Novel light honing knife

Abstract

The utility model discloses a novel light honing knife which comprises a rectangular shell, an adjusting cone channel is formed in the center of the shell, and arc surfaces are arranged on the two sides of the short edge of the shell. Through holes are symmetrically formed in the arc surfaces on the two sides of the shell along the central axes of the arc surfaces, the through holes extend inwards to be communicated with the adjusting cone channel, and a plurality of sets of hollow channels are formed between the through holes and between the through holes and the long edges of the shell; a fixing rod is arranged in the through hole, and a first mounting groove and a second mounting groove are symmetrically formed in the top of the fixing rod; a sand bar is embedded into the first mounting groove, a pressing block is embedded into the second mounting groove, and the pressing block is connected with the fixing rod through a bolt after pressing the sand bar; an ejector rod is arranged at the bottom of the fixing rod, and the tail end of the ejector rod extends into the adjusting cone channel. According to the honing knife, the shell is hollowed out, the weight of the honing knife body is further reduced, and meanwhile the sanding strip body is stable in installation and easy to disassemble and maintain.

Description

Technical Field

[0001] The utility model relates to the field of hole part processing, in particular to a novel light honing tool. Background Art

[0002] As a key component in the hydraulic system, the smoothness and precision of the inner wall of the hydraulic cylinder has a vital impact on the overall performance of the system. With the continuous development of hydraulic technology, the requirements for the smoothness, wear resistance and sealing of the inner wall of the hydraulic cylinder are becoming higher and higher.

[0003] The traditional process is to use a honing tool to grind the high points on the inner wall surface flat. The honing tool clamps the sanding strip through a clamping structure. The sanding strip has an unlimited structure, which will result in slight axial or lateral displacement and a decrease in accuracy. At the same time, most of the current honing tools are cylindrical, with large size and weight, so the load on the motor drive shaft is slightly larger. The lightweight structure makes it easier to extend the life of the motor, further reducing the maintenance frequency and improving production efficiency. Utility Model Content

[0004] The utility model aims to provide a novel lightweight honing knife which has compact structure, light weight and is easy to maintain.

[0005] The purpose of the utility model is achieved as follows: a novel lightweight honing tool comprises a shell, the shell is rectangular, an adjusting cone channel is arranged in the center of the shell, and arc surfaces are arranged on both sides of the short side of the shell; through holes are symmetrically arranged on the arc surfaces on both sides of the shell along the central axis of the arc surfaces, the through holes extend inwardly and communicate with the adjusting cone channel, and multiple groups of hollow channels are arranged between the through holes and between the through holes and the long sides of the shell;

[0006] A fixing rod is provided in the through hole, and a first mounting groove and a second mounting groove are symmetrically provided on the top of the fixing rod; the first mounting groove is embedded in the sand strip, and the second mounting groove is embedded in the pressure block, and the pressure block is connected to the fixing rod through bolts after pressing the sand strip; a push rod is provided at the bottom of the fixing rod, and the end of the push rod extends into the adjusting cone channel.

[0007] Preferably, the pressing blocks are composed of a fixing portion and an abutting portion to form an inverted L-shaped structure; a countersunk hole is provided on the outer side of the fixing portion, and the fixing portion is connected to the fixing rod by bolts passing through the countersunk hole.

[0008] Preferably, the sand strip consists of an embedding portion and a friction portion to form a convex structure.

[0009] Preferably, an insertion groove is provided on the inner side of the bottom of the first installation groove, one end of the embedded portion is placed in the insertion groove, and the other end of the embedded portion is pressed downward by the abutment portion.

[0010] Preferably, a protrusion is provided on the inner side of the sand strip, and a round hole 6012 is provided above the insertion groove, and the protrusion is inserted and matched with the round hole.

[0011] Preferably, the through hole consists of a accommodating cavity and a sliding cavity, the diameter of the sliding cavity is smaller than the diameter of the accommodating cavity, the diameter of the fixing rod is larger than the diameter of the top rod, the main body of the fixing rod is placed in the accommodating cavity, and the main body of the top rod is placed in the sliding cavity.

