CN218109640U

CN218109640U - Locating pin telescoping device

Info

Publication number: CN218109640U
Application number: CN202222566900.5U
Authority: CN
Inventors: 蔡小认; 张小时; 孟辉; 罗永前; 郭敬; 林涛; 朱振友
Original assignee: Jiangsu Beiren Intelligent Manufacturing Technology Co ltd
Current assignee: Jiangsu Beiren Intelligent Manufacturing Technology Co ltd
Priority date: 2022-09-27
Filing date: 2022-09-27
Publication date: 2022-12-23
Anticipated expiration: 2032-09-27

Abstract

The utility model provides a locating pin telescoping device, including the cylinder, with the fixed lifting impact bar that links to each other of cylinder, with the telescopic link that links to each other of impact bar and install in the locating pin on telescopic link top, the bottom and the top of impact bar are connected respectively cylinder and telescopic link, the impact bar is equipped with one and goes up the convex part, convex part and connect the body of rod of upper convex part and lower convex part, go up convex part and body of rod card and hold in can drive the telescopic link downwards when the impact bar descends in the telescopic link, lower convex part expose in can upwards promote the telescopic link when the impact bar rises outside the telescopic link. Compared with the prior art, the utility model discloses an impact bar drive telescopic link carries out concertina movement to promote the locating pin and act on the work piece or borrow the impact force that produces when the impact bar withdraws and drive the locating pin and break away from the work piece and need not artificial interference, make the locating pin extract from the work piece of deformation more swiftly, improved production efficiency greatly and guaranteed positioning accuracy.

Description

Locating pin telescoping device

Technical Field

The utility model relates to the field of machining, especially, relate to a locating pin telescoping device.

Background

In machining, a workpiece to be machined is generally required to be positioned and then machined (e.g., welded), the workpiece can be stably and reliably fixed on a workbench by the positioning operation, so as to facilitate subsequent machining, and positioning is generally achieved by using a positioning device to cooperate with a positioning hole on the workpiece during positioning, for example, the positioning device drives a positioning pin to extend into the positioning hole of the workpiece to achieve position positioning of the workpiece. In terms of arc welding technology, the automation degree of arc welding is higher and higher at present, and the requirement of people on welding efficiency is higher and higher, and a positioning device can be used for repeatedly and accurately placing a workpiece on a preset position, so as to improve the welding efficiency, but at the same time, the positioning device can influence the welding efficiency.

SUMMERY OF THE UTILITY MODEL

The utility model provides a technical problem provide a locating pin telescoping device to improve not good, the not good problem of positioning accuracy of production efficiency among the prior art.

In order to solve the technical problem, the utility model adopts the following technical scheme: the utility model provides a locating pin telescoping device, includes the cylinder, with the fixed lifting impact rod that links to each other of cylinder, with the telescopic link that the impact rod links to each other and install the locating pin on the telescopic link top, the bottom and the top of impact rod are connected respectively cylinder and telescopic link, impact the rod and be equipped with one and go up the convex part, convex part and the body of rod of connecting convex part down, go up the convex part and the body of rod card and hold in can drive the telescopic link downwards when the impact rod descends in the telescopic link, lower convex part expose in outside the telescopic link and can upwards promote the telescopic link when the impact rod rises.

Furthermore, the upper convex part, the rod body and the lower convex part form an I-shaped structure, the impact rod is also provided with an installation head positioned below the lower convex part, and the installation head is fixedly connected with the cylinder.

Furthermore, the telescopic rod is provided with a clamping groove for accommodating the upper convex part; in the length direction of the clamping groove, the size of the clamping groove is larger than that of the upper convex part, so that the upper convex part can reciprocate in the clamping groove.

Furthermore, the clamping groove penetrates through the bottom end of the telescopic rod downwards, a bayonet for accommodating the rod body is formed at the bottom end, and the width of the bayonet is smaller than the widths of the upper convex part and the lower convex part.

Further, the orientation of bayonet socket with the orientation of draw-in groove is the same, just the bayonet socket is the U type.

Furthermore, the telescopic rod is also provided with a chute opening, the chute opening is formed in the back side of the clamping groove, the chute opening is in a long strip shape and extends along the length direction of the telescopic rod, and a partition wall is arranged between the chute opening and the clamping groove.

