Workbench structure of double-spindle machining center

Abstract

The utility model belongs to the technical field of numerical control machine tools, and particularly relates to a working table structure of a double-spindle machining center, which comprises a saddle, a movable table, an electric screw rod mechanism, a first table panel and a second table panel, a linear guide rail is arranged on the saddle, the moving table is supported on the linear guide rail in a sliding mode, and the electric lead screw mechanism is arranged on the saddle, connected with the moving table and used for driving the moving table to move horizontally along the linear guide rail. A first mounting position and a second mounting position are arranged on the moving table; the first deck plate is slidably connected with the first mounting position only in the X-axis direction, and the second deck plate is slidably connected with the second mounting position only in the Y-axis direction. A first adjusting assembly and a second adjusting assembly are arranged on the moving table, the first adjusting assembly is connected with the first table top plate and used for adjusting the position of the first table top plate in the X-axis direction, and the second adjusting assembly is connected with the second table top plate and used for adjusting the position of the second table top plate in the Y-axis direction.

Description

Technical Field

[0001] This utility model belongs to the field of CNC equipment technology, and in particular relates to a worktable structure for a dual-spindle machining center. Background Technology

[0002] A machining center is a high-precision, high-efficiency CNC machine tool widely used in the field of mechanical processing. It typically possesses multiple machining functions such as milling, drilling, and tapping, enabling the completion of multi-stage machining of complex parts on a single machine. The main characteristics of a machining center include: High automation: Automated operation is achieved through a CNC system, reducing manual intervention and improving production efficiency. Multifunctionality: It can perform various machining operations such as milling, drilling, and tapping, making it suitable for manufacturing complex parts. High precision: CNC technology ensures high precision and repeatability during the machining process, meeting stringent machining requirements. Flexibility: It can quickly change tools and process parameters according to different product needs, adapting to small-batch, multi-variety production.

[0003] The existing technology has the following technical problems: CNC machining generally involves machining one part at a time, resulting in low machining efficiency and making it impossible to process multiple workpieces simultaneously. To overcome these shortcomings, Chinese utility model patent CN220806284U discloses a dual-spindle machining center, including a base and dual Z-axis columns. The dual Z-axis columns are bolted to one side of the base, and a worktable is located on the top of the other side of the base. A saddle is located at the bottom of the worktable, and a Y-axis drive rail and Y-axis drive mechanism are connected to the bottom surface of the saddle. An X-axis drive rail and X-axis drive mechanism are located between the bottom surface of the worktable and the saddle. A Z-axis drive mechanism is located on the surface of the dual Z-axis columns, and a Z-axis spindle box is connected to the bottom end of the Z-axis drive mechanism. A Z-axis tool magazine is connected to the side of the Z-axis spindle box, and a Z-axis body is located on the bottom surface of the Z-axis tool magazine. Two sets of Z-axis drive mechanisms and their surface connecting structures are distributed parallel to the surface of the dual Z-axis columns. The base top surface is connected by two Z-axis columns to two sets of Z-axis tool magazines with Z-axis transmission mechanisms. These work together with the Z-axis body to move independently up and down, performing workpiece machining on the worktable surface. The parallel installation positions of the two tool magazines greatly reduce the overall space occupied by the machine tool. Multiple workpieces can be machined simultaneously, and the vertical adjustment can accommodate different tool clamping lengths to meet different needs. Individual Z-axis tool calibration is also possible, maximizing tool life and improving the accuracy of machined products.

[0004] The technical solution disclosed in the aforementioned patent document involves setting two parts on a worktable and simultaneously machining the two workpieces on the worktable using two spindles. Since the distance between the two spindles remains fixed, it is necessary to ensure that the distance between the two workpieces is consistent with the distance between the spindles. Typically, the workpieces are clamped onto fixtures, therefore the distance between the fixtures needs to be adjusted to match the distance between the spindles. Because the worktable surface of the machining center is a flat structure without a positioning mechanism, multiple manual adjustments are required, causing inconvenience for fixture or workpiece adjustments and increasing the workload of machine setup. Utility Model Content

[0005] The purpose of this utility model is to provide a worktable structure for a dual-spindle machining center, which solves the problem of inconvenient adjustment of the spacing between fixtures or workpieces on the same worktable in existing dual-spindle machining centers.

