CN118090409A - Work piece clamping structure for electrohydraulic servo horizontal tensile testing machine - Google Patents
Work piece clamping structure for electrohydraulic servo horizontal tensile testing machine Download PDFInfo
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- CN118090409A CN118090409A CN202410516246.8A CN202410516246A CN118090409A CN 118090409 A CN118090409 A CN 118090409A CN 202410516246 A CN202410516246 A CN 202410516246A CN 118090409 A CN118090409 A CN 118090409A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
- G01N3/04—Chucks
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/10—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by pneumatic or hydraulic pressure
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0017—Tensile
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/003—Generation of the force
- G01N2203/0042—Pneumatic or hydraulic means
- G01N2203/0048—Hydraulic means
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Abstract
The invention relates to the technical field of tension testing devices, in particular to a workpiece clamping structure for an electrohydraulic servo horizontal tension testing machine, which comprises a machine table, wherein a servo hydraulic cylinder is fixedly arranged at the upper end of the machine table, a mounting seat is arranged at the left side of the servo hydraulic cylinder in a sliding way, a connecting block is fixedly arranged at the telescopic end of the servo hydraulic cylinder, the connecting block is fixedly connected with the mounting seat through an auxiliary rod, a clamping device for clamping a workpiece is arranged at the left end of the mounting seat, when a tensile experiment is carried out, a self-locking block is under the action of a torsion spring on a connecting rod, so that the clamping force on the workpiece always acts, when the workpiece is in a tensile state, the workpiece has a right acting force, and simultaneously under the action of the friction force between the self-locking block and the workpiece and the relative gradient of the auxiliary ladder block, the larger the clamping force of the self-locking block on the workpiece is, the tension is proportional to the clamping force, and the phenomenon of slipping can be effectively prevented.
Description
Technical Field
The invention relates to the technical field of tensile testing devices, in particular to a workpiece clamping structure for an electrohydraulic servo horizontal tensile testing machine.
Background
The horizontal tensile testing machine is a mechanical stress testing machine for testing mechanical properties of static load, stretching, compression and the like of instruments and equipment aiming at various materials, is suitable for various physical and mechanical property tests of materials such as wires and cables, steel products, steel wires, metal construction tools, fiber ropes and the like, is material development, and is an indispensable detection device for physical property tests, teaching researches, quality control and the like.
Through the mass retrieval, discovery prior art publication is CN 213933374U, discloses a horizontal tensile testing machine with protective effect, including frame, hydraulic pressure fixture and guide pulley, the internally mounted of frame has servo motor, and servo motor's right-hand member is connected with the lead screw, the outside of lead screw is connected with ball slip table, and the outer wall of ball slip table is fixed with the mounting panel, hydraulic pressure fixture installs in the surface of mounting panel, and hydraulic pressure fixture includes pneumatic cylinder, hydraulic pump, splint, first pressure sensor and baffle, the one end of pneumatic cylinder is connected with the hydraulic pump, and the splint is installed to the other end of pneumatic cylinder, the guide pulley sets up on the right side of lead screw, and the right side of guide pulley is provided with the display screen. This horizontal tensile testing machine sets up transparent baffle perpendicular to the upper surface of frame, can left and right sliding adjustment to under the condition that does not influence operating personnel and observe, can also shelter from the piece that splashes when breaking by the detection piece, effectively protect operating personnel to avoid the injury, the practicality is stronger.
Therefore, based on the above searching and combining the prior art, in the process of carrying out a stretching experiment on a workpiece, when the workpiece is clamped by the clamping jaw and then stretched, the clamping force of the clamping jaw can be continuous with the tension along with the increasing of the tension, the phenomenon of slipping is very likely to occur, the slipping of the tester can cause the tension applied on the sample to be not accurately transmitted, so that the accuracy of the test result is affected, the test result can show the condition that the tensile strength or the breaking point of the material is low, and for this reason, we provide a workpiece clamping structure for an electrohydraulic servo horizontal tension tester.
