阅读说明：本技术 一种定量泵 (A kind of constant displacement pump ) 是由 屈钰钦 付长生 于 2019-09-19 设计创作，主要内容包括：一种定量泵,包括伺服驱动器、伺服电机、连轴座、丝杆、保护壳、定量缸筒和设置在保护壳内的丝杆螺母；伺服电机、连轴座、保护壳和定量缸筒依次紧固在一起；保护壳内设有导向轴和与丝杆螺母同轴的丝杆锁紧螺母,导向轴一端固定在保护壳内底部,丝杆锁紧螺母上设有与导向轴相匹配的限位导向孔,丝杆螺母与丝杆锁紧螺母相固接且螺孔对应；连轴座内,丝杆一端与伺服电机活动套接；丝杆锁紧螺母与定量缸筒内的定量轴固接,定量轴与丝杆锁紧螺母固接一端设有横截面直径大于丝杆的横截面直径的容纳槽；定量缸筒内底部还设有输入孔和输出孔；保护壳与连轴座、定量缸筒均密封连接。本发明的有益效果是：可均匀、等量、稳定的输出胶,进给量控制精确。(A kind of constant displacement pump, including servo-driver, servo motor, connecting shaft seat, screw rod, protective shell, quantitative cylinder barrel and the feed screw nut being arranged in protective shell；Servo motor, connecting shaft seat, protective shell and quantitative cylinder barrel successively tighten together；Guiding axis and the screw rod locking nut coaxial with feed screw nut are equipped in protective shell; guiding axis one end is fixed on bottom in protective shell; screw rod locking nut is equipped with the limition orientation hole to match with guiding axis, and feed screw nut is corresponding with screw rod locking nut Joint and screw hole；In connecting shaft seat, screw rod one end and servo motor pivot bush unit；Screw rod locking nut and the quantitative axis in quantitative cylinder barrel are affixed, and quantitative axis and the affixed one end of screw rod locking nut are equipped with the holding tank that cross-sectional diameter is greater than the cross-sectional diameter of screw rod；Bottom is additionally provided with input hole and delivery outlet in quantitative cylinder barrel；Protective shell is tightly connected with connecting shaft seat, quantitative cylinder barrel.The beneficial effects of the present invention are: can uniformly, equivalent, stable output glue, amount of feeding control is accurate.)

1. a kind of constant displacement pump, including it is servo-driver, servo motor (1), connecting shaft seat (2), screw rod (3), protective shell (4), quantitative Cylinder barrel (5) and the feed screw nut (6) being arranged in protective shell (4)；Servo motor (1), connecting shaft seat (2), protective shell (4) and quantitative Cylinder barrel (5) successively tightens together；Guiding axis (7) and the screw rod locking screw coaxial with feed screw nut (6) are equipped in protective shell (4) Female (8), guiding axis (7) one end are fixed on protective shell (4) interior bottom, and screw rod locking nut (8) is equipped with and guiding axis (7) phase The limition orientation hole (9) matched, feed screw nut (6) are corresponding with screw rod locking nut (8) Joint and screw hole；In connecting shaft seat (2), Screw rod (3) one end and servo motor (1) pivot bush unit；Quantitative axis (10) in screw rod locking nut (8) and quantitative cylinder barrel (5) is solid It connects, quantitative axis (10) and screw rod locking nut (8) affixed one end are equipped with the cross-sectional diameter that cross-sectional diameter is greater than screw rod (3) Holding tank (11)；Quantitative cylinder barrel (5) interior bottom is additionally provided with input hole (12) and delivery outlet (13)；Protective shell (4) and connecting shaft seat (2), quantitative cylinder barrel (5) are tightly connected.

2. constant displacement pump according to claim 1, which is characterized in that an also affixed band between connecting shaft seat (2) and protective shell (4) There is the guide holder (19) of pilot hole (18)；In guide holder (19), screw rod 3 is equipped with ring convex and plays (20), and ring convex play the top of (20) Equipped with bearing (21), the upper surface of guide holder (19) is equipped with the bearing to match with pilot hole (18) and compresses end cap (22)；Connecting shaft Seat (2) bottom and guide holder (19) upper surface are affixed, and the tight end cap of compression axis pressure-bearing (22)；Bearing (21) is equipped with up and down and silk The matched sealing element of 3 bars.

