CN218875608U - Presser foot cup slide stop gear - Google Patents

Abstract

The application relates to the field of drilling machines, in particular to a limiting mechanism for a presser foot cup sliding seat. The key points of the technical scheme are as follows: the device comprises a base, a sliding seat and a limiting piece, wherein the sliding seat is arranged on the base in a sliding manner, the limiting piece comprises an installation block and a plurality of groups of connection blocks, the plurality of groups of connection blocks are respectively connected with two opposite sides of the installation block, the connection blocks are fixedly connected with the base, and one side of the limiting piece is in butt fit with the sliding seat; or the locating part includes fixed block and stopper, the fixed block is located the base, the fixed block with the stopper links to each other, the stopper with slide looks butt cooperation, this application has the effect that promotes structural strength and life.

Description

Presser foot cup slide stop gear

Technical Field

The application relates to the field of drilling machines, in particular to a limiting mechanism for a presser foot cup sliding seat.

Background

The presser foot cup is a part usually applied to the drilling process of the PCB, and the presser foot cup is beneficial to subsequent drilling and positioning by pressing the PCB, improves the precision in the drilling process and is widely applied to the drilling process of the PCB.

Currently, in the related art, chinese patent with patent publication No. CN112318596A discloses a pressure foot structure, which mainly includes a base, a sliding seat, a driving member, and a pressure ring; the sliding seat is arranged on the base in a sliding manner and is provided with at least two pressure rings; simultaneously, the driving piece is through a support fixed mounting on the base to the driving piece is connected with the slide, and the driving piece is used for driving the slide and removes, and then orders about the pressure ring and carry out the position switch, and different pressure rings are used for pressing the PCB board under different work condition and paste, realize fixing a position the hole site.

For the related technologies, in practical applications, when the sliding seat slides, in order to ensure the position precision during movement, usually, a limiting member is further required to be disposed on the base, and the limiting members are respectively disposed on two opposite sides of the sliding seat and are used for abutting against the sliding seat to achieve a limiting effect; however, the limiting member is usually of a stop lever structure, and is easy to deform and damage under long-term impact, and the structural life of the limiting member is long.

SUMMERY OF THE UTILITY MODEL

In order to promote the life of structure, this application provides a presser foot cup slide stop gear.

The application provides a presser foot cup slide stop gear adopts following technical scheme:

a presser foot cup slide seat limiting mechanism comprises a base, a slide seat and a limiting part, wherein the slide seat is arranged on the base in a sliding manner, the limiting part comprises a mounting block and a plurality of groups of connecting blocks, the connecting blocks are respectively connected with two opposite sides of the mounting block, the connecting blocks are fixedly connected with the base, and one side of the limiting part is abutted and matched with the slide seat; or the locating part includes fixed block and stopper, the fixed block is located the base, the fixed block with the stopper links to each other, the stopper with slide looks butt cooperation.

By adopting the technical scheme, compared with the barrier strip structure in the related technology, the block structures such as the mounting block, the connecting block, the fixing block, the limiting block and the like have larger structural thickness, which means that the stress strength of the structure is better; on one hand, when the limiting piece comprises the mounting block and the connecting blocks, the connecting blocks on two opposite sides of the mounting block 31 are fixedly mounted on the base, which is equivalent to providing fixing force on two opposite sides of the mounting block 31, so that the limiting piece is balanced in stress, not easy to deform and stable in assembly; on the other hand, when the locating part includes fixed block and stopper, the fixed block provides the fixed stay for the stopper, and the stopper is the same atress balanced, and non-deformable, final stopper stability obtains promoting, and the life of structure obtains finally promoting.

Preferably, the limiting member is provided with a first positioning portion, and the base is provided with a second positioning portion that is inserted into and positioned with the first positioning portion.

Through adopting above-mentioned technical scheme, under the grafting cooperation of first location portion and second location portion, can promote the assembly precision between the locating part base, and then reduce assembly error and the machining error between each part.

Preferably, the positioning device further comprises a countersunk screw, a countersunk hole is formed in the limiting member, and the countersunk screw is connected to the base through the countersunk hole in a threaded manner.

