A gantry machining center crossbeam assembly

Abstract

The utility model discloses a kind of gantry machining center crossbeam assemblies, including support beam, receiving plate and hoisting piece, the both ends of support beam are fixedly installed in the column of gantry machining center, hoisting piece is hollowed out inside and is formed into the surrounding ring piece that can be set in the outside of support beam, support beam includes fixed support and the receiving beam installed in the upper portion of fixed support, receiving beam has the placing groove that goes out to upper portion, multiple buffer springs are arranged in placing groove, receiving plate is installed in placing groove and is supported by buffer spring, multiple ball grooves are arranged on the upper surface of receiving plate, one rolling slide ball is provided in each ball groove, rolling slide ball partially exposes ball groove, the side of surrounding ring piece upper plate towards receiving plate is provided with cooperation block, cooperation block lower end has the inner groove that can just contact with rolling slide ball, cooperation block bottom has the setting cavity that goes out downwards, contact spilling piece is provided in setting cavity.

Description

Technical Field

[0001] This utility model relates to the technical field of gantry machining centers, and in particular to a crossbeam assembly for a gantry machining center. Background Technology

[0002] A gantry machining center is a machining center in which the axis of the spindle Z-axis is set perpendicular to the worktable. The overall structure is a large machining center with a portal frame consisting of double columns and a top beam. There is also a crossbeam in the middle of the double columns. It is especially suitable for machining large workpieces and workpieces with complex shapes.

[0003] When machining in a gantry machining center, heavy machining equipment is suspended on the crossbeam and moves frequently during the machining process. The moving device that suspends the machining equipment often generates significant frictional resistance with the crossbeam, which affects the smoothness of the machining process and reduces the machining efficiency. Utility Model Content

[0004] In order to solve the problems mentioned in the background art, the present invention provides a crossbeam assembly for a gantry machining center.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A crossbeam assembly for a gantry machining center includes a support beam, a receiving plate, and a lifting component. The two ends of the support beam are fixedly installed on the columns of the gantry machining center. The lifting component is hollowed out to form a ring that can be fitted onto the outside of the support beam. The support beam includes a fixed bracket and a receiving beam installed on the upper part of the fixed bracket. The receiving beam has a placement groove extending to the upper part. Multiple buffer springs are arranged in the placement groove. The receiving plate is installed in the placement groove and supported by the buffer springs. Multiple ball grooves are arranged on the upper surface of the receiving plate. A rolling ball is provided in each ball groove, and the rolling ball is partially exposed in the ball groove.

[0007] A mating block is provided on the side of the upper plate of the ring component facing the receiving plate. The lower end of the mating block has an inner groove that can just make contact with the rolling ball. The bottom of the mating block has a downward-opening cavity, and a contact sprinkling component is provided in the cavity.

[0008] Preferably, the inner wall of the ring member has a distance of at least one centimeter from the peripheral wall of the support beam, so that the lifting member can move without the inner wall contacting the peripheral wall of the support beam. The embedded grooves on the front and rear sides of the fixed bracket are provided with ejector bars, which can be ejected or pulled back into the embedded groove by a displacement device provided in the embedded groove.

[0009] Preferably, a motor capable of driving the toothed gear to rotate is installed inside the ring component, and a toothed gear row extending to the left and right is provided on the upper surface of the receiving plate. The toothed gear and the toothed gear row cooperate so that when the toothed gear row is driven to rotate, it can drive the entire lifting component to move.

[0010] Preferably, the contact spraying component includes a storage tank, a lower probe, and a discharge pipe. The storage tank is suspended inside the setting cavity by a hydraulic rod installed at the top of the setting cavity. The lower probe is installed at the bottom of the storage tank. The bottom end of the lower probe has a space that can accommodate a return spring and a contact column. Under normal conditions, the return spring pushes the lower part of the contact column out of the lower probe.

