CN211452260U - Full-automatic thread measuring instrument - Google Patents

Abstract

The utility model provides a full-automatic screw thread measuring apparatu, including bed frame, X axle mechanism, Z axle mechanism, tool mechanism, fixed establishment, mounting panel and measuring stick, be equipped with the fixed station on the bed frame, establish the fixed riser of vertical direction on the fixed station, Z axle mechanism sets up on the fixed station, X axle mechanism sets up on Z axle mechanism, be equipped with the mounting panel in the X axle mechanism, be equipped with the measuring stick on the mounting panel, the measuring stick front end is equipped with the probe, the measuring stick sets up along X axle direction, the probe is the cross form for vertical direction and measuring stick tool mechanism sets up on fixed riser, fixed establishment sets up on the fixed station along Z axle direction. Compared with the prior art, the counter weight is automatically adjusted in the using process, the clamping mechanism prevents collision, the jig can be automatically identified, and the jig is convenient to mount and dismount.

Description

Full-automatic thread measuring instrument

Technical Field

The utility model relates to a technical field that the screw thread was measured specifically is a full-automatic screw thread measuring apparatu.

Background

Threaded workpieces are the most common components in the mechanical sector, wherein threaded connections are of utmost importance in the machine manufacturing industry.

The traditional thread parameter measurement is a microscopic measurement method, a thread profile diagram of a thread workpiece is obtained by utilizing an image method principle, and then the thread parameter is calculated according to the thread profile diagram, the measurement precision is influenced by a helix angle, and the requirement on the thread surface quality is high. The subsequent laser interferometer measurement method is still influenced by a plurality of factors such as the surface quality of the thread, the tooth form angle, the external environment and the like, the measurement precision cannot be guaranteed, and the cost of the measuring instrument is high.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a full-automatic high accuracy contact screw thread measuring apparatu to solve the technical problem in the background art.

In order to achieve the above object, the present invention provides the following technical solutions:

a full-automatic thread measuring instrument comprises a base frame, an X-axis mechanism, a Z-axis mechanism, a jig mechanism, a fixing mechanism, a mounting plate and a measuring rod, wherein the base frame is provided with a fixing table, the fixing table is provided with a fixing vertical plate in the vertical direction, the Z-axis mechanism is arranged on the fixing table, the X-axis mechanism is arranged on the Z-axis mechanism, the X-axis mechanism is provided with the mounting plate, the mounting plate is provided with the measuring rod, the front end of the measuring rod is provided with a probe, the measuring rod is arranged along the X-axis direction, the probe is in a cross shape with the measuring rod in the vertical direction, the jig mechanism is arranged on the fixing vertical plate, the fixing mechanism is arranged on the fixing table along the Z-axis direction, the jig mechanism comprises a jig mounting seat and a jig device, the jig mounting seat is provided with a jig mounting position, and the jig device is arranged, the jig comprises a jig mounting position, a fixing mechanism and a measuring device, wherein the jig mounting position is provided with a through hole, the jig device is provided with a placing position, the fixing mechanism comprises a measuring guide rail, a vertical seat, a measuring column, a fixing part and a locking device, the measuring guide rail is arranged on a fixing table along the X-axis direction, the vertical seat can be arranged on the measuring guide rail along the moving direction of the measuring guide rail, the measuring column is arranged on the vertical seat, the fixing part is arranged on the measuring column, and the locking device is arranged on the vertical seat and can be locked with the measuring guide rail.

The further technical scheme is as follows: the Z-axis mechanism comprises a Z-axis driving device, a Z-axis guide block and a Z-axis guide rail frame, wherein the Z-axis guide block is fixedly arranged on the fixed table, the Z-axis guide rail frame is sleeved on the Z-axis guide block, and the Z-axis driving device drives the Z-axis guide rail frame to move up and down along the Z-axis guide rail.

The further technical scheme is as follows: x axle mechanism includes, X axle drive arrangement, X axle guide block, X axle guide rail frame, be equipped with two X axle installation positions on the Z axle guide rail frame, X axle guide block both ends are equipped with the installation face, the installation face corresponds the setting on X axle installation position, X axle guide rail frame cover is established on X axle guide block, X axle drive arrangement drives X axle guide rail frame and follows the motion of X axle guide block.

