Milling machine with tool bit convenient to replace

Abstract

The utility model relates to a milling machine with a tool bit convenient to replace, and relates to the technical field of milling machine equipment.The milling machine comprises a machine body, a spindle box, a spindle, a connecting rod and the tool bit, the spindle box is installed on the machine body, the spindle is connected to one end of the bottom of the spindle box, a first connecting assembly is arranged at the first end of the connecting rod, and a second connecting assembly is arranged at the second end of the connecting rod; the first connecting assembly is used for detachably connecting the connecting rod with the main shaft, and the second connecting assembly is used for detachably connecting the connecting rod with the tool bit. The device has the effects that the tool bit is convenient to replace, and safety accidents are reduced.

Description

Technical Field

[0001] The present application relates to the technical field of milling machine equipment, and in particular to a milling machine which is convenient for replacing a cutter head. Background Art

[0002] Valves often require high-precision manufacturing to achieve their intended functions. Milling machines can provide high-precision processing to ensure that the size, shape and surface finish of the valve meet the design requirements.

[0003] According to the structural characteristics, valves can be divided into stop valves, ball valves, butterfly valves, gate valves, check valves, etc. When processing different types of valves on a milling machine, different types of cutter heads are required for different processing requirements. For some valves with complex internal structures or specific shapes, such as valves with special bevels or curves, it is necessary to replace specific cutter heads during the processing to complete the processing of special surfaces. It can be seen that in the process of processing valves, the cutter may need to be changed at any time according to different processing requirements. However, due to the high-speed cutting of the cutter head during use, the cutter head has a high temperature, and directly touching and replacing the cutter head is prone to safety accidents. Utility Model Content

[0004] In order to improve the problem that safety accidents may easily occur when replacing the cutter head under the influence of high temperature, the present application provides a milling machine that is easy to replace the cutter head.

[0005] The present application provides a milling machine that is easy to replace the cutter head, which adopts the following technical solution:

[0006] A milling machine that is easy to replace a cutter head comprises a bed, a spindle box, a spindle, a connecting rod and a cutter head, wherein the spindle box is installed on the bed, the spindle is connected to one end of the bottom of the spindle box, a first connecting component is provided at the first end of the connecting rod, and a second connecting component is provided at the second end of the connecting rod. The first connecting component is used to detachably connect the connecting rod to the spindle, and the second connecting component is used to detachably connect the connecting rod to the cutter head.

[0007] By adopting the above technical solution, the cutter head is connected to the main shaft using a connecting rod. When the cutter head needs to be replaced, the connecting rod is first removed from the main shaft through the first connecting component, thereby avoiding direct contact with the cutter head when the cutter head is in a high temperature state. After that, when the cutter head cools down, the cutter head can be removed from the connecting rod through the second connecting component. The operation is very safe and reliable.

[0008] Optionally, the first connecting component includes a plug and a locking piece, the plug is arranged at the first end of the connecting rod, a slot adapted to the plug is opened on the main shaft, the plug is inserted into the slot, and the locking piece is used to lock the plug in the slot.

[0009] By adopting the above technical solution, the plug is inserted into the slot and then locked in the slot using a locking piece, thereby effectively connecting the cutter head to the main shaft, which has a simple structure and is easy to install.

[0010] Optionally, the locking member includes a locking bolt, and inner walls of the plug and the slot are both provided with through holes, and the locking bolt is connected between two of the through holes.

[0011] By adopting the above technical solution, a locking bolt is used to connect between the through holes between the plug and the slot, so that the plug is effectively locked in the slot, with a simple structure and convenient assembly and disassembly.

[0012] Optionally, the second connecting component includes a connecting disk, a clamping plate and a driving member, the connecting disk is arranged at the second end of the main shaft, and an accommodating cavity for connecting the cutter head is formed at the end of the connecting disk away from the main shaft, a plurality of clamping plates are distributed around the inner wall of the accommodating cavity, and the clamping plate is slidably connected in the accommodating cavity, and the driving member is used to drive the clamping plate to slide so that the clamping plate clamps the cutter head.

