Replaceable drill bit type expanding drill

Abstract

The reamer comprises a working table, a supporting base, a working body, a motor, a supporting plate and a drill bit, by arranging an assembling body, when drill bits with different hole diameters need to be installed at the bottom of a first rotating wheel, an electric push rod is started, a push plate generates thrust on a connecting rod, a square block is pushed by the connecting rod to move vertically and downwards, and the drill bits with the different hole diameters are installed on the working table. The position of one side end of the swing plate is changed, the swing plate is hinged to the side end of the arc block, therefore, the swing plate is subjected to fixed-point swing folding, the connecting block is subjected to clamping overturning in the middle, the swing plate is assisted to be subjected to swing folding change, and therefore the clamping buckle block is clamped into the top assembling opening of the drill bit to form an installation buckle position. Therefore, drill bits with different hole diameters are assembled below the first rotating wheel for drilling operation, and the drill bits of the device can be replaced.

Description

Technical Field

[0001] The utility model relates to the technical field of hole reaming drills, in particular to a hole reaming drill with a replaceable drill bit. Background Art

[0002] The processing method of enlarging the hole diameter of a workpiece using an expanding tool (such as an expanding drill) is called expanding. Expanding is a further processing performed on the basis of a hole that has been drilled, cast or forged on the workpiece using an expanding drill to expand the hole diameter and improve the processing accuracy of the hole. It is generally used for semi-finishing or final processing of holes.

[0003] With the existing reamer, usually one reamer device can only be equipped with holes that match the specifications. When it is necessary to use the same reamer to expand different holes with different diameters and widths, it cannot be done. Instead, different reamer needs to be replaced to continue the reaming operation, which limits the reaming of the hole and requires personnel to carry different reamer devices, which increases the trouble. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In order to solve the above technical problems, the utility model provides a hole reaming drill with a replaceable drill bit.

[0006] (II) Technical solution

[0007] Based on this, the utility model provides the following technical solutions: a drill with replaceable drill bit reaming drill, comprising a working table, a support seat, a working body, a motor, a support plate and a drill bit, the bottom of the support seat being embedded and connected to the upper end surface of the working table, the lower end surface of the working body being fixedly connected to the support seat, the motor and the working body being placed adjacent to each other and movably matched, the motor being installed at a position above one side end of the support plate, the drill bit passing through one side end of the support plate, and the upper end of the drill bit being movably installed with the working body; the working body comprising a first rotating wheel, a second rotating wheel, a bearing seat, a bearing, a transmission belt, a turntable and a support column, the first rotating wheel and the second rotating wheel being connected and movably matched through a bearing, the transmission belt being wound around the turntable, the transmission belt being respectively transmission-matched with the first rotating wheel and the second rotating wheel, the lower end of the bearing seat being connected and rotatably matched with the top of the bearing by passing through one side end of the support column, and the bearing seat being located at an upper end position on one side of the support column.

[0008] Preferably, the second rotating wheel comprises a mounting groove, an assembly, a wheel block and a contact block, the mounting groove is embedded and connected to the bottom of the wheel block, the assembly passes through the middle of the wheel block and the contact block and moves therein, and the contact block and the wheel block are an integrated structure.

[0009] Preferably, the assembly includes an embedded frame plate, an electric push rod, a push plate, a connecting rod, an embedded block, an arc block, an abutting plate and a mounting structure, the electric push rod is installed at the inner top end of the embedded frame plate, the electric push rod is fixedly connected and movably matched with the top end of the connecting rod through the push plate, the connecting rod passes through the bottom of the embedded frame plate, the connecting rod passes into the interior of the embedded block and moves inside it, the embedded block is located below the embedded frame plate, the arc block and the embedded block are an integrated structure and the arc block is located at the lower end of the embedded block, the abutting plate is embedded and connected to the outer end of the arc block, the mounting structure is movably matched below the connecting rod, and the upper ends of both sides of the mounting structure are hinged to the arc block and movably matched.

