CN216483940U

CN216483940U - Vertical running-in machine of ball screw pair

Info

Publication number: CN216483940U
Application number: CN202123112067.9U
Authority: CN
Inventors: 杨福民
Original assignee: Tianjin Detai Intelligent Equipment Co ltd
Current assignee: Tianjin Di Tie Precision Machinery Co.,Ltd.
Priority date: 2021-12-10
Filing date: 2021-12-10
Publication date: 2022-05-10
Anticipated expiration: 2031-12-10

Abstract

The utility model provides a vice vertical running-in machine of ball screw, including the fuselage support and the transmission that sets up on the fuselage support, be equipped with the controlling means who is used for controlling transmission work on the fuselage support, transmission includes that the chuck that rotates the setting on the fuselage support and be used for driving the actuating mechanism that the chuck just reversely moved, and the position that corresponds the chuck top on the fuselage support is equipped with the live center that is used for the lead screw of location, and the vertical slidable mounting of live center is equipped with the spring balance mechanism who is used for balanced live center weight on the fuselage support. The utility model discloses the suitability is high, and is easy and simple to handle, and reliable and stable, can realize carrying out the running-in to the vice high-efficient running-in operation of ball screw through adopting vertical structure to the lead screw of vertical setting, has overcome the phenomenon that original lead screw downwarped at the level running-in-process, even the lead screw can not take place to warp under fatigue test's the condition yet, is favorable to improving the running-in effect.

Description

Vertical running-in machine of ball screw pair

Technical Field

The utility model belongs to ball screw processing field especially relates to an vice vertical running-in machine of ball screw.

Background

The ball screw pair consists of a ball screw, a ball nut and a steel ball. The function of the transmission mechanism is to convert rotary motion into linear motion, namely, to expand the trapezoidal screw rod, convert sliding friction of the trapezoidal screw rod into rolling friction, reduce friction force between the screw rod and the nut, and improve efficiency of the transmission part. The ball screw has a small friction force, so that the ball screw is widely applied to various industries, particularly mechanical precision industries.

Because the steel balls and the screw rod have processing errors to a certain extent in the processing and manufacturing process, the screw rod can abrade the steel balls when running at a high speed under the condition of long-term use, so that a larger gap is generated between the screw rod and the steel balls, and the positioning precision of the ball screw rod can be influenced finally. Generally, many manufacturers purchase screw rods to directly use the screw rods, and cannot try to operate the ball screw rods, steel balls are often damaged under the condition, the service life of equipment is influenced, and economic loss is caused.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at providing a vice vertical running-in machine of ball screw to solve the current not good problem of running-in operation effect of running-in machine.

In order to achieve the above purpose, the technical scheme of the utility model is realized like this:

a vertical running-in machine of a ball screw pair comprises a machine body support and a transmission device arranged on the machine body support, wherein a control device used for controlling the transmission device to work is arranged on the machine body support; the nut clamping mechanism and the lubrication oil injection mechanism are arranged on the machine body support corresponding to the position between the movable center and the chuck, and the nut clamping mechanism comprises a positioning frame vertically arranged on the machine body support in a sliding mode and a clamping jaw assembly arranged on the positioning frame.

Furthermore, a dust cover is arranged on the position, corresponding to the transmission device, of the machine body support, a running-in cavity for containing the ball screw pair is formed in the dust cover, and a door body capable of being opened and closed is arranged on one side of the dust cover.

Further, be equipped with the support frame that is used for installing live center on the fuselage support, live center includes with support frame sliding fit's mount pad and the top body that sets up on the mount pad, top body vertical slidable mounting is on the mount pad, and the position that corresponds the support frame on the mount pad is equipped with the fixed subassembly that is used for fixing a position the mount pad, the position that corresponds top body is equipped with the locating component who is used for fixing a position the top body.

