High-precision four-way valve drilling device

Abstract

The utility model provides a high-precision four-way valve drilling device, which relates to the field of valve body drilling, and comprises a frame, two support plates are symmetrically arranged on two sides of the frame, a clamping screw is rotatably connected to the two support plates, a clamping mechanism is slidably mounted on the clamping screw, and the clamping mechanism is provided with a clamping hole. The clamping mechanism comprises a mounting base, a driving nut, a ball bearing assembly and a clamping plate, the driving nut is welded and fixed to the mounting base, the driving nut is arranged on the clamping screw in a threaded connection and sleeving mode, a guide rod is arranged between the two supporting plates, and the mounting base is slidably mounted on the guide rod; the outer ring of the ball bearing assembly is fixed on the mounting seat, the inner ring of the ball bearing assembly is integrally formed and extends to form a connecting sleeve, and the clamping plate is fixed at the front end of the connecting sleeve. The clamping plate rotates to clamp the two ends of the copper pipe valve body along the end part of the copper pipe valve body, so that the clamping stability of the two ends of the copper pipe valve body is kept, and punching on the same horizontal line is facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to valve body drilling technical field, concretely is a high accuracy four -way valve drilling device. BACKGROUND

[0002] Four -way valve is the control valve with four oil ports, four -way valve is indispensable in refrigeration equipment part, four -way valve body processing process, first want to cut the copper pipe of very long length into the small section copper pipe of corresponding valve body length, again set up three pipe orifices in the lateral wall middle side of small section copper pipe on the same horizontal line, set up a pipe orifice on the other side.

[0003] The utility model discloses a copper pipe equidistance drilling machine including processing table, records "two sliders 4 upper end faces are fixedly installed with support plate 8, two sliders 4 drive two support plates 8 to move mutually, thereby can adjust the interval between two clamping plates 10, thereby realize the clamping and fixing of copper pipe of different lengths".

[0004] But due to the precision of copper pipe cutting or cutting burr etc. problem, the cross section of the copper pipe after cutting appears inclined error, the vertical clamping plate on both sides cannot completely adhere to clamp the both ends of the copper pipe, the stability is poor, after drilling, three pipe orifices cannot be kept on the same horizontal line, causes drilling error. UTILITY MODEL CONTENTS

[0005] (I) the technical problem solved

[0006] In view of the deficiencies of prior art, the utility model provides a high accuracy four -way valve drilling device, solves the problem raised in the above background art.

[0007] (II) technical scheme

[0008] To achieve the above object, the utility model is realized by the following technical scheme:

[0009] A kind of high accuracy four -way valve drilling device, including rack, two support plates are symmetrically arranged on the both sides of the rack, clamping screw is rotatably connected on two support plates, clamping mechanism is slidably installed on the clamping screw, the clamping mechanism includes mounting seat, drive nut, ball bearing assembly and clamping plate, the drive nut is welded and fixed on mounting seat, the drive nut is threadedly connected and is set on clamping screw, guide rod is arranged between two support plates, the mounting seat is slidably installed on guide rod, the outer ring of ball bearing assembly is fixed on mounting seat, the inner ring of ball bearing assembly integrally extends and is provided with connecting sleeve, the clamping plate is fixed at the front end of connecting sleeve.

[0010] Preferably, the outer ring of the ball bearing assembly is circumferentially provided with a plurality of connecting ears, the adjusting gear ring is rotatably connected to the connecting ears, the inner wall of the adjusting gear ring is provided with internal threads, the mounting seat is circumferentially provided with a plurality of adjusting screws, and the adjusting gear ring is threadedly connected to the adjusting screws.

[0011] Preferably, the connecting ears are circumferentially provided with mounting grooves, the adjusting gear ring is rotatably mounted in the mounting grooves, the outer wall of the outer ring of the ball bearing assembly is rotatably connected to the synchronous gear ring, the synchronous gear ring is rotatably mounted in the mounting grooves, and the synchronous gear ring and the adjusting gear ring are in meshing engagement.

