Auxiliary clamp assembly for lengthening small plate sample

Abstract

The utility model discloses an auxiliary clamp assembly for lengthening a small plate sample. Comprising a plate sample piece, an upper connecting piece, an upper extension piece, a lower connecting piece and a lower extension piece, a through hole is formed in an upper extension piece divergent part and an upper extension piece connecting part, the through hole in the upper extension piece divergent part is connected with a connecting hole in the sample piece through a bolt, and the through hole in the upper extension piece connecting part is connected with a through hole in the lower connecting piece; a through hole is formed in the lower extension sheet divergent part and the lower extension sheet connecting part, the through hole in the lower extension sheet divergent part is connected with the lower connecting hole of the sample sheet through a bolt, and the through hole in the lower extension sheet connecting part is connected with the through hole of the upper connecting sheet; the kidney-shaped hole of the upper connecting piece is connected with an upper plate connector of the durability testing machine through a bolt, and the kidney-shaped hole of the lower extending piece is connected with a lower plate connector of the durability testing machine through a bolt. According to the utility model, the clamping end of the plate sample is subjected to auxiliary extension design, so that the problem that a small plate non-standard sample cannot be detected is solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of testing the strength characteristics of solid materials by using mechanical stress, in particular to an auxiliary clamp component for extending a small plate sample. Background Art

[0002] With the development of testing, the samples to be tested have become more diverse and complex. The samples to be tested are no longer limited to standard samples. For some special samples or samples whose raw materials do not meet the requirements of the standard drawings, the clamping end is generally shortened to ensure that the length of the test end meets the requirements of the test method.

[0003] Currently available creep lead-out rods and creep test fixtures are only suitable for testing standard samples. For some samples with too short clamping ends, the creep lead-out rod can only be clamped but cannot be connected to the equipment for testing. Utility Model Content

[0004] Aiming at the auxiliary fixtures for creep test and relaxation test of too short plate samples which do not meet the standards in the background technology, the utility model provides an auxiliary fixture assembly for extending small plate samples, and the technical scheme is as follows: comprising: a plate sample, an upper connecting piece, an upper extension piece, a lower connecting piece and a lower extension piece, wherein the plate sample comprises an upper extension piece docking part, an upper gradually expanding part, a detection part, a lower gradually expanding part and a lower extension piece docking part which are fixedly connected in sequence, wherein both ends of the combined part of the upper gradually expanding part and the detection part are fixedly provided with an upper lug, and both ends of the combined part of the detection part and the lower gradually expanding part are fixedly provided with a lower lug, an upper connecting hole of the sample is opened on the upper gradually expanding part, and a lower connecting hole of the sample is opened on the lower gradually expanding part, and the axes of the upper connecting hole of the sample and the lower connecting hole of the sample are both located on the vertical symmetry line of the plate sample;

[0005] The upper connecting piece and the lower connecting piece are a pair of rectangular connecting pieces with completely the same external dimensions, and are installed in mirror image. Both the upper connecting piece and the lower connecting piece are provided with a through hole and a waist-shaped hole. The waist-shaped hole of the upper connecting piece is connected to the upper connecting head of the plate of the endurance testing machine through bolts, and the waist-shaped hole of the lower extension piece is connected to the lower connecting head of the plate of the endurance testing machine through bolts.

[0006] The upper extension piece includes an upper extension piece connecting portion, an upper extension piece gradually expanding portion and an upper clamping groove extending portion which are fixedly connected in sequence. The upper extension piece gradually expanding portion has the same shape as the upper gradually expanding portion, the upper extension piece connecting portion has the same width as the upper connecting piece, the width of the upper clamping groove extending portion in the left-right direction is equal to the distance between the outer ends of the two upper lugs, and the thickness of the upper clamping groove extending portion in the up-down direction is the same as the thickness of the upper lug so that the upper clamping groove extending portion is inserted into the upper clamping groove of the creep lead-out rod together.

[0007] A through hole is opened on the gradually expanding part of the upper extension piece and the connecting part of the upper extension piece, the through hole on the gradually expanding part of the upper extension piece is connected to the connecting hole on the sample piece through a bolt, and the through hole on the connecting part of the upper extension piece is connected to the through hole of the lower connecting piece;

[0008] The lower extension piece includes a lower extension piece connecting portion, a lower extension piece gradually expanding portion and a lower clamping groove extending portion which are fixedly connected in sequence; the lower extension piece gradually expanding portion has the same shape as the lower gradually expanding portion, the lower extension piece connecting portion has the same width as the lower connecting piece, the left-right width of the lower clamping groove extending portion is equal to the distance between the outer ends of the two lower lugs, and the upper-lower thickness of the lower clamping groove extending portion is the same as the thickness of the lower lug so that the lower clamping groove extending portion is inserted into the lower clamping groove of the creep lead-out rod together;

[0009] A through hole is opened on the gradually expanding part of the lower extension piece and the connecting part of the lower extension piece. The through hole on the gradually expanding part of the lower extension piece is connected to the lower connecting hole of the sample piece through a bolt, and the through hole on the connecting part of the lower extension piece is connected to the through hole of the upper connecting piece.

