Supporting device for power tool turret

Abstract

The utility model discloses a supporting device for a power tool turret, relates to the technical field of machine tool parts, and is used for solving the problems that the positioning accuracy is influenced by the deformation of the power tool turret parts and the positioning and calibration operation efficiency of a cutter head is low. According to the utility model, the centering reference disc, the supporting thrust oil cylinder, the rotary matching barrel, the supporting sleeve, the first rotating seat and the second rotating seat are arranged, so that the centering adjustment of the cutter head and the cutter head mounting barrel is changed from the traditional elastic deformation reduction offset for adjusting the clamping fastening degree to the use displacement reduction offset; the efficiency and the precision of centering calibration operation of the power tool turret are improved; the positioning error of the tool turret can be compensated, meanwhile, the positioning precision loss caused by structural deformation of the power tool turret can be quickly and automatically calibrated and timely compensated, and the control effect and the use efficiency of the power tool turret are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of machine tool parts, in particular to a supporting device for a power turret. Background Art

[0002] The power turret is an automatic tool changing device for turning machine tools. It has its own power source and can operate the tool independently. CNC turrets are mainly divided into two categories: electric and hydraulic. The driving power of electric turrets is the motor, and the power source of hydraulic turrets is the power provided by the hydraulic oil pump. Both the motor and the hydraulic oil will generate a lot of heat. The heat is very high during the use of the machine tool, especially in CNC machining, which usually uses digital information to directly control the movement of the machine tool for machining. During the tool change and tool holder machining process, the transmission of mechanical motion will produce errors under the action of thermal deformation, and the bending and torsional deformation under the influence of the weight of the turret components themselves will still affect the turret movement accuracy, thereby affecting the machining accuracy.

[0003] Usually during the use of a power turret, it is often necessary to calibrate and position the power turret due to various reasons such as vibration, impact and thermal deformation. The traditional power turret cutter head support structure is relatively fixed. The traditional cutter head support method usually adopts a highly versatile and replaceable fixed parameter parts for assembly and fixation. After assembly, the position adjustment can only be calibrated within a small range. When the processing accuracy is further damaged, the parts can only be replaced or even reassembled and calibrated. In addition, during use, the maintenance and positioning calibration operations of the turret's cutter head and tool holder, etc., mostly rely on manual operation, and the calibration accuracy and efficiency are poor.

[0004] In the prior art, there are some cases where the overall rigidity and clamping strength of the power tool turret are improved by improving the compactness of the structure. For example, Taiwan Invention Patent TW202344323A discloses a power tool turret with a built-in motor. The power tool turret has a connecting unit in the form of a hollow tube with a connecting channel formed therein. The motor unit is relatively accommodated in the connecting unit. The motor unit has a transmission shaft, and the motor unit is connected to the spindle module via its transmission shaft to drive the spindle module. In this invention patent, the transmission routes of the tool drive mechanism and the tool changer drive mechanism are highly concentrated, which easily leads to heat accumulation and deformation of components, affecting processing accuracy. The power tool turret calibration operation is relatively cumbersome, and it is easy for the adjustment of parameters to affect the accuracy of other non-adjustable parts.

[0005] For example, Taiwan invention patent TW202204067A discloses a power tool turret device, which moves the engagement piece towards the tool turret body, moves the engagement piece towards the seat body to stabilize the tool turret body, and then drives the inner shaft to rotate by the inner shaft power source, thereby driving the machining tools to rotate, so as to perform different cutting operations on the workpiece. In the invention patent, the stability is improved by installing the cutter head mounting neck fixture inside the tool turret box, and the precision reduction caused by excessive wear is reduced. However, the calibration operation of the cutter head will directly transmit the clamping calibration force to the cutter head neck fixture and the rotating body, which is easy to apply extrusion stress to the support part, and the precision reduction caused by deformation may not be compensated accurately. SUMMARY

[0006] The utility model discloses a support device for power tool turret to solve the problem of power tool turret part deformation affecting positioning accuracy and low efficiency of cutter head positioning calibration operation.

