Multi-station automatic drilling and tapping machine

Abstract

The invention discloses a multi-station automatic drilling and tapping machine, and relates to the technical field of tapping machines, the multi-station automatic drilling and tapping machine comprises a machine tool, and a length control device, a clamping device and a punching device are arranged above the machine tool; round workpieces are placed on a positioning wheel and a clamping frame, the length of the round workpieces can be fixed by rotating a first rotating motor to be matched with a gear, a rack block, a power-assisted wheel, a sliding knob wheel, a connecting frame, a pulley, a sliding rail and a stop block, fixed-length machining can ensure that the sizes of all the workpieces are consistent, and the situation that subsequent machining or assembling is affected due to different sizes is avoided; the screw rod is rotated to drive the first spiral groove to rotate, when the screw rod stops rotating, the clamping block is clamped into the clamping groove to limit rotation of the screw rod, the moving distance of the clamping block is limited through the limiting rod, and the screw rod is prevented from being mistakenly touched by external force and rotating.

Description

Technical Field

[0001] The invention relates to the technical field of tapping machines, in particular to a multi-station automatic drilling and tapping machine. Background Art

[0002] Multi-station automatic drilling and tapping machine is a kind of equipment widely used in modern manufacturing industry. It is mainly used for efficient drilling and tapping operations on various materials. Automation technology has been widely used in manufacturing industry. Multi-station automatic drilling and tapping machine can realize automatic processing and improve production efficiency and product quality by introducing efficient control system and intelligent process management.

[0003] The patent with the patent announcement number CN217122396U relates to the technical field of tapping machines. The patent discloses a multi-station automatic drilling and tapping machine, including a workbench, a fixed frame, a placement plate and a support plate. The top of the workbench is fixedly connected to the fixed frame, the inside of the fixed frame is connected to the placement plate by insertion, a pad is provided inside the placement plate, the top of the fixed frame is fixedly connected to the internal threaded ring, the inside of the internal threaded ring is connected to the clamping screw by threading, and the clamping screw is located on the top of the placement plate. This multi-station automatic drilling and tapping machine solves the problem of poor compatibility of traditional automatic drilling and tapping machines during use by providing a fixed frame with a special structure on the workbench. Since a pull-out placement plate is installed inside the fixed frame, two placement plates can carry workpieces of different sizes when placed symmetrically, which is very convenient to use, with a simple overall structure and strong compatibility.

[0004] The above patent is very convenient to use, has a simple overall structure and strong compatibility, but the current measuring equipment has the following problems: the same tapping process for workpieces of different lengths may cause compatibility problems with subsequent accessories, affecting the overall assembly efficiency and accuracy, and even causing poor assembly or failure. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a multi-station automatic drilling and tapping machine, which solves the problems raised in the above-mentioned background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a multi-station automatic drilling and tapping machine, including a machine tool, wherein a fixed length device, a clamping device and a punching device are arranged above the machine tool; wherein the fixed length device includes a fixed frame, a rotating motor, a slide rail, a stop block, a gear, a rack block, an auxiliary wheel, a slide button wheel, a pulley, a connecting frame, a positioning wheel, a clamping frame, a fixed block, a screw rod, a limit rod and a clamping block, wherein the fixed frame is fixedly mounted on the top of the machine tool, the fixed end of the rotating motor is fixedly mounted on the right side of the fixed frame, the slide rail is fixedly mounted on the top of the machine tool, the stop block is fixedly mounted on the right side of the slide rail, the gear is fixedly mounted on the output end of the rotating motor, one side of the rack block is slidably mounted on the inner wall of the fixed frame, the auxiliary wheel is rotatably mounted on the inner wall of the fixed frame, the other side of the rack block is slidably mounted on the circumferential surface of the auxiliary wheel, and the slide button wheel is fixedly mounted on The gear wheel is rotated by the rotation of the rotating shaft, and the gear wheel rotates to rotate, and the gear wheel rotates to rotate and the gear wheel rotates to rotate. The rack block moves forward and backward through the auxiliary wheel, and the rack block moves stably and horizontally through the auxiliary wheel. The rack block moves and drives the sliding button wheel to move, and at the same time drives the connecting frame to move. The sliding button wheel moves and drives the pulley to move along the slide rail until the sliding button wheel contacts the end block and stops. In this way, the length of the circular workpiece can be fixed.

