Single-sliding-table rear positioning mechanism

Abstract

The utility model discloses a single-sliding-table rear positioning mechanism which sequentially comprises a sliding table assembly, a lifting assembly, a cross beam assembly and a check block assembly from bottom to top. The sliding table assembly is used for achieving front-back movement of the check block assembly. The lifting assembly is used for achieving lifting movement of the check block assembly. The cross beam assembly is used for achieving left-right horizontal movement of the check block assembly. The stop block assembly is fixed on the cross beam assembly, a first leaning position, a second leaning position and a third leaning position are arranged on the stop block assembly, and the heights of the first leaning position, the second leaning position and the third leaning position are gradually increased to form three levels of gears. The sliding table assembly drives the whole set of rear positioning to achieve front-back movement, the lifting assembly can move up and down to drive the check block assembly and the cross beam assembly to achieve height adjustment, the check block assembly can move left and right according to the size of a product, meanwhile, the telescopic function of a check block can be achieved, and therefore the movement amount of the whole sliding table is reduced; the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of bending machines, in particular to a single-slide-table rear positioning mechanism. Background Art

[0002] A bending machine is a machine that can bend thin plates. It moves to a specified position according to the parameters set by the system, and then uses the hydraulic system to supply oil into the inner cavity of the oil cylinder, forcing the piston rod to drive the upper workbench to press downward towards the lower workbench, thereby realizing the bending function.

[0003] Among them, the rear positioning mechanism is an important component of the bending machine. Through the movement of the rear positioning mechanism, the sample can be transported to the specified position of the lower workbench, and then the sample is bent by pressing down the upper workbench. The stability and transmission efficiency of the rear positioning mechanism are the direct factors affecting the bending efficiency.

[0004] Due to the differences in the sizes of bent parts, the prior art generally adjusts the position by moving the entire slide table. As a result, when switching between different parts, it is necessary to re-move the position of the slide table and debug the machine, which is cumbersome to operate. Summary of the Utility Model

[0005] The utility model aims to overcome at least one defect of the above-mentioned prior art, and provides a single-slide-table rear positioning mechanism to achieve the purpose of wider application range and better stability.

[0006] The utility model provides a single-slide-table rear positioning mechanism, which successively includes a slide table assembly, a lifting assembly, a cross beam assembly, and a stop block assembly from bottom to top; the slide table assembly is used to realize the forward and backward movement of the stop block assembly; the lifting assembly is used to realize the lifting movement of the stop block assembly; the cross beam assembly is used to realize the left and right horizontal movement of the stop block assembly; the stop block assembly is fixed on the cross beam assembly, and the stop block assembly is provided with a first positioning position, a second positioning position, and a third positioning position, and the heights of the first positioning position, the second positioning position, and the third positioning position increase successively to form three-level gears.

[0007] Through the design of height difference, the stop block assembly can form different gears, so that the three-section stop fingers have three different positioning positions, while the standard one has only one. For some special bending workpieces, the three-section type is more practical than the standard type.

[0008] In one embodiment of the present utility model, the stopper assembly includes a first stopper, a first front stopper fixing plate, a second front stopper fixing plate, a stopper fixing bottom plate, a second stopper, a first rear baffle, a third stopper, and a second rear baffle; the first stopper, the first front stopper fixing plate, the second front stopper fixing plate, and the stopper fixing bottom plate are connected in sequence; the second stopper and the first rear baffle are attached to one end of the stopper fixing bottom plate, and the third stopper and the second rear baffle are attached to the other end of the stopper fixing bottom plate; the first stopper and the stopper fixing bottom plate are on the same horizontal plane; the height of the third stopper is greater than the height of the second stopper; the first stopper, the second stopper, and the third stopper form a first resting position, a second resting position, and a third resting position in sequence.

[0009] In another embodiment of the present utility model, the stopper assembly includes a first stopper, a first front stopper fixing plate, a stopper front fixing seat, and a stopper fixing bottom plate that are connected in sequence; it further includes a second stopper, a first rear baffle, a third stopper, and a second rear baffle; the second stopper and the first rear baffle are attached to the first front stopper fixing plate; the third stopper and the second rear baffle are attached to one end of the stopper fixing bottom plate, and the first stopper, the second stopper, and the third stopper form a first resting position, a second resting position, and a third resting position in sequence.