[0007] To solve the above technical problems, the utility model provides the following technical scheme:

[0008] The support device for power tool turret includes a tool turret box, a receiving and mounting cavity is arranged in the tool turret box, a tool changing motor and a tool motor are arranged at the right end of the tool turret box, a cutter head is rotatably connected to the left end of the tool turret box, a power tool seat is arranged on the cutter head, a cutter head mounting neck is rotatably connected to the left end of the tool turret box, a centering reference disc is fixedly connected in the cutter head mounting neck, a cutter head mounting cylinder is arranged in the centering reference disc, a plurality of uniformly distributed support and advancing oil cylinders are fixedly connected to the inner wall of the centering reference disc, the lower end of the support and advancing oil cylinders is slidably connected to the cutter head mounting cylinder through a jaw, a gap is arranged between the cutter head mounting cylinder and the centering reference disc, and the power tool seat is fixedly connected to the left end of the cutter head mounting cylinder.

[0009] Preferably, a first rotating seat is fixedly connected to each of the front and rear end walls of the receiving and mounting cavity, a support sleeve is rotatably connected between the two first rotating seats, and two second rotating seats symmetrically arranged above and below the support sleeve are fixedly connected to the inner wall of the support sleeve.

[0010] Preferably, the line connecting the two second rotating seats is perpendicular to the line connecting the two first rotating seats, a rotating matching cylinder is rotatably connected between the two second rotating seats, two matching bearings distributed left and right are fixedly connected in the rotating matching cylinder, and the cutter head mounting cylinder is rotatably connected in the two matching bearings.

[0011] The supporting thrust cylinder cooperates with the adjustment of the displacement of the cutter disc mounting cylinder and the power tool holder to compensate for the positioning error of the turret. At the same time, it can quickly and automatically calibrate and timely compensate for the positioning accuracy loss caused by the deformation of the power turret structure, reducing the turret positioning on the accuracy requirements of the machine tool guide rail and improving the control effect and utilization efficiency of the power turret.

[0012] Preferably, a tool changing spindle is provided in the storage and mounting cavity, the left end face of the tool changing motor is connected to the tool changing spindle by power, the left end face of the tool changing spindle is fixedly connected to a universal joint, the left end face of the universal joint is fixedly connected to a changing seat, and the left end of the changing seat is fixedly connected to the tool disc mounting cylinder, which can avoid the movement of the power turret positioning calibration interfering with the power transmission, thereby improving the stability and reliability of the power turret calibration movement.

[0013] Preferably, a tool drive spindle and a drive gear are provided in the storage and installation cavity, the left end of the tool motor is connected to the tool drive spindle by power, the left end face of the tool drive spindle is fixedly connected to the drive gear, a driven gear is provided in the storage and installation cavity, the driven gear and the drive gear are meshed with each other for transmission, and a clutch block is slidably connected in the driven gear. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the embodiments or the description of the prior art. Obviously, the drawings described below are merely exemplary, and those skilled in the art can derive other implementation drawings based on the provided drawings without inventive effort.

[0015] Figure 1 This is a schematic diagram of the overall assembly of the support device for the power turret of the utility model;

[0016] Figure 2 This is a top view schematic diagram of the support device for the power turret of the utility model;

[0017] Figure 3 This is a schematic front view of a support device for a power turret according to the present invention;

[0018] Figure 4 yes Figure 2 Schematic diagram of the internal structure;

[0019] Figure 5 yes Figure 4 A partial enlarged schematic diagram of point A in the middle;

[0020] Figure 6 This is a schematic diagram of the internal structure of the turret box;

[0021] Figure 7 yes Figure 6 A cross-sectional schematic diagram;

[0022] Figure 8 yes Figure 6 Schematic diagram of the assembly relationship at the middle cutter disc mounting cylinder;

[0023] Figure 9 yes Figure 7 A partial enlarged schematic diagram of point B in the middle;

[0024] Figure 10 yes Figure 6 Schematic diagram of CC cross-section in .

