Brake shoe half hole milling machine

Abstract

The present invention discloses a special machine for milling half holes of brake shoes in the field of brake shoe punching, comprising a workbench with a power part, a punching head, a clamping plate, a bottom supporting plate, a compression part, a rotating plate, and a plurality of pressure plates, wherein the end of the pressure plate is pressed against the brake shoe, and the top surface of the bottom supporting plate is slidably matched with an adsorption plate for adsorbing debris on the pressure plate, and the adsorption plate is located below the brake shoe; when the compression part drives the plurality of pressure plates to move toward the middle at the same time, the pressure plates are made to shake at the same time, so as to facilitate the reciprocating adsorption plates to adsorb the limiting part of the pressure plates; in the present application, the contact position between the pressure plate and the brake shoe is retracted and cleaned, and after the cleaning is completed, the brake shoe is easily re-placed to avoid debris on the bottom of the next brake shoe after it is placed, and the bottom supporting method of the brake shoe and the pressure plate is used, which effectively reduces the influence of the debris on the next brake shoe.

Description

Technical Field

[0001] The invention relates to the technical field of brake shoe punching structures, in particular to a brake shoe half-hole milling machine. Background Art

[0002] The brake shoe is a key component in the braking system of a car or motorcycle, especially in drum brakes. It bears the thrust from the actuator, the normal force and tangential force of the brake drum, and the support reaction force. The brake shoe not only needs to have sufficient strength and rigidity, but also a stable friction coefficient, good wear resistance, heat resistance and heat dissipation, as well as sufficient heat capacity.

[0003] During the punching process of the existing punching machine for brake shoes, debris is scattered all around. When the punched brake shoe is taken down and replaced with the next brake shoe for continuous operation, the scattered debris is easily moved and the bottom surface of the next brake shoe is contaminated with debris, affecting the accuracy of the fixing position of the next brake shoe, thereby affecting the accuracy of the punching.

[0004] Therefore, we propose a special machine for milling half holes of brake shoes. Summary of the invention

[0005] The purpose of the present invention is to provide a special machine for milling half holes of brake shoes to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides a special machine for milling half holes of brake shoes, including a workbench with a power part, a punching head is connected to the workbench through the power part, and a plurality of clamping plates that are movably provided on the workbench and are clamped and fixed with the brake shoes; it also includes a bottom support plate that is connected and fixed to the workbench, a compression part is movably matched in the middle of the bottom support plate, a rotating plate is fixedly connected to the compression part, and a plurality of pressure plates are reciprocatingly provided on the side of the bottom support plate through the compression part, the end of the pressure plate is pressed against the brake shoe, and an adsorption plate for adsorbing debris on the pressure plate is slidably matched on the top surface of the bottom support plate, and the adsorption plate is located below the brake shoe; a limiting part, the limiting part is used to make the pressure plates shake at the same time when the compression part drives the plurality of pressure plates to move toward the middle at the same time, so as to facilitate the reciprocating adsorption plate to adsorb the pressure plates.

[0007] Preferably, the limiting member includes a limiting column, a sliding groove that slidably cooperates with the pressure plate is opened on the side of the bottom support plate, a limiting groove that slidably cooperates with the limiting column is opened at the bottom of the pressure plate, and a plurality of fixed blocks that press against the brake shoe are inserted and fixed on the bottom support plate.

[0008] Preferably, the limiting groove includes two straight grooves and an S-shaped connecting groove, and both ends of the connecting groove are connected to the straight grooves.

[0009] Preferably, a sleeve that slides with the limit groove is fixedly connected in the sliding groove, the limit column is movably sleeved in the sleeve, the limit column and the sleeve are pressed and fitted by an elastic member, and the straight groove and the connecting groove are provided with a plurality of balls that are distributed in gaps and movably fit with the top end of the limit column.

[0010] Preferably, the limiting member also includes a hollow sliding rod which is obliquely distributed and fixedly connected to the rotating plate, a sleeve is slidably fitted on the hollow sliding rod, a connecting plate which penetrates into the sliding groove and is fixedly connected to the pressure plate is fixedly connected to the outer surface of the sleeve, a connecting through rod is fixedly connected to the top end of the hollow sliding rod, the connecting through rod is plugged into the adsorption plate, a rotating groove which is connected to the sliding groove is formed on the top surface of the bottom support plate, and the adsorption plate rotates in the rotating groove.

