CN210147869U - Clamping device is used in micrometer maintenance - Google Patents

Abstract

The utility model discloses a clamping device for micrometer maintenance, including fixed mounting seat, be provided with chi pole fixture and chi frame fixture on the fixed mounting seat respectively, chi pole fixture includes the bracing piece, and the regulating plate is connected to the bracing piece upper end, is provided with the connecting rod on the regulating plate, and the centre gripping buckle is installed to the connecting rod upper end, and centre gripping buckle opening part both ends extend upwards respectively and form the mounting plate, connect through first fastening bolt subassembly between two mounting plates; the ruler frame clamping mechanism comprises a fixed base, a positioning groove with an upward opening and a circular arc-shaped sunken structure is arranged in the middle of the fixed base, a clamping groove is formed in the positioning groove, the fixed base is provided with a first connecting seat and a second connecting seat on two side faces of the opening of the positioning groove respectively, one end of a pressing piece is installed on the first connecting seat through a hinge, the other end of the pressing piece is connected with a second fastening bolt assembly, the second fastening bolt assembly is inserted into the second connecting seat vertically, and a third fastening bolt assembly is connected into the positioning hole through threads.

Description

Clamping device is used in micrometer maintenance

Technical Field

The utility model relates to a measuring equipment field specifically is a clamping device is used in micrometer maintenance.

Background

Micrometer is also called as micrometer screw, micrometer screw and micrometer, and is a more precise length measuring tool than vernier caliper, and its length can be accurately measured to 0.01mm, and its measuring range is several centimeters. A part of the screw is processed into a thread with the thread pitch of 0.5mm, when the screw rotates in a threaded sleeve of a fixed sleeve, the screw advances or retreats, a movable sleeve and a screw rod are connected into a whole, the periphery of the movable sleeve and the screw rod are equally divided into 50 grids, the whole circle number of the rotation of the screw rod is measured by the scribed lines on the fixed sleeve at intervals of 0.5mm, the part less than one circle is measured by the scribed lines on the periphery of the movable sleeve, and finally the measurement result needs to be estimated and read by a decimal number. Before use, the zero point is checked, namely the fine adjustment knob D is slowly rotated to enable the measuring rod to be contacted with the measuring anvil until the ratchet wheel makes a sound, and at the moment, a zero marking line on the movable sleeve is aligned with a long transverse line of a reference line on the fixed sleeve, otherwise, zero error exists; when in measurement, the left hand holds the ruler frame, the right hand rotates the coarse adjustment knob to enable the distance between the measuring rod and the measuring anvil to be slightly larger than the measured object, the measured object is placed, the protection knob is rotated to clamp the measured object until the ratchet wheel makes a sound, and the fixing knob B is shifted to enable the measuring rod to be fixed and then read.

At present micrometer lacks fine clamping device when the maintenance, is handheld to detect usually, during the maintenance check-up, handheld easy rocking detects the precision low, because micrometer's whole is special-shaped structure, traditional clamping device can not fix well.

Disclosure of Invention

An object of the utility model is to provide a clamping device is used in micrometer maintenance to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a clamping device for maintaining a micrometer comprises a fixed mounting seat, wherein a micrometer rod clamping mechanism and a micrometer frame clamping mechanism are respectively arranged on the fixed mounting seat, the micrometer rod clamping mechanism comprises a supporting rod vertically fixed on the fixed mounting seat, the upper end of the supporting rod is connected with an adjusting plate, the adjusting plate is parallel to the fixed mounting seat, a connecting rod is vertically arranged on the adjusting plate, a clamping buckle is arranged at the upper end of the connecting rod, the clamping buckle is an annular structure with an opening at the upper end, two ends of the opening of the clamping buckle respectively extend upwards to form fastening pieces, and the two fastening pieces are connected through a first fastening bolt assembly;

the ruler frame clamping mechanism comprises a fixed base installed on a fixed installation seat, a positioning groove with an upward opening and a circular arc-shaped invagination structure is arranged in the middle of the fixed base, an invagination clamping groove is formed in the positioning groove, the fixed base is provided with a first connecting seat and a second connecting seat on two side faces of the opening of the positioning groove respectively, a pressing piece stretches across in the positioning groove, one end of the pressing piece is installed on the first connecting seat through a hinge, the other end of the pressing piece is connected with a second fastening bolt component, the second fastening bolt component is inserted into the second connecting seat vertically, positioning holes communicated with the clamping groove are formed in the side walls of two ends of the positioning groove respectively, and a third fastening bolt.

