Composite reamer

Abstract

The utility model discloses a composite reamer which comprises a reamer handle, a connecting part is arranged at the top end of the reamer handle, a square hole is formed in the bottom end of the reamer handle, a connecting rod is connected to the inner wall of the square hole in a sliding mode, a reamer head is fixedly connected to the bottom end of the connecting rod, and a locking rod distributed in an annular mode is inserted into the inner wall of the square hole in a penetrating mode. One end of the lock rod penetrates through and extends to the outer side of the knife handle, one end of the lock rod is semispherical, the top of the lock rod is fixedly connected with a first spring, and one end of the first spring is fixedly connected with the knife handle. According to the tool bit, the tool bit can be disassembled by pulling the sliding sleeve upwards, the difficulty of replacing the tool bit is effectively reduced, the tool bit can be installed and fixed only by releasing the sliding sleeve when the tool bit is installed, the process is very convenient and rapid, the tool bit replacing speed is effectively increased, and the tool bit is not prone to being damaged in the workpiece machining process of the tool bit. The situation that the tool bit is loosened can be effectively avoided, and the safety of the device is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to composite reamer technical field more specifically, relate to a composite reamer. BACKGROUND

[0002] Reamer is commonly used reaming or hole tool, uses more in the finishing of hole, mainly is to improve the machining accuracy, and reduces the surface roughness. The traditional reamer is generally composed of cutter body and cutting part, and most of the external cooling type machining methods adopt external cooling type machining, and the cutter body surface is composed of smooth cylinder, which leads to large cutter body stiffness.

[0003] The composite reamer needs to use multiple types of composite reamers when machining different workpieces, at which time the composite reamer is disassembled and replaced very frequently, in order to improve the replacement speed of the composite reamer, so a composite reamer is needed. UTILITY MODEL CONTENT

[0004] In view of the problems in the prior art, the utility model aims at providing a composite reamer convenient to assemble and disassemble, reducing the difficulty of replacing the tool bit, and only releasing the sliding sleeve when installing the tool bit, so that the installation and fixation of the tool bit are completed, and the safety during machining is improved.

[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme.

[0006] A composite reamer, comprising a handle, a connecting part is arranged at the top end of the handle, a square hole is arranged at the bottom end of the handle, a connecting rod is slidably connected to the inner wall of the square hole, a tool bit is fixedly connected to the bottom end of the connecting rod, lock rods are arranged in the square hole in a ring shape, one end of the lock rod penetrates and extends to the outside of the handle, one end of the lock rod is arranged in a hemispherical shape, a spring one is fixedly connected to the top of the lock rod, one end of the spring one is fixedly connected to the handle, a sliding sleeve is sleeved on the handle and slidably connected to the handle, the inner side of the sliding sleeve is in contact with the lock rod, a guide groove is arranged at the bottom of the sliding sleeve, the guide groove is in a trumpet shape, two sliding blocks are fixedly connected to the inner side of the sliding sleeve, two vertical grooves are arranged on the handle and slidably connected to the sliding blocks, a spring two is fixedly connected between the inner wall of the two vertical grooves and the two sliding blocks, and a lock hole is arranged on the connecting rod and matched with the lock rod.

[0007] Further description of the above technical scheme:

[0008] The outer side of the sliding sleeve is sleeved with anti-skid rings arranged at equal distances, and the inner side of the anti-skid ring is fixedly connected with the sliding sleeve.

[0009] Further description of the above technical scheme:

[0010] The top of the tool shank is provided with a liquid inlet pipe fixedly connected therewith, a through hole is formed in the connecting rod and in sliding connection with the liquid inlet pipe, a cavity is formed in the tool head, a circular hole is formed in the top of the cavity and in communication with the through hole, and a plurality of liquid outlet holes are formed in the inner wall of the cavity in a ring shape.

[0011] As a further description of the above technical solution:

[0012] Two water tanks are formed in the tool shank, a conduit is in communication between the inner wall of each water tank and the liquid inlet pipe, a piston plate is in sliding connection with the inner wall of each water tank, a spring and a baffle are fixedly connected to the opposite side of each piston plate, and the opposite side of each baffle extends through the tool shank and to the outside of the tool shank.

[0013] As a further description of the above technical solution:

[0014] A sealing ring is embedded in the inner wall of the through hole and in contact with the liquid inlet pipe.

[0015] As a further description of the above technical solution:

[0016] A plurality of limiting holes are formed in the top of the tool head in a ring shape, and a plurality of limiting rods are fixedly connected to the bottom of the tool shank in a ring shape.

