Adjustable rigid beam structure of gantry machining center

Abstract

An adjustable rigid beam structure of a gantry machining center, comprising a plurality of columns, a beam arranged between two columns, and an adjusting assembly arranged between the column and the beam, the adjusting assembly being capable of adjusting the distance between the column and the beam and completing rigid connection; by arranging the adjusting assembly between the beam and the column, the distance between the columns can be adjusted and the beam can be fixed at one time, and rigid connection can be achieved without secondary adjustment.

Description

Technical Field

[0001] This utility model relates to the field of engineering machinery technology, and more specifically to an adjustable rigid beam structure for a gantry machining center. Background Technology

[0002] The gantry machining center consists of two rows of columns connected one-to-one, with three columns in each row, for a total of six columns. A crossbeam is then erected between the columns. The crane can only install the columns in a rough position, not precisely in one go. The technical requirement for the parallelism of the two rows of columns is 0.02mm, and the straightness of the entire length must not exceed 0.03mm. This requires a second fine adjustment, which has been attempted but has not been successful. Furthermore, even if the adjustment is completed, external forces may cause the adjusted column spacing to change again when the crossbeam is erected, requiring readjustment. Utility Model Content

[0003] One advantage of this invention is that it provides an adjustable rigid beam structure for gantry machining centers. By setting an adjustment component between the beam and the columns, the column spacing can be adjusted and the beam fixed in one go, achieving a rigid connection without the need for secondary adjustments.

[0004] To achieve at least one of the above advantages of this utility model, this utility model provides an adjustable rigid beam structure for a gantry machining center, including several columns, a beam between two columns, and an adjustment component between the columns and the beam. The adjustment component can adjust the distance between the columns and the beam and complete the rigid connection.

[0005] According to one embodiment of the present invention, the adjusting component includes a lead screw pre-embedded in the end of the column, the lead screw being perpendicular to the column, the outer end of the lead screw extending to the outside of the column, and an inner nut being engaged with the lead screw.

[0006] According to one embodiment of the present invention, a positioning pin is also pre-embedded inside the column, and the positioning pin is fixedly connected to one end of the screw located inside the column.

[0007] According to one embodiment of the present invention, the two ends of the crossbeam are integrally formed with adjustment heads, and the ends of the adjustment heads are fixedly provided with blind holes. The diameter of the blind holes is slightly larger than the outer diameter of the lead screw. The end of the lead screw located outside the column extends into the blind hole. The inner nut is rotated on the lead screw to move towards the crossbeam until it abuts the end of the crossbeam. Then, the inner nut is rotated to increase the distance between the column and the crossbeam.

[0008] According to one embodiment of the present invention, the adjustment assembly further includes a threaded ring fixedly disposed on the outer surface of the column, wherein the center of the threaded ring and the center of the lead screw are located at the same point.

[0009] According to one embodiment of the present invention, the end of the adjusting head is also integrally formed with an end plate. The diameter of the end plate is larger than the diameter of the adjusting head. An outer nut is sleeved on the outside of the adjusting head. The outer nut has a two-stage structure, including a through hole section with a diameter between the adjusting head and the end plate and a blind hole section with a diameter slightly larger than the diameter of the end plate. An internal thread is provided on the inner side of the blind hole section, and the internal thread engages with the external thread on the outer surface of the threaded ring. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is an exploded view of the structure of this utility model; In the attached diagram: 1. Column, 2. Locating pin, 3. Threaded ring, 4. Inner nut, 5. Outer nut, 6. End plate, 7. Adjusting head, 8. Lead screw, 9. Blind hole, 10. Crossbeam. Detailed Implementation

[0011] To make the objectives, technical solutions, and advantages of this utility model clearer, the following description will be provided in conjunction with the appendix of this utility model. Figure 1 ~Appendix Figure 2 The present invention will be described in more detail below.

[0012] The preferred embodiments described below are merely examples, and other obvious variations will be apparent to those skilled in the art. The basic principles of this invention as defined in the following description can be applied to other implementations, modifications, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of this invention.

[0013] Those skilled in the art should understand that, in the disclosure of this specification, the terms "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as limitations on this utility model.

[0014] It is understood that the term "a" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple, and the term "a" should not be understood as a limitation on the number.

