Auxiliary positioning clamp for tensile test

Abstract

The utility model relates to the technical field of tensile test equipment, and discloses an auxiliary positioning clamp for a tensile test, which comprises a mounting table, a buffer pad is fixedly connected to the bottom of the mounting table, an adjusting mounting mechanism is arranged at the top of the mounting table, and an auxiliary clamping mechanism is arranged at the top of the adjusting mounting mechanism. The adjusting and installing mechanism comprises an installing assembly and an adjusting assembly, the installing assembly is arranged in the installing table, the adjusting assembly is arranged at the top of the installing table, in the using process, the position of an installing block can be conveniently adjusted through rotation of a worm and cooperation with a worm gear, and therefore the tensile testing machines of different models can be adjusted and installed; through movement of a first threaded rod and cooperation with a first limiting rod, the positions of two sets of supporting plates can be adjusted conveniently, so that the two sets of clamping tables are located at the same plane position, follow-up clamping testing is facilitated, through work of a motor, a bidirectional threaded rod is made to rotate, and workpieces of different shapes can be clamped in the same midline conveniently.

Description

TECHNICAL FIELD

[0001] The utility model relates to tensile test equipment technical field, concretely is a kind of auxiliary positioning fixture for tensile test. BACKGROUND

[0002] Tensile test generally includes the following steps under normal circumstances: preparation of tensile specimen (including machining, sample surface dotting, sample size measurement), adjusting testing machine (including setting test parameters), clamping tensile specimen, test, taking out tensile specimen, measuring tensile specimen after breaking gauge length, auxiliary positioning fixture is often needed to clamp workpiece during test process.

[0003] According to the auxiliary positioning fixture for tensile test (authorization announcement number: CN213456399U) described in the patent network, "the utility model discloses an auxiliary positioning fixture for tensile test, comprising: mounting seat, the mounting seat is formed with tensile station, for placing the workpiece to be clamped;Clamping structure, including a plurality of clamping pieces movably arranged on the mounting seat, a plurality of the clamping pieces are arranged around the tensile station, and all have the activity stroke close to and away from the tensile station, to position the workpiece to be clamped in the tensile station;Positioning assembly, which is arranged in an upper and lower staggered manner with the clamping structure, includes a first positioning piece extending longitudinally and a second positioning piece extending transversely, and the positioning assembly is used to position the position of the workpiece to be clamped on the mounting seat. The auxiliary positioning fixture for tensile test provided by the utility model aims to solve the problems of complex manual clamping tensile specimen process and poor sample center clamping effect in traditional technology, which affects the tensile test results.

[0004] For the above description, the applicant believes that there are the following problems:

[0005] In the use process of the utility model, the workpiece to be clamped is positioned in the tensile station;The first positioning piece extending longitudinally and the second positioning piece extending transversely both have the activity stroke close to and away from the tensile station, and the position of the workpiece to be clamped on the mounting seat is positioned by the first positioning piece and the second positioning piece. In actual use, since the device uses four groups of screws to clamp the workpiece, the relative position of the workpiece needs to be adjusted by the worker many times, which leads to the error in the use process. Therefore, an auxiliary positioning fixture for tensile test is needed to solve the above problems. UTILITY MODEL CONTENTS

[0006] The utility model aims to provide an auxiliary positioning fixture for tensile test to solve the problems raised in the background art.

[0007] In order to achieve the above object, the utility model provides the following technical scheme: an auxiliary positioning fixture for tensile test, including installation platform, the bottom fixed connection of installation platform has the buffer pad, the top of installation platform is provided with adjusting installation mechanism, the top of adjusting installation mechanism is provided with auxiliary clamping mechanism,

[0008] The adjusting installation mechanism comprises an installation assembly and an adjusting assembly, the installation assembly is arranged in the installation platform, and the adjusting assembly is arranged on the top of the installation platform.

[0009] Preferably, the installation assembly comprises a worm, the worm is rotatably connected in the installation platform, a worm wheel is rotatably connected in the installation platform, a limiting plate is fixedly connected to the top of the worm wheel, a guide rail is fixedly connected in the installation platform, a sliding plate is slidably connected in the guide rail, a connecting column is fixedly connected to the top of the sliding plate, an installation plate is fixedly connected to the end of the sliding plate away from the installation platform, and an installation block is arranged in the installation plate.

