CN115464176A - Machining device for drilling valve body shell - Google Patents

Abstract

The invention belongs to the technical field of valve body processing, in particular to a processing device for drilling a valve body shell, aiming at the problems that the position of the existing valve body is not easy to fix, the drilling inclination or the aperture change is easy to cause, the valve body needs to be clamped again after a mounting hole is processed, the labor intensity of workers is increased, and the working efficiency is reduced to a certain extent, the invention provides the following scheme, which comprises a clip-shaped bottom plate, wherein a transverse moving plate is arranged in the clip-shaped bottom plate, an assembly platform is arranged on the upper side of the transverse moving plate, a first driving mechanism for driving the assembly platform to move longitudinally is arranged in the transverse moving plate, and a second driving mechanism for driving the assembly platform to move transversely is arranged in the clip-shaped bottom plate; be equipped with first grip block and second grip block in the assembly platform respectively, effectual intensity of labour who has reduced the staff has increased work efficiency to a certain extent.

Description

A processing device for drilling a valve body shell

technical field

The invention relates to the technical field of valve body processing, in particular to a processing device for drilling a valve body shell.

Background technique

The valve is a pipeline accessory used to open and close the pipeline, control the flow direction, adjust and control the parameters (temperature, pressure and flow) of the conveying medium. The valve is a control component in the fluid conveying system. Functions such as reverse flow, voltage stabilization, shunt flow or overflow pressure relief. Valves used in fluid control systems range from the simplest cut-off valves to various valves used in extremely complex automatic control systems, with a wide variety of varieties and specifications.

The valve needs to be drilled during processing, and the following defects exist in the prior art when the valve is drilled:

1. The position of the valve body is not easy to fix, and it is easy to cause the drilling to be inclined or the hole diameter to change, making the entire workpiece a defective product and increasing the production cost;

2. Most of the fixing devices in the prior art cannot be adjusted. After the valve body has processed a mounting hole, the valve body needs to be re-clamped, which increases the labor intensity of the staff and reduces the work efficiency to a certain extent.

Contents of the invention

The purpose of the present invention is to solve the problems in the prior art that the position of the valve body is not easy to fix, it is easy to cause the drilling to be inclined or the aperture changes, and after processing a mounting hole, the valve body needs to be re-clamped, which increases the labor intensity of the staff. , to a certain extent reduces the shortcomings of work efficiency, and proposes a processing device for drilling holes in the valve body shell.

In order to achieve the above object, the present invention adopts the following technical solutions:

A processing device for drilling a valve body shell, comprising a back-shaped bottom plate, a traversing plate is arranged inside the back-shaped bottom plate, an assembly platform is arranged on the upper side of the traversing plate, and a utility The first drive mechanism to drive the longitudinal movement of the assembly platform, the second drive mechanism for driving the lateral position of the assembly platform is provided in the said return base plate; the first clamping plate and the second clamping plate are respectively provided in the said assembly platform The clamping plate, the side close to the first clamping plate and the second clamping plate are provided with a clamping block for clamping and fixing the valve body shell, the first clamping plate and the second clamping plate A set of clamping mechanisms for driving the clamping block to carry out clamping movement is provided in the plates, and a set of angle adjustment mechanisms for turning over the shell of the clamping valve body is provided in the first clamping plate; The top of the assembly platform is used to place the valve body casing when clamping and fixing the valve body casing. A group of lifting mechanisms are arranged inside the assembly platform, and the lifting mechanism is used to drive the first clip when the valve body casing is clamped and fixed. The holding plate, the second clamping plate and the fixed valve body shell are raised; the two ends of the back-shaped bottom plate are fixedly connected with the same inverted U frame, and the lower side of the inverted U frame is provided for the valve body shell A drill bit for drilling, a group of drilling mechanisms for driving the drill bit to work are arranged in the inverted U frame.

