Positioning device and positioning method for multiple welding points

Abstract

The invention discloses a positioning device and method for multiple welding points, and the device comprises two coaxially rotating rod bodies, the relative rotation angle of the two rod bodies is measured through an angle scale, scale rods are movably arranged on the two rod bodies, one end of each scale rod is provided with a positioning groove with the inner wall being a cylindrical surface, and the scale rods are perpendicular to the rod bodies. The reading of the scale rod is adjusted through the locking piece and the scale rod is locked on the rod body, and when the angle scale is zeroed and the reading of the scale rod is the same, the central axes of the cylindrical surfaces on the scale rod coincide. According to the technical scheme, the positioning device for the multiple welding points is used for welding small parts on the upper plane and the lower plane of the to-be-welded part, positioning grooves do not need to be machined in the to-be-welded part, operation is convenient and fast, and the steps of positioning the positioning grooves and machining the positioning grooves are omitted. The quality of the to-be-welded part is guaranteed, the machining precision and the machining efficiency are improved, the device is suitable for welding of the multi-layer quartz part, and the welding cost of the quartz part is greatly reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of semiconductor processing, and in particular to a positioning device and a positioning method for multiple welding points. Background Art

[0002] When it is necessary to weld small components that are coaxially distributed on the upper and lower planes of the component to be welded, the existing practice is to use a CNC machine tool to machine positioning grooves for each small component on the upper and lower planes of the component to be welded, so that the positioning grooves on the upper and lower planes correspond to each other and are coaxially arranged. After the machining is completed, the small components can be directly placed in the corresponding positions of the component to be welded for welding. In the field of semiconductor quartz parts processing technology, machining positioning grooves on quartz parts will produce cracks, notches and other broken layers, increasing the risk of cracking and scrapping during later fire polishing. For irregular components to be welded, it is difficult to find a positioning reference when machining grooves on the upper and lower planes of the component to be welded, the operation is complicated and the processing accuracy is not high. Moreover, when multiple layers of components to be welded are welded in sequence, the positioning groove method is no longer applicable. The machined positioning grooves will deform under the influence of high temperature and cannot be accurately positioned.

[0003] For example, Chinese patent publication number CN110655308B, publication date October 24, 2023, is named "A quartz tube vertical welding device and method", which includes a controller, a base, a welding gun, a first motor and a second motor. The support rod is rotatably connected to a first vertical rotating shaft, and an end cap fixing plate is fixedly connected to the first vertical rotating shaft. The first vertical rotating shaft is detachably fixedly connected to the rotating shaft of the first motor. The base is rotatably connected to a second vertical rotating shaft, and a quartz tube support base is fixed at the upper end of the second vertical rotating shaft. The second vertical rotating shaft is detachably fixedly connected to the rotating shaft of the second motor. The central axis of the first vertical rotating shaft, the central axis of the second vertical rotating shaft, the central axis of the end cap fixing plate and the central axis of the quartz tube support base are located on a straight line in the same vertical direction.

[0004] The disadvantages of the existing patent are that the existing quartz parts to be welded are positioned by machining positioning grooves, which are prone to cracks and difficult to process, and are not suitable for welding multi-layer quartz parts. Summary of the Invention

[0005] The purpose of the present invention is to solve the problem that the existing quartz parts to be welded are positioned by machining positioning grooves, which is prone to cracks and difficult to machine, and is not suitable for welding multi-layer quartz parts. The present invention provides a multi-welding point positioning device and positioning method that ensures the quality of quartz parts, is easy to operate, and is suitable for welding multi-layer quartz parts.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions: A positioning device for multiple welding points includes two coaxially rotating rods. The two rods measure the relative rotation angle using an angle disc. Both rods are provided with a movable scale rod. One end of the scale rod is provided with a positioning groove with a cylindrical inner wall. The scale rod is arranged perpendicular to the rod body. The scale rod is adjusted to read the same value by a locking member and locked to the rod body. When the angle disc is set to zero and the scale rod readings are the same, the central axes of the cylindrical surfaces on the scale rods coincide. The positioning device for multiple welding points described in this technical solution is used to weld small components on the upper and lower planes of the component to be welded, so that the small components located on the upper and lower planes correspond to each other and are coaxially arranged. There is no need to machine positioning grooves on the component to be welded. The positioning device simultaneously positions the upper and lower rods coaxially arranged on the component to be welded, making operation convenient and eliminating the steps of locating the positioning grooves and machining the positioning grooves. The device ensures the quality of the component to be welded, improves processing accuracy and efficiency, and is suitable for welding multi-layer quartz components, greatly reducing the welding cost of quartz components.

