An automatic alignment device for deep hole boring and turning composite machining center

Abstract

The present invention provides an automatic alignment device for a deep hole boring and turning compound machining center, which relates to the technical field of deep hole machining, and is used to solve the problem that manual correction errors are large, affecting machining accuracy and low efficiency. The automatic alignment device for the deep hole boring and turning compound machining center comprises two alignment mechanisms symmetrically arranged on the two sides of a rotating head frame, and each alignment mechanism comprises a sliding assembly and two screwing assemblies; the sliding assembly is mounted on the side wall of the rotating head frame; the two screwing assemblies are both connected to the sliding assembly, and the two screwing assemblies are spaced apart in a direction parallel to the axis of the rotating head frame. The automatic alignment device for the deep hole boring and turning compound machining center of the present invention can complete the automatic calibration and positioning of the workpiece. Manual correction is no longer required, human errors are avoided, accuracy and efficiency are improved, human resources are saved, and energy conservation and environmental protection are achieved.

Description

Technical Field

[0001] The invention relates to the technical field of deep hole processing, in particular to an automatic alignment device for a deep hole boring and turning composite processing center. Background Art

[0002] The deep hole boring machine is a machine tool that uses a boring cutter to bore the prefabricated holes of the workpiece. It is mainly used to process high-precision holes or complete the rough and fine processing of multiple parts of the inner and outer circles of deep hole parts in one positioning. In addition, it can also be used for processing other processing surfaces related to hole finishing. The deep hole boring machine is the main processing equipment for various deep hole parts, and can process threads, inner and outer circles, and end faces.

[0003] In boring, where the main motion is the rotation of the workpiece and the movement of the tool or workpiece is the feed motion, the workpiece usually needs to be supported, fixed and driven by a rotating headstock. Therefore, the axis of the workpiece needs to coincide with the axis of rotation of the rotating headstock to ensure the machining accuracy. In the prior art, manual correction of the workpiece is used, which may cause errors due to personal subjectivity, affecting the machining accuracy and efficiency of the workpiece and resulting in high labor costs. Summary of the invention

[0004] The purpose of the present invention is to provide an automatic alignment device for a deep hole boring and turning composite machining center, so as to solve the problem that the manual correction error is large and affects the machining accuracy and efficiency.

[0005] The technical solution adopted by the present invention is: an automatic alignment device for a deep hole boring and turning composite machining center, comprising two alignment mechanisms symmetrically arranged on two sides of a rotating head frame, and each alignment mechanism comprises a sliding component and two screwing components; the sliding component is installed on the side wall of the rotating head frame; the two screwing components are both connected to the sliding component, and the two screwing components are spaced apart in a direction parallel to the axis of the rotating head frame;

[0006] When the two alignment mechanisms receive the control signal, the two sliding assemblies slide synchronously in the same direction parallel to the axis of the rotating head frame, so that one of the screwing assemblies in the two alignment mechanisms moves to the working station; the two screwing assemblies located at the working station synchronously screw the two symmetrical supporting claws on the center frame arranged on the rotating head frame, and the screwing directions of the two screwing assemblies are opposite.

[0007] As a further optimization of the solution, the sliding assembly includes a slide plate, a slide rail and a driving assembly; the driving assembly is arranged on the side wall of the rotating head frame and is parallel to the rotation axis of the rotating head frame; the slide rail is arranged on the side wall of the rotating head frame and is parallel to the driving assembly; the slide plate is connected to the driving assembly and the slide rail at the same time, and can slide along the slide rail under the drive of the driving assembly.

[0008] As a further optimization of the solution, the driving assembly includes a driving motor, a screw rod, a nut and a support member; one end of the screw rod is connected to the driving motor and is driven to rotate by the driving motor; the other end of the screw rod is connected to the support member and can rotate inside the support member; the nut is sleeved on the screw rod and moves on the screw rod through a thread; the nut is connected to the slide plate and can drive the slide plate to slide parallel to the rotation axis of the rotating head frame.

[0009] As a further optimization of the solution, the screwing assembly includes a shell, a motor and a sliding member; the sliding member is slidably connected to the shell; an annular groove is opened in the shell, and both ends of the annular groove are connected to oil supply pipes that penetrate the shell; the clamping block of the sliding member is slidably set in the annular groove, and slides in the annular groove under the thrust of oil injection from the oil supply pipe; the motor is set in the shell and connected to the sliding member, and the sliding member can rotate in the shell under the drive of the motor.

