Valve assembly drilling apparatus

Abstract

The application discloses a valve assembly drilling device and relates to the technical field of valve assembly drilling. The valve assembly drilling device comprises a machining base, supports fixed on the upper end surface of the machining base and a work seat. An inner clamping mechanism for clamping a valve assembly from the inside is arranged on the upper end surface of the work seat. A chip sealing and drilling part for drilling multiple points of the valve assembly and collecting iron chips generated in the drilling of each point is arranged on the lower part of the transverse section of the support. The chip sealing and drilling part and the inner clamping mechanism cooperate with each other and act on the valve assembly to simultaneously clamp, limit and drill the valve assembly. A chip collecting part for cooperating with the chip sealing mechanism to collect the iron chips leaked when the valve assembly is drilled is arranged on the work seat. The chip sealing and drilling part and the chip collecting part cooperate to realize the sealing and centralized collection of the chips, avoid the interference of the accumulation of the iron chips and clamp the valve assembly from the inner cavity direction through the inner clamping mechanism, thereby releasing the drilling space above, improving the machining flexibility and the drilling accessibility.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of valve assembly drilling, in particular to a valve assembly drilling device. BACKGROUND

[0002] The valve assembly (see Figure 7 ) is a core control element in a fluid conveying system and is widely used in petroleum, chemical industry, water treatment, gas and various industrial pipe networks. The function of the valve assembly is mainly to control the opening, closing and flow regulation of the medium. In the manufacturing process of the valve assembly, drilling is an indispensable key process, especially in the machining of the valve body or flange part. Such drilling is usually distributed on the annular disc-shaped end face of the valve assembly and is arranged at equal intervals in the circumference. It is mainly used for the subsequent installation of flange connection bolts to realize the mechanical connection and sealing cooperation of the valve and the pipeline or other equipment. Since the end face is usually made of metal material (such as stainless steel, carbon steel, alloy steel, etc.), the hole position accuracy, hole quality and overall geometric symmetry need to be ensured during drilling. Therefore, high technical requirements are put forward for the machining process.

[0003] However, in the traditional actual drilling process, the iron filings and iron wires generated are usually directly accumulated on the surface of the workpiece. If the metal chips generated by cutting are not removed in time, they will directly affect the normal flow of the cooling liquid on the surface of the workpiece, causing a significant decrease in the local cooling effect of the workpiece surface, and further causing overheating and tool ablation. In addition, since the drilling on the valve assembly is usually circumferential continuous hole distribution, the iron filings generated by the previous hole are easy to splash on the workpiece surface during the drilling of multiple holes in sequence. When the drill moves to the next hole for machining, these residues will be brought into the hole by the drill, causing the hole wall to be scratched, the hole edge to be collapsed or uneven, and further causing the hole diameter size deviation, affecting the accuracy consistency of the hole position. This "associated interference" is particularly obvious on the valve end face with dense holes.

[0004] In addition, in order to ensure the stability and safety of the workpiece during drilling, the valve assembly must be reliably clamped and limited. In the traditional tooling clamp design, the clamping plate is usually pressed tightly from above, that is, directly pressed on the end face area where drilling is performed. Although this method is simple in structure, it will cause many interference problems in the actual drilling process: the clamping plate often blocks part of the hole position, limiting the feeding space of the drill; when continuously drilling in the circumferential direction, the operator needs to constantly loosen the clamping plate and reposition, frequently changing the clamping position, which seriously affects the machining rhythm and operation efficiency, and is easy to cause small displacement errors due to multiple clamping, affecting the circumferential symmetry and precision stability of drilling. SUMMARY

[0005] The valve assembly drilling device provided by the present application solves the technical problems of traditional valve assembly drilling, i.e., iron filings are easily accumulated on the surface of the workpiece, which hinders cooling, causes overheating and tool ablation, and is brought into the hole when continuous holes are drilled, which causes hole wall scratches, size deviation, and affects precision consistency; meanwhile, the clamping plate pressed on the drilling surface easily blocks the hole position and interferes with processing, frequent adjustment is required, and the processing stability is affected.

