A lathe for machining intermediate shaft

Abstract

The present invention relates to the technical field of lathes, and in particular to a lathe for processing intermediate shafts, comprising a bed frame, on which are mounted a step-by-step feeding mechanism for conveying intermediate shaft blanks, a brushing and decontamination component for bidirectional decontamination of the outer surface of the intermediate shaft blanks, a detection component for detecting the intermediate shaft blanks, a turning component for processing the intermediate shaft blanks, and a bidirectional polishing component for turning the intermediate shaft blanks, a material ejection frame is arranged at the lower part of the bed frame, a group of lifting push rods are arranged between the material ejection frame and the bed frame, a distance adjustment and transmission module is arranged on the material ejection frame, and the distance adjustment and transmission module is connected to two symmetrically arranged clamping frames for transmission. When the lathe is working, it can realize the step-by-step feeding of intermediate shaft blanks, weighing and detecting the feeding blanks, brushing of the blanks after weighing, three-dimensional imaging detection of the blanks after brushing, runout value detection and ultrasonic flaw detection, automatic turning of the blanks after detection, and automatic polishing of the blanks after turning.

Description

Technical Field

[0001] The invention relates to the technical field of lathes, and in particular to a lathe for machining an intermediate shaft. Background Art

[0002] The intermediate shaft is a shaft in the car's gearbox. The shaft itself is integrated with the gear. Its function is to connect the first shaft and the second shaft. By changing the shift lever, it can choose to mesh with different gears so that the two shafts can output different speeds, directions and torques. When processing the intermediate shaft, a lathe is needed to realize the processing of the intermediate shaft.

[0003] There are many types of lathes in the prior art, but the lathes in the prior art have the following technical problems when used: they are unable to realize the step-by-step loading of the intermediate shaft blank, the weighing detection of the loaded blank, the brushing of the blank after weighing, the three-dimensional imaging detection of the blank after brushing, the runout value detection and ultrasonic flaw detection, the automatic turning of the blank after detection, and the automatic polishing of the blank after turning in an integrated manner; the decontamination intensity cannot be changed by an eccentric brush, the polishing effect of the intermediate shaft blank is low, and repeated operations are required, resulting in reduced efficiency; based on this, we propose a lathe for processing intermediate shafts. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings existing in the background technology and to propose a lathe for machining an intermediate shaft.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is: a lathe for processing intermediate shafts, including a bed frame, on which are installed a stepping loading mechanism for conveying intermediate shaft blanks, a brushing and decontamination component for bidirectional decontamination of the outer surface of the intermediate shaft blank, a detection component for detecting the intermediate shaft blank, a turning component for processing the intermediate shaft blank and a bidirectional polishing component for the intermediate shaft blank after turning; a lifting frame is provided at the lower part of the bed frame, a group of lifting push rods are installed between the lifting frame and the bed frame, a distance adjustment and transmission module is installed on the lifting frame, and the distance adjustment and transmission module is transmission-connected to two symmetrically arranged clamping frames, and four regularly distributed conical chucks are rotatably installed on the two clamping frames, and a tensioning transmission component is installed on the bed frame, and the conical chuck is driven to rotate by the tensioning transmission component.

[0006] Preferably, the step-by-step feeding mechanism includes a transmission module installed on a bed frame, and the transmission module is transmission-connected to two symmetrically arranged annular feeding belts, and a group of regularly distributed support blocks are installed on the surface of each of the annular feeding belts, and two symmetrically arranged support wheels for supporting the intermediate shaft blank are installed on the support blocks.

[0007] Preferably, a cleaning station, an inspection station, a turning station and a polishing station are sequentially arranged on the bed frame along the conveying direction of the intermediate shaft blank, and the positions of the four conical chucks on each of the clamping frames correspond to the positions of the cleaning station, the inspection station, the turning station and the polishing station respectively, and a single-chip microcomputer is installed on the bed frame.

[0008] Preferably, the tensioning transmission component includes a tensioning block slidably connected to the bed frame, a tensioning spring limited by the bed frame is installed on the side of the tensioning block, a tensioning roller is rotatably installed on the inner wall of the tensioning block, a toothed belt is installed on the tensioning roller for transmission, four conical chucks on one of the clamping frames are linked by a belt, and one of the conical chucks on the other clamping frame is connected to the toothed belt for transmission.

