A metal product tensile testing fixture

Abstract

The present invention relates to the technical field of metal product detection, and specifically to a metal product tension detection jig, comprising a fixed plate, two groups of threaded plates are slidably connected to the lower side of the fixed plate, a clamp is fixedly connected to the lower side of the threaded plate, a first connecting plate is fixedly connected to the side wall of the clamp, a hydraulic rod is fixedly connected to the lower side of the first connecting plate, a sliding frame is fixedly connected to the output end of the hydraulic rod, a slider is slidably connected in the sliding frame, a first connecting rod is fixedly connected to the side wall of the slider, an oblique groove is opened on the side wall of the clamp, and a square slide is slidably connected in the oblique groove. When the present invention performs tension detection on metal products, the metal product to be detected is placed on the upper side of the moving frame, the hydraulic rod is started, and the metal product is mechanically transported to the lower side of the fixture, thereby reducing the workload of workers, and the transportation is mechanically carried out, with good transportation effect and accurate transportation position.

Description

Technical Field

[0001] The present invention relates to the technical field of metal product detection, and in particular to a metal product tension detection jig. Background Art

[0002] During the processing of metal products, sometimes in order to detect the manufacturing quality, it is necessary to perform a tensile test on the metal products. During the testing of the metal products, the metal products are placed in the fixture of the tensile testing machine, the metal products are clamped, and the testing operation is started. The overall operation is simple;

[0003] However, in the actual working process, the installation and disassembly operations of metal products are mainly completed manually. The metal products are heavy, and the workload is large when they are moved manually. After the metal products are stretched, the metal products themselves are hot, and they need to be left to stand for a period of time to lower the temperature of the metal products, which seriously delays the normal detection efficiency. In addition, when testing the metal products, in order to ensure the normal detection effect, the clamp and the metal products need to be clamped tightly together, which leads to the metal products being likely to be stuck on the clamp during disassembly. The metal products need to be shaken slightly manually to complete the disassembly operation of the metal products. There is a certain risk in shaking them manually. Therefore, a metal product tensile testing fixture is provided. Summary of the invention

[0004] In order to solve the problems in the background technology, the present invention proposes a metal product tension testing fixture.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A metal product tension detection jig comprises a fixed plate, two groups of threaded plates are slidably connected to the lower side of the fixed plate, a clamping plate is fixedly connected to the lower side of the threaded plate, a first connecting plate is fixedly connected to the side wall of the clamping plate, a hydraulic rod is fixedly connected to the lower side of the first connecting plate, a sliding frame is fixedly connected to the output end of the hydraulic rod, a sliding block is slidably connected to the sliding frame, a first connecting rod is rotatably connected to the side wall of the sliding block, an oblique groove is opened on the side wall of the clamping plate, a square sliding cylinder is slidably connected to the oblique groove, and one side of the square sliding cylinder is fixed to the first connecting rod The square slide cylinder is connected, and a moving frame is fixedly connected to the other side of the square slide cylinder. There are multiple groups of rotating shafts rotatably connected in the moving frame. The outer side of each rotating shaft is fixedly connected to a fixed cylinder, the outer side of the fixed cylinder is fixedly connected to a rotating cylinder, the outer side of the rotating shaft is rotatably sleeved with a connecting cylinder, the outer side of the connecting cylinder is sleeved with a connecting frame, a first spring is fixedly connected between the connecting frame and the connecting cylinder, the outer side of the connecting frame is fixedly connected to a third connecting plate, the outer side of the third connecting plate is fixedly connected to a moving cylinder, and the moving cylinder and the moving frame are connected for up and down sliding connection.

[0007] Preferably, a rotating assembly for controlling the rotation of the rotating shaft is installed in the splint, and the rotating assembly includes a deep groove opened on the inner side wall of the inclined groove, and a third rack is fixedly connected to the bottom of the deep groove, one of the rotating shafts extends to the bottom of the square slide and is rotatably connected to the square slide, and the rotating shaft is located on one side of the square slide and is fixedly connected to a third transmission gear, the third transmission gear passes through the square slide, and the third transmission gear is meshed with the third rack, and multiple groups of transmission rods are rotatably connected in the moving frame, and multiple groups of transmission rods and rotating shafts are staggered, and the outer sides of multiple groups of transmission rods are fixedly connected to the first transmission gear, and the outer sides of multiple groups of rotating shafts are fixedly connected to the second transmission gear, and the second transmission gear is meshed with the first transmission gear.

[0008] Preferably, a baffle is fixedly connected to the side wall of the clamping plate.

