Turning tool for automobile brake calipers

Abstract

The utility model belongs to the technical field of machining tools, and particularly relates to an automobile brake caliper turning tool which comprises a workpiece, a port at the end of the workpiece and a machining face at the tail of the workpiece. The supporting plate is of a semicircular structure, transition connecting discs are arranged at the two ends of the supporting plate, the supporting plate and the transition connecting discs are combined to form a cylindrical structure and used for reducing slight shock of equipment, a hydraulic ejector rod is arranged in the transition connecting disc at the upper end of the supporting plate and used for locking a workpiece and preventing the workpiece from loosening during turning, and a positioning pin for fixing the workpiece is arranged in the transition connecting disc at the lower end of the supporting plate; and the transfer disc is located at the lower end of the hydraulic ejector rod and provided with a guide edge through a positioning column at the bottom, clamping sticks are evenly distributed at the bottom of the positioning column in the circumferential direction, the guide edge is used for positioning the supporting plate, and the clamping sticks are used for clamping the end opening from the outer side and are combined with the guide edge to form inner and outer dual positioning and clamping. According to the utility model, a workpiece can be automatically mounted to a preset position and the coaxiality of the workpiece can be ensured, the subsequent turning precision is improved while the dismounting and the use are convenient, and meanwhile, the slight shock during the operation of equipment is reduced by utilizing an integral circular structure, so that the turning use is convenient.

Description

Technical Field

[0001] This utility model belongs to the field of machining tooling technology, and in particular relates to a machining tooling for automotive brake calipers. Background Technology

[0002] Automotive brake calipers are key components of the automotive braking system. Their main function is to slow down, stop, or keep the moving wheels stationary. They are essential components for ensuring safe driving, and their performance directly affects the vehicle's braking effect and driving safety.

[0003] Currently, when machining automotive brake calipers, they are often manually locked and clamped by irregularly shaped tooling. When the tooling rotates at high speed, the equipment will experience micro-vibrations, resulting in poor roundness and instability of the machined products, leading to low production efficiency of products that meet the requirements.

[0004] To address the aforementioned issues, this application proposes a machining fixture for automotive brake calipers. Utility Model Content

[0005] The purpose of this utility model is to provide a machining tooling for automotive brake calipers, which solves the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0007] This utility model relates to a machining fixture for automotive brake calipers, comprising: a workpiece and its end ports and the machining surface at the tail; a support plate, which is a semi-circular structure with transition connecting discs at both ends, forming a cylindrical structure to reduce equipment vibration; a hydraulic push rod inside the transition connecting disc at the upper end of the support plate for locking the workpiece and preventing it from loosening during machining; and a positioning pin inside the transition connecting disc at the lower end of the support plate for fixing the workpiece; and an adapter plate located at the lower end of the hydraulic push rod, with a guide edge provided by a positioning post at the bottom. Clamping rods are evenly distributed circumferentially at the bottom of the positioning post. The guide edge is used to position the support plate, and the clamping rods are used to clamp the ports from the outside, forming a double positioning and clamping system with the guide edge.

[0008] Furthermore, the upper end of the adapter plate is provided with a threaded post, and a positioning shaft is installed on its top, the top of which is chamfered.

[0009] Furthermore, the lower end of the hydraulic push rod has a stepped hole structure, with the upper hole used to mate with the positioning shaft to position the adapter plate coaxially, and the lower hole used to helically install the threaded column.

[0010] Furthermore, the upper region on the outer side of the positioning post has a threaded structure, thereby installing a spiral sleeve, the bottom of which has a circular protrusion structure.

[0011] Furthermore, the lower outer side of the positioning post is provided with an elastic sleeve for wrapping the clamping rod inside, and the outer side of the elastic sleeve protrudes outward.

[0012] Furthermore, the upper end of the clamping rod is provided with a slider, which is slidably installed in the slide rail at the bottom of the positioning column.

[0013] Furthermore, the circular structure at the bottom of the spiral sleeve is used to compress the elastic sleeve to shrink it inward, thereby driving the clamping rod to slide inward.

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

[0015] The tooling of this utility model consists of a transition connecting plate, a hydraulic push rod, a support plate, and a positioning pin. The support plate is designed as a semi-circular structure, which in turn forms an overall circular structure. This reduces micro-vibration of the equipment during high-speed operation. The hydraulic automatic locking method achieves a quick clamping effect. Compared with the traditional manual locking method, the processing efficiency is improved by 30%, and the cylindricity of the precision hole of the product is improved from 0.01mm to 0.005mm. While effectively improving the machining quality, the lightweight design of this tooling further enhances its performance.

