A tensile testing machine configured with a quick-attach fixture

Abstract

The utility model provides a kind of tensile testing machine with quick clamping fixture, comprising: tensile subassembly, lower clamp and upper clamp, the upper clamp is fixed in tensile subassembly upper end, the lower clamp is movably installed in tensile subassembly lower side, the tensile subassembly includes base, stand, top plate and screw rod, the left side of base upper end, right side is respectively equipped with one protective cover, compared with prior art, the utility model has the beneficial effects as follows: the lower clamp of split type structure, upper clamp can be clamped to different diameter cable, help to improve equipment cable test range, the setting of clamping block one and clamping block two, without affecting cable clamping speed, still can greatly improve the stability of cable clamping, avoid the situation that cable is separated from the accident in the process of stretching due to unstable clamping, ensure that tensile test can be completed stably.

Description

Technical Field

[0001] This utility model belongs to the technical field of tensile testing equipment, and specifically relates to a tensile testing machine equipped with a quick clamping fixture. Background Technology

[0002] Existing cable tensile testing machines have certain shortcomings in achieving rapid clamping and preventing slippage. Due to the lack of adaptability in the clamping design of some devices, uneven distribution of clamping force on the cable may occur, leading to slippage or insecure clamping. This not only affects the accuracy of test data but may also damage the test sample. In addition, although some anti-slippage designs can theoretically reduce the risk of slippage, they may fail in actual operation due to material friction, insufficient clamping force, and other reasons.

[0003] To address these issues, common approaches include increasing the clamping preload, improving fixture materials, and employing self-locking mechanisms. However, the drawbacks of these methods cannot be ignored. While increasing the preload can improve clamping effectiveness, excessive clamping force may subject the sample to excessive mechanical pressure, thus affecting its physical properties. The introduction of self-locking mechanisms improves anti-detachment performance to some extent, but the complex design and operation procedures may lead to inconvenience in use, especially under high-frequency testing conditions, potentially causing equipment malfunctions due to improper operation. Therefore, we aim to design a tensile testing machine with a novel structure to solve this problem. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a tensile testing machine equipped with a quick clamping fixture, so as to solve the problems mentioned in the background art.

[0005] This utility model is achieved through the following technical solution: a tensile testing machine equipped with a quick clamping fixture, comprising: a tensile component, a lower clamp and an upper clamp, wherein the upper clamp is fixed at the upper end of the tensile component, and the lower clamp is movably installed on the lower side of the tensile component, and the tensile component includes a base, a stand, a top plate and a lead screw.

[0006] A protective cover is installed on the left and right sides of the upper end of the base, and a lead screw is installed on the left and right sides of the upper end of the base. A top plate is fixed to the bottom of the two lead screws.

[0007] The lower clamp includes a mounting base, a clamping block one, and a clamping block two. The clamping block two is slidably mounted on the front side of the upper end of the mounting base, and the clamping block one is slidably mounted on the rear side of the upper end of the mounting base. Both the clamping block one and the clamping block two are internally connected to a screw thread. In actual use, the structure and dimensions of the upper clamp are the same as those of the lower clamp.

[0008] In a preferred embodiment, the tensioning assembly further includes a movable seat and a drive module. The base is equipped with the drive module, and the movable seat is movably mounted on the upper side of the two lead screws. In actual use, the drive module includes a motor, a reducer, a coupling, a drive pulley, a transmission belt, and a driven pulley. The motor is connected to the lower end of one of the lead screws via the reducer, coupling, and drive pulley, and is also connected to the other lead screw via the drive pulley, transmission belt, and driven pulley, ensuring that the two lead screws can rotate synchronously and stably.

[0009] In a preferred embodiment, the upper end of the mounting base is provided with a sliding groove, and a clearance groove is formed through the middle of the upper end of the mounting base from left to right. The clearance groove is connected to the sliding groove in the middle, and the sliding groove passes through the mounting base from front to back.

