CN115000779A

CN115000779A - High-precision compensation type terminal bending mechanism

Info

Publication number: CN115000779A
Application number: CN202210725587.7A
Authority: CN
Inventors: 王声海; 孙成龙
Original assignee: Hangzhou Amphenol Jet Interconnect Technology Co Ltd
Current assignee: Hangzhou Amphenol Jet Interconnect Technology Co Ltd
Priority date: 2022-06-24
Filing date: 2022-06-24
Publication date: 2022-09-02

Abstract

The invention discloses a high-precision compensation type terminal bending mechanism, which relates to the field of terminal bending processing and comprises a base, a product positioning and lifting module and a servo rotary bending module, wherein a first linear slide rail is arranged on the product positioning and lifting module and used for slidably mounting a first sliding table, a first lifting assembly is arranged on the first sliding table, a sliding positioning assembly is arranged on the first lifting assembly, a product bearing seat is arranged at the front part of the sliding positioning assembly, the first lifting assembly drives the sliding positioning assembly and the product bearing seat to move up and down along the vertical direction, and the sliding positioning assembly is used for driving the product bearing seat to slide along the horizontal direction; the servo rotary bending module is provided with a second linear slide rail for slidably mounting a second sliding table, the second sliding table is provided with a second lifting assembly with a rotary bending assembly, and the rotary bending assembly is connected with a driving rotary swinging block. According to the invention, through three servo linkage controls, dynamic compensation is carried out on semi-finished products with different incoming materials, so that the trend of the bending point and the bending angle of the final product is stable.

Description

High-precision compensation type terminal bending mechanism

Technical Field

The invention relates to the field of terminal bending processing, in particular to a high-precision compensation type terminal bending mechanism.

Background

A terminal is a common electrical wiring component, which is gradually and widely used in various fields, including signal terminals, power terminals, connection terminals, etc., which are connection terminals in an electrical circuit. The terminals of some electronic components need to be used after being bent, and at present, when the terminals are bent, a semi-finished product supplied from a previous process is bent and adjusted by a bending mechanism to obtain a final finished product. However, due to the uneven technological requirements of the previous process, the supplied materials of the semi-finished product are differentiated, and the bending points and the bending angles cannot be dynamically processed by using the existing bending mechanism, so that the strict requirements on the bending precision and the bending consistency are met.

Disclosure of Invention

The invention aims to overcome the defects in the prior art and provide a high-precision compensation type terminal bending mechanism, which dynamically compensates semi-finished products of different materials through three servo linkage controls, so that the bending point and bending angle trends of final products are stable.

The purpose of the invention is achieved by the following technical scheme: the high-precision compensation type terminal bending mechanism comprises a base, a first sliding table, a second sliding table, a product positioning and lifting module and a servo rotary bending module, wherein the product positioning and lifting module is fixed on one side of the base, and the servo rotary bending module is fixed on the other side of the base;

the product positioning and lifting module is horizontally provided with a first linear slide rail along the length direction of the base, the first slide table is arranged on the first linear slide rail in a sliding mode, a first lifting assembly is arranged on the first slide table, a sliding positioning assembly is arranged on the first lifting assembly, a product bearing seat used for placing a product is arranged at the front part of the sliding positioning assembly, the first lifting assembly drives the sliding positioning assembly and the product bearing seat to move up and down along the vertical direction, positioning of the product in the vertical direction is achieved, the sliding positioning assembly is used for driving the product bearing seat to slide along the horizontal direction, and fine positioning of the product in the horizontal direction is achieved;

the servo rotary bending module is provided with a second linear slide rail along the length direction of the base, the second sliding table is arranged on the second linear slide rail in a sliding mode, a second lifting assembly is arranged on the second sliding table, a rotary bending assembly is arranged on the second lifting assembly, the second lifting assembly is used for driving the rotary bending assembly to move up and down along the vertical direction, the rotary bending assembly is connected with a driving rotary swinging block, and a product is subjected to rotary bending through the rotary swinging block.

