Full-automatic drilling and tapping all-in-one machine for motor cylinder

Abstract

The invention relates to the technical field of hole machining, and discloses a full-automatic drilling and tapping all-in-one machine for a motor cylinder, the full-automatic drilling and tapping all-in-one machine comprises a machining tool bit and a tool frame, the bidirectional co-position disc type tool frame comprises an axial collinear tool module and a driving disc, and a tool B storage pipe is axially collinear; the cutter A storage pipe and the cutter B storage pipe are both rotationally connected to the center axis of the supporting frame, and the rotation center of the cutter A storage pipe and the rotation center of the cutter B storage pipe are consistent. Application of ATC is met, reciprocating switching of matched assemblies is synchronously achieved, the diameter of a driving disc is shortened, and the tool changing circumferential stroke and the circumferential motion frequency are reduced. By adopting a double-pipe elastic connection and coaxial rotating connection mode, the problem of ATC tool collision possibly caused by elasticity loss is solved, the service life of the tool frame is prolonged on the premise that safety and stability are guaranteed, and the problem that reset of the push plate is hindered due to the fact that the push plate is provided with an extending contact rod is solved. And the service life of a reset elastic piece of the pushing plate is prolonged by utilizing the characteristic of double-pipe elastic connection.

Description

Technical Field

[0001] The invention relates to the technical field of hole processing, in particular to a fully automatic drilling and tapping machine for a motor barrel. Background Art

[0002] Many threaded holes will be opened during the processing of the motor barrel, and the threaded holes can fix the machine cover, bracket, closing plate and other structures. Drills and taps are used in the process of threaded hole processing, and drills and taps are used in combination.

[0003] During the machining process, if you want to achieve automated operation, you need to add a tool magazine system. Through the cooperation of the tool magazine and the ATC tool change structure, the tool is also placed in the tool magazine during the tool change, which improves the tool change efficiency.

[0004] During the threaded hole processing, drills and taps need to be frequently switched. If a single hole is processed, the tool needs to be switched once for each operation. If there are threaded holes of various specifications on the motor barrel, the switching frequency will increase. During each tool change, the disc tool magazine needs to be rotated once. Due to the matching characteristics of drills and taps, the integrated drilling and tapping design requires tool storage sleeves that are twice the number of hole specifications and types. The doubling of the number of tool storage sleeves will cause the diameter of the disc tool magazine to increase, and the increase in the diameter of the disc tool magazine will affect the switching time.

[0005] A Chinese patent discloses a large-capacity double-layer disc tool magazine (CN207464787U). The patent adopts a symmetrical tool clamping form, and the tool points radially to the rotation center of the turntable. Although the patent can be used to store drills and taps, it cannot be used with ATC. Because ATC can only take the proximal tool during rotation, if ATC clamps the distal tool during rotation, it will be interfered by the structure of the proximal tool. The symmetrical tool is clamped radially to the turntable in parallel, and the tool has two fixed points, which is not conducive to the combined application of ATC. Summary of the invention

[0006] The purpose of the present invention is to provide a fully automatic drilling and tapping machine for a motor barrel, which, on the basis of a double-tube spring connection and a coaxial rotation connection, meets the application of ATC and simultaneously meets the reciprocating switching problem of the supporting components, shortens the diameter of the drive disk, reduces the circular stroke of the tool change and the number of circular motions, optimizes the tool change time of the drilling and tapping automation processes, and at the same time has a simple and stable structure to solve the problems mentioned in the above background technology.

[0007] To achieve the above object, the present invention provides the following technical solutions:

[0008] A fully automatic drilling and tapping machine for a motor cylinder, comprising a machining tool head and a tool holder, an ATC tool changing mechanism is arranged between the machining tool head and the tool holder, the tool holder is a bidirectional co-positioned disc tool holder, the bidirectional co-positioned disc tool holder comprises an axially co-linear tool module and a driving disc, a plurality of the axially co-linear tool modules are distributed at equal angles on the rotating circumferential surface of the driving disc, the axially co-linear tool module is composed of an axially co-linear tool A storage tube, a tool B storage tube, and a support frame, the tool A storage tube and the tool B storage tube are axially co-linear, the tool A storage tube and the tool B storage tube are both rotatably connected to the central axis of the support frame, and the rotation centers of the tool A storage tube and the tool B storage tube are consistent;

[0009] The end of the tool A storage tube is fixedly connected with a single ear, and the end of the tool B storage tube is fixedly connected with a double ear. A torsion spring is arranged between the single ear and the double ear. The maximum angle of relative rotation between the single ear and the double ear is ninety degrees. When the torsion spring is static, the tool A storage tube and the tool B storage tube are axially collinear.

