Positioning device for rotating table of high-precision numerical control lathe

Abstract

The utility model relates to the technical field of rotating tables, and discloses a high-precision numerically controlled lathe rotating table positioning device which comprises a base, two cavities are formed in the base, a supporting plate is fixedly installed on the rear side of the base, a top plate is fixedly installed on the top of the front side of the supporting plate, a screw moving mechanism is arranged in each cavity, and a positioning mechanism is arranged on the top of the base. A lifting mechanism is arranged on the top plate. A workbench is rotationally installed on the top of the base. Compared with the prior art, the machining device has the following advantages and effects that by arranging the positioning mechanism, the purposes that the V-shaped groove is tightly attached to the workbench, high-precision positioning of the workbench can be achieved, it is ensured that the position of a workpiece is stable in the machining process, and the machining precision and quality are improved can be achieved, by arranging the dust suction mechanism, the work area can be kept clean, and the machining efficiency is improved. The influence of chippings on machining equipment and workpieces is reduced, the service life of the equipment is prolonged, and the machining efficiency is improved.

Description

Technical Field

[0001] This application relates to the field of rotary table technology, and in particular to a high-precision CNC lathe rotary table positioning device. Background Technology

[0002] A rotary table is a machine tool accessory with a rotatable table surface used to clamp workpieces and achieve rotation and indexing positioning. It is also called a rotary table or fourth axis. Rotary tables can be divided into two categories according to their functions: general-purpose rotary tables and precision rotary tables.

[0003] A search revealed that patent document CN215146749U discloses a rotary table for a CNC lathe, comprising a base, an internal drive motor, an output end of which extends to the upper surface of the base, and a mounting plate mounted on the top of the output shaft. A work platform is fixedly connected to the upper surface of the mounting plate, and a placement groove is formed on the upper surface of the work platform. The work platform has four fixed cavities, each housing an electric push rod, with two electric push rods forming a group. The output end of each group of electric push rods extends into the placement groove. This rotary table for the CNC lathe, by incorporating a work platform, placement groove, electric push rods, a mounting ring, and a rubber top plate, facilitates the clamping and limiting of workpieces of different shapes. Through the rotational connection between the electric push rods and the mounting ring, when clamping a circular workpiece, the electric push rods push the rubber top plate to undergo arc deformation, thereby improving the applicability of the rotary table.

[0004] In practical use, it has been found that existing rotary tables cannot position the worktable when machining workpieces, which easily causes the worktable to rotate during machining, thus preventing the workpiece from being machined accurately. Therefore, we propose a high-precision CNC lathe rotary table positioning device to solve the above problems. Utility Model Content

[0005] The purpose of this application is to address the shortcomings of existing technologies, such as the inability to position the worktable, which can easily cause the worktable to rotate during processing, thus preventing precise machining of the workpiece. Therefore, a high-precision CNC lathe rotary worktable positioning device is proposed.

[0006] The above-mentioned technical objective of this application is achieved through the following technical solution: a high-precision CNC lathe rotary table positioning device, comprising a base, wherein two cavities are formed inside the base, a support plate is fixedly installed on the rear side of the base, a top plate is fixedly installed on the top front side of the support plate, a wire-driven mechanism is provided inside the cavity, a positioning mechanism is provided on the top of the base, a lifting mechanism is provided on the top plate, a worktable is rotatably installed on the top of the base, and fixed seats are fixedly installed on both sides of the top of the worktable, with clamping mechanisms provided on the fixed seats; a housing is fixedly installed at the bottom of the base, a motor is fixedly installed on the inner wall of the bottom of the housing, the top end of the motor output shaft is fixedly connected to the bottom of the worktable, the motor output shaft is located between the two cavities, two seat holes are formed at the top of the base, the worktable is located between the two seat holes, two first plate holes are formed at the top of the base, the first plate holes are located outside the seat holes, and two second plate holes are formed at the bottom of the base, both the first plate holes and the second plate holes are connected to the cavities.

