A V-groove measuring device

Abstract

The utility model belongs to the field of guide rail measurement, especially relate to a V type guide rail measuring device. The utility model provides a V type guide rail measuring device, include: V type guide rail body, the outside of V type guide rail body is equipped with measuring mechanism, measuring mechanism includes: measuring frame, the inside bottom end middle part of which is equipped with connecting frame, the inside rotation of connecting frame is connected with the bottom wheel, the top end middle part of measuring frame is connected with the mounting frame through telescopic component, the inside rotation of mounting frame is connected with the top wheel, two micrometers, two micrometers are symmetrically installed on the both sides of measuring frame through adjusting assembly, the probe of micrometer meets the side of V type guide rail body, and the measuring frame is stably connected in guide rail through the cooperation of top wheel and bottom wheel, and the bilateral inclined plane of two sides symmetrical micrometer can realize simultaneous measurement, need not multiple clamping, reduce repeated positioning operation, avoid cumulative error, improve measurement efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of guide rail measurement, and in particular relates to a V-shaped guide rail measuring device. Background Technology

[0002] In fields such as machinery manufacturing and construction, V-shaped guide rails are key components for achieving precision guidance. The machining accuracy and assembly quality of their two inclined surfaces directly affect the operational stability of the equipment. Measuring the inclined surface parameters of V-shaped guide rails is a crucial step in ensuring their performance. However, existing measuring devices have significant limitations in their structural design: most devices can only measure one inclined surface of the V-shaped guide rail individually. This single-sided measurement mode requires multiple clamping and adjustments to complete the inspection of both inclined surfaces, which not only increases the complexity of the operation but also easily leads to cumulative errors due to repeated positioning, resulting in low measurement efficiency and making it difficult to meet the needs of mass production or rapid on-site testing. Utility Model Content

[0003] The purpose of this invention is to address the aforementioned technical problems by providing a V-shaped guide rail measuring device. The measuring frame is stably connected to the guide rail through the cooperation of the top wheel and the bottom wheel. The symmetrical dial indicators on both sides can simultaneously measure the inclined planes on both sides, eliminating the need for multiple clamping operations, reducing repetitive positioning operations, avoiding cumulative errors, and improving measurement efficiency.

[0004] In view of this, the present invention provides a V-shaped guide rail measuring device, comprising: a V-shaped guide rail body, wherein a measuring mechanism is provided on the outer side of the V-shaped guide rail body, the measuring mechanism comprising:

[0005] The measuring frame has a connecting frame at the middle of its inner bottom end, and the inner side of the connecting frame is rotatably connected to a bottom wheel;

[0006] The measuring frame is connected to a mounting frame at the top center via a telescopic assembly, and a top wheel is rotatably connected to the inner side of the mounting frame.

[0007] Two dial indicators are symmetrically mounted on both sides of the measuring frame via an adjustment assembly, with the probes of the dial indicators connected to the side of the V-shaped guide rail body.

[0008] The telescopic component can drive the mounting frame to rise and fall vertically, so as to adjust the top wheel to press against the top of the V-shaped guide rail body, and cooperate with the bottom wheel to abut against the bottom of the V-shaped guide rail body, so that the measuring frame is slidably connected to the outside of the V-shaped guide rail body through the bottom wheel and the top wheel.

[0009] In this technical solution, the measuring frame is stably connected to the guide rail by the cooperation of the top wheel and the bottom wheel. The dial indicators on both sides can realize simultaneous measurement of the inclined planes on both sides without the need for multiple clamping, reducing repetitive positioning operations, avoiding cumulative errors, and improving measurement efficiency.

[0010] Furthermore, the telescopic component includes:

[0011] A connecting hole is provided at the top center of the measuring frame. A screw rod slides through the connecting hole. The mounting bracket is fixedly connected to the bottom end of the screw rod. A limiting component is provided between the screw rod and the connecting hole to guide the extension and retraction of the screw rod.

[0012] The nut is threaded and fitted onto the outside of the screw between the top of the mounting frame and the inner cavity of the measuring frame.

[0013] In this technical solution, the pressure of the top wheel is stably adjusted by the cooperation of the screw and nut, and the adjustment direction is ensured by the limit component, so that the measuring frame and the guide rail fit tightly and the state is stable, thus ensuring measurement consistency.

