Automatic cutting equipment for drum brake shoe

Abstract

The invention discloses automatic cutting equipment for a drum type brake shoe, and belongs to the technical field of automobile accessory manufacturing, the automatic cutting equipment for the drum type brake shoe comprises a machining table and a machining bin located at the top of the machining table, one side of the interior of the machining bin is provided with a moving seat mechanism, and the other side of the interior of the machining bin is provided with an adjusting mechanism; a storage mechanism is arranged in the moving seat mechanism, and a clamping mechanism used for fixing the brake shoe is arranged in the storage mechanism. The two rotating rings are arranged, the drum-type brake shoe in one rotating ring is automatically inserted into the other rotating ring through the moving seat mechanism, and the drum-type brake shoe is fixed through the clamping mechanism, so that the part, originally covered by the storage groove, of the outer side of the drum-type brake shoe can also be cut, and the machining efficiency is improved. And the position of the drum brake shoe in the storage groove does not need to be manually adjusted, so that the machining efficiency of the automatic cutting equipment for the drum brake shoe is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of automobile parts manufacturing, and in particular relates to automatic cutting equipment for drum brake shoes. Background Art

[0002] Drum brake shoes are key components in drum brake systems. When the driver steps on the brake pedal, the master brake cylinder transmits pressure to the brake slave cylinder through the hydraulic or pneumatic system. The brake slave cylinder pushes the brake shoe to open outward around the support pin, so that the friction lining on the brake shoe is in close contact with the inner surface of the rotating brake drum, generating friction, thereby preventing the rotation of the brake drum and achieving vehicle braking.

[0003] When cutting existing drum brake shoes, it is often necessary to manually fix all the drum brake shoes, which is a cumbersome process and affects the processing efficiency of the cutting equipment. After the drum brake shoes are clamped and fixed, only the exposed outer part of the drum brake shoes can be cut, and the position of the drum brake shoes needs to be manually readjusted to expose the clamped and fixed parts so that the entire surface of the drum brake shoes can be cut, which affects the processing efficiency of the cutting equipment. It is also necessary to manually remove the processed drum brake shoes one by one, which further reduces the processing efficiency of the cutting equipment. At the same time, the current cutting equipment can often only cut the outer ring of the drum brake shoe, and cannot cut the inner ring of the drum brake shoe, which reduces the use effect of the cutting equipment. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the disadvantages of the prior art and provide an automatic cutting device for drum brake shoes.

[0005] The technical solution adopted to solve the above technical problems is: automatic cutting equipment for drum brake shoes, including a processing table and a processing chamber located on the top of the processing table, a movable seat mechanism is arranged on one side inside the processing chamber, an adjustment mechanism is arranged on the other side inside the processing chamber, a placement mechanism is arranged inside the movable seat mechanism, and a clamping mechanism for fixing the brake shoe is arranged inside the placement mechanism, an outer ring cutting mechanism and an inner ring cutting mechanism for cutting processing are respectively arranged on one side of the adjustment mechanism, and a discharge mechanism is arranged at one end inside the processing chamber.

[0006] Furthermore, the movable seat mechanism includes two groups of square seats located inside the processing warehouse, four groups of fixed slide rods are commonly installed at both ends of the processing warehouse, and the four groups of fixed slide rods respectively pass through the four corners of the two groups of square seats, two groups of first electric push rods are symmetrically installed at both ends inside the processing warehouse, and the output ends of the two groups of first electric push rods at the same end are fixedly connected to the diagonals of an adjacent group of square seats, and a limit block for limiting the moving distance of an adjacent group of square seats is installed near the middle of the top of the processing warehouse.

[0007] Through the above technical solution, by controlling the extension of the first electric push rod, the two groups of square seats can be controlled to slide and move in the four groups of fixed slide rods, and the first group of square seats can be moved closer to or away from the second group of square seats, while the limit block will limit the distance that the second group of square seats moves toward the first group of square seats.

[0008] Furthermore, the storage mechanism includes a first bearing located in the middle position of the square seat, a rotating ring is installed on the inner ring of the first bearing, four groups of storage grooves for placing brake shoes are evenly opened at the edge position of the rotating ring, annular grooves are symmetrically opened at the center position of two groups of rotating rings away from one end, arc-shaped partitions are installed in the four groups of storage grooves of one group of rotating rings, and a driving device for driving the rotating ring to rotate is arranged on the top of one side of the square seat.

