Tool expanding structure for honing machine

Abstract

The utility model discloses a cutter expanding structure for a honing machine, which relates to the technical field of honing machines and comprises a case, a motor is fixedly arranged in the case, a rotating shaft of the motor movably penetrates through one end of the case and is fixedly connected with a driving shaft, and the end of the driving shaft is connected with a cutter expanding component through a fixing component. A protective cover is arranged outside the expansion knife assembly in a covering mode, a connecting ring is fixedly arranged at the top of the protective cover, and two sleeve rods which are symmetrically distributed about the center line of the machine box are fixedly arranged at the bottom of the machine box. When the expanding knife assembly is in reciprocating lifting displacement machining, the protective cover can always abut against the outer side of a hole of a honing workpiece, then scraped broken iron wires are blocked, and the problems that when an existing honing machine works, the expanding knife assembly rotates at a high speed, the scraped broken iron wires splash to the periphery under the action of centrifugal force, and the service life of the honing machine is prolonged are solved. And peripheral equipment can be damaged, and workers can be hurt.

Description

TECHNICAL FIELD

[0001] The utility model relates to honing machine technical field especially relates to a honing machine is with the structure of rising sword. BACKGROUND

[0002] Honing machine utilizes honing head honing workpiece finishing surface grinding machine, mainly used in automobile, tractor, hydraulic parts, bearing, aviation etc. manufacturing industry honing workpiece hole, for deep hole scraping machine tool, numerical control scraping roll bed, its honing machine when deep hole scraping, its tool bit needs to carry out the rising and shrinking movement.

[0003] The existing patent publication No. CN221474751U, entitled "a honing machine servo rising and shrinking structure" proposes that the servo motor directly controls the rotation of the drive shaft, which can drive the rising and shrinking shaft to lift, and the extrusion tool bit can be raised and shrunk. The mechanical structure is simple, the cost is low, the bottom is provided with a clamping pipe cylinder for clamping the tool bit, the installation is convenient, the tool bit is more convenient to replace, and the maintenance is convenient.

[0004] However, the honing machine in the above-mentioned honing machine has a high-speed rotating rising sword structure, so that the broken iron wire scraped off under the action of centrifugal force splashes around, which can damage the surrounding equipment and injure the workers. Therefore, it is necessary to provide a honing machine rising sword structure to solve the above-mentioned problems. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a honing machine rising sword structure to solve the above-mentioned problems of the existing honing machine, i.e. the high-speed rotating rising sword structure, so that the broken iron wire scraped off under the action of centrifugal force splashes around, which can damage the surrounding equipment and injure the workers.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a honing machine rising sword structure, comprising a machine box, a motor is fixedly arranged in the inside of the machine box, a rotating shaft of the motor is movably penetrated through one end of the machine box and is fixedly connected with a drive shaft, an end of the drive shaft is connected with a rising sword assembly through a fixed assembly;

[0007] An outer cover of the rising sword assembly is provided with a protective cover, a connecting ring is fixedly arranged at the top of the protective cover, two sleeve rods are fixedly arranged at the bottom of the machine box and are symmetrically distributed about the center line of the machine box, a telescopic rod is slidably arranged in the inside of the sleeve rod, one end of the telescopic rod movably extending out of the sleeve rod is fixedly connected with the connecting ring, a spring is fixedly connected between the connecting ring and the machine box and is sleeved on the outside of the sleeve rod and the telescopic rod, in the initial state, the height of the bottom of the protective cover is lower than the height of the bottom of the rising sword assembly, when the telescopic rod is completely retracted into the inside of the sleeve rod, the height of the bottom of the protective cover is equal to the height of the top of the rising sword assembly;

[0008] The machine box is connected with an external reciprocating lifting mechanism.

[0009] Preferably, the fixing assembly comprises a connecting flange fixedly arranged at the bottom of the driving shaft, six bolts in annular uniform distribution are arranged on the connecting flange, and the threaded rods of the bolts are screwed into the connecting flange and the expanding cutter assembly in sequence.

