Automatic unlocking method for a rotary welding fixture

Abstract

The present application relates to a kind of automatic unlocking methods of rotary welding tool, belong to electron beam welding technical field, solve the problem that rotary welding tool of existing electron beam welding cannot be automatically unlocked when rotating;The automatic unlocking method of the rotary welding tool steps include adjusting the position of the part in the welding tool, clamping the two welding pieces to be welded, butting the two welding pieces, the two welding pieces are close, the welding tool is powered off, the welding tool is lifted and transferred, the rotation function of the active side to the clamping module is locked by the anti-rotation component, the welding tool is seated on the electron beam welding platform, and the anti-rotation component is automatically unlocked.The anti-rotation module of the present application is designed by Z-shaped frame, pressing block, down spring and switch rod, so that the anti-rotation component can avoid the rotation of the first rotating shaft during the electron beam welding in the transfer process, and the whole process is automatically realized without manual intervention, and the rotation of the first rotating shaft can still be avoided during the transfer breakpoint process of the welding tool.

Description

Technical Field

[0001] This invention relates to the field of electron beam welding technology, and in particular to an automatic unlocking method for a rotating welding fixture. Background Technology

[0002] Electron beam welding is widely used in many industries such as aerospace, nuclear energy, defense and military, automobiles and electrical instruments because it has the advantages of not requiring welding rods, being less prone to oxidation, having good process repeatability and small thermal deformation.

[0003] For products with annular welds, electron beam welding typically employs a welding fixture with a rotating shaft. The product is clamped and fixed onto the fixture, which is then transferred to the electron beam platform. A positioner on the platform clamps the rotating shaft of the fixture, causing it to rotate and complete the annular weld. To achieve full automation of the welding process, each product must be positioned consistently within the electron beam chamber. Therefore, the rotating shaft of the welding fixture must not rotate during product transfer. However, once the fixture is placed on the electron beam platform, the shaft must rotate with the positioner. This necessitates an automatic unlocking method for the rotating welding fixture, ensuring that the shaft remains stationary during transfer and automatically unlocks when placed on the electron beam platform. Summary of the Invention

[0004] Based on the above analysis, the present invention aims to provide an automatic unlocking method for a rotating welding fixture, in order to solve the problem that the rotating shaft of the existing electron beam welding rotating welding fixture cannot be automatically unlocked during transport.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] An automatic unlocking method for a rotating welding fixture, comprising the following steps:

[0007] Step 1, adjust the position of the parts inside the welding fixture:

[0008] When the welding fixture is powered on, the positions of the passive lateral clamping module and the support follow-up module are calculated based on the position of the workpiece. The positions of the passive lateral clamping module and the support follow-up module are then adjusted through the welding platform module based on the calculated positions.

[0009] Step 2: Clamp the two parts to be welded.

[0010] Step 2.11: The upper retaining ring assembly, which is close to the active lateral gripping module, is held by a robotic arm;

[0011] Step 2.12: The first retaining ring pin releases its restriction on the upper retaining ring assembly near the active lateral clamping module;

[0012] Step 2.13: Remove the upper retaining ring assembly near the active lateral clamping module;

[0013] Step 2.14: The first welded part is picked up by the robotic arm and transferred between the active lateral gripping module and the support follow-up module;

[0014] Step 2.15: The positioning element inside the first welded component mates with the first positioning block and the first product positioning pin;

[0015] Step 2.16: The first clamping mechanism clamps the welded part, and the lower retaining ring assembly near the active lateral clamping module is pressed against the lower part of the first welded part;

[0016] Step 2.17: The robotic arm releases the first welded part and resets the upper retaining ring assembly near the active lateral gripping module;

[0017] Step 2.21: The upper retaining ring assembly close to the passive lateral gripping module is gripped by the robotic arm;

[0018] Step 2.22: The first retaining ring pin releases its restriction on the upper retaining ring assembly near the passive lateral clamping module;

[0019] Step 2.23: Remove the upper retaining ring assembly near the passive lateral clamping module;

[0020] Step 2.24: The robotic arm picks up the second welded part and transfers it between the passive lateral clamping module and the support follow-up module;

[0021] Step 2.25: The positioning element inside the second welded component mates with the second positioning block and the second product positioning pin;

[0022] Step 2.26: The second clamping mechanism clamps the welded part, and the lower retaining ring assembly near the passive lateral clamping module is pressed against the lower part of the second welded part;

[0023] Step 2.27: The robotic arm releases the second welded part and resets the upper retaining ring assembly near the passive lateral clamping module;

[0024] Step 3, connect the two welded parts, and press them tightly together:

[0025] Adjust the position of the second welded part, and the passive lateral clamping module and the support follower module that are in contact with the second welded part move to make the first welded part and the second welded part fit together tightly;

[0026] Step 4: Power off the welding fixture.

