CN202452907U

CN202452907U - Internal diameter micrometer

Info

Publication number: CN202452907U
Application number: CN2011203631835U
Authority: CN
Inventors: 孙生强
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-08-08
Filing date: 2011-09-16
Publication date: 2012-09-26
Anticipated expiration: 2021-09-16
Also published as: CN102927872B; GB2507915A; AU2012292861B2; CN102927872A; GB2507915B; AU2012292861A1; WO2013020373A1; GB201403034D0

Abstract

The present utility model discloses a novel internal diameter measuring tool, especially an internal diameter micrometer which is realized through precise transmission and fitting of various parts of a fixing bend measuring rod, a mobile bend measuring rod, a transmission shaft, a supporting sleeve, a microdrum and an adjusting turn button. The internal diameter micrometer provided can be used for effectively solving limitations and shortages of the prior internal diameter measuring tool during the measuring process, accurate and convenient requirements of internal diameter measuring can be satisfied, and a new measuring tool and a measuring method are provided for internal diameter processing technology of the machining operation filed.

Description

Micrometer inside caliper

Technical field

The utility model relates to a kind of micrometer inside caliper, especially easily and fast the micrometer inside caliper of measuring workpieces internal diameter size.

Background technology

At present; Cooperate the internal diameter scale to realize for the main outer footpath of the precision measurement of workpiece diameter milscale; Bikini micrometer inside caliper and straight bar type micrometer inside caliper are also arranged; But in the measuring process or inconvenient operation, or receive the restriction of aperture diameter size, certain limitation and operational deficiencies are all arranged on measuring method and scope.Also do not have a kind of as general convenient quick, easy, accurate survey instrument of outside micrometer measurement and measuring method at the inner diameter measurement process aspect; Often can not take into account simultaneously aspect convenient and the accuracy measuring, use micrometer inside caliper (ZL200920174644.7) and more how with digital display micrometer inside caliper (201110071791.3; 201120080275.2) also there are certain influence in three patents to measuring accuracy in the kind of drive and modular construction design.

Summary of the invention

In order to overcome the deficiency that above micrometer inside caliper exists; The utility model provides a kind of brand-new micrometer inside caliper; On parts drive mechanism and measuring principle, produce key breakthrough; Through effective minimizing with change its gear train inner driving-chain and the kind of drive, effectively solved the deficiency of conventional inner diameter measurement inconvenience, reach convenient, accurately measure the requirement of internal diameter size precision.

The utility model solves the technical scheme that its technical matters adopted: this micrometer inside caliper comprises fixedly elbow measuring staff, mobile elbow measuring staff, transmission shaft, stop sleeve, microdrum and adjusting knob, blade and is exclusively used in the digital display device of digital display micrometer inside caliper; It is characterized in that: fixedly elbow gauge head (13) and mobile elbow (14) are installed in respectively fixedly on the elbow measuring staff (12) and mobile elbow measuring staff (15); Fixedly elbow measuring staff (12) is connected with blade (9); Moving elbow measuring staff (15) is connected with transmission shaft (28) with stop sleeve (2); Transmission shaft (28) is connected with adjusting knob (7) with microdrum (4), and stop sleeve (2) is connected with microdrum (4) with blade (9), and the blade (9) that is exclusively used in the digital display micrometer inside caliper is provided with digital display device (52).

This milscale fixedly elbow measuring staff (12) be provided with fixedly the elbow measuring staff cooperate with blade plane (37) and fixedly the elbow measuring staff cooperate periphery (38) and register pin (36) with blade; Moving elbow measuring staff (15) is provided with mobile elbow measuring staff scale (1), moves elbow measuring staff internal thread (39), chock (16), the straight wall of arc groove (33) and arc groove sphere (35); Transmission shaft (28) is provided with screw rod (40), ratchet rod mounting hole (41), oil storage tank (26) and ball grooves (27); Stop sleeve (2) is provided with microdrum and cooperates plane (17), microdrum to cooperate periphery (18), microdrum to cooperate periphery (22), bulb dog screw screw (42), stop sleeve to cooperate periphery (43), stop sleeve groove (44) with blade with transmission shaft with stop sleeve with stop sleeve; Microdrum (4) is provided with calibration adjustments hole (5), annular knurl (6), microdrum scale (47), microdrum positioning screw hole (48); Adjusting knob (7) is provided with annular knurl (6), handle ratchet wheel (31), adjusting knob positioning screw hole (49) and adjusting knob and round head screw matching thread (50); This micrometer inside caliper comprises special-purpose digital display micrometer inside caliper that has digital display device (52) and the verification frame (51) that is used for checking dimension; The manufacturing materials and the technology thereof of the fixedly elbow gauge head (13) of this micrometer inside caliper and the circular arc portion of mobile elbow gauge head (14) comprise tungsten carbide button.

