Four-milling-head mechanism of six-face drill

Abstract

The utility model relates to the technical field of six-face drills, and discloses a four-milling-head mechanism of a six-face drill, which comprises a four-milling-head body, a supporting piece arranged on the periphery of the four-milling-head body and moving in the vertical direction along with the four-milling-head body, and a pressure applying plate arranged on the supporting piece, the supporting piece is provided with an adjusting piece used for adjusting the relative position of the pressure applying plate and the supporting piece in the vertical direction, so that when the four-milling-head body moves to the position where the workpiece is milled in the vertical direction, the pressure applying plate abuts against the top of the workpiece under the adjusting effect of the adjusting piece and applies downward pressure to the workpiece. When the four-milling-head body moves to the position, needing to be milled, of the workpiece, the adjusting piece adjusts the pressure applying plate so that the pressure applying plate can make contact with the top of the workpiece and apply downward pressure to the workpiece, and the situation that the workpiece warps is overcome; and meanwhile, the situation that deviation occurs between the position needing to be milled and the milling cutter due to the fact that the bottom of the workpiece is provided with milling particles is avoided, and then the machining precision of the workpiece is improved.

Description

Technical Field

[0001] The present application belongs to the technical field of six-sided drilling, and specifically relates to a four-milling head mechanism for a six-sided drilling. Background Art

[0002] A six-sided drill is a device that can process the six faces of a workpiece. It has at least six drill bits, each of which cuts into the workpiece at a different angle to achieve efficient drilling operations. Due to its advantages such as high drilling accuracy and high production efficiency, it has gradually replaced the traditional single-sided drill and become an important tool in the modern processing industry.

[0003] With the advancement of technology, some six-sided drills are equipped with four milling heads, which are mainly used for milling on the four sides of the workpiece. However, when milling the side of the workpiece, the upper end face of the workpiece lacks a limit, which may cause the workpiece to warp. At the same time, if there are milling particles on the bottom of the workpiece, it may cause a deviation between the position of the workpiece required to be milled and the milling cutter, thereby affecting the processing accuracy of the workpiece. Utility Model Content

[0004] The present application provides a four-milling head mechanism for six-sided drilling to improve the machining accuracy of workpieces.

[0005] The technical solution adopted in this application is:

[0006] A four-milling head mechanism for six-sided drilling comprises a four-milling head body, a support member arranged around the four-milling head body and moving with the four-milling head body in the vertical direction, and a pressure plate arranged on the support member, wherein the support member is provided with an adjusting member for adjusting the relative position of the pressure plate and the support member in the vertical direction, so that when the four-milling head body moves in the vertical direction to a position for milling a workpiece, the pressure plate, under the adjustment action of the adjusting member, contacts the top of the workpiece and applies downward pressure to the workpiece.

[0007] By adopting the above technical solution, when milling the side of the workpiece, the four-milling head body moves downward first, and then the four-milling head body drives the support member to move downward, and the support member drives the pressure plate to move downward, and when the four-milling head body moves to the position where the workpiece needs to be milled, the adjustment member adjusts the pressure plate so that the pressure plate contacts the top of the workpiece and applies downward pressure to the workpiece to overcome the warping of the workpiece, and at the same time avoids the deviation between the required milling position and the milling cutter due to milling particles at the bottom of the workpiece, thereby increasing the processing accuracy of the workpiece.

[0008] Optionally, the adjusting member is a cylinder, a cylinder body of the cylinder is connected to the supporting member, and a piston rod of the cylinder is connected to the pressure plate.

[0009] By adopting the above technical solution, when the four milling head bodies move to the position where the workpiece needs to be milled, the cylinder is started, and then the cylinder adjusts the pressure plate, so that the pressure plate contacts the top of the workpiece under the driving action of the cylinder and applies downward pressure to the workpiece to overcome the warping of the workpiece; and if there are milling particles at the bottom of the workpiece, the workpiece can flatten the milling particles under the pressure of the cylinder to ensure the milling accuracy of the workpiece. By setting the adjustment part as a cylinder, the pressure that the pressure plate can apply to the workpiece can be increased to further ensure the milling accuracy of the workpiece.

