CN107009156A - A kind of gantry structure crossbeam of achievable Slope angle adjustment - Google Patents

Abstract

A gantry structure crossbeam capable of adjusting inclination belongs to the field of machine tool and instrument equipment unit components. The upper and lower wedge blocks in an active adjustment mechanism slide through the cooperation of a rectangular chute and a rectangular boss, and pass through the wedge block by rotating. The position of the upper wedge is adjusted by tightening the bolts of the cover; in conjunction with the self-adaptive adjustment mechanism, the elliptical adjustment column is fixedly connected with the beam through bolts, and can rotate freely according to the adjustment range of the active adjustment mechanism. Its active adjustment mechanism and self-adaptive adjustment mechanism cooperate to form an inclination adjustment mechanism, which is convenient to adjust and low in cost; it can realize stepless adjustment by using two matching wedge blocks and jacking bolts, ensuring high linear precision of the beam structure; self-adaptive adjustment The mechanism adopts circular arc coordination, and cooperates with the active adjustment mechanism to freely rotate during the adjustment process to achieve high straightness adjustment. The locking device locks the tilted state formed after adjustment, so that the gantry beam mechanism has better precision retention.

Description

A gantry structure beam capable of adjusting inclination

technical field

The invention relates to machine tools and instrument equipment unit parts, in particular to a gantry structure beam capable of adjusting inclination.

Background technique

With the rapid development of precision and ultra-precision manufacturing technology, high-precision machining technology puts forward higher and higher requirements for the accuracy of machine tool unit parts. On processing equipment such as high-precision planar parts processing and surface shape trimming, the linear motion accuracy of the machine tool directly affects the final processing effect. Therefore, improving the linear motion accuracy of the machine tool is very important for precision machining technology.

At present, the straightness of the linear motion mechanism of the machine tool, especially the straightness of the gantry-type beam mechanism, is mainly guaranteed by the high-precision processing of the components of the assembly components, but it may occur due to the processing errors of the components, assembly methods, assembly experience and other factors during the assembly process of the equipment. The final motion accuracy is lost; or in the case of a large error, relying on thin shims to adjust and fill the tilt error is not only time-consuming and laborious, but also has poor stability, making it difficult to achieve stable high-straightness motion.

Contents of the invention

Aiming at the problems existing in the prior art, the present invention provides a gantry structure crossbeam capable of adjusting the inclination, which has high linear precision, good stability, good precision retention and convenient adjustment.

The present invention is realized through the following technical solutions:

A gantry structure beam capable of adjusting inclination, including a bed, a left column, a right column, a beam, an active adjustment mechanism, an adaptive adjustment mechanism and a locking device;

The beam is connected to the bed through the left column and the right column to form a gantry structure;

The active adjustment mechanism includes a tightening bolt, an upper wedge and a lower wedge arranged in a rectangular groove at the top of the left column; the lower wedge is fixedly connected to the left column, the upper end of the upper wedge contacts the beam, and the lower end contacts the upper The wedge block slides and fits along the length of the beam; the two ends of the rectangular groove on the top of the left column are respectively fixed with a wedge block cover, and the tightening bolt rotates through the wedge block cover and contacts with the two ends of the upper wedge block, which is used to adjust the upper wedge block s position;

The self-adaptive adjustment mechanism includes an elliptical adjustment column arranged in an arc groove at the top of the right column; one side of the ellipse adjustment column is a plane and is fixed to the crossbeam, and the other side is a cylindrical surface arranged in a concave shape with the arc at the top of the right column. The slots rotate and fit in the length direction of the beam;

The position of the upper wedge is adjusted by turning the tightening bolt that passes through the cover of the wedge, and then the inclination angle of the beam is adjusted from one end. The tightening device locks the active adjustment mechanism and the self-adaptive adjustment mechanism, and the crossbeam is fixedly connected with the left column and the right column respectively.

Preferably, the left column and the right column are composed of upper and lower columns, the left lower column and the right lower column are used for supporting connection, and the left upper column is used for supporting connection and providing a mounting base for the active adjustment mechanism through the provided rectangular groove. seat; the upper right column is used to support the connection and provide a mounting base for the self-adaptive adjustment mechanism through the set arc groove.

