Intelligent machining equipment for external threads of stainless steel pipe fitting

Abstract

The invention relates to the field of pipe fitting machining, and discloses stainless steel pipe fitting external thread intelligent machining equipment which comprises a machining platform, a machining platform, a control system and a control system, and the machining platform is provided with a mounting cavity and a conveying cavity which is filled with liquid; the fixing strips are arranged in the conveying cavity, the tops of the fixing strips are connected with a plurality of separation convex strips, two moving strips are further arranged in the conveying cavity, the tops of the moving strips are connected with a plurality of lifting convex strips, and the lifting convex strips are located on the two sides of the separation convex strips and are arranged in the conveying cavity in a sliding mode; compared with the problems that in the prior art, manual piece-by-piece feeding and discharging depend on, and efficiency is low, stable limiting and ordered arrangement of the pipe fittings are achieved through the combined structure of the fixing strips and the separation protruding strips, and the pipe fittings are prevented from being overlapped and stacked in liquid. By means of the position selective lifting action of the lifting protruding strips, one-by-one, directional and reliable conveying of pipe fittings is achieved, interference, clamping stagnation or dislocation of multiple pieces is effectively avoided, and the feeding precision and the takt control capacity are remarkably improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of pipe fitting processing, in particular to a stainless steel pipe fitting external thread intelligent processing equipment. BACKGROUND

[0002] As an important connecting and sealing element, the stainless steel pipe fitting is widely used in petrochemical, shipbuilding, food, medicine and other industries, and the external thread processing quality of the stainless steel pipe fitting is directly related to the assembly reliability and system sealing. The existing external thread processing equipment mostly adopts numerical control processing and special machine tool processing, which can better meet the requirements of thread precision and surface quality.

[0003] However, in the actual production process, the workers still need to replace and prepare the workpieces after each workpiece is processed, which affects the overall production efficiency and continuous operation ability to some extent. In order to meet the needs of high efficiency, stability and automation of the industry, it is urgent to optimize and improve the existing processing equipment. SUMMARY

[0004] In view of the defects of the prior art, the present application provides a stainless steel pipe fitting external thread intelligent processing equipment, which aims to at least alleviate the above problems to some extent.

[0005] The above technical purpose of the present application is realized by the following technical scheme: A stainless steel pipe fitting external thread intelligent processing equipment, comprising: A processing platform having a mounting cavity and a conveying cavity, the conveying cavity being filled with a liquid; A plurality of fixed strips are arranged in the conveying cavity, the top of the fixed strip is connected with a plurality of separation convex strips, and two movable strips are arranged in the conveying cavity, the top of the movable strip is connected with a plurality of lifting convex strips, and is slidably arranged in the conveying cavity on both sides of the plurality of separation convex strips; A top frame is arranged on the top of the processing platform, a fixing part for fixing the pipe fitting is arranged in the top frame, and a rotating part for rotating the pipe fitting is arranged on the top frame; A lifting table is arranged in the conveying cavity, the lifting table vertically corresponds to the fixing part, and is used for moving one of the pipe fittings to the fixing part by moving the lifting table downward; A conveying component is arranged between the mounting cavity and the lifting table, and is used for moving the lifting table up and down; A turning component is arranged on the top frame, and is used for processing the external thread of the pipe fitting fixed on the fixing part.

[0006] Preferably, one side of the processing platform is provided with an inlet, and a receiving plate is arranged in the inlet; the other side of the processing platform is provided with an outlet, and a wedge-shaped strip is fixed in the outlet; and the fixing strip is fixed on the wedge-shaped strip.

[0007] Preferably, the turning part comprises a translation block slidingly connected to the top frame, a vertical translation block arranged on the translation block, an oil cylinder a connected to the translation block, a driving shaft of the oil cylinder a fixed to the vertical translation block, a turning tool head fastened to the bottom of the vertical translation block through bolts, a lead screw rotatably connected to the top frame, and a motor a connected to the top frame, a driving shaft of the motor a fixed to the lead screw, and the translation block threadedly connected to the lead screw.

[0008] Preferably, the rotating part comprises a spline shaft rotatably connected to the top frame, a spline sleeve slidingly connected to the spline shaft, and a spring a connected between the spline shaft and the spline sleeve; the spline sleeve is provided with a positioning boss; the top frame is provided with a motor b, and a driving shaft of the motor b is fixed to the spline shaft.

