A fast measuring tool for flatness of caliper brake bracket

Abstract

The present invention relates to the field of inspection tools, and discloses a fast flatness measurement inspection tool for a caliper brake bracket, comprising a base, a data analyzer installed on the right side of the base, a lead screw inserted inside the base, a slide slidably connected to the top of the base, a clamping mechanism installed on the inner bottom of the slide, and a measuring mechanism installed on the top of the slide. The fast flatness measurement inspection tool for a caliper brake bracket fixes the bracket by a clamping mechanism. Since the clamping mechanism is fixed by a bracket mounting hole, and the bracket mounting hole is perpendicular to the detection plane, the detection plane is ensured to be horizontal. The measuring mechanism performs a comprehensive flatness inspection on the detection surface. Since the dial indicator performs circumferential inspection, the dial indicator is not affected by the bracket mounting hole. Then, through the coordinated use of the dial indicator and the data analyzer, the flatness between the brake calipers can be quickly inspected, and the inspection efficiency is high and the inspection is comprehensive.

Description

Technical Field

[0001] The invention relates to the technical field of inspection tools, in particular to a fast inspection tool for measuring the flatness of a caliper brake bracket. Background Art

[0002] The fixed element of the caliper brake is a brake pad consisting of a friction block with a small working area and its metal backing plate. There are 2-4 brake pads in each brake. These brake pads and their actuators are installed in a clamp-shaped bracket across the two sides of the brake disc. The installation flatness of the brake pad is the main factor that determines whether abnormal noise is generated during braking. If the bracket installation surface is not flat enough, abnormal noise will be generated during braking and the brake disc will have axial shaking, affecting the overall service life of the brake. Therefore, the caliper brake bracket needs to use a flatness measuring fixture to detect the flatness of the bracket during the processing process.

[0003] The existing caliper brake bracket does not have a matching inspection tool, the inspection time is long, and the efficiency is low. At the same time, the existing inspection tool can usually only inspect a single model, so different models of brackets require different inspection tools to match them, and the inspection cost is high. Summary of the invention

[0004] In order to realize the above purpose of being able to quickly detect the flatness between brake calipers, with high detection efficiency and comprehensive detection, being able to detect the parallelism of two groups of mounting holes while clamping the bracket, being easy to use, being applicable to brackets of different models, and having low detection cost, the present invention is achieved through the following technical scheme: a fast measuring fixture for the flatness of a caliper brake bracket, comprising a base, a data analyzer being installed on the right side of the base, a lead screw being inserted into the interior of the base, a guide column being fixedly connected to the interior of the base, a slide being slidably connected to the top of the base, a clamping mechanism being installed at the inner bottom of the slide, a measuring mechanism being installed at the top of the slide, the clamping mechanism comprising a fixing rod, the fixing rod being vertically fixedly connected to the inner bottom of the slide, a first rotating shaft being inserted into the interior of the fixing rod, The outer side of the first rotating shaft is fixedly connected to the first transmission wheel, the outer side of the first transmission wheel is meshed with a first bevel gear, the outer side of the first bevel gear is fixedly connected to the first screw, the outer side of the first screw is threadedly connected to the sliding rod, the outer side of the sliding rod is fixedly connected to the clamping plate, the measuring mechanism comprises an electric telescopic rod, the electric telescopic rod is installed on the top of the slide, the inside of the electric telescopic rod is plugged with a second rotating shaft, the bottom of the second rotating shaft is fixedly connected to a mounting plate, the top of the mounting plate is installed with a gear, the bottom of the gear is fixedly connected to the second transmission wheel, the outer side of the second transmission wheel is meshed with a second bevel gear, the outer side of the second bevel gear is fixedly connected to the second screw, the outer side of the second screw is threadedly connected to the sliding block, and the bottom of the sliding block is fixedly connected to a dial indicator.

[0005] Furthermore, the data analyzer is connected to the dial indicator, and the data analysis software in the data analyzer can collect and analyze the dial indicator data and calculate various measurement results, which can greatly improve the measurement efficiency.