Furthermore, an assembly groove in sliding fit with the center body is formed in the mounting seat, a pin shaft is arranged at one end, extending into the assembly groove, of the center body, the other end of the center body is arranged towards the chuck, a long hole matched with the pin shaft is formed in the mounting seat and communicated with the assembly groove, the length direction of the long hole is the same as the moving direction of the center body, one end of the pin shaft is arranged on the center body, and the other end of the pin shaft penetrates through the long hole; the mounting base is provided with a movable handle used for driving the center body to move, one end of the movable handle is rotatably installed on the mounting base, the other end of the movable handle is arranged towards the center body, and a strip-shaped hole matched with the pin shaft is formed in the position, corresponding to the pin shaft, of the movable handle.

Furthermore, the spring balance mechanism comprises a spring balancer arranged on the machine body bracket, one end of the spring balancer is connected with the machine body bracket, and the other end of the spring balancer is connected with the movable center.

Furthermore, a sliding groove in sliding fit with the positioning frame is arranged on the machine body support, a limiting device used for limiting the moving stroke of the positioning frame is arranged at two ends of the machine body support corresponding to the sliding groove, and the limiting device is connected with the control device.

Further, lubricated oiling mechanism includes the oil pipe that sets up on the fuselage support and for the fuel feeding unit of oil pipe fuel feeding, and the oil pipe sets up two along the interval at least of locating rack moving direction, and each oil pipe all is equipped with the oil-out towards one side of locating rack.

Furthermore, the clamping jaw assembly comprises at least two clamping hands which are correspondingly arranged at the left side and the right side of the positioning frame, one end of each clamping hand is rotatably arranged on the positioning frame, and the other end of each clamping hand is provided with a locking screw for connecting a ball nut; the clamping hand is provided with mounting holes matched with the locking screws, and at least two mounting holes are arranged on the clamping hand at intervals.

Furthermore, the tong corresponds and sets up four, including two last clampers and two lower clampers, be equipped with between adjacent last clampers and the lower clampers can with ball nut complex tight clearance.

Furthermore, the positioning frame is provided with a mounting groove for mounting the clamping hand, a rotating shaft is arranged on the positioning frame at a position corresponding to the mounting groove, one end of the clamping hand extending into the mounting groove is rotatably mounted on the positioning frame through the rotating shaft, and the other end of the clamping hand is provided with a concave part matched with the ball nut; the clamping hand is provided with a rotating hole matched with the rotating shaft, a jacking screw used for positioning the clamping hand is arranged at the position, corresponding to the rotating hole, on the clamping hand, and one end, extending into the rotating hole, of the jacking screw props against the rotating shaft.

Compared with the prior art, the vice vertical running-in machine of ball screw have following advantage:

the utility model discloses the suitability is high, and is easy and simple to handle, and reliable and stable, can realize the vice high-efficient running-in operation of ball screw, run-in to the lead screw of vertical setting through adopting vertical structure, the phenomenon of having overcome original lead screw and having appeared downwarping at the level running-in-process, even the lead screw can not take place to warp under fatigue test's the condition, be favorable to improving the experimental precision of running-in, this kind of vertical running-in machine simple structure, installation lead screw convenient and fast is rapid, area is little, the space is compared unrestricted, lead screw to the long and thin type of running-in has splendid result of use.

Drawings

The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:

fig. 1 is a schematic structural view of a vertical running-in machine of a ball screw pair according to an embodiment of the present invention;

fig. 2 is a schematic structural view of a machine body bracket in a vertical running-in machine of a ball screw pair according to an embodiment of the present invention;

FIG. 3 is a left side view of FIG. 2;

fig. 4 is a schematic structural view of a nut clamping mechanism in a vertical running-in machine of a ball screw pair according to an embodiment of the present invention;

fig. 5 is a schematic structural view of a clamping jaw assembly in the vertical running-in machine of the ball screw pair according to the embodiment of the present invention;

FIG. 6 is a top view of FIG. 5;

fig. 7 is a schematic structural view of a live center in the vertical running-in machine of the ball screw pair according to the embodiment of the present invention;

fig. 8 is a left side view of fig. 7.

