阅读说明：本技术 一种镁合金棒材用拉伸夹具 (Tensile fixture for magnesium alloy bar ) 是由 杨潘 李艳芳 胡丽君 李文娟 胡行 李春华 于 2020-12-28 设计创作，主要内容包括：本发明公开了一种镁合金棒材用拉伸夹具,包括合金棒材,合金棒材顶部固定安装有顶部固定装置,顶部固定装置顶部固定安装有连接座,连接座顶部固定安装有第一拉伸柱,合金棒材底部固定安装有底部固定装置,底部固定装置底部固定安装有第一液压柱,第一液压柱底部固定安装有固定板,固定板底部固定安装有第二拉伸柱,顶部固定装置包括外壳、第一夹持盘、辅助夹持柱、第二夹持盘和第二液压柱。该种镁合金棒材用拉伸夹具,结构简单合理,设计新颖,通过第一加持盘和第二夹持盘的设置,对合金棒材的顶部进行双重夹持,同时第一加持盘和第二夹持盘内部也固定安装有辅助夹持柱对合金棒材进行再次夹持,保证夹持的稳定。(The invention discloses a tensile fixture for magnesium alloy bars, which comprises an alloy bar, wherein a top fixing device is fixedly arranged at the top of the alloy bar, a connecting seat is fixedly arranged at the top of the top fixing device, a first tensile column is fixedly arranged at the top of the connecting seat, a bottom fixing device is fixedly arranged at the bottom of the alloy bar, a first hydraulic column is fixedly arranged at the bottom of the bottom fixing device, a fixing plate is fixedly arranged at the bottom of the first hydraulic column, a second tensile column is fixedly arranged at the bottom of the fixing plate, and the top fixing device comprises a shell, a first clamping disc, an auxiliary clamping column, a second clamping disc and a second hydraulic column. This kind of magnesium alloy is tensile anchor clamps for rod, simple structure is reasonable, and the modern design holds the setting of dish and second centre gripping dish through first adding, carries out dual centre gripping to the top of alloy rod, and first adding simultaneously holds the dish and the inside also fixed mounting of second centre gripping dish has supplementary centre gripping post to carry out centre gripping once more to the alloy rod, guarantees the stability of centre gripping.)

1. The stretching clamp for the magnesium alloy bar comprises an alloy bar (1) and is characterized in that a top fixing device (2) is fixedly mounted at the top of the alloy bar (1), a connecting seat (3) is fixedly mounted at the top of the top fixing device (2), a first stretching column (4) is fixedly mounted at the top of the connecting seat (3), a bottom fixing device (5) is fixedly mounted at the bottom of the alloy bar (1), a first hydraulic column (6) is fixedly mounted at the bottom of the bottom fixing device (5), a fixing plate (7) is fixedly mounted at the bottom of the first hydraulic column (6), a second stretching column (8) is fixedly mounted at the bottom of the fixing plate (7), the top fixing device (2) comprises a shell (9), a first clamping disc (10), an auxiliary clamping column (11), a second clamping disc (12) and a second hydraulic column (13), bottom fixing device (5) include frame (14), frame (14) inside is fixed with adjusts snap ring (15), adjust snap ring (15) external fixation and be provided with solid fixed ring (16), it is fixed to be provided with two to adjust snap ring (15).

2. The stretching clamp for the magnesium alloy rod according to claim 1, wherein a first clamping disc (10) is fixedly installed inside the shell (9), mounting grooves are fixedly formed in the first clamping disc (10) and a second clamping disc (12), auxiliary clamping columns (11) are fixedly installed inside the mounting grooves in the first clamping disc (10), four groups of the auxiliary clamping columns (11) are fixedly arranged, a second hydraulic column (13) is fixedly installed at the top of the first clamping disc (10), a second clamping disc (12) is fixedly installed at the top of the second hydraulic column (13), and four groups of the second hydraulic column (13) are fixedly arranged.

3. The stretching clamp for the magnesium alloy rod according to claim 1, wherein an adjusting rod (17) is fixedly arranged on one side of the adjusting snap ring (15), a telescopic cylinder is fixedly arranged on one side of the adjusting rod (17) and inside the outer frame (14), and anti-skid lines are fixedly arranged inside the adjusting snap ring (15).

4. The stretching clamp for the magnesium alloy bar according to claim 1 or 2, wherein the auxiliary clamping column (11) is fixedly provided with a telescopic spring inside the mounting groove, and the first clamping disc (10) and the second clamping disc (12) are clamped inside the shell (9).

5. The drawing fixture for the magnesium alloy bar according to claim 1, wherein the connecting seat (3) is welded on the top of the shell (9), the first drawing column (4) is fixedly installed on the top of the connecting seat (3) through spot welding, and a connecting hole is fixedly formed in one side of the first drawing column (4).

6. The stretching clamp for the magnesium alloy bar according to claim 1, wherein the second stretching column (8) is fixedly installed at the bottom of the fixing plate (7) through spot welding, and a connecting hole is fixedly formed in one side of the second stretching column (8).

