A hand-held inner diameter run-out detection device for a two-cylinder brake caliper body

Abstract

The utility model provides a kind of double-cylinder brake caliper body hand-held inner diameter run-out detection device, comprising: handle portion, the lower part of handle portion is fixedly connected with lower part rod body, the lower part of lower part rod body is fixedly connected with insertion end, the inside of lower part rod body is equipped with lever, lever, the outside of lower part rod body is connected with table seat, the inside of table seat is connected with clamping sleeve, clamping sleeve is equipped with clamping block outside, the connection of clamping sleeve has digital dial gauge, the side of table seat is fixedly connected with connecting block.The double-cylinder brake caliper body hand-held inner diameter run-out detection device provided by the utility model can quickly detect and improve problem points after abnormal adjustment of production line, to avoid broken line. After product quality is abnormal, it can be quickly sorted, to avoid the waste of measurement resources and the waiting of normal production measurement demand caused by using CMM sorting.

Description

Technical Field

[0001] This utility model relates to the field of vehicle energy system technology, specifically to a handheld inner diameter runout detection device for dual-cylinder brake calipers. Background Technology

[0002] The primary function of a dual-cylinder brake caliper in passenger vehicles is to generate braking force. During braking, brake fluid is forced into the two cylinders of the caliper, pushing the pistons to move. The pistons then push the brake pads, pressing them firmly against the brake disc. Friction prevents the brake disc from rotating, thus slowing or stopping the wheel and achieving braking. The simultaneous action of the two cylinders ensures that the brake pads receive even pressure across the entire contact surface, preventing uneven wear of the brake disc due to uneven pressure. This also ensures vehicle stability during braking, preventing situations like pulling to one side. Dual-cylinder brake calipers provide greater braking force. Compared to single-cylinder calipers, the simultaneous action of both cylinders on the brake pads allows the vehicle to achieve the required braking effect in a shorter time, reducing braking distance and improving driving safety.

[0003] Dual-cylinder brake calipers typically have a better heat dissipation structure. During braking, a large amount of heat is generated due to the friction between the brake disc and brake pads. The structural design of dual-cylinder brake calipers facilitates airflow, which can more effectively dissipate heat, prevent brake fade caused by overheating, and ensure the stability of braking performance.

[0004] Brake calipers play a crucial role in the braking process of automobiles, and their manufacturing process has now reached a mature stage.

[0005] Currently, the inner bore and sealing groove of the clamp are generally machined using turning or milling processes. However, turning involves low tool life, frequent tool wear and replacement, and frequent insert changes, resulting in large fluctuations in the inner diameter and the position of the sealing groove. Another process uses a horizontal machining center with specialized tools. Although the replacement frequency is low and the tool change cycle is long, measuring the runout of the sealing groove requires a coordinate measuring machine (CMM), which is time-consuming and inefficient. Regardless of the machining method, CMM inspection and adjustment are required after any abnormal adjustments, impacting production efficiency. Utility Model Content

[0006] The present invention aims to solve the problems mentioned in the background art by providing a handheld inner diameter runout detection device for dual-cylinder brake calipers.

[0007] The specific technical solution is as follows:

[0008] A handheld internal diameter runout detection device for a dual-cylinder brake caliper includes: a handle portion; a lower rod portion fixedly connected to the lower part of the handle portion; an insertion end fixedly connected to the lower part of the lower rod portion; a lever provided inside the lower rod portion; a dial indicator base connected to the lever; a clamping sleeve connected inside the dial indicator base; a clamping block fitted outside the clamping sleeve; a digital micrometer connected to the clamping sleeve; and a connecting block fixedly connected to one side of the dial indicator base.

[0009] In a preferred embodiment of this utility model, a positioning pin is installed on the lever, and a first spring is fitted onto the positioning pin.

[0010] As a preferred embodiment of this utility model, the insertion end is provided with a countersunk hole, and a second spring is installed inside the countersunk hole.

[0011] As a preferred embodiment of this utility model, a first key is installed inside the lower rod, and a keyway is provided on the lever.

[0012] As a preferred embodiment of this utility model, a knob plunger is connected to one side of the lower rod, and a third spring is sleeved on the outside of the knob plunger.

[0013] As a preferred embodiment of this utility model, the handle part is provided with an observation through hole, and the lower rod body is provided with a U-shaped groove on one side.

[0014] This utility model has the following beneficial effects:

[0015] 1. The handheld internal diameter runout detection device for dual-cylinder brake calipers provided by this utility model can quickly detect and improve problems after production line adjustments are made, avoiding line breakage. It can also quickly sort products with quality abnormalities, avoiding the waste of measurement resources and waiting for normal production measurement needs caused by using CMM sorting.

[0016] 2. It can effectively reduce the pressure of CMM detection and improve measurement efficiency. This device has a simple structure, low cost, and short manufacturing cycle. It is easy to operate and convenient for personnel to use.