[0006] The valve assembly drilling device provided by the present application comprises a processing base, a support fixed on the upper end surface of the processing base, and a work seat, the upper end surface of the work seat is provided with an inner clamping mechanism for clamping the valve assembly from the inside, the lower part of the transverse section of the support is provided with a scrap sealing drilling part for multi-point drilling of the valve assembly and for concentrating the iron filings in each drilling process together, the scrap sealing drilling part and the inner clamping mechanism cooperate with each other to act on the valve assembly at the same time to perform clamping limiting and drilling operation, a guide part is arranged between the scrap sealing drilling part and the inner clamping mechanism to guide the cutting of the scrap sealing drilling part in the drilling, the scrap sealing drilling part comprises a Y-shaped main bracket installed on the lower part of the transverse section of the support through a control moving assembly and a Y-shaped auxiliary bracket fixed on the lower end surface of the Y-shaped main bracket through a fixing column, a drill rod is arranged on the lower end surface of each branch of the Y-shaped main bracket, a sleeve is fixedly connected to the end part of each branch of the Y-shaped auxiliary bracket, the sleeve is sleeved on the outside of the drill rod, a sliding cylinder is slidably connected in the inner cavity of the sleeve, the lower end of the sliding cylinder is rotatably connected with a stop ring, and the work seat is provided with a scrap collecting part for cooperating with the scrap sealing mechanism to collect the iron filings leaked when the valve assembly is drilled.

[0007] In a possible implementation, the inner clamping mechanism comprises a support cylinder fixedly connected to the upper end surface of the work seat and having an upper opening, and a support rod slidably connected in the inner cavity of the support cylinder, the bottom of the cavity of the support cylinder and the lower end of the support rod are fixedly connected together with a top spring, a plurality of rectangular sleeves are equidistantly connected to the outer circumference of the support cylinder, strip-shaped through grooves are formed in the upper part of the rectangular sleeves along the radial direction of the support cylinder, a top rod is slidably connected in the rectangular sleeve, a connecting rod is hinged to the upper end surface of the top rod and located in the strip-shaped through groove, one end of the connecting rod away from the top rod is hinged to the outer wall of the support rod, and an arc-shaped clamping block is fixedly connected to the side of the top rod away from the rectangular sleeve, and the arc-shaped clamping block is provided with an auxiliary clamping unit for abutting against the upper surface of the valve assembly to further enhance the clamping stability of the valve assembly.

[0008] In a possible implementation, the guide part comprises a disc fixedly connected to the upper end of the support rod, a plurality of guide holes are equidistantly formed in the upper end surface of the disc in the circumferential direction, and two guide rods are symmetrically fixedly connected to the lower end of the Y-shaped auxiliary bracket for cooperating with the guide holes.

[0009] In a possible implementation, the chip collecting part can lock the inner clamping mechanism after clamping the valve assembly, the chip collecting part comprises two left-right symmetrical sliding grooves opened on the upper end surface of the working seat, a support plate is slidably connected in each sliding groove, and an arc-shaped box is fixedly connected to the upper end surface of the support plate.

[0010] In a possible implementation, a plurality of drainage holes are equidistantly arranged along the arc direction of the arc-shaped box cavity bottom, and a plurality of rows of drainage holes are equidistantly arranged along the radial direction of the arc-shaped box.

[0011] In a possible implementation, two vertical through grooves are left-right symmetrically arranged on the support cylinder, two fixed rods are symmetrically and fixedly connected to the outside of the support rod and slidably arranged in the vertical through grooves, a push plate is fixedly connected to the side of the fixed rod away from the support rod, and an arc-shaped pressing plate for limiting the push plate is fixedly connected to the side of the support plate close to the support cylinder through a connecting rod.