[0010] As a further solution of the present invention: the two circular end surfaces of the driving disk are rotatably connected to a pushing plate, and the bottom surface of the pushing plate is fixedly connected to an extended contact rod. In a static state, the tool A storage tube and the tool B storage tube remain horizontal, and the extended contact rod is in contact with the tool A storage tube and the tool B storage tube.

[0011] As a further solution of the present invention: the pushing plate and the driving disk are rotatably connected via an elastic rotator. When the pushing plate is kept horizontal, the elastic part of the elastic rotator is in a normal state. When the pushing plate is vertical, the elastic part of the elastic rotator is in a compressed state.

[0012] As a further solution of the present invention: both circular end surfaces of the driving disk are equipped with piston push rods for driving the pushing plate to rotate 90 degrees, and the air supply of the piston push rods is controlled by an air supply controller.

[0013] As a further solution of the present invention: an air circuit controller is provided at the sleeve end of the piston push rod, and an exhaust hole and an air supply hole are respectively provided on the air circuit controller, the air supply hole is connected with the air supply pipe of the air supply controller, the exhaust hole is exposed to the outside, and a closed switch is provided between the exhaust hole and the air supply hole, and the closed switch controls the opening and closing states of the exhaust hole and the air supply hole to be always opposite.

[0014] As a further solution of the present invention: the circumferential surface of the driving disk is rotatably connected with a rotating ring, the rotating ring is fixedly connected with two raised bevels, and the single ear and the double ears are both provided with inclined surfaces matching with the raised bevels.

[0015] As a further solution of the present invention: the support frame is fixedly connected inside the groove body formed by two adjacent raised oblique edges.

[0016] As a further solution of the present invention, the length of the single ear and the double ear is greater than half of the axial length of the driving disc.

[0017] As a further solution of the present invention, a ball bearing is disposed on the bottom surface of the extended contact rod.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] This technical solution adopts a two-way co-positioned disc tool holder to meet the application of ATC and the reciprocating switching problem of the supporting components at the same time, shortening the diameter of the drive disc to reduce the circular stroke of tool change and the number of circular movements. The double-tube elastic connection and coaxial rotation connection are adopted to overcome the ATC tool collision problem caused by the loss of elasticity, so that the service life of the tool holder is increased while ensuring safety and stability.

[0020] On the basis of the double-tube elastic connection and coaxial rotation connection, the reset obstacle problem of the push plate caused by the extended contact rod is solved. And the service life of the reset elastic part of the push plate is improved by utilizing the characteristics of the double-tube elastic connection.

[0021] On the basis of the double-tube elastic connection and coaxial rotation connection, although a control element is added, the reciprocating control method is optimized. There is no need to use the double push rod control method, and the extended piston push rod is quickly retracted by using the elastic reset of the tool A storage tube and the tool B storage tube and the pushing effect of another piston push rod.

[0022] To sum up, this technical solution solves the problem of low tool change efficiency and long stroke caused by the coordinated use of drilling and tapping and the high-frequency switching of double knives, optimizes the tool change time of the drilling and tapping automation processes, and has a simple and stable structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0024] Figure 1 It is a three-dimensional schematic diagram of a fully automatic drilling and tapping machine for a motor cylinder;

[0025] Figure 2 It is a schematic diagram of a fully automatic drilling and tapping machine for a motor barrel after the outer shell of the tool holder is removed;

[0026] Figure 3 It is a three-dimensional schematic diagram of a tool holder in a fully automatic drilling and tapping machine for a motor cylinder;

[0027] Figure 4 A three-dimensional schematic diagram of a tool holder in a fully automatic drilling and tapping machine for a motor barrel from another perspective;

[0028] Figure 5 It is a schematic diagram of the control and force of the tool holder in a fully automatic drilling and tapping machine of a motor barrel;

[0029] Figure 6 It is a schematic diagram of a piston push rod in a fully automatic drilling and tapping machine for a motor cylinder;

