Tensile testing machine load verification connection tooling

Abstract

The present invention relates to a load verification connection tool for a tensile testing machine, and belongs to the technical field of tensile sensors. The present invention includes an upper conversion joint, a load sensor and a lower conversion joint, and also includes an anti-collision mechanism, the anti-collision mechanism includes a connector and a transition joint, the connector includes a connection body, and upper and lower threads at the upper and lower ends of the connection body, the connection body is connected to the other end of the load sensor through the upper thread; the transition joint includes an adapter housing, the adapter housing is equipped with a spring, and the spring moves up and down along a buffer slideway provided in the adapter housing; the lower conversion joint is located in the buffer slideway of the adapter housing and below the spring, the lower conversion joint includes a built-in adapter, and integrated positioning pins located at both ends of the built-in adapter, the integrated positioning pins move up and down along the positioning grooves on both sides of the buffer slideway. The present invention adds an anti-collision mechanism to improve the anti-impact compression capability of the load sensor.

Description

Technical Field

[0001] The invention relates to a load checking connection tool for a tension testing machine, belonging to the technical field of tension sensors. Background Art

[0002] At present, various material strength tests are carried out using electronic tensile testing machines. The load sensors on the testing machines monitor and record the load changes of the materials during the stretching process. Therefore, it is necessary to regularly check and monitor the load sensors of the testing machines to see if they are accurate and available.

[0003] The load sensors of the tensile testing machine are divided into tension type, compression type, and tension compression type. They are purchased according to the use requirements. In general, the tension type is used, that is, the sensor cannot be subjected to impact compression. At present, the more accurate verification tool is the load sensor with higher accuracy, but there is no sensor connection tooling matching the verification requirements on the market. Summary of the invention

[0004] In view of the above-mentioned defects in the prior art, the present invention proposes a load verification connection tooling for a tensile testing machine, which adds an anti-collision mechanism and improves the anti-impact compression capability of the load sensor.

[0005] The load verification connection tooling of the tensile testing machine described in the present invention includes an upper conversion joint, a load sensor and a lower conversion joint. The upper conversion joint is threadedly connected to one end of the load sensor, and also includes an anti-collision mechanism. The anti-collision mechanism includes a connecting head and a transition joint. The connecting head includes a connecting body, and upper and lower threads at the upper and lower ends of the connecting body. The connecting body is connected to the other end of the load sensor through the upper thread; the transition joint includes an adapter shell, the adapter shell is equipped with a spring, and the spring moves up and down along a buffer slide opened in the adapter shell; the lower conversion joint is located in the buffer slide of the adapter shell and below the spring, the lower conversion joint includes a built-in adapter, and integrated positioning pins located at both ends of the built-in adapter, and the integrated positioning pins move up and down along the positioning grooves on both sides of the buffer slide.

[0006] Preferably, the upper conversion joint includes a conversion joint body and a connecting thread located below the conversion joint body, and the conversion joint body is connected to the load sensor through the connecting thread; the conversion joint body is provided with a positioning pin hole, and a positioning pin is inserted into the positioning pin hole, and the upper conversion joint is connected to the tensile testing machine sensor; the tensile testing machine sensor is connected in series with the load sensor through the upper conversion joint.

[0007] Preferably, the positioning grooves are symmetrical openings on both sides of the buffer slide, and the positioning grooves are used for guiding and limiting with the integrated positioning pins.

[0008] Preferably, a lower conversion joint, a spring and a connector are placed in sequence from bottom to top in the transition joint, and the spring is compressed in a buffer slideway formed between the lower conversion joint and the connector.

[0009] Preferably, the built-in adapter size of the lower conversion joint is consistent with the interface size of the load sensor, and is connected to the transition joint by threads. The transition joint has a built-in spring and buffer slides on both sides for buffering and anti-collision. The connecting head is connected to the transition joint through an integrated locating pin, and is connected to the tensile testing machine through a locating pin hole below.

[0010] Preferably, when the connecting tooling is subjected to an external force, the lower conversion joint drives the spring to move toward the connecting head along the buffer slide; after the external force is removed, the spring drives the lower conversion joint downward to return to its original position through the restoring force.

[0011] The beneficial effects of the present invention are as follows: the load verification connection fixture for the tensile testing machine described in the present invention solves the problem that the load sensors currently purchased cannot verify the load of the tensile testing machine due to the lack of available connection fixtures with the tensile testing machine; and solves the unexpected situations that may occur during the verification process, where the equipment beam moves down too quickly, causing the load sensor to be impacted and damaged. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the present invention.

[0013] Figure 2 It is a schematic diagram of the structure of the up-conversion connector.

