Closed double-point press transmission device
By designing a closed-type two-point press transmission device in the press, and using the servo motor drive gear system to achieve synchronous rotation of the four push screws, the problems of uneven downforce of traditional presses and deviation of the pressure plate are solved, and the downpressure accuracy and processing effect are improved.
Patent Information
- Application Number
- CN202421022793.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-11
- Publication Date
- 2025-03-11
- Estimated Expiration
- 2034-05-11
AI Technical Summary
Since there is only one output point in traditional presses, the downforce output is uneven, and the pressure plate is prone to deviate, resulting in a downforce angle deviation, which affects the material processing effect.
A closed-type double-point press transmission device is designed, using a servo motor to drive the driving gear disk, synchronously driving the two driven gear disks and four screw rotating gear disks, achieving the synchronous rotation of the four push screws, ensuring that the four corners of the pressure plate drive plate are evenly moved downward.
By synchronously driving the four push screws, we ensure that the four corners of the pressure plate drive plate are balanced under stress, avoid deviation, improve downward accuracy, and reduce product errors.
Smart Images
Figure CN222590765U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of presses, in particular to a closed double-point press transmission device. Background Art
[0002] Auto parts are the various units that make up the whole of a car and a product that serves the car. There are many types of auto parts, and presses are needed for their production and processing. A press is a general-purpose press with a sophisticated structure. It has the characteristics of wide application and high production efficiency. The press can be widely used in cutting, punching, blanking, bending, riveting and forming processes. It applies strong pressure to the metal blank to make the metal plastically deform and fracture to process it into parts. However, the traditional press has only one output point, which leads to uneven pressure output, and the pressing plate often deviates when pressing down, resulting in deviations in the pressing angle, which affects the processing effect of the material. How to evenly force both sides of the pressing plate to press down to ensure that the pressing plate does not deviate is an important technology to ensure the processing accuracy of parts. Utility Model Content
[0003] The utility model aims to solve one of the technical problems in the related art to at least a certain extent. To this end, one purpose of the utility model is to provide a closed double-point press transmission device, which solves the problem that the press uses one output force point to press down, resulting in unbalanced pressure on the entire plate and deviation in the pressurization of parts.
[0004] According to a closed double-point press transmission device proposed by the utility model, it includes a transmission installation box, a servo motor, a transmission gear assembly, a pushing screw group, a pressure plate assembly and a pressure bottom plate, the transmission gear assembly includes a driving gear plate, two driven gear plates and four screw rotating gear plates, the end of the rotating shaft of the servo motor is sleeved with a driving gear plate, the left and right sides of the driving gear plate are symmetrically meshed with two driven gear plates, the two driven gear plates are symmetrically meshed with two screw rotating gear plates on the outer sides, the central axis position of the driven gear plate is penetrated by a shaft and the two ends of the shaft are sleeved with bearings, the pressure plate assembly includes a pressure plate driving plate and a pressure plate, the lower surface of the pressure plate driving plate is installed with a pressure plate, the four corners of the pressure plate driving plate are respectively spirally penetrated by pushing screws, the top and bottom ends of the pushing screw are respectively sleeved with a bearing, the bearing sleeved at the bottom end of the pushing screw is embedded in the corner of the upper surface of the pressure bottom plate, the screw rotating gear plate is sleeved on the pushing screw and close to the bottom of the top bearing, and the servo motor and the transmission gear assembly are installed in the transmission installation box.
[0005] In some embodiments of the utility model, a square groove is provided in the middle position of the lower surface of the pressure plate driving plate, a square protrusion matching the square groove is provided on the upper surface of the pressure plate, two bolt holes penetrating into the square groove are provided on the pressure plate driving plate, and two bolt holes matching the bolt holes are provided on the square protrusion. The square protrusion is inserted into the square groove and the bolts are inserted from the bolt holes and screwed into the bolt holes to fix the pressure plate.
[0006] In some other embodiments of the present invention, the pressing plates have different sizes but a uniform thickness.
[0007] In other embodiments of the present invention, the bolt column diameter of the bolt is smaller than the diameter of the bolt insertion hole.
[0008] In other embodiments of the present invention, the diameter of the driven gear plate is more than twice the diameter of the driving gear plate, and the diameter of the driven gear plate is larger than the diameter of the screw rotating gear plate but not larger than twice the diameter.