Disclosure of Invention
The invention aims to provide a workpiece clamping structure for an electrohydraulic servo horizontal tensile testing machine, when a workpiece is in a tensile state, the workpiece has a continuous acting force towards the right end, and simultaneously under the action of the friction force between a self-locking block and the workpiece and the relative gradient of the self-locking block and an auxiliary ladder block, the larger the acting force towards the left of the workpiece is, the larger the clamping force of the self-locking block on the workpiece is, the tensile force is in direct proportion to the clamping force, and the phenomenon of slipping can be effectively prevented, so that the problems in the prior art are solved.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a work piece clamping structure for electrohydraulic servo horizontal tensile testing machine, which comprises a machine bench, the bottom of board is by a plurality of frame fixed stay, the upper end fixed mounting of board has servo hydraulic cylinder, servo hydraulic cylinder's left side is to slide and is installed the mount pad, servo hydraulic cylinder's flexible end fixed mounting has the connecting block, and pass through auxiliary rod fixed connection between connecting block and the mount pad, servo hydraulic cylinder flexible end extends towards the direction of keeping away from the mount pad, the thrust that makes servo hydraulic cylinder produce is converted into the pulling force to the mount pad by connecting block and auxiliary rod, the upside left end fixed mounting of board has the steady rest, the left end of mount pad is provided with the clamping device who is used for pressing from both sides tight work piece, and the one end that the steady rest is close to the mount pad is provided with clamping device equally, make the work piece both ends receive stable clamp fixing, do not drop;
Clamping device includes stable sleeve, stable sleeve fixed mounting is at the left end of mount pad, stable telescopic left end rotates and installs outer spiral cover, the left end of mount pad has stable awl section of thick bamboo, and specifically, the antiskid block has been seted up to the surface of outer spiral cover, make it can increase the snap-in force when using more light rotate outer spiral cover, can also increase the snap-in force simultaneously with the help of the instrument rotation, be difficult for skidding, stable telescopic surface rotates and installs the locking ring, the locking ring is located the right side of outer spiral cover, and outer spiral cover establishes the surface at stable awl section of thick bamboo, stable awl section of thick bamboo's inboard is provided with a plurality of stable pincers that are used for pressing from both sides tight with the work piece, and stable pincers centripetal end is the form of meshing, make the clamp with the work piece more stable, prevent skidding.
As a further scheme of the invention, a stabilizing ring is fixedly arranged on the inner side of the stabilizing cone, a stabilizing clamp is in sliding connection with the stabilizing ring, one end of the stabilizing clamp, which is close to the outer rotary cover, is sequentially increased from left to right, a certain gradient is formed, the gradient surface is subjected to smooth treatment, a thread sleeve is fixedly arranged on the inner end of the outer rotary cover, a plurality of rectangular through holes are formed in the outer surface of the stabilizing cone, a trapezoid locking block is sleeved on the inner side of the rectangular through holes, a thread groove is formed in one end of the trapezoid locking block, which is close to the thread sleeve, the thread sleeve is in threaded connection with the trapezoid locking block, one end of the trapezoid locking block, which is far from the thread sleeve, is abutted with the trapezoid locking block, and particularly, one end of the trapezoid locking block, which is close to the stabilizing clamp, is sequentially increased from right to left, is subjected to certain gradient, and the gradient surface is subjected to smooth treatment.
As a further scheme of the invention, the gradients between the stabilizing clamp and the trapezoidal locking block are mutually abutted, so that when the trapezoidal locking block rotates through the threaded sleeve to enable the trapezoidal locking block to move left and right, the slope of one end, close to the stabilizing clamp, of the trapezoidal locking block and the slope of one end, close to the trapezoidal locking block, of the stabilizing clamp are mutually extruded to enable the stabilizing clamp to move towards one end, far from the threaded sleeve, of the stabilizing clamp, and therefore workpieces are clamped;
The outer surface of the stabilizing sleeve is provided with a lock hole, the lock hole is L-shaped, the inner side of the locking ring is fixedly provided with a lug, the lug penetrates through the inner side of the lock hole, the outer rotary cover rotates to the steering position of the lock hole, then the outer rotary cover is shifted to the right side, self-locking can be realized, and finally the outer rotary cover cannot rotate continuously;
As a further scheme of the invention, the right side of the trapezoid locking block is provided with an auxiliary ladder block, the auxiliary ladder block is fixedly connected with the stable cone cylinder, one end of the auxiliary ladder block, which is far away from the outer spiral cover, is sequentially increased from right to left, so as to form a gradient, the surface of the gradient is smooth, the inner side of the stable sleeve is fixedly provided with a plurality of connecting pieces, and one end of the auxiliary ladder block, which is far away from the stable sleeve, is provided with a self-locking block;
The spout has been seted up to the connecting piece surface, and the junction of connecting rod and connecting piece is provided with protruding pole, and protruding pole slides and sets up in the spout, and the spout can restrict connecting rod pivoted angle, prevents to be the vertical state between connecting rod and the stable sleeve, leads to the device unable to recover and with the work piece damage.
