Repeated positioning device for laser cutting machine platform

Abstract

The utility model discloses a laser cutting machine platform repeated positioning device which relates to the technical field of laser cutting machines and comprises a bottom plate, guide seats are arranged on the left side and the right side of the top of the bottom plate, guide grooves are formed in the tops of the guide seats, guide rods are installed in the guide grooves in a sliding mode, and installation cross rods are fixedly connected to the tops of the guide rods. Moving grooves are formed in the upper side and the lower side of the mounting cross rod, moving blocks are slidably mounted in the moving grooves, cutting heads are arranged at the front ends of the moving blocks, and a positioning assembly is arranged at the rear end of the mounting cross rod. Through the arrangement of the positioning assembly, when the cutting head is positioned after machining, the conical pin is inserted into the conical groove, the radial clearance is eliminated by utilizing the self-centering characteristic of the conical surface, the conical pin and the positioning column are aligned forcibly, then the cutting head is driven to move to a proper position, and the purpose of repeated positioning is accurately achieved; the gradual accumulation of errors is avoided, the machining precision is ensured, and the product quality is improved.

Description

Technical Field

[0001] This utility model relates to the field of laser cutting machine technology, specifically to a laser cutting machine platform repetitive positioning device. Background Technology

[0002] A laser cutting machine is a type of equipment that uses a laser beam as a cutting tool. It cuts, engraves, or marks materials through a high-precision control system. It is a precision and efficient processing device with broad application prospects and market demand.

[0003] Currently, in traditional laser cutting machines, the cutting head moves repeatedly during the cutting process. The positioning error accumulates gradually after each processing step, leading to a decrease in overall processing accuracy and affecting product quality. Utility Model Content

[0004] To solve the above-mentioned technical problems, a repetitive positioning device for a laser cutting machine platform is provided. This technical solution solves the problem mentioned in the background art that in traditional laser cutting machines, the cutting head moves repeatedly during cutting, and the positioning error after each processing gradually accumulates, leading to a decrease in overall processing accuracy and affecting product quality.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A laser cutting machine platform repeatable positioning device includes a base plate, a cutting platform fixedly connected to the top of the base plate, guide seats fixedly connected to the base plate on both the left and right sides of the cutting platform, a guide groove on the top of the guide seat, a guide rod slidably installed inside the guide groove, a mounting crossbar fixedly connected to the top of the guide rod, movable grooves on both the upper and lower sides of the mounting crossbar, a movable block slidably installed inside the movable groove, a fixed block fixedly connected to the front end of the movable block, a cylinder fixedly installed on the top of the fixed block, the output end of the cylinder penetrating the top of the fixed block and fixedly connected to a cutting head, a positioning component at the rear end of the mounting crossbar, a limit baffle fixedly connected to the rear side of the top of the cutting platform, and a clamping component at the rear end of the limit baffle.

[0007] Optionally, the positioning component includes a positioning column and a bracket. The positioning column is fixedly connected to the rear top of the movable block, and a tapered groove is provided on the top of the positioning column. The bracket is fixedly connected to the rear side wall of the mounting crossbar, and a second cylinder is fixedly installed on the top of the bracket. The output end of the second cylinder passes through the top of the bracket and is fixedly connected to a tapered pin.

[0008] Optionally, the front end of the mounting crossbar is provided with a mounting groove, and a rack is fixedly connected inside the mounting groove. A second drive motor is fixedly installed on the front side of the top of the moving block. The output end of the second drive motor passes through the top of the moving block and is fixedly connected to a transmission gear. The rear end of the transmission gear meshes with the front end of the rack.

[0009] Optionally, a screw is rotatably mounted inside the guide groove on the left side, and the surface of the screw is threadedly connected to the lower end of the left guide rod. A drive motor is fixedly mounted at the front end of the left guide seat, and the output end of the drive motor passes through the front sidewall of the guide seat and is fixedly connected to the front end of the screw.

