A kind of clamping spring piece bending resilience performance detection equipment

Abstract

The application discloses a kind of clamping spring piece bending resilience performance detection equipment, it is related to bending resilience detection technical field.The present application includes rack, the inner top of the rack is fixedly installed with two groups of support platform, the top of the rack is fixedly installed with large driving hydraulic cylinder and small driving hydraulic cylinder, the bottom of the telescopic end of large driving hydraulic cylinder is provided with main rod, adjusting outer thread is formed in the outside of main rod, reference nut is threadedly connected to the outside of adjusting outer thread, laser ranging sensor is fixedly installed at the bottom of reference nut.The present application is provided by the setting of two driving hydraulic cylinders, large driving hydraulic cylinder provides main load, pressure rod gives the downward pressure in the middle of clamping spring piece, small driving hydraulic cylinder provides auxiliary load, small driving hydraulic cylinder drives ranging frame to rise, ranging frame gives sleeve insertion assembly upward driving force by connecting rod, sleeve insertion assembly gives clamping spring piece two ends inward bending force, so that clamping spring piece three-point bending, improve test efficiency.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of bending and springback detection, and particularly relates to a spring clip bending and springback performance detection device. BACKGROUND

[0002] The automobile brake spring clip (also known as brake ring clip) is a key elastic element in the brake system and is widely used for fixing and connecting between the brake disc and the brake caliper. The bending and springback performance of the brake spring clip refers to the deformation ability of the spring clip under external force and the ability to return to the initial state, which is the basis for the long-term stable operation of the brake spring clip. If the springback performance of the spring clip is insufficient, the brake caliper may not be fully reset, and even brake jam may occur, which may directly affect the normal operation of the brake system and threaten the safety of driving.

[0003] The related art can refer to the Chinese invention patent with the publication number CN118243529B, which discloses a metal plate bending and springback performance detection device, which comprises a rack and a controller. The rack is provided with a sliding rail, and the sliding rail is provided with a sliding frame. The sliding frame is provided with a rack and a pushing frame. One end of the sliding rail is provided with a feeding frame, and the other end is provided with a collecting frame. A rotating wheel is arranged in the rack. The rotating wheel is provided with a push rod. The free end of the push rod is provided with a pressure rod and a pressure sensor. The pressure rod is located above the sliding rail. A driving mechanism is also arranged in the rack. The output end of the driving mechanism is connected with the rotating wheel and the sliding frame. Scanning devices are arranged on both sides of the pressure rod. The scanning devices, the pressure sensor and the driving mechanism are electrically connected with the controller.

[0004] The patent and the prior art have the following technical problems in the actual use process:

[0005] The prior art can only detect the bending and springback performance of the whole spring clip. However, in the actual detection process, there are differences between the overall bending and springback performance and the local springback performance of the brake spring clip. Different parts of the brake spring clip (such as the center and the edge of the brake spring clip) may have different deformation and springback performance when subjected to external force. Therefore, simply detecting the overall bending and springback performance of the spring clip cannot completely reflect the local springback of the brake spring clip. At the same time, the structure of the key springback part of the brake spring clip is complex and the components are small, which makes the detection difficult. The current detection equipment needs to test the whole and local parts of the brake spring clip multiple times, and cannot detect the whole and local parts of the brake spring clip synchronously, so the test efficiency is low. SUMMARY

[0006] The purpose of the present application is to solve the above problems. The present application provides a spring clip bending and springback performance detection device.

[0007] The application specifically adopts the following technical scheme to achieve the above-mentioned purpose.

[0008] A clamping spring piece bending and rebound performance detection equipment, including frame, the inner bottom of the frame is fixedly installed with two groups of support table, the top of the frame is fixedly installed with large driving hydraulic cylinder and small driving hydraulic cylinder, the bottom of the telescopic end of the large driving hydraulic cylinder is provided with main rod, the outer side of the main rod is provided with adjusting external thread, the outer side of the adjusting external thread is threadedly connected with reference nut, the bottom of the reference nut is fixedly installed with laser ranging sensor, the bottom of the main rod is rotatably installed with pressure rod.

