A bench drill for machining mechanical parts

Abstract

The utility model relates to mechanical parts processing technical field, the utility model provides a desk drill for mechanical parts processing, a desk drill for mechanical parts processing, including base, the top of base is fixedly connected with upper fixed frame through the connecting column, drilling protection structure, drilling protection structure is located below upper fixed frame, drilling protection structure includes elevating system and protection component, adjustment structure, adjustment structure is located at the top of base, adjustment structure includes fixed assembly and support component, the utility model provides a desk drill for mechanical parts processing, forms the protection structure of free elevating through elevating system and protection component cooperation uses, can separate the drilling environment and external environment when drilling, solves the technical problem that the safety threat that the operator causes because of the high -speed rotation of drill bit in prior art will lead to the chip to be fragment or spiral and fly.

Description

Technical Field

[0001] This utility model relates to the field of mechanical parts processing technology, specifically to a bench drill for processing mechanical parts. Background Technology

[0002] Mechanical parts processing is the manufacturing process of transforming raw materials (metals, plastics, composite materials, etc.) into parts or components that meet design requirements through a series of technological means. Drilling equipment is often used to drill holes in mechanical parts during the processing.

[0003] A bench drill for machining mechanical parts, with publication number CN 213053759 U, includes a machine tool, a mounting frame, a motor, a worktable, and a solution tank. A hydraulic lifting device is located on the top left side of the machine tool. A connecting frame is located at the top output end of the hydraulic lifting device. The mounting frame is mounted on the connecting frame. The motor is mounted on the mounting frame, and a drill bit is located at the bottom output end of the motor. Multiple sets of support rods are located at the bottom of the worktable, and the bottom ends of these support rods are connected to the top of the machine tool. A drilling hole is provided on the worktable. Multiple sets of fixing devices are located at the left and right ends of the worktable. The top of the solution tank is connected to the bottom of the connecting frame. An inlet pipe is connected to the upper left side of the solution tank, and a pipe cap is screwed onto the inlet pipe. An outlet pipe is connected to the bottom output end of the solution tank, and a control valve is installed on the outlet pipe.

[0004] However, the aforementioned device has certain shortcomings in its use. The metal chips generated during the drilling process are extremely hot, and the high-speed rotation of the drill bit causes the chips to fly in fragments or spirals. These hot chips can cause burns to the operator's skin, get into the eyes, or ignite flammable materials, posing a safety hazard. In addition, due to the different drilling angles of the workpiece, the tilt angle of the mechanical parts needs to be adjusted multiple times during the drilling process. The conventional operation method is for the operator to adjust these manually. However, because the chips generated during the drilling process adhere to the surface of the mechanical parts, the parts become very hot, and manual adjustment can easily burn the operator's hands. Moreover, manual adjustment mainly relies on visual alignment with the dial or markings, which has low precision and leads to certain errors in the mechanical parts. Utility Model Content

[0005] To overcome the aforementioned defects, embodiments of this utility model provide a bench drill for machining mechanical parts, solving the technical problem that in the prior art, the metal chips generated during the drilling process are extremely hot, and the high-speed rotation of the drill bit causes the chips to fly in fragments or spirals. These hot chips may cause burns to the operator's skin, get into the eyes, or ignite flammable materials, posing a safety hazard to the operator.

[0006] According to one aspect, at least one embodiment of the present invention provides a bench drill for machining mechanical parts, comprising: The base has an upper fixed frame fixedly connected to its top via a connecting column. The bottom of the upper fixed frame is fixedly connected to the base via a limiting rod. A return spring is provided on the outside of the limiting rod. A support plate is fixedly connected to the top of the return spring. The support plate and the limiting rod are slidably connected. The bottom of the return spring is fixedly connected to the base. A damping rod is provided inside the return spring. A drilling protection structure is located below the upper fixed frame. The drilling protection structure includes a lifting component and a protective component. The lifting component is used to smoothly lift and lower the protective component, and the protective component is used to isolate the internal environment and prevent waste chips from splashing. An adjustment structure is located at the top of the base. The adjustment structure includes a fixing component and a support component. The fixing component is used to securely clamp and automatically flip the parts, and the support component is used to provide support for the bottom of the parts.

[0007] For example, in at least one embodiment of the present invention, a bench drill for machining mechanical parts is provided, which further includes: the lifting assembly includes a first motor fixedly installed on the top of the upper fixed frame, the power shaft of the first motor passing through the upper fixed frame and fixedly connected to a first drive gear rod through a bearing, the rod body of the first drive gear rod being rotatably connected to the upper fixed frame, a rotating connecting member being rotatably connected inside the upper fixed frame, a first gear part being provided on the bottom outer side of the rotating connecting member, the first gear part being meshed with the first drive gear rod, and a lifting screw being threadedly connected to the center of the rotating connecting member.

