A brake pad fixture for a CNC drilling machine

Abstract

The present invention relates to the technical field of brake pad processing, and discloses a brake pad fixture for a CNC drilling machine, comprising a frame, a positioning seat rotatably connected to the frame, and a rotating drive member driving the positioning seat to rotate, the positioning seat comprising a seat body, a stop seat provided on the seat body, a clamping arm hinged to the seat body, and a clamping drive member driving the clamping arm to rotate, the seat body being provided with a supporting surface, and the stop seat and the clamping arm being distributed on both sides of the seat body. The present invention has the following advantages and effects: the present invention ingeniously designs the clamping arm and the tensioning rope to jointly clamp and fix the arc-shaped brake pad, and the clamping is firm. The clamping drive member and the swing drive member are both cylinders, which are efficient and quick in operation, thereby improving the clamping efficiency. Two supporting surfaces are provided on the seat body, and when one of the pressure-bearing surfaces is clamping the brake pad to be processed, the other supporting surface can simultaneously remove the processed brake pad, and is efficient in use.

Description

Technical Field

[0001] The present invention relates to the technical field of brake pad processing, in particular to a brake pad fixture for a numerical control drilling machine. Background Art

[0002] Brake pads, also known as brake shoes, are critical safety components in a vehicle's braking system, decisive for braking performance. Brake pads include disc brake pads for disc brakes and drum brake pads for drum brakes. During the manufacturing process, drum brake pads require drilling.

[0003] A Chinese patent application with application publication number CN104646715A discloses an automatic drilling machine for automobile brake pads, which includes a frame with a drilling device arranged inside the frame, a rotating hub for driving the brake pads to rotate in one direction arranged below the drilling device, the rotating axis of the rotating hub is in the horizontal direction, the side of the rotating hub is connected to a drilling die base, the drilling die base is provided with an arc surface matching the curvature of the brake pad, a loading device for conveying the brake pads to the drilling die base is provided on the front side of the rotating hub, and a material removal device for removing the brake pads from the drilling die base is provided on the left or right side of the rotating hub.

[0004] The above patent has the following problems: After the brake pad is placed in the drilling die, the clamping device uses bolts to tighten the arc-shaped spring sheet, and the brake pad is pressed into position by the arc-shaped spring sheet. However, during the drilling process of the brake pad, the brake pad needs to be accurately and firmly clamped. First, the clamping method of the arc-shaped spring sheet is not firm. The elastic force provided by the elastic element is unlikely to be very large as a clamping force, and fatigue is prone to occur during long-term and repeated use, resulting in unstable clamping. Second, the arc-shaped spring sheet is tightened by bolts, and the bolts need to be repeatedly rotated to tighten and loosen the arc-shaped spring sheet. Bolts are mostly used as fasteners both in industrial equipment and in daily life. The above patent requires repeated rotation of the bolts, which is likely to cause wear on the bolt threads. Summary of the Invention

[0005] The purpose of the present invention is to provide a brake pad clamp for a numerically controlled drilling machine, which has the effects of being stable, reliable and efficient when clamping the brake pad.

[0006] The above technical objectives of the present invention are achieved through the following technical solutions: A brake pad clamp for a CNC drilling machine, comprising a frame, a positioning seat rotatably connected to the frame, and a rotating drive component that drives the positioning seat to rotate, the positioning seat comprising a seat body, a stop seat provided on the seat body, a clamping arm hinged to the seat body, and a clamping drive component that drives the clamping arm to rotate, the seat body is provided with a supporting surface, the stop seat and the clamping arm are distributed on both sides of the seat body; the seat body is also provided with a connecting part, a swing arm rotatably connected to the seat body, and a swing drive component that drives the swing arm to rotate, a tensioning rope is connected between the connecting part and the swing arm, and the tensioning rope passes around the supporting surface.

[0007] By adopting the above technical solution, the brake pad is placed on the supporting surface, and the clamping drive element drives the clamping arm to rotate, which presses the brake pad against the block. Due to the curved shape of the brake pad, the brake pad can easily be forced away from the supporting surface by relying solely on the coordination between the clamping arm and the block. The present invention provides a swing arm, a connecting portion, and a tensioning rope. The swing arm tightens the tensioning rope to clamp the curved brake pad against the supporting surface, thereby achieving clamping of the brake pad.

