CN219852104U - Connecting device, clamping device and casting system - Google Patents

Abstract

The utility model discloses a connecting device, a clamping device and a casting system, wherein the connecting device comprises a first connecting piece, a second connecting piece and a guide rod. The first connecting piece is used for being connected with the mechanical arm and comprises a sliding part, and the sliding part is provided with a guide hole; the second connecting piece is used for being connected with the clamp; the guide rod comprises a guide part and a first limiting part which are connected with each other, the first limiting part protrudes out of the radial side face of the guide part, the guide part is connected with the second connecting piece and slidably penetrates through the guide hole, and the first limiting part is located on one side of the sliding part, which is away from the second connecting piece, and can be abutted against the surface of the sliding part, which is away from the second connecting piece. The sliding part can move between the first limiting part and the second connecting piece, so that the clamp can move relative to the mechanical arm. Therefore, when casting is performed, after the mold on the clamp is contacted with the casting furnace, the mechanical arm can move a certain distance without causing the casting furnace or the mold to crush. Thereby the precision requirement of the mechanical arm can be reduced.

Description

Connecting device, clamping device and casting system

Technical Field

The utility model relates to the technical field of machining, in particular to a connecting device, a clamping device and a casting system.

Background

In the related art, during casting, a mold is usually clamped by a mechanical arm and communicated with a casting furnace for liquid injection, and the mold needs to be attached to the casting furnace during liquid injection to prevent liquid leakage. Therefore, in the prior art, in order to avoid crushing the mold and the casting furnace, a high-precision mechanical arm is generally required, which results in high cost of the casting system.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, the utility model provides a connecting device which can be used for connecting the mechanical arm and the clamp, so that the clamp can have a certain moving space relative to the mechanical arm, the possibility of crushing a die and a casting furnace is reduced, the precision requirement of the mechanical arm is reduced, and the manufacturing cost of a casting system is reduced.

The utility model further provides a clamping device with the connecting device.

The utility model also provides a casting system with the fixture device.

An embodiment of the connection device according to the first aspect of the present utility model includes: the first connecting piece, the second connecting piece and the guide rod.

The first connecting piece is used for being connected with the mechanical arm and comprises a sliding part, and the sliding part is provided with a guide hole; the second connecting piece is arranged opposite to the first connecting piece and is used for being connected with the clamp; the guide rod comprises a guide part and a first limiting part which are connected with each other, the first limiting part protrudes out of the radial side face of the guide part, the guide part is connected to the second connecting piece and slidably penetrates through the guide hole, and the first limiting part is located on one side, deviating from the second connecting piece, of the sliding part and can be abutted to the surface, deviating from the second connecting piece, of the sliding part.

The connecting device provided by the embodiment of the utility model has at least the following beneficial effects:

since the guide rod is slidably connected to the first connecting member, the first connecting member is movable relative to the second connecting member, i.e. the clamp is movable relative to the robot arm when the connecting device is used for connecting the clamp and the robot arm. Therefore, when casting is performed, after the mold on the clamp is contacted with the casting furnace, the mechanical arm can move a certain distance without causing the casting furnace or the mold to crush. Therefore, the precision requirement of the mechanical arm can be reduced, and the manufacturing cost of the casting system is reduced.

According to some embodiments of the utility model, the first connector further comprises a shaft portion connected to the sliding portion and protruding from a surface of the sliding portion facing away from the second connector, an end of the shaft portion facing away from the sliding portion being used for connecting a mechanical arm;

the connecting device further comprises a guide sleeve, the guide sleeve comprises a sleeve and a limiting plate which are connected with each other, the limiting plate is connected to the first limiting part, and the sleeve is sleeved on the shaft part in a sliding manner.

According to some embodiments of the utility model, the radial side edge of the shaft portion further has a second limiting portion, and the inner wall of the sleeve has a third limiting portion, and the second limiting portion slidably abuts against the third limiting portion to limit the guide sleeve to rotate relative to the first connecting piece.

According to some embodiments of the utility model, the limiting plate is connected to a surface of the limiting portion facing the second connecting member, and the sliding portion is located between the limiting plate and the second connecting member.

According to some embodiments of the utility model, the shaft portion and the sliding portion are of a split structure, a radial side surface of the shaft portion is provided with a flange, the sliding portion is provided with a mounting hole, the shaft portion is inserted into the mounting hole, and the flange abuts against a surface of the sliding portion facing the second connecting piece.

