Machine tool sizing block leveling device

Abstract

The utility model relates to the technical field of machine tools, in particular to a machine tool sizing block leveling device, which comprises a foot margin main body, a shifting piece and an adjusting seat, the foot margin main body is fixed in a foundation grouting opening below a guide rail of a machine tool body, and the lower end of the adjusting seat penetrates into the foot margin main body and is in threaded connection with the inner side of the foot margin main body. The upper end of the adjusting base penetrates into an adjusting groove formed in the middle of a lathe bed guide rail, a bearing part used for supporting the lathe bed guide rail is fixed to the outer side of the adjusting base, and the shifting piece is connected with the adjusting base in the adjusting groove in a matched mode so as to drive the adjusting base to rotate in the axial direction. The leveling device can improve the leveling precision and efficiency of the sizing block at the bottom of the guide rail of the lathe bed.

Description

Technical Field

[0001] The utility model relates to the technical field of machine tools, in particular to a machine tool mattress leveling device. Background Art

[0002] At present, the bed guide rails of machine tools are leveled by installing support shims around the guide rails. However, for large machine tools, the bed guide rails have a large span. If support shims are only installed on the sides of the bed guide rails, the machine tool bed will be deformed under the action of its own weight and the weight of the workpiece, thereby affecting the machine tool accuracy.

[0003] At present, machine tool manufacturers usually need to install shims in the middle of the bed for support to solve this problem; however, large machine tools have structural limitations and need to be constantly adjusted and tested with the help of tools, which makes the adjustment process of the shims in the middle of the bed cumbersome and seriously affects the installation and debugging speed of the machine tool. Utility Model Content

[0004] In order to solve the above-mentioned deficiencies in the prior art, the utility model provides a machine tool shim leveling device to improve the leveling accuracy and efficiency of the shim at the bottom of the bed guide rail.

[0005] The technical solution of the utility model is: a machine bed iron leveling device, including a foot body, a toggle and an adjustment seat, the foot body is fixed in the foundation grouting port below the bed rail, the lower end of the adjustment seat penetrates into the foot body and is threadedly connected with the inner side of the foot body, the upper end of the adjustment seat penetrates into the adjustment groove provided in the middle of the bed rail, a bearing part for supporting the bed rail is fixed on the outer side of the adjustment seat, the toggle is connected with the adjustment seat in the adjustment groove to drive the adjustment seat to rotate around the axis. The device is provided with corresponding adjustment grooves and foundation grouting ports on the foundation in the middle of the bed rail and below the bed rail, and a toggle and a foot body are provided in the adjustment groove and the foundation grouting port, the toggle is operated in the adjustment groove to drive the adjustment seat in the foot body to rotate, and then the height of the bearing part on the adjustment seat is changed, the adjustment of the middle of the bed rail is realized, and then the adjustment of the bed rail of the machine tool is completed in cooperation with the peripheral support shims, and the adjustment accuracy and efficiency are ensured.

[0006] The lower end of the toggle member is provided with a rotating shaft portion, the upper end of the adjustment seat is provided with a rotating groove for the rotating shaft portion to be inserted, and the rotating shaft portion and the rotating groove are respectively provided with a transmission key and a key groove that cooperate with each other.

[0007] The lower end of the toggle member is provided with a rotating shaft portion, and the upper end of the adjustment seat is provided with a rotating groove for the rotating shaft portion to be inserted into. The rotating shaft portion and the rotating groove are respectively prism and prism groove structures that cooperate with each other.

[0008] The leveling device further includes a double-headed bolt and a locking nut. A sliding channel for the double-headed bolt to pass through is formed in the middle of the adjusting seat and the toggling member. The lower end of the double-headed bolt penetrates into the main body of the floor bolt and is threadedly connected to the inner side of the main body of the floor bolt. The upper end of the double-headed bolt passes through the toggling member and is threadedly connected to the locking nut. A pressing portion that contacts the bottom of the adjusting groove is fixed to the outer side of the toggling member. By providing the double-headed bolt and the locking nut, the double-headed bolt sequentially passes through the toggling member, the adjusting seat, and the main body of the floor bolt and then is connected to the inner side of the main body of the floor bolt. The locking nut locks the upper end of the toggling block. At this time, the pressing portion of the toggling block and the bearing portion of the adjusting seat jointly position the adjusting groove of the bed body guide rail at the axial position of the double-headed bolt, reducing the stress offset generated by the bed body guide rail on the adjusting seat during the leveling process, thereby improving the leveling accuracy and stability of the machine tool.

