Pin hole machining device suitable for pistons of different specifications

Abstract

The utility model belongs to the technical field of piston pin hole machining, and discloses a pin hole machining device suitable for pistons of different specifications, which comprises a clamping disc, a supporting column is fixedly arranged on the lower surface of the clamping disc, a connecting flange is fixedly arranged on the outer side surface of the lower end of the clamping disc, and a clamping mechanism is arranged in the clamping disc. By means of the synchronous centripetal movement mode of the clamp, the clamping disc can clamp pistons with different diameters. According to the pin hole machining device suitable for the pistons of the different specifications, synchronous centripetal movement of a clamp is achieved through components such as a sliding rod, a displacement rod and clamping plates matched with the displacement rod, the clamping plates are in threaded connection with the displacement rod and in sliding connection with the sliding rod and are arranged on the surface of a clamping disc at equal angles, and the upper ends of the clamping plates are designed to be arc-shaped; pistons with different diameters can be stably clamped, the mode that a traditional machining device designs a clamp for pistons with specific specifications is abandoned, and the clamp does not need to be frequently replaced.

Description

TECHNICAL FIELD

[0001] The utility model relates to piston pinhole processing technical field, concretely is a pinhole processing device of different specifications of piston. BACKGROUND

[0002] In the piston manufacturing industry, as the key component of the engine, the processing quality of the pinhole of the piston directly concerns the performance and reliability of the engine. With the development of industry, the demand for pistons is increasingly diversified. Different specifications of pistons are widely used in various engines. However, the existing piston pinhole processing device has exposed many problems in actual application and needs to be improved. At present, most piston pinhole processing devices have poor universality. Many processing equipment is tailor-made according to specific specifications of pistons. When facing pistons with different diameters, lengths or structures, it is not up to the task. If different specifications of pistons are to be processed, special fixtures need to be replaced. This process is not only complicated and involves the disassembly and installation of many parts, but also takes a long time, frequently interrupts the production line and seriously affects the production efficiency. For example, in some small and medium-sized piston manufacturing enterprises, due to the diversity of piston specifications in orders, frequent replacement of fixtures leads to a significant increase in equipment downtime and prolongs the production cycle, which cannot meet the customer's demand in time. To solve the problem of universality, some enterprises choose to purchase multiple sets of processing equipment of different specifications to process different types of pistons. However, this method ensures the feasibility of processing to some extent, but brings high cost and significantly increases the purchase cost of equipment. At the same time, multiple sets of equipment need to occupy a large amount of production space, which significantly increases the production cost and operating cost of enterprises. For some enterprises with limited funds and space, this solution is not sustainable.

[0003] In addition to the problem of universality, the poor discharge of waste is also a big problem faced by the existing piston pinhole processing device. During the processing, a large amount of metal scraps and other waste will be generated. Some processing devices lack reasonable waste discharge structure and cannot effectively guide and clean the waste. The waste is easy to accumulate in the processing area, which not only interferes with the normal operation of the processing tool and leads to a decrease in processing precision, but also may exacerbate the wear of the tool and shorten the service life of the tool. Frequent replacement of tools not only increases the production cost, but also affects the continuity of production. Moreover, if the accumulated waste is not cleaned in time, it may damage other parts of the processing device, further increasing the maintenance cost of the equipment. SUMMARY

[0004] The utility model discloses a purpose lies in providing a kind of pin hole processing device suitable for different specifications pistons, to solve the poor versatility of the existing piston pin hole processing device in the above background art, the problem of low production efficiency, high cost and the influence of machining precision and tool life caused by the discharge of waste material not being smooth when processing different specifications pistons needs frequently replacing fixture or purchasing multiple sets of equipment.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of pin hole processing device suitable for different specifications pistons, including clamping disc, the lower surface of the clamping disc is fixedly provided with support column, and the lower end outside surface of clamping disc is fixedly provided with connecting flange, the inside of the clamping disc is provided with clamping mechanism, by the way of synchronous centripetal motion of clamp, so that the clamping disc can be clamped to the piston of different diameters;

