Numerical control turning equipment for automobile D column

Abstract

The invention relates to the technical field of numerical control lathes, in particular to numerical control turning equipment for an automobile D column. Comprising a machine body, a machine door is arranged on one side of the machine body; a hydraulic cylinder is arranged in the machine body; the hydraulic cylinder is fixedly connected with the machine body; a clamping block is arranged below the hydraulic cylinder; a workbench is mounted at the upper end of the base; a strip-shaped groove is formed in the upper end of the workbench. By arranging the two connecting rods, a drill bit and a screw tap can be mounted at the lower ends of the two connecting rods correspondingly, so that machining of a bolt hole and an internal thread of the bolt hole in the same equipment is achieved, personal errors caused by human intervention and adjustment in the workpiece transferring process are avoided, meanwhile, machining is conducted on the same equipment, and machining efficiency is improved. And tiny differences of positions and clamping modes existing in different devices can be avoided, so that the position of a hole and the position of a starting point of a thread meet the design requirement, and the machining precision of the automobile D column is further improved.

Description

Technical Field

[0001] The invention relates to the technical field of numerically controlled lathes, in particular to numerically controlled turning equipment for automobile D-pillars. Background Art

[0002] Turning is a lathe processing technology, that is, lathe processing, which is a part of mechanical processing; lathe processing mainly uses a turning tool to turn the rotating workpiece; on the lathe, drills, reamer, reamer, tap, die and knurling tools can also be used for corresponding processing; When processing the D-pillar of an automobile, a turning tool is often used to cut the contour of the surface of the automobile D-pillar first, and then drills, taps and other tools are replaced in sequence to process the bolt holes on the surface of the automobile D-pillar and the threads inside the bolt holes. In order to improve the processing efficiency of the automobile D-pillar, multiple machines are often used to process different processes at the same time, thereby avoiding production pauses caused by tool replacement or processing preparation time. For this purpose, three CNC lathes are often used to process the automobile D-pillar, thereby simultaneously performing contour cutting, bolt hole and thread processing on the surface of the automobile D-pillar; When the bolt hole and the thread in the bolt hole of the automobile D-pillar are processed separately, that is, the hole processing and the thread processing are completed in two devices respectively, although the two steps can be performed simultaneously to improve the processing efficiency; however, in the process from hole processing to thread processing, the workpiece needs to be transferred manually, which requires the staff to re-clamp the workpiece, and the human intervention and adjustment in this process will introduce human errors; in addition, different equipment will also have slight differences in position and clamping methods, which will cause the position of the hole and the starting point of the thread to deviate from the design requirements, affecting the consistency and accuracy of the final processing results of the automobile D-pillar; In view of this, in order to overcome the above technical problems, the present invention proposes a CNC turning processing equipment for a D-pillar of an automobile, which solves the above technical problems. Summary of the invention

[0003] In order to make up for the shortcomings of the prior art, the present invention proposes a CNC turning processing equipment for automobile D-pillars. The present invention arranges two connecting rods so that a drill bit and a tap can be respectively installed at the lower ends of the two connecting rods, thereby realizing the processing of bolt holes and internal threads of bolt holes in the same equipment, avoiding human errors introduced by human intervention and adjustment during the workpiece transfer process. At the same time, processing in the same equipment can avoid slight differences in positions and clamping methods of different equipment, so as to ensure that the position of the hole and the starting point position of the thread meet the design requirements, thereby improving the processing accuracy of the automobile D-pillar.

[0004] The technical solution adopted by the present invention to solve the technical problem is: a CNC turning processing equipment for automobile D-pillars described in the present invention comprises: The machine body has a base fixedly connected to the lower end of the machine body; a machine door is provided on one side of the machine body; a hydraulic cylinder is provided in the machine body; the hydraulic cylinder is fixedly connected to the machine body; a clamping block is provided below the hydraulic cylinder; a workbench is installed on the upper end of the base; a strip groove is provided on the upper end of the workbench; a slider is slidably connected in the strip groove; the slider is connected to the groove wall of the slide groove through an electric push rod; the clamping block is fixedly connected to the upper end of the slider through a hydraulic push rod; A mounting plate, the mounting plate is fixedly mounted on the lower end of the hydraulic cylinder; a cavity is provided inside the mounting plate; a gear ring and a driving gear are rotatably connected in the cavity; a driving motor is mounted on the upper end of the mounting plate; the driving gear is fixedly connected to the output shaft of the driving motor; the gear ring is meshed with the driving gear; a through groove communicating with the cavity is provided inside the mounting plate; a connecting rod is installed in the through groove; the gear ring is slidably connected to the connecting rod; two connecting rods are provided; the two connecting rods are distributed on both sides of the driving motor; a drill bit and a tap are respectively mounted on the lower ends of the two connecting rods; A pushing unit is installed inside the mounting plate; the pushing unit is used to push the connecting rod to slide in the through groove.

