Brake support machining method

Abstract

The invention provides a brake support machining method which comprises the following steps that a clamp spring mounting clamping groove is machined through a vertical machining center; a horizontal milling machine is used for machining a support arc; a vertical machining center is used for machining a hole system of the support; the clamp spring installation clamping groove is machined through the vertical machining center, the problem that an expensive cutter needs to be customized when a broaching machine is used is solved, and cost is saved. Meanwhile, when the vertical machining center is used for machining the clamping spring installation clamping groove, the tool needing to be replaced can be stored in the tool magazine of the vertical machining center, automatic tool replacement can be achieved, the tool replacement time is greatly shortened, and the remodeling efficiency is improved.

Description

Technical Field

[0001] The present application relates to the technical field of automobile brake bracket production and processing, and in particular to a brake processing method. Background Art

[0002] The brake bracket is an important component in the automobile braking system. In order to improve the performance of the automobile braking system, the manufacturer has designed a bracket with a retaining spring mounting slot. The mounting slot has an inner groove, and the retaining spring can be clamped in the inner groove of the mounting slot. Therefore, the brake bracket with a mounting slot can increase the stability of the brake retaining spring, reduce the vibration and noise generated by the retaining spring during the braking process, and avoid the problem of retaining spring falling off. However, it increases the processing difficulty and processing cost of the brake bracket.

[0003] In the prior art, the inner sink groove is usually processed by a vertical broaching machine. However, since the tool needed to process the mounting slot is a non-standard product, it needs to be customized. The processing tool used with the vertical broaching machine usually includes three sections. The first section of the tool is responsible for rough drawing the shape of the mounting slot, the second section is responsible for semi-finishing drawing, and the third section is responsible for fine drawing to meet the requirements of the accuracy of the mounting slot. The price of such customized tools is usually around 100,000 yuan, and if different models of brake brackets are replaced, different sizes of processing tools need to be replaced. When replacing the processing tool, it is first necessary to remove the tool mounting seat from the broaching machine, and then lift the tool mounting seat with a crane, and then replace the tool. The tool replacement is complicated and time-consuming. Summary of the invention

[0004] In order to solve the above technical problems, the present application provides a brake bracket processing method, comprising the following steps: S10, use a vertical machining center to process the retaining ring installation slot; S20, machining the bracket arc using a horizontal milling machine; S30, using a vertical machining center to machine the hole system of the bracket.

[0005] In some embodiments of the present application, in step S10, the following processing steps are included: S101, fixing the brake bracket on a fixture; the fixture comprises a turntable assembly and a positioning and pressing assembly, the positioning and pressing assembly is detachably arranged on the turntable assembly; the brake bracket is positioned and pressed on the positioning and pressing assembly; S102, the vertical machining center drives the open milling cutter to process the retaining spring installation slot; S103, the vertical machining center automatically replaces the opening milling cutter with a plunge cutter; S104, the turntable assembly drives the brake bracket to rotate 90°; S105, the vertical machining center drives the insert cutter to process the internal groove.

[0006] In some embodiments of the present application, the insert knife includes a handle and a cutter head; the cutter head is fixed on the handle; and the cutter head has a cutting portion that is compatible with the inner recessed groove.

[0007] In some embodiments of the present application, the following conversion steps are also included: the brake bracket that has been processed is set as the first specification brake bracket, and the brake bracket to be processed that is different from the first specification is set as the second specification brake bracket; the fixture that is adapted to the first specification brake bracket is the first specification fixture; the fixture that is adapted to the second specification brake bracket is the second specification fixture; the inserting knife that is adapted to the first specification brake bracket is the first specification inserting knife; the inserting knife that is adapted to the second specification brake bracket is the second specification inserting knife; the positioning and clamping assembly that is adapted to the first specification brake bracket is the first specification positioning and clamping assembly; the positioning and clamping assembly that is adapted to the second specification brake bracket is the second specification positioning and clamping assembly; S106, a first specification clamp releases the first specification brake bracket after processing; S107, disassembling the first positioning and pressing assembly of the clamp; and installing a positioning and pressing assembly of a second specification; S108, fixing the second specification brake bracket on the second specification positioning and clamping assembly; S109, disassembling a first specification insert blade and installing a second specification insert blade; S110, the fixture drives the second specification brake bracket to be positioned, and the vertical machining center drives the second specification insert cutter to process the inner recessed groove of the second specification brake bracket.

[0008] In some embodiments of the present application, the positioning and clamping assembly includes a mounting plate and a first clamping unit, a second clamping unit, and a third clamping unit arranged on the mounting plate.