Description of reference numerals:

1. a dust cover; 2. a fuselage cradle; 3. an oil storage tank; 4. a control device; 5. a drive mechanism; 6. a spring balancing mechanism; 7. a door body; 8. an oil outlet pipe; 9. a limiting device; 10. a live center; 11. a nut clamping mechanism; 12. a ball nut; 13. a screw rod; 14. a chuck; 15. a proximity switch; 16. a positioning frame; 17. an upper clamping hand; 18. a lower clamping hand; 19. a sensor connecting plate; 20. a receiving gap; 21. jacking the screw tightly; 22. mounting grooves; 23. mounting holes; 24. a rotating shaft; 25. a recessed portion; 26. a support frame; 27. a mounting seat; 28. a tip body; 29. a movable handle; 30. fixing a rotary locking handle; 31. positioning and rotating the locking handle; 32. a strip-shaped hole; 33. a strip hole; 34. a pin shaft; 35. a rolling bearing.

Detailed Description

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

A vertical running-in machine of a ball screw pair is shown in figures 1 to 8 and comprises a machine body bracket 2 and a transmission device arranged on the machine body bracket 2, wherein a control device 4 for controlling the transmission device to work is arranged on the machine body bracket 2, the transmission device comprises a chuck 14 which is rotatably arranged on the machine body bracket 2 and a driving mechanism 5 which is used for driving the chuck 14 to rotate forwards and backwards, the driving mechanism 5 can adopt a servo driving motor, the chuck 14 can adopt an existing rotating chuck, power transmission can be realized between the servo driving motor and the chuck 14 through a synchronous belt transmission mechanism, and the driving mechanism 5 drives the chuck 14 to rotate forwards and backwards, and the forward and backward rotation of the chuck 14 can drive the screw rod 13 on the chuck 14 to rotate forwards and backwards, so that the ball nut 12 on the screw rod 13 can perform linear reciprocating motion, and the running-in between the ball nut 12 and the screw rod 13 is realized.

Wherein, controlling means 4 can adopt the numerical control system of current control running-in machine operation, for example servo motor controller, through a series of numerical control programming, has set for the operation mode of lead screw 13 and the distance of effective stroke, control transmission (being servo drive motor), drives ball nut 12 and makes straight reciprocating motion, utilizes controlling means 4 to control transmission and drive lead screw 13 and just reverse rotation for prior art, and it is no longer repeated here.

A dust cover 1 is arranged on the machine body bracket 2 corresponding to the transmission device, a running-in cavity for accommodating the ball screw pair exists in the dust cover 1, and a door body 7 which can be opened and closed is arranged on one side of the dust cover 1; dust cover 1 can adopt the drum type structure, fuselage support 2 is used for fixed transmission, controlling means 4 and the necessary component of other devices, the outward appearance of drum type is more exquisite, small and exquisite, the structure is more simple and convenient, it is easier to operate, dust cover 1 can play good guard action to each device, 13 pairs of ball screw play protection and the effect of sheltering from to running in simultaneously, avoid 13 pairs of ball screw to get into the foreign matter at the running in-process, also prevent that 13 pairs of foreign matters of running in-process of ball screw from outwards splashing, harm operating personnel, the security of this kind of running in the use has been improved.

Optionally, the door body 7 can adopt an arc-shaped plate-shaped structural member, the door body 7 can be slidably mounted on the dust cover 1 through a slide way, a mounting opening for mounting the door body 7 is formed in the dust cover 1, a handle member which is convenient for an operator to open and close the door body 7 can be arranged on the door body 7, the handle member can be fixedly mounted on the door body 7 through a screw, and the openable and closable door body 7 is arranged, so that the operator can assemble a ball screw pair on a transmission device conveniently, the mounting difficulty of the ball screw pair is reduced, and after the ball screw pair is assembled, the door body 7 can be closed in a sliding manner, and the running-in processing efficiency of the ball screw pair is improved; meanwhile, in order to facilitate the operator to better observe the ball screw pair in the running-in process, the door body 7 can also be made of transparent materials, such as transparent plastics or explosion-proof glass.

