Automatic feeding device for brake pad machining production line

Abstract

The invention relates to the technical field of automatic feeding, in particular to an automatic feeding device for a brake pad machining production line. Comprising a frame which is provided with a machine vision module; the electric control box and the truss structure are both installed on the frame, and the truss structure is provided with an electric sliding block; the first servo motor and the second servo motor are both mounted on the electric sliding block; the large arm is fixedly connected to an output shaft of the first servo motor; the multiple pneumatic clamping jaws are all rotationally connected to the movable frame, and the pneumatic clamping jaws are connected with an external air pump; and the shockproof mechanism is arranged on the moving frame and used for stabilizing the brake pad. The pneumatic clamping jaw moves to a physical actual coordinate through movement of the electric sliding block and rotation of the large arm, so that on the premise that the feeding efficiency is improved, vibration of the device is reduced, and the brake pad placing accuracy is improved.

Description

Technical Field

[0001] The invention relates to the technical field of automatic feeding, and in particular to an automatic feeding device for a brake pad processing production line. Background Art

[0002] Brake pads are one of the key components of a car's braking system. They are responsible for transmitting braking force to the brake disc or brake drum when the vehicle brakes, generating friction to slow down or stop the movement of the vehicle. Common brake pad materials include organic friction materials, metal friction materials, and ceramic friction materials. In order to protect the surface of the brake pads, improve friction performance, and reduce noise, it is usually necessary to spray powder on the brake pads. In the production process of brake pads, it is generally an assembly line mode, so it is necessary to use a feeding device to transfer the brake pads. Most of the existing feeding devices use a moving truss and a moving slider to make the clamp move in all directions to clamp the brake pads. However, when the feeding speed of the existing feeding device reaches 15 pieces / minute, a lot of noise will occur. At the same time, due to the inertia of the device, jitter occurs, resulting in a large positioning error in the servo system, which seriously affects the normal feeding work. After a lot of experiments and calculations, this application proposes an automatic feeding device for a brake pad processing production line to solve the above problems. Summary of the invention

[0003] In order to overcome the shortcomings of the prior art that the truss mechanism generates a lot of noise when transferring brake pads at high speed, and that the servo system has a large positioning error due to the inertia of the equipment, the present invention provides an automatic feeding device for a brake pad processing production line.

[0004] The technical solution is as follows: An automatic feeding device for a brake pad processing production line, comprising: a frame, on which a machine vision module is arranged; an electric control box and a truss structure, both installed on the frame, on which an electric slider is installed; a first servo motor and a second servo motor, both installed on the electric slider; a large arm, fixedly connected to the output shaft of the first servo motor; a lifting cylinder, installed on the large arm, the lifting cylinder and the output shaft on the second servo motor are connected through a transmission module; a moving frame, fixedly connected to the telescopic end of the lifting cylinder; a plurality of pneumatic clamps, all of which are rotatably connected to the moving frame, the pneumatic clamps are connected to an external air pump, the machine vision module, the electric slider, the first servo motor, the second servo motor, the lifting cylinder and the pneumatic clamps are all electrically connected to the electric control box; an anti-vibration mechanism, arranged on the moving frame, for stabilizing the brake pads.

[0005] Preferably, a rubber sheet is provided on the inner side of the pneumatic clamping jaw for stably clamping the brake pad.

[0006] Preferably, the anti-vibration mechanism comprises: a sliding rod slidably connected to the moving frame, an elastic element fixedly connected between the sliding rod and the moving frame; an intermediate piece fixedly connected to the sliding rod; and a contact piece fixedly connected to the intermediate piece.

[0007] Preferably, the contact piece is made of soft material and is used for gently contacting the brake pad.

