Automatic centering clamp with lubricating function

Abstract

The utility model provides an automatic centering clamp with a lubricating function. The automatic centering clamp comprises a guide part, a guide groove is formed in the guide part, two clamping blocks are connected in the guide groove in a sliding mode, a transmission piece is arranged between the two clamping blocks, and the clamping blocks are connected with the transmission piece in a sliding mode. A driving piece is arranged on the guide part and is connected with the transmission block; lateral oil distribution grooves are respectively formed in two sides of the clamping block, and a bottom oil distribution groove is formed in the bottom of the clamping block; an oil guide channel is arranged in the clamping block and communicated with the bottom oil distribution groove and the side oil distribution groove, one end of the oil guide channel is an oil inlet end, and an oil inlet connector is arranged at the oil inlet end. Lubricating oil flows into the lateral oil distribution grooves and the bottom oil distribution grooves after passing through the oil guide channels, so that lubricating oil films are formed between the two sides and the bottom faces of the clamping blocks and the inner walls of the guide grooves, good lubrication is formed between the clamping blocks and the inner walls of the guide grooves, abrasion between the clamping blocks and the inner walls of the guide grooves in the moving process is reduced, and the service life of the clamping blocks is prolonged. And the clamping precision of the clamp is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of clamps, in particular to an automatic centering clamp with a lubrication 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, the existing centering clamps have the following problems: reliable and long-lasting lubrication cannot be maintained between the clamp block and the inner wall of the guide groove, resulting in severe wear between the clamp block and the inner wall of the guide groove due to the frequent movement of the clamp block during use, which in turn causes an increase in the fitting clearance between the clamp block and the guide groove, a decrease in the movement accuracy of the clamp block, and ultimately affects the clamping accuracy of the clamp. Summary of the invention

[0004] The utility model aims to solve the deficiencies in the prior art and provide an automatic centering clamp with a lubrication function.

[0005] The purpose of the utility model is achieved through the following technical solutions: an automatic centering clamp with lubrication function, comprising a guide component, a guide groove is provided on the guide component, two clamping blocks are slidably connected in the guide groove, a transmission member is provided between the two clamping blocks, and the clamping blocks are slidably connected to the transmission member; a driving member is provided on the guide component, the driving member is connected to the transmission block, and the two clamping blocks are driven to move in opposite directions by the driving member;

[0006] Side oil distribution grooves are respectively provided on both sides of the clamping block, and a bottom oil distribution groove is provided at the bottom of the clamping block; an oil guide channel is provided in the clamping block, the oil guide channel is connected with the bottom oil distribution groove and the side oil distribution groove, one end of the oil guide channel is the oil inlet end, and an oil inlet joint is provided on the oil inlet end.

[0007] In the utility model, the oil inlet joint is connected to the lubricating oil pump through an oil pipe, and the lubricating oil can be input into the oil guide channel through the lubricating oil pump. After passing through the oil guide channel, the lubricating oil will flow into the side oil distribution groove and the bottom oil distribution groove, so that a lubricating oil film is formed between the two sides of the clamp block and the bottom surface and the inner wall of the guide groove, so that good lubrication is formed between the clamp block and the inner wall of the guide groove, reducing the wear between the clamp block and the inner wall of the guide groove when moving, ensuring the movement accuracy of the clamp block, and then ensuring the clamping accuracy of the clamp. Lubricating oil is regularly input into the oil guide channel through the lubricating oil pump, so that lasting and reliable lubrication is formed between the clamp block and the inner wall of the guide groove.

[0008] Preferably, the oil guide channel includes a first oil channel, a second oil channel and a third oil channel, the oil inlet joint is arranged at one end of the first oil channel, the second oil channel is connected to the first oil channel, one end of the second oil channel is connected to the bottom oil distribution groove, one end of the third oil channel is connected to the second oil channel, and one end of the third oil channel is connected to the side oil distribution groove.

