CN219901075U

CN219901075U - Rotary positioning mechanism of numerical control machine tool

Info

Publication number: CN219901075U
Application number: CN202321176756.2U
Authority: CN
Inventors: 向海君; 陆宏阳
Original assignee: Taizhou Jinchi Intelligent Equipment Technology Co ltd
Current assignee: Taizhou Jinchi Intelligent Equipment Technology Co ltd
Priority date: 2023-05-15
Filing date: 2023-05-15
Publication date: 2023-10-27
Anticipated expiration: 2033-05-15

Abstract

The utility model provides a rotary positioning mechanism of a numerical control machine tool, which comprises a rotating plate and a rotary table, wherein the rotary table can rotate relative to the rotating plate, the rotating plate is provided with an arc-shaped braking plate, a plurality of braking clamps are arranged on the rotary table through connecting plates, the braking clamps rotate along with the rotary table, each braking clamp comprises two groups of pistons and two braking blocks, the braking plate is positioned between the two braking blocks, the pistons drive the braking blocks to move in a direction approaching to or far from the braking plate, and after the rotary table rotates to a set angle, the pistons drive the braking blocks to move in a direction approaching to the braking plate, and the two braking blocks are abutted against the braking plate to realize positioning of the rotary table. Compared with the prior art, the rotary positioning mechanism of the numerical control machine tool comprises a braking plate and three groups of braking clamps, when the turntable rotates to a set angle, the piston drives the braking plate to move in a direction close to the braking plate, and the two braking plates are abutted against the braking plate to lock, brake and position the turntable.

Description

Rotary positioning mechanism of numerical control machine tool

Technical Field

The utility model belongs to the technical field of numerical control machine tools, and relates to a rotary positioning mechanism of a numerical control machine tool.

Background

The traditional deep hole drilling machine can not directly process the inclined hole, even if the inclined hole is to be processed, the inclined hole is assisted by manufacturing a complex fixture, inconvenience is brought to the processing, and a large amount of clamping time is wasted. For this situation, a milling and drilling machine appears on the market, such as chinese patent No.: the six-axis four-linkage double-spindle milling and drilling machine of 201620794597.6 has the specific structure that: the sliding table is pivoted with a ram through a pivot structure. The two ends of the sliding table are provided with bosses protruding out of the surface end face of the sliding table, the rear side of the ram is provided with an arc-shaped pressing plate, the bosses are arranged between the arc-shaped pressing plate rams, and the bosses are attached to the arc-shaped pressing plate. The circular arc-shaped pressing plate is internally provided with a locking cylinder, an output shaft of the locking cylinder faces the boss, a connecting plate is connected to the output shaft of the locking cylinder, a plastic-sticking soft belt with wear resistance is stuck on one surface of the connecting plate facing the boss, and the locking cylinder drives the connecting plate to abut against or be far away from the boss so as to lock or unlock the boss with guidance. When the ram rotates to a set angle, the boss and the ram are locked through the piston cylinder, so that the geometric accuracy of the machine tool is ensured, and the ram is prevented from moving in the drilling process. In the structure, the locking cylinder drives the connecting plate to abut against or be far away from the boss so as to realize locking or loosening the boss with guiding performance, but the ram is larger in size and heavier in weight, the connecting plate is driven by the locking cylinder to abut against the boss, the abutting locking force is limited, the ram is difficult to lock in a short time, deviation of a drilling angle is caused, and the drilling quality is influenced; and when the locking cylinder is damaged, the ram cannot be locked, and at the moment, drilling cannot be performed, so that the production progress is greatly influenced.

Disclosure of Invention

The utility model aims to solve the problems in the prior art and provides a rotation positioning mechanism of a numerical control machine tool.

The aim of the utility model can be achieved by the following technical scheme: the utility model provides a rotation positioning mechanism of digit control machine tool, includes revolving plate and revolving stage, the revolving stage can for the revolving plate rotates, curved braking vane is installed to the revolving plate, install a plurality of brake pincers through the connecting plate on the revolving stage, the brake pincers follow the revolving stage is rotatory, the brake pincers include two sets of pistons and two brake blocks, the braking vane is located two between the brake blocks, the piston drives the brake block is toward being close to or keeping away from the direction of braking vane removes, works as after the revolving stage rotates to the settlement angle, the piston drives the brake block is toward being close to the direction of braking vane removes, two the brake block butt the braking vane realizes the location of revolving stage.

In the rotation positioning mechanism of the numerical control machine tool, three groups of brake calipers are arranged.

In the rotary positioning mechanism of the numerical control machine tool, a boss is arranged on the rotary plate, the braking plate is arranged on the boss, and part of the braking plate protrudes out of the boss and is positioned between the two braking blocks.

