CN-121973008-A - Star sleeve hard milling ball channel positioner

CN121973008ACN 121973008 ACN121973008 ACN 121973008ACN-121973008-A

Abstract

The invention belongs to the technical field of machining, in particular to a star-shaped sleeve hard milling ball channel positioner, which comprises a positioning substrate serving as a shell, wherein a movable groove is formed in the upper surface of the positioning substrate, a positioning cover is inserted into the inner surface of the movable groove in a sliding manner, the upper surface of the positioning cover is fixedly connected with the upper surface of the positioning substrate through fixing bolts distributed in an annular array, blanking holes are formed in the positioning cover from the upper surface to the lower surface of the positioning cover in a penetrating manner, a positioning mechanism is arranged on the inner surface of the positioning cover, and an adjusting mechanism is arranged between the lower surface of the positioning mechanism and the inner bottom surface of the movable groove. According to the star-shaped sleeve hard milling ball channel positioner, the three rubber rollers which are in triangular synchronous rotation can apply uniform tangential friction force to the outer wall of a product, so that initial position offset and angle deflection of the product can be effectively corrected, quick centering is realized, and the product is automatically adjusted to the theoretical center position of a blanking hole.

Inventors

YAN JIAWEI
LI DEJIN
WU TIANXING
NIE DACHAO
ZHU MINGJIE
Qiao Chengwen

Assignees

浙江康普瑞汽车零部件有限公司

Dates

Publication Date: 20260505
Application Date: 20260209

Claims (10)