[0009] Preferably, the cleaning and dirt removal component includes two symmetrically arranged cleaning modules and a dirt removal frame, the dirt removal frame is fixedly connected to the bed frame, a negative pressure vacuum cleaner is installed on the dirt removal frame, the cleaning module includes two revolving seats rotatably connected to the dirt removal frame, one of the revolving seats is connected to a ring toothed belt transmission, a brush shaft is rotatably installed between the two revolving seats, the brush shaft is arranged at an eccentric position of the revolving seat, spiral bristles are installed on the brush shaft, a gear ring is installed on the side of the dirt removal frame, the axis of the gear ring is on the rotation axis of the revolving seat, an internal gear is installed on the brush shaft, the internal gear is connected to the gear ring transmission, a group of negative pressure suction channels are opened on the brush shaft, the suction end of the negative pressure vacuum cleaner is connected to the two negative pressure suction channels through a three-way hose, and a plurality of groups of negative pressure suction holes are opened on the brush shaft, and each of the negative pressure suction holes is connected to the negative pressure suction channel.

[0010] Preferably, the detection component includes a linear drive module installed on the dirt removal frame and two symmetrically arranged support ears fixed on the dirt removal frame, each of the two support ears is installed with a ranging probe, and the data end of the ranging probe is connected with the data of the single-chip microcomputer; an inspection table is transmission-installed on the linear drive module, and a three-dimensional scanning probe, an electronic micrometer and an ultrasonic flaw detector are respectively installed on the inspection table; two weighing support rings are provided on the material ejecting frame, and a group of pressure sensors are installed between the two weighing support rings and the material ejecting frame, and the data ends of the three-dimensional scanning probe, the electronic micrometer, the pressure sensor and the ultrasonic flaw detector are all connected with the data of the single-chip microcomputer.

[0011] Preferably, the turning component comprises a dual-axis driving platform installed on a bed frame, the dual-axis driving platform is transmission-connected to a dual-axis movable tool platform, and a turning tool is installed on the tool platform.

[0012] Preferably, the bidirectional polishing component includes a polishing frame fixed on a bed frame, a first gear shaft and a second gear shaft are rotatably mounted on the polishing frame, the first gear shaft is connected to the annular gear belt transmission, a bevel gear is mounted on the first gear shaft and the second gear shaft, the two bevel gears are meshed with each other, a half-face gear is mounted on the second gear shaft, two polishing brush plates are slidably mounted on the polishing frame, two reset springs for limiting the position of the polishing brush plates are provided on the polishing frame, a driven gear plate is mounted on the two polishing brush plates, and the two driven gear plates are adapted to the half-face gear transmission.

[0013] Preferably, the distance adjustment and transmission module includes a sliding shaft rotatably connected to the lifting frame and driven by a first motor, a distance adjustment screw rod rotatably connected to the lifting frame and driven by a second motor, the distance adjustment screw rod is symmetrically provided with a positive thread segment and a negative thread segment, the two clamping frames are respectively transmission connected to the positive thread segment and the negative thread segment, a hollow sleeve is rotatably installed on one of the clamping frames, a hollow groove with openings at both ends fixedly opened inside the hollow sleeve and slidingly connected to the sliding shaft, the cross-sections of the hollow groove and the sliding shaft are both regular polygons, and the hollow sleeve is transmission connected to the annular toothed belt.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. When the lathe is working, it can realize the step-by-step loading of the intermediate shaft blank, the weighing detection of the loaded blank, the cleaning of the blank after weighing, the three-dimensional imaging detection of the blank after cleaning, the runout value detection and ultrasonic flaw detection, the automatic turning of the blank after detection, and the automatic polishing of the blank after turning. Through the realization of the above integrated process, the functionality and automation degree of the lathe are effectively improved;

[0016] 2. In the present invention, when processing the intermediate shaft blank, the step-by-step feeding mechanism is used for the step-by-step feeding of the intermediate shaft blank. During the non-feeding period of the intermediate shaft blank by the step-by-step feeding mechanism, the lifting rack lifts the intermediate shaft blank, and performs distance measurement detection, pre-cleaning, three-dimensional visual imaging detection, ultrasonic flaw detection and runout detection in sequence. The pre-detection is used to determine the yield of the intermediate shaft blank. When the intermediate shaft blank is not a good product, the single-chip microcomputer performs an audible and visual alarm to remind. By realizing the above-mentioned detection functions, the processing yield rate of the device is effectively improved.

