Angular structural part positioning clamp

Abstract

The utility model relates to an angular structural part positioning clamp which comprises a base, a first supporting plate and a second supporting plate are arranged on the two sides of the upper face of the base respectively, and a first positioning block and a second positioning block are arranged on the upper face and in the middle of the first supporting plate. Fixing blocks are symmetrically arranged on the two sides of the upper end of the second supporting plate and can be matched with the first fixing blocks. A tensioning fixing shaft is arranged on the lower portion of the second supporting plate. The clamp is reasonable in design, simple in structure, low in manufacturing cost and easy and convenient to operate, and can replace a plurality of ejector rods to achieve positioning work of angular workpieces; according to the clamp, the operability and the stability are fully considered under the condition that the clamping stability is guaranteed, raw materials and structures which are easy to manufacture and low in cost are adopted, the clamp is suitable for rapid machining of products, the proportion of bad products caused by improper clamping in the inspection process is reduced, and the cost consumption of small-batch products is effectively reduced; and the earlier-stage investment cost and time are greatly reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of tooling fixtures, and particularly relates to a positioning fixture for an angular structural member. Background Art

[0002] Due to its corrosion resistance, high temperature resistance and high strength characteristics, superalloy is widely used in the aviation field; however, because most superalloy products have special-shaped structures, it is inconvenient to process and clamp them. For example, for an angular support member, its upper end is provided with a fixed flange and its lower end is provided with fixed hole positions. During the clamping process, it is necessary to use a combination of multiple ejector rods to fix it, and the positioning may be inaccurate during the clamping process, resulting in poor processing, reduced production efficiency and product qualification rate. Summary of the Invention

[0003] Aiming at the deficiencies of the prior art, the utility model provides a positioning fixture for an angular structural member.

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

[0005] A positioning fixture for an angular structural member, comprising:

[0006] A base, on both sides of the upper surface of the base, a first support plate and a second support plate are respectively arranged, and a connecting plate is symmetrically arranged between the first support plate and the second support plate;

[0007] A first positioning block, the first positioning block is installed at the upper end of the first support plate by using a first connecting block, a first positioning card slot is opened in the middle of the first positioning block, and first ejector blocks are respectively arranged at both ends of the first positioning block;

[0008] A second positioning block, the second positioning block is installed in the middle of the first support plate by using a second connecting block, and a second positioning card slot is opened in the middle of the second positioning block;

[0009] A fixing block, the fixing block is symmetrically installed on the upper part of the second support plate by using a third fixing member, and the fixing block can cooperate with the first positioning block;

[0010] A tensioning and fixing shaft, the tensioning and fixing shaft is installed at the lower part of the second support plate by the cooperation of a mounting plate and a clamping plate.

[0011] Preferably, the tensioning and fixing shaft comprises a tensioning sleeve, a tensioning shaft and a pull rod. A limiting plate is arranged on the outer side of the tensioning sleeve, a tensioning shaft is arranged inside the tensioning sleeve, an expansion boss is arranged at one end of the tensioning shaft, and an arc-shaped tensioning piece capable of cooperating with the expansion boss is arranged on one side of the tensioning sleeve; a connecting hole is arranged at the other end of the tensioning shaft, a pull rod is screwed in the connecting hole, and a rotary card slot capable of cooperating with the clamping plate is arranged at one end of the pull rod.

[0012] Preferably, the upper end and the middle portion of the first support plate are respectively provided with a first slot and a second slot which can be matched with the first connecting block and the second connecting block.

[0013] Preferably, a first mounting block is provided on the first support plate below the first slot, and a first connecting piece capable of cooperating with the first connecting block is provided on the upper end of the first mounting block; a second mounting block is provided on the first support plate below the second slot, and a second connecting piece capable of cooperating with the second connecting block is provided on the upper end of the second mounting block.

[0014] Preferably, the two connecting plates are respectively provided with corresponding first and second clamping blocks, and the first and second clamping blocks are respectively provided with second and third top blocks.

[0015] Preferably, a first socket is provided on one connecting plate, a first plug block capable of cooperating with the first socket is provided on the first card block, and a first fixing member capable of cooperating with the first connecting plate is provided on the first plug block; a second socket is provided on the other connecting plate, and a second plug block capable of cooperating with the second socket is provided on the second card block.

