Double-station four-axis rotary transfer table

Abstract

The application discloses a double-station four-axis rotary exchange workbench, which comprises a fixed sleeve and a tail seat, a main shaft is rotationally arranged between the fixed sleeve and the tail seat, and further comprises a rotary head which is fixedly arranged at one end of the main shaft and rotationally connected in the fixed sleeve, an end plate which is rotationally connected with the rotary head and is provided with an external motor for driving the rotary head to rotate, a rotating disc which is coaxially fixedly arranged on the main shaft and is provided with two rotary seats which are circumferentially and symmetrically arranged, a support which is fixedly arranged at the other end of the main shaft, and a workbench which is rotationally arranged between the rotary seat and the support and is provided with a driving assembly for driving the workbench to rotate. The external motor is arranged to drive the main shaft to rotate, and the driving assembly is arranged to drive the workbench to rotate, so that the two workbenches can be flexibly switched between a cutting station and a feeding and discharging station, and not only can the workpiece be horizontally installed in the feeding and discharging station, but also the workbench can be rotated to any angle in the cutting station for machining.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of cutting workbench, in particular to a double-station four-axis rotary exchange workbench. BACKGROUND

[0002] The double-station horizontal machining center of the exchange workbench exchanges horizontally, and processes horizontally while installing and dismounting workpieces on the workbench of the other station, which shortens the auxiliary processing time and improves the production efficiency.

[0003] In the existing industry, in order to improve the rigidity of the structural part, the whole plate material is milled, which has large cutting amount and easy accumulation of iron chips. The heat is concentrated on the workbench beside the workpiece, causing the workpiece to be deformed by heat and the workpiece surface to be scratched by chips. At the same time, the accumulation of iron chips on the tool affects the final processing quality of the workpiece and shortens the service life of the tool. For this reason, the patent document CN210306736U disclosed on April 14, 2020 discloses a rapid switching four-car type machining platform, which discloses the technical scheme as follows: it belongs to the technical field of vehicle part processing, and includes a base, the base is symmetrically arranged, and a machining table is arranged between the two symmetrically arranged bases. The machining table is a cubic structure, and the six surfaces of the machining table include two connecting surfaces and four machining surfaces. The two connecting surfaces of the machining table are fixedly connected with the bases, respectively. The four machining surfaces of the machining table are respectively provided with different four-car type mounting devices. One of the bases is provided with a servo motor, the servo motor is connected with a rotating disc, the rotating disc is fixedly connected with one side of the machining table through a plurality of connecting rods, and the other side of the machining table is provided with a rotating shaft. A fixed sleeve is arranged on the base adjacent to the rotating shaft.

[0004] It can be seen that the structure of the above rotary switching workbench can avoid the accumulation of chips. However, in actual operation, in order to improve the processing efficiency and precision, the workpiece needs to be vertically clamped on the workbench for processing, and the workpiece needs to be installed and dismounted when the workbench is horizontal. However, the existing double-station horizontal machining center cannot realize the simultaneous processing and chip removal of the workpiece, so there is an urgent need for a double-station four-axis rotary exchange workbench to solve the above problems. SUMMARY

[0005] The purpose of the present application is to provide a double-station four-axis rotary exchange workbench to solve the above problems in the prior art.

[0006] In order to achieve the above purpose, the present application provides the following technical scheme:

[0007] The application discloses a double-station four-axis rotary exchange workbench which comprises a fixed sleeve, a tail seat, a main shaft arranged rotatably between the fixed sleeve and the tail seat, a rotary head fixedly arranged at one end of the main shaft and rotatably connected in the fixed sleeve, an end plate arranged axially movably on one end of the fixed sleeve away from the tail seat and rotatably connected with the rotary head, an external motor mounted on the end plate and used for driving the rotary head to rotate, a rotating disc coaxially fixedly arranged on the main shaft, two rotary seats arranged in a circumferential symmetry on the rotating disc, a support fixedly arranged at the other end of the main shaft, a workbench rotatably arranged between the rotary seat and the support, and a driving assembly arranged on the rotary seat and used for driving the workbench to rotate.

