CN201664840U - A rolling crankshaft fillet fast clamping bracket - Google Patents

Abstract

The utility model relates to a fast clamping bracket for rolling crankshaft rounded corners, which comprises a driving disc and a supporting device. The device is arranged at the small end of the crankshaft, which includes a support plate, a bracket body, a top, a sleeve, and a tailstock. The bracket body is fixed on the front end of the tailstock with screws. A top corresponding to the center hole of the small head end of the crankshaft is installed, and the support plate is fixedly installed on the front end of the support body with screws, and the V-shaped mouth of the journal of the small end end of the crankshaft is provided above the support plate. When the driving disc rotates, the crankshaft rotates thereupon, and the rolling mechanism can be started to implement the rolling of the crankshaft fillets. It has reasonable structure, convenient operation and fast clamping, and is suitable for all kinds of crankshaft rolling fillet clamping.

Description

A rolling crankshaft fillet fast clamping bracket

technical field

The utility model relates to a support, in particular to a fast clamping support for rolling crankshaft rounded corners.

Background technique

We know that at present, the crankshaft fillet is rolled by a crankshaft rolling machine tool. The clamping is to lift the crankshaft, first insert the outer circle of the big head into the drive disc, and then slowly drop it to align the center hole of the small head with the top, and then manually or The pneumatic and hydraulic mechanism pushes the top of the sleeve to compress the crankshaft. This clamping mechanism is not only slow in operation, but also labor intensive.

Contents of the invention

The technical problem to be solved by the utility model is to overcome the deficiencies of the above-mentioned prior art, and provide a rolling crankshaft fillet fast clamping bracket with reasonable structure, simple manufacture, convenient operation, fast clamping and wide application range.

The technical scheme adopted by the utility model to solve the above-mentioned technical problems is: a rolling crankshaft fillet fast clamping bracket, which is characterized in that it includes a driving disc and a supporting device, the driving disc is arranged at the big end of the crankshaft, and there is a The positioning pin corresponding to the process positioning hole at the big end of the crankshaft, the supporting device is arranged at the small end of the crankshaft, which includes a support plate, a bracket body, a top, a sleeve, and a tailstock. The bracket body is fixed on the front end of the tailstock with screws, and the tailstock The seat is equipped with a sleeve that can move back and forth. The front end of the sleeve is equipped with a top corresponding to the center hole of the small end of the crankshaft. The support plate is fixed on the front end of the bracket body with screws, and the journal of the small end of the crankshaft is supported on the top of the support plate. V-shaped mouth.

The said supporting plate of the utility model is also provided with elongated holes up and down. The elongated hole can adjust the height of the bracket according to the journal size of the small end of different crankshafts.

In the utility model, when the support plate supports the journal of the crankshaft small end, the centerline of the center hole of the crankshaft small end deviates downward by a certain distance A from the top centerline.

In the utility model, when the sleeve is pushed forward by an external force, and the top moves forward to align the center hole of the small end of the crankshaft and compress the crankshaft, there is a certain gap between the V-shaped surface of the support plate and the journal of the small end of the crankshaft. When driving the crankshaft to rotate, there can be no friction between the two.

The utility model adopts the above-mentioned mechanism to quickly clamp the crankshaft, and the drive plate is driven to rotate by the transmission system, and the crankshaft rotates accordingly, and the rolling mechanism can be started to roll the fillet of the crankshaft. Compared with the prior art, the utility model has the advantages of reasonable structure, simple manufacture, convenient operation and fast clamping, and is suitable for installation and use of various types of crankshaft rolling fillets.

Description of drawings

Below in conjunction with accompanying drawing, the utility model is further described.

Fig. 1 is the structural representation of the utility model.

Fig. 2 is a schematic diagram of the unclamped state A in Fig. 1 .

Fig. 3 is a schematic diagram of the clamping state A in Fig. 1 .

In the figure 1. Drive plate, 2. Locating pin, 3. Crankshaft, 4. Support plate, 5. Screw, 6. Top, 7. Bracket body, 8. Sleeve, 9. Tailstock.

