A 3D printing base positioning processing device with wider size adaptability

Abstract

The present invention discloses a 3D printing base positioning and processing device with wider size adaptability, wherein a loading assembly comprises a fixed mounting plate, four clamping plates and four connecting rods, the mounting plate is provided with a loading hole, the four clamping plates are evenly spaced around the loading hole, the middle sections of the four clamping plates are respectively rotatably connected with the mounting plate, the distances from the rotating connection points of the four clamping plates and the mounting plate to the center of the loading hole are equal, and the two ends of the connecting rod are respectively rotatably connected with the rear ends of two adjacent clamping plates; the positioning assembly is arranged below the loading assembly, and is used to receive the workpiece dropped from the loading assembly and position and clamp it. The present invention can automatically position and clamp circular 3D printing bases of different sizes, without the need for custom sleeve clamps, and is more efficient and more adaptable.

Description

Technical Field

[0001] The present invention relates to the field of 3D printing auxiliary equipment, and in particular to a 3D printing base positioning and processing device with wider size adaptability. Background Art

[0002] 3D printing is a type of rapid prototyping technology. It is a technology that uses digital model files as the basis, uses powdered metal or plastic and other bondable materials to construct objects by printing layer by layer. 3D printing is usually achieved using digital technology material printers. It is often used to make models in the fields of mold manufacturing, industrial design, etc., and later gradually used for the direct manufacturing of some products. There are already parts printed using this technology, and this technology has been applied in many fields.

[0003] In some 3D printing projects, the base to be printed needs to be positioned or some benchmarks need to be preliminarily processed. For a circular base, the center of the circle needs to be accurately located before subsequent benchmark processing and printing processes can be performed. Currently, most circular bases are placed in fixed circular sleeves for positioning, which requires manual alignment and placement. In addition, bases of different sizes require circular sleeves of different sizes, which results in high costs, cumbersome sleeve installation and positioning, and inability to automatically position. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a 3D printing base positioning and processing device with a wider size adaptability, which can automatically position and clamp circular 3D printing bases of different sizes without the need for customized sleeve clamps, and has higher efficiency and wider applicability.

[0005] To achieve the above-mentioned purpose, the present invention discloses a 3D printing base positioning and processing device with wider size adaptability, comprising:

[0006] A feeding assembly, the feeding assembly comprising a fixed mounting plate, four clamping plates and four connecting rods, the mounting plate having a feeding hole, the four clamping plates being evenly spaced around the feeding hole, the middle sections of the four clamping plates being rotatably connected to the mounting plate respectively, the distances from the rotatable connection points of the four clamping plates and the mounting plate to the center of the feeding hole being equal, and the two ends of the connecting rod being rotatably connected to the rear ends of two adjacent clamping plates respectively;

[0007] A positioning assembly, wherein the positioning assembly is arranged below the feeding assembly, and the positioning assembly comprises a base, a support plate and three eccentric wheels. The bottom surface of the support plate is rotatably connected to the positioning base, and the distances from the rotational connection between the support plate and the positioning base to the three side walls of the support plate are respectively equal. Three eccentric wheels are evenly spaced around the circumference of the support plate, and the three eccentric wheels are rotatably connected to the positioning base, respectively. The side walls of the three eccentric wheels are respectively pressed against the three side walls of the support plate, and the top surface of the eccentric wheels is higher than the top surface of the support plate.

[0008] Preferably, it also includes a processing component and a conveying component, the processing component and the loading component are arranged side by side, the conveying component is arranged below the processing component and the loading component, the conveying component is used to transport the positioning component from below the loading component to below the processing component, the processing component includes a mounting plate that can be raised and lowered, a plurality of drill bits are arranged on the mounting plate, and positioning holes are drilled in the workpiece in the positioning component when the mounting plate is raised and lowered.

[0009] Preferably, it also includes a material unloading component, which includes a rotatable rotating frame and a suction cup connected to the rotating frame in a liftable manner, and the suction cup is used to pick up and place the workpiece after drilling.

[0010] Preferably, the conveying assembly comprises a conveyor belt, and the positioning assembly is fixed on the conveyor belt.

[0011] Preferably, a torsion spring is provided at the rotation connection between the eccentric wheel and the positioning base to make the eccentric wheel close to the supporting plate.