[0008] Preferably, coaxial fixing is arranged on the fixed sleeve, a fixed tooth disc is arranged coaxially on the rotary head, a control assembly is arranged on the fixed sleeve and used for controlling axial movement of the rotary head so that the fixed tooth disc and the movable tooth disc are engaged or separated.

[0009] Preferably, the control assembly comprises an oil cavity arranged in the fixed sleeve, a piston fixedly arranged outside the rotary head and arranged movably in the oil cavity, a first oil channel and a second oil channel arranged oppositely on the fixed sleeve, and the first oil channel and the second oil channel are connected with opposite sides of the oil cavity respectively.

[0010] Preferably, a tail sleeve is fixedly arranged on the main shaft and rotatably connected with the tail seat, the tail sleeve moves axially with the main shaft and the rotary head, another set of fixed tooth disc and movable tooth disc are arranged between the tail seat and the tail sleeve, and the two sets of fixed tooth disc and movable tooth disc are synchronously engaged or separated.

[0011] Preferably, rotating shafts are fixedly arranged at two ends of the workbench and rotatably connected with the rotary seat and the support respectively.

[0012] Preferably, the driving assembly is an internal motor arranged on the rotary seat, and an output end of the internal motor is connected with the rotating shaft.

[0013] Preferably, the driving assembly comprises a convex ring arranged coaxially on an outer wall of the fixed sleeve, an arc-shaped rack is arranged on the convex ring, the rotating shaft is rotatably penetrated through the rotary seat and coaxially connected with a linkage gear matched with the arc-shaped rack at an end portion.

[0014] Preferably, a limiting assembly is arranged on the rotating shaft and used for limiting rotation of the rotating shaft relative to the rotary seat, and the limiting assembly is cancelled only in the process of meshing transmission of the arc-shaped rack and the linkage gear.

[0015] Preferably, the limiting assembly comprises a clamping rod arranged penetratingly and movably along a radial direction of the rotating shaft, a clamping groove matched with the clamping rod is arranged on an inner wall of the rotary seat, a linkage block is movably arranged in the rotating shaft in an elastic manner, a sliding slot is arranged on the linkage block, a sliding pin matched with the sliding slot is arranged on the clamping rod, a trigger rod is fixedly arranged on the linkage block and arranged axially movably and penetratingly through an end portion of the rotating shaft, a magnetic attraction plate arranged in the same arc range as the arc-shaped rack is arranged on the convex ring, and the trigger rod is moved by the magnetic attraction plate when passing through the magnetic attraction plate.

[0016] Preferably, a ring body is sleeved on the convex ring, the arc-shaped rack is arranged on the outer wall of the ring body, and the convex ring is provided with an adjusting assembly for adjusting the rotation angle of the ring body.

[0017] In the above technical solution, the application has the following beneficial effects:

[0018] The double-position four-axis rotary exchange workbench is driven to rotate by an external motor and a driving assembly, so that the two workbenches can be flexibly switched between the cutting station and the feeding and discharging station, the workpiece can be horizontally installed in the feeding and discharging station, and the workbench can be rotated to any angle for machining in the cutting station, the problem of chip removal is solved, and the rotation shafts of the main shaft and the workbench can be linked to expand the function of the exchange mechanism.

[0019] It should be understood that the foregoing general description and the following detailed description are only exemplary and explanatory, and are not intended to limit the disclosure.

[0020] This application file provides an overview of various implementations or examples of the technology described in this disclosure and is not intended to be a comprehensive or exhaustive disclosure of the technology disclosed. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments described in the present application, and other drawings can also be obtained by those skilled in the art based on these drawings.

[0022] Figure 1 The overall structure schematic diagram provided for the first embodiment of the present application is shown in the figure.

[0023] Figure 2 The front view cross-sectional structure schematic diagram provided for the first embodiment of the present application is shown in the figure.

[0024] Figure 3 The overall structure schematic diagram provided for the present application is shown in the figure. Figure 2 The enlarged structure schematic diagram at A in the figure is shown in the figure.

[0025] Figure 4 The overall structure schematic diagram provided for the second embodiment of the present application is shown in the figure.

