Assembly equipment for dust collector pipeline

Abstract

The invention relates to assembly equipment for a dust collector pipeline, and the assembly equipment comprises a screw locking structure which comprises a feeding assembly for bearing the pipeline, a screw locking assembly arranged above the feeding assembly and used for locking screws for the pipeline, and a transfer assembly arranged on one side of the screw locking assembly; the screwing structure is used for transferring the screws to the screw locking assembly; and the detection structure comprises a bearing assembly for bearing the pipeline after screw locking, a bending assembly which is arranged on one side of the bearing assembly and drives the pipeline to rotate, and a detection assembly for carrying out air tightness detection on the pipeline. According to the assembly equipment for the dust collector pipeline, screws are fed into the screw locking structure through the screw feeding structure, the screws are screwed into the two sides of the pipeline through the screw locking structure, the pipeline is driven to rotate through the detection structure, air tightness detection is conducted, it is guaranteed that the bending angle of the pipeline is kept consistent every time, and the assembly efficiency is improved. And the production quality and efficiency of the dust collector pipeline are improved.

Description

Technical Field

[0001] This invention belongs to the field of pipe assembly technology, specifically relating to an assembly device for vacuum cleaner pipes. Background Technology

[0002] Existing vacuum cleaners typically consist of a main unit and a vacuum head connected by a pipe. The main unit contains a motor and a dust collection bin, and has a handle on the outside. When in operation, the user holds the handle and turns on the switch. The motor rotates at high speed, creating negative pressure within the sealed housing, which draws dust and debris into the dust collection bin through the pipe, completing the cleaning process.

[0003] On the vacuum cleaner assembly line, the assembly and testing of the pipes are crucial steps. Currently, this process mainly relies on manual operation: first, operators need to use a screwdriver to tighten the screws on the pipes; then, in the airtightness testing stage, the pipes still need to be manually bent and inserted into the testing equipment.

[0004] However, this method, which relies mainly on manual labor, has obvious drawbacks: First, manual screw fastening is inefficient and labor-intensive, making it difficult to adapt to the pace of modern large-scale production; second, the angle, force, and speed of manually bending pipes cannot be precisely controlled, resulting in random differences in the bending shape each time. This inconsistency directly interferes with the accuracy and reliability of the airtightness test results, which may lead to misjudgment or missed detection, affecting the quality of the products leaving the factory. Summary of the Invention

[0005] This invention overcomes the dual shortcomings of existing technologies, such as low assembly efficiency of vacuum cleaner pipes due to reliance on manual operation on vacuum cleaner assembly lines and inaccurate results of subsequent airtightness testing due to inconsistent bending angles. It provides an assembly device for vacuum cleaner pipes that integrates high-precision assembly and reliable testing of pipes.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is: an assembly device for vacuum cleaner tubing, comprising: A screw-locking structure, comprising a feeding assembly for supporting a pipe, a screw-locking assembly disposed above the feeding assembly for locking screws on both sides of the pipe, and a transfer assembly disposed on one side of the screw-locking assembly for transferring the pipe after the screws are fastened. An upper screw structure is provided for transferring a screw to the screw-locking assembly; The detection structure includes a support component for supporting the pipe after screw fastening, a bending component disposed on one side of the support component and driving the pipe to rotate between two extreme positions of 0° and 90°, and a detection component for performing airtightness detection on the pipe at the two extreme positions of 0° and 90°.

[0007] Optimally, the feeding assembly includes a frame, a carrier that is movable along the Y-axis and disposed on the top of the frame, and a clamping unit that is rotatably mounted on the top of the carrier. The clamping unit is used to clamp the pipe and drive it to rotate in both directions, and the screw fastening assembly fastens screws to the two side walls of the pipe.

[0008] Optimally, the screw fastening assembly includes a gantry frame mounted above the machine frame, a movable frame movably disposed on one side of the gantry frame along the X-axis, a lifting plate mounted on one side of the movable frame, a screwdriver sleeve fixed to the bottom of the lifting plate, and an electric screwdriver bit height-adjustable disposed on one side of the lifting plate and cooperating with the screwdriver sleeve.

[0009] Optimally, the transfer assembly includes a transfer plate movable along the Y-axis on one side of the gantry, a mounting bracket vertically mounted on one side of the transfer plate, and clamping units adjustablely mounted on both sides of the mounting bracket, the clamping units being used to clamp the pipe after screw fastening.

[0010] Optimally, the screw-on structure includes a feeding rack for conveying screws, a support frame fixed to the outlet side of the feeding rack, a receiving block slidably installed in the support frame, an air pipe installed at the bottom of the support frame, and a picking mechanism disposed in the receiving block. The picking mechanism alternately receives screws from the outlet side of the feeding rack and transfers them into the air pipe, which is connected to the screwdriver sleeve.

[0011] Optimally, the material receiving mechanism includes a first clearance groove opened on the side of the receiving block near the feeding frame, a drop groove that passes through the receiving block in a vertical direction and connects the first clearance groove and the air pipe, a through groove that passes through the receiving block and connects to the first clearance groove, a receiving plate that is slidably inserted into the through groove, and a second clearance groove opened on the side of the receiving plate near the feeding frame. When the receiving plate is in the receiving position, the receiving plate extends to receive the screws on the feeding rack; When the receiving plate is in the dropping position, the receiving plate retracts to release the support of the screw.

[0012] Optimally, the material handling mechanism further includes a top plate fixed to the side of the support frame away from the feeding frame, a front top plate disposed on the inner side of the top plate, a rear section disposed on both sides of the front top plate, a connecting section connecting the front top plate and the rear section and disposed at an incline, a drive block integrally connected to one side of the receiving plate and elastically connected to the receiving block, and a stop wheel rotatably installed in the drive block. When the receiving plate is in the receiving position, the abutment wheel contacts the front top and pushes the receiving plate out; When the receiving plate is in the dropping position, the abutment wheel contacts the retracted portion to retract the receiving plate.

[0013] Ideally, the support assembly includes a testing platform, clamps fixed to the top of the testing platform and spaced apart, a clamping groove formed on the top of the clamps, and a pressure block pressed onto the pipe.