[0009] Preferably, the fixing part comprises an elastic telescopic rod connected to the top frame, a top strip connected to a telescopic shaft of the elastic telescopic rod, and a guide rail a connected to the top strip; the spline sleeve is rotatably connected to a connecting frame, and the connecting frame is connected to a guide rod a slidingly fitted with the guide rail a.

[0010] Preferably, the conveying part comprises a conveying frame slidingly connected to the mounting cavity; a rhombic strip is connected to the top of the conveying frame; the top of the mounting cavity is provided with a guide rail b; a guide rod b is slidingly connected to the guide rail b, and a spring b is connected between the guide rail b and the guide rod b; and the conveying frame and the mounting cavity are connected by a spring c.

[0011] Preferably, a top rod is slidingly connected to the bottom of the conveying cavity; the bottom of the top rod extends into the mounting cavity and is rotatably connected to a connecting rod; the bottom end of the connecting rod is rotatably connected to the guide rod b; and the top rod is located at the bottom of the lifting platform.

[0012] Preferably, a positioning plate is slidingly connected to the conveying cavity; the bottom of the positioning plate is connected to a guide rail c; the guide rail c is slidingly fitted with a guide rod c; a connecting rod is connected to the conveying frame; the top of the connecting rod extends into the conveying cavity and is fixed to the guide rod c.

[0013] Preferably, an oil cylinder b is connected to the mounting cavity; a driving shaft of the oil cylinder b extends into the conveying cavity and is connected to the lifting platform.

[0014] Preferably, a plurality of roller shafts are rotatably connected to the inner wall of the lifting platform.

[0015] To sum up, the present application mainly has the following beneficial effects: Compared with the prior art which relies on manual piece-by-piece feeding and discharging, the embodiment of the present application realizes stable positioning and orderly arrangement of the pipe fittings through the combined structure of the fixed strip and the separation protruding strip, avoiding overlapping and accumulation of the pipe fittings in the liquid. Through the selective lifting action of the position of the lifting protruding strip, the piece-by-piece, directional and reliable conveying of the pipe fittings is realized, effectively avoiding multiple interference, jamming or misplacement, and significantly improving the feeding accuracy and beat control capability.

[0016] Through the vertical fixed-point lifting of the lifting platform, stable butt joint and accurate positioning of the pipe fittings and the fixed part are realized, ensuring the attitude consistency in the machining process, cooperating with the rotating part and the turning part, realizing stable external thread machining of the pipe fittings in a stable state, and improving the surface quality and size consistency.

[0017] In addition, the liquid filling design has the advantages of being able to fully lubricate and pretreat the pipe fittings before machining, reducing the turning resistance, and after machining, combining the liquid disturbance and vibration cleaning effect generated during the lifting and lowering process, which is helpful for the removal of pipe fittings surface residues and improves the product cleanliness. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is the overall structure schematic diagram of the present application; Figure 2 is the machining platform structure schematic diagram of the present application; Figure 3 is the machining platform structure sectional view schematic diagram of the present application; Figure 4 is another machining platform structure sectional view schematic diagram of the present application; Figure 5 is Figure 3 is the local structure enlarged schematic diagram of A in the present application; Figure 6 is Figure 4 is the local structure enlarged schematic diagram of B in the present application; Figure 7 is the conveying part structure schematic diagram of the present application; Figure 8 is the connecting rod structure schematic diagram of the present application.

[0019] REFERENCE NUMERALS: 100, machining platform; 101, mounting cavity; 102, conveying cavity; 103, fixed strip; 104, separation protruding strip; 105, moving strip; 106, lifting protruding strip; 107, top frame; 108, lifting platform; 200, feeding port; 201, receiving plate; 202, discharging port; 203, wedge-shaped strip; 300, translation block; 301, vertical block; 302, oil cylinder a; 303, turning tool head; 304, screw rod; 305, motor a; 400, spline shaft; 401, spline sleeve; 402, spring a; 403, positioning boss; 404, motor b; 405, elastic telescopic rod; 406, top strip; 407, guide rail a; 408, connecting frame; 409, guide rod a; 500, conveying frame; 501, rhombus strip; 502, guide rail b; 503, guide rod b; 504, spring b; 505, spring c; 506, top rod; 507, connecting rod; 600, positioning plate; 601, guide rail c; 602, guide rod c; 603, connecting rod; 604, oil cylinder b; 605, roller shaft. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0021] REFERENCE Figures 1-8 A stainless steel pipe fitting external thread intelligent machining equipment, the embodiment provides a stainless steel pipe fitting external thread intelligent machining equipment, which comprises a machining platform 100, the machining platform 100 has an installation cavity 101 and a conveying cavity 102, wherein the conveying cavity 102 is filled with a liquid.