In the rotation positioning mechanism of the numerical control machine tool, the numerical control machine tool further comprises a machine body, wherein the machine body is provided with a stand column moving motor, a stand column is slidably arranged on the machine body, an output shaft of the stand column moving motor drives the stand column to transversely move through a ball screw, a sliding table moving motor is arranged at the top of the stand column, a sliding table is slidably arranged on the stand column, an output shaft of the sliding table moving motor drives the sliding table to vertically move through the ball screw, and the rotating plate is fixedly connected to the sliding table.

In the rotary positioning mechanism of the numerical control machine tool, a milling spindle is arranged at the end part of the rotary table, a milling motor is arranged on the rotary table, and an output shaft of the milling motor is connected with the milling spindle.

In the rotation positioning mechanism of the numerical control machine tool, the rotary table is far away from the table top of the upright post, a transmission motor and a transmission screw rod are arranged on the rotary table, a drill spindle box is further arranged on the rotary table in a sliding mode, an output shaft of the transmission motor is connected with a screw rod of the transmission screw rod, a screw rod nut is sleeved outside the screw rod of the transmission screw rod, the screw rod nut is connected with the drill spindle box, the transmission motor drives the screw rod of the transmission screw rod to rotate, so that the screw rod nut and the drill spindle box are driven to transversely move relative to the rotary table, a rotating motor is arranged in the drill spindle box, an output shaft of the rotating motor is connected with the drill spindle, and the rotating motor drives the drill spindle to rotate, and the rotating motor and the drill spindle synchronously transversely move along with the drill spindle box.

Compared with the prior art, the rotary positioning mechanism of the numerical control machine tool comprises a braking plate and three groups of braking clamps, when the turntable rotates to a set angle, the piston drives the braking plates to move in a direction close to the braking plate, and the two braking plates are abutted against the braking plate to lock, brake and position the turntable; the brake caliper is provided with three groups, so that the brake force is high, the quick locking of the turntable is realized, the drilling angle is positioned more accurately, the drilling quality is higher, and the turntable is prevented from moving in the drilling process; and the setting of multiunit brake caliper can also prevent that the condition that the revolving stage can't be locked from appearing, even a set of brake caliper damages, the revolving stage still can be locked by other brake calipers, does not influence the production progress.

Drawings

Fig. 1 is a schematic structural view of the present utility model.

Fig. 2 is a schematic perspective view of a rotating mechanism and a rotating plate in the present utility model.

Fig. 3 is a schematic perspective view of a part of the structure of the present utility model.

In the figure, 1, a lathe bed; 2. a column; 3. a rotating plate; 31. a mounting groove; 32. a brake caliper; 33. a brake pad; 34. a guide plate; 35. a guide surface; 36. a connecting plate; 37. a guide block; 38. a contact surface; 39. inserting the protruding block; 310. an insertion groove; 311. a brake plate; 4. a turntable; 5. milling a main shaft; 6. drilling a main shaft; 7. a rotating mechanism; 71. a gear strip; 72. a driving wheel; 73. a driver; 74. a power motor; 75. installing a clamping block; 8. a screw; 9. milling a motor; 10. drilling a spindle box; 11. the slipway moves the electrical machinery.

Detailed Description

The following are specific embodiments of the present utility model and the technical solutions of the present utility model will be further described with reference to the accompanying drawings, but the present utility model is not limited to these embodiments.

As shown in fig. 1-3, the rotary positioning mechanism of the numerical control machine tool comprises a machine body 1, wherein a column moving motor is arranged on the machine body 1, a column 2 is arranged on the machine body 1 in a sliding manner, and an output shaft of the column moving motor drives the column 2 to transversely move through a ball screw. The top of stand 2 is installed slip table and is moved motor 11, and the slip table is provided with to the slip table on the stand 2 slip, and the output shaft of slip table removal motor 11 passes through ball and drives the slip table and reciprocate. The rotary table is fixedly connected with a rotary plate 3, the rotary plate 3 is provided with a rotary table 4, a rotating mechanism 7 is arranged between the rotary table 4 and the rotary plate 3, and the rotary mechanism 7 drives the rotary table 4 to enable the rotary table 4 to rotate relative to the rotary plate 3.

The technical scheme is as follows: the end part of the rotary table 4 is provided with a milling main shaft 5; a drill spindle 6 is arranged on the table surface of the turntable 4 far away from the upright post 2. The rotary table 4 is provided with a milling motor 9, an output shaft of the milling motor 9 is connected with the milling spindle 5, the milling motor 9 independently controls the milling spindle 5 to rotate, the milling spindle 5 is conveniently controlled, and the machining precision is improved. The rotary table 4 is provided with a transmission motor and a transmission screw, the rotary table 4 is also provided with a drill spindle box 10 in a sliding manner, an output shaft of the transmission motor is connected with a screw of the transmission screw, a screw nut is sleeved outside the screw of the transmission screw, and the screw nut is connected with the drill spindle box 10. The drive motor drives the screw of the drive screw to rotate, thereby driving the screw nut and the drill spindle box 10 to move transversely relative to the turntable 4. The drill spindle box 10 is internally provided with a rotating motor, an output shaft of the rotating motor is connected with the drill spindle 6, the rotating motor drives the drill spindle 6 to rotate, and the rotating motor and the drill spindle 6 synchronously move transversely along with the drill spindle box 10.

