CN103143753A - Disc Reamer - Google Patents

Abstract

The present invention discloses a disc reamer, comprising a spindle connected to an output shaft of a motor; one end of the spindle is connected to a circular aperture adjustment disk, the aperture adjustment disk is rotatably mounted in a cutter disc arranged at its front end, and a chiseled groove which is nested and matched with the aperture adjustment disk is provided on the rear side of the cutter disc; at least one pair of blade assemblies which are symmetrically arranged relative to the center of the cutter disc are provided in the radial direction of the front side of the cutter disc, the blade assembly comprises a blade, a cutter seat head and a cutter seat driving block fixed on the cutter seat head, the blade is vertically fixed on the cutter seat head, two sides of the connection between the cutter seat head and the cutter seat driving block form an "I"-shaped groove, and the corresponding cutter disc is radially provided with an inverted "T"-shaped groove, and the "I"-shaped groove at the connection between the cutter seat head and the cutter seat driving block is mounted in the inverted "T"-shaped groove of the cutter disc and can slide radially; the inner side of the aperture adjustment disk is provided with an involute spiral groove which arranges the entire disc surface, and the corresponding bottom side of the cutter seat driving block is provided with a plurality of tooth blocks which match the spiral groove.

Description

Disc Reamer

【Technical field】

The present invention relates to drilling equipment, and more particularly to disc reamers.

【Background technique】

At present, electric drills or manual drills are generally used when drilling or opening holes in existing boards such as wood boards, plastic boards, and metal boards. For holes with different diameters, it is often necessary to replace drill bits or reaming devices with different diameters. Opening holes with different diameters requires frequent replacement of drill bits or reaming devices during processing. The operation is complicated. Correspondingly, multiple drill bits or reaming devices with different diameters often need to be stocked, which increases the tool cost in the process of drilling or reaming. , reducing work efficiency.

【Content of invention】

The invention provides a disk type reamer which is easy to operate, saves tool cost and is convenient for processing different hole diameters.

In order to realize the above-mentioned purpose of the invention, the technical scheme that the present invention adopts is:

Disc type reamer, including a main shaft connected to the output shaft of the motor; one end of the main shaft is connected with a circular aperture adjustment disc, which is rotatably set in the cutter head set at its front end, and the rear side of the cutter head is set There is a fitting groove nested with the aperture adjustment disc; the radial direction of the front side of the cutter head is provided with at least one pair of blade assemblies arranged symmetrically with respect to the center of the cutter head, and the blade assembly includes a blade, a knife seat head and It consists of a knife seat drive block fixed on the knife seat head, and the blade is fixed vertically on the knife seat head. The two sides of the connection between the knife seat head and the knife seat drive block form "I" grooves, and the corresponding cutter head radial direction There is an inverted "T" slot, and the "I" slot at the joint between the tool holder head and the tool holder drive block is set in the inverted "T" slot of the cutter head and can slide radially; the aperture adjustment disc The inner side is provided with an involute spiral groove arranged on the entire disk surface, and the bottom side of the corresponding tool holder driving block is provided with a plurality of tooth blocks that cooperate with the spiral groove; the rotating aperture adjustment disk drives all the symmetrically arranged tool holder driving blocks and tool holders The head moves toward or against each other along the "T" groove of the cutter head, and adjusts the size of the pre-machined hole diameter of the pair of tool holder heads arranged in the diameter direction of the cutter head and the upper blade.

Further, the front of the cutter head is also provided with a scale line for determining the size of the pre-machined hole of the blade on the cutter head.

Further, the drive block of the knife seat is in the shape of "convex", and the head of the knife seat is provided with a groove that matches the protrusion of the drive block of the knife seat, and the protrusion of the drive block of the knife seat is inserted into the groove of the head of the knife seat It is fixed by the positioning screw and the head of the knife seat sliding along the cutter head is locked and fixed on the cutter head.

Further, the outer side of the aperture adjustment disc is provided with a plurality of arc-shaped holes that communicate with the inner spiral groove.

Further, a dust cover is also installed on the main shaft.

