A spring tensile strength testing device for spring processing

Abstract

The present invention relates to the field of spring detection technology, and discloses a spring tensile strength detection device for spring processing, comprising a detection platform, a fixed seat and a fixed rail are provided on the upper side of the detection platform, a dynamometer for detecting the tensile force data of the spring is provided on the rear side of the fixed seat, a detection seat is slidably mounted on the upper side of the fixed rail, and a positioning portion for fixing the spring is provided on the side of the fixed seat away from the dynamometer and on the detection seat. The spring tensile strength detection device for spring processing, the device pushes the first and second positioning plates to firmly clamp the spring through the rebound force of the elastic pad, avoiding the possibility of the spring falling off during the tensile force detection process, and at the same time pushes the positioning fixture to move in opposite directions based on the diameter of the spring, and utilizes the change of the positioning fixture to adjust and fix springs of different diameters, thereby solving the problem that the traditional spring tensile strength detection device is inconvenient to adjust and fix according to the size and diameter of the spring.

Description

Technical Field

[0001] The invention belongs to the technical field of spring detection, and in particular relates to a spring tensile strength detection device for spring processing. Background Art

[0002] A spring is a mechanical part that uses elasticity to work. Parts made of elastic materials deform under the action of external force and return to their original shape after the external force is removed. Springs are usually tested for their tensile strength before leaving the factory. Generally, the spring is fixed and then tested using a tensile testing device used for spring production.

[0003] At present, the existing tension detection device still has the following problems during use: the traditional spring tension detection device has poor security in the fixing method during use. When the spring is stretched too hard for testing, the two ends of the spring are not fixed firmly enough and are prone to collapse, resulting in low detection efficiency. In addition, the traditional spring tension detection device is inconvenient to adjust and fix according to the size and diameter of the spring, and has high usage limitations. In addition, the spring is prone to shaking during testing, which causes the measured value to change, thereby causing errors in the test results and reducing the accuracy of the spring test. Therefore, there are deficiencies and it cannot meet the manufacturer's testing and use requirements. Therefore, further improvement is necessary.

[0004] Therefore, in view of this, the existing structure and defects are studied and improved, and a spring tensile strength testing device for spring processing is provided, in order to achieve a more practical purpose. Summary of the Invention

[0005] In order to solve the above technical problems, the present invention provides a spring tensile strength detection device for spring processing, which is achieved by the following specific technical means:

[0006] A spring tensile strength testing device for spring processing, comprising a testing platform, a fixing seat and a fixing rail being provided on the upper side of the testing platform, a dynamometer for detecting the tensile force data of the spring being provided on the rear side of the fixing seat, a testing seat being slidably mounted on the upper side of the fixing rail, a positioning portion for fixing the spring being provided on a side of the fixing seat away from the dynamometer and on the testing seat, the positioning portion being used to fix and position the spring;

[0007] A plurality of positioning clamps are provided inside the positioning part, and the positioning clamps are evenly distributed along the center of the positioning part. The positioning clamps are used to fix and clamp the spring. A shock-absorbing assembly and an elastic soft sleeve are provided between the positioning clamp and the inner wall of the positioning part, and the shock-absorbing assembly is located between the positioning clamp and the elastic soft sleeve. The side of the elastic soft sleeve away from the shock-absorbing assembly is fixedly connected to the inner wall of the positioning part. The shock-absorbing assembly is used to absorb vibration of the spring, and the elastic soft sleeve is used to adjust the diameter of the spring.

[0008] Furthermore, two driving cylinders are provided on the upper side of the detection platform, and the two driving cylinders are located on the left and right sides of the dynamometer. The driving cylinders are used to drive the spring tension, and the outer end of the piston rod of the driving cylinder is fixedly connected to the detection seat by a connecting rod.

[0009] By adopting the above structure, the detection seat is driven by the cylinder to pull the spring to move synchronously, and the tension of the spring is tested. As the detection seat pulls the spring and the force gauge is used to detect the tension value of the stretched spring, the tension value of the spring can be tested.

