Full-automatic pass-type piston rod efficient and stable machining device

Abstract

The invention relates to the technical field of piston rod machining equipment, in particular to a full-automatic pass-type efficient and stable piston rod machining device which comprises a feeding mechanism, a machining mechanism and a discharging mechanism, and the machining mechanism comprises a lathe body, a positioning assembly, an auxiliary assembly, a first driving assembly, a limiting assembly and a second driving assembly. The first driving assembly comprises a fixing ring and a plurality of servo motors a, the limiting assembly comprises a tool rest, a plurality of lead screws, a hollow column, a tool bit and an expanding and supporting plate, the feeding mechanism conveys a piston rod into the lathe body, and the positioning assembly prepositions the two ends of the piston rod. A servo motor a drives a lead screw to drill a piston rod through a tool bit and support the inner wall of a hole through an expanding and supporting plate, a second driving assembly drives the piston rod supported by the expanding and supporting plate to rotate, the piston rod is machined through a machining mechanism, and a discharging mechanism collects the piston rod in a centralized mode. The problems that in the prior art, stability is poor, the function is single, and machining efficiency is low are solved.

Description

Technical Field

[0001] This invention relates to the field of piston rod processing equipment technology, specifically to a fully automatic through-type piston rod high-efficiency and stable processing device. Background Technology

[0002] As a key transmission component connecting the piston to the crankshaft or working mechanism, the piston rod is widely used in hydraulic cylinders, pneumatic cylinders, internal combustion engines, compressors and engineering machinery. It is a moving component with frequent movement and high technical requirements. Therefore, the machining quality of the piston rod directly determines the reliability, durability and efficiency of the entire system.

[0003] The machining of piston rods requires multiple steps, including cutting, grinding the piston rod surface, and drilling at designated locations. However, existing technologies involve fragmented processes, numerous clamping operations, and long production cycles. Piston rod machining equipment typically can only perform one process at a time, resulting in low machining efficiency. Furthermore, the fixation effect on the piston rod during machining is inadequate, making it prone to displacement.

[0004] A Chinese invention patent with publication number CN114714203B discloses an automated grinding equipment for piston rod production, comprising: a base; a first clamping assembly disposed on the base for fixing one end of the piston rod; and a second clamping assembly disposed on the base for cooperating with the first clamping assembly to fix the piston rod, the second clamping assembly including: a positioning member for positioning the piston rod; and a first telescopic member fixedly installed in the middle of the positioning member, with a clamping member rotatably mounted on its output end. This equipment achieves precise positioning of the piston rod axis and is applicable to piston rods of different lengths, ensuring the stability of piston rod rotation, avoiding the influence of the clamping device on the piston rod during grinding, enabling comprehensive grinding in one pass, and collecting grinding residue.

[0005] However, it can only perform grinding on the surface of the piston rod. When drilling or grinding the inner hole, the ground piston rod needs to be taken out and transported to the workstation of other equipment for processing. This results in poor processing continuity. The handling and multiple loading and unloading greatly increase the processing time. In addition, it lacks a good fixing structure. During the processing, the piston rod is prone to chattering, displacement, or even bending deformation, which affects the processing accuracy and overall quality. Summary of the Invention

[0006] The purpose of this invention is to address the shortcomings of existing technologies by providing a fully automatic, efficient, and stable through-feed piston rod processing device. This device includes a feeding mechanism, a processing mechanism located at the tail end of the feeding mechanism, and a unloading mechanism located at the tail end of the processing mechanism. The processing mechanism includes a lathe body and a positioning component and an auxiliary component located within the lathe body. A first drive component, a limiting component, and a second drive component are arranged between the positioning component and the auxiliary component. The first drive component includes a fixed ring fixedly mounted on the lathe body and several servo motors a slidably mounted within the fixed ring. The limiting component includes a tool holder rotatably mounted on the fixed ring, several lead screws rotatably mounted on the tool holder, and a hollow column fixedly connected to the top of the lead screws. A cutting head is fixedly connected to the front end of the hollow column, and a support plate is slidably mounted within the hollow column. This invention solves the problems of poor piston rod stability, limited functionality, poor processing continuity, and low processing efficiency in existing technologies.

[0007] The technical solution of the present invention is as follows:

[0008] A fully automatic through-feed piston rod high-efficiency and stable machining device includes a feeding mechanism, a machining mechanism located at the tail end of the feeding mechanism, and a unloading mechanism located at the tail end of the machining mechanism. The machining mechanism includes a lathe body and a positioning component and an auxiliary component located within the lathe body. A first drive component, a limiting component, and a second drive component are disposed between the positioning component and the auxiliary component. The first drive component includes a fixed ring fixedly mounted on the lathe body and a plurality of servo motors a slidably mounted within the fixed ring. The limiting component includes a tool holder rotatably mounted on the fixed ring and a rotatably mounted... The lathe has several lead screws on a tool holder and a hollow column fixedly connected to the top of the lead screws. A cutting head is fixedly connected to the front end of the hollow column, and an expansion plate is slidably arranged inside the hollow column. The feeding mechanism is used to transport the piston rod into the lathe body. The positioning component is used to pre-position both ends of the piston rod. The servo motor A drives the lead screw to drill a hole in the surface of the piston rod through the cutting head, and the expansion plate supports the inner wall of the hole. The second drive component drives the piston rod supported by the expansion plate to rotate and process the piston rod through the processing mechanism. The unloading mechanism is used to collect the processed piston rod.