[0007] According to the above technical solution, the gear is meshed with the rack block, and a spiral groove one is provided on the circumferential surface of the screw rod. The spiral groove one is driven to rotate by rotating the screw rod. A limiting groove is provided on the side of the screw rod close to the limiting rod. The rotation of the screw rod is limited by inserting the card block into the limiting groove, and the moving distance of the card block is limited by the limiting rod.

[0008] According to the above technical scheme, the clamping device includes a rotating motor 2, a rotating sleeve, a brake block, a fixed sleeve, a fixed frame, a fixed rod, a clamping rod and an auxiliary wheel, the fixed end of the rotating motor 2 is fixedly mounted on the surface of the fixed frame, the rotating sleeve is rotatably mounted on the inner wall of the clamping frame, the brake block is fixedly mounted on the rear side of the clamping frame, the fixed sleeve is fixedly mounted on the rear side of the rotating sleeve, the fixed frame is fixedly mounted between the rotating sleeve and the fixed sleeve, the fixed rod is fixedly mounted on the rear side of the clamping frame, one side of the clamping rod is rotatably mounted on the circumferential surface of the fixed rod, the other side of the clamping rod is fixedly mounted on the inner wall of the fixed frame, and the auxiliary wheel is rotatably mounted on the inner wall of the clamping rod, the brake block is threadedly connected to a spiral groove, and the brake block is driven to move along the screw rod through the rotation of the spiral groove, the movement of the brake block drives the rotating sleeve to rotate, the rotation of the rotating sleeve drives the fixed sleeve to rotate, the rotation of the fixed sleeve drives the fixed frame to move, the movement of the fixed frame drives the clamping rod to move toward the center of the clamping frame, and the movement of the clamping rod drives the auxiliary wheel to move, so as to clamp the circular workpiece.

[0009] According to the above technical solution, the clamping device also includes a placing wheel and a round rod. The placing wheel is rotatably mounted on the inner wall of the fixed frame. One side of the round rod is fixedly mounted on the output end of the second rotating motor. The other side of the round rod rotates and penetrates the inner and outer walls of the fixed frame. The placing wheel is connected to the round rod through a No. 1 belt. The rotation of the round rod drives the placing wheel to rotate through the No. 1 belt, so that the workpiece placed on the placing wheel is moved so that the next location can be punched. The rotation of the round rod drives the rotating rod to rotate through the No. 2 belt.

[0010] According to the above technical scheme, the clamping device also includes a U-shaped frame, a hollow frame, a rotating rod, a round button, a round groove block and a short rod. The U-shaped frame is fixedly installed on the top of the fixed frame, the hollow frame is fixedly installed on the left side of the U-shaped frame, the rotating rod rotates through the inner and outer walls of the hollow frame, the rotating rod is connected to the round rod through a No. 2 belt, the round button is fixedly installed on the right side of the rotating rod, one side of the round groove block is slidably installed on the right side of the rotating rod, and the other side of the round groove block is slidably installed on the inner wall of the U-shaped frame, the short rod is fixedly installed on the front side of the round groove block, and a card slot is provided on the inner wall of the U-shaped frame. The rotation of the rotating rod drives the round button to rotate, and the rotation of the round button drives the round groove block to move back and forth, and the movement of the round groove block drives the short rod to move.

[0011] According to the above technical solution, the punching device includes a sliding frame, an electric push rod, a drill rod base and a drilling and tapping head. The sliding frame is slidably installed on the outer wall of the U-shaped frame, the fixed end of the electric push rod is fixedly installed on the inner wall of the U-shaped frame, the drill rod base is fixedly installed on the output end of the electric push rod, and the drilling and tapping head is arranged at the bottom of the drill rod base. The drill rod base is driven to move by the downward movement of the output end of the electric push rod. The movement of the drill rod base drives the drilling and tapping head to move while compressing spring No. 1.