[0008] For example, in at least one embodiment of the present invention, a bench drill for machining mechanical parts is provided, which further includes: the protective assembly includes a protective cover fixedly connected to the bottom of the lifting screw, a slot is provided on the top of the base corresponding to the position of the protective cover, two limiting parts and two supporting parts are symmetrically arranged on both sides of the protective cover, the two limiting parts and the two supporting parts are slidably connected to the limiting rod, and the bottom of the two supporting parts abuts against the support plate at the top of the return spring.

[0009] For example, in at least one embodiment of the present invention, a bench drill for machining mechanical parts is provided, which further includes: a hydraulic piston cylinder fixedly connected to the center of the inner wall of the protective cover, a drill fixedly connected to the movable end of the bottom of the hydraulic piston cylinder, the drill and the protective cover being concentric and coaxial, and a drill bit fixedly connected to the drive shaft of the drill through a bearing.

[0010] For example, in at least one embodiment of the present invention, a bench drill for machining mechanical parts is provided, which further includes: a moving groove symmetrically opened on the top of the base; a fixing component including a bidirectional motor fixedly installed inside the base; a tapered drive rod fixedly connected to the bottom of the bidirectional motor via a bearing; two adjusting screws symmetrically arranged inside the base; a tapered gear part on one side of the adjusting screw meshing with the tapered drive rod; and the other side of the adjusting screw rotatably connected to the inside of the base.

[0011] For example, in at least one embodiment of the present invention, a bench drill for machining mechanical parts further includes: a first movable seat and a second movable seat are respectively threaded to the outside of the two adjusting screws; the first movable seat and the second movable seat slide in two movable slots respectively; a first clamping member and a second clamping member are respectively rotatably connected to the sides of the first movable seat and the second movable seat; a second gear portion is provided on the outside of the first clamping member; anti-slip textures are provided on the corresponding sides of the first clamping member and the second clamping member; and the component body is clamped between the first clamping member and the second clamping member.

[0012] For example, in at least one embodiment of the present invention, a bench drill for machining mechanical parts is provided, which further includes: a second motor fixedly mounted on the side of the first movable seat, the power shaft of the second motor passing through the first movable seat and fixedly connected to a second drive gear rod through a bearing, and the second drive gear rod and the second gear part meshing with each other.

[0013] For example, in at least one embodiment of the present invention, a bench drill for machining mechanical parts is provided, which further includes: the support assembly includes a lifting screw fixedly connected to the power shaft at the top of the bidirectional motor, the lifting screw is externally threaded with a lifting sleeve, and a limit block is fixedly connected to the top of the lifting screw, the limit block sliding inside the lifting sleeve.

[0014] For example, in at least one embodiment of the present invention, a bench drill for machining mechanical parts is provided, which further includes: a support seat hinged to the top of the lifting sleeve, and a drilling clearance groove provided on the top of the support seat, wherein the drilling clearance groove and the drill bit are concentric and coaxial.

[0015] For example, in at least one embodiment of the present invention, a bench drill for machining mechanical parts is provided, which further includes: a guide seat is provided on the top of the base, a storage groove is provided on the top of the guide seat, and the storage groove is slidably connected to the outside of the lifting sleeve.

[0016] The beneficial effects of the embodiments of this utility model are as follows: (1) In this utility model, the lifting component and the protective component are used together to form a protective structure that can be raised and lowered freely, which can separate the drilling environment from the external environment. Since the protective cover is a transparent protective cover, the protective cover can prevent the flying of waste chips during drilling. The operator can also observe the drilling process through the protective cover. During operation, the lifting component drives the protective cover to move downward. The protective cover moves down until it is inserted into the slot at the bottom, achieving the isolation effect. The reset spring set outside the limit rod can buffer the protective cover and ensure that the protective cover can move down smoothly. At the same time, when the protective cover moves up, the reset spring can provide upward support for the protective cover, driving the protective cover to move upward smoothly along the limit rod, enhancing the ease of use.

