Gantry machine tool parallelism measuring device

Abstract

The utility model relates to the technical field of machine tools, in particular to a gantry machine tool parallelism measuring device, which comprises a beam plate main body, a positioning seat, a meter clamping seat, a dial indicator and a meter aligning piece, the meter clamping seat and the positioning seat are oppositely fixed at two ends of the beam plate main body, the dial indicator is fixed on the meter clamping seat through a locking piece, and the meter aligning piece is fixed on the beam plate main body. A measuring head of the dial indicator vertically faces the inner side of the positioning seat, the meter alignment piece is arranged on the beam plate body and abuts against the inner side of the meter clamping seat through a limiting part, and a positioning gap for extruding the measuring head of the dial indicator to a first position is formed between the meter alignment piece and the left pressing plate; the device can accurately adjust the distance between the two stand columns of the gantry machine tool, is simple to operate when being used for measuring the parallelism, and effectively improves the working efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of machine tools, in particular to a parallelism measuring device for a gantry machine tool. Background Technique

[0002] During the installation process of a moving beam gantry machine tool and a large vertical lathe, the distance adjustment between two columns used to connect the crossbeam of the machine tool and the parallelism between the positioning surfaces of the two columns after adjustment are important links to ensure the accuracy of the machine tool.

[0003] The longer the gantry length, the greater the difficulty of parallelism adjustment. In the current workshop, when facing a large-span gantry with a maximum span exceeding 6 meters, the traditional method is to use a steel tape measure to measure the distance between the two columns, and then ensure the parallelism between the two columns by scraping the adjustment wedge on one side of the column positioning surface. However, in the actual assembly process, due to the large error in measuring the distance between the columns with a steel tape measure, it is difficult to measure the parallelism between the column positioning surfaces, and the scraping workload of the wedge is large, which seriously affects the assembly efficiency of the machine tool. Content of the Utility Model

[0004] To solve the deficiencies of the above-mentioned existing technologies, the utility model provides a parallelism measuring device for a gantry machine tool, which improves the accuracy of measuring the distance between columns and reduces the difficulty of measuring the parallelism between columns.

[0005] The technical solution of the utility model is as follows: A parallelism measuring device for a gantry machine tool includes a beam plate main body, a positioning seat, a dial indicator seat, a dial indicator and a dial alignment part. The dial indicator seat and the positioning seat are fixedly arranged oppositely at both ends of the beam plate main body. The dial indicator is fixed on the dial indicator seat through a locking part, and the measuring head of the dial indicator vertically faces the inner side of the positioning seat. The dial alignment part is placed on the beam plate main body and abuts against the inner side of the dial indicator seat through a limiting part. There is a positioning gap between the dial alignment part and the left pressing plate for squeezing the measuring head of the dial indicator to the first position. By respectively arranging a positioning seat and a dial indicator seat at both ends of the beam plate main body, and movably limiting the dial alignment part on the inner side of the dial indicator seat, the distance between the outer side of the dial alignment part and the inner side of the positioning seat at this time is the distance between the columns to be adjusted, and the value displayed when the measuring head of the dial indicator is compressed to the first position is the corresponding measured value, so as to realize accurate measurement during the adjustment of the distance between the two columns. The beam plate main body moves vertically along the column to multiple positions for positioning through the positioning seat. At this time, the displayed value of the dial indicator is used as the basis for measuring the parallelism between the columns, and the operation is convenient, thus effectively improving the subsequent assembly efficiency of the machine tool.

[0006] A left pressing plate detachably connected to the beam plate main body is fixed at the bottom of the dial indicator seat, a right pressing plate detachably connected to the beam plate main body is fixed at the bottom of the positioning seat, and the bottom of the dial alignment part is in sliding contact with the surface of the left pressing plate.

[0007] The alignment piece is an L-shaped seat body. The horizontal end of the L-shaped seat body forms the limiting part, and the gap between the inner side of the vertical end of the L-shaped seat body and the positioning seat forms the positioning gap.

[0008] The locking piece is a locking screw. A deformation groove for the lower bushing of the dial indicator to pass through is provided on the clamp table seat. Threaded holes are provided on the clamp table seat on both sides of the deformation groove. The locking screw is connected in cooperation with the threaded holes, and the width of the deformation groove is reduced to lock the lower bushing of the dial indicator.

[0009] First steel balls are respectively embedded on the surfaces of the left pressing plate and the right pressing plate.

[0010] Second steel balls are embedded inside the positioning seat. By arranging the first steel balls and the second steel balls, rolling contact is formed between the pressing plates and the positioning seat and the column, thereby improving the stability of parallelism measurement during sliding along the vertical direction of the column.

[0011] The number of the first steel balls on the right pressing plate is at least two, and they are evenly distributed on the right pressing plate along the width direction of the beam plate body.

[0012] The number of the second steel balls is at least two, and they are evenly distributed on the positioning seat along the width direction of the beam plate body. The side-by-side arrangement of multiple steel balls can ensure stable contact between the measuring device and the column.

