Broken sample clamping mechanism and testing machine

Abstract

The invention relates to the field of testing equipment, in particular to a broken sample clamping mechanism and a testing machine, the broken sample clamping mechanism is arranged on the testing machine, the broken sample clamping mechanism comprises: a jaw mechanism, the jaw mechanism is movably mounted on the testing machine, and a sample is clamped on the jaw mechanism; and the pneumatic claw mechanism is provided with a clamping piece of the jaw mechanism, the jaw mechanism is clamped, and the clamping mechanism for clamping a fractured sample can be moved out of the testing machine when the testing machine is used for testing. The device has the beneficial effects that the jaw mechanism is movably arranged on the clamp of the testing machine, and the pneumatic claw mechanism can integrally move the jaw mechanism out of the clamp of the testing machine, so that a broken sample can be completely removed from the clamp; an adjusting structure is arranged on the jaw mechanism, so that the broken sample can be effectively ensured to be always clamped in the jaw mechanism so as to be integrally moved out; the scheme is convenient in structure and wide in applicability.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of testing equipment, in particular to a broken sample clamping mechanism and a testing machine. BACKGROUND

[0002] The full-automatic electronic universal testing machine is a high-precision material mechanical property testing equipment integrating machinery, electronics, sensors and computer software. It can automatically complete the tensile, compression, bending, shear, peeling and tearing tests of metal, non-metal, composite materials, plastics, rubber, textiles, medical devices and other materials through servo motor driving, high-precision sensors and computer control.

[0003] Usually, a broken sample needs to be removed after the sample test is completed. The conventional full-automatic electronic universal testing machine is provided with a set of mechanical hand at each of the lower clamp and the upper clamp to clamp the broken sample on the lower clamp and the upper clamp after the test. However, since the broken sample is usually very close to the jaw of the lower clamp or the upper clamp or even broken in the jaw, the mechanical hand at the lower clamp and the upper clamp cannot clamp the broken sample after the test, which affects the subsequent test. SUMMARY

[0004] The present application aims to provide a broken sample clamping mechanism and a testing machine to solve the problem that the broken sample cannot be clamped and removed in the prior art.

[0005] To achieve the above purpose, the present application adopts the following technical solutions: On the one hand, the present application provides a broken sample clamping mechanism arranged on a testing machine, which comprises: a jaw mechanism movably installed on the testing machine and clamping a sample thereon; a pneumatic claw mechanism having a clamping part of the jaw mechanism, clamping the jaw mechanism and moving the clamping mechanism clamping the broken sample from the testing machine after the test.

[0006] As an optional solution of the above broken sample clamping mechanism, the jaw mechanism has two oppositely arranged jaw blocks, and the two jaw blocks are structurally identical. Each jaw block has a jaw body and a clamping ear located on both sides of the jaw body. The two jaw bodies clamp a sample therebetween for test. The clamping ear cooperates with the pneumatic claw mechanism to realize the clamping of the jaw mechanism by the pneumatic claw mechanism.

[0007] As an alternative to the above sample clamping mechanism, the jaw block has a rectangular prism portion and a cuboid portion arranged vertically, the bottom of the rectangular prism portion coincides with the top of the cuboid portion, and the right angle face of the rectangular prism portion and one side face of the cuboid portion are in the same extension plane, and the clamping ears are arranged vertically on the side faces on both sides of the right angle face of the jaw block.

[0008] As an alternative to the above sample clamping mechanism, the cuboid portion of the jaw block has a through long slot inside, and an adjusting structure is installed in the long slot to facilitate clamping of the jaw block on the sample.

[0009] As an alternative to the above sample clamping mechanism, the long slot on each jaw block is provided with a spring abutting groove at both ends, and a spring is installed in the spring abutting groove.

[0010] As an alternative to the above sample clamping mechanism, the adjusting structure has a guide pin shaft, one end of the guide pin shaft has a stop head, and the other end is provided with an end cover, the guide pin shaft is arranged through the long slot by the stop head and the end cover.

[0011] As an alternative to the above sample clamping mechanism, the spring has at least a balance spring and a tightening spring, the balance spring is sleeved on the middle section of the guide pin shaft, and the two ends of the balance spring are respectively abutted between the spring abutting grooves arranged oppositely on the two jaw blocks, and the two ends of the tightening spring are abutted between the spring abutting grooves arranged oppositely on the two jaw blocks and the stop head or the end cover.

