Precision compensation device of numerical control machine tool

Abstract

The utility model discloses a numerical control machine tool precision compensation device which comprises an installation plate and a compensation threaded rod, a threaded sleeve is fixedly installed on one side of the installation plate, two limiting moving sliding grooves are symmetrically formed in the side, provided with the threaded sleeve, of the installation plate, a third connecting rod is fixedly installed at one end of the compensation threaded rod, and a second connecting rod is fixedly installed at the other end of the compensation threaded rod. A rotating knob is fixedly installed at the end, away from the compensation threaded rod, of the third connecting rod, and a moving seat is movably installed at the other end of the compensation threaded rod. According to the compensation device, the distance between the cutter and the part can be measured through the laser range finder, when errors exist in the distance, the rotary knob can be rotated, the compensation threaded rod moves in the threaded sleeve, the distance between the cutter and the part is adjusted, precision compensation is achieved, errors caused by various factors are reduced or eliminated, and the precision of the cutter is improved. Therefore, the precision and the stability of the machined part are improved, and a powerful guarantee is provided for efficient and high-precision machining of a numerical control machine tool.

Description

Technical Field

[0001] The utility model relates to the technical field of numerical control machine tools, in particular to a precision compensation device for numerical control machine tools. Background Art

[0002] CNC machine tools are automated machine tools equipped with a program control system. The CNC device sends various control signals through calculation processing to control the movement of the machine tool and automatically process parts according to the shape and size required by the drawing.

[0003] CNC machine tools need to be programmed before processing, and then the machine tool controls the tool movement according to the program. During the tool movement process, the initial position is the origin, and after cutting, the tool also needs to return to the origin. However, after multiple cutting processes, errors will occur, causing the origin position to deviate from the initial origin position, which can easily cause deviations in the subsequent workpiece processing and reduce the pass rate of the workpiece. Utility Model Content

[0004] The purpose of the utility model is to provide a precision compensation device for a numerically controlled machine tool to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a precision compensation device for a CNC machine tool comprises a mounting plate and a compensating threaded rod, a threaded sleeve is fixedly mounted on one side of the mounting plate, and two limit movable sliding grooves are symmetrically provided on one side of the mounting plate where the threaded sleeve is mounted, a connecting rod three is fixedly mounted on one end of the compensating threaded rod, a rotating knob is fixedly mounted on one end of the connecting rod three away from the compensating threaded rod, a moving seat is movably mounted on the other end of the compensating threaded rod, a connecting rod two is fixedly mounted on the side of the moving seat away from the compensating threaded rod, a tool mounting cap is fixedly mounted on the end of the connecting rod two away from the moving seat, a laser rangefinder is fixedly mounted on the side of the moving seat away from the compensating threaded rod, two connecting rods one are symmetrically fixedly mounted on the side of the moving seat away from the laser rangefinder, a moving sleeve ring is fixedly mounted on one end of the connecting rod one away from the moving seat, connecting columns are fixedly mounted on both sides of the bottom of the moving sleeve ring, and a limited movable sliding block is fixedly mounted on one end of the connecting column away from the moving sleeve ring.

[0006] Preferably, the compensating threaded rod is threadedly connected to the inner side of the threaded sleeve.

[0007] Preferably, the two limit movement sliding blocks are respectively slidably installed on the inner sides of the two limit movement sliding grooves.

[0008] Preferably, the movable collar is sleeved on the outer side of the compensating threaded rod.

[0009] Preferably, a connecting telescopic rod is fixedly mounted on one end of the rotating knob away from the connecting rod three, and a motor external cap is fixedly mounted on one end of the connecting telescopic rod away from the rotating knob.

[0010] Preferably, a rotating sleeve is fixedly mounted on a side of the movable seat away from the second connecting rod, and an end of the compensating threaded rod away from the third connecting rod is movably mounted on the inner side of the rotating sleeve.

[0011] Preferably, a machine tool connecting part is fixedly mounted on a side of the mounting plate away from the threaded sleeve.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows: the compensation device can measure the distance between the tool and the part through a laser rangefinder. When there is an error in the distance, the rotating knob can be turned, and the compensating threaded rod can be driven to rotate through the connecting rod 3, so that the compensating threaded rod moves inside the threaded sleeve, and the moving seat can be moved smoothly under the limit of the limit moving slider and the limit moving slide groove, so as to adjust the relative position between the moving seat and the mounting plate, so as to adjust the tool installed inside the tool mounting cap, adjust the distance between the tool and the part, and realize precision compensation, so as to reduce or eliminate errors caused by various factors, thereby improving the precision and stability of the processed parts, and providing a strong guarantee for the efficient and high-precision processing of CNC machine tools;

[0013] In addition, the motor external cap can be connected to an external drive motor, so that the motor external cap and the connecting telescopic rod are driven to rotate by the drive motor, thereby driving the rotating knob to rotate, and finally the compensating threaded rod is rotated, so as to realize mechanical adjustment, improve the use effect of the device, and improve the applicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the three-dimensional appearance structure of the utility model.