[0015] This utility model provides an adjustable rigid crossbeam 10 structure for a gantry machining center, including several columns 1, with a crossbeam 10 positioned between two columns 1. An adjustment assembly is also provided between the columns 1 and the crossbeam 10, allowing for adjustment of the distance between the columns 1 and the crossbeam 10 and achieving a rigid connection. The adjustment assembly includes a lead screw 8 pre-embedded in the end of each column 1, perpendicular to the column 1, with its outer end extending to the outside of the column 1. An inner nut 4 is engaged with the lead screw 8. A positioning pin 2 is also pre-embedded inside each column 1, and the positioning pin 2 is fixedly connected to one end of the lead screw 8 located inside the column 1. Adjustment heads 7 are integrally formed at both ends of the crossbeam 10, with blind holes 9 fixedly provided at the ends of the adjustment heads 7. The diameter of the blind holes 9 is slightly larger than the outer diameter of the lead screw 8. One end of the lead screw 8 located outside the column 1 extends into the blind hole 9. The inner nut 4 rotates on the lead screw 8 to move it toward the crossbeam 10 until it abuts against the end of the crossbeam 10. Continuing to rotate the inner nut 4 can increase the distance between the column 1 and the crossbeam 10. The adjustment assembly also includes a threaded ring 3 fixedly installed on the outer surface of the column 1. The center of the threaded ring 3 and the lead screw 8 are located at the same point. The end of the adjustment head 7 is also integrally formed with an end plate 6. The diameter of the end plate 6 is larger than the diameter of the adjustment head 7. An outer nut 5 is sleeved on the outside of the adjustment head 7. The outer nut 5 has a two-stage structure, including a through hole section with a diameter between the adjustment head 7 and the end plate 6 and a blind hole 9 section with a diameter slightly larger than the diameter of the end plate 6. The inner surface of the blind hole 9 section is provided with an internal thread, which meshes with the external thread on the outer surface of the threaded ring 3.

[0016] The first embodiment of this utility model is as follows: The gantry machining center has two rows of columns 1, with three columns 1 in each row, corresponding to each other in pairs. A crossbeam 10 is installed between each pair of corresponding columns 1. An adjustment component is also installed between the columns 1 and the crossbeam 10. The adjustment component can adjust the distance between the columns 1 and the crossbeam 10 and complete the rigid connection. The adjustment component, columns 1 and crossbeam 10 are an integrated structure. After one adjustment, the position can be adjusted. At the same time, the crossbeam 10 is also installed without the need for secondary adjustment. The rigid connection is also very stable.

[0017] The adjustment assembly includes a lead screw 8 pre-embedded in the end of the column 1. A positioning pin 2 is also pre-embedded inside the column 1, and the positioning pin 2 is fixedly connected to one end of the lead screw 8 located inside the column 1. The positioning pin 2 is perpendicular to the lead screw 8, improving the connection strength between the lead screw 8 and the column 1. The lead screw 8 and the column 1 are perpendicular to each other, and the outer end of the lead screw 8 extends to the outside of the column 1. An inner nut 4 is engaged with the lead screw 8. Adjustment heads 7 are integrally formed at both ends of the crossbeam 10, and the cross-section of the crossbeam 10 is rectangular. The cross-section of the adjusting head 7 is circular, and a blind hole 9 is fixedly provided at the end of the adjusting head 7. The blind hole 9 and the axis of the adjusting head 7 are on the same straight line. The diameter of the blind hole 9 is slightly larger than the outer diameter of the lead screw 8. The end of the lead screw 8 located outside the column 1 extends into the blind hole 9, so that the lead screw 8 can move inside the blind hole 9. The inner nut 4 rotates on the lead screw 8 to move towards the crossbeam 10 until it touches the end of the crossbeam 10. Then, the inner nut 4 continues to rotate, which can increase the distance between the column 1 and the crossbeam 10.

[0018] At the same time, the maximum outer diameter of the inner nut 4 is smaller than the inner diameter of the threaded ring 3, ensuring that the two do not interfere with each other.

[0019] The above structure enables the expansion of the distance between column 1 and beam 10.

[0020] The following structure enables the reduction of the distance between column 1 and beam 10.

