A double-axis machining structure of a Swiss-type lathe

Abstract

The utility model discloses a double-axis machining structure of a Swiss-type lathe, comprising a multi-tool machining device, a first spindle device and a second spindle device are respectively installed on both sides of the multi-tool machining device, the multi-tool machining device comprises a fixed seat, a multi-axis moving assembly is arranged on the fixed seat, a driving motor 1 is installed at the moving end of the multi-axis moving assembly, the output end of the driving motor 1 is connected to a gear box 1, the gear box 1 has a plurality of output ends, a tool fixing part 1 is installed at the output end, a mounting port connected to an internal transmission component is provided on the surface of the gear box 1, the mounting port is used for installing a supplementary tool accessory, the supplementary tool accessory is connected to the transmission component, when special parts need to be machined, the supplementary tool accessory is pre-installed on the gear box 1, and is transmission-connected to the internal transmission component of the gear box 1; in this way, the operation of changing tools during machining can be omitted, and the continuity of the machining process can be ensured, thereby improving production efficiency.

Description

Technical Field

[0001] The utility model belongs to the technical field of Swiss-type lathes, in particular to a double-axis processing structure of a Swiss-type lathe. Background Art

[0002] Swiss-type lathe is a kind of precision machining machine tool, which has a multi-axis movement mode and can process parts at multiple angles. For example, in the Chinese patent document "CN111941152A, an eight-axis Swiss-type lathe", in its technical solution, the first tool group and the second tool group are distributed on the left and right, and both the left and right tool groups can be called. The workpiece is placed between the left and right tool groups, which is conducive to shortening the movement stroke of the slide plate when converting the tool for processing, and greatly shortening the tool adjustment stroke, thereby helping to improve the processing efficiency;

[0003] In actual processing, corresponding tools will be used or a combination of multiple tools will be needed to process different parts. However, the position and number of tools installed on the current Swiss-type lathes are fixed. When complex parts need to be processed, the tools need to be replaced during the processing, and the replacement of tools is very cumbersome, which increases the overall processing time. Utility Model Content

[0004] The utility model aims to provide a double-axis machining structure of a Swiss-type lathe to solve the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A double-axis machining structure of a Swiss-type lathe comprises a multi-tool machining device, a first spindle device and a second spindle device are respectively installed on both sides of the multi-tool machining device, the first spindle device and the second spindle device are arranged opposite to each other, and both can move toward the multi-tool machining device respectively;

[0007] The multi-tool processing device includes a fixed seat, a multi-axis moving assembly is provided on the fixed seat, a driving motor is installed at the moving end of the multi-axis moving assembly, the output end of the driving motor is connected to a gear box, the gear box has a plurality of output ends, a tool fixing part is installed at the output end, and a mounting port connected to an internal transmission component is provided on the surface of the gear box, the mounting port is used to install a supplementary tool accessory, and the supplementary tool accessory is connected to the transmission component.

[0008] According to a further technical solution, a driven component connected to the first spindle device is installed on one side thereof, and the driven component is connected to an auxiliary component. The auxiliary component is provided with a through hole for the product to pass through, and the through hole corresponds to the clamping end of the first spindle device.

[0009] In a further technical solution, the driven assembly includes a mounting seat, the mounting seat is rotatably connected with a linkage rod, and the linkage rod is respectively a driven wheel 1, a driven wheel 2 and a connecting sleeve connected to the driven wheel 2;

[0010] The driven wheel 1 is fixedly connected to the linkage rod and is connected to the auxiliary component through a synchronous belt;

[0011] The second driven wheel is connected to the output end of the first spindle device through a synchronous belt;

[0012] The connecting sleeve is movably connected with the linkage rod, and its outer periphery is connected with the bearing, and the outer periphery of the bearing is connected with the first main shaft device through a connecting plate.

[0013] According to a further technical solution, the output ends of the gear box 1 are distributed vertically in the longitudinal direction.

[0014] According to a further technical solution, the supplementary tool accessories include a gear box 2, the input end of which is provided with a transmission gear, which can be connected to the internal transmission structure of the gear box 1, and the gear box 2 has a plurality of output ends, on which a tool fixing part 2 is installed.

[0015] A further technical solution is that a tool fixing part three is installed on the moving end of the multi-axis moving assembly on the opposite side of the tool fixing part one, and the tool fixing part three is double-headed, facing the first spindle device and the second spindle device respectively, and is distributed at 90° to the tool fixing part one.

