Precise shearing jig for sample after diffusion welding

By combining a cylinder-driven first clamping assembly and a hydraulically driven cutter with a spring damper and a second clamping assembly, the problems of cumbersome operation and sample damage of traditional fixtures are solved, achieving simple, efficient multi-directional clamping and stable cutting.

CN223588395UActive Publication Date: 2025-11-25ZHEJIANG ELECTROMECHANICAL VOCATIONAL & TECH COLLEGE
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Patent Information

Application Number
CN202423146685.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-19
Publication Date
2025-11-25
Estimated Expiration
2034-12-19

AI Technical Summary

Technical Problem

Traditional precision shearing fixtures are cumbersome to operate during clamping and cutting, and can easily damage the sample, affecting the experimental results.

Method used

The system employs a first clamping assembly driven by a pneumatic cylinder and a cutter driven by a hydraulic cylinder, combined with a spring damper and a second clamping assembly, to achieve multi-directional clamping and stable cutting, avoid tool assistance, and adaptively adjust the clamping force.

Benefits of technology

It enables simple clamping and cutting without the need for tools, avoids sample damage, ensures the stability of the cutting process, and avoids vibration and slippage.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a precise shearing jig for a sample after diffusion welding, and relates to the technical field of welding sampling, the precise shearing jig comprises a bottom plate, the upper end of the bottom plate is fixedly connected with a fixed base, the front side and the rear side of the upper end of the bottom plate are both fixedly connected with mounting frames, and the opposite ends of the two mounting frames are fixedly provided with telescopic cylinders; a first clamping assembly is fixedly installed at the output end of the telescopic air cylinder, a supporting frame is fixedly connected to the upper end of the fixed base, a hydraulic cylinder is fixedly installed on the left side of the upper end of the supporting frame, the output end of the hydraulic cylinder penetrates through a top plate of the supporting frame and is fixedly connected with a moving plate, and a cutter is fixedly installed at the lower end of the moving plate. According to the device, the two clamping assemblies are matched with each other, so that a workpiece is clamped in multiple directions, the stability of the workpiece is guaranteed, meanwhile, vibration and impact borne by the workpiece can be effectively restrained through a spring damper, and the stability of the workpiece is further guaranteed.
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Description

TECHNICAL FIELD

[0001] The utility model relates to welding sampling technical field, concretely relates to a precision shearing jig for diffusion welding post -test sample. BACKGROUND

[0002] Diffusion welding is a method that uses atomic diffusion to join two metal surfaces together at high temperatures, commonly used for high-precision and high-strength connections. Diffusion welding post-test samples usually refer to metal or material samples connected by diffusion welding process. Diffusion welding post-test samples are mainly used for mechanical property testing, microstructure observation, and fatigue or corrosion testing research to understand the impact of welding process on material properties.

[0003] The precision shearing jig can provide accurate cutting requirements without affecting the structure of the test sample, ensuring that the material is not affected during the shearing process and maintaining its physical and chemical properties to provide high-quality samples for subsequent analysis and testing.

[0004] Traditional precision shearing jigs often use screws, nuts, and pressure plates to firmly clamp the workpiece. During installation and removal, tools such as wrenches and screwdrivers are needed for assistance, making the overall operation relatively cumbersome. Additionally, excessive clamping force during fixation can damage the test sample, affecting subsequent experiments. To address these issues, the present invention provides a precision shearing jig for diffusion welding post-test samples. INVENTION CONTENTS

[0005] To solve the above technical problems, a precision shearing jig for diffusion welding post-test samples is provided, which solves the problems mentioned in the background technology.

[0006] To achieve the above purposes, the technical solution adopted by the utility model is as follows:

[0007] A precision shearing jig for diffusion welding post-test samples, comprising a base plate, the upper end of the base plate is fixedly connected with a fixed base, the upper end of the base plate is fixedly connected with a mounting bracket on both sides, the opposite ends of the two mounting brackets are fixedly installed with telescopic cylinders, the output end of the telescopic cylinder is fixedly installed with a first clamping assembly, the upper end of the fixed base is fixedly connected with a support frame, the upper left side of the support frame is fixedly installed with a hydraulic cylinder, the output end of the hydraulic cylinder penetrates the top plate of the support frame and is fixedly connected with a moving plate, the upper end of the moving plate is fixedly connected with guide rods on both sides, the upper end of the guide rod is slidingly connected with the support frame and extends out to be fixedly connected with a limiting block, the lower end of the moving plate is fixedly installed with a cutter, the left and right sides of the cutter are provided with second clamping assemblies.

[0008] Preferably, the upper end of the fixed base is provided with a placing groove, a pair of grooves and a cutter groove, the two grooves are communicated with the placing groove and are symmetrically arranged on the front and back sides of the placing groove, the first clamping assembly is arranged on the inner side of the groove, and the cutter groove is arranged on the lower side of the cutter.