[0014] Furthermore, the adjustment component includes:

[0015] Two adjustment holes are respectively opened in the middle of both sides of the measuring frame. An adjustment block is slidably connected in each of the two adjustment holes. Rectangular holes are opened at both ends of the inner cavity of each of the two adjustment holes, and the rectangular holes are connected to the outer side of the measuring frame.

[0016] Both adjustment blocks have through holes in their middle sections, and the two dial indicators pass through the two through holes respectively. One end of each of the two adjustment blocks is threaded with a first fixing bolt, and the first fixing bolt abuts against the outer side of the dial indicator.

[0017] Four guide blocks are slidably connected in four rectangular holes, and the four guide blocks are fixedly connected to the two ends of two adjusting blocks by rotating components. Each of the four rectangular holes is provided with a second fixing bolt, and the four first fixing bolts are threadedly screwed into the four guide blocks.

[0018] In this technical solution, the adjustment component can flexibly adjust the position and fixed state of the dial indicator to adapt to the measurement needs of different specifications of V-shaped guide rails, enhance the versatility of the device, and eliminate the need to replace the measuring components.

[0019] Furthermore, the rotating assembly includes a rotating shaft, an adjusting chamber, and a third fixing bolt. The adjusting chamber is located inside the guide block. The rotating shaft is rotatably connected to one end of the adjusting block near the guide block, and the rotating shaft rotates through the guide block and is placed inside the adjusting chamber. The third fixing bolt is threaded through the guide block and is placed inside the adjusting chamber, where it rubs against the outside of the rotating shaft.

[0020] In this technical solution, the rotating component can finely adjust the detection angle of the dial indicator, ensuring that its detection end is precisely aligned with the side of the guide rail, reducing measurement errors caused by angular deviations, and improving detection accuracy.

[0021] Furthermore, multiple hand-held levers are fixedly connected to the outside of the nut.

[0022] In this technical solution, the handheld lever facilitates quick manual adjustment of the telescopic component, simplifies the adjustment of the top wheel pressure, saves adjustment time, and improves operational convenience.

[0023] Furthermore, the limiting component includes limiting grooves symmetrically opened on both sides of the screw and limiting blocks symmetrically fixedly connected to both sides of the inner cavity of the connecting hole, wherein the limiting grooves and limiting blocks correspond to and are adapted to each other.

[0024] In this technical solution, the limiting groove and the limiting block cooperate to prevent the screw from rotating during adjustment, ensuring the stability of the lifting direction of the top wheel and avoiding the impact of screw deviation on the fit between the measuring frame and the guide rail.

[0025] Furthermore, the top end of the limiting groove extends through to the top end face of the screw.

[0026] In this technical solution, the top of the limiting groove extends to the top of the screw, which facilitates processing and assembly, and allows for direct observation of the limiting engagement state, ensuring reliable operation of the limiting component and maintaining adjustment stability.

[0027] Furthermore, the bottom of the inner cavity of the measuring frame is symmetrically provided with limiting rollers via a moving component. The two limiting rollers limit the measuring frame on both sides of the V-shaped guide rail body to improve the stability of the measuring frame moving on the V-shaped guide rail body.

[0028] In this technical solution, the symmetrical limiting rollers can limit the left and right offset when the measuring frame slides, reduce the shaking during the movement, ensure stable contact between the dial indicator's detection end and the side of the guide rail, and reduce movement error.

[0029] Furthermore, the moving component includes an adjustment groove formed at the bottom of the inner cavity of the measuring frame. A bidirectional lead screw is rotatably connected between the two ends of the inner cavity of the adjustment groove. Moving blocks are symmetrically slidably connected in the adjustment groove. Two moving blocks are threaded onto the outer sides of the bidirectional lead screw. A connecting shaft is rotatably connected to the surface of each of the two moving blocks. The top ends of the two connecting shafts are fixedly connected to the bottom center of the two limiting rollers, respectively.

[0030] In this technical solution, the distance between the limiting rollers can be adjusted by a bidirectional screw, which can be adapted to V-shaped guide rails of different widths, enhancing the device's adaptability to diverse guide rails without the need to replace the limiting components.

