Double-spindle structure of grinding machine

Abstract

The utility model belongs to the technical field of grinding machines, and particularly relates to a double-spindle structure of a grinding machine. Comprising a main shaft seat, a first main shaft and a second main shaft, the first main shaft is arranged on a base, the base is driven by a first driving mechanism to move up and down on the main shaft seat to adjust the vertical position of the first main shaft, the first main shaft is driven by a second driving mechanism to rotate on the base to adjust the elevation angle, and the second main shaft is arranged on the main shaft seat; the first main shaft can ascend and descend and is suitable for machining workpieces of different sizes, universality is improved, the elevation angle of the first main shaft can be adjusted, grinding can be conducted at different angles, and the grinding effect is optimized. In addition, the first main shaft is further matched with the second main shaft, different machining tasks can be executed, errors caused by multiple times of clamping are avoided, and the grinding precision is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of grinding machine, especially a double spindle structure of grinding machine. BACKGROUND

[0002] Grinding machine is a machine tool for precision machining, mainly used for grinding the surface of workpiece to achieve high precision and high smoothness. Grinding machine is widely used in mechanical manufacturing, automobile, aerospace, mold and other industries.

[0003] For example, the utility model discloses a double spindle numerical control grinding machine (authorized announcement number CN 211967035U, application date 2020.01.10, announcement date 2020.11.20) discloses a double spindle numerical control grinding machine, the double spindle part of the double spindle numerical control grinding machine includes a spindle turntable fixedly arranged on the base and a spindle box fixedly arranged on the spindle turntable, the spindle box side is provided with two parallelly arranged first spindles and second spindles, and the length of the first spindle is longer than that of the second spindle, the spindle box is provided with a second servo motor and a third servo motor for controlling the rotation of the first spindle and the second spindle, and the rotation of the spindle turntable is controlled by a first servo motor arranged in the base.

[0004] The above-mentioned double spindle numerical control grinding machine can realize the machining of different length of workpieces, and cooperate with the spindle turntable to process inclined surface. However, the structure still has certain limitation: the elevation direction and height direction of the spindle cannot be adjusted, which leads to the limitation of machining range, and it is difficult to meet the machining demand of more complex workpiece. SUMMARY

[0005] The utility model aims at providing a double spindle structure of grinding machine which can grind at different angles and expand the machining range.

[0006] The utility model is realized as follows:

[0007] A double spindle structure of grinding machine, comprising a spindle seat, a first spindle and a second spindle, the first spindle is arranged on the base, the base is driven to move up and down on the spindle seat by the first driving mechanism to adjust the up and down position of the first spindle, and the first spindle is driven to rotate on the base by the second driving mechanism to adjust the elevation angle, and the second spindle is arranged on the spindle seat.

[0008] In the above-mentioned double spindle structure of grinding machine, the second spindle is driven to rotate on the spindle seat by the third driving mechanism to adjust the elevation angle.

[0009] In the double-spindle structure of the grinding machine, the first driving mechanism comprises a first driving member arranged on the spindle base, a first driving rod, the first driving member drives the first driving rod to act, the first driving rod is connected with the base to drive the base to move up and down on the spindle base, and the first spindle is further driven to adjust the up-down position.

[0010] In the double-spindle structure of the grinding machine, the second driving mechanism comprises a second driving member rotatably arranged on the spindle base, a worm arranged on the base, a worm wheel, a first arc-shaped guide rail and a second arc-shaped guide rail arranged on the first inner side wall and the second inner side wall of the base, the first spindle is arranged between the two inner side walls, the worm wheel is rotatably arranged on the first spindle, the first sliding block is eccentrically connected to the worm wheel, the first sliding block can move along the first arc-shaped guide rail, and the second sliding block is arranged on the first spindle and can move along the second arc-shaped guide rail.

[0011] In the double-spindle structure of the grinding machine, the fourth driving member is arranged on the second inner side wall in the up-down direction, the fourth driving member comprises a fourth driving rod capable of moving up and down, one end of a pull rope is fixed on the spindle base, the other end of the pull rope is fixed on the first spindle, and the pull rope is arranged around the top of the fourth driving rod, and the fourth driving member drives the pull rope to be always in a tension state.

