Automatic sleeve replacing device

Abstract

The invention discloses an automatic sleeve replacing device which comprises a frame body, a base and a sleeve clamping and positioning mechanism and is characterized in that the sleeve clamping and positioning mechanism comprises a pneumatic clamp, a proximity switch and a positioning mechanism, the base comprises a horizontal plate and a vertical plate vertically fixed to the center line of the horizontal plate, and the base is of an inverted-T-shaped plate structure; the horizontal plate is assembled at the upper part of the frame body and is horizontally arranged, and the positioning mechanism is mounted on the upper surface of the horizontal plate; the positioning mechanism is used for positioning the position of the sleeve; the proximity switch is assembled on the base, is positioned on the side of the positioning mechanism and is used for determining that the sleeve is mounted in place on the positioning mechanism; the pneumatic clamp is installed on the vertical plate, and the clamping center of the pneumatic clamp and the positioning mechanism share the same central axis. The device has the advantages of simple structure, convenience in operation, accurate sleeve positioning position, high sleeve replacement efficiency and the like.

Description

Technical Field

[0001] The present invention relates to the technical field of automatic sleeve replacement, and particularly to an automatic sleeve replacement device. Background Art

[0002] An intelligent manufacturing production line is composed of a variety of action devices, which realizes operations such as grasping, conveying, batching, assembling, and offline of target workpieces. The intelligent manufacturing production line realizes the intelligence and automation of manufacturing, greatly improving the production accuracy and efficiency. Currently, tightening equipment is arranged on the intelligent manufacturing production line, and the tightening operation of the target workpiece is realized through a tightening shaft. Among them, a tightening sleeve needs to be assembled at the end of the tightening shaft, and the tightening sleeve cooperates with the bolt on the target workpiece. If a tightening shaft can cooperate with various types of tightening sleeves, the production line cost can be effectively reduced.

[0003] In an intelligent workshop, robots automate the assembly of vehicle parts and components, which can efficiently complete the production assembly tasks, with high production capacity and good consistency of assembly processes. In the assembly of vehicle parts and components, it is inevitable to perform bolt connections between multiple parts and components. For different bolt models, different sleeves need to be adapted, similar to the tools on CNC lathes and CNC milling machines. Therefore, many intelligent workshops have adapted different models of bolt sleeves for the automatic assembly processes of different bolts to meet the connection and locking requirements of different bolt connectors. When such bolt sleeves need to be used, put back, or another sleeve needs to be replaced, in order to achieve the intelligent operation technical indicators of a unmanned workshop, an automated device for automatically grasping bolt sleeves needs to be designed to improve the intelligent level of automatic sleeve replacement and facilitate the technical requirements of unmanned operation production.

[0004] The disclosure of the above background art content is only used to assist in understanding the concept and technical solution of the present invention, and it does not necessarily belong to the prior art of this patent application. Without clear evidence indicating that the above content was publicly available on the filing date of this patent application, the above background art should not be used to evaluate the novelty and inventiveness of this application. Summary of the Invention

[0005] The main object of the present invention is to propose an automatic sleeve replacement device with a simple structure, convenient operation, accurate positioning of the sleeve position, and high efficiency in replacing the sleeve.

[0006] To this end, the present invention proposes an automatic sleeve replacement device.

[0007] Preferably, the present invention may further have the following technical features:

[0008] An automatic sleeve replacement device, comprising a frame body, a base, and a sleeve clamping and positioning mechanism. The sleeve clamping and positioning mechanism includes a pneumatic fixture, a proximity switch, and a positioning mechanism. The base includes a horizontal plate and a vertical plate vertically fixed at the midline of the horizontal plate, presenting an inverted T-shaped plate structure. The horizontal plate is assembled on the upper part of the frame body and is horizontally arranged, and the positioning mechanism is installed on its upper surface. The positioning mechanism is used to position the sleeve. The proximity switch is assembled on the base and is on the side of the positioning mechanism, and it is used to determine that the sleeve is installed in place in the positioning mechanism. The pneumatic fixture is installed on the vertical plate, and its clamping center and the positioning mechanism have the same central axis.

[0009] Further, the sleeve clamping and positioning mechanism includes a positioning bolt, and the positioning bolt is an external hexagonal bolt, which is screwed on the base.

[0010] Further, the sleeve clamping and positioning mechanism further includes a mounting seat, and the mounting seat is fixed on the base by bolts, and it is provided with an axial threaded through hole.

[0011] Further, a plurality of sleeve clamping and positioning mechanisms are installed on the vertical plate.

[0012] Further, the proximity switch is fixed on the base by a bracket.

[0013] Further, a collision-proof cover plate is fixed on the top of the vertical plate of the base, and the collision-proof cover plate is horizontally arranged.

[0014] The beneficial effects of the present invention compared with the prior art include: the position of the sleeve is limited by the positioning mechanism, and then the upper part of the sleeve is clamped by the pneumatic fixture, thereby positioning the sleeve. The positioning bolt is connected through the mounting seat to adapt to positioning bolts of different sizes to match sleeves of different sizes, and there is no need to change the hole positions of the mounting plate, and the operation is quick and simple. The external hexagonal head of the positioning bolt and the proximity switch are used to determine whether the sleeve is installed in place, improving the operation accuracy. Description of the Drawings

[0015] Figure 1 is a perspective view of the present invention.

[0016] Figure 2 is a top view of the present invention.

[0017] Figure 3 is a front view of the present invention.

[0018] Figure 4 is a side view of the present invention.

[0019] Figure 5 is a partial cross-sectional view of the present invention.