[0017] 3. In the present invention, when the intermediate shaft blank moves to the brushing station, the revolution seat rotates at a set speed. When the revolution seat rotates, the eccentric setting of the brush shaft on the revolution seat reciprocates to change the strength of the brush shaft and the spiral bristles acting on the intermediate shaft blank. The reciprocating change of the strength of the spiral bristles on the intermediate shaft blank can effectively improve the cleaning effect of rust stains, residual dirt and scale on the surface of the intermediate shaft blank, thereby facilitating the subsequent high-precision inspection of the intermediate shaft blank and reducing the inspection accuracy error caused by rust stains, residual dirt and scale on the surface of the intermediate shaft blank. When the brush shaft rotates at a set orbit under the driving action of the revolution seat, the setting of the ring gear and the internal gear allows the brush shaft to spin eccentrically at a set speed when it rotates.

[0018] 4. In the present invention, after the lifting rack lifts the intermediate shaft blank to a set height, the bottom surfaces of the two polishing brush plates are pressed and fitted against the intermediate shaft blank with a set tightness. When the intermediate shaft blank and the polishing brush plates are pressed and fitted with a set tightness, under the driving action of the first gear shaft and the second gear shaft, the two polishing brush plates move back and forth synchronously in opposite directions within a set stroke, thereby realizing bidirectional mode polishing of the intermediate shaft blank after turning. During the polishing operation, the intermediate shaft blank rotates at a set speed, thereby realizing all-round polishing and deburring of the intermediate shaft blank after turning. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of a lathe for machining an intermediate shaft according to the present invention;

[0020] Figure 2 For the present invention Figure 1 A schematic diagram of the local enlarged structure at point A in the middle;

[0021] Figure 3 It is a schematic structural diagram of the linear drive module and the lifting push rod of the present invention;

[0022] Figure 4 For the present invention Figure 3 A schematic diagram of the local enlarged structure at B in the middle;

[0023] Figure 5 It is a schematic diagram of the structure of the dirt removal frame and the negative pressure vacuum cleaner of the present invention;

[0024] Figure 6 For the present invention Figure 5 A schematic diagram of the local enlarged structure at C in the middle;

[0025] Figure 7 For the present invention Figure 5 A schematic diagram of the local enlarged structure at D in the middle;

[0026] Figure 8 It is a structural schematic diagram of the clamp frame and the weighing support ring of the present invention;

[0027] Fig. 9 It is a structural schematic diagram of the ejector rack and the clamping frame of the present invention;

[0028] Fig.10 It is a schematic diagram of the local enlarged structure of E of the present invention;

[0029] Fig.11 It is a schematic diagram of the structure of the tensioning block and the tensioning roller of the present invention;

[0030] Fig.12 It is a schematic structural diagram of the turning tool and the dual-axis driving platform of the present invention.

[0031] In the attached drawings, the parts represented by the reference numerals are as follows: 1. bed frame; 2. intermediate shaft blank; 3. material lifting frame; 4. lifting push rod; 5. clamping frame; 6. conical chuck; 7. annular feeding belt; 8. support block; 9. support wheel; 10. single chip microcomputer; 11. tension block; 12. tension spring; 13. tension roller; 14. toothed belt; 15. dirt removal frame; 16. negative pressure vacuum cleaner; 17. revolution seat; 18. brush shaft; 19. spiral bristles; 20. gear ring; 21. internal gear; 22. negative pressure suction hole; 23. straight Linear drive module; 24, distance measuring probe; 25, inspection table; 26, three-dimensional scanning probe; 27, electronic micrometer; 28, ultrasonic flaw detector; 29, dual-axis drive platform; 30, tool table; 31, turning tool; 32, polishing rack; 33, first gear shaft; 34, second gear shaft; 35, half-face gear; 36, polishing brush plate; 37, reset spring; 38, driven gear plate; 39, sliding shaft; 40, pitch-adjusting screw rod; 41, hollow sleeve; 42, transmission module; 43, pressure sensor; 44, weighing support ring. DETAILED DESCRIPTION

[0032] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.