[0010] Furthermore, a protective cover is provided on the upper side of the fixed rail, and the protective cover is used to protect the spring from collapse. A buffer shell is provided at the bottom of the protective cover. The protective cover is inserted into the buffer shell on the side opposite to the buffer shell and is fixedly connected to the buffer plate. A buffer airbag is provided inside the buffer shell to buffer the impact force, and the buffer airbags are located on the upper and lower sides of the buffer plate.

[0011] Wherein, the protective cover is made of transparent material.

[0012] By adopting the above structure, the provision of a protective cover can prevent the possibility of the spring collapsing, and the cooperation between the buffer plate and the buffer airbag can also effectively buffer and offset the force of the spring collision. By adding a transparent protective cover, the spring can be safely protected, thereby ensuring the safety of the inspection personnel and further improving the safety performance of the device.

[0013] Furthermore, a positioning assembly is provided inside the positioning fixture, and the positioning assembly includes a first positioning plate and a second positioning plate, and an elastic pad is connected between the side of the first positioning plate opposite to the second positioning plate and the inner wall of the positioning fixture;

[0014] The first and second positioning plates are used to fix and position the spring, and the elastic pad is used to adjust the diameter of the spring steel wire.

[0015] By adopting the above structure, the positioning plate 1 and the positioning plate 2 are pushed apart from each other through the outer side of the spring steel wire, and the elastic pad is squeezed at the same time. The rebound force of the elastic pad is used to push the positioning plate 1 and the positioning plate 2 to firmly clamp the spring, so that it is firmly fixed and the possibility of it falling off during the tensile test is avoided.

[0016] Furthermore, a groove is provided on the positioning fixture, and an elastic member is provided in the groove. A movable member is fixedly connected to one side of the elastic member. A plurality of positioning grooves are provided on the inner wall of the positioning portion, and the movable member is used in conjunction with the positioning grooves.

[0017] By adopting the above structure, the positioning fixture drives the movable part to move synchronously during the movement process, and the outer end of the movable part is constantly in contact with the positioning groove on the inner wall of the positioning part. This setting can effectively locate the position of the positioning fixture.

[0018] Furthermore, the shock absorbing assembly includes a mounting seat, a buffer air cushion, a connecting main rod, a fixing frame, a movable rod and a knocking piece;

[0019] One side of the mounting seat is fixedly connected to the elastic soft sleeve, and a buffer air cushion is provided on the side of the mounting seat away from the elastic soft sleeve. The side of the buffer air cushion away from the mounting seat is fixedly connected to a connecting main rod, and the side of the connecting main rod away from the buffer air cushion is fixedly connected to a positioning fixture. The buffer air cushion is used to absorb and reduce shock of spring shaking.

[0020] By adopting the above structure, the force of the spring when it shakes drives the positioning fixture to generate vibration synchronously, and the force of the positioning fixture when it shakes drives the connecting main rod to move synchronously, and at the same time squeezes the buffer air cushion. When the positioning fixture shakes, it drives the connecting main rod to generate a back and forth vibration frequency. The buffer air cushion can be used to initially relieve the shaking of the spring and the positioning fixture.

[0021] Furthermore, three fixing brackets are fixedly installed on one side of the mounting seat close to the buffer air cushion, and movable rods are movably installed on the three fixing brackets. The opposite ends of the three movable rods are movably connected to the connecting main rod, and the ends of the three movable rods away from the connecting main rod are equipped with knocking pieces;

[0022] The three knocking members are evenly distributed along the center of the connecting main rod, and the knocking members are used in conjunction with a positioning fixture.

[0023] By adopting the above structure, the positioning fixture is continuously struck by the striking piece, thereby generating a reaction force, which is used to offset the action force during shaking, thereby effectively reducing its vibration frequency and keeping it stable, thereby avoiding changes in the measured value due to shaking of the spring during detection, thereby improving the accuracy of spring detection.