[0012] Compared with the prior art, the utility model is beneficial in that:

[0013] 1. The traditional cylindrical surface structure is optimized into a rectangular shape, which reduces the weight of a part of the shell compared to the traditional cylindrical structure. At the same time, it reduces the number of sand strips, fixing rods and other structures, making it lighter. At the same time, multiple sets of hollow channels are set inside the shell, which further reduces the weight without affecting the structural strength.

[0014] 2. The top structure of the sand strip and the fixing rod is optimized to make the sand strip more stable after being fixed. At the same time, protrusions and round holes are set to further prevent the sand strip from shifting and the sand strip will not fall off easily. At the same time, the bolt connection makes it convenient and quick to replace the sand strip. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the utility model.

[0016] Figure 2 It is a structural schematic diagram of the top of the fixing rod of the utility model.

[0017] Among them, 1 is a shell, 2 is an adjusting cone channel, 3 is an arc surface, 4 is a through hole, 401 is a receiving cavity, 402 is a sliding cavity, 5 is a hollow channel, 6 is a fixing rod, 601 is a first mounting groove, 601 is an insertion groove, 6012 is a circular hole, 602 is a second mounting groove, 7 is a sand strip, 701 is an embedded part, 702 is a friction part, 703 is a protrusion, 8 is a pressure block, 801 is a fixing part, 8011 is a countersunk hole, 802 is a resistance part, and 9 is a push rod. DETAILED DESCRIPTION

[0018] The following is a description of the implementation of the present invention by means of specific embodiments. People familiar with the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0019] It should be noted that in the description of the present utility model, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the utility model product is usually placed when in use, which are only for the convenience of describing the present utility model and simplifying the description, and 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 therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third" and the like are only used to distinguish the description, and cannot be understood as indicating or implying relative importance. Terms such as "horizontal", "vertical", and "overhanging" do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0020] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection, it can be a mechanical connection, it can be an electrical connection, it can be a direct connection, it can be indirectly connected through an intermediate medium, and it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0021] like Figure 1-2 As shown, a novel lightweight honing tool comprises a shell 1, the shell 1 is rectangular, an adjusting cone channel 2 is provided in the center of the shell 1, an adjusting cone (not shown in the figure) is provided inside, and arc surfaces 3 are provided on both sides of the short side of the shell 1; through holes 4 are symmetrically provided on the arc surfaces 3 on both sides of the shell 1 along the central axis of the arc surfaces 3, the through holes 4 extend inwardly and are connected with the adjusting cone channel 2, and multiple groups of hollow channels 5 are provided between the through holes 4 and between the through holes 4 and the long sides of the shell 1, so as to further reduce the weight and reduce the load on the motor drive shaft while ensuring the structural strength;

[0022] A fixing rod 6 is provided in the through hole 4, and a first mounting groove 601 and a second mounting groove 602 are symmetrically provided on the top of the fixing rod 6; the first mounting groove 601 is embedded in the sand strip 7, and the second mounting groove 602 is embedded in the pressure block 8, and the pressure block 8 is connected to the fixing rod 6 through bolts after pressing the sand strip 7; a push rod 9 is provided at the bottom of the fixing rod 6, and the end of the push rod 9 extends into the adjusting cone channel 2, and the push rod is pushed outward through the internal adjusting cone, thereby ejecting the sand strip synchronously.

[0023] like Figure 2As shown, the pressing block 8 is composed of a fixing portion 801 and a conflicting portion 802, forming an inverted L-shaped structure; a countersunk hole 8011 is provided on the outer side of the fixing portion 801, and the fixing portion 801 is connected to the fixing rod 6 by bolts passing through the countersunk hole 8011; at the same time, the size of the pressing block is optimized to prevent the main body of the pressing block from being exposed outside the second mounting groove, and further, the main body of the bolt is located in the countersunk hole and is not exposed, and will not conflict with the through hole, so that the main body of the fixing rod can move conveniently in the through hole.

[0024] like Figure 2 As shown, the sand strip 7 is composed of an embedding portion 701 and a friction portion 702 to form a convex structure. The length of the embedding portion 701 is slightly smaller than the length of the bottom of the first installation groove 601 to ensure that after the sand strip is installed, the embedding portion at the bottom will not expose the first installation groove to facilitate the subsequent installation of the pressing block.