[0017] Compared with the prior art, the present application has the following advantages:

[0018] The tool head can be disassembled by pulling up the sliding sleeve, thereby effectively reducing the difficulty of replacing the tool head. When the tool head is installed, the sliding sleeve is only released, and the installation and fixation of the tool head can be completed. The process is very convenient and fast, effectively improves the replacement speed of the tool head, and effectively avoids the loosening of the tool head during the machining of the workpiece, thereby improving the safety of the device. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is a structural schematic view of the present application;

[0020] Figure 2 is a perspective view of the present application;

[0021] Figure 3 is a sectional view of the present application;

[0022] Figure 4 is a sectional view of the present application; Figure 3 is an enlarged view of part A of the present application;

[0023] Figure 5 is a side view of the present application.

[0024] Explanation of reference numerals in the drawings:

[0025] 1, handle; 2, connecting part; 3, square hole; 4, connecting rod; 5, tool bit; 6, lock rod; 7, spring I; 8, sliding sleeve; 9, guide groove; 10, sliding block; 11, vertical slot; 12, spring II; 13, lock hole; 14, anti-skid ring; 15, liquid inlet pipe; 16, through hole; 17, cavity; 18, liquid outlet hole; 19, water tank; 20, catheter; 21, piston plate; 22, spring III; 23, baffle; 24, sealing ring; 25, limiting hole; 26, limiting rod. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model.

[0027] Please refer to Figures 1-5 The utility model discloses a composite reamer, including handle 1, the top of handle 1 is equipped with connecting part 2, the bottom of handle 1 is equipped with square hole 3, the inner wall of square hole 3 is slidably connected with connecting rod 4, the bottom of connecting rod 4 is fixedly connected with tool bit 5, the inner wall of square hole 3 is inserted with annular distribution's lock rod 6, and one end of lock rod 6 extends to the outside of handle 1, and one end of lock rod 6 is hemispherical, the top of lock rod 6 is fixedly connected with spring I 7, one end of spring I 7 is fixedly connected with handle 1, handle 1 is equipped with the sliding connection of sliding sleeve 8, the inner side of sliding sleeve 8 is in contact with lock rod 6, the bottom of sliding sleeve 8 is equipped with guide groove 9, and the shape of guide groove 9 is horn-shaped, the inner side of sliding sleeve 8 is fixedly connected with two sliding blocks 10, handle 1 is equipped with two vertical slots 11 of sliding block 10 sliding connection, and the inner wall between two vertical slots 11 and two sliding blocks 10 is fixedly connected with spring II 12, and connecting rod 4 is equipped with the lock hole 13 of being adapted with lock rod 6.

[0028] The utility model discloses a connecting rod 4 is inserted to the square hole 3 after the connecting rod 4 of the tool bit 5 on the tool bit 5 is replaced, and the user releases the slide sleeve 8, the spring no. 2 12's elasticity can release slide sleeve 8 and go down, and slide sleeve 8 goes down and will drive the guide slot 9 and lock rod 6 contact, along with the slide sleeve 8's drop, the guide slot 9 will extrude lock rod 6, the spring no. 7's elasticity is less than the spring no. 2 12's elasticity, and lock rod 6 will be driven by the guide slot 9, until lock rod 6 slides into the inside of slide sleeve 8, lock rod 6 will be inserted into the lock hole 13 at this time, and the fixed mounting of tool bit 5 is realized, and the replacement of tool bit 5 is completed.

[0029] Please refer to Figures 1-5 Among them: the outside of slide sleeve 8 is sleeved with the anti -skid ring 14 of equal distance arrangement, and the inside of anti -skid ring 14 is fixedly connected with slide sleeve 8.

[0030] The utility model discloses a anti -skid ring 14's setting can increase friction, and the user is convenient for pulling slide sleeve 8, and the practicality of device is improved further.

[0031] Please refer to Figures 3-5 Among them: the top of tool handle 1 is inserted with the liquid inlet pipe 15 of fixed connection, and the through -hole 16 of sliding connection is seted up on connecting rod 4 with liquid inlet pipe 15, and the cavity 17 is seted up on tool bit 5, and the circular hole of communication is seted up on the top of cavity 17 with through -hole 16, and the outlet hole 18 of annular distribution is seted up on the inner wall of cavity 17.

[0032] The utility model discloses a in the workpiece processing, the user will cooling liquid input to liquid inlet pipe 15, and cooling liquid will flow into cavity 17 from through -hole 16 and circular hole, and cooling liquid can realize the effect of cooling tool bit 5, and cooling liquid will be sprayed from outlet hole 18, and the lubrication of processing position is carried out.

[0033] Please refer to Figure 5 Among them: two water grooves 19 are seted up on tool handle 1, and the inner wall between two water grooves 19 and liquid inlet pipe 15 is communicated with the pipe 20, and the inner wall of two water grooves 19 is slidably connected with the piston plate 21, and the opposite side of two piston plates 21 is fixedly connected with spring no. 3 22 and baffle 23, and the opposite side of two baffle 23 is penetrated and extends to the outside of tool handle 1.

