A pneumatic clamping device for drilling cylinder blocks

Abstract

This utility model relates to a pneumatic clamping device for cylinder drilling, belonging to the field of cylinder drilling technology. It includes a base plate, a cylinder support assembly, a cylinder positioning assembly, and at least two cylinder clamping assemblies. The cylinder support assembly includes a support column, and the cylinder has a central hole. The cylinder positioning assembly includes a central positioning column. The cylinder clamping assembly includes a finger-clamping block and a clamping cylinder. Under the action of the clamping cylinder, the finger-clamping block can move closer to or away from the cylinder to release it. It also includes a cylinder positioning detection mechanism, which includes a detection air hole and a detection air passage. The detection air hole axially penetrates the support column. This utility model has a simple structure and is easy to operate. Using a clamping cylinder enables automated pneumatic clamping and fixing of the cylinder without manual intervention, improving the clamping efficiency of the cylinder and detecting whether the cylinder is properly clamped, ensuring that the cylinder is clamped in place to meet the requirements of cylinder drilling quality.

Description

Technical Field

[0001] This utility model relates to a pneumatic clamping device for drilling cylinders, belonging to the field of cylinder drilling technology. Background Technology

[0002] The cylinder has three oblique holes, which are evenly distributed on the upper part of the cylinder. These oblique holes need to be machined using drilling equipment. The drilling equipment has a drill bit for drilling and a tilting rotary worktable for placing the product. The existing cylinder is mounted on the worktable of the drilling equipment using a tooling. The tilting rotary worktable can drive the tooling to rotate, which can meet the machining of oblique holes at different positions on the cylinder. The worktable can also drive the tooling to tilt, and the cylinder can tilt with the tooling to facilitate the drilling equipment to machine the oblique holes on the cylinder.

[0003] Existing tooling mostly uses manual chucks. The manual chuck is installed on the worktable, and the cylinder body is manually moved between the jaws of the chuck. Then, the chuck is manually controlled, and the jaws hold the cylinder body. Under the action of the drilling equipment, three oblique holes on the cylinder body can be machined. After the oblique holes of the cylinder body are machined, the chuck is manually released and the cylinder body is removed. Each cylinder body requires this process to complete the machining of the oblique holes. The machining is slow, the drilling efficiency is low, the labor intensity of workers is high, and the manual positioning of the cylinder body is affected by human factors. There is a possibility that the cylinder body is not properly clamped. If the cylinder body is not properly clamped and directly enters the drilling process, it will not only damage the drill bit and affect the machining quality of the cylinder body, but also pose certain safety hazards. Utility Model Content

[0004] This utility model addresses the shortcomings of existing technologies by providing a pneumatic clamping device for drilling cylinders.

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A pneumatic clamping device for drilling cylinders includes a base plate, a cylinder bearing assembly, a cylinder positioning assembly and at least two cylinder clamping assemblies disposed on the base plate.

[0006] The cylinder support assembly includes a plurality of bearing columns for supporting the cylinder, the bearing columns are disposed on the base plate, the cylinder is provided with a central hole, the cylinder positioning assembly includes a central positioning column disposed on the base plate, the central positioning column can be inserted into the central hole to position the cylinder, and the plurality of bearing columns are disposed around the central positioning column.

[0007] The cylinder pressing assembly includes a finger clamping block and a pressing cylinder for driving the finger clamping block to move. The cylinder body of the pressing cylinder is disposed on the base plate. Under the action of the pressing cylinder, the finger clamping block can move closer to the pressing cylinder body or away from the releasing cylinder body.

[0008] It also includes a cylinder block positioning detection mechanism, which includes a detection air hole and a detection air passage communicating with the detection air hole. The detection air hole axially penetrates the support column, and the detection air passage is disposed in the base plate. The base plate is provided with an air inlet communicating with one end of the detection air passage and an air outlet communicating with the other end of the detection air passage.