[0010] Preferably, the mounting structure includes a block, a hinge shaft, a swing plate, a snap block, a connecting block and a groove cavity, the hinge shaft is connected through a position above the end of the swing plate, the end of the swing plate is embedded in the block, the end of the swing plate is connected to the connecting block and movably cooperates with it, the snap block is fixedly connected to the front end of the swing plate, the connecting block is movably engaged with the inside of the block, and the groove cavity is an integrated structure with the block and is located inside it.

[0011] Preferably, the bottom end of the second rotating wheel is movably mounted on the upper end of the drill bit, the transmission belt is connected to the output end of the motor and the transmission is coordinated, and the lower end of the support column is welded and connected to the upper side of the support plate.

[0012] Preferably, the middle part of the wheel block is embedded in the lower end of the bearing, the assembly is movably installed with the upper end of the drill bit, the outer periphery of the contact block is matched with the transmission belt transmission, and the installation groove provides a range of embedding and positioning when the upper end of the drill bit is installed, so that the assembly can assemble drill bits of different specifications.

[0013] Preferably, the embedded frame plate is embedded in the inner side of the bottom of the bearing, the embedded block is located inside the wheel block and the contact block, the abutment plate is embedded in the mounting groove, and the mounting structure can be changed to facilitate snap-on assembly with the top of the drill bit.

[0014] Preferably, the upper end of the block is fixedly connected to the bottom end of the connecting rod, the hinge shaft is hinged to the arc block, and the swing plate moves below the arc block through the hinge shaft. The swing plate, the connecting block and the snap block cooperate as a group, and two groups are provided, which are symmetrically arranged on the left and right. The connecting block can undergo large changes and cooperate with the folding of the swing plate to facilitate the snap-on installation of the snap block and the drill bit.

[0015] (III) Beneficial effects

[0016] Compared with the prior art, the utility model provides a drill with replaceable drill bit, which has the following beneficial effects:

[0017] 1. A drill with replaceable drill bit, wherein the top of the drill bit is assembled with the bottom of the second rotating wheel, the drill bit is installed below the second rotating wheel, and the bearing seat is installed above the first rotating wheel. The bearing passes through the first rotating wheel and the second rotating wheel respectively and is connected to the bearing seat, so that the bearing assists the first rotating wheel and the second rotating wheel to rotate under the transmission of the transmission belt. Therefore, the second rotating wheel can drive the drill bit to rotate, so that the lower end of the drill bit can perform drilling operations on objects.

[0018] 2. This drill bit replaceable hole reaming drill has an assembly body. When drill bits with different apertures need to be installed at the bottom of the first rotary wheel, the electric push rod is started to cause the push plate to generate thrust on the connecting rod. The block is pushed vertically downward by the connecting rod, causing one side end of the swing plate to change position. The swing plate is hinged to the side end of the arc block, so the swing plate swings and folds at a fixed point, and the connecting block flips in the middle, assisting the swing plate to swing and fold, thereby snapping the snap block into the top assembly port of the drill bit to form an installation snap position, so that drill bits with different apertures can be assembled under the first rotary wheel for drilling operations, making the drill bit of the device replaceable. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 It is a three-dimensional structural schematic diagram of the working body of the utility model;

[0021] Figure 3 It is a schematic cross-sectional structural diagram of the second rotating wheel of the utility model;

[0022] Figure 4 It is a cross-sectional structural schematic diagram of the assembly of the utility model;

[0023] Figure 5 It is a cross-sectional structural schematic diagram of the installation structure of the utility model.