[0013] The beneficial effects of the present utility model are as follows: In this solution, a positioning seat and a clamp table seat are respectively arranged at both ends of the beam plate body, and an alignment piece is movably and limitedly arranged inside the clamp table seat. At this time, the distance between the outer side of the alignment piece and the inner side of the positioning seat is the distance between the columns to be adjusted, and the value displayed when the measuring head of the dial indicator is compressed to the first position is the corresponding measured value, so as to realize accurate measurement during the adjustment of the distance between the two columns. The beam plate body is moved along the vertical direction of the column to multiple positions for positioning through the positioning seat. At this time, the displayed value of the dial indicator is used as the basis for parallelism measurement between the columns. The operation is convenient, thereby effectively improving the subsequent assembly efficiency of the machine tool. Description of the Drawings

[0014] Figure 1 is a schematic structural diagram of the present utility model;

[0015] Figure 2 is a schematic structural diagram of the connection between the present utility model and the column;

[0016] Figure 3 is a schematic structural diagram of the present utility model after removing the dial indicator and the alignment piece.

[0017] Reference numerals: 1, beam-slab main body; 2, left pressing plate; 3, right pressing plate; 4, positioning seat; 5, dial indicator seat; 501, deformation groove; 6, dial indicator; 7, dial alignment piece; 8, locking screw; 9, positioning gap; 10, first steel ball; 11, second steel ball; 12, hexagon socket head bolt; 13, column. Detailed implementation mode

[0018] To enable those skilled in the art to better understand the technical solutions in the present invention, the technical solutions in the present invention will be clearly and completely described below with reference to the accompanying drawings. Other embodiments obtained by those skilled in the art without creative efforts shall fall within the protection scope of the present invention.

[0019] As Figure 1 and Figure 2 shown, the present invention provides a parallelism measuring device for a gantry machine tool, including a beam-slab main body 1, a positioning seat 4, a dial indicator seat 5, a dial indicator 6 and a dial alignment piece 7. The dial indicator seat 5 and the positioning seat 4 are oppositely fixed at both ends of the beam-slab main body 1. In this embodiment, to reduce the processing difficulty of the device and improve its practicability, a left pressing plate 2 is fixed at the bottom of the dial indicator seat 5, and a right pressing plate 3 is fixed at the bottom of the positioning seat 4. The left pressing plate 2 and the right pressing plate 3 are detachably installed in the installation grooves provided at both ends of the beam-slab main body 1 through hexagon socket head bolts 12; the dial indicator 6 is fixed on the dial indicator seat 5 through a locking member, and the measuring head of the dial indicator 6 vertically faces the inner side of the positioning seat 4. The dial alignment piece 7 is placed on the surface of the left pressing plate 2 on the beam-slab main body 1. The bottom of the dial alignment piece 7 is in sliding contact with the surface of the left pressing plate 2 and abuts against the inner side of the dial indicator seat 5 through a limiting portion. There is a positioning gap 9 between the dial alignment piece 7 and the left pressing plate 2 for pressing the measuring head of the dial indicator 6 to the first position. By respectively arranging the positioning seat 4 and the dial indicator seat 5 at both ends of the beam-slab main body 1 and movably limiting the dial alignment piece 7 inside the dial indicator seat 5, the distance between the outer sides of the limited dial alignment piece 7 and the inner side of the positioning seat 4 is the distance D between the columns 13 to be adjusted, and the value displayed when the measuring head of the dial indicator 6 is compressed to the first position is the corresponding measured value, so as to realize accurate measurement when adjusting the distance between the two columns 13. The beam-slab main body 1 is moved vertically along the column 13 to multiple positions for positioning through the positioning seat 4. At this time, the value displayed by the dial indicator 6 is used as the basis for measuring the parallelism between the columns 13. The operation is convenient, thus effectively improving the subsequent assembly efficiency of the machine tool.

[0020] As Figure 1 shown, further preferably, the dial alignment piece 7 is an L-shaped seat body. The horizontal end of the L-shaped seat body forms the limiting portion, and the gap between the inner side of the vertical end of the L-shaped seat body and the positioning seat 4 forms the positioning gap 9.

[0021] As Figure 3As shown, in this embodiment, the locking member is a locking screw 8. A deformation groove 501 for the lower bushing of the dial indicator 6 to pass through is provided on the dial indicator holder 5. Threaded holes are provided on the dial indicator holder 5 on both sides of the deformation groove 501. The locking screw 8 is in mating connection with the threaded holes, and the width of the deformation groove 501 is reduced to lock the lower bushing of the dial indicator 6. In other embodiments, an installation hole for the lower bushing of the dial indicator 6 to pass through may be provided on the dial indicator holder 5. The locking screw 8 threadedly penetrates into the installation hole from the outside of the dial indicator holder 5 and is in locking contact with the surface of the lower bushing of the dial indicator 6.