[0006] To achieve the above objectives, this utility model provides a worktable structure for a dual-spindle machining center, including a saddle, a movable stage, an electric lead screw mechanism, a first worktable panel, and a second worktable panel. The saddle is provided with a linear guide rail, the movable stage is slidably supported on the linear guide rail, and the electric lead screw mechanism is mounted on the saddle and connected to the movable stage, used to drive the movable stage to translate along the linear guide rail. The movable stage is provided with a first mounting position and a second mounting position. The first worktable panel is slidably connected to the first mounting position only along the X-axis direction, and the second worktable panel is slidably connected to the second mounting position only along the Y-axis direction. The movable stage is provided with a first adjustment component and a second adjustment component. The first adjustment component is connected to the first worktable panel and is used to adjust the position of the first worktable panel in the X-axis direction, and the second adjustment component is connected to the second worktable panel and is used to adjust the position of the second worktable panel in the Y-axis direction.

[0007] Furthermore, the first mounting position is provided with a first protrusion, and the bottom of the first panel is provided with a first sliding groove that is slidably connected to the first protrusion. The second mounting position is provided with a second protrusion, and the bottom side of the second panel is provided with a second sliding groove that is connected to the second protrusion.

[0008] Furthermore, a first inclined surface is provided on one side of the first protrusion, and the first inclined surface forms a first limiting groove with the top surface of the moving platform; a first hook extends from the side wall of the first slide groove, and the first hook fits into the first limiting groove; a second inclined surface is provided on one side of the second protrusion, and the second inclined surface forms a second limiting groove with the top surface of the moving platform; a second hook extends from the side wall of the second slide groove, and the second hook fits into the second limiting groove.

[0009] Furthermore, the first slide and the second slide have a sidewall on only one side; the other side of the first protrusion has a first limiting strip, the lower outer end of the first limiting strip has a first extrusion slope, one side of the first platform extends a first support part, the sidewall of the first support part has a first screw hole, one side of the first platform also has a first locking member, the upper end of the first locking member has a first pressing part, the lower end has a first pushing part, the middle part has a first waist-shaped hole, the locking screw passes through the first waist-shaped hole and connects with the first screw hole, the first pressing part is limited on the top side of the first support part, and the first pushing part cooperates with the first extrusion slope;

[0010] A second limiting strip is provided on the other side of the second protrusion. A second extrusion slope is provided at the lower outer end of the second limiting strip. A second support portion extends from one side of the second platform. A second screw hole is provided on the side wall of the second support portion. A second locking member is also provided on one side of the second platform. A second pressing portion is provided at the upper end of the second locking member. A second pushing portion is provided at the lower end. A second waist-shaped hole is provided in the middle. The locking screw passes through the second waist-shaped hole and connects with the second screw hole. The second pressing portion is limited to the top side of the second support portion. The second pushing portion cooperates with the second extrusion slope.

[0011] Furthermore, a first guide strip is provided on one side of the first protrusion, and the first inclined surface is provided on the side of the first guide strip; a second guide strip is provided on one side of the second protrusion, and the second inclined surface is provided on the side of the second guide strip.

[0012] Furthermore, the first adjustment assembly includes a first support plate and a first adjustment screw; the first support plate is disposed on one side of the first mounting position, the first support plate has a first through hole, the end side of the first table panel has a first adjustment screw hole, and the first adjustment screw rotatably passes through the first through hole and connects with the first adjustment screw hole.

[0013] The second adjustment assembly includes a second support plate and a second adjustment screw; the second support plate is located on one side of the second mounting position, the second support plate has a second through hole, the end side of the second platform panel has a second adjustment screw hole, and the second adjustment screw rotatably passes through the second through hole and connects with the second adjustment screw hole.

[0014] Furthermore, the first support plate is also provided with a first connecting screw hole, the first connecting screw hole is provided with a first support screw, and the first support screw abuts against the end side of the first table panel;

[0015] The second support plate is also provided with a second connecting screw hole, and the second connecting screw hole is provided with a second support screw, which abuts against the end side of the second platform panel.

[0016] The above-mentioned technical solutions in the worktable structure of the dual-spindle machining center provided in this embodiment of the utility model have at least the following technical effects:

[0017] The worktable structure of this utility model's dual-spindle machining center allows two sets of fixtures to be positioned on the first and second worktables respectively, and then the workpiece can be clamped onto the corresponding fixture, or the workpiece can be directly positioned on the first and second worktables. The X-axis position of the first worktable is adjusted by a first adjusting component to ensure that the distance between the workpieces on the first and second worktables is consistent with the distance between the two spindles. The Y-axis position of the second worktable is then adjusted by a second adjusting component, so that the workpieces on both worktables coincide in the X-axis direction, thus enabling the two spindles to process the workpiece synchronously and maintain consistent workpiece accuracy after processing. Because the first and second adjusting components are used to adjust the first and second worktables respectively, the adjustment is simpler and more convenient, reducing the workload of machine setup. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 The structural diagram of the worktable of the dual-spindle machining center provided in the embodiment of this utility model.

