Double-axis interchanging bending mechanism

Abstract

The utility model relates to the technical field of bending of metal plates or profiles, and particularly discloses a double-axis interchangeable bending mechanism which comprises a pair of bending shafts which are vertically arranged in parallel, a supporting plate assembly and a rotary driving assembly, and the supporting plate assembly comprises a lower supporting plate, a double-axis conversion block, a supporting plate driving device and a top positioning device. The rotation driving assembly comprises a rotating shaft, a sliding plate, a sliding rail fixing plate, a rotating device and a bottom positioning device. According to the double-axis interchangeable bending mechanism, the top positioning device is matched with the supporting plate driving device, the lower supporting plate can move in a reciprocating mode, one of the two bending shafts is concentric with the rotating shaft below, the sliding plate and the sliding rail fixing plate are locked through the bottom positioning device, and therefore the bending effect is achieved. In this way, when the rotating device drives the bending shaft to rotate, the sliding plate cannot drive the lower supporting plate to shake, the overall rigidity of the whole bending mechanism is improved, and therefore the bending precision is guaranteed when metal plates or profiles are bent.

Description

TECHNICAL FIELD

[0001] The utility model relates to plate bending technical field, concretely relates to a double axle core exchange bending mechanism. BACKGROUND

[0002] Metal plate or section is often needed to be bent and formed in the mechanical processing, and this needs to be processed and formed by the aid of bending equipment. When the metal plate or section is bent, one end clamps the material, and the other end rotates around the rotating shaft with the material to realize the bending of the material. At present, the bending equipment on the market has the problem of poor connection rigidity between the bending wheel driving device and the bending wheel driving mechanism, which further leads to poor bending precision when the metal plate or section is bent. SUMMARY

[0003] In view of the defects in the prior art, the utility model aims to provide a double axle core exchange bending mechanism to solve the problems of poor rigidity and poor bending precision of the existing bending equipment.

[0004] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0005] The application provides a double axle core exchange bending mechanism, which comprises:

[0006] A pair of vertically parallel arranged bending shafts;

[0007] A supporting plate assembly comprising a lower supporting plate, a double axle core conversion block, a supporting plate driving device and a top positioning device, a pair of the bending shafts are installed at the top end face of the lower supporting plate, the bending shafts can rotate horizontally relative to the lower supporting plate, the bottom end of the lower supporting plate is in horizontal sliding connection with the double axle core conversion block, the supporting plate driving device is fixedly connected with one side of the lower supporting plate, and the top positioning device is fixedly installed at the top end face of the lower supporting plate;

[0008] A rotating driving assembly comprising a rotating shaft, a sliding plate, a sliding rail fixed plate, a rotating device and a bottom positioning device, the top end face of the sliding plate is fixed to the bottom end of the double axle core conversion block, the bottom end of the sliding plate is in sliding connection with the top end of the sliding rail fixed plate, the sliding direction of the sliding plate is parallel to the sliding direction of the lower supporting plate, the rotating shaft vertically penetrates the sliding plate and the sliding rail fixed plate, the rotating shaft is in rotating connection with the sliding plate and the sliding rail fixed plate respectively, the top end of the rotating shaft is fixedly connected with the bottom end of the double axle core conversion block, the bottom end of the rotating shaft is fixedly connected with the rotating device, the sliding plate and the sliding rail fixed plate can be locked and connected through the bottom positioning device, and the rotating device is fixedly installed at the bottom end of the sliding plate.

[0009] Further, the top positioning device comprises a top jacking cylinder, a top mesa positioning pin and a top guide flange assembly, the top guide flange assembly comprises a top flange seat, a top guide sleeve fixing seat and a top guide sleeve, the top guide sleeve fixing seat is fixedly installed on the top end face of the lower supporting plate, the top flange seat is fixedly installed on the top end face of the top guide sleeve fixing seat, the bottom end of the top mesa positioning pin is fixedly connected with the top jacking cylinder, the top end of the top mesa positioning pin extends outward in sequence through the top guide sleeve fixing seat and the top flange seat in the vertical direction, the top mesa positioning pin and the top guide sleeve fixing seat and the top flange seat form a vertical sliding connection, and the top guide sleeve is sleeved on the outer surface of the top mesa positioning pin between the bottom end face of the top guide sleeve fixing seat and the top end face of the lower supporting plate.

