Grinding wheel pressing die

Abstract

The utility model relates to the technical field of grinding wheel production, in particular to a grinding wheel pressing die which comprises supporting feet, a base and a pressing assembly, the base is fixedly connected with the upper surfaces of the supporting feet, a shaping die is connected to the upper surface of the base in a bolted mode, a support is fixedly connected to the upper surface of the base, a hydraulic cylinder is installed on the upper surface of the support, and the hydraulic cylinder is connected with the pressing assembly. The driving end of the hydraulic cylinder penetrates through the lower surface of the support, the pressing assembly is arranged at the driving end of the hydraulic cylinder and comprises a connecting lantern ring, the connecting lantern ring is connected with the driving end of the hydraulic cylinder in a sleeved mode, and a threaded hole is formed in the surface of the connecting lantern ring. Through the arrangement of the pressing assembly and the auxiliary assembly, the force applied to the pressing structure by the equipment during processing is more uniform, so that the problem of non-uniform force application of the pressing structure in the pressing process due to the fact that the pressure applied by the equipment is located on one point is solved, and the processing effect of the equipment is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of grinding wheel production, in particular to a grinding wheel pressing die. Background Art

[0002] Grinding wheel is also called bonded abrasive tool. Grinding wheel is a bonded abrasive tool with a certain strength that is formed by bonding ordinary abrasive into a certain shape. It is generally composed of abrasive, bond and pores. These three parts are often called the three elements of bonded abrasive tools. According to the different classifications of bond, common ones are ceramic grinding wheel, resin grinding wheel and rubber grinding wheel. When producing grinding wheel, pressing mold is used to shape the grinding wheel material to ensure the composite design size and specifications of the processed grinding wheel.

[0003] Prior art, such as the utility model with publication number CN220030582U, discloses a pressing and forming mold for manufacturing ceramic grinding wheels. The patent adopts a base plate and a mold body. The pressing and forming mold for manufacturing ceramic grinding wheels, through the setting of a support plate, a U-shaped plate, a first electric hydraulic push rod, a first guide rod, a first block, a lower pressure plate, a first connecting rod, a first guide ring, a second electric hydraulic push rod, a second guide rod, a second block, an upper pressure plate, a second connecting rod and a second guide ring, enables the pressing and forming mold for manufacturing ceramic grinding wheels to facilitate two-way pressing and improve the quality of the product. The cooperation of the upper pressure plate and the lower pressure plate facilitates two-way pressing. The cooperation of the first guide rod, the first guide ring, the second guide rod and the second guide ring facilitates positioning and movement, improves the stability of pressing, and achieves the purpose of improving practicality. It solves the problem that the existing equipment is not convenient for two-way pressing of materials to form them, resulting in poor product quality, and the patent has the problem of low work efficiency for rapid installation and disassembly of the mold.

[0004] In the process of processing grinding wheels with the help of pressing molds, there are existing pressing molds such as the above-mentioned pressing molds whose driving structure is directly connected to the pressing structure. Since the connection area between the driving structure and the pressing structure is small, when the driving structure squeezes the pressing structure, the pressure on the pressing structure will be concentrated on the center point. At the same time, the pressure on the outside of the pressing structure will be lower than that in the middle part, which makes the pressure applied to the material by the equipment uneven during the pressing operation, resulting in the problem that the strength of the edge of the processed grinding wheel is lower than that of the middle area. Utility Model Content

