Boring and milling device

Abstract

The utility model discloses a boring and milling device. The boring and milling device comprises a machine tool workbench, a heightening support, a V-shaped cushion block and a chain, a plurality of parallel T-shaped grooves are formed in a machine tool workbench, a plurality of block-up supports are connected with the T-shaped grooves in a sliding mode, and V-shaped cushion blocks are arranged at the tops of the block-up supports and used for supporting a barrel workpiece to be machined. The chain stretches across the outer side of the barrel workpiece, and the two ends of the chain are detachably connected with the two sides of the heightening support correspondingly, so that the barrel workpiece is bound and fixed to a machine tool workbench. The clamping device has the advantages of being compact in structure, high in clamping stability, even in stress and the like, and overcomes the limitation that in the prior art, due to the fact that clamping equipment is complex in structure, interference is generated between the clamping equipment and a cylinder workpiece, and feeding is inconvenient. And meanwhile, the phenomena of cylinder deformation and ellipse generation caused by non-uniform stress on the periphery of the cylinder workpiece are avoided, and the reliability of boring and milling the cylinder main part of the gas insulated metal totally-enclosed switchgear is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of machining, in particular to a boring and milling device suitable for cylindrical workpieces of gas-insulated metal-enclosed switchgear. Background Art

[0002] The main body of the cylinder of the gas-insulated metal-enclosed switchgear is of a three-phase common box structure. To ensure the strength of the parts, the structure often adopts an integral welded forming design, especially highlighting the characteristics of multiple inlets and outlets and multiple angles. At this time, the advantages of horizontal 4-axis boring and milling equipment in processing such parts are prominent. At present, most clamping methods use V-shaped blocks to pad and support the parts, and then press the parts by means of a connecting pressure plate. This method requires long screws and pressure plates, which are prone to interference and inconvenient tool feeding during the processing. In addition, the pressure plate directly presses on the surface of the workpiece, basically presenting point contact, with uneven stress, which is easy to cause part deformation and oval shape. Summary of the Utility Model

[0003] The technical problem to be solved by the utility model is to provide a boring and milling device with a compact structure, high clamping stability and uniform stress in view of the above deficiencies of the prior art.

[0004] To solve the above technical problems, the technical solution adopted by the utility model is as follows:

[0005] A boring and milling device, comprising: a machine tool workbench, a lifting support, a V-shaped cushion block and a chain; a plurality of parallel T-shaped grooves are provided on the machine tool workbench, and a plurality of lifting supports are slidably connected to the T-shaped grooves. A V-shaped cushion block is provided at the top of the lifting support, and the V-shaped cushion block is used to support the cylindrical workpiece to be processed; the chain spans across the outside of the cylindrical workpiece, and both ends of the chain are detachably connected to both sides of the lifting support respectively, so as to realize bundling and fixing the cylindrical workpiece on the machine tool workbench.

[0006] As a further improvement of the utility model, the first threaded holes and the second threaded holes are evenly distributed around the V-shaped cushion block, and adjusting screws are provided in both the first threaded holes and the second threaded holes; when the adjusting screws are screwed, the position of the cylindrical workpiece on the V-shaped cushion block can be adjusted.

[0007] As a further improvement of the utility model, third threaded holes are symmetrically provided on both sides of the lifting support, bolts are respectively provided at both ends of the chain, and after the bolts are screwed into the preset positions of the third threaded holes, the bolts are locked by nuts, so as to realize bundling and fixing the cylindrical workpiece on the machine tool workbench.

[0008] As a further improvement of the present utility model, a base is provided at the bottom of the elevation support, a straight groove matching the T-shaped groove is provided at the bottom of the base, a T-shaped block is provided in the T-shaped groove, and the T-shaped block penetrates and slides in the straight groove and the T-shaped groove to realize the connection between the elevation support and the machine tool workbench.

[0009] As a further improvement of the present utility model, the width of the narrow groove of the T-shaped groove is L1, the width of the straight groove is L2, and the difference between L2 and L1 is less than 0.05 mm.