[0014] Optimally, the bending assembly includes a rotating plate rotatably mounted on the top of the testing platform, two connecting plates integrally connected to one side of the rotating plate, a contact wheel mounted on the side of the connecting plate away from the rotating plate, a receiving groove formed on the outside of the contact wheel, a limiting frame fixed to the top of the testing platform, a clamping plate fixed to one side of the limiting frame and spaced apart, and a clamping groove formed between the clamping plates. When the pipe is bent to 90°, the pipe is inserted into the clamping groove.

[0015] Optimally, the detection assembly includes a tube and a first sensor movably disposed on the top of the detection table and located on both sides of the pipe, and a second sensor movably disposed above the limiting frame, wherein the tube is inserted into one end of the pipe; When the pipe is in a horizontal position, the first sensor is plugged into the other end of the pipe; When the pipe is bent to 90°, the second sensor is inserted into the other end of the pipe.

[0016] Due to the application of the above technical solution, the present invention has the following advantages compared with the prior art: This invention relates to an assembly device for vacuum cleaner pipes. A screw-on structure feeds screws into a screw-locking structure, which then screws the screws into both sides of the pipe. Finally, a detection structure rotates the pipe between two extreme positions, 0° and 90°, and performs airtightness tests at these two extreme positions. This ensures that the pipe bends at a consistent angle each time, eliminates human intervention during the testing process, improves assembly efficiency and subsequent testing efficiency, saves costs, and enhances the production quality and efficiency of vacuum cleaner pipes. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the vacuum cleaner's piping structure. Figure 2 A schematic diagram of the vacuum cleaner pipe from another angle; Figure 3 This is a schematic diagram of the screw-locking structure of the present invention; Figure 4 This is a schematic diagram of the feeding assembly in the screw-locking structure of the present invention; Figure 5 For the present invention Figure 4A partial structural diagram; Figure 6 This is a schematic diagram of the screw-locking assembly in the screw-locking structure of the present invention; Figure 7 For the present invention Figure 6 The main view; Figure 8 This is a schematic diagram of the transfer component in the screw-locking structure of the present invention; Figure 9 For the present invention Figure 8 A partial structural diagram; Figure 10 This is a schematic diagram of the screw structure of the present invention; Figure 11 This is a schematic diagram of the screw structure from another angle of the present invention; Figure 12 This is a schematic diagram of the screw structure from another angle of the present invention; Figure 13 This is a partial top view of the screw structure of the present invention; Figure 14 This is a partial structural diagram of the screw structure of the present invention; Figure 15 This is a partial structural diagram of the screw structure of the present invention; Figure 16 This is a schematic diagram of the detection structure of the present invention; Figure 17 This is a partial structural diagram of the detection structure of the present invention; Figure 18 This is a partial structural diagram of the detection structure of the present invention; Figure 19 This is a partial structural diagram of the detection structure of the present invention; Explanation of reference numerals in the attached figures: 100. Frame; 101. Workbench; 102. Sliding plate; 103. Mounting plate; 104. Side plate; 105. Servo motor; 106. Tilting plate; 107. Tilting slot; 108. Tilting plate; 109. First pressing cylinder; 110. Main carrier plate; 111. Main carrier slot; 112. Secondary carrier plate; 113. Secondary carrier slot; 114. Main reinforcing plate; 115. Secondary reinforcing plate; 116. Reinforcing slot; 117. Gantry frame; 118. Moving frame; 119. Lifting plate; 120. Slide rail; 121. Slider; 122. Bit mounting plate; 123. Electric bit; 124. First cylinder mounting plate; 125. Connecting plate; 126. Push cylinder; 127. Support plate; 128. Connecting rod; 129. Anti-detachment block; 130. Through hole; 131. First spring; 132. Screwdriver sleeve fixing plate; 133. Screwdriver sleeve; 134. Y-axis linear module; 135. Transfer plate; 136. Z-axis linear module; 137. Mounting bracket; 138. Adjustment slot; 139. Finger cylinder; 140. Clamping plate; 141. Clamping slot; 200. Feeding rack; 201. Feeding trough; 202. Angle plate; 203. First side plate; 204. Bottom plate; 205. Second side plate; 206. Second cylinder mounting plate; 207. Pushing cylinder; 208. Mounting groove; 209. Top plate; 210. Front top; 211. Retractable part; 212. Connecting part; 213. Receiving block; 214. Limiting plate; 215. Through groove; 216. Receiving plate; 217. Drive block; 218. Spring groove; 219. Second spring; 220. Abutment wheel; 221. First clearance groove; 222. Drop trough; 223. Air pipe; 224. Second clearance groove; 225. First guide part; 300. Testing table; 301. Support plate; 302. Clamping plate; 303. Clamping groove; 304. First slide cylinder; 305. First slide plate; 306. Fixing plate; 307. Insertion tube; 308. Second slide cylinder; 309. Second slide plate; 310. First sensor; 311. Second pressing cylinder; 312. Third cylinder mounting plate; 313. Third pressing cylinder; 314. Pressing block; 315. Rotary cylinder; 31 6. Rotating plate; 317. Extension plate; 318. Fixing rod; 319. Contact wheel; 320. Receiving groove; 321. Limiting nut; 322. Limiting frame; 323. Clamping plate; 324. Clamping groove; 325. Second guide part; 326. Arc-shaped part; 327. Support frame; 328. Vertical plate; 329. Third linear slide; 330. Third sliding plate; 331. Second sensor; 332. Clearance hole; 333. Contact head. Detailed Implementation

[0018] The present invention will be further described below with reference to the embodiments shown in the accompanying drawings.

[0019] The present invention relates to an assembly device for vacuum cleaner tubing, comprising a screw-locking structure, a screw-on structure, and a detection structure. The screw-locking structure is used for... Figure 1 , Figure 2 The pipe shown has screws on both sides. The screw-on structure is used to deliver the screws to the screw-on structure. The detection structure is used to bend the pipe and test its airtightness after the screws are tightened.

[0020] like Figure 3 The diagram shows a screw-locking structure, which includes a feeding assembly, a screw-locking assembly, and a transfer assembly. The operator places the pipe on the feeding assembly, and the screw-locking assembly screws onto both sides of the pipe. Then, the transfer assembly transfers the screw-locked pipe to the conveyor belt below, transporting the pipe to the next work station.