[0010] Optionally, the clamping assembly includes a pair of through slots, a rotating plate, and a vertical plate. The two through slots are respectively opened on the left and right sides of the front end of the limiting baffle. Clamping plates are slidably installed inside the through slots. The rotating plate is rotatably installed on the rear end of the limiting baffle. Connecting rods are rotatably installed on the upper and lower sides of the rear end of the rotating plate. The other ends of the two connecting rods are rotatably connected to the rear ends of the two clamping plates respectively. The vertical plate is fixedly connected to the rear top of the bottom plate. A third drive motor is fixedly installed on the rear end of the vertical plate. The output end of the third drive motor passes through the rear sidewall of the vertical plate and is fixedly connected to the rear end of the rotating plate.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] 1. This solution incorporates a positioning component. Whenever the cutting head is positioned after processing, a tapered pin is inserted into a tapered groove. The self-centering property of the tapered surface eliminates radial clearance, forcibly aligning the tapered pin with the positioning post. This, in turn, moves the cutting head to the appropriate position, precisely achieving the purpose of repeated positioning. This avoids the gradual accumulation of errors, ensures processing accuracy, and improves product quality.

[0013] 2. This solution incorporates a clamping assembly. By utilizing the cooperation of a rotating plate and a connecting rod, two clamping plates are brought closer together to clamp and fix the workpiece on the cutting platform. In addition, a limiting baffle plate is used to limit the workpiece's position while ensuring its stability during the cutting process. The structure is simple, the operation is convenient, and the practicality of the device is improved. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0015] Figure 2 This is a three-dimensional structural cross-sectional view of the present invention;

[0016] Figure 3 for Figure 2 A magnified view of the structure at point A in the middle.

[0017] The numbers on the map are:

[0018] 1. Base plate; 2. Cutting platform; 3. Guide seat; 31. Drive motor one; 4. Guide groove; 41. Screw; 5. Guide rod; 6. Mounting crossbar; 61. Mounting groove; 62. Straight rack; 7. Moving groove; 8. Moving block; 81. Drive motor two; 82. Transmission gear; 9. Fixing block; 10. Cylinder one; 11. Cutting head; 12. Positioning assembly; 121. Positioning column; 122. Conical groove; 123. Bracket; 124. Cylinder two; 125. Conical pin; 13. Limiting baffle; 14. Clamping assembly; 141. Through groove; 142. Clamping plate; 143. Rotating plate; 144. Connecting rod; 145. Vertical plate; 146. Drive motor three. Detailed Implementation

[0019] The following description is intended to disclose the present invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art.

[0020] Reference Figure 1 As shown, a laser cutting machine platform repeatable positioning device includes a base plate 1, a cutting platform 2 fixedly connected to the top of the base plate 1, guide seats 3 fixedly connected to the base plate 1 on both the left and right sides of the cutting platform 2, a guide groove 4 opened on the top of the guide seat 3, a guide rod 5 slidably installed inside the guide groove 4, a mounting crossbar 6 fixedly connected to the top of the guide rod 5, a moving groove 7 opened on both the upper and lower sides of the mounting crossbar 6, a moving block 8 slidably installed inside the moving groove 7, a fixing block 9 fixedly connected to the front end of the moving block 8, a cylinder 10 fixedly installed on the top of the fixing block 9, the output end of the cylinder 10 passing through the top of the fixing block 9 and fixedly connected to a cutting head 11, a positioning component 12 provided at the rear end of the mounting crossbar 6, and the top end of the cutting platform 2... A side-fixed connection limit baffle 13 is provided, and a clamping assembly 14 is provided at the rear end of the limit baffle 13. In use, the workpiece to be cut is placed on the cutting platform 2. Through the cooperation of the rotating plate 143 and the connecting rod 144 in the clamping assembly 14, the two clamping plates 142 are driven to move closer to each other to clamp and fix the workpiece. Through the cooperation of the screw 41 and the guide rod 5, the mounting crossbar 6 is driven to move back and forth. Through the cooperation of the transmission gear 82 and the rack 62, the moving block 8 is driven to move left and right, thereby realizing the free movement of the cutting head 11 for cutting. During positioning, the cutting head 11 moves to the initial position. By inserting the tapered pin 125 into the tapered groove 122, the tapered pin 125 is forcibly aligned with the positioning post 121, and the purpose of accurate repeatable positioning is achieved, ensuring the processing accuracy.