[0033] like Figure 1-Figure 12 A lathe for machining an intermediate shaft shown in the figure comprises a bed frame 1, on which a single chip computer 10 is mounted, on which a stepping feeding mechanism for conveying an intermediate shaft blank 2, a brushing and decontamination component for bidirectionally decontaminating the outer surface of the intermediate shaft blank 2, a detection component for detecting the intermediate shaft blank 2, a turning component for machining the intermediate shaft blank 2, and a bidirectional polishing component for the intermediate shaft blank 2 after turning are mounted;

[0034] The bed frame 1 is provided with a cleaning station, a detection station, a turning station and a polishing station in sequence along the conveying direction of the intermediate shaft blank 2;

[0035] like Figure 1 , Figure 2 , Figure 3 and Figure 8 As shown, the step-by-step feeding mechanism includes a transmission module 42 mounted on the bed frame 1, and the transmission module 42 is drivingly connected to two symmetrically arranged annular feeding belts 7, and a group of regularly distributed supporting blocks 8 are installed on the surface of each annular feeding belt 7, and two symmetrically arranged supporting wheels 9 for supporting the intermediate shaft blank 2 are installed on the supporting blocks 8;

[0036] A material lifting frame 3 is provided at the lower part of the bed frame 1, and a set of lifting push rods 4 are installed between the material lifting frame 3 and the bed frame 1;

[0037] The ejector frame 3 is provided with a distance adjustment and transmission module 42, which is transmission-connected to two symmetrically arranged clamping frames 5, and four regularly distributed conical clamps 6 are rotatably mounted on the two clamping frames 5;

[0038] The positions of the four conical chucks 6 on each chuck frame 5 correspond to the positions of the cleaning station, the inspection station, the turning station and the polishing station respectively;

[0039] like Figure 1 and Fig.11 As shown, a tensioning transmission component is installed on the bed frame 1, and the conical chuck 6 is driven to rotate by the tensioning transmission component.

[0040] The tensioning transmission component includes a tensioning block 11 slidably connected to the bed frame 1, a tensioning spring 12 limited by the bed frame 1 is installed on the side of the tensioning block 11, a tensioning roller 13 is rotatably installed on the inner wall of the tensioning block 11, and a ring toothed belt 14 is installed on the tensioning roller 13 for transmission;

[0041] By setting the tension spring 12, the tension roller 13 and the toothed belt 14, the toothed belt 14 can always keep tension and maintain the transmission effect when the ejector rack 3 changes its position;

[0042] like Figure 1 , Figure 5 , Figure 8 and Fig. 9 As shown, four conical chucks 6 on one chuck frame 5 are linked by a belt, and a conical chuck 6 on another chuck frame 5 is connected to the toothed belt 14 for transmission;

[0043] Through the above linkage and transmission connection structure, multiple conical chucks 6 can rotate synchronously and in the same direction;

[0044] After the conical chuck 6 rotates, it drives the intermediate shaft blank 2 to rotate at a set speed.

[0045] The cleaning and decontamination component includes two symmetrically arranged cleaning and decontamination modules and a decontamination frame 15, and the decontamination frame 15 is fixedly connected to the bed frame 1;

[0046] like Figure 1, Figure 5 , Figure 6 and Figure 7 As shown, a negative pressure vacuum cleaner 16 is installed on the dirt removal frame 15, and the cleaning brush module includes two revolution seats 17 rotatably connected to the dirt removal frame 15, one revolution seat 17 is transmission-connected to the ring toothed belt 14, and a brush shaft 18 is rotatably installed between the two revolution seats 17, and the brush shaft 18 is arranged at an eccentric position of the revolution seat 17;

[0047] The brush shaft 18 is provided with spiral bristles 19;