[0026] Figure 5 The front view cross-sectional structure schematic diagram provided for the second embodiment of the present application is shown in the figure.

[0027] Figure 6 The overall structure schematic diagram provided for the present application is shown in the figure. Figure 5 The enlarged structure schematic diagram at B in the figure is shown in the figure.

[0028] Figure 7 Structure diagram of driving assembly provided for the second embodiment of the present application is shown in the figure;

[0029] Figure 8 Structure diagram of each structure on the ring body provided for the second embodiment of the present application is shown in the figure;

[0030] Figure 9 Structure diagram of partial top view provided for the third embodiment of the present application is shown in the figure.

[0031] Legend of reference signs:

[0032] 1, fixed sleeve; 2, tail seat; 3, main shaft; 4, rotating head; 5, end plate; 6, external motor; 7, rotating disc; 8, rotating seat; 9, support; 10, workbench; 11, fixed tooth disc; 12, movable tooth disc; 13, oil cavity; 14, piston; 15, first oil way; 16, second oil way; 17, tail sleeve; 18, rotating shaft; 19, built-in motor; 20, convex ring; 21, arc-shaped rack; 22, linkage gear; 23, clamping rod; 24, clamping groove; 25, linkage block; 26, sliding groove; 27, sliding pin; 28, trigger rod; 29, magnetic attraction plate; 30, ring body; 31, movable groove; 32, extrusion plate; 33, extension groove; 34, butt joint groove; 35, elastic groove; 36, top block; 37, arc-shaped groove; 38, slope body; 39, adjusting motor; 40, adjusting gear; 41, inner tooth ring. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical scheme and advantages of the embodiments of the present disclosure clearer, the technical scheme of the embodiments of the present disclosure will be described clearly and completely below in conjunction with the drawings of the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, rather than all the embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by a person of ordinary skill in the art without any inventive effort fall within the protection scope of the present disclosure.

[0034] Please refer to Figures 1-9 The double-station four-axis rotating exchange workbench provided by the embodiments of the present application comprises a fixed sleeve 1 and a tail seat 2, a main shaft 3 is rotationally arranged between the fixed sleeve 1 and the tail seat 2, further comprising: a rotating head 4, which is fixedly arranged at one end of the main shaft 3 and rotationally connected in the fixed sleeve 1; an end plate 5, which is axially movably arranged at one end of the fixed sleeve 1 away from the tail seat 2 and rotationally connected with the rotating head 4, and an external motor 6 for driving the rotating head 4 to rotate is installed on the end plate 5; a rotating disc 7, which is coaxially fixedly arranged on the main shaft 3, and two rotating seats 8 are symmetrically arranged on the circumference of the rotating disc 7; a support 9 is fixedly arranged at the other end of the main shaft 3, and a workbench 10 is rotationally arranged between the rotating seat 8 and the support 9, and a driving assembly for driving the workbench 10 to rotate is arranged on the rotating seat 8.

