A tensile testing device for cable production

Abstract

The present invention belongs to the field of cable detection technology, and in particular to a tensile detection device for cable production and manufacturing. In view of the problem in the prior art that the uncertainty of the position of the fracture affects the accuracy of the relevant parameters of the force applied when performing cable tensile detection, the following scheme is proposed, including an operating table, the upper surface of the operating table is located at one end and a high platform area is reserved, the upper surface of the operating table is a section of the high platform area is removed as the detection area, and a rectangular slide groove is reserved in the middle of the detection area and crosses the front and rear sides. The present invention can cut the circular cross section into a square cross section by radially cutting the surface of the cable to be tested twice from mutually perpendicular directions with a symmetrical cutting cutter, which can not only make the cross section of the cable to be tested at that location smaller, so that the final fracture can be predicted to be located at that location, but also facilitate the calculation of the cross-sectional area of ​​the fracture, and then obtain the tensile strength according to the tensile strength calculation formula.

Description

Technical Field

[0001] The present invention relates to the technical field of cable detection, and in particular to a tensile detection device for cable production. Background Art

[0002] After production, wires and cables need to undergo various tests, such as compression resistance, tensile strength, insulation, etc. For the tensile strength test of cables, the traditional testing device exposes the cables directly to the outside and stretches them. Existing wire and cable stretching testing devices usually have a simple structure and cannot stably clamp and fix the cables. During the stretching process, the cables are prone to fall off, causing the cables to be thrown out and injure the staff, which not only affects the accuracy of the test.

[0003] After searching the prior art, it was found that in order to solve this problem, some protective covers were set up, and some of them concealed the stretching parts. However, these operations will undoubtedly lead to the inability to make an obvious judgment on the fracture position in the first time during the detection process. Therefore, we propose a new type of stretching detection device that can prevent accidental injury caused by the cable being thrown out after the fracture and can clearly and correctly predict the fracture position. Summary of the invention

[0004] In view of the technical problem in the prior art that the uncertainty of the fracture position affects the accuracy of the relevant parameters of the force applied during cable tensile testing, the present invention adopts the following technical solution:

[0005] A tensile testing device for cable manufacturing, comprising an operating table with an opening downward and an overall rectangular box structure, wherein a high platform area is reserved at one end of the upper surface of the operating table, a section of the upper surface of the operating table except the high platform area is a testing area, a rectangular slide groove is reserved in the middle of the testing area and runs across the front and rear sides, and a T-shaped slide is slidably connected in the rectangular slide groove, an auxiliary support is fixed in the middle of the upper surface of the T-shaped slide near the front edge, and an arc groove matching the diameter of the cable to be tested is opened in the middle of the upper surface of the auxiliary support; a A vertical C-shaped slide rail, and the top end of the C-shaped slide rail is slidably connected to a cylindrical slider, a cantilever rod extending above the arc groove is fixed to the side of the cylindrical slider, a symmetrical cutting knife is fixed to the lower surface of one end of the cantilever rod away from the cylindrical slider, a fixed clamping mechanism 1 and a movable clamping mechanism 2 are respectively arranged on both sides of the rectangular slide groove on the upper surface of the detection area of ​​the operating table, and the movable clamping mechanism 2 is located on the side close to the high platform area, a gear through hole is opened in the middle of the high platform area, and a traction mechanism is arranged at the gear through hole, and the traction mechanism includes a tensioner arranged between the end of the rack push rod and the movable clamping mechanism 2.

[0006] A further configuration is that a vertical cutter receiving groove is opened in the middle of the bottom of the arc-shaped groove, and the cutter receiving groove is a rectangular structure. Through the set cutter receiving groove, when the symmetrical cutting cutter cuts down, it can be ensured that the cross-section after cutting is square, thereby making the calculation of the cross-section more accurate.

[0007] A further arrangement is that an electric push rod is fixed between the lower surface of the cylindrical slider and the upper surface of the T-shaped slide, and the top end of the extension rod of the electric push rod is fixed to the lower surface of the cylindrical slider, and the mother tube base of the electric push rod is fixed to the upper surface of the T-shaped slide; and two balls are embedded on the side of the outer wall of the cylindrical slider away from the cantilever rod; stable power can be provided for the downward cutting and resetting of the symmetrical cutting cutter.