[0010] Preferably, the worm wheel is engaged with the worm, and a groove is formed in the corresponding position of the limiting plate and the connecting column, and the connecting column is in contact with the limiting plate, so that the installation process is more stable.

[0011] Preferably, the adjusting assembly comprises a connecting table, the connecting table is fixedly connected to the top of the installation platform, a first threaded rod is rotatably connected in the connecting table, a first limiting rod is fixedly connected in the connecting table, a movable block is slidably connected to the outside of the first limiting rod, a support plate is fixedly connected to the top of the movable block, a gas cylinder is fixedly connected to the outside of the support plate, and a first clamping plate is fixedly connected to the end of the gas cylinder close to the support plate.

[0012] Preferably, the movable block is threadedly connected with the first threaded rod, and a groove is formed in the corresponding position of the connecting table and the movable block, and the movable block is slidably connected in the groove, so that the adjusting process is more stable.

[0013] Preferably, the auxiliary clamping mechanism comprises a clamping table, the clamping table is fixedly connected to the top of the support plate, a motor is fixedly connected to the front of the clamping table, a bidirectional threaded rod is fixedly connected to the output end of the motor extending to the inside through the clamping table, a second limiting rod is fixedly connected in the clamping table, a movable plate is slidably connected to the outside of the second limiting rod, a supporting block is fixedly connected in the clamping table, a second clamping plate is arranged at the end of the movable plate close to the supporting block, and a locking bolt is arranged between the second clamping plate and the movable plate.

[0014] Preferably, the bidirectional threaded rod is rotatably connected with the supporting block, the movable plate is threadedly connected with the bidirectional threaded rod, and the movable plate is slidably connected with the clamping table, so that the clamping process is more stable.

[0015] Compared with the prior art, the auxiliary positioning clamp for tensile testing has the following beneficial effects:

[0016] 1. The auxiliary positioning clamp for tensile testing is provided with an adjusting and installing mechanism, in the using process, the worm is rotated, the worm gear is matched, the position of the installing block is adjusted, different tensile testing machines are installed and adjusted, the applicability is increased, the first threaded rod is moved, the first limiting rod is matched, the positions of the two groups of supporting plates are adjusted, the two groups of clamping tables are in the same plane position, and subsequent clamping test is facilitated.

[0017] 2. The auxiliary positioning clamp for tensile testing is provided with an auxiliary clamping mechanism, in the using process, the motor works, the bidirectional threaded rod is rotated, workpieces with different shapes are clamped along the center line, and the test precision is increased. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical scheme in the embodiments of the present application, the drawings needed to be used in the embodiment description will be briefly introduced. 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 without creative labor under the premise of the drawings:

[0019] Figure 1 It is a front structure schematic view of the present application;

[0020] Figure 2 It is an installation assembly structure schematic view of the present application;

[0021] Figure 3 It is an adjusting assembly structure schematic view of the present application;

[0022] Figure 4 It is an adjusting assembly internal structure schematic view of the present application;

[0023] Figure 5 It is an auxiliary clamping mechanism structure schematic view of the present application;

[0024] Figure 6 It is an auxiliary clamping mechanism internal structure schematic view of the present application.

[0025] In the figure: 1, installation platform; 2, buffer pad; 3, adjusting installation mechanism; 31, installation assembly; 311, worm; 312, worm gear; 313, limiting plate; 314, guide rail; 315, sliding plate; 316, connecting column; 317, mounting plate; 318, mounting block; 32, adjusting assembly; 321, connecting table; 322, first threaded rod; 323, support plate; 324, air cylinder; 325, first clamping plate; 326, first limiting rod; 327, movable block; 4, auxiliary clamping mechanism; 41, clamping table; 42, motor; 43, movable plate; 44, second clamping plate; 45, locking bolt; 46, bidirectional threaded rod; 47, second limiting rod; 48, support block. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0027] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting", "fixing" and the like should be understood in a broad sense, for example, can be fixedly connected, or can be detachably connected, or can be integrated; can be mechanically connected, or can be electrically connected; can be directly connected, or can be indirectly connected through an intermediate medium; can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0028] Embodiment one:

[0029] Please refer to Figures 1-4 The present application provides a technical scheme: an auxiliary positioning clamp for tensile test, comprising an installation platform 1, the bottom of the installation platform 1 is fixedly connected with a buffer pad 2, the top of the installation platform 1 is provided with an adjusting installation mechanism 3, and the top of the adjusting installation mechanism 3 is provided with an auxiliary clamping mechanism 4.

