Box body positioning fine adjustment tool

Abstract

The utility model discloses a box body positioning fine adjustment tool which comprises a guide rail supporting seat and a supporting plate which are installed on a machine tool body of a machine tool, and a positioning assembly and a fine adjustment assembly which are located on the two sides of the machine tool body and installed on the supporting plate. The guide rail supporting seat is provided with a lateral limiting surface for transversely limiting the linear guide rail, a theodolite is arranged on the linear guide rail, the positioning assembly and the fine adjustment assembly limit the two transverse sides of the box body, and the fine adjustment assembly is arranged close to the two ends of the box body and can conduct fine adjustment on the end portion of the box body in the transverse direction. After the box body is placed on the lathe bed, the distance between the inner walls of the two sides of the square box and the center shaft is measured through the theodolite installed on the linear guide rail, the fine adjustment assembly is adjusted according to the deviation value, the box body is corrected through the small displacement of the end of the box body, and therefore the positioning precision is improved.

Description

Technical Field

[0001] This utility model relates to the field of box positioning technology, and in particular to a box positioning fine-tuning tool. Background Technology

[0002] The square box is a rectangular container used as a launch tube or ammunition cartridge. The inner surface of the square box requires high machining precision. Therefore, precise positioning of the square box is necessary during milling. Current technology uses side positioning blocks to place the square box on the lathe during milling without further fine-tuning. However, due to the long dimensions of the box, even slight angular deviations can cause significant positional differences, resulting in tilting of the inner surface. Therefore, a fine-tuning fixture to improve the positioning accuracy of the box is needed. Utility Model Content

[0003] To address the technical problem in existing technologies where slight angular offsets easily occur during the milling and positioning of square boxes, resulting in large differences in the front and rear positions of the square box and affecting machining accuracy, this utility model provides a box positioning fine-tuning fixture to solve the above problems.

[0004] The technical solution adopted by this utility model to solve its technical problem is: a box positioning and fine-tuning fixture, including a guide rail support seat and a support plate installed on the bed of a machine tool, and a positioning component and a fine-tuning component located on both sides of the bed and installed on the support plate. A linear guide rail is installed on the guide rail support seat, and the guide rail support seat has a lateral limiting surface for lateral limiting of the linear guide rail. A theodolite is set on the linear guide rail. The positioning component and the fine-tuning component limit the lateral sides of the box. The fine-tuning component is arranged near both ends of the box and can finely adjust the ends of the box in the lateral direction.

[0005] In an optional embodiment of this utility model, the positioning component includes an adjusting seat, an adjusting bolt, and a positioning block fixed to the adjusting bolt. The adjusting bolt is threadedly connected to the adjusting seat, and the positioning block abuts against the lateral side of the housing.

[0006] In an optional embodiment of this utility model, the fine-tuning component includes a fine-tuning reference block and an adjusting screw threadedly connected to the fine-tuning reference block, wherein the adjusting screw has a universal head at one end facing the housing.

[0007] In an optional embodiment of this utility model, the linear guide rail includes an inner guide rail and an outer guide rail. The outer guide rail is located outside the housing and is normally fixed to the bed. The theodolite is fixed on the outer guide rail.

[0008] In an optional embodiment of this utility model, a plurality of rollers are installed at the bottom of the internal guide rail.

[0009] In an optional embodiment of this utility model, a lifting platform is installed on the bed surface at each end of the housing, and the lifting platform is adapted to lift the internal guide rail.

[0010] In an optional embodiment of this utility model, a pull rod is installed on the top of the adjusting seat, and the two ends of the chain pass around the top of the box and are respectively connected to two pull rods with the same cross-section.

[0011] The beneficial effects of this utility model are:

[0012] (1) After the box is placed on the bed, the distance between the inner walls on both sides of the box and the central axis is measured by the theodolite installed on the linear guide rail. The fine adjustment component is adjusted according to the deviation, and the box is corrected by the small displacement at the end of the box, thereby improving the positioning accuracy.