[0010] Preferably, the expanding cutter assembly comprises a connecting seat, a top disc and a bottom disc, the connecting seat is fixedly arranged at the bottom of the connecting flange through bolts, the top disc is fixedly arranged at the bottom of the connecting seat, a limiting column is fixedly connected between the connecting seat and the bottom disc, a sliding groove is fixedly arranged at the middle part of the top disc and the bottom disc, an expanding and contracting groove is arranged at the middle part of the limiting column, the sliding groove and the expanding and contracting groove are in communication with each other, two groups of expanding and contracting shafts are slidingly arranged between the two sliding grooves, the two groups of expanding and contracting shafts are fixedly connected through connecting rods, each group of expanding and contracting shafts comprises a cylindrical shaft and a conical shaft, the cylindrical shaft and the conical shaft are fixedly connected, four mounting grooves in annular uniform distribution are fixedly arranged on the side surface of the limiting column, the mounting grooves and the expanding and contracting groove are in communication with each other, an expanding and contracting plate is slidingly arranged in the mounting groove, two inclined surfaces are arranged on the side of the expanding and contracting plate which is movably extended into the expanding and contracting groove, the two inclined surfaces are respectively matched with the two conical shafts, a honing strip is fixedly arranged on the side of the expanding and contracting plate which is movably extended out of the expanding and contracting groove, the upper expanding and contracting shaft is connected with a power assembly for driving the lifting displacement of the upper expanding and contracting shaft, two first clamping grooves are fixedly arranged on the side surface of the expanding and contracting plate, and elastic rings are clamped in the first clamping grooves.

[0011] Preferably, the diameters of the top disc and the bottom disc are the same, and the diameter of the limiting column is smaller than the diameter of the top disc.

[0012] Preferably, the power assembly comprises a hydraulic rod, the hydraulic rod is fixedly arranged at the middle part of the connecting seat, and the extension end of the hydraulic rod is fixedly connected with one end of the upper sliding groove and the upper cylindrical shaft.

[0013] Preferably, in the initial state, the upper cylindrical shaft is completely located in the upper sliding groove, the inclined surface is completely matched with the conical shaft, and the elastic ring is matched with the limiting column.

[0014] Preferably, four limiting portions in annular uniform distribution are fixedly arranged at the outer ring of the limiting column, each limiting portion comprises two limiting plates, the expanding and contracting plate and the honing strip are clamped between the two limiting plates, two second clamping grooves are arranged on the side surface of the limiting plate, and the elastic ring is clamped in the second clamping grooves.

[0015] The technical effects and advantages of the utility model are as follows:

[0016] The protective cover can always be pressed against the outside of the hole of the honing workpiece when the expanding tool assembly is processed in reciprocating lifting displacement, thereby blocking the scraped iron wire fragments, and the problem that the scraped iron wire fragments are splashed around under the action of centrifugal force when the existing honing machine is working, thereby damaging the surrounding equipment and hurting the workers is solved.

[0017] Through the installation of the connecting flange, the expanding tool assembly can be disassembled and maintained after the bolts are unscrewed, and the installation and disassembly convenience of the expanding tool assembly is improved.

[0018] The two expansion and contraction shafts, the two inclined surfaces and the two elastic rings are arranged, the problem of uneven stress of the expansion and contraction plate is avoided, and the reciprocating displacement of the expansion and contraction plate is more stable.

[0019] When the expansion and contraction plate and the honing strip need to be replaced, the elastic ring is removed, the expansion and contraction plate and the honing strip can be taken out from the installation groove, and the installation and disassembly convenience of the expansion and contraction plate and the honing strip is improved.

[0020] The upper and lower surfaces and the two side surfaces of the expansion and contraction plate are limited in displacement, and the stability of the reciprocating displacement of the expansion and contraction plate is improved. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a three-dimensional structure schematic view of the expanding tool structure of the honing machine.

[0022] Figure 2 It is a sectional structure schematic view of the expanding tool structure of the honing machine.

[0023] Figure 3 It is a sectional structure schematic view when the telescopic rod is completely retracted into the sleeve rod.

[0024] Figure 4 It is a sectional structure schematic view of the expanding tool assembly.

[0025] Figure 5 It is a three-dimensional structure schematic view of the expanding tool assembly.

[0026] Figure 6 It is an internal structure schematic view of the limiting column.

