Tool grinding machine turntable for profile extrusion die

Abstract

The utility model discloses a tool grinder turntable for a profile extrusion die, which comprises a chassis, a turntable and a magnetic chuck which are sequentially arranged from bottom to top, and the chassis is fixedly mounted on a tool grinder; an annular lower rolling shaft groove is formed in the upper surface of the chassis, an annular upper rolling shaft groove is formed in the lower surface of the turntable, and a plurality of rolling shafts are clamped between the upper rolling shaft groove and the lower rolling shaft groove; a plurality of lower positioning holes are formed in the edge position of the chassis, a plurality of upper positioning holes are formed in the edge position of the turntable, and guide sleeves are embedded in the upper positioning holes and the lower positioning holes; a guide column penetrates into the guide sleeve of at least one upper positioning hole in a matched mode, and the lower end of the guide column penetrates into the guide sleeve of the corresponding lower positioning hole in a matched mode. According to the scheme, in the process of machining one mold, only one-time alignment and positioning are needed, accurate positioning can be conducted by rotating the rotary table and matching the upper positioning hole and the lower positioning hole in the subsequent machining process of other side faces, and operation is more convenient and efficient.

Description

Technical Field

[0001] The utility model belongs to the technical field of extrusion die processing equipment, and in particular relates to a tool grinder turntable for a profile extrusion die. Background Art

[0002] At present, in the process of processing profile extrusion dies, a grinder is needed to grind the core working belt of a punch (generally alloy steel). The process in the existing conventional scheme is as follows: the extrusion die is aligned and fixed to the grinder by, for example, a clamp, and the working belt of one side is ground. To continue to repair other sides, the extrusion die needs to be removed, rotated to the side to be processed, and then re-aligned and fixed. Therefore, it is time-consuming and labor-intensive, and the processing efficiency is low. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a tool grinder turntable for a profile extrusion die, which solves the problem that the processing process in the existing solution requires multiple positioning and clamping, and achieves the technical effect of improving processing efficiency. It is particularly suitable for common aluminum profile extrusion dies with square cavities.

[0004] According to the technical scheme of the utility model, the utility model provides a tool grinder turntable for a profile extrusion die, comprising a chassis, a turntable and a magnetic suction cup arranged in sequence from bottom to top, the chassis is fixedly installed on the tool grinder; an annular lower roller groove is provided on the upper surface of the chassis, an annular upper roller groove is provided on the lower surface of the turntable, and a plurality of rollers are sandwiched between the upper roller groove and the lower roller groove; a plurality of lower positioning holes are provided at the edge of the chassis, a plurality of upper positioning holes are provided at the edge of the turntable, guide sleeves are embedded in the upper positioning holes and the lower positioning holes; a guide column is matchedly inserted into the guide sleeve of at least one upper positioning hole, and the lower end of the guide column is matchedly inserted into the guide sleeve of the corresponding lower positioning hole.

[0005] Furthermore, a lower shaft hole is opened at the middle position of the chassis, and an upper shaft hole is opened at the middle position of the turntable; a shaft is also included, and the upper and lower ends of the shaft are respectively connected to the upper shaft hole and the lower shaft hole through bearings; the shaft is located at the center position of the ring of the upper roller groove and the lower roller groove.

[0006] Furthermore, there are at least four lower positioning holes, all of which are located on a positioning hole circle, and the positioning hole circle is concentric with the rings of the upper roller groove and the lower roller groove; the lines connecting at least four lower positioning holes and the centers of the positioning hole circle form a cross.

[0007] Further, the lower positioning hole is located outside the annular shape of the lower roller groove.

[0008] Furthermore, there are at least two guide pillars, and at least two guide pillars are located at two opposite sides.

[0009] Furthermore, the inner side walls of the upper positioning hole and the lower positioning hole are both provided with exhaust grooves.

[0010] Furthermore, the rollers are balls, and the balls are distributed in the ring shape of the upper roller groove and the lower roller groove.

[0011] Furthermore, the workpiece processed by the tool grinder is a punch of an extrusion die, the side of the punch is cylindrical, the bottom of the punch fits with the magnetic chuck, and the top of the punch has a protruding mold core.

[0012] Furthermore, the annular dimensions of the upper roller groove and the lower roller groove are not less than the dimensions of the punch.

[0013] Furthermore, the working end of the tool grinder is a grinding wheel; the plane of the grinding wheel used for grinding is perpendicular to the horizontal plane, and the plane of the grinding wheel used for grinding is parallel to the line connecting at least one lower positioning hole and the center of the lower roller groove ring; the shape of the mold core is rectangular or other polygonal.