[0013] By adopting the above technical solution, the cutter head is connected in the accommodating cavity, and a driving member is used to drive the clamp to slide until the cutter head is clamped, thereby effectively realizing the connection between the connecting rod and the cutter head. The sliding clamp is suitable for clamping and fixing cutter heads of different sizes, which is very practical.

[0014] Optionally, the driving member includes a driving screw, one end of which is hinged to the splint, and the other end passes through the inner wall of the accommodating cavity and extends to the outside of the connecting disk. The driving screw is threadedly connected to the connecting disk, and the axis of the driving screw is perpendicular to the axis of the connecting disk. A limit member for limiting the rotation of the splint is also provided in the accommodating cavity.

[0015] By adopting the above technical solution, the driving screw is rotated so that the driving screw drives the clamping plate to produce relative displacement until the clamping plate abuts against the cutter head. The driving screw is tightened on the connecting plate. The structure is reliable, the connection to the cutter head is effectively realized, and disassembly is also very convenient.

[0016] Optionally, the limiting member includes a limiting spring, one end of which is fixedly connected to the inner wall of the cavity, and the other end of which is fixedly connected to the clamping plate.

[0017] By adopting the above technical solution, the clamping plate is prevented from rotating under the action of the limit spring, so that the clamping plate is always aligned with the cutter head during use, and the clamping plate is easy to operate in the accommodating cavity, which is convenient to use.

[0018] Optionally, a protective sleeve is mounted on the connecting rod.

[0019] By adopting the above technical solution, the protective sleeve provided makes the disassembly of the connecting rod more stable, reduces the occurrence of slipping, and is very reliable.

[0020] Optionally, a handle is provided at one end of the drive screw extending to the outside of the connecting disk.

[0021] By adopting the above technical solution, the provided handle is easy to operate and drive the screw to rotate, which is very convenient.

[0022] In summary, this application includes the following beneficial technical effects:

[0023] 1. Through the setting of the connecting rod and the first connecting assembly and the second connecting assembly, under the action of the first connecting assembly and the second connecting assembly, the connecting rod can be detachably connected between the main shaft and the cutter head, and then when the cutter head is replaced, the connecting rod is removed from the main shaft without contacting the cutter head, thereby effectively reducing the safety accidents caused by the cutter head replacement, which is very reliable;

[0024] 2. The splint and driving screw are set, and under the action of the driving screw, the splint can slide and adjust in the accommodating cavity. When the driving screw is in a tightened state, the splint effectively clamps the cutter head to achieve the installation of the cutter head and the connecting rod, and the accommodating cavity is suitable for the installation of cutter heads of different sizes, which is very practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application;

[0026] Figure 2 is a schematic cross-sectional structure diagram for illustrating a plug according to an embodiment of the present application;

[0027] Figure 3 It is a schematic diagram of the cross-sectional structure of the embodiment of the present application for displaying the splint.

[0028] Figure numerals: 1. bed; 2. spindle box; 3. spindle; 30. slot; 4. connecting rod; 40. protective cover; 5. cutter head; 6. workbench; 7. motor; 80. plug; 81. locking bolt; 82. through hole; 90. connecting plate; 91. clamping plate; 92. driving screw; 93. limiting spring; 94. handle; 95. accommodating chamber. DETAILED DESCRIPTION

[0029] The present application is further described in detail below in conjunction with the accompanying drawings.

[0030] The present application embodiment discloses a milling machine which is convenient for replacing a cutter head. Figure 1 and Figure 2, including a bed 1, a spindle box 2, a spindle 3, a connecting rod 4 and a cutter head 5. In this embodiment, the bed 1 is the main bearing part of the milling machine, and a workbench 6 is also installed on the bed 1, and then the spindle box 2 is installed on the bed 1 and is located on the top of the workbench 6; then the spindle 3 is connected to one end of the bottom of the spindle box 2, and a motor 7 is also installed on the top of the spindle box 2, and the spindle 3 bearing (not shown in the figure) and gears (not shown in the figure) and other transmission components are installed inside the spindle box 2, which are used to transmit the power of the motor to the spindle 3 to rotate the spindle 3; finally, a first connecting component is provided at the first end of the connecting rod 4, and a second connecting component is provided at the second end of the connecting rod 4, the first connecting component is used to detachably connect the connecting rod 4 to the spindle 3, and the second connecting component is used to detachably connect the connecting rod 4 to the cutter head 5.

