阅读说明：本技术 铝缸盖导管铰孔工艺装置 (Aluminum cylinder cover conduit reaming process device ) 是由 占长安 唐俊林 兰天 余明 于 2019-09-03 设计创作，主要内容包括：本发明涉及铝缸盖导管铰孔工艺装置,安装在机床上,用于定位夹紧缸盖,包括：固定在机床上的工装底板、对称固定在工装底板顶部和底部的一对支撑板、安装在支撑板之间的立轴、与立轴滑动连接的轴承座、固定在轴承座外壁上的滑台底板、固定在滑台底板上的定位板；立轴有多根,且对称设置；定位板顶部设有两个定位销,定位销的长度大于缸盖最大截面宽度的二分之一。本装置通过设置定位板和定位销实现一面两销的完全定位,通过设置立轴和轴承实现对定位板位置的灵活调度,通过设置轴承座容纳轴承并支撑滑台底板,通过设置行程挡块和对各部分元件的限制提升定位的精度和稳定性。(The invention relates to a reaming process device for a guide pipe of an aluminum cylinder cover, which is arranged on a machine tool and is used for positioning and clamping the cylinder cover, and comprises the following components: the tool comprises a tool bottom plate fixed on a machine tool, a pair of supporting plates symmetrically fixed at the top and the bottom of the tool bottom plate, a vertical shaft arranged between the supporting plates, a bearing seat in sliding connection with the vertical shaft, a sliding table bottom plate fixed on the outer wall of the bearing seat, and a positioning plate fixed on the sliding table bottom plate; a plurality of vertical shafts are symmetrically arranged; two positioning pins are arranged at the top of the positioning plate, and the length of each positioning pin is greater than one half of the maximum section width of the cylinder cover. This device realizes the complete location of one side two round pins through setting up locating plate and locating pin, realizes the nimble dispatch to the locating plate position through setting up vertical scroll and bearing, holds the bearing and supports the slip table bottom plate through setting up the bearing frame, promotes the precision and the stability of location through setting up the stroke dog and to the restriction of each part component.)

1. Aluminium cylinder cap pipe reaming process units installs on the lathe for the tight cylinder cap (8) of positioning clamp, its characterized in that includes: the tool comprises a tool bottom plate (1) fixed on a machine tool, a pair of supporting plates (2) symmetrically fixed at the top and the bottom of the tool bottom plate (1), a vertical shaft (3) arranged between the supporting plates (2), a bearing seat (4) in sliding connection with the vertical shaft (3), a sliding table bottom plate (5) fixed on the outer wall of the bearing seat (4), and a positioning plate (6) fixed on the sliding table bottom plate (5); a plurality of vertical shafts (3) are symmetrically arranged; two positioning pins (63) are arranged at the top of the positioning plate (6), and the length of each positioning pin (63) is greater than one half of the maximum section width of the cylinder cover (8).

2. An aluminium cylinder head conduit reaming process unit according to claim 1, characterized in that said positioning pins (63) are distributed diagonally.

3. The aluminum cylinder cover guide pipe reaming process device according to claim 1, characterized in that a bearing (41) is fixed in the bearing seat (4), and a retainer ring (42) is fixed at the outer end of the bearing seat (4); the bearing (41) is a sliding bearing.

4. The aluminum cylinder cover guide pipe reaming process device according to claim 1, characterized in that the axes of the vertical shafts (3) are located on the same horizontal plane, and the horizontal plane is parallel to the tooling bottom plate (1).

5. The aluminum cylinder cover conduit reaming process device according to claim 1, characterized in that the top surface of the sliding table bottom plate (5) is higher than the highest position of the bearing seat (4), and the bottom surface of the sliding table bottom plate (5) is lower than the lowest position of the bearing seat (4).

6. The aluminum cylinder cover conduit reaming process device according to claim 1, characterized in that a plurality of bearing seats (4) are arranged on the same vertical shaft (3); the bearing seats (4) are positioned on different vertical shafts (3) and positioned on the same horizontal line and are connected with each other.

7. The aluminum cylinder cover conduit reaming process device according to claim 1, characterized in that the top of the supporting plate (2) is provided with a projecting fixing plate (23); stroke stop blocks (7) are installed on the outer side of the supporting plate (2), and the stroke stop blocks (7) are located right above the sliding table bottom plate (5).

