Welding machine

Abstract

The utility model belongs to the technical field of laser welding, and particularly relates to a welding machine which comprises a machine frame, a welding mechanism, a machine cover, a first movable door, a feeding mechanism and a driving mechanism, the welding mechanism and the machine cover are arranged on the machine frame, and the welding mechanism is located in the machine cover. The first movable door is opened or closed relative to the machine cover so that the machine cover can be switched between an opening state and a sealing state, when the machine cover is in the opening state, the feeding mechanism can freely enter and exit the machine cover, the feeding mechanism is in driving connection with the driving mechanism, the driving mechanism drives the feeding mechanism to enter and exit the machine cover, and the feeding mechanism is used for containing workpieces when located outside the machine cover. And when the welding mechanism welds the workpiece on the feeding mechanism, the hood is in a sealed state. Through the arrangement, the feeding operation can be facilitated, the original sealing structure of the hood is ensured, the safety of operators is ensured, and meanwhile, a protective grating does not need to be additionally arranged.

Description

Technical Field

[0001] The utility model belongs to the technical field of laser welding and specifically relates to a welding machine Background Art

[0002] CN207668707U discloses a laser welding device, which includes a frame, a feeding mechanism arranged on the frame, and a welding mechanism arranged above the feeding mechanism. The frame is also provided with a feed port for the workpiece to be transported through; the hood is used to protect the laser welding device to prevent dust from entering and being damaged by impact. The hood 20 is used to protect the laser welding device to prevent dust from entering and being damaged by impact. The conveying section of the feeding mechanism is arranged at the feed port outside the hood, which is convenient for loading operations, but the opening of the feed port will destroy the original sealing structure of the hood, resulting in reduced sealing and affecting the welding quality. And as the size of the processed workpiece increases, the larger the feed port required to be opened, the worse the sealing of the hood becomes. At the same time, due to the larger the feed port opened, in order to ensure the safety of the operator, it is a very important measure to add a protective grating in the operating area near the feed port. Utility Model Content

[0003] In view of the deficiencies in the prior art, the utility model provides a welding machine on one hand, which comprises a frame, a welding mechanism, a hood, a first movable door, a feeding mechanism and a driving mechanism. The welding mechanism and the hood are arranged on the frame, the welding mechanism is located in the hood, the first movable door is opened or closed relative to the hood so that the hood can switch between an open state and a sealed state, and the hood is in an open state for the feeding mechanism to freely enter and exit the hood, the feeding mechanism is drivingly connected to the driving mechanism, and the driving mechanism drives the feeding mechanism to enter and exit the hood, and the feeding mechanism is used to place a workpiece when it is located outside the hood, and the hood is in a sealed state when the welding mechanism welds the workpiece on the feeding mechanism.

[0004] Preferably, the first movable door drive and the feeding mechanism are both connected to the same driving mechanism so that the two maintain a linkage state; driven by the driving mechanism, the feeding mechanism enters the hood from outside the hood and drives the first movable door to close the hood, so that the hood is in a sealed state; or driven by the driving mechanism, the hood is opened and the feeding mechanism moves from inside the hood to outside the hood.

[0005] Preferably, a feed port is also provided on the hood, and the feed port is arranged in the Y direction. The feed port cooperates with the first movable door, and the feeding mechanism can freely enter and exit the hood through the feed port. The driving mechanism includes a first cylinder and a connecting slide rail. The output end of the first cylinder is connected to the connecting slide rail, and drives the connecting slide rail to move along the Y direction. The end of the connecting slide rail away from the first cylinder is respectively driven and connected to the feeding mechanism and the first movable door, and the feeding mechanism is located on the inner side of the first movable door. The first cylinder drives the first movable door and the feeding mechanism to move along the Y direction through the connecting slide rail; the first movable door is opened or closed relative to the feed port so that the hood can switch between an open state and a sealed state.

