Belt drive module, laser processing head moving mechanism and laser processing equipment

Abstract

This utility model relates to a belt drive module, a laser processing head moving mechanism, and laser processing equipment. The belt drive module includes a guide rail, a front side plate on the front side of the guide rail, a slide rail in the middle of the front side plate, a slider slidably connected to the slide rail, dust baffles on the upper and lower sides of the guide rail, and a through hole on the back of the guide rail. A carrying plate is connected to the slider, and belt connecting structures are located on both sides of the carrying plate. The belt connecting structures are located in the space between the two dust baffles. A main pulley and a secondary pulley are connected to the guide rail, and a belt is installed between the main pulley and the secondary pulley. The middle of the belt passes over the main pulley and the secondary pulley, and both ends of the belt are connected to the two belt connecting structures. A drive mechanism for driving the main pulley to rotate is connected to the main pulley. This utility model, by forming dust baffles on the upper and lower sides of the guide rail, which cooperate with the belt, can effectively prevent foreign objects from entering the belt, ensuring the stability of the belt drive mechanism.

Description

Technical Field

[0001] This utility model relates to the field of laser processing equipment technology, and in particular to a belt drive module, a laser processing head moving mechanism, and a laser processing equipment. Background Technology

[0002] Currently, the laser processing head in laser processing equipment typically moves via an X-axis moving mechanism driven by an XY-axis moving mechanism. These X-axis moving mechanisms mostly employ belt drive modules. The belt drive module includes a horizontally arranged guide rail, and clamping wheels are located at the top and bottom of the laser processing head. These clamping wheels clamp and slide along the guide rail, as seen in patent application number CN202411491333.9, entitled "A Laser Processing Equipment." This structure results in the laser processing head being positioned entirely in front of the guide rail. Belt connection structures are located on both sides of the laser processing head, also in front of the guide rail, thus exposing the back of the front belt and creating a significant gap between the front belt and the guide rail.

[0003] When laser processing equipment is working, it often produces a lot of smoke containing solid particles. After prolonged use, a large number of solid particles will inevitably accumulate on the back of the front belt. Since the belt is generally a synchronous belt to improve the accuracy of movement, when the grooves on the back of the synchronous belt are filled, it may cause the synchronous belt to slip and misalign, thus affecting the accuracy of the laser processing head's position movement. Summary of the Invention

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by providing a belt drive module, a laser processing head moving mechanism, and a laser processing equipment.

[0005] In one aspect, this utility model provides a belt drive module in which the back of the belt is not exposed to the outside, thus preventing it from being contaminated by dust or other foreign matter.

[0006] A second aspect of this utility model provides a laser processing head moving mechanism having the aforementioned belt drive module.

[0007] A third aspect of this utility model provides a laser processing device having the aforementioned laser processing head moving mechanism.

[0008] A belt drive module includes a guide rail, a front side plate on the front side of the guide rail, a slide rail in the middle of the front side plate along the length direction, a slider slidably connected to the slide rail, dust baffles extending outward on the upper and lower sides of the guide rail respectively, a through hole for the belt to pass through on the back of the guide rail, a carrying plate connected to the slider, and belt connecting structures on both sides of the carrying plate; the belt connecting structures are located in the space between the two dust baffles, a main pulley and a secondary pulley are connected to the two sides of the guide rail along the length direction respectively, a belt broken in the middle is provided between the main pulley and the secondary pulley, the middle part of the belt passes over the main pulley and the secondary pulley, the two ends of the belt are connected to the two belt connecting structures respectively, and a drive mechanism for driving the main pulley to rotate is connected to the main pulley.

[0009] Furthermore, the dust baffle is provided with an inclined portion, the outer end of the dust baffle is located outside the outer belt, the minimum gap between the two dust baffles is less than the width of the belt, and / or the outer end of the dust baffle is provided with an inner bend, the inner bend being located outside the belt.

[0010] Furthermore, the inner surface of the dust baffle is provided with several raised reinforcing ribs.

