Upper and lower hanging tool system for anodizing process workpiece

Abstract

The invention relates to the field of metal part production anodic oxidation process equipment, in particular to an anodic oxidation process workpiece loading and unloading hanging tool system. The system comprises hanging tools, an assembly table, a workpiece mechanical arm and a hanging tool mechanical arm. A supporting assembly is arranged on the hanging tool framework and used for fixing a workpiece. The supporting assembly comprises a front supporting mechanism for supporting the front portion of the workpiece, a rear supporting mechanism for supporting the rear portion of the workpiece and side supporting mechanisms for supporting the left side and the right side of the workpiece. The assembling table is provided with a rear driving mechanism for driving the rear supporting mechanism and a side driving mechanism for driving the side supporting mechanism. The workpiece manipulator is used for feeding the workpiece to the assembly table or discharging the workpiece from the assembly table; and the hanger manipulator is used for feeding hangers to the assembly table or discharging the hangers from the assembly table. According to the hanger, a workpiece is fixed by adopting a simpler and more reliable metal elastic sheet, and meanwhile, a special assembly table is designed and can be matched with a manipulator to fully automatically finish the up-and-down hanging operation of the workpiece.

Description

Technical Field

[0001] The invention relates to the field of anodizing process equipment for metal parts production, and in particular to an upper and lower hanger system for anodizing process workpieces. Background Art

[0002] Anodized metal casings are widely used in mobile phones, tablet computers, laptops and other electronic consumer products. Metal casings treated with anodizing can improve corrosion resistance. The oxide film formed by oxidation can effectively protect the metal substrate (usually aluminum or aluminum alloy) from moisture, sweat, oxygen in the air and other chemicals, greatly extending the service life of the casing, and can also enhance the hardness of the surface and improve wear resistance. The oxide film has a high hardness, which can prevent the casing from being worn due to friction, scratches, etc. during daily use, maintain the appearance quality of electronic products, and can improve the surface texture of the metal casing, facilitate dyeing, and improve aesthetics. Oxidation treatment can give the casing a uniform, matte or mirror effect, and can also present a variety of colors through coloring technology, enhancing the visual appeal and brand recognition of the product.

[0003] The production of metal workpieces using anodizing process includes the following steps: unloading, CNC processing, pretreatment (cleaning, sandblasting or brushing), workpiece hanger, anodizing stage, post-treatment (coloring, sealing, cleaning and drying), workpiece hanger, packaging and packaging. The upper and lower hangers of the workpiece are important steps in the anodizing process. In the anodizing stage, the workpiece and the hanger need to be immersed in the anodizing tank together and electricity is applied to accelerate the oxidation of the workpiece surface.

[0004] The metal shell parts of electronic products have folded edges that bend backwards around them, and their cross-section is C-shaped, which is called edging parts in the industry. The outer surface and side surfaces of edging parts such as electronic product shells are both appearance surfaces. The contact points between the hanger and the workpiece will produce contact marks during the anodizing process. For edging parts, the hanger needs to fix the workpiece from its inner non-appearance surface.

[0005] In the anodizing process of general parts, commonly used hangers include disc clamps, frame clamps, etc. This type of hanger has the advantages of easy clamping and firm fixation. However, the workpiece needs to be clamped and fixed from both ends or the outside of the workpiece, so contact marks will be left on the appearance surface of the hemming part. Workpieces with high requirements for appearance effects usually cannot use this type of hanger. There are also some, such as needle hangers, which require holes to be punched on the workpiece as hanger fixing points. Hook-type hangers do not have a high clamping force on hemming parts.

[0006] In the prior art, there are also special clamp-type hangers specially designed for edging parts such as electronic product shells. However, this type of hanger is often designed with a complex motion mechanism, including several kinematic pairs. Because in the anodizing process, the hanger and the workpiece are immersed in an oxidation tank with a strong acid and alkali environment, and it is necessary to turn on the power to accelerate the oxidation of the workpiece. The anodizing process is also very corrosive to the hanger itself, which can easily cause the parts of the motion mechanism on the hanger to be oxidized and change their structure, resulting in the failure of the kinematic pairs. In addition, the overly complex design of the hanger will also make it too difficult to put the upper and lower hangers on, and it is impossible to use fully automatic mechanical equipment to carry out the upper and lower hanger operations of the workpiece. Summary of the invention

[0007] In view of the above-mentioned deficiencies or defects in the prior art, the present invention provides an upper and lower hanging system for workpieces in anodizing process, which can automatically hang the workpieces up and down, and the hanger fixes the workpieces from the non-exterior surface of the workpiece without leaving any contact marks on the exterior surface of the workpiece.

[0008] In order to achieve the above-mentioned object, the present invention provides an upper and lower hanger system for workpieces in an anodizing process, comprising a hanger, an assembly table, a workpiece manipulator and a hanger manipulator;

[0009] The hanger comprises a frame and a plurality of supporting components arranged on the frame; the supporting components are used to fix the workpiece, and include a front supporting mechanism, a rear supporting mechanism, and a side supporting mechanism for supporting the front, rear, left and right sides of the workpiece respectively;

[0010] The front support mechanism includes a plurality of front hooks; the front hooks are fixed on the frame and can hook the inner side of the front folded edge of the workpiece;

[0011] The rear support structure includes a rear spring sheet and a rear hook; the fixed end of the rear spring sheet is fixed to the frame, and the free end is installed with the rear hook; the rear hook can hook the inner side of the rear folded edge of the workpiece, and the rear spring sheet supports the rear hook;

