Inner hole finishing and grinding mechanism for metal parts and grinding machine

Abstract

The utility model relates to the technical field of inner hole grinding of metal parts, and discloses an inner hole finishing and grinding mechanism and a grinding machine for metal parts, the inner hole finishing and grinding mechanism comprises an eccentric grinding roller, an eccentric disc and a gear rack linear module, the eccentric grinding roller is driven by a grinding motor to rotate to grind and finish the inner wall surface of a metal sleeve; the eccentric disc is driven by a rotating shaft which is located on the same central axis with the metal sleeve to rotate, and the rotating shaft is driven by a rotary motor to rotate; a mounting seat is arranged on a movable sliding table of the gear rack linear module, the rotary motor is fixed on the mounting seat, and the rotating shaft is rotationally arranged on the mounting seat; and the eccentric grinding roller is driven by the rotary motor to do circular motion back and forth close to the inner wall face of the metal sleeve so as to trim and grind the inner wall face of the metal sleeve. The device can keep the contact pressure between the eccentric polishing roller and the inner wall of the metal sleeve stable, and improves the polishing effect.

Description

Technical Field

[0001] The utility model belongs to the technical field of inner hole grinding of metal parts, and in particular relates to an inner hole finishing and grinding mechanism and a grinding machine for metal parts. Background Art

[0002] As a kind of metal parts, the inner hole of the metal sleeve needs to be trimmed and polished during the production and processing. The traditional technology is to directly extend the grinding roller horizontally into the inner hole of the metal sleeve, and the grinding motor drives the grinding roller to rotate to polish the inner surface of the metal sleeve.

[0003] Since the grinding roller directly extends into the inner hole of the casing horizontally, it is difficult to ensure that the contact pressure between the grinding roller and the inner wall of the casing is evenly distributed, which will lead to uneven grinding effect and affect the surface quality of the inner wall of the casing. Due to unstable contact pressure and inaccurate positioning, the quality of the inner wall of the casing after grinding is difficult to meet the requirements of high precision and high finish. Utility Model Content

[0004] In order to make up for the deficiencies of the prior art, the utility model provides an inner hole finishing and grinding mechanism and a grinding machine for metal parts.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] An inner hole finishing and grinding mechanism for a metal component, comprising:

[0007] An eccentric grinding roller, which is driven by a grinding motor to rotate and grind the inner wall surface of the metal sleeve;

[0008] An eccentric disk, the eccentric disk is driven to rotate by a rotating shaft coaxial with the metal sleeve, and the rotating shaft is driven to rotate by a rotary motor;

[0009] A gear rack linear module, wherein a mounting seat is provided on the movable slide of the gear rack linear module, the rotary motor is fixed on the mounting seat, and the rotating shaft is rotatably arranged on the mounting seat;

[0010] The rotary motor drives the eccentric grinding roller to move back and forth in a circular motion along the inner wall surface of the metal sleeve, thereby trimming and grinding the inner wall surface of the metal sleeve.

[0011] The inner hole dressing and grinding mechanism of metal parts is used to dress and grind the inner wall surface of the metal sleeve, and through the coordinated action of the eccentric grinding roller, eccentric disk and gear rack linear module, efficient and precise grinding is achieved.

[0012] Preferably, the grinding motor is fixed on the eccentric disk and is located at an end away from the rotating shaft.

[0013] Preferably, the gear rack linear module drives the movable slide to move back and forth, thereby driving the eccentric grinding roller to move back and forth in the metal sleeve to trim and grind the inner wall surface of the metal sleeve.

[0014] A grinding machine comprises a fixture for clamping and positioning a metal sleeve and the inner hole finishing and grinding mechanism of the metal parts.

[0015] Preferably, the clamp comprises two brackets, concave arc brackets respectively fixed on the two brackets and supported by the metal sleeve, two concave arc pressing blocks cooperating with the concave arc brackets to clamp and position the metal sleeve, and a cylinder that pushes the two concave arc pressing blocks downward to clamp and position the metal sleeve between the concave arc brackets and the concave arc pressing blocks;

[0016] The piston rod end of the cylinder is fixedly connected to the pressing plate, and two concave arc-shaped pressing blocks are fixed at the bottom of the pressing plate. The cylinder pushes the two concave arc-shaped pressing blocks downward, and the concave arc-shaped pressing blocks fit the metal sleeve tightly, and the metal sleeve is firmly clamped between the concave arc-shaped bracket and the concave arc-shaped pressing block, ensuring the stability of the position of the metal sleeve during the grinding process.