[0013] (2) The present invention divides the linear guide rail into an internal guide rail and an external guide rail. The internal guide rail is placed on the bed along with the housing, while the external guide rail is always fixed on the bed. The external guide rail can be used as a center positioning to avoid frequent disassembly and assembly, which would reduce the positioning accuracy. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0015] Figure 1 This is a perspective view of a specific embodiment of the box positioning fine-tuning tooling described in this utility model;

[0016] Figure 2 This is a front view of a specific embodiment of the box positioning fine-tuning tooling described in this utility model;

[0017] Figure 3 This is a top view of a specific embodiment of the box positioning fine-tuning tooling described in this utility model;

[0018] Figure 4 yes Figure 1 Enlarged view of point a;

[0019] Figure 5 yes Figure 1 Enlarged view of point b;

[0020] Figure 6 yes Figure 1 Enlarged view of point c;

[0021] Figure 7 yes Figure 2 A sectional view along line AA.

[0022] In the diagram, 1. Bed, 2. Guide rail support seat, 201. Lateral limiting surface, 3. Support plate, 4. Positioning assembly, 401. Adjusting seat, 402. Adjusting bolt, 403. Positioning block, 5. Fine-tuning assembly, 501. Fine-tuning reference block, 502. Adjusting screw, 6. Linear guide rail, 601. Internal guide rail, 602. External guide rail, 7. Roller, 8. Tie rod, 9. Lifting platform, 10. Housing. Detailed Implementation

[0023] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0024] Example 1

[0025] like Figures 1-3 , Figure 7 As shown, a box-type positioning and fine-tuning fixture includes a guide rail support 2 and a support plate 3 mounted on the bed 1 of a machine tool, as well as a positioning component 4 and a fine-tuning component 5 located on both sides of the bed 1 and mounted on the support plate 3. A linear guide rail 6 is mounted on the guide rail support 2, and the guide rail support 2 has a lateral limiting surface 201 for laterally limiting the linear guide rail 6. A theodolite is provided on the linear guide rail 6. The positioning component 4 and the fine-tuning component 5 limit the laterally on both sides of the box 10. The fine-tuning component 5 is arranged near both ends of the box 10 and can finely adjust the ends of the box 10 laterally.

[0026] In this utility model, the lateral direction refers to the direction perpendicular to the length direction of the box 10 in a horizontal plane, that is, the width direction of the box 10.

[0027] The linear guide 6 serves as the guide for the reciprocating motion of the cutter head. To ensure the flatness of the inner surface of the housing 10 after milling, the two sides of the inner surface of the housing 10 need to be symmetrical with respect to the linear guide 6. After the linear guide 6 is fixed, the center of the housing 10 is determined. The positioning component 4 abuts against the middle of the two transverse sides of the housing 10 to initially fix the housing 10. When the housing 10 is placed on the bed 1, it is directly clamped between the positioning components 4. At this time, the housing 10 is basically centered. Then, the distance between the two sides of the housing 10 and the center is accurately measured by the theodolite. If there is a deviation, it is adjusted by the fine-tuning component 5. It is not necessary to move the housing 10 as a whole to ensure positioning accuracy.

[0028] The guide rail support 2 and the support plate 3 serve as horizontal support surfaces. Multiple support plates 3 can be provided, with each positioning component 4 and fine-tuning component 5 placed on its respective support plate 3.

[0029] like Figure 6 As shown, the positioning assembly 4 may include, but is not limited to, an adjusting seat 401, an adjusting bolt 402, and a positioning block 403 fixed to the adjusting bolt 402. The adjusting bolt 402 is threadedly connected to the adjusting seat 401, and the positioning block 403 abuts against the lateral side of the housing 10. The adjusting bolt 402 can adjust the distance between the positioning block 403 and the central axis of the tooling. The positioning assembly 4 provides initial positioning for the housing 10. The positioning assembly 4 is preferably symmetrically arranged to ensure that the housing 10 is subjected to balanced forces.

[0030] like Figure 4 and Figure 5 As shown, the fine-tuning component 5 may include, but is not limited to, a fine-tuning reference block 501 and an adjusting screw 502 threadedly connected to the fine-tuning reference block 501. The adjusting screw 502 has a universal head (not shown in the figure) at one end facing the housing 10. The fine-tuning reference block 501 is fixed to the support plate 3, and the universal head reduces damage to the surface of the housing 10 caused by the adjusting screw 502. When fine-tuning of the housing 10 is required, the adjusting screw 502 is rotated.

