CN215146442U - Automatic feeding system of worm assembly - Google Patents
Automatic feeding system of worm assembly Download PDFInfo
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- CN215146442U CN215146442U CN202120138679.6U CN202120138679U CN215146442U CN 215146442 U CN215146442 U CN 215146442U CN 202120138679 U CN202120138679 U CN 202120138679U CN 215146442 U CN215146442 U CN 215146442U
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- material taking
- clamping jaw
- worm assembly
- servo
- support bearing
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Abstract
The utility model discloses an automatic feeding system of worm assembly, including transport mechanism, feeding agencies, pressure equipment press, PLC, feeding agencies gets the servo axle of the translation of material clamping jaw left and right sides translation and be used for detecting including getting material clamping jaw, drive and getting the rotatory servo axle of material clamping jaw, drive and getting the material clamping jaw lift the vision camera of the support bearing location bump of worm assembly is equipped with a pair of contact telescopic probe on getting the material clamping jaw, the support bearing location bump both sides of worm assembly still are equipped with and supply probe male slot. The utility model discloses a vision camera detects support bearing location bump and controls the angle of getting the material clamping jaw to fix a position once more to support bearing through the contact retractable probe who gets the material clamping jaw, realize closed-loop control, with the accuracy that improves the location.
Description
Technical Field
The utility model relates to a motor steering gear assembly technique especially relates to an automatic feeding system of worm assembly.
Background
The assembly process of the worm assembly of the servo unit of the automobile steering gear comprises the following steps:
after the servo housing is preassembled, the gearbox assembly is required. The first step in the assembly of the gearbox is the installation of the worm assembly. Referring to fig. 1, the assembly relationship between the worm assembly 1 and the servo housing 2 is relatively simple, that is, the support bearing 3 of the worm assembly 1 is required to be installed into the servo housing 2 at a predetermined angle and to reach a predetermined position.
The step of assembling the worm assembly to the servo housing is carried out in an assembly line by press-fitting the worm assembly to the servo housing by a machine tool using a servo press. The bracket bearing of the worm assembly is as shown in fig. 2, and the lower plane of the bracket bearing 3 is provided with a convex point 4, so that the purpose is to match the groove 5 in the shell 2 in fig. 3 after the worm assembly 1 is pressed and mounted, and the problem that the worm assembly 1 rotates to cause unqualified screwing when the adjusting nut is screwed at a subsequent station is avoided. Therefore, before the worm assembly 1 is pressed, the machine tool needs to perform secondary positioning on the bracket bearing 3 of the worm assembly 1.
In order to ensure the secondary positioning of the machine tool on the support bearing, the traditional worm assembly feeding mode (loading a pressure head is a feeding process) is that firstly, an operator manually feeds the worm assembly onto the pressure head 7 of the press-mounting press 6; and then the worm assembly is rotated by the stepping motor 8, the positioning salient points on the support bearing are detected by the sensor, and after the sensor detects the salient points, the stepping motor 8 stops rotating to position the angle of the support bearing, as shown in figure 4.
However, because the positioning mode is semi-closed loop control, the risk of positioning failure exists, and if the positioning failure occurs, the worm is damaged in the process of press mounting.
SUMMERY OF THE UTILITY MODEL
In order to solve the above problems in the prior art, the utility model provides an automatic feeding system of worm assembly can realize the automatic feeding of worm assembly to effective location.
The utility model discloses an automatic feeding system of worm assembly, include:
the conveying mechanism comprises a lower material taking circulating conveying belt, a material taking circulating conveying belt and a plurality of trays which run on the conveying belt and are used for bearing the worm assembly;
the material taking mechanism is arranged at a material taking position on one side of the conveying mechanism and comprises a material taking clamping jaw, a rotary servo shaft for driving the material taking clamping jaw to rotate, a lifting servo shaft for driving the material taking clamping jaw to lift, a translation servo shaft for driving the material taking clamping jaw to translate left and right and a vision camera for detecting a support bearing positioning salient point of the worm assembly, wherein a pair of contact type telescopic probes is arranged on the material taking clamping jaw;
the press-fitting press is arranged on one side of the material taking mechanism and comprises a magnetic pressure head, and a positioning pin is arranged on the lower end face of the pressure head;
the PLC is electrically connected with the conveying mechanism, the material taking mechanism and the press-fitting press respectively;
and slots for inserting probes are further formed in two sides of the support bearing positioning salient points of the worm assembly, and positioning holes matched with the positioning pins are further formed in the upper end face of the support bearing.
The material taking mechanism further comprises a transfer mechanism electrically connected with the PLC, and the transfer mechanism comprises a transfer clamp connected with the material taking clamping jaw through a worm assembly and a transfer servo shaft driving the transfer clamp to horizontally move left and right.
Get the concrete mounting structure of material clamping jaw for locating rotatory servo axle lower extreme, on the servo axle of lift was located to rotatory servo axle, on the servo axle of translation was located to the servo axle of lift, translation servo axle and transfer servo axle were located on the same support.