[0027] The power connector that mates with the power plug is pulled out of the power plug;

[0028] Step 5: Lift and transfer the welding fixture.

[0029] The welding fixtures are lifted and transferred using an AGV (Automated Guided Vehicle) cart.

[0030] Step 6: The anti-rotation component locks the rotation function of the active lateral clamping module.

[0031] Step 6.11, switch rod moves down: When the welding fixture is lifted, the lower limit of the switch rod disappears, and the downward spring drives the switch rod to move downward;

[0032] Step 6.12, Z-shaped frame moves down: The Z-shaped frame is fixedly connected to the switch rod, and moves down under the action of the switch rod;

[0033] Step 6.13: The pressure block presses down and locks the first rotating shaft; the Z-shaped frame drives the fixedly connected pressure block to move down, the pressure block contacts the first rotating shaft and provides downward pressure, and the first rotating shaft locks;

[0034] Step 7: Place the welding fixture on the electron beam welding platform.

[0035] The AGV (Automated Guided Vehicle) lifts and transfers the welding fixture to the electron beam welding platform;

[0036] Step 8, the anti-rotation component automatically unlocks:

[0037] Step 8.11, switch rod moves upward: After the welding fixture is placed on the electron beam platform, due to the limit below the switch rod, the welding fixture moves upward as a whole by gravity, and the switch rod moves upward relative to the welding fixture due to the pressure of the limit below pressing down the spring.

[0038] Step 8.12, Z-shaped frame moves upward: The Z-shaped frame is fixedly connected to the switch rod, and the Z-shaped frame moves upward under the action of the switch rod;

[0039] Step 8.13, the first rotating shaft is unlocked; the Z-shaped frame drives the fixedly connected pressure block to move upward, the pressure block is no longer in contact with the first rotating shaft, the friction force exerted by the pressure block on the first rotating shaft disappears, and the first rotating shaft is unlocked.

[0040] The welding fixture described in step 1 includes a welding platform module, an active lateral clamping module, a passive lateral clamping module, a support follow-up module, and an anti-rotation component; the active lateral clamping module is fixed on one side of the upper end of the welding platform module, and a slidable passive lateral clamping module is installed on the other side of the upper end of the welding platform module; two slidable support follow-up modules are installed in the middle of the welding platform module.

[0041] Furthermore, the welding platform module includes a platform frame, a platform cover plate, a fixed mounting plate, a sliding platform, linear guide rails, sliders, and transmission components. The platform frame has a platform cover plate on its upper surface, and there are gaps between the platform cover plate and the front and rear parts of the platform frame. A fixed mounting plate is provided on one side of the platform frame. Linear guide rails are installed on both the front and rear parts of the platform frame. Three sets of sliders are installed inside the linear guide rails. A sliding platform is installed on the upper end of each set of sliders. The sliding platform is hollow, and the hollow part of the sliding platform passes through the platform cover plate. Three sets of transmission components are installed inside the platform frame.

[0042] Furthermore, the active lateral clamping module is mounted on the fruit tree fixing plate.

[0043] Furthermore, the sliding platform furthest from the fixed mounting plate is connected to the passive lateral clamping module.

[0044] Furthermore, the welding platform module also includes lifting rings, which are located at the front and rear of the platform frame.

[0045] Furthermore, the welding platform module also includes a girder gripping and positioning hole, which is formed at the front and rear of the platform frame.

[0046] Furthermore, the welding platform module also includes column mounting and positioning holes, which are formed at the four lower corners of the platform frame.

[0047] Furthermore, the welding platform module also includes an AGV trolley transfer and positioning hole, which is located in the lower part of the platform frame.

[0048] Furthermore, the active lateral clamping module includes a first connecting seat, a first rotary support, a first support ring cover, a first positioning block, a first product positioning pin, a first clamping mechanism, a first rotating shaft, and a first rotary positioning pin; the first connecting seat is fixed on one side of the first rotary support, and the first support ring cover is installed on the other side of the first rotary support, and the first rotating shaft, the first positioning block, the first product positioning pin, and the first rotary positioning pin are installed on the first support ring cover.

[0049] Furthermore, the first clamping mechanism includes a first telescopic rod and a first conforming member.

