Quick clamping tool for inserted hob drill bit

Abstract

The utility model relates to the technical field of inserted hob drill bit clamping tools, in particular to a rapid inserted hob drill bit clamping tool which comprises a tool apron, two supporting plates and two positioning pins, positioning rings A are arranged on the left side and the right side of the tool apron respectively and installed on the outer sides of the positioning pins, the rapid inserted hob drill bit clamping tool further comprises two moving plates, a rotating hole is formed in one side of each moving plate, and the rotating holes are formed in the other side of each moving plate. The positioning pin can rotate on the inner side of the rotating hole; guide plates are connected to the left side and the right side of the lifting plate, guide grooves are formed in the sides, facing the lifting plate, of the supporting plates, and the guide plates can slide on the inner sides of the guide grooves; two positioning strips are arranged on the outer sides of the connecting rods in a sliding manner; a clamping rotation unit; and an adjustable support unit. And by arranging the connecting rods, the positioning strips and the adjustable supporting units, tool aprons of different sizes can be pre-supported, follow-up clamping is facilitated, and the clamping efficiency and the applicability of the device are improved.

Description

Technical Field

[0001] This utility model relates to the field of clamping fixtures for toothed hobbing drill bits, and in particular to a quick clamping fixture for toothed hobbing drill bits. Background Technology

[0002] A toothed hob consists of a cutter body and inlaid carbide teeth. The cutter body is usually made of high-quality alloy steel to ensure overall strength and impact resistance; the carbide teeth are mainly made of tungsten-cobalt alloys, which have both high hardness and toughness, and the tooth shapes include spherical, wedge-shaped, and pointed oval, designed for different rock formations.

[0003] The toothed hob drill bit applies static pressure and impact load to the rock strata through the revolution generated by the rotation of the drill bit, combined with the rotation of the cutting teeth, resulting in shearing and crushing effects.

[0004] When machining a toothed hob, the upper tool holder needs to be machined to insert carbide teeth into the tool holder to form the corresponding tool body, and then it is assembled and sold for use.

[0005] When moving a tool holder during machining, it is usually clamped using a device. Because the machining surface of the tool holder is angled, clamping it requires manual adjustment, increasing labor intensity and affecting clamping efficiency. To address this problem, we propose a quick-clamping fixture for toothed hobbing drill bits. Utility Model Content

[0006] The purpose of this invention is to address the shortcomings of existing technologies where clamping a tool holder is typically used when it is being moved for machining. Since the machining surface of the tool holder has an angle, clamping it requires manual adjustment of the tool holder, which increases the labor intensity of personnel and affects clamping efficiency. Therefore, this invention proposes a quick clamping fixture for toothed hobbing drill bits.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A quick-clamping fixture for a toothed hobbing drill bit is designed, comprising a tool holder, two support plates, and two locating pins. The tool holder is located between the two support plates. One side of the tool holder has a connecting hole, and the locating pins are slidable within the connecting hole. A-locating rings are provided on both the left and right sides of the tool holder, and the A-locating rings are installed outside the locating pins. The fixture also includes:

[0009] Two movable plates, the tool holder is located between the two movable plates and the two movable plates are located between two support plates, and a rotating hole is provided on one side of each movable plate, and the positioning pin can rotate inside the rotating hole;

[0010] A lifting plate is located between two support plates and below the knife holder. Guide plates are connected to both sides of the lifting plate. A guide groove is provided on the side of the support plate facing the lifting plate, and the guide plate can slide inside the guide groove.

[0011] Two connecting rods are located on the upper side of the lifting plate, and two positioning strips slide on the outer side of the connecting rods;

[0012] A clamping and rotating unit is located between two support plates and two movable plates, and the clamping and rotating unit can automatically clamp the tool holder;

[0013] An adjustable support unit is located between the lifting plate and the two support plates, and the adjustable support unit can support the tool holder.

[0014] Preferably, the clamping and rotating unit includes four A electric push rods, two auxiliary parts, and a rotating part. The moving plate has A mounting holes at both ends on one side. A guide ring is connected to the inner side of each A mounting hole. Two guide rods are connected to the inner sides of the two support plates. The guide rods can slide inside the guide rings. One side of the support plate has an A through hole. An A mounting plate is connected to the side of the support plate away from the lifting plate. The A electric push rods are mounted on the upper side of the A mounting plate. The shaft end of the A electric push rod passes through the A through hole and connects to the moving plate. The rotating part is located between the moving plate and the positioning pin. An auxiliary ring is provided outside the A positioning ring. The auxiliary part is located between the auxiliary ring and the positioning pin. The A electric push rods are connected to a power supply and a controller via wires.

