Shoe plate side face milling device of brake shoe

Abstract

The invention relates to the technical field of brake shoe machining, in particular to a brake shoe plate side face milling device which comprises a rotating shaft and a fixing base, the fixing base is provided with a fixing fork, a clamping mechanism and a first driving mechanism, and the clamping mechanism comprises a base, a supporting column, a clamping jaw and a second driving device. The base is rotationally connected with the fixed base, the supporting column penetrates through the base to be connected with the second driving device, the clamping jaw is connected with the supporting column, and a turnover device is arranged below the base and comprises a pushing block and a third driving device. A workpiece is clamped and fixed through the clamping mechanism, the turnover mechanism pushes the clamping mechanism to turn over by 90 degrees to enable a rib plate of the brake shoe to face upwards, the rib plate is conveniently clamped by the fixing fork, and therefore automatic clamping of the brake shoe is achieved, and machining of the two side edges of the brake shoe plate is facilitated. The device is reasonable in design and convenient to use, the production efficiency is improved, and the machining quality of the brake shoe is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of brake shoe processing, in particular to a milling processing device for a side surface of a brake shoe. Background Art

[0002] The brake shoe is one of the key components in the automobile braking system, including an arc-shaped shoe plate and a rib plate. The shoe plate is connected to the outer periphery of the rib plate, and axial holes are provided at both ends of the rib plate. When braking, the braking device pushes the two brake shoes to open outward and presses the brake shoes, so that the friction plate outside the shoe plate contacts the inner end surface of the brake wheel, generating friction to reduce the rotation speed of the brake wheel, thereby reducing the speed of the vehicle, thereby achieving vehicle braking and ensuring safe operation of the vehicle.

[0003] When machining the brake shoe, it is necessary to mill the two sides of the shoe plate, that is, the two sides parallel to the rib plate, to ensure other machining processes of the brake shoe. In the prior art, the milling of the two sides of the brake shoe is done manually by clamping it into a fixture, which slows down the production speed and seriously affects the production efficiency of the brake shoe. Summary of the invention

[0004] The purpose of the present invention is to provide a brake shoe side milling processing device in view of the deficiencies of the prior art, which has a reasonable design, is conducive to the automatic clamping of the brake shoe, and improves the production efficiency.

[0005] The technical solution adopted by the present invention to solve its technical problems is: a brake shoe side milling processing device, characterized in that: it includes a rotating shaft and a fixed base, the fixed base is connected to the rotating shaft, the fixed base is provided with a fixed fork, a clamping mechanism and a first driving mechanism, the output end of the first driving mechanism is connected to the fixed fork, the clamping mechanism includes a base, a support column, a claw and a second driving device, the base is rotatably connected to the fixed base, one end of the support column protrudes from the surface of the base, and the other end passes through the base and is connected to the second driving device, one end of the claw is connected to the support column, the middle part of the claw is hinged to the base, and a flipping device is provided under the base, the flipping device includes a pushing block and a third driving device, and the height of the pushing block gradually increases along the axis direction of the fixed base.

[0006] Furthermore, it also includes a conveying device for conveying the brake shoe workpiece to the base, the pushing block is connected to the conveying device, and the conveying device is a third driving device, which drives the pushing block to move.

[0007] Furthermore, the third driving device may be a cylinder or a hydraulic cylinder, which drives the push block to move via a cylinder or hydraulic cylinder bracket, and the push block is slidably connected to the frame.

[0008] Furthermore, after the fixing fork clamps the rib plate of the brake shoe, the side end of the fixing fork contacts the reinforcing rib of the brake shoe, thereby strengthening the fixation of the fixing fork to the brake shoe.

[0009] Furthermore, a bottom plate is provided at the bottom of the fixed base, and after the fixed fork clamps the rib plate of the brake shoe, the bottom of the support column or the output end of the second drive device contacts the bottom plate.

[0010] Furthermore, the support columns and the clamping claws are respectively provided in four groups, and the four groups of the support columns and the clamping claws are respectively located on both sides of the center line of the base.

[0011] Furthermore, a gap is provided between the upper end of the base and the fixed base.

[0012] Furthermore, the connection point for the base to rotate is located at the upper part of the base.

[0013] Furthermore, it also includes a PLC controller, and the first driving mechanism, the second driving device and the third driving device are electrically connected to the PLC controller.

