Auxiliary detection tool for adjustable roller support

Abstract

The utility model relates to an auxiliary detection gauge for an adjustable roller support, which is characterized in that a support cylinder is arranged in a support base, and a nut is arranged above the support cylinder; a screw is mounted in the supporting cylinder, a V-shaped block is mounted at the upper end of the screw, roller shaft mounting holes are formed in the inner plate outside the left side of a left arm of the V-shaped block, roller shafts are mounted in the roller shaft mounting holes, rollers are rotatably mounted on the roller shafts, and roller shaft mounting holes are formed in the inner plate outside the right side of a right arm of the V-shaped block. Roller shafts are mounted in the roller shaft mounting holes, rollers are rotationally mounted on the roller shafts, and all the rollers are arranged in a V shape; and the V-shaped block left arm and the V-shaped block right arm are respectively provided with a roller brake assembly. All the rollers are arranged in the V shape, the V-shaped supporting principle is utilized, a supporting structure with the adjustable center height is designed, the applicable product size range is wider, CMM detection is not needed, the detection efficiency is improved, and the product quality is stable.

Description

Technical Field

[0001] The utility model relates to a checking tool for measuring form and position tolerances, and particularly discloses an auxiliary checking tool for an adjustable roller bracket. Background Art

[0002] Spatial runout requirements are a typical fundamental characteristic in product design and are crucial for the precise realization of part assembly functions. Traditional three-dimensional coordinate inspection methods are not only slow and costly, but also fail to achieve 100% inspection in large-scale production, resulting in product instability. Summary of the Invention

[0003] The purpose of the utility model is to overcome the deficiencies in the prior art and provide an adjustable roller bracket auxiliary detection fixture which can improve inspection efficiency and reduce inspection costs.

[0004] According to the technical solution provided by the utility model, the adjustable roller bracket auxiliary detection fixture includes a bracket base, a support tube, a nut, a V-block, a screw, a roller shaft, a roller and a locking screw;

[0005] A support tube is installed in the bracket base, and an outer step is provided at the upper end of the support tube. A nut is installed above the support tube, and an inner step is provided at the lower end of the nut. The inner step at the lower end of the nut is sleeved on the outer side of the outer step at the upper end of the support tube. A plurality of locking screw holes are opened on the nut at the position corresponding to the inner step, and the locking screws are installed in the locking screw holes.

[0006] A screw is installed in the support cylinder, and the screw and the nut are connected by internal and external threads, and a V-shaped block is installed at the upper end of the screw, and the V-shaped block includes a left arm of the V-shaped block and a right arm of the V-shaped block, the left arm of the V-shaped block includes a left outer plate and a left inner plate, and the right arm of the V-shaped block includes a right outer plate and a right inner plate; two roller shaft mounting holes that cooperate with each other are provided on the left outer plate and the left inner plate of the left arm of the V-shaped block, a roller shaft is installed in the roller shaft mounting hole, and a roller is rotatably installed on the roller shaft, and two roller shaft mounting holes that cooperate with each other are provided on the right outer plate and the right inner plate of the right arm of the V-shaped block, a roller shaft is fixedly installed in the roller shaft mounting hole, and a roller is rotatably installed on the roller shaft, and all rollers are arranged in a V shape;

[0007] Roller brake assemblies are installed on both the left arm and the right arm of the V-block.

[0008] Preferably, the roller brake assembly includes a brake block and a brake bolt;

[0009] The left outer plate and the left inner plate of the left arm of the V-shaped block corresponding to the two left rollers are both provided with brake shoe mounting openings that cooperate with each other, a brake shoe is slidably mounted in the brake shoe mounting opening, a brake bolt mounting hole is provided in each of the inner and outer brake shoes, a brake bolt is mounted in the brake bolt mounting hole, and the brake shoe and the brake bolt are connected by internal and external threads; by rotating the brake bolt, the inner and outer brake shoes are synchronously moved closer to or away from the two left rollers;

[0010] The right side outer plate and the right side inner plate of the right arm of the V-shaped block corresponding to the two right side rollers are provided with brake shoe mounting openings that cooperate with each other, and a brake shoe is slidably installed in the brake shoe mounting opening, and a brake bolt mounting hole is provided in each of the inner and outer brake shoes, and a brake bolt is installed in the brake bolt mounting hole, and the brake shoe and the brake bolt are connected by internal and external threads; when the brake bolt is rotated, the inner and outer brake shoes synchronously approach or move away from the two right side rollers.

[0011] Preferably, a spacer pin is installed on the left arm of the V-block, the outer end of the spacer pin is fixed to the left outer plate of the left arm of the V-block, and the inner end of the spacer pin is fixed to the left inner plate of the left arm of the V-block;

[0012] A spacer pin is installed on the right arm of the V-block, the outer end of the spacer pin is fixed to the right outer plate of the right arm of the V-block, and the right end of the spacer pin is fixed to the right inner plate of the right arm of the V-block.

[0013] Preferably, an inner step is provided at the upper end of the bracket base, and an outer step is provided at the lower end of the support tube, and the outer step at the lower end of the support tube is inserted into the inner step at the upper end of the bracket base.

