A double-head coaxial boring and milling device for machining

Abstract

The present invention discloses a double-headed coaxial boring and milling device for mechanical processing, which relates to the technical field of mechanical processing and solves the problem that the existing machine tools can only drill one end of a shaft part at a time, and the parts need to be re-clamped before drilling the other end, the steps are cumbersome, and the hole positions at both ends of the parts are easily deviated, which affects the production accuracy of the parts. A double-headed coaxial boring and milling device for mechanical processing includes a coaxial processing mechanism; the coaxial processing mechanism is provided with two groups. When the device performs drilling processing on both ends of a shaft part, the drill bits of two drill clamps can be coaxially driven to rotate by a transmission shaft, and the two coaxial processing mechanisms can move independently, so that the operation of drilling holes on both ends of the shaft part can be completed at the same time, forming in one time, without the need to re-clamp the parts, accurate drilling positioning, convenient and flexible operation, high processing efficiency, and improving the practicality and flexibility of the device.

Description

Technical Field

[0001] The invention belongs to the technical field of mechanical processing, and more specifically, particularly relates to a double-head coaxial boring and milling processing device for mechanical processing. Background Art

[0002] Mechanical processing refers to the process of changing the size or performance of a workpiece through a mechanical device. According to the difference in processing methods, it can be divided into cutting processing and pressure processing. The most commonly used equipment in mechanical processing is the machine tool. The machine tool refers to the machine that manufactures the machine, also known as the working machine or the tool machine, and is usually referred to as the machine tool. Generally, it is divided into metal boring and milling machine tools, cutting machine tools, forging machine tools, and woodworking machine tools. All parts with high precision requirements and fine surface roughness requirements generally need to be processed on machine tools.

[0003] For example, in the patent with application number: CN201610765693.2, a mechanical processing device is disclosed, including a base, a work box is fixedly installed on the top of the base, a drilling processing unit is installed on the inner top of the work box, a conveying device is installed at the center of the upper surface of the base, a ramp card is installed on the upper surface of the belt, an infrared sensor transmitter is installed on the left side of the front of the ramp card, and an infrared sensor receiver is installed on the left side of the inner wall of the work box. The mechanical processing device, through the cooperation of the conveying device, the infrared sensor receiver and the infrared sensor transmitter, enables the conveying device to work and continuously move the workpiece at the material loading table into the work box. When the infrared sensor receiver receives the signal from the infrared sensor transmitter, the first servo motor stops rotating, and the drilling processing unit drills the workpiece, thereby improving the accuracy of the hole and meeting the processing requirements of the workpiece.

[0004] When existing machine tools drill or process both ends of shaft parts, since the machine tools can only drill one end of the shaft parts at a time, after drilling one end of the part is completed, the part needs to be re-clamped to drill the other end. The steps are cumbersome, and the part is prone to eccentricity when re-clamping, resulting in deviation of the hole positions at both ends of the part, affecting the production accuracy of the part, and the practicality is not high.

[0005] Therefore, in view of this, the existing structure and defects are studied and improved, and a double-head coaxial boring and milling processing device for mechanical processing is provided, in order to achieve a more practical purpose. Summary of the invention

[0006] In order to solve the above technical problems, the present invention provides a double-head coaxial boring and milling processing device for mechanical processing, so as to solve the problem that when the existing machine tool drills or processes at both ends of the shaft parts, the machine tool can only drill one end of the shaft part at a time. After the drilling of one end of the part is completed, the part needs to be re-clamped to drill the other end. The steps are cumbersome, and the part is prone to eccentricity when re-clamping, resulting in deviation of the hole positions at both ends of the part, affecting the production accuracy of the part and the problem of low practicality.