[0006] The clamping mechanism includes: sliding rod, the sliding rod is fixedly arranged in the inside of clamping disc, and the inside of clamping disc is installed with rotating displacement rod, the outer surface of sliding rod and displacement rod is provided with clamping plate, and the upper end of clamping plate penetrates the upper surface of clamping disc, the lower end inside of clamping disc is fixedly installed with central motor, and the output shaft upper end of central motor is fixedly connected with central gear, the inside of clamping disc above central gear is installed with rotating transmission gear, the inside of clamping disc is installed with rotating lateral gear, the upper end surface of central gear is fixedly connected with sliding cylinder, the lower end of the rotating shaft of transmission gear is fixedly connected with connecting cylinder, connecting rod is connected between connecting cylinder and sliding cylinder, the outside surface of connecting rod is installed with rotating connecting plate, and one end of connecting plate is fixedly connected with the lower end of electric push rod, and the upper end of electric push rod is fixedly installed in the inside of clamping disc;

[0007] The inside of clamping disc is provided with waste discharge mechanism, and the smooth discharge of waste material is ensured by guiding and stirring waste material;

[0008] The waste discharge mechanism includes: waste discharge groove, the waste discharge groove is opened in the lower surface of clamping disc, the inside of clamping disc is installed with rotating linkage gear ring, and the lower surface of linkage gear ring is fixedly provided with poking plate, the inside of clamping disc is installed with rotating poking gear, and one end of the rotating shaft of poking gear is fixedly connected with driving gear, the inside of clamping disc is fixedly provided with partition plate.

[0009] Preferably, the clamping plate and displacement rod are threadedly connected, and the clamping plate and sliding rod are slidingly connected, the upper end of the clamping plate penetrates the upper surface of the clamping disc, the upper end of the clamping plate is arc-shaped, and the clamping plates are equally angularly arranged on the surface of the clamping disc.

[0010] The above technical scheme can realize the synchronous centripetal or centrifugal motion of the clamping plate, and facilitate the effective clamping of pistons of different diameters.

[0011] Preferably, the center gear is concentrically arranged with the transmission gear, the transmission gear is meshingly connected with the lateral gear, and the lateral gear is fixedly connected with the displacement rod, and the sliding cylinder and the connecting cylinder are slidingly and clampingly connected through the connecting rod.

[0012] The above technical scheme ensures that the rotation of the center gear can be accurately transmitted to the displacement rod through the transmission gear and the lateral gear, and realizes the accuracy and stability of mechanical transmission, and the sliding and clamping connection between the sliding cylinder and the connecting cylinder ensures that the connection state of the sliding cylinder and the connecting cylinder can be conveniently switched.

[0013] Preferably, the waste discharge grooves are uniformly distributed on the lower surface of the clamping disc, the lower end surface of the poking plate is attached to the inner bottom surface of the clamping disc, and the poking plate is uniformly distributed on the lower surface of the linkage gear ring, and the vertical projection of the linkage gear ring does not completely coincide with the vertical projection of the clamping plate.

[0014] The above technical scheme ensures that the waste can be discharged through the uniformly distributed waste discharge grooves, the poking plate can fully stir the waste on the attached disc bottom surface, so that the waste is more easily moved to the waste discharge grooves, and the projection of the linkage gear ring and the clamping plate does not coincide to avoid the interference of the waste and affect the stability of the work.

[0015] Preferably, the poking gear is meshingly connected with the center gear, and the driving gear is meshingly connected with the linkage gear ring.

[0016] The above technical scheme utilizes the rotation of the center gear to drive the rotation of the poking gear, and then utilizes the driving gear to drive the rotation of the linkage gear ring, realizes the power transmission from the center motor power output to the waste discharge component, ensures the power source of the waste discharge mechanism, enables the waste discharge mechanism to work cooperatively with the piston clamping operation, and the gear transmission connection mode is stable and reliable, and ensures that the waste discharge process is continuously and stably performed.

