CN107738198B - Grinding wheel demolding press head and grinding wheel demolding equipment using same - Google Patents
Grinding wheel demolding press head and grinding wheel demolding equipment using same Download PDFInfo
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- CN107738198B CN107738198B CN201711330553.3A CN201711330553A CN107738198B CN 107738198 B CN107738198 B CN 107738198B CN 201711330553 A CN201711330553 A CN 201711330553A CN 107738198 B CN107738198 B CN 107738198B
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- grinding wheel
- pressing
- demolding
- frame
- die frame
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D18/00—Manufacture of grinding tools or other grinding devices, e.g. wheels, not otherwise provided for
- B24D18/0009—Manufacture of grinding tools or other grinding devices, e.g. wheels, not otherwise provided for using moulds or presses
Abstract
The invention relates to a grinding wheel demolding press head and grinding wheel demolding equipment using the same, wherein the grinding wheel demolding equipment comprises a press machine, the press machine comprises a press frame, a pressing plate capable of moving up and down under the drive of a driving mechanism is arranged on the press frame, the grinding wheel demolding equipment further comprises a grinding wheel demolding press head fixed on the pressing plate, the grinding wheel demolding press head comprises a press head body, the press head body is provided with at least two press head parts which are arranged at intervals along the circumferential direction, each press head part is provided with a pressing surface for pressing a corresponding single die frame, and a vertical gap for the corresponding single die frame to pass through in the up-down direction is arranged between the two press head parts. The invention provides a demolding pressure head capable of reducing demolding pressure required by a press machine.
Description
Technical Field
The invention relates to a grinding wheel demoulding pressure head and grinding wheel demoulding equipment using the same in the field of grinding wheel manufacturing.
Background
Grinding wheels are a common machining die that can perform rough grinding and semi-finish grinding on the outer circle, the inner circle, the plane and various molded surfaces of a metal or non-metal part when rotating at a high speed. The grinding wheel is generally manufactured by a grinding wheel mold, sand grains for manufacturing the grinding wheel are placed in the grinding wheel mold, and the sand grains are pressed into the grinding wheel under the action of high pressure. The existing grinding wheel mould generally comprises an outer mould frame, an inner mould frame, an upper mould and a lower mould. Chinese patent CN206445705U discloses a grinding wheel mold and a mold frame thereof, wherein the mold frame is assembled by at least two mold frame halves circumferentially arranged, each mold frame half has a convex portion and a concave portion at both circumferential sides, and when in use, each mold frame is connected end to end, that is to say, the convex portion of one mold frame half of two adjacent mold frame halves is adapted to be inserted into the concave portion of the other mold frame half.
When demolding is needed, the die frame is placed on a workbench of a press machine, then the die frame is tilted by manpower through a crow bar, an annular supporting block is arranged on the lower side of the grinding wheel blank in a cushioning mode, an annular demolding pressure head arranged on a pressure plate of the press machine presses the die frame, and the die frame moves downwards under the condition of being pressed and is separated from the grinding wheel blank to realize demolding. The existing demolding process has the following problems: the grinding wheel demoulding pressure head is of an annular structure, the grinding wheel demoulding pressure head can generate acting force on each die frame petal, the contact area between all die frame petals and the grinding wheel blank is larger, the contact force is larger, the required demoulding force is larger, and the pressure requirement on the press machine is higher; in addition, after the die frame is separated from the grinding wheel blank, the die frame can drop onto the workbench in a heavy manner, so that a certain bump can be caused, and the service lives of the die frame and the workbench are influenced; the weight of the mould frame and the grinding wheel is heavy, so that the grinding wheel mould is tilted manually, time and labor are consumed, and the whole grinding wheel mould is tilted from the workbench.
Disclosure of Invention
The invention aims to provide a demolding pressure head capable of reducing demolding pressure required by a press; the invention also aims to provide grinding wheel demolding equipment using the demolding pressure head.
In order to solve the technical problems, the technical scheme of the invention is as follows:
the grinding wheel demolding pressing head comprises a pressing head body, wherein the pressing head body is provided with at least two pressing head parts which are arranged at intervals along the circumferential direction, each pressing head part is provided with a pressing surface for pressing a corresponding single die frame, and a vertical gap for the corresponding single die frame to pass through in the up-down direction is arranged between the two pressing head parts.
