Resistance detection device for return spring
By designing a return spring force detection device including a bracket, resistance detection guide column and S-type pressure sensor, the problem of lack of online detection in the prior art is solved, and accurate detection of return spring force resistance and product quality are achieved. ensure.
Patent Information
- Application Number
- CN202420826242.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-22
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2034-04-22
AI Technical Summary
The prior art lacks an effective online return spring resistance detection device, which makes it impossible to ensure that the assembly resistance of the return spring meets the design requirements, affecting the consistency of product quality.
Design a return spring force resistance including a bracket, a force detection guide column, a sliding seat, a spring force detection pressure plate, a scale pointer, a scale ruler, a linear bearing, an S-type pressure sensor, a floating joint and a dual-axis repeating stroke adjustable cylinder The detection device uses a dual-axis re-movable stroke adjustable cylinder to drive the S-type pressure sensor for force detection, and combines a scale to ensure detection accuracy and flexibility.
It realizes the accuracy and consistency of the force resistance detection of return springs, and can be used for return springs of different heights and diameters, reducing cost investment, and stable operation, preventing the misinstallation of unqualified products, effectively ensuring the product Quality and consistency.
Smart Images
Figure CN222212217U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the field of automobile booster detection machinery, in particular to a return spring resistance detection device. Background Art
[0002] The booster is a component that uses hydraulic pressure, air pressure, vacuum (negative pressure) or electrical energy to increase the force applied by the driver to the pedal. Currently, boosters include air boosters, vacuum boosters, electric boosters, hydraulic boosters, etc.
[0003] The vacuum booster assembly is a key component in the automobile braking system. Its main function is to amplify the servo force through the vacuum booster through the pedal force, acting on the brake master cylinder, causing it to move forward to compress the brake fluid in the master cylinder, and then deliver hydraulic pressure to the entire vehicle's braking system through the brake master cylinder oil outlet, thereby realizing the vehicle's braking function.
[0004] Vacuum boosters can be roughly divided into two structures: double diaphragm and single diaphragm. The vacuum pressure difference generated by the front and rear cavities generates pressure to increase the output force and achieve the boosting effect. The vacuum booster is divided into the front and rear chambers by the diaphragm. In the non-braking state, the vacuum generated when the engine is working will evacuate the front and rear chambers of the vacuum booster. Both chambers are vacuum environments with the same pressure. When the brake pedal is pushed, the rear chamber begins to enter the atmosphere through the valve port conversion mechanism, and the front chamber continues to be in a vacuum state. The pressure difference between the front and rear chambers generates vacuum boosting. When the brake is released, the vacuum booster is reset by the internal return spring to continue to ensure that the front and rear chambers are at the same vacuum degree to prepare for the next braking. In order to have enough resistance to reset during the return process, the return spring needs to be tested for resistance before the product is assembled to ensure that the assembly resistance of the return spring meets the product design requirements and ensure product quality consistency. It is necessary to design a return spring resistance detection device to meet production needs. Summary of the invention
[0005] The utility model provides a return spring resistance detection device to solve the problem of lack of return spring online resistance detection device at present.
[0006] The technical scheme adopted by the utility model is to include a bracket, a resistance detection guide column, a sliding seat, a spring resistance detection pressure plate, a scale pointer, a scale ruler, a linear bearing, an S-type pressure sensor, a floating joint, and a double-axis double-action stroke adjustable cylinder, wherein the double-axis double-action stroke adjustable cylinder is fixedly connected to the resistance detection cylinder seat of the bracket, the linear bearing passes through the resistance detection cylinder seat and is fixedly connected thereto, the upper end of the floating joint is threadedly connected to the piston rod of the double-axis double-action stroke adjustable cylinder, and the lower end is threadedly connected to the sliding seat, the lower parts of two tension detection guide columns are fixedly connected to the sliding seat, and the upper parts pass through the inner holes of two linear bearings and are slidably connected thereto, the top of the S-type pressure sensor is threadedly connected to the lower part of the sliding seat, the upper part of the spring resistance detection pressure plate is fixedly connected to the lower part of the S-type pressure sensor, the scale ruler is fixedly connected to the resistance detection back plate of the bracket, and the scale pointer is installed on the sliding seat.
