Open conveying type narrow abrasive belt grinding machine tool for double-sided bidirectional grinding of welding spots

Abstract

The utility model relates to an open conveying type narrow abrasive belt grinding machine tool for double-sided bidirectional grinding of a welding spot, which comprises a rack, and an upper triangular narrow abrasive belt grinding machine head and a lower triangular narrow abrasive belt grinding machine head are respectively arranged on the upper portion of the rack and opposite to each other. A conveying platform is arranged on one side between the upper triangular narrow abrasive belt grinding machine head and the lower triangular narrow abrasive belt grinding machine head, and the upper triangular narrow abrasive belt grinding machine head and the lower triangular narrow abrasive belt grinding machine head are driven by a driving motor through a transmission mechanism. The method has the advantages that operation is easy, efficiency is high, and the welding spot grinding efficiency can be greatly improved; secondly, the device is suitable for welding spot grinding of various materials and has higher universality; thirdly, the open type conveying mode is particularly suitable for welding spot grinding of closed circular ring type welding workpieces; and fourthly, the grinding surface precision is high, and the machining requirements of high-quality machined parts can be met.

Description

Technical Field

[0001] The utility model relates to an open conveyor belt abrasive belt grinding machine dedicated to double-sided and two-way grinding of welding points, which can achieve high-efficiency and high-quality grinding of welding points of welded parts such as closed rings in a closed state, and belongs to the field of manufacturing of abrasive belt grinding machines. Background Art

[0002] CN216802903U, named "A vertical abrasive belt grinding device", includes a workbench, on which a grinding motor, a motor drive wheel, a telescopic rod and a roller table are arranged. The grinding motor is in transmission connection with the motor drive wheel. The telescopic rod is connected with an abrasive belt tensioning wheel. A rubber roller is arranged on the roller table. An abrasive belt is arranged between the motor drive wheel, the abrasive belt tensioning wheel and the rubber roller. A grinding backing plate is arranged on the workbench. Its disadvantages are that it cannot complete double-sided and two-way grinding of double-sided welding points. Summary of the Invention

[0003] Design purpose: To avoid the deficiencies in the background art, design an open conveyor belt abrasive belt grinding machine dedicated to double-sided and two-way grinding of welding points of welded parts such as closed rings, which can achieve high-efficiency and high-quality grinding of welding points in a closed state.

[0004] Design solution: To achieve the above design objectives, the following design solutions are adopted in the present utility model: 1. The design of the double-sided triangular narrow abrasive belt transmission mechanism is one of the technical features of the present utility model. The purpose of this design is that since the double-sided triangular narrow abrasive belt transmission mechanism is composed of an upper triangular narrow abrasive belt grinding head and a lower triangular narrow abrasive belt grinding head, the upper and lower narrow abrasive belt grinding heads rotate at high speed driven by a driving motor, and then drive the upper narrow abrasive belt on the upper and lower narrow abrasive belt grinding heads to rotate at high speed, quickly grinding the welding points on both sides of the workpiece to be ground conveyed between the double-sided triangular narrow abrasive belts. Secondly, since the grinding surfaces of the double-sided triangular narrow abrasive belt transmission mechanism are respectively provided with abrasive belt pressing plates with pressing plate mechanisms, the abrasive belt pressing plates play a role in supporting the abrasive belt (supporting the back of the abrasive belt when passing through), and can keep the grinding surface of the abrasive belt passing through its surface in a horizontal state. The horizontal abrasive belt grinding surfaces on two opposite sides ensure that while the welding points on both sides of the workpiece to be ground are quickly ground, the grinding accuracy is maintained and the purpose of efficient grinding is achieved. 2. The design of the pressing plate mechanism is the second technical feature of the present invention. The purpose of this design is that the pressing plate mechanism is composed of an upper pressing plate mechanism and a lower pressing plate mechanism with the same structure; the upper and lower pressing plate mechanisms are composed of a cylinder, a cylinder seat, a graphite pad swing plate, a linear guide rail, a linear slider and a compression spring. The cylinder is fixed on the cylinder seat, the side of the cylinder seat is fixed on the linear slider and can move along the linear guide rail. One end of the bottom surface of the cylinder seat is connected to the graphite pad swing plate through a hinge ear, and the other end forms an elastic fit with the graphite pad swing plate through a compression spring. The graphite pad swing plate mainly plays a role in lubricating and compensating the back of the abrasive belt. The symmetric arrangement design of the upper and lower pressing plate mechanisms can make the upper annular narrow abrasive belt and the lower annular narrow abrasive belt closely adhere to the upper and lower surfaces of the workpiece to be processed, achieving the purpose of improving the grinding efficiency. 3. The design of proximity switches is provided on both sides of the narrow abrasive belt, which is the third technical feature of the present invention. The purpose of this design is that when the deviation of the narrow abrasive belt touches the proximity switch, the machine can stop instantly to adjust the abrasive belt, avoiding the occurrence of phenomena such as the abrasive belt slipping off the roller and being damaged caused by the deviation of the abrasive belt, and ensuring the personal safety of the operator.