[0012] Preferably, the rotational connection points between the four clamping plates and the mounting plate are respectively rotationally connected with driven clamping plates.

[0013] Preferably, a torsion spring is provided at the rotation connection between the driven clamping plate and the mounting plate so that the driven clamping plate and the clamping plate have an elastic force to clamp toward each other.

[0014] Preferably, a limiting baffle is arranged around the feeding hole to guide the workpiece into the feeding hole.

[0015] Preferably, a guide sleeve is fixedly provided in the feeding hole for guiding the workpiece to fall vertically.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The four clamping plates of the feeding assembly are evenly spaced and linked, so that the round workpiece is in the middle of the feeding hole when clamped by the four clamping plates, and automatic preliminary positioning can be achieved;

[0018] The three eccentric wheels of the positioning assembly are evenly spaced and linked. After the circular workpiece falls from the loading hole to the top surface of the pallet, the three eccentric wheels rotate in conjunction with the rotation of the pallet, thereby clamping the circular workpiece and positioning it in the center of the pallet, which can achieve precise positioning and clamping.

[0019] By setting up processing components, unloading components, and conveying components for conveying, loading, positioning, processing, and unloading can be automated, which is suitable for the situation where the base needs to be replaced at regular intervals during the 3D printing production process, so that the operator does not need to get up many times at night to replace the base, which greatly liberates manpower;

[0020] The clamping method for loading and positioning is applicable to round workpieces of different sizes, avoiding the need for customized sleeve clamps in the past, and is more efficient and adaptable. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present invention;

[0022] Figure 2 It is a schematic diagram of the overall structure of the feeding component;

[0023] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0024] Figure 4 It is a schematic diagram of the overall structure of the positioning component;

[0025] Figure 5 for Figure 4 Enlarged view of point B in the middle;

[0026] Figure 6 It is a schematic diagram of the overall structure of the transmission component;

[0027] Figure 7 It is a schematic diagram of the overall structure of the processing component;

[0028] Figure 8 It is a schematic diagram of the overall structure of the blanking component. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solutions and advantages of the present invention clearer, the following will be combined with Figure 1 The accompanying drawing of Figure X further describes the present invention in detail.

[0030] Reference Figure 1 - Figure 8As shown, a 3D printing base positioning and processing device with wider size adaptability includes a loading component 2, a positioning component 3, a processing component 4, a unloading component 5 and a conveying component 1. The conveying component 1 is arranged below the loading component 2, the processing component 4, and the unloading component 5 and conveys the positioning component 3 through the loading component 2, the processing component 4 and the unloading component 5 in sequence.

[0031] The loading assembly 2 includes a fixed mounting plate 2a, which has a loading hole 2g. A guide sleeve 2c is fixedly arranged in the loading hole 2g for guiding the circular workpiece to fall vertically. Limit baffles 2d are arranged around the loading hole 2g for guiding the workpiece to enter the guide sleeve 2c. The limit baffles 2d are spaced relatively large to facilitate the placement of the workpiece and can only be used for rough limiting.

[0032] Four clamping structures 2f are respectively arranged around the mounting plate 2a, and the clamping mechanism 2f includes a clamping plate 2f1 and a driven plate 2f2. The four clamping plates 2f1 are evenly spaced around the guide sleeve 2c, and the middle sections of the four clamping plates 2f1 are respectively rotatably connected to the mounting plate 2a, and the distances from the rotating connection points of the four clamping plates 2f1 and the mounting plate 2a to the center of the guide sleeve 2c are respectively equal. The rotating connection points of the four clamping plates 2f1 and the mounting plate 2a are respectively rotatably connected with driven clamping plates 2f2, and the rotating connection points of the driven clamping plates 2f2 and the mounting plate 2a are provided with torsion springs so that the driven clamping plates 2f2 and the clamping plates 2f1 have elastic forces for clamping toward each other, so that the clamping plates 2f1 have more clamping positions and more uniform force when clamping the workpiece.