The pressing head part is a tile plate structure with an axis extending along the up-down direction.
The pressure head body comprises a mounting plate which is fixedly arranged on a corresponding press machine, and each pressure head part is fixedly arranged at the bottom of the mounting plate.
The technical scheme of the grinding wheel demoulding equipment is as follows:
the grinding wheel demolding device comprises a press machine, wherein the press machine comprises a press frame, a pressing plate capable of moving up and down under the drive of a driving mechanism is arranged on the press frame, the grinding wheel demolding device further comprises a grinding wheel demolding press head fixed on the pressing plate, the grinding wheel demolding press head comprises a press head body, the press head body is provided with at least two press head parts which are arranged at intervals along the circumferential direction, each press head part is provided with a pressing surface for pressing a corresponding single die frame, and a vertical gap for the corresponding single die frame to pass through in the up-down direction is formed between the two press head parts.
The pressing head part is a tile plate structure with an axis extending along the up-down direction.
The pressure head body comprises a mounting plate which is fixedly arranged on a corresponding press machine, and each pressure head part is fixedly arranged at the bottom of the mounting plate.
The press frame is also provided with a workbench positioned at the lower side of the grinding wheel demoulding pressure head and a grinding wheel supporting cushion block arranged on the workbench, the grinding wheel demoulding equipment further comprises a grinding wheel mould buffer device, and the grinding wheel mould buffer device comprises a base and a floating bearing plate which is arranged on the base through a spring and can float up and down and is used for bearing corresponding mould frame petals.
The grinding wheel die buffering device is arranged on the periphery of the grinding wheel supporting cushion block, and a notch for the grinding wheel supporting cushion block to pass through is formed in the grinding wheel die buffering device.
The pressing plate is provided with a lifting mechanism, and the lifting mechanism is provided with a lifting action output end which is used for being connected with the die frame valve to lift the die frame.
The lifting mechanism comprises at least one lifting winch, a lifting steel wire rope is wound on a winding drum of the lifting winch, the lifting action output end is arranged on the lifting steel wire rope, the lifting winch is fixed at the upper end of a pressing plate, and a steel wire rope through hole penetrating through the pressing plate along the up-down direction and allowing the corresponding lifting steel wire rope to pass through is formed in the pressing plate.
The beneficial effects of the invention are as follows: when the die frame pressing device is used, the die frame halves of the die frame are pressed through the grinding wheel demolding pressing heads, each pressing head part presses one die frame half due to the fact that the pressing head parts of the grinding wheel demolding pressing heads are arranged at intervals, only one die frame half is supplied between every two adjacent pressing head parts to pass through, and therefore the die frame halves on the two circumferential sides of the corresponding die frame halves can be pressed out.
Drawings
FIG. 1 is a use state diagram of embodiment 1 of the present invention;
fig. 2 is an enlarged view at a in fig. 1;
FIG. 3 is a schematic view of the wheel die cushion apparatus of FIG. 1;
FIG. 4 is a top view of FIG. 3;
FIG. 5 is a schematic view of the abrasive wheel demolding indenter of FIG. 1;
fig. 6 is a schematic structural view of the mold frame of fig. 1.
Detailed Description
Example 1 of the grinding wheel demolding device is shown in fig. 1 to 6: the device comprises a press machine, wherein the press machine comprises a press machine frame, and the press machine frame comprises four guide upright posts 2, a top seat 1 fixed at the tops of the four guide upright posts and a press machine base 7 fixed at the bottoms of the four guide upright posts. The guide upright post 2 is also fixed with a workbench 6, the top seat is provided with a driving mechanism, the driving mechanism in the embodiment is a hydraulic cylinder 8 which is vertically arranged, a piston rod of the hydraulic cylinder is connected with a pressing plate 3 which is matched with the guide upright post in a guide movement manner, and the pressing plate can move up and down along the guide upright post under the driving of the hydraulic cylinder. The pressing plate is provided with a lifting mechanism, the lifting mechanism comprises two lifting hoisting machines 12 which are arranged at intervals along the circumferential direction of the pressing plate, lifting steel wire ropes 12-1 are wound on reels of the lifting hoisting machines 12, the lower ends of the lifting steel wire ropes 12-1 are lifting action output ends which are used for being connected with a die frame, in the embodiment, the die frame is provided with die hangers, the lifting action output ends are provided with hooks which are matched with the die hangers 5 on the die frame 10, and the hooks form a detachable connection structure for realizing detachable connection of the lifting action output ends and the die frame. In this embodiment, the lifting winch 12 is fixed at the upper end of the pressing plate, and a wire rope via hole 15 for passing a corresponding lifting wire rope is provided on the pressing plate 3 to penetrate the pressing plate in the up-down direction.
