating part 403 is driven to rotate through the meshing of transmission gear 402 and gear ring 4032. The workpiece rotates around its own axis under the clamping drive of the two arc-shaped chamfered workpieces 4034. Polishing plate 504 and polishing plate 703 remain stationary, and synchronous circumferential grinding and polishing are performed on the inner and outer walls of the rotating workpiece respectively. After the inner and outer surfaces are simultaneously finished, each workpiece is reset. Finally, the operator removes the finished workpiece from the magnetic fixing seat 2, thus completing the complete work cycle.

[0034] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A processing device for metal parts of a modular children's toy, comprising a workbench (1), characterized in that: The top of the workbench (1) is provided with a magnetic fixing seat (2) for fixing a cylindrical workpiece. The magnetic fixing seat (2) is symmetrically provided with translation components (3) on opposite sides. Each translation component (3) is sequentially equipped with a chamfering component (4) and an inner wall polishing component (5) in a direction away from or close to the magnetic fixing seat (2). The inner wall polishing assembly (5) includes two sets of electric push rods (501) fixedly installed on the outside of the chamfering assembly (4), a connecting plate (502) fixedly connected to the telescopic ends of the two sets of electric push rods (501), an inner support assembly (503) installed on the outside of the connecting plate (502), and a polishing plate (504) disposed on the outside of the inner support assembly (503). The inner support assembly (503) extends into the interior of the cylindrical workpiece under the drive of the electric push rods (501) and drives the polishing plate (504) to abut against the inner wall of the cylindrical workpiece. The inner wall polishing assembly (5) is also provided with an opening assembly (6), which is installed on the outside of the inner support assembly (503) and is used to drill holes in the circumferential wall of the cylindrical workpiece.

2. The metal component processing device for splicing children's toys according to claim 1, characterized in that, The translation component (3) includes side plates (301) fixedly connected to the top of the worktable (1) on both sides. A double-ended lead screw (302) is rotatably connected between the two side plates (301) via bearings. A drive motor (303) is fixedly installed on the outer side of one side plate (301). The output end of the drive motor (303) is fixedly connected to one end of the double-ended lead screw (302). A guide rod (304) is also fixedly connected between the two side plates (301). The threads on both sides of the double-ended lead screw (302) are in opposite directions. A moving plate (305) is threaded to each opposite side of the double-ended lead screw (302).

3. The metal component processing device for splicing children's toys according to claim 2, characterized in that, The chamfering assembly (4) includes a second drive motor (401) fixedly installed on the top of the movable plate (305). The output end of the second drive motor (401) is fixedly connected to a transmission gear (402). A through groove (306) is provided on the outer side of the movable plate (305). A rotating component (403) is slidably connected in the through groove (306).

4. The metal component processing device for splicing children's toys according to claim 3, characterized in that, The rotating component (403) includes a rotating ring plate (4031) slidably connected to the moving plate (305). A gear ring (4032) is fixedly connected to the outer side of the rotating ring plate (4031). The gear ring (4032) meshes with the transmission gear (402). An arc-shaped chamfered workpiece (4034) is fixedly connected to the side of the rotating ring plate (4031) near the cylindrical workpiece through several connecting rods (4033). The arc-shaped chamfered workpiece (4034) is used to chamfer the side of the cylindrical workpiece.

5. The metal component processing device for splicing children's toys according to claim 1, characterized in that, The inner support assembly (503) includes a single-ended lead screw (5031) rotatably connected to the outside of the connecting plate (502) via a bearing. An outer sleeve (5032) is fitted around the outside of the single-ended lead screw (5031). The outer sleeve (5032) is fixedly connected to the connecting plate (502). Several sets of force transmission rods (5033) are equidistantly arranged on the outer circumference of the outer sleeve (5032). The force transmission rods (5033) are hinged to the outer sleeve (5032). A movable sleeve (5035) is threaded onto the outside of the single-ended lead screw (5031). Several force transmission rods (5034) are equidistantly arranged on the outer circumference. The force transmission rods (5034) are hinged to the movable sleeve (5035). The middle parts of the force transmission rods (5033) and (5034) are rotatably connected by a pin. The side of the force transmission rods (5033) and (5034) away from the single-ended lead screw (5031) is hinged to a movable seat (5036). The other side of the connecting plate (502) is fixedly installed with a drive motor (5037). The output end of the drive motor (5037) is fixedly connected to one end of the single-ended lead screw (5031).

6. The metal component processing device for splicing children's toys according to claim 5, characterized in that, The polishing plate (504) is fixedly installed on the outside of the movable seat (5036).

7. The assembly-type children's toy metal component processing device according to claim 1, characterized in that, The opening assembly (6) includes an electric push rod two (601) that is movably connected to the outside of the movable seat (5036) via a pin. The telescopic end of the electric push rod two (601) is hinged to the housing of the drive motor four (602). The output end of the drive motor four (602) is fixedly connected to a drill bit (603) via a flange.

8. The metal component processing device for splicing children's toys according to claim 1, characterized in that, The top of the workbench (1) also includes an outer wall polishing assembly (7). The outer wall polishing assembly (7) includes a top plate (701) fixedly connected to the top of the workbench (1), an electric push rod three (702) fixedly installed on the outer side of the top plate (701), a polishing plate two (703) fixedly connected to the extension end of the electric push rod three (702), and two sets of telescopic limiting rods (704) fixedly connected between the polishing plate two (703) and the top plate (701).

9. A processing device for metal parts of splicing children's toys according to claim 2, characterized in that, The two sets of electric push rods (501) are fixedly installed on the opposite outer corners of the movable plate (305).

10. A metal parts processing device for splicing children's toys according to claim 4, characterized in that, The arc-shaped chamfered workpiece (4034) is adapted to the side wall of the cylindrical workpiece.

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