[0005] The purpose of the utility model is to solve, at least to a certain extent, the problem in the prior art that the pressure on the outer side of the pressing structure is lower than that in the middle part, which results in uneven pressure applied to the material by the equipment during the pressing operation, resulting in the strength of the processed grinding wheel edge being lower than that in the middle area, and to propose a grinding wheel pressing mold.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a grinding wheel pressing mold, comprising a support leg, a base and a pressing assembly, the base is fixedly connected to the upper surface of the support leg, the upper surface of the base is bolted with a shaping mold, the upper surface of the base is fixedly connected with a bracket, the upper surface of the bracket is equipped with a hydraulic cylinder, the driving end of the hydraulic cylinder passes through the lower surface of the bracket, the pressing assembly is arranged on the driving end of the hydraulic cylinder, the pressing assembly comprises a connecting ring, the connecting ring is socketed with the driving end of the hydraulic cylinder, the surface of the connecting ring is provided with a threaded hole, the connecting ring is located on the inner wall of the threaded hole and is threadedly connected with a fixing bolt, the driving end of the hydraulic cylinder is provided with a hole, the fixing bolt is plugged into the inner wall of the hole, the lower surface of the connecting ring is fixedly connected with a tripod, the lower surface of the tripod is fixedly connected with a connecting column, the lower end of the connecting column is fixedly connected with a positioning sleeve, and the lower surface of the positioning sleeve is fixedly connected with a pressing plate.

[0007] Preferably, a through hole is opened on the surface of the pressing plate, and the diameter of the through hole is adapted to the core of the shaping mold. By opening the through hole on the surface of the pressing plate, the pressing plate can be inserted into the shaping mold and the extrusion effect on the material inside the shaping mold is increased.

[0008] Preferably, the number of the connecting columns is three, and the three connecting columns are diagonally arranged with respect to the tripod. The number of the positioning sleeves matches the connecting columns. The connecting columns installed under the tripod can cooperate with the positioning sleeves to connect the tripod and the pressure plate to achieve a linkage effect between the two.

[0009] Preferably, the pressing plate is located directly above the shaping mold, and the outer diameter of the pressing plate is matched with the inner diameter of the shaping mold. The pressing plate installed under the positioning sleeve can be moved into the shaping mold when the hydraulic cylinder is working, and the material in the shaping mold can be squeezed to achieve shaping of the material.

[0010] Preferably, an auxiliary component is provided on the upper surface of the pressure plate, and the auxiliary component includes a connecting frame, the connecting frame is fixedly connected to the upper surface of the pressure plate, both ends of the connecting frame are fixedly connected with a pull plate, the surface of the pull plate is slidably connected with an L-shaped frame, the surface of the pull plate is fixedly connected with a restraining slider, the restraining slider is slidably connected to the inner wall of the L-shaped frame, the side surface of the L-shaped frame is fixedly connected with a top plate, the upper surface of the top plate is fixedly connected with a push rod, the upper surface of the push rod is fixedly connected with a force-loading plate, the force-loading plate is located on the inner wall of the molding mold, and the pull plate and the pressure plate can be connected by a connecting frame installed above the pressure plate, so that the pressure plate can cooperate with the connecting frame to pull the pull plate for displacement while being pulled by the hydraulic cylinder.

[0011] Preferably, the number of the pull plates is two, and the two pull plates are symmetrically arranged about the connecting frame. The number of the L-shaped frames matches the pull plates. By installing the L-shaped frames on the surfaces of the pull plates, the top plate can be pulled upward with the cooperation of the restraining slider, so that the top plate can push the top rod to lift the load plate.

[0012] Preferably, there are four push rods, which are arranged in a circular array about the force-carrying plate. The push rods penetrate the upper surface of the base, the force-carrying plate penetrates the inner wall of the molding mold, and the force-carrying plate is socketed with the surface of the mold core. By installing the force-carrying plate inside the molding mold, the workpiece in the molding mold can be ejected after the equipment completes processing, so that the operator can extract the workpiece.