[0008] A further configuration is that the inner walls on both sides of the rectangular slide groove are respectively provided with symmetrical rectangular notches near the rear side, and the two rectangular notches are respectively embedded with symmetrical bar rails, and the two opposite sides of the T-shaped slide are respectively provided with anti-slip slide grooves that engage with the bar rails.

[0009] A further configuration is that the fixed clamping mechanism 1 includes a groove-type rail fixed away from the high platform area, and the opening of the groove-type rail faces the upper part of the rectangular slide, and a bearing seat 1 is slidably connected in the middle of the slide of the groove-type rail, and two symmetrical tapered roller bearings 1 are fixed in the bearing seat 1, and the same T-shaped pull rod is rotatably connected between the two tapered roller bearings 1, and the T-shaped pull rod includes a cap plate and a shaft column fixed in the middle of the cap plate, and a thrust ball bearing is fixed between the cap plate and the inner ring of the tapered roller bearing 1; a pull block 1 is fixed on the shaft column passing through the bearing seat; the movable clamping mechanism 2 includes a double-rod shaft seat fixed on the other side of the rectangular slide, and two sliding bearings with mutually parallel axis lines are embedded on the double-rod shaft seat, and the two sliding bearings A guide slide bar is slidably connected in the middle, and the same bearing seat 2 is fixed to the same end of the two guide slide bars, and two symmetrical tapered roller bearings 2 are embedded in the middle of the bearing seat 2, and the same rotating rod pull rod is rotatably connected between the two tapered roller bearings 2, and a C-shaped clamp is fixed to the end of the rotating rod pull rod close to the rectangular slide groove, and a pulling block 2 is slidably clamped in the C-shaped clamp; the same horizontal cable to be tested is fixed between the pulling blocks 1 and 2, and the axis line of the middle tensioning section of the cable to be tested is at the same height and parallel to the axis line of the arc groove; a positioning bolt is arranged in the middle of the upper surface of the groove-shaped rail, and when the gate is cut, it is only necessary to move the auxiliary support where the arc groove is located horizontally to the middle until the cable to be tested is clamped.

[0010] A further configuration is that the opposite sides of the pull block 1 and the pull block 2 are both configured to be L-shaped structures, and a vertical and parallel columnar pull rod 1 and a convex sliding column are respectively fixed to the upper surface of the horizontal plate on the side where the pull block 1 and the pull block 2 are close to each other; and symmetrical ear plates 1 and 2 are respectively fixed to the front and rear sides of the horizontal plate on the side where the pull block 1 and the pull block 2 are close to each other; the columnar pull rod 1 and the convex sliding column are both slidably sleeved with clamping cover blocks, and the clamping cover blocks are fixed to the corresponding ear plates 1 and 2 by bolts; so as to press the two ends of the cable to be tested onto the upper surfaces of the horizontal plates of the pull block 1 and the pull block 2.

[0011] A further configuration is that a horizontally penetrating anti-dropout pin hole is opened near the middle of the side surface of the convex sliding column, and a positioning pin is inserted in the anti-dropout pin hole; the distance between the center of the anti-dropout pin hole and the upper surface of the horizontal plate is greater than the thickness of the C-shaped caliper; through the positioning pin, the pull block 2 and the rotating rod pull rod can be fixed together even in the absence of pulling force.

[0012] A further configuration is that an elliptical perforation is provided in the middle of the clamping cover block, and an elliptical groove is provided on the lower surface of the clamping cover block near the circumferential edge of the elliptical perforation, and the center point of the elliptical groove is at an equal distance from the edge of the elliptical perforation; through holes for screwing and fixing are provided at both ends of the elliptical perforation; anti-rollover pads are provided on the upper surface of the T-shaped slide near the edges of both ends, which are used to fix the positions of pull blocks one and two at both ends of the T-shaped slide during cutting to prevent them from shaking, and through the provided elliptical groove, the contact area between the clamping cover block and the cable to be tested is increased when pressed down, thereby improving the anti-falling effect.

[0013] A further arrangement is that the traction mechanism includes an axis rod frame fixed on the upper surface of the platform area and located on both sides of the gear through hole, a same short axis rod is rotatably connected between the two axis rod frames, and the middle key of the short axis rod is connected with a coaxial large gear and a concentric small gear, and a part of the large gear passes through the gear through hole and is inserted into the interior of the operating table; a reduction motor is fixed to the lower surface of the operating table close to the lower surface of the platform area, and a worm gear meshing with the large gear is fixed to the top end of the output shaft of the reduction motor through a coupling; a axis rod seat adapted to the rack push rod is fixed to the upper surface of the platform area, and an anti-torsion slide tube is embedded in the axis rod seat, and the rack push rod is slidably connected in the anti-torsion slide tube.