[0021] Furthermore, such as Figure 2 and Figure 3As shown, the positioning assembly 12 includes a positioning post 121 and a bracket 123. The positioning post 121 is fixedly connected to the rear top of the movable block 8. A tapered groove 122 is provided on the top of the positioning post 121. The bracket 123 is fixedly connected to the rear side wall of the mounting crossbar 6. A cylinder 124 is fixedly installed on the top of the bracket 123. The output end of the cylinder 124 passes through the top of the bracket 123 and is fixedly connected to a tapered pin 125. A mounting groove 61 is provided at the front end of the mounting crossbar 6. A rack 62 is fixedly connected inside the mounting groove 61. A drive motor 81 is fixedly installed on the front top of the movable block 8. The output end of the drive motor 81 passes through the top of the movable block 8 and is fixedly connected to a transmission gear 82. The rear end of the transmission gear 82 meshes with the front end of the rack 62. A screw 41 is rotatably installed inside the left guide groove 4. The surface of the screw 41 is threadedly connected to the lower end of the left guide rod 5. The front end of the left guide seat 3 is fixedly installed. A drive motor 31 is provided, the output end of which passes through the front side wall of the guide seat 3 and is fixedly connected to the front end of the screw 41. During cutting, the cutting head 11 is lowered to a suitable height by the cylinder 10. The drive motor 31 drives the screw 41 to rotate, and the screw 41 drives the guide rod 5 to move along the guide groove 4. The guide rod 5 drives the mounting crossbar 6 to move back and forth. The drive motor 81 drives the transmission gear 82 to rotate. By using the meshing of the transmission gear 82 and the rack 62, the moving block 8 moves left and right along the moving groove 7, thereby driving the cutting head 11 to move freely for cutting. After cutting, the cutting head 11 returns to the initial position. The cylinder 124 drives the tapered pin 125 to be inserted into the tapered groove 122. The self-centering characteristic of the tapered surface is used to eliminate the radial clearance, so that the tapered pin 125 is forcibly aligned with the positioning post 121, thereby ensuring that the cutting head 11 is in a suitable position, ensuring positioning accuracy and avoiding the gradual accumulation of errors.

[0022] The clamping assembly 14 includes a pair of through slots 141, a rotating plate 143, and a vertical plate 145. The two through slots 141 are respectively located on the left and right sides of the front end of the limiting baffle 13. Clamping plates 142 are slidably installed inside the through slots 141. The rotating plate 143 is rotatably installed at the rear end of the limiting baffle 13. Connecting rods 144 are rotatably installed on both the upper and lower sides of the rear end of the rotating plate 143. The other ends of the two connecting rods 144 are rotatably connected to the rear ends of the two clamping plates 142, respectively. The vertical plate 145 is fixedly connected to the rear top of the base plate 1. A drive motor is fixedly installed at the rear end of the vertical plate 145. 146. The output end of the drive motor 146 passes through the rear side wall of the vertical plate 145 and is fixedly connected to the rear end of the rotating plate 143. The drive motor 146 drives the rotating plate 143 to rotate, and the rotating plate 143 drives the connecting rods 144 at both ends to move. The two connecting rods 144 respectively drive the two clamping plates 142 to move closer to each other along the through groove 141, so as to flexibly clamp workpieces of different sizes. With the help of the limiting baffle 13, the workpiece is limited while ensuring the stability of the workpiece during the cutting process. The structure is simple, the operation is convenient, and the practicality of the device is improved.

