CN214979118U - Device for pre-tightening motor end cover baffle plate screw - Google Patents
Device for pre-tightening motor end cover baffle plate screw Download PDFInfo
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- CN214979118U CN214979118U CN202120741265.2U CN202120741265U CN214979118U CN 214979118 U CN214979118 U CN 214979118U CN 202120741265 U CN202120741265 U CN 202120741265U CN 214979118 U CN214979118 U CN 214979118U
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Abstract
The utility model aims to solve the technical problem that a device for pretension of motor end cover baffle screw is provided to improve the assembly efficiency of end cover baffle, relate to processing assembly machinery technical field. The utility model provides a device for pretension of motor end cover baffle screw, includes mounting bracket, four-axis robotic arm, screw tightening device, clamping device, criticizes head, baffle fixed block and end cover fixed block, four-axis robotic arm's one end is installed on the mounting bracket, the other end is equipped with the installation piece, clamping device includes that linear drive device and two set up relatively and lie in the grip block of installation piece below, two be equipped with the connecting block between the grip block, linear drive device installs on the installation piece, and with the connecting block is connected, the grip block with be equipped with between the connecting block and be used for stimulateeing the gliding connecting rod of grip block, criticize the head setting two between the grip block. The utility model discloses reduce latency, improved assembly efficiency.
Description
Technical Field
The utility model relates to a processing assembly machine tool technical field, specificly relate to a device that is used for pretension of motor end cover baffle screw.
Background
Bolted connections are a common connection between many parts. And the conventional method of locking the screw in the traditional production process is manual locking, the labor intensity is very high, the screw is not easy to screw, the respective screwing degrees of a plurality of screws are irregular in the incomplete time and easy to damage, and the service life of parts is easily shortened. In order to solve the above problems, some screw assembling devices have appeared, and the existing screw assembling devices generally do not have a grabbing function and need to align parts manually.
In the assembly process of the baffle of the motor end cover, because the inner diameter of the motor end cover is small, a hand is difficult to enter the end cover, if the baffle is manually placed, the efficiency is low, and the baffle can be difficult to be accurately aligned with the motor end cover. In order to solve the above problem, a conventional method is to provide a four-axis robot arm and a clamping device on a screw assembling device, where the clamping device is installed at the front end of the four-axis robot arm, and the alignment accuracy is ensured by the four-axis robot arm. However, when the screw assembling device is used for assembling screws, a workpiece to be assembled is placed on another workpiece to be assembled through the four-axis mechanical arm and the clamping device, and then the four-axis mechanical arm needs to be moved away, so that the screw assembling device can be deeply inserted into the screw tightening device, and the assembling efficiency is low.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a device for pretension of motor end cover baffle screw is provided to improve the assembly efficiency of end cover baffle.
The utility model provides a technical scheme that its technical problem adopted is: a device for pre-tightening a baffle screw of a motor end cover comprises a mounting frame, a four-axis mechanical arm, a screw tightening device, a clamping device, a screwdriver bit, a baffle fixing block and an end cover fixing block, wherein one end of the four-axis mechanical arm is mounted on the mounting frame, and the other end of the four-axis mechanical arm is provided with a mounting block;
the clamping device comprises a linear driving device and two clamping blocks which are oppositely arranged and positioned below the mounting block, the two clamping blocks are respectively connected with the mounting block in a sliding mode, the two clamping blocks can slide oppositely, a connecting block is arranged between the two clamping blocks, the linear driving device is mounted on the mounting block and connected with the connecting block so as to drive the connecting block to move up and down, a connecting rod used for pulling the clamping blocks to slide is arranged between the clamping blocks and the connecting block, one end of the connecting rod is hinged to the clamping blocks, and the other end of the connecting rod is hinged to the connecting block;
the screwdriver head is arranged between the two clamping blocks, and the screw tightening device is arranged on the mounting block and is in transmission connection with the upper end of the screwdriver head;
the mounting block is provided with a discharging rod below, the discharging rod is connected with the mounting block in a vertical sliding mode, and an elastic piece for discharging is arranged between the discharging rod and the mounting block.
Further, the elastic member is a spring.
Further, the height of the clamping part is higher than that of the lower end of the discharging rod and is matched with that of the lower end of the batch head.