[0027] In the drawing: 1, machine box; 2, motor; 3, driving shaft; 4, sleeve rod; 5, telescopic rod; 6, spring; 7, connecting ring; 8, protective cover; 9, connecting flange; 10, connecting seat; 11, top disc; 12, limiting column; 13, bottom disc; 14, hydraulic rod; 15, cylindrical shaft; 16, conical shaft; 17, expansion and contraction plate; 18, honing strip; 19, elastic ring; 20, limiting plate. DETAILED DESCRIPTION

[0028] The utility model provides Figures 1-6The shown one kind is the expansion tool structure of honing machine, including machine box 1, the inside fixed setting of machine box 1 is equipped with motor 2, the rotating shaft of motor 2 is movably through the one end fixed connection of machine box 1 drive shaft 3, the end of drive shaft 3 is connected with expansion tool assembly through fixed assembly, machine box 1 is connected with external reciprocating lifting mechanism, when honing machine works, start motor 2, so that drive shaft 3 drives expansion tool assembly to rotate, the hole of honing workpiece is scraped and is processed, simultaneously through external reciprocating lifting mechanism, drive machine box 1 reciprocating lifting displacement, make expansion tool assembly scrape even each other in the hole of honing workpiece Interlaced texture.

[0029] Considering that the expansion tool assembly rotates at high speed when the honing machine works, the broken iron wires scraped off will splash around under the action of centrifugal force, which will damage the surrounding equipment and injure the workers, therefore, a protective cover 8 is arranged outside the expansion tool assembly, the top of the protective cover 8 is fixedly provided with a connecting ring 7, the bottom of the machine box 1 is fixedly provided with two sleeve rods 4 which are symmetrically distributed about the center line of the machine box 1, the inside of the sleeve rod 4 is slidably provided with an extension rod 5, one end of the extension rod 5 movably extending out of the sleeve rod 4 is fixedly connected with the connecting ring 7, the connecting ring 7 and the machine box 1 are fixedly connected with a spring 6 which is movably sleeved at the outer circle of the sleeve rod 4 and the extension rod 5, in the initial state, the height of the bottom of the protective cover 8 is lower than the height of the bottom of the expansion tool assembly, when the extension rod 5 is completely retracted into the inside of the sleeve rod 4, the height of the bottom of the protective cover 8 is equal to the height of the top of the expansion tool assembly.

[0030] Specifically, when the external reciprocating lifting mechanism drives the machine box 1 to displace downward, the protective cover 8 is abutted against the outside of the hole of the honing workpiece, as the machine box 1 continues to displace downward, the extension rod 5 is retracted into the sleeve rod 4, and the spring 6 is compressed, when the machine box 1 displaces upward, the spring 6 restores elasticity and pushes the extension rod 5 to extend out of the sleeve rod 4, so that the protective cover 8 can always abut against the outside of the hole of the honing workpiece when the expansion tool assembly displaces reciprocatingly and upwardly, thereby blocking the broken iron wires scraped off, solving the problem that the broken iron wires scraped off will splash around under the action of centrifugal force when the expansion tool assembly rotates at high speed during the work of the existing honing machine, which will damage the surrounding equipment and injure the workers.

[0031] Further, the fixed assembly includes a connecting flange 9 which is fixedly arranged at the bottom of the drive shaft 3, six bolts which are uniformly distributed in a ring shape are arranged on the connecting flange 9, the threaded rods of the bolts are sequentially screwed into the connecting flange 9 and the expansion tool assembly, through the installation of the connecting flange 9, the expansion tool assembly can be disassembled and repaired after the bolts are unscrewed, improving the installation and disassembly convenience of the expansion tool assembly.

