CN213744377U

CN213744377U - Spring fixing pin

Info

Publication number: CN213744377U
Application number: CN202022706358.XU
Authority: CN
Inventors: 王青; 张爱民
Original assignee: Suzhou Yaqi New Precision Machinery Co ltd
Current assignee: Hebei Xirui Spring Manufacturing Co ltd
Priority date: 2020-11-20
Filing date: 2020-11-20
Publication date: 2021-07-20
Anticipated expiration: 2030-11-20

Abstract

The utility model discloses a spring fixed pin, including the set casing, the center department of set casing left side inner wall installs the spring fixed block, wears to overlap on the spring fixed block to have the spring, and spring one end butt has the fixed pin. The production device of the spring fixing pin comprises a die cover and a lower die, wherein a fixing piece is arranged at the joint of the die cover and the lower die, a die injection port and a heat dissipation port are preset at the top of the upper die, a rotating shaft is fixedly arranged on the rear side surface of the die cover, a first gear is arranged on the right side of the rotating shaft, a connecting piece is arranged on the rear side surface of the lower die, the rotating shaft penetrates through the connecting piece, a motor is fixedly arranged on the right side of the rear side surface of the lower die, a second gear is arranged on an output shaft of the motor, the second gear is in meshing connection with the first gear for transmission, a forming bin is preset in the lower die, and cooling fins are fixedly connected to the outer sides of the left side and the right side of the forming bin; the utility model discloses can make spring fixed pin shaping rate and quality obtain improving, also make production efficiency obtain promoting.

Description

Spring fixing pin

Technical Field

The utility model relates to a spring fixed pin technical field specifically is a spring fixed pin.

Background

When the required position precision between the assemblies is higher, the pins are generally used for positioning, connecting and fixing, and the fixed pins are most commonly used at present. The fixed pin body has low positioning precision, and in order to ensure smooth assembly and disassembly of the parts, an assembly gap is needed, so that the positioning precision is influenced. The production device of the existing spring fixing pin easily generates bubbles in products during production, so that the product quality is influenced, and the product forming rate is not high.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a spring fixed pin to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a spring fixed pin, includes the set casing, set casing left side inner wall center department installs the spring fixed block, wears to overlap on the spring fixed block to have the spring, and there is the fixed pin spring one end butt, installs the connecting block on the set casing up the side, set casing right side port department is equipped with outer eaves, and outer eaves center department has preset and has worn the export, fixed cover is installed in outer eaves left side, the upper and lower both sides of fixed cover both sides fixed connection set casing inner wall about fixed cover, the fixed pin passes fixed cover and wears out from wearing the export, seted up the perforation on the set casing of connecting block left side, placed the screw in the perforation.

As a further aspect of the present invention: a threaded hole is preset in the connecting block, and the screw is in threaded connection with the threaded hole and can fix a fixing pin.

As a further aspect of the present invention: the length of the spring is greater than that of the spring fixing block, so that the overall length of the spring fixing pin can be controlled, and sufficient elastic force can be kept.

The production device of the spring fixing pin comprises a die cover and a lower die, wherein a fixing piece is arranged at the joint of the die cover and the lower die, a die injection port and a heat dissipation port are preset at the top of the upper die, a rotating shaft is fixedly arranged on the rear side surface of the die cover, a first gear is arranged on the right side of the rotating shaft, a connecting piece is arranged on the rear side surface of the lower die, and the rotating shaft penetrates through the connecting piece;

a motor is fixedly installed on the right side of the rear side face of the lower die, a second gear is installed on an output shaft of the motor, the second gear is meshed with the first gear for transmission, a forming bin is preset in the lower die, cooling fins are fixedly connected to the outer sides of the left side and the right side of the forming bin, cooling fans are fixedly installed on the outer sides of the cooling fins, and a forming supporting plate is placed at the bottom of the forming bin;

the bottom of lower mould is provided with the support, and the middle part fixed mounting of support has the slide rail, installs linear electric motor on the slide rail, installs the scissors pole on the linear electric motor, the top of scissors pole is provided with the ejector pin, the ejector pin runs through the lower mould bottom and connects the bottom of shaping layer board, the lower mould bottom of both sides has been preset oblique activity groove around the support, and oblique activity inslot left and right sides has been place and has been collided the ball, and oblique activity groove both sides's lower mould wall mounting has the air compressor pump, the air cock is installed to the air compressor pump front side, the air cock butt collides the ball.

As a further aspect of the present invention: the forming supporting plate is provided with a sealing ring at the contact position with the lower die, the sealing ring is made of high-temperature-resistant materials, and the sealing performance of the forming bin in a high-temperature environment can be guaranteed.

As a further aspect of the present invention: the inclined movable groove is provided with a limiting block in the middle, so that the collision balls on the left side and the right side can be prevented from sliding to the same side after being collided.

As a further aspect of the present invention: the radiating fins are made of brass, so that heat can be better absorbed.