[0012] According to the above technical solution, the punching device also includes a No. 1 spring, a clamping plate, a trigger rod and a nozzle. The clamping plate is rotatably installed on the inner wall of the sliding frame. The No. 1 spring is arranged between the drill rod base and the clamping plate. The trigger rod is fixedly installed on the top of the clamping plate. The nozzle is arranged on the rear side of the U-shaped frame. When the drill rod base contacts the clamping plate, the clamping plate is driven to move downward. The movement of the clamping plate drives the sliding frame to move until the workpiece is clamped for subsequent punching. At this time, the output end of the electric push rod continues to drive the drilling and tapping head to move downward until it contacts the workpiece for punching. The processing area is cooled by spraying coolant through the nozzle, and the coolant is output after being drained through the inside of the fixed frame.

[0013] According to the above technical scheme, the punching device also includes a sliding rod, a T-shaped rod, a receiving frame and a limiting block. The sliding rod slides through the inner and outer walls of the clamping plate, the T-shaped rod is fixedly installed on the surface of the U-shaped frame, the receiving frame is fixedly installed on the top of the clamping plate, and the limiting block is slidably installed on the inner wall of the receiving frame. A No. 2 spring is arranged between the sliding rod and the clamping plate, and a No. 3 spring is arranged between the limiting block and the receiving frame. The movement of the clamping plate drives the sliding rod to move, and the movement of the sliding rod will contact the T-shaped rod. After the sliding rod contacts the T-shaped rod, the sliding rod will move upward, and the movement of the sliding rod will contact the inclined surface of the limiting block. At this time, the limiting block moves and is inserted into the slot. At this time, the clamping plate cannot continue to clamp downward to avoid excessive clamping force causing the workpiece to be crushed.

[0014] The present invention provides a multi-station automatic drilling and tapping machine. It has the following beneficial effects: (1) The invention places a circular workpiece on a positioning wheel and a clamping frame by setting a length-fixing device. The length of the circular workpiece can be fixed by rotating a rotating motor to cooperate with the gear, rack block, auxiliary wheel, slider wheel, connecting frame, pulley, slide rail and end block. The fixed-length processing can ensure that the size of each workpiece is consistent, avoiding the influence of different sizes on subsequent processing or assembly. The spiral groove is driven to rotate by rotating the screw rod. When the screw rod stops rotating, the rotation of the screw rod is restricted by inserting a clamping block into the clamping groove, and the moving distance of the clamping block is restricted by a limit rod to prevent the screw rod from being accidentally touched by external force and causing rotation.

[0015] (2) The invention, through the setting of the clamping device, realizes the clamping of the circular workpiece by rotating the spiral groove 1 in coordination with the brake block, the screw rod, the rotating sleeve, the fixed sleeve, the fixed frame, the clamping rod and the clamping frame, and the workpiece can rotate by itself through the auxiliary wheel, and the rotation of the round rod is driven by the rotation of the rotating motor 2, and the rotation of the round rod drives the placement wheel to rotate through the No. 1 belt, so that the workpiece placed on the placement wheel can be moved so as to punch the next location.

[0016] (3) The invention, through the setting of the punching device, moves the output end of the electric push rod downward to cooperate with the drill rod base, the drilling and tapping head, the No. 1 spring, the clamping plate and the sliding frame to clamp the workpiece for subsequent punching. At this time, the output end of the electric push rod continues to drive the drilling and tapping head to move downward until it contacts the workpiece for punching. The processing area is cooled by spraying coolant through the nozzle. The coolant is discharged after being drained through the inside of the fixed frame. The clamping plate moves to cooperate with the sliding rod, T-shaped rod, limiting block and slot so that the clamping plate cannot continue to clamp downward to avoid excessive clamping force causing the workpiece to be crushed. The short rod moves to contact the inclined surface of the trigger rod to cause the trigger rod to rotate downward. The trigger rod rotates downward to drive the clamping plate to rotate. The rotation of the clamping plate will shake out the splashed debris to prevent accumulation on the clamping plate and cause blockage. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the position structure of the clamping frame and the rack block of the present invention; Figure 3 It is a partial cross-sectional structural schematic diagram of the length fixing device of the present invention; Figure 4 It is a schematic diagram of the structure of the clamping device of the present invention; Figure 5 This is a schematic diagram of the position structure of the clamping block and the limiting rod of the present invention; Figure 6 This is a schematic diagram of the position structure of the round rod and the rotating rod of the present invention; Figure 7 This is a schematic diagram of the position structure of the slide bar and the nozzle of the present invention; Figure 8 It is a schematic diagram of the partial cross-sectional structure of the punching device of the present invention.