Preferably, the second drive mechanism includes two first grooves opened in the back-shaped bottom plate, one of the first grooves is fixedly connected with a first limit rod, and the other of the first grooves is The inner rotation is connected with a first driving screw, and the side end of the return-type bottom plate is fixedly connected with a first servo motor, and the first servo motor is connected with the first driving screw through a coupling. The sliding plate is connected to the peripheral surface of the first groove, and the traverse plate is screwed to the peripheral surface of the first driving screw rod.

Preferably, the first drive mechanism includes a second groove opened in the traversing plate, two second limit rods are fixedly connected in the second groove, and the two second limit rods The circumferential surface is slidably connected with a first threaded plate, and the second groove is rotatably connected with a second driving screw, and the first threaded plate is threadedly connected with the circumferential surface of the second driving screw, and the traversing plate The side end is fixedly connected with a second servo motor, the second servo motor is connected with the second driving screw through a coupling, and the assembly platform is fixedly connected with the top end of the first threaded plate.

Preferably, each set of clamping mechanisms includes a turntable that is rotatably connected to the first clamping plate, two fifth limit rods are slidably connected to the turntable, and the clamping block is fixedly connected to the two second stoppers. The side ends of the five limit rods, the side ends of the two fifth limit rods are all fixedly connected to the limit blocks, and a thread groove is opened in the turntable, and the thread groove internal thread is connected with a thread rod, and the thread The rod is rotatably connected to the side end of the clamping block.

Preferably, the angle adjustment mechanism includes a fifth groove opened in the first clamping plate, a worm wheel is fixedly connected to the peripheral surface of the turntable, a worm is rotatably connected in the fifth groove, and the worm and The worm gears are meshed, and the side end of the first clamping plate is fixedly connected with a third servo motor, and the third servo motor is connected with the worm through a coupling.

Preferably, the lifting mechanism includes a third groove and a fourth groove opened in the assembly platform and communicated with each other. Two fourth limit rods are fixedly connected in the third groove, and the two fourth The circumferential surface of the limiting rod is slidably connected with a lifting plate, and two third limiting rods are fixedly connected in the fourth groove, and the circumferential surfaces of the two third limiting rods are slidably connected with two second threads plate, the tops of the two second threaded plates are hinged with two support rods through hinge shafts, the top ends of the four support rods are hinged with the bottom end of the lifting plate through hinge shafts, and the fourth concave There is a two-way screw connected in the slot for rotation, and the two second threaded plates are respectively threaded on the positive and negative thread segments on the circumferential surface of the two-way screw, and the two-way screw moves outward through the side end of the assembly platform and outward Extending, the side end of the two-way screw rod is fixedly connected with a thumb screw head, and the first clamping plate and the second clamping plate are respectively fixedly connected to both sides of the top of the lifting plate.

Preferably, the drilling mechanism includes an electric push rod fixedly connected to the top of the inverted U frame, the output end of the electric push rod is fixedly connected with a return plate, and a drilling motor is fixedly connected in the return form plate, so The drilling motor is connected with the drill bit through a coupling.

Preferably, support legs are fixedly connected to four corners of the bottom end of the back-shaped bottom plate, and a waste collection box for collecting waste is provided between the four support legs.

Compared with prior art, the beneficial effect of the present invention is:

1. By placing the valve body shell on the top of the assembly platform and the parts on both sides of the valve body used to communicate with the pipeline correspond to the two clamping blocks respectively, twist the two threaded rods to drive the two clamping blocks from both sides The shell of the valve body is clamped and fixed. After the clamping and fixing is completed, the two-way screw rod is driven to rotate by twisting the hand screw head, and the rotation of the two-way screw drives the two second threaded plates to move in the direction away from each other. The second threaded plate drives the change of the position of the bottom end of the support rod, so that the support rod drives the lifting plate to move upward, and the lifting plate drives the first clamping plate and the second clamping plate to drive the clamped valve body shell to rise. drilling.

