A CNC gantry machining center with convenient height adjustment

Abstract

This utility model relates to the field of gantry machine tool technology and discloses a CNC gantry machining center with convenient height adjustment. It includes a gantry frame consisting of two telescopic columns and a crossbeam. The crossbeam is fixedly connected to the top of the two telescopic columns. A motor is fixedly installed on the outer wall of one telescopic column, and the motor output drives the telescopic column to extend and retract. The two telescopic columns are connected by a transmission rod, which transmits the rotational power of the motor and controls the extension and retraction of the other telescopic column. This utility model divides the telescopic column into two parts by setting a bottom column and end columns. The distance between the bottom column and end columns can be adjusted by setting a threaded column that engages with the bottom column, allowing the telescopic column to extend and retract to adjust the height of the crossbeam. This makes the gantry machining center more convenient to operate when machining workpieces of special heights through convenient height adjustment.

Description

Technical Field

[0001] This utility model relates to the field of gantry machine tool technology, and more specifically to a CNC gantry machining center with convenient height adjustment. Background Technology

[0002] A CNC gantry machining center is an automated machining equipment integrating mechanical, electrical, hydraulic, pneumatic, and microelectronic technologies. It typically consists of a bed, worktable, gantry frame, spindle box, and feed system. In the field of modern machining, CNC gantry machining centers, with their high precision, high stability, and powerful machining capabilities, have become key equipment for processing many large parts. From the manufacturing of complex parts in the aerospace industry to the processing of large molds in the automotive industry, CNC gantry machining centers play an irreplaceable role.

[0003] Traditional CNC gantry machining centers often have limitations in height adjustment functionality. Some machining centers have a fixed height and cannot adapt to machining tasks with different height requirements. This means that when machining workpieces of special height, it is necessary to build an additional platform or perform complex clamping adjustments on the workpiece, which is not only cumbersome to operate, but also makes it difficult to guarantee machining accuracy. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a CNC gantry machining center with convenient height adjustment, so as to solve the problem that the traditional CNC gantry machining center cannot be height adjusted in the background art.

[0005] This utility model provides the following technical solution: a CNC gantry machining center with convenient height adjustment, comprising: a gantry frame, the gantry frame being composed of two telescopic columns and a crossbeam, the crossbeam being fixedly connected to the top of the two telescopic columns, a motor being fixedly installed on the outer wall of one of the telescopic columns, the output of the motor being used to drive the telescopic column to extend and retract, the two telescopic columns being connected by a transmission rod, the transmission rod being used to transmit the rotational power of the motor and control the extension and retraction of the other telescopic column.

[0006] Furthermore, the telescopic column includes a base column and an end column. A rotating rod is rotatably sleeved inside the end column. A rotating seat is fixedly installed at the bottom of the end column. A threaded column is fixedly connected to the bottom end of the rotating seat. The base column is threaded onto the side wall of the threaded column. The rotating rod is connected to the rotating seat via a bevel gear meshing assembly. A motor is fixedly installed on the outer wall of the end column. Its motor output end passes through the end column and is connected to one end of the rotating rod. The other end of the rotating rod passes through the outside of the end column and is connected to the end flange of the transmission rod. The rotating seat is used to support the end column and transmit rotational force to the threaded column.

[0007] Furthermore, the bottom of the end post and the top of the bottom post are fixedly connected by a corrugated telescopic sleeve.

[0008] Furthermore, the rotating seat includes a fixed seat, the fixed seat has a rotating hole in the middle, a knob is rotatably sleeved in the rotating hole, a support ring seat is provided at the bottom of the fixed seat, the support ring seat is fixedly connected to the side wall of the threaded column, the support ring seat is used to support the fixed seat, the bottom end of the knob is fixedly installed to the top end of the threaded column, the rotating rod is connected to the knob through a bevel gear meshing group, and the fixed seat is fixedly installed at the bottom of the end column.

[0009] Furthermore, the top of the support ring seat is provided with several hemispherical recesses, and each of the several hemispherical recesses is rotatably fitted with a ball, and the balls are in contact with the bottom of the fixed seat.