The further technical scheme is as follows: the jig mechanism is further provided with a quick-release device, and the quick-release device comprises a quick-release handle, a quick-release rotating shaft and a quick-release ejector block.

The further technical scheme is as follows: still be equipped with the discernment sensor on the tool mount pad, be equipped with the discernment hole that corresponds with discernment sensor position on the tool device.

The further technical scheme is as follows: the locking device comprises a locking handle, a connecting shaft and a locking block.

The further technical scheme is as follows: the adjustable counterweight mechanism comprises a hinge, a counterweight motor, a counterweight rotating arm and a fixed rod, wherein the hinge comprises a fixed part, a movable part and a connecting part; the utility model discloses a counter weight motor, including dead lever, counter weight rotor arm, fixed part, counter weight motor, counter weight rotor arm, movable part, counter weight motor, fixed part, counter weight motor, counter weight rotor arm and dead lever, the measuring stick is connected to dead lever one end, and the other end sets up with fixed part fixed connection, the counter weight motor sets up on the mounting panel, the counter weight rotor arm is connected with the rotor of counter weight motor, counter weight rotor arm and dead lever are located the both ends of movable.

The further technical scheme is as follows: the counterweight rotor arm comprises a main rotor arm and a slave rotor arm, the main rotor arm is hinged with the slave rotor arm, rollers are further arranged below the slave rotor arm, guide wheel columns are further arranged on the fixed rod and correspond to the rollers up and down, and when the counterweight motor drives the main rotor arm to rotate, the main rotor arm and the slave rotor arm rotate through a hinged point, so that the change of the distance between the slave rotor arm and the counterweight motor is realized.

The further technical scheme is as follows: the adjustable counterweight mechanism further comprises a counterweight block, an opening is formed below the counterweight block to enable the section to form an N-shaped structure, and when the counterweight block is arranged on the slave rotating arm, the rotating arm is clamped into the opening.

The further technical scheme is as follows: the adjustable counterweight mechanism further comprises a counterweight limiting device, and the counterweight limiting device comprises a limiting frame, a limiting switch and a limiting stop block.

The further technical scheme is as follows: still include fixture, fixture is including setting up grip slipper, centre gripping motor, carousel, pivot on the mounting panel, clamp splice and last briquetting down, the centre gripping motor sets up on the grip slipper, the centre gripping motor drives the coaxial rotation of carousel, the carousel both ends are equipped with down presss from both sides the bumping post and presses the bumping post on respectively, it is outstanding in pressing the bumping post down in the axial direction to go up to press the bumping post, the pivot sets up on the grip slipper, clamp splice one side sets up on the pivot down, and its opposite side extends to and presses the bumping post top, the clamp splice still is equipped with down and presss from both sides the pin down, go up briquetting one end and set up on the pivot, and its other end extends to and presss from both sides on the bumping post down.

Compared with the prior art, the counter weight is automatically adjusted in the using process, the clamping mechanism prevents collision, the jig can be automatically identified, and the jig is convenient to mount and dismount.

Drawings

FIG. 1: a perspective view of a full-automatic thread measuring instrument.

FIG. 2: an internal structure diagram of a full-automatic thread measuring instrument.

FIG. 3: a Z-axis structure chart of a full-automatic thread measuring instrument.

FIG. 4: an X-axis structure chart of a full-automatic thread measuring instrument.

FIG. 5: a measuring rod installation diagram of a full-automatic thread measuring instrument.

FIG. 6: a structure diagram of a counterweight mechanism of a full-automatic thread measuring instrument.

FIG. 7: a structure diagram of a counterweight limiting device of a full-automatic thread measuring instrument.

FIG. 8: a structure diagram of a clamping mechanism of a full-automatic thread measuring instrument.

FIG. 9: an explosion diagram of a clamping mechanism of a full-automatic thread measuring instrument.

FIG. 10: a side view of a clamping mechanism of a full-automatic thread measuring instrument.

FIG. 11: a clamping state diagram of a clamping mechanism of a full-automatic thread measuring instrument.

FIG. 12: a structure diagram of a locking device of a fixing mechanism of a full-automatic thread measuring instrument.

