Mechanical multi-connecting-rod press machine

Abstract

The invention discloses a mechanical multi-connecting-rod press machine, and relates to the technical field of press machines. Comprising a press machine body, and a bearing seat is detachably mounted on the press machine body; a vertical slide rail is mounted on the mounting frame; the two pressing seats are connected into the two vertical sliding rails in an up-down sliding mode correspondingly. The turntable is rotatably mounted on the mounting frame through a shaft, and an upper ball seat is mounted on the outer wall of the bottom of the turntable. According to the invention, the replaceable pressing block, the replaceable bearing seat, the two pressing seats and the connecting piece for splicing connection are arranged; according to actual process requirements, the two pressing seats can be spliced and connected, and the corresponding pressing blocks and the corresponding bearing seats are installed, so that the two pressing seats form a whole to synchronously move, and large-size products are machined; besides, the connecting pieces can be detached, the corresponding pressing blocks and the corresponding bearing bases can be installed, the two pressing bases move independently, or only one pressing base is used for operation, so that products with small sizes can be machined conveniently, and the use flexibility is high.

Description

Technical Field

[0001] The invention relates to the technical field of presses, and in particular to a mechanical multi-link press. Background Art

[0002] In modern industrial production, presses are one of the important equipment for material processing and forming. Traditional mechanical presses usually include a fixed press body, a slide, a drive device and other main components. The drive device allows the slide to apply pressure to the workpiece along a specific path to complete processes such as stamping, cutting, and bending.

[0003] In the prior art, such as the application scheme of Chinese patent application No. 201580056723.6, a press drive device and a press for a press are disclosed, wherein the press drive device has a connecting rod, and the connecting rod has a driving end and an output end. The output end is preferably coupled to the elbow hinge of the elbow lever transmission mechanism. The drive shaft is rotatably supported around the axis and has a connecting rod support arranged eccentrically relative to the axis. The driving end of the connecting rod is supported at the connecting rod support. There are at least a first drive housing and a second drive housing on the opposite sides of the connecting rod support in the axial direction. The drive shaft extends into the two drive housings. An electric drive motor is arranged in at least one of the drive housings. The press in the above document has the following shortcomings: although it has processing capabilities, it is not flexible enough in use, and the pressing structure cannot be structurally adjusted or differentially controlled according to actual needs, which needs to be improved. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings in the prior art and to propose a mechanical multi-link press.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions: A mechanical multi-link press, comprising: A press body, on which a bearing seat is detachably mounted; A mounting frame, on which a vertical slide rail is mounted; Press seats, two press seats are respectively slidably connected up and down in two vertical slide rails; The turntable is rotatably mounted on the mounting frame through an axis, and an upper ball seat is mounted on the outer wall of the bottom of the turntable, and the upper ball seat is eccentrically arranged; A lower ball seat, which is installed on the outer wall of the top of the pressure seat; A ball head rod, both ends of which are provided with spherical heads, and the two spherical heads of the ball head rod are movably installed in the upper ball seat and the lower ball seat respectively; based on the rotation of the turntable, the ball head rod is used to realize the lifting and lowering control of the pressure seat; A rotation control mechanism, the rotation control mechanism is used to control the rotation of two turntables; A connecting piece, which is detachably installed between the two pressing seats, and the two pressing seats are spliced ​​and connected based on the connecting piece; The pressing block is detachably mounted on the outer wall of the bottom of the pressing seat, and both the pressing block and the bearing seat are replaceable.

[0006] As a preferred embodiment of the present invention: the rotation control mechanism includes: A fixing frame, the fixing frame is installed on the top outer wall of the mounting frame, and a rotation control motor is installed on the fixing frame; A driving gear, the shaft of which is drivingly connected to the output end of the rotation control motor; A linkage member, which is rotatably mounted on a fixed frame and meshes with a driving gear; A first rotating wheel is installed on the shaft of one of the rotating disks, and a first convex tooth distributed circumferentially is arranged on the outer side of the first rotating wheel, and the first convex tooth is meshed with the driving gear. A second rotating wheel is installed on the shaft of the other rotating disk, and a second convex tooth distributed circumferentially is arranged on the outer side of the second rotating wheel, and the second convex tooth is meshed with the linkage member.