[0010] Furthermore, the bottom column includes a main column, two oil suction pipes, and an oil storage cylinder. An inner cylinder is fixedly connected to the inner wall of the main column, and a nut is fixedly connected to the inner wall of the inner cylinder. The nut is threaded onto the side wall of the threaded column, and there is a gap between the side wall of the threaded column and the inner wall of the inner cylinder. An oil suction pipe and an oil discharge pipe are connected inside the inner cylinder. The other ends of the oil suction pipe and the oil discharge pipe extend to the outside of the main column and communicate with the inside of the oil storage cylinder. A one-way valve a is provided at the connection between the oil suction pipe and the oil storage cylinder, and a one-way valve b is provided at the connection between the oil discharge pipe and the oil storage cylinder.

[0011] Furthermore, the oil storage tank is equipped with an inner tube, one end of which is connected to the one-way valve a, and the other end extends to the bottom of the oil storage tank.

[0012] The technical effects and advantages of this utility model are as follows:

[0013] This utility model divides the telescopic column into two parts by setting a base column and an end column. By setting a threaded column that engages with the base column, the distance between the base column and the end column can be adjusted, so that the telescopic column has a telescopic effect to adjust the height of the crossbeam. This allows the gantry machining center to easily adjust the height when processing workpieces of special heights, making the operation more convenient. In addition, under the transmission action of the rotating rod, rotating seat, bevel gear meshing group, and transmission rod, the two telescopic columns can extend and retract synchronously, thereby avoiding the tilting of the crossbeam during the height adjustment process. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This utility model Figure 1 A schematic diagram of the telescopic column structure in the middle;

[0016] Figure 3 This utility model Figure 2Enlarged structural diagram at point A;

[0017] Figure 4 This utility model Figure 3 A schematic diagram of the rotating seat structure in the diagram;

[0018] Figure 5 This utility model Figure 2 A schematic diagram of the bottom column structure;

[0019] Figure 6 This utility model Figure 5 A schematic diagram of the cross-sectional structure of the oil storage tank.

[0020] The attached diagram is labeled as follows: 1. Telescopic column; 2. Crossbeam; 3. Transmission rod; 4. Motor; 11. Base column; 12. End column; 13. Rotating rod; 14. Rotating seat; 15. Bevel gear meshing assembly; 16. Threaded column; 17. Corrugated telescopic sleeve; 141. Fixed seat; 142. Knob; 143. Support ring seat; 144. Ball bearing; 111. Main column; 112. Inner cylinder; 113. Nut; 114. Oil suction pipe; 115. Oil discharge pipe; 116. Oil reservoir; 117. Inner tube. Detailed Implementation

[0021] The specific embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0022] Reference Figure 1 and Figure 2 This utility model provides a CNC gantry machining center with convenient height adjustment, including: a gantry frame, which is composed of two telescopic columns 1 and a crossbeam 2. The crossbeam 2 is fixedly connected to the top of the two telescopic columns 1. A motor 4 is fixedly installed on the outer wall of one telescopic column 1. The output of the motor 4 is used to drive the telescopic column 1 to extend and retract. The two telescopic columns 1 are connected by a transmission rod 3. The transmission rod 3 is used to transmit the rotational power of the motor 4 and control the extension and retraction of the other telescopic column 1.

[0023] In use, a telescopic column 1 is driven by motor 4 to extend and retract. Under the rotation of transmission rod 3, two telescopic columns 1 extend and retract synchronously, thereby adjusting the height of the crossbeam 2. This allows for convenient height adjustment of the gantry machining center. By connecting motor 4 to the PLC control system, the height adjustment can be precisely controlled by controlling the number of rotations of transmission rod 3, further enhancing convenience.

[0024] Reference Figure 2 , 3The telescopic column 1 includes a base column 11 and an end column 12. A rotating rod 13 is rotatably sleeved inside the end column 12. A rotating seat 14 is fixedly installed at the bottom of the end column 12. A threaded column 16 is fixedly connected to the bottom end of the rotating seat 14. The base column 11 is threaded onto the side wall of the threaded column 16. The rotating rod 13 is connected to the rotating seat 14 via a bevel gear meshing group 15. A motor 4 is fixedly installed on the outer wall of the end column 12. The output end of the motor 4 passes through the end column 12 and is connected to one end of the rotating rod 13. The other end of the rotating rod 13 passes through the outside of the end column 12 and is connected to the end flange of the transmission rod 3. The rotating seat 14 is used to support the end column 12 and transmit rotational force to the threaded column 16.

