Numerical control laser welding equipment with high stability

Abstract

Numerically-controlled laser welding equipment with high stability comprises a fixing seat and a fixing frame, the fixing frame comprises two opposite transverse guide rails, transverse driving mechanisms are mounted on the transverse guide rails, and the two transverse driving mechanisms are connected through longitudinal guide rails; a longitudinal driving mechanism and a laser welding device are mounted on the longitudinal guide rail; a guide groove is formed in a transverse guide rail, a driving belt is arranged in the guide groove, a transverse driving mechanism is arranged in the guide groove in a matched mode through a guide wheel, a driving motor is matched with the driving belt to achieve movement, mechanical vibration can be reduced through a toothed belt transmission mode, transmission is more stable, and the stability of the transverse driving mechanism during movement is improved; meanwhile, the longitudinal driving mechanism is inversely arranged, so that the driving motor and the laser welding device are located below the longitudinal guide rail, the gravity center is lowered, meanwhile, the stability of the longitudinal driving mechanism is improved, the laser welding stability is improved, and accurate welding is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of numerical control laser welding, in particular to a numerical control laser welding device with high stability. Background Art

[0002] Laser welding equipment is a high-end device widely used in industrial production. It melts and connects materials by focusing laser energy on the workpiece. CNC laser welding equipment is an advanced device that integrates CNC and laser welding technologies, enabling high-precision, high-efficiency, and high-quality welding operations.

[0003] Among the existing CNC laser welding equipment, reference can be made to a CNC gantry-type laser welding and marking machine disclosed in the Chinese utility patent application number CN202111507843.7, which includes a base frame, a gantry and an adsorption seat fixed to the top surface of the base frame, the adsorption seat being used to fix the metal base plate, an adjustment seat being installed on the top of the gantry, the bottom end of the adjustment seat being rotatably connected to a fixed arm, and the adjustment seat being used to drive the fixed arm to lift and rotate. The equipment rolls up one end of the side panel and places it into the storage part through the setting of a discharging mechanism, a storage part and a roller sleeve, and drives the fixed arm to rotate and move by controlling the gantry and the adjustment seat, so that the roller sleeve at the other end of the fixed plate moves along the outer contour of the metal base plate, so that the laser head is always facing the weld. The discharging mechanism replaces the manual alignment and discharge of the side panel, thereby realizing automatic welding of metal fonts with complex shapes, which is convenient to use.

[0004] However, in the above structure, mechanical vibration may occur in the process of driving the laser head to move by the vertical drive rail and the horizontal drive rail. This vibration may cause the laser head to shake, thereby affecting the welding accuracy.

[0005] At the same time, since the laser head is installed below the vertical drive rail, and the vertical drive rail is installed on the support rod, in order to provide sufficient installation space for the laser head, the support rod needs to be extended upward to a certain height to erect the vertical drive rail. The transverse drive rail drives the laser head to move transversely by driving the support rod. During the movement, since the support rod raises the laser head too high, it may also cause shaking or shaking. Therefore, the accuracy of the welding stroke cannot be guaranteed during the laser welding process, which affects the welding effect and makes it impossible to achieve high-precision laser welding. Utility Model Content

[0006] In order to overcome the deficiencies of the prior art, the utility model provides a CNC laser welding device with high stability.

[0007] The technical solution adopted by the utility model to solve its technical problems is:

[0008] A numerically controlled laser welding device with high stability, comprising a fixed seat and a fixed frame. The fixed frame includes two opposite transverse guide rails, and there are four groups of fixed seats which are respectively arranged at the end faces of the two transverse guide rails. It also includes a transverse driving mechanism installed on the two transverse guide rails, and the two groups of transverse driving mechanisms are connected by a longitudinal guide rail. It further includes a longitudinal driving mechanism installed on the longitudinal guide rail and a laser welder installed on the longitudinal driving mechanism.

[0009] The transverse driving mechanism includes mounting plates arranged on both sides of the transverse guide rail, at least two groups of guide wheels connected between the two mounting plates, a driving motor fixed on the mounting plate, and a driving belt cooperating between the driving motor and the transverse guide rail. A driving gear is provided on the driving motor, and the driving gear extends into the inner sides of the two mounting plates and is located between the two groups of guide wheels. The driving belt is a toothed belt, and the toothed surface on the driving belt meshes with the driving gear, and the smooth surface on the driving belt bypasses the guide wheels on both sides of the driving gear.