[0010] As a further improvement of the present utility model, the cylindrical workpiece includes integrally formed first support outer circle, second support outer circle and third support outer circle, and elevation supports, V-shaped pads and chains are provided on the first support outer circle, second support outer circle and third support outer circle.

[0011] Compared with the prior art, the advantages of the present utility model are as follows:

[0012] The boring and milling device of the present utility model is provided with multiple parallel T-shaped grooves on the machine tool workbench, and a plurality of elevation supports with V-shaped pads at the top are slidably connected with the T-shaped grooves. The cylindrical workpiece to be machined is supported by the V-shaped pads. By adjusting the position of the elevation supports in the T-shaped grooves, the clamping requirements of cylindrical workpieces with different lengths are well met, and it is flexible and variable. At the same time, the chain is also spanned outside the cylindrical workpiece, and the two ends of the chain are respectively detachably connected to both sides of the elevation support. The connection between the chain and the elevation support can be flexibly adjusted according to the diameter of the cylindrical workpiece, so that the cylindrical workpiece is bundled and fixed on the machine tool workbench, and no additional pressing plate needs to be set, so no interference will occur, and each link of the chain can rotate relative to each other, and the purpose of multi-point contact can be achieved, preventing the cylindrical part from being elliptical due to single-point contact. The present utility model has the characteristics of compact structure, high clamping stability and uniform force, etc., and improves the reliability of boring and milling processing of the main body of the cylinder of the gas-insulated metal-enclosed switchgear. Brief Description of the Drawings

[0013] Figure 1 It is a schematic three-dimensional structural principle diagram of the boring and milling device in a specific embodiment of the present utility model;

[0014] Figure 2 It is a schematic top view structural principle diagram of the boring and milling device in a specific embodiment of the present utility model;

[0015] Figure 3 is Figure 2 The schematic structural principle diagram in the A-A direction in

[0016] Figure 4 is Figure 3 The schematic structural principle diagram at B in

[0017] Legend: 1. Lifting support; 2. V-shaped pad; 3. Nut; 4. Adjusting screw; 5. T-shaped block; 6. Bolt; 7. Chain; 8. T-shaped groove; 9. Base; 10. Cylindrical workpiece; 101. First supporting outer circle; 102. Second supporting outer circle; 103. Third supporting outer circle; 11. Straight groove; 12. First threaded hole; 13. Second threaded hole; 14. Third threaded hole; 100. Machine tool workbench. Detailed implementation

[0018] The present invention will be further described below in conjunction with the accompanying drawings of the specification and specific preferred embodiments, but the protection scope of the present invention is not limited thereby.

[0019] In the description of the present invention, it should be understood that the terms "side", "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0020] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, "a plurality" means two or more unless otherwise specifically defined.

[0021] Embodiment

[0022] As Figures 1 to 4 shown, the boring and milling device of the present invention includes: a machine tool workbench 100, a lifting support 1, a V-shaped pad 2, and a chain 7. A plurality of parallel T-shaped grooves 8 are provided on the machine tool workbench 100. A plurality of lifting supports 1 are slidably arranged in the T-shaped grooves 8. A V-shaped pad 2 is provided on the top of the lifting support 1. The V-shaped pad 2 is used to support the cylindrical workpiece 10 to be processed. The chain 7 straddles the outside of the cylindrical workpiece 10, and both ends of the chain 7 are detachably connected to both sides of the lifting support 1 respectively, so as to realize the bundling and fixing of the cylindrical workpiece 10 on the machine tool workbench 100.