As a further technical scheme, the first lifting assembly comprises a first lifting cylinder, a track block, a lifting seat, a track block and a pin shaft, wherein the track block is arranged at the bottom of the sliding positioning assembly in a sliding manner through the track block, and the first lifting cylinder fixed at the bottom of the sliding positioning assembly is connected with the track block to drive the track block to slide along the track block; the two lifting seats are symmetrically arranged on two sides of the track block, the lifting seats are movably supported between the bottom of the sliding positioning assembly and the first sliding table through guide posts, track grooves are obliquely formed in the track block and are used for penetrating through pin shafts, the pin shafts slide along the track grooves, and two ends of each pin shaft are respectively fixed with one lifting seat correspondingly, so that the sliding positioning assembly can perform lifting motion relative to the first sliding table.

As a further technical scheme, the sliding positioning assembly comprises a slider mechanism, a positioning cylinder and a lifting plate, the slider mechanism is fixed on the lifting plate, the product bearing is arranged on the lifting plate at the front end of the slider mechanism, the positioning cylinder is arranged on the lifting plate at the rear end of the slider mechanism, and the positioning cylinder is used for driving the slider mechanism to horizontally position a product in the product bearing; the lifting plate is driven to lift by the first lifting assembly.

As a further technical scheme, the sliding block mechanism comprises a fixed block, a driving block and a fine positioning sliding block, the fixed block is mounted on the lifting plate, the driving block is connected and driven by the positioning cylinder, one end of the fine positioning sliding block is fixed on the driving block, the other end of the fine positioning sliding block penetrates through the fixed block and faces the product bearing seat for finely positioning a product on the product bearing seat, and the fine positioning sliding block slides relative to the fixed block; an upper cover plate is arranged on the surface of the fixed block above the fine positioning sliding block, a limiting block is arranged at one end, facing the driving block, of the fine positioning sliding block, and the limiting block is used for being matched with the upper cover plate so as to limit the stroke of the fine positioning sliding block; guide plates are arranged on two sides of the driving block, penetrate through the fixing block and are blocked by the baffle, and the guide plates slide relative to the fixing block.

As a further technical scheme, the second lifting assembly comprises a second lifting cylinder and an inclined slider lifting mechanism, and the second lifting cylinder is fixed on the second sliding table; the inclined sliding block lifting mechanism comprises a supporting plate, an inclined sliding block and a lifting plate, the supporting plate is fixed on the second sliding table, the inclined sliding block driven by the second lifting cylinder is installed on the supporting plate in a sliding mode, and the lifting plate is arranged above the supporting plate and is in inclined surface fit transmission with the inclined sliding block, so that the rotary bending assembly fixed on the lifting plate can move up and down relative to the supporting plate.

As a further technical scheme, the rotary bending assembly comprises a rotary driving servo motor, a support frame and motor mounting plates, the two motor mounting plates are symmetrically arranged on the second lifting assembly, the rotary driving servo motor is supported on one motor mounting plate and is used for connecting and driving the rotary swinging block, the other end of the rotary swinging block is supported on the other motor mounting plate by a driven shaft, and the rotary swinging block is used for driving the bending block fixed on the rotary swinging block to rotate; the support frame is fixed on the base between product location lifting module and the servo rotatory module of bending, is fixed with the terminal constant head tank at the support frame top, and the terminal constant head tank is located product bearing top, and the terminal of product stretches out from a plurality of terminal hole departments of seting up on the terminal constant head tank to towards rotatory pendulum piece, set up the breach that suits with terminal constant head tank surface on the piece of bending.

As a further technical scheme, a limiting plate is fixed between the two motor mounting plates, and the rotary swing block rotates within the range of 0-90 degrees between the limiting plate and the support frame; the rotary driving servo motor is decelerated through a right-angle precision servo speed reducer and supported on the motor mounting plate.

As a further technical scheme, the bottom of the product positioning and lifting module is fixed on the base through a first bottom plate, and the bottom of the servo rotary bending module is fixed on the base through a second bottom plate.

As a further technical scheme, the first sliding table is driven by a first lead screw and a first servo motor which are arranged on the base.

As a further technical scheme, the second sliding table is driven by a second lead screw and a second servo motor which are arranged on the base.

