Straightness inspection device

Abstract

The utility model provides a straightness inspection device. The straightness inspection device comprises a base, a fixing block, a clamping device and a detector, the fixing block is detachably arranged on the base and is used for placing an object to be detected, the clamping device is arranged on the base in a sliding manner, the detection direction of the object to be detected is consistent with the sliding direction of the clamping device, the clamping device comprises a plurality of clamping parts, the clamping parts are used for clamping and fixing the detector, and the clamping parts are used for clamping and fixing the detector. And the detector is used for determining the straightness of the object to be detected. According to the utility model, the straightness inspection efficiency can be improved, and the measurement requirements of different objects can be met.

Description

Technical Field

[0001] The utility model relates to the technical field of straightness inspection, in particular to a straightness inspection device. Background Art

[0002] During machining, workpiece straightness is a key factor affecting product quality. Traditional straightness inspection methods rely primarily on manual feeler gauges and empirical judgment, resulting in low measurement accuracy, inefficiency, and large errors. Alternatively, these methods rely on optical instruments and 3D coordinate measuring machines. While these methods offer high accuracy, they also suffer from slow speeds, complex operations, and high costs, making them difficult to meet the efficiency demands of modern large-scale production. Therefore, to improve the accuracy and efficiency of straightness inspections, it is necessary to develop a straightness inspection tool with a simple structure, easy operation, and high measurement accuracy.

[0003] The invention with publication number CN118705978A discloses a fixture for inspecting the straightness of metal rod machining, comprising a base, a groove formed on the top of the base, two movable blocks slidably mounted in the groove, a movable plate fixedly connected to the top of the movable block, a screw threaded through the two movable blocks, and an adjustment assembly. During inspection, the workpiece is first clamped between the two clamping plates, and the movement of the arc-shaped guide plate enables the guide rod to deflect in the horizontal direction and eventually become parallel to the surface of the conical workpiece. The lever micrometer can slide parallel to the surface of the conical workpiece under the restriction of the guide rod, thereby completing the straightness inspection operation on the surface of the conical workpiece. However, the above-mentioned straightness inspection fixture can detect a small number of fixture types for straightness inspection, which cannot meet the inspection requirements of different fixtures. In addition, it can only inspect the straightness of one test surface of the fixture at a time, resulting in low inspection efficiency. Utility Model Content

[0004] The purpose of the present invention is to provide a straightness testing device to solve the defects in the prior art, improve the efficiency of straightness testing, and meet the measurement requirements of different objects.

[0005] To achieve the above-mentioned purpose, the utility model provides a straightness inspection device, comprising a base, a fixing block, a clamping device and a detector;

[0006] The fixed block is detachably mounted on the base and is used to place the object to be detected. The clamping device is slidably mounted on the base. The detection direction of the object to be detected is consistent with the sliding direction of the clamping device. The clamping device includes a plurality of clamping parts, which are used to clamp and fix the detector. The detector is used to determine the straightness of the object to be detected.

[0007] The utility model is provided with multiple clamping parts. When there are multiple test surfaces on the object to be tested, the straightness of multiple test surfaces can be measured at the same time, thereby improving the efficiency and quality of straightness testing and reducing production costs. The fixed block is detachably arranged on the base, and different fixed blocks can be customized for different objects to be tested. The straightness testing device of the utility model can meet all measurement requirements, has a simple structure, is easy to operate, and is easy to use and maintain. The clamping device is slidably arranged on the base, which can reduce the error existing in the handheld detector in detecting the straightness of the test surface, has high measurement accuracy, and can accurately measure the straightness of the workpiece.

[0008] Optionally, the clamping device includes a second clamp, the second clamp includes a fixing portion, and the plurality of clamping portions are all arranged on the fixing portion.

[0009] Optionally, the clamping device further includes a support, a first connecting rod, a first clamp and a second connecting rod;

[0010] The support is slidably arranged on the base, the first connecting rod is arranged on the support, the second connecting rod is clamped and fixed on the first connecting rod by a first clamp, and the second clamp is clamped and fixed on the second connecting rod.

[0011] The second connecting rod is clamped and fixed on the first connecting rod by the first clamp, and the second clamp is clamped and fixed on the second connecting rod. The position and rotation angle of the second clamp can be adjusted at multiple angles to meet the straightness measurement requirements of different objects to be detected.

[0012] Optionally, a slide rail is provided on the base, and a slider is correspondingly provided on the clamping device, and the slider slides on the slide rail.

[0013] The support is set on the slider. The sliding of the slider on the slide rail drives the detector clamped on the second fixture to move, which can reduce the error of the handheld detector in detecting the straightness of the surface to be measured. The measurement accuracy is high and the straightness of the workpiece can be accurately measured.

[0014] Optionally, the detector is a dial indicator, which includes a dial indicator body and a needle, and the needle is rotatably connected to the dial indicator body.