[0025] Figure numbers: turret box 10; tool changing motor 11; tool motor 12; cutter disc 13; power tool holder 14; cutter disc mounting neck 15; storage mounting cavity 16; centering reference plate 17; support propulsion cylinder 18; tool drive spindle 30; drive gear 31; driven gear 32; clutch block 33; connecting cylinder 34; clutch connecting block 35; clutch cylinder 36; cover 37; cutter disc mounting cylinder 50; rotating matching cylinder 51; matching bearing 52; support sleeve 53; first rotating seat 54; shrinkage connecting flange 55; switching seat 56; universal joint 57; tool changing spindle 58; second rotating seat 59. DETAILED DESCRIPTION

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] The following first describes the concepts involved in this application with reference to the accompanying drawings. It should be noted that the following description of each concept is intended only to make the content of this application easier to understand and does not limit the scope of protection of this application. At the same time, the embodiments and features in the embodiments of this application can be combined with each other unless there is a conflict. The following detailed description of this application will be made with reference to the accompanying drawings and in conjunction with the embodiments.

[0028] Example 1

[0029] Refer to the attached Figure 4 , Attachment Figure 8 And attached Figure 9The utility model provides a support device for power cutter tower, including cutter tower box 10, be equipped with the accommodation installation cavity 16 in cutter tower box 10, the accommodation installation cavity 16 can adopt multiple side plate package and become to adapt to cutter tower spare part installation space reasonable distribution, cutter tower box 10 right -hand member is equipped with tool changing motor 11 and cutter motor 12, and tool changing motor 11 and cutter motor 12 can be accommodated and package in cutter tower box 10 inside, cutter tower box 10 left end is rotatably connected with cutter head 13, and cutter head 13 is fixedly connected in cutter head installation cylinder 50 left end by detachable mode, be equipped with power tool seat 14 on cutter head 13, and the installation position of power tool seat 14 and the driving position of cutter motor 12 correspond with each other, and cutter tower box 10 left end is rotatably connected with cutter head installation neck 15, and cutter head installation neck 15 is rotatably connected in cutter head installation neck 15 left end wall through traditional bearing and sealing structure, and fixedly connected with the centring reference disc 17 in cutter head installation neck 15, and cutter head installation neck 15 is fixedly connected with the centring reference disc 17 on the inner wall according to size specification using the traditional connection mode of suitable size flange, and be equipped with cutter head installation cylinder 50 in the centring reference disc 17, and fixedly connected with a group of equidistribution support advance oil cylinder 18 on the inner wall of the centring reference disc 17, and the lower end of support advance oil cylinder 18 is slidably connected with cutter head installation cylinder 50 through the pawl, and the control circuit of support advance oil cylinder 18 left end extends to the left end face of the centring reference disc 17, and cutter head installation neck 15 left end stretches out the length and covers the centring reference disc 17 and adapts to install sealing structure, and the inner wall passes through the recess positioning installation support advance oil cylinder 18, and the control circuit of support advance oil cylinder 18 extends to the left end face of the centring reference disc 17 through the through -hole, can conveniently provide control connection when cutter tower calibration maintenance, and there is a gap between cutter head installation cylinder 50 and the centring reference disc 17, and cutter head installation cylinder 50 left end is fixedly connected with power tool seat 14;

[0030] When the position of cutter head installation cylinder 50 is adjusted for calibration by controlling support advance oil cylinder 18, the oil circuit pressure of support advance oil cylinder 18 equidistributed on the inner wall of the centring reference disc 17 is controlled, a single support advance oil cylinder 18 is driven to elongate, the pawl fixed at the lower end of support advance oil cylinder 18 is pushed to move cutter head installation cylinder 50 in the gap under the drive of support advance oil cylinder 18, the axial thrust provided by support advance oil cylinder 18 drives cutter head installation cylinder 50 to displace in its radial direction, and the range of displacement is less than the preset gap width between cutter head installation cylinder 50 and the centring reference disc 17, after the radial direction position of cutter head installation cylinder 50 is adjusted, a support advance oil cylinder 18 on the opposite side of the support advance oil cylinder 18 that calibrates the radial offset of cutter head installation cylinder 50 is started to elongate, the pawl is extruded on the outer wall of cutter head installation cylinder 50 to push the position of cutter head installation cylinder 50 after radial offset adjustment, and then the pressure in the two support advance oil cylinders 18 is locked to maintain the calibration state in this direction;

