A boring machine for processing a piston pin hole

Abstract

The application relates to the technical field of piston pin holes, and discloses a boring machine for piston pin hole machining, which comprises a base, the inner surface of the base is fixedly connected with a linear motor, the moving end of the linear motor is fixedly connected with a moving seat, the right side surface of the moving seat is fixedly connected with a tool bit, the tool bit is used for cutting the piston, the upper surface of the base is fixedly connected with a fixed seat, in the application, a limiting arc plate presses the piston, the surface of the piston of different sizes can be conveniently attached, a sliding seat reset drives an abutting arc plate to attach and clamp the piston, the abutting arc plate and the limiting arc plate can be matched to adapt to pistons of different sizes and quickly fix the pistons, the applicability and convenience are improved, after a pressing cylinder is attached to the piston, the piston is clamped between the fixed seat and the moving seat, the piston stability is improved, when a limiting ring is away from the moving seat, a spring is pulled, at the moment, the elastic force generated by the spring is used for pressing the piston, and the piston stability is further improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of piston pin hole, in particular to a boring machine for piston pin hole machining. BACKGROUND

[0002] The piston pin hole is the connecting part of the engine piston and the connecting rod, and its machining precision directly affects the performance of the engine. When machining the pin hole with the traditional boring machine, there are problems such as insufficient precision stability and low efficiency. Although the existing technology can realize the machining of boring and chamfering of the piston, thereby improving the machining efficiency of the piston, the installation and unloading of the piston are not convenient and safe, which affects the overall work efficiency.

[0003] The patent with publication number CN220717826U discloses a composite boring machine for piston pin hole machining. The patent is installed on the workbench through the chip collecting device, the number of sliding blocks and first motors is multiple, multiple sliding blocks and multiple first motors are symmetrically distributed along the axis of the workbench, a sliding groove is provided on the workbench, the sliding blocks are slidingly installed on the workbench through the driving assembly and located in the sliding groove, the first motors are fixedly installed on the sliding blocks, the chamfering cutter is fixedly installed on the output shaft of the first motor on the left side, the boring cutter is fixedly installed on the output shaft of the first motor on the right side, the clamping assembly is installed on the workbench, after the piston is clamped and adjusted by the clamping assembly, the boring cutter and the chamfering cutter are driven by the first motor to machine the two ends of the piston, then the clamping assembly drives the piston to rotate by 180 degrees, the left first motor is started to drive the chamfering cutter to machine the piston, thereby simultaneously realizing the machining of boring and chamfering of the piston, and improving the machining efficiency of the piston. Although the patent solves the above problems, it still has the problem that the installation and unloading of the piston are not convenient and safe, so a boring machine for piston pin hole machining is proposed to solve the above problems. SUMMARY

[0004] The technical problem to be solved by the present application is to provide a boring machine for piston pin hole machining in view of the deficiencies of the prior art.

[0005] To solve the above technical problems, the technical scheme adopted by the present application is as follows: a boring machine for piston pin hole machining, comprising:

[0006] A base, the inner surface of the base is fixedly connected with a linear motor, the moving end of the linear motor is fixedly connected with a moving seat, the right side surface of the moving seat is fixedly connected with a tool bit, the tool bit is used for cutting the piston, and the upper surface of the base is fixedly connected with a fixed seat;

[0007] An unloading device, the unloading device is arranged above the base, and is used for quickly unloading the piston after machining the hole;

[0008] A vibration damping device is arranged above the base and used for damping the vibration generated by the moving seat during the machining of the hole.

[0009] As a further technical scheme, the base comprises:

[0010] A sliding seat is slidingly connected to the upper surface of the base, and an abutting arc plate is fixedly connected to the upper arc surface of the sliding seat and used for positioning the bottom of the piston.

[0011] A limiting arc plate is slidingly connected to the left side of the fixed seat and used for positioning the top of the piston, and a handle is fixedly connected to the upper arc surface of the limiting arc plate, and a sliding block one is fixedly connected to the right side of the limiting arc plate.

