Electronic universal testing machine

Abstract

The utility model provides an electronic universal testing machine, which relates to the field of performance testing equipment and comprises an electronic universal testing machine body, a pressure testing assembly is mounted on the electronic universal testing machine body and used for testing, and a supporting seat is arranged below the pressure testing assembly. A positioning plate capable of being adjusted front and back is arranged on the supporting base and used for positioning a workpiece. The positioning plate can realize accurate adjustment of the front-back position through the adjusting assembly, ensures that the workpiece can be accurately located under the pressure testing assembly, avoids uneven stress caused by position deviation of the workpiece, and improves the accuracy of a testing result. The clamping structure is connected with the positioning plate through the self-adaptive assembly, and the clamping position can be automatically adjusted according to workpieces of different sizes. The self-adaptive adjusting function can ensure that the workpiece does not displace in the left-right direction in the testing process and keeps stable, so that the force borne by the workpiece is uniformly distributed in the testing process, and the reliability of test data is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to performance test equipment field especially relates to a kind of electronic universal testing machine. BACKGROUND

[0002] In the field of material mechanical property testing, electronic universal testing machine is a key detection equipment. It is widely used in the mechanical property testing of various materials, including metals, plastics, rubbers, etc. The testing machine applies pressure and other external forces to the workpiece by simulating the mechanical conditions in the actual working environment. In this way, key mechanical property data of the material, such as strength, toughness and breaking point, can be obtained.

[0003] In the operation of electronic universal testing machine, it is crucial to accurately place the workpiece directly below the pressure testing assembly. The positioning accuracy of the workpiece directly determines the accuracy and reliability of the test results. If the workpiece shifts during testing, it will cause uneven stress, resulting in deviations in test data and affecting the accurate evaluation of material properties. Traditional electronic universal testing machines usually use simple fixing devices to constrain the position of the workpiece. However, in the initial stage of fixing the workpiece, if the workpiece is not correctly fixed directly below the pressure testing assembly, even a slight displacement of the end face will affect the accuracy of the test results in the subsequent testing process.

[0004] In view of the shortcomings of traditional testing machines in workpiece positioning, in order to ensure the accuracy and reliability of test results, an adjustable positioning plate is used to fix the rear end face of the workpiece. This method can effectively solve the problem of workpiece displacement during testing due to inaccurate fixing under the testing assembly, ensuring the stability of the workpiece during the entire testing process. SUMMARY

[0005] The utility model provides electronic universal testing machine in view of the deficiency in prior art, positioning plate can realize the accurate adjustment of front and back positions through adjusting assembly, ensure that workpiece can be accurately located directly below pressure testing assembly, avoid uneven stress caused by workpiece position deviation, thereby improving the accuracy of test results. The clamping structure is connected with the positioning plate through the self-adaptive assembly, which can automatically adjust the clamping position according to workpieces of different sizes. This self-adaptive adjustment function can ensure that the workpiece does not shift in left and right directions during testing, maintains stability, makes the force on the workpiece during testing evenly distributed, and ensures the reliability of test data.

[0006] To solve the above technical problems, the utility model solves the problem of electronic universal testing machine during testing workpiece due to inaccurate fixing of workpiece under testing assembly.

[0007] To achieve the above purpose, the utility model adopts the following technical scheme:

[0008] An electronic universal testing machine, comprising an electronic universal testing machine body, a pressure testing assembly is installed on the electronic universal testing machine body for testing, a supporting seat is arranged below the pressure testing assembly, a front and rear adjustable positioning plate is arranged on the supporting seat for positioning a workpiece, and a self-adaptive adjustable clamping structure is arranged on both sides of the positioning plate.

[0009] Preferably, the supporting seat and the positioning plate are connected through an adjusting assembly, the adjusting assembly comprises an internal movable groove, a threaded rotating rod and an adjusting sleeve block, the internal movable groove is opened in the inside of the supporting seat, the threaded rotating rod is movably installed on the inner wall of the internal movable groove through a bearing, one end of the adjusting sleeve block is threadedly connected with the threaded rotating rod to realize movement, and the other end of the adjusting sleeve block is connected with the positioning plate through a detachable assembly.