[0010] There are two installation forms for the stopper assembly of the present utility model. The first one is that the second stopper and the first rear baffle are attached to one end of the stopper fixing bottom plate, and the third stopper and the second rear baffle are attached to the other end of the stopper fixing bottom plate; the other one is that the second stopper and the first rear baffle are attached to the first front stopper fixing plate; the third stopper and the second rear baffle are attached to one end of the stopper fixing bottom plate, which can meet the requirements of different-sized products.

[0011] Furthermore, the slide table assembly includes a slide table support, a first lead screw assembly, a first linear module, a first drive assembly, and a first slide plate; one end of the first lead screw assembly is fixed to one end of the slide table support, and the other end of the first lead screw assembly is connected to the first drive assembly; there are two groups of the first linear modules, which are respectively arranged on both sides of the first lead screw assembly and are parallel to both sides of the first lead screw assembly; the middle part of the first slide plate is connected to the first lead screw assembly, and both sides of the middle part are connected to the first linear modules; both ends are respectively connected to the lifting assembly; by driving the first lead screw assembly to rotate through the first drive assembly, the first slide plate drives the lifting assembly to slide horizontally along the first linear module.

[0012] Further, the first lead screw assembly includes a first lead screw, a lead screw nut, and a nut sleeve; the first drive assembly includes a first motor, a first mounting seat, and a slide bearing seat fixed in sequence; one end of the first lead screw passes through the slide bearing seat and the first mounting seat and is connected to the first motor; the bottom of the slide bearing seat is fixed to the slide support; the first lead screw movably passes through the lead screw nut, and the nut sleeve is sleeved outside the lead screw nut; the other end of the first lead screw is further provided with a front bearing seat, and the first lead screw is fixed to the inner wall of the slide support through the front bearing seat; the first slide plate is fixed to the top surface of the nut sleeve; the first linear module includes a first linear slide rail, and a plurality of first linear sliders are arranged on the first linear slide rail; the first slide plate is fixed to the first linear slider; a plurality of cylindrical anti-collision pads are arranged on the inner side edges of the slide bearing seat and / or the front bearing seat.

[0013] Further, the lifting assembly includes a lifting bracket, a second motor, a first speed reducer, a second lead screw, a ball screw nut, a lifting anti-collision pad, a lifting lead screw clamping block, and a second linear module; the second motor and the first speed reducer are installed on the cross beam assembly; the second linear module is arranged at both ends of the first slide plate; the second motor is connected to the first speed reducer, a lifting bearing sleeve is arranged at the top end of the second lead screw, and the second lead screw passes through the lifting bearing sleeve and is connected to the first speed reducer; the second lead screw passes through the ball screw nut; the inner side of the ball screw nut fits the second lead screw, and the outer side is fixed to the first slide plate; the other end of the second lead screw is sequentially connected to the lifting anti-collision pad and the lifting lead screw clamping block; by driving the first speed reducer by the second motor to reduce the speed, the second lead screw rotates, and the ball screw nut drives the first slide plate to lift along the second linear module.

[0014] Further, there are two groups of the second linear modules, including a second linear slide rail, a second linear slider, and a second lifting slider seat; the second linear slide rail is fixed to the inner side of the lifting bracket; the second linear slider is movably arranged on the second linear slide rail; the second lifting slider seat is fixed to the second linear slider, and both ends of the first slide plate are respectively installed on the second lifting slider seats.

[0015] Further, the second lifting slider seat is in a horizontal T shape. By adopting the horizontal T shape and arranging a group at both ends of the first slide plate respectively, the first slide plate can be stably placed on the horizontal T-shaped second lifting slider seats, and then fastened with screws, so that the stability is higher.

[0016] Further, the crossbeam assembly includes a cast aluminum crossbeam, a rack, a third linear slide rail, a third linear slider, a third motor, a third speed reducer, a rear positioning motor fixing seat, a cylindrical gear, a rear positioning stop block seat, and a rear positioning stop block connection assembly; the stop block assembly is arranged on the rear positioning stop block seat; one side of the cast aluminum crossbeam is provided with a rack, and the other side is provided with a third linear slide rail; the third linear slider is arranged on the third linear slide rail; the third motor is connected to the third speed reducer, the rotating shaft of the third speed reducer passes through the rear positioning motor fixing seat and is connected to the cylindrical gear, the upper side of the rear positioning motor fixing seat is fixed to the rear positioning stop block seat, and the end of the rear positioning stop block seat is fixed to the rear positioning stop block connection assembly; the cylindrical gear meshes with the lower side edge of the rack.