[0009] In other embodiments of the present invention, the driving gear plate, the two driven gear plates and the four screw rotating gear plates are all placed horizontally and in the same horizontal plane.
[0010] In the utility model, the driving gear plate driven by the servo motor can synchronously drive the two driven gear plates to rotate synchronously, and the synchronous rotation of the two driven gear plates can synchronously drive the four screw-rotating gear plates to rotate, so as to ensure that the four pushing screws are synchronously driven to rotate synchronously to realize the synchronous downward movement of the four corners of the pressure plate driving plate, thereby ensuring that the pressure plate driving plate is subjected to uniform downward force without deviation, thereby ensuring that the error of the pressed product is reduced. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:
[0012] Figure 1 The utility model is a structural schematic diagram of a closed double-point press transmission device.
[0013] Figure 2 This is a schematic cross-sectional structure diagram of the pressing plate driving plate and the pressing plate proposed in the utility model.
[0014] Figure 3 This is a schematic structural diagram of the cross section of the pressure plate driving plate and the pressure plate under assembly proposed by the utility model.
[0015] In the figure: 1, transmission mounting box; 10, bearing; 2, servo motor; 21, driving gear plate; 3, driven gear plate; 4, screw rod rotating gear plate; 5, pushing screw rod; 6, pressure plate driving plate; 61, bolt socket; 610, bolt; 62, square groove; 7, pressure plate; 71, square protrusion; 710, bolt hole; 8, pressure bottom plate;. DETAILED DESCRIPTION
[0016] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.
[0017] Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.
[0018] Reference Figure 1-3 A closed double-point press transmission device includes a transmission installation box 1, a servo motor 2, a transmission gear assembly, a push screw 5 group, a pressure plate assembly and a pressure bottom plate 8, the transmission gear assembly includes a driving gear plate 21, two driven gear plates 3 and four screw rotating gear plates 4, the end of the rotating shaft of the servo motor 2 is sleeved with a driving gear plate 21, the driving gear plate 21 is symmetrically meshed with two driven gear plates 3 on the left and right sides, the two driven gear plates 3 are symmetrically meshed with two screw rotating gear plates 4 on the outer sides, and the central axis position of the driven gear plate 3 is through A shaft rod is passed through and bearings 10 are sleeved at both ends of the shaft rod. The pressure plate assembly includes a pressure plate driving plate 6 and a pressure plate 7. The pressure plate driving plate 6 has a pressure plate 7 installed on its lower surface. The four corners of the pressure plate driving plate 6 are respectively spirally penetrated by a pushing screw 5. The top and bottom ends of the pushing screw 5 are respectively sleeved with a bearing 10. The bearing 10 sleeved at the bottom end of the pushing screw 5 is embedded in the corner of the upper surface of the pressure bottom plate 8. The screw rotating gear plate 4 is sleeved on the pushing screw 5 and is close to the bottom of the top bearing 10. The servo motor 2 and the transmission gear assembly are installed in the transmission mounting box 1.
[0019] The servo motor drives the driving gear plate 21 to rotate (a bearing is sleeved on the servo motor shaft to stabilize the shaft). The driving gear plate 21 can synchronously drive the two identical driven gear plates 3 meshing with it to ensure that the same driving force is provided on both sides. The two screw-rotating gear plates 4 meshing with each driven gear plate 3 will be synchronously driven. At this time, the four screw-rotating gear plates 4 will rotate synchronously to ensure that the four push screws 5 rotate synchronously, thereby achieving the same thrust and synchronous up and down movement of the four corners of the pressure plate driving plate 6. Providing the same thrust to the four corners of the pressure plate driving plate 6 ensures that the four corners of the pressure plate driving plate 6 press the product downward in a balanced manner.
[0020] A square groove 62 is provided in the middle position of the lower surface of the pressure plate driving plate 6, and a square protrusion 71 matching the square groove 62 is provided on the upper surface of the pressure plate 7. Two bolt insertion holes 61 penetrating into the square groove 62 are provided on the pressure plate driving plate 6, and two bolt holes 710 matching the bolt insertion holes 61 are provided on the square protrusion 71. The square protrusion 71 is inserted into the square groove 62 and the bolt 610 is inserted from the bolt insertion hole 61 and screwed into the bolt hole 710 to fix the pressure plate 7.
[0021] Since the products may have different specifications, as required, a detachable pressing plate 7 is provided, and the pressing plate 7 can be replaced with different sizes to achieve pressing down different products. The square protrusions 71 of all pressing plates 7 are the same in size and are installed in the same manner.
