Water pipe tensile test fixture

Abstract

The present invention relates to a water pipe tensile test fixture, which includes a clamping seat, an upper chuck, and a lower chuck; at least one clamping block for clamping a workpiece is provided on the clamping seat; a clamping portion for clamping the water pipe is provided at the bottom of the upper chuck, and the shape of the clamping portion corresponds to the outer shape of the water pipe; the lower chuck is arranged at the bottom of the clamping seat. For the water pipe tensile test fixture of the present invention, the workpiece is clamped on the clamping seat by the clamping block, and then the upper chuck and the lower chuck are connected to a tensile device. Then, the clamping portion of the upper chuck is connected to the water pipe and clamps the water pipe. Then, the upper chuck is pulled by the waste device, and then the water pipe is pulled to test the tensile value of the water pipe; the shape of the clamping portion imitates the outer shape of the water pipe and clamps the water pipe, which does not affect the tensile test and makes the tensile result more accurate.

Description

Technical Field

[0001] The present invention relates to the technical field of tensile testing, and particularly to a water pipe tensile testing fixture. Background Art

[0002] Water pipes are processed and installed on some workpieces such as die-castings, and then a special fixture combined with a tensile device is required to conduct a tensile test on the water pipe; specifically, when in use, the upper chuck and the lower chuck of the fixture need to be installed on the tensile device. Generally, the lower chuck is fixedly arranged, and the upper chuck is connected to the water pipe. Then, the tensile device will pull the upper chuck, and further pull the water pipe to conduct a tensile test to detect whether the tensile value of the water pipe meets the requirements.

[0003] The chucks of the current fixtures cannot adapt to the shape of the water pipe, and clamping the water pipe with the chuck will deform the water pipe, resulting in inaccurate tensile test results. Summary of the Invention

[0004] Based on this, the purpose of the present invention is to overcome the defects and deficiencies in the prior art and provide a water pipe tensile testing fixture.

[0005] The water pipe tensile testing fixture includes a chuck base, an upper chuck, and a lower chuck;

[0006] At least one clamping block for clamping the workpiece is provided on the chuck base; a clamping portion for clamping the water pipe is provided at the bottom of the upper chuck, and the shape of the clamping portion corresponds to the outer shape of the water pipe; a first mounting hole is provided on the bottom surface of the upper chuck;

[0007] The lower chuck is arranged at the bottom of the chuck base;

[0008] It further includes a clamping member, and the clamping member is installed in the first mounting hole; a first connection hole is provided on the side surface of the upper chuck, and the first connection hole penetrates through the upper chuck and the clamping member; the axial direction of the first connection hole is perpendicular to the axial direction of the first mounting hole; the clamping portion is arranged at the bottom of the clamping member;

[0009] It further includes a connecting shaft, and the connecting shaft is inserted into the first connection hole and connects the upper chuck and the clamping member.

[0010] For the water pipe tensile testing fixture of the present invention, the workpiece is clamped on the chuck base by the clamping block, and then the upper chuck and the lower chuck are connected to the tensile device. Then, the clamping portion of the upper chuck is connected to the water pipe and clamps the water pipe. Then, the upper chuck is pulled by the tensile device, and further the water pipe is pulled to test the tensile value of the water pipe; the shape of the clamping portion imitates the outer shape of the water pipe and clamps the water pipe, without affecting the tensile test and making the tensile result more accurate.

[0011] The beneficial effect of adopting the above further solution is that by setting the clamping member and realizing the detachable connection between the clamping member and the upper chuck through the connecting shaft, when installing, the upper chuck can be first installed on the tension device, then the clamping member can clamp the water pipe, and then the upper chuck and the clamping member can be installed, improving the installation efficiency and convenience.

[0012] Further, a first clamping hole is provided on the bottom surface of the clamping member; the clamping portion is an inverted buckle, and the inverted buckle is arranged around the circumference of the first clamping hole at the opening edge of the clamping hole.

[0013] The beneficial effect of adopting the above further solution is that since the side of the water pipe is provided with an installation inverted buckle, by setting the clamping portion as an inverted buckle, the water pipe can be directly inserted into the first clamping hole, so that the inverted buckles are buckled with each other, thereby realizing the clamping of the water pipe, and making the first clamping hole correspond to the outer shape of the water pipe, and at the same time, the water pipe will not be deformed, which does not affect the tensile test and makes the tensile result more accurate.

[0014] Further, a second clamping hole is provided on the bottom surface of the clamping member, and the second clamping hole is coaxially arranged with the first clamping hole; the diameter of the second clamping hole is larger than the diameter of the first clamping hole, and the clamping portion is arranged at the opening edge of the second clamping hole.

