Portable concentricity detector

Abstract

The utility model discloses a portable concentricity detector, which comprises a base, a supporting plate fixedly connected to the left upper end of the base, a first fixing pin rotationally mounted at the upper end of the supporting plate, a second fixing pin arranged on the right side of the first fixing pin, and a connecting mechanism, the connecting mechanism comprises a connecting plate fixedly connected to the upper right end of the base, a connecting bolt used for adjustment, a fixing strip fixedly connected to the upper end of the base and a vertical plate, a left-right sliding structure and a vertical moving plate are formed between the vertical plate and the fixing strip, and the moving plate moves left and right on the front side of the upper end of the base. And a supporting strip is slidably connected to the upper part of the moving plate. According to the portable concentricity detector, a detected workpiece can be conveniently and stably clamped and positioned, the crank is combined to drive the second fixing pin to rotate, so that the detected workpiece is driven to rotate, and concentricity of different positions of the workpiece can be detected.

Description

Technical Field

[0001] The utility model relates to the technical field related to concentricity detectors, in particular to a portable concentricity detector. Background Art

[0002] A concentricity tester is a precision measuring tool used to measure and inspect parameters such as roundness, concentricity, circumferential runout, and cross-sectional difference of shaft parts. It is widely used for precise measurement of roundness and concentricity of shaft parts, measurement of circumferential runout, cross-sectional difference, and simultaneous precision measurement of multiple-point parameters.

[0003] For example, announcement number CN207797996U discloses a shaft concentricity detector, including a base, a precision linear slide rail mounted on the base, a first V-frame and a second V-frame provided on the slide rail, the first V-frame and the second V-frame having the same height and size. The utility model can adjust the positions of the first V-frame and the second V-frame by means of slide rails according to the different shaft specifications, thereby effectively expanding the scope of use of the concentricity detector. The concentricity detector of the utility model adopts mechanical structures such as precision bearings and pulley mechanisms to drive the rotation of the shaft to be detected, thereby avoiding manual rotation of the shaft, which not only saves manpower but also greatly improves the accuracy of the measurement results and the detection efficiency;

[0004] However, the prior art has problems such as inconvenience in stably clamping and fixing the workpiece to be inspected, inconvenience in driving the workpiece to be inspected to rotate, and inconvenience in adjusting the position of the concentricity detector body according to the inspected position of the workpiece. For example, the comparative patents listed above have such problems.

[0005] Therefore, we proposed a portable concentricity detector to solve the above problems. Utility Model Content

[0006] The purpose of the present utility model is to provide a portable concentricity tester to solve the problems in the prior art proposed in the above background technology, such as the inconvenience in stably clamping and fixing the workpiece to be tested, the inconvenience in driving the workpiece to be tested to rotate, and the inconvenience in adjusting the position of the concentricity tester body according to the tested position of the workpiece.

[0007] To achieve the above object, the utility model provides the following technical solution: a portable concentricity tester, comprising a base, a support plate fixedly connected to the upper left end of the base, a first fixing pin rotatably mounted on the upper end of the support plate, and a second fixing pin arranged on the right side of the first fixing pin;

[0008] Wherein, a concentricity detector body is provided above the base;

[0009] Also includes:

[0010] A connecting mechanism, comprising a connecting plate fixedly connected to the upper right end of the base, a connecting bolt for adjustment, and a fixing bar fixedly connected to the upper end of the base;

[0011] A vertical plate, wherein the vertical plate and the fixed bar form a left-right sliding structure, and a second fixed pin is rotatably installed on the upper part of the vertical plate, and the vertical plate drives the second fixed pin to drive the upper part of the base to move left-right;

[0012] The movable plate is in a vertical state and moves left and right on the front side of the upper end of the base. A support bar is slidably connected above the movable plate, and the concentricity detector body is installed on the rear side of the upper end of the support bar.

[0013] Preferably, the connecting bolt is threadedly connected to the middle portion of the connecting plate, and the connecting bolt and the vertical plate are connected by rotation.

[0014] Preferably, the right end of the second fixing pin is fixedly connected to a crank.