[0024] Furthermore, a plurality of driving mechanisms are provided on the inner wall of the positioning portion, and the driving mechanisms are fixedly connected to clamping plates using telescopic ends, and the clamping plates are evenly distributed along the central axis of the positioning portion, and the clamping plates are used to clamp and fix the spring.

[0025] By adopting the above structure, the starting mechanism is started through external control, the telescopic end of the driving mechanism is used to push the clamping plate to move, and the clamping plate is used to further fix the spring, thereby strengthening the clamping and fixing effect of the spring.

[0026] Beneficial effects

[0027] Compared with the prior art, the present invention provides a spring tensile strength detection device for spring processing, which has the following beneficial effects:

[0028] 1. The spring tensile strength testing device for spring processing uses the rebound force of the elastic pad to push the positioning plate 1 and the positioning plate 2 to firmly clamp the spring, so that it is firmly fixed and prevents the possibility of it falling off during the tensile testing process. At the same time, the positioning fixture can be pushed to move in opposite directions based on the diameter of the spring. The change of the positioning fixture is used to adjust and fix springs of different diameters, which solves the problem that traditional spring tensile testing devices are inconvenient to adjust and fix according to the size and diameter of the spring.

[0029] 2. The spring tensile strength detection device used in spring processing, based on the fact that when the positioning fixture shakes, it will drive the connecting main rod to generate a back-and-forth vibration frequency, and use the buffer air cushion to initially relieve the spring and positioning fixture during shaking, and at the same time use the knocking piece to continuously knock the positioning fixture to generate a reaction force, and use the reaction force and the action force during shaking to offset each other, effectively reducing its vibration frequency and keeping it stable, thereby avoiding the change of the measured value due to shaking of the spring during detection, thereby improving the accuracy of spring detection.

[0030] 3. The spring tensile strength testing device used in spring processing can prevent the possibility of spring collapse through the setting of the protective cover, and can also effectively buffer and offset the force of the spring impact by utilizing the mutual cooperation between the buffer plate and the buffer airbag. By adding a transparent protective cover, the spring can be safely protected, thereby ensuring the safety of the testing personnel and further improving the safety performance of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0032] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention;

[0033] Figure 2 It is a top view of the present invention;

[0034] Figure 3 This is a schematic diagram of the installation structure of the detection base and the driving cylinder of the present invention;

[0035] Figure 4 This is a schematic diagram of the installation structure of the protective cover and the buffer shell of the present invention;

[0036] Figure 5 It is a schematic structural diagram of the positioning portion of the present invention;

[0037] Figure 6 This is a schematic diagram of the installation structure of the positioning part and the positioning fixture of the present invention;

[0038] Figure 7 It is a schematic diagram of the internal structure of the positioning part of the present invention;

[0039] Figure 8 This is a schematic diagram of the installation structure of the positioning part and the clamping plate of the present invention;

[0040] Figure 9 This invention Figure 8 A magnified schematic diagram of part A;

[0041] Figure 10 This is a schematic diagram of the installation structure of the positioning fixture and the elastic soft sleeve of the present invention;

[0042] Figure 11 This is a schematic diagram of the installation structure of the positioning fixture and the shock absorbing assembly of the present invention;

[0043] Figure 12 This is a schematic diagram of the installation structure of the positioning fixture and positioning assembly of the present invention;

[0044] Figure 13 It is a schematic structural diagram of the shockproof component of the present invention.