Through adopting above-mentioned technical scheme, adopt countersunk screw and countersunk hole's mode with locating part fixed mounting on the base, stability when can promote the connection reduces the impact force to screw head, and then reduces the screw head and produce cracked possibility.

Preferably, the mounting block is integrally connected with the connecting block.

Through adopting above-mentioned technical scheme, the mode steadiness of body coupling is good, can make the whole steadiness of locating part obtain promoting, and shock resistance further obtains promoting, and simultaneously, the mode of body coupling is favorable to one step of shaping of locating part, and the convenience during machine-shaping obtains promoting.

Preferably, the fixed block is integrally connected with the limiting block.

Through adopting above-mentioned technical scheme, the mode steadiness of body coupling is good, can make the whole steadiness of locating part obtain promoting, and shock resistance further obtains promoting, and simultaneously, the mode of body coupling is favorable to one step of shaping of locating part, and the convenience during the machine-shaping obtains promoting.

Preferably, the telescopic device further comprises a telescopic cylinder, the telescopic cylinder is provided with a cylinder hole and a piston rod located in the cylinder hole, the piston rod is connected with the sliding seat, and the cylinder hole of the telescopic cylinder is not larger than 9mm.

Through adopting above-mentioned technical scheme, order about the slide through the mode of ordering about the piston rod flexible and realize sliding, simultaneously, set for below 9mm through the size with the jar hole, be favorable to controlling the capacity in jar hole and the size of piston rod, and then the drive power of control telescoping cylinder is favorable to reducing the impact force to the locating part, and the life-span of structure obtains further promotion.

Preferably, the thickness of the fixed block is between 6mm and 8mm, and the thickness of the limiting block is between 2mm and 4 mm.

By adopting the technical scheme, when the thickness of the fixed block is between 6mm and 8mm and the thickness of the limiting block is between 2mm and 4mm, the structure is firmer, the size is not easy to be too large, and the integral structural compactness can be met while the size is not easy to be too large.

Preferably, the thickness of the connecting block is between 7mm and 9mm, and the thickness of the mounting block is between 8mm and 10 mm.

By adopting the technical scheme, when the thickness of the connecting block is between 7mm and 9mm and the thickness of the mounting block is between 8mm and 10mm, the structure is firm, the size of the limiting part is not too large easily, the structure is not easy to break, and the integral structural compactness can be met.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the limiting piece is reasonable and stable in structure, is not easy to deform and balanced in stress when being impacted by the sliding seat, and the service life of the structure is prolonged;

2. the fixing mode of the countersunk head screw is adopted, so that the stability during connection can be improved, the impact force on the head of the screw is reduced, and the possibility of fracture of the screw head is reduced;

3. through control cylinder hole size and then reduce the impact force of slide to the locating part, the life-span of structure is further promoted.

Drawings

Fig. 1 is a schematic view of a structure of a presser foot cup in a preferred embodiment of the present application.

Fig. 2 is a schematic view of an assembly relationship of a limiting mechanism in a preferred embodiment of the present application.

FIG. 3 is a schematic diagram of the driving member and the slider according to a preferred embodiment of the present invention.

Description of reference numerals:

1. a base; 11. a threaded hole; 12. a second positioning portion; 2. a slide base; 3. a limiting member; 31. mounting blocks; 32. connecting blocks; 33. a fixed block; 34. a limiting block; 35. a first positioning portion; 36. countersinking; 4. countersunk head screws; 5. a telescopic cylinder; 51. a piston rod; 52. a cylinder body; 521. a cylinder bore; 6. a presser foot ring.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses presser foot cup slide stop gear.

Referring to fig. 1, the limiting mechanism includes a base 1 and a sliding base 2 slidably disposed on the base 1. Next, explaining the structure in a conventional use state, wherein the base 1 is generally in a hollow cup structure, the top of the base 1 is open, the bottom of the base 1 is hemispherical, an arc-shaped chute is formed in the lower surface of the base 1, the sliding seat 2 is in an arc-shaped sheet structure, and is matched with the profile of the arc-shaped chute, the sliding seat 2 is slidably arranged at the arc-shaped chute, and at the moment, the sliding seat 2 slides along the arc-shaped profile in the arc-shaped chute; meanwhile, the sliding seat 2 is provided with a pressure foot ring 6, and the pressure foot ring 6 is used for pressing and pasting the PCB, so that subsequent drilling positioning is facilitated.