[0011] Furthermore, the two ends of the guide rail are respectively connected to a main fixing plate assembly and a secondary fixing plate assembly. The main fixing plate assembly is connected to the main pulley, and the secondary fixing plate assembly is connected to the secondary pulley. The secondary fixing plate assembly and / or the main fixing plate assembly are provided with an adjustment structure that can adjust the connection position with the guide rail.

[0012] Furthermore, the secondary fixing plate assembly includes an upper secondary fixing block and a lower secondary fixing block. One end of the guide rail is provided with a notch. An upper connecting block extends downward from the back side of the upper secondary fixing block. The upper connecting block is provided with an upper mounting hole. An upper connecting groove is provided on the back side of the guide rail. The lower connecting block is connected to the back of the guide rail through a connector passing through the upper mounting hole and the upper connecting groove. A lower connecting block extends upward from the back side of the lower secondary fixing block. The lower connecting block is provided with a lower mounting hole. A lower connecting groove is provided on the back side of the guide rail. The lower connecting block is connected to the back of the guide rail through a connector passing through the lower mounting hole and the lower connecting groove.

[0013] Furthermore, both the upper connecting groove and the lower connecting groove are T-shaped grooves.

[0014] Furthermore, the main fixing plate assembly includes a U-shaped block arranged laterally, and the front end of the guide rail is provided with a notch that mates with the U-shaped block. The U-shaped block is inserted into the notch and connected to the bottom of the notch. The U-shaped block is connected to a drive shaft, the lower end of the drive shaft is connected to the main pulley, and the upper end of the drive shaft is connected to a servo motor or a servo motor is connected to the drive shaft through a transmission mechanism. The servo motor drives the rotating shaft and the main pulley to rotate.

[0015] Furthermore, a fixed block is connected to the upper end of the U-shaped block. The fixed block has a through hole that mates with the drive shaft. The upper end of the drive shaft extends out of the fixed block. The transmission mechanism includes a secondary belt drive mechanism, which includes a driven pulley connected to the upper end of the drive shaft. The fixed block has multiple adjustment slots at the end away from the drive shaft. The lower end of this end is connected to the servo motor. The servo motor is connected to the fixed block through the adjustment slots via a connector. The shaft of the servo motor passes through the fixed block and is connected to a drive pulley. The drive pulley and the driven pulley are connected by a belt.

[0016] Furthermore, the carrier plate includes a sliding part connected to the slider. The front side of the sliding part protrudes from the dust baffle plate and is provided with a connecting part for connecting to the laser processing head. The left and right sides of the sliding part have protrusions extending outward, and the protrusions are connected to the belt connecting structure.

[0017] Preferably, the belt connection structure includes a main clamping block connected to the protrusion, and a secondary clamping block is connected to the main clamping block through a connector, forming a clamping space for clamping the belt between the main clamping block and the secondary clamping block.

[0018] More preferably, the clamping surfaces of both the main clamping block and the auxiliary clamping block are provided with friction textures.

[0019] A laser processing head moving mechanism includes the aforementioned belt drive module and a laser processing head, the back of which is connected to a carrier plate.

[0020] A laser processing device includes the aforementioned laser processing head moving mechanism.

[0021] The beneficial effects of this utility model are as follows: By forming dust baffles on the upper and lower sides of the guide rail, and cooperating with the belt, the dust baffles can effectively prevent foreign objects from entering the belt and ensure the stability of the belt drive mechanism. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of one structure of the laser processing head moving mechanism in this embodiment.

[0023] Figure 2 for Figure 1 A schematic diagram of a structure excluding the synchronization belt.

[0024] Figure 3 This is a schematic diagram of one structure of the guide rail in this embodiment.

[0025] Figure 4 for Figure 3 Enlarged diagram of point A in the middle.

[0026] Figure 5 for Figure 2 A schematic diagram from another perspective of a part of the middle.

[0027] Figure 6 This is a schematic diagram showing the interaction between the laser processing head, the carrier plate, and the slider.