8. The aluminum cylinder head conduit reaming process device according to claim 7, characterized in that an adjusting bolt (72) is connected to the inside of the travel block (7); the adjusting bolt (72) includes: the stroke limiting device comprises a nut (721) fixed on the top of the fixing plate (23), a threaded section (722) in threaded connection with the stroke stop block (7), and a limiting block (723) fixed at the bottom of the threaded section (722).

Technical Field

The invention relates to the technical field of clamps, in particular to a reaming process device for a guide pipe of an aluminum cylinder cover.

Background

The cylinder cover of diesel engine is one of the key parts for four-stroke work of internal combustion engine. The aluminum cylinder cover is an acting part arranged on the cylinder, participates in sealing the space of the cylinder and forms a combustion chamber, is used for installing an air inlet valve and an air outlet valve and installing the air inlet pipe and the air outlet pipe, can bear combustion pressure and conduct the room temperature in the cylinder, and is a cylinder body component for realizing heat storage and heat dissipation functions. The aluminum cylinder cover is also a leading accessory of the internal combustion engine of the company from casting to finished metal product input to output, wherein two valve guide pipe holes of the aluminum cylinder cover are matched with the valves to form an open loop and a closed loop in the working process. Therefore, the conduit hole is a key item in the finishing process and requires the IT precision level to be one-level precision. The two guide pipe holes are processed in the following steps: drilling, rough boring, fine boring and fine reaming, wherein the roughness is Ra0.4, and the tolerance of the hole is H6.

In traditional finish reaming process, the cylinder cap is placed on a drilling machine, and by drill chuck centre gripping reamer handle of a knife, the left hand cylinder cap right hand feeds, and such course of working has a great deal of defect: (1) the lower end of the positioning surface of the cylinder cover is only a flat plate, the degree of freedom is large when the positioning surface is placed, the positioning is not carried out when the cylinder cover is in a positioning-lacking state, and the cylinder cover is hinged and processed without positioning, so that the processing process is very unstable, and the processing precision of a hinged hole is influenced; (2) when reaming, the mechanically-clamped reamer enters and must be rightly aligned with the conduit hole along the stabilizing palm of a worker, and the processing mode has the defect of unstable positioning and clamping state, so that the processing process has great potential safety hazard; (3) the mode of depending on an operator to control the machining precision leads to low machining efficiency of the cylinder cover and influences the delivery date of a user; (4) the processing depends on the operation level of workers, so that the product quality is unstable, and the cylindricity of the hole series cannot be ensured. Therefore, on the basis, a novel finish reaming fixture for one surface and two pins of the cylinder cover is designed.

Disclosure of Invention

Aiming at the defects in the prior art, the invention provides an aluminum cylinder cover guide pipe reaming process device and an aluminum cylinder cover guide pipe reaming process device.

In order to solve the problems, the technical scheme adopted by the invention is as follows:

aluminium cylinder cap pipe fraising process units installs on the lathe for the tight cylinder cap of positioning clamp includes: the tool comprises a tool bottom plate fixed on a machine tool, a pair of supporting plates symmetrically fixed at the top and the bottom of the tool bottom plate, a vertical shaft arranged between the supporting plates, a bearing seat in sliding connection with the vertical shaft, a sliding table bottom plate fixed on the outer wall of the bearing seat, and a positioning plate fixed on the sliding table bottom plate; a plurality of vertical shafts are symmetrically arranged; two positioning pins are arranged at the top of the positioning plate, and the length of each positioning pin is greater than one half of the maximum section width of the cylinder cover.

As an improvement of the technical scheme, the positioning pins are distributed in a diagonal manner.

As an improvement of the technical scheme, a bearing is fixed in the bearing seat, and a check ring is fixed at the outer end of the bearing seat; the bearing is a sliding bearing.

As an improvement of the technical scheme, the axes of the vertical shafts are positioned on the same horizontal plane, and the horizontal plane is parallel to the tool bottom plate.

As an improvement of the technical scheme, the top surface of the sliding table bottom plate is higher than the highest position of the bearing seat, and the bottom surface of the sliding table bottom plate is lower than the lowest position of the bearing seat.

