Pressing device for laser engraving

Abstract

The utility model discloses a pressing device for laser engraving, which belongs to the technical field of laser engraving, aims at solving the problem that an existing pressing device cannot turn over the angle of a workpiece, and comprises a bottom plate, two supporting plates are fixedly connected to the top of the bottom plate, and bearing grooves are fixedly connected to the inner sides of the two supporting plates. First synchronous wheels are rotatably mounted at the tops of the two bearing grooves correspondingly, first rotating shafts are rotatably connected to the positions, close to the tops, of the inner sides of the two supporting plates correspondingly, hydraulic cylinders are mounted on the inner sides of the two first rotating shafts correspondingly, clamping mechanisms are arranged at the output ends of the two hydraulic cylinders correspondingly, and a second rotating shaft is rotatably connected between the inner sides of the two supporting plates. The servo motor is arranged to drive the second rotating shaft to rotate, so that the second synchronous wheel rotates, and under the action of the synchronous belt, the first synchronous wheel drives a workpiece clamped by the clamping mechanism to turn over to change the angle, so that the front surface and the back surface of the workpiece can be smoothly engraved.

Description

Technical Field

[0001] The utility model belongs to the technical field of laser engraving, and in particular relates to a pressing device for laser engraving. Background Art

[0002] Laser engraving is based on CNC technology and uses laser as the processing medium. The processing material undergoes physical changes such as instant melting and vaporization under laser irradiation to achieve the processing purpose. Laser engraving is a device that uses laser to engrave workpieces. It can engrave various fonts and patterns on the surface of the workpiece, and the engraving accuracy is high. It is widely used in the printing and production of various billboards. Laser engraving technology has the advantages of high precision, strong controllability, wide application and high efficiency. It is a modern and efficient processing method and is widely used in industrial production and personalized customization.

[0003] The prior art discloses a clamping device for laser engraving with patent announcement number CN213531278U. The above patent includes a workbench, a lead screw, a guide rod, a fixing mechanism, a movable mechanism and a fastening mechanism. The fixing mechanism is fixed on the workbench, the guide rod is fixed on the fixing mechanism, the lead screw is threadedly connected to the movable mechanism, and the lead screw is rotatably connected to the fixing mechanism, and the fastening mechanism is detachably connected to the fixing mechanism and the movable mechanism. The device adjusts the clamping position for workpieces of different sizes to effectively clamp the workpieces, and at the same time limits the vertical direction during the clamping process, so that the workpiece always maintains a firmly clamped state during the laser engraving process, thereby ensuring the effect of laser engraving. However, the following deficiencies still exist in actual use: from a practical point of view, the workpiece needs to be flipped at an angle during laser engraving, and the device can only clamp and fix the workpiece, but cannot flip and change the angle of the workpiece.

[0004] Therefore, a clamping device for laser engraving is needed to solve the problem that the clamping device in the prior art cannot perform an angle flip on the workpiece. Utility Model Content

[0005] The purpose of the utility model is to provide a pressing device for laser engraving to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a clamping device for laser engraving, comprising a base plate, two support plates fixedly connected to the top of the base plate, the inner sides of the two support plates are fixedly connected with supporting grooves, the tops of the two supporting grooves are rotatably installed with first synchronous wheels, the inner sides of the two support plates near the top are rotatably connected with first rotating shafts, the inner sides of the two first rotating shafts are installed with hydraulic cylinders, the output ends of the two hydraulic cylinders are provided with clamping mechanisms, a second rotating shaft is rotatably connected between the inner sides of the two support plates, a servo motor corresponding to the second rotating shaft is fixedly connected to the outer side of one of the support plates, two second synchronous wheels are fixedly connected to the outer wall of the second rotating shaft, and synchronous belts are installed on the corresponding outer walls of the first synchronous wheel and the second synchronous wheel.

[0007] It should be noted in the solution that a plurality of shock-absorbing pads are fixedly connected to the bottom of the base plate.

[0008] It is further worth noting that a limiting track corresponding to the first synchronous wheel is arranged at the top of the supporting groove.

[0009] It should be further explained that the clamping mechanism includes a first connecting plate fixedly connected to the inner side of the first synchronous wheel, the top and bottom of the first connecting plate are rotatably connected to clamping rods, the inner ends of the two clamping rods are rotatably connected to connecting rods, a second connecting plate is rotatably connected between the two connecting rods, universal joints are installed at the ends of the two clamping rods, and clamping plates are installed at the inner ends of the two universal joints.

[0010] As a preferred implementation, the output end of the hydraulic cylinder is fixedly connected to the second connecting plate.

[0011] As a preferred embodiment, the inner walls of the two clamping plates are fixedly connected with soft protective pads.