The beneficial effect of the utility model is: reduced the inner driving-chain of micrometer inside caliper, effectively eliminated the error that driving-chain too much produces, reached the requirement that improves the micrometer inside caliper measuring accuracy.This micrometer inside caliper can directly be measured the size of workpiece diameter, and convenient measurement, quick, accurate.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is further specified.

Fig. 1 is the front view of micrometer inside caliper

Fig. 2 is the micrometer inside caliper cut-open view

Fig. 3 is the cut-open view of micrometer inside caliper adjusting knob A-A

Fig. 4 is the cut-open view of micrometer inside caliper B-B

Fig. 5 is the cut-open view of micrometer inside caliper C-C

Fig. 6 is fixing elbow measuring staff synoptic diagram

Fig. 7 moves elbow measuring staff synoptic diagram

Fig. 8 is the transmission shaft synoptic diagram

Fig. 9 is the stop sleeve synoptic diagram

Figure 10 is the round head screw synoptic diagram

Figure 11 is the microdrum front view

Figure 12 is the microdrum cut-open view

Figure 13 is the adjusting knob synoptic diagram

Figure 14 is the verification frame

Figure 15 is the digital display micrometer inside caliper that has digital display device

Among Fig. 1-Figure 15: 1. move elbow measuring staff scale, 2. stop sleeve, 3. microdrum scale value datum line, 4. microdrum, 5. calibration adjustments hole, 6. annular knurl; 7. adjusting knob, 8. round head screw, 9. blade, 10. thermal insulation board, 11. thermal insulation board gib screws, 12. fixing elbow measuring staffs; 13. fixing elbow gauge head, 14. move the elbow gauge head, and 15. move the elbow measuring staff, 16, and chock, 17. microdrums cooperate the plane with stop sleeve; 18. microdrum cooperates periphery with stop sleeve, 19. springs, and 20. stop sleeve sunk screws, 21. balls, 22. microdrums cooperate periphery with transmission shaft; 23. the adjusting knob sunk screw, 24. springs, 25. balls, 26. oil storage tanks, 27. ball grooves; 28. transmission shaft, 29. springs, 30. ratchets rod, 31. handle ratchet wheels, 32. bulb dog screws; 33. the straight wall of arc groove, 34. bulb dog screw grooves, 35. arc groove spheres, 36. register pins, 37. fixedly the elbow measuring staff cooperate the plane with blade; 38. fixedly the elbow measuring staff cooperates periphery with blade, 39. move elbow measuring staff internal thread, 40. screw rods, 41. ratchets rod mounting hole, 42. bulb dog screw screws; 43. stop sleeve cooperates periphery with blade, 44. stop sleeve grooves, 45. bulb dog screw peripheries, 46. bulb dog screw spheres, 47. microdrum scales; 48. the microdrum positioning screw hole, 49. adjusting knob positioning screw holes, 50. adjusting knobs and round head screw matching thread, 51. verification framves, 52. digital display devices.

