CN217254148U - Automatic piston assembling device - Google Patents

Abstract

The utility model belongs to the technical field of power equipment, in particular to an automatic piston assembling device, which comprises a manipulator and a clamping component, wherein the manipulator is suitable for position adjustment; the clamping assembly comprises a guide rail, a chuck and a first driver; the guide rail is arranged on the manipulator; the two chuck plates are arranged on the guide rail, and the opposite side surfaces of the two chuck plates are cambered surfaces matched with the piston; the first driver is mounted on the guide rail, and an output end is connected with the chuck and is suitable for driving the chuck to move on the guide rail so as to clamp the piston. The structure can realize one-time automatic clamping and assembly of the piston, reduces human intervention, can improve the cleanliness of the piston ring and the piston, can improve the efficiency and increases the reliability of the assembly process.

Description

A piston automatic assembly device

technical field

The utility model belongs to the technical field of power equipment, in particular to an automatic assembly device for a piston.

Background technique

At present, when installing the piston in a large-bore engine, manual assembly is still adopted. Specifically, during the assembly process, an operator is required to hold a tool to clamp the piston and put it into the cylinder liner. However, manual operation is easy to cause uneven force on the piston ring, causing the piston ring to separate from the piston groove, and it is easy to scratch the cylinder liner or the seal is not tight during the assembly process. Serious accident. In addition, during assembly, if the piston ring is seriously out of the piston ring groove, the clamping tool cannot tighten the piston, and the operator needs to manually adjust the position of the piston ring. At this time, the piston ring has been brushed with oil, and manual adjustment is likely to cause secondary pollution. , affecting the cleanliness of the sealing parts in the cylinder. The piston ring and the cylinder liner mainly transmit the motion through the friction pair, and the cleanliness has a great influence on the life of the cylinder liner and even the whole machine. This manual assembly method is not only inefficient, but also difficult to ensure the stability and cleanliness of the assembly process, reducing the reliability of the high-speed operation of the engine.

Therefore, in view of the above deficiencies, the present invention urgently needs to provide an automatic piston assembly device.

Utility model content

The purpose of the utility model is to provide an automatic piston assembly device to solve the problem that the manual assembly of the piston is easy to dislocate and cause secondary pollution in the prior art.

The automatic piston assembly device provided by the utility model includes: a manipulator, which is suitable for position adjustment; a clamping component, including a guide rail, a chuck and a first driver; the guide rail is installed on the manipulator; the chucks are two , are installed on the guide rail, and the opposite sides of the two chucks are arc surfaces adapted to the piston; the first driver is installed on the guide rail, and the output end is connected with the chuck , suitable for driving the chuck to move on the guide rail to clamp the piston.

In the above-mentioned automatic piston assembly device, it is further preferable that the cross section of the guide rail is rectangular;

In the above-mentioned automatic piston assembly device, it is further preferred that the arc surfaces of the two chucks are in the shape of a frustoconical shape of a large upper and a lower small.

In the above-mentioned automatic piston assembly device, further preferably, bosses are provided at both ends of the guide rail, and each of the bosses is mounted with one of the first drivers.

In the above-mentioned automatic piston assembly device, further preferably, the middle part of the guide rail is connected with the manipulator; and the two chucks are respectively provided on both sides of the connection position.

In the above-mentioned automatic piston assembly device, further preferably, the clamping assembly further includes a push rod, the push rod is vertically installed on the guide rail, and is located between the two chucks, suitable for up and down activity to push the piston.

The above-mentioned automatic piston assembly device, further preferably, the manipulator includes a rotating arm and an adjusting arm; the rotating arm is vertically arranged and can rotate at the installation place; one end of the adjusting arm is mounted on the rotating arm the upper end, and the other end is connected with the guide rail.

In the above-mentioned automatic piston assembly device, further preferably, the manipulator further comprises a first gear, a second gear and a second driver, the first gear is sleeved on the rotating arm, and the second gear is mounted on the rotating arm. on the output shaft of the second driver, and the first gear meshes with the second gear.

The above-mentioned automatic piston assembly device, further preferably, the adjusting arm comprises a crank, a connecting rod and a third driver, one end of the crank is hinged to the upper end of the rotating arm, and the other end is hinged with the connecting rod; The third driver is mounted on the rotating arm and connected with the crank; the end of the connecting rod is connected with the guide rail.

In the above-mentioned automatic piston assembly device, it is further preferred that a position sensor is provided on the crank.

The automatic piston assembly device provided by the utility model includes a manipulator and a clamping assembly, wherein the clamping assembly includes a guide rail, a chuck and a first driver; the guide rail is installed on the manipulator; the chucks are two, both of which are Installed on the guide rail, and the opposite sides of the two chucks are arc surfaces adapted to the piston; the first driver is installed on the guide rail, and the output end is connected with the chuck, suitable for for driving the chuck to move on the guide rail to clamp the piston. The above structure can realize the position adjustment through the manipulator, and adjust the position of the chuck through the first driver to realize the tightening and loosening of the piston, thereby realizing the one-time automatic clamping and assembly of the piston, and there is little human intervention in the whole process, so not only can Improving the cleanliness of piston rings and pistons also increases efficiency and increases the reliability of the assembly process.