Preferably, the contact slopes of the upper wedge block and the lower wedge block are respectively provided with a sliding rectangular groove and a rectangular boss, so that the wedge block slides linearly along the length direction of the beam.

Preferably, the arc groove includes two sub-arc protrusions arranged at intervals, and the cylindrical surface of the ellipse adjustment column contacts and rotates with the two sub-arc protrusions.

Preferably, the locking device includes a left fixed block of the crossbeam and a right fixed block of the crossbeam; the left and right ends of the crossbeam are fixedly connected to the left upright and the right upright by the left and right fixed blocks of the crossbeam respectively.

Preferably, the locking device includes a crossbeam locking block and a locking bolt; the crossbeam locking block is used to securely connect the end of the crossbeam with the wedge-shaped block cover; the two sides of the rectangular groove on the top of the left column are provided with waist circles Hole, the angle of inclination of the round hole is the same as that of the inclined plane of the wedge block, and the locking bolt passes through the round hole to fix and lock the upper wedge block and the left column.

Preferably, the locking device includes rotating locking shafts respectively arranged at both ends of the arc groove of the right column; the rotating locking shaft includes an end plate and a stepped shaft section arranged coaxially, and the end plate is fixed on the arc of the right column. At the end of the groove, the stepped shaft section is fixed in cooperation with the threaded hole at the end of the ellipse adjustment column.

Compared with the prior art, the present invention has the following beneficial technical effects:

The present invention is a gantry structure crossbeam capable of adjusting the inclination, which is achieved through the cooperative sliding between the upper and lower wedge-shaped blocks in the active adjustment mechanism using the rectangular chute and the rectangular boss, and by rotating the jacking bolts that pass through the wedge-shaped block cover. Adjust the position of the upper wedge, and then adjust the inclination angle of the beam; cooperate with the self-adaptive adjustment mechanism in which the elliptical adjustment column is fixedly connected with the beam through bolts. The adjustment range can be rotated freely. Therefore, the position of the beam can be fixed and locked after the horizontal adjustment work is completed. The horizontal adjustment of the beam is finally realized by two adjustment mechanisms, and the locking device is used to ensure that the beam is always in a horizontal state during the working process of the device. Its active adjustment mechanism and self-adaptive adjustment mechanism cooperate to form an inclination adjustment mechanism, which is easy to adjust and low in cost; it can realize stepless adjustment by using two matching wedge blocks and jacking bolts, ensuring high linear accuracy of the beam structure; self-adaptive adjustment The mechanism adopts arc coordination, and the active adjustment mechanism can rotate freely during the adjustment process to achieve high straightness adjustment. The locking device locks the tilted state formed after adjustment, so that the gantry beam mechanism has better accuracy retention.

Description of drawings

Figure 1 is an isometric view of the beam in the example of the present invention.

Fig. 2 is a cross-sectional view of the left end of the beam in the example of the present invention.

Fig. 3 is a cross-sectional view of the right end of the beam in the example of the present invention.

Fig. 4 is an exploded view of the active adjustment mechanism of the present invention.

Fig. 5 is an exploded view of the adaptive adjustment mechanism of the present invention

In the figure: 1 is the bed, 2 is the left lower column, 3 is the left upper column, 4 is the wedge block cover, 5 is the jacking bolt, 6 is the beam locking block, 7 is the left fixing block of the beam, 8 is the beam, 9 10 is the rotation locking shaft, 11 is the upper right column, 12 is the lower right column, 13 is the lower wedge, 14 is the upper wedge, 15 is the ellipse adjustment column, 16 is the waist hole, 17 is the Lock the bolts.

detailed description

The present invention will be further described in detail below in conjunction with specific embodiments, which are explanations of the present invention rather than limitations.