[0007] The working principle of this technical solution is as follows: weld the lower rod on the lower plane of the part to be welded, set the positioning device on one side of the part to be welded, set the rod body vertically and adjust the angle disk to zero; the positioning groove of one scale rod is fitted with the lower rod, and the positioning groove of the other scale rod is located above the upper plane of the part to be welded, adjust the readings of the two scale rods to be consistent and tighten the locking piece; place the upper rod on the upper plane of the part to be welded and fit it into the corresponding positioning groove, and perform preliminary spot welding on the part to be welded and the upper rod.

[0008] Preferably, the scale rod is moved along the axis of the scale rod by a locking member, and the scale rod is moved along the axis of the rod body by the locking member, and the locking member cooperates with the scale of the scale rod to read the reading. The locking member is simultaneously mounted on the rod body and the scale rod and is locked by a bolt.

[0009] Preferably, a positioning block is provided at one end of the scale rod with the positioning groove, and the positioning groove is located on the positioning block. The positioning block is threadedly connected to one end of the scale rod, and positioning blocks of different sizes can be replaced for different small components.

[0010] Preferably, the rod body is arranged vertically, and a vertical detection gauge is provided at the upper end of the rod body. The vertical detection gauge includes a gauge body and a transparent cavity arranged above the gauge body. Liquid is injected into the transparent cavity, forming a bubble above the transparent cavity, and the bubble is located in the middle of the transparent cavity. When the bubble is located in the middle of the transparent cavity, it indicates that the rod body is arranged vertically. After the positioning device is positioned on one side of the part to be welded, the bubble in the vertical detection gauge is checked to see if it is completely within the scale circle. If so, the locking bolt is tightened to secure the positioning device. If not, the rod body is adjusted so that the bubble is completely within the scale circle, and the locking bolt is tightened to secure the positioning device.

[0011] Preferably, a scale ring is provided in the middle of the outer wall of the transparent cavity, and the bubble is located in the scale ring. The scale ring is circular and slightly larger than the bubble, so that the accuracy of the vertical setting of the rod body is controlled within a certain range.

[0012] Preferably, the positioning device further comprises a clamping base, on which the lower end of the rod body is rotatably mounted via a universal joint and is locked via a locking bolt. The clamping base is used to clamp the positioning device on a workbench, making operation convenient.

[0013] Preferably, a telescopic section is provided between the lower end of the rod body and the universal joint to facilitate adjustment of the height of the positioning device.

[0014] Preferably, the scale rod is provided with an air suction channel connected to an air suction mechanism. The air suction channel is connected to the inner wall of the positioning groove and extends along the central axis of the scale rod. After the upper rod is placed on the upper surface of the component to be welded and aligned with the corresponding positioning groove, the air suction mechanism draws air through the air suction channel to adsorb the upper rod into the corresponding positioning groove. This prevents the upper rod from shaking and improves the welding accuracy of the upper rod.