[0012] The side support structure includes a side spring sheet and a side hook; the side spring sheets include two, which are arranged on the left and right sides of the frame, the fixed ends of the side spring sheets are fixed on the frame, and the free ends are installed with the side hooks; the side hooks can hook the inner sides of the folded edges on the left and right sides of the workpiece, and the side spring sheets support the side hooks outwards;

[0013] The assembly table includes a frame, a plurality of driving components, and a locking component; the frame is provided with an assembly station, and the locking component can fix the hanger to the assembly station; the driving component includes a rear driving mechanism and a side driving mechanism; the rear driving mechanism and the side driving mechanism can respectively support the free end of the rear spring sheet and the free end of the side spring sheet, so that the rear spring sheet and the side spring sheet are elastically deformed;

[0014] A workpiece manipulator, used to load the workpiece onto the assembly table or unload the workpiece from the assembly table;

[0015] The hanger manipulator is used to load the hanger onto the assembly table or unload the hanger from the assembly table.

[0016] In some embodiments, the two driving components are a cooperative group, and the two active components of the same cooperative group are respectively arranged on the assembly table frames on the left and right sides of the hanger;

[0017] A plurality of supporting components are arranged at intervals along the frame of the hanger; a plurality of coordinating groups are arranged at intervals on the frame along the extending direction of the hanger, and the coordinating groups correspond to the supporting components one by one.

[0018] In some embodiments, the free end of the rear spring sheet is provided with a driving portion cooperating with the rear supporting mechanism, and the driving portion extends to the left or right side of the frame to the outside of the projection range of the workpiece;

[0019] The rear driving mechanism comprises a rear driving arm and a driver, the driver drives the rear driving arm to approach or move away from the hanger, the working end of the rear driving arm is aligned with the rear spring sheet, and the working end of the rear driving arm has an inclined working surface;

[0020] When the rear driving arm moves toward the hanger, the working part of the rear spring sheet contacts the working surface of the driving arm and slides on the inclined working surface, so that the free end of the rear spring sheet elastically deforms forward and the rear hook moves away from the edge of the workpiece toward the inside of the workpiece.

[0021] In some embodiments, the free end of the side spring piece has a driving portion that cooperates with the side support structure, and the driving portion extends to the left or right side of the frame and outside the projection range of the workpiece;

[0022] The side driving mechanism comprises a side driving arm and a driver, wherein the driver is used to drive the side driving arm to approach or move away from the hanger, and the working end of the side driving arm is aligned with the side spring sheet; the working end of the side driving arm is a fork-shaped structure;

[0023] When the side driving arm moves toward the hanger, the driving part of the side spring piece is inserted into the fork-shaped structure of the side driving arm, and the side driving arm pushes the free end of the side spring piece inward, causing the side spring piece to elastically deform, and the side hook moves away from the edge of the workpiece toward the inside of the workpiece.

[0024] In some embodiments, the driving assembly includes a base, which is fixed on the frame and the left and right sides of the combined workstation; a first track extending in the left and right directions is provided on the base, a mounting seat is slidably provided on the first track, a first driver is provided between the mounting seat and the base, and the mounting seat slides on the first track; a side driving arm and a rear driving arm are fixedly installed on the mounting seat,

[0025] The working end of the side driving arm is aligned with the side spring sheet, and the working end of the side driving arm is a fork-shaped structure;

[0026] The working end of the rear driving arm is aligned with the rear spring sheet, and the working end of the rear driving arm is provided with an inclined working surface.

[0027] In some embodiments, a second track is fixedly mounted on the mounting seat, the second track is parallel to the first track and extends toward the direction where the assembly station is located; a support arm is slidably arranged on the second track, and a second driver is arranged between the support arm and the mounting seat to drive the support arm to slide on the second track;

[0028] The working end of the support arm is provided with a bayonet, and when the support arm moves toward the direction of approaching the hanger, the bayonet on the support arm clamps the frame of the hanger.

[0029] In some embodiments, the support assembly is arranged on the front side of the frame, and a secondary support assembly having the same structure as the support assembly is symmetrically arranged on the back side of the frame;

[0030] A flip assembly is arranged on the assembly station on the assembly table, and the flip assembly includes a flip bracket and a flip motor. The flip assembly is rotatably mounted on the frame, and the flip motor is fixed on the frame, and its output shaft is connected to the flip bracket and drives the flip bracket to rotate; the rotating shaft of the flip bracket is arranged along the extension direction of the hanger; the flip bracket is provided with a locking assembly for fixing the hanger on the flip bracket.

[0031] In some embodiments, the execution end of the hanger manipulator is equipped with a hanger clamping tool; the hanger manipulator can transfer an empty hanger to the assembly station and take a full hanger away from the assembly station.

[0032] In some embodiments, the execution end of the workpiece manipulator is provided with a workpiece clamping tool;

[0033] The workpiece manipulator is divided into a workpiece loading manipulator and a workpiece unloading manipulator; the workpiece loading manipulator is used to transfer the workpiece to the support assembly of the hanger on the combination station; the workpiece unloading manipulator is used to take the workpiece away from the support assembly of the hanger on the combination station.

[0034] In some embodiments, the workpiece is an edge-binding piece, the edges of the workpiece are provided with inwardly bent edges, and the cross section of the workpiece is C-shaped.

[0035] The application of the above technical solution of the present invention has the following effects:

[0036] The present invention omits the complicated motion mechanism on the hanger and realizes the effect of fixing the workpiece from the inner side of the folded edge of the workpiece. The hanger adopts simpler and more reliable metal springs to fix the workpiece, and a special assembly table is designed to drive these metal springs to complete the workpiece hanging operation.