[0022] The pressing plate 7 has different sizes but the thickness of the pressing plate 7 is uniform. It is convenient to control the downward movement distance of the pressing plate, which is determined by the number of revolutions of the servo motor 2.
[0023] The bolt column diameter of the bolt 610 is smaller than the diameter of the bolt insertion hole 61. The diameter of the bolt insertion hole 61 is 1.1-1.3 times the bolt column diameter of the bolt 610, so that there will be no large shaking after insertion, and it is easy to insert.
[0024] The diameter of the driven gear disc 3 is more than twice the diameter of the driving gear disc 21, and the diameter of the driven gear disc 3 is larger than the diameter of the screw rotating gear disc 4 but not larger than twice the diameter thereof. The driving gear disc 21 drives the driven gear disc 3 with a large diameter through a small diameter, which makes the driving more convenient. The diameter of the driven gear disc 3 is larger than the diameter of the screw rotating gear disc 4 to prevent the screw rotating gear discs 4 from touching each other due to being too large, and to ensure that the two screw rotating gear discs 4 and the driving gear disc 21 mesh at three points of the driven gear disc 3, and the force points form a nearly equilateral triangle, which makes the driving more powerful.
[0025] The driving gear disc 21, the two driven gear discs 3 and the four screw rotating gear discs 4 are all placed horizontally and in the same horizontal plane, so there will be no obvious thread misalignment, the driving is stable, and synchronous driving is convenient.
[0026] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.
Claims
1. A closed double-point press transmission device, characterized in that: The invention comprises a transmission installation box (1), a servo motor (2), a transmission gear assembly, a driving screw (5) group, a pressure plate assembly and a pressure bottom plate (8), wherein the transmission gear assembly comprises a driving gear plate (21), two driven gear plates (3) and four screw rotating gear plates (4), the end of the rotating shaft of the servo motor (2) is sleeved with the driving gear plate (21), the left and right sides of the driving gear plate (21) are symmetrically meshed with two driven gear plates (3), the outer sides of the two driven gear plates (3) are symmetrically meshed with two screw rotating gear plates (4) in the front and back directions, the central axis of the driven gear plate (3) is penetrated by a shaft rod and the two ends of the shaft rod are sleeved with The pressure plate assembly comprises a pressure plate driving plate (6) and a pressure plate (7). The pressure plate driving plate (6) is provided with a pressure plate (7) on its lower surface. A push screw (5) is spirally penetrated through the four corners of the pressure plate driving plate (6). The top and bottom ends of the push screw (5) are respectively sleeved with a bearing (10). The bearing (10) sleeved at the bottom end of the push screw (5) is embedded in the corner of the upper surface of the pressure bottom plate (8). The screw rotating gear plate (4) is sleeved on the push screw (5) and is close to the bottom of the top bearing (10). The servo motor (2) and the transmission gear assembly are installed in the transmission mounting box (1).
2. A closed double-point press transmission device according to claim 1, characterized in that: A square groove (62) is provided in the middle of the lower surface of the pressure plate driving plate (6), and a square protrusion (71) matching the square groove (62) is provided on the upper surface of the pressure plate (7). Two bolt insertion holes (61) penetrating into the square groove (62) are provided on the pressure plate driving plate (6), and two bolt holes (710) matching the bolt insertion holes (61) are provided on the square protrusion (71). The square protrusion (71) is inserted into the square groove (62) and is inserted from the bolt insertion hole (61) by a bolt (610) and screwed into the bolt hole (710) to fix the pressure plate (7).
3. A closed double-point press transmission device according to claim 2, characterized in that: The pressing plates (7) have specifications of different sizes but the thickness of the pressing plates (7) is uniform.
4. A closed double-point press transmission device according to claim 2, characterized in that: The bolt column diameter of the bolt (610) is smaller than the diameter of the bolt insertion hole (61).
5. A closed double-point press transmission device according to claim 1, characterized in that: The diameter of the driven gear plate (3) is more than twice the diameter of the driving gear plate (21), and the diameter of the driven gear plate (3) is larger than the diameter of the screw rotating gear plate (4) but not larger than twice the diameter thereof.
6. A closed double-point press transmission device according to claim 1, characterized in that: The driving gear plate (21), the two driven gear plates (3) and the four screw rotating gear plates (4) are all placed horizontally and in the same horizontal plane.