The invention has the beneficial effects that:

1. the three servo cylinders and the auxiliary cylinder are controlled in time sequence to compensate the bending angle and the bending point of the product, so that the trend of the product is stable;

2. the lead screw is matched with the linear slide rail to form a displacement platform (sliding table), and the lifting cylinder and the rotary bending servo are fixedly arranged on the displacement platform to realize reciprocating movement to finely adjust the position of a bending point;

3. the rotary swing block is driven by the servo speed reducer module and rotates by taking the output shaft of the speed reducer as the center of a circle; the inclined sliding block realizes module lifting by utilizing the movement of the cylinder, and the positioning cylinder drives the sliding positioning module to position and clamp a product;

4. the material difference of the semi-finished product is dynamically complemented back to the bending point and the bending angle of the semi-finished product through a servo system, so that the bending consistency of the product is finally achieved, the production process requirement of the front-section semi-finished product is effectively reduced, the production feedback is good, and the expected purpose is achieved.

Drawings

Fig. 1 is a schematic perspective view 1 of the present invention.

Fig. 2 is a schematic perspective view of the present invention 2.

Fig. 3 is a schematic front view of the present invention.

Fig. 4 is a schematic top view of the present invention.

Fig. 5 is a sectional view a-a of fig. 4.

Fig. 6 is a sectional view B-B of fig. 4.

Fig. 7 is a schematic perspective view of a servo rotary bending module according to the present invention.

FIG. 8 is a schematic cross-sectional view of a servo rotary bending module according to the present invention.

FIG. 9 is a schematic diagram of a right-view structure of the servo rotary bending module according to the present invention.

Fig. 10 is a schematic perspective view of a product positioning and lifting module according to the present invention.

Fig. 11 is a schematic front view of a product positioning and lifting module according to the present invention.

Fig. 12 is a schematic perspective view of the slide positioning assembly of the present invention.

Fig. 13 is a schematic right-view structural diagram of the product positioning and lifting module of the present invention.

Description of reference numerals: the device comprises a first lifting assembly 1, a product bearing seat 2, a sliding block mechanism 3, a positioning cylinder 4, a first lifting cylinder 5, a first lead screw 6, a first servo motor 7, a first linear slide rail 8, a right-angle precise servo speed reducer 9, a rotary swing block 10, a rotary driving servo motor 11, an inclined sliding block lifting mechanism 12, a second lifting cylinder 13, a second lead screw 14, a second servo motor 15, a second linear slide rail 16, a base 17, a first sliding table 18, a product 19, a second sliding table 20, a track block 21, a lifting seat 22, a track block 23, a guide column 24, a track groove 25, a pin shaft 26, a lifting plate 27, a fixed block 28, a driving block 29, a precise positioning sliding block 30, an upper cover plate 31, a limiting block 32, a guide plate 33, a baffle plate 34, a supporting plate 35, a supporting frame 36, a motor mounting plate 37, a bending block 38, a terminal positioning groove 39, a terminal hole 40, a notch 41, a driven shaft 42, a limiting plate 43, a positioning groove 39, a first lead screw, a second linear slide rail 15, a second linear slide rail, a second linear guide 20, a second linear guide plate, a third linear guide 20, a second linear guide plate, a third linear guide plate, a second linear guide plate, a third linear guide plate, a slant slide 44, a lifting plate 45, a first bottom plate 46, and a second bottom plate 47.

Detailed Description

The invention will be described in detail below with reference to the following drawings:

example (b): as shown in attached figures 1-12, the high-precision compensation type terminal bending mechanism comprises a base 17, a first sliding table 18, a second sliding table 20, a product positioning lifting module and a servo rotary bending module. As shown in fig. 1 and 2, the bottom of the product positioning and lifting module is fixed to the right side of the base 17 through a first bottom plate 46, and the bottom of the servo rotary bending module is fixed to the left side of the base 17 through a second bottom plate 47.

Referring to fig. 3, 10 ~ 12, the length direction level along base 17 on the product location lifting module sets up first linear slide rail 8, first slip table 18 passes through slider slidable mounting on first linear slide rail 8, and first slip table 18 is through setting up first lead screw 6 and the servo drive of first servo motor 7 on first bottom plate 46 to the position of the relative servo rotation of preliminary adjustment product location lifting module of bending. Further, the first lead screw 6 is fixed with the bottom of the first sliding table 18 through a lead screw nut and a nut seat, and the first servo motor 7 drives the first lead screw 6 to rotate.

