Calibrating device for machining center

Abstract

The utility model relates to the technical field of machining center calibration, and discloses a machining center calibration device, which comprises a seat body fixed at the bottom of a machining center, the seat body comprises a bottom plate parallel to the bottom of the machining center, and four corners of the bottom plate are respectively provided with supporting legs for supporting the machining center. Each supporting leg is connected with the bottom plate through a lifting adjusting mechanism, and a horizontal calibration mechanism used for conducting horizontal calibration on the machining center is further arranged between every two adjacent supporting legs. The levelness calibration device can automatically calibrate the levelness of the machining center, manual assistance is not needed in the whole process, and the levelness calibration device is high in efficiency, low in labor intensity, safe and reliable.

Description

Technical Field

[0001] The utility model relates to the technical field of machining center calibration, and particularly relates to a machining center calibration device. Background Art

[0002] The machining center is developed from the CNC milling machine. The biggest difference between the machining center and the CNC milling machine is that the machining center has the ability to automatically exchange machining tools. By installing different-purpose tools on the tool magazine, the machining tool on the spindle can be changed through the automatic tool changer during one clamping, so as to realize various machining functions. The CNC machining center is a high-efficiency automatic machine tool composed of mechanical equipment and a numerical control system and is suitable for machining complex parts.

[0003] The machining center has high precision. Generally, it is necessary to level and calibrate the machining center during installation. And after using it for a period of time, according to the different degrees of foundation settlement, it is also necessary to re-level and calibrate the machining center. The commonly used calibration method is to install pads at the bottom of the machining center according to the inclination degree of the machining center to level the body of the machining center. In this case, during installation and debugging, the forklift driver and the installer need to cooperate at the same time. If the cooperation is not good, it may cause the installer's hand to be crushed by the machine tool, and in severe cases, it may even cause the installer to lose an arm, causing great personal injuries to many on-site construction workers. At the same time, when the installer finishes debugging and installs the pads, the assistance of other personnel is also required. The process of manual adjustment not only wastes labor but also wastes time. Content of the Utility Model

[0004] The purpose of the utility model is to provide a machining center calibration device, which can realize the automatic calibration operation of the level of the machining center. The whole process does not require manual assistance, not only has high efficiency, but also has low labor intensity and is safe and reliable.

[0005] The above technical purpose of the utility model is achieved through the following technical solutions:

[0006] A machining center calibration device includes a seat body fixed at the bottom of the machining center. The seat body includes a bottom plate parallel to the bottom of the machining center. Four corners of the bottom plate are respectively provided with supporting feet for supporting the machining center. Each supporting foot is connected to the bottom plate through a lifting adjustment mechanism. A horizontal calibration mechanism for horizontally calibrating the machining center is further arranged between adjacent supporting feet.

[0007] By adopting the above technical solution, the four feet on the base plate of the seat body are used to support the machining center. The horizontal calibration mechanism between adjacent feet realizes the real-time monitoring of the level of the machining center by monitoring the level of the base plate in real time. The lifting and adjusting mechanism adjusts the supporting height of the feet in real time according to the level of the base plate, so that the machining center can always maintain a horizontal state on the ground with different settlement degrees. Therefore, the automatic calibration operation of the level of the machining center is realized. The whole process does not require manual assistance, which is not only efficient, but also has a small labor intensity and is safe and reliable.

[0008] A further setting of the present utility model is that: the feet include a support block for fixedly connecting with the ground and a support rod fixed on the support block, and the support rod is connected with the base plate through a lifting and adjusting mechanism.

[0009] By adopting the above technical solution, the feet are fixedly connected with the ground through the support block, so that the machining center is fixedly installed on the ground, ensuring that the machining center will not move on the ground due to the vibration generated by mechanical processing, greatly improving the stability of the machining center during operation. The lifting and adjusting mechanism is used to adjust the supporting height of the support rod for the base plate. The lifting and adjusting mechanism compensates for the distance of the change in the supporting height of the support rod caused by surface settlement by adjusting the supporting height of the support rod for the base plate, so that whether the ground is horizontal or not, the base plate and the machining center located on the base plate can always maintain a horizontal state, effectively ensuring the reliability of the calibration operation.