[0014] All rollers in the present invention are arranged in a V shape. The present invention utilizes the V-shaped support principle and designs a support structure with adjustable center height. It can be used to detect the runout of shaft parts with a reference diameter of more than 25 mm. It is applicable to a wider range of product sizes and does not require CMM detection, thereby improving inspection efficiency and stabilizing product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is the main view of the present utility model.

[0016] Figure 2 It is a top view of the present utility model.

[0017] Figure 3 yes Figure 2 AA cross-sectional view.

[0018] Figure 4 This is a usage state diagram of the utility model. DETAILED DESCRIPTION

[0019] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described are 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 those skilled in the art without creative work are within the scope of protection of the present invention.

[0020] An adjustable roller bracket auxiliary detection fixture, such as Figure 1-3 As shown, it includes a bracket base 1, a support tube 2, a nut 3, a V-shaped block 4, a screw 5, a roller shaft 6, a roller 7 and a locking screw 8;

[0021] A support tube 2 is installed in the bracket base 1. The upper end of the support tube 2 is provided with an outer step. A nut 3 is installed above the support tube 2. The lower end of the nut 3 is provided with an inner step. The inner step of the lower end of the nut 3 is sleeved on the outer side of the outer step of the upper end of the support tube 2. A plurality of locking screw holes are opened on the nut 3 at the position corresponding to the inner step, and the locking screws 8 are installed in the locking screw holes.

[0022] A screw 5 is installed in the support cylinder 2, and the screw 5 is connected to the nut 3 by internal and external threads. A V-shaped block 4 is installed at the upper end of the screw 5, and the V-shaped block 4 includes a left arm of the V-shaped block and a right arm of the V-shaped block. The left arm of the V-shaped block includes a left outer plate and a left inner plate, and the right arm of the V-shaped block includes a right outer plate and a right inner plate; two roller shaft mounting holes that cooperate with each other are provided on the left outer plate and the left inner plate of the left arm of the V-shaped block, and the roller shaft mounting holes are step holes, and a stepped roller shaft 6 is installed in the roller shaft mounting holes, and a roller 7 is rotatably installed on the roller shaft 6. Two roller shaft mounting holes that cooperate with each other are provided on the right outer plate and the right inner plate of the right arm of the V-shaped block. The roller shaft mounting holes are step holes, and a stepped roller shaft 6 is fixedly installed in the roller shaft mounting holes, and a roller 7 is rotatably installed on the roller shaft 6, and all rollers 7 are arranged in a V shape;

[0023] Roller brake assemblies are installed on both the left arm and the right arm of the V-block.

[0024] The roller brake assembly includes a brake block 9 and a brake bolt 10;

[0025] On the left outer plate and the left inner plate of the left arm of the V-shaped block corresponding to the two left rollers 7, there are provided mutually matching elliptical brake shoe mounting openings, an elliptical brake shoe 9 is slidably installed in the brake shoe mounting opening, a brake bolt mounting hole is provided in each of the inner and outer brake shoes 9, a brake bolt 10 is installed in the brake bolt mounting hole, and the brake shoe 9 and the brake bolt 10 are connected by internal and external threads; by rotating the brake bolt 10, the inner and outer brake shoes 9 are synchronously moved closer to or away from the two left rollers 7;

[0026] On the right outer plate and the right inner plate of the right arm of the V-shaped block corresponding to the two right rollers 7, there are provided mutually matching elliptical brake shoe mounting openings, and an elliptical brake shoe 9 is slidably installed in the brake shoe mounting opening. A brake bolt mounting hole is provided in each of the inner and outer brake shoes 9, and a brake bolt 10 is installed in the brake bolt mounting hole. The brake shoe 9 and the brake bolt 10 are connected by internal and external threads; when the brake bolt 10 is rotated, the inner and outer brake shoes 9 are synchronously approached or synchronously moved away from the two right rollers 7.

[0027] A spacer pin 11 is installed on the left arm of the V-block. The outer end of the spacer pin 11 is fixed to the left outer plate of the left arm of the V-block, and the inner end of the spacer pin 11 is fixed to the left inner plate of the left arm of the V-block. The spacer pin 11 can prevent the left outer plate and the left inner plate of the left arm of the V-block from deforming under stress or after long-term use.

[0028] A spacer pin 11 is installed on the right arm of the V-block. The outer end of the spacer pin 11 is fixed to the right outer plate of the right arm of the V-block, and the right end of the spacer pin 11 is fixed to the right inner plate of the right arm of the V-block. The spacer pin 11 can prevent the right outer plate and the right inner plate of the right arm of the V-block from deforming after being subjected to force or long-term use.

[0029] An inner step is provided at the upper end of the bracket base 1 , and an outer step is provided at the lower end of the support tube 2 . The outer step at the lower end of the support tube 2 is inserted into the inner step at the upper end of the bracket base 1 .

[0030] The working principle of this utility model is as follows:

[0031] 1. When detecting the runout of shaft parts, two adjustable roller brackets of the present invention are generally used in conjunction with auxiliary detection fixtures to detect shaft products with a positioning reference of more than φ25mm.

