Crankshaft drilling auxiliary tool

Abstract

The utility model relates to the technical field of crankshaft drilling machining, and discloses a crankshaft drilling auxiliary tool which comprises a base, a supporting frame, a clamping device and a tailstock. The supporting frame, the clamping device and the tailstock are all arranged on the top face of the base. The supporting frame comprises two supporting plates, two rotating shafts and two rolling wheels. The two supporting plates are connected through two rotating shafts. And the roller is sleeved on the rotating shaft. The two ends of the rotating shaft are rotationally connected with supporting plates correspondingly. According to the utility model, the support frame can horizontally move in four directions, so that the whole clamping process is more sensitive and convenient. The electric cylinder is added, so that the height of the support frame can be flexibly adjusted up and down, and the applicability is improved. The kidney-shaped hole design can be compatible with crankshafts with the same shaft diameter and different length specifications. The rotating handle is shaken to rotate the crankshaft, the crankshaft can be fixed at any angle, and the drilling procedure is assisted.

Description

Technical Field

[0001] The utility model relates to the technical field of crankshaft drilling processing, in particular to a crankshaft drilling auxiliary tooling. Background Art

[0002] The crankshaft is the most important part of the engine. It bears the force from the connecting rod and converts it into torque, which is output through the crankshaft and drives other accessories on the engine. The crankshaft is subjected to the combined effects of the centrifugal force of the rotating mass, the periodically changing gas inertia force and the reciprocating inertia force, which makes the crankshaft subject to bending and torsion loads. Therefore, the crankshaft is required to have sufficient strength and rigidity, and the journal surface must be wear-resistant, work evenly and have good balance.

[0003] In the prior art, although there are many clamping and supporting structures, most of them have a single supporting method and cannot avoid high-frequency vibration caused by drilling.

[0004] In order to solve the above problems, we propose a crankshaft drilling auxiliary tooling. Utility Model Content

[0005] The purpose of the utility model is to provide a crankshaft drilling auxiliary tool to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a crankshaft drilling auxiliary tooling, comprising a base, a support frame, a clamping device and a tailstock;

[0007] The support frame, the clamping device and the tailstock are all arranged on the top surface of the base; the support frame includes two support plates, two rotating shafts and two rollers; the two support plates are connected by two rotating shafts; the roller is sleeved on the rotating shaft; and one of the support plates is rotatably connected to each of the two ends of the rotating shaft.

[0008] Preferably, the top surface of the base is connected to a sliding plate via a sliding rail; the bottom of the support plate is connected to a sliding block; and the sliding block is connected to the top of the sliding plate via a sliding rail.

[0009] Preferably, an electric cylinder is provided in the sliding block; the electric cylinder comprises a fixed end and a driving end; the driving end of the electric cylinder is connected to the bottom of the support plate.

[0010] Preferably, a waist hole is provided on the top of the base; and the tailstock is connected to the waist hole of the base by bolts.

[0011] Preferably, the clamping device is a three-jaw chuck.

[0012] Preferably, a top side of the tailstock is provided with an ejector pin; and the other side of the tailstock is provided with a hand wheel for adjusting the ejector pin.

[0013] Preferably, universal wheels are provided at the bottom of the base.

[0014] Compared with the prior art, the utility model has the following beneficial effects: the crankshaft drilling auxiliary tooling can make the support frame move horizontally in four directions, making the entire clamping process more sensitive and convenient. The addition of an electric cylinder allows the support frame to flexibly adjust its height up and down, increasing its applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0016] Figure 2 for Figure 1 Schematic diagram of the cross-section structure at AA in the middle;

[0017] Figure 3 It is a schematic diagram of the support frame structure with an electric cylinder in the utility model.

[0018] In the figure: 1-base, 2-sliding plate, 3-support frame, 31-support plate, 32-rotating shaft, 33-roller, 34-sliding block, 35-electric cylinder, 4-clamping device, 5-tail stock. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1 , Figure 2 , Figure 3 The utility model provides a technical solution: a crankshaft drilling auxiliary tooling, including a base 1, a support frame 3, a clamping device 4 and a tailstock 5.

[0021] The support frame 3, the clamping device 4 and the tailstock 5 are all arranged on the top surface of the base 1. The support frame 3 includes two support plates 31, two rotating shafts 32 and two rollers 33. The two support plates 31 are connected by two rotating shafts 32. The roller 33 is sleeved on the rotating shaft 32. The two ends of the rotating shaft 32 are rotatably connected to one of the support plates 31.