[0012] As an alternative to the above sample clamping mechanism, the air claw mechanism has at least a sample clamping block, an air claw and a driving mechanism, one end of the air claw is connected with the sample clamping block, and the other end is connected with the driving mechanism, and the sample clamping block can be clamped outside the clamping ears of the two jaw blocks arranged oppositely.

[0013] In another aspect, the present application provides a testing machine having at least a clamp, the clamp having a jaw mounting portion, the jaw mounting portion having a U-shaped mouth, two vertical sides of the U-shaped mouth having oppositely arranged inclined portions, the inclined portions being arranged in an inverted right-angled trapezoidal shape, the top surface area of the inclined portions being greater than the bottom surface area, the inclined surface extending from the top surface to the bottom surface, the height of the inclined portions being less than the height of the U-shaped mouth, a height difference being formed between the two, a lateral slot being formed between the bottom surface of the inclined portions and the bottom surface of the U-shaped mouth; the inclined portions of the jaw mounting portion being in contact with the inclined surface of the right-angled frustum portion, and the length of the inclined surface of the jaw mounting portion being less than the length of the inclined surface of the right-angled frustum portion, so that the bottom cuboid portion of the right-angled frustum portion can extend into the lateral slot, and the jaw mechanism can slide relative to the inclined portions to clamp the sample, while the jaw mechanism can also be moved out of the U-shaped mouth of the jaw mounting portion in the horizontal direction.

[0014] As an optional solution of the testing machine, the jaw mounting portion has a mounting slot, the bottom of the jaw mechanism being arranged on the mounting slot, and the length of the mounting slot being greater than the length of the two jaw blocks after being attached, so as to form a movable distance of the jaw blocks when clamping the sample.

[0015] The present application has the following advantages: ①The jaw mechanism is movably arranged on the clamp of the testing machine, and the air claw mechanism can move the jaw mechanism as a whole out of the clamp of the testing machine, so that the broken sample can be completely removed from the clamp; ②The adjusting structure is arranged on the jaw mechanism, which effectively ensures that the broken sample can be clamped in the jaw mechanism at all times so as to be moved out as a whole; ③The present solution is convenient in structure and has wide applicability. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the description of the embodiments of the present application. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art according to the contents of the embodiments of the present application and the drawings without any creative effort.

[0017] Figure 1 is a structural schematic diagram of the clamp and the broken sample clamping mechanism of the testing machine of the present application; Figure 2 is Figure 1 a three-dimensional structural schematic diagram; Figure 3 is Figure 1 a structural schematic diagram of the broken sample clamping mechanism; Figure 4 is Figure 3Structure diagram of the upper jaw mechanism; Figure 5 is a structure diagram of the exploded view of the upper jaw mechanism; Figure 4 Figure 6 is a sectional view of the upper jaw mechanism; Figure 4 Figure 7 is a structure diagram of the exploded view of the upper jaw mechanism; Figure 1 Figure 8 is a structure diagram of the exploded view of the upper jaw mechanism; Figure 1 Figure 9 is a structure diagram of the exploded view of the upper jaw mechanism; Figure 8 Figure 10 is a structure diagram of the exploded view of the upper jaw mechanism; Figure 8 is a structure diagram of the exploded view of the upper jaw mechanism.

[0018] Reference signs: 10. upper clamp; 11. lower clamp; 110. jaw mounting portion; 1100. bottom surface; 111. inclined portion; 1110. inclined surface; 1111. top surface; 1112. bottom surface; 1113. side slot; 112. mounting slot; 20. jaw mechanism; 200. jaw block; 2000. jaw body; 20000. right-angle frustum portion; 20001. cuboid portion; 20003. inclined surface; 20004. right-angle surface; 20005. side surface; 20006. top surface; 20007. bottom surface; 2001. clamp ear; 2002. stepped portion; 2003. long slot; 20030. spring abutting slot; 2004. adjusting structure; 20040. guide pin; 20041. stopper; 20042. end cap; 20043. tightening spring; 20044. balance spring; 30. air claw mechanism; 300. air claw; 3000. track; 3001. guide rod structure; 301. sample breaking clamp block; 3010. supporting leg; 3011. connecting structure; 4. sample. DETAILED DESCRIPTION

[0019] In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some but not all of the embodiments of the present application. The components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.

[0020] ​​​​​Therefore, the following detailed description of the embodiments of the application provided in the accompanying drawings is not intended to limit the scope of the application as claimed, but merely represents selected embodiments of the application. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments of the application without creative labor fall within the scope of protection of the application.

[0021] It should be noted that similar reference numbers and letters refer to similar items in the following drawings, and therefore, once an item is defined in one drawing, it need not be further defined and explained in subsequent drawings.

