Flexible testing machine pressure head auxiliary positioning device

Abstract

The invention relates to the technical field of positioners, and provides a flexible testing machine pressure head auxiliary positioning device, the testing machine pressure head auxiliary positioning device is installed on a testing machine pressure head, the testing machine pressure head comprises a bottom plate, a side plate, a spherical hinge and a pressure rod, the side plate and the bottom plate are connected to form a rigid whole, the pressure rod and the side plate are connected through the spherical hinge, and the pressure rod is connected with the side plate through the spherical hinge. The auxiliary positioning device for the pressure head of the testing machine is characterized in that a spherical hinge is arranged on the rigid whole, the rigid whole and the pressure rod can rotate relatively through the spherical hinge, the auxiliary positioning device for the pressure head of the testing machine is installed below the pressure rod, a ratchet tooth structure is arranged on the auxiliary positioning device for the pressure head of the testing machine, the ratchet tooth structure is matched with the pressure rod in an abutting mode, and the ratchet tooth structure can prevent the pressure rod from rotating. Compared with the prior art, the flexible auxiliary positioning device for the pressure head of the testing machine has the advantages that the pressure head of the testing machine can be prevented from rotating unnecessarily in the testing process, and the testing accuracy and the working efficiency are improved.

Description

Technical Field

[0001] The invention relates to the technical field of positioners, and in particular to a flexible testing machine pressure head auxiliary positioning device. Background Art

[0002] The electro-hydraulic servo testing machine (hereinafter referred to as the testing machine) for testing the static and dynamic load-bearing performance of engineering structural parts is an important testing equipment for testing the service performance of non-standard structural parts in the marine engineering field. Since the shapes, sizes and testing requirements of various engineering structural parts are different, the structure of the testing machine for testing non-standard structural parts is also different from that of the standard material testing machine, especially in the pressure head part.

[0003] The pressure head structure of the testing machine for testing non-standard structural parts is as follows Figure 1 As shown, it includes a bottom plate 1, a side plate 2, a ball joint 3 and a pressure rod (actuator) 6. The side plate 2 and the bottom plate 1 are connected by bolts to form a rigid whole, and the pressure rod 6 and the side plate 2 are connected by a ball joint 3. The ball joint 3 allows the rigid whole formed by the side plate 2 and the bottom plate 1 to rotate relative to the pressure rod 6 to meet the different testing requirements of different parts of non-standard structural parts. However, not all non-standard structural parts require the testing machine pressure head to be able to rotate relative to each other, but require the testing machine pressure head to remain relatively fixed during the entire test process. However, due to the flexibility of the ball joint, it is difficult to achieve this. Each time the ball joint rotates, it needs to be repositioned, which will increase the preparation time for the test and reduce the accuracy and work efficiency of the test.

[0004] In view of this, the present invention is proposed. Summary of the invention

[0005] The purpose of the present invention is to propose a flexible testing machine pressure head auxiliary positioning device to solve the problem in the prior art that not all non-standard structural parts require the testing machine pressure head to be able to rotate relative to each other, the testing machine pressure head lacks a positioning device, the ball joint is more flexible, and the testing machine pressure head is difficult to remain relatively fixed during the entire test process. Each time the ball joint rotates, it needs to be repositioned, which will increase the test preparation time and reduce the test accuracy and work efficiency.

[0006] To achieve the above object, the technical solution of the present invention is achieved as follows:

[0007] A flexible testing machine pressure head auxiliary positioning device, the testing machine pressure head auxiliary positioning device is installed on the testing machine pressure head, the testing machine pressure head comprises a bottom plate, a side plate, a ball joint and a pressure rod, the side plate is connected to the bottom plate to form a rigid whole, the pressure rod and the side plate are connected by the ball joint, and the ball joint can make the rigid whole and the pressure rod rotate relative to each other; the testing machine pressure head auxiliary positioning device is installed below the pressure rod, and a ratchet tooth structure is arranged on the testing machine pressure head auxiliary positioning device, the ratchet tooth structure abuts and cooperates with the pressure rod, and the ratchet tooth structure can prevent the pressure rod from rotating.

