CN211991709U - Spline shaft nut integrated built-in pressure sensor servo press - Google Patents
Spline shaft nut integrated built-in pressure sensor servo press Download PDFInfo
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- CN211991709U CN211991709U CN202020392256.2U CN202020392256U CN211991709U CN 211991709 U CN211991709 U CN 211991709U CN 202020392256 U CN202020392256 U CN 202020392256U CN 211991709 U CN211991709 U CN 211991709U
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- spline shaft
- shaft nut
- pressure sensor
- bearing seat
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Abstract
The utility model discloses a spline shaft nut integration embeds servo press of pressure sensor, including the frame, still include: a ball screw; the first bearing seat is arranged at the end part of the ball screw close to the rack; the first bearing is arranged inside one end, close to the rack, of the first bearing seat; the second bearing seat is arranged at one end of the first bearing seat far away from the frame; the second bearing is arranged inside one end, far away from the rack, of the second bearing seat; the pressure sensor is arranged inside one end, close to the rack, of the second bearing block; the spline shaft nut is arranged on the outer side of the ball screw, and a spline sleeve is arranged at the outer end part of the spline shaft nut; and the pressure head is fixed at the end part of the spline shaft nut. Utility model embeds pressure sensor, and compact structure reduces the setting of a plurality of parts, and cost reduction, the size reduces, has stronger antitorque ability.
Description
Technical Field
The utility model relates to a machinery pressure equipment technique specifically is a spline shaft nut integration embeds servo press of pressure sensor.
Background
The servo press is a new industry in China at present, and is mainly applied to press mounting of bearings or press mounting of some interference fit pieces in an automobile production process.
At present, the products mainly used in the domestic automobile industry are imported brand Qishile, and the domestic products have a large gap in the aspects of technology and the like.
The pressure sensor of the Qishile product is of a built-in structure, and meanwhile, the Qishile product is compact in size. At present, a common method of domestic servo presses is to add a position and pressure detection sensor on the basis of a traditional servo electric cylinder to realize the function of the servo press. However, the existing domestic products are all of external structures of pressure sensors, namely the pressure sensors are arranged on the outer side of the body of the servo electric cylinder, and the pressure sensors are additionally arranged at the tail ends of push rods of the servo electric cylinder. The structure size is bigger, also difficult in order to guarantee the degree of parallelism of pressure equipment face and pressure sensor face.
Traditional servo press mechanical system usually need arrange piston mechanism in the cylinder is inside, and servo motor drives ball through drive mechanism and produces rotary motion, and through the piston, the rotary motion of ball nut is restricted to two parts of direction copper key to ball nut converts ball screw's rotary motion into linear motion, thereby drives piston and cavity push rod and realizes linear motion, carries out the pressure equipment to the product through the pressure head. The structure is characterized in that the pressure sensor is arranged externally, the structure is large, the anti-torsion guide is realized through the guide copper key, the friction force is sliding friction force, the copper key cannot be in interference fit with the guide key groove in the piston or has zero clearance, and therefore the rotating clearance of the press can not be eliminated, and the absolute positioning precision is influenced.
SUMMERY OF THE UTILITY MODEL
For solving the defect of above-mentioned prior art, the utility model provides a spline shaft nut integration embeds servo press of pressure sensor, the utility model discloses it is built-in with pressure sensor, compact structure reduces the setting of a plurality of parts, and cost reduction, size reduction, antitorque direction are through the ball spline, and frictional force is rolling frictional force, can realize the zero clearance of gyration through the pretightning force of adjustment ball spline, has stronger antitorque ability.
In order to realize the technical purpose, the utility model discloses following technological effect has been obtained: the utility model provides a spline shaft nut integration embeds servo press of pressure sensor, includes the frame, still includes:
a ball screw;
the first bearing seat is arranged at the end part of the ball screw close to the rack;
the first bearing is arranged inside one end, close to the rack, of the first bearing seat;
the second bearing seat is arranged at one end, far away from the rack, of the first bearing seat;
the second bearing is arranged inside one end, far away from the rack, of the second bearing seat;
the pressure sensor is arranged inside one end, close to the rack, of the second bearing block;
the spline shaft nut is arranged on the outer side of the ball screw, and a spline sleeve is arranged at the outer end part of the spline shaft nut;
the pressure head is fixed at the end part of the spline shaft nut;
a partition plate is arranged at one end, far away from the rack, of the first bearing seat, and the pressure sensor and the first bearing are located on two sides of the partition plate respectively.
