Novel stamping die for brake pad steel backing

Abstract

The invention discloses a novel stamping die for a brake pad steel backing, which comprises the following steps: feeding and punching, specifically, the feeding is used for fixing and conveying a raw material plate, and the punching is used for punching the middle and edge positions of the raw material plate, blanking, stamping the raw material plate into a required shape, bending and cutting; when raw material plates are intermittently and equidistantly conveyed to the position between the upper mounting plate and the lower mounting plate, the punching male die, the bending male die, the blanking male die, the blanking female die and other parts assembled on the upper mounting plate and the lower mounting plate are arranged, and after it is ensured that the upper die and the lower die can stably move and have no retardation phenomenon, the punching male die and the bending male die are assembled on the upper mounting plate and the lower mounting plate. According to the progressive die, machining treatment such as punching, blanking, bending and cutting can be conveniently conducted on a raw material plate between the upper mounting plate and the lower mounting plate, the closing height of the designed progressive die meets the die filling height of a press machine, the technical requirement is met, and large-batch production can be conducted on the raw material plate.

Description

Technical Field

[0001] The invention relates to the technical field of brake pad steel back production, and more specifically, to a novel stamping die for a brake pad steel back. Background Art

[0002] The brake pad steel back, usually referred to as the steel back, is a steel plate component in the brake pad used to fix the friction material and installed on the brake system. It is located on the back of the friction pad, hence the name. The design of the steel back usually includes rivets and holes to facilitate installation on the caliper and ensure that the friction material can work stably. The brake pad steel back is widely used in the disc brake system on the market and is an indispensable part of the brake pad. During the braking process, the steel back can stably support the friction material and transfer the braking force to the brake system, thereby achieving vehicle deceleration and stopping. Its quality is directly related to the performance and safety of the brake system, and has a profound impact on the quality, reputation and sales of the car.

[0003] The existing brake pad steel back needs to be processed through a variety of molds during production, and then processed through cutting, punching, grinding, bending and other process steps. In mass production, parts need to be transferred continuously, which wastes too much time.

[0004] Therefore, in view of this, the inventor, based on his many years of rich experience in design, development and actual production in the relevant industry, has studied and improved the existing structure and defects, and provided a new stamping die for the steel back of the brake pad, in order to achieve a more practical purpose. Summary of the invention

[0005] In order to overcome the above-mentioned defects of the prior art, an embodiment of the present invention provides a new stamping die for a brake pad steel back to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above object, the present invention provides the following technical solution: a new stamping die for a brake pad steel back, comprising the following steps:

[0007] S1, feeding and punching, wherein the feeding is used to fix and transport the raw material sheet, and the punching is used to punch holes in the middle and edge positions of the raw material sheet;

[0008] S2, die dropping, used to punch the raw material sheet into the required shape;

[0009] S3, bending and cutting, the bending is used to bend the edges of the raw material sheet and the edges of the holes, and the cutting is used to cut the processed raw material sheet.

[0010] Preferably, in step S1, the raw material sheet material loading and punching comprises the following steps:

[0011] S11, using the groove on the limiting shaft to limit the edge of the raw material plate;

[0012] S12, using the middle punching punch to perform punching processing on the middle position of the raw material plate;

[0013] S13, using an edge punching punch to first punch holes on both sides of the raw material plate, and then performing additional punching on the positions after the edge punching;

[0014] S14. Then, when the sensor senses that the upper mounting plate moves upward, the host computer sends a command to the PLC control system to turn on the second electric telescopic rod. At this time, the second electric telescopic rod is used to drive the cleaning plate to move to clean the waste left by the middle punching punch and the edge punching punch for punching the raw material plate.

[0015] Preferably, in step S2, the mold dropping comprises the following steps:

[0016] S21. Use a blanking punch to cooperate with a blanking die to perform blanking processing on one end of the raw material sheet to process the raw material sheet into a desired shape.

