CN111173846A - Automatic assembling machine for precision slide block and ball and assembling method thereof - Google Patents

Abstract

The invention discloses an automatic assembling machine for precision slide block balls and an assembling method thereof, wherein the automatic assembling machine comprises a rack and a large bottom plate, wherein a ball supply part, a numerical control double-shaft automatic ball conveying part, a numerical control single-shaft displacement part and an automatic slide block end cover locking part are sequentially arranged on the large bottom plate; the numerical control single-shaft shifting part is provided with an assembling and positioning clamp, a slider body to be assembled and an assembling and transition clamp capable of being movably taken and placed are fixed on the assembling and positioning clamp, the numerical control double-shaft automatic ball conveying part is used for driving the automatic ball taking part to take a corresponding number of balls from the ball supply and conveying assembly and move the balls to a ball assembling area, and the balls conveyed by the automatic ball conveying part are released into the assembling and transition clamp and then assembled into a roller path of the slider body; the numerical control single-shaft displacement component is used for conveying the slide block body after the ball assembly and the slide block end cover placed on the slide block body are conveyed to the position corresponding to the slide block end cover automatic locking component from the ball assembly area; the automatic locking component of the sliding block end cover is used for automatically locking the sliding block body and the sliding block end cover.

Description

Automatic assembling machine for precision slide block and ball and assembling method thereof

Technical Field

The invention relates to the technical field of precision slide block production, in particular to an automatic precision slide block ball assembling machine and an assembling method thereof.

Background

The linear guide rail is also called a linear guide rail and a linear slide rail, comprises a high-precision guide rail and a slide block component, is used for linear reciprocating motion occasions, can realize high-precision linear motion under the condition of high load, is a guide motion component commonly used in the industrial field, and is an indispensable basic component in the fields of machine tools, automation equipment and the like. Because of high precision requirement, domestic users generally prefer to adopt Germany, Japan and other foreign brands of linear guide rails, domestic enterprises for producing high-precision linear guide rails are still few, domestic products have great difference with foreign advanced levels in the aspects of technical performance, level and industrialization, the market share of high-grade rolling functional part products is lower than 5%, the market share of medium-grade rolling functional part products is lower than 30%, and the high-grade rolling functional part products become one of bottlenecks for restricting the rapid development of domestic high-grade numerical control machines; as the price of the foreign brand linear guide rail is high, most domestic users still want the domestic brand high-precision linear guide rail to further improve the precision and the quality and further seize the market share.

To improve slider part precision and quality, each process step in the production process requires refinement. After the slider body parts in the slider parts are machined, balls with matched precision need to be filled in the roller paths of the slider bodies, and because the number of the balls needing to be assembled in each slider is large and the roller path structure of the slider is complex, the assembly of domestic enterprises at present can only be carried out manually by adopting a simple assembly fixture; when adopting hand frock, the assembly speed is slow, and the condition that the ball quantity lacks appears easily in the assembling process, need detect many times after the assembly, lead to the assembly efficiency low, receive manual operation influence, be unfavorable for improving precision retentivity, reliability, the life of slider part when hand frock is in the time of moreover, urgent need further improvement.

Because the automatic assembly equipment of the high-precision slide block component has a complex structure and high assembly process difficulty, the automatic assembly equipment of the slide block and the production process are protected as technical secrets by various overseas major brands, and at present, related technologies and patent documents, such as Japanese THK, NSK and IKO, Germany REXROTH Lishi, Shangyin science and technology corporation limited and other brands do not see patent applications related to the automatic assembly aspect of the high-precision slide block component. And domestic enterprises do not see patent application in the aspect of automatic assembly of high-precision slide block components.

At present, slide rail production enterprises in the field of domestic furniture drawers research and develop automatic assembly equipment and apply for patents, for example, the application publication number is CN107225381A, and the patent name is an automatic assembly machine for drawer slide rails, which is disclosed by a slide rail automatic assembly machine; the application publication No. CN109848695A discloses a ball bearing mechanism of an automatic slide rail assembly assembling machine for assembling balls in slide rail assemblies. However, the drawer slide rail structure is completely different from the linear guide rail structure, the linear guide rail is a high-precision product, the application occasions are different, and the patent documents in the above fields and the like have no reference significance.

Therefore, the automatic assembly equipment for the high-precision slide block component product can only be completely independently and independently researched and developed according to the production process of an enterprise, and the research and development process needs to comprehensively coordinate the assembly process, automatically convey the product, position and clamp, design an automatic execution mechanism, control programs and other problems, so that the automatic assembly equipment for the high-precision slide block component which is really suitable for the production enterprise can be developed.

Disclosure of Invention

In order to solve the above problems, an object of the present invention is to provide an automatic precision slider ball assembling machine and an assembling method thereof, which can automatically and quantitatively obtain balls with different precision sizes from a ball supply device according to dimensional data of a raceway in a slider body detected before assembly, and perform automatic assembly, wherein the ball assembling machine can automatically lock the slider body and a slider end cover together, and has the advantages of high automatic feeding and assembling efficiency, good assembling precision, and improvement of precision retentivity, reliability and service life of a slider part.

