JP4463836B2 - Engine / transmission suspension - Google Patents

Description

  The present invention relates to a suspension for transporting an engine mission.

  In the automobile assembly line, the engine mission is transferred from the engine preparation process to the installation process. A suspension body that is suspended by a hoist crane is used for transporting the engine and mission.

  This suspension body is composed of several types of engine front side hanging hooks, engine rear side hanging hooks, and mission hanging hooks having different lengths corresponding to several types of engine missions. Incidentally, six types of engine front side hanging hooks, nine types of engine rear side hanging hooks, and two types of mission hanging hooks are used.

  When the engine / transmission is transported by the above-mentioned conventional suspension body, the engine front side, the engine rear side, and the transmission are hooked with a hook and lifted by a hoist crane, but the horizontal balance during transport is maintained. For this reason, the operator can use several types of engine-side suspension hooks, engine-rear suspension hooks, and mission suspension hooks of different lengths that are suitable for the engine / transmission. Is selected.

  Therefore, the operator must learn all types of suspension tools, and skill is necessary. In the current situation where the types of engines are increasing, the suspension devices suitable for many types of engines at the operator's discretion. There are limits to the choices. In addition, there is a problem that the equipment cost increases because a lifting tool is added every time a new engine is added.

JP 2001-341977 A

  The present invention provides a suspension device for transporting an engine and a mission that can automatically adjust the horizontal balance by suspending various types of engine and mission by using three suspension devices mounted on a single suspension device body. With the goal.

  In order to achieve the above object, the present invention provides a first plate suspended by a hoist crane, and is attached to the lower surface of the first plate so that it can be switched to the left and right by a left and right switching cylinder in a plane parallel to the first plate. The second plate is provided with a transmission hanging hook at the end of the first plate so that the vertical position can be adjusted by a servo cylinder with an encoder, and at the front and rear ends of the second plate, a pulley is provided. The vertical position of one hanging hook for the engine front side and one hanging hook for the engine rear can be adjusted up and down. The length is adjusted by the servo motor with encoder and brake. Installed on the upper surface of the first plate, and a horizontal holding means using a front / rear tilt sensor and a left / right tilt sensor is installed. The one in which the features.

  According to the present invention, various types of engine and suspension can be provided by three suspension tools including one transmission suspension hook, one engine front side suspension hook, and one engine rear side suspension hook. In response to the mission, the horizontal balance can be adjusted automatically, and the number of suspension tools is remarkably reduced. This eliminates the need for the operator to select a suspension tool, thereby saving labor and reducing equipment costs.

  The best mode for carrying out the present invention will be described below with reference to the drawings. 1 and 2, reference numeral 1 denotes a hanger body. The suspension body 1 is attached to a first plate 2 suspended by a hoist crane 3 and to the lower surface of the first plate 2 in a plane parallel to the first plate so as to be capable of switching between left and right by a left and right switching cylinder 14. And the second plate 4.

  The first plate 2 has a hoist suspension 17 on its upper surface, and one transmission suspension hook 6 is adjustable at the vertical position of the end of the first plate 2 by a servo cylinder 7 incorporating an encoder. Is provided. The mission suspension hook 6 is provided via a spring balancer 8.

  The second plate 4 has a cam follower 13 on the lower surface of the first plate 2 and is parallel to the first plate 2 and can be rotated to the left and right by a left / right switching cylinder 14 in a plane. It is attached to the plate 2.

  At the front and rear end portions of the lower surface of the second plate 4, one engine front side hanging hook 9 a and one engine rear side hanging hook 9 b are provided so that the vertical position can be adjusted. The vertical position adjustment mechanism of the engine front side hanging hook 9a and the engine rear side hanging hook 9b is guided by a pulley 11 and includes a brake unit 10b that advances and retreats by a brake cylinder 10a and includes an encoder 10c. Further, the chain 12 is wound up and rewound by the servo motor 10, and an engine front side hanging hook 9a and an engine rear side hanging hook 9b are attached to the end of the chain 12.

  Further, a horizontal holding means using a front / rear tilt sensor 15 and a left / right tilt sensor 16 is installed on the upper surface of the first plate 2. As shown in FIG. 3, this horizontal holding means has a structure in which a steel ball 19 is provided in a pipe 18 so that it can roll, and a stopper 21 and a proximity switch 20 are provided at both ends of the pipe 18. The position 19 is detected by the proximity switch 20 to detect the inclination.

