Simple clamp convenient for workpiece detection

Abstract

The simple clamp comprises a base and a supporting mechanism arranged on the base, the supporting mechanism is provided with a workpiece tensioning mechanism, the workpiece tensioning mechanism comprises a tensioning pin and an adjusting mechanism, the tensioning pin is provided with a mounting part and an expansion and contraction part, the mounting part is arranged on the supporting mechanism, the expansion and contraction part is arranged on the supporting mechanism, and the adjusting mechanism is arranged on the supporting mechanism. The adjusting mechanism is arranged in the expansion pin and has axial displacement in the expansion pin, and the expansion part is driven to expand and contract in the circumferential direction through the displacement. According to the utility model, the axial displacement of the adjusting mechanism in the expansion pin drives the expansion and contraction part to expand and contract in the circumferential direction so as to clamp a workpiece, and the clamp has the advantages of simple structure and convenience in operation; meanwhile, the expansion pin and the supporting mechanism are fixed through the anti-rotation screw, rotation of the expansion pin can be avoided, and therefore detection is more convenient.

Description

TECHNICAL FIELD

[0001] The utility model belongs to workpiece detection fixture technical field, especially simple fixture convenient for workpiece detection. BACKGROUND

[0002] Workpiece with annular hole has wide application in mechanical equipment, needs to pass cutting, polishing and other processing before use, needs to carry out surface wear, processing precision and various tests after processing. The tool fixture is an essential part during detection, and the traditional tool fixture adopts a pressing plate, a bolt and other pressing devices, which are complicated to operate, time-consuming and relatively complex in structure, thus some tooling devices for clamping by tensioning are derived, however, the existing tensioning mechanism is dependent on external power, such as hydraulic pressure, pneumatic pressure and the like, and lacks flexibility in adjustment. Therefore, a simple structure, without additional pressing device and fast tensioning solution is urgently needed.

[0003] The information disclosed in this BACKGROUND section is only for the purpose of increasing the understanding of the background of the present utility model and should not be regarded as an acknowledgment or any form of suggestion that it forms prior art that is publicly known. SUMMARY

[0004] The utility model aims at providing a simple fixture convenient for workpiece detection, so as to overcome the defects in the prior art.

[0005] In order to achieve the above object, the utility model provides a simple fixture convenient for workpiece detection, which comprises a base, a supporting mechanism arranged on the base, a workpiece tensioning mechanism arranged on the supporting mechanism, the workpiece tensioning mechanism comprising a tension pin and an adjusting mechanism, the tension pin being provided with a mounting portion and a tensioning portion, the mounting portion being arranged on the supporting mechanism, the adjusting mechanism being arranged in the tension pin, the adjusting mechanism having an axial displacement in the tension pin, and the tensioning portion being driven to expand or contract circumferentially through the displacement.

[0006] Further, as a preferred, the adjusting mechanism comprises an adjusting screw and a steel ball arranged in the tension pin, the adjusting screw driving the steel ball to move in the tension pin to drive the tensioning portion to expand or contract circumferentially.

[0007] Further, as a preferred, the supporting mechanism is provided with an anti-rotation screw, and the anti-rotation screw fixes the supporting mechanism and the tension pin.

[0008] Further, as a preferred, the workpiece tensioning mechanism further comprises a nut and a washer, the nut being used to lock the tension pin and the supporting mechanism, and the washer being used to pad the gap between the adjusting mechanism and the tension pin.

[0009] Further, as a preferred, the adjusting screw and the tensioning portion are respectively located on both sides of the supporting mechanism. Further, as a preferred, the adjusting screw and the tensioning portion are respectively located on both sides of the supporting mechanism.

[0010] Further, as preferred, the base is provided with a plurality of support mechanisms, and each support mechanism is provided with a workpiece expansion mechanism.

[0011] Further, as preferred, the support mechanism is detachably arranged on the base.

[0012] Further, as preferred, the support mechanism is a columnar structure, and the workpiece expansion mechanism is arranged on the top of the support mechanism.

[0013] Further, as preferred, the mounting portion of the expansion pin is provided with a chamfer structure, and the nut is screwed onto the expansion pin from the chamfer structure to lock the expansion pin and the support mechanism.

[0014] Compared with the prior art, one aspect of the utility model has the following beneficial effects:

[0015] The utility model discloses the axial displacement of adjusting mechanism in expansion pin drives the circumferential expansion and contraction of expansion and contraction portion to realize the clamping of workpiece, has simple structure, convenient operation's advantage.

