CNC engraving machine

Abstract

The utility model discloses a CNC (Computer Numerical Control) engraving machine, which relates to the technical field of engraving machines and comprises an engraving table, an engraving device body is arranged on the upper side of the engraving table, a limiting mechanism is arranged on the upper side of the engraving table, and a protection mechanism is also arranged on the upper side of the engraving table. According to the device, a two-way screw rod can smoothly rotate through operation of a servo motor, then a first moving block and a second moving block are driven to move through rotation of the two-way screw rod, and therefore the situation that the two-way screw rod can not smoothly limit materials is avoided, and the adaptive range of the positioning block in the using process is reduced. According to the material clamping device, the first moving block and the second moving block move to push the pushing block, the pushing block only needs to be matched with the limiting plate to clamp the material when moving, and meanwhile, the second baffle and the first baffle can shield splashed chippings.

Description

Technical Field

[0001] The utility model relates to the technical field of engraving machines, and more specifically, to a CNC engraving machine. Background Art

[0002] A CNC engraving machine is a mechanical device controlled by computer numerical control technology, used for fine engraving, cutting, milling and other processing techniques on various hard materials. The working principle of the CNC engraving machine is that through the computer control system, the designed pattern or model is converted into a series of instructions, and then transmitted to the machine control system, so that the machine processes precisely according to the instructions. The CNC engraving machine has the characteristics of high precision, high efficiency, good repeatability, etc., which can greatly improve the processing precision and production efficiency, and is widely used in fields such as process manufacturing, mold manufacturing, advertising signs, and art creation.

[0003] The utility model with the publication number CN207772724U discloses a CNC engraving machine, which includes an engraving machine body. Two fixing plates are symmetrically and fixedly installed on the top side of the engraving machine body. Placement plates are welded on one side of the two fixing plates close to each other. Sliding cavities are opened on the two fixing plates. Two sliding blocks are slidably installed in the sliding cavities. Positioning blocks are welded on one side of the two sliding blocks close to the placement plate. One side of the positioning block extends outside the fixing plate and is located above the placement plate. A sliding hole is opened on the positioning block. A sliding rod is slidably installed in the sliding hole. A plurality of fixing grooves are equidistantly opened on the top side of the placement plate. The bottom end of the sliding rod is slidably installed in the fixing groove. Limiting blocks are welded on both sides of the sliding rod. The structure of the utility model is simple and easy to use. The engraving machine body can quickly and conveniently fix the items to be engraved, meeting the user's usage requirements.

[0004] Regarding the above solution: The inventor believes that in the above reference document, by pulling the sliding rod, the limitation on the positioning block and the sliding block is cancelled, and then by releasing the pulling of the sliding rod, the limitation on the positioning block is re - achieved. The movement of the positioning block can be used to limit some materials. However, when the positioning block is in use, although it can limit the materials, when the width and length of the materials are both short, because the fixing plate does not have a moving function, it is possible that the positioning block may not be able to smoothly limit the materials, thus reducing the adaptation range of the positioning block during use. Summary of the Utility Model

[0005] Aiming at the problems existing in the prior art, the purpose of the utility model is to provide a CNC engraving machine, which can effectively solve the problem that when the width and length of the materials are both short, due to the lack of moving function of the fixing plate, it is possible that the positioning block may not be able to smoothly limit the materials, thus reducing the adaptation range of the positioning block during use.

[0006] To solve the above problems, the present utility model adopts the following technical solutions:

[0007] A CNC engraving machine, comprising an engraving table, an engraving tool body is arranged on the upper side of the engraving table, a limiting mechanism is arranged on the upper side of the engraving table, and a protection mechanism is also arranged on the upper side of the engraving table;

[0008] The limiting mechanism includes a mounting block fixedly connected to one side of the engraving table. A bidirectional screw rod is rotatably connected inside the mounting block. The outer side of the bidirectional screw rod is threadedly connected with a first moving block and a second moving block, and both the first moving block and the second moving block are slidably connected inside the mounting block. One side of each of the first moving block and the second moving block is rotatably connected with a connecting plate, and one side of each of the two connecting plates is rotatably connected with a pushing block. A limiting plate is fixedly connected to one side of the engraving table, a fixing plate is fixedly connected to one side of the mounting block, a servo motor is fixedly connected to the upper side of the fixing plate, and the output shaft of the servo motor penetrates through the mounting block. The output shaft of the servo motor is fixedly connected to one end of the bidirectional screw rod through a coupling.

