Centering clamp with blowing and scrap removing functions

Abstract

The utility model provides a centering clamp with blowing and scrap removing functions. The centering clamp comprises a clamp body, a guide groove is formed in the clamp body, two movable clamping blocks are connected in the guide groove, a gas channel is formed in each clamping block, grooves are formed in the two sides of each clamping block respectively, a gas inlet connector is arranged at one end of each gas channel, and the other end of each gas channel is communicated with the corresponding groove. The gas inlet connector is connected with a gas supply device, and the gas supply device is used for introducing compressed gas into the gas channel. When the chip removing device is used for removing chips, compressed gas with a certain pressure is introduced into the gas channel through the gas supply device, the compressed gas is blown into the gap between the clamping block and the inner wall of the guide groove after passing through the gas channel and then is blown out through the gap, and the chips embedded in the gap are blown out through the gas pressure. Therefore, the situation that the clamping blocks move unsmoothly and even are blocked due to the fact that cuttings exist in the gaps is prevented, and meanwhile the situation that the clamping precision of the centering clamp is reduced due to the fact that the clamping blocks are seriously abraded due to the cuttings is also avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of clamps, in particular to a centering clamp with an air blowing and chip removal function. Background Art

[0002] In the field of mechanical processing, it is usually necessary to fix the workpiece by a clamp before processing the workpiece. Among them, the centering clamp is a commonly used clamp, which includes a clamp body part, a guide groove is provided on the body part, and two relatively movable clamps are slidably connected in the guide groove. The two clamps are driven to move in opposite directions by air pressure or oil pressure as power, so that the two clamps are close to or away from each other, thereby achieving the clamping or loosening of the workpiece.

[0003] However, when the existing workpiece is subjected to machining (such as chip cutting, milling, etc.), a large amount of chips will be generated during the machining process. Some fine chips will fall onto the clamp and embed into the gap between the slider, the clamp block and the guide groove, making the clamp block move poorly, increasing the resistance when the clamp block moves, and even causing the clamp block to get stuck; and the presence of chips in the gap will cause more serious wear on the clamp block surface or the guide groove surface when the clamp block moves, causing the gap between the clamp block and the guide groove to become larger, thereby affecting the clamping accuracy of the centering clamp. Summary of the invention

[0004] The utility model aims to solve the deficiencies in the prior art and provide a centering clamp with an air blowing and chip removing function.

[0005] The purpose of the utility model is achieved through the following technical scheme: a centering clamp with air blowing and chip removal function, comprising a clamp body, a guide groove is provided on the clamp body, two movable clamping blocks are connected in the guide groove, a gas channel is provided in the clamping block, grooves are provided on both sides of the clamping block, an air inlet joint is provided at one end of the gas channel, and the other end of the gas channel is connected to the groove; the air inlet joint is connected to the air supply device, and the air supply device is used to introduce compressed gas into the gas channel.

[0006] In the utility model, the two clamping blocks on the clamp body can be moved closer to or farther from each other, thereby achieving clamping or loosening of the workpiece. The air supply device can be an air pump. When the utility model is performing chip removal, compressed gas of a certain pressure is introduced into the gas channel through the air supply device, and the compressed gas is blown into the gap between the clamping block and the inner wall of the guide groove after passing through the gas channel, and then blown out through the gap. The chips embedded in the gap are blown out by the gas pressure, thereby preventing the clamping block from moving smoothly or even getting stuck due to the presence of chips in the gap, and also avoiding the clamping block from being seriously worn due to the chips, thereby reducing the clamping accuracy of the centering clamp.

[0007] Preferably, the gas channel includes a first gas channel section, a second gas channel section and a third gas channel section, the gas inlet joint is arranged at one end of the first gas channel section, the other end of the first gas channel section is connected to the second gas channel section, the second gas channel section is connected to the third gas channel section, and the third gas channel section is connected to the groove.

[0008] Preferably, one end of the second gas channel section passes through the bottom surface of the clamping block.

[0009] Preferably, the first gas channel segment is perpendicular to the second gas channel segment, and the second gas channel segment is perpendicular to the third gas channel segment.