[0009] Through the above technical solution, after the drum brake shoe to be processed is inserted into the storage groove and fixed, the driving device is controlled to drive the rotating ring to rotate rapidly, which helps the first turning tool and the second turning tool to cut the exposed part of the drum brake shoe in the storage groove. The arc-shaped partition is located in the storage groove of the first group of rotating rings, which helps to limit the insertion depth of the drum brake shoe. The storage groove of the second group of rotating rings is not provided with an arc-shaped partition, so that the drum brake shoe can be moved from one end of the second group of rotating rings through the storage groove to the other end.

[0010] Furthermore, the driving device includes an annular rack located at one end of the outer side of the rotating ring, a first servo motor is installed on one side of the top of one end of the square seat, and a driving gear meshing with the annular rack is installed at the output end of the first servo motor.

[0011] Through the above technical solution, the first servo motor is controlled to drive the driving gear to rotate, and the transmission of the driving gear and the annular rack is utilized to drive the rotating ring to rotate rapidly. In order to allow the drum brake shoes in the first set of rotating rings to be accurately inserted into the second set of rotating rings, when the two sets of rotating rings stop rotating, the two sets of first servo motors are controlled to drive the two sets of rotating rings to stop rotating, so that the storage slots in the two sets of rotating rings can be aligned one by one.

[0012] Furthermore, the clamping mechanism includes a connecting rod inserted at the center position of the annular groove, an arc-shaped groove is opened at the inner ring position of the arc-shaped partition, four groups of movable rods are evenly inserted at the outer ring position of the annular groove, and the end of each group of movable rods extends into the arc-shaped groove and is installed with an arc-shaped extrusion plate that matches the arc-shaped groove, a connecting seat is installed at one end of the movable rod away from the arc-shaped extrusion plate, a hinged rod is hinged at one end of the connecting seat, and the ends of the four groups of hinged rods away from the connecting seat are hinged to the outer side of the connecting rod, a return spring is sleeved on the outer side of the movable rod, and the two ends of the return spring are fixedly connected to the connecting seat and the outer ring of the annular groove respectively, a second bearing is installed at one end of the outer side of the connecting rod away from the rotating ring, and a limiting ring is installed on the outer ring of the second bearing, and a protective shell covering the annular groove is installed at one end of the rotating ring.

[0013] Through the above technical scheme, after the drum brake shoe is inserted into the storage groove of the first group of rotating rings, the two groups of first electric push rods connected to the first group of rotating rings are controlled to shorten, so that one end of the connecting rod extends to the outside of the processing chamber, and the limit ring is against the inner wall of the processing chamber, and then the connecting rod pushes the movable rod away from the center position of the annular groove through the hinge rod and the connecting seat, and the movable rod pushes the arc extrusion plate in the arc groove to move, and the drum brake shoe is processed and fixed by using the arc extrusion plate and the inner wall of the storage groove. During the process, the return spring is shortened by force and stores elastic potential energy. When the limit ring no longer presses against the inner wall of the processing chamber, the elastic potential energy of the return spring will push the arc extrusion plate completely back into the arc groove, and the protective shell can completely cover the parts located in the annular groove to protect these parts.

[0014] Furthermore, the adjustment mechanism includes two groups of bidirectional screw rods located on one side of the interior of the processing chamber, and two groups of mounting seats are symmetrically threaded on the outer sides of the two groups of bidirectional screw rods. A driven gear is installed at one end of the outer sides of the two groups of bidirectional screw rods. A second servo motor is installed at one end of the interior of the processing chamber close to the driven gear, and a driving gear meshing with the driven gear is installed at the output end of the second servo motor.

[0015] Through the above technical scheme, the second servo motor is controlled to drive the driving gear to rotate, and the transmission of the driving gear and the driven gear is used to drive the two sets of bidirectional lead screws to rotate synchronously, and then the two sets of mounting seats are forced to move closer to or away from each other through the action of the thread, so that the two pairs of first turning tools and second turning tools can be accurately controlled to gradually and orderly cut the drum brake shoe.

[0016] Furthermore, the outer ring cutting mechanism includes a second electric push rod located in the middle position inside the mounting seat, a strip plate is installed at the output end of the second electric push rod, and movable sliding rods that pass through the mounting seat are symmetrically installed at the top and bottom of the inner side of the strip plate, and the first turning tool is symmetrically installed at one end of the outer side of the two groups of strip plates that are away from each other.