[0017] (2) In this utility model, the fixed component and the support component are used together to limit and fix the part body. At the same time, the part body can be automatically flipped during the processing, which enhances its practicality. When working, the first moving seat and the second moving seat on both sides move to the middle position. The first clamping component and the second clamping component clamp the two sides of the part body. The first clamping component and the second clamping component are provided with anti-slip texture on the opposite side, which can increase the friction between them and the part body and ensure a stable clamping effect. The support component supports the bottom of the part body to prevent deviation during the drilling process. When it is necessary to adjust the deflection angle of the part body, the support component is moved down to leave room for the part body to flip. Then the second motor drives the second gear part to rotate through the second drive gear rod to rotate the part body. Then the support component is moved up to make it abut against the bottom of the part body to ensure that the drilling process can proceed normally. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this utility model and these drawings without any creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic cross-sectional view of the present invention; Figure 3 This is a schematic diagram of the drilling protection structure of this utility model; Figure 4 This is a schematic diagram of the adjustment structure of this utility model; Figure 5 For the present utility model Figure 4A magnified view of a portion of the image; In the diagram: 1. Base; 2. Connecting column; 3. Upper fixing frame; 4. Limiting rod; 5. Lifting assembly; 6. Protective assembly; 7. Return spring; 8. Slot; 9. Fixing assembly; 10. Support assembly; 11. Component body; 12. Moving slot; 13. Guide seat; 501. First motor; 502. First drive gear rod; 503. Rotating connector; 504. First gear section; 505. Lifting screw; 601. Protective cover; 602. Hydraulic piston cylinder; 603. Drilling rig; 60 4. Drill bit; 605. Limiting part; 606. Support part; 901. First moving seat; 902. Second moving seat; 903. First clamping member; 904. Second clamping member; 905. Second motor; 906. Second drive gear rod; 907. Second gear part; 908. Bidirectional motor; 909. Conical drive rod; 910. Adjusting screw; 1001. Lifting screw; 1002. Limiting block; 1003. Lifting sleeve; 1004. Support seat; 1005. Drilling clearance groove. Detailed Implementation

[0020] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit its scope.

[0021] To keep the drawings concise, only the parts relevant to the utility model are shown schematically in each drawing; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of the components with the same structure or function is schematically shown, or only one is labeled. In this document, "a" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0022] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0024] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0025] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0026] like Figures 1-3 As shown, it illustrates a bench drill for machining mechanical parts according to one embodiment of the present invention, comprising: The base 1 has an upper fixed frame 3 fixedly connected to its top via a connecting column 2. The bottom of the upper fixed frame 3 is fixedly connected to the base 1 via a limiting rod 4. A return spring 7 is provided on the outside of the limiting rod 4. A support plate is fixedly connected to the top of the return spring 7. The support plate and the limiting rod 4 are slidably connected. The bottom of the return spring 7 is fixedly connected to the base 1. A damping rod is provided inside the return spring 7. During the downward movement of the protective cover 601, the limiting part 605 will gradually abut against the top of the return spring 7, which can ensure that the protective cover 601 moves stably before being inserted into the slot 8, and can buffer and support the rapid downward movement of the protective cover 601, preventing the protective cover 601 from being damaged by impact with the base 1, thus protecting the protective cover 601 and increasing its service life. The drilling protection structure is located below the upper fixed frame 3. The drilling protection structure includes a lifting component 5 and a protective component 6. The lifting component 5 is used to smoothly lift and lower the protective component 6, and the protective component 6 is used to isolate the internal environment and prevent waste chips from splashing. The lifting assembly 5 includes a first motor 501 fixedly installed on the top of the upper fixed frame 3. The power shaft of the first motor 501 passes through the upper fixed frame 3 and is fixedly connected to a first drive gear rod 502 through a bearing. The rod body of the first drive gear rod 502 is rotatably connected to the upper fixed frame 3. A rotating connector 503 is rotatably connected inside the upper fixed frame 3. A first gear part 504 is provided on the bottom outer side of the rotating connector 503. The first gear part 504 and the first drive gear rod 502 are meshed and connected. A lifting screw 505 is threadedly connected to the center of the rotating connector 503. The lifting assembly 5 can precisely control the lifting of the protective assembly 6, so that the protective assembly 6 can be freely lifted and lowered along the limit rod 4, so that the protective cover 601 can quickly isolate during drilling, reduce operation time, and improve operation convenience. The protective component 6 includes a protective cover 601 fixedly connected to the bottom of the lifting screw 505. The top of the base 1 is provided with a slot 8 corresponding to the position of the protective cover 601. Two limiting parts 605 and two supporting parts 606 are symmetrically arranged on both sides of the protective cover 601. The two limiting parts 605 and the two supporting parts 606 are slidably connected to the limiting rod 4. The bottom of the two supporting parts 606 abuts against the support plate at the top of the return spring 7. The setting of the limiting parts 605 and the return spring 7 can limit the movement direction of the protective cover 601, ensure that the protective cover 601 can move stably, and reduce the occurrence of deviation or sliding obstruction. A hydraulic piston cylinder 602 is fixedly connected to the center of the inner wall of the protective cover 601. A drilling machine 603 is fixedly connected to the movable end of the bottom of the hydraulic piston cylinder 602. The drilling machine 603 and the protective cover 601 are concentric and coaxial. The drive shaft of the drilling machine 603 is fixedly connected to the drill bit 604 through a bearing. The drilling structure is set inside the protective cover 601, which can ensure that the protective cover 601 and the drilling equipment move simultaneously. The drilling equipment is controlled to move up and down by the hydraulic piston cylinder 602, which ensures the accuracy of the drilling process and avoids insufficient drilling.