[0035] Specifically, the fixed sleeve 1 and the tailstock 2 are fixed on the rack or the production line, and the two are relatively fixed; the main shaft 3 includes a rotating body coaxial at both ends and a plate carrier with a groove arranged on the middle, the plate carrier is shielded between the two workbenches 10, and the groove can be used for collecting waste; the rotating head 4 is coaxial with the rotating body part of the main shaft 3; the end plate 5 is embedded in the fixed sleeve 1, and the outer wall of the end plate 5 and the corresponding inner wall of the fixed sleeve 1 are provided with a guide rib along the axial direction of the fixed sleeve 1, so as to limit the end plate 5 to move only in the axial direction of the fixed sleeve 1; the rotating head 4 is rotationally connected with the end plate 5, so that the rotating head 4 rotates relative to the end plate 5 and moves axially synchronously with the end plate 5; the external motor 6 is controlled by a servo system to drive the rotating head 4 to rotate to control the main shaft 3 to rotate 180° each time; the rotating disc 7 is coaxially fixedly connected to the rotating body of the main shaft 3 close to one end of the fixed sleeve 1, and the rotation of the rotating disc 7 makes the two workbenches 10 rotate around the main shaft 3 to switch the upper and lower positions, wherein the upper position corresponds to the cutting station, and the lower position corresponds to the feeding and discharging station, in addition, after the main shaft 3 rotates to switch the positions of the two workbenches 10 each time, the plate carrier of the main shaft 3 is in a horizontal position to meet the function of receiving waste, and during the switching process, the plate carrier gradually inclines to realize the concentration of waste pouring, and avoid the waste falling into the lower workbench 10; the rotating seat 8 and the support 9 are consistent with the support height of the workbench 10, and make the rotating shaft of the workbench 10 parallel to the main shaft 3; the driving assembly is controlled to operate by the servo system, so that under the common control of the servo system, the linkage of the rotation of the main shaft 3 and the rotation of the workbench 10 can be realized. In actual use, the external motor 6 drives the main shaft 3 to rotate, the driving assembly drives the workbench 10 to rotate, and then the two workbenches 10 can be flexibly switched between the cutting station and the feeding and discharging station, and not only the horizontal installation of the workpiece can be realized in the feeding and discharging station, but also the workbench 10 can be rotated to any angle for machining in the cutting station, the problem of chip removal is solved, and the rotation shafts of the main shaft 3 and the workbench 10 can participate in linkage, so the function of the exchange mechanism is expanded.

[0036] Compared with the prior art, the double-station four-axis rotating exchange workbench provided by the embodiment of the application drives the main shaft 3 to rotate through the external motor 6, and the driving assembly drives the workbench 10 to rotate, and then the two workbenches 10 can be flexibly switched between the cutting station and the feeding and discharging station, and not only the horizontal installation of the workpiece can be realized in the feeding and discharging station, but also the workbench 10 can be rotated to any angle for machining in the cutting station, the problem of chip removal is solved, and the rotation shafts of the main shaft 3 and the workbench 10 can participate in linkage, so the function of the exchange mechanism is expanded.

[0037] As a preferred technical scheme of the embodiment, the fixed sleeve 1 is coaxially fixedly provided with a fixed tooth disc 11, the rotating head 4 is coaxially fixedly provided with a movable tooth disc 12, the fixed sleeve 1 is provided with a control assembly for controlling the axial movement of the rotating head 4 to make the fixed tooth disc 11 and the movable tooth disc 12 engage or separate, specifically, the fixed tooth disc 11 and the movable tooth disc 12 are preferably mouse tooth disc structures, which limit the relative rotation therebetween when close to engagement, and which can relatively rotate therebetween when away from separation; the movable tooth disc 12 moves with the rotating head 4; the control assembly can be integrated with a circular grating, and the control assembly can be triggered in time for accurate positioning when the rotation angle of the main shaft 3 reaches.

[0038] As a further preferred technical scheme of the embodiment, the control assembly includes an oil cavity 13 arranged in the fixed sleeve 1, the rotating head 4 is fixedly provided with a piston 14 movably arranged in the oil cavity 13, the fixed sleeve 1 is oppositely provided with a first oil way 15 and a second oil way 16, the first oil way 15 and the second oil way 16 are respectively connected to opposite sides of the oil cavity 13, specifically, the oil cavity 13 is recessed annularly in the inner wall of the fixed sleeve 1, the piston 14 is fixedly arranged on the outer side of the rotating head 4 and is located in the oil cavity 13, and the outer wall of the piston 14 is tightly attached to the inner wall of the oil cavity 13 and is movable relative thereto; the first oil way 15 is arranged on the upper side and is connected to the side of the oil cavity 13 away from the main shaft 3, and the second oil way 16 is arranged on the lower side and is connected to the side of the oil cavity 13 close to the main shaft 3; the outer side of the fixed sleeve 1 is provided with two oil inlets respectively connected to the first oil way 15 and the second oil way 16, under the control of a servo system, the oil in and out directions of the two oil inlets are opposite and can be switched, thereby the oil flow directions in the first oil way 15 and the second oil way 16 can be switched, and the oil amounts on both sides of the piston 14 in the oil cavity 13 are changed, so as to drive the piston 14 and further drive the rotating head 4 to move axially relative to the fixed sleeve 1 without affecting the rotation of the rotating head 4 relative to the fixed sleeve 1. In actual use, when the first oil way 15 supplies oil to the oil cavity 13 and the second oil way 16 discharges oil from the oil cavity 13, the piston 14 drives the rotating head 4 to move close to the tailstock 2, and the rotating head 4 drives the movable tooth disc 12 to separate from the fixed tooth disc 11, so that the rotating head 4 can rotate, i.e., the main shaft 3 can rotate; when the first oil way 15 discharges oil from the oil cavity 13 and the second oil way 16 supplies oil to the oil cavity 13, the piston 14 drives the rotating head 4 to move away from the tailstock 2, and the rotating head 4 drives the movable tooth disc 12 to engage with the fixed tooth disc 11, so that the rotating head 4 is fixed, i.e., the main shaft 3 is fixed.

