阅读说明：本技术 一种气门弹簧底座的装配装置 (Assembling device for valve spring base ) 是由 朱洪磊 李加彬 尧琼林 黄涛 张劲松 于 2019-11-30 设计创作，主要内容包括：本发明公开了一种气门弹簧底座的装配装置,包括收集板和装配工装；收集板上开设有相同的m排盲孔,每排盲孔的个数n与缸盖上的进气侧的气门导管的个数k相等且布置位置对应,装配工装包括压紧组件、弹性连接件和吸附组件,压紧组件包括压板和一排压杆,吸附组件包括支撑板、n个磁铁和一排套筒,支撑板上开设有与套筒连通的装配通孔,n个磁铁固定连接在n个套筒的下端,弹性连接件的一端与压板连接、另一端与支撑板连接,n根压杆分别通过n个装配通孔伸入n个套筒内,n个磁铁能分别吸附放置在每排的n个盲孔内的n个气门弹簧底座。采用本发明能实现一次完成进气侧或排气侧的气门弹簧底座的装配,避免出现多装或漏装,同时有效提高装配效率。(The invention discloses an assembling device of a valve spring base, which comprises a collecting plate and an assembling tool; the same m rows of blind holes are formed in the collecting plate, the number n of each row of blind holes is equal to the number k of the valve guide pipes on the air inlet side of the cylinder cover, and the arrangement positions of the blind holes correspond to each other, the assembly tool comprises a compression assembly, an elastic connecting piece and an adsorption assembly, the compression assembly comprises a compression plate and a row of compression rods, the adsorption assembly comprises a support plate, n magnets and a row of sleeves, an assembly through hole communicated with the sleeves is formed in the support plate, n magnets are fixedly connected to the lower end of n sleeves, one end of the elastic connecting piece is connected with the compression plate, the other end of the elastic connecting piece is connected with the support plate, n compression rods stretch into n sleeves through n assembly through holes respectively, and n magnets can adsorb n valve spring bases placed in n blind holes. The invention can realize the assembly of the valve spring base at the air inlet side or the air exhaust side at one time, avoid the occurrence of multi-assembly or neglected assembly and effectively improve the assembly efficiency at the same time.)

1. The utility model provides an assembly quality of valve spring base which characterized in that: comprises a collecting plate (1) and an assembling tool; the collecting plate (1) is provided with m rows of same blind holes (11), the number n of each row of blind holes is equal to the number k of the valve guide pipes (4) at the air inlet side on the cylinder cover (5), the distribution positions of the n blind holes of each row correspond to the arrangement positions of the k valve guide pipes at the air inlet side on the cylinder cover, and the valve spring bases (3) can be placed in the blind holes and are in clearance fit with the blind holes; the assembling tool comprises a pressing component (21), an elastic connecting piece (22) and an adsorption component (23), wherein the pressing component (21) comprises a pressing plate (211) and a row of pressing rods (212) vertically fixed on the lower surface of the pressing plate, the row of pressing rods is provided with n pressing rods, the distribution positions of the n pressing rods correspond to the distribution positions of n blind holes in each row, the diameter of each pressing rod (212) is larger than that of a central hole of a boss (32) of the valve spring base (3), the adsorption component (23) comprises a supporting plate (231), n magnets (233) and a row of sleeves (232) vertically fixed on the lower surface of the supporting plate, the number of the sleeves in the row is n, the distribution positions of the n sleeves correspond to the distribution positions of the n blind holes in each row, n assembling through holes communicated with the sleeves are formed in positions, corresponding to the n sleeves, on the supporting plate (231), the n magnets (233) are fixedly connected to the lower ends of the n sleeves, one end of an elastic connecting piece (22) is connected with a pressing plate (211), the other end of the elastic connecting piece is connected with a supporting plate (231), n pressing rods (212) respectively extend into n sleeves (232) through n assembling through holes, the pressing/releasing elastic connecting piece enables a pressing component (21) to move relative to an adsorption component (23) along the compression/extension direction of the elastic connecting piece, and n magnets can respectively adsorb n valve spring bases (3) placed in n blind holes of each row; wherein m is an integer and m is more than or equal to 1.

2. An assembly apparatus of a valve spring seat according to claim 1, characterized in that: the thickness of a body (31) of the valve spring base (3) is larger than the depth of the blind holes (11), positioning pins (12) are arranged in the blind holes at two ends in each row of blind holes, and the diameters of the positioning pins (12) are equal to the diameter of the valve guide pipe (4); the lower end of the pressure lever (212) is provided with a pin hole (2121), the diameter of the pin hole is larger than that of the positioning pin (12) and smaller than the outer diameter of the boss (32), and the depth of the pin hole is larger than or equal to the height of the positioning pin (12).

