Drilling and pin pressing device for swash plate of plunger pump

Abstract

The invention relates to the technical field of plunger pump swash plate machining, in particular to a plunger pump swash plate drilling and pin pressing device which comprises a machining platform, a lifting module is arranged on one side of the top of the machining platform, a procedure adjusting mechanism is installed on the lifting module, and a swash plate clamping mechanism is arranged at the top of the machining platform. A pin pressing mechanism is arranged on the top of the machining platform. The four procedures of drilling, rough grinding, semi-accurate grinding and accurate grinding can be completed in sequence through the procedure adjusting mechanism, the procedures of drilling and grinding are integrated on one station, positioning errors caused by procedure conversion are avoided, a set of machining motors can independently drive different machining tool bits through the transmission changing mechanism, the transmission structure is simplified, and the machining efficiency is improved. Meanwhile, a tool does not need to be replaced during machining, the machining efficiency is improved, the arranged pin pressing pretreatment mechanism is used for cleaning a drilled hole and coating lubricating oil before pin pressing, the situation that the pin pressing quality is affected by impurity residues is avoided, and meanwhile friction between a pin shaft and a pin shaft hole during pin pressing is reduced by coating the lubricating oil.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of machining of swash plate of plunger pump, and particularly relates to a drilling and pin pressing device for swash plate of plunger pump. BACKGROUND

[0002] The plunger pump is one of the most important power elements in the hydraulic system, and its core feature is to change the volume of the sealed working cavity by the reciprocating movement of the plunger in the cylinder hole, so as to realize oil suction and oil pressing. It is the pump with the best performance, the highest power density and the highest pressure among all hydraulic pumps, but also the pump with the most complex structure, the highest manufacturing precision requirement and the highest cost. During the oil suction process, when the plunger moves backward, the volume of the sealed working cavity increases, forming a local vacuum, and the oil in the oil tank is opened under the action of atmospheric pressure, and enters the sealed cavity. When the plunger moves forward, the volume of the sealed working cavity decreases, and the oil in the cavity is squeezed, the pressure rises, and the oil is transported to the hydraulic system; the swash plate inside the swash plate type plunger pump directly converts the rotary motion of the driving shaft into the reciprocating motion of the plunger, which is the key to realizing oil suction and oil pressing, and is also the core of the variable displacement pump to realize displacement regulation. During the machining process of the swash plate of the plunger pump, a hole needs to be drilled in the side wall of the swash plate and a fixing pin needs to be pressed in. Although the existing drilling and pin pressing device for the swash plate of the plunger pump can basically meet the daily use requirements, there are multiple steps such as drilling, rough grinding, fine grinding and pressing during the drilling and pin pressing in the actual production process. Positioning errors are accumulated during the conversion between processes, which affects the quality of the swash plate finally produced. Therefore, it is necessary to design a drilling and pin pressing device for the swash plate of the plunger pump. SUMMARY

[0003] The purpose of the present application is to provide a drilling and pin pressing device for the swash plate of the plunger pump with simple structure and reasonable design to solve the above problems.

[0004] The present application achieves the above-mentioned purpose through the following technical solutions: The drilling and pin pressing device for the swash plate of the plunger pump comprises a machining platform, a lifting module is arranged on one side of the top of the machining platform, a process adjusting mechanism is installed on the lifting module, a swash plate clamping mechanism is arranged on the top of the machining platform, a pin pressing mechanism is arranged on the top of the machining platform, and a pin pressing pretreatment mechanism is arranged on the machining platform. The lifting module comprises a mounting frame fixed on the machining platform, a control cabinet is arranged on one side of the mounting frame, a control module is arranged in the control cabinet, a lifting screw is rotatably connected to the mounting frame, and a lifting table is arranged on the lifting screw. The process adjusting mechanism comprises an upper housing fixed on the lifting platform, an adjusting motor fixedly installed on the inner wall of the upper housing, a lower housing fixedly connected to the output end of the adjusting motor, and the lower housing is rotationally connected to the bottom of the upper housing, a support sleeve is fixedly arranged in the lower housing, and a support plate symmetrically arranged on the inner wall of the support sleeve is rotationally connected to a driven shaft, a transmission groove is formed in the bottom of the driven shaft, and a transmission changing mechanism is arranged in the lower housing.

