CN103862409B - Servo valve body assembling tooling - Google Patents

Abstract

The invention relates to a servo valve body assembling tooling. The servo valve body assembling tooling is characterized in that a left shaft is installed on a support on the left side, a right shaft is installed on a support on the right side and a handle assembly is installed at the outer end of the left shaft; an upper mounting plate is arranged between the supports on the left and right sides, and the left side and the right of the upper mounting plate are respectively and fixedly connected onto the left shaft and the right shaft; the bottom of a turntable is rotatably installed on the upper mounting plate; a four-pin positioning vertical plate and a vertical positioning plate are fixedly arranged on the turntable, positioning pins are installed on the positioning side surfaces of the four-pin positioning vertical plates, a vertical stud is installed at the top of the vertical positioning plate, and a pressing plate is installed on the stud; a splayed positioner is arranged below the upper mounting plate and is fixedly arranged on a main body bottom plate, and a vertical adjustable bumper and a horizontal adjustable bumper are installed on the splayed positioner; a positioning plate is arranged on the rear side of the upper mounting plate and a positioning push pin is installed in a positioning installation hole in the positioning plate through a spring assembly; holes are formed in the periphery of the turntable and positioning taper sleeves are installed in the holes. The servo valve body assembling tooling has the advantages that the angle can be freely adjusted, the tooling is convenient to operate on the whole and the visibility is proper.

Description

Servo valve body assembly tooling

technical field

The invention relates to tooling equipment for hydraulic components, in particular to a tooling body for assembling a servo valve body, which is suitable for the technical field of construction machinery equipment assembly.

Background technique

The servo valve body is an important part of the P090 variable displacement plunger pump. Due to the reversing performance, pressure loss, internal leakage, reciprocating reversing and reset time, reversing frequency and service life of the plunger pump to the servo valve body, etc. The performance requirements are very high, and the assembly precision requirements are even higher. Originally, when assembling the servo valve body, only a flat-nose pliers was placed on the assembly table for assembly. The servo valve body is small in size, and it often forms arbitrary inversions in the assembly procedure, and no specific assembly specifications can be formed in the system, especially in assembly and disassembly. In the repeated process of inspection and debugging, it is easy to cause the parts to lose precision, and the assembly efficiency is low. The "assembly standardization" and "assembly process" of the servo valve body have not been realized, and the requirements of modern production cannot be met.

Contents of the invention

The purpose of the present invention is to overcome the deficiencies in the prior art and provide a servo valve body assembly tool, which has an ingenious and reasonable structure and precise positioning, which can make the servo valve body assemble smoothly, the angle can be adjusted arbitrarily, the overall operation is convenient, and it can be seen The sex is just right.

According to the technical solution provided by the present invention: servo valve body assembly tooling, including locking cover, bracket, left shaft, upper plate, turntable, four-pin positioning vertical plate, pressure plate, knurled lock nut, double-headed stud, vertical Positioning plate, main body bottom plate, figure-of-eight locator, vertical adjustable bumper, horizontal adjustable bumper, right shaft, positioning pin, positioning taper pin, positioning taper sleeve and short handle; brackets are provided on the left and right sides of the main body bottom , the left shaft is rotatably installed on the left bracket through a copper sleeve, the outer end of the left shaft is locked and fixed by a locking cover, the right shaft is rotatably installed on the right bracket through a copper sleeve, and the outer end of the right shaft is installed The handle assembly is locked and fixed by the locking cover; the upper board is arranged between the brackets on the left and right sides, the left side of the upper board is fixedly connected to the inner end of the left shaft, and the right side of the upper board is fixedly connected to the inner end of the right shaft; The center of the upper board is provided with a mounting hole, and the center of the bottom of the turntable is provided with a rotating shaft, which is rotatably installed in the mounting hole through a copper sleeve and locked and fixed by a locking cover; the four-pin positioning vertical plate and the vertical positioning plate are fixed on the On the turntable, the positioning side of the four-pin positioning vertical plate and the positioning side of the vertical positioning plate are perpendicular to each other, and positioning pins are installed on the positioning side of the four-pin positioning vertical plate; vertical studs are installed on the top of the vertical positioning plate, and the pressure plate Installed on the double-ended stud and locked and fixed by the knurled lock nut; the figure-of-eight locator is set under the upper board, the figure-of-eight locator is fixed on the bottom plate of the main body, and the figure-of-eight locator is installed with a vertically adjustable bumper and The horizontally adjustable bumper, the vertically adjustable bumper and the threaded rod body of the horizontally adjustable bumper are equipped with locking nuts; The taper pin is installed in the positioning installation hole through a spring assembly, and a short handle is installed at the rear end of the positioning taper pin; there are four holes uniformly distributed along the circumference of the turntable, and each hole is equipped with a The positioning cone sleeve.

