CN220313240U - Automatic positioning press-fitting mechanism for bearings at two ends - Google Patents
Automatic positioning press-fitting mechanism for bearings at two ends Download PDFInfo
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- CN220313240U CN220313240U CN202321616286.7U CN202321616286U CN220313240U CN 220313240 U CN220313240 U CN 220313240U CN 202321616286 U CN202321616286 U CN 202321616286U CN 220313240 U CN220313240 U CN 220313240U
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Abstract
The utility model discloses an automatic positioning and press-fitting mechanism for two-end bearings, which comprises an upper positioning assembly, a lower positioning assembly and an auxiliary assembly, wherein the upper positioning assembly comprises a floating plate, two bearing positioning sleeves and a plurality of linear bearings are arranged on the floating plate, the lower positioning assembly comprises a positioning bottom plate, a left positioning seat assembly, a right positioning assembly and a plurality of guide shaft supports are fixedly arranged on the positioning bottom plate, and the guide shaft supports correspond to the linear bearings.
Description
Technical Field
The utility model mainly relates to the field of press fitting, in particular to an automatic positioning press fitting mechanism for deep groove ball bearings at two ends.
Background
The existing bearing press-mounting mode is to put the bearing on a specially-made tool with holes, then hold the shaft part by hand, and then press-mount the shaft and the bearing by a manual press. The method cannot accurately position, is easy to skew during press fitting, and leads to the fact that the press fitting is not in place, so that the running smoothness of the machine is affected, the service lives of gears and bearings are further affected, and the machine is in fault. In addition, the manual press fitting is easy to produce operation errors such as slipping and deviation, and unnecessary personal injury is caused.
In summary, how to accurately, automatically and safely realize positioning and press fitting of the bearing becomes an important problem which needs to be solved currently.
Disclosure of Invention
The utility model relates to an automatic positioning and press-fitting mechanism for bearings at two ends, and aims to solve the defects of low positioning precision, low automation degree, easiness in personal injury and the like in the prior art.
In order to achieve the above purpose, the present utility model adopts the following technical scheme: according to one scheme of the utility model, the automatic positioning and press-fitting mechanism for the bearings at two ends comprises an upper positioning assembly, a lower positioning assembly and an auxiliary assembly, wherein the upper positioning assembly comprises a floating plate, two bearing positioning sleeves and a plurality of linear bearings are arranged on the floating plate, the bearing positioning sleeves are used for positioning the bearings to be press-fitted, the lower positioning assembly comprises a positioning bottom plate, a left positioning seat assembly, a right positioning seat assembly and a plurality of guide shaft supports are fixedly arranged on the positioning bottom plate, and the left positioning seat assembly and the right positioning seat assembly are respectively used for positioning a shaft to be press-fitted; the guide shaft supports correspond to the linear bearings, guide columns are fixedly arranged on each guide shaft support, each guide column is connected with the corresponding linear bearing in a sliding mode, and an air cylinder assembly is arranged at the middle position of the positioning bottom plate.
Further, the left positioning seat assembly comprises a left positioning seat, the left positioning seat is fixed on the positioning bottom plate, a cavity is formed in the left positioning seat, a press-fit supporting block is fixedly arranged in the cavity of the left positioning seat, a fixed positioning sleeve is fixedly arranged on the end face of the top of the press-fit supporting block, and a shaft to be press-fitted is inserted into the fixed positioning sleeve.
Further, right positioning seat subassembly include right positioning seat, right positioning seat is fixed in the locating bottom plate, is the cavity in, the cavity internal fixation of right positioning seat is provided with the pressure equipment back shaft, pressure equipment back shaft outer wall is provided with compression spring, the cavity inner wall sliding connection of right positioning seat has the floating locating sleeve, floating locating sleeve lower extreme cover is in pressure equipment back shaft and bottom surface and compression spring contact, waits the pressure equipment axle to insert in the floating locating sleeve.
Further, the top end face of the floating positioning sleeve is higher than the top end face of the right positioning seat.
Further, the cylinder assembly comprises a single-rod cylinder, a cylinder mounting plate is fixedly connected to the bottom of the single-rod cylinder, the cylinder mounting plate is fixedly connected with a positioning bottom plate, a floating joint is fixedly connected to the output end of the single-rod cylinder, a floating joint connecting block is fixedly connected to the floating joint, and the floating joint connecting block is fixedly connected with the bottom surface of the floating plate.
