Engine positioning mechanism

Abstract

The utility model discloses an engine positioning mechanism which comprises a base, the base is movably connected with a lifting platform capable of ascending and descending, the base is provided with a lifting assembly, and the lifting platform is movably connected with the base through the lifting assembly. The adjusting frame is provided with a pair of side guide strips with an adjustable distance, and the base is provided with a positioning assembly, a supporting assembly and a limiting assembly; the pair of guide rails can be connected with an engine assembly line, and when cleaning, deburring and partial milling of an engine shell are needed, a worker only needs to push the engine to the guide rails of the machine along the guide rails of the assembly line all the time, and then movement can be completed. Therefore, the number of times for workers to carry the engine shell can be effectively reduced; in addition, the distance between the pair of side guide strips can be adjusted, so that the device can adapt to engine cylinder parts with different sizes.

Description

Technical Field

[0001] The utility model relates to the technical field related to fixtures, and in particular to an engine cylinder positioning mechanism. Background Art

[0002] The engine housing needs to be positioned and fixed when deburring, cleaning, and milling, so a mechanism that can position and fix the engine is needed. Since the engine housing is large and heavy, more workers are needed to move the engine housing from the assembly line to the inside of the equipment when moving. The assembly line that supports the engine cylinder and facilitates the movement of the engine is generally carried out by a pair of guide rails. The engine can slide on the assembly line, and multiple workers also need to cooperate with each other to prevent the engine housing from colliding and causing deformation when placed on the mechanism.

[0003] An existing multi-point positioning support mechanism, patent number CN201610791516.1, a multi-point positioning support mechanism, includes a base plate, a plurality of guide rods in a vertical direction are fixed on the base plate, an upper positioning seat that can move back and forth up and down is provided on the guide rods, and when the upper positioning seat moves to the base plate, the upper positioning seat is at a first height position; a block pin is provided on the upper positioning seat, and a control box that cooperates with the block pin is provided between the guide rods, a rotatable block piece is provided in the control box, and a reset elastic component is provided in cooperation with the block piece, a guide groove is provided on the block piece, and a notch is provided in the guide groove. During the upward movement of the upper positioning seat, the block pin enters the guide groove and is limited by the block piece, and the upper positioning seat is at a second height position.

[0004] However, when the mechanism is in use, multiple workers are also required to lift the engine. Therefore, a positioning fixture or a mechanism is needed to move the engine without lifting the engine. Utility Model Content

[0005] The purpose of the utility model is to provide an engine positioning mechanism to overcome the deficiencies in the prior art.

[0006] In order to achieve the above purpose, the present invention provides the following technical solutions:

[0007] The engine cylinder positioning mechanism includes a base, which is movably connected to a liftable upgrade platform. The base is equipped with a lifting component, and the lifting platform is movably connected to the base through the lifting component; the adjustment frame is equipped with a pair of guide rails with adjustable spacing, and the base is equipped with positioning and support components.

[0008] To further elaborate, the guide rail is provided with a plurality of oblong countersunk holes, and the adjustment frame is provided with a plurality of internal threaded holes whose number and positions correspond to the oblong countersunk holes.

[0009] To further elaborate, bolts are provided through the long elliptical countersunk holes of the guide rails, and the guide rails are fixedly connected to the lifting platform via the bolts.

[0010] To further explain, the lifting assembly includes a pair of lifting cylinders arranged at both ends of the lifting platform, and a group of guide columns are symmetrically provided on both sides of the lifting cylinder. The guide columns are fixedly connected to the lifting platform, and the base is embedded with a linear bearing. The guide columns pass through the linear bearing and are slidably connected to the base; the cylinder body of the lifting cylinder is fixedly connected to the base, and the piston rod of the lifting cylinder is connected to the lifting platform.

[0011] To further elaborate, a hydraulic buffer is also fixedly arranged on the base, and the working piston rod of the hydraulic buffer is used to abut against the lifting platform to play a buffering role.

[0012] Further elaboration: the engine positioning mechanism as described in claim 1 is characterized in that: the side guide bar is fixedly arranged on the top of the lifting platform, the cross-section of the side guide bar is an L-shaped structure, a sunken sliding abutment surface is provided on the top of the side guide bar, and a limiting block is fixedly arranged on the sliding abutment surface.

[0013] To further explain, the limiting assembly includes a product guide block, a floating positioning pin and a clamping assembly. The product limiting block is fixed on the base and arranged vertically upward. The clamping assembly is used to clamp the engine casing to be processed. The floating positioning pin is fixed on the base for precise positioning with the engine cylinder block.

