Accurate grinding tool for inclined lathe bed of heavy-duty machine tool

Abstract

A heavy machine tool slant body accurate grinding tool comprises V-shaped supports installed at the two ends of a working table of a grinding machine, the V-shaped supports are provided with a first slant and a second slant which are oppositely arranged, and the two ends of the first slant and the two ends of the second slant are in threaded connection with jack bolts protruding out of the first slant and the two ends of the second slant respectively. A fine adjustment mechanism is arranged at the end part of the V-shaped support and consists of a U-shaped frame, a tension bolt and a thrust bolt, the end part of the V-shaped support is sleeved in the U-shaped frame, two arms at the inner end of the U-shaped frame are fixedly connected with the working table respectively, the tension bolt penetrates through the outer end of the U-shaped frame and then is in threaded connection with the V-shaped support, a nut is sleeved on the tension bolt, and the thrust bolt is in threaded connection with the V-shaped support. The nut is located on the outer side of the U-shaped frame and abuts against the outer end of the U-shaped frame, and the nut is rotated to enable the tension bolt to drive the V-shaped support to move outwards. The thrust bolt is connected to the outer end of the U-shaped frame in a threaded mode, and the V-shaped support can be pushed to move inwards by rotating the thrust bolt. The utility model aims to overcome the defects in the prior art.

Description

TECHNICAL FIELD

[0001] The utility model belongs to heavy machine tool manufacturing technical field, especially relate to a heavy machine tool inclined bed body fine grinding frock. BACKGROUND

[0002] The existing inclined bed body guide rail mounting surface adopts V type auxiliary frock support bed body when grinding, and the closest technology to the utility model is: a inclined bed body planing and grinding purpose positioning support device (CN104325321A), when fine grinding inclined bed body guide rail mounting surface and side positioning surface, first place the inclined bed body on the V type seat, then fix the dial gauge on the grinding head, align the mounting surface and side positioning surface two end error to within 0.02mm, and limit through the jacking bolt on the two end side walls;Among them, when aligning the guide rail mounting surface, realize through adjusting the jacking bolt on the two inclined surfaces in the V type seat, when aligning the side positioning surface, still need to realize through traditional method--knocking the V type seat to change its position, the aligning efficiency is low, and the labor intensity is big;Especially when fine grinding heavy inclined bed body (weight is greater than 20 tons), when aligning the side positioning surface, only through knocking the V type seat can not align to within 0.02mm. SUMMARY

[0003] The utility model provides a heavy machine tool inclined bed body fine grinding frock to overcome the insufficient of prior art.

[0004] The utility model discloses a heavy machine tool inclined bed body fine grinding frock, including the V type support of the worktable surface both ends of grinding machine, the V type support has the inclined surface one, the inclined surface two of opposite arrangement, the both ends of inclined surface one and inclined surface two are respectively screwed with the jacking bolt of convex inclined surface one, inclined surface two;The end of V type support is provided with fine adjustment mechanism, and the fine adjustment mechanism is composed of U type frame, tension bolt and thrust bolt, the end of V type support is sleeved in U type frame, and the two arms of U type frame inner end are fixedly connected with worktable surface, and the tension bolt is screwed with V type support after passing U type frame outer end, and the tension bolt is sleeved with nut, and the nut is located on the outside of U type frame and is tightly contacted with U type frame outer end, and the rotation nut makes the tension bolt drive V type support move outward;Thrust bolt is screwed in U type frame outer end, and the rotation thrust bolt can drive V type support to move inward.

[0005] The outside of V type support is equipped with limit seat, and the limit seat is fixed on the worktable surface, and the limit screw is installed horizontally on the upper portion of limit seat.

[0006] The V-shaped support is composed of a bottom plate, a support one and a support two, the support one and the support two are fixed on the bottom plate, the inclined surface one is fixed on the upper end of the support one, the inclined surface two is fixed on the upper end of the support two, both ends of the inclined surface one and the inclined surface two are provided with horizontal rib plates, the jack bolt is threadedly connected with the horizontal rib plate and protrudes from the horizontal rib plate, and the end portion of the bottom plate is sleeved in the U-shaped frame.

