Buffer device for vacuum chuck

Abstract

The utility model relates to the technical field of vacuum chuck buffering, in particular to a buffering device for a vacuum chuck, which comprises a mounting pipe and a liquid injection pipe, a fixing pipe is spirally connected in the mounting pipe, external threads are arranged on the outer side of the rear of the fixing pipe, a spring is fixedly connected to the rear of the interior of the fixing pipe, and a buffering rod is fixedly connected to one end, far away from the fixing pipe, of the spring. Balls are arranged on the rear surfaces of the buffer rods. Through design cooperation of a ball and a liquid injection pipe, the device can reduce the contact surface of the surface of a buffer rod and the inner wall of a fixed pipe, and injects lubricating oil into the fixed pipe in cooperation with the liquid injection pipe, so that the problem of metal powder separation caused by friction of a metal rod can be effectively solved, and the phenomena of mechanical blockage and clamping caused by air pipe tension are avoided; and lubricating oil can be injected into the fixed pipe without shutdown, so that the situation that the overall efficiency is reduced due to the fact that shutdown is needed when the lubricating oil is smeared on the surface of the buffer rod is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to vacuum chuck buffering technical field especially, relates to a kind of buffer device for vacuum chuck. BACKGROUND

[0002] The metal buffer rod for vacuum chuck is a kind of accessory for vacuum chuck system, and its main purpose is to play the role of buffering and protection when the chuck works.

[0003] The metal buffer rod for vacuum chuck is a specially designed mechanical element, and this buffer rod has the following advantages: first, the metal buffer rod for vacuum chuck is made of high-quality metal material, has good wear resistance and corrosion resistance, which makes it maintain stable performance in various harsh working environments and prolongs service life;Second, the structure of the buffer rod is very ingenious, can quickly absorb energy when impacted, effectively reduce the pressure on the chuck and other related components, which helps to reduce the failure rate and improve the reliability and stability of the whole system;Finally, it is very convenient to install and use, just need to fix the buffer rod in proper position to realize its function, and because its size is small and light in weight, it will not occupy too much space or increase additional burden.

[0004] However, in the existing mechanical equipment, the problem of metal powder falling caused by friction between metal rod and guide sleeve and the phenomenon of mechanical jamming and clamping caused by uneven tension of air pipe are common technical problems, and these problems are mainly caused by continuous wear of metal rod, insufficient lubrication, improper design gap, unreasonable air pipe path design and air pressure fluctuation and other factors.In mechanical equipment, metal rod usually needs to slide frequently in guide sleeve to realize various movement functions, however, due to the friction between materials, this continuous relative movement will cause the gradual wear of metal surface, and then produce small metal particles, which not only reduce the running efficiency of equipment, but also affect the reliability and service life of equipment, therefore, a kind of buffer device for vacuum chuck is provided to overcome the above defects. CONTENT OF THE UTILITY MODEL

[0005] The utility model aims at solving the shortcomings in the prior art, and provides a kind of buffer device for vacuum chuck.

[0006] In order to achieve the above object, the utility model discloses the following technical scheme: a kind of buffer device for vacuum chuck, including installation pipe and injection pipe, the fixed pipe is spirally connected in the installation pipe inside, the outer thread is provided at the rear outside of the fixed pipe, the spring is fixedly connected in the rear inside of the fixed pipe, the one end of the spring away from the fixed pipe is fixedly connected with buffer rod, the rear surface of the buffer rod is provided with ball, the injection port is opened in the rear top middle of the buffer rod inside, the storage bin is fixedly connected on the right upper surface of the installation pipe, the injection pipe is fixedly connected on the left end surface of the storage bin.