[0048] A gear ring 20 is installed on the side of the dirt removal frame 15, the axis of the gear ring 20 is on the rotation axis of the revolution seat 17, and an internal gear 21 is installed on the brush shaft 18, and the internal gear 21 is transmission-connected with the gear ring 20;

[0049] A set of negative pressure suction channels are provided on the brush shaft 18, and the suction end of the negative pressure vacuum cleaner 16 is connected to the two negative pressure suction channels through a three-way hose. A plurality of negative pressure suction holes 22 are provided on the brush shaft 18, and each negative pressure suction hole 22 is connected to the negative pressure suction channel;

[0050] like Figure 2 , Figure 5 , Figure 6 , Figure 7 and Fig. 9 As shown, when the intermediate shaft blank 2 is processed, the revolution seat 17 rotates at a set speed. When the revolution seat 17 revolves and rotates, the eccentric setting of the brush shaft 18 on the revolution seat 17 reciprocates to change the strength of the brush shaft 18 and the spiral brush 19 acting on the intermediate shaft blank 2. The reciprocating change of the strength of the spiral brush 19 acting on the intermediate shaft blank 2 can effectively improve the cleaning effect of rust stains, residual dirt and scale on the surface of the intermediate shaft blank 2, thereby facilitating the subsequent high-precision detection of the intermediate shaft blank 2 and reducing the detection accuracy error caused by rust stains, residual dirt and scale on the surface of the intermediate shaft blank 2. When the brush shaft 18 revolves and rotates at a set speed under the driving action of the revolution seat 17, the setting of the ring gear 20 and the internal gear 21 allows the brush shaft 18 to eccentrically spin at a set speed when it revolves and rotates.

[0051] The detection component includes a linear drive module 23 installed on the dirt removal frame 15 and two symmetrically arranged and fixed ears on the dirt removal frame 15, and a distance measuring probe 24 is installed on each of the two ears. The data end of the distance measuring probe 24 is connected to the single chip microcomputer 10.

[0052] The two distance measuring probes 24 are opposite-beam distance measuring probes 24. By setting the two distance measuring probes 24, the length of each intermediate shaft blank 2 is monitored in real time. By detecting the length of the intermediate shaft blank 2, whether the intermediate shaft blank 2 is good or not can be determined.

[0053] An inspection table 25 is installed on the linear drive module 23, and a three-dimensional scanning probe 26, an electronic micrometer 27 and an ultrasonic flaw detector 28 are installed on the inspection table 25 respectively. Two weighing support rings 44 are provided on the ejector rack 3, and a group of pressure sensors 43 are installed between the two weighing support rings 44 and the ejector rack 3. The data ends of the three-dimensional scanning probe 26, the electronic micrometer 27, the pressure sensor 43 and the ultrasonic flaw detector 28 are all connected to the data of the single-chip computer 10.

[0054] When the lifting frame 3 lifts the intermediate shaft blank 2 to the set height, the electronic micrometer 27 contacts the intermediate shaft blank 2, and then performs a roundness test on the intermediate shaft blank 2. When the intermediate shaft blank 2 is turned, the linear drive module 23 drives the inspection table 25 to move along the axial direction of the intermediate shaft blank 2. When the inspection table 25 moves along the axial direction of the intermediate shaft blank 2, the intermediate shaft blank 2 rotates at a set speed. After the intermediate shaft blank 2 rotates, the electronic micrometer 27 performs roundness and runout value detection on the intermediate shaft blank 2. When the roundness and runout value detection results of the intermediate shaft blank 2 are unqualified, the intermediate shaft blank 2 is judged to be waste. When the single-chip microcomputer 10 determines that the intermediate shaft blank 2 is waste, the turning step of the intermediate shaft blank 2 is automatically skipped.

[0055] The turning component comprises a double-axis driving platform 29 mounted on the bed frame 1 , and a tool platform 30 capable of double-axis movement is drivingly connected to the double-axis driving platform 29 , and a turning tool 31 is mounted on the tool platform 30 .