Furthermore, the left positioning seat assembly and the right positioning seat assembly are symmetrically distributed by taking the single-rod air cylinder as a central shaft.
Further, the auxiliary assembly comprises a right pressure head and a left pressure head which are controlled by a press, the outer diameters of the right pressure head and the left pressure head are smaller than the inner diameter of the middle hollow part of the bearing positioning sleeve, and circular grooves are formed in the end faces of the bottom ends of the right pressure head and the left pressure head.
Compared with the prior art, the utility model has the advantages and innovations that:
1. the utility model has high positioning precision, and is provided with an upper positioning device and a lower positioning device, a product or a semi-finished product is positioned through the lower positioning assembly, then the bearing is put into the upper positioning assembly, and then press mounting is carried out, so that the bearing is ensured to have positioning guide all the time in the press mounting process, and the press mounting precision is improved.
2. The automatic feeding and discharging device has the advantages that the automatic degree is high, manual operation can be liberated, feeding and discharging of products or semi-finished products can be completely finished through the mechanical arm, lifting of the upper positioning assembly is completely controlled through the air cylinder, manual assistance is not needed, and therefore automation and manpower liberation can be completely realized in the whole press mounting process.
3. The utility model positions and fixes the product shaft by arranging the positioning seat component, thereby avoiding poor press fitting precision and even press fitting failure caused by overturning during press fitting and ensuring that the press fitting is uniform in stress, safe and reliable.
Drawings
FIG. 1 is a front axial side view of an automatic positioning press-fitting mechanism for bearings at two ends of the utility model;
FIG. 2 is a half cross-sectional view of an automatic positioning press-fit mechanism for bearings at two ends according to the present utility model;
FIG. 3 is a rear axial side view of an automatic positioning press-fit mechanism for bearings at two ends of the present utility model;
FIG. 4 is an isometric view of a cylinder assembly of an automatic positioning press-fit mechanism for a two-end bearing of the present utility model;
FIG. 5 is an isometric view of a fixed positioning sleeve of an automatic positioning press-fit mechanism for bearings at two ends of the utility model;
FIG. 6 is an isometric view of a press-fit support block of an automatic positioning press-fit mechanism for bearings at both ends of the present utility model;
in the figure: 1. a floating plate; 2. a linear bearing; 3. a guide shaft; 4. a bearing positioning sleeve; 5. a product shaft; 6. product gear; 7. a guide shaft support; 8. positioning a bottom plate; 9. a left positioning seat assembly; 10. a cylinder assembly; 11. a right positioning seat assembly; 12. a bushing; 13. a bearing; 14. a right-side ram; 15. a left pressure head; 91. a left positioning seat; 92. pressing and installing a supporting block; 93. fixing the positioning sleeve; 94. a limiting pin; 101. a single rod cylinder; 102. a cylinder mounting plate; 103. a floating joint; 104. a floating joint connection block; 111. a right positioning seat; 112. pressing and installing a supporting shaft; 113. a compression spring; 114. and (5) floating the positioning sleeve.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all, of the present utility model; all other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The utility model aims at solving the prior art mentioned in the background art and providing an automatic positioning and press-fitting mechanism for two-end bearings, which comprises an upper positioning assembly, a lower positioning assembly and an auxiliary assembly, as shown in fig. 1-6, wherein the upper positioning assembly comprises a floating plate 1, two bearing positioning sleeves 4 and a plurality of linear bearings 2 are arranged on the floating plate 1, the lower positioning assembly comprises a positioning bottom plate 8, a left positioning seat assembly 9, a right positioning seat assembly 11 and a plurality of guide shaft supports 7 are fixedly arranged on the positioning bottom plate 8, the guide shaft supports 7 correspond to the linear bearings 2, a guide column 3 is fixedly arranged on each guide shaft support 7, each guide column 3 is in sliding connection with the corresponding linear bearing 2, a cylinder assembly 10 is arranged in the middle of the positioning bottom plate 8, and the top of the cylinder assembly 10 is connected with the floating plate 1 to drive the floating plate to move up and down. The left positioning seat assembly and the right positioning seat assembly are both used for positioning a product shaft to be pressed, and the bearing positioning sleeve can be C-shaped and used for positioning a bearing to be pressed.