[0031] Then start another set of supporting propulsion cylinders 18, and calibrate the offset of the other matching vertical calibrated displacement direction in the radial plane of the cutter disc mounting cylinder 50. At this time, the cutter disc mounting cylinder 50 with the calibrated limit can slide locally on the limit claw to adapt to the radial offset adjustment in the other direction, thereby completing the centering offset calibration of the cutter disc mounting cylinder 50. In this process, the calibration of the cutter disc mounting cylinder 50 is mainly the change in displacement. The extrusion deformation of the cutter disc mounting cylinder 50 and the elastic deformation provided by its own toughness can be compensated by the adjustment of the position offset. The centering adjustment of the cutter disc 13 and the cutter disc mounting cylinder 50 can be replaced by the traditional elastic deformation reduction offset of adjusting the clamping tightness to the use of displacement reduction offset. The centering calibration accuracy is higher, and the extrusion and surface damage to the power turret structure itself are smaller. It has better adaptability to traditional support structures, can increase the service life of the power turret, and improve the efficiency and accuracy of the power turret centering calibration operation.

[0032] A first rotating seat 54 is fixedly connected to the front and rear end walls of the storage and installation cavity 16 respectively. A support sleeve 53 is rotatably connected between the two first rotating seats 54. Two second rotating seats 59 symmetrical in upper and lower directions are fixedly connected to the inner wall of the support sleeve 53.

[0033] Refer to the attached Figure 6 , Attachment Figure 7 , Attachment Figure 8 And attached Figure 10 As shown, the line connecting the two second rotating seats 59 and the line connecting the two first rotating seats 54 are perpendicular to each other. A rotating matching cylinder 51 is rotatably connected between the two second rotating seats 59. Two matching bearings 52 distributed on the left and right are fixedly connected in the rotating matching cylinder 51. The two matching bearings 52 are rotatably connected in the cutter head mounting cylinder 50.

[0034] The left end wall of the storage and installation cavity 16 is connected to the cutter disc installation cylinder 50 through the centering reference disk 17 and the supporting propulsion cylinder 18. The right end of the cutter disc installation cylinder 50 is located in the storage and installation cavity 16. The right end of the cutter disc installation cylinder 50 is connected to the rotating matching cylinder 51 through two matching bearings 52. The rotating matching cylinder 51 rotates coaxially with the cutter disc installation cylinder 50. The rotating matching cylinder 51 is connected to the support sleeve 53 through two second rotating seats 59 distributed up and down. The support sleeve 53 is connected to the side walls of the storage and installation cavity 16 in the front and rear directions through two first rotating seats 54 distributed front and back. When the supporting propulsion cylinder 18 at the left end of the cutter disc installation cylinder 50 pushes the cutter disc installation cylinder 50 to perform centering offset calibration, the two second rotating seats 59 can cooperate to allow the rotating matching cylinder 51 and the cutter disc installation cylinder 50 to deflect around the connecting line of the two second rotating seats 59. At the same time, the two first rotating seats 54 allow the support sleeve 5 3. The rotating matching cylinder 51 and the cutter disc mounting cylinder 50 are deflected as a whole around the line connecting the two first rotating seats 54, so that when the supporting propulsion cylinder 18 pushes the cutter disc mounting cylinder 50 to calibrate the centering offset, the axial direction of the cutter disc mounting cylinder 50 is swung following the calibration offset. In this process, the centering calibration only rigidly moves the cutter disc mounting cylinder 50 to adjust the axial position. The two first rotating seats 54 and the supporting propulsion cylinder 18 cooperate to support the cutter disc mounting cylinder 50, and then support the power tool holder 14 to perform synchronous movement to complete the calibration and positioning processing action. The supporting propulsion cylinder 18 cooperates to adjust the displacement of the cutter disc mounting cylinder 50 and the power tool holder 14 to compensate for the positioning error of the turret, and can quickly and automatically calibrate and timely compensate for the positioning accuracy loss caused by the deformation of the power turret structure, reducing the accuracy requirements of the turret positioning on the machine tool guide rail, and improving the control effect and utilization efficiency of the power turret.