[0008] Preferably, it also includes: a sliding plate, which is slidably connected to the middle piece, the middle piece is provided with a cavity, the sliding plate is located in the cavity, the contact piece is shell-shaped, and the contact piece is communicated with the cavity; a sliding piece, which is slidably connected to the middle piece, the sliding piece is fixedly connected to the sliding plate; a deflection piece, which is fixedly connected to the pneumatic clamp, the deflection piece is provided with a limiting groove, and the limiting groove is extruded and matched with the sliding piece.

[0009] Preferably, the limiting groove is in an inclined state, and a symmetry line on the limiting groove is perpendicular to a rotation axis between the pneumatic clamp and the movable frame.

[0010] Preferably, it further comprises: a plurality of one-way valves arranged at intervals and all installed on a side of the middle piece close to the contact piece, wherein the one-way valve is connected to the cavity.

[0011] Preferably, the contact piece is in the shape of an inverted funnel, and the plurality of one-way valves are located above the upper side of the contact piece to guide the gas coming out of the cavity.

[0012] Preferably, it also includes: a deflection frame fixedly connected to the pneumatic clamp; a damping member fixedly connected to the moving frame, the damping member is extruded and matched with the sliding rod, and the damping member is fixedly connected to the deflection frame.

[0013] Preferably, one side of the damping member is a folded surface, which is used to block the sliding rod to different degrees.

[0014] Compared with the prior art, the present invention has at least the following advantages: the present invention moves the pneumatic clamp to the actual physical coordinates by the movement of the electric slider and the rotation of the upper arm, thereby reducing the vibration of the device and improving the accuracy of placing the brake pad while improving the feeding efficiency; the contact piece is used to press the brake pad downward all the time to reduce the upward rebound tendency of the brake pad, thereby preventing the brake pad from deviating from the predetermined position due to the upward rebound of the brake pad, thereby changing the distance between several brake pads, resulting in uneven distribution of powder on the brake pad during the subsequent powder spraying process, thereby reducing the powder spraying quality; by The contact piece absorbs the brake pad, which increases the stability during the placement of the brake pad and prevents the brake pad from moving relative to the contact piece due to the tendency of the brake pad to bounce up, thereby changing the placement position of the brake pad and ultimately affecting the subsequent powder spraying quality. The contact piece is used to guide the airflow so that the airflow passes evenly from the upper side of the brake pad, thereby using the airflow to remove dust on the upper side of the brake pad to ensure the cleanliness of the brake pad and improve the subsequent powder spraying quality. The sliding rod is intercepted by the damping piece, thereby further reducing the tendency of the brake pad to bounce up, thereby further improving the accuracy of the brake pad placement position. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention;

[0016] Figure 2 It is a schematic diagram of the three-dimensional structure when the upper arm of the present invention drives the lifting cylinder to move;

[0017] Figure 3 It is a schematic diagram of the three-dimensional structure of the movable frame and the sliding rod of the present invention when they slide relative to each other;

[0018] Figure 4 It is a three-dimensional structural cross-sectional view of the movable frame and the middle piece of the present invention;

[0019] Figure 5 It is a three-dimensional structural exploded view of the mobile frame and the parts thereon of the present invention.

[0020] Markings in the accompanying drawings: 101, conveyor belt, 102, brake pad, 1, frame, 2, electric control box, 3, truss structure, 4, electric slider, 5, first servo motor, 6, second servo motor, 7, upper arm, 8, lifting cylinder, 9, moving frame, 10, pneumatic clamp, 1101, sliding rod, 1102, elastic element, 1103, middle piece, 1104, contact piece, 1201, sliding plate, 1202, cavity, 1203, sliding piece, 1204, deflection piece, 1205, limit groove, 13, one-way valve, 1401, deflection frame, 1402, damping piece. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention are described clearly and completely below, wherein “first” and “second” and the like are used only to distinguish between various parts and cannot be used as factors to limit the present application. 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 making creative work are within the scope of protection of the present invention.