[0037] First, the present invention designs a hanger, which fixes the workpiece by means of a front hook, a rear hook and a side hook. The front hook, the rear hook and the side hook are all buckled on the non-appearance surface of the inner side of the folded edge of the workpiece, and no release marks are left on the appearance surface of the workpiece. The front hook, the rear hook and the side hook buckle the workpiece from all sides, and the connection is firm and stable, so that the workpiece is not easy to fall off during the movement of the hanger.

[0038] The side spring pieces connected to the side hooks and the rear spring pieces connected to the rear hooks are both elastic metal sheets, which can press the hooks onto the workpieces, and can keep the front, rear and side hooks in contact with the workpieces at all times during the oxidation process, thereby maintaining stable power supply to the workpieces.

[0039] During anodizing operation, the front hook is on top and the rear hook is on the bottom. The rear hook supports the workpiece downward. The elastic coefficient of the rear elastic member is k1, and its elastic deformation when the workpiece is fixed is l. The weight of the workpiece itself is m, so the force on the front hook is f=k1l+mg. The front hook is mainly used to bear the weight of the workpiece, so the front hook is a fixed hook that is directly fixed to the frame. The front hook on the top is a fixed hook, and the rear hook on the bottom is installed on the frame through the lower spring sheet. This can effectively increase the support force of the front hook on the workpiece, prevent the workpiece from falling, and keep the workpiece structure stable.

[0040] The entire upper and lower hanger system matched with the hanger of the present invention also includes an assembly table, a workpiece manipulator and a hanger manipulator. A locking assembly is provided on the assembly table, and the locking assembly fixes the workpiece on the assembly table. A driving assembly is also provided, and the driving assembly can cooperate with the side spring pieces and the rear spring pieces of the hanger. After the side spring pieces and the rear spring pieces are pushed inward, the side hooks and the rear hooks will be separated from the workpiece. The workpiece cannot be completely restrained by the upper hook alone, so it will not hinder the loading and unloading of the workpiece.

[0041] During the upper or lower hanging operation, after the side spring pieces and the rear spring pieces are deformed, the side hooks and the rear hooks move inward. On the one hand, the hooks will not interfere with the folded edges of the workpiece, affecting the upper and lower hanging operations. On the other hand, the hooks will not intersect with the appearance surface of the workpiece, avoiding scratches between the hooks and the appearance surface during the upper and lower hanging operations.

[0042] The workpiece manipulator loads the workpiece onto the assembly table or unloads the workpiece from the assembly table, and the hanger manipulator loads the hanger onto the assembly table or unloads the hanger from the assembly table. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 It is a general schematic diagram of the upper and lower hanger system of the present invention;

[0044] Figure 2 It is a schematic diagram of the assembly table and the hanger manipulator part;

[0045] Figure 3 This is a schematic diagram of the hanger on the assembly table when loading and unloading materials;

[0046] Figure 4 It is a schematic diagram of the coordination between the support assembly and the drive assembly of the hanger;

[0047] Figure 5 It is a stereogram of the drive assembly itself;

[0048] Figure 6 It is a three-dimensional picture of the hanger and the workpiece; wherein the rear spring sheet and the side spring sheet are in a fully expanded state;

[0049] Figure 7 This is a schematic diagram of the back side of a typical workpiece;

[0050] Figure 8 It is a schematic diagram of the cross-sectional structure of the workpiece.

[0051] Description of Reference Numerals

[0052] 1- Hanging fixture;

[0053] 1a-skeleton;

[0054] 1b-support assembly, 1b1-front support mechanism, 1b1a-front hook; 1b2-rear support mechanism, 1b2a-rear spring sheet, 1b2b-rear hook; 1b3 side support mechanism, 1b3a-side spring sheet, 1b3b-side hook;

[0055] 2-Assembly table;

[0056] 2a- rack;

[0057] 2b-driving assembly, 2b1-base, 2b2-first track, 2b3-mounting seat, 2b4-first driver, 2b5-rear driving arm, 2b6-side driving arm, 2b7-second track, 2b8-support arm, 2b9-second driver;

[0058] 2c-flip assembly, 2c1-flip bracket, 2c2-flip motor, 2c3-locking assembly;

[0059] 2d-combination workstation;

[0060] 3-Workpiece manipulator;

[0061] 4-Hanging manipulator;

[0062] 5-workpiece, 5a-appearance surface, 5b-non-appearance surface, 5c-folding edge;

[0063] 6-Workpiece picking and placing station;

[0064] 7-Hanging pick-up and placement station. DETAILED DESCRIPTION

[0065] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0066] In the present invention, unless otherwise specified, the directional words "front, back, left, right" are used as shown in the figure. Figure 3 As shown, the position close to the top of the hanger 1 is "front" and the position close to the tail of the hanger 1 is "rear"; the two sides of the hanger 1 are "left" and "right" respectively. During the anodizing process, the hanger 1 is hung on the target, at which time the front hook 1b1a on the hanger 1 is on the top and the rear hook 1b2b is on the bottom. For the convenience of expression, this article uniformly adopts the level of assembly process Figure 3 Describe the positional relationship in .