[0032] Further, the expanding cutter assembly comprises a connecting seat 10, a top disc 11 and a bottom disc 13, the connecting seat 10 is arranged at the bottom of the connecting flange 9 by bolt fixing, the top disc 11 is fixedly arranged at the bottom of the connecting seat 10, the connecting seat 10 and the bottom disc 13 are fixedly connected through a limiting column 12, the middle part of the top disc 11 and the bottom disc 13 is fixedly arranged with a sliding groove, the middle part of the limiting column 12 is arranged with an expanding and contracting groove, the sliding groove and the expanding and contracting groove are communicated with each other, two groups of expanding and contracting shafts are slidingly arranged between the two sliding grooves, the two groups of expanding and contracting shafts are fixedly connected through a connecting rod, each group of expanding and contracting shafts comprises a cylindrical shaft 15 and a conical shaft 16, the cylindrical shaft 15 and the conical shaft 16 are fixedly connected, four annularly and uniformly distributed mounting grooves are fixedly arranged on the side surface of the limiting column 12, the mounting grooves and the expanding and contracting groove are communicated with each other, an expanding and contracting plate 17 is slidingly arranged in the mounting groove, one side of the expanding and contracting plate 17 which is movably extended into the expanding and contracting groove is arranged with two inclined surfaces, the two inclined surfaces are respectively and mutually abutted with the two conical shafts 16, the other side of the expanding and contracting plate 17 which is movably extended out of the expanding and contracting groove is fixedly arranged with a honing strip 18, the upper expanding and contracting shaft is connected with a power assembly which drives the upper expanding and contracting shaft to move up and down, two first clamping grooves are fixedly arranged on the side surface of the expanding and contracting plate 17, a resilient ring 19 is clamped in the first clamping groove, the power assembly comprises a hydraulic rod 14, the hydraulic rod 14 is fixedly arranged in the middle part of the connecting seat 10, one end of the hydraulic rod 14 which is movably extended into the upper sliding groove is fixedly connected with the upper cylindrical shaft 15.

[0033] The starting motor 2 drives the expanding cutter assembly to rotate and lift, the hydraulic rod 14 is started in positive and reverse directions, drives the two groups of expanding and contracting shafts to move up and down, in addition, in the initial state, the upper cylindrical shaft 15 is completely located in the upper sliding groove, the inclined surface is completely abutted with the conical shaft 16, and the resilient ring 19 is mutually abutted with the limiting column 12, when the expanding and contracting shafts move downward, the conical shaft 16 abuts against the inclined surface, forces the expanding and contracting plate 17 to slide outward, thereby drives the honing strip 18 to slide outward, and scrapes the hole of the honing workpiece, when the expanding and contracting shafts move upward, the resilient ring 19 restores the elastic force, drives the expanding and contracting plate 17 to reset, thereby drives the honing strip 18 to move up and down, through the two groups of expanding and contracting shafts, the two inclined surfaces and the two resilient rings 19, the problem that the expanding and contracting plate 17 is not balanced in force is avoided, and the reciprocating displacement of the expanding and contracting plate 17 is more stable.

[0034] When the expanding and contracting plate 17 and the honing strip 18 need to be replaced, the resilient ring 19 is taken off, the expanding and contracting plate 17 and the honing strip 18 can be taken out of the mounting groove, the convenience of installing and dismounting the expanding and contracting plate 17 and the honing strip 18 is improved.

[0035] Further, the diameters of the top disc 11 and the bottom disc 13 are the same, and the diameter of the limiting column 12 is smaller than the diameter of the top disc 11, through the arrangement, the upper and lower surfaces of the expanding and contracting plate 17 are limited, and the expanding and contracting plate 17 can stably slide between the mounting groove and the expanding and contracting groove.

[0036] Further, the outer ring of the limiting column 12 is fixedly provided with four annular limiting parts which are uniformly distributed, each of which comprises two limiting plates 20, the expansion plate 17 and the honing strip 18 are clamped between the two limiting plates 20, the side surface of the limiting plate 20 is provided with two second clamping grooves, and the elastic ring 19 is clamped in the inner part of the second clamping groove. In this way, the two side surfaces of the expansion plate 17 are limited, and the stability of the reciprocal displacement of the expansion plate 17 is further improved.