[0045] In the figure: 1. Testing platform; 2. Fixed seat; 3. Fixed rail; 31. Testing seat; 4. Force gauge; 5. Positioning part; 6. Driving cylinder; 61. Connecting rod; 7. Protective cover; 71. Buffer plate; 8. Buffer shell; 81. Buffer airbag; 9. Positioning fixture; 91. Elastic pad; 10. Positioning assembly; 101. Positioning plate 1; 102. Positioning plate 2; 11. Elastic part; 111. Movable part; 12. Shock-absorbing assembly; 121. Mounting seat; 122. Buffer air cushion; 123. Connecting main rod; 124. Fixed frame; 125. Movable rod; 126. Striking part; 13. Elastic soft cover; 14. Positioning groove; 15. Driving mechanism; 16. Clamping plate. DETAILED DESCRIPTION

[0046] The following will clearly and completely describe the technical solutions in the embodiments of the present invention 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, and it should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. For the convenience of description, if the words "up", "down", "left" and "right" appear in the following text, they only indicate that they are consistent with the up, down, left and right directions of the drawings themselves, and do not limit the structure. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0047] See also Figures 1 to 13 A spring tensile strength testing device for spring processing includes a testing platform 1, a fixed seat 2 and a fixed rail 3 are provided on the upper side of the testing platform 1, a dynamometer 4 for detecting the tension data of the spring is provided on the rear side of the fixed seat 2, a testing seat 31 is slidably installed on the upper side of the fixed rail 3, a positioning portion 5 for fixing the spring is provided on the side of the fixed seat 2 away from the dynamometer 4 and on the testing seat 31, and the positioning portion 5 is used to fix and position the spring; a plurality of positioning fixtures 9 are provided inside the positioning portion 5, and the positioning fixtures 9 are evenly distributed along the center of the positioning portion 5, and the positioning fixtures 9 are used to fix and clamp the spring, and a positioning fixture 9 is provided between the positioning fixture 9 and the inner wall of the positioning portion 5. A shock-absorbing component 12 and an elastic soft sleeve 13 are provided, and the shock-absorbing component 12 is located between the positioning fixture 9 and the elastic soft sleeve 13. The side of the elastic soft sleeve 13 away from the shock-absorbing component 12 is fixedly connected to the inner wall of the positioning part 5. The shock-absorbing component 12 is used to reduce the vibration of the spring, and the elastic soft sleeve 13 is used to adjust the diameter of the spring. The spring is firmly clamped by the positioning plate 101 and the positioning plate 2 102 in the positioning fixture 9 to prevent it from falling off during the tensile test. At the same time, the positioning fixture 9 can be pushed to move back and forth based on the diameter of the spring, and the changes in the positioning fixture 9 can be used to adjust and fix springs of different diameters.

[0048] A positioning assembly 10 is provided inside the positioning fixture 9, and the positioning assembly 10 includes a positioning plate 101 and a positioning plate 2 102. An elastic pad 91 is connected between the side of the positioning plate 101 and the positioning plate 2 102 opposite to the inner wall of the positioning fixture 9; the positioning plate 101 and the positioning plate 2 102 are used to fix and position the spring, and the elastic pad 91 is used to adjust the diameter of the spring steel wire; the positioning plate 101 and the positioning plate 2 102 are pushed apart from each other by the outside of the spring steel wire, and the elastic pad 91 is squeezed at the same time, and the rebound force of the elastic pad 91 is used to push the positioning plate 101 and the positioning plate 2 102 to firmly clamp the spring, so that it is firmly fixed and avoids the possibility of it falling off during the tensile test.

[0049] The shock absorbing assembly 12 includes a mounting seat 121, a buffer air cushion 122, a connecting main rod 123, a fixing frame 124, a movable rod 125 and a knocking piece 126; one side of the mounting seat 121 is fixedly connected to the elastic soft cover 13, and a buffer air cushion 122 is provided on the side of the mounting seat 121 away from the elastic soft cover 13, and the side of the buffer air cushion 122 away from the mounting seat 121 is fixedly connected to the connecting main rod 123, and the side of the connecting main rod 123 away from the buffer air cushion 122 is fixedly connected to the positioning fixture 9, and the buffer air cushion 122 is used to absorb and shock-absorbing the shaking of the spring; based on the force when the spring shakes, the positioning fixture 9 is driven to synchronously generate a vibration sense, and the force when the positioning fixture 9 shakes is used to drive the connecting main rod 123 to move synchronously, and at the same time squeeze the buffer air cushion 122, based on the fact that when the positioning fixture 9 shakes, it will drive the connecting main rod 123 to generate a back and forth vibration frequency, and the buffer air cushion 122 can be used to initially alleviate the shaking of the spring and the positioning fixture 9.

