CN211855099U

CN211855099U - Full-automatic tester for steel tape

Info

Publication number: CN211855099U
Application number: CN202020225053.4U
Authority: CN
Inventors: 许文成
Original assignee: Shenzhen Qinlihuacheng Technology Co ltd
Current assignee: Shenzhen Qinlihuacheng Technology Co ltd
Priority date: 2020-02-27
Filing date: 2020-02-27
Publication date: 2020-11-03
Anticipated expiration: 2030-02-27

Abstract

The utility model relates to a measuring instrument examines and determine technical field, specifically discloses a full-automatic appearance that examines and determine of steel tape measure, including examining and determining the platform, the one end of examining and determining the platform is installed tape measure mechanism, preceding double-layered chi mechanism and chi zero-bit mechanism at the interval in proper order, examine and determine and install a plurality of fender chi mechanisms on the platform, the other end sliding connection who examines and determine the platform has back double-layered chi mechanism, back double-layered chi mechanism passes through wire rope and is connected with the weight, the downside of the right-hand member of examining and determining the platform is provided with weight hoist mechanism, the utility model discloses can realize the full-automatic examination of steel tape measure to the measurement process is accurate fast.

Description

Full-automatic tester for steel tape

Technical Field

The utility model relates to a measuring instrument examines and determine technical field, especially relates to a full-automatic appearance that examines and determine of steel tape measure.

Background

The steel tape is a measuring tool commonly used by industrial, mining, enterprise and public institutions, errors exist in scale carving in the manufacturing process of the steel tape, the larger the steel tape range is, the larger the existing errors are, particularly the steel tape with the range of more than 5m, and the measuring result of the steel tape is influenced by the error of the scale carving, so that the steel tape is required to be produced or used in the verification process, and the standard for detecting whether the steel tape is qualified is also provided.

The conventional calibrating device is provided with a camera or a reading microscope in a sliding manner on a calibrating table, a clamping screw is used for clamping a detected and standard steel tape, then the scale difference between a plurality of positions of the detected steel tape and the standard steel tape is observed through the sliding reading microscope, the length of the calibrating table is usually long, a worker needs to move back and forth to record a detection result, the calibrating table is troublesome, the detected steel tape is only clamped by a tape clamping mechanism positioned at the front end and the rear end of the calibrating table, the clamping of the detected steel tape is unstable possibly, the detection result is possibly influenced, the loading and unloading of a conventional calibrating table steel tape tensioning weight are manual operation, the operation is inconvenient, the replacing speed is slow, and the calibrating speed is severely limited.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems mentioned in the background art, the utility model aims to provide a full-automatic verification instrument for a steel tape.

In order to realize the above object, the technical scheme of the utility model is that:

the full-automatic steel tape calibrator comprises a calibration platform and is characterized in that one end of the calibration platform is sequentially provided with a tape mechanism, a front tape clamping mechanism and a tape zero-position mechanism at intervals, the calibration platform is provided with 7 camera shooting mechanisms, the calibration platform is provided with 6 tape blocking mechanisms below the camera shooting mechanisms, each tape blocking mechanism comprises a sliding seat, the sliding seats are fixedly arranged on the calibration platform, the sliding seats are connected with a front tape blocking block and a rear tape blocking block in a sliding manner, the front tape blocking block and the rear tape blocking block are respectively provided with a first sliding chute and a second sliding chute, the first sliding chute and the second sliding chute are respectively connected with a front tape pressing block and a rear tape pressing block through a first sliding edge embedded in the first sliding chute and a second sliding edge embedded in the second sliding chute, the first sliding edge is fixed on the front tape pressing block, the second sliding edge is fixed on the rear tape pressing block, and the other end of the calibration platform is connected with a rear tape clamping mechanism in a sliding manner, the rear clamping ruler mechanism is connected with weights through a steel wire rope, and a weight lifting mechanism is installed on the side face of the verification platform.

Further, tape measure mechanism includes support frame, rolling dish and fender chi dish, support frame fixed mounting be in on the examination bench, install the motor on the support frame, the rolling dish install in on the support frame, it has a plurality of round holes to link up on the side of rolling dish, be connected with a plurality of blocks of axles on the side of fender chi dish, it passes through to keep off the chi dish the card axle is pegged graft on the rolling dish, install two quick chucks on the rolling dish, the rolling dish is close to install depth finding chi chuck seat on the side of keeping off the chi dish, the output shaft of rolling dish and motor.