3. constant displacement pump according to claim 2, which is characterized in that guide holder (19) is equipped with flange (29), protective shell (4) It is connected with quantitative cylinder barrel (5) by connecting flange (30), flange (29) and connecting flange (30) are fastened by connecting rod (31) Together.

4. constant displacement pump according to claim 3, which is characterized in that connecting flange (30) upper inside wall and lower inner wall are equipped with Annular groove I (32) and annular groove II (33) have oiling spacer (34) and axis uses this from upper in annular groove I (32) Spy's envelope (35), annular groove II (33) is interior to be equipped with throat's spacer (36) and general plug envelope (37) from top to bottom.

5. constant displacement pump according to claim 4, which is characterized in that connecting flange (30) upper surface is equipped with supported flange (38), supported flange (38) lower part is equipped with the annular protrusion (39) to match with annular groove I (32)；Guiding axis (7) passes through pressure Tight flange (38) is fixed on connecting flange.

6. according to claim 1 to constant displacement pump described in any claim in 5, which is characterized in that guide holder (19) and protection The shape of shell (4) junction matches with feed screw nut (6), is equipped in protective shell (4) internal upper part and lower part close to switch Mounting hole (40).

7. according to claim 1 to constant displacement pump described in any claim in 5, which is characterized in that guide holder (19) with connect Oil filler point (41) are equipped on flange (30).

8. the constant displacement pump according to any claim in claim 6, which is characterized in that guide holder (19) and connecting flange (30) oil filler point (41) are equipped on.

9. according to claim 1, constant displacement pump described in 2,3,4,5 or 7, which is characterized in that quantitative cylinder barrel (5) bottom is equipped with and determines Measure the aviation socket hole (44) being connected to inside cylinder barrel (5).

Technical field

The present invention relates to glue stations fields, and in particular to a kind of voltage stabilization and current stabilization coating gun.

Background technique

In the production process of Hyundai Motor, the use of various glue is become increasingly prevalent, such as to connect structure glue, To seal sealant, to the vibration isolation glue of vibration isolation.Gluing can reduce the problems such as noise of automobile, infiltration well, be promoted Complete vehicle quality.During auto production line coating technique, how to guarantee that sizing material uniformly and is reasonably coated in workpiece co-relation The quality of automobile finished product.With the raising of Future Consumption level, consumer is higher to car mass requirement, and body of a motor car applies Adhesive process directly influences complete vehicle quality, thus in the following certain time, the raising of automobile gluing quality and efficiency seems that gesture exists It must go and most important.

Currently, artificial application rate is slow, gel quantity is difficult to realize accurately control, often there is excessive glue, falls glue, disconnected glue and painting The problems such as glue amount is uneven causes the waste of cost of supplementary product and personnel's working hour.When applying folding adhesive, if tree lace occur wave, The defects of thickness is different is caused to do over again and be reprocessed or even the problems such as bound edge is bad；Gluing will appear bonding after unevenly making bonding Insecure, glue stain, the excessive phenomenon of glue；If there is glue excessive when being welded, before adjusting line on car door, rubber is needed；Car body paint It is as excessive in generated glue afterwards, it is necessary to the shovel glue processing of operating difficulties is carried out, it is time-consuming；Sealant gluing problem, which also results in, keeps out the wind The problems such as glass leak.

Summary of the invention

The object of the present invention is to provide a kind of constant displacement pump, can uniformly, equivalent, stable output glue, amount of feeding control Accurately.

It is realized the purpose of the present invention is technical solution in this way, a kind of constant displacement pump, including servo-driver, servo Motor, connecting shaft seat, screw rod, protective shell, quantitative cylinder barrel and the feed screw nut being arranged in protective shell；Servo motor, is protected connecting shaft seat Protective case and quantitative cylinder barrel successively tighten together；Guiding axis and the screw rod locking screw coaxial with feed screw nut are equipped in protective shell Mother, guiding axis one end are fixed on bottom in protective shell, and screw rod locking nut is equipped with the limition orientation hole to match with guiding axis, Feed screw nut is corresponding with screw rod locking nut Joint and screw hole；In connecting shaft seat, screw rod one end and servo motor pivot bush unit； Quantitative axis in screw rod locking nut and quantitative cylinder barrel is affixed, and quantitative axis is straight equipped with cross section with the affixed one end of screw rod locking nut Diameter is greater than the holding tank of the cross-sectional diameter of screw rod；Bottom is additionally provided with input hole and delivery outlet in quantitative cylinder barrel；Protective shell and company Axle bed, quantitative cylinder barrel are tightly connected.

