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CN-121973125-A - Machining clamp for outboard engine crankcase

CN121973125ACN 121973125 ACN121973125 ACN 121973125ACN-121973125-A

Abstract

The invention belongs to the technical field of machining clamps, in particular to a machining clamp for an outboard engine crankcase, which comprises a bottom plate and a bracket arranged on the bottom plate, wherein a placing plate for placing the crankcase is arranged on the bracket, a sliding rod is arranged on the placing plate in a vertical sliding manner, a pressing block is hinged to the upper end of the sliding rod, a linkage plate is connected to the lower end of the sliding rod, a pressing plate used for being pressed on the linkage plate is arranged on the bottom plate, the crankcase is placed on the placing plate, the sliding rod is moved upwards, the pressing block extends out of a piston hole of the crankcase, then extends into the crankcase from the crankshaft hole of the crankcase to adjust the pressing block to be in a horizontal state, and the pressing plate presses the linkage plate to drive the pressing block to be pressed on the upper surface of the piston hole. The invention can effectively avoid pressure loss or scratch the coating on the outer surface of the crankcase, and the product has good appearance quality and long service life.

Inventors

  • QIU LICHU

Assignees

  • 浙江安奇迪动力机械有限公司

Dates

Publication Date
20260505
Application Date
20260407

Claims (9)

  1. 1. The processing clamp for the crank case of the outboard engine is characterized by comprising a bottom plate (1) and a support (2) arranged on the bottom plate (1), wherein a placing plate (4) for placing the crank case (3) is arranged on the support (2), a sliding rod (5) is arranged on the placing plate (4) in a vertical sliding mode, a pressing block (6) is hinged to the upper end of the sliding rod (5) and extends out of the placing plate (4), a linkage plate (7) is connected to the lower end of the sliding rod and extends out of the placing plate (4), a pressing plate (8) used for pressing the linkage plate (7) is arranged on the bottom plate (1), the crank case (3) is placed on the placing plate (4), the sliding rod (5) is moved upwards, after the pressing block (6) extends out of a piston hole (9) of the crank case (3), the pressing block (6) is adjusted to be in a horizontal state from a crank hole (10) of the crank case (3), and the pressing plate (8) presses the pressing plate (7) to drive the pressing block (6) to press on the upper surface of the piston hole (9).
  2. 2. The processing clamp for the crankcase of the outboard engine, as set forth in claim 1, is characterized in that a connecting rod (11) is arranged on the bottom plate (1), and a compression nut (12) for compressing on the pressing plate (8) is screwed on the upper end of the connecting rod (11).
  3. 3. The processing clamp for the crankcase of the outboard engine, as set forth in claim 2, is characterized in that the pressing plate (8) is provided with a notch (13) for the connecting rod (11) to be clamped in.
  4. 4. The processing clamp for the crank case of the outboard engine as claimed in claim 2, wherein the bottom plate (1) is provided with a balance weight (14), one end of the pressing plate (8) is pressed on the linkage plate (7), the other end of the pressing plate is pressed on the balance weight (14), and the compression nut (12) is pressed on the middle part of the linkage plate (7).
  5. 5. The processing clamp for the crankcase of the outboard engine of claim 1, wherein more than two piston holes (9) are arranged, the number and the positions of the sliding rods (5) are matched with those of the piston holes (9), and the lower ends of the sliding rods (5) are connected to the same linkage plate (7).
  6. 6. The processing clamp for the crankcase of the outboard engine, as set forth in claim 1, is characterized in that the sliding rod (5) comprises a small cylindrical section (5 a), a large cylindrical section (5 b) and a threaded section (5 c) from top to bottom, the upper end of the small cylindrical section (5 a) is hinged with the pressing block (6), the large cylindrical section (5 b) is slidably arranged in the placing plate (4), the linkage plate (7) is sleeved outside the threaded section (5 c), the threaded section (5 c) is connected with a first locking nut (15) and a second locking nut (16) in a threaded mode, and the linkage plate (7) is limited between the first locking nut (15) and the second locking nut (16).
  7. 7. The processing clamp for the crankcase of the outboard engine, as set forth in claim 1, wherein the pressing block (6) is a cuboid, the length of the cuboid is larger than the diameter of the piston hole (9), and the width and the height of the cuboid are smaller than the diameter of the piston hole (9).
  8. 8. The processing clamp for the crankcase of the outboard engine, as set forth in claim 1, wherein the placement plate (4) is provided with a positioning post (17) which is matched with the piston hole (9).
  9. 9. The processing clamp for the crankcase of the outboard engine as claimed in claim 1, wherein the bracket (2) is composed of two support plates respectively provided at both ends of the placement plate (4).