[0015] The method for positioning multiple welding points using the above-mentioned positioning device for multiple welding points includes the following steps in sequence: welding a lower rod to the lower plane of the part to be welded, setting the positioning device on one side of the part to be welded, setting the rod body vertically and adjusting the angle disk to zero; the positioning groove of one scale rod is aligned with the lower rod, and the positioning groove of the other scale rod is located above the upper plane of the part to be welded, adjusting the readings of the two scale rods to be consistent and tightening the locking piece; placing the upper rod on the upper plane of the part to be welded and aligned with the corresponding positioning groove, and performing preliminary spot welding on the part to be welded and the upper rod. The positioning device for multiple welding points described in this technical solution is used to weld small components on the upper and lower planes of the part to be welded, so that the small components located on the upper and lower planes correspond to each other and are coaxially arranged. There is no need to machine positioning grooves on the part to be welded. The upper and lower rods coaxially arranged on the part to be welded are simultaneously positioned by the positioning device, which is convenient to operate and saves the steps of positioning the positioning groove and machining the positioning groove. It ensures the quality of the parts to be welded, improves processing accuracy and efficiency, and is suitable for welding multi-layer quartz parts, greatly reducing the welding cost of quartz parts.

[0016] Preferably, after the positioning device is set on one side of the part to be welded, check whether the bubble in the vertical detection gauge is completely located within the scale circle. If so, tighten the locking bolt to fix the positioning device; if not, adjust the rod body so that the bubble is completely located within the scale circle and tighten the locking bolt to fix the positioning device.

[0017] Preferably, after the upper rod is placed on the upper plane of the component to be welded and fits into the corresponding positioning groove, the suction mechanism sucks air through the suction channel to allow the upper rod to be adsorbed in the corresponding positioning groove.

[0018] Therefore, the present invention has the following beneficial effects: It eliminates the need to machine positioning grooves in the components to be welded. The positioning device simultaneously positions the upper and lower rods coaxially arranged on the components to be welded, facilitating operation and eliminating the steps of positioning and machining the positioning grooves. This ensures the quality of the components to be welded, improves machining accuracy and efficiency, and is suitable for welding multi-layer quartz components, significantly reducing the cost of welding quartz components. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural diagram of embodiment 1 of the present invention.

[0020] Figure 2 This is a structural diagram of the second embodiment of the present invention.

[0021] Figure 3 This is another structural diagram of the second embodiment of the present invention.

[0022] Figure 4This is a structural diagram of a vertical detection table in the second embodiment of the present invention.

[0023] Figure 5 This is a structural diagram of embodiment 3 of the present invention.

[0024] Figure 6 It is a structural schematic diagram of the parts to be welded and the upper rod and the lower rod in the present invention.

[0025] As shown in the picture: Angle plate 1, rod body 2, scale rod 3, Positioning block 4, positioning groove 4.1, Locking piece 5, Vertical detection meter 6, meter body 6.1, transparent cavity 6.2, scale ring 6.3, Clamping base 7, Universal joint 8, locking bolt 8.1, Suction channel 9, component to be welded 10, upper rod 11, lower rod 12. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solutions and advantages of the technical solution embodiments of the present invention clearer, the present invention is further described below in conjunction with the accompanying drawings and specific implementation methods.

[0027] Example 1, as Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 The illustrated device is a positioning device for multiple welding points, comprising two coaxially rotating rods 2, the two rods 2 measuring the relative rotation angle via an angle disk 1, a graduated rod 3 being movably provided on each of the two rods 2, one end of the graduated rod 3 being provided with a positioning groove 4.1 having a cylindrical inner wall, the graduated rod 3 being arranged perpendicular to the rods 2, the graduated rod 3 being adjusted in reading and locked to the rods 2 via a locking member 5, and when the angle disk 1 is adjusted to zero and the graduated rods 3 have the same reading, the central axes of the cylindrical surfaces on the graduated rods 3 coincide.

[0028] When it is necessary to weld small components that are coaxially distributed on the upper and lower planes of the component 10 to be welded, the existing practice is to use a CNC machine tool to machine positioning grooves for each small component on the upper and lower planes of the component 10 to be welded, so that the positioning grooves on the upper and lower planes correspond to each other and are coaxially arranged. After the machining is completed, the small components can be directly placed at the corresponding positions of the component 10 to be welded for welding. In the field of semiconductor quartz parts processing technology, machining positioning grooves on quartz parts will produce cracks, notches and other broken layers, increasing the risk of cracking and scrapping during later fire polishing. For irregular components 10 to be welded, it is difficult to find a positioning reference when machining grooves on the upper and lower planes of the component 10 to be welded, the operation is complicated and the machining accuracy is not high. Moreover, when multiple layers of components 10 to be welded are welded in sequence, the positioning groove method is no longer applicable. The machined positioning grooves will deform under the influence of high temperature and cannot be accurately positioned.

