Manual zero-gravity boosting arm and laser processing device

Abstract

The utility model discloses a manual agravic booster arm and a laser processing device, which belong to the technical field of mechanical arms, the manual agravic booster arm comprises a base, a first moving arm is arranged on the base, the first end of the first moving arm is rotatably connected with the base, and the second end of the first moving arm can swing in a horizontal plane; the second moving arm is connected with the first moving arm, and the other end of the second moving arm is connected with a laser; a first damping mechanism is arranged between the first moving arm and the second moving arm, and a second damping mechanism is arranged between the second moving arm and the laser. According to the manual zero-gravity assisting arm, swinging between the first moving arm and the second moving arm and swinging between the second moving arm and the laser are correspondingly limited through the first damping mechanism and the second damping mechanism, so that the laser is directly suspended at the set height and position, and when the laser is manually driven to machine, the laser can be directly suspended at the set height and position; and the laser does not need to be manually pressed and lifted, so that the working intensity of manual laser processing is reduced, and the laser processing efficiency and precision are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of mechanical arms, and in particular relates to a manual weightless auxiliary arm and a laser processing device. Background Art

[0002] In recent years, the laser industry has flourished. Manual laser marking and welding are widely used in battery welding and component engraving due to their low cost and good adaptability. There are two mainstream methods of laser welding or marking. One is to mount the laser head on a manual module for height adjustment, and then adjust the welding or marking area based on the laser head's own working range; the other is to mount the laser head on a manual power arm, and then manually drive the laser head to move to adjust the welding or marking area.

[0003] For existing laser welding or marking methods, if the welding area is adjusted by relying on the working range of the laser head itself, the laser focal length needs to be readjusted for each product when welding or marking different products. In addition, the working range of the laser head itself is relatively small and is only suitable for products with a smaller processing area. The second method requires long-term manual suppression of the resetting force of the lever arm, and the operator applies different forces when the laser head is located at different heights or orientations. This can easily lead to fatigue during long-term work, puts a heavy burden on the operator's body, and makes it difficult to ensure laser processing accuracy. Utility Model Content

[0004] In response to one or more of the above defects or improvement needs in the prior art, the utility model provides a manual weightless power-assisting arm to solve the problem that the operator needs to continuously overcome the arm reset force during the existing manually driven laser head processing, which causes a heavy body burden on the operator and makes it difficult to ensure the processing accuracy.

[0005] In order to achieve the above object, the utility model provides a manual weightless power-assisting arm, which comprises:

[0006] Base;

[0007] A first movable arm, the first movable arm is connected to the base; the first movable arm comprises a first end and a second end, the first end is rotatably connected to the base, and the second end can rotate in a horizontal plane;

[0008] A second movable arm, one end of the second movable arm is connected to the second end of the first movable arm, and the other end of the second movable arm is used to connect to a laser;

[0009] Wherein, a first damping mechanism is provided between the second moving arm and the first moving arm, and the second moving arm and the first moving arm are arranged to swing vertically;

[0010] A second damping mechanism is provided between the second movable arm and the laser, and the second movable arm and the laser are arranged to swing vertically.

[0011] As a further improvement of the utility model, the second movable arm includes a first movable arm and a second movable arm which are arranged side by side and obliquely, a gap is left between the first movable arm and the second movable arm, and the first movable arm is arranged above the second movable arm;

[0012] A spring is arranged in the gap, one end of the spring is connected to the upper end of the first movable arm, and the other end of the spring is connected to the lower end of the second movable arm, and the spring is in a compressed state.

[0013] As a further improvement of the utility model, the first damping mechanism includes two connecting plates arranged side by side, a first rotating shaft is provided between the two connecting plates, the first rotating shaft is arranged vertically, one end of the first rotating shaft is clamped between the two connecting plates, and the other end is connected to the first movable arm, and the first rotating shaft and the first movable arm are rotatably arranged.

[0014] As a further improvement of the utility model, the two connecting plates are provided with a first damper and a second damper at one end facing the second movable arm, the first movable arm is connected to the first damper, and the second movable arm is connected to the second damper;

[0015] The second damping mechanism is provided with a third damper and a fourth damper at one end facing the second movable arm, the first movable arm is connected to the third damper at one end facing the laser, and the second movable arm is connected to the fourth damper at one end facing the laser.