[0005] As a further optimization scheme of the application, the transmission changing mechanism comprises a changing motor fixed in the support sleeve, a cam sleeve fixedly connected to the output end of the changing motor, a side slot formed in the side wall of the cam sleeve, and one end of the side slot slidingly connected to a butt joint sleeve, and the butt joint sleeve slidingly connected in a limiting frame arranged in the support sleeve.

[0006] As a further optimization scheme of the application, the butt joint sleeve is rotationally connected to a butt joint column, the lower end of the butt joint column is slidingly connected in a slot formed in the top of a rotating sleeve, the rotating sleeve is rotationally connected in the support sleeve, a drilling support column is slidingly connected in a groove formed in the bottom of the rotating sleeve, a machining tool bit is fixedly installed at the bottom end of the drilling support column, a pressing plate is rotationally connected to the drilling support column, the pressing plate is fixed to the output end of a pressing cylinder, and the pressing cylinder is symmetrically installed at the bottom of the support sleeve.

[0007] As a further optimization scheme of the application, a transmission belt is wound around the driven shaft, and the transmission belt is wound around a center wheel, the bottom end of the center wheel is rotationally connected to the cam sleeve, the top of the center wheel is connected to the output end of a machining motor through a belt wheel and a belt, and the machining motor is fixed to the outside of the support sleeve.

[0008] As a further optimization scheme of the application, the pressing pin pretreatment mechanism comprises a pretreatment support fixed on the machining platform, a treatment motor fixedly installed on the top of the pretreatment support, a square bar fixedly connected to the output end of the treatment motor, the square bar slidingly connected in an outer sleeve, the outer sleeve connected in a support seat through a thread formed therein, and the support seat fixed on the pretreatment support.

[0009] As a further optimization scheme of the application, one end of the outer sleeve is fixedly provided with a connecting frame, a treatment sleeve is arranged between the connecting frames, an air inlet hole is formed in the treatment sleeve, an air outlet hole is formed at one end of the treatment sleeve, oil passing grooves are uniformly arranged on the side wall of the treatment sleeve, oil outlet holes are uniformly formed on the outer wall of the treatment sleeve, the oil passing grooves and the oil outlet holes are in communication, an elastic plugging mechanism is arranged on the oil outlet hole, a cleaning sleeve is arranged at one end of the treatment sleeve close to the air outlet hole, and a rotor joint is rotationally connected to one end of the treatment sleeve away from the air outlet hole.

[0010] As a further optimization scheme of the application, the top of the mounting frame is fixedly provided with a lifting motor, and the output end of the lifting motor is fixedly connected to a lifting lead screw.

[0011] As a further optimization scheme of the application, the oblique disc clamping mechanism comprises a rotating table rotatably connected to the machining platform, the bottom of the rotating table is fixedly connected to the output end of a rotating motor, the rotating motor is fixedly arranged in the machining platform, the top of the rotating table is symmetrically provided with a fixing frame, the fixing frames are rotatably connected to an oblique disc clamping sleeve, a turnover motor is fixedly connected to one of the fixing frames, and the output end of the turnover motor is fixedly connected to one of the oblique disc clamping sleeves.

[0012] As a further optimization scheme of the application, the pin pressing mechanism comprises a pin pressing support fixedly arranged on the machining platform, a pin pressing hydraulic cylinder is fixedly arranged on the top of the pin pressing support, and a pin shaft is arranged on the output end of the pin pressing hydraulic cylinder.

[0013] As a further optimization scheme of the application, a mounting frame is arranged on one side of the top of the pin pressing support, clamping air cylinders are symmetrically arranged on the mounting frame, a pin shaft clamping plate is fixedly connected to the output end of the clamping air cylinders, and the pin shaft clamping plate is slidably connected to a guide rail arranged on one side of the clamping air cylinders.

[0014] The application has the following beneficial effects: 1、The cam sleeve is rotated by changing the operation of the motor, the corresponding butt joint column on the drilling tool is moved up by the sliding connection between the side notch and the supporting sleeve in the rotating process of the cam sleeve, the tapered structure on the top of the butt joint column is sleeved on the transmission groove at the bottom of the driven shaft, and the rotating transmission structure composed of the butt joint column, the rotating sleeve and the drilling support post can rotate with the center wheel, so that one set of machining motor can drive different machining cutting heads to be driven independently, and the machining process does not need to change the cutting head, thereby improving the machining efficiency of the device.