[0056] The dual-axis driving platform 29, the tool platform 30 and the turning tool 31 are commonly used components in the prior art. The turning component is used to drive the turning tool 31 to perform the turning operation of the intermediate shaft blank 2 with a set action;

[0057] The bidirectional polishing component includes a polishing frame 32 fixed on the bed frame 1, and a first gear shaft 33 and a second gear shaft 34 are rotatably mounted on the polishing frame 32, and the first gear shaft 33 is transmission-connected to the ring-toothed belt 14;

[0058] A bevel gear is installed on the first gear shaft 33 and the second gear shaft 34, and the two bevel gears are meshed with each other. A half-face gear 35 is installed on the second gear shaft 34. Two polishing brush plates 36 are slidably installed on the polishing frame 32. The polishing frame 32 is provided with two return springs 37 for limiting the position of the polishing brush plates 36. A driven gear plate 38 is installed on the two polishing brush plates 36, and the two driven gear plates 38 are adapted for transmission with the half-face gear 35.

[0059] When the material ejector 3 elevates the intermediate shaft blank 2 to a set height, the bottom surfaces of the two polishing brush plates 36 are pressed and fitted with the intermediate shaft blank 2 at a set tightness. When the intermediate shaft blank 2 and the polishing brush plates 36 are pressed and fitted with a set tightness, under the driving action of the first gear shaft 33 and the second gear shaft 34, the two polishing brush plates 36 synchronously reciprocate in opposite directions within a set stroke, thereby realizing bidirectional polishing of the intermediate shaft blank 2 after turning.

[0060] During the polishing operation, the intermediate shaft blank 2 rotates at a set speed, thereby achieving all-round polishing and deburring of the intermediate shaft blank 2 after turning;

[0061] The pitch adjustment and transmission module 42 includes a sliding shaft 39 rotatably connected to the material ejecting frame 3 and driven by a first motor, and a pitch adjustment screw rod 40 rotatably connected to the material ejecting frame 3 and driven by a second motor;

[0062] The pitch-adjusting screw rod 40 is symmetrically provided with a positive thread segment and a negative thread segment, and the two clamping frames 5 are respectively connected to the positive thread segment and the negative thread segment in a transmission manner;

[0063] By setting the positive thread segment and the negative thread segment, the two clamping frames 5 can approach each other or move away from each other at the same speed, and the distance between the two clamping frames 5 can be quickly changed by the two clamping frames 5 approaching or moving away from each other.

[0064] When the annular feeding belt 7 conveys the intermediate shaft blank 2 step by step, the two clamping frames 5 are sufficiently separated, and the conical chuck 6 loses its clamping effect on the intermediate shaft blank 2. After the annular feeding belt 7 has completed step-by-step feeding and conveying of the intermediate shaft blank 2, the two clamping frames 5 drive the conical chuck 6 to clamp the intermediate shaft blank 2. After the conical chuck 6 has clamped the intermediate shaft blank 2, the ejecting frame 3 lifts the intermediate shaft blank 2 and allows the intermediate shaft blank 2 to be cleaned, inspected, turned and polished.

[0065] The lifting height of the lifting rack 3 is the set value;

[0066] A hollow sleeve 41 is rotatably mounted on a clamping frame 5 , and a hollow groove with openings at both ends fixedly provided inside the hollow sleeve 41 and slidably connected to the sliding shaft 39 , the cross-sections of the hollow groove and the sliding shaft 39 are both regular polygons, and the hollow sleeve 41 is transmission-connected to the ring toothed belt 14 .

[0067] By setting the hollow groove and the regular polygonal cross section of the sliding shaft 39 , the sliding shaft 39 can continuously drive the hollow sleeve 41 during the process of changing the position of the clamping frame 5 .