[0014] Compared with the prior art, the beneficial technical effects of the utility model are as follows:

[0015] 1. The tool grinder turntable for profile extrusion dies of the utility model only needs to be aligned and positioned once during the processing of an extrusion die. When processing other sides subsequently, accurate positioning can be performed by rotating the turntable and cooperating with the upper and lower positioning holes. The use of guide pins and guide sleeves further improves the accuracy. It is easy to operate manually and is convenient to use with a manual surface grinder. Therefore, the processing efficiency can be significantly improved.

[0016] 2. The tool grinder turntable for the profile extrusion die of the utility model adopts a magnetic chuck, more specifically a manual permanent magnetic chuck, which is more convenient for fixing and releasing the extrusion die made of die steel, eliminating the traditional clamps and making the operation more convenient and efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional structural schematic diagram according to an embodiment of the utility model.

[0018] Figure 2 yes Figure 1 A schematic diagram of the structure of the base plate in the illustrated embodiment.

[0019] Figure 3 yes Figure 1 A schematic structural diagram of the bottom surface of the turntable in the illustrated embodiment.

[0020] Figure 4 yes Figure 1 Schematic diagram of the side structure.

[0021] Figure 5 yes Figure 1 Schematic diagram of the top view structure.

[0022] Description of reference numerals in the accompanying drawings:

[0023] 1. Chassis; 2. Turntable; 3. Magnetic suction cup; 4. Lower roller slot; 5. Upper roller slot; 6. Roller; 7. Lower positioning hole; 8. Upper positioning hole; 9. Guide column; 10. Lower shaft hole; 11. Upper shaft hole; 12. Exhaust slot; A. Punch; A1. Mold core. DETAILED DESCRIPTION

[0024] The utility model provides a tool grinder turntable for a profile extrusion die, which solves the problem that the processing process in the existing solution requires multiple positioning and clamping, achieves the technical effect of improving processing efficiency, and is particularly suitable for common aluminum profile extrusion dies with square cavities.

[0025] See also Figures 1 to 5 The utility model discloses a tool grinder turntable for a profile extrusion die, comprising a chassis 1, a turntable 2 and a magnetic chuck 3 arranged in sequence from bottom to top. The chassis 1 is fixedly mounted on the tool grinder, for example, by Figure 2 The four waist-shaped holes shown in the figure are fixed on the workbench of the grinder by bolts. The upper surface of the chassis 1 is provided with an annular lower roller groove 4, and the lower surface of the turntable 2 is provided with an annular upper roller groove 5. A plurality of rollers 6 are matched and sandwiched between the upper roller groove 5 and the lower roller groove 4, so that the turntable 2 can rotate on the chassis 1 and can be stably supported after the extrusion mold is placed above the device. A plurality of lower positioning holes 7 ( Figure 2 There are eight upper positioning holes 8 ( Figure 3 At least one upper positioning hole 8 and all lower positioning holes 7 are embedded with guide sleeves (not shown in the figure). A guide post 9 is matched and inserted into the guide sleeve of at least one upper positioning hole 8, and the lower end of the guide post 9 is matched and inserted into the guide sleeve of the corresponding lower positioning hole 7.

[0026] Preferably, a lower shaft hole 10 is provided at the middle position of the chassis 1, and an upper shaft hole 11 is provided at the middle position of the turntable 2. A cylindrical shaft (not shown in the figure) is also included, and the upper and lower ends of the shaft are connected to the upper shaft hole 11 and the lower shaft hole 10 through bearings respectively; that is, the upper shaft hole 11 and the lower shaft hole 10 are both embedded with bearings, and the upper and lower ends of the shaft are inserted and fixed in the corresponding bearing inner rings, so that the chassis 1 and the turntable 2 form a rotational connection. The shaft is located at the center of the ring of the upper roller groove 5 and the lower roller groove 4. In this scheme, the rotation and the positioning of the center point during the rotation are mainly achieved by the shaft, and the upper and lower roller grooves and the roller 6 mainly play a supporting role.

[0027] The roller 6 is preferably a ball, and the upper roller groove 5 and the lower roller groove 4 are complete and continuous circular grooves. The balls are distributed in the rings of the upper roller groove 5 and the lower roller groove 4, thereby providing a better stable support effect, and the balls can roll and move in the grooves, and are not easy to get stuck. In other embodiments, the roller 6 can be cylindrical, conical, etc.; and the upper roller groove 5 and the lower roller groove 4 can be non-continuous grooves, and each roller 6 rotates only in a corresponding groove.

[0028] There are preferably at least four lower positioning holes 7, and all of the lower positioning holes 7 are located on the same circumference (referred to as "positioning hole circumference" for ease of description), and the positioning hole circumference is concentric with the annular shape of the upper roller groove 5 and the lower roller groove 4. The line connecting the centers of the at least four lower positioning holes 7 and the positioning hole circumference forms a vertical cross.