[0010] Preferably, the detachable assembly comprises a connecting piece, a connecting screw rod and a locking sleeve, the connecting screw rod is installed on the positioning plate and penetrates through a hole arranged on the connecting piece, and the locking sleeve is threadedly connected to one end of the connecting screw rod extending outside the hole of the connecting piece.

[0011] Preferably, anti-skid lines are arranged on the outer wall of the locking sleeve.

[0012] Preferably, a stabilizing pad is glued on the inner end face of the locking sleeve, the stabilizing pad is designed of rubber material and is in contact with the outer wall of the positioning plate.

[0013] Preferably, a handle is arranged on the threaded rotating rod, one end of the handle of the threaded rotating rod extends to the outside of the internal movable groove and a non-slip handle sleeve is sleeved on the handle.

[0014] Preferably, stabilizing sleeve blocks are connected to both ends of the adjusting sleeve block, T-shaped sliding rods are connected to both ends of the inner wall of the internal movable groove, and the stabilizing sleeve blocks are slidably connected to the T-shaped sliding rods.

[0015] Preferably, an assembly groove is connected to the electronic universal testing machine body and the supporting seat is inserted into the assembly groove, and assembly plates are symmetrically connected to both sides of the supporting seat and are fastened to the electronic universal testing machine body through bolts.

[0016] Preferably, the positioning plate and the clamping structure are connected through a self-adaptive assembly, the self-adaptive assembly comprises a slot, a stabilizing sliding rod and a positioning spring, the slot is opened in the inside of the positioning plate and the stabilizing sliding rod is movably arranged in the slot, the clamping structure is adhesively connected with the stabilizing sliding rod, and the positioning spring is arranged between the slot and the stabilizing sliding rod to realize self-adaptive adjustment.

[0017] Preferably, a movable piece is horizontally connected to the inner wall of the slot, and the stabilizing sliding rod slides on the movable piece.

[0018] Compared with the prior art, the utility model has the following beneficial effects:

[0019] The electronic universal testing machine provided by the application can realize accurate adjustment of the front and back positions of the positioning plate through the adjusting assembly, ensure that the workpiece can be accurately positioned directly below the pressure testing assembly, avoid uneven stress caused by deviation of the position of the workpiece, and thus improve the accuracy of the test results. The clamping structure is connected with the positioning plate through the self-adaptive assembly and can automatically adjust the clamping position according to workpieces of different sizes. The self-adaptive adjustment function can ensure that the workpiece does not displace in the left and right directions during the test process, keeps stable, makes the force borne by the workpiece during the test be uniformly distributed, and guarantees the reliability of the test data.

[0020] The adjusting assembly between the positioning plate and the support seat of the application is reasonably designed, and the operator can easily realize the front and back movement of the positioning plate by rotating the handle on the threaded rotating rod. The anti-slip handle sleeve on the handle provides a good grip, facilitating operation. The adjusting sleeve block is guided by the stable sleeve block and the T-shaped slide rod during the movement process, ensuring the stability and accuracy of the adjusting process and reducing the difficulty of the operator in adjusting the positioning plate.

[0021] The positioning plate and the adjusting sleeve block of the application are connected through the disassembly and assembly assembly, and the positioning plate can be disassembled and installed by simply rotating the locking sleeve, which is convenient and fast, facilitating the maintenance and component replacement of the equipment. The clamping structure and the positioning plate are connected by gluing, which meets the normal working strength, facilitates the disassembly and replacement of the clamping structure according to the processing requirements of different batches, improves the adaptability of the equipment to different workpieces, and improves the operation flexibility.

[0022] The adjustable design of the positioning plate and the self-adaptive adjustment function of the clamping structure enable the testing machine to adapt to workpieces of different sizes. Whether the workpiece is large or small, it can be accurately positioned and tested on the testing machine, expanding the application range of the equipment and meeting diversified testing requirements. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical scheme in the embodiments of the utility model, the drawings needed in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained by those skilled in the art without creative labor.