As a further improvement of the present invention, the left side of the upper board is fixed on the left shaft through the upper board bracket key, set screws and countersunk screws, the upper board and the upper board bracket clamp the inner end of the left shaft and pass through The head screw and the set screw are fixed, and the upper board and the left shaft are connected by a key; the right side of the upper board and the right shaft are connected in the same way.

As a further improvement of the present invention, the four-pin positioning vertical plate is fixed on the turntable by screws and conical pins, and the vertical positioning plate is fixed on the turntable by screws.

As a further improvement of the present invention, the handle assembly includes a handle sleeve, a handle shaft, a long handle and a key, the handle sleeve is fixedly mounted on the right shaft through the key, one end of the handle shaft is connected to the handle sleeve, and the other end of the handle shaft is installed with a long handle .

As a further improvement of the present invention, a nylon washer is installed at the center of the top surface of the turntable through a cross-recessed countersunk screw.

As a further improvement of the present invention, nylon bumpers are respectively installed on the bumpers of the vertically adjustable bumper and the horizontally adjustable bumper through cross-recessed countersunk screws.

As a further improvement of the present invention, the spring assembly includes a spring tightening nut, a positioning sleeve and a spring, the positioning sleeve is screwed in the positioning installation hole, and the positioning taper pin is installed in the positioning sleeve and is screwed on both sides of the inner hole of the positioning sleeve. The spring at the end of the spring tightens the nut to limit the position, and the positioning cone pin can move axially. The spring is set on the positioning cone pin.

As a further improvement of the present invention, the locking covers on the left shaft, the right shaft and the rotating shaft are all fixed by Phillips countersunk screws.

Compared with the prior art, the present invention has the following advantages:

(1) After the servo valve body assembly tooling of the present invention is formed, since two references, the plane reference and the vertical reference, are given, the positioning is accurate, and the servo valve body can be assembled smoothly.

(2) The rotation mechanism in the servo valve body assembly tool of the present invention can rotate 360°, and the angle can be adjusted arbitrarily.

(3) The overall operation of the servo valve body assembly tooling of the present invention is convenient, and the visibility is just right.

Description of drawings

Fig. 1 is a structural front view of an embodiment of the present invention.

Fig. 2 is a left side view of Fig. 1 .

FIG. 3 is a top view of FIG. 1 .

Detailed ways

The present invention will be further described below in conjunction with specific drawings and embodiments.

As shown in the figure: the servo valve body assembly tooling in the embodiment is mainly composed of a locking cover 1, a bracket 2, a left shaft 3, an upper sub-plate bracket 4, an upper sub-plate 5, a turntable 6, a four-pin positioning vertical plate 7, and a pressure plate 8. Knurled lock nut 9, double-headed stud 10, vertical positioning plate 11, copper sleeve 12, handle cover 13, handle shaft 14, long handle 15, main body bottom plate 16, screw 17, character-eight locator 18, locking Nut 19, vertically adjustable bumper 20a, horizontally adjustable bumper 20b, nylon bumper 21, cross recessed countersunk screw 22, copper sleeve 23, key 24, set screw 25, right shaft 26, countersunk head installed Screw 27, locating pin 28, nylon spacer 29, locating plate 30, key 31, taper pin 32, locating cone pin 33, spring top tight nut 34, locating sleeve 35, spring 36, locating taper sleeve 37, short handle 38 and Parts such as cross countersunk head screw 39 are formed.

As shown in Figures 1 to 3, brackets 2 are provided on the left and right sides of the main body bottom plate 16, the left shaft 3 is rotatably mounted on the left bracket 2 through the copper sleeve 12, and the outer end of the left shaft 3 passes through the locking cover 1 is locked and fixed, the right shaft 26 is rotatably mounted on the right side bracket 2 through the copper sleeve 12, and the handle assembly is installed on the outer end of the right shaft 26 and locked and fixed by the locking cover 1.

The upper board 5 is arranged between the brackets 2 on the left and right sides, the left side of the upper board 5 is fixedly connected to the inner end of the left shaft 3, and the right side of the upper board 5 is fixedly connected to the inner end of the right shaft 26. The specific connection method is shown in Figure 1. The left side of the upper board 5 is fixed on the left shaft 3 by the upper board bracket 4, the key 24, the set screw 25 and the countersunk screw 27, and the upper board 5 and the upper board bracket 4 Clamp the inner end of the left shaft 3 and fix it with countersunk screws 27 and set screws 25, and connect the upper board 5 and the left shaft 3 with keys 24; the right side of the upper board 5 and the right shaft 26 are connected in the same way , so it will not be repeated here.