A movable center 10 for positioning a screw rod 13 is arranged on the machine body support 2 corresponding to the position above the chuck 14, the movable center 10 is vertically and slidably mounted on the machine body support 2, and a spring balance mechanism 6 for balancing the weight of the movable center 10 is arranged on the machine body support 2; the spring balance mechanism 6 comprises a spring balancer arranged on the machine body support 2, one end of the spring balancer is connected with the machine body support 2, and the other end of the spring balancer is connected with the movable center 10. One end of the spring balancer connecting wire can be connected with the machine body bracket through a connecting ring, the other end of the spring balancer connecting wire can be connected with the live center through a mounting ring, the connecting ring is fixed on the machine body bracket, and the mounting ring is fixed on a mounting seat of the sliding center, so that the spring balancer can play a role in balancing the weight of the live center, and further description is omitted; a guide wheel for guiding the spring balancer connecting line can also be arranged on the body frame 2 to realize the stable connection between the spring balancer and the live center 10.

It is optional, top body 28 can adopt morse top, because live center 10 is steel structure for the material of ensureing that structural strength uses, therefore weight is heavier, it is more difficult during artifical manual rebound, this kind of running-in machine is through installation spring balance mechanism 6, the degree of difficulty of manual operation has been reduced, the top device of convenient rebound, can be more laborsaving during artifical removal, spring in the spring balancer is in the state that draws and rises always, the spring just contracts when live center 10 rebound, the spring can balance live center 10's weight, the convenience that live center 10 removed has been improved, and then the operation degree of difficulty of this kind of running-in machine has been reduced, be favorable to improving the running-in efficiency of this kind of running-in machine.

Fuselage support 2 can set up the support frame 26 that is used for installing live center 10, support frame 26 can with fuselage support 2 integrated into one piece, live center 10 include with support frame 26 sliding fit's mount pad 27, and the top body 28 that sets up on the mount pad 27, the vertical slidable mounting of top body 28 is on mount pad 27, the position that corresponds support frame 26 on the mount pad 27 is equipped with the fixed subassembly that is used for fixing a position mount pad 27, the position that corresponds top body 28 is equipped with the locating component that is used for fixing a position top body 28.

Optionally, the fixing assembly includes a fixed rotary locking handle 30 arranged on the mounting seat 27, the positioning assembly includes a positioning rotary locking handle 31 arranged on the mounting seat 27, a threaded hole for installing the fixed rotary locking handle 30 and the positioning rotary locking handle 31 is arranged on the mounting seat 27, and one end of the fixed rotary locking handle 30 penetrating through the threaded hole is abutted against the support frame 26 to realize the limiting and fixing of the mounting seat 27 on the support frame 26; the one end that rotatory locking handle 31 of location passed the screw hole withstands top body 28, realizes top body 28 spacing fixed on mount pad 27, through setting up fixed subassembly and locating component, is favorable to improving the stability of live center 10 when pushing up tight lead screw 13, ensures live center 10 and rotates the in-process at lead screw 13, can play good positioning action to lead screw 13 all the time.

When the running-in machine runs in the lead screw 13 with the same length, the tip body 28 can be moved upwards firstly, the lead screw 13 is placed, due to the action of gravity, the tip body 28 can automatically fall down, the lead screw 13 is tightly pushed to prevent the upper end of the lead screw 13 from swinging, the fixed tip body 28 can be locked by the positioning rotary locking handle 31, finally the lower end of the lead screw 13 is clamped and fixed by the chuck 14, the lead screw 13 can be driven to stably rotate positively and reversely by the driving mechanism 5, the two ends of the lead screw 13 are fixed by matching the movable tip 10 and the chuck 14, and the stability of the lead screw 13 in the rotating process of the running-in machine is improved.

