Positioning structure for hole machining

Abstract

The utility model discloses a positioning structure for hole processing, which comprises a base and a pressing block, a placing disc is arranged on the base, two supporting components for supporting a brake shoe are arranged on the placing disc at intervals, and positioning components corresponding to the supporting components are arranged on the placing disc. The pressing block is placed above the brake shoe, and a limiting assembly used for limiting the pressing block is arranged on the placing disc. According to the device, the brake shoe can be effectively positioned and mounted, so that the mounting precision of the device on the brake shoe is effectively improved, and the machining precision of the brake shoe can be effectively improved when the brake shoe is machined.

Description

Technical Field

[0001] The utility model relates to the technical field of brake shoe processing, in particular to a positioning structure used for hole processing. Background Art

[0002] The brake shoe is the friction component of the drum brake. In addition to having the strength and rigidity required as a component, it should also have the highest and most stable friction coefficient possible, as well as appropriate wear resistance, heat resistance, heat dissipation and heat capacity. The brake shoe needs to be fixed during the processing process.

[0003] Due to the special shape of the brake shoe, it is inconvenient to position it when fixing it. The existing brake shoe fixing device often simply clamps the upper and lower ends to complete the fixation of the brake shoe. The positioning structure of the brake shoe is lacking, which leads to a decrease in the fixing accuracy of the brake shoe, thereby affecting the accuracy of subsequent processing. Utility Model Content

[0004] (1) Purpose of the utility model

[0005] In order to solve the technical problems existing in the background technology, the utility model proposes a positioning structure for hole processing, which can effectively position and install the brake shoe, thereby effectively improving the installation accuracy of the brake shoe by the device, thereby effectively improving the processing accuracy of the brake shoe when processing the brake shoe.

[0006] (2) Technical solution

[0007] The utility model provides a positioning structure for hole processing, comprising a base and a pressure block, the base being provided with a placement plate, the placement plate being provided with two support assemblies for supporting a brake shoe at intervals, the placement plate being provided with a positioning assembly corresponding to the support assembly, the pressure block being placed above the brake shoe, and the placement plate being provided with a limiting assembly for limiting the pressure block.

[0008] Preferably, the support assembly includes a plurality of support blocks, each of which is connected to the upper end of the placement plate, and the plurality of support blocks are arranged along the shape of the brake shoe, with the upper end of the support block being fitted with the bottom end of the brake shoe.

[0009] Preferably, the positioning assembly includes two mounting posts and a positioning rod, the two mounting posts are spaced apart on the placement plate, and two positioning rods with different diameters are respectively provided on the two mounting posts, and the outer ends of the two positioning rods are fitted with the brake shoe.

[0010] Preferably, the limiting assembly includes a mounting rod, a limiting ring and an auxiliary block, the placing plate is provided with a first through hole, the mounting rod is vertically arranged in the first through hole, the top of the mounting rod is provided with a pressure head, the pressure block is provided with a first through hole for the pressure head to pass through, the pressure block passes through the mounting rod and is located below the pressure head, the auxiliary block is located between the pressure block and the pressure head, and is placed above the pressure block, the auxiliary block is provided with a first notch for the mounting rod to be inserted, and the placing plate is provided with a driving unit for driving the mounting rod to move in the up and down directions, and the driving unit drives the pressure head to move downward to abut against the auxiliary block.

[0011] Preferably, the driving unit includes a transmission disk and a connecting ring, the transmission disk is arranged on the base and located below the placement disk, the transmission disk is connected to the bottom end of the placement disk through the connecting ring, and a cylinder is provided on the transmission disk, and the telescopic rod of the cylinder is vertically arranged upward and connected to the mounting rod.

[0012] Preferably, it also includes a motor and a rotating shaft, a first groove is provided on the base, the transmission disk is rotatably set in the first groove, the transmission disk, the connecting ring and the placement disk are coaxially arranged, the motor is connected to the bottom wall of the first groove, one end of the rotating shaft is coaxially connected to the output shaft of the motor, and the other end thereof is coaxially connected to the transmission disk.