[0017] Further, the single-slide-table rear positioning mechanism of the present utility model further includes a fine-tuning module, the fine-tuning module is installed below the stop block assembly, and the fine-tuning module includes a fine-tuning machine base, a fourth motor, a motor base, a fourth lead screw, and a plurality of nut seats; one end of the motor base is connected to the fourth motor, and the other end is fixed to the fine-tuning machine base; one end of the fourth lead screw passes through the motor base and is connected to the fourth motor; the other end is connected to the fine-tuning machine base; a plurality of fourth linear sliders are penetrated through the fourth lead screw; the nut seat has a structure with two concave surfaces inside, the bottom surface of the nut seat is connected to the fourth linear slider, and both sides of the top end are fixedly connected to the stop block assembly; the fourth motor drives the fourth linear slider to drive the nut seat to move back and forth along the fourth lead screw.

[0018] The fine-tuning module of the present utility model is used to adjust the positions of different gears of the stop block assembly. Since the stop block assembly is a segmented structure, the fine-tuning module can be flexibly adjusted according to the part size, with a wider adaptability. By horizontally moving two nut seats on the fourth lead screw and adjusting the distance between them, the position adjustment of different docking positions on the stop block assembly can be realized.

[0019] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0020] The present utility model drives the entire set of rear positioning to move back and forth through the slide table assembly, the lifting and lowering assembly moves up and down to drive the stop block assembly and the crossbeam assembly to realize the adjustment of height, the stop block assembly can move left and right according to the size of the product, and a lead screw drive is arranged inside each stop block assembly. When encountering bent parts of different sizes, the telescopic function of the stop block can be realized, thereby reducing the movement amount of the entire slide table and improving production efficiency. In addition, the stop block is provided with a multi-stage positioning function. When encountering thin plates, the material can be effectively held to prevent the material from bending and deforming, thereby ensuring the accuracy requirements of the product. Description of the Drawings

[0021] Figure 1 This is the overall structural schematic diagram of the single-slide table rear positioning mechanism of the present utility model.

[0022] Figure 2 This is the structural schematic diagram of another perspective of the single-slide table rear positioning mechanism of the present utility model.

[0023] Figure 3 This is the enlarged structural schematic diagram of the stopper assembly of the single-slide table rear positioning mechanism of the present utility model.

[0024] Figure 4 This is the structural schematic diagram of the stopper assembly in Embodiment 1 of the single-slide table rear positioning mechanism of the present utility model.

[0025] Figure 5 This is the structural schematic diagram showing the slide table assembly of the single-slide table rear positioning mechanism of the present utility model.

[0026] Figure 6 This is the partial structural schematic diagram showing the slide table assembly of the single-slide table rear positioning mechanism of the present utility model.

[0027] Figure 7 This is the structural schematic diagram of another perspective of the single-slide table rear positioning mechanism of the present utility model.

[0028] Figure 8 This is the structural schematic diagram of another perspective of the single-slide table rear positioning mechanism of the present utility model.

[0029] Figure 9 This is the partial enlarged and disassembled structural schematic diagram of the crossbeam assembly of the single-slide table rear positioning mechanism of the present utility model.

[0030] Figure 10 This is the partial exploded structural schematic diagram of the fine-tuning module of the single-slide table rear positioning mechanism of the present utility model.

[0031] Figure 11 This is the assembled structural schematic diagram of the fine-tuning module of the single-slide table rear positioning mechanism of the present utility model.

[0032] Figure 12 This is the structural schematic diagram of the stopper assembly in Embodiment 2 of the single-slide table rear positioning mechanism of the present utility model. Detailed implementation manners

[0033] The accompanying drawings in the embodiments are used to describe the technical solutions in the embodiments of the present utility model in more detail. In the drawings, the same or similar reference numerals are used to represent the same or similar elements or elements with the same or similar functions from beginning to end. The described embodiments are some, but not all, of the embodiments of the present utility model. The embodiments described below by referring to the accompanying drawings are exemplary and are intended to explain the present utility model, and should not be construed as a limitation to the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model. The embodiments of the present utility model will be described in detail below with reference to the accompanying drawings.

[0034] It should be noted that if there are directional indications (such as up, down, left, right, front, back...) involved in the embodiments of this application, then such directional indications are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the accompanying drawings). If this specific posture changes, then the directional indications will also change accordingly.