In order to achieve the purpose, the invention adopts the following technical scheme:

an automatic assembling machine for precision slide block balls comprises a rack and a large bottom plate fixed on the rack, wherein a ball supply part, a numerical control double-shaft automatic ball conveying part, a numerical control single-shaft displacement part and a slide block end cover automatic locking part are sequentially arranged on the large bottom plate; the ball supply part is internally provided with a mounting bracket and more than two sets of ball supply conveying components, and the numerical control double-shaft automatic ball conveying part is provided with an automatic ball taking part capable of reciprocating and quantitatively acquiring balls; the numerical control single-shaft displacement component is provided with an assembling and positioning clamp, a slider body to be assembled is fixed on the assembling and positioning clamp, an assembling transition clamp capable of being movably taken and placed is arranged on the slider body in a ball assembling process, and a ball guide channel is arranged in the assembling transition clamp; the numerical control double-shaft automatic ball conveying component is used for driving the automatic ball taking component to take a corresponding number of balls from the ball supply conveying assembly, moving the balls to a ball assembly area to be correspondingly aligned with the assembly transition fixture, releasing the balls conveyed by the balls into the assembly transition fixture and then assembling the balls into a roller path of the slider body; the numerical control single-shaft displacement component is used for conveying the slide block body after the ball assembly and the slide block end cover placed on the slide block body are conveyed to the position corresponding to the slide block end cover automatic locking component from the ball assembly area; the automatic locking component of the sliding block end cover is used for automatically locking the sliding block body and the sliding block end cover.

Furthermore, the ball supply conveying assembly comprises a material barrel, a ball falling mechanism plate and a movable sliding plate, the upper end of the ball falling mechanism plate is connected with the bottom of the material barrel, a blanking channel is arranged in the ball falling mechanism plate, the movable sliding plate is arranged in a guide groove at the lower end of the ball falling mechanism plate and movably blocks the blanking channel, and the movable sliding plate is connected with a sliding guide assembly and a reset spring.

Furthermore, an X-axis motion platform consisting of a first guide rail assembly, a first ball screw and a first servo motor driving assembly is arranged in the numerical control double-shaft automatic ball conveying component, a Y-axis motion platform consisting of a second guide rail assembly, a second ball screw and a second servo motor driving assembly is arranged on the X-axis motion platform, and the automatic ball taking component is arranged on the Y-axis motion platform.

Furthermore, at least one group of replaceable ball bearing pipes are arranged in the automatic ball taking component, four thin pipes corresponding to a raceway inlet in the slider body are arranged in each group of ball bearing pipes, a movable plugging mechanism is arranged at the lower end of each group of ball bearing pipe, the ball bearing pipes are fixed in a ball pipe mounting plate, guide sliding plates are arranged on two sides of the ball pipe mounting plate, a guide shaft is sleeved in each guide sliding plate, the lower end of the guide shaft is fixed on the Y-axis motion platform, a movable ball taking mechanism is arranged on the top surface of the ball pipe mounting plate and comprises a top air cylinder mounting plate, a horizontal air cylinder and a ball taking deflector rod, the air cylinder mounting plate is mounted on the ball pipe mounting plate, the horizontal air cylinder is mounted on the air cylinder mounting plate, and the ball taking deflector rod is fixed at the output end of the horizontal air cylinder, the bottom of pearl pipe mounting panel is equipped with the jacking cylinder, when getting the pearl the jacking cylinder jack-up the pearl pipe mounting panel, through get the pearl driving lever and promote the activity slide makes the ball of storage in the pearl mechanism board pass through the blanking passageway falls into realize in the ball accepting pipe that the ball ration is acquireed.

Furthermore, the movable plugging mechanism comprises a movable plugging plate and a plugging driving cylinder, the movable plugging plate movably covers the lower end of the ball bearing pipe, the movable plugging plate is fixed at the output end of the plugging driving cylinder, and the plugging driving cylinder is fixed on the ball pipe mounting plate through a connecting plate.

Furthermore, a single-shaft motion platform consisting of a third guide rail assembly, a third ball screw and a third servo motor driving assembly is arranged in the numerical control single-shaft displacement component, and a clamp fixing plate is arranged on the single-shaft motion platform; the assembly positioning fixture comprises a sliding block positioning base and a sliding block positioning upright post which are arranged on the fixture fixing plate, and the sliding block body is limited and positioned by the sliding block positioning base and the sliding block positioning upright post.

Furthermore, a gantry type two-axis numerical control motion platform is arranged in the automatic locking component of the sliding block end cover, an automatic screw locking device is arranged on the two-axis numerical control motion platform, and the automatic screw locking device is connected with an external automatic screw feeding device.