[0007] The bracket includes a resistance detection base, a resistance detection back plate, a resistance detection cylinder seat, resistance detection base angle ribs and resistance detection cylinder seat angle ribs, wherein the resistance detection base, the resistance detection back plate and the resistance detection base angle ribs are respectively fixedly connected at their respective connections by hexagon socket head screws, and the resistance detection cylinder seat, the resistance detection back plate and the resistance detection cylinder seat angle ribs are respectively fixedly connected at their respective connections by hexagon socket head screws.
[0008] The scale pointer is mounted on the sliding seat using a cross recessed countersunk screw.
[0009] The scale is mounted on the resistance detection back plate by means of hexagon socket cylindrical head screws.
[0010] The linear bearing is mounted on the resistance detection cylinder seat through a hexagon socket head screw.
[0011] The lower part of the S-type pressure sensor is threadedly connected to a transfer screw, and the lower part of the transfer screw is threadedly connected to a spring resistance detection pressure plate.
[0012] The double-axis double-acting stroke-adjustable cylinder is mounted on a resistance detection cylinder seat through hexagon socket cylindrical head screws.
[0013] The advantages of the utility model are novel structure, double-axis double-acting stroke-adjustable cylinder drives the S-shaped pressure sensor to press down, the force sensor will not have additional interference, the resistance value is directly read after the spring is compressed, and the test result is accurate and consistent; it is used to test the resistance before assembling the return spring of the product to ensure that the spring compression resistance meets the notification requirements. The double-axis double-acting stroke-adjustable cylinder is used in conjunction with a ruler to test the resistance of return springs of different heights and diameters. It has low cost investment, convenient adjustment, stable operation, and can be used in conjunction with assembly equipment to prevent the wrong installation of unqualified springs, which can effectively ensure product quality and consistency. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a structural schematic diagram of the utility model;
[0015] Figure 2 yes Figure 1 Left view of;
[0016] Figure 3 yes Figure 1 A top view of
[0017] Figure 4 It is a stereogram of the utility model. DETAILED DESCRIPTION
[0018] like Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown: it includes a bracket 1, a resistance detection guide column 2, a sliding seat 3, a spring resistance detection pressure plate 4, a scale pointer 5, a scale ruler 6, a linear bearing 7, an S-type pressure sensor 8, a floating joint 9, and a double-axis double-acting stroke adjustable cylinder 10, wherein the double-axis double-acting stroke adjustable cylinder 10 is fixedly connected to the resistance detection cylinder seat 103 of the bracket 1, the linear bearing 7 passes through the resistance detection cylinder seat 103 and is fixedly connected thereto, the upper end of the floating joint 9 is threadedly connected to the piston rod of the double-axis double-acting stroke adjustable cylinder 10, and the lower end is threadedly connected to the sliding seat 3, the lower parts of the two tension detection guide columns 2 are fixedly connected to the sliding seat 3, and the upper parts pass through the inner holes of the two linear bearings 7 and are slidably connected thereto, the top of the S-type pressure sensor 8 is threadedly connected to the lower part of the sliding seat 3, the upper part of the spring resistance detection pressure plate 4 is fixedly connected to the lower part of the S-type pressure sensor 8, the scale ruler 6 is fixedly connected to the resistance detection back plate 102 of the bracket 1, and the scale pointer 5 is installed on the sliding seat 3.
[0019] The bracket 1 includes a resistance detection base 101, a resistance detection back plate 102, a resistance detection cylinder seat 103, a resistance detection base angle rib 104 and a resistance detection cylinder seat angle rib 105, wherein the resistance detection base 101, the resistance detection back plate 102 and the resistance detection base angle rib 104 are respectively connected to each other by M6 hexagon socket head screws, and the resistance detection cylinder seat 103, the resistance detection back plate 102 and the resistance detection cylinder seat angle rib 105 are respectively connected to each other by M6 hexagon socket head screws.
[0020] The scale pointer 5 is mounted on the sliding seat 3 using a cross recessed countersunk screw 14.
[0021] The scale 6 is mounted on the resistance detection back plate 102 by means of M4 hexagon socket head screws 13 .
[0022] The linear bearing 7 is mounted on the resistance detection cylinder seat 103 by means of M4 hexagon socket head screws 11 .