[0009] As a preferred embodiment, the positioning assembly includes a base a and a base b fixedly disposed at both ends of the lathe body. Guide rails a and b are respectively disposed on base a and base b. A mounting seat a is slidably disposed on guide rail a. A hydraulic cylinder a is fixedly connected to the top of mounting seat a. A centering sleeve a is disposed at the front end of hydraulic cylinder a. A cylinder a is disposed on the top of base a, and the front end of cylinder a is fixedly connected to mounting seat a. A mounting seat b is slidably disposed on guide rail b. A hydraulic cylinder b is fixedly connected to the top of mounting seat b. A centering sleeve b is disposed at the front end of hydraulic cylinder b. A cylinder b is disposed on the top of base b, and the front end of cylinder b is fixedly connected to mounting seat b.

[0010] As a preferred embodiment, a support base is fixedly connected to the bottom of the fixed ring, an annular groove is formed inside the fixed ring, several openings are formed on the fixed ring corresponding to the circumference of the servo motor a, several sliding grooves are also formed inside the fixed ring, several through holes a are formed on the front of the fixed ring corresponding to the sliding grooves, and limit grooves a and b are respectively provided on the front and back of the fixed ring. The servo motor b is fixedly mounted on the left side of the support base, and a gear a is fixedly connected to the front end of the servo motor b.

[0011] As a preferred embodiment, the servo motor a has an arc-shaped block fixedly connected to its bottom, and sliders that are slidably disposed in the grooves are fixedly connected to both sides of the arc-shaped block. A support rod is fixedly connected to one side of the slider, and a limit block a is fixedly connected to the end of the support rod. A guide ring is rotatably disposed on the limit groove a, and a guide groove for cooperating with the support rod is opened on the guide ring. A gear ring a that meshes with the gear a is fixedly connected to one side of the guide ring.

[0012] As a preferred embodiment, the tool holder has several threaded holes corresponding to the circumference of the lead screw. A through hole b is formed inside the lead screw, and a connecting groove is formed below the through hole b. A window is formed on the hollow column. A hollow rod is slidably disposed within the through hole b. A rectangular block is fixedly connected to the top of the hollow rod. Arc-shaped grooves are formed on both sides of the rectangular block. A limit block b is slidably disposed inside the hollow rod. A push rod is fixedly connected to the bottom of the limit block b. A spring a is wound around the push rod. A support plate is fixedly disposed inside the hollow column. A rectangular hole is formed on the support plate. A sliding rod is fixedly connected to the inner side of the expansion plate and slidably disposed within the rectangular hole. A spherical protrusion that mates with the arc-shaped groove is fixedly connected to the end of the sliding rod. A spring b is wound around the sliding rod.

[0013] As a preferred embodiment, the second drive assembly includes a servo motor c fixedly mounted on the right side of the support base and a rotating ring rotatably mounted in the limiting groove b. A gear b is fixedly connected to the front end of the servo motor c, a connecting rod a is fixedly connected to one side of the rotating ring, and a gear ring b that meshes with the gear b is fixedly connected to the other end of the connecting rod a. A connecting rod b is fixedly connected to the inner ring of the gear ring b, and the gear ring b is fixedly connected to the tool holder through the connecting rod b.

[0014] As a preferred embodiment, the auxiliary component includes a drive seat a disposed on the right side of the hydraulic cylinder a, a hydraulic rod a movably disposed within the drive seat a, a fixed rod fixedly connected to the front end of the hydraulic rod a, a driven wheel rotatably disposed on the fixed rod, a circular hole opened on the drive seat a, a rotating seat fixedly disposed on one side of the drive seat a, and an auxiliary roller rotatably disposed on the rotating seat.

[0015] As a preferred embodiment, a drilling assembly is also provided on one side of the fixed assembly. The drilling assembly includes a sliding seat fixedly mounted on the lathe body and a linear guide rail slidably mounted on the sliding seat. A support plate is fixedly mounted on the top of the linear guide rail, and a guide rail c is fixedly mounted on the top of the support plate. A mounting seat c is slidably mounted on the guide rail c. A cutter head is rotatably mounted on the top of the mounting seat c. A cutting tool is mounted on the cutter head. A servo motor d and a nozzle are mounted on the top of the cutter head. A cylinder c is also provided on the support plate and is fixedly connected to the mounting seat c. A drive seat b is fixedly mounted on one end of the support plate. A hydraulic rod b is movably mounted inside the drive seat b, and a drill bit is mounted at the front end of the hydraulic rod b.

[0016] As a preferred embodiment, the feeding mechanism includes a conveyor fixedly installed on the left side of the lathe body, a feeding frame on one side of the conveyor, a servo motor e and a transmission belt driven by the servo motor e on the conveyor, and a material placement frame and a cylinder d on the top of the conveyor.

[0017] As another preferred embodiment, the unloading mechanism includes a stacking platform fixedly installed on the right side of the lathe body, and the stacking platform is provided with a receiving frame and an inclined guide plate.

[0018] The beneficial effects of this invention are as follows:

[0019] 1. This invention includes a positioning assembly. Hydraulic cylinders a and b, located at both ends of the lathe body, are used in the positioning assembly. After the loading mechanism pushes the piston rod into the lathe body, hydraulic cylinders a and b respectively drive centering sleeves a and b into the two ends of the piston rod's inner hole to center the piston rod. This allows for quick and timely pre-positioning of the piston rod entering the machining station, facilitating precise and stable clamping of the piston rod by the expansion plate in the subsequent limiting assembly in conjunction with the auxiliary assembly. Furthermore, centering sleeves a and b are concentric with the three lead screws in the limiting assembly, and the three lead screws are also concentric with the piston rod. Therefore, tedious manual centering steps are unnecessary, saving machining time and ensuring machining quality.

