Adjustable fixing clamp for brake shaft machining

Abstract

The utility model relates to the technical field of brake shaft machining, in particular to an adjustable fixing clamp for brake shaft machining, which comprises a machining table bottom plate, an anti-slip contact plate and a floating lifting component, a driving motor is mounted at the side end of the machining table bottom plate, and an output shaft of the driving motor penetrates through the machining table bottom plate to be connected with a bidirectional lead screw. Limiting grooves are formed in the upper end face of the machining table bottom plate in a bilateral symmetry mode, two movable sleeve blocks are in threaded connection with the outer end of the bidirectional lead screw in a bilateral symmetry mode, the two movable sleeve blocks are slidably connected into the limiting grooves, and clamping push plates are fixedly connected to the upper ends of the two movable sleeve blocks. The clamping force of brake shafts with different diameters can be automatically adjusted through the pressure-bearing spring, the anti-skid contact plate and the wrapping and attaching plate in the brake shaft fixing sleeve, the fixing roller, the attaching roller and the tension spring can play a role in lifting the brake shafts, and the problem of sagging or deformation is solved.

Description

Technical Field

[0001] This utility model relates to the field of brake shaft processing technology, and in particular to an adjustable fixing fixture for brake shaft processing. Background Technology

[0002] Brake shafts are key components of braking systems in the automotive, machinery and other fields. They are generally slender shaft parts, usually with cylindrical sections of different diameters, shoulders, keyways, threads and other structures. Fixtures are essential in the production and processing of brake shafts. They can accurately position and clamp the brake shaft, ensuring the stability of the shaft position during processing and reducing processing errors.

[0003] Existing clamping fixtures mostly use two pneumatic push rods in different directions for clamping and fixing. Although they can meet the clamping and fixing of some brake shafts, they have some drawbacks. They are difficult to adapt to when processing brake shafts of different specifications, requiring frequent clamping changes or complex adjustments to the clamps. Furthermore, the fixing is not stable, and the clamps are prone to sagging or deformation due to their own weight during processing, which reduces the processing accuracy.

[0004] Therefore, the existing fixing fixtures are difficult to adapt to brake shafts of different sizes, requiring frequent fixture changes or complex adjustments. Furthermore, they are not stable and are prone to sagging or deformation under their own weight during processing, reducing processing accuracy. This utility model can automatically adjust the clamping force of brake shafts of different diameters through the pressure spring, anti-slip contact plate, and wrapping and bonding plate inside the brake shaft fixing sleeve. The fixing roller, bonding roller, and tension spring can support the brake shaft, solving the problem of sagging or deformation. Utility Model Content

[0005] To overcome the problem that existing fixed fixtures are difficult to adapt to brake shafts of different sizes, require frequent fixture changes or complex adjustments, and are not stable, they are prone to sagging or deformation due to their own weight during machining, resulting in a decrease in machining accuracy.

[0006] The technical solution of this utility model is as follows: an adjustable fixing fixture for machining brake shafts, comprising a machining table base plate, an anti-slip contact plate, and a floating support assembly. A drive motor is installed on the side end of the machining table base plate. The output shaft of the drive motor passes through the machining table base plate and is connected to a bidirectional lead screw. Limiting grooves are symmetrically formed on the upper surface of the machining table base plate. Two movable sleeves are symmetrically threaded to the outer end of the bidirectional lead screw. The two movable sleeves are slidably connected to the inside of the limiting grooves. A clamping push plate is fixedly connected to the upper end of each of the two movable sleeves. A brake shaft fixing sleeve is rotatably connected inside the clamping push plate. A floating support assembly is provided above the machining table base plate. A pressure spring is provided inside the brake shaft fixing sleeve. An anti-slip contact plate is connected to the side end of the pressure spring. A damper is provided between the pressure spring and the anti-slip contact plate.

[0007] Preferably, the side end of the brake shaft fixing sleeve is hinged with a wrapping and bonding plate, and the inner side of the anti-slip contact plate is hinged with a traction plate. The wrapping and bonding plate and the traction plate are arranged in a ring and are equal in number.

[0008] Preferably, the side end of the traction plate is hinged to the inside of the wrapping and bonding plate, and a rubber contact block is fixed to the inner end of the wrapping and bonding plate. A rotary motor is installed on the side end of the clamping push plate on the left side, and the output shaft of the rotary motor passes through the clamping push plate and is connected to the central shaft of the left brake shaft fixing sleeve.

