Angle-adjustable clamp for internal grinding machine

Abstract

The utility model discloses an angle-adjustable clamp for an internal grinding machine, which comprises an adjusting seat, a three-jaw chuck for fixing a workpiece is mounted on one side surface of the adjusting seat, a first spherical hinge is mounted at the center of the other side surface of the adjusting seat, the first spherical hinge is connected with one end of a connecting rod, and a mounting seat is mounted at the other end of the connecting rod. A plurality of telescopic rods are arranged on the side surface, facing the adjusting seat, of the mounting seat, and second spherical hinges are mounted at the ends of the telescopic rods and mounted on the side surface of the adjusting seat. The three-jaw chuck is adopted to fix the workpiece to be machined, the adjusting base is connected with the connecting rod through the first spherical hinge, so that the adjusting base can drive the three-jaw chuck to flexibly adjust the angle, the automatic machining device is suitable for automatic machining of non-standard circular workpieces or workpieces needing multi-angle machining, repeated machining is not needed, and the machining efficiency and the machining precision of the workpieces are greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of workpiece processing technology, specifically to an angle-adjustable fixture for an internal grinding machine. Background Technology

[0002] Internal grinding machines are instruments used in the cutting process and equipment industry. They are primarily used for grinding the surfaces and end faces of cylindrical, conical, or other shaped internal holes formed by generatrices. In existing internal grinding machines, traditional fixtures often cannot meet the need for flexible adjustment for workpieces of different shapes and sizes, especially non-standard circular workpieces or workpieces requiring multi-angle machining. This often necessitates multiple machining operations, resulting in low machining efficiency and insufficient accuracy. Therefore, we propose an angle-adjustable fixture for internal grinding machines. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the existing defects and provide an angle-adjustable fixture for an internal cylindrical grinding machine. The fixture uses a three-jaw chuck to fix the workpiece to be processed, and the adjusting seat is connected to the connecting rod through a first ball hinge, so that it can drive the three-jaw chuck to flexibly adjust the angle. It is suitable for automated processing of non-standard circular workpieces or workpieces that require multi-angle processing, which greatly improves the processing efficiency and the processing accuracy of the workpiece, and can effectively solve the problems in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: an angle-adjustable fixture for an internal grinding machine, comprising an adjustment seat, wherein a three-jaw chuck for fixing a workpiece is mounted on one side surface of the adjustment seat, and a first ball hinge is mounted at the center of the other side surface of the adjustment seat. The first ball hinge is connected to one end of a connecting rod, and a mounting seat is mounted on the other end of the connecting rod. A plurality of telescopic rods are provided on the mounting seat facing the side surface of the adjustment seat, and a second ball hinge is mounted at the end of the telescopic rod. The second ball hinge is mounted on the side surface of the adjustment seat.

[0005] As a preferred embodiment of this invention, a first tilt sensor is mounted on the side surface of the adjusting seat.

[0006] As a preferred technical solution of this utility model, a rotating shaft is fixedly provided on the side surface of the mounting base away from the connecting rod. The rotating shaft is rotatably mounted on the outer inner cylindrical grinding machine body, and the rotating shaft can drive the mounting base to rotate under the drive of the driving device.

[0007] As a preferred technical solution of this utility model, a driven gear is provided on the outer peripheral surface of the rotating shaft, a motor base is provided below the rotating shaft, a drive motor is installed on one side surface of the motor base, the output shaft of the drive motor passes through the other side surface of the motor base and is connected to the driving gear, and the driving gear and the driven gear mesh with each other.

[0008] As a preferred technical solution of this utility model, the upper surface of the motor base is provided with an arc-shaped groove that matches the rotating shaft. The arc-shaped groove supports the rotating shaft, and the rotating shaft can rotate within the arc-shaped groove.

[0009] As a preferred embodiment of this utility model, a fixing block is installed on the lower side surface of the motor base, and a fixing hole is provided on the upper surface of the fixing block.

[0010] As a preferred embodiment of this invention, a second tilt sensor is mounted on the side surface of the mounting base.

[0011] As a preferred embodiment of this utility model, two telescopic rods are provided, and the second ball hinge between the telescopic rod and the adjusting seat is replaced with a hinged seat.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: a three-jaw chuck is used to fix the workpiece to be processed, and the adjusting seat is connected to the connecting rod through the first ball hinge, so that it can drive the three-jaw chuck to flexibly adjust the angle. By adjusting the length of the corresponding telescopic rod, the adjusting seat can be driven to tilt in various directions through the connecting rod and the first ball hinge, thereby adjusting the processing angle of the three-jaw chuck and the workpiece. It is suitable for automated processing of non-standard round or multi-angle workpieces, without the need for multiple processing, which greatly improves the processing efficiency and the processing accuracy of the workpiece. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a front view structural diagram of the present utility model;

[0015] Figure 3 This is a side view of the structure of this utility model;

[0016] Figure 4 This is a schematic diagram of another embodiment of the present invention.