[0016] A further technical solution is that the first spindle device and the second spindle device have the same structure, and the second spindle device includes a spindle motor and a brake cylinder, both ends of the output shaft of the spindle motor extend outward, a brake disc is fixedly provided at one end of the output shaft, and a "V"-shaped brake groove is provided on the outer periphery of the brake disc; a pressure rod is provided at the output end of the brake cylinder, and the end of the pressure rod is adapted to the shape of the brake groove.

[0017] Beneficial effects of the utility model:

[0018] For conventional parts processing, it is not necessary to install additional tool accessories to avoid increasing weight and burdening the multi-axis moving components. When special parts need to be processed, the additional tool accessories are pre-installed on gear box one and connected to the internal transmission components of gear box one. In this way, the tool changing operation during the processing can be omitted, and the continuity of the processing process can be guaranteed, thereby improving production efficiency.

[0019] Other features and advantages of the present invention will be described in detail in the subsequent specific implementation section. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 : A three-dimensional structural diagram of the utility model.

[0021] Figure 2 : The multi-tool processing device structure of the utility model Figure 1 .

[0022] Figure 3 : The multi-tool processing device structure of the utility model Figure 2 .

[0023] Figure 4 : Partial structural diagram of the multi-tool processing device of the present utility model.

[0024] Figure 5 : Structural diagram of the driven component and auxiliary component of the utility model.

[0025] Figure 6 : Structural diagram of the first spindle device and multi-tool processing device of the present utility model.

[0026] Figure 7 : Structural diagram of the second spindle device of the present utility model.

[0027] Figure markings: 1-multi-tool processing device, 111-fixed seat, 112-multi-axis moving component, 121-driving motor one, 122-gear box one, 123-tool fixing part one, 124-installation port, 13-supplementary tool accessories, 131-gear box two, 132-transmission gear, 133-tool fixing part two, 14-driven component, 141-installation seat, 142-linkage rod, 143-driven wheel one, 144-driven wheel two, 145-connecting sleeve, 146-bearing, 147-connecting plate, 15-auxiliary component, 151-outer sleeve, 152-inner sleeve, 153-through hole, 16-tool fixing part three, 2-first spindle device, 3-second spindle device, 31-spindle motor, 32-brake cylinder, 33-brake disc, 34-brake groove, 35-pressure rod. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0029] Please refer to Figure 1-7 ;

[0030] The dual-axis machining structure described in the utility model can perform front and back machining on two workpieces, and realize the increase of tools to cope with complex parts machining requirements; it specifically comprises a multi-tool machining device 1, on both sides of which are respectively installed a first spindle device 2 and a second spindle device 3, the first spindle device 2 and the second spindle device 3 are respectively used to clamp the parts to be machined, in this embodiment, the structures of the first spindle device 2 and the second spindle device 3 are not improved, so the relevant structures in the prior art can be referred to, and will not be described in detail here; the first spindle device 2 and the second spindle device 3 are arranged opposite to each other, and both can move toward the multi-tool machining device 1 respectively;

[0031] During operation, the first spindle device 2 and the second spindle device 3 are respectively clamped with parts to be processed. Since the processing position of the tool is limited and the installation position of the tool is fixed, the processing methods and processing sequences of the two parts are different. Therefore, the sequence of actions is to process the parts of the first spindle device 2 first. After the processing is completed, the first spindle device 2 withdraws, and the second spindle device 3 moves toward the multi-tool processing device 1, and then the parts on the second spindle device 3 are processed. In other words, the processing operations of the parts can be completed twice without stopping the machine, thereby improving work efficiency.

[0032] In another embodiment, the first spindle device 2 or the second spindle device 3 can be used to clamp the tool, while the other spindle device clamps the part to be processed. During operation, the first spindle device 2 and the second spindle device 3 approach each other and move toward the multi-tool processing device 1. At this time, the spindle device with the tool installed is opposite to the part to be processed, and drilling can be performed on the part.

[0033] The following is a further description of the multi-tool processing device 1, which specifically includes a fixed seat 111, on which a multi-axis moving assembly 112 is provided. In this embodiment, the multi-axis moving assembly 112 preferably adopts a combination of multiple sets of drive motors and screw pairs, which can achieve high-precision movement. Of course, a mounting module for installing various tools is provided at the moving end of the multi-axis moving assembly, and a drive motor 121 is installed on the mounting module. The output end of the drive motor 121 is connected to a gear box 122, and the gear box 122 has a plurality of output ends, and a tool fixing part 123 is installed at the output end. Through the linkage of the drive motor 121 and the gear box 122, the plurality of tool fixing parts 123 are rotated to achieve the rotation processing of the tool;

[0034] In addition, the surface of the gear box 122 is provided with an installation port 124 which is connected to the internal transmission component. The installation port 124 is used to install a supplementary tool accessory 13. The supplementary tool accessory 13 is connected to the transmission component. Of course, the installation port 124 is usually in a closed state, for example, it is closed by a sealing cover plate, etc., and opened when needed; and the supplementary tool accessory 13 also has a transmission function, and is installed with a plurality of tools. Preferably, the plurality of output ends of the gear box 122 are vertically distributed longitudinally.