[0021] like Figure 4 , 5 As shown, the feeding assembly includes a frame 100, a worktable 101, a sliding plate 102, a mounting plate 103, a side plate 104, a servo motor 105, a tilting plate 106, a tilting groove 107, a tilting plate 108, a first pressing cylinder 109, a main carrier plate 110, a main carrier groove 111, a secondary carrier plate 112, a secondary carrier groove 113, a main reinforcing plate 114, a secondary reinforcing plate 115, and a reinforcing groove 116. The frame 100 is welded from aluminum profiles. The bottom of the frame 100 is equipped with foot pads to support the aluminum profile frame off the ground and prevent water accumulation on the ground from causing the frame 100 to rust. (The frame 100 is straddled on the conveyor belt, that is, the conveyor belt used for conveying pipes is located at the bottom of the frame 100 and avoids the vertical profile of the frame 100. The conveying direction of the conveyor belt is the same as the conveying direction of the sliding plate 102. The operator is located on one side of the conveyor belt and places the pipes on the conveyor belt onto the feeding assembly. The conveyor belt is not shown in the figure. The conveyor belt is a conventional conveying structure in the prior art.)

[0022] The workbench 101 is fixed to the top of the frame 100 by screws. Two sets of linear modules are fixedly installed on the top of the workbench 101. The sliding plate 102 is fixed to the slider of the linear module by screws. The linear module drives the sliding plate 102 to move back and forth. (The linear module is a conventional driving component in the prior art. In this embodiment, a cylinder, ball screw, or other driving component can also be used to replace the linear module.) Figure 3 As shown, the sliding plate 102 moves in the Y direction, and the conveyor belt located at the bottom inner side of the frame 100 moves in the same Y direction as the sliding plate 102.

[0023] like Figure 4 , 5As shown, the mounting plate 103 is fixed to the top of the sliding plate 102 by screws. When the linear module on the worktable 101 moves the sliding plate 102, it will move the mounting plate 103 above it synchronously. There are two side plates 104, which are vertically fixed to the top of the mounting plate 103 by welding and located on the two short sides of the mounting plate 103.

[0024] The main reinforcing plate 114 is fixed to one long side of the mounting plate 103 by welding. Two secondary reinforcing plates 115 are integrally connected to both sides of the main reinforcing plate 114. The main reinforcing plate 114 and the secondary reinforcing plate 115 have a reinforcing groove 116 on the side closest to the side plate 104. The reinforcing groove 116 is U-shaped to match the side plate 104 and the mounting plate 103. During actual installation, the reinforcing grooves 116 on the inner sides of the main reinforcing plate 114 and the secondary reinforcing plate 115 are inserted into the side plate 104, and then the main reinforcing plate 114 and the secondary reinforcing plate 115 are fixed to one side of the mounting plate 103 by welding. By setting the main reinforcing plate 114 and the secondary reinforcing plate 115, the structural strength of the two sets of side plates 104 is improved, and the side plates 104 on both sides are prevented from deforming during rotation, which would affect the effect of locking the screws; by setting the reinforcing groove 116, the inserted main reinforcing plate 114 and secondary reinforcing plate 115 are positioned.

[0025] Two flip plates 106 are rotatably mounted on the inner sides of two side plates 104. Specifically, a through hole is formed horizontally on the side plate 104, and a bearing is installed in the through hole of the side plate 104. A rotating shaft passing through the bearing is fixed to the back side of the flip plate 106. A servo motor 105 is fixed to the outer side of the side plate 104 by screws and is connected to one of the rotating shafts. The servo motor 105 drives the flip plate 106 to rotate.

[0026] like Figure 4 As shown, the flip plate 106 is L-shaped, and a flip groove 107 is provided on the inner side of the flip plate 106. The flip plate 108 abuts against the flip groove 107 of the two flip plates 106, and then the flip plate 108 is fixed to the inner side of the flip plate 106 by screws. When the servo motor 105 drives the flip plate 106 to rotate, it in turn drives the flip plate 108 to rotate synchronously. By providing the flip groove 107 on the inner side of the flip plate 106, the flip plate 108 is supported, improving the structural strength after fixed installation.

[0027] The main carrier plate 110 is fixed to the top of the flip plate 108 by screws. The main carrier groove 111 is formed on the top of the main carrier plate 110. The main carrier groove 111 matches the structure of the pipe connection and is used to support the pipe to be screwed. The auxiliary carrier plate 112 is fixed to the top of the flip plate 108 by screws. The auxiliary carrier groove 113 is formed on the top of the auxiliary carrier plate 112. Since the pipe is long, the main structure of the pipe is placed in the main carrier groove 111, and the remaining part of the pipe is placed in the auxiliary carrier groove 113.

[0028] The first pressing cylinder 109 is fixed on the top of the flap 108 and presses against the pipe. When the flap 108 rotates and drives the pipe to rotate, the pressing action of the first pressing cylinder 109 prevents the pipe from falling or shifting, thus affecting the accuracy of the screw fastening position (the first pressing cylinder 109 can be a commercially available ACK series corner cylinder).

[0029] In the Figure 1 , 2 When the pipe shown is screwed, the servo motor 105 drives the flip plate 108 to rotate 90° clockwise, turning the side of the pipe to face upwards, and then the screw-locking assembly above completes the screw-locking of one side of the pipe; then the servo motor 105 drives the flip plate 108 to rotate 180° counterclockwise, turning the other side of the pipe to face upwards, and then the screw-locking assembly above completes the screw-locking of the other side of the pipe.

[0030] like Figure 6 , 7 The diagram shows a screw-locking assembly used to attach screws to both sides of a pipe. The screw-locking assembly includes a gantry frame 117, a moving frame 118, a lifting plate 119, a slide rail 120, a slider 121, a bit mounting plate 122, an electric bit 123, a first cylinder mounting plate 124, a connecting plate 125, a pushing cylinder 126, a stop plate 127, a connecting rod 128, an anti-detachment block 129, a through hole 130, a first spring 131, a screwdriver sleeve fixing plate 132, and a screwdriver sleeve 133. The gantry frame 117 is fixed to the top of the frame 100 by screws and spans above the worktable 101. The movable frame 118 is slidably installed on one side of the gantry frame 117 along the X-axis (specifically, a linear module is fixed to one side of the top of the gantry frame 117 along the X-axis, and the movable frame 118 is fixed to the slider of the linear module by screws. The linear module drives the movable frame 118 to move along the X-axis, which in turn drives the electric screwdriver bit 123 below to move along the X-axis, securing the screws to both sides of the pipe).