Furthermore, the locating pin telescoping device still includes a stopping round pin, the protruding income of one end of stopping round pin the spout mouth of telescopic link to the flexible scope of restriction telescopic link.

Furthermore, the positioning pin telescoping device further comprises a shell and a bushing, the impact rod and the bushing are contained in the shell, the bottom end of the telescopic rod is contained in the shell, the top end of the telescopic rod protrudes out of the shell, and the bushing ring surrounds the periphery of the telescopic rod and is arranged between the shell and the telescopic rod.

Furthermore, the cylinder comprises a cylinder body and a guide rod extending out of the cylinder body, the guide rod protrudes upwards into the shell, and the top end of the guide rod is fixedly connected with the bottom end of the impact rod.

Furthermore, the shell is provided with a positioning hole and a plurality of adjusting holes arranged in the vertical direction, and the positioning hole is communicated with the telescopic rod inwards.

Compared with the prior art, the utility model discloses an impact bar drive telescopic link carries out concertina movement to promote the locating pin and act on the work piece or borrow the impact force that produces when the impact bar withdraws and drive the locating pin and break away from the work piece and need not artificial interference, make the locating pin extract from the work piece of deformation more swiftly, improved production efficiency greatly and guaranteed positioning accuracy.

Drawings

Fig. 1 is a three-dimensional combination view of the positioning pin telescoping device of the present invention.

Fig. 2 is a perspective exploded view of the positioning pin telescoping device of the present invention.

Fig. 3 is an internal sectional view of the positioning pin telescoping device of the present invention.

Fig. 4 is the schematic view of the telescopic rod and the impact rod of the positioning pin telescoping device of the present invention.

Fig. 5 is a schematic view of the cooperation between the telescopic rod and the impact rod of the positioning pin telescoping device of the present invention.

Detailed Description

Referring to fig. 1 to 5, the present invention provides a positioning pin retracting device 100 for acting on a workpiece (not shown) to fix and position the workpiece, the positioning pin retracting device 100 includes: the casing 10, install in the cylinder 20 of casing 10 below, accept in casing 10 and with the impact rod 30 that cylinder 20 is connected, connect the telescopic link 40 of impact rod 30, be located casing 10 and around telescopic link 40 bush 50 all around and install in the locating pin 60 on telescopic link 40 top, wherein, impact rod 30 and bush 50 all accept in casing 10, some of telescopic link 40 is acceptd in casing 10, and another part is protruding to be stretched out casing 10 and peripheral cover are equipped with an annular cover plate 70, locating pin 60 realizes stretching out or retracting under the drive of impact rod 30, the structure of each part is explained in detail below.

The casing 10 is square, and is provided with a top wall 11, a bottom wall 12 and four side walls 13, the top wall 11, the bottom wall 12 and the side walls 13 together enclose an accommodating space for accommodating the impact rod 30 and the bushing 50, the side walls 13 are provided with a positioning hole 14 penetrating through the accommodating space inwards and a plurality of adjusting holes 15 located at two sides of the positioning hole 14, the positioning hole 14 is used for inserting a retaining pin 80 into the accommodating space to limit the telescopic rod 40 in the accommodating space, the adjusting holes 15 are divided into two rows extending from top to bottom, so that additional supporting pieces or supporting blocks are additionally arranged on the casing 10, and the casing 10 can be adjusted to different positions to meet the requirements of different processing stations.

The cylinder 20 is provided with a cylinder body 21 and a guide rod 22 extending from the cylinder body 21, the cylinder body 21 is fixed at the bottom of the housing 10 and has a square structure, the bottom end of the guide rod 22 extends into the cylinder body 21, and the top end of the guide rod 22 extends upwards out of the cylinder body 21 and protrudes into the housing 10 for being fixedly connected with the impact rod 30. When the cylinder 20 is in operation, the guide rod 22 extends and retracts up and down, so as to drive the impact rod 30 at the top end of the guide rod 22 to move up and down, so as to impact the telescopic rod 40, and the telescopic rod 40 can smoothly pull out the positioning pin 60 from a workpiece (not shown) by means of the impact force.