[0014] The beneficial effects of the present invention are as follows: the shoe plate of the brake shoe is clamped and fixed by the clamping mechanism, and then the base of the clamping mechanism is pushed to rotate 90° by the pushing block of the flipping mechanism, so that the rib plate of the brake shoe faces upward, and the first driving mechanism drives the fixing fork to move toward the base direction of the clamping mechanism, so that the fixing fork clamps the rib plate of the brake shoe, and the brake shoe is fixed, which facilitates the milling tool to mill the two sides of the shoe plate of the brake shoe. The present invention has a reasonable design and is easy to use, which is conducive to realizing the automatic clamping of the brake shoe, and the brake shoe is firmly fixed, which improves the production efficiency and is conducive to ensuring the processing quality of the brake shoe. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the present invention.

[0016] Figure 2 It is the front view of the present invention.

[0017] Figure 3 yes Figure 2 Schematic diagram of the structure of the clamping brake shoe.

[0018] Figure 4 It is a side view of the present invention.

[0019] Figure 5 yes Figure 3 Schematic diagram of the mechanism for flipping the base 90°.

[0020] Description of reference numerals: 1——rotating shaft, 2——fixed base, 3——fixed fork, 4——clamping mechanism, 401——base, 402——support column, 403——claw, 404——second driving device, 405——bottom plate, 5——first driving mechanism, 6——turning device, 601——pushing block, 602——third driving device, 7——brake shoe, 701——rib plate, 702——reinforcing rib, 703——shoe plate. DETAILED DESCRIPTION

[0021] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments, but the implementation scope of the present invention is not limited thereto.

[0022] It should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0023] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] like Figure 1-Figure 5As shown, a side milling processing device of a shoe plate 703 of a brake shoe of this embodiment comprises a rotating shaft 1 and a fixed base 2, wherein the rotating shaft 1 and the fixed base 2 are coaxial, and the axis is arranged horizontally, the fixed base 2 is fixedly connected to the rotating shaft 1, the fixed base 2 is provided with a fixed fork 3, a clamping mechanism 4 and a first driving mechanism 5, the first driving mechanism 5 can be a cylinder or a hydraulic cylinder or other mechanism that can drive the fixed fork 3 to move, the output end of the first driving mechanism 5 is hinged or fixedly connected to the fixed fork 3 through a connecting component, and the first driving mechanism 5 drives the fixed fork 3 to move toward the clamping mechanism The structure 4 moves, the fixed fork 3 clamps the rib 701 of the brake shoe 7, so as to fix the brake shoe 7, and the connecting component at the output end of the first driving mechanism 5 is slidably connected with the fixed base 2; the clamping mechanism 4 includes a base 401, a support column 402, a claw 403 and a second driving device 404, the base 401 is rotatably connected with the fixed base 2, and the second driving device 404 is preferably a micro motor, one end of the support column 402 protrudes from the surface of the base 401, and the other end passes through the base 401 and is connected to the second driving device 404, one end of the claw 403 The support column 402 is connected to the claw 403, and the connection between the claw 403 and the support column 402 can be hinged or contact-type active connection. The middle part of the claw 403 is hinged to the base 401. The support column 402 is used to drive the claw 403 to move, so that the claw 403 clamps and fixes the two ends of the shoe plate 703 of the brake shoe 7. At the same time, the support column 402 can be used to support the outer side of the shoe plate 703 of the brake shoe 7 to achieve the positioning of the brake shoe 7, which is convenient for the fixing fork 3 to clamp and fix the brake shoe 7 firmly. A flip device 6 is arranged under the base 401, and the flip device 6 includes a push block 601 and the third driving device 602, along the axial direction of the fixed base 2, the height of the pushing block 601 gradually increases, that is, the pushing block 601 is wedge-shaped or has an arc-shaped surface protruding outward, and the height is lowest at one end close to the base 401. After the clamping mechanism 4 clamps the brake shoe 7 workpiece, the flipping device 6 is used to push the base 401 to flip, so that the rib plate 701 of the brake shoe 7 faces upward, which is convenient for the fixing fork 3 to move the rib plate 701, thereby fixing the brake shoe 7, and making the two side surfaces of the brake shoe 7 perpendicular to the horizontal plane, which is convenient for the milling tool to mill the two sides of the shoe plate 703 of the brake shoe 7.

