CN-121972968-A - Integrated platform for pin shaft machining

Abstract

The invention relates to the technical field of pin shaft processing, in particular to an integrated platform for pin shaft processing, which comprises a frame, turning tools, chucks, a manipulator, a tailstock, a traversing module, a longitudinally moving module, supporting plates and a drill bit, wherein the turning tools and the chucks are arranged on the frame, the two groups of turning tools are respectively positioned on the left side and the right side of the chucks, the traversing module is arranged on the frame, the two groups of longitudinally moving modules are arranged on the traversing module, the two supporting plates are respectively arranged on the two groups of longitudinally moving modules, the drill bit is connected to the frame in a sliding manner, and the drill bit is positioned above the supporting plates; according to the invention, through the longitudinal and transverse dynamic adjustment of the supporting plate, and the shaking impurity removal and drilling supporting modes of the supporting plate in the adjustment process, the automatic adaptation to the processing of pin shafts with different lengths and diameters is realized, and the turning and drilling are enabled to participate in the same positioning, so that the positioning times are further reduced, and the purposes of improving the processing efficiency and the processing quality are achieved.

Inventors

• Chen Maina
• YANG ZHONGYU
• DU SHANGWEI

Assignees

• 陈咪娜

Dates

Publication Date

20260505

Application Date

20251217

Claims (10)

1. 1. The integrated platform for machining the pin shaft is used for turning and drilling a pin shaft workpiece (10), and comprises a frame (1), turning tools (2), chucks (3), a manipulator (4) and a tailstock (5), wherein the chucks (3) and the turning tools (2) are both arranged on the frame (1), and two groups of turning tools (2) are respectively arranged on the left side and the right side of the chucks (3), and the integrated platform is characterized by further comprising a transverse moving module (6), a longitudinal moving module (7), a supporting plate (8) and a drill bit (9), wherein the transverse moving module (6) is arranged on the frame (1), two groups of longitudinal moving modules (7) are arranged on the transverse moving module (6), the two supporting plates (8) are respectively arranged on the two longitudinal moving modules (7), the drill bit (9) is slidably connected on the frame (1), and the drill bit (9) is arranged above the supporting plate (8); The supporting plate (8) is driven by the longitudinal moving module (7) to ascend, the supporting plate (8) is immediately stopped after contacting the turned right section of the pin shaft workpiece (10), the supporting plate (8) is driven by the longitudinal moving module (7) to reciprocate from top to bottom, the supporting plate (8) is adjusted by the transverse moving module (6) to support the turned left section and right section of the pin shaft workpiece (10), and the supporting plate (8) on the right side adjusted by the transverse moving module (6) is located under the drilling position of the pin shaft workpiece (10).
2. 2. The integrated platform for pin shaft machining according to claim 1, wherein the traverse module (6) comprises a centering plate (61), a centering screw (62), a centering motor (63), traverse plates (64), traverse screws (65) and traverse motors (66), the centering plate (61) is installed above the frame (1), the two traverse plates (64) are slidably connected above the centering plate (61), the traverse screws (65) penetrate through the two traverse plates (64), the traverse motors (66) are installed above the centering plate (61), an output shaft of each traverse motor (66) is connected with each traverse screw (65), each traverse screw (65) is a bidirectional screw, surfaces with equal threaded distances from the upper side to the two sides of each traverse screw (65) are traverse intermediate surfaces (651), surfaces with equal distances from the upper side to the left side and the right side of the pin shaft workpiece (10) clamped by the chuck (3) are intermediate surfaces (101), and the intermediate surfaces (651) are coincident with the intermediate surfaces (101).
3. 3. The integrated platform for pin shaft machining according to claim 2, wherein the aligning plate (61) is slidably mounted above the frame (1), the aligning screw (62) penetrates through the aligning plate (61), and an output shaft of the aligning motor (63) is connected with the aligning screw (62).
4. 4. The integrated platform for pin shaft machining according to claim 2, wherein the longitudinal moving module (7) comprises a longitudinal moving plate (71), a longitudinal moving screw rod (72) and a longitudinal moving motor (73), the longitudinal moving plate (71) is connected to the transverse moving plate (64) in a sliding mode, the longitudinal moving screw rod (72) penetrates through the longitudinal moving plate (71), the longitudinal moving motor (73) is installed behind the transverse moving plate (64), and an output shaft of the longitudinal moving motor (73) is connected with the longitudinal moving screw rod (72).
5. 5. The integrated platform for pin shaft machining according to claim 4, wherein the supporting plates (8) are arranged on the longitudinal plates (71), the minimum distance between the two supporting plates (8) is larger than the width of the chuck (3), and the distances from the two supporting plates (8) to the transverse moving middle plane (651) are equal.
6. 6. The integrated platform for pin shaft machining according to claim 1 or 5, wherein the supporting plate (8) comprises an upper cavity (81) and a lower cavity (82) from top to bottom, the upper cavity (81) is of a symmetrical wedge-shaped structure with an opening width decreasing downwards, and the bottom surface of the lower cavity (82) is of an arch-shaped structure.
7. 7. The integrated platform for machining pin shafts according to claim 6, wherein the drill (9) has a translational degree of freedom in a left-right direction, an up-down direction and a rotational degree of freedom about a vertical axis, and a rotational center axis of the drill (9) coincides with a front-rear symmetry plane of the upper cavity (81).
8. 8. The integrated platform for pin shaft machining according to claim 6, wherein the pressure sensor (811) is installed on the surface of the cavity wall of the upper cavity (81), and the pressure sensors (811) are installed on the same side cavity wall of the two upper cavities (81).
9. 9. The integrated platform for pin shaft machining according to claim 5, wherein the supporting plate (8) is hinged to the longitudinal plate (71), a sliding groove (641) is formed in the transverse plate (64), the sliding groove (641) comprises a vertical section (6411) and a convex section (6412), the vertical section (6411) is located at the upper end and the lower end of the convex section (6412), a push rod (83) is fixedly connected to the right side of the supporting plate (8), the right end of the push rod (83) is of a cylindrical structure, and the cylindrical structure of the push rod (83) is clamped with the sliding groove (641).
10. 10. The integrated platform for pin shaft machining according to claim 2, wherein a proximity piece (642) is mounted on the left side of the right lateral plate (64), and a photoelectric sensor (91) is mounted on the right side of the drill (9).

