A two-angle strut joint hole combination machining tool and method

Abstract

The application provides a two-angle strut joint hole combined machining tool and method, which comprises a main strut 1, a secondary strut 2, a cushion block 3, a base 4, an outer circle positioning support plate 5, an inner circle positioning cylinder 6, a support bolt 7, a main strut V-shaped seat 8, a main clamping block 9, a secondary strut V-shaped seat 10, a secondary clamping block 11, a nut 12, a straight screw 13 and a hexagonal screw 14. The main strut 1 and the secondary strut 2 are combined together and positioned and fixed through the V-shaped seat, the positioning component and the fixing component.

Description

Technical Field

[0001] This invention relates to the design of a tooling, and more particularly to a tooling and method for machining a combination of two angled strut joint holes. Background Technology

[0002] Existing technologies often involve boring of the assemblies of strut joint holes at two-degree angles, see [link to relevant documentation]. Figure 3 , Figure 4 , Figure 5 This assembly combines a main strut connector and a secondary strut connector, simultaneously machining the precision holes 1-1 and 2-1 of both the main strut connector and the secondary strut connector. In existing technology, the precision holes 1-1 and 2-1 of the main strut connector are machined separately. After assembling the two struts, the concentricity of the precision holes 1-1 and 2-1, as well as the angular tolerance requirements between the two struts, cannot be guaranteed, thus failing to meet assembly requirements. Alternatively, existing technology may use a combination fixture to simultaneously machine the precision holes 1-1 and 2-1, but this cannot guarantee the concentricity of the precision hole 1-1 with the outer cylindrical surface 1-5 of the main strut connector, nor the concentricity of the precision hole 2-1 with the outer cylindrical surface 2-4 of the secondary strut connector, also failing to meet assembly requirements. Summary of the Invention

[0003] The purpose of this invention is to provide a tooling and method for machining the combined holes of two angled strut joints, in order to solve the problems existing in the prior art.

[0004] The technical solution of this invention:

[0005] In a first aspect, this application provides a machining fixture for assembling two angled strut joint holes. The fixture includes a main strut 1, a secondary strut 2, a pad 3, a base 4, an outer circular positioning support plate 5, an inner circular positioning cylinder 6, a support bolt 7, a main strut V-shaped seat 8, a main clamping block 9, a secondary strut V-shaped seat 10, a secondary clamping block 11, a nut 12, a slotted screw 13, and a hexagonal screw 14. The two joints of the main strut 1 and the secondary strut 2 are combined together and positioned and fixed by the V-shaped seat, positioning components, and fixing components; wherein:

[0006] The main support rod 1 is composed of a main support rod connector hole 1-1, an outer end face 1-2 of the main support rod connector hole, an inner end face 1-3 of the main support rod connector hole, a main support rod body 1-4, and an outer cylindrical surface 1-5 of the main support rod connector hole. The main support rod 1 has a main support rod connector hole 1-1 that needs to be machined.

[0007] The auxiliary support rod 2 is composed of an auxiliary support rod connector hole 2-1, an outer end face 2-2 of the auxiliary support rod connector hole, a small outer cylindrical surface 2-3 of the auxiliary support rod connector hole, a large outer cylindrical surface 2-4 of the auxiliary support rod connector hole, an inner end face 2-5 of the auxiliary support rod connector hole, a cylindrical surface 2-6 of the inner end face of the auxiliary support rod connector hole, and an auxiliary support rod body 2-7. The auxiliary support rod 2 has an auxiliary support rod connector hole 2-1 that needs to be machined.

[0008] Specifically, the positioning components include an outer circular positioning support plate 5, an inner circular positioning cylinder 6, a main support rod V-shaped seat 8, and a secondary support rod V-shaped seat 10. The outer circular positioning support plate 5 is disposed on the end face of the main and secondary support rod joint holes and the outer cylindrical surface. The inner circular positioning cylinder 6 is disposed on the inner cylindrical surface of the secondary support rod joint hole and the base boss. The main support rod V-shaped seat 8 and the secondary support rod V-shaped seat 10 are disposed on the end face of the base. The fixing components include a pad 3, a base 4, a main clamping block 9, and a secondary clamping block 11. The pad 3 is disposed on the machine tool table. The base 4 is disposed on the end face of the pad 3. The main clamping block 9 and the secondary clamping block 11 are disposed on the main support rod V-shaped seat 8 and the secondary support rod V-shaped seat 10.