2. After the clamping and fixing of the valve body shell is completed, and the drilling on one side is completed, there is no need to release the clamping to manually change the angle of the valve body shell; by starting the first servo motor to drive the first drive screw to rotate forward or reverse The rotation can drive the assembly platform to move vertically left and right; by starting the second servo motor to drive the second drive screw to rotate forward or reverse, the second drive screw can be driven to drive the assembly platform to move horizontally left and right, so that the valve can be realized. The positioning of the X and Y dual coordinate axes of the body shell, at the same time, by starting the third servo motor to drive the worm to rotate, the worm rotates to drive the worm wheel to rotate, and the worm wheel rotates to drive the turntable and the valve body shell that is clamped and fixed to turn over. The drilling motor drives the drill bit to rotate and the electric push rod drives the drill bit to move down slowly, thereby completing the drilling of the valve body shell.

In the present invention, two sets of clamping mechanisms are used to drive two clamping blocks to fix the position of the valve body shell, which ensures the stability of clamping, does not easily cause drilling inclination or hole diameter changes, and reduces the probability of defective products. The production cost is reduced. Through the mutual cooperation of multiple groups of structures, the valve body does not need to be re-clamped after processing a mounting hole, which effectively reduces the labor intensity of the staff and increases the work to a certain extent. efficiency.

Description of drawings

Fig. 1 is a front perspective view of a processing device for drilling a valve body casing proposed by the present invention;

Fig. 2 is the first partial cross-sectional view of a processing device for drilling holes in a valve body shell proposed by the present invention;

Fig. 3 is the second partial cross-sectional view of a processing device for drilling a valve body casing proposed by the present invention;

Fig. 4 is the third partial cross-sectional view of a processing device for drilling a valve body shell proposed by the present invention;

Fig. 5 is a fourth partial sectional view of a processing device for drilling a valve body shell proposed by the present invention;

Fig. 6 is a fifth partial cross-sectional view of a processing device for drilling a valve body shell proposed by the present invention;

Fig. 7 is a first partial perspective view of a processing device for drilling a valve body shell proposed by the present invention;

Fig. 8 is a second partial perspective view of a processing device for drilling a valve body shell proposed by the present invention.

In the figure: 1. Back-type bottom plate; 2. Support legs; 3. Waste collection box; 4. Inverted U frame; 5. Traverse plate; 6. Assembly platform; 7. The first groove; 8. The first limit Position rod; 9, the first driving screw; 10, the first servo motor; 11, the second groove; 12, the second limit rod; 13, the first threaded plate; 14, the second driving screw; 15, The second servo motor; 16, the third groove; 17, the fourth groove; 18, the third limit rod; 19, the second threaded plate; 20, the fourth limit rod; 21, the support rod; 22, the lift Plate; 23, the first clamping plate; 231, the second clamping plate; 24, two-way screw; 25, hand screw head; 26, turntable; 27, clamping block; 28, the fifth limit rod; 29 , limit block; 30, threaded rod; 32, fifth groove; 33, worm; 34, worm gear; 35, electric push rod; 36, return plate; 37, drilling motor; 38, drill bit; 39, the first Three servo motors.

detailed description

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention.

Embodiment one

Referring to Figure 1-Figure 8,

A processing device for drilling the shell of a valve body, comprising a return-type bottom plate 1, a traverse plate 5 is arranged inside the return-type bottom plate 1, an assembly platform 6 is arranged on the upper side of the traverse plate 5, and a To drive the first driving mechanism for the longitudinal movement of the assembly platform 6, the second drive mechanism for driving the horizontal position of the assembly platform 6 is provided in the return-type bottom plate 1; the first clamping plate 23 and the second clamping plate 23 are respectively provided in the assembly platform 6 The clamping plate 231, the side close to the first clamping plate 23 and the second clamping plate 231 are all provided with a clamping block 27 for clamping and fixing the valve body shell, the first clamping plate 23 and the second clamping plate 231 Clamping plates 231 are provided with a set of clamping mechanisms for driving the clamping block 27 to carry out clamping movement, and a set of angle adjustment mechanisms for turning over the shell of the clamping valve body is provided in the first clamping plate 23 ; The top of the assembly platform 6 is used to place the valve body shell when clamping and fixing the valve body outer shell. A group of lifting mechanisms are arranged in the assembly platform 6. The lifting mechanism is used to drive the first clamping mechanism when the clamping and fixing of the valve body shell is completed. The plate 23, the second clamping plate 231 and the fixed valve body shell are raised; the two ends of the back-type bottom plate 1 are fixedly connected with the same inverted U frame 4, and the lower side of the inverted U frame 4 is provided for the valve body shell. Carry out the drill bit 38 of drilling, be provided with one group in order to drive the drilling mechanism of drill bit 38 to work in the inverted U frame 4; Drive two clamping blocks 27 and fix the position of the valve body shell by two groups of clamping mechanisms, have guaranteed The stability of the clamping is not easy to cause the inclination of the drilling hole or the change of the hole diameter, which reduces the probability of defective products and reduces the production cost. Through the mutual cooperation of multiple groups of structures, the valve body does not need to be used after processing a mounting hole. Re-clamping the valve body effectively reduces the labor intensity of the staff and increases work efficiency to a certain extent.

