CN214768709U - Bent chain link assembling die of bent plate roller chain - Google Patents

Abstract

The utility model relates to a chain assembly technical field provides a curved link assembly mould of curved plate roller chain, aims at solving original curved link assembly quality and is relatively poor, and the concentricity of the pin roll hole that two curved link plates correspond is poor, and when the chain becomes strip, the pin roll is packed into and can produce serious link plate side cut in two curved link plate pin roll holes, and the pin roll surface can also produce the problem of serious wearing and tearing sign, including the base that the level set up, chain round pin seat and the core print that are used for curved link chain both ends to place and assemble are installed respectively to the upper end both sides of base; a chain pin hole is vertically formed in the middle of the chain pin seat; the middle part of the core seat is vertically provided with a core shaft hole, a core shaft used for assembling and positioning the bent chain link is inserted into the core shaft hole, and the lower end of the core shaft is connected with the upper end face of the base through a buffer spring. The utility model discloses be particularly useful for the high-efficient high quality assembly of curved chain link, have higher social use value and application prospect.

Description

Bent chain link assembling die of bent plate roller chain

Technical Field

The utility model relates to a chain assembly technical field, concretely relates to curved link assembly die of bent plate roller chain.

Background

The bent plate roller chain is formed by serially assembling bent chain links and a pin shaft, the bent chain links are a member formed by assembling two bent chain plates, a sleeve and a roller, the pin shaft is arranged in a pin shaft hole of the two bent chain plates and simultaneously penetrates through an inner hole of the sleeve on the bent chain link, so that a hinge pair is formed between the two bent chain links, and each bent chain link can flexibly rotate.

The original bent chain links are formed by manually and directly beating and assembling through hammers, the formed bent chain links are poor in assembling quality, the concentricity of pin shaft holes corresponding to two bent chain plates is poor, when a chain is formed into strips, a pin shaft is arranged in the pin shaft holes of the two bent chain plates, serious chain plate edge cutting can be generated, serious abrasion signs can be generated on the surface of the pin shaft, and the firmness between the pin shaft and the chain plate holes is reduced; the surface of the sleeve and the surface of the bent chain plate can generate a hammer-struck print, so that the attractiveness of the chain is influenced; meanwhile, the central axis of the sleeve is not perpendicular to the surface of the chain plate, so that the sleeve is loaded into a sleeve hole of the bent chain plate to form a serious chain plate edge cutting phenomenon, and the firmness between the sleeve and the chain plate hole is influenced.

To this end, we propose a bending link assembling die of a bending plate roller chain.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a not enough to prior art, the utility model provides a curved link assembly jig of curved plate roller chain has overcome the not enough of prior art, reasonable in design, and compact structure aims at solving original curved link assembly quality ratio poor, and the round pin shaft hole concentricity that two curved link plates correspond is poor, and when the chain becomes the strip, the round pin axle is packed into and can produce serious link plate side cut in two curved link plate round pin shaft holes, and the round pin axle surface also can produce the problem of serious wearing and tearing sign.

(II) technical scheme

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes:

a bent chain link assembling die of a bent plate roller chain comprises a horizontally arranged base, wherein both sides of the upper end of the base are respectively provided with a chain pin seat and a core seat for placing and assembling both ends of a bent chain link;

a chain pin hole is vertically formed in the middle of the chain pin seat;

the middle part of the core seat is vertically provided with a core shaft hole, a core shaft used for assembling and positioning the bent chain link is inserted into the core shaft hole, and the lower end of the core shaft is connected with the upper end face of the base through a buffer spring.

Preferably, the mandrel is of a three-layer step structure which is sequentially increased from top to bottom, and the mandrel sequentially comprises a third step for positioning the chain sleeve, a second step for positioning the bent chain link and locking the bent chain link by matching with the chain pin base, and a first step for sliding and limiting in the mandrel hole from top to bottom.

Preferably, the lower end face of the first step further comprises a spring positioning boss for positioning the buffer spring.

Preferably, the compression amount of the buffer spring is less than or equal to 0.25 percent.

Preferably, the chain pin seat and the core seat are both provided with positioning pin holes for positioning with the base through positioning pins.

Preferably, the chain pin seat and the core seat are both provided with threaded holes for fixing with the base through bolts.

Preferably, after the mandrel is installed in the mandrel hole, the height of the second-stage step exposed out of the mandrel hole is 1mm lower than the thickness of the bent chain plate.

Preferably, the upper sections of the chain pin hole and the mandrel hole are both of milling flat structures.