[0039] As the preferred technical solution of the embodiment, the tail sleeve 17 is fixedly arranged on the main shaft 3 and rotatably connected to the tail seat 2, the tail sleeve 17 moves axially with the main shaft 3 and the rotary head 4, another set of fixed tooth plates 11 and movable tooth plates 12 are arranged between the tail seat 2 and the tail sleeve 17, and the two sets of fixed tooth plates 11 and movable tooth plates 12 are synchronously engaged or separated, specifically, the tail sleeve 17 is coaxially arranged with the main shaft 3; the tail seat 2 and the tail sleeve 17 are limited in rotation by another set of fixed tooth plates 11 and movable tooth plates 12, and are synchronous with a set of fixed tooth plates 11 and movable tooth plates 12 between the fixed sleeve 1 and the rotary head 4, so that the rotation of the main shaft 3 at both ends can be simultaneously limited or cancelled, so that the positioning of the main shaft 3 is smooth, the precision is stable, and the repeat positioning precision is high.

[0040] As the preferred technical solution of the embodiment, the workbench 10 is fixedly provided with a rotating shaft 18 at both ends, and the rotating shaft 18 at both ends is rotatably connected with the rotary seat 8 and the support 9, respectively, specifically, the rotating shaft 18 at both ends of the workbench 10 is coaxially arranged.

[0041] As the preferred technical solution of the embodiment, the driving assembly is an internal motor 19 arranged on the rotary seat 8, the output end of the internal motor 19 is connected with the rotating shaft 18, specifically, the internal motor 19 has a servo system control, and drives the rotating shaft 18 to rotate relative to the rotary seat 8, that is, the workbench 10 rotates relative to the rotating disc 7, so that the workbench 10 can be switched to a horizontal or vertical state, or rotated to any angle to facilitate cutting.

[0042] In actual production, a numerical control machine tool combined with a tool magazine can be used to realize continuous machining of workpieces, so that the workbench capable of freely adjusting the angle in the cutting station in the above embodiments is suitable, and such a numerical control machine tool has high difficulty in software development, high software cost and high equipment cost; and another form of combining multiple special machine tools with a flow line production can improve production efficiency, freely combine and adjust the production line, and the software is simple and the cost is low, so that the workbench 10 can reach the specified angle once after entering the cutting station, for this, the following embodiment is proposed.

[0043] Another embodiment of the present application, the drive assembly includes a fixed sleeve 1 outer wall coaxially arranged protruding ring 20, the protruding ring 20 is provided with an arc rack 21, the rotating shaft 18 rotating through the rotating seat 8 and in the end coaxially connected with the arc rack 21 matching linkage gear 22, specifically, the protruding ring 20 is arranged close to the rotating disc 7; arc rack 21 is arranged on the upper side of the protruding ring 20, the rotating shaft 18 is driven by the rotating disc 7, when passing through the arc rack 21, the linkage gear 22 is engaged with the transmission and rotation occurs, that is, the workbench 10 is driven to rotate, therefore, in the process of workbench 10 from the feeding and discharging station to the cutting station, the linkage gear 22 and the arc rack 21 of the arc rack 21 arc corresponding to the rotation angle of the workbench 10 relative to the rotating disc 7; arc rack 21 can be divided into two parts on both sides of the top point of the protruding ring 20, one part is used for the process of workbench 10 from the feeding and discharging station to the cutting station and the linkage gear 22 meshing transmission, and the other part is used for the process of workbench 10 from the cutting station to the feeding and discharging station and the linkage gear 22 meshing transmission, for this, the total arc of the arc rack 21 is just corresponding to the rotating disc 7 rotating 360°, before and after the arc rack 21 and the linkage gear 22 meshing transmission, the angle of the workbench 10 relative to the rotating disc 7 is in the horizontal state when it switches to the feeding and discharging station.

