CN210339318U - Lead screw driving push rod device with embedded guide rail - Google Patents
Lead screw driving push rod device with embedded guide rail Download PDFInfo
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- CN210339318U CN210339318U CN201920517312.8U CN201920517312U CN210339318U CN 210339318 U CN210339318 U CN 210339318U CN 201920517312 U CN201920517312 U CN 201920517312U CN 210339318 U CN210339318 U CN 210339318U
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- push rod
- lead screw
- rail
- bearing
- guide rail
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Abstract
The utility model provides a lead screw drive push rod device with an embedded guide rail, which comprises a base, wherein a chute is arranged in the base, and a slide rail is arranged on the chute; a ball screw is arranged in the base and comprises a push rod, a slide block is connected to the push rod, reversers are arranged on the slide block, a circulating channel is arranged between the reversers, steel balls are arranged in the circulating channel, and the steel balls are matched with the slide rail; be equipped with screw-nut in the slider, be connected with the lead screw on the screw-nut, the lead screw runs through behind the slider right in extending to the push rod, the lead screw runs through first bearing left and is connected with the shaft coupling, and the shaft coupling is connected with the motor, and the left end of base is equipped with the second baffle, and the push rod runs through and is connected with the joint behind the second baffle, is equipped with the second bearing between second baffle and the push rod. The utility model discloses embedded lead screw drive push rod device of guide rail simple structure, convenient to use are swift, unique embedding guide rail design need not riveting fixed, have prolonged life effectively, have practiced thrift the maintenance of processing cost and the later stage of being convenient for.
Description
Technical Field
The utility model relates to an automation line, in particular to embedded lead screw drive push rod device of guide rail.
Background
The prior technical proposal mainly takes two solutions of embedded guide rail rolling guide represented by IAI of Japan and TOYO of Taiwan and mechanical anti-rotation by adding a push rod by other manufacturers; the existing embedded guide rail type solution is that a motor is connected with a ball screw through a coupler, and the ball screw is driven to rotate by the rotation of the motor; in order to convert the rotary motion into linear motion, the lead screw rotates and simultaneously limits the rotation of the lead screw nut, the scheme is that a guide rail is embedded in the profile and matched with a guide rail groove on a push rod sliding seat (the lead screw nut is sleeved in the push rod sliding seat), a ball gap is arranged between the guide rail grooves, the lead screw nut rotates at present, and the guide positioning effect is realized on the pull rod; the processing of the embedded guide rail on the base is realized by adopting the same mode for IAI and TOYO, inserting a specially-specified guide rail strip into a groove of a base aluminum profile, riveting and fixing the guide rail strip, and grinding the guide rail groove by using a grinding machine on the whole. For the treatment of the pull rod sliding seat, the IAI adopts the same mode as the base, the grinding processing is carried out after the guide rail is embedded and riveted, and the TOYO carries out the grinding processing on the pull rod sliding seat (no extra guide rail is arranged); the prior art has the following defects: firstly, the embedded guide rail on the base needs to be riveted and fixed after being installed, so that the assembly process is additionally increased, and the assembly cost is increased; secondly, after the embedded guide rail is embedded, grinding machining needs to be carried out again, the machining and clamping difficulty is high, and especially for a push rod cylinder with a long stroke, the machining is more difficult; thirdly, in order to process the base after the base is embedded into the guide rail, the base section bar cannot be made into a single closed section bar, and the cylinder body needs to be split into an upper half and a lower half, and the structure is relative to the single closed section bar: the types of the section bars are increased, the machining amount is increased, the assembly workload is increased, the integral rigidity of a finished product is reduced, and the sealing application of the product is more difficult; fourthly, the push rod cylinder embedded guide rail and the push rod of the push rod cylinder are eccentrically arranged, and finally the push rod has different performances in all directions.
SUMMERY OF THE UTILITY MODEL
【1】 Technical problem to be solved
The to-be-solved technical problem of the utility model is to provide an embedded lead screw drive push rod device of guide rail of the maintenance of simple structure, convenient to use are swift, long service life, low and the later stage of being convenient for of processing cost.