[0007] As further description of the above technical solution: the outer thread surface is in contact with the inner wall of installation pipe and spirals, the rear middle of the storage bin inside is fixedly connected with the front end outer side of injection pipe, the outer side of the one end of injection pipe away from the storage bin is fixedly connected with the inner wall of injection port opened in the rear inside of fixed pipe, the surface of ball is in contact with the inner wall of fixed pipe, which can reduce the contact area of the surface of buffer rod and the inner wall of fixed pipe, and cooperate with injection pipe to inject lubricating oil into fixed pipe, which can effectively solve the problem of metal powder separation caused by metal rod friction.

[0008] As further description of the above technical solution: the inner thread is provided on the inner wall of installation pipe, and the pitch of the inner thread on the inner wall of installation pipe matches the pitch of the outer thread on the rear outside of fixed pipe, for installing fixed pipe in installation pipe to achieve the purpose of installing fixed pipe.

[0009] As further description of the above technical solution: the hole is opened in the rear middle of the storage bin rear end surface, the middle of the left end surface of the storage bin and the right upper side inside of installation pipe, the hole diameter of the rear middle of the storage bin rear end surface matches the longitudinal section diameter of injection pipe, and the hole diameter of the middle of the left end surface of the storage bin and the right upper side inside of installation pipe all match the longitudinal section diameter of infusion tube, which can inject lubricating oil into storage bin through injection pipe, and if subsequent injection of lubricating oil into fixed pipe is needed, lubricating oil stored in storage bin is squeezed to infusion tube, and then injected into fixed pipe through infusion tube.

[0010] As further description of the above technical solution: the injection port diameter of the middle of the rear top of fixed pipe inside matches the longitudinal section diameter of infusion tube, and the length of infusion tube matches the length of installation pipe inside, which can avoid the case that the length of infusion tube is too short, resulting in that infusion tube is separated from injection port opened in the rear of fixed pipe when adjusting the depth of fixed pipe in installation pipe.

[0011] As further description of the above technical solution: the surface of buffer rod is provided with a plurality of spherical grooves distributed from front to back, and the ball is distributed in the spherical grooves on the surface of buffer rod and limited by the spherical grooves, which can reduce the contact area of the surface of buffer rod and the inner wall of fixed pipe, and avoid mechanical jamming and clamping caused by trachea tension.

[0012] As the further description of the above technical scheme: the fixed pipe is internally provided with a sliding groove from front to back, and the spring and the buffer rod are both in the sliding groove internally provided in the fixed pipe, the outer diameter of the spring matches the longitudinal section diameter of the rear of the buffer rod, and the purpose of buffering of the buffer rod to the vacuum chuck is achieved.

[0013] The vacuum chuck buffer device has the following beneficial effects:

[0014] The vacuum chuck buffer device designed in the utility model has the advantages that the device can reduce the contact surface of the surface of the buffer rod and the inner wall of the fixed pipe through the design cooperation of the ball and the liquid injection pipe, and cooperates with the liquid injection pipe to inject lubricating oil into the fixed pipe, which can effectively solve the problem of metal powder separation caused by metal rod friction, avoid mechanical jamming and clamping caused by air pipe tension, and the lubricating oil can be injected into the fixed pipe without stopping, avoiding the need to stop when smearing lubricating oil on the surface of the buffer rod, and reducing the overall efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0015] Fig. 1 It is an overall structure schematic view of the utility model;

[0016] Fig. 2 It is an overall explosion structure schematic view of the utility model;

[0017] Fig. 3 It is a fixed pipe transverse rotation 180 degree three-dimensional structure schematic view of the utility model;

[0018] Fig. 4 It is a storage bin longitudinal section structure schematic view of the utility model.