[0031] The lifting plate 119 is movably mounted on the side of the movable frame 118 away from the gantry frame 117 (specifically, a vertically mounted linear module is fixed to the side of the movable frame 118 away from the gantry frame 117 by screws, and the lifting plate 119 is fixed to the slider of this linear module by screws). By setting linear modules distributed along the X-axis and Z-axis on one side of the gantry frame 117, the lifting plate 119 is moved closer to the screw holes of the pipe, facilitating subsequent screw fastening.

[0032] The slide rail 120 is vertically fixed to one side of the lifting plate 119 by screws. The slider 121 is slidably mounted on the slide rail 120. The bit mounting plate 122 is fixed to the side of the slider 121 away from the slide rail 120 by screws. The electric bit 123 is fixed on the bit mounting plate 122 (the electric bit 123 is a conventional structure in the prior art, which includes a screwdriver and a motor connected to the screwdriver and used to drive the screwdriver to rotate; specifically, the motor of the electric bit 123 is fixed on the bit mounting plate 122, and the screwdriver of the electric bit 123 passes through the bit mounting plate 122).

[0033] The screwdriver sleeve fixing plate 132 is fixed to one side of the bottom of the lifting plate 119 by screw fastening. The screwdriver sleeve 133 is fixed on the screwdriver sleeve fixing plate 132. The screwdriver sleeve 133 is a conventional structure in the prior art. It has two connected inlets, one of which is through which the screwdriver of the electric screwdriver bit 123 passes, and the other is for the screw to enter (in actual use, the air pipe 223 of the upper screw structure is connected to the screw inlet of the screwdriver sleeve 133, blowing the screw into the screwdriver sleeve 133, and the electric screwdriver bit 123 descends and the screwdriver screws the screws on both sides of the pipe).

[0034] The first cylinder mounting plate 124 is fixed to one side of the lifting plate 119 by screws. The cylinder body of the pushing cylinder 126 is fixed to the first cylinder mounting plate 124. The piston rod of the pushing cylinder 126 passes through the first cylinder mounting plate 124 and is welded to the abutment 127. The connecting rod 128 is fixed to the bottom of the abutment 127, i.e., the side of the abutment 127 away from the pushing cylinder 126, by welding.

[0035] A connecting plate 125 is fixed to one side of a bit mounting plate 122, and a through hole 130 is provided on the connecting plate 125 for the connecting rod 128 to pass through. An anti-detachment block 129 is fixed to the bottom of the connecting rod 128 and abuts against the bottom of the connecting plate 125. The diameter of the anti-detachment block 129 is larger than the diameter of the through hole 130 on the connecting plate 125. Under the support of the anti-detachment block 129, the bit mounting plate 122 and the electric bit 123 are prevented from sliding down under the action of gravity. A first spring 131 is sleeved on the connecting rod 128, and the two ends of the first spring 131 abut against the abutment plate 127 and the connecting plate 125 respectively.

[0036] The screw-locking mechanism works as follows: After the feeding assembly carries the pipe, it moves to the area below the screw-locking mechanism. The lifting plate 119 moves to the position of the pipe screw hole, and the screw-loading structure blows the screw into the screwdriver sleeve 133. The pushing cylinder 126 drives the abutment 127, connecting rod 128, and anti-detachment block 129 to descend synchronously. At this time, the connecting plate 125, bit mounting plate 122, and electric bit 123 move downwards under their own weight until the screwdriver of the electric bit 123 is inserted into the screwdriver sleeve 133. The pushing cylinder 126 continues to descend, compressing the first spring 131. Under the counterforce of the first spring 131, downward pressure is applied to the connecting plate 125, causing the bit mounting plate 122 and electric bit 123 to continue descending and press against the screw. The electric bit 123 then screws the screw downwards into the screw holes on both sides of the pipe. When the pushing cylinder 126 resets, the anti-detachment block 129 pulls the connecting plate 125 and bit mounting plate 122 up together.

[0037] By incorporating a first spring 131, the reverse force of the spring's deformation under compression applies downward pressure to the electric screwdriver bit 123, causing it to rotate and descend simultaneously, thus screwing the screw into the pipe's screw hole. The first spring 131 serves to dampen vibrations and extend the equipment's lifespan; simultaneously, its elastic deformation provides continuous radial pressure, ensuring a tight fit between the electric screwdriver bit 123 and the screw, preventing slippage or stripping.

[0038] like Figure 8 , 9 The diagram shows the structure of the transfer assembly. The transfer assembly is used to clamp the screw-attached pipe and transfer it to the conveyor belt below the frame 100. The transfer assembly includes a Y-axis linear module 134, a transfer plate 135, a Z-axis linear module 136, a mounting bracket 137, an adjustment groove 138, a finger cylinder 139, a clamping plate 140, and a clamping groove 141. The Y-axis linear module 134 is fixed along the Y-direction to the other side of the top of the gantry 117. The transfer plate 135 is fixed to the slider of the Y-axis linear module 134 by screws. The Y-axis linear module 134 drives the transfer plate 135 to move along the Y-axis, thereby transferring the pipe.

[0039] The Z-axis linear module 136 is fixed on one side of the transfer plate 135 and is arranged along the Z-axis direction. The mounting bracket 137 is connected to the Z-axis linear module 136. The mounting bracket 137 is driven to descend by the Z-axis linear module 136 to clamp the pipe after the screws on the feeding assembly are fastened.

[0040] like Figure 9As shown, adjustment grooves 138 are provided on both sides of mounting bracket 137, and adjustment grooves 138 are waist-shaped grooves. Finger cylinders 139 are fixed to both sides of mounting bracket 137 by bolt fastening (specifically, the fastening bolts are passed through adjustment grooves 138 and fixed in the threaded holes on the side of finger cylinders 139 to complete the installation of finger cylinders 139. By setting adjustment grooves 138, the positions of two sets of finger cylinders 139 can be adjusted, thereby adjusting the position of pipe clamping).

