Clamp parallelism measuring device

Abstract

The utility model relates to the technical field of machining workpiece measurement, in particular to a clamp parallelism measuring device. The utility model provides a clamp parallelism measuring device, which comprises a first measuring frame body, a second measuring frame body, a first adjusting piece, a measuring piece and a measuring reference piece, and is characterized in that the first measuring frame body is connected to the second measuring frame body, and the measuring reference piece is connected to the first measuring frame body; the measuring piece is connected to the second measuring frame body, the measuring end of the measuring piece is arranged opposite to the abutting end face of the measuring reference piece, a sample measuring position is arranged between the measuring end and the abutting end face, and the first adjusting piece is used for adjusting the relative distance between the measuring end and the abutting end face. According to the technical scheme, the size change is small when batch manufacturing needs to be checked during the period, timely detection can be achieved after each batch of samples are machined, and meanwhile the advantages of being visual in detection result, rapid and low in cost are achieved.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of machining workpiece measurement, in particular to a fixture parallelism measurement device. BACKGROUND

[0002] Parallelism error refers to the variation f of the actual element to be measured relative to the reference parallel direction, and the detection equipment includes test plates, levels, indicators and table stands, test rods, square boxes, wide seat right angle rulers, and comprehensive gauges. At present, for the parallelism deviation detection of the above two-axis parallelism, many enterprises have long used the distance between the two-axis ends on the same side to measure the two-axis parallelism. If the measured distance is equal, it is determined that the two-axis is parallel. However, there is a large error. Therefore, there is an urgent need for a method that can accurately detect the parallelism of the track, while meeting the advantages of intuitive, fast and low-cost detection results. CONTENT OF THE INVENTION

[0003] The present disclosure aims to at least solve one of the technical problems existing in the prior art or related art.

[0004] To this end, the present disclosure provides a fixture parallelism measurement device, comprising a first measurement frame body, a second measurement frame body, a first adjusting member, a measurement member, and a measurement reference member, the first measurement frame body is connected to the second measurement frame body, the measurement reference member is connected to the first measurement frame body, the measurement member is connected to the second measurement frame body, the measurement end of the measurement member and the abutting end face of the measurement reference member are oppositely arranged, and the relative distance between the measurement end and the abutting end face is adjusted by the first adjusting member.

[0005] In a feasible implementation, the measurement reference member comprises a reference plate and a connecting plate, the abutting end face is arranged on the reference plate, one end of the connecting plate is connected to the second measurement frame body, and the opposite end is connected to the reference plate, and the reference plate and the connecting plate are arranged in a T shape.

[0006] In a feasible implementation, the reference plate comprises a plurality of plate bodies, the plurality of plate bodies are detachably connected along the measurement direction, the plurality of plate bodies are each provided with the abutting end face, and the diameters of the plurality of plate bodies gradually increase or decrease from one side of the connecting plate to the other side.

[0007] In a feasible implementation, the connecting plate is detachably connected to the second measurement frame body and / or the reference plate.

[0008] In one feasible implementation, the second measuring frame includes a first clamping plate, a second clamping plate, and a plurality of fasteners. One end of the first clamping plate and the second clamping plate is provided with a measuring component clamping groove, and the measuring component clamping grooves on both sides are arranged opposite to each other to form a measuring component clamping position. The plurality of fasteners are spaced apart in the extending direction of the first clamping plate and the second clamping plate, and the fasteners are used to adjust the clamping force of the measuring component clamping position.

[0009] In one feasible implementation, a leveling mechanism is also included, which includes an adjustment knob and a set screw. The adjustment knob is connected to one end of the set screw, and the set screw is screwed into the measuring element clamping position through the first clamping plate and / or the second clamping plate. The set screw is used to adjust the levelness of the measuring end.

[0010] In one feasible implementation, the first measuring frame includes a positioning element, a first plate, and a second plate. The first plate and the second plate have an L-shaped folded plate structure. The first plate is arranged parallel to the connecting plate, and the connecting plate is perpendicular to the second plate. The second plate is provided with a sliding groove along its extension direction. The connecting plate is slidably connected to the sliding groove. The positioning element is used to fix the position of the connecting plate in the sliding groove.

[0011] In one feasible implementation, a reinforcing plate is provided at the connection position between the first plate and the second plate.

[0012] In one feasible implementation, the measuring element is configured as a dial indicator and / or a laser rangefinder.