[0012] As a further technical scheme, the base further comprises:

[0013] An abutting block is fixedly connected to the upper surface of the base.

[0014] A sliding block two is fixedly connected to the lower surface of the sliding seat.

[0015] A sleeve is fixedly connected to the inner surface of the moving seat, and a pressing cylinder is slidingly connected to the inner surface of the sleeve, and a limiting ring is fixedly connected to the left end of the circumferential surface of the pressing cylinder.

[0016] As a further technical scheme, the moving seat and the upper surface of the base are slidingly connected, the sliding block one and the inner surface of the fixed seat are slidingly connected, and an elastic telescopic rod one is arranged between the sliding block one and the inner surface of the fixed seat, the sliding block two and the inner surface of the base are slidingly connected, an elastic telescopic rod two is arranged between the sliding seat and the abutting block, and a spring is arranged between the right side of the limiting ring and the left side of the moving seat.

[0017] As a further technical scheme, the unloading device comprises:

[0018] A communication pipe is movably connected to the inner surface of the pressing cylinder, and a suction disc is fixedly connected to the right end of the communication pipe and used for adsorbing the piston.

[0019] A hollow screw is threadedly connected to the left end inner surface of the communication pipe and used for quickly fixing the communication pipe and the pressing cylinder.

[0020] As a further technical scheme, the unloading device further comprises:

[0021] An air suction hose is used for air suction or air supply of the communication pipe, and the top end of the air suction hose is sleeved with the inner surface of the hollow screw.

[0022] The connecting piece is fixedly connected to the left side of the upper surface of the base, and the front and rear sides of the connecting piece are hingedly connected with a first connecting plate.

[0023] The roller is rotationally connected to the inner surface of the first connecting plate, and is used for limiting the air suction hose.

[0024] The sliding plate is fixedly connected to the circumferential surface of the pressing cylinder.

[0025] As a further technical solution, the hollow screw and the left side surface of the limiting ring are in abutment, the air suction hose and the circumferential surface of the roller are in abutment, the sleeve circumferential surface is provided with a through groove, and the inner surface of the through groove is in sliding connection with the sliding plate.

[0026] As a further technical solution, the vibration damping device comprises:

[0027] The limiting frame is fixedly connected to the inner surface of the moving seat, and the inner surface of the limiting frame is fixedly connected with a connecting column at the top.

[0028] The support arm is hingedly connected to the circumferential surface of the connecting column at the top end, is used for supporting the moving seat, and is provided with a clamping groove at the bottom.

[0029] As a further technical solution, the vibration damping device further comprises:

[0030] The connecting rod is hingedly connected to the inner surface of the clamping groove, and one end of the connecting rod close to the limiting frame is fixedly connected with a friction arc plate, which is used for reducing the vibration generated by the tool head and the moving seat.

[0031] The second connecting plate is fixedly connected to the lower surface of the sliding plate, and the lower surface of the second connecting plate is fixedly connected with clamping blocks at both sides, which are used for locking the support arm.

[0032] As a further technical solution, the hinged portion of the support arm and the connecting column is provided with a torsion spring, the friction arc plate and the inner surface of the limiting frame are in abutment, the friction arc plate and the inner surface of the clamping groove are in abutment, the hinged portion of the connecting rod and the clamping groove is provided with a torsion spring, the top end of the limiting frame is provided with a positioning groove, and the inner surface of the positioning groove is in clamping connection with the clamping block, and the top end of the support arm is provided with a positioning groove, and the inner surface of the positioning groove is in clamping connection with the clamping block.

[0033] The above technical solution can bring the following beneficial effects:

[0034] 1. The piston pin hole processing boring machine, the limit arc plate moves down and presses the piston, which is convenient to adhere to the surface of pistons of different sizes, the sliding seat is reset by the influence of the elastic expansion rod two and drives the contact arc plate to adhere and clamp the piston, through the cooperation of the contact arc plate and the limit arc plate, it is convenient to adapt to pistons of different sizes and quickly fix them, which improves the applicability and operation convenience of the device, the pressing cylinder adheres to the side of the piston away from the fixed seat and clamps it between the fixed seat and the moving seat, thereby improving the stability of the piston during fixing, and further improving the pin hole effect, when the limit ring is away from the moving seat, the tension spring is stretched, so that the elastic force of the spring presses the piston, further improving the stability of the piston during fixing.

