A rough grinding device for the outer circle of a hollow piston rod

Abstract

The utility model relates to hollow piston rod processing technical field, concretely relates to a kind of rough grinding equipment for hollow piston rod external circle, including shell, the outer wall bottom end of shell is equipped with support, the inner wall bottom end of shell is equipped with the polishing wheel that carries out rough grinding to hollow piston rod external circle in both sides, the inside of shell and located the front end of polishing wheel are all equipped with the fixed component that carries out the fixing to hollow piston rod external circle, the fixed component includes first threaded slide, in the utility model, by inserting hollow piston rod to the outer wall of plug rod, then starting air pump to inflate hollow rod, so that the ejector rod is elongated to outside under the action of piston, so it can be tightly fixed from the outer wall inner wall of hollow piston rod, and different sizes of hollow piston rod can be fixed in a certain range by this way, and the fixing mode is simple and convenient, without frequent installation and disassembly.

Description

Technical Field

[0001] This utility model relates to the field of hollow piston rod processing technology, specifically to a rough grinding device for the outer diameter of a hollow piston rod. Background Technology

[0002] A hollow piston rod is a type of piston rod that is hollow and commonly used in hydraulic and pneumatic systems. Its hollow internal structure offers several advantages, including reduced weight, easier lubrication and fluid transport via internal piping, lower material costs, and reduced overall inertia. However, after rough machining, the outer wall of a hollow piston rod may have burrs, scratches, or uneven areas. Therefore, rough grinding equipment is needed to treat the outer wall to facilitate subsequent processing and production of the hollow piston rod.

[0003] Existing coarse grinding equipment requires fixing the hollow piston rod in a suitable position before coarse grinding the outer circle of the hollow piston rod by controlling the grinding wheel to move and contact with it. However, most existing coarse grinding equipment clamps and fixes the hollow piston rod from both ends. Although this fixing method is simple and convenient, it requires the diameter and length of the hollow piston rod to be compatible, resulting in certain limitations in its applicability. Therefore, it has certain shortcomings.

[0004] In conclusion, it is necessary to invent a rough grinding device for the outer diameter of a hollow piston rod. Utility Model Content

[0005] Therefore, this utility model provides a rough grinding device for the outer circle of a hollow piston rod, in order to solve the problem that although this fixing method is simple and convenient, it requires the diameter and length of the hollow piston rod to be compatible, resulting in certain limitations in its applicability.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a rough grinding device for the outer circle of a hollow piston rod, comprising a housing, a bracket installed at the bottom of the outer wall of the housing, and grinding wheels for rough grinding the outer circle of the hollow piston rod provided on both sides of the bottom of the inner wall of the housing, and fixing components for fixing the outer circle of the hollow piston rod provided inside the housing and at the front end of the grinding wheels.

[0007] The fixing component includes a first threaded slide block, a telescopic side plate is installed at the bottom of the outer wall of the first threaded slide block, and a plug rod is rotatably connected to the bottom of one side of the outer wall of the telescopic side plate.

[0008] Preferably, both sides of the outer wall of the grinding wheel are connected to a support frame via a rotating shaft, and a first rotary motor that drives the grinding wheel to rotate in both directions is fixed on one side of the outer wall of the support frame.

[0009] Preferably, each of the outer walls of the support frame is fixed with a second threaded slide block, and each of the brackets has a strip-shaped clearance groove at a position corresponding to the second threaded slide block. The outer wall of the second threaded slide block is slidably connected to the inner wall of the strip-shaped clearance groove.

[0010] Preferably, a second ball screw is provided at the bottom of the outer wall of the bracket and on both the front and rear sides of the strip-shaped clearance groove. The two ends of the second ball screw are connected to the front and rear sides of the bottom of the outer wall of the bracket through bearing seats. A motor for driving the second ball screw to rotate in both directions is fixed at one end of the bearing seat.

[0011] Preferably, the outer walls of the first threaded slide are threadedly connected to the first ball screw through threaded holes on both sides. The outer walls of the first ball screw are rotatably connected to the upper sides of the inner walls of the housing through bearing seats. A drive motor for driving the first ball screw to rotate in both directions is fixed to the outer wall side of the housing.

[0012] Preferably, the top of the outer wall of the first threaded slide is slidably connected to the top of the inner wall of the housing at a corresponding position via a fixed positioning slide. The telescopic side plate has a two-section structure, and each side of the telescopic side plate away from the insertion rod is fixed with an electrically controlled push rod for driving the telescopic side plate to close.