[0031] The beneficial effects of this utility model are:

[0032] 1. This utility model uses the cooperation of the top wheel and the bottom wheel to make the measuring frame stably connected to the guide rail. The dial indicators on both sides can realize simultaneous measurement of the inclined plane on both sides without the need for multiple clamping, reducing repetitive positioning operations, avoiding cumulative errors, and improving measurement efficiency.

[0033] 2. This utility model allows for flexible adjustment of the position and fixed state of the dial indicator through the adjustment component, adapting to the measurement needs of different guide rail types, enhancing the versatility of the device, and eliminating the need to replace the measuring components.

[0034] 3. The symmetrical limiting rollers in this utility model can limit the left and right offset when the measuring frame slides, reduce the shaking during the movement, ensure stable contact between the dial indicator detection end and the side of the guide rail, and reduce movement error. Attached Figure Description

[0035] Figure 1 This is a schematic diagram of the connection structure between the measuring frame and the V-shaped guide rail body of this utility model;

[0036] Figure 2 This is a schematic diagram of the measuring frame structure of this utility model;

[0037] Figure 3 This is a schematic diagram of the connection structure between a portion of the bottom end of the measuring frame of this utility model and the bottom wheels and moving components;

[0038] Figure 4 This is a schematic diagram of the connection structure between a portion of the side end of the measuring frame and the adjustment assembly and dial indicator of this utility model;

[0039] Figure 5 This is a schematic diagram of the connection structure between the telescopic component and the top wheel of this utility model.

[0040] Figure 6 This is a sectional front view of the connection between the adjusting block and the guide block of this utility model.

[0041] In the diagram: 1. Measuring frame; 2. Limiting roller; 21. Connecting shaft; 22. Moving block; 23. Adjusting groove; 24. Bidirectional lead screw; 3. V-shaped guide rail body; 4. Screw; 41. Nut; 42. Hand handle; 43. Mounting frame; 44. Top wheel; 45. Connecting hole; 46. Limiting block; 47. Limiting groove; 5. Dial indicator; 6. Connecting frame; 61. Bottom wheel; 7. Adjusting hole; 71. Rectangular hole; 72. Adjusting block; 73. Second fixing bolt; 74. First fixing bolt; 75. Third fixing bolt; 76. Through hole; 77. Adjusting chamber; 78. Rotating shaft; 79. Guide block. Detailed Implementation

[0042] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0043] In the description of this application, it should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. For ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0044] It should be noted that the terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and are not limited in number; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0045] It should be noted that in the description of this application, the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this application. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0046] It should be noted that, in this application, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0047] Example 1:

[0048] like Figure 1-2 and Figure 5 As shown, this utility model provides a V-shaped guide rail measuring device, including: a V-shaped guide rail body 3, and a measuring mechanism provided on the outer side of the V-shaped guide rail body 3, the measuring mechanism including:

[0049] Measuring frame 1, the measuring frame is an isosceles trapezoid, and a connecting frame 6 is provided in the middle of the bottom of the inner side. The inner side of the connecting frame 6 is rotatably connected to the bottom wheel 61.

[0050] The top center of the measuring frame 1 is connected to a mounting frame 43 via a telescopic assembly, and a top wheel 44 is rotatably connected to the inner side of the mounting frame 43.

[0051] Two dial indicators 5 are symmetrically mounted on both sides of the measuring frame 1 via an adjustment assembly. Each dial indicator 5 includes a dial indicator head.

[0052] A fixed bushing is connected to the lower end of the dial indicator head 5;

[0053] The base has a positioning hole in the middle, and the lower end of the fixed bushing passes through the positioning hole;

[0054] The dial indicator probe 5 is located at the lower end of the fixed bushing that passes through the positioning hole;

[0055] A bolt is threaded to the upper end of the positioning hole, and the probe of the dial indicator 5 is connected to the side of the V-shaped guide rail body 3.

[0056] The telescopic component can drive the mounting frame 43 to rise and fall vertically, so as to adjust the top wheel 44 to press against the top of the V-shaped guide rail body 3, and cooperate with the bottom wheel 61 to abut against the bottom of the V-shaped guide rail body 3, so that the measuring frame 1 is slidably connected to the outside of the V-shaped guide rail body 3 through the bottom wheel 61 and the top wheel 44.

