Automatic device for surface fine grinding of round pipe fitness equipment

Abstract

The utility model discloses a kind of round tube fitness equipment surface precision grinding automation devices, comprising: polishing module, it includes bracket, polishing wheel and guide wheel, round pipe workpiece is placed on bracket, polishing wheel and guide wheel are symmetrically arranged on the both sides of round pipe workpiece;Positioning module, it includes screw rod driver and positioning block, positioning block is fixedly installed on the nut moving pair of screw rod driver, rotatable plug block is provided on positioning block, plug block position corresponds round pipe workpiece, annular baffle is provided on plug block.The utility model compared with prior art, solve the problem that existing round tube parts lack axial positioning when being processed by single-station round tube polishing machine for surface precision grinding.

Description

Technical Field

[0001] This utility model relates to the field of grinding device technology, and in particular to an automated device for fine grinding of the surface of round tube fitness equipment. Background Technology

[0002] In fitness equipment such as barbells and dumbbells, hollow steel tubes are used as grip cylinders. In order to remove burrs, tool marks and other processing traces, reduce surface roughness, eliminate surface micro-cracks, and improve fatigue strength and wear resistance, the surface of the round tube parts needs to be finely ground first.

[0003] When existing round tube parts are precision ground using a single-station round tube polishing machine, the round tube parts are placed between the polishing wheel and the guide wheel. The guide wheel drives the round tube parts to rotate while simultaneously propelling them forward axially. The positioning effect of the round tube parts during axial movement is poor, especially when the guide wheel surface is worn or the support is deformed, affecting the surface finishing quality. Utility Model Content

[0004] The purpose of this utility model is to provide an automated device for surface fine grinding of round tube fitness equipment, so as to solve the problem of lack of axial positioning when existing round tube parts are subjected to surface fine grinding by a single-station round tube polishing machine.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: an automated device for fine grinding of the surface of a circular tube fitness equipment, comprising:

[0006] The polishing module includes a bracket, a polishing wheel, and a guide wheel. The round tube workpiece is placed on the bracket, and the polishing wheel and guide wheel are symmetrically arranged on both sides of the round tube workpiece.

[0007] The positioning module includes a lead screw driver and a positioning block. The positioning block is fixedly installed on the nut sliding joint of the lead screw driver. A rotatable stop block is provided on the positioning block. The position of the stop block corresponds to the round tube workpiece. An annular retaining edge is provided on the stop block.

[0008] As a further description of the above technical solution:

[0009] The positioning block includes a lower seat and a connecting plate. The lower seat is fixedly mounted on the nut sliding joint, the connecting plate is detachably mounted on the lower seat, and the plug is rotatably mounted on the connecting plate.

[0010] As a further description of the above technical solution:

[0011] The lower body is provided with a waist-shaped hole, and the bolt passes through the connecting plate and the waist-shaped hole in sequence before being connected to the nut.

[0012] As a further description of the above technical solution:

[0013] The lower body is provided with a positioning groove, and the connecting plate is slidably connected in the positioning groove.

[0014] As a further description of the above technical solution:

[0015] A rubber pad is provided between the lower seat and the nut sliding pair.

[0016] As a further description of the above technical solution:

[0017] The end of the plug is hemispherical.

[0018] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0019] 1. In this utility model, in order to achieve the positioning of the round tube workpiece, the nut moving pair of the screw driver in the positioning module drives the positioning block to move. The plug of the positioning block is inserted into the round tube workpiece and abuts against the end of the round tube workpiece through the annular flange. As the round tube workpiece is continuously conveyed axially forward, the plug rotates with the round tube workpiece. At the same time, the screw driver adjusts the moving speed of the nut moving pair to match the conveying speed of the round tube workpiece, so that the positioning block and the plug move backward synchronously, maintaining the positioning of the round tube workpiece during the conveying process, and effectively ensuring the surface grinding quality.

[0020] 2. In this utility model, the cross-section of the lower seat is L-shaped. The connecting plate is bolted to the vertical plate of the lower seat, and the plug is rotatably mounted on the support column of the connecting plate via a bearing. An oblong hole is provided on the vertical plate of the lower seat, allowing the installation height of the connecting plate to be adjusted, thereby ensuring that the height of the plug corresponds to the height of the round tube workpiece, effectively positioning the round tube workpiece. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 A schematic diagram of the structure of an automated device for precision grinding of the surface of a circular tube fitness equipment. Figure 1 .

[0023] Figure 2 A schematic diagram of the structure of an automated device for precision grinding of the surface of a circular tube fitness equipment. Figure 2 .

[0024] Figure 3 This is a schematic diagram of the positioning module in an automated device for fine grinding of the surface of a round tube fitness equipment.

[0025] Figure 4 This is a cross-sectional view of the positioning module in an automated device for fine grinding of the surface of a circular tube fitness equipment.