[0005] Preferably, a mounting groove is provided at the upper end of the machine body; the hydraulic cylinder is slidably connected in the mounting groove; a screw is rotatably connected in the mounting groove; the screw is helically connected to the hydraulic cylinder; a servo motor is installed on one side of the machine body; and the servo motor is used to drive the screw to rotate.

[0006] Preferably, a movable groove is opened at the upper end of the base; a screw is rotatably connected in the movable groove; the workbench is connected to the screw by spiral transmission; a bevel gear is fixedly connected to one end of the screw; a bevel gear shaft meshing with the bevel gear is installed at the output end of the servo motor; the screw is connected to the output shaft of the servo motor by belt transmission through a transmission belt.

[0007] Preferably, the output shaft of the servo motor is provided with a square groove; an insertion rod is slidably connected in the square groove; the insertion rod is connected to the bottom of the square groove by a supporting spring; an electromagnetic ring is inlaid in the bottom of the square groove; a clamping groove is provided at one end of the bevel gear shaft close to the servo motor; a circular groove connected to the square groove is provided on the surface of the output shaft of the drive motor; a round rod is slidably and sealably connected in the circular groove; a limiting groove cooperating with the round rod is provided on the inner ring wall of the transmission belt; a protrusion is fixedly connected to the surface of the screw; the protrusion meshes with the limiting groove of the inner ring wall of the transmission belt.

[0008] Preferably, the lower end of the connecting rod is rotatably connected with a clamping jaw; three clamping jaws are provided; the surfaces of the three clamping jaws are sleeved with conical rings; and the conical ring is threadedly connected to the connecting rod.

[0009] Preferably, the pushing unit includes a pneumatic push rod; the connecting rod is slidably connected in the through groove; the pneumatic push rod is installed on the upper end of the mounting plate; the connecting rod is rotatably connected to one end of the pneumatic push rod away from the mounting plate.

[0010] Preferably, the pushing unit includes a pushing rod; a storage cavity is provided in the mounting plate; the pushing rod is slidingly and sealably connected in the storage cavity; the connecting rod is rotatably connected in the through groove; a groove is provided at the lower end of the connecting rod; a mounting block is slidingly and sealably connected in the groove; the clamp is rotatably connected to one end of the mounting block away from the groove; the two mounting blocks are respectively threadedly connected to the drill bit and the tap; the groove is connected to the storage cavity through a hose.

[0011] Preferably, the pushing unit also includes a rack; a connecting groove is provided at one end of the pushing rod close to the driving gear; the rack is slidingly and sealingly connected in the connecting groove; the rack is connected to the bottom of the connecting groove by a connecting spring; and an electromagnetic sheet is inlaid at the bottom of the connecting groove.

[0012] The beneficial effects of the present invention are as follows: The present invention arranges two connecting rods so that a drill bit and a tap can be respectively installed at the lower ends of the two connecting rods, thereby realizing the processing of bolt holes and threads inside the bolt holes in the same device, avoiding human errors introduced by human intervention and adjustment during the workpiece transfer process. At the same time, processing in the same device can avoid slight differences in positions and clamping methods of different devices, so as to ensure that the positions of the holes and the starting points of the threads meet the design requirements, thereby improving the processing accuracy of the automobile D-pillar.

[0013] The present invention provides a pneumatic push rod. When the drill bit processes the bolt hole on the automobile D-pillar, the user controls the pneumatic push rod above the tap to retract, so that the pneumatic push rod above the tap pulls the connecting rod to drive the tap to rise, so that the tap enters the through groove, thereby preventing the tap from contacting the upper end surface of the automobile D-pillar, so as to prevent the tap from causing friction damage to the upper surface of the automobile D-pillar. Similarly, when the tap processes the thread in the processed bolt hole, the user controls the pneumatic push rod above the drill bit to retract, so that the pneumatic push rod above the drill bit can pull the drill bit to rise through the connecting rod connected thereto, so that the drill bit enters the through groove, thereby preventing the drill bit from contacting the automobile D-pillar when the tap processes the thread in the bolt hole, and preventing the drill bit from causing damage to other parts of the automobile D-pillar, thereby ensuring the processing quality of the surface of the automobile D-pillar, so that the practicality of the present invention is further improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The present invention is further described below in conjunction with the accompanying drawings and implementation modes.