[0007] The purpose and effect of the double-head coaxial boring and milling device for mechanical processing of the present invention are achieved by the following specific technical means:

[0008] A double-head coaxial boring and milling device for mechanical processing, comprising a machine base, a coaxial processing mechanism, a coaxial drill rod, a drill bit fixture, a three-axis centering chuck, a driving motor, a transmission shaft, a linkage rod and a position control rod; the left and right sides of the machine base are respectively fixed with supporting side plates by screwing; the coaxial processing mechanism is provided with two groups, and the coaxial processing mechanism is symmetrically installed inside the machine base; the coaxial processing mechanism is composed of a movable shell, a composite transmission wheel and a positioning sleeve; the movable shell is plugged into the top surface of the machine base; the composite transmission wheel is rotatably connected to the outside of the positioning sleeve; the positioning sleeve is plugged into the inside of the movable shell; the coaxial drill rod is rotatably connected to the top of the movable shell; the drill bit fixture is fixedly connected to one end of the rod body of the coaxial drill rod; the three-axis centering chuck is fixed to the The top of the chuck mounting seat in the middle of the machine base; the driving motor is fixed to the side of the right supporting side plate by screwing; the two ends of the transmission shaft are rotatably connected to the inside of the left and right supporting side plates respectively; one end of the shaft body of the transmission shaft is fixedly connected to a driven gear, and the rotating rod of the driving motor is fixedly connected to a driving gear; the driven gear and the driving gear are rotatably connected with the gear teeth of the driving gear; one end of the linkage rod is rotatably connected to the side of the machine base chuck mounting seat, and the other end of the linkage rod is rotatably connected to the inside of the supporting side plate on the corresponding side; one end of the linkage rod and the inner end of the rod body of the position control rod are fixedly connected with a bevel gear, and the bevel gears of the linkage rod and the position control rod are rotatably connected to each other; the linkage rod passes through the interior of the movable shell; the position control rod is rotatably connected to the inside of the machine base chuck mounting seat.

[0009] Furthermore, the shaft body of the transmission shaft is provided with a transmission rack, and the transmission rack is designed to be through-length on the shaft body of the transmission shaft. A coaxial gear is provided on the outer side of the composite transmission wheel, and the gear teeth of the coaxial gear are meshed and transmittedly connected with the transmission rack of the transmission shaft.

[0010] Furthermore, a transmission sprocket is provided on the inner side of the composite transmission wheel and on one end of the coaxial drill rod located inside the movable housing, and the two transmission sprockets are connected by a transmission chain.

[0011] Furthermore, the cross-sectional shape of the positioning sleeve is an "I"-shaped design, and track holes are provided on both sides of the interior of the positioning sleeve, two track rods are provided on the inner side of the supporting side plate, and the track rods pass through the interior of the movable housing and are inserted into the interior of the track holes.

[0012] Furthermore, a threaded hole is provided in the middle of the positioning sleeve, a rod body of the linkage rod is provided with threads, and the linkage rod is screwed into the threaded hole of the positioning sleeve through the rod body threads.

[0013] Furthermore, a positioning block is provided at the bottom of the mobile housing, and the positioning block is designed in a "T" shape, and a positioning groove is provided at the top of the base, and the positioning block is inserted into the inside of the positioning groove.

[0014] Furthermore, the clamping center of the three-axis centering chuck and the clamping centers of the two drill bit fixtures are located on the same straight line.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] When the device is drilling holes on both ends of shaft parts, the drill bits of the two drill clamps can be coaxially driven to rotate through the transmission shaft, and the two coaxial processing mechanisms can move independently, so that the drilling operations on both ends of the shaft parts can be completed at the same time, forming in one step without re-clamping the parts, accurate drilling positioning, convenient and flexible operation, high processing efficiency, and improving the practicability and flexibility of the device.

[0017] Firstly, when the driving motor rotates, the driving gear of the driving motor can drive the transmission shaft to rotate through the driven gear, and the transmission rack of the transmission shaft can synchronously drive the composite transmission wheels of the two coaxial processing mechanisms to rotate through the coaxial gear, so that the transmission sprocket of the composite transmission wheel synchronously drives the coaxial drill rod to rotate, and the drill bit clamped by the drill bit clamp is used to drill the parts, and a single driving motor is used to coaxially drive the two coaxial processing mechanisms, which saves costs, facilitates maintenance, and improves the practicability of the device.

[0018] Secondly, when the position control lever is rotated, the position control lever can drive the linkage lever to rotate through the bevel gear, so that the linkage lever drives the movable shell to move horizontally through the rod body thread to change the position of the drill clamp holding the drill bit. The two coaxial processing mechanisms can move independently under the action of the two position control levers without interfering with each other, and can adapt to the requirements of drilling depth under different situations. The clamping center of the three-axis centering chuck and the clamping center of the drill clamp are located on the same straight line, which can stably position and drill holes at both ends of shaft parts without the phenomenon of hole deviation on both sides of the parts. The processing accuracy is more accurate, which improves the adaptability and flexibility of the device.

