A metal bore polishing device

Abstract

The utility model discloses a kind of metal inner cavity polishing devices, it is related to metal polishing technical field.The utility model includes gas injection pipe, gas blowing drive assembly, pipe sleeve bending assembly and polishing head, pipe sleeve bending assembly includes fixed sleeve pipe and bending pipe, a group of buffer hoops is fixed to the outside wall axial array of gas injection pipe with sleeve, gas blowing drive assembly is set in the one end port of gas injection pipe, polishing head is sleeved in the outside of gas blowing drive assembly, fixed sleeve pipe and bending pipe are all sleeved in the outside of gas injection pipe, the side end surface of fixed sleeve pipe is hinged with the side end surface of bending pipe, the one end of gas injection pipe away from gas blowing drive assembly is connected with air compressor.The utility model drives polishing head to rotate by injecting high-pressure air into gas injection pipe, and rotating gas blowing drive assembly by high-pressure air, and the inner cavity of metal component is polished by polishing head;By bending to pipe sleeve bending assembly, gas injection pipe is bent into certain angle, and it is convenient to extend polishing head to the inner wall of metal cavity that needs to be polished.

Description

Technical Field

[0001] This utility model belongs to the field of metal polishing technology, and in particular relates to a metal internal cavity polishing device. Background Technology

[0002] After the metal components are manufactured, their inner and outer surfaces need to be polished. When polishing the inner cavity of the metal component, due to the narrow space, it is impossible to ensure that the grinding head contacts the workpiece surface at an ideal angle and with uniform pressure within the confined space. This results in uneven polishing, grooves, or ineffective removal of the target area. Furthermore, the grinding head is very easy to get stuck on the cavity wall, corner, or protrusion. The high-speed rotating angle grinder will generate huge instantaneous torque, causing the machine to rebound violently or twist violently. It is difficult for the operator to hold the machine stably in the narrow space. The machine may fly out of the operator's hand and violently impact the workpiece or the operator's body, causing serious injury. In addition, cutting the inner cavity of the metal component will generate a large amount of debris and powder. When applying protective coatings such as plating or paint to the inner cavity of the component, the residual powder will seriously affect the adhesion of the coating, causing the coating to blister and peel off.

[0003] To address these issues, we provide a metal cavity grinding device. Utility Model Content

[0004] The purpose of this invention is to provide a metal internal cavity grinding device. One end of an air injection pipe is connected to an air compressor, and an air-blowing drive assembly is installed at the other end of the air injection pipe. A grinding head is fixedly sleeved on the outside of the air-blowing drive assembly. High-pressure air is blown out through the air injection pipe, causing the high-pressure air to drive the air-blowing drive assembly to rotate, which in turn drives the grinding head to rotate. The grinding head then grinds all corners of the metal component's internal cavity. A pipe sleeve bending assembly is sleeved on the outside of the air injection pipe. The pipe sleeve bending assembly is bent at the required grinding position within the metal component's internal cavity, thereby bending the air injection pipe at a certain angle, allowing the grinding head to effectively grind the metal component's internal cavity.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model is a metal internal cavity grinding device, including an air injection pipe, an air blowing drive assembly, a pipe sleeve bending assembly, and a grinding head. The pipe sleeve bending assembly includes a fixed sleeve and a bending pipe. A set of buffer clamps are axially arrayed and fixedly sleeved on the outer wall of the air injection pipe. The air blowing drive assembly is located at one end of the air injection pipe. The grinding head is detachably sleeved on the outside of the air blowing drive assembly. The fixed sleeve and the bending pipe are both sleeved on the outside of the air injection pipe. One end face of the fixed sleeve is hinged to one end face of the bending pipe. The end of the air injection pipe away from the air blowing drive assembly is connected to an air compressor.

[0007] A further configuration of this invention is that the air-blowing drive assembly includes an air nozzle, a flow divider cone, an airflow propeller, and an outer bushing. One end of the air nozzle is fixedly fitted into the port of the air injection pipe. A set of connecting arms is circumferentially arrayed and fixed on the outer side of the outer wall of the flow divider cone. A sleeve clamp is fixedly fitted on the outer side of the set of connecting arms and fixedly fitted on the inner wall of the air nozzle. The pointed end of the flow divider cone faces the port of the air injection pipe. The propeller shaft of the airflow propeller is rotatably installed in the conical shell at the end of the flow divider cone away from the air injection pipe. The inner top surface of the outer bushing is fixedly connected to the side of the airflow propeller away from the flow divider cone. The outer bushing is fitted on the outer side of the air nozzle. A set of vent holes is opened through the bottom end face of the outer bushing. The grinding head is detachably fitted on the outer side of the outer bushing. An air outlet hole is opened through the bottom surface of the grinding head.