[0012] In the double-spindle structure of the grinding machine, the third driving mechanism comprises a third driving member, a third driving rod, a rotating seat arranged at the front end of the second spindle, a first fixing seat and a second fixing seat arranged on the spindle base, the rotating seat is rotatably connected with the first fixing seat, the second fixing seat is provided with a lifting seat moving up and down, the lifting seat is connected with the tail end of the second spindle, and the lifting seat is connected with the third driving rod.

[0013] In the double-spindle structure of the grinding machine, the spindle base is provided with a partition plate, the front ends of the first spindle and the second spindle pass through the partition plate, a rough grinding wheel is arranged at the front end of the first spindle, and a fine grinding wheel is arranged at the front end of the second spindle.

[0014] Compared with the prior art, the utility model has the advantages of:

[0015] 1、The first spindle can be lifted, and is suitable for machining workpieces of different sizes, improves the versatility, and the first spindle and the second spindle can also adjust the elevation angle, can grind at different angles, optimize the grinding effect, and expand the machining range.

[0016] 2、The first arc-shaped guide rail and the second arc-shaped guide rail not only provide a path for adjusting the elevation angle of the first spindle, but also support the first spindle during adjustment, and the self-locking function of the worm wheel can prevent the sliding block from sliding without power. BRIEF DESCRIPTION OF DRAWINGS:

[0017] Figure 1 is the schematic diagram of the installation of the utility model;

[0018] Figure 2 is one of the local schematic diagrams of the first main shaft setting on the main shaft seat through the base;

[0019] Figure 3 is two of the local schematic diagrams of the first main shaft setting on the main shaft seat through the base;

[0020] Figure 4 is the schematic diagram of the front end of the second main shaft connecting with the first fixed seat through the rotating seat;

[0021] Figure 5 is the schematic diagram of the end of the second main shaft connecting with the third driving mechanism.

[0022] In the drawing: 1, main shaft seat; 2, first main shaft; 3, second main shaft; 4, base; 5, partition; 6, rough grinding wheel; 7, fine grinding wheel; 8, worm; 9, turbine; 10, first arc-shaped guide rail; 11, second arc-shaped guide rail; 12, mounting boss; 13, fourth driving part; 14, pull rope; 15, third driving part; 16, rotating seat; 17, first fixed seat; 18, second fixed seat; 19, lifting seat. DETAILED DESCRIPTION

[0023] The utility model will be further described below with specific embodiments:

[0024] As shown in Figures 1-5 the utility model provides a double main shaft structure of grinding machine, this double main shaft structure includes main shaft seat 1, first main shaft 2, second main shaft 3, first main shaft 2 sets up on base 4, base 4 is driven on main shaft seat 1 and moves up and down by first driving mechanism and adjusts the up-down position of first main shaft 2, and first main shaft 2 is driven on base 4 and rotates by second driving mechanism and adjusts the elevation angle, second main shaft 3 sets up on main shaft seat 1.

[0025] From the above, the first main shaft 2 of the utility model can be lifted, is suitable for the processing of workpieces of different sizes, improves the versatility, and the first main shaft 2 can also adjust the elevation angle, can be ground at different angles, and optimize the grinding effect.In addition, the first main shaft 2 of the utility model also cooperates with the second main shaft 3, can perform different processing tasks, avoids the error caused by multiple clamping, and improves the grinding precision.

[0026] In order to further optimize the processing effect, the second main shaft 3 of the utility model is driven on the main shaft seat 1 by the third driving mechanism and rotates to adjust the elevation angle.

[0027] In order to facilitate isolation, the main shaft seat 1 is provided with a partition 5, the front end of the first main shaft 2 and the second main shaft 3 passes through the partition 5, and a rough grinding wheel 6 is arranged at the front end of the first main shaft 2, and a fine grinding wheel 7 is arranged at the front end of the second main shaft 3.

[0028] The utility model only needs to clamp once, can realize rough grinding and fine grinding, improves precision and processing efficiency.