[0022] A plurality of fixed strips 103 are arranged in the conveying cavity 102 and are spaced apart along the conveying direction. The top of the fixed strip 103 is connected with a plurality of separation convex strips 104, which are arranged along the length direction of the fixed strip 103, and the plurality of separation convex strips 104 are spaced apart from each other in space, which are used for transverse limiting and spacing guiding of the pipe fitting, so that the pipe fittings are arranged in order in the conveying cavity 102. The top of the separation convex strip 104 can be inclined or arc-shaped structure, The conveying cavity 102 is also provided with two moving strips 105, which are respectively located on the two sides of the plurality of separation convex strips 104 and are slidably arranged in the vertical direction relative to the conveying cavity 102. The top of each moving strip 105 is connected with a plurality of lifting convex strips 106, and the positions of the lifting convex strips 106 correspond to the gaps between the separation convex strips 104. Through the lifting movement of the moving strip 105, the lifting convex strip 106 can rise through the gap between the separation convex strips 104 at a specific time, contact the lower part of the pipe fitting, and lift it to a predetermined position.

[0023] The conveying cavity 102 is provided with a lifting platform 108 in the middle area of the arrangement between the fixed strips 103. The lifting platform 108 vertically corresponds to the fixed part, and is used to lift the single pipe to the fixed part. The lifting platform 108 is driven by the conveying component arranged between the mounting cavity 101 and the lifting platform 108 to realize the up and down movement.

[0024] The fixed part is arranged in the top frame 107, and is used to clamp and position the pipe before processing. The top frame 107 is also provided with a rotating part, which is used to rotate the fixed pipe to complete the machining task of the external thread.

[0025] In addition, the moving strip 105 is in the initial lowered position, and the pipe is arranged in the conveying cavity 102 by the plurality of separation convex strips 104. When the lifting platform 108 is lowered to the lowest position, the two moving strips 105 are synchronously moved upward, the connected lifting convex strip 106 passes through the gap between the separation convex strips 104, the pipe at the corresponding position is lifted from the limiting state, and is pushed to the middle position; when the pipe is accurately sent above the lifting platform 108, the lifting platform 108 is lifted, the pipe is sent to the fixed part and is clamped and processed.

[0026] Further, the top frame 107 is also provided with a turning component, which is used for external thread machining of the pipe fixed on the fixed part.

[0027] Through the above setting: 1、First, a plurality of fixed strips 103 are arranged in the conveying cavity 102 along the conveying direction, and the top connected separation convex strips 104 form a plurality of limiting grooves for transverse limiting and spacing guiding of the pipe. The pipe is partially immersed in the liquid in the conveying cavity 102, and is arranged between the separation convex strips 104 in the waiting processing state. The liquid can be lubricating liquid or water, and the specific type can be determined flexibly according to the process requirement.

[0028] Before processing, the liquid can realize the immersion lubrication of the pipe surface, especially when the lubricating liquid is selected, which can effectively reduce the friction resistance in the subsequent turning process, improve the cutting stability and the thread surface quality.

[0029] 2、When the processing cycle is started, the moving strip 105 is in the initial lowered state, and the connected lifting convex strip 106 is located below the separation convex strip 104 and does not contact the pipe. When the processing is finished, the lifting platform 108 is lowered to the lowest point, and enters the next feeding preparation stage.

[0030] Subsequently two moving strips 105 begin to move synchronously upward, the lifting convex on it holds the lower surface of the pipe from below, in the process of continuing to rise, the pipe is gradually lifted up, due to the lifting convex 106 is provided with inclined slope, the pipe under the joint action of gravity and lifting angle, slide and roll to the conveying direction, finally fall into the gap formed by the next separation convex 104.

[0031] This single piece lifting feeding mode from bottom to top avoids the problems of multiple pieces sliding and blocking, realizes the accurate separation and orderly conveying of the pipe one by one, and is suitable for the smooth and easy rolling stainless steel pipe.

[0032] 3, when one of the pipes is lifted to the machining station, the lifting platform 108 rises, and the corresponding single pipe is pushed from the liquid to the position of the fixed part, in this process, the fixed part is clamped and positioned. Then, the rotating part starts to drive the clamped pipe to rotate; the turning part cooperates with the rotating movement to process the external thread of the pipe.