[0008] A further feature of this invention is that the air nozzle is integrally formed from a connecting section, an expanding section, and an outer sleeve section. The connecting section is fixedly sleeved inside the port of the air injection pipe, and the sleeve clamp is fixedly sleeved on the inner wall of the outer sleeve section.

[0009] A further feature of this invention is that an inner bearing is fixedly sleeved inside the cone shell at the end of the flow divider cone away from the air injection pipe, and the propeller shaft of the airflow propeller is fixedly sleeved on the inner wall of the inner bearing.

[0010] A further feature of this invention is that two gathering edges are fixedly arranged in an axial array on the inner wall of the outer bushing, and a set of transfer rollers are rotatably mounted in a circumferential array between the two gathering edges, with the roller surface of the transfer roller away from the inner wall of the outer bushing adhering to the outer side of the outer sleeve.

[0011] A further feature of this invention is that a pull cable end sleeve is rotatably installed on the side where the bent tube and the fixed sleeve are hinged, and a pull cable is fixedly connected to one end of the pull cable end sleeve. An internal threaded sleeve is fixedly provided on the side where the fixed sleeve and the bent tube are hinged along the length of the fixed sleeve. An adjusting screw is screwed into the internal thread of the internal threaded sleeve, and the end of the adjusting screw near the bent tube is fixedly connected to the pull cable.

[0012] A further feature of this invention is that an elastic band is fixedly installed on the end face of the bent tube away from the end sleeve of the cable, and the end of the elastic band away from the bent tube is fixedly attached to the side of the fixed sleeve.

[0013] This utility model has the following beneficial effects:

[0014] 1. This utility model connects one end of the air injection pipe to an air compressor and sets an air blowing drive assembly at the other end of the air injection pipe. A grinding head is fixedly sleeved on the outside of the air blowing drive assembly. High-pressure air is blown out through the air injection pipe, which drives the air blowing drive assembly to rotate, and the air blowing drive assembly drives the grinding head to rotate, so that the grinding head grinds all corners of the inner cavity of the metal component.

[0015] 2. This utility model involves attaching a pipe sleeve bending assembly to the outside of the air injection pipe, and bending the pipe sleeve bending assembly at the location where the inner cavity of the metal component needs to be ground, thereby bending the air injection pipe at a certain angle so that the grinding head can effectively grind the inner cavity of the metal component. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of a metal cavity grinding device.

[0018] Figure 2 This is an exploded view of the air-blowing drive assembly and the grinding head.

[0019] Figure 3 This is an exploded view of the air-blowing drive assembly.

[0020] Figure 4 This is a schematic diagram of the structure for adjusting the lead screw and the tie cable.

[0021] Figure 5 This is a schematic diagram of the structure of an elastic band and a bent tube.

[0022] The attached diagram lists the components represented by each number as follows:

[0023] 1-Injection pipe, 101-Buffer clamp, 2-Air blow drive assembly, 201-Air nozzle, 201a-Connecting section, 201b-Outer expansion section, 201c-Outer sleeve section, 202-Diverter cone, 202a-Connecting arm, 202a-1-Sleeve clamp, 202b-Inner bearing, 203-Air propeller, 204-Outer bushing, 204a-Ventilation hole, 204b-Contraction edge, 204b-1-Transfer roller, 3-Tube sleeve bending assembly, 301-Fixed sleeve, 301a-Internal threaded sleeve, 301a-1-Adjusting screw, 302-Bending pipe, 302a-Pair cable end sleeve, 302a-1-Pair cable, 302b-Elastic band, 4-Grinding head, 401-Air outlet. Detailed Implementation

[0024] 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.

[0025] Example 1

[0026] Please see Figures 1 to 3 This utility model is a metal cavity grinding device, including an air injection pipe 1, an air blowing drive assembly 2, a pipe sleeve bending assembly 3, and a grinding head 4. The pipe sleeve bending assembly 3 includes a fixed sleeve 301 and a bending pipe 302. One end of the air injection pipe 1 is connected to an air compressor, and the air blowing drive assembly 2 is set at the other end of the air injection pipe 1. The grinding head 4 is fixedly sleeved on the outside of the air blowing drive assembly 2. High-pressure air is blown out through the air injection pipe 1, causing the high-pressure air to drive the air blowing drive assembly 2 to rotate, which in turn drives the grinding head to rotate. The grinding head grinds all corners of the inner cavity of the metal component. By sleeve bending assembly 3 sleeved on the outside of the air injection pipe 1, the pipe sleeve bending assembly 3 is bent according to the required grinding position of the inner cavity of the metal component, thereby bending the air injection pipe 1 to a certain angle so that the grinding head 4 can effectively grind the inner cavity of the metal component.