[0010] As a further optimization of the solution, a groove matched with the supporting claw is provided at one end of the sliding member facing the supporting claw.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] The present invention provides an automatic alignment device for a deep hole boring and turning composite machining center. After the workpiece is mounted on a rotating head frame, a detection device detects the offset between the end face center of one end of the workpiece and the rotation axis of the rotating head frame, and the data is sent to two alignment mechanisms after processing. The sliding components of the two alignment mechanisms move to the working station at one end of the center frame parallel to the rotation axis of the rotating head frame. At this time, the two symmetrical screwing components synchronously screw the two symmetrical supporting claws. The screwing directions of the two screwing components are opposite, that is, the two symmetrical supporting claws move in the same direction, thereby driving the workpiece to move, so that the midpoint of the line connecting the two symmetrical supporting claws coincides with the vertical direction where the rotation axis of the rotating head frame is located; next, the rotating head frame drives the workpiece to rotate 90°, adjusts the supporting claws in the original vertical direction to the horizontal direction, and repeats the above operation to make the end face center of one end of the workpiece coincide with the rotation axis of the rotating head frame.

[0013] Similarly, the two sliding components move in the opposite direction parallel to the rotation axis of the rotating head frame to the other screwing component of the alignment mechanism and move to the working position at the other end of the center frame. Through the above operation, the supporting claws set on the other end of the center frame are adjusted so that the center of the end face of the other end of the workpiece coincides with the rotation axis of the rotating head frame. A straight line is determined based on the two points, and the axis of the workpiece also coincides with the rotation axis of the rotating head frame, completing the automatic calibration and positioning of the workpiece. There is no need for manual correction, which avoids human errors, improves accuracy and efficiency, saves human resources, and plays a role in energy conservation and environmental protection. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1A schematic diagram of an automatic alignment device for a deep hole boring and turning composite machining center provided by an embodiment of the present invention;

[0015] Figure 2 A schematic diagram of another angle of the automatic alignment device for a deep hole boring and turning composite machining center provided by an embodiment of the present invention;

[0016] Figure 3 A schematic diagram of a drive assembly provided by an embodiment of the present invention;

[0017] Figure 4 A schematic diagram of a screwing assembly provided in an embodiment of the present invention;

[0018] Figure 5 A schematic diagram of a housing provided by an embodiment of the present invention;

[0019] Figure 6 A schematic diagram of a sliding member provided in an embodiment of the present invention;

[0020] Figure 7 A schematic diagram of a supporting claw provided in an embodiment of the present invention;

[0021] Figure 8 A schematic diagram of a detection process provided by an embodiment of the present invention;

[0022] Fig. 9 Another schematic diagram of the detection process provided by the embodiment of the present invention. DETAILED DESCRIPTION

[0023] The present invention is described in detail below in conjunction with the various embodiments shown in the accompanying drawings, but it should be noted that these embodiments are not limitations of the present invention, and any equivalent transformations or substitutions in functions, methods, or structures made by ordinary technicians in the field based on these embodiments are all within the scope of protection of the present invention.

[0024] In the description of this embodiment, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the invention.

[0025] In addition, the terms "first", "second", "third", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0026] The terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the invention can be understood according to specific circumstances.

[0027] This embodiment provides an automatic alignment device for a deep hole boring and turning composite machining center. Please refer to the attached drawings in the specification for details. Figures 1 to 9 .

[0028] Reference Figure 1 to Figure 2 As shown, the automatic alignment device of the deep hole boring and turning composite machining center includes two alignment mechanisms 3 symmetrically arranged on the two sides of the rotating head frame 2, and each alignment mechanism 3 includes a sliding component 31 and two screwing components 32; the sliding component 31 is installed on the side wall of the rotating head frame 2; the two screwing components 32 are both connected to the sliding component 31, and the two screwing components 32 are spaced apart along the axial direction parallel to the rotating head frame 2.

[0029] When the two alignment mechanisms 3 receive the control signal, the two sliding assemblies 31 slide synchronously in the same direction parallel to the axis of the rotating head frame 2, so that one of the screwing assemblies 32 of the two alignment mechanisms 3 moves to the working station; the two screwing assemblies 32 located at the working station synchronously screw the two symmetrical supporting claws 231 on the center frame 23 arranged on the rotating head frame 2, and the screwing directions of the two screwing assemblies 32 are opposite.