[0024] Figure 1 It is a whole structure schematic view of the utility model;

[0025] Figure 2 It is a split whole structure schematic view of the utility model;

[0026] Figure 3 Figure 2 is a schematic view of a rear view of a partial structure at the position of the positioning plate and the adjusting sleeve block of the utility model;

[0027] Figure 4 Figure 3 is a schematic view of a split partial structure at the position of the positioning plate, the clamping structure and the adjusting sleeve block of the utility model;

[0028] Figure 5 Figure 4 is a schematic view of a split partial structure at the position of the support seat, the threaded rotating rod and the anti-skid handle sleeve of the utility model;

[0029] Figure 6 Figure 5 is a schematic view of a top view of a partial structure at the position of the assembly groove and the support seat of the utility model;

[0030] Figure 7 Figure 6 is a schematic view of a right side view of a partial structure at the position of the positioning plate of the utility model;

[0031] Figure 8 Figure 7 is a schematic view of a partial structure at the position of the locking sleeve of the utility model.

[0032] Figure number explanation: 1, electronic universal testing machine body; 101, pressure test assembly; 102, assembly groove; 2, support seat; 2001, assembly plate; 201, built-in movable groove; 202, threaded rotating rod; 2021, anti-skid handle sleeve; 203, adjusting sleeve block; 2031, connecting piece; 2032, connecting screw; 2033, locking sleeve; 2034, stabilizing pad; 204, stabilizing sleeve block; 205, T-shaped sliding rod; 3, positioning plate; 301, notch; 302, movable piece; 303, stabilizing sliding rod; 304, positioning spring; 4, clamping structure. DETAILED DESCRIPTION

[0033] The utility model will be further described in detail below in combination with the drawings.

[0034] The following description is used to disclose the utility model so that the person skilled in the art can realize the utility model. The preferred embodiments in the following description are only as examples, and other obvious modifications can be thought of by the person skilled in the art. The basic principles of the utility model defined in the following description can be used in other embodiments, modification schemes, improvement schemes, equivalent schemes and other technical schemes without departing from the spirit and scope of the utility model.

[0035] Those skilled in the art should understand that in the disclosure of the utility model, the directions or positions indicated by the terms "longitudinal", "transverse", "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like are based on the directions or position relationships shown in the drawings, which are only for the convenience of the simplified description of the utility model and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore the above terms cannot be understood as a limitation on the utility model.

[0036] It can be understood that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of one element can be one, and in another embodiment, the number of the element can be multiple, and the term "one" cannot be understood as a limitation on the number. Embodiments

[0037] Please refer to Figure 1 - Figure 8 An electronic universal testing machine comprises an electronic universal testing machine body 1, a pressure testing assembly 101 is installed on the electronic universal testing machine body 1 for testing, a supporting seat 2 is arranged below the pressure testing assembly 101, a positioning plate 3 capable of being adjusted forward and backward is arranged on the supporting seat 2 for positioning a workpiece, and a clamping structure 4 capable of being self-adaptively adjusted is arranged on both sides of the positioning plate 3.

[0038] The electronic universal testing machine of the present application is mainly composed of an electronic universal testing machine body 1, a pressure testing assembly 101, a supporting seat 2, a positioning plate 3 and a clamping structure 4 and the like, and the following is a detailed structure and working principle.

[0039] I. Overall structure assembly

[0040] (I) Electronic universal testing machine body 1 and pressure testing assembly 101

[0041] The electronic universal testing machine body 1 is the basic frame of the whole testing machine, providing a mounting basis for various components. The pressure testing assembly 101 is installed on the electronic universal testing machine body 1 and is used to apply external forces such as pressure to the workpiece to test the mechanical properties of the material. The pressure testing assembly 101 is made of high-strength alloy steel material to ensure that it can withstand a large force and is not easy to deform during testing, ensuring the accuracy and reliability of the test.

