Instrument detection auxiliary clamp

Abstract

The utility model belongs to the technical field of instrument detection, and particularly relates to an auxiliary fixture for instrument detection, which comprises a fixed base, and clamping bases are mounted on the left side and the right side above the fixed base in a sliding manner; supporting plates are installed on the left side and the right side of the upper portion of the fixed base, transverse push rods are installed on the sides, away from each other, of the supporting plates on the two sides, and the telescopic ends of the transverse push rods penetrate through the supporting plates and are fixedly connected with the clamping base. The sides, close to each other, of the clamping bases on the two sides are each provided with a guide sliding groove. An extrusion groove is formed in the upper side of the clamping base, and the lower end of the extrusion groove communicates with the guide sliding groove; according to the instrument clamping device, the clamping columns capable of sliding along the guide sliding grooves are used for adapting to instrument size changes, so that the instrument clamping device can adapt to instruments in irregular shapes, the instruments in different sizes and shapes are clamped, and therefore the instrument clamping device has better universality compared with a clamping tool in a corresponding shape.

Description

Technical Field

[0001] The utility model relates to the technical field of instrument detection, in particular to an instrument detection auxiliary fixture. Background Art

[0002] Instruments measure physical quantities such as temperature, pressure, flow, and liquid level, and display these results numerically or graphically, helping operators understand the current production or operational status. Instruments not only monitor physical quantities but also control them to maintain process stability. To ensure the accuracy and safety of instrument use, they must be tested for both safety and accuracy.

[0003] According to the fixing method, the inspection of instruments includes fixed inspection and non-fixed inspection; among them, fixed inspection refers to clamping and fixing the instrument, and then inspecting the fixed instrument; the existing auxiliary clamp is similar to a bench vise, which clamps the instrument through a V-shaped jaw. This method can only clamp one or more instruments of the same size at a time, that is, it can only clamp one type of instrument at a time, and when inspecting the safety of instruments, random inspection is usually adopted. That is, when conducting inspections, it is necessary to check instruments of multiple sizes and types, and the existing auxiliary clamps can only clamp one size and type of instrument at a time, which causes inspectors to spend more time on clamping the instruments, which is not conducive to improving the efficiency of instrument inspection; in addition, the existing instruments are not only round, but also have irregular shapes. When clamping such instruments, clamping tools of corresponding shapes are required, which also makes the clamping of irregular-shaped instruments more difficult.

[0004] Therefore, we propose a universal instrument detection auxiliary fixture for clamping and fixing different types of instruments. Utility Model Content

[0005] The purpose of the utility model is to provide an instrument detection auxiliary fixture to solve the problem of poor versatility of the existing detection auxiliary fixtures mentioned in the above background technology.

[0006] To achieve the above-mentioned object, the utility model provides the following technical solution: an instrument detection auxiliary fixture, comprising a fixed base, wherein a clamping base is slidably mounted on the left and right sides above the fixed base; a support plate is mounted on the left and right sides above the fixed base, and a transverse push rod is mounted on the side of the support plates away from each other on both sides, wherein the telescopic end of the transverse push rod passes through the support plate and is fixedly connected to the clamping base;

[0007] The clamping bases on both sides are provided with guide grooves on the sides close to each other; an extrusion groove is provided on the upper side of the clamping base, and the lower end of the extrusion groove is connected to the guide groove; a clamping column is movably inserted into the inner side of the guide groove, and one end of the clamping column extends into the inner side of the extrusion groove;

[0008] A guide support column is installed above the clamping base, an extrusion support plate is installed on the upper side of the guide support column, and a longitudinal push rod is installed on the upper side of the extrusion support plate; a T-shaped extrusion plate is slidably connected to the outer side of the guide support column, and the lower end of the T-shaped extrusion plate corresponds to the extrusion groove, and the telescopic end of the longitudinal push rod passes through the extrusion support plate and is connected to the upper side of the T-shaped extrusion plate.

[0009] Preferably, a cylindrical groove is formed on the inner wall of the guide slot, a return spring is installed on the inner side of the cylindrical groove, and the other end of the return spring extends out of the cylindrical groove and is connected to the clamping column.

[0010] Preferably, the clamping column includes an upper strip and a lower strip arranged up and down, and the width of the upper strip is greater than the width of the lower strip; the upper strip is provided with an anti-slip plate on the upper side of one end extending into the extrusion groove.

[0011] Preferably, one end of the clamping column extending out of the extrusion groove is movably connected to an extrusion wheel, and the diameter of the extrusion wheel is greater than the width of the lower strip.

