A flexible positioning bracket for automatic upper and lower parts of exterior decoration parts painting

Abstract

The present invention relates to a flexible positioning bracket for automatic loading and unloading of exterior trim parts for painting, wherein a vertical frame mechanism is movably mounted on a driving mechanism to move in a first direction under the action of the driving mechanism, a supporting and positioning mechanism is fixedly mounted on the vertical frame mechanism to support and position the exterior trim parts, and a pushing-in-place mechanism is telescopically mounted on the vertical frame mechanism to flexibly position the exterior trim parts, and the pushing-in-place mechanism includes a first and a second pushing-in-place assembly, and the two pushing-in-place assemblies respectively include a support plate fixed to the vertical frame mechanism, a plurality of electric cylinders are connected to the support plate, and a supporting part for pushing the exterior trim parts is fixed to the free end of each electric cylinder. The flexible positioning bracket for automatic loading and unloading of exterior trim parts according to the present invention breaks through the technical difficulties that have long plagued the automatic flexible and effective docking of bumper products of various models, types and shapes in the process of developing automatic loading and unloading in the process of the technical flow.

Description

Technical Field

[0001] The invention relates to the coating industry of automobile exterior plastic parts, and more specifically to a flexible positioning bracket for automatically raising and lowering parts of exterior plastic parts for coating. Background Art

[0002] With the rapid development of the automobile industry, the technology is becoming more mature and the market competition is becoming more fierce. In particular, various small-batch and multi-variety new energy models and foreign high-end passenger cars have gradually entered the domestic manufacturing in recent years. Their high-quality and high-standard advanced manufacturing technology and processes are undoubtedly a huge challenge for domestic auto parts manufacturers. Therefore, how to improve the manufacturing technology of auto parts, improve production efficiency and reduce production costs, and develop and apply core new technologies and processes that meet customer needs is an urgent task for auto parts manufacturers at present, and it is also the cornerstone of the company's invincibility.

[0003] In order to spray paint on the surface of injection molded automobile (passenger car) exterior parts (such as front and rear bumpers), painting is required. At present, although the automobile exterior parts manufacturing industry, including foreign counterparts, has adopted advanced automatic painting lines for production, there has been no breakthrough in the product placement technology. It relies entirely on many manual operations, and the products are placed on the hangers of the assembly line one by one, and then the painted products are removed one by one by one. This operation process is very unfavorable to improving product quality and production efficiency and reducing labor costs. It is understood that many bumper painting companies are currently working hard on automatic placement technology, but they have made no progress due to the high technical difficulty.

[0004] In short, due to the wide variety of bumper products and their different shapes, the upper and lower workstations on the painting line require forklifts to stack various product racks at the upper and lower workstations, and then they are manually taken and placed on the hangers. In other words, in the automotive exterior plastic parts painting industry, especially in the production process of large front and rear bumper parts in the painting line with a relatively high degree of automation, the placement and removal of products on the hangers are always manual and require a lot of personnel, forming a bottleneck for the automation of the painting line. Summary of the invention

[0005] In order to break through the bottleneck of high-density labor in the product loading and unloading area of ​​the painting line and realize a truly automated and unmanned painting line, the present invention provides a flexible positioning bracket for automatic loading and unloading of exterior parts.

[0006] The flexible positioning bracket for automatically raising and lowering exterior trim parts for painting according to the present invention comprises a supporting and positioning mechanism, a vertical frame mechanism, a pushing-in-place mechanism and a driving mechanism, wherein the vertical frame mechanism is movably mounted on the driving mechanism to move in a first direction under the action of the driving mechanism, the supporting and positioning mechanism is fixedly mounted on the vertical frame mechanism to support and position the exterior trim parts, and the pushing-in-place mechanism is telescopically mounted on the vertical frame mechanism to flexibly position the exterior trim parts, wherein the pushing-in-place mechanism comprises a first pushing-in-place assembly and a second pushing-in-place assembly, wherein the two pushing-in-place assemblies respectively comprise a support plate fixed on the vertical frame mechanism, a plurality of electric cylinders are connected to the support plate, and a supporting part for pushing against the exterior trim parts is fixed at the free end of each electric cylinder.

[0007] Preferably, the supporting and positioning mechanism comprises a first supporting column and a second supporting column, wherein the top surfaces of the two supporting columns are arcuate structures for supporting the exterior decoration, and a plurality of positioning columns for positioning the exterior decoration are arranged on the top surfaces of the two supporting columns.