[0022] like Figure 1 and Figure 2 As shown in the figure, an embodiment of the present invention is proposed, which proposes an automatic feeding device for a brake pad processing production line to solve the problem that the existing truss mechanism will produce a lot of noise when transferring the brake pad at high speed, and the servo system has a large positioning error due to the inertia of the equipment, including: a frame 1, on which a machine vision module is arranged; an electric control box 2 and a truss structure 3, both of which are installed on the frame 1, and the truss structure 3 is installed with an electric slider 4; a first servo motor 5 and a second servo motor 6, both of which are installed on the electric slider 4; a large arm 7, fixedly connected to the output shaft of the first servo motor 5; a lifting cylinder 8, installed on the large arm The arm 7, the lifting cylinder 8 and the output shaft on the second servo motor 6 are connected through a transmission module; the moving frame 9 is fixedly connected to the telescopic end of the lifting cylinder 8; the pneumatic clamp 10 has multiple parts, all of which are rotatably connected to the moving frame 9, and a rubber sheet is provided on the inner side of the pneumatic clamp 10 for stably clamping the brake pad 102. The pneumatic clamp 10 is connected to an external air pump, and the machine vision module, the electric slider 4, the first servo motor 5, the second servo motor 6, the lifting cylinder 8 and the pneumatic clamp 10 are all electrically connected to the electric control box 2; the anti-vibration mechanism is arranged on the moving frame 9, and is used to stabilize the brake pad 102.

[0023] In the above scheme, the conveyor belt 101 is used to transport the brake pad 102, and the machine vision module is used to monitor the position and placement status of the brake pad 102 on the conveyor belt 101. By identifying the information and measuring the longitudinal displacement of the brake pad 102, the grasping point to be walked to is calculated, and the machine vision module sends a positioning walking instruction (to the electronic control component), and finally drives the pneumatic clamp 10 to grasp the brake pad. The transmission module includes but is not limited to a sprocket chain transmission structure. There are several protrusions on the surface of the rubber sheet on the pneumatic clamp 10, which are used to increase the friction between the brake pad 102 and the brake pad 102. When the brake pad 102 on the conveyor belt 101 is loaded, the machine vision module detects the position and placement status of the brake pad 102 on the conveyor belt 101, and then transmits the information to the electric control box 2, thereby controlling the upper arm 7 and the movable frame 9 through the electric slider 4, the first servo motor 5, the second servo motor 6 and the lifting cylinder 8. and the parts thereon, and finally the brake pad 102 is grabbed by the pneumatic clamp 10, and the brake pad 102 is transferred to the powder spraying equipment (completing the loading work). In the process, the displacement generated by the rotation of the big arm 7 is used to replace the displacement generated by the horizontal movement of the truss structure 3, thereby reducing the invalid load at the end of the entire device, so that the overall device is calculated by trigonometric functions and then the pneumatic clamp 10 is moved to the actual physical coordinates through the left and right movement of the electric slider 4 and the rotation of the big arm 7. In this way, while improving the loading efficiency, the vibration of the device is reduced, and the accuracy of placing the brake pad 102 is improved. After the pneumatic clamp 10 moves the brake pad 102 to the position required for subsequent powder spraying, the pneumatic clamp 10 releases the brake pad 102, thereby realizing the orderly placement of the brake pad 102 and facilitating the subsequent spraying process to spray the brake pad 102. The entire placement process of the device is a continuous process, and the above only describes the process of one placement.

[0024] like Figure 3-Figure 5 As shown, the anti-vibration mechanism includes: a sliding rod 1101, which is slidably connected to the moving frame 9, and an elastic element 1102 is fixedly connected between the sliding rod 1101 and the moving frame 9; an intermediate piece 1103, which is fixedly connected to the sliding rod 1101; and a contact piece 1104, which is fixedly connected to the intermediate piece 1103, and the contact piece 1104 is made of soft material and is used to gently contact the brake pad 102.