As a further scheme of the invention, the mounting rod is slidably mounted on the inner side of the self-locking block, the auxiliary wheel is rotatably mounted at the left end of the mounting rod, and the rubber sleeve is fixedly mounted on the outer surface of the auxiliary wheel, so that friction force is increased to enable the auxiliary wheel to be in contact with a workpiece, the workpiece fine adjustment position can be smoothly rotated, the mounting rod is connected with the self-locking block through the abutting spring, a plurality of square holes are formed in the outer surface of the stabilizing sleeve, the connecting rope is fixedly mounted at the right end of the mounting rod, the free end of the connecting rope penetrates through the square holes to be finally fixedly connected with the locking ring, and particularly, the auxiliary shaft is rotatably mounted at the square holes, the connecting rope is in contact with the auxiliary shaft, and when the locking ring rotates, the connecting rope can be smoothly pulled, so that resistance is reduced, and fluency is improved.
Compared with the prior art, the invention has the beneficial effects that:
1. When a stretching experiment is carried out, the self-locking block is under the tension action of the torsion spring on the connecting rod, so that the clamping force on the workpiece is always realized, when the workpiece is in a stretching state, the workpiece has an action force continuously towards the right end, meanwhile, under the friction force between the self-locking block and the workpiece and the action of the relative gradient of the self-locking block and the auxiliary ladder block, the larger the action force towards the left of the workpiece is, the self-locking block starts to move towards the left under the action of the friction force on the workpiece and moves towards the workpiece at the same time, the larger the clamping force on the workpiece by the self-locking block is realized, and the phenomenon of slipping can be effectively prevented;
2. From the locking piece increase in proper order from left to right to this forms the slope, and the slope surface is smooth processing, and is provided with the connecting rod from between locking piece and the connecting piece, connecting rod one end rotates with the connecting piece to be connected, and the other end rotates with the connecting piece to be connected, through torsional spring joint between connecting rod and the connecting piece, the one end that auxiliary ladder piece was kept away from to the locking piece is the arc and for the tooth form, and the arc design realizes having more contact surfaces to the work piece, thereby obtains more frictional force.
Drawings
FIG. 1 is a schematic structural view of a workpiece clamping structure for an electrohydraulic servo horizontal tensile testing machine;
FIG. 2 is a schematic view of a clamping device;
FIG. 3 is a side view showing an outer screw cap;
FIG. 4 is a disassembled view of the clamping device;
FIG. 5 is a schematic view of the internal structure of the clamping device;
FIG. 6 is a diagram of the ladder lock block and the steady clamp placement relationship;
FIG. 7 is a schematic view of a clamping device;
FIG. 8 is a schematic view of the structure shown in FIG. 7A;
FIG. 9 is a schematic view of the self-locking block and outer cap positional relationship;
Fig. 10 is a schematic structural view of the self-locking block.