[0035] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of this application, then such descriptions of "first", "second", etc. are only for descriptive purposes and should not be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by this application.

[0036] Embodiment

[0037] This embodiment provides a single sliding table rear positioning mechanism, as Figure 1 shown, which sequentially includes a sliding table assembly 1, a lifting assembly 2, a cross beam assembly 3, and a stop block assembly 4 from bottom to top; the sliding table assembly 1 is used to realize the front and back movement of the stop block assembly 4; the lifting assembly 2 is used to realize the lifting movement of the stop block assembly 4; the cross beam assembly 3 is used to realize the left and right horizontal movement of the stop block assembly 4; the stop block assembly 4 is fixed on the cross beam assembly 3. Combining Figures 2 - 3 shown, the stop block assembly 4 is provided with a first positioning position 10, a second positioning position 20, and a third positioning position 30, and the heights of the first positioning position 10, the second positioning position 20, and the third positioning position 30 increase, forming three-level gears.

[0038] In this embodiment, as Figure 4As shown in the figure, the stopper assembly 4 includes a first stopper 41, a first front stopper fixing plate 42, a second front stopper fixing plate 43, a stopper fixing bottom plate 44, a second stopper 45, a first rear baffle 46, a third stopper 47, and a second rear baffle 48; the first stopper 41, the first front stopper fixing plate 42, the second front stopper fixing plate 43, and the stopper fixing bottom plate 44 are connected in sequence; one end of the stopper fixing bottom plate 44 is slightly thinner, the second stopper 45 and the first rear baffle 46 are attached to the thinner end of the stopper fixing bottom plate 44, the third stopper 47 and the second rear baffle 48 are attached to the other end of the stopper fixing bottom plate 44; the first stopper 41 and the stopper fixing bottom plate 44 are on the same horizontal plane; the height of the third stopper 47 is greater than the height of the second stopper 45; the first stopper 41, the second stopper 45, and the third stopper 47 form a first resting position 10, a second resting position 20, and a third resting position 30 in sequence.

[0039] As Figure 5 shown in the figure, the slide table assembly 1 includes a slide table support 11, a first lead screw assembly 12, a first linear module 13, a first drive assembly 14, and a first slide plate 15; one end of the first lead screw assembly 12 is fixed to one end of the slide table support 11, and the other end of the first lead screw assembly 12 is connected to the first drive assembly 14; there are two groups of the first linear modules 13, which are respectively arranged on both sides of the first lead screw assembly 12 and are parallel to both sides of the first lead screw assembly 12; the middle part of the first slide plate 15 is connected to the first lead screw assembly 12, and both sides of the middle part are connected to the first linear modules 13; both ends are respectively connected to the lifting assembly 2; by driving the first lead screw assembly 12 to rotate through the first drive assembly 14, the first slide plate 15 drives the lifting assembly 2 to slide horizontally along the first linear module 13.

[0040] As Figure 6 shown in the figure, the first lead screw assembly 12 includes a first lead screw member 121, a lead screw nut 122, and a nut sleeve 123; the first drive assembly 14 includes a first motor 141, a first mounting seat 142, and a slide table bearing seat 143 that are fixed in sequence; one end of the first lead screw member 121 passes through the slide table bearing seat 143 and the first mounting seat 142 and is connected to the first motor 141; the bottom of the slide table bearing seat 143 is fixed to the slide table support 11; the first lead screw member 121 movably penetrates through the lead screw nut 122, and a nut sleeve 123 is sleeved outside the lead screw nut 122; the other end of the first lead screw member 121 is also provided with a front bearing seat 124, and the first lead screw member 121 is fixed to the inner wall of the slide table support 11 through the front bearing seat 124; as shown in Figure 5, the first slide plate 15 is fixed to the top surface of the nut sleeve 123; As Figure 6As shown, the first linear module 13 includes a first linear slide rail 131, and a plurality of first linear sliders 132 are provided on the first linear slide rail 131; the first slide plate 15 is fixed to the first linear sliders 132; a plurality of cylindrical anti-collision pads 133 are provided on the inner side of the slide bearing seat 143 and / or the front bearing seat 124.