[0019] LEGEND:

[0020] 1, installation pipe; 2, fixed pipe; 3, external thread; 4, buffer rod; 5, storage bin; 6, liquid injection pipe; 7, spring; 8, ball; 9, liquid injection port; 10, liquid injection pipe. DETAILED DESCRIPTION

[0021] Refer to Figs. 1 to 4The utility model provides a kind of buffer device for vacuum chuck, including installation pipe 1 and injection tube 6, installation pipe 1 inside is inserted and spiral by fixed pipe 2, fixed pipe 2 rear outside is provided with outer thread 3, spring 7 is welded in the rear inside of fixed pipe 2, one end of spring 7 away from fixed pipe 2 is welded buffer rod 4, the rear surface of buffer rod 4 is provided with ball 8, injection port 9 is set in the rear inside top middle of buffer rod 4, storage bin 5 is welded in the right upper surface of installation pipe 1, the left end surface of storage bin 5 is inserted and fixed by injection tube 6, outer thread 3 surface is contacted with the inner wall of installation pipe 1 and spiral, the rear middle inside of storage bin 5 is fixedly connected with the front end outside of injection tube 6, the outer side of injection tube 6 away from storage bin 5 is fixedly connected with the inner wall of injection port 9 set in the rear inside of fixed pipe 2, the surface of ball 8 is contacted with the inner wall of fixed pipe 2, can reduce the contact area of the surface of buffer rod 4 and the inner wall of fixed pipe 2, and cooperate injection tube 6 to inject lubricating oil into fixed pipe 2, can effectively solve the problem that metal powder is separated by metal rod friction.

[0022] As further implementation of the above technical solution: the inner wall of installation pipe 1 is provided with internal thread, and the pitch of the internal thread of the inner wall of installation pipe 1 matches the pitch of the outer thread 3 on the rear outside of fixed pipe 2, for installing fixed pipe 2 in installation pipe 1, to achieve the purpose of installing fixed pipe 2.

[0023] As further implementation of the above technical solution: the rear end surface middle of storage bin 5, the left end surface middle of storage bin 5 and the right side upper inside of installation pipe 1 are all provided with holes, the hole diameter of the rear end surface middle of storage bin 5 matches the longitudinal section diameter of injection tube 6, and the hole diameters of the left end surface middle of storage bin 5 and the right side upper inside of installation pipe 1 both match the longitudinal section diameter of infusion tube 10, lubricating oil can be injected into storage bin 5 through injection tube 6, if it is needed to inject lubricating oil into fixed pipe 2 later, continue to inject lubricating oil, extrude the lubricating oil previously stored in storage bin 5 to infusion tube 10, and then inject into fixed pipe 2 through infusion tube 10.

[0024] As further implementation of the above technical solution: the injection port 9 in the rear top middle of fixed pipe 2 has a diameter matching the longitudinal section diameter of infusion tube 10, and the length of infusion tube 10 matches the length of installation pipe 1, to avoid the case that the length of infusion tube 10 is too short, causing infusion tube 10 to be separated from the injection port 9 set in the rear of fixed pipe 2 when adjusting the depth of fixed pipe 2 in installation pipe 1.

[0025] As further implementation of the above technical solution: a plurality of spherical grooves are formed on the surface of buffer rod 4 from front to back, and the ball 8 is distributed in the spherical grooves on the surface of buffer rod 4 and is limited by the spherical grooves, to reduce the contact area of the surface of buffer rod 4 and the inner wall of fixed pipe 2, and avoid mechanical jamming and clamping caused by air pipe tension.

[0026] As a further embodiment of the above technical solution: the fixed tube 2 is internally provided with a sliding groove from front to back, and the spring 7 and the buffer rod 4 are both in the sliding groove internally provided in the fixed tube 2, the outer diameter of the spring 7 matches the longitudinal section diameter of the rear of the buffer rod 4, so as to achieve the purpose of buffering the vacuum chuck by the buffer rod 4.

