Floor abrasive disc cold press forming die and floor abrasive disc

Abstract

The utility model provides a terrace abrasive disc cold press forming die and a terrace abrasive disc, which belong to the technical field of terrace abrasive disc processing and comprise an upper die, a fixed die and a lower die. The upper die is used for being connected with a base plate. The fixed die is located below the upper die, and four discharging holes are formed in the fixed die. The lower die comprises a connecting piece and four pushing pieces fixedly connected with the connecting piece, the connecting piece is located below the fixed die, the four pushing pieces correspond to the four discharging holes one to one, and the pushing pieces are arranged in the corresponding discharging holes in a sliding and penetrating mode. When the upper die moves downwards, the base plate connected with the upper die can be attached to the upper surface of the fixed die and cover the four discharging holes. According to the terrace abrasive disc cold press forming mold and the terrace abrasive disc, four tool bits do not need to be manufactured and are welded to the base body one by one, and therefore the problem that an existing terrace abrasive disc is complex to machine is solved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to terrace grinding disc processing technical field, more specifically, relate to a terrace grinding disc cold pressure forming die and terrace grinding disc. BACKGROUND

[0002] Terrace grinding disc is used for grinding cement terrace etc., and the terrace grinding disc comprises a base body and four tool bits, the base body comprises a base body plate in the shape of a round plate, the four tool bits are fixed on the base body plate, and a plurality of mounting holes are arranged on the base body plate. When the applicant processes the terrace grinding disc, the base body is purchased first, then the four tool bits are made, and the four tool bits are welded on the base body plate one by one, which is relatively complicated. CONTENT

[0003] The utility model discloses a terrace grinding disc cold pressure forming die and terrace grinding disc, and aims to solve the problem that the existing terrace grinding disc processing is relatively complicated.

[0004] In the first aspect, the utility model discloses a terrace grinding disc cold pressure forming die, which comprises an upper die, a fixed die and a lower die. The upper die is used to be connected with the base body plate, so that the base body plate is in a horizontal state. The fixed die is located below the upper die, and four vertically arranged feeding holes are arranged on the fixed die. The lower die comprises a connecting piece and four pushing pieces fixedly connected with the connecting piece, the connecting piece is located below the fixed die, the four pushing pieces correspond to the four feeding holes one by one, and the pushing pieces slide through the corresponding feeding holes. When the upper die moves downward, the base body plate connected with the upper die can be attached to the upper surface of the fixed die and cover the four feeding holes.

[0005] In the embodiment of the application, diamond powder is put into the four feeding holes, so that the base body plate is connected with the upper die, and the pushing pieces support the diamond powder put into the feeding holes. The upper die moves downward, so that the base body plate is attached to the upper surface of the fixed die and covers the four feeding holes, and the lower die moves upward, so that the pushing pieces and the base body plate cooperate to extrude the diamond powder in the feeding holes, thereby forming the four tool bits and fixing the tool bits and the base body plate together, and then the cold pressure forming of the terrace grinding disc is completed. In this way, it is not necessary to make the four tool bits and weld the four tool bits on the base body one by one, thereby avoiding the problem that the existing terrace grinding disc processing is relatively complicated.

[0006] In combination with the first aspect, in a possible implementation manner, a first accommodating groove for accommodating the base body plate is arranged on the lower surface of the upper die.

[0007] In combination with the first aspect, in a possible implementation manner, a magnet is embedded in the bottom wall of the first accommodating groove to attract the base body plate.

[0008] With the first aspect, in a possible implementation manner, the upper surface of the upper die is provided with a second accommodating groove, and the floor grinding disc cold-press forming die further comprises positioning shafts. The positioning shafts are vertically arranged and penetrate into the upper die, the top of each positioning shaft is provided with a limiting portion protruding radially outward, the limiting portion is located in the second accommodating groove, and the positioning shafts are used to penetrate into the mounting holes on the base plate.

[0009] With the first aspect, in a possible implementation manner, the pushing piece is detachably connected with the connecting piece.

[0010] With the first aspect, in a possible implementation manner, the bottom surface of the pushing piece is provided with a threaded hole, a connecting bolt is threadedly connected in the threaded hole, and the screw rod of the connecting bolt penetrates into the connecting piece.

[0011] With the first aspect, in a possible implementation manner, the upper surface of the connecting piece is provided with four positioning grooves, and the four positioning grooves correspond to the four pushing pieces one by one, and the pushing pieces penetrate into the corresponding positioning grooves.