[0006] Preferably, the welding machine also includes a second movable door and a door driving cylinder, one end of the second movable door is hinged on the machine cover, and the end of the second movable door away from the hinge is connected to the output end of the door driving cylinder; under the drive of the door driving cylinder, the second movable door is opened or closed relative to the feed port; when the second movable door is opened relative to the feed port, maintenance can be carried out inside the machine cover.

[0007] Preferably, a quartz glass pressure plate is also arranged in the hood, and the quartz glass pressure plate is located in the moving direction of the feeding mechanism, and the laser of the welding mechanism can penetrate the quartz glass pressure plate. The driving mechanism can drive the feeding mechanism to move below the quartz glass pressure plate, and the feeding mechanism is also provided with a second cylinder, and the second cylinder can drive the feeding mechanism along the Z direction to approach or move away from the quartz glass pressure plate.

[0008] Preferably, the feeding mechanism is provided with a feeding platform, an outer mold body movable connecting plate and an inner mold body, the feeding platform is connected to the driving mechanism, the outer mold body movable connecting plate and the inner mold body are arranged on the feeding platform, the outer mold body movable connecting plate is provided with a positioning hole for positioning the workpiece, the positioning hole extends along the Z direction and passes through the upper and lower surfaces of the outer mold body movable connecting plate, the upper end of the inner mold body is arranged in the positioning hole, the upper end surface of the inner mold body supports the workpiece, the inner mold body and the outer mold body movable connecting plate are relatively telescopically movable along the Z direction, so that the workpiece can move up and down relative to the positioning hole.

[0009] Preferably, the feeding mechanism includes a feeding platform, an outer mold body movable connecting plate, an inner mold body, a spring and a second cylinder, the outer mold body movable connecting plate and the feeding platform are respectively connected to the upper and lower ends of the spring, the second cylinder and the inner mold body are installed on the feeding platform, the second cylinder drives the outer mold body movable connecting plate to move up and down, the outer mold body movable connecting plate is also provided with a positioning hole, and the upper end of the inner mold body is arranged in the positioning hole.

[0010] Preferably, the welding mechanism is provided with a laser head, an X-motion axis, a Y-motion axis and a Z-motion axis, and the X-motion axis, the Y-motion axis and the Z-motion axis respectively drive the laser head to move along the X-direction, the Y-direction and the Z-direction, and the X-motion axis, the Y-motion axis, and a quartz glass pressure plate are also set up in the machine cover, the laser head can be moved above the quartz glass pressure plate, and the laser head welds the workpiece transported by the feeding mechanism to the bottom of the quartz glass pressure plate.

[0011] Preferably, a gantry is also mounted on the frame, an X motion axis is arranged on the gantry, a Y motion axis is fixedly mounted on the output end of the X motion axis, a Z motion axis is arranged on the output end of the Y motion axis, and a laser head is arranged on the output end of the Z motion axis. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The above and other purposes, features and advantages of the present invention will become clearer through a more specific description of the preferred embodiments of the present invention shown in the accompanying drawings. The same reference numerals indicate the same parts in all the accompanying drawings, and the accompanying drawings are not deliberately scaled to the actual size, but the focus is on illustrating the main purpose of the present invention.

[0013] Figure 1 A structural schematic diagram of a welding machine provided in an embodiment;

[0014] Figure 2 for Figure 1 A cross-sectional view of

[0015] Figure 3 for Figure 2 Partial schematic diagram;

[0016] Figure 4 A schematic diagram of the structure when the first movable door provided in the embodiment is in a closed state;

[0017] Figure 5 A schematic diagram of the structure when the first movable door provided in the embodiment is in an open state;

[0018] Figure 6 A schematic structural diagram of a feeding mechanism provided in an embodiment.