Embodiment two

A processing device for drilling the shell of a valve body, comprising a return-type bottom plate 1, a traverse plate 5 is arranged inside the return-type bottom plate 1, an assembly platform 6 is arranged on the upper side of the traverse plate 5, and a To drive the first driving mechanism for the longitudinal movement of the assembly platform 6, the second drive mechanism for driving the horizontal position of the assembly platform 6 is provided in the return-type bottom plate 1; the first clamping plate 23 and the second clamping plate 23 are respectively provided in the assembly platform 6 The clamping plate 231, the side close to the first clamping plate 23 and the second clamping plate 231 are all provided with a clamping block 27 for clamping and fixing the valve body shell, the first clamping plate 23 and the second clamping plate 231 Clamping plates 231 are provided with a set of clamping mechanisms for driving the clamping block 27 to carry out clamping movement, and a set of angle adjustment mechanisms for turning over the shell of the clamping valve body is provided in the first clamping plate 23 ; The top of the assembly platform 6 is used to place the valve body shell when clamping and fixing the valve body outer shell. A group of lifting mechanisms are arranged in the assembly platform 6. The lifting mechanism is used to drive the first clamping mechanism when the clamping and fixing of the valve body shell is completed. The plate 23, the second clamping plate 231 and the fixed valve body shell are raised; the two ends of the back-type bottom plate 1 are fixedly connected with the same inverted U frame 4, and the lower side of the inverted U frame 4 is provided for the valve body shell. The drill bit 38 for drilling is provided with a group of drilling mechanisms for driving the drill bit 38 to work in the inverted U frame 4; the second drive mechanism includes two first grooves 7 provided in the return-type base plate 1, one of which is A first limit rod 8 is fixedly connected to the first groove 7, a first driving screw 9 is rotatably connected to the other first groove 7, and a first servo motor 10 is fixedly connected to the side end of the return-type bottom plate 1. The first servo motor 10 is connected with the first drive screw 9 through a coupling, the traverse plate 5 is slidably connected to the circumferential surface of the first limit rod 8, and the traverse plate 5 is screwed to the first drive screw 9 Circumferential surface; by starting the first servo motor 10 to drive the first driving screw 9 to rotate forward or reverse, the assembly platform 6 can be driven to move longitudinally left and right; Groove 11, two second limit rods 12 are fixedly connected in the second groove 11, the circumferential surfaces of the two second limit rods 12 are slidably connected with a first threaded plate 13, and the second groove 11 is rotationally connected There is a second driving screw 14, the first threaded plate 13 is threadedly connected to the circumferential surface of the second driving screw 14, the side end of the traverse plate 5 is fixedly connected with a second servo motor 15, and the second servo motor 15 is connected through a coupling The device is connected with the second driving screw 14, and the assembly platform 6 is fixedly connected to the top of the first threaded plate 13; the second driving screw 14 can be driven forward or reversely by starting the second servo motor 15. The driving screw 14 drives the assembly platform 6 to move laterally left and right; each set of clamping mechanisms includes a turntable 26 rotatably connected to the first clamping plate 23, and two fifth limit rods 28 are slidably connected to the turntable 26, The clamping block 27 is fixedly connected to the side ends of the two fifth limit rods 28, and the side ends of the two fifth limit rods 28 are fixedly connected to the limit block 29, and a thread groove is provided in