[0019] Furthermore, the two track rods can fix the angle of the positioning sleeve, so that when the linkage rod rotates, the positioning sleeve will not rotate synchronously with the linkage rod under the positioning action of the track rod, thereby being able to stably adjust the lateral position of the coaxial processing mechanism without the occurrence of transmission failure, and the positioning groove can limit the moving trajectory of the movable shell through the positioning block, so that the movable shell will not be skewed or twisted when moving, causing the two drill fixtures and the three-axis centering chuck to deviate from the clamping center, so that the device can stably and accurately perform drilling processing on both ends of shaft parts, thereby improving the stability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the present invention.

[0021] Figure 2 It is a schematic diagram of the internal structure of the present invention.

[0022] Figure 3 It is a schematic diagram of the structure of the composite transmission wheel and the positioning sleeve after being disassembled.

[0023] Figure 4 It is a structural schematic diagram of the transmission shaft of the present invention.

[0024] Figure 5 It is a structural schematic diagram of the mobile housing of the present invention.

[0025] Figure 6 The present invention Figure 2 Schematic diagram of the enlarged structure of part A in the middle.

[0026] In the figure, the corresponding relationship between the component names and the figure numbers is as follows:

[0027] 1. Machine base; 2. Support side plate; 3. Coaxial processing mechanism; 4. Coaxial drill rod; 5. Drill fixture; 6. Three-axis centering chuck; 7. Driving motor; 8. Transmission shaft; 9. Linkage rod; 10. Position control rod; 101. Positioning groove; 201. Track rod; 301. Moving housing; 302. Compound transmission wheel; 303. Positioning sleeve; 3011. Positioning block; 3021. Coaxial gear; 3022. Transmission sprocket; 3031. Track hole; 701. Driving gear; 801. Driven gear; 802. Transmission rack. DETAILED DESCRIPTION

[0028] The following embodiments of the present invention are described in further detail in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0029] In the description of the present invention, unless otherwise specified, "plurality" means two or more than two; the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention 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 operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0030] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" 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 or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] Example:

[0032] As attached Figure 1 To Attachment Figure 6 As shown:

[0033] The present invention provides a double-head coaxial boring and milling processing device for mechanical processing, comprising a machine base 1, a coaxial processing mechanism 3, a coaxial drill rod 4, a drill bit fixture 5, a three-axis centering chuck 6, a driving motor 7, a transmission shaft 8, a linkage rod 9 and a position control rod 10; the left and right sides of the machine base 1 are respectively fixed with support side plates 2 by screwing; the coaxial processing mechanism 3 is provided with two groups, and the coaxial processing mechanism 3 is symmetrically installed inside the machine base 1; the coaxial processing mechanism 3 is composed of a movable shell 301, a composite transmission wheel 302 and a positioning sleeve 303; the movable shell 301 is plugged into the top surface of the machine base 1; the composite transmission wheel 302 is rotatably connected to the outside of the positioning sleeve 303; the positioning sleeve 303 is plugged into the inside of the movable shell 301; the coaxial drill rod 4 is rotatably connected to the top of the movable shell 301; the drill bit fixture 5 is fixedly connected to one end of the rod body of the coaxial drill rod 4; the three-axis centering chuck 6 is fixed to the top of the chuck mounting seat in the middle of the machine base 1 by screwing; The driving motor 7 is fixed to the side of the right supporting side plate 2 by screwing, and the driving motor 7 is electrically connected to the external power supply and the control device. Its specific structure and working principle are existing mature technologies and will not be described here; the two ends of the transmission shaft 8 are rotatably connected to the inside of the left and right supporting side plates 2 respectively; one end of the shaft body of the transmission shaft 8 is fixedly connected to the driven gear 801, and the rotating rod of the driving motor 7 is fixedly connected to the driving gear 701; the driven gear 801 and the driving gear 701 are meshed and connected by gear teeth; one end of the linkage rod 9 is rotatably connected to the side of the chuck mounting seat of the machine base 1, and the other end of the linkage rod 9 is rotatably connected to the inside of the corresponding side supporting side plate 2; one end of the linkage rod 9 and the inner end of the rod body of the position control rod 10 are fixedly connected with a bevel gear, and the bevel gears of the linkage rod 9 and the position control rod 10 are meshed and connected with each other; the linkage rod 9 passes through the inside of the movable housing 301; the position control rod 10 is rotatably connected to the inside of the chuck mounting seat of the machine base 1.