[0029] Since the first main shaft 2 can be lifted, the partition 5 is provided with a through hole capable of ensuring the lifting stroke of the first main shaft 2, and in order to avoid the flying chips, cooling liquid and the like generated in the grinding process from entering the main shaft seat 1, an organ stop is arranged in the through hole.

[0030] Further, the first driving mechanism comprises a first driving member arranged on the main shaft seat 1 and a first driving rod, the first driving member drives the first driving rod to act, and the first driving rod is connected with the base 4 to drive the base 4 to move up and down on the main shaft seat 1, thereby driving the first main shaft 2 to adjust the up and down position.

[0031] Specifically, the first driving member is a first motor, and the corresponding first driving rod is a first screw rod, the base 4 is threadedly connected with the first screw rod, and the lifting of the base 4 on the main shaft seat 1 is realized.

[0032] In order to improve the stability of lifting, the base 4 and the main shaft seat 1 can be connected through a guide rail and a sliding block.

[0033] In addition, as shown in the drawings, Figure 2 The second driving mechanism comprises a second driving member rotatably arranged on the main shaft seat 1, a worm 8 arranged on the base 4, a turbine 9, a first arc-shaped guide rail 10 and a second arc-shaped guide rail 11 arranged on the first inner side wall and the second inner side wall of the base 4, the first main shaft 2 is arranged between the two inner side walls, the turbine 9 is rotatably arranged on the first main shaft 2, and the first sliding block is eccentrically connected to the turbine 9. The first sliding block can move along the first arc-shaped guide rail 10. The second sliding block is also arranged on the first main shaft 2, and the second sliding block can move along the second arc-shaped guide rail 11. The first arc-shaped guide rail 10 and the second arc-shaped guide rail 11 of the utility model not only provide a path for adjusting the inclination angle of the first main shaft 2, but also support the first main shaft 2 during adjustment. The self-locking function of the turbine worm can prevent the sliding block from sliding when there is no power.

[0034] Specifically, the second driving member is a second motor, the worm 8 is driven to rotate by the second motor, a mounting boss 12 is arranged on the base 4, the worm 8 passes through the mounting boss 12, and when lifting, the base 4 moves along the upper part of the worm 8.

[0035] As shown in the drawings, Figure 3As shown, in order to realize the buffering of the first main shaft 2 when adjusting the elevation angle of the first main shaft 2, a fourth driving member 13 is arranged on the second inner side wall in the up-down direction, the fourth driving member 13 comprises a fourth driving rod capable of moving up and down, one end of a pull rope 14 is fixed on the main shaft base 1, the other end is fixed on the first main shaft 2, and the pull rope 14 is wound on the top of the fourth driving rod, and the fourth driving member 13 drives the pull rope 14 to be always in a tension state. In the embodiment, the fourth driving member 13 is a gas cylinder, and the corresponding fourth driving rod is a piston rod, and the pull rope 14 is wound on the top of the piston rod. In order to make the pull rope 14 move flexibly, the utility model also sets up a roller on the top of the piston rod, and the pull rope 14 is wound on the roller.

[0036] As shown in Figure 4 and Figure 5 The third driving mechanism comprises a third driving member 15, a rotating seat 16 arranged at the front end of the second main shaft 3, a first fixed seat 17 arranged on the main shaft base 1, and a second fixed seat 18, the rotating seat 16 is rotatably connected with the first fixed seat 17, the second fixed seat 18 is provided with a lifting seat 19 moving up and down, the lifting seat 19 is connected with the tail end of the second main shaft 3, the third driving member 15 comprises a third driving rod, and the lifting seat 19 is connected with the third driving rod.

[0037] The utility model rotating seat 16 rotatably connected with the first fixed seat 17 adopts a relatively stable mechanical structure, the up-down movement of the lifting seat 19 is driven by the third driving rod, so that the failure rate is reduced and the reliability of the system is improved.