[0013] Preferably, it further comprises a limiting ring, which is coaxially sleeved on the mounting rod, and the limiting ring is located below the pressing block and is fitted with the pressing block.

[0014] Compared with the prior art, the above technical solution of the present invention has the following beneficial technical effects:

[0015] In the utility model: the device can effectively position and install the brake shoe, thereby effectively improving the installation accuracy of the device on the brake shoe, and thus effectively improving the processing accuracy of the brake shoe when processing the brake shoe. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a structural schematic diagram of a positioning structure for hole machining proposed by the utility model.

[0017] Figure 2 This is a structural schematic diagram of a transmission disc in a positioning structure for hole machining proposed by the utility model.

[0018] Figure 3 This is a structural schematic diagram of a base in a positioning structure for hole processing proposed by the utility model.

[0019] Figure numerals: 1. base; 2. transmission plate; 3. connecting ring; 4. placement plate; 5. support block; 6. mounting column; 7. positioning rod; 8. mounting rod; 9. limiting ring; 10. pressure block; 11. auxiliary block; 12. pressure head; 13. cylinder; 14. motor; 15. rotating shaft. DETAILED DESCRIPTION

[0020] To make the objectives, technical solutions, and advantages of the present invention more clearly understood, the present invention is further described below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be understood that these descriptions are merely illustrative and are not intended to limit the scope of the present invention. Furthermore, descriptions of known structures and technologies are omitted in the following description to avoid unnecessary confusion regarding the concepts of the present invention.

[0021] In the description of the utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," "the other end," and the like, indicating positions or relationships, are based on the positions or relationships shown in the accompanying drawings and are intended solely to facilitate the description of the utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0022] In the description of the utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "connected," etc., should be understood in a broad sense. For example, "connected" can mean fixed connection, welding, riveting, bonding, etc., or detachable connection, threaded connection, key connection, pin connection, etc., or integral connection; it can be mechanical connection or electrical connection; it can be direct connection or indirect connection through an intermediate medium, or it can be internal communication between two components. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood by those skilled in the art in specific circumstances.

[0023] like Figure 1-3 As shown, the utility model proposes a positioning structure for hole processing, including a base 1 and a pressure block 10, the base 1 is provided with a placement plate 4, the placement plate 4 is provided with two support components for supporting the brake shoe, the placement plate 4 is provided with a positioning component corresponding to the support component, the pressure block 10 is placed above the brake shoe, and the placement plate 4 is provided with a limiting component for limiting the pressure block 10.

[0024] In the present invention, when the device needs to be used, the positioning of the brake shoe is completed by the positioning component, and the brake shoe is moved to the support component under the action of gravity to complete the support of the brake shoe. After completing the positioning and support of the brake shoe, the pressure block 10 is placed above the brake shoe, and the pressure block 10 is limited by the limiting component, so that the brake shoe can be effectively limited under the limitation of the support component and the pressure block 10, thereby completing the installation of the brake shoe. The device can effectively position and install the brake shoe, thereby effectively improving the installation accuracy of the device for the brake shoe, thereby effectively improving the processing accuracy of the brake shoe when processing the brake shoe.

[0025] In an optional embodiment, the support assembly includes a plurality of support blocks 5, and the plurality of support blocks 5 are connected to the upper end of the placement plate 4. The plurality of support blocks 5 are arranged along the shape of the brake shoe, and the upper end of the support block 5 is fitted with the bottom end of the brake shoe. The plurality of support blocks 5 can support multiple positions of the bottom surface of the brake shoe, thereby improving the stability of the support of the brake shoe.