[0020] Figure 2 This is a structural diagram of the other side of the worktable of the dual-spindle machining center provided in an embodiment of the present invention.

[0021] Figure 3 An exploded view of the worktable of a dual-spindle machining center provided in an embodiment of this utility model. Detailed Implementation

[0022] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the embodiments of this utility model, and should not be construed as limiting the utility model.

[0023] In the description of the embodiments of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0024] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0025] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0026] In one embodiment of the worktable structure of the dual-spindle machining center of this utility model, please refer to... Figures 1 to 3The worktable of the dual-spindle machining center in this embodiment is set in the dual-spindle machining process to realize the machining of two workpieces. Specifically, the worktable of the dual-spindle machining center in this embodiment includes a saddle 100, a movable stage 200, an electric lead screw mechanism 300, a first panel 400, and a second panel 500. The saddle 100 is provided with a linear guide rail 110, the movable stage 200 is slidably supported on the linear guide rail 110, and the electric lead screw mechanism 300 is provided on the saddle 100 and connected to the movable stage 200, for driving the movable stage 200 to translate along the linear guide rail 110. The movable stage 200 is provided with a first mounting position 201 and a second mounting position 202. The first panel 400 is slidably connected to the first mounting position 201 only along the X-axis direction, and the second panel 500 is slidably connected to the second mounting position 202 only along the Y-axis direction. The moving table 200 is equipped with a first adjustment component 600 and a second adjustment component 700. The first adjustment component 600 is connected to the first panel 400 and is used to adjust the position of the first panel 400 in the X-axis direction. The second adjustment component 700 is connected to the second panel 500 and is used to adjust the position of the second panel 500 in the Y-axis direction. In this embodiment, fixtures can be set on the first panel 400 and the second panel 500, or workpieces can be directly clamped. The moving table 200 is driven to translate by the electric lead screw mechanism 300, and with the cooperation of the machining center spindle, the workpieces on the first panel 400 and the second panel 500 are processed. To ensure that the workpieces on the first panel 400 and the second panel 500 are cut and processed simultaneously and stably, the distance between the two fixtures or workpieces needs to be adjusted before processing. Specifically, the X-axis position of the first panel 400 is adjusted by the first adjustment component 600 to ensure that the distance between the workpieces on the first panel 400 and the second panel 500 is consistent with the distance between the two spindles. The Y-axis position of the second panel 500 is then adjusted by the second adjustment component 700, so that the workpieces on the two panels coincide in the X-axis direction. This allows the two spindles to process the workpieces synchronously, and the precision of the processed workpieces remains consistent. Since the first adjustment component 600 and the second adjustment component 700 are used to adjust the first panel 400 and the second panel 500 respectively, the adjustment is simpler and more convenient, reducing the workload of machine setup.

[0027] For further details, please refer to... Figures 1 to 3 The first mounting position 201 is provided with a first protrusion 210, and the bottom of the first panel 400 is provided with a first sliding groove 401, which is slidably connected with the first protrusion 210. The second mounting position 202 is provided with a second protrusion 220, and the bottom side of the second panel 500 is provided with a second sliding groove 501, which is connected with the second protrusion 220. This allows the first panel 400 and the second panel 500 to slide and adjust perpendicularly to each other.

[0028] For further details, please refer to... Figures 1 to 3The first protrusion 210 has a first inclined surface 211 on one side, which forms a first limiting groove with the top surface of the moving platform 200; the side wall of the first sliding groove 401 extends a first hook 402, which fits into the first limiting groove. The second protrusion 220 has a second inclined surface 221 on one side, which forms a second limiting groove with the top surface of the moving platform 200; the side wall of the second sliding groove 501 extends a second hook 502, which fits into the second limiting groove. In this embodiment, the first panel 400 is slidably connected to the first protrusion 210, but is also limited on the first protrusion 210. The second panel 500 is slidably connected to the second protrusion 220, but is also limited on the second protrusion 220.