[0035] 2. The piston pin hole processing boring machine, the suction cup drives the piston to quickly separate from between the contact arc plate and the limit arc plate, the suction cup is separated from the piston by releasing air through the communication pipe, and then the piston is quickly unloaded on the base, improving the processing efficiency, the hollow screw is rotated and inserted into the communication pipe from the left end, and then the communication pipe is quickly installed into the pressing cylinder, and vice versa, which facilitates the disassembly of the communication pipe and the suction cup for inspection and replacement, ensuring long-term processing efficiency.

[0036] 3. The piston pin hole processing boring machine, the communication pipe is supplied with air and exhausted by the air suction hose, which facilitates the movement of the moving seat and improves the stability of the device operation, the air suction hose is inserted between the two rollers below the connecting plate one, and the air suction hose is limited by the connecting plate one and the roller to avoid winding and knotting, and the roller can avoid abrasion of the air suction hose during extension and contraction, further improving the stability of the device operation under the premise of facilitating unloading.

[0037] 4. The piston pin hole processing boring machine, the outer arc surface of the friction arc plate is in contact with the upper surface of the base, when the tool head is started and affects the moving seat to make it vibrate, the vibration force is transmitted from the support arm to the friction arc plate, so that the friction arc plate and the upper surface of the base are rubbed to reduce vibration, so that the moving seat is more stable when the tool head works, and the accuracy of the pin hole is improved.

[0038] 5. The piston pin hole processing boring machine, the clamping block is separated from the positioning groove at the top end of the support arm, so that the support arm loses the limit, at this time the support arm is automatically popped out of the limit frame by the influence of the torsional spring arranged at the hinged part of the support arm and the connecting column, the clamping block is inserted into the top end of the support arm, so as to lock the support arm, at this time the friction arc plate is squeezed by the limit frame and the support arm and cannot be popped out, thereby the device is quickly stored, improving the use convenience of the device. BRIEF DESCRIPTION OF DRAWINGS

[0039] Figure 1 It is a whole three-dimensional structure schematic diagram of the present application;

[0040] Figure 2 It is a front side three-dimensional half cut structure schematic diagram of the base of the present application;

[0041] Figure 3 It is the front side of the discharge device of the application three-dimensional half cut structure schematic view;

[0042] Figure 4 It is the front side of the discharge device of the application three-dimensional half cut structure schematic view; Figure 3 It is the front side of the discharge device of the application three-dimensional half cut structure schematic view;

[0043] Figure 5 It is the front side of the discharge device of the application three-dimensional half cut structure schematic view; Figure 3 It is the front side of the discharge device of the application three-dimensional half cut structure schematic view;

[0044] Figure 6 It is the front side of the discharge device of the application three-dimensional half cut structure schematic view;

[0045] Figure 7 It is the front side of the discharge device of the application three-dimensional half cut structure schematic view; Figure 6 It is the front side of the discharge device of the application three-dimensional half cut structure schematic view.

[0046] In the figure: 1, base; 2, linear motor; 3, moving seat; 4, cutter head; 5, fixed seat; 6, discharge device; 7, damping device; 8, sliding seat; 9, contact arc plate; 10, limit arc plate; 11, handle; 12, sliding block one; 13, contact block; 14, sliding block two; 15, sleeve; 16, pressing cylinder; 17, limit ring; 61, communication pipe; 62, suction cup; 63, hollow screw; 64, air suction hose; 65, connecting piece; 66, connecting plate one; 67, roller; 68, sliding plate; 71, limit frame; 72, connecting column; 73, support arm; 74, clamping groove; 75, connecting rod; 76, friction arc plate; 77, connecting plate two; 78, clamping block. DETAILED DESCRIPTION

[0047] The technical solutions in the embodiments of the application will be clearly and completely described below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the application.