[0010] Optionally, the adjusting member includes a connecting portion provided on the pressure plate and an elastic portion for applying a downward elastic force to the pressure plate, the connecting portion is slidably connected to the supporting member, and when the pressure plate contacts the workpiece, the elastic portion is deformed so that the pressure plate applies downward pressure to the workpiece under the action of the elastic portion.

[0011] By adopting the above technical solution, when milling the side of the workpiece, the four-milling head body moves downward first, so that the pressure plate moves downward with the four-milling head body, and when the four-milling head body is about to move to the position where the workpiece needs to be milled, the pressure plate contacts the top of the workpiece, and then the four-milling head body continues to move downward. At this time, the pressure plate applies upward pressure to the elastic part, and the connecting part and the support part slide relative to each other, thereby causing the elastic part to undergo elastic deformation and apply a downward elastic force to the pressure plate, so that the pressure plate applies downward pressure to the workpiece until the four-milling head body moves to the position where the workpiece needs to be milled, and the elastic part and the connecting part stop moving relative to the support part, thereby realizing automatic clamping of the workpiece by the pressure plate. In this process, the need to connect the adjustment part to a power source or other energy source is avoided, thereby reducing the use cost of the four-milling head mechanism, and at the same time reducing the production cost of the four-milling head mechanism.

[0012] Optionally, the connecting portion is a connecting rod provided on the pressure plate, and the elastic portion is a spring sleeved on the outside of the connecting rod.

[0013] By adopting the above technical solution, since the connecting part is a connecting rod arranged on the pressure plate, and the elastic part is a spring sleeved on the outside of the connecting rod, when the spring is deformed, the connecting rod can guide the deformation direction of the spring to increase the stability of the spring, thereby ensuring the elastic effect of the spring on the pressure plate, thereby ensuring the pressing effect of the pressure plate on the workpiece, and further ensuring the milling accuracy of the workpiece.

[0014] Optionally, an adjusting nut is provided between the pressure plate and the supporting member, the relative position of the adjusting nut and the connecting rod can be adjusted, and the end of the spring acts on the adjusting nut.

[0015] By adopting the above technical solution, if the downward pressure applied by the pressure plate on the workpiece is small, the adjusting nut can be adjusted to change the relative position of the adjusting nut and the connecting rod, so that the axial length of the spring becomes shorter, thereby increasing the elastic force applied by the spring to the pressure plate, thereby increasing the downward pressure applied by the pressure plate on the workpiece; if the downward pressure applied by the pressure plate on the workpiece is large, the adjusting nut can be adjusted to lengthen the axial length of the spring to reduce the elastic force applied by the spring to the pressure plate, thereby reducing the downward pressure applied by the pressure plate on the workpiece. By setting the adjusting nut, the elastic force applied by the spring to the pressure plate can be adjusted to ensure the milling efficiency of the workpiece while ensuring the pressing effect on the workpiece.

[0016] Optionally, the connecting rod is provided with a stress-bearing sheet, and the stress-bearing sheet is located between the spring and the adjusting nut.

[0017] By adopting the above technical solution, since the force-bearing plate is located between the spring and the adjusting nut, the spring is in contact with the adjusting nut through the force-bearing plate to increase the contact area between the spring and the adjusting nut, thereby avoiding a situation where a small gap between the diameter of the spring and the diameter of the adjusting nut causes the spring to expand in the diameter direction, making the adjusting nut unable to play an adjustment role, thereby increasing the stability of the spring.

[0018] Optionally, the adjusting nut is threadedly connected to the connecting rod and is located at the bottom of the spring.