[0009] As a preferred solution of the present utility model, the protection mechanism includes a first sliding groove opened on the upper side of the pushing block, a second sliding groove is opened on the upper side of the limiting plate. The pushing block is located inside the first sliding groove and slidably connected with a first baffle, and the limiting plate is located inside the second sliding groove and slidably connected with a second baffle. One-way screw rods are rotatably connected inside both the pushing block and the limiting plate, and the two one-way screw rods are respectively threadedly connected inside the first baffle and the second baffle.

[0010] As a preferred solution of the present utility model, a reinforcing block is fixedly connected inside the mounting block. The reinforcing block is arranged on the outer side of the bidirectional screw rod, and the bidirectional screw rod is rotatably connected with the reinforcing block.

[0011] As a preferred solution of the present utility model, a first fixing block is fixedly connected to one side of the mounting block, a second fixing block is fixedly connected to one side of the limiting plate. Claw slots are opened on one side of both the first fixing block and the second fixing block. A third baffle is arranged on one side of the engraving table, and a clamping block is fixedly connected to one side of the third baffle. And there are two clamping blocks. The third baffle is movably clamped inside the claw slots.

[0012] As a preferred solution of the present utility model, limiting rods are fixedly connected inside both the pushing block and the limiting plate, and the two limiting rods are respectively arranged inside the first baffle and the second baffle. The first baffle and the second baffle are both slidably connected with the two limiting rods.

[0013] As a preferred embodiment of the present utility model, a limiting groove is provided on one side of the mounting block. Limiting blocks are fixedly connected to one side of the first moving block and the second moving block respectively, and the limiting blocks are slidably connected to the inside of the limiting groove.

[0014] As a preferred embodiment of the present utility model, the pushing block and the limiting plate have the same height, the first baffle and the second baffle have the same height, and the two one-way screws have the same height.

[0015] Compared with the prior art, the advantages of the present utility model are as follows:

[0016] 1. In this device, through the operation of the servo motor, the bidirectional screw can rotate smoothly. Then, through the rotation of the bidirectional screw, the first moving block and the second moving block are driven to move. And through the movement of the first moving block and the second moving block, the pushing block is pushed. When the pushing block moves, it only needs to cooperate with the limiting plate to clamp the material. At the same time, the second baffle and the first baffle can also block the splashing debris, thereby reducing the possibility of the debris causing harm to the staff.

[0017] 2. In this device, the mounting block can smoothly limit the movement of the first moving block and the second moving block through the connection relationship between the limiting groove and the limiting block. Thus, when the first moving block and the second moving block move through the rotation of the bidirectional screw, they can be more stable and are not prone to shaking and other situations. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0019] Figure 2 is a structural schematic diagram of the pushing block and the limiting plate in the embodiment of the present utility model;

[0020] Figure 3 is a cross-sectional structural schematic diagram of the mounting block in the embodiment of the present utility model;

[0021] Figure 4 is a structural schematic diagram of the second baffle and the first baffle in the embodiment of the present utility model;

[0022] Figure 5 is a structural schematic diagram of the clamping block and the third baffle in the embodiment of the present utility model;

[0023] Figure 6 is of the present utility model Figure 3 an enlarged structural schematic diagram of part A.