[0050] Furthermore, the anti-rotation component is installed in the first connecting seat via a supporting rib. The anti-rotation component includes a pressure block, a Z-shaped frame, a reinforcing rib, a slide, a slide rod, a switch rod, a pressure spring, an adjusting bolt, a support plate, and a pressure pad. The slide is fixed in the middle of the Z-shaped frame, and the slide is slidably connected to the slide rod. The pressure block is fixed in the upper part of the Z-shaped frame, and the switch rod is fixed in the lower part of the Z-shaped frame. A pressure pad that can slide up and down is installed in the upper end of the switch rod. The pressure spring is sleeved on the outside of the switch rod. The upper and lower ends of the pressure spring contact the pressure pad and the Z-shaped frame, respectively. The upper end of the pressure pad contacts the adjusting bolt. The adjusting bolt is threadedly connected to the support plate, and the support plate is fixedly connected to the active lateral clamping module.

[0051] Furthermore, reinforcing ribs are installed at the corners of the Z-shaped frame.

[0052] Furthermore, a power plug is installed on one side of the first connector.

[0053] Furthermore, the passive lateral clamping module includes a second connecting seat, a second rotary support, a second support ring, a second positioning block, a second product positioning pin, a second clamping mechanism, and a second rotating shaft; the second connecting seat is fixed on one side of the second rotary support, and the second support ring is installed on the other side of the second rotary support. The second rotating shaft is installed in the middle of the second support ring, and the second positioning block and the second product positioning pin are installed inside the second support ring.

[0054] Furthermore, the second clamping mechanism includes a second telescopic rod and a second conformal member.

[0055] Furthermore, the support follow-up module includes a third connecting seat, a lower retaining ring assembly, an upper retaining ring assembly, a power supply component, and a first retaining ring pin; the lower retaining ring assembly is installed on the third connecting seat, the lower retaining ring assembly is connected to the upper retaining ring assembly through the first retaining ring pin, and the first retaining ring pin is installed on one side of the third connecting seat.

[0056] The above technical solution has at least one of the following beneficial effects:

[0057] (1) The active lateral clamping module and the support follow-up module of the present invention clamp both sides of a welding part, and the passive lateral clamping module and the support follow-up module clamp both sides of another welding part, so as to realize the docking of two welding parts, so that when facing irregular tubular welding parts, both sides of each welding part are clamped, avoiding the problem that a single clamping part may be unstable when facing irregular tubular welding parts, and avoiding welding deformation;

[0058] (2) Based on preventing welding deformation, the present invention adopts a design of one-time welding of circumferential weld, which ensures assembly quality and high welding efficiency.

[0059] (3) The anti-rotation module of the present invention, through the design of Z-shaped frame, pressure block, pressure spring and switch rod, enables the anti-rotation component to automatically rise when rotation is required during the ring welding process of the workpiece in electron beam welding, without affecting the rotation of the rotating shaft. It can also press the first rotating shaft when the welding fixture is assembling or transferring the welding parts, thus preventing the rotation of the first rotating shaft. The whole process is automatic and requires no manual intervention. The first rotating shaft can still be prevented from rotating during the transfer break point of the welding fixture.

[0060] In this invention, the above-described technical solutions can be combined with each other to achieve more preferred combinations. Other features and advantages of this invention will be set forth in the following description, and some advantages may become apparent from the description or be learned by practicing the invention. The objects and other advantages of this invention can be realized and obtained from what is particularly pointed out in the description and drawings. Attached Figure Description

[0061] The accompanying drawings are for illustrative purposes only and are not intended to limit the invention. Throughout the drawings, the same reference numerals denote the same parts.

[0062] Figure 1 This is a schematic diagram of the rotating welding fixture of Embodiment 2 of the present invention.

[0063] Figure 2 This is a schematic diagram of the platform cover plate of the rotating welding fixture in Embodiment 2 of the present invention.

[0064] Figure 3 This is a schematic diagram of the sliding platform of the rotating welding fixture in Embodiment 2 of the present invention.

[0065] Figure 4 This is a schematic diagram of the lifting ring of the rotating welding fixture in Embodiment 2 of the present invention.

[0066] Figure 5 This is a schematic diagram of the structure of the AGV trolley transfer positioning hole of the rotating welding fixture in Embodiment 2 of the present invention.

[0067] Figure 6 This is a schematic diagram of the active lateral clamping module of the rotating welding fixture in Embodiment 2 of the present invention.

[0068] Figure 7 This is a schematic diagram of the internal structure of the active lateral clamping module of the rotating welding fixture in Embodiment 2 of the present invention.

[0069] Figure 8 This is a schematic diagram of the anti-rotation component of the rotating welding fixture in Embodiment 2 of the present invention.

[0070] Figure 9 This is a cross-sectional view of the anti-rotation component of the rotating welding fixture in Embodiment 2 of the present invention.

