Location degree measuring jig

Abstract

The utility model discloses a location degree measuring jig. The location degree measuring jig is used for carrying out location degree measurement on a to-be-measured piece and comprises a jig body, a fixing assembly and a measuring meter. Wherein the fixing assembly comprises a first fixing part and a second fixing part which are oppositely arranged, the first fixing part is fixedly connected with the jig main body, the second fixing part is movably connected with the jig main body, and the first fixing part and the second fixing part are used for forming a fixing space to fix one end of a to-be-measured piece; and the measuring meter is connected with the jig main body and is used for measuring the position degree of the other end of the fixed to-be-measured piece. The jig provided by the utility model can measure the position degree of the to-be-measured piece, and is simple in structure, low in cost and high in measurement efficiency.

Description

Technical Field

[0001] The present application relates to the field of mechanical processing technology, and in particular to a position measurement jig. Background Art

[0002] Position tolerance is the range of positional variation allowed for an axis or center plane of a shape. This refers to the range of variation allowed for the actual position of an axis or center plane. It limits the amount by which the measured element's actual position can vary from its ideal position. Position tolerance, when assessing the accuracy of an element's actual position, is based on the ideal position given on the drawing. Generally, position tolerance includes point position, line position, and surface position.

[0003] In the prior art, three-coordinate measuring tools are generally used to measure the position of products. However, the existing three-coordinate measuring tools have slow measurement speeds and high measurement costs. Utility Model Content

[0004] The present application provides a position measurement jig to solve the technical problems in the prior art of slow measurement speed and high measurement cost when three-coordinate measuring tools are used to measure the position of products.

[0005] To solve the above-mentioned technical problems, the present application adopts a technical solution: providing a position measurement jig for measuring the position of a workpiece to be measured, the jig comprising: a jig body, a fixing assembly, and a measuring scale. The fixing assembly comprises a first fixing portion and a second fixing portion disposed opposite each other, the first fixing portion being fixedly connected to the jig body, and the second fixing portion being movably connected to the jig body, the first fixing portion and the second fixing portion being used to form a fixed space to secure one end of the workpiece to be measured; the measuring scale is connected to the jig body and is used to measure the position of the other end of the fixed workpiece to be measured.

[0006] Furthermore, the second fixing part includes a movable block and a second fixing column, the second fixing column passes through the movable block and is fixedly connected to the movable block, the movable block is movably connected to the fixture body, and one end of the second fixing column is used to abut against the workpiece to be measured.

[0007] Furthermore, the second fixing part also includes a spring, the fixture also includes a second fixing block, the second fixing block forms a second through hole, the spring is sleeved on the periphery of the second fixing column, one end of the spring is connected to the movable block, the other end of the spring is connected to the second fixing block, and the other end of the second fixing column is inserted into the second through hole.

[0008] Furthermore, the jig also includes a third fixed block, which is fixedly connected to the jig body. The third fixed block is located on the side of the movable block away from the second fixed block. The third fixed block is formed with a third through hole, and one end of the second fixed column passes through the third through hole to abut against the workpiece to be measured.

[0009] Furthermore, the second fixing block, the third fixing block and the fixture body are integrally formed.

[0010] Furthermore, the first fixing part includes a first fixing block and a first fixing column, the first fixing block is connected to the fixture body, the first fixing column is fixed on the first fixing block, and the end of the first fixing column is used to abut against the workpiece to be measured.

[0011] Furthermore, the first fixing post and the second fixing post are arranged in pairs, and the axes of each pair of the first fixing post and the second fixing post are on the same straight line.

[0012] Furthermore, a mounting block is provided on the fixture body, and a measuring hole is opened in the mounting block. The mounting block is used to connect a measuring meter, and the measuring part of the measuring meter passes through the measuring hole to measure the position of the workpiece to be measured.

[0013] Furthermore, the fixture also includes a calibration pin, and a calibration hole is provided on the fixture body. The calibration hole is used to insert the calibration pin, and the calibration pin is used to calibrate the measuring meter.

[0014] Furthermore, the fixture body includes a first plane, and the fixing component and the measuring table are both arranged on the first plane.