[0067] The present invention provides an anodizing process workpiece upper and lower hanger system, such as Figure 1 As shown, the system includes: a hanger 1, an assembly table 2, a workpiece manipulator 3 and a hanger manipulator 4. The hanger 1 is used to fix the workpiece 5. During the anodizing process, the hanger 1 carries the workpiece 5 through various stations of the anodizing process. The assembly table 2 is used to fix the workpiece 5 to the hanger 1, or to remove the workpiece 5 from the hanger 1. The workpiece manipulator 3 is used to load the workpiece 5 from the workpiece pick-up and placement station 6 to the assembly table 2; or to unload the workpiece 5 from the assembly table 2 to the workpiece pick-up and placement station 6. The hanger manipulator 4 is used to load the hanger 1 from the hanger pick-up and placement station 7 to the assembly table 2; or to unload the hanger 1 from the assembly table 2 to the tool pick-up and placement station.

[0068] The following will introduce several core modules of the upper and lower hanger system for anodizing workpieces.

[0069] Hanger 1:

[0070] The hanger 1 includes a frame 1a and a plurality of support assemblies 1b arranged on the frame 1a. The support assemblies 1b are used to fix the workpiece 5. The support assemblies 1b include a front support mechanism 1b1 supporting the front of the workpiece 5, a rear support mechanism 1b2 supporting the rear of the workpiece 5, and a side support mechanism 1b3 supporting the left and right sides of the workpiece 5.

[0071] Since the working environment of the hanger 1 is very corrosive, the entire hanger 1 is made of titanium alloy. Since the movable parts and kinematic pairs are easily deformed and failed after being corroded, the support assembly 1b of the hanger 1 of the present invention is directly fixed on the frame 1a.

[0072] like Figure 6As shown in the figure, the frame 1a of the hanger 1 is a whole frame structure, and the frame 1a mainly includes: a keel, a main hook, a locking structure and a power strip. The keel is the main body of the frame 1a, and other auxiliary structures are fixed on the keel. Figure 6 In the embodiment, the left and right keels run through the entire hanger 1. The top of the hanger 1 is provided with a main hook, and the main hook at the top hangs the hanger 1 on the target. A power connection sheet is provided on the main hook. When anodizing is performed, the target will be energized, and the current will be transmitted to the entire skeleton 1a through the power connection sheet, and then to the workpiece 5. The hanger 1 has locking structures that cooperate with the locking component 2c3 on the top and bottom. The locking component 2c3 fixes the hanger 1 through the locking structure.

[0073] The support assembly 1b is used to directly connect and fix the workpiece 5, and the support assembly 1b is directly arranged on the frame 1a of the hanger 1. In the present invention, one support assembly 1b can only fix one workpiece 5, so if the hanger 1 needs to carry multiple workpieces 5, multiple support assemblies 1b need to be arranged.

[0074] like Figure 6 and Figure 7 As shown in the figure, the support assembly 1b includes a front support structure for fixing the upper edge of the workpiece 5, a rear support structure for fixing the lower edge of the workpiece 5, and a car support mechanism for fixing the side edges of the left and right sides of the workpiece 5. In this way, the workpiece 5 can be fixed from all sides to keep the workpiece 5 firm and ensure that the workpiece will not fall off the hanger 1 when moving in the oxidation tank or being sprayed and washed.

[0075] The front support mechanism 1b1 includes a plurality of front hooks 1b1a. The front hooks 1b1a are directly fixed on the frame 1a. The front hooks 1b1a can hook the inner side of the front fold 5c of the workpiece 5. A plurality of front hooks 1b1a can be arranged at intervals along the extension direction of the upper edge of the workpiece 5.

[0076] The rear support structure includes a rear spring piece 1b2a and a rear hook 1b2b. The fixed end of the rear spring piece 1b2a is fixed on the frame 1a, and the free end thereof is installed with the rear hook 1b2b. The rear hook 1b2b can hook the inner side of the rear folded edge 5c of the workpiece 5, and the rear spring piece 1b2a supports the rear hook 1b2b. The rear spring piece 1b2a is a metal spring piece made of titanium alloy. One end of the rear spring piece 1b2a is fixed on the frame 1a, and the other end can be elastically deformed, and the rear spring piece 1b2a is required to be able to be elastically deformed in the front-to-back direction. The specific appearance of the rear spring piece 1b2a is not required. The rear hook 1b2b is fixed on the free end of the rear spring piece 1b2a that can be elastically deformed in the front-to-back direction. When the rear spring piece 1b2a is deformed, the rear hook 1b2b can move in the front-to-back direction to complete the action of inserting into the inner side of the lower edge folded edge 5c of the workpiece 5 or the action of detaching from the workpiece 5.

[0077] Structurally, the side support structure is similar to the rear support structure. The side support structure includes a side spring piece 1b3a and a side hook 1b3b. The side spring piece 1b3a includes two left and right sides, which are respectively arranged on the left and right sides of the skeleton 1a. The fixed end of the side spring piece 1b3a is fixed on the skeleton 1a, and the side hook 1b3b is installed on the free end. The side hook 1b3b can hook the inner side of the folded edge 5c on the left and right sides of the workpiece 5, and the side spring piece 1b3a supports the side hook 1b3b outward. The side spring piece 1b3a is also a titanium alloy elastic metal sheet, one end of which is fixed on the skeleton 1a, and the other end is a free end and the free end is fixed with a side hook 1b3b. The side spring piece 1b3a can undergo elastic deformation in the left and right directions. Both the left and right sides of the workpiece 5 need to be supported, so the side support structure is at least symmetrically provided with two groups of side spring pieces 1b3a and side hooks 1b3b.