FIG. 13: an explosion diagram of a jig mechanism of a full-automatic thread measuring instrument.

FIG. 14: a structure diagram of an identification hole of a jig device of a jig mechanism of a full-automatic thread measuring instrument.

FIG. 15: a first quick-release device structure chart of a jig mechanism of a full-automatic thread measuring instrument.

FIG. 16: a quick-release device structure chart of a jig mechanism of a full-automatic thread measuring instrument.

FIG. 17: a jig mechanism stereogram of a full-automatic thread measuring instrument.

FIG. 18: a thread testing chart of a full-automatic thread measuring instrument.

FIG. 19: fig. 18 is an enlarged view at a.

FIG. 20: fig. 19 is an enlarged view at B.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

In the embodiment of the present invention, referring to fig. 1-20,

a full-automatic thread measuring instrument comprises a base frame 1, an X-axis mechanism 2, a Z-axis mechanism 3, a jig mechanism 6, a fixing mechanism 7, a mounting plate 8 and a measuring rod 9, wherein a fixing platform 11 is arranged on the base frame 1, a vertical fixing plate 12 in the vertical direction is arranged on the fixing platform 11, the Z-axis mechanism 3 is arranged on the fixing platform 11, the X-axis mechanism 2 is arranged on the Z-axis mechanism 3, the mounting plate 8 is arranged on the X-axis mechanism 2, the measuring rod 9 is arranged on the mounting plate 8, a probe 91 is arranged at the front end of the measuring rod 9, the measuring rod 9 is arranged along the X-axis direction, the probe 91 is in a cross shape with the measuring rod 9 in the vertical direction, the upper end and the lower end of the probe 91 are in a conical structure and can measure external threads and internal threads, the jig mechanism 6 is arranged on the vertical fixing plate 12, the fixing mechanism 7 is arranged on the fixing platform 11 along, as shown in fig. 13, the jig mechanism 6 includes a jig mounting base 61 and a jig device 64, the jig mounting base 61 is provided with a jig mounting location 62, the jig device 64 is mounted on the jig mounting base 61, the jig mounting location 62 is provided with a through hole 621, the jig device 64 is provided with a placement location 642 as shown in fig. 1, 2 and 12, the fixing mechanism 7 includes a measuring guide rail 71, a vertical base 72, a measuring column 73, a fixing portion 74 and a locking device 75, the measuring guide rail 71 is disposed on the fixing table 11 along the X-axis direction, the vertical base 72 is disposed on the measuring guide rail 71 movably along the measuring guide rail 71, the measuring column 73 is disposed on the vertical base 72, the fixing portion 74 is disposed on the measuring column 73, the locking device 75 is disposed on the vertical base 72 and can be locked with the measuring guide rail 71, when in use, the measuring column 73 is moved to a position relatively suitable for the jig mechanism 6 along the measuring guide rail 71 according to the size of the screw to be measured, one end of the screw is installed on the placing position 642, the other end of the screw is installed on the fixing portion 74, the vertical seat 72 and the measuring guide rail 71 are locked and fixed by the locking device 75, and the probe 91 penetrates through the jig device 64 through the through hole 621 to measure the screw thread of the screw.

As shown in fig. 3, the Z-axis mechanism 3 includes a Z-axis driving device 31, a Z-axis guide block 32, and a Z-axis guide rail frame 33, wherein the Z-axis guide block 32 is fixedly disposed on the fixed stage 11, the Z-axis guide rail frame 33 is sleeved on the Z-axis guide block 32 through an air bearing, and the Z-axis driving device 31 drives the Z-axis guide rail frame 33 to move up and down along the Z-axis guide rail.

As shown in fig. 4, the X-axis mechanism 2 includes an X-axis driving device 21, an X-axis guide block 22, and an X-axis guide rail frame 23, two X-axis installation positions 331 are disposed on the Z-axis guide rail frame 33, two ends of the X-axis guide block 22 are disposed with installation surfaces 221, the installation surfaces 221 are correspondingly disposed on the X-axis installation positions 331 so as to realize the setting of the X-axis guide block 22 on the Z-axis guide rail frame 33, the X-axis guide rail frame 23 is sleeved on the X-axis guide block 22 through an air bearing, and the X-axis driving device 21 drives the X-axis guide rail frame 23 to move along the X-axis guide block 22.