[0008] The flexible testing machine pressure head auxiliary positioning device described in the present invention can prevent the testing machine pressure head from rotating unnecessarily during the test, thereby achieving the purpose of positioning the testing machine pressure head and improving the accuracy and work efficiency of the test.

[0009] Furthermore, the testing machine pressure head auxiliary positioning device includes a first locator structure and a second locator structure, and the first locator structure and the second locator structure are symmetrically installed under the pressure rod; the ratchet tooth structure includes a first ratchet tooth and a second ratchet tooth, and the first ratchet tooth is arranged on the first locator structure, and the second ratchet tooth is arranged on the second locator structure.

[0010] Furthermore, the first locator structure includes a first locator body, a first mounting groove is arranged on the first locator body, and the first ratchet tooth is arranged at the bottom of the first mounting groove; the second locator structure includes a second locator body, a second mounting groove is arranged on the second locator body, and the second ratchet tooth is arranged at the bottom of the second mounting groove.

[0011] Furthermore, the first mounting groove and the second mounting groove cooperate to form an arc groove, the bottom end of the pressure rod is set as an arc surface, and the arc groove cooperates with the arc surface of the bottom end of the pressure rod.

[0012] Furthermore, the first locator structure is detachably connected to the second locator structure.

[0013] Furthermore, a first mounting hole is set on the first locator body, and a second mounting hole is set on the second locator body. The second mounting hole matches the first mounting hole, and a connecting member passes through the second mounting hole and the first mounting hole to connect the first locator structure and the second locator structure together.

[0014] Furthermore, a fastener is installed on the connecting piece, and the fastener matches the connecting piece.

[0015] Furthermore, side panels are installed on both sides above the base plate, the first locator structure and the second locator structure are symmetrically installed above the base plate, the bottom surfaces of the first locator structure and the second locator structure are abutted against the base plate, and the side surfaces of the first locator structure and the second locator structure are abutted against the two side panels.

[0016] Furthermore, the number of the first mounting holes and the number of the second mounting holes are both four.

[0017] Furthermore, the connecting piece is a bolt, and the fastening piece is a nut.

[0018] The present invention proposes a flexible testing machine pressure head auxiliary positioning device. Compared with the prior art, the flexible testing machine pressure head auxiliary positioning device of the present invention has the following beneficial effects:

[0019] 1) The flexible testing machine pressure head auxiliary positioning device described in the present invention is to install the testing machine pressure head auxiliary positioning device after the rigid whole composed of the bottom plate and the side plate is rotated to the required angle or position through the ball joint according to the testing requirements of the specific structural parts; the testing machine pressure head auxiliary positioning device is abutted and matched with the bottom plate, the side plate and the pressure rod, and after tightening and assembling, the ratchet tooth structure on the inner side of the arc groove is engaged with the arc surface at the bottom end of the pressure rod to achieve the purpose of positioning the testing machine pressure head, prevent the testing machine pressure head from rotating unnecessarily during the test, and improve the accuracy and work efficiency of the test.

[0020] 2) The flexible testing machine pressure head auxiliary positioning device described in the present invention is composed of only two positioners and four bolts, and has a simple structure and low cost.

[0021] 3) The flexible testing machine pressure head auxiliary positioning device described in the present invention is easy to operate, simple to install and has good positioning effect.

[0022] 4) The flexible testing machine pressure head auxiliary positioning device described in the present invention can restore the flexible rotation function of the testing machine pressure head by removing the testing machine pressure head auxiliary positioning device when the testing machine pressure head does not need to be positioned, and can meet the testing requirements of most non-standard structural parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the side view structure of the testing machine pressure head according to an embodiment of the present invention;

[0024] Figure 2 This is one of the schematic diagrams of the installation structure of a flexible testing machine pressure head auxiliary positioning device and a testing machine pressure head according to an embodiment of the present invention;

[0025] Figure 3This is a second schematic diagram of the installation structure of a flexible testing machine pressure head auxiliary positioning device and a testing machine pressure head according to an embodiment of the present invention;

[0026] Figure 4 It is a structural schematic diagram of a flexible testing machine pressure head auxiliary positioning device according to an embodiment of the present invention;

[0027] Figure 5 A schematic structural diagram of a first positioner structure of a flexible testing machine pressure head auxiliary positioning device according to an embodiment of the present invention;

[0028] Figure 6 The present invention is a schematic cross-sectional view of a flexible auxiliary positioning device for a testing machine pressure head according to an embodiment of the present invention.