[0006] Furthermore, the lead screw and the guide column both pass through the slide, and the lead screw and the slide are threadedly connected to ensure stable sliding of the slide.

[0007] Furthermore, the spiral direction of the left half of the lead screw is opposite to the spiral direction of the right half of the lead screw, so that the two sets of slides can slide synchronously in opposite directions, making the device suitable for different models of brackets.

[0008] Furthermore, the slide, the clamping mechanism and the measuring mechanism are divided into two groups, which can detect two measuring surfaces on the bracket at the same time.

[0009] Furthermore, the first rotating shaft is installed inside the fixed rod through the first motor, and the second rotating shaft is installed inside the electric telescopic rod through the second motor, so the transmission is stable.

[0010] Furthermore, the slide bar is slidably connected to the inside of the fixed bar, and the slider is slidably connected to the bottom of the mounting plate, so that the slide bar and the slider can move stably.

[0011] Furthermore, the clamping plates are divided into six groups and are evenly distributed on the outside of the fixing rod. At the same time, the clamping plates are designed to be arc-shaped, so the clamping is stable.

[0012] Furthermore, gear teeth are provided at a part of the outer side of the electric telescopic rod, and the gear teeth can mesh with the gear, so that the gear can rotate when meshing with the gear teeth.

[0013] Furthermore, the second screw rods are distributed along the axis of the mounting plate, and the mounting plate is coaxial with the fixing rod, so that the bracket mounting hole does not affect the measurement of the dial indicator.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. The fast flatness measuring fixture for the caliper brake bracket fixes the bracket through a clamping mechanism. Since the clamping mechanism is fixed by the bracket mounting hole, and the bracket mounting hole is perpendicular to the detection plane, the detection plane is ensured to be horizontal. Then, the measuring head on the dial indicator is driven to contact the detection plane through the electric telescopic rod, and then the second motor drives the second shaft to rotate, the second shaft drives the mounting plate to rotate, and the mounting plate drives the dial indicator to rotate along the mounting surface. When the mounting plate drives the gear to rotate to the gear tooth part, the gear rotates, and the gear drives the second transmission wheel to rotate. The second transmission wheel drives the dial indicator to slide relative to the mounting plate through the second screw and the slider, and the rotation radius of the dial indicator is reduced, so that the flatness of the detection surface can be fully detected. Due to the circumferential detection of the dial indicator, the dial indicator is not affected by the bracket mounting hole, and the detection is stable. Then, through the coordinated use of the dial indicator and the data analyzer, the flatness between the brake calipers can be quickly detected, and the detection efficiency is high and the detection is comprehensive.

[0016] 2. The flatness rapid measuring fixture of the caliper brake bracket drives the first rotating shaft to rotate through the first motor, the first rotating shaft drives the first transmission wheel to rotate, the first transmission wheel drives the first bevel gear to rotate, the first bevel gear drives the first screw to rotate, and the first screw drives the clamping plate to contact the inner wall of the bracket mounting hole through the sliding rod to fix the bracket. Since the two groups of clamping mechanisms are vertically distributed, when the two groups of mounting holes are not parallel, there is a large gap between the clamping plate and the mounting hole, and the fixation is unstable, so the parallelism of the mounting holes can be judged, thereby achieving the effect of clamping the bracket while detecting the parallelism of the two groups of mounting holes, which is easy to use.