[0009] Preferably, a shaking assembly for improving the heat dissipation of metal products is installed on the moving frame, and the shaking assembly includes a control groove opened on the upper side of the moving frame, one end of one of the rotating shafts extends to the control groove and is rotatably connected to the control groove, the rotating shaft is located in the control groove and is fixedly connected to a first ratchet on one side, a knocking plate is slidably connected in the control groove, a fourth rack is fixedly connected to the lower side of the knocking plate, a fourth connecting rod is rotatably connected in the control groove, a circular plate is fixedly sleeved on the outer side of the fourth connecting rod, a torsion spring is fixedly connected between the circular plate and the side wall of the control groove, a plurality of groups of square grooves are opened on the outer side of the circular plate, ratchets are slidably sleeved in the plurality of groups of square grooves, a second spring is fixedly connected between the ratchet and the square groove, a fourth transmission gear is fixedly sleeved on the outer side of the fourth connecting rod, and the fourth transmission gear and the fourth rack are meshed.

[0010] Preferably, a control component for controlling the upward movement of the knocking plate is installed on the upper side of the moving frame, and the control component includes a second ratchet fixedly sleeved on the outside of the fourth connecting rod, a second connecting plate is slidably connected in the control groove, the second connecting plate is located on the lower side of the second ratchet, and a third connecting rod is fixedly connected to the side wall of the second connecting plate, one end of the third connecting rod extends into the moving frame, and the third connecting rod is fixedly connected to a moving plate on one side located in the moving frame, and the side wall of the moving plate is fixedly connected to the second connecting rod.

[0011] Preferably, a non-slip rubber sleeve is fixedly sleeved on the outer side of the rotating cylinder.

[0012] Preferably, a rotation groove is opened on the lower side of the fixed plate, the threaded plate and the rotation groove are slidably connected, a threaded rod is rotatably connected in the rotation groove, and the threaded rod passes through the threaded plate and the threaded plate is threadedly connected.

[0013] The present invention has the following beneficial effects:

[0014] 1. First, when conducting tensile testing on metal products, place the metal products to be tested on the upper side of the moving frame, start the hydraulic rod, and transport the metal products to the lower side of the fixture by mechanical means, which reduces the workload of workers and uses mechanical means for transportation, with good transportation effect and accurate transportation position;

[0015] 2. Secondly, after the metal product has completed the tensile test, it can also be removed mechanically. In this process, the striking plate will move back and forth, causing the metal product to shake, which can accelerate the heat dissipation of the metal product. After the metal product is removed from the tensile test machine fixture, the heat dissipation of the metal product can be accelerated, which can greatly reduce the static time of the metal product, thereby improving the inspection efficiency of the metal product.

[0016] 3. Finally, if the metal product gets stuck on the fixture, the striking plate will continue to move upward, causing a collision with the metal product, destroying the balance between the metal product and the fixture, so that the metal product can fall well on the upper side of the moving frame without manual adjustment, and has a high degree of intelligence and automation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the actual working simulation of the present invention;

[0018] Figure 2 It is a three-dimensional structural schematic diagram of the present invention;

[0019] Figure 3 It is a cross-sectional connection diagram of the fixing plate in the present invention;

[0020] Figure 4 It is a schematic diagram of the connection between the clamping plate and the moving frame in the present invention;

[0021] Figure 5 It is a cross-sectional connection schematic diagram of the rotating drum in the present invention;

[0022] Figure 6 It is a schematic diagram of the connection between the sliding frame and the sliding block in the present invention;

[0023] Figure 7 It is a top view connection schematic diagram of the mobile frame in the present invention;

[0024] Figure 8 It is a schematic diagram of the connection between the inclined groove and the deep groove in the present invention;

[0025] Fig. 9 is a schematic diagram of the connection between the first transmission gear and the second transmission gear in the present invention;

[0026] Fig.10It is a schematic diagram of the connection between the rotating cylinder and the moving plate in the present invention;

[0027] Fig.11 It is a schematic diagram of the connection between the rotating cylinder and the moving cylinder in the present invention;

[0028] Fig.12 It is a schematic diagram of the internal connection of the control slot in the present invention;

[0029] Fig.13 is a schematic diagram of the connection between the first ratchet and the circular plate in the present invention;

[0030] Fig.14 is a cross-sectional connection diagram of the circular plate in the present invention;

[0031] Fig.15 is a schematic diagram of the connection between the first ratchet and the circular plate at another angle in the present invention;

[0032] Fig.16 It is a schematic diagram of the motion state of the first ratchet in the present invention.