[0031] Therefore, under the action of the connecting rod 4, the cutter head 5 is effectively connected to the spindle 3, and the spindle 3 rotates to effectively drive the cutter head 5 to rotate, thereby completing the workpiece processing. Since the connecting rod 4 is installed between the cutter head 5 and the spindle 3 through the first connecting assembly and the second connecting assembly, when the cutter head 5 needs to be replaced, the connecting rod 4 can be operated to be removed from the spindle 3 without directly contacting the cutter head 5. After the cutter head 5 cools down, the cutter head 5 can be removed from the connecting rod 4, which is very convenient and improves the safety of the cutter head 5 replacement operation. In addition, a protective cover 40 is also mounted on the connecting rod 4. Under the action of the protective cover 40, the slippage of the connecting rod 4 when held is further reduced, thereby improving the protective effect.

[0032] Reference Figure 2 In this embodiment, the first connecting component includes a plug 80 and a locking piece. The plug 80 is arranged at the first end of the connecting rod 4, and then a slot 30 adapted to the plug 80 is opened on the main shaft 3, and the plug 80 is inserted into the slot 30, and then the plug 80 is locked in the slot 30 using the locking piece; the locking piece includes a locking bolt 81, and the inner walls of the plug 80 and the slot 30 are both provided with a through hole 82, and the through hole 82 is provided with a strip hole, so as to facilitate the alignment of the two through holes 82, and finally the locking bolt 81 is connected between the two through holes 82, and the locking bolt 81 is set as a stud bolt. By tightening the nuts at both ends of the stud bolt and pressing it against the outer wall of the main shaft 3, the connection between the main shaft 3 and the connecting rod 4 is effectively realized, and the structure is reliable and easy to disassemble.

[0033] Reference Figure 1 and Figure 3In this embodiment, the second connecting component includes a connecting disk 90, a clamping plate 91 and a driving member, wherein the connecting disk 90 is welded to the second end of the main shaft 3, and an accommodating cavity 95 for connecting the cutter head 5 is opened at the end of the connecting disk 90 away from the main shaft 3, and at least two clamping plates 91 are distributed around the inner wall of the accommodating cavity 95, and the two clamping plates 91 are symmetrically arranged along the axis of the connecting disk 90, and the shape of the clamping plate 91 is adapted to the cutter head 5 and is set to an arc shape, and the clamping plate 91 is slidably connected in the accommodating cavity 95, and the driving member is used to drive the clamping plate 91 to slide, so that the clamping plate 91 clamps the cutter head 5, effectively realizing the connection of the cutter head 5, and the sliding clamping plate 91 is installed and used to adapt to cutter heads 5 of different sizes.

[0034] Reference Figure 3 In this embodiment, the driving member includes a driving screw 92, one end of which is hinged to the clamping plate 91, and the other end passes through the inner wall of the accommodating cavity 95 and extends to the outside of the connecting disk 90, and then a handle 94 is connected to the end located on the outside of the connecting disk 90, and the driving screw 92 is threadedly connected to the connecting disk 90. ​​At this time, the axis of the driving screw 92 is perpendicular to the axis of the connecting disk 90, and then the driving screw 92 is rotated by the handle 94, so that the driving screw 92 is displaced, thereby effectively driving the clamping plate 91 to slide until the two clamping plates 91 clamp the cutter head 5, and the driving screw 92 is in a tightened state, and the structure is firm.

