Pressure maintaining mechanism and production line

Abstract

The utility model relates to a pressure maintaining mechanism and a production line. The pressure maintaining mechanism comprises a telescopic driving source, a fixed seat, a main shaft, a pressure maintaining assembly and a mold, the output end of the telescopic driving source is connected with a push head; the fixing seat is used for guiding and supporting the main shaft, a buckle assembly used in cooperation with the push head is arranged on the fixing seat, and the buckle assembly comprises a clamping block which can be clamped into a limiting groove in the side face of the main shaft; the pressure maintaining assembly is used for adjusting the pressure maintaining pressure of the front end of the spindle. According to the pressure maintaining mechanism, pressure maintaining is conducted through a pure mechanical structure, in the whole pressure maintaining process, a telescopic driving source does not participate in the pressure maintaining mechanism, the pressure maintaining mechanism only serves as a power source to provide the stroke, and therefore the risk of leakage caused by continuous pressure maintaining of the driving source can be avoided, and the service life of the driving source is prolonged; and the adjusting process of the pressure maintaining pressure is also achieved through a mechanical structure, the telescopic driving source and a hydraulic system do not need to be adjusted, operation is easy, and meanwhile the service life of the telescopic driving source can be further prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to pressure maintaining device technical field especially is to point to a kind of pressure maintaining mechanism and production line. BACKGROUND

[0002] In industrial manufacturing, the assembly process of many products involves a pressure maintaining link to ensure the tight connection between components, prevent loosening or falling off, and thus improve the stability and durability of the product.

[0003] The existing pressure maintaining equipment is driven by a driving source such as an oil cylinder to maintain the pressure of the product. During the pressure maintaining process, the oil cylinder continuously bears a certain pressure, which reduces the service life of the oil cylinder. Moreover, the process of adjusting the pressure maintaining pressure is complicated, which is not conducive to the high-efficiency production of the entire production line. UTILITY MODEL CONTENTS

[0004] Therefore, the utility model solves the problem of the prior art that the pressure maintaining equipment is driven by a driving source such as an oil cylinder to maintain the pressure of the product. During the pressure maintaining process, the oil cylinder continuously bears a certain pressure, which reduces the service life of the oil cylinder. Moreover, the process of adjusting the pressure maintaining pressure is complicated, which is not conducive to the high-efficiency production of the entire production line.

[0005] To solve the above technical problems, the utility model provides a pressure maintaining mechanism, which comprises,

[0006] A telescopic driving source is connected to at least one push head at its output end.

[0007] A fixed seat is coaxially arranged at a distance from the telescopic driving source. A central through hole is formed in the fixed seat, and at least one set of buckle assemblies is arranged on the fixed seat. Each buckle assembly corresponds to one push head. Each buckle assembly comprises two symmetrically arranged clamping blocks on both sides of the corresponding push head. The clamping blocks are slidably connected to the fixed seat along the width direction of the fixed seat. The opposite ends of the two clamping blocks are provided with inclined surfaces. First springs are connected between the opposite ends of the two clamping blocks and the fixed seat.

[0008] A main shaft is coaxially arranged in the central through hole. An end cover is coaxially connected to one end of the main shaft close to the telescopic driving source. A second spring is arranged on the main shaft and abuts against the end cover and the fixed seat at both ends. A plurality of limiting grooves perpendicular to the axial direction of the main shaft are formed on the side surface of the main shaft. Each limiting groove corresponds to one clamping block.

[0009] A pressure maintaining assembly comprises a connecting seat, an adjusting nut and a third spring. The connecting seat is movably connected to the free end of the main shaft. The adjusting nut is threadedly connected to the main shaft and located between the connecting seat and the fixed seat. The third spring is arranged on the main shaft and abuts against the adjusting nut and the connecting seat at both ends.

[0010] a mold coaxially connected to the free end of the connecting seat.

[0011] In one embodiment of the utility model, the output end of telescopic drive source is provided with two push heads which are respectively located at the two sides of the main shaft, and the buckle assembly is provided with two groups and corresponds to one push head respectively.

[0012] In one embodiment of the utility model, the free end of the main shaft is coaxially sleeved with a shaft sleeve, one end of the shaft sleeve is connected with the adjusting nut, the other end is movably connected with the connecting seat, and the third spring is sleeved on the shaft sleeve.