[0010] A further setting of the present utility model is that: the lifting and adjusting mechanism includes a lifting and adjusting sleeve rotatably connected to the base plate. The lifting and adjusting sleeve is a cylindrical structure with an open lower end, and the support rod is in threaded cooperation with the inner cavity of the lifting and adjusting sleeve.

[0011] By adopting the above technical solution, when it is necessary to adjust the supporting height of the support rod, since the support rod is in threaded cooperation with the inner cavity of the lifting and adjusting sleeve, when the lifting and adjusting sleeve is driven to rotate, the lifting and adjusting sleeve will rise or fall along the axial direction of the support rod. When the lifting and adjusting sleeve rises or falls along the axial direction of the support rod, the supporting height of the support rod for the base plate will increase or decrease. Therefore, the horizontal calibration operation of the base plate is realized, and the operation process is simple and convenient.

[0012] A further setting of the present utility model is that: the lifting and adjusting sleeve is connected with the base plate through a rotation driving mechanism.

[0013] By adopting the above technical solution, the rotation adjustment driving mechanism is used to automatically drive the lifting and adjusting sleeve to rotate, so as to realize the automatic operation of horizontal calibration. Therefore, the manual labor intensity is effectively reduced.

[0014] A further setting of the present utility model is as follows: The rotation driving mechanism includes a rotation driving motor, a first gear is fixedly provided on the output shaft of the rotation driving motor, the first gear meshes with a second gear, the second gear is fixedly connected to the upper end of a rotating shaft, the rotating shaft passes through the bottom plate and is fixed to the top of the lifting and adjusting sleeve, and the rotating shaft is rotatably connected to the bottom plate.

[0015] By adopting the above technical solution, when it is necessary to drive the lifting and adjusting sleeve to rotate, the rotation driving motor is started, so that the output shaft of the rotation driving motor rotates. When the output shaft of the rotation driving motor rotates, it drives the first gear fixedly connected thereto to rotate. When the first gear rotates, it drives the second gear meshing therewith to rotate. When the second gear rotates, it drives the rotating shaft fixedly connected thereto to rotate relative to the bottom plate. When the rotating shaft rotates, it drives the lifting and adjusting sleeve to rotate.

[0016] A further setting of the present utility model is as follows: The horizontal calibration mechanism includes a horizontally arranged balance rod. The center of the balance rod is rotatably connected to the mounting seat at the bottom of the bottom plate through a rotating pin. Calibration parts for calibrating the bottom surface of the machining center are respectively provided at both ends of the balance rod. The two calibration parts are respectively installed in the mounting holes at both ends of the balance rod, and the axial direction of the mounting holes is perpendicular to the bottom plate.

[0017] By adopting the above technical solution, after the balance rod is connected to the bottom plate, a structure similar to a balance is formed. Under the condition of gravity balance at both ends, no matter whether the bottom plate is tilted or not, the balance rod always remains in a horizontal state. When the bottom plate is in a horizontal state, the distances between the calibration parts at both ends of the balance rod and the bottom plate are equal. When the bottom plate is tilted, the distances between the calibration parts at both ends of the balance rod and the bottom plate will be different. Therefore, by comparing the changes in the distance differences between the two calibration parts and the bottom plate, the levelness of the bottom plate can be detected. According to the levelness of the bottom plate, the adjustment range of the support height of the corresponding support feet can be judged, so as to realize the automatic adjustment operation of the support height of the support feet. The structural principle is simple and the cost is low.

[0018] A further setting of the present utility model is as follows: The calibration part includes laser distance sensors respectively arranged in the two mounting holes.

[0019] By adopting the above technical solution, the laser distance sensors are used to monitor the distances between the bottom plate and both ends of the balance rod in real time. When the bottom plate is horizontal, the two distances are equal. When the bottom plate is tilted, the two distances are not equal.

[0020] A further setting of the present utility model is as follows: The distances between the centers of the two mounting holes and the center of the balance rod are equal, and the weights of the two laser distance sensors are equal.