[0009] The beneficial effects of this utility model are as follows: The cylinder body is placed on the support column, and the central positioning column is inserted into the central hole of the cylinder body. When the pressing cylinder is activated, the clamping finger pressure block can act on the cylinder body to press it down. The detection air passage is open, and the gas enters from the air inlet and exits from the air outlet. The gas can enter the detection air hole. If the cylinder body is not pressed down properly, the gas will leak from the detection air hole. If the gas in the detection air passage leaks, the cylinder body will not be pressed down properly. If the gas in the detection air passage does not leak, the cylinder body is pressed down properly. The drilling equipment can drill holes in the cylinder body. After drilling one inclined hole, the worktable of the drilling equipment will drive the cylinder body to rotate, and the next inclined hole in the cylinder body can be processed until all the inclined holes on the cylinder body are processed. The piston rod of the pressing cylinder is reset, the clamping finger pressure block moves away from the cylinder body and releases the cylinder body. The cylinder body can be unloaded and wait for the next cylinder body to be loaded. This utility model has a simple structure and is easy to operate. The use of a clamping cylinder can realize the automatic pneumatic clamping and fixing of the cylinder body without manual intervention, which improves the clamping efficiency of the cylinder body and can detect whether the cylinder body is clamped in place, ensuring that the cylinder body is clamped in place and meets the requirements of cylinder body drilling quality.

[0010] The cylinder of the clamping device can be used with a robot for loading and unloading. The robot can place the cylinder on the base plate, and then the cylinder...

[0011] Based on the above technical solution, the present invention can be further improved as follows.

[0012] Furthermore, the plurality of supporting columns are respectively a first supporting column, a second supporting column, and a third supporting column. The detection air hole includes a first detection air hole disposed on the first supporting column and a second detection air hole disposed on the second supporting column. The detection air channel includes a first air channel and a second air channel that are connected. The first air channel and the second air channel are arranged perpendicularly. The lower end of the first detection air hole and the lower end of the second detection air hole are respectively connected to the first air channel.

[0013] The beneficial effect of adopting the above-mentioned further solution is that multiple support columns can not only support the cylinder body, but also use the inner hole of the support column to detect whether the cylinder body is properly clamped, so as to ensure that the cylinder body is properly clamped before drilling. The detection of the position does not require that all support columns have detection air holes, and the substrate does not need too many air channels, otherwise it will affect the strength of the substrate itself. Therefore, this utility model adopts setting first and second detection air holes on the first support column and the second support column. If there is no leakage when the first detection air hole and the second detection air hole are tested, the cylinder body is properly clamped and can enter the drilling process. If leakage is found in the air channel, the cylinder body is not properly clamped, and the cylinder body cannot enter the drilling operation. This solves the problem that if the cylinder body is not properly clamped, it will affect the drilling quality of the cylinder body and damage the equipment.

[0014] Furthermore, the cylinder pressing assembly also includes a drive arm and a drive connecting rod. One end of the drive arm is hinged to the piston rod of the pressing cylinder, and the other end is connected to the finger clamping block. One end of the drive connecting rod is hinged to the middle of the drive arm, and the other end is hinged to the mounting base. The mounting base is disposed on the cylinder body or base plate of the pressing cylinder.

[0015] The beneficial effect of adopting the above-mentioned further solution is that the piston rod of the clamping cylinder extends, and the drive arm can drive the clamping finger pressure block to press against the cylinder body to clamp the cylinder body, thereby achieving clamping and positioning of the cylinder body. When the piston rod of the clamping cylinder retracts, the drive arm can drive the clamping pressure block to tilt away from the cylinder body. At this time, the processed cylinder body can be removed, and the cylinder body to be drilled can be placed on the bearing column for clamping processing.

[0016] Furthermore, the drive linkage is a pair, with the pair of drive linkages located on both sides of the drive arm.

[0017] The beneficial effect of adopting the above-mentioned further solution is that the two drive linkages can not only meet the hinge requirements with the drive arm, but also avoid hindering the upward and downward movements of the drive arm.

[0018] Furthermore, the cylinder positioning assembly also includes at least one positioning pin disposed on the base plate, and the bottom of the cylinder is provided with a kidney-shaped hole, the positioning pin being able to be inserted into the kidney-shaped hole to position the cylinder.