Description

Machining clamp for outboard engine crankcase Technical Field The invention belongs to the technical field of machining clamps, and particularly relates to a machining clamp for an outboard engine crankcase. Background The outboard engine comprises a crankcase and a crankshaft arranged in the crankcase, wherein the crankcase is generally formed by combining a box body and a box cover covered on the box body, and the box body and the box cover are matched to form a crankshaft hole. Because the crankshaft has high requirements on the installation accuracy, the crankshaft hole is usually required to be finished before assembly, and therefore, the crankcase is required to be reliably clamped. However, the outer surfaces of the case body and the case cover of the existing crankcase are generally provided with black protective coatings for improving the corrosion resistance. The existing clamping tool generally adopts a mode of directly clamping the outer surface of the crankcase, and the clamping mode is easy to cause pressure loss or scratch on the coating, so that the protection effect is destroyed, and further the appearance quality and the service life of the product are affected. Therefore, the existing clamping tool is difficult to meet the clamping requirement of carrying out crankshaft hole finish machining on the coated crankcase. Disclosure of Invention The invention aims to provide a processing clamp for an outboard engine crankcase, which can effectively avoid pressure loss or scratch of a coating on the outer surface of the crankcase, and has good product appearance quality and long service life. The invention is realized in the following way: The utility model provides a processing anchor clamps of outboard engine crankcase, includes the bottom plate and sets up the support on the bottom plate, be equipped with the board of placing that is used for placing the crankcase on the support, place along vertical smooth being equipped with the slide bar on the board, the slide bar upper end stretches out to place the board and articulates has the briquetting, the lower extreme stretches out to place the board and be connected with the gangboard, be equipped with on the bottom plate and be used for pressing the clamp plate of establishing on the gangboard, place the crankcase on placing the board, shift up the slide bar, the briquetting stretches out the back from the piston hole of crankcase, stretches into the crankcase with the briquetting alignment state from the bent axle hole of crankcase in, the clamp plate compresses tightly the gangboard and drives the briquetting and compress tightly on the upper surface of piston hole. In the processing clamp for the crank case of the outboard engine, the bottom plate is provided with the connecting rod, and the upper end of the connecting rod is in threaded connection with the compression nut used for compressing on the pressing plate. In the processing clamp for the crankcase of the outboard engine, the compression nut is a hexagonal flange nut. In the processing clamp for the crank case of the outboard engine, the lower end of the connecting rod is connected to the bottom plate in a threaded mode and is locked through the locking nut. In the processing clamp for the crank case of the outboard engine, the pressing plate is provided with a notch for the connecting rod to be clamped in. In the processing clamp for the crankcase of the outboard engine, the notch is U-shaped. In the processing clamp for the crank case of the outboard engine, the bottom plate is provided with the balance weight, one end of the pressing plate is pressed on the linkage plate, the other end of the pressing plate is pressed on the balance weight, and the compression nut is pressed on the middle part of the linkage plate. In the processing clamp for the crankcase of the outboard engine, the screw penetrates through the bottom plate and is in threaded connection with the balance weight. In the processing clamp for the crank case of the outboard engine, more than two piston holes are formed in the piston hole, the number and the positions of the sliding rods are matched with those of the piston holes, and the lower ends of the sliding rods are connected to the same linkage plate. In the processing clamp for the crank case of the outboard engine, the sliding rod comprises a small cylindrical section, a large cylindrical section and a threaded section from top to bottom, the upper end of the small cylindrical section is hinged with the pressing block, the large cylindrical section is slidably arranged in the placing plate, the linkage plate is sleeved outside the threaded section, the threaded section is in threaded connection with a first locking nut and a second locking nut, and the linkage plate is limited between the first locking nut and the second locking nut. In the processing clamp for the crankcase of the outboard engine, the first locking nut, the second locking nut and the third