[0016] Preferably, a third mounting block is provided on one connecting plate, and a third connecting piece capable of cooperating with the second clamping block is provided on the third mounting block.

[0017] Preferably, a mounting hole is provided on the base, and the lower ends of the first support plate and the second support plate are provided with connecting protrusions that can cooperate with the mounting hole.

[0018] Compared with the prior art, the present invention has the following advantages:

[0019] The utility model has a reasonable design, a simple structure, a low manufacturing cost and is easy to operate. This clamp can replace multiple push rods to realize the positioning of angular workpieces; it fully considers the operability and stability under the condition of ensuring the stability of clamping, adopts easy-to-make, low-cost raw materials and structures, is suitable for rapid processing of products, and reduces the proportion of defective products caused by improper clamping during the inspection process, effectively reducing the cost of small batch products; greatly reducing the cost and time of the initial investment, so that rapid production and batch orders can be obtained. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0021] Figure 2 It is a partial structural diagram of the utility model.

[0022] Figure 3 It is a main sectional view of the present utility model.

[0023] Figure 4 Partial structural schematic diagram of the first support plate and the second support plate of the present utility model.

[0024] Figure 5 Left cross-sectional view of the present utility model.

[0025] In the figure: 1, base; 2, first support plate; 3, second support plate; 4, connecting plate; 5, first positioning block; 6, first connecting block; 7, first positioning slot; 8, first top block; 9, second positioning block; 10, second connecting block; 11, second positioning slot; 12, fixing block; 13, third fixing member; 14, tensioning fixing shaft; 15, mounting plate; 16, clamping plate; 17, expansion sleeve; 18, expansion shaft; 19, pull rod; 20, limiting plate; 21, expansion boss; 22, arc-shaped expansion piece; 23, connecting hole; 25, rotation slot; 26, first slot; 27, second slot; 28, first mounting block; 29, first connecting member; 30, second mounting block; 31, second connecting member; 32, first clamping block; 33, second clamping block; 34, second top block; 35, third top block; 36, first insertion hole; 37, first insertion block; 38, first fixing member; 39, second insertion hole; 40, second insertion block; 42, third mounting block; 43, third connecting member; 44, mounting hole; 45, connecting convex block. Specific embodiments

[0026] In order to enable those skilled in the art to better understand the solution of the present utility model, the technical solution of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings.

[0027] This embodiment provides an angular structural member positioning fixture, including a base 1, a first positioning block 5, a second positioning block 9, a fixing block 12, and a tensioning fixing shaft 14. The base 1 is used to provide installation support for each component, and the first positioning block 5 and the second positioning block 9 can cooperate with each other to clamp the end flange of the workpiece;

[0028] As Figures 1 - 5 shown, on both sides of the upper surface of the base 1, a first support plate 2 and a second support plate 3 are respectively provided. A connecting plate 4 is symmetrically arranged between the first support plate 2 and the second support plate 3. The first support plate 2, the second support plate 3, and the connecting plate 4 form a support frame;

[0029] The first positioning block 5 is installed at the upper end of the first support plate 2 by using a first connecting block 6. A first positioning slot 7 is opened in the middle of the first positioning block 5. First top blocks 8 are respectively arranged at both ends of the first positioning block 5. The first positioning slot 7 and the first top blocks 8 are convenient for cooperating with the upper flange of the workpiece to implement tightening;

[0030] The second positioning block 9 is mounted on the middle of the first support plate 2 by means of the second connecting block 10. A second positioning slot 11 is provided in the middle of the second positioning block 9. The second positioning slot 11 facilitates tightening the lower corner portion of the workpiece.

[0031] The fixing block 12 is symmetrically mounted on the upper portion of the second support plate 3 using the third fixing member 13. The fixing block 12 can cooperate with the first positioning block 5. The fixing block 12 cooperates with the first positioning block 5 to tighten both sides of the upper flange portion of the workpiece.

[0032] The tensioning and fixing shaft 14 is installed on the lower part of the second support plate 3 by using the cooperation of the mounting plate 15 and the clamping plate 16. The tensioning and fixing shaft 14 can extend into the hole at the lower end of the workpiece to tighten and fix the lower end of the workpiece.

