CN215238277U

CN215238277U - Reamer with replaceable blades

Info

Publication number: CN215238277U
Application number: CN202121604285.1U
Authority: CN
Inventors: 邢琪
Original assignee: Shanghai Jingchi Precision Tools Co ltd
Current assignee: Shanghai Jingchi Precision Tools Co ltd
Priority date: 2021-07-15
Filing date: 2021-07-15
Publication date: 2021-12-21
Anticipated expiration: 2031-07-15

Abstract

The utility model relates to a removable reamer of blade, it is including handle of a knife, sword neck and the tool bit that connects gradually, the tool bit is equipped with a plurality of installation faces along its circumference, still including dismantling the blade of connecting in the installation face, blade and installation face one-to-one setting, the shaping has the mounting bar on the blade, it has the mounting groove that is used for holding the mounting bar to open on the installation face, one side that the tool bit deviates from the sword neck is equipped with the clamp plate, the clamp plate supports tight mounting bar and tool bit, be connected with the retaining member that carries out locking to the clamp plate on the tool bit. This application has reduction in production cost, changes the effect to damaged blade.

Description

Reamer with replaceable blades

Technical Field

The application relates to the field of cutters, in particular to a reamer with replaceable blades.

Background

The reamer is a rotary cutter with one or more cutter teeth and used for cutting off a thin metal layer on the machined surface of a hole, and the reamer reams the drilled (or reamed) hole on a workpiece, mainly for improving the machining precision of the hole and reducing the roughness of the surface of the hole. The holes can be given a precise size and shape after being reamed.

At present, chinese patent with publication number CN211413900U discloses a reamer, including handle of a knife, sword neck and tool bit, sword neck one end and handle of a knife fixed connection, the other end and tool bit fixed connection, the tool bit is equipped with the installation face that a plurality of interval set up along its circumference, the reamer still includes a plurality of blades, every blade is installed in every installation face.

With respect to the related art in the above, the inventors consider that: because the blades are fixedly connected to the cutter head, when one blade is worn or broken in the using process, the whole reamer needs to be replaced, and the using cost is increased.

SUMMERY OF THE UTILITY MODEL

In order to reduce manufacturing cost, be convenient for change damaged blade, this application provides a removable reamer of blade.

The application provides a removable reamer of blade adopts following technical scheme:

the utility model provides a removable reamer of blade, is including handle of a knife, sword neck and the tool bit that connects gradually, the tool bit is equipped with a plurality of installation faces along its circumference, still includes the blade of dismantling to be connected in the installation face, blade and installation face one-to-one set up, the shaping has the mounting bar on the blade, it has the mounting groove that is used for holding the mounting bar to open on the installation face, one side that the tool bit deviates from the sword neck is equipped with the clamp plate, tight mounting bar and tool bit are supported to the clamp plate, be connected with the retaining member that locks to the clamp plate on the tool bit.

Through adopting above-mentioned technical scheme, operating personnel removes the locking to the clamp plate through the retaining member, takes off the clamp plate after that, then changes damaged blade, need not to change whole reamer, has reduced manufacturing cost.

Optionally, the locking piece is a locking bolt in threaded connection with the cutter head, and the locking bolt penetrates through the pressing plate and abuts against the pressing plate.

Through adopting above-mentioned technical scheme, screw up the fastening that locking bolt can realize the clamp plate, the simple operation.

Optionally, the pressing plate is fixedly connected with a connecting block, and the cutter head is provided with a connecting groove for accommodating the connecting block.

Through adopting above-mentioned technical scheme, the connecting block is spacing to placing of clamp plate, has improved the accuracy that the clamp plate was placed.

Optionally, the retaining member is the tapered end, it has the jack to open on the lateral wall of spread groove, the tapered end slides in the jack, be equipped with the elastic component in the jack, the elastic component extrudees between the hole bottom wall and the tapered end of jack, it has the locking groove that is used for holding the tapered end tip to open on the connecting block, fixedly connected with gangbar on the tapered end, it has the spout that supplies the gangbar to slide to open on the tool bit, spout and jack are linked together.

Through adopting above-mentioned technical scheme, operating personnel slides the gangbar towards the direction of elastic component, and in all getting into the jack up the tapered end, can take off the clamp plate and dismantle the blade, the blade is changed and is accomplished the back, supports the clamp plate tight tool bit, and at this moment, in the connecting seat inserts the spread groove, when jack and lock groove intercommunication, the tapered end got into the lock inslot, realized the locking to the clamp plate.