[0078] In summary, the support structure fixes the workpiece 5 via the front hook 1b1a, the rear hook 1b2b and the side hook 1b3b, and the front hook 1b1a, the rear hook 1b2b and the side hook 1b3b are inserted into the inner side of the folded edge 5c of the workpiece 5. Figure 8 As shown in , usually a workpiece 5 such as a mobile phone or a notebook computer shell has a groove at the edge fold 5c, and the front hook 1b1a, the rear hook 1b2b and the side hook 1b3b are inserted into this groove. If the workpiece 5 does not have a groove at the corresponding position of the aforementioned hook, it is necessary to adjust the position of the hook. If there is no groove for the workpiece 5 to be inserted into the upper edge or the lower edge of the workpiece 5, then it is necessary to modify the design of the workpiece 5, and reserve a groove in advance at the corresponding position of the front hook 1b1a and the rear hook 1b2b. If there is no groove for the workpiece 5 to be inserted into on the side edges on the left and right sides of the workpiece 5, it is not necessary to add a groove on the side of the workpiece 5, and the side hook 1b3b can be directly supported against the inner side of the fold 5c.

[0079] Assembly table 2:

[0080] The assembly table 2 includes a frame 2a, a plurality of drive components 2b and a locking component 2c3. The frame 2a has an assembly station 2d, and the locking component 2c3 can fix the hanger 1 to the assembly station 2d. The drive component 2b includes a rear drive mechanism and a side drive mechanism. The rear drive mechanism can support the free end of the rear spring sheet 1b2a to elastically deform the rear spring sheet 1b2a. The side drive mechanism can support the free end of the side spring sheet 1b3a inwardly to elastically deform the side spring sheet 1b3a.

[0081] like Figure 2 and Figure 3 As shown, the frame 2a is a workbench, and a combination station 2d is reserved in the middle of the upper surface of the frame 2a, and the subsequent workpiece hanging operation is performed at the combination station 2d. The locking component 2c3 is installed at the combination station 2d, and the locking component 2c3 cooperates with the locking structure on the aforementioned hanger 1 to fix the hanger 1 to the assembly table 2.

[0082] Here are some examples of the design of locking components 2c3 and locking structures:

[0083] 1. The locking component 2c3 is a cylinder / hydraulic cylinder, and the execution end of the cylinder / hydraulic cylinder has a conical positioning cone. The locking structure is a positioning hole that cooperates with the positioning cone. The positioning cone is inserted into the positioning hole to position and fix the hanger 1 to the assembly table 2.

[0084] 2. The locking structure includes a trumpet-shaped slot with a larger top and a smaller bottom and a clamping structure. The locking structure includes a positioning block that cooperates with the slot. The positioning block enters the slot and is clamped by the clamping structure.

[0085] The driving component 2b is the core component of the assembly table 2. The driving component 2b cooperates with the supporting component 1b of the hanger 1 to drive the supporting component 1b to detach from the workpiece 5 and fix the workpiece 5. The specific driving component 2b includes a rear driving mechanism that drives the rear spring sheet 1b2a to deform, and a side driving mechanism that drives the side spring sheet 1b3a to deform. In order to prevent interference between the hanger 1 and the workpiece 5 during feeding and unloading, the driving component 2b is arranged on the left and right sides of the assembly station 2d. During the operation of hanging and lowering the workpiece 5, the workpiece 5 is in a horizontal state.

[0086] The rear drive mechanism includes any linear drive. The linear drive drives the actuator (rear drive arm 2b5) to move linearly in a horizontal plane. The actuator supports the free end of the rear spring sheet 1b2a, causing the rear spring sheet 1b2a to deform elastically. The rear spring sheet 1b2a deforms backward, and the rear hook 1b2b moves forward to the inside of the workpiece 5.

[0087] The side drive mechanism is similar to the rear drive mechanism. The side drive mechanism includes a linear drive. The linear drive drives the actuator (side drive arm 2b6) to move linearly in a horizontal plane. The actuator supports the free end of the side spring sheet 1b3a, causing the side spring sheet 1b3a to deform elastically. After the side spring sheet 1b3a is elastically deformed, the side hook 1b3b moves toward the middle to the inside of the workpiece 5.

[0088] Workpiece manipulator 3:

[0089] like Figure 1 As shown in the figure, the workpiece manipulator 3 is an industrial robot, and multiple ones can be set to speed up the loading and unloading speed, and is used to load the workpiece 5 from the workpiece pick-up and placement station 6 to the assembly table 2; or unload the workpiece 5 from the assembly table 2 to the workpiece pick-up and placement station 6. The execution end of the hanger manipulator 4 is equipped with a hanger 1 clamping tool. The hanger manipulator 4 transfers the empty hanger 1 to the assembly station 2d, and takes the full hanger 1 away from the assembly station 2d. The clamping tool of the hanger manipulator 4 is a clamp-shaped clamp, which directly clamps the upper and lower ends of the hanger 1. The main body of the hanger 1 is made of titanium alloy, so it is strong enough.

[0090] Hanger robot 4:

[0091] like Figure 1 As shown in , the hanger manipulator 4 is an industrial robot, and multiple hangers can be provided to speed up the loading and unloading speed. The hanger manipulator 4 is used to load the hanger 1 from the hanger pick-up and placement station 7 to the assembly table 2; or to unload the hanger 1 from the assembly table 2 to the tool pick-up and placement station.

[0092] The execution end of the workpiece manipulator 3 is provided with a workpiece 5 clamping fixture. The workpiece 5 clamping fixture is usually a suction cup fixture to avoid scratching the appearance surface 5a of the workpiece 5. The workpiece manipulator 3 is divided into a workpiece loading manipulator and a workpiece unloading manipulator.