[0028] Figure label:

[0029] 1—Laser processing head; 2—Guide rail; 3—Belt drive mechanism; 4—Upper auxiliary fixed block; 5—Lower auxiliary fixed block; 6—Servo motor; 7—Secondary belt drive mechanism; 8—Fixed block; 9—Carrier plate; 11—Slider; 12—Auxiliary clamping block; 13—Main clamping block; 14—Belt connection structure; 19—U-shaped block; 21—Slide rail; 22—Inclined part; 23—Reinforcing rib; 24—Inner bend; 25—Notch; 26—Upper connecting groove; 27—Perforation; 28—Dust baffle plate; 29—Lower connecting groove; 210—Front side plate; 31—Belt; 32—Auxiliary pulley; 33—Main pulley; 41—Upper connecting block; 51—Lower connecting block; 71—Drive pulley; 72—Driven pulley; 81—Adjusting groove; 91—Sliding part; 92—Connecting part. Detailed Implementation

[0030] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0031] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0032] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0033] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0034] The present invention will now be described in detail with reference to the accompanying drawings. Figures 1 to 6 As shown.

[0035] Example 1: See Figure 1 , Figure 2 A belt drive module, comprising a guide rail 2, see [link / reference]. Figure 3 The guide rail 2 has a front side plate 210 on its front side, and a slide rail 21 arranged along its length is provided in the middle of the front side plate 210. In a specific installation, the middle of the front side plate 210 is recessed to form a mounting groove, and the slide rail 21 is set in the mounting groove for easy installation. The slide rail 21 is slidably connected to a slider 11, and the upper and lower sides of the guide rail 2 extend outward to form dust baffles 28, see [reference]. Figure 4 The back of the guide rail 2 has a through hole 27 for the belt 31 to pass through. The slider 11 is connected to the carrier plate 9. The carrier plate 9 has belt connecting structures 14 on both sides. See Figure 6 The belt connection structure 14 is located in the space between the two dust baffles 28. The guide rail 2 is connected to the main pulley 33 and the auxiliary pulley 32 on both sides of the length direction. A belt 31 with a broken middle is provided between the main pulley 33 and the auxiliary pulley 32. The middle part of the belt 31 passes around the main pulley 33 and the auxiliary pulley 32. The two ends of the belt 31 are connected to the two belt connection structures 14 respectively. The main pulley 33 is connected to a drive mechanism for driving the main pulley 33 to rotate.

[0036] Compared with the prior art, this embodiment adopts a slider-rail sliding method. Secondly, dust baffles 28 are provided on both sides of the front of the guide rail 2. During use, the width of the belt 31 is preferably equal to or slightly smaller (1-2 mm smaller) than the width between the two dust baffles 28. After the belt 31 passes over the main pulley 33 or the auxiliary pulley 32 and connects to the connecting structure, the length direction of the outer belt 31 is preferably parallel to the length direction of the guide rail 2. This allows the outer belt 31, the front side of the guide rail 2, and the dust baffles 28 to form a relatively enclosed space, preventing external dust or other foreign objects from entering the space. The back of the belt 31 can remain clean and is basically not contaminated. The belt connecting structure 14 can be a belt clamp to hold the belt 31, or it can be a bolt connection structure, i.e., the belt is connected to the belt 31 through a connecting piece via a belt connecting block. The main pulley 33, the auxiliary pulley 32, and the belt 31 constitute a belt drive mechanism 3.

[0037] See Figure 3 , Figure 4 The dust baffle 28 is provided with an inclined portion 22. The outer end of the dust baffle 28 is located outside the outer belt. The minimum gap between the two dust baffles 28 is less than the width of the belt, or / and the outer end of the dust baffle 28 is provided with an inner bend portion 24, which is located outside the belt.