According to the assembling method of the precision slide block ball automatic assembling machine, the assembling method comprises the following steps:

s1, preparing quantitative ball taking: the ball supply and conveying assemblies are placed according to numbers, balls with different precision sizes are placed in material cylinders corresponding to different numbers, according to size data of a roller path in the slider body obtained through detection before assembly, through program setting control, the numerical control double-shaft automatic ball conveying component drives the automatic ball taking component to move below a corresponding ball falling mechanism plate, and the ball bearing pipe is aligned to the position of a blanking channel;

s2, feeding of the slider body: before assembling the balls, the initial position of the numerical control single-shaft displacement component is positioned in the ball assembling area, the sliding block body is placed on the assembling and positioning fixture, and the assembling and transition fixture is placed on the sliding block body;

s3, quantitatively taking materials by using balls: the jacking cylinder jacks up the ball tube mounting plate, the horizontal cylinder retracts, the movable sliding plate is driven by the ball taking deflector rod to move, so that balls enter the ball receiving tube through the blanking channel, a set number of balls are obtained after the balls in the ball receiving tube are filled, the horizontal cylinder and the jacking cylinder are reset in sequence, the blanking channel is sealed by the movable sliding plate, the numerical control double-shaft automatic ball conveying component drives the automatic ball taking component to move to a ball assembling area from the lower part of the ball falling mechanism plate, and the lower end of the ball receiving tube is aligned with an inlet of a ball guide channel in the assembling transition fixture;

s4, assembling the balls: the movable plugging mechanism is characterized in that a plugging driving cylinder in the movable plugging mechanism drives a movable plugging plate to move, balls in the ball bearing pipe fall into a roller path of the sliding block body through a ball guide channel in the assembling transition fixture, and the assembly is completed after all the balls enter the sliding block body;

s5, loading of a slide block end cover: taking down the assembly transition fixture arranged on the sliding block body, and arranging an upper sliding block end cover on the sliding block body;

s6, automatically locking the end cover: the numerical control single-shaft displacement component drives the sliding block body and the sliding block end cover to move together from an initial position to a position corresponding to the automatic sliding block end cover locking component, and the automatic sliding block end cover locking component automatically conveys screws to lock the sliding block body and the sliding block end cover together;

s7, blanking of finished products: and the numerical control single-shaft displacement component drives the locked slide block body and the slide block end cover to return to the initial position, and a finished product is taken down and circularly operated.

Further, when the ball is assembled in step S4, a vibration device is added to the bottom of the assembly positioning fixture or the fixture fixing plate to apply a vibration force, so that the assembly transition fixture and the slider body vibrate along with the assembly positioning fixture in the ball blanking process.

Further, before the ball assembly in the step S4 and after the ball assembly is completed, adding lubricating oil into the raceway of the slider body through the ball guide channel in the assembly transition fixture; the upper part of the assembling transition fixture is provided with a removable automatic oiling device which is connected with an external lubricating oil supply device through an oiling pipe.

The invention has the following beneficial effects:

1. according to the invention, through analyzing the assembly process of the slide block ball, a ball supply part, a numerical control double-shaft automatic ball conveying part, a numerical control single-shaft shifting part and a slide block end cover automatic locking part are arranged aiming at the assembly process, the numerical control double-shaft automatic ball conveying part is used for driving the automatic ball taking part to reciprocate so as to realize the quantitative ball obtaining and feeding, the numerical control single-shaft shifting part is used for conveying the slide block body after the ball assembly and the placed slide block end cover together from a ball assembly area to the slide block end cover automatic locking part for automatic locking, the assembly automation degree is high, the assembly efficiency is high, and the assembly precision is good;

2. according to the invention, the ball supply part is provided with a plurality of sets of ball supply conveying assemblies, and balls with different dimensional accuracies can be placed in each set of ball supply conveying assembly, so that the balls with different dimensional accuracies can be conveniently selected for precision matching assembly according to dimensional data of a raceway in the slider body obtained by detection before assembly, and the accuracy of a slider product after assembly can be better ensured; the automatic blanking and conveying ball structure of the ball supply conveying assembly is stable and reliable, and can smoothly convey balls;

3. the automatic ball fetching component is provided with at least one group of replaceable ball bearing pipes, the ball bearing pipes with different lengths and diameters can be replaced when the specifications of the sliding block are changed, the number of balls to be assembled in the sliding block can be quantitatively obtained by utilizing the lengths of the group of ball bearing pipes, and the automatic matching operation of the movable plugging mechanism and the movable ball fetching mechanism ensures that the number of the balls in the assembling process is accurate, the phenomenon of ball missing cannot occur, and the automatic and smooth realization of ball assembling is ensured;

4. the numerical control double-shaft automatic ball conveying component and the numerical control single-shaft displacement component are composed of high-precision guide rail assemblies, ball screws and servo motors, can accurately move and position through programming control of the controller, realize the conveying and positioning of parts such as balls, sliding block bodies and the like, have high running speed, and further ensure the assembly efficiency;

5. the special assembly positioning fixture is arranged to well position the sliding block body, so that the positioning is accurate and reliable, and the sliding block body is not easy to move and run during assembly; the assembly transition fixture and the slider body can slightly vibrate along with the assembly positioning fixture in the ball blanking process, balls obtained quantitatively from the ball bearing pipes are accurately loaded into a roller path in the slider body, accurate assembly is guaranteed to be in place, the balls cannot be clamped in the ball guide channel, assembly is smooth and reliable, and faults are not prone to occurring;

6. according to the invention, the automatic conveying screw of the automatic sliding block end cover locking component is arranged to lock the sliding block body and the sliding block end cover together, the gantry type two-axis numerical control motion platform is arranged in the automatic sliding block end cover locking component, the position can be adjusted and set through programming control, the accuracy of the locking position is ensured, the adaptability is strong, and sliding blocks of various specifications can be automatically locked.