[0013] In one feasible implementation, a second adjusting member is further included. The first measuring frame and the second measuring frame are connected through the first adjusting member, and the measuring member is connected to the second measuring frame through the second adjusting member. The second adjusting member is used to adjust the distance between the measuring end and the abutting end surface.

[0014] The above description is merely an overview of the technical solution provided in this disclosure. In order to better understand the technical means of this disclosure and to implement it in accordance with the contents of the specification, and to make the above and other features and effects of this disclosure more obvious and understandable, the following are specific examples of the implementation methods of this disclosure. Attached Figure Description

[0015] The accompanying drawings, which are incorporated in and form a part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure.

[0016] To more clearly illustrate the technical solutions in the embodiments of this disclosure or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, those skilled in the art can obtain other drawings based on these drawings without creative effort.

[0017] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of exemplary embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0018] Fig. 1 This is one of the front view structural schematic diagrams of this disclosure;

[0019] Fig. 2 This is the second frontal structural diagram of this disclosure;

[0020] Fig. 3 This is a schematic diagram of the first measuring frame structure disclosed herein.

[0021] in, Figs. 1 to 3 The correspondence between the reference numerals and component names in the attached drawings is as follows:

[0022] 100 - Sample measurement position; 200 - Item to be tested;

[0023] 1-First measuring frame; 11-Positioning component; 12-First plate; 13-Second plate; 2-Second measuring frame; 21-First clamping plate; 22-Second clamping plate; 23-Fastener; 24-Measuring component clamping groove; 3-First adjusting component; 4-Measuring component; 41-Measuring end; 5-Measuring reference component; 51-Abutting end face; 52-Reference plate; 521-Plate; 53-Connecting plate; 6-Leveling mechanism; 61-Including adjusting knob; 62-Setting screw; 7-Reinforcing plate. Detailed Implementation

[0024] To better understand the above-mentioned objectives, features, and advantages of this disclosure, the solutions disclosed herein will be further described below. It should be noted that, unless otherwise specified, the embodiments and features described herein can be combined with each other.

[0025] Numerous specific details are set forth in the following description in order to provide a full understanding of this disclosure, but this disclosure may also be implemented in other ways different from those described herein; obviously, the embodiments in the specification are only some, and not all, of the embodiments of this disclosure.

[0026] Currently, parallelism error refers to the variation *f* of the measured actual element relative to the reference parallel direction. Testing equipment includes: inspection plates, levels, indicators and gauge holders, inspection bars, square boxes, wide-base right-angle rulers, and comprehensive gauges. For the parallelism deviation detection of the two axes mentioned above, many companies have long used the method of measuring the distance between the ends of the two axes on the same side. If the measured distances are equal, the two axes are considered parallel, which actually contains a large error. Therefore, a method is needed that can accurately detect track parallelism while also providing intuitive, rapid, and low-cost results.

[0027] Based on this, embodiments of this disclosure provide a fixture parallelism measuring device, including a first measuring frame, a second measuring frame, a first adjusting member, a measuring member, and a measuring reference member. The first measuring frame is connected to the second measuring frame, the measuring reference member is connected to the first measuring frame, and the measuring member is connected to the second measuring frame. The measuring end of the measuring member is disposed opposite to the abutting end face of the measuring reference member, and the space between the measuring end and the abutting end face is set as a sample measuring position. The first adjusting member is used to adjust the relative distance between the measuring end and the abutting end face. By implementing the technical solution of this disclosure, for batch manufacturing requiring periodic verification, dimensional changes are small, and timely testing after each batch of samples is processed can be achieved. It also satisfies the advantages of intuitive and rapid testing results and low cost.

[0028] The parallelism measuring device for this fixture will be described in detail below through specific embodiments:

[0029] Reference Figs. 1 to 3 As shown, this disclosure provides a clamp parallelism measuring device, including a first measuring frame 1, a second measuring frame 2, a first adjusting member 3, a measuring member 4, and a measuring reference member 5. The first measuring frame 1 is connected to the second measuring frame 2, the measuring reference member 5 is connected to the first measuring frame 1, and the measuring member 4 is connected to the second measuring frame 2. The measuring end 41 of the measuring member 4 is disposed opposite to the abutting end face 51 of the measuring reference member 5, and the measuring end 41 and the abutting end face 51 are configured as a sample measuring position 100. The first adjusting member 3 is used to adjust the relative distance between the measuring end 41 and the abutting end face 51.