[0009] Preferably, the first clamping assembly comprises a moving frame, one end of the moving frame is fixedly connected with the output end of the telescopic cylinder, the other end of the moving frame is fixedly installed with a pair of telescopic rods and a spring damper, the spring damper is arranged between the two telescopic rods, and the other end of the telescopic rod and the spring damper is fixedly connected with the first clamping plate, and the other end of the first clamping plate is fixedly connected with a first anti-skid pad.

[0010] Preferably, the surface of the telescopic rod is sleeved with a first spring, and the two ends of the first spring are fixedly connected with the moving frame and the first clamping plate respectively.

[0011] Preferably, the left and right sides of the moving frame are slidably connected with first slide rods, one end of the first slide rod is fixedly connected with the first clamping plate, and the other end of the first slide rod is fixedly connected with a limiting piece.

[0012] Preferably, the second clamping assembly comprises a second slide rod, the surface of the second slide rod is slidably connected with a moving plate, the lower end of the second slide rod is fixedly connected with a second clamping plate, the lower end of the second clamping plate is fixedly connected with a second anti-skid pad, the lower side surface of the second clamping plate is sleeved with a second spring, the upper and lower ends of the second spring are fixedly connected with the moving plate and the second clamping plate respectively, and the upper end of the second slide rod is fixedly connected with a limiting rod.

[0013] Compared with the prior art, the utility model provides a kind of precision shearing jig for diffusion after welding sample, with the following beneficial effects:

[0014] 1. In the utility model, the first clamping assembly is provided, the sample workpiece is placed in the placing groove, then the first clamping assembly is started, driven by the telescopic cylinder on both sides, so that the first clamping plate on both sides approaches the sample workpiece, until the first clamping plate contacts the workpiece, then continue to extrude, so that the telescopic rod and the first spring shrink, and the first spring further provides a counter force to the first clamping plate, so that the first clamping plate extrudes and clamps the sample workpiece, the whole clamping process is simple and effective, without additional tools for assistance, the telescopic rod cooperates with the first spring to provide certain adjusting capacity during clamping, so that the first clamping assembly can be self-adaptively adjusted according to the softness of the sample workpiece, to avoid the case that the clamping force is too large and the sample is damaged, and at the same time, when the cutter cuts and samples the workpiece, the spring damper can effectively suppress the vibration and impact of the workpiece, to ensure the stability of the workpiece and avoid movement or sliding.

[0015] 2. The utility model discloses a second clamping assembly is provided with, when the first clamping assembly is clamped to work piece, subsequently hydraulic cylinder starts, drives the cutter and cuts work piece, at this moment the second clamping plate of second clamping assembly first step and work piece upper end surface contact, subsequently the cutter continues to move down, make the second spring be extruded, and then make the second clamping plate can clamp the upper end of work piece and restrict, through the mutual cooperation of first clamping assembly and second clamping assembly, thereby work piece is clamped in many directions, further guarantee the stability of work piece, avoid work piece to move or slide. BRIEF DESCRIPTION OF DRAWINGS

[0016] Fig. 1 It is whole structure schematic diagram of the utility model;

[0017] Fig. 2 It is structure schematic diagram of first clamping assembly in the utility model;

[0018] Fig. 3 It is structure schematic diagram of second clamping assembly in the utility model.

[0019] Reference numerals in the drawing are:

[0020] 1, bottom plate;2, fixed base;201, place groove;202, slot;203, cutter slot;3, mounting frame;4, telescopic cylinder;5, first clamping assembly;501, moving frame;502, telescopic link;503, first spring;504, spring damper;505, first clamping plate;506, first antiskid pad;507, first slide bar;508, limiting piece;6, support frame;7, hydraulic cylinder;8, moving plate;9, cutter;10, second clamping assembly;1001, second slide bar;1002, second clamping plate;1003, second antiskid pad;1004, second spring;1005, limiting rod;11, guide rod;1101, limiting block. DETAILED DESCRIPTION

[0021] The following description is used to disclose the utility model to enable those skilled in the art to realize the utility model. The preferred embodiments in the following description are only as examples, and other obvious variants can be thought of by those skilled in the art.