In a word, the invention designs the special assembly equipment suitable for the automatic feeding and assembly of the slide block, the ball and the end cover by coordinating the problems of the ball assembly process, the automatic conveying of the ball, the positioning and clamping of the slide block, the automatic assembly mechanism, the program control and the like, has high assembly efficiency and good assembly precision, is beneficial to improving the precision retentivity, the reliability and the service life of the slide block part, and reserves further improved space for partial procedures of the special assembly equipment, such as the automatic feeding part of the end cover, and is suitable for gradual improvement.

Drawings

FIG. 1 is a schematic front view of an automatic precision slide ball assembling machine according to the present invention;

FIG. 2 is a schematic perspective view of the automatic precision slide ball assembling machine of the present invention;

FIG. 3 is a schematic perspective view of the numerically controlled dual axis automatic bead handling assembly of the present invention;

FIG. 4 is a perspective view of the ball supply unit according to the present invention;

FIG. 5 is an exploded view of the ball supply unit of the present invention;

FIG. 6 is a perspective view of a portion of the numerically controlled single-axis displacement component and the assembly positioning fixture of the present invention;

FIG. 7 is a schematic front view of an automatic bead picking assembly of the present invention;

FIG. 8 is a schematic perspective view of an automatic bead picking assembly according to the present invention;

FIG. 9 is a schematic cross-sectional view of a portion of the slide, assembly alignment fixture and assembly transition fixture of the present invention.

Description of reference numerals:

1. a frame; 2. a large bottom plate; 3. a ball supply part; 31. mounting a bracket; 32. a ball supply and delivery assembly; 321. a charging barrel; 322. a bead falling mechanism plate; 3221. a blanking channel; 3222. a guide groove; 323. a movable skateboard; 324. a sliding guide assembly; 325. a return spring; 4. a numerical control double-shaft automatic bead conveying component; 41. an X-axis motion stage; 411. a first rail assembly; 412. a first ball screw; 413. a first servo motor drive assembly; 42. a Y-axis motion stage; 421. a second rail assembly; 422. a second ball screw; 423. a second servo motor drive assembly; 5. a numerically controlled single-axis displacement component; 51. a single axis motion platform; 511. a third rail assembly; 512. a third ball screw; 513. a third servo motor drive assembly; 52. fixing a clamp plate; 6. the automatic locking part of the end cover of the sliding block; 61. a two-axis numerical control motion platform; 62. an automatic screw locking device; 7. an automatic bead-taking component; 71. a ball bearing pipe; 72. a movable plugging mechanism; 721. a movable plugging plate; 722. plugging the driving cylinder; 723. a connecting plate; 73. mounting a bead tube; 74. a guide slide plate; 75. a guide shaft; 76. a movable bead taking mechanism; 761. a cylinder mounting plate; 762. a horizontal cylinder; 763. a bead taking deflector rod; 77. jacking a cylinder; 8. assembling a positioning clamp; 81. a slider positioning base; 82. the slide block positions the upright post; 9. assembling a transition clamp; 901. a ball guide channel; 100. a slider body; 101. a slider end cap; 200. a ball assembly region.

Detailed Description

The invention is described in further detail below with reference to the following figures and specific examples:

referring to fig. 1-9, an automatic assembling machine for precision slide block balls comprises a frame 1 and a large bottom plate 2 fixed on the frame 1, wherein a ball supply part 3, a numerical control double-shaft automatic ball conveying part 4, a numerical control single-shaft displacement part 5 and an automatic slide block end cover locking part 6 are sequentially arranged on the large bottom plate 2; the ball supply component 3 is provided with a mounting bracket 31 and more than two sets of ball supply conveying components 32, nine sets of ball supply conveying components 32 arranged according to numbers are arranged in the embodiment, and the numerical control double-shaft automatic ball conveying component 4 is provided with an automatic ball taking component 7 capable of reciprocating and quantitatively obtaining balls; the numerical control single-shaft displacement component 5 is provided with an assembling and positioning clamp 8, a slider body 100 to be assembled is fixed on the assembling and positioning clamp 8, an assembling transition clamp 9 capable of being movably taken and placed is arranged on the slider body 100 in the ball assembling process, the assembling transition clamp 9 can be formed by combining more than two parts for processing, and a ball guide channel 901 is arranged in the assembling transition clamp 9; the numerical control double-shaft automatic ball conveying component 4 is used for driving the automatic ball taking component 7 to take a corresponding number of balls from the ball supply conveying assembly 32, move the balls to a ball assembly area 200 to be correspondingly aligned with the assembly transition fixture 9, release the balls conveyed by the balls into the assembly transition fixture 9 and then assemble the balls into the roller path of the slider body 100; the numerical control single-shaft displacement component 5 is used for conveying the slide block body 100 after the ball assembly is finished and the slide block end cover 101 placed on the slide block body again to a position corresponding to the slide block end cover automatic locking component 6 from the ball assembly area 200; the slider end cover automatic locking component 6 is used for automatically locking the slider body 100 and the slider end cover 101.