[0018] In the figure: 1, machine tool; 10, fixed frame; 11, rotating motor 1; 12, slide rail; 13, stop block; 14, gear; 15, rack block; 151, auxiliary wheel; 16, slide button wheel; 17, pulley; 18, connecting frame; 19, positioning wheel; 110, clamping frame; 111, fixed block; 112, screw rod; 113, limit rod; 114, clamping block; 20, rotating motor 2; 201, rotating sleeve; 21, brake block; 22, fixed sleeve; 23, fixed frame; 24, Fixed rod; 25, clamping rod; 26, auxiliary wheel; 27, placement wheel; 28, round rod; 29, U-shaped frame; 291, hollow frame; 292, rotating rod; 210, round button; 211, round groove block; 212, short rod; 30, sliding frame; 31, electric push rod; 32, drill rod base; 33, drilling and tapping integrated head; 34, No. 1 spring; 35, clamping plate; 36, trigger rod; 37, nozzle; 38, slide rod; 39, T-shaped rod; 310, receiving frame; 311, limiting block. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] See also Figure 1-Figure 5 One embodiment of the present invention is: a multi-station automatic drilling and tapping machine, including a machine tool 1, a length-fixing device is arranged above the machine tool 1, and the length-fixing device includes a fixed frame 10, a rotating motor 11, a slide rail 12, a stop block 13, a gear 14, a rack block 15, an auxiliary wheel 151, a slide button wheel 16, a pulley 17, a connecting frame 18, a positioning wheel 19, a clamping frame 110, a fixed block 111, a screw rod 112, a limit rod 113 and a clamping block 114, and the fixed frame 10 is fixedly mounted on The top of the machine tool 1, the fixed end of the rotating motor 11 is fixedly mounted on the right side of the fixed frame 10, the slide rail 12 is fixedly mounted on the top of the machine tool 1, the end block 13 is fixedly mounted on the right side of the slide rail 12, the gear 14 is fixedly mounted on the output end of the rotating motor 11, one side of the rack block 15 is slidably mounted on the inner wall of the fixed frame 10, the auxiliary wheel 151 is rotatably mounted on the inner wall of the fixed frame 10, the other side of the rack block 15 is slidably mounted on the circumferential surface of the auxiliary wheel 151, and the sliding knob wheel 16 is fixedly mounted At the bottom of the rack block 15, one side of the pulley 17 is rotatably mounted on the inner wall of the slide knob wheel 16, and the other side of the pulley 17 contacts the slide rail 12. The connecting frame 18 is fixedly mounted on the top of the rack block 15, and the positioning wheel 19 is rotatably mounted on the inner wall of the connecting frame 18. The clamping frame 110 is fixedly mounted on the top of the rack block 15. In this way, the length of the circular workpiece can be fixed. The fixed-length processing can ensure that the size of each workpiece is consistent, avoiding the influence of different sizes on subsequent processing or assembly. The fixed block 111 is fixedly mounted on the surface of the clamping frame 110, the screw rod 112 rotates and passes through the inner and outer walls of the fixed block 111, the limit rod 113 is rotatably mounted on the surface of the screw rod 112, and the clamping block 114 is slidably mounted on the circumferential surface of the limit rod 113. When the screw rod 112 stops rotating, the rotation of the screw rod 112 is restricted by clamping the clamping block 114 into the clamping groove, and the moving distance of the clamping block 114 is restricted by the limit rod 113 to prevent the screw rod 112 from being accidentally touched by external force and causing rotation.