[0093] Artifact 5:

[0094] like Figure 7 and Figure 8 The workpiece 5 targeted by the present invention is a workpiece of the type of hemming part, such as the housing of a mobile phone, a tablet computer, or a laptop computer. The hemming part workpiece 5 has an inwardly bent hem 5c on its periphery, and the cross section of the workpiece 5 is C-shaped.

[0095] How to set multiple support components 1b on the hanger 1:

[0096] Since at least two side spring pieces 1b3a are provided on the left and right sides, the two driving components 2b form a cooperative group. The two driving components 2b of the same cooperative group are respectively arranged on the frames 2a of the assembly table 2 on the left and right sides of the hanger 1.

[0097] In order to avoid mutual interference between the driving components 2b, multiple support components 1b are arranged at intervals along the frame 1a of the hanger 1; multiple cooperative groups are arranged at intervals on the frame 2a along the extension direction of the hanger 1, and the cooperative groups correspond to the support components 1b one by one. Similarly, multiple cooperative groups are also arranged on the frame 2a along the front and rear directions.

[0098] The supporting assembly 1b is arranged on the front side of the frame 1a, and a secondary supporting assembly 1b having the same structure as the supporting assembly 1b is symmetrically arranged on the back side of the frame 1a. The secondary supporting assembly 1b is completely identical in structure to the supporting assembly 1b and is arranged on the front and back sides of the frame 1a respectively.

[0099] After the support assembly 1b and the auxiliary support assembly 1b are respectively arranged on the front and back sides of the frame 1a, a flip assembly 2c is arranged on the corresponding assembly station on the assembly table 2, and the flip assembly 2c includes a flip bracket 2c1 and a flip motor 2c2. The flip assembly 2c is rotatably mounted on the frame 2a, and the flip motor 2c2 is fixed on the frame 2a, and its output shaft is connected to the flip bracket 2c1 and drives the flip bracket 2c1 to rotate; the rotation axis of the flip bracket 2c1 is arranged along the extension direction of the hanger 1; the flip bracket 2c1 is provided with a locking assembly 2c3 for fixing the hanger 1 on the flip bracket 2c1.

[0100] After driving the front support assembly 1b, the driving assembly 2b turns over the bracket 2c1 to rotate, so that the auxiliary support assembly 1b and the support assembly 1b are interchanged. The two driving assemblies 2b of the same cooperative group can also be used to drive the auxiliary support assembly 1b.

[0101] The cooperation between the rear drive mechanism and the rear spring piece 1b2a: Figure 4 and Figure 6 As shown, the free end of the rear spring piece 1b2a is provided with a driving part that cooperates with the rear supporting mechanism 1b2, and the driving part extends to the left or right side of the frame 1a to the outside of the projection range of the workpiece 5. By extending the driving part outside the range of the workpiece 5, it is possible to avoid the rear driving mechanism from being inserted into the range of the workpiece 5 to operate the rear spring piece 1b2a, and to avoid the rear driving mechanism from colliding with the workpiece 5.

[0102] The rear driving mechanism includes a rear driving arm 2b5 and a driver. The driver drives the rear driving arm 2b5 to approach or move away from the hanger 1, and the working end of the rear driving arm 2b5 is aligned with the rear spring piece 1b2a.

[0103] like Figure 3 After multiple support components 1b are arranged on the hanger 1, the drive components 2b are arranged on the assembly table 2 on both sides of the hanger 1 at intervals along the front and rear directions of the extension of the hanger 1. And they are in the same horizontal plane as the hanger 1. On the one hand, it is used to prevent the drive component 2b from colliding with the workpiece 5 or colliding with the workpiece manipulator 3 when the workpiece 5 is loaded or unloaded. On the other hand, it is used to prevent multiple drive components 2b from interfering with each other and affecting the operation. Under the condition that multiple drive components 2b are arranged at intervals in front and back, it is not convenient for the rear drive arm 2b5 to move in the front and rear directions. Therefore, in the present application, the rear drive arm 2b5 moves in the left and right directions, and the working end of the rear drive arm 2b5 has an inclined working surface. The left and right movement of the drive arm is converted into the front and rear movement of the rear spring piece 1b2a through the inclined working surface.

[0104] When the rear driving arm 2b5 moves toward the hanger 1, the working part of the rear spring piece 1b2a contacts the working surface of the driving arm and slides on the inclined working surface, so that the free end of the rear spring piece 1b2a elastically deforms forward, and the rear hook 1b2b moves away from the edge of the workpiece 5 toward the inside of the workpiece 5.

[0105] The side drive mechanism and the side spring piece 1b3a cooperate as follows: Figure 4 and Figure 6 As shown, the free end of the side spring piece 1b3a has a driving part that cooperates with the side support structure. The driving part extends to the left or right side of the frame 1a beyond the projection range of the workpiece 5. Similarly, extending the driving part outside the workpiece 5 can avoid collision between the side driving mechanism and the workpiece 5.

[0106] The side driving mechanism comprises a side driving arm 2b6 and a driver, wherein the driver is used to drive the side driving arm 2b6 to approach or move away from the hanger 1, and the working end of the side driving arm 2b6 is aligned with the side spring sheet 1b3a. The working end of the side driving arm 2b6 is a fork-shaped structure.