[0015] By adopting the above technical solution, the clamping and rotating unit can automatically clamp and position the tool holder, which improves the efficiency of clamping the tool holder and reduces the labor intensity of personnel.

[0016] Preferably, the rotating part includes a motor, an A bevel gear is mounted on the end of the motor shaft, the A bevel gear drives a B bevel gear through tooth meshing, the B bevel gear is located on the moving plate away from the tool holder, the B bevel gear is connected to the outside of the positioning pin, the motor is mounted on one side of the moving plate, and the motor is connected to a power supply and a controller through wires.

[0017] By adopting the above technical solution, the rotating part can drive the tool holder to rotate, making it convenient for the tool holder to be at a suitable angle.

[0018] Preferably, the auxiliary part includes a spring and a support cylinder. The support cylinder has an A through hole and an A placement groove on one side. The positioning pin is connected to the inside of the A through hole. An adjusting cylinder slides inside the A placement groove. A B placement groove is provided on one side of the adjusting cylinder. The spring is located inside the A placement groove and the B placement groove. The auxiliary ring is connected to the adjusting cylinder. The adjusting cylinder has four sliding holes on both its outer and inner sides. The sliding holes communicate with the inside of the B placement groove. A limit block slides inside the sliding hole. The limit block is connected to the inside of the A placement groove. The support cylinder is rotatably connected to the moving plate.

[0019] By adopting the above technical solution, the auxiliary part can improve the stability of the device clamping the tool holder.

[0020] Preferably, the adjustable support unit includes four electric slide rails, four B electric push rods, and a C electric push rod. The upper side of the lifting plate has four B mounting holes. The B electric push rods are installed inside the B mounting holes, and their shaft ends are rotatably connected to the lower side of the positioning strip. A B positioning ring is installed on the left end of the outer side of the connecting rod, and a guide block is connected to the upper side of the guide plate on the right end. A B through hole is provided on one side of the guide block, and a B mounting plate is connected to the right side of the guide block. The C electric push rod is installed on the upper side of the B mounting plate, and a positioning block is provided on the left side of the guide block. The shaft end of the C electric push rod passes through the B through hole and connects to the positioning block. The support plate has two C mounting holes and an auxiliary hole on one side. The C electric push rods and the B mounting plate can slide inside the auxiliary holes. The electric slide rails are installed inside the C mounting holes, and the guide plate is connected to the sliding end of the electric slide rails. The electric slide rails, B electric push rods, and C electric push rods are connected to a power supply and a controller via wires.

[0021] By adopting the above technical solution, the adjustable support unit can adjust the angle and position of the positioning bar, allowing the positioning bar to pre-place tool holders of different sizes, which facilitates subsequent clamping and positioning and improves the efficiency of the device's clamping and positioning.

[0022] The present invention provides a quick clamping fixture for toothed hobbing drill bits, which has the following advantages:

[0023] 1. By setting up connecting rods, positioning bars, and adjustable support units, tool holders of different sizes can be pre-supported, which facilitates subsequent clamping, improves clamping efficiency, and enhances the applicability of the device.

[0024] 2. By setting up auxiliary parts, the tool holder can be clamped better, which improves the clamping stability of the device. Attached Figure Description

[0025] Figure 1 This is a front three-dimensional structural diagram of a quick clamping fixture for toothed hobbing drill bits proposed in this utility model;

[0026] Figure 2 The present utility model proposes Figure 1 A magnified three-dimensional structural diagram of a portion of area A in the middle;

[0027] Figure 3 The present utility model proposes Figure 1 A magnified three-dimensional structural diagram of a portion of area B in the middle section;

[0028] Figure 4 The present utility model proposes Figure 1 A magnified three-dimensional structural diagram of a portion of the central C area;

[0029] Figure 5 This is a three-dimensional structural diagram of the right side of a quick-clamping fixture for a toothed hob drill bit proposed in this utility model;

[0030] Figure 6 The present utility model proposes Figure 5 A magnified three-dimensional structural diagram of a portion of the central D region;

[0031] Figure 7 The present utility model proposes Figure 5 A magnified three-dimensional structural diagram of a portion of the central E region;

[0032] Figure 8 This is a front-section three-dimensional structural diagram of a quick-clamping fixture for toothed hobbing drill bits proposed in this utility model;

[0033] Figure 9 The present utility model proposes Figure 8 A magnified three-dimensional structural diagram of a portion of the central F region;

[0034] Figure 10 The present utility model proposes Figure 8 A magnified three-dimensional structural diagram of a portion of the G region;

[0035] Figure 11 The present utility model proposes Figure 8 A magnified three-dimensional structural diagram of the middle H region.