Further, the rear side of the dust cover is also provided with a bayonet assembly for locking the aperture adjustment disc relative to the cutter head, and the bayonet assembly includes a bayonet outer nut, a bayonet spring, a bayonet and a bayonet Inner hollow head screw, the dust cover is provided with a bayonet hole that matches the bayonet, the bayonet spring is sleeved on the bayonet and installed on the rear side of the bayonet hole of the dust cover and fixed to one end of the bayonet through the bayonet outer nut , the other end of the bayonet is fitted with the hollow head screw inside the bayonet and matched with the arc-shaped hole on the aperture adjustment disc.

Further, a center drill is installed at the center of the front surface of the cutterhead to facilitate the centering of the hole to be drilled.

Further, a main spring is installed on the rear side of the main shaft to facilitate the pretensioning of the blade on the cutterhead to the workpiece to be processed.

Further, the front and rear sides of the knife seat are respectively provided with blade fixing grooves, and the blades are fixed to the blade fixing grooves on the front side or the rear side of the knife seat by screws.

Further, the cutter head is also provided with a cutter holder limit card that prevents the cutter holder head from sliding out of the "T" groove.

The beneficial effects of the present invention are:

The two sides of the connection between the tool holder head and the tool holder drive block of the present invention form "I" grooves, which are set in the inverted "T" groove of the cutter head and can slide radially. Inside the aperture adjustment disk, there is a hole for arranging the entire disk surface. Involute spiral groove, the bottom side of the corresponding tool holder drive block is provided with a plurality of tooth blocks that match the spiral groove, and the rotating aperture adjustment disc drives all the symmetrically arranged tool holder heads to face each other or along the "T" groove of the cutter head Move opposite to each other, adjust the size of the tool seat head set in pairs in the diameter direction of the cutter head and the pre-machined aperture of the upper blade, and then lock and fix the tool seat head sliding along the cutter head on the cutter head through the positioning screw; When using the cutter head, you only need to adjust the multiple blade assemblies equipped with it according to the scale line on the cutter head, and then you can automatically adjust the size of the pre-processed aperture. It is not necessary to frequently replace drills with different diameters or The hole reaming device is easy to operate, which greatly reduces the tool cost of the equipment and improves the processing efficiency.

【Description of drawings】

Fig. 1 is a schematic diagram of an explosion structure of the present invention;

Fig. 2 is the enlarged schematic diagram of the front view structure of the aperture adjustment disc of the present invention;

Fig. 3 is an enlarged schematic view of the side sectional structure of Fig. 2;

Fig. 4 is an enlarged schematic diagram of the rear view structure of the aperture adjustment disc of the present invention;

Fig. 5 is an enlarged schematic view of the front exploded structure of the cutter head and the blade assembly of the present invention;

Fig. 6 is an enlarged schematic diagram of the front structure of the cutterhead of the present invention.

FIG. 7 is an enlarged schematic view of the side sectional structure of FIG. 6;

Fig. 8 is an enlarged schematic diagram of the front view three-dimensional explosive structure of the blade assembly of the present invention;

Fig. 9 is an enlarged schematic diagram of a side-view three-dimensional explosive structure of the blade assembly of the present invention;

Fig. 10 is an enlarged schematic view of the three-dimensional structure of the blade assembly of the present invention;

Fig. 11 is an enlarged schematic view of the front structure of the blade of the present invention;

Fig. 12 is an enlarged schematic view of the three-dimensional structure of the tool holder head of the present invention;

Fig. 13 is an enlarged schematic view of the three-dimensional structure of the driving block of the tool seat of the present invention.