[0033] In the figure: 1 fixed plate, 2 clamping plate, 3 moving frame, 4 rotating groove, 5 threaded plate, 6 sliding frame, 7 threaded rod, 8 first connecting plate, 9 hydraulic rod, 10 square slide cylinder, 11 rotating cylinder, 12 knocking plate, 13 moving plate, 14 inclined groove, 15 baffle, 16 slider, 17 first connecting rod, 18 first transmission gear, 19 rotating shaft, 20 third transmission gear, 21 deep groove, 22 third rack, 23 fixed cylinder, 24 second connecting rod, 25 moving cylinder, 26 connecting frame, 27 third connecting plate, 28 second transmission gear, 29 second connecting plate, 30 transmission rod, 31 control groove, 32 first ratchet, 33 fourth connecting rod, 34 torsion spring, 35 circular plate, 36 fourth rack, 37 ratchet, 38 fourth transmission gear, 39 second ratchet, 40 second spring, 41 third connecting rod, 42 connecting cylinder, 43 first spring. DETAILED DESCRIPTION

[0034] Reference Figure 1 - Fig.16 , a metal product tensile testing fixture, comprising a fixing plate 1, such as Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Fig.10 , Fig.11The fixed plate 1 is slidably connected to two groups of threaded plates 5 at the lower side, the threaded plate 5 is fixedly connected to a clamping plate 2 at the lower side, the side wall of the clamping plate 2 is fixedly connected to a first connecting plate 8, the lower side of the first connecting plate 8 is fixedly connected to a hydraulic rod 9, the output end of the hydraulic rod 9 is fixedly connected to a sliding frame 6, a slider 16 is slidably connected in the sliding frame 6, the side wall of the slider 16 is rotatably connected to a first connecting rod 17, an inclined groove 14 is opened on the side wall of the clamping plate 2, a square slide 10 is slidably connected in the inclined groove 14, one side of the square slide 10 is fixedly connected to the first connecting rod 17, the other side of the square slide 10 is fixedly connected to a moving frame 3, a plurality of rotating shafts 19 are rotatably connected in the moving frame 3, and the outer side of each rotating shaft 19 is fixedly connected There is a fixed cylinder 23, the outer side of the fixed cylinder 23 is fixedly connected with a rotating cylinder 11, the outer side of the rotating shaft 19 is rotatably sleeved with a connecting cylinder 42, the outer side of the connecting cylinder 42 is sleeved with a connecting frame 26, a first spring 43 is fixedly connected between the connecting frame 26 and the connecting cylinder 42, the outer side of the connecting frame 26 is fixedly connected with a third connecting plate 27, the outer side of the third connecting plate 27 is fixedly connected with a moving cylinder 25, the moving cylinder 25 and the moving frame 3 are slidably connected up and down, a rotating groove 4 is opened on the lower side of the fixed plate 1, the threaded plate 5 is slidably connected to the rotating groove 4, a threaded rod 7 is rotatably connected in the rotating groove 4, the threaded rod 7 penetrates the threaded plate 5 and is threadedly connected to the threaded plate 5, and an anti-slip rubber sleeve is fixedly sleeved on the outer side of the rotating cylinder 11;

[0035] First, when it is necessary to perform a tensile test on a metal product, the threaded rod 7 is rotated first. Since the threaded rod 7 is threadedly connected to the threaded plate 5, and the threaded plate 5 is slidably connected to the rotating groove 4, the rotating threaded rod 7 will drive the two threaded plates 5 to move away from or towards each other. The threaded plate 5 drives the clamping plate 2 and the moving frame 3 to move as a whole until the position meets the working requirements. The metal product is placed on the upper side of the rotating cylinder 11 ( Figure 2 The cross-like structure in the figure represents the metal product), the hydraulic rod 9 is started, the hydraulic rod 9 drives the slide frame 6 to move upward, the slide frame 6 drives the square slide cylinder 10 to move upward through the slider 16 and the first connecting rod 17, and under the limiting effect of the inclined groove 14, the square slide cylinder 10 moves obliquely upward along the inclined groove 14, the square slide cylinder 10 drives the moving frame 3 to move obliquely upward, and the moving frame 3 drives the metal product to move obliquely upward until one end of the metal product extends into the clamp of the tensile testing machine, at this time, the hydraulic rod 9 is closed, and the metal product is clamped by the clamp of the tensile testing machine, and the tensile testing machine is started at this time to start the testing operation. The above are all prior arts and no unnecessary elaboration is made.

[0036] Secondly, when the metal product is placed on the upper side of the moving frame 3, the metal product is located on the upper side of the rotating cylinder 11 and the moving cylinder 25, wherein the diameter of the moving cylinder 25 is larger than the diameter of the rotating cylinder 11. When the metal product is placed on the upper side of the moving frame 3, the metal product first abuts against the moving cylinder 25 and drives the moving cylinder 25 to move downward until the metal product and the rotating cylinder 11 abut against each other. When the fixed cylinder 23 rotates, the fixed cylinder 23 drives the rotating cylinder 11 to rotate, but the moving cylinder 25 is connected to the moving frame 3 by sliding up and down, so the moving cylinder 25 does not rotate with the rotating shaft 19.