[0071] Figure 10 This is a schematic diagram of the structure of the first rotary positioning pin of the rotary welding fixture in Embodiment 2 of the present invention.

[0072] Figure 11 This is a schematic diagram of the structure of the first product positioning pin of the rotating welding fixture in Embodiment 2 of the present invention.

[0073] Figure 12 This is a schematic diagram of the first clamping mechanism of the rotating welding fixture in Embodiment 2 of the present invention.

[0074] Figure 13 This is a schematic diagram of the structure of the first rotating shaft of the rotating welding fixture in Embodiment 2 of the present invention.

[0075] Figure 14 This is one of the positional relationship diagrams of the sliding platform and platform cover plate of the rotating welding fixture in Embodiment 2 of the present invention.

[0076] Figure 15 This is the second diagram showing the positional relationship between the sliding platform and the platform cover plate of the rotating welding fixture in Embodiment 2 of the present invention.

[0077] Figure 16 This is one of the structural schematic diagrams of the support follow-up module of the rotating welding fixture in Embodiment 2 of the present invention.

[0078] Figure 17 This is the second structural schematic diagram of the support follow-up module of the rotating welding fixture in Embodiment 2 of the present invention.

[0079] Figure 18 This is a schematic diagram of the passive lateral clamping module of the rotating welding fixture in Embodiment 2 of the present invention.

[0080] Figure 19 This is a flowchart of the automatic unlocking method for the rotating welding fixture of the present invention.

[0081] Figure label:

[0082] 1. Welding platform module; 2. Active lateral clamping module; 3. Passive lateral clamping module; 4. Support follow-up module;

[0083] 101. Platform frame; 102. Platform cover plate; 103. Fixed mounting plate; 104. Sliding platform; 105. Linear guide rail; 106. Slider; 107. Transmission assembly; 108. Lifting ring; 109. Handle gripping positioning hole; 110. Column mounting positioning hole; 111. AGV trolley transfer positioning hole;

[0084] 201. First connecting seat; 202. First slewing support; 203. First support ring cover; 204. First positioning block; 205. First product positioning pin; 206. First clamping mechanism; 207. First rotating shaft; 208. Support rib; 209. Anti-rotation component; 210. Power connector; 211. First rotary positioning pin;

[0085] 20901. Pressure block; 20902. Z-shaped frame; 20903. Reinforcing rib; 20904. Slide; 20905. Slide rod; 20906. Switch rod; 20907. Downward pressure spring; 20908. Adjusting bolt; 20909. Support plate; 20910. Pressure pad;

[0086] 301. Second connecting seat; 302. Second slewing support; 303. Second support ring; 304. Second positioning block; 305. Second product positioning pin; 306. Second clamping mechanism; 307. Second rotating shaft;

[0087] 401. Third connector, 402. Lower retaining ring assembly, 403. Upper retaining ring assembly, 404. Power supply component, 405. First retaining ring pin. Detailed Implementation

[0088] Preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, which form part of this application and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not intended to limit the scope of the present invention.

[0089] Example 1

[0090] A specific embodiment of the present invention discloses an automatic unlocking method for a rotating welding fixture, such as... Figure 19 As shown, the specific steps include:

[0091] Step 1, adjust the position of the parts inside the welding fixture:

[0092] When the welding fixture is powered on, the positions of the passive lateral clamping module 3 and the support follow-up module 4 are calculated based on the position of the welded part. The positions of the passive lateral clamping module 3 and the support follow-up module 4 are then adjusted through the welding platform module 1 based on the calculated positions.

[0093] Step 2: Clamp the two parts to be welded.

[0094] Step 2.11: The upper retaining ring assembly 403, which is close to the active lateral gripping module 2, is held by a robotic arm;

[0095] Step 2.12: The first retaining ring pin 405 releases the restriction on the upper retaining ring assembly 403 near the active lateral clamping module 2;

[0096] Step 2.13, remove the upper retaining ring assembly 403 near the active lateral clamping module 2;

[0097] Step 2.14: The first welded part is picked up by the robotic arm and transferred between the active lateral clamping module 2 and the support follow-up module 4;

[0098] Step 2.15: The positioning element inside the first welded component docks with the first positioning block 204 and the first product positioning pin 205;

[0099] Step 2.16: The first clamping mechanism 206 clamps the welded part, and the lower retaining ring assembly 402 near the active lateral clamping module 2 is pressed against the lower part of the first welded part;

[0100] Step 2.17: The robotic arm releases the first welded part and resets the upper retaining ring assembly 403 that is close to the active lateral gripping module 2;

[0101] Step 2.21: The upper retaining ring assembly 403, which is close to the passive lateral gripping module 3, is gripped by the robotic arm;