When the running-in machine is used for the lead screws 13 with different running-in lengths, the height of the mounting seat 27 on the supporting frame 26 can be adjusted firstly, the fixing rotary locking handle 30 is used for fixing the mounting seat 27, then the tip body 28 is moved upwards and the lead screw 13 is placed, the fixing tip body 28 is locked by the positioning rotary locking handle 31, finally the lower end of the lead screw 13 is clamped and fixed through the chuck 14, the driving mechanism 5 can drive the lead screw 13 to stably rotate forwards and backwards, the adjustable movable tip 10 is arranged on the machine body support 2, the running-in machine can realize running-in operation on the lead screws 13 with different lengths, and the universality and the applicability of the running-in machine are improved.

The mounting seat 27 can be provided with an assembly groove in sliding fit with the tip body 28, one end of the tip body 28 extending into the assembly groove is provided with a pin shaft 34, the other end of the tip body is arranged towards the chuck 14, the mounting seat 27 is provided with a long hole 33 matched with the pin shaft 34, the long hole 33 is communicated with the assembly groove, the length direction of the long hole 33 is the same as the moving direction of the tip body 28, one end of the pin shaft 34 is arranged on the tip body 28, the other end of the pin shaft passes through the long hole 33, and the pin shaft 34 can be welded and fixed on the tip body 28 so as to realize stable connection between the pin shaft 34 and the tip body 28; the mounting seat 27 is provided with a movable handle 29 for driving the tip body 28 to move, one end of the movable handle 29 is rotatably mounted on the mounting seat 27, the other end of the movable handle is arranged towards the tip body 28, and a strip-shaped hole 32 matched with the pin shaft 34 is formed in the position, corresponding to the pin shaft 34, on the movable handle 29.

Optionally, the movable handle 29 can be a U-shaped structural member, two ends of the movable handle 29 can be rotatably mounted on the mounting seat 27 through a rotating shaft, two strip-shaped holes 32 are formed in the left side and the right side of the movable handle 29 correspondingly, two corresponding pin shafts 34 and two strip-shaped holes 33 are correspondingly formed, the strip-shaped holes 32 are matched with the pin shafts 34, when an operator rotates the movable handle 29, the movable handle 29 can drive the pin shafts 34 to move along the strip-shaped holes 32, and further drive the tip body 28 to lift on the mounting seat 27, so that the tip body 28 can be adjusted, the lead screw 13 can be conveniently placed in the movable handle, the operation is simple and convenient, the moving difficulty of the tip body 28 is reduced, the running-in machine can be adjusted by the position of the movable tip, the running-in of the pair of ball screws 13 with different lengths can be adapted, and the use is very convenient.

A nut clamping mechanism 11 and a lubricating oil injection mechanism are arranged on the machine body support 2 corresponding to the position between the live center 10 and the chuck 14, and the nut clamping mechanism 11 comprises a positioning frame 16 vertically arranged on the machine body support 2 in a sliding manner and a clamping jaw assembly arranged on the positioning frame 16; the clamping jaw assembly comprises at least two clamping jaws which are correspondingly arranged on the left side and the right side of the positioning frame 16, one end of each clamping jaw is rotatably arranged on the positioning frame 16, and the other end of each clamping jaw is provided with a locking screw for connecting the ball nut 12; the clamping hand is provided with mounting holes 23 which can be matched with the locking screws, and at least two mounting holes 23 are arranged on the clamping hand at intervals.

When running and holding the ball nut 12, the ball nut 12 can be firstly put into the clamping hand, the mounting hole 23 of the clamping hand is aligned with the through hole on the ball nut 12, and then the ball nut 12 and the clamping hand are connected by the locking screw, so that running and holding can be carried out; in order to improve the applicability of the nut clamping mechanism 11, only the clamping hand needs to be replaced, or various mounting holes 23 are formed in different positions of the clamping hand, so that the operation is simple and convenient, and the applicability of the nut clamping mechanism 11 is improved. The nut clamping mechanism 11 is a mechanism for fixing the ball nut 12, preventing the ball nut 12 from rotating and forcing the ball nut 12 to perform linear motion, the nut clamping mechanism 11 used on the running-in machine can realize positioning of the ball nuts 12 of different models and sizes, the nut clamping mechanism 11 also has a self-adjusting function, the ball nuts 12 of different sizes can be installed at will, and the applicability and the universality of the running-in machine are further improved.