[0008] Preferably, the vertical frame mechanism includes a first support frame and a second support frame, wherein the two support frames respectively include frame legs, the supporting positioning mechanism is connected and fixed to the top end of the frame legs, and the bottom end of the frame legs is connected to the driving mechanism through a base.

[0009] Preferably, the two support frames respectively include two parallel and spaced-apart frame legs and a crossbeam disposed between the two frame legs and connecting the two frame legs.

[0010] Preferably, the frame legs are telescopic mechanisms to drive the supporting and positioning mechanism to move in a second direction perpendicular to the first direction.

[0011] Preferably, the vertical frame structure is an aluminum alloy profile frame.

[0012] Preferably, the driving mechanism comprises a first driving rail, a second driving rail and a connecting mechanism, wherein the first driving rail and the second driving rail are slidably connected to the working base plate through the connecting mechanism.

[0013] Preferably, the connecting mechanism includes a first ball screw, a second ball screw, a cross commutator and a servo motor, wherein the servo motor is connected to one end of the cross commutator to input power, and the first ball screw and the second ball screw are connected to the other two ends of the cross commutator to output power, thereby driving the first drive rail through the first ball screw and driving the second drive rail through the second ball screw.

[0014] Preferably, the two extending-in-place assemblies respectively include two parallel and spaced-apart support legs, and the support plate is disposed between the two support legs and connected and fixed to the two support legs.

[0015] Preferably, the exterior trim is a bumper.

[0016] According to the flexible positioning bracket for automatic loading and unloading of exterior decoration parts of the present invention, the vertical frame mechanism is moved in the first direction by the driving mechanism. Since the supporting positioning mechanism is fixedly mounted on the vertical frame mechanism, the exterior decoration parts on the supporting positioning mechanism are supported and positioned. Since the electric cylinder is mounted on the vertical frame mechanism, the flexible positioning of the exterior decoration parts is realized by contacting the exterior decoration parts with the supporting parts fixed on the plurality of electric cylinders. Therefore, the flexible positioning bracket for automatic loading and unloading of exterior decoration parts of the present invention breaks through the technical difficulties of automatic flexible and effective docking of bumper products of various models, types and shapes in the process of developing automatic loading and unloading parts in the process of process technology flow, which has long troubled the development of automatic loading and unloading parts. Specifically, the bumpers of different shapes and structures are placed on the flexible positioning bracket for automatic loading and unloading of exterior decoration parts of the present invention after being taken from the conveyor belt by the front-end robot. The flexible positioning device on the bracket can be automatically extended to an effective position that satisfies the flexible gripper of the rear-end robot according to different products, which completely changes the previous manual picking and placing method, meets the requirements of unmanned operation, and completely changes the previous difficulties of various products and various racks in stacking, and builds a bridge for the loading and unloading of fully automatic bumper painting production line. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of a flexible positioning bracket for automatic upper and lower parts of exterior decoration parts painting according to a preferred embodiment of the present invention;

[0018] Figure 2 yes Figure 1 Partial exploded view of

[0019] Figure 3 yes Figure 1 Working diagram of . DETAILED DESCRIPTION

[0020] The preferred embodiments of the present invention are given below in conjunction with the accompanying drawings and described in detail.

[0021] like Figure 1-Figure 2 As shown, according to a preferred embodiment of the present invention, a flexible positioning bracket for automatic upper and lower parts of exterior decoration painting includes a supporting and positioning mechanism 1, a vertical frame mechanism 2, a lifting and extending mechanism 3 and a driving mechanism 4, wherein the vertical frame mechanism 2 is movably mounted on the driving mechanism 4 to move in the left and right directions under the action of the driving mechanism 4, the supporting and positioning mechanism 1 is fixedly mounted on the vertical frame mechanism 2 to support and position the exterior decoration, and the lifting and extending mechanism 3 is telescopically mounted on the vertical frame mechanism 2 to flexibly position the exterior decoration.

[0022] The supporting and positioning mechanism 1 is a set of left and right arc-shaped multi-column mechanisms, including a left supporting column 11 and a right supporting column 12, wherein the top surfaces of the two supporting columns 11, 12 are arc-shaped structures, which are used to support the external decoration. In addition, a plurality of positioning columns 1a are arranged on the top surfaces of the two supporting columns 11, 12, which are used to position the external decoration.