[0023] The working principle of this utility model is as follows: When in use, the workpiece to be cut is placed on the cutting platform 2, the drive motor 146 is started, and the clamping plate 142 is driven to clamp and fix the workpiece through the cooperation of the rotating plate 143 and the connecting rod 144. The cylinder 10 is started to lower the cutting head 11 to a suitable height. The drive motor 31 and the drive motor 81 are started, and the cutting head 11 is driven to move freely to cut under the cooperation of the guide rod 5 and the moving block 8. After the cutting is completed, the cutting head 11 returns to the initial position. The cylinder 124 is started to insert the tapered pin 125 into the tapered groove 122. The self-centering characteristic of the tapered surface is used to eliminate the radial gap, ensuring the positioning accuracy, avoiding the gradual accumulation of errors, and improving product quality.

[0024] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A repeatable positioning device for a laser cutting machine platform, characterized in that: Includes a base plate (1), on the top of which a cutting platform (2) is fixedly connected. Guide seats (3) are fixedly connected to the base plate (1) on both the left and right sides of the cutting platform (2). A guide groove (4) is opened on the top of each guide seat (3). A guide rod (5) is slidably installed inside the guide groove (4). A mounting crossbar (6) is fixedly connected to the top of the guide rod (5). Moving grooves (7) are opened on both the upper and lower sides of the mounting crossbar (6). The moving grooves (7) are slidably installed inside... A movable block (8) is installed, and a fixed block (9) is fixedly connected to the front end of the movable block (8). A cylinder (10) is fixedly installed on the top of the fixed block (9). The output end of the cylinder (10) passes through the top of the fixed block (9) and is fixedly connected to a cutting head (11). A positioning component (12) is provided at the rear end of the mounting crossbar (6). A limit baffle (13) is fixedly connected to the rear side of the top of the cutting platform (2). A clamping component (14) is provided at the rear end of the limit baffle (13).

2. The laser cutting machine platform repeatable positioning device according to claim 1, characterized in that: The positioning component (12) includes a positioning post (121) and a bracket (123). The positioning post (121) is fixedly connected to the rear top of the moving block (8). A tapered groove (122) is provided on the top of the positioning post (121). The bracket (123) is fixedly connected to the rear side wall of the mounting crossbar (6). A cylinder (124) is fixedly installed on the top of the bracket (123). The output end of the cylinder (124) passes through the top of the bracket (123) and is fixedly connected to a tapered pin (125).

3. The laser cutting machine platform repeatable positioning device according to claim 1, characterized in that: The front end of the mounting crossbar (6) is provided with a mounting groove (61), and a rack (62) is fixedly connected inside the mounting groove (61). A second drive motor (81) is fixedly installed on the front side of the top of the moving block (8). The output end of the second drive motor (81) passes through the top of the moving block (8) and is fixedly connected to a transmission gear (82). The rear end of the transmission gear (82) meshes with the front end of the rack (62).

4. The laser cutting machine platform repeatable positioning device according to claim 1, characterized in that: A screw (41) is rotatably installed inside the guide groove (4) on the left side. The surface of the screw (41) is threadedly connected to the lower end of the guide rod (5) on the left side. A drive motor (31) is fixedly installed at the front end of the guide seat (3) on the left side. The output end of the drive motor (31) passes through the front side wall of the guide seat (3) and is fixedly connected to the front end of the screw (41).

5. The laser cutting machine platform repeatable positioning device according to claim 1, characterized in that: The clamping assembly (14) includes a pair of through slots (141), a rotating plate (143), and a vertical plate (145). The two through slots (141) are respectively opened on the left and right sides of the front end of the limiting baffle (13). A clamping plate (142) is slidably installed inside the through slot (141). The rotating plate (143) is rotatably installed on the rear end of the limiting baffle (13). A connecting rod (144) is rotatably installed on the upper and lower sides of the rear end of the rotating plate (143). The other ends of the two connecting rods (144) are rotatably connected to the rear ends of the two clamping plates (142). The vertical plate (145) is fixedly connected to the rear top of the bottom plate (1). A drive motor (146) is fixedly installed on the rear end of the vertical plate (145). The output end of the drive motor (146) passes through the rear side wall of the vertical plate (145) and is fixedly connected to the rear end of the rotating plate (143).

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