[0041] The clamping plate 140 is fixed to the gripper of the finger cylinder 139 by screws. The finger cylinder 139 drives the two sets of clamping plates 140 inside to move inward synchronously, thereby completing the clamping of the pipe. The clamping groove 141 is formed on the inner side of the clamping plate 140. The clamping groove 141 is "V" shaped. When clamping the pipe, the side wall of the pipe is tangent to the "V" shaped clamping groove 303, which improves the stability of the clamping and prevents the pipe from falling when transferring the pipe.

[0042] like Figure 10-13 The diagram shows the structure of the screw-on mechanism, which is located on one side of the frame 100 and is used to blow screws into the screwdriver sleeve 133. The feeding rack 200 is connected to the vibratory feeder, and a vertical vibrator is installed at the bottom of the feeding rack 200. The vibratory feeder feeds the screws into the feeding trough 201 of the feeding rack 200 (e.g., ...). Figure 10 As shown, the feeding trough 201 is located on the top of the feeding rack 200, and the screws are arranged in the feeding trough 201 of the feeding rack 200. Each screw consists of a nut and a screw rod, with the nut resting against the top of the feeding trough 201 and the screw rod located inside the feeding trough 201.

[0043] Angle plate 202 is L-shaped and is fixed to both sides of the end of the conveying direction of the feeding rack 200 by screws. First side plate 203 is fixed to one side of angle plate 202 by screws. Base plate 204 is fixed to the side of first side plate 203 away from angle plate 202 by screws. Second side plate 205 is fixed to the side of base plate 204 away from first side plate 203 by screws. Second cylinder mounting plate 206 is fixed to one side of second side plate 205 by screws. Push cylinder 207 is fixed to the outside of second cylinder mounting plate 206 by screws and is connected to receiving block 213. Push cylinder 207 drives receiving block 213 to move back and forth, thereby picking up screws in feeding groove 201 and transferring them into air pipe 223.

[0044] like Figure 12As shown, the receiving block 213 cooperates with the first side plate 203 and the bottom plate 204 through a slot structure, which improves the stability of the reciprocating movement of the receiving block 213. The limiting plate 214 is fixed to the top of the first side plate 203 by screws and abuts against the upper surface of the receiving block 213, ensuring the stability of the movement of the receiving block 213 under the action of the limiting plate 214.

[0045] like Figure 13 As shown, the mounting groove 208 is formed on the top of the second side plate 205, and the top plate 209 is fixed to the top of the second side plate 205 by screws and is located in the mounting groove 208. The top plate 209 has a front top 210, a rear recess 211 and a connecting part 212 connected to each other on the side near the receiving block 213. Figure 13 This is a top-down view. The front top 210 is located in the middle of the top plate 209 and corresponds to the feeding trough 201 of the feeding frame 200. The rear retractable portion 211 is located on both sides of the front top 210. The connecting portion 212 is used to connect the front top 210 and the rear retractable portion 211, and the connecting portion 212 is inclined. To facilitate the rolling of the abutment wheel 220, the connection between the connecting portion 212 and the front top 210, as well as the connection between the connecting portion 212 and the rear retractable portion 211, are all arc-shaped transition connections.

[0046] like Figure 13 As shown, the distance between the front top 210 and the receiving block 213 is less than the distance between the rear retracted part 211 and the receiving block 213. When the receiving block 213 moves, it changes the contact position between the abutment wheel 220 and the top plate 209, thereby pushing the receiving plate 216 to extend to receive material or to retract to release material.

[0047] like Figure 14 The diagram shows a partial structural schematic of the receiving block 213 near the top plate 209. Two sets of through slots 215 extend through the receiving block 213. The opening direction of the through slots 215 is perpendicular to the moving direction of the receiving block 213. The receiving plate 216 is inserted into the through slots 215 of the receiving block 213. A drive block 217 is integrally connected to the side of the receiving plate 216 near the top plate 209. A stop wheel 220 is rotatably mounted on the side of the drive block 217 near the top plate 209 via a rotating shaft. Figure 13 As shown, the abutment wheel 220 abuts against the inner side of the top plate 209. The spring groove 218 is formed on the opposite side of the receiving block 213 and the driving block 217. The second spring 219 is set in the spring groove 218. By setting the second spring 219, the receiving plate 216 is assisted to retract, thereby completing the feeding.

[0048] like Figure 13As shown, since the front top 210 is closer to the receiving block 213 than the rear retracted portion 211, when the abutment wheel 220 rolls to contact the front top 210, it will push the drive block 217 together with the receiving plate 216 toward the side closer to the feeder 200. At this time, the second spring 219 is compressed. When the abutment wheel 220 rolls along the connecting portion 212 to contact the rear retracted portion 211, since the rear retracted portion 211 is away from the receiving block 213, under the action of the second spring 219 resetting, it will push the receiving plate 216 and the drive block 217 toward the side away from the feeder 200, thereby driving the receiving plate 216 to retract and thus completing the feeding.

[0049] like Figure 15 The diagram shows the structure of the receiving block 213 near the feeding rack 200. Two sets of first clearance grooves 221 are spaced apart on the receiving block 213 near the feeding rack 200. The first clearance grooves 221 are arc-shaped to avoid screws on the feeding rack 200. A discharge groove 222 is located at the bottom of the first clearance groove 221 and passes through the receiving block 213. Two sets of transition grooves are vertically formed on the base plate 204, located on both sides of the feeding rack 200. An air pipe 223 is installed at the bottom of the base plate 204 and connected to the transition grooves. The first clearance groove 221 and the dropping groove 222 on the receiving block 213 cooperate with the transition groove of the base plate 204. When one set of the first clearance grooves 221 on the receiving block 213 receives the screw, the other set of the first clearance grooves 221 matches the position of the transition groove, thereby realizing staggered feeding and improving the feeding efficiency of the screw (one side of the air pipe 223 is connected to an air pump through a pipe, which is used to circulate air into the air pipe 223, thereby blowing the screw that falls into the air pipe 223 into the screwdriver sleeve 133).

[0050] The second clearance groove 224 is located on the side of the receiving plate 216 away from the abutment wheel 220, and the second clearance groove 224 is arc-shaped, with its diameter between the diameters of the screw and the nut. The first guide portion 225 is inclinedly disposed on both sides of the second clearance groove 224, ensuring that the screw smoothly enters the second clearance groove 224 through the guidance of the first guide portion 225.

