Clamping mechanism for micrometer detection

Abstract

The utility model discloses a clamping mechanism for micrometer detection, and relates to the technical field of micrometer detection, the clamping mechanism comprises an operation handle and an upper limiting block, the front end of the operation handle is provided with a ruler frame, a micrometric screw rod is arranged in the ruler frame close to the operation handle, small anvils are distributed in front of the micrometric screw rod, the left side of the inner part of the ruler frame is provided with a bearing frame, and the left side of the inner part of the bearing frame is provided with an upper limiting block. A limiting opening is formed in the outer side of the bearing frame, a threaded rod is connected into the bearing frame, an auxiliary rotating handle is installed at the upper end of the threaded rod, a movable transverse rod is connected to the outer side of the threaded rod, an upper limiting block is installed at the front end of the movable transverse rod, and a connecting rod is arranged on the right side of the upper limiting block. According to the clamping mechanism for micrometer detection, the upper limiting block is arranged, so that the problem that a workpiece is easy to fall off between the small anvil and the micrometric screw in the measurement process due to the fact that most micrometers do not have the workpiece limiting and fixing performance when the workpiece is measured is solved, and the overall use efficiency of the micrometers can be improved conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of micrometer detection, in particular to a clamping mechanism for micrometer detection. Background Art

[0002] The micrometer screw, also known as micrometer, micrometer screw, and micrometer, is a tool for measuring length more accurately than a vernier caliper. It can measure length accurately to 0.01mm and has a measuring range of several centimeters. A part of it is processed into a thread with a pitch of 0.5mm. When it rotates in the screw sleeve of the fixed sleeve B, it will move forward or backward. The movable sleeve C and the screw are connected as a whole, and its periphery is divided into 50 grids. The number of full turns of the screw is measured by the 0.5mm interval scale on the fixed sleeve, and the part less than one turn is measured by the scale around the movable sleeve. The final measurement result needs to be estimated to one decimal place. In order to improve the efficiency of workpiece detection, a micrometer is needed, but the existing micrometer still has the following shortcomings:

[0003] For example, the utility model with application number 202020679784.6 discloses a micrometer device, which arranges an ultrasonic detection probe on the anvil and micrometer screw of the micrometer device, and uses the micrometer measurement principle and the ultrasonic pulse reflection principle to measure the thickness. The thickness of the workpiece to be measured can be measured at one time, thereby confirming whether the thickness of the workpiece to be measured meets the requirements of relevant safety specifications. The measurement is accurate and efficient. However, similar to the comparative documents of the above-mentioned application, when the existing micrometers are used, most micrometers do not have the function of limiting and fixing the workpiece when measuring the workpiece, which makes the workpiece easy to fall off between the anvil and the micrometer screw during the measurement process, resulting in reduced practicality and reduced use efficiency of the micrometer.

[0004] Therefore, in view of this, the existing structure and defects are studied and improved, and a clamping mechanism for micrometer detection is proposed. Utility Model Content

[0005] The purpose of the utility model is to provide a clamping mechanism for micrometer detection to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a clamping mechanism for micrometer detection, comprising an operating handle and an upper limit block, a ruler frame is provided at the front end of the operating handle, and a micrometer screw is provided inside the ruler frame near the operating handle, and a small anvil is distributed in front of the micrometer screw, a receiving frame is provided on the left side inside the ruler frame, and a limiting opening is provided on the outside of the receiving frame, and a threaded rod is connected inside the receiving frame, and an auxiliary turning handle is installed on the upper end of the threaded rod, a movable cross bar is connected to the outside of the threaded rod, and an upper limit block is installed at the front end of the movable cross bar, and a connecting rod is provided on the right side of the upper limit block, and a limiting ring is added to the front end of the connecting rod, a limiting rod is connected inside the limiting ring, and a fixing block is added to the upper end of the limiting rod, a pneumatic rod is installed at the lower end of the ruler frame, and a lower limit block is provided on the upper end of the pneumatic rod, and a rubber anti-slip pad is added above the lower limit block.

[0007] Furthermore, the outer side of the micrometer screw is flush with the outer side of the small anvil, and the small anvil is threadedly connected to the ruler frame.

[0008] Furthermore, the outer side of the threaded rod is flush with the inner side of the receiving frame, and the threaded rod is rotatably connected to the receiving frame via an auxiliary turning handle.