[0019] The beneficial effect of adopting the above-mentioned further solution is that the cylinder block positioning not only uses a central positioning post to position the cylinder block, but also sets positioning pins on the periphery to facilitate accurate positioning of the cylinder block, ensure the accuracy of cylinder block positioning, and guarantee the accuracy of cylinder block drilling position.

[0020] Furthermore, there are two positioning pins, which are respectively disposed between the bearing columns.

[0021] The beneficial effect of adopting the above-mentioned further solution is that the two positioning pins are respectively inserted into the two kidney-shaped holes at the bottom of the cylinder body. One positioning pin positions one end of one kidney-shaped hole, and the other positioning pin positions the other end of the other kidney-shaped hole. The two positioning pins can achieve accurate positioning of the cylinder body.

[0022] Furthermore, the finger pressure block is made of copper.

[0023] The beneficial effect of adopting the above-mentioned further solution is that the finger-clamping block can act on the cylinder body under the action of the driving cylinder, and the copper block can effectively prevent the cylinder body from being crushed.

[0024] Furthermore, it also includes a slip ring assembly, which is disposed above the substrate and is used to prevent the wiring and air passages from getting tangled during rotation.

[0025] The beneficial effect of adopting the above-mentioned further solution is that the upper part of the cylinder has three circumferentially distributed oblique holes. During processing, the cylinder will rotate the corresponding oblique hole processing position to the position aligned with the drill bit of the drilling equipment under the action of the tilting rotary table. The clamping device involves wiring, namely the wires of the clamping cylinder, and air circuits, namely the input air circuit and the input air circuit of the clamping cylinder, as well as the air supply pipe that can be connected to the air inlet and the air outlet pipe that can be connected to the air outlet. All of these will rotate with the base plate, and the wiring and air circuits may become entangled. The problem of the required wiring and air circuits becoming entangled can be solved by using a slip ring assembly.

[0026] Furthermore, the slip ring assembly includes a slip ring bracket and a slip ring disposed on the slip ring bracket.

[0027] The beneficial effect of adopting the above-mentioned further solution is that the slip ring assembly is set above the worktable by the slip ring bracket, specifically at the rotation center of the worktable. The slip ring can be an existing pneumatic-electric combination slip ring, which can be energized and ventilated without the wiring and air circuits becoming tangled.

[0028] Furthermore, the clamping cylinder is mounted on the base plate via a cylinder gasket.

[0029] The beneficial effect of adopting the above-mentioned further solution is that there are metal shavings produced by drilling on the worktable of the drilling equipment. The cylinder gasket can raise the cylinder to be positioned, which can reduce or even avoid the bottom of the cylinder from contacting the metal shavings and prevent damage to the surface quality of the cylinder after it is pressed and comes into contact with the metal shavings. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the structure of this utility model;

[0031] Figure 2 This is a schematic diagram of the main structure of the cylinder bearing, positioning and clamping assembly of this utility model;

[0032] Figure 3 for Figure 2 A schematic diagram of the cross-sectional structure along the AA direction;

[0033] Figure 4 This is a structural schematic diagram of the fixed cylinder body of this utility model;

[0034] Figure 5 A schematic diagram of the cylinder block at angle one;

[0035] Figure 6 This is a structural schematic diagram of angle two of the cylinder block;

[0036] In the figure, 1. base plate; 2. central positioning post; 3. positioning pin; 4. first bearing post; 5. second bearing post; 6. third bearing post; 7. first air passage; 8. second air passage; 9. first detection air hole; 10. second detection air hole; 11. finger clamping block; 12. clamping cylinder; 13. drive arm; 14. drive connecting rod; 15. slip ring bracket; 16. slip ring; 17. cylinder pad block; 18. cylinder body; 181. central hole; 182. kidney-shaped hole; 183. oblique hole. Detailed Implementation

[0037] The principles and features of this utility model are described below with reference to examples. The examples are only used to explain this utility model and are not intended to limit the scope of this utility model.

[0038] like Figures 1-6 As shown, a pneumatic clamping device for drilling cylinders includes a base plate 1, a cylinder bearing assembly, a cylinder positioning assembly and at least two cylinder clamping assemblies disposed on the base plate 1.