[0012] In a possible implementation, a spring telescopic rod is fixedly connected to the center of the lower end surface of the Y-shaped sub-carriage, and the disc and the support rod are jointly provided with a jack hole for the spring telescopic rod to extend into.

[0013] In a possible implementation, the auxiliary clamping unit comprises an embedding groove and an L-shaped clamping block, the embedding groove is arranged on the arc-shaped clamping block, the L-shaped clamping block is hingedly connected to the embedding groove through a lug on the upper end surface of the arc-shaped clamping block, and a limiting spring is fixedly connected between the L-shaped clamping block and the embedding groove.

[0014] In a possible implementation, a plurality of liquid guiding grooves are equidistantly arranged on the upper end surface of the working seat in the transverse direction, and a plurality of rows of liquid guiding grooves are equidistantly arranged in the longitudinal direction, and a plurality of liquid guiding grooves are equidistantly arranged on the upper end surface of the machining base.

[0015] From the above technical solutions, the present application has the following advantages: in the present application, the sleeve and the sliding cylinder in the chip sealing drilling part effectively cover the drill rod and close the drilling area during drilling, thereby closing the flying path of metal chips during drilling, and the chip collecting part actively receives the metal chips and falls into the collecting part at the drilling moment, so that the metal chips no longer stay on the surface of the workpiece, the cooling surface of the workpiece is kept clean and unobstructed, the cooling efficiency is significantly improved, and the problem of "one hole affecting the next hole" is avoided, thereby ensuring the machining consistency, size stability and circumferential symmetry between holes.

[0016] In the present application, the support rod, the top rod, the connecting rod and the arc-shaped clamping block in the inner clamping mechanism are combined with each other to limit the clamping from the inner cavity direction of the valve assembly, so that the drilling area above the valve assembly is completely released, the drill bit can freely feed and retract at any hole position, and the clamp structure does not need to be bypassed or disassembled, thereby improving the machining flexibility and space accessibility.

[0017] In the present application, the force is transmitted from the center of the valve assembly cavity by the top rod and arc-shaped clamping block in the inner clamping mechanism, and the L-shaped clamping block is used for auxiliary limiting at the edge of the cavity wall of the valve assembly, so that the valve assembly is clamped from multiple directions. Compared with the traditional single upper pressing type clamping plate, the force is uniform, the anti-disturbance ability is strong, and the small displacement of the workpiece in the continuous drilling process can be effectively prevented, and the circumferential symmetry and overall machining consistency of the hole position are significantly improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or prior art description will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of the provided drawings.

[0019] Figure 1 The valve assembly drilling device structure schematic diagram provided by the present application.

[0020] Figure 2 The scrap sealing drilling part installation structure schematic diagram provided by the present application.

[0021] Figure 3 The inner clamping mechanism and the scrap collecting part installation structure schematic diagram provided by the present application.

[0022] Figure 4 The inner clamping mechanism three-dimensional structure schematic diagram provided by the present application.

[0023] Figure 5 The inner clamping mechanism front view perspective structure schematic diagram provided by the present application.

[0024] Figure 6 The inner clamping mechanism three-dimensional structure schematic diagram provided by the present application. Figure 5 The A part structure enlarged schematic diagram in the present application.

[0025] Figure 7 The valve assembly shape schematic diagram.

[0026] Figure 8 The inner clamping mechanism operation installation structure schematic diagram of the valve assembly provided by the present application.