The positioning hole is positioned right above the bracket bearing positioning salient point.
Use the utility model discloses an automatic feeding system of worm assembly has obtained following beneficial effect:
1. the angle of the material taking clamping jaw is controlled by detecting the positioning salient point of the support bearing through the vision camera, the support bearing is positioned again through the contact type telescopic probe of the material taking clamping jaw, closed-loop control is achieved, and the positioning accuracy is improved.
2. The positioning accuracy is further improved through the third positioning of the positioning pin of the pressure head and the positioning hole of the support bearing.
3. The whole feeding process is full-automatic and high in intelligent degree, the risk of positioning failure can be effectively eliminated, and the defect that the worm is damaged in the process of press fitting due to positioning errors is avoided.
Drawings
FIG. 1 is a schematic illustration of the press-fit principle of a prior art worm assembly;
FIG. 2 is a schematic view of a bracket bearing locating bump of a prior art worm assembly;
FIG. 3 is a schematic illustration of a prior art servo housing inner recess;
fig. 4 is a partial cross-sectional view of a press-fitting press of the prior art;
fig. 5 is a schematic structural view of the conveying mechanism of the present invention;
fig. 6 is a schematic structural view of the material taking mechanism of the present invention;
fig. 7 is a schematic structural view of a material taking clamping jaw of the present invention;
fig. 8 is a schematic view of a partial structure of the press-fitting press of the present invention;
fig. 9 is a schematic structural view of a positioning pin of the indenter of the present invention;
fig. 10 is a schematic structural view of a support bearing of the worm assembly of the present invention;
fig. 11 is the inserted schematic diagram of the probe of the material-taking clamping jaw and the slot of the bracket bearing in cooperation.
Detailed Description
The automatic feeding system of the worm assembly of the present invention is further described with reference to the accompanying drawings and embodiments.
The utility model discloses an automatic feeding system of worm assembly mainly includes:
the conveying mechanism shown in fig. 5 comprises a lower material taking circulating conveyor belt 10 and a plurality of trays 11 running on the conveyor belt and used for carrying worm assemblies 1, wherein each tray 11 can be loaded with one worm assembly 1 automatically fed to the tray from the previous process, and is conveyed to a material taking position on one side through the lower material taking circulating conveyor belt 10 and then returned to a feeding position on the other side.
As shown in fig. 6, the material taking mechanism is arranged at the material taking position on one side of the conveying mechanism, and includes a material taking clamping jaw 20, a rotating servo shaft 21 for driving the material taking clamping jaw 20 to rotate, a lifting servo shaft 22 for driving the material taking clamping jaw 20 to lift, a translation servo shaft 23 for driving the material taking clamping jaw 20 to translate left and right, and a vision camera 24 for detecting the bracket bearing positioning salient point 4 of the worm assembly 1, as shown in fig. 7, a pair of contact type telescopic probes 25 is arranged on the material taking clamping jaw 20, and the material taking clamping jaw 20 can vertically grab the worm assembly 1 from above the tray 11 under the control of a clamping cylinder 26.
As shown in fig. 8, the press-fitting press 30 is disposed on one side of the material taking mechanism, the press-fitting press 30 includes a magnetic press head 31, and a positioning pin 32 is disposed on a lower end surface of the press head 31 and is located right above the bracket bearing positioning salient point 4.
And the PLC (not shown in the figure) is respectively and electrically connected with the conveying mechanism, the material taking mechanism and the press-fitting press 30 and is used for intelligently controlling the actions of all the mechanisms.
As shown in fig. 9 to 11, slots 43 for inserting the probes 25 are further provided on two sides of the support bearing positioning bumps 4 of the worm assembly 1, and a positioning hole 42 matched with the positioning pin 32 is further provided on the upper end surface of the support bearing 3.
As an embodiment, since the upper end surface of the worm assembly 1 clamped by the material taking clamping jaw 20 of the material taking mechanism is consistent with the positioning surface required by press mounting of the press, in order to make the worm assembly 1 smoothly transit to the press head 31, the material taking mechanism further comprises a transfer mechanism electrically connected with the PLC, and the transfer mechanism comprises a transfer clamp 40 connected with the material taking clamping jaw 20 through the worm assembly 1 and a transfer servo shaft 41 driving the transfer clamp 40 to translate left and right, wherein the transfer clamp 40 horizontally clamps the worm assembly 1, exposes the upper end surface thereof and transfers the worm assembly to the position of the press head 31 through the transfer servo shaft 41 for feeding.
Get material clamping jaw 20's concrete mounting structure is for locating rotatory servo axle 21 lower extreme, and rotatory servo axle 21 is located on the servo axle 22 of lift, and servo axle 22 of lift is located translation servo axle 23, and translation servo axle 23 and transfer servo axle are located on the same support.