3. An assembly apparatus of a valve spring seat according to claim 1, characterized in that: adsorption component (23) still includes n end cover (234), and ladder through-hole (2341) have been seted up at the center of end cover (234), and the big pore section of ladder through-hole is provided with the internal thread, the lower tip of sleeve (232) has the external screw thread, n individual end cover respectively with n individual sleeve (232) spiro union, n individual magnet (233) are located respectively between n individual end cover and n individual sleeve, and the up end of magnet supports with telescopic lower terminal surface and leans on, and the lower terminal surface of magnet supports with the ladder face of the ladder through-hole of end cover and leans on, and the internal diameter of magnet is less than the aperture of the aperture section of ladder through-hole and is greater than the external diameter of boss (32), and the external diameter of body (31) of valve spring base (3) is less than the aperture of the aperture section of ladder through-hole and is greater than the internal diameter of magnet, and the external diameter of end cover (234.

4. An assembly apparatus of a valve spring seat according to claim 1, characterized in that: the pressing assembly (21) further comprises two pressing plate handles (213), and the two pressing plate handles (213) are fixedly connected to two ends of the pressing plate (211) respectively; the adsorption component (23) further comprises two support plate handles (235), and the two support plate handles (235) are fixedly connected to two ends of the support plate (231) respectively.

5. The valve spring seat assembling apparatus according to any one of claims 1 to 4, wherein: the number of the elastic connecting pieces (22) is four, two first connecting through holes (214) are respectively formed in two end parts of the pressing plate (211), two second connecting through holes (236) are respectively formed in corresponding parts of two ends of the supporting plate (231), and the four elastic connecting pieces (22) are respectively matched with the four first connecting through holes and the four second connecting through holes; each elastic connecting piece (22) comprises a bolt (221), a spring (222) and a nut (223), the spring (222) is located between the pressing plate (211) and the supporting plate (231), the bolt (221) penetrates through the second connecting through hole (236), the spring (222) and the first connecting through hole (214) to be in threaded connection with the nut (223), the pressing plate (211) is connected with the supporting plate (231), and the spring (222) is in a partial compression state.

Technical Field

The invention relates to an auxiliary assembly device for engine parts, in particular to an assembly device for a valve spring base.

Background

The valve spring mount is a common engine component that fits through a valve guide and into a valve spring mounting hole in the cylinder head. At present, valve spring bases are basically assembled one by one, for example, a valve spring base installation device disclosed in CN102562210A includes a housing, a toggle gear, a pressure arm, a return spring, a push-out baffle and a valve spring base guide rod; the operator only needs to aim at the valve spring base with the guide rod and place the point, presses L type pressure arm again and can place valve spring base, compares with simple manual operation, has improved some work efficiency, but can only adorn a valve spring base once, has the dress more or neglected loading problem to operator's intensity of labour is also than higher.

Disclosure of Invention

The invention aims to provide an assembling device of a valve spring base, which is used for realizing the assembly of the valve spring base at an air inlet side or an air exhaust side at one time, avoiding the occurrence of multiple mounting or neglected mounting and effectively improving the assembling efficiency.

The assembling device of the valve spring base comprises a collecting plate and an assembling tool; the collecting plate is provided with m rows of same blind holes, the number n of the blind holes in each row is equal to the number k of the valve guides at the air inlet side on the cylinder cover, the distribution position of the n blind holes in each row corresponds to the arrangement position of the k valve guides at the air inlet side on the cylinder cover (the k valve guides at the air inlet side on the cylinder cover are arranged in a row, the number of the valve guides at the air exhaust side on the cylinder cover is also k, the k valve guides at the air exhaust side are also arranged in a row, the arrangement mode of the k valve guides at the air inlet side is the same as that of the k valve guides at the air inlet side, namely, the k valve guides at the air inlet side and the k valve guides at the air exhaust side are symmetrically arranged), and the valve spring base can be placed in the blind holes; the assembling tool comprises a pressing component, an elastic connecting piece and an adsorption component, wherein the pressing component comprises a pressing plate and a row of pressing rods vertically fixed on the lower surface of the pressing plate, the row of pressing rods is provided with n pressing rods, the distribution positions of the n pressing rods correspond to the distribution positions of the n blind holes of each row, the diameter of each pressing rod is larger than that of a center hole of a boss of the valve spring base, the adsorption component comprises a supporting plate, n magnets and a row of sleeves vertically fixed on the lower surface of the supporting plate, the number of the rows of sleeves is n, the distribution positions of the n sleeves correspond to the distribution positions of the n blind holes of each row, n assembling through holes communicated with the sleeves are formed in the positions, corresponding to the n sleeves, of the supporting plate, the n magnets are fixedly connected to the lower ends of the n sleeves, one end of the elastic connecting piece is connected with the pressing plate, the other end of the elastic connecting piece is connected with the supporting plate, the pressing component can move relative to the adsorption component along the compression/extension direction of the elastic connecting piece by pressing/releasing the elastic connecting piece, and the n magnets can respectively adsorb the n valve spring bases arranged in the n blind holes of each row; wherein m is an integer and m is more than or equal to 1.

