Movable cross beam locking device of gantry five-axis machine tool

Abstract

The utility model discloses a movable cross beam locking device of a gantry five-axis machine tool, which comprises a pair of oppositely arranged support frames and a cross beam, the cross beam stretches across the pair of support frames, the two ends of the cross beam are respectively arranged on the support frames through linear guide rails, and the two ends of the cross beam are respectively provided with an adjusting mechanism capable of synchronously operating. The cross beam can be driven by the adjusting mechanism to move on the supporting frame along the linear guide rails; a locking block capable of sliding in the cross beam and a driving mechanism capable of driving the locking block to move are further arranged at the two ends of the cross beam respectively, the front end of the locking block can be attached to the linear guide rail through driving of the driving mechanism at the corresponding end of the locking block, and therefore the cross beam is locked and fixed. According to the gantry five-axis machine tool, the movable cross beam of the gantry five-axis machine tool is locked, the machining error caused by the fact that the cross beam slightly moves due to vibration under the influence of cutting force and impact force in the machining process is overcome, the stability of the machine tool is enhanced, and meanwhile the machining precision is effectively improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to machine tool technical field, more particularly, relate to a kind of movable crossbeam locking device of gantry five-axis machine tool. BACKGROUND

[0002] Gantry five-axis machine tool is a kind of high-precision and high-reliability large machine tool, it adopts gantry structure and five-axis control system, can complete various complex machining operations.

[0003] The common structure form is workbench movable gantry five-axis numerical control machine tool, in this structure, during machining, the five-axis head of machine tool is adjusted to appropriate machining position through crossbeam, workpiece is placed on movable workbench, and workbench is moved by transmission device (such as screw transmission);This design makes workpiece can be moved on workbench, while the spindle head of machine tool can be moved on crossbeam and can swing, thereby the machining of complex shape of part is carried out;But in the machining process, under the influence of cutting force and impact force, crossbeam will be vibrated and slightly moved, and machining error is caused, thereby affecting machining quality, therefore, it is necessary to design a kind of movable crossbeam locking device of gantry five-axis machine tool, to effectively solve the above technical problems. CONTENT OF THE UTILITY MODEL

[0004] In order to solve the problems existing in the prior art, the utility model aims at providing a kind of movable crossbeam locking device of gantry five-axis machine tool, to be locked in the process of machining, improve machining precision.

[0005] In order to achieve the above technical purpose and effect, the utility model realizes by the following technical scheme:

[0006] A kind of movable crossbeam locking device of gantry five-axis machine tool, including a pair of oppositely arranged support frame and a crossbeam, the crossbeam is spanned between a pair of support frame, the both ends of the crossbeam are respectively arranged on the support frame by linear guide rail, and a synchronous operation adjusting mechanism is respectively arranged at the both ends of the crossbeam, the crossbeam can be moved on the support frame along the linear guide rail by the drive of the adjusting mechanism;Locking block that can slide in it and drive mechanism that can drive the locking block to move are respectively arranged on the both ends of the crossbeam, the locking block can realize the front end of the locking block and the linear guide rail by the drive of the drive mechanism of corresponding end, so as to realize the locking of the crossbeam.

[0007] Further, the adjusting mechanism includes a drive motor fixed on the crossbeam, a gear is sleeved on the output shaft of the drive motor, the gear is meshed with a rack, and the rack is arranged in parallel with the linear guide rail.

[0008] Further, the rack is located at the side wall of the linear guide rail, and the rack is integrally formed with the linear guide rail.

[0009] Further, a pair of guide shafts are respectively arranged at the two ends of the cross beam.

[0010] Further, the driving mechanism comprises a cylinder, the cylinder is vertically fixed on the cross beam through a motor support base, and the lower end of the piston rod of the cylinder is provided with a driving block capable of driving the locking block to slide through a connecting plate.

[0011] Further, the opposite surfaces of the locking block and the driving block are obliquely arranged.

[0012] Further, a reset spring is arranged on the guide shaft between the locking block and the cross beam.

[0013] Further, a T-shaped groove is arranged on the oblique surface of the locking block, and a T-shaped block matched with the T-shaped groove is arranged on the oblique surface of the driving block.

[0014] Further, a pair of guide rods are arranged on the connecting plate, and the guide rods are slidably arranged through the motor support base.

[0015] The beneficial effects of the utility model are as follows: the utility model realizes locking of the movable cross beam of the gantry five-axis machine tool, overcomes the influence of cutting force and impact force in the machining process, and the slight movement of the cross beam caused by vibration, and machining errors caused thereby are avoided, the stability of the machine tool is enhanced, and the machining precision is effectively improved.