The present invention is a gantry structure crossbeam capable of adjusting inclination, comprising a bed 1, a left column, a right column, a beam 8, an active adjustment mechanism, an adaptive adjustment mechanism and a locking device; the active adjustment mechanism includes two matching wedge-shaped block, wedge-shaped block cover 4, jacking bolt 5 and locking bolt 17; The bed 1 and the beam 8 are connected by columns on the left and right sides. In addition to connecting and supporting the left and right columns, they are also used as installation bases for the tilt adjustment mechanism.

The active adjustment mechanism includes two matching wedges, a wedge cover 4, a jacking bolt 5 and a locking bolt 17, the lower wedge 13 is connected to the left upper column 3, and the upper wedge 14 is connected to the beam 8 Contact, adjust the position of the upper wedge block 14 by turning the tightening bolt 5 passing through the wedge block cover 4, and then adjust the inclination angle of the crossbeam 8.

The self-adaptive adjustment mechanism includes an ellipse adjustment column 15 and a rotating locking shaft 10, etc. The ellipse adjustment column 15 is fixedly connected with the beam 8 through bolts, and the ellipse adjustment column 15 fits with the arc groove of the installation base.

The locking device of the active adjustment mechanism uses locking bolts 17 to connect the upper wedge block with the upper left column 3, and then uses the cross beam locking block 6 at the end of the cross beam 8 to fix the cross beam 8 with the wedge block cover 4.

The locking device of the self-adaptive adjustment mechanism uses the end of the rotating locking shaft 10 to connect with the ellipse adjusting column 15, and then the rotating locking shaft 10 is fixedly connected to the upper right column 11.

The above-mentioned two adjustment mechanisms cooperate with each other to finally realize the horizontal adjustment of the beam, and the locking device is used to ensure that the beam is always in a horizontal state during the working process of the device.

Wherein, the active adjustment mechanism, the self-adaptive adjustment mechanism and the locking device form a tilt adjustment mechanism.

The uprights are composed of two upper and lower uprights, the lower upright plays the role of support and connection, and the upper upright plays the role of support and connection and provides the installation base for the adjustment mechanism.

The upper and lower wedge-shaped blocks of the active adjustment mechanism utilize the cooperative sliding of the rectangular chute and the rectangular boss to ensure that the wedge-shaped blocks slide along a straight line.

The jacking bolts include outer jacking bolts and inner jacking bolts. According to the inclination angle of the beam, if the left end of the beam is low, screw out the inner jacking bolts and screw in the outer jacking bolts; The inner jacking bolts are screwed in, and the outer jacking bolts are screwed out.

The adaptive adjustment mechanism is composed of an elliptical adjustment column 15 and an arc groove. The ellipse adjustment column 15 is connected to the bottom surface of the beam 8. According to the adjustment range of the active adjustment mechanism, the ellipse adjustment column 15 can freely rotate in the base of the arc groove . Among them, the arc groove is composed of two sub-arcs, which can reduce the surface area of high-precision machining while meeting the requirements of use.

The locking device of the active adjustment mechanism is to use the locking bolt 17 to connect the upper wedge block with the upper column. The inclination of the waist hole 16 where the locking bolt 17 is installed is consistent with the inclination of the wedge block hypotenuse, and then the beam is fixed with the beam fixing block. Fixed connection with the upper column.

The locking device of the self-adaptive adjustment mechanism is to use the thin end of the rotating locking shaft 10 to thread the ellipse adjusting column 15, and the other end of the rotating locking shaft 10 is fixedly connected to the upper column, and then the upper column and the beam are connected by a beam fixing block. 8 fixed connections.

Specifically, as shown in Figures 1 and 2, the present invention includes a bed 1, a lower left column 2, an upper left column 3, a wedge block cover 4, a jacking bolt 5, a beam locking block 6, a left beam fixing block 7, Crossbeam 8, crossbeam right fixed block 9, rotation locking shaft 10, right upper column 11, right lower column 12, lower wedge-shaped block 13, upper wedge-shaped block 14, ellipse adjustment column 15.