[0039] The cylinder bearing assembly includes a plurality of bearing columns for supporting the cylinder 18. The bearing columns are disposed on the base plate 1. The cylinder 18 is provided with a central hole 181. The cylinder positioning assembly includes a central positioning column 2 disposed on the base plate 1. The central positioning column 2 can be inserted into the central hole 181 to position the cylinder 18. The plurality of bearing columns are disposed around the central positioning column 2.

[0040] The cylinder pressing assembly includes a finger clamping block 11 and a pressing cylinder 12 for driving the finger clamping block 11 to move. The cylinder body 18 of the pressing cylinder 12 is disposed on the base plate 1. Under the action of the pressing cylinder 12, the finger clamping block 11 can move closer to the pressing cylinder body 18 or away from the releasing cylinder body 18.

[0041] It also includes a cylinder block positioning detection mechanism, which includes a detection air hole and a detection air passage communicating with the detection air hole. The detection air hole axially penetrates the support column, and the detection air passage is disposed in the base plate 1. The base plate 1 is provided with an air inlet communicating with one end of the detection air passage and an air outlet communicating with the other end of the detection air passage.

[0042] The plurality of support columns are a first support column 4, a second support column 5 and a third support column 6. The detection air holes include a first detection air hole 9 disposed on the first support column 4 and a second detection air hole 10 disposed on the second support column 5. The detection air passage includes a first air passage 7 and a second air passage 8 that are connected. The first air passage 7 and the second air passage 8 are arranged perpendicularly. The lower ends of the first detection air hole 9 and the lower ends of the second detection air hole 10 are respectively connected to the first air passage 7. Multiple support columns not only support the cylinder 18, but also allow for the detection of whether the cylinder 18 is properly clamped using the inner holes of the support columns. This ensures that the cylinder 18 is properly clamped before drilling. The detection does not require all support columns to have detection vents, nor does it require excessive air passages on the substrate 1, as this would affect the strength of the substrate 1. Therefore, this invention uses first and second detection vents 10 on the first support column 4 and the second support column 5. If there is no leakage during the air passage test, the cylinder 18 is properly clamped and can proceed to the drilling process. If a leak is found in the air passage, the cylinder 18 is not properly clamped, and therefore cannot proceed to the drilling process. This solves the problem of the cylinder 18 not being properly clamped before proceeding to the subsequent drilling process, which affects the drilling quality and prevents damage to the equipment.

[0043] The cylinder clamping assembly also includes a drive arm 13 and a drive connecting rod 14. One end of the drive arm 13 is hinged to the piston rod of the clamping cylinder 12, and the other end is connected to the finger clamping block 11. One end of the drive connecting rod 14 is hinged to the middle of the drive arm 13, and the other end is hinged to the mounting base. The mounting base is disposed on the cylinder body 18 or base plate 1 of the clamping cylinder 12. When the piston rod of the clamping cylinder 12 extends, the drive arm 13 can drive the finger clamping block 11 to press against the cylinder body 18, thereby clamping the cylinder body 18 and achieving clamping and positioning of the cylinder body 18. When the piston rod of the clamping cylinder 12 retracts, the drive arm 13 can drive the clamping block to tilt away from the cylinder body 18. At this time, the processed cylinder body 18 can be removed, and the cylinder body 18 to be drilled can be placed on the bearing column for clamping processing.

[0044] The drive linkage 14 is a pair, and the pair of drive linkages 14 are located on both sides of the drive arm 13. The two drive linkages 14 can satisfy the hinge requirements with the drive arm 13, and can also avoid hindering the upward and downward movements of the drive arm 13.

[0045] The cylinder positioning assembly also includes at least one positioning pin 3 disposed on the base plate 1. The bottom of the cylinder 18 is provided with a kidney-shaped hole 182, and the positioning pin 3 can be inserted into the kidney-shaped hole 182 to position the cylinder 18. The positioning of the cylinder 18 is not only achieved by the central positioning post 2, but also by the positioning pin 3 disposed on the periphery, so as to accurately position the cylinder 18, ensure the positioning accuracy of the cylinder 18, and guarantee the accuracy of the drilling position of the cylinder 18.