[0015] The beneficial effect of adopting the above further solution is that by setting the second clamping expansion with a larger diameter, the installation inverted buckle of the water pipe can be accommodated, making the first clamping hole and the second clamping hole more conform to the outer shape of the water pipe, and thus the water pipe will not be deformed.

[0016] Further, the outer side surface of the clamping member fits with the inner wall of the first installation hole, and the inner wall of the first installation hole has a draft angle.

[0017] The beneficial effect of adopting the above further solution is that the inner wall of the first installation hole has a draft angle, and the outer side surface of the clamping member is also an inclined surface, so it is convenient to install the clamping member into the first installation hole, and at the same time, it is convenient to take out the clamping member during disassembly.

[0018] Further, there are two clamping blocks; mounting seats are provided at both ends of the clamping seat, and bolt holes are provided on the mounting seats;

[0019] It also includes two bolts. The clamping blocks are provided with long slots. The bolts pass through the long slots of the corresponding clamping blocks and are threadedly connected with the bolt holes, and press the corresponding clamping blocks; the clamping blocks and the clamping seat press the workpiece.

[0020] The beneficial effect of adopting the above further solution is that by pressing the clamping blocks with bolts, the structure is simple and easy to implement; the clamping blocks are provided with long slots, which can facilitate the adjustment of the positions of the clamping blocks, so that the clamping blocks can better clamp the workpiece with the clamping seat.

[0021] Further, two bolt holes are provided on the mounting seat.

[0022] The beneficial effect of adopting the above further solution is that there are two bolt holes on the clamping seat, which can further cooperate with the long slot of the clamping block to adjust the position of the clamping block.

[0023] Furthermore, the lower chuck is detachably arranged at the bottom of the clamping seat.

[0024] The beneficial effect of adopting the above further solution is that the lower chuck is detachably arranged at the bottom of the clamping seat, which can facilitate the replacement of the lower chuck and the installation of the lower chuck and the clamping seat.

[0025] Furthermore, a perforation is provided on the top surface of the clamping seat, and an installation groove is provided at the edge of the top opening of the perforation; a baffle is provided on the top of the lower chuck, and the lower chuck passes through the perforation, and the baffle is arranged in the installation groove.

[0026] The beneficial effect of adopting the above further solution is that the lower chuck passes through the perforation and the baffle is arranged in the installation groove, realizing the quick detachable connection between the lower chuck and the clamping seat.

[0027] Furthermore, a second connection hole is provided on the side surface of the lower chuck, and the axial direction of the second connection hole is perpendicular to the axial direction of the lower chuck.

[0028] The beneficial effect of adopting the above further solution is that a second connection hole is provided on the side surface of the lower chuck, which can facilitate the connection between the lower chuck and the tension device.

[0029] For better understanding and implementation, the present invention will be described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 is a schematic structural view of the water pipe tension test fixture of the present invention;

[0031] Figure 2 is a schematic structural view of the clamping seat of the present invention;

[0032] Figure 3 is a schematic working view of the water pipe tension test fixture of the present invention;

[0033] Figure 4 is a schematic sectional structural view of the water pipe tension test fixture of the present invention;

[0034] Figure 5 is Figure 4 a partial enlarged view of A in

[0035] In the figure: 10, clamping seat; 11, mounting seat; 111, bolt hole; 12, perforation; 13, mounting groove; 20, upper chuck; 21, first mounting hole; 22, clamping member; 221, clamping portion; 222, first clamping hole; 223, second clamping hole; 23, first connection hole; 30, lower chuck; 31, baffle; 32, second connection hole; 40, clamping block; 41, long slot; 50, bolt; 60, workpiece; 61, water pipe. Detailed implementation manner

[0036] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0037] It should be understood that in the description of the present application, the orientation or positional relationship indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to the present application. The terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features, that is, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In addition, unless otherwise specified, the meaning of "plurality" is two or more.

[0038] It should be noted that in the description of the present application, unless otherwise clearly defined and limited, the terms "set", "connected", "connected", "hollow" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific situations.

[0039] Please refer to Figures 1 to 5 , the water pipe tensile test fixture of this embodiment includes a clamping seat 10, an upper chuck 20, a lower chuck 30, a clamping member 22, a connecting shaft (not shown in the figure), two bolts 50, and a workpiece 60;

[0040] Specifically, a water pipe 61 is provided on the top surface of the workpiece 60, and a mounting undercut is provided on the water pipe 61;

[0041] Specifically, the clamping seat 10 is provided with two clamping blocks 40 for clamping the workpiece 60;

[0042] More specifically, mounting seats 11 are provided at both ends of the clamping seat 10, and bolt holes 111 are provided on the mounting seats 11;

[0043] The clamp block 40 is provided with a long slot 41, and the bolt 50 passes through the long slot 41 of the corresponding clamp block 40 and is threadedly connected with the bolt hole 111, and presses the corresponding clamp block 40; the clamp block 40 and the clamp seat 10 press the two ends of the workpiece 60;

[0044] More specifically, the mounting base 11 is provided with two bolt holes 111 , and the user can install the bolt 50 into a suitable bolt hole 111 according to actual conditions.