[0021] By adopting the above technical solution, after the two laser sensors are installed at both ends of the balance rod, the balance rod remains in a force balance state at both ends, so that no matter whether the bottom plate is tilted or not, the balance rod can always remain in a horizontal state.

[0022] A further setting of the present utility model is that both the laser distance sensor and the rotary drive motor in the rotary drive mechanism are electrically connected to the controller.

[0023] By adopting the above technical solution, the laser distance sensor transmits the measured distance information to the controller. The controller judges the levelness of the base plate according to the distance information, and then controls the lifting adjustment mechanism connected to the corresponding support feet to perform lifting adjustment according to the levelness information until the base plate returns to the horizontal state, so that the machining center installed above the base plate returns to the horizontal state, thus realizing the automatic calibration operation of the machining center.

[0024] The beneficial effects of the present utility model are:

[0025] 1. The present utility model supports the machining center through four support feet on the base plate of the seat body. The horizontal calibration mechanism between adjacent support feet realizes the real-time monitoring of the levelness of the machining center by real-time monitoring the levelness of the base plate. The lifting adjustment mechanism adjusts the support height of the support feet in real time according to the levelness of the base plate, so that the machining center can always maintain a horizontal state on the ground with different settlement degrees. Therefore, the automatic calibration operation of the levelness of the machining center is realized. The whole process does not require manual assistance, which is not only highly efficient, but also has low labor intensity and is safe and reliable.

[0026] 2. In the present utility model, the support feet are fixedly connected to the ground through support blocks, so that the machining center is fixedly installed on the ground, ensuring that the machining center will not move on the ground due to the vibration generated by mechanical processing, greatly improving the stability of the machining center during operation. The lifting adjustment mechanism is used to adjust the support height of the support rod for the base plate. The lifting adjustment mechanism compensates for the distance change of the support height of the support rod caused by surface settlement by adjusting the support height of the support rod for the base plate, so that whether the ground is horizontal or not, the base plate and the machining center located on the base plate can always maintain horizontal, effectively ensuring the reliability of the calibration operation.

[0027] 3. In the present utility model, the horizontal calibration mechanism is connected to the base plate through a balance rod to form a structure similar to a balance. Under the condition of gravity balance at both ends, no matter whether the base plate is tilted or not, the balance rod always maintains a horizontal state. When the base plate is in a horizontal state, the distances between the calibration parts at both ends of the balance rod and the base plate are equal. When the base plate is tilted, the distances between the calibration parts at both ends of the balance rod and the base plate will be different. Therefore, by comparing the change of the distance difference between the two calibration parts and the base plate, the detection of the levelness of the base plate can be realized. According to the levelness of the base plate, the adjustment range of the support height of the corresponding support feet can be judged, so as to realize the automatic adjustment operation of the support height of the support feet. The structural principle is simple and the cost is low. Description of the Drawings

[0028] To more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required for use in the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0029] Figure 1 It is a schematic structural diagram of a calibration device for a machining center of the present utility model.

[0030] Figure 2 is Figure 1 a partial enlarged schematic diagram of A in

[0031] In the figure, 1 is a machining center; 2 is a seat body; 3 is a bottom plate; 4 is a support leg; 41 is a support block; 42 is a support rod; 5 is a lifting adjustment mechanism; 51 is a lifting adjustment sleeve; 52 is an inner cavity; 6 is a horizontal calibration mechanism; 61 is a balance rod; 62 is a mounting seat; 63 is a mounting hole; 64 is a calibration part; 641 is a laser distance sensor; 642 is a controller; 65 is a rotating pin; 7 is a rotation driving mechanism; 71 is a rotation driving motor; 72 is a first gear; 73 is a second gear; 74 is a rotating shaft. Specific embodiments

[0032] The following will clearly and completely describe the technical solutions of the present utility model in combination with specific embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, rather than 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 efforts belong to the scope of protection of the present utility model.

