Horizontal moving rotary table

Abstract

The utility model discloses a horizontal moving rotary table, which relates to the technical field of numerical control machining and comprises a base, a sliding seat and a worktable, two parallel support guide rails are symmetrically arranged on the front side and the rear side of the base, the sliding seat is slidably connected onto the support guide rails, and two lead screw bearing seats are symmetrically arranged on the central axis of the base. A ball screw is arranged between the two screw bearing seats, a servo motor is arranged at one end of the ball screw, a nut seat capable of being embedded into the bottom of the sliding seat is arranged on the ball screw, a main shaft is arranged in the center of the sliding seat, the main shaft is sleeved with a rotary support, an outer gear is arranged on the outer side face of the rotary support, and the workbench is fixed to the rotary support. A driving gear box matched with the outer gear is arranged on the side face of the sliding base, a plurality of T-shaped grooves are formed in the workbench, straight movement and rotation are achieved, the working range is enlarged, the machining precision is high, and the machining efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of numerical control processing, in particular to a horizontally movable rotary worktable. Background Art

[0002] A rotary table refers to a machine tool accessory with a rotatable table top that is used to clamp workpieces and achieve rotation and indexing positioning. It is referred to as a rotary table or the fourth axis. It is a common component of CNC horizontal milling and boring machines, horizontal machining centers, and CNC floor-standing milling and boring machines. According to their functions, rotary tables can be divided into two categories: general rotary tables and precision rotary tables.

[0003] The patent application with the authorization announcement number CN215146749U discloses a rotary table of a CNC lathe, including a base, a driving motor is arranged inside the base, the output end of the driving motor extends to the upper surface of the base, and a mounting plate is installed on the top of the output shaft, the upper surface of the mounting plate is fixedly connected with a working platform, the upper surface of the working platform is provided with a placement groove, the working platform is provided with four fixed cavities, and electric push rods are installed inside the four fixed cavities, and every two electric push rods form a group, and the output end of each group of electric push rods extends to the inside of the placement groove. The rotary table of the CNC lathe is convenient for pressing and limiting workpieces of different shapes by setting a working platform, a placement groove, an electric push rod, a mounting ring and a rubber top plate. Through the rotation connection between the electric push rod and the mounting ring, the electric push rod can push the rubber top plate to deform into an arc when pressing a circular workpiece. However, there are defects such as low processing accuracy, small range and low efficiency, which cannot meet the existing wind power workpiece processing technology. Utility Model Content

[0004] In order to overcome the defects of low processing precision, small range and low efficiency in the prior art, the utility model provides a horizontal movable rotary worktable.

[0005] The technical solution adopted by the utility model to solve its technical problems is: a horizontally movable rotary worktable, including a base, a slide and a worktable, two parallel supporting guide rails are symmetrically arranged on the front and rear sides of the base, the slide is slidably connected to the supporting guide rails, two screw bearing seats are symmetrically arranged on the central axis of the base, a ball screw is arranged between the two screw bearing seats, a servo motor is arranged at one end of the ball screw, a nut seat capable of being engaged with the bottom of the slide is arranged on the ball screw, a main shaft is arranged at the center of the slide, a rotary support is sleeved on the main shaft, an external gear is arranged on the outer side surface of the rotary support, the worktable is fixed on the rotary support, a driving gear box matching the external gear is arranged on the side of the slide, and a plurality of T-slots are arranged on the worktable.

[0006] As a further improvement of the utility model, the servo motor is connected to the ball screw via a reducer.

[0007] As a further improvement of the utility model, two parallel auxiliary guide rails are symmetrically provided on the inner side of the base.

[0008] As a further improvement of the utility model, a plurality of sliding blocks are provided on the supporting guide rail and the auxiliary guide rail.

[0009] As a further improvement of the present invention, auxiliary support seats cooperating with the workbench are provided at the four corners of the slide seat.

[0010] As a further improvement of the utility model, a locking oil cylinder is provided on the side of the slide seat.

[0011] Compared with the prior art, the utility model has the beneficial effects: in this scheme, two parallel support guide rails are symmetrically provided on the front and rear sides of the base, the screw bearing seats are installed at both ends of the ball screw, the servo motor rotates to drive the ball screw to rotate, the nut seat on the ball screw is embedded in the bottom of the slide seat, thereby controlling the slide seat to move back and forth on the base, driving the gear box to control the slewing support to rotate on the slide seat, and the workbench is fixed on the slewing support to realize straight movement and rotation, thereby expanding the working range, increasing the processing accuracy, and improving the processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The utility model is further described below in conjunction with the accompanying drawings and specific implementation methods.

[0013] Figure 1 The utility model is a structural schematic diagram of a horizontal movable rotary worktable.

[0014] Figure 2 It is a structural schematic diagram of the base of the utility model.

[0015] Figure 3 It is a structural schematic diagram of the slide seat of the utility model.

[0016] Figure 4 It is a structural schematic diagram of the workbench of the utility model.