[0015] Preferably, the front side of the upper end of the base is fixedly connected to a limit plate, and the upper end of the limit plate is provided with fixed grooves at equal intervals, a left-right sliding structure is formed between the limit plate and the movable plate, and movable blocks are fixedly connected to the front and rear sides of the lower end of the movable plate;

[0016] Wherein, a left-right sliding structure is formed between the movable block and the limiting plate.

[0017] Preferably, a spring is provided on the inner side of the lower end of the movable plate, and the movable end of the spring is fixedly connected to the movable plate, the movable plate is arranged through the middle of the lower end of the movable plate, and the movable plate is fixedly connected to the middle of the movable sleeve.

[0018] Preferably, the movable sleeve is arranged on the outside of the lower end of the movable plate, and the front and rear ends of the movable sleeve are fixedly connected with fixed blocks for limiting. The movable sleeve drives the fixed block to move up and down at the lower end of the movable plate, and the fixed block is engaged in the fixed groove at the corresponding position.

[0019] Preferably, the support bar and the movable plate are limited by a fixing bolt, and the fixing bolt and the support bar as well as the fixing bolt and the movable plate are all threadedly connected.

[0020] Compared with the prior art, the beneficial effects of the present invention are as follows: the portable concentricity detector facilitates the stable clamping and positioning of the workpiece to be inspected by means of the connection mechanism and the first fixed pin, and the crank drives the second fixed pin to rotate, thereby driving the workpiece to be inspected to rotate, and the position of the concentricity detector body is adjusted by sliding between the movable plate and the limit plate, and the support bar slides up and down on the upper end of the movable plate, so that the concentricity detector body can detect the concentricity of different positions of the workpiece;

[0021] 1. A first fixing pin and a connecting mechanism are provided. The connecting mechanism includes a connecting plate, a connecting bolt and a fixing bar. Through the setting of the connecting mechanism and the first fixing pin, the vertical plate and the second fixing pin are driven to move left and right, so as to stably clamp and position the workpiece to be inspected;

[0022] 2. A second fixed pin and a crank are provided. The crank drives the second fixed pin to rotate at the upper end of the vertical plate, thereby driving the workpiece being inspected to rotate;

[0023] 3. A limit plate, a movable plate and a support bar are provided. The movable plate and the limit plate slide left and right, and the support bar slides up and down on the upper end of the movable plate, so as to facilitate the adjustment of the position of the concentricity detector body and detect different positions of the workpiece to be detected. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0025] Figure 2 This is a schematic diagram of the bottom view of the structure of the connecting bolt, fixing bar and vertical plate of the utility model;

[0026] Figure 3 For this utility model Figure 1 A in the middle is an enlarged structural diagram;

[0027] Figure 4 This is a schematic diagram of the exploded structure of the limit plate, movable plate, movable block, movable sleeve and fixed block of the utility model;

[0028] Figure 5 This is a schematic diagram of the exploded structure of the movable plate, movable plate, movable sleeve and fixed block of the utility model;

[0029] Figure 6 This is a front view structural diagram of the movable plate, support bar, concentricity detector body and fixing bolt of the utility model.

[0030] In the figure: 1. Base; 2. Support plate; 3. First fixing pin; 4. Connecting mechanism; 5. Connecting plate; 6. Connecting bolt; 7. Fixing bar; 8. Vertical plate; 9. Second fixing pin; 10. Crank handle; 11. Limiting plate; 12. Fixing slot; 13. Moving plate; 14. Movable block; 15. Spring; 16. Movable plate; 17. Movable sleeve; 18. Fixing block; 19. Support bar; 20. Concentricity tester body; 21. Fixing bolt. DETAILED DESCRIPTION

[0031] 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.

[0032] See also Figures 1-6 , the utility model provides the following technical solutions.