[0009] In some embodiments of the present application, the first clamping unit and the second clamping unit are symmetrically arranged and include a positioning column fixedly connected to the mounting plate, and the positioning column can be installed in the guide pin mounting hole of the brake bracket.

[0010] Compared with the prior art, the present invention has the following advantages and beneficial effects: the brake bracket processing method of the present application includes the following steps: using a vertical machining center to process the retaining spring mounting slot; using a horizontal milling machine to process the bracket arc; using a vertical machining center to process the bracket hole system; by using a vertical machining center to process the retaining spring mounting slot, the problem of using a broaching machine and needing to customize expensive tools is avoided, thereby saving costs; at the same time, when using a vertical machining center to process the retaining spring mounting slot, the tools that need to be replaced can be stored in the tool magazine of the vertical machining center, which can realize automatic tool replacement, greatly shorten the time for tool replacement, and improve the changeover efficiency.

[0011] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The accompanying drawings constituting a part of this document are used to provide a further understanding of this document. The exemplary embodiments and descriptions of this document are used to explain this document and do not constitute an improper limitation on this document. In the accompanying drawings: Figure 1 is a schematic structural diagram of a brake bracket provided by an exemplary embodiment of the present application; Figure 2 is a front view of a brake bracket provided by an exemplary embodiment of the present application; Figure 3 is a schematic structural diagram of a brake bracket provided by an exemplary embodiment of the present application at another angle; Figure 4 is a schematic diagram of a brake bracket during processing provided by an exemplary embodiment of the present application; Figure 5 is a front view of a brake bracket after machining and installing a slot using a vertical machining center, provided by an exemplary embodiment of the present application; Figure 6 It is a schematic diagram of machining an inner sink groove using a vertical machining center provided by an exemplary embodiment of the present application; Figure 7 It is a schematic diagram of machining an inner sink groove using a vertical machining center provided by an exemplary embodiment of the present application; Figure 8 is a front view of a bayonet provided by an exemplary embodiment of the present application; Fig. 9 is a side view of a bayonet provided by an exemplary embodiment of the present application; Fig.10 It is a step diagram of a brake bracket processing method provided by an exemplary embodiment of the present application.

[0013] In the figure: 10A, brake bracket; 10B, retaining spring; 101, mounting slot; 102, inner recessed groove; 103, bracket arc; 104, hole system; 105, first part; 106, second part; 201, turntable assembly; 202, positioning and clamping assembly; 2021, first clamping unit; 2022, second clamping unit; 2023, third clamping unit; 30, insert knife; 301, knife handle; 302, knife head. DETAILED DESCRIPTION

[0014] In order 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 clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the present application. It should be noted that, in the absence of conflict, the embodiments in the present application and the features in the embodiments can be combined with each other arbitrarily.

[0015] The brake bracket is an important component in the automobile braking system. In order to improve the performance of the automobile braking system, the manufacturer has designed a bracket with a retaining spring mounting slot. The mounting slot has an inner groove, and the retaining spring can be clamped in the inner groove of the mounting slot. Therefore, the brake bracket with a mounting slot can increase the stability of the brake retaining spring, reduce the vibration and noise generated by the retaining spring during the braking process, and avoid the problem of retaining spring falling off. However, it increases the processing difficulty and processing cost of the brake bracket.

[0016] like Figure 1 and 2 As shown, the brake bracket 10A includes a brake bracket 10A body, which is a symmetrically arranged structure, with guide pin mounting seats formed at both ends, guide pin mounting holes formed in the guide pin mounting seats, and a mounting groove 101 for a retaining spring 10B formed at the lower part of the guide pin mounting seat, the mounting groove 101 opening toward the center of the brake bracket 10A body, and in order to increase the stability of the brake retaining spring 10B, an inner recessed groove 102 is formed in the mounting groove 101, and the inner recessed groove 102 is a part of the mounting groove 101. Since the upper and lower parts of the mounting groove 101 respectively have a first portion 105 and a second portion 106 protruding from the mounting groove 101, the processing of the inner recessed groove 102 is limited and the processing difficulty is large.

[0017] In the prior art, the inner sink 102 is usually processed by a vertical broaching machine. However, since the tool required for processing the mounting slot 101 is a non-standard product, it needs to be customized. The processing tool used with the vertical broaching machine usually includes three sections. The first section of the tool is responsible for rough drawing the shape of the mounting slot 101, the second section is responsible for semi-finishing drawing, and the third section is responsible for fine drawing to meet the accuracy requirements of the mounting slot 101. This requires that the tool of each section needs to have a certain length, so that the overall length of the processing tool used with the vertical broaching machine is very long, and the stroke of the broaching machine is also very long. In addition, the price of such customized tools is usually around 100,000 yuan, which is expensive. If different models of brake brackets 10A are replaced, processing tools of different sizes need to be replaced, then processing tools of various specifications need to be configured, and the cost will increase exponentially. At the same time, when replacing the processing tool, it is first necessary to remove the tool mounting seat from the broaching machine. Because the tool is very long, the tool mounting seat is also very long and heavy, and the operator cannot manually carry and operate it. The tool mounting seat needs to be lifted by a crane, and then the tool is replaced. Therefore, the tool replacement is complicated and time-consuming.