[0007] As a preferred embodiment of the present invention: the connecting piece is an I-shaped structure, and a groove matching the connecting piece is provided on one adjacent side of the two pressure seats, and the connecting piece is installed in the grooves of the two pressure seats by bolts; The linkage comprises: A transmission gear, the transmission gear is rotatably mounted on a fixed frame through a shaft; A rotating column, the rotating column is mounted on the shaft of the transmission gear; A driven gear, the driven gear is rotatably mounted on the mounting frame through a shaft; A sleeve, the sleeve is mounted on the shaft of the driven gear, and the sleeve is rotatably mounted on the outside of the rotating column; The rotating column and the sleeve are provided with matching slots, and an insert block is detachably installed in the slot.

[0008] As a preferred embodiment of the present invention, matching scale lines are arranged on the outer sides of the sleeve and the rotating column.

[0009] As a preferred embodiment of the present invention: a mounting groove is provided on the press body, a positioning block is fixed in the mounting groove, and the distance from the outer wall of one side of the positioning block to the inner wall of one side of the mounting groove is adapted to the width of the bearing seat; The bearing seat and the press body are provided with matching positioning holes, and a positioning rod is detachably installed in the positioning hole.

[0010] As a preferred embodiment of the present invention: a material unloading and pushing mechanism is installed on both sides of the press body, and the material unloading and pushing mechanism includes: Translation seat, which is horizontally movable and installed on both sides of the press body; A translation driving unit, the translation driving unit is used to drive the translation seat to translate; A rotation drive motor is installed inside the translation seat; A rotating frame, the shaft of which is drivingly connected to the output end of the rotating drive motor; An annular frame, the annular frame is installed outside the rotating frame; Arc-shaped shifting racks, wherein a plurality of arc-shaped shifting racks are evenly distributed on the outside of the annular rack, and the arc-shaped shifting racks distributed on the circumference are arranged in a whirlwind shape; An electric push rod is installed on the press body, and the top end of the electric push rod is flush with the bearing seat.

[0011] As a preferred embodiment of the present invention: the translation driving unit includes: Electric telescopic cylinder, which is installed on the side of the press body, and the output end of the electric telescopic cylinder is fixed on the translation seat; The guide rod is fixed to the outer wall of one side of the press body, and the translation seat is slidably connected to the outer wall of the guide rod.

[0012] As a preferred embodiment of the present invention: an arc-shaped slide plate is movably installed in the arc-shaped shifting frame through a built-in spring, an end rod is fixed to one end of the arc-shaped slide plate located on the inner side of the annular frame, and a convex ball is fixed to the end of the end rod; a pushing part for pushing the arc-shaped slide plate outward is arranged below the end rod.

[0013] As a preferred embodiment of the present invention: the pushing part includes: An electric lifting cylinder, which is fixed inside the translation seat; A connecting frame, the connecting frame is fixed to the output end of the electric lifting cylinder; The extrusion platform is installed on the top of the connecting frame. The top of the extrusion platform is provided with an annular arc surface, and the convex ball at the end of the end rod is located on the moving path of the extrusion platform.

[0014] As a preferred embodiment of the present invention: a first discharging slide is fixed to an outer wall of one side of the press body, and second discharging slides are installed on both sides of the first discharging slide, the second discharging slide is located on the moving path of the arc-shaped shifting frame, and the first discharging slide is located on the moving path of the end of the arc-shaped slide plate in the extended state.