[0036] In the diagram: 1. Tool holder; 2. Support plate; 3. Positioning pin; 4. Positioning ring A; 5. Moving plate; 6. Lifting plate; 7. Connecting rod; 8. Clamping and rotating unit; 81. Electric push rod A; 82. Auxiliary part; 821. Motor; 822. Bevel gear A; 823. Bevel gear B; 83. Rotating part; 831. Spring; 832. Support cylinder; 833. Adjusting cylinder; 834. Limiting block; 84. Guide ring; 85. Guide rod; 86. Mounting plate A; 87. Auxiliary ring; 9. Adjustable support unit; 91. Electric slide rail; 92. Electric push rod B; 93. Electric push rod C; 94. Positioning ring B; 95. Guide block; 96. Mounting plate B; 97. Positioning block; 10. Guide plate; 11. Positioning strip. Detailed Implementation

[0037] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0038] Reference Figure 1-11 A quick-clamping fixture for a toothed hobbing drill bit includes a tool holder 1, two support plates 2, and two positioning pins 3. The tool holder 1 is located between the two support plates 2. One side of the tool holder 1 has a connecting hole, and the positioning pins 3 can slide inside the connecting hole. A positioning rings 4 are provided on both the left and right sides of the tool holder 1. The A positioning rings 4 are installed on the outside of the positioning pins 3. The contact surface between the A positioning rings 4 and the tool holder 1 has a friction layer to increase the friction between the two. The positioning pins 3 slide into the connecting hole on the tool holder 1 to support it, while the A positioning rings 4 can rotate the tool holder 1 and improve the stability of the tool holder 1 after clamping. The support plates 2 are installed on the corresponding platform or trolley for convenient use of the fixture. It also includes: two moving plates 5, a lifting plate 6, two connecting rods 7, and a clamping and rotating unit 8.

[0039] The tool holder 1 is located between two movable plates 5 and the two movable plates 5 are located between two support plates 2. A rotating hole is provided on one side of the movable plate 5, and the positioning pin 3 can rotate inside the rotating hole.

[0040] The clamping and rotating unit 8 is located between the two support plates 2 and the two movable plates 5. The clamping and rotating unit 8 can automatically clamp the tool holder 1. The clamping and rotating unit 8 includes four A-type electric push rods 81, two auxiliary parts 82, and a rotating part 83. An auxiliary ring 87 is provided on the outer side of the A-type positioning ring 4. The auxiliary part 82 is located between the auxiliary ring 87 and the positioning pin 3. The auxiliary part 82 includes a spring 831 and a support cylinder 832. One side of the support cylinder 832 has an A-type through hole and an A-type placement groove. The positioning pin 3 is connected to the inner side of the A-type through hole. An adjusting cylinder 833 slides inside the A-type placement groove. One side of the adjusting cylinder 833 has a B-type placement groove. The spring 831 is located inside the A-type placement groove and the B-type placement groove. The auxiliary ring 87 is connected to the adjusting cylinder 833. Four sliding holes are provided on both the outer and inner sides. The sliding holes communicate with the inner side of the B placement groove. A limit block 834 slides inside the sliding hole. The limit block 834 is connected to the inner side of the A placement groove. The support cylinder 832 is rotatably connected to the moving plate 5. When the positioning pin 3 and the A positioning ring 4 clamp the tool holder 1, the auxiliary ring 87 will contact the tool holder 1. During the clamping process, the adjusting cylinder 833 will slide towards the support cylinder 832. Under the action of the spring 831, the adjusting cylinder 833 will push the auxiliary ring 87 against the tool holder 1, which can better clamp the tool holder 1. At the same time, the adjusting cylinder 833 and the support cylinder 832 will rotate together through the limit block 834, so that the auxiliary ring 87 will rotate together with the positioning pin 3, which improves the stability of the device.

[0041] The movable plate 5 has mounting holes A at both the front and rear ends on one side. A guide ring 84 is connected to the inside of the mounting hole A. Two guide rods 85 are connected to the inside of the two support plates 2. The guide rods 85 can slide inside the guide ring 84. The guide ring 84, together with the guide ring 84, can guide and limit the movement of the movable plate 5, making the movement of the movable plate 5 more stable. A through hole A is provided on one side of the support plate 2. A mounting plate 86 is connected to the side of the support plate 2 away from the lifting plate 6. An electric push rod 81 is installed on the upper side of the mounting plate 86. The shaft end of the electric push rod 81 passes through the through hole A and is connected to the movable plate 5. The rotating part 83 is located between the movable plate 5 and the positioning pin 3. The electric push rod 81 is connected to the power supply and the controller through the wire. The electric push rod 81 will move the movable plate 5, and the movable plate 5 will move the positioning pin 3 together, so that the positioning pin 3 and the positioning ring 4 can automatically clamp the tool holder 1, improving the clamping efficiency.