[0033] The rear ends of two adjacent clamping plates 2f1 are rotatably connected to the two ends of the connecting rod 2e, one of the connecting rods 2e is connected to the clamping cylinder 2b, and the clamping cylinder 2b drives the connecting rod 2e to translate, thereby linking the four clamping plates 2f1 to swing around the rotating connection with the mounting plate 2a at the same time. The four clamping plates 2f1 swing toward the center of the guide sleeve 2c at the same time, thereby clamping the offset workpiece to align with the center of the guide sleeve 2c, and then releasing it to drop.

[0034] The positioning assembly 3 is arranged below the loading assembly 2 for receiving the workpiece dropped from the loading assembly 2. The positioning assembly 3 includes a positioning base 3a, a support plate 3d and three eccentric wheels 3f. The bottom surface of the support plate 3d is rotatably connected to the positioning base 3a. The distances between the rotation connection between the support plate 3d and the positioning base 3a and the three side walls of the support plate 3d are respectively equal. Three eccentric wheels 3f are evenly spaced around the circumference of the support plate 3d. The bottom surfaces of the three eccentric wheels 3f are eccentrically fixed with rotating shafts 3e and are respectively rotatably connected to the positioning base 3a. The side walls of the three eccentric wheels 3f are respectively tightly attached to the three side walls of the support plate 3d. The eccentric wheels 3f The top surface of is higher than the top surface of the support plate 3d; the bottom surface of the positioning base 3a is fixedly connected to the motor mounting frame 3b and the motor mounting frame 3b is installed with a positioning motor 3c for driving the support plate 3d to rotate; a torsion spring is provided at the rotation connection between the eccentric wheel 3f and the positioning base 3a to make the eccentric wheel 3f close to the side wall of the support plate 3d; when the support plate 3d rotates, the side wall of the support plate 3d drives the eccentric wheel 3f to rotate through friction, so that the three eccentric wheels 3f rotate toward the center of the support plate 3d at the same time, and the distance between the three eccentric wheels 3f and the center of the support plate 3d is reduced at the same time, thereby clamping the circular workpiece in the middle of the support plate 3d, and realizing accurate positioning and clamping.

[0035] The processing assembly 4 includes a processing mounting frame 4a, on which a processing cylinder 4b is fixedly provided. A mounting plate 4c is fixedly connected to the telescopic end of the processing cylinder 4b. A plurality of drill bits 4d are provided on the mounting plate 4c. The processing cylinder 4b telescopes and drives the mounting plate 4c to rise and fall, thereby drilling positioning holes for the workpiece below the mounting plate 4c.

[0036] The unloading assembly 5 includes an unloading base 5a, on which an unloading motor 5b is fixedly connected, and an unloading turntable 5c is fixedly connected to the rotating end of the unloading motor 5b, and an unloading bracket 5d is fixedly connected to the unloading turntable 5c, and an elevating chute 5f is arranged on the unloading bracket 5d, and the rear end of the unloading swing arm 5g is slidably inserted in the elevating chute 5f, and the front end of the unloading swing arm 5g is fixedly connected with a suction cup 5h for sucking the workpiece, and the top of the unloading bracket 5d is also fixedly connected with an unloading cylinder 5e, and the telescopic end of the unloading cylinder 5e is fixedly connected to the unloading swing arm 5g, and is used to drive the unloading swing arm 5g to rise and fall along the elevating chute 5f. When the unloading motor 5b drives the unloading turntable 5c to rotate, the unloading swing arm 5g is linked to swing. When the unloading swing arm 5g rises and falls and swings, the suction cup 5h is linked to rise and fall and swing, so that the workpiece is sucked and placed in the desired position.

[0037] The conveying component 1 includes a conveying bracket 1a, on which the first and second rotating shafts 1g and 1d are provided, and the conveying belt 1f is tensioned on the first and second rotating shafts 1g and 1d. The conveying bracket 1a is also fixedly connected to a conveying motor 1b, and the rotating shaft 1c of the conveying motor 1b is connected to the second rotating shaft 1d through a belt 1e, thereby driving the conveying belt 1f for transmission, and the positioning component 3 is fixedly arranged on the top surface of the conveying belt 1f.