[0017] 3. The flatness rapid measuring fixture of the caliper brake bracket drives the first rotating shaft to rotate through the first motor, the first rotating shaft drives the first transmission wheel to rotate, the first transmission wheel drives the first bevel gear to rotate, the first bevel gear drives the first screw to rotate, the first screw drives the clamping plate to contact the inner wall of the bracket mounting hole through the sliding rod, the clamping plate can fix brackets of different models, and at the same time, by controlling the rotation of the lead screw, the lead screw drives the two sets of slides to slide synchronously in opposite directions, the slides simultaneously change the spacing between the two sets of clamping mechanisms, and the measuring mechanism can change the spacing synchronously, and then through the cooperation of the second screw and the slider, the measuring mechanism can measure planes of different ranges, thereby achieving the effect of being applicable to brackets of different models and low detection cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a measurement schematic diagram of the present invention;

[0019] Figure 2 It is a schematic diagram of the overall front view of the present invention;

[0020] Figure 3 It is a schematic diagram of the overall top view of the present invention;

[0021] Figure 4 It is a three-dimensional schematic diagram of the clamping mechanism of the present invention;

[0022] Figure 5 It is a cross-sectional schematic diagram of the clamping mechanism of the present invention;

[0023] Figure 6 This is a schematic diagram of the measuring mechanism of the present invention from the front view axis side;

[0024] Figure 7 It is a schematic diagram of the measuring mechanism of the present invention viewed from above;

[0025] Figure 8 It is a partial schematic diagram of the electric telescopic rod of the present invention;

[0026] Fig. 9 It is a partial cross-sectional schematic diagram of the mounting plate of the present invention.

[0027] In the figure: 1. base; 2. data analyzer; 3. lead screw; 4. guide column; 5. slide; 6. clamping mechanism; 61. fixing rod; 62. first rotating shaft; 63. first transmission wheel; 64. first bevel gear; 65. first screw; 66. slide rod; 67. clamping plate; 7. measuring mechanism; 71. electric telescopic rod; 72. second rotating shaft; 73. mounting plate; 74. gear; 75. second transmission wheel; 76. second bevel gear; 77. second screw; 78. slide block; 79. dial indicator. DETAILED DESCRIPTION

[0028] 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.

[0029] The embodiment of the fast flatness measurement fixture for the caliper brake bracket is as follows:

[0030] Embodiment 1

[0031] See also Figure 1-Figure 5A fast measuring fixture for the flatness of a caliper brake bracket includes a base 1, a data analyzer 2 is installed on the right side of the base 1, and the data analyzer 2 is connected to a dial indicator 79. The data analysis software in the data analyzer 2 can collect and analyze the data of the dial indicator 79, and calculate each measurement result, which can greatly improve the measurement efficiency. A lead screw 3 is inserted into the base 1, and the lead screw 3 is driven by a motor, and the motor and the first motor are both controlled by a control switch on the outside of the base 1. The lead screw 3 and the guide column 4 both pass through the slide 5, and the lead screw 3 is threadedly connected to the slide 5, so that the slide 5 can slide stably, and the spiral direction of the left half of the lead screw 3 is opposite to the spiral direction of the right half of the lead screw 3, so that the two groups of slides 5 can slide synchronously in the opposite direction, so that the device can be suitable for different types of brackets, the base 1 is fixedly connected with the guide column 4, the top of the base 1 is slidably connected with the slide 5, and the inner bottom of the slide 5 is installed with a clamping mechanism 6, and the slide 5 and the clamping mechanism The mechanism 6 is divided into two groups, which can simultaneously detect two measuring surfaces on the bracket. The clamping mechanism 6 includes a fixed rod 61, which is vertically fixedly connected to the inner bottom of the slide 5. A first rotating shaft 62 is inserted into the interior of the fixed rod 61, and the first rotating shaft 62 is installed in the interior of the fixed rod 61 through a first motor. The second rotating shaft 72 is installed in the interior of the electric telescopic rod 71 through a second motor. The transmission is stable. A first transmission wheel 63 is fixedly connected to the outer side of the first rotating shaft 62, and a first bevel gear 64 is meshed on the outer side of the first transmission wheel 63. A first screw 65 is fixedly connected to the outer side of the first bevel gear 64, and a sliding rod 66 is threadedly connected to the outer side of the first screw 65. The sliding rod 66 is slidably connected to the interior of the fixed rod 61 so that the sliding rod 66 can move stably. A clamping plate 67 is fixedly connected to the outer side of the sliding rod 66. The clamping plate 67 is divided into six groups and is evenly distributed on the outer side of the fixed rod 61. At the same time, the clamping plate 67 is designed in an arc shape, and the clamping is stable.