As shown in Fig. 1, Fig. 2, Fig. 3, described crossbeam adopts gantry structure as a whole, described left lower column 2 and right lower column 12 are connected with bed 1, and lower column mainly plays the role of connecting support; The upper left column 3 and the lower left column 2 are fixed together by bolts, the upper right column 11 and the lower right column 12 are fixed together by bolts, and the upper column is also used as the installation base of the tilt adjustment mechanism in addition to the connection support function; The left end of the crossbeam 8 is in contact with the upper wedge block 14, and the right end of the crossbeam 8 is fixedly connected with the upper surface of the ellipse adjustment column 15 with bolts. During the installation process, after the horizontal adjustment of the inclination adjustment mechanism, it is fixed and locked. The left and right ends of the beam 8 are fixedly connected to the upper left column 3 and the upper right column 11 by the left fixed block 7 of the beam and the right fixed block 9 of the beam respectively, so as to realize sliding. The plate runs stably with high straightness on the gantry beam.

As shown in Figure 1, Figure 2, Figure 3, and Figure 4, the left end of the beam tilt adjustment device is the active adjustment mechanism, which mainly includes the left upper column 3, the upper wedge block 14, the lower wedge block 13, and the wedge block cover 4 (comprising the outer wedge block cover and the inner wedge block cover), jacking bolts 5 (comprising outer jacking bolts and inner jacking bolts) and the like. The upper left column 3 is fixedly connected with the lower left column 2; the lower wedge block 13 is fixedly connected with the upper left column 3; The rectangular chute on the slope of 14 cooperates to ensure that the wedge block only slides in the left and right directions during the relative movement process, ensuring the stability of the beam structure; the upper wedge block 14 is in contact with the lower side of the left end of the beam 8; the wedge block assembly is placed In the groove of the upper left column 3, wedge-shaped block covers 4 are fixed at the left and right ends of the groove, and the top tightening bolts 5 pass through the threaded holes on the top of the wedge-shaped block cover 4, and the ends of the bolts are in contact with the upper wedge-shaped block 14 . The active adjustment mechanism mainly adjusts the position of the upper wedge block 14 by adjusting the tightening bolt 5 , thereby adjusting the inclination angle of the beam 8 . According to the inclination angle of the crossbeam 8, if the left end of the crossbeam 8 is low, unscrew the inner jacking bolts and screw in the outer jacking bolts; unscrew. The fine adjustment of the inclination angle is realized by controlling the rotation angle of the jacking bolt 5 . After the structure is adjusted and balanced, the upper wedge block 14 and the upper left column 3 are fixed and locked together by the locking bolt 17, and the angle of inclination of the round hole 16 where the locking bolt 17 is installed on the upper left column 3 is the same as the inclination angle of the wedge block slope.

As shown in Fig. 1, Fig. 2, Fig. 3 and Fig. 5, the right end of the beam inclination adjustment device is the self-adaptive adjustment mechanism, which mainly includes the upper right column 11, the rotating locking shaft 10, the ellipse adjustment column 15 and the like. The upper right column 11 is fixedly connected with the lower right column 12; the cylindrical side of the ellipse adjustment column 15 is in contact with the cylindrical groove of the upper right column 11. For the convenience of assembly and reducing the processing workload, the upper right column in contact with it The cylindrical groove of 11 is composed of two sections of arc grooves at both ends; the upper surface of the elliptical adjustment column 15 is fixedly connected with the lower surface of the beam 8; the self-adaptive adjustment mechanism mainly cooperates with the active adjustment mechanism to realize the adjustment of the inclination angle, and the adjustment process According to the amount of rotation adjustment of the tightening bolt 5 at the left end, the ellipse adjustment column 15 at the right end rotates freely in the arc groove; after the structure is adjusted and balanced, the ellipse adjustment column 15 and the upper right column 11 are fixed and locked by the rotating locking shaft 10 Together, the thin end of the rotating locking shaft 10 cooperates with the threaded hole at the end of the ellipse adjustment column 15, and then the rotating locking shaft 10 is fixed on the upper right column 11 by a bolt.

The above-mentioned active adjustment mechanism, self-adaptive adjustment mechanism and corresponding locking device together form an inclination adjustment mechanism, which adjusts to obtain the required inclination angle of the beam, thereby ensuring the high straightness and stable operation of the slide on the beam.