[0010] In a preferred embodiment, the clamping block has a through hole formed from front to back at its lower end. The upper right side of the front end of the clamping block is provided with a protrusion 1 and a protrusion 2. The protrusion 1 is located to the left of the protrusion 2. The left side of the front end of the clamping block is provided with an anti-slip texture 2, and the right side of the front end of the clamping block 2 is provided with an anti-slip texture 1.

[0011] In a preferred embodiment, the right rear end of the clamping block 2 is recessed forward to form a positioning hole 1 and a positioning hole 2. The positioning hole 1 is located to the right of the positioning hole 2. The lower end of the clamping block 2 extends from front to back to form a threaded hole 2. The thread direction of the inner wall of the threaded hole 2 is opposite to that of the inner wall of the threaded hole 1.

[0012] In a preferred embodiment, anti-slip texture three is provided on the left rear end of clamping block two, and anti-slip texture four is provided on the right rear end of clamping block two. The structure, distribution position and size of anti-slip texture four are the same as those of anti-slip texture one, and the structure, distribution position and size of anti-slip texture two are the same as those of anti-slip texture three.

[0013] After adopting the above technical solution, the beneficial effects of this utility model are: by setting the lower clamp and the upper clamp, the lower clamp and the upper clamp with the split structure can clamp cables of different diameters, which helps to improve the cable testing range of the equipment.

[0014] By setting clamping block one and clamping block two, and cooperating with the screw, clamping block one and clamping block two move towards each other, clamping the cable portion located on clamping block one and clamping block two. At this time, protrusion one enters into positioning hole two, and protrusion two enters into positioning hole one. Anti-slip pattern four is opposite to anti-slip pattern one, and anti-slip pattern two is opposite to anti-slip pattern three. This makes clamping block one and clamping block two firmly fix the lower part of the cable. Then, the upper part of the cable is fixed in the upper clamp in the same way, and the subsequent tensile test can be carried out. The setting of clamping block one and clamping block two can greatly improve the stability of cable clamping without affecting the cable clamping speed, avoiding the accidental situation of cable detachment during tensile testing due to unstable clamping, and ensuring that the tensile test can be completed stably. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall structure of a tensile testing machine equipped with a quick-clamping fixture according to the present invention.

[0017] Figure 2 This is a schematic diagram showing the connection between the lead screw and the moving seat of a tensile testing machine equipped with a quick-clamping fixture according to this utility model.

[0018] Figure 3 This is a schematic diagram of the lower clamping structure of a tensile testing machine equipped with a quick-clamping fixture according to the present invention.

[0019] Figure 4 This is a schematic diagram of the clamping block structure of a tensile testing machine equipped with a quick-clamping fixture according to the present invention.

[0020] Figure 5 This is a schematic diagram of the clamping block two structure of a tensile testing machine equipped with a quick-clamping fixture according to the present invention.

[0021] Figure 6 This is a schematic diagram of the cable winding structure of a tensile testing machine equipped with a quick-clamping fixture according to the present invention.

[0022] In the diagram, 100 is the tensioning component, 110 is the base, 120 is the upright, 130 is the top plate, 140 is the movable seat, 150 is the drive module, and 160 is the lead screw.

[0023] 200-Upper clamp;

[0024] 300-Lower clamp, 310-Mounting base, 311-Slide groove, 312-Leaning groove, 320-Clamping block one, 321-Anti-slip texture one, 322-Threaded hole one, 323-Protrusion one, 324-Anti-slip texture two, 325-Protrusion two, 330-Clamping block two, 331-Positioning hole one, 332-Threaded hole two, 333-Anti-slip texture three, 334-Positioning hole two, 335-Anti-slip texture four, 340-Screw. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figures 1 to 6 This utility model provides a technical solution: a tensile testing machine equipped with a quick clamping fixture, including: a tensile assembly 100, a lower clamp 300 and an upper clamp 200. The upper clamp 200 is fixed at the upper end of the tensile assembly 100, and the lower clamp 300 is movably installed on the lower side of the tensile assembly 100. The tensile assembly 100 includes a base 110, a stand, a top plate 130 and a lead screw 160.