[0011] Preferably, the compression member comprises a fixed cylinder connected and fixed to the workbench, a movable hollow rod connected and fixed to the rotating plate is connected in the fixed cylinder via a compression spring, and an operating plate is rotatably connected to the end of the movable hollow rod.

[0012] Preferably, a plurality of inclined air guide plates are fixedly connected to the rotating plate, and the air guide plates cooperate with the sliding grooves and the top surface of the bottom support plate to increase the efficiency of handling debris.

[0013] Preferably, a dust suction device is provided in the workbench, the adsorption pipe of the dust suction device is connected with the fixed cylinder, and the movable hollow rod is connected and fixed with the hollow sliding rod, so that the adsorption plate adsorbs debris.

[0014] Preferably, the clamping plate is fixedly connected with an arc-shaped clamping plate for easy fixation, and the arc-shaped clamping plate is used to support the pressure plate. The bottom of the bottom support plate is provided with a plurality of through grooves connected with the sliding grooves for easy cleaning of debris.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] In the present application, the contact position between the pressure plate and the brake shoe is retracted and cleaned, which facilitates the re-placement of the brake shoe after cleaning, avoiding the presence of debris at the bottom of the next brake shoe after placement, and the support method of the brake shoe and the pressure plate is used, which effectively reduces the influence of debris on the next brake shoe and ensures the punching accuracy of the brake shoe. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 It is a schematic diagram of the overall structure of the present invention;

[0019] Figure 3It is a schematic diagram of the matching structure between the brake shoe and the bottom support plate of the present invention;

[0020] Figure 4 It is a schematic diagram of the split structure of half brake shoe and bottom support plate of the present invention;

[0021] Figure 5 It is a schematic diagram of the disassembled structure of the entire brake shoe and the bottom support plate of the present invention;

[0022] Figure 6 This is a schematic diagram of the bottom support plate and its internal structure of the present invention;

[0023] Figure 7 It is a schematic diagram of the cross-sectional structure of the bottom support plate of the present invention;

[0024] Figure 8 It is a bottom view schematic diagram of the cross-sectional structure of the bottom support plate of the present invention;

[0025] Fig. 9 It is a schematic diagram of the split structure of the bottom supporting plate and the pressure plate of the present invention;

[0026] Fig.10 It is a schematic diagram of the split structure of the rotating plate and the pressing plate of the present invention;

[0027] Fig.11 It is a schematic diagram of the structure of the limiting groove of the present invention.

[0028] In the figure: 1. workbench; 2. punch head; 3. clamping plate; 4. bottom support plate; 5. rotating plate; 6. pressure plate; 7. adsorption plate; 8. limiting column; 9. sliding groove; 10. fixed block; 11. straight groove; 12. connecting groove; 13. sleeve; 14. ball bearing; 15. hollow sliding rod; 16. sleeve; 17. connecting plate; 18. connecting rod; 19. rotating groove; 20. fixed cylinder; 21. movable hollow rod; 22. operating panel; 23. air guide plate; 24. arc-shaped clamping plate; 25. through groove. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] See also Figure 1-Figure 11The present invention provides a special machine for milling half holes of brake shoes, comprising a workbench 1 with a power part, a punch head 2 is connected to the workbench 1 through the power part, and a plurality of clamping plates 3 that are clamped and fixed to the brake shoes are movably provided on the workbench 1; a bottom supporting plate 4 that is connected and fixed to the workbench 1 is also included, a compression part is movably matched in the middle of the bottom supporting plate 4, a rotating plate 5 is fixedly connected to the compression part, and a plurality of pressure plates 6 are reciprocated on the sides of the bottom supporting plate 4 through the compression part, and the ends of the pressure plates 6 are pressed against the brake shoes, and an adsorption plate 7 that adsorbs the debris on the pressure plates 6 is slidably matched on the top surface of the bottom supporting plate 4, and the adsorption plate 7 is located below the brake shoes; a limiting member, the limiting member is used to make the pressure plates 6 shake at the same time when the compression member drives the plurality of pressure plates 6 to move toward the middle at the same time, so as to facilitate the reciprocating adsorption plates 7 to adsorb the pressure plates 6;

[0031] In the present application, the power part includes a telescopic device and a punching device. The telescopic device is used to gradually bring the punch head 2 closer to the brake shoe, while the punching device causes the punch head 2 to rotate at high speed, thereby completing the hole opening work. Both are conventional technologies.