the rotating disk 26, and the thread groove internal thread even Connected with a threaded rod 30, the threaded rod 30 is rotatably connected to the side end of the clamping block 27; by placing the valve body shell on the top of the assembly platform 6 and connecting the parts on both sides of the valve body with the two clamping parts respectively The block 27 is corresponding, twisting two threaded rods 30 drives two clamping blocks 27 to clamp and fix the valve body shell from both sides; the angle adjustment mechanism includes the fifth groove opened in the first clamping plate 23 32. A worm wheel 34 is fixedly connected to the peripheral surface of the turntable 26, a worm 33 is rotatably connected in the fifth groove 32, the worm 33 and the worm wheel 34 are engaged, and the side end of the first clamping plate 23 is fixedly connected to a third servo motor 39 , the third servo motor 39 is connected with the worm screw 33 through a shaft coupling; at the same time, by starting the third servo motor 39, the worm screw 33 is driven to rotate, and the rotation of the worm screw 33 drives the worm wheel 34 to rotate, and the rotation of the worm wheel 34 drives the turntable 26 and is clamped and fixed The shell of the valve body is reversed; the lifting mechanism includes a third groove 16 and a fourth groove 17 communicated in the assembly platform 6, and two fourth limit rods 20 are fixedly connected in the third groove 16. , the circumferential surfaces of the two fourth limiting rods 20 are slidingly connected with the lifting plate 22, the fourth groove 17 is fixedly connected with the two third limiting rods 18, and the circumferential surfaces of the two third limiting rods 18 are slidingly connected There are two second threaded plates 19, the tops of the two second threaded plates 19 are hinged with two support rods 21 through the hinge shaft, and the tops of the four support rods 21 are all hinged to the bottom of the lifting plate 22 through the hinge shaft. end, the fourth groove 17 is rotationally connected with a two-way screw rod 24, and two second threaded plates 19 are respectively threaded on the positive and negative thread segments on the circumferential surface of the two-way screw rod 24, and the two-way screw rod 24 moves outwards through the assembly platform The side end of 6 extends outwards, the side end of the two-way screw rod 24 is fixedly connected with a thumb screw head 25, and the first clamping plate 23 and the second clamping plate 231 are respectively fixedly connected to both sides of the top of the lifting plate 22; The two-way screw mandrel 24 is driven to rotate by twisting the hand screw head 25, and the two-way screw mandrel 24 rotates to drive the two second threaded plates 19 to move towards the direction away from each other, and the two second threaded plates 19 drive the bottom of the support rod 21 The change of the end position makes the support rod 21 drive the lifting plate 22 to move upward, and the lifting plate 22 thus drives the first clamping plate 23 and the second clamping plate 231 to drive the clamped valve body shell to rise to drill holes; Mechanism comprises the electric push rod 35 that is fixedly connected on the inverted U frame 4 tops, and the output end of electric push rod 35 is fixedly connected with return type plate 36, and is fixedly connected with drilling motor 37 in the return type plate 36, and drilling motor 37 is connected with announcement. The patent No. CN215436256U is the same, the drilling motor 37 is connected with the drill bit 38 through the shaft coupling; the drilling motor 37 drives the drill bit 38 to rotate and the electric push rod 35 drives the drill bit 38 to move down slowly, thereby completing the valve body. Drilling holes in the casing; a waste collection box 3 for collecting waste is provided between the four support legs 2; it is convenient for the collection and arrangement of waste generated by drilling.