In order to realize positioning the movement of the sliding seat 2, the base 1 is provided with the limiting parts 3, the limiting parts 3 are at least two groups, two groups are adopted as examples in the embodiment, the multiple groups of limiting parts 3 are respectively close to two ends of the arc-shaped sliding groove, and the limiting parts 3 are specifically of block structures in the embodiment so as to meet the requirements of structure thickness and further meet the stress capacity of the structure.

Referring to fig. 2, specifically, the structure of the limiting member 3 can be adjusted accordingly according to different actual requirements, in this embodiment, the limiting member 3 shows two different types of structures to meet different use requirements.

In one of the structures of the limiting member 3, the limiting member 3 includes a mounting block 31 and a connecting block 32. In this embodiment, two groups are used as an example, and the specific number of the connecting blocks 32 is not described herein. Multiunit connecting block 32 links to each other with the both sides of the back of the body of installation piece 31 respectively, generally, connecting block 32 can be realized linking to each other through the fixed or mode of body coupling of fastener, adopt the mode of body coupling in this embodiment, in the in-process of integrated into one piece, through cutting the stock between connecting block 32 and the installation piece 31, mill and the shaping is realized to the mode of polishing, compare in the mode that adopts threaded fastener to go on fixing, the steadiness is good in connection of body coupling's mode on the one hand, on the other hand can one step be in place in the course of working, the time that a plurality of parts split processing were wasted has been shortened, convenience during machine-shaping obtains promoting.

Meanwhile, the service life of the structure often depends on the self strength of the structure and the installation strength of the structure, and from the installation strength of the structure, in order to realize the stable connection of the limiting part 3 and the base 1, the mode of fixedly connecting the connecting block 32 and the base 1 is preferentially adopted. At this time, the connecting blocks 32 on both sides of the mounting block 31 are used as fixing points, and the whole structure is balanced and stable in stress. Wherein, for realizing stabilizing the connection with connecting block 32 and base 1, in stop gear, still include countersunk screw 4, run through along the thickness direction on the locating part 3 and be provided with countersunk hole 36, countersunk hole 36 can be the cone opening and also can be the disjunctor structure, do not do specific restriction here, meanwhile, still be equipped with screw hole 11 on base 1 for with countersunk screw 4 looks screw-thread fit, at this moment, countersunk screw 4 passes countersunk hole 36, countersunk screw 4 passes through screw hole 11 threaded connection on base 1 afterwards, realize locating part 3's fixed mounting.

At this moment, while the countersunk head screw 4 plays a role in fixing the foundation, the head of the countersunk head screw 4 can be embedded into the countersunk hole 36 to support the limiting part 3, so that the impact force on the head of the screw is reduced, the possibility of fracture of the head of the screw is reduced, and the stability during connection is improved. It should be noted that the number of the countersunk screws 4 is matched with the number of the connecting blocks 32, the specific application number of the countersunk screws 4 is not limited here, after the limiting member 3 is assembled, one side of the limiting member 3 is opposite to the sliding seat 2, and can be abutted and matched with one side of the limiting member 3 in the sliding process of the sliding seat 2, and the limiting member 3 positions the sliding position of the sliding seat 2.

With reference to fig. 2, further, in order to ensure the installation accuracy of the limiting member 3 on the base 1, the limiting member 3 is provided with a first positioning portion 35, the base 1 is provided with a second positioning portion 12 inserted and positioned with the first positioning portion 35, it should be noted that the first positioning portion 35 may be a concave structure or a convex structure, and correspondingly, the second positioning portion 12 may also be a concave structure or a convex structure, if the first positioning portion 35 is a convex structure, the second positioning portion 12 is set to be a concave structure matched with the first positioning portion 35, if the first positioning portion 35 is a concave structure, the second positioning portion 12 may be set to be a convex structure, and no matter what structure the first positioning portion 35 and the second positioning portion 12 are, the structural forms of the positioning of the two portions can be adjusted and combined at will by inserting.