[0013] In one embodiment of the utility model, the side surface of the end of the shaft sleeve away from the adjusting nut is provided with an annular protrusion, and a T-shaped hole matched with the annular protrusion is coaxially formed in the connecting seat and sleeved on the shaft sleeve.

[0014] In one embodiment of the utility model, the side surface of the adjusting nut is coaxially provided with an annular outer edge, the annular outer edge is coaxially connected with an annular connecting piece, and the shaft sleeve is connected with the annular connecting piece.

[0015] In one embodiment of the utility model, the annular connecting piece comprises a first annular connecting piece and a second annular connecting piece which are coaxially connected by fasteners and clamped on the annular outer edge, the second annular connecting piece is sleeved on the shaft sleeve, and an annular protrusion is arranged on the inner wall of the second annular connecting piece, the annular protrusion and the annular groove coaxially formed in the side surface of the shaft sleeve are mutually embedded.

[0016] In one embodiment of the utility model, the mold comprises a heat insulation plate, a heating plate, a connecting plate and a mold body, one end of the heat insulation plate is coaxially connected with the connecting seat, the other end is coaxially connected with the heating plate, and the heating plate away from the heat insulation plate is connected with the mold body through the connecting plate.

[0017] In one embodiment of the utility model, the free end of the push head is triangular.

[0018] In one embodiment of the utility model, the telescopic drive source adopts an oil cylinder.

[0019] A production line comprising the pressure maintaining mechanism according to any one of the preceding claims.

[0020] Compared with the prior art, the above technical scheme of the utility model has the following advantages:

[0021] The utility model provides a kind of pressure maintaining mechanism and production line, including telescopic drive source, fixed seat, main shaft, pressure maintaining component and mould, the output end of telescopic drive source is connected with push head;Fixed seat is coaxially arranged with interval with telescopic drive source, and the center through-hole is opened in fixed seat, and the buckle component corresponding with push head is arranged on fixed seat, and the buckle component includes two clamping blocks slidingly connected on fixed seat, and the first spring is connected between the end of two clamping blocks mutually diverging and fixed seat;Main shaft is arranged in the center through-hole, and the top end of main shaft is connected with end cover, and the second spring is sleeved on main shaft between end cover and fixed seat, while the limiting slot for clamping block is opened on the side surface of main shaft;Pressure maintaining component includes connecting seat, adjusting nut and third spring, connecting seat is movably connected to the free end of main shaft, adjusting nut is screwed on main shaft and located between connecting seat and fixed seat, and third spring is sleeved on main shaft, and its both ends are respectively in contact with adjusting nut and connecting seat;Mould is coaxially connected to the free end of connecting seat;The utility model discloses a kind of pressure maintaining mechanism, pressure maintaining is carried out to product by pure mechanical structure, and telescopic drive source is not involved in the whole pressure maintaining process, and it only provides stroke as power source, to avoid the risk of leakage due to continuous pressure maintaining of drive source, prolong the service life of drive source. And the adjustment process of pressure maintaining pressure is also realized by mechanical structure, without adjusting telescopic drive source and hydraulic system, not only simple operation, but also can further improve the service life of telescopic drive source. The structure of the whole pressure maintaining mechanism is simple, easy to install and maintain, and has high practicability. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to make the content of the utility model more easily understood clearly, the utility model is further explained in detail below according to the specific embodiments of the utility model and in combination with the drawings, wherein

[0023] Figure 1 is the schematic diagram of the overall structure of the pressure maintaining mechanism of the preferred embodiment of the utility model;

[0024] Figure 2 is the structure schematic diagram of the clamping block and limiting slot of the pressure maintaining mechanism of the preferred embodiment of the utility model;

[0025] Figure 3 is the structure schematic diagram of the buckle component of the pressure maintaining mechanism of the preferred embodiment of the utility model;

[0026] Figure 4 is the structure schematic diagram of the pressure maintaining component of the pressure maintaining mechanism of the preferred embodiment of the utility model.