[0021] The gear 14 is meshed with the rack block 15 , a spiral groove 1 is provided on the circumferential surface of the screw rod 112 , and a limiting groove is provided on one side of the screw rod 112 close to the limiting rod 113 , and the brake block 21 is driven to move along the screw rod 112 by the rotation of the spiral groove 1 .

[0022] When the present embodiment is working, the circular workpiece is placed on the positioning wheel 19 and the clamping frame 110, and the gear 14 is driven to rotate by the rotating motor 11, and the gear 14 is driven to move forward and backward by the rotation of the gear 14, and the rack block 15 is moved stably through the auxiliary wheel 151, and the rack block 15 moves and drives the slider wheel 16 to move, and at the same time drives the connecting frame 18 to move, and the slider wheel 16 moves and drives the pulley 17 to move along the slide rail 12 until the slider wheel 16 contacts the end block 13 and stops. In this way, the length of the circular workpiece can be fixed, and the fixed-length processing can ensure that the size of each workpiece is consistent, and avoid affecting the subsequent processing or assembly due to different sizes. The spiral groove 1 is driven to rotate by rotating the screw rod 112. When the screw rod 112 stops rotating, the rotation of the screw rod 112 is limited by inserting the block 114 into the limit groove, and the moving distance of the block 114 is limited by the limit rod 113 to prevent the screw rod 112 from being accidentally touched by external force and causing rotation.

[0023] See also Figure 1-Figure 8 On the basis of the above embodiment, in another embodiment of the present invention, a clamping device and a punching device are arranged above the machine tool 1, and the clamping device includes a rotating motor 20, a rotating sleeve 201, a brake block 21, a fixed sleeve 22, a fixed frame 23, a fixed rod 24, a clamping rod 25 and an auxiliary wheel 26. The fixed end of the rotating motor 20 is fixedly mounted on the surface of the fixed frame 10, the rotating sleeve 201 is rotatably mounted on the inner wall of the clamping frame 110, the brake block 21 is fixedly mounted on the rear side of the clamping frame 110, and the fixed sleeve 201 is fixedly mounted on the inner wall of the clamping frame 110. 2 is fixedly mounted on the rear side of the rotating sleeve 201, the fixing frame 23 is fixedly mounted between the rotating sleeve 201 and the fixing sleeve 22, the fixing rod 24 is fixedly mounted on the rear side of the clamping frame 110, one side of the clamping rod 25 is rotatably mounted on the circumferential surface of the fixing rod 24, the other side of the clamping rod 25 is fixedly mounted on the inner wall of the fixing frame 23, the auxiliary wheel 26 is rotatably mounted on the inner wall of the clamping rod 25, the brake block 21 is threadedly connected with a spiral groove, so as to clamp the circular workpiece, and the workpiece can rotate by itself through the auxiliary wheel 26.

[0024] The clamping device also includes a placing wheel 27 and a round rod 28. The placing wheel 27 is rotatably mounted on the inner wall of the fixed frame 10. One side of the round rod 28 is fixedly mounted on the output end of the rotating motor 20. The other side of the round rod 28 rotates and penetrates the inner and outer walls of the fixed frame 10. The placing wheel 27 is connected to the round rod 28 through a No. 1 belt. The rotation of the round rod 28 drives the placing wheel 27 to rotate through the No. 1 belt, so that the workpiece placed on the placing wheel 27 is moved so as to punch the next hole.