[0035] For conventional parts processing, it is not necessary to install the supplementary tool accessories 13 to avoid increasing the weight and burdening the multi-axis moving assembly 112. When special parts need to be processed, the supplementary tool accessories 13 are pre-installed on the gear box 122 and connected to the internal transmission components of the gear box 122. In this way, the tool changing operation during the processing can be omitted, and the continuity of the processing process can be guaranteed, thereby improving production efficiency.

[0036] One embodiment of the utility model regarding the supplementary tool accessory 13 specifically includes a gear box 131, and the input end of the gear box 131 is provided with a transmission gear 132. It should be noted that the gear box 122 is provided with a driving gear connected to the driving motor 121, and a driven gear connected to the driving gear indirectly or indirectly. A position for placing the transmission gear 132 is reserved at a position corresponding to the mounting port 124 of the gear box 122; when the supplementary tool accessory 13 needs to be installed, it is only necessary to insert the input end of the gear box 131 from the mounting port 124 to mesh the transmission gear 132 with the driving gear, and then fix the gear box 131 to the surface of the gear box 122 by screws and other fixing parts, and the gear box 131 has a plurality of output ends, and the output ends are provided with a tool fixing part 133;

[0037] In addition, gear box 1 and gear box 2 can be fixed by fastening screws to achieve detachability and fixation. There are many kinds of these fixing methods, which are common technical means and will not be repeated here.

[0038] During operation, the driving motor 121 not only drives the tool fixing part 123 to rotate through the gear box 122, but also drives the gear box 131 to move, thereby driving the tool fixing part 133; of course, the tool fixing part 123 and the tool fixing part 133 are staggered to avoid collision between the tools at the two locations;

[0039] In addition, the output end of the gear box 131 is cylindrical, and the shape of the mounting port 124 is adapted thereto. In actual use, the gear box 131 can be rotated according to the usage situation so that the tool fixing part 133 is facing the first spindle device 2 or the second spindle device 3, and then fixed, thereby expanding the use range of the supplementary tool accessory 13.

[0040] In this embodiment, a tool fixing part 3 16 is installed on the moving end of the multi-axis moving assembly on the opposite side of the tool fixing part 123. The tool fixing part 3 16 is fixed and does not rotate. The first spindle device 2 and the second spindle device 3 drive the part to rotate to achieve cutting. The tool fixing part 3 16 is double-headed, that is, tools can be installed at both ends, respectively, and correspond to the first spindle device 2 and the second spindle device 3 respectively. Based on the orientation of the tool fixing part 3 16, it is distributed at 90° with the tool fixing part 123.

[0041] In the embodiment of the utility model, when processing longer or larger parts, since the part mass is relatively large and the processing position is limited, it is necessary to move the spindle device away from the multi-tool processing device 1 to free up more processing positions. However, the distance between the part processing position and the spindle device will affect the increase in force on the clamping end, which is prone to the risk of breakage. Therefore, an auxiliary component 15 is detachably installed on the fixed seat 111. It is installed when it is needed and can be removed when it is not needed, without affecting the processing of other conventional parts. In addition, since the parts will rotate during processing, in order to reduce friction so as not to affect the processing accuracy, a driven component 14 connected to the driven component 14 is installed on one side of the first spindle device 2. The driven component 14 is connected to the auxiliary component 15. The first spindle device 2 and the auxiliary component 15 are synchronized through the driven component 14. In addition, a through hole 153 for the product to pass through is provided in the auxiliary component 15. The through hole 153 corresponds to the clamping end of the first spindle device 2. After the product passes through the through hole 153, it is clamped and fixed by the first spindle device 2.

[0042] Regarding one embodiment of the auxiliary component 15;

[0043] The auxiliary component 15 includes an outer sleeve 151 with a bearing 146. The outer sleeve 151 is installed on the fixed seat 111 by screws, flanges and other parts. The inner sleeve 152 is rotatably connected inside the outer sleeve 151. The inner sleeve 152 has a through hole 153. One end of the inner sleeve 152 is connected to a synchronous wheel. The synchronous wheel is connected to the driven component 14 through a belt. The synchronous wheel is driven to rotate by the driven component 14, so that the inner sleeve 152 rotates synchronously with the first spindle device 2.

