Transfer trolley and additive manufacturing equipment

Abstract

The utility model discloses a transfer trolley, which is used for transferring a formed cylinder body and comprises a frame, a horizontal conveying mechanism, a lifting driving mechanism and a positioning connecting mechanism, a plurality of moving rollers are arranged below the frame, the lifting driving mechanism is connected above the frame, and the positioning connecting mechanism is connected with the horizontal conveying mechanism. The horizontal conveying mechanism is connected to the upper portion of the lifting driving mechanism, and the lifting driving mechanism is used for driving the horizontal conveying mechanism to do lifting motion. And the frame and the host or the cleaning equipment are positioned and connected through the positioning and connecting mechanism. The utility model further discloses additive manufacturing equipment which comprises the transfer trolley. According to the utility model, seamless butt joint with different host machines or cleaning equipment can be realized, and the height can be adjusted within a certain range, so that the device can be compatible with the condition of height difference of different equipment, and one-to-many simple production is realized.

Description

Technical Field

[0001] The utility model belongs to the technical field of additive manufacturing, and specifically relates to a transfer trolley and additive manufacturing equipment. Background Art

[0002] Additive manufacturing technology is an advanced manufacturing technology with distinctive characteristics such as digital manufacturing, high flexibility and adaptability, direct CAD model drive, fast, and rich and diverse material types. Since it is not limited by the complexity of the part shape and does not require any tooling and molds, it has a very wide range of applications. Selective Laser Melting (SLM) is one of the additive manufacturing technologies that has developed rapidly in recent years. It uses powder materials as raw materials and uses lasers to scan the cross-section of three-dimensional entities layer by layer to complete prototype manufacturing. Its basic working process is: the powder feeding device delivers a certain amount of powder to the working platform surface, the powder spreading device spreads a layer of powder material on the bottom plate of the forming cylinder or the upper surface of the formed part, and the laser galvanometer system controls the laser to scan the solid part powder layer according to the cross-sectional profile of the layer with an approximately constant spot size and beam energy, so that the powder melts and bonds with the formed part below; when a layer of cross section is sintered, the working platform drops a layer of thickness, and the powder spreading device spreads a layer of uniform and dense powder on it, and scans and sinters a new layer of cross section, and after several layers of scanning and superposition, the entire prototype manufacturing is completed.

[0003] After the above-mentioned prototype manufacturing is completed, the excess powder and formed products need to enter the next cleaning process. After the forming cylinder is separated from the piston, the forming cylinder is transferred out of the equipment to a special cleaning station for cleaning. After the cleaning is completed, the forming cylinder needs to be transferred back into the equipment and connected to the piston. The carrier required for the forming cylinder transfer process is a transfer cart. This requires the transfer cart to seamlessly connect with the mainframe or cleaning equipment of different additive manufacturing equipment. Due to the variety of equipment conditions at the production site, the transfer cart needs to have greater compatibility to adapt to different equipment production conditions. Therefore, the utility model designs this transfer cart, which can achieve seamless docking with different mainframes or cleaning equipment, and can adjust the height within a certain range, so that it can be compatible with the height difference of different equipment, thereby realizing one-to-many simplified production. Utility Model Content

[0004] The utility model provides a transfer trolley which can achieve seamless docking with different main machines or cleaning equipment and can adjust the height within a certain range so that it can be compatible with the height differences of different equipment and realize one-to-many simplified production.

[0005] The specific technical solutions adopted by the utility model are as follows:

[0006] A transfer trolley is used for transferring a forming cylinder body, comprising a frame, a horizontal conveying mechanism, a lifting drive mechanism and a positioning connection mechanism. A plurality of movable rollers are provided below the frame, the lifting drive mechanism is connected above the frame, the horizontal conveying mechanism is connected above the lifting drive mechanism, and the lifting drive mechanism is used to drive the horizontal conveying mechanism to perform lifting and lowering movements; the frame and a main machine or a cleaning device are positioned and connected via the positioning connection mechanism.

[0007] Furthermore, the positioning connection mechanism includes a positioning block and a positioning pin, the positioning block is connected to the frame, the positioning block is provided with a first positioning hole, and the host or cleaning device is provided with a second positioning hole; when the frame is positioned and connected with the host or cleaning device, the positioning pin is inserted into the first positioning hole and the second positioning hole.