[0017] Through the above technical solution, the second electric push rod is controlled to extend so that the strip plate is located at the outer ring of the drum brake shoe. By controlling the extended length of the second electric push rod, the cutting depth of the first turning tool on the outer side of the drum brake shoe is controlled.

[0018] Furthermore, the inner ring cutting mechanism includes a third electric push rod installed on the inner side of the strip plate, the output end of the third electric push rod passes through the mounting seat and is installed with an L-shaped slide rod, and the end of the L-shaped slide rod close to the strip plate passes through the mounting seat and the strip plate and is installed with a fixed block, and the second turning tool is installed at one end of the inner side of the fixed block, and the two groups of strip plates are symmetrically provided with storage grooves that cooperate with the second turning tool at the middle position away from one end.

[0019] Through the above technical solution, the second electric push rod is controlled to extend so that the second turning tool is located in the inner circle of the drum brake shoe. Then, by controlling the shortened length of the third electric push rod, the cutting depth of the second turning tool on the inner side of the drum brake shoe can be accurately controlled. After the second electric push rod is fully retracted, the third electric push rod is controlled to extend to the longest position to push the L-shaped slide bar to move until the second turning tool enters the storage groove. In this way, the first turning tool and the second turning tool are moved away from between the two sets of rotating rings without affecting the movement of the two sets of rotating rings.

[0020] Furthermore, the discharge mechanism includes a limit plate located at one end inside the processing chamber, the limit plate is sleeved on the outside of an adjacent group of protective shells, and a discharge port is opened at the bottom of the limit plate, and an outer sleeve ring adapted to the storage groove is installed on the outside of one group of protective shells.

[0021] Through the above technical solution, after the third group of drum brake shoes are inserted into the storage groove of the second group of rotating rings, the first group of drum brake shoes originally located in the storage groove are completely pushed out. At this time, the first group of drum brake shoes are located in the chamber composed of the limit plate and the outer ring. Then the second group of rotating rings are controlled to rotate slowly for one circle, so that the drum brake shoes located outside the storage groove are affected by gravity and fall into the guide bin one by one through the discharge port.

[0022] Furthermore, a chamber door is provided on one side of the processing chamber, and a guide chamber and a collection chamber are provided on the inner top of the processing table.

[0023] Through the above technical solution, the operator can close the chamber door to prevent the chips generated by cutting from flying out from the processing chamber, while the guide chamber can guide the drum brake shoe that has been cut into a special collection box, and the collection chamber can collect the chips generated by cutting for subsequent centralized processing.

[0024] The beneficial effects of the present invention are as follows: (1) The present invention can automatically fix all drum brake shoes placed in the storage groove through the coordinated use of the storage mechanism and the clamping mechanism, and can also automatically release the fixing effect of the drum brake shoes, thereby helping to improve the processing efficiency of the entire automatic cutting equipment; (2) The present invention sets two groups of rotating rings, and uses a moving seat mechanism to allow the drum brake shoes in one group of rotating rings to be automatically inserted into the other group of rotating rings and fixed by the clamping mechanism. In this way, the outer portion of the drum brake shoe that was originally covered by the storage groove can also be cut and processed, without the need to manually adjust the position of the drum brake shoe in the storage groove, thereby improving the processing efficiency of the automatic cutting equipment for drum brake shoes; (3) The present invention uses a moving seat mechanism to move the drum brake shoes in the first group of rotating rings. The drum brake shoe is pushed into the second group of rotating rings. After two groups of drum brake shoes are inserted into the storage grooves of the second group of rotating rings, if a third group of drum brake shoes is inserted into the storage grooves of the second group of rotating rings, the first group of drum brake shoes originally located in the storage grooves can be completely pushed out. The drum brake shoes that have been cut and processed can be automatically discharged in conjunction with the discharge mechanism, thereby ensuring the processing efficiency of the automatic cutting equipment for drum brake shoes; (4) The present invention can freely cut the outer and inner sides of the drum brake shoe through the coordinated use of the adjustment mechanism, the outer ring cutting mechanism and the inner ring cutting mechanism, and can cooperate with the moving seat mechanism, the storage mechanism and the clamping mechanism to realize the cutting equipment automatically cutting the outer and inner sides of the drum brake shoe, thereby improving the use effect of the cutting equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a first perspective structural diagram of the present invention; Figure 2 It is a second viewing angle structural diagram of the present invention; Figure 3 It is a third perspective structural diagram of the present invention; Figure 4 is a top cross-sectional schematic diagram of the present invention; Figure 5 This is a first-view structural diagram of the processing chamber of the present invention; Figure 6 This is a second perspective structural diagram of the processing chamber of the present invention; Figure 7 This is a structural diagram of the movable seat mechanism and the storage mechanism of the present invention separated from each other from the first perspective; Figure 8 This is a structural diagram of the movable seat mechanism and the storage mechanism of the present invention separated from each other from a second viewing angle; Fig. 9 This is a structural diagram of the connection between the storage mechanism and the clamping mechanism of the present invention from a first perspective; Fig.10 This is a structural diagram of the connection between the storage mechanism and the clamping mechanism of the present invention from a second viewing angle; Fig.11 It is a structural schematic diagram of the clamping mechanism of the present invention; Fig.12 is a three-dimensional schematic diagram of the protective shell of the present invention; Fig.13 It is a structural diagram of the connection between the adjustment mechanism and two sets of cutting mechanisms of the present invention from a first perspective; Fig.14 It is a structural diagram from a second perspective of the connection between the adjustment mechanism and the two sets of cutting mechanisms of the present invention; Fig.15 It is a schematic structural diagram of the two cutting mechanisms of the present invention being fully retracted.

