Stretching detection device for cable production

Abstract

The invention discloses a tensile detection device for cable production, and relates to the technical field of cable detection devices.The tensile detection device comprises a base, a protective cover is installed above the base, the protective cover is buckled with the base, a fixing base is installed on the upper end face of the base, and a tension meter is fixedly installed on one side of the upper end face of the fixing base; the other side of the upper end face of the fixing base is movably provided with a displacement base, the upper end face of the tension meter and the upper end face of the displacement base are each provided with a clamping device, the clamping device on one side is fixed to the detection end of the tension meter, the clamping device on the other side is fixedly welded to the upper end face of the displacement base, and each clamping device is composed of a sleeve and an adjusting cylinder. The sleeve and the adjusting cylinder are connected through a bearing, a through hole for a cable to penetrate through is formed in the adjusting cylinder, and a plurality of annularly distributed clamping plates are arranged in the through hole in the adjusting cylinder, and the problems that the cable fixing effect of the detection device is poor, and loosening is prone to occurring in the stretching process are solved.

Description

Technical Field

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

[0002] A tensile testing device for cable production is a professional device specially used to test the mechanical properties of wires and cables and related materials. Its core working principle is based on the tensile test theory in material mechanics. The device drives the loading beam to move through a servo motor or a variable frequency motor, thereby applying axial tension to the wire and cable sample fixed between the upper and lower clamps, using a force sensor to monitor the tension in real time, and combining a displacement measuring device to record the elongation of the sample. The computer control system will process these data, draw a tension-displacement curve, and calculate key mechanical performance indicators such as tensile strength, yield strength, and elongation at break.

[0003] For example, the Chinese authorized patent "A tensile strength testing device for cable production" with announcement number CN221124106U includes a base arranged at the bottom, vertical frames arranged at the tops of both ends of the base, a screw installed in the middle of the vertical frame, a first guide column symmetrically fixed on both sides of the screw, a servo motor arranged at one end of the screw, a tensile gauge installed in the middle of the top of the vertical frame, a fixing part installed on one side of the tensile gauge, and a moving block arranged on the screw and the first guide column, and also includes a moving part, and a moving part is arranged in the middle of the top of the moving block; the fixing part and the moving part both include a concave frame, a cylinder, a pressure plate, a column hole and a guide hole, the concave frame is respectively fixed on the vertical frame and the moving block, the top of the inner side of the concave frame is installed with a cylinder, the bottom end of the cylinder is installed with a pressure plate, the inner side of the cylinder is fixed with a second guide column, and the bottom end of the inner side of the concave frame is provided with a bearing block.

[0004] Although the above-mentioned existing technology can detect the tensile strength of the cable, the fixing effect of the cable is poor and it is easy to loosen during the stretching process, thereby affecting the detection accuracy. Therefore, it does not meet the existing needs. In this regard, we propose a tensile detection device for cable production. Summary of the invention

[0005] The object of the present invention is to provide a tensile testing device for cable production, so as to solve the problem that the testing device proposed in the above background technology has poor fixing effect on the cable and is easy to loosen during the stretching process.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a tensile testing device for cable production, comprising a base, a protective cover is installed above the base, and the protective cover is buckled with the base, a fixed seat is installed on the upper end surface of the base, a tensile meter is fixedly installed on one side of the upper end surface of the fixed seat, and a displacement seat is movably installed on the other side of the upper end surface of the fixed seat, the upper end surfaces of the tensile meter and the displacement seat are both provided with clamping devices, one side of the clamping device is fixed to the detection end of the tensile meter, and the other side of the clamping device is welded and fixed to the upper end surface of the displacement seat, the clamping device consists of a sleeve and an adjusting cylinder, and the sleeve is connected to the adjusting cylinder by a bearing, a through hole is provided inside the adjusting cylinder for the cable to pass through, and a plurality of annularly distributed clamping plates are provided in the through hole inside the adjusting cylinder.

[0007] Preferably, a servo motor is fixedly installed on one side of the fixed seat, a threaded transmission rod is rotatably installed inside the fixed seat, and the output shaft of the servo motor and the threaded transmission rod are fixed by a coupling, a movable block that cooperates with its thread is installed outside the threaded transmission rod, and the upper end of the movable block is fixed to the bottom of the displacement seat.