[0016] As a further improvement of the present invention, elastic gaskets are provided on the end surfaces where the first damper and the second damper are connected to the two connecting plates.

[0017] As a further improvement of the utility model, a second rotating shaft is vertically provided on the base, the second rotating shaft is rotatably arranged on the base, one end of the first movable arm is rotatably connected to the second rotating shaft, and the other end thereof is connected to the first rotating shaft.

[0018] As a further improvement of the present invention, one end of the first movable arm connected to the second movable arm is higher than one end of the first movable arm connected to the base.

[0019] As a further improvement of the present invention, the damping of the first damping mechanism and the second damping mechanism are both adjustable.

[0020] As a further improvement of the present invention, the spring is a nitrogen spring, and the damping force of the first damping mechanism and the second damping mechanism is greater than the combined force of the elastic force of the spring and the gravity of the mounted laser.

[0021] The present application also includes a laser processing device, which includes the manual weightless assist arm, the second movable arm is connected to a connecting seat at one end away from the first movable arm, a laser is provided on the connecting seat, and an operating handle is provided on the side of the laser away from the second movable arm.

[0022] The above-mentioned improved technical features can be combined with each other as long as they do not conflict with each other.

[0023] In general, compared with the prior art, the above technical solutions conceived by the utility model have the following beneficial effects:

[0024] (1) The manual weightless assist arm of the utility model is provided with a first movable arm and a second movable arm, and utilizes the rotation setting structure of the first movable arm and the base so that the second movable arm and the laser can rotate in a horizontal plane, so as to increase the processing range of the laser and facilitate the laser to process workpieces at different positions in the area; at the same time, the first damping mechanism and the second damping mechanism at both ends of the second movable arm can correspondingly limit the swing between the first movable arm and the second movable arm, and the swing between the second movable arm and the laser, so as to directly suspend the laser at a set height and position, so that when the laser is manually driven for processing, there is no need to manually suppress and lift the laser, so as to reduce the workload of manual laser processing and improve the efficiency of laser processing; and the two damping mechanisms maintain the laser to work stably at the set position, avoid the jitter problem caused by manual balance maintenance, and ensure the processing accuracy of the laser.

[0025] (2) The manual weightless assist arm of the utility model is configured such that the second movable arm is formed as a combination of the first movable arm and the second movable arm, and a spring is arranged between the two movable arms, and the spring is set in a compressed state, so that the laser stays at a set height under the lifting force of the spring. When the laser needs to be moved for use, the elastic force of the spring is overcome by two damping mechanisms, so that the laser stays at the set height for processing; when the processing is completed, the laser is driven to reset, and the corresponding output elastic force of the spring causes the laser to return to its original position, so that it can be used for the next processing.

[0026] (3) The manual weightless power-assisting arm of the utility model realizes the vertical swinging of the second movable arm by setting the damping mechanism as a combination of two connecting plates and a damper, and using the two dampers to respectively connect the first movable arm and the second movable arm. Secondly, the present application sets an elastic gasket on the matching end surface of the damper and the connecting plate to increase the friction between the damper and the connecting plate, so that the second movable arm can stay at a set height; at the same time, the elastic gasket can reduce the friction noise between the damper and the connecting plate, which is convenient for workers to use for a long time. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of the manual weightless power-assisting arm in the embodiment of the utility model;

[0028] Figure 2 It is a schematic diagram of the overall structure of the second movable arm in the embodiment of the utility model;

[0029] Figure 3 It is a schematic diagram of the overall structure of the first damping mechanism in the embodiment of the utility model.

[0030] In all the drawings, the same reference numerals represent the same technical features, specifically:

[0031] 1. Base; 2. Second rotating axis; 3. First movable arm; 4. First rotating axis; 5. First damping mechanism; 6. Spring; 7. First movable arm; 8. Second movable arm; 9. Second damping mechanism; 10. Connecting seat; 11. Laser; 12. Operating handle; 13. First damper; 14. Connecting plate. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model. In addition, the technical features involved in each embodiment of the utility model described below can be combined with each other as long as they do not conflict with each other.