[0005] Technical solution: An open-conveyor narrow abrasive belt grinding machine for double-sided and two-way grinding of welding points includes a machine frame. An upper triangular narrow abrasive belt grinding head and a lower triangular narrow abrasive belt grinding head are respectively provided on the upper part and the opposite side of the machine frame. One side between the upper triangular narrow abrasive belt grinding head and the lower triangular narrow abrasive belt grinding head is a conveying platform. The upper triangular narrow abrasive belt grinding head and the lower triangular narrow abrasive belt grinding head are driven by a driving motor through a transmission mechanism.

[0006] Compared with the background technology, the present utility model has the following advantages: First, it is simple to operate and has high efficiency, which can greatly improve the grinding efficiency of welding points; second, it is applicable to the grinding of welding points of various materials and has high versatility; third, the open-conveyor method is especially suitable for the grinding of welding points of welded workpieces such as closed rings; fourth, the grinding surface has high precision and can meet the processing requirements of high-quality workpieces. Brief Description of the Drawings

[0007] Figure 1 It is a three-dimensional schematic diagram of an open conveyor narrow belt grinding machine for double-sided and two-way grinding of solder joints.

[0008] Figure 2 It is Figure 1 The front view structural schematic diagram.

[0009] Figure 3 It is Figure 1 The right view structural schematic diagram.

[0010] Figure 4 It is Figure 1 The schematic diagram of the double-sided grinding mechanism in the middle.

[0011] Figure 5 It is the schematic diagram of the pressing plate mechanism. Detailed Implementation Manner

[0012] Example 1: Refer to the attached Figures 1-5 . An open conveyor narrow belt grinding machine for double-sided and two-way grinding of solder joints includes a frame 1. An upper triangular narrow belt grinding head 4 and a lower triangular narrow belt grinding head 2 are respectively arranged on the upper part and the opposite side of the frame 1. The composition of the belt grinding head is prior art and will not be described here. On one side between the upper triangular narrow belt grinding head 4 and the lower triangular narrow belt grinding head 2 is a conveying platform 7. The function of this conveying platform 7 is to place the workpiece to be processed on it and manually feed it into the double-sided grinding surface formed by the double-sided triangular narrow belts for grinding. The upper triangular narrow belt grinding head 4 and the lower triangular narrow belt grinding head 2 are driven by a driving motor 3 through a transmission mechanism. The upper triangular narrow belt grinding head 4 and the lower triangular narrow belt grinding head 2 respectively consist of a driving wheel 10, a driven wheel 9, and a tensioning wheel 12 to form a double-sided triangular narrow belt transmission mechanism. Two narrow belts 8 are respectively sleeved on the triangular narrow belt transmission mechanisms. One end of two belt tensioning devices 5 is respectively connected to the axle of the tensioning wheel 12, and the other end is respectively connected to the frame 1. One end of two pressing plate mechanisms 6 is respectively connected to the narrow belt pressing surface, and the other end is connected to the frame 1. The belt tensioning device 5 is a tensioning cylinder. The pressing plate mechanism 6

[0013] Proximity switches 11 are arranged on both sides of the narrow belt. When the narrow belt runs off track and touches the proximity switches 11, the proximity switches command the driving motor 3 to stop. When the off-track narrow belt is reset, the driving motor 3 is started to work.