The left positioning seat assembly 9 comprises a left positioning seat 91, the left positioning seat 91 is cylindrical, the bottom of the left positioning seat 91 is fixed on a positioning bottom plate, the inside of the left positioning seat is a cavity, a press-fit supporting block 92 is fixedly arranged in the cavity of the left positioning seat 91, a fixed positioning sleeve 93 is fixedly arranged on the end surface of the top of the press-fit supporting block 92, and as shown in fig. 5 and 6, the press-fit supporting block 92 and the fixed positioning sleeve 93 are mutually matched and fixed, so that a product shaft can be more stable and does not shake when the product shaft is arranged in the press-fit supporting block 92; in addition, as shown in fig. 2, the left positioning seat 91 may be not designed as a through hole, and the press-fit supporting block 92 is fixedly connected with the left positioning seat 91 by a bolt, so that the left positioning seat 91, the press-fit supporting block 92 and the fixed positioning sleeve 93 are fixedly connected into a whole. As shown in fig. 3, in order to prevent the relative rotation between the fixed positioning sleeve 93 and the left positioning seat 91, an axial limiting groove is formed in the left positioning seat, and a limiting pin is arranged on the fixed positioning sleeve and is clamped in the limiting groove of the left positioning seat, so that the fixed positioning sleeve 93 is more stable, and the reliability of positioning is increased.
The right positioning seat assembly 11 comprises a right positioning seat 111, the right positioning seat 111 is fixed on a positioning bottom plate, a cavity is formed in the right positioning seat 111, a press-fit supporting shaft 112 is fixedly arranged in the cavity of the right positioning seat 111, a compression spring 113 is arranged on the outer wall of the press-fit supporting shaft 112, a floating positioning sleeve 114 is slidably connected to the inner wall of the cavity of the right positioning seat 111, the lower end of the floating positioning sleeve 114 is sleeved on the press-fit supporting shaft 112, and the bottom surface of the floating positioning sleeve is in contact with the compression spring 113. Similarly, as shown in fig. 2 and 3, the right positioning seat 111 may be designed without a through hole, and the press-fit supporting shaft 112 may be fixedly connected with the right positioning seat 111 by a bolt. In order to prevent the relative rotation of the floating positioning sleeve 114 and the right positioning seat 111, an axial limiting groove is formed in the right positioning seat, and a limiting pin is arranged on the floating positioning sleeve and is clamped in the limiting groove of the right positioning seat, so that the floating positioning sleeve 114 is more stable, the positioning reliability is improved, and the limiting pin 94 limits the up-and-down floating travel of the floating positioning sleeve 114.
The top end face of the floating positioning sleeve 114 is higher than the top end face of the right positioning seat 111, so that when the floating plate 1 moves downwards, the lower end face of the shaft is always in contact with the press-fit supporting shaft 112, the gear is not in contact with the upper end face of the positioning seat 111, the end face of the shaft is subjected to pressure, the gear is not subjected to pressure, meanwhile, the compression spring arranged between the floating positioning sleeve and the press-fit supporting shaft is used for always keeping contact between the gear and the upper end face of the floating positioning sleeve under the action of the compression spring 113, the gear is not subjected to pressure when the bearing is assembled, and meanwhile, the support between the side face of the gear and the floating positioning sleeve is increased by the aid of the floating positioning sleeve 114, so that the problem that the part of the product shaft extending into the right positioning assembly occupies the whole product shaft, and is small in proportion, and is easy to topple, so that the press-fit precision is poor, and press-fit fails is solved.
The cylinder assembly 10 comprises a single-rod cylinder 101, a cylinder mounting plate 102 is fixedly connected to the bottom of the single-rod cylinder 101, the cylinder mounting plate 102 is fixedly connected with a positioning bottom plate 8, a floating joint 103 is fixedly connected to the output end of the single-rod cylinder 101, a floating joint connecting block 104 is fixedly connected to the floating joint 103, and the floating joint connecting block 104 is fixedly connected with the bottom surface of the floating plate 1.
According to an embodiment of the present utility model, the left positioning seat assembly 9 and the right positioning assembly 11 may be symmetrically distributed with the single rod cylinder 101 as a central axis.