[0102] Step 2.22: The first retaining ring pin 405 releases the restriction on the upper retaining ring assembly 403 near the passive lateral clamping module 3;

[0103] Step 2.23: Remove the upper retaining ring assembly 403 that is close to the passive lateral clamping module 3;

[0104] Step 2.24: The second welded part is picked up by the robotic arm and transferred between the passive lateral clamping module 3 and the support follow-up module 4;

[0105] Step 2.25: The positioning element inside the second welded component docks with the second positioning block 304 and the second product positioning pin 305;

[0106] Step 2.26: The first clamping mechanism 206 clamps the welded part, and the lower retaining ring assembly 402 near the passive lateral clamping module 3 is pressed against the lower part of the first welded part;

[0107] Step 2.27: The robotic arm releases the first welded part and resets the upper retaining ring assembly 403 that is close to the passive lateral clamping module 3;

[0108] Step 3, connect the two welded parts, and press them tightly together:

[0109] Adjust the position of the second welded part, and the passive lateral clamping module 3 and the support follower module 4 that are in contact with the second welded part move so that the first welded part and the second welded part are pressed tightly together.

[0110] Step 4: Power off the welding fixture.

[0111] The power supply head that mates with the power connector 210 is pulled out of the power connector 210;

[0112] Step 5: Lift and transfer the welding fixture.

[0113] The welding fixtures are lifted and transferred using an AGV (Automated Guided Vehicle) cart.

[0114] Step 6, the anti-rotation component 209 locks the rotation function of the active lateral clamping module 2:

[0115] Step 6.11, switch rod 20906 moves down: when the welding fixture is lifted, the lower limit of switch rod 20906 disappears, and the lower spring 20907 drives switch rod 20906 to move down;

[0116] Step 6.12, Z-shaped frame 20902 moves down: Z-shaped frame 20902 is fixedly connected to switch rod 20906, and Z-shaped frame 20902 moves down under the action of switch rod 20906;

[0117] Step 6.13: Press block 20901 presses down on first rotating shaft 207 and locks it; Z-shaped frame 20902 drives the fixedly connected press block 20901 to move down, press block 20901 contacts first rotating shaft 207 and provides downward pressure, first rotating shaft 207 is locked;

[0118] Step 7: Place the welding fixture on the electron beam welding platform.

[0119] The AGV (Automated Guided Vehicle) lifts and transfers the welding fixture to the electron beam welding platform;

[0120] Step 8, anti-rotation component 209 automatically unlocks:

[0121] Step 8.11, switch rod 20906 moves upward: After the welding fixture is placed on the electron beam platform, due to the limit below the switch rod 20906, the welding fixture moves upward as a whole by gravity. The switch rod 20906 moves upward relative to the welding fixture due to the limit below pressing down the spring 20907.

[0122] Step 8.12, Z-shaped frame 20902 moves upward: Z-shaped frame 20902 is fixedly connected to switch rod 20906, and Z-shaped frame 20902 moves upward under the action of switch rod 20906;

[0123] Step 8.13, the first rotating shaft 207 is unlocked; the Z-shaped frame 20902 drives the fixedly connected pressure block 20901 to move upward, the pressure block 20901 no longer contacts the first rotating shaft 207, the friction force of the pressure block 20901 on the first rotating shaft 207 disappears, and the first rotating shaft 207 is unlocked.

[0124] Example 2

[0125] A specific embodiment of the present invention discloses a rotating welding fixture for the automatic unlocking method of Embodiment 1, such as... Figure 1 and Figure 7 As shown, it includes a welding platform module 1, an active lateral clamping module 2, a passive lateral clamping module 3, a support follower module 4, and an anti-rotation component 209; the active lateral clamping module 2 is fixed on one side of the upper end of the welding platform module 1, and a slidable passive lateral clamping module 3 is installed on the other side of the upper end of the welding platform module 1; two slidable support follower modules 4 are installed in the middle of the welding platform module 1.

[0126] This welding fixture has an automatic unlocking function, which can lock the welding workpiece during the installation and transfer process to prevent the workpiece from rotating.

[0127] Welding platform module 1 serves as the basic module of this welding fixture. It is used to control the relative position between passive lateral clamping module 3 and support follow-up module 4 and active lateral clamping module 2. At the same time, welding platform module 1 connects active lateral clamping module 2, passive lateral clamping module 3 and support follow-up module 4 into a whole.

[0128] The active lateral clamping module 2 and the passive lateral clamping module 3 are used to clamp the end of the welded part, and the support follow-up module 4 is used to clamp the welded part near the weld gap. The passive lateral clamping module 3 and the support follow-up module 4 play a follow-up support role, while the active lateral clamping module 2 plays an active rotation and support role.