[0051] like Figure 13 As shown, the screw-on principle of the screw-on structure is as follows: Since the front top 210 is closer to the receiving block 213 than the rear retracted portion 211, when the pushing cylinder 207 moves the receiving block 213 to the receiving position ( Figure 13The receiving structure on the left is A, and the receiving structure on the right is B. The receiving structure consists of a receiving plate 216, a driving block 217, a stop wheel 220, a second spring 219, and a second clearance groove 224. At this time, the stop wheel A rolls to contact the front top 210 (for the convenience of explaining the screw feeding principle, the stop wheel of the receiving structure A is defined as stop wheel A, and the following is similar). It will push the driving block A together with the receiving plate A towards the side closer to the feeding frame 200. At this time, the second spring A is compressed. Because the receiving plate A is pushed out towards the side closer to the feeder 200, as Figure 15 As shown, when the screw in the feeding groove 201 moves forward, the screw shaft enters the second clearance groove A, and the screw nut abuts against the upper surface of the receiving plate A (that is, the screw nut abuts above the second clearance groove A). Under the support of the receiving plate A, the screw will not fall down. At this time, the receiving structure A completes the receiving action. The pusher cylinder 207 drives the receiving block 213 to continue moving forward to the discharge position. At this time, the receiving structure B repeats the action of the receiving structure A to receive the material. During the forward movement of the receiving structure A, the abutment wheel A gradually contacts the retracted part 211 from the front top 210 along the connecting part 212. Since the retracted part 211 is away from the receiving block 213, under the action of the second spring A, the receiving plate A and the drive block A will be pushed away from the feeding frame 200. When the abutment wheel A is in complete contact with the retracted part 211, the receiving plate A retracts completely. Upon reaching the receiving block 213, the screw, lacking support, falls downwards along the drop groove 222 of the receiving block 213 and the transition groove of the base plate 204 into the air pipe 223 below. An air pump is connected to one side of the air pipe 223 via a pipe, supplying air to the pipe and blowing the screw into the screwdriver sleeve 133. When the pushing cylinder 207 retracts the receiving block 213, receiving structure B repeats the action of receiving structure A, feeding the screw into another air pipe 223, while receiving structure A repeats the receiving action. By setting two sets of receiving structures in conjunction with the inner surface trajectory of the top plate 209, alternating screw receiving and dropping are achieved, thereby improving the efficiency of screw installation.

[0052] like Figure 16 , 17 The diagram shows a schematic of the detection structure, which is located near the conveyor belt. The detection structure includes a load-bearing component, a bending component, and a detection component. The operator picks up the pipe that has been screwed onto the conveyor belt and places it on the load-bearing component. The bending component is used to rotate the pipe between two extreme positions, 0° and 90°. The detection component is used to perform airtightness testing on the pipe at the two extreme positions, 0° and 90°.

[0053] The supporting components include a testing platform 300, a support plate 301, clamping plates 302, clamping grooves 303, a second pressing cylinder 311, a third cylinder mounting plate 312, a third pressing cylinder 313, a pressure block 314, a support frame 327, clearance holes 332, and a contact head 333. The bottom of the testing platform 300 is equipped with swivel casters, which lift the testing platform 300 off the ground to prevent water accumulation and corrosion of the bottom surface. The support plate 301 is fixed to the top of the testing platform 300 with screws. Multiple clamping plates 302 are welded to the top of the support plate 301 and spaced apart. Clamping grooves 303 are formed on the top of the clamping plates 302, and their shape matches the bottom surface of the pipe. The operator places the pipe, secured with screws on the conveyor belt, into the clamping grooves 303 of the clamping plates 302. The use of multiple clamping plates 302 improves the stability of the pipe support.

[0054] The support frame 327 is welded from aluminum profiles and fixed to the top of the testing table 300. The third cylinder mounting plate 312 is fixed to one side of the support frame 327. To improve the structural strength of the third cylinder mounting plate 312, a reinforcing rib is fixed between the third cylinder mounting plate 312 and the support frame 327. The two right-angled sides of the reinforcing rib abut against the support frame 327 and the third cylinder mounting plate 312 respectively. The cylinder body of the third pressing cylinder 313 is fixed to the third cylinder mounting plate 312 by screws. The piston rod of the third pressing cylinder 313 passes through the third cylinder mounting plate 312 and is fixed with a pressure block 314. The third pressing cylinder 313 drives the pressure block 314 to descend and press it against the upper surface of the pipe. When the bending assembly bends the pipe, it prevents the pipe from overturning. At the same time, it can also ensure that during the airtightness test, the pipe rotation will prevent the insertion position of the insertion tube 307 from deviating.

[0055] The second pressing cylinder 311 is fixed on the top of the testing table 300. The second pressing cylinder 311 presses against the upper surface of the pipe to prevent the pipe from shifting during the testing process, which would cause the insertion position of the first sensor 310 to deviate (the second pressing cylinder 311 can be a commercially available ACK series corner cylinder).

[0056] like Figure 18 As shown, the clearance hole 332 penetrates vertically through one of the clamping plates 302 and the support plate 301. A lifting cylinder is fixed to the bottom of the testing table 300. The contact head 333 is fixed to the piston rod of the lifting cylinder and placed inside the clearance hole 332. The lifting cylinder drives the contact head 333 to rise and fall within the clearance hole 332. When the pipe is placed on the clamping plate 302, the second pressing cylinder 311 and the third pressing cylinder 313 press the pipe onto the clamping plate 302. The lifting cylinder drives the contact head 333 to rise to match the bottom groove structure of the pipe, improving the stability of the pipe clamping.

[0057] The bending assembly includes a rotary cylinder 315, a rotating plate 316, an extension plate 317, a fixing rod 318, a contact wheel 319, a receiving groove 320, a limiting nut 321, a limiting bracket 322, a clamping plate 323, a clamping groove 324, a second guide part 325, and an arc-shaped part 326. For example... Figure 18 As shown, the cylinder body of the rotary cylinder 315 is fixed to the top of the testing table 300 by screws. A commercially available HRQ series rotary cylinder can be used for the rotary cylinder 315. The rotating plate 316 is fixed to the rotating part of the rotary cylinder 315 by screws, and the rotary cylinder 315 drives the rotating plate 316 to rotate. There are two extension plates 317, integrally connected to one side of the rotating plate 316, and they rotate synchronously with the rotating plate 316. The fixing rod 318 is installed on the side of the extension plate 317 away from the rotating plate 316 (specifically, the fixing rod 318 is a threaded rod, and a threaded hole is opened on the side of the extension plate 317 away from the rotating plate 316; the threaded rod is installed in the threaded hole of the extension plate 317 by screwing).