[0009] The toggling member, the adjusting seat, the main body of the floor bolt, and the double-headed bolt are coaxially arranged.

[0010] The distance between the upper surface of the bearing portion and the upper end of the adjusting seat is not greater than the distance between the lower surface of the bed body guide rail and the bottom of the adjusting groove.

[0011] A pressing washer is provided between the pressing portion and the bottom of the adjusting groove.

[0012] The main body of the floor bolt includes an upper floor bolt seat and a lower floor bolt seat. Both the upper floor bolt seat and the lower floor bolt seat are hollow structures. The upper end of the upper floor bolt seat has a first internal thread portion that is threadedly engaged with the external thread portion at the lower end of the adjusting seat. The upper end of the lower floor bolt seat has a second internal thread portion that is threadedly engaged with the double-headed bolt.

[0013] A protective cover is provided on the adjusting groove. The protective cover is detachably installed at the notch of the adjusting groove. The protective cover effectively protects the various adjusting members inside the adjusting groove from being eroded by oil and water.

[0014] The beneficial effects of the present utility model are as follows: In this solution, corresponding adjusting grooves and foundation grouting ports are provided on the foundation under the middle of the bed body guide rail and the bed body. A toggling member and a main body of the floor bolt are provided in the adjusting groove and the foundation grouting port. The toggling member drives the adjusting seat inside the main body of the floor bolt to rotate, thereby changing the height of the bearing portion on the adjusting seat and realizing the adjustment of the middle of the bed body guide rail. Then, in cooperation with the peripheral support shims, the leveling work of the bed body guide rail of the machine tool is completed. Compared with the prior art method of installing shims in the middle under the bed body, the leveling efficiency is effectively improved, and at the same time, the leveling accuracy is ensured. Description of the Drawings

[0015] Figure 1 is a schematic connection structure diagram of the present utility model and the bed body guide rail;

[0016] Figure 2 is a schematic disassembled structure diagram of the present utility model.

[0017] Figure markings: 1. Anchor body; 101. Anchor upper seat; 102. Anchor lower seat; 103. Connecting hole; 104. Annular boss; 2. Adjusting seat; 201. External threaded portion; 202. Bearing portion; 203. Rotating groove; 204. Keyway; 3. Bed guide rail; 301. Adjusting groove; 4. Foundation grouting port; 5. Toggle piece; 501. Rotating shaft portion; 502. Transmission key; 503. Sliding channel; 504. Clamping portion; 6. Stud bolt; 7. Locking nut; 8. Clamping washer; 9. Protective cover. DETAILED DESCRIPTION

[0018] In order to enable those skilled in the art to better understand the technical solution in the utility model, the technical solution in the utility model is clearly and completely described below in conjunction with the accompanying drawings. Other embodiments obtained by those skilled in the art without making any creative work should all fall within the protection scope of the utility model.

[0019] like Figure 1 and Figure 2 As shown, the utility model provides a machine bed iron leveling device, including a foot main body 1, a toggle member 5 and an adjustment seat 2, the foot main body 1 is fixed in the foundation grouting port 4 below the bed guide rail 3, the lower end of the adjustment seat 2 penetrates into the foot main body 1 and is threadedly connected with the inner side of the foot main body 1, the upper end of the adjustment seat 2 penetrates into an adjustment groove 301 provided in the middle of the bed guide rail 3, a bearing portion 202 for supporting the bed guide rail is fixed to the outer side of the adjustment seat 2, preferably, the bearing portion 202 can be integrally formed on the outer side of the adjustment seat 2, and can also be fixed by welding; the toggle member 5 is cooperatively connected with the adjustment seat 2 in the adjustment groove 301 to drive the adjustment seat 2 to rotate around the axis.

[0020] Specifically in the embodiment, the lower end of the toggle member 5 has a rotating shaft portion 501, and the upper end of the adjustment seat 2 is provided with a rotating groove 203 for the rotating shaft portion 501 to be inserted, and the rotating shaft portion 501 and the rotating groove 203 are respectively provided with a transmission key 502 and a key groove 204 that cooperate with each other. The above-mentioned toggle member 5 drives the rotation of the adjustment seat 2 through the cooperation of the transmission key 502 and the key groove 204. In other embodiments, the rotating shaft portion 501 and the rotating groove 203 can be set to a prism and prism groove structure that cooperates with each other, and the adjustment seat 2 is driven to rotate under the cooperation of the prism and the prism groove; preferably, in order to facilitate the rotation of the toggle member 5 in the adjustment groove 301, the upper end of the toggle member 5 is a hexagonal prism structure, and the operator can rotate it with a wrench or pliers.

