Vertical grinding machine of pneumatic clamping structure

Abstract

The utility model discloses a vertical grinding machine of a pneumatic clamping structure, which comprises a working table, the working table is of a rectangular block structure, a limiting support frame is arranged in the working table, a telescopic belt is arranged in a telescopic rod at the bottom end of the limiting support frame, a pipeline in butt joint with one end of an exhaust pipe is arranged at the bottom end of the telescopic belt, and the other end of the exhaust pipe is provided with a pneumatic clamping device. The exhaust pipe penetrates through the interior of the workbench; the electromagnetic valve is installed on one side of the middle of the exhaust pipe, one section of the electromagnetic valve is in butt joint with the gas storage chamber through a pipeline, the internal volume of the gas storage chamber is half of the volume of the exhaust pipe, and the exhaust pipe is in butt joint with one end of the gas inlet pipe. According to the vertical grinding machine of the pneumatic clamping structure, through cooperation of the exhaust pipe and the telescopic belt in the device, after a large part is placed on the machining table, gas in the telescopic belt is extruded into the gas inlet pipe, the sliding block is pushed through the pipeline to rapidly clamp, position and install the large part, and main limiting operation is provided for part clamping.

Description

Technical Field

[0001] The utility model relates to the technical field of vertical grinders, in particular to a vertical grinder with a pneumatic clamping structure. Background Art

[0002] A vertical grinder is a machine tool consisting of a workbench, power and transmission devices, abrasive tools and polishing wheels. It is used for outer diameter, inner diameter and surface grinding. According to the shape of the workpiece, these three tasks are performed in one clamping, thus avoiding the errors caused by multiple clampings and improving the accuracy of roundness processing between the inner diameter and the outer diameter.

[0003] In the process of processing the inner diameter and outer diameter of a large number of parts, the parts need to be clamped by multiple bolts and fixtures. Multiple processes are required for positioning and clamping before processing, which increases the preparation time and reduces work efficiency. In addition, the mutual auxiliary operation of the array bolts when the parts are clamped is easy to increase the working dead angle of the parts processing operation, increase the difficulty of processing, damage the position of the grinding head, and due to the high-speed rotation of the grinding head, the parts are easily displaced, affecting the accuracy of part processing. Utility Model Content

[0004] The purpose of the utility model is to provide a vertical grinding machine with a pneumatic clamping structure to solve the problem proposed in the above-mentioned background technology that multiple processes are required for positioning and clamping before processing, which increases the preparation time for work and reduces work efficiency, and the mutual auxiliary operation of the array bolts when used for part clamping operations is likely to increase the working dead angle of the part processing operation and increase the difficulty of processing, and the high-speed rotation of the grinding head during grinding operations is likely to cause the part to be displaced, affecting the accuracy of part processing.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a vertical grinding machine with a pneumatic clamping structure, comprising a workbench, which is arranged as a rectangular block structure, a limited support frame is arranged inside the workbench, and a telescopic belt is arranged inside the telescopic rod at the bottom end of the limited support frame, a pipe connected to one end of an exhaust pipe is arranged at the bottom end of the telescopic belt, and the exhaust pipe runs through the inside of the workbench;

[0006] A solenoid valve is installed on one side of the middle of the exhaust pipe, one section of the solenoid valve is connected to the air storage chamber through a pipeline, and the internal volume of the air storage chamber is half the volume of the exhaust pipe, the exhaust pipe is connected to one end of the intake pipe, and the other end of the intake pipe is provided with a telescopic tube, and the telescopic tube is connected to the side wall of the slider;

[0007] A positioning frame is installed on the upper end of the workbench, an airbag belt is arranged inside the positioning frame, and the airbag belt is symmetrically arranged on the side wall of the vertical table, an electric-controlled ball screw is arranged inside the vertical table, and the sliding table structure of the electric-controlled ball screw and the electric-controlled lifting and grinding head are installed by bolts.

[0008] The adoption of the above technical solution facilitates the internal structure of the device to provide a stable installation and positioning structure for working use.

[0009] Preferably, the workbench is provided with a groove structure sliding with the electric control device at the bottom of the processing table, and the workbench is provided with an annular groove engagingly connected with the limiting support frame.

[0010] By adopting the above technical solution, the working table of the device can provide a stable activity space for the displacement of the processing table.

