High-speed rotating clamping jaw mechanism

Abstract

The utility model discloses a high-speed rotating clamping jaw mechanism which comprises a rack, and the top of the rack is provided with a conductive slip ring connected through a movable fit mechanism. The conductive slip ring is connected with a follow-up shaft with a hollow structure; the follow-up shaft is connected with the rack through an upper bearing mounting plate and a lower bearing mounting plate which are arranged at an interval; a driving gear driven by a first motor is arranged on the lower bearing mounting plate, and the driving gear is in meshed connection with a driven gear arranged at the bottom of the follow-up shaft; a second motor electrically connected with the conductive slip ring is arranged in an inner cavity of the follow-up shaft, a straight gear is arranged on an output shaft of the second motor, sliding racks connected with the lower bearing mounting plate are symmetrically arranged on the two sides of the straight gear, a clamping jaw is arranged on each sliding rack, and V-shaped jaw teeth arranged at intervals in the vertical direction are arranged on each clamping jaw. And the V-shaped claw teeth on the two clamping claws are oppositely arranged and are staggered up and down. The clamping jaw mechanism is ingenious in structure and stable in operation, high-speed stable rotation of the clamping jaw can be achieved, and the operation stability of equipment is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a clamping equipment technical field especially a kind of high-speed rotary jaw mechanism. BACKGROUND

[0002] With the development of technology and the pursuit of health of human, more and more automation equipment is introduced into medical field, on the one hand, it reduces manual transfer operation, avoids the pollution to operator, on the other hand, it can promote medical field to develop in the direction of higher intelligentization and integration. Electric rotary jaw is a very important basic element in some automation equipment, which is widely used in clamping cotton swab, sample tube and the like. Among them, for the electric rotary jaw for clamping cotton swab, since the clamping object is relatively small, it often appears that clamping is not firm, it drops halfway and the like. Moreover, the existing electric rotary jaw is prone to shaking and swinging too much in high-speed rotating state of more than 1000 rpm, which affects the service life of equipment. SUMMARY

[0003] In order to solve the above problems, the utility model provides a kind of high-speed rotary jaw mechanism that is firm and stable in operation, and the following technical solutions can be specifically adopted:

[0004] The high-speed rotary jaw mechanism, comprising a rack, the rack top is provided with the conductive slip ring connected by dynamic cooperation mechanism;The conductive slip ring is connected with the follow-up shaft of hollow structure, the follow-up shaft is connected with the rack by the upper bearing mounting plate and the lower bearing mounting plate arranged at intervals;The lower bearing mounting plate is provided with the driving gear driven by the first motor, the driving gear is connected with the driven gear arranged at the bottom of follow-up shaft;The inner cavity of follow-up shaft is provided with the second motor electrically connected with the conductive slip ring, the output shaft of the second motor is provided with the straight gear, the straight gear is symmetrically provided with the sliding rack connected with the lower bearing mounting plate on both sides, the sliding rack is respectively provided with a jaw, each jaw is provided with V-shaped claw tooth arranged along vertical direction, and the V-shaped claw tooth on the two jaws is oppositely arranged and staggered.

[0005] The dynamic cooperation mechanism is used for connecting the fixed ring of rack and conductive slip ring, comprising two ear plates symmetrically arranged on the top of the fixed ring, the ear plate extends to the outside of the fixed ring, and an open slot is arranged on the outer edge of each ear plate, the width of the open slot is equal and symmetrically arranged along the radial direction of the fixed ring;It also includes an L-shaped plate arranged on the top of the rack, the top plate of the L-shaped plate is provided with a holding arm extending to the conductive slip ring on both sides, the end of the holding arm is provided with a clamping plate extending vertically upward, the thickness of the clamping plate is equal and less than the width of the open slot, and each clamping plate is inserted into an open slot.

[0006] The follow-up shaft is a variable-diameter shaft, and the top thereof is fixedly connected with the rotating ring of the conductive slip ring.

[0007] The first motor is connected with the lower bearing mounting plate through a mounting frame, and the first motor and the follow-up shaft are parallel to each other.

[0008] The straight gear extends below the lower bearing mounting plate, the sliding rack is connected with a linear guide rail arranged on the lower bearing mounting plate in a sliding mode, and each clamping jaw is connected with the sliding rack through a connecting plate.

[0009] The high-speed rotating clamping jaw mechanism has low cost, ingenious structure and stable operation, can easily clamp small articles such as cotton swabs, realizes automatic centering and firm clamping, can weaken eccentric influence, alleviate adverse phenomena such as body shaking and swinging, realizes high-speed stable rotation of the clamping jaw, and improves the operation stability of the equipment. BRIEF DESCRIPTION OF DRAWINGS

[0010] Figure 1 is a structural schematic view of the utility model.

[0011] Figure 2 is Figure 1 an exploded structural schematic view.

[0012] Figure 3 is Figure 1 a top view. DETAILED DESCRIPTION

[0013] The embodiments of the utility model will be described in detail below with reference to the drawings, the embodiments are implemented on the premise of the technical scheme of the utility model, detailed implementation modes and specific operation processes are given, but the protection scope of the utility model is not limited to the following embodiments.

[0014] As Figures 1-3 shown, the high-speed rotating clamping jaw mechanism comprises a rack 1, the top of the rack 1 is provided with a conductive slip ring 2 connected through a dynamic cooperation mechanism.