[0024] In the figure: workbench-1, support seat-2, work body-3, motor-4, support plate-5, drill bit-6, first rotating wheel-31, second rotating wheel-32, bearing seat-33, bearing-34, transmission belt-35, turntable-36, support column-37, installation groove-q1, assembly body-q2, wheel block-q3, contact block-q4, embedded frame plate-q21, electric push rod-q22, push plate-q23, connecting rod-q24, embedded block-q25, arc block-q26, abutting plate-q27, installation structure-q28, block-a1, hinge shaft-a2, swing plate-a3, buckle block-a4, connecting block-a5, groove cavity-a6. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figure 1-2 A drill bit replaceable reamer comprises a workbench 1, a support seat 2, a work body 3, a motor 4, a support plate 5 and a drill bit 6. The bottom of the support seat 2 is embedded and connected to the upper end surface of the workbench 1, the lower end surface of the work body 3 is fixedly connected to the support seat 2, the motor 4 is placed adjacent to the work body 3 and movably cooperates with the motor 4, the motor 4 is installed at a position above one side end of the support plate 5, the drill bit 6 passes through one side end of the support plate 5, and the upper end of the drill bit 6 is movably installed with the work body 3; the work body 3 comprises a first rotating wheel 31, a second rotating wheel 32, a bearing seat 33, a bearing 34, a transmission belt 35, a turntable 36 and a support column 3 7. The first rotating wheel 31 and the second rotating wheel 32 are connected and movably matched through the bearing 34. The transmission belt 35 is wound and connected with the turntable 36. The transmission belt 35 is respectively matched with the first rotating wheel 31 and the second rotating wheel 32 in transmission. The lower end of the bearing seat 33 is connected and rotatably matched with the top of the bearing 34 through a side end passing through the support column 37. The bearing seat 33 is located at the upper end of one side of the support column 37. The bottom end of the second rotating wheel 32 is movably installed with the upper end of the drill bit 6. The transmission belt 35 is connected and matched with the output end of the motor 4 in transmission. The lower end of the support column 37 is welded and connected to the upper side of the support plate 5.

[0027] See also Figure 3-4, a drill head replaceable reamer, the second rotating wheel 32 includes a mounting groove q1, an assembly q2, a wheel segment q3 and a contact block q4, the mounting groove q1 is embedded and connected to the bottom of the wheel segment q3, the assembly q2 passes through the middle of the wheel segment q3 and the contact block q4 and moves inside them, the contact block q4 and the wheel segment q3 are an integrated structure, the assembly q2 includes an embedded frame plate q21, an electric push rod q22, a push plate q23, a connecting rod q24, an embedded block q25, an arc block q26, an abutting plate q27 and a mounting structure q28, the electric push rod q22 is installed on the inner top of the embedded frame plate q21, the electric push rod q22 is fixedly connected and movably matched with the top of the connecting rod q24 through the push plate q23, the connecting rod q24 passes through the bottom of the embedded frame plate q21, the connecting rod q24 passes through the interior of the embedded block q25 and moves inside it, the embedded block q25 is located below the embedded frame plate q21, the arc block q26 and the embedded block q25 are an integrated structure and the arc block q26 is located at the lower end of the embedded block q25, the abutment plate q27 is embedded and connected to the outer end of the arc block q26, the mounting structure q28 is movably fitted under the connecting rod q24, the upper ends of both sides of the mounting structure q28 are hinged and movably fitted with the arc block q26, the middle part of the wheel block q3 is embedded with the lower end of the bearing 34, the assembly body q2 is movably installed with the upper end of the drill bit 6, the outer periphery of the contact block q4 is transmission-matched with the transmission belt 35, the mounting groove q1 provides a range of embedding and positioning when the upper end of the drill bit 6 is installed, so that the assembly body q2 can assemble drill bits of different specifications, the embedding frame plate q21 is embedded in the bottom inner side of the bearing 34, the embedded block q25 is located inside the wheel block q3 and the contact block q4, the abutment plate q27 is embedded in the inside of the mounting groove q1, and the mounting structure q28 can be changed for easy buckling assembly with the top of the drill bit 6.