[0026] 1. Processing table; 2. Processing chamber; 3. Moving seat mechanism; 301. Fixed slide bar; 302. Square seat; 303. First electric push rod; 304. Limit stopper; 4. Storage mechanism; 401. First bearing; 402. Rotating ring; 403. Storage groove; 404. Annular groove; 405. Arc partition; 406. Driving device; 4061. First servo motor; 4062. Driving gear; 4063. Annular rack; 5. Clamping mechanism; 501. Arc groove; 502. Connecting rod; 503. Movable rod; 504. Arc extrusion plate; 505. Connecting seat; 506. Articulated rod; 507. Return spring; 508. First Second bearing; 509, limit ring; 510, protective shell; 6, adjustment mechanism; 601, bidirectional screw; 602, mounting seat; 603, driven gear; 604, second servo motor; 605, driving gear; 7, outer ring cutting mechanism; 701, second electric push rod; 702, strip plate; 703, movable slide rod; 704, first turning tool; 8, inner ring cutting mechanism; 801, L-shaped slide rod; 802, fixed block; 803, second turning tool; 804, third electric push rod; 805, storage slot; 9, discharge mechanism; 901, outer ring; 902, limit plate; 903, discharge port; 10, guide bin; 11, collection bin; 12, bin door. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0028] like Figure 1-Figure 2 and Figure 4-Figure 11As shown, the automatic cutting equipment for drum brake shoes of this embodiment includes a processing table 1 and a processing chamber 2 located on the top of the processing table 1, a moving seat mechanism 3 is arranged on one side of the processing chamber 2, and a placing mechanism 4 is arranged inside the moving seat mechanism 3, the moving seat mechanism 3 includes two groups of square seats 302 located inside the processing chamber 2, four groups of fixed slide bars 301 are installed at both ends of the processing chamber 2, and the four groups of fixed slide bars 301 respectively pass through the four corners of the two groups of square seats 302, two groups of first electric push rods 303 are symmetrically installed at both ends of the processing chamber 2, the output ends of the two groups of first electric push rods 303 at the same end are fixedly connected to the diagonal of the adjacent group of square seats 302, and a limited number of push rods 303 are installed at the top of the processing chamber 2 near the middle. A limit stopper 304 is provided to control the moving distance of an adjacent group of square seats 302. The storage mechanism 4 includes a first bearing 401 located at the middle position of the square seat 302. A rotating ring 402 is installed on the inner ring of the first bearing 401. Four groups of storage grooves 403 for placing brake shoes are evenly opened at the edge of the rotating ring 402. An annular groove 404 is symmetrically opened at the center position of the two groups of rotating rings 402 away from one end. An arc partition 405 is installed in the four groups of storage grooves 403 of a group of rotating rings 402. A driving device 406 for driving the rotating ring 402 to rotate is provided on the top of one side of the square seat 302. The driving device 406 includes an annular rack 4063 located at one end of the outer side of the rotating ring 402. The square seat 3 02 is installed with a first servo motor 4061 on one side of the top of one end, and a driving gear 4062 meshing with an annular rack 4063 is installed at the output end of the first servo motor 4061. After the drum brake shoe to be processed is inserted into the storage groove 403 and fixed, the driving device 406 is controlled to drive the rotating ring 402 to rotate quickly, which helps the first turning tool 704 and the second turning tool 803 to cut the exposed part of the drum brake shoe in the storage groove 403. The arc partition plate 405 is located in the storage groove 403 of the first group of rotating rings 402, which helps to limit the insertion depth of the drum brake shoe, control the shortening of the two groups of first electric push rods 303 connected to the first group of rotating rings 402, and make one side of the connecting rod 502 The end extends to the outside of the processing chamber 2, and the limit ring 509 is against the inner wall of the processing chamber 2. Then, the connecting rod 502 pushes the movable rod 503 away from the center position of the annular groove 404 through the hinge rod 506 and the connecting seat 505, and the movable rod 503 pushes the arc extrusion plate 504 in the arc groove 501 to move, and the arc extrusion plate 504 and the inner wall of the storage groove 403 are used to fix the drum brake shoe. Then, the first servo motor 4061 is controlled to drive the driving gear 4062 to rotate, and the transmission of the driving gear 4062 and the annular rack 4063 drives the rotating ring 402 to rotate rapidly, so that the first turning tool 704 and the second turning tool 803 can be used to cut the inner and outer rings of the drum brake shoe.