[0009] Preferably, a sliding tenon is provided on the clamping block, and sliding grooves are symmetrically provided on both sides of the transmission member. The sliding grooves are inclined, and the sliding tenon is connected to the sliding grooves.

[0010] Preferably, the driving member comprises a cylinder body, a piston chamber is provided in the cylinder body, a piston is provided in the piston chamber, a piston is connected to the piston, and an end of the piston rod away from the piston extends out of the cylinder body and is connected to the transmission member.

[0011] Preferably, the guide component is provided with a piston rod through hole through which the piston rod can pass.

[0012] Preferably, the cylinder body is fixedly connected to the guide component via cylinder body connecting screws.

[0013] Preferably, the transmission member is fixedly connected to one end of the piston rod via a transmission member connecting screw.

[0014] Preferably, a cover plate is connected to the guide component, and the cover plate is located above the middle of the guide groove.

[0015] Preferably, a joint groove corresponding to the oil inlet joint is provided on the clamping block, and the oil inlet joint is located in the joint groove.

[0016] The beneficial effects of the utility model are as follows: in the utility model, the oil inlet joint is connected to the lubricating oil pump through the oil pipe, and the lubricating oil can be input into the oil guide channel through the lubricating oil pump. After passing through the oil guide channel, the lubricating oil will flow to the side oil distribution grooves and the bottom oil distribution grooves, so that a lubricating oil film is formed on both sides of the clamping block and between the bottom surface and the inner wall of the guide groove, thereby forming good lubrication between the clamping block and the inner wall of the guide groove, reducing the wear between the clamping block and the inner wall of the guide groove when moving, ensuring the movement accuracy of the clamping block, and then ensuring the clamping accuracy of the clamp. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the utility model.

[0018] Figure 2 It is a cross-sectional view of the utility model.

[0019] Figure 3 A schematic diagram of the structure of a guide component in one direction.

[0020] Figure 4 A schematic diagram of the structure showing another direction of the guide component.

[0021] Figure 5 It is a schematic diagram of the transmission member and the clamping block.

[0022] Figure 6 It is a structural schematic diagram of the transmission parts.

[0023] Figure 7 This is a schematic diagram of the structure of the clamp in one direction.

[0024] Figure 8 It is a schematic diagram of the structure of the clamp in another direction.

[0025] Fig. 9 A cross-sectional view of the clamping block.

[0026] In the figure: 1. Guide component, 1-1. Guide groove, 1-2. Piston rod through hole, 1-3. Cover plate connecting screw hole, 1-4. Cylinder body connecting screw hole, 2. Clamp, 2-1. Sliding tenon, 2-2. Expansion screw hole, 2-3. Side oil distribution groove, 2-4. Bottom oil distribution groove, 2-5. First oil channel, 2-6. Second oil channel, 2-7. Third oil channel, 2-8. Joint groove, 3. Drive member, 3-1. Cylinder body, 3-2. Piston chamber, 3-3. Piston, 3-4. Piston rod, 4. Cover plate, 5. Cover plate connecting screw, 6. Oil inlet joint, 7. Transmission member, 7-1. Slide groove, 7-2. Transmission member connecting screw through hole, 8. Transmission member connecting screw, 9. Cylinder body connecting screw. DETAILED DESCRIPTION

[0027] 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.

[0028] like Figures 1 to 9 As shown, an automatic centering clamp with lubrication function comprises a guide component 1, a guide groove 1-1 is provided on the guide component 1, two clamping blocks 2 are slidably connected in the guide groove 1-1, a transmission member 7 is provided between the two clamping blocks 2, and the clamping blocks 2 are slidably connected to the transmission member 7; a driving member 3 is provided on the guide component 1, the driving member 3 is connected to the transmission block, and the two clamping blocks 2 are driven to move in opposite directions by the driving member 3; side oil distribution grooves 2-3 are respectively provided on both sides of the clamping block 2, and a bottom oil distribution groove 2-4 is provided at the bottom of the clamping block 2; an oil guide channel is provided in the clamping block 2, and the oil guide channel is connected with the bottom oil distribution groove 2-4 and the side oil distribution groove 2-3, one end of the oil guide channel is the oil inlet end, and an oil inlet joint 6 is provided on the oil inlet end.

