Automatic cutting equipment for drum brake shoes

Abstract

The present invention discloses an automatic cutting device for drum brake shoes, which belongs to the technical field of automobile parts manufacturing. The automatic cutting device for drum brake shoes comprises a processing table and a processing chamber located on the top of the processing table, wherein a movable seat mechanism is provided on one side of the processing chamber, an adjustment mechanism is provided on the other side of the processing chamber, a storage mechanism is provided on the inside of the movable seat mechanism, and a clamping mechanism for fixing the brake shoes is provided on the inside of the storage mechanism. The present invention provides two sets of rotating rings, and the drum brake shoes in one set of rotating rings are automatically inserted into the other set of rotating rings through the movable seat mechanism, and are fixed by the clamping mechanism. In this way, the portion of the outer side 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 device for drum brake shoes.

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 above-mentioned 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 provided on one side of the processing chamber, an adjustment mechanism is provided on the other side of the processing chamber, a placement mechanism is provided inside the movable seat mechanism, and a clamping mechanism for fixing the brake shoe is provided inside the placement mechanism, an outer ring cutting mechanism and an inner ring cutting mechanism for cutting processing are respectively provided on one side of the adjustment mechanism, and a discharge mechanism is provided at one end of 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 of the interior of 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 is installed near the middle of the top of the processing warehouse to limit the moving distance of an adjacent group of square seats.

[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, the inner ring of the first bearing is installed with a rotating ring, and 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 of each other, and arc-shaped partitions are installed in the four groups of storage grooves of one group of rotating rings. A driving device for driving the rotating ring to rotate is provided at 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 outside 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 used 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 groove is opened at the inner ring position of the arc partition, and 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 groove and is installed with an arc extrusion plate adapted to the arc groove, and a connecting seat is installed at one end of the movable rod away from the arc extrusion plate, and 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 all hinged to the outer side of the connecting rod, and a return spring is provided 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 the 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 solution, 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. 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 using the arc extrusion plate and the inner wall of the storage groove. During the process, the reset spring is shortened by force and stores elastic potential energy. When the limit ring no longer rests against the inner wall of the processing chamber, the elastic potential energy of the reset spring will push the arc extrusion plate completely back into the arc groove, and the protective shell can completely cover the components located in the annular groove to protect these components.

[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 provided with common symmetrical threads on the outer sides of the two groups of bidirectional screw rods. One end of the outer sides of the two groups of bidirectional screw rods is installed with a driven gear, and a second servo motor is installed at one end of the interior of the processing chamber close to the driven gear, and the output end of the second servo motor is installed with a driving gear that meshes with the driven gear.

[0015] Through the above technical solution, 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 screws to rotate synchronously. 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 precisely 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, the output end of the second electric push rod is installed with a strip plate, and the top and bottom of the inner side of the strip plate are symmetrically installed with movable sliding rods passing through the mounting seat, and the first turning tool is symmetrically installed on the outer ends of the two groups of strip plates 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 extension 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 ring 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 set of drum brake shoes are inserted into the storage groove of the second set of rotating rings, the first set of drum brake shoes originally located in the storage groove are completely pushed out. At this time, the first set of drum brake shoes are located in the chamber formed by the limit plate and the outer ring. Then the second set of rotating rings are controlled to slowly rotate one circle, allowing the drum brake shoes outside the storage groove to fall into the guide bin one by one through the discharge port under the influence of gravity.

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

[0023] Through the above technical solution, the operator can prevent the debris generated by cutting from flying out of the processing chamber by closing the chamber door, and the guide chamber can guide the drum brake shoes that have been cut into a special collection box. The collection chamber can collect the debris 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 sets of rotating rings, and uses the moving seat mechanism to automatically insert the drum brake shoes in one set of rotating rings into the other set of rotating rings, and fix them 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 the moving seat mechanism to automatically remove the drum brake shoes in the first set of rotating rings. The drum brake shoe is pushed into the second set of rotating rings. After two sets of drum brake shoes are inserted into the storage grooves of the second set of rotating rings, if a third set of drum brake shoes is inserted into the storage grooves of the second set of rotating rings, the first set of drum brake shoes originally located in the storage grooves can be completely pushed out. The drum brake shoe that has 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 that the cutting equipment automatically cuts 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 This is a first perspective structural diagram of the present invention;

[0026] Figure 2 This is a structural diagram from a second perspective of the present invention;

[0027] Figure 3 It is a structural diagram from a third perspective of the present invention;

[0028] Figure 4 is a schematic top cross-sectional view of the present invention;

[0029] Figure 5 This is a first-perspective structural diagram of the processing chamber of the present invention;

[0030] Figure 6 This is a second perspective structural diagram of the processing chamber of the present invention;

[0031] 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;

[0032] Figure 8 This is a structural diagram of the movable seat mechanism and the storage mechanism of the present invention from a second perspective;

[0033] Figure 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;

[0034] Figure 10 This is a structural diagram of the connection between the storage mechanism and the clamping mechanism of the present invention from a second perspective;

[0035] Figure 11 It is a structural schematic diagram of the clamping mechanism of the present invention;

[0036] Figure 12 is a three-dimensional schematic diagram of the protective case of the present invention;

[0037] Figure 13 This is a structural diagram from a first perspective showing the connection between the adjustment mechanism and the two sets of cutting mechanisms of the present invention;

[0038] Figure 14 This is a structural diagram from a second perspective showing the connection between the adjustment mechanism and the two sets of cutting mechanisms of the present invention;

[0039] Figure 15 It is a schematic structural diagram of the present invention in which the two cutting mechanisms are fully retracted.