[0008] Furthermore, the positioning and connecting mechanism also includes a first copper sleeve and a second copper sleeve, the first copper sleeve is installed in the first positioning hole, and the second copper sleeve is installed in the second positioning hole; when the frame is positioned and connected with the host or cleaning device, the positioning pin is inserted into the first copper sleeve and the second copper sleeve.

[0009] Furthermore, the lifting drive mechanism includes a lifting drive hand wheel, a reducer, a lifting shaft, a transmission shaft, a gear and a lifting seat; the number of the lifting seats is four, and the four lifting seats are distributed at four corners above the frame, and the lifting seats are connected to the frame; the lifting seat is a hollow structure, and the lifting shaft is provided with teeth along its length direction;

[0010] There are four lifting shafts, one lifting shaft is correspondingly distributed to each lifting seat, and the lifting shaft is movably installed on the lifting seat, and the lifting shaft can perform lifting and lowering movements on the lifting seat; there are four transmission shafts, and both ends of each transmission shaft are connected with the gears; one transmission shaft is correspondingly distributed between each two adjacent lifting seats, and both ends of the transmission shaft are respectively rotatably connected to the corresponding two lifting seats, and the gears at both ends of the transmission shaft are respectively located in the corresponding two lifting seats, and the gears are meshed with the teeth on the corresponding lifting shaft;

[0011] The tops of the four lifting shafts are all connected to the horizontal conveying mechanism; the reducer is installed on the top of the frame, the input end of the reducer is connected to the lifting drive handwheel, and the output end of the reducer is connected to one of the transmission shafts.

[0012] Furthermore, the transfer trolley also includes a first outer cover, and the reducer, lifting shaft, transmission shaft and lifting seat are covered by the first outer cover.

[0013] Furthermore, the horizontal conveying mechanism includes a horizontal conveying handwheel, a horizontal seat, rollers and a sprocket chain mechanism. The horizontal seat is connected to the lifting drive mechanism. There are multiple rollers, and the multiple rollers are arranged in parallel and at equal intervals along the horizontal direction of the horizontal seat. The rollers are rotatably installed on the horizontal seat, and the multiple rollers are connected by the sprocket chain mechanism. The horizontal conveying handwheel is connected to one of the rollers.

[0014] Furthermore, the transfer trolley also includes a second outer cover, and the side of the horizontal seat and the sprocket chain mechanism are covered by the second outer cover.

[0015] Furthermore, the transfer cart also includes a handle connected to the frame.

[0016] An additive manufacturing device comprises the transfer trolley.

[0017] The beneficial effects of the utility model are as follows: the utility model realizes the positioning connection between the frame and the main machine or the cleaning device through the positioning connection mechanism, thereby realizing seamless docking of the transfer trolley with different main machines or cleaning devices. At the same time, the lifting and lowering of the horizontal conveying mechanism is realized through the lifting and lowering drive mechanism, thereby realizing the height adjustment of the transfer trolley within a certain range, so that it can be compatible with the height difference of different equipment, and realize one-to-many simplified production. The horizontal conveying mechanism facilitates the transfer of the forming cylinder from the main machine or the cleaning device to the horizontal conveying mechanism, and facilitates the transfer of the forming cylinder from the horizontal conveying mechanism to the main machine or the cleaning device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a three-dimensional diagram of the utility model;

[0020] Figure 2 for Figure 1 A stereogram after being rotated to a certain angle;

[0021] Figure 3 for Figure 1 A three-dimensional diagram after the first outer cover and the second outer cover are installed;

[0022] Figure 4 It is a three-dimensional diagram of the lifting drive mechanism of the utility model;

[0023] Figure 5for Figure 4 Three-dimensional image after removing the lifting seat.

[0024] The above reference numerals:

[0025] 1. Frame; 2. Lifting drive mechanism; 20. Lifting drive hand wheel; 21. Reducer; 22. Transmission shaft; 23. Lifting seat; 24. Lifting shaft; 25. Gear; 240. Tooth; 3. Horizontal conveying mechanism; 30. Horizontal seat; 31. Roller; 32. Sprocket chain mechanism; 33. Horizontal conveying hand wheel; 40. Positioning block; 41. First copper sleeve; 5. Moving roller; 6. Handle; 7. First outer cover; 8. Second outer cover. DETAILED DESCRIPTION

[0026] In order to facilitate the understanding of the present invention, the present invention will be described more comprehensively with reference to the accompanying drawings. The accompanying drawings provide preferred embodiments of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive.

