Axial oil groove milling machine tool accurate in positioning

Abstract

An axial oil groove milling machine tool accurate in positioning comprises a lathe and a second rotary conveying device. The second rotary conveying device comprises a second rotary disc, a positioning device and a clamping device. The second rotary disc is provided with a conveying hole and a mounting hole. The second rotary disc is static when one conveying hole coincides with the air cylinder chuck. The positioning device comprises a positioning groove formed in the edge of the second rotary disc and a positioner. The arrangement direction of the two positioning grooves is perpendicular to the arrangement direction of the two conveying holes, and the two positioning grooves pass through the circle center of the second rotary disc. A positioning rod is arranged in the positioner and is perpendicular to the arrangement direction of the two conveying holes. During positioning, the positioning rod extends to abut against the positioning groove, and the extending direction of the positioning groove is parallel to the positioning rod. According to the accurate-positioning axial oil groove milling machine tool, the second rotary disc rotates at a fixed angle, and the positioning device is used for calibration so that high-precision machining can be achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a milling oil groove machine tool field, especially in a kind of positioning accurate axial milling oil groove machine tool. BACKGROUND

[0002] Axial oil groove is a common structure in mechanical equipment, which is mainly used to guide the flow of lubricating oil or hydraulic oil in lubrication or hydraulic system, thereby reducing friction, prolonging mechanical life and improving work efficiency. The precision and position of axial oil groove directly affect the lubrication performance of mechanical system, so the technical requirements for axial oil groove processing are constantly improved.

[0003] In the prior art, the machining of axial oil groove usually adopts milling or turning process. Although the traditional milling method can realize a certain degree of machining precision, due to the difficulty in precise positioning of the path and the cumulative error caused by multiple clamping, the machining effect is difficult to meet the demand of high-precision and high-complexity parts.

[0004] In order to meet the demand of high-precision oil groove machining in the market, it is urgent to need a machine tool capable of realizing high-precision positioning. UTILITY MODEL CONTENT

[0005] Therefore, the utility model provides a kind of positioning accurate axial milling oil groove machine tool to solve the above problems.

[0006] The application discloses an accurate positioning axial milling oil groove machine tool, which comprises a lathe and a second rotary conveying device arranged on the lathe. The second rotary conveying device comprises a second rotary disc, a second motor arranged between the second rotary disc and the lathe, a positioning device arranged corresponding to the second rotary disc, and two clamping devices arranged on the second rotary disc. The second rotary disc is provided with two center-symmetrical conveying holes and a mounting hole arranged at the center of the second rotary disc. The second motor drives the second rotary disc to rotate. The positioning device comprises two positioning grooves arranged at the edges of the second rotary disc and a positioner. The positioning grooves are arranged vertically to the arrangement direction of the two conveying holes and pass through the center of the second rotary disc. The positioner is provided with a positioning rod which is perpendicular to the arrangement direction of the two conveying holes. During positioning, the positioning rod extends into the positioning groove, so that the extension direction of the positioning groove is parallel to the positioning rod. The clamping device comprises a mounting plate arranged at the center of the second rotary disc, four guide rods arranged on the mounting plate respectively, a fixed clamp arranged on the guide rods, a movable clamp arranged on the guide rods, and a driving cylinder between the mounting plate. The two guide rods are arranged on the two sides of the mounting plate respectively. The two guide rods on one side are arranged on the two sides of the cylinder respectively and movably penetrate the movable clamp and the fixed clamp. One end of the guide rod is fixed on the mounting plate, and the other end is fixed on the fixed clamp. The movable clamp is movably arranged on the guide rod. The fixed clamp and the movable clamp are oppositely arranged to form a clamping head. The fixed clamp is fixed on the second rotary disc, and the two fixed clamps are arranged above the conveying holes when the driving cylinder is not started. The movable clamp is connected with the driving cylinder. The driving cylinder is provided with a transmission rod connected with the movable clamp. The distance between the fixed clamp and the movable clamp is adjusted to control the clamping and releasing of the shaft sleeve.

[0007] Further, the accurate positioning axial milling oil groove machine tool further comprises a rotary conveying device arranged on the lathe and a milling oil groove device arranged corresponding to the second rotary conveying device.