[0019] By adopting the above technical solution, since the adjusting nut is connected to the connecting rod and is located at the bottom of the spring, when the adjusting nut is adjusted, the adjusting nut adjusts the bottom end of the spring to change the relative position of the bottom end of the spring and the pressure plate, thereby achieving the effect of facilitating the adjustment of the adjusting nut.

[0020] Optionally, the support member is provided with a guide tube, the connecting rod is passed through the guide tube, and the adjusting nut is threadedly connected to the guide tube and is located on the top of the spring.

[0021] By adopting the above technical solution, since the connecting rod is inserted into the guide tube, the matching area between the connecting rod and the support member is increased, thereby increasing the stability of the connecting rod movement and avoiding the deflection of the connecting rod and the support member, thereby ensuring the pressing effect of the pressure plate on the workpiece.

[0022] Optionally, the pressure plate is provided with a guide rod slidably connected to the support member, and the guide rod is located on two opposite sides of the adjustment member.

[0023] By adopting the above technical solution, when the pressure plate and the support member slide relative to each other, the guide rod moves along with the pressure plate to make the guide rod and the support member slide relative to each other, and then the sliding cooperation between the guide rod and the support member guides the movement of the pressure plate to increase the stability of the pressure plate, so as to further ensure the pressing effect of the pressure plate on the workpiece.

[0024] Optionally, a contact plate is provided at the bottom of the pressure plate, and the contact plate has a smooth surface that contacts the top of the workpiece.

[0025] By adopting the above technical solution, since a contact plate is provided at the bottom of the pressure plate, the pressure plate contacts the workpiece through the contact surface, and the contact plate has a smooth surface to reduce the friction between the contact plate and the workpiece, thereby reducing the force required to drive the workpiece to move, thereby reducing the workload of the six-sided drill, and then reducing the energy consumption of the six-sided drill, thereby reducing the use cost of the six-sided drill.

[0026] Due to the adoption of the above technical solution, the beneficial effects achieved by this application are as follows:

[0027] 1. The four-milling head mechanism of the six-sided drill in the present application includes a four-milling head body, a support member arranged around the four-milling head body and moving with the four-milling head body in the vertical direction, and a pressure plate arranged on the support member, the support member is provided with an adjusting member for adjusting the relative position of the pressure plate and the support member in the vertical direction, so that when the four-milling head body moves in the vertical direction to the position for milling the workpiece, the pressure plate contacts the top of the workpiece under the adjustment action of the adjusting member and applies downward pressure to the workpiece to overcome the warping of the workpiece, and at the same time avoids the deviation between the required milling position and the milling cutter due to the milling particles at the bottom of the workpiece, thereby increasing the processing accuracy of the workpiece.

[0028] 2. The adjusting member in the present application is a cylinder, the cylinder body of the cylinder is connected to the support member, and the piston rod of the cylinder is connected to the pressure plate to increase the pressure that the pressure plate can apply to the workpiece, so as to further ensure the milling accuracy of the workpiece.

[0029] 3. The adjusting part in the present application includes a connecting part arranged on the pressure plate and an elastic part for applying a downward elastic force to the pressure plate. The connecting part is slidably connected to the supporting part. When the pressure plate contacts the workpiece, the elastic part is deformed so that the pressure plate applies a downward pressure on the workpiece under the action of the elastic part. In this process, the need to connect the adjusting part to a power source or other energy source is avoided, thereby reducing the use cost of the four-milling head mechanism and the production cost of the four-milling head mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0031] Figure 1 This is a schematic structural diagram of the four-milling head mechanism described in one implementation manner of the present application;

[0032] Figure 2 This is a schematic structural diagram of the four-milling head mechanism from another perspective in one implementation manner of the present application;

[0033] Figure 3 This is a schematic diagram of the connection structure between the adjustment member and the pressure plate in one implementation of the present application;

[0034] Figure 4 This is a schematic diagram of the connection structure between the adjusting member and the pressure plate in another embodiment of the present application;

[0035] Figure 5 This is a schematic structural diagram of the adjusting member and the pressure plate from another perspective in another implementation manner of the present application;

[0036] Figure 6 This is a schematic diagram of the connection structure between the adjustment member and the pressure plate in another embodiment of the present application.