[0015] 2、The oblique disc clamping mechanism is used to fix the oblique disc that needs to be drilled and pin pressed, the machining cutting head that needs to be used is moved to the upper side of the oblique disc by rotating the lower shell and the supporting sleeve driven by the adjusting motor, and the transmission changing mechanism is used to connect the driving components, the cutting head can be changed by the process adjusting mechanism after the process is completed, the drilling, rough grinding, semi-fine grinding and fine grinding processes can be sequentially completed, the drilling and grinding processes are concentrated in one station, and the positioning error caused by process conversion is avoided.

[0016] 3、The processing motor drives the outer sleeve to rotate through the square strip, and the outer sleeve approaches the hole on the swash plate by thread cooperation with the supporting seat in the process of rotation, and then enters the hole needing to press the pin shaft, in the process of entering, first connects the air inlet hole through the air path interface to make the compressed air obliquely sprayed from the air outlet hole, sweeps the machining debris remaining in the hole, and cooperates with the rotating cleaning sleeve to clean the debris, completely removes the debris from the hole, and as the processing sleeve penetrates, the plugging head in the elastic plugging mechanism is extruded in the hole and compresses the plugging spring, and the lubricating oil enters the oil groove through the oil path interface and flows out from the gap between the plugging head and the oil groove end, and is coated on the inside of the hole along the rotation of the processing sleeve, and then the air pump connected with the air path interface stops air inlet, the processing motor drives the outer sleeve to overturn and rotate, and the processing sleeve overturns and rotates to the home position, and in the process, the uniformly distributed elastic plugging mechanism withdraws from the hole in turn, and as the processing sleeve moves outward to the home position, the lubricating oil coated in the hole is uniformly coated by the cleaning sleeve, one operation can complete the drilling and cleaning and oiling actions, avoids the influence of impurities on the quality of the pin, and reduces the friction between the pin shaft and the pin shaft hole by coating lubricating oil. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a schematic diagram of the overall structure of the present application; Figure 2 is a schematic diagram of the clamping mechanism of the swash plate of the present application; Figure 3 is a schematic diagram of the pin pressing mechanism of the present application; Figure 4 is a schematic diagram of the pin shaft clamping plate in the present application; Figure 5 is a three-dimensional diagram of part of the structure of the present application; Figure 6 is a schematic diagram of the process adjusting mechanism of the present application; Figure 7 is an exploded view of part of the structure of the present application; Figure 8 is a schematic diagram of the cooperation relationship between the side notch and the butt joint sleeve of the present application; Figure 9 is a schematic diagram of the assembly structure of the pin pressing pre-processing mechanism of the present application; Figure 10 is a schematic diagram of the connection between the rotor joint and the processing sleeve of the present application.

[0018] In the figure: 1, processing platform; 2, lifting module; 3, process adjusting mechanism; 4, transmission changing mechanism; 5, swash plate clamping mechanism; 6, pin pressing mechanism; 7, pin pressing pretreatment mechanism; 8, processing tool bit; 21, mounting frame; 22, lifting screw; 23, lifting table; 24, lifting motor; 31, upper housing; 32, adjusting motor; 33, lower housing; 34, support sleeve; 35, driven shaft; 36, transmission groove; 37, transmission belt; 38, center wheel; 39, processing motor; 40, downward pressing cylinder; 41, changing motor; 42, cam sleeve; 43, side notch; 44, butt joint sleeve; 46, butt joint column; 47, rotating sleeve; 48, drilling support column; 49, downward pressing plate; 51, rotating table; 52, fixed frame; 53, swash plate clamping sleeve; 54, overturning motor; 61, pin pressing support; 62, pin pressing hydraulic cylinder; 63, mounting frame; 64, clamping cylinder; 65, pin shaft clamping plate; 69, connecting frame; 70, rotor joint; 71, pretreatment support; 72, processing motor; 73, square bar; 74, outer sleeve; 75, support seat; 76, processing sleeve; 77, air inlet hole; 78, air outlet hole; 79, cleaning sleeve; 80, oil passing groove; 81, elastic sealing mechanism. DETAILED DESCRIPTION

[0019] The application will be further described in detail below with reference to the accompanying drawings. It is necessary to point out here that the following detailed description is only used to further illustrate the application and cannot be understood as limiting the scope of protection of the application. Those skilled in the art can make some non-essential improvements and adjustments to the application according to the above application content.