In the present invention, servo-driver is connect by power supply line and code device signal line with servo motor, servo controller Servo motor turnning circle and angle are controlled using motor absolute encoder, to guarantee the accurate of glue amount of feeding control.Screw rod one End and servo motor pivot bush unit guarantee that screw rod can be rotated with servo motor.Feed screw nut, screw rod locking nut are equal Match with screw rod, feed screw nut is corresponding with screw rod locking nut Joint and screw hole, and screw rod locking nut passes through limit Pilot hole, which is set in, to be fixed in protective shell in the guiding axis of bottom, can be moved up and down while ensure that screw rod rotation；Work as silk When bar rotates, screw rod locking nut defines that feed screw nut follows screw rod to rotate, and the active force that feed screw nut rotates is become The power for driving screw rod locking nut to move up and down together.Due to being equipped with quantitative axis in quantitative cylinder barrel, screw rod locking nut and fixed The quantitative axis measured in cylinder barrel is affixed, and such screw rod locking nut will drive quantitative axis to move up and down in quantitative cylinder barrel；It is quantitative Axis and the affixed one end of screw rod locking nut are equipped with the holding tank that cross-sectional diameter is greater than the cross-sectional diameter of screw rod, move down in guarantee Holding tank can accommodate screw rod when dynamic.Bottom is additionally provided with input hole and delivery outlet in quantitative cylinder barrel, for the input of raw material and defeated Out；Protective shell is tightly connected with connecting shaft seat, quantitative cylinder barrel, and guarantee ensure that the steady of internal pressure while will not generating leak adhesive It is fixed.Overall structure ensure that the accurate of uniform, equivalent, stable output glue and amount of feeding control.

By adopting the above-described technical solution, the present invention has the advantage that: can uniformly, equivalent, stable output glue, Amount of feeding control is accurate.

Detailed description of the invention

Fig. 1 is a kind of structural schematic diagram of constant displacement pump in the present invention.

Fig. 2 is the structural schematic diagram in the present invention at another visual angle of constant displacement pump.

Fig. 3 is a kind of the schematic diagram of the section structure in Fig. 2 at A-A.

Fig. 4 is another the schematic diagram of the section structure in Fig. 2 at A-A.

Fig. 5 is the structural schematic diagram in the present invention at the second visual angle of constant displacement pump.

Fig. 6 is the structural schematic diagram in the present invention at the third visual angle of constant displacement pump.

Fig. 7 is the schematic diagram of the section structure in Fig. 6 at B-B.

Fig. 8 is structural schematic diagram in A in Fig. 7.

Fig. 9 is a kind of structural schematic diagram that bearing compresses end cap.

Figure 10 is another visual angle schematic diagram that bearing compresses end cap.

Figure 11 is the schematic diagram of the section structure of C-C at Figure 10.

In figure: 1. servo motors；2. connecting shaft seat；3. screw rod；4. protective shell；5. quantitative cylinder barrel；6. feed screw nut；7. guiding Axis；8. screw rod locking nut；9. limition orientation hole；10. quantitative axis；11. holding tank；12. input hole；13. delivery outlet；14. subtracting Fast machine；15. shaft coupling；16. detent platform；17. card slot；18. pilot hole；19. guide holder；20. ring convex rise；21. bearing；22. axis The tight end cap of pressure-bearing；23. double-row angular contact bal bearing；24. deep groove ball bearing；25. stepped hole；26. boss；27. oil sealing liner； 28. locking nut；29. flange；30. connecting flange；31. connecting rod；32. annular groove I；33. annular groove II；34. oiling Spacer；35. axis is sealed with this spy；36. throat's spacer；37. general plug envelope；38. supported flange；39. annular protrusion；40. mounting hole； 41. oil filler point；42. clamp screw wire hole；43. through hole；44. aviation socket hole；45. prizing hole；46. connecting hole.

Specific embodiment

The present invention is further illustrated with reference to the accompanying drawings and examples.

