CN217045882U - Sanding tool - Google Patents

Abstract

The application discloses a sanding tool, which relates to the technical field of automobile part processing and comprises a sanding head, a sanding block, a connecting rod and a telescopic driving device; the sanding head is formed by radially and tangentially forming a plane on the side surface of a cylindrical structure, a sanding block is arranged on the side surface of the sanding head, which is tangentially formed into the plane, the sanding block is arc-shaped, and the arc-shaped surface of the sanding block is adaptive to the curvature radius of the cylinder sleeve; the sand grinding block is provided with water sand paper; the one end of head passes through the connecting rod and connects the head rod, and the telescopic link is connected to the head rod, and the telescopic link has the contained angle with the head rod, and the telescopic link still is connected the second connecting rod, and the direction of second connecting rod is the same with the direction of motion of head rod and head rod, and flexible drive arrangement is connected to the one end of second connecting rod. This application has realized automated control dull polish, and the in-process effort at actual dull polish is even.

Description

Sanding tool

Technical Field

The application relates to an automobile parts handles technical field, especially relates to a sanding tool.

Background

The cylinder sleeve is a cylindrical part, is arranged in a cylinder body hole of the machine body and is fixedly pressed by a cylinder cover, the piston reciprocates in the cylinder sleeve, and the cylinder sleeve always generates high-speed sliding friction with the piston ring and the piston part.

In order to improve the service life of a cylinder-piston assembly and improve the running-in performance, for a cylinder, besides developing a wear-resistant material, proper surface treatment is performed on the inner wall of a cylinder sleeve, which is a feasible and important approach.

After the engine cylinder sleeve is phosphorized, a phosphorization layer of the cylinder sleeve needs to be sanded, so that the oil content of the surface of the phosphorization layer is measured, and the purpose is to ensure that a certain oil film is arranged in the cylinder sleeve after the engine is stopped, so that the risk of strain injury is reduced after the engine is restarted; the manual pressure sanding mode is generally adopted to sand the phosphate coating on the surface of the cylinder sleeve, so that the pressure applied in each sanding process is uncontrollable.

Disclosure of Invention

This application embodiment has solved engine cylinder cover bonderizing back among the prior art through providing a sanding tool, need adopt the manual sanding mode of exerting pressure sanding cylinder cover bonderizing layer surface, causes sanding process pressure of exerting pressure uncontrollable at every turn, has realized automated control dull polish, and the in-process effort at actual dull polish is even.

The embodiment of the utility model provides a sanding tool, comprising a sanding head, a sanding block, a connecting rod and a telescopic driving device;

the sanding head is formed by radially and tangentially forming a plane on the side surface of a cylindrical structure, a sanding block is arranged on one side of the sanding head, the side surface of the sanding head is tangentially formed into the plane, the sanding block is arc-shaped, and the arc-shaped surface of the sanding block is matched with the curvature radius of the cylinder sleeve; the sand grinding block is provided with waterproof sand paper;

one end of the sand grinding head is connected with a first connecting rod through a connecting rod, the first connecting rod is connected with a telescopic rod, an included angle is formed between the telescopic rod and the first connecting rod, the telescopic rod is further connected with a second connecting rod, the direction of the second connecting rod is the same as the moving direction of the first connecting rod and the sand grinding head, and one end of the second connecting rod is connected with a telescopic driving device.

In a possible implementation manner, the direction of the center of the sanding block perpendicular to the inner wall of the cylinder sleeve grinding position is the same as the telescopic direction of the telescopic rod.

In a possible implementation, the surface of the sanding block is bonded with waterproof abrasive paper, and the waterproof abrasive paper comprises an anti-blocking layer, a sanding layer, a first double-sided adhesive layer, a waterproof layer, a second double-sided adhesive layer, a toughness layer and a third double-sided adhesive layer from top to bottom.

In one possible implementation, the surface of the sanding layer comprises sand grains and synthetic glue, and the sand grains are made of silicon carbide materials.

In one possible implementation manner, the sand grain size of the waterproof abrasive paper is 800 degrees.

In one possible implementation manner, the sanding head and the sanding block are made of steel materials.