[0026] Legend:

[0027] 1. Polishing module; 11. Bracket; 12. Polishing wheel; 13. Guide wheel;

[0028] 2. Positioning module; 21. Screw driver; 22. Positioning block; 221. Plug; 2211. Annular flange; 222. Lower seat; 2221. Waist-shaped hole; 2222. Positioning groove; 2223. Rubber pad; 223. Connecting plate; 224. Bearing;

[0029] 9. Round tube workpieces. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0031] Example 1

[0032] Please see Figure 1-4 This utility model provides a technical solution: an automated device for fine grinding of the surface of a circular tube fitness equipment, comprising:

[0033] Polishing module 1 includes a bracket 11, a polishing wheel 12 and a guide wheel 13. The round tube workpiece 9 is placed on the bracket 11, and the polishing wheel 12 and the guide wheel 13 are symmetrically arranged on both sides of the round tube workpiece 9.

[0034] The positioning module 2 includes a lead screw driver 21 and a positioning block 22. The positioning block 22 is fixedly installed on the nut moving pair of the lead screw driver 21. A rotatable stopper 221 is provided on the positioning block 22. The position of the stopper 221 corresponds to the round tube workpiece 9. An annular retaining edge 2211 is provided on the stopper 221.

[0035] The positioning block 22 includes a lower seat 222 and a connecting plate 223. The lower seat 222 is fixedly mounted on the nut sliding joint, and the connecting plate 223 is detachably mounted on the lower seat 222. The plug 221 is rotatably mounted on the connecting plate 223. The lower seat 222 has an "L"-shaped cross-section. The connecting plate 223 is bolted to the vertical plate of the lower seat 222, and the plug 221 is rotatably mounted on the support column of the connecting plate 223 via a bearing 224.

[0036] The lower seat 222 is provided with a waist-shaped hole 2221. The bolt passes through the connecting plate 223 and the waist-shaped hole 2221 in sequence and then connects to the nut. The waist-shaped hole 2221 is set on the vertical plate of the lower seat 222, so that the installation height of the connecting plate 223 can be adjusted, thereby making the height of the plug 221 correspond to the height of the round tube workpiece 9, effectively positioning the round tube workpiece 9.

[0037] The end of the plug 221 is hemispherical, which facilitates the insertion and positioning of the plug 221 and the round tube workpiece 9.

[0038] Working principle: Polishing module 1 is an existing single-station polishing machine. When the round tube workpiece 9 in the fitness equipment is being finely ground, the round tube workpiece 9 is placed on the bracket 11 of polishing module 1 and passes between the polishing wheel 12 and the guide wheel 13 to achieve surface grinding and polishing. In order to achieve the positioning of the round tube workpiece 9, the nut moving pair of the screw driver 21 in positioning module 2 drives the positioning block 22 to move. The plug 221 of the positioning block 22 is inserted into the round tube workpiece 9 and abuts against the end of the round tube workpiece 9 through the annular flange 2211. As the round tube workpiece 9 is continuously conveyed axially forward, the plug 221 rotates with the round tube workpiece 9. At the same time, the screw driver 21 adjusts the moving speed of the nut moving pair to match the conveying speed of the round tube workpiece 9, so that the positioning block 22 and the plug 221 retreat synchronously, maintaining the positioning of the round tube workpiece 9 during the conveying process, effectively ensuring the surface fine grinding quality.

[0039] Example 2

[0040] Based on the above embodiments, this embodiment further improves upon the following technical solution: a positioning groove 2222 is provided on the lower seat 222, and the connecting plate 223 is slidably connected in the positioning groove 2222.

[0041] The positioning groove 2222 positions the connecting plate 223 to prevent the connecting plate 223 from swinging.

[0042] Example 3

[0043] Based on the above embodiments, this embodiment further improves upon the following technical solution: a rubber pad 2223 is provided between the lower seat 222 and the nut moving pair.

[0044] The lower seat 222 is fixed to the nut sliding pair by adhesive bonding. The rubber pad 2223 can effectively prevent vibration from being transmitted to the nut sliding pair, thus effectively protecting the nut sliding pair.

[0045] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An automated device for fine grinding of the surface of a circular tube fitness equipment, characterized in that, include: A polishing module includes a bracket, a polishing wheel, and a guide wheel. A round tube workpiece is placed on the bracket, and the polishing wheel and the guide wheel are symmetrically arranged on both sides of the round tube workpiece. The positioning module includes a lead screw driver and a positioning block. The positioning block is fixedly mounted on the nut sliding joint of the lead screw driver. The positioning block is provided with a rotatable stop block, the position of which corresponds to the round tube workpiece. The stop block is provided with an annular retaining edge.

2. The automated surface grinding device for circular tube fitness equipment according to claim 1, characterized in that, The positioning block includes a lower seat and a connecting plate. The lower seat is fixedly mounted on the nut sliding joint, the connecting plate is detachably mounted on the lower seat, and the plug is rotatably mounted on the connecting plate.

3. The automated surface grinding device for circular tube fitness equipment according to claim 2, characterized in that, The lower seat has a waist-shaped hole, and the bolt passes through the connecting plate and the waist-shaped hole in sequence before being connected to the nut.

4. The automated surface grinding device for circular tube fitness equipment according to claim 2, characterized in that, The lower body is provided with a positioning groove, and the connecting plate is slidably connected in the positioning groove.

5. The automated surface grinding device for circular tube fitness equipment according to claim 2, characterized in that, A rubber pad is provided between the lower seat and the nut sliding pair.

6. The automated surface grinding device for circular tube fitness equipment according to claim 1, characterized in that, The end of the plug is hemispherical.

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