[0022] Reference Figs. 1-3As shown, a precision shear jig for diffusion of post-weld test sample, including the bottom plate 1, the upper end of the fixed base 2 is connected with the fixed base 2, the upper end of the bottom plate 1 is fixedly connected with the mounting frame 3, the opposite end of the two mounting frames 3 is fixedly connected with the telescopic cylinder 4, the output end of the telescopic cylinder 4 is fixedly connected with the first clamping assembly 5, the upper end of the fixed base 2 is fixedly connected with the support frame 6, the upper end of the left side of the support frame 6 is fixedly connected with the hydraulic cylinder 7, the output end of the hydraulic cylinder 7 penetrates the top plate of the support frame 6 and is fixedly connected with the moving plate 8, the upper end of the moving plate 8 is fixedly connected with the guide rod 11, the upper end of the guide rod 11 is slidably connected with the support frame 6 and extends out to be fixedly connected with the limiting block 1101, the lower end of the moving plate 8 is fixedly connected with the cutter 9, and the left and right sides of the cutter 9 are provided with the second clamping assembly 10. The sample workpiece is placed in the placing groove 201, then the first clamping assembly 5 is started, driven by the telescopic cylinder 4 on both sides, the side of the workpiece is clamped, then the hydraulic cylinder 7 is started, the cutter 9 is driven to cut the workpiece, in the moving process, the moving plate 8 can be limited and guided by the guide rod 11, so that the moving plate 8 can move along the predetermined track, and then the stability of the cutter 9 is guaranteed, then the second clamping assembly 10 is in contact with the upper end surface of the workpiece in advance, then the cutter 9 continues to move downward, so that the second clamping assembly 10 can clamp the workpiece, and the workpiece is clamped in multiple directions by the cooperation of the first clamping assembly 5 and the second clamping assembly 10, so as to further guarantee the stability of the workpiece and avoid the movement or sliding of the workpiece.

[0023] Specifically, in the embodiment, the upper end of the fixed base 2 is provided with a placing groove 201, a pair of grooves 202 and a cutter groove 203, the two grooves 202 are communicated with the placing groove 201 and are symmetrically arranged on the front and rear sides of the placing groove 201, the first clamping assembly 5 is arranged on the inner side of the groove 202, and the cutter groove 203 is arranged below the cutter 9.

[0024] Specifically, in the embodiment, the first clamping assembly 5 includes a moving frame 501, one end of the moving frame 501 is fixedly connected with the output end of the telescopic cylinder 4, the other end of the moving frame 501 is fixedly installed with a pair of telescopic rods 502 and a spring damper 504, the spring damper 504 is arranged in the middle of the two telescopic rods 502, and the other end of the telescopic rod 502 and the spring damper 504 is fixedly connected with the first clamping plate 505, the other end of the first clamping plate 505 is fixedly connected with the first anti-skid pad 506. The first clamping assembly 5 is started, driven by the telescopic cylinders 4 on both sides, so that the first clamping plates 505 on both sides approach the sample workpiece until the first clamping plates 505 contact the workpiece, then continue to press, so that the telescopic rods 502 and the first springs 503 shrink, and the first springs 503 further provide a reaction force to the first clamping plates 505, so that the first clamping plates 505 press and clamp the sample workpiece. The whole clamping process is simple and effective, and does not need additional tools for assistance; at the same time, when the cutter 9 cuts and samples the workpiece, the spring damper 504 can effectively suppress the vibration and impact of the workpiece, so as to ensure the stability of the workpiece and avoid moving or sliding.

[0025] Specifically, in the embodiment, the surface of the telescopic rod 502 is sleeved with the first spring 503, and the two ends of the first spring 503 are fixedly connected with the moving frame 501 and the first clamping plate 505 respectively. The telescopic rod 502 cooperates with the first spring 503 to provide certain adjustment capability during clamping, so that the first clamping assembly 5 can adaptively adjust according to the softness of the sample workpiece, avoiding the case that the clamping force is too large and the sample is damaged.

[0026] Specifically, in the embodiment, the moving frame 501 is slidably connected with the first slide rod 507 on the left and right sides, one end of the first slide rod 507 is fixedly connected with the first clamping plate 505, and the other end of the first slide rod 507 is fixedly connected with the limiting piece 508. The first slide rod 507 has similar effect as the guide rod 11, which can limit and guide the movement of the first clamping plate 505, so that the movement trajectory of the first clamping plate 505 is stable, avoiding the error.

[0027] Specifically, in the embodiment, the second clamping assembly 10 comprises a second sliding rod 1001, the surface of the second sliding rod 1001 is slidably connected with the moving plate 8, the lower end of the second sliding rod 1001 is fixedly connected with a second clamping plate 1002, the lower end of the second clamping plate 1002 is fixedly connected with a second anti-skid pad 1003, the lower side surface of the second clamping plate 1002 is sleeved with a second spring 1004, the upper and lower ends of the second spring 1004 are fixedly connected with the moving plate 8 and the second clamping plate 1002 respectively, and the upper end of the second sliding rod 1001 is fixedly connected with a limiting rod 1005.

[0028] The working principle of the utility model is: the sample workpiece is placed in the placing groove 201, then the first clamping assembly 5 is started, the side of the workpiece is clamped by the driving of the telescopic cylinder 4 on both sides: the first clamping plate 505 on both sides is driven to move close to the sample workpiece by the telescopic cylinder 4 on both sides, until the first clamping plate 505 contacts the workpiece, then continues to be extruded, so that the telescopic rod 502 and the first spring 503 are retracted, the first clamping plate 505 is subjected to a counter force by the first spring 503, so that the first clamping plate 505 extrudes and clamps the sample workpiece.