[0025] In the above scheme, the elastic element 1102 is a tension spring, which is used to reset the sliding rod 1101. In the process of clamping the brake pad 102, the telescopic end of the lifting cylinder 8 drives the movable frame 9 to move downward, and the downward movement of 9 drives the pneumatic clamp 10 to move downward together. The movable frame 9 drives the sliding rod 1101 to move downward together through the elastic element 1102, and the sliding rod 1101 drives the contact piece 1104 to move downward together through the intermediate piece 1103. After the contact piece 1104 moves downward to contact the brake pad 102, the movable frame 9 continues to move downward, and the movable frame 9 and the sliding rod 1101 slide relative to each other, and the elastic element 1102 is stretched. The pneumatic clamp 10 stops after moving downward to a predetermined position, and then clamps the brake pad 102.

[0026] In the process of placing the brake pad 102 on the powder spraying equipment, when the pneumatic clamp 10 releases the brake pad 102, the brake pad 102 begins to move downward under the action of its own gravity, and at the same time, the sliding rod 1101 also moves downward under the action of its own gravity and the pulling force of the elastic element 1102. During the process, the contact piece 1104 is always in close contact with the brake pad 102. When the brake pad 102 contacts the powder spraying equipment, a collision occurs between the brake pad 102 and the powder spraying equipment. At this time, the brake pad 102 has a tendency to bounce upward, but because the contact piece 1104 always presses the brake pad 102 downward, the upward tendency of the brake pad 102 is reduced, thereby preventing the brake pad 102 from deviating from the predetermined position due to the upward bounce. This changes the distance between several brake pads 102, resulting in uneven distribution of powder on the brake pad 102 during the subsequent powder spraying process, thereby reducing the powder spraying quality.

[0027] like Figure 4 and Figure 5 As shown, it also includes: a sliding plate 1201, which is slidably connected to the middle piece 1103, the middle piece 1103 is provided with a cavity 1202, the sliding plate 1201 is located in the cavity 1202, the contact piece 1104 is shell-shaped, and the contact piece 1104 is connected to the cavity 1202; a sliding piece 1203, which is slidably connected to the middle piece 1103, the sliding piece 1203 is fixedly connected to the sliding plate 1201; a deflection piece 1204, which is fixedly connected to the pneumatic clamp 10, the deflection piece 1204 is provided with a limiting groove 1205, the limiting groove 1205 is squeezed and matched with the sliding piece 1203, the limiting groove 1205 is in an inclined state, and the symmetry line on the limiting groove 1205 is perpendicular to the rotation axis between the pneumatic clamp 10 and the movable frame 9.

[0028] In the above scheme, during the relative sliding of the movable frame 9 and the sliding rod 1101, the sliding plate 1201 moves downward in the cavity 1202 and squeezes the air in the lower part of the cavity 1202. The squeezed air enters the contact piece 1104, and then the air is discharged from the gap between the contact piece 1104 and the brake pad 102. During the process, the air takes away the dust on the upper side of the brake pad 102, so as to ensure the subsequent powder spraying quality. During the process of the pneumatic clamp 10 clamping the brake pad 102, the pneumatic clamp 10 and the movable frame 9 rotate relatively, and the pneumatic clamp 10 drives the deflection piece 1204 to rotate together, and the limiting groove 1205 starts to squeeze the sliding piece 1203, and the sliding piece 1203 moves upward and slides relatively with the middle piece 1103. The sliding piece 1203 drives the sliding plate 1201 to move upward together, and the cavity 1201 between the sliding plate 1201 and the contact piece 1104 is 02, thereby further fixing the brake pad 102, so as to avoid the pneumatic clamp 10 failing to correctly clamp the brake pad 102 due to unexpected circumstances, causing the brake pad 102 to fall, affecting the normal feeding process, and then when placing the brake pad 102 on the powder spraying equipment, the pneumatic clamp 10 and the moving frame 9 rotate in the opposite direction relative to each other, and the sliding member 1203 drives the sliding plate 1201 to gradually reset, and the pressure in the cavity 1202 between the sliding plate 1201 and the contact member 1104 is gradually restored, that is, the adsorption of the brake pad 102 is gradually lost. In this process, the brake pad 102 and the contact member 1104 are "fixedly connected", thereby increasing the stability of the process of placing the brake pad 102, and avoiding the relative movement of the brake pad 102 and the contact member 1104 due to the rebound tendency, thereby changing the placement position of the brake pad 102, and ultimately affecting the subsequent powder spraying quality.