[0008] When the positioning seat rotates until the brake pad is downward, the swing arm loosens the tensioning rope, and the compacting drive drives the compacting arm to rotate and disengage from the brake pad. The brake pad falls downward under the action of gravity, realizing the loosening and discharge of the brake pad.

[0009] The present invention is further configured as follows: the seat body is formed with two supporting surfaces, the number of the clamping arm, the clamping drive member, and the swing arm are all two, and the two swing arms are connected and share one swing drive member.

[0010] By adopting the above technical solution, two supporting surfaces are set. When one of the supporting surfaces is located at the top, the brake pad to be processed can be clamped. At the same time, when the other supporting surface is located at the bottom, the processed brake pad can be released, thereby improving the clamping and unloading efficiency of the brake pad fixture.

[0011] The present invention is further configured such that the two supporting surfaces are symmetrically distributed on the seat.

[0012] The present invention is further configured as follows: the connecting portion includes a connecting shaft rotatably connected to the seat body and a connecting seat installed on the connecting shaft.

[0013] By adopting the above technical solution, the connecting seat is used to connect with the tensioning rope, and the connecting part can rotate relative to the seat body, providing a certain activity space for the tensioning rope to be tightened and loosened, so that the tensioning rope can fit well on the surface of the brake pad when tightening the brake pad.

[0014] The present invention is further configured as follows: the pressing arm is provided with a guide groove, and the tensioning rope passes through the guide groove.

[0015] By adopting the above technical solution, the setting of the guide groove can guide and limit the position of the tensioning rope, thereby preventing the position of the tensioning rope from being misaligned with the preset position during the tensioning and loosening process.

[0016] The present invention is further configured such that: the tensioning rope is a steel wire rope.

[0017] By adopting the above technical solution, the steel wire rope has a certain toughness and strength, which can well tighten the brake pad, and at the same time will not be too loose after being released.

[0018] The present invention is further configured as follows: the positioning seat includes a main rotating shaft, the seat body is fixed on the main rotating shaft, and the number of the seat bodies is several.

[0019] The present invention is further configured such that: the rotary drive member is a motor.

[0020] The present invention is further configured such that: the pressing drive member and the swing drive member are both cylinders.

[0021] The beneficial effects of the present invention are:

[0022] 1. This invention uniquely designs a clamping arm and tensioning rope to clamp and secure the curved brake pad, ensuring a secure hold. Both the clamping and swinging drive elements are pneumatic cylinders, ensuring efficient and rapid operation, improving clamping efficiency.

[0023] 2. Two supporting surfaces are set on the seat body. When one of the pressure-bearing surfaces is clamping the brake pad to be processed, the other supporting surface can simultaneously remove the processed brake pad, which is highly efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0025] Figure 1 It is a structural schematic diagram of the present invention.

[0026] Figure 2 It is a schematic diagram of the seat structure of the present invention.

[0027] Figure 3 It is a schematic diagram of the exploded state of the seat body of the present invention.

[0028] In the figure, 1. frame; 2. main rotating shaft; 3. positioning seat; 31. seat body; 32. blocking seat; 33. clamping arm; 331. guide groove; 34. swing arm; 35. connecting part; 351. connecting rotating shaft; 352. connecting seat; 36. supporting surface; 4. rotating driving member; 5. swinging driving member; 6. clamping driving member. DETAILED DESCRIPTION

[0029] The technical solutions of the present invention will be described clearly and completely below with reference to specific embodiments. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are also within the scope of protection of the present invention.

[0030] A brake pad fixture for a CNC drilling machine, such as Figures 1 to 3 As shown, it includes a frame 1, a main shaft 2 rotatably connected to the frame 1, and a rotating drive member 4 that drives the main shaft 2 to rotate, and the rotating drive member 4 is a motor. The positioning seat 3 includes two base bodies 31, and the two base bodies 31 are both mounted and fixed on the main shaft 2. The base body 31 is provided with a stopper 32, two clamping arms 33 hinged to the base body 31, and two clamping drive members 6 that respectively drive the two clamping arms 33 to rotate. The clamping drive member 6 is a cylinder, the body of which is hinged to the base body 31, and the piston rod is hinged to the clamping arm 33. Two supporting surfaces 36 are provided on the base body 31, and a clamping arm 33 and a stopper 32 are distributed on both sides of each supporting surface 36. The two supporting surfaces 36 are symmetrically distributed on the base body 31.