[0038] In the embodiment, the third driving member 15 is a third motor, and the corresponding third driving rod is a screw rod, a threaded hole is arranged on the lifting seat 19, and the lifting seat 19 is screwed with the screw rod through the threaded hole. The third motor rotates to drive the screw rod to rotate, so that the lifting seat 19 is lifted.

[0039] In order to make the lifting stable, guide rails are arranged on the second fixed seat 18 in the up-down direction, and the lifting seat 16 is slidably connected with the guide rails through sliding blocks.

[0040] When adjusting the elevation angle of the second main shaft 3, the third driving member 15 acts to drive the lifting seat 19 to lift, and then drive the tail end of the second main shaft 3 to lift, and the front end of the second main shaft 3 rotates on the first fixed seat 17.

[0041] The above embodiment is only one of the preferred embodiments of the utility model, and does not limit the implementation range of the utility model, so that: all equivalent changes made according to the shape, structure and principle of the utility model should be covered in the protection scope of the utility model.

Claims

1. A double-spindle structure of a grinding machine, characterized by comprising: The utility model relates to a double-axis adjustable telescope, including main shaft seat (1), first main shaft (2), second main shaft (3), first main shaft (2) is arranged on the base (4), the base (4) is driven on main shaft seat (1) up and down movement adjustment first main shaft (2) up and down position, and first main shaft (2) is driven on the base (4) rotation adjustment elevation angle by second drive mechanism, second main shaft (3) is arranged on main shaft seat (1).

2. A double-spindle structure of a grinding machine according to claim 1, characterized in that: The second main shaft (3) is driven by a third drive mechanism to rotate on the main shaft seat (1) to adjust the elevation angle.

3. A double-spindle structure of a grinding machine according to claim 1 or 2, characterized in that: The first drive mechanism includes a first drive member and a first drive rod arranged on the main shaft seat (1), the first drive member drives the first drive rod to act, the first drive rod is connected with the base (4) to drive the base (4) to move up and down on the main shaft seat (1) and further drive the first main shaft (2) to adjust the up and down position.

4. A double-spindle structure of a grinding machine according to claim 1 or 2, characterized in that: The second drive mechanism includes a second drive member arranged on the main shaft seat (1), a worm (8) arranged on the base (4), a turbine (9), a first arc-shaped guide rail (10) and a second arc-shaped guide rail (11) arranged on the first inner side wall and the second inner side wall of the base (4), the first main shaft (2) is arranged between the two inner side walls, the turbine (9) is arranged on the first main shaft (2), and a first sliding block is eccentrically connected to the turbine (9), the first sliding block can move along the first arc-shaped guide rail (10), and a second sliding block is further arranged on the first main shaft (2), and the second sliding block can move along the second arc-shaped guide rail (11).

5. A double-spindle structure of a grinding machine according to claim 4, characterized in that: A fourth drive member (13) is arranged on the second inner side wall in the up and down direction, the fourth drive member (13) includes a fourth drive rod capable of moving up and down, one end of a pull rope (14) is fixed on the main shaft seat (1), the other end is fixed on the first main shaft (2), and the pull rope (14) is arranged on the top of the fourth drive rod, and the fourth drive member (13) drives the pull rope (14) to be always in a tension state.

6. A double-spindle structure of a grinding machine according to claim 2, characterized in that: The third drive mechanism includes a third drive member (15), a third drive rod, a rotating seat (16) arranged at the front end of the second main shaft (3), a first fixed seat (17) and a second fixed seat (18) arranged on the main shaft seat (1), the rotating seat (16) is rotatably connected with the first fixed seat (17), the second fixed seat (18) is provided with a lifting seat (19) moving up and down, the lifting seat (19) is connected with the tail end of the second main shaft (3), and the lifting seat (19) is connected with the third drive rod.

7. A double-spindle structure of a grinding machine according to claim 1 or 2, characterized in that: The main shaft seat (1) is provided with a partition (5), the front ends of the first main shaft (2) and the second main shaft (3) pass through the partition (5), a coarse grinding wheel (6) is arranged at the front end of the first main shaft (2), and a fine grinding wheel (7) is arranged at the front end of the second main shaft (3).

Images