[0011] Preferably, the bottom end of the position-limiting support frame is arranged as a two-stage telescopic tube structure, and a spring structure is wound around the surface of the telescopic belt inside the tube structure of the position-limiting support frame.

[0012] The adoption of the technical solution facilitates the circulation, extrusion and delivery of the auxiliary gas by the spring structure, and facilitates the movement of the gas.

[0013] Preferably, the solenoid valve is connected to a controller for signal connection with a contact switch arranged inside a positioning block, and the positioning block is threadedly connected inside the slider, and the positioning block is snap-connected with a clamping plate.

[0014] The above technical solution makes it easy to store excess gas for working use and to keep the internal gas stable for output use.

[0015] Preferably, the slider is symmetrically slidably connected inside the processing table, and the processing table is snap-connected inside the upper end of the limiting support frame, and the upper end of the slider is arranged parallel to the clamping plate.

[0016] The above technical solution makes it easier for the slide to cooperate with the clamping plate to quickly clamp and position the side wall of the part.

[0017] Preferably, one end of the airbag belt is butted against the output end of the circulating air pump, and the circulating air pump is installed inside the positioning frame, and a pipeline is provided inside the positioning frame to connect the input end of the circulating air pump and the other end of the airbag belt.

[0018] The above technical solution is adopted to facilitate the movable displacement of the vertical platform inside the limit frame through gas circulation assistance.

[0019] Compared with the prior art, the utility model has the following beneficial effects: the vertical grinder with the pneumatic clamping structure:

[0020] 1. When using the device, the exhaust pipe inside the device cooperates with the telescopic belt, so that after placing large parts on the processing table, the gas inside the telescopic belt is squeezed into the air intake pipe, and the slide block is pushed through the pipeline to quickly clamp and position the large parts, providing the main limit operation for part clamping;

[0021] 2. The clamping plate inside the device is connected with the positioning block according to the need, so that the curvature of the clamping plate can better fit the side wall position of the large part, so that the upper end of the processing table forms a cross shape to further limit the clamping and positioning installation of the peripheral position of the part, which is convenient for reducing the dead angle of the processing position of the electric control lifting grinding head and reducing the mutual wear between the grinding operation and the clamp during the descending process;

[0022] 3. The upper end position of the processing table is limited by the cooperation of the limit support frame and the telescopic belt inside the device, which is convenient for the auxiliary processing table to move inside the workbench, so that the slider and the positioning block can maintain the supporting force against the side wall of the part under the push of the intake pipe, thereby reducing the deviation direction during the processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the overall internal front view structure of the utility model;

[0024] Figure 2 This is a schematic diagram of the overall internal side structure of the utility model;

[0025] Figure 3 This is a schematic diagram of the overall external top view structure of the utility model;

[0026] Figure 4 For this utility model Figure 1 Enlarged structural diagram at A in the middle.

[0027] In the figure: 1. workbench; 2. limit support frame; 3. telescopic belt; 4. exhaust pipe; 5. solenoid valve; 6. air storage chamber; 7. air intake pipe; 8. processing table; 9. slider; 10. positioning block; 11. splint; 12. positioning frame; 13. air bag belt; 14. circulating air pump; 15. vertical table; 16. electric-controlled ball screw; 17. electric-controlled lifting and grinding head. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] See also Figure 1-4The utility model provides a technical solution: a vertical grinding machine with a pneumatic clamping structure, including a workbench 1, a limit support frame 2, a telescopic belt 3, an exhaust pipe 4, a solenoid valve 5, an air storage chamber 6, an air intake pipe 7, a processing table 8, a slide block 9, a positioning block 10, a clamping plate 11, a positioning frame 12, an airbag belt 13, a circulating air pump 14, a vertical table 15, an electric-controlled ball screw 16 and an electric-controlled lifting grinding head 17;

[0030] Among them, the workbench 1 is set as a rectangular block structure, a limited support frame 2 is arranged inside the workbench 1, and a telescopic belt 3 is arranged inside the telescopic rod at the bottom end of the limited support frame 2, a pipe connected to one end of the exhaust pipe 4 is arranged at the bottom end of the telescopic belt 3, and the exhaust pipe 4 runs through the inside of the workbench 1, a groove structure sliding with the electric control equipment at the bottom end of the processing table 8 is arranged inside the workbench 1, and an annular groove connected with the limited support frame 2 is arranged inside the workbench 1, the bottom end of the limited support frame 2 is set as a two-stage telescopic tube structure, and a spring structure is wound on the surface of the telescopic belt 3 inside the tube structure of the limited support frame 2;