As shown in fig. 10 to 12, be provided with first lifting subassembly 1 on the first slip table 18, be provided with the sliding location subassembly on the first lifting subassembly 1, the anterior product seat 2 that is used for placing product 19 that sets up of sliding location subassembly, first lifting subassembly 1 drives sliding location subassembly and product seat 2 along vertical direction elevating movement, realizes the ascending location of 19 vertical directions of product, the sliding location subassembly is used for driving product seat 2 and slides along the horizontal direction, realize the ascending accurate positioning of 19 horizontal directions of product.

Further, the first lifting assembly 1 comprises a first lifting cylinder 5, a track block 21, a lifting seat 22, a track block 23 and a pin 26. Referring to fig. 5, the track block 21 is slidably disposed at the bottom of the sliding positioning assembly (the lifting plate 27) through the track block 23, and the first lifting cylinder 5 fixed at the bottom of the sliding positioning assembly (the lifting plate 27) is connected to drive the track block 21 to slide along the track block 23. As shown in fig. 13, the two lifting seats 22 are symmetrically disposed on two sides of the track block 23, the lifting seats 22 are movably supported between the bottom of the sliding positioning assembly and the first sliding table 18 through the guide posts 24, as shown in fig. 5, a track groove 25 is obliquely formed on the track block 21 for passing through a pin shaft 26, the pin shaft 26 slides along the track groove 25, and two ends of the pin shaft 26 are respectively fixed to the lifting seats 22, so that the sliding positioning assembly moves up and down relative to the first sliding table 18.

Referring to fig. 11 and 12, the sliding positioning assembly includes a slider mechanism 3, a positioning cylinder 4 and a lifting plate 27, the slider mechanism 3 is fixed on the lifting plate 27, the product bearing seat 2 is arranged on the lifting plate 27 at the front end of the slider mechanism 3, the positioning cylinder 4 is arranged on the lifting plate 27 at the rear end of the slider mechanism 3, and the positioning cylinder 4 is used for driving the slider mechanism 3 to horizontally position a product in the product bearing seat 2. The lifting plate 27 is driven to lift by the first lifting assembly 1. As shown in fig. 12, the slider mechanism 3 includes a fixed block 28, a driving block 29 and a fine positioning slider 30, the fixed block 28 is fixed on the lifting plate 27 through a thread, the driving block 29 (not contacting with the lifting plate 27 and sliding relative to the lifting plate 27) is driven by the positioning cylinder 4, one end of the fine positioning slider 30 is fixed on the driving block 29, the other end of the fine positioning slider 30 penetrates through the fixed block 28 and faces the product bearing 2 for fine positioning of the product on the product bearing 2, and the fine positioning slider 30 slides relative to the fixed block 28. An upper cover plate 31 is fixed on the surface of the fixed block 28 above the fine positioning sliding block 30 through threads, a limit block 32 is arranged at one end, facing the driving block 29, of the fine positioning sliding block 30, and the limit block 32 is used for being matched with the upper cover plate 31 so as to limit the leftward movement stroke of the fine positioning sliding block 30. Guide plates 33 are fixedly mounted on two sides of the driving block 29, after the guide plates 33 penetrate through the fixed block 28, the guide plates 33 are stopped on the fixed block 28 by using baffle plates 34, and the guide plates 33 can slide relative to the fixed block 28 under the driving of the driving block 29 to guide the sliding of the fine positioning sliding block 30.

Referring to fig. 3, 7 ~ 9, servo rotatory module of bending goes up along the length direction level of base 17 and sets up second linear slide rail 16, second slip table 20 passes through slider slidable mounting on second linear slide rail 16, and second slip table 20 drives through second lead screw 14 and the second servo motor 15 that sets up on second bottom plate 47 to the position of the relative servo rotatory module of bending of product location lifting module is tentatively adjusted. Further, the second screw 14 is fixed to the bottom of the second sliding table 20 through a screw nut and a nut seat, and the second servo motor 15 drives the second screw 14 to rotate.

As shown in fig. 7 to 9, a second lifting assembly is arranged on the second sliding table 20, a rotary bending assembly is arranged on the second lifting assembly, the second lifting assembly is used for driving the rotary bending assembly to move up and down along the vertical direction, the rotary bending assembly is connected with the driving rotary swing block 10, and the product 19 is rotatably bent through the rotary swing block 10.