[0029] In order to solve the problem that the existing quartz parts to be welded are positioned by machining positioning grooves to position the welding parts, the positioning grooves machined on the quartz parts are prone to cracks, the machining is difficult, and it is not suitable for welding multi-layer quartz parts. Provided are a multi-welding point positioning device and positioning method that ensures the quality of quartz parts, is easy to operate, and is suitable for welding multi-layer quartz parts.

[0030] A positioning device for multiple welding points in the above embodiment is used to weld small components on the upper and lower surfaces of the component to be welded 10, such as Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 As shown, the small components located on the upper and lower planes correspond to each other and are coaxially arranged. This eliminates the need to machine positioning grooves in the component 10 to be welded. The positioning device simultaneously positions the upper rod 11 and lower rod 12 coaxially arranged on the component 10 to be welded. This facilitates operation and eliminates the steps of locating and machining the positioning grooves. This ensures the quality of the component 10 to be welded, improves machining accuracy and efficiency, and is suitable for welding multi-layer quartz components, significantly reducing the cost of welding quartz components.

[0031] The working principle of this technical solution is as follows: Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6As shown, the lower rod 12 is welded to the lower plane of the part to be welded 10, the positioning device is set on one side of the part to be welded, the rod body 2 is set vertically and the angle disk 1 is adjusted to zero; the positioning groove 4.1 of one of the scale rods 3 is in contact with the lower rod 12, and the positioning groove 4.1 of the other scale rod 3 is located above the upper plane of the part to be welded 10, the readings of the two scale rods 3 are adjusted to be consistent and the locking piece 5 is tightened; the upper rod 11 is placed on the upper plane of the part to be welded 10 and is in contact with the corresponding positioning groove 4.1, and the part to be welded 10 and the upper rod 11 are preliminarily spot-welded.

[0032] Further optimize the scale bar 3, such as Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 As shown, the scale rod 3 moves along the axis of the scale rod 3 through the locking member 5, and the scale rod 3 moves along the axis of the rod body 2 through the locking member 5. The locking member 5 cooperates with the scale of the scale rod 3 to read the scale. The locking member 5 is simultaneously mounted on the rod body 2 and the scale rod 3 and locked by a bolt.

[0033] Further optimize the positioning groove 4.1, such as Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 As shown, one end of the scale rod 3 having a positioning groove 4.1 is provided with a positioning block 4, and the positioning groove 4.1 is located on the positioning block 4. The positioning block 4 is threadedly connected to one end of the scale rod 3, and the positioning block 4 of different sizes can be replaced for different small components.

[0034] Further, such as Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 As shown, it also includes a clamping base 7, the lower end of the rod body 2 located below is rotatably arranged on the clamping base 7 through a universal joint 8 and is locked by a locking bolt 8.1. The clamping base 7 is used to clamp the positioning device on the workbench for easy operation.

[0035] Furthermore, a telescopic section is provided between the lower end of the rod body 2 and the universal joint 8 to facilitate adjustment of the height of the positioning device.