[0015] Figure 1 is a stereogram of the present invention with a hose installed; Figure 2 yes Figure 1 The enlarged view of point A in the middle; Figure 3 It is a schematic diagram of the structure in which a hose is installed in the present invention; Figure 4 yes Figure 3 The enlarged view of point B in the middle; Figure 5 It is a structural schematic diagram of a mounting plate on which a push rod is mounted in the present invention; Figure 6 It is a structural schematic diagram of a mounting plate on which a pneumatic push rod is mounted in the present invention; Figure 7 It is a transmission stereogram of the transmission belt used in the present invention; Figure 8 yes Figure 7 Enlarged view of point C in the middle; Fig. 9 yes Figure 7 The enlarged view of point D in the middle; Fig.10 This is a physical picture of the automobile D-pillar processed by the present invention; In the figure: 1, machine body; 11, base; 111, clamping block; 112, workbench; 113, strip groove; 114, slider; 115, electric push rod; 116, hydraulic push rod; 12, machine door; 13, hydraulic cylinder; 14, mounting groove; 141, screw rod; 142, servo motor; 15, moving groove; 151, screw rod; 152, bevel gear; 153, bevel gear shaft; 16, transmission belt; 161, limit groove; 17, square groove; 171, plug rod; 172, support spring; 173, electromagnetic ring; 174 , slot; 18, round groove; 181, round rod; 182, protrusion; 2, mounting plate; 21, cavity; 211, gear ring; 212, driving gear; 213, driving motor; 22, through groove; 23, connecting rod; 231, drill bit; 232, tap; 24, clamping claw; 241, conical ring; 25, pneumatic push rod; 26, pushing rod; 261, storage cavity; 262, rack; 263, connecting groove; 264, connecting spring; 265, electromagnetic sheet; 27, groove; 271, mounting block; 272, hose. DETAILED DESCRIPTION

[0016] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0017] like Figures 1 to 10 As shown, the CNC turning processing equipment for automobile D-pillars described in the present invention includes the following embodiments: Embodiment 1, a CNC turning processing equipment for a D-pillar of an automobile, comprising: The machine body 1 has a base 11 fixedly connected to the lower end of the machine body 1; a door 12 is provided on one side of the machine body 1; a hydraulic cylinder 13 is provided inside the machine body 1; the hydraulic cylinder 13 is fixedly connected to the machine body 1; a clamping block 111 is provided below the hydraulic cylinder 13; a workbench 112 is installed on the upper end of the base 11; a strip groove 113 is provided on the upper end of the workbench 112; a slider 114 is slidably connected in the strip groove 113; the slider 114 is connected to the groove wall of the slide groove through an electric push rod 115; the clamping block 111 is fixedly connected to the upper end of the slider 114 through a hydraulic push rod 116; A mounting plate 2 is fixedly mounted on the lower end of the hydraulic cylinder 13; a cavity 21 is provided inside the mounting plate 2; a gear ring 211 and a driving gear 212 are rotatably connected in the cavity 21; a driving motor 213 is installed on the upper end of the mounting plate 2; the driving gear 212 is fixedly connected to the output shaft of the driving motor 213; the gear ring 211 is meshed with the driving gear 212; a through groove 22 communicating with the cavity 21 is provided inside the mounting plate 2; a connecting rod 23 is installed in the through groove 22; the gear ring 211 is slidably connected to the connecting rod 23; two connecting rods 23 are provided; the two connecting rods 23 are distributed on both sides of the driving motor 213; a drill bit 231 and a tap 232 are installed at the lower ends of the two connecting rods 23 respectively; A pushing unit is installed inside the mounting plate 2 ; the pushing unit is used to push the connecting rod 23 to slide in the through slot 22 .