[0038] To avoid two problems: 1) interference between the dust baffle 28 and the belt due to its large width; and 2) excessive gap between the dust baffle 28 and the belt due to its small width, allowing dust to enter. This embodiment improves the structure of the dust baffle 28 as follows: 1) The outer end of the dust baffle 28 is inclined, with its outer end outside the outer belt. The minimum gap between the two dust baffles 28 is smaller than the width of the belt, and the gap between the dust baffle 28 and the belt is not directly exposed to the outside, reducing the chance of dust entering the gap. 2) An inner bend 24 is provided at the outer end of the dust baffle 28. This inner bend 24 blocks the belt from entering, making the gap between the belt and the dust baffle 28 L-shaped, further reducing the chance of dust entering the gap. One or both of these structural modifications can be chosen.

[0039] See Figure 4 The inner surface of the dust baffle 28 is provided with several raised reinforcing ribs 23.

[0040] Reinforcing ribs 23 are provided to improve the structural strength of the dust baffle 28.

[0041] See Figure 1 , Figure 2 The guide rail 2 is connected to a main fixing plate assembly and a secondary fixing plate assembly at both ends. The main fixing plate assembly is connected to the main pulley 33, and the secondary fixing plate assembly is connected to the secondary pulley 32. The secondary fixing plate assembly and / or the main fixing plate assembly are provided with an adjustment structure that can adjust the connection position with the guide rail 2.

[0042] The guide rail 2 is connected to a main pulley 33 and an auxiliary pulley 32 on both sides respectively. When installing the belt drive mechanism 3, it is necessary to adjust the belt tension. In this embodiment, the distance between the main pulley 33 and the auxiliary pulley 32 is adjusted to achieve the purpose of adjusting the tension. During adjustment, the distance between the two is adjusted by the adjustment structure set on the auxiliary fixed plate assembly or the main fixed plate assembly.

[0043] See Figure 1 , Figure 2 The auxiliary fixing plate assembly includes an upper auxiliary fixing block 4 and a lower auxiliary fixing block 5. One end of the guide rail 2 is provided with a notch 25. (See attached image) Figure 4An upper connecting block 41 extends downward from the back side of the upper auxiliary fixing block 4. The upper connecting block 41 is provided with an upper mounting hole. The back side of the guide rail 2 is provided with an upper connecting groove 26. The lower connecting block 51 is connected to the back of the guide rail 2 through the upper mounting hole and the upper connecting groove 26 via a connector. A lower connecting block 51 extends upward from the back side of the lower auxiliary fixing block 5. The lower connecting block 51 is provided with a lower mounting hole. The back side of the guide rail 2 is provided with a lower connecting groove 29. The lower connecting block 51 is connected to the back of the guide rail 2 through the lower mounting hole and the lower connecting groove 29 via a connector.

[0044] In this embodiment, the auxiliary pulley 32 is connected between the upper auxiliary fixing block 4 and the lower auxiliary fixing block 5 via bearings. The upper auxiliary fixing block 4 and the lower auxiliary fixing block 5 can be integrated into a laterally arranged U-shaped block 19. The upper connecting block 41 and the lower connecting block 51 abut against the back side of the guide rail 2, respectively. The connection position of the upper connecting block 41 and the lower connecting block 51 can be adjusted by providing upper connecting grooves 26 and lower connecting grooves 29 on the back side. It should be noted that the length direction of the upper connecting groove 26 and the lower connecting groove 29 is the same as the length direction of the guide rail 2. Designing the upper auxiliary fixing block 4 and the lower auxiliary fixing block 5 as separate parts can reduce material usage and lower costs. The connecting parts can be bolts, screws, etc.

[0045] See Figure 3 Both the upper connecting groove 26 and the lower connecting groove 29 are T-shaped grooves.

[0046] The T-slot design facilitates the installation of connectors, concealing the connector's head within the T-slot and preventing interference with other components.

[0047] See Figure 5 The main fixing plate assembly includes a U-shaped block 19 arranged laterally. The front end of the guide rail 2 is provided with a notch that cooperates with the U-shaped block 19. The U-shaped block 19 is inserted into the notch and connected to the bottom of the notch. The U-shaped block 19 is connected to a drive shaft. The lower end of the drive shaft is connected to the main pulley 33. The upper end of the drive shaft is connected to a servo motor 6 or is connected to the servo motor 6 through a transmission mechanism. The servo motor 6 drives the rotating shaft and the main pulley 33 to rotate.