As shown in Figures 1 to 8, a kind of constant displacement pump, including servo-driver, servo motor 1, connecting shaft seat 2, screw rod 3, protection Shell 4, quantitative cylinder barrel 5 and the feed screw nut 6 being arranged in protective shell 4；Servo motor 1, connecting shaft seat 2, protective shell 4 and quantitative cylinder barrel 5 successively tighten together；Guiding axis 7 and the screw rod locking nut 8 coaxial with feed screw nut 6, guiding axis 7 are equipped in protective shell 4 One end is fixed on bottom in protective shell 4, and screw rod locking nut 8 is equipped with the limition orientation hole 9 to match with guiding axis 7, screw rod Nut 6 is corresponding with 8 Joint of screw rod locking nut and screw hole；In connecting shaft seat 2,3 one end of screw rod and 1 movable sleeve of servo motor It connects；Screw rod locking nut 8 and the quantitative axis 10 in quantitative cylinder barrel 5 are affixed, and quantitative axis 10 is set with the affixed one end of screw rod locking nut 8 There is cross-sectional diameter to be greater than the holding tank 11 of the cross-sectional diameter of screw rod 3；Bottom is additionally provided with input hole 12 and defeated in quantitative cylinder barrel 5 Portal 13；Protective shell 4 is tightly connected with connecting shaft seat 2, quantitative cylinder barrel 5.

In the present invention, servo-driver is connect by power supply line and code device signal line with servo motor 1, servo controller 1 turnning circle of servo motor and angle are controlled using motor absolute encoder, to guarantee the accurate of glue amount of feeding control.Screw rod 3 One end and 1 pivot bush unit of servo motor guarantee that screw rod 3 can be rotated with servo motor 1.Feed screw nut 6, screw rod locking Nut 8 matches with screw rod 3, and feed screw nut 6 is corresponding with 8 Joint of screw rod locking nut and screw hole, and screw rod locking screw Mother 8 is set in the guiding axis 7 for being fixed on bottom in protective shell 4 by limition orientation hole 9, while ensure that screw rod 3 rotates It can move up and down；When screw rod 3 rotates, screw rod locking nut 8 defines that feed screw nut 6 follows screw rod 3 to rotate, by feed screw nut The active force of 6 rotations becomes the power for driving screw rod locking nut 8 to move up and down together.Due to screw rod locking nut 8 and determine Measure cylinder barrel 5 in quantitative axis 10 it is affixed, such screw rod locking nut 8 will drive quantitative axis 10 in quantitative cylinder barrel 5 on move down It is dynamic；Quantitative axis 10 is equipped with the holding tank that cross-sectional diameter is greater than the cross-sectional diameter of screw rod 3 with the affixed one end of screw rod locking nut 8 11, holding tank 11 can accommodate screw rod 3 when guarantee moves up and down.Bottom is additionally provided with input hole 12 and delivery outlet in quantitative cylinder barrel 5 13, the two is identical to communicate and can be interchanged position, for outputting and inputting for raw material, the input of raw material and external glue pump connect into It exercises and uses；Protective shell 4 is tightly connected with connecting shaft seat 2, quantitative cylinder barrel 5, and guarantee ensure that inside while will not generating leak adhesive The stabilization of pressure.Overall structure ensure that the accurate of uniform, equivalent, stable output glue and amount of feeding control.Because this patent is protected The main body of shield is entirely to quantify pump configuration, therefore specific control system is not described in detail herein.

Further, as shown in Figures 1 to 8, speed reducer 14 is further fixed between servo motor 1 and connecting shaft seat 2, specifically Ground is fixed by screw；The gear wheel on output shaft is engaged by the few gear of the number of teeth on the input shaft of speed reducer 14 Achieving the purpose that deceleration, can playing the role of matching revolving speed and transmitting torque.

Further, as shown in Figure 3 and Figure 7, in connecting shaft seat 2,1 output end of servo motor or 14 output end of speed reducer are logical It crosses shaft coupling 15 to connect with 3 one end of screw rod, shaft coupling 15 is limited in connecting shaft seat 2, and 1 output end of servo motor or speed reducer 14 are defeated Outlet drives screw rod 3 to rotate by shaft coupling 15.Specifically, the cross-sectional diameter with connecting shaft seat 2 of 15 upper end of shaft coupling match, Lower end is socketed screw rod 3 and abuts with the detent platform 16 on screw rod 3.