[0037] like Figure 5 , Figure 8 , Fig. 9 A rotating assembly for controlling the rotation of the rotating shaft 19 is installed in the clamping plate 2, and the rotating assembly includes a deep groove 21 opened on the inner side wall of the inclined groove 14, and a third rack 22 is fixedly connected to the bottom of the deep groove 21, one of the rotating shafts 19 extends to the bottom of the square slide 10 and is rotatably connected to the square slide 10, and the rotating shaft 19 is located on one side of the square slide 10 and is fixedly connected to a third transmission gear 20, the third transmission gear 20 runs through the square slide 10, and the third transmission gear 20 is meshed with the third rack 22, and multiple groups of transmission rods 30 are rotatably connected in the moving frame 3, and the multiple groups of transmission rods 30 and the rotating shaft 19 are staggered. The outer side of the multiple groups of transmission rods 30 is fixedly connected to the first transmission gear 18, and the outer side of the multiple groups of rotating shafts 19 is fixedly connected to the second transmission gear 28, and the second transmission gear 28 is meshed with the first transmission gear 18, and the side wall of the clamping plate 2 is fixedly connected to the baffle 15;

[0038] First, in the process of the square slide 10 moving upward along the inclined groove 14, since the third rack 22 is in a fixed state, the rotating shaft 19 and the third transmission gear 20 moving with the square slide 10 rotate clockwise, and then under the action of the first transmission gear 18 and the second transmission gear 28, all the rotating shafts 19 are driven to rotate, and the rotating shaft 19 drives the rotating cylinder 11 to rotate through the fixed cylinder 23. Since the metal product is located on the upper side of the rotating cylinder 11, the rotating rotating cylinder 11 will drive the metal product to move backward (with a rotation speed of 100 km / h). Figure 3 As a result, the metal product moves obliquely upward with the moving frame 3 and moves backward relative to the moving frame 3 until the metal product and the baffle 15 abut against each other. At this time, under the obstruction of the baffle 15, the metal product will not move backward but will move upward with the moving frame 3 until the metal product moves into the upper fixture of the tensile testing machine.

[0039] like Fig.12 , Fig.13 , Fig.14A shaking assembly for improving the heat dissipation of metal products is installed on the moving frame 3. The shaking assembly includes a control groove 31 opened on the upper side of the moving frame 3, one end of one rotating shaft 19 extends to the control groove 31 and is rotatably connected to the control groove 31, and the rotating shaft 19 is located in the control groove 31. One side is fixedly connected to a first ratchet 32, and a knocking plate 12 is slidably connected in the control groove 31. A fourth rack 36 is fixedly connected to the lower side of the knocking plate 12. A fourth connecting rod 33 is rotatably connected in the control groove 31, and a circular plate 35 is fixedly sleeved on the outer side of the fourth connecting rod 33. A torsion spring 34 is fixedly connected between the circular plate 35 and the side wall of the control groove 31. Multiple groups of square grooves are opened on the outer side of the circular plate 35, and ratchets 37 are slidably sleeved in the multiple groups of square grooves. A second spring 40 is fixedly connected between the ratchet 37 and the square grooves, and a fourth transmission gear 38 is fixedly sleeved on the outer side of the fourth connecting rod 33, and the fourth transmission gear 38 is meshed with the fourth rack 36;

[0040] First, when the rotating shaft 19 rotates clockwise, the rotating shaft 19 drives the first ratchet 32 ​​to rotate clockwise. Due to the special shape of the first ratchet 32, when the first ratchet 32 ​​rotates clockwise, refer to the attached Fig.13The first ratchet 32 ​​and the ratchet teeth 37 are against each other, but they will not drive the circular plate 35 to rotate. Therefore, during the installation of the metal product, the knocking plate 12 will not move. When the tension test of the metal product is completed, the clamp of the tension tester is released, and the metal product falls on the upper side of the moving frame 3 and the rotating cylinder 11 under the action of its own gravity. At this time, the hydraulic rod 9 is started again, and the hydraulic rod 9 drives the sliding frame 6 to move downward, thereby causing the first ratchet 32 ​​to rotate counterclockwise. At this time, when the first ratchet 32 ​​and the ratchet teeth 37 are against each other, the first ratchet 32 ​​will drive the fourth connecting rod 33 and the circular plate 35 to rotate clockwise, thereby pulling the torsion spring 34. When the first ratchet 32 ​​and the ratchet teeth 37 are disconnected, at this time, under the action of the torsion spring 34, the circular plate 35 and the fourth connecting rod 33 will rotate counterclockwise until the first ratchet 32 ​​and the ratchet teeth 37 are against each other again, thereby causing the fourth connecting rod 33 to rotate back and forth during the counterclockwise rotation of the first ratchet 32. The four connecting rods 33 drive the fourth rack 36 to move up and down through the fourth transmission gear 38, and the fourth rack 36 drives the striking plate 12 to move up and down. In the process of the striking plate 12 moving up and down, when the striking plate 12 moves upward, the striking plate 12 and the metal product are abutted and drive the metal product to move upward. When the striking plate 12 moves downward, the striking plate 12 drives the metal product to move downward. When the metal product, the rotating cylinder 11 and the moving frame 3 are abutted, the metal product and the striking plate 12 are disconnected until the striking plate 12 moves upward again, thereby causing the striking plate 12 to drive the metal product to move up and down and form a shaking process in the process of the striking plate 12 moving up and down. After the tensile test of the metal product is completed, the metal product will become hot due to the stretching, driving the metal product to shake, which can accelerate the heat dissipation of the metal product. After the metal product is removed from the tensile testing machine fixture, the heat dissipation of the metal product is accelerated, which can greatly reduce the static time of the metal product, thereby improving the detection efficiency of the metal product.