[0009] Specifically, the outer circular positioning support plate 5 is fixed to the outer cylindrical surface and upper end face of the main and auxiliary support rod joint combination hole by support bolts 7 and nuts 12; the inner circular positioning cylinder 6 is engaged with the boss 4-2 of the base 4 through the inner hole 6-1, and the outer cylindrical surface 6-2 and the cylindrical end face 6-3 are engaged with the inner end face cylindrical surface 2-6 of the auxiliary support rod joint hole and fixed on the end face 4-1 of the base 4.

[0010] Specifically, the main support rod V-shaped seat 8 and the auxiliary support rod V-shaped seat 10 are both fixed to the end face 4-1 of the base 4 by flathead screws 13.

[0011] Specifically, the main clamping block 9 fixes the main support rod body 1-4 into the V-groove 8-1 of the main support rod V-seat 8 using a flathead screw 13.

[0012] Specifically, the auxiliary clamping block 11 fixes the auxiliary support rod body 2-7 in the V-groove 10-1 of the auxiliary support rod V-shaped seat 10 by a flathead screw 13.

[0013] Specifically, the base 4 is fixed to the end face of the pad 3 by hexagonal screws 14.

[0014] Secondly, this application provides a method for assembling and machining joint holes for two-angle struts, the method comprising:

[0015] Step 1: Simultaneously rough-machine the main and auxiliary strut joint holes after assembling the main and auxiliary strut joints;

[0016] Step 2: Simultaneously finish machine the main and auxiliary strut joints, then machine the main strut joint hole 1-1 and the auxiliary strut joint hole 2-1.

[0017] Specifically, step 1 is as follows:

[0018] After the main and auxiliary strut joints are assembled and clamped, the tool-setting cylindrical surface in the outer circle positioning support plate is aligned to achieve rough machining of the main strut joint hole and the auxiliary strut joint hole.

[0019] Specifically, step 2 is as follows:

[0020] Remove rough machining burrs, align the tool setting cylindrical surface in the outer circle positioning support plate, and achieve fine machining of the main support rod joint hole and the auxiliary support rod joint hole.

[0021] The beneficial effects of this invention are as follows: Compared with the prior art, the tooling structure of this technical solution is simple and practical, and it can quickly position, clamp and fix the parts. The positioning reference is uniform and fixed, which can ensure the concentricity of the precision hole of the main support rod joint and the precision hole of the auxiliary support rod joint, as well as the angular tolerance requirements of the two support rods. It can also ensure the concentricity of the precision hole of the main support rod joint and the outer cylindrical surface of the main support rod joint, as well as the concentricity of the precision hole of the auxiliary support rod joint and the outer cylindrical surface of the auxiliary support rod joint. Moreover, the parts are not subjected to large and uniform forces in the cutting direction, and the parts are not deformed after processing, thus meeting the assembly requirements of the parts. Attached Figure Description

[0022] Figure 1 A schematic diagram of a machining fixture for a two-angle strut joint hole combination provided by the present invention;

[0023] Figure 2 A cross-sectional view of a machining fixture for a combination of two angled strut joint holes provided by the present invention;

[0024] Figure 3 This is a schematic diagram of a strut assembly with two angles in the prior art.