In the present invention, by placing the valve body shell on the top of the assembly platform 6 and the parts on both sides of the valve body used to communicate with the pipelines respectively correspond to the two clamping blocks 27, two threaded rods 30 are screwed to drive the two clamping blocks. The holding block 27 clamps and fixes the valve body shell from both sides. After the clamping and fixing is completed, the two-way screw rod 24 is driven to rotate by twisting the hand screw head 25, and the two-way screw rod 24 rotates to drive the two second threaded plates. 19 moves toward the direction away from each other, and the two second threaded plates 19 drive the change of the bottom end position of the support rod 21, so that the support rod 21 drives the lifting plate 22 to move upward, and the lifting plate 22 drives the first clamping plate 23 And the second clamping plate 231 drives the clamped valve body shell to rise to drill holes; after the clamping and fixing of the valve body shell is completed, and after the drilling on one side is completed, there is no need to release the clamping and manually change the angle of the valve body shell; By starting the first servo motor 10 to drive the first driving screw 9 to rotate forward or reversely, the assembly platform 6 can be driven to move vertically left and right; by starting the second servo motor 15, the second driving screw 14 can be driven to rotate forward or backward. Reverse rotation can drive the second driving screw 14 to drive the assembly platform 6 to move horizontally left and right, so that the positioning of the X and Y dual coordinate axes of the valve body shell can be realized, and at the same time, the third servo motor 39 is started to drive the worm 33 to rotate. The rotation of the worm 33 drives the worm wheel 34 to rotate, and the rotation of the worm wheel 34 drives the turntable 26 and the clamped and fixed valve body shell to turn over the surface. By starting the drilling motor 37, the drill bit 38 is driven to rotate and the electric push rod 35 drives the drill bit 38 to move slowly. Move down to complete the drilling of the valve body shell.

However, as is well known to those skilled in the art, the working principles and wiring methods of the first servo motor 10, the second servo motor 15, the drilling motor 37 and the third servo motor 39 are commonplace, and they all belong to conventional means or known methods. Common sense is not repeated here, and those skilled in the art can make arbitrary selections according to their needs or convenience.

The above is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto, any person familiar with the technical field within the technical scope disclosed in the present invention, according to the technical solution of the present invention Any equivalent replacement or change of the inventive concepts thereof shall fall within the protection scope of the present invention.

Claims (8)

1. The utility model provides a processingequipment that drilling of valve body shell was used, includes back type bottom plate (1), its characterized in that: a transverse moving plate (5) is arranged in the clip-shaped bottom plate (1), an assembling platform (6) is arranged on the upper side of the transverse moving plate (5), a first driving mechanism used for driving the assembling platform (6) to move longitudinally is arranged in the transverse moving plate (5), and a second driving mechanism used for driving the assembling platform (6) to move transversely is arranged in the clip-shaped bottom plate (1);

a first clamping plate (23) and a second clamping plate (231) are respectively arranged in the assembling platform (6), clamping blocks (27) used for clamping and fixing the valve body shell are respectively arranged on the sides, close to each other, of the first clamping plate (23) and the second clamping plate (231), a group of clamping mechanisms used for driving the clamping blocks (27) to perform clamping movement are respectively arranged in the first clamping plate (23) and the second clamping plate (231), and a group of angle adjusting mechanisms used for turning over the clamped valve body shell are arranged in the first clamping plate (23);

the top end of the assembly platform (6) is used for placing the valve body shell when clamping and fixing the valve body outer sleeve, a group of lifting mechanisms are arranged in the assembly platform (6), and the lifting mechanisms are used for driving the first clamping plate (23), the second clamping plate (231) and the fixed valve body shell to ascend when clamping and fixing of the valve body shell are completed;

the utility model discloses a drilling machine, including shape bottom plate (1), the both ends fixedly connected with of returning type bottom plate (1) is same frame (4) of falling the U, the downside of frame (4) of falling the U is equipped with drill bit (38) that are used for going on drilling to the valve body shell, be equipped with a set of drilling mechanism that is used for driving drill bit (38) to carry out work in frame (4) of falling the U.

2. The machining device for drilling the valve body shell is characterized in that the second driving mechanism comprises two first grooves (7) formed in the hollow bottom plate (1), one of the first grooves (7) is fixedly connected with a first limiting rod (8), the other first groove (7) is rotatably connected with a first driving screw rod (9), a first servo motor (10) is fixedly connected to the side end of the hollow bottom plate (1), the first servo motor (10) is connected with the first driving screw rod (9) through a coupler, the traverse plate (5) is slidably connected to the circumferential surface of the first limiting rod (8), and the traverse plate (5) is in threaded connection with the circumferential surface of the first driving screw rod (9).