[0018] In this embodiment, a mounting groove 14 is opened at the upper end of the body 1; the hydraulic cylinder 13 is slidably connected in the mounting groove 14; a screw 141 is rotatably connected in the mounting groove 14; the screw 141 is spirally connected to the hydraulic cylinder 13; a servo motor 142 is installed on one side of the body 1; the servo motor 142 is used to drive the screw 141 to rotate.

[0019] In this embodiment, a movable groove 15 is opened at the upper end of the base 11; a screw rod 151 is rotatably connected in the movable groove 15; the workbench 112 is spirally connected to the screw rod 151; one end of the screw rod 151 is fixedly connected to a bevel gear 152; the output end of the servo motor 142 is equipped with a bevel gear shaft 153 meshing with the bevel gear 152; the screw rod 141 is connected to the output shaft of the servo motor 142 through a transmission belt 16 for belt transmission.

[0020] In this embodiment, the output shaft of the servo motor 142 is provided with a square groove 17; an insertion rod 171 is slidably connected in the square groove 17; the insertion rod 171 is connected to the bottom of the square groove 17 by a support spring 172; an electromagnetic ring 173 is inlaid at the bottom of the square groove 17; a clamping groove 174 is provided at one end of the bevel gear shaft 153 close to the servo motor 142; a circular groove 18 connected to the square groove 17 is provided on the surface of the output shaft of the drive motor 213; a round rod 181 is slidably sealed and connected in the circular groove 18; a limiting groove 161 cooperating with the round rod 181 is provided on the inner ring wall of the transmission belt 16; a protrusion 182 is fixedly connected to the surface of the screw rod 141; the protrusion 182 is meshed with the limiting groove 161 of the inner ring wall of the transmission belt 16.

[0021] In this embodiment, the lower end of the connecting rod 23 is rotatably connected with a clamping jaw 24 ; three clamping jaws 24 are provided; the surfaces of the three clamping jaws 24 are sleeved with conical rings 241 ; the conical rings 241 are threadedly connected to the connecting rod 23 .

