Precise inner hole grinding device

Abstract

The utility model discloses a precise grinding device for an inner hole, which is characterized in that a knob is manually operated to drive a bidirectional lead screw to rotate, so that two mounting plates are close to each other, and a grinding rod is moved and attached to the wall of the inner hole through a mounting mechanism under the condition that the mounting plates are close to each other; the grinding motor started after abutting against the side wall can drive the grinding rod to rotate at a high speed to grind the interior of the inner hole wall machine box, corresponding adjustment is conducted according to different hole diameters, the grinding process is more stable, and the grinding effect is improved.

Description

Technical Field

[0001] This utility model relates to the field of mold hole grinding technology, specifically a precision grinding device for internal holes. Background Technology

[0002] Molds are commonly used processing tools in the machinery industry, used for forging, injection molding and other operations to obtain the desired products. The splicing between the upper and lower molds and the product processing requirements all require the setting of various holes on the mold. Since the assembly of precision molds also requires precise assembly, errors in assembly will directly affect the accuracy of subsequent products.

[0003] To ensure accurate assembly, the holes in precision molds are usually ground internally. The grinding method is mostly done manually by inserting a grinding ball or grinding rod into the inner hole to grind the inner wall of the hole. This method is inefficient and the grinding process is not stable. Utility Model Content

[0004] In view of the problems existing in the prior art, this utility model discloses an internal precision grinding device. The technical solution adopted includes a fixed plate, a base plate, a connecting shaft, a bidirectional lead screw, a knob, a slot, a top fixed handle, a through slot, a mounting plate, a mounting mechanism, a grinding rod, a grinding motor, and auxiliary components. The fixed plate and the base plate are connected by a connecting shaft. A bidirectional lead screw is rotatably connected at the center between the fixed plate and the base plate. The bidirectional lead screw is driven by a knob on the fixed plate. A top fixed handle is fixed on the fixed plate. A through slot is opened in the middle of the top fixed handle. The knob has a slotted opening, and the slot and through slot are positioned accordingly. There are two mounting plates, with the upper and lower mounting plates symmetrically fitted on the double-acting screw and movably mounted with the connecting shaft. An installation mechanism is set on the outside of the mounting plate. The grinding rod and grinding motor are installed through the installation mechanism. The rotation of the double-acting screw driven by the knob can drive the installation mechanism to adjust the position of the grinding rod, so that the grinding rod can be closely attached to the inner wall of the mold and rotate at high speed under the action of the grinding motor to grind the hole wall. The slot can be detachably spliced ​​with auxiliary parts, which can help push the grinding structure into the hole.

[0005] As a preferred technical solution of this utility model, the installation mechanism includes a mounting plate fixing frame, a U-shaped mounting frame, a fitting frame, and a connecting rod. The mounting plate fixing frame is integrally formed on the outer wall of the mounting plate, and the fitting frame is integrally formed on the back of the U-shaped mounting frame. A shaft is fixed in both the mounting plate fixing frame and the fitting frame. One end of the connecting rod is rotatably connected to the shaft in the mounting plate fixing frame, and the other end is rotatably connected to the shaft fixed in the fitting frame. A grinding rod is rotatably installed in the U-shaped mounting frame. The grinding rod is driven by a grinding motor on the top surface of the U-shaped mounting frame. By manually rotating the knob, the two mounting plates can be brought closer to each other, thereby pushing the grinding rod against the inner hole wall under the action of the connecting rod, so that the grinding rod can be tightly attached to the hole wall and smoothly grind the inner hole wall.

[0006] As a preferred technical solution of this utility model, the grinding motor is powered by a storage battery.

[0007] As a preferred technical solution of this utility model, the auxiliary adjustment component includes a mounting rod, a top button, and a magnetic splicing block. The top button is fixed at the top of the mounting rod, and the magnetic splicing block is fixed at the bottom. The knob is made of iron, and the magnetic splicing block is embedded in the slot for splicing.

[0008] As a preferred technical solution of this utility model, the outer wall of the knob has an anti-slip groove, and the outer wall of the top knob also has an anti-slip groove.

[0009] The beneficial effects of this utility model are as follows: By manually operating the knob, the bidirectional lead screw is rotated, causing the two mounting plates to approach each other. When the mounting plates approach each other, the grinding rod moves towards the inner hole wall and fits against the side wall. The grinding motor, which is then started, can drive the grinding rod to rotate at high speed to grind the inner hole wall inside the machine box. According to different hole diameters, corresponding adjustments are made to make the grinding process more stable and improve the grinding effect. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of this utility model;

[0011] Figure 2 This is a bottom view of the structure of this utility model;

[0012] Figure 3 This is a schematic diagram of some components of the present invention.

[0013] In the diagram: 1. Fixed plate; 2. Base plate; 3. Connecting shaft; 4. Two-way lead screw; 5. Knob; 51. Groove; 6. Top fixed handle; 7. Through groove; 8. Mounting plate; 9. Mounting plate fixing frame; 10. U-shaped mounting frame; 11. Assembly frame; 12. Connecting rod; 13. Grinding rod; 14. Grinding motor; 15. Mounting rod; 16. Top button; 17. Magnet splicing block. Detailed Implementation

[0014] Example 1

[0015] like Figures 1 to 3As shown, this utility model discloses a precision grinding device for internal holes. The technical solution adopted includes a fixed plate 1, a base plate 2, a connecting shaft 3, a bidirectional lead screw 4, a knob 5, a slot 51, a top fixed handle 6, a through slot 7, a mounting plate 8, a mounting mechanism, a grinding rod 13, a grinding motor 14, and auxiliary components. The fixed plate 1 and the base plate 2 are connected by the connecting shaft 3. The bidirectional lead screw 4 is rotatably connected at the center between the fixed plate 1 and the base plate 2. The bidirectional lead screw 4 is driven by the knob 5 on the fixed plate 1. The top fixed handle 6 is fixed on the fixed plate 1. The top fixed handle 6 has a through slot 7 in the middle. The knob 5 has a slot 51. The slot 51 and the through slot 7 are positioned correspondingly. There are two mounting plates 8. The upper and lower mounting plates 8 are symmetrically installed on the bidirectional lead screw 4 and are movably fitted with the connecting shaft 3. A mounting mechanism is set outside the mounting plate 8. The grinding rod 13 and the grinding motor 14 are installed through the mounting mechanism. The auxiliary components can be detachably spliced ​​at the slot 51.