[0008] Preferably, both ends of the sleeve are provided with annularly distributed movable grooves, both ends of the adjusting cylinder are fixedly provided with chucks, one end of the chuck is provided with a plurality of annularly distributed claws, the limiting thread on one end face of the claw is engaged with the plane thread on the contact end face of the chuck, and the claw and the movable groove are limited by sliding, and the two ends of the clamping plate are respectively fixed to the corresponding claws.

[0009] Preferably, an arc groove is reserved at the middle position of the sleeve, and an adjustment plate is welded and fixed to the position of the adjustment sleeve corresponding to the arc groove of the sleeve.

[0010] Preferably, temperature regulating holes are provided at the front and rear of the upper end surface of the base, and a temperature regulating device is provided inside the base, the temperature regulating device consists of two heat exchangers, a four-way valve, a throttling device and a compressor, and one of the heat exchangers is installed in the cavity corresponding to the lower end of the temperature regulating hole.

[0011] Preferably, guide grooves are provided at the front and rear of the fixing seat, and the plates at the front and rear ends of the displacement seat are slidably limited with the guide grooves.

[0012] Preferably, transparent tempered glass is provided on all four sides of the shield.

[0013] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention is provided with a cable stretch detection mechanism. After fixing the two ends of the cable inside the clamping device, the servo motor is turned on, and its output shaft drives the threaded transmission rod to rotate. Under the friction between its external thread and the screw hole in the movable block, the rotational motion is converted into linear motion, and the corresponding clamping device is driven by the movable block to move in a direction away from the tensile meter, thereby realizing tension on the cable. Since the bottom of the clamping device on the other side is fixed to the detection end of the tensile meter, the tensile meter can accurately detect the value of the cable being stretched as the cable continues to move. The device can accurately measure the force of the cable during the stretching process. This accuracy is crucial for evaluating the quality, strength and durability of the cable, and helps to ensure that the produced cables meet established standards and specifications.

[0014] 2. The present invention is provided with a clamping device. After the cable passes through the through hole in the center of the adjusting cylinder, the staff only needs to pull the adjusting plate to drive the adjusting cylinder to rotate through the adjusting plate, thereby realizing the rotation of the chucks at both ends of the adjusting cylinder. Since the limiting thread on one end face of the claw is engaged with the flat thread on the contact end face of the chuck, the rotation of the flat thread drives the claw to move along the direction of the movable groove at both ends of the adjusting cylinder, so that the corresponding clamping plates continue to approach the direction of the cable until multiple clamping plates exert pressure on the cable in multiple directions to ensure the firmness of the cable at this position. The staff only needs to simply pull the adjusting plate to realize the rapid clamping of the cable, which can adapt to cables of different diameters, so that the clamping device has a wide range of applicability and can meet the clamping needs of cables of different specifications.

[0015] 3. The present invention is provided with a temperature regulating device, which consists of two heat exchangers, a four-way valve, a throttling device and a compressor. During cooling, the refrigerant first passes through the compressor to become a high-pressure gas, and then passes through the lower heat exchanger to condense and release heat to become a high-pressure liquid. The high-pressure liquid passes through the throttling device to become a low-temperature and low-pressure liquid, and then passes through the upper heat exchanger to evaporate and absorb heat to become a low-temperature and low-pressure gas, absorbing heat from the air around the cavity, and transferring the cold to the shield through the temperature regulating hole; during heating, the flow direction of the refrigerant is changed by the four-way valve, and the refrigerant first passes through the compressor to become a high-pressure gas, and then passes through the upper heat exchanger to condense and release heat to become a high-pressure liquid, heating the air around the cavity, and transferring the heat to the shield through the temperature regulating hole, which helps to simulate the performance of the cable under different climatic conditions, thereby more comprehensively evaluating the quality and durability of the cable. By accurately adjusting the ambient temperature, the test error caused by temperature changes can be reduced, and the accuracy and reliability of the tensile test can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A perspective view of the present invention; Figure 2 It is a schematic diagram of the internal structure of the present invention; Figure 3It is a side view of the fixing seat of the present invention; Figure 4 A three-dimensional diagram of the adjustment tube of the present invention; Figure 5 For the present invention Figure 2 A partial enlarged view of area A.