[0068] The working principle of the present invention is as follows: when the intermediate shaft blank 2 is being processed, the step-feeding mechanism is used for the step-feeding of the intermediate shaft blank 2. During the non-feeding period of the step-feeding mechanism for the intermediate shaft blank 2, the lifting frame 3 lifts the intermediate shaft blank 2 and sequentially performs distance measurement detection, pre-cleaning, three-dimensional visual imaging detection, ultrasonic flaw detection and run-out detection. The pre-detection is used to determine the quality of the intermediate shaft blank 2. When the intermediate shaft blank 2 is not a good product, the single-chip microcomputer 10 performs The sound and light alarm is activated, and when the intermediate shaft blank 2 moves to the cleaning station, the revolution seat 17 rotates at a set speed. When the revolution seat 17 rotates, the eccentric setting of the brush shaft 18 on the revolution seat 17 reciprocates to change the strength of the brush shaft 18 and the spiral bristles 19 acting on the intermediate shaft blank 2. The reciprocating change of the strength of the spiral bristles 19 acting on the intermediate shaft blank 2 can effectively improve the cleaning effect of rust stains, residual dirt and scale on the surface of the intermediate shaft blank 2, thereby It is convenient for the subsequent high-precision detection of the intermediate shaft blank 2, and reduces the detection accuracy error caused by rust, residue and scale on the surface of the intermediate shaft blank 2. When the brush shaft 18 rotates at a set orbital speed under the driving action of the orbital seat 17, the brush shaft 18 can eccentrically spin at a set speed when it rotates at an orbital speed through the arrangement of the ring gear 20 and the internal gear 21. When the lifting frame 3 lifts the intermediate shaft blank 2 to a set height, the bottom surfaces of the two polishing brush plates 36 are pressed and fitted with the intermediate shaft blank 2 at a set tightness. When the intermediate shaft blank 2 and the polishing brush plates 36 are pressed and fitted with the set tightness, under the driving action of the first gear shaft 33 and the second gear shaft 34, the two polishing brush plates 36 synchronously reciprocate in opposite directions within a set stroke, thereby realizing the bidirectional mode polishing of the intermediate shaft blank 2 after turning, and during the polishing operation, the intermediate shaft blank 2 rotates at a set speed, thereby realizing the all-round polishing and deburring of the intermediate shaft blank 2 after turning.

[0069] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the attached claims and their equivalents.

Claims

1. A lathe for machining an intermediate shaft, comprising a bed frame (1), characterized in that: The bed frame (1) is equipped with a stepping feeding mechanism for conveying the intermediate shaft blank (2), a brushing and decontamination component for bidirectionally decontaminating the outer surface of the intermediate shaft blank (2), a detection component for detecting the intermediate shaft blank (2), a turning component for processing the intermediate shaft blank (2) and a bidirectional polishing component for turning the intermediate shaft blank (2). The lower part of the bed frame (1) is provided with a lifting frame (3), a group of lifting push rods (4) are installed between the lifting frame (3) and the bed frame (1), and the lifting frame (3) is equipped with a distance adjustment and transmission module (42). The distance adjustment and transmission module (42) is connected to two symmetrically arranged clamping frames (5) in a transmission manner. Four regularly distributed conical chucks (6) are rotatably installed on the two clamping frames (5). A tensioning transmission component is installed on the bed frame (1), and the conical chuck (6) is driven to rotate by the tensioning transmission component. The cleaning and decontamination component comprises two symmetrically arranged cleaning and decontamination modules and a decontamination frame (15), the decontamination frame (15) being fixedly connected to the bed frame (1), a negative pressure vacuum cleaner (16) being mounted on the decontamination frame (15), the cleaning and decontamination module comprising two revolution seats (17) rotatably connected to the decontamination frame (15), one of the revolution seats (17) being transmission-connected to the toothed belt (14), a brush shaft (18) being rotatably mounted between the two revolution seats (17), the brush shaft (18) being arranged at an eccentric position of the revolution seat (17), and a spiral brush shaft (18) being mounted on the brush shaft (18). Bristles (19), a gear ring (20) is installed on the side of the dirt removal frame (15), the axis of the gear ring (20) is on the rotation axis of the revolution seat (17), an internal gear (21) is installed on the brush shaft (18), the internal gear (21) is connected to the gear ring (20) in a transmission manner, a group of negative pressure suction channels are opened on the brush shaft (18), the suction end of the negative pressure vacuum cleaner (16) is connected to the two negative pressure suction channels through a three-way hose, and a plurality of groups of negative pressure suction holes (22) are opened on the brush shaft (18), and each of the negative pressure suction holes (22) is connected to the negative pressure suction channel; The bidirectional polishing component comprises a polishing frame (32) fixed on a bed frame (1); a first gear shaft (33) and a second gear shaft (34) are rotatably mounted on the polishing frame (32); the first gear shaft (33) is transmission-connected to an annular toothed belt (14); a bevel gear is mounted on each of the first gear shaft (33) and the second gear shaft (34); the two bevel gears are meshed with each other; a half-face gear (35) is mounted on the second gear shaft (34); two polishing brush plates (36) are slidably mounted on the polishing frame (32); two return springs (37) for limiting the position of the polishing brush plates (36) are provided on the polishing frame (32); a driven gear plate (38) is mounted on each of the two polishing brush plates (36); the two driven gear plates (38) are transmission-compatible with the half-face gear (35).