[0028] See also Figure 5 A drill with replaceable drill head, the mounting structure q28 includes a block a1, a hinge shaft a2, a swing plate a3, a buckle block a4, a connecting block a5 and a groove cavity a6, the hinge shaft a2 is connected to the upper position of the end of the swing plate a3, the end of the swing plate a3 is embedded in the block a1, the end of the swing plate a3 is connected to the connecting block a5 and movably cooperates, the buckle block a4 is fixedly connected to the front end of the swing plate a3, the connecting block a5 is movably engaged with the inside of the block a1, the groove cavity a6 is connected to the square Block a1 is an integrated structure and is located inside it. The upper end of block a1 is fixedly connected to the bottom end of connecting rod q24. The hinge shaft a2 is hinged to arc block q26. The swing plate a3 moves below the arc block q26 through the hinge shaft a2. The swing plate a3, connecting block a5 and snap block a4 are a group for coordinated movement. There are two groups, which are symmetrically arranged on the left and right. The connecting block a5 can be greatly changed at a6, and cooperate with the swing plate a3 to fold, so as to facilitate the snap-on installation of the snap block a4 and the drill bit 6.

[0029] In summary, the top of the drill bit 6 is assembled with the bottom of the second rotating wheel 32, so that the drill bit 6 is installed below the second rotating wheel 32, and the bearing seat 33 is installed above the first rotating wheel 31, and the bearing 34 passes through the first rotating wheel 31 and the second rotating wheel 32 respectively, and is connected to the bearing seat 33, so that it can assist the first rotating wheel 31 and the second rotating wheel 32 to rotate under the transmission of the transmission belt 35, and start the motor 4, whose output end provides driving force for the transmission of the transmission belt 35. The transmission belt 35 is transmission-connected with the first rotating wheel 31 and the second rotating wheel 32 through the turntable 36. Therefore, the second rotating wheel 32 can drive the drill bit 6 to rotate, so that the lower end of the drill bit 6 can drill holes on objects. By setting an assembly body q2, the upper end of the embedded frame plate q21 is embedded in the interior of the bearing 34, and the embedded block q25 is located in the interior of the wheel block q3, so that the assembly body The q2 as a whole can rotate with the turning of the first rotating wheel 31. When it is necessary to install drill bits 6 of different apertures at the bottom of the first rotating wheel 31, the top of the drill bit 6 to be assembled is pressed into the mounting groove q1, and the electric push rod q22 is started to make it extend and retract, thereby driving the push plate q23 to generate a thrust on the connecting rod q24. The block a1 is pushed vertically downward by the connecting rod q24, causing the position of one side end of the swing plate a3 to change. The swing plate a3 is hinged to the side end of the arc block q26, so that the swing plate a3 produces a fixed-point swing fold, and the connecting block a5 connected to one side end of the swing plate a3 produces a card position flip in a6, which assists the swing plate a3 to swing and change, thereby locking the buckle block a4 into the top assembly port of the drill bit 6 to form an installation buckle position, so that the drill bits 6 of different apertures can be assembled under the first rotating wheel 31 for drilling operations, making the drill bit of the device replaceable.

[0030] The control method of the present invention is to control by manually starting and closing the switch. The wiring diagram of the power element and the provision of power supply are common knowledge in the field, and the present invention is mainly used to protect mechanical devices, so the present invention will not explain the control method and wiring arrangement in detail.

[0031] The control method of the present invention is automatic control through a controller. The control circuit of the controller can be realized by simple programming by technicians in this field. The provision of power is also common knowledge in this field. The present invention is mainly used to protect mechanical devices, so the present invention will no longer explain the control method and circuit connection in detail.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A drill with replaceable drill bit, characterized in that: The machine comprises a workbench (1), a support seat (2), a work body (3), a motor (4), a support plate (5) and a drill bit (6), wherein the bottom of the support seat (2) is embedded and connected to the upper end surface of the workbench (1), the lower end surface of the work body (3) is fixedly connected to the support seat (2), the motor (4) and the work body (3) are placed adjacent to each other and movably matched, the motor (4) is installed at a position above one side end of the support plate (5), the drill bit (6) passes through one side end of the support plate (5), and the upper end of the drill bit (6) is movably installed with the work body (3); The working body (3) comprises a first rotating wheel (31), a second rotating wheel (32), a bearing seat (33), a bearing (34), a transmission belt (35), a turntable (36) and a support column (37); the first rotating wheel (31) and the second rotating wheel (32) are connected and movably matched via the bearing (34); the transmission belt (35) and the turntable (36) are wound and connected; the transmission belt (35) and the first rotating wheel (31) and the second rotating wheel (32) are respectively transmission matched; the lower end of the bearing seat (33) is connected and rotatably matched with the top of the bearing (34) via a side end passing through the support column (37); the bearing seat (33) is located at the upper end of one side of the support column (37).

