CN117020709A - Auxiliary table for processing plunger pump cylinder body - Google Patents

Abstract

The invention relates to the technical field of plunger pump cylinder body processing, in particular to an auxiliary table for processing a plunger pump cylinder body, which comprises a shell, a machine tool body, a workbench and an installation table; the invention solves the problems that in the existing auxiliary table for processing the cylinder body of the plunger pump, the auxiliary tables of different models are needed to be matched with each other due to different sizes of the cylinder body, so that the manual replacement and installation are needed, time and labor are wasted, the precision of the auxiliary table is easily influenced during the manual installation, the positioning precision is inaccurate, the processing efficiency of the cylinder body of the plunger pump is influenced, and the positioning precision and the processing efficiency of the cylinder body of the plunger pump are ensured without changing the auxiliary table when the cylinder bodies of different models are processed.

Description

Auxiliary table for processing plunger pump cylinder body

Technical Field

The invention relates to the technical field of plunger pump cylinder body processing, in particular to an auxiliary table for processing a plunger pump cylinder body.

Background

The plunger pump cylinder processing auxiliary table is a tool or equipment specially used for processing a plunger pump cylinder, and the plunger pump is a device for bearing pressure through a plunger and pushing liquid to flow, wherein the cylinder is one of key components of the plunger pump, and high-precision processing is generally required.

In machining a cylinder of a plunger pump, an auxiliary stage for machining the cylinder of the plunger pump is generally used to ensure accuracy and efficiency of the machining process, and the main function of the auxiliary stage is to provide stable support and accurate positioning for the cylinder to ensure that the accuracy of the size and shape of the cylinder is maintained during the machining process. This helps to ensure that a satisfactory high quality plunger pump cylinder is ultimately produced.

In the existing auxiliary table for processing the cylinder body of the plunger pump, when the cylinder body is processed, the cylinder body of the plunger pump is required to be positioned and clamped, then the cylinder body of the plunger pump is installed on the auxiliary table, and finally, holes in the cylinder body of the plunger pump and the outer surface of the cylinder body are processed and molded through processing equipment.

In view of the above-described drawbacks, the present invention provides an auxiliary table for processing a cylinder of a plunger pump.

Disclosure of Invention

The invention aims to solve the technical problems that: in the existing auxiliary table for processing the plunger pump cylinder body, because the sizes of the cylinder bodies are different, the auxiliary tables with different models are required to be matched with each other, the auxiliary tables are required to be replaced and installed manually, and the accuracy of the auxiliary tables is easily affected during manual installation, so that the positioning accuracy is inaccurate, and the processing efficiency of the plunger pump cylinder body is affected.

The invention provides the following technical scheme: an auxiliary table for processing a plunger pump cylinder body comprises a shell, a machine tool body, a workbench and an installation table; the machine tool comprises a machine tool body, and is characterized in that a workbench is fixedly arranged on the machine tool body, and an installation table is fixedly arranged on the workbench, and is characterized in that: the cylinder body is positioned and fixed by the adjusting mechanism, and the cylinder body is radially expanded and deformed by the adjusting mechanism through positive and negative pressure generated by air.

When processing plunger pump cylinder body, in order to clamp the fixed with the plunger pump cylinder body, then need adjust the cylinder body of different model sizes through adjustment mechanism to make same auxiliary stand be applicable to different cylinder bodies, and guarantee the precision when processing of plunger pump cylinder body, the precision of location, thereby guarantee the machining precision of plunger pump cylinder body, and improve the machining precision of plunger pump cylinder body.

The adjusting mechanism comprises a rectangular table, a fixed block, a sliding block, a rotating block, a contact block and an expansion module; the bottom fixed mounting of rectangle platform is on the mount table, four fixed block is mutual symmetry fixed mounting respectively at the top of rectangle platform, and slidable mounting has the slider on the fixed block, the top of slider rotates and installs the rotor block, and the slider is through one-way slip, fixes a position the cylinder body to press from both sides tightly fixedly with the cylinder body through the rotor block rotation, the top fixed mounting of rotor block has the contact block, expansion module fixed mounting is in the centre of a circle position of rectangle platform, and expansion module passes through the malleation that pneumatic produced, becomes radial diameter grow, increases the area of contact with the cylinder body inner wall to fix the cylinder body.