[0025] The clamping device also includes a U-shaped frame 29, a hollow frame 291, a rotating rod 292, a round button 210, a round groove block 211 and a short rod 212. The U-shaped frame 29 is fixedly mounted on the top of the fixed frame 10, the hollow frame 291 is fixedly mounted on the left side of the U-shaped frame 29, the rotating rod 292 rotates through the inner and outer walls of the hollow frame 291, the rotating rod 292 is connected to the round rod 28 through the second belt, the round button 210 is fixedly mounted on the right side of the rotating rod 292, and one side of the round groove block 211 is fixedly mounted on the right side of the rotating rod 292. The side is slidably installed on the right side of the rotating rod 292, and the other side of the circular groove block 211 is slidably installed on the inner wall of the U-shaped frame 29. The short rod 212 is fixedly installed on the front side of the circular groove block 211. A card slot is provided on the inner wall of the U-shaped frame 29. The round rod 28 rotates through the No. 2 belt to drive the rotating rod 292 to rotate. The rotation of the rotating rod 292 drives the round button 210 to rotate. The rotation of the round button 210 drives the circular groove block 211 to move back and forth. The movement of the circular groove block 211 drives the short rod 212 to move.

[0026] The punching device includes a sliding frame 30, an electric push rod 31, a drill rod base 32 and a drilling and tapping head 33. The sliding frame 30 is slidably installed on the outer wall of the U-shaped frame 29, the fixed end of the electric push rod 31 is fixedly installed on the inner wall of the U-shaped frame 29, the drill rod base 32 is fixedly installed on the output end of the electric push rod 31, and the drilling and tapping head 33 is arranged at the bottom of the drill rod base 32. The drill rod base is driven to move by the downward movement of the output end of the electric push rod, and the movement of the drill rod base 32 drives the drilling and tapping head 33 to move.

[0027] The punching device also includes a No. 1 spring 34, a clamping plate 35, a trigger rod 36 and a nozzle 37. The clamping plate 35 is rotatably mounted on the inner wall of the sliding frame 30. The No. 1 spring 34 is arranged between the drill rod base 32 and the clamping plate 35. The movement of the clamping plate 35 is buffered by the arranged No. 1 spring 34. The trigger rod 36 is fixedly mounted on the top of the clamping plate 35. The nozzle 37 is arranged on the rear side of the U-shaped frame 29. The cooling liquid is sprayed through the nozzle 37 to cool the processing area. The cooling liquid is discharged after being drained through the inside of the fixed frame 10.

[0028] The punching device also includes a slide bar 38, a T-shaped bar 39, a receiving frame 310 and a limiting block 311. The slide bar 38 slides through the inner and outer walls of the clamping plate 35, the T-shaped bar 39 is fixedly installed on the surface of the U-shaped frame 29, the receiving frame 310 is fixedly installed on the top of the clamping plate 35, and the limiting block 311 is slidably installed on the inner wall of the receiving frame 310. The limiting block 311 moves and is inserted into the slot. At this time, the clamping plate 35 cannot continue to clamp downward to avoid excessive clamping force causing the workpiece to be crushed. A No. 2 spring is arranged between the slide bar 38 and the clamping plate 35, and the slide bar 38 is reset by the No. 2 spring. A No. 3 spring is arranged between the limiting block 311 and the receiving frame 310, and the limiting block 311 is reset by the No. 3 spring.