2. A lathe for machining an intermediate shaft according to claim 1, characterized in that: The step-by-step feeding mechanism comprises a transmission module (42) mounted on a bed frame (1), the transmission module (42) being transmission-connected to two symmetrically arranged annular feeding belts (7), a group of regularly distributed supporting blocks (8) being mounted on the surface of each annular feeding belt (7), and two symmetrically arranged supporting wheels (9) being mounted on the supporting blocks (8) for supporting the intermediate shaft blank (2).

3. A lathe for machining an intermediate shaft according to claim 1, characterized in that: A cleaning station, a detection station, a turning station and a polishing station are sequentially arranged on the bed frame (1) along the conveying direction of the intermediate shaft blank (2); the positions of the four conical chucks (6) on each of the clamping frames (5) respectively correspond to the positions of the cleaning station, the detection station, the turning station and the polishing station; and a single-chip computer (10) is installed on the bed frame (1).

4. A lathe for machining an intermediate shaft according to claim 1, characterized in that: The tensioning transmission component comprises a tensioning block (11) slidably connected to the bed frame (1), a tensioning spring (12) limited by the bed frame (1) is installed on the side of the tensioning block (11), a tensioning roller (13) is rotatably installed on the inner wall of the tensioning block (11), a ring-toothed belt (14) is installed on the tensioning roller (13) for transmission, four conical chucks (6) on one of the clamping frames (5) are linked by a belt, and one of the conical chucks (6) on the other clamping frame (5) is connected to the ring-toothed belt (14) for transmission.

5. A lathe for machining an intermediate shaft according to claim 1, characterized in that: The detection component comprises a linear drive module (23) mounted on the dirt removal frame (15) and two symmetrically arranged support ears fixed on the dirt removal frame (15), each of the two support ears being mounted with a distance measuring probe (24), a data end of the distance measuring probe (24) being data-connected to a single-chip computer (10), a detection platform (25) being transmission-mounted on the linear drive module (23), a three-dimensional scanning probe (26), an electronic micrometer (27) and an ultrasonic flaw detector (28) being respectively mounted on the detection platform (25), two weighing support rings (44) being arranged on the ejecting frame (3), a group of pressure sensors (43) being mounted between the two weighing support rings (44) and the ejecting frame (3), and data ends of the three-dimensional scanning probe (26), the electronic micrometer (27), the pressure sensor (43) and the ultrasonic flaw detector (28) being data-connected to the single-chip computer (10).

6. A lathe for machining an intermediate shaft according to claim 1, characterized in that: The turning component comprises a double-axis driving platform (29) mounted on a bed frame (1), the double-axis driving platform (29) being transmission-connected to a double-axis movable tool platform (30), and a turning tool (31) being mounted on the tool platform (30).

7. A lathe for machining an intermediate shaft according to claim 1, characterized in that: The pitch adjustment and transmission module (42) comprises a sliding shaft (39) rotatably connected to the ejecting frame (3) and driven by a first motor, and a pitch adjustment screw (40) rotatably connected to the ejecting frame (3) and driven by a second motor, the pitch adjustment screw (40) being symmetrically provided with a positive thread segment and a negative thread segment, the two clamping frames (5) being respectively transmission-connected to the positive thread segment and the negative thread segment, a hollow sleeve (41) being rotatably mounted on the clamping frame (5), a hollow groove having openings at both ends and being slidably connected to the sliding shaft (39) being fixedly provided inside the hollow sleeve (41), the cross-sections of the hollow groove and the sliding shaft (39) being both regular polygons, and the hollow sleeve (41) being transmission-connected to the toothed belt (14).

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