[0015] The dynamic cooperation mechanism is used for connecting the frame 1 and the fixed ring 21 of the conductive slip ring 2, and comprises two ear plates 31 symmetrically arranged on the top of the fixed ring 21, each of which extends to the outside of the fixed ring 21, and each of which is provided with an open slot 32 at the outer edge, and the two open slots 32 are equal in width and symmetrically arranged along the fixed ring 21. The dynamic cooperation mechanism further comprises an L-shaped plate 33 arranged on the top of the frame 1, and the two sides of the top plate of the L-shaped plate 33 are provided with arms extending towards the conductive slip ring 2, and the end of each arm is provided with a clamping plate 34 extending vertically upwards, and the thickness of the two clamping plates 34 is equal and smaller than the width of the open slot 32. Therefore, the two clamping plates 34 are respectively inserted into the two open slots 32, and the two form a static non-fixed connection. When the conductive slip ring 2 starts to rotate, the two clamping plates 34 are inclined to the same side of the open slot 32, and as the rotating speed gradually increases, the clamping plate 34 is in close contact with one side of the open slot 32, so that the conductive slip ring 2 and the frame 1 form a floating connection, so that the conductive slip ring 2 and the follow-up shaft 4 connected thereto can realize high-speed stable rotation.

[0016] The follow-up shaft 4 is a variable-diameter hollow shaft, and the top thereof is fixedly connected with the rotating ring 22 of the conductive slip ring 2. The middle part of the follow-up shaft 4 is connected with the frame 1 through the upper bearing mounting plate 5 and the lower bearing mounting plate 6 arranged at intervals, so that large-scale downward swinging can be avoided, and the rotating stability of the follow-up shaft 4 is improved.

[0017] The lower bearing mounting plate 6 is provided with a mounting frame for connecting the first motor 7, and the first motor 7 is parallel to the follow-up shaft 4. The output shaft of the first motor 7 is provided with a driving gear 71, and the bottom of the follow-up shaft 4 is provided with a driven gear 41, and the driving gear 71 and the driven gear 41 are meshed and connected. When the first motor 7 is started, it can drive the follow-up shaft 4 and the second motor 8 mounted in the inner cavity of the follow-up shaft 4 to rotate.

[0018] The second motor 8 is electrically connected with the conductive slip ring 2, and the output shaft thereof is provided with a spur gear 9 extending below the lower bearing mounting plate 6, and the two sides of the spur gear 9 are symmetrically provided with sliding racks 10 connected with the lower bearing mounting plate 6, and each sliding rack 10 is slidably connected with a linear guide rail 11 arranged on the lower bearing mounting plate 6. When the second motor 8 rotates, the two sliding racks 10 move towards each other or away from each other. Each of the sliding racks 10 is provided with a clamping jaw 12, and each of the clamping jaws 12 is provided with V-shaped teeth 121 arranged vertically and spaced apart. When the cotton swab needs to be clamped, the two clamping jaws 12 move towards each other, and as the distance between the clamping jaws 12 decreases, the cotton swab is automatically centered to the center of the V-shaped teeth 121, thereby forming firm clamping of the cotton swab.

[0019] It should be noted that in the description of the utility model, such as "front", "back", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicating the orientation or positional relationship of the terms is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as limiting the utility model.

Claims

1. A high speed rotary gripper mechanism, characterized by: The rack is provided with a conductive slip ring connected by a dynamic fitting mechanism at the top, the conductive slip ring is connected with a follow-up shaft of hollow structure, the follow-up shaft is connected with the rack through the upper bearing mounting plate and the lower bearing mounting plate arranged at intervals, the lower bearing mounting plate is provided with a driving gear driven by a first motor, the driving gear is connected with a driven gear arranged at the bottom of the follow-up shaft, the inner cavity of the follow-up shaft is provided with a second motor electrically connected with the conductive slip ring, the output shaft of the second motor is provided with a spur gear, the spur gear is symmetrically provided with a sliding rack connected with the lower bearing mounting plate at both sides, the sliding rack is respectively provided with a clamping jaw, each clamping jaw is provided with V-shaped teeth arranged along the vertical direction, the V-shaped teeth of the two clamping jaws are oppositely arranged and staggered.

2. The high speed rotary jaw mechanism of claim 1, wherein: The dynamic fitting mechanism is used for connecting the rack and the fixed ring of the conductive slip ring, and includes two ear plates symmetrically arranged at the top of the fixed ring, the ear plates extend to the outside of the fixed ring, and each ear plate is provided with an open slot at the outer edge, the open slots are equal in width and symmetrically arranged along the radial direction of the fixed ring, and the L-shaped plate is arranged at the top of the rack, the top plate of the L-shaped plate is provided with a holding arm extending to the conductive slip ring at both sides, the end of the holding arm is provided with a clamping plate extending vertically upward, the thickness of the clamping plate is equal and smaller than the width of the open slot, and each clamping plate is correspondingly inserted into the open slot.

3. The high speed rotary jaw mechanism of claim 1, wherein: The follow-up shaft is a variable diameter shaft, and the top of the follow-up shaft is fixedly connected with the rotating ring of the conductive slip ring.

4. The high speed rotary jaw mechanism of claim 1, wherein: The first motor is connected with the lower bearing mounting plate through the mounting frame, and the first motor and the follow-up shaft are parallel to each other.

5. The high speed rotary jaw mechanism of claim 1, wherein: The spur gear extends below the lower bearing mounting plate, the sliding rack is connected with the linear guide rail arranged on the lower bearing mounting plate in sliding mode, and each clamping jaw is connected with the sliding rack through the connecting plate.

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