[0009] Furthermore, the movable cross bar is embeddedly connected to the receiving frame, and the movable cross bar is slidably connected to the receiving frame via a threaded rod.

[0010] Furthermore, the inner dimensions of the limiting ring match the outer dimensions of the limiting rod, and the connecting rod is slidably connected to the limiting rod via the limiting ring.

[0011] Furthermore, the fixing block and the limiting rod are distributed vertically, and the fixing block and the limiting rod are threadedly connected.

[0012] Furthermore, the number of the pneumatic rods is two, and the two pneumatic rods are symmetrically arranged on both sides of the lower end of the lower limit block along the front center axis of the lower limit block.

[0013] Furthermore, the outer side of the lower limit block is flush with the outer side of the rubber anti-skid pad, and the lower limit block is fixedly connected to the rubber anti-skid pad.

[0014] The utility model provides a clamping mechanism for micrometer detection, which has the following beneficial effects:

[0015] 1. The utility model, through the setting of the threaded rod, can avoid the poor stability of the adjustment parts of most micrometers when the clamping mechanism for micrometer detection is used through the threaded rod arranged inside the left side of the scale frame, which makes it difficult for the special-shaped workpiece to be stably clamped and limited, resulting in the need to adjust the length of the micrometer screw for many times during use of the micrometer and the reduction of the convenience of equipment operation. A threaded rod is connected to the receiving frame arranged on the left side of the scale frame, and the threaded rod is rotated inside the receiving frame by rotating the auxiliary turning handle connected to the upper end of the threaded rod, and the movable cross bar connected to the outside of the threaded rod is rotated along with the rotation of the threaded rod. At the same time, the limiting opening on the right side of the receiving frame limits the movable cross bar, so that the movable cross bar slides up and down inside the receiving frame during the rotation of the threaded rod, thereby increasing the stability of the upper limit block at the front end of the movable cross bar during use by utilizing the threaded rod, and further reducing the difficulty of micrometer operation.

[0016] 2. The utility model provides an upper limit block, and when the clamping mechanism of the micrometer is used, the upper limit block distributed at the upper end of the ruler frame can be used to avoid that most micrometers do not have the performance of workpiece limit fixing when measuring the workpiece, which makes the workpiece easy to fall off from between the small anvil and the micrometer screw during the measurement, resulting in the problem of reduced efficiency of the micrometer. The limit rod is fixedly installed on the upper right end of the ruler frame by fastening bolts, the limit ring is installed on the outside of the limit rod, and the position of the limit ring is limited by the fixed block, and the left and right sides of the upper limit block are respectively fixed to the movable cross bar and the connecting rod, and then the stability is increased by the limit rod during the downward movement of the upper limit block, and the pneumatic rod arranged at the lower end of the ruler frame is operated to drive the lower limit block to move upward, and cooperate with the upper limit block to limit and clamp the workpiece to be detected, and at the same time, the rubber anti-skid pad added at the front end of the lower limit block is used to increase the friction between the workpiece and the workpiece, thereby preventing the workpiece from falling between the small anvil and the micrometer screw during the measurement. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall front cross-sectional structure of a clamping mechanism for micrometer detection of the utility model;

[0018] Figure 2 It is a schematic diagram of the three-dimensional structure of a scale frame of a clamping mechanism for micrometer detection according to the utility model;

[0019] Figure 3 The utility model is a schematic diagram of the three-dimensional structure of the lower limit block of the clamping mechanism for micrometer detection.

[0020] In the figure: 1. operating handle; 2. ruler frame; 3. micrometer screw; 4. small anvil; 5. receiving frame; 6. limit opening; 7. threaded rod; 8. auxiliary turning handle; 9. movable cross bar; 10. upper limit block; 11. connecting rod; 12. limit ring; 13. limit rod; 14. fixing block; 15. pneumatic rod; 16. lower limit block; 17. rubber anti-skid pad. DETAILED DESCRIPTION

[0021] The following is a further detailed description of the implementation of the present utility model in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present utility model, but cannot be used to limit the scope of the present utility model.