[0019] Figure symbols: frame 100, machine cover 101, feed port 102, first movable door 103, second movable door 104, door driving cylinder 105, welding mechanism 106, laser head 107, X-motion axis 108, Y-motion axis 109, Z-motion axis 110, gantry 111, driving mechanism 112, first cylinder 113, guide slider 114, connecting slide rail 115, feeding mechanism 116, feeding platform 117, outer mold body movable connecting plate 118, inner mold body 119, spring 120, second cylinder 121, quartz glass pressure plate 122, workpiece 123. DETAILED DESCRIPTION

[0020] In order to facilitate the understanding of the present invention, a more comprehensive description of the present invention will be given below with reference to the relevant drawings.

[0021] It should be noted that when an element is considered to be "connected" to another element, it may be directly connected to another element and integrated therewith, or there may be an intermediate element at the same time. The terms "installed", "one end", "the other end" and similar expressions used herein are for illustrative purposes only.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art. The terms used in the specification herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0023] The utility model provides a welding machine, which comprises a frame 100, a welding mechanism 106, a hood 101, a first movable door 103, a feeding mechanism 116 and a driving mechanism 112. The welding mechanism 106 and the hood 101 are arranged on the frame 100, the welding mechanism 106 is located in the hood 101, the first movable door 103 is opened or closed relative to the hood 101 so that the hood 101 can switch between an open state and a sealed state. When the hood 101 is in the open state, the feeding mechanism 116 can freely enter and exit the hood 101. The feeding mechanism 116 is drivingly connected to the driving mechanism 112, and the driving mechanism 112 drives the feeding mechanism 116 to enter and exit the hood 101. When the feeding mechanism 116 is located outside the hood 101, it is used to place a workpiece 123. When the welding mechanism 106 welds the workpiece 123 on the feeding mechanism 116, the hood 101 is in a sealed state.

[0024] The above arrangement can facilitate the feeding operation, ensure the original sealing structure of the machine cover 101, ensure the safety of the operator, and eliminate the need to add a protective grating.

[0025] In a preferred embodiment, the first movable door 103 and the feeding mechanism 116 are both connected to the same driving mechanism 112, so that the two remain in a linked state; driven by the driving mechanism 112, the feeding mechanism 116 enters the hood 101 from outside the hood 101, and drives the first movable door 103 to close the hood 101, so that the hood 101 is in a sealed state; or driven by the driving mechanism 112, the hood 101 is opened, and the feeding mechanism 116 moves from inside the hood 101 to outside the hood 101.

[0026] The driving of the first movable door 103 and the feeding mechanism 116 are kept in a linked state, so that the opening state of the hood 101 and the sealing state of the hood 101 are associated with the conveying state of the feeding mechanism 116, thereby optimizing the process of the welding machine and improving the welding efficiency.

[0027] In a preferred embodiment, a feed port 102 is also provided on the hood 101, and the feed port 102 is arranged in the Y direction. The feed port 102 cooperates with the first movable door 103, and the feeding mechanism 116 can freely enter and exit the hood 101 through the feed port 102. The driving mechanism 112 includes a first cylinder 113 and a connecting slide rail 115. The output end of the first cylinder 113 is connected to the connecting slide rail 115, and drives the connecting slide rail 115 to move along the Y direction. The end of the connecting slide rail 115 away from the first cylinder 113 is respectively driven and connected to the feeding mechanism 116 and the first movable door 103, and the feeding mechanism 116 is located on the inner side of the first movable door 103. The first cylinder 113 drives the first movable door 103 and the feeding mechanism 116 to move along the Y direction through the connecting slide rail 115; the first movable door 103 is opened or closed relative to the feed port 102 so that the hood 101 can switch between an open state and a sealed state.

[0028] The feeding mechanism 116 is located inside the first movable door 103, which means that the first movable door 103 is closer to the inside of the machine cover 101. The X direction, Y direction and Z direction refer to left and right, front and back, and up and down directions when facing one end of the first movable door 103 of the welding machine.