[0029] When the first clamping assembly 5 clamps the workpiece, then the hydraulic cylinder 7 is started, the cutter 9 is driven to cut the workpiece, at this time, the second clamping plate 1002 in the second clamping assembly 10 first contacts the upper end surface of the workpiece, then the cutter 9 continues to move downward, so that the second spring 1004 is extruded, and then the second clamping plate 1002 can clamp and constrain the upper end of the workpiece.

[0030] The device is provided with the first clamping assembly 5 and the second clamping assembly 10, the workpiece is clamped in multiple directions by the cooperation of the first clamping assembly 5 and the second clamping assembly 10, the stability of the workpiece is ensured, and the workpiece is prevented from moving or sliding, the whole clamping process is simple and effective, and no additional tool is needed for assistance; at the same time, when the cutter 9 cuts the workpiece to take a sample, the spring damper 504 in the first clamping assembly 5 can effectively suppress the vibration and impact of the workpiece, further ensure the stability of the workpiece, and prevent the workpiece from moving or sliding.

[0031] The basic principle, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection required by the present application is defined by the appended claims and their equivalents.

Claims

1. A precision shearing fixture for diffusion-welded samples, characterized in that, The utility model relates to a cutting device for cutting board, including bottom plate (1), the upper end of bottom plate (1) is fixedly connected with fixed base (2), the upper end of bottom plate (1) is fixedly connected with mounting bracket (3) in front and back two sides, the opposite end of two mounting bracket (3) is fixedly installed with telescopic pneumatic cylinder (4), the output of telescopic pneumatic cylinder (4) is fixedly installed with first clamping assembly (5), the upper end of fixed base (2) is fixedly connected with support frame (6), the upper end left side of support frame (6) is fixedly installed with hydraulic cylinder (7), the output of hydraulic cylinder (7) is fixedly connected with moving plate (8) and penetrates the top plate of support frame (6), the upper end front and back two sides of moving plate (8) are fixedly connected with guide rod (11), the upper end of guide rod (11) is fixedly connected with limit block (1101) and is extended to the sliding connection with support frame (6), the lower end of moving plate (8) is fixedly installed with cutter (9), and the left and right sides of cutter (9) are provided with second clamping assembly (10).

2. The precision shearing jig for diffusion bonding of post-weld specimens of claim 1, wherein: The upper end left side of fixed base (2) is provided with placing groove (201), a pair of slot (202) and cutter slot (203), two slot (202) are communicated with placing groove (201) and are symmetrically arranged on the front and back of placing groove (201), first clamping assembly (5) is arranged in the inner side of slot (202), and cutter slot (203) is arranged on the lower side of cutter (9).

3. The precision shearing jig for diffusion bonding of post-weld specimens of claim 1, wherein: The first clamping assembly (5) includes a moving frame (501), one end of the moving frame (501) is fixedly connected with the output of the telescopic pneumatic cylinder (4), the other end of the moving frame (501) is fixedly installed with a pair of telescopic rods (502) and spring dampers (504), the spring dampers (504) are arranged between the two telescopic rods (502), and the other ends of the telescopic rods (502) and the spring dampers (504) are fixedly connected with the first clamping plate (505), the other end of the first clamping plate (505) is fixedly connected with the first anti-slip pad (506).

4. The precision shearing jig for diffusion bonding of post-weld specimens of claim 3, wherein: The surface of the telescopic rod (502) is sleeved with a first spring (503), and the two ends of the first spring (503) are fixedly connected with the moving frame (501) and the first clamping plate (505) respectively.

5. The precision shearing jig for diffusion bonding of post-weld specimens of claim 3, wherein: The left and right sides of the moving frame (501) are slidably connected with first sliding rods (507), one end of the first sliding rod (507) is fixedly connected with the first clamping plate (505), and the other end of the first sliding rod (507) is fixedly connected with a limiting piece (508).

6. The precision shearing jig for diffusion bonding of post-weld specimens of claim 1, wherein: The second clamping assembly (10) comprises a second sliding rod (1001), the surface of the second sliding rod (1001) is slidably connected with the moving plate (8), the lower end of the second sliding rod (1001) is fixedly connected with a second clamping plate (1002), the lower end of the second clamping plate (1002) is fixedly connected with a second non-slip pad (1003), the lower side surface of the second clamping plate (1002) is sleeved with a second spring (1004), the upper and lower ends of the second spring (1004) are fixedly connected with the moving plate (8) and the second clamping plate (1002) respectively, and the upper end of the second sliding rod (1001) is fixedly connected with a limiting rod (1005).