[0008] Further, the rotary conveying device comprises a rotary disc, a motor device arranged between the rotary disc and the lathe, and a conveying device arranged on the lathe. The rotary disc is uniformly provided with a plurality of loading holes for placing shaft sleeves to be machined. The rotary disc is provided with a supporting plate for supporting the rotary disc and the shaft sleeves to be machined.

[0009] Further, the conveying device comprises a support frame, a first guide rail horizontally arranged on the support frame, a second guide rail vertically arranged on the first guide rail through a sliding block, and a pneumatic cylinder arranged on the second guide rail through a sliding block, and the pneumatic cylinder is provided with a pneumatic cylinder chuck for clamping the shaft sleeve to be machined at one end of the rotary disc, and the support frame is arranged between the rotary disc and the second rotary conveying device.

[0010] Further, the second rotary disc drives the second rotary disc to rotate through the second motor, and the second motor is arranged through the mounting hole on the lathe and is mounted with the second rotary disc.

[0011] Further, the second rotary conveying device further comprises a conveying track arranged below the second rotary disc, and the conveying track is provided with a supporting plate to form an inclined track, and the conveying track is arranged below the overlapping position of the conveying hole and the pneumatic cylinder chuck.

[0012] Further, the oil groove milling device comprises a vertical moving mechanism arranged on the lathe, a third motor arranged on the vertical moving mechanism, and a milling cutter arranged at one end of the third motor, and when one of the conveying holes overlaps with the pneumatic cylinder chuck, the milling cutter is arranged corresponding to the shaft sleeve in the fixed clamp of another conveying hole, and under the control of the vertical moving mechanism, the milling cutter extends into the shaft sleeve to be machined, and under the control of the third motor, the axial oil groove is formed by milling.

[0013] Compared with the prior art, the axial oil groove milling machine provided by the utility model sets the second rotary disc and the positioning device to fix the position during the milling oil groove processing, so that the cumulative error is avoided. Under the control of the second motor, the second rotary disc is stationary when one of the conveying holes overlaps with the pneumatic cylinder chuck, and the position of the installation and machining of the shaft sleeve to be machined is positioned. The arrangement direction of the two positioning grooves is perpendicular to the arrangement direction of the two conveying holes and passes through the center of the second rotary disc. The positioner is provided with a positioning rod, and the positioning rod is perpendicular to the arrangement direction of the two conveying holes. During positioning, the positioning rod in the positioner extends into the positioning groove, so that the extension direction of the positioning groove is parallel to the positioning rod, so that the stationary position of the second rotary disc is corrected. After positioning, the distance between the fixed clamp and the movable clamp is adjusted through the driving pneumatic cylinder to control the clamping and release of the shaft sleeve. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 The structure diagram of the axial oil groove milling machine provided by the utility model is shown.

[0015] Figure 2 For Figure 1 The structure diagram of the second rotary conveying device of the axial milling oil groove machine tool with accurate positioning. DETAILED DESCRIPTION

[0016] The specific embodiments of the utility model will be further described below. It should be understood that the description of the embodiments of the utility model herein is not intended to limit the protection scope of the utility model.

[0017] The terms used herein are intended to explain the embodiments and are not intended to limit and / or limit the utility model. It should be understood that the terms "front", "back", "left", "right", "up", "down" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly used when the utility model product is used, or the orientation or positional relationship commonly understood by those skilled in the art, and are only intended to facilitate the description of the utility model and simplify the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model.

[0018] Please refer to Figures 1 to 2 , which is a structure diagram of an axial milling oil groove machine tool with accurate positioning provided by the utility model. The axial milling oil groove machine tool with accurate positioning comprises a lathe 10, a rotary conveying device 20 arranged on the lathe 10, a second rotary conveying device 30 arranged on the lathe 10, and a milling oil groove device 40 arranged corresponding to the second rotary conveying device 30. It is conceivable that the axial milling oil groove machine tool with accurate positioning also comprises other functional modules, such as transmission structure, etc., which are known to those skilled in the art, and will not be described here.

[0019] The lathe 10 is used to carry the above-mentioned various functional modules, so the lathe 10 is provided with various functional structures, such as screws, bolts, clamps, etc. to complete the installation and assembly of the above-mentioned functional modules, which can be set according to actual needs, and will not be described in detail here.