[0027] Wherein, the above-mentioned drawings include the following reference signs: 1, machining base; 2, support; 3, work seat; 4, inner clamping mechanism; 41, support cylinder; 42, support rod; 43, rectangular sleeve; 44, ejector rod; 45, connecting rod; 46, arc-shaped clamping block; 47, auxiliary clamping unit; 471, embedded groove; 472, L-shaped clamping block; 48, push plate; 5, chip sealing drilling part; 51, control moving assembly; 52, Y-shaped main bracket; 53, Y-shaped auxiliary bracket; 54, drill rod; 55, sleeve; 56, sliding cylinder; 57, stop ring; 6, guiding part; 61, disc; 62, guiding hole; 63, guiding rod; 7, chip collecting part; 71, sliding groove; 72, support plate; 73, arc-shaped box; 74, arc-shaped pressing plate; 8, spring telescopic rod; 9, liquid guiding groove; 10, liquid guiding groove. DETAILED DESCRIPTION

[0028] In order to make the above-mentioned objectives, features and advantages of the present application more apparent, the specific embodiments of the present application are described in detail below with reference to the drawings. In the following description, a lot of specific details are set forth in order to fully understand the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the spirit of the present application, so the present application is not limited to the specific embodiments disclosed below.

[0029] Referring to Figure 1 and Figure 2 , the present application provides a technical solution: a valve assembly drilling device, comprising a machining base 1, a support 2 fixed on the upper end surface of the machining base 1 in an L shape, and a work seat 3, the upper end surface of the work seat 3 is provided with an inner clamping mechanism 4 for clamping the valve assembly from the inside, the lower part of the transverse section of the support 2 is provided with a chip sealing drilling part 5 for drilling multiple points on the valve assembly and collecting the iron chips in each drilling process, the chip sealing drilling part 5 and the inner clamping mechanism 4 cooperate with each other to clamp and limit the valve assembly and perform drilling operation at the same time, the guiding part 6 is provided between the chip sealing drilling part 5 and the inner clamping mechanism 4 for guiding the chip sealing drilling part 5 to cut in, the work seat 3 is provided with a chip collecting part 7 for cooperating with the chip sealing drilling part 5 to collect the iron chips leaked when the valve assembly is drilled, the chip collecting part 7 can cooperate with the inner clamping mechanism 4 to lock the inner clamping mechanism 4 after clamping the valve assembly, a plurality of liquid guiding grooves 9 are equidistantly arranged on the upper end surface of the work seat 3 in a transverse direction, and a plurality of rows of liquid guiding grooves 9 are equidistantly arranged in a longitudinal direction, a plurality of liquid guiding grooves 10 are equidistantly arranged on the upper end surface of the machining base 1 and communicate with the liquid guiding grooves 9, the cooling liquid flowing onto the work seat 3 during the drilling process first flows into the liquid guiding grooves 9, then flows into the liquid guiding grooves 10, and finally flows away from the liquid guiding grooves 10.

[0030] Referring to Figure 2In the embodiment, the chip sealing drill hole part 5 comprises a Y-shaped main bracket 52 installed at the lower part of the transverse section of the support 2 through the control moving assembly 51 and a Y-shaped auxiliary bracket 53 fixed at the lower end surface of the Y-shaped main bracket 52 through the fixing column.

[0031] Please refer to Figure 3 、 Figure 4 、 Figure 5 and Figure 8 In the embodiment, the inner clamping mechanism 4 comprises a supporting cylinder 41 fixedly connected at the upper end surface of the operation seat 3 and opened at the upper part and a supporting rod 42 slidably connected in the inner cavity of the supporting cylinder 41, the lower end of the supporting rod 42 is fixedly connected with the cavity bottom of the supporting cylinder 41 together with a top spring, the outer circumference of the supporting cylinder 41 is equidistantly communicated with a plurality of rectangular sleeves 43, the upper part of the rectangular sleeve 43 is provided with a strip-shaped through slot distributed along the radial direction of the supporting cylinder 41, a top rod 44 is slidably connected in the rectangular sleeve 43, a connecting rod 45 is hinged at the upper end surface of the top rod 44 and located in the strip-shaped through slot, one end of the connecting rod 45 away from the top rod 44 is hinged on the outer wall of the supporting rod 42, one side of the top rod 44 away from the rectangular sleeve 43 is fixedly connected with an arc-shaped clamping block 46, and the arc-shaped clamping block 46 is provided with an auxiliary clamping unit 47 for abutting on the upper surface of the valve assembly to further enhance the clamping stability of the valve assembly.