The rotating block is of a semi-arc structure, the semi-arc structure rotates through pneumatic negative pressure, the angle of the rotating block is adjusted, and the outer wall of the cylinder body is mutually attached to and fixed with the contact block.

In order to enable the adjusting mechanism to be applicable to plunger pump cylinders of different models, the distance between the two sliding blocks is adjusted through sliding of the sliding blocks, so that plunger pump cylinders of different sizes can be installed on the rectangular table, simultaneously, the sliding blocks are used for guaranteeing centering of the plunger pump cylinders, the axes of the plunger pump cylinders and the axes of the rectangular table are mutually overlapped, positioning accuracy of the plunger pump cylinders is guaranteed, then the rotating blocks and the contact blocks clamp the cylinders to be fixed, the plunger pump cylinders are guaranteed to be not moved when being processed, processing accuracy of the plunger pump cylinders is reduced, the sliding blocks, the fixed blocks and the contact blocks on the rectangular table are clamped and fixed when the inner walls of the plunger pump cylinders are required to be processed, and the inner walls of the plunger pump cylinders are fixed through expansion of the expansion modules when the outer walls of the plunger pump cylinders are processed, so that the positioning accuracy of the plunger pump cylinders is guaranteed, and the plunger pump cylinders can be clamped and fixed simultaneously.

The fixing block is provided with a strip-shaped groove, the strip-shaped groove is provided with a plurality of rectangular grooves in an array, rectangular through holes are formed in two sides of each rectangular groove, a pressure spring is clamped in each rectangular groove, the top of each pressure spring is fixedly provided with a pressing block, the bottom of each pressing block is in sliding connection with each rectangular groove, and the front end of each fixing block is rotatably provided with a pressing rod; the pressing rod presses down the pressing block through pressure and enables the sliding block to move, so that a larger adjusting space is provided for the adjusting mechanism.

The briquetting is trapezium structure, and the both sides of briquetting are provided with the rectangle arch, the rectangle arch passes the rectangle through-hole, and the briquetting passes through trapezium structure, makes the slider unidirectional movement to in pressing the briquetting into the rectangle recess, restriction adjustment mechanism's displacement.

In order to realize the unidirectional sliding of the sliding block, the pressing block is required to be arranged on the fixed block, so that the sliding block can slide unidirectionally and cannot slide reversely, and when the sliding block slides across one pressing block, a sound can be emitted, the moving distance of the sliding block can be judged according to the sound, so that the same moving distance of each sliding block is ensured, the centering effect is carried out on the cylinder body of the plunger pump, meanwhile, the reverse sliding of the sliding block is limited, a supporting force is provided for the rotation clamping of the rotating block, the clamping and fixing of the cylinder body of the plunger pump are realized, the pressing block can be fully pressed downwards through the pressing rod, the pressing block vertically and downwards enters the rectangular groove, the outer side end of the pressing rod is higher than the inner side end of the pressing rod, and when the pressing rod moves downwards and is parallel to the horizontal line, the pressing block fully enters the rectangular groove, so that the reverse sliding of the sliding block is realized.

The inside of slider is hollow structure, and the bottom of slider is provided with the toper tooth, and the circular through-hole has been seted up to the slider other end, and the inside one end of slider rotates installs the connecting rod, the bottom fixed mounting of connecting rod has the telescopic link, telescopic link one end fixed mounting is on circular through-hole, circular through-hole rear end fixed mounting has the trachea, and the telescopic link is flexible through pneumatic negative pressure to the pulling rotating block rotates, will provide fixed power for adjustment mechanism.