1. The star-shaped sleeve hard milling ball channel positioner comprises a positioning substrate (1) serving as a shell and is characterized in that a movable groove (11) is formed in the upper surface of the positioning substrate (1), a positioning cover (2) is slidably inserted into the inner surface of the movable groove (11), the upper surface of the positioning cover (2) is fixedly connected with the upper surface of the positioning substrate (1) through fixing bolts distributed in an annular array, blanking holes (21) are formed in the positioning cover (2) in a penetrating manner from the upper surface to the lower surface of the positioning cover, a positioning mechanism (4) is arranged on the inner surface of the positioning cover (2), and an adjusting mechanism (3) is arranged between the lower surface of the positioning mechanism (4) and the inner bottom surface of the movable groove (11); Wherein, the adjusting mechanism (3) adjusts the gesture of the product placed in the blanking hole (21), and the positioning mechanism (4) acts after the gesture is adjusted; The positioning mechanism (4) extends to the groove of the product and props against the outer surface of the product, so that the product is positioned and clamped.
2. The star-shaped sleeve milling ball channel positioner according to claim 1, wherein the adjusting mechanism (3) comprises a servo motor (31) fixedly connected with the inner bottom wall of the movable groove (11), a supporting plate (32) is fixedly connected with the upper surface of a shell of the servo motor (31), and an output shaft of the servo motor (31) extends to the upper surface of the supporting plate (32) and is fixedly sleeved with a driving gear (33) on the outer surface of the output shaft.
3. The star-shaped sleeve milling ball channel positioner according to claim 2, wherein the adjusting mechanism (3) further comprises adjusting gears (34) which are rotatably connected in an annular distribution on the upper surface of the supporting plate (32), and a plurality of the adjusting gears (34) are respectively meshed with the driving gears (33).
4. The star-shaped sleeve milling ball channel positioner according to claim 3, wherein the adjusting mechanism (3) further comprises an adjusting rod (35) fixedly connected with one side of a panel of the adjusting gear (34), the upper surface of the adjusting rod (35) is rotatably connected with rubber rollers (36) through a supporting shaft, the three rubber rollers (36) are distributed in a triangular shape, the outer surfaces of the rubber rollers (36) are in contact with the outer surfaces of products, and the placement positions of the products are centered and adjusted after the three rubber rollers (36) synchronously rotate.
5. The star-shaped sleeve milling ball channel positioner according to claim 4, wherein the adjusting mechanism (3) further comprises a shielding cover plate (37) supported and installed on the upper surface of the wheel shaft of the adjusting gear (34), and an elastic base (38) is fixedly connected to the upper surface of the shielding cover plate (37).
6. The star-shaped sleeve hard milling ball channel positioner according to claim 5, wherein the elastic base (38) is composed of a conical elastic membrane, an elastic cavity is formed in the elastic base (38), a reference base (39) is fixedly connected to the upper surface of the elastic base (38), the reference base (39) is composed of a conical cavity base and a circular ring fixed on the upper surface of the conical cavity base, and the diameter of the circular ring is smaller than that of the upper surface of the conical cavity base.
7. The star-shaped sleeve milling ball channel positioner according to claim 6, wherein the positioning cover (2) is T-shaped, the positioning mechanism (4) comprises guide convex columns (41) which are annularly distributed and fixedly connected to the inner surface of the positioning cover (2), an annular groove (42) is formed in the inner surface of the middle section of the positioning cover (2), and positioning clamping columns (43) which are annularly distributed and extend and retract towards the outer surface of a product are arranged on the inner surface of the annular groove (42).
8. The star-shaped sleeve milling ball channel positioner according to claim 7, wherein a telescopic groove (44) is formed in the positioning clamp column (43), T-shaped rubber contact heads (45) are slidably telescopic on the inner surface of the telescopic groove (44), extrusion holes (46) fixedly communicated with the inner part of the telescopic groove (44) are formed in the outer surface of the positioning clamp column (43) in an annular distribution mode, positioning steel balls (47) are slidably connected to the inner surface of the extrusion holes (46), the blanking holes (21) are consistent with the shape of a product, and the positioning steel balls (47) in the extrusion holes (46) on two sides are propped against the inner surface of a groove of the product for positioning and clamping after being propped out.
9. The star-shaped sleeve milling ball channel positioner according to claim 8, wherein the positioning mechanism (4) further comprises extrusion steel balls (48) fixedly connected to the outer surfaces of the tail ends of the rubber contact heads (45), the outer surfaces of the extrusion steel balls (48) are in sliding contact with the outer surfaces of the positioning steel balls (47), a reset spring (49) is fixedly sleeved on the outer surfaces of the tail ends of the rubber contact heads (45), and the free ends of the reset spring (49) are fixedly connected with the inner walls of the telescopic grooves (44).
10. The star-shaped sleeve milling ball channel positioner according to claim 9, wherein the positioning mechanism (4) further comprises cushion blocks (50) fixedly connected with the inner top wall and the inner bottom wall of the annular groove (42), the positions of the cushion blocks (50) are in one-to-one correspondence with the positions of the positioning clamp columns (43), adjusting rings (51) are rotatably connected between the upper and lower groups of cushion blocks (50), movable clamping grooves (53) are formed in the tail end surfaces of the positioning clamp columns (43), the inner surfaces of the movable clamping grooves (53) are in sliding clamping connection with the outer surfaces of the adjusting rings (51), telescopic sliding grooves (52) are formed in the opposite side surfaces of each group of cushion blocks (50), the outer surfaces of the positioning clamp columns (43) are in sliding connection with the inner surfaces of the telescopic sliding grooves (52), path grooves (54) are formed in annular distribution, adjusting columns (55) are fixedly connected with the inner surfaces of one ends of the movable clamping grooves (53), and the outer surfaces of the adjusting columns (55) are in sliding connection with the inner surfaces of the path grooves (54). The adjusting device is characterized in that an adjusting tooth (56) is arranged on the outer surface of a section of the adjusting ring (51), a linkage opening (57) penetrating through the outer surface of the positioning cover (2) is formed in one end of the annular groove (42), an adjusting screw (58) is rotatably connected to the peripheral side surface of the positioning cover (2) through a supporting side plate, the adjusting screw (58) is meshed with the adjusting tooth (56), a universal connecting joint (59) is hinged to one end of the adjusting screw (58), an adjusting motor (60) is fixedly connected to the lower surface of a transverse plate of the positioning cover (2), and the outer surface of an output shaft of the adjusting motor (60) is fixedly connected with the free end of the universal connecting joint (59) through a coupler.