[0048] Please refer to Figures 1-7An embodiment of the present application is: a boring machine for processing piston pin hole, comprising base 1, the inner surface of base 1 is fixedly connected with linear motor 2, the moving end of linear motor 2 is fixedly connected with moving seat 3, the right side surface of moving seat 3 is fixedly connected with tool bit 4, tool bit 4 is used for cutting piston, the upper surface of base 1 is fixedly connected with fixed seat 5, unloading device 6 is arranged above base 1, unloading device 6 is used for quickly unloading piston after processing hole, vibration damping device 7 is arranged above base 1, vibration damping device 7 is used for reducing vibration generated by moving seat 3 in the process of processing hole, limiting arc plate 10 moves downward and presses piston, which is convenient for surface adhesion with pistons of different sizes, sliding seat 8 is reset under the influence of elastic expansion rod two and drives abutting arc plate 9 to adhere and clamp piston, through the cooperation of abutting arc plate 9 and limiting arc plate 10, pistons of different sizes are conveniently adapted and quickly fixed, the applicability and operation convenience of the device are improved, base 1 comprises sliding seat 8, sliding seat 8 is slidingly connected on the upper surface of base 1, the upper arc surface of sliding seat 8 is fixedly connected with abutting arc plate 9, abutting arc plate 9 is used for positioning the bottom of piston, limiting arc plate 10 is slidingly connected on the left side surface of fixed seat 5, limiting arc plate 10 is used for positioning the top of piston, the upper arc surface of limiting arc plate 10 is fixedly connected with handle 11, the right side surface of limiting arc plate 10 is fixedly connected with sliding block one 12, base 1 further comprises abutting block 13, abutting block 13 is fixedly connected on the upper surface of base 1 on the front and back sides, sliding block two 14 is fixedly connected on the lower surface of sliding seat 8, sleeve 15 is fixedly connected on the inner surface of moving seat 3, pressing cylinder 16 is slidingly connected on the inner surface of sleeve 15, limiting ring 17 is fixedly connected on the left end of the circumferential surface of pressing cylinder 16, moving seat 3 and the upper surface of base 1 are slidingly connected, sliding block one 12 and the inner surface of fixed seat 5 are slidingly connected, and elastic expansion rod one is arranged between sliding block one 12 and the inner surface of fixed seat 5, sliding block two 14 and the inner surface of base 1 are slidingly connected, elastic expansion rod two is arranged between sliding seat 8 and abutting block 13, spring is arranged between the right side surface of limiting ring 17 and the left side surface of moving seat 3, after pressing cylinder 16 adheres to the side of piston away from fixed seat 5, piston is clamped between fixed seat 5 and moving seat 3, so that the stability of piston during fixing is improved, and the effect of pin hole is improved, when limiting ring 17 is away from moving seat 3, spring is stretched, so that the elastic force of spring is pressed against piston, further improving the stability of piston during fixing.

[0049] Working principle: one end of the piston is placed between the abutting arc plate 9 and the limiting arc plate 10 for preliminary fixation, at this time start the linear motor 2, the linear motor 2 drives the moving seat 3 and the cutter head 4 to move and close to the fixed seat 5, then start the cutter head 4 to punch the hole of the piston, when fixing the piston, hold the handle 11, lift the limiting arc plate 10 upward through the handle 11, the limiting arc plate 10 slides in the sliding groove on the fixed seat 5 through the sliding block 12 and extrudes the elastic expansion rod 1, then place the piston on the two abutting arc plates 9, then release the handle 11, at this time the elastic reset action of the elastic expansion rod pushes the sliding block 12 to slide downward and reset, the sliding block 12 drives the limiting arc plate 10 to move downward and press the piston, which is convenient to fit with the surface of the piston of different sizes, and after the piston is placed on the abutting arc plate 9, the abutting arc plate 9 is offset to both sides of the base 1 by the extrusion of the piston of different sizes, and then slides on the base 1 through the sliding seat 8 and the sliding block 14 and extrudes the elastic expansion rod 2, after releasing the piston, the sliding seat 8 resets and drives the abutting arc plate 9 to fit and clamp the piston, through the cooperation of the abutting arc plate 9 and the limiting arc plate 10, it is convenient to adapt to the piston of different sizes and fix it quickly, which improves the applicability and operation convenience of the device, when the moving seat 3 approaches the piston, the sleeve 15 approaches the piston, the sleeve 15 drives the pressing cylinder 16 to approach the piston, when the pressing cylinder 16 fits with the side of the piston away from the fixed seat 5, it is clamped between the fixed seat 5 and the moving seat 3, thereby improving the stability when fixing the piston, and further improving the punching effect, after the pressing cylinder 16 is resisted by the piston, it slides in the sleeve 15 and drives the limiting ring 17 to move away from the moving seat 3, when the limiting ring 17 moves away from the moving seat 3, the spring is stretched, so that the elastic force of the spring presses the piston, further improving the stability when fixing the piston.