[0015] The beneficial effects of the present invention are: The present invention provides replaceable pressing blocks and supporting seats, as well as two pressing seats and connecting pieces for splicing and connecting. According to actual process requirements, the two pressing seats can be spliced ​​and connected, and corresponding pressing blocks and supporting seats can be installed so that the two pressing seats move synchronously as a whole, thereby realizing the processing of large-sized products. In addition, the connecting pieces can be removed, and corresponding pressing blocks and supporting seats can be installed so that the two pressing seats can move independently, or only one pressing seat can be used for operation, so as to facilitate the processing of smaller-sized products, and the use flexibility is high.

[0016] The present invention sets a linkage part, and when two pressure seats are spliced ​​and used through a connecting piece, the plug block is installed in the slot of the sleeve and the rotating column to realize the transmission connection between the transmission gear and the driven gear, so that the two turntables can be driven to move synchronously based on the operation of the rotation control motor and the transmission of each tooth, thereby realizing synchronous control of the pressure seat.

[0017] When the pressure seat of the present invention is used alone, the insert block can be removed, and when the driving gear rotates, the sleeve is allowed to idle outside the rotating column, thereby releasing the transmission relationship to meet processing requirements; in addition, the insert block can be installed after the rotating column and the sleeve have rotated relative to each other for several weeks, thereby realizing differential movement of the two pressure seats.

[0018] The present invention provides a material unloading pushing mechanism, which can work based on a rotating drive motor, drive the rotating frame to rotate, and then drive each arc-shaped shifting frame to rotate, thereby realizing the shifting of the product and realizing material unloading.

[0019] The present invention, by providing structures such as a pushing part and an arc-shaped slide plate, can work based on an electric lifting cylinder to push the extrusion table upward, thereby utilizing the annular inclined surface of the extrusion table to extrude each convex ball, causing one end of the arc-shaped slide plate to move away from the annular frame, thereby increasing the shifting range. The arc-shaped slide plates located on both sides of the press body cooperate to achieve the shifting and unloading of large-sized products. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic structural diagram of a mechanical multi-link press proposed by the present invention; Figure 2 This is a structural schematic diagram of a mechanical multi-link press proposed by the present invention from another angle; Figure 3 A schematic diagram of the structure of a rotary plate and a pressing block of a mechanical multi-link press proposed by the present invention; Figure 4 A schematic diagram of the structure of a mechanical multi-link press rotation control mechanism proposed by the present invention; Figure 5 This is a structural schematic diagram of a mechanical multi-link press bearing base installed on a press body proposed by the present invention; Figure 6This is a structural schematic diagram of a mechanical multi-link press blanking and pushing mechanism proposed by the present invention; Figure 7 The present invention provides a schematic structural diagram of the bottom of an extrusion platform of a mechanical multi-link press.

[0021] In the figure: 1 press body, 2 mounting frame, 3 vertical slide rail, 4 fixing frame, 5 second rotating wheel, 6 rotation control motor, 7 first rotating wheel, 8 ball head rod, 9 pressing seat, 10 arc-shaped shifting frame, 11 first discharging slide, 12 second discharging slide, 13 lower ball seat, 14 pressing block, 15 connecting piece, 16 upper ball seat, 17 turntable, 18 driving gear, 19 driven gear, 20 sleeve, 21 plug block, 22 scale line, 23 rotating column, 24 transmission gear, 25 guide rod, 26 translation seat, 27 electric telescopic cylinder, 28 positioning rod, 29 positioning block, 30 annular frame, 31 arc-shaped slide plate, 32 electric ejector rod, 33 bearing seat, 34 rotating frame, 35 end rod, 36 extrusion table, 37 electric lifting cylinder, 38 rotation driving motor, 39 connecting frame. DETAILED DESCRIPTION

[0022] The technical solution of the present invention is further described in detail below in conjunction with specific implementation methods.

[0023] Embodiments of the present invention are described in detail below, examples of which 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 only used to explain the present invention, and cannot be understood as limiting the present invention.