[0030] The adjusting installation mechanism 3 comprises an installation assembly 31 and an adjusting assembly 32, the installation assembly 31 is arranged in the installation platform 1, and the adjusting assembly 32 is arranged at the top of the installation platform 1.

[0031] Further, the mounting assembly 31 comprises a worm 311 rotatably connected in the mounting table 1, a worm wheel 312 rotatably connected in the mounting table 1, a limiting plate 313 fixedly connected to the top of the worm wheel 312, a guide rail 314 fixedly connected in the mounting table 1, a sliding plate 315 slidably connected in the guide rail 314, a connecting column 316 fixedly connected to the top of the sliding plate 315, an installation plate 317 fixedly connected to the end of the sliding plate 315 away from the mounting table 1, and an installation block 318 arranged in the installation plate 317, so as to adjust the position of the installation block 318, to meet the adjustment and installation of different types of tensile testing machines and increase the applicability.

[0032] Further, the worm wheel 312 is engaged with the worm 311, and the limiting plate 313 is provided with a groove at a position corresponding to the connecting column 316, and the connecting column 316 is in contact with the limiting plate 313, so as to make the installation process more stable.

[0033] Further, the adjusting assembly 32 comprises a connecting table 321 fixedly connected to the top of the mounting table 1, a first threaded rod 322 rotatably connected in the connecting table 321, a first limiting rod 326 fixedly connected in the connecting table 321, a movable block 327 slidably connected to the outside of the first limiting rod 326, a support plate 323 fixedly connected to the top of the movable block 327, a gas cylinder 324 fixedly connected to the end of the support plate 323, and a first clamping plate 325 fixedly connected to the end of the gas cylinder 324 close to the support plate 323, so as to adjust the positions of the two sets of support plates 323, to meet the condition that the two sets of clamping tables 41 are in the same plane position, and to facilitate subsequent clamping test.

[0034] Further, the movable block 327 is threadedly connected with the first threaded rod 322, and the connecting table 321 is provided with a groove at a position corresponding to the movable block 327, and the movable block 327 is slidably connected in the groove, so as to make the adjusting process more stable.

[0035] Embodiment two:

[0036] Please refer to Figures 5-6 Further obtained in combination with embodiment one, the auxiliary clamping mechanism 4 comprises a clamping table 41 fixedly connected to the top of the support plate 323, a motor 42 fixedly connected to the front of the clamping table 41, a bidirectional threaded rod 46 fixedly connected to the inside of the clamping table 41 through the extension of the output end of the motor 42, a second limiting rod 47 fixedly connected in the clamping table 41, a movable plate 43 slidably connected to the outside of the second limiting rod 47, a support block 48 fixedly connected in the clamping table 41, a second clamping plate 44 arranged at the end of the movable plate 43 close to the support block 48, and a locking bolt 45 arranged between the second clamping plate 44 and the movable plate 43, so as to realize the clamping of workpieces of different shapes with the same center line and increase the test precision.

[0037] Further, the bidirectional threaded rod 46 is rotatably connected with the support block 48, the movable plate 43 is threadedly connected with the bidirectional threaded rod 46, and the movable plate 43 is slidably connected with the clamping table 41, so that the clamping process is more stable.

[0038] In actual operation, when the device is used, first, the installation is adjusted according to the type of the tensile testing machine, the worker rotates the worm 311, the worm 311 is arranged to rotate, the worm gear 312 is matched, the limiting plate 313 is moved, the connecting column 316 is matched, the sliding plate 315 is slid in the guide rail 314, the mounting plate 317 is moved, the installation block 318 is adjusted, one group is installed to the fixed table of the tensile testing machine, and the other group is installed to the main shaft position of the tensile testing machine, after the installation is completed, the relative positions of the two groups of clamping devices are adjusted, the worker rotates the first threaded rod 322, the first threaded rod 322 is arranged to move, the first limiting rod 326 is matched, the movable block 327 is moved, the support plate 323 is moved, after the adjustment is completed, the worker places the workpiece to be tested on the top of the clamping table 41, the motor 42 is arranged to work, the bidirectional threaded rod 46 is rotated, the second limiting rod 47 is matched, the movable plate 43 is moved, the locking bolt 45 is arranged, the second clamping plate 44 and the movable plate 43 are installed, the second clamping plate 44 is matched with the movable plate 43 to move until the workpiece is clamped, after the clamping is completed, the cylinder 324 is arranged to work, the first clamping plate 325 is moved, and abuts against the workpiece, so that the workpiece is limited.