[0027] The specification reference signs are explained: 1, telescopic drive source; 11, push head; 2, fixed seat; 21, buckle assembly; 211, clamping block; 212, first spring; 3, main shaft; 31, end cover; 32, second spring; 33, limiting groove; 34, shaft sleeve; 4, pressure maintaining assembly; 41, connecting seat; 42, adjusting nut; 43, third spring; 44, first annular connecting piece; 45, second annular connecting piece; 5, mold; 51, heat insulation plate; 52, heating plate; 53, connecting plate; 54, mold body. DETAILED DESCRIPTION

[0028] The utility model is further explained below in combination with the drawings and specific embodiments, so that the person skilled in the art can better understand the utility model and can be implemented, but the embodiment is not as the limitation of the utility model. Embodiment one

[0029] Referring to Figure 1 , Figure 2 , Figure 3 And Figure 4 The utility model discloses a pressure maintaining mechanism, comprising,

[0030] Telescopic drive source 1, its output end is connected with at least one push head 11;

[0031] Fixed seat 2, with telescopic drive source 1 interval arrangement and coaxial, the central through-hole is set up on fixed seat 2, and fixed seat 2 is provided with at least one buckle assembly 21, and the buckle assembly 21 corresponds to a push head 11 respectively, and the buckle assembly 21 all includes two symmetrical clamping blocks 211 that are arranged on the both sides of its corresponding push head 11, and the clamping block 211 is slidably connected with fixed seat 2 along the width direction thereof, and the opposite end of the two clamping blocks 211 is provided with an inclined surface, and the opposite end of the two clamping blocks 211 is connected with the first spring 212 between the fixed seat 2;

[0032] Main shaft 3, it is coaxially arranged in the central through-hole, and the end of main shaft 3 close to telescopic drive source 1 is coaxially connected with end cover 31, and the second spring 32 is sleeved on main shaft 3 and abuts against end cover 31 and fixed seat 2 respectively, and the side surface of main shaft 3 is provided with a plurality of limiting grooves 33 perpendicular to the axial direction thereof, and each limiting groove 33 corresponds to a clamping block 211;

[0033] Pressure maintaining assembly 4, it includes connecting seat 41, adjusting nut 42 and third spring 43, connecting seat 41 is movably connected to the free end of main shaft 3, adjusting nut 42 is screwed on main shaft 3 and is located between connecting seat 41 and fixed seat 2, and third spring 43 is sleeved on main shaft 3 and the opposite end thereof abuts against adjusting nut 42 and connecting seat 41 respectively;

[0034] Mold 5, mold 5 is coaxially connected to the free end of connecting seat 41.

[0035] Specifically, the output end of the oil cylinder (telescopic drive source 1) is arranged vertically downward, and the output end of the oil cylinder is symmetrically connected with two vertical push heads 11, and the free end of the push head 11 is triangular; the fixed seat 2 is coaxially arranged below the oil cylinder, a central through hole is coaxially arranged on the fixed seat 2, and two groups of buckle assemblies 21 are symmetrically arranged on the top of the fixed seat 2 and below the two push heads 11 respectively, each group of buckle assemblies 21 includes two clamping blocks 211 which are slidingly connected to the fixed seat 2 in the horizontal direction, the two clamping blocks 211 are symmetrically arranged on both sides of the push head 11 above with the center line of the push head 11 as the center, and the opposite side of the two clamping blocks 211 is arranged as an inclined surface matched with the shape of the push head 11, and the end of the two clamping blocks 211 away from each other is connected with a first spring 212 between the limiting plate vertically arranged on the top of the fixed seat 2; the main shaft 3 is arranged in the central through hole of the fixed seat 2, and an end cover 31 is coaxially arranged on the top of the main shaft 3, the outer diameter of the end cover 31 is larger than the outer diameter of the top of the main shaft 3, and a spring (second spring 32) is sleeved on the section of the main shaft 3 between the fixed seat 2 and the oil cylinder, one end of the spring abuts against the bottom of the end cover 31, and the other end abuts against the top of the fixed seat 2, and a plurality of limiting grooves 33 for clamping each clamping block 211 are arranged on the side surface of the main shaft 3; the bottom of the main shaft 3 is movably connected with a connecting seat 41, the connecting seat 41 can move axially relative to the main shaft 3, and the adjusting nut 42 is threadedly connected to the section of the main shaft 3 between the connecting seat 41 and the fixed seat 2, and the spring (third spring 43) is arranged on the main shaft 3 between the adjusting nut 42 and the connecting seat 41; the mold 5 is connected to the free end of the connecting seat 41.