[0031] When in use, the groove inside the workbench 1 provides a space for the rotating motor device at the bottom of the processing table 8 to move. When in use, the annular groove inside the workbench 1 provides a limit for the lifting and lowering movement of the upper end of the limit support frame 2, so that the limit support frame 2 squeezes the telescopic rod structure at the bottom during the descent process, so that the telescopic belt 3 inside the telescopic tube contracts, and the internal gas is pushed into the exhaust pipe 4 through the pipe at the bottom. Figure 1 As shown, the exhaust pipe 4 penetrates the inside of the workbench 1 to form an L-shaped air intake pipe 7 to the inside of the processing table 8, and when the limit support frame 2 is lifted, the spring structure inside the telescopic pipe assists the telescopic belt 3 to recover the gas, and the gas is withdrawn from the exhaust pipe 4 to the telescopic belt 3;

[0032] The solenoid valve 5 is installed on one side in the middle of the exhaust pipe 4. One section of the solenoid valve 5 is connected to the air storage chamber 6 through a pipeline, and the internal volume of the air storage chamber 6 is half the volume of the exhaust pipe 4. The exhaust pipe 4 is connected to one end of the intake pipe 7, and the other end of the intake pipe 7 is provided with a telescopic tube, and the telescopic tube is connected to the side wall of the slider 9. The solenoid valve 5 is connected to a controller for connecting a contact switch signal arranged inside the positioning block 10, and the positioning block 10 is threadedly connected inside the slider 9, and the positioning block 10 is clamped and connected with a clamping plate 11, the slider 9 is symmetrically slidably connected inside the processing table 8, and the processing table 8 is clamped and connected inside the upper end of the limit support frame 2, and the upper end of the slider 9 is arranged parallel to the clamping plate 11;

[0033] When in use, the control device of the solenoid valve 5 is connected to the electrical signal of the contact switch inside the positioning block 10 under electric drive. The contact switch inside the positioning block 10 is equipped with a corresponding signal transmitter when in use. The equipment is a mature product structure sold on the market, so that when the contact switch inside the positioning block 10 contacts the side wall of the large part, the solenoid valve 5 is controlled to open, and the excess gas is pushed into the gas storage chamber 6 to achieve temporary storage operations. When in use, the large part is placed on the processing table 8, so that the slider 9 at the upper end of the processing table 8, after the gas inside the exhaust pipe 4 enters the intake pipe 7, cooperates with the telescopic tube at the output end of the intake pipe 7 to push the slider 9 toward the side wall of the large part, so that the slider 9 drives the positioning block 10 that is engaged at the upper end to cooperate with the splint 11 on one side to engage with the side wall of the large part. When in use, the curvature of the splint 11 is changed as needed, so that the side wall of the splint 11 is engaged and connected with the positioning block 10, such as Figure 1 and Figure 4 As shown;

[0034] A positioning frame 12 is installed at the upper end of the workbench 1, an airbag belt 13 is arranged inside the positioning frame 12, and the airbag belt 13 is symmetrically arranged on the side wall of the vertical platform 15, an electric-controlled ball screw 16 is arranged inside the vertical platform 15, and the slide structure of the electric-controlled ball screw 16 is installed with an electric-controlled lifting grinding head 17 by bolts, one end of the airbag belt 13 is connected to the output end of the circulating air pump 14, and the circulating air pump 14 is installed inside the positioning frame 12, and a pipeline is arranged inside the positioning frame 12 to connect the input end of the circulating air pump 14 and the other end of the airbag belt 13;

[0035] When in use, the positioning frame 12 provides heightening operation for the electric ball screw 16 and the electric lifting grinding head 17, wherein the circulating air pump 14, the electric ball screw 16 and the electric lifting grinding head 17 are all mature products sold on the market. The circulating air pump 14 extracts and transports the internal gas of the air bag belts 13 located on both sides of the vertical platform 15, so that the two air bag belts 13 contract and expand, so that the air bag belts 13 push the vertical platform 15 to slide horizontally inside the positioning frame 12. Figure 2 As shown, the electric ball screw 16 inside the vertical table 15 drives the screw to rotate under the power drive, so that the slide table can be lifted up and down, and the electric lifting grinding head 17 is pushed downward to grind the parts in the center of the processing table 8, so that the output end of the electric lifting grinding head 17 is located in the middle of the processing table 8, as shown in FIG. Figure 2 As shown, the electrically controlled lifting and grinding head 17 is electrically driven and is composed of a lifting column, a stepping motor at the output end, and a grinding head, and is used to grind parts.