[0029] like Figure 4 and Figure 5 As shown, it also includes: a plurality of one-way valves 13 arranged at intervals, all installed on the side of the middle piece 1103 close to the contact piece 1104, the one-way valve 13 is connected to the cavity 1202, the contact piece 1104 is an inverted funnel shape, and the plurality of one-way valves 13 are all located above the upper side of the contact piece 1104, for guiding the gas coming out of the cavity 1202.

[0030] In the above scheme, the upper part of the contact piece 1104 is cylindrical and the lower part is truncated cone-shaped. The allowed flow direction of the one-way valve 13 is from top to bottom, which is used to blow air to the brake pad 102, thereby affecting the normal adsorption of the brake pad 102. The diameter of the truncated cone on the contact piece 1104 gradually increases from top to bottom, which is used to guide the airflow to the surroundings. In the process of the sliding plate 1201 moving downward in the cavity 1202, the squeezed air passes through the one-way valve 13 and then blows directly to the upper side of the contact piece 1104, and then the upper side of the contact piece 1104 guides the airflow, so that the airflow passes evenly from the upper side of the brake pad 102, thereby utilizing the airflow to remove dust on the upper side of the brake pad 102, thereby ensuring the cleanliness of the brake pad 102 and improving the subsequent powder spraying quality.

[0031] like Figure 3-Figure 5 As shown, it also includes: a deflection frame 1401, fixedly connected to the pneumatic clamp 10; a damping member 1402, fixedly connected to the moving frame 9, the damping member 1402 is squeezed and matched with the sliding rod 1101, the damping member 1402 is fixedly connected to the deflection frame 1401, and one side of the damping member 1402 is a folded surface for blocking the sliding rod 1101 to different degrees.

[0032] In the above scheme, the damping member 1402 is made of rubber material and is used to block the sliding rod 1101. The upper slope of the folded surface on the damping member 1402 is smaller than the lower slope, which facilitates the movement of the sliding rod 1101. When viewed from above, the folded surface on the damping member 1402 partially blocks the sliding rod 1101. During the relative sliding of the moving frame 9 and the sliding rod 1101, the sliding rod 1101 moves upward relative to the moving frame 9, and the sliding rod 1101 gradually squeezes the damping member 1402. After the moving frame 9 stops moving downward, the upper part of the sliding rod 1101 passes through the damping member 1402, and then clamps the brake pad 102.

[0033] During the process of placing the brake pad 102 (the process of the sliding rod 1101 moving downward), the sliding rod 1101 is squeezed by the folded surfaces of the upper and lower parts of the damping member 1402 after passing through the upper part of the folded surface, thereby blocking the sliding rod 1101 and further reducing the tendency of the brake pad 102 to bounce upward, thereby further improving the accuracy of the placement of the brake pad 102.

[0034] During the relative rotation between the pneumatic clamp 10 and the movable frame 9 (the process of clamping the brake pad 102), the pneumatic clamp 10 drives the deflection frame 1401 to rotate together, and the deflection frame 1401 pulls the upper part of the damping member 1402 outward. During the process of placing the brake pad 102, the deflection frame 1401 drives the damping member 1402 to quickly reset. The damping member 1402 resets, and under the action of inertia, the deflection frame 1401 has a tendency to further squeeze the damping member 1402 inward, that is, the damping member 1402 has a tendency to further deform inward, thereby increasing the squeezing effect on the sliding rod 1101, thereby improving the stability when placing the brake pad 102.