Further, the front ruler clamping mechanism comprises a ruler clamping bottom plate, a ruler clamping supporting plate and a ruler clamping top plate, the ruler clamping bottom plate and the ruler clamping top plate are respectively connected to two ends of the ruler clamping supporting plate, two guide rods are fixedly connected between the ruler clamping top plate and the ruler clamping bottom plate, a stepping motor is mounted on the ruler clamping top plate, a screw rod is arranged between the ruler clamping top plate and the ruler clamping bottom plate in a penetrating manner, the screw rod is connected with an output shaft of the stepping motor, a ruler clamping movable block and a ruler clamping fixed block are arranged between the ruler clamping top plate and the ruler clamping bottom plate, the ruler clamping movable block is in sliding connection with the two guide rods, the ruler clamping movable block is in threaded connection with the screw rod, the ruler clamping fixed block is in sliding connection with the two guide rods, the ruler clamping fixed block is fixedly connected with the ruler clamping supporting plate through screws, and the ruler clamping bottom plate is fixedly mounted on the supporting frame, the rear ruler clamping mechanism and the front ruler clamping mechanism have the same structure.

Further, a meter counter is installed at the left end of the verification platform and is installed between the tape measure mechanism and the tape clamping mechanism.

Further, chi zero-position mechanism includes zero-position sliding table seat, zero-position sliding table seat fixed mounting in on the examination platform, sliding connection has zero-position sliding plate and sounding ruler to remove the seat on the zero-position sliding table seat, sliding connection has sliding base on the zero-position sliding plate, sliding connection has preceding sliding plate and back sliding plate on the sliding base, sliding connection has the zero-position briquetting respectively on two sides that preceding sliding plate and back sliding phase are close to, threaded connection has the sounding ruler top on the top surface of sounding ruler removal seat, fixedly connected with sounding ruler head pressure frame on the sounding ruler removal seat, sounding ruler head pressure frame is located directly over the sounding ruler top.

Furthermore, seven camera mechanisms installed on the verification platform are sequentially arranged, the first camera mechanism to the third camera mechanism in the direction of the front ruler clamping mechanism pointing to the rear ruler clamping mechanism are installed at an interval of half a meter, and the third camera mechanism to the seventh camera mechanism in the direction of the front ruler clamping mechanism pointing to the rear ruler clamping mechanism are installed at an interval of one meter.

Furthermore, the front end face and the rear end face of the sliding seat are respectively connected with a bearing seat, a threaded rod is arranged between the two bearing seats, and the front ruler block and the rear ruler block are both in threaded connection with the threaded rod.

Furthermore, the right end of the verification platform is provided with a supporting bottom plate, the left end of the supporting bottom plate is provided with a first slide rail, the first slide rail is connected with a sliding plate in a sliding mode, the rear clamping ruler mechanism is fixedly connected onto the sliding plate, the left end of the supporting bottom plate is provided with a limiting groove, a limiting block is connected onto the limiting groove in the sliding mode, the sliding plate is fixedly connected with the limiting block, a through hole is formed in the right end of the supporting bottom plate in a penetrating mode, the fixed end of the steel wire rope is fixedly connected onto the limiting block, and the other end of the steel wire rope penetrates through the through hole.

Further, the weight hoist mechanism is including connecting the bottom plate, connect bottom plate fixed mounting in on the right flank of examination platform, install the motor on the connecting the bottom plate, fixedly connected with lead screw on the output of motor, threaded connection has the nut seat on the lead screw, the lower extreme of connecting the bottom plate is provided with the second slide rail, sliding connection has the slider on the second slide rail, fixedly connected with connecting plate on the slider, the connecting plate with nut seat fixed connection, fixedly connected with layer board on the connecting plate.

Further, the bottom of examination platform is provided with a plurality of supporting seats, the supporting foot cup is installed to the top surface of supporting seat, examination platform install in on the supporting foot cup, the material of examination platform and supporting seat is the marble.