[0022] In the description of the application, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the application is usually placed, and are only for the convenience of describing the application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the application. In addition, the terms "first", "second", "third" and the like are only used to distinguish the description and cannot be understood as indicating or implying relative importance. In the description of the application, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0023] In the description of the application, it should also be noted that, unless otherwise explicitly specified and limited, the terms "provided", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected. For those of ordinary skill in the art, the specific meaning of the above terms in the application can be understood according to the specific circumstances.

[0024] In the present application, unless otherwise explicitly specified and limited, "on" or "under" of the first feature to the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, "on", "above" and "above" of the first feature to the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. "Below", "below" and "below" of the first feature to the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0025] Embodiments of the present application are described in detail below with reference to the attached drawing figures, wherein the same or like component have the same or similar designations. The embodiments described below are presented by way of example only and are not intended to limit the present application as defined by the appended claims.

[0026] The present embodiment provides a sample breaking and holding mechanism, which is arranged on a testing machine.

[0027] As shown in the figure, the sample breaking and holding mechanism comprises: a jaw mechanism 20, which is movably arranged on the testing machine and holds the sample 4 thereon; a pneumatic claw mechanism 30, which has a holding part of the jaw mechanism 20, holds the jaw mechanism 20 and can move the holding mechanism holding the broken sample 4 out of the testing machine.

[0028] More specifically: The jaw mechanism 20 has two jaw blocks 200 arranged oppositely, and the two jaw blocks 200 are identical in structure. Each jaw block 200 has a jaw main body 2000 and two clamping ears 2001 arranged on both sides of the jaw main body 2000. The sample 4 is clamped between the two jaw main bodies 2000 for testing. The clamping ears 2001 cooperate with the pneumatic claw mechanism 30 to achieve the clamping of the jaw mechanism 20 by the pneumatic claw mechanism 30.

[0029] The jaw main body 2000 of each jaw block 200 has a right prism portion 20000 and a cuboid portion 20001 arranged oppositely. The bottom of the right prism portion 20000 coincides with the top of the cuboid portion 20001. The right angle surface 20004 of the right prism portion 20000 and the two side surfaces 20005 adjacent to the right angle surface 20004 form the same extension plane with the side surfaces 20005 of the cuboid portion 20001. The bottom of the inclined surface 20003 of the right prism portion 20000 is connected to the top of the cuboid portion 20001, and the two are arranged at an obtuse angle, so that the jaw block 200 has a prism-cuboid combined polyhedral structure as a whole.

[0030] The clamping ears 2001 are arranged vertically on the two side surfaces 20005 adjacent to the right angle surface 20004 of the jaw block 200. As shown in the present embodiment, two clamping ears 2001 are arranged on each jaw block 200, and the jaw mechanism 20 formed by the oppositely arranged two jaw blocks 200 has four clamping ears 2001 arranged oppositely in pairs. The clamping ear 2001 has a rectangular structure, and the upper plane is located in the same extension plane as the top plane of the jaw block 200. The bottom of the clamping ear 2001 is higher than the bottom plane 20007 of the jaw block 200, i.e. the height of the clamping ear 2001 is lower than the height of the jaw block 200, and a stepped portion 2002 with a height difference is formed between the two.

[0031] It should be noted that the shape of the clamping ear 2001 in actual use can also adopt other forms, and is not limited to a cuboid structure, as long as the clamping ear 2001 can be clamped to drive the whole jaw mechanism 20 to be moved.

[0032] The cuboid part 20001 of each jaw block 200 is internally provided with a through long groove 2003, the long grooves 2003 of the two oppositely arranged jaw blocks 200 are located at the same position and are through each other when oppositely arranged, and the long groove 2003 is internally provided with an adjusting structure 2004 to facilitate adjusting the position of the jaw block 200 when the jaw block 200 clamps the sample 4.

[0033] The adjusting structure 2004 has a guide pin shaft 20040, one end of the guide pin shaft 20040 has a stop head 20041, the other end is provided with an end cover 20042, the guide pin shaft 20040 penetrates the long grooves 2003 of the two oppositely arranged jaw blocks 200, and the guide pin shaft 20040 penetrates and is installed in the long groove 2003 through the stop head 20041 and the end cover 20042.