[0034] Among them, the shaft body of the transmission shaft 8 is provided with a transmission rack 802, and the transmission rack 802 is designed to be through-length on the shaft body of the transmission shaft 8. A coaxial gear 3021 is provided on the outer side of the compound transmission wheel 302, and the gear teeth of the coaxial gear 3021 are engaged and transmitted with the transmission rack 802 of the transmission shaft 8. This design enables the transmission rack 802 of the shaft body of the transmission shaft 8 to synchronously drive the compound transmission wheels 302 of the two coaxial processing mechanisms 3 to rotate through the coaxial gear 3021 when the transmission shaft 8 rotates, and the compound transmission wheel 302 will also transmit with the transmission rack 802 of the transmission shaft 8 when moving, so that transmission failure will not occur, thereby improving the stability of the device.

[0035] Among them, a transmission sprocket 3022 is provided on the inner side of the composite transmission wheel 302 and on one end of the coaxial drill rod 4 located inside the mobile housing 301, and the two transmission sprockets 3022 are connected by a transmission chain. This design enables the transmission sprocket 3022 of the composite transmission wheel 302 to synchronously drive the coaxial drill rod 4 to rotate when the two composite transmission wheels 302 rotate synchronously, and the drill bit clamped by the drill bit clamp 5 is used to drill the parts. A single drive motor 7 is used to coaxially drive the two coaxial processing mechanisms 3, which saves costs, facilitates maintenance, and improves the practicality of the device.

[0036] Among them, the cross-sectional shape of the positioning sleeve 303 is an "I"-shaped design, and track holes 3031 are provided on both sides of the interior of the positioning sleeve 303, and two track rods 201 are provided on the inner side of the supporting side plate 2, and the track rods 201 pass through the interior of the movable shell 301, and the track rods 201 are inserted into the interior of the track holes 3031. This design enables the two track rods 201 to fix the angle of the positioning sleeve 303, so that when the linkage rod 9 rotates, the positioning sleeve 303 will not rotate synchronously with the linkage rod 9 under the positioning action of the track rod 201, so that the lateral position of the coaxial machining mechanism 3 can be stably adjusted, and transmission failure will not occur, thereby improving the stability of the device.

[0037] Among them, a threaded hole is provided in the middle part of the positioning sleeve 303, the rod body of the linkage rod 9 is provided with a thread, and the linkage rod 9 is screwed into the inside of the threaded hole of the positioning sleeve 303 through the rod body thread. This design enables the position control rod 10 to drive the linkage rod 9 to rotate through the bevel gear when the position control rod 10 is rotated, so that the linkage rod 9 drives the movable housing 301 to move horizontally through the rod body thread to change the position of the drill clamp 5 holding the drill bit. The two coaxial processing mechanisms 3 can move independently under the action of the two position control rods 10 without interfering with each other, and can adapt to the requirements of drilling depth in different situations, thereby improving the adaptability and flexibility of the device.

[0038] Among them, a positioning block 3011 is provided at the bottom of the mobile shell 301, and the positioning block 3011 is designed in a "T" shape. A positioning groove 101 is provided on the top of the base 1, and the positioning block 3011 is inserted into the inside of the positioning groove 101. This design enables the positioning groove 101 to limit the moving trajectory of the mobile shell 301 through the positioning block 3011, so that the mobile shell 301 will not be skewed or twisted when moving, causing the two drill bit clamps 5 and the three-axis centering chuck 6 to deviate from the clamping center. The device can stably and accurately perform drilling processing on both ends of shaft parts, thereby improving the stability of the device.

[0039] Among them, the clamping center of the three-axis centering chuck 6 and the clamping center of the two drill bit fixtures 5 are located on the same straight line, so that the device can stably position and drill holes at both ends of shaft parts without the phenomenon of hole position deviation on both sides of the parts. The processing accuracy is more accurate, which improves the adaptability and flexibility of the device.