[0037] Reference numerals:

[0038] 1. Four-milling head body; 2. Support member; 21. Connecting plate; 22. Reinforcement plate; 23. Mounting plate; 231. Guide tube; 3. Pressure plate; 31. Contact plate; 311. Avoidance; 32. Guide rod; 4. Adjustment member; 41. Connecting part; 411. Adjusting nut; 412. Force-bearing plate; 413. Stop block; 42. Elastic part. DETAILED DESCRIPTION

[0039] In order to more clearly illustrate the overall concept of the present application, a detailed description is given below in an illustrative manner in conjunction with the accompanying drawings.

[0040] In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present application is not limited by the specific embodiments disclosed below. It should be noted that the embodiments of the present application and the features in each embodiment may be combined with each other without conflict.

[0041] In addition, in the description of the present application, it should be understood that the orientations or positional relationships indicated by the terms "top", "bottom", "inside", "outside", "axial", "radial", "circumferential", etc. are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0042] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0043] In the present application, unless otherwise clearly specified and limited, a first feature "above" or "below" a second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more embodiments or examples.

[0044] Reference Figures 1 to 6 , discloses a four-milling head mechanism for six-sided drilling, comprising a four-milling head body 1, a support member 2 arranged around the four-milling head body 1 and moving with the four-milling head body 1 in the vertical direction, and a pressure plate 3 arranged on the support member 2, the support member 2 is provided with an adjusting member 4 for adjusting the relative position of the pressure plate 3 and the support member 2 in the vertical direction, so that when the four-milling head body 1 moves in the vertical direction to a position for milling a workpiece, the pressure plate 3 contacts the top of the workpiece under the adjustment action of the adjusting member 4 and applies downward pressure to the workpiece.

[0045] Specifically, when milling the side of the workpiece, the four-milling head body 1 moves downward first, and then the four-milling head body 1 drives the support member 2 to move downward, and the support member 2 drives the pressure plate 3 to move downward. When the four-milling head body 1 moves to the position where the workpiece needs to be milled, the adjustment member 4 adjusts the pressure plate 3 so that the pressure plate 3 contacts the top of the workpiece and applies downward pressure to the workpiece to overcome the warping of the workpiece, and at the same time avoids the deviation between the required milling position and the milling cutter due to the milling particles at the bottom of the workpiece, thereby increasing the processing accuracy of the workpiece.

[0046] The present application does not specifically limit the structure of the support member 2. Preferably, refer to Figure 1 , Figure 2 and Figure 3 The support member 2 includes a connecting plate 21, a reinforcing plate 22 disposed on the connecting plate 21, and a mounting plate 23 disposed on the connecting plate 21. The reinforcing plate 22 is fixedly connected to the inside of the connecting plate 21 to increase the stability of the connecting plate 21. The connecting plate 21 is C-shaped so that the pressure plate 3 and the four-milling head body 1 can avoid each other to ensure that the two do not interfere with each other. In other embodiments, the support member 2 can also be a block structure disposed on the four-milling head body 1.

[0047] The present application does not specifically limit the structure of the adjusting member 4, and the adjusting member 4 may adopt any one of the following embodiments:

[0048] Embodiment 1. In this embodiment, referring to Figure 1 , Figure 2 and Figure 3 The adjusting member 4 is a cylinder, the cylinder body of the cylinder is connected to the supporting member 2, and the piston rod of the cylinder is connected to the pressure plate 3.

