Clamping device for processing plate tensile specimens

Abstract

The present invention discloses a clamping device for processing plate-shaped tensile specimens, which includes a base plate and at least one clamping assembly arranged on the base plate, the clamping assembly includes a pair of support blocks, at least one specimen support arranged between the pair of support blocks, and a clamping mechanism for pressing the specimen on the specimen support, the pair of support blocks includes two support blocks respectively arranged at two ends of the base plate in a first direction, the clamping mechanism includes a clamping bolt vertically arranged on the base plate, a fixed pressure plate sleeved on the clamping bolt, a nut for pressing the fixed pressure plate on the specimen, and an elastic member sleeved on the clamping bolt and located between the base plate and the fixed pressure plate, the clamping bolt is located between the support block and the specimen support, or between two adjacent specimen supports. The clamping device for processing plate-shaped tensile specimens provided by the present invention can clamp multiple specimens at the same time, thereby improving production efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of clamping equipment, and in particular to a clamping device for processing a plate-shaped tensile specimen. Background Art

[0002] Tensile test refers to a test method for measuring material properties under axial tensile load. The data obtained from the tensile test can be used to determine the material's elastic limit, elongation, elastic modulus, proportional limit, area reduction, tensile strength, yield point, yield strength and other tensile performance indicators. The test to determine a series of properties of a material under tensile load is also called tensile test. It is one of the basic methods for testing the mechanical properties of materials, mainly used to check whether the material meets the specified standards and study the performance of the material. The sampling and processing accuracy and efficiency of the tensile specimen directly affect the test results and test cycle. Modern factories can obtain test results efficiently and accurately, which is the guarantee of high-efficiency and high-quality production. Summary of the invention

[0003] In order to solve the problems existing in the prior art, the purpose of the present invention is to provide a clamping device for processing a plate-shaped tensile specimen, which can be used for processing a plate-shaped tensile specimen and improve production efficiency.

[0004] Based on the above problems, the technical solution provided by the present invention is:

[0005] A clamping device for processing plate-shaped tensile specimens, comprising a base plate and at least one clamping assembly arranged on the base plate, wherein the clamping assembly comprises a pair of support blocks, at least one specimen support arranged between the pair of support blocks, and a clamping mechanism for pressing the specimen onto the specimen support, wherein the pair of support blocks comprises two support blocks respectively arranged at two ends of the base plate in a first direction, wherein the clamping mechanism comprises a clamping bolt vertically arranged on the base plate, a fixed pressure plate sleeved on the clamping bolt, a nut for pressing the fixed pressure plate onto the specimen, and an elastic member sleeved on the clamping bolt and located between the base plate and the fixed pressure plate, wherein the clamping bolt is located between the support block and the specimen support, or between two adjacent specimen supports.

[0006] In some of the embodiments, a positioning mechanism is provided at the bottom of the base plate for positioning the base plate in a positioning groove of a machine tool worktable, the positioning mechanism comprising a positioning pin sleeve, a positioning pin fixed on the positioning pin sleeve, and a limit pin transversely penetrated through the positioning pin and extending to both radial sides of the positioning pin, a positioning pin groove for the positioning pin to pass through is provided on the base plate, the positioning pin groove has a positioning pin hole matching the positioning pin, a blocking portion of the limit pin is formed between the positioning pin hole and the inner wall of the positioning pin groove, the inner diameter of the positioning pin groove matches the limit pin, and the positioning pin sleeve is removably fixed to the bottom of the base plate by screws.

[0007] In some of the embodiments, guide pins are vertically disposed on the support block and the sample holder, respectively, and guide holes matching the guide pins are disposed on the fixed pressure plate.

[0008] In some of the embodiments, the guide hole is a waist-shaped hole.

[0009] In some of the embodiments, handles are provided at both ends of the bottom plate in the length direction.

[0010] In some of the embodiments, a gasket is provided between the nut and the fixed pressure plate.

[0011] In some of the embodiments, two ends of the base plate in the first direction are respectively provided with mounting fixing bolt holes for fixing the base plate on a machine tool workbench.

[0012] In some of the embodiments, the bottom plate is provided with a waist-shaped groove for the clamping bolt to pass through.

[0013] In some of the embodiments, the sample holder matches the shape of the sample.

[0014] In some embodiments, two clamping assemblies are provided on the bottom plate, and the two clamping assemblies are arranged parallel to each other.