[0032] Place the bracket on the base 1 and insert the clamping mechanism 6 into the bracket mounting hole. Figure 1 As shown, at this time, by controlling the first motor to rotate, the first motor drives the first rotating shaft 62 to rotate, the first rotating shaft 62 drives the first transmission wheel 63 to rotate, the first transmission wheel 63 drives the first bevel gear 64 to rotate, the first bevel gear 64 drives the first screw 65 to rotate, the first screw 65 drives the sliding rod 66 to slide, the sliding rod 66 drives the clamping plate 67 to contact the inner wall of the bracket mounting hole, the clamping mechanism 6 fixes the bracket, when the two groups of mounting holes on the bracket are not parallel, there will be a large gap between the clamping plate 67 and the inner wall of the mounting hole, and the bracket cannot be fixed horizontally, and the parallelism of the mounting holes can be judged while clamping, with strong functionality.

[0033] Embodiment 2

[0034] See also Figure 1-Figure 3 , Figure 6-Figure 9A fast measuring fixture for the flatness of a caliper brake bracket includes a base 1, a data analyzer 2 is installed on the right side of the base 1, and the data analyzer 2 is connected to a dial indicator 79. The data analysis software in the data analyzer 2 can collect and analyze the data of the dial indicator 79, and calculate each measurement result, which can greatly improve the measurement efficiency. A lead screw 3 is inserted into the base 1, and the lead screw 3 is driven by a motor, and the motor and the second motor are controlled by a control switch on the outside of the base 1. The lead screw 3 and the guide column 4 both pass through the slide 5, and the lead screw 3 is threadedly connected to the slide 5, so that the slide 5 slides stably, and the spiral direction of the left half of the lead screw 3 is opposite to the spiral direction of the right half of the lead screw 3, so that the two groups of slides 5 can slide synchronously in the opposite direction, so that the device can be suitable for different types of brackets, the base 1 is fixedly connected with the guide column 4, the top of the base 1 is slidably connected with the slide 5, and the top of the slide 5 is installed with a measuring mechanism 7, and the slide 5 and the measuring mechanism 7 are divided into two The group can detect two measuring surfaces on the bracket at the same time. The measuring mechanism 7 includes an electric telescopic rod 71, which is mounted on the top of the slide 5. A part of the outer side of the electric telescopic rod 71 is provided with gear teeth, and the gear teeth can mesh with the gear 74, so that the gear 74 can rotate when meshing with the gear teeth. A second rotating shaft 72 is inserted into the inside of the electric telescopic rod 71, and a mounting plate 73 is fixedly connected to the bottom of the second rotating shaft 72. A gear 74 is mounted on the top of the mounting plate 73, and a second transmission wheel 75 is fixedly connected to the bottom of the gear 74. A second bevel gear 76 is meshed on the outer side of the second transmission wheel 75, and a second screw 77 is fixedly connected to the outer side of the second bevel gear 76. The second screw 77 is distributed along the axis of the mounting plate 73. At the same time, the mounting plate 73 is coaxial with the fixed rod 61, so that the bracket mounting hole does not affect the measurement of the dial indicator 79. The outer side of the second screw 77 is threadedly connected to a slider 78, and the bottom of the slider 78 is fixedly connected to a dial indicator 79.