[0032] Please refer to Figure 2 and Figure 4 The lower end surface of the Y-shaped auxiliary bracket 53 is fixedly connected with a spring telescopic rod 8, and the disc 61 and the supporting rod 42 are jointly provided with an insertion hole for the spring telescopic rod 8 to extend into.

[0033] Please refer to Figure 6 The auxiliary clamping unit 47 comprises an embedded groove 471 and an L-shaped clamping block 472, the embedded groove 471 is formed in the arc-shaped clamping block 46, the L-shaped clamping block 472 is hinged on the arc-shaped clamping block 46 through the lug and located in the embedded groove 471, and the L-shaped clamping block 472 and the embedded groove 471 are jointly fixedly connected with a limiting spring.

[0034] The valve assembly sleeve is placed outside the inner clamping mechanism 4, the upper end surface of the arc-shaped clamping block 46 is flush with the upper end surface of the valve assembly, the Y-shaped auxiliary bracket 53 is controlled to move downward by the control moving assembly 51, the Y-shaped auxiliary bracket 53 drives the spring telescopic rod 8 to insert into the insertion hole, then the support rod 42 is pushed to move downward, the support rod 42 drives the connecting rod 45 to move downward, at the same time, the compression spring is compressed, the connecting rod 45 pushes the top rod 44 to move away from the axis of the support cylinder 41, the top rod 44 drives the arc-shaped clamping block 46 to move, until the arc-shaped clamping block 46 touches the inner wall of the valve assembly, at the same time, the arc-shaped clamping block 46 drives the vertical segment of the L-shaped clamping block 472 in the inclined state to abut against the inner wall of the valve assembly, after the L-shaped clamping block 472 and the valve assembly abut against each other, the L-shaped clamping block 472 rotates around the hinge point of the lug, until the vertical segment of the L-shaped clamping block 472 abuts against the upper end surface of the valve assembly near the edge of the inner cavity, so that the valve assembly can be clamped and limited from multiple directions, and the upper end surface of the valve is ensured to be open without obstruction.

[0035] Please refer to Figure 3 In the embodiment, the chip collecting part 7 includes two left and right symmetrical sliding grooves 71 opened on the upper end surface of the working seat 3, the sliding grooves 71 are both slidingly connected with support plates 72, the support cylinder 41 is provided with two vertical through grooves on the left and right sides, the support rod 42 is fixedly connected with two fixed rods which are slidingly arranged in the vertical through grooves on the outside, the fixed rods are fixedly connected with the push plates 48 on the side away from the support rod 42, and the support plates 72 are fixedly connected with arc-shaped pressing plates 74 for limiting the push plates 48 through connecting rods on the side close to the support cylinder 41.

[0036] The downward movement of the support rod 42 will also drive the fixed rods to slide downward in the vertical through grooves, and then the fixed rods drive the push plates 48 to move downward, when the inner clamping mechanism 4 clamps the valve assembly, the two support plates 72 are manually pushed to move close to each other along the sliding grooves 71, and then the support plates 72 drive the arc-shaped pressing plates 74 to move through the connecting rods, so that the arc-shaped pressing plates 74 abut against the upper side of the push plates 48, thereby locking and limiting the downward moved support rod 42, and then the inner clamping mechanism 4 firmly clamps the valve assembly.

[0037] Please refer to Figure 2 In the embodiment, the chip collecting part 7 includes two left and right symmetrical sliding grooves 71 opened on the upper end surface of the working seat 3, the sliding grooves 71 are both slidingly connected with support plates 72, the support cylinder 41 is provided with two vertical through grooves on the left and right sides, the support rod 42 is fixedly connected with two fixed rods which are slidingly arranged in the vertical through grooves on the outside, the fixed rods are fixedly connected with the push plates 48 on the side away from the support rod 42, and the support plates 72 are fixedly connected with arc-shaped pressing plates 74 for limiting the push plates 48 through connecting rods on the side close to the support cylinder 41.