The utility model has the advantages that: the calibration table is provided with a plurality of camera mechanisms, so that the calibration of a plurality of positions on the steel tape can be completed in a short time, and the calibration speed is greatly accelerated; the calibrating table is provided with a plurality of ruler blocking mechanisms which have certain limiting effect on the steel tape to be detected, so that the fixed position of the steel tape to be detected is more accurate, and the calibrating error is reduced; and a weight lifting mechanism is arranged on the right side of the verification platform, so that the weights can be automatically loaded and unloaded, and the operation is convenient.

Drawings

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

fig. 2 is a front view of the present invention;

FIG. 3 is a schematic structural view of a tape measure mechanism according to the present invention;

fig. 4 is a schematic structural view of the middle-front ruler clamping mechanism of the present invention;

fig. 5 is a schematic structural view of the middle ruler zero position mechanism of the present invention;

fig. 6 is a schematic structural view of the middle ruler mechanism of the present invention;

fig. 7 is the combined schematic diagram of the middle and rear clamping ruler mechanism, the supporting bottom plate and the weight lifting mechanism of the utility model.

Reference numerals: 1. a calibration platform, 11, a support base, 12, a support foot cup, 2, a tape measure mechanism, 21, a support frame, 22, a winding disc, 23, a tape blocking disc, 24, a round hole, 25, a clamping shaft, 26, a quick chuck, 27, a depth measuring tape chuck base, 3, a front tape clamping mechanism, 31, a tape clamping base plate, 32, a tape clamping support plate, 33, a tape clamping top plate, 34, a guide rod, 35, a screw rod, 36, a tape clamping movable block, 37, a tape clamping fixed block, 4, a tape zero-position mechanism, 41, a zero-position slide block, 42, a zero-position slide plate, 43, a depth measuring tape movable block, 44, a slide base, 45, a front slide plate, 46, a rear slide plate, 47, a zero-position press block, 48, a depth measuring tape top, 49, a depth measuring tape head press frame, 5, a rear tape clamping mechanism, 6, a camera shooting mechanism, 7, a tape blocking mechanism, 71, a slide base, 72, a front tape blocking block, a first chute block, a 73, a rear block, 731 and a second, 74, a front pressure gauge block, 741, a first sliding edge, 75, a rear pressure gauge block, 751, a second sliding edge, 76, a bearing seat, 77, a threaded rod, 8, a supporting bottom plate, 81, a first sliding rail, 82, a limiting groove, 83, a limiting block, 84, a through hole, 85, a sliding plate, 9, a weight, 91, a steel wire rope, 10, a weight lifting mechanism, 101, a connecting bottom plate, 102, a screw rod, 103, a nut seat, 104, a second sliding rail, 105, a sliding block, 106, a connecting plate, 107, a supporting plate, 110 and a meter counter.

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. All other embodiments obtained by a person skilled in the art based on the embodiments of the present invention belong to the protection scope of the present invention.

As shown in fig. 1-7, the full-automatic calibrating apparatus for a steel tape comprises a calibrating table 1, a groove is formed on the top surface of the left end of the calibrating table 1, a tape mechanism 2, a front tape clamping mechanism 3 and a zero-position mechanism 4 are all installed in the groove, seven camera mechanisms 6 are installed on the calibrating table 1, the seven camera mechanisms 6 are arranged along the length direction of the calibrating table 1, a camera of each camera mechanism 6 is right aligned with the top surface of the calibrating table 1, six tape blocking mechanisms 7 are installed on the calibrating table 1, each tape blocking mechanism 7 corresponds to one camera mechanism 6 from right to left, each tape blocking mechanism 7 comprises a sliding seat 71, the sliding seats 71 are fixedly installed on the calibrating table 1, a front tape block 72 and a rear tape block 73 are connected to the sliding seats 71 in a sliding manner, the sliding directions of the front tape block 72 and the rear tape block 73 are perpendicular to the length direction of the calibrating table 1, and a first sliding groove 721 and a second groove are respectively arranged on the rear side surface of the front tape block 72 and the front side surface of the rear tape block 73 Two spouts 731, first spout 721 and second spout 731 are respectively through embedding first smooth arris 741 in first spout 721, embedding second smooth arris 751 in second spout 731 sliding connection have preceding pressure chi piece 74, back pressure chi piece 75, first smooth arris 741 is fixed on preceding pressure chi piece 74, and second smooth arris 751 is fixed on back pressure chi piece 75, and the right-hand member of verification platform 1 is seted up flutedly, and back clamp chi mechanism 5 sliding connection is in the recess, and back clamp chi mechanism 5 passes through wire rope 91 and is connected with the weight 9, and weight 9 is located the right side below of verification platform 1, install weight hoist mechanism 10 on the right-hand member of verification platform 1.