During drilling, the rotary motor drives the drill spindle 6 to rotate, the transmission motor drives the drill spindle box 10, the rotary motor and the drill spindle 6 to transversely move, and the end part of the drill spindle 6 gradually transversely moves towards the direction close to a workpiece while the drill spindle 6 rotates, so that drilling on the workpiece is realized. The rotary mechanism 7 drives the turntable 4 to rotate so that the drill spindle 6 can process inclined holes. The milling and drilling double-spindle structure is adopted on the rotary table 4, the milling spindle 5 and the drilling spindle 6 are separated, the switching is simple and easy, the degree of automation is improved, the labor intensity of operators is reduced, the machining error can be effectively reduced, and the machining precision is improved.

The technical scheme is as follows: the rotation mechanism 7 includes a gear 71, a transmission wheel 72, a driver 73, and a power motor 74. The gear strip 71 is arc-shaped, the gear strip 71 is arranged on the rotating plate 3, the outer side surface of the gear strip 71 is provided with transmission teeth, and the transmission teeth are helical teeth. The driver 73 is installed on the turntable 4, a transmission shaft is arranged on the driver 73, the transmission wheel 72 is installed at the end part of the transmission shaft, and the transmission wheel 72 is a bevel gear. The drive wheel 72 is engaged with the drive teeth. The power motor 74 is arranged above the driver 73, the power motor 74 drives a transmission shaft in the driver 73 to rotate through a gearbox, the transmission wheel 72 synchronously rotates along with the rotation shaft and moves along the gear strip 71, the transmission wheel 72 moves along the gear strip 71 and simultaneously drives the driver 73 and the turntable 4 to move along the gear strip 71, and the rotation of the turntable 4 relative to the rotating plate 3 is realized because the gear strip 71 is arc-shaped. By controlling the power motor 74 to rotate forward or backward, the turntable 4 can be controlled to rotate clockwise or counterclockwise with respect to the turntable 3. The arc-shaped gear bars 71 and the driving wheels 72 are matched and driven stably, and the rotary table 4 moves stably along the gear bars 71, so that stable rotation of the rotary table 4 is realized, and the rotary table rotates smoothly. The arc-shaped gear strips 71 are adopted, the size is small, the weight is light, the production materials and the production cost are saved, the disassembly and the installation are convenient, and the installation space on the excessive rotating plate 3 is not occupied. By using helical gears, the service life of the drive wheel 72 can be increased, and a greater load can be borne, reducing the jitter and noise generated by the drive, and improving the precision of the present utility model.

The technical scheme is as follows: an arc-shaped mounting groove 31 is formed in the rotating plate 3, an arc-shaped mounting clamping block 75 is formed in the back of the gear strip 71, the mounting clamping block 75 is clamped into the mounting groove 31, and a plurality of screws 8 penetrate through the gear strip 71 and fix the gear strip 71 at the bottom of the mounting groove 31. The installation fixture block 75 and the installation groove 31 position the installation of the gear strip 71, so that the installation accuracy of the gear strip 71 is higher, the gear strip 71 is prevented from moving relative to the rotating plate 3 in the operation process, and the gear strip 71 is prevented from being deformed under the stress. The screw 8 is installed so that the installation and maintenance of the gear strip 71 are convenient.

The technical scheme is as follows: the rotating plate 3 is also connected with a guide plate 34, the side surface of the guide plate 34 is provided with an arc-shaped guide surface 35, and an insertion groove 310 is formed between the guide plate 34 and the rotating plate 3. The turntable 4 is also provided with a guide block 37, and the side surface of the guide block 37 is provided with an arc-shaped contact surface 38 and an insertion lug 39. The insertion projection 39 is located in the insertion groove 310.