[0017] In the figure: 1. base; 2. protective cover; 3. fixed seat; 4. tensile gauge; 5. clamping device; 6. sleeve; 7. adjusting cylinder; 8. displacement seat; 9. servo motor; 10. guide groove; 11. temperature adjustment hole; 12. threaded transmission rod; 13. movable block; 14. heat exchanger; 15. temperature adjustment device; 16. claw; 17. clamping plate; 18. adjusting plate; 19. chuck; 20. movable groove. DETAILED DESCRIPTION

[0018] 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.

[0019] See also Figure 1-5 An embodiment of the present invention is as follows: a tensile testing device for cable production, comprising a base 1, a shield 2 is installed above the base 1, and the shield 2 is buckled with the base 1, and transparent tempered glass is provided on all four sides of the shield 2, a fixed seat 3 is installed on the upper end surface of the base 1, a tensile meter 4 is fixedly installed on one side of the upper end surface of the fixed seat 3, and a displacement seat 8 is movably installed on the other side of the upper end surface of the fixed seat 3, and a clamping device 5 is provided on the upper end surfaces of the tensile meter 4 and the displacement seat 8, and one side of the clamping device 5 is fixed to the detection end of the tensile meter 4. , the clamping device 5 on the other side is welded and fixed to the upper end surface of the displacement seat 8, a servo motor 9 is fixedly installed on one side of the fixed seat 3, a threaded transmission rod 12 is rotatably installed inside the fixed seat 3, and the output shaft of the servo motor 9 is fixed to the threaded transmission rod 12 through a coupling, and a movable block 13 is installed on the outside of the threaded transmission rod 12 to match its thread, and the upper end of the movable block 13 is fixed to the bottom of the displacement seat 8, and guide grooves 10 are provided at the front and rear of the fixed seat 3, and the plates at the front and rear ends of the displacement seat 8 are limited by sliding with the guide grooves 10.

[0020] When in use, the servo motor 9 is turned on, and its output shaft drives the threaded transmission rod 12 to rotate. Under the friction between its external thread and the internal screw hole of the movable block 13, the rotational motion is converted into linear motion, and the corresponding clamping device 5 is driven by the movable block 13 to move in a direction away from the tensile meter, thereby realizing tension on the cable. Since the bottom of the clamping device 5 on the other side is fixed to the detection end of the tensile meter 4, as the cable continues to move, the tensile meter 4 can accurately detect the value of the cable being stretched, thereby accurately measuring the stress condition of the cable during the stretching process.

[0021] See also Figure 2 , Figure 3 , Figure 4 and Figure 5 The clamping device 5 is composed of a sleeve 6 and an adjusting sleeve 7, and the sleeve 6 is connected to the adjusting sleeve 7 through a bearing. A through hole for the cable to pass through is provided inside the adjusting sleeve 7. A plurality of annularly distributed clamping plates 17 are provided in the internal through hole of the adjusting sleeve 7. Both ends of the sleeve 6 are provided with annularly distributed movable grooves 20. Both ends of the adjusting sleeve 7 are fixedly provided with chucks 19. One end of the chuck 19 is provided with a plurality of annularly distributed claws 16. The limiting thread on one end face of the claw 16 is meshed with the plane thread on the contact end face of the chuck 19, and the claw 16 is limited by sliding with the movable groove 20. The two ends of the clamping plate 17 are respectively fixed to the corresponding claws 16. An arc groove is reserved at the middle position of the sleeve 6. An adjusting plate 18 is welded and fixed at the position of the adjusting sleeve 7 corresponding to the arc groove of the sleeve 6. After the cable passes through the through hole in the center of the adjusting cylinder 7, the staff only needs to pull the adjusting plate 18 to drive the adjusting cylinder 7 to rotate through the adjusting plate 18, so as to realize the rotation of the chucks 19 at both ends of the adjusting cylinder 7. Since the limiting thread on one end face of the claw 16 is engaged with the flat thread on the contact end face of the chuck 19, the rotation of the flat thread drives the claw 16 to move along the direction of the movable groove at both ends of the adjusting cylinder, so that the corresponding clamping plates 17 continue to approach the direction of the cable until multiple clamping plates 17 exert pressure on the cable in multiple directions, ensuring the firmness of the cable at this position.

