Crank connecting rod jacking device of large 3D printing equipment

Abstract

The utility model relates to the technical field of metal 3D printing, in particular to a large 3D printing equipment crank connecting rod jacking device which comprises two sets of crank connecting rod jacking mechanisms, each crank connecting rod jacking mechanism comprises a support, the two ends of the top of each support are each provided with a groove, and the two ends of the top of each support are each provided with a groove body. A first support and a second support are arranged on the inner side of the groove body, a connecting rod is rotationally connected to the bottom of the first support, the tail end of the connecting rod is rotationally connected to the middle of the second support, an electric push rod is rotationally connected to the bottom end of the second support, and an electric push rod support is rotationally connected to the end, away from the second support, of the electric push rod. The electric push rod support is fixedly mounted on the surface of one side of the support; and through the designed crank connecting rod jacking mechanism, the left side and the right side are each provided with two contact faces, and the overall structure is safer and more stable.

Description

Technical Field

[0001] The utility model relates to the technical field of metal 3D printing, in particular to a crank connecting rod lifting device for large-scale 3D printing equipment. Background Art

[0002] Additive manufacturing technology is a technology that uses a 3D data model as input, metals, ceramics, plastics, etc. as raw materials, and professional manufacturing equipment to manufacture parts layer by layer and stack them layer by layer. Different from the traditional subtractive material removal technology, additive manufacturing technology is an additive material accumulation manufacturing technology.

[0003] With the introduction of large-scale additive equipment, it has become a major problem to remove large-size parts after printing. Drawing on the experience of foreign equipment, after the printing of large-scale equipment is completed, the removal of parts is usually carried out at another station. This involves the movement of the powder bin and the lifting mechanism. The traditional lifting mechanism is in the form of a left and right single electric cylinder with a small contact area, which is prone to instability and insecurity. For this reason, we propose a crank-connecting rod lifting device for large-scale 3D printing equipment. Summary of the invention

[0004] In order to overcome the shortcomings of the prior art, the utility model provides a crank-connecting rod lifting device for large-scale 3D printing equipment. Through the designed crank-connecting rod lifting mechanism, there are two contact surfaces on the left and right sides respectively, and the overall structure is safer and more stable.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions: a crank-connecting rod lifting device for large-scale 3D printing equipment, comprising a crank-connecting rod lifting mechanism, wherein the crank-connecting rod lifting mechanism is provided with two groups, and the crank-connecting rod lifting mechanism comprises a support, wherein both ends of the top of the support are provided with a groove body, and the inner sides of the groove body are respectively provided with a first bracket and a second bracket, a connecting rod is rotatably connected to the bottom of the first bracket, and the end of the connecting rod is rotatably connected to the middle position of the second bracket, and an electric push rod is rotatably connected to the bottom end of the second bracket, and the end of the electric push rod away from the second bracket is rotatably connected to the electric push rod support, and the electric push rod support is fixedly installed on one side surface of the support.

[0006] As a preferred technical solution of the utility model, the support is L-shaped, and a second sensor bracket is fixedly installed on one side of the bottom of the support close to the second bracket. A first sensor bracket is provided on one side of the connection between the first bracket and the connecting rod. The first sensor bracket is fixedly connected to the support, and sensors are installed on both the first sensor bracket and the second sensor bracket.

[0007] As a preferred technical solution of the utility model, the first bracket, the second bracket and the trough body are rotatably connected, and the rotatable connection between the first bracket, the second bracket and the trough body is provided with equal height bolts, one end of which is threaded with a nut.

[0008] As a preferred technical solution of the utility model, the two groups of the crank-connecting rod lifting mechanisms are symmetrically distributed, an object is provided between the two groups of the crank-connecting rod lifting mechanisms, and both ends of the object are located at the top of the first bracket and the second bracket.

[0009] Compared with the prior art, the utility model can achieve the following beneficial effects:

[0010] Through the designed crank-connecting rod lifting mechanism, there are two contact surfaces on the left and right sides respectively, and the overall structure is safer and more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 The utility model is a schematic diagram of an embodiment of the structure.

[0012] Figure 2 It is a schematic diagram of the structure of the utility model when viewed from above.

[0013] Figure 3 It is a schematic diagram of the jacking mechanism of the utility model.

[0014] Figure 4 It is a three-dimensional schematic diagram of the jacking mechanism of the utility model.