[0013] Compared with the prior art, the advantages and positive effects of the utility model are:

[0014] In the utility model, by setting a pressing component and an auxiliary component, when producing a grinding wheel, it is ensured that the pressing component and the auxiliary component are in a semi-expanded state, the material used for processing is added to the shaping mold, the switch of the hydraulic cylinder is turned on, the hydraulic cylinder is energized to cooperate with the connecting ring to push the tripod downward, the tripod cooperates with the connecting column and the positioning sleeve to evenly distribute the pressure applied by the hydraulic cylinder to the pressing plate, and at the same time the connecting column pushes the pressing plate, the pressing plate is pushed into the shaping mold, and the material in the shaping mold is evenly squeezed, the material is shaped under the squeezing of the pressing plate, and when the material is shaped and converted into a workpiece, the hydraulic cylinder is controlled to reset, and the hydraulic cylinder pulls the pressing component out The shaping mold and the connecting frame are lifted by the pressure plate and pull the pull plate. When the pull plate and the restraining slider move to the maximum spacing, the pull plate and the restraining slider pull the L-shaped frame, and the L-shaped frame pulls the top plate. The top plate cooperates with the top rod to lift the load-bearing plate. The load-bearing plate is forced to push the workpiece out of the shaping mold. When the workpiece is completely separated from the shaping mold, the workpiece can be removed from the load-bearing plate. By setting the pressing component and the auxiliary component, the force applied by the equipment to the pressing structure during processing is more uniform, thereby reducing the pressure applied by the equipment at one point, resulting in uneven force application of the pressing structure during the pressing process, and further improving the processing effect of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A three-dimensional structural schematic diagram of a grinding wheel pressing mold is proposed for the utility model;

[0016] Figure 2 A semi-expanded structural schematic diagram of a grinding wheel pressing die is proposed for the utility model;

[0017] Figure 3 A fully expanded structural schematic diagram of a grinding wheel pressing die is provided for the utility model;

[0018] Figure 4A partial structural schematic diagram of a grinding wheel pressing die is provided for the utility model;

[0019] Figure 5 The utility model provides a partial structural schematic diagram of a grinding wheel pressing mold.

[0020] Legend:

[0021] 1. Support leg; 2. Base; 3. Shaping mold; 4. Bracket; 5. Hydraulic cylinder; 6. Pressing assembly; 61. Connecting ring; 62. Fixing bolt; 63. Tripod; 64. Connecting column; 65. Positioning sleeve; 66. Pressing plate; 67. Through hole; 7. Auxiliary assembly; 71. Connecting frame; 72. Pull plate; 73. L-shaped frame; 74. Constraint slider; 75. Top plate; 76. Push rod; 77. Loading plate. DETAILED DESCRIPTION

[0022] See also Figure 1-Figure 5 The utility model provides a technical solution: a grinding wheel pressing mold, including a support leg 1, a base 2 and a pressing component 6, the base 2 is fixedly connected to the upper surface of the support leg 1, the upper surface of the base 2 is bolted with a shaping mold 3, the upper surface of the base 2 is fixedly connected with a bracket 4, the upper surface of the bracket 4 is installed with a hydraulic cylinder 5, the driving end of the hydraulic cylinder 5 passes through the lower surface of the bracket 4, the pressing component 6 is arranged at the driving end of the hydraulic cylinder 5, and the upper surface of the pressure plate 66 is provided with an auxiliary component 7.

[0023] The specific configuration and functions of the pressing component 6 and the auxiliary component 7 are described in detail below.

[0024] In this embodiment: the pressing component 6 includes a connecting ring 61, which is socketed with the driving end of the hydraulic cylinder 5. A threaded hole is provided on the surface of the connecting ring 61. The connecting ring 61 is located on the inner wall of the threaded hole and is threadedly connected with a fixing bolt 62. A hole is provided at the driving end of the hydraulic cylinder 5. The fixing bolt 62 is plugged into the inner wall of the hole. The lower surface of the connecting ring 61 is fixedly connected with a tripod 63. The lower surface of the tripod 63 is fixedly connected with a connecting column 64. The lower end of the connecting column 64 is fixedly connected with a positioning sleeve 65. The lower surface of the positioning sleeve 65 is fixedly connected with a pressure plate 66.

[0025] Specifically, a through hole 67 is opened on the surface of the pressing plate 66, and the diameter of the through hole 67 is adapted to the core of the molding die 3. By opening the through hole 67 on the surface of the pressing plate 66, the pressing plate 66 can be inserted into the molding die 3 and increase the extrusion effect on the material inside the molding die 3.

