CN207058053U - A slide rail slide seat and a numerically controlled machine tool using the slide rail slide seat - Google Patents

Abstract

The utility model discloses an embrace slide rail slide and use this digit control machine tool of embracing slide rail slide. Embrace slide rail slide includes the slide body, the bottom of slide body be equipped with slide rail matched with draw-in groove, install on the draw-in groove and be used for embracing the slide rail tightly embrace the subassembly, it includes the tight piece in top and is used for the drive to embrace the subassembly tightly the drive arrangement of the tight piece in top, drive arrangement fastens on the draw-in groove, drive arrangement's power take off end passes the draw-in groove and sets up at the inboard tight piece fixed connection in top of draw-in groove. The utility model discloses an embrace slide rail slide embraces the subassembly through setting up, utilizes the drive arrangement drive top of embracing the subassembly tightly to push up the tight slide rail in piece, can realize slide high stability, and the vibration that reduces improves milling process's precision greatly.

Description

A slide rail slide seat and a numerically controlled machine tool using the slide rail slide seat

technical field

The utility model relates to the technical field of machining, in particular to a slide rail slide seat and a numerically controlled machine tool using the slide rail slide seat.

Background technique

A CNC milling machine refers to a machine tool that can mill a workpiece with a spindle. Its main components usually include a machine base, a worktable, a spindle, a spindle drive motor, a feed drive motor, and a fixture for fixing the workpiece; during operation, the spindle rotates The main movement is the main movement, and the relative movement between the workpiece and the spindle is the feed movement. The sliding seat of the existing CNC milling machine does not have the function of holding the slide rail. When milling the workpiece, the slight vibration generated between the spindle and the workpiece will be transmitted to the sliding seat, causing the position of the sliding seat on the slide rail to shift, which in turn affects the Sensitivity and machining accuracy of machine tools.

Utility model content

The purpose of this utility model is to provide a kind of holding slide rail sliding seat and the numerical control machine tool using this holding slide rail sliding seat, by setting the holding tight component, using the driving device of the holding tight component to drive the top tightening block to tighten the slide rail, it can realize The high stability of the sliding seat reduces vibration and greatly improves the precision of milling.

A sliding seat for holding a slide rail according to an embodiment of the present invention includes a sliding seat body, the bottom of the sliding seat body is provided with a card slot matching with the slide rail, and a card slot for holding the slide rail A tight clamping assembly, the clamping assembly includes a clamping block and a driving device for driving the clamping block, the driving device is fastened on the slot, and the power output end of the driving device passes through the clamping The groove is fixedly connected with the top tightening block arranged on the inner side of the card groove.

On the basis of the above solution, the clamping components are fastened to the left and right sides of the slot, and when the slide rail is clamped tightly, the driving device drives the clamping block to clamp the left and right sides of the slide rail.

On the basis of the above solution, the clamping block is a block structure tightly connected to the power output end of a single driving device or a long strip structure tightly connected to the power output ends of multiple driving devices.

On the basis of the above solution, the driving device is an air cylinder or an oil cylinder.

Another aspect of the utility model also discloses a numerically controlled machine tool using a sliding seat with a slide rail, including a split-structure machine tool base for installing the main shaft and a workbench for fixing workpieces to be processed; the machine tool base There is an X-axis sliding seat that can move back and forth along the X-axis on the machine bed, and the X-axis sliding seat is provided with a Y-axis that can move back and forth along the Y-axis on the X-axis sliding seat. A slide seat, the Y-axis slide seat is provided with a Z-axis slide seat that moves up and down on the Y-axis slide seat; the Z-axis slide seat is provided with a spindle and a spindle drive motor, and the spindle Driven by the Z-axis sliding seat, it can approach or stay away from the workpiece to be processed placed on the workbench, and can also rotate forward or reverse under the drive of the spindle drive motor; the X-axis slide At least one of the seat, the Y-axis slide seat and the Z-axis slide seat adopts the slide rail slide seat described in any of the aforementioned technical solutions.

