Flanged shaft inner hole chamfer comprehensive dimension rapid detection tool

Abstract

The utility model discloses a flange shaft inner hole chamfer comprehensive dimension rapid testing fixture which comprises a supporting mechanism, a sliding mechanism and a detection mechanism. The supporting mechanism comprises a bottom plate, and a main body and an elastic piece are connected to the bottom plate; the sliding mechanism comprises a support which is in sliding fit with the body, and the bottom end of the support is connected to the elastic piece. The detection mechanism comprises a positioning block, the positioning block is connected to the support, and a go-no go gauge is rotatably connected above the positioning block. Compared with the prior art, the tool is simple in structure and convenient to use, and can quickly and comprehensively judge the radial size and the coaxiality position tolerance of the chamfer of the inner hole of the flange shaft after the inner hole of the flange shaft is radially and axially positioned and a public detection reference system is established.

Description

Technical Field

[0001] This utility model relates to the field of inspection tool technology, and in particular to a rapid inspection tool for the comprehensive dimensions of the chamfer of the inner hole of a flange shaft. Background Technology

[0002] flange shaft Figure 1 As shown, the flange shaft inner bore is used for interference fitting of the mating parts inside the passenger vehicle engine. The chamfer of the inner bore plays a guiding and positioning role during the pressing process. The radial dimension of the inner bore, the radial dimension of the inner bore chamfer, and the coaxiality position tolerance of the inner bore and chamfer are all important characteristic dimensions, which must be carefully inspected and controlled during the production process.

[0003] like Figure 2 The radial dimension XX1 of the inner bore chamfer is the intersection point formed by the inner bore angle and the flange end face. Vernier calipers cannot accurately locate this intersection point, leading to measurement errors. Furthermore, the vernier caliper measurement method cannot determine the coaxiality tolerance between the inner bore and the chamfer. Therefore, the radial dimension XX2 of the inner bore must be measured using vernier calipers, and the projected distance XX3 of the chamfer must be measured using a profilometer to indirectly calculate the radial dimension XX1 of the inner bore chamfer.

[0004] Example: XX1 = XX2 + XX3 + XX3 (The actual result will also be affected by the angular dimension of XX4)

[0005] This inspection method cannot determine the coaxiality position tolerance between the inner hole and the chamfer; the inspection also requires multiple dimensional chain conversions, resulting in high errors and slow inspection efficiency; the inspection consumes the capacity of the profilometer; it requires a high skill matrix from the inspection personnel; and it cannot be quickly used to guide on-site processing adjustments; clearly, it cannot meet the current production needs. Utility Model Content

[0006] The purpose of this utility model is to provide a rapid inspection tool for the comprehensive dimensions of the chamfer of the flange shaft inner hole. It has a simple structure and is easy to use. It can quickly locate the radial and axial dimensions of the flange shaft inner hole. After establishing a common inspection benchmark system, it can quickly make a comprehensive judgment on the radial dimensions and coaxiality position tolerance of the flange shaft inner hole chamfer, so as to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A rapid inspection tool for the comprehensive dimensions of the chamfered inner hole of a flange shaft includes a support mechanism, a sliding mechanism, and an inspection mechanism. The support mechanism includes a base plate, on which a main body and an elastic element are connected. The sliding mechanism includes a bracket, which is slidably fitted to the main body, and the bottom end of the bracket is connected to the elastic element. The inspection mechanism includes a positioning block, which is connected to the bracket, and a go / no-go gauge is rotatably connected above the positioning block.

[0009] The further improved scheme of the utility model discloses, the main part is "G" shape, the upper and lower ends of the main part are equipped with the bayonet and the notch respectively, the side of the main part is connected with the linear slide rail assembly, the support is connected on the sliding block of the linear slide rail assembly.

[0010] The further improved scheme of the utility model discloses, the top of the support is located above the main part, the top of the support is equipped with the through hole, the upper and lower ends of the through hole are connected with the lock nut.

[0011] The further improved scheme of the utility model discloses, the upper part of the positioning block is the cylinder, the bottom center of the cylinder is equipped with the ball head, the top center of the cylinder is connected with the screw rod, and the screw rod is screwed with the lock nut.

[0012] The further improved scheme of the utility model discloses, the joint of the screw rod and the cylinder is the light pole, the inner ring of the bearing is interference fitted on the outer wall of the light pole, and the go-no go gauge is interference fitted on the outer ring of the bearing.

[0013] The further improved scheme of the utility model discloses, the side of the support is screwed with the lock block, and one end of the lock block can be attached to the main part.

[0014] The further improved scheme of the utility model discloses, the elastic member is the compression spring, and the upper and lower ends of the compression spring are connected to the support and the bottom plate respectively.

[0015] The further improved scheme of the utility model discloses, the side of the support is connected with the handle.

[0016] The further improved scheme of the utility model discloses, the top of the linear slide rail assembly is connected with the limiting block.