Through the setting of the camber shape corresponding to the clamping in the chuck, on the one hand, after clamping, the chuck and the piston at the same cross section are concentric circles, so that the piston ring is restrained in all directions, and further It is limited to a nearly circular shape to prevent the piston ring from being separated from the piston ring groove due to uneven force, and at the same time to prevent the piston ring from scratching the cylinder liner during assembly. On the other hand, the conical arc surface makes the piston ring limited by the shape of the chuck, and it is also in the state of large up and down in the axial direction, so that it is convenient to slowly press it into the groove of the piston ring.

Description of drawings

In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the accompanying drawings that need to be used in the description of the specific embodiments or the prior art. Obviously, the following descriptions The accompanying drawings are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings without creative efforts.

Fig. 1 is the structural representation of the piston automatic assembly device in the utility model;

FIG. 2 is a schematic structural diagram of the clamping assembly in FIG. 1 .

Description of reference numbers:

1- Guide rail, 2- Boss, 3- Chuck, 4- First drive, 5- Push rod, 6- Swivel arm, 7- Crank, 8- Connecting rod, 9- Third drive, 10- First gear , 11 - the second drive, 12 - the second gear.

Detailed ways

The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are a part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner" and "outer" The orientation or positional relationship indicated by etc. is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, with a specific orientation. Therefore, it should not be construed as a limitation on the present invention. Furthermore, the terms "first", "second", and "third" are used for descriptive purposes only and should not be construed to indicate or imply relative importance.

In the description of the present invention, it should be noted that, unless otherwise expressly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it may be a fixed connection or a connectable connection. Detachable connection, or integral connection; may be mechanical connection or electrical connection; may be direct connection, or indirect connection through an intermediate medium, or internal communication between two components. For those of ordinary skill in the art, the specific meanings of the terms in the present invention can be understood in specific situations.

As shown in FIGS. 1-2 , the automatic piston assembly device disclosed in this embodiment includes a manipulator and a clamping assembly, and the tightening and assembly of the piston is realized through the cooperation of the manipulator and the clamping assembly.

Specifically, the clamping assembly includes a guide rail 1 , a chuck 3 , a first driver 4 and a push rod 5 .

The cross-section of the guide rail 1 is rectangular, and the middle part is installed on the manipulator, so that the guide rail 1 can maintain balance during subsequent use.

There are two chucks 3 , and each chuck 3 is provided with an insertion groove, which is suitable for being movably installed on both ends of the guide rail 1 respectively through the insertion groove. The insertion groove is rectangular, and the specifications and dimensions are basically the same as the rectangular section of the guide rail 1, so that the chuck 3 can only move along the length of the guide rail 1 without deflection in other directions. Shaped through grooves can also be used in this embodiment. The opposite sides of the two chucking discs 3 are arc surfaces adapted to the piston. Preferably, both sides are arc surfaces of 180°, so that the piston can be clamped at 360° to realize the assembly of the piston. Preferably, the cambered surfaces of the two chucks 3 are in the shape of a frustoconical shape, which is suitable for making the clamped piston ring in the state of being larger at the top and smaller at the bottom in the axial direction. The piston ring is slowly pressed into the ring groove of the piston.

The first driver 4 is a displacement control device, and any device that can realize displacement change can be used in this embodiment. Specifically, in this embodiment, hydraulic cylinders are used, wherein the number of hydraulic cylinders is two, and the cylinders of the two hydraulic cylinders are The bodies are respectively installed on two bosses 2 that are symmetrical at both ends of the guide rail 1 , and further, are installed on the opposite sides of the two bosses 2 . The piston rods of the hydraulic cylinder are arranged opposite to each other, and are respectively connected with the chucks 3 on the corresponding side.

The push rod 5 is vertically installed on the guide rail 1 and located between the two chucks 3, and is suitable for moving up and down to push the piston.

In practical application, the piston rods of the two hydraulic cylinders act synchronously to drive the chuck 3 to move towards or away from each other on the guide rail 1, so as to realize the tightening and loosening of the piston. After the cylinder liner is accurately positioned by the manipulator, the piston can be pushed into the cylinder liner to achieve precise assembly. In the above structure, because the guide rail 1 is a symmetrical structure and the middle part is connected with the manipulator, the two chucks 3 and the two first drivers 4 are also symmetrically arranged, so when clamping, the piston can be kept balanced at the vertical position, which is more convenient. subsequent assembly.

