Grinding machine center frame capable of preventing parts from being abraded

Abstract

According to the technical scheme, the grinding machine center frame capable of preventing part abrasion is characterized by comprising an upper arc-shaped support and a lower arc-shaped support, the lower surface of the upper arc-shaped support and the upper surface of the lower arc-shaped support are connected, supporting plates are fixed to the upper arc-shaped support and the lower arc-shaped support, the two supporting plates are in threaded connection with rotating screw rods, and the rotating screw rods are in threaded connection with the upper arc-shaped support and the lower arc-shaped support. The end parts of the two rotating screw rods are rotationally connected with supporting frames through bearings; the two sides of the supporting frame are each provided with two obliquely-symmetrical rotating frames, meanwhile, the friction coefficient of the plastic abutting roller is low, the plastic abutting roller can rotate along with the shaft parts, the friction force between the plastic abutting roller and the shaft parts can be further reduced, abrasion can be reduced, and meanwhile, a Teflon coating arranged on the surface of the plastic abutting roller can effectively prevent the shaft parts from being abraded under the high load. The wear-resistant material has excellent wear resistance and low friction coefficient, prevents wear generated when the wear-resistant material is in contact with a component, and can improve the processing precision of the component.

Description

Technical Field

[0001] The utility model relates to the technical field of a grinding machine center frame, in particular to a grinding machine center frame which can prevent parts from being worn. Background Art

[0002] Shaft parts and shaft system components are common parts of mechanical devices, and such parts generally need to be processed on a grinder. In the prior art, when grinding the above-mentioned shaft parts or shaft system components, the following two methods are generally used: one is direct processing, and the other is processing by clamping the parts to be processed by a center frame. When a center frame is set, the parts are not easily offset in the force direction when subjected to grinding force, which can reduce the problem of large processing errors of the parts.

[0003] For example, the Chinese patent with the authorization announcement number CN218658440U discloses a grinding machine center frame, which belongs to the field of mechanical technology. The grinding machine center frame includes two frame bodies arranged up and down, and a horizontally arranged center hole is formed between the two frame bodies. One end of the two frame bodies is hinged by a horizontally arranged rotating shaft, and the other end of the two frame bodies is fixedly connected by bolts. Three top blocks arranged in a triangular shape are arranged in the center hole, and a driving structure in a strip shape is provided on the frame body for driving the top blocks to approach or move away from the axis of the center hole.

[0004] The above-mentioned grinding machine center frame has the advantage of convenient adjustment of the length of use; however, the above-mentioned grinding machine center frame still has some disadvantages, such as: during the component processing process, friction is easily generated when the top block of the grinding machine center frame contacts with the surface of the component, making the surface of the component susceptible to wear. Most of the top blocks are made of metal materials with high structural strength and long service life. However, the friction generated when contacting with highly operating components can easily cause damage to the surface of the component, affecting the processing accuracy. Utility Model Content

[0005] In view of the problems mentioned in the background technology, the purpose of the utility model is to provide a grinding machine center frame that prevents component wear, so as to solve the problems mentioned in the background technology.

[0006] The above technical objectives of the utility model are achieved through the following technical solutions:

[0007] A center frame of a grinding machine for preventing parts from being worn, comprising an upper arc-shaped bracket and a lower arc-shaped bracket, wherein the lower surface of the upper arc-shaped bracket is connected to the upper surface of the lower arc-shaped bracket, and both are fixed with support plates, and the two support plates are both threadedly connected with rotating screws, and the ends of the two rotating screws are rotatably connected to the support frame through bearings;

[0008] Two obliquely symmetrical rotating frames are respectively arranged on both sides of the support frame, and plastic pressing rollers are rotatably connected to the two rotating frames through bearings, and Teflon coatings are arranged on the surfaces of the plastic pressing rollers.

[0009] By adopting the above technical scheme, when the lower arc bracket is installed on the grinding machine, the shaft components to be processed on the grinding machine can be placed in a set by cooperating with the upper arc bracket. The upper and lower rotating screws rotate on the two support plates, which can drive the two support frames to approach each other, so that it is convenient to adjust the height of the component clamping according to the use position of the center frame of the grinder, and the scope of application can be improved. Rotating frames are arranged on both sides of the support frame to facilitate the rotation connection with the two plastic clamping rollers through bearings. The contact range of the plastic clamping roller and the shaft components is large, which can better improve the stability of the processing of the shaft components. At the same time, the friction coefficient of the plastic clamping roller is low, and it can rotate with the shaft components, which can further reduce the friction with the shaft components and reduce wear. At the same time, the Teflon coating arranged on the surface of the plastic clamping roller can have excellent wear resistance under high load, and at the same time, the friction coefficient is low, which prevents wear caused by contact with the components, and improves the accuracy of component processing.

[0010] Preferably, a mounting plate is fixed below the lower arc-shaped bracket, and a plurality of mounting holes are formed on the mounting plate.

[0011] By adopting the above technical solution, the grinding machine center frame can be conveniently fixed on the grinding machine using screws through the multiple mounting holes opened on the mounting plate.

