Brake machining tool based on four shafts

Abstract

The utility model provides a brake processing tool based on four axes, which comprises a quick-change zero-point clamp, a quick-change zero-point tool seat is mounted on the quick-change zero-point clamp, a base plate is inserted on the quick-change zero-point tool, the base plate is perpendicular to the quick-change zero-point tool, a clearance groove is arranged on the base plate, and the clearance groove is communicated with the quick-change zero-point tool seat. The base plate is provided with a containing groove used for containing a workpiece, the containing groove extends out of the end of the base plate and forms an open groove, the grooving direction of the containing groove is consistent with the grooving direction of the receding groove, and the base plate is further provided with a fixing bolt used for positioning the workpiece. Quick positioning and mounting of the tool are achieved through the quick-change zero-point clamp and the quick-change zero-point tool base, a workpiece is placed and fixed through vertical arrangement of the base plate and the storage groove structure, secondary positioning is conducted on the workpiece through the fixing bolts, the stability of the workpiece in the machining process is guaranteed, and the machining efficiency is improved. And multi-surface machining and complex-shape machining of the brake workpiece are achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to processing technical field, concretely is a kind of brake machining tool based on four axes. BACKGROUND

[0002] In the processing field of existing motor brake electromagnetic coil slot disc parts, the traditional processing method mainly adopts vertical machining center to cooperate with vertical tooling to process jaw body large arc surface, jaw opening surface and sliding shaft surface in sub-process, which is difficult to guarantee the processing precision of the inward inclination size of jaw body large arc surface, leading to high defective product rate, and sub-process processing will lead to repeated clamping of product, cannot guarantee the clamping precision of product, cause product size to exceed tolerance, and product processing precision is unstable.

[0003] According to the published patent: a brake caliper clamp (CN205996598U), the way of pressing the caliper body is: 3 supporting points on the bottom surface, 3 limiting points in front and back, 2 limiting points on the left and right, 4 limiting points from top to bottom, a total of 12 limiting points. Among them, 2 single-acting cylinder structures are used, and 4 hydraulic cylinder structures are used for lower limiting points. When switching products, the 3 supporting points on the bottom surface, the 3 limiting points in front and back and the 2 single-acting cylinder positions need to be re-corrected, which generally takes 12 hours, leading to limited processing efficiency and multi-surface processing capacity, and the accumulation of precision errors affects the overall precision and performance of the part. UTILITY MODEL CONTENT

[0004] In view of the deficiencies in the prior art, the utility model aims to provide a brake machining tool based on four axes.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a brake machining tool based on four axes, comprising: a quick-change zero-point clamp, a quick-change zero-point tool holder is installed on the quick-change zero-point clamp, a substrate is inserted on the quick-change zero-point tool, the substrate is perpendicular to the quick-change zero-point tool, an empty slot is formed on the substrate, a storage slot for placing a workpiece is formed on the substrate, the storage slot extends to the outside of the end of the substrate and forms an open slot, the opening direction of the storage slot and the empty slot is consistent, and a fixing bolt for positioning the workpiece is further arranged on the substrate.

[0006] As a preferred scheme of the present application, two annular protruding joints are arranged on the end face of the quick-change zero-point clamp, the protruding joints are connected with the positioning holes arranged in the quick-change zero-point tool, and a connecting hole is arranged at the end of the quick-change zero-point clamp and outside the coverage area formed by the two protruding joints.

[0007] As a preferred scheme of the present application, an installation hole for connecting with the quick-change zero-point tool is arranged in the substrate.

[0008] As a preferred scheme of the present application, the mounting hole penetrates through the base plate.

[0009] As a preferred scheme of the present application, the positioning hole, the connecting hole and the mounting hole are independently arranged and located on different planes.

[0010] As a preferred scheme of the present application, the annular protruding joint is integrally formed with the quick-change zero-point clamp.

[0011] Compared with the prior art, the utility model has the beneficial effects as follows:

[0012] The processing efficiency is improved.

[0013] Quick change: the combination design of the quick-change zero-point clamp and the quick-change zero-point tool holder enables the tool to be quickly replaced and positioned when processing different workpieces. When different specifications or types of brakes need to be processed, the operator can quickly disassemble the original tool assembly and install the appropriate new tool, greatly shortening the change time and improving the utilization rate and production efficiency of the machine tool.

[0014] Convenient operation: the design that the placement groove on the base plate extends to the end to form an open slot facilitates the placement and removal of the workpiece. The operator can easily place or remove the workpiece from the placement groove without complex operation, reducing the operation time and labor intensity and further improving the processing efficiency.