In the embodiment, in the ball assembling process, the assembly transition fixture 9 on the slider body 100 is movably picked and placed by manual operation, and after the equipment runs stably, a set of mechanical arm automatic operation for automatically picking and placing the assembly transition fixture 9 can be added; in this embodiment, the upper slider end cover 101 is also manually operated, and subsequently, a manipulator for automatically conveying and loading the slider end cover 101 and automatically placing the slider end cover can be added, so that a further improved space is reserved.

The detailed structure of the numerical control double-shaft automatic bead conveying component 4 and the numerical control single-shaft displacement component 5 is designed by adopting the conventional technical means known by mechanical technicians in the field, the numerical control double-shaft automatic bead conveying component 4, the numerical control single-shaft displacement component 5 and the whole machine electrical control part are electrically designed and controlled by PLC programming by adopting the conventional technical means known by electrical technicians in the field, and an electrical control circuit can be arranged inside the rack 1. A cover can be added on the frame 1 to surround the upper part of the whole machine, so that the protection performance is improved.

Referring to fig. 4-5, the ball supply and delivery assembly 32 includes a barrel 321, a ball dropping mechanism plate 322 and a movable sliding plate 323, the upper end of the ball dropping mechanism plate 322 is connected to the bottom of the barrel 321, a blanking channel 3221 is arranged in the ball dropping mechanism plate 322, the movable sliding plate 323 is arranged in a guide groove 3222 at the lower end of the ball dropping mechanism plate 322 to movably block the blanking channel 3221, and the movable sliding plate 323 is connected with a sliding guide assembly 324 and a return spring 325; the inlet of the blanking channel 3221 is provided with a bell mouth for receiving the balls.

The numerical control double-shaft automatic ball conveying component 4 is internally provided with an X-axis moving platform 41 consisting of a first guide rail component 411, a first ball screw 412 and a first servo motor driving component 413, the X-axis moving platform 41 is provided with a Y-axis moving platform 42 consisting of a second guide rail component 421, a second ball screw 422 and a second servo motor driving component 423, the automatic ball taking component 7 is arranged on the Y-axis moving platform 42, and the X-axis moving platform 41 and the Y-axis moving platform 42 are provided with corresponding connecting parts which can refer to parts which are not marked in the drawing.

Referring to fig. 7-8, at least one set of replaceable ball receiving tubes 71 is disposed in the automatic ball fetching component 7, four narrow tubes corresponding to the raceway inlets in the slider body 100 are disposed in each set of ball receiving tubes 71, a movable blocking mechanism 72 is disposed at the lower end of each set of ball receiving tubes 71, the ball receiving tubes 71 are fixed in a ball tube mounting plate 73, guide sliding plates 74 are disposed at two sides of the ball tube mounting plate 73, a guide shaft 75 is sleeved in the guide sliding plates 74, the lower end of the guide shaft 75 is fixed on the Y-axis moving platform 42, a movable ball fetching mechanism 76 is disposed on the top surface of the ball tube mounting plate 73, the movable ball fetching mechanism 76 includes a top cylinder mounting plate 761, a horizontal cylinder 762 and a ball fetching shift lever 763, the cylinder mounting plate 761 is mounted on the ball tube mounting plate 73, the horizontal cylinder 762 is mounted on the cylinder mounting plate 761, the bead taking shift lever 763 is fixed at the output end of the horizontal cylinder 762, the bottom of the bead tube mounting plate 73 is provided with a jacking cylinder 77, when beads are taken, the jacking cylinder 77 jacks up the bead tube mounting plate 73, the movable sliding plate 323 is pushed by the bead taking shift lever 763, so that the balls stored in the bead falling mechanism plate 322 fall into the ball receiving pipe 71 through the blanking channel 3221 to realize quantitative acquisition of the balls.

In order to ensure the assembly precision, one sliding block can be assembled at a time by using one group of ball bearing pipes 71, in the embodiment, two groups of ball bearing pipes 71 are designed, two sliding blocks can be assembled at a time, and the requirement of the two sliding blocks on the equipment and part machining precision is higher.

The movable plugging mechanism 72 comprises a movable plugging plate 721 and a plugging driving cylinder 722, the movable plugging plate 721 movably covers the lower end of the ball bearing tube 71, the movable plugging plate 721 is fixed at the output end of the plugging driving cylinder 722, and the plugging driving cylinder 722 is fixed on the ball tube mounting plate 73 through a connecting plate 723.

The numerical control single-shaft displacement component 5 is internally provided with a single-shaft motion platform 51 consisting of a third guide rail assembly 511, a third ball screw 512 and a third servo motor driving assembly 513, and the single-shaft motion platform 51 is provided with a clamp fixing plate 52; in order to save space, in the embodiment, the third ball screw 512 and the third servo motor driving assembly 513 are installed on the bottom surface of the large bottom plate 2, the third guide rail assembly 511 is installed on the large bottom plate 2, a long groove is formed in the large bottom plate 2, and a moving connecting piece penetrating through the long groove is arranged between the fixture fixing plate 52 and the third ball screw 512 for connection, so that the height of the single-shaft moving platform 51 is reduced, and the single-shaft moving platform cannot interfere with the numerical control double-shaft automatic ball conveying component 4 and the sliding block end cover automatic locking component 6 during moving.