[0017] Preferably, in step S3, the bending and cutting comprises the following steps:

[0018] S31, using the first bending convex die and the first bending concave die to bend the middle position of the raw material plate so that both sides of the raw material plate are bent into degrees;

[0019] S32, first use the edge bending die to press against the edge of the raw material sheet after being bent, and then use the sensor to sense that the upper mounting plate moves downward, and the host computer sends a command to the PLC control system to start the first electric telescopic rod, and use the first electric telescopic rod to drive the outer surface of the edge of the raw material sheet after being bent to be squeezed inward, so that the edge of the raw material sheet after being bent is wedged with the surface of the edge bending die;

[0020] S33, using a top block to limit the edge of the hole on the raw material plate, and then using a limit plate to bend the edge of the hole on the raw material plate during the process of the raw material plate moving downward, so that the edge of the hole on the raw material plate can be bent to a desired arc shape;

[0021] S34. Use a cutting knife to cut the processed raw material plate to obtain an independent and complete brake piece steel back.

[0022] Preferably, the feeding assembly includes a connecting assembly, an upper mounting plate is installed on the connecting assembly, a plurality of buffer assemblies are installed on the upper mounting plate, a lower mounting plate is installed on the bottom side of the plurality of buffer assemblies, a plurality of limit shafts are installed on the lower mounting plate, and the grooves on the limit shafts are in contact with the edges of the raw material plates.

[0023] Preferably, the punching assembly includes a middle punching punch and an edge punching punch, and the middle punching punch and the edge punching punch are both mounted on an upper mounting plate, a support frame is mounted on the lower mounting plate, a second electric telescopic rod is mounted on the support frame, a cleaning plate is mounted on the second electric telescopic rod, and the cleaning plate is slidably mounted on the lower mounting plate.

[0024] Preferably, the die assembly includes two blanking convex dies, both of which are mounted on an upper mounting plate, and a blanking die is mounted on the lower mounting plate, and both of the blanking convex dies are matched with the blanking die.

[0025] Preferably, the bending assembly comprises a first bending convex mold, the first bending convex mold is mounted on the upper mounting plate, the first bending concave mold is mounted on the lower mounting plate, and the first bending convex mold is movably mounted on the inner wall of the first bending concave mold;

[0026] The bending assembly also includes two edge bending concave dies, both of which are mounted on the upper mounting plate, a fixing seat is mounted on the lower mounting plate, a first electric telescopic rod is mounted on the fixing seat, an adapter plate is mounted on the first electric telescopic rod, an edge bending convex die is mounted on the adapter plate, and the edge bending convex die is matched with the edge bending concave die;

[0027] The bending assembly also includes a limiting plate, which is mounted on the lower mounting plate. A top block is mounted on the upper mounting plate, and the top block is adapted to the limiting plate.

[0028] Preferably, the cutting assembly comprises a cutting knife, which is mounted on the upper mounting plate and contacts the raw material plate.

[0029] Preferably, the sensor is used to monitor the rise and fall of the upper mounting plate in real time;

[0030] The sensor is used to transmit the data detected by the sensor;

[0031] The host computer is used to analyze the rise and fall of the upper mounting plate uploaded by the sensor, and issue instructions to the PLC control system according to the analyzed data results;

[0032] After receiving the instruction from the host computer, the PLC control system performs corresponding control on the second electric telescopic rod and the cleaning plate.

[0033] Technical effects and advantages of the present invention:

[0034] When the present invention transmits the raw material sheet material between the upper mounting plate and the lower mounting plate at intermittent and equidistant intervals, the punching punch, bending punch, blanking punch, blanking die and other parts assembled on the upper mounting plate and the lower mounting plate are used to ensure that the upper die and the lower die can move smoothly without obstruction. Then, the raw material sheet material between the upper mounting plate and the lower mounting plate can be conveniently processed by punching, blanking, bending and cutting. In addition, the closing height of the designed progressive die meets the die loading height of the press and meets the technical requirements, so the raw material sheet material can be mass-produced. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0036] Figure 2 It is a schematic diagram of the connection structure of the upper mounting plate, the middle punching punch and the edge punching punch of the present invention;

[0037] Figure 3 It is a schematic diagram of the connection structure of the blanking punch and the blanking die of the present invention;

[0038] Figure 4 It is a schematic diagram of the connection between the first bending male die and the first bending female die of the present invention;

[0039] Figure 5 It is a schematic diagram of the connection structure of the edge bending concave die, the first electric telescopic rod and the like of the present invention;

[0040] Figure 6 It is a schematic diagram of the connection structure of the limit plate, the top block and the cutting knife of the present invention;

[0041] Figure 7 It is a schematic diagram of the connection structure of the buffer assembly, the intermediate punching punch and the limiting shaft of the present invention;

[0042] Figure 8 It is a schematic diagram of the connection structure of the second electric telescopic rod, the cleaning plate and the lower mounting plate of the present invention;

[0043] Fig. 9 It is a schematic diagram of the structure of the brake pad steel back of the present invention;

[0044] Fig.10 It is a schematic diagram of a control flow chart of the first electric telescopic rod and the second electric telescopic rod of the present invention.