[0027] Specifically, a set of buffer clamps 101 are axially arrayed and fixedly sleeved on the outer wall of the air injection pipe 1. The air blowing drive assembly 2 is set at one end port of the air injection pipe 1. The grinding head 4 is detachably sleeved on the outside of the air blowing drive assembly 2. The fixed sleeve 301 and the bent pipe 302 are both sleeved on the outside of the air injection pipe 1. One end face of the fixed sleeve 301 is hinged to one end face of the bent pipe 302. The end of the air injection pipe 1 away from the air blowing drive assembly 2 is connected to an air compressor.

[0028] Furthermore, the air-blowing drive assembly 2 includes an air nozzle 201, a flow divider cone 202, an airflow propeller 203, and an outer bushing 204. One end of the air nozzle 201 is fixedly sleeved inside the port of the air injection pipe 1. A set of connecting arms 202a is circumferentially arrayed on the outer side wall of the flow divider cone 202. A sleeve clamp 202a-1 is fixedly sleeved on the outer side of the set of connecting arms 202a. The sleeve clamp 202a-1 is fixedly sleeved on the inner wall of the air nozzle 201. The pointed end of the flow divider cone 202 faces the port of the air injection pipe 1. The propeller shaft of the airflow propeller 203 is rotatably installed in the conical shell at the end of the flow divider cone 202 away from the air injection pipe 1. The inner top surface of the bushing 204 is fixedly connected to the side of the airflow propeller 203 away from the flow divider cone 202. The outer bushing 204 is sleeved on the outside of the air nozzle 201. A set of vent holes 204a are opened through the bottom end face of the outer bushing 204. The grinding head 4 is detachably sleeved on the outside of the outer bushing 204. An air outlet hole 401 is opened through the bottom surface of the grinding head 4. High-pressure gas is injected into the air nozzle 201 from the air injection pipe 1. The high-pressure gas is blown towards the airflow propeller 203 through the flow divider cone 202, causing the airflow propeller 203 to rotate and drive the outer bushing 204 to rotate, thereby causing the grinding head 4 on the outside of the outer bushing 204 to rotate.

[0029] Furthermore, the air nozzle 201 is integrally formed from the docking section 201a, the outward expansion section 201b, and the outer sleeve section 201c. The docking section 201a is fixedly sleeved inside the port of the air injection pipe 1, and the sleeve clamp 202a-1 is fixedly sleeved on the inner wall of the outer sleeve section 201c.

[0030] Furthermore, an inner bearing 202b is fixedly sleeved inside the cone shell at the end of the flow divider cone 202 away from the air injection pipe 1, and the propeller shaft of the airflow propeller 203 is fixedly sleeved on the inner wall of the inner bearing 202b, thereby reducing the friction between the airflow propeller 203 and the inner wall of the cone shell of the flow divider cone 202 when the propeller rotates.

[0031] Furthermore, two gathering edges 204b are fixedly arranged on the inner wall axis of the outer bushing 204. A set of transfer rollers 204b-1 are rotatably mounted in a circumferential array between the two gathering edges 204b. The roller surface of the transfer roller 204b-1 away from the inner wall of the outer bushing 204 is attached to the outer side of the outer sleeve section 201c to reduce the friction between the outer bushing 204 and the outer wall of the air nozzle 201 when the outer bushing 204 rotates.

[0032] The operation process in this embodiment is as follows:

[0033] The grinding head 4 is inserted into the cavity of the metal component, and high-pressure air is injected into the air injection pipe 1. The high-pressure gas is blown to the airflow propeller 203 through the split cone 202, causing the airflow propeller 203 to rotate and drive the outer bushing 204 to rotate, thereby causing the grinding head 4 on the outside of the outer bushing 204 to rotate. The rotating grinding head 4 grinds the inner wall of the cavity of the metal component.

[0034] Example 2

[0035] Please see Figures 1 to 5 Based on Embodiment 1, a pull cable end sleeve 302a is rotatably installed on one side of the bent tube 302. A pull cable 302a-1 is fixedly connected to one side of the pull cable end sleeve 302a. An internal threaded sleeve 301a is fixedly provided on one side of the fixed sleeve 301. An adjusting screw 301a-1 is screwed into the internal thread of the internal threaded sleeve 301a. One end of the adjusting screw 301a-1 is fixedly connected to the pull cable 302a-1. By rotating the adjusting screw 301a-1, the adjusting screw 301a-1 is raised and lowered within the internal thread of the internal threaded sleeve 301a, thereby causing the pull cable 302a-1 to pull up and bend the bent tube 302.

[0036] Specifically, a pull cable end sleeve 302a is rotatably installed on the side where the bent tube 302 is hinged to the fixed sleeve 301. One end of the pull cable end sleeve 302a is fixedly connected to a pull cable 302a-1. An internal threaded sleeve 301a is fixedly provided on the side where the fixed sleeve 301 is hinged to the bent tube 302 along the length of the fixed sleeve 301. An adjusting screw 301a-1 is screwed into the internal thread of the internal threaded sleeve 301a. The end of the adjusting screw 301a-1 near the bent tube 302 is fixedly connected to the pull cable 302a-1.