[0049] Specifically, when the four-milling head body 1 moves to the position where the workpiece needs to be milled, the cylinder is started, and then the cylinder adjusts the pressure plate 3, so that the pressure plate 3 is driven by the cylinder to contact the top of the workpiece and exert downward pressure on the workpiece to overcome the warping of the workpiece; and if there are milling particles at the bottom of the workpiece, the workpiece can flatten the milling particles under the pressure of the cylinder to ensure the milling accuracy of the workpiece. By setting the adjustment member 4 as a cylinder, the pressure that the pressure plate 3 can exert on the workpiece can be increased to further ensure the milling accuracy of the workpiece.

[0050] Implementation method 2. In this implementation method, refer to Figure 4 , Figure 5 and Figure 6The adjusting member 4 includes a connecting portion 41 provided on the pressure plate 3 and an elastic portion 42 for applying a downward elastic force to the pressure plate 3. The connecting portion 41 is slidably connected to the supporting member 2. When the pressure plate 3 contacts the workpiece, the elastic portion 42 is deformed so that the pressure plate 3 applies a downward pressure to the workpiece under the action of the elastic portion 42.

[0051] Specifically, when milling the side of the workpiece, the four-milling head body 1 moves downward first, so that the pressure plate 3 moves downward with the four-milling head body 1, and when the four-milling head body 1 is about to move to the position where the workpiece needs to be milled, the pressure plate 3 contacts the top of the workpiece, and then the four-milling head body 1 continues to move downward. At this time, the pressure plate 3 applies upward pressure to the elastic part 42, and the connecting part 41 and the support part 2 slide relative to each other, thereby causing the elastic part 42 to elastically deform and apply a downward elastic force to the pressure plate 3, so that the pressure plate 3 applies downward pressure to the workpiece until the four-milling head body 1 moves to the position where the workpiece needs to be milled, and the elastic part 42 and the connecting part 41 stop moving relative to the support part 2, thereby realizing the automatic clamping of the workpiece by the pressure plate 3. In this process, the need to connect the adjustment part 4 to a power source or other energy source is avoided, thereby reducing the use cost of the four-milling head mechanism, and at the same time reducing the production cost of the four-milling head mechanism.

[0052] The present application does not specifically limit the structures of the connecting portion 41 and the elastic portion 42. Preferably, refer to Figure 4 , Figure 5 and Figure 6 The connecting part 41 is a connecting rod provided on the pressure plate 3, and the elastic part 42 is a spring sleeved on the outside of the connecting rod. When the spring is deformed, the connecting rod can guide the deformation direction of the spring to increase the stability of the spring, thereby ensuring the elastic effect of the spring on the pressure plate 3, so as to ensure the pressing effect of the pressure plate 3 on the workpiece, and further ensure the milling accuracy of the workpiece. At the same time, it can also ensure the elastic force applied by the elastic part 42 to the pressure plate 3 to ensure the pressing effect on the workpiece.

[0053] Further, see Figure 4 , Figure 5 and Figure 6 An adjusting nut 411 is provided between the pressure plate 3 and the support member 2 . The relative position of the adjusting nut 411 and the connecting rod can be adjusted, and the end of the spring acts on the adjusting nut 411 .

[0054] When the four-milling head mechanism is milling the side of the workpiece, if the downward pressure applied by the pressure plate 3 on the workpiece is small, the adjusting nut 411 can be adjusted to change the relative position of the adjusting nut 411 and the connecting rod, so that the axial length of the spring becomes shorter, thereby increasing the elastic force applied by the spring to the pressure plate 3, thereby increasing the downward pressure applied by the pressure plate 3 on the workpiece; if the downward pressure applied by the pressure plate 3 on the workpiece is large, the adjusting nut 411 can be adjusted to lengthen the axial length of the spring to reduce the elastic force applied by the spring to the pressure plate 3, thereby reducing the downward pressure applied by the pressure plate 3 on the workpiece. By setting the adjusting nut 411, the elastic force applied by the spring to the pressure plate 3 can be adjusted to ensure the milling efficiency of the workpiece while ensuring the pressing effect on the workpiece.