[0107] When the side driving arm 2b6 moves toward the direction approaching the hanger 1, the driving part of the side spring piece 1b3a is inserted into the fork-shaped structure of the side driving arm 2b6, and the side driving arm 2b6 pushes the free end of the side spring piece 1b3a inward, causing the side spring piece 1b3a to elastically deform, and the side hook 1b3b moves away from the edge of the workpiece 5 toward the inside of the workpiece 5.

[0108] Specific design of drive component 2b:

[0109] like Figure 5 As shown, the driving assembly 2b includes a base 2b1. The base 2b1 is fixed on the frame 2a and is located on the left and right sides of the assembly station 2d. A first track 2b2 extending in the left and right directions is arranged on the base 2b1. A mounting seat 2b3 is slidably arranged on the first track 2b2. A first driver 2b4 is arranged between the mounting seat 2b3 and the base 2b1 to drive the mounting seat 2b3 to slide on the first track 2b2. A side driving arm 2b6 and a rear driving arm 2b5 are fixedly installed on the mounting seat 2b3. The working end of the side driving arm 2b6 is aligned with the side spring sheet 1b3a, and the working end of the side driving arm 2b6 is a fork-shaped structure. The working end of the rear driving arm 2b5 is aligned with the rear spring sheet 1b2a. The working end of the rear driving arm 2b5 has an inclined working surface.

[0110] Since the movement direction of the side driving arm 2b6 and the rear driving arm 2b5 are both left and right, the side driving arm 2b6 and the rear driving arm 2b5 are connected to the mounting seat 2b3, and the mounting seat 2b3 is driven to move left and right by a first driver 2b4. The first driver 2b4 can be a cylinder or a screw mechanism.

[0111] The second rail 2b7 is fixedly mounted on the mounting seat 2b3. The second rail 2b7 is parallel to the first rail 2b2 and extends in the direction of the assembly station 2d. A support arm 2b8 is slidably arranged on the second rail 2b7. A second driver 2b9 is arranged between the support arm 2b8 and the mounting seat 2b3, and the second driver 2b9 is used to drive the support arm 2b8 to slide on the second rail 2b7. The working end of the support arm 2b8 has a bayonet, and when the support arm 2b8 moves in the direction close to the hanger 1, the bayonet on the support arm 2b8 clamps the skeleton 1a of the hanger 1. The height of the support arm 2b8 is lower than the side drive arm 2b6 and the rear drive arm 2b5. The support arm 2b8 is inserted between the support assembly 1b and the auxiliary support assembly 1b.

[0112] Since the travel of the support arm 2b8 is greater than that of the side driving arm 2b6 and the rear driving arm 2b5, a second track 2b7 is separately provided on the mounting seat 2b3, and the support arm 2b8 moves on the second track 2b7.

[0113] Working method of the upper and lower hanger system for anodizing process workpieces:

[0114] When the workpiece is hung: first, the rear drive mechanism and the side drive mechanism push the rear spring piece 1b2a and the side spring piece 1b3a respectively, so that the rear spring piece 1b2a and the side spring piece 1b3a are elastically deformed, and the side hook 1b3b and the rear hook 1b2b move inward.

[0115] Next, the workpiece 5 is disposed at a front position of the support assembly 1b.

[0116] Finally, the side drive mechanism and the rear drive mechanism release the side spring sheet 1b3a and the rear spring sheet 1b2a, and the side spring sheet 1b3a and the rear spring sheet 1b2a rebound. The side spring sheet 1b3a drives the side hook 1b3b to hook the inner side of the left and right folded edges 5c of the workpiece 5, and the rear spring sheet 1b2a drives the rear hook 1b2b to hook the inner side of the bottom folded edge 5c of the workpiece 5, and then pushes the workpiece 5 to continue to move backward until the front hook 1b1a hooks the inner side of the top folded edge 5c of the workpiece 5.

[0117] When the workpiece is hung down: first, the side drive mechanism and the rear drive mechanism support the side spring sheet 1b3a and the rear spring sheet 1b2a, and the side spring sheet 1b3a and the rear spring sheet 1b2a are deformed. The side hook 1b3b and the rear hook 1b2b move toward the inside of the workpiece 5. The side hook 1b3b and the rear hook 1b2b are separated from the workpiece 5.

[0118] Secondly, the workpiece manipulator 3 is fixed to the workpiece 5. The workpiece manipulator 3 first drives the workpiece 5 to move forward, so that the front hook 1b1a is separated from the workpiece 5, and then takes the workpiece 5 away.

[0119] Finally, the side driving mechanism and the rear driving mechanism withdraw, and the side spring piece 1b3a and the rear spring piece 1b2a rebound to a natural state.

[0120] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An upper and lower hanger system for anodizing workpieces, characterized in that: It includes hangers, assembly tables, workpiece manipulators and hanger manipulators; The hanger comprises a frame and a plurality of supporting components arranged on the frame; the supporting components are used to fix the workpiece, and include a front supporting mechanism, a rear supporting mechanism, and a side supporting mechanism for supporting the front, rear, left and right sides of the workpiece respectively; The front support mechanism includes a plurality of front hooks; the front hooks are fixed on the frame and can hook the inner side of the front folded edge of the workpiece; The rear support structure includes a rear spring sheet and a rear hook; the fixed end of the rear spring sheet is fixed to the frame, and the free end is installed with the rear hook; the rear hook can hook the inner side of the rear folded edge of the workpiece, and the rear spring sheet supports the rear hook; The side support structure includes a side spring sheet and a side hook; the side spring sheets include two, which are arranged on the left and right sides of the frame, the fixed ends of the side spring sheets are fixed on the frame, and the free ends are installed with the side hooks; the side hooks can hook the inner sides of the folded edges on the left and right sides of the workpiece, and the side spring sheets support the side hooks outwards; The assembly table includes a frame, a plurality of driving components, and a locking component; the frame is provided with an assembly station, and the locking component can fix the hanger to the assembly station; the driving component includes a rear driving mechanism and a side driving mechanism; the rear driving mechanism and the side driving mechanism can respectively support the free end of the rear spring sheet and the free end of the side spring sheet, so that the rear spring sheet and the side spring sheet are elastically deformed; A workpiece manipulator, used to load the workpiece onto the assembly table or unload the workpiece from the assembly table; The hanger manipulator is used to load the hanger onto the assembly table or unload the hanger from the assembly table.