Further, the first bearing seat is fixed on the frame.
Furthermore, a cylinder barrel is arranged outside the ball screw, and the cylinder barrel is fixed on the spline housing and the second bearing seat through a second bolt and a third bolt.
Further, a wear-resistant sleeve is arranged between the spline shaft nut and the ball screw.
Further, the first bearing and the second bearing both adopt tapered roller bearings.
To sum up, the utility model discloses following technological effect has been gained:
1. the utility model is provided with a first bearing seat and a second bearing seat which are used for supporting the cylinder barrel and installing a first bearing and a second bearing, thereby realizing the stable rotation of the ball screw;
2. the utility model discloses utilize the baffle to separate first bearing and pressure sensor, the baffle is used for being connected pressure sensor's installation face and press body fixedly, and pressure sensor's the other one side contacts with the second bearing that bears the press load to the accurate detection goes out the reverse effort that the press bore in the use, and this power equals with the output pressure of press:
3. the utility model arranges the pressure head at the end of the spline shaft nut, which can press fit the product;
4. the utility model discloses with pressure sensor built-in, compact structure reduces the setting of a plurality of parts, and cost reduction, size reduction, antitorque direction are through the ball spline, and frictional force is rolling frictional force, can realize the zero clearance of gyration through the pretightning force of adjustment ball spline, have stronger antitorque power.
Drawings
Fig. 1 is a schematic view of a servo press according to an embodiment of the present invention;
FIG. 2 is an axial partial cross-sectional view of FIG. 1;
in the figure, 1, a cylinder barrel, 2, a ball screw, 3, a first bearing, 4, a first bearing seat, 5, a pressure sensor, 6, a second bearing seat, 7, a second bearing, 8, a spline shaft nut, 9, a spline sleeve, 10, a pressure head, 11, a first bolt, 12, a second bolt, 13, a frame, 14, a partition plate, 15, a third bolt, 16, a wear-resistant sleeve, 17, a servo motor, 18, a belt, 19, a driven wheel, 20 and a small-diameter shaft.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.
Example (b):
as shown in fig. 1 and 2, the spline shaft nut integrated servo press with the built-in pressure sensor comprises a frame 13, and further comprises:
the ball screw 2, the ball screw 2 is connected with a servo motor 17, the servo motor 17 drives the ball screw 2 to rotate through a belt 18, a driven wheel 19 and a driving wheel (not shown).
The first bearing seat 4 is arranged at the end part, close to the rack 13, of the ball screw 2, the first bearing seat 4 is fixedly connected with the rack 13, and a partition plate 14 is arranged at one end, far away from the rack 13, of the first bearing seat 4.
The first bearing 3 is arranged in one end of the first bearing seat 4 close to the frame 13 and positioned at the right side (based on the direction in the figure) of the partition plate 14, and the first bearing 3 is arranged outside the ball screw 2.
And the second bearing seat 6 is arranged at one end of the first bearing seat 4 far away from the frame 13.
And the second bearing 7, wherein the second bearing 7 is arranged inside one end of the second bearing seat 6 far away from the frame 13. Wherein, the first bearing 3 and the second bearing 7 both adopt tapered roller bearings.
The pressure sensor 5 is arranged inside one end of the second bearing seat 6 close to the frame 13 and is positioned on the left side (based on the direction of the figure) of the partition 14.
The one end that ball 2 is close to frame 13 is little diameter axle 20, and its diameter is less than the diameter of ball 2 bodies, and first bearing 3 all locates on this little diameter axle 20 with second bearing 7, pressure sensor 5, and the tip of second bearing 7 offsets with the junction of ball 2 bodies, little diameter axle 20, can accept the pressure that ball 2 bodies received to the transmission is for pressure sensor 5.
Spline shaft nut 8, spline shaft nut 8 locate the ball 2 outsides, are equipped with wear-resisting cover 16 between spline shaft nut 8 and the ball 2. The outer end of the spline shaft nut 8 is provided with a spline housing 9.