[0031] Example 2

[0032] Because the linear guide 6 needs to extend into the housing 10, it requires frequent disassembly and reassembly. However, assembly errors can lead to misalignment after reassembly, necessitating adjustments to the positioning component 4. Therefore, as... Figure 2 and Figure 3 As shown, in this embodiment, the linear guide rail 6 is divided into two parts: an inner guide rail 601 and an outer guide rail 602. The outer guide rail 602 is located outside the housing 10 and is normally fixed to the bed 1. The theodolite is fixed on the outer guide rail 602. The inner guide rail 601 is removed or placed together with the housing 10. Since the outer guide rail 602 does not need to be removed, it can be used as the positioning center. After the housing 10 and the inner guide rail 601 are placed together, the end faces of the inner guide rail 601 and the outer guide rail 602 can be aligned. This eliminates the need for frequent adjustments to the position of the linear guide rail 6 and the positioning component 4.

[0033] In a further design, to facilitate the insertion or extension of the internal guide rail 601 into or out of the housing 10, it is preferable to install several rollers 7 at the bottom of the internal guide rail 601.

[0034] Example 3

[0035] Based on the above embodiments, such as Figure 6 As shown, a pull rod 8 is installed on the top of the adjusting seat 401. The two ends of the chain pass around the top of the housing 10 and are respectively connected to two pull rods 8 with the same cross-section. The top of the pull rod 8 has a through hole for the chain to pass through. The chain presses the housing 10 downward (the chain is not shown in the attached figure), which can prevent the housing 10 from being pushed upward during the milling process.

[0036] Example 4

[0037] During the milling process, the internal guide rail 601 is supported by the guide rail support seat 2 and does not contact the lower surface of the housing 10. Therefore, when the internal guide rail 601 and the housing 10 are placed on the bed 1 together, the internal guide rail 601 needs to be lifted above the guide rail support seat 2. The internal guide rail 601 is relatively long. In order to facilitate lifting, this embodiment makes the following improvement based on embodiment two: a lifting platform 9 is installed on the surface of the bed 1 at both ends of the housing 10. The lifting platform 9 is suitable for lifting the internal guide rail 601 and lifting the internal guide rail 601 by lifting the lifting platform 9.

[0038] As shown in the figure, the internal guide rail 601 is supported by guide rail support seats 2 located at both ends, the lifting platform 9 is located longitudinally between the guide rail support seats 2 and the box 10, and the external guide rail 602 is also supported by two guide rail support seats 2.

[0039] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0040] In this specification, the illustrative expressions of the terms do not necessarily refer to the same embodiments. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments.

[0041] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A box positioning fine adjustment tool, characterized by: The application relates to a box positioning device for a machine tool, which comprises guide rail support seats and support plates installed on the bed body of the machine tool, positioning assemblies and fine adjustment assemblies installed on the support plates and located on both sides of the bed body, linear guides installed on the guide rail support seats, lateral limiting surfaces of the guide rail support seats for limiting the linear guides in the transverse direction, theodolites arranged on the linear guides, the positioning assemblies and the fine adjustment assemblies for limiting the box in the transverse direction, the fine adjustment assemblies arranged close to the two ends of the box, and the fine adjustment assemblies capable of fine adjustment of the box in the transverse direction.

2. The box positioning fine adjustment tooling of claim 1, wherein: The positioning assembly comprises an adjusting seat, an adjusting bolt and a positioning block fixed with the adjusting bolt, the adjusting bolt is in threaded connection with the adjusting seat, and the positioning block is in abutment with the transverse side of the box.

3. The box positioning fine adjustment tooling of claim 1, wherein: The fine adjustment assembly comprises a fine adjustment reference block and an adjusting screw in threaded connection with the fine adjustment reference block, and the adjusting screw is provided with a universal joint head towards one end of the box.

4. The box positioning fine adjustment tooling of claim 1, wherein: The linear guide comprises an inner guide rail and an outer guide rail, the outer guide rail is located outside the box and is normally fixed with the bed body, and the theodolite is fixed on the outer guide rail.

5. The box positioning fine adjustment tooling of claim 4, wherein: The bottom of the inner guide rail is provided with a plurality of rollers.

6. The box positioning fine adjustment tooling of claim 4, wherein: A lifting platform is installed on the surface of the bed body at each end of the box, and the lifting platform is suitable for lifting the inner guide rail.

7. The box positioning fine adjustment tooling of claim 2, wherein: A pull rod is installed on the top of the adjusting seat, and the two ends of a chain are wound around the top of the box and connected with two pull rods of the same cross section respectively.

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