[0027] Working principle:

[0028] When using the utility model, the vacuum chuck is installed at the front side top end of the buffer rod 4 and can be used, when the installation pipe 1 drives the fixed tube 2, the buffer rod 4 and the vacuum chuck to move to the set position, the equipment driving the installation pipe 1 to move drives the installation pipe 1 to move downward again, the vacuum chuck contacts the workpiece surface, at this time, the installation pipe 1 continuously drives the fixed tube 2 to move downward, and the vacuum chuck and the buffer rod 4 are in a fixed state, at this time, the spring 7 in the fixed tube 2 deforms, and the ball 8 on the surface of the buffer rod 4 slides along the inner wall of the fixed tube 2, if it is needed to spray lubricating oil in the fixed tube 2, the liquid injection pipe 6 continuously injects lubricating oil into the storage bin 5, at this time, the lubricating oil enters the inner wall of the fixed tube 2 through the liquid delivery pipe 10 passing through the liquid injection port 9, so that the inner wall of the fixed tube 2 and the surface of the buffer rod 4 are uniformly contacted by the lubricating oil, and the lubricating oil can be injected into the fixed tube 2 without stopping, avoiding the need to stop when smearing lubricating oil on the surface of the buffer rod 4, so as to reduce the overall efficiency.

[0029] Finally, it should be pointed out that: the above is only the preferred embodiment of the utility model, and is not used to limit the utility model, although the utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, it still can modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part of the technical features, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A cushioning device for a vacuum chuck comprising a mounting tube (1) and a liquid injection tube (6), characterized in that: The mounting pipe (1) is internally screwed with a fixed pipe (2), the outer thread (3) is arranged on the rear outer side of the fixed pipe (2), the spring (7) is fixedly connected to the rear inner side of the fixed pipe (2), one end of the spring (7) away from the fixed pipe (2) is fixedly connected with the buffer rod (4), the rear surface of the buffer rod (4) is provided with the ball (8), the liquid injection port (9) is arranged in the rear top middle of the buffer rod (4), the storage bin (5) is fixedly connected to the right upper surface of the mounting pipe (1), and the liquid injection pipe (6) is fixedly connected to the left end surface of the storage bin (5).

2. A cushioning device for a vacuum chuck as defined in claim 1, characterized in that: The outer thread (3) surface is in contact with the inner wall of the mounting pipe (1) and is screwed, the rear middle of the storage bin (5) is fixedly connected with the front end outer side of the liquid injection pipe (6), one end of the liquid injection pipe (6) away from the storage bin (5) is fixedly connected with the inner wall of the liquid injection port (9) arranged in the rear inner side of the fixed pipe (2), and the surface of the ball (8) is in contact with the inner wall of the fixed pipe (2).

3. The cushioning device for vacuum chuck according to claim 1, wherein: The inner wall of the mounting pipe (1) is provided with an inner thread, and the pitch of the inner thread of the inner wall of the mounting pipe (1) matches the pitch of the outer thread (3) on the rear outer side of the fixed pipe (2).

4. The cushioning device for vacuum chuck according to claim 1, wherein: The rear end surface middle of the storage bin (5), the left end surface middle of the storage bin (5) and the right upper side inside of the mounting pipe (1) are all provided with holes, the hole diameter of the rear end surface middle of the storage bin (5) matches the longitudinal section diameter of the liquid injection pipe (6), and the hole diameters of the left end surface middle of the storage bin (5) and the right upper side inside of the mounting pipe (1) both match the longitudinal section diameter of the infusion pipe (10).

5. The cushioning device for a vacuum chuck according to claim 1, wherein: The diameter of the liquid injection port (9) in the middle of the top rear inner side of the fixed pipe (2) matches the longitudinal section diameter of the infusion pipe (10), and the length of the infusion pipe (10) matches the length of the mounting pipe (1).

6. The cushioning device for a vacuum chuck according to claim 1, wherein: The surface of the buffer rod (4) is provided with a plurality of spherical grooves distributed from front to back, and the balls (8) are all distributed in the spherical grooves on the surface of the buffer rod (4) and are limited by the spherical grooves.

7. The cushioning device for a vacuum chuck according to claim 1, wherein: The inner side of the fixed pipe (2) is provided with a sliding groove from front to back, and the spring (7) and the buffer rod (4) are both in the sliding groove arranged in the inner side of the fixed pipe (2), and the outer diameter of the spring (7) matches the longitudinal section diameter of the rear of the buffer rod (4).

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