When the calibration platform is used in practice, the standard ruler is firstly placed on the calibration platform 1, the camera shooting mechanism 6 is used for collecting scales on the standard ruler and storing the scales in a computer, and the standard ruler is taken off after the camera shooting mechanism 6 finishes collecting the scales; then, pulling out a part of the steel tape from the steel tape supporting bottom plate 8, aligning the zero position part of the steel tape with the zero position mechanism, placing the middle part of the steel tape on the front ruler blocking block 72 or the rear ruler blocking block 73, pressing the steel tape by the ruler pressing block 74, clamping the rear part of the steel tape on the rear ruler clamping mechanism 5, pulling the rear ruler clamping mechanism 5 by the weight 9 to straighten the steel tape, and verifying the first section of the steel tape; after the first section is verified, a lifting device of the weight 9 is controlled to lift the weight 9, the rear tape clamping mechanism 5 is loosened to loosen the steel tape, the tape head of the steel tape is installed in the tape mechanism 2, then the tape mechanism 2 is controlled to roll the steel tape, the second section of the steel tape is moved to the position below the camera mechanism 6, the front tape clamping mechanism 3 and the rear tape clamping mechanism 5 clamp the steel tape, the weight 9 tensions the steel tape, the second section of the steel tape is verified, and from the second section to the last section of the detected steel tape, the tape mechanism 2, the front tape clamping mechanism 3, the rear tape clamping mechanism 5 and the weight 9 lifting mechanism are controlled by a computer to achieve complete automatic verification.

In this embodiment, the tape measure mechanism 2 includes a support frame 21, a winding disc 22 and a tape stopping disc 23, the support frame 21 is fixedly mounted on the verification platform 1, a motor is mounted on the support frame 21, the winding disc 22 is mounted on the support frame 21, eight circular holes penetrate through the side surface of the winding disc 22, the eight circular holes are uniformly arranged along the center of the winding disc 22, eight clamping shafts 25 are connected to the side surface of the tape stopping disc 23, one clamping shaft 25 corresponds to one circular hole, the tape stopping disc 23 is inserted into the winding disc 22 through the clamping shaft 25, two quick chucks 26 are mounted on the side surface of the winding disc 22 close to the tape stopping disc 23, when a steel tape head is clamped, the tape stopping disc 23 is detached from the winding disc 22, the steel tape head is wound on a certain clamping shaft 25, the tape stopping disc 23 is mounted on the winding disc 22, and the tape stopping disc 23 is further fixed by the quick chucks 26, the side face, close to the ruler blocking disc 23, of the winding disc 22 is provided with a depth measuring ruler chuck seat 27, when the depth measuring ruler is wound up, the depth measuring ruler chuck is clamped in the depth measuring ruler chuck seat, installation is convenient, the winding disc 22 is connected with an output shaft of a motor, the motor is connected to a computer, the winding disc 22 is controlled by the computer to rotate, and automation is achieved.

In this embodiment, the front tape clamping mechanism 3 includes a tape clamping bottom plate 31, a tape clamping support plate 32 and a tape clamping top plate 33, the tape clamping bottom plate 31 and the tape clamping top plate 33 are respectively connected to two ends of the tape clamping support plate 32, two guide rods 34 are fixedly connected between the tape clamping top plate 33 and the tape clamping bottom plate 31, a stepping motor is mounted on the tape clamping top plate 33, a screw rod 35 penetrates between the tape clamping top plate 33 and the tape clamping bottom plate 31, the screw rod 35 is connected with an output shaft of the stepping motor, a tape clamping movable block 36 and a tape clamping fixed block 37 are arranged between the tape clamping top plate 33 and the tape clamping bottom plate 31, the tape clamping movable block 36 is slidably connected with the two guide rods 34, the tape clamping movable block 36 is in threaded connection with the screw rod 35, the tape clamping fixed block 37 is slidably connected with the two guide rods 34, a rear side surface of the tape clamping fixed block 37 is fixedly connected to the tape clamping support plate 32 through screws, when the front tape clamping mechanism 3 is used, the stepping motor is driven, and the tape clamping moving block moves downwards until the tape clamping moving block contacts the tape clamping fixing block 37, so that the steel tape is clamped.