Preferably, the thickness of the body of the valve spring base is greater than the depth of the blind holes, positioning pins are arranged in the blind holes at two ends of each row of blind holes, and the diameter of each positioning pin is equal to that of the valve guide pipe; the lower end of the pressure lever is provided with a pin hole, the diameter of the pin hole is larger than that of the positioning pin and smaller than the outer diameter of the boss, and the depth of the pin hole is larger than or equal to the height of the positioning pin. The assembly tool is positioned by matching the positioning pin with the pin hole in the pressure rod, so that an operator can more conveniently and quickly adsorb the valve spring base by using the assembly tool, and deviation is not easy to occur.

Preferably, the adsorption component still includes n end covers, and the ladder through-hole has been seted up at the center of end cover, and the macropore section of ladder through-hole is provided with the internal thread, telescopic lower tip has the external screw thread, n end cover respectively with a sleeve spiro union of n, n magnet is located respectively between a plurality of end covers of n and a plurality of sleeves, and the up end of magnet supports with telescopic lower terminal surface and leans on, and the lower terminal surface of magnet supports with the ladder face of the ladder through-hole of end cover and leans on, and the internal diameter of magnet is less than the aperture of the aperture section of ladder through-hole and is greater than the external diameter of boss, the external diameter of valve spring base's body is less than the aperture of the aperture section of ladder through-hole and is greater than the internal diameter of magnet. The end cover can avoid magnet not dropping, and the size relation of aperture, internal diameter, external diameter of magnet, end cover and valve spring base has guaranteed the absorption valve spring base that magnet can be better, has also guaranteed to pick up valve spring base after can be accurate, quick with valve spring base assembly target in place.

Preferably, the pressing assembly further comprises two pressing plate handles, and the two pressing plate handles are fixedly connected to two ends of the pressing plate respectively; the adsorption component further comprises two supporting plate handles which are respectively and fixedly connected to the two ends of the supporting plate. When an operator holds the pressing plate handle and the supporting plate handle to pick up, transfer and assemble the valve spring base, the operation is more convenient.

Preferably, the number of the elastic connecting pieces is four, two first connecting through holes (four total first connecting through holes) are respectively formed at two end parts of the pressing plate, two second connecting through holes (four total second connecting through holes) are respectively formed at corresponding parts at two ends of the supporting plate, and the four elastic connecting pieces are respectively matched with the four first connecting through holes and the four second connecting through holes; each elastic connecting piece comprises a bolt, a spring and a nut, the spring is located between the pressing plate and the supporting plate, the bolt penetrates through the second connecting through hole, the spring and the first connecting through hole to be in threaded connection with the nut, the pressing plate is connected with the supporting plate, and the spring is in a partial compression state. Utilize four elastic connecting pieces to compress tightly the subassembly and be connected with adsorption component at both ends to make assembly fixture atress more even, balanced, the transfer in-process disappearance after the assurance valve spring base that can be better is picked up drops.

The valve spring bases are placed in the blind holes of the collecting plate, one row of valve spring bases are picked up by an assembly tool at a time and then are directly assembled on the valve guide pipe on the air inlet side or the air exhaust side of the cylinder cover, so that the valve spring bases on the air inlet side or the air exhaust side are assembled at a time, the problem of multi-assembly or neglected assembly is avoided, the assembly efficiency is effectively improved, and the labor intensity of an operator is reduced; the invention has simple structure, reliable performance, convenient installation and use and strong practicability, and is suitable for popularization and application.

Drawings

Fig. 1 is a schematic view of the assembly position of a valve spring base on a cylinder head.