[0039] It should be noted that, in the present document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. An element proceeded by "comprises... a" does not, without more constraints, exclude the presence of additional identical elements in the process, method, article, or apparatus that comprises the element.

Claims

1. An auxiliary positioning jig for tensile tests, comprising a mounting table (1), characterised in that: The bottom of the mounting table (1) is fixedly connected with a buffer pad (2), the top of the mounting table (1) is provided with an adjusting mounting mechanism (3), and the top of the adjusting mounting mechanism (3) is provided with an auxiliary clamping mechanism (4). The adjusting mounting mechanism (3) comprises an installation assembly (31) and an adjusting assembly (32), the installation assembly (31) is arranged in the mounting table (1), and the adjusting assembly (32) is arranged on the top of the mounting table (1).

2. An auxiliary positioning fixture for tensile testing according to claim 1, characterized in that: The installation assembly (31) comprises a worm (311), the worm (311) is rotatably connected in the mounting table (1), a worm wheel (312) is rotatably connected in the mounting table (1), a limiting plate (313) is fixedly connected to the top of the worm wheel (312), a guide rail (314) is fixedly connected in the mounting table (1), a sliding plate (315) is slidably connected in the guide rail (314), a connecting column (316) is fixedly connected to the top of the sliding plate (315), an installation plate (317) is fixedly connected to the end of the sliding plate (315) away from the mounting table (1), and an installation block (318) is arranged in the installation plate (317).

3. An auxiliary positioning fixture for tensile testing according to claim 2, characterized in that: The worm wheel (312) is engaged with the worm (311), and grooves are formed in the corresponding positions of the limiting plate (313) and the connecting column (316).

4. An auxiliary positioning fixture for tensile testing according to claim 1, characterized in that: The adjusting assembly (32) comprises a connecting table (321), the connecting table (321) is fixedly connected to the top of the mounting table (1), a first threaded rod (322) is rotatably connected in the connecting table (321), a first limiting rod (326) is fixedly connected in the connecting table (321), a movable block (327) is slidably connected to the outside of the first limiting rod (326), a supporting plate (323) is fixedly connected to the top of the movable block (327), a gas cylinder (324) is fixedly connected to the outside of the supporting plate (323), and a first clamping plate (325) is fixedly connected to the end of the gas cylinder (324) close to the supporting plate (323).

5. An auxiliary positioning fixture for tensile testing according to claim 4, characterized in that: The movable block (327) is threadedly connected with the first threaded rod (322), grooves are formed in the corresponding positions of the connecting table (321) and the movable block (327), and the movable block (327) is slidably connected in the grooves.

6. An auxiliary positioning fixture for tensile testing according to claim 4, characterized in that: The auxiliary clamping mechanism (4) comprises a clamping table (41), the clamping table (41) is fixedly connected to the top of the supporting plate (323), a motor (42) is fixedly connected to the front of the clamping table (41), a bidirectional threaded rod (46) is fixedly connected to the output end of the motor (42) extending to the inside of the clamping table (41), a second limiting rod (47) is fixedly connected in the clamping table (41), a movable plate (43) is slidably connected to the outside of the second limiting rod (47), a supporting block (48) is fixedly connected in the clamping table (41), a second clamping plate (44) is arranged on the end of the movable plate (43) close to the supporting block (48), and locking bolts (45) are arranged between the second clamping plate (44) and the movable plate (43).

7. An auxiliary positioning fixture for tensile testing according to claim 6, characterized in that: The bidirectional threaded rod (46) is rotationally connected with the supporting block (48), the movable plate (43) is threadedly connected with the bidirectional threaded rod (46), and the movable plate (43) is slidingly connected with the clamping table (41).

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