[0032] First, place the brake shoe on the bottom support plate 4, with the edge of the brake shoe located at the edge of the bottom support plate 4, that is, the edge of the brake shoe is located at the edge of the pressure plate 6 (in the initial state, the edge of the pressure plate 6 extends out of a portion of the edge of the bottom support plate 4, and the extended portion is used to place the brake shoe);

[0033] Then, the two arc-shaped clamping plates 3 are moved along the workbench 1 by the air pressure device, thereby clamping the brake shoe between the two clamping plates 3;

[0034] Then, the high-speed rotating punch head 2 is moved downward by the power part to complete the opening operation of the brake shoe;

[0035] Then loosen the clamping plate 3 and take the processed brake shoe. During the taking process, the easily movable debris will easily fall into the edge of the pressure plate 6 (the next brake shoe will be placed at this position for opening the hole);

[0036] Then press the compression member to make the rotating plate 5 move downward and rotate at the same time, so that the multiple pressing plates 6 move toward the middle, so that the edge of the pressing plate 6 moves toward the adsorption plate 7. When the edge of the pressing plate 6 moves to the corresponding position of the adsorption plate 7, the adsorption plate 7 reciprocates on the edge of the pressing plate 6, and at the same time, the pressing plate 6 reciprocates under the action of the limiter, and the two cooperate with each other, so that the adsorption plate 7 can more fully adsorb the debris on the pressing plate 6.

[0037] And some debris falls from the through slot 25;

[0038] Finally, release the compression member, so that the edge of the pressing plate 6 extends out of the edge of the bottom support plate 4 again, and the next brake shoe is placed on the extended part of the pressing plate 6, and then fixed by the clamping plate 3, and punching is performed;

[0039] The punching of the brake shoe is completed in a reciprocating and flowing manner.

[0040] This method retracts the contact position between the pressure plate 6 and the brake shoe and cleans it. After cleaning, it is easy to re-place the brake shoe to avoid debris on the bottom of the next brake shoe after it is placed. Moreover, through the bottom supporting method of the brake shoe and the pressure plate 6, this method effectively reduces the influence of debris on the next brake shoe.

[0041] The limiting member includes a limiting column 8 (the end of the limiting column 8 is a rectangular structure), a sliding groove 9 is opened on the side of the bottom support plate 4 to slide with the pressure plate 6, a limiting groove is opened at the bottom of the pressure plate 6 to slide with the limiting column 8, and a plurality of fixing blocks 10 are inserted and fixed on the bottom support plate 4 to press with the brake shoe;

[0042] The limiting groove includes two straight grooves 11 and an S-shaped connecting groove 12, and both ends of the connecting groove 12 are connected to the straight groove 11;

[0043] Through the compression piece, the rotating plate 5 is moved downward, so that the pressure plate 6 moves along the sliding groove 9. At this time, the straight groove 11 is slidably matched with the limiting column 8. When the limiting column 8 is slidably matched with the S-shaped connecting groove 12, the rotating plate 5 continues to move downward and rotates back and forth rapidly, so that the movable pressure plate 6 reciprocates at a certain angle in the horizontal direction, and cooperates with the reciprocating self-rotating adsorption plate 7, so that the adsorption plate 7 and the pressure plate 6 cooperate with each other to increase the cleaning efficiency.

[0044] A sleeve 13 is fixedly connected in the sliding groove 9 and is slidably matched with the limit groove. The limit column 8 is movably sleeved in the sleeve 13 (with a rectangular cross section). The limit column 8 and the sleeve 13 are pressed and matched by an elastic member. A plurality of balls 14 are arranged on the straight groove 11 and the connecting groove 12 and are movably matched with the top of the limit column 8.