[0045] The accompanying drawings are marked as follows: 1. connecting assembly; 2. upper mounting plate; 3. lower mounting plate; 4. buffer assembly; 5. limiting shaft; 6. middle punching punch; 7. edge punching punch; 8. blanking punch; 81. blanking die; 9. first bending punch; 91. first bending die; 10. edge bending die; 101. fixing seat; 102. first electric telescopic rod; 103. adapter plate; 104. edge bending punch; 11. limiting plate; 111. top block; 12. support frame; 121. second electric telescopic rod; 122. cleaning plate; 13. gate steel back; 14. cutting knife. DETAILED DESCRIPTION

[0046] 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.

[0047] As attached Figure 1 To Attachment Fig.10 A new stamping die for a brake pad steel back is shown, comprising the following steps:

[0048] Step 1: Loading and punching. Loading is used to fix and transfer the raw material sheet, and punching is used to punch holes in the middle and edge of the raw material sheet.

[0049] Specifically, the loading assembly includes a connecting assembly 1, an upper mounting plate 2 is installed on the connecting assembly 1, a plurality of buffer assemblies 4 are installed on the upper mounting plate 2, a lower mounting plate 3 is installed on the bottom side of the plurality of buffer assemblies 4, a plurality of limiting shafts 5 are installed on the lower mounting plate 3, and the grooves on the limiting shafts 5 are in contact with the edge of the raw material sheet, so that the edge of the raw material sheet can be limited by the grooves on the limiting shafts 5, thereby avoiding the deviation of the raw material sheet during the processing of the raw material sheet, which leads to processing failure.

[0050] Specifically, the punching assembly includes an intermediate punching punch 6 and an edge punching punch 7, both of which are mounted on the upper mounting plate 2, and a support frame 12 is mounted on the lower mounting plate 3, and a second electric telescopic rod 121 is mounted on the support frame 12, and a cleaning plate 122 is mounted on the second electric telescopic rod 121, and the cleaning plate 122 is slidably mounted on the lower mounting plate 3. First, the position of the raw material sheet is determined, and then the intermediate punching punch 6 is used to punch the middle position of the raw material sheet, and then circular holes are punched out on the edges of the raw material sheet in sequence. Punching in batches can effectively prevent the raw material sheet from being punched at one time, which may easily cause irregular deformation of the raw material sheet. At the same time, when the sensor senses that the upper mounting plate 2 is moving upward, the host computer sends a command to the PLC control system to turn on the second electric telescopic rod 121. At this time, the second electric telescopic rod 121 is used to drive the cleaning plate 122 to move, and the waste left by the punching of the raw material sheet by the intermediate punching punch 6 and the edge punching punch 7 is cleaned.

[0051] Step 2: Die dropping, which is used to stamp the raw material sheet into the required shape

[0052] Specifically, the die-dropping assembly includes two blanking punches 8, both of which are mounted on the upper mounting plate 2, and a blanking die 81 is mounted on the lower mounting plate 3, and both of the blanking punches 8 are matched with the blanking die 81. The blanking punches 8 and the blanking die 81 are used in conjunction to perform die-dropping processing on one end of the raw material sheet, so as to facilitate processing the raw material sheet into a desired shape.

[0053] Step three, bending and cutting. Bending is used to bend the edges of the raw material sheet and the edges of the holes, and cutting is used to cut the processed raw material sheet.