[0023] In this embodiment, multiple parallel T-shaped grooves 8 are provided on the machine tool workbench 100, and a plurality of elevation supports 1 with V-shaped pads 2 at the top are slidably arranged in the T-shaped grooves 8. The V-shaped pads 2 are used to support the cylindrical workpiece 10 to be machined. By adjusting the position of the elevation supports 1 in the T-shaped grooves 8, the clamping requirements of cylindrical workpieces of different lengths are well met, and it is flexible and variable. At the same time, a chain 7 is also spanned outside the cylindrical workpiece 10, and both ends of the chain 7 are detachably connected to both sides of the elevation support 1. The connection between the chain 7 and the elevation support 1 can be flexibly adjusted according to the diameter of the cylindrical workpiece 10, realizing the bundling and fixing of the cylindrical workpiece 10 on the machine tool workbench 100. There is no need to additionally set up a pressing plate, so there will be no interference. Moreover, each link of the chain 7 can rotate relative to each other, achieving the purpose of multi-point contact and preventing the cylindrical part from becoming elliptical due to single-point contact. The utility model has the characteristics of compact structure, high clamping stability and uniform force, improving the reliability of boring and milling machining of the main cylindrical parts of gas-insulated metal-enclosed switchgear.

[0024] As Figure 1 and Figure 3 shown, the first threaded holes 12 and the second threaded holes 13 are evenly distributed around the periphery of the V-shaped pad 2, and adjusting screws 4 are provided in both the first threaded holes 12 and the second threaded holes 13. When the adjusting screws 4 are screwed, the position of the cylindrical workpiece 10 on the V-shaped pad 2 can be adjusted.

[0025] Specifically, through first threaded holes 12 are symmetrically provided on both sides of the V-shaped pad 2, and a through second threaded hole 13 is provided at the center of the bottom of the V-shaped pad 2. The center lines of the three threaded holes face the center of the circle tangent to the three sides of the V-shaped pad 2. The adjusting screws 4 are installed in the threaded holes and can be freely adjusted and moved to eliminate the manufacturing error of the fixture, better adjust the horizontal and front-back positions of the cylindrical workpiece 10, and play a key role in the final fine positioning.

[0026] As Figure 3 shown, third threaded holes 14 are symmetrically provided on both sides of the elevation support 1, and bolts 6 are provided at both ends of the chain 7. After the bolts 6 are screwed into the preset positions of the third threaded holes 14, the bolts 6 are locked by nuts 3 to realize the bundling and fixing of the cylindrical workpiece 10 on the machine tool workbench 100. In this embodiment, the chain 7 with bolts 6 is formed by connecting multiple link blocks and then welding bolts 6 at both ends, which can avoid machining interference. Moreover, each link of the chain 7 can rotate relative to each other, achieving the purpose of multi-point contact and preventing the cylindrical workpiece 10 from becoming elliptical.

[0027] As Figure 3 and Figure 4As shown in the figure, a base 9 is provided at the bottom of the elevation support 1, and a straight groove 11 matching the T-shaped groove 8 is provided at the bottom of the base 9. A T-shaped block 5 is provided in the T-shaped groove 8, and the T-shaped block 5 slides through the straight groove 11 and the T-shaped groove 8 to realize the connection between the elevation support 1 and the machine tool workbench 100. The function of the T-shaped block 5 is to ensure that multiple elevation supports 1 do not deviate too much in the same straight line direction, providing a prerequisite for the subsequent adjustment screw 4 to adjust the position of the cylindrical workpiece 10.

[0028] Further, the width of the narrow groove of the T-shaped groove 8 is L1, and the width of the straight groove 11 is L2. The difference between L2 and L1 is less than 0.05 mm to ensure that multiple elevation supports 1 do not deviate too much on the same straight line, playing a role in rough positioning.

[0029] As Figure 2 shown, the cylindrical workpiece 10 includes a first support outer circle 101, a second support outer circle 102, and a third support outer circle 103 that are integrally formed. Elevation supports 1, V-shaped pads 2, and chains 7 are provided on the first support outer circle 101, the second support outer circle 102, and the third support outer circle 103 to realize stable support of the cylindrical workpiece 10, and all machining sections of the cylindrical workpiece 10 are exposed, facilitating corresponding boring and milling machining of the cylindrical workpiece 10.

[0030] In this embodiment, the assembly process of the boring and milling device includes the following steps:

[0031] Step S1: Place three elevation supports 1 welded with V-shaped pads 2 side by side on the machine tool workbench 100, and align the straight groove 11 at the bottom of the elevation support 1 with the T-shaped groove 8 on the machine tool workbench 100.

