Quick positioning tool for flywheel casing

Abstract

The utility model discloses a quick positioning tool for a flywheel casing, which relates to the technical field of tool clamps and comprises a base and an adjusting and positioning mechanism. The base is provided with a center positioning chuck, the positioning structure comprises a supporting column, a limiting block and an adjusting push rod, the supporting column and the limiting block are both fixedly connected with the base, and the adjusting push rod is located on the opposite face of the limiting block; a plurality of fixing clamps are arranged on the base, each fixing clamp comprises a clamping cylinder and a pressing arm, one end of each pressing arm is hinged to the corresponding clamping cylinder, and the extending end of each pressing arm is located on the upper portion of the corresponding supporting column. Therefore, by means of the limiting block and the adjusting push rod which are oppositely arranged, automatic adjustment of the position of the workpiece is achieved, human intervention is reduced, operation safety is improved, and meanwhile position accuracy is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of tooling and fixture technology, specifically to a flywheel housing quick positioning tooling. Background Technology

[0002] In the current flywheel housing processing, the flywheel housing needs to be positioned and then fixed in order to facilitate subsequent processing operations. However, due to its irregular shape, specific tooling fixtures are generally required to achieve this fixation.

[0003] In the prior art, there is a patent document with publication number CN216759651U entitled "A Flywheel Housing Positioning Fixture". In this document, the flywheel housing is positioned and clamped by setting a first adjustment positioning mechanism and a second adjustment positioning mechanism respectively. In actual use, since each flywheel housing model is different, and in this application document, the center positioning seat of the second adjustment positioning mechanism needs to be tightly attached to the inner wall of the flywheel housing during use and cannot be adjusted, when flywheel housings of different models are placed on this positioning fixture, accurate positioning cannot be achieved due to size and model issues, affecting the processing accuracy. Utility Model Content

[0004] To overcome the above-mentioned defects, the purpose of this utility model is to provide a flywheel housing quick positioning fixture, which realizes automatic adjustment of the workpiece position through relatively set limit blocks and adjusting push rods, reduces human intervention, improves operational safety, and ensures positional accuracy.

[0005] To achieve the above objectives, this utility model provides a quick positioning fixture for a flywheel housing, comprising: a base and an adjustment and positioning mechanism; the base is provided with a central positioning chuck, and the positioning structure includes a support column, a limiting block, and an adjusting push rod, wherein the support column and the limiting block are both fixedly connected to the base, and the adjusting push rod is located on the opposite side of the limiting block; the base has a plurality of fixing clamps, each fixing clamp including a clamping cylinder and a pressure arm, one end of the pressure arm being hinged to the clamping cylinder, and the extended end of the pressure arm being located on the upper part of the support column.

[0006] Preferably, the central positioning chuck includes a chuck base and chuck claws, the chuck claws being movably connected to the chuck base, and each chuck claw having a contact at its end.

[0007] Preferably, a pressure block is fixed at the end of the pressure arm, and the lower end face of the pressure block and the end face of the contact are both arc-shaped.

[0008] Preferably, the fixing fixture is in three sets, and the central positioning chuck is a three-jaw positioning chuck, with the movement direction of each jaw corresponding to the position of the fixing fixture.

[0009] Preferably, the base is further provided with two auxiliary support seats, which are respectively close to the adjusting push rod and the limiting block, and each auxiliary support seat is provided with a lifting cylinder in the middle part.

[0010] Preferably, the central positioning chuck is further provided with a cleaning groove, which is semi-circular and located below the chuck claw.

[0011] The beneficial technical effects achieved by this utility model after adopting the above technical solution are as follows:

[0012] 1. Because an adjustment and positioning mechanism is set on the base; the workpiece is placed on the support column in the adjustment and positioning structure, and then one end is close to the limit block, and the adjusting push rod is located on the opposite side of the limit block; when the adjusting push rod moves, one end of the workpiece will abut against the limit block, thereby realizing positioning adjustment. In this process, human contact is directly avoided, thus avoiding pinching injury and improving the safety of operation.

[0013] 2. Several fixed clamps are installed, each consisting of a clamping cylinder and a pressure arm. One end of the pressure arm is hinged to the clamping cylinder, and the extended end of the pressure arm is located above the support column. When the pressure arm rotates to clamp and fix the workpiece, the support column at the bottom provides support. The clamping forces of both are almost on the same straight line, which can prevent the workpiece from tilting due to unbalanced forces.

[0014] 3. Since the jaws of the three-jaw chuck move synchronously and have a built-in centering function, when applied to the hollow cavity of the flywheel housing, automatic alignment can be achieved to ensure centering. In conjunction with external fixing fixtures and auxiliary support seats, stable clamping can be achieved, and the accuracy of flywheel housing positioning can be further guaranteed.

[0015] 4. Because the chuck is equipped with a contact at the end and a pressure block is equipped at the end of the pressure arm, and the end faces of the contact and the pressure block are both arc-shaped, it is not only easy to replace, but also more suitable for the arc-shaped part of the workpiece, reducing scratches on the workpiece surface and thus avoiding affecting the machining accuracy. Attached Figure Description

[0016] Figure 1 This is a schematic diagram showing the usage state of the flywheel housing quick positioning fixture of this utility model;

[0017] Figure 2 yes Figure 1 Reference diagram showing the hidden parts;

[0018] In the diagram,

[0019] 1. Base; 11. Auxiliary support base;

[0020] 2. Adjust the positioning mechanism; 21. Support column; 22. Limit block; 23. Adjusting push rod;

[0021] 3. Center positioning chuck; 31. Chuck base; 311. Cleaning groove; 32. Chuck claw; 321. Contact head;

[0022] 4. Fixture; 41. Clamping cylinder; 42. Pressure arm; 421. Pressure block;

[0023] 5. Workpiece. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely for explaining the present utility model and are not intended to limit the present utility model.