[0010] The upper extension piece and the lower extension piece have exactly the same structure and are installed in a mirror-image manner.

[0011] The plate sample, the upper connecting piece and the lower connecting piece have the same thickness.

[0012] The plate sample, the upper connecting piece, the upper extension piece, the lower connecting piece and the lower extension piece are bilaterally symmetrical.

[0013] The lower end surface of the upper connecting piece is in contact with the upper end surface of the upper extension piece butt joint portion, and the upper end surface of the lower connecting piece is in contact with the lower end surface of the lower extension piece butt joint portion.

[0014] The widths of the upper connecting piece, the lower connecting piece, the upper extended piece butt joint portion, the lower extended piece butt joint portion, the extended piece connecting portion and the lower extended piece connecting portion are equal.

[0015] The beneficial effect of the utility model is that the clamping end of the plate sample is auxiliary extended so that it can be normally connected to the endurance creep testing machine for testing, thereby solving the problem that small plate non-standard samples cannot be tested, and the processing is simple and the cost is low. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a front view schematic diagram of an embodiment of a small plate sample extension auxiliary clamp assembly of the utility model.

[0017] Figure 2 A rear view schematic diagram of an embodiment of the utility model (direction is the same as Figure 1 ).

[0018] Figure 3 The schematic diagram of the main view of the plate sample in the embodiment of the utility model (direction is the same as Figure 1 ).

[0019] Figure 4 The schematic diagram of the main view of the upper extension piece in the embodiment of the utility model (direction is the same as Figure 1 ).

[0020] Figure 5 The front view of the lower extension piece in the embodiment of the utility model (direction is the same as Figure 1 ).

[0021] Figure 6 It is a schematic front view of the upper connecting piece in the embodiment of the utility model.

[0022] Among them, 1-plate sample, 2-upper connecting piece, 3-lower connecting piece, 4-upper extension piece, 5-lower extension piece, 11-upper extension piece docking part, 12-upper gradually expanding part, 13-detection part, 14-lower gradually expanding part, 15-lower extension piece docking part, 16-upper lug, 17-lower lug, 18-sample lower connecting hole, 19-sample upper connecting hole, 41-upper extension piece gradually expanding part, 42-upper extension piece connecting part, 43-upper card slot extending part, 51-lower extension piece gradually expanding part, 52-lower extension piece connecting part, 53-lower card slot extending part. DETAILED DESCRIPTION

[0023] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0024] like Figures 1 to 6 The embodiment of the utility model shown comprises: a plate sample 1, an upper connecting piece 2, an upper extension piece 4, a lower connecting piece 3 and a lower extension piece 5, wherein the plate sample 1 comprises an upper extension piece docking portion 11, an upper gradually expanding portion 12, a detection portion 13, a lower gradually expanding portion 14 and a lower extension piece docking portion 15 which are fixedly connected in sequence from top to bottom, wherein both ends of the combined portion of the upper gradually expanding portion 12 and the detection portion 13 are fixedly connected with an upper lug 16, and both ends of the combined portion of the detection portion 13 and the lower gradually expanding portion 14 are fixedly connected with a lower lug 17, an upper sample connecting hole 19 is formed on the upper gradually expanding portion 12, and a lower sample connecting hole 18 is formed on the lower gradually expanding portion 14, and the axes of the upper sample connecting hole 19 and the lower sample connecting hole 18 are both located on the vertical symmetry line of the plate sample 1, and the assembled plate sample 1, the upper connecting piece 2, the upper extension piece 4, the lower connecting piece 3 and the lower extension piece 5 are also bilaterally symmetrical;

[0025] like Figure 6 As shown, the upper connecting piece 2 and the lower connecting piece 3 are a pair of rectangular connecting pieces with exactly the same outer dimensions, which are installed in mirror images from top to bottom; the upper connecting piece 2 and the lower connecting piece 3 are each provided with a through hole and a waist-shaped hole; the waist-shaped hole of the upper connecting piece 2 is connected to the upper connecting head of the plate of the durability testing machine through bolts, and the waist-shaped hole of the lower extension piece 5 is connected to the lower connecting head of the plate of the durability testing machine through bolts. In this embodiment, the diameter of the waist-shaped hole is 8 mm and the total length is 16 mm.

