Calibration device and welding torch
By designing a calibration device that utilizes the principles of light transmission and blocking of the light-emitting component and the light-transmitting part, high-precision perpendicularity calibration between the welding torch and the workpiece is achieved, simplifying the operation process and reducing manpower requirements.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XIAOMI EV TECH CO LTD
- Filing Date
- 2025-06-23
- Publication Date
- 2026-06-30
AI Technical Summary
In existing technologies, the perpendicularity calibration accuracy between the welding torch and the workpiece is low, requiring multiple operators and resulting in high labor costs.
Design a calibration device that uses a light-emitting component and a light-transmitting part to indicate the perpendicularity of the welding torch to the workpiece through the transmission and blocking of light. The operator can determine the offset direction of the welding torch by the light leakage position of the light-transmitting part, thus achieving accurate calibration.
It improves the perpendicularity calibration accuracy between the welding torch and the workpiece, is simple to operate, and only requires one operator to complete the calibration work, saving labor costs.
Smart Images
Figure CN224424531U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automation equipment technology, specifically to a calibration device and a welding torch. Background Technology
[0002] With the rapid development of the automotive industry, improvements in the perceived quality of vehicle body appearance and welding strength will bring greater competitive advantages to products. Therefore, higher requirements are placed on the welding strength and weld appearance quality of resistance spot welding on vehicle bodies. Among these requirements, the perpendicularity of the resistance spot welding torch to the workpiece is crucial. Currently, the perpendicularity of the welding torch to the workpiece is often calibrated manually by visual inspection, resulting in low calibration accuracy and requiring multiple operators, leading to high labor costs. Utility Model Content
[0003] This utility model aims to at least partially solve one of the technical problems in the related art.
[0004] Therefore, embodiments of this utility model propose a calibration device that can improve the calibration accuracy of verticality and is simple to operate, thus saving manpower.
[0005] An embodiment of this utility model also proposes a welding torch.
[0006] The calibration device of this utility model includes: a housing having a first end and a second end arranged opposite to each other along a first direction, the first end having a fixing part for connecting with the welding torch body, and the second end having a light-transmitting part; and a light-emitting component disposed inside the housing, the light-emitting component emitting light to the outside through the light-transmitting part.
[0007] According to the calibration device of this utility model, when calibrating the perpendicularity of the welding torch and the workpiece, the operator mounts the calibration device onto the welding torch body via the fixing part, and contacts the light-transmitting part with the workpiece. When the angle between the welding torch and the workpiece is perpendicular, the workpiece can block the light emitted from the light-transmitting part, and at this time, no light leaks out at the mating position of the calibration device and the workpiece, indicating to the operator that the welding torch is perpendicular to the workpiece. Conversely, when light leaks out at the mating position of the calibration device and the workpiece, it indicates to the operator that the welding torch is not perpendicular to the workpiece. Therefore, the calibration device of this utility model can improve the calibration accuracy of the perpendicularity between the welding torch and the workpiece, and its operation is simple, which helps to save manpower.
[0008] In some embodiments, the light-transmitting portion includes a light-transmitting hole that extends along the first direction, and the light-emitting component is arranged opposite to the light-transmitting hole.
[0009] In some embodiments, the light-emitting component includes a battery and an LED, the battery being electrically connected to the LED, and the LED being disposed on the side of the battery near the light-transmitting hole.
[0010] In some embodiments, the light-emitting component further includes a lampshade with a mounting groove therein, and the LED and at least a portion of the battery are disposed in the mounting groove.
[0011] In some embodiments, the housing includes a first housing and a second housing, the first housing and the second housing being detachably connected and forming a receiving cavity, the light-emitting component being disposed in the receiving cavity, the fixing part being disposed in the first housing, and the light-transmitting part being disposed in the second housing.
[0012] In some embodiments, the light-emitting component has a conductive circuit, and the first housing is operable relative to the second housing in a first position and a second position along a first direction. In the first position, the conductive circuit is closed, and in the second position, the conductive circuit is open.