[0023] The vertical frame mechanism 2 is a set of symmetrically telescopic frames, including a left support frame 21 and a right support frame 22, wherein the two support frames 21 and 22 respectively include two parallel and spaced frame legs 2a and a crossbeam 2b disposed between the two frame legs 2a and connecting the two frame legs 2a, and a base 2c is connected and fixed to the bottom of the frame legs 2a to connect the vertical frame mechanism 2 to the driving mechanism 4, thereby driving the vertical frame mechanism 2 to move in the left and right directions through the driving mechanism 4. In particular, the frame leg 2a is a telescopic mechanism, and its top end is connected to the supporting positioning mechanism 1 to drive the supporting positioning mechanism 1 to rise and fall in the up and down directions. In this embodiment, the vertical frame mechanism 2 is an aluminum alloy profile frame, and the lightweight material not only ensures the strength of the frame, but also reduces the weight of the frame.

[0024] The push-in-place mechanism 3 is a set of flexible mechanisms controlled by left and right multi-point servo, including a left push-in-place component 31 and a right push-in-place component 32, wherein the two push-in-place components 31 and 32 respectively include two parallel and spaced support legs 3a and a support plate 3b disposed between the two support legs 3a and connected and fixed to the two support legs 3a, a plurality of electric cylinders 3c are connected to the support plate 3b, and a support part 3d is fixed to the free end of each electric cylinder 3c. By arranging the electric cylinders 3c at corresponding positions relative to the exterior decoration, and each electric cylinder 3c extends different lengths in the left and right directions according to the different curved surfaces of the exterior decoration, the support part 3d can be flexibly positioned by touching different positions of the exterior decoration.

[0025] The driving mechanism 4 is a set of left-right symmetrical telescopic mechanism, including a left driving rail 41, a right driving rail 42 and a connecting mechanism 43, wherein the left driving rail 41 and the right driving rail 42 are connected to the working base plate 5 through the connecting mechanism 43 to slide on the base plate 5 in the left-right direction. Specifically, the connecting mechanism 43 includes a left ball screw 431, a right ball screw 432, a cross commutator 433 and a servo motor 434, wherein the servo motor 434 is connected to one end of the cross commutator 433 to input power, and the left ball screw 431 and the right ball screw 432 are connected to the other two ends of the cross commutator 433 to output power, so that the left driving rail 41 is driven by the left ball screw 431 and the right driving rail 42 is driven by the right ball screw 432. Since the left ball screw 431 and the right ball screw 432 are connected to the servo motor 434 through the cross commutator 433, the synchronization of the two driving rails 42 and 43 respectively connected to the ball screws 431 and 432 is guaranteed, thereby ensuring the synchronization of the left and right movement of the vertical frame mechanism 2.

[0026] like Figure 3 As shown, the specific working process of the flexible positioning bracket for automatic loading and unloading of exterior decoration parts according to the present invention includes: when the front-end robot flexible gripper automatically takes the bumper 6 as an example of exterior decoration parts from the conveyor belt and places it on the flexible positioning bracket for automatic loading and unloading of exterior decoration parts, under the control of the automatic program signal, the vertical frame mechanism 2 can be driven by the automatic program control of the driving mechanism 4 according to the inner length of the bumper 6, and can shrink or stretch to form an effective working distance position. At this time, the front-end robot flexible gripper puts the bumper 6 on the supporting positioning mechanism 1 under the control of the automatic program, and the push-in position mechanism 3 works to touch the inner wall of the bumper 6 for flexible positioning, and automatically pushes the bumper product to the next effective station. When the product is automatically taken away, each mechanism returns to the standby state under the control of the automatic program. The device can meet the needs of picking up and placing various types of bumper products at the next station to the bumper flexible pick-and-place gripper.

[0027] Obviously, the flexible positioning bracket for automatic loading and unloading of exterior trim parts according to the present invention can solve the dilemma of automobile bumper painting companies in manually loading and unloading products on the automatic painting line, and realize a fully automatic painting line; it can meet the application of various types of bumper products, whether they are Japanese, European, American or Chinese products, and can be used freely, which is far superior to the limited technology of horizontal loading and unloading of single Japanese (Toyota) products; it can effectively improve product quality, avoid product scratches and potential uncertain quality problems during manual loading and unloading; it can effectively save labor costs and logistics costs, and can effectively improve site utilization, and can form a large-area, cross-process fully automated application from injection molding to warehousing to loading and unloading of painting.