Further, the machine bed is provided with an X-axis slide rail, and the X-axis slide seat is slidably mounted on the X-axis slide seat; the X-axis slide seat is provided with a Y-axis slide rail, so The Y-axis sliding seat is slidably installed on the Y-axis slide rail; the Y-axis slide seat is provided with a Z-axis slide rail, and the Z-axis slide seat is slidably installed on the Z-axis slide rail; The X-axis sliding seat, Y-axis sliding seat, and Z-axis sliding seat all drive the clamping block to tighten the corresponding X-axis slide rail, Y-axis slide rail, and Z-axis slide rail through the driving device in the clamping assembly. The sliding rails realize the fastening of the X-axis sliding seat, Y-axis sliding seat and Z-axis sliding seat on the corresponding sliding rails.

Further, between the machine bed and the X-axis slide seat, the X-axis slide seat and the Y-axis slide seat, the Y-axis slide seat and the Z-axis slide seat, the lead screw slide table module and its drive motor achieve relative motion.

Compared with the prior art, the utility model has the beneficial effects that the stability of the slide seat can be improved by setting the clamping assembly on the slide body, and using the driving device of the clamping assembly to drive the clamping block to tighten the slide rail. Reduce vibration and greatly improve the accuracy of milling operations.

Description of drawings

The accompanying drawings are used to provide a further understanding of the utility model, and constitute a part of the description, and are used to explain the utility model together with the embodiments of the utility model, and do not constitute a limitation to the utility model. In the attached picture:

Fig. 1 is a schematic structural diagram of a sliding seat with a sliding rail.

Fig. 2 is a structural schematic diagram of a numerical control machine tool using a slide rail slide seat proposed by the utility model.

Fig. 3 is a structural schematic diagram of the utility model applied in a fully automatic numerical control double-head milling machine.

In the picture:

1-sliding seat, 2-slide rail, 3-card slot, 4-top tight block, 5-driving device;

10-machine bed, 20-table, 30-X axial slide, 40-Y axial slide, 50-Z axial slide, 60-spindle, 70-spindle drive motor;

110-X axial slide rail, 120-X axial screw, 130-X axial drive motor;

210-first station, 220-second station, 230-electric permanent magnetic chuck;

310-X axial slot;

410-Z axial bracket, 420-Z axial slide rail, 430-Z axial screw.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Clockwise", "Counterclockwise", "Axial" The orientation or positional relationship indicated by , "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying the referred device Or elements must have a specific orientation, be constructed and operate in a specific orientation, and thus should not be construed as limiting the invention.

Referring to Fig. 1 , a sliding seat for holding a slide rail includes a sliding seat body 1. The bottom of the sliding seat body 1 is provided with a card slot 3 matched with the slide rail 2. The card slot 3 is equipped with a The clamping assembly includes a clamping block 4 and a driving device 5 for driving the clamping block 4, the driving device 5 is fastened on the slot 3, and the power output end of the driving device 5 passes through the slot 3 and the The clamping block 4 arranged inside the card slot 3 is fixedly connected.

The specific number of clamping components is determined according to the length of the slide seat 1 and the slide rail 2. They are fastened to the left and right sides of the card slot 3. When the slide rail 2 is clamped tightly, the driving device 5 drives the top clamping block 4 to push the clamping slide left and right sides of rail 2.

Wherein, the clamping block 4 is a block structure tightly connected to the power output end of a single driving device 5 or a long strip structure fastened to the power output ends of multiple driving devices 5, and the driving device 5 is an air cylinder or an oil cylinder.

With reference to Fig. 2, a kind of numerically controlled machine tool that uses slide rail slide seat, comprises the machine bed 10 that is used for installing the main shaft of split type structure and is used for fixing the workpiece table 20 that needs to be processed; The axis moves back and forth on the machine bed 10, the X-axis slide seat 30, and the X-axis slide seat 30 is provided with a Y-axis slide seat 40 that can move back and forth on the X-axis slide seat 30 along the Y axis, and the Y-axis slide The seat 40 is provided with a Z-axis slide seat 50 that moves up and down on the Y-axis slide seat 40; the Z-axis slide seat 50 is provided with a main shaft 60 and a main shaft driving motor 70, and the main shaft 60 can move on the Z-axis slide seat 50. Driven to approach or stay away from the workpiece to be processed placed on the workbench 20, it can also rotate forward or reverse under the drive of the spindle drive motor 70; wherein, the X-axis slide 30, the Y-axis slide 40, the Z The axial sliding seat 50 all adopts the slide rail sliding seat of the above-mentioned technical solution.

