JPH0321867Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to an assembling device for assembling a connecting rod cap to a connecting rod body of a connecting rod.

Prior Art A connecting rod A for connecting a piston inserted into a cylinder of an engine and a crankshaft is connected to a connecting rod main body B and a connecting rod main body B, as shown in FIG. It consists of a connecting rod cap E which is fixed via a bolt C and a nut D.
The piston and the crankshaft are connected by connecting the small end F of this connecting rod A to the piston and the big end G to the crankshaft.

When manufacturing the above-mentioned connecting rod A, the inner circumferential surface of the big end G of the connecting rod A is cut and polished so that the inner diameter dimension falls within a standard value. When cutting and polishing the inner peripheral surface of the big end G, the connecting rod main body B and the connecting rod cap E are integrated via bolts C and nuts D, and then the inner peripheral surface of the big end G is cut and polished. This ensures that the dimensions of the inner circumferential surface are accurately within standard values.

Problems to be Solved by the Invention As mentioned above, the connecting rod main body B of the connecting rod A and the connecting cap E are once integrated using bolts C and nuts D, and the inner circumferential surface of the big end G is When cutting and polishing the connecting rod main body B and the connecting cap E, the work efficiency is extremely low because the integration of the connecting rod body B and the connecting cap E is done manually by a worker.

Means for Solving the Problem The cap is slidably supported, has a guide groove on the top surface for sliding the connecting rod cap in a positioned state, and has a band-shaped notch on the bottom surface of the guide groove. The guide frame has a pressing member on the front surface for sliding the connecting rod cap carried into the guide groove toward the front of the guide groove, and has a protrusion on the lower part that projects into the notch. and a sliding member that moves within the guide groove by a piston of a cylinder fixed to the rear of the guide frame, and the stroke of the cylinder is longer than the entire length of the notch provided in the guide frame. The cap assembly device allows
The connecting rod cap is assembled to the connecting rod body.

Function The connecting rod cap is positioned within the guide groove by the guide groove provided in the guide frame and the slide member having the pressing member that moves within the guide groove, and the connecting rod is moved in the positioned state. This is to assemble the cap to the connecting rod body.

Embodiment FIGS. 1 to 5 show an assembly device for a connecting rod cap according to the present invention.
In the figure, 1a and 1b are support frames arranged in parallel with a predetermined interval, and 2 is a support frame 1a and 1b.
This is a slide stand supported slidably between support frames 1a and 1b by a pair of guide rods 3 and 3 arranged between them. Reference numeral 4 denotes a guide frame fixed on the slide base 2, and a guide groove 5 in the shape of a concave groove is provided on the upper surface of the guide frame 4. The width of this guide groove 5 is made approximately the same as the width of the connecting rod cap E, and when the connecting rod cap E is carried into this guide groove 5, the position of the connecting rod cap E can be regulated. It is set as. Further, the upper part of the guide groove 5 has a tapered surface that widens outward as shown in FIG. 5, so that the connecting gland cap E can be easily carried into the guide groove 5. Reference numeral 6 denotes a band-shaped notch formed at the bottom of the guide groove 5, and within this notch 6, a convex portion 8a provided at the lower part of a slide member 8, which will be described later, is located. 7 is the support frame 1b
8 is a slide member fixed to the tip of the piston rod 7a of the hydraulic cylinder 7;
As the piston rod 7a expands and contracts, it moves in the left and right directions in the figure in the guide groove 5. Further, the lower part of the slide member 8 is provided with a protrusion 8a that protrudes into the notch 6 provided on the bottom surface of the guide groove 5. As the slide member 8 moves in the left-right direction in the figure, the protrusion 8a is removed. Front end 6a or rear end surface 6b of notch 6
After this, the slide member 8 moves together with the guide frame 4. Reference numeral 9 denotes a pressing member fixed to the front portion of the slide member 8, and the tip of this pressing member 9 is shaped to stably abut against the connecting gland cap E carried into the guide groove 5.