[0045] When the limiting column 8 is slidably matched with the straight groove 11 and the connecting groove, due to the cooperation of the ball 14, the elastic member and the sleeve 13, the pressing plate 6 has a certain shaking effect in the vertical direction when it moves, which is helpful to deal with the debris on the pressing plate 6;

[0046] It is worth noting that the height of the movable groove is slightly greater than the thickness of the pressing plate 6 , so that the pressing plate 6 has a certain space to shake.

[0047] The limiting member also includes a hollow sliding rod 15 which is obliquely distributed and connected and fixed to the rotating plate 5. A sleeve 16 is slidably matched on the hollow sliding rod 15. A connecting plate 17 which penetrates into the sliding groove 9 and is connected and fixed to the pressing plate 6 is fixedly connected to the outer surface of the sleeve 16. A connecting rod 18 is fixedly connected to the top of the hollow sliding rod 15. The connecting rod 18 is plugged and matched with the adsorption plate 7. A rotating groove 19 which is connected to the sliding groove 9 is opened on the top surface of the bottom support plate 4. The adsorption plate 7 rotates in the rotating groove 19.

[0048] When the rotating plate 5 moves downward, it drives the inclined hollow slide bar 15 to move, and the sleeve 16 slides adaptively along the hollow slide bar 15 (the vertical height of the pressing plate 6 remains unchanged, under the restriction of the sliding groove 9), thereby driving the pressing plate 6 to move toward the middle along the sliding groove 9;

[0049] When the pressing plate 6 moves along the sliding groove 9, under the action of the limiting rod and the connecting groove 12, the pressing plate 6 rotates, so that the connecting plate 17 tilts, and the rotating plate 5 reciprocates at a certain angle.

[0050] The compression member includes a fixed cylinder 20 connected and fixed to the workbench 1, a movable hollow rod 21 connected and fixed to the rotating plate 5 is connected to the fixed cylinder 20 through a compression spring, and an operating plate 22 is rotatably connected to the end of the movable hollow rod 21;

[0051] By pressing down the operating plate 22, the movable hollow rod 21 and the rotating plate 5 are moved downward, so that the pressure plate 6 moves along the sliding groove 9. When the pressure plate 6 rotates back and forth, the rotating plate 5 is driven to rotate, so that the movable hollow rod 21 rotates without affecting the operating plate 22. The operating plate 22 can be rotated or not, so as to facilitate operation.

[0052] Among them, it is worth noting that: a plurality of inclined air guide plates 23 are fixedly connected to the rotating plate 5, the air guide plates 23 cooperate with the sliding groove 9 and the top surface of the bottom support plate 4, and a plurality of through grooves 25 connected with the sliding groove 9 are opened at the bottom of the bottom support plate 4. The rotating plate 5 reciprocates at a certain angle and moves up and down, so that the reciprocating air guide plates 23 fan the air into the gap between the sliding groove 9 and the pressure plate 6 and the debris on the bottom support plate 4, which helps the movable debris to enter the through groove 25 and the adsorption plate 7 for easy collection.

[0053] A dust collecting device is provided inside the workbench 1, and the suction pipe of the dust collecting device is connected to the fixed cylinder 20, and the movable hollow rod 21 is connected and fixed to the hollow sliding rod 15;

[0054] Through the dust collection device (conventional vacuum cleaner, etc.), the debris is sequentially passed through the adsorption plate 7, the connecting rod 18, the hollow sliding rod 15, the movable hollow rod 21, the fixed cylinder 20, and finally enters the dust collection device;

[0055] It is worth noting that the connecting rod 18 is plugged into the adsorption plate 7, and the connecting rod 18 can move inside the adsorption plate 7, and the insertion depth is relatively large, so as to avoid the connection between the connecting rod 18 and the adsorption plate 7 being disconnected.