【2】 Technical scheme for solving problems
The utility model provides a guide rail embedded lead screw driving push rod device, which comprises a base, wherein the base is a cavity with openings at the left end and the right end, a chute is arranged in the cavity, and a slide rail is arranged on the chute; a push rod is arranged in the cavity, the right end of the push rod is connected with a slide block, the slide block is matched with the cavity, reversers are arranged at the left end and the right end of the slide block, a circulating channel is arranged between the reversers, steel balls are arranged in the circulating channel, and the steel balls are matched with the slide rail; a screw rod nut is arranged in the sliding block, the sliding block and the screw rod nut are locked through a first screw, a screw rod is connected onto the screw rod nut, the screw rod penetrates through the sliding block rightwards and then extends into the push rod, a gap is formed between the screw rod and the inner wall of the push rod, the screw rod penetrates through a first bearing leftwards and then is connected with a coupler, the other end of the coupler is connected with a motor, a fixed seat is arranged on the outer side of the coupler, an installation seat is arranged on the outer side of the motor, a first baffle is arranged at the right end of the installation seat, a bearing seat is arranged between the fixed seat and the base and used for fixing the first bearing; the left end of the base is provided with a second baffle, the push rod penetrates through the second baffle and then is connected with a joint, and a second bearing is arranged between the second baffle and the push rod.
Further, the sliding groove is in clearance fit with the sliding rail.
Further, the sliding groove is a V-shaped groove.
Furthermore, the number of the first bearings is two, and a locking nut is arranged on the first bearing at the right end.
Further, the first bearing is a deep groove ball bearing or an angular contact ball bearing.
Further, the second bearing is an oilless bearing.
Furthermore, the unilateral clearance between the screw rod and the inner wall of the push rod is more than or equal to 1mm and less than or equal to 3 mm.
Further, the motor is a stepping motor, a servo motor or a brushless direct current motor, and an encoder is arranged on the motor.
Furthermore, the number of the reversers is four, every two of the four reversers are arranged on the sliding block in a group in a diagonal manner, and one circulation channel is arranged between the two reversers in the same group.
Furthermore, each reverser is provided with a stop block, and the stop blocks are slidably matched on the slide rails.
【3】 Advantageous effects
The utility model discloses embedded lead screw drive push rod device of guide rail mainly has following several benefits: 1. the design of the unique embedded guide rail is that the matching contact surface of the guide rail and the guide rail groove of the section bar is V-shaped, so that the guide rail has a self-positioning function under the condition that the guide rail bar is stressed by extrusion, and the embedded guide rail in the base does not need to be riveted and fixed after being installed; 2. the guide rail is completely machined before being embedded: the guide rail does not need to be processed after being embedded, so that the processing difficulty of the product is greatly simplified; 3. the overall design of the base profile: the scheme has simple assembly and processing and few assembly parts; the product has good integral rigidity, symmetrical appearance and isotropic stress; and no matter the stroke length of the product, the processing and assembling difficulty is similar, and the consistency of the product in use is good.
Drawings
Fig. 1 is an exploded view of the guide rail embedded lead screw driving push rod device of the present invention;
fig. 2 is a cross-sectional view of the lead screw driving push rod device with embedded guide rails according to the present invention;
FIG. 3 is a perspective view of the push rod and the slide block of the lead screw embedded type lead screw driven push rod device of the present invention;
FIG. 4 is a schematic view of the structure of the slide block and the base of the lead screw embedded type lead screw driven push rod device of the present invention;
fig. 5 is an enlarged view of a portion a in fig. 4.