[0029] For further details, please refer to... Figures 1 to 3 Both the first slide groove 401 and the second slide groove 501 have a sidewall on only one side, while the other side is completely open. The other side of the first protrusion 210 is provided with a first limiting strip 212, and the lower outer end of the first limiting strip 212 is provided with a first extrusion slope 213. A first support part 410 extends from one side of the first panel 400. The sidewall of the first support part 410 is provided with a first screw hole (not shown in the figure). A first locking member 420 is also provided on one side of the first panel 400. The upper end of the first locking member 420 is provided with a first pressing part 421, the lower end is provided with a first pushing part 422, and the middle part is provided with a first waist-shaped hole 423. The locking screw (not shown in the figure) passes through the first waist-shaped hole 423 and connects with the first screw hole. The first pressing part 421 is limited to the top side of the first support part 410, and the first pushing part 422 cooperates with the first extrusion slope 213. Specifically, after the position of the first panel 400 is adjusted, the first locking member 420 can be used to lock the first panel 400 onto the first protrusion 210. More specifically, the first pressing part 421 of the first locking member 420 presses against the upper surface of the first support part 410, the first pushing part 422 cooperates with the first pressing surface 213, and the locking screw passes through the first waist-shaped hole 423 and connects to the first screw hole. Under the cooperation of the first pushing part 422 and the first pressing surface 213, the first pressing part 421 presses against the first support part 410, thereby fixing the first panel 400.

[0030] Please refer to Figures 1 to 3A second limiting strip 222 is provided on the other side of the second protrusion 220. A second extrusion slope 223 is provided at the lower outer end of the second limiting strip 222. A second support portion 510 extends from one side of the second panel 500. A second screw hole (not shown in the attached figure) is provided on the side wall of the second support portion 510. A second locking member 520 is also provided on one side of the second panel 500. A second pressing portion 521 is provided at the upper end of the second locking member 520, a second pushing portion 522 is provided at the lower end, and a second waist-shaped hole 523 is provided in the middle. The locking screw passes through the second waist-shaped hole 523 and connects with the second screw hole. The second pressing portion 521 is limited to the top side of the second support portion 510, and the second pushing portion 522 cooperates with the second extrusion slope 223. Specifically, after the position of the second panel 500 is adjusted, the second locking member 520 can be used to lock the second panel 500 onto the second protrusion 220. More specifically, the second pressing part 521 of the second locking member 520 presses against the upper surface of the second support part 510, the second pushing part 522 cooperates with the second pressing surface 223, and the locking screw passes through the second waist-shaped hole 523 and connects with the second screw hole. Under the cooperation of the second pushing part 522 and the second pressing surface 223, the second pressing part 521 presses against the second support part 510, thereby fixing the second panel 500.

[0031] For further details, please refer to... Figures 1 to 3 A first guide strip 230 is provided on one side of the first protrusion 210, and a first inclined surface 211 is provided on the side of the first guide strip 230. A second guide strip 240 is provided on one side of the second protrusion 220, and a second inclined surface 221 is provided on the side of the second guide strip 240. This facilitates the forming of the first inclined surface 211 and the second inclined surface 221.

[0032] For further details, please refer to... Figures 1 to 3 The first adjustment assembly 600 includes a first support plate 610 and a first adjustment screw 620. The first support plate 610 is located on one side of the first mounting position 201 and has a first through hole 611. The end side of the first panel 400 has a first adjustment screw hole 403. The first adjustment screw 620 rotatably passes through the first through hole 403 and connects with the first adjustment screw hole 403. Specifically, when adjusting the position of the first panel 400, rotating the first adjustment screw 620, in cooperation with the first adjustment screw hole 403, can drive the first panel 400 to move, thereby realizing the adjustment of the first panel 400. After the adjustment is completed, the first panel 400 can be locked.

[0033] Please refer to Figures 1 to 3The second adjustment assembly 700 includes a second support plate 710 and a second adjustment screw 720. The second support plate 710 is located on one side of the second mounting position 202 and has a second through hole 711. The end side of the second panel 500 has a second adjustment screw hole 503. The second adjustment screw 720 rotatably passes through the second through hole 711 and connects with the second adjustment screw hole 503. Specifically, when adjusting the position of the second panel 500, rotating the second adjustment screw 720, in cooperation with the second adjustment screw hole 503, can drive the second panel 500 to move, thereby adjusting the second panel 500. After adjustment, the second panel 500 can be locked.

[0034] For further details, please refer to... Figures 1 to 3 The first support plate 610 is also provided with a first connecting screw hole 612, and the first connecting screw hole 612 is provided with a first support screw 613, which abuts against the end side of the first panel 400. Specifically, in this embodiment, after the first panel 400 is adjusted, it can be supported on the end side of the first panel 400 by the first support screw 613, which forms a reaction force with the first adjusting screw 620 to lock the first panel 400 in the opposite direction.

[0035] Please refer to Figures 1 to 3 The second support plate 710 is also provided with a second connecting screw hole 712, and the second connecting screw hole 712 is provided with a second support screw 713, which abuts against the end side of the second panel 500. Specifically, in this embodiment, after the second panel 500 is adjusted, it can be supported on the end side of the second panel 500 by the second support screw 713, which forms a reaction force with the second adjusting screw 720 to lock the second panel 500 in the opposite direction.

