Brake pad press fitting equipment

Abstract

The application relates to the field of brake pad processing, in particular to a brake pad pressing equipment, which comprises a workbench, a positioning table is arranged on the workbench, ananechoic piece is arranged on the positioning table after being bonded with a brake pad, a pressing assembly is arranged at a position corresponding to the positioning table on the workbench, the pressing assembly comprises a driver and a floating pressing head, the floating pressing head is arranged at a driving end of the driver and is oppositely distributed relative to the positioning table, a groove is reserved in the floating pressing head, and an electric heating rod is arranged in the groove. According to the application, the positioning table and the detection assembly are cooperated, the workpiece is positioned by the positioning table, the adjustable telescopic support of the detection assembly is matched with the sensor, the detection height can be adjusted according to the thickness of the brake pad, the workpiece in-place state is accurately judged, the elastic element of the floating pressing head can absorb the rigid impact through elastic deformation, the thickness deviation and the surface flatness of the brake pad can be automatically adapted, the pressing force is uniformly distributed on the bonding surface, and therefore the stability of the pressing action is improved.

Description

Technical Field

[0001] This application relates to the technical field of brake pad processing, and in particular to a brake pad pressing equipment. Background Technology

[0002] The assembly quality of brake pads and mufflers directly affects the braking noise control and structural stability of the vehicle's braking system. The two need to be initially bonded together with adhesive and then cured by pressing to prevent the mufflers from falling off due to vibration and high temperature after long-term use, which could lead to abnormal braking performance.

[0003] In related technologies, most equipment uses rigid pressure heads, and the pressing force is prone to local unevenness due to brake pad thickness deviation or surface unevenness, resulting in workpiece cracking / deformation; moreover, most equipment relies on natural curing, which requires standing for several hours, occupying workstation resources and restricting mass production; the aforementioned equipment with heating function places the heating component below the positioning table, resulting in large heat transfer loss and difficulty in accurately controlling the curing temperature. Utility Model Content

[0004] To improve the stability of the press-fitting of the muffler and the brake disc and to increase the curing efficiency, this application provides a brake pad press-fitting device.

[0005] The brake pad pressing equipment provided in this application adopts the following technical solution:

[0006] A brake pad pressing device is used for pressing sound-absorbing pads. It includes a worktable with a positioning platform. After the sound-absorbing pad is bonded to the brake pad, it is placed on the positioning platform. A pressing assembly is installed on the worktable at a position corresponding to the positioning platform. The pressing assembly includes a driver and a floating pressing head. The floating pressing head is located at the driving end of the driver and is distributed opposite to the positioning platform. A groove is reserved in the floating pressing head, and an electric heating rod is installed in the groove.

[0007] Optionally, the worktable includes a base and a rotating tray, the rotating tray being rotatably mounted on the base, the positioning stage being disposed on the rotating tray, and the pressing assembly being connected to the base and disposed on the outside of the rotating tray.

[0008] Optionally, the detection assembly includes a detection bracket and a sensor. The detection bracket is fixed to the workbench and extends vertically to one side of the positioning stage. The sensor is installed at the upper end of the detection bracket. The detection bracket is an adjustable telescopic rod.

[0009] Optionally, the pressing assembly further includes a bracket, which is fixed on the base. The driver is vertically mounted on the bracket and its driving end extends toward the positioning platform. Through holes are provided on both sides of the bracket located on the driver. Guide sleeves are inserted through the through holes. Guide rods are slidably connected inside the guide sleeves. One end of the guide rod extends upward through the guide sleeve, and the other end is connected to the floating pressing head.

[0010] Optionally, the floating pressing head includes an upper connecting plate, a lower pressing plate, and an elastic element. The upper connecting plate and the lower pressing plate are spaced apart vertically. The driving end of the driver is connected to the upper connecting plate. The elastic element is disposed between the upper connecting plate and the lower pressing plate. The electric heating rod is installed inside the lower pressing plate.

[0011] Optionally, the elastic element includes a connecting rod and a spring. The upper connecting plate has several through holes evenly distributed around the driving end of the driver. One end of the connecting rod is connected to the lower pressure plate, and the other end extends through the through holes to the top of the upper connecting plate. The spring is sleeved on the outside of the connecting rod.