[0050] Please refer to Figures 1-7On the basis of the above-embodiment, in another embodiment of the present application, the discharging device 6 comprises a communication pipe 61 movably connected to the inner surface of the pressing cylinder 16, the right end of the communication pipe 61 is fixedly connected with a suction cup 62 for adsorbing the piston, a hollow screw 63 is threadedly connected to the left end inner surface of the communication pipe 61, the hollow screw 63 is used for quickly fixing the communication pipe 61 and the pressing cylinder 16, the suction cup 62 drives the piston to quickly separate from the contact arc plate 9 and the limiting arc plate 10, the communication pipe 61 is deflated to separate the suction cup 62 from the piston, and then the piston is quickly discharged onto the base 1, thereby improving the processing efficiency, the hollow screw 63 is rotated and inserted into the communication pipe 61 from the left end, and then the communication pipe 61 is quickly installed into the pressing cylinder 16, and vice versa, which facilitates the disassembly, inspection and replacement of the communication pipe 61 and the suction cup 62, thereby ensuring long-term processing efficiency, the discharging device 6 further comprises a suction hose 64 for air suction or air supply of the communication pipe 61, the top end of the suction hose 64 is sleeved on the inner surface of the hollow screw 63, a connecting piece 65 is fixedly connected to the left side of the upper surface of the base 1, two connecting plates one 66 are hingedly connected to the front and rear sides of the connecting piece 65, a roller 67 is rotatably connected to the inner surface of the connecting plate one 66, the roller 67 is used for limiting the suction hose 64, a sliding plate 68 is fixedly connected to the circumferential surface of the pressing cylinder 16, the hollow screw 63 abuts against the left side of the limiting ring 17, the suction hose 64 abuts against the circumferential surface of the roller 67, a through slot is formed in the circumferential surface of the sleeve 15, and the through slot is slidably connected with the sliding plate 68, the suction hose 64 is used for air supply and air suction of the communication pipe 61, which facilitates the movement of the moving seat 3 and improves the stability of the device operation, the suction hose 64 is inserted between the two rollers 67 from below the connecting plate one 66, the connecting plate one 66 and the roller 67 can limit the suction hose 64 to avoid winding and knotting, and the roller 67 can avoid abrasion of the suction hose 64 during extension and contraction, thereby further improving the stability of the device operation under the premise of facilitating discharging.