Detailed Description
The embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
Referring to fig. 1 to 5, the utility model provides a lead screw drive push rod device with an embedded guide rail, which comprises a base 11, wherein the base 11 is a cavity with openings at the left end and the right end, the shape of the interior of the cavity is the same as that of a slide block, a chute 111 is arranged on the inner wall of the cavity, and a slide rail 10 is arranged on the chute 111; a push rod 9 is arranged in the cavity, the right end of the push rod 9 is connected with a slide block 13, the slide block 13 is fixedly connected with the push rod 9, the slide block 13 is matched with the cavity, reversers 15 are arranged at the left end and the right end of the slide block 13, a circulating channel is arranged between the reversers 15 at the two ends, a steel ball 14 is arranged in the circulating channel, the circulating channel is filled with the steel ball 14, and the steel ball 14 is matched with the slide rail 10, namely the steel ball 14 is matched on the slide rail 10 in; a screw nut 17 is arranged in the slide block 13, in order to prevent the slide block 13 and the screw nut 17 from rotating, the slide block 13 and the screw nut 17 are locked by a first screw 16, a screw 8 is connected to the screw nut 17, the screw nut 17 and the screw 8 form a ball screw structure, the screw 8 penetrates through the slide block 13 rightwards and extends into the push rod 9, a gap is arranged between the inner walls of the screw 8 and the push rod 9, the screw 8 penetrates through the first bearing 7 leftwards and is connected with a coupler 6, the other end of the coupler 6 is connected with a motor 1, a fixed seat 4 is arranged on the outer side of the coupler 6, a mounting seat 3 is arranged on the outer side of the motor 1, a first baffle 2 is arranged at the right end of the mounting seat 3, a bearing seat 5 is arranged between the fixed seat 4 and the base 11, the bearing seat 5 is used for fixing the first bearing 7, and the first baffle 2, the, the number of the second screws is four, the four second screws are respectively arranged at four corners of the first baffle 2, the fixed seat 4 and the bearing seat 5 are locked through third screws, the number of the third screws is four, and the bearing seat 5 and the right end face of the base 11 are locked through four fourth screws; a second baffle 12 is arranged on the left end face of the base 11, the second baffle 12 and the left end face of the base 11 are locked through four fifth screws, the push rod 9 penetrates through the second baffle 12 and then is connected with a joint, and a second bearing 18 is arranged between the second baffle 2 and the push rod 9.
In order to improve the application range, in the embodiment, the sliding groove 111 is in clearance fit with the sliding rail 10, and the sliding rail 10 is conveniently inserted into the sliding groove 111 through the clearance fit, so that the installation time is saved; the sliding groove 111 is a V-shaped groove, and the unique design of the embedded guide rail is that the matching contact surface of the guide rail and the guide rail groove of the section bar is V-shaped, so that the guide rail has a self-positioning function under the condition that the guide rail bar is stressed by extrusion, and the embedded guide rail in the base does not need to be riveted and fixed after being installed.
In order to improve pivoted efficiency and life, first bearing 7 is total two in this embodiment, two first bearings 7 set up side by side, wherein be equipped with lock nut on the first bearing 7 of right-hand member, the car has the helicitic texture on lock nut's the outer wall, but through helicitic texture screw in bearing frame 5 internal compression bearing outer lane, thereby it is fixed with first bearing 7, two first bearings 7 are deep groove ball bearing or the angular contact ball bearing of the same structure, second bearing 18 is oil-free bearing, deep groove ball bearing is preferred for use to first bearing 7 in this embodiment.
In order to improve the running stability, in the embodiment, the unilateral gap between the inner walls of the screw rod 8 and the push rod 9 is more than or equal to 1mm and less than or equal to 3mm, wherein the unilateral gap is most preferably 2 mm.
In order to improve the working efficiency, the motor 1 is a stepping motor, a servo motor or a brushless dc motor in the present embodiment, and an encoder is provided on the motor 1, and the servo motor is preferably used in the present embodiment.
Further, in order to improve the running stability, in the embodiment, the number of the reversers 15 is four, two reversers 15 are arranged on the sliding block 13 in a group, a group of opposite angles is arranged between every two reversers 15 in the same group, a circulation channel is arranged between every two reversers 15 in the same group, each reverser 15 is provided with a stop block 151, and the stop blocks 151 are slidably matched on the sliding rail 10.