[0022] In this embodiment, the pushing unit includes a pneumatic push rod 25; the connecting rod 23 is slidably connected in the through groove 22; the pneumatic push rod 25 is installed at the upper end of the mounting plate 2; the connecting rod 23 is rotatably connected to the end of the pneumatic push rod 25 away from the mounting plate 2; During operation, when the bolt hole and the thread in the bolt hole of the automobile D-pillar are processed separately, that is, the hole processing and thread processing are completed in two devices respectively, although the two steps can be performed simultaneously to improve the processing efficiency; however, in the process from hole processing to thread processing, the workpiece needs to be transferred manually, which requires the staff to re-clamp the workpiece, and the human intervention and adjustment in this process will introduce human errors; in addition, different equipment will also have slight differences in position and clamping methods, which will cause the position of the hole and the starting point of the thread to deviate from the design requirements, affecting the consistency and accuracy of the final processing results of the automobile D-pillar; In this regard, the present invention provides two connecting rods 23, so that the drill bit 231 and the tap 232 can be installed at the lower ends of the two connecting rods 23, respectively, so as to realize the processing of the bolt hole and the inner thread of the bolt hole in the same device, thereby avoiding the human error introduced by human intervention and adjustment during the workpiece transfer process. At the same time, processing in the same device can avoid the slight differences in the position and clamping methods of different devices, so as to ensure that the position of the hole and the starting point of the thread meet the design requirements, thereby improving the processing accuracy of the automobile D-pillar; In the initial state, the workbench 112 is located at one end of the moving slot 15 close to the machine door 12, and the hydraulic push rod 116 on the workbench 112 is in an extended state, so that the clamping block 111 is pushed by the hydraulic push rod 116 and is located above the workbench 112, and the length direction of the moving slot 15 is the width direction of the machine body 1, and the length direction of the installation slot 14 is the length direction of the machine body 1; after the contour processing of the automobile D-pillar, the user opens the machine door 12, and places the contour processed automobile D-pillar at the center of the workbench 112, and controls the electric push rod 115 in the strip groove 113 to push the slider 114 close to the automobile D-pillar, at this time, the slider 114 drives the clamping block 111 close to the automobile D-pillar; when the slider 114 drives the clamping block 111 to move to the top of the automobile D-pillar, the electric push rod 115 is controlled to stop, and at this time, the hydraulic push rod 116 is controlled to retract, so that the hydraulic The push rod 116 can pull the clamping block 111 down, so that the clamping block 111 descends and contacts the D-pillar of the car, so that the clamping block 111 presses the D-pillar of the car onto the workbench 112; then, the required drill bit 231 and tap 232 are selected according to the size of the drill hole, and the drill bit 231 is inserted under the connecting rod 23 away from the machine door 12, so that the drill bit 231 is inserted between the three clamping jaws 24 under the connecting rod 23, and the conical ring 241 is rotated, so that during the tightening process, the conical ring 241 can push the clamping jaws 24 in sliding contact with it to rotate in a direction close to each other, so that the three clamping jaws 24 clamp the drill bit 231, and at this time, the conical ring 241 is blocked by the clamping jaws 24 and cannot continue to tighten, and at this time, the rotating drum is fixedly installed under the connecting rod 23 away from the machine door 12; similarly, the tap 232 is fixedly installed under the connecting rod 23 close to the machine door 12; In the initial state, the square groove 17 is filled with hydraulic oil, the transmission belt 16 is made of PTFE material, the screw 141 is stably transmitted with the transmission belt 16 through the surface protrusion 182, and the insertion rod 171 extends out of the square groove 17 and penetrates into the card groove 174 under the push of the restoring force of the support spring 172, so that the bevel gear shaft 153 is connected to the output shaft of the servo motor 142 through the insertion rod 171. At this time, the space in the square groove 17 is increased, so that the hydraulic oil in the circular groove 18 flows into the square