[0129] Preferred, such as Figure 2 , Figure 3 and Figure 4 As shown, the welding platform module 1 includes a platform frame 101, a platform cover plate 102, a fixed mounting plate 103, a sliding platform 104, linear guide rails 105, sliders 106, and a transmission assembly 107. The platform frame 101 has a platform cover plate 102 on its upper surface, with gaps between the platform cover plate 102 and the front and rear parts of the platform frame 101. A fixed mounting plate 103 is located on one side of the platform frame 101. Linear guide rails 105 are installed at both the front and rear parts of the platform frame 101. Three sets of sliders 106 are installed inside the linear guide rails 105. A sliding platform 104 is installed on the upper end of each set of sliders 106. The sliding platform 104 is hollow. Figure 14 and Figure 15 As shown, the hollow portion of the sliding platform 104 passes through the platform cover plate 102, and three sets of the transmission components 107 are installed inside the platform frame 101.

[0130] The platform frame 101 is a long box-shaped frame. The platform cover plate 102 is used to cover and protect the parts inside the platform frame 101. The fixed mounting plate 103 is used to cooperate with the active lateral clamping module 2 to facilitate the installation of the active lateral clamping module 2. The passive lateral clamping module 3 and the support follow-up module 4 are mounted on the sliding platform 104 and can change their positions on the platform frame 101 as the sliding platform 104 changes. The transmission component 107 is used to control the position of the sliding platform 104. The linear guide rail 105 and the slider 106 are used to provide support for the sliding of the sliding platform 104.

[0131] Preferably, the fixed mounting plate 103 can be used to mount the active lateral clamping module 2.

[0132] Preferably, the sliding platform 104, which is furthest from the fixed mounting plate 103, is connected to the passive lateral clamping module 3.

[0133] Preferably, the welding platform module 1 further includes a lifting ring 108, which is disposed at the front and rear of the platform frame 101.

[0134] Preferred, such as Figure 5 As shown, the welding platform module 1 also includes a girder gripping and positioning hole 109, which is formed at the front and rear of the platform frame 101.

[0135] The gripping and positioning hole 109 is used for the transfer of welding fixtures.

[0136] Preferably, the welding platform module 1 further includes column mounting and positioning holes 110, which are formed at the four lower corners of the platform frame 101.

[0137] When clamping and installing the welding parts, the welding platform is placed on the positioning support frame. The column mounting positioning hole 110 is used to cooperate with the positioning support frame to realize the placement of the welding platform.

[0138] Preferably, the welding platform module 1 further includes an AGV trolley transfer and positioning hole 111, which is located in the lower part of the platform frame 101.

[0139] Preferred, such as Figure 6 , Figure 10 , Figure 11 , Figure 12 and Figure 13As shown, the active lateral clamping module 2 includes a first connecting seat 201, a first rotary support 202, a first support ring cover 203, a first positioning block 204, a first product positioning pin 205, a first clamping mechanism 206, a first rotating shaft 207, and a first rotating positioning pin 211; the first connecting seat 201 is fixed on one side of the first rotary support 202, and the first support ring cover 203 is installed on the other side of the first rotary support 202. The first rotating shaft 207, the first positioning block 204, the first product positioning pin 205, and the first rotating positioning pin 211 are installed on the first support ring cover 203.

[0140] The active lateral clamping module 2 is used to clamp the end of a welded part. The principle is that the robotic arm aligns the welded part and places it on one side of the first support ring cover 203. The first positioning block 204 and the first product positioning pin 205 recognize that the welded part has reached the preset position. The telescopic rod of the first clamping mechanism 206 extends to the rotation center of the first support ring cover 203, and the first conforming part clamps the end of the welded part.

[0141] Preferably, the first clamping mechanism 206 includes a first telescopic rod and a first conformal member.

[0142] Preferred, such as Figure 7 , Figure 8 and Figure 9 As shown, the anti-rotation component 209 is installed inside the first connecting seat 201 via a supporting rib 208. The anti-rotation component 209 includes a pressure block 20901, a Z-shaped frame 20902, a reinforcing rib 20903, a slide 20904, a slide rod 20905, a switch rod 20906, a downward pressure spring 20907, a pressure adjusting bolt 20908, a support plate 20909, and a pressure pad 20910. The slide 20904 is fixed in the middle of the Z-shaped frame 20902, and the slide 20904 is slidably connected to the slide rod 20905. The pressure block 20901 is fixed in the upper part of the Z-shaped frame 20902. 901, the switch rod 20906 is fixed to the lower part of the Z-shaped frame 20902, and a sliding pressure pad 20910 is installed on the upper end of the switch rod 20906. The pressure spring 20907 is sleeved on the outside of the switch rod 20906. The upper and lower ends of the pressure spring 20907 are in contact with the pressure pad 20910 and the Z-shaped frame 20902, respectively. The upper end of the pressure pad 20910 is in contact with the pressure adjusting bolt 20908. The pressure adjusting bolt 20908 is threadedly connected to the support plate 20909. The support plate 20909 is fixedly connected to the active lateral clamping module 2.