Further, the guide rail of vertical setting is installed to four-axis robotic arm's installation piece end, the installation piece with guide rail sliding fit, the cover is equipped with the messenger on the guide rail installation piece gliding compression spring downwards.
Further, the linear driving device is an air cylinder.
Furthermore, the upper surface of the baffle fixed block is provided with a first boss matched with the central hole of the baffle, and the side surface of the baffle fixed block is provided with a second boss.
Furthermore, the end cover fixing block is provided with a clamping groove matched with the end cover, and the end cover fixing block is further provided with a positioning pin matched with the end cover.
The utility model has the advantages that: the utility model discloses all set up clamping device and screw tightening device on the installation piece of being connected with four-axis robotic arm to will criticize the head and set up between two grip blocks, need not take out clamping device in assembling process and can realize the screw assembly, reduced latency, improved assembly efficiency.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is an enlarged schematic view at A in FIG. 1;
FIG. 3 is a rear view of FIG. 1;
FIG. 4 is an enlarged schematic view at B in FIG. 3;
FIG. 5 is an enlarged schematic view at C in FIG. 1;
FIG. 6 is a schematic view of the structure of the baffle;
FIG. 7 is a schematic structural view of a baffle fixing block;
FIG. 8 is a schematic structural view of an end cap retaining block;
shown in the figure: the device comprises a mounting frame 1, a four-axis mechanical arm 2, a screw tightening device 4, a baffle 5, screws 6, a baffle fixing block 7, an end cover fixing block 8, an end cover 9, a mounting block 12, a discharging rod 13, a guide rail 14, a compression spring 15, a discharging spring 17, a vertical guide rod 18, a linear driving device 31, a connecting rod 32, a connecting rod 33, a connecting block 34, a batch head 35, a horizontal guide rail 36, a fixing block 37, a baffle central hole 51, a baffle positioning groove 52, a first boss 71, a second boss 72 and a clamping part 321.
Detailed Description
The present invention will be further explained with reference to the drawings and examples.
As shown in fig. 1 to 5, the device for pre-tightening the motor end cover baffle plate screws comprises a mounting frame 1, a four-axis mechanical arm 2, a screw tightening device 4, a clamping device, a screwdriver head 35, a baffle fixing block 7 and an end cover fixing block 8, wherein the baffle fixing block 7 and the end cover fixing block 8 are both arranged below the four-axis mechanical arm 2. Four-axis robotic arm 2's one end is installed on the mounting bracket 1, the other end is equipped with installation piece 12. The clamping device comprises a linear driving device 31 and two clamping blocks 321 which are oppositely arranged and located below the mounting block 12, the two clamping blocks 321 are respectively connected with the mounting block 12 in a sliding mode, the two clamping blocks 321 can slide oppositely, a connecting block 34 is arranged between the two clamping blocks 32, the linear driving device 31 is mounted on the mounting block 12 and connected with the connecting block 34 to drive the connecting block 34 to move up and down, a connecting rod 33 used for pulling the clamping blocks to slide is arranged between the clamping blocks 321 and the connecting block 34, one end of the connecting rod 33 is hinged to the clamping blocks 32, and the other end of the connecting rod 33 is hinged to the connecting block 34; the screwdriver head 35 is arranged between the two clamping blocks 321, and the screw tightening device 4 is arranged on the mounting block 12 and is in transmission connection with the upper end of the screwdriver head 35; the lower part of the mounting block 12 is provided with a discharging rod 13, the discharging rod 13 is sleeved on a vertical guide rod 18 arranged on the mounting block 12, so that the discharging rod 13 can be discharged only by extending out of the vertical guide rod 18 through the vertical guide rod 18 and the mounting block 12 which are connected in a vertically sliding manner. An elastic member 17 for discharging is arranged between the discharging rod 13 and the mounting block 12.
The elastic member 17 may be rubber, and in the embodiment of the present invention, the elastic member 17 is a spring.