[0030] In the figure: 100, processing tool head; 200, ATC tool changing mechanism; 300, bidirectional co-positioned disc tool holder; 301, axial co-linear tool module; 302, driving disk; 3021, rotating ring; 30211, raised bevel; 303, piston push rod; 3031, air circuit controller; 3032, exhaust hole; 3033, air supply hole; 3034, closed switch; 304, air supply controller; 305, push plate; 3051, extended contact rod; 3052, elastic rotator; 1, tool A storage tube; 11, single ear; 2, tool B storage tube; 21, double ear; 3, support frame. DETAILED DESCRIPTION

[0031] Embodiment 1:

[0032] See also Figure 1-Figure 6 : In this embodiment: it includes a processing tool head 100 and a tool holder, an ATC tool changing mechanism 200 is arranged between the processing tool head 100 and the tool holder, the tool holder is a bidirectional co-positioned disc tool holder 300, the bidirectional co-positioned disc tool holder 300 includes an axially co-linear tool module 301 and a drive disc 302, a plurality of axially co-linear tool modules 301 are distributed at equal angles on the rotating circumferential surface of the drive disc 302, the axially co-linear tool module 301 is composed of an axially co-linear tool A storage tube 1, a tool B storage tube 2, and a support frame 3, the tool A storage tube 1 and the tool B storage tube 2 are axially co-linear, the tool A storage tube 1 and the tool B storage tube 2 are both rotatably connected to the central axis of the support frame 3, and the rotation centers of the tool A storage tube 1 and the tool B storage tube 2 are consistent.

[0033] In this embodiment: the distribution positions of the machining tool head 100, the ATC tool changing mechanism 200, and the two-way co-positioned disc tool holder 300 are the same as those in the prior art, and the two-way co-positioned disc tool holder 300 pushes the tool A storage tube 1 or the tool B storage tube 2 to rotate 90 degrees at a single time. One end of the clamp of the ATC tool changing mechanism 200 fixes the tool on the tool A storage tube 1 or the tool B storage tube 2 distributed at 90 degrees, and the other end of the clamp of the ATC tool changing mechanism 200 fixes the tool on the machining tool head 100. Under the push of the hydraulic cylinder, the clamp of the ATC tool changing mechanism 200 descends, so that the tool is separated from the tool A storage tube 1 or the tool B storage tube 2 and the machining tool head 100 and rotated 180 degrees, completing the tool switching and storage action.

[0034] The basic usage is as follows:

[0035] Step 1: A drill bit is fixed in the tool storage tube 1 of tool A, and a tap is fixed in the tool storage tube 2 of tool B. Each axially collinear tool module 301 is equipped with drill bits and taps of different specifications, and the drill bits and taps are matched and arranged in the axially collinear tool module 301;

[0036] Step 2: According to the hole opening sequence, the first group of holes I of the same specification are opened, and the axially colinear tool module 301 matching the holes I of specification is rotated downward by rotating the driving disk 302, and the tool A storage tube 1 is rotated from horizontal to 90 degrees;

[0037] Step 3: The ATC tool changing mechanism 200 rotates 90 degrees, the clamp of the ATC tool changing mechanism 200 is fixed to the drill bit under the tool A storage tube 1 and then descends, the drill bit is separated from the tool A storage tube 1, the ATC tool changing mechanism 200 rotates 180 degrees to reach the processing tool head 100, the ATC tool changing mechanism 200 is lifted to the top, the processing tool head 100 and the drill bit are fixed to start working, and the ATC tool changing mechanism 200 rotates 90 degrees to be in a reset state;

[0038] Step 4: The tool A storage tube 1 is rotated to a horizontal position, and the tool B storage tube 2 is rotated to a vertical position. The rotation centers of the tool B storage tube 2 and the tool A storage tube 1 are both the support frame 3, and the position of the tool B storage tube 2 is the same as that of the tool A storage tube 1;

[0039] Step 5: After the processing tool head 100 has completed drilling the hole, the ATC tool changing mechanism 200 rotates 90 degrees, the ATC tool changing mechanism 200 is connected to the drill bit and the tap respectively, and the tool is removed according to the tool removal method of the support frame 3, and rotated 180 degrees;

[0040] Step 6: Reset the tool B storage tube 2 to horizontal, open the tool A storage tube 1, lift the ATC tool changing mechanism 200, install the tap and drill in the machining tool head 100 and the tool A storage tube 1 respectively, and complete the reset.