[0020] 2. The limiting component in this invention has several lead screws that move inward synchronously under the drive of the first drive component to drill holes on the surface of the piston rod. After the holes are drilled, the expansion block inside the hollow column moves outward under the push of the rectangular block to expand the inner wall of the hole, thereby limiting and fixing the piston rod. This prevents the piston rod from shifting or shaking during the processing and further ensures the concentricity of the piston rod as a whole, resulting in high processing accuracy and improved processing quality.

[0021] 3. The present invention is provided with an auxiliary component, which drives the driven wheel to make contact with and limit the outer ring of the piston rod through the hydraulic rod a. This not only limits the end of the piston rod, but also ensures the stability of the piston rod and prevents the piston rod from chattering during the rotation of the limiting component and the piston rod by the second drive component.

[0022] 4. This invention also includes a drilling assembly, which enables the piston rod to be turned and drilled. The servo motor b in the drilling assembly drives the cutter head to rotate in the circumferential direction, and the linear guide rail drives the cutter to move left and right, allowing the cutter to cut different parts of the piston rod, such as the outer surface, cross-section, and inner hole. The turned piston rod does not need to be removed and transported to another drilling station for processing, resulting in strong processing continuity, saving equipment floor space and production costs, and greatly increasing the flexibility and versatility of the cutting assembly. Multiple turning processes can be performed with one assembly, effectively improving processing efficiency.

[0023] 5. The present invention is provided with a feeding mechanism and a unloading mechanism. The feeding mechanism can automatically feed materials through a conveyor belt and transport the piston rod to the processing station through the cylinder d. After processing, the piston rod can be pushed by the piston rod of the subsequent feeding mechanism to the receiving rack of the unloading mechanism and stacked on the stacking platform for easy subsequent centralized transfer. It has a high degree of automation and effectively saves labor.

[0024] In summary, this invention has the advantages of more stable and firm clamping and limiting of the piston rod, effectively ensuring the concentricity of the piston rod as a whole, good processing continuity, effectively improving processing efficiency and quality, good linkage effect between components, and ingenious structure, making it suitable for the field of piston rod processing equipment technology. Attached Figure Description

[0025] The invention will now be further described with reference to the accompanying drawings:

[0026] Figure 1 This is a schematic diagram of the structure of the fully automatic through-type piston rod high-efficiency and stable processing device;

[0027] Figure 2 A schematic diagram showing the positional structure of the feeding mechanism and the unloading mechanism;

[0028] Figure 3 This is a schematic diagram of the position and structure of the machining mechanism;

[0029] Figure 4 for Figure 3 Enlarged schematic diagram of the structure at point A;

[0030] Figure 5 for Figure 4 Enlarged schematic diagram of the structure at point B;

[0031] Figure 6 This is a schematic diagram showing the location and structure of the second drive component;

[0032] Figure 7 This is a schematic diagram of the structure of the fixed ring and the rotating ring;

[0033] Figure 8 This is a partial structural diagram of the first drive component;

[0034] Figure 9 This is a cross-sectional view of the fixing ring.

[0035] Figure 10 This is a schematic diagram showing the state when servo motor a is not connected to the lead screw.

[0036] Figure 11 for Figure 10 Enlarged schematic diagram of the structure at point C;

[0037] Figure 12 This is a schematic diagram showing the state when servo motor a is connected to the lead screw;

[0038] Figure 13 This is a schematic diagram of the limit component.

[0039] Figure 14 A schematic diagram showing the state when the hole is expanded by the protruding window of the expansion plate.

[0040] In the diagram: 1. Loading mechanism; 2. Machining mechanism; 3. Unloading mechanism; 4. Piston rod; 11. Conveyor; 12. Loading rack; 13. Servo motor; 14. Conveyor belt; 15. Material rack; 16. Cylinder; 21. Lathe body; 22. Positioning assembly; 23. Auxiliary assembly; 24. First drive assembly; 25. Limiting assembly; 26. Second drive assembly; 27. Drilling assembly; 220. Base; 221. Base; 222. Guide rail; 223. Guide rail; 224. Mounting base; 225. Hydraulic cylinder; 226. Centering sleeve; 227. Cylinder. The following components are included: mounting base b228, hydraulic cylinder b229, centering sleeve rod b2210, air cylinder b2211, drive base a230, hydraulic rod a231, fixed rod 232, driven wheel 233, round hole 234, rotating seat 235, auxiliary roller 236, fixed ring 240, servo motor a241, support base 242, annular groove 243, opening 244, sliding groove 245, through hole a246, limiting groove a247, limiting groove b248, servo motor b249, gear a2410, and arc block 2411. Slider 2412, Support rod 2413, Limiting block a2414, Guide ring 2415, Guide groove 2416, Gear ring a2417, Tool holder 250, Lead screw 251, Hollow column 252, Tool head 253, Expanding plate 254, Threaded hole 255, Through hole b256, Butt groove 257, Window 258, Hollow rod 259, Rectangular block 2510, Arc groove 2511, Limiting block b2512, Push rod 2513, Spring a2514, Support plate 2515, Rectangular hole 2516, Slide rod 2517 2518 spherical protrusion, b2519 spring, c260 servo motor, 261 rotating ring, b262 gear, a263 connecting rod, b264 gear ring, b265 connecting rod, 270 sliding seat, 271 linear guide rail, 272 support plate, c273 guide rail, c274 mounting base, 275 cutter head, 276 cutter, d277 servo motor, 278 nozzle, c279 cylinder, b2710 drive seat, b2711 hydraulic rod, 2712 drill bit, 31 stacking platform, 32 receiving rack, 33 guide plate. Detailed Implementation

