CN112793205A

CN112793205A - Double-shaft synchronous bidirectional operation press machine

Info

Publication number: CN112793205A
Application number: CN201911103876.8A
Authority: CN
Inventors: 刘鹏; 董凯; 陈海
Original assignee: Haoke Robot Taizhou Co ltd
Current assignee: Haoke Robot Taizhou Co ltd
Priority date: 2019-11-13
Filing date: 2019-11-13
Publication date: 2021-05-14

Abstract

A double-shaft synchronous bidirectional operation press machine comprises a power input and reduction device, a power output gear, a frame top seat, a first motion guide assembly, a first power transmission assembly, a second motion guide assembly, a press body and a frame base. The power input and reduction gear set up in frame footstock top and link firmly with the frame footstock, power take off gear sets up in power input and reduction gear below, first motion direction subassembly sets up respectively in frame footstock both sides with second motion direction subassembly, first power transmission subassembly sets up respectively in establishing power take off gear both sides with second power transmission subassembly, press the body to set up in frame footstock below, the base sets up in the machine bottom, and both sides link firmly with first direction subassembly and second direction subassembly respectively. The double-shaft synchronous driving and double-side synchronous guiding are adopted, so that the press has higher rigidity, higher precision stability and higher output pressure. The bidirectional operation can be realized, and the efficiency is higher.

Description

Double-shaft synchronous bidirectional operation press machine

Technical Field

The invention belongs to the technical field of mechanical equipment and mechanical transmission, and particularly relates to a double-shaft synchronous bidirectional operation press.

Background

In the modern industrial field, a series of press-fitting devices and stamping devices are often used in mechanical product production lines and product testing production lines, and high-precision and small-sized press-fitting test tables and stamping machines are gradually popularized in daily life of people.

The pressure device on the market at present is mainly a screw press. For the compact mechanism, the stability of precision, the operating space, in the work efficiency, this kind of decelerator has four aspects and lacks:

firstly, the method comprises the following steps: the press fitting work can not be realized in the return stroke process of the press body, and the efficiency is lower;

secondly, the method comprises the following steps: due to the characteristics of the mechanism, the large-stroke working space and the compact mechanism are not easy to realize and are simultaneously considered;

thirdly, the method comprises the following steps: the speed is reduced only by one lead screw, and the ratio of the output pressure to the input pressure is small;

fourthly: the force transmission is realized by a lead screw, so that the abrasion is fast, and the long-term precision stability is difficult to maintain;

disclosure of Invention

The purpose of the invention is as follows: the invention aims to provide a double-shaft synchronous bidirectional operation press, which solves the problems that the large working space and the structural compactness of the press are simultaneously considered and the press is operated bidirectionally, further improves the pressure output and power input ratio of the press and can obtain better precision stability.

The technical scheme is as follows: the invention provides a double-shaft synchronous bidirectional operation press machine which comprises a power input and reduction device, a power output gear, a rack top seat, a first motion guide assembly, a first power transmission assembly, a second motion guide assembly, a press body and a rack base. The power input and reduction device is arranged above the top seat of the frame and is fixedly connected with the top seat of the frame. The power output gear is arranged below the power input and reduction device and is fixedly connected with an output shaft of the power input and reduction device. By integrating the power output together in this way, the pressure input can be made smaller by using the speed reducer, which is beneficial to the miniaturization of the press.

Furthermore, the double-shaft synchronous bidirectional operation press machine is characterized in that the first motion guide comprises a first upright post, a first guide rail, a first sliding block, the first guide rail is fixedly connected with the first upright post, and the first sliding block is connected with the first guide rail and can move up and down along the first guide rail. The second motion guiding assembly comprises a second upright post, a second guide rail, a second sliding block, the second guide rail is fixedly connected with the second upright post, and the second sliding block is connected with the second guide rail and can move up and down along the second guide rail. The first motion guiding assembly and the second motion guiding assembly are respectively arranged on two sides of the top seat of the rack and are arranged in parallel. The first motion guide assembly is arranged on one side of the rack top seat and fixedly connected with one end of the rack top seat through the top end of the first upright post. The second motion guiding assembly is arranged on the other side of the rack top seat and fixedly connected with the other end of the rack top seat through the top end of the second upright post. The rack base is arranged at the lowest part in the middle of the first upright post and the second upright post, one end of the rack base is fixedly connected with the lower end of the first upright post, and the other end of the rack base is fixedly connected with the lower end of the second upright post. By adopting the mode, the guide mechanisms on the two sides and the lower base of the upper top seat are fixed together, so that the rigidity of the mechanism is improved, and the press machine is more stable.