[0013] Preferably, a second rotary motor for driving the insertion rod to rotate is fixed at the bottom of the outer wall side end of the telescopic side plate and on the side away from the insertion rod. A hollow rod is fixed on the inner wall of the insertion rod. Sleeves are evenly arranged in an array on the outer wall side end of the insertion rod. The bottom end of the sleeves is connected to the inner wall side end of the hollow rod through a pipe.

[0014] Preferably, a top rod is slidably connected to the inner wall of the sleeve rod on the side away from the insertion rod, and a reset spring for resetting is sleeved on the outer wall of the top rod and inside the sleeve rod.

[0015] Preferably, a vent is fixedly connected to the top of the outer wall of the hollow rod and the side near the telescopic side plate. A control valve is fixedly connected to the vent. An air pump is installed on the top of the outer wall of the housing. An air supply hose is fixedly connected to the air outlet of the air pump. The bottom end of the air supply hose is fixedly connected to the top of the vent in a detachable manner.

[0016] The beneficial effects of this utility model are:

[0017] In this invention, a hollow piston rod is inserted into the outer wall of a plug rod, and then an air pump is started to inflate the hollow rod, causing the top rod to extend outward under the action of the piston. This allows the hollow piston rod to be pressed and fixed from the outer and inner walls. In this way, hollow piston rods of different sizes can be fixed within a certain range. The fixing method is simple and convenient, and does not require frequent installation and disassembly, making it more convenient to install and use. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the external structure of the present invention viewed from the front.

[0019] Figure 2 This is a partial cross-sectional view of the present invention from the front view.

[0020] Figure 3 This is a partial structural schematic diagram of the grinding wheel in this utility model from a side view.

[0021] Figure 4 This is a cross-sectional view of the insertion rod in the present invention from the front view direction;

[0022] Figure 5 This is a cross-sectional view of the sleeve rod in the front view direction of this utility model;

[0023] Figure 6 This is a three-dimensional structural diagram of the sleeve rod in this utility model.

[0024] In the diagram: 100, housing; 110, bracket; 200, first ball screw; 210, first threaded slide; 220, positioning slide; 230, drive motor; 240, air pump; 300, grinding wheel; 310, support frame; 320, first rotary motor; 330, second threaded slide; 340, second ball screw; 400, telescopic side plate; 410, electrically controlled push rod; 420, second rotary motor; 430, insertion rod; 431, hollow rod; 440, sleeve rod; 441, top rod; 442, return spring; 450, vent. Detailed Implementation

[0025] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0026] See attached document Figures 1-6This utility model provides a rough grinding device for the outer diameter of a hollow piston rod, comprising a housing 100, a bracket 110 mounted on the bottom of the outer wall of the housing 100, and grinding wheels 300 for rough grinding the outer diameter of the hollow piston rod on both sides of the bottom of the inner wall of the housing 100. Support frames 310 are connected to both sides of the outer wall of the grinding wheels 300 via rotating shafts. A first rotary motor 320 for driving the grinding wheels 300 to rotate in both directions is fixed on one side of the outer wall of the support frame 310. The support frame 310 supports both sides of the grinding wheels 300, and the first rotary motor 320 drives the grinding wheels 300 to rotate after being powered on, so that the grinding wheels 300 can perform rough grinding when in contact with the outer wall of the hollow piston rod. A second threaded slide block 330 is fixed to the bottom of the outer wall of the support frame 310. 110 has a strip-shaped clearance groove at a position corresponding to the second threaded slide 330. The outer wall of the second threaded slide 330 is slidably connected to the inner wall of the strip-shaped clearance groove. A second ball screw 340 is provided at the bottom of the outer wall of the bracket 110 and on the front and rear sides of the strip-shaped clearance groove. The two ends of the second ball screw 340 are connected to the front and rear sides of the bottom of the outer wall of the bracket 110 through bearing seats. A motor that drives the second ball screw 340 to rotate in both directions is fixed at one end of the bearing seat. The motor can be energized to drive the second ball screw 340 to rotate. When the second ball screw 340 rotates, it can drive the support frame 310 to move through the second threaded slide 330, thereby adjusting the position of the grinding wheel 300 so that the grinding wheel 300 can better perform rough grinding on the outer wall of the hollow piston rod.