[0016] This invention, through the addition of an adapter plate, automatically positions the port to form a coaxial structure via the guide edge during workpiece installation. Then, under the spiral advance of the spiral sleeve, the elastic sleeve is squeezed, causing the circumferentially distributed clamping rollers to simultaneously clamp the outer surface of the port, forming a bidirectional positioning. The operation is simple and convenient, while the workpiece installation accuracy is high, further improving the machining quality of the workpiece and increasing the product qualification rate.

[0017] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall appearance structure of the tooling of this utility model;

[0020] Figure 2 This is a schematic diagram of the workpiece structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the internal structure of the tooling of this utility model;

[0022] Figure 4This is a schematic diagram of the internal structure of the adapter plate of this utility model;

[0023] Figure 5 This is a schematic diagram of the cross-section of the adapter plate and its partially enlarged structure according to the present invention;

[0024] The attached diagram lists the components represented by each number as follows:

[0025] In the diagram: 1. Workpiece; 2. Support plate; 3. Transition connecting plate; 4. Hydraulic push rod; 5. Locating pin; 6. Adapter plate; 7. Port; 8. Machined surface; 9. Threaded post; 10. Locating shaft; 11. Locating pin; 12. Spiral sleeve; 13. Elastic sleeve; 14. Guide edge; 15. Clamping roller; 16. Slider; 17. Slide rail. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] In the description of this utility model, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "around" and other terms indicating orientation or positional relationship are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0028] Please see Figure 1-5 As shown, this utility model is a machining fixture for automotive brake calipers, including: a workpiece 1, a port 7 at its end, and a machining surface 8 at its tail.

[0029] The support plate 2 is a semi-circular structure with transition connecting plates 3 at both ends, which are combined to form a cylindrical structure to reduce equipment vibration. The transition connecting plate 3 at the upper end of the support plate 2 is equipped with a hydraulic push rod 4 to lock the workpiece 1 and prevent it from loosening during machining. The transition connecting plate 3 at the lower end of the support plate 2 is equipped with a positioning pin 5 to fix the workpiece 1.

[0030] The adapter plate 6 is located at the lower end of the hydraulic push rod 4. It has a guide edge 14 through the positioning post 11 at the bottom. The bottom of the positioning post 11 has clamping rods 15 evenly distributed around its circumference. The guide edge 14 is used to position the support plate 2, and the clamping rods 15 are used to clamp the port 7 from the outside. Together with the guide edge 14, they form a double positioning and clamping mechanism.

[0031] This embodiment provides a high-precision automotive brake caliper fixture. By using the docking positioning axis of the guide edge 14 and the port 7, combined with the clamping roller 15, a double clamping effect is formed, which allows the workpiece to be directly fixed in the predetermined position, improving the coaxiality of the installation. Furthermore, in conjunction with the transition connecting plate 3 and the hydraulic push rod 4, a convenient fixing is formed, which is combined into an integral circular structure, which can effectively reduce the micro-vibration during equipment operation and improve the precision of machining.

[0032] The upper end of the adapter plate 6 is provided with a threaded post 9, and a positioning shaft 10 is installed on its top. The top of the positioning shaft 10 is provided with a chamfer. The lower end of the hydraulic push rod 4 is a stepped hole structure. The upper hole is used to mate with the positioning shaft 10 to position the adapter plate 6 coaxially, and automatic alignment is formed under the chamfering guidance of the enlarged structure. The lower hole is used to spirally install the threaded post 9.

[0033] The upper part of the outer side of the positioning post 11 has a threaded structure, through which a spiral sleeve 12 is installed. The bottom of the spiral sleeve 12 has a circular protrusion structure. A protruding plate is added to the inner side of the spiral sleeve 12 for installing the thread, thereby creating a gap between the spiral sleeve 12 and the positioning post 11 for installing the circular protrusion structure.

[0034] The lower outer side of the positioning post 11 is provided with an elastic sleeve 13, which is used to wrap the clamping rod 15 inside. The outer side of the elastic sleeve 13 protrudes outward and contracts inward after being squeezed by external force, thereby generating a reverse force to achieve the effect of automatic fixation.