[0017] In the diagram: 1 Adjustment seat, 2 Three-jaw chuck, 3 Connecting rod, 4 Mounting seat, 5 Rotating shaft, 6 Motor seat, 7 Drive motor, 8 Driving gear, 9 Driven gear, 10 Fixing block, 11 Fixing hole, 12 Telescopic rod, 13 Second ball hinge, 14 First tilt sensor, 15 Second tilt sensor, 16 Hinge seat, 17 First ball hinge. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figure 1-3 This utility model provides a technical solution: an angle-adjustable fixture for an internal grinding machine, including an adjusting seat 1. A three-jaw chuck 2 for fixing a workpiece is mounted on one side surface of the adjusting seat 1. A first ball hinge 17 is mounted at the center of the other side surface of the adjusting seat 1, and the first ball hinge 17 is connected to one end of a connecting rod 3. The workpiece to be processed is fixed by the three-jaw chuck 2. The adjusting seat 1 is connected to the connecting rod 3 via the first ball hinge 17, allowing it to flexibly adjust the angle of the three-jaw chuck 2. A mounting base 4 is mounted on the other end of the connecting rod 3. Four to twelve telescopic rods 12 are arranged on the side surface of the mounting base 4 facing the adjusting seat 1. The telescopic rods 12 are preferably electric push rods followed by cylinders or hydraulic... The cylinder, etc., and the telescopic rod 12 is electrically connected to the controller of the external internal grinding machine. The controller adopts the control system controller commonly used in internal grinding machines, such as the HEIDENHAIN TNC series controller. A second ball hinge 13 is installed at the end of the telescopic rod 12. The second ball hinge 13 is installed on the side surface of the adjusting seat 1. By adjusting the length of the telescopic rod 12 in the corresponding position and number, the adjusting seat 1 can be driven to tilt in various directions through the connecting rod 3 and the first ball hinge 17, thereby adjusting the machining angle of the three-jaw chuck 2 and the workpiece. It is suitable for the automated machining of non-standard round or multi-angle workpieces, without the need for multiple machining operations, which greatly improves the machining efficiency and the machining accuracy of the workpiece.

[0020] In a preferred embodiment, a first tilt sensor 14 is installed on the side surface of the adjusting seat 1 to detect the tilt angle of the adjusting seat 1. The first tilt sensor 14 is electrically connected to the controller of the external internal grinding machine. When the controller adjusts the angle between the adjusting seat 1 and the three-jaw chuck 2 through the telescopic rod 12, the first tilt sensor 14 transmits the angle change value of the adjusting seat 1 to the controller. The controller automatically controls and adjusts the tilt of the adjusting seat 1 according to the angle change value, making the control more precise and improving the degree of automation.

[0021] In the preferred embodiment, a rotating shaft 5 is fixedly mounted on the side of the mounting base 4 away from the connecting rod 3. The rotating shaft 5 is rotatably mounted on the external internal grinding machine body. The rotating shaft 5 can drive the mounting base 4 to rotate under the drive of the drive device, thereby causing the adjusting base 1 and the three-jaw chuck 2 to rotate. This allows the workpiece to be adjusted in the vertical direction while rotating on the horizontal axis, making it suitable for internal grinding machine processing with different needs. At the same time, it eliminates the need for more telescopic rods 12. Only 2-4 telescopic rods are needed to tilt the workpiece in any direction, achieving stepless adjustment.

[0022] Specifically, a driven gear 9 is provided on the outer peripheral surface of the rotating shaft 5, and a motor base 6 is provided below the rotating shaft 5. A drive motor 7 is mounted on one side surface of the motor base 6. The drive motor 7 is electrically connected to the controller of the external internal cylindrical grinding machine. The output shaft of the drive motor 7 passes through the other side surface of the motor base 6 and is connected to the driving gear 8. The driving gear 8 and the driven gear 9 mesh with each other. The drive motor drives the driven gear 9 to rotate through the driving gear 8, which in turn drives the mounting base 4 and the adjusting base 1 to rotate through the rotating shaft 5. The rotation of the workpiece is controlled by the gear meshing, making the control and adjustment more precise and further improving the machining accuracy of the workpiece.

[0023] In a further preferred technical solution, the upper surface of the motor base 6 is provided with an arc-shaped groove that matches the rotating shaft 5. The arc-shaped groove supports the rotating shaft 5, and the rotating shaft 5 can rotate within the arc-shaped groove. When the rotating shaft 5 drives the mounting base 4 and the adjusting base 1 to rotate, it is more stable, thus ensuring the processing quality of the workpiece.