[0022] like Figure 1 and Figure 2 As shown, a clamping mechanism for micrometer detection includes an operating handle 1 and an upper limit block 10, a ruler frame 2 is provided at the front end of the operating handle 1, and a micrometer screw 3 is provided inside the ruler frame 2 near the operating handle 1, and a small anvil 4 is distributed in front of the micrometer screw 3, a receiving frame 5 is provided on the left side inside the ruler frame 2, and a limited position opening 6 is provided on the outside of the receiving frame 5, and a threaded rod 7 is connected inside the receiving frame 5, and an auxiliary turning handle 8 is installed on the upper end of the threaded rod 7, and a movable cross bar 9 is connected to the outside of the threaded rod 7, the outer side of the micrometer screw 3 is flush with the outer side of the small anvil 4, and the small anvil 4 is threadedly connected to the ruler frame 2, the outer side of the threaded rod 7 is flush with the inner side of the receiving frame 5, and the threaded rod 7 is rotatably connected to the receiving frame 5 through the auxiliary turning handle 8, and the movable cross bar 9 is connected to the outside of the threaded rod 7. The cross bar 9 is embedded in the receiving frame 5, and the movable cross bar 9 is slidably connected to the receiving frame 5 through the threaded rod 7. The receiving frame 5 arranged on the left side inside the ruler frame 2 is connected with the threaded rod 7. The threaded rod 7 is rotated by rotating the auxiliary turning handle 8 connected to the upper end of the threaded rod 7 so that the threaded rod 7 is rotated inside the receiving frame 5, and the movable cross bar 9 connected to the outer side of the threaded rod 7 is driven to rotate with the rotation of the threaded rod 7. At the same time, the limiting opening 6 opened on the right side of the receiving frame 5 limits the movable cross bar 9, so that the movable cross bar 9 slides up and down inside the receiving frame 5 during the rotation of the threaded rod 7, thereby increasing the stability of the upper limit block 10 at the front end of the movable cross bar 9 during use by using the threaded rod 7, further reducing the difficulty of operating the micrometer;

[0023] like Figures 1 to 3As shown, an upper limit block 10 is installed at the front end of the movable cross bar 9, and a connecting rod 11 is arranged on the right side of the upper limit block 10, and a limiting ring 12 is added to the front end of the connecting rod 11, and a limiting rod 13 is connected inside the limiting ring 12, and a fixing block 14 is added to the upper end of the limiting rod 13, a pneumatic rod 15 is installed at the lower end of the ruler frame 2, and a lower limit block 16 is arranged on the upper end of the pneumatic rod 15, and a rubber anti-slip pad 17 is added above the lower limit block 16, the internal size of the limiting ring 12 matches the external size of the limiting rod 13, and the connecting rod 11 is slidably connected to the limiting rod 13 through the limiting ring 12, the fixing block 14 and the limiting rod 13 are vertically distributed, and the fixing block 14 is threadedly connected to the limiting rod 13, and the number of pneumatic rods 15 is two, and the two pneumatic rods 15 are symmetrically arranged on both sides of the lower end of the lower limit block 16 along the front center axis of the lower limit block 16. The outer side of the lower limit block 16 is flush with the outer side of the rubber anti-skid pad 17, and the lower limit block 16 is fixedly connected to the rubber anti-skid pad 17. The limit rod 13 is fixedly installed on the upper right end of the ruler frame 2 by fastening bolts, and the limit ring 12 is installed on the outer side of the limit rod 13, and the position of the limit ring 12 is limited by the fixed block 14. The left and right sides of the upper limit block 10 are respectively fixed to the movable cross bar 9 and the connecting rod 11, so that the stability is increased by the limit rod 13 during the downward movement of the upper limit block 10. The pneumatic rod 15 arranged at the lower end of the ruler frame 2 is operated to drive the lower limit block 16 to move upward, and cooperate with the upper limit block 10 to limit and clamp the workpiece to be inspected. At the same time, the rubber anti-skid pad 17 added at the front end of the lower limit block 16 is used to increase the friction between the workpiece and the workpiece, thereby preventing the workpiece from falling from between the small anvil 4 and the micrometer screw 3 during the measurement process.