After centering plunger pump cylinder body, the slider is in order to make the more stable that plunger pump cylinder body can press from both sides tightly, then need to bleed through the air pump for the inside telescopic link of slider forms negative pressure, thereby drives the telescopic link shrink, and stretches out and draws back through the telescopic link, drives the turning block and rotates, thereby press from both sides tightly fixedly to plunger pump cylinder body, is applicable to not the plunger pump cylinder body of equidimension and presss from both sides tightly fixedly, improves the positioning accuracy of plunger pump cylinder body.

The contact block is of a circular arc structure, a plurality of arc grooves are formed in the inner side of the contact block, friction force of the contact block is increased through the arc grooves, and stability of the adjusting mechanism is improved.

In order to ensure that the plunger pump cylinder body is axially displaced during processing, the friction force between the plunger pump cylinder body and the plunger pump cylinder body is increased through the arc-shaped groove on the contact block, so that the plunger pump cylinder body is ensured not to axially move on the axis under the action of radial clamping force and static friction force, and meanwhile, compared with a rectangular structure, the contact area of the arc-shaped structure is larger than that of the rectangular structure, and the friction force of the arc-shaped structure can be increased.

The expansion module comprises a cylinder, a strip-shaped block and a round cover, wherein the strip-shaped block is fixedly arranged around the cylinder, the round cover is fixedly arranged at the top end of the cylinder, the strip-shaped block is bent by pneumatic positive pressure and radially outwards moving, pressure is applied to the inside of the cylinder body, and the adjusting range of the adjusting mechanism is increased.

Can press from both sides tightly fixedly through expansion module to plunger pump cylinder body inner wall, can process plunger pump cylinder body outer wall, simultaneously, also can center the plunger pump cylinder body through expansion module to improve the machining precision and the machining efficiency of plunger pump cylinder body.

The cylinder is hollow structure, the bar through-hole has been seted up in the outside all around of cylinder, and the connecting block between two adjacent bar through-holes is scalable connecting block, the radial deformation of connecting block through the bar piece to change the height of connecting block, accelerate adjustment mechanism's regulation speed.

In order to ensure that the expansion module has a larger application range, the expansion module can be used for fixing plunger pump cylinders with different sizes, the height of the cylinder is reduced by the expansion of the connecting block, the radial outward moving distance of the bar block is ensured to be large enough, and the bar block is contacted with the inner wall of the plunger pump cylinder, so that the plunger pump cylinder is clamped and fixed, the plunger pump cylinders with different sizes can be used, and the machining precision and the machining efficiency of the plunger pump cylinder are improved.

The inner side of the strip-shaped block is fixedly provided with a plurality of air bags, the strip-shaped block is a flexible telescopic block, the strip-shaped block passes through pneumatic positive pressure and deforms radially, and the adjusting range of the adjusting mechanism is changed.

Because it can radially move and take place to warp to need the bar piece, then need to aerify the gasbag on the bar piece through the air pump for the gasbag inflation takes place to warp to drive the radial outside removal of bar piece, increase with the area of contact of plunger pump cylinder body inner wall, every gasbag communicates each other with an trachea alone, and fill the gasbag inside through the air pump with the air through the trachea, make the gasbag inflation, and press from both sides the plunger pump cylinder body tight fixedly, in order to improve the positioning accuracy of plunger pump cylinder body, simultaneously, the machining efficiency of plunger pump cylinder body has been improved.

The beneficial effects of the invention are as follows.

1. According to the invention, the adjusting mechanism is arranged on the mounting table of the machine tool body, so that the cylinder bodies with different types and sizes can be clamped and fixed through the adjusting mechanism, the auxiliary table is not required to be replaced manually, the manpower and time are saved, the clamping and fixing precision of the auxiliary table is ensured, and the positioning precision during processing and the processing efficiency of the plunger pump cylinder body are improved.