[0007] A further configuration of this application is as follows: the lead screw mechanism includes two lead screws and two lead screw seats. The same lead screw is rotatably installed on the inner walls of both sides of the cavity. The lead screw is threaded with a lead screw seat, and the lead screw seat is slidably connected to a corresponding seat hole. The two lead screws are provided with external threads with opposite directions of rotation.

[0008] By adopting the above technical solution and by setting up a lead screw mechanism, the lead screw can drive the lead screw seat to move closer to the worktable, thereby achieving the purpose of driving the positioning seat to move closer to the worktable.

[0009] A further feature of this application is that the positioning mechanism includes a positioning seat and a V-groove. The positioning seat is fixedly installed on one side of each of the two lead screw seats, and a V-groove is provided on one side of each of the two positioning seats. The V-groove is adapted to the worktable.

[0010] By adopting the above technical solution and setting up a positioning mechanism, the positioning seat can drive the V-groove to fit tightly against the worktable, thereby achieving high-precision positioning of the worktable, ensuring the stability of the workpiece position during processing, and improving processing accuracy and quality.

[0011] A further configuration of this application is as follows: the lifting mechanism includes a hydraulic cylinder and a lifting plate. A hydraulic cylinder is fixedly installed on the top of the top plate. The bottom end of the hydraulic cylinder output shaft passes through the bottom of the top plate. A lifting plate is fixedly installed on the bottom end of the hydraulic cylinder output shaft. The rear side of the lifting plate is slidably connected to the front side of the support plate. A gear mechanism is provided between the lifting plate and the lead screw. A dust collection mechanism is provided between the lifting plate and the top plate.

[0012] By adopting the above technical solution and by setting up a lifting mechanism, the hydraulic cylinder can move the lifting plate up and down, thereby achieving the purpose of driving the rack plate and the dust collection hood to move up and down.

[0013] A further configuration of this application is as follows: the gear mechanism includes a rack plate and a gear, the rack plate is fixedly installed on the top of the lifting plate, the rack plate is slidably connected to the first plate hole, the rack plate is adapted to the second plate hole, a gear is fixedly sleeved on the lead screw, the gear is located outside the corresponding lead screw seat, and the rack plate meshes with the corresponding gear.

[0014] By adopting the above technical solution and by setting up a gear mechanism, the lifting plate can move up and down to drive the lead screw to rotate.

[0015] A further feature of this application is that the clamping mechanism includes an electric cylinder and a pressing plate. The electric cylinder is fixedly installed on the outside of the fixed seat, the output shaft of the electric cylinder extends to the inside of the fixed seat, the pressing plate is fixedly installed on the output shaft of the electric cylinder, and a rubber pad is provided on the inside of the pressing plate.

[0016] By adopting the above technical solution and by setting up a clamping mechanism, the electric cylinder can drive the extrusion plate close to the workpiece, thereby achieving the purpose of extruding and fixing the workpiece by means of a rubber pad.

[0017] A further configuration of this application is as follows: the vacuuming mechanism includes a vacuum cleaner, a vacuum hood, and a telescopic hose. The vacuum cleaner is installed on the top of the top plate, and the vacuum hood is fixedly installed on the rear side of the bottom of the lifting plate. The same telescopic hose is provided between the vacuum hood and the vacuum cleaner.

[0018] By adopting the above technical solution and by setting up a dust collection mechanism, the vacuum cleaner can suck up the debris generated during processing through the dust collection hood via a telescopic hose, thereby achieving the purpose of keeping the work area clean and reducing the impact of debris on processing equipment and workpieces.

[0019] A further feature of this application is that the same fixing rod is fixedly installed on the inner walls of both sides of the cavity, the fixing rod is located below the lead screw, and the lead screw seat is slidably sleeved on the corresponding fixing rod.

[0020] By adopting the above technical solution and by setting a fixed rod, the lead screw seat can move more smoothly when moving left and right.