According to some embodiments of the utility model, the radial side of the shaft portion has a flange, the sliding portion has a mounting hole, and the flange abuts against a surface of the sliding portion facing the second connecting member.

According to some embodiments of the utility model, the side surface of the guiding part is further provided with an annular groove, the annular groove is located between the first limiting part and the second connecting piece, the size of the annular groove is larger than the size of the sliding part along the axial direction of the guiding rod, and the minimum distance between the annular groove and the first limiting part is larger than 0.

According to some embodiments of the utility model, the diameter of the sidewall of the annular groove adjacent to the second connector is gradually reduced in the direction from the first connector to the second connector.

According to a second aspect of the utility model, the clamping device comprises a clamp and the connecting device according to the first aspect, wherein the second connecting piece of the connecting device is connected to the clamp.

The clamping device provided by the embodiment of the utility model has at least the following beneficial effects:

with the connecting device according to the embodiment of the first aspect, since the guide rod is slidably connected to the first connecting piece, the first connecting piece can move relative to the second connecting piece, so that the clamp can move relative to the mechanical arm. Thus, the method is applicable to a variety of applications. When clamping device is used for casting system and arm connection, in carrying out the casting in-process, after the mould on the anchor clamps contacts with the casting furnace, the arm can also remove certain distance and can not cause casting furnace or mould to crush. Therefore, the precision requirement of the mechanical arm can be reduced, and the manufacturing cost of the casting system is reduced.

According to a third aspect of the utility model, the casting system comprises a mechanical arm and the clamping device according to the second aspect, wherein the first connecting piece is connected to the mechanical arm.

The casting system according to the embodiment of the utility model has at least the following beneficial effects:

with the clamping device of the embodiment of the second aspect, the clamp is movable relative to the robot arm. Therefore, when casting is performed, after the mold on the jig is in contact with the casting furnace, the robot arm can also move a certain distance without causing crushing of the casting furnace or the mold. Therefore, the precision requirement of the mechanical arm can be reduced, and the manufacturing cost of the casting system is reduced.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The utility model is further described with reference to the accompanying drawings and examples, in which:

FIG. 1 is a schematic view of a connecting device according to an embodiment of the present utility model;

FIG. 2 is another schematic view of FIG. 1;

FIG. 3 is a schematic view of a connecting device according to another embodiment of the present utility model;

FIG. 4 is a schematic cross-sectional view of FIG. 3;

FIG. 5 is a schematic view of the first connector in FIG. 3;

FIG. 6 is a schematic view of the guide sleeve of FIG. 3;

FIG. 7 is an enlarged view of FIG. 4 at A;

FIG. 8 is a schematic cross-sectional view of a connection device according to another embodiment of the present utility model;

fig. 9 is a schematic structural view of a clamping device according to another embodiment of the utility model.

Reference numerals:

a connection device 1000;

the first connector 100, the sliding part 110, the guide hole 111, the mounting hole 112, the shaft part 120, the second limiting part 121, the flange 122 and the avoidance groove 123;

a second connector 200;

the guide rod 300, the guide part 310, the annular groove 311 and the first limiting part 320;

a guide sleeve 400, a limiting plate 410, a sleeve 420 and a third limiting part 421;

a clamp 2000;

a bracket 500;

a first clamping member 600, a first clamping portion 610;

the second clamping member 700, the second clamping portion 710.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

In the description of the present utility model, it should be understood that the direction or positional relationship indicated with respect to the description of the orientation, such as up, down, etc., is based on the direction or positional relationship shown in the drawings, is merely for convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the apparatus or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, plural means two or more. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated. In addition, if "and/or", "and/or" and/or "are used throughout, the meaning includes three parallel schemes, for example," a and/or B ", including a scheme, or B scheme, or a scheme where a and B meet simultaneously. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.

In the description of the present utility model, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present utility model can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.

The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, the utility model provides the connecting device which can be used for connecting the mechanical arm and the clamp, so that the clamp can have a certain moving space relative to the mechanical arm, the possibility of damaging the die and the casting furnace is reduced, the precision requirement of the mechanical arm is reduced, and the manufacturing cost of the casting system is reduced.

Fig. 1 is a schematic structural diagram of a connection device according to an embodiment of the present utility model, fig. 2 is another schematic view of fig. 1, and in combination with fig. 1 and fig. 2, a connection device 1000 according to a first aspect of the present utility model includes: the first connector 100, the second connector 200, and the guide bar 300.