[0009] Preferably, the floating lifting assembly includes an installation cavity, a first electric telescopic rod, a lifting plate, an installation suspension, a fixed roller, a movable tilting plate, a second electric telescopic rod, an extension installation block, an installation ear plate, a fitting roller, and a tension spring. The processing table base plate has two installation cavities arranged longitudinally inside, and the first electric telescopic rod is installed inside the two installation cavities.

[0010] Preferably, the output end of the first electric telescopic rod is fixedly connected to a lifting plate, the upper end of the lifting plate is fixedly connected to a mounting suspension, and the inner side of the mounting suspension is rotatably connected to a fixed roller.

[0011] Preferably, a movable tilting plate is rotatably connected to the inner side of the mounting suspension, and a second electric telescopic rod is hinged to the upper end face of the lifting plate, with the output end of the second electric telescopic rod hinged to the outer side of the movable tilting plate.

[0012] Preferably, an extension mounting block is fixed to the inner side of the movable tilting plate, and two mounting lugs are symmetrically hinged to both sides of the extension mounting block. A fitting roller is rotatably connected inside the two mounting lugs, and a tension spring is connected between the two mounting lugs on both sides of the extension mounting block.

[0013] The beneficial effects of this utility model are:

[0014] 1. The design of the bidirectional lead screw and movable sleeve allows the distance between the two clamping push plates to be adjusted according to the length of the brake shaft. The pressure spring, anti-slip contact plate and wrapping plate inside the brake shaft fixing sleeve can adaptively adjust the wrapping clamping force for brake shafts of different diameters. Furthermore, the rotary motor can directly drive the fixed brake shaft to rotate, facilitating various rotary processing operations and improving processing efficiency and flexibility.

[0015] 2. The first electric telescopic rod controls the lifting plate to drive the fixed roller to rise, which can lift the brake shaft and align it with the brake shaft fixed sleeve. This facilitates the two clamping push plates to push the brake shaft fixed sleeve to dock with the brake shaft to be processed. The second electric telescopic rod can drive the movable tilting plate to rotate. In conjunction with the fitting roller under the action of the tension spring, it can adaptively fit the surface of the brake shaft from multiple angles according to the diameter and shape of the brake shaft, forming multi-point support. Using this combined support structure, the weight of the brake shaft can be evenly distributed, effectively offsetting the sagging or deformation caused by its own weight. Attached Figure Description

[0016] Figure 1 The diagram shown is a three-dimensional structural schematic of the present invention.

[0017] Figure 2 The diagram shown is a three-dimensional structural schematic diagram of the brake shaft fixing sleeve of this utility model, viewed from the front cross section.

[0018] Figure 3 The diagram shown is a three-dimensional structural schematic of the rubber contact block of this utility model;

[0019] Figure 4 The diagram shown is a three-dimensional structural schematic of the fixed roller of this utility model;

[0020] Figure 5 This utility model is shown. Figure 4 A magnified three-dimensional structural diagram of point A in the middle.

[0021] Explanation of reference numerals in the attached drawings: 1. Processing table base plate; 2. Drive motor; 3. Two-way lead screw; 4. Limiting groove; 5. Movable sleeve block; 6. Clamping push plate; 7. Brake shaft fixing sleeve; 701. Bearing spring; 702. Anti-slip contact plate; 703. Wrapping and bonding plate; 704. Traction pull plate; 705. Rubber contact block; 706. Rotary motor; 101. Mounting cavity; 102. First electric telescopic rod; 103. Lifting plate; 104. Mounting suspension; 105. Fixed roller; 106. Movable tilting plate; 107. Second electric telescopic rod; 108. Extension mounting block; 109. Mounting ear plate; 110. Bonding roller; 111. Tension spring. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figures 1-5 This utility model provides an embodiment: an adjustable fixing fixture for machining brake shafts, including a machining table base plate 1, an anti-slip contact plate 702, and a floating support assembly. A drive motor 2 is installed on the side end of the machining table base plate 1. The output shaft of the drive motor 2 passes through the machining table base plate 1 and is connected to a bidirectional lead screw 3. Limiting grooves 4 are symmetrically opened on the upper end face of the machining table base plate 1. Two movable sleeves 5 are symmetrically threaded to the outer end of the bidirectional lead screw 3. The two movable sleeves 5 are slidably connected to the inside of the limiting grooves 4. A clamping push plate 6 is fixedly connected to the upper end of each of the two movable sleeves 5. A brake shaft fixing sleeve 7 is rotatably connected inside the clamping push plate 6. A floating support assembly is provided above the machining table base plate 1. A pressure spring 701 is provided inside the brake shaft fixing sleeve 7. An anti-slip contact plate 702 is connected to the side end of the pressure spring 701. A damper is provided between the pressure spring 701 and the anti-slip contact plate 702.