[0045] Specifically, the bottom of the upper clamp 20 is provided with a clamping portion 221 for clamping the water pipe 61, and the shape of the clamping portion 221 corresponds to the shape of the water pipe 61;

[0046] More specifically, the bottom surface of the upper clamp 20 is provided with a first mounting hole 21; the clamping member 22 is installed in the first mounting hole 21; the side surface of the upper clamp 20 is provided with a first connecting hole 23, the first connecting hole 23 passes through the upper clamp 20 and the clamping member 22; the axial direction of the first connecting hole 23 is perpendicular to the axial direction of the first mounting hole 21; the clamping portion 221 is arranged at the bottom of the clamping member 22;

[0047] More specifically, the connecting shaft is inserted into the first connecting hole 23 and connected to the upper clamp 20 and the clamping member 22;

[0048] More specifically, the bottom surface of the clamping member 22 is provided with a first clamping hole 222; the clamping portion 221 is an undercut, and the undercut surrounds the circumference of the first clamping hole 222 and is arranged at the opening edge of the clamping hole;

[0049] In the preferred embodiment, the bottom surface of the clamping member 22 is provided with a second clamping hole 223, and the second clamping hole 223 is coaxially arranged with the first clamping hole 222; the diameter of the second clamping hole 223 is larger than the diameter of the first clamping hole 222, and the clamping portion 221 is arranged at the opening edge of the second clamping hole 223;

[0050] In the preferred embodiment, the outer side surface of the clamping member 22 is in contact with the inner wall of the first mounting hole 21 , and the inner wall of the first mounting hole 21 has a draft angle.

[0051] Specifically, the lower clamp 30 is arranged at the bottom of the clamp seat 10;

[0052] More specifically, the lower chuck 30 is detachably provided at the bottom of the chuck base 10;

[0053] More specifically, a through hole 12 is provided on the top surface of the chuck base 10, and an installation groove 13 is provided at the edge of the top opening of the through hole 12; a baffle 31 is provided at the top of the lower chuck 30, the lower chuck 30 passes through the through hole 12, and the baffle 31 is arranged in the installation groove 13;

[0054] More specifically, a second connection hole 32 is provided on the side surface of the lower chuck 30, and the axial direction of the second connection hole 32 is perpendicular to the axial direction of the lower chuck 30.

[0055] The working process of this embodiment:

[0056] Install the upper chuck 20 onto a tensile device (not shown in the figure); then install it onto the tensile device by using the second connection hole 32 of the lower chuck 30;

[0057] Furthermore, place the workpiece 60 on the chuck base 10, and fix the clamping block 40 with bolts 50, so that the clamping block 40 cooperates with the chuck base 10 to clamp both ends of the workpiece 60; furthermore, put the first clamping hole 222 and the second clamping hole 223 of the clamping member 22 onto the water pipe 61, so that the water pipe 61 is reversely buckled with the clamping portion 221, and then install the clamping member 22 into the first installation hole 21 of the upper chuck 20, and use a connecting shaft to pass through the first connection hole 23 to complete the installation of the clamping member 22 and the upper chuck 20;

[0058] Furthermore, start the tensile device, so that the tensile device pulls the upper chuck 20, and then pulls the water pipe 61 to detect the tensile value of the water pipe 61.

[0059] Compared with the prior art, in the present invention, the shape of the clamping portion imitates the outer shape of the water pipe and clamps the water pipe, which does not affect the tensile test and makes the tensile result more accurate;

[0060] In addition, the present invention also has the following beneficial effects: by providing a clamping member and realizing the detachable connection between the clamping member and the upper chuck through a connecting shaft, during installation, the upper chuck can be first installed onto the tensile device, then the clamping member clamps the water pipe, and then the upper chuck and the clamping member are installed, which improves the installation efficiency and convenience;

[0061] Since the side of the water pipe is provided with an installation reverse buckle, by setting the clamping portion in the form of a reverse buckle, the water pipe can be directly inserted into the first clamping hole, so that the reverse buckles are buckled with each other, thereby realizing the clamping of the water pipe, and making the first clamping hole correspond to the outer shape of the water pipe, and at the same time not deforming the water pipe, not affecting the tensile test, and making the tensile result more accurate;