[0026] Specifically, there are three connecting columns 64 , which are arranged diagonally with respect to the tripod 63 , and the number of the positioning sleeves 65 matches that of the connecting columns 64 .

[0027] In this embodiment, the connecting column 64 installed below the tripod 63 can cooperate with the positioning sleeve 65 to connect the tripod 63 and the pressing plate 66 to achieve a linkage effect between the two.

[0028] Specifically, the pressing plate 66 is located directly above the shaping mold 3, and the outer diameter of the pressing plate 66 is adapted to the inner diameter of the shaping mold 3. The pressing plate 66 installed under the positioning sleeve 65 can be moved into the shaping mold 3 when the hydraulic cylinder 5 is working, and the material in the shaping mold 3 can be squeezed to achieve shaping of the material.

[0029] In this embodiment: the auxiliary component 7 includes a connecting frame 71, the connecting frame 71 is fixedly connected to the upper surface of the pressure plate 66, both ends of the connecting frame 71 are fixedly connected with a pull plate 72, the surface of the pull plate 72 is slidably connected with an L-shaped frame 73, the surface of the pull plate 72 is fixedly connected with a restraining slider 74, the restraining slider 74 is slidably connected to the inner wall of the L-shaped frame 73, the side surface of the L-shaped frame 73 is fixedly connected with a top plate 75, the upper surface of the top plate 75 is fixedly connected with a push rod 76, the upper surface of the push rod 76 is fixedly connected with a force-carrying plate 77, and the force-carrying plate 77 is located on the inner wall of the molding mold 3.

[0030] In this embodiment: the pulling plate 72 and the pressing plate 66 can be connected by a connecting frame 71 installed above the pressing plate 66, so that when the pressing plate 66 is pulled by the hydraulic cylinder 5, it can cooperate with the connecting frame 71 to pull the pulling plate 72 for displacement.

[0031] Specifically, there are two pull plates 72, and the two pull plates 72 are symmetrically arranged about the connecting frame 71. The number of L-shaped frames 73 matches the pull plates 72. By installing the L-shaped frames 73 on the surface of the pull plates 72, the top plate 75 can be pulled upward with the cooperation of the restraining slider 74, so that the top plate 75 can push the top rod 76 to lift the load-bearing plate 77.

[0032] Specifically, there are four push rods 76 , which are arranged in a circular array about the force-carrying plate 77 . The push rods 76 penetrate the upper surface of the base 2 , the push rods 76 penetrate the inner wall of the shaping mold 3 , and the force-carrying plate 77 is socketed with the surface of the mold core.

[0033] In this embodiment, by installing a force plate 77 inside the shaping mold 3, the workpiece in the shaping mold 3 can be ejected after the equipment completes the processing, so that the operator can extract the workpiece.

[0034] Working principle: When producing the grinding wheel, ensure that the pressing component 6 and the auxiliary component 7 are in a semi-expanded state, add the material used for processing into the shaping mold 3, turn on the switch of the hydraulic cylinder 5, energize the hydraulic cylinder 5 to cooperate with the connecting ring 61 to push the tripod 63 downward, the tripod 63 cooperates with the connecting column 64 and the positioning sleeve 65, and evenly distributes the pressure applied by the hydraulic cylinder 5 to the pressing plate 66. At the same time, the connecting column 64 pushes the pressing plate 66, and the pressing plate 66 is pushed into the shaping mold 3 and evenly squeezes the material in the shaping mold 3. The material is completely squeezed by the pressing plate 66. After the material is shaped and converted into a workpiece, the hydraulic cylinder 5 is controlled to reset, and the hydraulic cylinder 5 pulls the pressing assembly 6 out of the shaping mold 3. At the same time, the connecting frame 71 is lifted by the pressure plate 66 and pulls the pulling plate 72. When the pulling plate 72 and the restraining slider 74 move to the maximum spacing, the pulling plate 72 and the restraining slider 74 pull the L-shaped frame 73, and the L-shaped frame 73 pulls the top plate 75. The top plate 75 cooperates with the top rod 76 to lift the load plate 77. The load plate is forced to push the workpiece out of the shaping mold 3. When the workpiece is completely separated from the shaping mold 3, the workpiece can be removed from the load plate 77.