[0014] To further explain, the clamping assembly includes a push-pull cylinder installed on the base and an active top block fixed on the base. A hinge block is fixed on the top of the push-pull cylinder. The piston rod of the push-pull cylinder is hinged with a pressure block. The end of the piston rod is rotatably connected to one end of the pressure fastener. The hinge block is rotatably connected with a connecting rod. The connecting rod is hinged to the middle part of the pressure block. The active top block is arranged below one end of the pressure block for supporting the engine casing; the cylinder body of the push-pull cylinder is fixedly connected to the base.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0016] The present invention is provided with a pair of side guides that can be connected to the engine assembly line. When the engine casing needs to be cleaned, deburred, or cut and milled, the worker only needs to push the engine along the guide rails of the assembly line to the guide rails of the present invention to complete the movement. Therefore, the present invention can effectively reduce the number of times the workers move the engine casing. In addition, the spacing between the pair of side guides of the present invention is adjustable, and can adapt to engine cylinder parts of different sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a three-dimensional structural view of the utility model;

[0018] Figure 2 This is a structural diagram of the utility model from another perspective;

[0019] Figure 3 It is a structural diagram of the clamping component.

[0020] Description of the accompanying drawings:

[0021] 1. Lifting platform; 2. Base; 3. Side guide strip; 4. Long elliptical countersunk hole; 5. Lifting cylinder; 6. Guide column; 7. Hydraulic buffer; 8. Limit block; 9. Product guide block; 10. Floating positioning pin; 11. Push-pull cylinder; 12. Action top block; 13. Articulated block; 14. Pressing block; 15. Connecting rod; 16. Dust removal and air blowing assembly. DETAILED DESCRIPTION

[0022] To make the above-mentioned objects, features, and advantages of the present invention more clearly understood, the following detailed description of specific embodiments of the present invention is provided in conjunction with the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described herein, and those skilled in the art may make similar modifications without departing from the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0023] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may also be an element centered thereon. When an element is considered to be "connected" to another element, it may be directly connected to the other element or there may also be an element centered thereon. When the number of an element is referred to as having "plurality", it may be any number of two or more. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which this invention pertains. The terms used herein in the specification of this invention are intended solely for the purpose of describing specific embodiments and are not intended to limit this invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0025] The present invention will be described in detail below with reference to the embodiments shown in the accompanying drawings:

[0026] like Figure 1-3As shown, in this embodiment, an engine positioning mechanism is provided, including a base, which is movably connected to a lift platform that can be raised and lowered. The lift platform is a frame that can bear and hold the weight of the engine cylinder body. The base is equipped with a lifting assembly, and the lift platform is movably connected to the base through the lifting assembly; the adjustment frame is equipped with a pair of side guide strips with adjustable spacing, and the spacing between the side guide strips can be adjusted. The base is equipped with a limit assembly, which can clamp the engine casing to be processed onto the guide rail without moving.

[0027] In this embodiment, the spacing between the side guide rails is adjusted by providing a plurality of oblong countersunk holes in the guide rails and a plurality of internally threaded holes in the lifting platform corresponding in number and position to the oblong countersunk holes. Bolts penetrate the oblong countersunk holes in the side guide rails, securing the side guide rails to the adjustment frame via the bolts. Therefore, to adjust the spacing, simply loosen the bolts, and the guide rails move relative to the bolts through the oblong countersunk holes.

[0028] In this embodiment, the lifting assembly includes a pair of lifting cylinders stacked and arranged at both ends of the lifting platform. The lifting cylinders are used to control the relative position of the adjustment frame and the base. A pair of guide columns are symmetrically arranged on both sides of the lifting cylinder. Preferably, four guide columns are required on this adjustment frame. The guide columns are fixedly connected to the lifting platform. The base is embedded with a linear bearing, and the guide columns pass through the linear bearing and are slidably connected to the base; the cylinder body of the lifting cylinder is fixedly connected to the base, and the piston rod of the lifting cylinder is fixedly connected to the lifting platform.

[0029] Specifically, before using the present invention, the user needs to adjust the distance between the lifting platforms to match the distance between the assembly line guide rails, lock the gap, and then start the machine. During operation, the lifting cylinder is first in the lifting state. After the worker pushes the engine cylinder onto the side guide strips of the present invention, the lifting cylinder controls the lifting platform to descend, thereby also moving the engine cylinder downward. Once in place, the engine cylinder is precisely positioned and then clamped by the clamping assembly for the next step of processing. Therefore, the present invention can reduce the number of times workers have to move the engine housing.

[0030] In this embodiment, a hydraulic buffer is also fixedly provided on the base, and the working piston rod of the hydraulic buffer is used to abut against the lifting platform. The installation of the hydraulic buffer can protect the lifting cylinder and increase the service life of the lifting cylinder.

[0031] In this embodiment, the side guide bar is fixedly arranged on the top of the adjustment frame. The cross-section of the side guide bar is an L-shaped structure. A sunken sliding abutment surface is provided on the top of the side guide bar. The engine cylinder body abuts against the above-mentioned sliding abutment surface when moving. A limiting block is fixedly provided on the sliding abutment surface. When the worker pushes the engine housing, the positioning block can limit the engine housing and prevent it from continuing to move forward, thereby achieving the purpose of limiting.