Preferably, the two sides of the interior of the clamping buckle are symmetrically provided with jacking pieces with arc structures opposite in opening, and the jacking pieces are connected with the inner wall of the clamping buckle through compression springs.

Preferably, the height of the tape frame holding mechanism is lower than the height of the tape bar holding mechanism.

Preferably, the second connecting seat is provided with a threaded hole matched with the second fastening bolt component.

Preferably, the opening direction of the side surface of the positioning groove is vertical to the opening direction of the clamping buckle.

Preferably, the middle part of the pressing part is of an arched arc structure.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses a set up chi pole fixture and chi frame fixture, fix respectively each chi pole of the chi frame of micrometer, especially fix a position the circular arc bottom surface of chi frame through the constant head tank of convex invagination structure, draw-in groove in the rethread constant head tank carries out the joint to the chi frame spacing, fix the chi rest base portion through compressing tightly, recycle fastening bolt and carry out the top tightly to the chi frame side to fix each main stress point of micrometer, stability is strong, convenient maintenance.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a schematic structural diagram of the ruler rod clamping mechanism of the present invention;

fig. 3 is a schematic view of the specific structure of the fixing base of the present invention.

In the figure: 1. fixing the mounting seat; 2. a scale bar clamping mechanism; 3. a ruler frame clamping mechanism; 4. a support bar; 5. an adjusting plate; 6. a connecting rod; 7. clamping a buckle; 8. a jacking sheet; 9. a compression spring; 10. a fastening tab; 11. a first fastening bolt assembly; 12. a fixed base; 13. positioning a groove; 14. a card slot; 15. a first connecting seat; 16. a second connecting seat; 17. a compression member; 18. a second fastening bolt assembly; 19. positioning holes; 20. and a third fastening bolt assembly.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Referring to fig. 1-3, the present invention provides a technical solution: a clamping device for maintaining a micrometer comprises a fixed mounting seat 1, wherein a micrometer rod clamping mechanism 2 and a micrometer frame clamping mechanism 3 are respectively arranged on the fixed mounting seat 1, the micrometer rod clamping mechanism 2 comprises a supporting rod 4 vertically fixed on the fixed mounting seat 1, the upper end of the supporting rod 4 is connected with an adjusting plate 5, the adjusting plate 5 is parallel to the fixed mounting seat 1, a connecting rod 6 is vertically arranged on the adjusting plate 5, a clamping buckle 7 is arranged at the upper end of the connecting rod 6, the clamping buckle 9 is of an annular structure with an opening at the upper end, two ends of the opening of the clamping buckle respectively extend upwards to form fastening pieces 10, and the two fastening pieces 10 are connected through a first fastening bolt assembly 11;

the ruler frame clamping mechanism 3 comprises a fixed base 12 installed on a fixed installation seat 1, a positioning groove 13 with an upward opening and a circular arc-shaped sunken structure is arranged in the middle of the fixed base 12, a sunken clamping groove 14 is formed in the positioning groove 13 of the positioning groove 13, the fixed base 12 is provided with a first connecting seat 15 and a second connecting seat 16 on two side faces of the opening of the positioning groove 13 respectively, a pressing piece 17 stretches across the positioning groove 13, one end of the pressing piece 17 is installed on the first connecting seat 15 through a hinge, the other end of the pressing piece is connected with a second fastening bolt component 18, the second fastening bolt component 18 is inserted into the second connecting seat 16 vertically, positioning holes 19 communicated with the clamping groove 14 are formed in the side walls of two ends of the positioning groove 13 respectively, and a third fastening bolt component 20 is.

Preferably, the clamping buckle 7 is internally provided with tightening pieces 8 with arc structures with opposite openings symmetrically at two sides, and the tightening pieces 8 are connected with the inner wall of the clamping buckle 7 through compression springs 9.

Preferably, the height of the blade holder means 3 is lower than the height of the blade holder means 2.