groove 17. At this time, the pressure in the circular groove 18 is reduced, so that the round rod 181 connected to the circular groove 18 by the sliding seal is deeply into the circular groove 18 under the adsorption of negative pressure. At this time, the output of the servo motor 142 is The output shaft is in sliding contact with the transmission belt 16; therefore, at this time, the servo motor 142 is controlled to rotate, so that the servo motor 142 can drive the bevel gear shaft 153 to rotate, so that the bevel gear shaft 153 can drive the screw rod 151 to rotate through the bevel gear 152 meshing therewith, so that the screw rod 151 drives the workbench 112 to move along the moving groove 15 toward the direction close to the hydraulic push rod 116, so that the workbench 112 drives the automobile D-pillar to move to the bottom of the drill bit 231, so that the part of the automobile D-pillar to be drilled is located below the drill bit 231, and then the electromagnetic ring 173 is controlled to be energized, so that the electromagnetic ring 173 can absorb the insertion rod 171 into the square groove 17, and at this time the insertion rod 171 extends out of the card slot 17 4, so that the bevel gear shaft 153 is separated from the output shaft of the servo motor 142, and in the process of the insertion rod 171 entering the square groove 17, the insertion rod 171 will squeeze the hydraulic oil in the square groove 17 into the circular groove 18, so that the round rod 181 in the circular groove 18 extends out of the circular groove 18 and enters the limiting groove 161 under the push of the hydraulic oil; at this time, the servo motor 142 is controlled to rotate, so that the servo motor 142 can push the groove wall of the limiting groove 161 through the round rod 181 extending out of the circular groove 18, and then push the transmission belt 16 to rotate between the screw rod 141 and the output shaft of the servo motor 142, so that the transmission belt 16 drives the screw rod 141 to rotate, so that the screw rod 141 drives the screw rod 141 to rotate during the rotation process. The hydraulic push rod 116 slides in the mounting groove 14, so that the hydraulic push rod 116 drives the drill rod to move along the length direction of the machine body 1, thereby realizing the adjustment of the precision alignment between the drill rod and the position of the hole to be drilled on the D-pillar of the automobile; after the adjustment is completed, the hydraulic push rod 116 is controlled to descend, so that the hydraulic push rod 116 pushes the drill bit 231 fixed to the mounting plate 2 to descend, so that the drill bit 231 can contact the position of the hole to be drilled on the D-pillar of the automobile, and at the same time, the driving motor 213 is controlled to rotate, so that the driving motor 213 drives the gear rings 211 meshed on both sides to rotate through the driving gear 212, so that the two gear rings 211 respectively drive the connecting rods 23 slidably connected to them to rotate;Since the drill bit 231 and the tap 232 are installed under the two connecting rods 23, the two connecting rods 23 drive the drill bit 231 and the tap 232 to rotate, so that the drill bit 231 can drill the lower end of the automobile D-pillar during the rotation. However, in order to prevent the tap 232 installed under the mounting plate 2 from contacting the automobile D-pillar and to prevent the tap 232 from causing friction damage to the upper surface of the automobile D-pillar, the present invention provides a pneumatic push rod 25. When the drill bit 231 performs bolt hole processing on the automobile D-pillar, the user controls the pneumatic push rod 25 above the tap 232 to retract, so that the pneumatic push rod 25 above the tap 232 pulls the connecting rod 23 to drive the tap 232 to rise, so that the tap 232 enters the through groove 22. Thus, the tap 232 is prevented from contacting with the upper end surface of the automobile D-pillar, so as to prevent the tap 232 from causing friction damage to the upper surface of the automobile D-pillar. Similarly, when the tap 232 performs thread processing in the processed bolt hole, the user controls the pneumatic push rod 25 above the drill bit 231 to contract, so that the pneumatic push rod 25 above the drill bit 231 can pull the drill bit 231 up through the connecting rod 23 connected thereto, so that the drill bit 231 enters the through groove 22, thereby preventing the tap 232 from contacting with the automobile D-pillar when processing the thread in the bolt hole, and preventing the drill bit 231 from causing damage to other parts of the automobile D-pillar, thereby ensuring the processing quality of the automobile D-pillar surface, so that the practicality of the present invention is further improved. ;