[0048] The main fixing plate assembly is used to fix the main pulley 33. In this embodiment, the front side of the belt is located inside the dust baffle 28. To facilitate fixing the main fixing plate assembly, a notch is provided on the front right side of the guide rail 2, leaving only the back plate at the notch. The U-shaped block 19 is inserted into the notch and connected to the back plate, i.e., connected to the bottom of the notch; the connection is made by bolts. The drive shaft can be directly connected to the servo motor 6 through a coupling, or through a transmission mechanism. When using a direct connection, the installation space needs to be considered, as the servo motor 6 is located above the drive shaft, resulting in a large overall vertical height. In this embodiment, a transmission mechanism is used, which can be a gear transmission mechanism, a belt transmission mechanism, etc. The servo motor 6 is installed on one side of the main pulley 33, which can effectively reduce the overall height and make flexible use of space. Secondly, the two ends of the drive shaft are rotatably connected to the two ends of the U-shaped block 19 through bearings, and the main pulley 33 is displaced into the U-shaped block 19.

[0049] See Figure 5 The upper end of the U-shaped block 19 is connected to a fixed block 8. The fixed block 8 has a through hole that cooperates with the drive shaft. The upper end of the drive shaft extends out of the fixed block 8. The transmission mechanism includes a secondary belt drive mechanism 7. The secondary belt drive mechanism 7 includes a driven pulley 72 connected to the upper end of the drive shaft. The fixed block 8 has multiple adjustment slots 81 at the end away from the drive shaft. The lower end of this end is connected to the servo motor 6. The servo motor 6 is connected to the fixed block 8 through the adjustment slots 81 via a connector. The rotating shaft of the servo motor 6 passes through the fixed block 8 and is connected to the driving pulley 71. The driving pulley 71 and the driven pulley 72 are connected by a belt.

[0050] In this embodiment, a transmission mechanism is used to drive the transmission shaft to rotate via a servo motor 6. To facilitate the setting of the servo motor 6, a fixed block 8 is connected to the U-shaped block 19. One end of the fixed block 8 is connected to the servo motor 6. The connection is made using an adjustment groove 81, which allows the servo motor 6 to be positioned relative to the fixed block 8. This adjustment also helps to adjust the belt tension on the secondary belt drive mechanism 7.

[0051] See Figure 6 The carrier plate 9 includes a sliding part 91 connected to the slider 11. The front side of the sliding part 91 protrudes from the dust baffle plate 28 and is provided with a connecting part 92 for connecting to the laser processing head 1. The left and right sides of the sliding part 91 have protrusions extending outward, and the protrusions are connected to the belt connecting structure 14.

[0052] See Figure 6 The belt connection structure 14 includes a main clamping block 13 connected to the protrusion, and a secondary clamping block 12 connected to the main clamping block 13 via a connector. A clamping space for clamping the belt is formed between the main clamping block 13 and the secondary clamping block 12.

[0053] To facilitate clamping, at least one of the clamping surfaces of the main clamping block 13 and the auxiliary clamping block 12 is provided with friction texture.

[0054] Example 2: A laser processing head moving mechanism, including the belt drive module described above, and a laser processing head 1, the back of which is connected to a carrier plate 9.

[0055] Example 3: A laser processing device, including the laser processing head moving mechanism described above.

[0056] The above description is only a preferred embodiment of this utility model. For those skilled in the art, there will be changes in the specific implementation method and application scope based on the idea of ​​this utility model. The content of this specification should not be construed as a limitation of this utility model.