[0035] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. 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. An automatic feeding device for a brake pad processing production line, characterized in that: Included are: A frame (1), wherein a machine vision module is arranged on the frame (1); The electric control box (2) and the truss structure (3) are both installed on the frame (1), and the truss structure (3) is installed with an electric slider (4); A first servo motor (5) and a second servo motor (6), both mounted on the electric slider (4); A large arm (7) fixedly connected to the output shaft of the first servo motor (5); A lifting cylinder (8) is mounted on the upper arm (7), and the lifting cylinder (8) is connected to an output shaft on the second servo motor (6) via a transmission module; A movable frame (9) fixedly connected to the telescopic end of the lifting cylinder (8); A plurality of pneumatic grippers (10) are rotatably connected to the movable frame (9); the pneumatic grippers (10) are connected to an external air pump; and the machine vision module, the electric slider (4), the first servo motor (5), the second servo motor (6), the lifting cylinder (8) and the pneumatic grippers (10) are all electrically connected to the electric control box (2); An anti-vibration mechanism is arranged on the movable frame (9) and is used to stabilize the brake pad (102).

2. The automatic feeding device for a brake pad processing production line according to claim 1, characterized in that: A rubber sheet is provided on the inner side of the pneumatic clamp (10) for stably clamping the brake pad (102).

3. The automatic feeding device for a brake pad processing production line according to claim 2, characterized in that: The anti-vibration mechanism comprises: A sliding rod (1101) is slidably connected to the moving frame (9), and an elastic element (1102) is fixedly connected between the sliding rod (1101) and the moving frame (9); A middle piece (1103) fixedly connected to the sliding rod (1101); The contact piece (1104) is fixedly connected to the middle piece (1103).

4. The automatic feeding device for a brake pad processing production line according to claim 3, characterized in that: The contact piece (1104) is made of a soft material and is used to gently contact the brake pad (102).

5. The automatic feeding device for a brake pad processing production line according to claim 3, characterized in that: Also included are: A sliding plate (1201) is slidably connected to the middle piece (1103); the middle piece (1103) is provided with a cavity (1202); the sliding plate (1201) is located in the cavity (1202); the contact piece (1104) is shell-shaped, and the contact piece (1104) is in communication with the cavity (1202); A sliding member (1203) is slidably connected to the middle member (1103), and the sliding member (1203) is fixedly connected to the sliding plate (1201); The deflection member (1204) is fixedly connected to the pneumatic clamp (10), and the deflection member (1204) is provided with a limiting groove (1205), and the limiting groove (1205) is pressed and matched with the sliding member (1203).

6. The automatic feeding device for a brake pad processing production line according to claim 5, characterized in that: The limiting groove (1205) is in an inclined state, and the symmetry line on the limiting groove (1205) is perpendicular to the rotation axis between the pneumatic clamp (10) and the moving frame (9).

7. The automatic feeding device for a brake pad processing production line according to claim 5, characterized in that: Also included are: The one-way valves (13) are multiple and arranged at intervals, and are all installed on a side of the middle piece (1103) close to the contact piece (1104). The one-way valves (13) are in communication with the cavity (1202).

8. The automatic feeding device for a brake pad processing production line according to claim 7, characterized in that: The contact piece (1104) is in the shape of an inverted funnel, and the plurality of one-way valves (13) are located above the upper side of the contact piece (1104) and are used to guide the gas coming out of the cavity (1202).

9. The automatic feeding device for a brake pad processing production line according to claim 3, characterized in that: Also included are: A deflection frame (1401) fixedly connected to the pneumatic clamp (10); The damping member (1402) is fixedly connected to the movable frame (9), the damping member (1402) is extruded and matched with the sliding rod (1101), and the damping member (1402) is fixedly connected to the deflection frame (1401).

10. The automatic feeding device for a brake pad processing production line according to claim 9, characterized in that: One side of the damping member (1402) is a folded surface, which is used to provide different degrees of blocking to the sliding rod (1101).

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