[0012] Optionally, the spring includes an upper spring, which is disposed on the portion of the connecting rod extending above the upper connecting plate. One end of the upper spring is connected to the top end of the connecting rod, and the other end is connected to the upper connecting plate.

[0013] Optionally, the spring includes a lower spring, which is disposed on the portion of the connecting rod located between the upper connecting plate and the lower pressure plate. One end of the lower spring is connected to the upper connecting plate, and the other end is connected to the lower pressure plate.

[0014] In summary, this application includes at least one of the following beneficial technical effects:

[0015] 1. Through the collaboration of the positioning stage and the detection component, the positioning stage positions the workpiece, and the adjustable telescopic bracket of the detection component, together with the sensor, can adjust the detection height according to the thickness of the brake pad to accurately determine the workpiece's position. The elastic element of the floating pressing head can absorb rigid impact through elastic deformation, automatically adapt to the brake pad thickness deviation and surface flatness, so that the pressing force is evenly distributed on the bonding surface, thereby improving the stability of the pressing action.

[0016] 2. The lower platen of the floating pressure head has a built-in electric heating rod, which can directly transfer heat to the bonding surface, reducing heat loss. The temperature control system can accurately control the curing temperature, shorten the curing time, and ensure that the adhesive is fully cured, reducing the risk of detachment. Attached Figure Description

[0017] Figure 1 This is a front view structural diagram of an embodiment of this application.

[0018] Figure 2This is a side view cross-sectional structural diagram of the press-fit assembly according to an embodiment of this application.

[0019] Figure 3 This is an embodiment of the present application. Figure 1 A magnified schematic diagram of the structure at point A in the middle.

[0020] Reference numerals: 1. Workbench; 11. Base; 12. Rotary tray; 2. Positioning stage; 3. Detection assembly; 31. Detection bracket; 32. Sensor; 4. Pressing assembly; 41. Bracket; 42. Driver; 43. Guide sleeve; 44. Guide rod; 45. Floating pressing head; 451. Upper connecting plate; 452. Lower pressing plate; 453. Connecting rod; 454. Upper spring; 455. Lower spring; 5. Electric heating rod. Detailed Implementation

[0021] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.

[0022] This application discloses a brake pad pressing device, designed for the pressing operation of brake pads and mufflers. It aims to improve the bonding strength and assembly accuracy of the two through precise positioning, stable pressing and auxiliary curing, and is suitable for efficient operation in mass production scenarios.

[0023] Reference Figure 1 A brake pad pressing device includes a worktable 1 and a pressing assembly 4. A positioning table 2 is provided on the worktable 1, which is used to position the brake pad and the sound-absorbing plate in the bonded state. The pressing assembly 4 is located on one side of the worktable 1 and is used to press the workpiece on the positioning table 2.

[0024] The workbench 1 includes a base 11 and a rotating tray 12. The base 11 serves as the fixed foundation of the equipment and provides support for the overall structure. The rotating tray 12 is rotatably mounted on the base 11 via bearings. Its function is to realize multi-station cyclic operation: the operator can complete the workpiece loading at one station of the rotating tray 12. After the rotating tray 12 rotates, it transports the workpiece to the pressing station. At the same time, the empty station returns to the loading position, which greatly improves the work efficiency.

[0025] The positioning table 2 is fixedly mounted on the top surface of the rotating tray 12. To limit the position of the brake pads during the pressing process, the positioning table 2 can be configured with a groove structure on its surface that matches the shape of the brake pads; or multiple limiting posts can be set on the surface of the positioning table 2, forming a positioning cavity that matches the shape of the brake pads; alternatively, the positioning table 2 can be configured as a vacuum suction cup structure, using vacuum suction to fix the position of the brake pads. The operator places the assembled workpiece on the positioning table 2. Any of the above methods can ensure that the workpiece will not shift position during the pressing process, thus guaranteeing the subsequent pressing accuracy.