In the figure: 1. a machine table; 2. a frame; 3. a servo hydraulic cylinder; 101. a connecting block; 102. an auxiliary lever;
201. A mounting base; 202. a stabilizing seat; 203. an outer screw cap; 204. stabilizing the cone; 205. a locking ring; 206. a stabilizing clamp; 207. a stabilizing ring; 208. a thread sleeve; 209. a lock hole; 210. a bump;
301. Square holes; 302. a trapezoidal locking piece; 303. auxiliary ladder blocks; 304. a connecting cable; 305. an auxiliary shaft; 306. a self-locking block; 307. a connecting rod; 308. a connecting piece; 309. a chute; 310. a stabilizing sleeve;
401. an auxiliary wheel; 402. a mounting rod; 403. abutting the spring.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1: referring to fig. 1-4, a workpiece clamping structure for an electrohydraulic servo horizontal tensile testing machine comprises a machine table 1, wherein the bottom end of the machine table 1 is fixedly supported by a plurality of machine frames 2, a servo hydraulic cylinder 3 is fixedly arranged at the upper end of the machine table 1, a mounting seat 201 is arranged at the left side of the servo hydraulic cylinder 3, a connecting block 101 is fixedly arranged at the telescopic end of the servo hydraulic cylinder 3, the connecting block 101 is fixedly connected with the mounting seat 201 through an auxiliary rod 102, the telescopic end of the servo hydraulic cylinder 3 extends towards the direction far away from the mounting seat 201, the thrust generated by the servo hydraulic cylinder 3 is converted into a tensile force to the mounting seat 201 by the connecting block 101 and the auxiliary rod 102, a stabilizing seat 202 is fixedly arranged at the left end of the upper side of the machine table 1, a clamping device for clamping a workpiece is arranged at the left end of the mounting seat 201, and a clamping device is also arranged at one end of the stabilizing seat 202 close to the mounting seat 201, so that both ends of the workpiece can be stably clamped and fixed without falling off;
Referring to fig. 2, 3, 4 and 5, the clamping device includes a stabilizing sleeve 310, the stabilizing sleeve 310 is fixedly installed at the left end of the mounting seat 201, the left end of the stabilizing sleeve 310 is rotatably installed with an outer rotary cover 203, the left end of the mounting seat 201 is fixedly installed with a stabilizing cone 204, specifically, an anti-slip block is provided on the outer surface of the outer rotary cover 203, so that the outer rotary cover 203 can be rotated more easily when in use, meanwhile, the biting force can be increased when the tool rotates, the tool is not easy to slip, a locking ring 205 is rotatably installed on the outer surface of the stabilizing sleeve 310, the locking ring 205 is located on the right side of the outer rotary cover 203, the outer rotary cover 203 is sleeved on the outer surface of the stabilizing cone 204, a plurality of stabilizing pliers 206 for clamping workpieces are arranged on the inner side of the stabilizing cone 204, and the centripetal ends of the stabilizing pliers 206 are in a tooth shape, so that workpieces can be clamped more stably, and slipping is prevented.
Example 2: referring to fig. 4, 5 and 6, in the workpiece clamping structure for an electrohydraulic servo horizontal tensile testing machine, based on the foundation of embodiment 1, a stabilizing ring 207 is fixedly installed on the inner side of a stabilizing cone 204, a stabilizing clamp 206 is slidably connected with the stabilizing ring 207, one end of the stabilizing clamp 206, which is close to an outer screw cap 203, is sequentially increased from left to right to form a certain gradient, the gradient surface is subjected to smooth treatment, a threaded sleeve 208 is fixedly installed on the inner end of the outer screw cap 203, a plurality of rectangular through holes are formed in the outer surface of the stabilizing cone 204, a trapezoidal locking block 302 is sleeved on the inner side of the rectangular through holes, a threaded groove is formed in one end of the trapezoidal locking block 302, which is close to the threaded sleeve 208, the threaded sleeve 208 is screwed with the trapezoidal locking block 302, one end of the trapezoidal locking block 302, which is far away from the threaded sleeve 208, is abutted against the trapezoidal locking block 302, and one end of the trapezoidal locking block 302, which is close to the stabilizing clamp 206, is sequentially increased from right to left to form a certain gradient, and the gradient surface is subjected to smooth treatment;