[0015] The needle rotation is set on the dial indicator body. When the position of the dial indicator has been fixed by the second clamp, if the needle has not yet contacted the object to be detected, the needle can be rotated to make it contact with the object to be detected, thereby achieving fine adjustment of the dial indicator, avoiding the need to readjust the position of the second clamp, and reducing the time for measuring straightness.

[0016] Optionally, a clamping rod is further provided on the dial indicator body, and the clamping part clamps the clamping rod.

[0017] Optionally, the fixed block is provided with a limiting groove for limiting the position of the object to be detected.

[0018] Beneficial effects:

[0019] The utility model is provided with multiple clamping parts. When there are multiple test surfaces on the object to be tested, the straightness of multiple test surfaces can be measured at the same time, thereby improving the efficiency and quality of straightness testing and reducing production costs. The fixed block is detachably arranged on the base, and different fixed blocks can be customized for different objects to be tested. The straightness testing device of the utility model can meet all measurement requirements, has a simple structure, is easy to operate, and is easy to use and maintain. The clamping device is slidably arranged on the base, which can reduce the error existing in the handheld detector in detecting the straightness of the test surface, has high measurement accuracy, and can accurately measure the straightness of the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the implementation methods of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the implementation methods or the description of the prior art. Obviously, the drawings described below are only some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0021] Figure 1 This is a structural diagram of the straightness inspection device disclosed in the present utility model;

[0022] Figure 2 This is a structural diagram of another straightness inspection device disclosed in the present utility model;

[0023] Figure 3 This is a structural diagram of the clamping device in the straightness inspection device disclosed in the present utility model;

[0024] Figure 4 This is a structural diagram of the clamping device in the straightness inspection device disclosed in the utility model from another perspective;

[0025] Figure 5 The utility model discloses a structural diagram of a micrometer in a straightness inspection device.

[0026] Figure numerals: 1 base; 11 slide rail; 2 fixed block; 21 limit groove; 3 clamping device; 31 slider; 32 support; 33 first connecting rod; 34 first clamp; 35 second connecting rod; 36 second clamp; 361 fixing part; 362 clamping part; 4 detector; 41 dial gauge body; 42 needle; 43 dial; 44 clamping rod; 5 object to be detected.

[0027] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0029] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0030] In the description of the present invention, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "example," "specific example," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the exemplary expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0031] See also Figure 1-5 , a straightness inspection device according to an embodiment of the utility model includes a base 1, a fixing block 2, a clamping device 3 and a detector 4;

[0032] The fixed block 2 is detachably set on the base 1, and is used to place the object to be detected 5. The clamping device 3 is slidably set on the base 1. The detection direction of the object to be detected 5 is consistent with the sliding direction of the clamping device 3. The clamping device 3 includes multiple clamping parts 362, and the clamping parts 362 are used to clamp and fix the detector 4. The detector 4 is used to determine the straightness of the object to be detected 5.

[0033] In this embodiment, the clamping device 3 includes two clamping parts 362 , each clamping part clamps a detector 4 , and the base 1 is also detachably provided with two fixing blocks 2 , on which the object 5 to be detected is placed.

[0034] If the object to be detected 5 is a scraper, see Figure 1, both test surfaces of the scraper have straightness requirements, place the scraper on two fixed blocks 2, place two detectors 4 on the clamping parts 362 respectively, and adjust the detection ends of the two detectors 4 so that the detection ends lightly touch the test surface of the scraper, adjust the detector 4 to zero point, slide the clamping device 3 on the base 1, move the detection end along the test surface, record the reading changes of the detector 4, perform statistical analysis on the measured readings, and calculate the straightness error of the scraper surface to be tested.

[0035] If the object to be detected 5 is a cylindrical workpiece, see Figure 2 , only the side of the cylindrical workpiece has straightness requirements. Place the cylindrical workpiece on two fixed blocks 2, lightly touch the detection end of one of the detectors 4 to the surface to be measured of the cylindrical workpiece, adjust the detector 4 to the zero point, slide the clamping device 3 on the base 1, move the detection end along the surface to be measured, record the changes in the readings of the detector 4, perform statistical analysis on the measured readings, and calculate the straightness error of the scraper surface to be measured.

[0036] The utility model is provided with multiple clamping parts 362. When there are multiple test surfaces of the object 5 to be tested, the straightness of multiple test surfaces can be measured at the same time, thereby improving the efficiency of straightness inspection and reducing production costs; the fixed block 2 is detachably arranged on the base 1, and different fixed blocks 2 can be customized for different objects 5 to be tested. The straightness inspection device of the utility model can meet the measurement requirements, has a simple structure, is easy to operate, and is easy to use and maintain; and the clamping device 3 is slidably arranged on the base 1, which can reduce the error existing in the handheld detector 4 in detecting the straightness of the test surface, has high measurement accuracy, and can accurately measure the straightness of the workpiece.