[0029] The lower positioning hole 7 is preferably located on the outer side of the ring shape of the lower roller groove 4. Of course, matchingly, the upper positioning hole 8 is located on the outer side of the upper roller groove 5. In other words, the circumference of the positioning holes is located on the outer side of the ring shapes of the upper roller groove 5 and the lower roller groove 4. Thus, the positioning holes are as far away from the pivot point as possible, which can provide more precise angular positioning.

[0030] There are preferably at least two guide posts 9, and at least two guide posts 9 are located at opposite sides, for example Figure 1 If only one guide post 9 is provided, accurate and stable positioning may not be ensured, and more guide posts 9 will increase the number of operation steps, so it is appropriate to provide two guide posts 9.

[0031] See also Figure 2 Preferably, the inner side walls of the upper positioning hole 8 and the lower positioning hole 7 are provided with exhaust grooves 12, and the exhaust grooves 12 are through (through from top to bottom) along the length direction of the upper and lower positioning holes and the guide sleeve, which plays a role in exhaust and facilitates the installation of the guide sleeve.

[0032] The guide sleeve is cylindrical, and the inner side of the guide sleeve matches the outer side of the guide post 9. One end of the column of the guide post 9 (such as Figure 1 , Figure 4The upper end of the guide pin 9 has a shoulder, and the body of the guide pin 9 has a plurality of annular oil grooves, which facilitates the matching and plugging process between the guide pin 9 and the guide sleeve. This scheme adopts the guide pin and guide sleeve scheme, which can achieve high-precision positioning and meet the needs of high-quality mold processing.

[0033] The magnetic chuck 3 is, for example, a manual permanent magnetic chuck, the upper surface of which is used to fit the extrusion die, and the lower surface of which is fixedly mounted on the turntable 2; Figure 3 The two rows of eight smaller circular holes not marked are the bolt mounting holes of the magnetic chuck 3. This solution is aimed at the extrusion die which is usually made of alloy steel, and adopts magnetic suction to fix and release, eliminating the traditional clamps, and the operation is more convenient and efficient.

[0034] More specifically, the tool grinder is a manual surface grinder, and the workpiece processed by the tool grinder is the punch A of the extrusion die, the side of the punch A is cylindrical, the bottom of the punch A is flat and fits with the magnetic chuck 3, and the top of the punch A has a protruding mold core A1. The annular size of the upper roller groove 5 and the lower roller groove 4 is preferably not less than the size of the punch A, so that the roller 6 can play a stable supporting role and avoid the turntable 2 from being uneven after being stressed or rotated.

[0035] The working end of the tool grinder is a grinding wheel. The plane of the grinding wheel used for grinding is perpendicular to the horizontal plane, and the plane of the grinding wheel used for grinding is parallel to the line connecting at least one lower positioning hole 7 and the center of the lower roller groove 4. Figure 5 In the top view shown, the grinding wheel is located on the left side of the mold core A1, and the projection of the grinding wheel is a vertical strip; the line connecting the upper and lower positioning holes in the figure passes through the center of the roller groove ring and is vertical. Please also refer to Figure 2 The chassis 1 also has positioning holes on the left and right sides (in Figure 5 After the turntable 2 rotates 90°, the two upper positioning holes 8 equipped with guide pillars 9 will be located on the left and right sides, and then positioned with the corresponding lower positioning holes 8, so as to achieve precise rotation of 90°.

[0036] During the work process, Figure 5For example, in the initial state, the guide column 9 has been installed and the magnetic suction cup 3 is closed (no magnetic adsorption effect), and the punch A to be processed is placed in a position roughly in the center of the magnetic suction cup 3, and the punch A is adjusted and positioned by a dial indicator in a conventional manner so that one side of the core A1 is parallel to the grinding wheel, and then the switch of the magnetic suction cup 3 is operated to generate a magnetic force to firmly adsorb the steel punch A, and then grinding processing can be carried out, such as repairing the working belt, so that the wall thickness of the corresponding position of the profile produced by the mold can be adjusted; after processing this side, it is only necessary to pull up the guide column 9, rotate it a certain angle so that the side to be processed next is parallel to the grinding wheel, and then insert the guide column 9; because the rotation angle is limited by the upper and lower positioning holes, and the angle is adapted to the situation of the core A1, the angle accuracy can be guaranteed after the guide column 9 is inserted, and there is no need to align it again, and the grinding wheel can be moved for processing.