[0029] like Figure 9-12As shown, the interior of the storage mechanism 4 of this embodiment is provided with a clamping mechanism 5 for fixing the brake shoe, the clamping mechanism 5 includes a connecting rod 502 inserted at the center position of the annular groove 404, an arc groove 501 is opened at the inner circle position of the arc partition 405, four groups of movable rods 503 are evenly inserted at the outer circle position of the annular groove 404, and the end of each group of movable rods 503 extends into the arc groove 501 and is installed with an arc extrusion plate 504 adapted to the arc groove 501, and the movable rod 503 is away from the arc extrusion plate 50 4 is provided with a connecting seat 505, one end of the connecting seat 505 is hinged with a hinge rod 506, and the ends of the four sets of hinge rods 506 away from the connecting seat 505 are all hinged to the outer side of the connecting rod 502, the outer side of the movable rod 503 is sleeved with a return spring 507, the two ends of the return spring 507 are respectively fixedly connected to the connecting seat 505 and the outer ring of the annular groove 404, and the outer end of the connecting rod 502 away from the rotating ring 402 is provided with a second bearing 508, and the outer ring of the second bearing 508 is provided with a limit ring 509. A protective shell 510 covering the annular groove 404 is installed at one end of the ring 402. After the drum brake shoe is inserted into the storage groove 403 of the first rotating ring 402, the two groups of first electric push rods 303 connected to the first rotating ring 402 are controlled to shorten, so that one end of the connecting rod 502 extends to the outside of the processing chamber 2, and the limit ring 509 is against the inner wall of the processing chamber 2. Then, the connecting rod 502 pushes the movable rod 503 away from the center position of the annular groove 404 through the hinge rod 506 and the connecting seat 505, and the movable rod 503 is moved away from the center position of the annular groove 404. 03 pushes the arc extrusion plate 504 in the arc groove 501 to move, and uses the arc extrusion plate 504 and the inner wall of the storage groove 403 to fix the drum brake shoe. During the process, the return spring 507 is shortened and stores elastic potential energy. When the limit ring 509 no longer rests on the inner wall of the processing chamber 2, the elastic potential energy of the return spring 507 will push the arc extrusion plate 504 completely back to the arc groove 501, and the protective shell 510 can completely cover the components located in the annular groove 404 to protect these components.