[0035] The upper end of the clamping rod 15 is provided with a slider 16, which is slidably installed on the slide rail 17 at the bottom of the positioning post 11.

[0036] The circular structure at the bottom of the spiral sleeve 12 is used to compress the elastic sleeve 13 to shrink it inward, thereby driving the clamping rod 15 to slide inward.

[0037] It is understandable that this utility model can automatically install the workpiece to the predetermined position and ensure its coaxiality, which facilitates disassembly and use while improving the accuracy of subsequent machining. At the same time, the overall circular structure reduces the micro-vibration during equipment operation, making it convenient for machining.

[0038] A specific application of the operation process in this embodiment is as follows: First, the two support plates 2 of this fixture are combined to form a circular structure, and combined with the upper and lower integrated setting, so that the workpiece avoids the disadvantages of traditional irregular structures when running at high speed, thereby reducing the micro-vibration of the equipment and ensuring the stability of the product during processing. In addition, in order to prevent problems such as deformation and misalignment after the fixture is assembled, the material of the fixture is heat-treated to a hardness of 28-32HRC after rough machining, and then subjected to secondary precision machining. After the whole assembly is fixed on the main shaft of the equipment, it is machined again on the equipment to ensure the coaxiality of the fixture. Only when the fixture accuracy reaches the product accuracy can it be guaranteed. Finally, through the segmented structure of the hydraulic push rod 4 and the adapter plate 6, the guide edge 14 is pre-positioned by the guide edge 14 when installing the workpiece. Then, by the screwing in of the spiral sleeve 12, the circular structure at its end can be used to squeeze the elastic sleeve 13, causing it to shrink inward, thereby driving the circumferentially distributed clamping rollers 15 to simultaneously clamp the outer surface of the port 7, thereby forming a double-layer fixation inside and outside, ensuring the stability of the workpiece installation, while the installation method is simple and the positioning accuracy is high, effectively improving the machining quality of the product.

[0039] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above 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 one or more embodiments or examples.

[0040] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A machining fixture for automotive brake calipers, characterized in that, include: The workpiece (1), its end port (7), and the machined surface (8) at the tail; The support plate (2) is a semi-circular structure with transition connecting plates (3) at both ends, which are combined to form a cylindrical structure to reduce equipment vibration. The transition connecting plate (3) at the upper end of the support plate (2) is equipped with a hydraulic push rod (4) to lock the workpiece (1) and prevent it from loosening during machining. The transition connecting plate (3) at the lower end of the support plate (2) is equipped with a positioning pin (5) to fix the workpiece (1). The adapter plate (6) is located at the lower end of the hydraulic push rod (4). It has a guide edge (14) through the positioning post (11) at the bottom. The bottom of the positioning post (11) is evenly distributed with clamping rods (15). The guide edge (14) is used to position the support plate (2). The clamping rods (15) are used to clamp the port (7) from the outside. Together with the guide edge (14), they form a double positioning and clamping mechanism.

2. The machining fixture for automotive brake calipers according to claim 1, characterized in that: The upper end of the adapter plate (6) is provided with a threaded post (9) and a positioning shaft (10) is installed on its top. The top of the positioning shaft (10) is provided with a chamfer.

3. The machining fixture for automotive brake calipers according to claim 1, characterized in that: The lower end of the hydraulic push rod (4) has a stepped hole structure. The upper hole is used to connect the positioning shaft (10) to position the adapter plate (6) coaxially, and the lower hole is used to install the threaded column (9) spirally.

4. The machining fixture for automotive brake calipers according to claim 1, characterized in that: The upper part of the outer side of the positioning post (11) has a threaded structure, through which a spiral sleeve (12) is installed. The bottom of the spiral sleeve (12) has a circular protrusion structure.

5. The machining fixture for automotive brake calipers according to claim 1, characterized in that: The lower outer side of the positioning post (11) is provided with an elastic sleeve (13) for wrapping the clamping rod (15) inside, and the outer side of the elastic sleeve (13) protrudes outward.

6. The machining fixture for automotive brake calipers according to claim 1, characterized in that: The upper end of the clamping rod (15) is provided with a slider (16), which is slidably installed in the slide (17) at the bottom of the positioning post (11).

7. The machining fixture for automotive brake calipers according to claim 4, characterized in that: The circular structure at the bottom of the spiral sleeve (12) is used to squeeze the elastic sleeve (13) to shrink it inward, thereby driving the clamping rod (15) to slide inward.

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