[0014] A further configuration is that a control console is fixed on the front of the operating table near the high platform area, and the control switch of the control console is used to control the opening and closing of the reduction motor and the electric push rod as well as the forward and reverse starting.

[0015] The beneficial effects of the present invention are:

[0016] 1. By setting a clamping mechanism that can still rotate after the cable to be tested is tightened, the circular cross section can be cut into a square cross section by radially cutting the surface of the cable to be tested twice from mutually perpendicular directions with a symmetrical cutting cutter. This not only makes the cross section of the cable to be tested smaller at that location, so that the final fracture site can be predicted at that location, but also facilitates the calculation of the cross-sectional area at the fracture site, and then the tensile strength is obtained according to the tensile strength calculation formula.

[0017] 2. By setting up the bar track and anti-slip groove, when the T-shaped slide is pushed and withdrawn multiple times, it can still ensure that the height of the arc groove matches the outer wall of the tightened cable to be tested, thereby preventing slipping during cutting and ensuring that a regular square cross-section is cut.

[0018] 3. By setting up a large gear driven by a worm, once the sample breaks, there will be no reverse thrust to affect the forced rotation of the reduction motor, which effectively protects the reduction motor; and during normal pulling, the output tension is stable and strong, and the pulling can be stopped at any time to take tension readings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of a tensile testing device for cable production and manufacturing proposed by the present invention during testing;

[0020] Figure 2 This is a front view of a tensile testing device for cable production and manufacturing proposed by the present invention;

[0021] Figure 3 A top view of a tensile testing device for cable production and manufacturing proposed by the present invention;

[0022] Figure 4 This is a schematic diagram of the bottom structure of a tensile testing device for cable production and manufacturing proposed by the present invention;

[0023] Figure 5 This is a schematic structural diagram of a tensile testing device for cable production and manufacturing proposed by the present invention before testing;

[0024] Figure 6 This is a schematic diagram of the overall structure of a pulling block 1 in a tensile testing device for cable production and manufacturing proposed by the present invention;

[0025] Figure 7 This is a bottom view structural schematic diagram of a clamping cover block in a tensile testing device for cable manufacturing proposed by the present invention;

[0026] Figure 8 This is a schematic diagram of the structure of an operating table in a tensile testing device for cable production and manufacturing proposed by the present invention;

[0027] Fig. 9 The present invention is a schematic diagram of the assembly structure of a pulling block 2 in a tensile testing device for cable production.