[0016] As a preferred technical solution of this utility model, the installation mechanism can make the grinding rod contact the inner hole wall and abut against it when the mounting plate 8 approaches. It can make corresponding adjustments according to different hole diameters to ensure stable grinding. Its specific structure includes a mounting plate fixing frame 9, a U-shaped mounting frame 10, a fitting frame 11 and a connecting rod 12. The mounting plate fixing frame 9 is integrally formed on the outer wall of the mounting plate 8, and the fitting frame 11 is integrally formed on the back of the U-shaped mounting frame 10. A shaft is fixed in both the mounting plate fixing frame 9 and the fitting frame 11. One end of the connecting rod 12 is rotatably connected to the shaft in the mounting plate fixing frame 9, and the other end is rotatably connected to the shaft fixed in the fitting frame 11. The grinding rod 13 is rotatably installed in the U-shaped mounting frame 10. The grinding rod 13 is driven by the grinding motor 14 on the top surface of the U-shaped mounting frame 10 and grinds the inner hole wall under high-speed rotation.

[0017] As a preferred technical solution of this utility model, the grinding motor 14 is powered by a storage battery.

[0018] As a preferred technical solution of this utility model, the auxiliary adjustment component includes a mounting rod 15, a top button 16, and a magnetic splicing block 17. The top button 16 is fixed at the top of the mounting rod 15, and the magnetic splicing block 17 is fixed at the bottom. The knob 5 is made of iron, and the magnetic splicing block 17 is embedded in the slot 51 for splicing.

[0019] As a preferred technical solution of this utility model, the outer wall of the knob 5 has an anti-slip groove, and the outer wall of the top knob 16 also has an anti-slip groove.

[0020] The working principle of this utility model is as follows: When in use, manually rotating the knob drives the bidirectional lead screw to rotate, which brings the two mounting plates closer together. Under the action of the connecting rod, the grinding rod is pushed against the inner hole wall, so that the grinding rod is in close contact with the hole wall and can smoothly grind the inner hole wall, improving grinding stability and providing grinding effect.

[0021] Components not described in detail in this article are existing technologies.

[0022] While the specific embodiments of this utility model have been described in detail above, this utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this utility model. Modifications or variations that do not involve creative labor are still within the protection scope of this utility model.

Claims

1. A precision grinding device for internal holes, characterized in that: The system includes a fixed plate (1), a base plate (2), a connecting shaft (3), a double-acting screw (4), a knob (5), a slot (51), a top fixed handle (6), a through slot (7), a mounting plate (8), a mounting mechanism, a grinding rod (13), a grinding motor (14), and auxiliary components; the fixed plate (1) and the base plate (2) are connected by the connecting shaft (3), and the double-acting screw (4) is rotatably connected at the center between the fixed plate (1) and the base plate (2); the double-acting screw (4) is driven by the knob (5) on the fixed plate (1); the fixed plate (1) 1) A top fixed handle rod (6) is fixed on the top, and a through groove (7) is opened in the middle of the top fixed handle rod (6); a groove (51) is opened on the knob (5), and the groove (51) and the through groove (7) are in corresponding positions; there are two mounting plates (8), and the upper and lower mounting plates (8) are symmetrically installed on the double-acting screw (4) and are movably fitted with the connecting shaft (3); an installation mechanism is set on the outside of the mounting plate (8), and the grinding rod (13) and the grinding motor (14) are installed through the installation mechanism; the auxiliary parts can be detached and spliced ​​at the groove (51).

2. The precision grinding device for internal holes according to claim 1, characterized in that: The outer wall of the knob (5) has anti-slip grooves.

3. The precision grinding device for internal holes according to claim 1, characterized in that: The installation mechanism includes a mounting plate fixing frame (9), a U-shaped mounting frame (10), a fitting frame (11), and a connecting rod (12); the mounting plate (8) is integrally formed with the mounting plate fixing frame (9) on its outer wall; the U-shaped mounting frame (10) is integrally formed with the fitting frame (11) on its back; a shaft is fixed in both the mounting plate fixing frame (9) and the fitting frame (11); one end of the connecting rod (12) is rotatably connected to the shaft in the mounting plate fixing frame (9), and the other end is rotatably connected to the shaft fixed in the fitting frame (11); a grinding rod (13) is rotatably installed in the U-shaped mounting frame (10), and the grinding rod (13) is driven by a grinding motor (14) on the top surface of the U-shaped mounting frame (10).

4. The precision grinding device for internal holes according to claim 3, characterized in that: The grinding motor (14) is powered by a storage battery.

5. The precision grinding device for internal holes according to claim 1, characterized in that: The auxiliary components include a mounting rod (15), a top button (16), and a magnetic splicing block (17); the top button (16) is fixed at the top of the mounting rod (15), and the magnetic splicing block (17) is fixed at the bottom; the knob (5) is made of iron, and the magnetic splicing block (17) is embedded in the slot (51) for splicing.

6. The precision grinding apparatus for internal holes according to claim 5, characterized in that: The outer wall of the top button (16) also has anti-slip grooves.

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