[0035] Refer to the attached Figure 6 To the attached Figure 8 As shown, a tool changing spindle 58 is provided in the storage and installation cavity 16, and the left end face of the tool changing motor 11 is connected to the tool changing spindle 58 by power, and the left end face of the tool changing spindle 58 is fixedly connected to a universal joint 57, and the left end face of the universal joint 57 is fixedly connected to a changing seat 56, and the left end of the changing seat 56 is fixedly connected to the cutter disc mounting cylinder 50. The cutter disc mounting cylinder 50 can be equipped with a shrinkage connection flange 55 for connecting the changing seat 56 and the universal joint 57 according to the requirements of the inner diameter size and the space allocation of the storage and installation cavity 16. The universal joint 57 can adapt to the axial direction changed by calibration of the power tool seat 14 and the cutter disc mounting cylinder 50 and connect the power, so as to avoid the motion interference of the power turret positioning calibration with the power transmission, thereby improving the stability and reliability of the power turret calibration motion.

[0036] Refer to the attached Figure 1 To the attached Figure 5As shown, a tool drive spindle 30 and a drive gear 31 are provided in the storage and installation cavity 16, the left end of the tool motor 12 is poweredly connected to the tool drive spindle 30, and the left end face of the tool drive spindle 30 is fixedly connected to the drive gear 31, and a driven gear 32 is provided in the storage and installation cavity 16, and the driven gear 32 and the drive gear 31 are meshed and transmitted with each other, and a clutch block 33 is slidably connected in the driven gear 32, and a cover 37 is fixedly connected to the left end wall of the storage and installation cavity 16, and the cover 37 is provided with an opening corresponding to the position of the clutch block 33, and the right end face of the clutch block 33 is rotatably connected to the connecting cylinder 34, and the right end of the driven gear 32 is slidably connected to the connecting cylinder 34, and a clutch cylinder 36 is fixedly connected in the lower end wall of the storage and installation cavity 16, and the left end face of the clutch cylinder 36 is poweredly connected to the clutch connecting block 35, and the left end face of the clutch connecting block 35 is rotatably connected to the connecting cylinder 34;

[0037] The tool motor 12 drives the tool drive spindle 30 to drive the driven gear 32 to rotate through the driving gear 31, and the clutch cylinder 36 drives the clutch connecting block 35 to retract and extend, driving the clutch connecting block 35 and the connecting cylinder 34 to slide in the axial direction of the driven gear 32, thereby driving the clutch block 33 to slide left and right in the driven gear 32 to control the clutch of the power connection between the driven gear 32 and the power tool holder 14. The clutch block 33 is connected to the tool on the power tool holder 14 through the opening on the cover 37, thereby completing the clutch control of the tool movement drive installed on the power tool holder 14. After the power tool holder 14 is installed at different positions on the tool disc 13, the tool change motor 11 can be used to start the tool disc 13 to rotate and drive the power tool holder 14 to shift to the clutch position that cooperates with the clutch block 33 to receive the processing drive power to complete the power turret processing operation.

[0038] Example 2

[0039] Refer to the attached Figure 1 To the attached Figure 4As shown, the tool changing motor 11 and the tool motor 12 at the right end of the turret box 10 are installed on the outside of the turret box 10 for easy disassembly and maintenance. In addition, the tool changing motor 11 and the tool motor 12 can be replaced by a hydraulic pump or the like to provide hydraulic power; the control circuit of the support propulsion cylinder 18 can also be set on the right end surface of the centering reference plate 17 inside the storage and installation cavity 16. Since the working positions of the turret box 10 and the tool holder are fixed by indexing, a control disk adapted to the connection of the control circuit of the support propulsion cylinder 18 can be fixed on the left end wall inside the storage and installation cavity 16. When the cutter disc needs to be calibrated, the docking port on the control disk is pushed by oil pressure to dock with the control circuit of the support propulsion cylinder 18. When calibration is not required, the turret box 10 is separated and does not interfere with the synchronous rotation of the centering reference plate 17 and the support propulsion cylinder 18, thereby integrating the control adjustment of the support propulsion cylinder 18 inside the storage and installation cavity 16, and fixing the layout position of the hydraulic pipeline. When controlling the support propulsion cylinder 18, only the switch drive is required, which can reduce the control docking operation process during the maintenance and calibration process, thereby improving the efficiency of the calibration and maintenance work.