[0037] As a supplementary explanation, the core A1 in the extrusion die is used to form the cavity of the profile. The cavity of the more common aluminum profile is generally rectangular, and the shape of the corresponding core A1 is also generally rectangular, such as Figure 1 , Figure 5 As shown, the above-mentioned four lower positioning holes 8 distributed in a cross shape can meet most usage requirements, and the angle only needs to be adjusted by an integer multiple of 90°; uncommonly, the shape of the mold core A1 is generally other polygons, and the angle between the two sides to be processed is not an integer multiple of 90°. In this case, other positioning holes are needed, such as Figure 2 There are eight lower positioning holes 7 distributed at 45° intervals on the circumference of the positioning holes, so the turntable 2 can accurately rotate to an angle that is an integer multiple of 45°; it is conceivable that other rotation positioning angles can be achieved by setting individual or newly added lower positioning holes 7 to other angular intervals.

[0038] In summary, in the existing conventional solutions, the grinder usually does not have its own turntable, let alone a turntable for the grinding process of profile extrusion dies, so it is necessary to use cumbersome traditional positioning methods, which are inefficient. The tool grinder turntable for profile extrusion dies in this solution only needs to be aligned and positioned once during the processing of an extrusion die. When processing other sides later, the turntable can be rotated and the upper and lower positioning holes can be used to accurately position it. The use of guide pins and guide sleeves further improves the accuracy. It is easy to operate manually and can be used with a manual surface grinder. Therefore, the processing efficiency can be significantly improved. The use of a magnetic suction cup makes it easier to fix and release the extrusion die made of die steel, eliminating the traditional clamps and making the operation more convenient and efficient.

Claims

1. A tool grinder turntable for a profile extrusion die, characterized in that: The invention comprises a chassis (1), a rotating disk (2) and a magnetic suction disk (3) which are arranged in sequence from bottom to top, wherein the chassis (1) is fixedly mounted on a tool grinder; an annular lower roller groove (4) is provided on the upper surface of the chassis (1), an annular upper roller groove (5) is provided on the lower surface of the rotating disk (2), and a plurality of rollers (6) are sandwiched between the upper roller groove (5) and the lower roller groove (4); a plurality of lower positioning holes (7) are provided at the edge of the chassis (1), and a plurality of upper positioning holes (8) are provided at the edge of the rotating disk (2), and guide sleeves are embedded in the upper positioning holes (8) and the lower positioning holes (7); a guide column (9) is matched and inserted into the guide sleeve of at least one of the upper positioning holes (8), and the lower end of the guide column (9) is matched and inserted into the guide sleeve of the corresponding lower positioning hole (7).

2. The tool grinder turntable for profile extrusion die according to claim 1, characterized in that: A lower shaft hole (10) is provided at the middle of the chassis (1), and an upper shaft hole (11) is provided at the middle of the turntable (2); a shaft is also provided, and the upper and lower ends of the shaft are respectively connected to the upper shaft hole (11) and the lower shaft hole (10) through bearings; the shaft is located at the center of the ring of the upper roller groove (5) and the lower roller groove (4).

3. The tool grinder turntable for profile extrusion die according to claim 1, characterized in that: There are at least four lower positioning holes (7), all of which are located on a positioning hole circumference, and the positioning hole circumference is concentric with the annular shapes of the upper roller groove (5) and the lower roller groove (4); and the lines connecting at least four lower positioning holes (7) and the centers of the positioning hole circumference form a cross.

4. The tool grinder turntable for a profile extrusion die according to claim 3, characterized in that: The lower positioning hole (7) is located outside the annular shape of the lower roller groove (4).

5. The tool grinder turntable for profile extrusion die according to claim 1, characterized in that: There are at least two guide pillars (9), and at least two guide pillars (9) are located at two opposite sides.

6. The tool grinder turntable for profile extrusion die according to claim 1, characterized in that: The inner side walls of the upper positioning hole (8) and the lower positioning hole (7) are both provided with exhaust grooves (12).

7. The tool grinder turntable for profile extrusion die according to claim 1, characterized in that: The rollers (6) are balls, and the balls are distributed in the ring shape of the upper roller groove (5) and the lower roller groove (4).

8. The tool grinder turntable for a profile extrusion die according to any one of claims 1 to 7, characterized in that: The workpiece processed by the tool grinder is a punch (A) of an extrusion die, the side surface of the punch (A) is cylindrical, the bottom of the punch (A) is in contact with the magnetic chuck (3), and the top of the punch (A) has a protruding mold core (A1).

9. The tool grinder turntable for a profile extrusion die according to claim 8, characterized in that: The annular dimensions of the upper roller groove (5) and the lower roller groove (4) are not less than the dimensions of the punch (A).

10. The tool grinder turntable for a profile extrusion die according to claim 8, characterized in that: The working end of the tool grinder is a grinding wheel; the plane of the grinding wheel used for grinding is perpendicular to the horizontal plane, and the plane of the grinding wheel used for grinding is parallel to the line connecting at least one of the lower positioning holes (7) and the center of the annular circle of the lower roller groove (4); the mold core (A1) is rectangular in shape.

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