[0025] Figure 4 This is a cross-sectional view of the main strut in the prior art;

[0026] Figure 5 This is a cross-sectional view of a secondary strut in the prior art;

[0027] Figure 6 A schematic diagram of a pad block provided by the present invention;

[0028] Figure 7 A schematic diagram of a base provided by the present invention;

[0029] Figure 8 A schematic diagram of an outer circular positioning support plate provided by the present invention;

[0030] Figure 9 A schematic diagram of an inner circular positioning cylinder provided by the present invention;

[0031] Figure 10 A schematic diagram of a support bolt provided by the present invention;

[0032] Figure 11 A schematic diagram of a V-shaped seat for a main strut provided by the present invention;

[0033] Figure 12 A schematic diagram of a main clamping block provided by the present invention;

[0034] Figure 13 A schematic diagram of a V-shaped seat for a secondary strut provided by the present invention;

[0035] Figure 14 A schematic diagram of a secondary clamping block provided by the present invention;

[0036] Figure 15 A schematic diagram of a nut provided by the present invention;

[0037] Figure 16 A schematic diagram of a slotted screw provided by the present invention;

[0038] Figure 17 A schematic diagram of a hexagonal screw provided for this invention;

[0039] In the diagram: 1 is the main support rod, 1-1 is the main support rod connector hole, 1-2 is the outer end face of the main support rod connector hole, 1-3 is the inner end face of the main support rod connector hole, 1-4 is the main support rod body, 1-5 is the outer cylindrical surface of the main support rod connector hole, 2 is the auxiliary support rod, 2-1 is the auxiliary support rod connector hole, 2-2 is the outer end face of the auxiliary support rod connector hole, 2-3 is the small outer cylindrical surface of the auxiliary support rod connector hole, 2-4 is the large outer cylindrical surface of the auxiliary support rod connector hole, 2-5 is the inner end face of the auxiliary support rod connector hole, 2-6 is the cylindrical surface of the inner end face of the auxiliary support rod connector hole, 3 is the pad, 3-1 is the end face of the pad, 3-2 is the hexagonal threaded hole, 3-3 is the pressure plate groove, 4 is the base, 4-1 is the end face of the base, 4-2 is the boss, 4-3 is the support bolt hole, 4-4 is the slotted screw hole, 4-5 is the hexagonal threaded hole, 5 is the outer cylindrical surface. Positioning support plate, 5-1 positioning cylindrical surface, 5-2 tool setting cylindrical surface, 5-3 cylindrical end cap surface, 5-4 support bolt hole, 6 inner cylindrical positioning cylinder, 6-1 inner hole, 6-2 outer cylindrical surface, 6-3 cylindrical end face, 6-4 cylindrical bottom surface, 6-5 chip removal hole, 7 support bolt, 7-1 lower threaded surface, 7-2 upper threaded surface, 7-3 bolt rod body, 8 main support rod V-shaped seat, 8-1 V-groove, 8-2 screw hole, 9 main clamping block, 9-1 V-groove, 9-2 screw hole, 10 secondary support rod V-shaped seat, 10-1 V-groove, 10-2 screw hole, 11 secondary clamping block, 11-1 V-groove, 11-2 screw hole, 12 nut, 13 slotted screw, 14 hexagonal screw. Detailed Implementation

[0040] The present technical solution will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0041] The purpose of this invention is to provide a tooling and method for machining the combined holes of two angled strut joints, in order to solve the problems existing in the prior art.

[0042] Example 1

[0043] like Figure 1-2 As shown, this application provides a machining fixture for assembling two angled strut joint holes, including a main strut 1, an auxiliary strut 2, a pad block 3, a base 4, an outer circular positioning support plate 5, an inner circular positioning cylinder 6, a support bolt 7, a main strut V-shaped seat 8, a main clamping block 9, an auxiliary strut V-shaped seat 10, an auxiliary clamping block 11, a nut 12, a slotted screw 13, and a hexagonal screw 14. The two joints of the main strut 1 and the auxiliary strut 2 are assembled together and positioned and fixed by the V-shaped seat, the outer circular positioning component, the inner circular positioning component, and the fixing component; wherein:

[0044] The main support rod 1 is composed of a main support rod connector hole 1-1, an outer end face 1-2 of the main support rod connector hole, an inner end face 1-3 of the main support rod connector hole, a main support rod body 1-4, and an outer cylindrical surface 1-5 of the main support rod connector hole. The main support rod 1 has a main support rod connector hole 1-1 that needs to be machined.