Optionally, a limiting groove is formed in the hole wall of the jack, a limiting block which slides in the limiting groove is fixedly connected to the lock head, and a stop block is fixedly connected to the notch of the limiting groove.

Through adopting above-mentioned technical scheme, the dog is spacing to the stopper to carry on spacingly to the tapered end, reduced because the elastic potential energy of elastic component is too big, thereby lead to the tapered end to deviate from the possibility in the jack.

Optionally, the tool neck includes fixed connection in the neck cover of handle of a knife, the neck body of fixed connection in the tool bit, the tip that the tool bit was kept away from to the neck body slides and inserts and establish in the neck cover, threaded connection has the tight bolt of support on the neck cover, it has the screw hole that supplies to the tight bolt male to open on the neck body, the screw hole is provided with a plurality ofly along the length direction of the neck body.

Through adopting above-mentioned technical scheme, unscrew and support the bolt, deviate from the neck internal until supporting the bolt, can slide the neck body, adjust the length of sword neck, at last, screw up and support the bolt, until supporting the bolt and get into the threaded hole, fix the length of sword neck, realized the regulation of sword neck length, enlarged application scope.

Optionally, the mounting groove is a T-shaped groove, and the mounting bar is a T-shaped bar.

Through adopting above-mentioned technical scheme, the setting in T type groove is spacing to the mounting bar, has reduced the possibility that the mounting bar deviates from in the mounting groove, has improved the stability that the reamer was processed man-hour.

Optionally, a plurality of straight surfaces are arranged on the peripheral wall of the knife handle.

By adopting the technical scheme, the straight surface is arranged, so that the knife handle is convenient to clamp.

In summary, the present application includes at least one of the following beneficial technical effects:

1. an operator releases the locking of the pressing plate through the locking piece, then takes down the pressing plate, and then replaces the damaged blade without replacing the whole reamer, so that the production cost is reduced;

2. the abutting bolt is unscrewed until the abutting bolt is separated from the neck body, the neck body can slide, the length of the cutter neck is adjusted, and finally, the abutting bolt is screwed until the abutting bolt enters the threaded hole, the length of the cutter neck is fixed, the adjustment of the length of the cutter neck is realized, and the application range is enlarged.

Drawings

Fig. 1 is a schematic view of the overall structure of embodiment 1 of the present application.

Fig. 2 is a sectional view of a connecting block embodying embodiment 1 of the present application.

Fig. 3 is a schematic view of the overall structure of embodiment 2 of the present application.

Fig. 4 is a sectional view of a lock cylinder embodying the embodiment 2 of the present application.

Fig. 5 is an enlarged schematic view at a in fig. 4.

Description of reference numerals:

1. a knife handle; 11. connecting grooves; 12. a straight surface; 2. a cutter neck; 21. a neck sleeve; 22. a neck body; 221. a threaded hole; 23. tightly abutting against the bolt; 3. a cutter head; 31. a mounting surface; 311. mounting grooves; 32. a chute; 4. a blade; 41. mounting a bar; 5. pressing a plate; 51. connecting blocks; 511. a locking groove; 52. a yielding groove; 6. locking the bolt; 7. a lock head; 71. a limiting block; 8. a jack; 81. an elastic member; 82. a limiting groove; 83. a stopper; 9. a linkage rod.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

The embodiment of the application discloses a reamer with replaceable blades.

Example 1

Referring to fig. 1 and 2, the reamer with replaceable blades comprises a handle 1 and a neck 2 which are connected in sequence, and a cutter head 3 is coaxially fixed on the end surface of the neck 2 far away from the handle 1. In this embodiment, the tool tip 3 is provided with five mounting surfaces 31, and the five mounting surfaces 31 are provided at equal intervals in the circumferential direction of the tool tip 3.

Referring to fig. 1 and 2, each mounting surface 31 is provided with a blade 4, a mounting bar 41 is integrally formed on the blade 4, and the length direction of the mounting bar 41 is the same as the length direction of the cutter head 3. Mounting surface 31 is provided with mounting groove 311 for accommodating mounting bar 41, and in order to improve the stability of mounting bar 41 in mounting groove 311, mounting groove 311 is provided with a T-shaped groove, and mounting bar 41 is provided with a T-shaped bar matched with the T-shaped groove.