[0036] Example 2, as Figure 2 、 Figure 3 、 Figure 4The illustrated device for positioning multiple welding points includes two coaxially rotating rods 2. The two rods 2 measure their relative rotation angle via an angle disc 1. A graduated rod 3 is movably mounted on each rod 2. One end of the graduated rod 3 is provided with a positioning slot 4.1 having a cylindrical inner wall. The graduated rod 3 is positioned perpendicular to the rod 2. The graduated rod 3 is adjusted and locked to the rod 2 via a locking member 5. When the angle disc 1 is zeroed and the graduated rods 3 have the same reading, the central axes of the cylindrical surfaces on the graduated rods 3 coincide. The rods 2 are positioned vertically, with a vertical detection gauge 6 positioned at the upper end of the upper rod 2. This gauge 6 includes a gauge body 6.1 and a transparent cavity 6.2 positioned above the gauge body 6.1. Liquid is injected into the transparent cavity 6.2, forming bubbles above the transparent cavity 6.2, with the bubbles located in the middle of the transparent cavity 6.2. When the bubbles are located in the middle of the transparent cavity 6.2, the rods 2 are positioned vertically. After setting the positioning device on one side of the part to be welded, check whether the bubble in the vertical test gauge 6 is completely located within the scale circle 6.3. If so, tighten the locking bolt 8.1 to fix the positioning device; if not, adjust the rod body 2 so that the bubble is completely located within the scale circle 6.3 and tighten the locking bolt 8.1 to fix the positioning device.

[0037] The transparent cavity 6.2 is further optimized, such as Figure 2 、 Figure 3 、 Figure 4 As shown, a graduated ring 6.3 is provided in the middle of the outer wall of the transparent cavity 6.2, and the bubble is located inside the graduated ring 6.3. The graduated ring 6.3 is circular and slightly larger than the bubble, so that the vertical setting accuracy of the rod body 2 is controlled within a certain range.

[0038] The working principle of this technical solution is as follows: Figure 2 、 Figure 3 、 Figure 4 As shown, the lower rod 12 is welded to the lower plane of the part to be welded 10, the positioning device is set on one side of the part to be welded, the rod body 2 is set vertically and the angle disk 1 is adjusted to zero, and the bubble in the vertical detection gauge 6 is detected to be completely located in the scale circle 6.3. If so, the locking bolt 8.1 is tightened to fix the positioning device; if not, the rod body 2 is adjusted so that the bubble is completely located in the scale circle 6.3 and the locking bolt 8.1 is tightened to fix the positioning device; the positioning groove 4.1 of one scale rod 3 is in contact with the lower rod 12, and the positioning groove 4.1 of the other scale rod 3 is located above the upper plane of the part to be welded 10, the readings of the two scale rods 3 are adjusted to be consistent and the locking piece 5 is tightened; the upper rod 11 is placed on the upper plane of the part to be welded 10 and is in contact with the corresponding positioning groove 4.1, and the part to be welded 10 and the upper rod 11 are preliminarily spot welded.

[0039] Further optimize the scale bar 3, such as Figure 2 、 Figure 3 、 Figure 4As shown, the scale rod 3 moves along the axis of the scale rod 3 through the locking member 5, and the scale rod 3 moves along the axis of the rod body 2 through the locking member 5. The locking member 5 cooperates with the scale of the scale rod 3 to read the scale. The locking member 5 is simultaneously mounted on the rod body 2 and the scale rod 3 and locked by a bolt.

[0040] Further optimize the positioning groove 4.1, such as Figure 2 、 Figure 3 、 Figure 4 As shown, one end of the scale rod 3 having a positioning groove 4.1 is provided with a positioning block 4, and the positioning groove 4.1 is located on the positioning block 4. The positioning block 4 is threadedly connected to one end of the scale rod 3, and the positioning block 4 of different sizes can be replaced for different small components.

[0041] Further, such as Figure 2 、 Figure 3 、 Figure 4 As shown, it also includes a clamping base 7, the lower end of the rod body 2 located below is rotatably arranged on the clamping base 7 through a universal joint 8 and is locked by a locking bolt 8.1. The clamping base 7 is used to clamp the positioning device on the workbench for easy operation.

[0042] Further, such as Figure 2 、 Figure 3 、 Figure 4 As shown, a telescopic section is provided between the lower end of the rod body 2 and the universal joint 8 to facilitate adjustment of the height of the positioning device.

[0043] In summary, the present invention has the following beneficial effects: It eliminates the need to machine positioning grooves in the component 10 to be welded. Instead, the positioning device simultaneously positions the upper rod 11 and the lower rod 12 coaxially disposed on the component 10 to be welded. This facilitates operation and eliminates the steps of locating and machining the positioning grooves. This ensures the quality of the component 10 to be welded, improves machining accuracy and efficiency, and is suitable for welding multi-layer quartz components, significantly reducing the cost of welding quartz components.