[0030] like Figure 13-Figure 15As shown, an adjustment mechanism 6 is provided on one side of the processing chamber 2 of the present embodiment, and an outer ring cutting mechanism 7 and an inner ring cutting mechanism 8 for cutting processing are provided on one side of the adjustment mechanism 6, respectively. The adjustment mechanism 6 includes two sets of bidirectional screws 601 located on one side of the processing chamber 2, and two sets of mounting seats 602 are provided on the outer sides of the two sets of bidirectional screws 601 with symmetrical threads, and a driven gear 603 is installed on one end of the outer sides of the two sets of bidirectional screws 601, and a second servo motor 604 is installed on one end of the processing chamber 2 near the driven gear 603, and an active gear meshing with the driven gear 603 is installed on the output end of the second servo motor 604. The outer ring cutting mechanism 7 includes a second electric push rod 701 located at the middle position inside the mounting seat 602, the output end of the second electric push rod 701 is installed with a strip plate 702, and the top and bottom of the inner side of the strip plate 702 are symmetrically installed with movable slide bars 703 that penetrate the mounting seat 602, and the outer ends of the two groups of strip plates 702 that are away from each other are symmetrically installed with first turning tools 704, and the inner ring cutting mechanism 8 includes a third electric push rod 804 installed on the inner side of the strip plate 702, the output end of the third electric push rod 804 passes through the mounting seat 602 and is installed with an L-shaped slide bar 801, and the L-shaped slide bar 801 is close to the strip plate 7 After one end of 02 passes through the mounting seat 602 and the strip plate 702, a fixing block 802 is installed, and a second turning tool 803 is installed at one end of the inner side of the fixing block 802. A storage groove 805 that cooperates with the second turning tool 803 is symmetrically opened at the middle position of the two groups of strip plates 702 away from one end. The second electric push rod 701 is controlled to extend so that the second turning tool 803 is located in the inner circle of the drum brake shoe, and the strip plate 702 is located at the outer circle of the drum brake shoe. By controlling the length of the second electric push rod 701 to extend and the third electric push rod 804 to shorten, the cutting depth of the first turning tool 704 and the second turning tool 803 is controlled, and then The second servo motor 604 is controlled to cooperate with the driven gear 603 and the driving gear 605 to drive the two sets of bidirectional screw rods 601 to rotate synchronously, so that the two sets of mounting seats 602 gradually move away from each other, and then the positions of the first turning tool 704 and the second turning tool 803 on the outer ring and inner ring of the drum brake shoe are controlled. After the second electric push rod 701 is fully retracted, the third electric push rod 804 is controlled to extend to the longest, pushing the L-shaped slide bar 801 to move until the second turning tool 803 enters the storage groove 805, so that the first turning tool 704 and the second turning tool 803 leave between the two sets of rotating rings 402, and will not affect the movement of the two sets of rotating rings 402.

[0031] like Figure 7-Figure 8 and Fig.12As shown, a discharge mechanism 9 is provided at one end of the processing bin 2 of the present embodiment, and the discharge mechanism 9 includes a limit plate 902 located at one end of the processing bin 2, the limit plate 902 is sleeved on the outside of an adjacent group of protective shells 510, and a discharge port 903 is provided at the bottom of the limit plate 902, and an outer sleeve ring 901 adapted to the storage groove 403 is installed on the outside of one group of protective shells 510. After the third group of drum brake shoes are inserted into the storage groove 403 of the second group of rotating rings 402, the first group of drum brake shoes originally located in the storage groove 403 are completely pushed out. At this time, the first group of drum brake shoes are located in the bin formed by the limit plate 902 and the outer sleeve ring 901, and then the second group of rotating rings 402 are controlled to rotate slowly for one circle, so that the drum brake shoes outside the storage groove 403 are affected by gravity and fall into the guide bin 10 through the discharge port 903 one by one.

[0032] like Figure 1-Figure 3 As shown, a chamber door 12 is provided on one side of the processing chamber 2 of the present embodiment, and a guide chamber 10 and a collection chamber 11 are provided on the inner top of the processing table 1. The operator can close the chamber door 12 to prevent the debris generated by cutting from flying out from the inside of the processing chamber 2, while the guide chamber 10 can guide the drum brake shoe that has been cut and processed into a special collection box, and the collection chamber 11 can collect the debris generated by cutting for subsequent centralized processing.