[0051] Working principle: when the pressing cylinder 16 is close to the piston, the communication pipe 61 and the suction cup 62 are close to the piston, when the suction cup 62 is attached to the piston, the suction cup 62 generates negative pressure through the communication pipe 61 and absorbs the piston, and then when the pin hole is completed, the linear motor 2 drives the moving seat 3 away from the fixed seat 5, the moving seat 3 drives the communication pipe 61 and the suction cup 62 away from the fixed seat 5 through the sleeve 15 and the pressing cylinder 16, the suction cup 62 drives the piston to quickly separate from the clamping and limiting of the abutting arc plate 9 and the limiting arc plate 10, at this time, the suction cup 62 is separated from the piston by releasing the air through the communication pipe 61, and then the piston is quickly unloaded on the base 1, which improves the processing efficiency, inserts the communication pipe 61 into the pressing cylinder 16 from the right end, rotates and inserts the hollow screw 63 into the communication pipe 61 from the left end, and then quickly installs the communication pipe 61 into the pressing cylinder 16, and vice versa, which is convenient for disassembling the communication pipe 61 and the suction cup 62 for inspection and replacement, ensuring long-term processing efficiency, and the communication pipe 61 is connected with the hollow screw 63 through the air suction hose 64, which is convenient for moving the moving seat 3 and improves the stability of the device operation. Before connecting the air suction hose 64 with the hollow screw 63, the air suction hose 64 is inserted between the two rollers 67 from below the connecting plate one 66, which can limit the air suction hose 64 through the connecting plate one 66 and the roller 67, avoid winding and knotting, and the roller 67 can avoid abrasion when the air suction hose 64 stretches and contracts, which further improves the stability of the device operation under the premise of facilitating unloading.

[0052] Please refer to Figures 1-7On the basis of the above-mentioned embodiment, in another embodiment of the present application, the vibration damping device 7 comprises a limiting frame 71 fixedly connected to the inner surface of the moving seat 3, the inner surface top of the limiting frame 71 is fixedly connected with a connecting column 72, the top end of the supporting arm 73 is hinged with the circumferential surface of the connecting column 72, the supporting arm 73 is used for supporting the moving seat 3, the bottom of the supporting arm 73 is provided with a clamping groove 74, the outer arc surface of the friction arc plate 76 is in abutment with the upper surface of the base 1, when the cutter head 4 is started and affects the moving seat 3 to make it vibrate, the vibrating force is conducted from the supporting arm 73 to the friction arc plate 76, so that the friction arc plate 76 is rubbed with the upper surface of the base 1 to reduce the vibration, so that the moving seat 3 is more stable when the cutter head 4 works, thereby improving the accuracy of the pin hole, the vibration damping device 7 further comprises a connecting rod 75 hinged in the inner surface of the clamping groove 74, one end of the connecting rod 75 close to the limiting frame 71 is fixedly connected with the friction arc plate 76, the friction arc plate 76 is used for reducing the vibration generated by the cutter head 4 and the moving seat 3, the connecting plate two 77 is fixedly connected to the lower surface of the sliding plate 68, the lower surface of the connecting plate two 77 is fixedly connected with the clamping block 78 on both sides, the clamping block 78 is used for locking the supporting arm 73, the hinged place of the supporting arm 73 and the connecting column 72 is provided with a torsional spring, the friction arc plate 76 and the inner surface of the limiting frame 71 are in abutment, the friction arc plate 76 and the inner surface of the clamping groove 74 are in abutment, the hinged place of the connecting rod 75 and the clamping groove 74 is provided with a torsional spring, the top end of the limiting frame 71 is provided with a positioning slot, and the inner surface of the positioning slot is clamped with the clamping block 78, the top end of the supporting arm 73 is provided with a positioning slot, and the inner surface of the positioning slot is clamped with the clamping block 78, the clamping block 78 is extracted from the positioning slot provided in the top end of the supporting arm 73, so that the supporting arm 73 loses the limiting, at this time the supporting arm 73 is automatically popped out of the limiting frame 71 by the torsional spring arranged at the hinged place of the supporting arm 73 and the connecting column 72, the clamping block 78 is inserted into the top end of the supporting arm 73, so as to lock the supporting arm 73, at this time the friction arc plate 76 cannot be popped out by being pressed by the limiting frame 71 and the supporting arm 73, thereby the device is quickly stored, and the use convenience of the device is improved.