[0029] Description of reference numerals:

[0030] 1. Bottom plate; 2. Side plate; 3. Ball joint; 4. First positioner structure; 401. First positioner body; 4011. First mounting hole; 4012. First mounting groove; 4013. First ratchet tooth; 402. Fastener; 5. Second positioner structure; 501. Second positioner body; 5011. Second mounting hole; 5012. Second mounting groove; 5013. Second ratchet tooth; 502. Connector; 6. Pressure rod. DETAILED DESCRIPTION

[0031] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. The descriptions of "first", "second", etc. mentioned in the embodiments of the present invention are only for descriptive purposes, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0032] The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0033] Example 1

[0034] In the prior art, not all non-standard structural parts require the testing machine pressure head to be able to rotate relative to each other. The testing machine pressure head lacks a positioning device. The ball joint 3 is relatively flexible, and it is difficult for the testing machine pressure head to remain relatively fixed during the entire test process. Each time the ball joint 3 rotates, it needs to be repositioned, which increases the test preparation time and reduces the accuracy and work efficiency of the test. The testing machine pressure head cannot be accurately and flexibly positioned in the existing test process.

[0035] In response to the above problems, Figures 1 to 6 As shown, this embodiment proposes a flexible testing machine pressure head auxiliary positioning device, which is installed on the testing machine pressure head. The testing machine pressure head includes a bottom plate 1, a side plate 2, a ball joint 3 and a pressure rod 6. The side plate 2 is connected to the bottom plate 1 to form a rigid whole. The pressure rod 6 is connected to the side plate 2 through the ball joint 3. The ball joint 3 can make the rigid whole and the pressure rod 6 rotate relative to each other to meet the different testing requirements of different parts of non-standard structural parts. The testing machine pressure head auxiliary positioning device is installed below the pressure rod 6. A ratchet tooth structure is provided on the testing machine pressure head auxiliary positioning device. The ratchet tooth structure abuts and cooperates with the pressure rod 6. The ratchet tooth structure can prevent the pressure rod from rotating.

[0036] The flexible testing machine pressure head auxiliary positioning device described in this embodiment can prevent the pressure rod 6 from rotating during the test by abutting against the pressure rod 6 through the ratchet tooth structure, thereby preventing the testing machine pressure head from rotating unwantedly during the test, thereby achieving the purpose of positioning the testing machine pressure head and improving the accuracy and work efficiency of the test.

[0037] Specifically, the ratchet tooth structure abuts against the bottom end of the pressure rod 6 .

[0038] Specifically, the testing machine pressure head auxiliary positioning device includes a first locator structure 4 and a second locator structure 5, and the first locator structure 4 and the second locator structure 5 are symmetrically installed below the pressure rod 6; the ratchet tooth structure includes a first ratchet tooth 4013 and a second ratchet tooth 5013, and the first ratchet tooth 4013 is arranged on the first locator structure 4, and the second ratchet tooth 5013 is arranged on the second locator structure 5.

[0039] Specifically, the first locator structure 4 includes a first locator body 401, a first mounting groove 4012 is set on the first locator body 401, and the first ratchet tooth 4013 is set at the bottom of the first mounting groove 4012; the second locator structure 5 includes a second locator body 501, a second mounting groove 5012 is set on the second locator body 501, and the second ratchet tooth 5013 is set at the bottom of the second mounting groove 5012.

[0040] Specifically, the first mounting groove 4012 is arranged above the first locator body 401, and the second mounting groove 5012 is arranged above the second locator body 501. The first mounting groove 4012 and the second mounting groove 5012 cooperate to form an arc groove, and the bottom end of the pressure rod 6 is set as an arc surface. The arc groove cooperates with the arc surface of the bottom end of the pressure rod 6 to ensure accurate positioning.

[0041] Specifically, the first positioner structure 4 and the second positioner structure 5 are detachably connected.