[0024] In a further preferred embodiment, a second tilt sensor 15 is mounted on the side surface of the mounting base 4. The second tilt sensor 15 is electrically connected to the controller of the external internal grinding machine. The controller telescopic rod 12, the drive motor 7, the first tilt sensor 14, and the second tilt sensor 15 are all commonly used methods in the prior art. When the controller controls the drive motor 7 to drive the rotating shaft 5, the mounting base 4, and the adjusting base 1 to rotate through the driving gear 8 and the driven gear 9, the second tilt sensor 15 transmits the angle change value of the mounting base 4 to the controller. The controller automatically controls and adjusts the rotation angle of the mounting base 4 according to the angle change value, making the control more precise and further improving the degree of automation.

[0025] The controller, telescopic rod 12, drive motor 7, first tilt sensor 14 and second tilt sensor 15 used in this application are all commonly used electronic components in the prior art. Their specific structures, working principles and circuit connections are all well-known technologies and will not be described in detail here.

[0026] Optionally, a fixing block 10 is installed on the lower side surface of the motor base 6, and a fixing hole 11 is provided on the upper surface of the fixing block 10. The motor base 6 can be fixed to the table of the internal cylindrical grinding machine by installing bolts or the like in the fixing hole 11 of the fixing block 10.

[0027] Please see Figure 4 This utility model also provides another embodiment, which is largely the same as the previous embodiment, except that: when the mounting base 4 and the rotating shaft 5 are connected and can rotate, only two telescopic rods 12 can be set, and the second ball hinge 13 set between the telescopic rod 12 and the adjusting base 1 can be replaced with a hinge seat 16, so that the adjusting base 1 and the three-jaw chuck 2 can be tilted in different directions. The structure is simpler, and the production and maintenance costs of the fixture are reduced. At the same time, compared with the ball hinge, the hinge seat 16 has a longer stroke and a larger adjustable angle.

[0028] The parts not disclosed in this utility model are all prior art, and their specific structures, materials, and working principles will not be described in detail. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of this utility model, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An angle-adjustable fixture for an internal grinding machine, characterized in that: The device includes an adjustment seat (1), on one side surface of which a three-jaw chuck (2) for fixing the workpiece is installed. A first ball hinge (17) is installed at the center of the other side surface of the adjustment seat (1). The first ball hinge (17) is connected to one end of a connecting rod (3). A mounting seat (4) is installed at the other end of the connecting rod (3). Several telescopic rods (12) are provided on the side surface of the mounting seat (4) facing the adjustment seat (1). A second ball hinge (13) is installed at the end of the telescopic rod (12). The second ball hinge (13) is installed on the side surface of the adjustment seat (1).

2. The angle-adjustable fixture for an internal grinding machine according to claim 1, characterized in that: The first tilt sensor (14) is mounted on the side surface of the adjustment seat (1).

3. The angle-adjustable fixture for an internal grinding machine according to claim 1, characterized in that: A rotating shaft (5) is fixedly installed on the side surface of the mounting base (4) away from the connecting rod (3). The rotating shaft (5) is rotatably mounted on the outer inner cylindrical grinding machine body. The rotating shaft (5) can drive the mounting base (4) to rotate under the drive of the driving device.

4. The angle-adjustable fixture for an internal grinding machine according to claim 3, characterized in that: A driven gear (9) is provided on the outer peripheral surface of the rotating shaft (5). A motor base (6) is provided below the rotating shaft (5). A drive motor (7) is installed on one side surface of the motor base (6). The output shaft of the drive motor (7) passes through the other side surface of the motor base (6) and is connected to the driving gear (8). The driving gear (8) and the driven gear (9) mesh with each other.

5. The angle-adjustable fixture for an internal grinding machine according to claim 4, characterized in that: The upper surface of the motor base (6) is provided with an arc-shaped groove that matches the rotating shaft (5). The arc-shaped groove supports the rotating shaft (5), and the rotating shaft (5) can rotate within the arc-shaped groove.

6. The angle-adjustable fixture for an internal grinding machine according to claim 4, characterized in that: A fixing block (10) is installed on the lower side surface of the motor base (6), and a fixing hole (11) is provided on the upper surface of the fixing block (10).

7. An angle-adjustable fixture for an internal grinding machine according to claim 3, characterized in that: A second tilt sensor (15) is mounted on the side surface of the mounting base (4).

8. An angle-adjustable fixture for an internal grinding machine according to claim 3, characterized in that: Two telescopic rods (12) are provided, and the second ball hinge (13) between the telescopic rod (12) and the adjusting seat (1) is replaced by a hinge seat (16).

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