[0024] Explanation of the reference numerals in the drawings:

[0025] 1. Engraving table; 2. Engraving tool body; 31. Mounting block; 32. Bidirectional screw; 331. First moving block; 332. Second moving block; 34. Connecting plate; 35. Pushing block; 36. Limiting plate; 371. Fixed plate; 372. Servo motor; 41. First chute; 42. Second chute; 43. First baffle; 44. Second baffle; 45. Unidirectional screw; 5. Limiting rod; 71. First fixing block; 72. Second fixing block; 73. Card slot; 74. Third baffle; 75. Card block; 8. Reinforcing block; 91. Limiting groove; 92. Limiting block. Detailed implementation manners

[0026] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0027] Embodiment:

[0028] Please refer to Figures 1-6 , a CNC engraving machine, including an engraving table 1, an engraving tool body 2 is arranged on the upper side of the engraving table 1, a limiting mechanism is arranged on the upper side of the engraving table 1, and a protection mechanism is also arranged on the upper side of the engraving table 1. The engraving table 1 can be used to place materials, and the engraving tool body 2 can be used to engrave the materials. The engraving table 1 and the engraving tool body 2 can form an important part of the engraving machine. The limiting mechanism can effectively limit the materials to be engraved, and the protection mechanism can block the flying debris during engraving, reducing the situation of debris causing harm to the staff. The limiting mechanism includes a mounting block 31 fixedly connected to one side of the engraving table 1, and a bidirectional screw 32 is rotatably connected inside the mounting block 31;

[0029] In addition, the outer side of the bidirectional screw 32 is threadedly connected with a first moving block 331 and a second moving block 332, and both the first moving block 331 and the second moving block 332 are slidably connected to the inner side of the mounting block 31. The mounting block 31 can play the role of installing and connecting the first moving block 331 and the second moving block 332 through the bidirectional screw 32. At the same time, the mounting block 31 can also play a limiting role on the first moving block 331 and the second moving block 332. And the threads on both sides of the bidirectional screw 32 are opposite, which enables the first moving block 331 and the second moving block 332 to move in opposite directions smoothly when the bidirectional screw 32 rotates. One side of each of the first moving block 331 and the second moving block 332 is rotatably connected with a connecting plate 34, and one side of each of the two connecting plates 34 is rotatably connected with a pushing block 35. When the first moving block 331 and the second moving block 332 move in opposite directions, they can smoothly push the pushing block 35 through the connecting plate 34. One side of the engraving table 1 is fixedly connected with a limiting plate 36;

[0030] In addition, after the pushing block 35 moves a certain distance, it can cooperate with the limiting plate 36 to play a role in limiting and clamping the material, thereby increasing the stability of the material during processing. One side of the mounting block 31 is fixedly connected with a fixing plate 371, and the upper side of the fixing plate 371 is fixedly connected with a servo motor 372. And the output shaft of the servo motor 372 penetrates through the mounting block 31. The output shaft of the servo motor 372 is fixedly connected with one end of the bidirectional screw 32 through a coupling. The mounting block 31 can play the role of installing and fixing the servo motor 372 through the fixing plate 371. When the servo motor 372 operates, it can smoothly drive the bidirectional screw 32 to rotate, so that the rotation of the bidirectional screw 32 can be smooth and convenient enough.

[0031] Specifically, the protection mechanism includes a first sliding groove 41 opened on the upper side of the pushing block 35, a second sliding groove 42 opened on the upper side of the limiting plate 36. The pushing block 35 is slidably connected with a first baffle 43 inside the first sliding groove 41, and the limiting plate 36 is slidably connected with a second baffle 44 inside the second sliding groove 42. The pushing block 35 can connect the first baffle 43 through the first sliding groove 41, and the limiting plate 36 can connect the second baffle 44 through the second sliding groove 42. One-way screws 45 are rotatably connected to the inner sides of both the pushing block 35 and the limiting plate 36;

[0032] In addition, two one-way screws 45 are respectively threadedly connected to the inner sides of the first baffle 43 and the second baffle 44. The pushing block 35 can limit the first baffle 43 through the first chute 41, while the limiting plate 36 can limit the second baffle 44 through the second chute 42. This enables the rotation of the two one-way screws 45 to smoothly drive the first baffle 43 and the second baffle 44 to move upward. After the first baffle 43 and the second baffle 44 move upward to a certain height, they can block the debris splashed during material engraving, thereby reducing the possibility of the debris causing harm to the staff.