In this embodiment, connecting block 32 department is located to first location portion 35 is the boss structure, and second location portion 12 then is the shrinkage pool structure, under the grafting cooperation of boss and shrinkage pool, realizes the location fit between connecting block 32 and base 1, and the assembly precision between 3 bases 1 of locating part obtains promoting, and assembly error and machining error between each part obtain reducing.

Meanwhile, the first positioning portion 35 and the connecting block 32 are connected to each other in an integral manner in this embodiment, so that on one hand, the connection strength of the first positioning portion 35 can be improved; on the other hand, the first positioning portion 35 can be synchronously formed in the forming process of the limiting member 3, so that errors caused by the disassembling and assembling manner of the first positioning portion 35 are reduced, the position processing error of the first positioning portion 35 is reduced, and finally, the overall structure precision of the first limiting member 3 is improved.

To meet the strength requirements of the structure itself, the thickness of the connecting block 32 is set between 7mm and 9mm, and the thickness of the mounting block 31 is set between 8mm and 10 mm. The thickness of the connecting block 32 may be 7mm, 8mm or 9mm, the thickness of the mounting block 31 may be 8mm, 9mm or 10mm, and the specific thicknesses of the connecting block 32 and the mounting block 31 are adjusted as the case may be, and in this embodiment, the thickness of the connecting block 32 is 8mm, and the thickness of the mounting block 31 is 9mm as an example. At the moment, on one hand, when the thickness of the connecting block 32 is between 7mm and 9mm and the thickness of the mounting block 31 is between 8mm and 10mm, the structure of the limiting piece 3 is firmer, meanwhile, the volume is not easy to be overlarge, and the integral structural compactness can be met while the breaking is not easy; on the other hand, setting the thickness of the mounting block 31 to be larger than that of the connecting block 32 allows the mounting block 31 to bear a larger load, so that the driving member can be disposed in the limiting member 3, and the structure can be kept stable.

Referring to fig. 2 and 3, the impact force exerted by the slider 2 on the stopper 3 is also one of the important factors for maintaining the structural stability in terms of structural stability. Therefore, in the present embodiment, the driving member is selected as the telescopic cylinder 5, the telescopic cylinder 5 mainly includes the piston rod 51 and the cylinder 52, the cylinder hole 521 is opened inside the cylinder 52, the cylinder 52 is fixedly mounted on the mounting block 31, and the limiting member 3 can close the cylinder hole 521 to perform a sealing function. Meanwhile, the piston rod 51 can be movably and telescopically fitted into the cylinder hole 521, the limiting member 3 and one end of the piston rod 51 are connected to the sliding base 2, generally, the piston rod 51 and the sliding base 2 can be connected in a hinged manner to satisfy the degree of freedom of the structural movement, and the detailed connection manner of the piston rod 51 and the sliding base 2 is not described herein.

Further, in order to improve the assembly accuracy between the limiting member 3 and the cylinder body 52, an air cylinder positioning pin may be further disposed between the limiting member 3 and the cylinder body 52, wherein the limiting member 3 and the cylinder body 52 are respectively provided with an air cylinder positioning pin hole, two ends of the air cylinder positioning pin are respectively pressed into the air cylinder positioning pins of the limiting member 3 and the cylinder body 52 in an interference fit or transition fit manner, so as to realize accurate positioning between the first limiting member 6 and the cylinder body 52, facilitate alignment installation of the air cylinder, and improve the installation accuracy.

In order to control the impact force of the sliding seat 2, the aperture of the cylinder hole 521 of the telescopic cylinder 5 is set to be not more than 9mm, such as 6mm, 7mm, 8mm or 9mm, and at this time, the size of the cylinder hole 521 is controlled, so that the overall capacity is controlled, the thrust is changed, and meanwhile, the size of the piston rod 51 can be limited, and the overall weight is reduced; if when the aperture is greater than 9mm, can lead to cylinder hole 521 capacity too big, the air input grow, and then make the impulsive force too big, cause the impact damage to first locating part 3 and second locating part 3 more easily, through restriction aperture size, be favorable to hoist mechanism's whole life.

Referring to fig. 2, the limiting element 3 may have another structure, and for convenience of illustration, two limiting elements 3 with different structures are illustrated in the embodiment simultaneously. Specifically, in another structure, the limiting member 3 includes a fixing block 33 and a limiting block 34, the fixing block 33 is connected to the limiting block 34, and in this embodiment, an integral connection mode is adopted to ensure the connection strength.