[0027] like Figure 1 and Figure 2 As shown, a transfer trolley provided in this embodiment is used for the transfer of a forming cylinder body, and includes a frame 1, a horizontal conveying mechanism 3, a lifting drive mechanism 2 and a positioning connection mechanism. A plurality of movable rollers 5 are provided at the bottom of the frame 1. In this embodiment, the number of movable rollers 5 is four. The lifting drive mechanism 2 is connected to the top of the frame 1. The horizontal conveying mechanism 3 is connected to the top of the lifting drive mechanism 2. The lifting drive mechanism 2 is used to drive the horizontal conveying mechanism 3 to perform lifting and lowering movements. The positioning connection mechanism is installed at the bottom of the frame 1. The positioning connection mechanism is used for positioning and connecting the frame 1 with a main machine or a cleaning device.

[0028] In this embodiment, the frame 1 is positioned and connected with the main machine or cleaning equipment through a positioning connection mechanism, so that the transfer cart can be seamlessly connected with different main machines or cleaning equipment. At the same time, the lifting and lowering of the horizontal conveying mechanism 3 is realized through the lifting drive mechanism 2, so that the height adjustment of the transfer cart within a certain range can be realized, so that it can be compatible with the height difference of different equipment, and realize one-to-many simplified production. The horizontal conveying mechanism 3 facilitates the transfer of the forming cylinder from the main machine or cleaning equipment to the horizontal conveying mechanism 3, and facilitates the transfer of the forming cylinder from the horizontal conveying mechanism 3 to the main machine or cleaning equipment. Under the action of the moving roller 5, the movement of the transfer cart is facilitated.

[0029] When the transfer trolley transfers the forming cylinder, the positioning connection mechanism positions and connects the frame 1 with the main machine or cleaning equipment, and then drives the horizontal conveying mechanism 3 to rise and fall through the lifting drive mechanism 2 to adjust the horizontal height of the horizontal conveying mechanism 3 so that the horizontal height of the horizontal conveying mechanism 3 is adapted to the corresponding main machine or cleaning equipment. Then the horizontal conveying mechanism 3 performs horizontal conveying movement, so that the forming cylinder is transferred from the main machine or cleaning equipment to the horizontal conveying mechanism 3 to complete the transfer of the forming cylinder, or the forming cylinder is transferred from the horizontal conveying mechanism 3 to the main machine or cleaning equipment to complete the transfer of the forming cylinder. When the forming cylinder is completed to be transferred out / in, the frame 1 is separated from the main machine or cleaning equipment, so that the transfer trolley completes the transfer.

[0030] In this embodiment, the positioning connection mechanism includes a positioning block 40 and a positioning pin. The positioning block 40 is connected to the frame 1. The positioning block 40 is provided with a first positioning hole. The host or cleaning device is provided with a second positioning hole. When the frame 1 is positioned and connected with the host or cleaning device, the positioning pin is inserted into the first positioning hole and the second positioning hole. Under the action of the positioning pin, the first positioning hole and the second positioning hole, the positioning connection between the frame 1 and the host or cleaning device is realized.

[0031] In this embodiment, the positioning connection mechanism further includes a first copper sleeve 41 and a second copper sleeve. The first copper sleeve 41 is installed in the first positioning hole, and the second copper sleeve is installed in the second positioning hole. When the frame 1 is positioned and connected with the host or cleaning device, the positioning pin is inserted into the first copper sleeve 41 and the second copper sleeve. Under the action of the first copper sleeve 41 and the second copper sleeve, the positioning deviation caused by the processing error is eliminated to ensure that the frame 1 and the host or cleaning device can be effectively positioned and connected together.

[0032] See also Figure 4 and Figure 5 As shown, in this embodiment, further preferably, the lifting drive mechanism 2 includes a lifting drive hand wheel 20, a reducer 21, a lifting shaft 24, a transmission shaft 22, a gear 25 and a lifting seat 23; the number of the lifting seats 23 is four, and the four lifting seats 23 are distributed at four corners above the frame 1, and the lifting seats 23 are connected to the frame 1; the lifting seat 23 is a hollow structure, and the lifting shaft 24 is provided with teeth 240 along its length direction.