2. According to the invention, the expansion module is arranged on the adjusting mechanism, so that the cylinders with different inner diameters can be clamped and fixed through the expansion module, the outer sides of the cylinders can be clamped conveniently, the processing process of the cylinders is not influenced, and meanwhile, the processing precision and the processing efficiency of the cylinders are improved.

3. According to the invention, the sliding block is arranged on the adjusting mechanism, and the cylinder body can be centered through unidirectional sliding of the sliding block, so that positioning and clamping are performed for different cylinder bodies, and the applicability of the auxiliary table and the processing precision of the cylinder body are improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is a schematic perspective view of an adjusting mechanism according to the present invention.

Fig. 3 is a schematic perspective view of the fixing block, the pressing rod and the pressing block of the present invention.

Fig. 4 is a schematic perspective view of a side view fixing block, a pressure spring and a compression bar of the present invention.

Fig. 5 is a schematic perspective view of a fixing block according to the present invention.

Fig. 6 is a schematic perspective view of a compact according to the present invention.

Fig. 7 is a schematic view showing the internal perspective structure of the slider, the rotating block and the contact block of the present invention.

Fig. 8 is a schematic view showing an internal perspective structure of the expansion module of the present invention.

Fig. 9 is a cross-sectional view of the connection block of the present invention.

Fig. 10 is a cross-sectional view of the expansion module of the present invention in operation.

In the figure: 1. a housing; 2. a machine tool body; 3. an adjusting mechanism; 31. a rectangular table; 32. a fixed block; 321. a strip-shaped groove; 322. rectangular grooves; 323. rectangular through holes; 324. a pressure spring; 325. briquetting; 326. rectangular protrusions; 327. a compression bar; 33. a slide block; 331. conical teeth; 332. a circular through hole; 333. a connecting rod; 334. a telescopic rod; 335. an air pipe; 34. a rotating block; 35. a contact block; 351. an arc-shaped groove; 36. an expansion module; 361. a cylinder; 362. a bar block; 363. a dome; 364. a bar-shaped through hole; 365. a connecting block; 366. an air bag; 4. a work table; 5. and (5) a mounting table.

Detailed Description

In order to better understand the above technical solutions, the following detailed description will refer to the accompanying drawings and specific embodiments.

As shown in fig. 1, an auxiliary table for processing a plunger pump cylinder includes a housing 1, a machine tool body 2, a table 4, and a mounting table 5; the machine tool comprises a machine tool body 2, a workbench 4 is fixedly arranged on the machine tool body 2, an installation table 5 is fixedly arranged on the workbench 4, the machine tool further comprises an adjusting mechanism 3, the adjusting mechanism 3 is fixedly arranged on the installation table 5, the adjusting mechanism 3 enables the adjusting mechanism 3 to radially expand and deform through positive and negative pressure generated by pneumatic, expansion deformation rate is adjusted, and a cylinder body is positioned and fixed.

When processing plunger pump cylinder body, at first need fix plunger pump cylinder body centre gripping on the mount table 5 of lathe body 2, then fix a position the plunger pump cylinder body through adjustment mechanism 3, to the cylinder body of different model sizes, adjust through adjustment mechanism 3 to the plunger pump cylinder body of adaptation different model sizes, thereby improve plunger pump cylinder body machining precision, avoided the manual work to change, thereby lead to the precision to receive the influence, and, improved the efficiency of plunger pump cylinder body processing.

As shown in fig. 2, the adjusting mechanism 3 includes a rectangular table 31, a fixed block 32, a slider 33, a rotating block 34, a contact block 35, and an expansion module 36; the bottom fixed mounting of rectangle platform 31 is on mount table 5, four fixed block 32 each other symmetry fixed mounting is at the top of rectangle platform 31, and slidable mounting has slider 33 on the fixed block 32, the top rotation of slider 33 is installed rotor block 34, and slider 33 is through one-way slip, fixes a position the cylinder body to carry out clamping fixation with the cylinder body through rotor block 34 rotation, the top fixed mounting of rotor block 34 has contact block 35, expansion module 36 fixed mounting is in the centre of a circle position of rectangle platform 31, and expansion module 36 becomes radial diameter through pneumatic positive pressure that produces, increases the area of contact with the cylinder body inner wall, and fixes the cylinder body.