The striking rod 30 has a rod body 31, an upper protrusion 32 at the top end of the rod body 31, a lower protrusion 33 at the bottom end of the rod body 31, and a mounting head 34 below the lower protrusion 33. The rod body 31 is a cylinder extending from top to bottom and between the upper convex portion 32 and the lower convex portion 33, and the rod body 31 is integrally connected with the upper convex portion 32 and the lower convex portion 33. The upper convex portion 32 and the lower convex portion 33 are both protruded from the annular surface of the rod body 31, the upper convex portion 32 is used for being protruded into the telescopic rod 40 and connected with the telescopic rod 40, and the lower convex portion 33 is abutted against the top end of the guide rod 22. The mounting head 34, the lower protrusion 33 and the rod 31 are integrated, and protrude into the top of the guide rod 22, and are fixedly connected to the guide rod 22.

The bottom end of the telescopic rod 40 is connected with the upper convex portion 32 of the impact rod 30, and the top end of the telescopic rod 40 protrudes out of the housing 10 and is fixedly connected with the positioning pin 60, that is, the positioning pin 60 is connected with the impact rod 30 through the telescopic rod 40, so that the impact force of the impact rod 30 can be transmitted to the positioning pin 60 through the telescopic rod 40. Referring to fig. 4, the telescopic rod 40 is provided with an arc surface, the arc surface is provided with a plurality of mounting holes 41 and a strip-shaped chute opening 42, the mounting holes 41 are located at the top end of the telescopic rod 40 and are used for fixing the positioning pin 60, it should be noted that the top end of the telescopic rod 40 is a hollow tube structure, a cavity for accommodating the positioning pin 60 is arranged in the hollow tube structure, and the mounting holes 41 are inwardly penetrated to the cavity so as to conveniently fix the positioning pin 60 in the cavity. The sliding groove opening 42 is long and extends from top to bottom, and is used for being clamped and matched with the stopping pin 80, the stopping pin 80 is inserted into the sliding groove opening 42 through the positioning hole 14 of the shell 10, when the telescopic rod 40 performs telescopic motion, the sliding groove opening 42 and the stopping pin 80 slide relatively, and due to the existence of the stopping pin 80, the vertical telescopic range of the telescopic rod 40 is limited.

It should be noted that the telescopic rod 40 is further provided with a locking groove 43 for accommodating the upper protruding portion 32 of the striking rod 30, as shown in fig. 5, the locking groove 43 is located at the back side of the sliding groove 42, and penetrates downward through the bottom end of the telescopic rod 40 and forms a U-shaped locking notch 44 at the bottom end, the locking notch 44 is oriented in the same direction as the locking groove 43, the locking notch 44 is used for accommodating the rod body 31 of the striking rod 30 and simultaneously locking the upper protruding portion 32 to prevent the upper protruding portion 32 from separating from the locking groove 43, and in the length direction of the locking groove 43, the size of the locking groove 43 is larger than that of the upper protruding portion 32, so that the upper protruding portion 32 can reciprocate in the locking groove 43. Specifically, the upper projection 32 and the lower projection 33 of the impact rod 30 are both larger than the bayonet 44 and cannot pass through the bayonet 44, and the rod body 31 of the impact rod 30 is smaller than the bayonet 44 and can be accommodated in the bayonet slot 43, so that when the impact rod 30 ascends, the lower projection 33 pushes the bottom end of the telescopic rod 40 upwards to force the telescopic rod 40 to ascend, and when the impact rod 30 descends, the upper projection 32 in the bayonet slot 43 pulls the telescopic rod 40 downwards to do descending motion. In the whole lifting process of the impact bar 30, the bar body 31 is always positioned in the bayonet 44 and synchronously lifted, and the upper convex part 32 of the impact bar 30 is also always positioned in the clamping groove 43. It should be noted that, because the upper protrusion 32 needs to move up and down in the slot 43, the length of the slot 43 in the vertical direction must be greater than the size of the upper protrusion 32 in the vertical direction (i.e., the thickness of the upper protrusion 32), so that the slot 43 has enough space for the upper protrusion 32 to move up and down. In addition, since the slot 43 and the chute port 42 are respectively formed on two sides of the telescopic rod 40, and are disposed oppositely, in order to avoid mutual interference between the impact rod 30 in the slot 43 and the retaining pin 80 in the chute port 42, preferably, the slot 43 and the chute port 42 are not penetrated or are not completely penetrated, and a partition wall 45 is disposed between the two, so that the upper convex portion 32 of the impact rod 30 and the retaining pin 80 are respectively located on two sides of the partition wall 45, and the movement of the two is not influenced by each other.