[0024] Embodiment 1: A mechanical multi-link press, such as Figure 1-7 As shown, including: A press body 1, on which a bearing seat 33 is detachably mounted; A mounting frame 2, on which a vertical slide rail 3 is mounted; A press seat 9, wherein two press seats 9 are respectively connected to the two vertical slide rails 3 by sliding up and down; A turntable 17, the turntable 17 is rotatably mounted on the mounting frame 2 through an axis, an upper ball seat 16 is mounted on the outer wall of the bottom of the turntable 17, and the upper ball seat 16 is eccentrically arranged; A lower ball seat 13, which is mounted on the top outer wall of the pressure seat 9; The ball head rod 8 has spherical heads at both ends, and the two spherical heads of the ball head rod 8 are movably installed in the upper ball seat 16 and the lower ball seat 13 respectively; based on the rotation of the turntable 17, the ball head rod 8 is used to realize the lifting and lowering control of the pressure seat 9; A rotation control mechanism, which is used to control the rotation of the two rotating disks 17; A connecting piece 15, which is detachably installed between the two pressing seats 9, and the two pressing seats 9 are spliced ​​and connected based on the connecting piece 15; The pressing block 14 is detachably mounted on the outer wall of the bottom of the pressing seat 9, and the pressing block 14 and the bearing seat 33 are both replaceable; By providing a replaceable pressing block 14 and a bearing seat 33, as well as two pressing seats 9 and a connecting piece 15 for splicing and connecting, the two pressing seats 9 can be spliced ​​and connected according to actual process requirements, and the corresponding pressing block 14 and bearing seat 33 can be installed, so that the two pressing seats 9 can move synchronously as a whole, thereby realizing the processing of large-sized products; In addition, the connecting piece 15 can be removed and the corresponding pressing block 14 and the bearing seat 33 can be installed to allow the two pressing seats 9 to move independently, or only one pressing seat 9 can be used for operation, so as to facilitate the processing of smaller-sized products and have high flexibility in use.

[0025] In order to facilitate the control of the rotation of the turntable 17; Figure 3 , Figure 4 As shown, the rotation control mechanism includes: A fixing frame 4, the fixing frame 4 is mounted on the top outer wall of the mounting frame 2, and a rotation control motor 6 is mounted on the fixing frame 4; A driving gear 18, the shaft of which is drivingly connected to the output end of the rotation control motor 6; A linkage member, which is rotatably mounted on the fixed frame 4 and meshes with the driving gear 18; A first rotating wheel 7 is installed on the axis of one of the rotating disks 17, and a first convex tooth distributed circumferentially is arranged on the outer side of the first rotating wheel 7, and the first convex tooth is meshed with the driving gear 18. A second rotating wheel 5 is installed on the axis of the other rotating disk 17, and a second convex tooth distributed circumferentially is arranged on the outer side of the second rotating wheel 5, and the second convex tooth is meshed with the linkage member.

[0026] In order to facilitate splicing and disassembly; Figure 3 , Figure 4 As shown, the connecting member 15 is an I-shaped structure, and a groove adapted to the connecting member 15 is opened on the adjacent side of the two pressing seats 9, and the connecting member 15 is installed in the grooves of the two pressing seats 9 by bolts; The linkage comprises: A transmission gear 24, the transmission gear 24 is rotatably mounted on the fixing frame 4 via a shaft; A rotating column 23, the rotating column 23 is mounted on the shaft of the transmission gear 24; A driven gear 19, the driven gear 19 is rotatably mounted on the mounting frame 2 via a shaft; The sleeve 20 is mounted on the shaft of the driven gear 19 and is rotatably mounted on the outer side of the rotating column 23; The rotating column 23 and the sleeve 20 are provided with matching slots, and an insert block 21 is detachably installed in the slot; By setting a linkage member, when the two pressing seats 9 are spliced ​​and used through the connecting member 15, the insert block 21 is installed in the slot of the sleeve 20 and the rotating column 23 to realize the transmission connection between the transmission gear 24 and the driven gear 19, so that the two rotating disks 17 can be driven to move synchronously based on the operation of the rotation control motor 6 and the transmission of each tooth, thereby realizing the synchronous control of the pressing seat 9; When the pressure seat 9 is used alone, the insert block 21 can be removed, and when the driving gear 18 rotates, the sleeve 20 is allowed to idle outside the rotating column 23, releasing the transmission relationship to meet processing requirements; in addition, the insert block 21 can be installed after the rotating column 23 and the sleeve 20 have rotated relative to each other for several weeks, thereby realizing differential movement of the two pressure seats 9.