Referring to fig. 6, 7 and 8, the gradients between the stabilizing clamp 206 and the trapezoidal locking block 302 are mutually abutted, so that when the trapezoidal locking block 302 rotates through the threaded sleeve 208 to enable the trapezoidal locking block 302 to move left and right, the stabilizing clamp 206 moves towards the end far away from the threaded sleeve 208 by mutually extruding the slope of the trapezoidal locking block 302 near one end of the stabilizing clamp 206 and the slope of the stabilizing clamp 206 near one end of the trapezoidal locking block 302, so as to clamp a workpiece;
Referring to fig. 4, a lock hole 209 is formed on the outer surface of the stabilizing sleeve 310, the lock hole 209 is L-shaped, a bump 210 is fixedly mounted on the inner side of the locking ring 205, the bump 210 penetrates the inner side of the lock hole 209, the outer rotary cover 203 rotates to the turning position of the lock hole 209, and then the outer rotary cover 203 can be self-locked by being shifted to the right side, so that the outer rotary cover 203 cannot continue to rotate;
Referring to fig. 5, 7 and 8, an auxiliary ladder block 303 is arranged on the right side of a trapezoid locking block 302, the auxiliary ladder block 303 is fixedly connected with a stabilizing cone 204, one end of the auxiliary ladder block 303, which is far away from an outer spiral cover 203, is sequentially increased from right to left so as to form a gradient, the gradient surface is smooth, a plurality of connecting pieces 308 are fixedly arranged on the inner side of a stabilizing sleeve 310, one end of the auxiliary ladder block 303, which is far away from the stabilizing sleeve 310, is provided with a self-locking block 306, the self-locking block 306 is sequentially increased from left to right so as to form a gradient, the gradient surface is smooth, a connecting rod 307 is arranged between the self-locking block 306 and the connecting pieces 308, one end of the connecting rod 307 is rotationally connected with the connecting pieces 308, the other end of the connecting rod 307 is rotationally connected with the connecting pieces 308 through a torsional spring, in particular, one end of the self-locking block 306, which is far away from the auxiliary ladder block 303, is arc-shaped and is tooth-shaped, and the arc-shaped design realizes more contact surfaces on workpieces so as to obtain more friction force;
more specifically, the outer surface of the connecting piece 308 is provided with a chute 309, the connection part between the connecting rod 307 and the connecting piece 308 is provided with a convex rod, the convex rod is slidably arranged in the chute 309, the chute 309 can limit the rotation angle of the connecting rod 307, and the connecting rod 307 and the stabilizing sleeve 310 are prevented from being in a vertical state, so that the device cannot be restored and a workpiece is damaged;
Referring to fig. 9 and 10, a mounting rod 402 is slidably mounted on the inner side of a locking block 306, an auxiliary wheel 401 is rotatably mounted at the left end of the mounting rod 402, a rubber sleeve is fixedly mounted on the outer surface of the auxiliary wheel 401, so that when friction force is increased to enable the auxiliary wheel 401 to be in contact with a workpiece, the workpiece fine adjustment position can be rotated more smoothly, the mounting rod 402 is connected with the locking block 306 through a butt spring 403, a plurality of square holes 301 are formed in the outer surface of a stabilizing sleeve 310, a connecting cable 304 is fixedly mounted at the right end of the mounting rod 402, the free end of the connecting cable 304 passes through the square holes 301 and is finally fixedly connected with a locking ring 205, an auxiliary shaft 305 is rotatably mounted at the square holes 301, the connecting cable 304 is in contact with the auxiliary shaft 305, the connecting cable 304 can be pulled more smoothly when the locking ring 205 rotates, resistance is reduced, and fluency is improved;
when a tensile experiment is performed, the self-locking block 306 is under the tension action of the torsion spring on the connecting rod 307, so that the clamping force on the workpiece is always realized, when the workpiece is in a tensile state, the workpiece has an action force continuously towards the right end, meanwhile, under the friction force between the self-locking block 306 and the workpiece and the matching action of the relative gradient of the self-locking block 306 and the auxiliary ladder block 303, the action force of the workpiece towards the left is increased, and the self-locking block 306 starts to move towards the left under the action of the friction force on the workpiece and moves towards the workpiece at the same time, so that the clamping force on the workpiece by the self-locking block 306 is larger, and the slipping phenomenon can be effectively prevented.