[0020] Embodiment: please refer to Figures 1-10 , the pin drilling and pressing device of the swash plate of the plunger pump, comprising a processing platform 1, a lifting module 2 is arranged on one side of the top of the processing platform 1, a process adjusting mechanism 3 is mounted on the lifting module 2, the lifting module 2 is used for adjusting the height position of the process adjusting mechanism 3, a processing tool bit 8 for drilling and polishing is mounted in the process adjusting mechanism 3, the drilling and polishing process can be automatically changed in a single station during processing, and the drilling and polishing process is concentrated in a station, so that the positioning error caused by process conversion is avoided, and the processing tool bit 8 is driven to move downward by the lifting module 2 to process the swash plate of the plunger pump during processing, a swash plate clamping mechanism 5 is arranged on the top of the processing platform 1, the swash plate clamping mechanism 5 is used for fixing the swash plate of the plunger pump, a pin pressing mechanism 6 is arranged on the top of the processing platform 1, and a pin pressing pretreatment mechanism 7 is arranged on the processing platform 1, the pin shaft hole is cleaned and a layer of oil film is synchronously coated by the pin pressing pretreatment mechanism 7 after drilling and polishing, and then the pin pressing mechanism 6 is matched to press the pin, so that the friction between the pin shaft and the pin shaft hole is reduced, and the normal pressing of the pin is ensured.

[0021] Please refer to Figure 1The lifting module 2 includes a mounting frame 21 fixed on the machining platform 1, and a control cabinet is arranged on one side of the mounting frame 21, and a control module is arranged in the control cabinet; the lifting module 2, the process adjusting mechanism 3, the swash plate clamping mechanism 5, the pin pressing pretreatment mechanism 7 and the pin pressing mechanism 6 are driven by the control module to operate in an orderly manner during the machining process, and the processes of drilling, rough grinding, semi-fine grinding, fine grinding, cleaning and oiling and pin pressing are sequentially completed on the swash plate; the mounting frame 21 is rotatably connected with a lifting lead screw 22 through a bearing, the lifting lead screw 22 is provided with a lifting table 23, the lifting table 23 is connected with the lifting lead screw 22 in a matched mode through a ball nut embedded in the lifting table 23, a sliding block is arranged on one side of the lifting table 23 close to the mounting frame 21, the sliding block is slidably connected with a guide rail on one side of the mounting frame 21, a lifting motor 24 is fixedly installed on the top of the mounting frame 21, and the output end of the lifting motor 24 is connected with the top end of the lifting lead screw 22 through a coupling; during the rotation of the lifting lead screw 22 driven by the lifting motor 24, the lifting table 23 can be driven to move up and down along the axis direction of the lifting lead screw 22 through the cooperation between the lifting lead screw 22 and the lifting table 23.

[0022] Please refer to Figures 1-2 The swash plate clamping mechanism 5 includes a rotating table 51 rotatably connected with the machining platform 1 through a bearing, the bottom of the rotating table 51 is fixedly connected with the output end of a rotating motor, the rotating motor is used for driving the rotating table 51 to rotate, the rotating motor is fixedly installed in the machining platform 1, the top of the rotating table 51 is symmetrically provided with a fixing frame 52, the fixing frame 52 is rotatably connected with a swash plate clamping sleeve 53, one side of the fixing frame 52 is fixedly connected with a turnover motor 54, the output end of the turnover motor 54 is fixedly connected with one side of the swash plate clamping sleeve 53, the turnover motor 54 is used for driving the swash plate to overturn, when the swash plate of the fixed plunger pump is clamped, the swash plate clamping sleeve 53 is sleeved on the swash plate from both sides, and then the fixing frame 52 is fixed on the top of the rotating table 51 through a pin.

[0023] Please refer to Figures 3-4The pressing pin mechanism 6 comprises a pressing pin support 61 fixed on the machining platform 1, the top of the pressing pin support 61 is fixed with a pressing pin hydraulic cylinder 62, the output end of the pressing pin hydraulic cylinder 62 is fixed with a pressing pin shaft, the pressing pin shaft is used for conducting the pressure of the pressing pin hydraulic cylinder 62 to the pin shaft, one side of the top of the pressing pin support 61 is provided with a mounting frame 63, one side of the mounting frame 63 is symmetrically provided with a clamping cylinder 64, the output end of the clamping cylinder 64 is fixedly connected with a pin shaft clamping plate 65, the pin shaft clamping plate 65 is slidably connected on the guide rail arranged on one side of the clamping cylinder 64, the control module drives the clamping cylinders 64 on both sides to extend at the same time, and then the pin shaft clamping plates 65 on both sides are used to lock the pin shaft, after the pin shaft is clamped, the pin shaft is matched with the ball embedded and mounted in the pin shaft clamping plate 65, then the pressing pin hydraulic cylinder 62 extends the pressing pin shaft in the pressing process, the pressing pin shaft contacts the pin shaft and then presses the pin shaft to slide in the pin shaft clamping plate 65, the ball embedded and mounted in the pin shaft clamping plate 65 is matched in the sliding process to avoid damage to the pin shaft, after one end of the pin shaft is pressed into the hole on the swash plate, the clamping cylinder 64 drives the pin shaft clamping plate 65 to return to the original position, and at the same time, the pressing pin hydraulic cylinder 62 continuously provides the pressure to press the pin shaft into the drilled hole.