[0026] In an optional embodiment, the positioning assembly includes two mounting columns 6 and a positioning rod 7, the two mounting columns 6 are spaced apart on the placement plate 4, and two positioning rods 7 of different diameters are respectively provided on the two mounting columns 6. The outer ends of the two positioning rods 7 are fitted with the brake shoe, and the positioning rod 7 is passed through the hole on the brake shoe to effectively complete the positioning of the brake shoe, and the positioning rod 7 is fitted with the inner wall of the brake shoe hole to effectively limit the brake shoe, thereby improving the stability of the brake shoe during installation.

[0027] In an optional embodiment, the limiting assembly includes a mounting rod 8, a limiting ring 9 and an auxiliary block 11, a first through hole is provided on the placement plate 4, the mounting rod 8 is vertically arranged in the first through hole, a pressure head 12 is provided at the top of the mounting rod 8, a first through hole for the pressure head 12 to pass through is provided on the pressure block 10, the pressure block 10 passes through the mounting rod 8 and is located below the pressure head 12, the auxiliary block 11 is located between the pressure block 10 and the pressure head 12, and is placed above the pressure block 10, a first notch is provided on the auxiliary block 11 for inserting the mounting rod 8, and a groove is provided on the placement plate 4 for driving the mounting rod 8. 8 is a driving unit that moves in the up and down directions, and the driving unit drives the pressure head 12 to move downward to abut against the auxiliary block 11. When the pressure block 10 needs to be limited, the pressure block 10 is passed through between the mounting rods 8, so that the pressure block 10 is fitted with the upper end of the brake shoe, and the auxiliary block 11 is inserted between the pressure block 10 and the pressure head 12 through the first notch, so that the mounting rod 8 is driven downward by the driving unit, thereby driving the pressure head 12 to move downward, and after the pressure head 12 moves downward, it abuts against the auxiliary block 11, so that the pressure block 10 is limited by the auxiliary block 11, and after limiting, the pressure block 10 cooperates with the support block 5 under the brake shoe to complete the fixation of the brake shoe.

[0028] In an optional embodiment, the driving unit includes a transmission disk 2 and a connecting ring 3. The transmission disk 2 is arranged on the base 1 and is located below the placement disk 4. The transmission disk 2 is connected to the bottom end of the placement disk 4 through the connecting ring 3. A cylinder 13 is provided on the transmission disk 2. The telescopic rod of the cylinder 13 is vertically upward and connected to the mounting rod 8. The transmission disk 2 and the placement disk 4 can be effectively connected through the connecting ring 3, and there is a gap between the transmission disk 2 and the placement disk 4 for mounting the cylinder 13. The mounting rod 8 can be effectively driven to move in the up and down directions through the cylinder 13, thereby driving the pressure head 12 to move downward, limiting the auxiliary block 11 and the pressure block 10, and under the action of the cylinder 13, the stability of the pressure block 10 when limiting can be improved.

[0029] In an optional embodiment, it also includes a motor 14 and a rotating shaft 15, a first groove is provided on the base 1, the transmission disc 2 is rotatably arranged in the first groove, the transmission disc 2, the connecting ring 3 and the placement disc 4 are coaxially arranged, the motor 14 is connected to the bottom wall of the first groove, one end of the rotating shaft 15 is coaxially connected to the output shaft of the motor 14, and the other end thereof is coaxially connected to the transmission disc 2, and the rotating shaft 15 is driven to rotate by the motor 14. The rotation of the rotating shaft 15 can effectively drive the transmission disc 2 connected thereto to rotate, and the rotation of the transmission disc 2 drives the connecting ring 3 and the placement disc 4 to rotate, so that the device can also drive the brake shoe to rotate after the brake shoe is installed, thereby improving the processing range of the device when processing the brake shoe after the brake shoe is installed.

[0030] In an optional embodiment, a limiting ring 9 is further included, which is coaxially sleeved on the mounting rod 8. The limiting ring 9 is located below the pressure block 10 and is arranged in close contact with the pressure block 10. The limiting ring 9 can provide support and installation for the pressure block 10 when the brake shoe is not installed on the device, thereby effectively avoiding the need to place the pressure block 10 elsewhere when it is not in use.