The utility model discloses embedded lead screw drive push rod device of guide rail mainly has following several benefits: 1. the design of the unique embedded guide rail is that the matching contact surface of the guide rail and the guide rail groove of the section bar is V-shaped, so that the guide rail has a self-positioning function under the condition that the guide rail bar is stressed by extrusion, and the embedded guide rail in the base does not need to be riveted and fixed after being installed; 2. the guide rail is completely machined before being embedded: the guide rail does not need to be processed after being embedded, so that the processing difficulty of the product is greatly simplified; 3. the overall design of the base profile: the scheme has simple assembly and processing and few assembly parts; the product has good integral rigidity, symmetrical appearance and isotropic stress; and no matter the stroke length of the product, the processing and assembling difficulty is similar, and the consistency of the product in use is good.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the technical principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. The utility model provides an embedded lead screw drive pusher gear of guide rail which characterized in that: the device comprises a base (11), wherein the base (11) is a cavity with openings at the left end and the right end, a sliding groove (111) is arranged in the cavity, and a sliding rail (10) is arranged on the sliding groove (111); a push rod (9) is arranged in the cavity, a slide block (13) is connected to the right end of the push rod (9), the slide block (13) is matched with the cavity, reversers (15) are arranged at the left end and the right end of the slide block (13), a circulating channel is arranged between the reversers (15), steel balls (14) are arranged in the circulating channel, and the steel balls (14) are matched with the slide rail (10); the novel bearing seat is characterized in that a screw rod nut (17) is arranged in the sliding block (13), the sliding block (13) and the screw rod nut (17) are locked through a first screw (16), a screw rod (8) is connected onto the screw rod nut (17), the screw rod (8) penetrates through the sliding block (13) rightwards and extends into the push rod (9), a gap is formed between the screw rod (8) and the inner wall of the push rod (9), a coupler (6) is connected after the screw rod (8) penetrates through a first bearing (7) leftwards, the other end of the coupler (6) is connected with a motor (1), a fixing seat (4) is arranged on the outer side of the coupler (6), a mounting seat (3) is arranged on the outer side of the motor (1), a first baffle (2) is arranged at the right end of the mounting seat (3), a bearing seat (5) is arranged between the fixing seat (4) and, the bearing seat (5) is used for fixing the first bearing (7); the left end of base (11) is equipped with second baffle (12), push rod (9) run through be connected with the joint behind second baffle (12), second baffle (12) with be equipped with second bearing (18) between push rod (9).
2. The rail-in-line lead screw drive ram apparatus of claim 1, wherein: the sliding groove (111) is in clearance fit with the sliding rail (10).
3. The rail-in-line lead screw drive ram apparatus of claim 2, wherein: the sliding groove (111) is a V-shaped groove.
4. The rail-in-line lead screw drive ram apparatus of claim 1, wherein: the number of the first bearings (7) is two, and locking nuts are arranged on the first bearings (7) at the right end.
5. The rail-in-line lead screw drive ram apparatus of claim 4, wherein: the first bearing (7) is a deep groove ball bearing or an angular contact ball bearing.
6. The rail-in-line lead screw drive ram apparatus of claim 1, wherein: the second bearing (18) is an oilless bearing.
7. The rail-in-line lead screw drive ram apparatus of claim 1, wherein: and a unilateral gap between the screw rod (8) and the inner wall of the push rod (9) is more than or equal to 1mm and less than or equal to 3 mm.
8. The rail-in-line lead screw drive ram apparatus of claim 1, wherein: the motor (1) is a stepping motor, a servo motor or a brushless direct current motor, and an encoder is arranged on the motor (1).
9. The rail-in-line lead screw drive ram apparatus of claim 1, wherein: the number of the reversers (15) is four, every two of the four reversers (15) are arranged on the sliding block (13) in a group in a diagonal manner, and one circulation channel is arranged between the two reversers (15) in the same group.
10. The rail-in-line lead screw drive ram apparatus of claim 9, wherein: each reverser (15) is provided with a stop block (151), and the stop blocks (151) are arranged on the sliding rails (10) in a sliding mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920517312.8U CN210339318U (en) | 2019-04-16 | 2019-04-16 | Lead screw driving push rod device with embedded guide rail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920517312.8U CN210339318U (en) | 2019-04-16 | 2019-04-16 | Lead screw driving push rod device with embedded guide rail |
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| Publication Number | Publication Date |
|---|---|
| CN210339318U true CN210339318U (en) | 2020-04-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920517312.8U Active CN210339318U (en) | 2019-04-16 | 2019-04-16 | Lead screw driving push rod device with embedded guide rail |
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| CN (1) | CN210339318U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110104389A (en) * | 2019-04-16 | 2019-08-09 | 宁波川拓自动化科技有限公司 | A kind of embedded lead screw driving push rod device of guide rail |
-
2019
- 2019-04-16 CN CN201920517312.8U patent/CN210339318U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110104389A (en) * | 2019-04-16 | 2019-08-09 | 宁波川拓自动化科技有限公司 | A kind of embedded lead screw driving push rod device of guide rail |
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