[0024] A wrapping and bonding plate 703 is hinged to the side end of the brake shaft fixing sleeve 7, and a traction plate 704 is hinged to the inner side of the anti-slip contact plate 702. The wrapping and bonding plate 703 and the traction plate 704 are arranged in a ring and are equal in number. After the anti-slip contact plate 702 is squeezed by the two ends of the fixed brake shaft, the traction plate 704 will pull the wrapping and bonding plate 703 to rotate around its hinge point with the brake shaft fixing sleeve 7, so that the wrapping and bonding plate 703 gradually wraps around the brake shaft.

[0025] The side end of the traction plate 704 is hinged to the inside of the wrapping and bonding plate 703. A rubber contact block 705 is fixed to the inner end of the wrapping and bonding plate 703. A rotary motor 706 is installed on the side end of the left clamping push plate 6. The output shaft of the rotary motor 706 passes through the clamping push plate 6 and is connected to the central shaft of the left brake shaft fixing sleeve 7. The rubber contact block 705 can increase the friction between the wrapping and bonding plate 703 and the surface of the brake shaft. The rotary motor 706 drives the left brake shaft fixing sleeve 7 to rotate. Since the brake shaft is fixed inside the brake shaft fixing sleeve 7, the rotation of the brake shaft can be realized.

[0026] The floating lifting assembly includes a mounting cavity 101, a first electric telescopic rod 102, a lifting plate 103, a mounting suspension 104, a fixed roller 105, a movable tilting plate 106, a second electric telescopic rod 107, an extension mounting block 108, a mounting ear plate 109, a fitting roller 110, and a tension spring 111. The processing table base plate 1 has two mounting cavities 101 arranged longitudinally inside. The first electric telescopic rod 102 is arranged inside the two mounting cavities 101. The first electric telescopic rod 102 can push the lifting plate 103 to rise or fall.

[0027] The output end of the first electric telescopic rod 102 is fixedly connected to a lifting plate 103. The upper end of the lifting plate 103 is fixedly connected to a mounting suspension 104. The inner side of the mounting suspension 104 is rotatably connected to a fixed roller 105. The fixed roller 105 can provide initial support for the brake shaft and reduce the sagging deformation of the brake shaft during the processing.

[0028] A movable tilting plate 106 is rotatably connected to the inner side of the mounting suspension 104. A second electric telescopic rod 107 is hinged to the upper end face of the lifting plate 103. The output end of the second electric telescopic rod 107 is hinged to the outer side of the movable tilting plate 106. When the second electric telescopic rod 107 is activated, its output end pushes the movable tilting plate 106 to rotate around its hinge point with the mounting suspension 104.

[0029] An extension mounting block 108 is fixedly connected to the inner side of the movable tilting plate 106. Two mounting ear plates 109 are symmetrically hinged to both sides of the extension mounting block 108. A fitting roller 110 is rotatably connected inside the two mounting ear plates 109. A tension spring 111 is connected between the two mounting ear plates 109 on both sides of the extension mounting block 108. The tension spring 111 can keep the two fitting rollers 110 in a fitting state with the brake shaft at all times, and automatically adjust the fitting angle according to the diameter and shape of the brake shaft.

[0030] Working principle: According to Figures 1-3 First, the brake shaft to be processed is placed above the fixed roller 105. Then, the second electric telescopic rod 107 is activated, and its output end pushes the movable tilting plate 106 to rotate around its hinge point with the mounting suspension 104, so that the contact roller 110 on the movable tilting plate 106 contacts the brake shaft, thereby fixing both sides of the brake shaft. The tension spring 111 can keep the two contact rollers 110 in contact with the brake shaft at all times, and automatically adjust the contact angle according to the diameter and shape of the brake shaft to achieve floating support of the brake shaft. Then, the first electric telescopic rod 102 is activated, and its output end pushes the lifting plate 103 to rise or fall, completing the docking of the fixed shaft and the brake shaft fixing sleeve 7.