[0022] In order to improve the stability of the parallelism measurement when the device slides vertically along the column 13, first steel balls 10 are respectively embedded on the surfaces of the left pressing plate 2 and the right pressing plate 3; second steel balls 11 are embedded inside the positioning seat 4. At this time, the minimum distance between the outer edge surface of the second steel column and the inner side of the vertical end of the L-shaped seat body is the distance D between the columns 13 to be adjusted.

[0023] In order to further ensure the stable contact between the measuring device and the column 13, the number of the first steel balls 10 on the right pressing plate 3 is at least two, and they are evenly distributed on the right pressing plate 3 in the width direction of the beam plate body 1; the number of the second steel balls 11 is at least two, and they are evenly distributed on the positioning seat 4 in the width direction of the beam plate body 1. Preferably, in this embodiment, the number of the first steel balls 10 on the right pressing plate 3 and the second steel balls 11 on the positioning seat 4 is two, and they are symmetrically distributed on both sides of the transverse axis of the beam plate body 1. The number of the first steel balls 10 on the left pressing plate 2 is one, and it is located on the transverse axis of the beam plate body 1.

[0024] When implementing the measurement with this device, as Figure 1 shown, the alignment member 7 is placed on the left pressing plate 2 and slides toward the dial indicator holder 5 until the end face of its horizontal end abuts against the inner side of the dial indicator holder 5. At this time, the vertical end of the alignment member 7 presses the measuring head of the dial indicator 6, and the displayed value A of the dial indicator 6 is recorded. The minimum distance between the inner side of the vertical end of the alignment member 7 and the outer edge surface of the second steel ball 11 is the width D between the columns 13 to be adjusted. In this embodiment, the set value of D is 6660 mm, and the set value of the positioning gap d is 10 mm; when adjusting the on-site gantry column 13, the alignment member 7 is removed, as Figure 2As shown, cover this device outside the two columns 13. The first steel ball 10 is in sliding contact with the surface of the column 13, and the second steel ball 11 of the positioning seat 4 is in sliding contact with the positioning surface of the right column 13. At this time, adjust the position of the left column 13. The positioning surface of the left column 13 squeezes the measuring head of the dial indicator 6. When the value of the dial indicator 6 reaches A, it means that the adjustment of the distance between the two columns 13 is completed; move this device a certain distance along the vertical direction of the column 13, and record the value B of the dial indicator 6. The difference between the two values of the dial indicator 6 is the parallelism between the two columns 13 in the measuring section. This device can accurately adjust the distance between the two columns 13 of the gantry machine tool, and is simple to operate when measuring parallelism, effectively improving the work efficiency.

Claims

1. A gantry machine tool parallelism measuring device, characterized in that: It includes a beam and slab main body, a positioning seat, a clamping seat, a dial indicator and a counter piece. The clamping seat and the positioning seat are fixed on the two ends of the beam and slab main body in opposite directions. The dial indicator is fixed to the clamping seat via a locking piece. The measuring head of the dial indicator is vertically facing the inner side of the positioning seat. The counter piece is placed on the beam and slab main body and abuts against the inner side of the clamping seat via a limiting part. There is a positioning gap between the counter piece and the left pressure plate for squeezing the measuring head of the dial indicator to the first position.

2. The parallelism measuring device for gantry machine tools according to claim 1, characterized in that: A left pressure plate detachably connected to the beam plate body is fixed at the bottom of the clamping seat, a right pressure plate detachably connected to the beam plate body is fixed at the bottom of the positioning seat, and the bottom of the counter-meter is in sliding contact with the surface of the left pressure plate.

3. The gantry machine tool parallelism measuring device according to claim 1 or 2, characterized in that: The counter-watch component is an L-shaped seat body, the horizontal end of the L-shaped seat body forms the limiting portion, and the gap between the inner side of the vertical end of the L-shaped seat body and the positioning seat forms the positioning gap.

4. The gantry machine tool parallelism measuring device according to claim 1 or 2, characterized in that: The locking piece is a locking screw, and the clamping seat is provided with a deformation groove for the lower sleeve of the dial indicator to pass through. The clamping seat is provided with threaded holes on both sides of the deformation groove. The locking screw is connected with the threaded holes and reduces the width of the deformation groove to lock the lower sleeve of the dial indicator.

5. The parallelism measuring device for gantry machine tools according to claim 2, characterized in that: First steel balls are respectively embedded in the surfaces of the left pressure plate and the right pressure plate.

6. The parallelism measuring device for gantry machine tools according to claim 5, characterized in that: The number of the first steel balls on the right pressure plate is at least two, and the first steel balls are evenly distributed on the right pressure plate along the width direction of the beam plate body.

7. The parallelism measuring device for gantry machine tools according to claim 1, 2 or 5, characterized in that: A second steel ball is embedded in the inner side of the positioning seat.

8. The parallelism measuring device for gantry machine tools according to claim 7, characterized in that: The number of the second steel balls is at least two, and they are evenly distributed on the positioning seat along the width direction of the beam and slab body.

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