[0025] See Figures 1-2 This utility model provides a quick positioning fixture for a flywheel housing, comprising: a base 1 and an adjustment and positioning mechanism 2; the base 1 is used for support and is equipped with multiple lifting lugs for easy hoisting. The base 1 is provided with a central positioning chuck 3; the adjustment and positioning mechanism 2 includes a support column 21, a limiting block 22, and an adjusting push rod 23, the support column 21 and the limiting block 22 are both fixedly connected to the base 1, and the adjusting push rod 23 is located on the opposite side of the limiting block 22; the base 1 has several fixing clamps 4, each fixing clamp 4 including a clamping cylinder 41 and a pressure arm 42, one end of the pressure arm 42 is hinged to the clamping cylinder 41, and the extended end of the pressure arm 42 is located on the upper part of the support column 21. The central positioning chuck 3 includes a chuck seat 31 and a jaw 32, the jaw 32 is movably connected to the chuck seat 31, and each jaw 32 is also provided with a contact 321 at its end. Both the center positioning chuck 3 and the fixed fixture 4 are existing technologies. The center positioning chuck 3 is used for center positioning and has many applications in lathes. Its automatic alignment function is used to ensure positional accuracy.

[0026] The positioning process is as follows: Primarily used for processing flywheel housing workpieces (hereinafter referred to as workpiece 5), the hoisting tool lifts workpiece 5 to the top of the base 1. After placement, it is supported by three support columns 21. At this time, one end face of workpiece 5 is close to the limiting block 22. The three jaws 32 on the central positioning chuck 3 move until the contact 321 of the jaws 32 contacts and presses against the inner end face of workpiece 5. The adjusting push rod 23 extends, pressing workpiece 5 against the limiting block 22. The clamping cylinder 41 provides power, driving the pressure arm 42 to rotate. Through the pressure block 421 on the pressure arm 42, it ensures that the lower end face of workpiece 5 is in contact with the limiting block 22 without deformation. Finally, the telescopic rod in the auxiliary support base 11 is raised to contact the lower end face of workpiece 5, further improving the stability of the support. The power source for the above positioning and clamping process is any one of a pneumatic cylinder, electric cylinder, or hydraulic cylinder.

[0027] The pressure arm 42 of this invention has a pressure block 421 fixedly provided at its end. The lower end face of the pressure block 421 and the end face of the contact 321 are both arc-shaped. The arc-shaped or spherical end face can better fit the arc-shaped surface of the flywheel shell workpiece 5 and is less likely to produce obvious indentations.

[0028] The fixing fixture 4 of this utility model consists of three sets, with the central positioning chuck 3 being a three-jaw positioning chuck. The movement direction of each jaw 32 corresponds to the position of the fixing fixture 4. The three-jaw positioning chuck is existing technology and can be obtained directly through purchase. The number of fixing fixtures 4 is generally also three, close to the three jaws 32, resulting in a more stable connection and preventing deformation of the workpiece 5.

[0029] The base 1 of this utility model is also provided with auxiliary support seats 11. There are two auxiliary support seats 11, which are respectively close to the adjusting push rod 23 and the limiting block 22. Each auxiliary support seat 11 has a lifting cylinder in the middle part. The auxiliary support seats 11 are used to finally support the workpiece 5 and prevent its deformation.

[0030] The central positioning chuck 3 of this utility model is also provided with a cleaning groove 311. The cleaning groove 311 is semi-circular and located below the jaw 32. The cleaning groove 311 is used to clean the powdery debris generated during the processing. Generally, a high-pressure air gun is directly introduced into the cleaning groove to achieve rapid cleaning, reduce the time for disassembly and cleaning, reduce the interference of impurities during the positioning process, and especially prevent the jaw 32 from jerking during movement.

[0031] Of course, there may be other embodiments of this utility model. Without departing from the spirit and essence of this utility model, those skilled in the art can make various corresponding changes and modifications based on this utility model, but these corresponding changes and modifications should all fall within the protection scope of the appended claims of this utility model.

Claims

1. A quick positioning fixture for a flywheel housing, characterized in that, Includes: base and adjustment / positioning mechanism; The base is equipped with a central positioning chuck; The adjustment and positioning mechanism includes a support column, a limiting block, and an adjusting push rod. The support column and the limiting block are both fixedly connected to the base, and the adjusting push rod is located on the opposite side of the limiting block. The base has several fixing clamps, each of which includes a clamping cylinder and a pressure arm. One end of the pressure arm is hinged to the clamping cylinder, and the extended end of the pressure arm is located at the upper part of the support column.

2. The flywheel housing quick positioning fixture according to claim 1, characterized in that, The central positioning chuck includes a chuck base and chuck claws, the chuck claws being movably connected to the chuck base, and each chuck claw having a contact at its end.

3. The flywheel housing quick positioning fixture according to claim 2, characterized in that, A pressure block is fixed at the end of the pressure arm, and the lower end face of the pressure block and the end face of the contact are both arc-shaped.

4. The flywheel housing quick positioning fixture according to claim 2, characterized in that, The fixing fixture consists of three sets, and the central positioning chuck is a three-jaw positioning chuck, with the movement direction of each jaw corresponding to the position of the fixing fixture.

5. The flywheel housing quick positioning fixture according to claim 1, characterized in that, The base is also provided with two auxiliary support seats, which are respectively close to the adjusting push rod and the limiting block. Each auxiliary support seat is provided with a lifting cylinder in the middle part.

6. The flywheel housing quick positioning fixture according to claim 2, characterized in that, The central positioning chuck is also provided with a cleaning groove, which is semi-circular and located below the chuck claw.

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