[0027] Inside the housing 100 and at the front end of the grinding wheel 300, there are fixing components for fixing the outer circle of the hollow piston rod. The fixing components include a first threaded slide 210. The outer walls of the first threaded slide 210 are threadedly connected to the first ball screw 200 through threaded holes. The outer walls of the first ball screw 200 are rotatably connected to the upper sides of the inner walls of the housing 100 through bearing seats. A drive motor 230 for driving the first ball screw 200 to rotate forward and backward is fixed to the side of the outer wall of the housing 100. The top of the outer wall of the first threaded slide 210 is slidably connected to the top of the inner wall of the housing 100 at the corresponding position through a fixed positioning slide 220. The drive motor 230 can drive the first ball screw 200 to rotate forward and backward after being powered on, so that the first ball screw 200 can drive the first threaded slide 210 to move the telescopic side plate 400 left and right when rotating. The top of the inner wall of the housing 100 is slidably connected to the positioning slide 220 through a guide rail.

[0028] A telescopic side plate 400 is installed at the bottom of the outer wall of the first threaded slide block 210. A rod 430 is rotatably connected to the bottom of one side of the outer wall of the telescopic side plate 400. The telescopic side plate 400 has a two-section structure. An electrically controlled push rod 410 for driving the telescopic side plate 400 to close is fixed on the side of the telescopic side plate 400 away from the rod 430. The telescopic side plate 400 can slide up and down, thereby adjusting the height of the rod 430. A first threaded slide block 410 is fixed at the bottom of the outer wall of the telescopic side plate 400, on the side away from the rod 430, for driving the rod 430 to rotate. Two rotary motors 420, a hollow rod 431 fixed to the inner wall of the insertion rod 430, and sleeve rods 440 evenly arranged in an array on the outer side of the insertion rod 430. The bottom end of the sleeve rod 440 is connected to the inner side of the hollow rod 431 through a pipe. A top rod 441 is slidably connected to the inner wall of the sleeve rod 440 away from the insertion rod 430. A piston is fixed to the end of the top rod 441 that is inserted into the sleeve rod 440, and a top block is fixed to the outer side of the top rod 441. Personnel can insert the insertion rod 430 into the inner wall of the hollow piston rod, and then control it. The push rod 441 can be slid outward to abut against the inner wall of the hollow piston rod, thereby fixing the hollow piston rod. A reset spring 442 is fitted on the outer wall of the push rod 441 and inside the sleeve rod 440. The reset spring 442 is designed to retract the push rod 441 after the hollow rod 431 is vented, making it easier for personnel to remove the hollow piston rod from the side end of the insertion rod 430. A vent 450 is fixedly connected to the top of the outer wall of the hollow rod 431, near the telescopic side plate 400. A [missing information - likely a device or component] is fixedly connected to the vent 450. The control valve has an air pump 240 installed on one side of the top of the outer wall of the housing 100. The air outlet of the air pump 240 is fixedly connected to an air supply hose. The bottom end of the air supply hose is detachably fixed to the top of the vent 450. Specifically, the air pump 240 can be connected to the vent 450 through the air supply hose. Then, the valve on the vent 450 is opened, and the air pump 240 is started to inflate the hollow rod 431, so that the push rod 441 can slide outward under the action of the piston, thereby pressing against the inner wall of the hollow piston rod.

[0029] The usage process of this utility model is as follows: Those skilled in the art can first assemble the device according to the above description, then connect all electrical equipment to an external power supply, and control the operation of the device through an external controller. The control programs of all electrical equipment are edited by the production personnel in advance before production. This utility model does not make any technical improvements here, but only assumes that it can normally meet the needs of personnel.

[0030] Specifically, the operator can remove the hollow piston rod to be ground and fit its inner wall onto the outer wall of the insertion rod 430. Then, the operator can remove the air supply hose from the air pump 240 and connect the air supply hose to the air inlet 450. The valve on the air inlet 450 is then opened, and the air pump 240 is started to inflate the hollow rod 431, allowing the push rod 441 to slide outwards under the action of the piston, thus pressing against the inner wall of the hollow piston rod. The control valve is then tightened, and the air supply hose is removed. After confirming that the hollow piston rod is securely fixed, the operator can power on the motor to drive the second ball screw 340 to rotate, thereby moving the grinding wheel 300 to the appropriate position. Then, the first rotary motor 320 is powered to drive the grinding wheel 300 to rotate. Simultaneously, the first threaded slide 210 is powered to rotate the first ball screw 200, allowing the positioning slide 220 to extend... The retractable side plate 400 drives the hollow piston rod to move towards the grinding wheel 300. At the same time, the second rotary motor 420 is also energized, driving the insertion rod 430 and the hollow piston rod to rotate. After the outer wall of the grinding wheel 300 contacts the outer wall of the hollow piston rod, it can grind the hollow piston rod. The rotating hollow piston rod allows the grinding wheel 300 to grind more areas of the outer wall of the hollow piston rod. During the grinding process, a coolant spray pipe can be set at the rear end of the outer wall of the housing 100, corresponding to the position of the grinding wheel 300, to continuously spray coolant to the contact position between the grinding wheel 300 and the hollow piston rod. After the personnel confirm that the grinding is completed, the device can be reset. Then, the valve on the vent 450 is opened to release the air. Then, the return spring 442 causes the top rod 441 to retract and reset. Then, the personnel can pull out the hollow piston rod from the outer wall side of the insertion rod 430 for replacement.