[0023] Embodiment 2 is different from Embodiment 1 in that: The pushing unit includes a pushing rod 26; a storage cavity 261 is provided in the mounting plate 2; the pushing rod 26 is slidingly sealed and connected in the storage cavity 261; the connecting rod 23 is rotatably connected in the through groove 22; a groove 27 is provided at the lower end of the connecting rod 23; a mounting block 271 is slidingly sealed and connected in the groove 27; the clamping jaw 24 is rotatably connected to one end of the mounting block 271 away from the groove 27; the two mounting blocks 271 are threadedly connected to the drill bit 231 and the tap 232 respectively; the groove 27 and the storage cavity 261 are connected through a hose 272.

[0024] In this embodiment, the pushing unit further includes a rack 262; a connecting groove 263 is provided at one end of the pushing rod 26 close to the driving gear 212; the rack 262 is slidably sealed and connected in the connecting groove 263; the rack 262 is connected to the bottom of the connecting groove 263 via a connecting spring 264; an electromagnetic sheet 265 is inlaid at the bottom of the connecting groove 263; During operation, since the sizes and structures of cars of different models are different, the sizes of the D-pillars used are also different. For the D-pillars of large cars, longer drill bits 231 and taps 232 need to be selected for hole processing and thread processing; and in the process of the pneumatic push rod 25 pulling the connecting rod 23 to drive the screw rod 151 to enter the through groove 22, the connecting rod 23 is always in sliding connection with the gear ring 211, so the height of the connecting rod 23 rising in the through groove 22 is limited to a certain extent, that is, the pneumatic push rod 25 can only pull the shorter drill bit 231 and the screw rod 151 into the through groove 22, while the longer drill bit 231 or tap 232 cannot completely enter the through groove 22, which easily causes the longer drill bit 231 or tap The lower end of the mounting plate 222 exposed by the connecting rod 232 is likely to cause damage to the surface of the D-pillar of the automobile. To solve this problem, the present invention provides a groove 27 at the lower end of the connecting rod 23. When the drill 231 is needed to process the bolt hole on the surface of the D-pillar of the automobile, the user first controls the driving motor 213 to operate, so that the driving motor 213 drives the driving gear 212 to rotate. In the initial state, there are two storage chambers 261. The two storage chambers 261 are located on both sides of the push rod 26. The two ends of the push rod 26 are respectively connected in a sliding and sealing manner in the two storage chambers 261. The electromagnetic sheet 265 is in a power-off state. Therefore, the rack 262 will extend out of the connecting groove 263 under the push of the connecting spring 264, so that the rack 262 extending out of the connecting groove 263 moves toward the The drive motor 213 drives the drive gear 212 to rotate, so that the drive gear 212 can push the gear rack 262 meshed with it to move toward the storage chamber 261 of the drill bit 231, so that the gear rack 262 drives the push rod 26 to push the hydraulic oil in the storage chamber 261 into the hose 272, and then flows from the hose 272 into the groove 27 in the connecting rod 23 above the drill bit 231, so that the hydraulic oil entering the groove 27 can push the mounting plate 2 to move away from the bottom of the groove 27, and at this time, the mounting plate 2 drives the drill bit 231 at its lower end to extend out of the groove 27; and as the push rod 26 moves, the push rod 2 6 One end of the storage chamber 261 near the tap 232 moves in a direction away from the tap 232, so that the space in the storage chamber 261 near the tap 232 increases, so that the hydraulic oil in the groove 27 above the tap 232 enters the storage chamber 261, so that the groove 27 is in a negative pressure state, so that the mounting block 271 in the groove 27 drives the tap 232 to enter the groove 27, and then the hydraulic cylinder 13 is controlled to push the mounting plate 2 down, so that the mounting plate 2 drives the drill bit 231 extending out of the groove 27 to approach the D-pillar of the car. Before the drill bit 231 contacts the D-pillar of the car, the electromagnetic sheet 265 is controlled to be energized, so that the electromagnetic sheet 265 can absorb the rack 262 and squeeze the connecting spring 264 into the connecting groove 263;As a result, the rack 262 is separated from the driving gear 212, and the push rod 26 is stabilized in the storage chamber 261 under the action of sliding friction. As the driving motor 213 drives the driving gear 212 to rotate, the driving gear 212 can drive the connecting rod 23 connected to the gear ring 211 to rotate, so that the connecting rod 23 drives the drill bit 231 to drill the D-pillar of the car at the lower end; when the drilling is completed, the hydraulic cylinder 13 is controlled to rise and the electromagnetic sheet 265 is controlled to be powered off. At this time, the rack 262 extends out of the connecting groove 263 and meshes with the driving gear 212. At this time, the driving motor 213 is controlled to rotate in the opposite direction, so that the driving motor 213 can drive the rack 262 through the driving gear 212 to drive the push rod 26 to move in the direction close to the tap 232, so that the push rod 26 pushes the hydraulic oil in the storage chamber 261 close to the tap 232 into the groove above the tap 232. 27, so that the hydraulic oil entering the groove 27 pushes the mounting block 271 connected to the tap 232 to drive the tap 232 downward, and the hydraulic oil in the groove 27 above the drill bit 231 flows back into the storage chamber 261, so that the drill bit 231 enters the groove 27 driven by the mounting block 271; at this time, the user can drive the tap 232 extending out of the groove 27 to perform thread processing on the bolt hole processed by the drill bit 231, without using the pneumatic push rod 25 to pull the connecting rod 23 up, avoiding the through groove 22 to limit the rising height of the connecting rod 23, thereby ensuring that the longer drill bit 231 or tap 232 can completely enter the groove 27 driven by the mounting block 271, thereby avoiding the longer drill bit 231 or tap 232 from exposing the lower end of the mounting plate 2 and causing damage to the surface of the automobile D-pillar, thereby ensuring the processing quality of the surface of the automobile D-pillar, so that the practicality of the present invention is further improved. ;

[0025] In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate directions or positional relationships based on the attached Figure 1 The orientation or positional relationship shown is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, it cannot be understood as limiting the scope of protection of the present invention. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0026] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A CNC turning equipment for automobile D-pillars, comprising: A machine body (1), wherein a base (11) is fixedly connected to the lower end of the machine body (1); a machine door (12) is provided on one side of the machine body (1); a hydraulic cylinder (13) is provided inside the machine body (1); the hydraulic cylinder (13) is fixedly connected to the machine body (1); a clamping block (111) is provided below the hydraulic cylinder (13); a workbench (112) is installed at the upper end of the base (11); a strip groove (113) is provided at the upper end of the workbench (112); a sliding block (114) is slidably connected in the strip groove (113); the sliding block (114) is connected to the groove wall of the sliding groove through an electric push rod (115); the clamping block (111) is fixedly connected to the upper end of the sliding block (114) through a hydraulic push rod (116), and is characterized in that: A mounting plate (2), wherein the mounting plate (2) is fixedly mounted on the lower end of the hydraulic cylinder (13); a cavity (21) is provided inside the mounting plate (2); a gear ring (211) and a driving gear (212) are rotatably connected inside the cavity (21); a driving motor (213) is mounted on the upper end of the mounting plate (2); the driving gear (212) is fixedly connected to the output shaft of the driving motor (213); the gear ring (211) is meshed with the driving gear (212); a through groove (22) is provided inside the mounting plate (2) and is communicated with the cavity (21); a connecting rod (23) is mounted in the through groove (22); the gear ring (211) is slidably connected to the connecting rod (23); two connecting rods (23) are provided; the two connecting rods (23) are distributed on both sides of the driving motor (213); a drill bit (231) and a tap (232) are mounted on the lower ends of the two connecting rods (23) respectively; A pushing unit is installed inside the mounting plate (2); the pushing unit is used to push the connecting rod (23) to slide in the through groove (22).

