Back plate square box tool for horizontal machining center

Abstract

The utility model discloses a back plate square box tool for a horizontal machining center in the technical field of horizontal machining centers, which comprises a working table, a bottom plate is mounted on the surface of the working table through bolts, a plurality of counterbores arranged in a rectangular manner are formed in the surface of the bottom plate, the bottom plate and the working table are mounted and fixed through the counterbores through bolts, and the bottom plate and the working table are fixed through bolts. Four back plates are installed on the upper surface of the bottom plate and placed in a rectangular column shape, and limiting pieces used for preliminarily fixing the back plates are installed between the bottom plate and the back plates. The tool is simple in manufacturing process, the manufacturing process of all the plates is only smooth surfaces and hole making, positioning pin holes are prefabricated in all welding parts, during welding, pin shafts are firstly used for preliminary positioning, and then the welding parts are welded. And then the perpendicularity is measured through infrared rays, preliminary fixing is carried out after spot welding within the mm is corrected, all the plates are integrally welded and reinforced after preliminary positioning, the manufacturing cost is low, and the period is short.

Description

Technical Field

[0001] This utility model relates to the field of horizontal machining centers, specifically a backplate square box tooling for horizontal machining centers. Background Technology

[0002] A horizontal machining center is a machining center in which the spindle axis is set parallel to the worktable 1. It is mainly suitable for machining box-shaped parts. In actual production, horizontal machining centers generally require a special square box as a carrier for clamping parts. Among them, the back plate 4 square box used for vertical clamping of parts is more commonly used. The square box has the characteristics of large external dimensions and high rigidity requirements. Therefore, the square box is generally made by integral casting, which has high casting cost. The one-time investment of custom-made special square boxes is large, and the casting cycle is long, which will affect the on-time delivery of products.

[0003] The existing equipment is relatively complicated to operate when producing square box tooling, and it is not convenient to pre-limit and fix the back plate. This can easily cause the back plate to shift or shake, resulting in unstable or inaccurate welding of the back plate, and reducing the rigidity and strength of the square box. This affects the efficiency and practicality of square box tooling production. Therefore, it is necessary to design a back plate square box tooling for horizontal machining centers to solve the above problems. Utility Model Content

[0004] The purpose of this utility model is to provide a backplate square box tooling for horizontal machining centers to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a backplate square box fixture for a horizontal machining center, comprising a worktable, a base plate mounted on the surface of the worktable by bolts, a plurality of countersunk holes arranged in a rectangular pattern on the surface of the base plate, the countersunk holes being used to fix the base plate to the worktable by bolts, four backplates mounted on the upper surface of the base plate, the four backplates being arranged in a rectangular column, and a limiting member for initially fixing the backplates being installed between the base plate and the backplates.

[0006] Preferably, the limiting component includes two first positioning holes respectively opened at the four corners of the top of the base plate, two second positioning holes opened at the bottom of the back plate, and a limiting ring installed on the upper surface of the base plate by multiple fixing posts. The first positioning holes and the second positioning holes are spliced ​​and fixed by pins.

[0007] Preferably, the back plate has two threaded holes on one side and near the top, a row of evenly arranged pin holes on one side and in the middle, four rows of evenly arranged through holes on one side and near both sides, and a stepped surface on the other side of the back plate.

[0008] Preferably, a lifting hole is provided on one side of the back plate near the top, and a lifting ring is screwed into the inner side of the lifting hole.

[0009] Preferably, a cover plate is bolted to the top of the back plate.

[0010] Preferably, a plurality of uniformly arranged reinforcing ribs are welded between the back plate and the bottom plate, and between the two back plates.

[0011] Preferably, welding bevels are provided on both sides of the back plate.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. The base plate can be the same size as the machine tool worktable. This fixture is welded from 45# steel plate. After the main body is welded, each working surface is precision machined to ensure both the rigidity and accuracy of the square box. The manufacturing process of this fixture is simple. The manufacturing process of each plate only involves smoothing and drilling. Each welded part has pre-drilled positioning pin holes. During welding, the pin shaft is used for preliminary positioning first, and then the perpendicularity is measured with infrared light. After correction within 2mm, spot welding is performed for preliminary fixation. After all plates are initially positioned, overall welding is performed for reinforcement. The manufacturing cost is low and the cycle is short. The necessary parts for the fixture can be appropriately stocked as a means of rapid response manufacturing of square boxes.