Further, as shown in figure 4, in connecting shaft seat 2, screw rod 3 and 14 output end of 1 output end of servo motor or speed reducer It is recessed card slot 17 with connecting in the middle part of the end face of one end, the depth of card slot 17 is less than defeated 1 output end of servo motor or speed reducer The length of output end, but still can be clamped, the preferably depth of card slot 17 be greater than or equal to defeated 1 output end of servo motor or The length of 14 output end of speed reducer, 1 output end of servo motor or 14 output end of speed reducer can directly drive screw rod 3 to rotate.Card slot 17 cross sections can be triangle, quadrangle, pentagon, hexagon and other polygonals.

Further, as shown in Figures 1 to 8, also affixed one leading with pilot hole 18 between connecting shaft seat 2 and protective shell 4 To seat 19；In guide holder 19, the ring convex that screw rod 3 are equipped with play 20, and the top that ring convex play 20 is equipped with bearing 21, the upper end of guide holder 19 Face is equipped with the bearing to match with pilot hole 18 and compresses end cap 22；2 bottom of connecting shaft seat and 19 upper surface of guide holder are affixed, and compress Bearing compresses end cap 22；About 21 bearing is equipped with and the matched sealing element of 3 bar of silk.

Further, as shown in Fig. 3, Fig. 4, Fig. 7 and Fig. 8, bearing 21 includes double-row angular contact bal bearing 23 and deep-groove ball Bearing 24, and be set on screw rod 3,23 quantity of double-row angular contact bal bearing is 2 or 2 or more, deep groove ball bearing 24 Quantity be 1 or more than one, double-row angular contact bal bearing 23 be arranged in 24 upper and lower ends of deep groove ball bearing.Double row angular contact ball Bearing 23 can bear radial load and act on the axial load of both direction, can provide Bearing configuration with a higher rigidity, And tilting moment can be born；24 frictional resistance of deep groove ball bearing is small, and revolving speed is high, can be used to bear radial load or radial direction and axis To.The two assists the rotation of screw rod 3 more lightweight, precision together.

Further, as shown in Fig. 3, Fig. 4, Fig. 7 and Fig. 8 to Figure 11, bearing compresses 22 external structure of end cap and flange knot Structure is identical, is internally provided with stepped hole 25, and 25 big end internal diameter of stepped hole is greater than 26 outer diameter of boss.It is set on 25 big end inner wall of stepped hole There is sealing structure, it is preferable to use fluorine glue outside framework oil seal；The oil sealing liner for being located at 21 top of bearing is equipped between boss 26 and screw rod 3 27,26 lower end of boss is directly abutted with bearing 21, and outside and guide holder 19 are matched fixation by corresponding step structure.

Further, as shown in Fig. 3, Fig. 4, Fig. 7 and Fig. 8, locking nut 28, locking nut 28 are additionally provided in connecting shaft seat 2 Preferably F type tooth abdomen locking nut, after being socketed on screw rod 3 and compressing oil sealing liner 27, using locking on locking nut 28 Locking nut 28 and screw rod 3 are fixed together by anti-return nut.While rotating, locking nut 28 can be to oil sealing for screw rod 3 Liner 27, bearing 21 play the role of better seal and reinforcing.

Further, as shown in Fig. 3, Fig. 4, Fig. 7 and Fig. 8, ring convex, which rise, also is provided with sealing knot between 20 and 21 lower end of bearing Structure is, it is preferable to use fluorine glue outside framework oil seal；Oil sealing liner is equipped between sealing structure and screw rod 3；Using double-layer seal, ensure that pair The excellent sealing of oil.

Further, as shown in Figures 1 to 8, guide holder 19 is equipped with flange 29, and protective shell 4 and quantitative cylinder barrel 5 pass through company Acting flange 30 is connected, and flange 29 is tightened together with connecting flange 30 by connecting rod 31；It ensure that overall structure connection Compactness.