[0015] Figure 2 It is a schematic diagram of the three-dimensional structure of the utility model when viewed from above.

[0016] Figure 3 It is a schematic diagram of a partial three-dimensional structure of the utility model.

[0017] Figure 4 It is a schematic diagram of the partial appearance structure of the utility model.

[0018] In the figure: 1. Mounting plate; 2. Compensating threaded rod; 3. Moving seat; 4. Threaded sleeve; 5. Connecting rod one; 6. Connecting column; 7. Connecting rod two; 8. Tool mounting cap; 9. Laser rangefinder; 10. Rotating sleeve seat; 11. Moving sleeve ring; 12. Limit moving slider; 13. Connecting telescopic rod; 14. Motor external cap; 15. Rotating knob; 16. Machine tool connecting part; 17. Limit moving slide; 18. Connecting rod three. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1-Figure 4 The utility model provides a technical solution: a precision compensation device for a CNC machine tool, comprising a mounting plate 1 and a compensating threaded rod 2, a threaded sleeve 4 is fixedly mounted on one side of the mounting plate 1, the compensating threaded rod 2 is threadedly connected to the inner side of the threaded sleeve 4, two limited moving slide grooves 17 are symmetrically provided on one side of the mounting plate 1 where the threaded sleeve 4 is mounted, a connecting rod 3 18 is fixedly mounted on one end of the compensating threaded rod 2, a rotating knob 15 is fixedly mounted on the end of the connecting rod 3 18 away from the compensating threaded rod 2, a moving seat 3 is movably mounted on the other end of the compensating threaded rod 2, a connecting rod 2 7 is fixedly mounted on the side of the moving seat 3 away from the compensating threaded rod 2, a rotating sleeve seat 10 is fixedly mounted on the side of the moving seat 3 away from the connecting rod 2 7, the compensating threaded rod 2 One end away from connecting rod three 18 is movably mounted on the inner side of rotating sleeve 10, one end of connecting rod two 7 away from moving seat 3 is fixedly mounted with tool mounting cap 8, one side of moving seat 3 away from compensating threaded rod 2 is fixedly mounted with laser rangefinder 9, one side of moving seat 3 away from laser rangefinder 9 is symmetrically fixedly mounted with two connecting rods one 5, one end of connecting rod one 5 away from moving seat 3 is fixedly mounted with moving sleeve 11, connecting columns 6 are fixedly mounted on both sides of the bottom of moving sleeve 11, one end of connecting column 6 away from moving sleeve 11 is fixedly mounted with limited moving slider 12, two limited moving sliders 12 are respectively slidably mounted on the inner sides of two limited moving grooves 17, and moving sleeve 11 is sleeved on the outer side of compensating threaded rod 2.

[0021] The working principle of the above technical solution is as follows: the tool can be installed on the inner side of the tool mounting cap 8, and the distance between the tool and the part can be measured by the laser rangefinder 9 when the CNC machine tool is in operation. When there is an error in the distance, the rotating knob 15 can be turned, and the compensating threaded rod 2 can be driven to rotate through the connecting rod 3 18, so that the compensating threaded rod 2 can move inside the threaded sleeve 4, and the moving seat 3 can be moved smoothly under the limit of the limiting moving slider 12 and the limiting moving groove 17, so as to adjust the relative position between the moving seat 3 and the mounting plate 1, so as to adjust the tool installed inside the tool mounting cap 8, adjust the distance between the tool and the part, realize precision compensation, reduce or eliminate errors caused by various factors, thereby improving the precision and stability of the workpiece, and providing a strong guarantee for the efficient and high-precision processing of CNC machine tools.

[0022] In another embodiment, Figure 1-Figure 4 As shown, the end of the rotating knob 15 away from the connecting rod 3 18 is fixedly installed with the connecting telescopic rod 13, the end of the connecting telescopic rod 13 away from the rotating knob 15 is fixedly installed with the motor external cap 14, and the side of the mounting plate 1 away from the threaded sleeve 4 is fixedly installed with the machine tool connecting part 16.