[0032] 2. Place the two ends of the shaft part to be tested on the rollers 7 of the two adjustable roller bracket auxiliary detection fixtures of the present invention, as shown in the figure. Figure 4As shown, after loosening the locking screw 8, rotate the nut 3 and adjust the V-block 4 up and down through the screw 5 to ensure that the reference center heights of the two ends of the shaft parts to be tested are consistent. Finally, tighten the locking screw 8 to cause a slight deformation of the outer step position at the upper end of the support tube 2 to hold the screw 5 tightly. Rotate the left and right brake bolts 10 to make the inner and outer brake blocks 9 approach the rollers 7 synchronously until the brake blocks 9 press the two rollers 7 on the left and the two rollers 7 on the right to prevent the two rollers 7 on the left and the two rollers 7 on the right, thereby fixing the position of the shaft parts to be tested.

[0033] 3. Place the dial indicator or micrometer on the position to be tested, rotate the dial indicator or micrometer probe to detect the surface of the feature to be tested, and read the value. This number is the actual runout value of the shaft part.

[0034] Finally, it should be noted that the above specific implementation methods are only used to illustrate the technical solution of the utility model and are not limiting. Although the utility model is described in detail with reference to examples, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. An adjustable roller bracket auxiliary detection fixture, characterized by: It includes a bracket base (1), a support tube (2), a nut (3), a V-shaped block (4), a screw (5), a roller shaft (6), a roller (7) and a locking screw (8); A support tube (2) is installed in the bracket base (1), an outer step is provided at the upper end of the support tube (2), a nut (3) is installed above the support tube (2), an inner step is provided at the lower end of the nut (3), the inner step at the lower end of the nut (3) is sleeved on the outer side of the outer step at the upper end of the support tube (2), a plurality of locking screw holes are opened on the nut (3) at the positions corresponding to the inner step, and the locking screws (8) are installed in the locking screw holes; A screw rod (5) is installed in the support tube (2), and the screw rod (5) is connected to the nut (3) through internal and external threads. A V-shaped block (4) is installed at the upper end of the screw rod (5), and the V-shaped block (4) includes a V-shaped block left arm and a V-shaped block right arm. The V-shaped block left arm includes a left outer plate and a left inner plate, and the V-shaped block right arm includes a right outer plate and a right inner plate; two roller shaft mounting holes that match each other are provided on the left outer plate and the left inner plate of the V-shaped block left arm, and a roller shaft (6) is installed in the roller shaft mounting hole, and a roller (7) is rotatably installed on the roller shaft (6); two roller shaft mounting holes that match each other are provided on the right outer plate and the right inner plate of the V-shaped block right arm, and a roller shaft (6) is fixedly installed in the roller shaft mounting hole, and a roller (7) is rotatably installed on the roller shaft (6), and all rollers (7) are arranged in a V shape; Roller brake assemblies are installed on both the left arm and the right arm of the V-block.

2. The adjustable roller bracket auxiliary detection fixture according to claim 1, characterized in that: The roller brake assembly includes a brake block (9) and a brake bolt (10); A brake block mounting opening that cooperates with each other is provided on the left outer plate and the left inner plate of the left arm of the V-shaped block between the two left rollers (7), a brake block (9) is slidably installed in the brake block mounting opening, a brake bolt mounting hole is provided in each of the inner and outer brake blocks (9), a brake bolt (10) is installed in the brake bolt mounting hole, and the brake block (9) and the brake bolt (10) are connected by internal and external threads; when the brake bolt (10) is rotated, the inner and outer brake blocks (9) simultaneously approach or simultaneously move away from the two left rollers (7); A brake block mounting opening that cooperates with each other is provided on the right outer plate and the right inner plate of the right arm of the V-shaped block between the two right rollers (7), a brake block (9) is slidably installed in the brake block mounting opening, a brake bolt mounting hole is provided in each of the inner and outer brake blocks (9), a brake bolt (10) is installed in the brake bolt mounting hole, and the brake block (9) and the brake bolt (10) are connected through an inner and outer thread; when the brake bolt (10) is rotated, the inner and outer brake blocks (9) simultaneously approach or simultaneously move away from the two right rollers (7).

3. The adjustable roller bracket auxiliary detection fixture according to claim 1 is characterized in that: A spacer pin (11) is mounted on the left arm of the V-shaped block, the outer end of the spacer pin (11) is fixed to the left outer plate of the left arm of the V-shaped block, and the inner end of the spacer pin (11) is fixed to the left inner plate of the left arm of the V-shaped block; A spacer pin (11) is installed on the right arm of the V-shaped block, the outer end of the spacer pin (11) is fixed to the right outer plate of the right arm of the V-shaped block, and the right end of the spacer pin (11) is fixed to the right inner plate of the right arm of the V-shaped block.

4. The adjustable roller bracket auxiliary detection fixture according to claim 1 is characterized in that: An inner step is provided at the upper end of the support base (1), and an outer step is provided at the lower end of the support tube (2). The outer step at the lower end of the support tube (2) is inserted into the inner step at the upper end of the support base (1).

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