[0041] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0042] Example 1

[0043] like Figures 1 to 14As shown, a fully automatic through-type piston rod high-efficiency and stable machining device includes a feeding mechanism 1, a machining mechanism 2 disposed at the tail end of the feeding mechanism 1, and a unloading mechanism 3 disposed at the tail end of the machining mechanism 2. The machining mechanism 2 includes a lathe body 21 and a positioning component 22 and an auxiliary component 23 disposed within the lathe body 21. A first drive component 24, a limiting component 25, and a second drive component 26 are disposed between the positioning component 22 and the auxiliary component 23. The first drive component 24 includes a fixed ring 240 fixedly disposed on the lathe body 21 and a plurality of servo motors a241 slidably disposed within the fixed ring 240. The limiting component 25 includes a tool holder 250 rotatably disposed on the fixed ring 240 and a rotatably disposed within the fixed ring 240. The tool holder 250 has several lead screws 251 and a hollow column 252 fixedly connected to the top of the lead screws 251. A cutting head 253 is fixedly connected to the front end of the hollow column 252. An expansion plate 254 is slidably arranged inside the hollow column 252. The feeding mechanism 1 is used to transport the piston rod 4 into the lathe body 21. The positioning component 22 is used to pre-position the two ends of the piston rod 4. The servo motor a241 drives the lead screw 251 to drill holes in the surface of the piston rod 4 through the cutting head 253 and supports the inner wall of the hole through the expansion plate 254. The second drive component 23 drives the piston rod 4 supported by the expansion plate 254 to rotate and process the piston rod 4 through the processing mechanism 2. The unloading mechanism 3 is used to collect the processed piston rod 4. After the piston rod 4 enters the lathe body 21, it is first positioned by the cooperation of centering sleeve a226 and centering sleeve b2210. Then, the first drive assembly 24 drives several lead screws 251 to move inward synchronously to drill holes in the surface of the piston rod 4. Next, the expansion plate 254 expands the inner wall of the hole to limit and fix the piston rod 4, so that the piston rod 4 is continuously and stably fixed during the processing. This solves the problems of poor stability, single function, poor processing continuity and low processing efficiency in the existing technology.

[0044] like Figure 2As shown, the positioning component 22 includes a base a220 and a base b221 fixedly mounted at both ends of the lathe body 21. Guide rails a222 and b223 are respectively mounted on base a220 and base b221. A mounting seat a224 is slidably mounted on guide rail a222. A hydraulic cylinder a225 is fixedly connected to the top of mounting seat a224. A centering sleeve a226 is provided at the front end of hydraulic cylinder a225. A cylinder a227 is provided at the top of base a225, and the front end of cylinder a227 is fixedly connected to mounting seat a224. A mounting seat b228 is slidably mounted on guide rail b223. ​​A hydraulic cylinder b229 is fixedly connected to the top of mounting seat b228. A centering sleeve b2210 is provided at the front end of hydraulic cylinder b229. A cylinder b2211 is provided at the top of base b228, and the front end of cylinder b2211 is fixedly connected to mounting seat b228. Hydraulic cylinders a225 and b229, located at both ends of the lathe body 21, push the piston rod 4 into the lathe body 21 via the loading mechanism 1. The hydraulic cylinders a225 and b229 then drive the centering sleeves a226 and b2210 into the inner holes of the piston rod 4 to center it. This allows for quick and timely pre-positioning of the piston rod 4 as it enters the machining station, facilitating precise and stable clamping of the piston rod 4 by the expansion plate 254 in the subsequent limiting assembly 25 in conjunction with the auxiliary assembly 23. Furthermore, the centering sleeves a226 and b2210 are concentric with the three lead screws 251 in the limiting assembly 25, and the three lead screws 251 are also concentric with the piston rod 4. Therefore, tedious manual centering steps are unnecessary, saving machining time and ensuring machining quality.

[0045] like Figure 6 , Figure 8 , Figure 9 and Figure 11As shown, a support base 242 is fixedly connected to the bottom of the fixed ring 240. An annular groove 243 is opened inside the fixed ring 240. Several openings 244 are opened on the circumference of the fixed ring 240 corresponding to the servo motor a241. Several sliding grooves 245 are also opened inside the fixed ring 240. Several through holes a246 are opened on the front of the fixed ring 240 corresponding to the sliding grooves 245. Limiting grooves a247 and b248 are respectively provided on the front and back of the fixed ring 240. A servo motor b249 is fixedly installed on the left side of the support base 242. A gear a2410 is fixedly connected to the front end of the servo motor b249. The arc-shaped block 2411 is slidably mounted in the annular groove 243 via the slider 2412; the opening 244 allows the arc-shaped block 2411 to move out of the annular groove 243, driving the servo motor a241 to connect with the docking groove 257 at the bottom of the lead screw 251; the through hole a246 allows the support rod 2413 on one side of the slider 2412 to extend out of the through hole a246 and cooperate with the guide groove 2416 on the guide ring 2415. When the servo motor b249 drives the guide ring 2415 to rotate counterclockwise, the guide ring 2415 drives the slider 2412 and the arc-shaped block 2411 to move a certain distance towards the center of the fixed ring 240, thereby realizing the connection between the servo motor a241 and the lead screw 251. The docking mechanism allows the guide ring 2415 to rotate clockwise via the servo motor b249, which in turn drives the slider 2412 and the arc block 2411 to reset. The front end of the servo motor a241 then exits the docking groove 257, disengaging from the lead screw 251. This disengagement of the servo motor a241 from the lead screw 251 prevents winding interference when the servo motor c260 drives the tool holder 250 to rotate. The limiting groove a247 limits the guide ring 2415, ensuring its stable rotation within the groove. The limiting groove b248 limits the rotating ring 261, ensuring its stable rotation within the groove.