[0038] Reference Figure 1 -8, the process of realizing automatic loading, positioning and unloading of the present invention is as follows:

[0039] After the workpiece is roughly placed between the limit baffles 2d of the loading assembly 1, the clamping cylinder 2b drives the four clamping plates 2f1 to swing simultaneously in the direction close to the center of the guide sleeve 2c, thereby clamping the offset workpiece to align with the center of the guide sleeve 2c, and then releasing it to drop vertically along the guide sleeve 2c to the support plate 3d of the positioning assembly 3;

[0040] The positioning motor 3c drives the support plate 3d to rotate, and the three eccentric wheels 3f are linked to rotate toward the center of the support plate 3d at the same time, and the distance between the three eccentric wheels 3f and the center of the support plate 3d is reduced at the same time, so that the circular workpiece is clamped in the center of the support plate 3d, and accurate positioning and clamping is achieved;

[0041] The conveyor belt 1f conveys the positioning assembly 3 to the bottom of the processing assembly 4, and the processing cylinder 4b is extended to drive the mounting plate 4c to rise and fall, thereby drilling a positioning hole for the workpiece under the mounting plate 4c, and then the conveyor belt 1f continues to convey the positioning assembly to the bottom of the blanking assembly 5;

[0042] The unloading cylinder 5e drives the unloading swing arm 5g to rise and fall, and the unloading motor 5b drives the unloading swing arm 5g to swing, which links the suction cup 5h to rise and fall and swing, so as to take out the processed workpiece in the positioning component 3 and place it to the required position.

[0043] Of course, the above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with this technology to understand the content of the present invention and implement it accordingly, and they cannot be used to limit the protection scope of the present invention. Any modifications made according to the spirit of the main technical solution of the present invention should be included in the protection scope of the present invention.

Claims

1. A 3D printing base positioning and processing device with wider size adaptability, characterized in that: include: A feeding assembly, the feeding assembly comprises a fixedly arranged mounting plate, four clamping plates and four connecting rods, the mounting plate having a feeding hole, the four clamping plates being evenly spaced around the feeding hole, the middle sections of the four clamping plates being rotatably connected to the mounting plates respectively, the distances from the rotating connection points of the four clamping plates and the mounting plates to the center of the feeding hole are equal, the two ends of the connecting rod are rotatably connected to the rear ends of two adjacent clamping plates respectively, the rotating connection points of the four clamping plates and the mounting plates are respectively rotatably connected to driven clamping plates, the rotating connection points of the driven clamping plates and the mounting plates are provided with torsion springs so that the driven clamping plates and the clamping plates have elastic forces clamping toward each other; A positioning assembly, wherein the positioning assembly is arranged below the feeding assembly, the positioning assembly comprises a positioning base, a support plate and three eccentric wheels, the bottom surface of the support plate is rotatably connected to the positioning base, the distances between the rotational connection between the support plate and the positioning base and the three side walls of the support plate are respectively equal, three eccentric wheels are evenly spaced around the circumference of the support plate, the three eccentric wheels are respectively rotatably connected to the positioning base, the side walls of the three eccentric wheels are respectively tightly attached to the three side walls of the support plate, the top surface of the eccentric wheel is higher than the top surface of the support plate, and a torsion spring is arranged at the rotational connection between the eccentric wheel and the positioning base to make the eccentric wheel close to the support plate; A processing assembly, wherein the processing assembly and the feeding assembly are arranged side by side; A conveying assembly, the conveying assembly is arranged below the processing assembly and the loading assembly, and is used to transport the positioning assembly from below the loading assembly to below the processing assembly, the processing assembly includes a mounting plate that can be raised and lowered, the mounting plate is provided with a plurality of drill bits, and the mounting plate drills positioning holes for the workpiece in the positioning assembly when the mounting plate is raised and lowered; The material unloading component comprises a rotating frame which is rotatably arranged and a suction cup which is connected to the rotating frame in a liftable manner, and the suction cup is used for taking and placing the workpiece after drilling.

2. The 3D printing base positioning and processing device with wider size adaptability according to claim 1 is characterized in that: The conveying assembly comprises a conveying belt, and the positioning assembly is fixed on the conveying belt.

3. The 3D printing base positioning and processing device with wider size adaptability according to claim 1 is characterized in that: The feeding hole is surrounded by limit baffles for guiding the workpiece to enter the feeding hole.

4. The 3D printing base positioning and processing device with wider size adaptability according to claim 3 is characterized in that: A guide sleeve for guiding the workpiece to fall vertically is fixedly arranged in the feeding hole.

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