[0033] In the description of the present invention, it should be understood that, unless otherwise specified, terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", and "circumferential" indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0034] In addition, unless otherwise specified, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0035] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] In the present utility model, 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" or "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" or "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.

[0037] Example:

[0038] See also Figures 1 to 3The manual weightless assist arm in the preferred embodiment of the utility model includes a base 1, on which a first movable arm 3 is provided, and the first movable arm 3 includes a first end and a second end, wherein the first end is used to be rotatably connected to the base 1, and the second end can rotate correspondingly in a horizontal plane; the present application also includes a second movable arm, one end of which is connected to the second end of the first movable arm 3, and the other end of which is used to connect to the laser 11; and a first damping mechanism 5 is provided between the second movable arm and the first movable arm 3, and the second movable arm and the first movable arm 3 are arranged to swing vertically; a second damping mechanism 9 is provided between the second movable arm and the laser 11, and the second movable arm and the laser 11 are also arranged to swing vertically.

[0039] Specifically, the present application sets a first moving arm 3 and a second moving arm, and through the rotation setting of the first moving arm 3 and the base 1, the second moving arm and the laser 11 connected thereto can be rotated in the horizontal plane, so as to greatly increase the processing range of the laser 11, and facilitate the laser 11 to process workpieces at different positions in the region; secondly, the present application sets a first damping mechanism 5 and a second damping mechanism 9 at both ends of the second moving arm, so as to limit the vertical swing amplitude of the second moving arm. The present application limits the setting angle of the first moving arm 3 and the second moving arm through the first damping mechanism 5, and limits the setting angle of the second moving arm and the laser 11 through the second damping mechanism 9, so that the laser 11 can be suspended at the set height and position accordingly, so that when the laser 11 is manually driven for processing, the laser 11 does not need to be manually suppressed and lifted, which greatly reduces the work intensity of manual laser processing, improves the efficiency of laser processing, and maintains the stable processing of the laser 11, ensuring the processing accuracy of the laser 11.

[0040] Further, as a preferred embodiment of the utility model, the second movable arm in the present application includes a first movable arm 7 and a second movable arm 8 arranged obliquely and side by side, and a gap is left between the first movable arm 7 and the second movable arm 8, and the first movable arm 7 is arranged above the second movable arm 8; and a spring 6 is provided in the gap, one end of the spring 6 is connected to the upper end of the first movable arm 7, and the other end is connected to the lower end of the second movable arm 8, and the spring 6 is in a compressed state. Specifically, the second movable arm in the present application is mainly used to lift the laser 11 to a set height, and can be taken and placed to any height at any time when processing the workpiece, in order to facilitate the laser 11 to rebound to the set position after use, so as to facilitate the next pick-up and placement. The present application corresponds to the arrangement of the first movable arm 7, the second movable arm 8 and the spring 6 structure, and the three form a "Z"-shaped structure. When the workpiece needs to be processed, the laser 11 is moved to the set position, the first damping mechanism 5 and the second damping mechanism 9 suppress the rebound force of the spring 6, and the laser 11 is stabilized at the set position for use; when the processing is completed, the laser 11 is manually driven to move up, the spring 6 rebounds accordingly, and the laser 11 returns to its original position for the next processing.

[0041] It is worth noting that the spring 6 in the present application can also be in the form of a combination of a telescopic cylinder and a telescopic rod, or a combination of a partial telescopic rod and a spring 6, as long as a telescopic support structure is ensured between the first movable arm 7 and the second movable arm 8 to assist the laser 11 to return to its original position.

[0042] Further, as a preferred embodiment of the utility model, the first damping mechanism 5 in the present application includes two connecting plates 14 arranged side by side, and a first rotating shaft 4 is arranged between the two connecting plates 14. The first rotating shaft 4 is arranged vertically, one end of which is clamped between the two connecting plates 14, and the other end of which is connected to the first movable arm 3, and the first rotating shaft 4 is rotatably arranged with the first movable arm 3. Specifically, the damping mechanism in the present application is mainly achieved by setting two connecting plates 14, and then clamping the second movable arm by the two connecting plates 14, and limiting the second movable arm by the surface friction between the connecting plates 14 and the second movable arm, so that the second movable arm stops at a set angle. The first rotating shaft 4 allows the first movable arm 3 and the second movable arm to rotate relative to each other, so that the laser 11 has a larger swing range, so as to increase the processing area of ​​the laser 11.