Claims

1. A honing machine with a expanding tool structure, comprising a machine box (1), characterized in that: The inside of the case (1) is fixedly provided with a motor (2), a rotating shaft of the motor (2) is fixedly connected with a driving shaft (3) at one end of the case (1), and the end of the driving shaft (3) is connected with a cutter expanding assembly through a fixing assembly; The cutter expanding assembly is provided with a protective cover (8), the top of the protective cover (8) is fixedly provided with a connecting ring (7), the bottom of the case (1) is fixedly provided with two sleeve rods (4) which are symmetrically distributed about the center line of the case (1), the inside of the sleeve rod (4) is slidably provided with an extension rod (5), one end of the extension rod (5) which is slidably extended out of the sleeve rod (4) is fixedly connected with the connecting ring (7), the connecting ring (7) and the case (1) are fixedly connected with a spring (6) which is sleeved on the outer circle of the sleeve rod (4) and the extension rod (5), in the initial state, the height of the bottom of the protective cover (8) is lower than the height of the bottom of the cutter expanding assembly, when the extension rod (5) is completely retracted into the inside of the sleeve rod (4), the height of the bottom of the protective cover (8) is equal to the height of the top of the cutter expanding assembly. The case (1) is connected with an external reciprocating lifting mechanism.

2. The expanding tool structure for a honing machine according to claim 1, wherein: The fixing assembly comprises a connecting flange (9) which is fixedly arranged at the bottom of the driving shaft (3), six bolts which are uniformly distributed in a ring shape are arranged on the connecting flange (9), and the threaded rods of the bolts are sequentially screwed into the connecting flange (9) and the cutter expanding assembly.

3. The expanding tool structure for a honing machine according to claim 2, wherein: The cutter expanding assembly comprises a connecting seat (10), a top disc (11) and a bottom disc (13), the connecting seat (10) is fixedly arranged at the bottom of the connecting flange (9) through the bolts, the top disc (11) is fixedly arranged at the bottom of the connecting seat (10), the connecting seat (10) and the bottom disc (13) are fixedly connected with a limiting column (12), the middle part of the top disc (11) and the bottom disc (13) is fixedly provided with a sliding groove, the middle part of the limiting column (12) is provided with an expanding and contracting groove, the sliding groove and the expanding and contracting groove are in communication with each other, two groups of expanding and contracting shafts are slidably arranged between the two sliding grooves, the two groups of expanding and contracting shafts are fixedly connected through connecting rods, each group of expanding and contracting shafts comprises a cylindrical shaft (15) and a conical shaft (16), the cylindrical shaft (15) and the conical shaft (16) are fixedly connected, four mounting grooves which are uniformly distributed in a ring shape are fixedly arranged on the side surface of the limiting column (12), the mounting grooves and the expanding and contracting groove are in communication with each other, an expanding and contracting plate (17) is slidably arranged in the inside of the mounting groove, two inclined surfaces are arranged on the side of the expanding and contracting plate (17) which is slidably extended into the inside of the expanding and contracting groove, the two inclined surfaces are respectively and mutually abutted with the two conical shafts (16), a honing strip (18) is fixedly arranged on the side of the expanding and contracting plate (17) which is slidably extended out of the expanding and contracting groove, the upper expanding and contracting shaft is connected with a power assembly which drives the lifting displacement of the upper expanding and contracting shaft, two first clamping grooves are fixedly arranged on the side surface of the expanding and contracting plate (17), and elastic rings (19) are clamped in the inside of the first clamping grooves.

4. The expanding tool structure for a honing machine according to claim 3, wherein: The diameters of the top disc (11) and the bottom disc (13) are the same, and the diameter of the limiting column (12) is smaller than the diameter of the top disc (11).

5. The expanding tool structure for honing machines according to claim 3, characterized in that: The power assembly comprises a hydraulic rod (14) fixedly arranged at the middle part of the connecting seat (10), and the telescopic end of the hydraulic rod (14) is movably inserted into one end of the upper chute and fixedly connected with the upper cylindrical shaft (15).

6. The expanding tool structure for honing machines according to claim 5, characterized in that: In the initial state, the upper cylindrical shaft (15) is completely located in the upper chute, the inclined surface and the conical shaft (16) are completely attached, and the elastic ring (19) and the limiting column (12) are attached to each other.

7. The expanding tool structure for honing machines according to claim 6, characterized in that: Four limiting portions in the form of annular rings are uniformly arranged at the outer ring of the limiting column (12), each limiting portion comprises two limiting plates (20), the expansion and contraction plate (17) and the honing strip (18) are clamped between the two limiting plates (20), the side surface of the limiting plate (20) is provided with two second clamping grooves, and the elastic ring (19) is clamped in the inner part of the second clamping groove.

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