As a further aspect of the present invention: the fixing piece is the carriage knot, and the quantity of fixing piece is two sets of at least, and the symmetry sets up in the left and right sides of lower mould, and the carriage is detained fixed effectual and easily dismantles.

Compared with the prior art, the utility model has the advantages of following several aspects:

the utility model discloses in, place the ball that hits in the oblique movable groove in lower mould bottom and take place the striking and produce the vibration under the gaseous promotion of air cock spun of air compressor pump front side installation, the vibration transmission gives the shaping storehouse for casting material in the shaping storehouse obtains closely knit, with the bubble discharge wherein, has improved the shaping rate and the quality of product.

The utility model discloses in, through installing the connecting block on the set pin, set up the perforation on the set casing, be equipped with the screw in the perforation, screw hole thread fixed connection in screw and the connecting block realizes the fixed to the fixed pin, avoids the fixed pin to break away from the locating hole under the exogenic action, loses the fixed action.

Drawings

Fig. 1 is a schematic diagram of a spring fixing pin.

Fig. 2 is a cross-sectional view of a spring retaining pin.

FIG. 3 is a schematic diagram showing the construction of a spring fixing pin producing apparatus.

Fig. 4 is a rear view of a spring fixing pin producing apparatus.

Fig. 5 is a longitudinal sectional view of the bottom of the lower die in the production apparatus of the spring fixing pin.

In the figure: 11. a stationary case; 12. a spring; 13. a spring fixing block; 14. an outer brim; 15. a penetration port; 16. a screw; 17. Perforating; 21. a fixing pin; 22. fixing a sleeve; 23. connecting blocks; 24; a threaded hole; 31. a mold cover; 32. a lower die; 33. a support; 34. a fixing member; 35. a molding bin; 36. injecting a mold opening; 37. a heat sink; 38. a heat radiation fan; 39. a connecting member; 41. a rotating shaft; 42. a motor; 43. a second gear; 44. a first gear; 51. shearing a fork rod; 52. forming a supporting plate; 53. A top rod; 54. a linear motor; 55. a slide rail; 61. an inclined movable groove; 62. knocking the ball; 63. an air compression pump; 64. an air tap; 65. and a limiting block.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-2, a spring fixing pin includes a housing and a pin body;

the shell comprises a fixed shell 11 and an outer eave 14, a spring fixed block 13 is installed at the center of the inner wall of the left side of the fixed shell 11, a spring 12 penetrates through the spring fixed block 13, the length of the spring 12 is larger than that of the spring fixed block 13, the overall length of the spring fixed pin can be controlled, enough elasticity is kept, the outer eave 14 is arranged at the right side port of the fixed shell 11, a penetrating port 15 is preset at the center of the outer eave 14, a through hole 17 is formed in the upper side of the fixed shell 11 on the left side of the outer eave 14, and a screw 16 is placed in the through hole 17;

the round pin body part includes fixed pin 21 and fixed cover 22, and fixed pin 21 left side butt spring 12, fixed pin 21 right side pass fixed cover 22 and wear out from the exit 15 of wearing out of 14 centers departments of outer eaves, install connecting block 23 on the fixed pin 21 on the side, have preset threaded hole 24 in the connecting block 23, screw 16 with screw hole 24 threaded connection can fixed pin 21, fixed cover 22 is installed on 14 left sides of outer eaves, the upper and lower both sides of fixed 11 inner walls of fixed shell of both sides fixed connection about fixed cover 22.

The working principle of the spring fixing pin is as follows: during assembly, the matched parts press the head of the fixing pin 21, the spring 12 is stressed to shrink, the fixing pin 21 shrinks towards the inside of the fixing shell 11, when the positioning hole in the matched part is aligned with the fixing pin 21, the fixing pin 21 can automatically pop out of the positioning hole to fix the matched part, after the fixing is completed, the screw 16 in the through hole 17 in the upper side of the fixing shell 11 is rotated, the screw 16 is in threaded connection with the threaded hole 24 in the connecting block 23 on the fixing pin 21, the fixing pin 21 is fixed, and the fixing pin 21 is prevented from being separated from the positioning hole under the action of external force and losing the fixing effect; when the tool is disassembled, the screw 16 is screwed out of the threaded hole 24, and the fixing pin 21 is pressed to be separated from the positioning hole, so that the matched part can be taken down.

Referring to fig. 3 to 5, the production apparatus for the spring fixing pin includes a mold, a driving part, a demolding part, and a vibrating part;

the die comprises a die cover 31 and a lower die 32, wherein fixing pieces 34 are arranged at the joint of the die cover 31 and the lower die 32, the fixing pieces 34 are carriage buckles, the number of the fixing pieces 34 is two, the fixing pieces are symmetrically arranged at the left side and the right side of the lower die 32, the carriage buckles are good in fixing effect and easy to detach, a die injection port 36 is preset at the top of the upper die, a forming bin 35 is preset inside the lower die 32, radiating fins 37 are fixedly connected to the left side and the right side of the forming bin 35, radiating fans 38 are fixedly arranged on the outer sides of the radiating fins 37, a connecting piece 39 is arranged on the rear side surface of the lower die 32, and a support 33 is fixedly arranged at the bottom of the lower die 32 and used for supporting and fixing a die structure;

