Warm edge strip welding machine capable of achieving multi-face clamping

Abstract

The invention relates to manufacturing of metal cutting and welding equipment such as automatic and semi-automatic electric arc and plasma arc welding machines, in particular to the field of welding equipment, and particularly discloses a warm edge strip welding machine capable of achieving multi-face clamping, which comprises an operation table, a welding mechanism arranged on the operation table and two clamping mechanisms, the welding mechanism comprises a transmission part, a welding part and a welding base, the warm edge strip is placed on the welding base, the transmission part is used for transmitting the welding part to move up and down towards the welding base, and the welding part is used for welding the warm edge strip; the two clamping mechanisms are symmetrically arranged on the two sides of the welding base. By changing the distance between the two clamping mechanisms and the welding base, the welding angle of the two warm edge strips can be changed, the warm edge strips can be clamped and positioned, welding of the warm edge strips at different angles and any frame splicing angle is achieved, the limitation that in the prior art, only 90-degree frame splicing can be achieved is overcome, and the practicability of equipment welding is improved.

Description

Technical Field

[0001] This invention relates to the manufacture of metal cutting and welding equipment such as automatic and semi-automatic electric arc and plasma arc welding machines, and more specifically to the field of welding equipment, specifically to a warm edge strip welding machine that can clamp from multiple sides. Background Technology

[0002] Insulating glass, due to its excellent thermal insulation and sound insulation properties, is widely used in building curtain walls, high-speed trains, refrigerated display cases, and other fields. The warm edge spacer, as the core spacer material of insulating glass, directly determines the service life of the glass unit through its welding quality. The warm edge spacer is mainly composed of a stainless steel strip wrapped around a low thermal conductivity material (such as glass fiber reinforced nylon). In current technology, the warm edge spacer is typically manually positioned before welding. This manual positioning has low accuracy, resulting in large angular deviations after welding, which easily leads to stress concentration during assembly and reduces the sealing reliability of the insulating glass. Existing automatic welding machines can usually only perform conventional 90° welding on two warm edge spacers; they cannot accurately clamp and position other angles (such as 45°, 135°, etc.), resulting in limited adaptability. Summary of the Invention

[0003] The purpose of this invention is to provide a multi-faceted warm edge strip welding machine to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides a multi-faceted clamping warm edge strip welding machine, comprising: The operating table, the welding mechanism mounted on the operating table, and two clamping mechanisms; The welding mechanism includes a transmission part, a welding part, and a welding base. The warm edge strip is placed on the welding base. The transmission part is used to drive the welding part to move up and down on the welding base. The welding part is used to weld the warm edge strip. The two clamping mechanisms are symmetrically arranged on both sides of the welding base, and each can move relative to the welding base to change the included angle between the two clamping mechanisms and the welding base.

[0005] Preferably, the clamping mechanism includes a movable base, a rotary cylinder disposed on the top of the movable base, and a gripper cylinder disposed on the top of the rotary cylinder, wherein the gripper of the gripper cylinder clamps the warm edge strip from multiple sides.

[0006] Preferably, the operating table is provided with a guide groove for the two clamping mechanisms to move, and a sliding block is slidably connected in the guide groove. One end of the sliding block extends upward and is connected to the bottom of the moving seat.

[0007] Preferably, the guide groove is a cross-shaped guide groove, and the sliding block is a cross-shaped slider adapted to the cross-shaped guide groove.

[0008] Preferably, it further includes a linear drive mechanism, which includes a linear drive unit disposed at the bottom of the operating table and a connecting rod that is drively connected to the output end of the linear drive unit. The connecting rod has two opposing connecting ends, and the ends of the two connecting ends away from the linear drive unit are respectively connected to the two movable seats.

[0009] Preferably, the transmission unit includes: A support column is provided on the operating table, and the support column has a built-in vertical guide groove; A slider is slidably connected to the vertical guide groove. The slider is provided with a threaded through hole. One side of the slider passes through the vertical guide groove and is connected to the welding part. A lead screw, which is located in the vertical guide groove, with one end rotatably connected to the bottom of the vertical guide groove, and the other end passing through the threaded hole and the top of the support column from bottom to top; An output motor is mounted on the support column, and its output end is connected to the other end of the lead screw.

[0010] Preferably, the welding part includes an ultrasonic welding machine disposed on the slider, and the bottom of the ultrasonic welding machine is provided with a welding head.