[0021] The beneficial effects of this application are:

[0022] (1) Through the cooperation of hydraulic cylinder, lifting plate, rack plate, gear, lead screw, lead screw seat and positioning seat, the hydraulic cylinder can be lowered to drive the lead screw to rotate, which can drive the positioning seat to approach the worktable, and can be tightly fitted with the worktable through the V-groove, which can achieve high-precision positioning of the worktable, ensure the stability of the workpiece position during the processing, and improve the processing accuracy and quality.

[0023] (2) By combining the lifting plate, dust hood, vacuum cleaner and telescopic hose, the lifting plate can drive the dust hood to move downward synchronously, and the vacuum cleaner can use the telescopic hose to suck away the debris generated in the processing area in time. This can achieve the purpose of keeping the working area clean, reducing the impact of debris on the processing equipment and workpiece, extending the service life of the equipment and improving the processing efficiency. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a three-dimensional structural schematic diagram of a high-precision CNC lathe rotary table positioning device according to this application;

[0026] Figure 2 This is a bottom view of the structure of a high-precision CNC lathe rotary table positioning device according to this application;

[0027] Figure 3 This is a schematic diagram of the base and internal structure of the housing of a high-precision CNC lathe rotary table positioning device according to this application;

[0028] Figure 4 This is a schematic diagram of structure A of a high-precision CNC lathe rotary table positioning device according to this application.

[0029] In the diagram: 1. Base; 101. Lead screw; 102. Lead screw seat; 103. Positioning seat; 2. Support plate; 204. Rack plate; 205. Gear; 3. Top plate; 301. Hydraulic cylinder; 302. Lifting plate; 4. Machine housing; 401. Motor; 5. Worktable; 501. Fixed seat; 502. Electric cylinder; 503. Extrusion plate; 6. Vacuum cleaner; 601. Vacuum hood; 7. Seat hole; 8. First plate hole; 9. Second plate hole. Detailed Implementation

[0030] The technical solution of this application will be clearly and completely described below with reference to specific embodiments. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0031] See Figures 1-4This application provides a high-precision CNC lathe rotary table positioning device, including a base 1 with two cavities inside. A support plate 2 is fixedly installed on the rear side of the base 1, and a top plate 3 is fixedly installed on the top front side of the support plate 2. A wire-moving mechanism is installed inside the cavity. A positioning mechanism is installed on the top of the base 1, and a lifting mechanism is installed on the top plate 3. A worktable 5 is rotatably installed on the top of the base 1. Fixed seats 501 are fixedly installed on both sides of the top of the worktable 5, and clamping mechanisms are installed on the fixed seats 501. A housing 4 is fixedly installed at the bottom of the base 1. A motor 401 is fixedly installed on the inner wall of the bottom of the housing 4. The top end of the output shaft of the motor 401 is fixedly connected to the bottom of the worktable 5. The output shaft of the motor 401 is located between the two cavities. Two seat holes 7 are opened on the top of the base 1, and the worktable 5 is located between the two seat holes 7. Two first plate holes 8 are opened on the top of the base 1, and the first plate holes 8 are located outside the seat holes 7. Two second plate holes 9 are opened on the bottom of the base 1, and the first plate holes 8 and the second plate holes 9 are connected to the cavities.

[0032] Specifically, the lead screw mechanism includes two lead screws 101 and two lead screw seats 102. The same lead screw 101 is rotatably installed on the inner walls of both sides of the cavity. The lead screw 101 is threaded with a lead screw seat 102. The lead screw seat 102 is slidably connected to the corresponding seat hole 7. The two lead screws 101 are provided with external threads with opposite directions of rotation.

[0033] Specifically, the positioning mechanism includes a positioning seat 103 and a V-groove. The positioning seat 103 is fixedly installed on one side of each of the two lead screw seats 102. A V-groove is opened on one side of each of the two positioning seats 103, and the V-groove is adapted to the worktable 5.

