Stretching equipment for testing special-shaped parts

Abstract

The utility model discloses stretching equipment for testing special-shaped parts. The stretching equipment comprises a base; the two stretching frames in the same pair are arranged on the base; the transverse frames are arranged between the two stretching frames in the same pair; the stretching drive is arranged on the transverse frame; the two stretching heads in the same pair are arranged at the two ends of the special-shaped part respectively, one stretching head is provided with a plurality of first clamping grooves connected with one end of the special-shaped part in a clamping mode, the other stretching head is provided with a plurality of second clamping grooves connected with the other end of the special-shaped part in a clamping mode, one stretching head is connected with the base, and the other stretching head is connected with the stretching drive. In the stretching test process of the special-shaped parts, the two stretching heads in the same pair are installed on the base frame and the stretching drive respectively, then the multiple special-shaped parts are installed in sequence, whether the connection between the special-shaped parts and the stretching heads is stable or not is checked after the special-shaped parts are completely installed, then the stretching drive outputs pulling force, and the multiple special-shaped parts are tested. The test efficiency is high.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of special-shaped part stretching equipment, in particular to a stretching equipment for special-shaped part testing. BACKGROUND

[0002] The stretching equipment is used for testing the tensile strength of special-shaped parts to ensure that the strength of the special-shaped parts meets the design requirements and avoids defective special-shaped parts that may cause safety hazards after installation.

[0003] In related technologies, during the stretching test of special-shaped parts, a special fixture is needed to clamp both ends of the special-shaped part, which results in that only one special-shaped part can be tested during the stretching test, and the test efficiency is low.

[0004] Therefore, it is urgent to provide a stretching equipment for special-shaped part testing that can batch test special-shaped parts. CONTENT OF THE INVENTION

[0005] The present application provides a stretching equipment for special-shaped part testing, which aims to solve the problem of low test efficiency in the prior art, i.e., the need for a special fixture to clamp both ends of a special-shaped part during the stretching test, which results in that only one special-shaped part can be tested during the stretching test.

[0006] To achieve the above-mentioned purpose, the present application provides a stretching equipment for special-shaped part testing, which comprises: a base; a pair of stretching frames, the two stretching frames of the same pair being arranged on the base; a cross frame arranged between the two stretching frames of the same pair; a stretching drive arranged on the cross frame; a pair of stretching heads, the two stretching heads of the same pair being arranged at both ends of the special-shaped part, one stretching head being provided with a plurality of first clamping grooves for clamping one end of the special-shaped part, and the other stretching head being provided with a plurality of second clamping grooves for clamping the other end of the special-shaped part, one stretching head being connected to the base, and the other stretching head being connected to the stretching drive.

[0007] In some embodiments, it further comprises: a connecting rod arranged at one end of the stretching head away from the special-shaped part, the connecting rod being provided with a positioning hole; a first positioning sleeve arranged at the output end of the stretching drive, the first positioning sleeve being provided with a first connecting hole matched with the positioning hole; and a first positioning rod arranged in the first connecting hole and passing through the positioning hole.

[0008] In some embodiments, it further comprises: a second positioning sleeve arranged on the base, the second positioning sleeve being provided with a second connecting hole matched with the positioning hole; and a second positioning rod arranged in the second connecting hole and passing through the other positioning hole.

[0009] In some embodiments, further comprising: a limiting surface, the first positioning sleeve and the second positioning sleeve are both provided with the limiting surface to limit the insertion depth of the connecting rod.

[0010] In some embodiments, further comprising: a plurality of locking screws, the plurality of locking screws are arranged at intervals on the stretching head.

[0011] In some embodiments, further comprising: a locking plate, the locking plate is arranged at one end of the locking screw facing the special-shaped part.

[0012] The technical scheme of the present application provides a stretching device for testing special-shaped parts, which comprises a base, a pair of stretching frames, a cross frame, and a pair of stretching heads. The two stretching frames of the same pair are arranged on the base. The cross frame is arranged between the two stretching frames of the same pair. The stretching drive is arranged on the cross frame. The two stretching heads of the same pair are arranged at the two ends of the special-shaped part. One stretching head is provided with a plurality of first clamping grooves for clamping one end of the special-shaped part, and the other stretching head is provided with a plurality of second clamping grooves for clamping the other end of the special-shaped part. One stretching head is connected to the base, and the other stretching head is connected to the stretching drive. During the stretching test of the special-shaped part, the two stretching heads of the same pair are first installed on the base and the stretching drive, respectively, then a plurality of special-shaped parts are sequentially loaded, and after the special-shaped parts are completely loaded, it is checked whether the connection between the special-shaped parts and the stretching heads is stable, and then the stretching drive outputs tension to complete the test of the plurality of special-shaped parts. The test efficiency is high. BRIEF DESCRIPTION OF DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0014] Figure 1 It is a perspective view of a stretching device for testing special-shaped parts in an embodiment of the present application;

[0015] Figure 2 It is a partial enlarged view of part A in 1;

[0016] Figure 3 It is a perspective view of a stretching head and a special-shaped part in an embodiment of the present application;

[0017] Figure 4 It is a sectional view of the stretching head and the special-shaped part in an embodiment of the present application;

[0018] Figure 5 It is a partial enlarged view of part B in 4.