[0017] 3. Compared with other detection methods, this device has a compact structure and occupies little space. Attached Figure Description

[0018] Figure 1 A top view of the handheld inner diameter runout detection device for dual-cylinder brake calipers provided in this embodiment of the utility model.

[0019] Figure 2 The dual-cylinder brake caliper handheld inner diameter runout detection device provided in this embodiment of the utility model Figure 1 Schematic diagram of the side cross-section structure of the middle AA;

[0020] Figure 3 A schematic diagram of the structure of the handheld inner diameter runout detection device for the dual-cylinder brake caliper and the dual-cylinder brake caliper provided in this embodiment of the utility model;

[0021] Figure 4 This is a schematic diagram of a dual-cylinder brake caliper structure.

[0022] In the attached image:

[0023] 1. Digital micrometer; 2. Connecting block; 3. Third spring; 4. Lever; 5. Base; 6. Clamping sleeve; 7. Clamping block; 8. Handle; 9. Knob plunger; 10. Second spring; 11. First key; 12. Insertion end; 13. Positioning pin; 14. Lower rod; 15. Countersunk hole; 16. Observation through hole; 17. U-groove; 18. Dual-cylinder brake caliper body. Detailed Implementation

[0024] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0025] The accompanying drawings are for illustrative purposes only and are schematic diagrams, not actual images. They should not be construed as limiting the scope of this application. To better illustrate the embodiments of this utility model, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual product dimensions. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0026] In the accompanying drawings of this utility model, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," "right," "inner," and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this application. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0027] In the description of this utility model, unless otherwise explicitly specified and limited, the term "connection" or similar designation indicating the connection relationship between components should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] Example

[0029] The handheld internal diameter runout detection device for dual-cylinder brake calipers provided in this embodiment, such as Figures 1-4 As shown, it includes: a handle part 8, a lower rod 14 fixedly connected to the lower part of the handle part 8, an insertion end 12 fixedly connected to the lower part of the lower rod 14, a lever 4 provided inside the lower rod 14, a dial indicator 5 connected to the outside of the lower rod 14, a clamping sleeve 6 connected inside the dial indicator 5, a clamping block 7 sleeved on the outside of the clamping sleeve 6, a digital micrometer 1 connected to the clamping sleeve 6, and a connecting block 2 fixedly connected to one side of the dial indicator 5.

[0030] The device mainly includes a handle 8, a lower rod 14, an insertion end 12, a lever 4, a base 5, a clamping sleeve 6, a clamping block 7, and a digital micrometer 1. The handle 8 is for the operator to hold. The lower rod 14 is connected to the insertion end 12, which can be inserted into the inner hole of the brake caliper to be measured. The lever 4 is installed inside the lower rod and transmits changes in the inner hole size to the digital micrometer 1 via a mechanical transmission structure. The digital micrometer 1 is fixed to the base 5 by the clamping sleeve 6 and the clamping block 7, and is used to display the runout measurement value in real time.

[0031] The insertion end 12 of the device is inserted into the inner hole of the brake caliper body, and contacts the inner hole wall through the lever 4. When there is runout or dimensional deviation in the inner hole, the lever 4 transmits the displacement to the probe of the digital micrometer 1, which immediately displays the runout value. The device uses a first spring sleeved on the positioning pin 13 and a second spring 10 installed in the countersunk hole 15 to provide a restoring force, ensuring that the lever 4 maintains stable contact with the measuring surface and improving measurement accuracy.

[0032] The first key 11 engages with the keyway on lever 4 to prevent lever rotation, ensuring linearity and accuracy in displacement transmission. The knob plunger 9 and the third spring 3 are used to adjust and fix the lever position to accommodate measurement needs of different sizes. The observation hole 16 and U-shaped groove 17 allow operators to visually inspect the internal structure and make manual adjustments.

[0033] A locating pin 13 is mounted on lever 4, and a first spring is fitted onto locating pin 13. Locating pin 13 provides a fixed pivot point for the swing of lever 4, ensuring a stable and predictable trajectory. The first spring fitted onto locating pin 13 provides a reset torque for the lever. When the measurement is completed or the insertion end 12 is removed from the workpiece, the spring force automatically pushes lever 4 back to its initial position, ensuring repeatability and consistency of contact during the next measurement, while preventing damage or measurement errors caused by free swaying of the lever.

[0034] The insertion end 12 has a countersunk hole 15 inside, and a second spring 10 is installed inside the countersunk hole 15. The second spring 10 is installed in the countersunk hole 15 of the insertion end 12, and its main function is to apply an upward preload to the entire lever mechanism. This preload ensures that the insertion end 12 can stably fit against the inner bore reference surface of the brake caliper body, while maintaining constant and reliable contact between the probe of the lever 4 and the sealing groove or inner bore wall to be measured, thereby eliminating measurement deviations caused by gaps or shaking and improving the stability and accuracy of the measurement.