[0027] In this embodiment, the lifting component 5 and the protective component 6 work together to achieve both protection and drilling effects. The lifting component 5 allows for adjustment of the distance between the protective component 6 and the part to be drilled, enabling the protective component 6 to be raised and lowered freely. This allows the protective cover 601 to quickly isolate the drilled part, reducing operation time and solving the technical problem of bench drills that may cause burns to the operator's skin, get into the eyes, or cause flammable materials to ignite, thus posing a safety hazard to the operator. This improves the safety of the device.

[0028] During the drilling process, the first motor 501 is first controlled to operate, driving the first drive gear rod 502 to rotate. Since the first drive gear rod 502 and the first gear part 504 are meshed, the rotation of the first drive gear rod 502 will drive the rotating connecting part 503 to rotate, thereby driving the lifting screw 505 to move up and down. After the component body 11 is clamped and fixed by the adjustment structure, the protective cover 601 is controlled to move downward along the limit rod 4 by the lifting assembly 5. During the downward movement, the limit part 605 will gradually abut against the top of the return spring 7, ensuring that the protective cover 601 always remains stable. The hydraulic cylinder 602 can be extended to control the drilling machine 603 and the drill bit 604 to move downwards for drilling. When the component body 11 is thick, the hydraulic piston cylinder 602 can be extended to control the drilling machine 603 and the drill bit 604 to move downwards for drilling. During this process, since the protective cover 601 is set as a transparent protective cover, it can prevent waste chips from flying during drilling and also make it easy for operators to check the drilling situation, which greatly improves the convenience of operation.

[0029] like Figures 2-5 As shown, it illustrates an adjustment structure in another embodiment of the present invention. The adjustment structure is located on the top of the base 1 and includes a fixing component 9 and a support component 10. The fixing component 9 is used to securely clamp and automatically flip the parts, and the support component 10 is used to provide support for the bottom of the parts.

[0030] The top of the base 1 is symmetrically provided with moving slots 12. The fixing component 9 includes a bidirectional motor 908 fixedly installed inside the base 1. The power shaft at the bottom of the bidirectional motor 908 is fixedly connected to a conical drive rod 909 through a bearing. Two adjusting screws 910 are symmetrically arranged inside the base 1. The conical gear part on one side of the adjusting screw 910 is meshed with the conical drive rod 909, and the other side of the adjusting screw 910 is rotatably connected to the inside of the base 1. This structure can improve the transmission efficiency by mechanically linking the two adjusting screws 910 through the bidirectional motor 908. Two adjusting screws 910 are threadedly connected to a first movable seat 901 and a second movable seat 902, respectively. The first movable seat 901 and the second movable seat 902 slide within two movable slots 12. A first clamping member 903 and a second clamping member 904 are rotatably connected to the sides of the first movable seat 901 and the second movable seat 902, respectively. A second gear portion 907 is provided on the outside of the first clamping member 903. Anti-slip textures are provided on corresponding sides of the first clamping member 903 and the second clamping member 904. The component body 11 is clamped between the two parts. The first moving seat 901 and the second moving seat 902 move towards the middle by adjusting the lead screw 910, and achieve stable clamping through the first clamping member 903 and the second clamping member 904. Compared with the traditional clamping method of manual adjustment, it is more efficient and the clamping force can be precisely controlled, thereby reducing the damage to the component body 11 caused by excessive clamping force. The first clamping member 903 and the second clamping member 904 are L-shaped and their sides are provided with anti-slip texture, which can achieve stable clamping by increasing friction. A second motor 905 is fixedly mounted on the side of one of the first moving seats 901. The power shaft of the second motor 905 passes through the first moving seat 901 and is fixedly connected to a second drive gear rod 906 through a bearing. The second drive gear rod 906 and the second gear part 907 are meshed together. In this structure, the deflection angle can be adjusted by the second motor 905, the second drive gear rod 906 and the second gear part 907, which can accurately control the deflection angle and improve the machining accuracy. The support assembly 10 includes a lifting screw 1001 fixedly connected to the power shaft at the top of the bidirectional motor 908. The lifting screw 1001 is externally threaded with a lifting sleeve 1003. A limit block 1002 is fixedly connected to the top of the lifting screw 1001. The limit block 1002 slides within the lifting sleeve 1003. This assembly can support the component body 11 and provide an upward support force to the component body 11, thereby decomposing the compressive stress generated during the drilling process. The top of the lifting sleeve 1003 is hinged to a support base 1004. The top of the support base 1004 is provided with a drilling clearance groove 1005. The drilling clearance groove 1005 and the drill bit 604 are concentric and coaxial. When a through groove needs to be opened at the drilling location, the drill bit 604 is prone to collide with the support base 1004, which can damage the drill bit 604. The drilling clearance groove 1005 can provide clearance space to prevent the drill bit 604 from directly colliding with the support base 1004 and causing damage. The top of the base 1 is provided with a guide seat 13, and the top of the guide seat 13 is provided with a storage groove. The storage groove is slidably connected to the outside of the lifting sleeve 1003. This structure allows the lifting sleeve 1003 to be stored downwards, providing clearance for flipping and improving practicality.