In the above configuration, in order to assemble the connecting rod cap E to the connecting rod main body B of the connecting rod A using the connecting rod cap assembling device according to the present invention,
First, the hydraulic cylinder 7 is shortened, and as shown in FIGS.
As shown in the figure, the slide member 8 is moved back to the right in the figure with the protrusion 8a of the slide member 8 in contact with the rear end 6b of the notch 6 provided on the bottom surface of the guide groove 5. At the same time, the guide frame 4 integrated with the slide base 2 is positioned at the retreating end. Next, as shown in FIGS. 1 and 2 with dashed lines, the pressing member 9 in the guide groove 5
At the same time, the connecting rod main body B with the bolt C inserted is moved to the front of the guide frame 4 and into the guide groove 5. It is positioned and fixed at a position facing the bearing rod cap E using a clamp device 10. When the hydraulic cylinder 7 is extended in this state,
First, only the slide member 8 having the pressing member 9 moves forward in the guide groove 5, and the connecting rod cap E carried in in front of the pressing member 9 is slid toward the front of the guide groove 5. When the end surface of the connecting rod cap E substantially coincides with the tip end surface of the guide groove 5, and at the same time, the convex portion 8a of the slide member 8 comes into contact with the front end surface 6a of the notch portion 6,
Guide groove 5 of slide member 8 having pressing member 9
The movement within is stopped, and the connecting gland cap E is positioned in front of the guide groove 5. When the hydraulic cylinder 7 further extends in this state, the convex part 8a of the slide member 8 is in contact with the front end surface 6a of the notch part 6, so the guide frame 4 moves forward together with the slide base 2, and the guide frame 4 moves forward together with the slide base 2. The connecting rod cap E positioned at the front of the guide groove 5 contacts the connecting rod main body B in this state as shown in FIGS. 3 and 4, and is inserted into the connecting rod main body B. The tip of the bolt C passed through the hole provided in the connecting rod cap E. In this way, when the connecting rod cap E comes into contact with the connecting rod body B, the hydraulic cylinder 7 is shortened. Then, first, only the slide member 8 having the pressing member 9 retreats inside the guide groove 5 toward the right in the figure, and when the protrusion 8a of the slide member 8 comes into contact with the rear end surface 6b of the notch 6, the slide member 8;
The slide base 2 and the integrated guide frame 4 both retreat to the right in the figure and return to the original state shown in FIGS. 1 and 2. After that, the connecting rod main body B with the connecting rod cap E supported by the bolt C is transported to the next process, and the connecting rod main body B and the connecting rod are connected by screwing the nut D onto the bolt C. Integrates with Teingrod Cap E.

Effects of the Invention As described above, the present invention positions the connecting rod cap within the guide groove using a guide groove provided in the guide frame and a slide member having a pressing member that moves within the guide groove, and Since the connecting rod cap can be assembled to the connecting rod body while it is in the positioned state, the assembly of the connecting rod cap to the connecting rod body can be automated, and the assembly work can be simplified. You can measure efficiency improvement.

[Brief explanation of the drawing]

Fig. 1 is a plan view showing the hydraulic cylinder of the connecting gland cap assembly device according to the present invention in a shortened state, Fig. 2 is a sectional view taken along the line of Fig. 1, and Fig. 3 is a hydraulic cylinder FIG. 4 is a plan view showing the extended state, FIG.
The figure is a sectional view taken along the line of FIG. FIG. 6 is a plan view showing an example of the connecting rod. 4... Guide frame, 5... Guide groove, 6...
... Notch, 7 ... Hydraulic cylinder, 7a ... Piston rod, 8 ... Slide member, 8a ... Convex part,
9... Pressing member, A... Connecting rod,
B...Connecting rod body, E...Connecting rod cap.

Claims (1)

[Scope of utility model registration request] A guide frame is supported in a slidable manner, has a guide groove on the upper surface for sliding the connecting rod cap in a positioned state, and has a band-shaped notch on the bottom surface of the guide groove, and the above-mentioned guide frame on the front surface. It has a pressing member for sliding the connecting rod cap carried into the guide groove toward the front of the guide groove, has a convex portion protruding into the notch at the lower part, and has a pressing member for sliding the connecting rod cap carried into the guide groove toward the front of the guide groove. A connecting rod cap assembly comprising a sliding member that moves in a guide groove by a piston of a cylinder fixed at the rear, and characterized in that the stroke of the cylinder is longer than the entire length of a notch provided in a guide frame. attached device.