As an improvement of the technical scheme, a plurality of bearing seats are arranged on the same vertical shaft; the bearing seats are positioned on different vertical shafts and positioned on the same horizontal line and are connected with each other.

As an improvement of the technical scheme, the top of the supporting plate is provided with a fixing plate which extends out; and a travel stop block is arranged on the outer side of the supporting plate and is positioned right above the sliding table bottom plate.

As an improvement of the technical scheme, an adjusting bolt is connected inside the travel stop block; the adjusting bolt includes: the stroke limiting device comprises a nut fixed on the top of the fixing plate, a thread section connected with the stroke stop dog through threads, and a limiting block fixed at the bottom of the thread section.

Compared with the prior art, the invention has the following beneficial effects:

this device realizes the complete location of one side two round pins through setting up locating plate and locating pin, realizes the nimble dispatch to the locating plate position through setting up vertical scroll and bearing, holds the bearing and supports the slip table bottom plate through setting up the bearing frame, promotes the precision and the stability of location through setting up the stroke stop and to the restriction of each part component, on the accurate basis in location, has eliminated the potential safety hazard in the time of processing.

Drawings

FIG. 1 is a schematic view of a clamping structure of the process apparatus of the present invention;

FIG. 2 is a schematic structural view of a process apparatus according to the present invention;

FIG. 3 is a front view of a process unit according to the present invention;

FIG. 4 is a left side view of a process unit according to the present invention;

fig. 5 is a partial view a of fig. 4.

In the figure: 1-tool bottom plate, 2-supporting plate, 21-first locking screw, 22-second locking screw, 23-fixing plate, 3-vertical shaft, 4-bearing seat, 41-bearing, 42-retainer ring, 5-sliding table bottom plate, 6-positioning plate, 61-third locking screw, 62-hinge hole, 63-positioning pin, 7-stroke stop block, 71-fourth locking screw, 72-adjusting bolt, 721-nut, 722-thread section, 723-limiting block and 8-cylinder cover.

Detailed Description

The present invention will be described with reference to specific examples.

Fig. 1 is a schematic view of a clamping structure of a process device of the present invention, fig. 2 is a schematic view of a structure of a process device of the present invention, as shown in fig. 1 and fig. 2, the process device of the present invention is mounted on a machine tool for positioning and clamping a cylinder head 8, and includes: the tool comprises a tool bottom plate 1 fixed on a machine tool, a pair of supporting plates 2 symmetrically fixed at the top and the bottom of the tool bottom plate 1, a vertical shaft 3 installed between the supporting plates 2, a bearing seat 4 in sliding connection with the vertical shaft 3, a sliding table bottom plate 5 fixed on the outer wall of the bearing seat 4, and a positioning plate 6 fixed on the bottom sliding table bottom plate 5. The vertical shafts 3 are provided with a plurality of symmetrical parts. Two positioning pins 63 are arranged at the top of the positioning plate 6, and the length of each positioning pin 63 is greater than one half of the maximum section width of the cylinder cover 8.

The device aims to realize the positioning and clamping of the cylinder cover 8. Wherein, the locating plate 6 is attached to the surface of the cylinder cover 8, and two degrees of freedom are determined through the plane location of the locating plate 5. Because the area of the joint of the cylinder cover 8 and the positioning plate 6 is not too large, the positioning device still belongs to facet positioning. And the positioning with two degrees of freedom is realized by using two positioning pins 63 on the positioning plate 6, the length of the positioning pins 63 is limited, and the two degrees of freedom of the cylinder cover 8 can be limited by adopting long pin positioning. The arrangement can position and limit a series of cylinder covers 8, and the cylinder covers 8 are completely positioned to have better machining precision and machining stability after being clamped. Here vertical scroll 3 plays the fixed support and acts as the slip axle, and slip table bottom plate 5 slides along vertical scroll 3 for anchor clamps in this device have better adaptability, can be under the condition that does not influence the location that cylinder cap 8 has been accomplished, according to the processing requirement nimble upper and lower position of adjusting cylinder cap 8.