[0014] Figure 3 It is a schematic diagram of the structure of the connector.

[0015] Figure 4 It is a structural diagram of a transition joint.

[0016] Figure 5 It is a structural schematic diagram of the lower conversion joint.

[0017] In the figure: 1. upper conversion joint; 11. conversion joint body; 12. connecting thread;

[0018] 2. Load sensor;

[0019] 3. Connector; 31. Upper thread; 32. Connector body; 33. Lower thread;

[0020] 4. Transition joint; 41. Adapter housing; 42. Spring; 43. Buffer slide;

[0021] 5. Lower conversion connector; 51. Built-in conversion connector; 52. Integrated positioning pin. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] Embodiment 1:

[0024] like Figure 1 As shown, the load verification connection tooling for the tensile testing machine of the present invention comprises an upper conversion joint 1, a load sensor 2 and a lower conversion joint 5, wherein the upper conversion joint 1 is threadedly connected to one end of the load sensor 2.

[0025] like Figure 2 As shown, the upper conversion joint 1 includes a conversion joint body 11 and a connecting thread 12 located below the conversion joint body 11, and the conversion joint body 11 is connected to the load sensor 2 through the connecting thread 12; the conversion joint body 11 is provided with a positioning pin hole, and a positioning pin is inserted into the positioning pin hole, and the upper conversion joint 1 is connected to the tensile testing machine sensor; the tensile testing machine sensor is connected in series with the load sensor 2 through the upper conversion joint 1.

[0026] The present invention also includes an anti-collision mechanism, which includes a connector 3 and a transition joint 4.

[0027] like Figure 3 As shown, the connector 3 includes a connecting body 32, and an upper thread 31 and a lower thread 33 at the upper and lower ends of the connecting body 32, and the connecting body 32 is connected to the other end of the load sensor 2 through the upper thread 31; the transition joint 4 includes an adapter shell 41, and the adapter shell 41 has a spring 42 built in, and the spring 42 moves up and down along a buffer slide 43 opened in the adapter shell 41; the lower conversion joint 5 is located in the buffer slide 43 of the adapter shell 41 and below the spring 42, and the lower conversion joint 5 includes a built-in adapter 51, and an integrated positioning pin 52 located at both ends of the built-in adapter 51, and the integrated positioning pin 52 moves up and down along the positioning grooves on both sides of the buffer slide 43.

[0028] like Figure 4 As shown, the positioning grooves are symmetrical openings on both sides of the buffer slide 43 , and the positioning grooves are used for guiding and limiting with the integral positioning pins 52 .

[0029] The lower conversion joint 5 , the spring 42 and the connector 3 are sequentially placed in the transition joint 4 from bottom to top, and the spring 42 is compressed in the buffer slide 43 formed between the lower conversion joint 5 and the connector 3 .

[0030] like Figure 5As shown, the size of the built-in adapter 51 of the lower conversion joint 5 is consistent with the interface size of the load sensor 2, and is connected to the transition joint 4 by threads. The transition joint 4 has a built-in spring 42 and buffer slides 43 on both sides for buffering and anti-collision. The connector 3 is connected to the transition joint 4 through an integrated locating pin 52, and is connected to the tensile testing machine through a locating pin hole below.

[0031] When the connecting tooling is subjected to an external force, the lower conversion joint 5 drives the spring 42 to move toward the connecting head 3 along the buffer slide 43; after the external force is removed, the spring 42 drives the lower conversion joint 5 to return to its original position downward through the restoring force.

[0032] The purpose of the present invention is to solve the technical deficiencies of the existing equipment functions and to use the load sensor 2 available on the market for load verification of the tensile testing machine. In order to achieve the above purpose, the technical solution adopted by the present invention is: the tensile testing machine sensor and the load sensor 2 are connected in series through a connecting tool, and an anti-collision mechanism is arranged between them.

[0033] Upper conversion joint 1: The size of the upper conversion joint 1 is consistent with the size of the connector 3 of the load sensor 2. The tensile testing machine sensor is connected to the upper conversion joint 1 through a positioning pin hole (inserting the positioning pin), and the upper conversion joint 1 is connected to the load sensor 2 through a threaded connection;

[0034] Lower conversion joint 5: The lower conversion joint 5 is divided into three parts. The size of the connector 3 is consistent with the interface size of the load sensor 2, and it is connected to the transition joint 4 through threads. The transition joint 4 has a built-in spring 42 and buffer slides 43 (symmetrical openings) on both sides for buffering and anti-collision. The connector 3 is connected to the transition joint 4 through an integrated locating pin 52, and is connected to the tensile testing machine through a locating pin hole (inserting the locating pin) below.

