CN215239286U

CN215239286U - Workbench exchanging mechanism

Info

Publication number: CN215239286U
Application number: CN202121714782.7U
Authority: CN
Inventors: 侯子龙
Original assignee: Suzhou Tongyu Machine & Tool Co ltd
Current assignee: Suzhou Tongyu Machine & Tool Co ltd
Priority date: 2021-07-27
Filing date: 2021-07-27
Publication date: 2021-12-21
Anticipated expiration: 2031-07-27

Abstract

The utility model discloses a workstation exchange mechanism contains: a mounting seat; the first cylinder body is arranged on the mounting seat and is provided with a first inner cavity, one end of the first cylinder body is provided with a first window, the other end of the first cylinder body is provided with a first oil inlet and outlet, and a first piston rod is arranged in the first inner cavity; the second cylinder body is arranged on the mounting seat and provided with a second inner cavity, one end of the second cylinder body is provided with a second window, the second window and the first window are arranged in opposite directions, a preset distance is reserved between the second window and the first window, the other end of the second cylinder body is provided with a second oil inlet and outlet, and a second piston rod is arranged in the second inner cavity; one end of the rack extends into the first inner cavity from the first window, the other end of the rack extends into the second inner cavity from the second window, and the first piston rod and the second piston rod are respectively positioned at two ends of the rack; a gear positioned between the second and first windows to engage the rack; the dabber, it is connected with the gear, and it is used for bearing a plurality of workstations, and it can rotate under the gear drive to drive a plurality of workstations and rotate. This scheme ensures that the workstation is accurate, stable rotation.

Description

Workbench exchanging mechanism

Technical Field

The utility model relates to a lathe field, specific is a workstation exchange mechanism.

Background

The machine tool with the workbench exchange function is widely applied due to the advantages of high effective utilization rate of the machine tool, low production cost and the like.

Particularly, a plurality of working tables can be arranged on the machine tool with the working table exchange function, when the workpiece needs to be fed or discharged, the working table A and the workpiece clamped on the working table A can be fed to a processing station together, and meanwhile, the working table B and the workpiece clamped on the working table B are discharged from the processing station. Therefore, the waiting time of the machining station can be reduced, and the utilization rate of the machine tool is improved. In practical applications, how to simplify the exchange process (or exchange stroke) of the worktable and ensure that the worktable can accurately and stably move to the preset position during the exchange process is a problem that those skilled in the art continuously aim to solve.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects in the prior art, the embodiment of the utility model provides a workstation exchange mechanism, it is used for solving at least one in the above-mentioned problem.

The embodiment of the application discloses: a workbench exchange mechanism comprising:

a mounting seat;

the first cylinder body is arranged on the mounting seat and provided with a first inner cavity, one end of the first cylinder body is provided with a first window, the other end of the first cylinder body is provided with a first oil inlet and outlet, and a first piston rod is arranged in the first inner cavity;

the second cylinder body is arranged on the mounting seat, the second cylinder body is provided with a second inner cavity, one end of the second cylinder body is provided with a second window, the second window and the first window are oppositely arranged, a preset distance is reserved between the second window and the first window, the other end of the second cylinder body is provided with a second oil inlet and outlet, and a second piston rod is arranged in the second inner cavity;

one end of the rack extends into the first inner cavity from the first window, the other end of the rack extends into the second inner cavity from the second window, the first piston rod is located at one end of the rack, and the second piston rod is located at the other end of the rack;

a gear located between the second window and the first window to engage with the rack;

the mandrel is connected with the gear and used for bearing a plurality of working tables, and the mandrel can be driven by the gear to rotate so as to drive the working tables to rotate.

Specifically, the mounting seat has a third inner cavity, the end of the first cylinder body having the first window and the end of the second cylinder body having the second window are respectively inserted into the third inner cavity, and the third inner cavity has a third window for the rack to mesh with the gear.

Specifically, the mounting seat is provided with a fourth inner cavity for accommodating the gear, and the fourth inner cavity is provided with a fourth window for communicating with the third inner cavity.

Specifically, the mandrel is fixedly connected with the gear.

Specifically, the dabber with gear swing joint, the dabber wears to establish in the gear, the inner wall of gear has a plurality of bellyings, be equipped with on the outer wall of dabber a plurality of be used for with a plurality of bellyings one-to-one's recess.

Specifically, the rack comprises a main body, a first connecting portion and a second connecting portion, the first connecting portion is arranged at one end of the main body, the second connecting portion is arranged at the other end of the main body, a tooth portion meshed with the gear is arranged on the main body, the first connecting portion is used for being connected with the first piston rod, and the second connecting portion is used for being connected with the second piston rod.

In particular, when the first piston rod is moved to a first extreme position towards the second piston rod, the first piston rod is fully located in the first inner cavity.

In particular, when the second piston rod is moved towards the first piston rod to a second extreme position, the second piston rod is fully located in the second inner cavity.