The utility model discloses an automatic feeding system of worm assembly, its concrete implementation process as follows:
a. the worm assemblies 1 automatically discharged to the tray 11 from the previous process are sequentially conveyed to a material taking position through a belt of a conveying mechanism;
c. the lifting servo shaft 22 moves to a material taking position, the support bearing 3 is positioned again through the contact type telescopic probe 25 of the material taking clamping jaw 20, if the contact type telescopic probe 25 is inserted into the slot 43, the positioning is accurate, the material is taken by the material taking clamping jaw 20 (see fig. 11), and the empty tray 11 returns to the discharging side; if not, the lifting servo shaft 22 is used for controlling to return to the original point position, and the step b is returned to, and the detection and the positioning are carried out again;
d. the material taking clamping jaw 20 is driven by the translation servo shaft 23 to translate the worm assembly 1 to the transfer mechanism, the worm assembly is clamped by the transfer clamp 40 and then is conveyed to a position below a pressure head 31 of the press-fitting press 30, the worm assembly 1 is magnetically attracted by the pressure head 31, the material loading is completed, and the next press-fitting process is carried out.
In the step d, when the pressure head 31 magnetically attracts the worm assembly 1, if the positioning pin 32 of the pressure head 31 corresponds to and is in butt joint with the positioning hole of the bracket bearing 3, magnetic attraction can be achieved; if the tray is not butted, the distance between the pressure head 31 and the worm assembly 1 is larger than the magnetic attraction required distance, the worm assembly 1 falls off, and the feeding of the worm assembly 1 of the next tray 11 is continued.
However, those skilled in the art should realize that the above embodiments are only used for illustrating the present invention and not used as a limitation of the present invention, and that the changes and modifications to the above embodiments are within the scope of the appended claims as long as they are within the true spirit of the present invention.
Claims (4)
1. An automatic feeding system of worm assembly characterized in that includes:
the conveying mechanism comprises a lower material taking circulating conveying belt, a material taking circulating conveying belt and a plurality of trays which run on the conveying belt and are used for bearing the worm assembly;
the material taking mechanism is arranged at a material taking position on one side of the conveying mechanism and comprises a material taking clamping jaw, a rotary servo shaft for driving the material taking clamping jaw to rotate, a lifting servo shaft for driving the material taking clamping jaw to lift, a translation servo shaft for driving the material taking clamping jaw to translate left and right and a vision camera for detecting a support bearing positioning salient point of the worm assembly, wherein a pair of contact type telescopic probes is arranged on the material taking clamping jaw;
the press-fitting press is arranged on one side of the material taking mechanism and comprises a magnetic pressure head, and a positioning pin is arranged on the lower end face of the pressure head;
the PLC is electrically connected with the conveying mechanism, the material taking mechanism and the press-fitting press respectively;
and slots for inserting probes are further formed in two sides of the support bearing positioning salient points of the worm assembly, and positioning holes matched with the positioning pins are further formed in the upper end face of the support bearing.
2. The automatic feeding system of a worm assembly as claimed in claim 1, characterized in that: the material taking mechanism further comprises a transfer mechanism electrically connected with the PLC, and the transfer mechanism comprises a transfer clamp connected with the material taking clamping jaw through a worm assembly and a transfer servo shaft driving the transfer clamp to horizontally move left and right.
3. An automatic loading system for a worm assembly as claimed in claim 2, wherein: get the material clamping jaw and locate rotatory servo axle lower extreme, rotatory servo axle is located on the servo axle of lift, and the servo axle of lift is located translation servo epaxially, and translation servo axle and transfer servo axle are located on the same support.
4. The automatic feeding system of a worm assembly as claimed in claim 1, characterized in that: the positioning hole is positioned right above the bracket bearing positioning salient point.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120138679.6U CN215146442U (en) | 2021-01-19 | 2021-01-19 | Automatic feeding system of worm assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120138679.6U CN215146442U (en) | 2021-01-19 | 2021-01-19 | Automatic feeding system of worm assembly |
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| Publication Number | Publication Date |
|---|---|
| CN215146442U true CN215146442U (en) | 2021-12-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120138679.6U Active CN215146442U (en) | 2021-01-19 | 2021-01-19 | Automatic feeding system of worm assembly |
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| CN (1) | CN215146442U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114515946A (en) * | 2022-02-21 | 2022-05-20 | 东风柳州汽车有限公司 | Worm press-fitting system |
| CN114799809A (en) * | 2021-01-19 | 2022-07-29 | 博世华域转向系统有限公司 | Automatic feeding system and method for small worm assembly |
-
2021
- 2021-01-19 CN CN202120138679.6U patent/CN215146442U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114799809A (en) * | 2021-01-19 | 2022-07-29 | 博世华域转向系统有限公司 | Automatic feeding system and method for small worm assembly |
| CN114515946A (en) * | 2022-02-21 | 2022-05-20 | 东风柳州汽车有限公司 | Worm press-fitting system |
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