In this embodiment, a meter counter 110 is installed at the left end of the verification platform 1, the meter counter 110 is installed between the tape measure mechanism 2 and the front tape clamping mechanism 3, the meter counter 110 is installed, the meter counter 110 is controlled by a computer, the winding length of the tape measure mechanism 2 is recorded, and accurate control is achieved.

In this embodiment, the zero-position mechanism 4 includes a zero-position slide base 41, the zero-position slide base 41 is fixedly mounted on the verification platform 1, a zero-position slide plate 42 and a depth gauge moving base 43 are slidably connected to the zero-position slide plate 41, a slide base 44 is slidably connected to the zero-position slide plate 42, the sliding direction of the slide base 44 is perpendicular to the length direction of the verification platform 1, a front slide plate 45 and a rear slide plate 46 are slidably connected to the slide base 44, two side surfaces of the front slide plate 45 and the rear slide plate close to each other are respectively slidably connected with a zero-position press block 47, when the zero position of the steel tape is verified, the steel tape head is clamped between the front slide plate 45 and the rear slide plate 46, and the zero-position press block 47 presses the steel tape; the top surface of the depth gauge moving seat 43 is in threaded connection with a depth gauge top 48, the depth gauge moving seat 43 is fixedly connected with a depth gauge head pressing frame 49, the depth gauge head pressing frame 49 is located right above the depth gauge top 48, and when the depth gauge is checked, the gauge head of the depth gauge is placed on the depth gauge top 48, the depth gauge top 48 is rotated, so that the gauge head of the depth gauge is clamped between the depth gauge top 48 and the depth gauge head pressing frame 49, and the depth gauge head is fixed.

In this embodiment, seven image pickup mechanisms 6 are installed on the verification platform 1, the first to third image pickup mechanisms 6 from left to right are installed at an interval of half a meter, the third to seventh image pickup mechanisms 6 from left to right are installed at an interval of a whole meter, and the measurement length of the first section of the steel tape is 5 meters.

In this embodiment, the front and rear end surfaces of the sliding seat 71 are respectively connected with bearing seats 76, a threaded rod 77 is disposed between the two bearing seats 76, and the front gauge block 72 and the rear gauge block 73 are both in threaded connection with the threaded rod 76.

In this embodiment, a supporting bottom plate is installed at the right end of the verification platform 1, the right end of the supporting bottom plate extends out of the verification platform, a slide rail is arranged at the left end of the supporting bottom plate 8, a slide plate 85 is connected to the first slide rail 81 in a sliding manner, the rear clamping ruler mechanism 5 is fixedly connected to the slide plate 85, a limit groove 82 is formed in the left end of the supporting bottom plate 8, a limit block 83 is connected to the limit groove 82 in the sliding manner, the slide plate 85 is fixedly connected to the limit block 83, a through hole 84 is formed in the right end of the supporting bottom plate 8 in a penetrating manner, one end of the steel wire rope 91 is fixedly connected to the limit block 83, and the other end of the steel wire.

In this embodiment, the weight lifting mechanism 10 includes a connection bottom plate 101, the connection bottom plate 101 is fixedly mounted on the right side surface of the verification platform 1, a motor is mounted on the connection bottom plate 101, a lead screw 102 is fixedly connected to an output end of the motor, a nut seat 103 is connected to the lead screw 102 in a threaded manner, a second slide rail 104 is disposed at the lower end of the connection bottom plate 101, a slider 105 is connected to the second slide rail 104 in a sliding manner, a connection plate 106 is fixedly connected to the slider 105, the connection plate 106 is fixedly connected to the nut seat 103, a support plate 107 is fixedly connected to the connection plate 106, and when the weight 9 is unloaded, the support plate 107 is lifted to support the weight 9 by a computer driving motor, so that the tension of the weight 9 is reduced, and the weight 9 is.