[0034] Specifically, the lifting mechanism includes a hydraulic cylinder 301 and a lifting plate 302. The hydraulic cylinder 301 is fixedly installed on the top of the top plate 3. The bottom end of the output shaft of the hydraulic cylinder 301 passes through the bottom of the top plate 3. The lifting plate 302 is fixedly installed on the bottom end of the output shaft of the hydraulic cylinder 301. The rear side of the lifting plate 302 is slidably connected to the front side of the support plate 2. A gear mechanism is provided between the lifting plate 302 and the lead screw 101. A dust collection mechanism is provided between the lifting plate 302 and the top plate 3.

[0035] Specifically, the gear mechanism includes a rack plate 204 and a gear 205. The rack plate 204 is fixedly installed on the top of the lifting plate 302. The rack plate 204 is slidably connected to the first plate hole 8 and is adapted to the second plate hole 9. The gear 205 is fixedly sleeved on the lead screw 101. The gear 205 is located outside the corresponding lead screw seat 102. The rack plate 204 meshes with the corresponding gear 205.

[0036] Specifically, the clamping mechanism includes an electric cylinder 502 and a pressing plate 503. The electric cylinder 502 is fixedly installed on the outside of the fixed base 501. The output shaft of the electric cylinder 502 extends to the inside of the fixed base 501. The pressing plate 503 is fixedly installed on the output shaft of the electric cylinder 502. A rubber pad is provided on the inside of the pressing plate 503.

[0037] Specifically, the vacuuming mechanism includes a vacuum cleaner 6, a vacuum hood 601, and a telescopic hose. The vacuum cleaner 6 is installed on the top of the top plate 3, and the vacuum hood 601 is fixedly installed on the rear side of the bottom of the lifting plate 302. The same telescopic hose is provided between the vacuum hood 601 and the vacuum cleaner 6.

[0038] Specifically, the same fixing rod is fixedly installed on the inner walls of both sides of the cavity. The fixing rod is located below the lead screw 101, and the lead screw seat 102 is slidably sleeved on the corresponding fixing rod.

[0039] In this application, during operation, the operator first places the workpiece on the worktable 5, starts the electric cylinder 502 on the fixed seat 501, and the electric cylinder 502 pushes the extrusion plate 503 and firmly clamps the workpiece through the rubber pad, which can achieve the purpose of providing a stable foundation for the subsequent processing of the workpiece.

[0040] After the workpiece is securely clamped, the motor 401 is started. Its output shaft drives the worktable 5 to rotate on the top of the base 1, providing rotary motion for workpiece processing, meeting processing requirements at different angles, and improving processing flexibility and versatility. When the worktable 5 rotates to the required processing position, the hydraulic cylinder 301 is started. Its output shaft pushes the lifting plate 302 down along the front side of the support plate 2. The lifting plate 302 drives the rack plate 204 to slide downward in the first plate hole 8. The rack plate 204 meshes with the gear 205 on the lead screw 101, thereby driving the lead screw 101 to rotate. Since the two lead screws 101 are provided with external threads with opposite directions of rotation, the two lead screw seats 102 will slide towards each other along the fixed rod located below the lead screw 101. The lead screw seats 102 drive the positioning seat 103 to move, so that the V-groove on the positioning seat 103 can fit tightly with the worktable 5, achieving high-precision positioning of the worktable 5, ensuring the stability of the workpiece position during processing, and improving processing accuracy and quality.

[0041] At the same time, as the lifting plate 302 descends, the dust hood 601 installed at the bottom rear of it approaches the processing area. The vacuum cleaner 6 on the top of the top plate 3 is connected to the dust hood 601 through a telescopic hose, which can promptly remove the debris generated during processing, keep the work area clean, reduce the impact of debris on processing equipment and workpieces, extend the service life of equipment, and improve processing efficiency.