[0012] As a preferred implementation manner, the output end of the servo motor passes through the support plate and is fixedly connected to the second rotating shaft.

[0013] Compared with the prior art, the clamping device for laser engraving provided by the utility model has at least the following beneficial effects:

[0014] (1) A servo motor is provided to drive the second rotating shaft to rotate, so that the second synchronous wheel rotates. Under the action of the synchronous belt, the first synchronous wheel drives the workpiece clamped by the clamping mechanism to flip and change the angle, so that the front and back sides of the workpiece can be engraved smoothly.

[0015] (2) By setting up a clamping mechanism, opening the hydraulic cylinder to drive its output end to contract, the second connecting plate contracts and drives the two clamping rods to rotate inward at the same time, so that the two clamping plates contract inward to clamp the workpiece, thereby preventing the workpiece from moving during engraving and improving the stability of the engraving work. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of the utility model from a first perspective;

[0017] Figure 2 This is a schematic diagram of the structure of the utility model from a second viewing angle;

[0018] Figure 3 This is a schematic diagram of the structure of the utility model from a third viewing angle;

[0019] Figure 4 It is a structural schematic diagram of the clamping mechanism of the utility model.

[0020] In the figure: 1, base plate; 2, support plate; 3, supporting groove; 4, first synchronous wheel; 5, first rotating shaft; 6, hydraulic cylinder; 7, clamping mechanism; 701, first connecting plate; 702, clamping rod; 703, connecting rod; 704, second connecting plate; 705, universal joint; 706, clamping plate; 8, second rotating shaft; 9, servo motor; 10, second synchronous wheel; 11, synchronous belt. DETAILED DESCRIPTION

[0021] The present invention will be further described below in conjunction with the embodiments.

[0022] See also Figure 1-4 The utility model provides a clamping device for laser engraving, including a base plate 1, two support plates 2 are fixedly connected to the top of the base plate 1, the inner sides of the two support plates 2 are fixedly connected with supporting grooves 3, the tops of the two supporting grooves 3 are rotatably installed with first synchronous wheels 4, the inner sides of the two support plates 2 near the top are rotatably connected with first rotating shafts 5, the inner sides of the two first rotating shafts 5 are installed with hydraulic cylinders 6, the output ends of the two hydraulic cylinders 6 are provided with clamping mechanisms 7, a second rotating shaft 8 is rotatably connected between the inner sides of the two support plates 2, a servo motor 9 corresponding to the second rotating shaft 8 is fixedly connected to the outer side of one of the support plates 2, two second synchronous wheels 10 are fixedly connected to the outer wall of the second rotating shaft 8, and synchronous belts 11 are installed on the corresponding outer walls of the first synchronous wheel 4 and the outer walls of the second synchronous wheel 10.

[0023] Further as Figure 1 , Figure 2 and Figure 3 As shown, it is worth explaining in detail that a plurality of shock-absorbing pads are fixedly connected to the bottom of the base plate 1, which play a role in shock absorption and stability, so that the base plate 1 always remains stable during the entire engraving process, thereby improving the stability of the device.

[0024] Further as Figure 1 , Figure 2 and Figure 3As shown, it is worth explaining in detail that a limiting track corresponding to the first synchronous wheel 4 is arranged on the top of the supporting groove 3, and the supporting groove 3 supports and limits the first synchronous wheel 4, so that the first synchronous wheel 4 can rotate flexibly on the top of the supporting groove 3.

[0025] Further as Figure 1 , Figure 2 and Figure 3 As shown, it is worth explaining in detail that the output end of the servo motor 9 passes through the support plate 2 and is fixedly connected to the second rotating shaft 8, ensuring that the servo motor 9 can drive the second rotating shaft 8 to rotate smoothly, thereby providing driving force for the angle flipping of the workpiece.

[0026] According to the above working process, it can be known that: by setting the servo motor 9 to drive the second rotating shaft 8 to rotate, the second synchronous wheel 10 rotates, and under the action of the synchronous belt 11, the first synchronous wheel 4 drives the workpiece clamped by the clamping mechanism 7 to flip and change the angle, so that the front and back sides of the workpiece can be engraved smoothly.

[0027] Further as Figure 4 As shown, it is worth explaining in detail that the clamping mechanism 7 includes a first connecting plate 701 fixedly connected to the inner side of the first synchronous wheel 4, the top and bottom of the first connecting plate 701 are rotatably connected to clamping rods 702, the inner ends of the two clamping rods 702 are rotatably connected to connecting rods 703, and a second connecting plate 704 is rotatably connected between the two connecting rods 703, and universal joints 705 are installed at the ends of the two clamping rods 702, and clamping plates 706 are installed at the inner ends of the two universal joints 705. By setting the clamping mechanism 7, the hydraulic cylinder 6 is opened to drive its output end to contract, so that the second connecting plate 704 contracts and drives the two clamping rods 702 to rotate inward at the same time, so that the two clamping plates 706 contract inward to clamp the workpiece, thereby avoiding the movement of the workpiece during engraving and improving the stability of the engraving work.