The utility model discloses following beneficial effect has at least:

1. the rack is adopted to drive the gear to rotate, and then the workbench is driven to rotate, and the meshing of the tooth parts has high precision, so that the workbench exchange mechanism of the embodiment can accurately rotate the workbench to the preset position.

2. The workbench exchange mechanism of the embodiment can convert simple linear motion into rotary motion by adopting a mode that the first cylinder body and the second cylinder body drive linear rack motion to drive the gear to rotate, so that the action of the workbench exchange mechanism is simplified, and in addition, the oil pressure of the oil pressure cylinder can ensure that the driving force of the rack motion is strong and stable enough.

3. The workbench exchanging mechanism of the embodiment can ensure that the workbench moves with good stability.

In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.

Drawings

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

FIG. 1 is a schematic perspective view of a switching mechanism of a workbench according to an embodiment of the present invention;

FIG. 2 is a front view of the table exchange mechanism in an embodiment of the present invention;

fig. 3 is a cross-sectional view at a-a in fig. 2.

Reference numerals of the above figures: 1. a mounting seat; 2. a first cylinder; 21. a first oil inlet and outlet; 22. a first piston rod; 3. A second cylinder; 31. a second oil inlet and outlet; 32. a second piston rod; 41. a main body; 42. a first connection portion; 43. a second connecting portion; 5. a gear; 6. and (3) a mandrel.

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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The workbench exchange mechanism of the embodiment can be used for installing a plurality of workbenches, and the exchange mechanism can realize the switching of the workbenches on the machine tool among different stations.

As shown in fig. 1 to 3, the table exchange mechanism of the present embodiment includes: the cylinder comprises a mounting seat 1, a first cylinder body 2, a second cylinder body 3, a rack, a gear 5 and a mandrel 6. The mounting seat 1 is used for mounting and fixing the first cylinder 2 and the second cylinder 3 so as to improve the overall stability of the exchange mechanism; the first cylinder body 2 is provided with a first inner cavity, one end of the first cylinder body 2 is provided with a first window, the other end of the first cylinder body 2 is provided with a first oil inlet/outlet 21, and a first piston rod 22 is arranged in the first inner cavity; the second cylinder 3 has a second inner cavity, one end of the second cylinder 3 is provided with a second window, the second window and the first window are oppositely arranged, and a preset distance is arranged between the second window and the first window, in other words, the second window and the first window are spaced and are not contacted, so that at least part of the rack is arranged outside the first inner cavity and the second inner cavity to be meshed with the gear 5, the other end of the second cylinder 3 is provided with a second oil inlet and outlet 31, and a second piston rod 32 is arranged in the second inner cavity. One end of the rack extends into the first inner cavity from the first window to be connected with the first cylinder body 2, the other end of the rack extends into the second inner cavity from the second window to be connected with the second cylinder body 3, the first piston rod 22 is connected with one end of the rack extending into the first inner cavity, and the second piston rod 32 is connected with the other end of the rack extending into the second inner cavity. The gear 5 is located between the second window and the first window to mesh with the rack, the mandrel 6 is connected with the gear 5, the mandrel 6 is used for bearing a plurality of working tables (a substantially horizontally arranged rotating arm can be arranged on the mandrel 6, the rotating arm can bear the plurality of working tables), and the mandrel 6 can be driven by the gear 5 to rotate so as to drive the plurality of working tables to rotate. The first cylinder 2 and the second cylinder 3 may be hydraulic cylinders.

The working principle of the structure is as follows: when the first exchange of the workbench is needed to be realized, oil can be injected into the first inner cavity of the first cylinder body 2 through the first oil inlet/outlet 21, and the first piston rod 22 pushes the rack to move towards the second inner cavity under the action of oil pressure, so that the gear 5 meshed with the rack can rotate, thereby driving the mandrel 6 to rotate and further driving the workbench to rotate; when the second exchange of the workbench is needed to be realized, oil can be injected into the second inner cavity of the second cylinder 3 through the second oil inlet/outlet 31, and under the action of oil pressure, the second piston rod 32 pushes the rack to move towards the first inner cavity, so that the gear 5 meshed with the rack rotates in the direction opposite to the first direction, and further the workbench is driven to rotate reversely, so that the workbench is switched between the processing station and the workpiece loading and unloading station.

By the above structure, the workbench exchanging mechanism of the embodiment has the following advantages:

1. the rack is adopted to drive the gear 5 to rotate, so that the workbench is driven to rotate, and the meshing of the tooth parts has high precision, so that the workbench exchange mechanism of the embodiment can accurately rotate the workbench to the preset position.

2. The workbench exchange mechanism of the embodiment can convert simple linear motion into rotary motion by adopting the way that the first cylinder body 2 and the second cylinder body 3 drive linear rack motion to drive the gear 5 to rotate, thereby simplifying the action of the workbench exchange mechanism, and in addition, the oil pressure of the oil pressure cylinder can ensure that the driving force of the rack motion is strong and stable enough.