[0010] Preferably, a piston cavity is provided in the clamp body, a piston is provided in the piston cavity, a piston is provided on the piston, one end of the piston rod extends from the piston cavity and is provided with a transmission block, and slide grooves are symmetrically provided on both sides of the transmission block; two clamping blocks are respectively located on both sides of the transmission block; a sliding tenon is provided on the clamping block, and the sliding tenon is slidably connected to the slide groove on the transmission block.

[0011] Preferably, the clamping block is provided with a threaded hole.

[0012] Preferably, a cover plate is connected to the clamp body, and the cover plate is located above the middle of the guide groove.

[0013] The beneficial effect of the utility model is that when the chip is removed, the compressed gas of a certain pressure is introduced into the gas channel through the gas supply device. The compressed gas is blown into the gap between the clamp block and the inner wall of the guide groove after passing through the gas channel, and then blown out through the gap. The chips embedded in the gap are blown out by the gas pressure, thereby preventing the clamp block from moving smoothly or even getting stuck due to the presence of chips in the gap, and also avoiding the clamp block from being seriously worn due to the chips, thereby reducing the clamping accuracy of the centering clamp. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the utility model.

[0015] Figure 2 It is a cross-sectional view of the utility model.

[0016] Figure 3 This is a schematic diagram of the structure of the utility model without the clamping block and the cover plate.

[0017] Figure 4 It is the structural diagram of the transmission block.

[0018] Figure 5 This is a schematic diagram of the transmission block and the clamping block being connected.

[0019] Figure 6 It is a schematic diagram of the structure of the clamping block.

[0020] Figure 7 A cross-sectional view of the clamping block.

[0021] In the figure: 1. clamp body, 1-1. piston chamber, 1-2. guide groove, 2. clamp block, 2-1. threaded hole, 2-2. groove, 2-3. first gas channel section, 2-4. second gas channel section, 2-5. third gas channel section, 2-6. sliding tenon, 3. cover plate, 4. air inlet connector, 5. piston rod, 6. piston, 7. transmission block, 7-1. slide groove. DETAILED DESCRIPTION

[0022] 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 belong to the scope of protection of the utility model.

[0023] like Figures 1 to 7 As shown, a centering clamp with air blowing and chip removal function includes a clamp body 1, a guide groove 1-2 is provided on the clamp body 1, two movable clamping blocks 2 are connected in the guide groove 1-2, a gas channel is provided in the clamping block 2, grooves 2-2 are respectively provided on both sides of the clamping block 2, an air inlet connector 4 is provided at one end of the gas channel, and the other end of the gas channel is connected to the groove 2-2; the air inlet connector 4 is connected to the air supply device, and the air supply device is used to introduce compressed gas into the gas channel.

[0024] In the utility model, the two clamping blocks 2 on the clamp body 1 can be moved closer to or farther from each other, thereby achieving clamping or loosening of the workpiece. The air supply device can be an air pump. When the utility model is performing chip removal, compressed gas of a certain pressure is introduced into the gas channel through the air supply device. The compressed gas passes through the gas channel and is blown into the gap between the clamping block 2 and the inner wall of the guide groove 1-2, and then blown out through the gap. The chips embedded in the gap are blown out by the gas pressure, thereby preventing the clamping block 2 from moving smoothly or even getting stuck due to the presence of chips in the gap, and also avoiding the clamping block 2 from being severely worn due to the chips, thereby reducing the clamping accuracy of the centering clamp.

[0025] The gas channel includes a first gas channel section 2-3, a second gas channel section 2-4 and a third gas channel section 2-5, the gas inlet joint 4 is arranged at one end of the first gas channel section 2-3, the other end of the first gas channel section 2-3 is connected to the second gas channel section 2-4, the second gas channel section 2-4 is connected to the third gas channel section 2-5, and the third gas channel section 2-5 is connected to the groove 2-2. The first gas channel section 2-3 is perpendicular to the second gas channel section 2-4, and the second gas channel section 2-4 is perpendicular to the third gas channel section 2-5.