[0029] In a preferred embodiment, the welding machine also includes a second movable door 104 and a door driving cylinder 105, one end of the second movable door 104 is hinged on the machine cover 101, and the end of the second movable door 104 away from the hinge is connected to the output end of the door driving cylinder 105; under the drive of the door driving cylinder 105, the second movable door 104 is opened or closed relative to the feed port 102; when the second movable door 104 is opened relative to the feed port 102, maintenance can be carried out inside the machine cover 101.

[0030] Maintenance means: after the second movable door 104 is opened, the operator performs maintenance on the internal devices through the hood 101, such as repairing and maintaining the laser head 107, etc.; or after welding, the second movable door 104 is opened to discharge the post-welding fumes inside; of course, it also includes daily maintenance of the internal devices. Figure 1 and Figure 2It is shown that the hood 101 is also provided with a feed port 102, and the first movable door 103 can be opened and closed at the lower end of the feed port 102; the second movable door 104 can be opened and closed at the upper end of the feed port 102; the two can seal the feed port 102 together. When loading and welding, the two movable doors are first closed, and then the first movable door 103 moves back and forth in the Y direction, so that the hood 101 can switch between an open state and a sealed state. In the open state, the feeding mechanism 116 is outside the hood 101, and the workpiece 123 can be placed on the feeding mechanism 116; in the sealed state, the feeding mechanism 116 is inside the hood 101, and the laser head 107 can weld the workpiece 123 on the feeding mechanism 116. Further, one end of the door body driving cylinder 105 is installed on the hood 101, and the output rod of the door body driving cylinder 105 can move telescopically, driving the second movable door 104 to rotate around the hinge.

[0031] In a preferred embodiment, a quartz glass pressure plate 122 is also set in the machine cover 101, and the quartz glass pressure plate 122 is located in the moving direction of the feeding mechanism 116. The laser of the welding mechanism 106 can penetrate the quartz glass pressure plate 122. The driving mechanism 112 can drive the feeding mechanism 116 to move below the quartz glass pressure plate 122. The feeding mechanism 116 is also provided with a second cylinder 121, and the second cylinder 121 can drive the feeding mechanism 116 along the Z direction to approach or move away from the quartz glass pressure plate 122.

[0032] After the feeding mechanism 116 moves to the bottom of the quartz glass platen 122, when welding is required, the second cylinder 121 drives the feeding mechanism 116 and the workpiece 123 to move toward the quartz glass platen 122, and presses the workpiece 123 between the feeding mechanism 116 and the quartz glass platen 122. The laser of the laser head 107 can directly penetrate the quartz glass platen 122 with less loss.

[0033] In a preferred embodiment, the feeding mechanism 116 is provided with a feeding platform 117, an outer mold body movable connecting plate 118 and an inner mold body 119. The feeding platform 117 is connected to the driving mechanism 112, and the outer mold body movable connecting plate 118 and the inner mold body 119 are arranged on the feeding platform 117. A positioning hole for positioning the workpiece 123 is opened on the outer mold body movable connecting plate 118. The positioning hole extends along the Z direction and passes through the upper and lower surfaces of the outer mold body movable connecting plate 118. The upper end of the inner mold body 119 is arranged in the positioning hole. The upper end surface of the inner mold body 119 supports the workpiece 123. The inner mold body 119 and the outer mold body movable connecting plate 118 move relative to each other in the Z direction, so that the workpiece 123 can move up and down relative to the positioning hole.

[0034] The feeding platform 117 is fixedly connected to the connecting slide rail 115 connected to the driving mechanism 112, and is driven by the connecting slide rail 115 to move along the Y direction. When the workpiece 123 is transported to the bottom of the quartz glass pressing plate 122, the feeding mechanism 116 moves upward and presses against the lower surface of the quartz glass pressing plate 122, so that the part of the upper end of the workpiece 123 protruding from the upper surface of the outer mold body movable connecting plate 118 can be retracted downward, which is convenient for the fixed positioning and processing of the workpiece 123. Figure 4 and Figure 5 An embodiment of two connecting slide rails 115 is shown, wherein guide sliders 114 are respectively provided at the front and rear ends of the two connecting slide rails 115, the guide sliders 114 and the connecting slide rails 115 are slidably connected, the guide sliders 114 are fixedly mounted on the frame 100, and the guide sliders 114 are used to ensure that the connecting slide rails 115 move along the Y direction (front and rear direction).