[0053] Working principle: the bottom end of the supporting arm 73 is extracted from the limiting frame 71, the supporting arm 73 rotates along the hinge with the connecting column 72, and then a certain angle is generated with the moving seat 3, at this time the connecting rod 75 hinged in the clamping groove 74 is rotated under the influence of the torsional spring torque and drives the friction arc plate 76 to pop out the bottom end of the supporting arm 73, after the friction arc plate 76 pops out, the outer arc surface thereof is in contact with the upper surface of the base 1, when the cutter head 4 is started and affects the moving seat 3 to make it vibrate, the vibration force is conducted from the supporting arm 73 to the friction arc plate 76, so that the friction arc plate 76 is rubbed with the upper surface of the base 1 to reduce the vibration, so that the moving seat 3 is more stable when the cutter head 4 works, thereby improving the accuracy of the pin hole, the suction cup 62 is in contact with the piston and is extruded to drive the communication pipe 61 and the pressing cylinder 16 to move backward, the pressing cylinder 16 drives the sliding plate 68 to slide left on the inner surface of the through slot of the sleeve 15, the sliding plate 68 drives the connecting plate two 77 and the clamping block 78 to move left, the clamping block 78 moves left to separate from the positioning groove at the top end of the supporting arm 73 and the limiting frame 71, so that the supporting arm 73 loses the limit, at this time the supporting arm 73 is automatically popped out of the limiting frame 71 under the influence of the torsional spring arranged at the hinge with the connecting column 72, and the pin hole is completed, the friction arc plate 76 is rotated into the supporting arm 73, and then the supporting arm 73 is rotated into the limiting frame 71, at this time the linear motor 2 drives the moving seat 3 to move away from the piston, the suction cup 62 and the communication pipe 61 lose the contact, so that the pressing cylinder 16 and the limiting ring 17 lose the limitation and are reset under the influence of the spring elastic force, the pressing cylinder 16 resets the sliding plate 68 and the connecting plate two 77, and the connecting plate two 77 drives the clamping block 78 to insert into the limiting frame 71 and the top end of the supporting arm 73, so as to lock the supporting arm 73, at this time the friction arc plate 76 is extruded by the limiting frame 71 and the supporting arm 73 and cannot be popped out, thereby the device is quickly stored, and the use convenience of the device is improved.

[0054] The application provides a boring machine for processing a piston pin hole, and there are many methods and approaches to specifically realize the technical scheme. The above description is only a preferred embodiment of the application, and it should be pointed out that ordinary technical personnel in the technical field can make some improvements and refinements without departing from the principle of the application, and these improvements and refinements should also be regarded as the protection scope of the application. The components not explicitly described in the embodiment can be realized by the existing technology.

Claims

1. A boring machine for machining piston pin holes, characterized in that, Include: The inner surface of the base (1) is fixedly connected with a linear motor (2), the moving end of the linear motor (2) is fixedly connected with a moving seat (3), the right side surface of the moving seat (3) is fixedly connected with a tool bit (4), the tool bit (4) is used for cutting the piston, the upper surface of the base (1) is fixedly connected with a fixed seat (5); The unloading device (6) is arranged above the base (1), and the unloading device (6) is used for quickly unloading the piston after processing the hole; The damping device (7) is arranged above the base (1), and the damping device (7) is used for reducing the vibration generated by the moving seat (3) during processing the hole; The sleeve (15) is fixedly connected to the inner surface of the moving seat (3), the sleeve (15) is fixedly connected to the inner surface of the sleeve (15), the sleeve (15) is fixedly connected to the inner surface of the sleeve (15), the sleeve (15) is fixedly connected to the inner surface of the sleeve (15), the sleeve (15) is fixedly connected to the inner surface of the sleeve (15), and the sleeve (15) is fixedly connected to the inner surface of the sleeve (15). The circumferential surface of the pressing cylinder (16) is fixedly connected with a limiting ring (17), the moving seat (3) and the upper surface of the base (1) are slidably connected, and the limiting ring (17) is arranged between the right side surface of the limiting ring (17) and the left side surface of the moving seat (3). Spring; The sliding plate (68) is fixedly connected to the circumferential surface of the pressing cylinder (16), the circumferential surface of the sleeve (15) is provided with a through groove, and the inner surface of the through groove is slidably connected with the sliding plate (68); The damping device (7) comprises: The limiting frame (71) is fixedly connected to the inner surface of the moving seat (3), and the inner surface of the limiting frame (71) is fixedly connected with a connecting column (72); The top end of the supporting arm (73) is hinged to the circumferential surface of the connecting column (72), the supporting arm (73) is used for supporting the moving seat (3), and the bottom of the supporting arm (73) is provided with a clamping groove (74); The damping device (7) further comprises: The connecting rod (75) is hinged to the inner surface of the clamping groove (74), one end of the connecting rod (75) close to the limiting frame (71) is fixedly connected with a friction arc plate (76), and the friction arc plate (76) is used for reducing the vibration generated by the tool bit (4) and the moving seat (3); The second connecting plate (77) is fixedly connected to the lower surface of the sliding plate (68), the lower surface of the second connecting plate (77) is fixedly connected with a clamping block (78), and the clamping block (78) is used for locking the supporting arm (73); The hinge between the supporting arm (73) and the connecting column (72) is provided with a torsion spring, the inner surface of the friction arc plate (76) and the limiting frame (71) abuts, the inner surface of the friction arc plate (76) and the clamping groove (74) abuts, the hinge between the connecting rod (75) and the clamping groove (74) is provided with a torsion spring, the top end of the limiting frame (71) is provided with a positioning groove, and the inner surface of the positioning groove is clamped with the clamping block (78). The top end of the supporting arm (73) is provided with a positioning groove, and the inner surface of the positioning groove is clamped with the clamping block (78).