[0021] By providing corresponding adjustment slots 301 and foundation grouting ports 4 on the foundation below the middle of the bed guide rail 3 and below the bed guide rail 3, and arranging a toggling member 5 and a foundation bolt main body 1 in the adjustment slot 301 and the foundation grouting port 4, the toggling member 5 drives the adjustment seat 2 inside the foundation bolt main body 1 to rotate, thereby changing the height of the bearing portion 202 on the adjustment seat 2 and achieving the adjustment of the middle part of the bed guide rail 3. Compared with the prior art method of installing shims under the middle of the bed, the leveling efficiency is effectively improved and the adjustment accuracy is ensured.

[0022] Further preferably, in order to improve the convenience of connecting the device to the bed guide rail 3, as Figure 1 and Figure 2 shown, this leveling device further includes a stud bolt 6 and a locking nut 7. A sliding channel 503 is formed in the middle of the adjustment seat 2 and the toggling member 5. The stud bolt 6 is slidably arranged through the sliding channel 503. The lower end of the stud bolt 6 penetrates into the foundation bolt main body 1 and is threadedly connected to the inner side of the foundation bolt main body 1. The upper end of the stud bolt 6 passes through the toggling member 5 and is threadedly connected to the locking nut 7. A pressing portion 504 that contacts the bottom of the adjustment slot 301 is fixed on the outer side of the toggling member 5. Through the cooperative connection of the upper and lower ends of the stud bolt 6 with the foundation bolt main body 1 and the locking nut 7, the pre-fixation of the device on the bed guide rail 3 can be achieved. With the hoisting operation of the bed guide rail 3, the bottom of the foundation bolt main body 1 is placed in the large-sized foundation grouting port 4, and the foundation bolt main body 1 is fixed by cement grouting. At this time, the device is stably located between the foundation and the bed guide rail 3, thereby completing the subsequent leveling operation; at the same time, under the combined action of the pressing portion 504 of the toggling block and the bearing portion 202 of the adjustment seat 2, the through hole of the adjustment slot 301 can always be coaxial with the central axis of the stud bolt 6, thereby reducing the stress offset generated by the bed guide rail 3 on the adjustment seat 2 during the leveling process, thereby improving the leveling accuracy and stability of the machine tool. Further preferably, the toggling member 5, the adjustment seat 2, the foundation bolt main body 1, and the stud bolt 6 are coaxially arranged.

[0023] In order to ensure that the pressing portion 504 of the toggling block always contacts the bottom of the adjustment slot 301 during the leveling process, the distance between the upper surface of the bearing portion 202 and the upper end of the adjustment seat 2 is not greater than the distance between the lower surface of the bed guide rail 3 and the bottom of the adjustment slot 301. Further preferably, a pressing washer 8 is provided between the pressing portion 504 and the bottom of the adjustment slot 301.

[0024] In this embodiment, the anchor body 1 adopts a split design, including an upper anchor seat 101 and a lower anchor seat 102 arranged up and down, the upper anchor seat 101 and the lower anchor seat 102 are both hollow structures, the upper end of the upper anchor seat 101 has a first internal threaded portion threadedly matched with the external threaded portion 201 at the lower end of the adjustment seat 2, and the upper end of the foot seat 102 has a second internal threaded portion threadedly matched with the stud bolt 6. In order to increase the anchoring force between the anchor body 1 and the foundation grouting port 4, a plurality of annular bosses 104 are formed at intervals along the vertical direction on the outer sides of the upper anchor seat 101 and the foot seat 102, and the annular bosses 104 can be formed as circular bosses or square bosses, etc. Further preferably, a connecting hole 103 is opened on the outer side of the anchor upper seat 101 and the foot lower seat 102, and the connecting hole 103 connects the inner cavity and the outside of the anchor upper seat 101 / the foot lower seat 102. When pouring cement, the cement can flow into the inner cavity through the connecting hole 103, which not only enhances the axial tensile capacity of the anchor body 1, but also limits the axial torsion of the stud bolt 6 in the anchor body 1, thereby ensuring the axial stability of the stud bolt 6.

[0025] like Figure 1 As shown, in order to prevent oil and water on the machine tool from invading the adjusting groove 301 and causing the toggle block and the locking bolt to rust, a protective cover 9 is provided on the adjusting groove 301 , and the protective cover 9 is detachably installed at the notch of the adjusting groove 301 .