[0025] The working principle of the present invention is: a workpiece to be processed is placed on the side of the sensing base 401 through an induction device such as a proximity switch, and the induction device drives the second driving device 404 to move, or the second driving device 404 is manually started to move, and the second driving device 404 drives the support column 402 to move, and the support column 402 drives the claw 403 to move synchronously, so that the shoe plate 703 of the brake shoe 7 is fixed above the base 401; when the pushing block 601 of the turning device 6 approaches the base 401, under the action of the pushing block 601, the base 401 can drive the brake shoe 7 to synchronously turn 90° to the position where the rib plate 701 is on the top; the first driving mechanism 5 drives the fixing fork 3 to move, so that the fixing fork 3 of the fixing fork 3 clamps the rib plate 701 of the brake shoe 7, thereby fixing the brake shoe 7; when the driving device drives the rotating shaft 1 to rotate, the third driving device 602 drives the pushing block 601 to reset, and then the rotating shaft 1 and the fixed base 2 rotate, so that the milling tool can process the two sides of the brake shoe 7.

[0026] It also includes a conveying device, which is used to convey the brake shoe 7 workpiece to the base 401, and the push block 601 is connected to the conveying device, that is, the third driving device 602 is the conveying device. Or a platform is set below the clamping mechanism 4, and the brake shoe 7 is positioned by the platform, so that the center line of the brake shoe 7 and the center line of the base 401 are located in the same horizontal plane, thereby ensuring that the distances of the two sides of the brake shoe 7 extending from the two sides of the base 401 are consistent, and the processing accuracy of the brake shoe 7 is ensured; the third driving device 602 is a cylinder or a hydraulic cylinder. After the clamping mechanism 4 clamps and fixes the shoe plate 703 of the brake shoe 7 above the base 401, the conveying device reverses the conveying or the third driving device 602 is actuated to drive the push block 601 to move in the direction close to the base 401. Under the action of the push block 601, the base 401 is flipped 90 degrees, so that the rib plate 701 of the brake shoe 7 is located above, which is convenient for the fixing fork 3 to move the rib plate 701.

[0027] Preferably, there are two fixing forks 3, which are used to clamp the two ends of the rib plate 701 to enhance the firmness of the fixation. After the fixing fork 3 clamps the rib plate 701 of the brake shoe 7, the side end of the fixing fork 3 contacts the reinforcing rib 702 of the brake shoe 7, which can enhance the firmness of the brake shoe 7 in the circumferential direction of the fixing base 2. From the bottom of the fork of the fixing fork 3 to the open end, the inner wall of the fixing fork 3 gradually tilts outward, and the first driving mechanism 5 drives the fixing fork 3 to move toward the brake shoe 7, so that the fixing fork 3 clamps and fixes the rib plate 701 of the brake shoe 7. Preferably, the fixing fork 3 is a two-horn or single-horn ram's horn fork. When the clamping mechanism 4 drives the brake shoe 7 to flip 90°, the inner sides of the two ends of the rib plate 701 of the brake shoe 7 contact the fixing base 2 or the pad on the fixing base 2, which facilitates the fixing fork 3 to work with the fixing base 2 or the pad on the fixing base 2 to achieve the fixation of the brake shoe 7.

[0028] The fixing base 2 is provided with a guiding device, which is used to support the fixing fork 3 and guide. Preferably, the guiding device is a sleeve or a slider, which is helpful to ensure that the fixing fork 3 clamps and fixes the brake shoe.

[0029] The base 401 is provided with a bottom plate 405, and the bottom plate 405 is fixedly connected to the base 401. After the clamping mechanism 4 drives the brake shoe 7 to rotate until the rib plate 701 faces upward, when the fixing fork 3 presses the brake shoe 7 toward the base 401, the bottom of the support column 402 or the connecting part at the bottom of the support column 402 can contact with the bottom plate 405. Under the joint action of the fixing fork 3, the support column 402 and the bottom plate 405, the firmness of the fixation of the brake shoe 7 is guaranteed, and it is also beneficial to reduce the supporting effect of the second driving device 404 on the support column 402 during milling, thereby protecting the second driving device 404.