[0033] Furthermore, the tightening and fixing shaft 14 includes an expansion sleeve 17, an expansion shaft 18 and a pull rod 19. A limit plate 20 is provided on the outside of the expansion sleeve 17. The limit plate 20 cooperates with the mounting plate 15 to axially fix one end of the expansion sleeve 17.

[0034] An expansion shaft 18 is provided inside the expansion sleeve 17, and an expansion boss 21 is provided at one end of the expansion shaft 18. An arc-shaped expansion piece 22 that can cooperate with the expansion boss 21 is provided on one side of the expansion sleeve 17. The expansion boss 21 can expand the arc-shaped expansion piece 22, making it easier for the arc-shaped expansion piece 22 to expand and cooperate with the inner wall of the hole at the lower end of the workpiece to fix the lower end of the workpiece;

[0035] The other end of the expansion shaft 18 is provided with a connecting hole 23, and a pull rod 19 is screwed into the connecting hole 23. One end of the pull rod 19 is provided with a rotating slot 25 that can cooperate with the clamping plate 16. The rotating slot 25 cooperates with the clamping plate 16 to fix the axial position of the pull rod 19. The pull rod 19 rotates to drive the expansion shaft 18 to move axially, thereby expanding or relaxing the arc-shaped expansion piece 22.

[0036] Furthermore, the upper end and the middle part of the first support plate 2 are respectively provided with a first slot 26 and a second slot 27 that can cooperate with the first connecting block 6 and the second connecting block 10. One end of the first connecting block 6 can be inserted into the first slot 26; one end of the second connecting block 10 can be inserted into the second slot 27.

[0037] Furthermore, a first mounting block 28 is provided on the first support plate 2 below the first slot 26 , and a first connecting member 29 capable of cooperating with the first connecting block 6 is provided on the upper end of the first mounting block 28 , and the first connecting member 29 is used to fix the first connecting block 6 ;

[0038] The first connecting member 29 is a connecting bolt, which is screwed to the first connecting block 6. By installing a gasket between the first connecting block 6 and the first mounting block 28, the position of the first positioning block 5 can be adjusted to better clamp the workpiece.

[0039] A second mounting block 30 is provided on the first support plate 2 below the second slot 27. A second connecting member 31 that can cooperate with the second connecting block 10 is provided on the upper end of the second mounting block 30. The second connecting member 31 is used to fix the second connecting block 10. The second connecting member 31 has the same structure and function as the first connecting member 29.

[0040] Furthermore, the two connecting plates 4 are respectively provided with corresponding first clamping blocks 32 and second clamping blocks 33, and the first clamping blocks 32 and the second clamping blocks 33 are used to assist in clamping the upper flange of the workpiece;

[0041] A second top block 34 and a third top block 35 are respectively provided on the first clamping block 32 and the second clamping block 33 . The second top block 34 and the third top block 35 enable the first clamping block 32 and the second clamping block 33 to better clamp the workpiece.

[0042] Furthermore, a first insertion hole 36 is formed on a connecting plate 4, a first plug block 37 capable of cooperating with the first insertion hole 36 is provided on the first clamping block 32, and a first fixing member 38 capable of cooperating with the first connecting plate 4 is provided on the first plug block 37. The first fixing member 38 is used to fix the first clamping block 32;

[0043] A second plug hole 39 is formed on the other connecting plate 4 , and a second plug block 40 that can cooperate with the second plug hole 39 is provided on the second clamping block 33 .

[0044] Furthermore, a third mounting block 42 is provided on one connecting plate 4 , and a third connecting member 43 capable of cooperating with the second clamping block 33 is provided on the third mounting block 42 . The third connecting member 43 is used to fix the second clamping block 33 .

[0045] Furthermore, a mounting hole 44 is provided on the base 1, and the lower ends of the first support plate 2 and the second support plate 3 are provided with connecting protrusions 45 that can cooperate with the mounting hole 44. The connecting protrusions 45 make the connection between the first support plate 2 and the second support plate 3 and the base 1 more secure.