Description

Integrated platform for pin shaft machining Technical Field The invention relates to the technical field of pin shaft machining, in particular to an integrated platform for pin shaft machining. Background The pin shaft is a standardized fastener, is commonly used at the joint of two parts and serves as a central rotating shaft, and the common structure of the pin shaft comprises a pin head, a pin body and a pin hole. The structure of the pin shaft determines the machining process of the pin shaft, the machining process usually comprises turning and drilling, the traditional machining mode is that a lathe is used for turning a datum plane at one end of a columnar blank, then the datum plane is clamped, rough turning is carried out on the blank, then the clamping end of the blank is taken out, a pin head is precisely turned, then the pin head is clamped, a vehicle body is precisely turned, finally the turned pin shaft is fixed on a drilling jig, a drill bit is used for drilling a pin hole, the mechanical machining of the pin shaft is carried out at least five times, the frequent positioning not only reduces the machining efficiency, but also causes multiple accumulation of positioning errors, and therefore the machining quality is reduced. In order to reduce the number of times of positioning in the pin shaft machining so as to improve the machining efficiency and the machining quality, the prior art can improve an ordinary lathe, such as a double-lathe head lathe, wherein the double-lathe head lathe is provided with a chuck, a manipulator, a tailstock and turning tools on two sides of the chuck, when the pin shaft is machined, the manipulator is firstly used for conveying the middle section of a cylindrical blank into the chuck, two ends of the blank are machined simultaneously by means of two groups of turning tools (including rough machining and finish machining, at the moment, the positioning precision is enough because of the increase of the clamping area of the chuck, so that the finish machining can be directly performed after the rough machining), the blank is taken out by using the manipulator, the chuck clamps the pin head of the blank, and the tailstock abuts against the pin body end face of the blank so as to finish machining the middle section of the pin shaft, and thus, the positioning times in the pin shaft turning process are reduced from four times to two times. The double-lathe is used, although the number of positioning times in pin shaft machining can be reduced, the production efficiency and the production quality of the pin shaft are improved, the double-lathe still has the defect that the production efficiency and the production quality are affected, particularly, when the pin heads of blanks are clamped by using chucks, if the manipulators are continuously used, the manipulators have positioning effects on the blanks while clamping the blanks, when the chucks are clamped from the pin head ends, the blanks are subjected to shearing force and torsion force due to repeated positioning, the surfaces of the blanks are damaged, the positioning accuracy is affected, the prior art can arrange supporting plates on a frame to support the blanks, the clamping of the manipulators is replaced, the tail seat abuts against the pin body end face, the pin body slides on the supporting plates, the end face of the pin head abuts against the chucks, and finally the pin heads are clamped by the chucks, but the positions of the supporting plates in the prior art are always fixed, so that when the pin shafts with different specifications are machined, the supporting plates are required to be adjusted to adapt to production, the reduction of the machining efficiency is caused, and the fixed supporting plates are positioned below the pin shafts, the positioning accuracy during the turning is affected, the positioning accuracy is further, and the machining of the blanks is not affected when the positioning accuracy is further influenced, and the air-blowing machine is further influenced, and the quality is not affected when the machining is further, and the machining is carried out, and the quality is further in continuous, and the processing is in the machine is in the process. In order to enable the double-lathe to be suitable for the production of pin shafts with different specifications independently, improve the positioning precision in turning, and enable the turning and drilling to be carried out integrally, so as to improve the production efficiency and the production quality, the integrated platform for pin shaft processing is provided. Disclosure of Invention The invention aims to provide an integrated platform for pin shaft processing, which solves the problems that a supporting plate cannot be automatically adapted to pin shaft processing with different specifications and the positioning accuracy is affected by residual sundries on the surface of the supporting plate, and by dynamically adjusting th