[0015] Among them: 1. support; 2. first bracket; 3. second bracket; 4. first sensor bracket; 5. sensor; 6. equal height bolts; 7. connecting rod; 8. second sensor bracket; 9. electric push rod; 10. electric push rod support; 11. object. DETAILED DESCRIPTION

[0016] In order to make the technical means, creative features, purpose and efficacy of the utility model easy to understand, the utility model is further described below in conjunction with specific embodiments, but the following embodiments are only preferred embodiments of the utility model, not all. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without creative work are all within the scope of protection of the utility model. The experimental methods in the following embodiments are conventional methods unless otherwise specified, and the materials, reagents, etc. used in the following embodiments are all commercially available unless otherwise specified. Example

[0017] like Figure 1-Figure 4As shown, a crank-connecting rod lifting device for a large-scale 3D printing device includes a crank-connecting rod lifting mechanism. There are two groups of crank-connecting rod lifting mechanisms. The two groups of crank-connecting rod lifting mechanisms are symmetrically distributed. An object 11 is arranged between the two groups of crank-connecting rod lifting mechanisms. Both ends of the object 11 are located at the top of a first bracket 2 and a second bracket 3. The crank-connecting rod lifting mechanism includes a support 1. The support 1 is an L-shaped structure. Both ends of the top of the support 1 are provided with a groove body. The inside of the groove body is respectively provided with a first bracket 2 and a second bracket 3. A connecting rod 7 is rotatably connected to the bottom of the first bracket 2. The end of the connecting rod 7 is rotatably connected to the middle position of the second bracket 3. The bottom end of the second bracket 3 is rotatably connected to an electric push rod 9. The end of the electric push rod 9 away from the second bracket 3 is rotatably connected There is an electric push rod support 10, and the electric push rod support 10 is fixedly installed on the surface of one side of the support 1, and a second sensor support 8 is fixedly installed on the side of the bottom of the support 1 close to the second support 3. A first sensor support 4 is provided on one side of the connection between the first support 2 and the connecting rod 7. The first sensor support 4 is fixedly connected to the support 1. Sensors 5 are installed on the first sensor support 4 and the second sensor support 8. The sensor 5 is used to monitor the moving positions of the first support 2 and the second support 3. Its principle belongs to the prior art, so it is not repeated here. The first support 2, the second support 3 and the trough body are rotatably connected. The rotatable connection between the first support 2, the second support 3 and the trough body is provided with equal height bolts 6, and one end of the equal height bolts 6 is screwed with nuts;

[0018] The implementation principle of the device is as follows: after the powder bin is transported to the printing position or the pickup position, the electric push rod 9 retracts, the second bracket 3 rotates a certain angle, and the first bracket 2 is linked with the second bracket 3 through the connecting rod 7, so as to lift the object 11 to a certain position. All joint rotation positions are equipped with equal height bolts 6, and nuts are connected behind the equal height bolts 6. After rising to the right position, the first sensor bracket 4 will trigger the sensor 5. During the extension process of the electric push rod 9, the second bracket 3 and the first bracket 2 rotate in the opposite direction, so as to lower 911 to a certain position. After falling into place, the second sensor bracket 8 will also use the sensor 5 to feedback the real-time position signal of the electric push rod 9. Through the designed crank-connecting rod lifting mechanism, there are two contact surfaces on each side, and the overall structure is safer and more stable.

[0019] The implementation modes of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited thereto, and various changes can be made within the knowledge scope of technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A crank-connecting rod lifting device for large-scale 3D printing equipment, comprising a crank-connecting rod lifting mechanism, characterized in that: The crank-connecting rod lifting mechanism is provided with two groups in total, and the crank-connecting rod lifting mechanism comprises a support (1), the top two ends of the support (1) are provided with a groove body, the inner sides of the groove body are provided with a first bracket (2) and a second bracket (3), the bottom of the first bracket (2) is rotatably connected to a connecting rod (7), the end of the connecting rod (7) is rotatably connected to the middle position of the second bracket (3), the bottom end of the second bracket (3) is rotatably connected to an electric push rod (9), the end of the electric push rod (9) away from the second bracket (3) is rotatably connected to an electric push rod support (10), and the electric push rod support (10) is fixedly mounted on a side surface of the support (1).

2. A crank-connecting rod lifting device for large-scale 3D printing equipment according to claim 1, characterized in that: The support (1) is of an L-shaped structure. A second sensor bracket (8) is fixedly mounted on a side of the bottom of the support (1) close to the second bracket (3). A first sensor bracket (4) is provided on one side of the connection between the first bracket (2) and the connecting rod (7). The first sensor bracket (4) is fixedly connected to the support (1). Sensors (5) are mounted on both the first sensor bracket (4) and the second sensor bracket (8).

3. A crank-connecting rod lifting device for large-scale 3D printing equipment according to claim 1, characterized in that: The first bracket (2), the second bracket (3) and the trough body are rotatably connected, and equal-height bolts (6) are provided at the rotatably connected positions of the first bracket (2), the second bracket (3) and the trough body, and one end of the equal-height bolt (6) is threadedly connected with a nut.

4. A crank-connecting rod lifting device for large-scale 3D printing equipment according to claim 1, characterized in that: The two groups of crank-connecting rod lifting mechanisms are symmetrically distributed, and an object (11) is provided between the two groups of crank-connecting rod lifting mechanisms. Both ends of the object (11) are located at the top of the first bracket (2) and the top of the second bracket (3).

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