[0030] The first measuring frame 1 and the second measuring frame 2 of this disclosure together constitute the main frame of the device for assembling the measuring component 4 and the measuring reference component 5. The main frame can be equipped with a handheld part for handheld testing by an inspector, or it can be used as a fixed frame in the machine tool or other operating environment where the component to be tested is placed. A sample measuring position 100 is set between the measuring end 41 and the abutting end face 51. The sample is placed in the sample measuring position 100 to measure the parallelism of the two ends of the sample. Specifically, the abutting end face 51 of the measuring reference component 5 can be adaptively selected according to the shape of the sample being tested, and can be selected as line contact, point contact, or surface contact. This disclosure specifically uses surface contact, setting the abutting end face 51 as a plane to increase the contact area with the sample being measured. In use, the abutting end face 51 is moved along one side of the sample being measured, and the numerical change of the measuring component is observed. The maximum algebraic difference of the indicated value is the parallelism error. The first adjusting member 3 of this disclosure can connect the first measuring frame 1 and the second measuring frame 2. By adjusting the distance between the first measuring frame 1 and the second measuring frame 2, the relative distance between the measuring end 41 and the abutting end face 51 can be adjusted. Alternatively, the measuring member 4 can be connected to the first measuring frame 1 via the first adjusting member 3, and the relative distance between the measuring end 41 and the abutting end face 51 can be adjusted by adjusting the position of the measuring member 4 on the first measuring frame 1. Specifically, the first adjusting member 3 can be configured as a telescopic rod, a lead screw, a stepper motor, etc.

[0031] By implementing the technical solution disclosed herein, it is possible to achieve small dimensional variations in batch manufacturing that requires periodic verification, timely testing after each batch of samples is completed, and simultaneously satisfy the advantages of intuitive, rapid, and low-cost testing results.

[0032] In some embodiments, the measuring reference member 5 includes a reference plate 52 and a connecting plate 53. The abutting end face 51 is disposed on the reference plate 52. One end of the connecting plate 53 is connected to the second measuring frame 2, and the other end is connected to the reference plate 52. The reference plate 52 and the connecting plate 53 are arranged in a T-shape.

[0033] In this embodiment, the measuring reference 5 includes a reference plate 52 and a connecting plate 53. The abutting end face 51 is disposed on the reference plate 52. The reference plate 52 and the connecting plate 53 are arranged in a T-shape to reduce the space occupied by the connecting position of the measuring reference 5 and to make it lightweight, so as to facilitate manual measurement.

[0034] In some embodiments, the reference plate 52 includes a plurality of plates 521, which are detachably connected along the measurement direction. Each of the plates 521 is provided with an abutment end face 51, and the diameter of the plurality of plates 521 gradually increases or decreases from one side of the connecting plate 53 to the other side.

[0035] In this embodiment, the plurality of plates 521 of this disclosure are detachably connected along the measurement direction, and the diameter of the plurality of plates 521 gradually increases or decreases from one side of the connecting plate 53 to the other side. When measuring different samples, different plates 521 can be selected according to the shape and size of the sample to increase the adaptability of this disclosure to different types of samples.

[0036] In some embodiments, the connecting plate 53 is detachably connected to the second measuring frame 2 and / or the reference plate 52. In this embodiment, the detachable connection facilitates the maintenance, repair, and replacement of the measuring reference element 5. Different measuring reference elements 5 can be used depending on the type of sample. For example, the measuring reference element 5 can be designed with a diameter of plate 521 that gradually increases or decreases from one side of the connecting plate 53 to the other, in conjunction with the previous embodiment. Furthermore, plates of different shapes, such as circular or rectangular, can also be used, further increasing the adaptability of this disclosure to different samples and thus increasing measurement efficiency.

[0037] In some embodiments, the second measuring frame 2 includes a first clamping plate 21, a second clamping plate 22, and a plurality of fasteners 23. One end of the first clamping plate 21 and the second clamping plate 22 is provided with a measuring element clamping groove 24, and the measuring element clamping grooves 24 on both sides are arranged opposite to each other to form a measuring element clamping position. The plurality of fasteners 23 are spaced apart in the extending direction of the first clamping plate 21 and the second clamping plate 22, and the fasteners 23 are used to adjust the clamping force of the measuring element clamping position.