[0017] Preferably, rubber pads are bonded to the inner wall surface of the concave arc-shaped bracket and the inner wall surface of the concave arc-shaped pressing block respectively, so as to reduce the damage of the metal sleeve caused by impact or pressure during the clamping process and protect the metal sleeve.

[0018] Preferably, the two brackets are fixed on the bottom wall of the protective cover, the cylinder is fixed on the top of the protective cover, and the concave arc-shaped pressure block, the concave arc-shaped bracket and the pressure plate are all located inside the protective cover.

[0019] Preferably, a circular through hole is formed on the protective cover to cooperate with the insertion and limiting of the metal sleeve, so as to facilitate the insertion and limiting of the metal sleeve.

[0020] Compared with the prior art, the technical effects and advantages of the utility model are:

[0021] The inner hole finishing and grinding mechanism and grinder of the metal parts, the metal sleeve is placed in the concave arc bracket, and the concave arc bracket cooperates with the metal sleeve to play a supporting role. The two concave arc pressure blocks are pushed down by the cylinder, and the metal sleeve is firmly clamped between the concave arc bracket and the concave arc pressure block. The eccentric grinding roller is driven by the grinding motor to rotate and finish and grind the inner wall surface of the metal sleeve. The eccentric disk is located on the same central axis of the metal sleeve and is driven to rotate by the rotating shaft to keep the contact pressure between the grinding roller and the inner wall of the metal sleeve stable, thereby improving the grinding effect. The gear rack linear module provides stable power transmission to ensure that the reciprocating motion of the eccentric grinding roller is uniform and reliable.

[0022] The design of the eccentric grinding roller and the eccentric disc makes the friction force more evenly distributed during the grinding process, thus improving the grinding efficiency. The gear rack linear module ensures the stable contact between the eccentric grinding roller and the inner wall of the metal sleeve, thereby ensuring the grinding quality. The reciprocating motion can complete the grinding and trimming of the inner wall of the metal sleeve in a shorter time, thus improving the production efficiency. The design of the fixture and the protective cover can protect the operator and the equipment from harm. The stable clamping and precise grinding help to reduce the wear on the equipment and extend the service life of the equipment. The cylinder pushes the pressing block to achieve quick clamping, which simplifies the operation process and improves the work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of the inner hole finishing and grinding mechanism of the metal parts of the utility model;

[0024] Figure 2 This is a schematic diagram of the structure of the grinding machine of the utility model;

[0025] Figure 3 For this utility model Figure 2 Schematic diagram of the internal structure;

[0026] Figure 4 It is a structural schematic diagram of the clamp of the utility model;

[0027] Figure 5 It is a schematic diagram of the internal structure of the protective cover of the utility model.

[0028] In the figure: 1. eccentric grinding roller; 2. grinding motor; 3. metal sleeve; 4. eccentric disk; 5. rotating shaft; 6. rotary motor; 7. gear rack linear module; 8. moving slide; 9. mounting seat; 10. clamp; 11. bracket; 12. concave arc bracket; 13. concave arc pressure block; 14. cylinder; 15. pressure plate; 16. rubber pad; 17. protective cover; 18. circular through hole. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] The following is combined with Figure 1-5 To further explain this application in detail,

[0031] The embodiment of the present application discloses an inner hole finishing and grinding mechanism for metal parts, comprising an eccentric grinding roller 1, an eccentric disk 4 and a gear rack linear module 7.

[0032] The eccentric grinding roller 1 is driven by the grinding motor 2 to rotate and grind the inner wall surface of the metal sleeve 3;

[0033] The eccentric disk 4 is driven to rotate by a rotating shaft 5 which is coaxial with the metal sleeve 3, and the rotating shaft 5 is driven to rotate by a rotary motor 6;

[0034] A mounting seat 9 is provided on the movable slide 8 of the gear rack linear module 7, the rotary motor 6 is fixed on the mounting seat 9, and the rotating shaft 5 is rotatably provided on the mounting seat 9;

[0035] The rotary motor 6 drives the eccentric grinding roller 1 to move back and forth in a circular motion along the inner wall surface of the metal sleeve 3 so as to trim and grind the inner wall surface of the metal sleeve 3 .

[0036] The eccentric grinding roller 1 is driven by the grinding motor 2 to rotate. The eccentric design makes the grinding roller generate a certain friction with the inner wall of the metal sleeve 3 during the rotation process, thereby grinding and trimming the inner wall. The eccentric disc 4 is located on the same central axis of the metal sleeve 3 and is driven to rotate by the rotating shaft 5. The function of the eccentric disc 4 is to keep the contact pressure between the grinding roller and the inner wall of the metal sleeve 3 stable and improve the grinding effect. The mounting seat 9 on the moving slide 8 of the gear rack linear module 7 is provided with a rotary motor 6 for driving the rotating shaft 5 to rotate. The rotating shaft 5 drives the eccentric grinding roller 1 to perform a circular motion so that it fits the inner wall of the metal sleeve 3 for trimming and grinding.