3. The machining device for drilling the valve body shell is characterized in that the first driving mechanism comprises a second groove (11) formed in the traverse plate (5), two second limiting rods (12) are fixedly connected in the second groove (11), a first threaded plate (13) is slidably connected to the circumferential surface of the two second limiting rods (12), a second driving screw rod (14) is rotatably connected in the second groove (11), the first threaded plate (13) is in threaded connection with the circumferential surface of the second driving screw rod (14), a second servo motor (15) is fixedly connected to the side end of the traverse plate (5), the second servo motor (15) is connected with the second driving screw rod (14) through a coupler, and the assembling platform (6) is fixedly connected to the top end of the first threaded plate (13).

4. The machining device for drilling the valve body shell according to claim 3, characterized in that each group of the clamping mechanisms comprises a rotary table (26) rotatably connected in a first clamping plate (23), two fifth limiting rods (28) are slidably connected in the rotary table (26), the clamping block (27) is fixedly connected to the side ends of the two fifth limiting rods (28), the side ends of the two fifth limiting rods (28) are fixedly connected with limiting blocks (29), a thread groove is formed in the rotary table (26), a threaded rod (30) is connected to the thread groove in a threaded manner, and the threaded rod (30) is rotatably connected to the side end of the clamping block (27).

5. The machining device for drilling the valve body shell is characterized in that the angle adjusting mechanism comprises a fifth groove (32) formed in the first clamping plate (23), a worm wheel (34) is fixedly connected to the circumferential surface of the rotary disc (26), a worm (33) is rotatably connected to the fifth groove (32), the worm (33) is meshed with the worm wheel (34), a third servo motor (39) is fixedly connected to the side end of the first clamping plate (23), and the third servo motor (39) is connected with the worm (33) through a coupler.

6. The machining device for drilling the valve body shell according to claim 5, the lifting mechanism comprises a third groove (16) and a fourth groove (17) which are communicated with each other and arranged in the assembling platform (6), two fourth limiting rods (20) are fixedly connected in the third groove (16), the circumferential surfaces of the two fourth limiting rods (20) are connected with lifting plates (22) in a sliding manner, two third limiting rods (18) are fixedly connected in the fourth groove (17), two second threaded plates (19) are connected on the circumferential surfaces of the two third limiting rods (18) in a sliding manner, two supporting rods (21) are movably hinged at the top ends of the two second threaded plates (19) through hinge shafts, the top ends of the four supporting rods (21) are movably hinged at the bottom ends of the lifting plates (22) through hinge shafts, a bidirectional screw rod (24) is rotationally connected in the fourth groove (17), the two second thread plates (19) are respectively in threaded connection with the positive and negative thread sections on the circumferential surface of the bidirectional screw rod (24), the bidirectional screw rod (24) is movably penetrated through the side end of the assembly platform (6) outwards and extends outwards, the side end of the bidirectional screw rod (24) is fixedly connected with a hand-screwed screw head (25), the first clamping plate (23) and the second clamping plate (231) are fixedly connected to two sides of the top end of the lifting plate (22) respectively.

7. The processing device for drilling the valve body shell according to claim 6, wherein the drilling mechanism comprises an electric push rod (35) fixedly connected to the top end of the inverted U-shaped frame (4), the output end of the electric push rod (35) is fixedly connected with a circular plate (36), a drilling motor (37) is fixedly connected in the circular plate (36), and the drilling motor (37) is connected with a drill bit (38) through a coupler.

8. The machining device for drilling the valve body shell according to any one of claims 1 to 7, characterized in that supporting legs (2) are fixedly connected to four corners of the bottom end of the square-bottom plate (1), and waste chip collecting boxes (3) for collecting waste chips are arranged among the four supporting legs (2).

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