[0031] according to Figures 4-5Subsequently, the drive motor 2 drives the bidirectional lead screw 3 to rotate. Since the threads on the left and right sides of the bidirectional lead screw 3 rotate in opposite directions, the two movable sleeves 5 connected to it will move towards or away from each other along the limiting groove 4 under the rotation of the bidirectional lead screw 3. When the two movable sleeves 5 move towards each other, they drive the clamping push plate 6 to move closer to each other, so that the brake shaft fixing sleeve 7 installed on the clamping push plate 6 gradually moves closer to the brake shaft. After the brake shaft enters the brake shaft fixing sleeve 7, the brake shaft will squeeze the anti-slip contact plate 702, causing the pressure spring 701 to compress. The elastic force of the pressure spring 701 acts on both sides of the brake shaft through the anti-slip contact plate 702, realizing the initial clamping of the brake shaft. As the anti-slip contact plate 702 moves inward, the traction pull plate 704 will pull the wrapping and bonding plate 703 to rotate around its hinge point with the brake shaft fixing sleeve 7, so that the wrapping and bonding plate 703 gradually wraps the brake shaft, further enhancing the fixing effect of the brake shaft.

[0032] It should be noted that the aforementioned drive motor 2, rotary motor 706, first electric telescopic rod 102 and second electric telescopic rod 107 can be powered by existing operating techniques. Whether powered by a power supply device or by an external wire, both are existing conventional operating techniques and will not be described in detail here.

[0033] The above is the entire working process of the device, and all contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An adjustable fixing clamp for machining brake shafts, comprising a machining table base plate (1), characterized in that: Also include anti-skid contact plate (702) and floating lifting assembly, the side end of the processing table bottom plate (1) is provided with a driving motor (2), the output shaft of the driving motor (2) is connected with a bidirectional screw rod (3) through the processing table bottom plate (1), the upper end surface of the processing table bottom plate (1) is symmetrically provided with a limiting groove (4), the outer end of the bidirectional screw rod (3) is symmetrically connected with two movable sleeve blocks (5), the two movable sleeve blocks (5) are slidably connected to the inside of the limiting groove (4), the upper end of the two movable sleeve blocks (5) is fixedly connected with a clamping push plate (6), the inside of the clamping push plate (6) is rotatably connected with a brake shaft fixing sleeve (7), the upper side of the processing table bottom plate (1) is provided with a floating lifting assembly, the inside of the brake shaft fixing sleeve (7) is provided with a pressure spring (701), the side end of the pressure spring (701) is connected with an anti-skid contact plate (702), a damper is arranged between the pressure spring (701) and the anti-skid contact plate (702).

2. The adjustable fixture for machining brake shafts according to claim 1, characterized in that: The side end of the brake shaft fixing sleeve (7) is hingedly connected with a wrapping fitting plate (703), the inner side of the anti-skid contact plate (702) is hingedly connected with a traction pull plate (704), the wrapping fitting plate (703) and the traction pull plate (704) are arranged in a ring shape and equal in number.

3. The adjustable fixture for machining brake shafts according to claim 2, characterized in that: The side end of the traction pull plate (704) is hingedly connected to the inside of the wrapping fitting plate (703), the inner side of the wrapping fitting plate (703) is fixedly connected with a rubber contact block (705), the side end of the left clamping push plate (6) is provided with a rotary motor (706), the output shaft of the rotary motor (706) is connected to the central shaft of the left brake shaft fixing sleeve (7) through the clamping push plate (6).

4. The adjustable fixture for machining brake shafts according to claim 1, characterized in that: The floating lifting assembly comprises a mounting cavity (101), a first electric telescopic rod (102), a lifting plate (103), a mounting suspension (104), a fixed roller (105), a movable tilt plate (106), a second electric telescopic rod (107), an extension mounting block (108), a mounting ear plate (109), a fitting roller (110) and a tension spring (111), the inside of the processing table bottom plate (1) is longitudinally provided with two mounting cavities (101), the inside of the two mounting cavities (101) is provided with a first electric telescopic rod (102).

5. The adjustable fixture for machining brake shafts according to claim 4, characterized in that: The output end of the first electric telescopic rod (102) is fixedly connected with a lifting plate (103), the upper end of the lifting plate (103) is fixedly connected with a mounting suspension (104), the inner side of the mounting suspension (104) is rotatably connected with a fixed roller (105).

6. The adjustable fixture for machining brake shafts according to claim 4, characterized in that: The inner side of the mounting suspension (104) is rotatably connected with a movable tilt plate (106), the upper end surface of the lifting plate (103) is hingedly connected with a second electric telescopic rod (107), the output end of the second electric telescopic rod (107) is hingedly connected to the outer side of the movable tilt plate (106).

7. The adjustable fixture for machining brake shafts according to claim 4, characterized in that: The inner side of the active tilt plate (106) is fixed with an extension mounting block (108), the two sides of the extension mounting block (108) are symmetrically hinged with two mounting ear plates (109), the inner sides of the two mounting ear plates (109) are rotationally connected with a matching roller (110), and the two mounting ear plates (109) on the two sides of the extension mounting block (108) are connected with a tension spring (111).

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