The technical scheme is as follows: the rotary plate 3 is provided with a boss, an arc-shaped braking plate 311 is arranged on the boss, and part of the braking plate 311 protrudes out of the boss. The turntable 4 is provided with a plurality of brake calipers 32 by connecting plates 36, the brake calipers 32 rotate along with the turntable 4, and one of the connecting plates 36 is omitted in fig. 3. The brake caliper 32 comprises two sets of pistons and two brake pads 33, the brake pad 311 is located between the two brake pads 33, and the pistons drive the brake pads 33 to move in a direction approaching or separating from the brake pad 311. When the turntable 4 rotates to a set angle, the piston drives the brake pads 33 to move towards the direction close to the braking plate 311, and the two brake pads 33 abut against the braking plate 311 to lock, brake and position the turntable 4. The three groups of brake calipers 32 are arranged, so that the quick locking of the turntable 4 is realized, the drilling angle positioning is more accurate, the drilling quality is higher, and the turntable 4 is prevented from moving in the drilling process; and the arrangement of the plurality of groups of brake calipers 32 can also prevent the situation that the turntable 4 cannot be locked, even if one group of brake calipers 32 is damaged, the turntable 4 can still be locked by other brake calipers 32, and the production progress is not influenced.

The specific embodiments described herein are offered by way of example only to illustrate the spirit of the utility model. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the utility model or exceeding the scope of the utility model as defined in the accompanying claims.

Although the bed 1 is used more herein; a column 2; a rotating plate 3; a mounting groove 31; a brake caliper 32; a brake pad 33; a guide plate 34; a guide surface 35; a connection plate 36; a guide block 37; a contact surface 38; an insertion projection 39; an insertion groove 310; brake plate 311; a turntable 4; a milling spindle 5; a drill spindle 6; a rotation mechanism 7; a gear bar 71; a driving wheel 72; a driver 73; a power motor 74; mounting a clamping block 75; a screw 8; a milling motor 9; a drill spindle box 10; the slide table moves the motor 11 and the like, but the possibility of using other terms is not excluded. These terms are used merely for convenience in describing and explaining the nature of the utility model; they are to be interpreted as any additional limitation that is not inconsistent with the spirit of the present utility model.

What is not described in detail in this specification is prior art known to those skilled in the art. The specific embodiments described herein are offered by way of example only to illustrate the spirit of the utility model. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the utility model or exceeding the scope of the utility model as defined in the accompanying claims.

Claims

1. The utility model provides a rotation positioning mechanism of digit control machine tool, includes revolving stage (3) and revolving stage (4), revolving stage (4) can for revolving stage (3) rotate, its characterized in that revolving stage (3) are installed curved braking vane (311), install a plurality of brake pincers (32) through connecting plate (36) on revolving stage (4), brake pincers (32) are rotatory along with revolving stage (4), brake pincers (32) include two sets of pistons and two brake blocks (33), braking vane (311) are located two between brake blocks (33), the piston drives brake block (33) are close to or keep away from the direction of braking vane (311) is removed, works as behind revolving stage (4) rotate to the settlement angle, the piston drives brake block (33) are towards being close to the direction of braking vane (311) is removed, two brake blocks (33) butt braking vane (311) realize the location of revolving stage (4).

2. A rotary positioning mechanism for a numerically controlled machine tool according to claim 1, wherein said brake calipers (32) are provided in three groups.

3. The rotary positioning mechanism of a numerical control machine tool according to claim 1, characterized in that a boss is formed on the rotary plate (3), the braking plate (311) is mounted on the boss, and a part of the braking plate (311) protrudes from the boss and is positioned between two braking blocks (33).

4. A rotary positioning mechanism of a numerical control machine tool according to any one of claims 1-3, further comprising a machine body (1), wherein a column moving motor is installed on the machine body (1), a column (2) is slidably arranged on the machine body (1), an output shaft of the column moving motor drives the column (2) to move transversely through a ball screw, a sliding table moving motor (11) is installed at the top of the column (2), a sliding table is slidably arranged on the column (2), an output shaft of the sliding table moving motor (11) drives the sliding table to move up and down through the ball screw, and the rotating plate (3) is fixedly connected to the sliding table.

5. The rotary positioning mechanism of the numerical control machine tool according to claim 4, characterized in that a milling spindle (5) is arranged at the end part of the rotary table (4), a milling motor (9) is mounted on the rotary table (4), and an output shaft of the milling motor (9) is connected with the milling spindle (5).

6. The rotary positioning mechanism of a numerical control machine tool according to claim 5, characterized in that a drill spindle (6) is arranged on a table surface of the turntable (4) far away from the upright post (2), a transmission motor and a transmission screw are arranged on the turntable (4), a drill spindle box (10) is further arranged on the turntable (4) in a sliding mode, an output shaft of the transmission motor is connected with a screw of the transmission screw, a screw nut is sleeved outside the screw of the transmission screw, the screw nut is connected with the drill spindle box (10), the transmission motor drives the screw of the transmission screw to rotate, so that the screw nut and the drill spindle box (10) are driven to transversely move relative to the turntable (4), a rotary motor is arranged in the drill spindle box (10), an output shaft of the rotary motor is connected with the drill spindle (6), the rotary motor drives the drill spindle (6) to rotate, and the rotary motor and the drill spindle (6) synchronously move transversely along with the spindle box (10).