[0043] Further, as a preferred embodiment of the utility model, the two connecting plates 14 in the present application are provided with a first damper 13 and a second damper at one end facing the second movable arm, wherein the first movable arm 7 is connected to the first damper 13, and the second movable arm 8 is connected to the second damper; the second damping mechanism 9 is provided with a third damper and a fourth damper at one end facing the second movable arm, wherein the first movable arm 7 is connected to the third damper at one end facing the laser 11, and the second movable arm 8 is connected to the fourth damper at one end facing the laser 11. As a specific embodiment of the damping mechanism of the present application, the first damping mechanism 5 in the present application is composed of two connecting plates 14 and two dampers, wherein the first movable arm 7 is connected to the first damper 13 and the third damper, and the second movable arm 8 is connected to the second damper and the fourth damper. When the first movable arm 7 and the second movable arm 8 rotate, the friction between each damper and the connecting plate 14 needs to be overcome, so that the laser 11 stays at the set angle and height.

[0044] Furthermore, as a preferred embodiment of the utility model, elastic gaskets are provided at the end surfaces where the first damper 13 and the second damper in the present application meet the two connecting plates 14. The elastic gaskets are mainly used to increase the friction between the damper and the connecting plate 14, so that the two damping mechanisms can limit the rebound of the spring 6 to fix the laser 11 at a set angle and position. At the same time, the elastic gasket can avoid the friction noise between the damper and the connecting plate 14 when the damper rotates, which is convenient for workers to use for a long time. Correspondingly, the above-mentioned elastic gasket structure is also provided between the third damper and the fourth damper and the connecting plate 14 in the present application.

[0045] Further, as a preferred embodiment of the utility model, the base 1 in the present application is provided with a second rotating shaft 2 in the vertical direction, the second rotating shaft 2 is rotatably arranged on the base 1, and one end of the first movable arm 3 is rotatably connected to the second rotating shaft 2, and the other end thereof is connected to the first rotating shaft 4. The base 1 in the present application is mainly used as a connecting and bearing structure of the laser 11, so that the laser 11 can be moved and processed within a set range, and the first movable arm 3 is provided with a first rotating shaft 4 and a second rotating shaft 2 at both ends, respectively, so that the laser 11 connected to the second movable arm can be rotated with the base 1 as the center to adjust the processing position within a set range.

[0046] Further preferably, in the present application, the end of the first movable arm 3 connected to the second movable arm is higher than the end of the first movable arm 3 connected to the base 1. In the present application, the first movable arm 3 is arranged as a whole tilted upward, and the base 1 is arranged on the ground. In order to make the laser 11 itself have a certain height to facilitate adjustment and processing of the workpiece, the present application correspondingly sets the first movable arm 3 in an inclined form to raise the arrangement height of the second movable arm and the laser 11, so as to facilitate the height adjustment of the laser 11.

[0047] Furthermore, the damping of the first damping mechanism 5 and the second damping mechanism 9 in the present application are both adjustable. The damping mechanism in the present application is mainly used to keep the laser 11 at a set height. Under normal circumstances, the laser 11 is mainly lifted by the spring 6. When the model and size of the laser 11 are changed, the spring 6 with the corresponding elastic force needs to be matched. Therefore, the spring 6 compressed to the set height may need to overcome elastic forces of different sizes. The present application can adjust the damping size of the first damping mechanism 5 and the second damping mechanism 9, so that the laser 11 can be stabilized at a set height position on the basis of facilitating the displacement adjustment of the laser 11.