The auxiliary assembly comprises a right side pressure head 14 and a left side pressure head 15, wherein the right side pressure head 14 and the left side pressure head 15 are respectively provided with a circular groove, the diameter of the circular groove corresponds to the diameter of a product shaft, the right side pressure head 14 and the left side pressure head 15 can be sleeved into the product shaft, and the right side pressure head 14 and the left side pressure head 15 are respectively and fixedly connected with a press to be pressed down by the press.
Specifically, when the device is in the initial state, the single-rod air cylinder 101 is in the extending state, the floating plate 1 is at the highest position, the product shaft 5 can be grabbed by using a manipulator and placed into the floating positioning sleeve 114 of the right positioning assembly 11, the product gear 6 arranged on the product shaft 5 is contacted with the upper end surface of the floating positioning sleeve 114, the product shaft 5 is sleeved with the grabbing bushing 13 by using the manipulator and placed at the position where the bearing is required to be installed, then the single-rod air cylinder 101 is controlled to shrink, so that the floating joint connecting block 104 moves downwards to drive the floating plate 1 to be lowered to the lowest position, and then the grabbing bearing 12 by using the manipulator is sleeved into the position of the product shaft 5 close to press mounting from top to bottom, at the moment, the bearing 12 is positioned in the middle space of the bearing positioning sleeve 4, as shown in fig. 2, only a small gap is reserved between the inner diameter peripheral surface of the bearing positioning sleeve 4 and the bearing 12, so that the bearing 12 can not shake horizontally during press mounting, and the positioning accuracy of the bearing is ensured.
Then the right pressure head 14 connected with the press is sleeved into the product shaft, the lower end face of the right pressure head is contacted with the bearing 12, then the press is controlled to press the right pressure head 14, the bearing 12 is gradually pressed down to the preassembly position of the product shaft 13, in the pressing process, the bearing 12 is always positioned in the middle space of the bearing positioning sleeve 4, the bearing 12 is always positioned and guided, when one end of the press mounting is finished, the single rod cylinder 101 is controlled to extend, so that the floating joint connecting block 104 moves upwards, thereby driving the floating plate 1 to rise to the highest position, then the product shaft 5 can be taken out by a mechanical arm, the upward and downward turning direction is carried out, and then the product shaft is put into the fixed positioning sleeve 93 of the left positioning assembly 9, the lower end face of the product shaft 5 is contacted with the upper end face of the press mounting supporting block 92, then the mechanical arm is utilized to grasp the position of the other end of the product shaft 5, where the bearing is required to be mounted, afterwards the single rod cylinder 101 is controlled to shrink, so that the floating joint connecting block 104 moves downwards, driving the floating plate 1 to drop to the lowest position,
then, the other bearing 12 is grabbed by a manipulator to be sleeved into a position close to press mounting at the other end of the product shaft 5 from top to bottom, at this time, the bearing 12 is also positioned in the middle space of the bearing positioning sleeve 4, then the left side pressing head 15 controlled by the press is pressed down, then the right side pressing head 14 connected with the press is sleeved into the product shaft, the lower end face of the right side pressing head is contacted with the bearing 12, then the right side pressing head 14 is pressed down by controlling the press action, the bearing 12 is gradually pressed down to the preassembly position of the product shaft 13, in the pressing process, the bearing 12 is always positioned in the middle space of the bearing positioning sleeve 4, the bearing 12 is always positioned and guided, the bearing 12 and the product shaft 5 are finally pressed into a whole, a final finished product is generated, the action of the single-rod cylinder 101 is controlled to extend, the floating joint connecting block 104 is enabled to move upwards, the floating plate 1 is driven to be lifted to the highest position, and then the finished product is taken out by the manipulator, and the whole press mounting process is completed.
The foregoing detailed description is provided to illustrate the present utility model and not to limit the utility model, and any modifications and changes made to the present utility model within the spirit of the present utility model and the scope of the appended claims fall within the scope of the present utility model.