[0041] like Fig.10 , Fig.15 A control assembly for controlling the upward movement of the knocking plate 12 is installed on the upper side of the moving frame 3, and the control assembly includes a second ratchet 39 fixedly sleeved on the outer side of the fourth connecting rod 33, a second connecting plate 29 is slidably connected in the control groove 31, the second connecting plate 29 is located at the lower side of the second ratchet 39, a third connecting rod 41 is fixedly connected to the side wall of the second connecting plate 29, one end of the third connecting rod 41 extends into the moving frame 3, the third connecting rod 41 is located in the moving frame 3 and is fixedly connected to the moving plate 13 on one side, the side wall of the moving plate 13 is fixedly connected to the second connecting rod 24, the second connecting rod 24 extends from the side of the moving plate 13 to the moving cylinder 25 and abuts against the inner wall of the moving cylinder 25;

[0042] First, after placing the metal product on the rotating cylinder 11, the moving cylinder 25 will move downward relative to the moving frame 3, the moving cylinder 25 and the second connecting rod 24 will abut against each other and drive the second connecting rod 24 and the moving plate 13 to move downward, and the moving plate 13 drives the second connecting plate 29 to move downward through the third connecting rod 41. The disconnection between the second connecting plate 29 and the second ratchet 39 will not affect the normal rotation of the second ratchet 39. After the metal product completes the tensile test, although the clamp on the upper side of the tensile testing machine is loosened, the metal product may still be stuck in the clamp, and the metal product does not fall on the moving frame 3 and the rotating cylinder 11. Therefore, when the metal product is stuck on the clamp and does not fall off, the moving cylinder 25 will not move downward relative to the moving frame 3, the second connecting rod 24, the moving plate 13 and the third connecting rod 41 will not move downward, but at this time it is in the state of unloading. Fig.13 , the rotating shaft 19 drives the first ratchet 32 ​​to rotate counterclockwise, and the first ratchet 32 ​​drives the circular plate 35 to rotate clockwise through the ratchet teeth 37. Due to the special shape of the second ratchet 39, when the second ratchet 39 rotates clockwise, the second connecting plate 29 does not hinder the ratchet teeth 37, but the second connecting plate 29 hinders the ratchet teeth 37 from rotating counterclockwise. In this process, Fig.16 When a tooth (A1) of the first ratchet 32 ​​abuts against one of the ratchet teeth 37 (B1), the rotating first ratchet 32 ​​drives the circular plate 35 to rotate in the manner of A1-B1. When A1 and B1 are disconnected, B1 loses the power to rotate, but under the obstruction of the second connecting plate 29, the circular plate 35 as a whole is in a stationary state until another tooth (A2) of the first ratchet 32 ​​moves to the upper side of another ratchet tooth 37 (B2), A2 and B2 abut against each other, and then continue to drive B1, that is, the circular plate 35 as a whole to rotate, so that the circular plate 35 rotates in the clockwise direction all the time, thereby causing the striking plate 12 to move upward, wherein, Fig.15 and Fig.13 Different viewing directions, Fig.15 yes Fig.13 The rear view, that is, Fig.15 The direction of movement of the internal structure and Fig.13The inner structure moves in the opposite direction. During this process, by changing the gear transmission ratio, the speed at which the striking plate 12 moves upward is greater than the overall vertical downward speed of the moving frame 3, that is, the striking plate 12 will move upward relative to the clamp 2 until the striking plate 12 and the metal product abut against each other, forming a collision with the metal product, reducing the possibility of the metal product being stuck on the fixture, thereby ensuring the normal unloading effect of the metal product. When the metal product can fall from the fixture, the metal product and the moving cylinder 25 abut against each other and drive the moving cylinder 25 to move downward. The moving cylinder 25 drives the second connecting plate 29 to move downward through the third connecting rod 41. The disconnection between the second connecting plate 29 and the second ratchet 39 will not affect the normal rotation of the second ratchet 39. During the unloading process, the rotating shaft 19 drives the first ratchet 32 ​​to rotate counterclockwise, and the first ratchet 32 ​​drives the circular plate 35 to rotate clockwise through the ratchet teeth 37. During this process, Fig.16 When a tooth (A1) of the first ratchet 32 ​​and one of the ratchet teeth 37 (B1) collide with each other, the rotating first ratchet 32 ​​will drive the circular plate 35 to rotate in the manner of A1-B1. When A2 and B2 are disconnected, B1 loses the power to rotate and there is no obstruction from the second connecting plate 29. At this time, under the action of the torsion spring 34, the circular plate 35 rotates counterclockwise back to its original position until another tooth (A2) of the first ratchet 32 ​​and this ratchet tooth 37 (B1) collide with each other again, thereby causing the circular plate 35 to rotate back and forth as a whole.