[0017] Preferably, the separation plate is designed in an inverted V shape, penetrates through the outer surface of the clamping plate, and is slidingly connected with the clamping plate, and the separation plate is located above the sliding rod and the displacement rod.

[0018] The above technical scheme utilizes the inverted V-shaped design, so that the separation plate can more effectively guide the waste to gather in the waste discharge grooves, the sliding connection enables the separation plate to adapt to the movement of the clamping plate without interference, and the separation plate is located above the sliding rod and the displacement rod, avoids the influence of the waste on the main transmission components, further optimizes the waste discharge process, and ensures the efficiency of the waste discharge and the stability of the whole equipment.

[0019] Compared with the prior art, the beneficial effects of the present application are that the pin hole machining device for different specifications of pistons:

[0020] 1. The synchronous centripetal motion of the clamp is realized by using the sliding rod, the displacement rod and the clamping plate and other components matched therewith, the clamping plate is in screw connection with the displacement rod, in sliding connection with the sliding rod and is arranged at equal angles on the surface of the clamping disc, the upper end of the clamping plate is designed in an arc shape, different diameter pistons can be stably clamped, the design discards the mode that the traditional processing device designs the clamp for specific specifications of pistons, the clamp does not need to be frequently replaced, the adaptability of the processing device to different specifications of pistons is greatly improved, the production efficiency is effectively improved, and the production cost is reduced;

[0021] 2. The design of the waste discharge mechanism ensures smooth discharge of waste, the waste discharge grooves are uniformly distributed on the lower surface of the clamping disc, providing a discharge channel for waste, and the linkage gear ring, the driving plate, the driving gear and the driving gear and other components work cooperatively, the driving gear is engaged with the central gear through the driving gear, the driving gear is engaged with the linkage gear ring, the linkage gear ring is driven to rotate, and then the driving plate fixed on the lower surface of the linkage gear ring stirs and guides the waste, ensures that the waste will not accumulate in the processing area, effectively avoids the influence of waste accumulation on the machining precision, reduces the wear of the tool caused by the interference of the waste, and prolongs the service life of the tool;

[0022] Further, the design that the vertical projection of the linkage gear ring and the vertical projection of the clamping plate do not coincide with each other cooperates with the guide of the partition plate to the waste, so that the waste will not affect the engagement of the driving gear and the linkage gear ring, and the stable operation of the whole equipment is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is a whole three-dimensional structure schematic view of the utility model;

[0024] Figure 2 It is a three-dimensional structure schematic view of the connection of the clamping disc and the waste discharge groove of the utility model;

[0025] Figure 3 It is a three-dimensional structure schematic view of the whole section of the utility model;

[0026] Figure 4 It is a three-dimensional structure schematic view of the connection of the displacement rod, the clamping plate and the partition plate of the utility model;

[0027] Figure 5 It is a three-dimensional structure schematic view of the connection of the linkage gear ring and the driving gear of the utility model;

[0028] Figure 6 It is a three-dimensional structure schematic view of the connection of the sliding cylinder, the connecting cylinder and the connecting rod of the utility model.

[0029] In the figure: 1, clamping disc; 2, support column; 3, connecting flange; 4, sliding rod; 5, displacement rod; 6, clamping plate; 7, center motor; 8, center gear; 9, transmission gear; 10, lateral gear; 11, sliding cylinder; 12, connecting cylinder; 13, connecting rod; 14, connecting plate; 15, electric push rod; 16, waste slot; 17, linkage gear ring; 18, actuating plate; 19, actuating gear; 20, driving gear; 21, partition plate. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0031] Please refer to Figures 1-6 The utility model provides a kind of technical scheme: a pin hole processing device suitable for different specifications of piston.