[0012] The second aspect, the utility model embodiment further provides a floor grinding disc, including base plate and four tool bits, using above-mentioned floor grinding disc cold-press forming die processes, the base column is penetrated in each tool bit, and the base column is fixed on the base plate.

[0013] In the embodiment of the application, the base column can reduce the risk of the tool bit falling off the base plate.

[0014] With the second aspect, in a possible implementation manner, the base column is provided with an external thread.

[0015] With the second aspect, in a possible implementation manner, the number of the base columns penetrated in each tool bit is two. DETAILED DESCRIPTION

[0016] In order to more clearly illustrate the technical scheme in the embodiments of the utility model, the drawings needed to be used in the embodiments or prior art description will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0017] Figure 1 The floor grinding disc cold-press forming die provided by the embodiments of the utility model is shown in the structure schematic diagram when in use.

[0018] Figure 2This is a cross-sectional view of the floor grinding disc cold pressing mold provided in this embodiment of the utility model during use.

[0019] Figure 3 A schematic diagram of the structure of the cold pressing mold for floor grinding discs provided in this embodiment of the present invention, showing the connection of the upper mold, base plate, base column and positioning shaft.

[0020] Figure 4 A schematic diagram of the structure of the cold pressing mold for floor grinding discs provided in this embodiment of the utility model, showing the connection of the upper mold, positioning shaft, and magnet.

[0021] Figure 5 This is a schematic diagram of the structure of the fixed mold in the cold pressing mold for floor grinding discs provided in this embodiment of the utility model;

[0022] Figure 6 This is a schematic diagram of the lower mold in the cold pressing mold for floor grinding discs provided in this embodiment of the utility model;

[0023] Figure 7 This is a schematic diagram of the connecting component in the cold pressing mold for floor grinding discs provided in an embodiment of the present utility model;

[0024] Figure 8 This is a schematic diagram of the pusher component in the cold pressing mold for floor grinding discs provided in this embodiment of the utility model;

[0025] Figure 9 This is a schematic diagram of the positioning shaft in the cold pressing mold for floor grinding discs provided in this embodiment of the utility model;

[0026] Figure 10 This is a schematic diagram of the structure of a floor grinding disc in the prior art.

[0027] In the diagram: 1. Upper mold; 11. First receiving groove; 12. Second receiving groove; 13. Receiving hole; 2. Fixed mold; 21. Discharge hole; 3. Lower mold; 31. Connecting piece; 311. Positioning groove; 312. Third receiving groove; 32. Pushing piece; 321. Threaded hole; 4. Magnet; 5. Positioning shaft; 51. Limiting part; 61. Base plate; 611. Mounting hole; 62. Base column; 63. Cutting head; 7. Connecting bolt. Detailed Implementation

[0028] To make the technical problem to be solved, the technical solution, and the beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0029] It should be further noted that the accompanying drawings and embodiments of this utility model mainly describe the concept of this utility model. Based on this concept, some specific forms and arrangements of connection relationships, positional relationships, etc., may not be fully described. However, under the premise that those skilled in the art understand the concept of this utility model, they can implement the above-mentioned specific forms and arrangements in a well-known manner.

[0030] When a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0031] The terms “length,” “width,” “up,” “down,” “front,” “back,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0032] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "multiple" means two or more, and "several" means one or more, unless otherwise explicitly specified.

[0033] Please refer to the following: Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 and Figure 10The present invention provides a description of the cold-press forming mold for floor grinding discs. The cold-press forming mold for floor grinding discs includes an upper mold 1, a fixed mold 2, and a lower mold 3. The upper mold 1 is used to connect with a base plate 61 to make the base plate 61 horizontal. The fixed mold 2 is located below the upper mold 1 and has four vertically arranged feeding holes 21. The lower mold 3 includes a connecting member 31 and four pushers 32 fixedly connected to the connecting member 31. The connecting member 31 is located below the fixed mold 2, and the four pushers 32 correspond one-to-one with the four feeding holes 21, slidingly passing through the corresponding feeding holes 21. When the upper mold 1 moves downward, the base plate 61 connected to the upper mold 1 can fit against the upper surface of the fixed mold 2 and cover the four feeding holes 21.