The first connector 100 is used for connecting with a mechanical arm, and the first connector 100 includes a sliding portion 110, where the sliding portion 110 has a guiding hole 111. The second connector 200 is disposed opposite to the first connector 100 for connection with a jig. The guide bar 300 includes a guide portion 310 and a first stopper portion 320 connected to each other, the first stopper portion 320 protruding from a radial side surface of the guide portion 310, and the first stopper portion 320 may be provided as a boss surrounding the side surface of the guide portion 310. One end of the guide portion 310 is connected to the second connector 200 by welding, screwing, or the like, and the other end passes through the guide hole 111 and is capable of sliding along the wall of the guide hole 111. The first limiting portion 320 is located at a side of the sliding portion 110 facing away from the second connector 200, and along a radial direction of the guiding portion 310, a maximum distance from the first limiting portion 320 to an axis of the guiding portion 310 is greater than a radius of the guiding hole 111, so that the first limiting portion 320 can abut against a surface of the sliding portion 110 facing away from the second connector 200, thereby limiting the sliding portion 110 of the first connector 100 between the first limiting portion 320 and the second connector 200.

Specifically, since the guide bar 300 is slidably coupled to the first link 100, the first link 100 can move relative to the second link 200. When the connecting device 1000 of the present embodiment is used to connect a jig and a robot arm, the jig can move relative to the robot arm. When casting is carried out, the mould is transported to the liquid outlet of the casting furnace through the mechanical arm and is contacted with the casting furnace. Because the clamp can move relative to the mechanical arm, after the die on the clamp contacts the casting furnace, the mechanical arm can also move a certain distance without causing the casting furnace or the die to crush. Therefore, when the connecting device 1000 of the present embodiment is used in a casting system, the precision requirement of the mechanical arm can be reduced, so as to reduce the manufacturing cost of the casting system.

It will be appreciated that when the guide bar 300 is in a non-vertical state, the guide bar 300 is also subjected to a certain bending moment, and in order to improve the torsion resistance of the connection device 1000, a plurality of guide bars 300 may be generally provided, but the number of guide bars 300 is limited by the sizes of the first connection member 100 and the second connection member 200, and the number of guide bars 300 is too large, which further complicates the assembly process, and according to this embodiment, the first connection member 100 further includes a shaft portion 120, where the shaft portion 120 is connected to the sliding portion 110, and protrudes from the surface of the sliding portion 110 facing away from the second connection member 200, as shown in fig. 3 and 4, and fig. 3 is a schematic cross-sectional view of another embodiment of the connection device according to the present utility model, and fig. 4 is a schematic cross-sectional view of fig. 3. The end of the shaft portion 120 facing away from the sliding portion 110 is for connecting the robot arm, for example, the shaft portion 120 has a plurality of through holes for connecting with the shaft portion 120 and a flange to connect the robot arm by the flange. The connecting device 1000 further includes a guide sleeve 400, where the guide sleeve 400 includes a sleeve 420 and a limiting plate 410 that are connected to each other, the limiting plate 410 is connected to the first limiting portion 320, and the sleeve 420 is slidably sleeved on the shaft 120. When the guide rod 300 receives a bending moment, a force can be transmitted to the sleeve 420 through the limiting plate 410, and the sleeve 420 abuts against the shaft 120 to resist a part of the bending moment. Thereby reducing the bending moment to which the guide rod 300 is subjected and improving the bending moment resisting capability of the present embodiment. It is possible to prevent the guide rod 300 from being subjected to a large bending moment to ensure the reliability of the connecting device 1000 of the present embodiment. When the connecting device 1000 of the present embodiment is used in a casting system, the positional accuracy of a mold during transportation can be improved.

Similarly, during operation, the guide rod 300 is also subjected to a certain torque, and based on this, referring to fig. 5 and 6, fig. 5 is a schematic structural view of the first connector in fig. 3, fig. 6 is a schematic structural view of the guide sleeve in fig. 3, in some embodiments, the radial side edge of the shaft 120 further has a second limiting portion 121 (as shown in fig. 5), and the inner wall of the sleeve 420 has a third limiting portion 421 (as shown in fig. 6). The second limiting portion 121 is slidably abutted against the third limiting portion 421 to limit the guide sleeve 400 to rotate relative to the first connecting member 100. To resist some of the torque experienced by the coupling device 1000 and thereby reduce the torque experienced by the guide bar 300. The second guiding portion 310 may be configured as an axially extending protruding portion of the outer wall of the shaft portion 120 (as shown in fig. 5), and the third guiding portion 310 may be configured as an axially penetrating recessed portion of the inner wall of the sleeve 420 (as shown in fig. 6). The engagement of the protrusions with the recesses allows the shaft portion 120 and the sleeve 420 to move along the axis while resisting some of the torque experienced by the coupling device 1000. In addition, the second guide portion 310 may be provided as a recess portion of the outer wall of the shaft portion 120, and the third guide portion 310 may be provided as a protrusion portion of the inner wall of the sleeve 420.