And the pressure head 10 is fixed at the end part of the spline shaft nut 8 through a first bolt 11.
The ball screw 2 is externally provided with a cylinder barrel 1, and the cylinder barrel 1 is fixed on the spline housing 9 and the second bearing block 6 through a second bolt 12 and a third bolt 15.
During the in-service use, servo motor 17 passes through belt 18 and from driving wheel 19, action wheel drive ball 2 and produces rotary motion, and the integral key shaft nut product that ball 2, integral key shaft nut 8, spline housing 9 three parts are constituteed converts ball 2's rotary motion into the linear motion of integral key shaft nut 8, and pressure head 10 adopts first bolt 11 with integral key shaft nut 8 to carry out fixed connection, carries out the pressure equipment to the product that needs the pressure equipment through pressure head 10.
The utility model has great advantages in the aspect of the whole structure, the number of spare and accessory parts is greatly reduced, the structure is compact, and the built-in of the pressure sensor is realized; the overall dimension L of the servo press is greatly reduced in the same configuration, in this case a servo press rated for 10 tons with a stroke of 200mm, and the maximum value of the overall dimension L at the origin of the press is 656mm, whereas the dimension L of a conventional servo press of the same tonnage is greater than 750 mm.
The utility model discloses an antitorque direction is through the ball spline, and frictional force is rolling frictional force, can realize the zero clearance of gyration through the pretightning force of adjustment ball spline, has stronger antitorque ability.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and all the modifications and equivalents of the technical spirit of the present invention to any simple modifications of the above embodiments are within the scope of the technical solution of the present invention.
Claims (5)
1. The utility model provides a spline shaft nut integration embeds servo press of pressure sensor, includes frame (13), its characterized in that still includes:
a ball screw (2);
the first bearing seat (4), the first bearing seat (4) is arranged at the end part of the ball screw (2) close to the rack (13);
the first bearing (3), the first bearing (3) is arranged in one end of the first bearing seat (4) close to the frame (13);
the second bearing block (6), the second bearing block (6) is arranged at one end, far away from the frame (13), of the first bearing block (4);
the second bearing (7), the second bearing (7) is arranged in one end of the second bearing block (6) far away from the rack (13);
the pressure sensor (5), the said pressure sensor (5) locates the inside of one end close to the said stander (13) of the said second bearing bracket (6);
the spline shaft nut (8), the spline shaft nut (8) is arranged on the outer side of the ball screw (2), and a spline sleeve (9) is arranged at the outer end part of the spline shaft nut (8);
the pressure head (10), the pressure head (10) is fixed on the end part of the spline shaft nut (8);
one end, far away from the rack (13), of the first bearing seat (4) is provided with a partition plate (14), and the pressure sensor (5) and the first bearing (3) are respectively located on two sides of the partition plate (14).
2. The spline shaft nut integrated built-in pressure sensor servo press as claimed in claim 1, wherein: the first bearing seat (4) is fixed on the frame (13).
3. The spline shaft nut integrated built-in pressure sensor servo press as claimed in claim 1, wherein: the ball screw (2) is externally provided with a cylinder barrel (1), and the cylinder barrel (1) is fixed on the spline housing (9) and the second bearing seat (6) through a second bolt (12) and a third bolt (15).
4. The spline shaft nut integrated built-in pressure sensor servo press as claimed in claim 1, wherein: and a wear-resistant sleeve (16) is arranged between the spline shaft nut (8) and the ball screw (2).
5. The spline shaft nut integrated built-in pressure sensor servo press as claimed in claim 1, wherein: the first bearing (3) and the second bearing (7) both adopt tapered roller bearings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020392256.2U CN211991709U (en) | 2020-03-24 | 2020-03-24 | Spline shaft nut integrated built-in pressure sensor servo press |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020392256.2U CN211991709U (en) | 2020-03-24 | 2020-03-24 | Spline shaft nut integrated built-in pressure sensor servo press |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211991709U true CN211991709U (en) | 2020-11-24 |
Family
ID=73431663
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020392256.2U Active CN211991709U (en) | 2020-03-24 | 2020-03-24 | Spline shaft nut integrated built-in pressure sensor servo press |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211991709U (en) |
-
2020
- 2020-03-24 CN CN202020392256.2U patent/CN211991709U/en active Active
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