[0035] Then the electric telescopic rod 71 is controlled to descend, the electric telescopic rod 71 drives the second rotating shaft 72 to descend, the second rotating shaft 72 drives the mounting plate 73 to descend, the mounting plate 73 drives the dial indicator 79 to descend, and the measuring head on the dial indicator 79 contacts the detection plane. At this time, the second motor is controlled to be energized and rotated, the second motor drives the second rotating shaft 72 to rotate, the second rotating shaft 72 drives the mounting plate 73 to rotate, the mounting plate 73 drives the dial indicator 79 to rotate along the detection surface, and at the same time the mounting plate 73 drives the gear 74 to rotate. When the gear 74 rotates to the outer gear tooth part of the electric telescopic rod 71, the gear 74 meshes with the gear teeth, the gear 74 rotates on itself, the gear 74 drives the second transmission wheel 75 to rotate, the second transmission wheel 75 drives the second bevel gear 76 to rotate, and the second bevel gear 76 drives the second screw rod 7 7 rotates, the second screw rod 77 drives the slider 78 to slide, the slider 78 slides along the axis of the mounting plate 73, the slider 78 drives the dial indicator 79 to move along the axis of the mounting plate 73, the rotation radius of the dial indicator 79 is reduced, and as the second rotating shaft 72 rotates, the dial indicator 79 performs flatness detection on the detection surface in a circular state, thereby being able to perform a comprehensive flatness detection on the detection surface, and since the dial indicator 79 performs circumferential detection, the dial indicator 79 is not affected by the bracket mounting hole, and the detection is stable, the data analysis software in the data analyzer 2 can collect and analyze the data of the dial indicator 79, and calculate each measurement result, which can greatly improve the measurement efficiency, and at the same time, since the measuring mechanism 7 is divided into two groups, the two groups of measurement surfaces on the bracket surface can be measured simultaneously, further improving the measurement efficiency.

[0036] Embodiment 3

[0037] See also Figure 1-Figure 9 A fast measuring fixture for the flatness of a caliper brake bracket includes a base 1, a data analyzer 2 is installed on the right side of the base 1, and the data analyzer 2 is connected to a dial indicator 79. The data analysis software in the data analyzer 2 can collect and analyze the data of the dial indicator 79, and calculate each measurement result, which can greatly improve the measurement efficiency. A lead screw 3 is inserted inside the base 1, and the lead screw 3 is driven by a motor, and the motor and the first motor and the second motor are all controlled by a control switch outside the base 1. The lead screw 3 and the guide column 4 both pass through a slide 5, and the lead screw 3 is threadedly connected to the slide 5, so that the slide 5 slides stably, and the spiral direction of the left half of the lead screw 3 is opposite to the spiral direction of the right half of the lead screw 3, so that the two groups of slides 5 can slide synchronously in the opposite direction, so that the device can be suitable for different models of brackets.

[0038] A guide column 4 is fixedly connected to the inside of the base 1, a slide 5 is slidably connected to the top of the base 1, a clamping mechanism 6 is installed on the inner bottom of the slide 5, and a measuring mechanism 7 is installed on the top of the slide 5. The slide 5, the clamping mechanism 6 and the measuring mechanism 7 are divided into two groups, which can simultaneously detect two measuring surfaces on the bracket.

[0039] The clamping mechanism 6 includes a fixed rod 61, which is vertically fixedly connected to the inner bottom of the slide 5. A first rotating shaft 62 is inserted into the interior of the fixed rod 61. The first rotating shaft 62 is installed in the interior of the fixed rod 61 through a first motor. The second rotating shaft 72 is installed in the interior of the electric telescopic rod 71 through a second motor. The transmission is stable. The outer side of the first rotating shaft 62 is fixedly connected to a first transmission wheel 63. The outer side of the first transmission wheel 63 is meshed with a first bevel gear 64. The outer side of the first bevel gear 64 is fixedly connected to a first screw 65. The outer side of the first screw 65 is threadedly connected to a sliding rod 66. The sliding rod 66 is slidably connected to the interior of the fixed rod 61. The slider 78 is slidably connected to the bottom of the mounting plate 73, so that the sliding rod 66 and the slider 78 can move stably. The outer side of the sliding rod 66 is fixedly connected to a clamping plate 67. The clamping plates 67 are divided into six groups and are evenly distributed on the outer side of the fixed rod 61. At the same time, the clamping plates 67 are designed in an arc shape, and the clamping is stable.