[0050] Three fixing frames 124 are fixedly installed on one side of the mounting seat 121 close to the buffer air cushion 122, and movable rods 125 are movably installed on the three fixing frames 124. The opposite ends of the three movable rods 125 are movably connected to the connecting main rod 123, and the ends of the three movable rods 125 away from the connecting main rod 123 are installed with knocking pieces 126; among them, the three knocking pieces 126 are evenly distributed along the center of the connecting main rod 123, and the knocking pieces 126 are used in conjunction with the positioning fixture 9; during the movement of the connecting main rod 123, the movable rod 125 is used to drive the knocking piece 126 to move in the opposite direction, and the knocking piece 126 is used to continuously knock the positioning fixture 9, thereby generating a reaction force, which is used to offset the action force during shaking, effectively reducing its vibration frequency and keeping it stable, thereby improving the accuracy of spring detection.

[0051] Several driving mechanisms 15 are provided on the inner wall of the positioning portion 5. The driving mechanism 15 is fixedly connected to a clamping plate 16 by a telescopic end, and the clamping plates 16 are evenly distributed along the central axis of the positioning portion 5. The clamping plates 16 are used to clamp and fix the spring; the starting mechanism is started by external control, and the telescopic end of the driving mechanism 15 is used to push the clamping plate 16 to move, and the spring is further fixed by the clamping plate 16, thereby strengthening the clamping and fixing effect of the spring.

[0052] A groove is provided on the positioning fixture 9, and an elastic member 11 is provided in the groove. A movable member 111 is fixedly connected to one side of the elastic member 11. A plurality of positioning grooves 14 are provided on the inner wall of the positioning portion 5. The movable member 111 is used in conjunction with the positioning groove 14. The positioning fixture 9 drives the movable member 111 to move synchronously during the movement, and makes the outer end of the movable member 111 constantly contact with the positioning groove 14 on the inner wall of the positioning portion 5. Through this arrangement, the position of the positioning fixture 9 can be effectively positioned.

[0053] Two driving cylinders 6 are provided on the upper side of the detection platform 1, and the two driving cylinders 6 are located on the left and right sides of the dynamometer 4. The driving cylinder 6 is used to drive the spring tension, and the outer end of the piston rod of the driving cylinder 6 is fixedly connected to the detection seat 31 by the connecting rod 61; by starting the driving cylinder 6, the piston rod is used to drive the connecting rod 61 and the detection seat 31 to move, prompting the detection seat 31 to pull the spring to move synchronously, and the tension of the spring is tested. As the detection seat 31 pulls the spring and uses the dynamometer 4 to detect the tension value of the stretched spring, the tension value of the spring is detected, thereby realizing the detection of the tension value of the spring.

[0054] A protective cover 7 is provided on the upper side of the fixed rail 3. The protective cover 7 is used to protect the spring from bombing. A buffer shell 8 is provided at the bottom of the protective cover 7. The protective cover 7 is inserted into the interior of the buffer shell 8 on the side opposite to the buffer shell 8 and is fixedly connected to the buffer plate 71. A buffer air bag 81 is provided inside the buffer shell 8 for buffering the impact force, and the buffer air bag 81 is located on the upper and lower sides of the buffer plate 71; wherein, the protective cover 7 is made of transparent material; the setting of the protective cover 7 can prevent the possibility of the spring from bombing, and the mutual cooperation between the buffer plate 71 and the buffer air bag 81 can also effectively buffer and offset the force of the spring collision. By adding a transparent protective cover 7, the spring can be safely protected, thereby ensuring the safety of the inspection personnel.