[0015] Guarantee the processing precision:

[0016] Precise positioning: the base plate and the quick-change zero-point tool are vertically arranged to provide an accurate positioning reference for the workpiece. This vertical arrangement ensures the positional accuracy of the workpiece during processing, reduces processing errors caused by inaccurate positioning, and helps to ensure the dimensional accuracy and shape accuracy of the brake.

[0017] Stable fixation: the setting of the fixing bolt can effectively position and fix the workpiece, preventing the workpiece from moving or vibrating during processing. By adjusting the tightening degree of the fixing bolt, the workpiece can always maintain a stable position during processing, thereby ensuring the consistency of the processing quality.

[0018] Reduce interference: the design of the avoidance slot provides sufficient space for the processing tool, avoiding interference between the tool and other parts of the workpiece. At the same time, the placement groove is connected with the avoidance slot, enabling the tool to smoothly enter and exit during processing, further ensuring the accuracy and stability of the processing.

[0019] Enhance the versatility and flexibility of the tool:

[0020] Adapt to various workpieces: The tooling design has a certain universality, by replacing different specifications of the base plate or adjusting the installation position of the quick-change zero tooling seat, it can adapt to various sizes and shapes of brake workpieces. This makes the enterprise no need to design and manufacture tooling for each workpiece, reduces the tooling manufacturing cost and inventory management difficulty.

[0021] Adapt to different processing needs: The four-axis machining center has high processing flexibility, combined with the design characteristics of the tooling, it can realize multi-surface machining and complex shape machining of brake workpieces. By adjusting the movement trajectory and processing parameters of the four-axis, it can meet the customized processing needs of different customers, improve the market competitiveness of the enterprise.

[0022] Convenient maintenance and maintenance:

[0023] Modular design: The quick-change zero fixture, quick-change zero tooling seat and base plate and other components adopt modular design, which makes the maintenance and maintenance of the tooling more convenient. When a component is damaged or worn out, the component can be replaced individually without replacing the entire tooling, reducing maintenance cost and repair time.

[0024] Easy to clean: The structural design of the tooling is reasonable, without too many dead angles and gaps, which is convenient for cleaning and maintenance. The cutting chips and oil stains generated during the machining process can be cleaned in time, keeping the tooling clean and in good working condition, prolonging the service life of the tooling. BRIEF DESCRIPTION OF DRAWINGS

[0025] Other features, objects and advantages of the present application will become more apparent through reading the detailed description of the non-limiting embodiments, with reference to the following drawings:

[0026] Figure 1 is a schematic view of the structure of the tooling with workpieces of the present application;

[0027] Figure 2 is a schematic view of the opening slot cooperation relationship of part of the tooling with workpieces of the present application;

[0028] Figure 3 is a schematic view of the installation structure of the tooling with workpieces of the present application;

[0029] Figure 4 is a schematic view of the specific structure of the base plate in the present application;

[0030] Figure 5 is a top view of the position cooperation of the base plate and the quick-change zero tooling in the present application;

[0031] Figure 6 is Figure 5 A-A sectional view in the

[0032] Figure 7It is one of the schematic diagrams of the embodiment two in the utility model.

[0033] Figure 8 It is another base plate schematic diagram of the embodiment two in the utility model.

[0034] In the figure: 1, quick change zero point clamp; 11, connecting hole; 2, quick change zero point tooling; 21, positioning hole; 3, base plate; 31, empty slot; 32, open slot; 33, mounting hole; 4, fixing bolt; 5, annular protruding joint. DETAILED DESCRIPTION

[0035] In order to make the technical means, creative features, purposes and effects realized by the utility model easy to understand, the utility model is further described below in combination with specific embodiments.

[0036] In the field of traditional brake machining, three-axis machining centers were the main machining equipment. However, with the increasing requirements of the market for brake product quality and production efficiency, the limitations of three-axis machining centers have become increasingly prominent.

[0037] On the one hand, three-axis machining centers have obvious efficiency bottlenecks in the machining process. Due to the limitation of their machining range, when facing brake workpieces with complex structures, multiple clamping operations are often required. Each clamping needs to consume a lot of time for positioning, alignment and fixing, which not only leads to a significant extension of the entire machining cycle, but also increases the cost of labor and equipment occupation. At the same time, multiple clamping is also prone to human error, making it difficult to guarantee machining accuracy, and the precision error accumulates with the increase of clamping times, seriously affecting the consistency of product quality.