[0043] Working principle: When a metal product needs to be tested for tension, first rotate the threaded rod 7. Since the threaded rod 7 and the threaded plate 5 are threadedly connected, and the threaded plate 5 and the rotating groove 4 are slidably connected to each other, the rotating threaded rod 7 will drive the two threaded plates 5 to move away from or towards each other. The threaded plate 5 drives the clamping plate 2 and the moving frame 3 until the overall position meets the working requirements. The metal product is placed on the upper side of the rotating cylinder 11 ( Figure 2 The cross-like structure in the figure represents the metal product), the hydraulic rod 9 is started, the hydraulic rod 9 drives the slide frame 6 to move upward, the slide frame 6 drives the square slide cylinder 10 to move upward through the slider 16 and the first connecting rod 17, and under the limiting effect of the inclined groove 14, the square slide cylinder 10 moves obliquely upward along the inclined groove 14, the square slide cylinder 10 drives the moving frame 3 to move obliquely upward, and the moving frame 3 drives the metal product to move obliquely upward until one end of the metal product extends into the clamp of the tensile testing machine, at this time, the hydraulic rod 9 is closed, and the metal product is clamped by the clamp of the tensile testing machine, and the tensile testing machine is started at this time to start the testing operation, the above are all prior art, and no redundant elaboration is made;

[0044] In the process of the square slide 10 moving upward along the inclined groove 14, since the third rack is in a fixed state, the rotating shaft 19 and the third transmission gear 20 moving with the square slide 10 rotate clockwise, and then under the action of the first transmission gear 18 and the second transmission gear 28, all the rotating shafts 19 are driven to rotate, and the rotating shaft 19 drives the rotating cylinder 11 to rotate through the fixed cylinder 23. Since the metal product is located on the upper side of the rotating cylinder 11, the rotating rotating cylinder 11 will drive the metal product to move backward (with a rotation speed of 100 km / h). Figure 3 ), and thus the metal product moves backward relative to the moving frame 3 as it moves obliquely upward with the moving frame 3, until the metal product and the baffle 15 abut against each other. At this time, under the obstruction of the baffle 15, the metal product will not move backward, but will only move upward with the moving frame 3 until the metal product moves into the upper fixture of the tensile testing machine;

[0045] After the tension test is completed, the clamp is started again to disconnect the metal product and the clamp. At this time, the hydraulic rod 9 is started again, and the hydraulic rod 9 drives the sliding frame 6 to move downward, thereby causing the first ratchet 32 ​​to rotate counterclockwise. At this time, when the first ratchet 32 ​​and the ratchet 37 are against each other, the first ratchet 32 ​​will drive the fourth connecting rod 33 and the circular plate 35 to rotate clockwise, thereby pulling the torsion spring 34. When the first ratchet 32 ​​and the ratchet 37 are disconnected, at this time, under the action of the torsion spring 34, the circular plate 35 and the fourth connecting rod 33 will rotate counterclockwise until the first ratchet 32 ​​and the ratchet 37 are against each other again, thereby causing the fourth connecting rod 33 to rotate back and forth during the counterclockwise rotation of the first ratchet 32. The fourth connecting rod 33 drives the fourth rack 36 to move up and down through the fourth transmission gear 38, and the fourth rack 36 drives the knocking plate 12 to move up and down. In the process of the striking plate 12 moving up and down, when the striking plate 12 moves upward, the striking plate 12 and the metal product are against each other and drive the metal product to move upward. When the striking plate 12 moves downward, the striking plate 12 drives the metal product to move downward. After the metal product, the rotating cylinder 11 and the moving frame 3 are against each other, the metal product and the striking plate 12 are disconnected until the striking plate 12 moves upward again, thereby causing the striking plate 12 to drive the metal product to move up and down to form a shaking process. After the tensile test of the metal product is completed, the metal product will become hot due to the effect of stretching, driving the metal product to shake, which can accelerate the heat dissipation of the metal product. After the metal product is removed from the clamp of the tensile testing machine, the heat dissipation of the metal product is accelerated, which can greatly reduce the static time of the metal product, thereby improving the detection efficiency of the metal product.