[0011] Preferably, the welding mechanism further includes two angle fixtures detachably connected to the bottom of the welding head and the top of the welding base, respectively, with the two angle fixtures arranged opposite to each other.

[0012] Preferably, the angle fixture includes a mounting plate and an angle mold disposed on the mounting plate, the mounting plate being detachably mounted on the bottom of the welding head or the top of the welding base.

[0013] Preferably, the welding machine further includes a support mechanism for supporting the warm edge strip, the support mechanism including a support rod disposed on the operating table and a support plate disposed on the support rod, the support plate being arranged in a ring.

[0014] The beneficial effects of this invention are as follows:

[0015] By changing the distance between the two clamping mechanisms and the welding base, the welding angle of the two warm edge strips can be changed, and they can be clamped and positioned. This enables the welding of warm edge strips with arbitrary frame angles at different angles, overcoming the limitation of existing technology that can only be framed at 90°, and improving the practicality of the equipment welding.

[0016] Other features and advantages of the present invention will be described in detail in the following detailed description section. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the following detailed description to explain the invention, but do not constitute a limitation thereof. In the drawings: Figure 1 A rendering of a multi-faceted clamping warm edge strip welding machine according to an embodiment of the present invention is shown; Figure 2 A schematic diagram of a multi-faceted clamping warm edge strip welding machine according to an embodiment of the present invention is shown; Figure 3 A schematic diagram of the structure of the operating table according to an embodiment of the present invention is shown; Figure 4 A schematic diagram of the angle fixture structure of the present invention is shown; Figure 5 A schematic diagram of the bottom surface structure of the operating table according to an embodiment of the present invention is shown; Figure 6 A cross-sectional view along the sliding groove of one embodiment of the present invention is shown; Figure 7 The present invention is shown. Figure 6 Enlarged view of point A in the middle; Figure 8 A schematic diagram of the connection structure between the clamping mechanism and the linear drive mechanism according to an embodiment of the present invention is shown; Figure 9 A cross-sectional view along a vertical guide groove is shown in one embodiment of the present invention.

[0018] Explanation of reference numerals in the attached figures:

[0019] 1. Operating table; 2. Welding mechanism; 21. Transmission unit; 211. Support column; 2111. Vertical guide groove; 212. Slider; 213. Lead screw; 214. Output motor; 22. Welding unit; 221. Ultrasonic welding machine; 222. Welding head; 23. Welding base; 24. Angle fixture; 241. Mounting plate; 242. Angle mold; 3. Clamping mechanism; 301. Guide groove; 302. Sliding block; 31. Moving seat; 32. Rotary cylinder; 33. Gripper cylinder; 4. Linear drive mechanism; 41. Linear drive unit; 42. Connecting rod; 5. Support mechanism; 51. Support rod; 52. Support plate. Detailed Implementation

[0020] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0021] like Figures 1-9As shown, this embodiment provides a multi-faceted warm edge strip welding machine, including an operating table 1, a welding mechanism 2 disposed on the operating table 1, and two clamping mechanisms 3; the welding mechanism 2 includes a transmission part 21, a welding part 22, and a welding base 23, the warm edge strip is placed on the welding base 23, the transmission part 21 is used to drive the welding part 22 to move up and down towards the welding base 23, and the welding part 22 is used to weld the warm edge strip; the two clamping mechanisms 3 are symmetrically disposed on both sides of the welding base 23, and both can move relative to the welding base 23 to change the included angle between the two clamping mechanisms 3 and the welding base 23.

[0022] In this embodiment, with Figure 1 For example, the operating table 1 is rectangular, and the two clamping mechanisms 3 can move back and forth on the operating table 1. When it is necessary to switch between different welding angles, the two clamping mechanisms 3 can be moved back and forth to change the angle between the two clamping mechanisms 3 and the welding base 23. The line connecting these angles is based on the center of each structure. For example, with the center of the welding base 23 as point O and the centers of the two clamping mechanisms 3 as points AB, then AOB is the angle that needs to be changed. In specific operations, for some commonly used angles, such as 30°, 45°, 60°, 90°, 120°, etc., the positions can be marked on the operating table 1. In this way, when it is necessary to change the welding angle, the two clamping mechanisms 3 can be moved directly to the corresponding positions, making the operation more convenient. During the welding process, the welding angles of the two warm edge strips are first determined, then the positions of the two clamping mechanisms 3 are adjusted, and the welding positions of the two warm edge strips are aligned. The warm edge strips are then placed on the clamping mechanisms 3 and clamped. At this time, the welding positions of the two warm edge strips are located at the center of the welding base 23. Then, the welding part 22 is moved downward by the transmission mechanism 21 to weld the warm edge strip. The entire operation process is convenient and simple, and can adapt to different welding angles, greatly improving the practicality of the equipment. Moreover, the two clamping mechanisms 3 in this embodiment can also be set to move left and right, and are not on the same horizontal line as the welding base 23. The principle of changing the angle is similar to that of moving forward and backward, and will not be elaborated further here.