[0013] In some embodiments, the light-emitting component includes a battery, an LED bead, and a conductive element. The battery, the LED bead, and the conductive element constitute the conductive circuit. The battery and the LED bead are fixed relative to the first housing, and the conductive element is fixed relative to the second housing. In the first position, the conductive element is in contact with the battery to close the conductive circuit. In the second position, the conductive element is spaced apart from the battery to open the conductive circuit.
[0014] In some embodiments, the calibration device further includes an elastic element disposed between the battery and the second housing, the elastic element pressing the battery toward the LED bead.
[0015] In some embodiments, the first shell and the second shell are threaded together.
[0016] Another embodiment of the welding torch of the present invention includes: a calibration device, wherein the calibration device is any of the calibration devices described in any of the embodiments of the present invention; and a welding torch body, wherein the welding torch body is connected to the fixing part.
[0017] According to an embodiment of the present invention, when calibrating the perpendicularity of the welding torch and the workpiece, the operator mounts the calibration device onto the welding torch body via a fixing part, and contacts the light-transmitting part with the workpiece. When the angle between the welding torch and the workpiece is perpendicular, the workpiece can block the light emitted from the light-transmitting part, and at this time, no light leaks out at the mating position of the calibration device and the workpiece, indicating to the operator that the welding torch is perpendicular to the workpiece. Conversely, when light leaks out at the mating position of the calibration device and the workpiece, it indicates to the operator that the welding torch is not perpendicular to the workpiece. Therefore, the method for calibrating the perpendicularity of the welding torch and the workpiece according to the embodiment of the present invention is simple to operate and helps to save manpower. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the calibration device of this utility model calibrating the perpendicularity of a workpiece. Figure 1 .
[0019] Figure 2 This is a schematic diagram of the calibration device of this utility model calibrating the perpendicularity of a workpiece. Figure 2 .
[0020] Figure 3 This is a perspective view of the calibration device according to an embodiment of the present invention.
[0021] Figure 4 This is an exploded view of the calibration device according to an embodiment of the present invention.
[0022] Figure 5 This is a cross-sectional view of the calibration device according to an embodiment of the present invention.
[0023] Figure label:
[0024] 1. Outer shell; 11. First shell; 111. First end; 112. Fixing part; 1121. Fixing groove; 12. Second shell; 121. Second end; 122. Light-transmitting part; 1221. Light-transmitting hole; 123. Abutting surface; 13. Receiving cavity; 14. Textured layer;
[0025] 2. Light-emitting component; 21. Battery; 22. LED chip; 23. Lampshade; 231. Mounting slot; 24. Conductive component;
[0026] 3. Elastic components;
[0027] 4. Workpiece. Detailed Implementation
[0028] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.
[0029] The following is a reference appendix. Figures 1 to 5 This invention describes a calibration device and a welding torch according to embodiments of the present invention.
[0030] like Figures 1 to 5 As shown, the calibration device of this utility model embodiment includes a housing 1 and a light-emitting component 2. The housing 1 has a light-emitting component 2 along a first direction (e.g., Figure 3 The first end 111 and the second end 121 are arranged opposite each other in the axial direction of the outer shell 1. The first end 111 is provided with a fixing part 112 for connecting with the welding gun body (not shown), and the second end 121 is provided with a light-transmitting part 122. The light-emitting component 2 is disposed inside the outer shell 1 and can emit light to the outside through the light-transmitting part 122.
[0031] According to the calibration device of this utility model embodiment, when calibrating the perpendicularity of the welding torch and the workpiece 4, the operator installs the calibration device onto the welding torch body via the fixing part 112 and contacts the light-transmitting part 122 with the workpiece 4. When the angle between the welding torch and the workpiece 4 is perpendicular, the workpiece 4 can block the light emitted outward from the light-transmitting part 122. At this time, no light leaks out at the mating position of the calibration device and the workpiece 4, thus indicating to the operator that the welding torch is perpendicular to the workpiece 4. When light leaks out at the mating position of the calibration device and the workpiece 4, it indicates to the operator that the welding torch is not perpendicular to the workpiece 4. Therefore, the calibration device of this utility model embodiment can improve the calibration accuracy of the perpendicularity between the welding torch and the workpiece 4, and the operation method is simple, which helps to save manpower.