The positioning jig 8 includes a slide block positioning base 81 and a slide block positioning pillar 82, which are placed on the jig fixing plate 52, and the slide block body 100 is limited in positioning by the slide block positioning base 81 and the slide block positioning pillar 82.

A gantry type two-axis numerical control motion platform 61 is arranged in the automatic locking component 6 of the sliding block end cover, an automatic screw locking device 62 is arranged on the two-axis numerical control motion platform 61, and the automatic screw locking device 62 is connected with an external automatic screw feeding device. The automatic locking part 6 of the sliding block end cover and the external automatic screw feeding device are designed conventionally by mechanical technicians in the field, and the automatic locking part can also be purchased to complete production of the equipment by merchants.

According to the assembling method of the precision slide block ball automatic assembling machine, the assembling method comprises the following steps:

s1, preparing quantitative ball taking: the ball supply and conveying components 32 are placed according to numbers, balls with different precision sizes are placed in the material barrels 321 corresponding to different numbers, according to size data of a roller path in the slider body 100 obtained through detection before assembly, through program setting control, the automatic ball taking component 7 is driven by the numerical control double-shaft automatic ball conveying component 4 to move below the corresponding ball falling mechanism plate 322, and the ball bearing pipe 71 is aligned with the position of the ball falling channel 3221;

s2, feeding of the slider body 100: before ball assembly, the initial position of the numerical control single-shaft displacement component 5 is in the ball assembly area 200, the slider body 100 is placed on the assembly positioning fixture 8, and the assembly transition fixture 9 is placed on the slider body 100;

s3, quantitatively taking materials by using balls: the jacking cylinder 77 jacks up the ball tube mounting plate 73, the horizontal cylinder 762 retracts, the movable sliding plate 323 is driven by a ball taking shift lever 763 to move, so that balls enter the ball receiving tube 71 through the blanking channel 3221, a set number of balls are obtained after the ball receiving tube 71 is filled with the balls, the horizontal cylinder 762 and the jacking cylinder 77 are reset in sequence, the movable sliding plate 323 seals the blanking channel 3221 again, the numerical control double-shaft automatic ball conveying component 4 drives the automatic ball taking component 7 to move to the ball assembling area 200 from below the ball falling mechanism plate 322, and the lower end of the ball receiving tube 71 is aligned with an inlet of a ball guide channel 901 in the assembling transition fixture 9;

s4, assembling the balls: the plugging driving cylinder 722 in the movable plugging mechanism 72 drives the movable plugging plate 721 to move, the balls in the ball bearing tubes 71 fall into the raceway of the slider body 100 through the ball guide channels 901 in the assembly transition fixture 9, and the assembly is completed after all the balls enter the slider body 100; the movable plugging plate 721 is a thin plate structure, and in the process that the movable plugging plate 721 is moved away from the bottom of the ball bearing tube 71, a gap between the bottom of the ball bearing tube 71 and the top of the assembly transition fixture 9 is small, so that balls cannot fall out of the assembly transition fixture 9.

S5, feeding of a slider end cover 101: taking down the assembly transition fixture 9 placed on the slider body 100, and placing a slider end cover 101 on the slider body 100;

s6, automatically locking the end cover: the numerical control single-shaft displacement component 5 drives the sliding block body 100 and the sliding block end cover 101 to move together from an initial position to a position corresponding to the automatic sliding block end cover locking component 6, and the automatic sliding block end cover locking component 6 automatically conveys screws to lock the sliding block body 100 and the sliding block end cover 101 together;

s7, blanking of finished products: and the numerical control single-shaft displacement part 5 drives the locked slide block body 100 and the slide block end cover 101 to return to the initial positions, and the finished products are taken down and operated circularly.

Further, when the balls are assembled in step S4, a vibration device is added at the bottom of the assembly positioning fixture 8 or the fixture fixing plate 52 to apply a vibration force, so that the assembly transition fixture 9 and the slider body 100 vibrate along with the assembly positioning fixture 8 in the ball blanking process, and the vibration device may be a pneumatic vibrator or an electromagnetic vibrator.

Further, before the ball assembly and after the ball assembly in the step S4 is completed, lubricating oil is added into the raceway of the slider body 100 through the ball guide passage 901 in the assembly transition fixture 9, the upper portion of the assembly transition fixture 9 is provided with a removable automatic oiling device, the automatic oiling device is provided with an oiling nozzle, and the automatic oiling device is connected with an external lubricating oil supply device through an oiling pipe; the automatic oiling device can also be directly arranged on the bottom surface of the Y-axis moving platform 42 in the numerical control double-shaft automatic ball conveying component 4 (the oiling device is not shown in the embodiment).