[0045] The auxiliary support rod 2 is composed of an auxiliary support rod connector hole 2-1, an outer end face 2-2 of the auxiliary support rod connector hole, a small outer cylindrical surface 2-3 of the auxiliary support rod connector hole, a large outer cylindrical surface 2-4 of the auxiliary support rod connector hole, an inner end face 2-5 of the auxiliary support rod connector hole, a cylindrical surface 2-6 of the inner end face of the auxiliary support rod connector hole, and an auxiliary support rod body 2-7. The auxiliary support rod 2 has an auxiliary support rod connector hole 2-1 that needs to be machined.

[0046] Furthermore, such as Figure 6-17 As shown, the positioning components include an outer circular positioning support plate 5, an inner circular positioning cylinder 6, a main support rod V-shaped seat 8, and a secondary support rod V-shaped seat 10. The outer circular positioning support plate 5 is disposed on the end face of the main and secondary support rod joint holes and the outer cylindrical surface. The inner circular positioning cylinder 6 is disposed on the inner cylindrical surface of the secondary support rod joint hole and the base boss. The main support rod V-shaped seat 8 and the secondary support rod V-shaped seat 10 are disposed on the end face of the base. The fixing components include a pad 3, a base 4, a main clamping block 9, and a secondary clamping block 11. The pad 3 is disposed on the machine tool table. The base 4 is disposed on the end face of the pad 3. The main clamping block 9 and the secondary clamping block 11 are disposed on the main support rod V-shaped seat 8 and the secondary support rod V-shaped seat 10.

[0047] Furthermore, the outer circular positioning support plate 5 is fixed to the outer cylindrical surface and upper end surface of the main and auxiliary strut joint combination hole by support bolts 7 and nuts 12.

[0048] Furthermore, the inner circular positioning cylinder 6 is engaged with the boss 4-2 of the base 4 through the inner hole 6-1, and the outer cylindrical surface 6-2 and the cylindrical end face 6-3 are engaged with the inner end face cylindrical surface 2-6 of the auxiliary support rod connector hole and fixed on the end face 4-1 of the base 4.

[0049] Furthermore, the inner circular positioning cylinder 6 removes machining chips through the chip removal holes 6-5.

[0050] Furthermore, the main support rod V-shaped seat 8 and the auxiliary support rod V-shaped seat 10 are both fixed to the end face 4-1 of the base 4 by flathead screws 13.

[0051] Furthermore, the main clamping block 9 fixes the main support rod body 1-4 in the V-groove 8-1 of the main support rod V-shaped seat 8 by means of a flathead screw 13.

[0052] Furthermore, the auxiliary clamping block 11 fixes the auxiliary support rod body 2-7 in the V-groove 10-1 of the auxiliary support rod V-shaped seat 10 by a flathead screw 13.

[0053] Furthermore, the base 4 is fixed to the end face of the pad 3 by hexagonal screws 14.

[0054] Furthermore, the pad 3 is fixed to the machine tool worktable by a pressure plate.

[0055] Example 2

[0056] This application provides a method for machining a combination of two-angle strut joint holes, including:

[0057] Step 1: Simultaneously rough-machine the main and auxiliary strut joints, then machine the main strut joint hole 1-1 and the auxiliary strut joint hole 2-1.

[0058] Step 2: Simultaneously finish machine the main and auxiliary strut joints, then machine the main strut joint hole 1-1 and the auxiliary strut joint hole 2-1.

[0059] Furthermore, step 1 specifically involves:

[0060] After the main and auxiliary strut joints are fixed and clamped, the tool-setting cylindrical surface 5-2 in the outer circle positioning support plate 5 is aligned to achieve rough machining of the main strut joint hole 1-1 and the auxiliary strut joint hole 2-1.

[0061] Furthermore, step 2 specifically involves:

[0062] Remove rough machining burrs, align the tool setting cylindrical surface 5-2 in the outer circle positioning support plate 5, and achieve fine machining of the main support rod joint hole 1-1 and the auxiliary support rod joint hole 2-1.

[0063] It should be noted that this application provides a method for machining the combined holes of the two-angle strut joints, which utilizes boring to machine the combined holes of the main and auxiliary strut joints.