[0046] like Figure 8 , Figure 10 , Figure 11 and Figure 12As shown, an arc-shaped block 2411 is fixedly connected to the bottom of the servo motor a241. A slider 2412 is fixedly connected to both sides of the arc-shaped block 2411 and is slidably disposed in the slide groove 245. A support rod 2413 is fixedly connected to one side of the slider 2412. A limit block a2414 is fixedly connected to the end of the support rod 2413. A guide ring 2415 is rotatably disposed on the limit groove a247. A guide groove 2416 for cooperating with the support rod 2413 is opened on the guide ring 2415. A gear ring a2417 that meshes with the gear a2410 is fixedly connected to one side of the guide ring 2415. The slider 2412 is slidably disposed in the slide groove 245, so that the guide ring 2415 can drive the arc block 2411 to move up and down through the cooperation of the guide groove 2416 and the support rod 2413; the limit block a2414 prevents the support rod 2413 from disengaging from the guide groove 2416; the gear ring a2417 meshes with the gear a2410 at the front end of the servo motor b249, so that the servo motor b249 can drive the guide ring 2415 to rotate.

[0047] like Figure 7 , Figure 12 , Figure 13 and Figure 14As shown, the tool holder 250 has several threaded holes 255 corresponding to the circumference of the lead screw 251. A through hole b256 is provided inside the lead screw 251, and a connecting groove 257 is provided below the through hole b256. A window 258 is provided on the hollow column 252. A hollow rod 259 is slidably disposed within the through hole b256. A rectangular block 2510 is fixedly connected to the top of the hollow rod 259. Arc-shaped grooves 2511 are provided on both sides of the rectangular block 2510. A limit block b2512 is slidably disposed inside the hollow rod 259. The bottom of the limiting block b2512 is fixedly connected to a push rod 2513, and a spring a2514 is wound around the push rod 2513. A support plate 2515 is fixedly installed inside the hollow column 252. A rectangular hole 2516 is opened on the support plate 2515. A slide rod 2517 is fixedly connected to the inner side of the expansion plate 254 and is slidably installed in the rectangular hole 2516. A spherical protrusion 2518 that cooperates with the arc groove 2511 is fixedly connected to the end of the slide rod 2517. A spring b2519 is wound around the slide rod 2517.The docking groove 257 is hexagonal in shape, and the shaft of the servo motor a241 is also hexagonal. This allows the servo motor a241 to stably drive the lead screw 251 to rotate after its shaft enters the docking groove 257 and connects with the lead screw 251. Multiple threaded holes 255 and lead screws 251 can be provided; in this application, three threaded holes 255 and lead screws 251 are used because the triangular structure is stable and can provide stable positioning and fixing of the piston rod 4 while saving costs. Users can adjust the number of threaded holes 255 and lead screws 251 according to their needs. When the lead screw 251 rotates and moves, the arc-shaped block 2411 and the servo motor a241... With the position unchanged, when the lead screw 251 moves into place, the shaft at the front end of the servo motor a241 is still partially inside the docking groove 257. Only when the servo motor a241 moves backward and resets with the arc block 2411 does the motor shaft completely disengage from the docking groove 257. The window 258 on the hollow column 252 allows the expansion plate 254, which is slidably mounted in the rectangular hole 2516 via the slide rod 2517, to protrude from the window 258 and expand the inner wall of the hole. The size of the expansion plate 254 matches the window 258. When the expansion plate 254 is not protruding from the window 258, it fits snugly against the window 258, preventing debris generated by the drill bit 253 during drilling from entering the hollow column 252 and damaging the parts. Damage and impact on the fit of various components; when the servo motor a241 is connected to the lead screw 251, the shaft of the servo motor a241 pushes the push rod 2513 upward, causing it to move upward. The upward movement of the push rod 2513 drives the hollow rod 259 upward, causing the spherical protrusion 2518 to disengage from the arc groove 2511 and contact the outer wall of the hollow rod 259. The compressed spring b2519 is released, causing the slide rod 2517 and the expansion plate 254 to move backward. After the expansion plate 254 moves backward, it fits against the window 258, avoiding interference when drilling the piston rod 4 through the cutter head 253 on the lead screw 251. When the servo motor a241 resets and disconnects from the lead screw 251, the push rod 2513 resets under the action of the spring a2514. As the hollow rod 259 moves downward, the spherical protrusion 2518 re-enters the arc groove 2511 after the hollow rod 259 returns to its original position. The sliding rod 2517 moves forward under the push of the rectangular block 2510, causing the expansion plate 254 to protrude from the window 258. Several lead screws 251 in the limiting assembly 25 move inward synchronously under the drive of the first driving assembly 24 to drill holes on the surface of the piston rod 4. After the holes are drilled, the expansion block 254 in the hollow column 252 moves outward under the push of the rectangular block 2510 to expand the inner wall of the hole, thereby limiting and fixing the piston rod 4. This prevents the piston rod 4 from shifting or shaking during the processing and further ensures the concentricity of the piston rod 4 as a whole, resulting in high processing accuracy and improved processing quality.

[0048] like Figure 6 and Figure 7 As shown, the second drive assembly 26 includes a servo motor c260 fixedly mounted on the right side of the support base 242 and a rotating ring 261 rotatably mounted in the limiting groove b248. A gear b262 is fixedly connected to the front end of the servo motor c260. A connecting rod a263 is fixedly connected to one side of the rotating ring 261, and a gear ring b264 meshing with the gear b262 is fixedly connected to the other end of the connecting rod a263. A connecting rod b265 is fixedly connected to the inner ring of the gear ring b264, and the gear ring b264 is fixedly connected to the tool holder 250 via the connecting rod b265. The meshing of the gear b262 and the gear ring b264 enables the servo motor c260 to drive the rotating ring 261 to rotate. Since the rotating ring 261 is fixedly connected to the tool holder 250 via the connecting rod a263, when the servo motor c260 drives the rotating ring 261 to rotate, it can drive the tool holder 250 to rotate synchronously.