[0019] In the figure: base 1, cross frame 2, stretching drive 3, stretching frame 4, first positioning sleeve 5, connecting rod 6, positioning hole 61, stretching head 7, special-shaped part 8, second positioning sleeve 9, second positioning rod 11, locking screw 12, locking plate 121. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0021] It should be noted that all directional indications, such as up, down, left, right, front, back, etc., in the embodiments of the present application are only used to explain the relative positional relationship, movement condition, etc. between components in a certain posture (as shown in the drawings), and if the certain posture changes, the directional indications also change accordingly.

[0022] It should also be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or can have a middle element. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or can have a middle element.

[0023] In addition, the description involving "first", "second" and the like in the present application is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" can explicitly or implicitly include at least one of the features. In addition, the technical solutions of various embodiments can be combined with each other, but it must be based on the fact that a person skilled in the art can realize it, and when the combination of technical solutions contradicts each other or cannot be realized, it should be considered that the combination of technical solutions does not exist, and is not within the scope of protection claimed by the present application.

[0024] Reference is made to Figure 1 , Figure 2 and Figure 3As shown, the present application provides a kind of special-shaped part test with stretching equipment, including: base 1;A pair of stretching frame 4, same pair of two stretching frames 4 are arranged in base 1;Cross 2, cross 2 is arranged between same pair of two stretching frames 4;Stretching drive 3, stretching drive 3 is arranged in cross 2;A pair of stretching head 7, same pair of two stretching heads 7 are divided in the two ends of special-shaped part 8, one stretching head 7 is provided with a plurality of first clamping grooves for clamping one end of special-shaped part 8, and the other stretching head 7 is provided with a plurality of second clamping grooves for clamping the other end of special-shaped part 8, one stretching head 7 is connected to base 1, and the other stretching head 7 is connected to stretching drive 3.

[0025] Wherein, base 1 is the structural basis of a kind of special-shaped part test with stretching equipment, and other structures on a kind of special-shaped part test with stretching equipment are directly or indirectly installed on base 1.A pair of stretching frame 4 is the structural basis of cross 2 and stretching drive 3, the first clamping groove and the second clamping groove on a pair of stretching head 7 correspond, and the corresponding first clamping groove and the second clamping groove are used to place one special-shaped part 8, and a plurality of corresponding first clamping grooves and second clamping grooves can simultaneously place multiple special-shaped parts 8, one side of first clamping groove and second clamping groove is provided with opening, and the end of special-shaped part 8 is placed into first clamping groove or second clamping groove through opening, after special-shaped part 8 is completely installed in place, the tension of stretching drive 3 is output, and the stretching test of special-shaped part 8 can be realized.

[0026] Specifically, in the process of stretching test of special-shaped part 8, same pair of two stretching heads 7 are installed on the bottom frame and stretching drive 3 respectively, then multiple special-shaped parts 8 are sequentially loaded, and after special-shaped part 8 is completely loaded, it is checked whether the connection of special-shaped part 8 and stretching head 7 is stable, then the tension of stretching drive 3 is output, and the test of multiple special-shaped parts 8 is completed.The test efficiency is high.

[0027] In detail, stretching drive 3 is a hydraulic cylinder, and base 1 is also connected with hydraulic station and control panel, for controlling the progress of stretching test.

[0028] Wherein, the material of base 1, stretching frame 4 and cross 2 is selected from corrosion-resistant alloy such as stainless steel, which has good mechanical properties and excellent corrosion resistance, and helps a kind of special-shaped part test with stretching equipment to adapt to various harsh environments.

[0029] Referring to Figure 1 、 Figure 2 And Figure 3As shown, in some embodiments, the device further includes: a connecting rod 6, with the end of the stretching head 7 away from the irregular part 8 provided with the connecting rod 6, the connecting rod 6 being connected to the stretching head 7 by a threaded connection, the connecting rod 6 having a positioning hole 61, the end of the connecting rod 6 away from the stretching head 7 having a positioning hole 61, the positioning hole 61 being a through hole; a first positioning sleeve 5, the first positioning sleeve 5 being provided at the output end of the stretching drive 3, the first positioning sleeve 5 having a first connecting hole adapted to the positioning hole 61; and a first positioning rod, the first positioning rod being provided at the first connecting hole and passing through the positioning hole 61. The first positioning rod extends into the first connecting hole and passes through the positioning hole 61 of the connecting rod 6, realizing the vertical connection between the output end of the stretching drive 3 and the stretching head 7. Preferably, the first positioning rod has an external thread, and the first connecting hole has an internal thread adapted to the external thread of the first positioning rod, thereby improving the stability of the vertical connection between the output end of the stretching drive 3 and the stretching head 7. The first connecting hole is also a through hole, and the end of the first positioning rod extends out of the first connecting hole.