[0023] The lower portion of the S-shaped pressure sensor 8 is threadedly connected to the adapter screw 15 , and the lower portion of the adapter screw 15 is threadedly connected to the spring resistance detection plate 4 .
[0024] The double-axis double-acting stroke-adjustable cylinder 10 is mounted on the resistance detection cylinder seat 103 by means of M6 hexagon socket head screws 12 .
[0025] How it works
[0026] After the installation is completed, the distance between the resistance detection base 101 and the spring resistance detection pressure plate 4 is measured to obtain the reference size value. The assembly resistance drawing of the return spring has the required compression size. In this way, by converting the position relationship, the stroke that the cylinder needs to be pressed down can be calculated, and the stroke of the double-axis double-acting stroke-adjustable cylinder 10 is adjusted to limit the position. After the cylinder is pressed down, the scale 6 corresponding to the scale pointer 5 meets the size requirements, and the stroke adjustment nut of the double-axis double-acting stroke-adjustable cylinder 10 is locked, and the return spring resistance test can be started.
[0027] Start the device, the double-axis double-acting stroke-adjustable cylinder 10 moves downward, driving the spring resistance detection plate 4 to compress the return spring for resistance detection. The S-type pressure sensor 8 detects the spring resistance value, reads the resistance value and feeds it back to the equipment software. The software determines whether the collected resistance value is qualified or not according to the set parameter value. If it is unqualified, the equipment alarms and the unqualified spring needs to be removed. After the identified unqualified products are placed in the unqualified product box, the detection device can proceed to the next spring test to prevent the outflow of unqualified products and ensure product quality.
Claims
1. A return spring resistance detection device, characterized in that: It includes a bracket, a resistance detection guide column, a sliding seat, a spring resistance detection pressure plate, a scale pointer, a scale ruler, a linear bearing, an S-type pressure sensor, a floating joint, and a double-axis double-action stroke adjustable cylinder, wherein the double-axis double-action stroke adjustable cylinder is fixedly connected to the resistance detection cylinder seat of the bracket, the linear bearing passes through the resistance detection cylinder seat and is fixedly connected thereto, the upper end of the floating joint is threadedly connected to the piston rod of the double-axis double-action stroke adjustable cylinder, and the lower end is threadedly connected to the sliding seat, the lower parts of two tension detection guide columns are fixedly connected to the sliding seat, and the upper parts pass through the inner holes of two linear bearings and are slidably connected thereto, the top of the S-type pressure sensor is threadedly connected to the lower part of the sliding seat, the upper part of the spring resistance detection pressure plate is fixedly connected to the lower part of the S-type pressure sensor, the scale ruler is fixedly connected to the resistance detection back plate of the bracket, and the scale pointer is installed on the sliding seat.
2. A return spring resistance detection device according to claim 1, characterized in that: The bracket includes a resistance detection base, a resistance detection back plate, a resistance detection cylinder seat, resistance detection base angle ribs and resistance detection cylinder seat angle ribs, wherein the resistance detection base, the resistance detection back plate and the resistance detection base angle ribs are respectively fixedly connected at their respective connections by hexagon socket head screws, and the resistance detection cylinder seat, the resistance detection back plate and the resistance detection cylinder seat angle ribs are respectively fixedly connected at their respective connections by hexagon socket head screws.
3. A return spring resistance detection device according to claim 1, characterized in that: The scale pointer is mounted on the sliding seat using a cross recessed countersunk screw.
4. A return spring resistance detection device according to claim 1, characterized in that: The scale is mounted on the resistance detection back plate by means of hexagon socket cylindrical head screws.
5. A return spring resistance detection device according to claim 1, characterized in that: The linear bearing is mounted on the resistance detection cylinder seat through a hexagon socket head screw.
6. A return spring resistance detection device according to claim 1, characterized in that: The lower part of the S-type pressure sensor is threadedly connected to a transfer screw, and the lower part of the transfer screw is threadedly connected to a spring resistance detection pressure plate.
7. A return spring resistance detection device according to claim 1, characterized in that: The double-axis double-acting stroke-adjustable cylinder is mounted on a resistance detection cylinder seat through hexagon socket cylindrical head screws.