The rotating block 34 is of a semi-arc structure, the semi-arc structure rotates through pneumatic negative pressure, and the angle of the rotating block 34 is adjusted, so that the outer wall of the cylinder body and the contact block 35 are mutually attached and fixed.

When the plunger pump cylinder body is processed, the cylinder body is clamped and fixed on the mounting table 5 through the adjusting mechanism 3, firstly, the cylinder body is placed on the rectangular table 31 through an operator, the circle center of the cylinder body passes through the expansion module 36, then the sliding blocks 33 on the fixed block 32 are adjusted in a sliding mode, the four sliding blocks 33 on the rectangular table 31 slide for the same distance and are in mutual contact with the plunger pump cylinder body, the plunger pump cylinder body is centered, then the rotating block 34 is driven to rotate through pneumatic, the rotating block 34 drives the contact block 35 to rotate, the contact block 35 is in mutual contact with the outer surface of the plunger pump cylinder body, and the plunger pump cylinder body is clamped and fixed, so that radial displacement and axial displacement cannot occur when the plunger pump cylinder body is processed, and the plunger pump cylinder body is clamped and fixed, so that the processing precision of the plunger pump cylinder body and the processing efficiency of the plunger pump cylinder body are guaranteed.

As shown in fig. 2 to 6, the fixing block 32 is provided with a bar-shaped groove 321, the bar-shaped groove 321 is provided with a plurality of rectangular grooves 322 in an array manner, rectangular through holes 323 are formed on two sides of the rectangular grooves 322, a pressure spring 324 is clamped in the rectangular grooves 322, a pressing block 325 is fixedly arranged at the top of the pressure spring 324, the bottom of the pressing block 325 is in sliding connection with the rectangular grooves 322, and a pressing rod 327 is rotatably arranged at the front end of the fixing block 32; the pressing bar 327 presses down the pressing block 325 by pressure and moves the slider 33, providing a larger adjustment space for the adjustment mechanism 3.

The pressing block 325 is of a trapezoid structure, rectangular protrusions 326 are arranged on two sides of the pressing block 325, the rectangular protrusions 326 penetrate through rectangular through holes 323, the pressing block 325 enables the sliding block 33 to move unidirectionally through the trapezoid structure, the pressing block 325 is pressed into the rectangular groove 322, and displacement of the adjusting mechanism 3 is limited.

When the plunger pump cylinder is installed, the sliding block 33 is arranged on the fixing block 32 in a radial sliding manner, the pressing blocks 325 in the strip-shaped grooves 321 are subjected to downward pressure when the sliding block 33 slides in the sliding process, the pressing blocks 325 transmit the pressure to the pressure springs 324, the pressure springs 324 are compressed, the pressing blocks 325 enter the rectangular grooves 322, when the sliding block 33 passes through the sliding block 33 at the top of the pressing blocks 325, the pressing blocks 325 move upwards due to elastic potential energy of the pressure springs 324 and are clamped into the sliding block 33, reverse movement of the sliding block 33 is limited, and therefore the installation accuracy of the cylinder is guaranteed.

As shown in fig. 2 and 7, the inside of the sliding block 33 is of a hollow structure, the bottom of the sliding block 33 is provided with conical teeth 331, the other end of the sliding block 33 is provided with a circular through hole 332, one end of the inside of the sliding block 33 is rotatably provided with a connecting rod 333, the bottom of the connecting rod 333 is fixedly provided with a telescopic rod 334, one end of the telescopic rod 334 is fixedly arranged on the circular through hole 332, the rear end of the circular through hole 332 is fixedly provided with an air pipe 335, the telescopic rod 334 stretches and contracts through pneumatic negative pressure, and the rotating block 34 is pulled to rotate, so that fixed power is provided for the adjusting mechanism 3.