Referring to fig. 4, in some embodiments, the limiting plate 410 is connected to a surface of the limiting portion facing the second connecting member 200, and the sliding portion 110 is located between the limiting plate 410 and the second connecting member 200, so that during the axial movement of the sliding portion 110 along the guide rod 300, the sliding portion 110 can abut against the limiting plate 410, so as to increase the stress area of the sliding portion 110, and avoid damage caused by local overstress of the sliding portion 110.

Referring to fig. 4 and 7, fig. 7 is an enlarged view at a in fig. 4, and in some embodiments, the shaft portion 120 and the sliding portion 110 are of a split structure, so that the shaft portion 120 and the sliding portion 110 can be separately processed. On the one hand, the processing efficiency can be improved. On the other hand, the first connector 100 is not required to be formed by a machining manner in which a large piece of material is removed by cutting or milling, etc., so that the manufacturing cost can be saved. It will be appreciated that during the casting process, the shaft 120 is subjected to a force applied by the mechanical arm away from the second connector 200 when the mold is separated from the casting furnace, and thus, in order to avoid the shaft 120 from being separated from the sliding portion 110, in some embodiments, a radial side surface of the shaft 120 has a flange 122 (as shown in fig. 7), the sliding portion 110 further has a mounting hole 112, the shaft 120 is inserted into the mounting hole 112, and the flange 122 abuts against a surface of the limiting plate 410 facing the second connector 200.

Referring to fig. 8, fig. 8 is a schematic cross-sectional view of a connection device according to another embodiment of the present utility model, in some embodiments, the side surface of the guiding portion 310 further has an annular groove 311, the annular groove 311 is located between the first limiting portion 320 and the second connection member 200, the size of the annular groove 311 is larger than the size of the sliding portion 110 along the axial direction of the guiding rod 300, and the minimum distance between the annular groove 311 and the first limiting portion 320 is larger than 0. Therefore, when the connecting device 1000 of the present embodiment is used in a casting system, the robot arm can continue to move a distance to a position corresponding to the annular groove 311 after the mold is in contact with the casting furnace. The annular groove 311 is capable of avoiding the guide bar 300 so that the guide bar 300 can swing somewhat, thereby enabling the second link 200 connected to the guide bar 300 to rotate relative to the first link 100. Specifically, in the contact process of the die and the casting furnace, the die can automatically generate certain pose adjustment under the action of dead weight, so that the die is attached to the surface of the casting furnace without swinging through a mechanical arm, the casting process is simplified, and the working efficiency is improved.

In addition, the minimum distance between the annular groove 311 and the first limiting portion 320 is greater than 0, so as to improve the position accuracy of the mold. Specifically, during the process of separating the mold from the casting furnace, the first connector 100 is moved away from the second connector 200 by the force applied by the mechanical arm, and the sliding portion 110 can be moved to the position of the non-annular groove 311 of the guide bar 300 to reduce the distance between the wall of the guide hole 111 and the outer wall of the guide bar 300, so as to improve the stability of the jig. Similarly, when the connecting device 1000 is further provided with the guide sleeve 400, the minimum distance between the annular groove 311 and the limiting plate 410 is greater than 0, and the annular avoiding groove 123 (as shown in fig. 8) is disposed at the position corresponding to the shaft portion 120 of the first connecting member 100, which is not described herein.

On the basis of the above embodiment, the diameter of the side wall of the annular groove 311, which is close to the second connector 200, is gradually reduced in the direction from the first connector 100 to the second connector 200, so that the sliding portion 110 of the first connector 100 is advantageously moved from the annular groove 311 of the guide rod 300 to a position other than the annular groove 311.