[0014] 2. The limiting ring is rectangular with an L-shaped cross-section. It is pre-fixed to the base plate by inserting it with a fixing post. The fixing post and the limiting ring are integrally fixed. Then, the back plate is positioned and fixed by using a pin through the first and second positioning holes. The limiting ring can shield the back plate. After the back plate is fixed, it can be spot welded. The limiting ring can be removed as needed or after subsequent processing to prevent the back plate from shifting or misaligning during welding, thus improving the stability and accuracy of the back plate splicing and limiting fixation. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0016] Figure 2 This is a left-side sectional perspective view of the overall structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the internal structure of the main body of the overall structure of this utility model;

[0018] Figure 4 This is a structural diagram of the workbench, base plate, countersunk hole, first positioning hole, fixing column, and limiting ring in the overall structure of this utility model.

[0019] Figure 5 This is a structural diagram of the back plate, pin hole, through hole, stepped surface, lifting hole, and welding bevel in the overall structure of this utility model;

[0020] Figure 6 This is a sectional perspective view of the back plate, second positioning hole, threaded hole, pin hole, and lifting hole in the overall structure of this utility model.

[0021] In the diagram: 1. Workbench; 2. Base plate; 3. Countersunk hole; 4. Back plate; 5. First positioning hole; 6. Second positioning hole; 7. Fixing post; 8. Limiting ring; 9. Threaded hole; 10. Pin hole; 11. Through hole; 12. Stepped surface; 13. Lifting hole; 14. Lifting ring; 15. Cover plate; 16. Reinforcing rib; 17. Welding bevel. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Example 1

[0024] Please refer to Figure 1-6 As shown, this utility model provides a backplate square box tooling for a horizontal machining center, including a worktable 1. A base plate 2 is bolted to the surface of the worktable 1. The surface of the base plate 2 has multiple rectangular countersunk holes 3. The countersunk holes 3 are bolted to fix the base plate 2 to the worktable 1. Four back plates 4 are installed on the upper surface of the base plate 2. The four back plates 4 are arranged in a rectangular column. A limiting component for initially fixing the back plates 4 is installed between the base plate 2 and the back plates 4. A cover plate 15 is bolted to the top of the back plates 4. Multiple reinforcing ribs 16 are welded evenly between the back plates 4 and the base plate 2 and between two back plates 4.

[0025] It should be added that the base plate 2 can be the same as the machine tool worktable 1 in terms of external dimensions. This fixture is welded from 45# steel plate. After the main body is welded, each working surface is precision machined to ensure both the rigidity and accuracy of the square box. The manufacturing process of this fixture is simple. The manufacturing process of each plate is only to smooth the surface and make holes. Each welded part is pre-made with positioning pin holes 10. During welding, the pin shaft is used for preliminary positioning first, and then the perpendicularity is measured with infrared light. After correction within 2mm, spot welding is performed for preliminary fixation. After all plates are initially positioned, overall welding is performed for reinforcement. The manufacturing cost is low and the cycle is short. The necessary parts on the fixture can be appropriately stocked as a means of rapid response to manufacture square boxes.

[0026] Furthermore, the cover plate 15 is mainly made of thin metal plate and is installed and fixed to the four back plates 4 by multiple bolts. The cover plate 15 can effectively prevent metal chips from entering the box. Multiple reinforcing ribs 16 are used to increase the welding length between the bottom plate 2 and the back plate 4, increase the welding length between adjacent back plates 4, and enhance the rigidity of the box welding.

[0027] Specifically, the limiting components include two first positioning holes 5 respectively opened at the four corners of the top of the base plate 2, two second positioning holes 6 opened at the bottom of the back plate 4, and a limiting ring 8 installed on the upper surface of the base plate 2 by multiple fixing posts 7. The first positioning holes 5 and the second positioning holes 6 are spliced ​​and fixed by pins.

[0028] The limiting ring 8 is rectangular with an L-shaped cross-section. It is pre-fixed to the base plate 2 by inserting it into the fixing post 7. The fixing post 7 and the limiting ring 8 are integrally fixed. Then, a pin is used to position and fix the back plate 4 through the first positioning hole 5 and the second positioning hole 6. The limiting ring 8 can shield the back plate 4. After the back plate 4 is fixed in position, it can be spot-welded. The limiting ring 8 can be disassembled as needed or after subsequent processing to prevent the back plate 4 from shifting or misaligning during welding, thus improving the stability and accuracy of the back plate 4 splicing and limiting fixation.