[0030] In this embodiment, the first positioning sleeve 5 includes a first connecting end and a first sleeve end. The first sleeve end is used to connect to the connecting rod 6 of a tension head 7, and the first connecting end is connected to the output end of the tension drive 3 by a thread.

[0031] See Figure 1 , Figure 2 and Figure 3 As shown, in some embodiments, it further includes: a second positioning sleeve 9, which is disposed on the base 1 and has a second connecting hole adapted to the positioning hole 61; and a second positioning rod 11, which is disposed in the second connecting hole and passes through another positioning hole 61. The second positioning rod 11 extends into the second connecting hole and passes through the positioning hole 61 of the other connecting rod 6, thereby connecting the other stretching head 7 to the base 1. Preferably, the second positioning rod 11 has an external thread, and the second connecting hole has an internal thread adapted to the external thread of the second positioning rod 11, thereby improving the stability of the vertical connection between the base 1 and the other stretching head 7. The second connecting hole is also a through hole, and the end of the second positioning rod 11 extends out of the first connecting hole.

[0032] In this embodiment, the second positioning sleeve 9 includes a second sleeve end and a second connecting end. The second sleeve end is used to connect the connecting rod 6 of another stretching head 7. The base 1 is provided with a threaded hole, and the second connecting end is connected to the base 1 by a thread.

[0033] See Figure 1 , Figure 2 and Figure 3As shown, in some embodiments, it further includes a limiting surface. Both the first positioning sleeve 5 and the second positioning sleeve 9 are provided with limiting surfaces to limit the insertion depth of the connecting rod 6. The limiting surface is used to limit the insertion depth of the connecting rod 6. When the connecting rod 6 abuts against the limiting surface, the positioning hole 61 is aligned with the first connecting hole or the second connecting hole.

[0034] See Figure 4 and Figure 5 As shown, in some embodiments, it further includes: a plurality of locking screws 12, which are spaced apart from the stretching head 7. After the irregular part 8 is inserted, the locking screws 12 are screwed to make the ends of the locking screws 12 abut against the irregular part 8, thereby restricting the planar movement of the irregular part 8 by friction.

[0035] See Figure 4 and Figure 5 As shown, in some embodiments, a locking plate 121 is further included, which is disposed at the end of the locking screw 12 facing the irregular part 8. The locking plate 121 is used to increase the contact area between the irregular part 8 and the end of the locking screw 12. The locking plate 121 is provided with a threaded hole and is detachably mounted to the end of the locking screw 12.

[0036] The above description is only a part or preferred embodiment of this application. Neither the text nor the drawings should limit the scope of protection of this application. All equivalent structural transformations made using the content of this application's specification and drawings under the overall concept of this application, or direct / indirect applications in other related technical fields, are included within the scope of protection of this application.

Claims

1. A tensile apparatus for testing a profiled part, characterized in that, It comprises: a base (1); a pair of stretching frames (4), two of the stretching frames (4) in the same pair are arranged on the base (1); a cross frame (2), the cross frame (2) is arranged between the two stretching frames (4) in the same pair; a stretching drive (3), the stretching drive (3) is arranged on the cross frame (2); a pair of stretching heads (7), two of the stretching heads (7) in the same pair are arranged at two ends of a profiled part (8), one of the stretching heads (7) is provided with a plurality of first clamping grooves for clamping one end of the profiled part (8), and the other of the stretching heads (7) is provided with a plurality of second clamping grooves for clamping the other end of the profiled part (8), one of the stretching heads (7) is connected to the base (1), and the other of the stretching heads (7) is connected to the stretching drive (3).

2. A tensile apparatus for testing a profiled part according to claim 1, characterized in that, It further comprises: a connecting rod (6), the connecting rod (6) is arranged at an end of the stretching head (7) away from the profiled part (8), and the connecting rod (6) is provided with a positioning hole (61); a first positioning sleeve (5), the first positioning sleeve (5) is arranged at an output end of the stretching drive (3), and the first positioning sleeve (5) is provided with a first connecting hole matched with the positioning hole (61); a first positioning rod, the first positioning rod is arranged in the first connecting hole and passes through one of the positioning holes (61).

3. A tensile apparatus for testing a profiled part according to claim 2, wherein, It further comprises: a second positioning sleeve (9), the second positioning sleeve (9) is arranged on the base (1), and the second positioning sleeve (9) is provided with a second connecting hole matched with the positioning hole (61); a second positioning rod (11), the second positioning rod (11) is arranged in the second connecting hole and passes through the other of the positioning holes (61).

4. A stretching apparatus for testing a profiled part according to claim 3, characterized in that, It further comprises: a limiting surface, the first positioning sleeve (5) and the second positioning sleeve (9) are both provided with a limiting surface to limit the insertion depth of the connecting rod (6).

5. The stretching apparatus for testing of profiled parts according to claim 1, characterized in that, It further comprises: a plurality of locking screws (12), the plurality of locking screws (12) are arranged at intervals on the stretching head (7).

6. A stretching apparatus for testing a profiled part according to claim 5, characterized in that, It further comprises: a locking plate (121), the locking plate (121) is arranged at an end of the locking screw (12) facing the profiled part (8).

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