[0023] Furthermore, in this embodiment, to ensure operational comfort, a cabinet 11 of a certain height is provided at the bottom of the operating table 1. Adjustable casters can also be installed at the bottom of the cabinet 11 to facilitate movement of the entire device and improve its flexibility. An operation panel can also be configured on the cabinet 11 to control the operation of the entire welding machine.

[0024] Please refer to Figures 5-8The clamping mechanism 3 includes a movable base 31, a rotary cylinder 32 disposed on the top of the movable base 31, and a gripper cylinder 33 disposed on the top of the rotary cylinder 32. The gripper of the gripper cylinder 33 clamps the warm edge strip from multiple sides. In specific use, after the angle is determined and the clamping mechanism 3 moves to the corresponding position, the rotary cylinder 32 drives the gripper cylinder 33 to rotate, thereby corresponding to the welding angle. Then, the warm edge strip is placed on the gripper cylinder 33, and the gripper cylinder 33 clamps the warm edge strip. The rotary cylinder 33 allows the clamping mechanism 3 to correspond to the welding angle of the warm edge strip, maintaining the consistency of the welding angle and improving welding accuracy. The gripper cylinder 33 uses three-finger or multi-finger parallel grippers. Each finger block has a miniature ball screw-slide pair inside, so that the finger block can adapt to the cross-sectional profile of the warm edge strip during the clamping process. A 3-5mm thick POM or silicone elastic pad is pasted on the surface of the finger block to form a three-level stiffness chain of "soft-hard-soft". The silicone layer undergoes slight deformation, increasing the contact area and reducing the unit pressure; The POM layer provides moderate stiffness, limiting excessive deformation; The aluminum alloy substrate maintains overall rigidity to ensure repeatability and positioning accuracy.

[0025] This achieves "multi-faceted" clamping, avoiding stress concentration caused by line contact in traditional V-blocks. The rotary cylinder 32 has a built-in absolute encoder with a resolution of ≤0.01°, ensuring angular accuracy; the gripper cylinder 33 has built-in magnetostrictive displacement and pressure sensors to monitor the clamping force in real time, and immediately reduce the air pressure to prevent indentation if the force exceeds the threshold.

[0026] Preferably, the operating table 1 is provided with guide grooves 301 for the movement of the two clamping mechanisms 3. A sliding block 302 is slidably connected within the guide grooves 301, and one end of the sliding block 302 extends upward and connects to the bottom of the moving base 31. The guide grooves 301 and sliding blocks 302 ensure that the clamping mechanisms 3 can move smoothly. Preferably, the guide groove 301 is a cross-shaped guide groove, and the sliding block 302 is a cross-shaped slider adapted to the cross-shaped guide groove. The cross-shaped guide groove not only guides the movement of the clamping mechanism 3 but also provides support. Specifically, the cross-shaped guide groove has a double V-shaped symmetrical structure, forming four-point contact with the cross-shaped slider, equivalent to two sets of 45° guide rails connected in parallel, improving rigidity. The cross-shaped slider is made of copper-based inlaid graphite, with a dry friction coefficient μ=0.08, requiring no lubrication and reducing the frequency of downtime maintenance.

[0027] Please refer to Figure 8The welding machine in this embodiment also includes a linear drive mechanism 4. The linear drive mechanism 4 includes a linear drive unit 41 disposed at the bottom of the operating table 1 and a connecting rod 42 connected to the output end of the linear drive unit 41. The connecting rod 42 has two opposing connecting ends, and the ends of the two connecting ends away from the linear drive unit 41 are respectively connected to the two movable seats 31. Specifically, the linear drive unit 41 can be a common linear drive structure such as a cylinder, hydraulic cylinder, or electric push rod. The connecting rod 42 is a fork-shaped rod, and the two connecting ends are the two free ends of the fork-shaped rod. The extension and retraction of the linear drive unit 41 can synchronously drive the two clamping mechanisms 3 to move back and forth, thereby changing the clamping angle.