[0022] See also Figure 1 and Figure 2 , the front and rear of the upper end surface of the base 1 are provided with temperature regulating holes 11, and the interior of the base 1 is provided with a temperature regulating device 15, which is composed of two heat exchangers 14, a four-way valve, a throttling device and a compressor, wherein one heat exchanger 14 is installed in the cavity corresponding to the lower end of the temperature regulating hole 11. During cooling, the refrigerant first passes through the compressor to become a high-pressure gas, and then passes through the lower heat exchanger to condense and release heat to become a high-pressure liquid, and the high-pressure liquid passes through the throttling device to become a low-temperature and low-pressure liquid, and then passes through the upper heat exchanger to evaporate and absorb heat to become a low-temperature and low-pressure gas, absorbing heat from the air around the cavity, and transferring the cold to the shield through the temperature regulating hole; during heating, the flow direction of the refrigerant is changed by the four-way valve, and the refrigerant first passes through the compressor to become a high-pressure gas, and then passes through the upper heat exchanger to condense and release heat to become a high-pressure liquid, heating the air around the cavity, and transferring the heat to the shield through the temperature regulating hole, which helps to simulate the performance of the cable under different climatic conditions, thereby more comprehensively evaluating the quality and durability of the cable, and by accurately adjusting the ambient temperature, the test error caused by temperature changes can be reduced.

[0023] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A tensile testing device for cable production, comprising a base (1), characterized in that: A shield (2) is installed above the base (1), and the shield (2) is buckled with the base (1). A fixed seat (3) is installed on the upper end surface of the base (1). A tensile force meter (4) is fixedly installed on one side of the upper end surface of the fixed seat (3), and a displacement seat (8) is movably installed on the other side of the upper end surface of the fixed seat (3). The upper end surfaces of the tensile force meter (4) and the displacement seat (8) are both provided with a clamping device (5). The clamping device (5) is fixed to the detection end of the tensile force meter (4) on one side, and is welded and fixed to the upper end surface of the displacement seat (8) on the other side. The clamping device (5) is composed of a sleeve (6) and an adjusting sleeve (7), and the sleeve (6) and the adjusting sleeve (7) are connected by a bearing. A through hole is provided inside the adjusting sleeve (7) for the cable to pass through, and a plurality of annularly distributed clamping plates (17) are provided in the through hole inside the adjusting sleeve (7).

2. A tensile testing device for cable production according to claim 1, characterized in that: A servo motor (9) is fixedly mounted on one side of the fixed seat (3); a threaded transmission rod (12) is rotatably mounted inside the fixed seat (3); an output shaft of the servo motor (9) and the threaded transmission rod (12) are fixed via a coupling; a movable block (13) threadably matched with the threaded transmission rod (12) is mounted outside the threaded transmission rod (12); and an upper end of the movable block (13) is fixed to the bottom of the displacement seat (8).

3. A tensile testing device for cable production according to claim 1, characterized in that: Both ends of the sleeve (6) are provided with annularly distributed movable grooves (20), both ends of the adjustment cylinder (7) are fixedly provided with chucks (19), one end of the chuck (19) is provided with a plurality of annularly distributed clamping claws (16), the limiting threads on one end face of the clamping claws (16) are meshed with the plane threads on the contact end face of the chuck (19), and the clamping claws (16) and the movable grooves (20) are slidably limited, and the two ends of the clamping plate (17) are respectively fixed to the corresponding clamping claws (16).

4. A tensile testing device for cable production according to claim 3, characterized in that: An arc-shaped groove is reserved at the middle position of the sleeve (6), and an adjustment plate (18) is welded and fixed to the adjustment cylinder (7) at a position corresponding to the arc-shaped groove of the sleeve (6).

5. A tensile testing device for cable production according to claim 1, characterized in that: Temperature regulating holes (11) are arranged at the front and rear of the upper end surface of the base (1), and a temperature regulating device (15) is arranged inside the base (1). The temperature regulating device (15) is composed of two heat exchangers (14), a four-way valve, a throttling device and a compressor, wherein one of the heat exchangers (14) is installed in a cavity corresponding to the lower end of the temperature regulating hole (11).

6. A tensile testing device for cable production according to claim 1, characterized in that: The front and rear of the fixed seat (3) are both provided with guide grooves (10), and the plate bodies at the front and rear ends of the displacement seat (8) are slidably limited with the guide grooves (10).

7. A tensile testing device for cable production according to claim 1, characterized in that: The four sides of the protective cover (2) are all provided with transparent tempered glass.

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