[0036] Working principle: When using the vertical grinder with the pneumatic clamping structure, large parts are placed on the upper end of the processing table 8, so that the weight of the upper end of the processing table 8 increases and squeezes the telescopic belt 3 inside the telescopic tube of the limit support frame 2, so that the gas enters the inside of the intake pipe 7 through the exhaust pipe 4, so that the intake pipe 7 pushes the slider 9 to slide inside the processing table 8, so that the positioning block 10 cooperates with the corresponding arc of the clamping plate 11 to clamp the side wall of the part, so that the side wall of the part contacts the contact switch inside the positioning block 10, so that the solenoid valve 5 opens to discharge the stored excess gas into the air storage chamber 6, and the circulating air pump 14 cooperates with the air bag belt 13 to contract and spit out the gas, so as to realize the lateral displacement of the vertical table 15, and cooperates with the sliding table of the electric ball screw 16 to adjust the grinding height of the electric control lifting grinding head 17, thereby increasing the overall practicality.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A vertical grinding machine with a pneumatic clamping structure, comprising a workbench (1), a solenoid valve (5) and a positioning frame (12), characterized in that: A workbench (1) is arranged as a rectangular block structure, a limited support frame (2) is arranged inside the workbench (1), a telescopic belt (3) is arranged inside the telescopic rod at the bottom end of the limited support frame (2), a pipe connected to one end of an exhaust pipe (4) is arranged at the bottom end of the telescopic belt (3), and the exhaust pipe (4) runs through the inside of the workbench (1); A solenoid valve (5) is installed on one side of the middle of the exhaust pipe (4); one end of the solenoid valve (5) is connected to the air storage chamber (6) through a pipeline, and the internal volume of the air storage chamber (6) is half the volume of the exhaust pipe (4); the exhaust pipe (4) is connected to one end of the air intake pipe (7), and the other end of the air intake pipe (7) is provided with a telescopic tube, and the telescopic tube is connected to the side wall of the slider (9); A positioning frame (12) is installed at the upper end of the workbench (1), an airbag belt (13) is arranged inside the positioning frame (12), and the airbag belt (13) is symmetrically arranged on the side wall of the vertical platform (15), an electric-controlled ball screw (16) is arranged inside the vertical platform (15), and the slide structure of the electric-controlled ball screw (16) and the electric-controlled lifting grinding head (17) are installed by bolts.

2. A vertical grinding machine with a pneumatic clamping structure according to claim 1, characterized in that: The workbench (1) is provided with a groove structure that slides with the electric control device at the bottom of the processing table (8), and the workbench (1) is provided with an annular groove that is snap-connected with the limit support frame (2).

3. The vertical grinding machine with a pneumatic clamping structure according to claim 1, characterized in that: The bottom end of the position-limiting support frame (2) is arranged as a two-stage telescopic tube structure, and a spring structure is wound around the surface of the telescopic belt (3) inside the tube structure of the position-limiting support frame (2).

4. The vertical grinding machine with a pneumatic clamping structure according to claim 1, characterized in that: The solenoid valve (5) is connected to a controller for contact switch signals arranged inside a positioning block (10), and the positioning block (10) is threadedly connected inside a slider (9), and the positioning block (10) is snap-connected with a clamping plate (11).

5. The vertical grinding machine with a pneumatic clamping structure according to claim 1, characterized in that: The slider (9) is symmetrically slidably connected inside the processing table (8), and the processing table (8) is snap-connected inside the upper end of the limiting support frame (2), and the upper end of the slider (9) is arranged parallel to the clamping plate (11).

6. The vertical grinding machine with a pneumatic clamping structure according to claim 1, characterized in that: One end of the airbag belt (13) is butt-jointed with the output end of the circulating air pump (14), and the circulating air pump (14) is installed inside the positioning frame (12), and a pipeline is provided inside the positioning frame (12) to connect the input end of the circulating air pump (14) and the other end of the airbag belt (13).

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