[0028] Further as Figure 4 As shown, it is worth explaining in detail that the output end of the hydraulic cylinder 6 is fixedly connected to the second connecting plate 704, so that the hydraulic cylinder 6 can drive the top of the second connecting plate 704 to contract, thereby completing the loosening and clamping of the workpiece.

[0029] Further as Figure 4 As shown, it is worth explaining in detail that the inner walls of the two clamping plates 706 are fixedly connected with soft protective pads, which protect the workpieces and prevent the workpieces from being damaged due to excessive force during clamping.

[0030] This solution has the following working process: in actual use, the workpiece to be welded is placed between the two clamping mechanisms 7, and the hydraulic cylinder 6 is turned on to drive its output end to contract, so that the second connecting plate 704 contracts and drives the two clamping rods 702 to rotate inward at the same time, so that the two clamping plates 706 contract inward to clamp the workpiece, and then cooperate with the laser engraving machine to perform engraving work. When one side of the engraving is completed, the servo motor 9 is turned on to drive the second rotating shaft 8 to rotate, so that the second synchronous wheel 10 rotates, and under the action of the synchronous belt 11, the first synchronous wheel 4 drives the workpiece clamped by the clamping mechanism 7 to flip and change the angle.

[0031] In summary: by setting the servo motor 9 to drive the second rotating shaft 8 to rotate, the second synchronous wheel 10 is rotated, and under the action of the synchronous belt 11, the first synchronous wheel 4 drives the workpiece clamped by the clamping mechanism 7 to flip and change the angle, so that the front and back sides of the workpiece can be smoothly engraved; by setting the clamping mechanism 7, the hydraulic cylinder 6 is opened to drive its output end to contract, so that the second connecting plate 704 contracts and drives the two clamping rods 702 to rotate inward at the same time, so that the two clamping plates 706 contract inward to clamp the workpiece, thereby avoiding the movement of the workpiece during engraving and improving the stability of the engraving work.

Claims

1. A clamping device for laser engraving, comprising a base plate (1), characterized in that: Two support plates (2) are fixedly connected to the top of the base plate (1), and the inner sides of the two support plates (2) are fixedly connected with supporting grooves (3), and the tops of the two supporting grooves (3) are rotatably mounted with first synchronous wheels (4). The inner sides of the two support plates (2) near the top are rotatably connected with first rotating shafts (5), and the inner sides of the two first rotating shafts (5) are installed with hydraulic cylinders (6), and the output ends of the two hydraulic cylinders (6) are provided with clamping mechanisms (7). A second rotating shaft (8) is rotatably connected between the inner sides of the two support plates (2), and a servo motor (9) corresponding to the second rotating shaft (8) is fixedly connected to the outer side of one of the support plates (2), and two second synchronous wheels (10) are fixedly connected to the outer wall of the second rotating shaft (8), and synchronous belts (11) are installed on the corresponding outer walls of the first synchronous wheel (4) and the second synchronous wheel (10).

2. A pressing device for laser engraving according to claim 1, characterized in that: A plurality of shock-absorbing pads are fixedly connected to the bottom of the base plate (1).

3. The pressing device for laser engraving according to claim 1, characterized in that: A limiting track corresponding to the first synchronous wheel (4) is arranged at the top of the supporting groove (3).

4. The pressing device for laser engraving according to claim 1, characterized in that: The clamping mechanism (7) comprises a first connecting plate (701) fixedly connected to the inner side of the first synchronous wheel (4); the top and bottom of the first connecting plate (701) are rotatably connected to clamping rods (702); the inner ends of the two clamping rods (702) are rotatably connected to connecting rods (703); a second connecting plate (704) is rotatably connected between the two connecting rods (703); universal joints (705) are installed at the ends of the two clamping rods (702); and clamping plates (706) are installed at the inner ends of the two universal joints (705).

5. The pressing device for laser engraving according to claim 4, characterized in that: The output end of the hydraulic cylinder (6) is fixedly connected to the second connecting plate (704).

6. The pressing device for laser engraving according to claim 4, characterized in that: The inner walls of the two clamping plates (706) are both fixedly connected with soft protective pads.

7. The pressing device for laser engraving according to claim 1, characterized in that: The output end of the servo motor (9) passes through the support plate (2) and is fixedly connected to the second rotating shaft (8).

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