Further, foretell synchronous two-way operation press of biax, a power transmission subassembly includes first drive gear, first bearing, first drive screw, first screw nut, second bearing, first drive screw passes the first mounting hole on the frame footstock and forms to rotate through first bearing and frame footstock and be connected, first drive screw top is in the same place with first drive gear rigid coupling, first drive screw lower extreme passes through the second bearing and is connected with the formation rotation of frame base. The first transmission gear is arranged on one side of the power output gear and is meshed with the gear teeth of the power output gear. The second power transmission assembly comprises a second transmission gear, a third bearing, a second transmission screw rod, a second screw rod nut and a fourth bearing, the second transmission screw rod penetrates through a second mounting hole in the top seat of the rack and is rotatably connected with the top seat of the rack through the third bearing, the top end of the second transmission screw rod is fixedly connected with the second transmission gear, and the lower end of the second transmission screw rod is rotatably connected with the base of the rack through the fourth bearing. The second transmission gear is arranged on the other side of the power output gear and meshed with the gear teeth of the power output gear. The axes of the first transmission screw rod and the second transmission screw rod are parallel; by adopting the mode, the first transmission gear and the second transmission gear are simultaneously driven by one power output gear, so that the transmission synchronism is ensured, and the movement synchronism of the lead screw nuts at the two ends of the pressing body is ensured. The two lead screws are adopted for transmission, so that the pressing body moves more stably, the rigidity of the structure is further improved, and the stress deformation is smaller and the precision is higher. Two lead screws are arranged on two sides of the pressing body, so that the space above and below the pressing body can be used, and the pressing body can be subjected to press mounting operation in the up-and-down movement process, so that the working efficiency of the press machine is higher.

Furthermore, in the double-shaft synchronous bidirectional operation press machine, the first lead screw nut and the first transmission lead screw form a lead screw nut connection. The second lead screw nut and the second transmission lead screw form a lead screw nut connection. The pressing body is fixedly connected with the first lead screw nut through the third mounting hole, the pressing body is fixedly connected with the second lead screw nut through the fourth mounting hole, one end of the pressing body is fixedly connected with the first sliding block in the first motion guide, and the other end of the pressing body is fixedly connected with the second sliding block in the second motion guide. By adopting the bilateral guide mode, the unbalance loading borne by the press body is further dispersed to the guide mechanism, the unbalance loading force of the lead screw is reduced, the equipment is more stable, and the long-term precision stability of the press machine is ensured;

drawings

FIG. 1 is a schematic structural view of a double-shaft synchronous two-way operation press machine according to the present invention;

FIG. 2 is an exploded view of a small static load balancing belt-driven mechanical arm according to the present invention;

in the figure, the power input and reduction device 1, the power output gear 2, the rack top base 3, the first through hole 311, the first through hole 312, the first motion guide assembly 4, the first upright post 41, the first guide rail 42, the first slide block 43, the first power transmission assembly 5, the first transmission gear 51, the first bearing 52, the first transmission screw 53, the first lead screw nut 54, the second bearing 55, the pressing body 6, the third through hole 611, the fourth through hole 612, the rack base 7, the second power transmission assembly 8, the second transmission gear 81, the third bearing 82, the second transmission screw 83, the second lead screw nut 84, the fourth bearing 85, the second motion guide assembly 9, the second upright post 91, the second guide rail 92 and the second slide block 93 are shown.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, unless otherwise specified, "a plurality" means two or more unless explicitly defined otherwise.

In the present invention, unless otherwise specifically stated or limited, the terms "mounted," "connected," "fixed," "secured," and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Examples