[0046] Two positioning pins 3 are provided, and the two positioning pins 3 are respectively disposed between the bearing columns. The two positioning pins 3 are respectively inserted into the two kidney-shaped holes 182 at the bottom of the cylinder body 18. One positioning pin 3 positions one end of one kidney-shaped hole 182, and the other positioning pin 3 positions the other end of the other kidney-shaped hole 182. The two positioning pins 3 can achieve accurate positioning of the cylinder body 18.

[0047] The finger-clamping block 11 is made of copper. Under the action of the driving cylinder, the finger-clamping block 11 can act on the cylinder body 18, and the copper finger-clamping block 11 can effectively prevent the cylinder body 18 from being crushed.

[0048] It also includes a slip ring 16 mechanism, which is disposed above the base plate 1. The slip ring 16 mechanism is used to prevent the wiring and air passages from tangling during rotation. The upper part of the cylinder body 18 has three circumferentially distributed oblique holes 183. During processing, the cylinder body 18 will rotate to the corresponding oblique hole 183 processing position under the action of the tilting rotary table to align with the drill bit of the drilling equipment. This clamping device involves wiring, namely the wires of the clamping cylinder 12, and air passages, namely the input air passage and the air supply line that can be connected to the air inlet and the air outlet line that can be connected to the air outlet. All of these will rotate with the base plate 1, and the wiring and air passages may become tangled. The slip ring 16 mechanism can be used to solve the problem of wiring and air passage tangling.

[0049] The slip ring 16 mechanism includes a slip ring bracket 15 and a slip ring 16 mounted on the slip ring bracket 15. The slip ring 16 mechanism is mounted above the worktable via the slip ring bracket 15, specifically at the rotation center of the worktable. The slip ring 16 can be an existing pneumatic-electric combination slip ring 16, which can be energized and ventilated without the wiring or air passages becoming tangled.

[0050] The clamping cylinder 12 is mounted on the base plate 1 via a cylinder pad 17. The drilling equipment's worktable contains metal shavings generated during drilling. The cylinder pad 17 elevates the cylinder body 18 to be positioned, thus reducing or even preventing the bottom of the cylinder body 18 from contacting the metal shavings, preventing damage to its surface quality after the cylinder body 18 is clamped and comes into contact with the metal shavings.

[0051] During operation, the piston rod of the clamping cylinder 12 retracts, the actuating end of the finger clamping block 11 tilts up and moves away from the cylinder body 18 placement position, placing the cylinder body 18 on the support column. The cylinder body 18 is accurately positioned by the central positioning column 2 and two positioning pins 3. Then, the piston rod of the clamping cylinder 12 extends, and the finger clamping block 11 moves down to act on the cylinder body 18. The cylinder body clamping assembly is provided with three parts, which rely on the clamping cylinder 12 and the finger clamping block 11 to clamp the cylinder body 18, thereby achieving the effect of fixing the cylinder body 18. In order to prevent the clamping cylinder 12 from causing pressure damage to the surface of the cylinder body 18, the finger clamping block 11 that contacts the surface of the cylinder body 18 is made of copper, which can effectively prevent the cylinder body 18 from being damaged. Three clamping cylinders 12 are respectively positioned in three directions, such as the front, left, and right sides, with a reserved rear position to avoid the robot gripper, preparing for the robot's automatic loading and unloading of cylinder bodies 18. The base plate 1 is installed on the tilting rotary worktable of the drilling equipment to drill the indexing oblique holes 183 of the cylinder body 18. After one oblique hole 183 is processed, the worktable will drive the base plate 1 to rotate, turning the processing position of the next oblique hole 183 to below the drill bit. In order to prevent the rotation of the base plate 1 from causing the circuit and air circuit to become entangled, a slip ring 16 mechanism is also used. The slip ring 16 mechanism can be fixed at the center position above the drilling equipment, thereby solving the problem of circuit and air circuit entanglement. Until all the oblique holes 183 on the cylinder body 18 are processed, the processed cylinder body 18 can be removed by the robot's mechanical gripper, and the next cylinder body 18 can be loaded. This utility model has a simple structure and is easy to operate. It can realize the automated loading and unloading of cylinder 18 through robots, which improves the drilling efficiency of cylinder 18, reduces the labor intensity of workers, and ensures accurate positioning of cylinder 18, thus guaranteeing the drilling quality of cylinder 18.