[0038] Please refer to Figure 2 andFigure 4 The guide part 6 comprises a disc 61 fixedly connected to the upper end of the supporting rod 42, and a plurality of guide holes 62 are equidistantly arranged on the circumferential direction of the upper end surface of the disc 61, and two guide rods 63 for cooperating with the guide holes 62 are symmetrically fixedly connected to the lower end of the Y-shaped auxiliary bracket 53.

[0039] Please refer to Figure 3 The chip collecting part 7 further comprises an arc-shaped box 73, and the arc-shaped box 73 is fixedly connected to the upper end surface of the supporting plate 72, and a plurality of liquid discharge holes are equidistantly arranged on the cavity bottom of the arc-shaped box 73 along the curvature direction of the arc-shaped box 73, and a plurality of rows of the liquid discharge holes are equidistantly arranged along the radial direction of the arc-shaped box 73.

[0040] The telescopic mechanism in the control moving assembly 51 is controlled to operate and elongate to drive the Y-shaped main bracket 52 and the Y-shaped auxiliary bracket 53 to move downward, and when the Y-shaped auxiliary bracket 53 moves downward by a first stroke, the spring telescopic rod 8 is pressed to drive the supporting rod 42 to move downward, and then the control moving assembly 51 drives the Y-shaped auxiliary bracket 53 to move downward by a second stroke, at this time, the spring telescopic rod 8 is gradually compressed, the Y-shaped main bracket 52 drives the drill rod 54 to move downward, so that the drill rod 54 abuts against the upper end surface of the valve assembly, and at the same time, the Y-shaped auxiliary bracket 53 drives the guide rod 63 to move downward and insert into the guide hole 62, and the guide rod 63 and the guide hole 62 are cooperated to guide the drill rod 54 to move downward.

[0041] The two supporting plates 72 are manually pushed to move close to each other, and at the same time, the supporting plates 72 also drive the arc-shaped box 73 to move, the two arc-shaped boxes 73 move close to each other, and finally abut together and are located on the lower end surface of the annular disc on the upper part of the valve assembly.

[0042] When the drill rod 54 abuts against the upper end surface of the valve assembly, the Y-shaped auxiliary bracket 53 drives the blocking ring 57 to abut against the upper end surface of the valve assembly before the drill rod 54, and then the drill rod 54 is controlled to rotate to drill the valve assembly, and when the drill rod 54 continuously moves downward, the sliding cylinder 56 is synchronously inserted into the sleeve 55, and then the drill rod 54 is controlled to rotate to drill the valve assembly, and the metal chips generated in the drilling process are covered in the inner cavity of the sliding cylinder 56 and the sleeve 55, and the drill rod 54 in work can be cooled by introducing the external cooling liquid into the upper port of the sleeve 55, after the drill rod 54 drills the valve assembly, the metal chips in the sliding cylinder 56 fall off from the drill hole and enter the arc-shaped box 73, and the cooling liquid used for cooling is also flowed into the arc-shaped box 73 from the drill hole and finally flows out from the liquid discharge hole.

[0043] Then the control moving assembly 51 drives the Y-shaped main bracket 52 and the Y-shaped auxiliary bracket 53 to move upwards, the Y-shaped main bracket 52 drives the drill rod 54 to move out of the valve assembly, and the Y-shaped auxiliary bracket 53 drives the sleeve 55 and the sliding cylinder 56 to move upwards synchronously with the drill rod 54, then the intermittent rotating mechanism in the control moving assembly 51 is controlled to drive the Y-shaped main bracket 52 and the Y-shaped auxiliary bracket 53 to rotate, so that the drill rod 54 is rotated to the lower drilling point position, and then the telescopic mechanism in the control moving assembly 51 is controlled to extend to perform the drilling operation, and the stop ring 57 always abuts against the upper surface of the valve assembly during the rotation and position adjustment of the drill rod 54, so that the metal chips generated during each drilling process are separated and covered, and the metal chips are prevented from accumulating on the valve assembly, and through the simultaneous operation of the plurality of circumferentially distributed drill rods 54, the drilling speed is accelerated, and the stability of the drill rod 54 is improved.