[0033] As Figure 1 and Figure 2 shown, a calibration device for a machining center includes a seat body 2 fixed to the bottom of the machining center 1. The seat body 2 includes a bottom plate 3 parallel to the bottom of the machining center 1. Four corners of the bottom plate 3 are respectively provided with support legs 4 for supporting the machining center 1. Each support leg 4 is connected to the bottom plate 3 through a lifting adjustment mechanism 5. A horizontal calibration mechanism 6 for horizontally calibrating the machining center 1 is further provided between adjacent support legs 4.

[0034] Furthermore, the support leg 4 includes a support block 41 for fixedly connecting to the ground and a support rod 42 fixed on the support block 41. The support rod 42 is connected to the bottom plate 3 through a lifting adjustment mechanism 5.

[0035] Furthermore, the lifting adjustment mechanism 5 includes a lifting adjustment sleeve 51 rotatably connected to the bottom plate 3. The lifting adjustment sleeve 51 is a cylindrical structure with an open bottom end. The support rod 42 is in threaded cooperation with the inner cavity 52 of the lifting adjustment sleeve 51.

[0036] Further, the lifting and adjusting sleeve 51 is connected to the bottom plate 3 through a rotation driving mechanism 7.

[0037] Further, the rotation driving mechanism 7 includes a rotation driving motor 71. A first gear 72 is fixedly provided on the output shaft of the rotation driving motor 71. The first gear 72 meshes with a second gear 73. The second gear 73 is fixedly connected to the upper end of a rotating shaft 74. The rotating shaft 74 passes through the bottom plate 3 and is fixed to the top of the lifting and adjusting sleeve 51. The rotating shaft 74 is rotatably connected to the bottom plate 3.

[0038] Further, the horizontal calibration mechanism 6 includes a balance bar 61 arranged horizontally. The center of the balance bar 61 is rotatably connected to a mounting seat 62 at the bottom of the bottom plate 3 through a rotating pin 65. Calibration parts 64 for calibrating the bottom surface of the machining center 1 are respectively provided at both ends of the balance bar 61. The two calibration parts 64 are respectively installed in mounting holes 63 at both ends of the balance bar 61. The axial direction of the mounting holes 63 is perpendicular to the bottom plate 3.

[0039] Further, the calibration part 64 includes laser distance sensors 641 respectively arranged in the two mounting holes 63.

[0040] Further, the distances between the centers of the two mounting holes 63 and the center of the balance bar 61 are equal, and the weights of the two laser distance sensors 641 are equal.

[0041] Further, the laser distance sensors 641 and the rotation driving motor 71 in the rotation driving mechanism 7 are both electrically connected to a controller 642.

[0042] The working principle of the present utility model:

[0043] The present utility model supports the machining center 1 through four feet 4 on the bottom plate 3 of the seat body 2. The feet 4 are fixedly connected to the ground through support blocks 41, so that the machining center 1 is fixedly installed on the ground, ensuring that the machining center 1 will not move on the ground due to the vibration generated by mechanical processing, greatly improving the stability of the machining center 1 during operation. The lifting and adjusting mechanism 5 is used to adjust the support height of the support rod 42 for the bottom plate 3. The lifting and adjusting mechanism 5 compensates for the distance of the change in the support height of the support rod 42 caused by surface settlement by adjusting the support height of the support rod 42 for the bottom plate 3, so that whether the ground is horizontal or not, the bottom plate 3 and the machining center 1 located on the bottom plate 3 can always remain horizontal, effectively ensuring the reliability of the calibration operation.

[0044] When it is necessary to adjust the support height of the support rod 42, start the rotary drive motor 71 to make the output shaft of the rotary drive motor 71 rotate. When the output shaft of the rotary drive motor 71 rotates, it drives the first gear 72 fixedly connected thereto to rotate. When the first gear 72 rotates, it drives the second gear 73 meshed therewith to rotate. When the second gear 73 rotates, it drives the rotating shaft 74 fixedly connected thereto to rotate relative to the bottom plate 3. When the rotating shaft 74 rotates, it drives the lifting adjustment sleeve 51 to rotate. When the lifting adjustment sleeve 51 rotates, the lifting adjustment sleeve 51 will rise or fall along the axial direction of the support rod 42. When the lifting adjustment sleeve 51 rises or falls along the axial direction of the support rod 42, the support height of the support rod 42 for the bottom plate 3 will increase or decrease. Therefore, the horizontal calibration operation of the bottom plate 3 is realized, and the operation process is simple and convenient.