[0035] In addition, a limit member for limiting the rotation of the clamp 91 is provided in the accommodating cavity 95, including a limit spring 93, one end of the limit spring 93 is fixedly connected to the inner wall of the accommodating cavity, and the other end is fixedly connected to the clamp 91, and at least two limit springs 93 are provided. Under the action of the limit spring 93, the clamp 91 is ensured to slide stably, and relative rotation is avoided during the sliding groove process so that the clamp 91 is aligned with the cutter head 5, thereby ensuring the stability of the clamping of the cutter head 5 and a reliable structure.

[0036] The implementation principle of a milling machine that is easy to replace the cutter head in an embodiment of the present application is as follows: by using a connecting rod 4 to connect with the main shaft 3 and the cutter head 5 respectively, the cutter head 5 is effectively connected to the main shaft 3. When the cutter head 5 needs to be replaced, based on the fact that the connecting rod 4 is detachably connected to the main shaft 3 and the cutter head 5 respectively, the connecting rod 4 can be removed from the main shaft 3 without contacting the cutter head 5, thereby reducing safety accidents caused by high temperature. Later, when the cutter head 5 cools down, the cutter head 5 can be removed from the connecting rod 4, which is very convenient.

[0037] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A milling machine that is easy to replace the cutter head, characterized in that: include: A bed (1), a spindle box (2), a spindle (3), a connecting rod (4) and a tool head (5), wherein the spindle box (2) is mounted on the bed (1), the spindle (3) is connected to one end of the bottom of the spindle box (2), a first connecting component is provided at the first end of the connecting rod (4), and a second connecting component is provided at the second end of the connecting rod (4), the first connecting component is used to detachably connect the connecting rod (4) and the spindle (3), and the second connecting component is used to detachably connect the connecting rod (4) and the tool head (5).

2. A milling machine for easy replacement of cutter heads according to claim 1, characterized in that: The first connecting component comprises a plug (80) and a locking member, wherein the plug (80) is arranged at the first end of the connecting rod (4), a slot (30) adapted to the plug (80) is opened on the main shaft (3), the plug (80) is inserted into the slot (30), and the locking member is used to lock the plug (80) in the slot (30).

3. A milling machine for easy replacement of cutter heads according to claim 2, characterized in that: The locking member comprises a locking bolt (81), and inner walls of the plug (80) and the slot (30) are both provided with through holes (82), and the locking bolt (81) is connected between two of the through holes (82).

4. A milling machine for easily replacing a cutter head according to claim 1, characterized in that: The second connecting component includes a connecting disk (90), a clamping plate (91) and a driving member, wherein the connecting disk (90) is arranged at the second end of the main shaft (3), and an accommodating cavity (95) for connecting the cutter head (5) is opened at one end of the connecting disk (90) away from the main shaft (3), and a plurality of clamping plates (91) are distributed around the inner wall of the accommodating cavity (95), and the clamping plate (91) is slidably connected in the accommodating cavity (95), and the driving member is used to drive the clamping plate (91) to slide so that the clamping plate (91) clamps the cutter head (5).

5. A milling machine for facilitating the replacement of a cutter head according to claim 4, characterized in that: The driving member includes a driving screw (92), one end of which is hinged to the clamping plate (91), and the other end of which passes through the inner wall of the accommodating cavity (95) and extends to the outside of the connecting disk (90). The driving screw (92) is threadedly connected to the connecting disk (90), and the axis of the driving screw (92) is perpendicular to the axis of the connecting disk (90). A limiting member for limiting the rotation of the clamping plate (91) is also provided in the accommodating cavity (95).

6. A milling machine for facilitating the replacement of a cutter head according to claim 5, characterized in that: The limiting member comprises a limiting spring (93), one end of the limiting spring (93) is fixedly connected to the inner wall of the accommodating cavity (95), and the other end of the limiting spring (93) is fixedly connected to the clamping plate (91).

7. A milling machine for easily replacing a cutter head according to claim 1, characterized in that: The connecting rod (4) is sleeved with a protective sleeve (40).

8. The milling machine with easy-to-replace cutter head according to claim 5, characterized in that: One end of the driving screw rod (92) extending to the outside of the connecting plate (90) is provided with a handle (94).

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