[0027] A protective cover 120 is installed on the left and right sides of the upper end of the base 110, and a screw rod 160 is installed on the left and right sides of the upper end of the base 110. The bottom of the two screw rods 160 is fixed with a top plate 130.

[0028] The lower clamp 300 includes a mounting base 310, a clamping block 1 320, and a clamping block 2 330. The clamping block 2 330 is slidably mounted on the front side of the upper end of the mounting base 310, and the clamping block 1 320 is slidably mounted on the rear side of the upper end of the mounting base 310. Both the clamping block 1 320 and the clamping block 2 330 are threadedly connected to a screw 340. In actual use, the structure and dimensions of the upper clamp 200 are the same as those of the lower clamp 300.

[0029] As the first embodiment of this utility model, in actual use, since the structure and size of the upper clamp 200 are the same as those of the lower clamp 300, when clamping the cable to be tested, one end of the cable is first clamped at the lower end of the upper clamp 200, and then the other end is clamped at the upper end of the lower clamp 300. Then, the drive module 150 is activated to drive the movable seat 140 mounted on the lead screw 160. The lower clamp 300 located on the upper side of the movable seat 140 moves downward, while the top plate 130 is fixed, and the upper clamp 200 located on the top plate 130 remains stationary. In this way, the clamped cable can be subjected to tensile testing. The lower clamp 300 and upper clamp 200 with a split structure can clamp cables of different diameters, which helps to improve the cable testing range of the equipment.

[0030] Please see Figures 3 to 6 The tensioning assembly 100 also includes a movable seat 140 and a drive module 150. The drive module 150 is mounted on the base 110, and the movable seat 140 is movably mounted on the upper side of the two lead screws 160. In actual use, the drive module 150 includes a motor, a reducer, a coupling, a drive pulley, a transmission belt, and a driven pulley. The motor is connected to the lower end of one of the lead screws 160 through the reducer, coupling, and drive pulley, and is also connected to the other lead screw 160 through the drive pulley, transmission belt, and driven pulley, ensuring that the two lead screws 160 can rotate synchronously and stably.

[0031] The upper end of the mounting base 310 is provided with a sliding groove 311, and a clearance groove 312 is formed through the middle of the upper end of the mounting base 310 from left to right. The clearance groove 312 is connected to the sliding groove 311 in the middle, and the sliding groove 311 passes through the mounting base 310 from front to back.

[0032] The lower end of clamping block 320 forms a threaded hole 322 from front to back. The upper right side of the front end of clamping block 320 is provided with protrusion 323 and protrusion 325. Protrusion 323 is located to the left of protrusion 325. Anti-slip texture 324 is provided on the left side of the front end of clamping block 320. Anti-slip texture 321 is provided on the right side of the front end of clamping block 330.

[0033] The right rear end of clamping block 2 330 is recessed forward to form positioning hole 1 331 and positioning hole 2 334. Positioning hole 1 331 is located to the right of positioning hole 2 334. The lower end of clamping block 2 330 passes through from front to back to form thread hole 2 332. The thread direction of the inner wall of thread hole 2 332 is opposite to the thread direction of the inner wall of thread hole 1 322.

[0034] Anti-slip texture 333 is provided on the left rear end of clamping block 2 330, and anti-slip texture 4 335 is provided on the right rear end of clamping block 2 330. The structure, distribution position and size of anti-slip texture 4 335 are the same as those of anti-slip texture 1 321. The structure, distribution position and size of anti-slip texture 2 324 are the same as those of anti-slip texture 333.