Fig. 2 is a schematic structural diagram of the collecting plate in this embodiment.

Fig. 3 is a schematic view of the valve spring seat of the present embodiment placed on the collecting plate.

Fig. 4 is a schematic structural diagram of the assembly fixture in the embodiment.

Fig. 5 is a schematic structural diagram of the pressing assembly in this embodiment.

Fig. 6 is a schematic structural diagram of the elastic connecting member in this embodiment.

Fig. 7 is a schematic structural diagram of the adsorption assembly in the present embodiment.

Fig. 8 is a schematic structural diagram of the support plate and the sleeve in this embodiment.

Fig. 9 is a schematic structural diagram of the magnet in this embodiment.

Fig. 10 is a schematic structural view of the end cap in this embodiment.

Fig. 11 is a schematic view of the assembly tool in the free state in this embodiment.

Fig. 12 is a schematic view of the present embodiment when the spring is pressed to extend the pressing rod.

Fig. 13 is a partial schematic view of the valve spring base compressed by the compression rod according to the embodiment.

Fig. 14 is a partial schematic view of the valve spring base attracted by the magnet according to the present embodiment.

FIG. 15 is a schematic view of the assembly tool of this embodiment after picking up an array of valve spring mounts.

Fig. 16 is an operation diagram of the valve spring seat assembled to the cylinder head in the present embodiment.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings.

As shown in fig. 1, eight valve spring mounting holes 6 are formed in the air inlet side of the cylinder cover 5, a valve guide pipe 4 is arranged in each valve spring mounting hole 6, the eight valve guide pipes 4 are arranged in a row, eight valve spring mounting holes 6 are also formed in the air outlet side of the cylinder cover 5, a valve guide pipe 4 is arranged in each valve spring mounting hole 6, the eight valve guide pipes 4 are arranged in a row, the eight valve guide pipes 4 on the air inlet side and the eight valve guide pipes 4 on the air outlet side are symmetrically arranged, and the structure of the cylinder cover 5 is the prior art. During assembly, eight valve spring bases 3 are mounted on eight valve guides 4 on the intake side, and eight valve spring bases 3 are mounted on eight valve guides 4 on the exhaust side.

The assembling device of the valve spring base shown in fig. 2 to 16 comprises a collecting plate 1 and an assembling tool.

As shown in fig. 2 and 3, the collecting plate 1 is provided with seven rows of identical blind holes 11, each row has eight blind holes, the distribution positions of the eight blind holes 11 in each row correspond to the arrangement positions of the eight valve guides 4 on the air inlet side of the cylinder head 5, the blind holes 11 at two ends in each row of blind holes 11 are provided with positioning pins 12, and the diameters of the positioning pins 12 are equal to the diameters of the valve guides 4; the thickness of body 31 of valve spring base 3 is greater than the degree of depth of blind hole 11, and valve spring base 3 can place in blind hole 11 and with blind hole 11 clearance fit, to the blind hole 11 that has locating pin 12, locating pin 12 can pass the centre bore of spring base 3's boss 32 when valve spring base 3 is placed in blind hole 11.