Claims

1. A belt drive module, comprising a guide rail, a front side plate on the front side of the guide rail, and a slide rail arranged along the length direction in the middle of the front side plate, wherein a slider is slidably connected to the slide rail, characterized in that: The upper and lower sides of the guide rail extend outward to form dust baffles. The back of the guide rail has a perforation for the belt to pass through. The slider is connected to the carrying plate, and the two sides of the carrying plate are respectively provided with belt connecting structures. The belt connecting structures are located in the space between the two dust baffles. The guide rail is connected to a main pulley and a secondary pulley on both sides along its length. A belt with a broken middle section is provided between the main pulley and the secondary pulley. The middle section of the belt passes around the main pulley and the secondary pulley. The two ends of the belt are respectively connected to the two belt connecting structures. The main pulley is connected to a drive mechanism for driving the main pulley to rotate.

2. The belt drive module according to claim 1, characterized in that: The dust baffle is provided with an inclined portion, the outer end of the dust baffle is located outside the outer belt, the minimum gap between the two dust baffles is less than the width of the belt, or / and, the outer end of the dust baffle is provided with an inner bend, the inner bend is located outside the belt.

3. The belt drive module according to claim 1, characterized in that: The guide rail is connected to a main fixing plate assembly and a secondary fixing plate assembly at both ends. The main fixing plate assembly is connected to the main pulley, and the secondary fixing plate assembly is connected to the secondary pulley. The secondary fixing plate assembly and / or the main fixing plate assembly are provided with an adjustment structure that can adjust the connection position with the guide rail.

4. The belt drive module according to claim 3, characterized in that: The secondary fixing plate assembly includes an upper secondary fixing block and a lower secondary fixing block. One end of the guide rail is provided with a notch. An upper connecting block extends downward from the back side of the upper secondary fixing block. The upper connecting block is provided with an upper mounting hole. An upper connecting groove is provided on the back side of the guide rail. The lower connecting block is connected to the back of the guide rail through the upper mounting hole and the upper connecting groove via a connector. A lower connecting block extends upward from the back side of the lower secondary fixing block. The lower connecting block is provided with a lower mounting hole. A lower connecting groove is provided on the back side of the guide rail. The lower connecting block is connected to the back of the guide rail through the lower mounting hole and the lower connecting groove via a connector.

5. The belt drive module according to claim 3, characterized in that: The main fixing plate assembly includes a U-shaped block arranged laterally. The front end of the guide rail has a notch that matches the U-shaped block. The U-shaped block is inserted into the notch and connected to the bottom of the notch. The U-shaped block is connected to a drive shaft. The lower end of the drive shaft is connected to the main pulley. The upper end of the drive shaft is connected to a servo motor or is connected to a servo motor through a transmission mechanism. The servo motor drives the rotating shaft and the main pulley to rotate.

6. The belt drive module according to claim 5, characterized in that: The upper end of the U-shaped block is connected to a fixed block. The fixed block has a through hole that mates with the drive shaft. The upper end of the drive shaft extends out of the fixed block. The transmission mechanism includes a secondary belt drive mechanism, which includes a driven pulley connected to the upper end of the drive shaft. The fixed block has multiple adjustment slots at the end away from the drive shaft. The lower end of this end is connected to the servo motor. The servo motor is connected to the fixed block through the adjustment slots via a connector. The shaft of the servo motor passes through the fixed block and is connected to a drive pulley. The drive pulley and the driven pulley are connected by a belt.

7. The belt drive module according to claim 1, characterized in that: The carrier plate includes a sliding part connected to the slider. The front side of the sliding part protrudes from the dust baffle and is provided with a connecting part for connecting to the laser processing head. The left and right sides of the sliding part have protrusions extending outward, and the protrusions are connected to the belt connecting structure.

8. The belt drive module according to claim 7, characterized in that: The belt connection structure includes a main clamping block connected to a protrusion, and a secondary clamping block connected to the main clamping block via a connector. A clamping space for clamping the belt is formed between the main clamping block and the secondary clamping block.

9. A laser processing head moving mechanism, characterized in that: The system includes the belt drive module as described in any one of claims 1 to 8, and further includes a laser processing head, the back of which is connected to a carrier plate.

10. A laser processing device, characterized in that: Includes the laser processing head moving mechanism as described in claim 9.

Images