[0015] Beneficial effects: Different from the prior art, the position measurement jig provided by the present application is used to perform position measurement on a workpiece to be measured, and the jig includes: a jig body, a fixing assembly, and a measuring table. The fixing assembly includes a first fixing portion and a second fixing portion that are relatively arranged, the first fixing portion is fixedly connected to the jig body, and the second fixing portion is movably connected to the jig body, and the first fixing portion and the second fixing portion are used to form a fixed space to fix one end of the workpiece to be measured; the measuring table is connected to the jig body and is used to perform position measurement on the other end of the fixed workpiece to be measured. The position measurement jig provided by the present application has a simple structure, low cost, high measurement efficiency, and strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 This is a structural diagram of an embodiment of a position measurement jig provided by the present application;

[0018] Figure 2 yes Figure 1 The schematic front view of the position measurement fixture shown;

[0019] Figure 3 yes Figure 1 The exploded diagram of the position measurement fixture shown;

[0020] Figure 4 yes Figure 1 A schematic structural diagram of an embodiment of a second fixing portion of a position measurement jig shown;

[0021] Figure 5 yes Figure 1 A schematic structural diagram of an embodiment of a position measurement jig including a jig body, a first fixing block, a second fixing block, and a third fixing block;

[0022] Figure 6 1 is a structural schematic diagram of an embodiment of a cross section of a piece to be measured. DETAILED DESCRIPTION

[0023] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. It will be understood that the specific embodiments described herein are only used to explain the present application, rather than to limit the present application. It should also be noted that, for ease of description, only some, rather than all, structures related to the present application are shown in the accompanying drawings. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0024] The terms "first," "second," and the like in this application are used to distinguish between different objects, not to describe a particular order. Furthermore, the terms "including," "having," and any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or apparatus comprising a series of steps or elements is not limited to the listed steps or elements, but may optionally include steps or elements not listed, or may optionally include other steps or elements inherent to the process, method, product, or apparatus.

[0025] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0026] This application provides a position measurement jig for measuring the position of a workpiece. This position measurement jig has a simple structure, low cost, and high measurement speed. The workpiece to be measured can be a tubular or cylindrical part. The following describes the position measurement jig in detail, using a raw material tube as an example.

[0027] See also Figure 1 and Figure 2 As shown, Figure 1 This is a structural diagram of an embodiment of a position measurement fixture provided by the present application. Figure 2 yes Figure 1 Specifically, the position measurement jig 10 (hereinafter referred to as the jig 10 ) includes: a jig body 11 , a fixing assembly 12 and a measuring table 13 .

[0028] The fixture body 11 is used to fix the fixing component 12 and the measuring table 13. The fixture body 11 can be a square plate, which can include a first plane 111. The fixing component 12 and the measuring table 13 can be both arranged on the first plane 111 to simplify the structure of the fixture 10. Figure 3 As shown, Figure 3 yes Figure 1 In the exploded schematic diagram of the position measurement fixture shown, the square plate further includes a second plane 112 perpendicularly connected to the first plane 111. In other embodiments, the fixing assembly 12 can be provided on the first plane 111, and the measuring table 13 can be connected to the second plane 112.

[0029] Specifically, such as Figure 1 and Figure 2 As shown, the fixing assembly 12 includes a first fixing portion 121 and a second fixing portion 122. The first fixing portion 121 is fixedly connected to the jig body 11, and the second fixing portion 122 is movably connected to the jig body 11. The first fixing portion 121 and the second fixing portion 122 are used to form a fixed space (not shown in the figure), and one end of the piece to be measured 20 is placed in the fixed space to fix the piece to be measured 20.

[0030] The second fixing portion 122 is movably connected to the fixture body 11 so that the operator can adjust the position of the second fixing portion 122 according to the diameter of the workpiece 20 to be measured, so that the fixing assembly 12 can be applied to workpieces 20 of various sizes.

[0031] The measuring gauge 13 is also provided on the fixture body 11 and is used to measure the position of the measuring surface at the other end of the fixed workpiece 20. The measuring gauge 13 can be a dial indicator or a micrometer.

[0032] When measuring the position of a workpiece 20, the position measuring jig 10 of the present application first adjusts the second fixing portion 122 to adjust the fixed space between the first fixing portion 121 and the second fixing portion 122, thereby securing one end of the workpiece 20 between the first fixing portion 121 and the second fixing portion 122. The position of the other end of the workpiece 20 is then measured using the measuring gauge 13. The position measuring jig 10 of the present application has a simple structure, low cost, and high measurement efficiency.

[0033] Furthermore, if Figure 2 As shown, the second fixing portion 122 includes a second fixing post 1221 and a movable block 1222. The second fixing post 1221 and the movable block 1222 are fixedly connected, and the second fixing post 1221 extends through the movable block 1222. The movable block 1222 is movably connected to the jig body 11. That is, the movable block 1222 is movable relative to the jig body 11. The movable block 1222 is designed to be grasped by an operator to adjust the position of the second fixing post 1221, thereby adjusting the position of the second fixing post 1221.

[0034] Furthermore, if Figure 2 As shown, the fixture body 11 may also be provided with a second fixing block 14, and the second fixing block 14 is fixedly connected to the fixture body 11, as shown in FIG. Figure 5 As shown, the second fixing block 14 is provided with a second through hole 141 .