[0143] When the welding fixture is installing the workpiece to be welded or during the transfer of the welding fixture to the electron beam platform, the switch rod 20906 is not subjected to an upward supporting force, the downward spring 20907 extends, and the switch rod 20906 tends to move downward. The Z-shaped frame 20902 and the pressure block 20901, which are fixedly connected to the switch rod 20906, also tend to move downward. The pressure block 20901 presses the first rotating shaft 207, and the first rotating shaft 207 is locked and cannot rotate.

[0144] During the transfer of the welding fixture to the electron beam platform, the switch rod 20906 cannot descend when it contacts the electron beam platform. The welding fixture continues to descend, that is, the switch rod 20906 rises relative to the main body of the welding fixture. The pressure spring 20907 is compressed, and the Z-shaped frame 20902 and the pressure block 20901 rise with the rise of the switch rod 20906. The first rotating shaft 207 is unlocked and can rotate freely.

[0145] Preferably, a reinforcing rib 20903 is installed at the corner of the Z-shaped frame 20902.

[0146] The reinforcement rib 20903 can share the stress at the turning joint of the Z-shaped frame 20902, preventing the joint from breaking.

[0147] Preferably, a power plug 210 is installed on one side of the first connector 201.

[0148] The power plug 210 is connected to an external power source to provide power to this welding fixture.

[0149] Preferred, such as Figure 18 As shown, the passive lateral clamping module 3 includes a second connecting seat 301, a second rotary support 302, a second support ring 303, a second positioning block 304, a second product positioning pin 305, a second clamping mechanism 306, and a second rotating shaft 307. The second connecting seat 301 is fixed on one side of the second rotary support 302, and the second support ring 303 is installed on the other side of the second rotary support 302. The second rotating shaft 307 is installed in the middle of the second support ring 303, and the second positioning block 304 and the second product positioning pin 305 are installed inside the second support ring 303.

[0150] Preferably, the second clamping mechanism 306 includes a second telescopic rod and a second conformal member.

[0151] Preferred, such as Figure 16 and Figure 17As shown, the support follow-up module 4 includes a third connecting seat 401, a lower retaining ring assembly 402, an upper retaining ring assembly 403, a power supply component 404, and a first retaining ring pin 405; the lower retaining ring assembly 402 is installed on the third connecting seat 401, and the lower retaining ring assembly 402 is connected to the upper retaining ring assembly 403 through the first retaining ring pin 405; the first retaining ring pin 405 is installed on one side of the third connecting seat 401.

[0152] When installing the welded parts, the first retaining ring pin 405 is unlocked, the robotic arm removes the upper retaining ring assembly 403, and after the welded parts are positioned, the robotic arm reinstalls and resets the upper retaining ring assembly 403, and the first retaining ring pin 405 locks the upper retaining ring assembly 403.

[0153] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention.