[0020] Description of the Reference Numerals

[0021] 1. Frame; 2. Allen bolt; 3. Taper pin; 4. Base; 5. Bolt; 6. Cylindrical pin; 7. Anti-collision cover plate; 8. Bolt; 9. Pneumatic fixture; 10. Bolt; 11. Bracket; 12. Bolt; 13. Proximity switch; 14. Jaw I; 15. Bolt; 16. Jaw II. Specific embodiments

[0022] The present invention will be further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be emphasized that the following description is merely exemplary and is not intended to limit the scope and application of the present invention.

[0023] With reference to the following drawings, non-limiting and non-exclusive embodiments will be described, where like reference numerals represent like components, unless otherwise specifically stated.

[0024] As Figures 1 to 5 shown, an automatic sleeve changing device includes a frame 1, a base 4, and a sleeve clamping and positioning mechanism. The sleeve clamping and positioning mechanism includes a pneumatic fixture 9, a proximity switch 13, and a positioning mechanism. The base 4 includes a horizontal plate 18 and a vertical plate 19 vertically fixed to the midline of the horizontal plate 18, having an inverted T-shaped plate structure. The horizontal plate 18 is assembled on the upper part of the frame 1 and is horizontally arranged, and the positioning mechanism (20, 25) is installed on its upper surface. The positioning mechanism is used to position the sleeve, which can improve the installation efficiency of the sleeve. The positioning block is provided with a central screw hole, and a flange surface is also provided in the middle thereof. The flange surface is provided with a perforation, and a bolt passes through the perforation to fix the positioning block on the horizontal plate. The proximity switch 13 is fixed to the base 4 through a bracket 11 and is on the side of the positioning mechanism, and it is used to determine that the sleeve is in place when installed on the positioning mechanism. The pneumatic fixture 9 is installed on the vertical plate 19, and its clamping center and the positioning mechanism have the same central axis. When the robotic arm places the sleeve on the positioning mechanism, the proximity switch senses that the sleeve is assembled in place, and the pneumatic fixture is activated to clamp the upper part of the sleeve. In this way, the sleeve is positioned by limiting the position of the sleeve through the positioning mechanism and then using the pneumatic fixture to clamp the upper part of the sleeve. The pneumatic fixture 9 is fixed to the vertical plate 19 through a bolt 10, and it is an existing part, including a cylinder and jaws connected to the cylinder.

[0025] Preferably, the positioning mechanism includes a positioning bolt 25, which is an external hexagon bolt screwed onto the base 4 and cooperates with the internal hexagon hole of the sleeve through the external hexagon head of the positioning bolt 25. Further, the positioning mechanism further includes a mounting seat 20, which is fixed to the base 4 by bolts and has an axially threaded through hole for connecting the positioning bolt 25. Connecting the positioning bolt 25 through the mounting seat 20 is convenient for replacement, adapts to positioning bolts 25 of different sizes to match sleeves of different sizes, and there is no need to change the hole positions of the base 4, with quick and simple operation and a wide range of adaptability.

[0026] To improve the replacement efficiency, a number of sleeve clamping and positioning mechanisms are installed on the vertical plate 19, which can meet the needs of replacing multiple sleeves at one time.

[0027] A collision-proof cover plate 21 is fixed to the top of the vertical plate 16 of the base, and the collision-proof cover plate 21 is horizontally arranged.

[0028] Those skilled in the art will recognize that numerous variations to the above description are possible, so the embodiments and figures are only used to describe one or more specific embodiments.

[0029] Although the exemplary embodiments considered to be the invention have been described and recited, those skilled in the art will understand that various changes and substitutions can be made thereto without departing from the spirit of the invention. Additionally, many modifications can be made to adapt a particular situation to the teachings of the invention without departing from the central concept described herein. Therefore, the invention is not limited to the specific embodiments disclosed herein, but the invention may include all embodiments within the scope of the invention and their equivalents.

Claims

1. An automatic sleeve changing device, comprising a frame body, a base, and a sleeve clamping and positioning mechanism, characterized in that: The sleeve clamping and positioning mechanism includes a pneumatic fixture, a proximity switch and a positioning mechanism. The base includes a horizontal plate and a vertical plate vertically fixed at the midline of the horizontal plate, presenting an inverted T-shaped plate structure. The horizontal plate is assembled on the upper part of the frame body and is horizontally arranged, and the positioning mechanism is installed on its upper surface. The positioning mechanism is used to position the sleeve. The proximity switch is assembled on the base and is located on the side of the positioning mechanism, and it is used to determine that the sleeve is in place when installed on the positioning mechanism. The pneumatic fixture is installed on the vertical plate, and its clamping center and the positioning mechanism have the same central axis.

2. The automatic sleeve changing device according to claim 1, wherein: The sleeve clamping and positioning mechanism includes a positioning bolt, and the positioning bolt is an external hexagon bolt, which is screwed onto the base.

3. The automatic sleeve changing device according to claim 1, characterized in that: The sleeve clamping and positioning mechanism further includes a mounting seat, and the mounting seat is fixed on the base by bolts and is provided with an axial threaded through hole.

4. The automatic sleeve replacement device according to claim 1, characterized in that: A plurality of sleeve clamping and positioning mechanisms are installed on the vertical plate.

5. The automatic sleeve replacement device according to claim 1, characterized in that: The proximity switch is fixed on the base through a bracket.

6. The automatic sleeve replacement device according to claim 1, wherein: A collision-proof cover plate is fixed at the top of the vertical plate of the base, and the collision-proof cover plate is horizontally arranged.

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