Referring to fig. 8, the second lifting assembly includes a second lifting cylinder 13 and an inclined slider lifting mechanism 12, the second lifting cylinder 13 is fixed on the second sliding table 20, and it should be noted that, in fig. 1 to 5 and 7, the second lifting cylinder 13 is only shown in the form of an expansion link, and a frame structure outside the expansion link is not shown. The inclined slide block lifting mechanism 12 comprises a supporting plate 35, an inclined slide block 44 and a lifting plate 45, the supporting plate 35 is fixed on the second sliding table 13 in a threaded mode, the inclined slide block 44 connected and driven by the second lifting cylinder 13 is installed on the supporting plate 35 in a relatively sliding mode, the lifting plate 45 is arranged above the supporting plate 35 and is in inclined surface fit transmission with the inclined slide block 44, when the second lifting cylinder 13 drives the inclined slide block 44 to slide, the lifting plate 45 is gradually lifted or lowered under the action of an inclined surface, and therefore the rotary bending assembly fixed on the lifting plate 45 can move up and down relative to the supporting plate 35. Preferably, the angle of the ramp block 44 is 2 °, allowing a small stroke of displacement at low angles, allowing fine adjustment of the height position of the rotary bending assembly.

As shown in fig. 6 to 9, the rotary bending assembly includes a rotary driving servo motor 11, a support frame 36 and a motor mounting plate 37, the two motor mounting plates 37 are symmetrically arranged on the second lifting assembly (lifting plate 45), the rotary driving servo motor 11 is decelerated by a right-angle precision servo reducer 9 and supported on one motor mounting plate 37, an output shaft of the right-angle precision servo reducer 9 is connected to drive the rotary swing block 10, the other end of the rotary swing block 10 is supported on the other motor mounting plate 37 by a driven shaft 42, and the rotary swing block 10 synchronously drives the bending block 38 fixed thereon to rotate. As shown in fig. 5, the supporting frame 36 is fixed on the base 17 between the product positioning and lifting module and the servo rotary bending module. Referring to fig. 5 and 7, a terminal positioning groove 39 is fixed at the top of the supporting frame 36, the terminal positioning groove 39 is located above the product holder 2, the terminals of the product 19 extend out from a plurality of terminal holes 40 formed in the terminal positioning groove 39 and face the rotary swing block 10, a notch 41 corresponding to the surface of the terminal positioning groove 39 is formed in the bending block 38, and when the product is bent, the notch 41 of the bending block 38 is matched with the terminal positioning groove 39 to bend the terminals of the product 19. Preferably, as shown in fig. 6, 8 and 9, a limiting plate 43 is fixed between the two motor mounting plates 37 for limiting the downward rotation angle of the rotary swing block 10. The rotary swing block 10 rotates within the range of 0-90 degrees (i.e., an angle α in fig. 8) between the limit plate 43 and the support frame 36.

The working process of the invention is as follows: during bending, the first servo motor 7 is started, the first sliding table 18 is adjusted, the whole product positioning and lifting module is far away from the supporting frame 36, and then a semi-finished product supplied material obtained in the previous process is placed on the product bearing seat 2. The first slide table 18 is driven by the first servo motor 7 to preliminarily adjust the position of the product 19 relative to the terminal positioning groove 39. Then, the first lifting cylinder 5 drives the track block 21 to slide along the track block 23, the pin shaft 26 starts to slide along the track groove 25 (to realize a large stroke displacement in the vertical direction), so that the guide post 24 starts to extend and retract relative to the lifting seat 22, and the lifting plate 27 also moves up and down relative to the first sliding table 18, thereby realizing positioning and adjusting the vertical position of the product 19. Then, the positioning cylinder 4 is started to drive the slide block mechanism 3 to start moving, and the horizontal position of the product 19 on the product bearing seat 2 is accurately adjusted through the fine positioning slide block 30. Meanwhile, the second servo motor 15 drives the second sliding table 20 to adjust the horizontal position of the servo rotary bending module relative to the product positioning and lifting module. The second lifting cylinder 13 drives the inclined slide block lifting mechanism 12, the vertical position of the rotary bending assembly relative to the product 19 can be further adjusted, and the inclined slide block lifting mechanism 12 adopts a low-angle inclined slide block to realize small-stroke vertical displacement. After the product positioning and lifting module and the servo rotary bending module are adjusted relative to the product 19, the rotary driving servo motor 11 is started, the rotary swing block 10 immediately starts to rotate to drive the bending block 38 fixed below the rotary swing block to rotate, and the product terminal extends out of the terminal positioning groove 39 from the terminal hole 40, so that the terminal is bent by the notch 41 in the bending block 38 under the matching of the surface of the terminal positioning groove 39, and the bending angle can be servo-controlled by the rotary driving servo motor 11.

