CN209850429U

CN209850429U - Bidirectional pressing mechanism

Info

Publication number: CN209850429U
Application number: CN201920584008.5U
Authority: CN
Inventors: 涂军
Original assignee: WUHAN BOAOSI PRECISION AUTOMATION Co Ltd
Current assignee: WUHAN BOAOSI PRECISION AUTOMATION Co Ltd
Priority date: 2019-04-24
Filing date: 2019-04-24
Publication date: 2019-12-27
Anticipated expiration: 2029-04-24

Abstract

The utility model discloses a two-way hold-down mechanism relates to machining technical field, and this two-way hold-down mechanism includes: drive assembly, two sets of drive assembly, mount pad, two sets of pressure arms and supporting seat, drive assembly and two sets of drive assembly is the built-up mounting respectively in the upper and lower both ends of mount pad, wherein, two sets of drive assembly respectively with the drive assembly transmission is connected, drive assembly runs through the mount pad sets up, drive assembly swing joint is in on the mount pad, drive assembly's bottom is fixed to be set up on the supporting seat, it is two sets of drive assembly's upper end corresponds fixedly to be provided with two sets of pressure arms. Two-way hold-down mechanism simple structure is compact, not only greatly reduced space occupancy, higher work efficiency has moreover, has improved simultaneously and has pressed from both sides tight precision and stability.

Description

Bidirectional pressing mechanism

Technical Field

The utility model relates to the technical field of machining, especially, relate to a two-way hold-down mechanism.

Background

In the field of machining, a clamp is an auxiliary device with a very wide application range, in each program in the machining process, in order to keep the precision of a workpiece to be machined in the machining process, the position needs to be kept fixed, and the clamp is used for maintaining the positioning of the workpiece to be machined through a limiting effect, so that the workpiece to be machined can be machined normally.

In the process of implementing the present invention, the inventor finds that there are at least the following problems in the prior art: current work piece hold-down mechanism adopts rotary clamping cylinder or single cylinder to press from both sides tightly usually, can only realize compressing tightly the location of one side part in proper order, if need compress tightly the location to two-way part realization then corresponding needs two sets of devices, not only occupy bulky, need provide rotatory space, have narrow and small space moreover and be difficult to place and heterotypic part shortcoming such as interfere easily.

SUMMERY OF THE UTILITY MODEL

In order to overcome the not enough of relevant product among the prior art, the utility model provides a two-way hold-down mechanism solves current hold-down mechanism and can only unilateral compress tightly and the big problem of occupation space.

The utility model provides a two-way hold-down mechanism, include: the device comprises a driving assembly, two groups of transmission assemblies, a mounting seat, two groups of pressure arms and a supporting seat, wherein the driving assembly and the two groups of transmission assemblies are respectively assembled and mounted at the upper end and the lower end of the mounting seat, the two groups of transmission assemblies are respectively in transmission connection with the driving assembly, the driving assembly penetrates through the mounting seat, the transmission assemblies are movably connected onto the mounting seat, the bottom of the driving assembly is fixedly arranged on the supporting seat, and the two groups of pressure arms are correspondingly and fixedly arranged at the upper ends of the two groups of transmission assemblies; the driving components respectively drive the two groups of transmission components to rotate reversely relative to the mounting base through transmission, and the transmission components correspondingly drive the pressure arms to compress or release.

The utility model discloses an in some embodiments, the upper end of mount pad is provided with the mounting groove, the inner wall symmetry of mounting groove both sides is provided with the shaft hole, drive assembly sets up the position corresponding to the shaft hole in the mounting groove.

The utility model discloses an in some embodiments, drive assembly is including driving actuating cylinder, connector and rack, it is in to drive actuating cylinder setting the bottom of mount pad, the output that drives actuating cylinder runs through the mount pad extends to in the mounting groove, it is provided with to drive fixedly on actuating cylinder's the output the connector, the connector pass through the rack connecting axle with rack connection, it drives actuating cylinder drive rack up-and-down motion.

The utility model discloses an in some embodiments, the both ends that drive actuating cylinder are provided with the mounting hole that runs through respectively, it wears to establish to drive actuating cylinder through the bolt the mounting hole is pegged graft respectively on mount pad and the supporting seat.