[0035] like Figure 2 and Figure 4 As shown, the second fixing portion 122 may also include a spring 1223, which is sleeved around the outer periphery of the second fixing post 1221. One end of the second fixing post 1221 abuts the object 20 to be measured, and the other end of the second fixing post 1221 is inserted into the second through-hole 141. The second through-hole 141 guides the movement of the second fixing post 1221. One end of the spring 1223 is connected to the movable block 1222, and the other end of the spring 1223 is connected to the second fixing block 14. When the movable block 1222 drives the second fixing post 1221 toward the side closer to the second fixing block 14, it compresses the spring 1223 to expand the fixed space. When one end of the object 20 to be measured is placed in the fixed space, the movable block 1222 is released, and the retraction force of the spring 1223 acts on the second fixing post 1221, forcing the second fixing post 1221 to abut against the object 20 to be measured.

[0036] Both ends of the second fixing column 1221 are provided with chamfers to reduce damage to the second fixing column 1221 .

[0037] The second fixing block 14 and the fixture body 11 can be integrally formed to improve the structural stability of the fixture 10. In other embodiments, the second fixing block 14 can also be welded or adhesively fixed to the fixture body 11.

[0038] like Figure 2 and Figure 5 As shown, the jig 10 further includes a third fixing block 15 , which is disposed on the jig body 11 . The third fixing block 15 can be integrally formed with the jig body 11 , or the third fixing block 15 can be welded or adhesively fixed to the jig body 11 .

[0039] like Figure 5 As shown, the third fixing block 15 is disposed on a side of the movable block 1222 near the first fixing portion 121. The third fixing block 15 is provided with a third through-hole 151, through which one end of the second fixing post 1221 passes to abut against the object to be measured 20. The third fixing block 15 guides the movement of the second fixing post 1221, preventing it from shifting during movement.

[0040] like Figure 2 As shown, the first fixing portion 121 includes a first fixing column 1211 and a first fixing block 1212 . The first fixing block 1212 is connected to the fixture body 11 . The first fixing column 1211 is fixed on the first fixing block 1212 . The end of the first fixing column 1211 is used to abut against the workpiece 20 to be measured.

[0041] The number of first fixing posts 1211 and second fixing posts 1221 can be equal, for example, four. In other embodiments, the number of first fixing posts 1211 and second fixing posts 1221 can also be five, three, etc., depending on the length of the object 20 to be measured. The first fixing posts 1211 and second fixing posts 1221 are arranged in pairs, with the axes of each pair of first fixing posts 1211 and second fixing posts 1221 aligned on the same straight line. This allows for simultaneous clamping and securing of opposite ends of the object 20 to be measured, reducing bending of the object 20 to be measured and improving measurement accuracy.

[0042] In other embodiments, the first fixing posts 1211 and the second fixing posts 1221 may also be arranged alternately, so that the object to be measured 20 can be fixed from multiple points, thereby improving the stability of the fixation.

[0043] The first fixing block 1212 and the fixture body 11 can be integrally formed to improve the structural stability of the fixture 10. In other embodiments, the first fixing block 1212 can also be welded or adhesively fixed to the fixture body 11.

[0044] like Figure 5As shown, a first through hole 1213 may be provided on the first fixing block 1212 , and the first fixing column 1211 is snapped into the first through hole 1213 . This facilitates adjustment of the length of the first fixing column 1211 and replacement of the first fixing column 1211 .

[0045] like Figure 3 As shown, the first surface 111 of the fixture body 11 can be provided with a mounting block 17 for securing the measuring scale 13. Specifically, the mounting block 17 defines a measuring hole 171, through which the measuring portion 131 of the measuring scale 13 passes to measure the position of the workpiece 20 to be measured. In other embodiments, a fixing member can also be provided on the second surface 112 of the fixture body 11 to secure the measuring scale 13. This also allows the measuring scale 13 to be secured.

[0046] like Figure 3 As shown, the fixture 10 further includes a calibration pin 16, which is used to calibrate the measuring gauge 13. For example, the measuring gauge 13 may be a dial gauge, and the calibration pin 16 is used to reset the dial gauge to zero.

[0047] Specifically, if Figure 3 As shown, the fixture body 11 is provided with a calibration hole 161 for inserting a calibration pin 16. The measuring portion 131 of the measuring gauge 13 abuts against the calibration pin 16 to reset the measuring gauge 13 to zero. After calibration of the measuring gauge 13 is complete, the calibration pin 16 is removed to allow the workpiece 20 to be installed. The distance difference between the first fixing post 1211 and the calibration pin 16 in the direction in which the first fixing post 1211 extends is the theoretical deviation in the diameter of the pipe at both ends of the workpiece 20 to be measured.