[0041] The advantage of the basic usage method over the existing structure is that the technical solution switches the rotation action of the matching tool change to a pushing action. The disc tool holder needs to ensure the rotation accuracy during the rotation process, so the motor controls the low rotation speed of the disc tool holder. The background technology has already explained that in the case of integrated drilling and tapping, the number of tools will double. Therefore, the diameter of the disc tool holder increases, and the tool change stroke increases. The pushing action is fixed, and the air-controlled push is used to rotate 90 degrees. The fast limit can be achieved by the block limit method, which is faster than the rotary tool change speed. And the rotary tool change frequency is reduced by half, and the diameter of the disc tool holder installed with the same tool is reduced by half, which further improves the tool change speed and convenience.

[0042] Advanced usage: Based on the basic usage, perform special processing on the control end and replace step 6 with step 7;

[0043] Step 7: Keep the tool B storage tube 2 in a vertical state, lift the ATC tool changing mechanism 200, install the drill bit in the tool B storage tube 2, install the tap in the tool A storage tube 1, and record the tool type fixed in the tool B storage tube 2 on the control end.

[0044] Advanced usage method: Compared with the basic usage method, the push action is reduced to the same as the existing technology, which further improves the switching speed. What needs to be changed is the background control system, which can continuously update the tool information in tool A storage tube 1 and tool B storage tube 2 through image processing, counters, etc. The advanced usage method is more effective for high-frequency double-knife cross operation.

[0045] In this embodiment: In order to implement the above method, the structure needs to be changed, and the specific changes are as follows:

[0046] (1) The tool B storage tube 2 is axially aligned and rotates through the same support frame 3.

[0047] Design principle: The ATC clamp is fixed, the rotation center of the ATC clamp is fixed, and the clamping point of the tool when the ATC rotates is fixed; the rotation center of the tool A storage tube 1 and the tool B storage tube 2 is fixed. When the rotation angles of the tool A storage tube 1 and the tool B storage tube 2 are consistent, the positions of the tool A storage tube 1 and the tool B storage tube 2 are fixed. In summary, the application of ATC is met and the reciprocating switching problem of the supporting components is met simultaneously. The final technical effect is to shorten the diameter of the drive disk 302, reduce the circular stroke of tool change and the number of circular motions.

[0048] The end of the tool A storage tube 1 is fixedly connected to a single ear 11, and the end of the tool B storage tube 2 is fixedly connected to a double ear 21. A torsion spring is arranged between the single ear 11 and the double ear 21. The maximum angle of relative rotation between the single ear 11 and the double ear 21 is ninety degrees. Under the static state of the torsion spring, the tool A storage tube 1 and the tool B storage tube 2 are axially collinear.

[0049] Design principle: The single ear 11 and the double ear 21 have the same rotation center. After the single ear 11 and the double ear 21 are provided with a torsion spring, the position stability of the tool A storage tube 1 and the tool B storage tube 2 is improved. Figure 5 Under the static state of the torsion spring, the tool A storage tube 1 and the tool B storage tube 2 are axially collinear, and the tool A storage tube 1 and the tool B storage tube 2 are horizontally distributed. The tool A storage tube 1 is restricted by the raised bevel 30211 and the extended contact rod 3051 and cannot rotate upward. The extended contact rod 3051 pushes the tool B storage tube 2 to rotate vertically, and the relative angle between the tool B storage tube 2 and the tool A storage tube 1 changes. The torsion spring elastic force is applied to the tool B storage tube 2 and the tool A storage tube 1, and the tool A storage tube 1 applies the elastic force to the raised bevel 30211 and the extended contact rod 3051. Keep the tool A storage tube 1 in a horizontal state and will not have a downward trend.

[0050] Design advantages: When the ATC is in operation and the torsion spring loses its elasticity to a certain extent, the tool B storage tube 2 will be in a vertical state and will simultaneously exert a supporting force on the tool A storage tube 1, ensuring that the tool A storage tube 1 always remains horizontal with the ATC rod body, avoiding collision with the tool, improving the stability of use and extending the service life.