[0042] The rotating part 83 includes a motor 821. An A bevel gear 822 is mounted on the shaft end of the motor 821. The A bevel gear 822 drives a B bevel gear 823 through tooth meshing. The B bevel gear 823 is located on the moving plate 5 away from the tool holder 1. The B bevel gear 823 is connected to the outside of the positioning pin 3. The motor 821 is mounted on one side of the moving plate 5. The motor 821 is connected to the power supply and the controller through wires. The motor 821 drives the positioning pin 3 to rotate on the moving plate 5 through the A bevel gear 822 and the B bevel gear 823, so that the positioning pin 3 and the A positioning ring 4 drive the tool holder 1 to rotate. This can automatically adjust the upward orientation of the tool holder 1, which is convenient for subsequent use of the tool holder 1.

[0043] The lifting plate 6 is located between the two support plates 2 and below the knife holder 1. The connecting rod 7 is located on the upper side of the lifting plate 6. Two positioning strips 11 slide on the outer side of the connecting rod 7. Guide plates 10 are connected to both the left and right sides of the lifting plate 6. The support plate 2 has a guide groove on the side facing the lifting plate 6. The guide plate 10 can slide inside the guide groove.

[0044] Adjustable support unit 9, located between lifting plate 6 and two support plates 2, supports tool holder 1. Adjustable support unit 9 includes four electric slide rails 91, four B electric push rods 92, and C electric push rods 93. Lifting plate 6 has four B mounting holes on its upper side. The B electric push rods 92 are installed inside the B mounting holes, with their shaft ends rotatably connected to the lower side of positioning strip 11. A B positioning ring 94 is installed on the left end of the outer side of connecting rod 7. A guide block 95 is connected to the upper side of guide plate 10 on the right end. A B through hole is provided on one side of guide block 95. A B mounting plate 96 is connected to the right side of guide block 95. C electric push rods 93 are installed on the upper side of B mounting plate 96. A positioning block 97 is provided on the left side of guide block 95. The shaft end of C electric push rod 93 passes through the B through hole and connects to the positioning block 97. Two C mounting holes are provided on one side of support plate 2. The auxiliary hole allows electric push rod 93 (C) and mounting plate 96 (B) to slide inside. Electric slide rail 91 is installed inside mounting hole C. Guide plate 10 is connected to the sliding end of electric slide rail 91. Electric slide rail 91, electric push rod 92 (B), and electric push rod 93 (C) are connected to the power supply and controller via wires. Electric push rod 92 (B) can adjust the height of positioning strip 11. In conjunction with connecting rod 7 and positioning ring 94 (B), the angle of the two positioning strips 11 can be adjusted. Then, electric push rod 93 (C) can adjust the horizontal position of positioning block 97, allowing positioning block 97 to limit the position of the large end of tool holder 1, thereby supporting and positioning tool holders 1 of different sizes, ensuring that the connecting hole on it is horizontal. Electric slide rail 91 can move lifting plate 6 up and down, allowing lifting plate 6 to move tool holder 1 to a suitable height, facilitating subsequent clamping and improving clamping efficiency.

[0045] Operating principle;

[0046] The height of the positioning bar 11 and the angle of the two corresponding positioning bars 11 are adjusted by the adjustable support unit 9, and the horizontal position of the positioning block 97 is adjusted to achieve pre-support for tool holders 1 of different sizes. Then the clamping and rotating unit 8 automatically clamps the tool holder 1.

[0047] In the description of this patent, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this utility model; the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; furthermore, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly, for example, they can be fixed connections, detachable connections, or integral connections; they can be mechanical connections or electrical connections; they can be direct connections or indirect connections through an intermediate medium; they can be internal connections between two components. For those skilled in the art, the specific meaning of the above terms in this patent can be understood according to the specific circumstances.