[0014] Double-sided grinding method for an open conveyor narrow abrasive belt grinding machine for double-sided and two-way grinding of solder joints. The workpiece is fed into a double-sided grinding mechanism composed of an upper triangular narrow abrasive belt grinding head 4 and a lower triangular narrow abrasive belt grinding head 2 through a conveying platform 7. While the abrasive belt driving motor on the double-sided grinding mechanism drives the high-speed rotation, the solder on the surface of the workpiece is directly ground off to obtain a workpiece with the required surface accuracy and finish.

[0015] It should be understood that although the above embodiments have made a relatively detailed written description of the design concept of the present invention, these written descriptions are only simple written descriptions of the design concept of the present invention, rather than limitations on the design concept of the present invention. Any combination, addition or modification that does not exceed the design concept of the present invention falls within the protection scope of the present invention.

Claims

1. An open conveyor type narrow belt grinding machine for double-sided and bidirectional grinding of welds, comprising a frame (1), characterized in that: An upper triangular narrow belt grinding head (4) and a lower triangular narrow belt grinding head (2) are respectively arranged on the upper part and opposite to the frame (1); a conveying platform (7) is located on one side between the upper triangular narrow belt grinding head (4) and the lower triangular narrow belt grinding head (2); the upper triangular narrow belt grinding head (4) and the lower triangular narrow belt grinding head (2) are driven by a driving motor (3) through a transmission mechanism.

2. The open conveyor type narrow belt grinding machine for double-sided and bidirectional grinding of welding spots according to claim 1 is characterized in that: The upper triangular narrow belt grinding machine head (4) and the lower triangular narrow belt grinding machine head (2) are respectively composed of a driving wheel (10), a driven wheel (9), and a tensioning wheel (12) to form a double-sided triangular narrow belt transmission mechanism. The two narrow belts (8) are respectively sleeved on the triangular narrow belt transmission mechanism. One end of the two belt tensioning devices (5) is respectively connected to the wheel axle of the tensioning wheel (12) and the other end is respectively connected to the frame (1). One end of the two pressing plate mechanisms (6) is respectively connected to the narrow belt pressing plate surface and the other end is connected to the frame (1).

3. The open conveyor type narrow belt grinding machine for double-sided and bidirectional grinding of welding spots according to claim 2 is characterized in that: The sanding belt tensioning device (5) is a tensioning cylinder.

4. The open conveyor type narrow belt grinding machine for double-sided and bidirectional grinding of welding spots according to claim 2 is characterized in that: The pressure plate mechanism (6) is composed of an upper pressure plate mechanism and a lower pressure plate mechanism of the same structure; the upper and lower pressure plate mechanisms are composed of a cylinder (62), a cylinder seat (63), a graphite pad rocker plate (65), a linear guide rail (66), a linear slide block (61) and a compression spring (64); the cylinder (62) is fixed on the cylinder seat (63); the side of the cylinder seat (63) is fixed on the linear slide block; one end of the bottom surface of the cylinder seat (63) is connected to the graphite pad rocker plate (65) through a hinge ear, and the other end forms an elastic fit with the graphite pad rocker plate (65) through a compression spring (64).

5. The open conveyor type narrow belt grinding machine for double-sided and bidirectional grinding of welding spots according to claim 1, characterized in that: A proximity switch (11) is provided on one side of the narrow abrasive belt.

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