Embodiment

In Fig. 1-Figure 15, this micrometer inside caliper main part comprises: fixedly the elbow measuring staff, move elbow measuring staff, transmission shaft, stop sleeve, microdrum and adjusting knob, blade and be exclusively used in the digital display device of digital display micrometer inside caliper; Its interconnect and drive connection following:

Two gauge heads of this micrometer inside caliper are respectively fixedly elbow gauge head (13) and mobile elbow gauge head (14); Be installed in respectively fixedly on the elbow measuring staff (12) and mobile elbow measuring staff (15); Fixedly elbow measuring staff (12) is connected with blade (9); Move elbow measuring staff (15) and be connected with transmission shaft (28) with stop sleeve (2), transmission shaft (28) is connected with adjusting knob (7) with microdrum (4), and stop sleeve (2) is connected with microdrum (4) with blade (9).Blade (9) is being fixed fixedly elbow measuring staff (12) and stop sleeve (2); Stop sleeve (2) is supporting microdrum (4); Microdrum (4) is driving transmission shaft (28) and is rotating; Transmission shaft (28) is driving mobile elbow measuring staff (15) and is moving, and the adjusting knob (7) that transmission shaft (28) is provided with also drives transmission shaft (28) and impels mobile elbow measuring staff (15) to move axially in measuring process.

This micrometer inside caliper characteristic, structure and embodiment are following:

Two gauge heads of this micrometer inside caliper are respectively fixedly elbow gauge head (13) and mobile elbow gauge head (14); When needs measuring workpieces diameter of bore; Before the measurement; Fixedly elbow measuring staff (13) and mobile elbow gauge head (14) are put verification frame (51) inner side d place into earlier; Then with adjusting knob (7) to rotation counterclockwise, make move hear behind elbow gauge head (14) contact verification frame (51) the inner side d place ratchet send reach sound after, with the microdrum scale value datum line (3) on the 0 line scale value aligning stop sleeve (2) of the microdrum scale (47) (seeing Figure 11) on the microdrum (4); When 0 line scale value is not aimed at microdrum scale value datum line (3), regulate through the calibration adjustments hole (5) on the microdrum (4).After finishing, adjusting carries out the secondary verification through microdrum (4) and adjusting knob (7) again; Reach (its structure is seen Fig. 3) behind the sound until what spring (29), ratchet rod (30) and handle ratchet wheel (31) through adjusting knob (7) the inside sent naturally that mechanical drive skids; The last 0 line scale value of microdrum (4) is still aimed at microdrum scale value datum line (3) and is just calculated the verification completion; The initial measurement scale value (like 25mm) that moves elbow measuring staff scale (1) designs in advance is convenient to survey the location visible of reading at blade (9); The line of this start index value and blade have the distance of 0.5mm-1mm at least before verification; So that two gauge heads of this micrometer inside caliper are put in the verification frame (51), the initial measurement scale value of the accurate checking dimension d of the inboard of verification frame (51) and this micrometer inside caliper matches, to guarantee the accurate of checking dimension.

When the actual measurement internal diameter; Adopting microdrum (4) and adjusting knob (7) to cooperate carries out; Microdrum (4) is used for fast moving, is about to gauge head and moves to or shift out surface measurements fast, and adjusting knob (7) then is used for control operation person's measurement spin; Promptly when gauge head contact measurement surface or just must use when soon reaching final measurement size numerical value adjusting knob (7) to come control operation person's measurement dynamics, to avoid exerting oneself excessive and measuring error generation.

Two elbow measuring staffs of this micrometer inside caliper are respectively fixedly elbow measuring staff (12) and mobile elbow measuring staff (15); Fixedly elbow measuring staff (12) be provided with fixedly the elbow measuring staff cooperate with blade plane (37) and fixedly the elbow measuring staff cooperate periphery (38) with blade; As shown in Figure 6; To guarantee the fixedly bearing accuracy of elbow measuring staff (12), also be provided with in its side simultaneously and prevent its register pin that moves (36) (as shown in Figure 5), to guarantee the fixedly bearing accuracy and the intensity of elbow measuring staff (12).Move elbow measuring staff (15) and be provided with demonstration measured workpiece size 0.5mm and the integer-valued mobile elbow measuring staff scale of 1mm (1); When being 30.28mm or 30.58mm like numerical value when measured internal diameter; Promptly move elbow measuring staff scale (1) and go up demonstration 30mm or 30.50mm numerical value, remaining fractional value 0.28mm or 0.08mm align expression through microdrum scale (47) and microdrum scale value datum line (3).Move screw rod (40) precision-fit on elbow measuring staff internal thread (39) and the transmission shaft (28), bear the knob power of inner diameter measurement and transmit and the size Presentation Function.The external diameter of chock (16) is identical with the big footpath of mobile elbow measuring staff internal thread (39), and is the precise transition matching relationship, for processing the protective effect (see figure 7) of being done after the fabrication hole that moves elbow measuring staff internal thread (39).Elbow measuring staff (15) be should move and straight wall of arc groove (33) and arc groove sphere (35) were provided with; Limit it with bulb dog screw periphery (45) on the cooperation bulb dog screw (32) and bulb dog screw sphere (46) and move moving axially and locating of elbow measuring staff (15), moving between elbow measuring staff (15) and the stop sleeve (2) is accurate slip cooperating relationship.