[0057] During operation, the top wheel 44 and bottom wheel 61 are driven by the telescopic assembly to clamp the V-shaped guide rail body 3 from the top and bottom directions, respectively, so that the measuring frame 1 is stably sleeved on the outside of the guide rail and can slide along the guide rail. During measurement, the position of the fixed bushing in the positioning hole can be adjusted by tightening the bolt, thereby adjusting the contact pressure between the dial indicator 5 probe and the inclined surfaces on both sides of the V-shaped guide rail. The dial indicator 5 head converts the dimensional parameters of the inclined surface of the guide rail into accurate numerical displays according to the displacement change of the probe. The dial indicators 5, which are symmetrically arranged on both sides, can contact the inclined surfaces on both sides of the guide rail at the same time, so that the parameters of both inclined surfaces can be measured in one clamping, avoiding the cumbersome operation of multiple clamping required by traditional single-sided measurement, reducing the cumulative error caused by repeated positioning from the root and improving measurement efficiency.

[0058] The telescopic assembly includes: a connecting hole 45, which is located at the top center of the measuring frame 1; a screw 4 slides through the connecting hole 45; a mounting bracket 43 is fixedly connected to the bottom end of the screw 4; a limiting component is provided between the screw 4 and the connecting hole 45 to guide the telescopic movement of the screw 4; and a nut 41, which is threaded onto the outside of the screw 4 between the mounting bracket 43 and the top end of the inner cavity of the measuring frame 1.

[0059] By rotating the nut 41, the screw 4 can be driven to rise and fall along the connecting hole 45 through the threaded transmission, thereby adjusting the clamping force of the top wheel 44 on the top of the guide rail. With the help of the limiting component, the screw 4 can only move axially without rotating, so that the top wheel 44 and the bottom wheel 61 can always maintain a stable clamping on the guide rail. This prevents the measuring frame 1 from slipping due to loose clamping, which would cause the measuring end of the dial indicator 5 to detach from the contact surface, thus ensuring the continuity and reliability of the measurement process.

[0060] Multiple hand levers 42 are fixedly connected to the outside of the nut 41.

[0061] The hand lever 42 provides a convenient point of force application for the nut 41. When rotating the nut 41, the hand lever 42 can be used to operate with less effort, quickly adjust the pressure of the top wheel 44 on the guide rail, reduce the adjustment time of the telescopic component, and improve the ease of operation of the device.

[0062] The limiting component includes limiting grooves 47 symmetrically opened on both sides of the screw 4 and limiting blocks 46 symmetrically fixedly connected to both sides of the cavity of the through hole 76. The limiting grooves 47 and the limiting blocks 46 correspond to and are adapted to each other.

[0063] By limiting the circumferential rotation of the screw 4 through the cooperation of the limiting block 46 and the limiting groove 47, the screw 4 can only move up and down along the axial direction of the through hole 76, ensuring that the top wheel 44 is always aligned with the center position of the top of the guide rail, avoiding the top wheel 44 from shifting due to the rotation of the screw 4 and thus disrupting the symmetrical clamping state of the measuring frame 1, and ensuring the consistency of the detection conditions of the dial gauges 5 on both sides.

[0064] The top end of the limiting groove 47 extends through to the top end face of the screw 4.

[0065] The limiting groove 47 extends through the top of the screw 4, facilitating the sliding of the limiting block 46 from the top of the screw 4 into the limiting groove 47 during assembly, thus simplifying the assembly process of the telescopic component. It also facilitates the disassembly of the screw 4, making it easier to replace worn parts during later maintenance and improving the maintainability of the device.

[0066] Example 2:

[0067] like Figure 2 , Figure 4 and Figure 6 As shown, the adjustment assembly includes: two adjustment holes 7, which are respectively opened in the middle of both sides of the measuring frame 1. An adjustment block 72 is slidably connected in each of the two adjustment holes 7. A rectangular hole 71 is opened at both ends of the inner cavity of each of the two adjustment holes 7, and the rectangular hole 71 communicates with the outer side of the measuring frame 1. A through hole 76 is opened in the middle of each of the two adjustment blocks 72. Two dial indicators 5 pass through the two through holes 76 respectively. A first fixing bolt 74 is threaded through one end of each of the two adjustment blocks 72, and the first fixing bolt 74 abuts against the outer side of the dial indicator 5. Four guide blocks 79 are slidably connected in the four rectangular holes 71 respectively, and the four guide blocks 79 are fixedly connected to the two ends of the two adjustment blocks 72 respectively through a rotating assembly. A second fixing bolt 73 is provided in each of the four rectangular holes 71, and the four first fixing bolts 74 are threadedly screwed into the four guide blocks 79 respectively.