[0009] The bottom of the telescopic end of the small driving hydraulic cylinder is provided with auxiliary rod, the bottom of the auxiliary rod is provided with bottom block, the auxiliary rod is sleeved with ranging frame, the ranging frame is sleeved on the main rod, the ranging frame is above the reference nut, the laser ranging sensor is used for measuring the distance between the ranging frame and the reference nut, the two sides of the ranging frame are both hinged with connecting rod, the bottom end of the connecting rod is installed with swingable sleeve insertion assembly, the clamping spring piece can be inserted in the sleeve insertion assembly, the ranging frame and the inner top of the frame are provided with hanging spring, the elastic force of the hanging spring is the same as the gravity of the ranging frame, the connecting rod and the sleeve insertion assembly.

[0010] Further, the sleeve insertion assembly comprises a swing frame hinged at the bottom end of the connecting rod, one side of the swing frame close to the ranging frame is hinged with a plug, the inside of the plug is provided with a slot, the clamping spring piece can be inserted in the slot, the top of the plug is provided with a sliding frame, the inside of the sliding frame is slidably connected with a limiting sliding block, the distance between the rebound part of the clamping spring piece and the hinged part between the swing frame and the connecting rod is greater than the distance between the rebound part of the clamping spring piece and the hinged part between the swing frame and the plug.

[0011] Further, the inside of the swing frame is hinged with a ranging plate, the other end of the ranging plate is hinged with a hinge block, the hinge block is hinged at the bottom end of the connecting rod, the inside of the swing frame and the hinge block is both provided with pin hole, the inside of the pin hole is inserted with pin.

[0012] Further, the opening of the slot is provided with flared.

[0013] Further, the pressure rod is in the shape of I, and the length of the pressure rod is greater than the length of the end of the plug close to the pressure rod.

[0014] Further, the top of the support table is provided with positioning groove, the positioning groove limits the front end of the clamping spring piece.

[0015] Further, the inner top of the frame is fixedly installed with lifting screw, the bottom end of the lifting screw is threadedly connected with lifting nut, the bottom end of the lifting nut is rotatably installed with connecting block, the hanging spring is fixedly connected at the bottom of the connecting block.

[0016] Further, the outer side of the main rod is provided with a locking external thread, which is located above the pressure rod, and a locking nut is threadedly connected to the outer side of the locking external thread, which is located below the adjusting external thread.

[0017] The beneficial effects of the present application are as follows:

[0018] 1. The present application provides main load by large driving hydraulic cylinder and downward pressure on the middle of the clamping spring piece through the pressure rod, and provides auxiliary load by small driving hydraulic cylinder, which drives the range frame to rise, and the range frame drives the sleeve insertion assembly upward through the connecting rod, and the sleeve insertion assembly bends the two ends of the clamping spring piece inward, so that the clamping spring piece is bent by three-point force, thereby improving the test efficiency.

[0019] 2. The present application slowly removes the load by the large driving hydraulic cylinder, so that the clamping spring piece can rebound more stably, and the small driving hydraulic cylinder quickly removes the load, so that the range frame is only supported by the two ends of the clamping spring piece, and the distance between the range frame and the reference nut is measured, so that the rebound angle of the clamping spring piece can be accurately fed back, and the test is simple and the test result is accurate.

[0020] 3. The present application presses the insertion part of the sleeve insertion assembly by the pressure rod, and then the small driving hydraulic cylinder provides partial test load, which drives the range frame to rise, and the range frame drives the sleeve insertion assembly upward through the connecting rod, and the swing part of the sleeve insertion assembly is pressed on the rebound part of the clamping spring piece, so as to realize the bending and rebound performance test of the rebound part, and the test is comprehensive and the test efficiency is high. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 is a structural schematic view of the clamping spring piece in the present application;

[0022] Figure 2 is a schematic view of the three-dimensional structure of the present application;

[0023] Figure 3 is an explosion schematic view of the present application;

[0024] Figure 4 is a schematic view of the installation position of the pressure rod in the present application;

[0025] Figure 5 is a structural schematic view of the sleeve insertion assembly in the present application;

[0026] Figure 6 is an explosion schematic view of Figure 5 .