Screw rod (40) that the transmission shaft of this micrometer inside caliper (28) is provided with and mobile elbow measuring staff internal thread (39) precision-fit are born inner diameter measurement transmission and Presentation Function (see figure 2) jointly.Transmission shaft (28) is provided with microdrum and cooperates periphery (22) with transmission shaft, with the cooperate drive connection of assurance transmission shaft (28) with microdrum (4).Spring (29), the ratchet rod (30) of its transmission shaft dynamometry of installation and control in ratchet rod mounting hole (41) (see figure 8); Be used (see figure 3) with the handle ratchet wheel (31) in the adjusting knob (7); Oil storage tank (26) is used for storing lubricating oil, so that the friction between lubricated ratchet rod (30) and the handle ratchet wheel (31).Ball grooves (27) is used with adjusting knob sunk screw (23), spring (24) and ball (25) and limits the axial location of adjusting knob (7) on transmission shaft (28).

It is fixing that the stop sleeve of this micrometer inside caliper (2) (seeing Fig. 9, Fig. 2) cooperates periphery (43) to be connected with blade (9) transition fit through stop sleeve and blade; Microdrum on the stop sleeve (2) cooperates plane (17) and microdrum to cooperate periphery (18) carrying microdrum (4) with stop sleeve with stop sleeve cooperation positioning function, stop sleeve groove (44) are used with spring (19), stop sleeve sunk screw (20) and ball (21) and limit the axial location of microdrum (4) on stop sleeve (2).Bulb dog screw screw (42) is used to install bulb dog screw (32).

Annular knurl (6) on the microdrum of this micrometer inside caliper (4) is used to increase the finger friction when measuring; Microdrum positioning screw hole (48) (seeing Figure 12) is used for mounting spring (19), stop sleeve sunk screw (20) and ball (21), and microdrum (4) has transmission transmission shaft (28) knob power and the function that shows internal diameter size on stop sleeve (2).

The friction force of the finger knob the when adjusting knob of this micrometer inside caliper (7) is provided with annular knurl (6) with the increase measurement; Spring (29) on handle ratchet wheel (31) and the transmission shaft (28), ratchet rod (30) are used the knob power (see figure 3) of regulating and controlling knob (7); When the operator is rotated counterclockwise adjusting knob (7), adjusting knob (7) can drive on transmission shaft (28) and the mobile elbow measuring staff (15) gauge head to measured surface near, when beginning with adjusting knob (7) measuring workpieces; Skidding can take place in handle ratchet wheel (31) and ratchet rod (30) when reaching certain knob power; This shows that this measurement strength has satisfied measurement requirement, can read the measurement numerical value of internal diameter, after numerical value reads completion; The operator rotates adjusting knob (7) to CW; At this moment ratchet rod (30) can eject under the effect of spring (29) and stick handle ratchet wheel (31), and the mobile elbow gauge head (14) that impels adjusting knob (7) to drive on the transmission shaft (28) leaves measured surface, accomplishes whole measuring process.Install adjustment knob sunk screw (23), spring (24) and ball (25) in the adjusting knob positioning screw hole (49) on this adjusting knob (7) are so that the axial location of location adjusting knob (7) on transmission shaft (28).Adjusting knob cooperates with round head screw (8) with round head screw matching thread (50) (seeing Figure 13, Fig. 1), and this micrometer inside caliper is played dustproof and effect attractive in appearance.