[0030] The present invention provides an automatic alignment device for a deep hole boring and turning composite machining center. After a workpiece 4 is mounted on a rotating head frame, a detection device 5 detects the offset between the end face center of one end of the workpiece 4 and the rotation axis of the rotating head frame 2, and the data is sent to two alignment mechanisms 3 after being processed. The sliding components 31 of the two alignment mechanisms 3 move to the working station at one end of the center frame 23 in parallel with the rotation axis direction of the rotating head frame 2. At this time, two symmetrical screwing components 32 synchronously screw two symmetrical supporting claws 231, and the screwing directions of the two screwing components 32 are opposite, that is, the two symmetrical supporting claws 231 move in the same direction, thereby driving the workpiece 4 to move, so that the midpoint of the line connecting the two symmetrical supporting claws 231 coincides with the vertical direction where the rotation axis of the rotating head frame 2 is located; next, the rotating head frame 2 drives the workpiece 4 to rotate 90°, adjusts the supporting claws 231 in the original vertical direction to the horizontal direction, and repeats the above operation, so that the end face center of one end of the workpiece 4 coincides with the rotation axis of the rotating head frame 2.

[0031] Similarly, the two sliding components 31 move in the opposite direction parallel to the rotation axis of the rotating head frame 2 to the other screwing component 32 of the alignment mechanism 3 and move to the working position at the other end of the center frame 23. Through the above operation, the supporting claw 231 set on the other end of the center frame 23 is adjusted so that the end face center of the other end of the workpiece 4 coincides with the rotation axis of the rotating head frame 2. A straight line is determined based on the two points, and the axis of the workpiece 4 also coincides with the rotation axis of the rotating head frame 2, completing the automatic calibration and positioning of the workpiece. There is no need for manual correction, which avoids human errors, improves accuracy and efficiency, saves human resources, and plays a role in energy saving and environmental protection.

[0032] Reference Figures 8 to 9 As shown, the specific detection and control process is as follows:

[0033] The detection device 5 is disposed on the bed 1 or the rotating head frame 2 and is located on the rotation axis of the rotating head frame 2. The detection device 5 may be, but is not limited to, a distance sensor.

[0034] The detection device 5 measures that the straight-line distance from the position of the workpiece 4 clamped by the supporting claw 231 screwed by one screwing assembly 32 to the detection device 5 is a; the straight-line distance from the position of the workpiece 4 clamped by the supporting claw 231 screwed by another symmetrical screwing assembly 32 to the detection device 5 is b; and the displacement distance from the detection device 5 to the plane on the center frame 21 corresponding to the supporting claw 231 to be calibrated is c. Then the offset of the workpiece 4 is The detection device 5 sends a control signal to the alignment mechanism 3. The two symmetrical screwing components 32 have a screwing amount corresponding to the workpiece position at a distance a from the detection device 5. The screwing amount of the screwing assembly 32 corresponding to the workpiece position at a distance b from the detection device 5 is The workpiece 4 after being screwed is symmetrical with respect to the rotation axis of the rotating head 2 .

[0035] The rotating head frame 2 drives the center frame 21 to rotate 90°, so that the supporting claw 231 in the vertical direction rotates to the horizontal direction, and the screwing assembly 32 is controlled by the above method to continue to adjust the position of the workpiece 4. After two mutually perpendicular adjustments, the center of the end face of one end of the workpiece 4 is displaced to coincide with the rotation axis of the rotating head frame 2.

[0036] Similarly, continue to adjust the end face of the other end of the workpiece 4.

[0037] The detection device 5 detects inwards, and the straight-line distance from the position of the workpiece 4 clamped by the supporting claw 231 screwed by a screwing assembly 32 at the other end of the workpiece 4 to the detection device 5 is a'; the straight-line distance from the position of the workpiece 4 clamped by the supporting claw 231 screwed by another symmetrical screwing assembly 32 to the detection device 5 is b'; the displacement distance from the detection device 5 to the plane where the supporting claw 231 on the center frame 21 that needs to be calibrated is c'. The offset of the other end of the workpiece is The detection device 5 sends a control signal to the alignment mechanism 3. The two symmetrical screwing components 32 have a screwing amount corresponding to the workpiece position at a distance a' from the detection device 5. The screwing amount of the screwing assembly 32 corresponding to the workpiece position at a distance b' from the detection device 5 is The other end of the workpiece 4 after being screwed is symmetrical with respect to the rotation axis of the rotating head frame 2 .

[0038] The rotating head frame 2 drives the center frame 21 to rotate 90°, so that the supporting claw 231 in the vertical direction rotates to the horizontal direction, and the screwing assembly 32 is controlled by the above method to continue to adjust the position of the other end of the workpiece 4. After two mutually perpendicular adjustments, the center of the end face of the other end of the workpiece 4 is displaced to coincide with the rotation axis of the rotating head frame 2.

[0039] A straight line is determined based on the two points. The centers of the end faces at both ends of the workpiece 4 coincide with the rotation axis of the rotating head frame 2 . Then, the axis of the workpiece 4 coincides with the rotation axis of the rotating head frame 2 .