[0035] Upper conversion joint 1: upper positioning pin connection, lower thread 33 connection.

[0036] Dowel pin hole: Dowel pin connection.

[0037] Connector 3: Threaded connection at both ends.

[0038] Spring 42: used for downward collision prevention.

[0039] Transition joint 4: Buffer slide 43 (with symmetrical openings on both sides), used for downward collision prevention and equipment disassembly, maintenance or replacement.

[0040] Connector 3: an integrated positioning pin 52, used to limit the connection with the transition joint 4, and the positioning pin hole is used to connect the equipment.

[0041] The present invention solves the problem that there is only a load sensor 2 available for purchase, but the load of the tensile tester cannot be checked due to the lack of available tooling for connecting the tensile tester. The present invention solves the unexpected situation that may occur during the verification process: the equipment beam moves down too quickly, causing the sensor to be impacted and damaged.

[0042] The use process of the present invention is as follows: the load verification connection tooling of the tensile testing machine described in the present invention has an upper conversion joint 1 installed on the top of the load sensor 2, and the bottom of the load sensor 2 is connected to the upper thread 31 of the connector 3; the lower conversion joint 5 is placed along the buffer slide 43 inside the transition joint 4, and the integrated positioning pin 52 of the lower conversion joint 5 enters the positioning grooves on both sides along the buffer slide 43, and then a spring 42 is placed above the lower conversion joint 5, and the lower thread 33 of the upper connector 3 is threadedly connected on the spring 42. Thus, an anti-collision mechanism is formed by the transition joint 4 and the connector 3. When the connection tooling is subjected to external force, the lower conversion joint 5 drives the spring 42 to move toward the connector 3 along the buffer slide 43; when the external force is removed, the spring 42 drives the lower conversion joint 5 to return to its original position downward through the restoring force. Therefore, the present invention can increase the anti-collision mechanism and improve the anti-impact compression ability of the load sensor 2.

[0043] The present invention can be widely used in tension sensor applications.

[0044] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0045] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A load verification connection tool for a tensile testing machine, comprising an upper conversion joint (1), a load sensor (2) and a lower conversion joint (5), wherein the upper conversion joint (1) is threadedly connected to one end of the load sensor (2), and is characterized in that: The invention also includes an anti-collision mechanism, which includes a connector (3) and a transition joint (4). The connector (3) includes a connecting body (32), and an upper thread (31) and a lower thread (33) at the upper and lower ends of the connecting body (32). The connecting body (32) is connected to the other end of the load sensor (2) through the upper thread (31). The transition joint (4) includes an adapter housing (41). The adapter housing (41) has a spring (42) built in. The spring (42) moves up and down along a buffer slideway (43) provided in the adapter housing (41). The lower transition joint (5) is located in the buffer slideway (43) of the adapter housing (41) and below the spring (42). The lower transition joint (5) includes a built-in adapter (51) and integrated positioning pins (52) located at both ends of the built-in adapter (51). The integrated positioning pins (52) move up and down along positioning grooves on both sides of the buffer slideway (43). The upper conversion joint (1) comprises a conversion joint body (11) and a connecting thread (12) located below the conversion joint body (11), and the conversion joint body (11) is connected to the load sensor (2) via the connecting thread (12); the conversion joint body (11) is provided with a positioning pin hole, a positioning pin is inserted into the positioning pin hole, and the upper conversion joint (1) is connected to the tensile testing machine sensor; the tensile testing machine sensor is connected in series with the load sensor (2) via the upper conversion joint (1); The positioning grooves are symmetrical openings on both sides of the buffer slideway (43), and the positioning grooves are used for guiding and limiting with the integral positioning pin (52); The transition joint (4) is provided with a lower conversion joint (5), a spring (42) and a connector (3) in order from bottom to top, and the spring (42) is compressed in a buffer slideway (43) formed between the lower conversion joint (5) and the connector (3); The size of the built-in adapter (51) of the lower conversion joint (5) is consistent with the interface size of the load sensor (2), and is connected to the transition joint (4) by means of threads. The transition joint (4) has a built-in spring (42) and buffer slideways (43) on both sides for buffering and preventing collision. The connector (3) is connected to the transition joint (4) by means of an integrated positioning pin (52), and is connected to a tensile testing machine by means of a positioning pin hole below. When the connecting tool is subjected to an external force, the lower conversion joint (5) drives the spring (42) along the buffer slideway (43) to move toward the connecting head (3); after the external force is removed, the spring (42) drives the lower conversion joint (5) to return to its original position downward through the action of a restoring force.

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