[0028] Of course, to improve the intelligence of the welding machine, an angle detector can also be set up to monitor the angle of the AOB in real time. When the angle needs to be changed, the linear drive mechanism 4 drives the two clamping mechanisms 3 to move. When the angle detector detects that the angle of the AOB is equal to the specified angle, it feeds back the data to the operation panel. The operation panel controls the linear drive mechanism 4 to stop working, thereby completing the angle change and achieving a higher degree of automation.

[0029] Please refer to Figures 1-4 as well as Figure 9 The transmission unit 21 includes a support column 211, a slider 212, a lead screw 213, and an output motor 214. The support column 211 is mounted on the operating table 1 and has a built-in vertical guide groove 2111. The slider 212 is slidably connected within the vertical guide groove 2111 and has a threaded through hole. One side of the slider 212 passes through the vertical guide groove 2111 and connects to the welding part 22. The lead screw 213 is located within the vertical guide groove 2111, with one end rotatably connected to the bottom of the groove and the other end passing through the threaded through hole and the top of the support column 211 from bottom to top. The output motor 214 is mounted on the support column 211, and its output end is connected to the other end of the lead screw 213. The lead screw 213 and output motor 214 form a "rotation-linear" conversion, using the transmission principle of a ball screw, resulting in high transmission accuracy. The vertical guide groove 2111 adopts a dovetail groove, and the slider 212 is a dovetail-shaped slider to eliminate lateral clearance and ensure that the perpendicularity of the weld joint is ≤0.05 mm. The protruding end of the dovetail-shaped slider extends into a dovetail groove to connect with the welding part 22, thereby driving the welding part 22 to move up and down to weld the warm edge strip. In addition, in order to maintain the smooth up and down movement of the welding part 22, two symmetrically arranged guide rails or guide grooves can be provided on the side of the support column 211, and sliders corresponding to the guide rails or guide grooves can be provided on the welding part 22.

[0030] Preferably, the welding part 22 includes an ultrasonic welding machine 221 disposed on the slider 212, and a welding head 222 is disposed at the bottom of the ultrasonic welding machine 221. In this embodiment, the ultrasonic welding machine 221 directly converts electrical energy into 20kHz mechanical vibration through a piezoelectric ceramic transducer, which is then focused and transmitted to the warm edge strip interface through the titanium alloy welding head. The ultrasonic welding method has high welding efficiency and does not produce light pollution.

[0031] Please refer to Figure 3 as well as Figure 4 The welding mechanism 2 further includes two angle fixtures 24 detachably connected to the bottom of the welding head 222 and the top of the welding base 23, respectively, with the two angle fixtures 24 arranged opposite to each other. Specifically, each angle fixture 24 includes a mounting plate 241 and an angle mold 242 disposed on the mounting plate 241. The mounting plate 241 is detachably mounted to the bottom of the welding head 222 or the top of the welding base 23. The angle mold 242 has V-shaped positioning grooves of different angles, which can position the welding part of the warm edge strip and can also adapt to different welding angles. The mounting plate 241 can be installed to the welding base 23 or the welding head 222 by bolt connection or electromagnetic lock, which is convenient for disassembly and assembly and improves replacement efficiency.

[0032] Preferably, the welding machine further includes a support mechanism 5 for supporting the warm edge strip. The support mechanism 5 includes a support rod 51 disposed on the operating table 1 and a support plate 52 disposed on the support rod 51. The support plate 52 is arranged in a ring shape. Since the warm edge strip is long and narrow, after clamping, different ends will tilt or droop due to the lever principle, which can easily lead to positioning errors. The support plate 52 can match the height of the clamping mechanism 3 so that the welding part, clamping part and end part of the warm edge strip are on the same horizontal plane, avoiding positioning errors caused by end tilting and improving welding efficiency.

[0033] In summary, the multi-faceted clamping warm strip welding machine of this embodiment can change the welding angle of the two warm edge strips and clamp and position them by changing the distance between the two clamping mechanisms 3 and the welding base 23. This enables the welding of warm edge strips with arbitrary frame angles at different angles, solving the limitation of the prior art that can only be framed at 90° and improving the practicality of the equipment welding.