[0024] Please refer to Figures 5-8, the process adjusting mechanism 3 comprises an upper housing 31 fixed on the lifting platform 23, an adjusting motor 32 fixedly installed on the inner wall of the upper housing 31, a lower housing 33 fixedly connected to the output end of the adjusting motor 32, and a circular protrusion provided at the top of the lower housing 33 is rotatably connected to a circular groove at the bottom of the upper housing 31 through a bearing, a supporting sleeve 34 is fixedly arranged in the lower housing 33, and four groups of supporting plates symmetrically arranged on the inner wall of the supporting sleeve 34 are rotatably connected to a driven shaft 35 through bearings, a tapered transmission groove 36 is formed at the bottom of the driven shaft 35, a transmission changing mechanism 4 is arranged in the lower housing 33, the transmission changing mechanism 4 comprises a changing motor 41 fixedly arranged at the bottom end inside the supporting sleeve 34, the output end of the changing motor 41 is fixedly connected to the bottom of a cam sleeve 42 through a shaft coupling, a side slot 43 is formed in the side wall of the cam sleeve 42, one end of a butt joint sleeve 44 is slidably connected to the side slot 43, the butt joint sleeve 44 is slidably connected to a limiting frame arranged in the supporting sleeve 34, the limiting frame is used to limit the butt joint sleeve 44 to avoid rotation of the butt joint sleeve 44 during sliding along the side slot 43, the butt joint sleeve 44 is rotatably connected to a butt joint column 46, the butt joint column 46 is slidably connected to a slot formed at the top of a rotating sleeve 47, the rotating sleeve 47 is rotatably connected to the supporting sleeve 34 through a bearing, a drill supporting column 48 is slidably connected to a groove formed at the bottom of the rotating sleeve 47, a machining tool bit 8 is fixedly arranged at the bottom end of the drill supporting column 48, and the machining tool bit 8 comprises four groups of drill tools, rough grinding tools, semi-precision grinding tools and precision grinding tools, which correspond to the four drill supporting columns 48, a lower pressing plate 49 is rotatably connected to the drill supporting column 48 through a bearing, the lower pressing plate 49 is fixedly arranged on the output end of a lower pressing cylinder 40, the lower pressing cylinder 40 is symmetrically arranged at the bottom of the supporting sleeve 34, a transmission belt 37 is wound around the driven shaft 35, and the transmission belt 37 is wound around a central wheel 38, the bottom end of the central wheel 38 is rotatably connected to the cam sleeve 42, and the top of the central wheel 38 is connected to the output end of a machining motor 39 through a belt wheel and a belt, the machining motor 39 is fixedly arranged outside the supporting sleeve 34, during drilling of the swash plate of the plunger pump, the machining tool bit 8 serving as a drill tool is first moved to the top of the swash plate by rotating the lower housing 33 and the supporting sleeve 34 driven by the adjusting motor 32, and the changing motor 41 is driven to rotate the cam sleeve 42 by the control module, during rotation of the cam sleeve 42, the drill tool is moved upward along the side slot 43 and the supporting sleeve 34, the corresponding butt joint column 46 on the drill tool is moved upward, the tapered structure at the top of the butt joint column 46 is inserted into the transmission groove 36 at the bottom of the driven shaft 35, the rotating transmission structure composed of the butt joint column 46, the rotating sleeve 47 and the drill supporting column 48 can rotate with the central wheel 38, then the drill tool is provided with a feeding action by downward movement of the lifting platform 23, drilling is performed on the swash plate, and then the adjusting motor 32 and the changing motor 41 are rotated again to automatically change the tool.