the driving part comprises a motor 42 and a rotating shaft 41, the rotating shaft 41 is fixedly arranged on the rear side surface of the die cover 31, a first gear 44 is arranged on the right side of the rotating shaft 41, a connecting piece 39 is arranged on the rear side surface of the lower die 32, the rotating shaft 41 penetrates through the connecting piece 39, the motor 42 is fixedly arranged on the right side of the rear side surface of the lower die 32, a second gear 43 is arranged on an output shaft of the motor 42, the second gear 43 is in meshing connection transmission with the first gear 44, the motor 42 rotates to drive the second gear 43 to rotate, the second gear 43 is in meshing connection with the first gear 44, and the first gear 44 rotates to drive the die cover 31 to be opened;

the demolding component comprises a shear fork rod 51, a linear motor 54 and a slide rail 55, the slide rail 55 is arranged in the middle of the support 33, the linear motor 54 is mounted on the slide rail 55, the shear fork rod 51 is mounted on the linear motor 54, a top rod 53 is arranged at the top of the shear fork rod 51, the top rod 53 penetrates through the bottom of the lower die 32 and is connected with the bottom of the molding supporting plate 52, the top rod 53 is lifted and lowered through the reciprocal sliding of the linear motor 54, and the demolding of the molded fixing pin 21 is realized;

vibration part is including oblique movable groove 61, billiard ball 62 and air compressor pump 63, oblique movable groove 61 predetermines the lower mould 32 bottom in both sides around support 33, and the billiard ball 62 has been place to the oblique movable groove 61 left and right sides, and oblique movable groove 61 both sides's lower mould wall mounting has air compressor pump 63, be connected with air cock 64 on the air compressor pump 63, air cock 64 butt billiard ball 62, air compressor pump 63 will compress gas from air cock 64 blowout promotion billiard ball 62 to oblique movable groove 61 middle part motion, two take place to strike after hitting the ball 62 contact and produce the vibration, oblique movable groove 61 mid-mounting has stopper 65, can prevent the billiard ball 62 of the left and right sides and strike the back and slide to same one side.

The production device of the spring fixing pin has the working principle that: when the spring fixing pin is manufactured, the fixing piece 34 at the joint of the die cover 31 and the lower die 32 seals the die cover 31 and the lower die 32, then the melted casting material is poured into the forming bin 35 in the lower die 32 from the injection opening 36, after the forming bin 35 is filled, the air compression pump 63 is started, the air compression pump 63 sucks air for compression, compressed air is sprayed out from an air nozzle 64 connected to the front side of the air compression pump 63, the sprayed air pushes the two collision balls 62 to move towards the middle part of the inclined movable groove 61, the two collision balls 62 are contacted and then generate collision vibration, the vibration is transmitted to the forming bin 35, the casting material in the forming bin 35 is compacted, air bubbles are discharged, the heat generated by injection molding of the lower die 32 is absorbed by the radiating fins 37, the radiating fan 38 is started, the radiating fan 38 starts to work, the heat on the radiating fins 4 is dissipated by the radiating fan 38, and after the die is completely cooled, the fixing piece 34 is dismounted, the motor 42 is started, the motor 42 rotates to drive the second gear 43 to rotate, the second gear 43 is meshed with and connected with the first gear 44, the first gear 44 rotates to drive the die cover 31 to be opened, the linear motor 54 is started, the linear motor 54 slides towards the middle of the sliding rail 55 to enable the scissor rod 51 to be tightened, the ejector rod 53 is enabled to ascend, the forming supporting plate 52 is driven to move upwards, and then demoulding is conducted on the formed spring fixing pin 21.

Although the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present patent within the knowledge of those skilled in the art.

Claims

1. A spring fixing pin comprises a fixing shell (11) and is characterized in that a spring fixing block (13) is installed at the center of the inner wall of the left side of the fixing shell (11), a spring (12) is sleeved on the spring fixing block (13) in a penetrating mode, one end of the spring (12) is abutted to a fixing pin (21), a connecting block (23) is installed on the upper side face of the fixing pin (21), an outer eave (14) is arranged at the right side port of the fixed shell (11), a penetration port (15) is preset at the center of the outer eave (14), a fixed sleeve (22) is arranged at the left side of the outer eave (14), the upper side and the lower side of the fixed sleeve (22) are fixedly connected with the upper side and the lower side of the inner wall of the fixed shell (11), the fixing pin (21) penetrates through the fixing sleeve (22) and penetrates out of the penetrating port (15), a through hole (17) is formed in the fixing shell (11) on the left side of the connecting block (23), and a screw (16) is placed in the through hole (17).

2. A spring fixing pin according to claim 1, characterized in that a threaded hole (24) is foreseen in the connecting block (23).

3. A spring retaining pin according to claim 1, characterised in that the length of the spring (12) is greater than the length of the spring retaining block (13).