[0036] Specifically, when the product is assembled and pressure maintained, the output end of the oil cylinder is elongated to press the main shaft 3 to move vertically downward, in this process, the second spring is gradually compressed, when the limiting grooves 33 on the side surface of the main shaft 3 are lowered to the position corresponding to each clamping block 211, each clamping block 211 is clamped into a limiting groove 33 under the action of the first spring, the oil cylinder is retracted, at this time the main shaft 3 is locked, the pressure maintaining assembly 4 and the mold 5 below the lower end of the main shaft 3 maintain the product at a fixed pressure maintaining pressure, after the pressure maintaining is completed, the output end of the oil cylinder is elongated again, so that each push head 11 is lowered between the two clamping blocks 211 below, and the two clamping blocks 211 are moved away from each other under the action of the inclined surface to release the main shaft 3, and the main shaft 3 is moved upward to reset under the action of the compressed first spring 212.

[0037] Specifically, by screwing the adjusting nut 42 of the pressure maintaining assembly 4, the compression degree of the third spring 43 can be adjusted, so that the pressure applied to the product is adjusted under the condition that the stroke of the main shaft 3 is certain, and the adjustment of the pressure maintaining pressure is realized.

[0038] The utility model discloses a kind of pressure maintaining mechanisms, and the pure mechanical structure is carried out to product for pressure maintaining, the whole pressure maintaining process telescopic drive source 1 (oil cylinder) does not participate in, telescopic drive source 1 only provides stroke as power source, to avoid the risk of leakage that telescopic drive source 1 and hydraulic system are produced due to sustained pressure maintaining, extend the service life of telescopic drive source 1.

[0039] Referring to Figure 2 Further, the output end of the telescopic drive source 1 is symmetrically provided with two push heads 11 located on both sides of the main shaft 3, and the buckle assembly 21 is provided with two groups and corresponds to one push head 11. It can be envisaged that the push head 11 and the buckle assembly 21 symmetrically arranged at both ends of the main shaft 3 cooperate with each other, so that the main shaft 3 can ensure force balance during work, which is beneficial to stable and accurate action.

[0040] Referring to Figure 4 Further, the free end of the main shaft 3 is coaxially sleeved with a shaft sleeve 34, one end of the shaft sleeve 34 is connected with an adjusting nut 42, the other end is movably connected with a connecting seat 41, and a third spring 43 is sleeved on the shaft sleeve 34. Specifically, the shaft sleeve 34 can avoid the third spring 43 directly contacting the main shaft 3, thereby improving the service life of the main shaft 3.

[0041] Further, an annular protrusion is arranged on the side of the end of the shaft sleeve 34 away from the adjusting nut 42, and a T-shaped hole matched with the annular protrusion is coaxially arranged on the connecting seat 41 and sleeved on the shaft sleeve 34. Specifically, the connecting seat 41 will not be detached from the bottom of the main shaft 3 through the cooperation of the annular protrusion and the T-shaped hole. Specifically, a stroke hole coaxial with the main shaft 3 is arranged on the top of the connecting seat 41, thereby providing a stroke space for the movement of the main shaft 3 in the vertical direction.

[0042] Further, an annular outer edge is coaxially arranged on the side of the adjusting nut 42, and a ring-shaped connecting piece is coaxially connected on the annular outer edge, and the shaft sleeve 34 is connected to the ring-shaped connecting piece.

[0043] Further, the annular connecting piece comprises a first annular connecting piece 44 and a second annular connecting piece 45 coaxially connected by fasteners and clamped on the annular outer edge, the second annular connecting piece 45 is sleeved on the shaft sleeve 34, and an annular protrusion is arranged on the inner wall of the second annular connecting piece 45, and the annular protrusion and the annular groove coaxially arranged on the side surface of the shaft sleeve 34 are matched with each other. Specifically, the inner hole of the first annular connecting piece 44 is a stepped hole and is sleeved on the annular outer edge, the second annular connecting piece 45 is coaxially connected below the first annular connecting piece 44 by fasteners and clamps the annular outer edge between the two to realize the connection with the adjusting nut 42, and the second annular connecting piece 45 is matched with the annular groove arranged on the side surface of the shaft sleeve 34 through the annular protrusion arranged on the inner wall to realize the connection between the two; preferably, the second annular connecting piece 45 is an annular structure composed of two semicircular rings, which facilitates the connection with the shaft sleeve 34.

[0044] Further, the mold 5 comprises a heat insulation plate 51, a heating plate 52, a connecting plate 53 and a mold body 54, one end of the heat insulation plate 51 is coaxially connected with the connecting seat 41, the other end is coaxially connected with the heating plate 52, and the end, away from the heat insulation plate 51, of the heating plate 52 is connected with the mold body 54 through the connecting plate 53.