The embodiment of the utility model provides an in one or more technical scheme, following technological effect or advantage have at least:

the embodiment of the utility model adopts the advantages that the curvature radius of the sanding block on the sanding head is the same as that of the inner wall of the cylinder sleeve, and the depth of the sanding head in the sleeve is controlled by the telescopic driving device, when the sanding block of the sanding head does not contact with the inner wall of the cylinder sleeve, the inner wall of the sanding block close to the cylinder sleeve can be controlled by controlling the extension of the telescopic rod, the sanding can be started after the sanding block just closes the sanding area determined by the inner wall of the cylinder sleeve, and the sanding can be carried out in the fixed area of the inner wall of the cylinder sleeve by continuously back-and-forth stretching and stretching the cylinder again, the moving directions of the first connecting rod, the second connecting rod and the sanding head are consistent, the stroke of back-and-forth stretching is consistent, the surface stress of the waterproof abrasive paper on the sanding block is uniform, the waterproof abrasive paper only bears the weight of the sanding block, no other component force increased due to mechanical movement is needed to increase or reduce the pressure of the sanding head, the embodiment of the utility model provides an automatic control dull polish has been realized, and is even at the in-process effort of actual dull polish.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the embodiments of the present invention or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are 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 structural view of a sanding tool provided by an embodiment of the present application;

FIG. 2 is a perspective view of a sanding head of the sanding tool provided by an embodiment of the present application;

FIG. 3 is a top, schematic, cross-sectional view of a portion of a sanding tool provided in accordance with an embodiment of the present application;

fig. 4 is a schematic diagram of a configuration of a sanding tool sandpaper as provided by an embodiment of the present application.

Icon: 1-a sand grinding head; 11-sanding block; 2-a connecting rod; 21-a first connecting rod; 22-a telescopic rod; 23-a second connecting rod; 3-a cylinder; 4-cylinder jacket; 5, fixing a base; 6-waterproof abrasive paper; 61-an anti-clogging layer; 62-sanding layer; 63-a first double-sided adhesive layer; 64-a waterproof layer; 65-a second two-sided adhesive layer; 66-a ductile layer; 67-third two-sided adhesive layer.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. 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.

In the description of the embodiments of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience of describing the embodiments of the present invention and simplifying the description, but do not indicate or imply that the device 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 invention. The terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Furthermore, the terms "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the embodiments of the present invention can be understood by those of ordinary skill in the art according to specific situations.

Referring to fig. 1-4, the embodiment of the present invention first provides a sanding tool, which includes a sanding head 1, a sanding block 11, a connecting rod 2 and a telescopic driving device;

the sanding head 1 is formed by radially and tangentially cutting the side surface of a cylindrical structure into a plane, a sanding block 11 is arranged on one surface of the sanding head 1, which is cut into the plane on the side surface, the sanding block 11 is arc-shaped, and the arc-shaped surface of the sanding block 11 is adaptive to the curvature radius of the cylinder sleeve 4; the sand grinding block 11 is provided with water sand paper 6;

connecting rod 2 is passed through to the one end of emery wheel head 1 and is connected head rod 21, and head rod 21 connects telescopic link 22, and telescopic link 22 has the contained angle with head rod 21, the utility model discloses embodiment telescopic link 22 is perpendicular with head rod 21, and second connecting rod 23 is still connected to telescopic link 22, and the direction of second connecting rod 23 is the same with head rod 21 and emery wheel head 1's direction of motion, and flexible drive arrangement is connected to the one end of second connecting rod 23.

By adopting the scheme, the curvature radius of the sanding block 11 on the sanding head 1 is the same as that of the inner wall of the cylinder sleeve 4, the depth of the sanding head 1 in the cylinder sleeve 4 is controlled by utilizing the telescopic driving device, when the sanding block 11 of the sanding head 1 is not contacted with the inner wall of the cylinder sleeve 4, the sanding block 11 is controlled to be close to the inner wall of the cylinder sleeve 4 by controlling the extension of the telescopic rod 22, after the sanding block 11 is just close to a sanding area determined by the inner wall of the cylinder sleeve 4, sanding can be started, the cylinder 3 is utilized to continuously stretch back and forth to sand in a fixed area of the inner wall of the cylinder sleeve 4, the movement directions of the first connecting rod 21, the second connecting rod 23 and the sanding head 1 are consistent, the sand paper with the back and forth telescopic strokes is simultaneously, the surface stress of the water 6 on the sanding block 11 is uniform, and the weight of the water 6 is only equal to the sanding block 11, must not have any other component that increases because of mechanical motion and increase or reduce bistrique pressure, the embodiment of the utility model provides a realize automated control dull polish, it is even at the in-process effort of actual dull polish.

Specifically, the utility model discloses a flexible drive arrangement adopts cylinder 3 to realize, perhaps also can adopt other devices that can realize the back and forth concertina movement, and in addition, telescopic link 22 also can use cylinder 3 to replace, as long as can realize flexible function can, the utility model discloses cylinder 3, telescopic link 22 all are connected with control system, control whole working process through control system.