[0024] In summary, when the clamping mechanism of the micrometer detection is used, first, the workpiece to be measured is placed above the lower limit block 16, and the workpiece is moved to a horizontal position flush with the small anvil 4 and the micrometer screw 3 in coordination with the operation of the pneumatic rod 15, and the friction between the workpiece and the lower limit block 16 is increased by using the rubber anti-skid pad 17 added to the upper end of the lower limit block 16. Then, the receiving frame 5 provided on the left side inside the ruler frame 2 is connected to the threaded rod 7, and the threaded rod 7 is rotated inside the receiving frame 5 by rotating the auxiliary turning handle 8 connected to the upper end of the threaded rod 7, and as the threaded rod 7 rotates, the movable cross bar 9 connected to the outer side of the threaded rod 7 is driven to rotate accordingly, and at the same time, the limit opening 6 provided on the right side of the receiving frame 5 moves the movable cross bar 9 to the lower end of the micrometer screw 3. The cross bar 9 is limited so that the movable cross bar 9 slides up and down inside the receiving frame 5 during the rotation of the threaded rod 7. The limit rod 13 is fixedly installed on the upper right end of the ruler frame 2 by fastening bolts, and the limit ring 12 is installed on the outside of the limit rod 13. The position of the limit ring 12 is limited by the fixed block 14. The left and right sides of the upper limit block 10 are respectively fixed to the movable cross bar 9 and the connecting rod 11, and then the stability of the upper limit block 10 during the downward movement is increased by the limit rod 13 and the threaded rod 7. The rotation of the threaded rod 7 causes the upper limit block 10 to move downward accordingly, and cooperates with the lower limit block 16 to clamp and limit the workpiece, thereby avoiding the tediousness of multiple operations and further reducing the difficulty of operating the micrometer.

[0025] The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

Claims

1. A clamping mechanism for micrometer detection, comprising an operating handle (1) and an upper limit block (10), characterized in that: The front end of the operating handle (1) is provided with a ruler frame (2), and a micrometer screw (3) is provided inside the ruler frame (2) near the operating handle (1), and a small anvil (4) is distributed in front of the micrometer screw (3). A receiving frame (5) is provided on the left side inside the ruler frame (2), and a limited position opening (6) is provided on the outside of the receiving frame (5), and a threaded rod (7) is connected inside the receiving frame (5), and an auxiliary turning handle (8) is installed on the upper end of the threaded rod (7), and a movable cross bar (9) is connected to the outside of the threaded rod (7), and the movable cross bar (9) An upper limit block (10) is installed at the front end, and a connecting rod (11) is arranged on the right side of the upper limit block (10), and a limit ring (12) is added to the front end of the connecting rod (11), and a limit rod (13) is connected inside the limit ring (12), and a fixing block (14) is added to the upper end of the limit rod (13), and a pneumatic rod (15) is installed at the lower end of the ruler frame (2), and a lower limit block (16) is arranged at the upper end of the pneumatic rod (15), and a rubber anti-slip pad (17) is added above the lower limit block (16).

2. A clamping mechanism for micrometer detection according to claim 1, characterized in that: The outer side of the micrometer screw (3) is flush with the outer side of the small anvil (4), and the small anvil (4) is threadedly connected to the ruler frame (2).

3. The clamping mechanism for micrometer detection according to claim 1, characterized in that: The outer side of the threaded rod (7) is flush with the inner side of the receiving frame (5), and the threaded rod (7) is rotatably connected to the receiving frame (5) via an auxiliary turning handle (8).

4. The clamping mechanism for micrometer detection according to claim 1, characterized in that: The movable cross bar (9) is embeddedly connected to the receiving frame (5), and the movable cross bar (9) is slidably connected to the receiving frame (5) via a threaded rod (7).

5. The clamping mechanism for micrometer detection according to claim 1, characterized in that: The inner dimensions of the limiting ring (12) match the outer dimensions of the limiting rod (13), and the connecting rod (11) is slidably connected to the limiting rod (13) via the limiting ring (12).

6. The clamping mechanism for micrometer detection according to claim 1, characterized in that: The fixing block (14) and the limiting rod (13) are distributed vertically, and the fixing block (14) and the limiting rod (13) are threadedly connected.

7. The clamping mechanism for micrometer detection according to claim 1, characterized in that: The number of the pneumatic rods (15) is two, and the two pneumatic rods (15) are symmetrically arranged on both sides of the lower end of the lower limit block (16) along the front center axis of the lower limit block (16).

8. The clamping mechanism for micrometer detection according to claim 1, characterized in that: The outer side of the lower limit block (16) is flush with the outer side of the rubber anti-skid pad (17), and the lower limit block (16) is fixedly connected to the rubber anti-skid pad (17).

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