The positioning pins 63 are diagonally distributed. The two positioning pins 63 cannot be located on the same vertical line or horizontal line, so that the positioning reliability is lowered, there is a possibility that the positioning cannot be completely performed, and thus diagonal distribution is provided. The positioning pin 63 is matched with a hole in the cylinder cover 8 to play a positioning role. The clamp of the device is a special clamp for the series of cylinder covers 8.

A bearing 41 is fixed in the bearing seat 4, and a retainer ring 42 is fixed at the outer end of the bearing seat 4. The bearing 41 is a sliding bearing. The bearing seat 4 is used for fixing and supporting the sliding table bottom plate 5, and the sliding bearing can improve the stability and flexibility of sliding.

The axes of the vertical shafts 3 are positioned on the same horizontal plane, and the horizontal plane is parallel to the tool bottom plate 1. The top surface of the sliding table bottom plate 5 is higher than the highest position of the bearing seat 4, and the bottom surface of the sliding table bottom plate 5 is lower than the lowest position of the bearing seat 4. The limitation to the vertical shafts 3 enables the distances from the vertical shafts to the sliding table bottom plate 5 to be equal, so that the installation and the connection are convenient, the plurality of vertical shafts 3 are all connected with the sliding table bottom plate 5, the moving stability of the sliding table bottom plate 5 is improved, and the rotation possibility of single-line multipoint connection is eliminated. The limitation on the top surface and the bottom surface of the sliding table bottom plate 5 ensures that only limiting surfaces exist during the subsequent limiting.

The bearing seats 4 on the same vertical shaft 3 are multiple. The bearing blocks 4 which are positioned on different vertical shafts 3 and positioned on the same horizontal line are mutually connected. The bearing seats 4 on a plurality of different vertical shafts 3 are associated in the arrangement mode, so that the area of the fixed sliding table bottom plate 5 is increased, the bearing seats 4 on the vertical shafts 3 are mutually limited, the bearing seats bear stress, and the stability of the sliding table bottom plate 5 during moving can be improved. The bearings 41 on the same horizontal line are fixedly connected, so that the top surfaces and the bottom surfaces of the connecting structures on different vertical shafts 3 are the same, the installation is convenient, and the subsequent limitation on the sliding table bottom plate 5 is facilitated.

Fig. 4 is a left side view of the process apparatus of the present invention, fig. 5 is a partial view a of fig. 4, and as shown in fig. 4 and 5, the top of the support plate 2 is provided with a protruding fixing plate 23. Stroke stop 7 is all installed in the backup pad 2 outside, stroke stop 7 is located directly over slip table bottom plate 5. Set up travel stop 7, avoid slip table bottom plate 5 to remove excessively, collision backup pad 2 leads to the device to damage or destroy the location relation.

An adjusting bolt 72 is connected to the inside of the stroke stopper 7. The adjusting bolt 72 includes: a nut 721 fixed on the top of the fixing plate 23, a threaded section 722 connected with the travel stop 7 through a thread, and a limit block 723 fixed on the bottom of the threaded section 722. On the basis, the adjusting bolt 72 is arranged, and the limit of different margins is realized by adjusting the combined section of the threaded section 722 and the travel stop 7. And a limiting block 723 is arranged, and when the sliding table bottom plate 5 moves to be in contact with the limiting block 723, the sliding table bottom plate 5 stops moving and the locking mechanism is locked. By the arrangement of the stroke stop 7 and the limiting block 723, the movement of the sliding table bottom plate 5 is limited, the sliding table bottom plate 5 is protected when being adjusted, and the positioning stability is ensured.

This device realizes the complete location of one side two round pins through setting up locating plate and locating pin, realizes the nimble dispatch to the locating plate position through setting up vertical scroll and bearing, holds the bearing and supports the slip table bottom plate through setting up the bearing frame, promotes the precision and the stability of location through setting up the stroke stop and to the restriction of each part component, on the accurate basis in location, has eliminated the potential safety hazard in the time of processing.

According to the locking screw position shown on the figure, the clamp can be used after being installed, the process efficiency is improved while the precision and quality of finished products are improved, and the clamp is convenient to use, safe and reliable. It should be noted that the clamping device is implemented in cooperation with the reaming device, which is known in the art and will not be described herein.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.