[0042] This arrangement facilitates the installation and disassembly of the testing machine pressure head auxiliary positioning device, and improves the installation efficiency and disassembly efficiency of the testing machine pressure head auxiliary positioning device.

[0043] Specifically, a first mounting hole 4011 is set on the first locator body 401, and a second mounting hole 5011 is set on the second locator body 501. The second mounting hole 5011 cooperates with the first mounting hole 4011, and the connecting member 502 passes through the second mounting hole 5011 and the first mounting hole 4011 to connect the first locator structure 4 and the second locator structure 5 together.

[0044] Specifically, the number of the first mounting holes 4011 and the second mounting holes 5011 is not specifically limited.

[0045] The number of the first mounting hole 4011 and the number of the second mounting hole 5011 may be two, the number of the first mounting hole 4011 and the number of the second mounting hole 5011 may be four, but the present invention is not limited thereto.

[0046] More specifically, in this embodiment, the number of the first mounting holes 4011 and the number of the second mounting holes 5011 are both four, which can improve the installation stability of the first locator structure 4 and the second locator structure 5 .

[0047] Specifically, the fastener 402 is installed on the connecting member 502 , and the fastener 402 matches with the connecting member 502 .

[0048] Specifically, the connecting member 502 and the fastening member 402 are not specifically limited.

[0049] More specifically, in this embodiment, the connecting member 502 is a bolt, and the fastening member 402 is a nut.

[0050] Specifically, side plates 2 are installed on both sides above the base plate 1, the bottom surfaces of the first locator structure 4 and the second locator structure 5 are abutted against the base plate 1, and the side surfaces of the first locator structure 4 and the second locator structure 5 are abutted against the two side plates 2 to ensure the stable installation of the auxiliary positioning device of the testing machine pressure head.

[0051] Specifically, the pressure rod 6 is vertically installed above the bottom plate 1 , and the first positioner structure 4 and the second positioner structure 5 are symmetrically installed between the pressure rod 6 and the bottom plate 1 .

[0052] Specifically, the tops of the first locator structure 4 and the second locator structure 5 are abutted against the pressure rod 6 through the ratchet tooth structure, the bottoms of the first locator structure 4 and the second locator structure 5 are abutted against the bottom plate 1, and the side surfaces of the first locator structure 4 and the second locator structure 5 are abutted against the two side plates 2, to ensure the stable installation of the auxiliary positioning device of the testing machine pressure head.

[0053] The flexible testing machine pressure head auxiliary positioning device described in this embodiment, during installation, first, according to the test requirements of the specific structural parts, the rigid whole composed of the pressure head bottom plate 1 and the pressure head side plate 2 is rotated to the required angle or position through the ball joint 3, so as to facilitate the installation of the testing machine pressure head auxiliary positioning device; then the first locator structure 4 is installed from one side of the testing machine pressure head, and then the second locator structure 5 is installed from the other side of the testing machine pressure head, and finally the first locator structure 4 and the second locator structure 5 are fastened together through the connecting member 502 and the fastener 402; through the fastening assembly, the ratchet tooth structure at the bottom of the arc groove of the first locator structure 4 and the second locator structure 5 and the arc surface at the bottom end of the pressure rod 6 are engaged with each other, so as to achieve the purpose of anti-slip, anti-rotation and positioning of the testing machine pressure head, thereby improving the accuracy and work efficiency of the test. The flexible testing machine pressure head auxiliary positioning device described in this embodiment is easy to install and has a good positioning effect. When there is no need to position the testing machine pressure head, the positioning device described in the present invention can be removed to restore the flexible rotation function of the testing machine pressure head, which can meet the testing needs of most non-standard structural parts, improve testing capabilities and efficiency, and increase testing income by 20% to 30%.

[0054] The flexible testing machine pressure head auxiliary positioning device described in this embodiment can restore the flexible rotation function of the testing machine pressure head by removing the testing machine pressure head auxiliary positioning device when there is no need to position the testing machine pressure head, and can meet the testing requirements of most non-standard structural parts.