[0045] Further, the free end of the push head 11 is triangular, but is not limited to triangular, and can also be circular arc-shaped or other shapes, as long as the push head 11 can push the two clamping blocks 211 to move away from each other during the descending process.

[0046] Further, the telescopic driving source 1 adopts an oil cylinder. Embodiment two

[0047] The utility model discloses still a kind of production line, including the pressure maintaining mechanism as embodiment one.

[0048] Obviously, the above embodiment is only an example for clearly illustrating, and is not limited to the implementation. For ordinary skilled in the art, other different forms of changes or variations can be made on the basis of the above description. Here, it is not necessary and impossible to enumerate all the embodiments. The obvious changes or variations derived therefrom are still within the protection scope of the utility model.

Claims

1. A pressure maintaining mechanism characterized by: The utility model relates to a kind of pressure maintaining mechanisms, including, Telescopic drive source, the output end of which is connected with at least one push head; Fixed seat, which is coaxially arranged with the telescopic drive source, has a central through-hole formed therein, and is provided with at least one set of buckle assemblies, each of which corresponds to one push head, each of the buckle assemblies comprises two symmetrically arranged clamping blocks on both sides of the corresponding push head, the clamping blocks are slidably connected to the fixed seat along the width direction of the fixed seat, and the opposite ends of the two clamping blocks are provided with inclined surfaces, and the ends of the two clamping blocks away from each other are connected to the fixed seat by a first spring; Main shaft, which is coaxially arranged in the central through-hole, has an end cap coaxially connected to the end of the telescopic drive source, and is provided with a second spring sleeved thereon, with one end of the second spring abutting against the end cap and the other end abutting against the fixed seat, and a plurality of limiting grooves perpendicular to the axial direction of the main shaft are formed in the side surface of the main shaft, each of the limiting grooves corresponding to one clamping block; Pressure maintaining assembly, which comprises a connecting seat, an adjusting nut and a third spring, the connecting seat is movably connected to the free end of the main shaft, the adjusting nut is threadedly connected to the main shaft and located between the connecting seat and the fixed seat, and the third spring is sleeved on the main shaft with one end abutting against the adjusting nut and the other end abutting against the connecting seat; Mold, which is coaxially connected to the free end of the connecting seat.

2. The pressure maintaining mechanism according to claim 1, characterized by: The output end of the telescopic drive source is symmetrically provided with two push heads located on both sides of the main shaft, and the buckle assemblies are provided with two sets, each corresponding to one push head.

3. The pressure maintaining mechanism according to claim 1, characterized by: The free end of the main shaft is coaxially sleeved with a shaft sleeve, one end of the shaft sleeve is connected to the adjusting nut, and the other end is movably connected to the connecting seat, and the third spring is sleeved on the shaft sleeve.

4. The pressure maintaining mechanism according to claim 3, characterized by: The side surface of the end of the shaft sleeve away from the adjusting nut is provided with an annular protrusion, and the connecting seat is coaxially provided with a T-shaped hole matching the annular protrusion and sleeved on the shaft sleeve.

5. The pressure maintaining mechanism according to claim 3, characterized by: The side surface of the adjusting nut is coaxially provided with an annular outer edge, the annular outer edge is coaxially connected with an annular connecting piece, and the shaft sleeve is connected to the annular connecting piece.

6. The pressure maintaining mechanism according to claim 5, characterized by: The annular connecting piece comprises a first annular connecting piece and a second annular connecting piece coaxially connected by a fastener and clamped on the annular outer edge, the second annular connecting piece is sleeved on the shaft sleeve, and the inner wall of the second annular connecting piece is provided with an annular protrusion, which is embedded with the annular groove coaxially formed in the side surface of the shaft sleeve.

7. The pressure maintenance mechanism of claim 1, wherein: The mold comprises an insulating plate, a heating plate, a connecting plate and a mold body, one end of the insulating plate is coaxially connected to the connecting seat, the other end is coaxially connected with the heating plate, and the end of the heating plate away from the insulating plate is connected with the mold body through the connecting plate.

8. The pressure maintenance mechanism of claim 1, wherein: The free end of the push head is triangular.

9. The pressure maintenance mechanism of claim 1, wherein: The telescopic drive source adopts an oil cylinder.

10. A production line, characterized by: The utility model relates to a kind of pressure maintaining mechanisms, including as claimed in any one of claims 1-9.

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