[0026] One end of the second gas channel section 2-4 passes through the bottom surface of the clamp block 2. A portion of the compressed gas can be blown into the gap between the bottom surface of the clamp block 2 and the bottom surface of the guide groove 1-2 through the second gas channel section 2-4, thereby blowing out the cuttings or other solid particles that fall into the gap.

[0027] Furthermore, a piston cavity 1-1 is provided in the clamp body 1, a piston 6 is provided in the piston cavity 1-1, a piston rod 5 is provided on the piston 6, one end of the piston rod 5 extends out from the piston cavity 1-1 and is provided with a transmission block 7, and slide grooves 7-1 are symmetrically provided on both sides of the transmission block 7; two clamping blocks 2 are respectively located on both sides of the transmission block 7; a sliding tenon 2-6 is provided on the clamping block 2, and the sliding tenon 2-6 is slidably connected to the slide groove 7-1 on the transmission block 7.

[0028] The slide groove 7-1 on the transmission block 7 is arranged obliquely, and the angle between the slide groove 7-1 on the transmission block 7 and the horizontal plane is 60 degrees. The piston 6 is driven to move up and down by introducing a certain pressure of hydraulic oil into the piston chamber 1-1. When the piston 6 moves, the transmission block 7 is driven to move. When the transmission block 7 moves, the clamping blocks 2 on both sides thereof are driven to move in opposite directions, thereby achieving the clamping or loosening of the workpiece.

[0029] The clamp block 2 is provided with a threaded hole 2-1. Through the threaded hole 2-1, expansion components such as a fixed clamping plate can be installed on the clamp block 2 to meet the clamping requirements of different methods.

[0030] A cover plate 3 is connected to the clamp body 1, and the cover plate 3 is located above the middle of the guide groove 1-2. The cover plate 3 is fixed to the clamp body 1 by bolts. By arranging the cover plate 3 above the middle of the guide groove 1-2, the cover plate 3 can prevent chips from falling into the guide groove 1-2.

[0031] The present utility model is not limited to the above-mentioned optimal implementation mode. Anyone can derive other various forms of products under the inspiration of the present utility model. However, no matter what changes are made in the shape or structure, all those having the same or similar technical solutions as the present application fall within the protection scope of the present utility model.

Claims

1. The centering clamp with air blowing and chip removal function is characterized by: It includes a clamp body, which is provided with a guide groove, in which two movable clamping blocks are connected, a gas channel is provided in the clamping block, and grooves are provided on both sides of the clamping block. An air inlet joint is provided at one end of the gas channel, and the other end of the gas channel is connected to the groove; the air inlet joint is connected to the air supply device, and the air supply device is used to introduce compressed gas into the gas channel.

2. The centering clamp with air blowing and chip removal function according to claim 1 is characterized in that: The gas channel includes a first gas channel section, a second gas channel section and a third gas channel section, the gas inlet joint is arranged at one end of the first gas channel section, the other end of the first gas channel section is connected to the second gas channel section, the second gas channel section is connected to the third gas channel section, and the third gas channel section is connected to the groove.

3. The centering clamp with air blowing and chip removal function according to claim 2 is characterized in that: One end of the second gas channel section passes through the bottom surface of the clamping block.

4. The centering clamp with air blowing and chip removal function according to claim 2 is characterized in that: The first gas channel segment is perpendicular to the second gas channel segment, and the second gas channel segment is perpendicular to the third gas channel segment.

5. The centering clamp with air blowing and chip removal function according to any one of claims 1 to 4, characterized in that: A piston cavity is provided in the clamp body, a piston is provided in the piston cavity, a piston rod is provided on the piston, one end of the piston rod extends out of the piston cavity and is provided with a transmission block, and sliding grooves are symmetrically provided on both sides of the transmission block; two clamping blocks are respectively located on both sides of the transmission block; a sliding tenon is provided on the clamping block, and the sliding tenon is slidably connected to the sliding groove on the transmission block.

6. The centering clamp with air blowing and chip removal function according to any one of claims 1 to 4, characterized in that: The clamping block is provided with a threaded hole.

7. The centering clamp with air blowing and chip removal function according to any one of claims 1 to 4, characterized in that: The clamp body is connected with a cover plate, which is located above the middle of the guide groove.

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