2. The CNC turning equipment for automobile D-pillar according to claim 1, characterized in that: The upper end of the machine body (1) is provided with a mounting groove (14); the hydraulic cylinder (13) is slidably connected in the mounting groove (14); a screw rod (141) is rotatably connected in the mounting groove (14); the screw rod (141) is connected to the hydraulic cylinder (13) by helical transmission; a servo motor (142) is installed on one side of the machine body (1); the servo motor (142) is used to drive the screw rod (141) to rotate.

3. The CNC turning equipment for automobile D-pillar according to claim 2 is characterized in that: The upper end of the base (11) is provided with a movable groove (15); a screw rod (151) is rotatably connected in the movable groove (15); the workbench (112) is connected to the screw rod (151) by spiral transmission; one end of the screw rod (151) is fixedly connected to a bevel gear (152); the output end of the servo motor (142) is provided with a bevel gear shaft (153) meshing with the bevel gear (152); the screw rod (141) is connected to the output shaft of the servo motor (142) by belt transmission via a transmission belt (16).

4. The CNC turning equipment for automobile D-pillar according to claim 3 is characterized in that: The output shaft of the servo motor (142) is provided with a square groove (17); a plug rod (171) is slidably connected in the square groove (17); the plug rod (171) is connected to the bottom of the square groove (17) via a support spring (172); an electromagnetic ring (173) is embedded in the bottom of the square groove (17); a clamping groove (174) is provided at one end of the bevel gear shaft (153) close to the servo motor (142); a circular groove (18) connected to the square groove (17) is provided on the surface of the output shaft of the drive motor (213); a round rod (181) is slidably sealed in the circular groove (18); a limiting groove (161) cooperating with the round rod (181) is provided on the inner ring wall of the transmission belt (16); a protrusion (182) is fixedly connected to the surface of the screw rod (141); the protrusion (182) meshes with the limiting groove (161) of the inner ring wall of the transmission belt (16).

5. The CNC turning equipment for automobile D-pillar according to claim 4 is characterized in that: The lower end of the connecting rod (23) is rotatably connected with a clamping claw (24); three clamping claws (24) are provided; the surfaces of the three clamping claws (24) are sleeved with conical rings (241); the conical rings (241) are threadedly connected to the connecting rod (23).

6. The CNC turning equipment for automobile D-pillar according to claim 1, characterized in that: The pushing unit comprises a pneumatic push rod (25); the connecting rod (23) is slidably connected in the through groove (22); the pneumatic push rod (25) is mounted on the upper end of the mounting plate (2); and the connecting rod (23) is rotatably connected to an end of the pneumatic push rod (25) away from the mounting plate (2).

7. The CNC turning equipment for automobile D-pillar according to claim 5 is characterized in that: The pushing unit comprises a pushing rod (26); a storage cavity (261) is provided in the mounting plate (2); the pushing rod (26) is slidably sealed and connected in the storage cavity (261); the connecting rod (23) is rotatably connected in the through groove (22); a groove (27) is provided at the lower end of the connecting rod (23); a mounting block (271) is slidably sealed and connected in the groove (27); the clamping jaw (24) is rotatably connected to an end of the mounting block (271) away from the groove (27); the two mounting blocks (271) are respectively threadedly connected to the drill bit (231) and the tap (232); the groove (27) and the storage cavity (261) are connected via a hose (272).

8. The CNC turning equipment for automobile D-pillar according to claim 7 is characterized in that: The pushing unit further comprises a rack (262); a connecting groove (263) is provided at one end of the pushing rod (26) close to the driving gear (212); the rack (262) is slidingly and sealingly connected in the connecting groove (263); the rack (262) and the bottom of the connecting groove (263) are connected via a connecting spring (264); and an electromagnetic sheet (265) is inlaid at the bottom of the connecting groove (263).

Images