[0007] The two arms of the inner end of the U-shaped frame are respectively fixedly connected with fixed seats, and the fixed seats are fixedly connected with the workbench surface.

[0008] Compared with the prior art, the utility model has the beneficial effects that:

[0009] 1、The utility model discloses a micro-adjusting mechanism is arranged at the end portion of the V-shaped support, so that the problem that the side positioning surface is difficult to align during heavy machine tool inclined bed body fine grinding is solved, and the alignment efficiency and precision are improved.

[0010] 2、The utility model solves the problem that how to arrange the micro-adjusting mechanism when the width of the inclined bed body exceeds the width of the grinding machine workbench surface, so that the machining requirement of the super-wide inclined bed body is met, and the structure is simple, the cost is low, and the utility model is suitable for promoting and using. DRAWINGS

[0011] Figure 1 It is the structure schematic diagram of the utility model;

[0012] Figure 2 It is the micro-adjusting mechanism structure schematic diagram of the utility model;

[0013] Figure 3 It is the V-shaped support structure schematic diagram of the utility model;

[0014] Figure 4 It is the limiting seat structure schematic diagram of the utility model;

[0015] Figure 5 It is Figure 1 The local enlarged view of A in the figure. PREFERRED EMBODIMENT

[0016] The utility model will be explained in detail in combination with the drawings and specific embodiment. Figures 1-5

[0017] ​The heavy machine tool inclined bed precision grinding tool comprises a V-shaped support 1 installed at both ends of the workbench surface 4 of a grinding machine, the V-shaped support 1 is provided with oppositely arranged inclined surface one 1-1 and inclined surface two 1-2, the two ends of the inclined surface one 1-1 and the inclined surface two 1-2 are respectively threadedly connected with jack bolts 1-3 protruding from the inclined surface one 1-1 and the inclined surface two 1-2, and the end of the V-shaped support 1 is provided with a fine adjustment mechanism 2, and four fine adjustment mechanisms 2 are arranged in total.

[0018] In the above embodiment, in order to effectively limit the sliding of the inclined bed 5 during the machining process, a limiting seat 3 is arranged on the outer side of the V-shaped support 1, the limiting seat 3 is fixed on the workbench surface 4, and a limiting screw 3-1 is horizontally arranged on the upper part of the limiting seat 3. By rotating the limiting screw 3-1 on the upper part, the inner end of the limiting screw 3-1 is tightly abutted against the end of the inclined bed 5, so that the inclined bed 5 is positioned

[0019] In the above embodiment, in order to facilitate manufacturing, the V-shaped support 1 is composed of a bottom plate 1-4, a support one 1-5 and a support two 1-6, the support one 1-5 and the support two 1-6 are fixed on the bottom plate 1-4, the inclined surface one 1-1 is fixed on the upper end of the support one 1-5, and the inclined surface two 1-2 is fixed on the upper end of the support two 1-6, the two ends of the inclined surface one 1-1 and the inclined surface two 1-2 are provided with transverse rib plates 1-7, the jack bolts 1-3 are threadedly connected with the transverse rib plates 1-7 and protrude from the transverse rib plates 1-7, and the end of the bottom plate 1-4 is sleeved in the U-shaped frame 2-2. Preferably, the included angle between the inclined surface one 1-1 and the bottom plate 1-4 is 30°, and the included angle between the inclined surface two 1-2 and the bottom plate 1-4 is 60°.

[0020] In the above embodiment, when the width of the inclined bed 5 exceeds the width of the workbench surface 4, the width of the V-shaped support 1 must exceed the width of the workbench surface 4, therefore, the two arms of the inner end of the U-shaped frame 2-2 are respectively fixedly connected with a fixing seat 2-1, the fixing seat 2-1 is fixedly connected with the workbench surface 4, so that the U-shaped frame 2-2 is suspended on the outer side of the workbench surface 4, so as to satisfy the sleeving of the U-shaped frame 2-2 and the end of the V-shaped support 1.