[0034] Similarly, the long groove 2003 on each jaw block 200 is provided with a spring abutting groove 20030 at both ends, and a spring is installed in the spring abutting groove 20030; the spring at least has a balance spring 20044 and a fastening spring 20043, the balance spring 20044 is sleeved at the middle position of the guide pin shaft 20040, and the balance spring 20044 is abutted between the spring abutting grooves 20030 oppositely arranged on the two jaw blocks 200 at both ends, respectively, and the two ends of the two fastening springs 20043 are abutted between the spring abutting grooves 20030 oppositely arranged on the two jaw blocks 200 and the stop head 20041 and between the spring abutting grooves 20030 and the end cover 20042.

[0035] Based on the above adjusting mechanism, when the two jaw blocks 200 clamp the sample 4, the sample 4 moves the two jaw blocks 200 along the two sides of the guide pin shaft 20040, and the adjusting structure 2004 provides a counter force to the two jaw blocks 200 towards the middle through the spring to clamp the sample 4, so that the sample 4 is still clamped between the two jaw blocks 200 after the test is completed.

[0036] The air claw mechanism 30 as a sample breaking clamping mechanism is used to clamp the jaw mechanism 20 externally, so that the whole jaw mechanism 20 moves out of the testing machine, and at least has a sample breaking clamp 301, an air claw 300 and a driving mechanism, one end of the air claw 300 is connected with the sample breaking clamp 301, the other side is connected with the driving mechanism, and the sample breaking clamp 301 can be clamped outside the clamping ears 2001 of the two oppositely arranged jaw blocks 200.

[0037] In the embodiment, the sample breaking clamp block 301 adopts a U-shaped structure, two legs 3010 of the U-shaped structure are clamped outside two clamping ears 2001 respectively, the connecting structure 3011 of the two legs 3010 is attached to the top plane 20006 of the jaw block 200 at the bottom, and the upper part of the connecting structure 3011 is connected to the air claw 300. The air claw 300 can adopt the existing air claw 300 structure, which has a track 3000 and two guide rod structures 3001. The two guide rod structures 3001 are installed on the track 3000 and can move along the track 3000. Each guide rod structure 3001 is installed with a connecting structure 3011. The guide rod structure 3001 can be controlled to move by a driving mechanism, thereby driving the sample breaking clamp block 301 to clamp the jaw mechanism 20.

[0038] It should be noted that the air claw mechanism 30 used in the present scheme can adopt the air claw mechanism 30 in the prior art. Therefore, the working principle and structure of the air claw mechanism 30 itself can refer to the existing air claw mechanism 30.

[0039] The embodiment also provides a testing machine. The main body structure is the same as that of a conventional testing machine, which has an upper clamp 10 and a lower clamp 11. The difference between the testing machine of the present scheme and the conventional testing machine lies in the structure of the upper clamp 10 and the lower clamp 11. The upper clamp 10 and the lower clamp 11 have the same structure, which has a jaw mounting portion 110. The jaw mounting portion 110 has a U-shaped mouth. The two vertical sides of the U-shaped mouth have oppositely arranged inclined portions 111. The inclined portions 111 are arranged in an inverted right-angle trapezoidal shape. The area of the top surface 1111 of the inclined portion 111 is greater than the area of the bottom surface 1112. The inclined surface 1110 extends from the top surface 1111 to the bottom surface 1112. In the embodiment, the height of the inclined portion 111 is less than the height of the U-shaped mouth, and the height difference between the two forms a side slot 1113 between the bottom surface 1112 of the inclined portion 111 and the bottom surface 1100 of the U-shaped mouth. The inclined portion 111 of the jaw mounting portion 110 is attached to the inclined surface 20003 of the right-angle frustum portion 20000, and the length of the inclined surface 1110 of the jaw mounting portion 110 is less than the length of the inclined surface 20003 of the right-angle frustum portion 20000, so that the bottom cuboid portion 20001 of the right-angle frustum portion 20000 can extend into the side slot 1113, and the jaw mechanism 20 can slide along the inclined portion 111 to clamp the sample 4, and the jaw mechanism 20 can also be easily moved out of the U-shaped mouth of the jaw mounting portion 110 in the horizontal direction.

[0040] In addition, the U-shaped bottom of the jaw mounting portion 110 has a mounting groove 112, and the height difference between the bottom of the jaw block 200 and the bottom of the clamping ear 2001 of the jaw mechanism 20 is embedded and mounted in the mounting groove 112, and the bottom of the clamping ear 2001 is attached to the surface of the U-shaped bottom, and it should be noted that the length of the mounting groove 112 is greater than the length of the two jaw blocks 200 after being attached, so as to form the movable distance of the jaw block 200 when clamping the sample 4.