[0010] Further, the installation position of the driving gear on the mounting plate is higher than that of the guide wheel, and the wrap angle of the driving belt meshing with the driving gear is greater than 120°.

[0011] Further, guiding grooves for guiding the guide wheels are provided at the top and bottom of the transverse guide rail, and the guide wheels are in rolling fit in the guiding grooves to limit the transverse driving mechanism from moving along the direction of the guiding grooves.

[0012] Further, there are four groups of guide wheels between the two mounting plates, and the four groups of guide wheels are in pairs and respectively abut against the guiding grooves at the top and bottom of the transverse driving mechanism.

[0013] In the present utility model, a fixing part extends upward from the top of the mounting plate located outside the transverse guide rail, and the longitudinal guide rail is horizontally installed between the two fixing parts. The structure of the longitudinal guide rail is the same as that of the transverse guide rail; the structure of the longitudinal driving mechanism is the same as that of the transverse driving mechanism.

[0014] Further, the driving belt and the driving motor are installed at the bottom of the longitudinal guide rail, and the two ends of the driving belt are adjustably installed at the two ends of the guiding groove at the bottom of the longitudinal guide rail. The laser welder is installed on the mounting plate on the side opposite to the driving motor on the longitudinal driving mechanism.

[0015] In the present utility model, adjusting mechanisms for adjusting the tightness of the driving belt are provided at both ends of the driving belt. The adjusting mechanism includes an adjusting seat in limit fit in the guiding groove, a clamping block clamped at the end of the driving belt, and an adjusting rod connected to the adjusting seat. The clamping block is fixed on the adjusting seat by bolts. The adjusting rod passes through the fixed seat from the outside of the fixed seat and is connected to the adjusting seat. The adjusting rod is in threaded fit with the fixed seat and the adjusting seat. Rotating the adjusting rod can drive the adjusting seat to move along the guiding groove.

[0016] Further, the guiding groove is a T-shaped groove, and the cross-section of the adjusting seat is a T-shaped cross-section.

[0017] The utility model has the following advantages and beneficial effects:

[0018] A guiding groove is arranged on the transverse guide rail, a driving belt is arranged in the guiding groove, the transverse driving mechanism is matched with a guide wheel in the guiding groove, and the movement is realized by the cooperation of a driving motor and the driving belt. The transmission mode of the toothed belt can reduce mechanical vibration, make the transmission more stable, and improve the stability of the transverse driving mechanism during movement; at the same time, the longitudinal driving mechanism is arranged upside down, so that the driving motor and the laser welder are located below the longitudinal guide rail, which reduces the center of gravity and improves the stability of the longitudinal driving mechanism, thereby improving the smoothness of laser welding and realizing precise welding. Description of the Drawings

[0019] The following further describes the utility model in conjunction with the drawings and embodiments:

[0020] Figure 1 It is a schematic diagram of the laser welding equipment in this embodiment;

[0021] Figure 2 It is a schematic diagram of the transverse driving mechanism in this embodiment;

[0022] Figure 3 It is a schematic diagram of the adjusting mechanism in this embodiment. Specific Embodiments

[0023] To make the objectives, technical solutions, and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. The utility model is not limited to the following embodiments.