[0044] As a preferred technical scheme of the present embodiment, the rotating shaft 18 is provided with a limiting component for limiting the rotation of the rotating shaft 8 relative to the rotating seat 8, and the limiting component is cancelled only during the meshing transmission of the arc rack 21 and the linkage gear 22. Specifically, the limiting component limits the rotation of the rotating shaft 18, which ensures that the workbench 10 does not rotate randomly.

[0045] As the preferred technical scheme of the embodiment, the limiting assembly comprises a clamping rod 23 movably penetrating the rotating shaft 18 in the radial direction, a clamping groove 24 matched with the clamping rod 23 is arranged on the inner wall of the rotating seat 8, a linkage block 25 movably arranged in the rotating shaft 18 in an elastic manner, a sliding groove 26 arranged on the linkage block 25, a sliding pin 27 matched with the sliding groove 26 arranged on the clamping rod 23, a trigger rod 28 movably penetrating the end of the rotating shaft 18 fixedly arranged on the linkage block 25, a magnetic plate 29 arranged on the convex ring 20 in the same range of the curvature of the arc-shaped rack 21, the trigger rod 28 is attracted and moved when passing through the magnetic plate 29, specifically, before and after the arc-shaped rack 21 meshes with the linkage gear 22, the angle of the rotating shaft 18 relative to the rotating seat 8 is just to make the clamping rod 23 correspond to the clamping groove 24; the linkage block 25 moves along the axis of the rotating shaft 18; the rotating shaft 18 is provided with a movable groove 31 for the movement of the linkage block 25, a spring is arranged in the movable groove 31 close to the linkage gear 22 to abut against the linkage block 25, so that the linkage block 25 keeps at the end of the movable range away from the linkage gear 22 without external force; the sliding groove 26 is arranged in an inclined manner, and the end away from the axis of the rotating shaft 18 is arranged closer to the direction of the linkage gear 22; when the trigger rod 28 just corresponds to the adsorption of the magnetic plate 29, the linkage gear 22 also just starts to mesh with the arc-shaped rack 21 for transmission, when the trigger rod 28 just deviates from the magnetic plate 29, the linkage gear 22 also ends the meshing transmission with the arc-shaped rack 21; the surface of the magnetic plate 29 adsorbing the trigger rod 28 is arranged in a smooth manner, that is, after the trigger rod 28 is adsorbed on the magnetic plate 29, it does not affect the continuous rotation of the trigger rod 28 with the rotating disc 7; the adsorption force of the magnetic plate 29 to the trigger rod 28 is greater than the elastic force of the linkage block 25. In actual use, when the trigger rod 28 corresponds to the magnetic plate 29 when the rotating disc 7 is rotated by the main shaft 3, the trigger rod 28 is adsorbed and moved close to the magnetic plate 29, then the linkage block 25 is moved to the direction close to the magnetic plate 29 against the elastic force, and then the sliding groove 26 and the sliding pin 27 are relatively moved, so that the clamping rod 23 is retracted into the rotating shaft 18, the clamping rod 23 is away from the clamping groove 24, and then the rotating shaft 18 can restore the rotation relative to the rotating seat 8; conversely, when the trigger rod 28 deviates from the magnetic plate 29, the trigger rod 28 moves away from the magnetic plate 29, and the linkage block 25 elastically restores and moves, and then the linkage clamping rod 23 is re-elongated to be embedded in the clamping groove 24.