[0025] like Figure 2 As shown, an insertion groove 6011 is provided on the inner side of the bottom of the first installation groove 601, one end of the embedded part 701 is placed in the insertion groove 6011, and the other end of the embedded part is pressed downward by the abutment part 802. Both sides of the embedded part are pressed to effectively avoid lateral displacement of the sand strip, making it more stable after installation.

[0026] like Figure 2 As shown, a protrusion 703 is provided on the inner side of the sand strip 7, and a round hole 6012 is provided above the insertion groove 6011. The protrusion 703 is inserted and matched with the round hole 6012. When the sand strip is installed, the side protrusion is matched with the round hole, which effectively avoids axial displacement of the sand strip.

[0027] like Figure 1 As shown, the through hole 4 is composed of a accommodating cavity 401 and a sliding cavity 402. The diameter of the sliding cavity 402 is smaller than the diameter of the accommodating cavity 401. The diameter of the fixing rod 6 is larger than the diameter of the push rod 9. The main body of the fixing rod is placed in the accommodating cavity. The main body of the push rod is placed in the sliding cavity. The main body of the fixing rod runs to the bottom of the accommodating cavity to form a limit, thereby ensuring that the main body of the sanding strip can be exposed outside the shell to achieve grinding.

[0028] The working principle of the utility model is explained as follows: during assembly, the embedded part of the sanding strip is matched with the insertion groove, and the protrusion is aligned with the circular hole, and then the sanding strip is pressed by the pressing block. When in use, the sanding strip is expanded or contracted by the internal adjustment cone to achieve the grinding of the inner wall of the pipe with different apertures. The sanding strip is connected by bolts, and disassembly and maintenance are convenient and quick; at the same time, the shell is designed to be lightweight, which reduces the overall weight, reduces the load on the motor drive shaft, and extends the service life of the motor.

[0029] The above-described embodiments are merely descriptions of preferred implementations of the present invention, and are not intended to limit the concept and scope of the present invention. Without departing from the design concept of the present invention, various modifications and improvements made by ordinary personnel in the field to the technical solution of the present invention should fall within the protection scope of the present invention, and the technical contents of the present invention for protection have been fully recorded in the claims.

Claims

1. A novel lightweight honing tool, comprising a housing, characterized in that: The shell is rectangular, with an adjustment cone channel in the center of the shell, and arc surfaces on both sides of the short side of the shell; through holes are symmetrically arranged on the arc surfaces on both sides of the shell along the central axis of the arc surfaces, and the through holes extend inwardly to communicate with the adjustment cone channel, and multiple groups of hollow channels are arranged between the through holes and between the through holes and the long sides of the shell; A fixing rod is provided in the through hole, and a first mounting groove and a second mounting groove are symmetrically provided on the top of the fixing rod; the first mounting groove is embedded in the sand strip, and the second mounting groove is embedded in the pressure block, and the pressure block is connected to the fixing rod through bolts after pressing the sand strip; a push rod is provided at the bottom of the fixing rod, and the end of the push rod extends into the adjusting cone channel.

2. A novel lightweight honing tool according to claim 1, characterized in that: The pressing blocks are composed of a fixing part and a contact part, forming an inverted L-shaped structure; a countersunk hole is arranged on the outer side of the fixing part, and the fixing part is connected to the fixing rod by bolts passing through the countersunk hole.

3. A novel lightweight honing tool according to claim 1, characterized in that: The sand strip is composed of an embedding part and a friction part to form a convex structure.

4. A novel lightweight honing tool according to claim 3, characterized in that: An insertion groove is provided at the inner side of the bottom of the first installation groove, one end of the embedding portion is placed in the insertion groove, and the other end of the embedding portion is pressed downward by the abutment portion.

5. A novel lightweight honing tool according to claim 4, characterized in that: A protrusion is arranged on the inner side of the sand strip, and a round hole is arranged above the insertion groove, and the protrusion is inserted and matched with the round hole.

6. A novel lightweight honing tool according to claim 1, characterized in that: The through hole is composed of a receiving cavity and a sliding cavity, the diameter of the sliding cavity is smaller than the diameter of the receiving cavity, the diameter of the fixing rod is larger than the diameter of the push rod, the main body of the fixing rod is placed in the receiving cavity, and the main body of the push rod is placed in the sliding cavity.

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