[0037] Through the design of the eccentric grinding roller 1 and the eccentric disk 4, the friction force is distributed more evenly during the grinding process, thereby improving the grinding efficiency. The gear rack linear module 7 ensures the stable contact between the eccentric grinding roller 1 and the inner wall of the metal sleeve 3, thereby ensuring the grinding quality. The mechanism has a simple structure and is easy to operate, and can realize automated production, save labor costs, and improve production efficiency.

[0038] The grinding motor 2 is fixed on the eccentric disk 4 and is located at an end away from the rotating shaft 5 .

[0039] The gear rack linear module 7 drives the movable slide 8 to move back and forth, and drives the eccentric grinding roller 1 to move back and forth in the metal sleeve 3 to trim and grind the inner wall surface of the metal sleeve 3.

[0040] During the reciprocating motion of the movable slide 8, the eccentric grinding roller 1 can more accurately trim and grind the inner wall of the metal sleeve 3, ensuring the flatness and smoothness of the inner wall surface. The gear rack linear module 7 provides stable power transmission, ensuring that the reciprocating motion of the eccentric grinding roller 1 is uniform and reliable, thereby improving the stability of the entire grinding process. The reciprocating motion can complete the grinding and trimming of the inner wall of the metal sleeve 3 in a shorter time, thereby improving production efficiency.

[0041] A grinding machine comprises a fixture 10 for clamping and positioning a metal sleeve 3 and the inner hole finishing and grinding mechanism of the metal parts.

[0042] The clamp 10 includes two brackets 11, concave arc brackets 12 respectively fixed on the two brackets 11 and supported by the metal sleeve 3, two concave arc pressing blocks 13 that clamp and position the metal sleeve 3 in cooperation with the concave arc brackets 12, and a cylinder 14 that pushes the two concave arc pressing blocks 13 downward to clamp and position the metal sleeve 3 between the concave arc brackets 12 and the concave arc pressing blocks 13;

[0043] The piston rod end of the cylinder 14 is fixedly connected to the pressure plate 15 , and two concave arc-shaped pressure blocks 13 are fixed to the bottom of the pressure plate 15 .

[0044] The fixture 10 includes two brackets 11, a concave arc bracket 12, a concave arc pressure block 13 and a cylinder 14. When the metal sleeve 3 needs to be trimmed and polished, it is placed in the concave arc bracket 12. The concave arc bracket 12 cooperates with the metal sleeve 3 to play a supporting role. The two concave arc pressure blocks 13 are pushed downward by the cylinder 14. The concave arc pressure blocks 13 fit tightly against the metal sleeve 3 and are firmly clamped between the concave arc bracket 12 and the concave arc pressure blocks 13 to ensure that the position of the metal sleeve 3 is stable during the polishing process.

[0045] The inner hole finishing and grinding mechanism of the metal parts finishes and grinds the inner wall surface of the metal sleeve 3, and realizes efficient and accurate grinding through the coordinated action of the eccentric grinding roller 1, the eccentric disk 4 and the gear rack linear module 7.

[0046] Through the cooperation of the concave arc bracket 12 and the concave arc pressure block 13, the metal sleeve 3 remains stable during the grinding process, avoiding grinding quality problems caused by vibration or displacement. The accuracy of the clamp 10 ensures the grinding accuracy of the inner wall of the metal sleeve 3, making the inner wall surface smoother and smoother. The cylinder 14 pushes the pressure block to achieve rapid clamping, which simplifies the operation process and improves work efficiency. During the grinding process, the clamp 10 firmly fixes the metal sleeve 3, reducing the safety risks caused by improper operation or equipment failure. Stable clamping and precise grinding help reduce wear on the equipment and extend the service life of the equipment.

[0047] The inner wall surface of the concave arc-shaped bracket 12 and the inner wall surface of the concave arc-shaped pressing block 13 are respectively bonded with rubber pads 16 .

[0048] The rubber pad 16 has a certain elasticity and softness, which can reduce the damage to the metal sleeve 3 caused by impact or pressure during the clamping process and protect the metal sleeve 3. The rubber pad 16 can provide additional friction to ensure that the metal sleeve 3 does not slide during the grinding process, thereby improving the safety and accuracy of the grinding. The rubber pad 16 can absorb a certain degree of vibration and impact, reduce the noise and vibration generated during the grinding process, and improve the comfort of operation. The protective effect of the rubber pad 16 helps to extend the life of the metal sleeve 3 and the equipment used, and reduce the frequency of maintenance and replacement.