[0045] The horizontal calibration mechanism 6 is connected to the bottom plate 3 through the balance rod 61 to form a structure similar to a balance. Under the condition of gravity balance at both ends, no matter whether the bottom plate 3 is inclined or not, the balance rod 61 always remains in a horizontal state. When the bottom plate 3 is in a horizontal state, the distances between the calibration parts 64 at both ends of the balance rod 61 and the bottom plate 3 are equal. When the bottom plate 3 is inclined, the distances between the calibration parts 64 at both ends of the balance rod 61 and the bottom plate 3 will be different. Therefore, by comparing the distances between the two ends of the balance rod 61 and the bottom plate 3 measured by the laser sensors in the two calibration parts 64, the automatic detection of the levelness of the bottom plate 3 can be realized. According to the levelness of the bottom plate 3, the adjustment range of the support height of the corresponding support feet 4 can be judged, so as to realize the automatic adjustment operation of the support height of the support feet 4. The structural principle is simple and the cost is low.

Claims

1. A machining center calibration device, characterized in that: It includes a base body (2) fixed to the bottom of a machining center (1). The base body (2) includes a bottom plate (3) parallel to the bottom of the machining center (1). Four corners of the bottom plate (3) are respectively provided with support feet (4) for supporting the machining center (1). Each support foot (4) is connected to the bottom plate (3) through a lifting adjustment mechanism (5). A horizontal calibration mechanism (6) for horizontally calibrating the machining center (1) is further provided between adjacent support feet (4).

2. The calibration device for a machining center according to claim 1, characterized in that: The support foot (4) includes a support block (41) for fixedly connecting with the ground and a support rod (42) fixed on the support block (41). The support rod (42) is connected to the bottom plate (3) through a lifting adjustment mechanism (5).

3. The machining center calibration device according to claim 2, characterized in that: The lifting adjustment mechanism (5) includes a lifting adjustment sleeve (51) rotatably connected to the bottom plate (3). The lifting adjustment sleeve (51) is a cylindrical structure with an open bottom end. The support rod (42) is in threaded cooperation with the inner cavity (52) of the lifting adjustment sleeve (51).

4. A machining center calibration device according to claim 3, characterized in that: The lifting adjustment sleeve (51) is connected to the bottom plate (3) through a rotation drive mechanism (7).

5. A machining center calibration device according to claim 4, characterized in that: The rotation drive mechanism (7) includes a rotation drive motor (71). A first gear (72) is fixedly provided on the output shaft of the rotation drive motor (71). The first gear (72) meshes with a second gear (73). The second gear (73) is fixedly connected to the upper end of a rotating shaft (74). The rotating shaft (74) penetrates through the bottom plate (3) and is fixed to the top of the lifting adjustment sleeve (51). The rotating shaft (74) is rotatably connected to the bottom plate (3).

6. The calibration device for a machining center according to claim 5, characterized in that: The horizontal calibration mechanism (6) includes a balance rod (61) arranged horizontally. The center of the balance rod (61) is rotatably connected to a mounting seat (62) at the bottom of the bottom plate (3) through a rotating pin (65). Calibration parts (64) for calibrating the bottom surface of the machining center (1) are respectively provided at both ends of the balance rod (61). The two calibration parts (64) are respectively installed in mounting holes (63) at both ends of the balance rod (61). The axial direction of the mounting holes (63) is perpendicular to the bottom plate (3).

7. A machining center calibration device according to claim 6, characterized in that: The calibration part (64) includes laser distance sensors (641) respectively arranged in the two mounting holes (63).

8. A machining center calibration device according to claim 7, characterized in that: The distances between the centers of the two mounting holes (63) and the center of the balance rod (61) are equal. The weights of the two laser distance sensors (641) are equal.

9. The calibration device for a machining center according to claim 8, wherein: The laser distance sensors (641) and the rotation drive motor (71) in the rotation drive mechanism (7) are both electrically connected to a controller (642).

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