[0034] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the specific details of the above embodiments. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solutions of the present invention, and these simple modifications all fall within the protection scope of the present invention. Furthermore, it should be noted that the various specific technical features described in the above embodiments can be combined in any suitable manner without contradiction. To avoid unnecessary repetition, the present invention will not describe the various possible combinations separately.

[0035] Furthermore, various different embodiments of the present invention can be combined in any way, as long as they do not violate the spirit of the present invention, they should also be regarded as the content disclosed by the present invention.

Claims

1. A multi-faceted clamping warm edge strip welding machine, characterized in that, include: The operating table (1), the welding mechanism (2) provided on the operating table (1), and the two clamping mechanisms (3); The welding mechanism (2) includes a transmission part (21), a welding part (22), and a welding base (23). The warm edge strip is placed on the welding base (23). The transmission part (21) is used to drive the welding part (22) to move up and down on the welding base (23). The welding part (22) is used to weld the warm edge strip. The two clamping mechanisms (3) are symmetrically arranged on both sides of the welding base (23), and both can move relative to the welding base (23) to change the included angle between the two clamping mechanisms (3) and the welding base (23).

2. The multi-faceted clamping warm edge strip welding machine according to claim 1, characterized in that, The clamping mechanism (3) includes a movable seat (31), a rotary cylinder (32) disposed on the top of the movable seat (31), and a gripper cylinder (33) disposed on the top of the rotary cylinder (32). The gripper of the gripper cylinder (33) clamps the warm edge strip from multiple sides.

3. The multi-faceted clamping warm edge strip welding machine according to claim 2, characterized in that, The operating table (1) is provided with a guide groove (301) for the two clamping mechanisms (3) to move. A sliding block (302) is slidably connected in the guide groove (301). One end of the sliding block (302) extends upward and is connected to the bottom of the moving seat (31).

4. The multi-faceted clamping warm edge strip welding machine according to claim 3, characterized in that, The guide groove (301) is a cross guide groove, and the sliding block (302) is a cross slider that is adapted to the cross guide groove.

5. The multi-faceted clamping warm edge strip welding machine according to claim 3, characterized in that, It also includes a linear drive mechanism (4), which includes a linear drive unit (41) disposed at the bottom of the operating table (1) and a connecting rod (42) connected to the output end of the linear drive unit (41). The connecting rod (42) has two opposite connecting ends, and the ends of the two connecting ends away from the linear drive unit (41) are respectively connected to the two movable seats (31).

6. The multi-faceted clamping warm edge strip welding machine according to claim 1, characterized in that, The transmission unit (21) includes: Support column (211), the support column (211) is set on the operating table (1), and the support column (211) has a built-in vertical guide groove (2111). The slider (212) is slidably connected in the vertical guide groove (2111). The slider (212) is provided with a threaded through hole. One side of the slider (212) passes through the vertical guide groove (2111) and is connected to the welding part (22). A lead screw (213) is located in the vertical guide groove (2111), one end of which is rotatably connected to the bottom of the vertical guide groove (2111), and the other end passes through the threaded hole and the top of the support column (211) from bottom to top. An output motor (214) is mounted on the support column (211), and its output end is connected to the other end of the lead screw (213) for transmission.

7. The multi-faceted clamping warm edge strip welding machine according to claim 6, characterized in that, The welding part (22) includes an ultrasonic welding machine (221) disposed on the slider (212), and a welding head (222) is disposed at the bottom of the ultrasonic welding machine (221).

8. The multi-faceted clamping warm edge strip welding machine according to claim 7, characterized in that: The welding mechanism (2) further includes two angle fixtures (24) that are detachably connected to the bottom of the welding head (222) and the top of the welding base (23), respectively, with the two angle fixtures (24) arranged opposite to each other.

9. The multi-faceted clamping warm edge strip welding machine according to claim 8, characterized in that, The angle fixture (24) includes a mounting plate (241) and an angle mold (242) disposed on the mounting plate (241). The mounting plate (241) can be detachably installed on the bottom of the welding head (222) or the top of the welding base (23).

10. The multi-faceted clamping warm edge strip welding machine according to any one of claims 1-9, characterized in that, The welding machine also includes a support mechanism (5) for supporting the warm edge strip. The support mechanism (5) includes a support rod (51) disposed on the operating table (1) and a support plate (52) disposed on the support rod (51). The support plate (52) is arranged in a ring shape.

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