[0020] The rotary conveying device 20 comprises a rotary disc 21, a motor device 22 arranged between the rotary disc 21 and the lathe 10, and a conveying device 23 arranged on the lathe 10. The rotary disc 21 is uniformly provided with a plurality of loading holes for placing shaft sleeves to be machined, and is provided below with a supporting tray for supporting the rotary disc 21 and the shaft sleeves to be machined. The rotary disc 21 can batch convey the shaft sleeves to be machined. The motor device 22 is used to drive the rotary disc 21 to rotate, so as to convey the shaft sleeves to be machined from the side of the rotary disc 21 away from the second rotary conveying device 30 to the side close to the second rotary conveying device 30, so that the conveying device 23 can carry the shaft sleeves to be machined from the rotary conveying device 20 to the second rotary conveying device 30. The rotary disc 21 and the motor device 22 are general technologies, and will not be described here.

[0021] The conveying device 23 comprises two support frames 231, a first guide rail 232 horizontally arranged on the support frames 231, a second guide rail 233 vertically arranged on the first guide rail 232 through a sliding block, and a pneumatic cylinder 234 arranged on the second guide rail 233 through a sliding block. The support frames 231 are arranged between the rotary disc 21 and the second rotary conveying device 30, the extension direction of the first guide rail 232 is the same as the arrangement direction of the rotary disc 21 and the second rotary conveying device 30, and the first guide rail 232 is used to assist the shaft sleeves to be machined to be conveyed from the rotary disc 21 to the second rotary conveying device 30. The extension direction of the second guide rail 233 is the same as the extension direction of the loading hole, and the second guide rail 233 is used to assist the shaft sleeves to be machined to be taken out from the loading hole. The pneumatic cylinder 234 is provided at one end thereof towards the rotary disc 21 with a pneumatic cylinder chuck 2341 for clamping the shaft sleeves to be machined. The pneumatic cylinder 234 is controlled by an external moving device to move on the first and second guide rails 232, 233, so as to carry the shaft sleeves to be machined from the rotary conveying device 20 to the second rotary conveying device 30. The pneumatic cylinder chuck 2341 is controlled by the pneumatic cylinder 234 to clamp or release the shaft sleeves to be machined from the inside of the shaft sleeve.

[0022] The second rotary conveying device 30 comprises a second rotary disc 31, a second motor 32 arranged between the second rotary disc 31 and the lathe 10, a conveying track 33 arranged below the second rotary disc 31, a positioning device 34 arranged corresponding to the second rotary disc 31, and a clamping device 35 arranged on the second rotary disc 31.

[0023] The second rotary disc 31 is driven to rotate by the second motor 32. The second rotary disc 31 is provided with two central symmetrical transport holes 311 and an installation hole 312 arranged at the center of the second rotary disc 31 and used for connecting the second motor 32. Under the control of the second motor 32, the second rotary disc 31 is stationary when the transport hole 311 coincides with the cylinder chuck 2341, thereby positioning the installation and processing position of the shaft sleeve to be processed.

[0024] The second motor 32 is arranged through the lathe 10 and is installed with the second rotary disc 31 through the installation hole 312.

[0025] The transport track 33 is provided with a supporting plate to form an inclined track. The transport track 33 is arranged below the position where the transport hole 311 coincides with the cylinder chuck 2341, and is used for transporting the shaft sleeve falling from the transport hole 311.

[0026] The positioning device 34 includes two positioning grooves 341 arranged at the edge of the second rotary disc 31 and a positioner 342 arranged at the side of the second rotary disc 31 away from the rotary disc 21. The arrangement direction of the two positioning grooves 341 is perpendicular to the arrangement direction of the two transport holes 311 and passes through the center of the second rotary disc 31. The positioner 342 is provided with a positioning rod 3421, which is perpendicular to the arrangement direction of the two transport holes 311. When one of the transport holes 311 coincides with the cylinder chuck 2341, the positioner 342 is arranged corresponding to the positioning groove 341. During positioning, the positioning rod 3421 extends into the positioning groove 341, so that the extension direction of the positioning groove 341 is parallel to the positioning rod 3421, thereby correcting the stationary position of the second rotary disc 31 and ensuring the product quality control.