[0040] The first motor is controlled to rotate, the first motor drives the first rotating shaft 62 to rotate, the first rotating shaft 62 drives the first transmission wheel 63 to rotate, the first transmission wheel 63 drives the first bevel gear 64 to rotate, the first bevel gear 64 drives the first screw 65 to rotate, the first screw 65 drives the sliding rod 66 to slide, the sliding rod 66 drives the clamping plate 67 to contact the inner wall of the bracket mounting hole, the clamping mechanism 6 fixes the bracket, when the two groups of mounting holes on the bracket are not parallel, there will be a large gap between the clamping plate 67 and the inner wall of the mounting hole, and the bracket cannot be fixed horizontally, and the parallelism of the mounting holes can be judged while clamping, with strong functionality.

[0041] The measuring mechanism 7 includes an electric telescopic rod 71, which is mounted on the top of the slide 5. Gear teeth are arranged at a part of the outer side of the electric telescopic rod 71, and the gear teeth can mesh with the gear 74, so that the gear 74 can rotate when meshing with the gear teeth. A second rotating shaft 72 is inserted into the inside of the electric telescopic rod 71, and a mounting plate 73 is fixedly connected to the bottom of the second rotating shaft 72. A gear 74 is mounted on the top of the mounting plate 73, and a second transmission wheel 75 is fixedly connected to the bottom of the gear 74. A second bevel gear 76 is meshed on the outer side of the second transmission wheel 75, and a second screw 77 is fixedly connected to the outer side of the second bevel gear 76. The second screw 77 is distributed along the axis of the mounting plate 73. At the same time, the mounting plate 73 is coaxial with the fixed rod 61, so that the bracket mounting hole does not affect the measurement of the dial indicator 79. The outer side of the second screw 77 is threadedly connected to a slider 78, and the bottom of the slider 78 is fixedly connected to a dial indicator 79.

[0042] The electric telescopic rod 71 is controlled to descend, the electric telescopic rod 71 drives the second rotating shaft 72 to descend, the second rotating shaft 72 drives the mounting plate 73 to descend, the mounting plate 73 drives the dial indicator 79 to descend, and the measuring head on the dial indicator 79 contacts the detection plane. At this time, the second motor is controlled to be energized and rotated, the second motor drives the second rotating shaft 72 to rotate, the second rotating shaft 72 drives the mounting plate 73 to rotate, the mounting plate 73 drives the dial indicator 79 to rotate along the detection surface, and at the same time the mounting plate 73 drives the gear 74 to rotate. When the gear 74 rotates to the outer gear tooth part of the electric telescopic rod 71, the gear 74 meshes with the gear teeth, the gear 74 rotates, the gear 74 drives the second transmission wheel 75 to rotate, the second transmission wheel 75 drives the second bevel gear 76 to rotate, and the second bevel gear 76 drives the second screw 77 The second screw rod 77 drives the slider 78 to slide, and the slider 78 slides along the axis of the mounting plate 73. The slider 78 drives the dial indicator 79 to move along the axis of the mounting plate 73, and the rotation radius of the dial indicator 79 is reduced. As the second rotating shaft 72 rotates, the dial indicator 79 performs a flatness detection on the detection surface in a circular state, and then the flatness of the detection surface can be comprehensively detected. Moreover, since the dial indicator 79 performs a circular detection, the dial indicator 79 is not affected by the mounting hole of the bracket, and the detection is stable. The data analysis software in the data analyzer 2 can collect and analyze the data of the dial indicator 79 and calculate the measurement results, which can greatly improve the measurement efficiency. At the same time, since the measuring mechanism 7 is divided into two groups, the two groups of measurement surfaces on the surface of the bracket can be measured simultaneously, further improving the measurement efficiency.