[0029] When the present embodiment is working, the brake block 21 is driven to move along the screw rod 112 by the rotation of the spiral groove 1, the movement of the brake block 21 drives the rotating sleeve 201 to rotate, the rotation of the rotating sleeve 201 drives the fixed sleeve 22 to rotate, the rotation of the fixed sleeve 22 drives the fixed frame 23 to move, the movement of the fixed frame 23 drives the clamping rod 25 to move toward the center of the clamping frame 110, the movement of the clamping rod 25 drives the auxiliary wheel 26 to move, so as to clamp the circular workpiece, and the workpiece can rotate by itself through the auxiliary wheel 26, the rotation of the rotating motor 20 drives the round rod 28 to rotate, the rotation of the round rod 28 drives the placement wheel 27 to rotate through the first belt, so that the workpiece placed on the placement wheel 27 is moved, so as to punch the next place, the rotation of the round rod 28 drives the rotating rod 292 to rotate through the second belt, the rotation of the rotating rod 292 drives the round button 210 to rotate, the rotation of the round button 210 drives the round groove block 211 to move back and forth, and the movement of the round groove block 211 drives the short rod 212 to move; The output end of the electric push rod 31 moves downward to drive the drill rod base 32 to move, and the movement of the drill rod base 32 drives the drilling and tapping integrated head 33 to move while compressing the No. 1 spring 34. When the drill rod base 32 contacts the clamping plate 35, it drives the clamping plate 35 to move downward. The movement of the clamping plate 35 drives the sliding frame 30 to move until the workpiece is clamped for subsequent punching. At this time, the output end of the electric push rod 31 continues to drive the drilling and tapping integrated head 33 to move downward until it contacts the workpiece for punching. The cooling liquid is sprayed through the nozzle 37 to cool the processing area. The cooling liquid is discharged after being drained through the internal of the fixed frame 10. The clamping plate 3 The movement of the short rod 212 drives the slide bar 38 to move, and the slide bar 38 contacts the T-shaped rod 39. After the slide bar 38 contacts the T-shaped rod 39, the slide bar 38 moves upward, and contacts the inclined surface of the limiting block 311. At this time, the limiting block 311 moves and inserts into the slot. At this time, the clamping plate 35 cannot continue to clamp downward to avoid excessive clamping force causing the workpiece to be crushed. The movement of the short rod 212 contacts the inclined surface of the trigger rod 36 to make the trigger rod 36 rotate downward. The downward rotation of the trigger rod 36 drives the clamping plate 35 to rotate. The rotation of the clamping plate 35 shakes out the splashed debris to prevent accumulation on the clamping plate 35 and cause blockage.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A multi-station automatic drilling and tapping machine, comprising a machine tool (1), characterized in that: A length fixing device, a clamping device and a punching device are arranged above the machine tool (1); The length-fixing device comprises a fixed frame (10), a rotating motor (11), a slide rail (12), a stop block (13), a gear (14), a rack block (15), an auxiliary wheel (151), a sliding knob wheel (16), a pulley (17), a connecting frame (18), a positioning wheel (19), a clamping frame (110), a fixed block (111), a screw rod (112), a limit rod (113) and a clamping block (114), wherein the fixed frame (10) is fixedly mounted on the top of the machine tool (1), a fixed end of the rotating motor (11) is fixedly mounted on the right side of the fixed frame (10), the slide rail (12) is fixedly mounted on the top of the machine tool (1), the stop block (13) is fixedly mounted on the right side of the slide rail (12), the gear (14) is fixedly mounted on the output end of the rotating motor (11), one side of the rack block (15) is slidably mounted on the inner wall of the fixed frame (10), and the auxiliary wheel ( The rack block (151) is rotatably mounted on the inner wall of the fixing frame (10), the other side of the rack block (15) is slidably mounted on the circumferential surface of the auxiliary wheel (151), the sliding knob wheel (16) is fixedly mounted on the bottom of the rack block (15), one side of the pulley (17) is rotatably mounted on the inner wall of the sliding knob wheel (16), the other side of the pulley (17) contacts the slide rail (12), the connecting frame (18) is fixedly mounted on the top of the rack block (15), the positioning wheel (19) is rotatably mounted on the inner wall of the connecting frame (18), the clamping frame (110) is fixedly mounted on the top of the rack block (15), the fixing block (111) is fixedly mounted on the surface of the clamping frame (110), the screw rod (112) rotatably penetrates the inner and outer walls of the fixing block (111), the limiting rod (113) is rotatably mounted on the surface of the screw rod (112), and the clamping block (114) is slidably mounted on the circumferential surface of the limiting rod (113).

2. A multi-station automatic drilling and tapping machine according to claim 1, characterized in that: The gear (14) is meshed with the rack block (15); a spiral groove 1 is provided on the circumferential surface of the screw rod (112); and a limiting groove is provided on one side of the screw rod (112) close to the limiting rod (113).