The further technical scheme is as follows: as shown in fig. 13-17, the jig mechanism 6 is further provided with a quick release device 63, and the quick release device 63 includes a quick release handle 631, a quick release shaft 632, and a quick release top block 633. The quick release handle 631 is pulled upwards, and the quick release top block 633 presses the jig device 64, so that the jig device 64 is conveniently detached.

The further technical scheme is as follows: as shown in fig. 13-14, the jig mounting base 61 is further provided with an identification sensor 65, and the jig device 64 is provided with an identification hole 641 corresponding to the identification sensor 65. For example, 4 identification sensors 65 are sequentially provided from top to bottom on the jig device 64, and the jig device 64 is also provided with an identification hole 641, when the identification hole 641 is a deep hole, the identification sensor 65 does not output an electric signal, so the recorded electric signal is "0", when the identification hole 641 is a shallow hole, the identification sensor 65 outputs an electric signal, so the recorded electric signal is "1", when the identification hole 641 on one of the jig devices 64 is sequentially: when the tool device 64 is "deep, shallow, deep, and shallow", the four recognition sensors 65 respectively output the electric signals "0101", and when the recognition holes 641 on the other tool device 64 are sequentially: when the "deep, shallow" is performed, the four recognition sensors 65 output the electric signals "0011" respectively, and the pushing is performed to recognize the different jig devices 64.

The further technical scheme is as follows: as shown in fig. 12, the locking device 75 includes a locking handle 751, a connecting shaft 752 and a locking block 753, which is locked clockwise and unlocked counterclockwise as viewed in the drawing.

The further technical scheme is as follows: as shown in fig. 5-6, the adjustable counterweight mechanism 4 is further included, the adjustable counterweight mechanism 4 is disposed on the mounting plate 8, the adjustable counterweight mechanism 4 includes a hinge 41, a counterweight motor 42, a counterweight rotating arm 43 and a fixing rod 45, the hinge 41 includes a fixing portion 411, a movable portion 412 and a connecting portion 413, the fixing portion 74 is disposed on the mounting plate 8, the movable portion 412 is integrally connected to the fixing portion 411 through the connecting portion 413, and the two ends of the connecting portion 413 with the minimum central thickness are respectively integrally connected to the connecting portion 413 and the fixing portion 74 in a gradually thickening manner; the measuring stick 9 is connected to dead lever 45 one end, and the other end sets up with fixed part 411 fixed connection, counter weight motor 42 sets up on mounting panel 8, counter weight rotor arm 43 is connected with counter weight motor 42's rotor, counter weight rotor arm 43 and dead lever 45 are located the both ends of movable part 412 respectively, when counter weight motor 42 drives counter weight rotor arm 43 and rotates, can adjust the length of the arm of force to realize the purpose of automatic counter weight.

The further technical scheme is as follows: as shown in fig. 5-6, the counterweight rotating arm 43 includes a main rotating arm 431 and a slave rotating arm 432, the main rotating arm 431 and the slave rotating arm 432 are hinged to each other, a roller is further disposed below the slave rotating arm 432, a guide wheel column is further disposed on the fixing rod 45, the guide wheel column and the roller are vertically disposed in a corresponding manner, when the counterweight motor 42 drives the main rotating arm 431 to rotate, the main rotating arm 431 and the slave rotating arm 432 are rotated at a hinged point, so that a distance between the slave rotating arm 432 and the counterweight motor 42, that is, a force arm is changed, and thus adjustment of the counterweight is achieved, and the roller moves along the guide wheel column.

The further technical scheme is as follows: as shown in fig. 6, the adjustable counterweight mechanism 4 further includes a counterweight 44, an opening is provided below the counterweight 44 to form an N-shaped cross section, when the counterweight 44 is disposed on the secondary rotating arm 432, the rotating arm is clamped into the opening to facilitate the adjustment of the counterweight 44 on the secondary rotating arm 432, a fixed countersunk screw is further disposed on one side of the counterweight 44, and after the adjustment of the counterweight 44 on the secondary rotating arm 432 is completed, the countersunk screw can be pressed against the secondary rotating arm 432 to fix the counterweight 44.

