CN111230450A - Spline shaft nut integrated built-in pressure sensor servo press - Google Patents
Spline shaft nut integrated built-in pressure sensor servo press Download PDFInfo
- Publication number
- CN111230450A CN111230450A CN202010212965.2A CN202010212965A CN111230450A CN 111230450 A CN111230450 A CN 111230450A CN 202010212965 A CN202010212965 A CN 202010212965A CN 111230450 A CN111230450 A CN 111230450A
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- China
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- bearing
- spline shaft
- pressure sensor
- shaft nut
- bearing seat
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
- B23P19/02—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for connecting objects by press fit or for detaching same
Abstract
The invention discloses a spline shaft nut integrated built-in pressure sensor servo press, which comprises a frame and also comprises: 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. The pressure sensor is internally arranged, the structure is compact, the arrangement of a plurality of parts is reduced, the cost is reduced, the size is reduced, and the torsion resistance is stronger.
Description
Technical Field
The invention relates to a mechanical press-fitting technology, in particular to a spline shaft nut integrated servo press with a built-in 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.
Disclosure of Invention
In order to solve the defects of the prior art, the invention provides the spline shaft and nut integrated built-in pressure sensor servo press, the pressure sensor is built in, the structure is compact, the arrangement of a plurality of parts is reduced, the cost is reduced, the size is reduced, the anti-torsion guide is realized through a ball spline, the friction force is rolling friction force, the zero clearance of the rotation can be realized by adjusting the pretightening force of the ball spline, and the anti-torsion capability is stronger.
In order to achieve the technical purpose, the invention achieves the following technical effects: 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.
In conclusion, the invention achieves the following technical effects:
1. the ball screw is provided with the first bearing seat and the second bearing seat which are used for supporting the cylinder barrel and installing the first bearing and the second bearing, so that the stable rotation of the ball screw is realized;
2. the invention separates the first bearing and the pressure sensor by the clapboard, the clapboard is used for connecting and fixing the mounting surface of the pressure sensor with the press body, the other surface of the pressure sensor is contacted with the second bearing the load of the press, thereby accurately detecting the reverse acting force born by the press in the using process, and the force is equal to the output pressure of the press:
3. the end part of the spline shaft nut is provided with the pressure head, so that a product can be pressed and mounted;
4. the pressure sensor is internally arranged, the structure is compact, the arrangement of a plurality of parts is reduced, the cost is reduced, the size is reduced, the torsion-resistant guide is realized through the ball spline, the friction force is rolling friction force, the zero clearance of the rotation can be realized by adjusting the pretightening force of the ball spline, and the torsion-resistant pressure sensor has stronger torsion resistance.
Drawings
FIG. 1 is a schematic view of a servo press provided by 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 of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law 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 invention has great advantages in the aspect of integral structure, greatly reduces the number of spare and accessory parts, has compact structure and realizes the built-in of the pressure sensor; 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 torsion-resistant guide device has the advantages that the torsion-resistant guide is realized through the ball spline, the friction force is rolling friction force, the zero clearance of rotation can be realized through adjusting the pretightening force of the ball spline, and the torsion-resistant guide device has stronger torsion resistance.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not intended to limit the present invention in any way, and all simple modifications, equivalent variations and modifications made to the above embodiments according to the technical spirit of the present invention 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 |
|---|---|---|---|
| CN202010212965.2A CN111230450A (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 |
|---|---|---|---|
| CN202010212965.2A CN111230450A (en) | 2020-03-24 | 2020-03-24 | Spline shaft nut integrated built-in pressure sensor servo press |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111230450A true CN111230450A (en) | 2020-06-05 |
Family
ID=70879017
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010212965.2A Pending CN111230450A (en) | 2020-03-24 | 2020-03-24 | Spline shaft nut integrated built-in pressure sensor servo press |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111230450A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112246997A (en) * | 2020-10-10 | 2021-01-22 | 常州今创风挡系统有限公司 | Quick continuous clamping gun |
-
2020
- 2020-03-24 CN CN202010212965.2A patent/CN111230450A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112246997A (en) * | 2020-10-10 | 2021-01-22 | 常州今创风挡系统有限公司 | Quick continuous clamping gun |
| CN112246997B (en) * | 2020-10-10 | 2024-04-05 | 常州今创风挡系统有限公司 | Quick continuous gun |
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