[0046] After the metal product has completed the tensile test, although the clamp on the upper side of the tensile testing machine is loosened, the metal product may still be stuck in the clamp, and the metal product has not fallen on the moving frame 3 and the rotating cylinder 11. Therefore, when the metal product is stuck on the clamp and does not fall off, the moving cylinder 25 will not move downward relative to the moving frame 3, and the second connecting rod 24, the moving plate 13 and the third connecting rod 41 will not move downward, but at this time they are in the state of unloading. Fig.13 , the rotating shaft 19 drives the first ratchet 32 ​​to rotate counterclockwise, and the first ratchet 32 ​​drives the circular plate 35 to rotate clockwise through the ratchet teeth 37. Due to the special shape of the second ratchet 39, when the second ratchet 39 rotates clockwise, the second connecting plate 29 does not hinder the ratchet teeth 37, but the second connecting plate 29 hinders the ratchet teeth 37 from rotating counterclockwise. In this process, Fig.16 When a tooth (A1) of the first ratchet 32 ​​abuts against one of the ratchet teeth 37 (B1), the rotating first ratchet 32 ​​drives the circular plate 35 to rotate in the manner of A1-B1. When A1 and B1 are disconnected, B1 loses the power to rotate, but under the obstruction of the second connecting plate 29, the circular plate 35 as a whole is in a stationary state until another tooth (A2) of the first ratchet 32 ​​moves to the upper side of another ratchet tooth 37 (B2), A2 and B2 abut against each other, and then continue to drive B1, that is, the circular plate 35 as a whole to rotate, so that the circular plate 35 rotates in the clockwise direction all the time, thereby causing the striking plate 12 to move upward, wherein, Fig.15 and Fig.13 Different viewing directions, Fig.15 yes Fig.13 The rear view, that is, Fig.15 The direction of movement of the internal structure and Fig.13 The movement direction of the internal structure is opposite. During this process, the speed at which the striking plate 12 moves upward is greater than the overall vertical downward speed of the moving frame 3, that is, the striking plate 12 will move upward relative to the clamping plate 2 until the striking plate 12 and the metal product abut against each other, forming a collision with the metal product, reducing the possibility of the metal product being stuck on the clamp, thereby ensuring the normal unloading effect of the metal product. When the metal product can fall from the clamp, the metal product and the moving cylinder 25 abut against each other and drive the moving cylinder 25 to move downward. The moving cylinder 25 drives the second connecting plate 29 to move downward through the third connecting rod 41. The disconnection between the second connecting plate 29 and the second ratchet 39 will not affect the normal rotation of the second ratchet 39. During the unloading process, the rotating shaft 19 drives the first ratchet 32 ​​to rotate counterclockwise, and the first ratchet 32 ​​drives the circular plate 35 to rotate clockwise through the ratchet teeth 37. During this process, Fig.16When a tooth (A1) of the first ratchet 32 ​​and one of the ratchet teeth 37 (B1) collide with each other, the rotating first ratchet 32 ​​will drive the circular plate 35 to rotate in the manner of A1-B1. When A2 and B2 are disconnected, B1 loses the power to rotate and there is no obstruction from the second connecting plate 29. At this time, under the action of the torsion spring 34, the circular plate 35 rotates counterclockwise back to its original position until another tooth (A2) of the first ratchet 32 ​​and this ratchet tooth 37 (B1) collide with each other again, thereby causing the circular plate 35 to rotate back and forth as a whole.