[0011] Preferably, the storage tank has at least one drain port at the bottom, the drain pipe is connected to the storage tank through the drain port, the storage tank is equipped with a sealing plate, and the bottom end of the contact column is connected to the sealing plate through the bottom plate of the storage tank via a linkage rod.

[0012] Preferably, the outer surface of the receiving plate has a residual liquid receiving groove around each ball groove, and a collection groove is provided inside the receiving plate that runs through the receiving plate from left to right. Both the ball grooves and the residual liquid receiving groove are connected to the collection groove.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] When the lifting component of this utility model moves along the support beam, only the mating block and each rolling ball experience rolling friction. Furthermore, the contact spraying component can spray lubricant onto the rolling balls when the mating block moves above them. This reduces the frictional resistance experienced by the lifting component 3 during movement, improves the smoothness of the gantry machining center, and increases the machining efficiency. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the crossbeam assembly structure of a gantry machining center according to the present invention;

[0017] Figure 2 This is a schematic cross-sectional view of the receiving plate described in this utility model;

[0018] Figure 3 This is a schematic diagram of the bottom structure of the mating block described in this utility model.

[0019] In the diagram: 1. Support beam; 101. Placement groove; 102. Embedding groove; 11. Fixed bracket; 12. Receiving beam; 13. Top strip; 14. Buffer spring; 2. Receiving plate; 201. Ball groove; 202. Residual liquid receiving groove; 203. Collection tank; 3. Lifting component; 301. Inner groove; 302. Setting cavity; 303. Injection port; 31. Surrounding ring component; 32. Mating block; 33. Toothed gear; 4. Rolling ball; 5. Toothed gear row; 6. Contact spill component; 61. Storage tank; 62. Lower probe column; 63. Discharge pipe; 64. Hydraulic lifting rod; 65. Top spring; 66. Contact column; 67. Sealing plate; 68. Linkage rod. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0021] Example 1

[0022] Reference Figure 1-3 A gantry machining center crossbeam assembly includes a support beam 1, a receiving plate 2, and a lifting component 3. The support beam 1 includes a fixed bracket 11 and a receiving beam 12 installed on the upper part of the fixed bracket 11. The receiving beam 12 has a placement groove 101 extending to the upper part. The receiving plate 2 is disposed in the placement groove 101. The lifting component 3 is sleeved and installed on the outside of the support beam 1 and can move laterally along the support beam 1.

[0023] Both ends of the support beam 1 are fixedly installed on the columns of the gantry machining center. The hoisting component 3 is hollowed out to form a ring 31 that can be fitted onto the outside of the support beam 1. The inner wall of the ring 31 has a gap of at least one centimeter with the peripheral wall of the support beam 1, so that the hoisting component 3 can move without the inner wall contacting the peripheral wall of the support beam 1, thereby greatly reducing the frictional resistance encountered by the hoisting component 3 during movement. The embedded grooves 102 on the front and rear sides of the fixed bracket 11 are provided with ejector bars 13, which can be embedded in the grooves. The displacement device installed inside 102 pushes out or pulls back the embedded groove 102. The ejector bar 13 is kept retracted into the embedded groove 102 when the hoisting component 3 moves. After the hoisting component 3 moves to the designated position that needs to be maintained, the ejector bar 13 is pushed out of the embedded groove 102 and is in close contact with the front and rear inner walls of the ring component 31, thereby preventing the hoisting component 3 from swaying back and forth when it is performing processing operations in the gantry machining center. It is understood that the displacement device used to push out or pull back the ejector bar 13 can be implemented as a device such as a hydraulic telescopic rod that can be used by those skilled in the art.

[0024] Multiple buffer springs 14 are arranged in the placement groove 101. The receiving plate 2 is installed in the placement groove 101 and supported by the buffer springs 14. Multiple ball grooves 201 are arranged on the upper surface of the receiving plate 2. Each ball groove 201 is provided with a rolling ball 4. The rolling ball 4 is embedded in the ball groove 201 and can roll and rotate in the ball groove 201. The rolling ball 4 is partially exposed in the ball groove 201. A mating block 32 is provided on the side of the upper plate of the ring member 31 facing the receiving plate 2. The lower end of the mating block 32 has an inner groove 301 that can just make contact with the rolling ball 4. When the lifting member 3 moves, only the mating block 32 contacts the rolling ball 4, and the frictional resistance experienced by the lifting member 3 when moving is small.