[0049] like Figure 3 and Figure 4 As shown, the auxiliary component 23 includes a drive seat a230 located on the right side of the hydraulic cylinder a220. A hydraulic rod a231 is movably disposed within the drive seat a230. A fixed rod 232 is fixedly connected to the front end of the hydraulic rod a231. A driven wheel 233 is rotatably disposed on the fixed rod 232. A circular hole 234 is provided on the drive seat a230. By driving the driven wheel 233 through the hydraulic rod a231, the piston rod 4 outer ring is contacted and limited. This not only limits the end of the piston rod 4, but also ensures the stability of the piston rod 4 during the rotation of the limiting component 25 and the piston rod 4 by the second drive component 26, preventing the piston rod 4 from chattering or shifting, which would affect the processing quality.

[0050] like Figure 3 and Figure 5As shown, a drilling assembly 27 is also provided on one side of the fixed assembly 25. The drilling assembly 27 includes a sliding seat 270 fixedly mounted on the lathe body 21 and a linear guide rail 271 slidably mounted on the sliding seat 270. A support plate 272 is fixedly mounted on the top of the linear guide rail 271, and a guide rail c273 is fixedly mounted on the top of the support plate 272. A mounting seat c274 is slidably mounted on the guide rail c273. A cutter head 275 is rotatably mounted on the top of the mounting seat c274. A cutting tool 276 is mounted on the cutter head 275. A servo motor d277 and a nozzle 278 are mounted on the top of the cutter head 275. A cylinder c279 is also provided on the support plate 272. The cylinder c279 is fixedly connected to the mounting seat c274. A drive seat b2710 is fixedly mounted on one end of the support plate 272. A hydraulic rod b2711 is movably mounted inside the drive seat b2710. A drill bit 2712 is mounted at the front end of the hydraulic rod b2711. The piston rod 4 can be turned and drilled using the drilling assembly 27. The servo motor d277 in the drilling assembly 27 can drive the cutter head 275 to rotate in the circumferential direction, and the linear guide rail 271 can drive the cutter 276 to move left and right, so that the cutter 276 can cut different parts of the piston rod 4, such as the outer surface, cross-section and inner hole. The turned piston rod 4 does not need to be removed and transported to another drilling station for processing. The processing is highly continuous, saving equipment floor space and production costs, and greatly increasing the flexibility and versatility of the cutting assembly. Multiple turning processes can be performed with one assembly, effectively improving processing efficiency.

[0051] like Figure 2 As shown, the feeding mechanism 1 includes a conveyor 11 fixedly mounted on the left side of the lathe body 21. A feeding rack 12 is provided on one side of the conveyor 11. A servo motor e13 and a transmission belt 14 driven by the servo motor e13 are mounted on the conveyor 11. A material placement rack 15 and a cylinder d16 are provided on the top of the conveyor 11. The feeding mechanism 1 can automatically feed materials via the transmission belt 14 and transport the piston rod 4 to the processing station via the cylinder d16. After processing, the piston rod 4 can be pushed by the piston rod 4 of the subsequent feeding mechanism 3 onto the receiving rack 32 of the unloading mechanism 3 and stacked on the stacking platform 31 for easy subsequent centralized transfer. It has a high degree of automation and effectively saves labor.

[0052] like Figure 2 The unloading mechanism 3 includes a stacking platform 31 fixedly mounted on the right side of the lathe body 21. The stacking platform 31 is equipped with a receiving frame 32 and an inclined guide plate 33. After processing, the piston rod 4 can be pushed onto the receiving frame 32 of the unloading mechanism 3 by the piston rod to be processed, which is then pushed and transmitted by the subsequent cylinder d16. Then, it rolls down onto the stacking platform 31 through the guide plate 33 and is stacked in a concentrated manner, which facilitates subsequent centralized transfer. The automation level is high and labor is effectively saved. The receiving frame 32 and the guide plate 33 are both inclined outward to facilitate the automatic falling of the piston rod 4.

[0053] Example 2

[0054] like Figure 3 As shown, components that are the same as or corresponding to those in Embodiment 1 are referred to by the same reference numerals as those in Embodiment 1. For simplicity, only the differences from Embodiment 1 will be described below. The difference between Embodiment 2 and Embodiment 1 is that a rotating seat 235 is fixedly provided on one side of the drive seat a230, and an auxiliary roller 236 is rotatably provided on the rotating seat 235. The auxiliary roller 236 can provide auxiliary support for the bottom of the piston rod 4, and can also provide support and guidance when the cylinder d16 pushes the piston rod 4 to be processed and transmits the processed piston rod 4 to the unloading mechanism 3, so that the displacement of the piston rod 4 is smoother; multiple auxiliary rollers 236 can be provided.