[0051] Supplementary explanation: After the torsion spring loses its elasticity, the tool A storage tube 1 and the tool B storage tube 2 may bend downward in a stationary state. The downward bending will only occur when the axially colinear tool module 301 rotates to the bottom open part of the bidirectional co-positioned disc tool holder 300. The other parts of the bidirectional co-positioned disc tool holder 300 have an annular channel for storing the tool A storage tube 1 and the tool B storage tube 2, and the channel wall can support the tool A storage tube 1 and the tool B storage tube 2.

[0052] In summary: when the axially collinear tool module 301 is at the bottom, the tool A storage tube 1 and the tool B storage tube 2 are in working state. Before the ATC rotates, at least one of the tool A storage tube 1 and the tool B storage tube 2 is vertical. Therefore, during the ATC rotation process, when a part of the torsion spring fails in elasticity, one of the tool A storage tube 1 and the tool B storage tube 2 also always remains horizontal, except when the angle of the torsion spring failure reaches 90 degrees.

[0053] The two circular end surfaces of the driving disk 302 are rotatably connected to the pushing plate 305, and the bottom surface of the pushing plate 305 is fixedly connected to the extending contact rod 3051. In static state, the tool A storage tube 1 and the tool B storage tube 2 remain horizontal, and the extending contact rod 3051 contacts with the tool A storage tube 1 and the tool B storage tube 2.

[0054] Design principle: the push plate 305 is arranged on the surface of the driving disk 302 . There is a gap between the plane where the push plate 305 rotates to be vertical and the plane where the tool A storage tube 1 rotates to be vertical. Therefore, it needs to be supplemented by extending the contact rod 3051 .

[0055] Design advantages: The width of the single ear 11 and the double ear 21 are respectively smaller than the diameter of the tool A storage tube 1 and the tool B storage tube 2. The rotating ring 3021 itself has a width. The tool A storage tube 1 and the tool B storage tube 2 need to store tools, so the diameter cannot be reduced.

[0056] It is connected to the support frame 3 through a single ear 11 and a double ear 21. The length of the single ear 11 and the double ear 21 is greater than half of the axial length of the driving disk 302. The tool A storage tube 1, the tool B storage tube 2 and the rotating ring 3021 form an interlaced space, so that the diameter of the distribution ring formed by the tool A storage tube 1 and the tool B storage tube 2 is reduced.

[0057] The single ear 11 and the double ear 21 also overcome the diameter problem of the tool A storage tube 1 and the tool B storage tube 2, so that there will be no interference when the tool A storage tube 1 and the tool B storage tube 2 move 90 degrees relative to each other.

[0058] The rotation angle of the single ear 11 and the double ear 21 can be limited by a block so that when the piston push rod 303 is in a fast inflated and extended state, the relative angle between the tool A storage tube 1 and the tool B storage tube 2 is 90 degrees, ensuring that the pushed tool A storage tube 1 or tool B storage tube 2 is in a vertical state.

[0059] The push plate 305 is rotationally connected to the driving disk 302 via the elastic rotator 3052. When the push plate 305 is kept horizontal, the elastic member of the upper elastic rotator 3052 is in a normal state. When the push plate 305 is vertical, the elastic member of the elastic rotator 3052 is in a compressed state.

[0060] Design principle: please refer to Figure 5, there are right-angled surfaces between the tool A storage tube 1 and the single ear 11, and between the tool B storage tube 2 and the double ear 21, and the extended contact rod 3051 is a rod structure. Although the single ear 11, the double ear 21 and the extended contact rod 3051 are provided with slopes to make the extended contact rod 3051 slide more smoothly, when the tool A storage tube 1 and the tool B storage tube 2 are reset, during the external rotation of the tool A storage tube 1 and the tool B storage tube 2, the force direction of the extended contact rod 3051 has problems, and the extended contact rod 3051 is prone to slow reset or stuck problems. Therefore, when the push plate 305 is vertical, the elastic part of the elastic rotator 3052 is in a compressed state. When resetting, the extended contact rod 3051 can quickly pass through the slope area of ​​the single ear 11 and the double ear 21 with the help of the elastic part of the elastic rotator 3052 in the reset state.

[0061] Design advantages: Assuming that a torsion spring is used in the elastic rotator 3052, even if the torsion spring partially fails in elasticity, the torsion spring only needs to lift the elastic rotator 3052 through the slopes of the single ear 11 and the double ear 21. Therefore, the elastic rotator 3052 has a high service life and meets application requirements.