The center of the upper board 5 is provided with a mounting hole, and the center of the bottom of the turntable 6 is provided with a rotating shaft 6a. The rotating shaft 6a is rotatably installed in the mounting hole through a copper sleeve 23 and locked and fixed by a locking cover 1. The top of the turntable 6 The center of the surface is equipped with a nylon washer 29 by a cross recessed countersunk head screw 22 to prevent abrasion of the servo valve body workpiece. The four-pin positioning vertical plate 7 is fixed on the rotating disk 6 by the screw 17 and the conical pin 32, the vertical positioning plate 11 is fixed on the rotating disk 6 by the screw 17, the positioning side of the four-pin positioning vertical plate 7 and the positioning side of the vertical positioning plate 11 are mutually Vertical, the positioning pin 28 is installed on the positioning side of the four-pin positioning vertical plate 7; the vertical stud 10 is installed on the top of the vertical positioning plate 11, and the pressure plate 8 is mounted on the stud 10 and locked by knurling Nut 9 is locked and fixed.

Figure-of-eight locator 18 is arranged on the lower side of upper board 5, and figure-of-eight locator 18 is fixed on the main body base plate 16 by screw 17, and vertically adjustable bumper 20a and horizontal adjustable bumper 20b are installed on the character-of-eight locator 18, vertically Lock nuts 19 are fitted on the threaded rod bodies of the adjustable bumper 20a and the horizontally adjustable bumper 20b. The bumpers of the vertically adjustable bumper 20a and the horizontally adjustable bumper 20b are respectively equipped with nylon bumpers 21 through cross recessed countersunk screws 22 to prevent the workpiece from being worn.

The upper side of the upper board 5 is provided with a positioning plate 30, the positioning plate 30 is provided with a positioning mounting hole, the positioning cone pin 33 is installed in the positioning mounting hole by a spring assembly, and a short handle 38 is installed at the rear end of the positioning cone pin 33; The spring assembly is mainly composed of a spring clamping nut 34, a positioning sleeve 35 and a spring 36. The positioning sleeve 35 is screwed in the positioning installation hole, and the positioning taper pin 33 is installed in the positioning sleeve 35 and is mounted on both sides of the inner hole of the positioning sleeve 35 by screws. The spring at the end tightens the nut 34 to limit the position, and the positioning cone pin 33 can move axially. The spring 36 is set on the positioning cone pin 33. Nut 34; the periphery of the turntable 6 is provided with four holes uniformly distributed in the circumferential direction, and a positioning taper sleeve 37 matched with the front end of the positioning taper pin 33 is installed in each hole.

As shown in Figures 1 to 3, in the embodiment of the present invention, the handle assembly is mainly composed of a handle cover 13, a handle shaft 14, a long handle 15 and a key 31, and the handle cover 13 is fixedly mounted on the right shaft 26 through the key 31, One end of the handle shaft 14 is connected to the handle sleeve 13, and the other end of the handle shaft 14 is equipped with a long handle 15.

As shown in FIGS. 1-3 , the locking cover 1 on the left shaft 3 , the right shaft 26 and the rotating shaft 6 a of the turntable 6 is all fixed by cross countersunk screws 39 .

The working principle of the present invention is as follows:

In specific application, the servo valve body is placed on the plane of the turntable 6, and the positioning is realized by the four-pin positioning vertical plate 7 and the vertical positioning plate 3011. The vertical reference and the pressing device are naturally formed without operation; Tighten the plug M8 [the torque is 14±1.4NM], then turn the turntable 6 180°, install the valve core, valve sleeve, spring 36 pad, spring 36, nut M20*1.5 [the air torque is 66± 6NM], spring 36 seats, tighten nut M5 [air torque force is 6.1±0.9NM], install adjustable gasket, limit block, opening retaining ring, install horizontal valve core, feedback rod, adjust [left and right displacement screws] , calibrate the symmetry of the middle position of the zero point, and complete the assembly.