Claims

1. A metal product tensile testing jig, comprising a fixing plate (1), characterized in that: The fixed plate (1) is slidably connected to two groups of threaded plates (5) at the lower side, the threaded plate (5) is fixedly connected to a clamping plate (2) at the lower side, the side wall of the clamping plate (2) is fixedly connected to a first connecting plate (8), the lower side of the first connecting plate (8) is fixedly connected to a hydraulic rod (9), the output end of the hydraulic rod (9) is fixedly connected to a sliding frame (6), a sliding block (16) is slidably connected inside the sliding frame (6), the side wall of the sliding block (16) is rotatably connected to a first connecting rod (17), the side wall of the clamping plate (2) is provided with an inclined groove (14), a square sliding cylinder (10) is slidably connected inside the inclined groove (14), the square sliding cylinder (10) is One side of the square slide cylinder (10) is fixedly connected to the first connecting rod (17), the other side of the square slide cylinder (10) is fixedly connected to a moving frame (3), a plurality of rotating shafts (19) are rotatably connected inside the moving frame (3), the outer side of each rotating shaft (19) is fixedly connected to a fixed cylinder (23), the outer side of the fixed cylinder (23) is fixedly connected to a rotating cylinder (11), the outer side of the rotating shaft (19) is rotatably sleeved with a connecting cylinder (42), the outer side of the connecting cylinder (42) is sleeved with a connecting frame (26), a first spring (43) is fixedly connected between the connecting frame (26) and the connecting cylinder (42), the A third connecting plate (27) is fixedly connected to the outer side of the connecting frame (26), and a moving cylinder (25) is fixedly connected to the outer side of the third connecting plate (27). The moving cylinder (25) and the moving frame (3) are slidably connected up and down. A rotating assembly for controlling the rotation of the rotating shaft (19) is installed in the clamping plate (2). The rotating assembly includes a deep groove (21) opened on the inner side wall of the inclined groove (14), and a third rack (22) is fixedly connected to the bottom of the deep groove (21). One of the rotating shafts (19) extends to the bottom of the square slide cylinder (10) and is rotatably connected to the square slide cylinder (10), and the rotating shaft (19) is located A third transmission gear (20) is fixedly connected to one side of the square slide (10), the third transmission gear (20) passes through the square slide (10), the third transmission gear (20) and the third rack (22) are meshed with each other, a plurality of transmission rods (30) are rotatably connected to the movable frame (3), the plurality of transmission rods (30) and the rotating shaft (19) are arranged in a staggered manner, the outer sides of the plurality of transmission rods (30) are fixedly connected to the first transmission gear (18), the outer sides of the plurality of rotating shafts (19) are fixedly connected to the second transmission gear (28), and the second transmission gear (28) and the first transmission gear (18) are meshed with each other.

2. A metal product tensile testing jig according to claim 1, characterized in that: A baffle (15) is fixedly connected to the side wall of the clamping plate (2).

3. A metal product tensile testing jig according to claim 1, characterized in that: The movable frame (3) is provided with a shaking assembly for improving the heat dissipation of the metal product. The shaking assembly comprises a control groove (31) opened on the upper side of the movable frame (3), one end of one of the rotating shafts (19) extends to the control groove (31) and is rotatably connected to the control groove (31), a first ratchet (32) is fixedly connected to one side of the rotating shaft (19) located in the control groove (31), a striking plate (12) is slidably connected in the control groove (31), a fourth rack (36) is fixedly connected to the lower side of the striking plate (12), and a toothed rack (36) is rotatably connected in the control groove (31). A fourth connecting rod (33), wherein a circular plate (35) is fixedly sleeved on the outer side of the fourth connecting rod (33), a torsion spring (34) is fixedly connected between the circular plate (35) and the side wall of the control groove (31), a plurality of groups of square grooves are opened on the outer side of the circular plate (35), ratchets (37) are slidably sleeved in the plurality of groups of square grooves, a second spring (40) is fixedly connected between the ratchets (37) and the square grooves, a fourth transmission gear (38) is fixedly sleeved on the outer side of the fourth connecting rod (33), and the fourth transmission gear (38) is meshed with a fourth rack (36).

4. A metal product tensile testing jig according to claim 3, characterized in that: A control assembly for controlling the striking plate (12) to move upward is installed on the upper side of the moving frame (3), the control assembly comprising a second ratchet (39) fixedly sleeved on the outer side of a fourth connecting rod (33), a second connecting plate (29) slidably connected in the control groove (31), the second connecting plate (29) being located at the lower side of the second ratchet (39), a third connecting rod (41) being fixedly connected to the side wall of the second connecting plate (29), one end of the third connecting rod (41) extending into the moving frame (3), a moving plate (13) being fixedly connected to one side of the third connecting rod (41) located in the moving frame (3), and a second connecting rod (24) being fixedly connected to the side wall of the moving plate (13).

5. The metal product tensile testing fixture according to claim 1, characterized in that: The outer side of the rotating cylinder (11) is fixedly sleeved with an anti-slip rubber sleeve.

6. A metal product tensile testing jig according to claim 1, characterized in that: A rotation groove (4) is formed on the lower side of the fixed plate (1), the threaded plate (5) and the rotation groove (4) are slidably connected, a threaded rod (7) is rotatably connected in the rotation groove (4), and the threaded rod (7) penetrates the threaded plate (5) and is threadedly connected to the threaded plate (5).

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