[0042] (II) Supporting seat 2 and its connection with electronic universal testing machine body 1

[0043] Supporting seat 2 structure

[0044] The support base 2 is located below the pressure test assembly 101 and is used to carry and position the workpiece. The support base 2 is symmetrically connected with the assembly plate 2001 on both sides, the assembly plate 2001 is fastened on the electronic universal testing machine body 1 through bolts, and the stable installation of the support base 2 is realized. The assembly plate 2001 is made of stainless steel and has good corrosion resistance and strength.

[0045] The electronic universal testing machine body 1 is provided with an assembly groove 102, and the support base 2 is inserted in the assembly groove 102. This insertion structure helps to further fix the position of the support base 2 and prevent it from moving during the test.

[0046] (Three) positioning plate 3 and its adjusting structure

[0047] Connection of the positioning plate 3 and the support base 2

[0048] The support base 2 is provided with the positioning plate 3 which can be adjusted forward and backward, and is used for accurate forward and backward position positioning of the workpiece. The support base 2 and the positioning plate 3 are connected through the adjusting assembly.

[0049] The adjusting assembly includes an internal movable groove 201, a threaded rotating rod 202 and an adjusting sleeve block 203.

[0050] The internal movable groove 201 is opened in the inside of the support base 2 and is milled to ensure the accuracy and flatness of the groove.

[0051] The threaded rotating rod 202 is movably installed on the inner wall of the internal movable groove 201 through a bearing. The bearing is a high-precision ball bearing to reduce the friction resistance when the threaded rotating rod 202 rotates. The threaded rotating rod 202 is made of medium carbon steel and its surface is treated by quenching and grinding to improve its hardness and wear resistance. The threaded rotating rod 202 has a handle, one end of the handle extends to the outside of the internal movable groove 201, and a non-slip handle sleeve 2021 is sleeved on the handle. The non-slip handle sleeve 2021 is made of rubber and has good anti-skid performance, which facilitates the operator to rotate the threaded rotating rod 202.

[0052] One end of the adjusting sleeve block 203 is threadedly connected with the threaded rotating rod 202. The adjusting sleeve block 203 is made of aluminum alloy, which is light in weight and has a certain strength. The two ends of the adjusting sleeve block 203 are connected with the stable sleeve block 204, and the two ends of the inner wall of the internal movable groove 201 are connected with the T-shaped sliding rod 205, and the stable sleeve block 204 is slidably connected on the T-shaped sliding rod 205. The T-shaped sliding rod 205 is made of stainless steel and its surface is polished to reduce the friction of the stable sleeve block 204 during sliding and ensure the stability of the adjusting sleeve block 203 during movement.

[0053] (Four) disassembly and assembly assembly of the positioning plate 3 and the adjusting sleeve block 203

[0054] Disassembly and assembly assembly structure

[0055] The other end of the adjusting sleeve block 203 is connected with the positioning plate 3 through a detachable assembly. The detachable assembly comprises a connecting piece 2031, a connecting screw 2032 and a locking sleeve 2033.

[0056] The connecting piece 2031 is connected at the end of the adjusting sleeve block 203 extending to the outside of the support base 2. The connecting piece 2031 is made of high-strength engineering plastic, having certain toughness and strength.

[0057] The connecting screw 2032 is installed on the positioning plate 3 and penetrates through the hole provided on the connecting piece 2031. The connecting screw 2032 is made of high-strength alloy steel, ensuring the firmness of the connection.

[0058] The locking sleeve 2033 is threadedly connected at the end of the connecting screw 2032 extending to the outside of the hole of the connecting piece 2031. The outer wall of the locking sleeve 2033 is provided with anti-skid lines, which are processed by knurling process, facilitating the manual tightening or loosening of the locking sleeve 2033 by the operator. The inner end face of the locking sleeve 2033 is glued with a rubber stabilizing pad 2034. The stabilizing pad 2034 is in contact with the outer wall of the positioning plate 3. The rubber stabilizing pad 2034 can play a role of buffering and preventing loosening, ensuring the stability of the connection between the positioning plate 3 and the adjusting sleeve block 203.