Optionally, four corresponding grippers can be arranged, including two upper grippers 17 and two lower grippers 18, a clamping gap capable of being matched with the ball nut 12 is arranged between the adjacent upper grippers 17 and the adjacent lower grippers 18, an installation groove 22 for installing the grippers is arranged on the positioning frame 16, a rotating shaft 24 is arranged on the positioning frame 16 corresponding to the installation groove 22, one end of each gripper extending into the installation groove 22 is rotatably installed on the positioning frame 16 through the rotating shaft 24, and the other end of each gripper is provided with a recess 25 matched with the ball nut 12; the clamping hand is provided with a rotating hole matched with the rotating shaft 24, a jacking screw 21 for positioning the clamping hand is arranged at the position of the clamping hand corresponding to the rotating hole, and one end of the jacking screw 21 extending into the rotating hole jacks the rotating shaft 24; the ball nut 12 can be better fixed by four clamping hands up and down, wherein the accommodating gap 20 between the upper clamping hand 17 and the lower clamping hand 18 can be matched with the convex ring on the ball nut 12, and the ball nut 12 can be better positioned by the upper clamping hand and the lower clamping hand by clamping and fixing the convex ring.

After the through hole on the ball nut 12 is aligned with the mounting hole 23 on the tong, an operator can firstly align the mounting hole 23 on the upper and lower tongs 18 with the through hole of the ball nut 12, then install a locking screw on the tongs, pass the locking screw through the mounting hole of the upper tong 17, the through hole and the mounting hole of the lower tong 18 in sequence, then utilize the locking nut and the locking screw to cooperate, utilize the locking screw to realize the stable connection between the tongs and the nut, thus realizing the limit of the ball nut 12 and ensuring the ball nut 12 to move up and down in a reciprocating manner; finally, an operator can install a jacking screw 21 on the side face of the clamping hand, the jacking screw 21 is utilized to jack the rotating shaft 24, so that the rotation of the clamping hand is limited, the clamping hand is relatively fixed on the positioning frame 16 at the moment, the clamping hand and the ball nut 12 are relatively fixed, the ball nut 12 is less prone to rotating, and the ball nut 12 can keep stable up-and-down reciprocating motion in the process that the transmission device drives the screw rod 13 to rotate, so that efficient running-in of the ball screw rod 13 pair is realized; by arranging the four clamping hands and arranging the concave part 25 and the jacking screw 21 on the clamping hands, the positioning effect of the nut clamping mechanism 11 on the ball nut 12 is further improved.

Optionally, the rotating shaft 24 may be fixed on the positioning frame 16, two rotating shafts 24 are arranged on the left side and the right side of the positioning frame 16, the length of the rotating shaft 24 may be slightly longer, which may be slightly longer than the sum of the widths of the upper and lower clamping hands, so that the operator can adjust the size of the accommodating gap 20 between the upper and lower clamping hands 18 according to the ball nuts 12 with different sizes or dimensions, which is beneficial to further improving the applicability and the universality of the nut clamping mechanism 11.

A sliding groove in sliding fit with the positioning frame 16 is arranged on the machine body support 2, a limiting device 9 for limiting the moving stroke of the positioning frame 16 is arranged at two ends of the machine body support 2 corresponding to the sliding groove, and the limiting device 9 is connected with the control device 4; stop device 9 can correspond and set up two, distance between two stop device 9 is the formation of ball nut 12 promptly, stop device 9 can adopt mechanical limit switch, usable current proximity switch 15's touching formula principle, can set up on the fuselage support 2 with proximity switch 15 complex sensor connecting plate 19, sensor connecting plate 19 middle part can be installed on fuselage support 2 through the pivot rotation, when adjusting the angle, the locking pivot can, be connected between proximity switch 15 and the controller and control mode are prior art, no longer describe here any more.