[0044] Example 3, as Figure 5 The device, shown here, is a positioning device for multiple welding points. It includes two coaxially rotating rods 2, whose relative rotation angle is measured by an angle disc 1. A graduated rod 3 is mounted on each rod 2. One end of the graduated rod 3 is provided with a positioning slot 4.1 with a cylindrical inner wall. The graduated rod 3 is positioned perpendicular to the rod 2 and is locked to the rod 2 using a locking member 5 to adjust the reading. When the angle disc 1 is zeroed and the readings on the graduated rods 3 are the same, the central axes of the cylindrical surfaces on the graduated rods 3 coincide. An air intake channel 9, connected to an air intake mechanism, is located within the graduated rod 3. The air intake channel 9 connects to the inner wall of the positioning slot 4.1 and extends along the central axis of the graduated rod 3.

[0045] The working principle of this technical solution is as follows: Figure 5 As shown, the lower rod 12 is welded on the lower plane of the part to be welded 10, the positioning device is set on one side of the part to be welded, the rod body 2 is set vertically and the angle disk 1 is adjusted to zero; the positioning groove 4.1 of one of the scale rods 3 is in contact with the lower rod 12, and the positioning groove 4.1 of the other scale rod 3 is located above the upper plane of the part to be welded 10, the readings of the two scale rods 3 are adjusted to be consistent and the locking piece 5 is tightened; the upper rod 11 is placed on the upper plane of the part to be welded 10 and is in contact with the corresponding positioning groove 4.1, the suction mechanism draws air through the suction channel 9 so that the upper rod 11 is adsorbed in the corresponding positioning groove 4.1, and the part to be welded 10 and the upper rod 11 are preliminarily spot-welded.

[0046] In the above embodiment, after the upper rod 11 is placed on the upper surface of the component 10 to be welded and aligned with the corresponding positioning groove 4.1, the suction mechanism draws air through the suction channel 9 to adsorb the upper rod 11 into the corresponding positioning groove 4.1, thereby preventing the upper rod 11 from shaking and improving the welding accuracy of the upper rod 11.

[0047] Further optimize the scale bar 3, such as Figure 5 As shown, the scale rod 3 moves along the axis of the scale rod 3 through the locking member 5, and the scale rod 3 moves along the axis of the rod body 2 through the locking member 5. The locking member 5 cooperates with the scale of the scale rod 3 to read the scale. The locking member 5 is simultaneously mounted on the rod body 2 and the scale rod 3 and locked by a bolt.

[0048] Further optimize the positioning groove 4.1, such as Figure 5 As shown, one end of the scale rod 3 having a positioning groove 4.1 is provided with a positioning block 4, and the positioning groove 4.1 is located on the positioning block 4. The positioning block 4 is threadedly connected to one end of the scale rod 3, and the positioning block 4 of different sizes can be replaced for different small components.

[0049] Further, such as Figure 5 As shown, it also includes a clamping base 7, the lower end of the rod body 2 located below is rotatably arranged on the clamping base 7 through a universal joint 8 and is locked by a locking bolt 8.1. The clamping base 7 is used to clamp the positioning device on the workbench for easy operation.

[0050] Further, such as Figure 5 As shown, a telescopic section is provided between the lower end of the rod body 2 and the universal joint 8 to facilitate adjustment of the height of the positioning device.

[0051] In summary, the present invention has the following beneficial effects: It eliminates the need to machine positioning grooves in the component 10 to be welded. Instead, the positioning device simultaneously positions the upper rod 11 and the lower rod 12 coaxially disposed on the component 10 to be welded. This facilitates operation and eliminates the steps of locating and machining the positioning grooves. This ensures the quality of the component 10 to be welded, improves machining accuracy and efficiency, and is suitable for welding multi-layer quartz components, significantly reducing the cost of welding quartz components.