[0033] The cooperation of the fixed part and the rotating part ensures the positioning rigidity and rotation accuracy of the pipe during machining; the setting of the turning part realizes the direct machining of the workpiece in the fixed state, improves the overall automation level and the consistency of thread accuracy.

[0034] 4, after machining, the lifting platform 108 descends, and the fixed part is loosened. At this time, the machined pipe falls back to the gap between the separation convex 104 on the top of the fixed strip 103, and moves forward synchronously with the next cycle feeding rhythm.

[0035] After the machined pipe falls back, it is conveyed subsequently, and due to the action of the liquid medium, combined with the slight shaking caused by the lifting and falling action in the conveying process, it can produce a proper cleaning effect on the residual debris or cutting oil stains on the surface of the pipe, which helps to improve the cleanliness and subsequent assembly quality of the product.

[0036] On the basis of the above embodiment, further, one side of the machining platform 100 is provided with a feeding port 200, which communicates with the conveying cavity 102, and a inclined receiving plate 201 is arranged inside. The receiving plate 201 is used to receive the pipe conveyed by the outside or manually put, and guide it to slide into the conveying cavity 102 and fall on the fixed strips 103, to complete the automatic feeding.

[0037] The other side of the machining platform 100 is provided with a discharge port 202 for discharging the machined pipe from the machining platform 100. The discharge port 202 is provided with a wedge-shaped strip 203 for angle supporting and position limiting of the fixed strip 103 where the separation convex 104 is located.

[0038] With the above arrangement, during the loading stage, the pipes slide off the receiving plate 201 . Since the receiving plate 201 has an inclined structure, the pipes slide along its surface under the action of gravity, eventually naturally enter the conveying cavity 102 , and accurately fall into the fixing bar 103 .

[0039] During the unloading phase after processing is completed, the processed pipe falls back along the lifting platform 108 and falls back into the conveying chamber 102 between the fixed bar 103 and the separating ridge 104. During the subsequent feeding operation, the moving bar 105 and the lifting ridge 106 continue to lift and push the subsequent pipe forward, and the previous pipe moves to the discharge end according to the feeding rhythm.

[0040] The discharge port 202 at the end of the conveying cavity 102 forms an outlet area with a downward angle through the internal wedge-shaped strip 203. The processed pipes naturally slide out of the processing platform 100 under the guidance of gravity and angle, completing the unloading operation.

[0041] Furthermore, the tube remains partially submerged in the liquid throughout the entire machining cycle. Prior to machining, the liquid (e.g., lubricant) pre-lubricates the entire surface of the tube, improving surface quality and cutting stability during subsequent turning. After machining, the vibrations and fluid flow during the vertical and horizontal movements of the tube and during feeding disrupt any remaining cutting debris, dispersing, adsorbing, and diluting it, thus cleaning it.

[0042] On the basis of the above embodiment, further, the turning component includes a multi-stage motion structure provided on the top frame 107 .

[0043] Specifically, the turning assembly includes a translation block 300 slidably connected to the top frame 107. A vertically movable block 301 is mounted on the translation block 300 to support the turning tool. A vertically driven cylinder a302 is connected to the translation block 300. The drive shaft of the cylinder a302 is fixedly connected to the vertical block 301, driving the vertical block 301 up and down.

[0044] A turning tool head 303 is fastened to the bottom of the vertical moving block 301 by bolts for processing external threads on pipe fittings.

[0045] A lead screw 304 is rotatably connected to the top frame 107. One end of the lead screw 304 is connected to a motor a305 for driving its rotation. The drive shaft of the motor a305 is fixedly connected to the lead screw 304. The lead screw 304 is threadedly engaged with the translation block 300 to drive the translation block 300 to move laterally along the axis of the lead screw 304 (i.e., the turning direction).

[0046] Through the above setting, the turning part is composed of the structure combination of the motor a305 - the lead screw 304 - the translation block 300 - the oil cylinder a302 - the vertical moving block 301, and forms a tool system with bidirectional feeding adjustment capability, which can stably process the external thread of the stainless steel pipe fixed in the fixed part.

[0047] Specifically, when a pipe is sent to the machining station by the lifting platform 108 and is clamped by the fixed part, the motor a305 is started to drive the connected lead screw 304 to rotate. The lead screw 304 is in threaded cooperation with the translation block 300, and the rotary action of the motor a305 drives the translation block 300 to move linearly in the horizontal direction along the axis of the lead screw 304, so as to drive the turning tool head 303 to realize the feeding in the turning direction. During the turning process, the oil cylinder a302 drives the connected vertical moving block 301 to move up and down, so as to realize the feeding adjustment of the turning tool head 303 in the radial direction. The tool head is fastened to the lower end of the vertical moving block 301, and the fine adjustment control of the oil cylinder a302 can make the tool feeding depth more accurate, and the tool head can be quickly withdrawn after the machining is completed to prevent scratching the surface of the workpiece.