[0034] In the utility model, the cooling liquid has certain pressure in the conveying process, the cooling liquid will enter into the water tank 19 through the pipe 20, the cooling liquid has certain pressure, the cooling liquid will push the piston plate 21 to move, the piston plate 21 will drive the baffle 23 to move, the baffle 23 will then slide out of the shank 1, the baffle 23 will move to the sliding sleeve 8, and further realize the effect of limiting the sliding sleeve 8, effectively avoid the sliding sleeve 8 to move up, the lock rod 6 is separated from the lock hole 13, the head 5 appears the condition of loosening, and further improve the safety of the device.

[0035] Please refer to Figure 4 With 5 Among them: the inner wall of the through hole 16 is embedded with a sealing ring 24, and the inner side of the sealing ring 24 is in contact with the liquid inlet pipe 15.

[0036] In the utility model, the sealing ring 24 can improve the sealing effect between the liquid inlet pipe 15 and the through hole 16, and improve the practicability of the device.

[0037] Please refer to Figure 4 With 5 Among them: the top of the head 5 is provided with a limit hole 25 distributed in a ring, and the bottom of the shank 1 is fixedly connected with a limit rod 26 distributed in a ring.

[0038] In the utility model, the cooperation of the limit hole 25 and the limit rod 26 can limit the head 5, and further improve the stability of the head 5.

[0039] The above is only the preferred specific embodiment of the utility model; but the protection scope of the utility model is not limited to this. Any skilled person in the art can replace or change according to the technical scheme and the improvement concept of the utility model within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model.

Claims

1. A compound reamer comprising a shank (1), characterized in that: The top end of the tool holder (1) is provided with a connecting part (2), the bottom end of the tool holder (1) is provided with a square hole (3), the inner wall of the square hole (3) is slidably connected with a connecting rod (4), the bottom end of the connecting rod (4) is fixedly connected with a tool bit (5), the inner wall of the square hole (3) is inserted with annularly distributed lock rods (6), one end of the lock rod (6) penetrates and extends to the outside of the tool holder (1), one end of the lock rod (6) is provided in a hemispherical shape, the top of the lock rod (6) is fixedly connected with a spring (7), one end of the spring (7) is fixedly connected with the tool holder (1), the tool holder (1) is sleeved with a sliding sleeve (8) which is slidably connected with the tool holder (1), the inner side of the sliding sleeve (8) is in contact with the lock rod (6), the bottom of the sliding sleeve (8) is provided with a guide groove (9), the guide groove (9) is in a trumpet shape, the inner side of the sliding sleeve (8) is fixedly connected with two sliding blocks (10), the tool holder (1) is provided with two vertical grooves (11) which are slidably connected with the sliding blocks (10), the inner walls of the two vertical grooves (11) and the two sliding blocks (10) are fixedly connected with springs (12), the connecting rod (4) is provided with a lock hole (13) which is matched with the lock rod (6).

2. A compound reamer according to claim 1, wherein: The outer side of the sliding sleeve (8) is sleeved with anti-skid rings (14) which are arranged at equal distances, the inner side of the anti-skid ring (14) is fixedly connected with the sliding sleeve (8).

3. A compound reamer according to claim 1, wherein: The top of the tool holder (1) is inserted with a liquid inlet pipe (15) which is fixedly connected with the tool holder (1), the connecting rod (4) is provided with a through hole (16) which is slidably connected with the liquid inlet pipe (15), the tool bit (5) is provided with a cavity (17), the top of the cavity (17) is provided with a circular hole which is in communication with the through hole (16), the inner wall of the cavity (17) is provided with annularly distributed liquid outlet holes (18).

4. A compound reamer according to claim 3, wherein: The tool holder (1) is provided with two water troughs (19), the inner walls of the two water troughs (19) and the liquid inlet pipe (15) are communicated with conduits (20), the inner walls of the two water troughs (19) are slidably connected with piston plates (21), the opposite sides of the two piston plates (21) are fixedly connected with springs (22) and baffles (23), the opposite sides of the two baffles (23) penetrate and extend to the outside of the tool holder (1).

5. A compound reamer according to claim 3, wherein: The inner wall of the through hole (16) is embedded with a sealing ring (24), the inner side of the sealing ring (24) is in contact with the liquid inlet pipe (15).

6. A compound reamer according to claim 1, wherein: The top of the tool bit (5) is provided with annularly distributed limiting holes (25), the bottom of the tool holder (1) is fixedly connected with annularly distributed limiting rods (26).

Images