[0052] Example 4, as Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 The illustrated method for positioning multiple welding points includes the following steps in sequence: welding a lower rod 12 to the lower plane of a component 10 to be welded, placing a positioning device on one side of the portion to be welded, with the rod body 2 set vertically and the angle disc 1 adjusted to zero; aligning the positioning groove 4.1 of one scale rod 3 with the lower rod 12, and positioning the positioning groove 4.1 of the other scale rod 3 above the upper plane of the component 10 to be welded, adjusting the readings of the two scale rods 3 to be consistent, and tightening the locking member 5; placing the upper rod 11 on the upper plane of the component 10 to be welded and aligning the corresponding positioning groove 4.1, and performing preliminary spot welding on the component 10 to be welded and the upper rod 11. The positioning device for multiple welding points in the above embodiment is used to weld small components on the upper and lower planes of the component 10 to be welded, so that the small components located on the upper and lower planes correspond to each other and are coaxially arranged. The positioning device simultaneously positions the upper rod 11 and the lower rod 12 coaxially disposed on the component 10 to be welded, eliminating the need to machine a positioning groove on the component 10 to be welded. This facilitates operation and eliminates the steps of locating and machining the positioning groove. This ensures the quality of the component 10 to be welded, improves machining accuracy and efficiency, and is suitable for welding multi-layer quartz components, significantly reducing the cost of welding quartz components.

[0053] On the basis of the fourth embodiment, in order to solve the problem that the existing quartz parts to be welded are positioned by machining positioning grooves, such as Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6As shown, machining positioning grooves on quartz components is prone to cracks and difficult to machine, and is not suitable for the welding of multi-layer quartz components. The lower rod 12 is welded on the lower plane of the component 10 to be welded, and the positioning device is set on one side of the part to be welded. The rod body 2 is set vertically and the angle disk 1 is zeroed. Check whether the bubble in the vertical detection gauge 6 is completely located in the scale ring 6.3. If so, tighten the locking bolt 8.1 to fix the positioning device; if not, adjust the rod body 2 so that the bubble is completely located in the scale ring 6.3 and tighten the locking bolt 8.1 to fix the positioning device; the positioning groove 4.1 of one scale rod 3 is aligned with the lower rod 12, and the positioning groove 4.1 of the other scale rod 3 is located above the upper plane of the component 10 to be welded. Adjust the readings of the two scale rods 3 to be consistent and tighten the locking piece 5; place the upper rod 11 on the upper plane of the component 10 to be welded and fit it into the corresponding positioning groove 4.1, and perform preliminary spot welding on the component 10 to be welded and the upper rod 11.

[0054] In summary, the present invention has the following beneficial effects: It eliminates the need to machine positioning grooves in the component 10 to be welded. Instead, the positioning device simultaneously positions the upper rod 11 and the lower rod 12 coaxially disposed on the component 10 to be welded. This facilitates operation and eliminates the steps of locating and machining the positioning grooves. This ensures the quality of the component 10 to be welded, improves machining accuracy and efficiency, and is suitable for welding multi-layer quartz components, significantly reducing the cost of welding quartz components.

[0055] On the basis of Example 4, in order to solve the problem that the existing quartz parts to be welded are positioned by machining positioning grooves to position the welding parts, the positioning grooves machined on the quartz parts are prone to cracks, and the processing is difficult, and it is not suitable for welding multi-layer quartz parts, the lower rod 12 is welded on the lower plane of the part to be welded 10, and the positioning device is set on one side of the part to be welded, the rod body 2 is set vertically and the angle disk 1 is adjusted to zero; the positioning groove 4.1 of one scale rod 3 is in contact with the lower rod 12, and the positioning groove 4.1 of the other scale rod 3 is located above the upper plane of the part to be welded 10, the readings of the two scale rods 3 are adjusted to be consistent and the locking piece 5 is tightened; the upper rod 11 is placed on the upper plane of the part to be welded 10 and is in contact with the corresponding positioning groove 4.1, and the suction mechanism draws air through the suction channel 9 so that the upper rod 11 is adsorbed in the corresponding positioning groove 4.1, and the part to be welded 10 and the upper rod 11 are preliminarily spot welded.