[0033] Specifically, a reinforcing block 8 is fixedly connected to the inner side of the mounting block 31. The reinforcing block 8 is arranged outside the bidirectional screw 32, and the bidirectional screw 32 is rotatably connected to the reinforcing block 8. The mounting block 31 can play a role in installing and connecting the reinforcing block 8, while the reinforcing block 8 can limit the bidirectional screw 32 through its connection relationship with the mounting block 31, thereby increasing the stability of the bidirectional screw 32 during use and rotation.

[0034] Specifically, a first fixing block 71 is fixedly connected to one side of the mounting block 31, and a second fixing block 72 is fixedly connected to one side of the limiting plate 36. Card slots 73 are formed on one side of both the first fixing block 71 and the second fixing block 72. The mounting block 31 can install and fix the first fixing block 71, while the limiting plate 36 can connect the second fixing block 72. A third baffle 74 is arranged on one side of the engraving table 1. A clamping block 75 is fixedly connected to one side of the third baffle 74, and there are two clamping blocks 75. The third baffle 74 is movably clamped inside the card slot 73. The clamping block 75 can cooperate with the pushing block 35, the limiting plate 36, the first baffle 43 and the second baffle 44 to further block the splashed debris and increase the protection for the staff. The connection between the third baffle 74 and the card slot 73 makes the installation and disassembly of the clamping block 75 convenient and simple enough, so that the clamping block 75 can be easily disassembled when not in use.

[0035] Specifically, limiting rods 5 are fixedly connected to the inner sides of both the pushing block 35 and the limiting plate 36, and the two limiting rods 5 are respectively arranged inside the first baffle 43 and the second baffle 44. The first baffle 43 and the second baffle 44 are both slidably connected to the two limiting rods 5. The two limiting rods 5 can effectively limit the movement of the first baffle 43 and the second baffle 44, so that when the first baffle 43 and the second baffle 44 move up and down through the rotation of the one-way screw 45, they can be more stable and are not prone to shaking or slight rotation.

[0036] Specifically, a limiting groove 91 is formed on one side of the mounting block 31. Limiting blocks 92 are fixedly connected to one side of the first moving block 331 and the second moving block 332 respectively. The limiting blocks 92 are slidably connected to the inside of the limiting groove 91. The mounting block 31 can limit the limiting blocks 92 through the limiting groove 91. The connection between the two limiting blocks 92 and the first moving block 331 and the second moving block 332 enables the mounting block 31 to smoothly limit the movement of the first moving block 331 and the second moving block 332 through the connection relationship between the limiting groove 91 and the limiting blocks 92. As a result, when the first moving block 331 and the second moving block 332 move by the rotation of the bidirectional screw 32, they can be more stable and are not prone to shaking and other situations.

[0037] Specifically, the pushing block 35 and the limiting plate 36 have the same height, the first baffle 43 and the second baffle 44 have the same height, and the two one-way screws 45 have the same height. The pushing block 35 and the limiting plate 36 having the same height, and the two one-way screws 45 having the same height enable the first baffle 43 and the second baffle 44 to move to the same height when moving upward by the rotation of the one-way screws 45. The first baffle 43 and the second baffle 44 having the same height enables the first baffle 43 and the second baffle 44 to have the same height when blocking the splashing debris, and it is not prone to the situation of one side being high and the other side being low, thereby improving the effect of blocking the debris.

[0038] The working principle and usage process of the present utility model: When the device is in use, the staff can place the material to be processed on the upper side of the engraving table 1. Then, start the servo motor 372. The servo motor 372 will drive the bidirectional screw 32 to rotate through its own operation. When the bidirectional screw 32 rotates, it will smoothly drive the first moving block 331 and the second moving block 332 to move together. The movement of the first moving block 331 and the second moving block 332 will push the pushing block 35 through the connecting plate 34. After the pushing block 35 is pushed to a certain distance, it will cooperate with the limiting plate 36 to limit the material, so that the material can be stable enough during processing and engraving. Then, the staff can rotate the two one-way screws 45. Through the rotation of the two one-way screws 45, drive the first baffle 43 and the second baffle 44 to move upward. After the first baffle 43 and the second baffle 44 move upward, the staff can also install and connect the third baffle 74, thereby realizing the blocking of the splashing debris during the engraving of the material.