[0055] The specific usage and function of this embodiment are as follows:

[0056] Working principle: A spring is a mechanical part that uses elasticity to work. Parts made of elastic materials deform under the action of external force and return to their original shape after the external force is removed. Springs are usually tested for tensile strength before leaving the factory. When in use, one end of the spring to be tested is inserted into the interior of the positioning part 5, and the spring is inserted into the interior along the positioning fixture 9, so that the spring steel wire is located between the positioning plate 101 and the positioning plate 2 102, and the positioning plate 101 and the positioning plate 2 102 are pushed apart from each other through the outside of the spring steel wire, and the elastic pad 91 is squeezed at the same time, and the rebound force of the elastic pad 91 is used to push the positioning plate 101 and the positioning plate 2 102 to clamp the spring firmly, so that it is fixed firmly. , to avoid the possibility of it falling off during the tension test; and because the springs have different diameters, when the spring diameter is large, in the process of clamping it with the positioning fixture 9, the positioning fixture 9 is pushed to move back based on the diameter of the spring, and the shock absorbing component 12 is driven to squeeze the elastic soft cover 13, and the change of the positioning fixture 9 is used to fix and clamp springs of different diameters. This setting makes it easy to adjust and fix according to the size and diameter of the spring, and at the same time, the starting mechanism is started by external control, and the telescopic end of the driving mechanism 15 is used to push the clamping plate 16 to move, and the spring is further fixed by the clamping plate 16, thereby strengthening the clamping and fixing effect of the spring;

[0057] After both ends of the spring are fixed, the driving cylinder 6 is started, and the connecting rod 61 and the detection seat 31 are driven by the piston rod to move, so that the detection seat 31 pulls the spring to move synchronously, and the tension of the spring is tested. As the detection seat 31 pulls the spring and the force gauge 4 is used to test the tension value of the stretched spring, the tension value of the spring is tested.

[0058] In addition, the spring may shake during the stretching process. The force of the spring shaking drives the positioning fixture 9 to generate a vibration synchronously. The force of the positioning fixture 9 shaking drives the connecting main rod 123 to move synchronously, and at the same time squeezes the buffer air cushion 122. When the positioning fixture 9 shakes, it drives the connecting main rod 123 to generate a back and forth vibration frequency. The buffer air cushion 122 can be used to initially alleviate the spring and the positioning fixture 9 during the shaking. In the process of movement of the connecting main rod 123, the movable rod 125 drives the knocking piece 126 to move in the opposite direction, and the knocking piece 126 is used to continuously knock the positioning fixture 9, thereby generating a reaction force. The reaction force and the force during shaking are used to offset each other, effectively reducing its vibration frequency and keeping it stable, thereby avoiding the change of the measured value due to shaking of the spring during detection, thereby improving the accuracy of spring detection.

[0059] Moreover, during the stretching process of the spring, there are uncontrollable factors in the external environment. The setting of the protective cover 7 can prevent the possibility of the spring from collapsing, and the cooperation between the buffer plate 71 and the buffer airbag 81 can also effectively buffer and offset the force of the spring collision. By adding a transparent protective cover 7, the spring can be safely protected, thereby ensuring the safety of the inspection personnel and further improving the safety performance of the device.