The utility model discloses an in some embodiments, drive assembly includes integrated into one piece's gear and connecting block, the connecting block sets up on a side end face of gear, the axle center position of gear is pegged graft through the rotation axis and is in the shaft hole in the mounting groove, the gear with the rotation axis key-type connection, just the gear with rack toothing, drive during the rack up-and-down motion the gear with the rotation axis rotates as the axle center, the connecting block drives the swing of pressure arm.

In some embodiments of the present invention, the pressing arm includes a pressing rod and a pressing head, the pressing rod is fixedly connected to the connecting block, and the pressing head is fixedly disposed at an end of the pressing rod.

Compared with the prior art, the utility model discloses there is following advantage:

two-way hold-down mechanism is provided with two sets of pressure arms and drive mechanism, drives rack up-and-down motion through driving actuating cylinder to drive two sets of drive mechanism antiport respectively, and then drive the pressure arm that corresponds and reverse the pushing down, thereby realize that a set of power unit can realize two-way compressing tightly, simple structure is compact, not only greatly reduced the space occupancy, higher work efficiency has moreover, has improved simultaneously and has pressed from both sides tight precision and stability.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

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

fig. 2 is an explosion diagram of the bidirectional pressing mechanism of the present invention.

Description of reference numerals:

1-driving component, 2-transmission component, 3-mounting seat, 4-pressing arm, 5-supporting seat, 11-driving cylinder, 12-connecting head, 13-rack, 14-rack connecting shaft, 15-mounting hole, 21-gear, 22-connecting block, 23-rotating shaft, 31-mounting groove, 32-shaft hole, 41-pressing rod and 42-pressing head.

Detailed Description

In order to make the technical field person understand the scheme of the present invention better, the following will combine the drawings in the embodiments of the present invention to clearly and completely describe the technical scheme in the embodiments of the present invention. It is to be understood that the embodiments described are merely exemplary of the invention, and that no limitations are intended to the details of construction or design herein shown. The present invention may be embodied in many different forms and is not limited to the embodiments described herein, which are provided for the purpose of providing a more thorough understanding of the present disclosure.

Fig. 1 is a schematic structural diagram of the bidirectional pressing mechanism of the present invention, referring to fig. 1, the bidirectional pressing mechanism includes a driving assembly 1, two sets of transmission assemblies 2, a mounting seat 3, two sets of pressing arms 4 and a supporting seat 5, the driving assembly 1 and the two sets of transmission assemblies 2 are respectively assembled and mounted at the upper and lower ends of the mounting seat 3, wherein the two sets of transmission assemblies 2 are respectively in transmission connection with the driving assembly 1, the driving assembly 1 penetrates through the mounting seat 3, the transmission assemblies 2 are movably connected to the mounting seat 3, the bottom of the driving assembly 1 is fixedly disposed on the supporting seat 5, and the upper ends of the two sets of transmission assemblies 2 are correspondingly and fixedly disposed with the two sets of pressing arms 4; the driving component 1 drives two sets of the driving components 2 to rotate reversely relative to the mounting base 3 through a transmission effect, and the driving components 2 correspondingly drive the pressure arms 4 to compress or release.

Fig. 2 is an explosion schematic diagram of the bidirectional pressing mechanism of the present invention, and referring to fig. 2, the upper end of the mounting seat 3 is provided with a mounting groove 31, the inner walls of both sides of the mounting groove 31 are symmetrically provided with a shaft hole 32, and the transmission assembly 2 is disposed in the mounting groove 31 corresponding to the position of the shaft hole 32.

The driving assembly 1 comprises a driving cylinder 11, a connector 12 and a rack 13, the driving cylinder 11 is arranged at the bottom of the mounting seat 3, the output end of the driving cylinder 11 penetrates through the mounting seat 3 and extends into the mounting groove 31, the connector 12 is fixedly arranged at the output end of the driving cylinder 11, the connector 12 is connected with the rack 13 through a rack connecting shaft 14, and the driving cylinder 11 drives the rack 13 to move up and down; the two ends of the driving cylinder 11 are respectively provided with a through mounting hole 15, and the driving cylinder 11 is inserted into the mounting holes 15 through bolts and is respectively inserted into the mounting seat 3 and the supporting seat 5.