[0048] On the basis of the above embodiment, further, the rotating part comprises a set of spline driving structure installed on the top frame 107.

[0049] Specifically, the rotating part comprises a spline shaft 400 rotatably connected to the top frame 107, and a spline sleeve 401 slidably connected to the outside of the spline shaft 400. The spline shaft 400 and the spline sleeve 401 are in cooperation through the keyway structure, so as to ensure that the spline sleeve 401 can rotate synchronously during the rotation of the spline shaft 400, and at the same time has a certain axial movement capability.

[0050] A spring a402 is arranged between the spline shaft 400 and the spline sleeve 401, which is used to automatically push the spline sleeve 401 to the initial position in the non-driving state. A positioning boss 403 is connected to the spline sleeve 401, which is used to cooperate with the end face of the pipe when the spline sleeve 401 moves to a specific position, so as to realize positioning and limiting.

[0051] The top frame 107 is further connected with a motor b404, the driving shaft of which is fixedly connected with the spline shaft 400, which is used to provide power input for the rotating part to realize the rotary driving of the pipe.

[0052] Through the above setting, when a pipe is sent to the top by the lifting platform 108, the position of the positioning boss 403 is moved, the protruding part on the positioning boss 403 is inserted into the end face of the pipe, and the motor b404 is started to drive the output shaft and the spline shaft 400 to rotate. When the spline shaft 400 rotates, the spline sleeve 401 connected to the outside of the spline shaft 400 will keep synchronous rotation with the spline shaft 400 due to the cooperation of the keyway structure.

[0053] The spline structure ensures coaxial rotation rigidity during rotation, avoiding rotation eccentricity or slipping phenomenon caused by stress during processing.

[0054] On the basis of the above embodiment, further, the fixing part is used for clamping and positioning the stainless steel pipe fitting sent to the processing position, to ensure the stability and coaxiality during turning processing.

[0055] Specifically, the fixing part includes an elastic telescopic rod 405 connected to the top frame 107, which can be vertically telescopic, and a top bar 406 connected to the telescopic shaft of the elastic telescopic rod 405, for transmitting external force.

[0056] The top bar 406 is connected with a guide rail a 407 arranged in a horizontal direction, for providing linear guide support for the spline sleeve 401.

[0057] The spline sleeve 401 is rotatably connected with a connecting frame 408, one end of which is rotatably connected to the spline sleeve 401, and the other end is connected with a guide rod a 409 in sliding fit with the guide rail a 407. The guide rod a 409 can slide in the guide rail a 407.

[0058] Through the above setting, during the process that the lifting platform 108 moves upward to send the pipe fitting to the processing position, the lifting platform 108 can top touch the position of the top bar 406, the top bar 406 generates displacement to make the elastic telescopic rod 405 contract to generate potential energy.

[0059] At the same time, the rail a moves upward as a whole with the top bar 406, and the guide rail a 407 is internally slidingly fitted with the guide rod a 409, one end of which is inserted into the guide rail slot, and the other end is rotatably connected to the end of the connecting frame 408. The guide rod a 409 moves horizontally, and the horizontal displacement will exert a pulling force on the connecting frame 408 through the rotating connection point of the guide rod a 409 and the connecting frame 408, which can pull the spline sleeve 401 to generate axial displacement along its rotation axis.

[0060] The spline sleeve 401 still maintains the spline pair connection relationship with the spline shaft 400 during the axial sliding, so as to maintain the rotation freedom degree while moving axially. The spline sleeve 401 continues to move to the right until the front end positioning boss 403 contacts the pipe fitting end face or the transmission interface, forming a stable torque transmission connection relationship.

[0061] At this point, the spline sleeve 401 has been passively positioned, and the mechanical coupling with the processed pipe fitting is completed. In the subsequent rotation process, the spline shaft 400 is driven to rotate by the motor b 404, the spline shaft 400 drives the spline sleeve 401 to rotate synchronously, and the rotation motion is transmitted to the pipe fitting through the positioning boss 403, realizing the rotation driving of the pipe fitting.