[0043] Working principle: Place the bracket on the base 1 and insert the clamping mechanism 6 into the bracket mounting hole. Figure 1 As shown, at this time, by controlling the first motor to rotate, the first motor drives the first rotating shaft 62 to rotate, the first rotating shaft 62 drives the first transmission wheel 63 to rotate, the first transmission wheel 63 drives the first bevel gear 64 to rotate, the first bevel gear 64 drives the first screw 65 to rotate, the first screw 65 drives the sliding rod 66 to slide, the sliding rod 66 drives the clamping plate 67 to contact the inner wall of the bracket mounting hole, the clamping mechanism 6 fixes the bracket, when the two groups of mounting holes on the bracket are not parallel, there will be a large gap between the clamping plate 67 and the inner wall of the mounting hole, and the bracket cannot be fixed horizontally, and the parallelism of the mounting holes can be judged while clamping, with strong functionality.

[0044] Then the electric telescopic rod 71 is controlled to descend, the electric telescopic rod 71 drives the second rotating shaft 72 to descend, the second rotating shaft 72 drives the mounting plate 73 to descend, the mounting plate 73 drives the dial indicator 79 to descend, and the measuring head on the dial indicator 79 contacts the detection plane. At this time, the second motor is controlled to be energized and rotated, the second motor drives the second rotating shaft 72 to rotate, the second rotating shaft 72 drives the mounting plate 73 to rotate, the mounting plate 73 drives the dial indicator 79 to rotate along the detection surface, and at the same time the mounting plate 73 drives the gear 74 to rotate. When the gear 74 rotates to the outer gear tooth part of the electric telescopic rod 71, the gear 74 meshes with the gear teeth, the gear 74 rotates on itself, the gear 74 drives the second transmission wheel 75 to rotate, the second transmission wheel 75 drives the second bevel gear 76 to rotate, and the second bevel gear 76 drives the second screw rod 7 7 rotates, the second screw rod 77 drives the slider 78 to slide, the slider 78 slides along the axis of the mounting plate 73, the slider 78 drives the dial indicator 79 to move along the axis of the mounting plate 73, the rotation radius of the dial indicator 79 is reduced, and as the second rotating shaft 72 rotates, the dial indicator 79 performs flatness detection on the detection surface in a circular state, thereby being able to perform a comprehensive flatness detection on the detection surface, and since the dial indicator 79 performs circumferential detection, the dial indicator 79 is not affected by the bracket mounting hole, and the detection is stable, the data analysis software in the data analyzer 2 can collect and analyze the data of the dial indicator 79, and calculate each measurement result, which can greatly improve the measurement efficiency, and at the same time, since the measuring mechanism 7 is divided into two groups, the two groups of measurement surfaces on the bracket surface can be measured simultaneously, further improving the measurement efficiency.

[0045] When the model of the bracket changes, the motor controls the rotation of the lead screw 3, which drives the two groups of slides 5 to slide synchronously in opposite directions. The distance between the two groups of slides 5 changes, and the distance between the two groups of measuring mechanisms 7 and the two groups of clamping mechanisms 6 changes, so that brackets of different models with different fixations can be measured, and the second screw 77 can change the measuring radius of the dial indicator 79, so that detection surfaces of different sizes can be measured.