[0026] After the workpiece arrives at the pressing station along with the rotating pallet 12, a detection component 3 is installed on one side of the pressing station. The detection component 3 can confirm whether the workpiece is accurately positioned, avoiding pressing failure or workpiece damage due to workpiece misalignment. The detection component 3 includes a detection bracket 31 and a sensor 32. The detection bracket 31 adopts an adjustable telescopic rod structure, with its lower end fixed to the base 11 and the rod extending vertically upward to one side of the positioning table 2. The length of the telescopic rod can be adjusted according to the thickness of the brake pads to accommodate workpieces of different specifications. The sensor 32 (preferably a photoelectric sensor) is installed on the upper end of the detection bracket 31, with its detection direction facing the workpiece on the positioning table 2. When the workpiece is in position, the sensor 32 receives the signal from the workpiece and feeds it back to the equipment control system; if the workpiece is not in position or its position is misaligned, the sensor 32 issues an alarm signal, and the equipment suspends the pressing operation until the operator adjusts the workpiece position, effectively avoiding invalid pressing and workpiece damage.

[0027] Further, after confirming the workpiece is in place, the equipment enters the pressing preparation stage, where the pressing assembly 4 completes the pressing action on the bonded brake pads and muffler pads. The pressing assembly 4 includes a bracket 41, a driver 42, and a floating pressing head 45. The bracket 41 adopts a welded steel plate structure, with its lower end fixed to the base 11. The bracket 41 is installed on the outside of the rotating tray 12, which does not affect the rotation of the rotating tray 12 and ensures the structural stability during pressing. The driver 42 is preferably a cylinder (or a servo electric cylinder, selected according to the pressing accuracy requirements). It is vertically installed on the top of the bracket 41, with the driving end (piston rod) extending downwards and facing the positioning table 2. The descent speed, pressure, and stroke of the driving end can be adjusted by the control system to meet the pressing parameter requirements of different workpieces.

[0028] To prevent the floating pressing head 45 from shifting during the pressing process, the bracket 41 has circular through holes on both sides of the driver 42. A guide sleeve 43 is interference-fitted into each through hole, and a guide rod 44 is slidably connected inside the guide sleeve 43. The lower end of the guide rod 44 is fixedly connected to the floating pressing head 45, and the upper end extends upward through the guide sleeve 43. When the driver 42 drives the floating pressing head 45 to move up and down, the guide rod 44 slides along the inner wall of the guide sleeve 43, effectively limiting the lateral displacement of the floating pressing head 45 and ensuring that the pressing force always acts perpendicularly on the workpiece surface, thus improving pressing accuracy.

[0029] Reference Figure 1 and Figure 3The floating press head 45 includes an upper connecting plate 451, a lower pressing plate 452, a connecting rod 453, an upper spring 454, and a lower spring 455. The center of the top surface of the upper connecting plate 451 is fixedly connected to the driving end of the driver 42, serving as the transmission carrier of the driving force of the driver 42. The lower pressing plate 452 is distributed vertically and vertically with the upper connecting plate 451, and the bottom surface of the lower pressing plate 452 is adapted to the top surface of the brake pad to ensure the contact area during press-fitting. The connecting rod 453, the upper spring 454, and the lower spring 455 together constitute an elastic element, which works together to achieve the floating function.

[0030] Furthermore, the upper connecting plate 451 has four (or the number can be adjusted according to requirements) through holes evenly distributed on the outer periphery of the driving end of the driver 42. The lower end of the connecting rod 453 is fixedly connected to the top surface of the lower pressure plate 452, and the upper end passes through the through holes and extends to the top of the upper connecting plate 451. The connecting rod 453 and the through holes are clearance fit to ensure free up and down movement. The upper spring 454 is sleeved on the part of the connecting rod 453 that extends to the top of the upper connecting plate 451. One end of the spring is fixed to the top of the connecting rod 453 by a nut, and the other end abuts against the top surface of the upper connecting plate 451. The lower spring 455 is sleeved on the part of the connecting rod 453 located between the upper connecting plate 451 and the lower pressure plate 452. One end of the spring abuts against the bottom surface of the upper connecting plate 451, and the other end abuts against the top surface of the lower pressure plate 452.

[0031] When the floating press head 45 contacts the workpiece downwards, the lower pressure plate 452 is subjected to the reaction force of the workpiece, which pushes the lower spring 455 to compress, while the upper spring 454 is stretched. The elastic deformation of the upper spring 454 and the lower spring 455 absorbs the rigid impact, thus achieving floating press fitting.