The transmission assembly 2 comprises a gear 21 and a connecting block 22 which are integrally formed, the connecting block 22 is arranged on one side end face of the gear 21, the axis position of the gear 21 is inserted into the shaft hole 32 in the mounting groove 31 through a rotating shaft 23, the gear 21 is connected with the rotating shaft 23 in a key mode, the gear 21 is meshed with the rack 13, the rack 13 drives the gear 21 to rotate by taking the rotating shaft 23 as the axis when moving up and down, and the connecting block 22 drives the pressing arm 4 to swing.

The pressure arm 4 includes depression bar 41 and pressure head 42, depression bar 41 with connecting block 22 fixed connection, pressure head 42 is fixed to be set up the tip of depression bar 41, pressure head 42 is flexible material, and direct contact work piece leads to damaging when avoiding pushing down.

Two-way hold-down mechanism is provided with two sets of pressure arms 4 and drive mechanism, drives rack 13 up-and-down motion through driving actuating cylinder 11 to drive two sets of drive mechanism antiport respectively, and then drive the pressure arm 4 that corresponds and reverse the pushing down, thereby realize that a set of power unit can realize two-way compressing tightly, simple structure is compact, not only greatly reduced the space occupancy, higher work efficiency has moreover, has improved simultaneously and has pressed from both sides tight precision and stability.

Those not described in detail in this specification are within the skill of the art. Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing detailed description, or equivalent replacements may be made for some of the technical features of the embodiments. All utilize the equivalent structure that the content of the utility model discloses a specification and attached drawing was done, direct or indirect application is in other relevant technical field, all is in the same way the utility model discloses within the patent protection scope.

Claims

1. A bi-directional hold down mechanism, comprising: the device comprises a driving assembly, two groups of transmission assemblies, a mounting seat, two groups of pressure arms and a supporting seat, wherein the driving assembly and the two groups of transmission assemblies are respectively assembled and mounted at the upper end and the lower end of the mounting seat, the two groups of transmission assemblies are respectively in transmission connection with the driving assembly, the driving assembly penetrates through the mounting seat, the transmission assemblies are movably connected onto the mounting seat, the bottom of the driving assembly is fixedly arranged on the supporting seat, and the two groups of pressure arms are correspondingly and fixedly arranged at the upper ends of the two groups of transmission assemblies; the driving components respectively drive the two groups of transmission components to rotate reversely relative to the mounting base through transmission, and the transmission components correspondingly drive the pressure arms to compress or release.

2. The bi-directional hold down mechanism of claim 1, wherein: the upper end of mount pad is provided with the mounting groove, the inner wall symmetry of mounting groove both sides is provided with the shaft hole, drive assembly sets up the position corresponding to the shaft hole in the mounting groove.

3. The bi-directional hold down mechanism of claim 2, wherein: the drive assembly is including driving actuating cylinder, connector and rack, it is in to drive the actuating cylinder setting the bottom of mount pad, the output that drives actuating cylinder runs through the mount pad extends to in the mounting groove, it is provided with to drive fixedly on actuating cylinder's the output the connector, the connector pass through the rack connecting axle with the rack connection, it drives actuating cylinder drives rack up-and-down motion.

4. The bi-directional hold down mechanism of claim 3, wherein: the two ends of the driving cylinder are respectively provided with a through mounting hole, and the driving cylinder penetrates through the mounting holes to be respectively inserted into the mounting seat and the supporting seat.

5. The bi-directional hold down mechanism of claim 3, wherein: the transmission assembly comprises an integrally formed gear and a connecting block, the connecting block is arranged on one side end face of the gear, the axis position of the gear is inserted into the shaft hole in the mounting groove through a rotating shaft, the gear is connected with the rotating shaft in a key mode, the gear is meshed with the rack, the rack drives the gear to rotate by taking the rotating shaft as the axis when moving up and down, and the connecting block drives the pressing arm to swing.

6. The bi-directional hold down mechanism of claim 5, wherein: the pressure arm comprises a pressure rod and a pressure head, the pressure rod is fixedly connected with the connecting block, and the pressure head is fixedly arranged at the end part of the pressure rod.