[0037] See also Figure 1-4 In some embodiments of the present invention, the clamping device 3 includes a second clamp 36 , the second clamp 36 includes a fixing portion 361 , and a plurality of clamping portions 362 are all provided on the fixing portion 361 .

[0038] See also Figure 3 and 4 , in some embodiments of the present utility model, the clamping device 3 further includes a support 32, a first connecting rod 33, a first clamp 34 and a second connecting rod 35;

[0039] The support 32 is slidably arranged on the base 1 , the first connecting rod 33 is arranged on the support 32 , the second connecting rod 35 is clamped and fixed on the first connecting rod 33 by a first clamp 34 , and the second clamp 36 is clamped and fixed on the second connecting rod 35 .

[0040] In this embodiment, the second connecting rod 35 is clamped and fixed on the first connecting rod 33 by the first clamp 34, and the second clamp 36 is clamped and fixed on the second connecting rod 35. The position and rotation angle of the second clamp 36 can be adjusted at multiple angles to meet the straightness measurement requirements of different objects 5 to be detected.

[0041] See also Figure 1 and 2 In some embodiments of the present invention, a slide rail 11 is provided on the base 1 , and a slider 31 is correspondingly provided on the clamping device 3 , and the slider 31 slides on the slide rail 11 .

[0042] In this embodiment, the support 32 is set on the slider 31. The slider 31 slides on the slide rail 11, driving the detector 4 clamped on the second clamp 36 to move, which can reduce the error existing in the handheld detector 4 in detecting the straightness of the surface to be measured. The measurement accuracy is high and the straightness of the workpiece can be accurately measured.

[0043] See also Figure 5 In some embodiments of the present invention, the detector 4 is a dial indicator, which includes a dial indicator body 41 and a pointer 42 , and the pointer 42 is rotatably connected to the dial indicator body 41 .

[0044] In this embodiment, a needle 42 is rotatably mounted on the dial indicator body 41. When the dial indicator is fixed by the second fixture 36, if the needle 42 has not yet contacted the object 5 to be inspected, the needle 42 can be rotated to contact the object 5 to achieve fine adjustment of the dial indicator, eliminating the need to readjust the position of the second fixture 36 and reducing the time required for straightness measurement. The dial indicator body 41 is also provided with a dial 43 for displaying the straightness reading.

[0045] See also Figure 5 In some embodiments of the present invention, a clamping rod 44 is further provided on the dial indicator body 41 , and the clamping portion 362 clamps the clamping rod 44 .

[0046] See also Figure 5 In some embodiments of the present invention, the fixing block 2 is provided with a limiting groove 21 for limiting the position of the object 5 to be detected.

[0047] In this embodiment, the shape of the fixing block 2 can be adjusted according to the object 5 to be detected, and the limiting groove 21 provided on the fixing block 2 can also be determined according to the object 5 to be detected. Figure 1 If the detection object 5 is a scraper, the cross section of the fixing block 2 is L-shaped, and one side of the scraper abuts against the side wall of the limiting groove 21. Figure 1 If the detection object 5 is a cylindrical workpiece, the limiting groove 21 is a V-shaped groove.

[0048] The above are only preferred embodiments of the present invention and do not limit the patent scope of the present invention. All equivalent structural transformations made by using the contents of the present invention specification and drawings under the utility model concept, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A straightness inspection device, characterized in that: It includes a base, a fixing block, a clamping device and a detector; The fixed block is detachably mounted on the base and is used to place the object to be detected. The clamping device is slidably mounted on the base. The detection direction of the object to be detected is consistent with the sliding direction of the clamping device. The clamping device includes a plurality of clamping parts, which are used to clamp and fix the detector. The detector is used to determine the straightness of the object to be detected.

2. The straightness inspection device according to claim 1, characterized in that: The clamping device includes a second clamp, the second clamp includes a fixing portion, and the plurality of clamping portions are all arranged on the fixing portion.

3. The straightness inspection device according to claim 2, characterized in that: The clamping device further comprises a support, a first connecting rod, a first clamp and a second connecting rod; The support is slidably arranged on the base, the first connecting rod is arranged on the support, the second connecting rod is clamped and fixed on the first connecting rod by a first clamp, and the second clamp is clamped and fixed on the second connecting rod.

4. The straightness inspection device according to claim 1, characterized in that: The base is provided with a slide rail, and the clamping device is correspondingly provided with a slider, and the slider slides on the slide rail.

5. The straightness inspection device according to any one of claims 1 to 4, characterized in that: The detector is a dial gauge, which includes a dial gauge body and a needle, and the needle is rotatably connected to the body.

6. The straightness inspection device according to claim 5, characterized in that: A clamping rod is also provided on the dial gauge body, and the clamping part clamps the clamping rod.

7. The straightness inspection device according to any one of claims 1 to 4, characterized in that: The fixing block is provided with a limiting groove for limiting the position of the object to be detected.

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