[0025] The encircling member 31 is equipped with a motor that can drive the toothed gear 33 to rotate. The upper surface of the receiving plate 2 is provided with a toothed row 5 extending to the left and right. The toothed gear 33 cooperates with the toothed row 5 so that when the toothed row 5 is driven to rotate, it can drive the entire lifting member 3 to move.

[0026] Example 2

[0027] Reference Figure 1-3 The difference between this embodiment and embodiment 1 is that the bottom of the mating block 32 has a downwardly extending cavity 302, and a contact spraying component 6 is provided in the cavity 302. When the hoisting component 3 moves and the contact spraying component 6 contacts the rolling ball 4, the contact spraying component 6 can automatically spray lubricating fluid onto the rolling ball 4.

[0028] Specifically, the contact spraying component 6 includes a storage tank 61, a lower probe 62, and a discharge pipe 63. The storage tank 61 is suspended inside the setting cavity 302 by a hydraulic rod 64 installed at the top of the setting cavity 302. The hydraulic rod 64 is controlled by a motor that drives the toothed gear 33 to rotate. The lower probe 62 is installed at the bottom of the storage tank 61. The bottom end of the lower probe 62 has a space that can accommodate a return spring 65 and a contact column 66. Under normal conditions, the return spring 65 pushes the contact column 66 downwards out of the lower probe 62. While the motor drives the toothed gear 33 to rotate, the hydraulic rod 64 is controlled to extend to lower the contact spraying component 6, so that the bottom of the contact column 66 protrudes out of the setting cavity 302. At this time, when the contact spraying component 6 moves with the lifting component 3 above each rolling ball 4, the contact column 66 will be pushed up by the rolling ball 4.

[0029] The storage tank 61 has at least one drain port at its bottom. The drain pipe 63 is connected to the storage tank 61 through the drain port. A sealing plate 67 is provided inside the storage tank 61. The bottom end of the contact post 66 is connected to the sealing plate 67 through the bottom plate of the storage tank 61 via a linkage rod 68. When the return spring 65 pushes the contact post 66 down, the linkage rod 68 pulls the sealing plate 67 to tightly cover the drain port. At the same time, a sealing ring is provided on the outer wall of the linkage rod 68 so that the channel through which the bottom plate of the storage tank 61 is penetrated by the linkage rod 68 remains sealed when the linkage rod 68 moves up and down. After the contact post 66 is pushed up, the linkage rod 68 moves the sealing plate 67 up to open the drain port. The lubricant stored in the storage tank 61 will flow down and be sprayed onto the surface of the rolling ball 4 under the guidance of the drain pipe 63. The friction between the rolling ball 4 and the mating block 32 is reduced due to the lubricant, and the movement of the lifting component 3 is smoother.

[0030] After the lifting component 3 stops at the designated position, the hydraulic boom 64 is driven to move upward so that the bottom end of the contact column 66 at the lowest point is still above the rolling ball 4, so that the storage tank 61 remains closed, and avoids the storage tank 61 continuously spraying lubricant onto the rolling ball 4 when the lifting component 3 stops at a certain place and the bottom end of the contact column 66 is just above the rolling ball 4, thus avoiding waste.

[0031] The upper surface of the receiving plate 2 has residual liquid receiving grooves 202 around each ball groove 201. The receiving plate 2 is provided with a collection groove 203 that runs through the receiving plate 2 from left to right. The ball grooves 201 and the residual liquid receiving grooves 202 are connected to the collection groove 203. The lubricating fluid sprayed onto the rolling ball 4 will be received by the ball grooves 201 and the residual liquid receiving grooves 202 and finally collected into the collection groove 203. The column of the gantry machining center has a collection device connected to the collection groove 203. After the collection device collects a certain amount of lubricating fluid, the user can re-inject the collected lubricating fluid into the storage tank 61 connected to the injection port 303 opened by the ring member 31, so as to realize the recycling of lubricating fluid.