(III) advantageous effects

The embodiment of the utility model provides a curved link assembly jig of bent plate roller chain possesses following beneficial effect:

1. the utility model discloses a chain key seat, with the setting of core print seat, the effectual curved chain link round pin shaft hole after having guaranteed the assembly is concentric, and the four holes of curved chain link are positioned the back simultaneously, the four holes concentricity of curved chain link that the assembly was accomplished is high, guaranteed that the link joint hole does not take place to deflect, the dabber of many step structure of cooperation simultaneously, the two parts axiality requirement of location has been guaranteed, it takes place to cut edge to have avoided the assembly, satisfy the concentricity requirement in round pin shaft hole when the equipment of curved chain link, and the outward appearance is pleasing to the eye, do not have to strike and pound the seal of a government organization in old china.

2. The utility model discloses a buffer spring's setting, steady removal about buffer spring's reaction down the mandrel can, and buffer spring's compression capacity is less than or equal to 0.25%, increases the life of spring, has guaranteed that the spring takes place to become invalid under long-time use, and impresses for the sleeve and curved link joint telescopic hole provides the guarantee.

Drawings

The above features, technical features, advantages and modes of realisation of the bending link assembling die for a bending plate roller chain will be further explained in a clearly understandable manner with reference to the accompanying drawings.

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a top view of the present invention;

fig. 3 is a schematic structural view of the central spindle of the present invention;

fig. 4 is a structural plan view of the middle core shaft of the present invention;

fig. 5 is a schematic view of the assembly of the bent plate roller chain of the present invention.

In the figure: the chain pin seat comprises a base 1, a chain pin seat 2, a chain pin hole 21, a core seat 3, a core shaft hole 31, a core shaft 4, a first-level step 41, a second-level step 42, a third-level step 43, a spring positioning boss 44, a buffer spring 5, a threaded hole 6, a positioning pin hole 7 and a bent plate roller chain a.

Detailed Description

The invention will be further described with reference to the following figures 1-5 and examples:

example 1

A bent chain link assembling die of a bent plate roller chain comprises a base 1 which is horizontally arranged, wherein both sides of the upper end of the base 1 are respectively provided with a chain pin seat 2 and a core seat 3 which are used for placing and assembling both ends of a bent chain link;

a chain pin hole 21 is vertically formed in the middle of the chain pin seat 2;

vertical seting up in middle part of core print 3 has dabber hole 31, and dabber hole 31 interpolation is equipped with dabber 4 that is used for curved link assembly positioning, and the lower extreme of dabber 4 is connected with base 1's up end through buffer spring 5, steady movement about dabber 4 can be under buffer spring 5's reaction, the effectual curved link round pin hole of having guaranteed after the assembly is concentric, and the curved link four holes is fixed a position the back simultaneously, the curved link four holes concentricity of accomplishing of assembly is high, has guaranteed that the link joint hole does not take place to deflect.

In this embodiment, as shown in fig. 1 to 4, the mandrel 4 is a three-step structure sequentially increasing from top to bottom, and sequentially includes, from top to bottom, a third step 43 for positioning a chain sleeve, a second step 42 for positioning a bent chain link and locking the bent chain link in cooperation with the chain pin seat 2, and a first step 41 for slidably limiting in the mandrel hole 31; in this embodiment, the first step 41, the second step 42 and the third step 43 simultaneously position the sleeve hole of the curved chain plate, the step size of the inner hole of the positioning sleeve, and the mandrel is installed in the core holder to simultaneously position the sleeve hole of the curved chain plate and the inner hole of the sleeve, thereby ensuring the coaxiality requirement of the positioned two curved chain links.

In this embodiment, as shown in fig. 3, the lower end surface of the first step 41 further includes a spring positioning boss 44 for positioning the buffer spring 5.

In the embodiment, the compression amount of the buffer spring 5 is less than or equal to 0.25%, the service life of the spring is prolonged, the spring is guaranteed to lose efficacy in long-time use, and a guarantee is provided for pressing the sleeve into the sleeve hole of the bent chain plate.

In this embodiment, as shown in fig. 2, the chain pin boss 2 and the core boss 3 are both provided with a positioning pin hole 7 for positioning with the base 1 through a positioning pin, and the positioning pin has a positioning effect, so that the center distance between the core boss 3 and the chain pin boss 2 is accurately ensured.