[0036] Furthermore, in this embodiment, the worktable of the dual-spindle machining center can be disassembled from the first panel 400 and the second panel 500, and the upper surfaces of the first panel 400 and the second panel 500 can be ground to ensure the accuracy of the upper surfaces of the first panel 400 and the second panel 500.

[0037] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A worktable structure for a dual-spindle machining center, characterized in that, The device includes a saddle, a movable platform, an electric lead screw mechanism, a first panel, and a second panel. The saddle has a linear guide rail, and the movable platform is slidably supported on the linear guide rail. The electric lead screw mechanism is mounted on the saddle and connected to the movable platform, used to drive the movable platform to translate along the linear guide rail. The movable platform has a first mounting position and a second mounting position. The first panel is slidably connected to the first mounting position only along the X-axis direction, and the second panel is slidably connected to the second mounting position only along the Y-axis direction. The movable platform has a first adjustment component and a second adjustment component. The first adjustment component is connected to the first panel and used to adjust the position of the first panel in the X-axis direction, and the second adjustment component is connected to the second panel and used to adjust the position of the second panel in the Y-axis direction.

2. The worktable structure of the dual-spindle machining center according to claim 1, characterized in that: The first mounting position is provided with a first protrusion, and the bottom of the first panel is provided with a first sliding groove that is slidably connected to the first protrusion. The second mounting position is provided with a second protrusion, and the bottom side of the second panel is provided with a second sliding groove that is connected to the second protrusion.

3. The worktable structure of the dual-spindle machining center according to claim 2, characterized in that: The first protrusion has a first inclined surface on one side, and the first inclined surface and the top surface of the moving platform form a first limiting groove; the side wall of the first slide groove extends with a first hook, and the first hook fits into the first limiting groove; the second protrusion has a second inclined surface on one side, and the second inclined surface and the top surface of the moving platform form a second limiting groove; the side wall of the second slide groove extends with a second hook, and the second hook fits into the second limiting groove.

4. The worktable structure of the dual-spindle machining center according to claim 3, characterized in that: The first slide and the second slide have a sidewall on only one side; the other side of the first protrusion has a first limiting strip, the lower outer end of the first limiting strip has a first extrusion slope, one side of the first table panel extends a first support part, the sidewall of the first support part has a first screw hole, one side of the first table panel also has a first locking member, the upper end of the first locking member has a first pressing part, the lower end has a first pushing part, the middle part has a first waist-shaped hole, the locking screw passes through the first waist-shaped hole and connects with the first screw hole, the first pressing part is limited on the top side of the first support part, and the first pushing part cooperates with the first extrusion slope; A second limiting strip is provided on the other side of the second protrusion. A second extrusion slope is provided at the lower outer end of the second limiting strip. A second support portion extends from one side of the second platform. A second screw hole is provided on the side wall of the second support portion. A second locking member is also provided on one side of the second platform. A second pressing portion is provided at the upper end of the second locking member. A second pushing portion is provided at the lower end. A second waist-shaped hole is provided in the middle. The locking screw passes through the second waist-shaped hole and connects with the second screw hole. The second pressing portion is limited to the top side of the second support portion. The second pushing portion cooperates with the second extrusion slope.

5. The worktable structure of the dual-spindle machining center according to claim 3, characterized in that: A first guide strip is provided on one side of the first protrusion, and the first inclined surface is provided on the side of the first guide strip; a second guide strip is provided on one side of the second protrusion, and the second inclined surface is provided on the side of the second guide strip.

6. The worktable structure of the dual-spindle machining center according to any one of claims 1 to 5, characterized in that: The first adjustment assembly includes a first support plate and a first adjustment screw; the first support plate is disposed on one side of the first mounting position, the first support plate has a first through hole, the end side of the first table panel has a first adjustment screw hole, and the first adjustment screw rotatably passes through the first through hole and connects to the first adjustment screw hole. The second adjustment assembly includes a second support plate and a second adjustment screw; the second support plate is located on one side of the second mounting position, the second support plate has a second through hole, the end side of the second platform panel has a second adjustment screw hole, and the second adjustment screw rotatably passes through the second through hole and connects with the second adjustment screw hole.

7. The worktable structure of the dual-spindle machining center according to claim 6, characterized in that: The first support plate is also provided with a first connecting screw hole, and the first connecting screw hole is provided with a first support screw, which abuts against the end side of the first table panel; The second support plate is also provided with a second connecting screw hole, and the second connecting screw hole is provided with a second support screw, which abuts against the end side of the second platform panel.

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