[0038] In this embodiment, such as Fig. 3 As shown, one end of the first clamping plate 21 and the second clamping plate 22 is provided with a measuring element clamping groove 24. The specific shape of the measuring element clamping groove 24 can be adapted to the type of measuring element. In this disclosure, the measuring element clamping groove 24 is specifically set as an arc-shaped through groove. Furthermore, an anti-slip pad can be provided on the inner wall of the measuring element clamping groove 24 to ensure that the measuring element 4 can be stably clamped in the measuring element clamping position. Specifically, the fastener 23 can be a bolt and nut structure. The bolt passes through the first clamping plate 21 and the second clamping plate 22. The distance between the first clamping plate 21 and the second clamping plate 22 is adjusted by the nuts on both sides of the bolt, thereby increasing or decreasing the clamping force of the measuring element clamping position.

[0039] In some embodiments, a leveling mechanism 6 is also included. The leveling mechanism 6 includes an adjustment knob 61 and a set screw 62. The adjustment knob 61 is connected to one end of the set screw 62. The set screw 62 is screwed into the measuring element clamping position through the first clamping plate 21 and / or the second clamping plate 22. The set screw 62 is used to adjust the levelness of the measuring end 41.

[0040] In this embodiment, when the connection between the measuring element 4 and the first measuring frame 1 is not fixed, i.e., it is configured as a clamping implementation of the measuring element clamping position, the measuring end 41 of the measuring element 4 may not be able to be horizontal when it is set in the measuring element clamping position. This disclosure uses the set screw 62 of the leveling mechanism 6 to limit the measuring element to ensure that the measuring element 4 is fixed at multiple points in multiple directions. For example, the set screw 62 is screwed upward from the bottom of the first measuring frame 1 into the measuring element clamping position, and fixes the measuring element 4 at four points with the first plate 21, the second plate 22 and the top of the measuring element clamping position, thus restricting the measuring element 4 to the minimum space occupied in the measuring element clamping position for fixing and leveling.

[0041] In some embodiments, the first measuring frame 1 includes a positioning member 11, a first plate 12, and a second plate 13. The first plate 12 and the second plate 13 have an L-shaped folded plate structure. The first plate 12 is arranged parallel to the connecting plate 53, and the connecting plate 53 is perpendicular to the second plate 13. The second plate 13 is provided with a sliding groove along the extending direction. The connecting plate 53 is slidably connected to the sliding groove. The positioning member 11 is used to fix the position of the connecting plate 53 in the sliding groove.

[0042] In this embodiment, the first plate 12 and the second plate 13 are L-shaped folded plate structures. A handheld portion can be provided on the first plate 12 for easy measurement operation. To better adapt to different sample types, the second plate 13 has a groove along its extension direction. The connecting plate 53 is slidably connected to the groove, allowing the measuring reference 5 to slide along the extension direction of the first plate 13 to ensure that the measuring reference 5 contacts the sample at a suitable position. The fixing member 11 can be a set screw screwed into the groove from the side wall to abut against the connecting plate 53 and position it in a suitable position within the groove. Furthermore, a reinforcing plate 7 is provided at the connection point of the first plate 12 and the second plate 13 to increase the structural strength of the first plate 12 and the second plate 13.

[0043] In some embodiments, the measuring element 4 is configured as a dial indicator and / or a laser rangefinder.

[0044] In this embodiment, the measuring component 4 is configured as a dial indicator and / or a laser rangefinder. A dial indicator is a length measuring instrument that converts general linear displacement (linear motion) into pointer rotation using gears or levers, and then reads the value on a scale. It can effectively check the shape and positional errors of a workpiece. Laser rangefinders are classified into phase-based rangefinders and pulse-based rangefinders according to their ranging methods. A pulse-based laser rangefinder emits a beam or a sequence of short pulsed laser beams towards the target during operation. A photoelectric element receives the laser beam reflected from the target, and a timer measures the time from emission to reception to calculate the distance from the observer to the target. A phase-based laser rangefinder detects distance by detecting the phase difference between emitted and reflected light as they propagate in space. Laser rangefinders are lightweight, small in size, easy to operate, fast, and accurate, with an error only one-fifth to a few hundredths that of other optical rangefinders.

[0045] In some embodiments, a second adjusting member is also included. The first measuring frame 1 and the second measuring frame 2 are connected by the first adjusting member 3, and the measuring member 4 is connected to the second measuring frame 2 by the second adjusting member. The second adjusting member is used to adjust the distance between the measuring end 41 and the abutting end face 51.