[0017] The utility model discloses the beneficial effect:

[0018] The flange shaft inner hole chamfer comprehensive size quick gauge has simple structure, convenient to use, and can position the radial direction and axial direction of the flange shaft inner hole quickly, and after establishing a common detection reference system, the radial size and coaxial position tolerance of the flange shaft inner hole chamfer can be judged comprehensively.

[0019] The flange shaft inner hole chamfer comprehensive size quick gauge has simple structure, convenient to use, and can position the radial direction and axial direction of the flange shaft inner hole quickly, and after establishing a common detection reference system, the radial size and coaxial position tolerance of the flange shaft inner hole chamfer can be judged comprehensively.

[0020] The flange shaft inner hole chamfer comprehensive size quick gauge has simple structure, convenient to use, and can position the radial direction and axial direction of the flange shaft inner hole quickly, and after establishing a common detection reference system, the radial size and coaxial position tolerance of the flange shaft inner hole chamfer can be judged comprehensively. ACCURACY

[0021] Figure 1 It is the structural schematic diagram of flange shaft.

[0022] Figure 2 It is Figure 1 the sectional view.

[0023] Figure 3 This is a schematic diagram of the overall structure of the present invention in its working state.

[0024] Figure 4 This is a schematic diagram of the overall structure of the present invention in its working state.

[0025] Figure 5 This is a schematic diagram of the overall structure of the present invention in its non-working state.

[0026] Figure 6 This is a schematic diagram of the support mechanism of this utility model.

[0027] Figure 7 This is a schematic diagram of the structure of the testing mechanism of this utility model.

[0028] Figure 8 This is a schematic diagram of the testing mechanism of this utility model in operation.

[0029] In the diagram: 1-Bracket, 2-Go / No-Go Gauge, 3-Positioning Block, 4-Flange Shaft, 401-Center Hole, 402-Inner Hole, 5-Main Body, 6-Handle, 7-Locking Block, 8-Compression Spring, 9-Base Plate, 10-Limit Block, 11-Linear Slide Rail Assembly. Detailed Implementation

[0030] The present invention will be further explained below with reference to the accompanying drawings and specific embodiments.

[0031] Example 1: As Figures 1-8 As shown, a rapid inspection tool for the comprehensive dimensions of the chamfered inner hole of a flange shaft includes a support mechanism, a sliding mechanism, and an inspection mechanism. The support mechanism includes a base plate 9, on which a main body 5 and an elastic element are connected. The sliding mechanism includes a bracket 1, which is slidably fitted to the main body 5, and the bottom end of the bracket 1 is connected to the elastic element. The inspection mechanism includes a positioning block 3, which is connected to the bracket 1, and a go / no-go gauge 2 is rotatably connected above the positioning block 3.

[0032] The main body 5 is in the shape of an "I" and has a notch and a notch at its upper and lower ends, respectively. A linear slide rail assembly 11 is connected to the side of the main body 5, and the bracket 1 is connected to the slider of the linear slide rail assembly 11.

[0033] The top of the bracket 1 is located above the main body 5. The top of the bracket 1 is provided with a through hole, and the upper and lower ends of the through hole are connected with locking nuts.

[0034] The upper part of the positioning block 3 is a cylinder, with a ball head at the center of the bottom of the cylinder and a screw connected to the center of the top of the cylinder. The screw is threaded and fitted with a locking nut.

[0035] The inner ring of the bearing is interference fitted to the outer wall of the light rod, and the go-no-go gauge 2 is interference fitted to the outer ring of the bearing.

[0036] The lock block 7 is threadedly connected to one side of the support 1.

[0037] The elastic member is a compression spring 8, and the upper and lower ends of the compression spring 8 are connected to the support 1 and the bottom plate 9 respectively.

[0038] The handle 6 is connected to the side of the support 1.

[0039] The top end of the linear slide rail assembly 11 is connected to the limiting block 10.

[0040] The design principle of the utility model is as follows:

[0041] The sliding mechanism-support 1 is fixed to the linear slide rail assembly 11 and connected to the positioning block 3, the handle 6 and the lock block 7.

[0042] The detection mechanism-go-no-go gauge 2 is press-fitted to the positioning block 3 and performs circumferential rotation along the axis of the positioning block 3 during detection to make Go-NoGo type judgment on the measured element.

[0043] The detection mechanism-positioning block 3 is connected to the support 1 and connected to the go-no-go gauge 2.

[0044] The workpiece is manually placed on the main body 5 by the operator and radial and axial rapid positioning is established by the press-in of the positioning block 3.

[0045] The support mechanism-main body 5 is fixed to the bottom plate 9 and connected to the limiting block 10 and the linear slide rail assembly 11.

[0046] The sliding mechanism-handle 6 is fixed to the support 1 and performs reciprocating linear motion in a given direction along with the sliding mechanism.

[0047] The sliding mechanism-lock block 7 is threadedly connected to the support 1.