[0027] Mark: 1, rack; 11, lifting screw; 12, lifting nut; 13, connecting block; 14, hanging spring; 2, support table; 21, positioning groove; 3, large driving hydraulic cylinder; 31, adjusting external thread; 32, reference nut; 33, laser ranging sensor; 34, pressure rod; 35, locking external thread; 36, locking nut; 4, small driving hydraulic cylinder; 41, bottom block; 5, ranging frame; 6, connecting rod; 7, sleeve insertion assembly; 71, plug; 72, insertion slot; 73, sliding frame; 74, limit sliding block; 75, swing frame; 76, ranging board; 77, hinged block; 78, bolt; 101, spring clip body; 102, rebound part. DETAILED DESCRIPTION

[0028] To make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application.

[0029] As Figure 1 shown is a spring clip to be detected according to the present application, comprising a spring clip body 101 and two rebound parts 102, the outer contour of the spring clip body 101 is roughly U-shaped, and the two rebound parts 102 are arranged on both sides of the end of the spring clip body 101 away from the U-shaped opening, and details are not described again.

[0030] EMBODIMENT

[0031] As Figures 1-6 shown is a spring clip bending and rebound performance detection equipment, comprising a rack 1, two groups of support tables 2 are fixedly installed on the inner bottom of the rack 1, a large driving hydraulic cylinder 3 and a small driving hydraulic cylinder 4 are fixedly installed on the top of the rack 1, a main rod is fixedly connected to the bottom of the telescopic end of the large driving hydraulic cylinder 3, an adjusting external thread 31 is formed on the outer side of the main rod, a reference nut 32 is threadedly connected to the outer side of the adjusting external thread 31, a laser ranging sensor 33 is fixedly installed on the bottom of the reference nut 32, and a pressure rod 34 is rotatably installed on the bottom of the main rod.

[0032] A vice rod is fixedly connected to the bottom of the telescopic end of the small driving hydraulic cylinder 4, a bottom block 41 is installed on the bottom of the vice rod, a ranging frame 5 is sleeved on the vice rod, the ranging frame 5 is sleeved on the main rod, the ranging frame 5 is located above the reference nut 32, the laser ranging sensor 33 is used for measuring the distance between the ranging frame 5 and the reference nut 32, a connecting rod 6 is hingedly connected to both sides of the main rod, a sleeve insertion assembly 7 capable of swinging is installed at the bottom end of the connecting rod 6, a spring clip can be inserted into the sleeve insertion assembly 7, a hanging spring 14 is arranged between the ranging frame 5 and the inner top of the rack 1, and the elastic force of the hanging spring 14 is the same as the gravity of the ranging frame 5, the connecting rod 6 and the sleeve insertion assembly 7.

[0033] The socket assembly 7 includes a swing frame 75 hinged to the bottom end of the connecting rod 6. A plug 71 is hinged to the side of the swing frame 75 near the rangefinder 5. A slot 72 is provided inside the plug 71, and a retaining spring can be inserted into the slot 72. A sliding frame 73 is fixedly installed on the top of the plug 71. A limit slider 74 is slidably connected inside the sliding frame 73. The distance from the hinge point of the swing frame 75 and the connecting rod 6 to the spring-loaded part 102 is greater than the distance from the hinge point of the swing frame 75 and the plug 71 to the spring-loaded part 102.

[0034] The swing frame 75 is hinged to a distance measuring plate 76, and the other end of the distance measuring plate 76 is hinged to a hinge block 77. The hinge block 77 is hinged to the bottom end of the connecting rod 6. The swing frame 75 and the hinge block 77 are both provided with pin holes, and a pin 78 is inserted into the pin hole.