【Detailed ways】

The disc reamer, as shown in Figures 1 to 13, includes a main shaft 1 connected to the output shaft of the motor; one end of the main shaft 1 is connected with a circular aperture adjustment disc 2, and the aperture adjustment disc 2 is rotatably mounted on it In the cutterhead 3 provided at the front end, the rear side of the cutterhead 3 is provided with a fitting groove 30 which is nested and matched with the aperture adjustment disk 2; The blade assembly 5 that is arranged symmetrically, described blade assembly 5 comprises blade 50, knife seat head 51 and the knife seat driving block 52 that is fixed on the knife seat head 51 and is formed, and blade 50 is vertically fixed on the knife seat head 51, on the knife seat The front and rear sides of the head 51 are respectively provided with blade fixing grooves 510 , and the blade 50 is fixed in the blade fixing grooves 510 on the front side or the rear side of the knife seat head 51 by screws 500 . As shown in Fig. 1, Fig. 8 to Fig. 10, the two sides of the connection between the tool seat head 51 and the tool seat driving block 52 form "I" grooves 511, and the corresponding cutter head 3 is radially provided with an inverted "T". ""-shaped groove 31, the "I" groove 511 at the connection between the tool holder head 51 and the tool holder drive block 52 is set in the inverted "T" groove of the cutter head 3 and can slide radially; as shown in Figures 1 to 9 As shown, an involute spiral groove 20 arranged on the entire disk surface is provided on the inner side of the aperture adjustment disk 2, and five tooth blocks 520 are respectively matched with different spiral grooves on the bottom side of the corresponding knife seat driving block 52. The outer side of the aperture adjustment disc 2 is also provided with a plurality of arc-shaped holes 21 connected with the inner spiral groove 20; the rotation of the aperture adjustment disc 2 drives all the symmetrically arranged knife holder heads 51 to face each other along the "T" groove 31 of the cutter disc 3 or Move opposite to each other, adjust the size of the pre-machined aperture of the tool seat head 51 and the upper blade 50 that are arranged in pairs on the diameter direction of the cutter head 3, and the cutter head 3 is also provided with a "T" groove 31 to prevent the tool seat head 51 from slipping out. The knife seat limit card 32 of.

As shown in Fig. 1 and Fig. 6, also be provided with the scale line 6 of pre-processing aperture size between the blades 50 on the cutter head 3 on the front of the cutter head 3, it is convenient to adjust it by the scale line 6 on the cutter head 3 A plurality of blade assemblies 5 move toward or away from each other to reach a predetermined diameter for adjusting the machining aperture; in addition, the main shaft 1 is also equipped with a dust cover 7 that prevents sawdust from splashing during reaming processing, and is placed in the center of the front surface of the cutter head 3. Also be equipped with the center drill 10 that is convenient to centering to be opened, also be installed on the main spring 8 that is convenient to the blade on the cutter head 3 pretightening on workpiece to be processed on main shaft 1 rear side.

As shown in Fig. 5, Fig. 8 to Fig. 10, and Fig. 13, the knife seat driving block 52 is in the shape of "convex", and the knife seat head 51 is provided with a groove that cooperates with the convex head 521 of the knife seat driving block 52 512 , the protruding head 521 of the knife seat driving block 52 is inserted into the groove 512 of the knife seat head 51 and fixed by the positioning screw 522 , and the knife seat head 51 sliding along the cutter head 3 is locked and fixed on the cutter head 3 .

As shown in Fig. 1, a bayonet assembly 9 for locking the aperture adjustment disc 2 to rotate relative to the cutter head 3 is also provided on the rear side of the dust cover 7, and the bayonet assembly 9 includes a bayonet outer nut 90, a bayonet spring 91. The bayonet pin 92 and the hollow head screw 93 inside the bayonet pin. The dust cover 7 is provided with a bayonet hole 70 that cooperates with the bayonet pin 92. One end of the bayonet pin 92 passes through the bayonet hole 70 of the dust cover 7. The bayonet spring 91 is sleeved on the outside of the bayonet 92 and fixed on the bayonet 92 by the bayonet outer nut 90. The other end of the bayonet 92 is installed with a bayonet screw 93 inside the bayonet. The arc-shaped hole 21 matches. The main shaft 1 rear side is provided with a through hole a through which the tool is inserted to facilitate the control or rotation of the main shaft when adjusting the machining aperture of the blade.

During the use of the present invention, when the machining aperture of the blade 50 needs to be adjusted, at first, loosen the positioning screw 522 fastened to each tool seat head 51 on the cutter head 3, that is, by loosening the positioning screw 522, the fixed knife The connection between the seat head 51 and the knife seat driving block 52 is loose, so that the blade assembly 5 is not locked on the cutter head 3, and then the detent 92 on the rear side of the dust cover 7 is pressed, and the other end of the detent 92 passes through the detent. The hollow head screw 93 cooperates with an arc-shaped hole 21 on the aperture adjustment disc 2 to control the cutter head 3 from rotating. The spiral groove 20 cooperates with the tooth block 520 on the bottom side of the tool holder driving block 52, and the aperture adjustment disc 2 is rotated counterclockwise or clockwise to drive all the symmetrically arranged tool holder heads 51 along the "T" groove of the cutter head 3. 31 move toward or opposite to each other, adjust the size of the pre-processed aperture of the blade assembly 5 that is arranged in pairs on the diameter direction of the cutter head 3, after reaching the predetermined aperture size, then fasten each tool holder head 51 and the blade assembly 5 by each set screw 522 The knife seat driving block 52 is used to lock the blade assembly 5 on the knife disc 3, and the other end of the bayonet pin 92 is pulled out from the arc hole 21 on the aperture adjustment disc 2, and the disc reamer can be used.