[0028] In the figure: 1, operating table; 101, rectangular slide; 102, rectangular notch; 103, gear hole; 104, high platform area; 2, bearing seat 1; 3, grooved rail; 4, positioning bolt; 5, pull block 1; 501, columnar pull rod 1; 502, ear plate 1; 6, symmetrical cutting cutter; 7, columnar slider; 8, C-shaped slide rail; 9, electric push rod; 10, strip rail; 11, pull block 2; 1101, convex slide column; 1102, anti-drop pin hole; 1103, ear plate 2; 1104, positioning pin; 12, rotating rod pull rod; 121, C-shaped caliper; 13. Bearing seat 2; 14. Tensioner; 15. Big gear; 151. Concentric small gear; 16. Rack push rod; 17. Reducer motor; 171. Worm; 18. Control console; 19. Guide slide bar; 20. T-shaped slide; 2001. Anti-turnover pad; 21. Auxiliary support; 2101. Arc groove; 22. Cable to be tested; 23. Clamping cover block; 231. Elliptical perforation; 232. Elliptical groove; 233. Through hole; 24. Shaft rod seat; 25. T-shaped pull rod; 26. Thrust ball bearing; 27. Double rod shaft seat. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0030] In this embodiment, refer to Figure 1-9A tensile testing device for cable manufacturing comprises an operating table 1 with an opening downwardly and a rectangular box structure as a whole, a high platform area 104 being reserved at one end of the upper surface of the operating table 1, a section of the upper surface of the operating table 1 except the high platform area 104 is a testing area, a rectangular slide groove 101 which runs across the front and rear sides is reserved in the middle of the testing area, and a T-shaped slide 20 is slidably connected in the rectangular slide groove 101, an auxiliary support 21 is fixed in the middle of the upper surface of the T-shaped slide 20 near the front edge, and an arc groove 2101 which is adapted to the diameter of the cable 22 to be tested is opened in the middle of the upper surface of the auxiliary support 21; a vertical C-shaped slide rail 8 is fixed to the upper surface of the T-shaped slide 20 near the middle of the rear side, and a cylindrical slider 7 is slidably connected to the top of the C-shaped slide rail 8, a cantilever rod extending to the top of the arc groove 2101 is fixed on the side of the cylindrical slider 7, and the cantilever rod is away from the cylindrical slider A symmetrical cutting cutter 6 is fixed to the lower surface of one end of the block 7. The symmetrical cutting cutter 6 cuts the surface of the cable 22 to be tested radially twice from mutually perpendicular directions to cut the circular cross section into a square cross section, which not only makes the cross section of the cable 22 to be tested smaller at this location, so that the final fracture site can be predicted to be located at this location, but also facilitates the calculation of the cross-sectional area of ​​the fracture site, and then the tensile strength is obtained according to the tensile strength calculation formula; the upper surface of the detection area of ​​the operating table 1 is located on both sides of the rectangular slide groove 101, and a fixed clamping mechanism 1 and a movable clamping mechanism 2 are respectively provided, and the movable clamping mechanism 2 is located on the side close to the high platform area 104, and a gear through hole 103 is opened in the middle of the high platform area 104, and a traction mechanism is provided at the gear through hole 103, and the traction mechanism includes a rack push rod 16, and a tensioner 14 is provided between the end and the movable clamping mechanism 2.

[0031] In the present invention, a vertical cutter receiving groove is opened in the middle of the bottom of the arc groove 2101, and the cutter receiving groove is a rectangular structure. Through the set cutter receiving groove, when the symmetrical cutting cutter 6 cuts down, it can be ensured that the cross-section after cutting is square, thereby making the calculation of the cross-section more accurate.

[0032] Among them, the same electric push rod 9 is fixed between the lower surface of the cylindrical slider 7 and the upper surface of the T-shaped slide 20, and the top end of the extension rod of the electric push rod 9 is fixed to the lower surface of the cylindrical slider 7, and the mother tube base of the electric push rod 9 is fixed to the upper surface of the T-shaped slide 20; and two balls are embedded on the side of the outer wall of the cylindrical slider 7 away from the cantilever rod; it can provide stable power for the downward cutting and resetting of the symmetrical cutting cutter 6.

[0033] Among them, the inner walls on both sides of the opposite sides of the rectangular slide groove 101 are respectively provided with symmetrical rectangular notches 102 near the rear side, and the two rectangular notches 102 are respectively embedded with symmetrical bar rails 10, and the two opposite sides of the T-shaped slide 20 are respectively provided with anti-slip slide grooves engaged with the bar rails 10; through the provision of the bar rails 10 and the anti-slip slide grooves, it is possible to ensure that the height of the arc groove 2101 is consistent with the outer wall of the tightened cable to be tested 22 when the T-shaped slide 20 is pushed and withdrawn multiple times, thereby preventing slipping during cutting and ensuring that a regular square cross-section is cut.

[0034] Please refer to Figure 5-7 and Fig. 9 The fixed clamping mechanism 1 includes a groove-type rail 3 fixed away from the high platform area 104, and the opening of the groove-type rail 3 faces the upper side of the rectangular slide 101, and a bearing seat 2 is slidably connected in the middle of the slide of the groove-type rail 3, and two mutually symmetrical tapered roller bearings 1 are fixed in the bearing seat 2, and the same T-shaped pull rod 25 is rotatably connected between the two tapered roller bearings 1, and the T-shaped pull rod 25 includes a cap plate and a shaft column fixed in the middle of the cap plate, and a thrust ball bearing 26 is fixed between the cap plate and the inner ring of the tapered roller bearing 1; a pull block 5 is fixed on the shaft column passing through the bearing seat; the mobile clamping mechanism 2 includes a double-rod shaft seat 27 fixed on the other side of the rectangular slide 101, and two sliding bearings with mutually parallel axis lines are embedded in the double-rod shaft seat 27, and the two sliding bearings are slidably connected with guide slide rods 19, The same end of the two guide slide bars 19 is fixed with the same bearing seat 2 13, and two mutually symmetrical tapered roller bearings 2 are embedded in the middle of the bearing seat 2 13. The same rotating rod pull rod 12 is rotatably connected between the two tapered roller bearings 2, and the end of the rotating rod pull rod 12 close to the rectangular slide groove 101 is fixed with a C-shaped clamp 121, and a pull block 2 11 is slidably clamped in the C-shaped clamp 121; the same horizontal cable to be tested 22 is fixed between the pull block 1 5 and the pull block 2 11, and the axis line of the middle tension section of the cable to be tested 22 is at the same height and parallel to the axis line of the arc groove 2101; a positioning bolt 4 is provided in the middle of the upper surface of the grooved rail 3. When the gate is cut, the auxiliary support 21 where the arc groove 2101 is located only needs to be moved horizontally to the middle until the cable to be tested 22 is clamped.