[0056] In summary, the present invention has the following beneficial effects: It eliminates the need to machine positioning grooves in the component 10 to be welded. Instead, the positioning device simultaneously positions the upper rod 11 and the lower rod 12 coaxially disposed on the component 10 to be welded. This facilitates operation and eliminates the steps of locating and machining the positioning grooves. This ensures the quality of the component 10 to be welded, improves machining accuracy and efficiency, and is suitable for welding multi-layer quartz components, significantly reducing the cost of welding quartz components.

[0057] The specific embodiments described above are only preferred embodiments of the present invention and are not intended to limit the specific implementation scope of the present invention. All equivalent changes made to the shape and structure of the present invention should be included in the protection scope of the present invention.

Claims

1. A positioning device for multiple welding points, characterized in that: It includes two coaxially rotating rod bodies, which measure the relative rotation angle through an angle disk. Both rod bodies are movably provided with scale rods, one end of which is provided with a positioning groove with a cylindrical inner wall. The scale rod is vertically arranged to the rod body. The scale rod is adjusted to a reading through a locking piece and locked on the rod body. When the angle disk is adjusted to zero and the scale rod readings are the same, the central axes of the cylindrical surfaces on the scale rods coincide.

2. A positioning device for multiple welding points according to claim 1, characterized in that: The scale rod moves along the axis direction of the scale rod through the locking piece, and the scale rod moves along the axis direction of the rod body through the locking piece. The locking piece cooperates with the scale of the scale rod and reads the value.

3. A positioning device for multiple welding points according to claim 1 or 2, characterized in that: One end of the scale rod provided with a positioning groove is provided with a positioning block, and the positioning groove is located on the positioning block.

4. A positioning device for multiple welding points according to claim 2, characterized in that: The rod body is arranged vertically, and a vertical detection gauge is arranged at the upper end of the rod body. The vertical detection gauge includes a gauge body and a transparent cavity arranged above the gauge body. Liquid is injected into the transparent cavity and bubbles are formed above the transparent cavity. The bubbles are located in the middle of the transparent cavity.

5. A positioning device for multiple welding points according to claim 4, characterized in that: A scale circle is provided in the middle of the outer wall of the transparent cavity, and the bubble is located in the scale circle.

6. A positioning device for multiple welding points according to claim 5, characterized in that: It also includes a clamping base, on which the lower end of the rod body located below is rotatably arranged through a universal joint and is locked by a locking bolt.

7. A positioning device for multiple welding points according to claim 1 or 2 or 4 or 5 or 6, characterized in that: An air suction channel connected to an air suction mechanism is provided in the scale rod, the air suction channel is connected to the inner wall of the positioning groove, and the air suction channel extends along the central axis of the scale rod.

8. A method for positioning multiple welding points using the positioning device for multiple welding points according to any one of claims 1 to 7, characterized in that: The method comprises the following steps in sequence: welding a lower rod on the lower plane of a component to be welded, setting a positioning device on one side of the component to be welded, setting the rod body vertically and adjusting the angle disk to zero; the positioning groove of one scale rod is fitted with the lower rod, and the positioning groove of the other scale rod is located above the upper plane of the component to be welded, adjusting the readings of the two scale rods to be consistent and tightening the locking piece; placing the upper rod on the upper plane of the component to be welded and fitting the corresponding positioning groove, and performing preliminary spot welding on the component to be welded and the upper rod.

9. A method for positioning multiple welding points according to claim 8, characterized in that: After setting the positioning device on one side of the part to be welded, check whether the bubble in the vertical detection gauge is completely located within the scale circle. If so, tighten the locking bolt to fix the positioning device; if not, adjust the rod body so that the bubble is completely located within the scale circle and tighten the locking bolt to fix the positioning device.

10. A method for positioning multiple welding points according to claim 8, characterized in that: After the upper rod is placed on the upper plane of the component to be welded and fits into the corresponding positioning groove, the suction mechanism sucks air through the suction channel to adsorb the upper rod into the corresponding positioning groove.

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