The straight wall of arc groove (33) on bulb dog screw periphery (45) on the bulb dog screw (32) of this micrometer inside caliper and bulb dog screw sphere (46) (seeing Figure 10, Fig. 4) and the mobile elbow measuring staff (15) and arc groove sphere (35) be used control mobile elbow measuring staff (15) move axially precision and radial location position, its bulb dog screw groove (34) is the processing technology groove.

The digital display device of this micrometer inside caliper (52) (seeing Figure 15) is exclusively used on the digital display micrometer inside caliper of this micrometer inside caliper, and the digital display technique that the gear train of its digital display device and this micrometer inside caliper takes place is a known technology, repeats no more at this.

The verification frame (51) of this micrometer inside caliper is the accessory kit of this micrometer inside caliper, and the inboard of verification frame (51) is provided with accurate checking dimension d, and used when being mainly used in the initial measuring basis of this micrometer inside caliper of verification, method of calibration belongs to routine techniques.Thermal insulation board (10) on the blade of this micrometer inside caliper (9) is fixing by thermal insulation board gib screw (11), is mainly used in the measurement of precision.

This micrometer inside caliper is compared with traditional inner diameter measurement instrument and method; Design ingenious, simple, reasonable, accurate; The internal diameter size of measuring workpieces for saving operator's Measuring Time, improves the internal diameter machining precision and offers convenience accurately and effectively; Be the novel product in inner diameter measurement field, positive impetus will be arranged the progress of mechanical processing technique.

Claims

1. micrometer inside caliper, its composition comprises: fixedly the elbow measuring staff, move elbow measuring staff, transmission shaft, stop sleeve, microdrum and adjusting knob, blade and be exclusively used in the digital display device of digital display micrometer inside caliper; It is characterized in that: fixedly elbow gauge head (13) and mobile elbow gauge head (14) are installed in respectively fixedly on the elbow measuring staff (12) and mobile elbow measuring staff (15); Fixedly elbow measuring staff (12) is connected with blade (9); Moving elbow measuring staff (15) is connected with transmission shaft (28) with stop sleeve (2); Transmission shaft (28) is connected with adjusting knob (7) with microdrum (4), and stop sleeve (2) is connected with microdrum (4) with blade (9), and the blade (9) that is exclusively used in the digital display micrometer inside caliper is provided with digital display device (52).

2. micrometer inside caliper according to claim 1 is characterized in that: fixedly elbow measuring staff (12) be provided with fixedly the elbow measuring staff cooperate with blade plane (37) and fixedly the elbow measuring staff cooperate periphery (38) and register pin (36) with blade.

3. micrometer inside caliper according to claim 1 is characterized in that: move elbow measuring staff (15) and be provided with mobile elbow measuring staff scale (1), move elbow measuring staff internal thread (39), chock (16), the straight wall of arc groove (33) and arc groove sphere (35).

4. micrometer inside caliper according to claim 1 is characterized in that: transmission shaft (28) is provided with screw rod (40), ratchet rod mounting hole (41), oil storage tank (26) and ball grooves (27).

5. micrometer inside caliper according to claim 1 is characterized in that: stop sleeve (2) is provided with microdrum and cooperates plane (17), microdrum to cooperate periphery (18), microdrum to cooperate periphery (22), bulb dog screw screw (42), stop sleeve to cooperate periphery (43), stop sleeve groove (44) with blade with transmission shaft with stop sleeve with stop sleeve.

6. micrometer inside caliper according to claim 1 is characterized in that: microdrum (4) is provided with calibration adjustments hole (5), annular knurl (6), microdrum scale (47), microdrum positioning screw hole (48).

7. micrometer inside caliper according to claim 1 is characterized in that: adjusting knob (7) is provided with annular knurl (6), handle ratchet wheel (31), adjusting knob positioning screw hole (49) and adjusting knob and round head screw matching thread (50).

8. micrometer inside caliper according to claim 1 is characterized in that: comprise special-purpose digital display micrometer inside caliper that has digital display device (52) and the verification frame (51) that is used for checking dimension.

9. micrometer inside caliper according to claim 1 is characterized in that: fixedly the manufacturing materials and the technology thereof of the circular arc portion of elbow gauge head (13) and mobile elbow gauge head (14) comprise tungsten carbide button.