[0040] The specific usage and function of this embodiment are as follows:

[0041] In the present invention, the shaft parts are fixed inside the three-axis centering chuck 6, and then the power supply of the driving motor 7 is turned on. When the driving motor 7 rotates, the driving gear 701 of the driving motor 7 can drive the transmission shaft 8 to rotate through the driven gear 801, and the transmission rack 802 of the shaft body of the transmission shaft 8 can synchronously drive the composite transmission wheels 302 of the two coaxial processing mechanisms 3 to rotate through the coaxial gear 3021, so that the transmission sprocket 3022 of the composite transmission wheel 302 synchronously drives the coaxial drill rod 4 to rotate, and the drill bit clamped by the drill bit clamp 5 is used to drill the parts. A single driving motor 7 is used. The two coaxial machining mechanisms 3 are coaxially driven, which saves costs and is easy to maintain. When drilling, the drilling depth is controlled by rotating the position control rod 10. When the position control rod 10 is rotated, the position control rod 10 can drive the linkage rod 9 to rotate through the bevel gear, so that the linkage rod 9 drives the movable housing 301 to move horizontally through the rod body thread to change the position of the drill clamp 5 holding the drill bit. The two track rods 201 can fix the angle of the positioning sleeve 303, so that when the linkage rod 9 rotates, the positioning sleeve 303 will not rotate synchronously with the linkage rod 9 under the positioning effect of the track rod 201, so that The lateral position of the coaxial processing mechanism 3 can be stably adjusted without transmission failure. The positioning groove 101 can limit the moving trajectory of the movable housing 301 through the positioning block 3011, so that the movable housing 301 will not be skewed or twisted during movement, causing the two drill fixtures 5 and the three-axis centering chuck 6 to deviate from the clamping center, so that the device can stably and accurately perform drilling on both ends of shaft parts. The two coaxial processing mechanisms 3 can move independently under the action of the two position control rods 10 without interfering with each other, and can adapt to the needs of drilling depth in different situations. The three-axis centering chuck 6 and the drill fixture 5 are located on the same straight line, which can stably position and drill holes on both ends of shaft parts without the phenomenon of hole deviation on both sides of the parts. The processing accuracy is more accurate. The device can coaxially drive the drill bits of the two drill fixtures 5 to rotate through the transmission shaft 8 for drilling holes on both ends of shaft parts, and the two coaxial processing mechanisms 3 can move independently, so that the operations of drilling holes on both ends of shaft parts can be completed at the same time, and the parts need not be re-clamped. The drilling positioning is accurate, the operation is convenient and flexible, and the processing efficiency is high.

[0042] The embodiments of the present invention are given for the purpose of illustration and description, and are not intended to be exhaustive or to limit the invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