[0033] The working principle of this embodiment is as follows: first, the warehouse door 12 is opened, and the drum brake shoe is inserted into the storage groove 403 of the first group of rotating rings 402. Then, the two groups of first electric push rods 303 connected to the first group of rotating rings 402 are controlled to shorten, so that one end of the connecting rod 502 extends to the outside of the processing warehouse 2, and the limit ring 509 is against the inner wall of the processing warehouse 2. Then, the connecting rod 502 pushes the movable rod 503 away from the center position of the annular groove 404 through the hinge rod 506 and the connecting seat 505, and the movable rod 503 pushes the arc extrusion plate 504 in the arc groove 501 to move, and the drum brake shoe is processed and fixed by using the arc extrusion plate 504 and the inner wall of the storage groove 403, and then the driving gear 4062 is controlled to drive the rotating ring 402 to rotate quickly. The second electric push rod 701 is then controlled to extend, so that the second turning tool 803 is located in the inner ring of the drum brake shoe, and the strip plate 702 is located at the outer ring of the drum brake shoe. The cutting depths of the first turning tool 704 and the second turning tool 803 are controlled by controlling the length of the second electric push rod 701 to extend and the third electric push rod 804 to shorten. Then, the second servo motor 604 is controlled to cooperate with the driven gear 603 and the driving gear 605 to drive the two sets of bidirectional screw rods 601 to rotate synchronously, so that the two sets of mounting seats 602 gradually move away from each other, and then the positions of the first turning tool 704 and the second turning tool 803 at the outer ring and inner ring of the drum brake shoe are controlled. After the exposed part of the drum brake shoe in the first rotating ring 402 is cut, the second electric push rod 701 is controlled to extend and the third electric push rod 804 is shortened. 701 retracts, controls the third electric push rod 804 to extend, moves the first turning tool 704 and the second turning tool 803 out from between the two sets of rotating rings 402, and then controls the first electric push rod 303 to push the first set of rotating rings 402 to move toward the second set of rotating rings 402. Since the limit ring 509 on the first set of rotating rings 402 is away from the inner wall of the processing chamber 2, the fixing effect of the drum brake shoe in the first set of rotating rings 402 is automatically released. In the process of the two sets of rotating rings 402 being fitted together, the exposed part of the drum brake shoe in the first set of rotating rings 402 is inserted into the storage groove 403 of the second set of rotating rings 402. Then controls the first electric push rod 303 connected to the second set of rotating rings 402 to shorten, so that the connecting rod 509 in the second set of rotating rings 402 is The limiting ring 509 on 2 is against the inner wall of the processing chamber 2 to fix the drum brake shoe in the second group of rotating rings 402, and then the first group of rotating rings 402 is controlled to move back to the original position, and the operator manually inserts the next group of drum brake shoes to be processed into each group of storage grooves 403, and then fixes the drum brake shoes in the first group of rotating rings 402, and then controls the second electric push rod 701 to extend and the second turning tool 803 to shorten, and then controls the two groups of rotating rings 402 to rotate synchronously and quickly, and then the first turning tool 704 and the second turning tool 803 cut the exposed parts of the drum brake shoes in the two groups of rotating rings 402. After the third group of drum brake shoes are inserted into the storage groove 403 of the second group of rotating rings 402,The first set of drum brake shoes originally located in the storage groove 403 is completely pushed out, and then the second set of rotating rings 402 is controlled to slowly rotate one circle, so that the drum brake shoes outside the storage groove 403 fall into the guide bin 10 through the discharge port 903 one by one.

[0034] The above description is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention.

Claims

1. An automatic cutting device for a drum brake shoe, comprising a processing table (1) and a processing chamber (2) located on the top of the processing table (1), characterized in that: A movable seat mechanism (3) is arranged on one side of the processing chamber (2), an adjustment mechanism (6) is arranged on the other side of the processing chamber (2), a storage mechanism (4) is arranged inside the movable seat mechanism (3), and a clamping mechanism (5) for fixing the brake shoe is arranged inside the storage mechanism (4), an outer ring cutting mechanism (7) and an inner ring cutting mechanism (8) for cutting processing are arranged on one side of the adjustment mechanism (6), and a discharge mechanism (9) is arranged at one end of the processing chamber (2).

2. The automatic cutting equipment for drum brake shoes according to claim 1, characterized in that: The movable seat mechanism (3) comprises two groups of square seats (302) located inside the processing chamber (2); four groups of fixed slide bars (301) are installed at both ends inside the processing chamber (2); and the four groups of fixed slide bars (301) respectively penetrate the four corners of the two groups of square seats (302); two groups of first electric push rods (303) are symmetrically installed at both ends inside the processing chamber (2); the output ends of the two groups of first electric push rods (303) at the same end are fixedly connected to the diagonal of an adjacent group of square seats (302); and a limit stopper (304) for limiting the moving distance of an adjacent group of square seats (302) is installed at a position near the middle of the top of the processing chamber (2).