[0038] On the other hand, three-axis machining centers are difficult to achieve consistent and continuous high-precision machining of multiple faces and multiple holes. For some cases where multiple faces and multiple holes of brake workpieces need to be machined at the same time, three-axis machining centers need to be performed in steps and cannot complete all machining tasks in one clamping. This makes it difficult to accurately control the relative position accuracy between each machining face and hole, and size deviation and shape error are likely to occur. Moreover, excessive reliance on manual intervention to adjust machining parameters and operate equipment requires operators to have high technical level and experience. Operators need to have rich professional knowledge and skilled operation skills to ensure the smooth progress of the machining process. However, in actual production, the skill levels of operators vary, and process stability is difficult to be effectively guaranteed, further reducing machining efficiency, making it difficult for three-axis machining centers to meet the strict requirements of batch production for high consistency.

[0039] Therefore, the applicant now adopts a three-axis machining center to realize multi-surface machining with a indexing head. This technology is suitable for batch precision machining of motor brake electromagnetic coil groove disc parts, especially for four-axis linkage machining scenes that require high precision and high efficiency.

[0040] The overall technical implementation scheme is as follows:

[0041] 1. Workpiece clamping and fixing

[0042] The brake workpiece (taking a micro groove disc as an example) is clamped to the four-axis machining center, and the workpiece is fixed by means of a specially designed zero tool. This zero tool is carefully designed to ensure that the workpiece does not deform during machining, laying the foundation for subsequent high-precision machining.

[0043] 2. Multi-surface machining process

[0044] Front surface machining: First, complete the machining operation of the front surface of the workpiece on the four-axis machining center.

[0045] Side surface machining: After front surface machining, the four-axis linkage (A-axis and XYZ linear axis precise cooperation) is used to machine the side surface of the workpiece, focusing on machining the side surface guide wire clearance groove 31.

[0046] Back surface machining: After side surface machining, continue to use the four-axis linkage function to machine the aperture on the back surface of the workpiece by means of the clearance groove 31 reserved on the tool.

[0047] 3. Quick tool change

[0048] After completing the machining of one workpiece, disconnect the zero tool and quickly change to another prepared tool to achieve quick clamping of the workpiece, greatly shortening the changeover time and improving equipment utilization.

[0049] 4. Key technical features

[0050] Four-axis dynamic cooperative machining: A-axis and XYZ linear axis realize precise linkage, this cooperative working mode enables groove disc and other workpieces to realize one-time machining forming of multiple surfaces and multiple holes, reducing the number of machining times and improving machining efficiency.

[0051] Special zero tool: This tool has a quick tool change function, and under the premise of maintaining stable clamping of the workpiece, it reserves the aperture position on the back surface of the workpiece that needs to be machined, ensuring smooth machining process.

[0052] Four-axis zero quick change clamp: through the specially designed quick change clamp, cooperate with four-axis linkage to realize one-time clamping forming machining of three surfaces of the workpiece, further optimizing the machining process.

[0053] The technical effects that can be achieved by using this equipment are as follows:

[0054] Simplified process

[0055] Under traditional processing methods, it takes multiple steps to complete the processing of similar workpieces. However, by adopting this technical solution, the number of steps is significantly reduced from three to one, greatly simplifying the production process.

[0056] Processing time shortened

[0057] The processing time for a single workpiece has been significantly reduced from 10 minutes to 3 minutes, greatly improving production efficiency and making this technical solution very suitable for the needs of mass production.

[0058] Improved machining accuracy

[0059] The processing precision has been significantly improved, and the product qualification rate has increased from 92% to 98%, effectively improving product quality, reducing the scrap rate, and bringing better economic benefits to the company.

[0060] like Figures 1-6 As shown, the specific structure is as follows: a four-axis brake machining fixture includes: a quick-change zero-point fixture 1, on which a quick-change zero-point fixture 2 is mounted (as those skilled in the art will know, the quick-change zero-point fixtures 1 are all connected by locating pins), a base plate 3 is inserted into the quick-change zero-point fixture 2, the base plate 3 is perpendicularly arranged to the quick-change zero-point fixture 2, a clearance groove 31 is formed on the base plate 3, and a workpiece placement groove is formed on the base plate 3, the workpiece placement groove extending to the outside of the end of the base plate 3 and forming an opening groove 32. The opening groove 32 and the clearance groove 31 have the same opening direction and are connected. The base plate 3 is also provided with fixing bolts 4 for positioning the workpiece. This application uses the vertical setting of the base plate 3 and the storage groove structure to place and fix the workpiece. The fixing bolts 4 perform secondary positioning of the workpiece to ensure the stability of the workpiece during processing. For example, the quick change zero point fixture 1 is model ZJ-400. The dimensions of the base plate 3 are: length 300mm, width 200mm, thickness 50mm; the dimensions of the storage groove are: length 300mm, width 50mm, depth 30mm; the specifications of the fixing bolts 4 are M10×50.