[0024] Such as Figures 1 to 3As shown in the figure, this embodiment discloses a numerically controlled laser welding device with high stability, including a fixed base 1 and a square fixed frame 2. The fixed frame 2 is connected by four interconnected profile frames. Among them, two opposite frames of the fixed frame 2 are set as transverse guide rails 21. There are four groups of fixed bases 1, which are respectively arranged at the four corners of the fixed frame 2 corresponding to the end faces of the two transverse guide rails 21. It also includes a transverse driving mechanism 3 installed on the two transverse guide rails 21. The two groups of transverse driving mechanisms 3 are connected by a longitudinal guide rail 4 perpendicular to the transverse guide rail 21. It further includes a longitudinal driving mechanism 5 installed on the longitudinal guide rail 4 and a laser welder 6 installed on the longitudinal driving mechanism 5. The transverse driving mechanism 3 drives the laser welder 6 to move along the direction of the transverse guide rail 21, and the longitudinal driving mechanism 5 drives the laser welder 6 to move along the direction of the longitudinal guide rail 4. Specifically, the transverse driving mechanism 3 includes mounting plates 31 arranged on both sides of the transverse guide rail 21, at least two groups of guide wheels 32 connected between the two mounting plates 31, a driving motor 33 fixed on the mounting plate 31, and a driving belt 34 cooperating between the driving motor 33 and the transverse guide rail 21. A guiding groove 210 for guiding the guide wheels 32 is provided at the top of the transverse guide rail 21. The guide wheels 32 are in rolling cooperation in the guiding groove 210 to limit the movement of the transverse driving mechanism 3 along the direction of the guiding groove 210. The driving motor 33 is installed on the mounting plate 31 outside the transverse guide rail 21, and a driving gear 330 is provided on the driving shaft of the driving motor 33. The driving gear 330 extends into the inner sides of the two mounting plates 31 and is located between the two groups of guide wheels 32. The driving belt 34 is a toothed belt, and the toothed surface on the driving belt 34 meshes with the driving gear 330. The smooth surface of the driving belt 34 bypasses the guide wheels 32 on both sides of the driving gear 330. In order to improve the cooperation effect between the driving belt 34 and the driving gear 330, the installation height of the driving gear 330 on the mounting plate 31 is higher than that of the guide wheels 32, so that the meshing angle of the driving belt 34 with the driving gear 330 is greater than 120°, improving the meshing stability. At the same time, the two ends of the driving belt 34 are adjustably installed at both ends of the guiding groove 210, and the stability of the transverse driving mechanism 3 during movement can also be improved by adjusting the tightness of the driving belt 34. Preferably, in order to further improve the stability of the transverse driving mechanism 3, four groups of guide wheels 32 are provided between the two mounting plates 31. The four groups of guide wheels 32 are divided into two groups in pairs and respectively abut against the top and bottom of the transverse driving mechanism 3. Correspondingly, guiding grooves 210 for guiding the guide wheels 32 are also provided at the bottom of the transverse guide rail 21.

[0025] In this embodiment, on the two sets of the transverse driving mechanisms 3, a fixing portion 35 extends upward from the top of the mounting plate 31 located outside the transverse guide rail 21. The longitudinal guide rail 4 is horizontally fixed between the two fixing portions 35. Preferably, the end face of the longitudinal guide rail 4 abuts against the fixing portion 35, and is fixed by at least two bolts passing through the fixing portion 35 from the outside of the fixing portion 35 and connecting with the end face of the longitudinal guide rail 4, thus ensuring the connection stability of the longitudinal guide rail 4. At the same time, in order to reduce the processing cost of parts, the structure of the longitudinal guide rail 4 is the same as that of the transverse guide rail 21.

[0026] Furthermore, since the mounting plate 31 extends upward by a certain height, when the longitudinal driving mechanism 5 is mounted on the longitudinal guide rail 4, the center of gravity needs to be lowered to ensure stability. Specifically, the structure of the longitudinal driving mechanism 5 is basically the same as that of the transverse driving mechanism 3, the difference being that the driving belt 34 and the driving motor 33 are mounted at the bottom of the longitudinal guide rail 4. The two ends of the driving belt 34 are adjustably mounted at the two ends of the guide groove 210 at the bottom of the longitudinal guide rail 4, thereby achieving the purpose of lowering the center of gravity. In order to ensure the left - right balance of the longitudinal driving mechanism 5, the laser welder 6 is mounted on the side of the longitudinal driving mechanism 5 opposite to the driving motor 33. The driving motors 33 on the transverse driving mechanism 3 and the longitudinal driving mechanism 5 are controlled by connecting with a computer, thereby realizing CNC programming.

[0027] In this embodiment, both ends of the driving belt 34 are provided with an adjusting mechanism 20 for adjusting the tightness of the driving belt 34. The adjusting mechanism 20 includes an adjusting seat 201 which is limited and fitted in the guide groove 210, a clamping block 202 clamped at the end of the driving belt 34, and an adjusting rod 203 connected to the adjusting seat 201. The clamping block 202 is fixed on the adjusting seat 201 by bolts. The adjusting rod 203 passes through the fixing seat 1 from the outside of the fixing seat 1 and is connected with the adjusting seat 201. The adjusting rod 203 is in threaded cooperation with the fixing seat 1 and the adjusting seat 201. By rotating the adjusting rod 203, the adjusting seat 201 can be driven to move along the guide groove 210, thereby adjusting the tightness of the driving belt 34.

[0028] Furthermore, in order to limit the adjusting block in the guide groove 210, the guide groove 210 is set as a T - shaped groove, and the cross - section of the adjusting seat 201 is set as a T - shaped cross - section.