Between the machine bed 10 and the X-axis sliding seat 30, the X-axis sliding seat 30 and the Y-axis sliding seat 40, the Y-axis sliding seat 40 and the Z-axis sliding seat 50, the screw slide module and its drive The motor realizes relative motion.

The machine bed 10 is provided with an X-axis slide rail 110, and the X-axis slide seat 30 is slidably installed on the X-axis slide seat 30; the X-axis slide seat 30 is provided with a Y-axis slide rail 110, and the Y-axis slide The seat 40 is slidably installed on the Y-axis slide rail; the Y-axis slide seat 40 is provided with a Z-axis slide rail 420, and the Z-axis slide seat 50 is slidably installed on the Z-axis slide rail 420; the X-axis slide seat 30. The Y-axis sliding seat 40 and the Z-axis sliding seat 50 drive the clamping block 4 to push against the corresponding X-axis slide rail 110, the Y-axis slide rail, and the Z-axis slide rail through the drive device 5 in the clamping assembly. The slide rail 420 is used to fasten the X-axis slide seat 30, the Y-axis slide seat 40, and the Z-axis slide seat 50 on the corresponding slide rails; for example, the X-axis slide seat 30 passes through the X-axis slide sleeve and the X-axis slide The cooperation between the axial screw 120 and the cooperation between the X-axis slot 310 and the X-axis slide rail 110 can be slidably assembled on the machine bed 10, and the X-axis slot 310 is provided with a holding device, which can Hold the X-axis slide rail 110 tightly to prevent the position displacement of the X-axis slide seat 30 .

One side of the Y-axis slide 40 close to the workbench 20 is fastened or integrally formed with a Z-axis support 410, and the Z-axis support 410 is slidably equipped with a Z-axis slide 50. The Z-axis support 410 is provided with a Z-axis slide rail 420 and a Z-axis screw 430 extending along the Z-axis direction, and a Z-axis drive motor for driving the Z-axis slide seat 50 is not shown in the figure; The Z axial sliding seat 50 is provided with a Z axial card groove and a Z axial sliding sleeve for matching the Z axial slide rail 420 and the Z axial screw 430; the Z axial sliding seat 50 passes through the Z axial card groove and The cooperation between the Z-axis sliding sleeve and the Z-axis slide rail 420 and the Z-axis screw 430 is assembled on the Z-axis support 410; The seat 50 moves up and down along the Z-axis slide rail 420, thereby realizing the feed or reset of the main shaft 60 in the Z-axis direction, that is, the main shaft 60 can approach or move away from the workbench 20 driven by the Z-axis slide seat 50 on the workpiece to be processed.

The main shaft 60 and the main shaft drive motor 70 are arranged on the Z axial slide 50, and the main shaft 60 can be driven by the X axial slide 30, the Y axial slide 40, the Z axial slide 50 and the corresponding drive motors. Arbitrary positioning or quantitative feeding in the three-dimensional space, and at the same time, the main movement can be realized under the drive of the spindle drive motor 70, and forward rotation or reverse rotation can occur.