In this embodiment, the bottom of examination platform 1 is provided with a plurality of supporting seats 11, supporting foot cup 12 is installed to the top surface of supporting seat 11, examination platform 1 install in on the supporting foot cup 12, the material of examination platform 1 and supporting seat 11 is the marble, adopts the marble material, reduces rocking of examining platform 1, makes examination platform 1 more stable, promotes and examines the precision.

The calibration table 1 is provided with the plurality of camera mechanisms 6, so that the calibration of a plurality of positions on the steel tape can be completed in a short time, and the calibration speed is greatly accelerated; the calibrating table 1 is provided with a plurality of ruler blocking mechanisms 7, and the ruler blocking mechanisms 7 play a certain limiting effect on the steel tape to be tested, so that the fixed position of the steel tape to be tested is more accurate, and the calibrating error is reduced; and a weight lifting mechanism 10 is arranged on the right side of the verification platform 1, so that the weights 9 can be automatically loaded and unloaded, and the operation is convenient.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not intended to limit the present invention, and all modifications, equivalents, improvements and the like that are within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. Full-automatic examination appearance of steel tape, including examination platform (1), its characterized in that, the one end of examination platform (1) is in proper order installed at interval tape measure mechanism (2), preceding double-layered chi mechanism (3) and chi zero-bit mechanism (4), install 7 camera shooting mechanism (6) on examination platform (1), examination platform (1) is gone up 6 fender chi mechanism (7) are installed to the below of camera shooting mechanism (6), it includes sliding seat (71) to keep off chi mechanism (7), sliding seat (71) fixed mounting is in on examination platform (1), sliding seat (71) go up sliding connection has preceding fender chi piece (72) and back fender chi piece (73), be equipped with first spout (721) and second spout (731) on preceding fender chi piece (72) and back fender chi piece (73) respectively, first spout (721) and second spout (731) are respectively through first smooth (741) in embedding first spout (721), 741, Embedding second smooth arris (751) in second spout (731) sliding connection have preceding pressure chi piece (74), back pressure chi piece (75), first smooth arris (741) are fixed on preceding pressure chi piece (74), and second smooth arris (751) are fixed on back pressure chi piece (75), the other one end sliding connection of examination platform (1) has back clamp chi mechanism (5), back clamp chi mechanism (5) are connected with weight (9) through wire rope (91), install weight hoist mechanism (10) on the side of examination platform (1).

2. The full-automatic steel tape calibrating instrument according to claim 1, wherein the tape mechanism (2) comprises a support frame (21), a winding disc (22) and a tape stopping disc (23), the support frame (21) is fixedly mounted on the calibrating table (1), a motor is mounted on the support frame (21), the winding disc (22) is mounted on the support frame (21), a plurality of through holes are formed in the winding disc (22), a clamping shaft (25) matched with and inserted into the through holes is fixedly connected to the tape stopping disc (23), two quick chucks (26) are mounted on the winding disc (22), a depth measuring tape chuck seat (27) is mounted on the side surface, close to the tape stopping disc (23), of the winding disc (22), and the winding disc (22) is connected with an output shaft of the motor.

3. The full-automatic steel tape calibrator according to claim 2, wherein the front clamping ruler mechanism (3) comprises a clamping ruler bottom plate (31), a clamping ruler supporting plate (32) and a clamping ruler top plate (33), the clamping ruler bottom plate (31) and the clamping ruler top plate (33) are respectively connected to two ends of the clamping ruler supporting plate (32), two guide rods (34) are fixedly connected between the clamping ruler top plate (33) and the clamping ruler bottom plate (31), a stepping motor is mounted on the clamping ruler top plate (33), a screw rod (35) penetrates through between the clamping ruler top plate (33) and the clamping ruler bottom plate (31), the screw rod (35) is connected with an output shaft of the stepping motor, a clamping ruler movable block (36) and a clamping ruler fixed block (37) are arranged between the clamping ruler top plate (33) and the clamping ruler bottom plate (31), and the clamping ruler movable block (36) is connected with the two guide rods (34) in a sliding manner, press from both sides chi movable block (36) with screw rod (35) threaded connection, press from both sides chi fixed block (37) and two guide bar (34) sliding connection, press from both sides chi fixed block (37) through the screw with press from both sides chi backup pad (32) fixed connection, press from both sides chi bottom plate (31) fixed mounting in on support frame (21), back press from both sides chi mechanism (5) with preceding chi mechanism (3) structure is the same.