[0062] The circumferential surface of the driving disk 302 is rotatably connected to a rotating ring 3021, and the rotating ring 3021 is fixedly connected to two raised bevels 30211. Both the single ear 11 and the double ear 21 are provided with inclined surfaces matching the raised bevels 30211, and the support frame 3 is fixedly connected inside the groove formed by two adjacent raised bevels 30211.

[0063] Design principle and advantages: The rotating ring 3021 rotates on the circumference of the driving disk 302, the inner wall of the rotating ring 3021 has a toothed ring, the rotating ring 3021 and the driving disk 302 are rotatably connected through an annular bearing, a motor is installed inside the driving disk 302, the output end of the motor is connected to a gear, the gear extends to the outside of the circumference of the driving disk 302 and meshes with the inner toothed ring of the rotating ring 3021 to achieve driving. This driving method is a prior art and will not be described in detail here.

[0064] The single ear 11 and the double ear 21 are restricted by the support frame 3, and the single ear 11 and the double ear 21 always have a spacing with the rotating ring 3021. When the raised bevel 30211 is set, the support frame 3 can be installed in the groove body between the raised bevel 30211. The single ear 11 and the double ear 21 overcome the spacing error with the rotating ring 3021 and contact with the raised bevel 30211. At this time, the horizontal reset point of the tool A storage tube 1 and the tool B storage tube 2 is located at the rotating ring 3021, and the support frame 3 and the rotating ring 3021 can be fixed by screws or welding. The fixed node is strong and the limiting area is large, which increases the stability of use and service life.

[0065] The bottom surface of the extended contact rod 3051 is provided with a ball.

[0066] Design principle and advantages: When the extended contact rod 3051 pushes the tool A storage tube 1 and the tool B storage tube 2, relative sliding will occur, and the ball bearing can reduce friction.

[0067] Embodiment 2:

[0068] In this embodiment: Please refer to Figure 5-Figure 6 : The two circular end surfaces of the driving disk 302 are both equipped with piston push rods 303 that drive the push plate 305 to rotate ninety degrees. The piston push rods 303 control the air supply through the air supply controller 304. The sleeve end of the piston push rod 303 is provided with an air circuit controller 3031. The air circuit controller 3031 is respectively provided with an exhaust hole 3032 and an air supply hole 3033. The air supply hole 3033 is connected with the air supply pipe of the air supply controller 304, and the exhaust hole 3032 is exposed to the outside. A closed switcher 3034 is provided between the exhaust hole 3032 and the air supply hole 3033. The closed switcher 3034 controls the opening and closing states of the exhaust hole 3032 and the air supply hole 3033 to be always opposite.

[0069] The first embodiment illustrates the necessity and superiority of the torsion spring connection between the tool A storage tube 1 and the tool B storage tube 2. The second embodiment further simplifies the control structure based on the first embodiment.

[0070] Design principle: The reset, push, exhaust and ventilation control of the tool A storage tube 1 and the tool B storage tube 2 are simplified. The piston push rod 303 is a sleeve structure, and the piston push rod 303 is divided into a sleeve and a piston sliding rod. The air supply controller 304 has two valves, and the two valves correspond to the two air supply holes 3033. The air supply control of the two air supply holes 3033 is controlled by the controller.

[0071] Control principle: When one of the air supply holes 3033 is opened, the air circuit controller 3031 works, the air circuit controller 3031 closes the exhaust hole 3032 and opens the air supply hole 3033 at the same time, and the gas enters the piston push rod 303 through the air supply hole 3033. Under the action of air pressure, the piston push rod 303 extends to complete the pushing operation.

[0072] When resetting, the closed switch 3034 closes the air supply hole 3033, the gas in the air supply hole 3033 cannot enter the piston push rod 303, and the exhaust hole 3032 is in an open state.

[0073] The torsion spring between the tool A storage tube 1 and the tool B storage tube 2 is elastically reset, or the air supply controller 304 controls the other air supply hole 3033 to supply air, and the other piston push rod 303 is in a pushing state. During the reset process of the tool A storage tube 1 or the tool B storage tube 2, a reaction force is applied to the piston push rod 303 to promote the reset of the piston sliding rod and squeeze the internal gas through the exhaust hole 3032, thereby forming a cycle.