[0035] In a preferred embodiment, the feeding mechanism 116 includes a feeding platform 117, an outer mold body movable connecting plate 118, an inner mold body 119, a spring 120 and a second cylinder 121. The outer mold body movable connecting plate 118 and the feeding platform 117 are respectively connected to the upper and lower ends of the spring 120, the second cylinder 121 and the inner mold body 119 are installed on the feeding platform 117, and the second cylinder 121 drives the outer mold body movable connecting plate 118 to move up and down. A positioning hole is also provided on the outer mold body movable connecting plate 118, and the upper end of the inner mold body 119 is arranged in the positioning hole.

[0036] When the outer mold body movable connecting plate 118 moves and presses against the lower surface of the quartz glass pressing plate 122, the portion of the upper end of the workpiece 123 protruding from the upper surface of the outer mold body movable connecting plate 118 can be retracted downward, and the spring 120 can play a buffering role.

[0037] In a preferred embodiment, the welding mechanism 106 is provided with a laser head 107, an X-motion axis 108, a Y-motion axis 109 and a Z-motion axis 110. The X-motion axis 108, the Y-motion axis 109 and the Z-motion axis 110 respectively drive the laser head 107 to move along the X direction, the Y direction and the Z direction. The X-motion axis 108, the Y-motion axis 109 and the hood 101 also have a quartz glass pressure plate 122. The laser head 107 can move above the quartz glass pressure plate 122, and the laser head 107 welds the workpiece 123 transported by the feeding mechanism 116 to the bottom of the quartz glass pressure plate 122.

[0038] The welding mechanism 106 adopts a galvanometer laser welding device, and the X-motion axis 108, the Y-motion axis 109 and the Z-motion axis 110 can adopt existing structures, such as electric slide rails and double-actuator linear motors.

[0039] In a preferred embodiment, a gantry 111 is also mounted on the frame 100, an X-motion axis 108 is arranged on the gantry 111, a Y-motion axis 109 is fixedly mounted on the output end of the X-motion axis 108, a Z-motion axis 110 is arranged on the output end of the Y-motion axis 109, and a laser head 107 is arranged on the output end of the Z-motion axis 110.

[0040] The X-motion axis 108 drives the Y-motion axis 109 to move in the left-right direction, the Y-motion axis 109 drives the Z-motion axis 110 to move forward and backward, and the Z-motion axis 110 drives the laser head 107 to move up and down.

[0041] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being “above”, “above”, and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0042] In the description of this specification, the description with reference to the terms "preferred embodiment", "further embodiment", "other embodiments" or "specific example" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are contradictory.

[0043] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A welding machine, characterized in that: The welding machine includes a frame, a welding mechanism, a hood, a first movable door, a feeding mechanism and a driving mechanism. The welding mechanism and the hood are arranged on the frame, the welding mechanism is located in the hood, the first movable door is opened or closed relative to the hood so that the hood can switch between an open state and a sealed state, and the hood is in an open state for the feeding mechanism to freely enter and exit the hood, the feeding mechanism is connected to the driving mechanism, and the driving mechanism drives the feeding mechanism to enter and exit the hood, and the feeding mechanism is used to place a workpiece when it is located outside the hood, and when the welding mechanism welds the workpiece on the feeding mechanism, the hood is in a sealed state.

2. The welding machine according to claim 1, characterized in that The first movable door drive and the feeding mechanism are both connected to the same driving mechanism so that the two maintain a linkage state; when driven by the driving mechanism, the feeding mechanism enters the hood from outside the hood and drives the first movable door to close the hood so that the hood is in a sealed state; or when driven by the driving mechanism, the hood is opened and the feeding mechanism moves from inside the hood to outside the hood.