[0032] It is understood that the calibration device in this embodiment of the invention utilizes the principle of light diffraction to calibrate the perpendicularity of the welding torch. For example... Figure 2 As shown, after the calibration device contacts the workpiece 4, the operator can determine the offset direction of the welding torch based on the light leakage position of the light-transmitting part 122 of the calibration device. That is, when light leakage occurs in the light-transmitting part 122 of the calibration device, it indicates that the welding torch is tilted in the opposite direction of the light leakage position. Figure 1 As shown, when no light leaks out from the light-transmitting part 122 of the calibration device, it indicates that the welding torch is perpendicular to the workpiece 4.
[0033] Compared to the previous method of "operators directly visually calibrating the perpendicularity of the welding torch to the workpiece 4," this method improves the calibration accuracy of the perpendicularity between the welding torch and the workpiece 4. Furthermore, the calibration device of this embodiment requires only one operator to complete the calibration work, thus saving labor costs.
[0034] like Figure 3 and Figure 5As shown, the second end 121 of the outer casing 1 has an abutment surface 123, and a through portion is provided on the abutment surface 123. When the calibration device contacts the workpiece 4, and the angle between the calibration device and the workpiece 4 is perpendicular, the abutment surface 123 contacts the wall surface of the workpiece 4 without gaps, thereby indicating to the operator that the welding torch is perpendicular to the workpiece 4. It is understood that the abutment surface 123 is adapted to the wall surface of the workpiece 4. Exemplarily, the abutment surface 123 can be a plane.
[0035] Optionally, such as Figures 3 to 5 As shown, the light-transmitting part 122 includes a light-transmitting hole 1221, which extends along a first direction. The light-emitting component 2 is arranged opposite to the light-transmitting hole 1221. It can be understood that the light-emitting component 2 can emit light to the outside through the light-transmitting hole 1221. Compared with the solution of "the light-transmitting part 122 being a solid light-transmitting panel", on the one hand, it can reduce the manufacturing cost of the calibration device and is easier to process and manufacture; on the other hand, directly opening the light-transmitting hole 1221 on the outer shell 1 will not interfere with the light, and the light transmission effect is better.
[0036] like Figure 5 As shown, the inner end of the light-transmitting hole 1221 is arranged opposite to the light-emitting component 2, and the outer end of the light-transmitting hole 1221 is connected to the abutment surface 123.
[0037] Optionally, such as Figure 4 and Figure 5 As shown, the light-emitting component 2 includes a battery 21 and an LED 22. The battery 21 is electrically connected to the LED 22, and the LED 22 is located on the side of the battery 21 near the light-transmitting hole 1221. It is understood that the battery 21 can supply power to the LED 22. Since the calibration device uses a built-in power supply to power the LED 22, it facilitates daily use of the calibration device, and its compact design occupies less space.
[0038] For example, the lamp bead 22 can be an LED lamp bead 22. The center line of the lamp bead 22 is collinear with the axis of the light-transmitting hole 1221 to improve the uniformity of light emitted from the light-transmitting hole 1221.
[0039] Optionally, such as Figure 4 and Figure 5 As shown, the light-emitting component 2 also includes a lampshade 23, which has a mounting groove 231 inside. The LED chip 22 and at least a portion of the battery 21 are disposed in the mounting groove 231. When assembling the calibration device, the LED chip 22 and the battery 21 can be assembled into the mounting groove 231 of the lampshade 23, and then assembled together into the housing 1. This can improve the assembly efficiency of the calibration device. In addition, since the LED chip 22 and at least a portion of the battery 21 are disposed in the mounting groove 231, the mounting groove 231 can constrain the position of the LED chip 22 and the battery 21, thereby improving the stability of the electrical contact between the LED chip 22 and the battery 21.
[0040] Optionally, such as Figure 4 and Figure 5 As shown, the outer casing 1 includes a first casing 11 and a second casing 12. The first casing 11 and the second casing 12 are detachably connected and form a receiving cavity 13. The light-emitting component 2 is disposed in the receiving cavity 13, the fixing part 112 is disposed in the first casing 11, and the light-transmitting part 122 is disposed in the second casing 12. Since the first casing 11 and the second casing 12 are detachably connected, it is convenient for subsequent operators to disassemble, install, and replace the light-emitting component 2, thereby improving the convenience of using the calibration device.