Meanwhile, the thickness of the fixing block 33 is set to be larger than that of the limiting block 34, the fixing block 33 is arranged on the base 1, and the fixing block 33 with the larger thickness is beneficial to the stability of the installation foundation of the limiting piece 3 and is not easy to break. In this embodiment, the thickness of the fixed block 33 is between 6mm and 8mm, and the thickness of the limit block 34 is between 2mm and 4mm, wherein the thickness of the fixed block 33 may be specifically 6mm, 7mm or 8mm, the thickness of the limit block 34 may be 2mm, 3mm or 4mm, and the specific thicknesses of the fixed block 33 and the limit block 34 are adjusted according to specific circumstances, in this embodiment, the thickness of the fixed block 33 is 7mm, and the thickness of the limit block 34 is 3mm as an example.

It should be noted that, when the thickness of the fixing block 33 is less than 6mm or when the thickness of the limiting block 34 is less than 2mm, the structural strength of the limiting part 3 is affected, and when the thickness of the fixing block 33 is greater than 8mm or when the thickness of the limiting block 34 is greater than 4mm, the limiting part 3 occupies more assembly space, which may affect the overall length or compactness of the presser foot cup, and the limiting block 34 is in butt fit with the sliding base 2, so that the sliding position of the sliding base 2 is stably limited, and the structure is not easy to deform.

The implementation principle of the presser foot cup slide limiting mechanism in the embodiment of the application is as follows: the limiting piece 3 is arranged into a block-shaped structure, so that the stress strength of the limiting piece 3 is improved; simultaneously, through the size scope of control cylinder hole 521, and then control impulsive force size, reduce the impact to locating part 3, the life of mechanism obtains final promotion.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (8)

1. The utility model provides a presser foot cup slide stop gear, includes base (1) and slides and sets up in slide (2) of base (1), its characterized in that: also comprises a limiting piece (3),

the limiting part (3) comprises a mounting block (31) and a plurality of connecting blocks (32), the connecting blocks (32) are in a plurality of groups, the connecting blocks (32) are respectively connected with two opposite sides of the mounting block (31), the connecting blocks (32) are fixedly connected with the base (1), and one side of the limiting part (3) is in butt fit with the sliding seat (2);

or locating part (3) includes fixed block (33) and stopper (34), fixed block (33) are located base (1), fixed block (33) with stopper (34) link to each other, stopper (34) with slide (2) looks butt cooperation.

2. The presser foot cup slide mount limiting mechanism of claim 1, wherein: the limiting part (3) is provided with a first positioning part (35), and the base (1) is provided with a second positioning part (12) which is inserted and positioned with the first positioning part (35).

3. A presser foot cup slide stop mechanism according to claim 1 or 2, wherein: the positioning device is characterized by further comprising a countersunk screw (4), wherein a countersunk hole (36) is formed in the limiting part (3), and the countersunk screw (4) is in threaded connection with the base (1) through the countersunk hole (36).

4. The presser foot cup slide mount limiting mechanism of claim 1, wherein: the mounting block (31) is integrally connected with the connecting block (32).

5. The presser foot cup slide mount limiting mechanism of claim 1, wherein: the fixed block (33) is integrally connected with the limiting block (34).

6. The presser foot cup slide mount limiting mechanism of claim 1, wherein: the telescopic cylinder is characterized by further comprising a telescopic cylinder (5), wherein the telescopic cylinder (5) is provided with a cylinder hole (521) and a piston rod (51) located in the cylinder hole (521), the piston rod (51) is connected with the sliding seat (2), and the cylinder hole (521) of the telescopic cylinder (5) is not larger than 9mm.

7. The presser foot cup slide mount limiting mechanism of claim 1, wherein: the thickness of the fixed block (33) is between 6mm and 8mm, and the thickness of the limiting block (34) is between 2mm and 4 mm.

8. The presser foot cup slide mount limiting mechanism of claim 1, wherein: the thickness of the connecting block (32) is 7mm-9mm, and the thickness of the mounting block (31) is 8mm-10 mm.

Images