[0044] In operation, the valve assembly is sleeved outside the inner clamping mechanism 4, then the chip sealing and drilling part 5 is controlled to move downwards, the inner clamping mechanism 4 is triggered to move when the chip sealing and drilling part 5 moves downwards, so that the inner clamping mechanism 4 is automatically clamped and limited from the inside of the valve assembly, then the two supporting plates 72 in the chip collecting part 7 are manually pushed to move close to each other, the supporting plates 72 indirectly drive the arc-shaped pressing plate 74 to abut against the upper end surface of the push plate 48, so that the inner clamping mechanism 4 clamped with the valve assembly is locked and limited, then the chip sealing and drilling part 5 is controlled to move downwards again, so that the valve assembly is drilled, the metal chips generated during the drilling are covered by the sleeve 55 and the sliding cylinder 56, and after the drilling is completed, the metal chips fall into the chip collecting part 7 from the drill hole, the Y-shaped main bracket 52 in the chip sealing and drilling part 5 is controlled to rotate intermittently and circumferentially, so that the valve assembly can be quickly drilled, after the drilling is completed, the chip sealing and drilling part is controlled to move upwards and reset, and at the same time, the two supporting plates 72 in the chip collecting part 7 are manually pushed to move away from each other, so that the limitation of the inner clamping mechanism 4 is released, then the inner clamping mechanism 4 is reset to release the clamping of the valve assembly, finally, the valve assembly after the drilling is completed can be taken out, and the next valve assembly can be repeatedly placed outside the inner clamping mechanism 4 through the above steps.

[0045] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0046] In addition, the terms "first", "second", "one", "two" are only used for descriptive purposes and are not to be construed as indicating or implying relative importance or an indicated number of technical features. Therefore, the features defined with "first", "second", "one", "two" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, for example, two, three, etc., unless otherwise explicitly specified and limited.

[0047] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and other terms should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0048] The embodiments of the specific implementation are the preferred embodiments of the present application, and are not limited to the protection scope of the present application. Therefore, any equivalent changes made according to the structure, shape, principle of the present application should be covered within the protection scope of the present application.