[0027] The clamping device 35 includes an installation plate 351 arranged at the center of the second rotary disc 31, four guide rods 352 arranged on the installation plate 351 respectively, a fixed clamp 353 installed on the guide rod 352, a movable clamp 354 installed on the guide rod 352, and a driving cylinder 355 between the installation plate 351.

[0028] Two of the guide rods 352 are arranged on both sides of the mounting plate 351, and two of the guide rods 352 are arranged on both sides of the driving cylinder 355, and the movable clamping head 354 is movably arranged on the guide rods 352. One end of the guide rod 352 is fixed on the mounting plate 351, and the other end is fixed on the fixed clamping head 353. The movable clamping head 354 is movably arranged on the guide rod 352, so that the movable clamping head 354 can move on the guide rod 352. The fixed clamping head 353 and the movable clamping head 354 form a clamping head. The fixed clamping head 353 is fixed on the second rotating disc 31, and the movable clamping head 354 is connected with the driving cylinder 355, so that the distance between the fixed clamping head 353 and the movable clamping head 354 is adjusted by the driving cylinder 355 to control the clamping and release of the shaft sleeve. When the driving cylinder 355 is not started, the fixed clamping head 353 and the movable clamping head 354 are arranged above different transport holes 311.

[0029] The driving cylinder 355 is provided with a transmission rod 3531 connected with the movable clamping head 354. When the driving cylinder 355 is started, the transmission rod 3531 drives one of the movable clamping heads 354 to move towards the mounting hole 312, and the movable clamping head 354 and the fixed clamping head 353 are spaced apart. When the shaft sleeve is installed, the distance between the movable clamping head 354 and the fixed clamping head 353 is greater than or equal to the outer diameter of the shaft sleeve. The cylinder clamping head 2341 moves so that the shaft sleeve is located between the movable clamping head 354 and the fixed clamping head 353, the driving cylinder 355 is closed, and the movable clamping head 354 and the fixed clamping head 353 clamp the shaft sleeve. When the shaft sleeve falls from the transport hole 311, the driving cylinder 355 is opened to make the distance between the movable clamping head 354 and the fixed clamping head 353 greater than the outer diameter of the shaft sleeve, and the shaft sleeve loses the fixation and falls from the clamping head.

[0030] The oil groove milling device 40 comprises a vertical moving mechanism 41 arranged on the lathe 10, a third motor 42 arranged on the vertical moving mechanism 41, and a milling cutter 43 arranged at one end of the third motor 42. The vertical moving mechanism 41 is used to adjust the distance between the milling cutter 43 and the shaft sleeve, so that the milling cutter 43 can approach or move away from the shaft sleeve, thereby processing the shaft sleeve. The third motor 42 is used to control the milling of the milling cutter 43. When one of the transport holes 311 coincides with the cylinder clamping head 2341, the milling cutter 43 is arranged corresponding to the shaft sleeve in the fixed clamping head 353 of another transport hole 311. Under the control of the vertical moving mechanism 41, the milling cutter 43 extends into the shaft sleeve to be processed, and under the control of the third motor 42, the axial oil groove is formed by milling.

[0031] Compared with the prior art, the axial milling oil groove machine tool provided by the utility model sets the second rotary disc 31 and the positioning device 34 to fix the position during milling oil groove processing, so that the cumulative error is avoided. Under the control of the second motor 32, the second rotary disc 31 is static when the transport hole 311 coincides with the air cylinder chuck 2341, and the position of the installation and processing of the shaft sleeve to be processed is positioned. The arrangement direction of the two positioning grooves 341 is perpendicular to the arrangement direction of the two transport holes 311 and passes through the center of the second rotary disc 31. The positioner 342 is provided with a positioning rod 3421, and the positioning rod 3421 is perpendicular to the arrangement direction of the two transport holes 311. During positioning, the positioning rod 3421 in the positioner 342 extends to the positioning groove 341, so that the extension direction of the positioning groove 341 is parallel to the positioning rod 3421, thereby correcting the static position of the second rotary disc 31. After positioning, the distance between the fixed clamp 353 and the moving clamp 354 is adjusted by the driving air cylinder 355 to control the clamping and releasing of the shaft sleeve.