[0023] In addition, the motor external cap 14 can be externally connected to a driving motor, so that the motor external cap 14 and the connecting telescopic rod 13 are driven by the driving motor to rotate, thereby driving the rotating knob 15 to rotate, and finally rotating the compensating threaded rod 2, which can achieve mechanical adjustment, improve the use effect of the device, and improve the applicability of the device. In addition, the compensating threaded rod 2 is directly connected to the driving device of the CNC machine tool through the set machine tool connecting piece 16.

[0024] Working principle: The tool can be installed on the inner side of the tool mounting cap 8, and the distance between the tool and the part can be measured by the laser rangefinder 9 when the CNC machine tool is in operation. When there is an error in the distance, the knob 15 can be turned, and the compensating threaded rod 2 can be driven to rotate through the connecting rod 3 18, so that the compensating threaded rod 2 can move inside the threaded sleeve 4, and the moving seat 3 can be moved smoothly under the limit of the limit moving slider 12 and the limit moving slot 17, so as to adjust the relative position between the moving seat 3 and the mounting plate 1, thereby realizing the installation on the tool mounting cap 8. The internal tool is adjusted to adjust the distance between the tool and the part to achieve precision compensation to reduce or eliminate errors caused by various factors. In addition, the motor external cap 14 can be connected to an external drive motor, so that the motor external cap 14 and the connecting telescopic rod 13 are driven by the drive motor to rotate, thereby driving the rotating knob 15 to rotate, and finally the compensation threaded rod 2 is rotated, which can achieve mechanical adjustment, improve the use effect of the device, and improve the applicability of the device. In addition, the compensation threaded rod 2 is directly connected to the drive device of the CNC machine tool through the set machine tool connector 16.

[0025] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A precision compensation device for a numerically controlled machine tool, comprising a mounting plate (1) and a compensating threaded rod (2), characterized in that: A threaded sleeve (4) is fixedly mounted on one side of the mounting plate (1), and two limit movable sliding grooves (17) are symmetrically provided on the side of the mounting plate (1) on which the threaded sleeve (4) is mounted. A connecting rod three (18) is fixedly mounted on one end of the compensating threaded rod (2), and a rotating knob (15) is fixedly mounted on the end of the connecting rod three (18) away from the compensating threaded rod (2). A moving seat (3) is movably mounted on the other end of the compensating threaded rod (2), and a connecting rod two (7) is fixedly mounted on the side of the moving seat (3) away from the compensating threaded rod (2). A tool mounting cap (8) is fixedly mounted on one end of the movable seat (3); a laser rangefinder (9) is fixedly mounted on the side of the movable seat (3) away from the compensating threaded rod (2); two connecting rods (5) are symmetrically fixedly mounted on the side of the movable seat (3) away from the laser rangefinder (9); a movable collar (11) is fixedly mounted on one end of the connecting rod (5) away from the movable seat (3); connecting columns (6) are fixedly mounted on both sides of the bottom of the movable collar (11); and a limited movable slider (12) is fixedly mounted on one end of the connecting column (6) away from the movable collar (11).

2. The precision compensation device for a CNC machine tool according to claim 1, characterized in that: The compensating threaded rod (2) is threadedly connected to the inner side of the threaded sleeve (4).

3. The precision compensation device for a CNC machine tool according to claim 1, characterized in that: The two position-limiting movable sliding blocks (12) are respectively slidably mounted on the inner sides of the two position-limiting movable sliding grooves (17).

4. The CNC machine tool precision compensation device according to claim 1, characterized in that: The movable sleeve ring (11) is sleeved on the outer side of the compensating threaded rod (2).

5. The precision compensation device for a CNC machine tool according to claim 1, characterized in that: The end of the rotating knob (15) away from the connecting rod three (18) is fixedly mounted with a connecting telescopic rod (13), and the end of the connecting telescopic rod (13) away from the rotating knob (15) is fixedly mounted with a motor external cap (14).

6. The CNC machine tool precision compensation device according to claim 1, characterized in that: A rotating sleeve (10) is fixedly mounted on the side of the movable seat (3) away from the second connecting rod (7), and an end of the compensating threaded rod (2) away from the third connecting rod (18) is movably mounted on the inner side of the rotating sleeve (10).

7. The CNC machine tool precision compensation device according to claim 1, characterized in that: A machine tool connecting piece (16) is fixedly mounted on a side of the mounting plate (1) away from the threaded sleeve (4).

Images