In this embodiment, as shown in fig. 1 and 2, the chain pin boss 2 and the core print 3 are both provided with a threaded hole 6 for fixing with the base 1 through a bolt, and the bolt plays a role in connection and fixation to prevent looseness.

In this embodiment, as shown in fig. 1 and 2, the upper sections of the chain pin hole 21 and the mandrel hole 31 are both milling flat structures, and it can be understood that the second-level step 42 also correspondingly mills a flat opening matched with the milling flat structure, so as to ensure that the mandrel 4 is prevented from rotating when moving up and down in the mandrel base 3, thereby playing a role in positioning, ensuring that the mandrel 4 is flat and consistent with a horizontal axis, ensuring that the positioning pin is not rotated when being installed on the chain pin base 2, ensuring that the positioning pin is flat and consistent with the horizontal axis, positioning the positioning pin simultaneously positioning two pin holes of the knee plate, and meeting the requirement on concentricity of the pin holes of the knee plate.

Meanwhile, in the embodiment, the base 1 is provided with counter bores matched with the positioning pin holes 7 and the threaded holes 6, the positioning pin holes 7 are respectively used for positioning the core print 3 and the chain pin print 2, and the core print 3 and the chain pin print 2 are connected through bolts, so that the core print 3 and the chain pin print 2 are straightly fixed on the base.

Example 2

The difference between this embodiment and embodiment 1 is that, as shown in fig. 5, after the mandrel 4 is installed in the mandrel hole 31, the height of the second-stage step 42 exposed from the mandrel hole 31 is 1mm lower than the thickness of the curved link plate, so that the sleeve positioned by the mandrel 4 can be conveniently sensed to enter the sleeve hole of the curved link plate, and it is ensured that the two parts are flat and consistent, so that the sleeve can be easily installed in the sleeve hole of the curved link plate under the action of the press, and the edge cutting phenomenon of the link plate cannot occur.

Other undescribed structures refer to example 1.

The bent chain section assembling die of the bent plate roller chain according to the embodiment of the invention.

The embodiment of the present invention discloses a preferred embodiment, but not limited thereto, and those skilled in the art can easily understand the spirit of the present invention according to the above embodiment, and make different extensions and changes, but do not depart from the spirit of the present invention, all of which are within the protection scope of the present invention.

Claims (8)

1. A bent chain link assembling die of a bent plate roller chain comprises a horizontally arranged base (1), and is characterized in that two sides of the upper end of the base (1) are respectively provided with a chain pin seat (2) and a core seat (3) for placing and assembling two ends of a bent chain link;

a chain pin hole (21) is vertically formed in the middle of the chain pin seat (2);

the middle part of the core seat (3) is vertically provided with a core shaft hole (31), a core shaft (4) used for assembling and positioning the bent chain link is inserted into the core shaft hole (31), and the lower end of the core shaft (4) is connected with the upper end face of the base (1) through a buffer spring (5).

2. The bending link assembling die for a bending plate roller chain according to claim 1, wherein: the mandrel (4) is of a three-layer step structure which is sequentially increased from top to bottom, and sequentially comprises a three-level step (43) for positioning the chain sleeve, a two-level step (42) for positioning the bent chain link and locking the bent chain link by matching with the chain pin seat (2) and a one-level step (41) for sliding and limiting in the mandrel hole (31) from top to bottom.

3. The bending link assembling die for a bending plate roller chain as claimed in claim 2, wherein: the lower end face of the first-stage step (41) further comprises a spring positioning boss (44) used for positioning the buffer spring (5).

4. The bending link assembling die for a bending plate roller chain according to claim 1, wherein: the compression amount of the buffer spring (5) is less than or equal to 0.25 percent.

5. The bending link assembling die for a bending plate roller chain according to claim 1, wherein: and the chain pin seat (2) and the core seat (3) are respectively provided with a positioning pin hole (7) for positioning with the base (1) through a positioning pin.

6. The bending link assembling die for a bending plate roller chain according to claim 1, wherein: and threaded holes (6) used for being fixed with the base (1) through bolts are formed in the chain pin seat (2) and the core seat (3).

7. The bending link assembling die for a bending plate roller chain as claimed in claim 2, wherein: after the mandrel (4) is arranged in the mandrel hole (31), the height of the second-stage step (42) exposed out of the mandrel hole (31) is 1mm lower than the thickness of the bent chain plate.

8. The bending link assembling die for a bending plate roller chain as claimed in claim 2, wherein: the upper sections of the chain pin hole (21) and the mandrel hole (31) are both of milling flat structures.

Images