Referring to fig. 9, fig. 9 is a schematic structural diagram of a clamping device according to another embodiment of the present utility model, and the clamping device according to the second aspect includes a clamp 2000 and a connecting device 1000 according to the first aspect, where a second connecting member 200 of the connecting device 1000 is connected to the clamp 2000. The clamp 2000 includes a bracket 500, a first clamp 600 having a first clamp portion 610, and a second clamp 700 having a second clamp portion 710. The first clamping portion 610 and the second clamping portion 710 are used to mount a mold. The first clamping member 600 and the second clamping member 700 are both connected to the bracket 500, the first clamping portion 610 and the second clamping portion 710 are disposed opposite to each other, and at least one of the first clamping member 600 and the second clamping member 700 can reciprocate relative to the bracket 500, so as to realize die opening and die closing of the die. Specifically, since the clamping device of the present embodiment employs the connecting device 1000 of the first aspect embodiment, the connecting device 1000 is used for connecting with a mechanical arm, so that the clamp 2000 can relatively move with respect to the mechanical arm. Thus, the clamp 2000 can move relative to the robotic arm when the clamping device is used to connect the casting system to the robotic arm. When casting is performed, after the mold on the clamp 2000 is in contact with the casting furnace, the mechanical arm can also move a certain distance, and the casting furnace or the mold cannot be crushed. Therefore, the precision requirement of the mechanical arm can be reduced, and the manufacturing cost of the casting system is reduced.

It should be noted that, since the clamping device of the present embodiment adopts all the technical solutions of the connecting device 1000 of the first embodiment, at least all the beneficial effects caused by the technical solutions of the first embodiment are provided, and are not described herein again.

The casting system according to the embodiment of the third aspect comprises a robot arm and the clamping device according to the embodiment of the second aspect, wherein the first connection 100 is connected to the robot arm. In particular, since the casting system employs the clamping device of the second aspect embodiment, the clamp 2000 is movable relative to the robotic arm. Therefore, when casting is performed, after the mold on the clamp 2000 is in contact with the casting furnace, the mechanical arm can also move a certain distance without causing the casting furnace or the mold to crush. Therefore, the precision requirement of the mechanical arm can be reduced, and the manufacturing cost of the casting system is reduced.

The embodiments of the present utility model have been described in detail with reference to the accompanying drawings, but the present utility model is not limited to the above embodiments, and various changes can be made within the knowledge of one of ordinary skill in the art without departing from the spirit of the present utility model.

Claims (10)

1. A connection device, comprising:

the first connecting piece is used for being connected with the mechanical arm and comprises a sliding part, and the sliding part is provided with a guide hole;

the second connecting piece is arranged opposite to the first connecting piece and is used for being connected with the clamp;

the guide rod comprises a guide part and a first limiting part which are connected with each other, the first limiting part protrudes out of the radial side face of the guide part, the guide part is connected to the second connecting piece and slidably penetrates through the guide hole, and the first limiting part is positioned on one side of the sliding part, which is away from the second connecting piece, and can be propped against the surface of the sliding part, which is away from the second connecting piece.

2. The connection device according to claim 1, wherein the first connection member further includes a shaft portion that is connected to the sliding portion and protrudes from a surface of the sliding portion facing away from the second connection member, and an end of the shaft portion facing away from the sliding portion is used for connection with a robot arm;

the connecting device further comprises a guide sleeve, the guide sleeve comprises a sleeve and a limiting plate which are connected with each other, the limiting plate is connected to the first limiting part, and the sleeve is sleeved on the shaft part in a sliding manner.

3. The connection device of claim 2, wherein the radial side of the shaft portion further has a second limit portion, the inner wall of the sleeve has a third limit portion, and the second limit portion slidably abuts the third limit portion.

4. The connection device according to claim 2, wherein the limiting plate is connected to a surface of the limiting portion facing the second connection member, and the sliding portion is located between the limiting plate and the second connection member.

5. The connection device according to claim 2, wherein the shaft portion and the sliding portion are of a split structure, the sliding portion having a mounting hole, the shaft portion being inserted into the mounting hole.

6. The connection device according to claim 5, wherein a radial side surface of the shaft portion has a flange that abuts against a surface of the sliding portion that faces the second connection member.

7. The connection device according to any one of claims 1 to 6, wherein the side surface of the guide portion further has an annular groove located between the first limit portion and the second connection member, the annular groove being larger in size than the sliding portion in the axial direction of the guide rod, and a minimum distance of the annular groove from the first limit portion being larger than 0.

8. The connection device of claim 7, wherein a diameter of a sidewall of the annular groove adjacent to the second connection member is gradually reduced in a direction from the first connection member to the second connection member.

9. Clamping device, its characterized in that includes:

a clamp;

the connection device as claimed in any one of claims 1 to 8, the second connector being connected to the clamp.

10. A casting system, comprising:

a mechanical arm;

the clamping device of claim 9, the first connector being coupled to the robotic arm.