7. The stretching clamp for the magnesium alloy bar according to claim 1, wherein the top fixing device (2), the connecting seat (3), the first stretching column (4), the second stretching column (8) and the fixing plate (7) are all fixedly sprayed with antirust coatings.

Technical Field

The invention relates to the technical field of clamps, in particular to a tensile clamp for magnesium alloy bars.

Background

The magnesium alloy is an alloy formed by adding other elements on the basis of magnesium. The method is characterized in that: the alloy has the advantages of high density (about 1.8g/cm3 magnesium alloy), high strength, large elastic modulus, good heat dissipation, good shock absorption, larger impact load bearing capacity than aluminum alloy, and good organic matter and alkali corrosion resistance. The main alloy elements comprise aluminum, zinc, manganese, cerium, thorium, a small amount of zirconium or cadmium and the like. Currently, the most widely used are magnesium-aluminum alloys, followed by magnesium-manganese alloys and magnesium-zinc-zirconium alloys. The method is mainly used in aviation, aerospace, transportation, chemical engineering, rocket and other industrial departments. The lightest of the practical metals, magnesium has a specific gravity of about 2/3 for aluminum and 1/4 for iron. It is the lightest metal of practical metals, and has high strength and high rigidity.

In the production and development process of magnesium alloy, the performance test of magnesium alloy is needed to judge the performance of magnesium alloy. Wherein, the magnesium alloy bar needs to be subjected to tensile test of mechanical property. In the prior art, a wedge-shaped hydraulic clamp is often used for clamping magnesium alloy bars, but the clamp is complex to debug and long in bar installation time, so that the test time is prolonged, and the detection efficiency is reduced. Therefore, we improve the drawing clamp for the magnesium alloy bar.

Disclosure of Invention

In order to solve the technical problems, the invention provides the following technical scheme:

the invention relates to a tensile clamp for a magnesium alloy bar, which comprises an alloy bar, wherein the top of the alloy bar is fixedly provided with a top fixing device, the top of the top fixing device is fixedly provided with a connecting seat, the top of the connecting seat is fixedly provided with a first tensile column, the bottom of the alloy bar is fixedly provided with a bottom fixing device, the bottom of the bottom fixing device is fixedly provided with a first hydraulic column, the bottom of the first hydraulic column is fixedly provided with a fixing plate, the bottom of the fixing plate is fixedly provided with a second tensile column, the top fixing device comprises a shell, a first clamping disc, an auxiliary clamping column, a second clamping disc and a second hydraulic column, the bottom fixing device comprises an outer frame, an adjusting snap ring is fixed inside the outer frame, the outside of the adjusting snap ring is fixedly provided with a fixing ring, and the adjusting snap ring is.

As a preferred technical scheme of the present invention, a first clamping disc is fixedly installed inside the housing, mounting grooves are fixedly installed inside the first clamping disc and the second clamping disc, auxiliary clamping columns are fixedly installed inside the mounting grooves inside the first clamping disc, four groups of the auxiliary clamping columns are fixedly installed, a second hydraulic column is fixedly installed on the top of the first clamping disc, a second clamping disc is fixedly installed on the top of the second hydraulic column, and four groups of the second hydraulic columns are fixedly installed.

As a preferred technical scheme of the invention, one side of the adjusting snap ring is fixedly provided with an adjusting rod, one side of the adjusting rod and the inside of the outer frame are fixedly provided with a telescopic cylinder, and the inside of the adjusting snap ring is fixedly provided with anti-skid grains.

As a preferable technical solution of the present invention, the auxiliary clamping column is fixedly provided with a telescopic spring inside the mounting groove, and the first clamping plate and the second clamping plate are engaged inside the housing.

As a preferred technical scheme of the invention, the connecting seat is welded on the top of the shell, the first stretching column is fixedly arranged on the top of the connecting seat through spot welding, and one side of the first stretching column is fixedly provided with a connecting hole.

As a preferable technical solution of the present invention, the second tension column is fixedly installed at the bottom of the fixing plate by spot welding, and a connection hole is fixedly provided at one side of the second tension column.

As a preferred technical scheme of the invention, the top fixing device, the connecting seat, the first stretching column, the second stretching column and the outer surface of the fixing plate are all fixedly sprayed with antirust coatings.