Referring to fig. 1, a pressing plate 5 is arranged on one side of the cutter head 3 departing from the cutter neck 2, and a locking member is connected to the cutter head 3 and is a locking bolt 6. The locking bolt 6 penetrates through the pressure plate 5, and the center lines of the locking bolt 6, the pressure plate 5 and the cutter head 3 are collinear. The nut of the locking bolt 6 is tightly pressed on the pressure plate 5, and the bottom end of the locking bolt 6 is in threaded connection with the cutter head 3.

Referring to fig. 1 and 2, three connecting blocks 51 are formed on the side of the pressing plate 5 facing the cutter head 3, and the three connecting blocks 51 are arranged at equal intervals along the circumferential direction of the pressing plate 5. Open on the terminal surface of tool bit 3 and have the spread groove 11, connecting block 51 passes through spread groove 11 and tool bit 3 cooperation of pegging graft, and spread groove 11 and connecting block 51 one-to-one set up, and connecting block 51 provides the location for placing of clamp plate 5.

Referring to fig. 1, in order to meet the use requirements of different conditions, the length of the cutter neck 2 can be adjusted, and the application range is expanded. The tool neck 2 comprises a neck sleeve 21 and a neck body 22, and the neck sleeve 21 is fixedly connected to the end face, facing the tool bit 3, of the tool shank 1. The neck body 22 is fixedly connected with the end surface of the tool bit 3 facing the tool handle 1, and the center lines of the neck body 22, the tool bit 3 and the tool handle 1 are collinear.

Referring to fig. 1, the end of the neck 22 away from the cutting head 3 is slidably inserted into the neck sleeve 21, and a fastening bolt 23 is threadedly connected to the outer peripheral wall of the neck sleeve 21. The neck 22 is provided with a plurality of threaded holes 221, and the plurality of threaded holes 221 are provided along the longitudinal direction of the neck 22. The bottom end of the fastening bolt 23 is connected to the neck body 22 through the screw hole 221 in a threaded manner, and the fastening bolt 23 is fastened to the neck sleeve 21. In order to improve the stability of the neck body 22 during the processing, the neck body 22 is further limited, and the neck body 22 is a square rod.

Referring to fig. 1, in this embodiment, be provided with four straight faces 12 on the periphery wall of handle of a knife 1, four straight faces 12 set up along the circumference of handle of a knife 1, and the operating personnel clamping reamer of being convenient for has improved the stability in the reamer course of working.

The implementation principle of the embodiment 1 is as follows: when blade 4 damages, operating personnel unscrews locking bolt 6, then takes off clamp plate 5, along the direction that deviates from sword neck 2 blade 4 that slides, deviate from in mounting groove 311 until mounting bar 41, then, operating personnel takes out new blade 4 for mounting bar 41 inlays in mounting groove 311, along the direction that deviates from sword neck 2 blade 4 that slides, conflict the cell wall of mounting groove 311 until the terminal surface of mounting bar 41, and finally, mounting clamp plate 5 screws up locking bolt 6.

Example 2

Referring to fig. 3, the present embodiment is different from embodiment 1 in the difference of the locking member.

Referring to fig. 4 and 5, the locking member is a locking head 7, and a side wall of the connecting groove 11 is provided with a jack 8, and the axis of the jack 8 points to the central line of the cutter head 3 (refer to fig. 3). One end of the lock head 7 is inserted in the jack 8 in a sliding way. An elastic part 81 is arranged in the jack 8, the elastic part 81 is a spring, one end of the spring is abutted against the bottom wall of the jack 8, and the other end of the spring is abutted against the tapered end 7.

Referring to fig. 5, a locking groove 511 is formed on a side wall of the connecting block 51, and the locking groove 511 is inserted by an end of the locking head 7. The lock head 7 is fixedly connected with a linkage rod 9 which is vertically arranged, and the linkage rod 9 penetrates through the tool bit 3. The tool bit 3 is provided with a sliding groove 32 along the sliding direction of the lock head 7, the sliding groove 32 is communicated with the jack 8, and the linkage rod 9 slides in the sliding groove 32. The top end of the linkage rod 9 penetrates through the pressing plate 5, and the pressing plate 5 is provided with a yielding groove 52 for the linkage rod 9 to slide.