[0034] Compared with the prior art, the cold pressing mold for floor grinding discs provided by this utility model places diamond powder into each of the four feeding holes 21, connecting the base plate 61 to the upper mold 1. The pusher 32 supports the diamond powder placed in the feeding holes 21. The upper mold 1 moves downward, so that the base plate 61 fits against the upper surface of the fixed mold 2 and covers the four feeding holes 21. The lower mold 3 moves upward, so that the pusher 32 and the base plate 61 cooperate to compress the diamond powder in the feeding holes 21, thereby forming four cutting heads 63, which are fixed together with the base plate 61, thus completing the cold pressing of the floor grinding disc. This eliminates the need to manufacture four cutting heads 63 and weld them one by one to the base, thus avoiding the cumbersome processing of existing floor grinding discs.

[0035] In some embodiments, the mold 1 for the above-mentioned features can be adopted as follows: Figures 2 to 4 The structure shown. See also Figures 2 to 4 The lower surface of the upper mold 1 is provided with a first receiving groove 11 for accommodating the base plate 61. When the horizontal base plate 61 is placed into the first receiving groove 11, the first receiving groove 11 limits the base plate 61 so that when the base plate 61 is attached to the upper surface of the fixed mold 2, it can cover the four feeding holes 21.

[0036] In some embodiments, see Figure 4 A magnet 4 is embedded and fixed in the bottom wall of the first receiving groove 11 to attract the base plate 61, thereby connecting the base plate 61 to the upper mold 1. In this embodiment, after the floor grinding disc is formed, the upper mold 1 moves upward, and the attraction of the magnet 4 to the base plate 61 can no longer move the formed floor grinding disc upward, thus causing the base plate 61 to exit from the first receiving groove 11. The upward movement of the lower mold 3 allows the pusher 32 to push the cutter head 63 out of the discharge hole 21.

[0037] In some embodiments, see Figure 2 , Figure 3 ,Figure 4 and Figure 9 The upper surface of the upper mold 1 is provided with a second receiving groove 12. The cold pressing mold for floor grinding discs also includes positioning shafts 5. There are several positioning shafts 5, which are vertically arranged and pass through the upper mold 1. The top of the positioning shaft 5 has a limiting part 51 that protrudes outward along the radial direction of the positioning shaft 5. The limiting part 51 is located in the second receiving groove 12. The positioning shaft 5 is used to pass through the mounting hole 611 on the base plate 61. By positioning the base plate 61 with the positioning shaft 5, the formed cutting head 63 can be fixed in the preset area on the base plate 61.

[0038] In this embodiment, there can be two positioning shafts 5, which are respectively inserted into two mounting holes 611, thus enabling more precise positioning of the base plate 61. The limiting part 51 can prevent the positioning shafts 5 from sliding downward and disengaging from the upper mold 1.

[0039] In the prior art, a type of floor grinding disc substrate also includes a fixing rod fixed on the substrate plate 61. In order to expand the scope of application of this application, a receiving hole 13 can be opened on the bottom wall of the first receiving groove 11. When the substrate plate 61 is inserted into the first receiving groove 11, the fixing rod can be inserted into the receiving hole 13.

[0040] In the prior art, a powder press has two hydraulic cylinders arranged vertically opposite each other and a worktable located between the two hydraulic cylinders. In this application, the upper mold 1 can be fixed to the piston rod of the upper hydraulic cylinder, the lower mold 3 can be fixed to the piston rod of the lower hydraulic cylinder, and the fixed mold 2 is fixed to the worktable. The piston rod of the upper hydraulic cylinder is used to drive the upper mold 1 to move up and down, the piston rod of the lower hydraulic cylinder is used to drive the lower mold 3 to move up and down, and the fixed mold 2 is in a fixed state. Of course, this application can also be applied with the help of other existing technologies or equipment.

[0041] In some embodiments, the pusher 32 is detachably connected to the connector 31. Thus, when the pusher 32 is damaged, only the pusher 32 needs to be replaced.

[0042] In some embodiments, see Figure 2 and Figure 8 The bottom surface of the pusher 32 is provided with a threaded hole 321, and a connecting bolt 7 is threaded into the threaded hole 321. The thread of the connecting bolt 7 passes through the connecting member 31. The pusher 32 and the connecting member 31 are detachably connected together by the threaded connection between the connecting bolt 7 and the threaded hole 321. In this embodiment, the bottom surface of the connecting member 31 may be provided with a third receiving groove 312 for accommodating the head of the connecting bolt 7.