After the plunger pump cylinder body is positioned and fixed, the sliding block 33 can not reversely slide through the conical teeth 331 at the bottom of the sliding block 33, meanwhile, gas is pumped out of the telescopic rod 334 through the air pump, the telescopic rod 334 is contracted along with the taking out of the gas, the telescopic rod 334 drives the connecting rod 333 to rotate, the other end of the connecting rod 333 drives the rotating block 34 to rotate, so that the rotating block 34 drives the contact block 35 to move and mutually contact with the plunger pump cylinder body, the plunger pump cylinder body is clamped and fixed, and the plunger pump cylinder body is machined.

As shown in fig. 7, the contact block 35 has a circular arc structure, and a plurality of arc grooves 351 are formed on the inner side of the contact block 35, and the contact block 35 increases friction force through the arc grooves 351 and increases stability of the adjusting mechanism 3.

In the process of moving the rotating block 34, the contact block 35 is driven to approach the plunger pump cylinder body, and the arc-shaped groove 351 on the contact block 35 is contacted with the plunger pump cylinder body, so that the plunger pump cylinder body is clamped and fixed.

As shown in fig. 2, 8 and 10, the expansion module 36 includes a cylinder 361, a bar block 362 and a round cap 363, the bar block 362 is fixedly installed around the cylinder 361, the round cap 363 is fixedly installed at the top end of the cylinder 361, the bar block 362 is bent by moving radially outwards through pneumatic positive pressure, and applies pressure to the interior of the cylinder body, so as to increase the adjustment range of the adjustment mechanism 3.

When the plunger pump cylinder is placed on the rectangular table 31, the expansion module 36 will pass through the plunger pump cylinder, the air pump is started, and then the cylinder 361 is inflated, so that the middle position of the bar block 362 moves radially outwards and contacts with the inner wall of the plunger pump cylinder, and at the same time, the cylinder 361 will shrink, so that the bar block 362 can better contact with the inner wall of the plunger pump cylinder, thereby fixing the cylinder and processing the outer wall of the cylinder.

As shown in fig. 2, 8, 9 and 10, the cylinder 361 has a hollow structure, the outer sides of the periphery of the cylinder 361 are provided with strip-shaped through holes 364, a connecting block 365 between two adjacent strip-shaped through holes 364 is a telescopic connecting block 365, the connecting block 365 deforms radially through the strip-shaped block 362, the height of the connecting block 365 is changed, and the adjusting speed of the adjusting mechanism 3 is accelerated.

When the plunger pump cylinder body is clamped, the connecting block 365 on the cylinder 361 is pumped out by the air pump from the bottom of the cylinder 361 along with the radial outward movement of the bar block 362, and the connecting block 365 is contracted by the air pump, so that the cylinder 361 is contracted, the radial outward movement of the bar block 362 is ensured to be farther, and the plunger pump cylinder body is ensured to be clamped and fixed.

As shown in fig. 2, 8 and 10, a plurality of air bags 366 are fixedly mounted on the inner side of the bar block 362, the bar block 362 is a flexible and telescopic block, and the bar block 362 is pneumatically and positively pressed and radially deformed, so that the adjustment range of the adjustment mechanism 3 is changed.

When the inner wall of the plunger pump cylinder body is clamped and fastened, the air pump is started, air is filled into the air bags 366 in the strip-shaped blocks 362 through the air pipes, the air bags 366 are inflated, the strip-shaped blocks 362 move radially outwards and deform, the plunger pump cylinder body is clamped and fixed, and the processing efficiency of the plunger pump cylinder body is improved.