[0041] As Figure 2 and Figure 7 shown, the lifting assembly 2 includes a lifting bracket 21, a second motor 22, a first speed reducer 23, a second lead screw 24, a ball screw nut 25, a lifting anti-collision pad 26, a lifting lead screw clamping block 27, and a second linear module 28; the second motor 22 and the first speed reducer 23 are installed on the cross beam assembly 3; the second linear module 28 is provided at both ends of the first slide plate 15; the second motor 22 is connected to the first speed reducer 23, and a lifting bearing sleeve is provided at the top end of the second lead screw 24, and the second lead screw 24 passes through the lifting bearing sleeve and is connected to the first speed reducer 23; the second lead screw 24 passes through the ball screw nut 25; the inner side of the ball screw nut 25 is in contact with the second lead screw 24, and the outer side is fixed to the first slide plate 15; the other end of the second lead screw 24 is sequentially connected to the lifting anti-collision pad 26 and the lifting lead screw clamping block 27; the rotation of the second lead screw 24 is realized by driving the first speed reducer 23 to decelerate by the second motor 22, and the ball screw nut 25 drives the first slide plate 15 to lift along the second linear module 28.

[0042] Combined with Figure 8 shown, there are two sets of the second linear modules 28, which include second linear slide rails 281, second linear sliders 282, and second lifting slider seats 283; the second linear slide rails 281 are fixed to the inner side of the lifting bracket 21; the second linear sliders 282 are movably provided on the second linear slide rails 281; the second lifting slider seats 283 are fixed to the second linear sliders 282, and both ends of the first slide plate 15 are respectively installed on the second lifting slider seats 283. Preferably, the second lifting slider seats 283 are in a horizontal T shape.

[0043] As Figure 3 and 9As shown in the figure, the crossbeam assembly 3 includes an aluminum-cast crossbeam 31, a rack 32, a third linear slide rail 33, a third linear slider 34, a third motor 35, a third speed reducer 36, a rear positioning motor fixing seat 37, a cylindrical gear 38, a rear positioning stop block seat 39, and a rear positioning stop block connection assembly 40; the stop block assembly 4 is arranged on the rear positioning stop block seat 39; one side of the aluminum-cast crossbeam 31 is provided with the rack 32, and the other side is provided with the third linear slide rail 33; the third linear slider 34 is arranged on the third linear slide rail 33; the third motor 35 is connected to the third speed reducer 36, the rotating shaft of the third speed reducer 36 passes through the rear positioning motor fixing seat 37 and is connected to the cylindrical gear 38, the upper side of the rear positioning motor fixing seat 37 is fixed to the rear positioning stop block seat 39, and the end of the rear positioning stop block seat 39 is fixed to the rear positioning stop block connection assembly 40; the cylindrical gear 38 meshes with the lower side of the rack 32.

[0044] As Figure 9 shown, the single-slide-table rear positioning mechanism of the present utility model further includes a fine adjustment module 5, and the fine adjustment module 5 is installed below the stop block assembly 4. Combining Figures 10 - 11 shown, the fine adjustment module 5 includes a fine adjustment base 51, a fourth motor 52, a motor base 53, a fourth lead screw 54, and a plurality of nut seats 55; one end of the motor base 53 is connected to the fourth motor 52, and the other end is fixed to the fine adjustment base 51; one end of the fourth lead screw 54 passes through the motor base 53 and is connected to the fourth motor 52; the other end is connected to the fine adjustment base 51; a fourth linear slider 56 is penetrated through the fourth lead screw 54, the nut seat 55 has a structure with two concave surfaces on both sides, and an upper cover 57 is further provided on the nut seat 55; the bottom surface of the nut seat 55 is connected to the fourth linear slider 56, and both sides of the top end are fixedly connected to the stop block assembly 4; the fourth motor 52 drives the fourth linear slider 56 to drive the nut seat 55 to move back and forth along the fourth lead screw 54.

[0045] Embodiment 2

[0046] In another embodiment of the present utility model, as Figure 12 shown, the stop block assembly 4 includes a first stop block 41, a first front stop block fixing plate 42, a stop block front fixing seat 49, and a stop block fixing bottom plate 44 that are connected in sequence; it further includes a second stop block 45, a first rear baffle 46, a third stop block 47, and a second rear baffle 48; the second stop block 45 and the first rear baffle 46 are attached and arranged on the first front stop block fixing plate 42; the third stop block 47 and the second rear baffle 48 are attached and arranged at one end of the stop block fixing bottom plate 44, and the first stop block 41, the second stop block 45, and the third stop block 47 form a first positioning position 10, a second positioning position 20, and a third positioning position 30 in sequence.