Preferably, second connecting socket 16 is provided with a threaded hole adapted to second fastening bolt assembly 18.

Preferably, the opening direction of the side surface of the positioning groove 13 is perpendicular to the opening direction of the clamping buckle 7.

Preferably, the middle part of the pressing piece 17 is in a cambered circular arc structure.

The working principle is as follows: during the use, install fixed mounting seat 1 on the maintenance work platform, place the chi frame of micrometer on unable adjustment base 12's constant head tank 13 earlier, place the fixed sleeve of chi pole in centre gripping buckle 7 simultaneously, tentatively fix a position. Then adjusting the position of the ruler frame to enable the ruler frame to be clamped in the clamping groove 14 in the positioning groove 13, enabling the ruler rod to be in a horizontal state, enabling the pressing piece 17 to cross over the positioning groove 13 and penetrate through the hollow part of the ruler frame, and then vertically inserting the second fastening bolt assembly 18 into the second connecting seat 16 to be screwed down, so that the bottom of the ruler frame is pressed; then the third fastening bolt assembly 20 is screwed down to tightly push the ruler frame against the inner wall of the clamping groove 14, and the ruler frame is fixed. Then the first fastening bolt assembly 11 is screwed down to clamp the fixed sleeve of the ruler rod, the jacking piece 8 is contacted with the fixed sleeve to compress the compression spring 9, and the fixed sleeve is further clamped. The process fixes all main stress points of the micrometer, so that the stability is high and the maintenance is convenient.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. A clamping device for maintaining a micrometer is characterized by comprising a fixed mounting seat (1), wherein a micrometer rod clamping mechanism (2) and a micrometer frame clamping mechanism (3) are respectively arranged on the fixed mounting seat (1), the micrometer rod clamping mechanism (2) comprises a supporting rod (4) vertically fixed on the fixed mounting seat (1), the upper end of the supporting rod (4) is connected with an adjusting plate (5), the adjusting plate (5) is parallel to the fixed mounting seat (1), a connecting rod (6) is vertically arranged on the adjusting plate (5), a clamping buckle (7) is arranged at the upper end of the connecting rod (6), the clamping buckle (7) is of an annular structure with an opening at the upper end, two ends of the opening of the clamping buckle respectively extend upwards to form fastening pieces (10), and the two fastening pieces (10) are connected through a first fastening bolt assembly (11);

the ruler frame clamping mechanism (3) comprises a fixed base (12) installed on a fixed installation seat (1), a positioning groove (13) with an upward opening and a circular arc-shaped sunken structure is formed in the middle of the fixed base (12), a sunken clamping groove (14) is formed in the positioning groove (13) of the positioning groove (13), a first connecting seat (15) and a second connecting seat (16) are respectively arranged on two side faces of the opening of the positioning groove (13) of the fixed base (12), a pressing piece (17) stretches across the positioning groove (13), one end of the pressing piece (17) is installed on the first connecting seat (15) through a hinge, the other end of the pressing piece is connected with a second fastening bolt assembly (18), the second fastening bolt assembly (18) is vertically inserted into the second connecting seat (16), positioning holes (19) communicated with the clamping groove (14) are respectively formed above the side walls of two ends of the positioning groove (13), and a third fastening bolt assembly (20) is connected into.

2. The clamping device for micrometer maintenance according to claim 1, wherein: the two sides in the clamping buckle (7) are symmetrically provided with jacking sheets (8) with arc structures with opposite openings, and the jacking sheets (8) are connected with the inner wall of the clamping buckle (7) through compression springs (9).

3. The clamping device for micrometer maintenance according to claim 1, wherein: the height of the ruler frame clamping mechanism (3) is lower than that of the ruler rod clamping mechanism (2).

4. The clamping device for micrometer maintenance according to claim 1, wherein: the second connecting seat (16) is provided with a threaded hole matched with the second fastening bolt component (18).

5. The clamping device for micrometer maintenance according to claim 1, wherein: the opening direction of the side surface of the positioning groove (13) is vertical to the opening direction of the clamping buckle (7).

6. The clamping device for micrometer maintenance according to claim 1, wherein: the middle part of the pressing piece (17) is of an arched arc structure.

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