[0062] When the machining is completed, the lifting platform 108 is lowered, and the top strip 406 is reset to the initial position under the restoring action of the elastic expansion rod 405; the guide rail a 407 is lowered, the guide rod a 409 is reversely slid, the connecting frame 408 is swung back, the spline sleeve 401 is axially retreated under the action of the spring a 402, and the pipe fitting is separated, completing the rotation release and clamping release process in this cycle and preparing for the next cycle of machining.

[0063] The structure ingeniously utilizes the natural contact behavior when the lifting platform 108 is raised, triggers the upward movement of the top strip 406 at the moment of feeding into position, thereby starting a series of passive mechanism linkage, so that the pipe fitting completes the rotation pre-connection preparation as soon as it is fed into the positioning site. Compared with the traditional clamping mechanism, the embodiment ensures compact action process and high beat efficiency.

[0064] On the basis of the above embodiment, further, the conveying component includes a conveying frame 500 slidingly connected in the mounting cavity 101, and a rhombus strip 501 is connected to the conveying frame 500 and used to push the conveying frame 500 to displace in the vertical direction. A guide rail b 502 is fixedly connected to the top of the mounting cavity 101, a guide rod b 503 is slidingly connected in the guide rail b 502, and a spring b 504 is connected between the guide rod b 503 and the guide rail b 502 and used to provide a guide return function. A spring c 505 is further connected between the conveying frame 500 and the mounting cavity 101 and used to provide a vertical reset elastic force.

[0065] Through the above setting, when the lifting platform 108 is raised to the machining position and the turning is completed, the lifting platform 108 is immediately moved downward. As it is lowered to a predetermined low position, the guide rod b 503 is caused to slide in the horizontal direction along the guide rail b 502. During the sliding of the guide rod b 503, one end thereof can abut against the upper inclined surface structure of the rhombus strip 501 and push the rhombus strip 501 to move upward in the vertical direction, so that the two moving strips 105 are in the vertical direction.

[0066] During the upward movement of the moving strip 105, the plurality of lifting protrusions 106 connected to the top thereof are moved upward, forming an effective jacking force on the bottom of the pipe fitting at the position above, so that the pipe fitting is separated from the original limiting state, thereby achieving the purpose of conveying the pipe fitting.

[0067] The structure realizes the sequential logic of automatic feeding after machining is completed, ensures that feeding is performed for a single pipe each time, avoids multiple pipes to be misaligned or stacked obliquely, and improves the equipment operation efficiency and the automation level.

[0068] Further based on the above embodiment, a top rod 506 is slidingly connected to the bottom of the conveying cavity 102, and the bottom of the top rod 506 penetrates through the machining platform 100 and extends into the mounting cavity 101. The bottom of the top rod 506 is connected with a connecting rod 507 through a rotary pair, and the other end of the connecting rod 507 is rotatably connected to the guide rod b 503. The top rod 506 is located at the bottom of the lifting platform 108 and is in contact with the lifting platform 108.

[0069] Through the above arrangement, when the lifting platform 108 completes the turning of the current pipe and descends, the bottom of the lifting platform 108 will contact the top rod 506 and drive the top rod 506 to slide downward during the downward movement. With the downward movement of the top rod 506, the connecting rod 507 at the bottom end of the top rod 506 is deflected, and the other end of the connecting rod 507 is connected with the guide rod b 503, which pulls the guide rod b 503 to slide along the guide rail b 502.

[0070] The structure forms a linkage path of “the lifting platform 108 descends → the top rod 506 moves → the connecting rod 507 pulls the guide rod b 503 → the guide rod b 503 slides → the diamond-shaped strip 501 is pushed up”, which ensures that the feeding operation of the next pipe is triggered after the lifting platform 108 completely leaves the machining position. The feeding drive can be completed only by relying on the downward displacement of the lifting platform 108, and the feeding timing is accurately aligned with the end of turning, which effectively avoids the problems of early feeding or missed feeding. In addition, the closed force transmission link is formed between the top rod 506, the connecting rod 507 and the guide rod b 503, which avoids the misoperation caused by the inertia of the lifting platform and ensures the stability and beat consistency of feeding.

[0071] Further based on the above embodiment, a positioning plate 600 for transverse limiting of the pipe is slidingly connected in the conveying cavity 102, and the bottom of the positioning plate 600 is connected with a guide rail c 601, and the guide rail c 601 is slidingly fitted with a guide rod c 602. The conveying frame 500 in the mounting cavity 101 is provided with a connecting rod 603, and the top of the connecting rod 603 extends into the conveying cavity 102 in the vertical direction and is fixedly connected with the guide rod c 602.