[0032] Embodiment one

[0033] Disclosed in this embodiment: clamping disc 1, the lower surface of clamping disc 1 is fixedly provided with support column 2, and the outer surface of the lower end of clamping disc 1 is fixedly provided with connecting flange 3, the inside of clamping disc 1 is provided with clamping mechanism, by the way of synchronous centripetal motion of clamp, so that clamping disc 1 can clamp different diameter pistons;

[0034] Clamping mechanism includes: sliding rod 4, sliding rod 4 is fixedly arranged in the inside of clamping disc 1, and the inside of clamping disc 1 is installed with rotating displacement rod 5, the outer surface of sliding rod 4 and displacement rod 5 is provided with clamping plate 6, and the upper end of clamping plate 6 penetrates the upper surface of clamping disc 1, the lower end inside of clamping disc 1 is fixedly installed with center motor 7, and the output shaft upper end of center motor 7 is fixedly connected with center gear 8, the inside of clamping disc 1 above center gear 8 is installed with rotating transmission gear 9, the inside of clamping disc 1 is installed with rotating lateral gear 10, the upper end surface of center gear 8 is fixedly connected with sliding cylinder 11, the lower end of the rotating shaft of transmission gear 9 is fixedly connected with connecting cylinder 12, connecting rod 13 is connected between connecting cylinder 12 and sliding cylinder 11, the outer surface of connecting rod 13 is installed with rotating connecting plate 14, and one end of connecting plate 14 is fixedly connected with the lower end of electric push rod 15, and the upper end of electric push rod 15 is fixedly installed in the inside of clamping disc 1;

[0035] The clamping plate 6 is threadedly connected with the displacement rod 5, and the clamping plate 6 is slidingly connected with the sliding rod 4, the upper end of the clamping plate 6 penetrates through the upper surface of the clamping disc 1, and the upper end of the clamping plate 6 is designed in an arc shape, and the clamping plate 6 is arranged at equal angles on the surface of the clamping disc 1;

[0036] The central gear 8 is arranged concentrically with the transmission gear 9, the transmission gear 9 is meshingly connected with the lateral gear 10, and the lateral gear 10 is fixedly connected with the displacement rod 5, the sliding cylinder 11 and the connecting cylinder 12 are slidingly and clampingly connected through the connecting rod 13;

[0037] The clamping disc 1 is fixedly provided with the support column 2 on the lower surface, for supporting the whole device, the connecting flange 3 on the lower end of the outer side can be used for being connected with other equipment or components for fixation, the sliding rod 4 in the clamping disc 1 is fixedly arranged, for providing support and guidance for the sliding of the clamping plate 6, a plurality of clamping plates 6 are arranged on the outer surfaces of the sliding rod 4 and the displacement rod 5, the clamping plate 6 is threadedly connected with the displacement rod 5 and slidingly connected with the sliding rod 4, which is the key to realize the synchronous centripetal motion, at the same time, the upper end of the clamping plate 6 is designed in an arc shape, and is arranged at equal angles on the surface of the clamping disc 1 and penetrates through the upper surface of the clamping disc 1, so as to facilitate clamping of pistons with different diameters;

[0038] When the piston needs to be clamped, the central motor 7 is started, the output shaft of the central motor 7 drives the central gear 8 to rotate, the central gear 8 is arranged concentrically with the transmission gear 9, and the rotation of the central gear 8 drives the transmission gear 9 to rotate synchronously through the sliding cylinder 11, the connecting cylinder 12 and the connecting rod 13, the rotation of the transmission gear 9 further drives the lateral gear 10 meshingly connected therewith to rotate, since the lateral gear 10 is fixedly connected with the displacement rod 5, the rotation of the lateral gear 10 drives the displacement rod 5 to rotate, the rotation of the displacement rod 5 drives the clamping plate 6 to move centripetally or centrifugally along the sliding rod 4 through the threaded connection, since a plurality of clamping plates 6 are arranged at equal angles and are connected with the displacement rod 5 and the sliding rod 4 in the same way, they move centripetally or centrifugally synchronously, when the clamping plate 6 moves centripetally, since the upper end thereof is designed in an arc shape, it gradually approaches and adheres to the outer surface of the piston, and finally realizes stable clamping of pistons with different diameters, when the piston needs to be loosened, the displacement rod 5 is reversely rotated, the clamping plate 6 moves centrifugally to loosen the piston;