[0016] The utility model discloses the expansion pin and support mechanism are fixed with anti -rotation screw, can avoid the rotation of expansion pin, thereby more convenient detection. DRAWINGS

[0017] Figure 1 It is the structure schematic drawing of a simple fixture convenient for workpiece detection of the utility model;

[0018] Figure 2 It is the structure schematic drawing of another angle of a simple fixture convenient for workpiece detection of the utility model;

[0019] Figure 3 It is the local structure enlarged schematic drawing of a simple fixture convenient for workpiece detection of the utility model;

[0020] Figure 4 It is the enlarged schematic drawing of the workpiece expansion mechanism of a simple fixture convenient for workpiece detection of the utility model;

[0021] Figure 5 It is the exploded schematic drawing of the workpiece expansion mechanism of a simple fixture convenient for workpiece detection of the utility model;

[0022] Figure 6 It is the sectional view of the workpiece expansion mechanism of a simple fixture convenient for workpiece detection of the utility model;

[0023] Figure 7 It is the local enlarged schematic drawing of the sectional view of the workpiece expansion mechanism of a simple fixture convenient for workpiece detection of the utility model;

[0024] Reference numerals: 1-base, 2-support mechanism, 3-workpiece tensioning mechanism, 31-expansion pin, 311-mounting part, 312-expansion and contraction part, 313-chamfered structure, 32-adjustment mechanism, 321-adjusting screw, 3211-arc groove, 322-steel ball, 4-nut, 5-washer, 6-anti-rotation screw. Detailed Implementation

[0025] The specific embodiments of this utility model are described in detail below, but it should be understood that the protection scope of this utility model is not limited to the specific embodiments.

[0026] Unless otherwise expressly stated, throughout the specification and claims, the term "comprising" or its variations such as "including" or "comprises" shall be understood to include the stated elements or components without excluding other elements or other components. Example

[0027] like Figures 1-7 As shown, a simple fixture for easy workpiece inspection includes a base 1 and a support mechanism 2 disposed on the base 1. The support mechanism 2 is provided with a workpiece tensioning mechanism 3. The workpiece tensioning mechanism 3 includes a tensioning pin 31 and an adjusting mechanism 32. The tensioning pin 31 is provided with a mounting part 311 and a contraction part 312. The mounting part 311 is disposed on the support mechanism 2, and the adjusting mechanism 32 is disposed in the tensioning pin 31. The adjusting mechanism 32 has axial displacement in the tensioning pin 31, and the contraction part 312 is driven to contract circumferentially by the displacement.

[0028] In this embodiment, as a specific solution, the adjustment mechanism 32 includes an adjustment screw 321 and a steel ball 322 disposed in the expansion pin 31. The adjustment screw 321 pushes the steel ball 322 to move in the expansion pin 31 to drive the expansion and contraction part 312 to expand and contract circumferentially.

[0029] In this embodiment, as a specific solution, the workpiece tensioning mechanism 3 further includes a nut 4 and a washer 5. The nut 4 is used to lock the tension pin 31 to the support mechanism 2, and the washer 5 is used to pad the gap between the adjusting mechanism 32 and the tension pin 31. More specifically, the washer 5 is padded at the end of the tension pin 31, and the operating part of the adjusting screw 321 is located outside the end of the tension pin 31.

[0030] In this embodiment, as a specific solution, the adjusting screw 321 and the expansion / contraction part 312 are located on both sides of the support mechanism 2; more specifically, the mounting part 311 of the expansion pin 31 passes through the support mechanism 2, the expansion / contraction part 312 is located on one side of the support mechanism 2, and the adjusting screw 321 is screwed into the expansion pin 31 from the other side of the support mechanism 2.

[0031] In the embodiment, as a specific scheme, the end of the adjusting screw 321 is provided with an arc-shaped groove 3211 in contact with the steel ball 322, which can be understood as the arc-shaped groove 3211 for bearing the steel ball 322, so that the adjusting screw 321 and the steel ball 322 have a larger contact area, so as to push the steel ball 322 to move towards the expansion and contraction part 312 to make the expansion and contraction part 312 expand.

[0032] In the embodiment, as a specific scheme, the mounting part 311 of the expansion pin 31 is provided with a chamfer structure 313, and the nut 4 is screwed onto the expansion pin 31 from the chamfer structure 313 to lock the expansion pin 31 and the support mechanism 2.