[0054] Specifically, the bending assembly includes a first bending punch 9, which is mounted on the upper mounting plate 2, and a first bending die 91 is mounted on the lower mounting plate 3. The first bending punch 9 is movably mounted on the inner wall of the first bending die 91, and the first bending punch 9 cooperates with the first bending die 91 to bend the middle position of the raw material sheet so that both sides of the raw material sheet are bent to 90 degrees;

[0055] Specifically, the bending assembly also includes two edge bending dies 10, both of which are mounted on the upper mounting plate 2, a fixed seat 101 is mounted on the lower mounting plate 3, a first electric telescopic rod 102 is mounted on the fixed seat 101, an adapter plate 103 is mounted on the first electric telescopic rod 102, an edge bending punch 104 is mounted on the adapter plate 103, and the edge bending punch 104 is adapted to the edge bending die 10, and the edge bending die 10 is first used to press against the bent edge of the raw material sheet, and then when the sensor senses that the upper mounting plate 2 moves downward, the host computer sends a command to the PLC control system to turn on the first electric telescopic rod 102, and the first electric telescopic rod 102 drives 105 to squeeze the outer surface of the bent edge of the raw material sheet inward, so that the bent edge of the raw material sheet is wedged with the surface of the edge bending die 10, so that the edge of the raw material sheet can be conveniently bent into a desired shape.

[0056] Specifically, the bending assembly also includes a limit plate 11, which is installed on the lower mounting plate 3, and a top block 111 is installed on the upper mounting plate 2. The top block 111 is adapted to the limit plate 11, and the top block 111 is used to limit the edge of the hole on the raw material plate. Then, during the process of the raw material plate moving downward, the limit plate 11 is used to bend the edge of the hole on the raw material plate, so that the edge of the hole on the raw material plate can be bent to the required 90-degree arc.

[0057] Specifically, the cutting assembly includes a cutting knife 14 , which is mounted on the upper mounting plate 2 and in contact with the raw material plate. The cutting knife 14 is used to cut the processed raw material plate, and can conveniently and quickly separate the independent raw material plate into the gate steel back 13 .

[0058] In this embodiment, the sensor is used to monitor the rise and fall of the upper mounting plate 2 in real time, and the sensor is used to transmit the data detected by the sensor. The host computer is used to analyze the rise and fall of the upper mounting plate 2 uploaded by the sensor, and at the same time, issues instructions to the PLC control system based on the analyzed data results. After receiving the instructions issued by the host computer, the PLC control system makes corresponding controls on the second electric telescopic rod 121 and the cleaning plate 122.

[0059] The working principle of the present invention is as follows: before processing the raw material sheet, first select the appropriate processing parts according to the requirements of the parts drawing, and then assemble the selected molds on the corresponding upper mounting plate 2 and lower mounting plate 3 respectively through bolts, and then use an external drive to test the molds assembled on the upper mounting plate 2 and the lower mounting plate 3. When the closing height of the molds on the upper mounting plate 2 and the lower mounting plate 3 meets the mold height of the press and can move smoothly, they can be used. When in use, first install one end of the raw material sheet on the external transmission device, and install the other end on the clamp connected to the limit shaft 5. The groove is then opened, and the external transmission device is started to transmit the raw material sheet to the right side intermittently and equidistantly. At the same time, the external pressing device on the connecting component 1 is started. When the external transmission device transmits the raw material sheet to between the upper mounting plate 2 and the lower mounting plate 3, the external pressing device drives the connecting component 1 to move downward, and the connecting component 1 drives the upper mounting plate 2 to move downward. The upper mounting plate 2 drives the middle punching punch 6 to move downward to perform punching processing on the middle position of the raw material sheet. After the middle punching is completed, the raw material sheet continues to move to the right side. At this time, the upper mounting plate 2 is used to drive the edge punching punch 7 to punch the raw material sheet. First, 5 holes of the limit shaft are punched on the edge of the raw material. Then, when the raw material plate continues to move to the right, 4 holes of the buffer component are supplemented at the middle position of the 5 holes of the limit shaft punched on the raw material plate by using the edge punching punch 7, so that the edge of the raw material plate can be punched out with the predetermined 9 holes of the first bending punch in batches, avoiding punching processing at the middle position and edge position of the raw material plate at one time, which is easy to cause irregular deformation of the raw material plate and then cause punching failure. After the punching of the raw material plate is completed, the sensor senses that the upper mounting plate 2 moves upward, and at the same time, the limit shaft 5 drives the raw material plate When it moves upward and separates from the surface of the lower mounting plate 3, the host computer issues a command to the PLC control system to turn on the switch of the second electric telescopic rod 121, and the second electric telescopic rod 121 drives the cleaning plate 122 to slide on the lower mounting plate 3, so that the waste left after the raw material plate is punched can be cleaned in time to avoid affecting the next punching process. When the upper mounting plate 2 moves downward, the host computer issues a command to the PLC control system again to retract the second electric telescopic rod 121, so as to avoid the cleaning plate 122 staying on the lower mounting plate 3 and affecting the punching process of the raw material plate;