[0031] In this embodiment, by adjusting the cooperation between the fixing component 9 and the support component 10 in the structure, the component body 11 is fixed and limited. At the same time, the component body 11 can be automatically flipped during the drilling process, which enhances its practicality. The fixing component 9 drives the first moving seat 901 and the second moving seat 902 to the middle position through the bidirectional motor 908 and the adjusting screw 910, which realizes the stable clamping of the component. At the same time, the support component 10 supports the bottom of the component, which can decompose the stress generated by drilling. In addition, the support component 10 provides clearance space when flipping the component body 11.

[0032] During operation, the bidirectional motor 908 is first driven to rotate the conical drive rod 909, which in turn rotates the adjusting screws 910 on both sides. This, in turn, moves the first moving seats 901 and the second moving seats 902 on both sides toward the center, thereby stably clamping the component body 11 through the first clamping member 903 and the second clamping member 904. The first clamping member 903 and the second clamping member 904 are L-shaped and have anti-slip textures on their inner sides, which can stably limit the position of the component body 11. The simultaneous movement of the first moving seats 901 and the second moving seats 902 on both sides ensures that the force on both sides of the component body 11 is uniform. Then, the bidirectional motor 908 controls the lifting screw 1001 to rotate, which drives the lifting sleeve 1003 to move upward, thereby ensuring that the support seat 1004 can fit against the bottom of the component body 11 and apply an upward supporting force to the component body 11, thereby decomposing the stress generated by drilling.

[0033] When a flipping or moving angle is required, the bidirectional motor 908 controls the lifting screw 1001 to rotate, causing the lifting sleeve 1003 to move downward into the storage groove in the guide seat 13, providing clearance space for the flipping of the component body 11. Then, the second motor 905 is driven to work. The second motor 905 drives the second drive gear rod 906 to rotate, which in turn drives the second gear part 907 and the first clamping member 903 to rotate, thereby realizing the flipping process. Afterward, the same operation is repeated to control the lifting sleeve 1003 and the support seat 1004 to move upward until the support seat 1004 and the bottom of the component body 11 are in contact. Since the connection between the support seat 1004 and the lifting sleeve 1003 is hinged, the support seat 1004 can rotate freely with the deflection angle of the component body 11.

[0034] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A bench drill for machining mechanical parts, characterized in that, include: The base (1) has an upper fixed frame (3) fixedly connected to the top of the base (1) via a connecting column (2). The bottom of the upper fixed frame (3) is fixedly connected to the base (1) via a limiting rod (4). A reset spring (7) is provided on the outside of the limiting rod (4). A support plate is fixedly connected to the top of the reset spring (7). The support plate and the limiting rod (4) are slidably connected. The bottom of the reset spring (7) is fixedly connected to the base (1). A damping rod is provided inside the reset spring (7). A drilling protection structure is located below the upper fixed frame (3). The drilling protection structure includes a lifting component (5) and a protective component (6). The lifting component (5) is used to smoothly lift the protective component (6), and the protective component (6) is used to isolate the internal environment and prevent waste from splashing. The adjustment structure is located on top of the base (1). The adjustment structure includes a fixing component (9) and a support component (10). The fixing component (9) is used to securely clamp and automatically flip the parts, and the support component (10) is used to provide support for the bottom of the parts.