[0035] Among them, the opposite sides of the pull block 1 5 and the pull block 2 11 are both set to an L-shaped structure, and the upper surface of the horizontal plate on the side where the pull block 1 5 and the pull block 2 11 are close to each other are respectively fixed with a vertical and parallel columnar pull rod 1 501 and a convex sliding column 1101; and the front and rear sides of the horizontal plate on the side where the pull block 1 5 and the pull block 2 11 are close to each other are respectively fixed with a symmetrical ear plate 1 502 and an ear plate 2 1103; the columnar pull rod 1 501 and the convex sliding column 1101 are both slidably sleeved with a clamping cover block 23, and the clamping cover block 23 is fixed to the corresponding ear plate 1 502 and the ear plate 2 1103 by bolts; it is used to press the two ends of the cable 22 to be tested onto the upper surface of the horizontal plate of the pull block 1 5 and the pull block 2 11.

[0036] Among them, a horizontal anti-dropout pin hole 1102 is opened near the middle of the side of the convex sliding column 1101, and a positioning pin 1104 is inserted in the anti-dropout pin hole 1102; the distance between the center of the anti-dropout pin hole 1102 and the upper surface of the horizontal plate is greater than the thickness of the C-shaped caliper 121; through the setting of the positioning pin 1104, the pull block 11 and the rotating rod pull rod 12 can be fixed together even in the absence of pulling force.

[0037] Please refer to Figure 2 , Figure 6 and Figure 7 An elliptical through hole 231 is provided in the middle of the clamping cover block 23, and an elliptical groove 232 is provided on the lower surface of the clamping cover block 23 near the circumferential edge of the elliptical through hole 231, and the center point of the elliptical groove 232 is at an equal distance from the edge of the elliptical through hole 231; through holes 233 for screwing and fixing are provided at both ends of the elliptical through hole 231; anti-flip pads 2001 are provided on the upper surface of the T-shaped slide 20 near the edges of both ends, which are used to fix the positions of the pull blocks 1 5 and the pull blocks 2 11 at both ends of the T-shaped slide 20 during cutting to prevent them from shaking. Through the provided elliptical groove 232, the contact area between the clamping cover block 23 and the cable to be tested 22 is increased when it is pressed down, thereby improving the anti-falling effect.

[0038] Please refer to Figure 4-5 and Figure 8The traction mechanism includes an axial rod frame fixed on the upper surface of the platform area 104 and located on both sides of the gear through hole 103. The same short axial rod is rotatably connected between the two axial rod frames, and the middle key of the short axial rod is connected with a coaxial large gear 15 and a concentric small gear 151, and a part of the large gear 15 passes through the gear through hole 103 and is inserted into the interior of the operating table 1; a reduction motor 17 is fixed to the lower surface of the operating table 1 near the lower surface of the platform area 104, and a worm 171 that meshes with the large gear 15 is fixed to the top of the output shaft of the reduction motor 17 through a coupling; an axial rod seat 24 that is compatible with the rack push rod 16 is fixed to the upper surface of the platform area 104, and an anti-torsion slide tube is embedded in the axial rod seat 24, and the rack push rod 16 is slidably connected in the anti-torsion slide tube; through the large gear 15 driven to rotate by the worm 171, once the sample breaks, there will be no reverse thrust to affect the forced rotation of the reduction motor 17, thereby effectively protecting the reduction motor 17.