[0064] In summary, this invention relates to a tooling and method for machining two angled strut joint holes. It includes a main strut, an auxiliary strut, a pad, a base, an outer circular positioning support plate, an inner circular positioning cylinder, support bolts, a V-shaped seat for the main strut, a main clamping block, a V-shaped seat for the auxiliary strut, an auxiliary clamping block, nuts, slotted screws, and hexagonal screws. The two joints of the main strut and auxiliary strut are combined and positioned and fixed by the V-shaped seat, the outer circular positioning component, the inner circular positioning component, and the fixing component. Compared with the prior art, this technical solution has a simple and practical tooling structure, allows for quick positioning, clamping, and fixing, and provides a unified and fixed positioning reference. It ensures the concentricity of the precision holes of the main strut joint and the auxiliary strut joint, as well as the angular tolerance requirements of the two struts. It also ensures the concentricity of the precision holes of the main strut joint and the outer cylindrical surface of the main strut joint, and the concentricity of the precision holes of the auxiliary strut joint and the outer cylindrical surface of the auxiliary strut joint. Furthermore, the parts are subjected to low and uniform stress in the cutting direction, resulting in no deformation after machining and meeting the assembly requirements.

Claims

1. A tooling for machining a combination of two angled strut joint holes, characterized in that, The system includes a main support rod (1), a secondary support rod (2), a pad (3), a base (4), an outer circular positioning support plate (5), an inner circular positioning cylinder (6), a support bolt (7), a main support rod V-shaped seat (8), a main clamping block (9), a secondary support rod V-shaped seat (10), a secondary clamping block (11), a nut (12), a slotted screw (13), and a hexagonal screw (14). The main support rod (1) and the secondary support rod (2) are joined together at their two joints and positioned and fixed by the main support rod V-shaped seat (8), the secondary support rod V-shaped seat (10), the positioning component, and the fixing component. The main support rod (1) includes a main support rod connector hole (1-1), an outer end face (1-2) of the main support rod connector hole, an inner end face (1-3) of the main support rod connector hole, a main support rod body (1-4) and an outer cylindrical surface (1-5) of the main support rod connector hole. The main support rod (1) has a main support rod connector hole (1-1) that needs to be machined. The auxiliary support rod (2) includes an auxiliary support rod connector hole (2-1), an outer end face of the auxiliary support rod connector hole (2-2), a small outer cylindrical surface of the auxiliary support rod connector hole (2-3), a large outer cylindrical surface of the auxiliary support rod connector hole (2-4), an inner end face of the auxiliary support rod connector hole (2-5), a cylindrical surface of the inner end face of the auxiliary support rod connector hole (2-6), and an auxiliary support rod body (2-7). The auxiliary support rod (2) has an auxiliary support rod connector hole (2-1) that needs to be machined. The outer circular positioning support plate (5) is set on the main support rod (1) and the auxiliary support rod (2). The inner circular positioning cylinder (6) is set on the cylindrical surface (2-6) of the inner end face of the auxiliary support rod joint hole and the boss (4-2) of the base (4). The main support rod V-shaped seat (8) and the auxiliary support rod V-shaped seat (10) are set on the base (4). The pad (3) is set on the machine tool table. The base (4) is set on the pad (3). The main clamping block (9) and the auxiliary clamping block (11) are respectively set on the main support rod V-shaped seat (8) and the auxiliary support rod V-shaped seat (10). The inner cylindrical positioning cylinder (6) is engaged with the boss (4-2) of the base (4) through the inner hole (6-1). The outer cylindrical surface (6-2) and cylindrical end face (6-3) of the inner cylindrical positioning cylinder (6) are engaged with the inner end face cylindrical surface (2-6) of the auxiliary support rod connector hole and fixed on the base (4). The main support rod V-shaped seat (8) and the auxiliary support rod V-shaped seat (10) are both fixed to the base (4) by flathead screws (13); the main clamping block (9) fixes the main support rod body (1-4) in the V-groove (8-1) of the main support rod V-shaped seat (8) by flathead screws (13); the auxiliary clamping block (11) fixes the auxiliary support rod body (2-7) in the V-groove (10-1) of the auxiliary support rod V-shaped seat (10) by flathead screws (13); the base (4) is fixed to the pad block (3) by hexagonal screws (14).

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