The workbench 20 is provided with a first station 210 and a second station 220 along the X axis, and the first station 210 and the second station 220 are respectively provided with an electro-permanent magnetic chuck 230 for sucking the workpiece; The work station 210 and the second work station 220 can be respectively used to fix workpieces with a smaller size or to fix workpieces with a larger size at the same time. Continuous stations are set on the workbench 20, and the three-axis continuous feeding of the main shaft 60 is realized through the X-axis sliding seat 30, the Y-axis sliding seat 40 and the Z-axis sliding seat 50, and the main shaft 60 can be operated without stopping and without stopping. In the case of reset, multi-station automatic continuous operation is carried out, which effectively improves the processing efficiency and reduces the labor intensity. And, when it is necessary to process a small-sized workpiece, the two stations on the workbench 20 can form a continuous replacement station: the first station 210 is milling, and the second station 220 can load the workpiece at the same time; or on the contrary, the first station Workpiece at 210, milling at second station 220; when large-size workpieces need to be processed, the two stations on the workbench 20 can be combined into one large station, which is sufficient to meet the production needs of various common workpieces at present; through this The mechanism can greatly improve the operating efficiency and adaptability of the milling machine, reduce the energy consumption rate of equipment idling, and further optimize the cost performance of the milling machine.

Since the X-axis slide seat 30, the Y-axis slide seat 40, and the Z-axis slide seat 50 all adopt the sliding rail slide seat recorded in the above technical solution, the X-axis slide seat 30, the Y-axis slide seat 40, and the Z The axial sliding seat 50 can realize the X axial sliding seat 30, the Y axial sliding seat 40, and the Z axial sliding seat 30 by setting the clamping assembly, and using the driving device 5 of the clamping assembly to drive the clamping block 4 to tighten the sliding rail 2. The high stability of the seat 50 reduces vibration and greatly improves the precision of milling.

The sliding seat of the holding slide rail in the utility model can be applied to various numerical control machine tools, for example, it is applied in the full-automatic numerical control double-head milling machine as shown in Figure 3, please refer to the prior application documents of the applicant of the utility model (title It is a fully automatic CNC double-head milling machine, the application number is 201621381200.7), the fully automatic CNC double-head milling machine includes a fixed seat, a sliding seat, a rotating table, a pressing mechanism, a first station, a second station, an automatic positioning device, The automatic measuring device (not shown in the figure) and the milling machine digital control system (not shown in the figure), wherein the first station and the second milling head sliding seat on the second station all adopt The sliding seat of the sliding rail in the above technical solution is used to reduce the slight vibration generated between the spindle and the workpiece when milling the workpiece, which will be transmitted to the sliding seat of the first milling head and the sliding seat of the second milling head, causing the first milling head to slide The positions of the seat and the sliding seat of the second milling head on the corresponding slide rails are shifted to avoid affecting the sensitivity and machining accuracy of the machine tool.

Wherein, the fixed seat is installed on the infrastructure such as the workshop floor in this embodiment, and the sliding seat is slidably connected to the fixed seat through the screw slide module; driven by the digital control system, the sliding seat can advance along the fixed seat Or back, and the sliding seat can be hugged tightly on the slide rail. The lead screw slide module can be any existing product on the market, as long as the power and specifications match, the technical solution of the present invention can be realized and the expected technical effect can be obtained. In general, the lead screw slide module includes a lead screw, a slide table connected to the lead screw by screw transmission, and a lead screw drive motor; the lead screw drive motor and lead screw are installed on a fixed seat, and the slide seat is fastened to the on stage.

The workbench establishes a rotatable connection between the slewing bearing and its drive motor and the sliding seat. The slewing bearing includes a fixed part and a movable part; the fixed part of the slewing bearing is fastened on the sliding seat, the rotary table is fastened to the movable part of the slewing bearing, and the driving motor of the slewing bearing is responsible for driving the rotation of the movable part of the slewing bearing , and then drive the rotary table and the workpiece placed on the rotary table to rotate synchronously. Any type of slewing bearing available on the market and the driving motor used in conjunction with it can be selected to establish the rotatable connection between the sliding seat and the rotary table of this application. As long as the power and specifications match, the technical solution of the present invention can be realized. And achieve the expected technical effect.

The pressing mechanism includes a pressing rod and a driving mechanism for driving the pressing rod; the pressing mechanism is set directly above the rotating worktable through a mounting bracket erected above the rotating worktable, and the moving direction of the pressing rod is positive. Place the workpiece on the rotary table; after the workpiece is placed in place, the pressing rod can press or loosen the workpiece to be processed under the action of the pressing rod driving device. Specifically, the driving device for the pressing rod may be a hydraulic cylinder or an air cylinder, and the pressing rod is fastened to the telescopic rod of the hydraulic cylinder or the air cylinder. The control end of the pressing rod driving device is electrically connected to the digital control system.