[0040] Reference Figures 1 to 3 As shown, the sliding assembly 31 includes a slide plate 311, a slide rail 312 and a driving assembly 313. The driving assembly 313 is arranged on the side wall of the rotating head frame 2 and is parallel to the rotation axis of the rotating head frame 2; the slide rail 312 is arranged on the side wall of the rotating head frame 2 and is parallel to the driving assembly 313; the slide plate 311 is connected to the driving assembly 313 and the slide rail 312 at the same time, and can slide along the slide rail 312 under the drive of the driving assembly 313.

[0041] The sliding assembly 31 is used to drive the screwing assembly 21 to move to the working position. The working position of the screwing assembly 32 corresponds to the supporting claw 231 in a horizontal state. The symmetrical supporting claw 231 is symmetrical with respect to the rotation axis of the rotating head frame 2 and is located in the same horizontal plane as the rotation axis of the rotating head frame 2. The driving assembly 313 and the slide rail 312 are both parallel to the rotation axis of the rotating head frame 2, so the slide plate 311 slides along the slide rail 312 driven by the driving assembly 313, and is also parallel to the rotation axis of the rotating head frame 2. The height setting of the two symmetrically arranged screwing assemblies 32 is at the same horizontal height as the rotation axis of the rotating head frame. Therefore, the two sliding ends of the screwing device 32 just reach the working position. The slide rail 312 can increase the stability of the sliding assembly 31 during the movement.

[0042] Reference Figure 3 As shown, the driving assembly 313 includes a driving motor 3131, a screw rod 3132, a nut 3133 and a support member 3134. One end of the screw rod 3132 is connected to the driving motor 3131 and is driven to rotate by the driving motor 3131, and the other end of the screw rod 3132 is connected to the support member 3134 and can rotate in the support member 3134. The nut 3133 is sleeved on the screw rod 3132 and moves on the screw rod 3132 through a thread. The nut 3133 is connected to the slide plate 311 and can drive the slide plate 311 to slide parallel to the rotation axis of the rotating head frame 2.

[0043] One end of the lead screw 3132 is connected to the driving motor 3131, that is, it is driven to rotate by the driving motor 3131. The other end of the lead screw 3132 is connected to the support member 3132. A bearing is provided in the support member 3132. The bearing sleeve is arranged on the lead screw 3132 to support the rotation of the lead screw 3132. The nut 3133 is sleeved on the lead screw 3132. When the lead screw 3132 rotates, the nut 3133 moves through the thread. The nut 3133 is connected to the slide plate 311, thereby driving the slide plate 311 to move. The cooperation between the nut 3133 and the lead screw 3132 has a simple structure and is easy to disassemble. Of course, the specific structure of the drive assembly 313 is not limited to the following. Figure 3 The above description is not limiting, and the embodiments may also be gear racks, conveyor belts, etc.

[0044] Reference Figures 4 to 7As shown, the screwing assembly 32 includes a housing 321, a motor 322 and a sliding member 323. The sliding member 323 is slidably connected to the housing 321. An annular groove 3211 is provided in the housing 321. Both ends of the annular groove 3211 are connected to oil delivery pipes 3212 that penetrate the housing 321. The block of the sliding member 323 is slidably arranged in the annular groove 3211, and slides in the annular groove 3211 under the thrust of oil injection from the oil delivery pipe 3212. The block is located between two oil delivery pipes 3212. One of the oil delivery pipes 3212 is injected with hydraulic oil, and the other oil delivery pipe 3212 is discharged with hydraulic oil, so that the sliding member 323 slides in the annular groove 3211. The motor 322 is arranged in the housing 321 and connected to the sliding member 323. The sliding member 323 can rotate in the housing 321 under the drive of the motor 322. One end of the sliding member 323 facing the supporting claw 231 is formed with a groove 3231 adapted to the supporting claw 231 .

[0045] After the screwing assembly 32 reaches the working station, the supporting claw 231 needs to be screwed. The sliding member 323 slides toward the supporting claw 231 under the pressure of the hydraulic oil injected from the oil delivery pipeline 3212 away from the supporting claw 231 until the groove 3231 of the sliding member 323 is engaged with the rotating screw 2312 of the supporting claw 231. The connecting rod of the motor 322 is connected to the sliding member 323. The sliding member 323 can rotate in the annular groove 3211 under the drive of the motor 322, thereby driving the rotating screw 2312 engaged with the sliding member 323 to rotate. The supporting claw 231 includes a housing 2311, a rotating screw 2312 and a top block 2313. The top block 2313 is arranged in the housing 2311 and can slide along the inner wall of the housing 2311; the rotating screw 2312 and the top block 2313 are connected by threads, and the rotating screw 2312 can drive the top block 2313 to slide when it rotates. The two screwing assemblies 32 are arranged to screw in opposite directions. The motor 322 receives a control instruction to drive the screw rod 2312 to rotate a specified number of times. The top block 2313 slides a specified distance. The top block 2313 of one supporting claw 231 slides inward, and the top block 2313 of the symmetrical supporting claw 231 slides outward, and the sliding distance is the same, thereby realizing the correction of the workpiece 4.