2. The drill with replaceable drill bit according to claim 1, characterized in that: The second rotating wheel (32) comprises a mounting groove (q1), an assembly (q2), a wheel block (q3) and a contact block (q4); the mounting groove (q1) is embedded and connected to the bottom of the wheel block (q3); the assembly (q2) passes through the middle of the wheel block (q3) and the contact block (q4) and moves inside them; the contact block (q4) and the wheel block (q3) are an integrated structure.

3. The drill with replaceable drill bit according to claim 2, characterized in that: The assembly (q2) comprises an embedded frame plate (q21), an electric push rod (q22), a push plate (q23), a connecting rod (q24), an embedded block (q25), an arc block (q26), an abutting plate (q27) and a mounting structure (q28); the electric push rod (q22) is mounted on the inner top of the embedded frame plate (q21); the electric push rod (q22) is fixedly connected and movably matched with the top of the connecting rod (q24) through the push plate (q23); the connecting rod (q24) passes through the bottom of the embedded frame plate (q21); the connecting rod (q24) penetrates into the interior of the embedded block (q25) and moves inside it, the embedded block (q25) is located below the embedded frame plate (q21), the arc block (q26) and the embedded block (q25) are an integrated structure and the arc block (q26) is located at the lower end of the embedded block (q25), the abutting plate (q27) is embedded and connected to the outer end of the arc block (q26), the mounting structure (q28) is movably engaged below the connecting rod (q24), and the upper ends of both sides of the mounting structure (q28) are hinged and movably engaged with the arc block (q26).

4. The drill with replaceable drill bit according to claim 3, characterized in that: The mounting structure (q28) includes a block (a1), a hinge shaft (a2), a swing plate (a3), a snap block (a4), a connecting block (a5) and a groove cavity (a6); the hinge shaft (a2) is connected through a position above the end of the swing plate (a3); the end of the swing plate (a3) ​​is embedded in the block (a1); the end of the swing plate (a3) ​​is connected to the connecting block (a5) and can be movably matched; the snap block (a4) is fixedly connected to the front end of the swing plate (a3); the connecting block (a5) is movably engaged with the inside of the block (a1); and the groove cavity (a6) is an integrated structure with the block (a1) and is located inside it.

5. The drill with replaceable drill bit according to claim 1, characterized in that: The bottom end of the second rotating wheel (32) is movably mounted on the top end of the drill bit (6), the transmission belt (35) is connected to the output end of the motor (4) and is in transmission coordination, and the lower end of the support column (37) is welded to the top of one side of the support plate (5).

6. The drill with replaceable drill bit according to claim 2, characterized in that: The middle part of the wheel block (q3) is embedded in the lower end of the bearing (34), the assembly (q2) is movably mounted on the upper end of the drill bit (6), and the outer periphery of the contact block (q4) is transmission-matched with the transmission belt (35).

7. The drill with replaceable drill bit according to claim 3, characterized in that: The embedded frame plate (q21) is embedded in the inner side of the bottom of the bearing (34), the embedded block (q25) is located inside the wheel block (q3) and the contact block (q4), and the abutting plate (q27) is embedded in the installation groove (q1).

8. The drill with replaceable drill bit according to claim 4, characterized in that: The upper end of the block (a1) is fixedly connected to the bottom end of the connecting rod (q24), the hinge shaft (a2) is hinged to the arc block (q26), and the swing plate (a3) ​​moves below the arc block (q26) through the hinge shaft (a2).

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