3. The automatic cutting equipment for drum brake shoes according to claim 2, characterized in that: The storage mechanism (4) comprises a first bearing (401) located at the middle position of the square seat (302); a rotating ring (402) is installed on the inner ring of the first bearing (401); four groups of storage grooves (403) for placing brake shoes are evenly opened at the edge of the rotating ring (402); annular grooves (404) are symmetrically opened at the center positions of two groups of rotating rings (402) away from one end; arc-shaped partitions (405) are installed in the four groups of storage grooves (403) of one group of rotating rings (402); and a driving device (406) for driving the rotating ring (402) to rotate is arranged on the top of one side of the square seat (302).

4. The automatic cutting equipment for drum brake shoes according to claim 3, characterized in that: The driving device (406) comprises an annular rack (4063) located at one end of the outer side of the rotating ring (402), a first servo motor (4061) is installed on one side of the top of one end of the square seat (302), and a driving gear (4062) meshing with the annular rack (4063) is installed at the output end of the first servo motor (4061).

5. The automatic cutting equipment for drum brake shoes according to claim 3, characterized in that: The clamping mechanism (5) comprises a connecting rod (502) inserted at the center position of the annular groove (404); an arc groove (501) is opened at the inner circle position of the arc partition (405); four groups of movable rods (503) are evenly inserted at the outer circle position of the annular groove (404); the end of each group of movable rods (503) extends into the arc groove (501) and is installed with an arc extrusion plate (504) adapted to the arc groove (501); a connecting seat (505) is installed at one end of the movable rod (503) away from the arc extrusion plate (504); one end of the connecting seat (505) is hinged to the hinge rod (501); 6), and the ends of the four groups of hinged rods (506) away from the connecting seat (505) are all hinged to the outer side of the connecting rod (502), the outer side of the movable rod (503) is sleeved with a return spring (507), the two ends of the return spring (507) are respectively fixedly connected to the connecting seat (505) and the outer ring of the annular groove (404), the outer side of the connecting rod (502) is equipped with a second bearing (508) at one end away from the rotating ring (402), and the outer ring of the second bearing (508) is equipped with a limit ring (509), and one end of the rotating ring (402) is equipped with a protective shell (510) covering the annular groove (404).

6. The automatic cutting equipment for drum brake shoes according to claim 1, characterized in that: The adjustment mechanism (6) comprises two groups of bidirectional screw rods (601) located on one side of the interior of the processing chamber (2); two groups of mounting seats (602) are provided on the outer sides of the two groups of bidirectional screw rods (601) with common symmetrical threads; one end of the outer sides of the two groups of bidirectional screw rods (601) is mounted with a driven gear (603); a second servo motor (604) is mounted on one end of the interior of the processing chamber (2) close to the driven gear (603); and a driving gear (605) meshing with the driven gear (603) is mounted on the output end of the second servo motor (604).

7. The automatic cutting equipment for drum brake shoes according to claim 6, characterized in that: The outer ring cutting mechanism (7) comprises a second electric push rod (701) located at a middle position inside the mounting seat (602), a strip plate (702) being installed at the output end of the second electric push rod (701), and movable slide rods (703) penetrating the mounting seat (602) being symmetrically installed at the top and bottom of the inner side of the strip plate (702), and first turning tools (704) being symmetrically installed at the outer ends of the two groups of strip plates (702) that are away from each other.

8. The automatic cutting equipment for drum brake shoes according to claim 7, characterized in that: The inner ring cutting mechanism (8) comprises a third electric push rod (804) mounted on the inner side of the strip plate (702); the output end of the third electric push rod (804) passes through the mounting seat (602) and is mounted with an L-shaped slide rod (801); and one end of the L-shaped slide rod (801) close to the strip plate (702) passes through the mounting seat (602) and the strip plate (702) and is then mounted with a fixed block (802); one end of the inner side of the fixed block (802) is mounted with a second turning tool (803); and a receiving groove (805) that cooperates with the second turning tool (803) is symmetrically provided at a middle position of the two groups of strip plates (702) away from one end.

9. The automatic cutting equipment for drum brake shoes according to claim 5, characterized in that: The discharge mechanism (9) comprises a limit plate (902) located at one end inside the processing chamber (2), the limit plate (902) being sleeved on the outside of an adjacent group of protective shells (510), and a discharge port (903) is provided at the bottom of the limit plate (902), and an outer sleeve ring (901) adapted to the storage groove (403) is installed on the outside of one group of protective shells (510).

10. The automatic cutting equipment for drum brake shoes according to claim 1, characterized in that: A chamber door (12) is provided on one side of the processing chamber (2), and a guide chamber (10) and a collection chamber (11) are respectively provided on the inner top of the processing table (1).

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