Claims

1. An automatic unlocking method for a rotating welding fixture, characterized in that, The specific steps include: Step 1: Adjust the position of the parts inside the welding fixture; Step 2: Clamp the two parts to be welded; Step 3: Connect the two welded parts and press them tightly together; Step 4: Power off the welding fixture; Step 5: Lift and transfer the welding fixture; Step 6, the anti-rotation component (209) locks the rotation function of the active lateral clamping module (2); the anti-rotation component (209) includes a pressure block (20901), a Z-shaped frame (20902), a switch rod (20906), a downward pressure spring (20907), and a pressure pad (20910); the pressure block (20901) is fixed to the upper part of the Z-shaped frame (20902), the switch rod (20906) is fixed to the lower part of the Z-shaped frame (20902), the pressure pad (20910) that can slide up and down is installed on the upper end of the switch rod (20906), the downward pressure spring (20907) is sleeved on the outside of the switch rod (20906), and the upper and lower ends of the downward pressure spring (20907) are in contact with the pressure pad (20910) and the Z-shaped frame (20902) respectively; Specifically, the steps include the following: Step 6.11, switch rod (20906) moves down: when the welding fixture is lifted, the lower limit of switch rod (20906) disappears, and the lower spring (20907) drives switch rod (20906) to move down; Step 6.12, Z-shaped frame (20902) moves down: Z-shaped frame (20902) is fixedly connected to switch rod (20906), and Z-shaped frame (20902) moves down under the action of switch rod (20906); Step 6.13, the pressure block (20901) presses down on the first rotating shaft (207) and locks it; the Z-shaped frame (20902) drives the fixedly connected pressure block (20901) to move down, the pressure block (20901) contacts the first rotating shaft (207) and provides downward pressure, and the first rotating shaft (207) locks; Step 7: Place the welding fixture onto the electron beam welding platform; Step 8: The anti-rotation component (209) is automatically unlocked; specifically, the following steps are included: Step 8.11, the switch rod (20906) moves upward: After the welding fixture is placed on the electron beam platform, due to the limit below the switch rod (20906), the welding fixture moves upward as a whole by gravity, and the switch rod (20906) moves upward relative to the welding fixture due to the limit below squeezing the pressure spring (20907). Step 8.12, Z-shaped frame (20902) moves upward: Z-shaped frame (20902) is fixedly connected to switch rod (20906), and Z-shaped frame (20902) moves upward under the action of switch rod (20906); Step 8.13, the first rotating shaft (207) is unlocked; the Z-shaped frame (20902) drives the fixedly connected pressure block (20901) to move upward, the pressure block (20901) no longer contacts the first rotating shaft (207), the friction force of the pressure block (20901) on the first rotating shaft (207) disappears, and the first rotating shaft (207) is unlocked.

2. The automatic unlocking method for a rotating welding fixture according to claim 1, characterized in that, Step 1 includes energizing the welding fixture, calculating the position of the passive lateral clamping module (3) and the support follow-up module (4) based on the position of the welded part, and adjusting the position of the passive lateral clamping module (3) and the support follow-up module (4) through the welding platform module (1) based on the calculated position.

3. The automatic unlocking method for a rotating welding fixture according to claim 1, characterized in that, Step 2 includes the following steps: Step 2.11, the upper retaining ring assembly (403) close to the active lateral gripping module (2) is held by the robotic arm; Step 2.12, the first retaining ring pin (405) releases the restriction on the upper retaining ring assembly (403) near the active lateral clamping module (2); Step 2.13, remove the upper retaining ring assembly (403) near the active lateral clamping module (2); Step 2.14: The first welded part is picked up by the robotic arm and transferred between the active lateral clamping module (2) and the support follow-up module (4); Step 2.15, the positioning element inside the first welded part docks with the first positioning block (204) and the first product positioning pin (205); Step 2.16, the first clamping mechanism (206) clamps the welded part, and the lower retaining ring assembly (402) close to the active lateral clamping module (2) is pressed against the lower part of the first welded part; Step 2.17: The robotic arm releases the first welded part and resets the upper retaining ring assembly (403) that is close to the active lateral gripping module (2).

4. The automatic unlocking method for a rotating welding fixture according to claim 3, characterized in that, Step 2 further includes: Step 2.21, the upper retaining ring assembly (403) close to the passive lateral gripping module (3) is gripped by the robotic arm; Step 2.22, the first retaining ring pin (405) releases the restriction on the upper retaining ring assembly (403) near the passive lateral clamping module (3); Step 2.23, remove the upper retaining ring assembly (403) near the passive lateral clamping module (3); Step 2.24: The second welded part is picked up by the robotic arm and transferred between the passive lateral clamping module (3) and the support follow-up module (4); Step 2.25: The positioning element inside the second welded component docks with the second positioning block (304) and the second product positioning pin (305); Step 2.26, the second clamping mechanism (306) clamps the welded part, and the lower retaining ring assembly (402) close to the passive lateral clamping module (3) is pressed against the lower part of the second welded part; Step 2.27: The robotic arm releases the second welded part and resets the upper retaining ring assembly (403) that is close to the passive lateral clamping module (3).

5. The automatic unlocking method for a rotating welding fixture according to claim 1, characterized in that, Step 3 includes adjusting the position of the second welded part, moving the passive lateral clamping module (3) and the support follower module (4) that are in contact with the second welded part, so that the first welded part and the second welded part are pressed together.

6. The automatic unlocking method for a rotating welding fixture according to claim 1, characterized in that, Step 4 includes removing the power supply head that mates with the power connector (210) from the power connector (210).

7. The automatic unlocking method for a rotating welding fixture according to claim 1, characterized in that, Step 5 includes lifting and transferring the welding fixture using an AGV (Automated Guided Vehicle).

8. The automatic unlocking method for a rotating welding fixture according to claim 1, characterized in that, Step 7 includes the AGV trolley lifting and transferring the welding fixture to the electron beam welding platform.

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