Claims

1. A grinding wheel pressing mold, comprising a support leg (1), a base (2) and a pressing assembly (6), characterized in that: The base (2) is fixedly connected to the upper surface of the support leg (1); a shaping mold (3) is bolted to the upper surface of the base (2); a bracket (4) is fixedly connected to the upper surface of the base (2); a hydraulic cylinder (5) is installed on the upper surface of the bracket (4); a driving end of the hydraulic cylinder (5) passes through the lower surface of the bracket (4); the pressing component (6) is arranged at the driving end of the hydraulic cylinder (5); the pressing component (6) comprises a connecting ring (61); the connecting ring (61) is sleeved with the driving end of the hydraulic cylinder (5); the connecting ring ( A threaded hole is provided on the surface of the connecting ring (61), the inner wall of the threaded hole is threadedly connected with a fixing bolt (62), a hole is provided on the driving end of the hydraulic cylinder (5), the fixing bolt (62) is plugged into the inner wall of the hole, the lower surface of the connecting ring (61) is fixedly connected with a tripod (63), the lower surface of the tripod (63) is fixedly connected with a connecting column (64), the lower end of the connecting column (64) is fixedly connected with a positioning sleeve (65), and the lower surface of the positioning sleeve (65) is fixedly connected with a pressure plate (66).

2. A grinding wheel pressing die according to claim 1, characterized in that: A through hole (67) is provided on the surface of the pressing plate (66), and the diameter of the through hole (67) is matched with the core of the shaping mold (3).

3. The grinding wheel pressing mold according to claim 1, characterized in that: The number of the connecting columns (64) is three, and the three connecting columns (64) are arranged diagonally with respect to the tripod (63). The number of the positioning sleeves (65) matches the number of the connecting columns (64).

4. The grinding wheel pressing mold according to claim 1, characterized in that: The pressing plate (66) is located directly above the shaping mold (3), and the outer diameter of the pressing plate (66) is matched with the inner diameter of the shaping mold (3).

5. A grinding wheel pressing die according to any one of claims 1 to 4, characterized in that: An auxiliary component (7) is provided on the upper surface of the pressing plate (66), and the auxiliary component (7) includes a connecting frame (71), the connecting frame (71) is fixedly connected to the upper surface of the pressing plate (66), both ends of the connecting frame (71) are fixedly connected to a pulling plate (72), the surface of the pulling plate (72) is slidably connected to an L-shaped frame (73), the surface of the pulling plate (72) is fixedly connected to a restraining slider (74), the restraining slider (74) is slidably connected to the inner wall of the L-shaped frame (73), the side surface of the L-shaped frame (73) is fixedly connected to a top plate (75), the upper surface of the top plate (75) is fixedly connected to a push rod (76), the upper surface of the push rod (76) is fixedly connected to a force plate (77), and the force plate (77) is located on the inner wall of the molding mold (3).

6. A grinding wheel pressing die according to claim 5, characterized in that: The number of the pull plates (72) is two, and the two pull plates (72) are arranged symmetrically with respect to the connecting frame (71). The number of the L-shaped frames (73) matches the number of the pull plates (72).

7. The grinding wheel pressing mold according to claim 5, characterized in that: The number of the push rods (76) is four, and the four push rods (76) are arranged in a circular array about the force-carrying disk (77). The push rods (76) penetrate the upper surface of the base (2), the push rods (76) penetrate the inner wall of the shaping mold (3), and the force-carrying disk (77) is sleeved with the surface of the mold core.

Images