[0015] Compared with the prior art, the advantages of the present invention are:

[0016] 1. By adopting the technical solution of the present invention, the clamping device can accurately clamp and position the plate-shaped tensile specimen, and can process multiple specimens at the same time, thereby improving the processing accuracy and work efficiency;

[0017] 2. By adopting the technical solution of the present invention, a positioning mechanism is arranged at the bottom of the base plate, so that the clamping device can be accurately positioned on the machine tool workbench, eliminating the process of using a gauge for alignment and adjustment, and saving the installation time of the plate-shaped tensile test bar processing fixture;

[0018] 3. By adopting the technical solution of the present invention, the elastic member in the clamping mechanism can improve the clamping degree of the clamping mechanism. After the processing is completed, the nut is loosened and the fixed pressure plate is lifted up under the action of the elastic member, which is convenient for disassembly during the test. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. The accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0020] Figure 1 It is a structural schematic diagram of an embodiment of a clamping device for processing a plate-shaped tensile specimen according to the present invention;

[0021] Figure 2 for Figure 1 AA section view;

[0022] Figure 3 for Figure 2 The local enlarged view of point I in the middle;

[0023] Figure 4 for Figure 1 BB cross-sectional view;

[0024] Figure 5 It is the installation schematic diagram of the present invention;

[0025] Figure 6 for Figure 5 CC section view;

[0026] in:

[0027] 1. Bottom plate; 1-1. Positioning pin groove; 1-2. Installation fixing bolt hole;

[0028] 2. Clamping assembly; 2-1. Support block; 2-2. Sample support; 2-3. Clamping mechanism; 2-3a. Clamping bolt; 2-3b. Fixed pressure plate; 2-3c. Nut; 2-3d. Elastic member; 2-3e. Guide hole;

[0029] 3. Sample;

[0030] 4. Guide pin;

[0031] 5. Gasket;

[0032] 6. Positioning mechanism; 6-1. Positioning pin sleeve; 6-2. Positioning pin; 6-3. Limit pin; 6-4. Screw;

[0033] 7. Blocking part;

[0034] 8. Handle;

[0035] 9. Machine tool workbench; 9-1. Positioning slot;

[0036] 10. Fix the bolts. DETAILED DESCRIPTION

[0037] The above scheme is further described below in conjunction with specific examples. It should be understood that these examples are used to illustrate the present invention and are not limited to the scope of the present invention. The implementation conditions adopted in the examples can be further adjusted according to the conditions of the specific manufacturer, and the unspecified implementation conditions are usually the conditions in conventional experiments.

[0038] See also Figure 1-6 , is a schematic diagram of the structure of the present invention, which provides a clamping device for processing a plate-shaped tensile specimen, including a bottom plate 1, and two clamping assemblies 2 arranged in parallel on the bottom plate 1, the bottom plate 1 is in a long strip shape, the clamping assembly 2 includes a pair of support blocks 2-1, three specimen supports 2-2 arranged between the pair of support blocks 2-1, and a clamping mechanism 2-3 for pressing the specimen 3 on the specimen supports 2-2, the pair of support blocks 2-1 includes two support blocks 2-1 respectively arranged at both ends of the bottom plate 2-1 in the length direction. It should be understood that in practice, the number of clamping assemblies 2 and specimen supports 2-2 can be set according to actual needs, and the present invention does not limit it here.

[0039] The clamping mechanism 2-3 includes a clamping bolt 2-3a vertically arranged on the base plate 1, a fixed pressure plate 2-3b sleeved on the clamping bolt 2-3a, a nut 2-3c for clamping the fixed pressure plate 2-3b on the sample 3, and an elastic member 2-3d sleeved on the clamping bolt 2-3a and located between the base plate 1 and the fixed pressure plate 2-3b. The clamping bolt 2-3a is arranged between the support block 2-1 and the sample holder 2-2, and between two adjacent sample holders 2-2.

[0040] In order to prevent the fixed platen 2-3b from deflecting, guide pins 4 are provided on the support block 2-1 and the sample support 2-2. At the same time, a guide hole 2-3e matching the guide pin 4 is provided on the fixed platen 2-3b. Preferably, the guide hole 2-3e is a waist-shaped hole to facilitate the adjustment of the position of the fixed platen 2-3b.

[0041] In order to improve the clamping stability, a gasket 5 is provided between the nut 2-3c and the fixed pressure plate 2-3b.

[0042] In order to facilitate the positioning of the clamping device in the T-shaped positioning groove 9-1 on the machine tool worktable 9 to ensure the position accuracy of the clamping device and the machine tool worktable 9, a positioning mechanism 6 is provided at the bottom of the base plate 1, and the positioning mechanism 6 includes a positioning pin sleeve 6-1, a positioning pin 6-2 fixed on the positioning pin sleeve 6-1, and a limit pin 6-3 transversely penetrated on the positioning pin 6-2 and extended to the radial sides of the positioning pin 6-2. A positioning pin groove 1-1 for the positioning pin 6-2 to pass through is provided on the base plate 1. The positioning pin groove 1-1 has a positioning pin hole matching the positioning pin 6-2, and a blocking portion 7 for the limit pin 6-3 is formed between the positioning pin hole and the inner wall of the positioning pin groove 1-1. The inner diameter of the positioning pin groove 1-1 matches the limit pin 6-3, and the positioning pin sleeve 6-1 is detachably fixed to the bottom of the base plate 1 by screws 6-4.