[0017] In the figure: 1. base; 2. slide; 3. support guide rail; 4. ball screw; 5. screw bearing seat; 6. servo motor; 7. reducer; 8. nut seat; 9. auxiliary guide rail; 10. slide block; 11. main shaft; 12. slewing support; 13. external gear; 14. driving gear box; 15. auxiliary support seat; 16. locking cylinder; 17. T-slot; 18. workbench. DETAILED DESCRIPTION

[0018] In order to make the technical solution and beneficial effects of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments.

[0019] Reference Figures 1 to 3The utility model embodiment discloses a horizontally movable rotary worktable, including a base 1, a slide 2 and a worktable 18. Two parallel support rails 3 are symmetrically arranged on the front and rear sides of the base 1. The slide 2 is slidably connected to the support rails 3. Two screw bearing seats 5 are symmetrically arranged on the central axis of the base 1. A ball screw 4 is arranged between the two screw bearing seats 5. A servo motor 6 is arranged at one end of the ball screw 4. A nut seat 8 capable of being engaged with the bottom of the slide 2 is arranged on the ball screw 4. A main shaft 11 is arranged at the center of the slide 2. A slewing support 12 is sleeved on the main shaft 11. An external gear 13 is arranged on the outer side surface of the slewing support 12. The worktable 18 is fixed on the slewing support 12. A driving gear box 14 matching the external gear 13 is arranged on the side of the slide 2.

[0020] The driving gearbox 14 adopts a double gear anti-backlash structure. When rotating, one gear rotates forward in advance and the other gear rotates backward, so that there is a certain reverse force between the two gears, so that the gear ring can be accurately positioned when rotating.

[0021] Two parallel support rails 3 are symmetrically provided on the front and rear sides of the base 1. The screw bearing seats 5 are installed at both ends of the ball screw 4. The servo motor 6 rotates to drive the ball screw 4 to rotate. The nut seat 8 on the ball screw 4 is embedded in the bottom of the slide 2, thereby controlling the slide 2 to move back and forth on the base 1. The driving gear box 14 controls the slewing support 12 to rotate on the slide 2, and the workbench 18 is fixed on the slewing support 12.

[0022] Reference Figure 4 The workbench 18 is used to install the workpiece, and a plurality of T-shaped slots 17 are provided on the workbench 18. The workbench 18 can rotate on the slide 2 at a certain speed and can move on the base 1 together with the slide 2.

[0023] The servo motor 6 is connected to the ball screw 4 via a speed reducer 7. Two parallel auxiliary guide rails 9 are symmetrically arranged on the inner side of the base 1 for auxiliary support and guidance, so that the movement of the slide 2 on the base 1 is more stable.

[0024] The base 1 is fixed to the foundation by adjusting the shims and the anchor screws, and the levelness and linearity of the base 1 are obtained by adjusting the shims. If necessary, the bed can be readjusted by adjusting the shims.

[0025] The support rail 3 and the auxiliary rail 9 are provided with a plurality of slide blocks 10. The slide blocks 10 on the support rail 3 should be guaranteed to be consistent in height, and the horizontal slide table can be guaranteed to fall on the horizontal position.

[0026] The four corners of the slide 2 are provided with auxiliary support seats 15 that cooperate with the workbench 18. The side of the slide 2 is provided with a locking cylinder 16.

[0027] It should be understood that the specific embodiments described herein are only used to understand the present invention and are not used to limit the present invention. All other embodiments obtained by those skilled in the art without making any creative work are within the scope of protection of the present invention.

Claims

1. A horizontally movable rotary table, characterized in that: The invention comprises a base (1), a slide (2) and a workbench (18). Two parallel support rails (3) are symmetrically arranged on the front and rear sides of the base (1). The slide (2) is slidably connected to the support rails (3). Two screw bearing seats (5) are symmetrically arranged on the central axis of the base (1). A ball screw (4) is arranged between the two screw bearing seats (5). A servo motor (6) is arranged at one end of the ball screw (4). A nut seat (8) capable of being engaged with the bottom of the slide (2) is arranged on the ball screw (4). A main shaft (11) is arranged at the center of the slide (2). A slewing support (12) is sleeved on the main shaft (11). An external gear (13) is arranged on the outer side surface of the slewing support (12). The workbench (18) is fixed on the slewing support (12). A driving gear box (14) matching the external gear (13) is arranged on the side surface of the slide (2). A plurality of T-shaped slots (17) are arranged on the workbench (18).

2. The horizontally movable rotary table according to claim 1, characterized in that: The servo motor (6) is connected to the ball screw (4) via a speed reducer (7).

3. The horizontally movable rotary table according to claim 2, characterized in that: Two parallel auxiliary guide rails (9) are symmetrically arranged on the inner side of the base (1).

4. The horizontally movable rotary table according to claim 3, characterized in that: A plurality of sliding blocks (10) are provided on the supporting guide rail (3) and the auxiliary guide rail (9).

5. The horizontally movable rotary table according to claim 3, characterized in that: Auxiliary support seats (15) cooperating with the workbench (18) are provided at the four corners of the slide seat (2).

6. The horizontally movable rotary table according to claim 1, characterized in that: A locking oil cylinder (16) is provided on the side of the slide seat (2).

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