Description

Star sleeve hard milling ball channel positioner Technical Field The invention relates to the technical field of machining, in particular to a star-shaped sleeve hard milling ball channel positioner. Background In the field of machining, particularly in the process of high-precision hard milling, the positioning precision and stability of a workpiece directly determine the machining quality and efficiency. For workpieces with complex geometric characteristics such as star-shaped sleeves, the positioning is particularly difficult, and the traditional positioning mode generally has the following problems: At present, the traditional clamp is manually adjusted and locked, the experience of operators is relied on, the positioning with high repeated precision is difficult to realize, the machining deviation is easy to cause, the existing positioner is positioned at the junction position of the ball channel and the plane of a product by the inclined plane of the positioning column, the phenomenon that the positioning is inaccurate due to factors such as burrs and curling of the product exists, the allowance subsection during the machining is affected, and finally the hardness layer depth of two sides of the product is affected. When the concentricity of the chuck and the positioning mechanism is large, the chuck can easily lead to product clamping inclination due to the fact that the positioning mechanism does not have the capability of horizontally displacing the product when clamping the product, meanwhile, workpieces need to be put in a trial mode for many times, manually centered and clamped step by step, the preparation time is long, and the overall machining efficiency is affected, so that the invention solves the defects of the technical problems. Disclosure of Invention Based on the technical problems, the invention provides a star-shaped sleeve hard milling ball channel positioner. The invention provides a star-shaped sleeve hard milling ball channel positioner which comprises a positioning substrate used as a shell, wherein a movable groove is formed in the upper surface of the positioning substrate, a positioning cover is inserted into the inner surface of the movable groove in a sliding manner, the upper surface of the positioning cover is fixedly connected with the upper surface of the positioning substrate through fixing bolts distributed in an annular array, blanking holes are formed in the positioning cover from the upper surface to the lower surface of the positioning cover in a penetrating manner, a positioning mechanism is arranged on the inner surface of the positioning cover, and an adjusting mechanism is arranged between the lower surface of the positioning mechanism and the inner bottom surface of the movable groove. The adjusting mechanism adjusts the gesture of the product placed in the blanking hole, and the positioning mechanism acts after the gesture is adjusted. The positioning mechanism extends to the groove of the product and props against the outer surface of the product, so that the product is positioned and clamped. Preferably, the adjusting mechanism comprises a servo motor fixedly connected with the inner bottom wall of the movable groove, the upper surface of a shell of the servo motor is fixedly connected with a supporting plate, and an output shaft of the servo motor extends to the upper surface of the supporting plate and is fixedly sleeved with a driving gear on the outer surface of the output shaft of the servo motor. Preferably, the adjusting mechanism further comprises adjusting gears which are rotatably connected to the upper surface of the supporting plate in a ring-shaped distribution manner, and the plurality of adjusting gears are respectively meshed with the driving gears. Preferably, the adjusting mechanism further comprises an adjusting rod fixedly connected with one side of a panel of the adjusting gear, the upper surface of the adjusting rod is rotatably connected with rubber rollers through a supporting shaft, three rubber rollers are distributed in a triangular shape, the outer surfaces of the rubber rollers are in contact with the outer surfaces of products, and the placing positions of the products are centered and adjusted after the three rubber rollers synchronously rotate. Preferably, the adjusting mechanism further comprises a shielding cover plate which is supported and installed on the upper surface of the adjusting gear wheel shaft, and an elastic base is fixedly connected to the upper surface of the shielding cover plate. Preferably, the elastic base is composed of a conical elastic membrane, an elastic cavity is formed in the elastic base, a reference base is fixedly connected to the upper surface of the elastic base, the reference base is composed of a conical cavity base and a circular ring fixed to the upper surface of the conical cavity base, and the diameter of the circular ring is smaller than that of the upper surface of the conical cavity