[0055] Further, refer to Figure 4 , Figure 5 and Figure 6 The connecting rod is provided with a stress-bearing sheet 412, and the stress-bearing sheet 412 is located between the spring and the adjusting nut 411, so that the spring contacts the adjusting nut 411 through the stress-bearing sheet 412 to increase the contact area between the spring and the adjusting nut 411, so as to avoid a small gap between the diameter of the spring and the diameter of the adjusting nut 411, which causes the spring to expand in the diameter direction and makes the adjusting nut 411 unable to play an adjustment role, thereby increasing the stability of the spring.

[0056] The present application does not specifically limit the connection position of the adjusting nut 411, and it can adopt any one of the following implementation examples:

[0057] Implementation Example 1: In this implementation example, refer to Figure 4 and Figure 5 The adjusting nut 411 is threadedly connected to the connecting rod and is located at the bottom of the spring. When the adjusting nut 411 is adjusted, the adjusting nut 411 adjusts the bottom end of the spring to change the relative position of the bottom end of the spring and the pressure plate 3, thereby achieving the effect of facilitating the adjustment of the adjusting nut 411.

[0058] Implementation Example 2: In this implementation example, refer to Figure 6 The support member 2 is provided with a guide tube 231, the connecting rod is passed through the guide tube 231, the adjusting nut 411 is threadedly connected to the guide tube 231 and is located at the top of the spring, thereby increasing the matching area between the connecting rod and the support member 2, thereby increasing the stability of the connecting rod movement, avoiding the deflection of the connecting rod and the support member 2, so as to ensure the pressing effect of the pressure plate 3 on the workpiece.

[0059] Better, refer to Figure 6The support member 2 also includes a mounting plate 23 arranged on the side of the connecting plate 21 away from the four-milling head body 1, the connecting portion 41 is penetrated through the mounting plate 23, the guide tube 231 is fixedly connected to the bottom of the mounting plate 23, and the connecting portion 41 is provided with a blocking block 413 located at the top of the mounting plate 23, so that the blocking block 413 can cooperate with the stopper of the mounting plate 23 to increase the connection stability between the connecting portion 41 and the mounting plate 23 and avoid the connection portion 41 and the mounting plate 23 from being separated.

[0060] In other embodiments, the spring portion may also be an elastic sheet disposed at the bottom of the mounting plate 23 and acting on the pressure plate 3 .

[0061] In a preferred embodiment, referring to Figure 4 , Figure 5 and Figure 6 The pressure plate 3 is provided with a guide rod 32 slidably connected to the support member 2 , and the guide rod 32 is located on two opposite sides of the adjustment member 4 .

[0062] Specifically, the guide rod 32 is passed through the mounting plate 23 and the force-bearing plate 412, so that when the pressure plate 3 and the support member 2 slide relative to each other, the guide rod 32 moves along with the pressure plate 3, so that the guide rod 32 and the mounting plate 23 slide relative to each other, and then the sliding cooperation between the guide rod 32 and the mounting plate 23 guides the movement of the pressure plate 3, so as to increase the stability of the pressure plate 3, so as to further ensure the pressing effect of the pressure plate 3 on the workpiece.

[0063] In a preferred embodiment, referring to Figures 1 to 6 The bottom of the pressure plate 3 is provided with a contact plate 31, and both ends of the contact plate 31 are extended toward the outside of the pressure plate 3, so that the pressure plate 3 contacts the workpiece through the contact surface to increase the pressing area of ​​the workpiece, thereby further increasing the pressing effect on the workpiece. In addition, the contact plate 31 has a smooth surface that contacts the top of the workpiece to reduce the friction between the contact plate 31 and the workpiece, thereby reducing the force required to drive the workpiece to move, thereby reducing the workload of the six-sided drill, thereby reducing the energy consumption of the six-sided drill, and reducing the use cost of the six-sided drill.