2. A boring machine for machining a piston pin bore as defined in claim 1, characterized in that: The base (1) comprises: The sliding seat (8) is slidably connected to the upper surface of the base (1), and the upper arc surface of the sliding seat (8) is fixedly connected with the abutting arc plate (9) for positioning the bottom of the piston. The limiting arc plate (10) is slidably connected to the left side of the fixed seat (5), and is used for positioning the top of the piston, and the upper arc surface of the limiting arc plate (10) is fixedly connected with the handle (11), and the right side of the limiting arc plate (10) is fixedly connected with the sliding block one (12).

3. A boring machine for machining piston pin bores according to claim 2, characterized in that: The base (1) further comprises: The abutting block (13) is fixedly connected to the upper surface of the base (1) on the front and back sides; The sliding block two (14) is fixedly connected to the lower surface of the sliding seat (8).

4. A boring machine for machining piston pin bores according to claim 3, characterized in that: The sliding block one (12) and the inner surface of the fixed seat (5) are slidably connected, and the elastic expansion rod one is arranged between the sliding block one (12) and the inner surface of the fixed seat (5), the sliding block two (14) and the inner surface of the base (1) are slidably connected, and the elastic expansion rod two is arranged between the sliding seat (8) and the abutting block (13).

5. A boring machine for machining piston pin bores according to claim 4, characterized in that: The unloading device (6) comprises: The communication pipe (61) is movably connected to the inner surface of the pressing cylinder (16), and the right end of the communication pipe (61) is fixedly connected with the suction disc (62) for adsorbing the piston; The hollow screw (63) is threadedly connected with the inner surface of the left end of the communication pipe (61), and is used for quickly fixing the communication pipe (61) and the pressing cylinder (16).

6. A boring machine for machining a piston pin bore as defined in claim 5, characterized in that: The unloading device (6) further comprises: The air suction hose (64) is used for air suction or air supply of the communication pipe (61), and the top end of the air suction hose (64) is sleeved on the inner surface of the hollow screw (63); The connecting piece (65) is fixedly connected to the left side of the upper surface of the base (1), and the front and back sides of the connecting piece (65) are hingedly connected with the connecting plate one (66); The roller (67) is rotatably connected to the inner surface of the connecting plate one (66), and is used for limiting the air suction hose (64).

7. A boring bar for machining piston pin bores according to claim 6, characterized in that: The hollow screw (63) and the left side of the limiting ring (17) are abutted, and the air suction hose (64) and the circumferential surface of the roller (67) are abutted.

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