The invention can realize the differentiated adjustment of the supplied materials of the products through the linkage control of the three servo motors, wherein the first servo motor 7 and the second servo motor 15 can adjust the horizontal distance between the products and the terminal positioning groove 39 according to the supplied materials; the rotary driving servo motor 11 adjusts the bending angle of the terminal according to the difference of supplied materials. The two lifting mechanisms are realized by cylinders, wherein the first lifting cylinder 5 realizes the displacement of a large stroke by adopting a track groove 25 and a pin shaft 26, and the second lifting cylinder 13 realizes the displacement of a small stroke by adopting a low-angle inclined slide block. Aiming at differentiated incoming materials, bending parameters of products are servo-controlled by the rotary driving servo motor 11, and the bending parameters are convenient and fast to adjust and high in precision.

It should be understood that equivalent substitutions and changes to the technical solution and the inventive concept of the present invention should be made by those skilled in the art to the protection scope of the appended claims.

Claims

1. The utility model provides a high accuracy offset-type terminal mechanism of bending which characterized in that: the device comprises a base (17), a first sliding table (18), a second sliding table (20), a product positioning and lifting module and a servo rotary bending module, wherein the product positioning and lifting module is fixed on one side of the base (17), and the servo rotary bending module is fixed on the other side of the base (17);

the product positioning and lifting mechanism is characterized in that a first linear sliding rail (8) is horizontally arranged on the product positioning and lifting module along the length direction of the base (17), the first sliding table (18) is arranged on the first linear sliding rail (8) in a sliding mode, a first lifting assembly (1) is arranged on the first sliding table (18), a sliding positioning assembly is arranged on the first lifting assembly (1), a product bearing (2) used for placing a product (19) is arranged at the front part of the sliding positioning assembly, the first lifting assembly (1) drives the sliding positioning assembly and the product bearing (2) to move up and down along the vertical direction, positioning of the product (19) in the vertical direction is achieved, the sliding positioning assembly is used for driving the product bearing (2) to slide along the horizontal direction, and fine positioning of the product (19) in the horizontal direction is achieved;

follow the length direction level of base (17) on the servo rotatory module of bending and set up second linear slide rail (16), second slip table (20) slide and set up on second linear slide rail (16), set up second lifting subassembly on second slip table (20), set up the rotatory subassembly of bending on the second lifting subassembly, second lifting subassembly is used for driving the rotatory subassembly of bending along vertical direction elevating movement, rotatory swing block (10) of drive is connected to the rotatory subassembly of bending, carries out rotatory bending to product (19) through rotatory swing block (10).

2. The high-precision compensation type terminal bending mechanism according to claim 1, characterized in that: the first lifting assembly (1) comprises a first lifting cylinder (5), a track block (21), a lifting seat (22), a track block (23) and a pin shaft (26), the track block (21) is arranged at the bottom of the sliding positioning assembly in a sliding mode through the track block (23), and the first lifting cylinder (5) fixed at the bottom of the sliding positioning assembly is connected with the track block (21) to drive the track block (21) to slide along the track block (23); two lift seat (22) symmetry set up the both sides in track piece (23), lift seat (22) pass through guide post (24) activity support between sliding location subassembly bottom and first slip table (18), orbit groove (25) are seted up to the slant on orbit piece (21) for run through and set up round pin axle (26), round pin axle (26) slide along orbit groove (25), and the both ends of round pin axle (26) correspond fixedly with one lift seat (22) respectively, make the relative first slip table (18) elevating movement of sliding location subassembly.