The working principle of the invention is as follows:
When the workpiece to be elongated is aligned to the left end guide hole of the stable cone 204 and is inserted, at the moment, the outer surface of the auxiliary wheel 401 is contacted with the outer surface of the workpiece, the self-locking block 306 cannot contact the workpiece, the workpiece can be finely adjusted along with the rotation of the auxiliary wheel 401, after the workpiece is adjusted to a proper position, the outer rotary cover 203 is rotated, the rotating outer rotary cover 203 rotates with the threaded sleeve 208, when the trapezoidal locking block 302 rotates through the threaded sleeve 208 to enable the trapezoidal locking block 302 to move left and right, the inclined slope of the trapezoidal locking block 302 close to one end of the stabilizing clamp 206 and the inclined slope of the stabilizing clamp 206 close to one end of the trapezoidal locking block 302 are mutually extruded, so that the stabilizing clamp 206 moves towards one end far from the threaded sleeve 208, and the workpiece is clamped, and the workpiece is initially fixed;
Then, the locking ring 205 is rotated, the rotating locking ring 205 pulls the mounting rod 402 to move through the connecting cable 304, so that the auxiliary wheel 401 is not contacted with a workpiece any more, then the outer rotary cover 203 is rotated to the steering position of the lock hole 209, and then the outer rotary cover 203 is shifted to the right side, self-locking can be realized, finally the outer rotary cover 203 cannot continue to rotate, the self-locking block 306 is contacted with the workpiece through the acting force of the torsion spring to the connecting rod 307, secondary fixation is generated, meanwhile, the abutting spring 403 is compressed, at the moment, the servo hydraulic cylinder 3 is started, the telescopic end pushes the connecting block 101, and then the connecting block 101 pulls the mounting seat 201 to the right side through the auxiliary rod 102 to move;
At this time, the pulling-up experiment is started on the workpiece, after the workpiece pulling-up experiment is finished, the device is closed, the outer rotary cover 203 is rotated to loosen the trapezoid locking block 302, then the locking ring 205 is shifted to rotate, the self-locking is released, the workpiece is slightly pushed to the right side, the self-locking block 306 moves under the action of the friction force of the workpiece and follows the workpiece, after a certain distance is moved, the compressed abutting spring 403 pushes the auxiliary wheel 401 to move under the action of tension through the mounting rod 402, and at this time, the workpiece can move left and right, so that the workpiece can be easily taken out.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art who is skilled in the art to which the present invention pertains should cover the scope of the present invention by equally replacing or changing the technical scheme and the inventive concept thereof.
Claims (8)
1. Work piece clamping structure for electrohydraulic servo horizontal tensile testing machine, including board (1), its characterized in that: the automatic clamping device is characterized in that a servo hydraulic cylinder (3) is fixedly arranged at the upper end of the machine table (1), an installation seat (201) is installed on the left side of the servo hydraulic cylinder (3) in a sliding mode, a connecting block (101) is fixedly arranged at the telescopic end of the servo hydraulic cylinder (3), the connecting block (101) is fixedly connected with the installation seat (201) through an auxiliary rod (102), the telescopic end of the servo hydraulic cylinder (3) extends in a direction away from the installation seat (201), so that thrust generated by the servo hydraulic cylinder (3) is converted into a pulling force for the installation seat (201) through the connecting block (101) and the auxiliary rod (102), and a clamping device for clamping a workpiece is arranged at the left end of the installation seat (201);
The clamping device comprises a stabilizing sleeve (310), the stabilizing sleeve (310) is fixedly arranged at the left end of the mounting seat (201), the left end of the stabilizing sleeve (310) is rotatably provided with an outer rotary cover (203), the left end of the mounting seat (201) is fixedly provided with a stabilizing cone (204), and the outer surface of the stabilizing sleeve (310) is rotatably provided with a locking ring (205).
2. The workpiece clamping structure for an electrohydraulic servo horizontal tensile testing machine according to claim 1, wherein: the locking ring (205) is located on the right side of the outer rotary cover (203), the outer rotary cover (203) is sleeved on the outer surface of the stable conical barrel (204), and a plurality of stabilizing clamps (206) used for clamping a workpiece are arranged on the inner side of the stable conical barrel (204).
3. The workpiece clamping structure for an electrohydraulic servo horizontal tensile testing machine according to claim 2, wherein: the inner side of the stable cone (204) is fixedly provided with a stable ring (207), the stable clamp (206) is in sliding connection with the stable ring (207), the inner end of the outer spiral cover (203) is fixedly provided with a threaded sleeve (208), the outer surface of the stable cone (204) is provided with a plurality of rectangular through holes, and the inner side of each rectangular through hole is sleeved with a trapezoidal locking block (302).