[0046] As a preferred technical scheme of the embodiment, the rotating shaft 18 is axially movable relative to the rotating seat 8 or the support 9, and the extrusion plate 32 is further fixedly arranged on the convex ring 20. When the trigger lever 28 passes through the extrusion plate 32, the trigger lever 28 forces the rotating shaft 18 to reciprocally axially move. The extension slot 33 is arranged at an end of the clamping slot 24 away from the trigger lever 28. The extension slot 33 is arranged with a certain helix angle around the axis of the rotating shaft 18. Specifically, the distance between the rotating seat 8 and the support 9 is greater than the length of the workbench 10. The support 9 is arranged with the butt joint slot 34 matched with the rotating shaft 18. The butt joint slot 34 is arranged with the elastic slot 35. The elastic block 36 is elastically connected in the elastic slot 35 through a spring. The elastic block 36 is arranged to abut against the rotating shaft 18. The extrusion plate 32 is arranged with the arc-shaped slot 37 matched with the trigger lever 28. The arc-shaped slot 37 is arranged with the slope body 38 matched with the trigger lever 28 in a wedge shape. When the trigger lever 28 passes through the extrusion plate 32, the trigger lever 28 is repeatedly pressed to abut against the rotating seat 8 and then move away from the rotating seat 8 by the action of the slope body 38. In actual use, when the workbench 10 is moved to abut against the feeding and discharging stations by rotating the rotating disc 7, the trigger lever 28 passes through the extrusion plate 32 and acts on the slope body 38. When the trigger lever 28 abuts against the rotating seat 8, the trigger lever 28 pushes the inner wall of the movable slot 31 to move the rotating shaft 18 to the tailstock 2 by the linkage block 25. The spring in the tailstock 2 elastically resists the movement of the rotating shaft 18 by the elastic block 36. Then, the rotating shaft 18 is axially moved back under the elastic restoring force each time the trigger lever 28 passes through the slope body 38. Thus, the rotating shaft 18 drives the workbench 10 to axially shake. When the rotating shaft 18 moves axially to abut against the tailstock 2, the clamping lever 23 further moves in the extension slot 33. Then, the rotating shaft 18 is forced to rotate under the helix angle of the extension slot 33. Thus, the rotating shaft 18 drives the workbench 10 to rotate and shake. In summary, the workbench 10 is shaken by the above linkage to shake the chips in the workpiece that are difficult to freely fall out of the groove.

[0047] Since the workbench 10 needs to be arranged at different angles in different cutting processes, the distribution length of the arc-shaped rack 21 on both sides of the top of the convex ring 20 needs to be adjustable. The following embodiment is proposed.

[0048] In still another embodiment of the present application, the convex ring 20 is rotatably sleeved with a ring body 30, the arc-shaped rack 21 is arranged on the outer wall of the ring body 30, and the convex ring 20 is provided with an adjusting assembly for adjusting the rotation angle of the ring body 30. Specifically, a magnetic plate 29 is fixedly arranged on the ring body 30, and the adjusting assembly comprises an adjusting motor 39 mounted on the convex ring 20, the output end of the adjusting motor 39 is coaxially connected with an adjusting gear 40, and the inner wall of the ring body 30 is provided with an inner tooth ring 41 engaged with the adjusting gear 40; the ring body 30 carrying the arc-shaped rack 21 and the magnetic plate 29 can rotate relative to the convex ring 20, and the rotation angle is adjusted through the adjusting assembly, so that the distribution length of the arc-shaped rack 21 on both sides of the vertex of the convex ring 20 can be adjusted; further, the adjusting motor 39 is controlled by a servo system, the adjusting gear 40 is driven to rotate, the adjusting gear 40 is in meshing transmission with the inner tooth ring 41 of the ring body 30, the driving of the ring body 30 is realized, and the rotation angle of the arc-shaped rack 21 is adjusted.

[0049] The above only describes certain exemplary embodiments of the present application by way of illustration, and it is needless to say that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present application. Therefore, the above drawings and descriptions are illustrative in nature and should not be understood as limiting the scope of protection of the claims of the present application.