[0032] Step S2: Place the T-shaped block 5 into the T-shaped groove 8 to ensure that the straight groove 11 and the T-shaped groove 8 are not deviated too much in the same straight line.

[0033] Step S3: Fix the elevation support 1 on the machine tool workbench 100 using fasteners.

[0034] Step S4: Place the cylindrical workpiece 10 in the V-shaped pads 2 to ensure that the three V-shaped pads 2 respectively support the first support outer circle 101, the second support outer circle 102, and the third support outer circle 103 of the cylindrical workpiece 10.

[0035] Step S5: Pass the adjustment screws 4 through the first threaded holes 12 and the second threaded holes 13 provided on the V-shaped pads 2 and contact the surface of the cylindrical workpiece 10; control the front, back, left, and right positions of the entire cylindrical workpiece 10 by adjusting the lengths of the adjustment screws 4.

[0036] Step S6: After the cylindrical workpiece 10 is leveled, place the three chains 7 welded with bolts 6 on the first supporting outer circle 101, the second supporting outer circle 102, and the third supporting outer circle 103 of the cylindrical workpiece 10 respectively, and then pass the bolts 6 through the third threaded holes 14 provided on both sides of the heightening support 1.

[0037] Step S7: Screw the nut 3 onto the bolt 6. By screwing the nut 3, the chain 7 can be tightened to achieve the effect of pressing the cylindrical workpiece 10.

[0038] The above are only the preferred embodiments of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions falling within the idea of the present invention belong to the protection scope of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and retouches should also be regarded as the protection scope of the present invention.

Claims

1. A boring and milling device, characterized in that, Including: A machine tool workbench (100), a heightening support (1), a V-shaped cushion block (2), and a chain (7); multiple parallel T-shaped grooves (8) are provided on the machine tool workbench (100), and multiple heightening supports (1) are slidably connected to the T-shaped grooves (8). A V-shaped cushion block (2) is provided on the top of the heightening support (1), and the V-shaped cushion block (2) is used to support the cylindrical workpiece (10) to be machined; the chain (7) spans across the outside of the cylindrical workpiece (10), and both ends of the chain (7) are detachably connected to both sides of the heightening support (1) respectively, so as to realize bundling and fixing the cylindrical workpiece (10) on the machine tool workbench (100).

2. The boring and milling device according to claim 1, characterized in that First threaded holes (12) and second threaded holes (13) are evenly distributed around the V-shaped cushion block (2), and adjusting screws (4) are provided in both the first threaded holes (12) and the second threaded holes (13); when the adjusting screws (4) are screwed, the position of the cylindrical workpiece (10) on the V-shaped cushion block (2) can be adjusted.

3. The boring and milling device according to claim 2, wherein, Third threaded holes (14) are symmetrically provided on both sides of the heightening support (1), bolts (6) are provided at both ends of the chain (7), and after the bolts (6) are screwed into the preset positions of the third threaded holes (14), the bolts (6) are locked by nuts (3), so as to realize bundling and fixing the cylindrical workpiece (10) on the machine tool workbench (100).

4. The boring and milling device according to claim 3, characterized in that, A base (9) is provided at the bottom of the heightening support (1), a straight groove (11) matching the T-shaped groove (8) is provided at the bottom of the base (9), a T-shaped block (5) is provided in the T-shaped groove (8), and the T-shaped block (5) slidably penetrates through the straight groove (11) and the T-shaped groove (8), so as to realize the connection between the heightening support (1) and the machine tool workbench (100).

5. The boring and milling device according to claim 4, characterized in that, The narrow groove width of the T-shaped groove (8) is L1, the width of the straight groove (11) is L2, and the difference between L2 and L1 is less than 0.05 mm.

6. The boring and milling device according to any one of claims 1 to 5, characterized in that, The cylindrical workpiece (10) includes an integrally formed first support outer circle (101), a second support outer circle (102), and a third support outer circle (103), and heightening supports (1), V-shaped cushion blocks (2), and chains (7) are provided on the first support outer circle (101), the second support outer circle (102), and the third support outer circle (103).

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