[0055] The work process is as follows:

[0056] The piston rods 4 to be processed are stacked on the loading rack 12. During processing, the servo motor e13 drives the conveyor belt 14 to transfer the piston rods 4 to the placement rack 15. Then, the cylinder b15 transfers the piston rods 4 to the processing station inside the body body 21. Next, the cylinders a227 and b2211 drive the mounting seats a224 and b228 to move downwards along the guide rails a222 and b223, respectively. The centering sleeves a226 and b2210 limit and center the two ends of the inner hole of the piston rod 4. Then, the hydraulic rod a231 extends and fits against the outer wall of the piston rod 4 through the driven wheel 233 to limit and clamp the piston rod 4. Then, the servo motor b249 drives the guide ring 2415 to rotate counterclockwise, which guides the piston rod 4 to move downwards. Ring 2415 drives slider 2412 and arc block 2411 to move a certain distance toward the center of fixed ring 240, so that the rotating shaft at the front end of servo motor a241 enters the docking groove 257 at the bottom of lead screw 251 to achieve docking between servo motor a241 and lead screw 251. When servo motor a241 docks with lead screw 251, the rotating shaft of servo motor a241 pushes the push rod 2513 upward, causing the push rod 2513 to move upward, causing hollow rod 259 to move upward, so that spherical protrusion 2518 disengages from arc groove 2511 and contacts the outer wall of hollow rod 259. The compressed spring b2519 is released, causing slide rod 2517 and expansion plate 254 to move backward. Then servo motor a241 drives lead screw 251 to rotate, causing lead screw 251 to move toward tool holder 250. The directional displacement of the center of the circle drills a hole in the surface of the piston rod 4 through the cutter head 253. After drilling is completed, the servo motor a241 pauses. Then, when the servo motor b249 drives the guide ring 2415 to rotate clockwise, the guide ring 2415 drives the slider 2412 and the arc block 2411 to reset. After the servo motor a241 resets and disconnects from the lead screw 251, the push rod 2513 resets under the action of the spring a2514, which in turn drives the hollow rod 259 to move down. After the hollow rod 259 moves down and resets, the spherical protrusion 2518 re-enters the arc groove 2511. The slide rod 2517 moves forward under the push of the rectangular block 2510, causing the expansion plate 254 to protrude from the window 258 to expand the hole wall and achieve the limiting and fixing of the piston rod 4. Then, the linear guide rail 271... The cutter 276 mounted on the support plate 272 moves to the left, and the servo motor d277 drives the cutter head 275 to rotate 90° clockwise. Then, the servo motor c260 drives the rotating ring 261, the tool holder 250, and the piston rod 4, which is fixed under the limit of the expansion plate 254, to rotate. The cutter 276 performs turning machining on the piston rod 4. After the turning machining is completed, the servo motor d277 drives the cutter head 245 to rotate 90° counterclockwise to reset. Then, the drive seat b2710 drives the hydraulic rod b2711 to extend and drill through the drill bit 2712 to drill a hole in the piston rod 4. After the drilling is completed, the servo motor a241 reconnects with the lead screw 251, causing the lead screw 251 to rotate in the opposite direction to reset and exit the hole, releasing the limit fixation on the piston rod 4.Then, the piston rod 4 to be processed on the material rack 15 is transferred forward by the cylinder d16, while the processed piston rod 4 is pushed onto the stacking platform 31. The processing process is repeated in this cycle.

[0057] In the description of this invention, it should be understood that the terms "front and back", "left and right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention.

[0058] Of course, those skilled in the art should understand that the term "a" should be understood as "at least one" or "one or more". That is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple. The term "a" should not be understood as a limitation on the quantity.

[0059] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art under the technical guidance of the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A fully automatic through-feed piston rod high-efficiency and stable processing device, comprising a feeding mechanism (1), a processing mechanism (2) disposed at the tail end of the feeding mechanism (1), and a unloading mechanism (3) disposed at the tail end of the processing mechanism (2), characterized in that, The machining mechanism (2) includes a lathe body (21) and a positioning component (22) and an auxiliary component (23) disposed within the lathe body (21). A first drive component (24), a limiting component (25), and a second drive component (26) are disposed between the positioning component (22) and the auxiliary component (23). The first drive component (24) includes a fixed ring (240) fixedly disposed on the lathe body (21) and a plurality of servo motors a (241) slidably disposed within the fixed ring (240). The limiting component (25) includes a tool post (250) rotatably disposed on the fixed ring (240), a plurality of lead screws (251) rotatably disposed on the tool post (250), and a hollow core fixedly connected to the top of the lead screws (251). The hollow column (252) has a cutter head (253) fixedly connected to its front end. An expansion plate (254) is slidably arranged inside the hollow column (252). The feeding mechanism (1) is used to transport the piston rod (4) into the lathe body (21). The positioning component (22) is used to pre-position the two ends of the piston rod (4). The servo motor a (241) drives the lead screw (251) to drill holes in the surface of the piston rod (4) and supports the inner wall of the hole through the expansion plate (254). The second drive component (23) drives the piston rod (4) supported by the expansion plate (254) to rotate and process the piston rod (4) through the processing mechanism (2). The unloading mechanism (3) is used to collect the processed piston rod (4) in a concentrated manner.

2. The fully automatic through-type piston rod high-efficiency and stable processing device according to claim 1, characterized in that, The positioning component (22) includes a base a (220) and a base b (221) fixedly mounted at both ends of the lathe body (21). Guide rails a (222) and b (223) are respectively mounted on the base a (220) and base b (221). A mounting seat a (224) is slidably mounted on the guide rail a (222). A hydraulic cylinder a (225) is fixedly connected to the top of the mounting seat a (224). A centering sleeve a (226) is provided at the front end of the hydraulic cylinder a (225). The base a (220) and b (221) are respectively mounted on the guide rail a (220) and base b (221). 25) A cylinder a (227) is provided at the top. The front end of the cylinder a (227) is fixedly connected to the mounting seat a (224). A mounting seat b (228) is slidably provided on the guide rail b (223). A hydraulic cylinder b (229) is fixedly connected to the top of the mounting seat b (228). A centering sleeve rod b (2210) is provided at the front end of the hydraulic cylinder b (229). A cylinder b (2211) is provided at the top of the base b (228). The front end of the cylinder b (2211) is fixedly connected to the mounting seat b (228).