Alternatively, the direction in which the center of the sanding block 11 is perpendicular to the inner wall of the sanding position of the cylinder liner 4 is the same as the extension and retraction direction of the extension bar 22.

Like this before sanding at sanding block 11 to cylinder jacket 4 inner wall, telescopic link 22 stretches out for sanding block 11 just aims at the area of treating the sanding, realizes accurate sanding.

Optionally, the surface of the sanding block 11 is bonded with the waterproof abrasive paper 6 through a double-sided adhesive tape, and the waterproof abrasive paper 6 comprises an anti-blocking layer 61, a sanding layer 62, a first double-sided adhesive layer 63, a waterproof layer 64, a second double-sided adhesive layer 65, a toughness layer 66 and a third double-sided adhesive layer 67 from top to bottom. The sanding layer 62 is convenient for removing rough tips of the phosphating layer, the first double-sided adhesive layer 63 is used for bonding the sanding layer 62 with the waterproof layer 64, the waterproof layer 64 improves the waterproof performance of the waterproof abrasive paper 6, and the anti-blocking layer 61 positioned above the sanding layer 62 can effectively prevent the sanded ash from blocking gaps between abrasive materials, so that the service life of the waterproof abrasive paper 6 is prolonged; the anti-blocking layer 61 can be mainly composed of 80% of carrier rubber, 15% of silicon nitride and 5% of scale graphite material, the carrier rubber is polyurethane rubber, the scale graphite material is used as a natural fixed body lubricating material and has good toughness, the silicon nitride has strong high-pressure creep resistance and small thermal expansion coefficient, the silicon nitride and the scale graphite material are added after the polyurethane rubber is melted at high temperature, the anti-blocking layer 61 on the whole has good compactness, and meanwhile, due to the action of the scale graphite material and the silicon nitride material, the sliding resistance between the friction surfaces is reduced, and the smoothness of the friction surfaces is increased; the thermal expansion coefficient is small, deformation caused by friction heat is reduced, and the service life of the waterproof abrasive paper 6 is prolonged; in addition, waterproof layer 64 still bonds toughness layer 66 through second double-sided adhesive layer 65, and graphene materials can be chooseed for use on toughness layer 66, because waterproof abrasive paper 6 presents the arc and will cooperate with the arc surface of sanding block 11, still need have certain toughness when not fragile.

Optionally, the surface of the sanding layer 62 includes sand particles and synthetic gum, and the sand particles are selected from silicon carbide materials. The silicon carbide material has high hardness, high grinding capacity, high temperature resistance and oxidation resistance.

Optionally, the sand grain size of the waterproof sand paper 6 is 800 degrees. Intervals are reserved among the sand grains, so that the phenomena that the sand grains are easily blocked and the grinding function is weakened due to the fact that the sand grains are closely attached to each other are avoided, the appearance of the sand grains is conical or circular truncated cone-shaped, and the grinding effect is enhanced; the selected sand grain has the granularity of 800 degrees, the sand paper is relatively fine, and the polishing effect is better.

When the water sand paper 6 is attached to the surface of the sand grinding block 11, the sand paper is pressed by the self weight of the sand grinding block 11, the surface of the sand grinding block 11 is adapted to the curvature radius of the cylinder sleeve 4, the uniform stress of the surface of the sand paper is ensured, only the weight of the sand grinding block 11 is borne, the pressure of the sand grinding head 1 cannot be increased or reduced due to any other component force increased due to mechanical movement, and when the sand grinding head 1 rotates, the rough tip of a phosphating layer is removed, and the purpose of exposing a basic tissue corroded by acid pickling and phosphating is achieved.

Alternatively, the direction in which the center of the sanding block 11 is perpendicular to the inner wall of the sanding position of the cylinder liner 4 is the same as the extension and retraction direction of the extension bar 22. Therefore, when the telescopic rod 22 stretches, the center of the sanding block 11 faces the inner wall of the cylinder sleeve 4, and the accuracy and the timeliness of the telescopic rod 22 for controlling the sanding block 11 are guaranteed.

Optionally, the sanding head 1 and the sanding block 11 are made of steel. The sand grinding head 1 and the sand grinding block 11 are made of 45 steel, and the steel material is high in strength, good in plasticity and toughness and uniform in material quality.