[0027] To improve practicality; Figure 4 As shown, the outer sides of the sleeve 20 and the rotating column 23 are provided with matching scale lines 22; By setting the scale line 22, the alignment of the sleeve 20 and the rotating column 23 can be better distinguished to facilitate installation.

[0028] In order to facilitate the positioning of the bearing seat 33; Figure 5 As shown, the press body 1 is provided with a mounting groove, in which a positioning block 29 is fixed, and the distance from the outer wall of one side of the positioning block 29 to the inner wall of one side of the mounting groove is adapted to the width of the bearing seat 33; The bearing seat 33 and the press body 1 are provided with matching positioning holes, and a positioning rod 28 is detachably installed in the positioning hole; By providing the bearing seat 33 , the positioning block 29 and the positioning rod 28 , the bearing seat 33 can be quickly assembled and unassembled and positioned, thereby improving practicality.

[0029] Embodiment 2: In order to facilitate material unloading, this embodiment makes the following improvements on the basis of embodiment 1: a material unloading pushing mechanism is installed on both sides of the press body 1, and the material unloading pushing mechanism includes: The translation seat 26 is horizontally movably installed on both sides of the press body 1; A translation driving unit, which is used to drive the translation seat 26 to translate; A rotation drive motor 38, the rotation drive motor 38 is installed inside the translation seat 26; A rotating frame 34, the shaft of which is drivingly connected to the output end of a rotating drive motor 38; The annular frame 30 is installed outside the rotating frame 34; The arc-shaped shifting rack 10, wherein a plurality of arc-shaped shifting racks 10 are evenly distributed on the outside of the annular rack 30, and the arc-shaped shifting racks 10 distributed on the circumference are arranged in a whirlwind shape; An electric push rod 32 is installed on the press body 1, and the top end of the electric push rod 32 is flush with the bearing seat 33; By setting up a material unloading pushing mechanism, it is possible to work based on the rotation drive motor 38, drive the rotating frame 34 to rotate, and then drive each arc-shaped shifting frame 10 to rotate, so as to realize the shifting of the product and thus realize unloading.

[0030] In order to facilitate the driving of the translation seat 26 translation; Figure 6 As shown, the translation driving unit includes: An electric telescopic cylinder 27, which is installed on the side of the press body 1, and the output end of the electric telescopic cylinder 27 is fixed on the translation seat 26; The guide rod 25 is fixed to the outer wall of one side of the press body 1 , and the translation seat 26 is slidably connected to the outer wall of the guide rod 25 .

[0031] In order to facilitate the movement of large-sized products; Figure 6 , Figure 7 As shown, an arc-shaped slide plate 31 is movably installed in the arc-shaped shifting frame 10 through a built-in spring, and an end rod 35 is fixed to one end of the arc-shaped slide plate 31 located on the inner side of the ring frame 30, and a convex ball is fixed to the end of the end rod 35; a pushing part for pushing the arc-shaped slide plate 31 outward is arranged below the end rod 35.

