A device for preventing the jumping of a round bar in a centerless grinding machine

Abstract

The utility model relates to the technical field of centerless grinding machine, concretely to a device that centerless grinding machine prevents round stick to jump, apply to centerless grinding machine body, centerless grinding machine body includes driving wheel and from the driving wheel and the casing, include: the pressure material subassembly for carrying out the pressure material to the round stick, and the pressure material subassembly includes the elastic setting's resistance pole, fixed subassembly for carrying out the fixed pressure material subassembly, and fixed subassembly includes the fixed plate of installation on the casing, limiting component for the axial location to the round stick, and limiting component includes the limiting block of installation in the resistance pole end, through the cooperation of fixed plate and extension rod, will limit the pole and with the resistance pole elastic connection of limit pole install to the top between driving wheel and from the driving wheel, when polishing the round stick, the resistance pole of elastic setting extrude in the top of round stick, exert the left and right force of down pressure to round stick, cooperate with the three -dimensional constraint of grinding wheel guide wheel, reach the purpose that cost reduces, the rejection rate reduces, and reduce the probability that the safety accident appears.

Description

Technical Field

[0001] This utility model relates to the field of centerless grinding machine technology, specifically to a device for preventing the circular bar of a centerless grinding machine from jumping. Background Technology

[0002] A centerless grinder is a type of grinder that does not require the workpiece to be positioned by an axis for grinding. It mainly consists of three mechanisms: a grinding wheel, an adjusting wheel, and a workpiece support. The grinding wheel is responsible for the actual grinding work, the adjusting wheel controls the rotation of the workpiece and the feed rate of the workpiece, and the workpiece support supports the workpiece during grinding. When machining round bars, they are first rough-ground using a grinding wheel, guide wheel, and cutting tool. During grinding, the round bar may jump, causing it to suddenly collide with the grinding wheel, guide wheel, or cutting tool, resulting in accelerated wear of the grinding wheel, guide wheel, or cutting tool. At the same time, the round bar may break, which in turn affects the processing cost and the safety of the operators. Utility Model Content

[0003] The purpose of this invention is to provide a device for preventing the bar from jumping in a centerless grinder, so as to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: A device for preventing bar runout in a centerless grinder, applied to the body of the centerless grinder, the body of the centerless grinder including a driving wheel and a driven wheel, the driving wheel and the driven wheel being externally mounted with a housing, characterized in that it includes: A pressing assembly for pressing a round bar, the pressing assembly including a resiliently configured abutment rod; A fixing component for fixing the pressing component, the fixing component including a fixing plate mounted on the housing; A limiting component is used to axially limit the round bar, the limiting component including a limiting block installed at the end of the abutment rod.

[0005] Preferably, the fixing plate is installed on the housing at a position above the drive wheel, and two sets of fixing plates are installed, with the two sets of fixing plates symmetrically distributed.

[0006] Preferably, each of the two sets of fixing plates has at least one set of fixing grooves, and fixing bolts are screwed into the fixing grooves. The fixing plates are installed on the housing through the cooperation of the fixing bolts and the fixing grooves.

[0007] Preferably, both sets of fixed plates are equipped with extension rods on their sidewalls, with one end of the extension rod away from the fixed plate extending above the driven wheel.

[0008] Preferably, the pressing assembly further includes a limiting rod slidably inserted into the extension rod, the limiting rod being located at the center of the outer wall of the driving wheel and the outer wall of the driven wheel.

[0009] Preferably, the end of the limiting rod has a through hole, the abutment rod is inserted into the through hole, and the top end of the abutment rod passes through the through hole and is connected to a gasket.

[0010] Preferably, a return spring is sleeved on the outer surface of the abutment rod, the return spring is located between the upper end of the limiting rod and the lower end of the gasket, and the abutment rod is elastically connected to the limiting rod through the return spring.

[0011] Preferably, a ball bearing is rotatably provided at the center of the lower end of the abutment rod.

[0012] Preferably, the outer surface of the limiting rod is provided with a guide groove, and the side wall of the extension rod is screwed with a positioning bolt at the position corresponding to the guide groove.

[0013] Preferably, the limiting block is installed at the lower end of the abutment rod, and the limiting block has an "L" shaped cross-section, with the open ends of the two sets of limiting blocks close to each other.