[0012] Preferably, an anti-slip groove is provided on the lower wall of the inner cavity of the guide slide groove, and the anti-slip groove is located on the lower side of the extrusion groove; an extrusion hole is provided on the upper side of one end of the clamping column extending into the extrusion groove, and an anti-slip column is movably installed on the inner side of the extrusion hole, and the lower end of the anti-slip column is provided with an anti-slip plate corresponding to the anti-slip groove; the lower end of the anti-slip column is also provided with a thrust spring connected to the inner wall of the extrusion hole.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] 1) This device adapts to changes in instrument size through clamping columns that can slide along guide slots. When several clamping columns are in contact with the instrument, the clamping columns are pressed down by a T-shaped extrusion plate to fix the clamping columns. At this time, the fixed clamping columns can also fix the instrument. Because the clamping columns can extend to different lengths, this device can adapt to irregular-shaped instruments and clamp instruments of different sizes and shapes, making this device more versatile than clamping tools of corresponding shapes.

[0015] 2) Since the clamping columns in this device can slide along the guide groove, several clamping columns can be extended to different lengths, and then adjacent clamping columns on the clamping base can be used to fix a meter together, so that meters of different sizes can be clamped and fixed in one clamping; meters of various sizes and shapes can be clamped in one clamping, which can reduce the number of clamping times during the instrument testing process, thereby reducing the instrument clamping time and improving clamping efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the cross-sectional structure of the upper pressing component of the utility model;

[0018] Figure 3 This is a schematic diagram of the cross-sectional structure of the clamping base of the utility model;

[0019] Figure 4 This is a schematic cross-sectional view of the local structure of the clamping column of the utility model.

[0020] In the figure: 11 fixed base, 12 support plate, 13 horizontal push rod; 21 longitudinal push rod, 22 guide support column, 23 T-shaped extrusion plate, 24 extrusion support plate; 31 clamping base, 32 cylindrical groove, 33 guide slide groove, 34 anti-slip groove, 35 extrusion groove; 41 clamping column, 42 anti-slip column, 43 thrust spring, 44 anti-slip plate, 45 extrusion wheel; 50 return spring. DETAILED DESCRIPTION

[0021] 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.

[0022] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0023] Example:

[0024] See also Figure 1-4The utility model provides a technical solution: an instrument detection auxiliary fixture, including a fixing component, a clamping component and an upper pressing component. The fixing component includes a fixed base 11, a support plate 12 and a horizontal push rod 13; a mounting hole is provided on the fixed base 11, and the device can be fixed to the workbench of the detection equipment by passing a bolt through the mounting hole. Linear guide rails are installed on the front and rear sides above the fixed base 11, and the clamping base 31 is connected to the linear guide rail through a slider. There are two clamping bases 31, and the two clamping bases 31 are symmetrically distributed on the left and right sides above the fixed base 11; support plates 12 are installed on the left and right sides above the fixed base 11, and reinforcing ribs are provided on the outer side of the support plate 12. The reinforcing ribs are used to strengthen the connection between the support plate 12 and the fixed base 11. A transverse push rod 13 is installed on the side of the support plates 12 on both sides that are away from each other. The telescopic end of the transverse push rod 13 passes through the support plate 12 and is fixedly connected to the clamping base 31. The transverse push rods 13 on both sides are used to drive the clamping bases 31 on both sides to move closer to or away from each other; when the clamping bases 31 on both sides are close to each other, the instruments between the clamping bases 31 on both sides can be clamped.

[0025] The clamping components include a clamping base 31, a clamping column 41, an anti-slip column 42, a thrust spring 43, an anti-slip plate 44, and an extrusion wheel 45. The clamping bases 31 on both sides are each provided with a guide slot 33 on the side closest to each other. Each clamping base 31 is provided with at least four guide slots 33, and the multiple guide slots 33 are parallel to each other. One end of the clamping column 41 is movably inserted into the inner side of the guide slot 33. When squeezing the instrument, the clamping column 41 will slide inwardly toward the guide slot 33, allowing the multiple clamping columns 41 to come into contact with the instrument. When squeezing an ordinary circular instrument, the four clamping columns 41 are used to clamp the outer side of the instrument to fix it. The four clamping columns 41 are symmetrically distributed, with two clamping columns 41 used on each side of the clamping base 31. When clamping an irregularly shaped instrument, the clamping posts 41 on either side of the instrument are brought close together and in contact with the instrument to secure it. Depending on the size of the instrument, an even number of four or more clamping posts 41 may be used. An extrusion groove 35 is defined on the upper side of the clamping base 31. The lower end of the extrusion groove 35 is aligned with the guide slot 33. The T-shaped extrusion plate 23 on the upper pressing component extends into the extrusion groove 35, squeezing the end of the clamping post 41 that extends into the extrusion groove 35, thereby securing the clamping post 41 and facilitating the clamping of the instrument by the clamping post 41. The inner wall of the guide slot 33 is provided with a cylindrical slot 32, and a return spring 50 is installed inside the cylindrical slot 32. The other end of the return spring 50 extends out of the cylindrical slot 32 and is connected to the clamping column 41. The elastic force of the return spring 50 pushes the clamping column 41 to reset, so that the clamping column 41 is always in the initial position before the device clamps the instrument, thereby avoiding the need to manually adjust the clamping column 41, thus saving manpower. During clamping, the elastic force of the return spring 50 also pushes the clamping column 41 to fit the instrument, thereby facilitating the clamping of the instrument. The cylindrical slot 32 is used to place the return spring 50. When the return spring 50 is fully retracted into the cylindrical slot 32, the clamping column 41 fits against the outer wall of the cylindrical slot 32. At this time, the pressure of the cylindrical slot 32 on the return spring 50 will no longer increase, thereby preventing the return spring 50 from being subjected to excessive pressure.