[0032] In order to facilitate the adjustment of the position of the arc-shaped slide plate 31; Figure 6 As shown, the pushing portion includes: An electric lifting cylinder 37, the electric lifting cylinder 37 is fixed to the inner side of the translation seat 26; A connecting frame 39, the connecting frame 39 is fixed to the output end of the electric lifting cylinder 37; The extrusion platform 36 is installed on the top of the connecting frame 39. The top of the extrusion platform 36 is provided with an annular arc surface, and the convex ball at the end of the end rod 35 is located on the moving path of the extrusion platform 36; By setting up structures such as the pushing part and the arc-shaped slide plate 31, the extrusion table 36 can be pushed upward based on the operation of the electric lifting cylinder 37, so that each convex ball can be squeezed by utilizing the annular inclined surface of the extrusion table 36, so that one end of the arc-shaped slide plate 31 moves away from the annular frame 30, thereby increasing the shifting range. The arc-shaped slide plates 31 located on both sides of the press body 1 cooperate to realize the shifting and unloading of large-sized products.

[0033] In order to facilitate product output; Figure 2As shown, a first discharging slide 11 is fixed to an outer wall of one side of the press body 1, and second discharging slides 12 are installed on both sides of the first discharging slide 11. The second discharging slide 12 is located on the moving path of the arc-shaped shifting frame 10, and the first discharging slide 11 is located on the moving path of the end of the arc-shaped slide plate 31 in the extended state.

[0034] 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 according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A mechanical multi-link press, characterized in that: include: A press machine body (1), wherein a bearing seat (33) is detachably mounted on the press machine body (1); A mounting frame (2), wherein a vertical slide rail (3) is mounted on the mounting frame (2); A pressure seat (9), wherein the two pressure seats (9) are respectively connected to the two vertical slide rails (3) in a sliding manner up and down; A turntable (17), the turntable (17) is rotatably mounted on the mounting frame (2) via a shaft, an upper ball seat (16) is mounted on the outer wall of the bottom of the turntable (17), and the upper ball seat (16) is eccentrically arranged; A lower ball seat (13), the lower ball seat (13) is mounted on the top outer wall of the pressure seat (9); A ball head rod (8), both ends of the ball head rod (8) are provided with spherical heads, and the two spherical heads of the ball head rod (8) are movably installed in the upper ball seat (16) and the lower ball seat (13) respectively; based on the rotation of the turntable (17), the ball head rod (8) is used to realize the lifting and lowering control of the pressure seat (9); A rotation control mechanism, the rotation control mechanism is used to control the rotation of the two rotating disks (17); A connecting piece (15), the connecting piece (15) is detachably mounted between the two pressing seats (9), and the two pressing seats (9) are spliced ​​and connected based on the connecting piece (15); The pressing block (14) is detachably mounted on the outer wall of the bottom of the pressing seat (9), and the pressing block (14) and the bearing seat (33) are both replaceable.

2. A mechanical multi-link press according to claim 1, characterized in that: The rotation control mechanism comprises: A fixing frame (4), the fixing frame (4) being mounted on the top outer wall of the mounting frame (2), and a rotation control motor (6) being mounted on the fixing frame (4); A driving gear (18), the shaft of which is drivingly connected to the output end of the rotation control motor (6); A linkage member, which is rotatably mounted on a fixed frame (4) and meshes with a driving gear (18); A first rotating wheel (7) is mounted on the shaft of one rotating disk (17), and first convex teeth distributed circumferentially are arranged on the outer side of the first rotating wheel (7), and the first convex teeth mesh with the driving gear (18); a second rotating wheel (5) is mounted on the shaft of the other rotating disk (17), and second convex teeth distributed circumferentially are arranged on the outer side of the second rotating wheel (5), and the second convex teeth mesh with the linkage member.