[0040] 1. Processing table; 2. Processing chamber; 3. Moving seat mechanism; 301. Fixed slide bar; 302. Square seat; 303. First electric push rod; 304. Limit block; 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; 704, first turning tool; 8, inner ring cutting mechanism; 801, L-shaped slide; 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

[0041] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to 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.

[0042] like Figure 1-Figure 2 and Figure 4-11As shown, the automatic cutting equipment for drum brake shoes of this embodiment includes a processing table 1 and a processing warehouse 2 located on the top of the processing table 1, a movable seat mechanism 3 is provided on one side of the interior of the processing warehouse 2, and a storage mechanism 4 is provided inside the movable seat mechanism 3, and the movable seat mechanism 3 includes two groups of square seats 302 located inside the processing warehouse 2, and four groups of fixed slide bars 301 are installed at both ends of the interior of the processing warehouse 2, and the four groups of fixed slide bars 301 respectively pass through the four corners of the two groups of square seats 302, and two groups of first electric push rods 303 are symmetrically installed at both ends of the interior of the processing warehouse 2, and 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 near the middle of the processing warehouse 2. The limiting block 304 controls the moving distance of an adjacent group of square seats 302. The storage mechanism 4 includes a first bearing 401 located in the middle of the square seat 302. The inner ring of the first bearing 401 is equipped with a rotating ring 402. 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. The four groups of storage grooves 403 of a group of rotating rings 402 are all equipped with arc-shaped partitions 405. 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. 02 is installed on one side of the top of one end, and the output end of the first servo motor 4061 is installed with a driving gear 4062 that meshes with the annular rack 4063. 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-shaped partition 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 rests on 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 hinged 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 driving gear 4062 and the annular rack 4063 are used to drive 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.

[0043] like Figures 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 ring position of the arc-shaped partition 405, and four groups of movable rods 503 are evenly inserted at the outer ring 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 501. 4 is provided with a connecting seat 505 at one end, and a hinged rod 506 is hinged at one end of the connecting seat 505, and the ends of the four sets of hinged rods 506 away from the connecting seat 505 are hinged to the outer side of the connecting rod 502, and a return spring 507 is sleeved on the outer side of the movable rod 503, and the two ends of the return spring 507 are fixedly connected to the connecting seat 505 and the outer ring of the annular groove 404 respectively. A second bearing 508 is installed at the end of the outer side of the connecting rod 502 away from the rotating ring 402, and a limit ring 509 is installed on the outer ring of the second bearing 508. A protective shell 510 is installed at one end of the ring 402 to cover the annular groove 404. After the drum brake shoe is inserted into the storage groove 403 of the first set of rotating rings 402, the two sets of first electric push rods 303 connected to the first set of rotating rings 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 limiting 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 by force 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.

[0044] like Figure 13-15As shown, an adjustment mechanism 6 is provided on one side of the interior of the processing chamber 2 of this 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. The adjustment mechanism 6 includes two sets of bidirectional screws 601 located on one side of the interior of the processing chamber 2. Two sets of mounting seats 602 are provided on the outer sides of the two sets of bidirectional screws 601 with symmetrical threads. A driven gear 603 is installed on one end of the outer sides of the two sets of bidirectional screws 601. A second servo motor 604 is installed on one end of the interior 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. Gear 605, the outer ring cutting mechanism 7 includes a second electric push rod 701 located in 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 rods 703 that pass through the mounting seat 602, and the outer ends of the two groups of strip plates 702 are symmetrically installed with first turning tools 704 at one end away from each other. 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 rod 801, and the L-shaped slide rod 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. A second turning tool 803 is installed on one end of the inner side of the fixing block 802. A receiving groove 805 that cooperates with the second turning tool 803 is symmetrically opened at the middle position of the two sets 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 ring of the drum brake shoe, and the strip plate 702 is located at the outer ring of the drum brake shoe. By controlling the length of the second electric push rod 701 extension and the shortening of the third electric push rod 804, 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 control 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. After the second electric push rod 701 is fully retracted, the third electric push rod 804 is controlled to extend to the longest position, pushing the L-shaped slide bar 801 to move until the second turning tool 803 enters the storage groove 805. In this way, 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.