[0068] The dial indicator 5 can be moved laterally along the guide rail by sliding the adjusting block 72 in the adjusting hole 7. The guide block 79 slides synchronously in the rectangular hole 71 and is locked in position by the second fixing bolt 73, so as to achieve precise adjustment of the lateral position of the dial indicator 5. The first fixing bolt 74 can firmly fix the dial indicator 5 on the adjusting block 72, ensuring stable contact between the detection end and the inclined surface of the guide rail. It can adapt to the measurement needs of V-shaped guide rails of different specifications without the need to replace the measuring device.

[0069] The rotating assembly includes a rotating shaft 78, an adjusting chamber 77, and a third fixing bolt 75. The adjusting chamber 77 is opened in the inner cavity of the guide block 79. The rotating shaft 78 is rotatably connected to one end of the adjusting block 72 near the guide block 79, and the rotating shaft 78 rotates through the guide block 79 and is placed in the adjusting chamber 77. A sealed bearing is provided between the rotating shaft 78 and the guide block 79. The third fixing bolt 75 is threaded through the guide block 79 and is placed in the adjusting chamber 77, where it rubs against the outside of the rotating shaft 78.

[0070] The rotating shaft 78 can drive the adjusting block 72 to rotate relative to the guide block 79, thereby adjusting the contact angle between the measuring end of the dial indicator 5 and the inclined surface of the guide rail. After the angle is adjusted, tightening the third fixing bolt 75 can lock the position of the rotating shaft 78 through friction, so that the measuring end of the dial indicator 5 always remains perpendicular to the inclined surface, avoiding measurement errors caused by angle deviation and further improving the detection accuracy.

[0071] Example 3:

[0072] like Figure 1-3 As shown, the bottom of the inner cavity of the measuring frame 1 is symmetrically provided with limiting rollers 2 through a moving component. The two limiting rollers 2 are limited on both sides of the V-shaped guide rail body 3 to improve the stability of the measuring frame 1 moving on the V-shaped guide rail body 3.

[0073] When the measuring frame 1 slides, the two side limit rollers 2 always roll against the side of the V-shaped guide rail body. The physical limit restricts the shaking of the measuring frame 1 along the width of the guide rail, and prevents the dial indicator 5 from being displaced relative to the inclined plane due to the frame body offset, thus ensuring the stability of the detection point position during the measurement process.

[0074] The moving component includes an adjustment groove 23 at the bottom of the inner cavity of the measuring frame 1. A bidirectional lead screw 24 is rotatably connected between the two ends of the inner cavity of the adjustment groove 23. Moving blocks 22 are symmetrically slidably connected inside the adjustment groove 23. The two moving blocks 22 are respectively threaded onto the outer sides of the bidirectional lead screw 24. A connecting shaft 21 is rotatably connected to the surface of each of the two moving blocks 22. The top ends of the two connecting shafts 21 are respectively fixedly connected to the bottom center of the two limiting rollers 2.

[0075] By rotating the bidirectional lead screw 24, two moving blocks 22 can be driven to move symmetrically closer or further away along the adjusting groove 23, thereby adjusting the distance between the two limiting rollers 2, so that the limiting rollers 2 can be adapted to V-shaped guide rails of different widths. The limiting rollers 2 are adjusted synchronously with the moving blocks 22 through the rotating shaft 78, and always maintain close contact with the side of the guide rail, ensuring that they can play a stable limiting role on guide rails of different specifications, and enhancing the versatility of the device.

[0076] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A V-shaped guide rail measuring device, comprising: A V-shaped guide rail body (3), wherein a measuring mechanism is provided on the outer side of the V-shaped guide rail body (3), characterized in that: the measuring mechanism includes: The measuring frame (1) has a connecting frame (6) at the middle of its inner bottom end, and the inner side of the connecting frame (6) is rotatably connected to a bottom wheel (61); The measuring frame (1) has a mounting frame (43) connected to the top center via a telescopic assembly, and a top wheel (44) is rotatably connected to the inner side of the mounting frame (43). Two dial indicators (5) are symmetrically mounted on both sides of the measuring frame (1) through an adjustment assembly. The probes of the dial indicators (5) are connected to the side of the V-shaped guide rail body (3). The telescopic component can drive the mounting frame (43) to rise and fall vertically, so as to adjust the top wheel (44) to press against the top of the V-shaped guide rail body (3), and cooperate with the bottom wheel (61) to abut against the bottom of the V-shaped guide rail body (3), so that the measuring frame (1) is slidably connected to the outside of the V-shaped guide rail body (3) through the bottom wheel (61) and the top wheel (44).