3. A multi-station automatic drilling and tapping machine according to claim 2, characterized in that: The clamping device comprises a second rotating motor (20), a rotating sleeve (201), a brake block (21), a fixed sleeve (22), a fixed frame (23), a fixed rod (24), a clamping rod (25) and an auxiliary wheel (26); the fixed end of the second rotating motor (20) is fixedly mounted on the surface of the fixed frame (10); the rotating sleeve (201) is rotatably mounted on the inner wall of the clamping frame (110); the brake block (21) is fixedly mounted on the rear side of the clamping frame (110); and the fixed sleeve (22) is fixedly mounted on the inner wall of the clamping frame (110). The fixing frame (23) is fixedly mounted on the rear side of the rotating sleeve (201) and between the rotating sleeve (201) and the fixing sleeve (22); the fixing rod (24) is fixedly mounted on the rear side of the clamping frame (110); one side of the clamping rod (25) is rotatably mounted on the circumferential surface of the fixing rod (24); the other side of the clamping rod (25) is fixedly mounted on the inner wall of the fixing frame (23); the auxiliary wheel (26) is rotatably mounted on the inner wall of the clamping rod (25); and the brake block (21) is threadedly connected to a spiral groove.

4. The multi-station automatic drilling and tapping machine according to claim 3, characterized in that: The clamping device further comprises a placement wheel (27) and a round rod (28); the placement wheel (27) is rotatably mounted on the inner wall of the fixing frame (10); one side of the round rod (28) is fixedly mounted on the output end of the second rotating motor (20); the other side of the round rod (28) rotatably penetrates the inner and outer walls of the fixing frame (10); the placement wheel (27) is transmission-connected to the round rod (28) via a No. 1 belt.

5. The multi-station automatic drilling and tapping machine according to claim 4, characterized in that: The clamping device further comprises a U-shaped frame (29), a hollow frame (291), a rotating rod (292), a round button (210), a round groove block (211) and a short rod (212); the U-shaped frame (29) is fixedly mounted on the top of the fixed frame (10); the hollow frame (291) is fixedly mounted on the left side of the U-shaped frame (29); the rotating rod (292) rotates to penetrate the inner and outer walls of the hollow frame (291); the rotating rod (292) is transmission-connected to the round rod (28) via a No. 2 belt; the round button (210) is fixedly mounted on the right side of the rotating rod (292); one side of the round groove block (211) is slidably mounted on the right side of the rotating rod (292); the other side of the round groove block (211) is slidably mounted on the inner wall of the U-shaped frame (29); the short rod (212) is fixedly mounted on the front side of the round groove block (211); and a clamping groove is provided on the inner wall of the U-shaped frame (29).

6. The multi-station automatic drilling and tapping machine according to claim 5, characterized in that: The punching device comprises a sliding frame (30), an electric push rod (31), a drill rod base (32) and a drilling and tapping integrated head (33); the sliding frame (30) is slidably mounted on the outer wall of the U-shaped frame (29); the fixed end of the electric push rod (31) is fixedly mounted on the inner wall of the U-shaped frame (29); the drill rod base (32) is fixedly mounted on the output end of the electric push rod (31); and the drilling and tapping integrated head (33) is arranged at the bottom of the drill rod base (32).

7. The multi-station automatic drilling and tapping machine according to claim 6, characterized in that: The punching device further comprises a No. 1 spring (34), a clamping plate (35), a trigger rod (36) and a nozzle (37), wherein the clamping plate (35) is rotatably mounted on the inner wall of the sliding frame (30), the No. 1 spring (34) is arranged between the drill rod base (32) and the clamping plate (35), the trigger rod (36) is fixedly mounted on the top of the clamping plate (35), and the nozzle (37) is arranged on the rear side of the U-shaped frame (29).

8. The multi-station automatic drilling and tapping machine according to claim 7, characterized in that: The punching device further comprises a slide bar (38), a T-shaped bar (39), a receiving frame (310) and a limiting block (311); the slide bar (38) slides through the inner and outer walls of the clamping plate (35); the T-shaped bar (39) is fixedly mounted on the surface of the U-shaped frame (29); the receiving frame (310) is fixedly mounted on the top of the clamping plate (35); the limiting block (311) is slidably mounted on the inner wall of the receiving frame (310); a No. 2 spring is arranged between the slide bar (38) and the clamping plate (35); and a No. 3 spring is arranged between the limiting block (311) and the receiving frame (310).

Images