[0026] When implementing this technical solution, if Figure 1As shown, the required number of adjustment slots 301 are set in the middle of the bed guide rail 3 according to the span, and a corresponding number of foundation grouting holes 4 with the same position spacing as the adjustment slots 301 are opened on the foundation of the machine tool to be installed, and the adjustment seat 2, the upper base 101, the lower base 102 and the stud bolts 6 are connected to each other in turn, the upper end of the adjustment seat 2 is connected to the toggle member 5 through the through hole in the adjustment slot 301, and the locking nut 7 is threadedly connected to the upper end of the stud bolt 6 extending out of the toggle member 5 to complete the pre-connection of the leveling device on the bed guide rail 3; the bed guide rail 3 is hoisted to the foundation of the machine tool, at this time, the upper base 101 and the lower base 102 under the bed guide rail 3 are immersed in the foundation grouting hole 4, and the bed guide rail 3 is supported by support pads. The rail 3 is leveled all around; cement is passed into the foundation grouting port 4 and filled. After the cement is completely solidified, a wrench is used to rotate the toggle piece 5 in each adjusting groove 301. The toggle piece 5 drives the adjusting seat 2 to rotate spirally under the axial limit of the transmission key 502 and the keyway 204, until the bearing portion 202 of the adjusting seat 2 and the pressing portion 504 of the toggle piece 5 are respectively in close contact with the lower surface of the bed guide rail 3 and the bottom of the adjusting groove 301, thereby completing the fine-tuning of the middle part of the bed guide rail 3. After adjustment, the locking nut 7 is locked on the upper surface of the toggle piece 5, and the protective cover 9 above the adjusting groove 301 is installed. Compared with the prior art method of repeatedly adjusting the size of the shim in the middle part below the bed, the present device effectively improves the leveling efficiency while ensuring accuracy.

Claims

1. A machine tool mattress leveling device, characterized in that: It includes a base body, a toggle piece and an adjusting seat. The base body is fixed in the foundation grouting port below the bed guide rail. The lower end of the adjusting seat is inserted into the base body and is threadedly connected to the inner side of the base body. The upper end of the adjusting seat is inserted into an adjusting groove provided in the middle of the bed guide rail. A bearing part for supporting the bed guide rail is fixed to the outer side of the adjusting seat. The toggle piece is connected with the adjusting seat in the adjusting groove to drive the adjusting seat to rotate around the axis.

2. The machine tool mattress leveling device according to claim 1, characterized in that: The lower end of the toggle member is provided with a rotating shaft portion, the upper end of the adjustment seat is provided with a rotating groove for the rotating shaft portion to be inserted, and the rotating shaft portion and the rotating groove are respectively provided with a transmission key and a key groove that cooperate with each other.

3. The machine tool mattress leveling device according to claim 1, characterized in that: The lower end of the toggle member is provided with a rotating shaft portion, and the upper end of the adjustment seat is provided with a rotating groove for the rotating shaft portion to be inserted into. The rotating shaft portion and the rotating groove are respectively prism and prism groove structures that cooperate with each other.

4. A machine tool mattress leveling device according to any one of claims 1 to 3, characterized in that: It includes a stud bolt and a locking nut. A sliding channel for the stud bolt to pass through is opened in the middle of the adjustment seat and the toggle piece. The lower end of the stud bolt passes through the anchor body and is threadedly connected to the inner side of the anchor body. The upper end of the stud bolt passes through the toggle piece and is threadedly connected to the locking nut. A clamping part in contact with the bottom of the adjustment groove is fixed on the outer side of the toggle piece.

5. The machine bed iron leveling device according to claim 4, characterized in that: The toggle member, the adjustment seat, the anchor body and the stud bolt are coaxially arranged.

6. The machine tool mattress leveling device according to claim 4, characterized in that: The distance between the upper surface of the bearing portion and the upper end of the adjusting seat is not greater than the distance between the lower surface of the bed guide rail and the bottom of the adjusting groove.

7. The machine tool mattress leveling device according to claim 6, characterized in that: A pressing washer is provided between the pressing portion and the bottom of the adjusting groove.

8. The machine tool mattress leveling device according to claim 4, characterized in that: The anchor body includes an upper anchor seat and a lower anchor seat, both of which are hollow structures. The upper end of the upper anchor seat has a first internal threaded portion that is threadedly matched with the external threaded portion of the lower end of the adjustment seat, and the upper end of the foot seat has a second internal threaded portion that is threadedly matched with the stud bolt.

9. The machine tool mattress leveling device according to claim 1, characterized in that: The adjusting slot is provided with a protective cover, and the protective cover is detachably mounted at the notch of the adjusting slot.

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