[0052] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A pneumatic clamping device for drilling cylinders, characterized in that, It includes a base plate (1), a cylinder bearing assembly, a cylinder positioning assembly and at least two cylinder clamping assemblies disposed on the base plate (1); The cylinder support assembly includes a plurality of support columns for supporting the cylinder (18), the support columns are disposed on the base plate (1), the cylinder (18) is provided with a central hole (181), the cylinder positioning assembly includes a central positioning column (2) disposed on the base plate (1), the central positioning column (2) can be inserted into the central hole (181) to position the cylinder (18), and the plurality of support columns are disposed around the central positioning column (2); The cylinder pressing assembly includes a finger clamping block (11) and a pressing cylinder (12) for driving the finger clamping block (11) to move. The cylinder body (18) of the pressing cylinder (12) is disposed on the base plate (1). Under the action of the pressing cylinder (12), the finger clamping block (11) can move closer to the pressing cylinder body (18) or away from the releasing cylinder body (18). It also includes a cylinder positioning detection mechanism, which includes a detection air hole and a detection air passage communicating with the detection air hole. The detection air hole axially penetrates the bearing column, and the detection air passage is disposed in the base plate (1). The base plate (1) is provided with an air inlet communicating with one end of the detection air passage and an air outlet communicating with the other end of the detection air passage.

2. The pneumatic hold down device for cylinder bore drilling according to claim 1, characterized in that, The plurality of support columns are a first support column (4), a second support column (5) and a third support column (6). The detection air hole includes a first detection air hole (9) disposed on the first support column (4) and a second detection air hole (10) disposed on the second support column (5). The detection air channel includes a first air channel (7) and a second air channel (8) that are connected. The first air channel (7) and the second air channel (8) are arranged perpendicularly. The lower end of the first detection air hole (9) and the lower end of the second detection air hole (10) are connected to the first air channel (7).

3. The pneumatic hold down device for cylinder bore drilling according to claim 1, characterized by, The cylinder pressing assembly also includes a drive arm (13) and a drive connecting rod (14). One end of the drive arm (13) is hinged to the piston rod of the pressing cylinder (12), and the other end is connected to the finger clamping block (11). One end of the drive connecting rod (14) is hinged to the middle of the drive arm (13), and the other end is hinged to the mounting base. The mounting base is disposed on the cylinder body (18) or base plate (1) of the pressing cylinder (12).

4. The pneumatic clamping device for drilling cylinder blocks according to claim 3, characterized in that, The drive linkages (14) are a pair, and the pair of drive linkages (14) are located on both sides of the drive arm (13).

5. The pneumatic compacting device for cylinder bore according to any one of claims 1 to 4, characterized in that The cylinder positioning assembly further includes at least one positioning pin (3) disposed on the base plate (1). The bottom of the cylinder (18) is provided with a kidney-shaped hole (182). The positioning pin (3) can be inserted into the kidney-shaped hole (182) to position the cylinder (18).

6. The pneumatic hold down device for cylinder bore drilling according to claim 5, characterized by There are two positioning pins (3), and the two positioning pins (3) are respectively disposed between the bearing columns.

7. The pneumatic hold down device for cylinder bore drilling according to claim 1, characterized by, The finger-pressing block (11) is made of copper.

8. The pneumatic hold down device for cylinder bore drilling according to any one of claims 1 to 4, characterized in that, Also included is a slip ring assembly arranged above the base plate (1), which is used to prevent the winding of the circuit and air path when rotating.

9. The pneumatic clamping device for drilling cylinder blocks according to claim 8, characterized in that, The slip ring assembly includes a slip ring support (15) and a slip ring (16) arranged on the slip ring support (15).

10. The pneumatic hold down device for cylinder bore drilling according to claim 1, characterized by, The compression cylinder (12) is arranged on the base plate (1) through a cylinder cushion block (17).

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