[0060] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0061] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations are possible based on the content of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A spring tensile strength testing device for spring processing, comprising a testing platform (1), characterized in that: A fixing seat (2) and a fixing rail (3) are provided on the upper side of the detection platform (1); a dynamometer (4) for detecting the tension data of the spring is provided on the rear side of the fixing seat (2); a detection seat (31) is slidably mounted on the upper side of the fixing rail (3); a positioning portion (5) for fixing the spring is provided on the side of the fixing seat (2) away from the dynamometer (4) and on the detection seat (31); the positioning portion (5) is used to fix and position the spring; A plurality of positioning fixtures (9) are provided inside the positioning portion (5), and the positioning fixtures (9) are evenly distributed along the center of the positioning portion (5). The positioning fixtures (9) are used to fix and clamp the spring. A shock-absorbing component (12) and an elastic soft sleeve (13) are provided between the positioning fixture (9) and the inner wall of the positioning portion (5). The shock-absorbing component (12) is located between the positioning fixture (9) and the elastic soft sleeve (13). The side of the elastic soft sleeve (13) away from the shock-absorbing component (12) is fixedly connected to the inner wall of the positioning portion (5). The shock-absorbing component (12) is used to reduce vibration of the spring, and the elastic soft sleeve (13) is used to adjust the diameter of the spring. The positioning fixture (9) is provided with a groove, and an elastic member (11) is provided in the groove. A movable member (111) is fixedly connected to one side of the elastic member (11). A plurality of positioning grooves (14) are provided on the inner wall of the positioning portion (5). The movable member (111) is used in conjunction with the positioning grooves (14). The shock absorbing assembly (12) comprises a mounting seat (121), a buffering air cushion (122), a connecting main rod (123), a fixing frame (124), a movable rod (125) and a knocking member (126); One side of the mounting seat (121) is fixedly connected to the elastic soft sleeve (13); a buffer air cushion (122) is provided on the side of the mounting seat (121) away from the elastic soft sleeve (13); a side of the buffer air cushion (122) away from the mounting seat (121) is fixedly connected to a connecting main rod (123); a side of the connecting main rod (123) away from the buffer air cushion (122) is fixedly connected to a positioning fixture (9); and the buffer air cushion (122) is used to absorb and reduce shock when the spring shakes; Three fixing frames (124) are fixedly mounted on one side of the mounting seat (121) close to the buffer air cushion (122), and movable rods (125) are movably mounted on the three fixing frames (124). Opposite ends of the three movable rods (125) are movably connected to the connecting main rod (123), and knocking members (126) are mounted on the ends of the three movable rods (125) away from the connecting main rod (123); The three knocking members (126) are evenly distributed along the center of the connecting main rod (123), and the knocking members (126) are used in conjunction with the positioning fixture (9).

2. A spring tensile strength testing device for spring processing according to claim 1, characterized in that: Two driving cylinders (6) are provided on the upper side of the detection platform (1), and the two driving cylinders (6) are located on the left and right sides of the dynamometer (4). The driving cylinders (6) are used to drive the spring tension, and the outer ends of the piston rods of the driving cylinders (6) are fixedly connected to the detection seat (31) by means of a connecting rod (61).

3. The spring tensile strength detection device for spring processing according to claim 1, characterized in that: A protective sleeve (7) is provided on the upper side of the fixed rail (3), and the protective sleeve (7) is used to protect the spring from collapse. A buffer shell (8) is provided at the bottom of the protective sleeve (7). The protective sleeve (7) is inserted into the interior of the buffer shell (8) on the side opposite to the buffer shell (8) and is fixedly connected to the buffer plate (71). A buffer airbag (81) for buffering impact force is provided inside the buffer shell (8), and the buffer airbag (81) is located on the upper and lower sides of the buffer plate (71); Wherein, the protective cover (7) is made of a transparent material.

4. A spring tensile strength testing device for spring processing according to claim 1, characterized in that: A positioning assembly (10) is provided inside the positioning fixture (9), and the positioning assembly (10) includes a first positioning plate (101) and a second positioning plate (102), and an elastic pad (91) is connected between the side of the first positioning plate (101) and the second positioning plate (102) opposite to each other and the inner wall of the positioning fixture (9); The positioning plate 1 (101) and the positioning plate 2 (102) are used to fix and position the spring, and the elastic pad (91) is used to adjust the diameter of the spring steel wire.

5. The spring tensile strength testing device for spring processing according to claim 1, characterized in that: A plurality of driving mechanisms (15) are provided on the inner wall of the positioning portion (5). The driving mechanisms (15) are fixedly connected to clamping plates (16) at their telescopic ends. The clamping plates (16) are evenly distributed along the central axis of the positioning portion (5). The clamping plates (16) are used to clamp and fix the spring.

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