When the utility model is used specifically, S1, at the specified position of the cylinder sleeve, the area of 25mm wide and 55mm long is taken from the position of 30-40 mm from the bottom edge of the cylinder sleeve 4, because the cylinder sleeve 4 and the piston move relative to each other, and 30-40 mm is the range of the starting position of the piston ring, and the set sanding area of 25mm wide and 55mm has less damage to the cylinder sleeve 4; treating with 98% concentrated sulfuric acid for 2min, drying with cotton ball, spraying distilled water to clean the measurement part and its periphery, and drying with cotton ball while wearing rubber gloves; the purpose of using 98% concentrated sulfuric acid is to clean the measuring surface, corrode the phosphating film, facilitate sanding more conveniently, remove the rough tip of the phosphating layer and expose the basic structure corroded by acid cleaning and phosphating; then the waterproof abrasive paper 6 is stuck on the abrasive block 11 by a double-sided adhesive tape; adjusting the telescopic driving device to enable the telescopic driving device to extend to the specified position of the inner wall of the cylinder sleeve 4, and adjusting the telescopic rod 22 to enable the telescopic rod 22 to drive the sanding head 1 to approach to the specified position of the inner wall of the cylinder sleeve 4 until the sanding head 1 is close to the specified position of the inner wall of the cylinder sleeve 4; the telescopic driving device drives the second connecting rod 23 to move repeatedly towards the direction far away from or close to the telescopic driving device; sanding is carried out 3 times by 100 times through the reciprocating motion of the sanding block 11, sanding is carried out repeatedly with a stroke of 20mm, the surface of the sanding block 11 is adapted to the curvature radius of the sanding block 11, the surface of the waterproof abrasive paper 6 is uniformly stressed, the waterproof abrasive paper 6 only bears the weight of the sanding block 11, and the waterproof abrasive paper 6 is replaced after each 100 times of reciprocating motion; and finally, after sanding, spraying distilled water for cleaning, and sucking by using a cotton ball to finish polishing the phosphate coating.

The surface size of the sanding block 11 is 20mm multiplied by 40mm, the weight of the sanding block 11 is 3kg, the size of the surface size of the sanding block 20mm multiplied by 40mm is just slightly smaller than the area of the set position of the cylinder sleeve 4, which is 25mm wide and 55mm long, therefore, when sanding in the set sanding area, the area outside the set sanding area is not influenced, and the influence on other areas of the cylinder sleeve 4 is avoided; and the sanding block 11 weighs 3kg, so that when sanding, the sanding area only bears the weight of the sanding block 11, the force of the sanding block 11 is not too small or too large, and the sanding is uniform and good in effect.

The embodiments in the present specification are described in a progressive manner, and the same or similar parts among the embodiments may be referred to each other, and each embodiment focuses on the differences from the other embodiments.

The above embodiments are only used to illustrate the technical solutions of the present application, and not to limit the present application; although the present application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications or substitutions do not depart from the spirit and scope of the present disclosure.

Claims (6)

1. A sanding tool is characterized by comprising a sanding head (1), a sanding block (11), a connecting rod (2) and a telescopic driving device;

the grinding head (1) is formed by radially and tangentially forming a plane on the side surface of a cylindrical structure, one surface of the grinding head (1) which is formed by radially and tangentially forming a plane on the side surface is provided with a grinding block (11), the grinding block (11) is arc-shaped, and the arc-shaped surface of the grinding block (11) is adapted to the curvature radius of the cylinder sleeve (4); the sand grinding block (11) is provided with waterproof sand paper (6);

the one end of sand bistrique (1) is passed through connecting rod (2) and is connected head rod (21), telescopic link (22) is connected in head rod (21), telescopic link (22) with head rod (21) has the contained angle, second connecting rod (23) is still connected in telescopic link (22), the direction of second connecting rod (23) with head rod (21) and the direction of motion of sand bistrique (1) is the same, just flexible drive arrangement is connected to the one end of second connecting rod (23).

2. Sanding tool according to claim 1, characterized in that the direction in which the centre of the sanding block (11) is perpendicular to the inner wall of the sanding position of the cylinder liner (4) is the same as the extension and retraction direction of the extension rod (22).

3. A sanding tool as defined in claim 1, characterized in that the sanding block (11) has a surface to which is bonded a waterproof abrasive paper (6), the waterproof abrasive paper (6) comprising, from top to bottom, an anti-clogging layer (61), a sanding layer (62), a first layer of double-sided adhesive (63), a water-repellent layer (64), a second layer of double-sided adhesive (65), a tough layer (66) and a third layer of double-sided adhesive (67).

4. A sanding tool as defined in claim 3, characterized in that the surface of the sanding layer (62) comprises sand grains of silicon carbide material and a synthetic glue.

5. Sanding tool according to claim 4, characterized in that the sandpaper (6) has a grit size of 800 degrees.

6. Sanding tool according to claim 1, characterized in that the sanding head (1) and the sanding block (11) are both made of steel.

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