[0026] The upper pressure component includes a longitudinal push rod 21, a guide support column 22, a T-shaped extrusion plate 23, and an extrusion support plate 24. There are four guide support columns 22, which are respectively installed at the four corners above the clamping base 31; the extrusion support plate 24 is installed on the upper side of the guide support column 22, and the upper ends of the four guide support columns 22 are respectively connected to the four corners on the lower side of the extrusion support plate 24. The longitudinal push rod 21 is installed on the upper side of the extrusion support plate 24, and the telescopic end of the longitudinal push rod 21 passes through the extrusion support plate 24 and is connected to the upper side of the T-shaped extrusion plate 23. The guide support column 22 passes through the T-shaped extrusion plate 23, and the outer side of the guide support column 22 is connected to the T-shaped extrusion plate 23 through a slider. The lower end of the T-shaped extrusion plate 23 corresponds to the extrusion groove 35. When the T-shaped extrusion plate 23 moves down to the lower limit, the lower end of the T-shaped extrusion plate 23 will extend into the extrusion groove 35 to squeeze the clamping column 41, thereby fixing the clamping column 41.

[0027] The clamping column 41 is also arranged in a T shape, which includes an upper strip and a lower strip arranged up and down, and the width of the upper strip is greater than the width of the lower strip; the guide slot 33 corresponds to the clamping column 41, so that the guide slot 33 includes an upper slot corresponding to the upper strip and a lower slot corresponding to the lower strip, and when the extrusion slot 35 is opened, the extrusion slot 35 extends downward to the upper slot and does not enter the lower slot; the upper strip is provided with an anti-slip plate 44 on the upper side of one end extending into the extrusion slot 35, and the width of the anti-slip plate 44 is greater than the width of the upper strip, so that the anti-slip plate 44 cannot slide out through the upper slot, thereby preventing the clamping column 41 from falling off from the guide slot 33.

[0028] The end of the clamping column 41 that extends out of the extrusion slot 35 is flexibly connected to an extrusion wheel 45. This extrusion wheel 45 clamps the instrument to prevent scratches caused by sharp corners. This protection is essential for non-destructive testing. Due to the diverse shapes of irregular instruments, the diameter of the extrusion wheel 45 is set larger than the width of the lower strip to facilitate contact between the clamping column 41 and the instrument. This ensures that the extrusion wheel 45 makes contact first when the clamping column 41 contacts the instrument.

[0029] In order to facilitate the sliding of the clamping column 41, the inner wall of the guide groove 33 is polished; therefore, it is also necessary to provide an anti-slip surface on the inner side of the guide groove 33 to prevent the clamping column 41 from sliding; an anti-slip groove 34 is provided on the lower wall of the inner cavity of the guide groove 33, and an anti-slip surface is provided at the bottom of the anti-slip groove 34, and the anti-slip groove 34 is concave. Under normal circumstances, the clamping column 41 does not contact the inner wall of the anti-slip groove 34. The upper side of the clamping column 41 extending into one end of the extrusion groove 35 is provided with an extrusion hole, and an anti-skid column 42 is movably installed on the inner side of the extrusion hole. The anti-skid column 42 can slide up and down, and the lower end of the anti-skid column 42 is also provided with a thrust spring 43 connected to the inner wall of the extrusion hole. Under normal circumstances, the thrust spring 43 pushes the anti-skid column 42 to the upper limit, and the upper end of the anti-skid column 42 extends out of the extrusion hole; when the T-shaped extrusion plate 23 is at the lower limit, the T-shaped extrusion plate 23 squeezes the anti-skid column 42 to move downward, and the lower end of the anti-skid column 42 extends out of the extrusion hole; the lower end of the anti-skid column 42 is provided with an anti-skid plate corresponding to the anti-skid groove 34. After the lower end of the anti-skid column 42 extends out of the extrusion hole, the anti-skid column 42 pushes the anti-skid plate to contact the anti-skid surface of the anti-skid groove 34, thereby increasing the friction coefficient through the anti-skid plate and the anti-skid groove 34, thereby preventing the clamping column 41 from sliding. Since the anti-skid column 42 needs to be pushed by the T-shaped extrusion plate 23 , the anti-skid groove 34 only needs to be located below the extrusion groove 35 .