[0035] As a second embodiment of this utility model, in actual use, when clamping the cable, one end of the cable is wound around the outer wall of the second protrusion 325 in a single turn, with the number of turns being less than one turn and more than half a turn. Then, the portion of the cable away from the second protrusion 325 is wound towards the lower end of the first protrusion 323. When the winding is less than half a turn, the cable is located on the left side of the first protrusion 323. Then, the portion of the cable located between the first clamping block 320 and the second clamping block 330 is tightened, and the screw 340 is rotated. With the cooperation of the first thread hole 322 and the second thread hole 332, the first clamping block 320 and the second clamping block 330 move towards each other, clamping the portion of the cable located between the first clamping block 320 and the second clamping block 330. At this time, the first protrusion 323 enters into the... Inside the second positioning hole 334, the second protrusion 325 enters the first positioning hole 331, and the fourth anti-slip texture 335 is opposite to the first anti-slip texture 321, and the second anti-slip texture 324 is opposite to the third anti-slip texture 333. This allows the first clamping block 320 and the second clamping block 330 to firmly fix the lower part of the cable. Then, the upper part of the cable is fixed inside the upper clamp 200 in the same way, and the subsequent tensile test can be carried out. The setting of the first clamping block 320 and the second clamping block 330 can greatly improve the stability of the cable clamping without affecting the cable clamping speed, and avoid the cable from coming off during the tensile process due to unstable clamping, thus ensuring that the tensile test can be completed stably.

[0036] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A tensile testing machine equipped with a quick-clamping fixture, comprising: A tensioning assembly (100), a lower clamp (300), and an upper clamp (200), characterized in that the upper clamp (200) is fixed at the upper end of the tensioning assembly (100), and the lower clamp (300) is movably installed on the lower side of the tensioning assembly (100). The tensioning assembly (100) includes a base (110), a stand (120), a top plate (130), and a lead screw (160). A protective cover is installed on the left and right sides of the upper end of the base (110), and a screw rod (160) is installed on the left and right sides of the upper end of the base (110). A top plate (130) is fixed to the bottom of the two screw rods (160). The lower clamp (300) includes a mounting base (310), a clamping block one (320), and a clamping block two (330). The clamping block two (330) is slidably mounted on the front side of the upper end of the mounting base (310), and the clamping block one (320) is slidably mounted on the rear side of the upper end of the mounting base (310). Both the clamping block one (320) and the clamping block two (330) are threadedly connected to a screw (340).

2. A tensile testing machine equipped with a quick-clamping fixture as described in claim 1, characterized in that: The tensioning assembly (100) also includes a movable seat (140) and a drive module (150). The drive module (150) is installed on the base (110), and the movable seat (140) is movably installed on the upper side of the two lead screws (160).

3. A tensile testing machine equipped with a quick-clamping fixture as described in claim 1, characterized in that: The mounting base (310) has a sliding groove (311) at its upper end. A clearance groove (312) is formed through the middle of the upper end of the mounting base (310) from left to right. The clearance groove (312) is connected to the sliding groove (311) in the middle. The sliding groove (311) passes through the mounting base (310) from front to back.

4. A tensile testing machine equipped with a quick-clamping fixture as described in claim 1, characterized in that: The lower end of the clamping block 1 (320) forms a wire hole 1 (322) extending from front to back. The upper right side of the front end of the clamping block 1 (320) is provided with a protrusion 1 (323) and a protrusion 2 (325). The protrusion 1 (323) is located directly to the left of the protrusion 2 (325). The left side of the front end of the clamping block is provided with an anti-slip texture 2 (324). The right side of the front end of the clamping block 2 (330) is provided with an anti-slip texture 1 (321).

5. A tensile testing machine equipped with a quick-clamping fixture as described in claim 4, characterized in that: The right rear end of the clamping block 2 (330) is recessed forward to form positioning hole 1 (331) and positioning hole 2 (334). Positioning hole 1 (331) is located directly to the right of positioning hole 2 (334). The lower end of the clamping block 2 (330) extends from front to back to form thread hole 2 (332). The thread direction of the inner wall of thread hole 2 (332) is opposite to the thread direction of the inner wall of thread hole 1 (322).

6. A tensile testing machine equipped with a quick-clamping fixture as described in claim 5, characterized in that: The clamping block two (330) has anti-slip texture three (333) on the left rear end and anti-slip texture four (335) on the right rear end; The structure, distribution position and size of the fourth anti-slip pattern (335) are the same as those of the first anti-slip pattern (321), and the structure, distribution position and size of the second anti-slip pattern (324) are the same as those of the third anti-slip pattern (333).

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