Claims

1. A double-head coaxial boring and milling device for machining, characterized in that: The invention comprises a machine base (1), a coaxial processing mechanism (3), a coaxial drill rod (4), a drill bit fixture (5), a three-axis centering chuck (6), a driving motor (7), a transmission shaft (8), a linkage rod (9) and a position control rod (10); the left and right sides of the machine base (1) are respectively fixed with supporting side plates (2) by screws; the coaxial processing mechanism (3) is provided with two groups, and the coaxial processing mechanism (3) is symmetrically installed inside the machine base (1); the coaxial processing mechanism (3) is composed of a movable shell (301), a composite The movable housing (301) is inserted into the top surface of the machine base (1); the composite transmission wheel (302) is rotatably connected to the outside of the locating sleeve (303); the locating sleeve (303) is inserted into the inside of the movable housing (301); the coaxial drill rod (4) is rotatably connected to the top of the movable housing (301); the drill bit fixture (5) is fixedly connected to one end of the rod body of the coaxial drill rod (4); the three-axis centering chuck (6) is fixedly connected by screws. The driving motor (7) is fixed on the top of the chuck mounting seat in the middle of the machine base (1); the driving motor (7) is fixed to the side of the right supporting side plate (2) by screwing; the two ends of the transmission shaft (8) are respectively rotatably connected to the inside of the left and right supporting side plates (2); one end of the shaft body of the transmission shaft (8) is fixedly connected to a driven gear (801), and the rotating rod of the driving motor (7) is fixedly connected to a driving gear (701); the driven gear (801) and the driving gear (701) are connected by gear teeth meshing transmission; the linkage rod ( One end of the linkage rod (9) is rotatably connected to the side of the chuck mounting seat of the machine base (1), and the other end of the linkage rod (9) is rotatably connected to the inside of the corresponding side supporting side plate (2); one end of the linkage rod (9) and the inner end of the rod body of the position control rod (10) are fixedly connected with a bevel gear, and the bevel gears of the linkage rod (9) and the position control rod (10) are meshed and connected to each other; the linkage rod (9) passes through the inside of the movable housing (301); the position control rod (10) is rotatably connected to the inside of the chuck mounting seat of the machine base (1); The shaft body of the transmission shaft (8) is provided with a transmission rack (802), and the transmission rack (802) is designed to be through-length on the shaft body of the transmission shaft (8); a coaxial gear (3021) is provided on the outer side of the composite transmission wheel (302), and the gear teeth of the coaxial gear (3021) are meshed and transmission-connected with the transmission rack (802) of the transmission shaft (8); A transmission sprocket (3022) is provided on the inner side of the composite transmission wheel (302) and on one end of the coaxial drill rod (4) located inside the movable housing (301), and the two transmission sprockets (3022) are connected to each other via a transmission chain. The cross-sectional shape of the positioning sleeve (303) is an "I"-shaped design, and track holes (3031) are provided on both sides of the interior of the positioning sleeve (303), and two track rods (201) are provided on the inner side of the supporting side plate (2), and the track rods (201) pass through the interior of the movable housing (301), and the track rods (201) are inserted into the interior of the track holes (3031); A threaded hole is provided in the middle of the positioning sleeve (303), a rod body of the linkage rod (9) is provided with threads, and the linkage rod (9) is screwed into the threaded hole of the positioning sleeve (303) through the rod body threads; A positioning block (3011) is provided at the bottom of the mobile housing (301), and the positioning block (3011) is designed in a "T" shape. A positioning groove (101) is provided at the top of the base (1), and the positioning block (3011) is inserted into the interior of the positioning groove (101); The clamping center of the three-axis centering chuck (6) and the clamping centers of the two drill bit fixtures (5) are located on the same straight line; By fixing the shaft parts inside the three-axis centering chuck (6), and then turning on the power of the driving motor (7), when the driving motor (7) rotates, the driving gear (701) of the driving motor (7) can drive the transmission shaft (8) to rotate through the driven gear (801), and the transmission rack (802) of the shaft body of the transmission shaft (8) can synchronously drive the composite transmission wheels (302) of the two coaxial processing mechanisms (3) to rotate through the coaxial gear (3021), so that the transmission sprocket (3022) of the composite transmission wheel (302) synchronously drives the coaxial drill rod (4) to rotate, and the drill bit clamped by the drill bit clamp (5) is used to drill the parts, and the two coaxial processing mechanisms (3) are coaxially driven by a single driving motor (7). , saving costs and easy maintenance. When drilling, the drilling depth is controlled by rotating the position control rod (10). When the position control rod (10) is rotated, the position control rod (10) can drive the linkage rod (9) to rotate through the bevel gear, so that the linkage rod (9) drives the movable housing (301) to move horizontally through the rod body thread to change the position of the drill bit clamp (5) holding the drill bit. The two track rods (201) can fix the angle of the positioning sleeve (303), so that when the linkage rod (9) rotates, the positioning sleeve (303) will not rotate synchronously with the linkage rod (9) under the positioning effect of the track rod (201), so that the lateral position of the coaxial processing mechanism (3) can be stably adjusted, and transmission failure will not occur. The positioning groove (101) can limit the moving track of the movable housing (301) through the positioning block (3011), so that the movable housing (301) will not be skewed or twisted when moving, causing the clamping centers of the two drill clamps (5) and the three-axis centering chuck (6) to deviate, so that the device can stably and accurately perform drilling processing on the two ends of the shaft part. The two coaxial processing mechanisms (3) can move independently under the action of the two position control rods (10) without interfering with each other, and can adapt to the requirements of drilling depth under different conditions. The clamping center of the three-axis centering chuck (6) and the clamping center of the drill clamp (5) are located on the same straight line, so that the two ends of the shaft part can be stably positioned and drilled, and the hole position on both sides of the part will not deviate. The device can drive the drill bits of the two drill clamps (5) to rotate coaxially through the transmission shaft (8) for drilling processing on the two ends of the shaft part, and the two coaxial processing mechanisms (3) can move independently, so that the operation of drilling processing on the two ends of the shaft part can be completed simultaneously.

Images