[0031] The base 31 is also provided with two connecting portions 35, two swing arms 34, and a swing drive member 5. The connecting portion 35 includes a connecting shaft 351 rotatably connected to the base 31 and a connecting seat 352 mounted and fixed to the connecting shaft 351. The two swing arms 34 are fixed together and rotatably connected to the base 31. The swing drive member 5 is a cylinder, whose cylinder body is hinged to the base 31 and whose piston rod is hinged to the swing arms 34. The two swing arms 34 correspond to the two connecting portions 35 in a one-to-one manner. A tensioning rope is provided between the swing arms 34 and the connecting portions 35. The ends of the tensioning rope are respectively fixed to the swing arms 34 and the connecting seat 352. The tensioning rope is preferably a steel wire rope. A guide groove 331 is formed in the pressure arm 33. The tensioning rope passes through the guide groove 331 and then around the supporting surface 36.

[0032] Working Principle: The rotary drive 4 rotates the main shaft 2, which in turn rotates the positioning seat 3 until one support surface 36 is located at the top and the other support surface 36 is located at the bottom. The brake pad to be processed is placed on the upper support surface 36. The clamping drive 6 rotates the clamping arm 33, which presses the brake pad against the stop 32. The swing drive 5 rotates the swing arm 34, which tightens the tensioning rope above, tightening the brake pad to the support surface 36. Simultaneously, the tensioning rope below is released by the swing arm 34, facilitating the removal of the brake pad. After the brake pad at the upper supporting surface 36 is drilled, the rotary drive part 4 drives the main shaft 2 to rotate 180 degrees. At this time, the supporting surface 36 originally located at the top moves to the bottom, and the supporting surface 36 originally located at the bottom moves to the top. Repeat the above operation. After the tensioning rope below is loosened, the clamping drive part 6 below drives the clamping arm 33 to rotate and disengage from the brake pad. The brake pad falls downward under the action of gravity and leaves the brake pad clamp.

Claims

1. A brake pad fixture for a CNC drilling machine, characterized by: The invention comprises a frame (1), a positioning seat (3) rotatably connected to the frame (1), and a rotating driving member (4) for driving the positioning seat (3) to rotate; the positioning seat (3) comprises a seat body (31), a stop seat (32) provided on the seat body (31), a clamping arm (33) hinged to the seat body (31), and a clamping driving member (6) for driving the clamping arm (33) to rotate; the seat body (31) is provided with a supporting surface (36); the stop seat (32) and the clamping arm (33) are distributed on both sides of the seat body (31); the seat body (31) is also provided with a connecting portion (35), a swing arm (34) rotatably connected to the seat body (31), and a swing arm (34) for driving the swing arm (34) to rotate. The driving member (5) is provided with a tensioning rope connected between the connecting portion (35) and the swing arm (34), and the tensioning rope passes around the supporting surface (36); the seat body (31) is formed with two supporting surfaces (36), the pressing arm (33), the pressing driving member (6), and the swing arm (34) are all two in number, and the two swing arms (34) are connected and share one swing driving member (5); the pressing arm (33) is provided with a guide groove (331), and the tensioning rope passes through the guide groove (331); the connecting portion (35) includes a connecting shaft (351) rotatably connected to the seat body (31) and a connecting seat (352) installed on the connecting shaft (351).

2. The brake pad fixture for a CNC drilling machine according to claim 1, characterized in that: The two supporting surfaces (36) are symmetrically distributed on the seat (31).

3. The brake pad fixture for a CNC drilling machine according to claim 1, characterized in that: The tensioning rope is a steel wire rope.

4. The brake pad fixture for a CNC drilling machine according to claim 1, characterized in that: The positioning seat (3) comprises a main rotating shaft (2), and the seat body (31) is fixed on the main rotating shaft (2). The number of the seat bodies (31) is several.

5. The brake pad fixture for a CNC drilling machine according to claim 1, characterized in that: The rotary driving member (4) is a motor.

6. The brake pad fixture for a CNC drilling machine according to claim 1, characterized in that: The pressing drive member (6) and the swing drive member (5) are both cylinders.

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