[0025] Please refer to Figures 1-2 and Figures 9-10The front pin pressing pretreatment mechanism 7 comprises a pretreatment support 71 fixed on the machining platform 1, a processing motor 72 fixedly installed on the top of the pretreatment support 71, a square bar 73 fixedly connected to the output end of the processing motor 72, the square bar 73 being slidingly connected in an outer sleeve 74, the outer sleeve 74 being connected in the support seat 75 through the thread cooperation on the outer wall, the support seat 75 being fixed on the pretreatment support 71, a connecting frame 69 being fixedly arranged at one end of the outer sleeve 74, a processing sleeve 76 being fixedly arranged between the connecting frames 69, an air inlet hole 77 being formed on the processing sleeve 76, an air outlet hole 78 being formed at one end of the processing sleeve 76, oil passing grooves 80 being uniformly arranged on the side wall of the processing sleeve 76, an oil outlet hole being formed on the outer wall of the processing sleeve 76 and being communicated with the oil passing grooves 80, an elastic plugging mechanism 81 being arranged on the oil outlet hole and comprising a plugging head sleeved on the end of the oil passing groove 80 and a plugging spring providing plugging elastic force, the plugging spring providing a pushing force for the plugging head in a normal state, so as to close the end of the oil passing groove 80 through the plugging head, a cleaning sleeve 79 being sleeved at one end of the processing sleeve 76 close to the air outlet hole 78, the cleaning sleeve 79 being located between the air outlet hole 78 and the elastic plugging mechanism 81, a rotor joint 70 being rotationally connected to one end of the processing sleeve 76 away from the air outlet hole 78, an oil passage interface being formed on the bottom of the rotor joint 70 and being communicated with the oil passing groove 80, and an air passage interface being formed on the middle of the rotor joint 70 and being communicated with the air inlet hole 77, the oil passage interface being connected with an oil supply pipeline and the air passage interface being connected with an air pump in use, the processing motor 72 drives the outer sleeve 74 to rotate through the square bar 73 when the hole axis on the swash plate coincides with the axis of the processing sleeve 76 by the cooperation of the rotating motor and the overturning motor 54, the outer sleeve 74 approaches the hole on the swash plate in the process of rotation by the thread cooperation with the support seat 75, and then enters the hole in which the pin shaft needs to be pressed, in the process of entering, the compressed air is obliquely sprayed out of the air outlet hole 78 through the air passage interface connected with the air inlet hole 77, so as to blow off the machining debris remaining in the hole, and the cleaning sleeve 79 rotates to clean the debris, so that the debris is completely removed from the hole, the plugging head in the elastic plugging mechanism 81 is compressed to compress the plugging spring under the extrusion in the hole as the processing sleeve 76 goes deeper, and the lubricating oil enters the oil passing groove 80 through the oil passage interface and flows out from the gap between the plugging head and the end of the oil passing groove 80 to be coated on the inside of the hole by the rotation of the processing sleeve 76, then the air pump connected with the air passage interface stops air inlet, the processing motor 72 drives the outer sleeve 74 to rotate reversely through the square bar 73, so that the processing sleeve 76 reversely rotates to return to the original position, in the process, the uniformly distributed elastic plugging mechanisms 81 are sequentially withdrawn from the hole, and the lubricating oil coated in the hole is evenly coated by the cleaning sleeve 79 as the processing sleeve 76 moves outward to return to the original position until the processing sleeve 76 completely separates from the hole in which the pin needs to be pressed.