[0016] The above description is only a summary of the technical scheme of the utility model, in order to more clearly understand the technical means of the utility model, and the content of the specification can be implemented, the following preferred embodiments of the utility model are described in detail in combination with the drawings. The specific implementation of the utility model is described in detail by the following embodiments and drawings. BRIEF DESCRIPTION OF DRAWINGS

[0017] The drawings described herein are used to provide further understanding of the utility model, and constitute a part of the application, the schematic embodiments of the utility model and the description are used to explain the utility model, and do not constitute improper limitation on the utility model. In the drawings:

[0018] Figure 1 It is the overall structure schematic diagram of the utility model device;

[0019] Figure 2 It is the utility model Figure 1 The enlarged view of A in the utility model;

[0020] Figure 3A device partial schematic view is provided for the utility model;

[0021] Figure 4 A driving mechanism and locking block first embodiment schematic view is provided for the utility model;

[0022] Figure 5 A first embodiment locking schematic view is provided for the utility model;

[0023] Figure 6 A driving mechanism and locking block second embodiment schematic view is provided for the utility model;

[0024] Figure 7 A second embodiment locking schematic view is provided for the utility model;

[0025] Figure 8 A use state schematic view is provided for the utility model.

[0026] Marked number explanation: 1, support frame; 2, crossbeam; 3, linear guide rail; 4, adjusting mechanism; 5, locking block; 6, driving mechanism; 7, guide shaft; 41, driving motor; 42, gear; 43, rack; 51, T-shaped groove; 61, air cylinder; 62, motor support seat; 63, connecting plate; 64, driving block; 65, guide rod; 66, reset spring; 641, T-shaped block. Specific implementation

[0027] The utility model will be described in detail below with reference to the drawings and in combination with embodiments.

[0028] It needs to be explained that all directionality indications (such as up, down, left, right, front, back, upper end, lower end, top, bottom...) in the utility model embodiment are only used for explaining the relative position relationship, movement condition and the like between components in a certain specific posture (as shown in the drawings), if the specific posture changes, then the directionality indications also change accordingly.

[0029] Reference is made to Figures 1-3As shown in the figure, a gantry five-axis machine tool's moving beam locking device, including a pair of opposite support frame 1 and a beam 2, the beam 2 across between a pair of the support frame 1, and the two ends of the beam 2 are arranged on the support frame 1 through a pair of linear guide rail 3, and in the two ends of the beam 2 is provided with a synchronous operation adjustment mechanism 4, the beam 2 through the drive of the adjustment mechanism 4 can be moved along the linear guide rail 3 on the support frame 1; The two ends of the beam 2 are also provided with a pair of locking block 5 and drive mechanism 6 which can drive the locking block 5 to move, a pair of the locking block 5 are located between a pair of the linear guide rail 3 of the corresponding end, and with the linear guide rail 3 one to one, and the drive mechanism 6 are located between a pair of the locking block 5 of the corresponding end, locking, the locking block 5 through the drive of the corresponding end of the drive mechanism 6 can realize the front end of the locking block 5 and the corresponding linear guide rail 3 fit, so as to realize the beam 2 locking on the linear guide rail 3, and then prevent the beam 2 from moving slightly due to vibration during processing.

[0030] Further, see Figure 2 As shown in the figure, in this embodiment, the adjustment mechanism 4 includes a drive motor 41 fixed on the beam 2, the output shaft of the drive motor 41 is sleeved with a gear 42, the gear 42 is engaged with a rack 43, the rack 43 is arranged in parallel with the linear guide rail 3; And in this embodiment, the rack 43 is located in the side wall of the linear guide rail 3, and the rack 43 is integrally formed with the linear guide rail 3, of course, the above-mentioned rack 43 setting mode is only one embodiment, not to limit the scope of the application.

[0031] Further, see Figure 3 As shown in the figure, in this embodiment, a pair of guide shaft 7 is respectively arranged in the two ends of the beam 2, the locking block 5 arranged on the two ends of the beam 2 is slidably arranged in the beam 2 through a pair of the guide shaft 7 of the corresponding end.

[0032] Further, see Figures 4-7As shown in the embodiment, the driving mechanism 6 comprises a cylinder 61 fixed on the cross beam 2 vertically downward through a motor support 62, and a driving block 64 is arranged at the lower end of the piston rod of the cylinder 61 through a connecting plate 63; when locked, the cylinder 61 drives the driving block 64 to move up and down through the connecting plate 63, thereby driving the locking block 5 at the corresponding end to slide on the cross beam 2, so as to realize the fitting between the front end of the locking block 5 and the linear guide rail 3, and further realize the locking of the cross beam 2 on the linear guide rail 3; in order to prevent the driving block 64 from deviating during displacement, a pair of guide rods 65 are arranged on the connecting plate 63, and the guide rods 65 can slide through the motor support 62.

[0033] In the embodiment, in order to realize the driving of the driving block 64 on the locking block 5, continuing to refer to Figures 4-7 As shown, the opposite surfaces of the locking block 5 and the driving block 64 are arranged to be inclined, wherein the inclined surfaces should satisfy that, with the downward movement of the driving block 64, the locking block 5 is driven to slide in the direction of the corresponding linear guide rail 3.