[0029] More specifically, the back plate 4 has two threaded holes 9 on one side and near the top, a row of evenly arranged pin holes 10 on one side and in the middle, four rows of evenly arranged through holes 11 on one side and near both sides, a stepped surface 12 on the other side of the back plate 4, a lifting hole 13 on one side and near the top of the back plate 4, a lifting ring 14 screwed into the inside of the lifting hole 13, and welding bevels 17 on both sides of the back plate 4.

[0030] Furthermore, the back plate 4 has a welding bevel 17 for secure welding and to improve the overall strength of the tooling. On the other side of the back plate 4, there is a pair of M6 threaded holes 9 for mounting the back plate 4. The lifting eye 14 passes through the lifting hole 13 for screw fixing and is used to install the lifting eye 14 bolt, which facilitates the lifting of the box. The back plate 4 has a row of multiple D12 pin holes 10 for positioning the parts or tooling to be processed. The back plate 4 has four rows of M16 through holes 11 for positioning the parts or tooling to be processed. The back plate 4 has a 2mm stepped surface 12 for finishing after welding to ensure the form and position tolerances of each working surface. It should be noted that the D12 pin holes 10, the M16 through holes 11 threads, and the 2mm stepped surface 12 are all processed after welding to eliminate the dimensional effects caused by welding deformation.

[0031] Working principle: First, four back plates 4 are placed inside the limiting ring 8. Then, the back plates 4 and the base plate 2 are pre-assembled and fixed by inserting pins into the first positioning hole 5 and the second positioning hole 6. Then, multiple reinforcing ribs 16 are welded and fixed to the base plate 2 and the back plates 4 respectively. Then, the reinforcing ribs 16 are welded between the two back plates 4. Then, the cover plate 15 is screwed and fixed to the top of the back plate 4 by bolts. Then, the base plate 2 is screwed and fixed to the worktable 1 through the countersunk hole 3 by using hexagonal screws. At the same time, the limiting ring 8 is inserted into the surface of the base plate 2 through the fixing post 7. Then, welding and subsequent high-precision processing are continued.

[0032] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0033] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A backplane square box tooling for horizontal machining center, comprising a worktable (1), characterized in that: The workbench (1) surface is provided with a bottom plate (2) installed by bolts, the bottom plate (2) is provided with a plurality of countersunk holes (3) arranged in a rectangle on the surface, the countersunk holes (3) are installed and fixed to the bottom plate (2) and the workbench (1) by bolts, four back plates (4) are installed on the upper surface of the bottom plate (2), the four back plates (4) are arranged in a rectangular column, and a limiting piece for preliminarily fixing the back plate (4) is installed between the bottom plate (2) and the back plate (4).

2. The backplane square box tooling for a horizontal machining center of claim 1, wherein: The limiting piece comprises two first positioning holes (5) respectively arranged at the four corners of the top of the bottom plate (2), two second positioning holes (6) are arranged at the bottom of the back plate (4), a limiting ring (8) is installed on the upper surface of the bottom plate (2) through a plurality of fixing columns (7), and the first positioning hole (5) and the second positioning hole (6) are fixed by a pin shaft.

3. The backplane square box tooling for a horizontal machining center of claim 2, wherein: Two threaded holes (9) are arranged on one side of the back plate (4) and close to the top, a plurality of pin holes (10) are arranged on one side of the back plate (4) and in the middle, four rows of through holes (11) are arranged on one side of the back plate (4) and close to the two sides, and a stepped surface (12) is arranged on the other side of the back plate (4).

4. The backplane square box tooling for a horizontal machining center of claim 2, wherein: A lifting hole (13) is arranged on one side of the back plate (4) and close to the top, and a lifting ring (14) is screwed in the lifting hole (13).

5. The backplane square box tooling for a horizontal machining center of claim 2, wherein: A cover plate (15) is installed on the top of the back plate (4) by bolts.

6. The backplane square box tooling for a horizontal machining center of claim 2, wherein: A plurality of reinforcing ribs (16) are respectively welded between the back plate (4) and the bottom plate (2) and between the two back plates (4).

7. The backplane square box tooling for a horizontal machining center of claim 2, wherein: Welding bevels (17) are respectively arranged on the two sides of the back plate (4).

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