[0022] There may be at least two support frames 3, so that the crankshaft has multiple support points during processing to avoid excessive vibration.

[0023] Furthermore, the top surface of the base 1 is connected to the sliding plate 2 via a sliding rail. The bottom of the support plate 31 is connected to a sliding block 34. The sliding block 34 is connected to the top of the sliding plate 2 via a sliding rail.

[0024] First, the axial adjustment is achieved by sliding the sliding plate 2. Then, the radial adjustment is performed by the sliding block 34. This design allows the support frame 3 to be adjusted in four directions.

[0025] The utility model adopts at least two support frames 3 to flexibly adjust the positions, so as to achieve diagonal support and fixation of the crankshaft, thereby avoiding excessive vibration caused by drilling.

[0026] Furthermore, an electric cylinder 35 is disposed in the sliding block 34 . The electric cylinder 35 includes a fixed end and a driving end. The driving end of the electric cylinder 35 is connected to the bottom of the support plate 31 .

[0027] Furthermore, a waist hole is provided on the top of the base 1. The tailstock 5 is connected to the waist hole of the base 1 by bolts. The waist hole design is compatible with crankshafts of the same diameter and different lengths.

[0028] Furthermore, the clamping device 4 is a three-jaw chuck. The clamping device 4 is also provided with a rotating handle. The crankshaft can be rotated by shaking the rotating handle, and the crankshaft can be fixed at any angle to assist the drilling process.

[0029] Furthermore, a top side of the tailstock 5 is provided with an ejector pin. The other side of the tailstock 5 is provided with a hand wheel for adjusting the ejector pin.

[0030] Furthermore, a universal wheel is provided at the bottom of the base 1. A universal wheel is a so-called movable caster, and its structure allows 360-degree horizontal rotation. Casters are a general term, including movable casters and fixed casters. Fixed casters do not have a rotating structure and cannot rotate horizontally but only vertically. These two types of casters are generally used in combination. For example, the structure of a trolley is two fixed wheels in the front and two movable universal wheels in the back near the push armrest. A universal wheel means that the bracket installed on the caster wheel can rotate 360 ​​degrees horizontally under dynamic load or static load.

[0031] Working principle:

[0032] First, one end of the crankshaft is clamped by the clamping device 4 , and the other end of the crankshaft is fixed by the ejector pin of the tailstock 5 .

[0033] First, the axial adjustment is achieved by sliding the sliding plate 2. Then the radial adjustment is performed by the sliding block 34. This design allows the support frame 3 to be adjusted in four directions. Then the height of the top roller 33 is adjusted by the electric cylinder 35 to adapt to the processing of shafts of various sizes.

[0034] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0035] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A crankshaft drilling auxiliary tool, characterized in that: It comprises a base (1), a support frame (3), a clamping device (4) and a tailstock (5); The support frame (3), the clamping device (4) and the tailstock (5) are all arranged on the top surface of the base (1); the support frame (3) comprises two support plates (31), two rotating shafts (32) and two rollers (33); the two support plates (31) are connected via the two rotating shafts (32); the rollers (33) are sleeved on the rotating shafts (32); and one of the support plates (31) is rotatably connected to each of the two ends of the rotating shaft (32).

2. The crankshaft drilling auxiliary tool according to claim 1, characterized in that: The top surface of the base (1) is connected to a sliding plate (2) via a sliding rail; the bottom of the support plate (31) is connected to a sliding block (34); and the sliding block (34) is connected to the top of the sliding plate (2) via the sliding rail.

3. The crankshaft drilling auxiliary tool according to claim 2, characterized in that: An electric cylinder (35) is provided inside the sliding block (34); the electric cylinder (35) comprises a fixed end and a driving end; the driving end of the electric cylinder (35) is connected to the bottom of the support plate (31).

4. The crankshaft drilling auxiliary tool according to claim 1, characterized in that: The top of the base (1) is provided with a waist hole; the tailstock (5) is connected to the waist hole of the base (1) by means of bolts.

5. The crankshaft drilling auxiliary tool according to claim 1, characterized in that: The clamping device (4) is a three-jaw chuck.

6. The crankshaft drilling auxiliary tool according to claim 1, characterized in that: A top side of the tailstock (5) is provided with an ejector pin; the other side of the tailstock (5) is provided with a hand wheel for adjusting the ejector pin.

7. The crankshaft drilling auxiliary tool according to claim 1, characterized in that: The bottom of the base (1) is provided with universal wheels.

Images