[0012] Preferably, the rack is provided with a driving motor, the output end of the driving motor is connected to a synchronous shaft, the synchronous shaft is rotatably arranged on the two support plates, two synchronous gears are mounted on the synchronous shaft, the outer end of the clamping screw is provided with a driven gear, and the synchronous gears and the driven gear are in meshing engagement.

[0013] Preferably, the rack is provided with a lifting cylinder, the cylinder arm of the lifting cylinder is connected to a punching support, the punching support is fixedly provided with a translation motor, the output end of the translation motor is fixedly provided with a bidirectional screw rod, the punching support is provided with a centering seat in the middle, the bidirectional screw rod is rotatably connected to the centering seat and symmetrically extends to both sides, the bidirectional screw rod is threadedly connected to a translation seat which is symmetrically arranged, and the centering seat and the translation seat are both provided with a drilling machine.

[0014] Preferably, the inner diameter of the inner ring of the ball bearing assembly is greater than the outer diameter of the clamping screw.

[0015] (Three) beneficial effects

[0016] The utility model provides a high accuracy four -way valve drilling device. Have the following beneficial effects:

[0017] 1, the utility model discloses a driving motor drives two clamping mechanisms to be in clamping screw and be in translation and clamping the both ends of copper pipe, under the action of pressure, the clamping plate drives the inner ring of ball bearing assembly to rotate on the outer ring of ball bearing assembly, make the clamping plate slightly rotate and fit in the both ends of copper pipe and with the end of copper pipe flush, keep good clamping effect, and the clamping force always keeps horizontal, guarantee copper pipe clamping to keep horizontal, improve the drilling accuracy. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is the structure schematic drawing of the utility model discloses a kind of high accuracy four -way valve drilling device;

[0019] Figure 2 It is the structure schematic drawing of the utility model discloses in clamping mechanism;

[0020] Figure 3 is a sectional view of the clamping mechanism in the utility model;

[0021] Figure 4 is a structural schematic view of the ball bearing assembly in the utility model;

[0022] Figure 5 is a structural schematic view of the mounting seat in the utility model.

[0023] In the figure: 1, rack; 2, lifting cylinder; 3, punching support; 4, translation motor; 5, bidirectional screw; 6, centering seat; 7, translation seat; 8, drilling machine; 9, support plate; 10, clamping screw; 11, drive motor; 12, synchronous shaft; 13, synchronous gear; 14, driven gear; 15, guide rod; 16, mounting seat; 17, drive nut; 18, ball bearing assembly; 19, clamping plate; 20, adjusting screw; 21, connecting lug; 22, adjusting gear ring; 23, synchronous gear ring. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model.

[0025] The utility model embodiment provides a kind of high-precision four-way valve drilling device,

[0026] As Figures 1-5As shown, including rack 1, the top of the rack 1 is provided with lifting cylinder 2, the cylinder arm of the lifting cylinder 2 is connected with punching support 3, the punching support 3 is fixed with translation motor 4, the output end of the translation motor 4 is fixed with bidirectional screw rod 5, the middle of the punching support 3 is provided with centering seat 6, the bidirectional screw rod 5 is rotatably connected on the centering seat 6 and extends symmetrically to both sides, the bidirectional screw rod 5 includes integrally formed left moving part, centering part and right moving part, the centering part is rotatably connected on the centering seat 6, the threads on the left moving part and the right moving part are symmetrically arranged, the end of the left moving part and the right moving part is rotatably connected on the punching support 3, the translation seats 7 are symmetrically arranged on the left moving part and the right moving part by threads, the centering seat 6 and the translation seat 7 are both installed with drilling machine 8, the two translation seats 7 can symmetrically and synchronously slide on the bidirectional screw rod 5 under the action of the translation motor 4, that is, the distance between the two translation seats 7 and the centering seat 6 is always equal, that is, the drilling position of the outer wall of the copper pipe remains symmetrical, and the distance can be adjusted, two support plates 9 are symmetrically arranged on the two sides of the rack 1, clamping screws 10 are rotatably connected on the two support plates 9, clamping mechanisms are slidably installed on the clamping screws 10, a driving motor 11 is installed on the rack 1, a synchronous shaft rod 12 is connected to the output end of the driving motor 11, the synchronous shaft rod 12 is rotatably arranged on the two support plates 9, two synchronous gears 13 are installed on the synchronous shaft rod 12, the two synchronous gears 13 are rotatably connected on the outer side of the two support plates 9, a driven gear 14 is installed on the outer end of the clamping screw 10, the synchronous gears 13 and the driven gear 14 are meshed with each other, the rotation of the driving motor 11 can make the two synchronous gears 13 on the synchronous shaft rod 12 rotate, the threads of the two clamping screws 10 are opposite, and the two clamping screws 10 are driven to rotate synchronously.