4. The full-automatic steel tape calibrator according to claim 1, wherein a meter counter (110) is mounted at one end of the calibration platform (1), and the meter counter (110) is mounted between the tape mechanism (2) and the tape clamping mechanism.

5. The full-automatic steel tape calibrator according to claim 1, wherein the ruler zero-position mechanism (4) comprises a zero-position sliding table base (41), the zero-position sliding table base (41) is fixedly mounted on the calibration table (1), a zero-position sliding plate (42) and a depth measuring ruler moving base (43) are slidably connected onto the zero-position sliding table base (41), a sliding base (44) is slidably connected onto the zero-position sliding plate (42), a front sliding plate (45) and a rear sliding plate (46) are slidably connected onto the sliding base (44), zero-position pressing blocks (47) are respectively slidably connected onto two adjacent side surfaces of the front sliding plate (45) and the rear sliding plate, a depth measuring ruler top head (48) is threadedly connected onto the top surface of the depth measuring ruler moving base (43), and a depth measuring ruler head pressing frame (49) is fixedly connected onto the depth measuring ruler moving base (43), the depth measuring ruler head pressing frame (49) is positioned right above the depth measuring ruler top head (48).

6. The full-automatic steel tape calibrator according to claim 1, wherein seven cameras (6) mounted on the calibration platform (1) are sequentially arranged, and are mounted at a half-meter interval between the first to third cameras (6) in the direction from the front tape clamping mechanism (3) to the rear tape clamping mechanism (5), and at a one-meter interval between the third to seventh cameras (6) in the direction from the front tape clamping mechanism (3) to the rear tape clamping mechanism (5).

7. The full-automatic steel tape calibrator according to claim 1, wherein the front end surface and the rear end surface of the sliding seat (71) are respectively connected with a bearing seat (76), a threaded rod (77) is arranged between the two bearing seats (76), and the front ruler block (72) and the rear ruler block (73) are both in threaded connection with the threaded rod (77).

8. The full-automatic calibrating instrument for the steel tape according to claim 1, characterized in that one end of the calibrating platform (1) is provided with a supporting bottom plate (8), the other end of the supporting bottom plate (8) is provided with a first sliding rail (81), the first sliding rail (81) is connected with a sliding plate (85) in a sliding way, the rear ruler clamping mechanism (5) is fixedly connected to the sliding plate (85), the left end of the supporting bottom plate (8) is provided with a limit groove (82), a limiting block (83) is connected in the limiting groove (82) in a sliding way, the sliding plate (85) is fixedly connected with the limiting block (83), a through hole (84) is penetrated through the right end of the supporting bottom plate (8), one end of the steel wire rope (91) is fixedly connected to the limiting block (83), the other end of the steel wire rope (91) penetrates through the through hole (84) and is connected to a weight (9).

9. The full-automatic verification instrument for steel tape according to claim 1, wherein the weight lifting mechanism (10) comprises a connection base plate (101), the connecting bottom plate (101) is fixedly arranged on the right side surface of the verification platform (1), a motor is arranged on the connecting bottom plate (101), a screw rod (102) is fixedly connected on the output end of the motor, a nut seat (103) is connected on the screw rod (102) in a threaded manner, a second slide rail (104) is arranged at the lower end of the connecting bottom plate (101), the second slide rail (104) is connected with a slide block (105) in a sliding way, the slide block (105) is fixedly connected with a connecting plate (106), the connecting plate (106) is fixedly connected with the nut seat (103), a supporting plate (107) is fixedly connected onto the connecting plate (106), and the weight (9) is placed on the supporting plate (107).

10. The full-automatic steel tape calibrator according to claim 1, wherein a plurality of supporting seats (11) are arranged at the bottom of the calibration platform (1), supporting foot cups (12) are mounted on the top surfaces of the supporting seats (11), the calibration platform (1) is mounted on the supporting foot cups (12), and the calibration platform (1) and the supporting seats (11) are made of marble.