[0062] By providing a second clamping expansion with a larger diameter, the installation buckle of the water pipe can be accommodated, so that the first clamping hole and the second clamping hole are more closely fitted to the shape of the water pipe, thereby preventing the water pipe from being deformed;

[0063] The inner wall of the first mounting hole has a draft angle, and the outer side surface of the clamping piece is also an inclined surface, so it is convenient to install the clamping piece into the first mounting hole and to take out the clamping piece when disassembling;

[0064] The clamp block is tightened by bolts, which has a simple structure and is easy to implement; a long groove is provided on the clamp block, which can facilitate the adjustment of the position of the clamp block so that the clamp block can better clamp the workpiece with the clamp seat;

[0065] The clamp seat is provided with two bolt holes, which can further cooperate with the long slot of the clamp block to adjust the position of the clamp block;

[0066] The lower clamp is detachably arranged at the bottom of the clamp seat, so that the lower clamp can be easily replaced and the lower clamp and the clamp seat can be easily installed;

[0067] The lower clamp passes through the through hole, and the baffle is arranged in the mounting groove, so as to realize a quick and detachable connection between the lower clamp and the clamp seat;

[0068] A second connecting hole is provided on the side of the lower clamp, which can facilitate the connection between the lower clamp and the tension device.

[0069] The above-mentioned embodiments only express several implementation methods of the present invention, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the invention patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. Water pipe tensile test fixture, characterized in that including a clamping seat (10) provided with at least one clamping block (40) for clamping a workpiece (60); an upper chuck (20) having a clamping portion (221) at the bottom for clamping a water pipe (61), the shape of the clamping portion (221) corresponding to the outer shape of the water pipe (61); the bottom surface of the upper chuck (20) is provided with a first mounting hole (21); a lower chuck (30) disposed at the bottom of the clamping seat (10); further including a clamping member (22) installed in the first mounting hole (21); a first connection hole (23) is provided on the side surface of the upper chuck (20), and the first connection hole (23) passes through the upper chuck (20) and the clamping member (22); the axial direction of the first connection hole (23) is perpendicular to the axial direction of the first mounting hole (21); the clamping portion (221) is disposed at the bottom of the clamping member (22); further including a connecting shaft inserted into the first connection hole (23) to connect the upper chuck (20) and the clamping member (22).

2. The water pipe tensile test fixture according to claim 1, characterized in that, The bottom surface of the clamping member (22) is provided with a first clamping hole (222); the clamping portion (221) is an inverted buckle, and the inverted buckle is disposed around the circumferential direction of the first clamping hole (222) at the opening edge of the clamping hole.

3. The water pipe tensile test fixture according to claim 2, characterized in that, The bottom surface of the clamping member (22) is provided with a second clamping hole (223), and the second clamping hole (223) is coaxially arranged with the first clamping hole (222); the diameter of the second clamping hole (223) is larger than the diameter of the first clamping hole (222), and the clamping portion (221) is disposed at the opening edge of the second clamping hole (223).

4. The water pipe tensile test fixture according to claim 2, wherein, The outer side surface of the clamping member (22) fits with the inner wall of the first mounting hole (21), and the inner wall of the first mounting hole (21) has a draft angle.

5. The water pipe tensile test fixture according to any one of claims 1 to 4, characterized in that, There are two clamping blocks (40); mounting seats (11) are provided at both ends of the clamping seat (10), and bolt holes (111) are provided on the mounting seats (11); further including two bolts (50), the clamping blocks (40) are provided with long slots (41), and the bolts (50) pass through the long slots (41) of the corresponding clamping blocks (40) and are threadedly connected to the bolt holes (111) to press the corresponding clamping blocks (40); the clamping blocks (40) and the clamping seat (10) press the workpiece (60).

6. The water pipe tensile test fixture according to claim 5, wherein There are two bolt holes (111) on the mounting seat (11).

7. The water pipe tensile test fixture according to claim 6, wherein, The lower chuck (30) is detachably disposed at the bottom of the clamping seat (10).

8. The water pipe tensile test fixture according to claim 7, characterized in that A through hole (12) is provided on the top surface of the clamping seat (10), and a mounting groove (13) is provided at the opening edge of the top of the through hole (12); a baffle (31) is provided at the top of the lower chuck (30), and the lower chuck (30) passes through the through hole (12), and the baffle (31) is disposed in the mounting groove (13).

9. The water pipe tensile test fixture according to claim 8, wherein, A second connection hole (32) is provided on the side surface of the lower chuck (30), and the axial direction of the second connection hole (32) is perpendicular to the axial direction of the lower chuck (30).

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