[0014] Compared with the prior art, the beneficial effects of this utility model are: This invention uses a fixed plate and an extension rod to install a limiting rod and a retaining rod elastically connected to the limiting rod above the driving wheel and the driven wheel. When grinding the round bar, the elastically set retaining rod presses against the top of the round bar, applying downward and left-right pressure to the round bar. This, together with the grinding wheel guide wheel, forms a three-dimensional constraint, achieving the goals of reducing costs, reducing scrap rate, and lowering the probability of safety accidents. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 for Figure 1 Enlarged schematic diagram of the structure at point A in the middle; Figure 3 This is a schematic diagram showing the connection between the pressing component and the fixing component of this utility model.

[0016] In the diagram: 1. Centerless grinder body; 2. Driving wheel; 3. Driven wheel; 4. Housing; 5. Fixing plate; 6. Fixing groove; 7. Fixing bolt; 8. Extension rod; 9. Limiting rod; 10. Return spring; 11. Supporting rod; 12. Limiting block; 13. Shim; 14. Guide groove; 15. Positioning bolt; 16. Through hole; 17. Ball bearing. Detailed Implementation

[0017] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0018] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0019] like Figure 1-3 As shown, this application provides a device for preventing the bar from jumping in a centerless grinder, which is applied to the body 1 of the centerless grinder. The body 1 of the centerless grinder includes a driving wheel 2 and a driven wheel 3. The driving wheel 2 and the driven wheel 3 are externally mounted on a housing 4, which includes a fixing component for fixing the pressure component. The fixing component includes a fixing plate 5 mounted on the housing 4. The fixing plate 5 is installed on the housing 4 at a position above the drive wheel 2, and there are two sets of fixing plates 5, which are symmetrically distributed. Both sets of fixing plates 5 are provided with at least one set of fixing grooves 6, and fixing bolts 7 are screwed into the fixing grooves 6. The fixing plates 5 are installed on the housing 4 through the cooperation of the fixing bolts 7 and the fixing grooves 6. The length of the fixing groove 6 is much larger than the diameter of the fixing bolt 7. The extension rod 8 can be moved along the fixing bolt 7 by the fixing plate 5 so that the distance between the two sets of extension rods 8 is matched with the length of the round bar.

[0020] Specifically, such as Figures 1-3 As shown, a device for preventing the circular bar of a centerless grinder from jumping also includes a pressing assembly for pressing the circular bar, the pressing assembly including an elastically arranged support rod 11.

[0021] The pressing assembly also includes a limiting rod 9 that is slidably inserted into the extension rod 8, and the limiting rod 9 is located at the center of the outer wall of the driving wheel 2 and the outer wall of the driven wheel 3; The end of the limiting rod 9 has a through hole 16, the abutting rod 11 is inserted into the through hole 16, and the top end of the abutting rod 11 passes through the through hole 16 and is connected to a gasket 13. A return spring 10 is sleeved on the outer surface of the abutment rod 11. The return spring 10 is located between the upper end of the limiting rod 9 and the lower end of the gasket 13. The abutment rod 11 is elastically connected to the limiting rod 9 through the return spring 10. The end of the holding rod 11 and the surface of the round bar are elastically connected by the cooperation of the return spring 10 and the limiting rod 9. When the round bar is subjected to downward pressure, the holding rod 11 can be lifted by the shim 13 to facilitate the placement of the round bar. During the grinding process, the holding rod 11 presses down on the round bar under the action of the return spring 10.

[0022] Specifically, such as Figure 3 As shown, a ball bearing 17 is rotatably provided at the center of the lower end of the abutment rod 11; During the grinding process, the round bar will rotate. When the holding rod 11 applies downward pressure to the round bar, in order to reduce the resistance generated by the holding rod 11 applying downward pressure to the round bar, a ball bearing 17 is provided to reduce the friction between the end of the holding rod 11 and the round bar.