[0012] Preferably, a triangular reinforcing rib is fixed between the mounting plate and the lower arc-shaped bracket.

[0013] By adopting the above technical solution, the connection strength between the mounting plate and the lower arc-shaped bracket can be improved by using the triangular reinforcing ribs, thereby increasing the service life.

[0014] Preferably, L-shaped connecting blocks are fixed on both sides of the support frame, guide holes are opened on both sides of the support plate, guide rods are slidably connected in the guide holes, and the upper ends of the guide rods are fixedly connected to the L-shaped connecting blocks.

[0015] By adopting the above technical solution, one end of the guide rod is fixed on the L-shaped connecting block, and the other end is slidably connected to the guide hole of the support plate, which can ensure the smooth vertical movement of the support frame.

[0016] Preferably, one side end portion of the guide rod is threadedly connected to a limiting block.

[0017] By adopting the above technical solution, the limit block can limit the moving distance of the guide rod and prevent the guide rod from falling off.

[0018] Preferably, connecting plates are arranged on both sides of the upper arc-shaped bracket and the lower arc-shaped bracket, and threaded holes are formed in the connecting plates.

[0019] By adopting the above technical solution, through the threaded holes formed in the connecting plates, it is convenient to firmly fix the upper arc-shaped bracket and the lower arc-shaped bracket with screws.

[0020] Preferably, two symmetrical U-shaped blocks are fixed at the top of the upper arc-shaped bracket.

[0021] By adopting the above technical solution, the structural strength of the upper arc-shaped bracket can be enhanced through the U-shaped blocks, and it is also convenient to carry the center rest of the grinding machine.

[0022] Preferably, the included angle between the two rotating frames is 90°.

[0023] By adopting the above technical solution, the included angle between two adjacent rotating frames is 90°, which can improve the accuracy of the component position tightening.

[0024] In summary, the present utility model mainly has the following beneficial effects:

[0025] First, in the center rest of the grinding machine for preventing component wear, when the lower arc-shaped bracket is installed on the grinding machine, through cooperation with the upper arc-shaped bracket, the shaft-like components to be processed on the grinding machine can be sleeved and placed. The two upper and lower rotating screws rotate on the two support plates, which can drive the two support frames to approach each other, facilitating adjustment of the clamping height of the components according to the use position of the center rest of the grinding machine, and improving the applicable range.

[0026] Second, in the center rest of the grinding machine for preventing component wear, rotating frames are arranged on both sides of the support frame, facilitating rotational connection with two plastic pressing rollers through bearings. The plastic pressing rollers have a large contact range with the shaft-like components, which can better improve the stability of the shaft-like component processing. At the same time, the plastic pressing rollers have a low friction coefficient and can rotate along with the shaft-like components, further reducing the friction force with the shaft-like components and reducing wear. At the same time, the Teflon coating provided on the surface of the plastic pressing rollers has excellent wear resistance under high load and a low friction coefficient, preventing wear generated when contacting the components, and improving the processing accuracy of the components. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is one of the structural schematic diagrams of the present utility model;

[0028] Figure 2 is the second structural schematic diagram of the present utility model;

[0029] Figure 3 is Figure 2 the partial enlarged view at A in

[0030] Reference numerals: 1, upper arc-shaped bracket; 2, lower arc-shaped bracket; 3, support plate; 4, rotating screw; 5, support frame; 6, rotating frame; 7, plastic pressing roller; 8, Teflon coating; 9, mounting plate; 10, mounting hole; 11, triangular reinforcing rib plate; 12, L-shaped connecting block; 13, guiding hole; 14, guiding rod; 15, limiting block; 16, connecting plate; 17, threaded hole; 18, U-shaped block. Detailed implementation manner

[0031] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0032] Reference Figure 1-Figure 3 , a center rest for a grinding machine to prevent component wear, including an upper arc-shaped bracket 1 and a lower arc-shaped bracket 2. The lower surface of the upper arc-shaped bracket 1 is connected to the upper surface of the lower arc-shaped bracket 2, and support plates 3 are fixed on both. Rotating screws 4 are threadedly connected to both of the two support plates 3, and the ends of the two rotating screws 4 are rotatably connected to a support frame 5 through bearings.

[0033] On both sides of the support frame 5, two inclined and symmetric rotating frames 6 are respectively arranged. Plastic pressing rollers 7 are rotatably connected to both of the two rotating frames 6 through bearings. A Teflon coating 8 is provided on the surface of the plastic pressing roller 7. The included angle between the two rotating frames 6 is 90°, and the included angle between two adjacent rotating frames 6 is 90°, which can improve the accuracy of component position pressing.