Specifically, when the ball nut 12 runs to the limit position, the nut clamping mechanism 11 touches one end of the sensor connecting plate 19, the other end of the sensor connecting plate 19 at the lower limit position touches the proximity switch 15 upwards, the proximity switch 15 feeds back a signal, the control device 4 receives the feedback signal and controls the transmission device to rotate forwards, and the ball nut 12 starts to move upwards; when the nut clamping mechanism 11 runs to the upper limit position of the sensor connecting plate 19, the other end of the sensor connecting plate 19 at the upper limit position touches the proximity switch 15 downwards, the proximity switch 15 feeds back a signal, the control device 4 receives the feedback signal and controls the transmission device to rotate reversely, the ball nut 12 starts to move downwards, and the reciprocating motion of the ball nut 12 on the screw rod 13 is realized by repeating the steps.

Optionally, the locating rack 16 can be slidably mounted on the chute through a rolling bearing 35, an installation shaft for installing the rolling bearing 35 is arranged on the locating rack 16, the rolling bearing 35 is rotatably mounted on the installation shaft, a containing hole for setting the installation shaft can be formed in the locating rack 16, a groove for facilitating rotation of the rolling bearing 35 can be formed in the position of the locating rack 16 corresponding to the installation shaft, and the containing hole is communicated with the groove.

Specifically, the mounting shaft can be fixed on the positioning frame 16 by screws, through holes matched with the screws can be arranged at two ends of the mounting shaft, screw holes for mounting the screws can be arranged at the left end and the right end of the corresponding groove on the positioning frame 16, the screw holes are communicated with the accommodating holes, and one end of each screw extending into the accommodating hole penetrates through the through hole in the mounting shaft and extends into the screw hole to fix the mounting shaft on the positioning frame 16; by providing the rolling bearing 35, friction between the positioning frame 16 and the body frame 2 can be reduced, and the influence of sliding blockage of the positioning frame 16 on the movement of the ball nut 12 can be reduced.

The lubrication and oil injection mechanism comprises an oil outlet pipe 8 arranged on the machine body support 2 and an oil supply assembly for supplying oil to the oil outlet pipe 8, the oil outlet pipe 8 is at least arranged in two at intervals along the moving direction of the positioning frame 16, and an oil outlet is formed in one side, facing the positioning frame 16, of each oil outlet pipe 8. The lubrication and oil injection system is used for reducing friction heat generation of the ball screw 13 in the high-speed running process and avoiding the ball screw 13 from working in a high-heat environment, a plurality of oil outlet pipes 8 are arranged on the machine body support 2 at intervals, so that oil injection cooling and lubrication can be continuously carried out on the ball screw 13 in the moving process of the ball nut 12, and abrasion of the ball screw 13 is avoided.

Optionally, the position that corresponds transmission below on the fuselage support 2 can set up batch oil tank 3, and the running-in cavity intercommunication in batch oil tank 3 and the dust cover 1 can pass through the oil pump connection between batch oil tank 3 and the play oil pipe 8 to realize batch oil tank 3 to the fuel feeding of play oil pipe 8, the installation and the control mode of oil pump are prior art, no longer describe here.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a vice vertical running-in machine of ball screw, includes the fuselage support and the transmission that sets up on the fuselage support, is equipped with the controlling means who is used for controlling transmission work on the fuselage support, its characterized in that: the transmission device comprises a chuck and a driving mechanism, wherein the chuck is rotatably arranged on a machine body support, the driving mechanism is used for driving the chuck to rotate forwards and backwards, a movable center for positioning a screw rod is arranged on the machine body support corresponding to the position above the chuck, the movable center is vertically and slidably arranged on the machine body support, and a spring balancing mechanism for balancing the weight of the movable center is arranged on the machine body support; the nut clamping mechanism and the lubrication oil injection mechanism are arranged on the machine body support corresponding to the position between the movable center and the chuck, and the nut clamping mechanism comprises a positioning frame vertically arranged on the machine body support in a sliding mode and a clamping jaw assembly arranged on the positioning frame.