[0027] As shown in Figure 2 , Figure 3 The clamping mechanism includes mounting seat 16, driving nut 17, ball bearing assembly 18 and clamping plate 19, the driving nut 17 is welded and fixed on the mounting seat 16, the driving nut 17 is threadedly connected and sleeved on the clamping screw 10, two parallel guide rods 15 are arranged between the two support plates 9, the lower end of the mounting seat 16 is provided with a sliding hole, the mounting seat 16 is slidably installed on the guide rod 15, a mounting hole is formed in the mounting seat 16, the inner diameter of the mounting hole is larger than the outer diameter of the clamping screw 10, the mounting hole is covered on the outer side of the clamping screw 10, and the outer ring of the ball bearing assembly 18 is fixed on the mounting seat 16.

[0028] As shown in Figure 4 , Figure 5As shown, the front side of the mounting base 16 is fixed with several adjusting screws 20, which are circumferentially distributed on the outer periphery of the mounting hole, the ball bearing assembly 18 comprises an inner ring and an outer ring, the inner diameter of the inner ring of the ball bearing assembly 18 is greater than the outer diameter of the clamping screw 10, the inner ring of the ball bearing assembly 18 is slid on the inside of the outer ring of the ball bearing assembly 18, and the outer ring of the ball bearing assembly 18 is circumferentially distributed with several connecting ears 21, several mounting grooves are formed in the circumferential direction of the connecting ears 21, the adjusting tooth ring 22 is rotatably connected on the mounting grooves, the adjusting screw 20 penetrates through the connecting ear 21, the inner wall of the adjusting tooth ring 22 is provided with an internal thread, and the adjusting tooth ring 22 is threadedly connected and sleeved on the adjusting screw 20, the inner ring of the ball bearing assembly 18 is integrally formed with a connecting sleeve, the clamping plate 19 is fixed at the front end of the connecting sleeve, the rear side of the inner ring of the ball bearing assembly 18 abuts against the front side of the mounting base 16, and the front side wall of the mounting base 16 abuts against the rear side of the inner ring of the ball bearing assembly 18, thereby limiting the position, that is, when the clamping plate 19 abuts against the end of the copper pipe, the inner ring of the ball bearing assembly 18 is driven to rotate in the outer ring of the ball bearing assembly 18 along with the inclined rotation of the end of the copper pipe, and the inner ring of the ball bearing assembly 18 is partially protruded out of the outer ring of the ball bearing assembly 18 while rotating, so that the distance between the ball bearing assembly 18 and the mounting base 16 is adjusted, that is, the rotatable angle of the inner ring of the ball bearing assembly 18 can be limited, so that the clamping plate 19 is prevented from sliding on the end of the copper pipe to cause the copper pipe to be inclined.

[0029] Further, the outer wall of the outer ring of the ball bearing assembly 18 is rotatably connected with a synchronous tooth ring 23, the synchronous tooth ring 23 is rotatably sleeved in the mounting groove, and the synchronous tooth ring 23 is in meshing connection with the adjusting tooth ring 22.