[0032] In this embodiment, the limiting assembly includes a product guide block, a floating locating pin, and a clamping assembly. The product guide block is fixed on the base and arranged vertically upward. The top side wall of the product guide block is chamfered. When the lifting platform descends, the end of the product guide block will be inserted into the corresponding position of the engine cylinder. At the same time, since the engine cylinder may have slight angle problems after moving into place, the product guide block can provide the final movement guide for the engine housing. The clamping assembly is used to clamp the engine housing to be processed. The floating locating pin is fixed on the base for abutting against the engine housing. The floating locating pin can support the engine housing and can provide buffering after descending into place.

[0033] In this embodiment, the clamping assembly includes a push-pull cylinder installed on the base and an active top block fixedly provided on the base. A hinge block is fixedly provided on the top of the push-pull cylinder. Specifically, the hinge block is fixedly provided on the top of the cylinder body of the push-pull cylinder. The piston rod of the push-pull cylinder is hinged with a fastener. The push-pull cylinder can control the fastener to flip 180 degrees. The end of the piston rod is rotatably connected to one end of the fastener. The hinge block is rotatably connected with a connecting rod, which is hinged to the middle part of the fastener. Therefore, when the piston rod of the push-pull cylinder descends, the fastener will flip, and the connecting rod will also flip around the hinge block. When the fastener is needed to clamp (that is, tighten) the engine casing, the piston rod of the push-pull cylinder is pushed upward again, and the fastener flips back again. Specifically, an effective top block is fixedly provided on the base, and the effective top block is arranged below one end of the fastener for abutting the engine casing, so that when the fastener flips back, the fastener can cooperate with the effective top block to clamp the engine casing; the cylinder body of the push-pull cylinder is fixedly connected to the base.

[0034] A dust removal and blowing assembly is also fixedly arranged on the base, which can clean waste dust after clamping the engine housing.

[0035] The technical features of the above-described embodiments can be combined in any manner. To simplify the description, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there are no contradictions in the combination of these technical features, they should be considered to be within the scope of this specification. For those skilled in the art, without departing from the concept of the utility model, they can also make several variations and improvements, which fall within the scope of protection of the utility model. Therefore, the scope of protection of this utility model patent shall be based on the appended claims.

Claims

1. Engine positioning mechanism, characterized by: It includes a base, which is movably connected to a lift platform, and the base is equipped with a lift component, and the lift platform is movably connected to the base through the lift component; the adjustment frame is equipped with a pair of side guide strips with adjustable spacing, and the base is equipped with positioning, support, and limit components.

2. The engine positioning mechanism according to claim 1, wherein: The side guide strip is provided with a plurality of long oval countersunk holes, and the adjustment frame is provided with a plurality of internal threaded holes whose number and positions correspond to the long oval countersunk holes.

3. The engine positioning mechanism according to claim 2, wherein: Bolts are provided through the long elliptical countersunk holes of the side guide strips, and the side guide strips are fixedly connected to the lifting platform through the bolts.

4. The engine positioning mechanism according to claim 1, wherein: The lifting assembly includes a pair of lifting cylinders arranged at both ends of the lifting platform. A group of guide columns are symmetrically arranged on both sides of the lifting cylinder. The guide columns are fixedly connected to the lifting platform. The base is embedded with a linear bearing, and the guide columns pass through the linear bearing and are slidably connected to the base; the cylinder body of the lifting cylinder is fixedly connected to the base, and the piston rod of the lifting cylinder is connected to the lifting platform.

5. The engine positioning mechanism according to claim 1, wherein: A hydraulic buffer is also fixedly arranged on the base, and the working piston rod of the hydraulic buffer is used to abut against the lifting platform to play a buffering role.

6. The engine positioning mechanism according to claim 1, wherein: The side guide bar is fixedly arranged on the top of the lifting platform. The cross section of the side guide bar is an L-shaped structure. The top of the side guide bar is provided with a sunken sliding abutment surface, and a limiting block is fixedly arranged on the sliding abutment surface.

7. The engine positioning mechanism according to claim 1, wherein: The limiting assembly includes a product guide block, a floating positioning pin and a clamping assembly. The product limiting block is fixed on the base and arranged vertically upward. The clamping assembly is used to clamp the engine casing to be processed. The floating positioning pin is fixed on the base for precise positioning with the engine cylinder block.

8. The engine positioning mechanism according to claim 7, wherein: The clamping assembly includes a push-pull cylinder installed on the base and an active top block fixedly arranged on the base. A hinge block is fixedly arranged on the top of the push-pull cylinder. The piston rod of the push-pull cylinder is hinged to the pressure block. The end of the piston rod is rotatably connected to one end of the pressure buckle. The hinge block is rotatably connected to a connecting rod. The connecting rod is hinged to the middle part of the pressure block. The active top block is arranged below one end of the pressure block for supporting the engine casing; the cylinder body of the push-pull cylinder is fixedly connected to the base.

Images