The further technical scheme is as follows: as shown in fig. 6-7, the adjustable counterweight mechanism 4 further includes a counterweight limiting device 46, and the counterweight limiting device 46 includes a limiting frame 461, a limiting switch 462 and a limiting stop 463; a specific structure is explained.

The further technical scheme is as follows: as shown in fig. 8-11, the clamping mechanism 5 further comprises a clamping mechanism 5, the clamping mechanism 5 comprises a clamping base 51 disposed on the mounting plate 8, a clamping motor 52, a rotating disc 53, a shaft pin 54, a lower clamping block 55 and an upper pressing block 56, the clamping motor 52 is disposed on the clamping base 51, the clamping motor 52 drives the rotating disc 53 to rotate coaxially, the two ends of the rotating disc 53 are respectively provided with a lower clamping stop column 531 and an upper pressing stop column 532, the upper pressing stop column 532 protrudes out of the lower clamping stop column 531 in the axial direction, the shaft pin 54 is disposed on the clamping base 51, one side of the lower clamping block 55 is disposed on the shaft pin 54, the other side thereof extends above the upper pressing stop column 532 (in the normal case, due to the gravity, the lower clamping block 55 will fall onto the upper pressing stop column 532 with the shaft pin 54 as the shaft pin), the lower clamping block 55 is further provided with a lower clamping spring rod 551, one end of the upper pressing block 56 is disposed on the shaft pin 54, and the other end thereof extends onto the lower clamping stop column 531, due to the gravity, the upper pressing block 56 will fall to the upper part of the lower clamping stop column 531 by taking the shaft pin 54 as the axial direction), and the working principle is as follows: when the turntable 53 rotates the upper pressing catch 532 to be perpendicular to the lower pressing catch 531, the upper pressing catch 532 props against the lower clamping block 55 to move upwards, so as to drive the lower clamping spring bar 551 to move upwards, the upper pressing block 56 rotates downwards under the action of gravity, because the fixing rod 45 is positioned between the lower clamping spring bar 551 and the upper pressing block 56, so as to realize the function of clamping the fixing rod 45, when the fixing rod 45 needs to be loosened by the clamping mechanism 5, the turntable 53 rotates 90 degrees again, so that the upper pressing catch 532 and the lower clamping catch 531 are in a horizontal state, the lower clamping block 55 falls under the action of gravity, so as to enable the lower clamping spring bar 551 to move downwards, and the lower clamping catch 531 can push the upper pressing block 56 to move upwards, so as to realize the loosening. The clamping mechanism 5 is not for realizing the measuring function, because the fixed rod 45 (measuring rod) is soft and easy to swing up and down, and needs to be withdrawn quickly after the test is finished, so that the clamping mechanism 5 is added to avoid the collision caused by the overlarge up-down swing amplitude of the probe 91 (measuring pin).

It is obvious to a person skilled in the art that the invention is not restricted to details of the foregoing exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (10)

1. The utility model provides a full-automatic screw thread measuring apparatu which characterized in that: the measuring device comprises a base frame, an X-axis mechanism, a Z-axis mechanism, a jig mechanism, a fixing mechanism, a mounting plate and a measuring rod, wherein a fixing table is arranged on the base frame, a fixing vertical plate in the vertical direction is arranged on the fixing table, the Z-axis mechanism is arranged on the fixing table, the X-axis mechanism is arranged on the Z-axis mechanism, the mounting plate is arranged on the X-axis mechanism, the measuring rod is arranged on the mounting plate, a probe is arranged at the front end of the measuring rod, the measuring rod is arranged along the X-axis direction, the probe is in a cross shape with the measuring rod in the vertical direction, the jig mechanism is arranged on the fixing vertical plate, the fixing mechanism is arranged on the fixing table along the Z-axis direction, the jig mechanism comprises a jig mounting seat and a jig device, a jig mounting position is arranged on the jig mounting seat, the jig device is arranged on the jig mounting seat, the jig device is provided with a placing position, the fixing mechanism comprises a measuring guide rail, a vertical seat, a measuring column, a fixing part and a locking device, the measuring guide rail is arranged on the fixing table along the X-axis direction, the vertical seat can be arranged on the measuring guide rail along the movement of the measuring guide rail, the measuring column is arranged on the vertical seat, the fixing part is arranged on the measuring column, and the locking device is arranged on the vertical seat and can be locked with the measuring guide rail.