[0049] The two brackets 11 are fixed on the bottom wall of the protective cover 17, the cylinder 14 is fixed on the top of the protective cover 17, the concave arc-shaped pressure block 13, the concave arc-shaped bracket 12 and the pressure plate 15 are all located in the protective cover 17, and the protective cover 17 is penetrated with a circular through hole 18 for interlacing and limiting the metal sleeve 3. The circular through hole 18 provided on the protective cover 17 facilitates the interlacing and limiting of the metal sleeve 3.

[0050] When in use, efficient and precise grinding can be achieved through the coordinated action of the eccentric grinding roller 1, the eccentric disk 4 and the gear rack linear module 7. This helps to ensure the flatness and finish of the inner wall surface of the metal sleeve 3, thereby improving the quality of the product. The metal sleeve 3 is firmly fixed by the clamp 10, reducing the safety risks caused by improper operation or equipment failure. This helps to ensure the smooth progress of the production process while reducing the risk of injury to equipment and workers. The clamp 10 helps to reduce wear on the equipment and extend the service life of the equipment through precise clamping and stable fixation. At the same time, the protective effect of the rubber pad 16 helps to reduce the frequency of maintenance and replacement, thereby reducing maintenance costs.

[0051] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A mechanism for finishing and polishing inner holes of metal parts, characterized in that: include: An eccentric grinding roller (1), wherein the eccentric grinding roller (1) is driven by a grinding motor (2) to rotate and grind and trim the inner wall surface of the metal sleeve (3); An eccentric disk (4), wherein the eccentric disk (4) is driven to rotate by a rotating shaft (5) which is coaxial with the metal sleeve (3), and the rotating shaft (5) is driven to rotate by a rotary motor (6); A gear rack linear module (7), wherein a mounting seat (9) is provided on a movable slide (8) of the gear rack linear module (7), the rotary motor (6) is fixed on the mounting seat (9), and the rotating shaft (5) is rotatably disposed on the mounting seat (9); The rotary motor (6) drives the eccentric grinding roller (1) to move back and forth in a circular motion against the inner wall surface of the metal sleeve (3), thereby trimming and grinding the inner wall surface of the metal sleeve (3).

2. The inner hole finishing and grinding mechanism for metal parts according to claim 1, characterized in that: The grinding motor (2) is fixed on the eccentric disk (4) and is located at an end away from the rotating shaft (5).

3. The inner hole finishing and grinding mechanism for metal parts according to claim 1, characterized in that: The gear rack linear module (7) drives the movable slide (8) to move back and forth, thereby driving the eccentric grinding roller (1) to move back and forth in the metal sleeve (3) to trim and grind the inner wall surface of the metal sleeve (3).

4. A grinding machine, characterized in that: It comprises a clamp (10) for clamping and positioning a metal sleeve (3) and an inner hole finishing and grinding mechanism for a metal component as claimed in any one of claims 1 to 3.

5. A grinding machine according to claim 4, characterized in that: The clamp (10) comprises two brackets (11), concave arc-shaped brackets (12) respectively fixed on the two brackets (11) and supported by the metal sleeve (3), two concave arc-shaped pressing blocks (13) cooperating with the concave arc-shaped brackets (12) to clamp and position the metal sleeve (3), and a cylinder (14) for pushing the two concave arc-shaped pressing blocks (13) downward to clamp and position the metal sleeve (3) between the concave arc-shaped brackets (12) and the concave arc-shaped pressing blocks (13); The piston rod end of the cylinder (14) is fixedly connected to the pressure plate (15), and two concave arc-shaped pressure blocks (13) are fixed on the bottom of the pressure plate (15).

6. A grinding machine according to claim 5, characterized in that: The inner wall surface of the concave arc-shaped bracket (12) and the inner wall surface of the concave arc-shaped pressing block (13) are respectively bonded with rubber pads (16).

7. A grinding machine according to claim 5, characterized in that: The two brackets (11) are fixed on the bottom wall of the protective cover (17), the cylinder (14) is fixed on the top of the protective cover (17), and the concave arc-shaped pressing block (13), the concave arc-shaped bracket (12) and the pressing plate (15) are all located inside the protective cover (17).

8. A grinding machine according to claim 7, characterized in that: The protective cover (17) is provided with a circular through hole (18) which is adapted to allow the metal sleeve (3) to penetrate and limit the position.

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