[0021] In specific use, first, the V-shaped support 1 is fixed at both ends of the worktable surface 4 of the grinding machine, then the inclined bed body 5 is hoisted and placed on the inclined surface one 1-1 and the inclined surface two 1-2; the dial indicator is fixed on the grinding head of the grinding machine, the worktable surface 4 is moved to measure the error of both ends of the guide rail mounting surface C of the inclined bed body 5, the error of both ends of the guide rail mounting surface C is less than 0.02mm through adjusting the jack bolt 1-3; then the worktable 4 is moved to measure the error of both ends of the side positioning surface B of the inclined bed body 5, taking any fixed V-shaped support 1 as a reference, the position of the other V-shaped support 1 is adjusted through the fine adjustment mechanism 2, the position of the V-shaped support 1 is adjusted according to the actual measurement result, the error of both ends of the side positioning surface B is less than 0.02mm, then the V-shaped support 1 is fixed, the limiting seat 3 is fixed on the worktable surface 4 outside the two V-shaped supports 1, and the limiting screw 3-1 at the upper part is rotated to make the inner end abut against the end of the inclined bed body 5, the inclined bed body 5 is positioned, and then the fine grinding processing can be carried out.

[0022] The above embodiment is only a preferred embodiment of the present application, and is not used to limit the implementation scope of the present application, so that any equivalent changes made according to the content of the present application claims should be included in the scope of the present application claims.

Claims

1. A heavy machine tool inclined bed precision grinding tool, comprising V-shaped supports (1) installed at both ends of the workbench surface (4) of a grinding machine, the V-shaped supports (1) are provided with oppositely arranged inclined surface one (1-1) and inclined surface two (1-2), the ends of the inclined surface one (1-1) and the inclined surface two (1-2) are respectively threadedly connected with jackscrews (1-3) protruding from the inclined surface one (1-1) and the inclined surface two (1-2); characterized in that: The end of the V-shaped support (1) is provided with a fine adjustment mechanism (2), which is composed of a U-shaped frame (2-2), a tension bolt (2-3) and a thrust bolt (2-4). The V-shaped support (1) is sleeved in the U-shaped frame (2-2), the two arms of the inner end of the U-shaped frame (2-2) are fixedly connected with the workbench top (4) respectively, the tension bolt (2-3) is threaded with the V-shaped support (1) after passing through the outer end of the U-shaped frame (2-2), the nut (2-5) is sleeved on the tension bolt (2-3), and the nut (2-5) is located on the outer side of the U-shaped frame (2-2) and abuts against the outer end of the U-shaped frame (2-2), rotating the nut (2-5) can drive the V-shaped support (1) to move outward; the thrust bolt (2-4) is threaded on the outer end of the U-shaped frame (2-2), and rotating the thrust bolt (2-4) can drive the V-shaped support (1) to move inward.

2. The heavy machine tool inclined bed precision grinding tooling device according to claim 1, characterized in that: The outer side of the V-shaped support (1) is provided with a limiting seat (3), which is fixed on the workbench top (4), and the limiting screw (3-1) is horizontally installed on the upper part of the limiting seat (3).

3. The heavy machine tool miter bed fine grinding tooling apparatus of claim 1, wherein: The V-shaped support (1) is composed of a bottom plate (1-4), a support one (1-5) and a support two (1-6), the support one (1-5) and the support two (1-6) are fixed on the bottom plate (1-4); the inclined surface one (1-1) is fixed on the upper end of the support one (1-5), and the inclined surface two (1-2) is fixed on the upper end of the support two (1-6); the both ends of the inclined surface one (1-1) and the inclined surface two (1-2) are provided with transverse rib plates (1-7), the jack bolt (1-3) is threaded with the transverse rib plate (1-7) and protrudes from the transverse rib plate (1-7), and the end of the bottom plate (1-4) is sleeved in the U-shaped frame (2-2).

4. The heavy machine tool miter bed fine grinding tooling of claim 1, wherein: The two arms of the inner end of the U-shaped frame (2-2) are fixedly connected with the fixed seat (2-1) respectively, and the fixed seat (2-1) is fixedly connected with the workbench top (4).

Images