The invention has the beneficial effects that:

1. according to the stretching clamp for the magnesium alloy bar, mounting grooves are fixedly formed in a first clamping disc and a second clamping disc, auxiliary clamping columns are fixedly mounted in the mounting grooves in the first clamping disc, four groups of the auxiliary clamping columns are fixedly arranged, a second hydraulic column is fixedly mounted at the top of the first clamping disc, a second clamping disc is fixedly mounted at the top of the second hydraulic column, four groups of the second hydraulic columns are fixedly arranged, double clamping is performed on the top of the alloy bar through the arrangement of the first clamping disc and the second clamping disc, and meanwhile the auxiliary clamping columns are also fixedly mounted in the first clamping disc and the second clamping disc to clamp the alloy bar again, so that the clamping stability is guaranteed;

2. this kind of magnesium alloy is tensile anchor clamps for rod, bottom fixing device include the frame, and frame inside is fixed with the regulation snap ring, adjusts the fixed solid fixed ring that is provided with of snap ring outside, adjusts the fixed two that are provided with of snap ring, and two settings of adjusting the snap ring have both guaranteed the centre gripping dynamics to alloy rod, and automatically regulated's setting reduces personnel's participation simultaneously, reduces the time of installation alloy rod, improves detection efficiency.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

FIG. 1 is a perspective view of a tensile jig for a magnesium alloy rod according to the present invention;

FIG. 2 is a schematic diagram of the internal structure of a top fixing device of a tensile clamp for magnesium alloy bars;

fig. 3 is a perspective view of a tensile jig for a magnesium alloy rod of the present invention.

In the figure: 1. alloy bars; 2. a top fixture; 3. a connecting seat; 4. a first tensile column; 5. a bottom fixture; 6. a first hydraulic column; 7. a fixing plate; 8. a second tensile column; 9. a housing; 10. a first clamping plate; 11. an auxiliary clamping post; 12. a second clamping plate; 13. a second hydraulic column; 14. an outer frame; 15. adjusting the snap ring; 16. a fixing ring; 17. and adjusting the rod.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.

Example (b): as shown in fig. 1-3, the tensile fixture for magnesium alloy bars of the present invention comprises an alloy bar 1, a top fixing device 2 is fixedly installed on the top of the alloy bar 1, a connecting seat 3 is fixedly installed on the top of the top fixing device 2, a first stretching column 4 is fixedly installed on the top of the connecting seat 3, a bottom fixing device 5 is fixedly installed on the bottom of the alloy bar 1, a first hydraulic column 6 is fixedly installed on the bottom of the bottom fixing device 5, a fixing plate 7 is fixedly installed on the bottom of the first hydraulic column 6, a second stretching column 8 is fixedly installed on the bottom of the fixing plate 7, the top fixing device 2 comprises a housing 9 and a first clamping disc 10, supplementary centre gripping post 11, second centre gripping dish 12 and second hydraulic column 13, bottom fixing device 5 includes frame 14, and frame 14 inside is fixed with adjusts snap ring 15, adjusts snap ring 15 external fixation and is provided with solid fixed ring 16, adjusts snap ring 15 and fixes and be provided with two.

Wherein, the inside fixed mounting of shell 9 has first centre gripping dish 10, and first centre gripping dish 10 and the inside equal fixed mounting groove that is provided with of second centre gripping dish 12, the inside fixed mounting of the inside mounting groove of first centre gripping dish 10 has supplementary centre gripping post 11, and supplementary centre gripping post 11 is fixed to be provided with four groups, and first centre gripping dish 10 top fixed mounting has second hydraulic column 13, and second hydraulic column 13 top fixed mounting has second centre gripping dish 12, and second hydraulic column 13 is fixed to be provided with four groups.

Wherein, adjust snap ring 15 one side fixed adjustment pole 17 that is provided with, adjust pole 17 one side and in the inside fixed telescopic cylinder that is provided with of outer frame 14, adjust snap ring 15 inside fixed anti-skidding line that is provided with.

Wherein, the auxiliary clamping column 11 is fixedly provided with a telescopic spring in the mounting groove, and the first clamping disk 10 and the second clamping disk 12 are clamped in the shell 9.

Wherein, connecting seat 3 is through welding at the shell 9 top, and first tensile post 4 is through spot welding fixed mounting at connecting seat 3 top, and first tensile post 4 one side is fixed and is provided with the connecting hole.

The second stretching column 8 is fixedly mounted at the bottom of the fixing plate 7 through spot welding, and a connecting hole is fixedly formed in one side of the second stretching column 8.

Wherein, the outer surfaces of the top fixing device 2, the connecting seat 3, the first stretching column 4, the second stretching column 8 and the fixing plate 7 are all fixedly sprayed with antirust coatings.

The working principle is as follows: the user is with 1 top fixed mounting of alloy rod inside 2 at top fixing device, the setting of 2 inside first grip pads 10 and the second grip pads 12 of top fixing device, carry out dual centre gripping to the top of alloy rod 1, simultaneously first with hold that set 10 and the inside also fixed mounting of second grip pads 12 have supplementary centre gripping 11 post to carry out centre gripping once more to the alloy rod, guarantee the stability of centre gripping, after 1 top fixed mounting of alloy rod is good, with 1 bottom fixed mounting of alloy rod inside 5 at bottom fixing device, two inside regulation snap rings 15 of bottom fixing device 5 are under the regulation of regulation pole 17, carry out automatic centre gripping to alloy rod 1, after bottom fixing device 5 is fixed, draw through first stretching post 5 and second and stretch post 8 and stretch alloy rod 1.

Finally, it should be noted that: in the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.