[0055] The auxiliary positioning device for the pressure head of the testing machine proposed in this embodiment effectively solves the problems of inaccurate positioning and insufficient flexibility of the pressure head of the testing machine in the prior art by means of abutment and cooperation between the ratchet gear structure and the pressure rod. The device not only improves the accuracy and work efficiency of the test, but also facilitates installation and disassembly, and has good practicality and application prospects.

[0056] Although the present invention is disclosed as above, the present invention is not limited thereto. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the scope defined by the claims.

Claims

1. A flexible testing machine pressure head auxiliary positioning device, characterized in that: The testing machine pressure head auxiliary positioning device is installed on the testing machine pressure head, and the testing machine pressure head comprises a bottom plate (1), a side plate (2), a ball joint (3) and a pressure rod (6); the side plate (2) is connected to the bottom plate (1) to form a rigid whole; the pressure rod (6) and the side plate (2) are connected via the ball joint (3); the ball joint enables the rigid whole and the pressure rod to rotate relative to each other; the testing machine pressure head auxiliary positioning device is installed below the pressure rod (6); a ratchet tooth structure is arranged on the testing machine pressure head auxiliary positioning device; the ratchet tooth structure abuts against the pressure rod (6); and the ratchet tooth structure can prevent the pressure rod (6) from rotating.

2. A flexible testing machine pressure head auxiliary positioning device according to claim 1, characterized in that: The testing machine pressure head auxiliary positioning device comprises a first positioner structure (4) and a second positioner structure (5), wherein the first positioner structure (4) and the second positioner structure (5) are symmetrically mounted below the pressure rod (6); the ratchet tooth structure comprises a first ratchet tooth (4013) and a second ratchet tooth (5013), wherein the first ratchet tooth (4013) is arranged on the first positioner structure (4), and the second ratchet tooth (5013) is arranged on the second positioner structure (5).

3. A flexible testing machine pressure head auxiliary positioning device according to claim 2, characterized in that: The first positioner structure (4) comprises a first positioner body (401), a first mounting groove (4012) is arranged on the first positioner body (401), and the first ratchet tooth (4013) is arranged at the bottom of the first mounting groove (4012); the second positioner structure (5) comprises a second positioner body (501), a second mounting groove (5012) is arranged on the second positioner body (501), and the second ratchet tooth (5013) is arranged at the bottom of the second mounting groove (5012).

4. A flexible testing machine pressure head auxiliary positioning device according to claim 3, characterized in that: The first mounting groove (4012) and the second mounting groove (5012) cooperate to form an arc groove, the bottom end of the pressure rod (6) is arranged as an arc surface, and the arc groove cooperates with the arc surface of the bottom end of the pressure rod (6).

5. A flexible testing machine pressure head auxiliary positioning device according to claim 3, characterized in that: The first positioner structure (4) and the second positioner structure (5) are detachably connected.

6. A flexible testing machine pressure head auxiliary positioning device according to claim 5, characterized in that: A first mounting hole (4011) is provided on the first positioner body (401), and a second mounting hole (5011) is provided on the second positioner body (501), the second mounting hole (5011) matches with the first mounting hole (4011), and a connecting member (502) passes through the second mounting hole (5011) and the first mounting hole (4011) to connect the first positioner structure (4) and the second positioner structure (5) together.

7. A flexible testing machine pressure head auxiliary positioning device according to claim 6, characterized in that: A fastener (402) is installed on the connecting member (502), and the fastener (402) matches the connecting member (502).

8. A flexible testing machine pressure head auxiliary positioning device according to claim 2, characterized in that: Side plates (2) are installed on both sides above the base plate (1); the first locator structure (4) and the second locator structure (5) are symmetrically installed above the base plate (1); the bottom surfaces of the first locator structure (4) and the second locator structure (5) are in abutment with the base plate (1); and the side surfaces of the first locator structure (4) and the second locator structure (5) are in abutment with the two side plates (2).

9. A flexible testing machine pressure head auxiliary positioning device according to claim 6, characterized in that: The number of the first mounting holes (4011) and the number of the second mounting holes (5011) are both four.

10. A flexible testing machine pressure head auxiliary positioning device according to claim 7, characterized in that: The connecting piece (502) is a bolt, and the fastening piece (402) is a nut.

Images