[0032] In addition, refer to Figure 2 The lower pressure plate 452 has a pre-reserved groove along its length. An electric heating rod 5 is installed inside the groove and connected to the equipment's temperature control system via a wire. During the pressing process, the electric heating rod 5 heats the lower pressure plate 452 to a preset temperature (set according to the curing requirements of the adhesive, usually 60-80℃). The heat is transferred through the lower pressure plate 452 to the bonding area between the brake pad and the sound-absorbing plate, accelerating the curing reaction of the adhesive, shortening the settling time after pressing, and improving the bonding strength to ensure that the sound-absorbing plate will not fall off during long-term use.

[0033] When the pressing force reaches the preset value and the heating time meets the curing requirements, the driver 42 drives the floating pressing head 45 to reset upward, and the guide rod 44 rises synchronously along the guide sleeve 43; then the rotating tray 12 rotates, transporting the pressed workpiece to the unloading station, and at the same time, a new workpiece to be pressed enters the pressing station to start the next pressing cycle.

[0034] This application discloses a brake pad pressing equipment. Through the coordinated optimization of positioning, pressing, curing, and workstation design, this application comprehensively improves the pressing accuracy, production efficiency, and assembly reliability of brake pad-silencing pads. It is suitable for large-scale mass production scenarios and has significant technical practicality and economic value.

[0035] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A brake pad pressing device for pressing sound-absorbing pads, characterized in that: The device includes a worktable with a positioning platform. A sound-absorbing sheet and a brake pad are bonded together and placed on the positioning platform. A pressing assembly is installed on the worktable at a position corresponding to the positioning platform. The pressing assembly includes a driver and a floating pressing head. The floating pressing head is located at the drive end of the driver and is distributed opposite to the positioning platform. A groove is pre-reserved inside the floating pressing head, and an electric heating rod is installed inside the groove. A detection assembly is also provided on the worktable to detect whether the workpiece on the positioning platform is in place.

2. The brake pad pressing equipment according to claim 1, characterized in that: The workbench includes a base and a rotating tray. The rotating tray is rotatably mounted on the base, the positioning platform is disposed on the rotating tray, and the pressing assembly is connected to the base and disposed on the outside of the rotating tray.

3. The brake pad pressing equipment according to claim 1, characterized in that: The detection assembly includes a detection bracket and a sensor. The detection bracket is fixed to the workbench and extends vertically to one side of the positioning stage. The sensor is installed at the upper end of the detection bracket. The detection bracket is an adjustable telescopic rod.

4. The brake pad pressing equipment according to claim 1, characterized in that: The pressing assembly also includes a bracket, which is fixed on the base. The driver is vertically mounted on the bracket and the driving end extends toward the positioning platform. Through holes are provided on both sides of the bracket located on the driver. Guide sleeves are inserted through the through holes. Guide rods are slidably connected inside the guide sleeves. One end of the guide rod extends upward through the guide sleeve, and the other end is connected to the floating pressing head.

5. The brake pad pressing equipment according to claim 1, characterized in that: The floating pressing head includes an upper connecting plate, a lower pressing plate, and an elastic element. The upper connecting plate and the lower pressing plate are spaced apart vertically. The driving end of the driver is connected to the upper connecting plate. The elastic element is disposed between the upper connecting plate and the lower pressing plate. The electric heating rod is installed inside the lower pressing plate.

6. The brake pad pressing equipment according to claim 5, characterized in that: The elastic element includes a connecting rod and a spring. Several through holes are provided on the upper connecting plate. The several through holes are evenly distributed on the outer periphery of the driving end of the driver. One end of the connecting rod is connected to the lower pressure plate, and the other end extends through the through hole to the top of the upper connecting plate. The spring is sleeved on the outside of the connecting rod.

7. The brake pad pressing equipment according to claim 6, characterized in that: The spring includes an upper spring, which is disposed on the portion of the connecting rod extending above the upper connecting plate. One end of the upper spring is connected to the top of the connecting rod, and the other end is connected to the upper connecting plate.

8. The brake pad pressing equipment according to claim 6 or 7, characterized in that: The spring includes a lower spring, which is disposed on the part of the connecting rod located between the upper connecting plate and the lower pressure plate. One end of the lower spring is connected to the upper connecting plate, and the other end is connected to the lower pressure plate.

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