[0033] There are four lifting shafts 24, one lifting shaft 24 is correspondingly distributed to each lifting seat 23, and the lifting shaft 24 is movably installed on the lifting seat 23, and the lifting shaft 24 can perform lifting and lowering movements on the lifting seat 23; there are four transmission shafts 22, and both ends of each transmission shaft 22 are connected with the gears 25; one transmission shaft 22 is correspondingly distributed between every two adjacent lifting seats 23, and both ends of the transmission shaft 22 are respectively rotatably connected to the corresponding two lifting seats 23, and the gears 25 at both ends of the transmission shaft 22 are respectively located in the corresponding two lifting seats 23, and the gears 25 are meshed with the teeth 240 on the corresponding lifting shaft 24.

[0034] The tops of the four lifting shafts 24 are connected to the horizontal conveying mechanism 3; the reducer 21 is installed on the top of the frame 1, the input end of the reducer 21 is connected to the lifting drive handwheel 20, and the output end of the reducer 21 is connected to one of the transmission shafts 22.

[0035] When the lifting drive mechanism 2 of this embodiment is working, the operator holds the lifting drive hand wheel 20 and rotates the lifting drive hand wheel 20 to drive the reducer 21 to work. The reducer 21 drives the transmission shaft 22 connected to it to rotate. The rotation of this transmission shaft 22 will drive the gears 25 at both ends to rotate, and the rotation of the gear 25 will drive the lifting shaft 24 meshing with it to perform a lifting movement. The lifting and lowering of the lifting shaft 24 will drive another gear 25 meshing with it to rotate, thereby driving another transmission shaft 22 to rotate. In this way, through motion transmission, the four transmission shafts 22 rotate synchronously, and the corresponding four lifting shafts 24 rise and fall synchronously, thereby completing the lifting function of the lifting drive mechanism 2.

[0036] See also Figure 3 As shown, in this embodiment, preferably, the transfer trolley further comprises a first outer cover 7, and the reducer 21, the lifting shaft 24, the transmission shaft 22 and the lifting seat 23 are covered by the first outer cover 7. Under the action of the first outer cover 7, the reducer 21, the lifting shaft 24, the transmission shaft 22 and the lifting seat 23 are protected, and the appearance is more beautiful. The first outer cover 7 is connected to the frame 1 to ensure the structural stability of the first outer cover 7.

[0037] In this embodiment, the horizontal conveying mechanism 3 further preferably comprises a horizontal conveying hand wheel 33, a horizontal seat 30, a roller 31 and a sprocket chain mechanism 32, the horizontal seat 30 is connected to the lifting drive mechanism 2, the number of the rollers 31 is multiple, the multiple rollers 31 are arranged in parallel and at equal intervals along the horizontal direction of the horizontal seat 30, the rollers 31 are rotatably mounted on the horizontal seat 30, and the multiple rollers 31 are connected by the sprocket chain mechanism 32, and the horizontal conveying hand wheel 33 is connected to one of the rollers 31. In this embodiment, four lifting shafts 24 are connected to the horizontal seat 30.

[0038] When the horizontal conveying mechanism 3 of this embodiment is working, the operator holds the horizontal conveying hand wheel 33 and rotates the horizontal conveying hand wheel 33 to drive the roller 31 connected thereto to rotate. The rotation of the roller 31 drives the sprocket chain mechanism 32 to rotate. Under the action of the sprocket chain mechanism 32, multiple rollers 31 are driven to rotate synchronously, thereby realizing the horizontal conveying movement of the horizontal conveying mechanism 3. When the forming cylinder is placed on the horizontal conveying mechanism 3, the forming cylinder falls on multiple rollers 31.

[0039] In this embodiment, the transfer trolley further comprises a second outer cover 8, and the side of the horizontal seat 30 and the sprocket chain mechanism 32 are covered by the second outer cover 8. Under the action of the second outer cover 8, the side of the horizontal seat 30 and the sprocket chain mechanism 32 are protected, and the appearance is more beautiful. The second outer cover 8 is connected to the horizontal seat 30 to ensure the structural stability of the second outer cover 8.

[0040] In this embodiment, the transfer trolley preferably further comprises a handle 6 connected to the frame 1. The operator pushes the handle 6 to facilitate the movement of the transfer trolley. Figure 1 As shown, in this embodiment, preferably, the handle 6 and the lifting drive hand wheel 20 are located on the same side, and the positioning connection mechanism and the handle 6 are located on opposite sides of the frame 1, and the horizontal conveying hand wheel 33 is located on the side close to the handle 6.

[0041] This embodiment also provides an additive manufacturing device, including the transfer vehicle. Of course, the additive manufacturing device also includes other conventional configuration mechanisms such as a host, which will not be elaborated in detail.