[0032] The above is only the preferred embodiment of the utility model, and is not used for limiting the protection scope of the utility model, and any modification, equivalent replacement or improvement in the spirit of the utility model is covered in the claim range of the utility model.

Claims

1. A machine tool for precisely positioning axial oil groove milling, characterized in that: The precisely positioned axial milling oil groove machine tool includes a lathe and a second rotary transport device mounted on the lathe. The second rotary transport device includes a second rotary table, a second motor positioned between the second rotary table and the lathe, a positioning device corresponding to the second rotary table, and two clamping devices mounted on the second rotary table. The second rotary table has two centrally symmetrical transport holes and a mounting hole at its center. The second motor drives the second rotary table to rotate. The positioning device includes two positioning grooves on the edge of the second rotary table and a positioner. The arrangement direction of the two positioning grooves is perpendicular to the arrangement direction of the two transport holes and passes through the center of the second rotary table. The positioner has a positioning rod perpendicular to the arrangement direction of the two transport holes. During positioning, the positioning rod extends into the positioning groove, making the extension direction of the positioning groove parallel to the positioning rod. The clamping device includes a mounting plate located at the center of the second rotary table, four guide rods respectively mounted on the mounting plate, a fixed clamp mounted on the guide rods, a movable clamp mounted on the guide rods, and a drive cylinder between the mounting plates. Two guide rods are respectively located on each side of the mounting plate. Two guide rods on one side are respectively located on both sides of the cylinder and movably pass through the movable clamp and the fixed clamp. One end of each guide rod is fixed to the mounting plate, and the other end is fixed to the fixed clamp. The movable clamp is movably mounted on the guide rod. The openings of the fixed clamp and the movable clamp are opposite each other to form a clamping head. The fixed clamp is fixed to the second rotary table. When the drive cylinder is not activated, the two fixed clamps are positioned above the transport hole. The movable clamp is connected to the drive cylinder. The drive cylinder has a transmission rod connected to the movable clamp. Adjusting the distance between the fixed clamp and the movable clamp controls the clamping and releasing of the bushing.

2. The axial milling oil groove machine tool with precise positioning as described in claim 1, characterized in that: The precisely positioned axial oil groove milling machine tool also includes a rotary transport device mounted on the lathe, and an oil groove milling device corresponding to the second rotary transport device.

3. The axial milling oil groove machine tool with precise positioning as described in claim 2, characterized in that: The rotary transport device includes a rotary table, a motor device disposed between the rotary table and the lathe, and a transport device disposed on the lathe. The rotary table is evenly provided with a plurality of loading holes for placing bushings to be processed, and a support tray for supporting the rotary table and the bushings to be processed is provided below the rotary table.

4. The axial milling oil groove machine tool with precise positioning as described in claim 3, characterized in that: The transport device includes a support frame, a first guide rail horizontally arranged on the support frame, a second guide rail vertically arranged on the first guide rail via a slider, and a cylinder arranged on the second guide rail via a slider. The cylinder has a cylinder chuck for clamping the bushing to be processed at one end facing the rotary table. The support frame is arranged between the rotary table and the second rotary transport device.

5. The axial milling oil groove machine tool with precise positioning as described in claim 1, characterized in that: The second rotary table is driven to rotate by the second motor, which is installed through the lathe and mounted to the second rotary table through the mounting hole.

6. The axial milling oil groove machine tool with precise positioning as described in claim 4, characterized in that: The second rotary conveyor also includes a conveyor track located below the second rotary table. The conveyor track is supported by a support plate to form an inclined track. The conveyor track is located below the point where the conveyor hole coincides with the cylinder chuck.

7. The axial milling oil groove machine tool with precise positioning as described in claim 4, characterized in that: The oil groove milling device includes a vertical moving mechanism mounted on the lathe, a third motor mounted on the vertical moving mechanism, and a milling cutter mounted at one end of the third motor. When one of the transport holes coincides with the cylinder chuck, the milling cutter is correspondingly positioned with the bushing in the fixed clamp on the other transport hole. Under the control of the vertical moving mechanism, the milling cutter extends into the bushing to be processed and, under the control of the third motor, mills to form an axial oil groove.

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