[0056] An arc-shaped clamping plate 24 is fixedly connected to the clamping plate 3. The arc-shaped clamping plate 24 is used to support the pressure plate 6. A plurality of through grooves 25 connected to the sliding groove 9 are opened at the bottom of the bottom supporting plate 4. When the brake shoe is fixed close to each other by the clamping plates 3, the arc-shaped clamping plate 24 supports the pressure plate 6 to ensure the stable bottom supporting effect of the pressure plate 6 on the brake shoe.

[0057] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0058] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. Special machine for milling half hole of brake shoe, including: A workbench (1) with a power part, the workbench (1) being connected to a punch head (2) via the power part, and the workbench (1) being movably provided with a plurality of clamping plates (3) that are clamped and fixed to the brake shoe; It is characterized by further comprising: A bottom support plate (4) connected and fixed to the workbench (1), the middle part of the bottom support plate (4) being movably matched with a compression member, a rotating plate (5) being fixedly connected to the compression member, a plurality of pressure plates (6) being reciprocatingly movable on the sides of the bottom support plate (4) through the compression member, the ends of the pressure plates (6) being pressed against the brake shoe, the top surface of the bottom support plate (4) being slidably matched with an adsorption plate (7) for adsorbing debris on the pressure plate (6), the adsorption plate (7) being located below the brake shoe; A limiting member, the limiting member is used to make the pressing plates (6) shake simultaneously when the compression member drives the plurality of pressing plates (6) to move toward the middle simultaneously, so as to facilitate the reciprocating adsorption plate (7) to adsorb the pressing plates (6); The limiting member comprises a limiting column (8), a sliding groove (9) for slidingly cooperating with the pressure plate (6) is provided on the side of the bottom support plate (4), a limiting groove for slidingly cooperating with the limiting column (8) is provided on the bottom of the pressure plate (6), and a plurality of fixing blocks (10) for pressingly cooperating with the brake shoe are plugged and fixed on the bottom support plate (4); The compression member comprises a fixed cylinder (20) connected and fixed to the workbench (1), a movable hollow rod (21) connected and fixed to the rotating plate (5) is connected inside the fixed cylinder (20) via a compression spring, and an end of the movable hollow rod (21) is rotatably connected to an operating plate (22); The limiting groove comprises two straight grooves (11) and an S-shaped connecting groove (12), and both ends of the connecting groove (12) are connected to the straight groove (11); A sleeve (13) is fixedly connected in the sliding groove (9) and is slidably matched with the limiting groove. The limiting column (8) is movably sleeved in the sleeve (13). The limiting column (8) and the sleeve (13) are pressed and matched by an elastic member. The straight groove (11) and the connecting groove (12) are provided with a plurality of balls (14) distributed in gaps and movably matched with the top end of the limiting column (8). The limiting member also includes a hollow sliding rod (15) which is distributed obliquely and connected and fixed to the rotating plate (5); a sleeve (16) is slidably matched on the hollow sliding rod (15); a connecting plate (17) which penetrates into the sliding groove (9) and is connected and fixed to the pressure plate (6) is fixedly connected to the outer surface of the sleeve (16); a connecting rod (18) is fixedly connected to the top of the hollow sliding rod (15); the connecting rod (18) is plugged and matched with the adsorption plate (7); a rotating groove (19) which is connected to the sliding groove (9) is opened on the top surface of the bottom support plate (4); and the adsorption plate (7) rotates in the rotating groove (19).

2. The brake shoe half-hole milling machine according to claim 1 is characterized in that: A plurality of inclined air guide plates (23) are fixedly connected to the rotating plate (5), and the air guide plates (23) cooperate with the sliding grooves (9) and the top surface of the bottom support plate (4).

3. The brake shoe half-hole milling machine according to claim 1 is characterized in that: A dust suction device is provided inside the workbench (1); an adsorption pipe of the dust suction device is connected to the fixed cylinder (20); and the movable hollow rod (21) is connected and fixed to the hollow sliding rod (15).

4. The brake shoe half-hole milling machine according to claim 1 is characterized in that: The clamping plate (3) is fixedly connected to an arc-shaped clamping plate (24), and the arc-shaped clamping plate (24) is used to support the pressing plate (6). The bottom of the bottom supporting plate (4) is provided with a plurality of through grooves (25) connected to the sliding grooves (9).

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