[0033] Example 1: In order to solve the problem in the prior art that it is inconvenient to stably clamp and fix the workpiece to be tested, this embodiment adopts the following technical solution: a portable concentricity tester is provided with a base 1, a support plate 2, a first fixing pin 3 and a connecting mechanism 4. The upper left end of the base 1 is fixedly connected to the support plate 2, and the upper end of the support plate 2 is rotatably mounted with the first fixing pin 3. The connecting mechanism 4 includes a connecting plate 5 fixedly connected to the upper right end of the base 1, a connecting bolt 6 for adjustment and a fixing bar 7 fixedly connected to the upper end of the base 1. The connecting bolt 6 is threadedly connected to the middle part of the connecting plate 5, and the connecting bolt 6 is connected to the vertical plate 8 by rotation, as shown in FIG. Figure 1 and Figure 2 As shown, one side of the workpiece to be inspected is placed on the right end of the first fixing pin 3, and the other end is placed on the left side of the second fixing pin 9. Then, the connecting bolt 6 in the middle of the threaded connecting plate 5 is rotated, and the connecting bolt 6 and the vertical plate 8 rotate. At this time, the connecting bolt 6 pushes the vertical plate 8 and the fixing bar 7 to slide, so that the vertical plate 8 drives the second fixing pin 9 to move left and right at the upper end of the base 1. The second fixing pin 9 squeezes and positions the other end of the workpiece. Combined with the setting of the second fixing pin 9 and the first fixing pin 3, the workpiece to be inspected can be fixed very conveniently.

[0034] Example 2: The existing portable concentricity detector is not convenient for adjusting the position of the concentricity detector body 20 according to the detected position of the workpiece. Therefore, by setting a limit plate 11, a fixed slot 12, a movable plate 13, a movable block 14, a spring 15, a movable plate 16, a movable sleeve 17, a fixed block 18, a support bar 19, a concentricity detector body 20 and a fixing bolt 21, the movable plate 13 is in a vertical state, and the movable plate 13 moves left and right on the front side of the upper end of the base 1, and the upper part of the movable plate 13 is slidably connected to the support bar 19, and the concentricity detector body 20 is installed on the rear side of the upper end of the support bar 19, the front side of the upper end of the base 1 is fixedly connected to the limit plate 11, and the upper end of the limit plate 11 is provided with fixed slots 12 at equal intervals, and a left and right sliding structure is formed between the limit plate 11 and the movable plate 13, and the lower end of the movable plate 13 is provided with a fixed slot 12 at equal intervals. The front and rear sides of the end are fixedly connected with movable blocks 14, and a left and right sliding structure is formed between the movable block 14 and the limiting plate 11. A spring 15 is provided on the inner side of the lower end of the movable plate 13, and the movable end of the spring 15 is fixedly connected with a movable plate 16. The movable plate 16 is arranged through the middle part of the lower end of the movable plate 13, and the movable plate 16 is fixedly connected to the middle part of the movable sleeve 17. The movable sleeve 17 is sleeved on the outer side of the lower end of the movable plate 13, and the front and rear ends of the movable sleeve 17 are fixedly connected with a fixed block 18 for limiting. The movable sleeve 17 drives the fixed block 18 to move up and down at the lower end of the movable plate 13, and the fixed block 18 is engaged in the fixed groove 12 at the corresponding position. The support bar 19 and the movable plate 13 are limited by a fixing bolt 21, and the fixing bolt 21 and the support bar 19 as well as the fixing bolt 21 and the movable plate 13 are all threaded connections, such as Figure 1 、 Figure 3 、 Figure 4 、 Figure 5 and Figure 6As shown, according to the detection position of the workpiece, by pulling the movable sleeve 17 upward, the movable sleeve 17 slides on the bottom of the movable plate 13, and at this time the movable sleeve 17 drives the movable plate 16 to slide upward, and the movable plate 16 squeezes the spring 15, so that the spring 15 is elastically deformed, and the movable sleeve 17 drives the fixed block 18 to move out of the fixed groove 12, thereby loosening the limit between the limit plate 11 and the movable plate 13, and then pulling the movable plate 13, the movable plate 13 slides between the limit plate 11, and at the same time the movable plate 13 drives the movable block 14 to slide between the limit plate 11, thereby improving the stability of the movable plate 13 during the movement process. When it moves to the corresponding detection position, the movable sleeve 17 is directly released. At this time, the spring 15 restores its elastic deformation, pushing the movable plate 16 to drive the movable sleeve 17 to slide downward, so that the movable sleeve 17 drives the fixed block 18 to engage in the fixed groove 12 at the corresponding position of the upper end of the limit plate 11, thereby facilitating the limiting of the position between the movable plate 13 and the limit plate 11, and then by pulling the support bar 19 up and down, the support bar 19 slides on the upper end of the movable plate 13, so that the support bar 19 drives the detection probe on the rear side of the concentricity detector body 20 to contact the workpiece, and then the fixing bolt 21 is rotated to limit the position between the movable plate 13 and the support bar 19.