[0026] It needs to be explained that the drilling and pressing pin device of the plunger pump swash plate, in use, first fix the plunger pump swash plate, in the process, the swash plate clamping sleeve 53 is sleeved on the swash plate from both sides, then the fixed frame 52 is fixed on the top of the rotating table 51 through the pin, then the swash plate clamping sleeve 53 is turned over by the turning motor 54 to make the surface needing to be drilled perpendicular to the rotating table 51, then the lower shell 33 and the supporting sleeve 34 are rotated by the adjusting motor 32 to move the machining tool head 8 as the drilling tool to the directly above of the swash plate, at the same time, the control module drives the change motor 41 to operate to make the cam sleeve 42 rotate, in the process of the rotation of the cam sleeve 42, the sliding connection of the side notch 43 and the supporting sleeve 34 makes the drilling tool move up on the corresponding butt joint column 46, after the tapered structure on the top of the butt joint column 46 is inserted into the transmission groove 36 at the bottom of the driven shaft 35, the rotating transmission structure composed of the butt joint column 46, the rotating sleeve 47 and the drilling support column 48 can rotate with the center wheel 38, then the machining motor 39 drives the center wheel 38 to rotate through the belt pulley, the drilling tool at the bottom of the drilling support column 48 rotates, at the same time, the lifting motor 24 drives the lifting lead screw 22 to rotate, through the cooperation of the lifting lead screw 22 and the lifting table 23, the lifting table 23 moves down along the axis direction of the lifting lead screw 22, and the drilling is carried out on the swash plate by using the rotating drilling tool; then the drilling tool is moved up to the original position by the lifting motor 24, the lower shell 33 is rotated by ninety degrees by the adjusting motor 32, the machining tool head 8 as the rough grinding tool is moved to the directly above of the swash plate, at the same time, the cam sleeve 42 is rotated by ninety degrees by the change motor 41, the rough grinding tool moves up on the corresponding butt joint column 46 and is connected in the transmission groove 36 at the bottom of the driven shaft 35, the tool changing action is realized, then the rough grinding, semi-fine grinding and fine grinding are completed in turn by reciprocating operation, after the fine grinding, the axis of the hole on the swash plate coincides with the axis of the processing sleeve 76 by the operation of the rotating motor and the turning motor 54, then the processing motor 72 drives the outer sleeve 74 to rotate through the square bar 73, in the process of the rotation of the outer sleeve 74, the outer sleeve 74 approaches the hole on the swash plate by the cooperation of the threads, then enters the hole needing to be pressed, in the process of entering, first, the compressed air is obliquely sprayed from the air outlet hole 78 by connecting the air inlet hole 77 through the air connection, the machining debris remaining in the hole is blown away, at the same time, the rotating cleaning sleeve 79 is used to clean the debris, the debris is completely removed from the hole, with the deepening of the processing sleeve 76, the sealing head in the elastic sealing mechanism 81 is compressed under the extrusion in the hole, at the same time, the lubricating oil enters the oil groove 80 through the oil connection and flows out from the gap between the sealing head and the end of the oil groove 80 to be coated on the inside of the hole by the rotation of the processing sleeve 76, then the air pump connected with the air connection stops air inlet, the processing motor 72 drives the outer sleeve 74 to rotate reversely through the square bar 73, the processing sleeve 76 rotates to the original position, in the process, the evenly distributed elastic sealing mechanism 81 exits the hole in turn, with the outward movement of the processing sleeve 76 to the original position, the lubricating oil coated in the hole is evenly coated by the cleaning sleeve 79 until the processing sleeve 76 completely separates from the hole needing to be pressed;After the rotation motor cooperates with the operation of the turnover motor 54 to make the hole axis on the swash plate coincide with the pin shaft axis between the pin shaft clamping plate 65, then the pin pressing hydraulic cylinder 62 will extend the pin pressing shaft, after the pin pressing shaft contacts the pin shaft, it will continue to press the pin shaft to slide in the pin shaft clamping plate 65, during the sliding process, the embedded and installed ball in the pin shaft clamping plate 65 will avoid damaging the pin shaft, after one end of the pin shaft is pressed into the hole on the swash plate, the clamping cylinder 64 drives the pin shaft clamping plate 65 to return to the original position, at the same time, the pin pressing hydraulic cylinder 62 continuously provides the pressure to press the pin shaft into the drilled hole, and the pin pressing action is completed.

[0027] The above-described embodiments only express several embodiments of the present application, the description is more specific and detailed, but it cannot be understood as the limitation of the patent scope of the present application. It should be pointed out that for ordinary skilled in the art, without departing from the concept of the present application, several modifications and improvements can be made, which belong to the protection scope of the present application.

Claims

1. A drilled pressure pin device for a swash plate of a plunger pump comprising a machining platform, characterized in that: A lifting module is provided on one side of the top of the processing platform. A process adjustment mechanism is installed on the lifting module. A slant clamping mechanism is provided on the top of the processing platform. A pin pressing mechanism is provided on the top of the processing platform. A pin pressing pre-processing mechanism is also provided on the processing platform. The lifting module includes a mounting frame fixed on a processing platform. A control cabinet is provided on one side of the mounting frame, and a control module is provided in the control cabinet. A lifting screw is rotatably connected to the mounting frame, and a lifting platform is provided on the lifting screw. The process adjustment mechanism includes an upper housing fixed on a lifting platform. An adjustment motor is fixedly installed on the inner wall of the upper housing. The output end of the adjustment motor is fixedly connected to a lower housing, and the lower housing is rotatably connected to the bottom of the upper housing. A support sleeve is fixedly installed in the lower housing, and a driven shaft is rotatably connected to a support plate symmetrically arranged on the inner wall of the support sleeve. A transmission groove is opened at the bottom of the driven shaft, and a transmission change mechanism is provided in the lower housing.