[0060] When the raw material sheet continues to move forward after punching, the upper mounting plate 2 is used to drive the blanking punch 8 to move downward, and the blanking punch 8 drives the raw material sheet to fit with the blanking die 81 on the lower mounting plate 3. When the upper mounting plate 2 drives the blanking punch 8 to continue to move downward, the hole in the shape of the blanking punch 8 can be conveniently cut out on the raw material sheet, so that the raw material sheet is processed into a predetermined shape;

[0061] After the blanking is completed, the raw material sheet continues to move to the right. At this time, the upper mounting plate 2 drives the first bending punch 9 to move downward, and squeezes the middle position of the raw material sheet into the groove of the first bending die 91, so that the two sides of the raw material sheet can be conveniently bent. Then the raw material sheet continues to move to the right. When the raw material sheet moves to the bottom of the edge bending die 10, the upper mounting plate 2 drives the edge bending die 10 to move downward, so that the edge bending die 10 is against the inner wall of the edge of the raw material sheet. At this time, the sensor senses that the upper mounting plate 2 moves downward, and the host computer sends an instruction to the PLC control system to turn on the switch of the first electric telescopic rod 102. The first electric telescopic rod 102 drives the edge bending punch 104 to move toward the middle, and the edge bending punch 104 squeezes the edge of the raw material sheet into the groove of the edge bending die 10, so that the edge of the raw material sheet can be conveniently bent into a desired shape.

[0062] After the edge of the raw material sheet is bent and formed, it continues to move to the right side. At this time, the upper mounting plate 2 is used to drive the top block 111 to move downward and abut against the edge of the hole on the raw material sheet, while driving the raw material sheet to move downward. When the lower surface of the raw material sheet contacts the limiting plate 11 and continues to move downward, the edge of the hole on the raw material sheet can be bent upward.

[0063] After the holes on the raw material plate are bent, it continues to move to the right. At this time, the upper mounting plate 2 drives the cutting knife 14 to move downward to cut the raw material plate, so that an independent and complete brake piece steel back 13 can be obtained.

[0064] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

[0065] Secondly: In the drawings of the embodiments disclosed in the present invention, only the structures related to the embodiments disclosed in the present invention are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present invention can be combined with each other;

[0066] Finally: The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A new stamping die for the steel back of a brake pad, characterized in that: The following steps are involved: S1, feeding and punching, wherein the feeding is used to fix and transport the raw material sheet, and the punching is used to punch holes in the middle and edge positions of the raw material sheet; S2, die dropping, used to punch the raw material sheet into the required shape; S3, bending and cutting, the bending is used to bend the edges of the raw material sheet and the edges of the holes, and the cutting is used to cut the processed raw material sheet.

2. The new stamping die for the brake pad steel back according to claim 1 is characterized in that: In step S1, the raw material sheet material loading and punching includes the following steps: S11, using the groove on the limiting shaft (5) to limit the edge of the raw material plate; S12, using the middle punching punch (6) to perform punching processing on the middle position of the raw material plate; S13, using the edge punching punch (7) to first punch holes on both sides of the raw material plate, and then performing additional punching on the positions after the edge punching; S14, when the sensor senses that the upper mounting plate (2) moves upward, the host computer sends a command to the PLC control system to start the second electric telescopic rod (121), and the second electric telescopic rod (121) is used to drive the cleaning plate (122) to move, so as to clean the waste left by the middle punching punch (6) and the edge punching punch (7) when punching the raw material plate.

3. The new stamping die for the brake pad steel back according to claim 1 is characterized in that: In step S2, the mold dropping includes the following steps: S21, using the blanking convex die (8) to cooperate with the blanking concave die (81) to perform blanking processing on one end of the raw material plate, so as to process the raw material plate into a desired shape.