[0042] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. The utility model may have various changes and improvements without departing from the spirit and scope of the utility model. These changes and improvements fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A transfer trolley for transferring a forming cylinder body, characterized in that: The invention comprises a frame (1), a horizontal conveying mechanism (3), a lifting drive mechanism (2) and a positioning connection mechanism. A plurality of movable rollers (5) are arranged below the frame (1). The lifting drive mechanism (2) is connected to the top of the frame (1). The lifting drive mechanism (2) is connected to the horizontal conveying mechanism (3) above the lifting drive mechanism (2). The lifting drive mechanism (2) is used to drive the horizontal conveying mechanism (3) to perform lifting movement. The frame (1) and the host machine or the cleaning device are positioned and connected via the positioning connection mechanism.

2. The transfer vehicle according to claim 1, characterized in that: The positioning connection mechanism comprises a positioning block (40) and a positioning pin, the positioning block (40) being connected to the frame (1), the positioning block (40) being provided with a first positioning hole, and the host or the cleaning device being provided with a second positioning hole; when the frame (1) is positioned and connected with the host or the cleaning device, the positioning pin is inserted into the first positioning hole and the second positioning hole.

3. The transfer vehicle according to claim 2, characterized in that: The positioning connection mechanism also includes a first copper sleeve (41) and a second copper sleeve, the first copper sleeve (41) being installed in the first positioning hole, and the second copper sleeve being installed in the second positioning hole; when the frame (1) is positioned and connected with the host or the cleaning device, the positioning pin is inserted into the first copper sleeve (41) and the second copper sleeve.

4. The transfer vehicle according to claim 1, characterized in that: The lifting drive mechanism (2) comprises a lifting drive hand wheel (20), a speed reducer (21), a lifting shaft (24), a transmission shaft (22), a gear (25) and a lifting seat (23); the number of the lifting seats (23) is four, and the four lifting seats (23) are distributed at four corners above the frame (1), and the lifting seats (23) are connected to the frame (1); the lifting seat (23) is a hollow structure, and the lifting shaft (24) is provided with teeth (240) along its length direction; There are four lifting shafts (24), one lifting shaft (24) is correspondingly distributed to each lifting seat (23), and the lifting shaft (24) is movably installed on the lifting seat (23), and the lifting shaft (24) can perform lifting movement on the lifting seat (23); there are four transmission shafts (22), and both ends of each transmission shaft (22) are connected with the gears (25); one transmission shaft (22) is correspondingly distributed between each two adjacent lifting seats (23), and both ends of the transmission shaft (22) are respectively rotatably connected to the corresponding two lifting seats (23), and the gears (25) at both ends of the transmission shaft (22) are respectively located in the corresponding two lifting seats (23), and the gears (25) are meshed with the teeth (240) on the corresponding lifting shaft (24); The tops of the four lifting shafts (24) are all connected to the horizontal conveying mechanism (3); the reducer (21) is installed on the top of the frame (1), the input end of the reducer (21) is connected to the lifting drive hand wheel (20), and the output end of the reducer (21) is connected to one of the transmission shafts (22).

5. The transfer vehicle according to claim 4, characterized in that: The transfer trolley further comprises a first outer cover (7), and the reducer (21), the lifting shaft (24), the transmission shaft (22) and the lifting seat (23) are covered by the first outer cover (7).

6. The transfer vehicle according to claim 1, characterized in that: The horizontal conveying mechanism (3) comprises a horizontal conveying hand wheel (33), a horizontal seat (30), a roller (31) and a sprocket chain mechanism (32); the horizontal seat (30) is connected to the lifting drive mechanism (2); there are a plurality of rollers (31); the plurality of rollers (31) are arranged in parallel and at equal intervals along the horizontal direction of the horizontal seat (30); the rollers (31) are rotatably mounted on the horizontal seat (30); the plurality of rollers (31) are connected via the sprocket chain mechanism (32); and the horizontal conveying hand wheel (33) is connected to one of the rollers (31).

7. The transfer vehicle according to claim 6, characterized in that: The transfer trolley further comprises a second outer cover (8), and the side edge of the horizontal seat (30) and the sprocket chain mechanism (32) are covered by the second outer cover (8).

8. The transfer vehicle according to claim 1, characterized in that: The transfer trolley also includes a handle (6) connected to the frame (1).

9. An additive manufacturing device, characterized in that: A transfer trolley comprising the transfer trolley described in any one of claims 1 to 8.

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