3. The welding machine according to claim 1, characterized in that The hood is also provided with a feed port, which is arranged in the Y direction. The feed port cooperates with the first movable door, and the feeding mechanism can freely enter and exit the hood through the feed port. The driving mechanism includes a first cylinder and a connecting slide rail. The output end of the first cylinder is connected to the connecting slide rail, and drives the connecting slide rail to move along the Y direction. The end of the connecting slide rail away from the first cylinder is respectively connected to the feeding mechanism and the first movable door, and the feeding mechanism is located on the inner side of the first movable door. The first cylinder drives the first movable door and the feeding mechanism to move along the Y direction through the connecting slide rail; the first movable door is opened or closed relative to the feed port so that the hood can switch between an open state and a sealed state.

4. The welding machine according to claim 3, characterized in that The welding machine also includes a second movable door and a door driving cylinder, one end of the second movable door is hinged on the machine cover, and the end of the second movable door away from the hinge is connected to the output end of the door driving cylinder; under the drive of the door driving cylinder, the second movable door is opened or closed relative to the feed port; when the second movable door is opened relative to the feed port, maintenance can be carried out inside the machine cover.

5. The welding machine according to claim 1, characterized in that A quartz glass pressure plate is also arranged in the hood, and the quartz glass pressure plate is located in the moving direction of the feeding mechanism. The laser of the welding mechanism can penetrate the quartz glass pressure plate. The driving mechanism can drive the feeding mechanism to move below the quartz glass pressure plate. The feeding mechanism is also provided with a second cylinder, and the second cylinder can drive the feeding mechanism along the Z direction to approach or move away from the quartz glass pressure plate.

6. The welding machine according to claim 1, characterized in that The feeding mechanism is provided with a feeding platform, an outer mold body movable connecting plate and an inner mold body, the feeding platform is connected to the driving mechanism, the outer mold body movable connecting plate and the inner mold body are arranged on the feeding platform, a positioning hole for positioning the workpiece is provided on the outer mold body movable connecting plate, the positioning hole extends along the Z direction and passes through the upper and lower surfaces of the outer mold body movable connecting plate, the upper end of the inner mold body is arranged in the positioning hole, the upper end surface of the inner mold body supports the workpiece, the inner mold body and the outer mold body movable connecting plate are relatively telescopically movable along the Z direction, so that the workpiece can move up and down relative to the positioning hole.

7. The welding machine according to claim 1, characterized in that The feeding mechanism includes a feeding platform, an outer mold body movable connecting plate, an inner mold body, a spring and a second cylinder. The outer mold body movable connecting plate and the feeding platform are respectively connected to the upper and lower ends of the spring. The second cylinder and the inner mold body are installed on the feeding platform. The second cylinder drives the outer mold body movable connecting plate to move up and down. The outer mold body movable connecting plate is also provided with a positioning hole, and the upper end of the inner mold body is arranged in the positioning hole.

8. The welding machine according to claim 1, characterized in that The welding mechanism is provided with a laser head, an X-motion axis, a Y-motion axis and a Z-motion axis, and the X-motion axis, the Y-motion axis and the Z-motion axis respectively drive the laser head to move along the X-direction, the Y-direction and the Z-direction. A quartz glass pressure plate is also set up in the machine cover, and the laser head can be moved above the quartz glass pressure plate, and the laser head welds the workpiece transported by the feeding mechanism to the bottom of the quartz glass pressure plate.

9. The welding machine according to claim 1, characterized in that: The frame is also provided with a gantry, on which an X motion axis is arranged, a Y motion axis is fixedly mounted on the output end of the X motion axis, a Z motion axis is arranged on the output end of the Y motion axis, and a laser head is arranged on the output end of the Z motion axis.

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