Claims (7)

1. a kind of gantry structure crossbeam of achievable Slope angle adjustment, it is characterised in that vertical including lathe bed (1), left column, the right side Post, crossbeam (8), active accommodation mechanism, adaptive adjustment mechanism and locking device；

Described crossbeam (8) is connected on lathe bed (1) by left column and right column and forms gantry structure；

Described active accommodation mechanism includes puller bolt (5), and the upper wedge shape being arranged in left column top rectangular groove Block (14) and lower wedge (13)；Lower wedge (13) is fixedly connected with left column, and upper wedge (14) upper end connects with crossbeam (8) Touch, lower end is slidably matched with upper wedge (14) along crossbeam (8) length direction；Left column top rectangular groove two ends are fixed respectively Set wedge to cover (4), puller bolt (5) turns through wedge capping (4) and two end in contact of upper wedge (14), use In the position of the upper wedge (14) of adjustment；

Described adaptive adjustment mechanism includes the oval adjustment column (15) being arranged in right column top arc groove；Ellipse is adjusted The side of whole post (15) is in plane and fixed with crossbeam (8), and opposite side is set in the face of cylinder to exist with right column top arc groove Crossbeam (8) length direction is rotatably assorted；

The position of upper wedge (14) is adjusted by turning through the puller bolt (5) of wedge capping (4), and then from one end The angle of inclination of crossbeam (8) is adjusted, crossbeam (8) other end is coordinated by adaptive adjustment mechanism to be rotated, and finally realizes crossbeam (8) Level tune after, it is by locking device that active accommodation mechanism and adaptive adjustment mechanism is locked, and by crossbeam (8) respectively with Left column is fixedly connected with right column.

2. the gantry structure crossbeam of a kind of achievable Slope angle adjustment according to claim 1, it is characterised in that described Left column and right column are constituted by two root posts up and down, and lower-left column (2) and bottom right column (12) are used to support connection, upper left Column (2) is used to supporting connection and for active adjustment mechanism provides installation pedestal by the rectangular recess of setting；Upper right column (11) it is used to supporting connection and for adaptive adjustment mechanism provides installation pedestal by the arc groove of setting.

3. a kind of gantry structure crossbeam of achievable Slope angle adjustment according to claim 1, it is characterised in that upper wedge shape Block (14) coordinates the rectangular recess and rectangular boss of slip with being set respectively on the contact inclined-plane of lower wedge (13) so that wedge shape Block is along crossbeam (8) length direction linear slide.

4. the gantry structure crossbeam of a kind of achievable Slope angle adjustment according to claim 1, it is characterised in that described Arc groove includes two sections of spaced cyclotomy arcs projections, and the face of cylinder of oval adjustment column (15) connects with two sections of cyclotomy arc projections Touch and be rotatably assorted.

5. the gantry structure crossbeam of a kind of achievable Slope angle adjustment according to claim 1, it is characterised in that described Locking device includes the left fixed block of crossbeam (7) and the right fixed block of crossbeam (9)；Crossbeam (8) left and right ends are respectively by the left fixation of crossbeam Block (7) and the right fixed block of crossbeam (9) are fixedly connected on left column and right column.

6. the gantry structure crossbeam of a kind of achievable Slope angle adjustment according to claim 1, it is characterised in that described Locking device includes crossbeam latch segment (6) and clamping screw (17)；Crossbeam latch segment (6) is used for from crossbeam (8) end and wedge shape Block capping (4) is fixedly connected；Rectangular recess both sides at the top of left column offer waist round hole (16), the inclination angle of waist round hole (16) Degree is identical with the inclination angle on wedge inclined-plane, and clamping screw (17) fixes upper wedge (14) with left column through waist round hole (16) Locking.

7. the gantry structure crossbeam of a kind of achievable Slope angle adjustment according to claim 1, it is characterised in that described Locking device includes the rotation lock mandrel (10) for being separately positioned on right column arc groove two ends；Rotation lock mandrel (10) includes same End plate and ladder shaft part that axle is set, end plate are fixed on the end of right column arc groove, ladder shaft part and oval adjustment column (15) screwed hole of end, which coordinates, fixes.