Claims (7)
1. The automatic positioning and press-fitting mechanism for the bearings at two ends is characterized by comprising an upper positioning assembly, a lower positioning assembly and an auxiliary assembly, wherein the upper positioning assembly comprises a floating plate (1), two bearing positioning sleeves (4) and a plurality of linear bearings (2) are arranged on the floating plate (1), the bearing positioning sleeves (4) are used for positioning the bearings to be press-fitted, the lower positioning assembly comprises a positioning bottom plate (8), a left positioning seat assembly (9), a right positioning seat assembly (11) and a plurality of guide shaft supports (7) are fixedly arranged on the positioning bottom plate (8), and the left positioning seat assembly (9) and the right positioning seat assembly (11) are respectively used for positioning the shafts to be press-fitted; the guide shaft supports (7) correspond to the linear bearings (2), guide posts (3) are fixedly arranged on each guide shaft support (7), each guide post (3) is in sliding connection with the corresponding linear bearing (2), and an air cylinder assembly (10) is arranged in the middle of the positioning bottom plate (8).
2. The automatic positioning and press-fitting mechanism for the bearings at two ends according to claim 1, wherein the left positioning seat assembly (9) comprises a left positioning seat (91), the left positioning seat (91) is fixed on a positioning bottom plate and is internally provided with a cavity, a press-fitting supporting block (92) is fixedly arranged in the cavity of the left positioning seat (91), a fixed positioning sleeve (93) is fixedly arranged on the top end face of the press-fitting supporting block (92), and a shaft to be press-fitted is inserted into the fixed positioning sleeve (93).
3. The automatic positioning and press-fitting mechanism for the bearings at two ends according to claim 1, wherein the right positioning seat assembly (11) comprises a right positioning seat (111), the right positioning seat (111) is fixed on a positioning bottom plate and is internally provided with a cavity, a press-fitting supporting shaft (112) is fixedly arranged in the cavity of the right positioning seat (111), a compression spring (113) is arranged on the outer wall of the press-fitting supporting shaft (112), a floating positioning sleeve (114) is slidably connected to the inner wall of the cavity of the right positioning seat (111), the lower end of the floating positioning sleeve (114) is sleeved on the press-fitting supporting shaft (112) and the bottom surface of the floating positioning sleeve is in contact with the compression spring (113), and the shaft to be press-fitted is inserted into the floating positioning sleeve (114).
4. The automatic positioning and press-fitting mechanism for two-end bearings according to claim 3, wherein the top end face of the floating positioning sleeve (114) is higher than the top end face of the right positioning seat (111).
5. The automatic positioning and press-fitting mechanism for the bearings at two ends according to claim 1, wherein the cylinder assembly (10) comprises a single-rod cylinder (101), a cylinder mounting plate (102) is fixedly connected to the bottom of the single-rod cylinder (101), the cylinder mounting plate (102) is fixedly connected with a positioning bottom plate (8), a floating joint (103) is fixedly connected to the output end of the single-rod cylinder (101), a floating joint connecting block (104) is fixedly connected to the floating joint (103), and the floating joint connecting block (104) is fixedly connected with the bottom surface of the floating plate (1).
6. The automatic positioning and press-fitting mechanism for the bearings at two ends according to claim 5, wherein the left positioning seat assembly (9) and the right positioning seat assembly (11) are symmetrically distributed by taking the single-rod cylinder (101) as a central axis.
7. The automatic positioning and press-fitting mechanism for the bearings at two ends according to claim 1, wherein the auxiliary assembly comprises a right side press head (14) and a left side press head (15), both the right side press head (14) and the left side press head (15) are controlled by a press, the outer diameters of the right side press head (14) and the left side press head (15) are smaller than the inner diameter of a hollow part in the middle of the bearing positioning sleeve (4), and circular grooves are formed in the end faces of the bottom ends of the right side press head (14) and the left side press head (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321616286.7U CN220313240U (en) | 2023-06-25 | 2023-06-25 | Automatic positioning press-fitting mechanism for bearings at two ends |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321616286.7U CN220313240U (en) | 2023-06-25 | 2023-06-25 | Automatic positioning press-fitting mechanism for bearings at two ends |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220313240U true CN220313240U (en) | 2024-01-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321616286.7U Active CN220313240U (en) | 2023-06-25 | 2023-06-25 | Automatic positioning press-fitting mechanism for bearings at two ends |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220313240U (en) |
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2023
- 2023-06-25 CN CN202321616286.7U patent/CN220313240U/en active Active
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