[0058] The contact wheel 319 is mounted on the fixing rod 318. Specifically, the fixing rod 318 includes an integrally connected screw part and a screw head. The outer circumferential surface of the screw part is provided with threads. The screw part is installed in the threaded hole of the extension plate 317 by screwing. The contact wheel 319 has a through mounting hole along the axial direction. The diameter of the mounting hole is slightly larger than the outer diameter of the screw part, ensuring that the contact wheel 319 can be installed on the screw part and abut against the screw head on the side near the screw part.

[0059] The limiting nut 321 is screwed onto the screw and abuts against the side of the contact wheel 319 away from the screw head. The limiting nut 321 and the screw head limit the contact wheel 319, preventing it from shifting and causing the pipe to twist when bending. The receiving groove 320 is formed on the outer circumference of the contact wheel 319. The cross-section of the receiving groove 320 is arc-shaped, which limits the placement of the pipe and prevents it from shifting to both sides and twisting when bending.

[0060] like Figure 18 As shown, when bending the pipe, the lower contact wheel 319 is used to bend the pipe upwards against it. When the rotary cylinder 315 is reset, another set of contact wheels 319 pushes the bent pipe to a horizontal position.

[0061] like Figure 19As shown, the limiting frame 322 is fixed to one side of the support frame 327 by screws. The limiting frame 322 is L-shaped. To improve the structural strength of the limiting frame 322, a reinforcing plate is fixed to the inside of the L-shaped limiting frame 322. Specifically, the two right-angled sides of the reinforcing plate abut against the two sides of the L-shaped limiting frame 322. There are two clamping plates 323, which are fixed to one side of the limiting frame 322 by screws and are spaced apart. A groove 324 is formed between the two clamping plates 323. After the pipe is bent, it rotates into the groove 324 to ensure that the pipe will not twist to both sides when bent, so as to avoid affecting the subsequent airtightness test.

[0062] The second guide portion 325 is obliquely formed inside the two clamping plates 323 to guide the pipe as it rotates into the clamping groove 324. The arc-shaped portion 326 is provided inside the second guide portion 325. The arc-shaped portion 326 makes the second guide portion 325 and the clamping groove 324 smoothly connected, avoiding scratches on the outer wall of the pipe when bending the pipe.

[0063] like Figure 17 As shown, the detection assembly is used to perform airtightness testing on the pipeline at two extreme positions: 0° and 90°. The detection assembly includes a first sliding cylinder 304, a first sliding plate 305, a fixed plate 306, an insertion tube 307, a second sliding cylinder 308, a second sliding plate 309, a first sensor 310, a vertical plate 328, a third linear sliding stage 329, a third sliding plate 330, and a second sensor 331. The first sliding cylinder 304 and the second sliding cylinder 308 are both fixed to the top of the support plate 301 by screws and are located on both sides of the pipeline.

[0064] The first slide plate 305 is fixed to the sliding part of the first slide cylinder 304 by screws. The fixing plate 306 is fixed to the top of the first slide plate 305 by screws. An adapter groove for the insertion tube 307 is provided on the opposite side of the first slide plate 305 and the fixing plate 306, allowing the insertion tube 307 to be installed between the first slide plate 305 and the fixing plate 306. The outer side of the insertion tube 307 is connected to the air pump via a flexible tube.

[0065] The second slide plate 309 is fixed to the sliding part of the second slide cylinder 308 by screw fastening. The first sensor 310 is fixed to the second slide plate 309. When the pipe is placed in the slot 324 of the clamping plate 323, the first slide cylinder 304 and the second slide cylinder 308 respectively drive the insertion tube 307 and the first sensor 310 to move inward and insert them into the two ends of the pipe respectively. Then, the pipe is checked for air leakage in a horizontal state.

[0066] The upright plate 328 is vertically fixed to the top of the support frame 327. The third linear slide 329 is fixed to one side of the upright plate 328. The third slide plate 330 is fixed to the sliding part of the third linear slide 329 by screws. The third linear slide 329 drives the third slide plate 330 to rise and fall. The second sensor 331 is fixed to the third slide plate 330. When the bending assembly bends the pipe by 90° until the pipe is in the slot 324, the third linear slide 329 drives the third slide plate 330 to fall, so that the second sensor 331 is inserted into the other end of the pipe to detect whether there is an air leak when the pipe is bent to 90°.

[0067] The detection principle of the detection component is as follows: During inspection, the operator removes the screw-fastened pipe from the conveyor belt and places it in the clamping groove 303. Subsequently, the second pressing cylinder 311 and the third pressing cylinder 313 work together to press and fix the pipe in the clamping groove 303. This pressing operation effectively prevents the pipe from rotating or shifting during subsequent insertion processes, ensuring the accuracy of the inspection position. Once the pipe is stably fixed and in a horizontal position, the first sliding cylinder 304 drives the insertion tube 307 to move towards one end of the pipe until it is inserted into the pipe port and forms a sealed connection; simultaneously, the second sliding cylinder 308 drives the first sensor 310 to move towards the other end of the pipe until it aligns with the pipe port and forms a sealed connection. After the cannula 307 and the first sensor 310 are in place, an external air pump introduces a detection medium (such as gas) at a predetermined pressure into the pipeline through the cannula 307. The first sensor 310 at the other end of the pipeline is used to monitor the pressure change in the pipeline, thereby determining whether there is a leak in the pipeline under horizontal conditions (the first sensor 310 is a pressure sensor used to monitor the pressure change in the pipeline. By determining whether the pressure is lower than a preset threshold within a predetermined time, it can be determined whether there is a leak in the pipeline). Then, the second pressing cylinder 311 releases the pressing on the pipe, and the bending assembly drives the pipe to bend upward until the pipe is turned into the slot 324 (when bending the pipe, the contact wheel 319 below is used to resist the upward bending of the pipe). The third linear slide 329 drives the third slide plate 330 to descend, so that the second sensor 331 moves to the other end of the pipe until it docks with the pipe port and forms a sealed connection, detecting whether the pipe leaks when it is bent to 90°. After the detection is completed, when the rotary cylinder 315 resets, another set of contact wheels 319 pushes the bent pipe to the horizontal.