[0048] In other embodiments, the fixture 10 may also use other calibration components to reset the measuring gauge 13 to zero. For example, the measuring gauge 13 may also be reset to zero using a moving plate.

[0049] The following is an example of how to use the fixture 10. When the workpiece 20 to be measured is a raw material pipe, Figure 6 As shown, the cross section of the workpiece 20 to be measured is D-shaped. First, pass one end of the calibration pin 16 through the calibration hole 161, and then make the measuring part 131 of the measuring gauge 13 abut against the calibration pin 16 to reset the measuring gauge 13 to zero. Then, hold the movable block 1222 by hand and move it toward the side away from the first fixed part 121, compress the spring 1223, so that the fixed space between the second fixed column 1221 and the first fixed column 1211 is larger. First, install the fixture in the x direction, place one end of the workpiece 20 to be measured between the first fixed column 1211 and the second fixed column 1221, and make the D plane 21 of the workpiece 20 to be measured face the measuring gauge 13 (as shown in FIG. Figure 6(a) in the figure), then loosen the movable block 1222. Under the action of the retraction force of the spring 1223, the second fixing column 1221 and the first fixing column 1211 are respectively abutted against the two ends of the workpiece 20 to complete the fixation of the workpiece 20. Then, the measuring portion 131 of the measuring table 13 is abutted against the D plane 21 of the workpiece 20 to measure the position of the workpiece 20, thereby obtaining the first deviation value X. Then, the jig is installed in the y direction so that the D plane 21 of the workpiece 20 to be measured faces the jig body 11, that is, the workpiece 20 to be measured is rotated 90 degrees (as shown in FIG. Figure 6 (b) in the figure), and then the position of the workpiece 20 to be measured is measured by the measuring part 131 of the measuring table 13, thereby obtaining the second deviation value Y, and finally obtaining the position of the workpiece 20 to be measured.

[0050] The fixture 10 provided in the present application has a simple structure, fewer assembled parts, and a low cost. It can also quickly measure the position of the workpiece 20 to be measured, with high measurement efficiency and accuracy, and is therefore highly practical.

[0051] The above description is only an implementation method of the present application and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the description and drawings of this application, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A position measurement jig, characterized in that: Used to measure the position of the workpiece to be measured, the fixture includes: Fixture body; A fixing assembly comprising a first fixing portion and a second fixing portion disposed opposite to each other, wherein the first fixing portion is fixedly connected to the fixture body, and the second fixing portion is movably connected to the fixture body, and the first fixing portion and the second fixing portion are used to form a fixing space to fix one end of the workpiece to be measured; A measuring table is connected to the fixture body and is used to measure the position of the other end of the fixed workpiece.

2. The fixture according to claim 1, characterized in that: The second fixing portion includes a movable block and a second fixing column, the second fixing column passes through the movable block and is fixedly connected to the movable block, the movable block is movably connected to the fixture body, and one end of the second fixing column is used to abut against the workpiece to be measured.

3. The fixture according to claim 2, characterized in that: The second fixing portion further includes a spring, and the fixture further includes a second fixing block, wherein the second fixing block forms a second via hole. The spring is sleeved on the periphery of the second fixing column, one end of the spring is connected to the movable block, the other end of the spring is connected to the second fixing block, and the other end of the second fixing column is inserted into the second through hole.

4. The fixture according to claim 3, characterized in that: The fixture further includes a third fixed block, which is fixedly connected to the fixture body and is located on a side of the movable block away from the second fixed block. The third fixing block is formed with a third through hole, and one end of the second fixing column passes through the third through hole to abut against the object to be measured.

5. The fixture according to claim 4, characterized in that: The second fixing block, the third fixing block and the fixture body are integrally formed.

6. The fixture according to claim 2, characterized in that: The first fixing portion includes a first fixing block and a first fixing column. The first fixing block is connected to the fixture body. The first fixing column is fixed on the first fixing block. The end of the first fixing column is used to abut against the workpiece to be measured.

7. The fixture according to claim 6, characterized in that: The first fixing column and the second fixing column are arranged in pairs, and the axes of each pair of the first fixing column and the second fixing column are on the same straight line.

8. The fixture according to claim 1, characterized in that: The fixture body is provided with a mounting block, which is provided with a measuring hole. The mounting block is used to connect the measuring meter, and the measuring part of the measuring meter passes through the measuring hole to measure the position of the workpiece to be measured.

9. The fixture according to claim 8, characterized in that: The fixture further includes a calibration pin. A calibration hole is provided on the fixture body. The calibration hole is used to insert the calibration pin, and the calibration pin is used to calibrate the measuring meter.

10. The fixture according to claim 1, characterized in that: The fixture body includes a first plane, and the fixing assembly and the measuring table are both arranged on the first plane.

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