Claims (8)

1. Servo valve body assembly tooling, including locking cover (1), bracket (2), left shaft (3), upper plate (5), turntable (6), four-pin positioning vertical plate (7), pressure plate ( 8), knurled lock nut (9), double-ended stud (10), vertical positioning plate (11), main body bottom plate (16), figure-of-eight positioner (18), vertically adjustable bumper bar (20a), Horizontal adjustable bumper (20b), right shaft (26), positioning pin (28), positioning taper pin (33), positioning taper sleeve (37) and short handle (38); the left and right sides of the main body bottom plate (16) Each is equipped with a bracket (2), the left shaft (3) is rotatably installed on the left bracket (2) through a copper sleeve (12), and the outer end of the left shaft (3) is locked and fixed by a locking cover (1) , the right shaft (26) is rotatably mounted on the right side bracket (2) through the copper sleeve (12), and the outer end of the right shaft (26) is installed with a handle assembly and locked and fixed by the locking cover (1); The upper board (5) is arranged between the brackets (2) on the left and right sides, the left side of the upper board (5) is fixedly connected to the inner end of the left shaft (3), and the right side of the upper board (5) is fixedly connected to the right shaft ( 26) Inner end; the center of the upper board (5) is provided with a mounting hole, the center of the bottom of the turntable (6) is provided with a rotating shaft (6a), and the rotating shaft (6a) is rotatably installed in the mounting hole through a copper sleeve (23) And locked and fixed by the locking cover (1); the four-pin positioning vertical plate (7) and the vertical positioning plate (11) are fixed on the turntable (6), and the positioning side of the four-pin positioning vertical plate (7) and the vertical positioning plate The positioning sides of (11) are perpendicular to each other, and positioning pins (28) are installed on the positioning sides of the four-pin positioning vertical plate (7); vertical studs (10) are installed on the top of the vertical positioning plate (11), and the pressing plate (8) Installed on the stud (10) and locked and fixed by the knurled lock nut (9); the figure-of-eight locator (18) is set under the upper plate (5), and the figure-of-eight locator (18) is fixed On the main body base plate (16), a vertically adjustable bumper (20a) and a horizontally adjustable bumper (20b) are installed on the eight-character positioner (18), and the vertically adjustable bumper (20a) and the horizontally adjustable bumper A lock nut (19) is equipped on the threaded rod body of the bar (20b); a positioning plate (30) is provided on the rear side of the upper plate (5), and a positioning mounting hole is provided on the positioning plate (30), and a positioning taper pin (33) is installed in the positioning installation hole through the spring assembly, and the short handle (38) is installed at the rear end of the positioning taper pin (33); there are four holes evenly distributed along the circumference of the turntable (6), and each hole is installed There is a positioning taper sleeve (37) that cooperates with the front end head of the positioning taper pin (33). 2. The servo valve body assembly tool according to claim 1, characterized in that: the left side of the upper board (5) passes through the upper board bracket (4), the key (24), the set screw (25) and the sinker The head screw (27) is fixed on the left shaft (3), the upper board (5) and the upper board bracket (4) clamp the inner end of the left shaft (3) and pass the countersunk screw (27) and set screw ( 25) Fixed, the upper board (5) and the left shaft (3) are connected by a key (24); the right side of the upper board (5) is connected with the right shaft (26) in the same way. 3. The servo valve body assembly tool according to claim 1, characterized in that: the four-pin positioning vertical plate (7) is fixed on the turntable (6) by screws (17) and conical pins (32), and the vertical positioning The plate (11) is fixed on the turntable (6) by screws (17). 4. The servo valve body assembly tool according to claim 1, characterized in that: the handle assembly includes a handle cover (13), a handle shaft (14), a long handle (15) and a key (31), and the handle cover ( 13) Fixedly installed on the right shaft (26) through the key (31), one end of the handle shaft (14) is connected to the handle sleeve (13), and the other end of the handle shaft (14) is equipped with a long handle (15). 5. The servo valve body assembly tool according to claim 1, characterized in that: the center of the top surface of the turntable (6) is installed with a nylon gasket (29) through a cross-recessed countersunk screw (22). 6. The servo valve body assembly tool according to claim 1, characterized in that: the bumpers of the vertically adjustable bumper (20a) and the horizontally adjustable bumper (20b) are respectively passed through cross-recessed countersunk screws (22) Nylon bumper (21) is installed. 7. The servo valve body assembly tool according to claim 1, characterized in that: the spring assembly includes a spring clamp nut (34), a positioning sleeve (35) and a spring (36), and the positioning sleeve (35) is screwed In the positioning installation hole, the positioning cone pin (33) is installed in the positioning sleeve (35) and is limited by the spring tightening nuts (34) screwed on both ends of the inner hole of the positioning sleeve (35), and the positioning cone pin (33) It can move axially. The spring (36) is set on the positioning cone pin (33). ). 8. The servo valve body assembly tool according to claim 1, characterized in that: the locking caps (1) on the left shaft (3), right shaft (26) and rotating shaft (6a) are all made by cross sinking head screws (39).