[0031] It should be understood that the above-described specific embodiments of the present invention are merely illustrative of or explanation of the principles of the present invention and do not constitute limitations of the present invention. Therefore, any modifications, equivalent substitutions, improvements, etc. made without departing from the spirit and scope of the present invention shall be included within the scope of protection of the present invention. In addition, the appended claims of the present invention are intended to cover all variations and modifications that fall within the scope and metes and bounds of the appended claims, or equivalents thereof.

Claims

1. A positioning structure for hole processing, characterized in that: The invention comprises a base (1) and a pressure block (10), wherein the base (1) is provided with a placement plate (4), two support assemblies for supporting a brake shoe are provided on the placement plate (4) at intervals, and a positioning assembly corresponding to the support assembly is provided on the placement plate (4), the pressure block (10) is placed above the brake shoe, and the placement plate (4) is provided with a limiting assembly for limiting the position of the pressure block (10).

2. A positioning structure for hole machining according to claim 1, characterized in that: The support assembly comprises a plurality of support blocks (5), each of the plurality of support blocks (5) being connected to the upper end of the placement plate (4), the plurality of support blocks (5) being arranged along the shape of the brake shoe, and the upper end of the support block (5) being fitted with the bottom end of the brake shoe.

3. A positioning structure for hole machining according to claim 1, characterized in that: The positioning assembly comprises two mounting columns (6) and a positioning rod (7), wherein the two mounting columns (6) are arranged on the placement plate (4) at intervals, and two positioning rods (7) with different diameters are respectively provided on the two mounting columns (6), and the outer ends of the two positioning rods (7) are arranged to fit the brake shoe.

4. A positioning structure for hole machining according to claim 1, characterized in that: The limiting assembly includes a mounting rod (8), a limiting ring (9) and an auxiliary block (11); a first through hole is provided on the placement plate (4); the mounting rod (8) is vertically arranged in the first through hole; a pressure head (12) is provided at the top end of the mounting rod (8); a first through hole for the pressure head (12) to pass through is provided on the pressure block (10); the pressure block (10) passes through the mounting rod (8) and is located below the pressure head (12); the auxiliary block (11) is located between the pressure block (10) and the pressure head (12) and is placed above the pressure block (10); a first notch for the mounting rod (8) to be inserted is provided on the auxiliary block (11); a driving unit for driving the mounting rod (8) to move in the up and down directions is provided on the placement plate (4); the driving unit drives the pressure head (12) to move downward to abut against the auxiliary block (11).

5. A positioning structure for hole machining according to claim 4, characterized in that: The drive unit comprises a transmission disc (2) and a connecting ring (3); the transmission disc (2) is arranged on the base (1) and is located below the placement disc (4); the transmission disc (2) is connected to the bottom end of the placement disc (4) via the connecting ring (3); a cylinder (13) is provided on the transmission disc (2); a telescopic rod of the cylinder (13) is vertically arranged upward and connected to the mounting rod (8).

6. A positioning structure for hole machining according to claim 5, characterized in that: The invention also includes a motor (14) and a rotating shaft (15). The base (1) is provided with a first groove. The transmission disc (2) is rotatably arranged in the first groove. The transmission disc (2), the connecting ring (3) and the placement disc (4) are coaxially arranged. The motor (14) is connected to the bottom wall of the first groove. One end of the rotating shaft (15) is coaxially connected to the output shaft of the motor (14), and the other end thereof is coaxially connected to the transmission disc (2).

7. A positioning structure for hole machining according to claim 4, characterized in that: It also includes a limiting ring (9), which is coaxially sleeved on the mounting rod (8), and the limiting ring (9) is located below the pressing block (10) and is arranged in close contact with the pressing block (10).

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