[0039] A control console 18 is fixed on the front of the operating table 1 near the high platform area 104 , and a control switch of the control console 18 is used to control the opening and closing of the reduction motor 17 and the electric push rod 9 as well as the forward and reverse starting.

[0040] When the device is in use, firstly, the two ends of the cable 22 to be tested are bent into elliptical hooks, and then mounted on the corresponding cylindrical pull rod 501 and the convex sliding column 1101 in turn, and then clamped and fixed with the clamping cover block 23, and then the reduction motor 17 in the traction mechanism is controlled to start forward until the cable 22 to be tested is tightened; at this time, the T-shaped slide 20 on the rear side is pushed toward the tightened cable 22 to be tested, until the arc groove 2101 on the auxiliary support 21 clamps the cable 22 to be tested; at this time, the extension rod of the electric push rod 9 is controlled to retract, and two small semi-cylinders can be cut off from the cable 9 to be tested, and then the cable 9 to be tested is rotated 90 degrees and cut again. At this time, a cube structure with a cross-section smaller than the original diameter can be reserved, and its cross-section is square, and then a tensile test can be carried out; the tension reading can be recorded at the moment of fracture.

[0041] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A tensile testing device for cable manufacturing, comprising an operating table (1) with an opening downward and an overall rectangular box structure, wherein a high platform area (104) is reserved at one end of the upper surface of the operating table (1), and a section of the upper surface of the operating table (1) excluding the high platform area (104) is a testing area, characterized in that: A rectangular slide groove (101) is reserved in the middle of the detection area and runs across the front and rear sides, and a T-shaped slide table (20) is slidably connected in the rectangular slide groove (101), an auxiliary support table (21) is fixed in the middle of the upper surface of the T-shaped slide table (20) near the front edge, and an arc groove (2101) matching the diameter of the cable (22) to be tested is opened in the middle of the upper surface of the auxiliary support table (21); a vertical C-shaped slide rail (8) is fixed on the upper surface of the T-shaped slide table (20) near the middle of the rear side, and a columnar slide block (7) is slidably connected to the top of the C-shaped slide rail (8), and an extension block (2101) is fixed on the side of the columnar slide block (7). A cantilever rod is arranged above the arc groove (2101), and a symmetrical cutting knife (6) is fixed to the lower surface of one end of the cantilever rod away from the cylindrical slider (7); a fixed clamping mechanism 1 and a movable clamping mechanism 2 are respectively arranged on both sides of the upper surface of the detection area of ​​the operating table (1) located at the rectangular slide groove (101), and the movable clamping mechanism 2 is located on the side close to the high platform area (104); a gear through hole (103) is opened in the middle of the high platform area (104), and a traction mechanism is arranged at the gear through hole (103), and the traction mechanism includes a tensioner (14) arranged between the end of the rack push rod (16) and the movable clamping mechanism 2; The inner walls of the two opposite sides of the rectangular slide groove (101) are respectively provided with mutually symmetrical rectangular notches (102) near the rear side, and mutually symmetrical bar tracks (10) are respectively embedded in the two rectangular notches (102), and the two opposite sides of the T-shaped slide table (20) are respectively provided with anti-slip slide grooves engaged with the bar tracks (10); The fixed clamping mechanism 1 includes a groove-shaped rail (3) fixed away from the platform area (104), and the opening of the groove-shaped rail (3) faces the upper side of the rectangular slide groove (101), and a bearing seat 1 (2) is slidably connected in the middle of the slide groove of the groove-shaped rail (3), and two mutually symmetrical tapered roller bearings 1 are fixed in the bearing seat 1 (2), and the same T-shaped pull rod (25) is rotatably connected between the two tapered roller bearings 1, and the T-shaped pull rod (25) includes a cap plate and a shaft column fixed in the middle of the cap plate, and a thrust ball bearing (26) is fixed between the cap plate and the inner ring of the tapered roller bearing 1; the shaft column passes through the bearing seat and is fixed with a pull block 1 (5); the movable clamping mechanism 2 includes a double-rod shaft seat (27) fixed on the other side of the rectangular slide groove (101), and two sliding bearings whose axis lines are parallel to each other are embedded in the double-rod shaft seat (27), The two sliding bearings are both slidably connected with guide slide bars (19), and the same bearing seat 2 (13) is fixed at the same end of the two guide slide bars (19), and two mutually symmetrical tapered roller bearings 2 are embedded in the middle of the bearing seat 2 (13), and the same rotating rod pull rod (12) is rotatably connected between the two tapered roller bearings 2, and a C-shaped clamp (121) is fixed at one end of the rotating rod pull rod (12) close to the rectangular slide groove (101), and a pull block 2 (11) is slidably clamped in the C-shaped clamp (121); the same horizontal cable to be tested (22) is fixed between the pull block 1 (5) and the pull block 2 (11), and the axis center line of the middle tension section of the cable to be tested (22) is at the same height and parallel to the axis center line of the arc groove (2101); a positioning bolt (4) is provided in the middle of the upper surface of the groove-shaped clamping rail (3); The traction mechanism comprises an axial rod frame fixed to the upper surface of the platform area (104) and located on both sides of the gear through hole (103); a same short axial rod is rotatably connected between the two axial rod frames, and the middle key of the short axial rod is connected to a coaxial large gear (15) and a coaxial small gear (151), and a part of the large gear (15) passes through the gear through hole (103) and is inserted into the interior of the operating table (1); a reduction motor (17) is fixed to the lower surface of the operating table (1) near the lower surface of the platform area (104), and a worm (171) meshing with the large gear (15) is fixed to the top end of the output shaft of the reduction motor (17) through a coupling; a axial rod seat (24) adapted to the rack push rod (16) is fixed to the upper surface of the platform area (104), and an anti-twist sliding tube is embedded in the axial rod seat (24), and the rack push rod (16) is slidably connected in the anti-twist sliding tube.