The first station and the second station are respectively arranged on both sides of the fixed seat. When the sliding seat drives the rotary table and the workpiece to be processed placed on the rotary table passes through the first station and the second station, the first The station and the second station can simultaneously mill the workpiece from two processing surfaces of the workpiece to be processed (the first processing surface and the second processing surface in this embodiment), or only one of the stations can mill the workpiece, while the other bit idle. The first station includes the first milling head, the first milling head driving motor, the first milling head fixing seat, the first milling head sliding seat and the first milling head fixing seat and the first milling head sliding seat. A milling head screw slide module; the first milling head and the first milling head driving motor are fixed on the first milling head sliding seat, and the first milling head sliding seat can slide through the first milling head screw slide module Connected to the first milling head fixing seat; in order to meet the specifications of the workpiece, the first milling head screw slide module can position the first milling head to the position calculated by the digital system under the instruction of the digital control system. The composition of the second station and the cooperation, coordination and connection relationship of each part are the same as those of the first station, and will not be repeated here.

Wherein, the sliding seat of the first milling head and the sliding seat of the second milling head both adopt the sliding rail holding slide seat in the above technical solution, and drive the top tightening block 4 to tighten the corresponding slide rail through the driving device 5 in the holding assembly, After the first milling head and the second milling head reach the specified position, they can be tightly hugged with the corresponding slide rail, which improves stability, reduces vibration, and greatly improves the precision of milling.

Different from various existing milling processes, the milling process of the fully automatic CNC double-head milling machine disclosed by the utility model using the sliding seat of the slide rail includes the following steps:

Loading step, manually or robotically place the workpiece to be processed on the rotary table;

In the pressing step, a hydraulic cylinder or an air cylinder presses the workpiece to be processed onto the rotary table;

In the automatic positioning step, the hydraulic cylinder drives the positioning block to determine the reference plane or the first processing plane of the workpiece to be processed;

The second processing surface measurement step is to measure and determine the second processing surface of the workpiece to be processed based on the reference surface determined in the automatic positioning step;

In the tool feeding step, according to the data of the automatic positioning step and the automatic measurement step, the digital control system positions the first milling head and the second milling head to the calculated position;

Step of holding the slide rail: after the first milling head and the second milling head reach the designated position, the sliding seat of the first milling head and the sliding seat of the second milling head are tightly locked with the corresponding slide rail through the clamping assembly;

In the milling step, the actuator (digital servo motor) of the digital control system drives the sliding seat to perform cutting motions along the fixed seat to the first station and the second station, when the workpiece to be processed passes through the first milling head and the second milling head , to complete the milling process.

To sum up, the slide rail holding slide seat in the present utility model can be applied to various numerical control machine tools. The slide seat 1 is provided with a holding assembly, and the driving device 5 of the holding assembly is used to drive the top tightening block 4 to hold the slide rail tightly. 2. The high stability of the sliding seat 1 can be realized to reduce the slight vibration generated between the spindle and the workpiece to be transmitted to the sliding seat when milling the workpiece, which will cause the position of the sliding seat to shift on the slide rail, reducing the Vibration greatly improves the precision of milling.

The parts of the utility model that are not described in detail are the known techniques of those skilled in the art.

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes and modifications can be made to these embodiments without departing from the principle and spirit of the present invention , replacements and modifications, the scope of the present utility model is defined by the appended claims and their equivalents.