[0035] The lower rod 14 has a first key 11 installed inside, and a keyway is provided on the lever 4. The first key 11 and the keyway on the lever 4 cooperate to form a key connection. The function of this structure is to restrict the circumferential rotation of the lever 4 within its mounting hole, forcing the lever to swing only in its designed specific direction, usually the vertical direction. This is a key mechanism to ensure that the displacement of the lever 4 can be accurately and without distortion transmitted to the digital dial indicator 1, preventing inaccurate measurement data due to lever rotation.

[0036] A knob plunger 9 is connected to one side of the lower rod 14, and a third spring 3 is fitted around the outside of the knob plunger 9. The knob plunger 9 is a manually operable positioning element with a self-locking function. By rotating the knob, its end can be extended or retracted, thereby tightening or loosening the lever 4. The third spring 3 on its outer side provides elastic force to the plunger, helping it to maintain the locked state. The working principle of this device is as follows: when the device is not in use or during transportation, the knob plunger 9 is screwed in to lock the lever 4, preventing its accidental movement and protecting the precision lever mechanism; when measurement is required, the knob plunger is screwed out to release the lever, allowing it to move freely for measurement.

[0037] The handle 8 has an observation hole 16 inside, and the lower rod 14 has a U-shaped groove 17 on one side. The design of the observation hole 16 and the U-shaped groove 17 is based on the principles of visual inspection and ease of operation. The observation hole 16 allows the operator to directly see the working status of components such as the lever 4 inside the device, facilitating quick diagnosis of whether there is jamming or abnormal reset. The U-shaped groove 17 provides space for adjustment and operation. For example, when manual calibration or troubleshooting is required, the internal mechanism can be accessed through the U-shaped groove 17, or the contact between the digital micrometer probe and the lever can be easily observed, improving the maintainability and ease of operation of the device.

[0038] In summary, the handheld internal diameter runout detection device for dual-cylinder brake calipers provided in this embodiment has the following advantages:

[0039] 1. After abnormal adjustments to the production line, the problem points can be quickly detected and improved to avoid line breakage.

[0040] 2. Products with abnormal quality can be quickly sorted, avoiding the waste of measurement resources and waiting for normal production measurement needs caused by using CMM sorting.

[0041] 3. It can effectively reduce the pressure of CMM testing and improve measurement efficiency.

[0042] 4. After this device is connected to the network via Bluetooth, it can use dedicated software to automatically collect data and generate control charts.

[0043] 5. This device has a simple structure, low cost, and short manufacturing cycle.

[0044] 6. This device has a simple structure, is easy to operate, and is convenient for personnel to use.

[0045] 7. Compared with other detection methods, this device has a compact structure and occupies little space.

[0046] This device, through its handheld design and mechanical-electronic integration, enables rapid on-site inspection, avoiding the problems of low efficiency and high resource consumption associated with traditional C-measuring machines. Its compact structure and easy operation allow for quick identification of machining abnormalities in the inner bore of brake calipers, supporting real-time adjustments and sorting, thereby improving production efficiency and product quality stability.

[0047] The above are merely preferred embodiments of the present utility model and are not intended to limit the implementation methods and protection scope of the present utility model. Those skilled in the art should realize that any equivalent substitutions and obvious changes made based on the description and illustrations of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A hand-held inner diameter run-out detection device for a dual-cylinder brake caliper body, characterized by, include: The handle (8) has a lower rod (14) fixedly connected to its lower part. The lower rod (14) has an insertion end (12) fixedly connected to its lower part. The lower rod (14) has a lever (4) inside. The lever (4) has a dial indicator (5) connected to its outer side. The dial indicator (5) has a clamping sleeve (6) connected to its inner side. The clamping sleeve (6) has a clamping block (7) on its outer side. The clamping sleeve (6) has a digital micrometer (1) connected to it. The dial indicator (5) has a connecting block (2) fixedly connected to one side.

2. The handheld inner diameter runout detection device for dual-cylinder brake calipers according to claim 1, characterized in that, A positioning pin (13) is installed on the lever (4), and a first spring is fitted on the positioning pin (13).

3. The dual caliper hand-held inside diameter run-out gauge of claim 1, wherein, The insertion end (12) has a countersunk hole (15) inside, and a second spring (10) is installed inside the countersunk hole (15).

4. The dual caliper hand-held inside diameter run-out gauge of claim 1, wherein, The lower rod (14) is equipped with a first key (11), and the lever (4) is provided with a keyway.

5. The hand held inside diameter run-out detection device for dual piston brake caliper bodies of claim 1 wherein, A knob plunger (9) is connected to one side of the lower rod (14), and a third spring (3) is sleeved on the outside of the knob plunger (9).

6. The handheld internal diameter runout detection device for dual-cylinder brake calipers according to any one of claims 1-5, characterized in that, The handle (8) has an observation through hole (16) inside, and the lower rod (14) has a U-shaped groove (17) on one side.

Images