2. A tensile testing device for cable manufacturing according to claim 1, characterized in that: A vertical cutter receiving groove is provided in the middle of the bottom of the arc-shaped groove (2101), and the cutter receiving groove is a rectangular parallelepiped structure.

3. A tensile testing device for cable production according to claim 1, characterized in that: An electric push rod (9) is fixed between the lower surface of the cylindrical slider (7) and the upper surface of the T-shaped slide (20), and the top end of the extension rod of the electric push rod (9) is fixed to the lower surface of the cylindrical slider (7), and the mother tube base of the electric push rod (9) is fixed to the upper surface of the T-shaped slide (20); and two balls are embedded on the side of the outer wall of the cylindrical slider (7) away from the cantilever rod.

4. A tensile testing device for cable manufacturing according to claim 1, characterized in that: The opposite sides of the pull block 1 (5) and the pull block 2 (11) are both arranged in an L-shaped structure, and a vertical and parallel columnar pull rod 1 (501) and a convex sliding column (1101) are respectively fixed on the upper surface of the horizontal plate on the side where the pull block 1 (5) and the pull block 2 (11) are close to each other; and symmetrical ear plates 1 (502) and ear plates 2 (1103) are respectively fixed on the front and rear sides of the horizontal plate on the side where the pull block 1 (5) and the pull block 2 (11) are close to each other; the columnar pull rod 1 (501) and the convex sliding column (1101) are both slidably sleeved with a clamping cover block (23), and the clamping cover block (23) is fixed to the corresponding ear plate 1 (502) and ear plate 2 (1103) by bolts.

5. A tensile testing device for cable production according to claim 4, characterized in that: A horizontally penetrating anti-dropout pin hole (1102) is provided near the middle of the side surface of the convex sliding column (1101), and a positioning pin (1104) is inserted into the anti-dropout pin hole (1102); the distance between the center of the anti-dropout pin hole (1102) and the upper surface of the horizontal plate is greater than the thickness of the C-shaped caliper (121).

6. A tensile testing device for cable manufacturing according to claim 5, characterized in that: An elliptical through hole (231) is formed in the middle of the clamping cover block (23), and an elliptical groove (232) is formed on the lower surface of the clamping cover block (23) near the circumferential edge of the elliptical through hole (231), and the center point of the elliptical groove (232) is at an equal distance from the edge of the elliptical through hole (231); through holes (233) for screwing and fixing are formed at both ends of the elliptical through hole (231); and anti-turnover pads (2001) are provided on the upper surface of the T-shaped slide (20) near the edges of both ends.

7. A tensile testing device for cable manufacturing according to claim 1, characterized in that: A control console (18) is fixed on the front of the operating table (1) near the high platform area (104), and a control switch of the control console (18) is used to control the opening and closing of the reduction motor (17) and the electric push rod (9) as well as forward and reverse starting.

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