[0046] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fast flatness measuring fixture for a caliper brake bracket, comprising a base (1), characterized in that: A data analyzer (2) is installed on the right side of the base (1), a lead screw (3) is inserted into the interior of the base (1), a guide column (4) is fixedly connected to the interior of the base (1), a slide (5) is slidably connected to the top of the base (1), a clamping mechanism (6) is installed at the inner bottom of the slide (5), a measuring mechanism (7) is installed at the top of the slide (5), the clamping mechanism (6) comprises a fixed rod (61), the fixed rod (61) is vertically fixedly connected to the inner bottom of the slide (5), a first rotating shaft (62) is inserted into the interior of the fixed rod (61), a first transmission wheel (63) is fixedly connected to the outer side of the first rotating shaft (62), a first bevel gear (64) is meshed with the outer side of the first transmission wheel (63), a first screw rod (65) is fixedly connected to the outer side of the first bevel gear (64), and the first screw rod (65) is fixedly connected to the outer side of the first bevel gear (64). ) is threadedly connected to a slide rod (66) on the outside, and a clamping plate (67) is fixedly connected to the outside of the slide rod (66); the measuring mechanism (7) comprises an electric telescopic rod (71), the electric telescopic rod (71) is installed on the top of the slide frame (5), a second rotating shaft (72) is inserted into the inside of the electric telescopic rod (71), the bottom of the second rotating shaft (72) is fixedly connected to a mounting plate (73), a gear (74) is installed on the top of the mounting plate (73), a second transmission wheel (75) is fixedly connected to the bottom of the gear (74), the outer side of the second transmission wheel (75) is meshed with a second bevel gear (76), the outer side of the second bevel gear (76) is fixedly connected to a second screw rod (77), the outer side of the second screw rod (77) is threadedly connected to a slider (78), and the bottom of the slider (78) is fixedly connected to a dial indicator (79); The bracket is placed on the base (1), and the clamping mechanism (6) is inserted into the bracket mounting hole. At this time, the first motor is controlled to rotate, the first motor drives the first rotating shaft (62) to rotate, the first rotating shaft (62) drives the first transmission wheel (63) to rotate, the first transmission wheel (63) drives the first bevel gear (64) to rotate, the first bevel gear (64) drives the first screw rod (65) to rotate, the first screw rod (65) drives the slide rod (66) to slide, the slide rod (66) drives the clamping plate (67) to contact the inner wall of the bracket mounting hole, and the clamping mechanism (6) fixes the bracket. When the two groups of mounting holes on the bracket are not parallel, there will be a large gap between the clamping plate (67) and the inner wall of the mounting hole, and the bracket cannot be fixed horizontally. The parallelism of the mounting holes can be judged while clamping.

2. A fast flatness measuring fixture for a caliper brake bracket according to claim 1, characterized in that: The data analyzer (2) is connected to the dial indicator (79).

3. A fast flatness measuring fixture for a caliper brake bracket according to claim 1, characterized in that: The lead screw (3) and the guide column (4) both pass through the slide (5), and the lead screw (3) and the slide (5) are threadedly connected.

4. A fast flatness measuring fixture for a caliper brake bracket according to claim 1, characterized in that: The spiral direction of the left half of the lead screw (3) is opposite to the spiral direction of the right half of the lead screw (3).

5. A fast flatness measuring fixture for a caliper brake bracket according to claim 1, characterized in that: The slide (5), the clamping mechanism (6) and the measuring mechanism (7) are divided into two groups.

6. A fast flatness measuring fixture for a caliper brake bracket according to claim 1, characterized in that: The first rotating shaft (62) is installed inside the fixed rod (61) via a first motor, and the second rotating shaft (72) is installed inside the electric telescopic rod (71) via a second motor.

7. A fast flatness measuring fixture for a caliper brake bracket according to claim 1, characterized in that: The sliding rod (66) is slidably connected to the interior of the fixing rod (61), and the sliding block (78) is slidably connected to the bottom of the mounting plate (73).

8. A fast flatness measuring fixture for a caliper brake bracket according to claim 1, characterized in that: The clamping plates (67) are divided into six groups and are evenly distributed on the outside of the fixing rod (61). The clamping plates (67) are designed to be arc-shaped.

9. A fast flatness measuring fixture for a caliper brake bracket according to claim 1, characterized in that: Part of the outer side of the electric telescopic rod (71) is provided with gear teeth, and the gear teeth can mesh with the gear (74).

10. A fast flatness measuring fixture for a caliper brake bracket according to claim 1, characterized in that: The second screw rod (77) is distributed along the axis of the mounting plate (73), and the mounting plate (73) and the fixing rod (61) are coaxial.

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