[0033] In the embodiment, as a specific scheme, the base 1 is provided with a plurality of support mechanisms 2, and each support mechanism 2 is provided with a workpiece expansion mechanism 3 corresponding to the support mechanism 2, so as to simultaneously detect a plurality of workpieces.

[0034] In the embodiment, as a specific scheme, the support mechanism 2 is detachably arranged on the base 1, and a proper number of support mechanisms 2 can be installed according to needs, and the support mechanism 2 with different specifications of workpiece expansion mechanisms 3 can be replaced according to needs.

[0035] In the embodiment, as a specific scheme, the support mechanism 2 is in a columnar structure, and the workpiece expansion mechanism 3 is arranged at the top of the support mechanism 2, so that the detection operation is more convenient.

[0036] In the embodiment, as a specific scheme, the support mechanism 2 is provided with an anti-rotation screw 6 for fixing the support mechanism 2 and the expansion pin 31, and the expansion pin 31 and the support mechanism 2 are locked by the anti-rotation screw 6 and the nut 4, so as to avoid rotation of the workpiece during detection.

[0037] The working principle of the utility model is as follows:

[0038] The workpiece (with an annular hole) to be processed is installed on the expansion and contraction part 312 of the expansion pin 31, the workpiece is tightly attached to the supporting surface of the expansion and contraction part 312, the steel ball 322 is pushed by operating the adjusting screw 321, and the steel ball 322 is extruded towards the expansion and contraction part 312, so as to expand the workpiece to be detected.

[0039] The utility model has the following advantages:

[0040] 1. The utility model drives the circumferential expansion and contraction of the expansion and contraction part by the axial displacement of the adjusting mechanism in the expansion pin, so as to realize clamping of the workpiece, and has the advantages of simple structure and convenient operation.

[0041] 2. The utility model fixes the expansion pin and the support mechanism by the anti-rotation screw, so as to avoid rotation of the expansion pin, thereby facilitating detection.

[0042] The foregoing description of specific exemplary embodiments of the present application is intended to be illustrative only and is not intended to limit the application to the precise forms disclosed. Many modifications and variations are possible in light of the above teachings without departing from the spirit or essential characteristics of the application. The exemplary embodiments were chosen and described in order to explain the principles of the application and its practical application and to allow others skilled in the art to understand the application for various exemplary embodiments with various modifications being applicable. The scope of the application is intended to be limited only by the claims submitted with this application and their equivalents.

Claims

1. A simple fixture for easy workpiece inspection, characterized in that: The base, the support mechanism arranged on the base, the workpiece tensioning mechanism arranged on the support mechanism, the tension pin and the adjusting mechanism, the installation portion of the tension pin arranged on the support mechanism, the adjusting mechanism arranged in the tension pin, the axial displacement of the adjusting mechanism in the tension pin, and the circumferential expansion and contraction of the expansion and contraction portion driven by the displacement.

2. The simple fixture for facilitating inspection of a workpiece according to claim 1, wherein: The adjusting mechanism includes an adjusting screw and a steel ball arranged in the tension pin, the adjusting screw pushes the steel ball to move in the tension pin to drive the circumferential expansion and contraction of the expansion and contraction portion.

3. The simple fixture for facilitating inspection of a workpiece according to claim 1, wherein: The support mechanism is provided with an anti-rotation screw for fixing the support mechanism and the tension pin.

4. The simple fixture for facilitating inspection of a workpiece according to claim 1, wherein: The workpiece tensioning mechanism further includes a nut and a washer, the nut is used to lock the tension pin and the support mechanism, and the washer is used to pad the gap between the adjusting mechanism and the tension pin.

5. The simple fixture for facilitating inspection of a workpiece of claim 2, wherein: The adjusting screw and the expansion and contraction portion are respectively located on both sides of the support mechanism.

6. The simple fixture for facilitating inspection of a workpiece of claim 1, wherein: The base is provided with a plurality of support mechanisms, and each support mechanism is correspondingly provided with a workpiece tensioning mechanism.

7. The simple fixture for facilitating inspection of a workpiece of claim 1, wherein: The support mechanism is detachably arranged on the base.

8. The simple fixture for facilitating inspection of a workpiece of claim 1, wherein: The support mechanism is a columnar structure, and the workpiece tensioning mechanism is arranged on the top of the support mechanism.

9. The simple fixture for facilitating inspection of a workpiece of claim 4, wherein: The installation portion of the tension pin is provided with a chamfer structure, and the nut is screwed onto the tension pin from the chamfer structure to lock the tension pin and the support mechanism.

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