[0037] Furthermore, an elastic band 302b is fixedly installed on the end face of the bent tube 302 away from the end sleeve 302a of the cable, and the end of the elastic band 302b away from the bent tube 302 is fixedly attached to the side of the fixed sleeve 301.

[0038] The operation process in this embodiment is as follows:

[0039] Rotating the adjusting screw 301a-1 causes it to rise and fall within the inner thread of the inner threaded sleeve 301a, thereby causing the pull cable 302a-1 to pull up and bend the bent tube 302; at the same time, the elastic band 302b stretches one side of the bent tube 302 and the fixed sleeve 301, thereby maintaining the bending angle of the pull cable 302a-1.

[0040] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

Claims

1. A metal lumen polishing device, comprising a gas injection tube (1), a gas blow driving assembly (2), a tube sleeve bending assembly (3) and a polishing head (4), characterized in that: The tube bending assembly (3) includes a fixed sleeve (301) and a bending tube (302). A set of buffer clamps (101) are fixedly sleeved on the outer wall of the air injection tube (1) in an axial array. The air blowing drive assembly (2) is set at one end of the air injection tube (1). The grinding head (4) is detachably sleeved on the outside of the air blowing drive assembly (2). The fixed sleeve (301) and the bending tube (302) are both sleeved on the outside of the air injection tube (1). One end face of the fixed sleeve (301) is hinged to one end face of the bending tube (302). The end of the air injection tube (1) away from the air blowing drive assembly (2) is connected to an air compressor.

2. A metal bore polishing device according to claim 1, wherein: The air-blowing drive assembly (2) includes an air nozzle (201), a flow divider cone (202), an airflow propeller (203), and an outer bushing (204). One end of the air nozzle (201) is fixedly sleeved inside the port of the air injection pipe (1). A set of connecting arms (202a) is circumferentially arrayed on the outer side wall of the flow divider cone (202). A sleeve clamp (202a-1) is fixedly sleeved on the outer side of the set of connecting arms (202a). The sleeve clamp (202a-1) is fixedly sleeved on the inner wall of the air nozzle (201). The pointed end of the flow divider cone (202) faces the air injection pipe (1). The propeller shaft of the airflow propeller (203) is rotatably installed in the conical shell at the end of the split cone (202) away from the air injection pipe (1). The inner top surface of the outer bushing (204) is fixedly connected to the side of the airflow propeller (203) away from the split cone (202). The outer bushing (204) is sleeved on the outside of the air nozzle (201). A set of vent holes (204a) is opened through the bottom end face of the outer bushing (204). The grinding head (4) is detachably sleeved on the outside of the outer bushing (204). An air outlet hole (401) is opened through the bottom surface of the grinding head (4).

3. A metal bore polishing device according to claim 2, wherein: The air nozzle (201) is integrally formed from a docking section (201a), an expanding section (201b) and an outer sleeve section (201c). The docking section (201a) is fixedly sleeved inside the port of the air injection pipe (1), and the sleeve clamp (202a-1) is fixedly sleeved on the inner wall of the outer sleeve section (201c).

4. A metal bore polishing device according to claim 3, wherein: An inner bearing (202b) is fixedly sleeved inside the cone shell at the end of the diverter cone (202) away from the air injection pipe (1), and the propeller shaft of the airflow propeller (203) is fixedly sleeved on the inner wall of the inner bearing (202b).

5. The metal internal cavity grinding device according to claim 4, characterized in that: The inner wall of the outer bushing (204) is fixed with two gathering edges (204b) in an axial array. A set of transfer rollers (204b-1) is circumferentially arranged between the two gathering edges (204b). The roller surface of the transfer roller (204b-1) away from the inner wall of the outer bushing (204) is attached to the outer side of the outer sleeve section (201c).

6. The metal internal cavity grinding device according to claim 1, characterized in that: A pull cable end sleeve (302a) is rotatably installed on the side where the bent tube (302) is hinged to the fixed sleeve (301). One end of the pull cable end sleeve (302a) is fixedly connected to a pull cable (302a-1). An internal threaded sleeve (301a) is fixedly provided on the side where the fixed sleeve (301) is hinged to the bent tube (302) along the length direction of the fixed sleeve (301). An adjusting screw (301a-1) is screwed into the internal thread of the internal threaded sleeve (301a). The end of the adjusting screw (301a-1) near the bent tube (302) is fixedly connected to the pull cable (302a-1).

7. A metal internal cavity grinding device according to claim 6, characterized in that: An elastic band (302b) is fixedly installed on the end face of the bent tube (302) away from the end sleeve (302a) of the cable. The end of the elastic band (302b) away from the bent tube (302) is fixedly attached to the side of the fixed sleeve (301).

Images