Specifically, as shown in fig. 1 and 3, the mounting seat 1 of the present embodiment may be provided with a third inner cavity, an end of the first cylinder 2 having the first window is inserted into the third inner cavity, an end of the second cylinder 3 having the second window is inserted into the third inner cavity, and the third inner cavity has a third window for allowing the rack to be engaged with the gear 5, in other words, the third inner cavity has a third window for allowing at least a portion of the rack to be exposed outside the third inner cavity, so that the rack is engaged with the gear 5 through the third window. The first, second and third lumens are substantially cylindrical. Further, the mounting base 1 can also be provided with a fourth inner cavity for accommodating the gear 5, the fourth inner cavity is provided with a fourth window for communicating with the third inner cavity, and the fourth window is correspondingly matched with the third window. Adopt above-mentioned scheme, be favorable to improving the area of contact when first cylinder body 2, second cylinder body 3 and mount pad 1 are connected to improve the stability of rack motion under the oil pressure drive.

In particular, the spindle 6 of the present embodiment may be fixedly connected to the gear 5, and this connection manner may ensure the stability of the connection and the synchronization of the movement. The mandrel 6 may further be movably connected to the gear 5, specifically, when the mandrel 6 needs to move along the axial direction relative to the gear 5, the mandrel 6 may not be movably connected to the gear 5, as shown in fig. 3, in order to ensure the synchronism of the movement of the mandrel 6 and the gear 5, the mandrel 6 may be inserted into the gear 5, the inner wall of the gear 5 may be provided with a plurality of protrusions (not shown in the figure), the outer wall of the mandrel 6 may be correspondingly provided with a plurality of grooves (not shown in the figure), and the plurality of protrusions and the plurality of grooves are in one-to-one correspondence.

Specifically, as shown in fig. 3, the rack of the present embodiment may include a main body 41, a first connecting portion 42 disposed at one end of the main body 41, and a second connecting portion 43 disposed at the other end of the main body 41, wherein a tooth portion for engaging with the gear 5 is disposed on the main body 41, the first connecting portion 42 is used for connecting with the first piston rod 22, and the second connecting portion 43 is used for connecting with the second piston rod 32. Preferably, the main body 41 of the rack (excluding the portion of the tooth portion) may also be substantially cylindrical, so as to increase the guiding area of the first inner cavity, the second inner cavity and the third inner cavity to the rack, and further improve the stability of the rack movement.

Specifically, as shown in fig. 3, in order to improve the sealing performance of the table exchange mechanism of the present embodiment, when the first piston rod 22 moves toward the second piston rod 32 to the first limit position, the first piston rod 22 is completely located in the first inner cavity, and when the second piston rod 32 moves toward the first piston rod 22 to the second limit position, the second piston rod 32 is completely located in the second inner cavity. Specifically, when the first piston rod 22 pushes the rack to move to the first limit position toward the second piston rod 32, the first piston rod 22 does not move to the first window of the first inner cavity, and when the second piston rod 32 pushes the rack to move to the second limit position toward the first piston rod 22, the second piston rod 32 does not move to the second window of the second inner cavity, so that the first piston rod 22 can be prevented from being separated from the first inner cavity or the second piston rod 32 can be prevented from being separated from the second inner cavity, and further, the oil in the first inner cavity or the second inner cavity can be prevented from leaking outwards.

The present invention has been explained by using specific embodiments, and the explanation of the above embodiments is only used to help understand the method and the core idea of the present invention; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the specific implementation and application scope, to sum up, the content of the present specification should not be understood as the limitation of the present invention.

Claims

1. A workbench exchange mechanism, comprising:

a mounting seat;

2. The table exchange mechanism of claim 1, wherein the mounting block has a third internal cavity, the end of the first cylinder having the first window and the end of the second cylinder having the second window are respectively disposed through the third internal cavity, and the third internal cavity has a third window for engaging the rack with the gear.

3. The table exchange mechanism of claim 2, wherein the mounting block has a fourth interior cavity for receiving the gear, the fourth interior cavity having a fourth window for communicating with the third interior cavity.

4. The table exchange mechanism of claim 1, wherein the spindle is fixedly connected to the gear.

5. The workbench exchange mechanism of claim 1, wherein the spindle is movably connected with the gear, the spindle is inserted into the gear, the inner wall of the gear has a plurality of protrusions, and the outer wall of the spindle is provided with a plurality of grooves corresponding to the plurality of protrusions one to one.

6. The table exchange mechanism of claim 1, wherein the rack comprises a body, a first connecting portion disposed at one end of the body, and a second connecting portion disposed at the other end of the body, wherein the body is provided with a tooth portion for engaging with the gear, the first connecting portion is configured to be connected to the first piston rod, and the second connecting portion is configured to be connected to the second piston rod.

7. The table exchange mechanism of claim 1, wherein the first piston rod is fully located in the first internal cavity when the first piston rod is moved to a first extreme position toward the second piston rod.

8. The table exchange mechanism of claim 1, wherein the second piston rod is fully located in the second internal cavity when the second piston rod is moved to a second extreme position toward the first piston rod.