[0018] Based on the above technical problems, an exemplary embodiment of the present application provides a method for processing a brake bracket 10A, such as Fig.10 As shown, the following steps are included: S10, using vertical machining center to process such as Figure 1 The retaining ring 10B shown in FIG. 1 is installed in the retaining groove 101 .

[0019] S20, using horizontal milling machine to process such as Figure 3 The support arc 103 is shown in FIG.

[0020] S30, using vertical machining center to process such as Figure 2 The hole system 104 of the bracket is shown in FIG.

[0021] By using a vertical machining center to process the retaining spring 10B and the mounting slot 101, the problem of using a broaching machine and needing to customize expensive tools is avoided, thereby saving costs. At the same time, when using a vertical machining center to process the retaining spring 10B and the mounting slot 101, the tools that need to be replaced can be stored in the tool magazine of the vertical machining center, and automatic tool replacement can be achieved, which greatly shortens the time for tool replacement and improves the efficiency of changeover.

[0022] In the above step S10, the following processing steps are included: S101, fix the brake bracket 10A on the clamp.

[0023] S102, the vertical machining center drives the open milling cutter to process the mounting slot 101 of the retaining spring 10B; Figure 4As shown in this figure, the brake bracket 10A is installed on the fixture when the vertical machining center drives the open milling cutter to process the mounting slot 101 of the retaining spring 10B; after the processing is completed, the brake bracket 10A is formed as shown in FIG. Figure 5 The mounting slot 101 described herein has a flat bottom.

[0024] S103, the vertical machining center automatically replaces the opening milling cutter with the insert cutter 30; the insert cutter 30 is stored in the tool magazine of the vertical machining center in advance. When the tool needs to be replaced, the vertical machining center can automatically replace the tool, saving the time of tool change and improving the efficiency of tool change.

[0025] S104, the turntable assembly 201 drives the brake bracket 10A to rotate 90°; so that the brake bracket 10A is as follows Figure 6 and 7 Status shown.

[0026] S105 , the vertical machining center drives the insert cutter 30 to machine the inner recessed groove 102 .

[0027] The insert 30 includes a tool handle 301 and a tool head 302; the tool head 302 is fixed on the tool handle 301, and the tool handle 301 is installed on the vertical machining center; the tool head 302 has a cutting portion adapted to the inner sink groove 102. Figure 6 As shown in the direction of the middle arrow, the vertical machining center drives the insert cutter 30 to reciprocate in a direction perpendicular to the fixture to process the inner groove 102. Since the insert cutter 30 reciprocates, it is not necessary to use a long tool as when the inner groove 102 is processed by a broaching machine. The cutter head 302 of the insert cutter 30 is very small in size and low in cost. The insert cutter 30 has a simple structure. At the same time, the tool is automatically replaced by the vertical machining center, and the tool change time is short and the efficiency is high.

[0028] Exemplarily, the fixture used in the above processing process includes a turntable assembly 201 and a positioning and clamping assembly 202, and the positioning and clamping assembly 202 is detachably arranged on the turntable assembly 201; the brake bracket 10A is positioned and clamped on the positioning and clamping assembly 202; the turntable assembly 201 can drive the positioning and clamping assembly 202 to rotate, so as to facilitate the rotation of the brake bracket 10A during the processing process and process different parts. The positioning and clamping assembly 202 includes a mounting plate and a first clamping unit 2021, a second clamping unit 2022, and a third clamping unit 2023 arranged on the mounting plate, and the mounting plate is detachably mounted on the turntable assembly 201 by fasteners. The first clamping unit 2021 and the second clamping unit 2022 are symmetrically arranged, and include a positioning column fixed to the mounting plate, and the positioning column can be installed in the guide pin mounting hole of the brake bracket 10A to position the brake bracket 10A. The first clamping unit 2021, the second clamping unit 2022, and the third clamping unit 2023 can be manually adjusted by adjusting screws to clamp the brake bracket 10A, or can be automatically adjusted by a cylinder or an oil cylinder to clamp the brake bracket 10A.