Claims

1. A dual-station four-axis rotary exchange worktable, comprising a fixed sleeve (1) and a tailstock (2), wherein a spindle (3) is rotatably disposed between the fixed sleeve (1) and the tailstock (2), characterized in that, Also includes: The rotating head (4) is fixedly mounted at one end of the main shaft (3) and rotatably connected inside the fixed sleeve (1); The end plate (5) is axially movably disposed on the fixed sleeve (1) at one end away from the tailstock (2) and is rotatably connected to the rotating head (4). An external motor (6) for driving the rotating head (4) to rotate is installed on it. Turntable (7) is coaxially fixed on main shaft (3), and two rotating seats (8) are symmetrically arranged on its circumference. A support (9) is fixedly arranged at the other end of main shaft (3). A worktable (10) is rotatably arranged between rotating seat (8) and support (9). A drive assembly for driving the worktable (10) to rotate is arranged on rotating seat (8). A fixed toothed plate (11) is coaxially fixed on the fixed sleeve (1), and a movable toothed plate (12) is coaxially fixed on the rotating head (4). A control component is provided on the fixed sleeve (1) for controlling the axial movement of the rotating head (4) to make the fixed toothed plate (11) and the movable toothed plate (12) engage or disengage. The control assembly includes an oil chamber (13) provided inside the fixed sleeve (1), a piston (14) fixedly provided outside the rotating head (4) and movably provided inside the oil chamber (13), and a first oil passage (15) and a second oil passage (16) provided opposite to each other on the fixed sleeve (1), the first oil passage (15) and the second oil passage (16) respectively connecting to the opposite sides of the oil chamber (13); A tail sleeve (17) is fixedly mounted on the main shaft (3) and rotatably connected to the tailstock (2). The tail sleeve (17) moves axially with the main shaft (3) and the rotating head (4). Another set of fixed toothed plates (11) and movable toothed plates (12) are arranged between the tailstock (2) and the tail sleeve (17), and the two sets of fixed toothed plates (11) and movable toothed plates (12) engage or disengage synchronously.

2. The dual-station four-axis rotary exchange worktable according to claim 1, characterized in that, The workbench (10) has rotating shafts (18) fixedly installed at both ends, and the rotating shafts (18) at both ends are rotatably connected to the rotating seat (8) and the support (9) respectively.

3. The dual-station four-axis rotary exchange worktable according to claim 2, characterized in that, The driving component is a built-in motor (19) installed on the rotating base (8), and the output end of the built-in motor (19) is connected to the rotating shaft (18).

4. The dual-station four-axis rotary exchange worktable according to claim 2, characterized in that, The drive assembly includes a convex ring (20) coaxially disposed on the outer wall of the fixed sleeve (1), an arc-shaped rack (21) disposed on the convex ring (20), a rotating shaft (18) rotating through the rotating seat (8) and coaxially connected at the end to a linkage gear (22) matching the arc-shaped rack (21).

5. The dual-station four-axis rotary exchange worktable according to claim 4, characterized in that, The rotating shaft (18) is provided with a limiting component for limiting its own rotation relative to the rotating seat (8). The limiting component is only removed during the meshing transmission process of the arc rack (21) and the linkage gear (22).

6. The dual-station four-axis rotary exchange worktable according to claim 5, characterized in that, The limiting component includes a locking rod (23) that is radially movably disposed on the rotating shaft (18), a locking groove (24) that matches the locking rod (23) on the inner wall of the rotating seat (8), a linkage block (25) that is elastically movably disposed inside the rotating shaft (18), a sliding groove (26) that is disposed on the linkage block (25), a sliding pin (27) that matches the sliding groove (26) that is disposed on the locking rod (23), a trigger rod (28) that is axially movably disposed on the linkage block (25) that passes through the end of the rotating shaft (18), a magnetic suction plate (29) that is arranged in the same arc range as the arc rack (21) that is disposed on the convex ring (20), and the trigger rod (28) is attracted and moved by the magnetic suction plate (29) when it passes through the magnetic suction plate (29).

7. The dual-station four-axis rotary exchange worktable according to claim 4, characterized in that, The ring body (30) is rotatably sleeved on the convex ring (20), and the arc-shaped rack (21) is set on the outer wall of the ring body (30). The convex ring (20) is provided with an adjustment component for adjusting the rotation angle of the ring body (30).

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