During operation, when processing plunger pump cylinder body, firstly, need fix plunger pump cylinder body centre gripping on the mount table 5 of lathe body 2, fix the cylinder body centre gripping on mount table 5 through adjustment mechanism 3, at first, put the cylinder body on rectangular table 31 through operating personnel, the expansion module 36 is passed to the centre of a circle of cylinder body, then slide the slider 33 on the fixed block 32 of regulation, slider 33 is in the gliding in-process, briquetting 325 in the bar recess 321 will receive the gliding time decurrent pressure of slider 33, briquetting 325 will pressure transfer to pressure spring 324 on, make pressure spring 324 will be compressed, briquetting 325 will get into rectangular groove 322 inside, after slider 33 passes from briquetting 325 top slider 33, briquetting 325 will have because pressure spring 324's elasticity potential energy upwards move, and with briquetting 325 card in slider 33, through slider 33 bottom's conical tooth 331 can make slider 33 reverse slip, simultaneously, take out in the telescopic link 334 follow the telescopic link 334, simultaneously, the connecting link 333 other end then drives the slider 34 and then makes the radial displacement pump cylinder body of plunger pump cylinder body 35 and the radial displacement of the plunger pump cylinder body of the contact with the fixed block 34, thereby can's the radial displacement of plunger pump cylinder body is processed in order to the radial displacement of the fixed cylinder body 35.

The expansion module 36 inside the plunger pump cylinder body passes through the circle center of the plunger pump cylinder body, the air pump is started, then the cylinder 361 is inflated, the air pump fills air into the air bag 366 inside the bar block 362, the air bag 366 is inflated, the bar block 362 moves radially outwards and deforms, the plunger pump cylinder body is clamped and fixed to be in contact with the inner wall of the plunger pump cylinder body, meanwhile, the cylinder 361 draws out air from the inner part of the connecting block 365, the connecting block 365 is contracted, the cylinder 361 is contracted, the bar block 362 can be in better contact with the inner wall of the plunger pump cylinder body, the cylinder body is fixed, and the outer wall of the cylinder body is machined.

When the plunger pump cylinder is finished, the operator presses the pressing rod 327, the pressing rod 327 moves downward, and applies downward pressure to the rectangular protrusions 326, so that all the pressing blocks 325 move downward, the pressure springs 324 are compressed, the pressing blocks 325 are separated from the sliding blocks 33, and the sliding blocks 33 can slide in opposite directions, so that the plunger pump cylinder is removed.

The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (10)

1. An auxiliary table for processing a plunger pump cylinder body comprises a shell (1), a machine tool body (2), a workbench (4) and a mounting table (5); the machine tool is characterized in that a workbench (4) is fixedly arranged on the machine tool body (2), and an installation table (5) is fixedly arranged on the workbench (4): the cylinder body positioning device is characterized by further comprising an adjusting mechanism (3), wherein the adjusting mechanism (3) is fixedly arranged on the mounting table (5), and the adjusting mechanism (3) enables the adjusting mechanism (3) to radially expand and deform through positive and negative pressure generated by air, adjusts the expansion deformation rate and positions and fixes the cylinder body.

2. The auxiliary table for processing a cylinder of a plunger pump according to claim 1, wherein: the adjusting mechanism (3) comprises a rectangular table (31), a fixed block (32), a sliding block (33), a rotating block (34), a contact block (35) and an expansion module (36); the bottom fixed mounting of rectangle platform (31) is on mount table (5), four fixed block (32) each other symmetry fixed mounting is at the top of rectangle platform (31), and slidable mounting has slider (33) on fixed block (32), slider (33) top rotation is installed and is rotated piece (34), and slider (33) are through one-way slip, fix a position the cylinder body to press from both sides tightly fixedly with the cylinder body through rotating piece (34) rotation, the top fixed mounting of rotating piece (34) has contact block (35), expansion module (36) fixed mounting is in the centre of a circle position of rectangle platform (31), and expansion module (36) are through pneumatic positive negative pressure that produces, grow radial diameter, increase and the area of contact of cylinder body inner wall to fix the cylinder body.