2. The full-automatic thread measuring instrument according to claim 1, wherein: the Z-axis mechanism comprises a Z-axis driving device, a Z-axis guide block and a Z-axis guide rail frame, wherein the Z-axis guide block is fixedly arranged on the fixed table, the Z-axis guide rail frame is sleeved on the Z-axis guide block, and the Z-axis driving device drives the Z-axis guide rail frame to move up and down along the Z-axis guide rail.

3. The full-automatic thread measuring instrument according to claim 1, wherein: x axle mechanism includes, X axle drive arrangement, X axle guide block, X axle guide rail frame, be equipped with two X axle installation positions on the Z axle guide rail frame, X axle guide block both ends are equipped with the installation face, the installation face corresponds the setting on X axle installation position, X axle guide rail frame cover is established on X axle guide block, X axle drive arrangement drives X axle guide rail frame and follows the motion of X axle guide block.

4. The full-automatic thread measuring instrument according to claim 1, wherein: the jig mechanism is further provided with a quick-release device, and the quick-release device comprises a quick-release handle, a quick-release rotating shaft and a quick-release ejector block.

5. The full-automatic thread measuring instrument according to claim 1, wherein: still be equipped with the discernment sensor on the tool mount pad, be equipped with the discernment hole that corresponds with discernment sensor position on the tool device.

6. The full-automatic thread measuring instrument according to claim 1, wherein: the locking device comprises a locking handle, a connecting shaft and a locking block.

7. The full-automatic thread measuring instrument according to claim 1, wherein: the adjustable counterweight mechanism comprises a hinge, a counterweight motor, a counterweight rotating arm and a fixed rod, wherein the hinge comprises a fixed part, a movable part and a connecting part; the utility model discloses a counter weight motor, including dead lever, counter weight rotor arm, fixed part, counter weight motor, counter weight rotor arm, movable part, counter weight motor, fixed part, counter weight motor, counter weight rotor arm and dead lever, the measuring stick is connected to dead lever one end, and the other end sets up with fixed part fixed connection, the counter weight motor sets up on the mounting panel, the counter weight rotor arm is connected with the rotor of counter weight motor, counter weight rotor arm and dead lever are located the both ends of movable.

8. The full-automatic thread measuring instrument according to claim 7, wherein: the counterweight rotor arm comprises a main rotor arm and a slave rotor arm, the main rotor arm is hinged with the slave rotor arm, rollers are further arranged below the slave rotor arm, guide wheel columns are further arranged on the fixed rod and correspond to the rollers up and down, and when the counterweight motor drives the main rotor arm to rotate, the main rotor arm and the slave rotor arm rotate through a hinged point, so that the change of the distance between the slave rotor arm and the counterweight motor is realized.

9. The full-automatic thread measuring instrument according to claim 7, wherein: the adjustable counterweight mechanism also comprises a counterweight block, an opening is arranged below the counterweight block to enable the section to form an N-shaped structure, and when the counterweight block is arranged on the slave rotating arm, the rotating arm is clamped into the opening; the adjustable counterweight mechanism further comprises a counterweight limiting device, and the counterweight limiting device comprises a limiting frame, a limiting switch and a limiting stop block.

10. The full-automatic thread measuring instrument according to claim 1, wherein: still include fixture, fixture is including setting up grip slipper, centre gripping motor, carousel, pivot on the mounting panel, clamp splice and last briquetting down, the centre gripping motor sets up on the grip slipper, the centre gripping motor drives the coaxial rotation of carousel, the carousel both ends are equipped with down presss from both sides the bumping post and presses the bumping post on respectively, it is outstanding in pressing the bumping post down in the axial direction to go up to press the bumping post, the pivot sets up on the grip slipper, clamp splice one side sets up on the pivot down, and its opposite side extends to and presses the bumping post top, the clamp splice still is equipped with down and presss from both sides the pin down, go up briquetting one end and set up on the pivot, and its other end extends to and presss from both sides on the bumping post down.

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