3. A mechanical multi-link press according to claim 2, characterized in that: The connecting piece (15) is in an I-shaped structure, and a groove matching the connecting piece (15) is provided on one adjacent side of the two pressure seats (9), and the connecting piece (15) is installed in the grooves of the two pressure seats (9) by means of bolts; The linkage comprises: A transmission gear (24), the transmission gear (24) being rotatably mounted on the fixed frame (4) via a shaft; A rotating column (23), the rotating column (23) is mounted on the shaft of the transmission gear (24); A driven gear (19), the driven gear (19) being rotatably mounted on the mounting frame (2) via a shaft; A sleeve (20), the sleeve (20) is mounted on the shaft of the driven gear (19), and the sleeve (20) is rotatably mounted on the outside of the rotating column (23); The rotating column (23) and the sleeve (20) are provided with matching slots, and an insert block (21) is detachably installed in the slot.

4. A mechanical multi-link press according to claim 3, characterized in that: Matching scale lines (22) are provided on the outside of the sleeve (20) and the rotating column (23).

5. A mechanical multi-link press according to claim 4, characterized in that: The press machine body (1) is provided with a mounting groove, in which a positioning block (29) is fixed, and the distance between an outer wall of one side of the positioning block (29) and an inner wall of one side of the mounting groove is adapted to the width of the bearing seat (33); The bearing seat (33) and the press body (1) are provided with matching positioning holes, and a positioning rod (28) is detachably installed in the positioning hole.

6. A mechanical multi-link press according to any one of claims 1 to 5, characterized in that: A material unloading pushing mechanism is installed on both sides of the press body (1), and the material unloading pushing mechanism comprises: A translation seat (26), the translation seat (26) is horizontally movably installed on both sides of the press body (1); A translation drive unit, the translation drive unit is used to drive the translation seat (26) to translate; A rotation drive motor (38), the rotation drive motor (38) is installed inside the translation seat (26); A rotating frame (34), wherein the shaft of the rotating frame (34) is drivingly connected to the output end of the rotating drive motor (38); An annular frame (30), the annular frame (30) being mounted on the outside of the rotating frame (34); An arc-shaped shifting frame (10), wherein a plurality of arc-shaped shifting frames (10) are evenly distributed circumferentially and arranged outside the annular frame (30), and the circumferentially distributed arc-shaped shifting frames (10) are arranged in a whirlwind shape; An electric push rod (32) is installed on the press machine body (1), and the top end of the electric push rod (32) is flush with the bearing seat (33).

7. A mechanical multi-link press according to claim 6, characterized in that: The translation driving unit comprises: An electric telescopic cylinder (27), the electric telescopic cylinder (27) being mounted on a side of the press body (1), and an output end of the electric telescopic cylinder (27) being fixed on a translation seat (26); A guide rod (25) is fixed to an outer wall of one side of a press body (1), and a translation seat (26) is slidably connected to the outer wall of the guide rod (25).

8. A mechanical multi-link press according to claim 7, characterized in that: An arc-shaped slide plate (31) is movably mounted in the arc-shaped shifting frame (10) via an internal spring, an end rod (35) is fixed to one end of the arc-shaped slide plate (31) located inside the annular frame (30), and a convex ball is fixed to the end of the end rod (35); a pushing portion for pushing the arc-shaped slide plate (31) outward is arranged below the end rod (35).

9. A mechanical multi-link press according to claim 8, characterized in that: The driving part comprises: An electric lifting cylinder (37), the electric lifting cylinder (37) being fixed on the inner side of the translation seat (26); A connecting frame (39), the connecting frame (39) being fixed to an output end of the electric lifting cylinder (37); The extrusion platform (36) is mounted on the top of the connection frame (39). The top of the extrusion platform (36) is provided with an annular arc surface. The convex ball at the end of the end rod (35) is located on the moving path of the extrusion platform (36).

10. A mechanical multi-link press according to claim 9, characterized in that: A first discharge slide (11) is fixed to an outer wall of one side of the press body (1), and second discharge slides (12) are installed on both sides of the first discharge slide (11). The second discharge slide (12) is located on the moving path of the arc-shaped shifting frame (10), and the first discharge slide (11) is located on the moving path of the end of the arc-shaped slide plate (31) in the extended state.

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