[0021] The adjustment assembly also includes a threaded ring 3 fixedly mounted on the outer facade of the column 1. The center of the threaded ring 3 and the screw 8 are located at the same point. The end of the adjustment head 7 is also integrally formed with an end plate 6. The diameter of the end plate 6 is larger than the diameter of the adjustment head 7. An outer nut 5 is sleeved on the outside of the adjustment head 7. The outer nut 5 has a two-stage structure, including a through hole section with a diameter between the adjustment head 7 and the end plate 6 and a blind hole 9 section with a diameter slightly larger than the diameter of the end plate 6. The external thread can move on the adjustment head 7. An internal thread is provided on the inner side of the blind hole 9 section. The internal thread meshes with the external thread on the outer facade of the threaded ring 3. The outer nut 5 rotates on the threaded ring 3 to move towards the column 1, thereby pulling the distance between the column 1 and the crossbeam 10 closer.

[0022] In use, there are two situations. One is that it is necessary to increase the distance between the crossbeam 10 and the column 1. In this case, first move the outer nut 5 towards the crossbeam 10, and then rotate the inner nut 4 on the screw 8 to move it towards the crossbeam 10 until it touches the end of the crossbeam 10. Continue to rotate the inner nut 4 to increase the distance between the column 1 and the crossbeam 10. After adjusting to the appropriate distance, put the outer nut 5 on the threaded ring 3 and tighten it. At this time, the inner nut 4 is tightly pressed against the end plate 6, and the outer nut 5 is tightly pressed against the other side of the end plate 6 and connected to the threaded ring 3. Through the double force of the inner nut 4 and the outer nut 5, adjustment and rigid connection can be achieved.

[0023] Another method involves narrowing the distance between the crossbeam 10 and the column 1. In this case, first move the outer nut 5 towards the crossbeam 10, then calculate the distance between the crossbeam 10 and the column 1 required to make the column 1 vertical. Then calculate the distance between the end plate 6 facing the column 1 and the column 1, which is equal to the distance between the inner nut 4 facing the crossbeam 10 and the column 1. After calculating the data, rotate the inner nut 4 and adjust it until it is suitable. Then put the outer nut 5 on the threaded ring 3 and tighten it. At this time, the inner nut 4 is tightly pressed against the end plate 6, and the outer nut 5 is tightly pressed against the other side of the end plate 6 and connected to the threaded ring 3. Through the dual force of the inner nut 4 and the outer nut 5, adjustment and rigid connection can be achieved.

[0024] It should be noted that the terms "first, second, and third" used in this utility model are for descriptive purposes only and do not indicate any order. They should not be construed as indicating or implying relative importance, and can be interpreted as names.

[0025] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are merely examples and do not limit the present invention. The advantages of the present invention have been fully and effectively realized. The functional and structural principles of the present invention have been shown and explained in the embodiments. Without departing from the principles, the implementation of the present invention may have any modifications or variations.

Claims

1. An adjustable rigid beam structure for a gantry machining center, characterized in that: The device includes several columns, with a crossbeam between two columns. An adjustment assembly is also provided between the columns and the crossbeam. The adjustment assembly can adjust the distance between the columns and the crossbeam and complete a rigid connection. The adjustment assembly includes a lead screw embedded in the end of the column. The two ends of the crossbeam are integrally formed with adjustment heads. The end of the adjustment head is fixedly provided with a blind hole. The diameter of the blind hole is slightly larger than the outer diameter of the lead screw. The end of the lead screw located outside the column extends into the blind hole. The inner nut rotates on the lead screw to move it toward the crossbeam until it abuts against the end of the crossbeam. After the inner nut is rotated, the distance between the column and the crossbeam can be increased.

2. The adjustable rigid beam structure of the gantry machining center according to claim 1, characterized in that: The lead screw is perpendicular to the column, and the outer end of the lead screw extends to the outside of the column. An inner nut is engaged with the lead screw.

3. The adjustable rigid beam structure of the gantry machining center according to claim 2, characterized in that: The column is also pre-embedded with a positioning pin, which is fixedly connected to one end of the screw located inside the column.

4. The adjustable rigid beam structure of the gantry machining center according to claim 2, characterized in that: The adjustment assembly also includes a threaded ring fixedly installed on the outer facade of the column, the center of which is located at the same point as the center of the lead screw.

5. The adjustable rigid beam structure of the gantry machining center according to claim 4, characterized in that: The end of the adjusting head is also integrally formed with an end plate. The diameter of the end plate is larger than the diameter of the adjusting head. An outer nut is sleeved on the outside of the adjusting head. The outer nut has a two-stage structure, including a through hole section with a diameter between the adjusting head and the end plate and a blind hole section with a diameter slightly larger than the diameter of the end plate. An internal thread is provided on the inner side of the blind hole section, and the internal thread engages with the external thread on the outer surface of the threaded ring.

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