[0041] For example, the first shell 11 and the second shell 12 are threaded together, which facilitates the assembly and disassembly of the first shell 11 and the second shell 12, and the structure is simple and easy to manufacture.
[0042] Optionally, such as Figure 5 As shown, the light-emitting component 2 has a conductive circuit. The first housing 11 is movable relative to the second housing 12 in a first direction at a first position and a second position. In the first position, the conductive circuit is closed, and in the second position, the conductive circuit is open. When the operator needs to use the calibration device, the relative position between the first housing 11 and the second housing 12 can be changed to close the conductive circuit, thereby causing the light-emitting component 2 to emit light. When the operator finishes using it, the conductive circuit can be opened to turn off the light-emitting component 2, thus saving the power of the light-emitting component 2 and making the operation convenient.
[0043] In one example, such as Figure 4 and Figure 5 As shown, the light-emitting component 2 includes a battery 21, an LED bead 22, and a conductive element 24. The battery 21, LED bead 22, and conductive element 24 form a conductive circuit. The battery 21 and LED bead 22 are fixed relative to the first housing 11, and the conductive element 24 is fixed relative to the second housing 12. In a first position, the conductive element 24 is in contact with the battery 21 to close the conductive circuit. In a second position, the conductive element 24 is spaced apart from the battery 21 to open the conductive circuit. It can be understood that in the first position, one of the positive and negative terminals of the battery 21 is connected to the LED bead 22 through the conductive element 24, and the other of the positive and negative terminals of the battery 21 is also connected to the LED bead 22, so that the battery 21, LED bead 22, and conductive element 24 form a closed conductive circuit. In the second position, since the conductive element 24 is spaced apart from the battery 21, the closed conductive circuit formed by the battery 21, LED bead 22, and conductive element 24 can be opened. This makes the circuit of the light-emitting component 2 easy to switch on and off, and the structure design is simple and easy to manufacture.
[0044] For example, the outer shell 1 (the second shell 12 and the first shell 11) is a conductive metal shell, and the battery 21, the lamp bead 22, the conductive element 24 and the outer shell 1 can form a closed conductive circuit.
[0045] Optionally, such as Figure 4 and Figure 5 As shown, the calibration device also includes an elastic element 3, which is disposed between the battery 21 and the second shell 12. The elastic element 3 presses the battery 21 in the direction of the lamp bead 22. When the first shell 11 and the second shell 12 are far apart, the elastic element 3 can always be in contact with the battery 21 and the second shell 12, thereby preventing the battery 21 from axially shaking relative to the second shell 12 and coming into contact with the conductive element 24, so as to ensure the reliability of the conductive circuit being disconnected.
[0046] For example, the elastic element 3 is an elastic rubber ring that surrounds the outside of the conductive element 24.
[0047] like Figure 4 and Figure 5 As shown, the first shell 11 and the second shell 12 are threaded together. On the one hand, this facilitates the assembly and disassembly of the first shell 11 and the second shell 12, and the structure is simple and easy to manufacture. On the other hand, the operator can screw the first shell 11, and under the guidance of the thread, the first shell 11 and the second shell 12 can move relative to each other in the first direction. This can turn the conductive circuit of the light-emitting component 2 on or off, thereby improving the convenience of using the calibration device.
[0048] For example, such as Figure 3 As shown, the outer wall of the outer shell 1 has a textured layer 14, which increases the friction between the outer wall of the outer shell 1 and the operator's hand, making it easier to rotate the first shell 11.
[0049] Optionally, such as Figure 5 As shown, the fixing part 112 includes a fixing groove 1121, which opens towards the side opposite to the light-transmitting part 122, thereby facilitating the connection between the welding torch body and the housing 1 of the calibration device. Exemplarily, the fixing groove 1121 has a circular cross-section, and its cross-sectional profile gradually decreases along the direction towards the light-transmitting part 122, i.e., the fixing groove 1121 has a certain taper. This improves the stability of the welding torch body after installation when its connector is inserted into the fixing groove 1121.