4. The workpiece clamping structure for an electrohydraulic servo horizontal tensile testing machine according to claim 3, wherein: the trapezoidal locking piece (302) is close to one end of the thread sleeve (208) and is provided with a thread groove, the thread sleeve (208) is screwed with the trapezoidal locking piece (302), and one end of the trapezoidal locking piece (302) away from the thread sleeve (208) is abutted with the trapezoidal locking piece (302).
5. The workpiece clamping structure for an electrohydraulic servo horizontal tensile testing machine of claim 4 wherein: the right side of trapezoidal locking piece (302) is provided with supplementary ladder piece (303), supplementary ladder piece (303) and stable awl section of thick bamboo (204) fixed connection, the inboard fixed mounting of stable sleeve (310) has a plurality of connecting pieces (308), the one end that stable sleeve (310) was kept away from to supplementary ladder piece (303) is provided with from locking piece (306).
6. The workpiece clamping structure for an electrohydraulic servo horizontal tensile testing machine of claim 5 wherein: a connecting rod (307) is arranged between the self-locking block (306) and the connecting piece (308), one end of the connecting rod (307) is rotationally connected with the connecting piece (308), the other end of the connecting rod is rotationally connected with the connecting piece (308), and the connecting rod (307) is clamped with the connecting piece (308) through a torsion spring.
7. The workpiece clamping structure for an electrohydraulic servo horizontal tensile testing machine of claim 6 wherein: the inside slidable mounting of auto-lock piece (306) has installation pole (402), auxiliary wheel (401) are installed in the left end rotation of installation pole (402), be connected through butt spring (403) between installation pole (402) and auto-lock piece (306), a plurality of square holes (301) have been seted up to the surface of stable sleeve (310).
8. The workpiece clamping structure for an electrohydraulic servo horizontal tensile testing machine of claim 7 wherein: the right end of the mounting rod (402) is fixedly provided with a connecting rope (304), and the free end of the connecting rope (304) passes through the square hole (301) to be finally fixedly connected with the locking ring (205).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410516246.8A CN118090409B (en) | 2024-04-28 | 2024-04-28 | Work piece clamping structure for electrohydraulic servo horizontal tensile testing machine |
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| CN202410516246.8A CN118090409B (en) | 2024-04-28 | 2024-04-28 | Work piece clamping structure for electrohydraulic servo horizontal tensile testing machine |
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| CN118090409A true CN118090409A (en) | 2024-05-28 |
| CN118090409B CN118090409B (en) | 2024-06-25 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118500725A (en) * | 2024-07-17 | 2024-08-16 | 常州常鹏电机有限公司 | A kind of automatic testing device of motor rotor |
| CN120213629A (en) * | 2025-04-08 | 2025-06-27 | 德州恒力电机有限责任公司 | A detection device for developing ship generator control box wiring harness |
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| CN114965048A (en) * | 2022-05-11 | 2022-08-30 | 辽宁工程技术大学 | A column-enclosed experimental frame for mining hydraulic support rod experiment |
| CN115200974A (en) * | 2022-07-10 | 2022-10-18 | 郑州大学 | Auxiliary stretching device for stretching machine and working steps thereof |
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2024
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| CN114965048A (en) * | 2022-05-11 | 2022-08-30 | 辽宁工程技术大学 | A column-enclosed experimental frame for mining hydraulic support rod experiment |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN118500725A (en) * | 2024-07-17 | 2024-08-16 | 常州常鹏电机有限公司 | A kind of automatic testing device of motor rotor |
| CN118500725B (en) * | 2024-07-17 | 2024-11-12 | 常州常鹏电机有限公司 | A kind of automatic testing device for motor rotor |
| CN120213629A (en) * | 2025-04-08 | 2025-06-27 | 德州恒力电机有限责任公司 | A detection device for developing ship generator control box wiring harness |
| CN120213629B (en) * | 2025-04-08 | 2025-10-28 | 德州恒力电机有限责任公司 | A detection device for developing ship generator control box wiring harness |
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| CN118090409B (en) | 2024-06-25 |
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