[0046] After the calibration is completed, the motor 322 stops rotating, hydraulic oil is injected into the oil supply pipe 3212 on the housing 321 close to the supporting claw 231, and the hydraulic oil is discharged from the oil supply pipe 3212 away from the supporting claw 231. Under the thrust of the hydraulic oil, the sliding member 323 slides inward along the annular groove 3211, disengages from the rotating screw 2312 of the supporting claw 231, and waits for the next calibration.

[0047] The series of detailed descriptions listed above are only specific descriptions of feasible implementation methods of the present invention. They are not intended to limit the scope of protection of the present invention. Any equivalent implementation methods or changes that do not deviate from the technical spirit of the present invention should be included in the scope of protection of the present invention.

[0048] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0049] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An automatic alignment device for a deep hole boring and turning composite machining center, characterized in that: It comprises two alignment mechanisms (3) symmetrically arranged on two side surfaces of a rotating head frame (2), and each alignment mechanism (3) comprises a sliding component (31) and two screwing components (32); The sliding assembly (31) is mounted on a side wall of the rotating head frame (2); the two screwing assemblies (32) are both connected to the sliding assembly (31), and the two screwing assemblies (32) are arranged at intervals along a direction parallel to the axis of the rotating head frame (2); The detection device (5) detects the offset between the center of the end face of one end of the workpiece (4) and the rotation axis of the rotating head frame (2), and the data is sent to the two alignment mechanisms (3) after being processed; When the two alignment mechanisms (3) receive a control signal, the two sliding components (31) slide synchronously in the same direction parallel to the axis of the rotating head frame (2), so that one of the screwing components (32) in the two alignment mechanisms (3) moves to a working position; the two screwing components (32) located at the working position screw synchronously two symmetrical supporting claws (231) on a center frame (23) provided on the rotating head frame (2), and the screwing directions of the two screwing components (32) are opposite; The screwing assembly (32) comprises a housing (321), a motor (322) and a sliding member (323); the sliding member (323) is slidably connected to the housing (321); an annular groove (3211) is provided in the housing (321), and both ends of the annular groove (3211) are connected to an oil supply pipeline (3212) that passes through the housing (321); a block of the sliding member (323) is slidably arranged in the annular groove (3211), and slides in the annular groove (3211) under the thrust of oil injection from the oil supply pipeline (3212); the motor (322) is arranged in the housing (321) and is connected to the sliding member (323); the sliding member (323) can rotate in the housing (321) under the drive of the motor (322).

2. The automatic alignment device for deep hole boring and turning composite machining center according to claim 1 is characterized in that: The sliding assembly (31) comprises a slide plate (311), a slide rail (312) and a driving assembly (313); the driving assembly (313) is arranged on the side wall of the rotating head frame (2) and is parallel to the rotation axis of the rotating head frame (2); the slide rail (312) is arranged on the side wall of the rotating head frame (2) and is parallel to the driving assembly (313); the slide plate (311) is connected to the driving assembly (313) and the slide rail (312) at the same time, and can slide along the slide rail (312) under the drive of the driving assembly (313).

3. The automatic alignment device for deep hole boring and turning combined machining center according to claim 2 is characterized in that: The driving assembly (313) comprises a driving motor (3131), a screw rod (3132), a nut (3133) and a supporting member (3134); one end of the screw rod (3132) is connected to the driving motor (3131) and is driven to rotate by the driving motor (3131); the other end of the screw rod (3132) is connected to the supporting member (3134) and is capable of rotating inside the supporting member (3134); the nut (3133) is sleeved on the screw rod (3132) and moves on the screw rod (3132) via a thread; the nut (3133) is connected to the slide plate (311) and is capable of driving the slide plate (311) to slide parallel to the rotation axis of the rotating head frame (2).

4. The automatic alignment device for a deep hole boring and turning composite machining center according to claim 1 is characterized in that: One end of the sliding member (323) facing the supporting claw (231) is provided with a groove (3231) adapted to the supporting claw.

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