[0030] Workflow:

[0031] In the utility model, the cut copper pipe is horizontally placed between the two clamping mechanisms and placed between the two guide rods 15, the two guide rods 15 are supported on the lower side of the copper pipe, at this time, the copper pipe faces the clamping plate 19, the driving motor 11 is rotated, the clamping screw 10 is rotated through the synchronous gear 13, the mounting base 16 is synchronously and oppositely translated on the clamping screw 10 under the pushing of the driving nut 17, so as to be clamped on the two ends of the copper pipe and continuously pressurized, the clamping plate 19 is gradually threadedly rotated and combined on the two ends of the copper pipe under the action of pressure, and good clamping effect is maintained, in the rotating process of the clamping plate 19, the inner ring of the ball bearing assembly 18 is rotated on the outer ring of the ball bearing assembly 18, and the stress direction of the two clamping plates 19 is always on the same horizontal line in the clamping process, that is, the copper pipe can be guaranteed to be kept in a horizontal state and centrally arranged directly below the drilling machine 8.

[0032] After clamping and fixing, according to the preset drilling interval, the translation motor 4 is rotated to make the translation seat 7 slide on the bidirectional screw rod 5 to adapt to the required drilling machine 8 interval, and in the adjusting process, the clamping mechanism can keep the clamping plates 19 on both sides of the copper pipe synchronously and oppositely translated to the inner side, and the middle position of the copper pipe on the centering seat 6 is always opposite to the middle position of the copper pipe, so as to punch holes as the center, and the three holes are accurately and equidistantly arranged on the translation horizontal line, so that the position of the punching hole is accurate.

[0033] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A high-precision four-way valve drilling device, comprising a frame, characterized in that: Two support plates are symmetrically arranged on both sides of the frame. Clamping screws are rotatably connected to the two support plates. A clamping mechanism is slidably installed on the clamping screws. The clamping mechanism includes a mounting base, a drive nut, a ball bearing assembly, and a clamping plate. The drive nut is welded and fixed to the mounting base and threadedly sleeved on the clamping screw. A guide rod is provided between the two support plates. The mounting base is slidably installed on the guide rod. The outer ring of the ball bearing assembly is fixed to the mounting base. The inner ring of the ball bearing assembly is integrally formed and extends with a connecting sleeve. The clamping plate is fixed to the front end of the connecting sleeve.

2. The high-precision four-way valve drilling device according to claim 1, characterized in that: The outer ring of the ball bearing assembly has several connecting lugs distributed around its circumference. An adjusting gear ring is rotatably connected to each connecting lug. The inner wall of the adjusting gear ring is provided with an internal thread. The mounting base has several adjusting screws distributed around its circumference. The adjusting gear ring is threadedly sleeved on the adjusting screws. The rear side of the inner ring of the ball bearing assembly abuts against the front side of the mounting base.

3. The high-precision four-way valve drilling device according to claim 2, characterized in that: Several of the connecting ears are provided with mounting grooves in the circumferential direction. The adjusting gear ring is rotatably installed in the mounting groove. The outer ring of the ball bearing assembly is rotatably connected to a synchronous gear ring. The synchronous gear ring is rotatably sleeved in the mounting groove. The synchronous gear ring and the adjusting gear ring mesh with each other.

4. The high-precision four-way valve drilling device according to claim 3, characterized in that: A drive motor is mounted on the frame, and a synchronous shaft is connected to the output end of the drive motor. The synchronous shaft rotates through the two support plates, and two synchronous gears are mounted on the synchronous shaft. A driven gear is mounted on the outer end of the clamping screw, and the synchronous gear and the driven gear mesh with each other.

5. The high-precision four-way valve drilling device according to claim 4, characterized in that: A lifting cylinder is installed on the frame. The cylinder arm of the lifting cylinder is connected to a drilling bracket. A translation motor is fixed on the drilling bracket. A bidirectional screw is fixed to the output end of the translation motor. A centering seat is provided in the middle of the drilling bracket. The bidirectional screw is rotatably connected to the centering seat and extends symmetrically to both sides. Translation seats are symmetrically arranged with threads on the bidirectional screw. A drilling machine is installed on both the centering seat and the translation seats.

6. The high-precision four-way valve drilling device according to claim 5, characterized in that: The inner diameter of the inner ring of the ball bearing assembly is larger than the outer diameter of the clamping screw.

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