[0045] like Figure 7-Figure 8 and Figure 12As shown, a discharge mechanism 9 is provided at one end of the interior of the processing chamber 2 of this embodiment, and the discharge mechanism 9 includes a limit plate 902 located at one end of the interior of the processing chamber 2, and 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 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 chamber formed by the limit plate 902 and the outer ring 901. 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 chamber 10 one by one through the discharge port 903.

[0046] like Figure 1-Figure 3 As shown, a chamber door 12 is provided on one side of the processing chamber 2 of this 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, and 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.

[0047] The working principle of this embodiment is as follows: first, open the warehouse door 12, insert the drum brake shoe into the storage groove 403 of the first group of rotating rings 402, control the two groups of first electric push rods 303 connected to the first group of rotating rings 402 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, and 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 rapidly. The second electric push rod 701 is controlled to extend, and 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 depth of the first turning tool 704 and the second turning tool 803 is 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, thereby controlling the positions of the first turning tool 704 and the second turning tool 803 on the outer ring and the inner ring of the drum brake shoe. After the exposed part of the drum brake shoe in the first set of rotating rings 402 is cut, the second electric push rod 701 is controlled to extend and the strip plate 702 is located at the outer ring of the drum brake shoe. 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, 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, because 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, and in the process of the two sets of rotating rings 402 fitting 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 2 is pressed against the inner wall of the processing chamber 2 to fix the drum brake shoe in the second set of rotating rings 402, and then the first set of rotating rings 402 is controlled to move back to the original position, and the operator manually inserts the next set of drum brake shoes to be processed into each set of storage grooves 403, and then fixes the drum brake shoes in the first set 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 sets of rotating rings 402 to rotate synchronously and quickly, and then uses the first turning tool 704 and the second turning tool 803 to cut the exposed parts of the drum brake shoes in the two sets of rotating rings 402, and after the third set of drum brake shoes is inserted into the storage groove 403 of the second set 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, allowing the drum brake shoes outside the storage groove 403 to fall one by one through the discharge port 903 into the guide bin 10.

[0048] The above description is merely a preferred embodiment of the present invention and is not intended to limit the scope of protection 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 top of the processing table (1), characterized in that: A movable seat mechanism (3) is provided on one side of the processing chamber (2), an adjusting mechanism (6) is provided on the other side of the processing chamber (2), a storage mechanism (4) is provided inside the movable seat mechanism (3), and a clamping mechanism (5) for fixing the brake shoe is provided inside the storage mechanism (4), an outer ring cutting mechanism (7) and an inner ring cutting mechanism (8) for cutting processing are provided on one side of the adjusting mechanism (6), and a discharge mechanism (9) is provided at one end of the processing chamber (2); 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 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 limit block (304) for limiting the moving distance of the adjacent group of square seats (302) is installed near the middle of the top of the processing chamber (2); The storage mechanism (4) includes a first bearing (401) located in the middle 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, and 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 provided on the top of one side of the square seat (302); The clamping mechanism (5) includes a connecting rod (502) inserted at the center of the annular groove (404), an arc groove (501) is opened at the inner circle of the arc partition (405), and four groups of movable rods (503) are evenly inserted at the outer circle 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 a connecting seat (505) is installed at one end of the movable rod (503) away from the arc extrusion plate (504), and one end of the connecting seat (505) is hinged to the hinge rod (50 6), and the ends of the four sets 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 provided 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) away from the rotating ring (402) is equipped with a second bearing (508), 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); The discharge mechanism (9) comprises a limiting plate (902) located at one end inside the processing chamber (2), the limiting plate (902) being sleeved on the outside of an adjacent group of protective shells (510), and a discharge opening (903) being provided at the bottom of the limiting plate (902), and an outer ring (901) adapted to the storage groove (403) being installed on the outside of one group of protective shells (510).

2. The automatic cutting equipment for drum brake shoes according to claim 1, characterized in that: The driving device (406) comprises an annular rack (4063) located at one end outside 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).

3. The automatic cutting equipment for drum brake shoes according to claim 1, characterized in that: The adjustment mechanism (6) comprises two sets of bidirectional screw rods (601) located on one side of the interior of the processing chamber (2); two sets of mounting seats (602) are provided on the outer sides of the two sets of bidirectional screw rods (601) with common symmetrical threads; one end of the outer sides of the two sets 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).

4. The automatic cutting equipment for drum brake shoes according to claim 3, 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) is installed at the output end of the second electric push rod (701), and movable slide rods (703) penetrating the mounting seat (602) are symmetrically installed at the top and bottom of the inner side of the strip plate (702), and a first turning tool (704) is symmetrically installed at the outer ends of the two groups of strip plates (702) that are away from each other.

5. The automatic cutting equipment for drum brake shoes according to claim 4, characterized in that: 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 rod (801), and the 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 installed with a fixed block (802), and one end of the fixed block (802) is installed with a second turning tool (803), and the two groups of strip plates (702) are symmetrically provided with a receiving groove (805) that cooperates with the second turning tool (803) at a middle position away from one end.

6. 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 provided on the inner top of the processing table (1).

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