2. The ball screw pair vertical running-in machine according to claim 1, characterized in that: a dust cover is arranged on the position, corresponding to the transmission device, of the machine body support, a running-in cavity for containing the ball screw pair is formed in the dust cover, and a door body capable of being opened and closed is arranged on one side of the dust cover.

3. The ball screw pair vertical running machine according to claim 1, wherein: the machine body support is provided with a supporting frame for mounting a live center, the live center comprises a mounting seat in sliding fit with the supporting frame and a center body arranged on the mounting seat, the center body is vertically and slidably mounted on the mounting seat, and a fixing assembly used for positioning the mounting seat and a positioning assembly used for positioning the center body are arranged at the position, corresponding to the supporting frame, of the mounting seat.

4. The ball screw pair vertical running-in machine according to claim 3, characterized in that: the center body is provided with a chuck, the center body is provided with a mounting groove, the mounting groove is in sliding fit with the center body, one end of the center body extending into the mounting groove is provided with a pin shaft, the other end of the center body is arranged towards the chuck, the mounting seat is provided with a strip hole matched with the pin shaft, the strip hole is communicated with the mounting groove, the length direction of the strip hole is the same as the moving direction of the center body, one end of the pin shaft is arranged on the center body, and the other end of the pin shaft penetrates through the strip hole; the movable handle is arranged on the mounting seat and used for driving the center body to move, one end of the movable handle is rotatably arranged on the mounting seat, the other end of the movable handle is arranged towards the center body, and a strip-shaped hole matched with the pin shaft is formed in the position, corresponding to the pin shaft, of the movable handle.

5. The ball screw pair vertical running machine according to claim 1, wherein: the spring balancing mechanism comprises a spring balancer arranged on the machine body bracket, one end of the spring balancer is connected with the machine body bracket, and the other end of the spring balancer is connected with the movable center.

6. The ball screw pair vertical running machine according to claim 1, wherein: the positioning frame is characterized in that a sliding groove in sliding fit with the positioning frame is formed in the machine body support, limiting devices used for limiting the moving stroke of the positioning frame are arranged at two ends of the machine body support, corresponding to the sliding groove, and the limiting devices are connected with the control device.

7. The ball screw pair vertical running machine according to claim 1, wherein: lubricated oiling mechanism includes the oil pipe that sets up on the fuselage support and for the fuel feeding unit of oil pipe fuel feeding, and the oil pipe sets up two along the locating rack moving direction at least interval, and each oil pipe all is equipped with the oil-out towards one side of locating rack.

8. The ball screw pair vertical running-in machine according to claim 1, characterized in that: the clamping jaw assembly comprises at least two clamping jaws which are correspondingly arranged at the left side and the right side of the positioning frame, one end of each clamping jaw is rotatably arranged on the positioning frame, and the other end of each clamping jaw is provided with a locking screw for connecting a ball nut; the clamping hand is provided with mounting holes matched with the locking screws, and at least two mounting holes are arranged on the clamping hand at intervals.

9. The ball screw pair vertical running machine according to claim 8, wherein: the tong corresponds and sets up four, including two last tongs and two lower tongs, is equipped with between adjacent last tongs and the lower tong and can presss from both sides tight clearance with ball nut complex.

10. The ball screw pair vertical running machine according to claim 8 or 9, wherein: the positioning frame is provided with a mounting groove for mounting a clamping hand, a rotating shaft is arranged on the positioning frame at a position corresponding to the mounting groove, one end of the clamping hand extending into the mounting groove is rotatably mounted on the positioning frame through the rotating shaft, and the other end of the clamping hand is provided with a concave part matched with the ball nut; the clamping hand is provided with a rotating hole matched with the rotating shaft, a jacking screw used for positioning the clamping hand is arranged at the position, corresponding to the rotating hole, on the clamping hand, and one end, extending into the rotating hole, of the jacking screw props against the rotating shaft.