[0031] The above description is merely a preferred embodiment of this utility model. Any person skilled in the art may modify this utility model or modify it into an equivalent technical solution using the technical solutions described above. Therefore, any simple modifications or equivalent substitutions made based on the technical solutions of this utility model are within the scope of protection claimed by this utility model.

Claims

1. A rough grinding device for the outer diameter of a hollow piston rod, characterized in that: Includes a housing (100), a bracket (110) is installed at the bottom of the outer wall of the housing (100), and grinding wheels (300) for rough grinding the outer circle of the hollow piston rod are provided on both sides of the bottom of the inner wall of the housing (100). Fixing components for fixing the outer circle of the hollow piston rod are provided inside the housing (100) and at the front end of the grinding wheels (300). The fixing component includes a first threaded slide (210), a telescopic side plate (400) is installed on the bottom of the outer wall of the first threaded slide (210), a plug rod (430) is rotatably connected to the bottom of one side of the outer wall of the telescopic side plate (400), a second rotary motor (420) is fixed on the bottom of the outer wall of the telescopic side plate (400) away from the plug rod (430) to drive the plug rod (430) to rotate, a hollow rod (431) is fixed on the inner wall of the plug rod (430), and the outer wall of the plug rod (430) is evenly arranged in an array. There is a sleeve rod (440), the bottom end of which is connected to the inner wall side of the hollow rod (431) through a pipe. The top of the outer wall of the hollow rod (431) and the side near the telescopic side plate (400) are fixedly connected to a vent (450). A control valve is fixedly connected to the vent (450). An air pump (240) is installed on the top of the outer wall of the housing (100). The air outlet of the air pump (240) is fixedly connected to an air delivery hose. The bottom end of the air delivery hose is fixedly connected to the top of the vent (450) in a detachable manner.

2. The rough grinding equipment for the outer diameter of a hollow piston rod according to claim 1, characterized in that: Both sides of the outer wall of the grinding wheel (300) are connected to support frames (310) via rotating shafts. A first rotary motor (320) that drives the grinding wheel (300) to rotate in both directions is fixed on one side of the outer wall of the support frame (310).

3. The rough grinding equipment for the outer diameter of a hollow piston rod according to claim 2, characterized in that: The bottom of the outer wall of the support frame (310) is fixed with a second threaded slide (330). The bracket (110) is provided with a strip-shaped clearance groove at the position corresponding to the second threaded slide (330). The outer wall of the second threaded slide (330) is slidably connected to the inner wall of the strip-shaped clearance groove.

4. A rough grinding device for the outer diameter of a hollow piston rod according to claim 3, characterized in that: A second ball screw (340) is provided at the bottom of the outer wall of the bracket (110) and on the front and rear sides of the strip-shaped clearance groove. The two ends of the second ball screw (340) are connected to the front and rear sides of the bottom of the outer wall of the bracket (110) through bearing seats. A motor that drives the second ball screw (340) to rotate in both directions is fixed at one end of the bearing seat.

5. A rough grinding device for the outer diameter of a hollow piston rod according to claim 1, characterized in that: The outer walls of the first threaded slide (210) are threadedly connected to the first ball screw (200) through threaded holes. The outer walls of the first ball screw (200) are rotatably connected to the upper sides of the inner walls of the housing (100) through bearing seats. The outer wall side of the housing (100) is fixed with a drive motor (230) that drives the first ball screw (200) to rotate in both directions.

6. A rough grinding device for the outer diameter of a hollow piston rod according to claim 5, characterized in that: The top of the outer wall of the first threaded slide block (210) is slidably connected to the top of the inner wall of the housing (100) at the corresponding position through the fixed positioning slide block (220). The telescopic side plate (400) has a two-section structure. The side of the telescopic side plate (400) away from the insertion rod (430) is fixed with an electrically controlled push rod (410) for driving the telescopic side plate (400) to close.

7. A rough grinding device for the outer diameter of a hollow piston rod according to claim 1, characterized in that: A top rod (441) is slidably connected to the inner wall of the sleeve rod (440) and the side away from the insert rod (430). A reset spring (442) for resetting is sleeved on the outer wall of the top rod (441) and inside the sleeve rod (440).

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