4. The new stamping die for the brake pad steel back according to claim 1 is characterized in that: In step S3, the bending and cutting comprises the following steps: S31, using the first bending convex mold (9) and the first bending concave mold (91) to bend the middle position of the raw material plate so that both sides of the raw material plate are bent to 90 degrees; S32, first use the edge bending die (10) to press against the edge of the raw material sheet after being bent, and then use the sensor to sense that the upper mounting plate (2) moves downward, and the upper computer sends a command to the PLC control system to start the first electric telescopic rod (102), and use the first electric telescopic rod (102) to drive (105) to press the outer surface of the edge of the raw material sheet after being bent inward, so that the edge of the raw material sheet after being bent is wedged with the surface of the edge bending die (10); S33, using the top block (111) to limit the edge of the hole on the raw material plate, and then using the limit plate (11) to bend the edge of the hole on the raw material plate during the process of the raw material plate moving downward, so that the edge of the hole on the raw material plate can be bent to the required 90-degree arc; S34, using a cutting knife (14) to cut the processed raw material plate, an independent and complete brake piece steel back (13) can be obtained.

5. The new stamping die for the brake pad steel back according to claim 2 is characterized in that: The loading assembly comprises a connecting assembly (1), an upper mounting plate (2) is mounted on the connecting assembly (1), a plurality of buffer assemblies (4) are mounted on the upper mounting plate (2), a lower mounting plate (3) is mounted on the bottom side of the plurality of buffer assemblies (4), a plurality of limiting shafts (5) are mounted on the lower mounting plate (3), and a groove on the limiting shaft (5) contacts an edge of a raw material plate.

6. The new stamping die for the brake pad steel back according to claim 2 is characterized in that: The punching assembly comprises a middle punching punch (6) and an edge punching punch (7), the middle punching punch (6) and the edge punching punch (7) are both mounted on an upper mounting plate (2), a support frame (12) is mounted on the lower mounting plate (3), a second electric telescopic rod (121) is mounted on the support frame (12), a cleaning plate (122) is mounted on the second electric telescopic rod (121), and the cleaning plate (122) is slidably mounted on the lower mounting plate (3).

7. The new stamping die for the brake pad steel back according to claim 3 is characterized by: The die assembly comprises two blanking convex dies (8), both of which are mounted on the upper mounting plate (2), and a blanking concave die (81) is mounted on the lower mounting plate (3), and both of the blanking convex dies (8) are matched with the blanking concave die (81).

8. The new stamping die for the brake pad steel back according to claim 4 is characterized in that: The bending assembly comprises a first bending convex mold (9), the first bending convex mold (9) is mounted on the upper mounting plate (2), a first bending concave mold (91) is mounted on the lower mounting plate (3), and the first bending convex mold (9) is movably mounted on the inner wall of the first bending concave mold (91); The bending assembly further comprises two edge bending dies (10), both of which are mounted on the upper mounting plate (2), a fixing seat (101) is mounted on the lower mounting plate (3), a first electric telescopic rod (102) is mounted on the fixing seat (101), an adapter plate (103) is mounted on the first electric telescopic rod (102), an edge bending convex die (104) is mounted on the adapter plate (103), and the edge bending convex die (104) is matched with the edge bending dies (10); The bending assembly also includes a limiting plate (11), which is mounted on the lower mounting plate (3), and a top block (111) is mounted on the upper mounting plate (2), and the top block (111) is adapted to fit the limiting plate (11).

9. The new stamping die for the brake pad steel back according to claim 4, characterized in that: The cutting assembly comprises a cutting knife (14), which is mounted on the upper mounting plate (2) and is in contact with the raw material plate.

10. The new stamping die for the brake pad steel back according to claim 1, characterized in that: The sensor is used to monitor the rise and fall of the upper mounting plate (2) in real time; The sensor is used to transmit the data detected by the sensor; The host computer is used to analyze the rise and fall of the upper mounting plate (2) uploaded by the sensor, and to issue instructions to the PLC control system according to the analyzed data results; After receiving the instruction from the host computer, the PLC control system performs corresponding control on the second electric telescopic rod (121) and the cleaning plate (122).

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