[0029] In the utility model, the oil inlet joint 6 is connected to the lubricating oil pump through an oil pipe, and the lubricating oil can be input into the oil guide channel through the lubricating oil pump. After passing through the oil guide channel, the lubricating oil will flow into the side oil distribution groove 2-3 and the bottom oil distribution groove 2-4, so that a lubricating oil film is formed between the two sides and the bottom surface of the clamping block 2 and the inner wall of the guide groove 1-1, so that good lubrication is formed between the clamping block 2 and the inner wall of the guide groove 1-1, reducing the wear between the clamping block 2 and the inner wall of the guide groove 1-1 when moving, ensuring the movement accuracy of the clamping block 2, and then ensuring the clamping accuracy of the clamp. Lubricating oil is regularly input into the oil guide channel through the lubricating oil pump, so that a lasting and reliable lubrication is formed between the clamping block 2 and the inner wall of the guide groove 1-1.

[0030] The oil guide passage includes a first oil passage 2-5, a second oil passage 2-6 and a third oil passage 2-7, an oil inlet joint 6 is arranged at one end of the first oil passage 2-5, the second oil passage 2-6 is communicated with the first oil passage 2-5, one end of the second oil passage 2-6 is communicated with the bottom oil distribution groove 2-4, one end of the third oil passage 2-7 is communicated with the second oil passage 2-6, and one end of the third oil passage 2-7 is communicated with the side oil distribution groove 2-3. The first oil passage 2-5 and the second oil passage 2-6 are perpendicular to each other, and the second oil passage 2-6 and the third oil passage 2-7 are perpendicular to each other.

[0031] The clamp block 2 is provided with a sliding tenon 2-1, and the two sides of the transmission member 7 are symmetrically provided with a slide groove 7-1, the slide groove 7-1 is inclined, and the sliding tenon 2-1 is connected to the slide groove 7-1. In this embodiment, the angle between the slide groove 7-1 on the transmission member 7 and the horizontal plane is 60 degrees.

[0032] The driving member 3 drives the transmission member 7 to move, and when the transmission member 7 moves, it drives the clamping blocks 2 on both sides to move in opposite directions, so that the clamping blocks 2 on both sides are close to or away from each other, thereby clamping or loosening the workpiece. It is worth mentioning that the moving direction of the transmission member 7 is perpendicular to the moving direction of the clamping block 2.

[0033] Further, the driving member 3 includes a cylinder body 3-1, a piston chamber 3-2 is provided in the cylinder body 3-1, a piston 3-3 is provided in the piston chamber 3-2, a piston rod 3-4 is connected to the piston 3-3, and one end of the piston rod 3-4 away from the piston 3-3 extends out of the cylinder body 3-1 and is connected to the transmission member 7. The guide member 1 is provided with a piston rod through hole 1-2 through which the piston rod 3-4 can pass.

[0034] The cylinder body 3-1 is fixedly connected to the guide component 1 through the cylinder body connecting screw 9. The guide component 1 is provided with a cylinder body connecting screw hole 1-4, and the cylinder body 3-1 is provided with a cylinder body connecting screw 9 through hole for the cylinder body connecting screw 9 to pass through. The cylinder body connecting screw 9 passes through the cylinder body connecting screw 9 through hole on the cylinder body 3-1 and is connected to the cylinder body connecting screw hole 1-4 on the guide component 1.