[0026] like Figure 1 to Figure 4 The upper extension piece 4 shown comprises an upper extension piece connecting portion 42, an upper extension piece gradually expanding portion 41 and an upper slot extending portion 43 which are fixedly connected in sequence from top to bottom. The shape of the upper extension piece gradually expanding portion 41 is the same as that of the upper gradually expanding portion 12. The width of the upper extension piece connecting portion 42 is the same as that of the upper connecting piece 2. The width of the upper slot extending portion 43 in the left-right direction is equal to the distance between the outer ends of the two upper lugs 16. The thickness of the upper slot extending portion 43 in the vertical direction is the same as that of the upper lug 16 so that they can be inserted into the upper slot of the creep lead-out rod together. The lower end surface of the upper connecting piece 2 is fitted with the upper end surface of the upper extension piece docking portion 11.

[0027] A through hole is formed on both the upper extension piece gradually expanding portion 41 and the upper extension piece connecting portion 42; the through hole on the upper extension piece gradually expanding portion 41 is connected to the connecting hole 19 on the sample piece by a bolt, and the through hole on the upper extension piece connecting portion 42 is connected to the through hole of the lower connecting piece 3.

[0028] like Figure 1 , Figure 2 , Figure 3 and Figure 5 The lower extension piece 5 shown comprises a lower extension piece connecting portion 52, a lower extension piece gradually expanding portion 51 and a lower groove extending portion 53 which are fixedly connected in sequence from bottom to top; the shape of the lower extension piece gradually expanding portion 51 is the same as that of the lower gradually expanding portion 14, the width of the lower extension piece connecting portion 52 is the same as that of the lower connecting piece 3, the width of the lower groove extending portion 53 in the left-right direction is equal to the distance between the outer ends of the two lower lugs 17, and the thickness of the lower groove extending portion 53 in the upper-lower direction is the same as that of the lower lug 17 so that they can be inserted into the lower groove of the creep lead-out rod together; the upper end surface of the lower connecting piece 3 is fitted with the lower end surface of the lower extension piece docking portion 15;

[0029] A through hole is formed on both the lower extension piece gradually expanding portion 51 and the lower extension piece connecting portion 52; the through hole on the lower extension piece gradually expanding portion 51 is connected to the lower connecting hole 18 of the sample piece by bolts, and the through hole on the lower extension piece connecting portion 52 is connected to the through hole of the upper connecting piece 2.

[0030] In this embodiment, the total length of the upper extension piece 4 in the up-down direction is 48 mm, and the maximum width is 30 mm; the size of the through hole on the upper extension piece gradually expanding portion 41 is 8 mm, and the size of the through hole on the upper extension piece connecting portion 42 is 8 mm; the width of the thinnest part of the upper extension piece connecting portion 42 is 15 mm, the width of the upper card slot extension portion 43 in the left-right direction is 19 mm, and the thickness of the upper card slot extension portion 43 in the up-down direction is 2 mm; the upper extension piece 4 and the lower extension piece 5 are exactly the same structure and are installed in mirror images up and down; the thickness of the plate sample 1, the upper connecting piece 2 and the lower connecting piece 3 are consistent, so that they can be placed in the plate fixture of the creep lead-out rod; the upper connecting piece 2, the lower connecting piece 3, the upper extension piece docking portion 11, the lower extension piece docking portion 15, the extension piece connecting portion 42 and the lower extension piece connecting portion 52 are the same width in the left-right direction.

[0031] Before testing, the embodiment is installed, and the plate sample 1, the upper connecting piece 2, the upper extension piece 4, the lower connecting piece 3 and the lower extension piece 5 are connected and fixed with short bolts and nuts to achieve the purpose of extending the sample clamping end;

[0032] Install the connected and fixed embodiment into the creep lead-out rod, ensuring that the upper slot extension 43 and the upper lug 16 are inserted into the upper slot of the creep lead-out rod, and the lower slot extension 53 and the lower lug 17 are inserted into the lower slot of the creep lead-out rod;

[0033] Then use two bolts and nuts to connect and fix the waist-shaped holes of the upper connecting plate 2 and the lower connecting plate 3 to the upper and lower pin holes of the upper and lower connecting heads of the plate in the endurance testing machine;

[0034] Finally, tie the thermocouple, adjust the coaxiality, and complete the installation.

[0035] The temperature of the plate sample 1 to be tested is raised and the test is started.