Further, before the slider body 100 is loaded in step S2, a slider end cover 101 needs to be locked at one end of the slider body 100 in advance to prevent the balls from leaking out of the lower end of the slider body 100; the end of the slider body 100, which is pre-locked with the slider end cover 101, is placed on the assembly positioning jig 8; the slider end cover 101 is locked on the slider body 100 in advance, and the slider end cover automatic locking part 6 can also be used for automatic locking, so that the slider end cover automatic locking part 6 is fully utilized for alternative work before the quantitative material taking of the balls, and the utilization rate of the slider end cover automatic locking part 6 is improved (the slider end cover automatic locking part 6 can be further used for excavation due to spare waiting time before the quantitative material taking of the balls).

In this embodiment, both ends of the slider body 100 include the ball retainers pre-installed thereon, and when the present invention is used, the automatic assembly of the balls in the slider and the automatic locking of the end caps can be completed by operating according to the above assembly method.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent structural changes made by using the contents of the present specification and the drawings, or applied directly or indirectly to other related technical fields, are included in the scope of the present invention.

Claims (10)

1. The utility model provides a precision slide block ball automatic assembly machine, includes frame (1) and fixes big bottom plate (2) in frame (1), its characterized in that: the large bottom plate (2) is sequentially provided with a ball supply component (3), a numerical control double-shaft automatic ball conveying component (4), a numerical control single-shaft displacement component (5) and a sliding block end cover automatic locking component (6);

the ball supply part (3) is internally provided with a mounting bracket (31) and more than two sets of ball supply and conveying assemblies (32), and the numerical control double-shaft automatic ball conveying part (4) is provided with an automatic ball taking part (7) capable of reciprocating and quantitatively acquiring balls;

an assembling and positioning clamp (8) is arranged on the numerical control single-shaft displacement component (5), a slider body (100) to be assembled is fixed on the assembling and positioning clamp (8), an assembling transition clamp (9) capable of being movably taken and placed is arranged on the slider body (100) in the ball assembling process, and a ball guide channel (901) is arranged in the assembling transition clamp (9);

the numerical control double-shaft automatic ball conveying component (4) is used for driving the automatic ball taking component (7) to take a corresponding number of balls from the ball supply conveying assembly (32), move to a ball assembling area (200) to be correspondingly aligned with the position of the assembling transition fixture (9), release the balls conveyed by the ball taking component into the assembling transition fixture (9) and then assemble the balls into the roller path of the slider body (100);

the numerical control single-shaft displacement component (5) is used for conveying the slider body (100) after the ball assembly and the slider end cover (101) placed on the slider body again to the corresponding position of the slider end cover automatic locking component (6) from the ball assembly area (200);

the automatic locking component (6) of the sliding block end cover is used for automatically locking the sliding block body (100) and the sliding block end cover (101).

2. The precision slide ball automatic assembling machine according to claim 1, characterized in that: the ball supply conveying assembly (32) comprises a charging barrel (321), a ball falling mechanism plate (322) and a movable sliding plate (323), the upper end of the ball falling mechanism plate (322) is connected with the bottom of the charging barrel (321), a blanking channel (3221) is arranged in the ball falling mechanism plate (322), the movable sliding plate (323) is arranged in a guide groove (3222) at the lower end of the ball falling mechanism plate (322) to movably block the blanking channel (3221), and the movable sliding plate (323) is connected with a sliding guide assembly (324) and a return spring (325).

3. The precision slide ball automatic assembling machine according to claim 2, characterized in that: be equipped with X axle motion platform (41) of constituteing by first guide rail subassembly (411), first ball (412) and first servo motor drive assembly (413) in numerical control biax automatic fortune pearl part (4), be equipped with Y axle motion platform (42) of constituteing by second guide rail subassembly (421), second ball (422) and second servo motor drive assembly (423) on X axle motion platform (41), automatic get pearl part (7) and locate on Y axle motion platform (42).

4. The precision slide ball automatic assembling machine according to claim 3, characterized in that: be equipped with at least a set of removable ball accepting pipe (71) in the automatic pearl component of getting (7), every group be equipped with in ball accepting pipe (71) with four tubules that the raceway entry in slider body (100) corresponds, every group ball accepting pipe (71) lower extreme is equipped with movable plugging mechanism (72), ball accepting pipe (71) are fixed in pearl pipe mounting panel (73), the both sides of pearl pipe mounting panel (73) are equipped with direction slide (74), the cover is equipped with guiding axle (75) in direction slide (74), the lower extreme of guiding axle (75) is fixed on Y axle motion platform (42), the top surface of pearl pipe mounting panel (73) is equipped with a activity and gets pearl mechanism (76), the activity is got pearl mechanism (76) and is including top cylinder mounting panel (761), horizontal cylinder (762) and get pearl (763), cylinder mounting panel (761) are installed on pearl pipe mounting panel (73), horizontal cylinder (762) are installed on cylinder mounting panel (761), it fixes to get pearl driving lever (763) horizontal cylinder (762) output, the bottom of pearl pipe mounting panel (73) is equipped with jacking cylinder (77), when getting the pearl jacking cylinder (77) jack-up pearl pipe mounting panel (73), through get pearl driving lever (763) and promote movable slide (323), make the ball of storage in falling pearl mechanism board (322) pass through blanking passageway (3221) fall into realize in ball bearing tube (71) that the ball ration is acquireed.