The bushing 50 is arranged in the shell 10, is matched with the telescopic rod 40 and surrounds the periphery of the telescopic rod 40, and the bushing 50 is clamped between the shell 10 and the telescopic rod 40 and fills a gap between the shell 10 and the telescopic rod 40, so that the stroke of the telescopic rod 40 is more stable and accurate, the concentricity of the positioning pin 60 is further ensured, and the position accuracy of the positioning pin 60 is finally improved.

To sum up, the utility model discloses an impact bar 30 drive telescopic link 40 carries out concertina movement to promote locating pin 60 and act on the work piece or borrow the impact force that produces when withdrawing by impact bar 30 and drive locating pin 60 and break away from the work piece, whole process only needs can accomplish stretching out and retracting of locating pin 60 with the help of the impact force, and need not artificial interference, makes locating pin 60 extract from the work piece of deformation more swiftly, has improved production efficiency greatly, whole in-process moreover locating pin 60 also has higher positioning accuracy.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and those skilled in the art can make many variations and modifications of the technical solution of the present invention without departing from the scope of the technical solution of the present invention.

Claims

1. The utility model provides a locating pin telescoping device, includes the cylinder, with the fixed lifting impact bar that links to each other of cylinder, with the telescopic link that the impact bar links to each other and install the locating pin on the telescopic link top, the bottom and the top of impact bar are connected respectively cylinder and telescopic link, its characterized in that: the impact rod is provided with an upper convex part, a lower convex part and a rod body connecting the upper convex part and the lower convex part, the upper convex part and the rod body are clamped in the telescopic rod and can drive the telescopic rod downwards when the impact rod descends, and the lower convex part is exposed outside the telescopic rod and can push the telescopic rod upwards when the impact rod ascends.

2. The locating pin telescoping device of claim 1, wherein: the upper convex part, the rod body and the lower convex part form an I-shaped structure, the impact rod is further provided with an installation head positioned below the lower convex part, and the installation head is fixedly connected with the air cylinder.

3. The locating pin telescoping device of claim 1, wherein: the telescopic rod is provided with a clamping groove for accommodating the upper convex part; in the length direction of the clamping groove, the size of the clamping groove is larger than that of the upper protruding part, so that the upper protruding part can reciprocate in the clamping groove.

4. The locating pin telescoping device of claim 3, wherein: the clamping groove penetrates through the bottom end of the telescopic rod downwards, a bayonet for accommodating the rod body is formed at the bottom end, and the width of the bayonet is smaller than that of the upper convex part and that of the lower convex part.

5. The locating pin telescoping device of claim 4, wherein: the orientation of bayonet socket with the orientation of draw-in groove is the same, just the bayonet socket is the U type.

6. The locating pin telescoping device of claim 5, wherein: the telescopic link still is equipped with a spout mouth, and spout mouth form in the dorsal part of draw-in groove, the spout mouth is rectangular shape and follows the length direction of telescopic link extends, the spout mouth with be equipped with a spacing between the draw-in groove.

7. The locating pin telescoping device of claim 6, wherein: the locating pin telescoping device still includes a stopping round pin, the protruding income of one end of stopping round pin in the spout mouth of telescopic link to the flexible scope of restriction telescopic link.

8. The locating pin retractor according to any one of claims 1 to 7, wherein: the positioning pin expansion device further comprises a shell and a bushing, the impact rod and the bushing are contained in the shell, the bottom end of the expansion link is contained in the shell, the top end of the expansion link extends out of the shell in a protruding mode, and the bushing is wound around the expansion link and located between the shell and the expansion link.

9. The locating pin telescoping device of claim 8, wherein: the cylinder comprises a cylinder body and a guide rod extending out of the cylinder body, the guide rod protrudes upwards into the shell, and the top end of the guide rod is fixedly connected with the bottom end of the impact rod.

10. The locating pin telescoping device of claim 8, wherein: the shell is provided with a positioning hole and a plurality of adjusting holes which are arranged along the vertical direction, and the positioning hole is communicated with the telescopic rod inwards.