[0034] During use, when the lower arc-shaped bracket 2 is installed on the grinding machine, through cooperation with the upper arc-shaped bracket 1, the shaft-like components to be processed on the grinding machine can be sleeved and placed. The upper and lower two rotating screws 4 rotate on the two support plates 3, which can drive the two support frames 5 to approach each other. According to the use position of the center rest of the grinding machine, the clamping height of the components can be adjusted, and the applicable range can be improved. The rotating frames 6 are arranged on both sides of the support frame 5, which is convenient for rotatably connecting with the two plastic pressing rollers 7 through bearings. The contact range of the plastic pressing rollers 7 with the shaft-like components is large, which can better improve the smooth performance of the processing of the shaft-like components. At the same time, the friction coefficient of the plastic pressing rollers 7 is low, which can rotate along with the shaft-like components, further reducing the friction force with the shaft-like components and reducing wear. At the same time, the Teflon coating 8 provided on the surface of the plastic pressing roller 7 can have excellent wear resistance under high load, and the friction coefficient is relatively low, preventing wear generated when contacting the components, and improving the processing accuracy of the components.

[0035] Reference Figure 1-Figure 3, a mounting plate 9 is fixed below the lower arc-shaped bracket 2. A plurality of mounting holes 10 are provided on the mounting plate 9. Through the plurality of mounting holes 10 provided on the mounting plate 9, it is convenient to use screws to fix the grinder center rest on the grinder for use.

[0036] Reference Figure 1-Figure 3 , a triangular reinforcing rib plate 11 is fixed between the mounting plate 9 and the lower arc-shaped bracket 2. Through the triangular reinforcing rib plate 11, the connection strength between the mounting plate 9 and the lower arc-shaped bracket 2 can be improved, and the service life can be increased.

[0037] Reference Figure 1-Figure 3 , L-shaped connecting blocks 12 are respectively fixed on both sides of the support frame 5. Guide holes 13 are respectively provided on both sides of the support plate 3. A guide rod 14 is slidably connected in the guide hole 13. The upper end of the guide rod 14 is fixedly connected to the L-shaped connecting block 12. When one end of the guide rod 14 is fixed on the L-shaped connecting block 12 and the other end is slidably connected in the guide hole 13 of the support plate 3, the stable performance of the vertical movement of the support frame 5 can be ensured.

[0038] Reference Figure 1-Figure 3 , a limit block 15 is threadedly connected to one side end of the guide rod 14. The limit block 15 can limit the moving distance of the guide rod 14 and prevent the guide rod 14 from falling off.

[0039] Reference Figure 1-Figure 3 , connecting plates 16 are provided on both sides of the upper arc-shaped bracket 1 and the lower arc-shaped bracket 2. Threaded holes 17 are provided on the connecting plates 16. Through the threaded holes 17 provided on the connecting plates 16, it is convenient to use screws to firmly fix the upper arc-shaped bracket 1 and the lower arc-shaped bracket 2.

[0040] Reference Figure 1-Figure 3 , two symmetric U-shaped blocks 18 are fixed at the top of the upper arc-shaped bracket 1. Through the U-shaped blocks 18, the structural strength of the upper arc-shaped bracket 1 can be enhanced, and it is also convenient to carry the grinder center rest.

[0041] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A grinding machine center frame for preventing parts from being worn, comprising an upper arc-shaped support (1) and a lower arc-shaped support (2), characterized in that: The lower surface of the upper arc-shaped bracket (1) is connected to the upper surface of the lower arc-shaped bracket (2), and support plates (3) are fixed on both. Rotating screws (4) are threadedly connected to both of the support plates (3), and the ends of both of the rotating screws (4) are rotatably connected to a support frame (5) through bearings; On both sides of the support frame (5), two inclined and symmetric rotating frames (6) are respectively arranged. Plastic pressing rollers (7) are rotatably connected to both of the rotating frames (6) through bearings, and a Teflon coating (8) is arranged on the surface of the plastic pressing roller (7).

2. The center frame of a grinding machine for preventing parts from being worn out according to claim 1, characterized in that: An installation plate (9) is fixed below the lower arc-shaped bracket (2), and a plurality of installation holes (10) are formed in the installation plate (9).

3. The center frame of the grinding machine for preventing parts from being worn out according to claim 2, characterized in that: A triangular reinforcing rib plate (11) is fixed between the installation plate (9) and the lower arc-shaped bracket (2).

4. The center frame of a grinding machine for preventing parts from being worn out according to claim 1, characterized in that: L-shaped connecting blocks (12) are respectively fixed on both sides of the support frame (5). Guide holes (13) are respectively formed on both sides of the support plate (3). Guide rods (14) are slidably connected in the guide holes (13), and the upper ends of the guide rods (14) are fixedly connected to the L-shaped connecting blocks (12).

5. The center frame of the grinding machine for preventing parts from being worn out according to claim 4, characterized in that: A limiting block (15) is threadedly connected to one side end of the guide rod (14).

6. The center frame of a grinding machine for preventing parts from being worn out according to claim 1, characterized in that: Connection plates (16) are arranged on both sides of the upper arc-shaped bracket (1) and the lower arc-shaped bracket (2), and threaded holes (17) are formed in the connection plates (16).

7. The center frame of a grinding machine for preventing parts from being worn out according to claim 1, characterized in that: Two symmetric U-shaped blocks (18) are fixed at the top end of the upper arc-shaped bracket (1).

8. The center frame of a grinding machine for preventing parts from being worn out according to claim 1, characterized in that: The included angle between the two rotating frames (6) is 90°.

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