CN112427549A

CN112427549A - Self-lubricating mould

Info

Publication number: CN112427549A
Application number: CN202011039593.4A
Authority: CN
Inventors: 应玉龙
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-09-28
Filing date: 2020-09-28
Publication date: 2021-03-02

Abstract

The invention relates to the field of dies and discloses a self-lubricating die which comprises a movable die, a fixed die, a guide rod and a guide sleeve, wherein the guide rod comprises a fixed section fixed with the movable die and a buffer section matched with the fixed section in an elastic guide way, a self-lubricating buffer mechanism is arranged between the fixed section and the buffer section, the self-lubricating buffer mechanism comprises an oil storage cavity, an oil outlet micropore, an expansion link, a piston, an elastic buffer body and a hem, the oil storage cavity is sunken at one end of the buffer section close to the fixed section, the oil outlet micropore is arranged on the annular wall at one end, far away from the fixed section, of the oil storage cavity at intervals in the circumferential direction, the expansion link is convexly arranged at one end, close to the buffer section, of the fixed section, the piston is arranged at the end part of the expansion link and is in sealing fit with the oil storage cavity, the elastic buffer body is sleeved between the buffer section and, effectively improving the smoothness of the use of the die and prolonging the service life of the die.

Description

Self-lubricating mould

Technical Field

The invention relates to the field of dies, in particular to a self-lubricating die.

Background

Most of existing automobile parts are formed through stamping, generally, in the stamping process, in order to ensure the quality of the parts after production, a movable die and a fixed die are required to be matched perfectly, therefore, a guide structure is arranged between an upper die and a lower die, for example, a stamping die for automobile parts disclosed in Chinese patent with publication No. CN207655743U, a guide sleeve is arranged on the movable die, a guide rod is arranged on the fixed die, and when the movable die is pressed down by a hydraulic cylinder, the movable die moves along the guide rod, so that the impact block of the movable die can be matched perfectly with the impact groove of the fixed die.

However, because guide arm and uide bushing are the simple cooperation of interlude only, need manual additional lubrication oil after using a period, the cooperation department of guide arm and uide bushing can constantly take place wearing and tearing otherwise, leads to guide arm and uide bushing complex bite or even card to die, influences the life of whole equipment, and manual additional lubrication oil is comparatively troublesome, needs the machine to stop the operation, leads to production efficiency's reduction.

Disclosure of Invention

Aiming at the defect of low production efficiency caused by the fact that lubricating oil is added manually after a machine is stopped in a guide sleeve and a guide rod of a stamping die in the prior art, the invention provides a self-lubricating die capable of automatically adding lubricating oil without stopping operation.

In order to solve the technical problem, the invention is solved by the following technical scheme:

a self-lubricating die comprises a movable die, a fixed die, a guide rod arranged at the lower end of the movable die and a guide sleeve arranged in the fixed die and in penetrating fit with the guide rod, wherein the guide rod comprises a fixed section fixed with the movable die and a buffer section in elastic guide fit with the fixed section, a self-lubricating buffer mechanism is arranged between the fixed section and the buffer section, the self-lubricating buffer mechanism comprises an oil storage cavity with one end of the buffer section close to the fixed section sunken, and oil outlet micropores with the oil storage cavity arranged on the annular wall at the end far away from the fixed section at intervals in the circumferential direction, the fixed section is close to the protruding telescopic link of establishing of one end of buffer segment, in the telescopic link tip set up with the sealed complex piston in oil storage chamber, outside the telescopic link in buffer segment and the fixed section between the elastic buffer body of establishing of cover and in the outside perpendicular hem that supplies the uide bushing to press that extends of one end that the buffer segment is close to the fixed section, when movable mould and cover half compound die, the micropore that produces oil is located inside the uide bushing.

Preferably, the buffer section is provided with a pressure-maintaining and oil-injecting structure which can always extrude the lubricating oil from the oil outlet micropores when the die is clamped.

Preferably, pressurize oiling structure includes that the screw thread that is kept away from the one end of fixed section from the oil storage chamber to keeping away from the one end of fixed section an organic whole and run through the setting leads to the groove, leads to the groove with the screw thread and seal cooperation and length and is greater than the double-screw bolt that the screw thread led to the groove.

Preferably, pressurize oiling structure includes that the one end of keeping away from the fixed segment from the oil storage chamber is to the integrative screw thread that runs through the setting of one end of keeping away from the fixed segment and lead to the groove, with the sealed thread stopper of the sealed through groove seal fit, keep away from the integrative actuating lever that extends the buffer segment of one end in the sealed thread stopper and in the rotatory handle of the fixed setting of actuating lever tip.

Preferably, the piston is made of an elastic material and has an overall frustum shape with a tip facing the reservoir chamber.