[0035] Example 3: The existing portable concentricity tester is not convenient for rotating the workpiece to be tested, so by setting a vertical plate 8, a second fixed pin 9 and a crank 10, the upper end of the vertical plate 8 is rotatably installed with the second fixed pin 9, and the right end of the second fixed pin 9 is fixedly connected to the crank 10. As shown in the figure, after the workpiece is fixed and the position adjustment of the concentricity tester body 20 is completed, the second fixed pin 9 is driven to rotate at the upper end of the vertical plate 8 by rotating the crank 10, and then the workpiece is driven to rotate. The workpiece drives the first fixed pin 3 to rotate at the upper end of the support plate 2, so that the concentricity tester body 20 detects the concentricity of the workpiece, and the entire tester is small in size and can be used directly on the workbench. It is also very convenient to transport and carry.

[0036] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A portable concentricity detector, comprising a base (1), a support plate (2) fixedly connected to the upper left end of the base (1), a first fixing pin (3) rotatably mounted on the upper end of the support plate (2), and a second fixing pin (9) arranged on the right side of the first fixing pin (3); in, A concentricity detector body (20) is provided above the base (1); It is characterized by further comprising: A connecting mechanism (4), the connecting mechanism (4) comprising a connecting plate (5) fixedly connected to the upper right end of the base (1), a connecting bolt (6) for adjustment, and a fixing bar (7) fixedly connected to the upper end of the base (1); A vertical plate (8) is formed between the vertical plate (8) and the fixed bar (7) to slide left and right, and a second fixed pin (9) is rotatably installed above the vertical plate (8), and the vertical plate (8) drives the second fixed pin (9) to drive the upper part of the base (1) to move left and right; A movable plate (13) is in a vertical state, and the movable plate (13) moves left and right on the front side of the upper end of the base (1). A support bar (19) is slidably connected above the movable plate (13), and a concentricity detector body (20) is installed on the rear side of the upper end of the support bar (19).

2. A portable concentricity detector according to claim 1, characterized in that: The connecting bolt (6) is threadedly connected to the middle of the connecting plate (5), and the connecting bolt (6) and the vertical plate (8) are connected by rotation.

3. The portable concentricity detector according to claim 1, characterized in that: The right end of the second fixing pin (9) is fixedly connected to a crank handle (10).

4. The portable concentricity detector according to claim 1, characterized in that: The front side of the upper end of the base (1) is fixedly connected to a limit plate (11), and the upper end of the limit plate (11) is provided with fixed grooves (12) at equal intervals. A left-right sliding structure is formed between the limit plate (11) and the movable plate (13), and movable blocks (14) are fixedly connected to the front and rear sides of the lower end of the movable plate (13); Wherein, a left-right sliding structure is formed between the movable block (14) and the limiting plate (11).

5. The portable concentricity detector according to claim 4, characterized in that: A spring (15) is provided on the inner side of the lower end of the movable plate (13), and the movable end of the spring (15) is fixedly connected to the movable plate (16). The movable plate (16) is provided through the middle of the lower end of the movable plate (13), and the movable plate (16) is fixedly connected to the middle of the movable sleeve (17).

6. The portable concentricity detector according to claim 5, characterized in that: The movable sleeve (17) is sleeved on the outer side of the lower end of the movable plate (13), and the front and rear ends of the movable sleeve (17) are fixedly connected to fixed blocks (18) for limiting position. The movable sleeve (17) drives the fixed block (18) to move up and down at the lower end of the movable plate (13), and the fixed block (18) is engaged in the fixed groove (12) at the corresponding position.

7. The portable concentricity detector according to claim 1, characterized in that: The support bar (19) and the movable plate (13) are limited by a fixing bolt (21), and the fixing bolt (21) and the support bar (19) as well as the fixing bolt (21) and the movable plate (13) are all threadedly connected.

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