Claims

1. A high-precision numerical control lathe rotary table positioning device, characterized in that, The utility model provides a kind of double-sided automatic positioning and clamping device, including base (1), two cavities are set in the base (1), support plate (2) is fixedly installed on the rear side of the base (1), top plate (3) is fixedly installed on the front side top of the support plate (2), wire drive mechanism is provided in the cavity, positioning mechanism is provided on the top of the base (1), lifting mechanism is provided on the top plate (3), workbench (5) is rotatably installed on the top of the base (1), fixed seat (501) is fixedly installed on the both sides of the top of the workbench (5), clamping mechanism is provided on the fixed seat (501). The utility model discloses a kind of double-sided automatic positioning and clamping device, including base (1), two cavities are set in the base (1), support plate (2) is fixedly installed on the rear side of the base (1), top plate (3) is fixedly installed on the front side top of the support plate (2), wire drive mechanism is provided in the cavity, positioning mechanism is provided on the top of the base (1), lifting mechanism is provided on the top plate (3), workbench (5) is rotatably installed on the top of the base (1), fixed seat (501) is fixedly installed on the both sides of the top of the workbench (5), clamping mechanism is provided on the fixed seat (501).

2. The high-precision numerical control lathe rotary table positioning device according to claim 1, characterized in that: The wire drive mechanism includes two lead screws (101) and two lead screw seats (102), the same lead screw (101) is rotatably installed on the both sides of the cavity, the lead screw (101) is threadedly sleeved with the lead screw seat (102), the lead screw seat (102) is slidably connected with the corresponding seat hole (7), the two lead screws (101) are provided with external threads in opposite directions.

3. The high-precision numerical control lathe rotary table positioning device according to claim 2, characterized in that: The positioning mechanism includes a positioning seat (103) and a V-shaped groove, the positioning seat (103) is fixedly installed on one side adjacent to the two lead screw seats (102), the V-shaped groove is formed on one side adjacent to the two positioning seats (103), and the V-shaped groove is matched with the workbench (5).

4. The high-precision numerical control lathe rotary table positioning device according to claim 1, characterized in that: The lifting mechanism includes a hydraulic cylinder (301) and a lifting plate (302), the hydraulic cylinder (301) is fixedly installed on the top of the top plate (3), the output shaft of the hydraulic cylinder (301) penetrates through the bottom of the top plate (3), the lifting plate (302) is fixedly installed on the bottom of the output shaft of the hydraulic cylinder (301), the lifting plate (302) is slidably connected with the front side of the support plate (2), the gear mechanism is arranged between the lifting plate (302) and the lead screw (101), and the dust collection mechanism is arranged between the lifting plate (302) and the top plate (3).

5. The high-precision numerical control lathe rotary table positioning device according to claim 4, characterized in that: The gear mechanism includes a rack plate (204) and a gear (205), the rack plate (204) is fixedly installed on the top of the lifting plate (302), the rack plate (204) is slidably connected with the first plate hole (8), the rack plate (204) is matched with the second plate hole (9), the gear (205) is fixedly sleeved on the lead screw (101), the gear (205) is located on the outside of the corresponding lead screw seat (102), and the rack plate (204) is engaged with the corresponding gear (205).

6. The high-precision numerical control lathe rotary table positioning device according to claim 1, characterized in that: The clamping mechanism comprises an electric cylinder (502) and a pressing plate (503), the electric cylinder (502) is fixedly installed outside the fixed seat (501), the output shaft of the electric cylinder (502) extends to the inside of the fixed seat (501), the pressing plate (503) is fixedly installed on the output shaft of the electric cylinder (502), and the inside of the pressing plate (503) is provided with a rubber pad.

7. The high-precision numerical control lathe rotary table positioning device according to claim 4, characterized in that: The dust collection mechanism comprises a dust collector (6), a dust collection cover (601) and a flexible hose, the top plate (3) is provided with the dust collector (6) at the top, the bottom of the lifting plate (302) is fixedly installed with the dust collection cover (601) at the back side, and the dust collection cover (601) and the dust collector (6) are provided with the same flexible hose.

8. The high-precision numerical control lathe rotary table positioning device according to claim 2, characterized in that: The same fixed rod is fixedly installed on the inner walls of the two sides of the cavity, the fixed rod is located below the lead screw (101), and the lead screw seat (102) is slidably sleeved on the corresponding fixed rod.

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