The double-shaft synchronous bidirectional operation press shown in fig. 1 and 2 comprises a power input and reduction device 1, a power output gear 2, a frame top seat 3, a first motion guide component 4, a first power transmission component 5, a second power transmission component 8, a second motion guide component 9, a press body 6 and a frame base 7. The power input and reduction device 1 is arranged above the rack top seat 3 and fixedly connected with the rack top seat 3 through bolts, the power output gear 2 is arranged below the power input and reduction device 1 and fixed with an output shaft of the power input and reduction device in a spline connection mode to transmit output torque passing through the reduction device, and preferably, the reduction device is a planetary reducer. First motion direction subassembly 4 sets up in one side of frame footstock, first motion direction subassembly 4 includes first stand 41, first guide rail 42, first slider 43, wherein first guide rail 42 passes through the bolt rigid coupling with first stand 41 and is in the same place, and first slider 43 constitutes linear slide with first guide rail 42. First stand 41 upper end and frame footstock 3 pass through the bolt rigid coupling together, and the lower extreme passes through the bolt rigid coupling together with frame base 7, second motion direction subassembly 9 sets up the opposite side at frame footstock 3, second motion direction subassembly 9 includes second stand 91, second guide rail 92, second slider 93, wherein second guide rail 92 and second stand 91 rigid coupling together, and linear slide is constituteed with second guide rail 92 to second slider 93. The upper end of the second upright column 91 is fixedly connected with the frame top seat 3 through a bolt, and the lower end of the second upright column is fixedly connected with the frame base 7 through a bolt. The first power transmission assembly 5 includes a first transmission gear 51, a first bearing 52, a first transmission screw 53, a first screw nut 54, and a second bearing 55, and preferably, the first bearing and the second bearing are both thrust bearings. First drive screw 53 passes first mounting hole 311 on the frame footstock 3 and forms to rotate through first bearing 52 and frame footstock 3 and is connected, first drive screw 53 top is in the same place through the mode rigid coupling of splined connection with first drive gear 51, first drive screw 53 lower extreme passes through second bearing 55 and is connected with the formation rotation of frame base 7. The first transmission gear 51 is arranged on one side of the power output gear 2 and is engaged with the gear teeth of the power output gear 2. The second power transmission assembly 8 comprises a second transmission gear 81, a third bearing 82, a second transmission screw 83, a second screw nut 84 and a fourth bearing 85, the second transmission screw 83 penetrates through a second mounting hole 312 in the rack top seat 3 and is rotatably connected with the rack top seat 3 through the third bearing 82, the preferred third bearing and the preferred fourth bearing are thrust bearings, the top end of the second transmission screw 83 is fixedly connected with the second transmission gear 81 through a spline, and the lower end of the second transmission screw 83 is rotatably connected with the rack base 7 through the fourth bearing 85. The second transmission gear 81 is arranged on the other side of the power output gear 2 and is meshed with the gear teeth of the power output gear 2. The first transmission screw 53 is parallel to the second transmission screw 83. The first spindle nut 54 forms a spindle nut connection with the first drive spindle 53. The second spindle nut 84 forms a spindle nut connection with the second drive spindle 83. The pressing body 6 is fixedly connected with the first lead screw nut 54 through a third mounting hole 611 by a bolt, the pressing body 6 is fixedly connected with the second lead screw nut 84 through a fourth mounting hole 612 by a bolt, one end of the pressing body 6 is fixedly connected with the first sliding block 43 in the first motion guide assembly 4 by a bolt, and the other end of the pressing body is fixedly connected with the second sliding block 93 in the second motion guide assembly 9 by a bolt.

In order to improve the working efficiency of the press machine, the first power transmission assembly 5 and the second power transmission assembly 8 are symmetrically arranged at the left side and the right side of the press body 6, and the rack top seat 3 and the rack base seat 7 are arranged at the upper side and the lower side of the press body 6, so that the space between the press body 6 and the rack top plate 3 and the space between the press body 6 and the rack base seat 7 can be used as the working space of the press machine, and the press body 6 can be pressed and mounted no matter moves upwards or downwards.

The specific working principle of the double-shaft synchronous bidirectional operation press machine is as follows:

the power and speed reducing device 1 provides power for the press machine and utilizes the function of the speed reducer thereof to improve the input torque, the power is synchronously transmitted to the first power transmission component 5 and the second power transmission component 8 through the power output gear 2 through gear transmission, simultaneously drives the first power transmission gear 51 in the first power transmission component 5 and the second power transmission gear 81 in the second power transmission component 8 to move, thereby driving the first driving screw 53 and the second driving screw 83 to move synchronously, wherein the first driving screw 53 and the second driving screw 83 are screws with the same pitch, thereby driving the first lead screw nut 54 and the second lead screw nut 84 to synchronously move up and down in the vertical direction, and further drives the pressing body 6 fixedly connected with the first lead screw nut 54 and the second lead screw nut 84 and the first slide block 43 and the second slide block 93 fixedly connected with the pressing body 6 to move up and down relative to the frame top base 3 and the frame base 4. The mode of driving the screw nut to synchronously move by the synchronous and reverse rotation of the double screws can reduce the stress state of a single screw, slow down the abrasion of the single screw, keep high precision for a long time, improve the rigidity of the whole press machine and ensure the precision and stability of press mounting;

the foregoing is only a preferred embodiment of the present invention, and it should be noted that modifications can be made by those skilled in the art without departing from the principle of the present invention, and these modifications should also be construed as the protection scope of the present invention.