[0072] Through the above arrangement, after the equipment completes the turning of a pipe, the lifting platform 108 puts the pipe back to the conveying area and continues to move downward. When the lifting platform 108 descends to the lowest position, the bottom of the lifting platform 108 will press the top rod 506, thereby driving the connecting rod 507 to rotate and making the guide rod b 503 generate a horizontal sliding movement along the guide rail b 502.

[0073] The guide rod b503 is located at the middle upper part of one side of the rhombus strip 501, so that in the initial stage of sliding, the end of the guide rod b503 contacts and pushes the upper inclined surface of the rhombus strip 501, so that the rhombus strip 501 is moved upward in the vertical direction as a whole, thereby driving the connected conveying frame 500 to move upward synchronously, pushing the two moving strips 105 to move upward, and completing the lifting and conveying action of a new pipe.

[0074] After the pipe is successfully conveyed and positioned on the lifting platform 108, the lifting platform 108 is started again to move upward to lift the pipe to the machining position. Since the lifting platform 108 is separated from the downward pressure of the push rod 506, the connecting rod 507 drives the guide rod b503 to slide reversely, and the push rod 506 is immediately moved upward to reset.

[0075] Since the guide rod b503 is located at the opposite side of the rhombus strip 501, the guide rod b503 contacts the other inclined surface of the rhombus strip 501, so that the conveying frame 500 is driven to move downward under the restoring action of the spring b504. The downward movement of the conveying frame 500 drives the guide rod c602 to move downward in the guide rail c601 through the connecting rod 603, thereby driving the positioning plate 600 fixedly connected with the guide rod c602 to move horizontally, and achieving self-adaptive lateral limiting and correction of the pipe conveyed to the position.

[0076] Through the above structure and action linkage, the positioning plate 600 can automatically move horizontally once after the lifting platform 108 completes the lifting action each time, so that the next pipe is ensured to be located at the center of the preset machining position, and deviation is avoided. The positioning is completed by using the structural displacement naturally generated by the machining cycle, and the stability of machining is improved.

[0077] Further, on the basis of the above embodiment, an oil cylinder b604 for driving the lifting platform 108 to move up and down is connected in the mounting cavity 101. The driving shaft of the oil cylinder b604 extends into the conveying cavity 102 in the vertical direction and is connected with the lifting platform 108 to provide driving in the vertical direction.

[0078] Through the above setting, in the working process, the oil cylinder b604 is used as a core lifting driving execution element. The driving shaft of the oil cylinder b604 is extended and retracted under the action of oil pressure, thereby driving the lifting platform 108 fixedly connected with the oil cylinder b604 to move up and down in the vertical direction. When the oil cylinder b604 is extended upward, the lifting platform 108 moves upward, and the pipe supported thereon is clamped for machining at the top fixed part. After turning, the oil cylinder b604 is retracted, the lifting platform 108 is driven to move downward, and the machining cycle is completed.

[0079] Further, on the basis of the above embodiment, a plurality of roller shafts 605 are rotationally connected to the inner wall of the lifting platform 108. The plurality of roller shafts 605 are uniformly arranged along the pipe supporting surface of the lifting platform 108 and are used to provide rolling support during the rotation of the pipe.

[0080] With the above arrangement, when the lifting platform 108 is raised to support a single pipe to a machining position, the pipe will contact the plurality of rollers 605 located on the inner wall of the lifting platform 108. Since the rollers 605 are free to rotate, the pipe can achieve low-friction rolling contact on its surface during vertical lifting, which can effectively reduce the frictional resistance between the pipe and the lifting platform 108, especially during turning machining.

[0081] Although embodiments of the present application have been shown and described, it is to be understood that various modifications, substitutions, replacements and changes can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. An intelligent processing equipment for external threads of stainless steel pipe fittings, characterized in that: include: A processing platform (100), the processing platform (100) having a mounting cavity (101) and a conveying cavity (102), the conveying cavity (102) being filled with liquid; A plurality of fixed bars (103) are provided in the conveying cavity (102), the tops of the fixed bars (103) are connected to a plurality of separating ridges (104), and two movable bars (105) are further provided in the conveying cavity (102), the tops of the movable bars (105) are connected to a plurality of lifting ridges (106), which are located on both sides of the plurality of separating ridges (104) and are slidably provided in the conveying cavity (102); A top frame (107) is provided on the top of the processing platform (100), wherein a fixing portion for fixing a pipe is provided in the top frame (107), and a rotating portion for rotating the pipe is also provided on the top frame (107); A lifting platform (108) is provided in the conveying cavity (102), the lifting platform (108) being vertically corresponding to the fixing portion and being used for moving the lifting platform (108) upward to move one of the pipes to the fixing portion; A conveying component provided between the installation cavity (101) and the lifting platform (108), used for moving the lifting platform (108) up and down; The turning component provided on the top frame (107) is used for processing the external thread of the pipe fixed on the fixing part.