[0050] Another embodiment of the welding torch of the present invention includes a calibration device and a welding torch body (not shown). The calibration device is the calibration device of the present invention, and the welding torch body is connected to the fixing part 112.
[0051] According to an embodiment of the present invention, when calibrating the perpendicularity of the welding torch and the workpiece 4, the operator mounts the calibration device onto the welding torch body via the fixing part 112 and contacts the light-transmitting part 122 with the workpiece 4. When the angle between the welding torch and the workpiece 4 is perpendicular, the workpiece 4 can block the light emitted outward from the light-transmitting part 122. At this time, no light leaks out at the mating position of the calibration device and the workpiece 4, indicating to the operator that the welding torch is perpendicular to the workpiece 4. When light leaks out at the mating position of the calibration device and the workpiece 4, it indicates to the operator that the welding torch is not perpendicular to the workpiece 4. Therefore, the perpendicularity calibration method of the welding torch and the workpiece 4 according to the embodiment of the present invention is simple to operate and helps to save manpower.
[0052] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0053] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0054] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0055] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0056] In this utility model, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.
[0057] Although the above embodiments have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Any changes, modifications, substitutions and variations made to the above embodiments by those skilled in the art are within the protection scope of the present invention.
Claims
1. A calibration device, characterized in that, include: The outer shell (1) has a first end (111) and a second end (121) arranged opposite to each other along a first direction. The first end (111) is provided with a fixing part (112) for connecting with the welding gun body, and the second end (121) is provided with a light-transmitting part (122). The light-emitting component (2) is disposed inside the housing (1) and can emit light to the outside through the light-transmitting part (122).
2. The calibration device according to claim 1, characterized in that, The light-transmitting part (122) includes a light-transmitting hole (1221) which extends along the first direction, and the light-emitting component (2) is arranged opposite to the light-transmitting hole (1221).
3. The calibration device according to claim 2, characterized in that, The light-emitting component (2) includes a battery (21) and an LED (22). The battery (21) is electrically connected to the LED (22), and the LED (22) is located on the side of the battery (21) near the light-transmitting hole (1221).
4. The calibration device according to claim 3, characterized in that, The light-emitting component (2) also includes a lampshade (23), which has a mounting groove (231) inside, and the lamp beads (22) and at least part of the battery (21) are located in the mounting groove (231).
5. The calibration device according to claim 1, characterized in that, The outer shell (1) includes a first shell (11) and a second shell (12). The first shell (11) and the second shell (12) are detachably connected and form a receiving cavity (13). The light-emitting component (2) is disposed in the receiving cavity (13). The fixing part (112) is disposed in the first shell (11), and the light-transmitting part (122) is disposed in the second shell (12).
6. The calibration apparatus according to claim 5, characterized in that, The light-emitting component (2) has a conductive circuit, and the first shell (11) is operable relative to the second shell (12) in a first position and a second position along the first direction. In the first position, the conductive circuit is closed, and in the second position, the conductive circuit is open.
7. The calibration apparatus according to claim 6, characterized in that, The light-emitting component (2) includes a battery (21), an LED (22), and a conductive element (24). The battery (21), the LED (22), and the conductive element (24) constitute the conductive circuit. The battery (21) and the LED (22) are fixed relative to the first shell (11), and the conductive element (24) is fixed relative to the second shell (12). In the first position, the conductive element (24) is in contact with the battery (21) to close the conductive circuit. In the second position, the conductive element (24) is spaced apart from the battery (21) to open the conductive circuit.
8. The calibration apparatus according to claim 7, characterized in that, The calibration device further includes an elastic element (3) disposed between the battery (21) and the second shell (12), and the elastic element (3) presses the battery (21) toward the lamp bead (22).
9. The calibration apparatus according to any one of claims 5-8, characterized in that, The first shell (11) and the second shell (12) are threaded together.
10. A welding torch, characterized in that, include: A calibration device, wherein the calibration device is the calibration device according to any one of claims 1-9; The welding torch body is connected to the fixing part (112).