[0035] The detection steps of this invention are as follows:

[0036] Clamping: Figure 1 The retaining spring is placed on two sets of support platforms 2, and then two plugs 71 are respectively inserted into the two sides of the retaining spring body 101, so that the spring return part 102 is located in the swing frame 75 and above the distance measuring plate 76, thus completing the clamping.

[0037] Overall bending and springback detection: Rotate the pressure rod 34 to set it longitudinally, and slide the limit slider 74 towards the swing frame 75, so that the limit slider 74 blocks the swing frame 75. At this time, there is no swing between the swing frame 75 and the plug 71. Then control the large drive hydraulic cylinder 3 to run. The large drive hydraulic cylinder 3 drives the main rod to descend, and the main rod drives the pressure rod 34 to descend. When the pressure rod 34 presses against the middle of the snap ring body 101, the large drive hydraulic cylinder 3 stops running. Then rotate the reference nut 32 so that the reference nut 32 presses against the bottom of the distance measuring frame 5 to complete the reference adjustment; then control The large driving hydraulic cylinder 3 and the small driving hydraulic cylinder 4 operate simultaneously. The large driving hydraulic cylinder 3 applies downward pressure to the snap ring body 101 through the pressure rod 34, applying the main load. Meanwhile, the small driving hydraulic cylinder 4 drives the auxiliary rod to rise. The auxiliary rod drives the measuring frame 5 to move upward through the bottom support block 41. The measuring frame 5 drives the connecting rod 6 to rise. The connecting rod 6 provides the overall driving force to the socket assembly 7. The socket assembly 7 provides the snap ring body 101 with a bending driving force from both sides to the middle through the plug 71. The snap ring body 101 is driven by three points of bending, which can complete the bending of the snap ring body 101 more efficiently.

[0038] When the clamping spring body 101 is bent by 10°, the small driving hydraulic cylinder 4 quickly removes the load, the auxiliary rod quickly descends, at this time the range frame 5 is only supported by the clamping spring piece, the large driving hydraulic cylinder 3 slowly removes the load, and the clamping spring piece is stably reset, when the pressing rod 34 rises to the reference adjusting position, the pressing rod 34 stops rising, at this time if the clamping spring piece rebound amount is not up to the standard, the two ends of the clamping spring body 101 will be bent upwards, the range frame 5 is pushed up through the sleeve insertion assembly 7 and the connecting rod 6, a distance is formed between the range frame 5 and the reference nut 32, the distance is detected through the laser ranging sensor 33, and then the corresponding bending angle is calculated according to the trigonometric function mathematical model.

[0039] After the overall bending and rebound detection, the pressing rod 34 is rotated, the pressing rod 34 is distributed horizontally, then the large driving hydraulic cylinder 3 is controlled to operate, the large driving hydraulic cylinder 3 drives the pressing rod 34 to descend, the pressing rod 34 is pressed on the plug 71, the two ends of the clamping spring piece are flattened, the overall detection does not affect the local detection, then the limiting sliding block 74 is pushed to slide, the limiting sliding block 74 is away from the swing frame 75, at this time the swing frame 75 can swing relative to the plug 71, the reference nut 32 is rotated to be tightly attached to the bottom of the range frame 5, and the reference positioning is completed.