[0048] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A quick-clamping fixture for a toothed hobbing drill bit, comprising a tool holder (1), two support plates (2) and two locating pins (3), wherein the tool holder (1) is located between the two support plates (2), one side of the tool holder (1) has a connecting hole, the locating pins (3) are slidable inside the connecting hole, and A-locating rings (4) are provided on both the left and right sides of the tool holder (1), the A-locating rings (4) being installed on the outside of the locating pins (3), characterized in that, Also includes: Two movable plates (5), the knife holder (1) is located between the two movable plates (5) and the two movable plates (5) are located between the two support plates (2), and a rotating hole is provided on one side of the movable plate (5), and the positioning pin (3) can rotate inside the rotating hole; Lifting plate (6), the lifting plate (6) is located between two support plates (2) and under the knife holder (1). The left and right sides of the lifting plate (6) are connected to guide plates (10). The support plate (2) has a guide groove on the side facing the lifting plate (6). The guide plate (10) can slide inside the guide groove. Two connecting rods (7) are located on the upper side of the lifting plate (6), and two positioning strips (11) slide on the outer side of the connecting rods (7); The clamping and rotating unit (8) is located between two support plates (2) and two moving plates (5). The clamping and rotating unit (8) can automatically clamp the tool holder (1). An adjustable support unit (9) is located between the lifting plate (6) and the two support plates (2). The adjustable support unit (9) can support the tool holder (1).

2. The quick-clamping fixture for a toothed hob drill bit according to claim 1, characterized in that, The clamping and rotating unit (8) includes four A electric push rods (81), two auxiliary parts (82), and a rotating part (83). The moving plate (5) has A mounting holes at both the front and rear ends on one side. A guide ring (84) is connected to the inner side of each A mounting hole. Two guide rods (85) are connected to the inner sides of the two support plates (2). The guide rods (85) can slide inside the guide rings (84). One side of the support plate (2) has an A through hole. The side of the support plate (2) away from the lifting plate (6) is connected to... An A mounting plate (86) is attached, and the A electric push rod (81) is mounted on the upper side of the A mounting plate (86). The shaft end of the A electric push rod (81) passes through the A through hole and is connected to the moving plate (5). The rotating part (83) is located between the moving plate (5) and the positioning pin (3). An auxiliary ring (87) is provided on the outside of the A positioning ring (4). The auxiliary part (82) is located between the auxiliary ring (87) and the positioning pin (3). The A electric push rod (81) is connected to the power supply and the controller through a wire.

3. The quick-clamping fixture for a toothed hob drill bit according to claim 2, characterized in that, The rotating part (83) includes a motor (821), and an A bevel gear (822) is mounted on the shaft end of the motor (821). The A bevel gear (822) drives a B bevel gear (823) through tooth meshing. The B bevel gear (823) is located on the moving plate (5) away from the tool holder (1). The B bevel gear (823) is connected to the outside of the positioning pin (3). The motor (821) is mounted on one side of the moving plate (5). The motor (821) is connected to the power supply and the controller through wires.

4. The quick-clamping fixture for a toothed hob drill bit according to claim 3, characterized in that, The auxiliary part (82) includes a spring (831) and a support cylinder (832). The support cylinder (832) has an A through hole and an A placement groove on one side. The positioning pin (3) is connected to the inside of the A through hole. An adjusting cylinder (833) slides inside the A placement groove. A B placement groove is provided on one side of the adjusting cylinder (833). The spring (831) is located inside the A placement groove and the B placement groove. The auxiliary ring (87) is connected to the adjusting cylinder (833). The adjusting cylinder (833) has four sliding holes on both the outer and inner sides. The sliding holes communicate with the inside of the B placement groove. A limit block (834) slides inside the sliding hole. The limit block (834) is connected to the inside of the A placement groove. The support cylinder (832) is rotatably connected to the moving plate (5).

5. The quick-clamping fixture for a toothed hob drill bit according to claim 1, characterized in that, The adjustable support unit (9) includes four electric slide rails (91), four B electric push rods (92) and C electric push rods (93). The upper side of the lifting plate (6) is provided with four B mounting holes. The B electric push rods (92) are installed inside the B mounting holes. The shaft end of the B electric push rods (92) is rotatably connected to the lower side of the positioning strip (11). The left end of the outer side of the connecting rod (7) is equipped with a B positioning ring (94). The upper side of the guide plate (10) on the right end is connected with a guide block (95). One side of the guide block (95) is provided with a B through hole. The right side of the guide block (95) is connected with a B mounting plate (96). The C electric push rods (91, 92, 93) are installed inside the B mounting holes. 3) Installed on the upper side of mounting plate B (96), the guide block (95) has a positioning block (97) on its left side, the shaft end of electric push rod C (93) passes through the through hole B and is connected to the positioning block (97), the support plate (2) has two mounting holes C and an auxiliary hole on one side, the electric push rod C (93) and mounting plate B (96) can slide inside the auxiliary hole, the electric slide rail (91) is installed inside the mounting hole C, the guide plate (10) is connected to the sliding end of the electric slide rail (91), the electric slide rail (91), electric push rod B (92) and electric push rod C (93) are connected to the power supply and controller through wires.

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