[0064] Better, refer to Figures 1 to 6 The contact plate 31 is provided with an avoidance opening 311 corresponding to the milling cutter of the four milling head bodies 1 to avoid interference between the two.

[0065] It should be noted that since the six-sided drill has a driving mechanism that drives the four-milling head mechanism in the vertical direction, if the adjustment part 4 located on one peripheral side of the four-milling head body 1 interferes with the driving mechanism, a C-shaped plate can be provided on the corresponding peripheral side of the four-milling head body 1, and the corresponding adjustment part 4 is provided on the C-shaped plate, so that the driving mechanism is located in the space formed between the C-shaped plate and the four-milling head body 1, thereby avoiding interference between the adjustment part 4 and the driving mechanism.

[0066] Anything not described in this application can be achieved by adopting or drawing on existing technologies.

[0067] The various embodiments in this specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referenced to each other, and each embodiment focuses on the differences from other embodiments.

[0068] The above is only an embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims

1. A four-milling head mechanism for six-sided drilling, characterized in that: The invention comprises a four-milling head body (1), a support member (2) arranged around the four-milling head body (1) and moving with the four-milling head body (1) in the vertical direction, and a pressure plate (3) arranged on the support member (2), wherein the support member (2) is provided with an adjustment member (4) for adjusting the relative position of the pressure plate (3) and the support member (2) in the vertical direction, so that when the four-milling head body (1) moves in the vertical direction to a position for milling a workpiece, the pressure plate (3) contacts the top of the workpiece under the adjustment action of the adjustment member (4) and applies downward pressure to the workpiece.

2. A four-milling head mechanism for six-sided drilling according to claim 1, characterized in that: The adjusting member (4) is a cylinder, the cylinder body of the cylinder is connected to the supporting member (2), and the piston rod of the cylinder is connected to the pressure plate (3).

3. The four-milling head mechanism for six-sided drilling according to claim 1, characterized in that: The adjusting member (4) comprises a connecting portion (41) arranged on the pressure plate (3) and an elastic portion (42) for applying a downward elastic force to the pressure plate (3); the connecting portion (41) is slidably connected to the supporting member (2); when the pressure plate (3) contacts the workpiece, the elastic portion (42) is deformed so that the pressure plate (3) applies a downward pressure to the workpiece under the action of the elastic portion (42).

4. A four-milling head mechanism for six-sided drilling according to claim 3, characterized in that: The connecting portion (41) is a connecting rod arranged on the pressure plate (3), and the elastic portion (42) is a spring sleeved on the outside of the connecting rod.

5. The four-milling head mechanism for six-sided drilling according to claim 4, characterized in that: An adjusting nut (411) is provided between the pressure plate (3) and the support member (2); the relative position of the adjusting nut (411) and the connecting rod can be adjusted, and the end of the spring acts on the adjusting nut (411).

6. A four-milling head mechanism for six-sided drilling according to claim 5, characterized in that: The connecting rod is provided with a stress-bearing sheet (412), and the stress-bearing sheet (412) is located between the spring and the adjusting nut (411).

7. The four-milling head mechanism for six-sided drilling according to claim 5, characterized in that: The adjusting nut (411) is threadedly connected to the connecting rod and is located at the bottom of the spring.

8. The four-milling head mechanism for six-sided drilling according to claim 5, characterized in that: The support member (2) is provided with a guide tube (231), the connecting rod is passed through the guide tube (231), and the adjusting nut (411) is threadedly connected to the guide tube (231) and is located at the top of the spring.

9. The four-milling head mechanism for six-sided drilling according to claim 1, characterized in that: The pressure plate (3) is provided with a guide rod (32) slidably connected to the support member (2), and the guide rod (32) is located on two opposite sides of the adjustment member (4).

10. The four-milling head mechanism for six-sided drilling according to claim 1, characterized in that: A contact plate (31) is provided at the bottom of the pressure plate (3), and the contact plate (31) has a smooth surface that contacts the top of the workpiece.

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