Claims

1. A small plate sample extension auxiliary fixture assembly, characterized in that: include: A plate sample (1), an upper connecting piece (2), an upper extension piece (4), a lower connecting piece (3) and a lower extension piece (5), wherein the plate sample (1) comprises an upper extension piece docking portion (11), an upper gradually expanding portion (12), a detection portion (13), a lower gradually expanding portion (14) and a lower extension piece docking portion (15) which are fixedly connected in sequence, wherein both ends of the combined portion of the upper gradually expanding portion (12) and the detection portion (13) are fixedly connected to each other with an upper lug (16), and both ends of the combined portion of the detection portion (13) and the lower gradually expanding portion (14) are fixedly connected to each other with a lower lug (17), an upper sample connecting hole (19) is formed on the upper gradually expanding portion (12), and a lower sample connecting hole (18) is formed on the lower gradually expanding portion (14), and the axes of the upper sample connecting hole (19) and the lower sample connecting hole (18) are both located on the vertical symmetry line of the plate sample (1); The upper connecting piece (2) and the lower connecting piece (3) are a pair of rectangular connecting pieces with completely identical external dimensions, and are installed in mirror images. The upper connecting piece (2) and the lower connecting piece (3) are each provided with a through hole and a waist-shaped hole. The waist-shaped hole of the upper connecting piece (2) is connected to the upper connecting head of the plate of the endurance testing machine through bolts, and the waist-shaped hole of the lower extension piece (5) is connected to the lower connecting head of the plate of the endurance testing machine through bolts. The upper extension piece (4) comprises an upper extension piece connecting portion (42), an upper extension piece gradually expanding portion (41) and an upper slot extending portion (43) which are fixedly connected in sequence. The shape of the upper extension piece gradually expanding portion (41) is the same as that of the upper gradually expanding portion (12). The width of the upper extension piece connecting portion (42) is the same as that of the upper connecting piece (2). The width of the upper slot extending portion (43) in the left-right direction is equal to the distance between the outer ends of the two upper lugs (16). The thickness of the upper slot extending portion (43) in the upper-lower direction is the same as that of the upper lugs (16) so that the upper slot extending portion (43) can be inserted into the upper slot of the creep lead-out rod together. A through hole is formed on the upper extension piece gradually expanding portion (41) and the upper extension piece connecting portion (42); the through hole on the upper extension piece gradually expanding portion (41) is connected to the connecting hole (19) on the sample piece by a bolt, and the through hole on the upper extension piece connecting portion (42) is connected to the through hole of the lower connecting piece (3); The lower extension piece (5) comprises a lower extension piece connecting portion (52), a lower extension piece gradually expanding portion (51) and a lower slot extending portion (53) which are fixedly connected in sequence; the shape of the lower extension piece gradually expanding portion (51) is the same as that of the lower gradually expanding portion (14); the width of the lower extension piece connecting portion (52) is the same as that of the lower connecting piece (3); the width of the lower slot extending portion (53) in the left-right direction is equal to the distance between the outer ends of the two lower lugs (17); the thickness of the lower slot extending portion (53) in the upper-lower direction is the same as that of the lower lugs (17) so that the lower slot extending portion (53) can be inserted into the lower slot of the creep lead-out rod together; A through hole is formed on the gradually expanding portion (51) of the lower extension piece and the connecting portion (52) of the lower extension piece. The through hole on the gradually expanding portion (51) of the lower extension piece is connected to the lower connecting hole (18) of the sample piece by a bolt, and the through hole on the connecting portion (52) of the lower extension piece is connected to the through hole of the upper connecting piece (2).

2. The small plate sample extension auxiliary fixture assembly according to claim 1, characterized in that: The upper extension piece (4) and the lower extension piece (5) have exactly the same structure and are installed in mirror-image fashion.

3. A small plate sample extension auxiliary fixture assembly according to claim 1 or 2, characterized in that: The plate sample (1), the upper connecting piece (2) and the lower connecting piece (3) have the same thickness.

4. The small plate sample extension auxiliary fixture assembly according to claim 1, characterized in that: The plate sample (1), the upper connecting piece (2), the upper extension piece (4), the lower connecting piece (3) and the lower extension piece (5) are bilaterally symmetrical.

5. The small plate sample extension auxiliary fixture assembly according to claim 1, characterized in that: The lower end surface of the upper connecting piece (2) is in contact with the upper end surface of the upper extension piece docking portion (11), and the upper end surface of the lower connecting piece (3) is in contact with the lower end surface of the lower extension piece docking portion (15).

6. The small plate sample extension auxiliary fixture assembly according to claim 1, characterized in that: The widths of the upper connecting piece (2), the lower connecting piece (3), the upper extended piece docking portion (11), the lower extended piece docking portion (15), the extended piece connecting portion (42) and the lower extended piece connecting portion (52) are equal.

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