[0047] The above embodiments are only used to illustrate the technical solutions of the present utility model rather than to limit it. Although the present utility model has been described in detail with reference to the above preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present utility model can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present utility model. Those skilled in the art can also make other changes within the spirit of the present utility model for use in the design of the present utility model, as long as they do not deviate from the technical effects of the present utility model. All such changes made in accordance with the spirit of the present utility model should be included within the scope of protection required by the present utility model.

Claims

1. A single slide rear positioning mechanism, characterized in that: The system comprises, from bottom to top, a slide assembly (1), a lifting assembly (2), a crossbeam assembly (3), and a stopper assembly (4); The slide assembly (1) is used to realize the forward and backward movement of the block assembly (4); the lifting assembly (2) is used to realize the lifting and lowering movement of the block assembly (4); the crossbeam assembly (3) is used to realize the left and right horizontal movement of the block assembly (4); the block assembly (4) is fixed on the crossbeam assembly (3), and the block assembly (4) is provided with a first support position (10), a second support position (20) and a third support position (30), and the heights of the first support position (10), the second support position (20) and the third support position (30) are increased in sequence to form a three-level gear position.

2. The single slide rear positioning mechanism according to claim 1, characterized in that: The block assembly (4) comprises a first block (41), a first front block fixing plate (42), a second front block fixing plate (43), a block fixing bottom plate (44), a second block (45), a first rear block (46), a third block (47) and a second rear block (48); The first stopper (41), the first front stopper fixing plate (42), the second front stopper fixing plate (43), and the stopper fixing bottom plate (44) are connected in sequence; The second stopper (45) and the first rear stopper (46) are fitted on one end of the stopper fixing base plate (44), and the third stopper (47) and the second rear stopper (48) are fitted on the other end of the stopper fixing base plate (44); The first stopper (41) and the stopper fixing bottom plate (44) are on the same horizontal plane; the height of the third stopper (47) is greater than the height of the second stopper (45); The first stopper (41), the second stopper (45) and the third stopper (47) sequentially form a first leaning position (10), a second leaning position (20) and a third leaning position (30).

3. The single slide rear positioning mechanism according to claim 1, characterized in that: The block assembly (4) comprises a first block (41), a first front block fixing plate (42), a block front fixing seat (49) and a block fixing bottom plate (44) which are connected in sequence; and further comprises a second block (45), a first rear block (46), a third block (47) and a second rear block (48); The second stopper (45) and the first rear stopper (46) are fitted on the first front stopper fixing plate (42); the third stopper (47) and the second rear stopper (48) are fitted on one end of the stopper fixing bottom plate (44); the first stopper (41), the second stopper (45) and the third stopper (47) sequentially form a first leaning position (10), a second leaning position (20) and a third leaning position (30).

4. The single slide rear positioning mechanism according to claim 1, characterized in that: The slide assembly (1) comprises a slide support (11), a first screw assembly (12), a first linear module (13), a first drive assembly (14) and a first slide plate (15); one end of the first screw assembly (12) is fixed to one end of the slide support (11), and the other end of the first screw assembly (12) is connected to the first drive assembly (14); The first linear modules (13) are divided into two groups, which are respectively arranged on two sides of the first screw assembly (12) and are respectively parallel to the two sides of the first screw assembly (12); The middle part of the first slide plate (15) is connected to the first screw rod assembly (12), and the two sides of the middle part are connected to the first linear module (13); and the two ends are respectively connected to the lifting assembly (2); The first drive assembly (14) drives the first screw assembly (12) to rotate, so that the first slide plate (15) drives the lifting assembly (2) to slide horizontally along the first linear module (13).

5. The single slide rear positioning mechanism according to claim 4, characterized in that: The first screw assembly (12) comprises a first screw member (121), a screw nut (122), and a nut sleeve (123); The first driving assembly (14) comprises a first motor (141), a first mounting seat (142) and a sliding table bearing seat (143) which are fixed in sequence; One end of the first screw rod (121) passes through the slide bearing seat (143) and the first mounting seat (142) and is connected to the first motor (141); the bottom of the slide bearing seat (143) is fixed to the slide support (11); the first screw rod (121) movably passes through the screw nut (122), and a nut sleeve (123) is sleeved on the outer side of the screw nut (122); the other end of the first screw rod (121) is also provided with a front bearing seat (124), and the first screw rod (121) is fixed to the inner wall of the slide support (11) through the front bearing seat (124); The first slide plate (15) is fixed to the top surface of the nut sleeve (123); The first linear module (13) comprises a first linear slide rail (131), on which a plurality of first linear sliders (132) are provided; the first slider (15) is fixed to the first linear slider (132); and the inner side edges of the slide bearing seat (143) and / or the front bearing seat (124) are provided with a plurality of columnar anti-collision pads (133).