Detailed ways

It can be seen from FIG. 1 , FIG. 2 and FIG. 3 that a rolling crankshaft fillet quick clamping bracket includes driving discs 1 and supporting devices respectively located at both ends of the crankshaft 3 . The crankshaft 3 large end is provided with process positioning hole, and the small end is provided with center hole. Said driving disc 1 is arranged on the big end of the crankshaft 3, on which there is a positioning pin 2 corresponding to the process positioning hole of the big end of the crankshaft, the front part of the crankshaft journal is inserted into the driving disc 1, and the positioning pin 2 is used for circumferential positioning . The driving disc 1 can be fixed on the rotary transmission system of the existing machine tool, driven by the transmission system of the machine tool.

The supporting device of the utility model is arranged on the small end of the crankshaft. The supporting device includes a support plate 4, a bracket body 7, a top 6, a sleeve 8, a tailstock 9, and the like. The bracket body 7 is fixedly mounted on the front end of the tailstock 9 with screws 7, the tailstock 9 is equipped with a sleeve 8 which can move back and forth, and the front end of the sleeve 8 is equipped with a top 6 corresponding to the center hole of the small end of the crankshaft 3, and the top 6 is inserted into the Inside the sleeve 8. The support plate 4 is fixedly installed on the front end of the bracket body 7 with screws 6, and the top of the support plate 4 is provided with a V-shaped opening supporting the small end journal of the crankshaft.

The tailstock 9 of the utility model can be installed on the ground or other equipment, and the sleeve 8 can be pushed forward and backward by manual or pneumatic or hydraulic mechanisms.

Also be provided with elongated hole up and down on the said support plate 4 of the utility model. The elongated hole can adjust the height of the bracket according to the journal size of the small end of different crankshafts.

In the utility model, when the journal of the small end of the crankshaft is put into the V shape of the support plate 4, and the four support plates support the journal of the small end of the crankshaft, the center line of the center hole of the small end of the crankshaft deviates downward by a certain distance from the center line of the top. a.

In the utility model, when the sleeve 8 is pushed forward by a manual or pneumatic or hydraulic mechanism, and the taper of the center hole at the small end of the crankshaft is used, the top 6 moves forward to align the center hole at the small end of the crankshaft 3 and compress the crankshaft. , the small end of the crankshaft is raised, the center line of the center hole of the small end of the crankshaft and the center line of the top are on the same horizontal center line, and there is a certain gap between the V-shaped surface of the support plate and the journal of the small end of the crankshaft. When the drive disc drives the crankshaft to rotate, there can be no friction between the two. At this moment, the driving disc 1 is driven to rotate by the transmission system, and the crankshaft 3 rotates thereupon, and the rolling mechanism can be started to implement the rolling crankshaft fillet.

During use, lift the crankshaft, align the locating pin 2 with the crankshaft 3 large end process positioning holes, and insert the front part of the journal into the drive disc 1. The small head end journal is put into the V shape of the support plate 4, and the sleeve 8 is promoted by manual or pneumatic or hydraulic mechanism to make the top 6 align the center hole and compress the crankshaft 3 on the same horizontal center line. At this moment, the driving disc is driven by the transmission system to rotate, and the crankshaft rotates thereupon, and the rolling mechanism can be started to implement the rolling crankshaft fillet.

Claims (2)

1. A rolling crankshaft fillet fast clamping bracket, characterized in that: it includes a drive plate and a support device, the drive plate is arranged on the big end of the crankshaft, and a positioning pin corresponding to the process positioning hole of the big end of the crankshaft is provided on it , the supporting device is set at the small end of the crankshaft, which includes a support plate, a bracket body, a top, a sleeve, and a tailstock. The bracket body is fixed and installed on the front end of the tailstock with screws. A top corresponding to the center hole of the crankshaft small end is installed on the front end of the barrel, and the support plate is fixedly installed on the front end of the bracket body with screws, and a V-shaped mouth supporting the journal of the small end of the crankshaft is provided above the support plate. 2. The quick clamping bracket for rolling crankshaft rounded corners according to claim 1, characterized in that: the support plate is also provided with elongated holes up and down. the

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