[0061] Two annular protruding joints 5 are provided on the end face of the quick-change zero-point fixture 1. The protruding joints are connected to the positioning holes 21 provided in the quick-change zero-point tooling 2. Through the cooperation of the protruding joints and the positioning holes 21, high-precision positioning can be achieved and machining errors can be reduced. A connecting hole 11 is provided at the end of the quick-change zero-point fixture 1 and outside the coverage area formed by the two protruding joints. The connecting hole 11 is used to fix the device of this application on the machine tool, further fix the quick-change zero-point fixture 1, and improve the stability of the tooling.

[0062] The mounting hole 33 is provided in the substrate 3 (specifically, at both sides of the substrate 3) for connecting with the quick-change zero-point tool 2, and is parallel to the positioning hole 21 and the opening direction of the positioning hole 21 in the same horizontal plane. The connection between the substrate 3 and the quick-change zero-point tool 2 is achieved through the mounting hole 33, so that the substrate 3 can be conveniently installed and disassembled, facilitating the replacement, maintenance or adjustment of the substrate 3.

[0063] The positioning hole 21, the connecting hole 11 and the mounting hole 33 are independently arranged and located on different planes. By arranging holes with different functions on different planes, the stress concentration and mutual influence between the holes are reduced, so that the tool can better withstand various forces and torques during processing, ensuring the processing precision and quality.

[0064] In order to improve the overall strength and stability of the quick-change zero-point clamp 1 and reduce the processing error caused by loose connection, the annular protruding joint 5 is integrally formed with the quick-change zero-point clamp 1.

[0065] Example two:

[0066] As Figures 7-8 , the mounting hole 33 penetrates the substrate 3 and can directly cooperate with the connecting piece on the quick-change zero-point tool 2, reducing the obstruction in the installation process and improving the installation efficiency and quality, so as to facilitate the quick replacement of the substrate according to different processing requirements.

[0067] General design principle: The design of the entire four-axis-based brake machining tool is based on the principles of modularity and standardization. Through the combination of modules such as the quick-change zero-point clamp 1, the quick-change zero-point tool 2 seat and the substrate 3, the quick replacement and positioning of the tool are realized, improving the processing efficiency and precision. At the same time, the connection and positioning between each component adopt reasonable structural design, ensuring the stability and reliability of the tool.

[0068] Product model and data information: In actual application, the specific model and data information of the machining tool will be customized according to the specifications of the brake, the processing technology requirements and the performance of the machine tool, etc. For example, the specifications and models of the quick-change zero-point clamp 1 may be selected according to the interface size and processing range of the machine tool; the size and shape of the substrate 3 will be designed according to the shape of the brake and the processing position; the specifications and number of the fixing bolts 4 will be determined according to the weight and processing force of the workpiece, etc.

[0069] Finally, it is explained that the above embodiments are only used to illustrate the technical solutions of the present application and are not limited. Although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present application can be modified or replaced by equivalents without departing from the purpose and scope of the present application. The technical solutions of the present application should be covered in the scope of the claims of the present application.

Claims

1. A four-axis based brake machining tooling fixture, characterized by, The utility model relates to a quick-change zero point clamp (1) is provided with quick-change zero point tooling (2) seat on the quick-change zero point clamp (1), the base plate (3) is inserted on the quick-change zero point tooling (2), the base plate (3) is vertically arranged with the quick-change zero point tooling (2), is provided with the emptying groove (31) on the base plate (3), is provided with the article slot for placing work piece on the base plate (3), the article slot extends to the end of the base plate (3) and forms the open slot (32), the open slot (32) is consistent with the slotting direction of the emptying groove (31), still be provided with the fixed bolt (4) for positioning work piece on the base plate (3). Two annular convex joints (5) are arranged on the end surface of the quick-change zero point clamp (1), the convex joint is connected with the positioning hole (21) arranged in the quick-change zero point tooling (2), and a connecting hole (11) is arranged on the end of the quick-change zero point clamp (1) and outside the coverage area formed by the two convex joints.

2. A four-axis based brake machining tooling fixture as claimed in claim 1, wherein, The base plate (3) is provided with a mounting hole (33) for connecting with the quick-change zero point tooling (2).

3. A four-axis based brake machining tooling fixture as claimed in claim 2, wherein, The mounting hole (33) penetrates the base plate (3).

4. A four-axis based brake machining tooling fixture as claimed in claim 3, wherein, The positioning hole (21), the connecting hole (11) and the mounting hole (33) are independently arranged and located on different planes.

5. A four-axis based brake machining tooling fixture as claimed in claim 3 or 4, wherein, The annular convex joint (5) is integrally formed with the quick-change zero point clamp (1).

6. A four-axis based brake machining tooling fixture as claimed in claim 5, wherein, ​

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