2. The upper and lower hanger system for anodizing workpieces according to claim 1, characterized in that: The two driving components form a cooperative group, and the two active components of the same cooperative group are respectively arranged on the assembly table frames on the left and right sides of the hanger; A plurality of supporting components are arranged at intervals along the frame of the hanger; a plurality of coordinating groups are arranged at intervals on the frame along the extending direction of the hanger, and the coordinating groups correspond to the supporting components one by one.

3. The upper and lower hanger system for anodizing workpieces according to claim 1, characterized in that: The free end of the rear spring sheet is provided with a driving part cooperating with the rear supporting mechanism, and the driving part extends to the left or right side of the frame to the outside of the projection range of the workpiece; The rear driving mechanism comprises a rear driving arm and a driver, the driver drives the rear driving arm to approach or move away from the hanger, the working end of the rear driving arm is aligned with the rear spring sheet, and the working end of the rear driving arm has an inclined working surface; When the rear driving arm moves toward the hanger, the working part of the rear spring sheet contacts the working surface of the driving arm and slides on the inclined working surface, so that the free end of the rear spring sheet elastically deforms forward and the rear hook moves away from the edge of the workpiece toward the inside of the workpiece.

4. The upper and lower hanger system for anodizing workpieces according to claim 1, characterized in that: The free end of the side spring piece has a driving part that cooperates with the side support structure, and the driving part extends to the left or right side of the frame and outside the projection range of the workpiece; The side driving mechanism comprises a side driving arm and a driver, wherein the driver is used to drive the side driving arm to approach or move away from the hanger, and the working end of the side driving arm is aligned with the side spring sheet; the working end of the side driving arm is a fork-shaped structure; When the side driving arm moves toward the hanger, the driving part of the side spring piece is inserted into the fork-shaped structure of the side driving arm, and the side driving arm pushes the free end of the side spring piece inward, causing the side spring piece to elastically deform, and the side hook moves away from the edge of the workpiece toward the inside of the workpiece.

5. The upper and lower hanger system for anodizing workpieces according to claim 1, characterized in that: The driving assembly includes a base, which is fixed on the frame and the left and right sides of the combined workstation; a first track extending in the left and right directions is arranged on the base, a mounting seat is slidably arranged on the first track, and a first driver is arranged between the mounting seat and the base to drive the mounting seat to slide on the first track; The side drive arm and the rear drive arm are fixed on the mounting base. The working end of the side driving arm is aligned with the side spring sheet, and the working end of the side driving arm is a fork-shaped structure; The working end of the rear driving arm is aligned with the rear spring sheet, and the working end of the rear driving arm is provided with an inclined working surface.

6. The upper and lower hanger system for anodizing workpieces according to claim 5, characterized in that: A second track is fixedly installed on the mounting seat, the second track is parallel to the first track and extends toward the direction where the assembly station is located; a support arm is slidably arranged on the second track, and a second driver is arranged between the support arm and the mounting seat to drive the support arm to slide on the second track; The working end of the support arm is provided with a bayonet, and when the support arm moves toward the direction of approaching the hanger, the bayonet on the support arm clamps the frame of the hanger.

7. The upper and lower hanger system for anodizing workpieces according to claim 1, characterized in that: The support assembly is arranged on the front side of the frame, and a secondary support assembly with the same structure as the support assembly is symmetrically arranged on the back side of the frame; A flip assembly is arranged on the assembly station on the assembly table, and the flip assembly includes a flip bracket and a flip motor. The flip assembly is rotatably mounted on the frame, and the flip motor is fixed on the frame, and its output shaft is connected to the flip bracket and drives the flip bracket to rotate; the rotating shaft of the flip bracket is arranged along the extension direction of the hanger; the flip bracket is provided with a locking assembly for fixing the hanger on the flip bracket.

8. The upper and lower hanger system for anodizing workpieces according to claim 1, characterized in that: The execution end of the hanger manipulator is equipped with a hanger clamping tool; the hanger manipulator can transfer an empty hanger to the assembly station and take a full hanger away from the assembly station.

9. The upper and lower hanger system for anodizing workpieces according to claim 1, characterized in that: The execution end of the workpiece manipulator is provided with a workpiece clamping tool; The workpiece manipulator is divided into a workpiece loading manipulator and a workpiece unloading manipulator; the workpiece loading manipulator is used to transfer the workpiece to the support assembly of the hanger on the combination station; the workpiece unloading manipulator is used to take the workpiece away from the support assembly of the hanger on the combination station.

10. The upper and lower hanger system for anodizing workpieces according to claim 1, characterized in that: The workpiece is an edge-wrapped piece, and the edges around the workpiece are provided with inwardly bent edges, and the cross section of the workpiece is C-shaped.

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