[0029] The processing method of the brake bracket 10A of the present application also includes the following changing steps: setting the brake bracket 10A that has been processed as the first specification brake bracket 10A, and the brake bracket 10A to be processed that is different from the first specification as the second specification brake bracket 10A; the fixture adapted to the first specification brake bracket 10A is the first specification fixture; the fixture adapted to the second specification brake bracket 10A is the second specification fixture; the insert knife 30 adapted to the first specification brake bracket 10A is the first specification insert knife 30; the insert knife 30 adapted to the second specification brake bracket 10A is the second specification insert knife 30; the positioning and clamping assembly 202 adapted to the first specification brake bracket 10A is the first specification positioning and clamping assembly 202; the positioning and clamping assembly 202 adapted to the second specification brake bracket 10A is the second specification positioning and clamping assembly 202.

[0030] S106, the first specification clamp releases the first specification brake bracket 10A after processing; S107, disassembling the first positioning and pressing assembly 202 of the fixture; installing the second specification positioning and pressing assembly 202; S108, fixing the second specification brake bracket 10A on the second specification positioning and clamping assembly 202; S109, disassembling the first specification insert cutter 30 and installing the second specification insert cutter 30; this process is automatically completed by the vertical machining center.

[0031] S110, the fixture drives the second specification brake bracket 10A to be positioned, and the vertical machining center drives the second specification inserting tool 30 to process the inner groove 102 of the second specification brake bracket 10A. After the processing is completed, the fixture releases the brake bracket 10A, takes out the processed brake bracket 10A, and cleans the iron filings etc. generated by the processing.

[0032] In this application, the terms "comprises", "comprising" or any other variations thereof are intended to cover non-exclusive inclusion, so that an article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such article or device. In the absence of more restrictions, the elements defined by the sentence "comprising..." do not exclude the presence of other identical elements in the article or device comprising the elements.

[0033] Although the preferred embodiments of the present application have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the present application.

[0034] Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the intention of the present application also includes these modifications and variations.

Claims

1. A brake bracket processing method, characterized in that: The steps include: S10, use a vertical machining center to process the retaining ring installation slot; S20, machining the bracket arc using a horizontal milling machine; S30, using a vertical machining center to machine the hole system of the bracket.

2. The brake bracket processing method according to claim 1, characterized in that: In step S10, the following processing steps are included: S101, fixing the brake bracket on a fixture; the fixture comprises a turntable assembly and a positioning and pressing assembly, the positioning and pressing assembly is detachably arranged on the turntable assembly; the brake bracket is positioned and pressed on the positioning and pressing assembly; S102, the vertical machining center drives the open milling cutter to process the retaining spring installation slot; S103, the vertical machining center automatically replaces the opening milling cutter with a plunge cutter; S104, the turntable assembly drives the brake bracket to rotate 90°; S105, the vertical machining center drives the insert cutter to process the internal groove.

3. The brake bracket processing method according to claim 2, characterized in that: The insert knife comprises a knife handle and a knife head; the knife head is fixed on the knife handle; the knife head has a cutting portion adapted to the inner sink groove.

4. The brake bracket processing method according to claim 2, characterized in that: The method also includes the following steps of changing the type: setting the brake bracket that has been processed to be a brake bracket of the first specification, and the brake bracket to be processed that is different from the first specification to be a brake bracket of the second specification; setting the fixture that is adapted to the brake bracket of the first specification to be a fixture of the first specification; setting the fixture that is adapted to the brake bracket of the second specification to be a fixture of the second specification; setting the inserting knife that is adapted to the brake bracket of the first specification to be an inserting knife of the first specification; setting the inserting knife that is adapted to the brake bracket of the second specification to be an inserting knife of the second specification; setting the positioning and clamping assembly that is adapted to the brake bracket of the first specification to be a positioning and clamping assembly of the first specification; setting the positioning and clamping assembly that is adapted to the brake bracket of the second specification to be a positioning and clamping assembly of the second specification; S106, a first specification clamp releases the first specification brake bracket after processing; S107, disassembling the first positioning and pressing assembly of the clamp; Install the second specification positioning and clamping assembly; S108, fixing the second specification brake bracket on the second specification positioning and clamping assembly; S109, disassembling a first specification insert blade and installing a second specification insert blade; S110, the fixture drives the second specification brake bracket to be positioned, and the vertical machining center drives the second specification insert cutter to process the inner recessed groove of the second specification brake bracket.

5. The brake bracket processing method according to claim 2, characterized in that: The positioning and clamping assembly comprises a mounting plate and a first clamping unit, a second clamping unit and a third clamping unit which are arranged on the mounting plate.

6. The brake bracket processing method according to claim 5, characterized in that: The first clamping unit and the second clamping unit are symmetrically arranged and include a positioning column fixedly connected to the mounting plate, and the positioning column can be installed in the guide pin mounting hole of the brake bracket.

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