6. The single slide rear positioning mechanism according to claim 4, characterized in that: The lifting assembly (2) comprises a lifting bracket (21), a second motor (22), a first reducer (23), a second screw (24), a ball screw nut (25), a lifting anti-collision pad (26), a lifting screw clamping block (27) and a second linear module (28); the second motor (22) and the first reducer (23) are mounted on the crossbeam assembly (3); the second linear module (28) is arranged at both ends of the first slide plate (15); The second motor (22) is connected to the first reducer (23); a lifting bearing sleeve is provided at the top end of the second screw rod (24), and the second screw rod (24) passes through the lifting bearing sleeve and is connected to the first reducer (23); The second screw rod (24) passes through the ball screw nut (25); the inner side of the ball screw nut (25) is in contact with the second screw rod (24), and the outer side is fixed to the first slide plate (15); The other end of the second screw rod (24) is connected to the lifting anti-collision pad (26) and the lifting screw rod clamping block (27) in sequence; the second motor (22) drives the first reducer (23) to reduce speed to realize the rotation of the second screw rod (24), and the ball screw nut (25) drives the first slide plate (15) to rise and fall along the second linear module (28).

7. The single slide rear positioning mechanism according to claim 6, characterized in that: The second linear module (28) is composed of two groups, including a second linear slide rail (281), a second linear slider (282) and a second lifting slider seat (283); the second linear slide rail (281) is fixed on the inner side of the lifting bracket (21); the second linear slider (282) is movably arranged on the second linear slide rail (281); the second lifting slider seat (283) is fixed on the second linear slider (282), and the two ends of the first slide plate (15) are respectively installed on the second lifting slider seat (283).

8. The single slide rear positioning mechanism according to claim 7, characterized in that: The second lifting slider seat (283) is in a horizontal T-shape.

9. The single slide rear positioning mechanism according to claim 1, characterized in that: The crossbeam assembly (3) comprises a cast aluminum crossbeam (31), a rack (32), a third linear slide rail (33), a third linear slider (34), a third motor (35), a third reducer (36), a rear positioning motor fixing seat (37), a cylindrical gear (38), a rear positioning block seat (39) and a rear positioning block connecting assembly (40); the block assembly (4) is arranged on the rear positioning block seat (39); a rack (32) is arranged on one side of the cast aluminum crossbeam (31), and a third linear slide rail (33) is arranged on the other side; the third linear The linear slider (34) is arranged on the third linear slide rail (33); the third motor (35) is connected to the third reducer (36); the rotating shaft of the third reducer (36) passes through the rear positioning motor fixing seat (37) and is connected to the cylindrical gear (38); the upper side of the rear positioning motor fixing seat (37) is fixed to the rear positioning block seat (39); the end of the rear positioning block seat (39) is fixed to the rear positioning block connecting assembly (40); the cylindrical gear (38) is meshed with the lower side of the rack (32).

10. The single slide rear positioning mechanism according to claim 1, characterized in that: It also includes a fine-tuning module (5), the fine-tuning module (5) is installed below the stopper assembly (4), and the fine-tuning module (5) includes a fine-tuning base (51), a fourth motor (52), a motor base (53), a fourth screw rod (54), and a plurality of nut seats (55); One end of the motor base (53) is connected to the fourth motor (52), and the other end is fixed to the fine-tuning base (51); one end of the fourth screw rod (54) passes through the motor base (53) and is connected to the fourth motor (52); the other end is connected to the fine-tuning base (51); The fourth screw rod (54) is provided with a plurality of fourth linear sliders (56); The nut seat (55) is a structure with two concave surfaces, the bottom surface of the nut seat (55) is connected to the fourth linear slider (56), and the two sides of the top end are fixedly connected to the stopper assembly (4); The fourth linear slider (56) is driven by the fourth motor (52) to drive the nut seat (55) to move forward and backward along the fourth screw rod (54).

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