[0025] In use, the motor 4 outputs power to drive the rotating rod 13 to rotate. Under the transmission action of the bevel gear meshing group 15 and the rotating seat 14, the threaded column 16 rotates. Through the threaded engagement between the threaded column 16 and the bottom column 11, the threaded column 16 moves up and down within the bottom column 11, adjusting the distance between the bottom column 11 and the end column 12, thereby controlling the telescopic column 1's extension and retraction effect. Under the transmission action of the transmission rod 3, the rotating rod 13 of another telescopic column 1 can be rotated, so that the two telescopic columns 1 can operate and extend and retract synchronously. The rotating seat 14 can prevent the threaded column 16 from changing its position within the end column 12, thus avoiding any impact on the bevel gear meshing group 15.

[0026] Reference Figure 3 The bottom of the end post 12 and the top of the bottom post 11 are fixedly connected by a corrugated expansion sleeve 17.

[0027] By setting the corrugated expansion sleeve 17, the threaded post 16 between the bottom post 11 and the end post 12 can be shielded, thereby improving the aesthetics and preventing external dust or impurities from affecting the threaded post 16.

[0028] Reference Figure 4 The rotating seat 14 includes a fixed seat 141 with a rotating hole in the middle. A knob 142 is rotatably fitted inside the rotating hole. A support ring seat 143 is provided at the bottom of the fixed seat 141. The support ring seat 143 is fixedly connected to the side wall of the threaded column 16 and is used to support the fixed seat 141. The bottom end of the knob 142 is fixedly installed to the top end of the threaded column 16. The rotating rod 13 is connected to the knob 142 through the bevel gear meshing group 15. The fixed seat 141 is fixedly installed at the bottom of the end column 12.

[0029] The bevel gear meshing assembly 15 is configured to transmit rotational force, which drives the knob 142 to rotate. The knob 142 then drives the threaded column 16 to rotate. The support ring seat 143 supports the fixed seat 141, thus providing a load-bearing effect for the end column 12 and preventing the bevel gear meshing assembly 15 from being damaged due to load.

[0030] Reference Figure 4The top of the support ring seat 143 has several hemispherical recesses, and each of the hemispherical recesses is fitted with a ball bearing 144, which contacts the bottom of the fixed seat 141.

[0031] Since the support ring seat 143 rotates with the threaded column 16 and the support ring seat 143 has a large frictional force on the fixed seat 141, several balls 144 are provided to reduce the frictional force when the support ring seat 143 rotates.

[0032] Reference Figure 5 The base column 11 includes a main column 111, two oil suction pipes 114, and an oil storage cylinder 116. An inner cylinder 112 is fixedly connected to the inner wall of the main column 111. A nut 113 is fixedly connected to the inner wall of the inner cylinder 112. The nut 113 is threaded onto the side wall of the threaded column 16. There is a gap between the side wall of the threaded column 16 and the inner wall of the inner cylinder 112. The inner cylinder 112 is connected to the oil suction pipe 114 and the oil discharge pipe 115. The other ends of the oil suction pipe 114 and the oil discharge pipe 115 extend to the outside of the main column 111 and communicate with the inside of the oil storage cylinder 116. A one-way valve a is provided at the connection between the oil suction pipe 114 and the oil storage cylinder 116, and a one-way valve b is provided at the connection between the oil discharge pipe 115 and the oil storage cylinder 116.

[0033] Lubricating oil can be stored in the oil reservoir 116. When the threaded column 16 moves, it moves inside the inner cylinder 112, thereby changing the size of the internal space of the inner cylinder 112. When the threaded column 16 moves upward, the internal space of the inner cylinder 112 increases, and the air pressure is lower than the external air pressure. Thus, the lubricating oil inside the oil reservoir 116 can be lubricated through the oil suction pipe 114. Similarly, when the threaded column 16 moves downward, the lubricating oil inside the inner cylinder 112 is discharged into the oil reservoir 116 through the oil discharge pipe 115. Thus, through the structural design of the bottom column 11, the threaded column 16 can achieve an automatic lubrication effect.