The grinding wheel demolding device further comprises a grinding wheel supporting cushion block 13 arranged on the workbench, the grinding wheel supporting cushion block 13 is used for supporting the grinding wheel blank 11, the grinding wheel demolding device further comprises a grinding wheel die buffer device 14 arranged on the periphery of the grinding wheel supporting cushion block, the grinding wheel die buffer device 14 comprises a buffer device base 14-3 and a floating bearing plate 14-1 which is arranged on the base through springs 14-2 and can float up and down and is used for bearing a grinding wheel die, the springs are arranged into an inner layer and an outer layer, and each layer is provided with a plurality of springs distributed along the circumferential direction. The grinding wheel die buffer device 14 is of a C-shaped structure as a whole, that is, the grinding wheel die buffer device is provided with a notch 14-4 which can be used for the radial passing of a grinding wheel supporting cushion block, so that the grinding wheel die buffer device can be conveniently placed on a workbench, and the grinding wheel die does not need to be lifted up too high as a whole. As shown in fig. 6, the mold frame 10 in this embodiment includes six mold frame segments 10-1 sequentially arranged along the circumferential direction, and positioning protrusions 10-2 and positioning grooves 10-3 are respectively disposed on two circumferential sides of each mold frame segment 10-1, so that the entire mold frame can be assembled together along the axial direction. The grinding wheel demolding press heads 9 are arranged on the pressing plates, the grinding wheel demolding press heads 9 comprise press head bodies, each press head body comprises a mounting plate 9-1 fixedly connected with the pressing plate 3, three press head parts 9-2 which are arranged at intervals along the circumferential direction are arranged at the bottom of each mounting plate 9-1, each press head part 9-2 is a tile plate structure with an axis extending along the up-down direction, the bottom of each press head part 9-2 is provided with a pressing surface 9-4 for pressing a corresponding die frame valve, and a vertical gap 9-3 for a single die frame valve to pass through along the up-down direction is reserved between every two adjacent press head plates.
During specific operation, the hooks at the lower end of the lifting steel wire rope are hung on the die hanging lugs, the lifting winch drives the grinding wheel die to move upwards, then the grinding wheel supporting cushion block is placed on the lower side of the grinding wheel blank, the grinding wheel die buffering device is placed on the workbench from the radial direction, then the hooks are taken down, the grinding wheel demolding pressing heads 9 move downwards, the pressing head parts 9-2 which are arranged at intervals are used for pressing out the three die frame flaps 10-1 corresponding to the intervals from the lower side, so that the general contact area between the die frame and the grinding wheel blank 11 can be reduced, the contact force is greatly reduced, the demolding force is reduced, the pressure requirement on the press is reduced, the die frame flaps fall on the floating bearing plate, the impact force can be reduced by the springs, the damage of the grinding wheel die due to rigid landing is avoided, the rest of the die frame flaps can be directly taken away from the grinding wheel blank in the radial direction, and the demolding process of the grinding wheel blank is simple and convenient.
In other embodiments of the invention: the detachable connection structure can also be a bolt connection structure; the lifting mechanism can also be a hydraulic cylinder and air cylinder lifting mechanism; the lifting winch can also be fixed at the lower end of the pressing plate; the driving mechanism can also be a pneumatic cylinder or an electric push rod and the like; the number of the hoisting winches can be set according to the needs, such as one, three or other numbers; the number of the pressing heads can be selected according to the needs, for example, when the number of the die frame is four, the number of the pressing heads can be two; the pressing head part can also be a tile plate structure, for example, a straight plate structure with the pressing head part as an axis and extending along the up-down direction.
Examples of grinding wheel demolding rams are shown in fig. 1 and 5: the specific structure of the grinding wheel demolding indenter is the same as that described in the above-described embodiments of the grinding wheel demolding apparatus, and will not be described in detail here.