[0029] What is described above in this specification is only an example of the present utility model. Those skilled in the technical field to which the present utility model belongs can make various modifications or supplements to the described specific embodiments or use similar ways to replace them. As long as it does not deviate from the content of this specification of the present utility model or exceed the scope defined by this claim book, it should belong to the protection scope of the present utility model.

Claims

1. A numerically controlled laser welding device with high stability, comprising a fixed seat (1) and a fixed frame (2). The fixed frame (2) includes two opposite transverse guide rails (21). There are four groups of the fixed seats (1) which are respectively arranged at the end face positions of the two transverse guide rails (21). It further includes a transverse driving mechanism (3) installed on the two transverse guide rails (21). The two groups of transverse driving mechanisms (3) are connected by a longitudinal guide rail (4). It also includes a longitudinal driving mechanism (5) installed on the longitudinal guide rail (4) and a laser welder (6) installed on the longitudinal driving mechanism (5). It is characterized in that: The transverse driving mechanism (3) includes mounting plates (31) arranged on both sides of the transverse guide rail (21), at least two groups of guide wheels (32) connected between the two mounting plates (31), a driving motor (33) fixed on the mounting plate (31), and a driving belt (34) cooperating between the driving motor (33) and the transverse guide rail (21). A driving gear (330) is provided on the driving motor (33). The driving gear (330) extends into the inner sides of the two mounting plates (31) and is located between the two groups of guide wheels (32). The driving belt (34) is a toothed belt. The toothed surface on the driving belt (34) meshes with the driving gear (330), and the smooth surface on the driving belt (34) bypasses the guide wheels (32) on both sides of the driving gear (330).

2. The numerically controlled laser welding equipment with high stability according to claim 1, characterized in that: The installation position of the driving gear (330) on the mounting plate (31) is higher than that of the guide wheel (32), and the wrap angle of the driving belt (34) meshing with the driving gear (330) is greater than 120°.

3. The numerically controlled laser welding equipment with high stability according to claim 1, characterized in that: Guide grooves (210) for guiding the guide wheels (32) are provided at the top and bottom of the transverse guide rail (21). The guide wheels (32) are in rolling fit in the guide grooves (210) to limit the transverse driving mechanism (3) from moving along the direction of the guide grooves (210).

4. A numerically controlled laser welding device with high stability according to claim 3, characterized in that: There are four groups of guide wheels (32) between the two mounting plates (31). The four groups of guide wheels (32) are divided into two groups in pairs and respectively abut against the guide grooves (210) at the top and bottom of the transverse driving mechanism (3).

5. A numerically controlled laser welding device with high stability according to claim 1, characterized in that: A fixing part (35) extends upward from the top of the mounting plate (31) located outside the transverse guide rail (21). The longitudinal guide rail (4) is horizontally installed between the two fixing parts (35). The structure of the longitudinal guide rail (4) is the same as that of the transverse guide rail (21). The structure of the longitudinal driving mechanism (5) is the same as that of the transverse driving mechanism (3).

6. The numerically controlled laser welding equipment with high stability according to claim 3, characterized in that: The driving belt (34) and the driving motor (33) are installed at the bottom of the longitudinal guide rail (4). The two ends of the driving belt (34) are adjustably installed at the two ends of the guide groove (210) at the bottom of the longitudinal guide rail (4). The laser welder (6) is installed on the mounting plate (31) on the side of the longitudinal driving mechanism (5) opposite to the driving motor (33).

7. A numerically controlled laser welding device with high stability according to claim 3, characterized in that: Both ends of the drive belt (34) are provided with an adjusting mechanism (20) for adjusting the tightness of the drive belt (34). The adjusting mechanism (20) includes an adjusting seat (201) limited and fitted in a guide groove (210), a clamping block (202) clamped at the end of the drive belt (34), and an adjusting rod (203) connected to the adjusting seat (201). The clamping block (202) is fixed to the adjusting seat (201) by bolts. The adjusting rod (203) passes through the fixing seat (1) from the outside of the fixing seat (1) and then is connected to the adjusting seat (201). The adjusting rod (203) is in threaded fit with the fixing seat (1) and the adjusting seat (201). Rotating the adjusting rod (203) can drive the adjusting seat (201) to move along the guide groove (210).

8. The numerically controlled laser welding equipment with high stability according to claim 7, characterized in that: The guide groove (210) is provided as a T-shaped groove, and the cross-section of the adjusting seat (201) is provided as a T-shaped cross-section.

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