[0034] Reference Figure 6 The oil reservoir 116 is equipped with an inner tube 117. One end of the inner tube 117 is connected to the one-way valve a, and the other end extends to the bottom of the oil reservoir 116.

[0035] By setting the inner tube 117, the oil suction pipe 114 can be prevented from failing to draw lubricating oil when the lubricating oil inside the oil reservoir 116 is low.

[0036] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. This utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A portable height-adjustable numerical control gantry machining center, comprising: The gantry frame is characterized in that: the gantry frame is composed of two telescopic columns (1) and a crossbeam (2), the crossbeam (2) is fixedly connected to the top of the two telescopic columns (1), a motor (4) is fixedly installed on the outer wall of one of the telescopic columns (1), the output of the motor (4) is used to drive the telescopic column (1) to operate and extend, the two telescopic columns (1) are connected by a transmission rod (3), the transmission rod (3) is used to transmit the rotational power of the motor (4) and control the telescopic column (1) to operate and extend.

2. The CNC gantry machining center of claim 1, wherein: The telescopic column (1) includes a base column (11) and an end column (12). A rotating rod (13) is rotatably sleeved inside the end column (12). A rotating seat (14) is fixedly installed at the bottom of the end column (12). A threaded column (16) is fixedly connected to the bottom end of the rotating seat (14). The base column (11) is threadedly sleeved on the side wall of the threaded column (16). The rotating rod (13) is connected to the rotating seat (14) through a bevel gear meshing group (15). The motor (4) is fixedly installed on the outer wall of the end column (12). The output end of the motor (4) passes through the end column (12) and is connected to one end of the rotating rod (13). The other end of the rotating rod (13) passes through the outside of the end column (12) and is connected to the end flange of the transmission rod (3). The rotating seat (14) is used to bear the weight of the end column (12) and transmit rotational force to the threaded column (16).

3. The easily height-adjustable CNC gantry machining center according to claim 2, characterized in that: The bottom of the end post (12) and the top of the bottom post (11) are fixedly connected by a corrugated telescopic sleeve (17).

4. The easily height-adjustable CNC gantry machining center according to claim 2, characterized in that: The rotating seat (14) includes a fixed seat (141), a rotating hole is provided in the middle of the fixed seat (141), and a knob (142) is rotatably sleeved in the rotating hole. A support ring seat (143) is provided at the bottom of the fixed seat (141). The support ring seat (143) is fixedly connected to the side wall of the threaded column (16) and is used to support the fixed seat (141). The bottom end of the knob (142) is fixedly installed to the top end of the threaded column (16). The rotating rod (13) is connected to the knob (142) through a bevel gear meshing group (15). The fixed seat (141) is fixedly installed at the bottom of the end column (12).

5. The easily height-adjustable CNC gantry machining center according to claim 4, characterized in that: The top of the support ring seat (143) is provided with several hemispherical recesses, and each of the several hemispherical recesses is rotatably fitted with a ball (144), and the ball (144) contacts the bottom of the fixed seat (141).

6. The CNC gantry machining center of claim 2, wherein: The bottom column (11) includes a main column (111), two oil suction pipes (114), and an oil storage cylinder (116). An inner cylinder (112) is fixedly connected to the inner wall of the main column (111), and a nut (113) is fixedly connected to the inner wall of the inner cylinder (112). The nut (113) is threaded onto the side wall of the threaded column (16). There is a gap between the side wall of the threaded column (16) and the inner wall of the inner cylinder (112). The inner cylinder (112) is connected to the oil suction pipe (114) and the oil discharge pipe (115). The other end of the oil suction pipe (114) and the oil discharge pipe (115) both penetrate to the outside of the main column (111) and communicate with the inside of the oil storage cylinder (116). A one-way valve a is provided at the connection between the oil suction pipe (114) and the oil storage cylinder (116), and a one-way valve b is provided at the connection between the oil discharge pipe (115) and the oil storage cylinder (116).

7. The easily height-adjustable CNC gantry machining center according to claim 6, characterized in that: The oil reservoir (116) is equipped with an inner tube (117), one end of which is connected to the one-way valve a, and the other end extends to the bottom of the oil reservoir (116).

Images