3. The high-precision compensation type terminal bending mechanism according to claim 1, characterized in that: the sliding positioning assembly comprises a sliding block mechanism (3), a positioning cylinder (4) and a lifting plate (27), the sliding block mechanism (3) is fixed on the lifting plate (27), the product bearing seat (2) is arranged on the lifting plate (27) at the front end of the sliding block mechanism (3), the positioning cylinder (4) is arranged on the lifting plate (27) at the rear end of the sliding block mechanism (3), and the positioning cylinder (4) is used for driving the sliding block mechanism (3) to horizontally position a product in the product bearing seat (2); the lifting plate (27) is driven to lift by the first lifting assembly (1).

4. The high-precision compensation type terminal bending mechanism according to claim 3, characterized in that: the sliding block mechanism (3) comprises a fixed block (28), a driving block (29) and a fine positioning sliding block (30), the fixed block (28) is installed on the lifting plate (27), the driving block (29) is connected and driven by the positioning cylinder (4), one end of the fine positioning sliding block (30) is fixed on the driving block (29), the other end of the fine positioning sliding block (30) penetrates through the fixed block (28) and faces the product bearing seat (2) for fine positioning of a product on the product bearing seat (2), and the fine positioning sliding block (30) slides relative to the fixed block (28); an upper cover plate (31) is arranged on the surface of the fixed block (28) above the fine positioning sliding block (30), a limiting block (32) is arranged at one end, facing the driving block (29), of the fine positioning sliding block (30), and the limiting block (32) is used for being matched with the upper cover plate (31) so as to limit the stroke of the fine positioning sliding block (30); guide plates (33) are arranged on two sides of the driving block (29), the guide plates (33) penetrate through the fixing block (28) and are blocked by the baffle (34), and the guide plates (33) slide relative to the fixing block (28).

5. The high-precision compensation type terminal bending mechanism according to claim 1, characterized in that: the second lifting assembly comprises a second lifting cylinder (13) and an inclined sliding block lifting mechanism (12), and the second lifting cylinder (13) is fixed on the second sliding table (20); oblique slider lifting mechanism (12) are including backup pad (35), slider (44) and lifting plate (45) to one side, backup pad (35) are fixed on second slip table (13), slider (44) slidable mounting to one side by second lifting cylinder (13) driven is on backup pad (35), lifting plate (45) are located backup pad (35) top and are passed through inclined plane cooperation transmission with slider (44) to one side, make the relative backup pad (35) elevating movement of rotatory subassembly of bending who fixes on lifting plate (45).

6. The high-precision compensation type terminal bending mechanism according to claim 1, characterized in that: the rotary bending assembly comprises a rotary driving servo motor (11), a support frame (36) and a motor mounting plate (37), the two motor mounting plates (37) are symmetrically arranged on the second lifting assembly, the rotary driving servo motor (11) is supported on one motor mounting plate (37) and used for connecting and driving the rotary swing block (10), the other end of the rotary swing block (10) is supported on the other motor mounting plate (37) through a driven shaft (42), and the rotary swing block (10) is used for driving a bending block (38) fixed on the rotary swing block to rotate; support frame (36) are fixed on base (17) between product location lifting module and the servo rotatory module of bending, are fixed with terminal constant head tank (39) at support frame (36) top, and terminal constant head tank (39) are located product bearing (2) top, and the terminal of product (19) stretches out from a plurality of terminal holes (40) that set up on terminal constant head tank (39) to towards rotatory pendulum piece (10), set up breach (41) that suit with terminal constant head tank (39) surface on the piece of bending (38).

7. The high-precision compensation type terminal bending mechanism according to claim 6, characterized in that: a limiting plate (43) is fixed between the two motor mounting plates (37), and the rotary swing block (10) rotates in a range of 0-90 degrees between the limiting plate (43) and the support frame (36); the rotary driving servo motor (11) is decelerated through a right-angle precision servo speed reducer (9) and supported on a motor mounting plate (37).

8. The high-precision compensation type terminal bending mechanism according to claim 1, characterized in that: the bottom of the product positioning and lifting module is fixed on the base (17) through a first bottom plate (46), and the bottom of the servo rotary bending module is fixed on the base (17) through a second bottom plate (47).

9. The high-precision compensation type terminal bending mechanism according to claim 8, wherein: the first sliding table (18) is driven by a first lead screw (6) arranged on a first bottom plate (46) and a first servo motor (7).

10. The high-precision compensation type terminal bending mechanism according to claim 8, wherein: the second sliding table (20) is driven by a second lead screw (14) arranged on a second bottom plate (47) and a second servo motor (15).