Further, as shown in Fig. 3, Fig. 4 and Fig. 7,30 upper inside wall of connecting flange and lower inner wall are equipped with annular groove I 32 and annular groove II 33, in annular groove I 32 from it is upper has oiling spacer 34 and axis with this it is special seal 35, annular groove II Throat's spacer 36 and general plug envelope 37 are equipped in 33 from top to bottom.Annular groove II 33 be in step shape, 34 shape of throat's spacer with It matches, and lower step is equipped with general plug envelope 37.Oiling spacer 34 and axis in annular groove I 32 seal 35, larynx with this spy Portion's spacer 36 and general plug envelope 37 ensure that the sealing against each other property of the oil of about 30 two sides of connecting flange, glue.

Further, as shown in Fig. 3, Fig. 4 and Fig. 7,30 upper surface of connecting flange is equipped with supported flange 38, supported flange 38 Lower part is equipped with the annular protrusion 39 to match with annular groove I 32；Guiding axis 7 passes through supported flange 38 and is fixed on connecting flange On.Annular protrusion 39 on supported flange 38 seals 35 with this spy to oiling spacer 34 and axis and plays pressuring action, is further ensured that The leakproofness of structure.

Further, as shown in Fig. 2, Fig. 3, Fig. 4 and Fig. 7, the shape and screw rod spiral shell of guide holder 19 and 4 junction of protective shell Mother 6 matches, and is equipped with the mounting hole 40 close to switch in 4 internal upper part of protective shell and lower part, the setting of mounting hole 40 on top exists The screw rod to tighten together with feed screw nut 6 is arranged in the position being adapted with 6 topmost of feed screw nut, the mounting hole 40 of lower part Lowest positions of the locking nut 8 in protective shell 4.Close to switch feed screw nut 6 or screw rod can be identified with more precise control The position of locking nut 8, to avoid position is reached the limit of in the case where servo motor 1 still rotate and the generation of damaged condition.

Further, it as shown in Fig. 1, Fig. 3, Fig. 4, Fig. 5, Fig. 7 and Fig. 8, is equipped on guide holder 19 and connecting flange 30 Oil filler point 41.The position being adapted with 6 topmost of feed screw nut is arranged in oil filler point 41 on guide holder 19；On connecting flange 30 Oil filler point 41 be arranged on 38 top of supported flange.Oil filler point 41 is for injection lubricating oil and uses, and guarantees screw rod locking screw Mother 8 more smoothly slides up and down on guiding axis 7.

Further, as shown in Fig. 1, Fig. 6 and Fig. 7, the boat that 5 bottom of cylinder barrel is equipped with is connected to inside quantitative cylinder barrel 5 is quantified Dummy receptacle hole 44.For installing aviation socket, aviation socket is fixed for installing heat-generating pipe and heat-sensitive sensor in aviation socket hole 44 The clamp screw wire hole 42 for fixing internal heat-generating pipe and heat-sensitive sensor is additionally provided on amount 5 wall of cylinder barrel.

Further, as shown in Fig. 3, Fig. 4, Fig. 7 and Fig. 8,6 bottom of feed screw nut is equipped with through hole 43, when screw rod is locked Nut 8 reach higher position be lubricated oil filling when, it is ensured that lubricating oil can be entered by through hole 43 naturally Into protective shell 4, furthermore through hole 43 also acts as the effect of loss of weight, alleviates the load of servo motor 1, has saved the energy.

Further, as shown in Fig. 3, Fig. 4, Fig. 7 and Fig. 8, feed screw nut 6 and 8 fixed connection mode of screw rod locking nut are spiral shell Nail or bolt are fixed.Internal screw thread is equipped in connecting hole 46, quantitative 7 end of axis is equipped with the external screw thread to match with internal screw thread, Internal screw thread is connect with external screw thread so that screw rod locking nut 8 and the quantitative axis 10 in quantitative cylinder barrel 5 are affixed.

Further, as shown in fig. 6, on quantitative cylinder barrel 5, sled hole 45 is equipped with 30 junction of connecting flange.Sled hole 45 is The position dismantled and agitated using crowbar, can more easily dismantle quantitative cylinder barrel 5.

Further, input hole 12 and delivery outlet 13 are identical and can mutual reversing of position.Heat-generating pipe is for adding glue Heat, heat-generating pipe effect are that holding device temperature is kept constant, guarantee that gel quantity does not receive influence of expanding with heat and contract with cold, and prevent glue excessively It is sticky and block output and input, and heat-sensitive sensor by temperature transition at the switching device of electric signal, with servo controller Electrical connection.