[0041] Obviously, the above only the preferred embodiments of the present application and the use of technical principles. Those skilled in the art will understand that the present application is not limited to the specific embodiments described herein, those skilled in the art can make various obvious changes, re-adjustment and replacement without departing from the scope of the present application. Therefore, although the above embodiments of the present application are described in more detail, the present application is not limited to the above embodiments, without departing from the concept of the present application, it can also include more other equivalent embodiments, and the scope of the present application is determined by the appended claims.

[0042] Note that in the description of the present specification, the description referring to the terms "some embodiments", "other embodiments" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiments or examples are included in at least one embodiment or example of the present application. In the present specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

Claims

1. A sample clamping mechanism, mounted on a testing machine, characterized in that, The sample breaking clamping mechanism comprises: A jaw mechanism movably mounted on the testing machine, clamping a sample thereon; An air claw mechanism having a clamping part of the jaw mechanism, clamping the jaw mechanism and moving the clamping mechanism clamping the broken sample out of the testing machine after the testing of the testing machine.

2. The sample clamp mechanism of claim 1, wherein The jaw mechanism has two jaw blocks oppositely arranged, the two jaw blocks are structurally identical, each of the jaw blocks has a jaw body and clamping ears on both sides of the jaw body, the two jaw bodies clamp a sample therebetween for testing, and the clamping ears cooperate with the air claw mechanism to realize clamping of the jaw mechanism by the air claw mechanism.

3. The sample clamp mechanism of claim 2, wherein, The jaw body of the jaw block has a right prism portion and a cuboid portion arranged in a vertical manner, the bottom of the right prism portion coincides with the top of the cuboid portion, the right face of the right prism portion and one side face of the cuboid portion are in the same extension plane, and the clamping ears are vertically arranged on the side faces on both sides of the right face of the jaw block.

4. The sample clamp mechanism of claim 3, wherein The cuboid portion of the jaw block is internally provided with a through long slot, and an adjusting structure is mounted in the long slot to facilitate clamping of the sample by the jaw block.

5. The sample clamp mechanism of claim 4, wherein, Spring abutting grooves are arranged at both ends of the long slot on each of the jaw blocks, and springs are mounted in the spring abutting grooves.

6. The sample clamp mechanism of claim 5, wherein, The adjusting structure has a guide pin shaft, one end of the guide pin shaft has a stop head, and the other end of the guide pin shaft is provided with an end cover, and the guide pin shaft is arranged in the long slot through the stop head and the end cover.

7. The sample clamp mechanism of claim 6, wherein, The spring has at least a balance spring and a fastening spring, the balance spring is sleeved on the middle part of the guide pin shaft, and the two ends of the balance spring abut against the spring abutting grooves oppositely arranged on the two jaw blocks, respectively, and the two ends of the fastening spring abut against the spring abutting grooves oppositely arranged on the two jaw blocks and the stop head or the end cover.

8. The sample clamp mechanism of claim 2, wherein, The air claw mechanism has at least a sample breaking clamping block, an air claw and a driving mechanism, one end of the air claw is connected with the sample breaking clamping block, the other side is connected with the driving mechanism, and the sample breaking clamping block can be clamped outside the clamping ears of the two jaw blocks oppositely arranged.

9. A testing machine having at least a clamp, characterized by The clamp has a jaw mounting part mounting the jaw mechanism of the preceding claim 3, the jaw mounting part has a U-shaped mouth, the two vertical side faces of the U-shaped mouth have oppositely arranged inclined parts, the inclined parts are arranged in an inverted right-angle trapezoidal manner, the top face area of the inclined part is greater than the bottom face area, the inclined face extends from the top face to the bottom face, the height of the inclined part is less than the height of the U-shaped mouth, and the height difference between the two forms a side groove between the bottom face of the inclined part and the bottom face of the U-shaped mouth; the inclined part of the jaw mounting part is in close contact with the inclined face of the right prism portion, and the length of the inclined face of the jaw mounting part is less than the length of the inclined face of the right prism portion, so that the bottom cuboid portion of the right prism portion can extend into the side groove, the jaw mechanism can relatively slide along the inclined part to clamp the sample, and the jaw mechanism can also be moved out of the U-shaped mouth of the jaw mounting part in the horizontal direction.

10. The testing machine of claim 9, wherein, The jaw mounting portion has a mounting groove, the bottom of the jaw mechanism is arranged on the mounting groove, and the length of the mounting groove is greater than the length of the two jaw blocks after being attached, so as to form the movable distance when the jaw blocks clamp the sample.

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