[0039] As described above, it is only the preferred specific embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution of the present utility model and its improved concept, making equivalent replacements or changes, shall be covered by the protection scope of the present utility model.

Claims

1. A CNC engraving machine, comprising an engraving table (1), characterized in that: An engraving device body (2) is arranged on the upper side of the engraving table (1), a limiting mechanism is arranged on the upper side of the engraving table (1), and a protective mechanism is also arranged on the upper side of the engraving table (1); The limiting mechanism comprises a mounting block (31) fixedly connected to one side of the engraving table (1); a bidirectional screw (32) is rotatably connected to the inner side of the mounting block (31); a first moving block (331) and a second moving block (332) are threadedly connected to the outer side of the bidirectional screw (32); the first moving block (331) and the second moving block (332) are both slidably connected to the inner side of the mounting block (31); and one side of each of the first moving block (331) and the second moving block (332) is rotatably connected to a connecting plate. (34), one side of the two connecting plates (34) is rotatably connected to a pushing block (35), one side of the engraving table (1) is fixedly connected to a limiting plate (36), one side of the mounting block (31) is fixedly connected to a fixing plate (371), the upper side of the fixing plate (371) is fixedly connected to a servo motor (372), and the output shaft of the servo motor (372) passes through the mounting block (31), and the output shaft of the servo motor (372) is fixedly connected to one end of the bidirectional screw (32) through a coupling.

2. A CNC engraving machine according to claim 1, characterized in that: The protection mechanism comprises a first slide groove (41) provided on the upper side of the pushing block (35), a second slide groove (42) provided on the upper side of the limiting plate (36), the pushing block (35) is located on the inner side of the first slide groove (41) and is slidably connected to a first baffle plate (43), the limiting plate (36) is located on the inner side of the second slide groove (42) and is slidably connected to a second baffle plate (44), the inner sides of the pushing block (35) and the limiting plate (36) are both rotatably connected to one-way screws (45), and the two one-way screws (45) are respectively threadedly connected to the inner sides of the first baffle plate (43) and the second baffle plate (44).

3. A CNC engraving machine according to claim 2, characterized in that: A reinforcing block (8) is fixedly connected to the inner side of the mounting block (31); the reinforcing block (8) is arranged on the outer side of the bidirectional screw rod (32); and the bidirectional screw rod (32) and the reinforcing block (8) are rotationally connected.

4. A CNC engraving machine according to claim 3, characterized in that: A first fixing block (71) is fixedly connected to one side of the mounting block (31), a second fixing block (72) is fixedly connected to one side of the limiting plate (36), a clamping slot (73) is provided on one side of the first fixing block (71) and the second fixing block (72), a third baffle (74) is provided on one side of the engraving table (1), a clamping block (75) is fixedly connected to one side of the third baffle (74), two clamping blocks (75) are provided, and the third baffle (74) is movably clamped on the inner side of the clamping slot (73).

5. A CNC engraving machine according to claim 2, characterized in that: The inner sides of the pushing block (35) and the limiting plate (36) are fixedly connected to limiting rods (5), and the two limiting rods (5) are respectively arranged on the inner sides of the first baffle plate (43) and the second baffle plate (44), and the first baffle plate (43) and the second baffle plate (44) are slidably connected to the two limiting rods (5).

6. A CNC engraving machine according to claim 1, characterized in that: A limiting groove (91) is provided on one side of the mounting block (31); one side of each of the first movable block (331) and the second movable block (332) is fixedly connected to the limiting block (92); and the limiting block (92) is slidably connected to the inner side of the limiting groove (91).

7. A CNC engraving machine according to claim 2, characterized in that: The pushing block (35) and the limiting plate (36) have the same height, the first baffle plate (43) and the second baffle plate (44) have the same height, and the two one-way screws (45) have the same height.

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