2. The bore press pin apparatus for a swash plate of a plunger pump of claim 1, wherein: The transmission change mechanism includes a change motor fixed in the support sleeve. The output end of the change motor is fixedly connected to a cam sleeve. A side groove is opened on the side wall of the cam sleeve. The side groove is slidably connected to one end of the docking sleeve. The docking sleeve is slidably connected to a limiting frame set in the support sleeve.

3. The bore press pin apparatus for a swash plate of a gerotor pump of claim 2, wherein: The docking sleeve is rotatably connected to the docking post, and the lower end of the docking post is slidably connected to the slot opened at the top of the rotating sleeve. The rotating sleeve is rotatably connected to the support sleeve. A drilling support column is slidably connected in the groove opened at the bottom of the rotating sleeve, and a machining head is fixedly installed at the bottom end of the drilling support column. A lower pressure plate is rotatably connected to the drilling support column. The lower pressure plate is fixed to the output end of the lower pressure cylinder, and the lower pressure cylinder is symmetrically installed at the bottom of the support sleeve.

4. The bore press pin apparatus for a swash plate of a gerotor pump of claim 2, wherein: A drive belt is wound around the driven shaft and the drive belt is wound around the central wheel. The bottom end of the central wheel is rotatably connected to the cam sleeve, and the top of the central wheel is connected to the output end of the processing motor through a pulley and belt. The processing motor is fixed on the outside of the support sleeve.

5. The bore press pin apparatus for a swash plate of a plunger pump of claim 1, wherein: The pre-processing mechanism for pressing pins includes a pre-processing bracket fixed on a processing platform. A processing motor is fixedly installed on the top of the pre-processing bracket, and a square bar is fixedly connected to the output end of the processing motor. The square bar is slidably connected in an outer sleeve. The outer sleeve is connected to a support base through a threaded connection. The support base is fixed on the pre-processing bracket.

6. The bore press pin apparatus for a swash plate of a plunger pump of claim 5, wherein: A connecting frame is fixedly installed at one end of the outer sleeve, and a processing sleeve is arranged between the connecting frames. An air inlet is opened in the processing sleeve, and an air outlet is opened at one end of the processing sleeve. Oil grooves are evenly arranged on the side wall of the processing sleeve, and oil outlet holes are evenly arranged on the outer wall of the processing sleeve. The oil grooves are connected to the oil outlet holes, and an elastic sealing mechanism is provided on the oil outlet holes. A cleaning sleeve is fitted on the end of the processing sleeve near the air outlet hole, and a rotor connector is rotatably connected to the end of the processing sleeve away from the air outlet hole.

7. The bore press pin apparatus for a swash plate of a gerotor pump of claim 1, wherein: A lifting motor is fixedly installed on the top of the mounting frame, and the output end of the lifting motor is fixedly connected to the lifting screw.

8. The drilled pressure pin apparatus of a swash plate of a plunger pump of claim 1, wherein: The swash plate clamping mechanism comprises a rotating table rotatably connected to the machining platform, the bottom of the rotating table is fixedly connected to the output end of a rotating motor, the rotating motor is fixed in the interior of the machining platform, the top of the rotating table is symmetrically provided with fixing frames, the fixing frames are rotatably connected with a swash plate clamping sleeve, a turnover motor is fixedly connected to one of the fixing frames, and the output end of the turnover motor is fixedly connected to one of the swash plate clamping sleeves.

9. The bore press pin apparatus for a swash plate of a gerotor pump of claim 1, wherein: The pin pressing mechanism comprises a pin pressing support fixed to the machining platform, a pin pressing hydraulic cylinder is fixed to the top of the pin pressing support, and a pin pressing shaft is arranged on the output end of the pin pressing hydraulic cylinder.

10. The bore press pin apparatus for a swash plate of a gerotor pump of claim 9, wherein: A mounting frame is arranged on one side of the top of the pin pressing support, clamping air cylinders are symmetrically mounted on the mounting frame, pin shaft clamping plates are fixedly connected to the output ends of the clamping air cylinders, and the pin shaft clamping plates are slidably connected to guide rails arranged on one side of the clamping air cylinders.

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