As shown in fig. 4 to 12, the assembly tool includes a pressing assembly 21, an adsorption assembly 23, and four elastic connectors 22. The pressing assembly 21 comprises a pressing plate 211, two pressing plate handles 213 and a row of pressing rods 212 vertically welded on the lower surface of the pressing plate 211, eight pressing rods 212 are arranged in the row, the distribution positions of the eight pressing rods 212 correspond to the distribution positions of the eight blind holes 11 in each row, pin holes 2121 are formed in the lower end of the pressing rods 212, the diameter of each pin hole 2121 is larger than the diameter of each positioning pin 12 and smaller than the outer diameter of each boss 32 of the valve spring base 3, the depth of each pin hole 2121 is larger than the height of each positioning pin 12, the outer diameter of each pressing rod 212 is larger than the diameter of each central hole of each boss 32 of the valve spring base 3, the two pressing plate handles 213 are respectively welded at two ends of the pressing plate 211, and two first connecting through holes 214 (four first connecting through. The adsorption component 23 comprises a support plate 231, two support plate handles 235, eight magnets 233, eight end covers 234 and a row of sleeves 232 vertically welded on the lower surface of the support plate 231, the row of sleeves is eight, the distribution positions of the eight sleeves 232 correspond to the distribution positions of the eight blind holes 11 in each row, eight assembling through holes communicated with the sleeves 232 are formed in the positions, corresponding to the eight sleeves 232, on the support plate 231, the outer diameter of each end cover 234 is smaller than the diameter of a valve spring mounting hole 6 in the cylinder cover 5, a stepped through hole 2341 is formed in the center of each end cover 234, an internal thread is formed in the large hole section of the stepped through hole 2341, external threads are formed in the lower end part of each sleeve 232, the eight end covers 234 are respectively screwed with the eight sleeves 232, the eight magnets 233 are respectively located between the eight end covers 234 and the eight sleeves 232, the upper end faces of the magnets are abutted against the lower end faces of the sleeves 232, the outer diameter of magnet 233 is greater than the aperture of the small hole section of stepped through hole 2341, the inner diameter of magnet 233 is less than the aperture of the small hole section of stepped through hole 2341 and is greater than the outer diameter of boss 32 of valve spring base 3, the outer diameter of body 31 of valve spring base 3 is less than the aperture of the small hole section of stepped through hole 2341 and is greater than the inner diameter of magnet 233, two support plate handles 235 are welded at the two ends of support plate 231 respectively, and two second connecting through holes 236 (four second connecting holes 236 in total) are respectively opened at the two ends of support plate 231. The four elastic connecting pieces 22 are respectively matched with the four first connecting through holes and the four second connecting through holes; each elastic connecting piece 22 comprises a bolt 221, a spring 222 and a nut 223, the nut 223 is a hexagonal flange nut, the spring 222 is located between the pressing plate 211 and the supporting plate 231, the bolt 221 passes through the second connecting through hole 236, the spring 222 and the first connecting through hole 21 to be in threaded connection with the nut 223, the pressing plate 211 is connected with the supporting plate 231, the spring 222 is in a partially compressed state (namely, one end of the spring 222 abuts against the pressing plate 211, the other end of the spring abuts against the supporting plate 231, and the spring 222 is not compressed to a limit position), the eight pressing rods 212 respectively extend into the eight sleeves 232 through the eight assembling through holes, the pressing/releasing spring 222 can enable the pressing rods 212 to move relative to the sleeves 232 along the compression/extension direction of the spring, and the eight magnets 233 can respectively adsorb the eight valve spring bases 3 placed in the eight blind holes 11 of.

As shown in fig. 11, when the assembly fixture is in a free state, the hexagonal flange surface of the nut 223 contacts the upper surface of the pressing plate 211, and the pressing rod 212 is located in the sleeve 232 and does not extend out of the sleeve 232 under the elastic force of the spring 222.

As shown in fig. 3 and 12 to 15, 56 valve spring bases 3 are placed in 56 blind holes 11, and the process of picking up the valve spring bases 3 by the assembly tool is as follows: compressing the clamp plate handle 213 and the support plate handle 235 to further compress the spring 222, and extending the strut 212 out of the sleeve 232; the assembly tool moves above the row of blind holes 11 of the collecting plate 1, the pin holes 2121 on the compression rod 212 are sleeved outside the positioning pins 12, the lower end face of the compression rod 212 is firstly abutted against the upper end face of the boss 32 of the valve spring base 3 to compress the valve spring base 3, and the valve spring base 3 is prevented from shifting, rotating and the like due to magnetic force; then, the pressing plate handle 213 and the supporting plate handle 235 are released, the pressing rod 212 retracts into the sleeve 232 under the action of the elastic force of the spring 222, at the moment, the body 31 of the valve spring base 3 is in contact with the magnet 233 and is adsorbed, and the assembly tool picks up eight valve spring bases 3 (see fig. 15).

As shown in fig. 16, the assembly fixture and the eight valve spring bases 3 are transferred to the upper side of the air intake side of the cylinder cover 5, the end cover 234 and the valve spring bases 3 extend into the valve spring mounting holes 6 of the cylinder cover 5, the valve guide 4 passes through the valve spring bases 3 and enters the pin holes 2121 on the pressure lever 212 to press the pressure lever handle 213 and the support plate handle 235 again, the pressure lever 212 extends out to act on the upper end surface of the boss 32 of the valve spring base 3 to lift the valve spring bases 3 away from the magnet 233, the valve spring bases 3 are assembled in place under the action of gravity, then the pressure lever handle 213 and the support plate handle 235 are released, the assembly fixture is reset, and the assembly of the eight valve spring bases on the air intake side of the; then, the eight valve spring bases on the exhaust side of the cylinder cover 5 can be assembled by repeating the picking and assembling of the valve spring bases once, so that the assembling efficiency is improved, and the labor intensity of an operator is reduced.