5. The precision slide ball automatic assembling machine according to claim 4, characterized in that: the movable plugging mechanism (72) comprises a movable plugging plate (721) and a plugging driving cylinder (722), the movable plugging plate (721) movably covers the lower end of the ball bearing tube (71), the movable plugging plate (721) is fixed at the output end of the plugging driving cylinder (722), and the plugging driving cylinder (722) is fixed on the ball tube mounting plate (73) through a connecting plate (723).

6. The precision slide ball automatic assembling machine according to claim 5, characterized in that: a single-shaft moving platform (51) consisting of a third guide rail assembly (511), a third ball screw (512) and a third servo motor driving assembly (513) is arranged in the numerical control single-shaft displacement component (5), and a clamp fixing plate (52) is arranged on the single-shaft moving platform (51); the assembling and positioning clamp (8) comprises a sliding block positioning base (81) and a sliding block positioning upright post (82) which are placed on the clamp fixing plate (52), and the sliding block body (100) is limited and positioned through the sliding block positioning base (81) and the sliding block positioning upright post (82).

7. The precision slide ball automatic assembling machine according to claim 1 or 5, wherein: the automatic locking part (6) of the sliding block end cover is internally provided with a gantry type two-axis numerical control motion platform (61), the two-axis numerical control motion platform (61) is provided with an automatic screw locking device (62), and the automatic screw locking device (62) is connected with an external automatic screw feeding device.

8. The assembling method of the precision slide ball automatic assembling machine according to claim 6, characterized in that: the method comprises the following steps:

s1, preparing quantitative ball taking: the ball supply and conveying assemblies (32) are placed according to numbers, balls with different precision sizes are placed in the material cylinders (321) corresponding to different numbers, according to size data of a roller path in the slider body (100) obtained through detection before assembly, through program setting control, the automatic ball taking component (7) is driven by the numerical control double-shaft automatic ball conveying component (4) to move below the corresponding ball falling mechanism plate (322), and the ball bearing tubes (71) are aligned with the blanking channels (3221);

s2, feeding of the slider body (100): before ball assembly, the initial position of the numerical control single-shaft displacement component (5) is in the ball assembly area (200), the slide block body (100) is placed on the assembly positioning clamp (8), and the assembly transition clamp (9) is placed on the slide block body (100);

s3, quantitatively taking materials by using balls: the jacking cylinder (77) jacks up the ball tube mounting plate (73), the horizontal cylinder (762) retracts, the movable sliding plate (323) is driven by a ball taking shift lever (763) to move, so that balls enter the ball receiving tube (71) through the blanking channel (3221), a set number of balls are obtained after the balls in the ball receiving tube (71) are filled, the horizontal cylinder (762) and the jacking cylinder (77) reset in sequence, the blanking channel (3221) is sealed by the movable sliding plate (323), the numerical control double-shaft automatic ball conveying component (4) drives the automatic ball taking component (7) to move to a ball assembling area (200) from the lower part of the ball falling mechanism plate (322), and the lower end of the ball receiving tube (71) is aligned with an inlet of a ball guiding channel (901) in the assembling transition clamp (9);

s4, assembling the balls: a plugging driving cylinder (722) in the movable plugging mechanism (72) drives a movable plugging plate (721) to move, balls in the ball bearing tubes (71) fall into a roller path of the slider body (100) through a ball guide channel (901) in the assembly transition clamp (9), and the assembly is completed after all the balls enter the slider body (100);

s5, feeding of a slider end cover (101): taking down the assembling transition fixture (9) placed on the sliding block body (100), and placing a sliding block end cover (101) on the sliding block body (100);

s6, automatically locking the end cover: the numerical control single-shaft displacement component (5) drives the sliding block body (100) and the sliding block end cover (101) to move together from an initial position to a position corresponding to the automatic sliding block end cover locking component (6), and the automatic sliding block end cover locking component (6) automatically conveys screws to lock the sliding block body (100) and the sliding block end cover (101) together;

s7, blanking of finished products: and the numerical control single-shaft displacement component (5) drives the locked slide block body (100) and the slide block end cover (101) to return to the initial position, and a finished product is taken down and circularly operated.

9. The assembling method of the precision slide ball automatic assembling machine according to claim 8, wherein: when the step S4 is performed to assemble the balls, a vibration device is added at the bottom of the assembly positioning fixture (8) or the fixture fixing plate (52) to apply a vibration force, so that the assembly transition fixture (9) and the slider body (100) vibrate along with the assembly positioning fixture (8) in the ball blanking process.

10. The assembling method of the precision slide ball automatic assembling machine according to claim 8, wherein: before and after the ball assembly in the step S4, adding lubricating oil into the roller path of the slider body (100) through a ball guide channel (901) in the assembly transition fixture (9); the upper part of the assembly transition fixture (9) is provided with a removable automatic oiling device, and the automatic oiling device is connected with an external lubricating oil supply device through an oiling pipe.

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