Claims

1. A valve assembly drilling device, comprising a machining base (1), a bracket (2) respectively fixed to the upper end face of the machining base (1), and a working seat (3), characterized in that: The upper end face of the working seat (3) is equipped with an inner clamping mechanism (4) for clamping the valve assembly from the inside. The lower part of the transverse section of the bracket (2) is provided with a chip sealing drilling part (5) for drilling multiple holes in the valve assembly and concentrating the iron filings in each hole. The chip sealing drilling part (5) and the inner clamping mechanism (4) cooperate with each other to perform clamping, limiting and drilling operations on the valve assembly. The chip sealing drilling part (5) and the inner clamping mechanism (4) are provided with a guide part (6) for guiding the chip sealing drilling part (5) in the hole to cut in. The chip sealing drilling section (5) includes a Y-shaped main bracket (52) installed on the lower part of the transverse section of the support (2) by a control and movement component (51) and a Y-shaped auxiliary bracket (53) fixed to the lower end face of the Y-shaped main bracket (52) by a fixing column. Each section of the Y-shaped main bracket (52) is provided with a drill rod (54) at its lower end face. Each section end of the Y-shaped auxiliary bracket (53) is fixedly connected with a sleeve (55) that is slidably sleeved on the outside of the drill rod (54). The inner cavity of the sleeve (55) is slidably connected with a slide cylinder (56) that is sleeved on the outside of the drill rod (54). The lower end of the slide cylinder (56) is rotatably connected with a retaining ring (57). The work stand (3) is provided with a chip collection part (7) for cooperating with the chip sealing mechanism to collect the iron chips that leak out when the valve assembly is drilled through; The inner clamping mechanism (4) includes a support cylinder (41) fixedly connected to the upper end face of the working seat (3) and open at the top, and a support rod (42) slidably connected to the inner cavity of the support cylinder (41). The lower end of the support rod (42) is fixedly connected to the bottom of the cavity of the support cylinder (41) with a top spring. Several rectangular sleeves (43) are equidistantly connected around the outer circumference of the support cylinder (41), and the upper part of the rectangular sleeves (43) is provided with strip-shaped through grooves distributed radially along the support cylinder (41). The rectangular sleeves (43) are slidably connected to the inner cavity of the support cylinder (41). A push rod (44) is dynamically connected. A connecting rod (45) is hinged to the upper end face of the push rod (44) and located in the strip groove. The end of the connecting rod (45) away from the push rod (44) is hinged to the outer wall of the support rod (42). An arc-shaped clamping block (46) is fixedly connected to the side of the push rod (44) away from the rectangular sleeve (43). An auxiliary clamping unit (47) is provided on the arc-shaped clamping block (46) for contacting the upper surface of the valve assembly to further enhance the clamping stability of the valve assembly. The auxiliary clamping unit (47) includes an embedding groove (471) and an L-shaped clamping block (472). The arc-shaped clamping block (46) has an embedding groove (471) and the upper end face of the arc-shaped clamping block (46) is hinged to the L-shaped clamping block (472) located in the embedding groove (471) through a lug. The L-shaped clamping block (472) and the embedding groove (471) are fixedly connected together by a limit spring.

2. The valve assembly drilling device according to claim 1, characterized in that: The guide part (6) includes a disc (61) fixedly connected to the upper end of the support rod (42). The upper surface of the disc (61) is provided with a plurality of guide holes (62) equidistantly arranged in the circumferential direction. The lower end of the Y-shaped sub-bracket (53) is symmetrically fixedly connected with two guide rods (63) for cooperating with the guide holes (62).

3. The valve assembly drilling device according to claim 1, characterized in that: The chip collection part (7) can cooperate with the inner clamping mechanism (4) to lock the inner clamping mechanism (4) after clamping the valve assembly. The chip collection part (7) includes two sliding grooves (71) symmetrically opened on the upper surface of the working seat (3). Each sliding groove (71) is slidably connected with a support plate (72). An arc-shaped box (73) is fixedly connected to the upper surface of the support plate (72).

4. The valve assembly drilling device according to claim 3, characterized in that: The bottom of the arc-shaped box (73) is provided with a number of drainage holes at equal intervals along its own curvature direction, and the drainage holes are arranged in a number of rows at equal intervals along the radial direction of the arc-shaped box (73).

5. A valve assembly drilling device according to claim 3, characterized in that: Two vertical through slots are symmetrically opened on the support cylinder (41). Two fixed rods are symmetrically fixedly connected to the outside of the support rod (42) and slidably set in the vertical through slots. A lever plate (48) is fixedly connected to the side of the fixed rod away from the support rod (42). An arc-shaped pressure plate (74) for limiting the lever plate (48) is fixedly connected to the side of the support plate (72) close to the support cylinder (41) through a connecting rod.

6. A valve assembly drilling device according to claim 2, characterized in that: A spring telescopic rod (8) is fixedly connected to the center of the lower end face of the Y-shaped sub-bracket (53), and the disc (61) and the support rod (42) are provided with an insertion hole for the spring telescopic rod (8) to be inserted.

7. A valve assembly drilling device according to claim 1, characterized in that: The upper surface of the work base (3) is provided with several liquid guiding grooves (9) at equal intervals in the horizontal direction, and the liquid guiding grooves (9) are arranged in several rows at equal intervals in the longitudinal direction. The upper surface of the processing base (1) is provided with several flow guiding grooves (10) that are connected to the liquid guiding grooves (9).

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