The two clamping blocks 321 are respectively connected with the mounting block 12 in a sliding manner, and the two clamping blocks 321 can slide oppositely, specifically, the following manner is implemented: each clamping block 321 is provided with a connecting rod 32, the mounting block 12 is provided with a horizontal guide rail 36, and the connecting rod 32 of each clamping block 321 is in sliding fit with the horizontal guide rail 36. In the figure: the horizontal guide rail 36 is fixedly connected with the mounting block 12 through a fixing block 37 below the mounting block 12, and the clamping block 321 and the connecting rod 32 are integrated.
When the device is used, the four-axis mechanical arm 2 moves to drive the mounting block 12 to move, when the mounting block moves to the position of the baffle fixing block 7, the linear driving device 31 acts to pull the connecting block 34 to move upwards, and the clamping blocks 321 can slide oppositely by the inclined horizontal component force of the connecting rod 33, so that the baffle is closed and clamped. After the baffle is clamped, the four-axis mechanical arm 2 moves to the position of the end cover fixing block 8, the linear driving device 31 moves downwards, and the horizontal component force of the connecting rod 33 enables the clamping block 321 to slide outwards, so that the baffle is released. Of course, the clamping can also be realized by the action of the linear driving device 31 to push the connecting block 34 to move downwards. After the baffle is loosened, the four-axis mechanical arm 2 continues to move downwards to enable the discharging rod 13 to press the baffle, the screw tightening device 4 drives the screwdriver head 35 to rotate, the four-axis mechanical arm 2 continues to move downwards until the screw is completely screwed into the workpiece and stops, and the screw assembly is completed. The utility model discloses a two grip blocks pass through connecting block 34 by sharp drive arrangement 31 synchronous drive, can guarantee baffle centre gripping backplate and criticize the relative relation of first, can improve screw assembly quality. The utility model discloses all set up clamping device and screw tightening device on the installation piece 11 of being connected with four-axis robotic arm 2 to will criticize first 35 and set up between two grip blocks, so, need not take out clamping device in assembling process and can realize the screw assembly, reduced latency, improved assembly efficiency.
The height of the holding block 321 may be higher than the height of the lower end of the discharge rod 13 or lower than the height of the lower end of the discharge rod 13. If be less than stripper lower extreme height, need loosen the baffle earlier in the screw assembly process, just can realize the screw assembly, this also can influence assembly efficiency to a certain extent, and still need have the space of stepping down that lets grip block 321 move down in the end cover. In order to solve the above problem, it is preferable that the clamping block 321 has a height higher than that of the lower end of the discharge bar 13 and is adapted to the height of the lower end of the batch head 35. The height of the clamping block 321 is matched with the height of the lower end of the batch head 35, namely: when the holding block 321 holds the part 5, the lower end of the bit 35 just can contact the screw 6 on the baffle 5 (see fig. 5). So, four-axis robotic arm control installation piece 12 downstream can realize the screw assembly when the assembly, need not loosen the baffle earlier in the assembling process, and when grip block 321 centre gripping baffle, discharge arm 13 also can press on the baffle, does not crooked when guaranteeing the baffle centre gripping.
The linear driving device 31 can be an electric screw rod, an air cylinder or a hydraulic cylinder, and the embodiment of the present invention provides that the linear driving device 31 is an air cylinder.
In the screw tightening process, if the downward movement stroke of the four-axis mechanical arm 2 is too large, the baffle is easily damaged by the screwdriver head. In order to solve the problem, the utility model discloses the guide rail 14 of vertical setting is installed to well four-axis robotic arm 2's installation piece end (the one end that sets up the installation piece), installation piece 12 and guide rail 14 sliding fit, and the cover is equipped with and makes installation piece 12 gliding compression spring 15 downwards on the guide rail 14. So, when four-axis robotic arm 2 moved down the stroke when too big the installation piece atress can the grow, can compress compression spring and move up to prevent to damage the baffle. It will be appreciated that the compression spring 15 should be located above the mounting block 12. In some embodiments the compression spring 15 may also be provided in the form of a tension spring, which, when provided, should be provided below the mounting block 1.
As shown in fig. 6 and 7, in order to facilitate positioning of the baffle, in a preferred embodiment, a first boss 71 adapted to the baffle central hole 51 is disposed on an upper surface of the baffle fixing block 7, and a second boss 72 is disposed on a side surface of the baffle fixing block 7. The second boss 72 engages the baffle positioning slot 52 to prevent rotation of the baffle 5.