[0043] In some embodiments, see Figure 6 and Figure 7The upper surface of the connector 31 is provided with four positioning grooves 311, which correspond one-to-one with four pushers 32. The pushers 32 pass through the corresponding positioning grooves 311. When the connecting bolt 7 is threaded into the threaded hole 321 by driving the connecting bolt 7 to rotate, or when the threaded connection between the connecting bolt 7 and the threaded hole 321 is broken, the positioning grooves 311 can restrict the pushers 32 from rotating with the connecting bolt 7.

[0044] Based on the same inventive concept, this application also provides a floor grinding disc, see [link to relevant documentation]. Figure 2 , Figure 3 and Figure 10 The system includes a base plate 61 and four cutting heads 63, which are processed using the aforementioned floor grinding disc cold pressing mold. Each cutting head 63 has a base column 62 inserted inside, and the base column 62 is fixed to the base plate 61. When the floor grinding disc is being processed, as the lower mold 3 moves downward, causing the base plate 61 to fit against the upper surface of the fixed mold 2, a base column 62 is inserted into each discharge hole 21. Thus, during the cold pressing of the floor grinding disc, each cutting head 63 has a base column 62 inserted inside. When the floor grinding disc is in use, the cutting head 63 is subjected to shearing force, and the base column 62 reduces the risk of the cutting head 63 falling off the base plate 61. In this embodiment, the base plate 61 and the base column 62 can be used as a whole as the base.

[0045] In some embodiments, the base column 62 is provided with external threads. Thus, when the ground grinding disc is cold-pressed, the cutting head 63 will be squeezed into the external threads, thereby forming a concave-convex fit with the external threads, thus firmly connecting the cutting head 63 to the base plate 61.

[0046] In some embodiments, see Figure 2 Each cutter head 63 contains two base pillars 62. This further ensures a secure connection between the cutter head 63 and the base plate 61.

[0047] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A cold-pressing mold for floor grinding discs, characterized in that, include: An upper mold is used to connect with the base plate so that the base plate is in a horizontal state; A fixed mold is located below the upper mold, and the fixed mold has four vertically arranged feeding holes; as well as The lower mold includes a connector and four pushers fixedly connected to the connector. The connector is located below the fixed mold. The four pushers correspond one-to-one with the four discharge holes. The pushers slide through the corresponding discharge holes. When the upper mold moves downward, the base plate connected to the upper mold can fit against the upper surface of the fixed mold and cover the four feeding holes.

2. The cold pressing mold for floor grinding discs as described in claim 1, characterized in that, The lower surface of the upper mold is provided with a first receiving groove for accommodating the base plate.

3. The cold pressing mold for floor grinding discs as described in claim 2, characterized in that, A magnet is embedded and fixed in the bottom wall of the first receiving groove to attract the base plate.

4. The cold pressing mold for floor grinding discs as described in claim 2, characterized in that, The upper surface of the upper mold is provided with a second receiving groove, and the cold pressing mold for floor grinding discs further includes: There are several positioning shafts, which are vertically arranged and pass through the upper mold. The top of the positioning shaft has a limiting part that protrudes outward along the radial direction of the positioning shaft. The limiting part is located in the second receiving groove. The positioning shaft is used to pass through the mounting hole on the base plate.

5. The cold pressing mold for floor grinding discs as described in claim 1, characterized in that, The pusher and the connector are detachably connected.

6. The cold pressing mold for floor grinding discs as described in claim 5, characterized in that, The bottom surface of the pusher is provided with a threaded hole, and a connecting bolt is threaded into the threaded hole. The bolt of the connecting bolt passes through the connecting member.

7. The cold pressing mold for floor grinding discs as described in claim 6, characterized in that, The upper surface of the connector is provided with four positioning grooves, each of which corresponds to one of the four pushers, and the pushers are inserted into the corresponding positioning grooves.

8. A floor grinding disc, comprising a base plate and four cutting heads, characterized in that, The floor grinding disc is processed using the cold pressing mold as described in any one of claims 1-7, wherein each of the cutting heads is provided with a base column, and the base column is fixed to the base plate.

9. The floor grinding disc as described in claim 8, characterized in that, The base column is provided with external threads.

10. The floor grinding disc as described in claim 9, characterized in that, The number of base columns inserted into each of the cutting heads is two.

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