The manipulator is used for precise positioning of the clamping components. Specifically, the manipulator includes a rotating arm 6 and an adjusting arm, wherein the rotating arm 6 is vertically arranged and can rotate at the installation position; one end of the adjusting arm is installed on the upper end of the rotating arm 6, The other end is connected to the guide rail 1 .

In order to realize the rotation of the rotating arm 6 , the manipulator further includes a first gear 10 , a second gear 12 and a second driver 11 , wherein the first gear 10 is sleeved on the rotating arm 6 , and the second gear 12 is installed on the output of the second driver 11 . on the shaft, and the first gear 10 meshes with the second gear 12 . Preferably, limited to the rotation range of the rotating arm 6, the first gear 10 and the second gear 12 in this embodiment are both incomplete gears, wherein the second gear 12 is driven by the second driver 11 to rotate within a limited range, In turn, the first gear 10 is driven to rotate within a limited range to drive the rotating arm 6 to rotate within a limited range.

The adjusting arm is a crank 7 connecting rod 8 structure, specifically, including a crank 7, a connecting rod 8 and a third driver 9, one end of the crank 7 is hinged to the upper end of the rotating arm 6, and the other end is hinged with the connecting rod 8; the third driver 9 It is installed on the rotating arm 6 and connected with the crank 7 , and is suitable for driving the connecting rod 8 to move up and down; the end of the connecting rod 8 is connected with the guide rail 1 .

Further, the crank 7 is also provided with a position sensor. Specifically, the position sensor is suitable for detecting the position of the piston and the position of the cylinder liner, so as to facilitate the positioning of the second driver 11 and the third driver 9 and the tightening installation of the first driver 4 .

Further, the present embodiment also discloses the use method of the above-mentioned automatic piston assembly device:

The position sensor obtains the piston position information, the second driver 11 and the third driver 9 adjust the position of the clamping assembly according to the piston position information so that the two chucks 3 are located outside the piston; the first driver 4 drives the two chucks 3 to move toward each other To hold the piston tightly so that the piston ring is bound in 360° direction. The position sensor acquires the position information of the cylinder liner, and the second driver 11 and the third driver 9 adjust the position of the clamping device holding the piston according to the position information of the cylinder liner, so that the piston is located directly above the cylinder liner. The push rod 5 pushes the piston down, freeing it from the chuck 3 and into the cylinder liner.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model, but not to limit them; although the present utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that : it can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements to some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the various embodiments of the present utility model Scope of technical solutions.

Claims (10)

1. a piston automatic assembly device, is characterized in that, comprises: Manipulator, suitable for position adjustment; a clamping assembly, including a guide rail, a chuck and a first driver; the guide rail is mounted on the manipulator; the chucks are two, both are mounted on the guide rail, and the two chucks are on opposite sides Both are arc surfaces adapted to the piston; the first driver is mounted on the guide rail, and the output end is connected with the chuck, and is suitable for driving the chuck to move on the guide rail to clamp the piston. 2 . The automatic piston assembly device according to claim 1 , wherein the cross section of the guide rail is rectangular; the chuck is provided with a rectangular fitting groove, and the fitting groove is adapted to the guide rail. 3 . Dress up. 3 . The automatic piston assembly device according to claim 1 , wherein the cambered surfaces of the two chucks are in the shape of a frustoconical shape of a large upper and a lower small. 4 . 4 . The automatic piston assembly device according to claim 1 , wherein both ends of the guide rail are provided with bosses, and each of the bosses is mounted with one of the first drivers. 5 . 5 . The automatic piston assembly device according to claim 1 , wherein the middle part of the guide rail is connected with the manipulator; and the two chucks are respectively provided on both sides of the connection position. 6 . 6 . The automatic piston assembly device according to claim 1 , wherein the clamping assembly further comprises a push rod, and the push rod is vertically installed on the guide rail and located between the two chucks 6 . It is suitable for moving up and down to push the piston. 7 . The automatic piston assembly device according to claim 1 , wherein the manipulator comprises a rotating arm and an adjusting arm; the rotating arm is arranged vertically and can rotate at the installation place; one end of the adjusting arm is installed On the upper end of the rotating arm, the other end is connected with the guide rail. 8 . The automatic piston assembly device according to claim 7 , wherein the manipulator further comprises a first gear, a second gear and a second driver, the first gear is sleeved on the rotating arm, and the The second gear is mounted on the output shaft of the second driver, and the first gear meshes with the second gear. 9 . The automatic piston assembly device according to claim 7 , wherein the adjusting arm comprises a crank, a connecting rod and a third driver, one end of the crank is hinged to the upper end of the rotating arm, and the other end is hinged with a the connecting rod; the third driver is mounted on the rotating arm and connected with the crank; the end of the connecting rod is connected with the guide rail. 10 . The automatic piston assembly device according to claim 9 , wherein a position sensor is provided on the crank. 11 .

Images