As shown in fig. 8, in order to fix the end cap, in a preferred embodiment, a locking groove 81 adapted to the end cap 9 is provided on the end cap fixing block 8, and a positioning pin 82 engaged with the end cap 9 is further provided on the end cap fixing block 8. The positioning pin 82 functions to prevent the end cap 9 from rotating within the locking groove 81.
Claims (7)
1. The utility model provides a device for pretension of motor end cover baffle screw, includes mounting bracket (1), four-axis robotic arm (2), screw tightening device (4), clamping device, criticizes first (35), baffle fixed block (7) and end cover fixed block (8), its characterized in that: one end of the four-axis mechanical arm (2) is mounted on the mounting frame (1), and the other end of the four-axis mechanical arm is provided with a mounting block (12);
the clamping device comprises a linear driving device (31) and two clamping blocks (321) which are oppositely arranged and located below the mounting block (12), the two clamping blocks (321) are respectively connected with the mounting block (12) in a sliding mode, the two clamping blocks (321) can slide in opposite directions, a connecting block (34) is arranged between the two clamping blocks (321), the linear driving device (31) is mounted on the mounting block (12) and connected with the connecting block (34) to drive the connecting block (34) to move up and down, a connecting rod (33) used for pulling the clamping blocks to slide is arranged between the clamping blocks (321) and the connecting block (34), one end of the connecting rod (33) is hinged to the clamping blocks (321), and the other end of the connecting rod is hinged to the connecting block (34);
the screwdriver head (35) is arranged between the two clamping blocks (321), and the screw tightening device (4) is arranged on the mounting block (12) and is in transmission connection with the upper end of the screwdriver head (35);
the mounting block (12) is provided with a discharging rod (13) below, the discharging rod (13) is connected with the mounting block (12) in a vertical sliding mode, and an elastic part (17) for discharging is arranged between the discharging rod (13) and the mounting block (12).
2. The device for pre-tightening the motor end cover baffle plate screw as claimed in claim 1, wherein: the elastic piece (17) is a spring.
3. The device for pre-tightening the motor end cover baffle plate screw as claimed in claim 1, wherein: the clamping block (321) is higher than the lower end of the discharging rod (13) in height and is matched with the lower end of the batch head (35) in height.
4. The device for pre-tightening the motor end cover baffle plate screw as claimed in claim 1, wherein: guide rail (14) of vertical setting are installed to the installation piece end of four-axis robotic arm (2), installation piece (12) with guide rail (14) sliding fit, the cover is equipped with the messenger on guide rail (14) installation piece (12) gliding compression spring (15) downwards.
5. The device for pre-tightening the motor end cover baffle plate screw as claimed in claim 1, wherein: the linear driving device (31) is an air cylinder.
6. The device for pre-tightening the motor end cover baffle plate screw as claimed in claim 1, wherein: the upper surface of baffle fixed block (7) is equipped with first boss (71) with the centre bore adaptation of baffle (5), the side of baffle fixed block (7) is equipped with second boss (72).
7. The device for pre-tightening the motor end cover baffle plate screw as claimed in claim 1, wherein: the end cover fixing block (8) is provided with a clamping groove (81) matched with the end cover (9), and the end cover fixing block (8) is further provided with a positioning pin (82) matched with the end cover (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120741265.2U CN214979118U (en) | 2021-04-12 | 2021-04-12 | Device for pre-tightening motor end cover baffle plate screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120741265.2U CN214979118U (en) | 2021-04-12 | 2021-04-12 | Device for pre-tightening motor end cover baffle plate screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214979118U true CN214979118U (en) | 2021-12-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120741265.2U Active CN214979118U (en) | 2021-04-12 | 2021-04-12 | Device for pre-tightening motor end cover baffle plate screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214979118U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114654215A (en) * | 2022-04-05 | 2022-06-24 | 徐州金茂源车业有限公司 | Device convenient to installation motor |
-
2021
- 2021-04-12 CN CN202120741265.2U patent/CN214979118U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114654215A (en) * | 2022-04-05 | 2022-06-24 | 徐州金茂源车业有限公司 | Device convenient to installation motor |
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