[0023] Specifically, such as Figures 1-3 As shown, a guide groove 14 is provided on the outer surface of the limiting rod 9, and a positioning bolt 15 is screwed onto the side wall of the extension rod 8 at the position corresponding to the guide groove 14. The axial distance between the end of the support rod 11 and the space between the support rod 11, the driving wheel 2, and the driven wheel 3 in the initial state can be adjusted by the cooperation of the positioning bolt 15 and the guide groove 14. When grinding the round bar, the elastically set support rod 11 applies a large force to press down the round bar. When it reaches the position in the initial state, the force applied by the return spring 10 is removed, and the round bar is ground to a suitable diameter.

[0024] Specifically, such as Figures 1-3 As shown, a device for preventing the circular bar of a centerless grinder from jumping includes a limiting assembly for axially limiting the circular bar. The limiting assembly includes a limiting block 12 installed at the end of the supporting rod 11. The limiting block 12 is installed at the lower end of the supporting rod 11, and the limiting block 12 has an "L" shaped cross-section. The open ends of the two sets of limiting blocks 12 are close to each other. The limiting block 12 clamps both ends of the round bar to prevent the round bar from moving laterally during processing, which would cause the end of the holding rod 11 to detach from the round bar.

[0025] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary; within the framework of this invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of this invention as described above, which are not provided in the details for the sake of brevity.

[0026] This utility model is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A device for preventing bar runout in a centerless grinder, applied to the body (1) of the centerless grinder, the body (1) comprising a drive wheel (2) and a driven wheel (3), wherein a housing (4) is mounted on the outside of the drive wheel (2) and the driven wheel (3), characterized in that, include: A pressing assembly for pressing a round bar, the pressing assembly including a resiliently configured abutment rod (11). A fixing component for fixing the pressing component, the fixing component including a fixing plate (5) mounted on the housing (4); A limiting component is used to axially limit the round bar, the limiting component including a limiting block (12) installed at the end of the abutment rod (11).

2. The device for preventing bar runout on a centerless grinder according to claim 1, characterized in that, The fixing plate (5) is installed on the housing (4) at a position above the drive wheel (2), and there are two sets of fixing plates (5) installed, with the two sets of fixing plates (5) symmetrically distributed.

3. The device for preventing bar runout on a centerless grinder according to claim 2, characterized in that, Both sets of fixing plates (5) are provided with at least one set of fixing grooves (6), and fixing bolts (7) are screwed into the fixing grooves (6). The fixing plates (5) are installed on the housing (4) through the cooperation of the fixing bolts (7) and the fixing grooves (6).

4. The device for preventing bar runout on a centerless grinder according to claim 3, characterized in that, Both sets of fixed plates (5) are equipped with extension rods (8) on their side walls. The end of the extension rod (8) away from the fixed plate (5) extends to the top of the driven wheel (3).

5. The device for preventing bar runout in a centerless grinder according to claim 4, characterized in that, The pressing assembly also includes a limiting rod (9) that is slidably inserted into the extension rod (8), and the limiting rod (9) is located at the center of the outer wall of the driving wheel (2) and the outer wall of the driven wheel (3).

6. The device for preventing bar runout on a centerless grinder according to claim 5, characterized in that, The end of the limiting rod (9) has a through hole (16), the abutment rod (11) is inserted into the through hole (16), and the top of the abutment rod (11) passes through the through hole (16) and is connected to a gasket (13).

7. A device for preventing bar runout on a centerless grinder according to claim 6, characterized in that, A return spring (10) is sleeved on the outer surface of the abutment rod (11). The return spring (10) is located between the upper end of the limiting rod (9) and the lower end of the gasket (13). The abutment rod (11) is elastically connected to the limiting rod (9) through the return spring (10).

8. A device for preventing bar runout on a centerless grinder according to claim 7, characterized in that, A ball bearing (17) is rotatably provided at the center of the lower end of the abutment rod (11).

9. A device for preventing bar runout on a centerless grinder according to claim 8, characterized in that, The outer surface of the limiting rod (9) is provided with a guide groove (14), and the side wall of the extension rod (8) is screwed with a positioning bolt (15) at the position corresponding to the guide groove (14).

10. A device for preventing bar runout on a centerless grinder according to claim 9, characterized in that, The limiting block (12) is installed at the lower end of the abutment rod (11), and the limiting block (12) has an "L" shaped cross section, with the opening ends of the two sets of limiting blocks (12) close to each other.

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