[0046] Furthermore, the first support plate 2, the second support plate 3 and the base 1 are fixed by bolts; the first support plate 2, the second support plate 3 and the connecting plate 4 are fixed by bolts; the bolt connection makes it easy to install and disassemble each component.

[0047] Working principle: Through the cooperation of the first positioning block 5 and the fixing block 12, the two sides of the flange part at the upper end of the workpiece can be fixed; the first clamping block 32 and the second clamping block 33 are used to assist in fixing the two ends of the flange part of the workpiece; the second positioning block 9 can fix the lower bent corner part of the workpiece; the tensioning and fixing shaft 14 can extend into the inner hole position of the lower end of the workpiece to perform tensioning and fixing on the inner hole position of the lower end of the workpiece, so that the workpiece is firmly clamped on the fixture.

[0048] It can be understood that the above embodiments are only exemplary embodiments adopted to illustrate the principle of the present invention, and the present invention is not limited thereto. For those of ordinary skill in the art, various modifications and improvements can be made without departing from the spirit and essence of the present invention, and these modifications and improvements are also regarded as the protection scope of the present invention.

Claims

1. A positioning fixture for an angular structural member, characterized in that Comprising: A base, on both sides of the upper surface of the base, a first support plate and a second support plate are respectively arranged, and a connecting plate is symmetrically arranged between the first support plate and the second support plate; A first positioning block, the first positioning block is installed at the upper end of the first support plate by a first connecting block, a first positioning slot is opened in the middle of the first positioning block, and first jacking blocks are respectively arranged at both ends of the first positioning block; A second positioning block, the second positioning block is installed in the middle of the first support plate by a second connecting block, and a second positioning slot is opened in the middle of the second positioning block; A fixing block, the fixing block is symmetrically installed on the upper part of the second support plate by a third fixing member, and the fixing block can cooperate with the first positioning block; A tensioning and fixing shaft, the tensioning and fixing shaft is installed at the lower part of the second support plate by the cooperation of a mounting plate and a clamping plate.

2. The positioning fixture for an angular structural member according to claim 1, characterized in that The tensioning and fixing shaft includes a tensioning sleeve, a tensioning shaft and a pull rod. A limiting plate is arranged on the outer side of the tensioning sleeve, a tensioning shaft is arranged inside the tensioning sleeve, an expansion boss is arranged at one end of the tensioning shaft, and an arc-shaped tensioning piece capable of cooperating with the expansion boss is arranged on one side of the tensioning sleeve; A connecting hole is arranged at the other end of the tensioning shaft, a pull rod is screwed in the connecting hole, and a rotary slot capable of cooperating with the clamping plate is arranged at one end of the pull rod.

3. The positioning fixture for an angular structural member according to claim 1, characterized in that, First slots and second slots capable of cooperating with the first connecting block and the second connecting block are respectively opened at the upper end and the middle of the first support plate.

4. The positioning fixture for an angular structural member according to claim 3, characterized in that, A first mounting block is arranged on the first support plate below the first slot, a first connecting member capable of cooperating with the first connecting block is arranged at the upper end of the first mounting block, a second mounting block is arranged on the first support plate below the second slot, and a second connecting member capable of cooperating with the second connecting block is arranged at the upper end of the second mounting block.

5. The positioning fixture for an angular structural member according to claim 1, characterized in that, Corresponding first clamping blocks and second clamping blocks are respectively arranged on the two connecting plates, and a second jacking block and a third jacking block are respectively arranged on the first clamping block and the second clamping block.

6. The positioning fixture for an angular structural member according to claim 5, characterized in that, A first jack is opened on one connecting plate, a first plug block capable of cooperating with the first jack is arranged on the first clamping block, and a first fixing member capable of cooperating with the first connecting plate is arranged on the first plug block; A second jack is opened on the other connecting plate, and a second plug block capable of cooperating with the second jack is arranged on the second clamping block.

7. The positioning fixture for an angular structural member according to claim 6, characterized in that, A third mounting block is arranged on one connecting plate, and a third connecting member capable of cooperating with the second clamping block is arranged on the third mounting block.

8. The positioning fixture for an angular structural member according to claim 1, characterized in that, Mounting holes are opened on the base, and connecting convex blocks capable of cooperating with the mounting holes are arranged at the lower ends of the first support plate and the second support plate.

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