3. The fully automatic through-type piston rod high-efficiency and stable processing device according to claim 2, characterized in that, The bottom of the fixed ring (240) is fixedly connected to a support base (242). The fixed ring (240) has an annular groove (243) inside. The fixed ring (240) has several openings (244) on its circumference corresponding to the servo motor a (241). The fixed ring (240) also has several sliding grooves (245) inside. The front of the fixed ring (240) has several through holes a (246) corresponding to the sliding grooves (245). The front and back of the fixed ring (240) are respectively provided with a limiting groove a (247) and a limiting groove b (248). The left side of the support base (242) is fixedly provided with a servo motor b (249). The front end of the servo motor b (249) is fixedly connected to a gear a (2410).

4. The fully automatic through-type piston rod high-efficiency and stable processing device according to claim 3, characterized in that, The servo motor a (241) is fixedly connected to an arc-shaped block (2411) at its bottom. The arc-shaped block (2411) is fixedly connected to two sides of a slider (2412) that is slidably disposed in a slide groove (245). A support rod (2413) is fixedly connected to one side of the slider (2412). A limit block a (2414) is fixedly connected to the end of the support rod (2413). A guide ring (2415) is rotatably disposed on the limit groove a (247). A guide groove (2416) for cooperating with the support rod (2413) is opened on the guide ring (2415). A gear ring a (2417) that meshes with the gear a (2410) is fixedly connected to one side of the guide ring (2415).

5. The fully automatic through-type piston rod high-efficiency and stable processing device according to claim 4, characterized in that, The tool holder (250) has several threaded holes (255) around the circumference of the lead screw (251). The lead screw (251) has a through hole b (256) inside. A connecting groove (257) is opened below the through hole b (256) and communicates with it. The hollow column (252) has a window (258). A hollow rod (259) is slidably arranged inside the through hole b (256). A rectangular block (2510) is fixedly connected to the top of the hollow rod (259). Arc grooves (2511) are opened on both sides of the rectangular block (2510). A limit block b (2512) is slidably arranged inside the hollow rod (259). The bottom of the limiting block b (2512) is fixedly connected to a push rod (2513), and a spring a (2514) is wound around the push rod (2513). A support plate (2515) is fixedly installed inside the hollow column (252). A rectangular hole (2516) is opened on the support plate (2515). A sliding rod (2517) is fixedly connected to the inner side of the expansion plate (254) and is slidably installed in the rectangular hole (2516). A spherical protrusion (2518) that cooperates with the arc groove (2511) is fixedly connected to the end of the sliding rod (2517). A spring b (2519) is wound around the sliding rod (2517).

6. The fully automatic through-type piston rod high-efficiency and stable processing device according to claim 5, characterized in that, The second drive assembly (26) includes a servo motor c (260) fixedly mounted on the right side of the support base (242) and a rotating ring (261) rotatably mounted in the limiting groove b (248). The front end of the servo motor c (260) is fixedly connected to a gear b (262). A connecting rod a (263) is fixedly connected to one side of the rotating ring (261). The other end of the connecting rod a (263) is fixedly connected to a gear ring b (264) that meshes with the gear b (262). A connecting rod b (265) is fixedly connected to the inner ring of the gear ring b (264). The gear ring b (264) is fixedly connected to the tool holder (250) through the connecting rod b (265).

7. The fully automatic through-type piston rod high-efficiency and stable processing device according to claim 6, characterized in that, The auxiliary component (23) includes a drive seat a (230) disposed on the right side of the hydraulic cylinder a (220), a hydraulic rod a (231) movably disposed inside the drive seat a (230), a fixed rod (232) fixedly connected to the front end of the hydraulic rod a (231), a driven wheel (233) rotatably disposed on the fixed rod (232), a circular hole (234) is opened on the drive seat a (230), a rotating seat (235) is fixedly disposed on one side of the drive seat a (230), and an auxiliary roller (236) rotatably disposed on the rotating seat (235).

8. The fully automatic through-type piston rod high-efficiency and stable processing device according to claim 7, characterized in that, A drilling assembly (27) is also provided on one side of the fixed assembly (25). The drilling assembly (27) includes a sliding seat (270) fixedly mounted on the lathe body (21) and a linear guide (271) slidably mounted on the sliding seat (270). A support plate (272) is fixedly mounted on the top of the linear guide (271), and a guide rail c (273) is fixedly mounted on the top of the support plate (272). A mounting seat c (274) is slidably mounted on the guide rail c (273), and a cutter head (274) is rotatably mounted on the top of the mounting seat c (274). 5) A cutting blade (276) is provided on the cutter head (275). A servo motor d (277) and a nozzle (278) are provided on the top of the cutter head (275). A cylinder c (279) is also provided on the support plate (272). The cylinder c (279) is fixedly connected to the mounting base c (274). A drive seat b (2710) is fixedly provided at one end of the support plate (272). A hydraulic rod b (2711) is movably provided inside the drive seat b (2710). A drill bit (2712) is provided at the front end of the hydraulic rod b (2711).

9. The fully automatic through-type piston rod high-efficiency and stable processing device according to claim 8, characterized in that, The feeding mechanism (1) includes a conveyor (11) fixedly installed on the left side of the lathe body (21). A feeding rack (12) is provided on one side of the conveyor (11). A servo motor e (13) and a transmission belt (14) driven by the servo motor e (13) are provided on the conveyor (11). A material rack (15) and a cylinder d (16) are provided on the top of the conveyor (11).

10. The fully automatic through-type piston rod high-efficiency and stable processing device according to claim 9, characterized in that, The material unloading mechanism (3) includes a stacking platform (31) fixedly installed on the right side of the lathe body (21), and the stacking platform (31) is provided with a receiving rack (32) and an inclined guide plate (33).

Images