[0074] This method is established on the basis of embodiment 1, and can optimize the reciprocating control method. There is no need to adopt a double push rod control method. The elastic reset of the tool A storage tube 1 and the tool B storage tube 2 and the pushing action of the other piston push rod 303 are used to achieve rapid contraction of the extended piston push rod 303.

[0075] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A fully automatic drilling and tapping machine for a motor cylinder, comprising a machining tool head (100) and a tool holder, wherein an ATC tool changing mechanism (200) is arranged between the machining tool head (100) and the tool holder, and characterized in that: The tool holder is a bidirectional co-positioned disc-type tool holder (300), and the bidirectional co-positioned disc-type tool holder (300) comprises an axially co-linear tool module (301) and a driving disc (302), wherein a plurality of the axially co-linear tool modules (301) are distributed at equal angles on the rotating circumferential surface of the driving disc (302), and the axially co-linear tool module (301) is composed of a tool A storage tube (1), a tool B storage tube (2), and a support frame (3), wherein the tool A storage tube (1) and the tool B storage tube (2) are axially co-linear, and the tool A storage tube (1) and the tool B storage tube (2) are both rotatably connected to the central axis of the support frame (3), and the rotation centers of the tool A storage tube (1) and the tool B storage tube (2) are consistent; The end of the tool A storage tube (1) is fixedly connected to a single ear (11), and the end of the tool B storage tube (2) is fixedly connected to a double ear (21). A torsion spring is provided between the single ear (11) and the double ear (21). The maximum angle of relative rotation between the single ear (11) and the double ear (21) is ninety degrees. When the torsion spring is in a static state, the tool A storage tube (1) and the tool B storage tube (2) are axially collinear.

2. The fully automatic drilling and tapping machine for a motor barrel according to claim 1, characterized in that: The two circular end surfaces of the driving disk (302) are rotatably connected to a push plate (305), and the bottom surface of the push plate (305) is fixedly connected to an extended contact rod (3051). In a static state, the tool A storage tube (1) and the tool B storage tube (2) remain horizontal, and the extended contact rod (3051) is in contact with the tool A storage tube (1) and the tool B storage tube (2).

3. The fully automatic drilling and tapping machine for a motor barrel according to claim 2, characterized in that: The pushing plate (305) is rotationally connected to the driving disk (302) via an elastic rotator (3052). When the pushing plate (305) is kept horizontal, the elastic part of the elastic rotator (3052) is in a normal state. When the pushing plate (305) is vertical, the elastic part of the elastic rotator (3052) is in a compressed state.

4. The fully automatic drilling and tapping machine for a motor barrel according to claim 1, characterized in that: The two circular end surfaces of the driving disk (302) are both equipped with piston push rods (303) for driving the pushing plate (305) to rotate ninety degrees, and the piston push rods (303) control the air supply through the air supply controller (304).

5. The fully automatic drilling and tapping machine for a motor barrel according to claim 4, characterized in that: The sleeve end of the piston push rod (303) is provided with an air circuit controller (3031), and the air circuit controller (3031) is respectively provided with an exhaust hole (3032) and an air supply hole (3033), and the air supply hole (3033) is connected to the air supply pipe of the air supply controller (304), and the exhaust hole (3032) is exposed to the outside, and a closed switch (3034) is provided between the exhaust hole (3032) and the air supply hole (3033), and the closed switch (3034) controls the opening and closing states of the exhaust hole (3032) and the air supply hole (3033) to be always opposite.

6. The fully automatic drilling and tapping machine for a motor barrel according to claim 1, characterized in that: The circumferential surface of the driving disk (302) is rotatably connected to a rotating ring (3021), and the rotating ring (3021) is fixedly connected to two raised bevels (30211), and the single ear (11) and the double ear (21) are both provided with inclined surfaces that match the raised bevels (30211).

7. The fully automatic drilling and tapping machine for a motor barrel according to claim 6, characterized in that: The support frame (3) is fixedly connected inside the groove body formed by two adjacent raised oblique edges (30211).

8. The fully automatic drilling and tapping machine for a motor barrel according to claim 1, characterized in that: The length of the single ear (11) and the double ear (21) is greater than half of the axial length of the driving disc (302).

9. The fully automatic drilling and tapping machine for a motor barrel according to claim 1, characterized in that: The bottom surface of the extended contact rod (3051) is provided with a ball bearing.

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