[0034] Further, in the embodiment, referring to Figures 4-5 As shown, the guide shaft 7 between the locking block 5 and the cross beam 2 is sleeved with a reset spring 66, and when the driving block 64 moves upward, the locking block 5 can be driven to slide away from the corresponding linear guide rail 3 through the reset spring 66, thereby realizing unlocking; or, referring to Figures 6-7 As shown, a T-shaped groove 51 is arranged on the inclined surface of the locking block 5, and a T-shaped block 641 adapted to the T-shaped groove 51 is arranged on the inclined surface of the driving block 64, and the driving block 64 drives the locking block 5 to move through cooperation of the T-shaped groove 51 and the T-shaped block 641.

[0035] The working principle of the utility model is as follows:

[0036] In use, referring to Figure 8 As shown (the label B in the figure represents a workbench; the label C in the figure represents a main shaft head), first, the workpiece is placed on the workbench, then the adjusting mechanism 4 is started according to the type of the machined workpiece, the cross beam 2 is driven to move to a proper position on the support frame 1 along the linear guide rail 3, the cylinder 61 is started, and the driving block 64 is driven to move downward through the connecting plate 63, thereby driving the locking block 5 to move to the corresponding linear guide rail 3 along the guide shaft 7 until the front end of the locking block 5 is fitted with the corresponding linear guide rail 3, at this time, the cylinder 61 keeps having a downward driving force on the driving block 64; then, the workbench drives the workpiece to move, and the main shaft head moves and swings on the cross beam 2, thereby completing the machining of the workpiece.

[0037] When the position of the cross beam 2 needs to be adjusted due to processing requirements during processing, the piston rod of the air cylinder 61 is retracted and reset, and then the adjustment method is performed, and details are not repeated here.

[0038] The above only describes preferred embodiments of the present application and is not intended to limit the present application. For those skilled in the art, the present application can be variously changed and modified. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A gantry five-axis machine tool's moving beam locking device, comprising a pair of oppositely arranged support frames (1) and a beam (2), the beam (2) spanning between the pair of support frames (1), characterized in that: Two ends of the crossbeam (2) are arranged on the support frame (1) through linear guide rails (3) respectively, and a synchronous operation adjusting mechanism (4) is arranged at each end of the crossbeam (2), the crossbeam (2) can move on the support frame (1) along the linear guide rail (3) through driving of the adjusting mechanism (4); a locking block (5) which can slide in the locking block (5) and a driving mechanism (6) which can drive the locking block (5) to move are further arranged at each end of the crossbeam (2) respectively, the front end of the locking block (5) can be attached to the linear guide rail (3) through driving of the driving mechanism (6) of the corresponding end, so that the crossbeam (2) is locked.

2. The locking device of the dynamic cross beam of the gantry five-axis machine tool according to claim 1, characterized in that: The adjusting mechanism (4) comprises a driving motor (41) fixed on the crossbeam (2), a gear (42) is sleeved on the output shaft of the driving motor (41), the gear (42) is connected with a rack (43) in meshing, and the rack (43) is arranged in parallel with the linear guide rail (3).

3. The locking device of the dynamic beam of the gantry five-axis machine tool according to claim 2, characterized in that: The rack (43) is located on the side wall of the linear guide rail (3), and the rack (43) is integrally formed with the linear guide rail (3).

4. The locking device of the dynamic cross beam of the gantry five-axis machine tool according to claim 1, characterized in that: A pair of guide shafts (7) are respectively arranged in the two ends of the crossbeam (2).

5. The locking device of the dynamic beam of the gantry five-axis machine tool according to claim 4, characterized in that: The driving mechanism (6) comprises a cylinder (61), the cylinder (61) is fixed on the crossbeam (2) vertically downward through a motor support seat (62), the lower end of the piston rod of the cylinder (61) is provided with a driving block (64) which can drive the locking block (5) to slide through a connecting plate (63).

6. The locking device of the dynamic beam of the gantry five-axis machine tool according to claim 5, characterized in that: The opposite surfaces of the locking block (5) and the driving block (64) are arranged in an inclined manner.

7. The locking device of the dynamic beam of the gantry five-axis machine tool according to claim 6, characterized in that: The guide shaft (7) between the locking block (5) and the crossbeam (2) is sleeved with a reset spring (66).

8. The locking device of the dynamic beam of the gantry five-axis machine tool according to claim 6, characterized in that: A T-shaped groove (51) is formed on the inclined surface of the locking block (5), and a T-shaped block (641) which is matched with the T-shaped groove (51) is arranged on the inclined surface of the driving block (64).

9. The locking device of the dynamic beam of the gantry five-axis machine tool according to claim 5, characterized in that: A pair of guide rods (65) are arranged on the connecting plate (63), and the guide rods (65) can slide through the motor support seat (62).

Images