[0068] The above embodiments are only for illustrating the technical concept and features of the present invention, and are intended to enable those skilled in the art to understand the content of the present invention and implement it accordingly. They should not be construed as limiting the scope of protection of the present invention. All equivalent changes or modifications made in accordance with the spirit and essence of the present invention should be covered within the scope of protection of the present invention.

Claims

1. An assembly device for vacuum cleaner tubing, characterized in that, It includes: A screw-locking structure, comprising a feeding assembly for supporting a pipe, a screw-locking assembly disposed above the feeding assembly for locking screws on both sides of the pipe, and a transfer assembly disposed on one side of the screw-locking assembly for transferring the pipe after the screws are fastened. An upper screw structure is provided for transferring a screw to the screw-locking assembly; The detection structure includes a support component for supporting the pipe after screw fastening, a bending component disposed on one side of the support component and driving the pipe to rotate between two extreme positions of 0° and 90°, and a detection component for performing airtightness detection on the pipe at the two extreme positions of 0° and 90°.

2. The assembly equipment for vacuum cleaner tubing according to claim 1, characterized in that: The feeding assembly includes a frame (100), a carrier that is movable along the Y-axis on the top of the frame (100), and a clamping unit that is rotatably mounted on the top of the carrier. The clamping unit is used to clamp the pipe and drive it to rotate in both directions. The screw fastening assembly fastens screws to the two side walls of the pipe.

3. The assembly equipment for vacuum cleaner tubing according to claim 2, characterized in that: The screw fastening assembly includes a gantry frame (117) mounted above the frame (100), a movable frame (118) movably disposed on one side of the gantry frame (117) along the X-axis, a lifting plate (119) vertically mounted on one side of the movable frame (118), a screwdriver sleeve (133) fixed to the bottom of the lifting plate (119), and an electric screwdriver bit (123) height-adjustable disposed on one side of the lifting plate (119) and cooperating with the screwdriver sleeve (133).

4. The assembly equipment for vacuum cleaner tubing according to claim 3, characterized in that: The transfer assembly includes a transfer plate (135) movable along the Y-axis on one side of the gantry (117), a mounting bracket (137) vertically mounted on one side of the transfer plate (135), and clamping units adjustablely mounted on both sides of the mounting bracket (137), the clamping units being used to clamp the pipe after screw fastening.

5. The assembly equipment for vacuum cleaner tubing according to claim 3, characterized in that: The screw-on structure includes a feeding rack (200) for conveying screws, a support frame fixed to the outlet side of the feeding rack (200), a receiving block (213) slidably installed in the support frame, an air pipe (223) installed at the bottom of the support frame, and a picking mechanism disposed in the receiving block (213). The picking mechanism alternately receives screws from the outlet side of the feeding rack (200) and transfers them into the air pipe (223). The air pipe (223) is connected to the screwdriver sleeve (133).

6. The assembly equipment for vacuum cleaner tubing according to claim 5, characterized in that: The material handling mechanism includes a first clearance groove (221) opened on the side of the receiving block (213) near the feeding rack (200), a drop groove (222) that passes through the receiving block (213) vertically and connects the first clearance groove (221) and the air pipe (223), a through groove (215) that passes through the receiving block (213) and connects to the first clearance groove (221), a receiving plate (216) that is slidably inserted into the through groove (215), and a second clearance groove (224) opened on the side of the receiving plate (216) near the feeding rack (200); When the receiving plate (216) is in the receiving position, the receiving plate (216) extends to receive the screws on the feeding rack (200); When the receiving plate (216) is in the dropping position, the receiving plate (216) retracts to release the support of the screw.

7. The assembly equipment for vacuum cleaner tubing according to claim 6, characterized in that: The material handling mechanism further includes a top plate (209) fixed on the side of the support frame away from the feeding frame (200), a front top (210) disposed on the inner side of the top plate (209), a rear retracted portion (211) disposed on both sides of the front top (210), a connecting portion (212) connecting the front top (210) and the rear retracted portion (211) and disposed at an inclination, a drive block (217) integrally connected to one side of the receiving plate (216) and elastically connected to the receiving block (213), and a stop wheel (220) rotatably mounted in the drive block (217); When the receiving plate (216) is in the receiving position, the abutment wheel (220) contacts the front top (210) and pushes the receiving plate (216) out; When the receiving plate (216) is in the dropping position, the abutment wheel (220) contacts the retracted portion (211) to retract the receiving plate (216).

8. The assembly equipment for vacuum cleaner tubing according to claim 1, characterized in that: The bearing assembly includes a testing platform (300), clamping plates (302) fixed to the top of the testing platform (300) and spaced apart, a clamping groove (303) formed on the top of the clamping plate (302), and a pressure block (314) pressed onto the pipe.

9. An assembly device for a vacuum cleaner pipe according to claim 8, characterized in that: The bending assembly includes a rotating plate (316) rotatably mounted on the top of the testing table (300), two connecting plates (125) integrally connected to one side of the rotating plate (316), a contact wheel (319) mounted on the side of the connecting plate (125) away from the rotating plate (316), a receiving groove (320) opened on the outside of the contact wheel (319), a limiting frame (322) fixed on the top of the testing table (300), a clamping plate (323) fixed on one side of the limiting frame (322) and spaced apart, and a slot (324) formed between the clamping plates (323). When the pipe is bent to 90°, the pipe is inserted into the slot (324).

10. An assembly device for a vacuum cleaner pipe according to claim 9, characterized in that: The detection assembly includes a tube (307) movably disposed on the top of the detection platform (300) and located on both sides of the pipe, a first sensor (310), and a second sensor (331) movably disposed above the limit frame (322). The tube (307) is inserted into one end of the pipe. When the pipe is in a horizontal state, the first sensor (310) is inserted into the other end of the pipe; When the pipe is bent to 90°, the second sensor (331) is inserted into the other end of the pipe.

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