Preferably, the elastic buffer body is a spring or a rubber block.

Due to the adoption of the technical scheme, the invention has the following remarkable technical effects: the existing integrated guide rod is arranged into a fixed section and a buffer section, a self-lubricating buffer mechanism is arranged between the fixed section and the buffer section, when the die is closed, the buffer section is driven to extrude towards the fixed section by utilizing the impact force during die closing, a piston on the fixed section is driven to extrude an oil storage cavity in the buffer section, and the oil storage cavity receives pressure to automatically add internal lubricating oil to the matching part of the buffer section and the guide sleeve; through the pressurize oiling structure that increases in addition, can adjust the oil pressure in oil storage chamber when making things convenient for the interpolation of lubricating oil to ensure when the compound die, all the time have lubricating oil from the oiliness micropore to the cooperation department interpolation of buffer segment and uide bushing, this self-lubricating mould can be when the operation automatic lubricating oil that adds and keep good buffering nature, effectively improve the smoothness nature and the life that the mould used.

Drawings

FIG. 1 is a front view of a self-lubricating mold of the present invention when it is open;

FIG. 2 is a cross-sectional view A-A of FIG. 1;

FIG. 3 is an enlarged view of A in FIG. 2;

FIG. 4 is a front view of a self-lubricating mold of the present invention when closed;

FIG. 5 is a cross-sectional view B-B of FIG. 4;

fig. 6 is an enlarged view of B in fig. 5.

The names of the parts indicated by the numerical references in the above figures are as follows: 1. moving the mold; 2. fixing a mold; 3. a guide sleeve; 4. a guide bar; 41. a fixed section; 42. a buffer section; 43. folding edges; 5. an elastic buffer body; 6. oil outlet micropores; 7. a threaded through slot; 8. sealing the threaded plug; 9. a drive rod; 10. rotating the handle; 11. a telescopic rod; 12. a piston; 13. an oil storage chamber.

Detailed Description

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

Examples

A self-lubricating mold is shown in the reference figure 1 and comprises a movable mold 1, a fixed mold 2, a guide rod 4 fixedly installed at the lower end of the movable mold 1 and a guide sleeve 3 installed in the fixed mold 2 and in penetrating fit with the guide rod 4, wherein the guide rod 4 comprises a fixed section 41 fixed on the movable mold 1 in an embedded mode and a buffer section 42 in elastic guide fit with the fixed section 41, and a self-lubricating buffer mechanism is arranged between the fixed section 41 and the buffer section 42. The self-lubricating buffer mechanism is arranged at the matching position of the guide sleeve 3 and the guide rod 4, and can automatically add lubricating oil to the matching position when the movable die 1 and the fixed die 2 are assembled, so that a good buffer effect can be achieved, and the service life of the die is effectively prolonged.

The self-lubricating buffer mechanism is specifically shown by referring to fig. 2-6, and comprises a concave oil storage cavity 13 at one end of a buffer section 42 close to a fixed section 41, oil outlet micropores 6 circumferentially spaced on a ring wall at one end of the oil storage cavity 13 far away from the fixed section 41, a telescopic rod 11 convexly arranged at one end of the fixed section 41 close to the buffer section 42, a piston 12 fixedly arranged at the end of the telescopic rod 11 and hermetically matched with the oil storage cavity 13, an elastic buffer body 5 sleeved between the buffer section 42 and the fixed section 41 outside the telescopic rod 11, and a folded edge 43 extending outwards and vertically at one end of the buffer section close to the fixed section 41 and used for abutting against a guide sleeve 3, wherein when a movable mold 1 and a fixed mold 2 are assembled, the oil outlet micropores 6 are positioned inside the guide sleeve 3. In the above arrangement, the piston is made of an elastic material and has a truncated cone shape with its tip facing the reservoir chamber 13 as a whole. Elastic buffer body 5 is spring or block rubber, during the compound die of movable mould 1 and cover half 2, when 3 upper ends of uide bushing and hem 43 butt, elastic buffer body 5 shrink orders about piston 12 extrusion oil storage chamber 13, lubricating oil in the oil storage chamber 13 is received the extrusion and is flowed to oil outlet micropore 6 department, extrude between the inner wall from buffer 42 outer wall of buffer segment and uide bushing 3 from oil outlet micropore 6 finally, play the self-lubricating about, and elastic buffer body 5's setting can play good cushioning effect.

Along with the consumption of lubricating oil, the squeezing action of the piston 12 is smaller and smaller, so a pressure maintaining and oil injecting structure is arranged on the buffer section 42, which can always extrude the lubricating oil from the oil outlet micropore 6 when the die is closed, and the lubricating oil can be added through the pressure maintaining and oil injecting structure, and the oil pressure in the oil storage cavity 13 can be always kept in the range that the piston 12 can squeeze through adjustment.