[0059] (Five) Clamping structure 4 and its self-adaptive assembly with the positioning plate 3

[0060] Connection of the clamping structure 4 with the positioning plate 3

[0061] The positioning plate 3 is provided with self-adaptable clamping structures 4 on both sides, which are used to clamp and position the workpiece from both sides, preventing the workpiece from moving in the left-right direction during the test. The positioning plate 3 and the clamping structure 4 are connected through a self-adaptive assembly.

[0062] The self-adaptive assembly comprises a slot 301, a movable piece 302, a stable slide rod 303 and a positioning spring 304. The slot 301 is opened in the inside of the positioning plate 3 and is processed by wire cutting process, ensuring the accuracy of the slot 301. The movable piece 302 is horizontally connected to the inner wall of the slot 301. The movable piece 302 enables the stable slide rod 303 to slide thereon. The movable piece 302 is made of polytetrafluoroethylene material with low friction coefficient, reducing the resistance when the stable slide rod 303 slides. The stable slide rod 303 is symmetrically movable in the slot 301. The clamping structure 4 is connected with the stable slide rod 303 by gluing. The gluing is made of high-strength structural adhesive, ensuring the reliability of the connection. The positioning spring 304 is arranged between the slot 301 and the stable slide rod 303. The positioning spring 304 is made of high-quality spring steel, having a suitable elastic coefficient. When the size of the workpiece changes, the self-adaptive adjustment of the clamping structure 4 is realized through the expansion and contraction of the positioning spring 304, ensuring the clamping effect on workpieces of different sizes.

[0063] II. Working principle

[0064] (1) Front and rear adjustment of positioning plate 3

[0065] When it is necessary to adjust the front and rear positions of the positioning plate 3, the operator rotates the handle of the threaded rotating rod 202. Due to the threaded connection relationship between the threaded rotating rod 202 and the adjusting sleeve block 203, and the guiding effect of the stabilizing sleeve block 204 and the T-shaped sliding rod 205 on the adjusting sleeve block 203, the adjusting sleeve block 203 moves forward and backward along the built-in movable groove 201. The adjusting sleeve block 203 drives the positioning plate 3 to move through the disassembly and assembly component, thereby realizing the front and rear position adjustment of the positioning plate 3 and ensuring that the workpiece can be accurately located directly below the pressure test assembly 101.

[0066] (2) Disassembly and assembly of the positioning plate 3 and the adjusting sleeve block 203

[0067] When it is necessary to disassemble or replace the positioning plate 3, the operator can rotate the locking sleeve 2033 to loosen it from the connecting screw 2032. Since the stable pad 2034 at the inner end of the locking sleeve 2033 is in contact with the outer wall of the positioning plate 3, after loosening the locking sleeve 2033, the positioning plate 3 can be easily disassembled from the adjusting sleeve block 203. During installation, the operation is reversed, and the positioning plate 3 is firmly connected with the adjusting sleeve block 203 by tightening the locking sleeve 2033.

[0068] (3) Self-adaptive adjustment of the clamping structure 4

[0069] When placing the workpiece, the clamping structure 4 will automatically adjust its position according to the size of the workpiece. When the workpiece is large, the workpiece will press the clamping structure 4, causing the stable sliding rod 303 to slide in the slot 301 and compress the positioning spring 304. When the workpiece is small, the positioning spring 304 will expand and push the clamping structure 4 closer to the workpiece. Through this self-adaptive adjustment mechanism, the clamping structure 4 can always tightly adhere to the two sides of the workpiece, ensuring the stability of the workpiece's left and right positions during testing and preventing the workpiece from shifting. The clamping structure 4 and the positioning plate 3 are connected by adhesive, which not only meets the normal working strength but also facilitates the disassembly and replacement of the clamping structure according to different batches of processing needs, improving the adaptability and operational flexibility of the equipment to different workpieces.

[0070] (4) Adhesion of the positioning plate 3 and the workpiece

[0071] The one side of the positioning plate 3 contacting the workpiece is flat, and the size thereof is designed to cover the workpiece with the largest size. In this way, the rear end surface of the workpiece can be completely attached to the positioning plate 3 regardless of the size of the workpiece, so that the workpiece is detected under the pressure test assembly 101 in the condition of flat attachment, the stability in the detection process is ensured, and the detection error caused by the loose or uneven attachment of the workpiece to the positioning plate 3 is avoided.