[0048] Further preferably, the spring 6 in the present application is a nitrogen spring 6, and the damping force of the first damping mechanism 5 and the second damping mechanism 9 is greater than the combined force of the spring 6 elastic force and the gravity of the mounted laser 11. Compared with the conventional metal spring 6 structure, the nitrogen spring 6 has a larger reaction force in the initial state, which makes it easier for the spring 6 to lift the laser 11 to a set height position; at the same time, the elastic force of the nitrogen spring 6 is relatively stable during the entire stroke, so that the laser 11 is relatively stable during the height adjustment process, so as to adjust the laser 11 to the set height position.

[0049] Furthermore, the present application also includes a laser processing device, which includes the above-mentioned manual weightless assist arm, wherein the end of the second movable arm away from the first movable arm 3 is connected to a connecting seat 10, the laser 11 is arranged on the connecting seat 10, and an operating handle 12 is arranged on the side of the laser 11 away from the second movable arm. The connecting seat 10 is mainly used to connect the second damping mechanism 9 and the laser 11, and realize the connection between the laser 11 and the second damping mechanism 9 without changing the overall structure of the laser 11; the operating handle 12 is used to facilitate the staff to move the laser 11, so as to move the laser 11 to the set position and height, so as to facilitate the processing of the workpiece.

[0050] It is easy for those skilled in the art to understand that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A manual weightless power assist arm, characterized in that: include: Base; A first movable arm, the first movable arm is connected to the base; the first movable arm comprises a first end and a second end, the first end is rotatably connected to the base, and the second end can rotate in a horizontal plane; A second movable arm, one end of the second movable arm is connected to the second end of the first movable arm, and the other end of the second movable arm is used to connect to a laser; Wherein, a first damping mechanism is provided between the second moving arm and the first moving arm, and the second moving arm and the first moving arm are arranged to swing vertically; A second damping mechanism is provided between the second movable arm and the laser, and the second movable arm and the laser are arranged to swing vertically.

2. The manual weightless assist arm according to claim 1, characterized in that: The second movable arm comprises a first movable arm and a second movable arm which are arranged side by side and obliquely, a gap is left between the first movable arm and the second movable arm, and the first movable arm is arranged above the second movable arm; A spring is arranged in the gap, one end of the spring is connected to the upper end of the first movable arm, and the other end of the spring is connected to the lower end of the second movable arm, and the spring is in a compressed state.

3. The manual weightless assist arm according to claim 2, characterized in that: The first damping mechanism includes two connecting plates arranged side by side, a first rotating shaft is provided between the two connecting plates, the first rotating shaft is arranged vertically, one end of the first rotating shaft is clamped between the two connecting plates, and the other end is connected to the first movable arm, and the first rotating shaft and the first movable arm are rotatably arranged.

4. The manual weightless assist arm according to claim 3, characterized in that: The two connecting plates are provided with a first damper and a second damper at one end facing the second movable arm, the first movable arm is connected to the first damper, and the second movable arm is connected to the second damper; The second damping mechanism is provided with a third damper and a fourth damper at one end facing the second movable arm, the first movable arm is connected to the third damper at one end facing the laser, and the second movable arm is connected to the fourth damper at one end facing the laser.

5. The manual weightless assist arm according to claim 4, characterized in that: The end surfaces of the first damper and the second damper connected to the two connecting plates are provided with elastic gaskets.

6. The manual weightless assist arm according to any one of claims 3 to 5, characterized in that: A second rotating shaft is vertically arranged on the base, and the second rotating shaft is rotatably arranged on the base. One end of the first movable arm is rotatably connected to the second rotating shaft, and the other end of the first movable arm is connected to the first rotating shaft.

7. The manual weightless assist arm according to claim 1, characterized in that: An end of the first moving arm connected to the second moving arm is higher than an end of the first moving arm connected to the base.

8. The manual weightless assist arm according to claim 1, characterized in that: The damping of the first damping mechanism and the second damping mechanism are both adjustable.

9. The manual weightless assist arm according to claim 2, characterized in that: The spring is a nitrogen spring.

10. A laser processing device, characterized in that: It comprises a manual weightless assist arm as described in any one of claims 1 to 9, wherein the second movable arm is connected to a connecting seat at one end away from the first movable arm, a laser is arranged on the connecting seat, and an operating handle is arranged on the side of the laser away from the second movable arm.

Images