[0040] The embodiments and / or implementation methods described above are only used to illustrate the preferred embodiments and / or implementation methods for realizing the technology of the present invention, and do not impose any form of limitation on the implementation methods of the technology of the present invention. Any person skilled in the art may make slight changes or replace them with other equivalent embodiments without departing from the scope of the technical means disclosed in the content of the present invention, but they should still be regarded as technologies or embodiments that are essentially the same as the present invention.

[0041] This article uses specific examples to illustrate the principles and implementation methods of this application. The description of the above embodiments is only used to help understand the method and core ideas of this application. The above is only the preferred implementation method of this application. It should be pointed out that due to the limitations of textual expression, there are objectively infinite specific structures. For ordinary technicians in this technical field, without departing from the principles of this application, they can also make several improvements, modifications or changes, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the inventive concept and technical solution to other occasions without improvement, should be regarded as the scope of protection of this application.

Claims

1. A support device for a power turret, comprising a turret box (10), wherein a storage and mounting cavity (16) is provided in the turret box (10), a tool change motor (11) and a tool motor (12) are provided at the right end of the turret box (10), a tool disc (13) is rotatably connected to the left end of the turret box (10), and a power tool holder (14) is provided on the tool disc (13), characterized in that: The left end of the turret box (10) is rotatably connected to a cutter disc mounting neck (15), a centering reference disk (17) is fixedly connected inside the cutter disc mounting neck (15), a cutter disc mounting cylinder (50) is provided inside the centering reference disk (17), a group of evenly distributed supporting propulsion cylinders (18) are fixedly connected to the inner wall of the centering reference disk (17), the lower end of the supporting propulsion cylinder (18) is slidably connected to the cutter disc mounting cylinder (50) through a clamping claw, a gap is provided between the cutter disc mounting cylinder (50) and the centering reference disk (17), and the left end of the cutter disc mounting cylinder (50) is fixedly connected to the power tool holder (14); The control circuit supporting the left end of the propulsion cylinder (18) extends to the left end surface of the centering reference plate (17); A first rotating seat (54) is fixedly connected to each of the front and rear end walls of the receiving and mounting cavity (16); a support sleeve (53) is rotatably connected between the two first rotating seats (54); and two second rotating seats (59) that are symmetrical up and down are fixedly connected to the inner wall of the support sleeve (53); The line connecting the two second rotating seats (59) and the line connecting the two first rotating seats (54) are perpendicular to each other. A rotating matching cylinder (51) is rotatably connected between the two second rotating seats (59). Two matching bearings (52) distributed on the left and right are fixedly connected in the rotating matching cylinder (51). The two matching bearings (52) are rotatably connected in the cutter head mounting cylinder (50). A tool-changing spindle (58) is provided in the receiving and mounting cavity (16); the left end face of the tool-changing motor (11) is motively connected to the tool-changing spindle (58); the left end face of the tool-changing spindle (58) is fixedly connected to a universal joint (57); the left end face of the universal joint (57) is fixedly connected to a connecting seat (56); and the left end of the connecting seat (56) is fixedly connected to the tool disc mounting cylinder (50); The tool change motor (11) and the tool motor (12) at the right end of the turret box (10) are installed outside the turret box (10), and the control circuit supporting the propulsion cylinder (18) can also be set on the right end surface of the centering reference plate (17) inside the receiving installation cavity (16).

2. The support device for a power turret according to claim 1, characterized in that: A tool drive spindle (30) and a drive gear (31) are provided in the storage and installation cavity (16); the left end of the tool motor (12) is connected to the tool drive spindle (30) by power; the left end face of the tool drive spindle (30) is fixedly connected to the drive gear (31); a driven gear (32) is provided in the storage and installation cavity (16); the driven gear (32) and the drive gear (31) are meshed with each other for transmission; a clutch block (33) is slidably connected in the driven gear (32).

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