Claims (8)

1. A sliding seat with a sliding rail, characterized in that: it includes a sliding seat body (1), and the bottom of the sliding seat body (1) is provided with a card slot (3) that matches the sliding rail (2). A clamping assembly for clamping the slide rail (2) is installed on the card slot (3), and the clamping assembly includes a top clamping block (4) and a driving device for driving the top clamping block (4) (5), the driving device (5) is fastened on the card slot (3), and the power output end of the driving device (5) passes through the card slot (3) and the top of the card slot (3) Tight block (4) is fixedly connected. 2. The sliding seat for holding the slide rail according to claim 1, characterized in that: the holding assembly is fastened on the left and right sides of the slot (3), and when the slide rail (2) is tightly held, the driving device (5 ) to drive the top tight block (4) to tighten the left and right sides of the slide rail (2). 3. The sliding seat according to claim 1, characterized in that: the top tightening block (4) is a block structure tightly connected with the power output end of a single driving device (5) or with multiple The power output end of the driving device (5) is fastened to the elongated structure. 4. The slide rail slide seat according to claim 1, characterized in that: the driving device (5) is an air cylinder or an oil cylinder. 5. A numerically controlled machine tool using a slide rail slide seat, comprising a split structure machine tool base (10) for installing a main shaft and a workpiece workbench (20) for fixing needs to be processed; the machine tool base (10) It is provided with an X-axis slide seat (30) that can move back and forth on the machine bed (10) along the X-axis, and the X-axis slide seat (30) is provided with a slide seat that can move along the Y-axis in the X-axis A Y-axis slide (40) that moves back and forth on the slide (30), the Y-axis slide (40) is provided with a Z-axis slide that moves up and down on the Y-axis slide (40) seat (50); the Z-axis sliding seat (50) is provided with a main shaft (60) and a main shaft drive motor (70), and the main shaft (60) can be driven by the Z-axis sliding seat (50) Close to or away from the workpiece to be processed placed on the worktable (20), it can also rotate forward or reverse under the drive of the spindle drive motor (70), characterized in that: the X-axis slide seat (30), at least one of the Y-axis slide seat (40) and the Z-axis slide seat (50) adopts the slide rail slide seat according to any one of claims 1-4. 6. The CNC machine tool according to claim 5, characterized in that: the machine bed (10) is provided with an X-axis slide rail (110), and the X-axis slide seat ( 30) Slidingly installed on the X-axis sliding seat (30); the Y-axis sliding seat (30) is provided with a Y-axis slide rail (110), and the Y-axis sliding seat (40) is slidably installed on On the Y-axis slide rail; the Y-axis slide seat (40) is provided with a Z-axis slide rail (420), and the Z-axis slide seat (50) is slidably installed on the Z-axis slide rail (420) Above; the X-axis sliding seat (30), the Y-axis sliding seat (40), and the Z-axis sliding seat (50) all drive the top tightening block (4) through the driving device (5) in the clamping assembly. The corresponding X-axis slide rail (110), Y-axis slide rail, and Z-axis slide rail (420) realize the X-axis slide seat (30), Y-axis slide seat (40), and Z-axis slide Seat (50) is fastened on the corresponding slide rail. 7. The CNC machine tool according to claim 6, characterized in that: the machine bed (10) and the X-axis slide (30), the X-axis slide (30) and the Y The relative movement between the axial sliding seat (40), the Y axial sliding seat (40) and the Z axial sliding seat (50) is realized through the lead screw sliding table module and its driving motor. 8. A fully automatic CNC double-head milling machine using a slide rail slide seat, comprising a fixed seat fastened to the infrastructure, a sliding seat slidably connected to the fixed seat, and connected to the sliding seat workbench, fastened on the sliding seat and located above the workbench for pressing the workpiece, the first station, the second station, the automatic positioning device, the automatic The measuring device and the milling machine digital control system, the first station includes the first milling head, the first milling head driving motor, the first milling head fixing seat, the first milling head sliding seat and the first milling head fixing seat and The first milling head screw slide table module between the first milling head sliding seats, the second station includes the second milling head, the second milling head driving motor, the second milling head fixing seat, the second milling head The sliding seat and the second milling head lead screw slide table module arranged between the second milling head fixing seat and the second milling head sliding seat are characterized in that: The sliding seat of the first milling head and the sliding seat of the second milling head on the first station and the second station all adopt the sliding seat of the holding slide rail according to any one of claims 1-4.