[0035] The transmission member 7 is fixedly connected to one end of the piston rod 3-4 through a transmission member connecting screw 8. The transmission member 7 is provided with a transmission member connecting screw through hole 7-2, and the transmission member connecting screw 8 passes through the transmission member connecting screw through hole 7-2 and is threadedly connected to the end of the piston rod 3-4.

[0036] The guide component 1 is connected with a cover plate 4, which is located above the middle of the guide groove 1-1. The cover plate 4 is connected to the guide component 1 through a cover plate connecting screw 5. The guide component 1 is provided with a cover plate connecting screw hole 1-3, and the cover plate connecting screw 5 passes through the cover plate 4 and is connected to the cover plate connecting screw hole 1-3. The cover plate 4 can prevent the chips generated during the workpiece processing from falling into the guide groove 1-1.

[0037] The clamp block 2 is provided with a joint groove 2-8 corresponding to the oil inlet joint 6, and the oil inlet joint 6 is located in the joint groove 2-8. The oil inlet joint 6 is located in the groove, and the oil inlet joint 6 does not protrude from the end surface of the clamp block 2, which can play a certain protective role on the oil inlet joint 6.

[0038] An expansion screw hole 2-2 is provided on the clamping block 2. Expansion components such as a fixed clamping plate can be installed on the clamping block 2 through the expansion screw hole 2-2 to meet the clamping requirements of different modes.

[0039] 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. An automatic centering clamp with lubrication function, characterized in that: It comprises a guide component, a guide groove is provided on the guide component, two clamping blocks are slidably connected in the guide groove, a transmission component is provided between the two clamping blocks, and the clamping blocks are slidably connected to the transmission component; a driving component is provided on the guide component, and the driving component is connected to the transmission block, and the two clamping blocks are driven to move in opposite directions by the driving component; Side oil distribution grooves are respectively provided on both sides of the clamping block, and a bottom oil distribution groove is provided at the bottom of the clamping block; an oil guide channel is provided in the clamping block, the oil guide channel is connected with the bottom oil distribution groove and the side oil distribution groove, one end of the oil guide channel is the oil inlet end, and an oil inlet joint is provided on the oil inlet end.

2. The automatic centering clamp with lubrication function according to claim 1, characterized in that: The oil guide channel includes a first oil channel, a second oil channel and a third oil channel. The oil inlet joint is arranged at one end of the first oil channel. The second oil channel is connected to the first oil channel. One end of the second oil channel is connected to the bottom oil distribution groove. One end of the third oil channel is connected to the second oil channel. One end of the third oil channel is connected to the side oil distribution groove.

3. The automatic centering clamp with lubrication function according to claim 1, characterized in that: The clamping block is provided with a sliding tenon, and two sides of the transmission member are symmetrically provided with sliding grooves, the sliding grooves are inclined, and the sliding tenon is connected to the sliding grooves.

4. An automatic centering clamp with lubrication function according to any one of claims 1 to 3, characterized in that: The driving member comprises a cylinder body, a piston cavity is arranged in the cylinder body, a piston is arranged in the piston cavity, a piston is connected to the piston, and an end of the piston rod away from the piston extends out of the cylinder body and is connected to the transmission member.

5. The automatic centering clamp with lubrication function according to claim 4, characterized in that: The guide component is provided with a piston rod through hole through which the piston rod can pass.

6. The automatic centering clamp with lubrication function according to claim 4, characterized in that: The cylinder body is fixedly connected to the guide component via cylinder body connecting screws.

7. The automatic centering clamp with lubrication function according to claim 4, characterized in that: The transmission member is fixedly connected to one end of the piston rod through a transmission member connecting screw.

8. An automatic centering clamp with lubrication function according to any one of claims 1 to 3, characterized in that: The guide component is connected with a cover plate, which is located above the middle of the guide groove.

9. An automatic centering clamp with lubrication function according to any one of claims 1 to 3, characterized in that: The clamping block is provided with a joint groove corresponding to the oil inlet joint, and the oil inlet joint is located in the joint groove.

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