3. The auxiliary table for processing a cylinder of a plunger pump according to claim 2, wherein: the fixing block (32) is provided with a strip-shaped groove (321), the strip-shaped groove (321) is provided with a plurality of rectangular grooves (322) in an array mode, rectangular through holes (323) are formed in two sides of each rectangular groove (322), a pressure spring (324) is clamped in each rectangular groove (322), a pressing block (325) is fixedly arranged at the top of each pressure spring (324), the bottom of each pressing block (325) is connected with the corresponding rectangular groove (322) in a sliding mode, and a pressing rod (327) is rotatably arranged at the front end of each fixing block (32); the pressing rod (327) presses down the pressing block (325) through pressure and moves the sliding block (33), so that a larger adjusting space is provided for the adjusting mechanism (3).

4. The auxiliary table for processing a cylinder of a plunger pump according to claim 2, wherein: the pressing block (325) is of a trapezoid structure, rectangular protrusions (326) are arranged on two sides of the pressing block (325), the rectangular protrusions (326) penetrate through the rectangular through holes (323), the pressing block (325) enables the sliding block (33) to move unidirectionally through the trapezoid structure, the pressing block (325) is pressed into the rectangular grooves (322), and displacement of the adjusting mechanism (3) is limited.

5. The auxiliary table for processing a cylinder of a plunger pump according to claim 2, wherein: the inside of slider (33) is hollow structure, and the bottom of slider (33) is provided with toper tooth (331), and circular through-hole (332) have been seted up to the slider (33) other end, and connecting rod (333) are installed in the rotation of the inside one end of slider (33), the bottom fixed mounting of connecting rod (333) has telescopic link (334), telescopic link (334) one end fixed mounting is on circular through-hole (332), circular through-hole (332) rear end fixed mounting has trachea (335), and telescopic link (334) are flexible through pneumatic negative pressure to pulling rotating block (34) rotate, will provide fixed power for adjustment mechanism (3).

6. The auxiliary table for processing a cylinder of a plunger pump according to claim 2, wherein: the rotating block (34) is of a semi-arc structure, the semi-arc structure rotates through pneumatic negative pressure, the angle of the rotating block (34) is adjusted, and the outer wall of the cylinder body and the contact block (35) are mutually attached and fixed.

7. The auxiliary table for processing a cylinder of a plunger pump according to claim 2, wherein: the contact block (35) is of a circular arc structure, a plurality of arc-shaped grooves (351) are formed in the inner side of the contact block (35), friction force of the contact block (35) is increased through the arc-shaped grooves (351), and stability of the adjusting mechanism (3) is improved.

8. The auxiliary table for processing a cylinder of a plunger pump according to claim 1, wherein: the expansion module (36) comprises a cylinder (361), a strip-shaped block (362) and a round cover (363), the strip-shaped block (362) is fixedly installed around the cylinder (361), the round cover (363) is fixedly installed at the top end of the cylinder (361), the strip-shaped block (362) moves outwards in the radial direction through pneumatic positive pressure to bend, pressure is applied to the inside of the cylinder body, and the adjustment range is increased for the adjustment mechanism (3).

9. The auxiliary table for processing a cylinder of a plunger pump according to claim 8, wherein: the cylinder (361) is of a hollow structure, strip-shaped through holes (364) are formed in the outer side of the periphery of the cylinder (361), connecting blocks (365) between two adjacent strip-shaped through holes (364) are telescopic connecting blocks (365), the connecting blocks (365) deform radially through the strip-shaped blocks (362) and change the height of the connecting blocks (365) so as to accelerate the adjusting speed of the adjusting mechanism (3).

10. The auxiliary table for processing a cylinder of a plunger pump according to claim 8, wherein: the inner side of the bar-shaped block (362) is fixedly provided with a plurality of air bags (366), the bar-shaped block (362) is a flexible telescopic block, the bar-shaped block (362) is subjected to pneumatic positive pressure and radial deformation, and the adjusting range of the adjusting mechanism (3) is changed.