[0043] In order to facilitate the adjustment of the position of the clamping bolt 2 - 3 a , a waist-shaped groove is provided on the base plate 1 for the clamping bolt 2 - 3 a to pass through.

[0044] In order to facilitate fixing the clamping device on the machine tool workbench 9 , mounting fixing bolt holes 1 - 2 are respectively provided at both ends of the base plate 1 in the length direction, and the base plate 1 is fixed on the machine tool workbench 9 by fixing bolts 10 .

[0045] In this example, the shape of the sample support 2 - 2 matches the sample 3 , which makes it easy for the operator to see the machining allowances on both sides of the sample 3 and ensures that the sample 3 has enough allowance to meet the machining requirements.

[0046] The above examples are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with the technology to understand the content of the present invention and implement it accordingly, and they cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. Clamping device for processing plate tensile specimens, Features: The invention comprises a base plate (1), and at least one clamping assembly (2) arranged on the base plate (1), the clamping assembly (2) comprising a pair of support blocks (2-1), at least one sample support (2-2) arranged between the pair of support blocks (2-1), and a pressing mechanism (2-3) for pressing a sample (3) onto the sample support (2-2), the pair of support blocks (2-1) comprising two support blocks (2-1) respectively arranged at two ends of the base plate (1) in a first direction, the pressing mechanism (2-3) comprising a vertically arranged sample support (2-3) and a sample support (2-2) arranged between the pair of support blocks (2-1). 1), a clamping bolt (2-3a) on the clamping bolt (2-3a), a fixed pressure plate (2-3b) sleeved on the clamping bolt (2-3a), a nut (2-3c) for pressing the fixed pressure plate (2-3b) on the sample (3), and an elastic member (2-3d) sleeved on the clamping bolt (2-3a) and located between the base plate (1) and the fixed pressure plate (2-3b), wherein the clamping bolt (2-3a) is located between the support block (2-1) and the sample support (2-2), or between two adjacent sample supports (2-2); The support block (2-1) and the sample support (2-2) are respectively provided with guide pins (4) vertically, the fixed pressure plate (2-3b) is provided with guide holes (2-3e) matching the guide pins (4), and the fixed pressure plate (2-3b) is respectively provided with the guide pins (4) on both radial sides of the clamping bolt (2-3a); The bottom of the base plate (1) is provided with a positioning mechanism (6) for positioning the base plate (1) in a positioning groove (9-1) of a machine tool worktable (9), the positioning mechanism (6) comprising a positioning pin sleeve (6-1), a positioning pin (6-2) fixed on the positioning pin sleeve (6-1), and a stop pin (6-3) transversely inserted through the positioning pin (6-2) and extending to both radial sides of the positioning pin (6-2), the base plate (1) is provided with a stop pin for the positioning pin The positioning pin groove (1-1) passes through the positioning pin (6-2), the positioning pin groove (1-1) has a positioning pin hole matching the positioning pin (6-2), a blocking portion (7) of the limiting pin (6-3) is formed between the positioning pin hole and the inner wall of the positioning pin groove (1-1), the inner diameter of the positioning pin groove (1-1) matches the limiting pin (6-3), and the positioning pin sleeve (6-1) is detachably fixed to the bottom of the base plate (1) by a screw (6-4).

2. The clamping device for processing a plate-shaped tensile specimen according to claim 1, Features: The guide hole (2-3e) is a waist-shaped hole.

3. The clamping device for processing a plate-shaped tensile specimen according to claim 1, Features: Handles (8) are respectively provided at both ends of the bottom plate (1) in the length direction.

4. The clamping device for processing a plate-shaped tensile specimen according to claim 1, Features: A gasket (5) is provided between the nut (2-3c) and the fixed pressure plate (2-3b).

5. The clamping device for processing a plate-shaped tensile specimen according to claim 1, Features: Both ends of the base plate (1) in the first direction are respectively provided with mounting fixing bolt holes (1-2) for fixing the base plate (1) on a machine tool workbench (9).

6. The clamping device for processing a plate-shaped tensile specimen according to claim 1, Features: The bottom plate (1) is provided with a waist-shaped groove for the clamping bolt (2-3a) to pass through.

7. The clamping device for processing a plate-shaped tensile specimen according to claim 1, Features: The sample support (2-2) matches the shape of the sample (3).

8. The clamping device for processing a plate-shaped tensile specimen according to any one of claims 1 to 7, Features: Two clamping assemblies (2) are provided on the bottom plate (1), and the two clamping assemblies (2) are arranged parallel to each other.

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