[0040] Then the small driving hydraulic cylinder 4 is controlled to operate simultaneously, the small driving hydraulic cylinder 4 drives the auxiliary rod to rise, the auxiliary rod drives the range frame 5 to move upwards through the bottom supporting block 41, the range frame 5 drives the connecting rod 6 to rise, the connecting rod 6 drives the swing frame 75 to swing upwards through the hinged block 77, the swing frame 75 bends the rebound part 102 upwards, because the distance from the hinged place of the swing frame 75 and the connecting rod 6 to the clamping spring rebound part 102 is greater than the distance from the hinged place of the swing frame 75 and the plug 71 to the clamping spring rebound part 102, therefore the labor-saving effect can be achieved, the small driving hydraulic cylinder 4 can stably press and bend the rebound part 102, after a certain angle is pressed and bent, the small driving hydraulic cylinder 4 slowly removes the load until descending to the reference position, the swing frame 75 swings to be horizontal with the plug 71, finally the limiting sliding block 74 is pushed to lock the swing frame 75, the bolt 78 is pulled out, the hinged block 77 is separated from the swing frame 75, then the range frame 5 is pushed upwards by hand, the range frame 5 drives the connecting rod 6 to rise, the connecting rod 6 drives the hinged block 77 to rise, the hinged block 77 drives the measuring plate 76 to swing upwards, when the measuring plate 76 swings to the rebound part 102, at this time a distance is formed between the range frame 5 and the reference nut 32, the distance is detected through the laser ranging sensor 33, and then the corresponding bending angle is calculated according to the trigonometric function mathematical model.

[0041] Therefore, the clamping spring body 101 and the rebound part 102 can be detected for bending and rebound performance at one time, the detection is comprehensive, all data detection can be completed only through one laser ranging sensor 33, the detection system is simple, and the measurement is reliable.

[0042] As an embodiment of the present application, the opening of the slot 72 is provided with a flared structure, through which the plug 71 is inserted into the spring clip.

[0043] As an embodiment of the present application, the pressing rod 34 is in the shape of an I-beam, and the length of the pressing rod 34 is greater than the length of the end of the plug close to the pressing rod 34, through which the pressing rod 34 can stably press the plug 71.

[0044] As an embodiment of the present application, the top of the support table 2 is provided with a positioning slot 21, which limits the front end of the spring clip, through which the spring clip can be positioned more conveniently.

[0045] Further, the inner top of the rack 1 is fixedly provided with a lifting screw 11, the bottom end of the lifting screw 11 is threadedly connected with a lifting nut 12, the bottom end of the lifting nut 12 is rotatably provided with a connecting block 13, and a hanging spring 14 is fixedly connected to the bottom of the connecting block 13.

[0046] Since the gravity of the ranging frame 5, the connecting rod 6 and the sleeve plug assembly 7 is applied to the spring clip after the load is removed, the gravity is too large to flatten the spring clip and affect the measurement, through the arrangement of the hanging spring 14, the gravity of the ranging frame 5, the connecting rod 6 and the sleeve plug assembly 7 can be balanced, the influence of the gravity on the measurement result can be eliminated, and the measurement accuracy can be improved.

[0047] Since the reference position of the ranging frame 5 is different due to the different widths of the spring clip, in order to ensure that the hanging spring 14 is not compressed or stretched, according to the reference position of the ranging frame 5, the lifting nut 12 is rotated, the lifting nut 12 is lifted under the action of the lifting screw 11, the connecting block 13 is lifted by the lifting nut 12, the distance between the connecting block 13 and the ranging frame 5 is changed, the hanging spring 14 is kept at a stable length and is not compressed or stretched, and the gravity balance is more stable.

[0048] As an embodiment of the present application, the outer side of the main rod is provided with a locking external thread 35, the locking external thread 35 is located above the pressing rod 34, the outer side of the locking external thread 35 is threadedly connected with a locking nut 36, and the locking nut 36 is located below the adjusting external thread 31.

[0049] After the angle adjustment of the pressing rod 34 is completed, the locking nut 36 is rotated downward, the locking nut 36 is tightly pressed on the pressing rod 34, the pressing rod 34 is locked through the friction force, and the angle change of the pressing rod 34 in the detection process is prevented, and the detection stability is high.

[0050] The foregoing description of the disclosed embodiments enables a person skilled in the art to make or use the application. Modifications of these embodiments will occur to persons of skill in the art, and, while certain modifications are discussed, it is desired to be protected in accordance with the spirit and scope of the application. Therefore, the application is not limited to the specific embodiments shown and described, but only by the scope of the appended claims, unless otherwise specified.