[0039] When the transmission gear 9 does not need to be driven to rotate, at this time, the electric push rod 15 is started, the electric push rod 15 drives the connecting rod 13 to slide downward through the connecting plate 14, the connecting rod 13 slides downward relative to the sliding cylinder 11 to disengage from the clamping of the connecting cylinder 12, at this time, even if the central motor 7 continues to work, the transmission gear 9 will not be driven to continue to rotate.

[0040] Example two

[0041] The embodiment discloses that the inside of the clamping disc 1 is provided with a waste discharge mechanism, and the smooth discharge of waste is ensured through the guiding and stirring of the waste.

[0042] The waste discharge mechanism comprises a waste discharge groove 16, the waste discharge groove 16 is arranged on the lower surface of the clamping disc 1, a rotating linkage gear ring 17 is arranged in the inside of the clamping disc 1, a driving plate 18 is fixedly arranged on the lower surface of the linkage gear ring 17, a rotating driving gear 19 is arranged in the inside of the clamping disc 1, and the one end of the rotating shaft of the driving gear 19 is fixedly connected with a driving gear 20, and a partition plate 21 is fixedly arranged in the inside of the clamping disc 1.

[0043] The waste discharge grooves 16 are uniformly distributed on the lower surface of the clamping disc 1, the lower end surface of the driving plate 18 is attached to the bottom surface in the inside of the clamping disc 1, and the driving plate 18 is uniformly distributed on the lower surface of the linkage gear ring 17, and the vertical projection of the linkage gear ring 17 is completely not coincided with the vertical projection of the clamping plate 6.

[0044] The driving gear 20 is meshed with the linkage gear ring 17.

[0045] The partition plate 21 is designed in an inverted V shape, penetrates through the outer surface of the clamping plate 6, and is slidably connected with the clamping plate 6, and the partition plate 21 is located above the sliding rod 4 and the displacement rod 5.

[0046] The center motor 7 drives the center gear 8 to rotate, the driving gear 19 meshed with the center gear 8 also rotates, the rotation of the driving gear 19 drives the driving gear 20 to rotate through the rotating shaft, the driving gear 20 drives the linkage gear ring 17 meshed with the driving gear 20 to rotate, when the linkage gear ring 17 rotates, the driving plate 18 on the lower surface of the linkage gear ring 17 performs a circular motion on the bottom surface in the inside of the clamping disc 1, and due to the motion of the driving plate 18, the waste generated in the machining process is stirred, so that the waste moves towards the direction of the waste discharge groove 16.

[0047] Meanwhile, the partition plate 21 plays a guiding and separating role on the waste, prevents the waste from flowing randomly, the inverted V-shaped design of the partition plate 21 helps to gather the waste to the waste discharge groove 16 and prevents the waste from falling on the connection between the sliding rod 4, the displacement rod 5 and the clamping plate 6, and due to the fact that the vertical projection of the linkage gear ring 17 is completely not coincided with the vertical projection of the clamping plate 6, the waste does not affect the meshing between the driving gear 20 and the linkage gear ring 17, so that the stable operation of the equipment in the waste discharge process is ensured, the waste is finally discharged from the clamping disc 1 through the waste discharge groove 16 under the stirring of the driving plate 18 and the guiding of the partition plate 21, the smooth discharge of the waste is realized, the waste is prevented from accumulating in the machining area, and the machining precision and the service life of the tool are ensured.