Referring to fig. 5, in order to limit the locking head 7, the possibility that the locking head 7 is disengaged from the insertion hole 8 due to the excessive elastic potential energy of the elastic member 81 is reduced. The hole wall of the jack 8 is provided with a limiting groove 82, the limiting groove 82 is arranged along the axial direction of the jack 8, and a stop dog 83 is fixedly connected with the notch of the limiting groove 82. The lock head 7 is fixedly connected with a limiting block 71 embedded in the limiting groove 82, and the limiting block 71 is matched with the limiting groove 82 in a sliding manner.

The implementation principle of the embodiment 2 is as follows: when the blade 4 is damaged, an operator slides the linkage rod 9 along the direction towards the bottom of the hole of the jack 8, and the linkage rod 9 drives the lock head 7 until the lock head 7 completely enters the jack 8. At this moment, the operator takes off the pressing plate 5, takes out new blade 4 for the mounting bar 41 is embedded in the mounting groove 311, and the blade 4 slides along the direction deviating from the knife neck 2 until the end surface of the mounting bar 41 collides with the groove wall of the mounting groove 311. Finally, the operator installs the pressing plate 5, so that the connecting block 51 is inserted into the connecting groove 11, and when the inserting hole 8 is communicated with the locking groove 511, the lock head 7 enters the locking groove 511, thereby realizing the locking of the pressing plate 5.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a removable reamer of blade, is including handle of a knife (1), sword neck (2) and tool bit (3) that connect gradually, tool bit (3) are equipped with a plurality of installation faces (31) along its circumference, its characterized in that: still including dismantling blade (4) of connecting in installation face (31), blade (4) and installation face (31) one-to-one set up, the shaping has mounting bar (41) on blade (4), it has mounting groove (311) that are used for holding mounting bar (41) to open on installation face (31), one side that tool bit (3) deviate from sword neck (2) is equipped with clamp plate (5), clamp plate (5) support tight mounting bar (41) and tool bit (3), be connected with the retaining member that locks clamp plate (5) on tool bit (3).

2. The replaceable blade reamer of claim 1 wherein: the locking piece is a locking bolt (6) which is in threaded connection with the tool bit (3), and the locking bolt (6) penetrates through the pressing plate (5) and abuts against the pressing plate (5).

3. The replaceable blade reamer of claim 1 wherein: fixedly connected with connecting block (51) on clamp plate (5), it has connecting groove (11) that are used for holding connecting block (51) to open on tool bit (3).

4. The replaceable blade reamer of claim 3 wherein: the retaining member is tapered end (7), it has jack (8) to open on the lateral wall of spread groove (11), tapered end (7) slide in jack (8), be equipped with elastic component (81) in jack (8), elastic component (81) are extruded between the diapire of jack (8) and tapered end (7), it has locking groove (511) that are used for holding tapered end (7) tip to open on connecting block (51), fixedly connected with gangbar (9) are gone up in tapered end (7), it has spout (32) that supply gangbar (9) to slide to open on tool bit (3), spout (32) and jack (8) are linked together.

5. The replaceable blade reamer of claim 4 wherein: the hole wall of the jack (8) is provided with a limiting groove (82), the lock head (7) is fixedly connected with a limiting block (71) which slides in the limiting groove (82), and a notch of the limiting groove (82) is fixedly connected with a stop block (83).

6. The replaceable blade reamer of claim 1 wherein: the utility model discloses a safe scalpel handle, including the neck body (22) of fixed connection in neck cover (21), fixed connection in tool bit (3) of handle of a knife (1), the neck body (2), the tip that tool bit (3) were kept away from in neck body (22) slides and inserts and establish in neck cover (21), threaded connection has on neck cover (21) to support tight bolt (23), it has to supply to support tight bolt (23) male screw hole (221) to open on the neck body (22), screw hole (221) are provided with a plurality ofly along the length direction of neck body (22).

7. The replaceable blade reamer of claim 1 wherein: the mounting groove (311) is a T-shaped groove, and the mounting bar (41) is a T-shaped bar.

8. The replaceable blade reamer of claim 1 wherein: the outer peripheral wall of the knife handle (1) is provided with a plurality of straight surfaces (12).