2. The intelligent processing equipment for external threads of stainless steel pipe fittings according to claim 1 is characterized in that: A feed port (200) is provided on one side of the processing platform (100), in which a receiving plate (201) is provided. A discharge port (202) is provided on the other side of the processing platform (100), in which a wedge-shaped bar (203) is fixed. The fixing bar (103) is fixed on the wedge-shaped bar (203).

3. The intelligent processing equipment for external threads of stainless steel pipe fittings according to claim 1 is characterized in that: The turning component comprises a translation block (300) slidably connected to the top frame (107), a vertical movement block (301) is provided on the translation block (300), an oil cylinder a (302) is connected to the translation block (300), a driving shaft of the oil cylinder a (302) is fixed to the vertical movement block (301), a turning tool head (303) is fastened to the bottom of the vertical movement block (301) by bolts, a lead screw (304) is rotatably connected to the top frame (107), a motor a (305) is further connected to the top frame (107), a driving shaft of the motor a (305) is fixed to the lead screw (304), and the translation block (300) is threadedly engaged with the lead screw (304).

4. The intelligent processing equipment for external threads of stainless steel pipe fittings according to claim 1, characterized in that: The rotating part includes a spline shaft (400) rotatably connected to the top frame (107), a spline sleeve (401) is slidably connected to the spline shaft (400), a spring a (402) is connected between the two, a positioning boss (403) is connected to the spline sleeve (401), and a motor b (404) is connected to the top frame (107), and a drive shaft of the motor b (404) is fixed to the spline shaft (400).

5. The intelligent processing equipment for external threads of stainless steel pipe fittings according to claim 4 is characterized in that: The fixing portion comprises an elastic telescopic rod (405) connected to the top frame (107), a top bar (406) is connected to the telescopic shaft of the elastic telescopic rod (405), a guide rail a (407) is connected to the top bar (406), a connecting frame (408) is rotatably connected to the spline sleeve (401), and a guide rod a (409) is connected to the connecting frame (408) and is slidably engaged with the guide rail a (407).

6. The intelligent processing equipment for external threads of stainless steel pipe fittings according to claim 1, characterized in that: The conveying component includes a conveying frame (500) slidably connected to the installation cavity (101), a diamond bar (501) extending from the top of the conveying frame (500) to the conveying frame (500), a guide rail b (502) connected to the top of the installation cavity (101), a guide rod b (503) slidably connected in the guide rail b (502), a spring b (504) connected therebetween, and a spring c (505) connected between the conveying frame (500) and the installation cavity (101).

7. The intelligent processing equipment for external threads of stainless steel pipe fittings according to claim 6, characterized in that: The bottom of the conveying chamber (102) is slidably connected to a push rod (506), the bottom of the push rod (506) extends into the installation chamber (101) and is rotatably connected to a connecting rod (507), the bottom end of the connecting rod (507) is rotatably connected to the guide rod b (503), and the push rod (506) is located at the bottom of the lifting platform (108).

8. The intelligent processing equipment for external threads of stainless steel pipe fittings according to claim 6, characterized in that: A positioning plate (600) is slidably connected in the conveying cavity (102), a guide rail c (601) is connected to the bottom of the positioning plate (600), a guide rod c (602) is slidably fitted in the guide rail c (601), a connecting rod (603) is connected to the conveying frame (500), and the top of the connecting rod (603) extends into the conveying cavity (102) and is fixed to the guide rod c (602).

9. The intelligent processing equipment for external threads of stainless steel pipe fittings according to claim 1, characterized in that: An oil cylinder b (604) is connected to the installation cavity (101), and a drive shaft of the oil cylinder b (604) extends into the conveying cavity (102) and is connected to the lifting platform (108).

10. The intelligent processing equipment for external threads of stainless steel pipe fittings according to claim 1, characterized in that: The inner wall of the lifting platform (108) is rotatably connected to a plurality of rollers (605).

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