[0032] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0033] In this utility model, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," "join," and "fix" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, a direct connection, or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0034] The control method of this utility model is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art. The power supply is also common knowledge in the field. Since this utility model is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail.

[0035] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A crossbeam assembly for a gantry machining center, comprising a support beam (1), a receiving plate (2), and a lifting component (3), wherein both ends of the support beam (1) are fixedly installed on the columns of the gantry machining center, characterized in that: The hoisting component (3) is hollowed out to form a ring (31) that can be fitted onto the outside of the support beam (1). The support beam (1) includes a fixed bracket (11) and a supporting beam (12) installed on the upper part of the fixed bracket (11). The supporting beam (12) has a placement groove (101) extending to the upper part. Multiple buffer springs (14) are arranged in the placement groove (101). The supporting plate (2) is installed in the placement groove (101) and supported by the buffer springs (14). Multiple ball grooves (201) are arranged on the upper surface of the supporting plate (2). A rolling ball (4) is provided in each ball groove (201). The rolling ball (4) is partially exposed in the ball groove (201). The upper plate of the ring member (31) is provided with a mating block (32) on the side facing the receiving plate (2). The lower end of the mating block (32) has an inner groove (301) that can just make contact with the rolling ball (4). The bottom of the mating block (32) has a downward-opening setting cavity (302). The setting cavity (302) is provided with a contact sprinkling member (6).

2. The crossbeam assembly of a gantry machining center according to claim 1, characterized in that: The inner wall of the ring member (31) has a distance of at least one centimeter from the periphery of the support beam (1) so that the hoisting member (3) can move without the inner wall contacting the periphery of the support beam (1). The mounting groove (102) on the front and rear sides of the fixed bracket (11) is provided with a push-out strip (13). The push-out strip (13) can be pushed out or pulled back into the mounting groove (102) by the displacement device provided in the mounting groove (102).

3. The crossbeam assembly of a gantry machining center according to claim 1, characterized in that: The encircling member (31) is equipped with a motor that can drive the toothed gear (33) to rotate. The upper surface of the receiving plate (2) is provided with a toothed rack (5) extending to the left and right. The toothed gear (33) cooperates with the toothed rack (5) so that when the toothed rack (5) is driven to rotate, it can drive the entire lifting member (3) to move.

4. A gantry machining center crossbeam assembly according to claim 1, characterized in that: The contact spraying component (6) includes a storage tank (61), a lower probe (62), and a discharge pipe (63). The storage tank (61) is suspended in the setting cavity (302) by a hydraulic rod (64) installed at the top of the setting cavity (302). The lower probe (62) is installed at the bottom of the storage tank (61). The bottom end of the lower probe (62) has a space that can accommodate a return spring (65) and a contact column (66). Under normal conditions, the return spring (65) pushes the contact column (66) downwards out of the lower probe (62).

5. A gantry machining center crossbeam assembly according to claim 4, characterized in that: The storage tank (61) has at least one drain port at the bottom. The drain pipe (63) is connected to the storage tank (61) through the drain port. A sealing plate (67) is provided inside the storage tank (61). The bottom end of the contact column (66) is connected to the sealing plate (67) through the bottom plate of the storage tank (61) via a linkage rod (68).

6. A gantry machining center crossbeam assembly according to claim 4, characterized in that: The upper surface of the receiving plate (2) has a residual liquid receiving groove (202) around each ball groove (201), and a collection groove (203) is provided inside the receiving plate (2) that runs through the receiving plate (2) from left to right. The ball groove (201) and the residual liquid receiving groove (202) are both connected to the collection groove (203).

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