[0048] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A pin hole processing device suitable for different specifications of pistons, comprising a clamping disc (1), the lower surface of the clamping disc (1) is fixedly provided with a supporting column (2), and the lower end outer surface of the clamping disc (1) is fixedly provided with a connecting flange (3), characterized in that: The inside of the clamping disc (1) is provided with a clamping mechanism, which can clamp pistons with different diameters through synchronous centripetal movement of the clamps; The clamping mechanism comprises a sliding rod (4) fixedly arranged in the inside of the clamping disc (1), a rotating displacement rod (5) installed in the inside of the clamping disc (1), a clamping plate (6) arranged on the outer surfaces of the sliding rod (4) and the displacement rod (5), an upper end of the clamping plate (6) penetrating through the upper surface of the clamping disc (1), a central motor (7) fixedly installed in the lower end of the clamping disc (1), a central gear (8) fixedly connected to the output shaft of the central motor (7), a rotating transmission gear (9) installed in the inside of the clamping disc (1) above the central gear (8), a rotating lateral gear (10) installed in the inside of the clamping disc (1), a sliding cylinder (11) fixedly connected to the upper end surface of the central gear (8), a connecting cylinder (12) fixedly connected to the lower end of the rotating shaft of the transmission gear (9), a connecting rod (13) connected between the connecting cylinder (12) and the sliding cylinder (11), a rotating connecting plate (14) installed on the outer side surface of the connecting rod (13), and a lower end of the connecting plate (14) fixedly connected to the lower end of an electric push rod (15), and an upper end of the electric push rod (15) fixedly installed in the inside of the clamping disc (1).

2. The pin bore machining device of claim 1, wherein: The inside of the clamping disc (1) is provided with a waste discharge mechanism, which can ensure smooth discharge of waste through guiding and stirring of the waste; The waste discharge mechanism comprises a waste discharge groove (16) arranged in the lower surface of the clamping disc (1), a rotating linkage gear ring (17) installed in the inside of the clamping disc (1), a push plate (18) fixedly arranged on the lower surface of the linkage gear ring (17), a rotating push gear (19) installed in the inside of the clamping disc (1), a driving gear (20) fixedly connected to one end of the rotating shaft of the push gear (19), and a partition plate (21) fixedly arranged in the inside of the clamping disc (1).

3. The pin bore machining device of claim 1, wherein: The clamping plate (6) is threadedly connected to the displacement rod (5), and the clamping plate (6) is slidingly connected to the sliding rod (4), the upper end of the clamping plate (6) penetrates through the upper surface of the clamping disc (1), the upper end of the clamping plate (6) is designed in an arc shape, and the clamping plate (6) is arranged at equal angles on the surface of the clamping disc (1).

4. The pin bore machining device of claim 1, wherein: The central gear (8) is concentrically arranged with the transmission gear (9), the transmission gear (9) is meshingly connected with the lateral gear (10), the lateral gear (10) is fixedly connected to the displacement rod (5), and the sliding cylinder (11) and the connecting cylinder (12) are slidingly and clampingly connected through the connecting rod (13).

5. The pin bore machining device of claim 2, wherein: The waste discharge grooves (16) are uniformly distributed on the lower surface of the clamping disc (1), the lower end surface of the push plate (18) is attached to the inner bottom surface of the clamping disc (1), the push plates (18) are uniformly distributed on the lower surface of the linkage gear ring (17), and the vertical projection of the linkage gear ring (17) does not completely coincide with the vertical projection of the clamping plate (6).

6. The pin bore machining device of claim 2, wherein: The toggle gear (19) is in meshing connection with the center gear (8), and the driving gear (20) is in meshing connection with the linkage gear ring (17).

7. The pin bore machining device of claim 2, wherein: The separation plate (21) is designed in an inverted V shape, penetrates through the outer surface of the clamping plate (6), and is in sliding connection with the clamping plate (6), and the separation plate (21) is located above the sliding rod (4) and the displacement rod (5).

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