Claims (10)
1. The grinding wheel demoulding pressure head is characterized in that: the grinding wheel die comprises a pressing head body, wherein the pressing head body is provided with at least two pressing head parts which are arranged at intervals along the circumferential direction, each pressing head part is provided with a pressing surface for pressing a corresponding single die frame, a vertical gap for the corresponding single die frame to pass through in the up-down direction is formed between the two pressing head parts, the number of the pressing head parts is three, the grinding wheel die comprises six die frame halves which are sequentially arranged along the circumferential direction, and the circumferential two sides of each die frame are respectively provided with a positioning protrusion and a positioning groove.
2. The abrasive wheel demolding indenter of claim 1, wherein: the pressing head part is a tile plate structure with an axis extending along the up-down direction.
3. The grinding wheel demolding indenter according to claim 1 or 2, characterized in that: the pressure head body comprises a mounting plate which is fixedly arranged on a corresponding press machine, and each pressure head part is fixedly arranged at the bottom of the mounting plate.
4. The grinding wheel demolding device comprises a press machine, wherein the press machine comprises a press machine frame, a pressing plate capable of moving up and down under the driving of a driving mechanism is arranged on the press machine frame, and the grinding wheel demolding device further comprises a grinding wheel demolding pressure head fixed on the pressing plate, and is characterized in that: the grinding wheel demolding pressing head comprises a pressing head body, wherein the pressing head body is provided with at least two pressing head parts which are arranged at intervals along the circumferential direction, each pressing head part is provided with a pressing surface for pressing a corresponding single die frame, a vertical gap for the corresponding single die frame to pass through in the up-down direction is formed between the two pressing head parts, the number of the pressing head parts is three, the grinding wheel mold comprises six die frame halves which are sequentially arranged along the circumferential direction, and the circumferential two sides of each die frame are respectively provided with a positioning protrusion and a positioning groove.
5. The grinding wheel demolding apparatus of claim 4, wherein: the pressing head part is a tile plate structure with an axis extending along the up-down direction.
6. The grinding wheel demolding apparatus of claim 4, wherein: the pressure head body comprises a mounting plate which is fixedly arranged on a corresponding press machine, and each pressure head part is fixedly arranged at the bottom of the mounting plate.
7. The grinding wheel demolding apparatus according to any one of claims 4 to 6, characterized in that: the press frame is also provided with a workbench positioned at the lower side of the grinding wheel demoulding pressure head and a grinding wheel supporting cushion block arranged on the workbench, the grinding wheel demoulding equipment further comprises a grinding wheel mould buffer device, and the grinding wheel mould buffer device comprises a base and a floating bearing plate which is arranged on the base through a spring and can float up and down and is used for bearing corresponding mould frame petals.
8. The grinding wheel demolding apparatus of claim 7, wherein: the grinding wheel die buffering device is arranged on the periphery of the grinding wheel supporting cushion block, and a notch for the grinding wheel supporting cushion block to pass through is formed in the grinding wheel die buffering device.
9. The grinding wheel demolding apparatus of claim 7, wherein: the pressing plate is provided with a lifting mechanism, and the lifting mechanism is provided with a lifting action output end which is used for being connected with the die frame valve to lift the die frame.
10. The grinding wheel demolding apparatus of claim 9, wherein: the lifting mechanism comprises at least one lifting winch, a lifting steel wire rope is wound on a winding drum of the lifting winch, the lifting action output end is arranged on the lifting steel wire rope, the lifting winch is fixed at the upper end of a pressing plate, and a steel wire rope through hole penetrating through the pressing plate along the up-down direction and allowing the corresponding lifting steel wire rope to pass through is formed in the pressing plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711330553.3A CN107738198B (en) | 2017-12-11 | 2017-12-11 | Grinding wheel demolding press head and grinding wheel demolding equipment using same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711330553.3A CN107738198B (en) | 2017-12-11 | 2017-12-11 | Grinding wheel demolding press head and grinding wheel demolding equipment using same |
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| Publication Number | Publication Date |
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| CN107738198A CN107738198A (en) | 2018-02-27 |
| CN107738198B true CN107738198B (en) | 2023-10-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201711330553.3A Active CN107738198B (en) | 2017-12-11 | 2017-12-11 | Grinding wheel demolding press head and grinding wheel demolding equipment using same |
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| CN114082924A (en) * | 2021-11-24 | 2022-02-25 | 王林 | Automatic demoulding device for impurity separation in steel part forming |
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