[0030] The support columns 402 and the clamping claws 403 are respectively provided in four groups, and the four groups of the support columns 402 and the clamping claws 403 are respectively located on both sides of the center line of the base 401, and the two sides of the center line of the shoe plate 703 of the brake shoe 7 are respectively supported by the four support columns 402. Meanwhile, the four groups of clamping claws 403 and two groups of the two ends of the shoe plate 703 of the brake shoe 7 are respectively provided, which is beneficial to ensure the firmness of the shoe plate 703 of the brake shoe 7.

[0031] The width of the base 401 is smaller than the width of the shoe plate 703 of the brake shoe 7 , so that the two sides of the shoe plate 703 protrude from the two sides of the base 401 , thereby facilitating the milling of the two sides of the shoe plate 703 by the milling tool.

[0032] A gap is provided between the upper end of the base 401 and the fixed base 2, so that the base 401 and the brake shoe 7 can be flipped 90°. After the brake shoe 7 is flipped 90°, the two ends of the rib plate 701 of the brake shoe 7 can contact the fixed base 2 or the pad on the fixed base 2, and at the same time, a gap is formed between the fixed shoe plate 703 and the circumference of the fixed base 2, so that the milling tool can mill the side of the shoe plate 703 of the brake shoe 7.

[0033] The rotation connection point of the base 401 is located at the upper part of the base 401, that is, the connection point is located at a position slightly above the midline of the base 401, so that the pushing block 601 can push the base 401 to flip; at the same time, when the milling of both sides of the shoe plate 703 of the brake shoe 7 is completed, the fixing fork 3 moves away from the brake shoe 7 under the action of the first driving mechanism 5, and releases the brake shoe 7, so that under the action of eccentricity and gravity, the base 401 and the brake shoe 7 automatically rotate, so that the second driving device 404 drives the support column 402 to act, so that the claw 403 releases the brake shoe 7.

[0034] It also includes a PLC controller, and the first driving mechanism 5, the second driving device 404 and the third driving device 602, and the sensing device are electrically connected to the PLC controller.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention, rather than to limit the scope of protection of the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the present invention.

Claims

1. A brake shoe side milling device, characterized in that: The invention comprises a rotating shaft (1) and a fixed base (2), wherein the fixed base (2) is connected to the rotating shaft (1), the fixed base (2) is provided with a fixed fork (3), a clamping mechanism (4) and a first driving mechanism (5), the output end of the first driving mechanism (5) is connected to the fixed fork (3), the clamping mechanism (4) comprises a base (401), a support column (402), a clamping claw (403) and a second driving device (404), the base (401) is rotatably connected to the fixed base (2), the support column (402) ) one end protrudes from the surface of the base (401), and the other end passes through the base (401) and is connected to the second driving device (404), one end of the claw (403) is connected to the support column (402), and the middle part of the claw (403) is hinged to the base, and a flipping device (6) is arranged under the base (401), and the flipping device (6) includes a pushing block (601) and a third driving device (602), and the height of the pushing block (601) gradually increases along the axial direction of the fixed base (2).

2. The brake shoe side milling processing device according to claim 1 is characterized in that: It also includes a conveying device for conveying the brake shoe workpiece to the base (401), and the pushing block (601) is connected to the conveying device.

3. The brake shoe side milling processing device according to claim 1, characterized in that: After the fixing fork (3) clamps the rib plate (701) of the brake shoe (7), the side end of the fixing fork (3) contacts the reinforcing rib (702) of the brake shoe (7).

4. The brake shoe side milling processing device according to claim 1, characterized in that: A bottom plate (405) is provided at the bottom of the fixed base (2), and after the fixed fork (3) clamps the rib plate (701) of the brake shoe (7), the bottom of the support column (402) or the output end of the second drive device (404) contacts the bottom plate (405).

5. The brake shoe side milling processing device according to claim 1, characterized in that: The support columns (402) and the clamping claws (403) are respectively provided in four groups, and the four groups of the support columns (402) and the clamping claws (403) are respectively located on both sides of the center line of the base (401).

6. The brake shoe side milling processing device according to claim 1, characterized in that: A gap is provided between the upper end of the base (401) and the fixed base (2).

7. The brake shoe side milling processing device according to claim 1, characterized in that: The rotation connection point of the base (401) is located at the upper part of the base (401).

8. The brake shoe side milling processing device according to claim 1, characterized in that: It also includes a PLC controller, and the first drive mechanism (5), the second drive device (404) and the third drive device (602) are electrically connected to the PLC controller.

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