2. The V-shaped guide rail measuring device according to claim 1, characterized in that, The telescopic component includes: A connecting hole (45) is provided at the top center of the measuring frame (1). A screw (4) slides through the connecting hole (45). The mounting frame (43) is fixedly connected to the bottom end of the screw (4). A limiting component is provided between the screw (4) and the connecting hole (45) to guide the extension and retraction of the screw (4). Nut (41) is threaded and fitted on the outside of screw (4) between the top of the inner cavity of mounting bracket (43) and measuring bracket (1).

3. The V-shaped guide rail measuring device according to claim 1, characterized in that, The adjustment component includes: Two adjustment holes (7) are respectively opened in the middle of both sides of the measuring frame (1). An adjustment block (72) is slidably connected in each of the two adjustment holes (7). A rectangular hole (71) is opened at both ends of the inner cavity of each of the two adjustment holes (7), and the rectangular hole (71) is connected to the outside of the measuring frame (1). Both adjustment blocks (72) have through holes (76) in the middle, and the two dial indicators (5) pass through the two through holes (76) respectively. One end of each adjustment block (72) is threaded through with a first fixing bolt (74), and the first fixing bolt (74) abuts against the outside of the dial indicator (5). Four guide blocks (79) are slidably connected in four rectangular holes (71), and the four guide blocks (79) are fixedly connected to the two ends of two adjusting blocks (72) respectively through rotating components. Each of the four rectangular holes (71) is provided with a second fixing bolt (73), and the four first fixing bolts (74) are threadedly connected to the four guide blocks (79).

4. The V-shaped guide rail measuring device according to claim 3, characterized in that, The rotating assembly includes a rotating shaft (78), an adjusting chamber (77), and a third fixing bolt (75). The adjusting chamber (77) is opened in the inner cavity of the guide block (79). The rotating shaft (78) is rotatably connected to one end of the adjusting block (72) near the guide block (79), and the rotating shaft (78) rotates through the guide block (79) and is placed inside the adjusting chamber (77). The third fixing bolt (75) is threaded through the guide block (79) and is placed inside the adjusting chamber (77) and rubs against the outside of the rotating shaft (78).

5. A V-shaped guide rail measuring device according to claim 2, characterized in that, Multiple hand levers (42) are fixedly connected to the outside of the nut (41).

6. The V-shaped guide rail measuring device according to claim 2, characterized in that, The limiting component includes limiting grooves (47) symmetrically opened on both sides of the screw (4) and limiting blocks (46) symmetrically fixedly connected to both sides of the inner cavity of the connecting hole (45). The limiting grooves (47) and the limiting blocks (46) correspond to and are adapted to each other.

7. A V-shaped guide rail measuring device according to claim 6, characterized in that, The top end of the limiting groove (47) extends through to the top end face of the screw (4).

8. The V-shaped guide rail measuring device according to claim 1, characterized in that, The bottom of the inner cavity of the measuring frame (1) is symmetrically provided with limiting rollers (2) through a moving component. The two limiting rollers (2) are limited on both sides of the V-shaped guide rail body (3) to improve the stability of the measuring frame (1) moving on the V-shaped guide rail body (3).

9. A V-shaped guide rail measuring device according to claim 8, characterized in that, The moving component includes an adjustment groove (23) at the bottom of the inner cavity of the measuring frame (1). A bidirectional lead screw (24) is rotatably connected between the two ends of the inner cavity of the adjustment groove (23). Moving blocks (22) are symmetrically slidably connected inside the adjustment groove (23). The two moving blocks (22) are respectively threaded on the outer sides of the bidirectional lead screw (24). The surfaces of the two moving blocks (22) are rotatably connected to connecting shafts (21). The top ends of the two connecting shafts (21) are respectively fixedly connected to the bottom center of the two limiting rollers (2).

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