2. A bench drill for machining mechanical parts according to claim 1, characterized in that, The lifting assembly (5) includes a first motor (501) fixedly installed on the top of the upper fixed frame (3). The power shaft of the first motor (501) passes through the upper fixed frame (3) and is fixedly connected to a first drive gear rod (502) through a bearing. The rod body of the first drive gear rod (502) is rotatably connected to the upper fixed frame (3). A rotating connector (503) is rotatably connected inside the upper fixed frame (3). A first gear part (504) is provided on the bottom outer side of the rotating connector (503). The first gear part (504) and the first drive gear rod (502) are meshed and connected. A lifting screw (505) is threadedly connected to the center of the rotating connector (503).

3. A bench drill for machining mechanical parts according to claim 1, characterized in that, The protective component (6) includes a protective cover (601) fixedly connected to the bottom of the lifting screw (505). The top of the base (1) is provided with a slot (8) corresponding to the position of the protective cover (601). Two limiting parts (605) and two supporting parts (606) are symmetrically arranged on both sides of the protective cover (601). The two limiting parts (605) and the two supporting parts (606) are slidably connected to the limiting rod (4). The bottom of the two supporting parts (606) abuts against the support plate at the top of the return spring (7).

4. A bench drill for machining mechanical parts according to claim 3, characterized in that, A hydraulic piston cylinder (602) is fixedly connected to the center of the inner wall of the protective cover (601). A drilling machine (603) is fixedly connected to the movable end of the bottom of the hydraulic piston cylinder (602). The drilling machine (603) and the protective cover (601) are concentric and coaxial. The drive shaft of the drilling machine (603) is fixedly connected to a drill bit (604) through a bearing.

5. A bench drill for machining mechanical parts according to claim 1, characterized in that, The top of the base (1) is symmetrically provided with a moving groove (12). The fixing component (9) includes a bidirectional motor (908) fixedly installed inside the base (1). The power shaft at the bottom of the bidirectional motor (908) is fixedly connected to a conical drive rod (909) through a bearing. The base (1) is symmetrically provided with two adjusting screws (910). The conical gear part on one side of the adjusting screw (910) is meshed with the conical drive rod (909), and the other side of the adjusting screw (910) is rotatably connected to the inside of the base (1).

6. A bench drill for machining mechanical parts according to claim 5, characterized in that, The two adjusting screws (910) are respectively threaded to the outside of a first moving seat (901) and a second moving seat (902). The first moving seat (901) and the second moving seat (902) slide in two moving grooves (12). The sides of the first moving seat (901) and the second moving seat (902) are respectively rotatably connected to a first clamping member (903) and a second clamping member (904). The outside of the first clamping member (903) is provided with a second gear part (907). Anti-slip textures are provided on the corresponding side of the first clamping member (903) and the second clamping member (904). The component body (11) is clamped between the first clamping member (903) and the second clamping member (904).

7. A bench drill for machining mechanical parts according to claim 6, characterized in that, A second motor (905) is fixedly mounted on the side of one of the first movable seats (901). The power shaft of the second motor (905) passes through the first movable seat (901) and is fixedly connected to a second drive gear rod (906) through a bearing. The second drive gear rod (906) and the second gear part (907) are meshed together.

8. A bench drill for machining mechanical parts according to claim 1, characterized in that, The support assembly (10) includes a lifting screw (1001) fixedly connected to the power shaft at the top of the bidirectional motor (908). The lifting screw (1001) is externally threaded with a lifting sleeve (1003). A limit block (1002) is fixedly connected to the top of the lifting screw (1001). The limit block (1002) slides within the lifting sleeve (1003).

9. A bench drill for machining mechanical parts according to claim 8, characterized in that, The top of the lifting sleeve (1003) is hinged to a support base (1004), and the top of the support base (1004) is provided with a drilling clearance groove (1005). The drilling clearance groove (1005) and the drill bit (604) are concentric and coaxial.

10. A bench drill for machining mechanical parts according to claim 1, characterized in that, The base (1) is provided with a guide seat (13) on its top. The guide seat (13) has a storage groove on its top. The storage groove is slidably connected to the outside of the lifting sleeve (1003).

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