[0044] In this embodiment, the driven component 14 includes a mounting seat 141, and a linkage rod 142 is rotatably connected to the mounting seat 141. The linkage rod 142 is respectively driven wheel 143, driven wheel 2 144 and a connecting sleeve 145 connected to the driven wheel 2 144, wherein the driven wheel 143 is fixedly connected to the linkage rod 142 and connected to the auxiliary component 15 through a synchronous belt. In this embodiment, the relative position of the driven wheel 143 and the linkage rod 142 remains unchanged, and the driven wheel 2 144 is connected to the output end of the first spindle device 2 through a synchronous belt. The connecting sleeve 145 is movably engaged with the linkage rod 142, and its outer periphery is connected to the bearing 146. The connecting sleeve 145 can move repeatedly on the linkage rod 142. For example, a plurality of card grooves are provided on the linkage rod 142, and a plurality of card blocks are provided on the inner wall of the connecting sleeve 145. Under the limitation of this structure, the connecting sleeve 145 can reciprocate along the linkage rod 142; the outer periphery of the bearing 146 is connected to the first spindle device 2 through a connecting plate 147;

[0045] When in motion, the first spindle device 2 will adjust its position forward and backward. At this time, the connecting plate 147 will drive the bearing 146 to move forward and backward. Since the inner side of the bearing 146 is connected to the connecting sleeve 145, and the connecting sleeve 145 is connected to the driven wheel 2 144, the bearing 146 will drive the connecting sleeve 145 and the driven wheel to move along the direction of the linkage rod 142 when it is pushed. After the position adjustment is completed, the positions of the connecting sleeve 145 and the linkage rod 142 are fixed. When the first spindle device 2 rotates, the driven wheel 2 144 will be driven to rotate through the synchronous belt. The driven wheel 2 144 will drive the connecting sleeve 145 to rotate. The connecting sleeve 145 will rotate the linkage rod 142, and finally drive the driven wheel 1 143 to rotate synchronously.

[0046] In the embodiment of the utility model, the first spindle device 2 and the second spindle device 3 have the same structure, specifically a spindle motor 31 and a brake cylinder 32. Both ends of the output shaft of the spindle motor 31 extend outward, one end of the output shaft is used to install a fixture or a tool, which is not shown in the figure, and the other end is fixed with a brake disc 33. In this embodiment, the brake disc 33 and the output shaft can be fixed by spline. When forced braking is required, it is more secure than using screws and other fixing methods; the outer periphery of the brake disc 33 is provided with a "V"-shaped brake groove 34, and the output end of the brake cylinder 32 is provided with a pressure rod 35, which is opposite to the brake groove 34, and the end of the pressure rod 35 is adapted to the shape of the brake groove 34. It is further explained that since the brake disc 33 is coaxially arranged with the output shaft, that is, the pressure rod 35 is in a vertical state and always remains perpendicular to the axial direction of the output shaft;

[0047] Preferably, the brake cylinder 32 is installed on the spindle motor 31 through an extension plate, which can reduce the volume occupied. Secondly, the spindle motor 31 often needs to move. Installing the brake cylinder 32 on the spindle motor 31 can make it move with it, fix the relative positions of the two, and ensure the braking effect.

[0048] During normal operation, the brake cylinder 32 is in a retracted state, so that the pressure rod 35 is away from the brake groove 34. At the same time, the spindle motor 31 rotates the output shaft at a high speed, and the brake disc 33 rotates synchronously with the output shaft. When an emergency situation requires braking, the brake cylinder 32 quickly pushes the pressure rod 35 out and makes its end fit in the brake groove 34, thereby clamping the brake disc 33. It should be noted that after the emergency brake is triggered, the spindle motor 31 will generally stop running, and the output shaft only rotates by inertia at this time. Of course, the spindle motor 31 stops running and brakes in an instant. During this process, the brake cylinder 32 will be in a continuous output state, so that the pressure rod 35 remains in a clamped state with the brake disc 33. In addition, the position where the pressure rod 35 contacts the brake groove 34 is subjected to force, and the pressure rod 35 applies a force perpendicular to the output shaft to the brake disc 33, while the force of the brake disc 33 at the contact point is perpendicular to the pressure rod 35, that is, the two forces are perpendicular to each other, so that the force on the brake disc 33 is the largest.