  The operation of the present invention having the above structure will be described below. The mission suspension hook 6 is preliminarily controlled by the horizontal holding means by the horizontal holding means by the front / rear inclination sensor 15 and the left / right inclination sensor 16, the encoder built in the servo cylinder 7, and the encoder 10 c provided in the servo motor 10. The length of the chain 12 is taught so that the vertical position and the vertical position of the engine front side hanging hook 9a and the engine rear side hanging hook 9b are set.

  Therefore, in the engine lifting portion by the engine front side hanging hook 9a and the engine rear side hanging hook 9b, the engine front side hanging hook 9a and the engine rear side hanging hook 9b are provided with the front / rear inclination sensor 15 and the left and right The horizontal holding position is calculated by the encoder 10c based on the detection signal of the tilt sensor 16, and the length of the chain 12 is adjusted by the servo motor 10 to the point taught in advance to control the horizontal holding position.

  In the hanging of the engine front side hanging hook 9a and the engine rear side hanging hook 9b, there is a case where the position of the hook portion is in a staggered arrangement (diagonal crossing) depending on the type of the engine. Based on the teaching, the second panel 4 is rotated to the left and right by the left / right switching cylinder 14 so that the positions of the engine front side hanging hook 9a and the engine rear side hanging hook 9b are shifted to the left and right in a staggered manner (diagonal). Switch. When the positions of the engine front-side suspension hook 9a and the engine rear-side suspension hook 9b are determined, the brake cylinder 10a operates the brake portion 10b forward to brake the servo motor 10 during transportation. Prevent the chain 12 from moving.

  In the mission suspension portion by the mission suspension hook 6, the servo cylinder 7 having an encoder adjusts the vertical position based on the teaching based on the detection signals of the front / rear inclination sensor 15 and the left / right inclination sensor 16, and controls the horizontal holding.

  In this way, the engine front side hanging hook 9a and the engine rear side hanging hook 9b are hooked on the hooks provided on the front and rear sides of the engine, and the mission hanging hooks are hooked on the hooks provided on the mission. The engine / transmission is lifted by the hoist crane 3 and transported to the target place and lowered to mount the engine / transmission on the vehicle body.

  As described above, in the present invention, the vertical position can be adjusted, and the second plate can be switched by rotating the second plate to the left and right when the left and right zigzag is misplaced (obliquely crossed) by switching the left and right. One engine front side hanging hook 9a, one engine rear side hanging hook 9b and one transmission hanging hook 6 whose vertical position can be adjusted are combined into three hooks. It is possible to suspend a wide variety of engines and transmissions with the base lifting device body 1 and to automatically transport it with horizontal balance adjustment. As a result, it is not necessary for the operator to select a lifting tool with a length corresponding to the type of engine, thus saving labor and improving work efficiency. It has advantages such that allows the work.

Side view of a suspension for engine transmission according to the present invention Plan view of FIG. Cross section of horizontal holding means

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Lifting tool body 2 1st plate 3 Hoist crane 4 2nd plate 5 Rotating shaft 6 Hook for mission suspension 7 Servo cylinder with built-in encoder 8 Spring balancer 9a Hook for engine front side suspension 9b Hook for engine rear side suspension DESCRIPTION OF SYMBOLS 10 Servo motor 10a Brake cylinder 10b Brake part 10c Encoder 11 Pulley 12 Chain 13 Cam follower 14 Left-right switching cylinder 15 Front-back inclination sensor 16 Left-right inclination sensor 17 Hoist suspension part

Claims (1)

  A first plate that is lifted and lowered by a hoist crane; and a second plate that is attached to the lower surface of the first plate in a plane parallel to the first plate and capable of switching between left and right by a left and right switching cylinder. One end suspension hook is provided at the end of the plate so that the vertical position can be adjusted by a servo cylinder with an encoder. The front and rear ends of the second plate are guided by a pulley and are extended by a servo motor with an encoder and a brake. An engine front suspension hook and an engine rear suspension hook attached to the tip of the chain whose height is adjusted are provided so that the vertical position can be adjusted, and the upper surface of the first plate is inclined forward and backward. The engine and mission are characterized by the installation of a horizontal holding means with a sensor and a left / right tilt sensor. Hanger for transmission.

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