[0072] It should be understood by those skilled in the art that the above description and the embodiments of the utility model shown in the drawings are only examples and do not limit the utility model. The purpose of the utility model has been completely and effectively achieved. The function and structural principle of the utility model have been shown and described in the embodiments, and the embodiments of the utility model can be any deformation or modification without departing from the principle.

Claims

1. An electronic universal testing machine characterized by: Including electronic universal testing machine body (1), pressure test assembly (101) is installed on the electronic universal testing machine body (1) for testing, support seat (2) is arranged below the pressure test assembly (101), the support seat (2) is provided with the positioning plate (3) that can be adjusted forward and backward for positioning workpiece, the positioning plate (3) both sides are equipped with the clamping structure (4) that can be self-adaptive adjustment.

2. The electronic universal testing machine according to claim 1, characterized in that: The support seat (2) and the positioning plate (3) are connected by an adjusting assembly, the adjusting assembly includes an internal movable slot (201), a threaded rotating rod (202) and an adjusting sleeve block (203), the internal movable slot (201) is opened in the inside of the support seat (2), the threaded rotating rod (202) is movably mounted on the inner wall of the internal movable slot (201) through a bearing, one end of the adjusting sleeve block (203) is threadedly connected with the threaded rotating rod (202) to realize movement, the other end of the adjusting sleeve block (203) is connected with the positioning plate (3) through a dismounting assembly.

3. The electronic universal testing machine according to claim 2, characterized in that: The dismounting assembly includes a connecting piece (2031), a connecting screw rod (2032) and a locking sleeve (2033), the connecting screw rod (2032) is mounted on the positioning plate (3) and penetrates the hole provided on the connecting piece (2031), and the locking sleeve (2033) is threadedly connected on one end of the connecting screw rod (2032) extending to the outside of the hole of the connecting piece (2031).

4. The electronic universal testing machine according to claim 3, characterized in that: Anti-skid lines are provided on the outer wall of the locking sleeve (2033).

5. The electronic universal testing machine according to claim 3, wherein: A stable pad (2034) is glued on the inner end surface of the locking sleeve (2033), the stable pad (2034) is designed of rubber material and contacts the outer wall of the positioning plate (3).

6. The electronic universal testing machine according to claim 2, wherein: A handle is provided on the threaded rotating rod (202), one end of the handle of the threaded rotating rod (202) extends to the outside of the internal movable slot (201) and a non-slip handle sleeve (2021) is sleeved thereon.

7. The electronic universal testing machine according to claim 2, wherein: Stable sleeve blocks (204) are connected on both ends of the adjusting sleeve block (203), T-shaped slide rods (205) are connected on both ends of the inner wall of the internal movable slot (201), and the stable sleeve blocks (204) are slidably connected on the T-shaped slide rods (205).

8. The electronic universal testing machine according to claim 2, wherein: An assembly groove (102) is connected on the electronic universal testing machine body (1) and inserted into the support seat (2), assembly plates (2001) are symmetrically connected on both sides of the support seat (2), and the assembly plates (2001) are fastened on the electronic universal testing machine body (1) by bolts.

9. The electronic universal testing machine according to claim 8, characterized in that: The positioning plate (3) and the clamping structure (4) are connected by a self-adaptive assembly, the self-adaptive assembly includes a slot (301), stable slide rods (303) and positioning springs (304), the slot (301) is opened in the inside of the positioning plate (3) and the stable slide rods (303) are movably arranged therein in symmetry, the clamping structure (4) is connected with the stable slide rods (303) by gluing, and the positioning springs (304) are arranged between the slot (301) and the stable slide rods (303) for self-adaptive adjustment.

10. The electronic universal testing machine according to claim 9, characterized in that: The inner wall of the slot (301) is horizontally connected with a movable element (302), and the movable element (302) makes the stable slide rod (303) slide thereon.

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