[0028] The above is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. The above embodiment of the present invention can also be modified in various ways. That is, all simple, equivalent changes and modifications made according to the claims and the description of the present invention fall within the scope of protection of the claims of the present invention. The contents not described in detail in the present invention are all conventional technical contents.

Claims

1. A flexible positioning bracket for automatic upper and lower parts of exterior decoration parts painting, characterized in that: It includes a supporting and positioning mechanism, a vertical frame mechanism, a pushing-in-place mechanism and a driving mechanism, wherein the vertical frame mechanism includes a first supporting frame and a second supporting frame symmetrically arranged and movably mounted on the driving mechanism so as to synchronously move in the left and right directions under the action of the driving mechanism, the supporting and positioning mechanism is fixedly mounted on the two supporting frames of the vertical frame mechanism to support and position the exterior decoration, and the pushing-in-place mechanism is telescopically mounted on the two supporting frames of the vertical frame mechanism to flexibly position the exterior decoration, wherein the pushing-in-place mechanism includes a first pushing-in-place assembly and a second pushing-in-place assembly, wherein the two pushing-in-place assemblies respectively include supporting plates fixed on the two supporting frames of the vertical frame mechanism, a plurality of electric cylinders are connected to the supporting plates and extend different lengths in the left and right directions according to the different curved surfaces of the exterior decoration, and the supporting parts for touching the exterior decoration are fixed at the free end of each electric cylinder and touch different positions of the exterior decoration for flexibly positioning.

2. The flexible positioning bracket for automatic upper and lower parts of exterior decoration parts painting according to claim 1 is characterized in that: The supporting and positioning mechanism comprises a first supporting column and a second supporting column, wherein the top surfaces of the two supporting columns are arcuate structures for supporting the exterior decoration, and a plurality of positioning columns for positioning the exterior decoration are arranged on the top surfaces of the two supporting columns.

3. The flexible positioning bracket for automatic upper and lower parts of exterior decoration parts painting according to claim 1 is characterized in that: The two support frames respectively include frame legs, the supporting positioning mechanism is connected and fixed to the top end of the frame legs, and the bottom end of the frame legs is connected to the driving mechanism through a base.

4. The flexible positioning bracket for automatic upper and lower parts of exterior decoration parts painting according to claim 3 is characterized in that: The two supporting frames respectively include two frame legs which are parallel and spaced apart from each other and a crossbeam which is arranged between the two frame legs and connects the two frame legs.

5. The flexible positioning bracket for automatic upper and lower parts of exterior decoration parts painting according to claim 3 is characterized in that: The frame legs are telescopic mechanisms to drive the supporting positioning mechanism to move in an up-and-down direction perpendicular to the left-and-right direction.

6. The flexible positioning bracket for automatic upper and lower parts of exterior decoration parts painting according to claim 1, characterized in that: The vertical frame structure is an aluminum alloy profile frame.

7. The flexible positioning bracket for automatic upper and lower parts of exterior decoration parts painting according to claim 1, characterized in that: The driving mechanism comprises a first driving rail, a second driving rail and a connecting mechanism, wherein the first driving rail and the second driving rail are slidably connected to the working base plate through the connecting mechanism.

8. The flexible positioning bracket for automatic upper and lower parts of exterior decoration parts painting according to claim 7, characterized in that: The connecting mechanism includes a first ball screw, a second ball screw, a cross commutator and a servo motor, wherein the servo motor is connected to one end of the cross commutator to input power, and the first ball screw and the second ball screw are connected to the other two ends of the cross commutator to output power, thereby driving the first drive rail through the first ball screw and driving the second drive rail through the second ball screw.

9. The flexible positioning bracket for automatic upper and lower parts of exterior decoration parts painting according to claim 1, characterized in that: The two extending-in-place components respectively comprise two parallel and spaced supporting legs, and the supporting plate is arranged between the two supporting legs and connected and fixed on the two supporting legs.

10. The flexible positioning bracket for automatic upper and lower parts of exterior decoration parts painting according to claim 1, characterized in that: The exterior trim is a bumper.

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