[0046] In this embodiment, the distance between the multi-segment measuring end 41 and the contact end face 51 is adjusted by the cooperation of the first adjusting member 3 and the second adjusting member, so as to better suit different types of samples.

[0047] In this disclosure, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; the term "multiple" refers to two or more unless otherwise expressly defined. The terms "install," "connect," "link," and "fix" should be interpreted broadly. For example, "connect" can be a fixed connection, a detachable connection, or an integral connection; "link" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this disclosure according to the specific circumstances.

[0048] In the description of this disclosure, it should be understood that the terms "upper," "lower," "left," "right," "front," "rear," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this disclosure and simplifying the description, and do not indicate or imply that the device or unit referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this disclosure.

[0049] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this disclosure. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0050] The above are merely preferred embodiments of this disclosure and are not intended to limit this disclosure. Various modifications and variations can be made to this disclosure by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this disclosure should be included within the scope of protection of this disclosure.

Claims

1. A fixture parallelism measuring device, comprising: The utility model relates to a first measuring frame body, second measuring frame body, first adjusting piece, measuring piece and measurement reference piece, the first measuring frame body is connected with the second measuring frame body connection, the measurement reference piece is connected with the first measuring frame body, the measuring piece is connected with the second measuring frame body, the measuring end of the measuring piece is opposite with the abutment end face of the measurement reference piece, and the measuring end is set with the abutment end face between the sample measurement site, and the first adjusting piece is used for adjusting the relative distance of the measuring end relative to the abutment end face.

2. The fixture parallelism measuring device of claim 1, wherein, The measurement reference piece includes a reference plate and a connecting plate, the abutment end face is provided on the reference plate, one end of the connecting plate is connected to the second measuring frame body, and the opposite end is connected to the reference plate, and the reference plate and the connecting plate are arranged in a T shape.

3. The fixture parallelism measuring device of claim 2, wherein, The reference plate includes a plurality of plate bodies, the plurality of plate bodies are detachably connected along the measurement direction, the plurality of plate bodies are each provided with the abutment end face, and the diameters of the plurality of plate bodies gradually increase or decrease from one side of the connecting plate to the other side.

4. The fixture parallelism measuring device of claim 2, wherein, The connecting plate is detachably connected with the second measuring frame body and / or the reference plate.

5. The fixture parallelism measuring device of claim 1, wherein, The second measuring frame body includes a first clamping plate, a second clamping plate, and a plurality of fasteners, the first clamping plate and the second clamping plate are provided with measuring piece clamping grooves at one end, and the measuring piece clamping grooves on both sides are oppositely arranged to form a measuring piece clamping position, wherein, The plurality of fasteners are arranged at intervals in the extension direction of the first clamping plate and the second clamping plate, and the fasteners are used to adjust the clamping force of the measuring piece clamping position.

6. The fixture parallelism measuring device of claim 5, wherein, It also includes a leveling mechanism, the leveling mechanism includes an adjusting knob and a jackscrew, the adjusting knob is connected to one end of the jackscrew, the jackscrew is screwed into the measuring piece clamping position through the first clamping plate and / or the second clamping plate, and the jackscrew is used to adjust the levelness of the measuring end.

7. The fixture parallelism measuring device of claim 2, wherein, The first measuring frame body includes a positioning piece, a first plate body, and a second plate body, the first plate body and the second plate body are arranged in an L-shaped folding plate structure, wherein the first plate body is arranged in parallel with the connecting plate, and the connecting plate is perpendicular to the second plate body, wherein The second plate body is provided with a sliding groove in the extension direction, the connecting plate is slidingly connected to the sliding groove, and the positioning piece is used to fix the position of the connecting plate in the sliding groove.

8. The fixture parallelism measuring device of claim 7, wherein, The connecting position of the first plate body and the second plate body is provided with a reinforcing plate.

9. The fixture parallelism measuring device of claim 1, wherein, The measuring piece is provided as a micrometer and / or a laser range finder.

10. The fixture parallelism measuring device of claim 1, wherein, It also includes a second adjusting piece, the first measuring frame body and the second measuring frame body are connected through the first adjusting piece, the measuring piece is connected with the second measuring frame body through the second adjusting piece, and the second adjusting piece is used to adjust the distance of the measuring end relative to the abutment end face.

Images