[0048] The support mechanism-compression spring 8 is stored in the bottom plate 9 and uses its elastic force to reset the sliding mechanism.

[0049] Support mechanism - base plate 9: fixed "main body 5", the internal fixed rod limit "compression spring 8", the support and stabilization effect to the gauge.

[0050] Support mechanism - limit block 10: fixed in "main body 5", the operation of the sliding mechanism is limited.

[0051] Support mechanism - linear slide rail assembly 11: fixed in "main body 5", connected with "bracket 1", the operation of the sliding mechanism is fixed and guided.

[0052] The working principle of the utility model is as follows:

[0053] One: the operator puts the flange shaft 4 into the bayonet of the main body 5 and carries out pre-positioning.

[0054] Two: the operator holds the handle 6 and presses it in the given direction, and the detection mechanism attached to the sliding mechanism moves synchronously. The front end ball head of the positioning block 3, the center hole 401 and the inner hole 402 of the flange shaft 4 are positioned, and the flange shaft 4 is positioned in the radial and axial directions.

[0055] Three: the operator tightens the locking block 7 clockwise, fixes the flange shaft 4, the sliding mechanism and the detection mechanism, establishes the radial and axial detection reference system, and can determine the chamfer comprehensive size.

[0056] Four: the operator rotates the go-no-go gauge 2 circumferentially, rotates the go-no-go gauge 2 along the radial reference of the gauge, and determines the Go-NoGo type of the measured element. The operator looks down at the go-no-go gauge 2, and if the chamfer of the flange shaft 4 exceeds the upper and lower limit range of the go-no-go gauge 2, it is determined that the radial size and the coaxial size of the flange shaft 4 chamfer are out of tolerance.

[0057] Five: after the detection is completed, the operator loosens the locking block 7 counterclockwise, and the sliding mechanism and the detection mechanism are automatically reset under the elastic force of the compression spring 8.

[0058] Six: the operator takes out the flange shaft 4. Thus, the detection operation is completed.

[0059] The above embodiment is only for illustrating the technical concept and characteristics of the utility model, and its purpose is to enable those skilled in the art to understand the content of the utility model and implement it, and it cannot limit the protection scope of the utility model. Any equivalent transformation or modification according to the spirit and essence of the utility model shall be covered within the protection scope of the utility model.

Claims

1. A flange shaft hole chamfer comprehensive size rapid detection tool, characterized in that: It includes a support mechanism, a sliding mechanism and a detection mechanism; the support mechanism includes a bottom plate (9), and a main body (5) and an elastic member are connected to the bottom plate (9); the sliding mechanism includes a bracket (1), the bracket (1) is slidably fitted to the main body (5), and the bottom end of the bracket (1) is connected to the elastic member; the detection mechanism includes a positioning block (3), the positioning block (3) is connected to the bracket (1), and a go-no-go gauge (2) is rotatably connected above the positioning block (3).

2. The flange shaft hole chamfer comprehensive size rapid detection tool according to claim 1, characterized in that: The main body (5) is in an "I" shape, and a bayonet and a notch are respectively provided at the upper and lower ends of the main body (5); a linear slide rail assembly (11) is connected to the side of the main body (5), and the bracket (1) is connected to the slider of the linear slide rail assembly (11).

3. The flange shaft hole chamfer comprehensive size rapid detection tool of claim 1, wherein: The top end of the bracket (1) is located above the main body (5), and a through hole is provided at the top end of the bracket (1), and locking nuts are connected to the upper and lower ends of the through hole.

4. The flange shaft hole chamfer comprehensive size rapid detection tool of claim 3, wherein: The upper part of the positioning block (3) is a cylinder, a ball head is provided at the center of the bottom of the cylinder, and a screw rod is connected to the center of the top end of the cylinder, and the screw rod is threadedly fitted to the locking nut.

5. The flange shaft hole chamfer comprehensive size rapid detection tool of claim 4, wherein: The joint of the screw rod and the cylinder is a smooth rod, the inner ring of the bearing is interference-fitted to the outer wall of the smooth rod, and the go-no-go gauge (2) is interference-fitted to the outer ring of the bearing.

6. The flange shaft hole chamfer comprehensive size rapid detection tool of claim 1, wherein: A locking block (7) is threadedly fitted to one side of the bracket (1), and one end of the locking block (7) can be fitted to the main body (5).

7. The flange shaft hole chamfer comprehensive size rapid detection tool of claim 1, wherein: The elastic member is a compression spring (8), and the upper and lower ends of the compression spring (8) are respectively connected to the bracket (1) and the bottom plate (9).

8. The flange shaft hole chamfer comprehensive size rapid detection tool according to claim 1, characterized in that: A handle (6) is connected to the side of the bracket (1).

9. The flange shaft hole chamfer comprehensive size rapid detection tool of claim 2, wherein: A limit block (10) is connected to the top end of the linear slide rail assembly (11).

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