The pressurize oiling structure includes from oil storage chamber 13 keep away from the one end of fixed section 41 to keeping away from the integrative screw thread that runs through the setting of one end of fixed section 41 and lead to groove 7, lead to the sealed screw thread stopper 8 of the groove 7 seal fit with the screw thread, keep away from the integrative actuating lever 9 that extends buffer segment 42 of one end of oil storage chamber 13 and in the rotatory handle 10 of the fixed setting of actuating lever 9 tip in sealed screw thread stopper 8, through acting on rotatory handle 10, can order about sealed screw thread stopper 8 downstream, increase the oil pressure in the oil storage space through reducing the oil storage space.

In addition, the pressure maintaining structure can be arranged to be a stud which is in sealing fit with the threaded through groove 7 and is longer than the threaded through groove 7, and the oil pressure of the oil storage cavity 13 is changed by adjusting the stud.

The existing integrated guide rod 4 is arranged into the fixed section 41 and the buffer section 42, the self-lubricating buffer mechanism is arranged between the fixed section 41 and the buffer section 42, when the die is closed, the buffer section 42 is driven to extrude towards the fixed section 41 by utilizing the impact force during die closing, the piston 12 on the fixed section 41 is driven to extrude the oil storage cavity 13 in the buffer section 42, and the oil storage cavity 13 receives the pressure to automatically add the lubricating oil in the oil storage cavity to the matching part of the buffer section 42 and the guide sleeve 3; through the pressurize oiling structure that increases in addition, can adjust the oil pressure in oil storage chamber 13 when making things convenient for the interpolation of lubricating oil to ensure when the compound die, all the time lubricating oil from the micropore 6 that produces oil adds to the cooperation department of buffer segment 42 and uide bushing 3, this self-lubricating mould can be when the operation automatic lubricating oil that adds and keep good buffering nature, effectively improve the smoothness nature and the life that the mould used.

Claims

1. The utility model provides a self-lubricating mold, includes movable mould (1), cover half (2), installs in guide arm (4) of movable mould (1) lower extreme and installs and alternate complex uide bushing (3) with guide arm (4) in cover half (2), its characterized in that: the guide rod (4) comprises a fixed section (41) fixed with the moving die (1) and a buffer section (42) matched with the fixed section (41) in an elastic guide way, a self-lubricating buffer mechanism is arranged between the fixed section (41) and the buffer section (42), the self-lubricating buffer mechanism comprises an oil storage cavity (13) with one end of the buffer section (42) close to the fixed section (41) being sunken, oil outlet micropores (6) circumferentially arranged on the annular wall of one end of the oil storage cavity (13) far away from the fixed section (41) at intervals, a telescopic rod (11) convexly arranged at one end of the fixed section (41) close to the buffer section (42), a piston (12) arranged at the end part of the telescopic rod (11) and hermetically matched with the oil storage cavity (13), an elastic buffer body (5) sleeved between the buffer section (42) and the fixed section (41) outside the telescopic rod (11) and a hem (43) which is extended outwards and vertically and is used for pressing the guide sleeve (3) and is arranged at one end of the buffer section close, when the movable mold (1) and the fixed mold (2) are assembled, the oil outlet micropores (6) are positioned in the guide sleeve (3).

2. A self-lubricating die as set forth in claim 1, wherein: the buffer section (42) is provided with a pressure-maintaining oil injection structure which can always extrude lubricating oil from the oil outlet micropores (6) when the die is closed.

3. A self-lubricating die as set forth in claim 2, wherein: the pressure maintaining and oil injecting structure comprises a threaded through groove (7) and a stud, wherein the threaded through groove (7) is integrally formed in a penetrating mode from one end, far away from the fixed section (41), of the oil storage cavity (13) to one end, far away from the fixed section (41), of the stud is in sealing fit with the threaded through groove (7), and the length of the stud is larger than that of the threaded through groove (7).

4. A self-lubricating die as set forth in claim 2, wherein: the pressure-maintaining oil injection structure comprises a thread through groove (7) which is formed by integrally penetrating one end of the oil storage cavity (13) far away from the fixed section (41) to one end of the oil storage cavity (13) far away from the fixed section (41), a sealing thread plug (8) which is in sealing fit with the thread through groove (7), a driving rod (9) which integrally extends out of the buffer section (42) from one end of the sealing thread plug (8) far away from the oil storage cavity (13), and a rotating handle (10) which is fixedly arranged at the end part of the driving rod (9).

5. A self-lubricating die as set forth in claim 1, wherein: the piston (12) is made of elastic material and is in a frustum shape with the tip facing the oil storage cavity (13) as a whole.

6. A self-lubricating die as set forth in claim 1, wherein: the elastic buffer body (5) is a spring or a rubber block.