Claims

1. A device for detecting the bending resilience of a clamping spring, comprising a frame (1), characterized in that, The inner bottom of the rack (1) is fixedly provided with two groups of support tables (2), the top of the rack (1) is fixedly provided with a large driving hydraulic cylinder (3) and a small driving hydraulic cylinder (4), the telescopic end of the large driving hydraulic cylinder (3) is provided with a main rod, the outer side of the main rod is provided with an adjusting external thread (31), the outer side of the adjusting external thread (31) is threadedly connected with a reference nut (32), the bottom of the reference nut (32) is fixedly provided with a laser ranging sensor (33), and the bottom of the main rod is rotatably provided with a pressing rod (34). The telescopic end of the small driving hydraulic cylinder (4) is provided with a secondary rod, the bottom of the secondary rod is provided with a bottom supporting block (41), the secondary rod is sleeved with a ranging frame (5), the ranging frame (5) is sleeved on the main rod, the ranging frame (5) is located above the reference nut (32), the laser ranging sensor (33) is used for measuring the distance between the ranging frame (5) and the reference nut (32), the two sides of the ranging frame (5) are both hingedly provided with a connecting rod (6), the bottom end of the connecting rod (6) is provided with a swingable sleeve inserting assembly (7), and the clamping spring sheet can be inserted into the sleeve inserting assembly (7); the ranging frame (5) and the inner top of the rack (1) are provided with a hanging spring (14), the elastic force of the hanging spring (14) is the same as the gravity of the ranging frame (5), the connecting rod (6) and the sleeve inserting assembly (7).

2. The device for detecting the bending resilience performance of a clamping spring according to claim 1, characterized in that, The sleeve inserting assembly (7) comprises a swing frame (75) hingedly connected to the bottom end of the connecting rod (6), a plug (71) hingedly connected to the side of the swing frame (75) close to the ranging frame (5), an insertion slot (72) formed in the plug (71), and a clamping spring sheet capable of being inserted into the insertion slot (72), a sliding frame (73) provided on the top of the plug (71), a limiting sliding block (74) slidably connected in the sliding frame (73), a distance between the rebound part (102) of the clamping spring sheet and the hinged part between the swing frame (75) and the connecting rod (6) being greater than a distance between the rebound part (102) of the clamping spring sheet and the hinged part between the swing frame (75) and the plug (71), a ranging plate (76) hingedly connected in the swing frame (75), a hinged block (77) hingedly connected to the other end of the ranging plate (76), and the hinged block (77) being hingedly connected to the bottom end of the connecting rod (6), and a pin hole formed in the swing frame (75) and the hinged block (77), and a plug pin (78) inserted into the pin hole.

3. The device for detecting the bending resilience of a clamping spring according to claim 2, wherein The opening of the insertion slot (72) is expanded.

4. The device for detecting the bending resilience of a clamping spring according to claim 3, wherein The pressing rod (34) is in the shape of an I-beam, and the length of the pressing rod (34) is greater than the length of the end of the plug (71) close to the pressing rod (34).

5. The device for detecting the bending resilience of a clip spring according to claim 1, wherein The top of the support table (2) is provided with a positioning groove (21) for limiting the front end of the clamping spring sheet.

6. The device for detecting the bending resilience of a clip spring according to claim 1, wherein The inner top of the rack (1) is fixedly provided with a lifting screw (11), the bottom end of the lifting screw (11) is threadedly connected with a lifting nut (12), the bottom end of the lifting nut (12) is rotatably provided with a connecting block (13), and the hanging spring (14) is fixedly connected to the bottom of the connecting block (13).

7. The device for detecting the bending resilience of a clip spring according to claim 1, wherein The outer side of the main rod is provided with a locking external thread (35) which is located above the pressing rod (34), and the outer side of the locking external thread (35) is threadedly connected with a locking nut (36) which is located below the adjusting external thread (31).

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