Claims

1. The utility model provides a synchronous bidirectional operation press of biax which characterized in that: the power transmission mechanism comprises a power input and reduction device (1), a power output gear (2), a rack top seat (3), a first motion guide component (4), a first power transmission component (5), a second power transmission component (8), a second motion guide component (9), a pressing body (6) and a rack base (7). The power input and reduction device (1) is arranged above the top seat (3) of the frame and is fixedly connected with the top seat (3) of the frame. The power output gear (2) is arranged below the power input and reduction device (1) and is fixedly connected with an output shaft of the power input and reduction device (1).

2. A press with two synchronous shafts and two directions of operation as claimed in claim 1, wherein said first motion guiding assembly (4) comprises a first upright (41), a first guiding rail (42), a first sliding block (43), said first guiding rail (42) is fixed with said first upright (41), said first sliding block (43) is connected with said first guiding rail (42) and can move up and down along said first guiding rail (42). The second motion guiding assembly (9) comprises a second upright post (91), a second guide rail (92) and a second sliding block (93), the second guide rail (92) is fixedly connected with the second upright post (91), and the second sliding block (93) is connected with the second guide rail (92) and can move up and down along the second guide rail (92). The first motion guide assembly (4) and the second motion guide assembly (9) are respectively arranged on two sides of the rack top seat (3) and are arranged in parallel. The first motion guide assembly (4) is arranged on one side of the rack top seat (3) and fixedly connected with one end of the rack top seat (3) through the top end of the first upright post (41). The second motion guide assembly (9) is arranged on the other side of the rack top seat (3) and is fixedly connected with the other end of the rack top seat (3) through the top end of the second upright post (91). Frame base (7) set up in the below in the centre of first stand (41) and second stand (91), the one end of frame base (7) is in the same place with the lower extreme rigid coupling of first stand (41), and the other end is in the same place with second stand (91) lower extreme rigid coupling.

3. A biaxial synchronous bi-directional operating press as claimed in claim 1, wherein the first power transmission assembly (5) comprises a first transmission gear (51), a first bearing (52), a first transmission lead screw (53), a first lead screw nut (54) and a second bearing (55), the first transmission lead screw (53) passes through a first mounting hole (311) on the frame top base (3) and forms a rotary connection with the frame top base (3) through the first bearing (52), the top end of the first transmission lead screw (53) is fixedly connected with the first transmission gear (51), and the lower end of the first transmission lead screw (53) forms a rotary connection with the frame base (7) through the second bearing (55). The first transmission gear (51) is arranged on one side of the power output gear (2) and is meshed with the gear teeth of the power output gear (2). Second power transmission subassembly (8) include second drive gear (81), third bearing (82), second drive screw (83), second lead screw nut (84), fourth bearing (85), second drive screw (83) pass second mounting hole (312) on frame footstock (3) and form to rotate through third bearing (82) and frame footstock (3) and be connected, second drive screw (83) top is in the same place with second drive gear (81) rigid coupling, second drive screw (83) lower extreme is connected through the formation rotation of fourth bearing (85) and frame base (7). And the second transmission gear (81) is arranged on the other side of the power output gear (2) and is meshed with the gear teeth of the power output gear (2). The first transmission screw rod (53) is parallel to the second transmission screw rod (83) in axis.

4. A two-axis synchronous two-way operating press according to claim 1, said first lead screw nut (54) forming a lead screw nut connection with the first drive lead screw (53). The second lead screw nut (84) and the second transmission lead screw (83) form a lead screw nut connection. The pressing body (6) is fixedly connected with the first lead screw nut (54) through a third mounting hole (611), the pressing body (6) is fixedly connected with the second lead screw nut (84) through a fourth mounting hole (612), one end of the pressing body (6) is fixedly connected with a first sliding block (43) in the first motion guide assembly (4), and the other end of the pressing body is fixedly connected with a second sliding block (93) in the second motion guide assembly (9).