[0049] Preferably, the angle of the inclined surface formed by the brake groove 34 is slightly smaller than the inclination angle of the end of the pressure rod 35, that is, after the pressure rod 35 extends into the brake groove 34, before it touches the bottom, the end of the pressure rod 35 will contact the two sides of the brake groove 34 to generate friction. As the pressure rod 35 continues to move, the two sides of the pressure rod 35 squeeze the brake groove 34, and generate a huge friction force, which is stuck and cannot rotate to achieve braking. Of course, this process only occurs within a very short time.

[0050] The utility model realizes the forced braking of the electric spindle by adopting a clamping method, which can stop the operation of the electric spindle more quickly than the traditional friction brake, and will not cause the problem of inertial deflection, thereby improving the braking effect.

[0051] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0052] 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 implementations that can be understood by those skilled in the art.

Claims

1. A double-axis machining structure of a Swiss-type lathe, comprising a multi-tool machining device (1), a first spindle device (2) and a second spindle device (3) being respectively installed on both sides of the multi-tool machining device (1), the first spindle device (2) and the second spindle device (3) being arranged opposite to each other, and both of them can move toward the multi-tool machining device (1), characterized in that: The multi-tool processing device (1) comprises a fixed seat (111), a multi-axis moving assembly (112) is arranged on the fixed seat (111), a driving motor (121) is installed at the moving end of the multi-axis moving assembly (112), the output end of the driving motor (121) is connected to a gear box (122), the gear box (122) has a plurality of output ends, a tool fixing part (123) is installed at the output end, and a mounting port (124) connected to an internal transmission component is arranged on the surface of the gear box (122), the mounting port (124) is used to install a supplementary tool accessory (13), and the supplementary tool accessory (13) is connected to the transmission component.

2. The double-axis machining structure of a Swiss-type lathe according to claim 1, characterized in that: A driven component (14) connected to the first spindle device (2) is installed on one side thereof, and the driven component (14) is connected to an auxiliary component (15). The auxiliary component (15) is provided with a through hole (153) for the product to pass through, and the through hole (153) corresponds to the clamping end of the first spindle device (2).

3. The double-axis machining structure of a Swiss-type lathe according to claim 2, characterized in that: The driven assembly (14) comprises a mounting seat (141), a linkage rod (142) is rotatably connected to the mounting seat (141), and the linkage rod (142) is respectively connected to a driven wheel 1 (143), a driven wheel 2 (144), and a connecting sleeve (145) connected to the driven wheel 2 (144); The driven wheel 1 (143) is fixedly connected to the linkage rod (142), and is connected to the auxiliary component (15) via a synchronous belt; The second driven wheel (144) is connected to the output end of the first main shaft device (2) via a synchronous belt; The connecting sleeve (145) is movably connected to the linkage rod (142), and its outer periphery is connected to the bearing (146). The outer periphery of the bearing (146) is connected to the first spindle device (2) via a connecting plate (147).

4. The double-axis machining structure of a Swiss-type lathe according to claim 1, characterized in that: The output ends of the gear box 1 (122) are distributed vertically in the longitudinal direction.

5. The double-axis machining structure of a Swiss-type lathe according to claim 4, characterized in that: The supplementary tool accessory (13) comprises a second gear box (131), the input end of the second gear box (131) is provided with a transmission gear (132), the transmission gear (132) can be connected to the internal transmission structure of the first gear box (122), and the second gear box (131) has a plurality of output ends, and the output ends are equipped with a second tool fixing part (133).

6. The double-axis machining structure of a Swiss-type lathe according to claim 5, characterized in that: On the side opposite to the tool fixing part one (123), a tool fixing part three (16) is installed on the moving end of the multi-axis moving assembly. The tool fixing part three (16) is double-headed and faces the first spindle device (2) and the second spindle device (3) respectively, and is distributed at 90 degrees with the tool fixing part one (123).

7. The double-axis machining structure of a Swiss-type lathe according to claim 1, characterized in that: The first spindle device (2) and the second spindle device (3) have the same structure. The second spindle device (3) comprises a spindle motor (31) and a brake cylinder (32). Both ends of the output shaft of the spindle motor (31) extend outward. A brake disc (33) is fixedly provided at one end of the output shaft. A "V"-shaped brake groove (34) is provided on the outer periphery of the brake disc (33). A pressure rod (35) is provided at the output end of the brake cylinder (32), and the end of the pressure rod (35) is adapted to the shape of the brake groove (34).

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