[0030] Working principle: Place the instrument to be tested between the two clamping bases 31, and then start the transverse push rod 13. The transverse push rod 13 pushes the two clamping bases 31 closer to each other. The clamping bases 31 on both sides drive the corresponding clamping columns 41 closer to each other, and make the extrusion wheel 45 on the clamping column 41 contact with the instrument. Then the clamping column 41 is subjected to the reaction force transmitted by the extrusion wheel 45. The reaction force pushes the clamping column 41 to move to the side close to the reset spring 50 and compresses the reset spring 50. Finally, the extrusion wheels 45 on both sides of the instrument are in contact with the instrument; then start the longitudinal push rod 21, and the longitudinal push rod 21 pushes the T-shaped extrusion plate 23 downward. The T-shaped extrusion plate 23 moves downward to squeeze and fix the clamping column 41, and the instrument is fixed by the clamping column 41.

[0031] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention; therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is limited by the appended claims rather than the above description. Therefore, it is intended that all changes that fall within the meaning and scope of the equivalent elements of the claims are included in the present invention, and any figure marks in the claims should not be regarded as limiting the claims involved.

[0032] 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. An instrument detection auxiliary fixture, comprising a fixed base (11), characterized in that: A clamping base (31) is slidably mounted on both the left and right sides above the fixed base (11); a support plate (12) is mounted on both the left and right sides above the fixed base (11); a transverse push rod (13) is mounted on the side of the support plates (12) away from each other, and a telescopic end of the transverse push rod (13) passes through the support plate (12) and is fixedly connected to the clamping base (31); The clamping bases (31) on both sides are provided with guide slots (33) on the sides close to each other; an extrusion slot (35) is provided on the upper side of the clamping base (31), and the lower end of the extrusion slot (35) is communicated with the guide slot (33); a clamping column (41) is movably inserted into the inner side of the guide slot (33), and one end of the clamping column (41) extends into the inner side of the extrusion slot (35); A guide support column (22) is installed above the clamping base (31), an extrusion support plate (24) is installed on the upper side of the guide support column (22), and a longitudinal push rod (21) is installed on the upper side of the extrusion support plate (24); a T-shaped extrusion plate (23) is slidably connected to the outer side of the guide support column (22), and the lower end of the T-shaped extrusion plate (23) corresponds to the extrusion groove (35), and the telescopic end of the longitudinal push rod (21) passes through the extrusion support plate (24) and is connected to the upper side of the T-shaped extrusion plate (23).

2. The instrument detection auxiliary fixture according to claim 1, characterized in that: The inner wall of the guide slot (33) is provided with a cylindrical slot (32), the inner side of which is provided with a return spring (50), and the other end of the return spring (50) extends out of the cylindrical slot (32) and is connected to the clamping column (41).

3. The instrument detection auxiliary fixture according to claim 1, characterized in that: The clamping column (41) comprises an upper strip plate and a lower strip plate arranged above and below, and the width of the upper strip plate is greater than the width of the lower strip plate; an anti-slip plate (44) is provided on the upper side of one end of the upper strip plate extending into the extrusion groove (35).

4. The instrument detection auxiliary fixture according to claim 3, characterized in that: One end of the clamping column (41) extending out of the extrusion groove (35) is movably connected to an extrusion wheel (45), and the diameter of the extrusion wheel (45) is greater than the width of the lower strip.

5. The instrument detection auxiliary fixture according to claim 1, characterized in that: The lower wall of the inner cavity of the guide slide groove (33) is provided with an anti-slip groove (34), and the anti-slip groove (34) is located on the lower side of the extrusion groove (35); the upper side of the clamping column (41) extending into the extrusion groove (35) is provided with an extrusion hole, and an anti-slip column (42) is movably installed inside the extrusion hole, and the lower end of the anti-slip column (42) is provided with an anti-slip plate corresponding to the anti-slip groove (34); the lower end of the anti-slip column (42) is also provided with a thrust spring (43) connected to the inner wall of the extrusion hole.

Images