The above-mentioned embodiments are only preferred embodiments of the present invention, and are not intended to limit the scope of the present invention; obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative work all belong to the protection scope of the present invention; Effect changes should be covered within the protection scope of the present invention.

Claims (10)

1. A disc reamer, including a main shaft connected to the output shaft of the motor; it is characterized in that: One end of the main shaft is connected with a circular aperture adjustment disc, the aperture adjustment disc is rotatably set in the cutter head provided at its front end, and the rear side of the cutter head is provided with a fitting groove for nesting and matching with the aperture adjustment disc; At least one pair of blade assemblies arranged symmetrically with respect to the center of the cutter head is provided on the radial direction of the front side of the cutter head, and the blade assembly includes a blade, a head of a knife seat and a driving block of a knife seat fixed on the head of the knife seat, The blade is fixed vertically on the head of the knife seat, and the two sides of the connection between the head of the knife seat and the drive block of the knife seat form an "I" groove, and the corresponding cutter head is provided with an inverted "T" groove in the radial direction, and the head of the knife seat The "I" slot at the connection with the drive block of the knife seat is set in the inverted "T" slot of the knife head and can slide radially; The inner side of the aperture adjustment disk is provided with an involute spiral groove arranged on the entire surface of the disk, and the bottom side of the corresponding knife seat driving block is provided with a plurality of tooth blocks that cooperate with the spiral groove; the rotation of the aperture adjustment disk drives all the symmetrically arranged knife seats The driving block and the tool seat head move toward or away from each other along the "T" groove of the cutter head, and adjust the size of the tool seat head arranged in pairs in the diameter direction of the cutter head and the pre-machined aperture of the upper blade. 2. The disk type hole reamer according to claim 1, characterized in that, the front of the cutter head is also provided with a scale line for determining the pre-machined hole diameter of the blade on the cutter head. 3. The disk type hole reamer according to claim 1, characterized in that, the driving block of the knife seat is in the shape of a "convex", and the head of the knife seat is provided with a groove that matches the protrusion of the driving block of the knife seat The protruding head of the knife seat driving block is inserted into the groove of the knife seat head and fixed by the set screw and the knife seat head sliding along the cutter head is locked and fixed on the cutter head. 4. The disc-type hole reamer according to claim 1, wherein a plurality of arc-shaped holes communicating with the inner spiral groove are provided on the outer side of the aperture adjustment disc. 5. The disk type hole reamer according to claim 1, characterized in that a dust cover is installed on the main shaft. 6. The disk type hole reamer according to claims 4 and 5, characterized in that, the rear side of the dust cover is also provided with a bayonet assembly for locking the aperture adjustment disk relative to the rotary motion of the cutterhead, and the bayonet The pin assembly includes the bayonet outer nut, the bayonet spring, the bayonet and the bayonet screw inside the bayonet. There is a bayonet hole for the bayonet on the dust cover. The rear outside of the bayonet hole of the cover is fixed on one end of the bayonet by the bayonet outer nut, and the other end of the bayonet is fitted with the arc-shaped hole on the aperture adjustment plate after the bayonet screw in the bayonet is installed. 7. The disk type reamer according to claim 1, wherein a center drill is installed at the center of the front surface of the cutterhead to facilitate the centering of the hole to be drilled. 8 . The disk type hole reamer according to claim 1 , wherein a main spring is installed on the rear side of the main shaft to facilitate the pretensioning of the blade on the cutter head to the workpiece to be processed. 9. The disk type hole reamer according to claim 1, characterized in that, the front and rear sides of the knife seat are respectively provided with blade fixing grooves, and the blade is fixed to the blade on the front side or the rear side of the knife seat by screws Fixed slot. 10. The disk type hole reamer according to claim 1, characterized in that, the cutter head is also provided with a cutter holder limit card to prevent the cutter holder head from sliding out of the "T" groove.

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