[0010] Further, the top guide flange assembly further comprises a top copper sleeve, and the top guide sleeve is sleeved on the outer surface of the top mesa positioning pin through the top copper sleeve.

[0011] Further, the top positioning device is a pair of top positioning devices, and the pair of top positioning devices are symmetrically arranged on opposite sides of the lower supporting plate.

[0012] Further, the supporting plate driving device comprises a supporting plate servo motor, the supporting plate servo motor is fixedly installed on the motor connecting seat, the motor connecting seat is fixedly installed on one end of the lower supporting plate, the output end of the supporting plate servo motor is fixedly connected with one end of the lead screw, the ball screw nut is installed on the lead screw, and the ball screw nut is fixedly connected with the bottom end face of the lower supporting plate.

[0013] Further, the top end face of the slide rail fixing plate is arranged with a pair of parallel slide rails, and the bottom end face of the slide plate is slidably installed on the pair of slide rails through the slide block.

[0014] Further, the bottom positioning device comprises a bottom jacking cylinder, a bottom table positioning pin, a sliding plate flange and a bottom guide flange assembly, the bottom guide flange assembly comprises a bottom flange seat, a bottom guide sleeve fixing seat and a bottom guide sleeve, the bottom guide sleeve fixing seat is fixedly installed on the top end surface of the sliding rail fixed plate, the bottom flange seat is fixedly installed on the top end surface of the bottom guide sleeve fixing seat, the bottom end of the bottom table positioning pin is fixedly connected with the bottom jacking cylinder, the top end of the bottom table positioning pin extends outward in sequence through the bottom guide sleeve fixing seat and the bottom flange seat in the vertical direction, the bottom table positioning pin is in sliding connection with the bottom guide sleeve fixing seat and the bottom flange seat in the vertical direction, the bottom guide sleeve is sleeved on the outer surface of the bottom table positioning pin and located between the bottom end surface of the bottom guide sleeve fixing seat and the top end surface of the sliding rail fixed plate, the sliding plate flange is fixedly installed on the sliding plate, and the sliding plate flange is provided with a sliding plate pin hole matched with the bottom table positioning pin.

[0015] Further, the bottom guide flange assembly further comprises a bottom copper sleeve, and the bottom guide sleeve is sleeved on the outer surface of the bottom table positioning pin through the bottom copper sleeve.

[0016] Further, the bottom positioning device is a pair of bottom positioning devices, and the pair of bottom positioning devices are symmetrically arranged on opposite sides of the sliding rail fixed plate.

[0017] Further, the sliding rail fixed plate is provided with an opening groove for accommodating the rotating device.

[0018] The double-axis center interchanging bending mechanism has the advantages that:

[0019] By adopting the double-axis center interchanging bending mechanism, the lower supporting plate can move back and forth through the cooperation between the top positioning device and the supporting plate driving device, so that one of the double bending shafts is concentric with the lower rotating shaft, and the sliding plate and the sliding rail fixed plate are locked through the bottom positioning device, so that the sliding plate does not shake the lower supporting plate when the rotating device drives the bending shaft to rotate, the overall rigidity of the whole bending mechanism is improved, and the bending precision of the metal plate or profile during bending is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a perspective structure schematic view of the double-axis center interchanging bending mechanism in the embodiment of the application installed on a workbench.

[0021] Figure 2 It is a top view structure schematic view of the double-axis center interchanging bending mechanism in the embodiment of the application installed on a workbench.

[0022] Figure 3 It is a perspective structure schematic view of the double-axis center interchanging bending mechanism in the embodiment of the application.

[0023] Figure 4 It is the stereogram structure schematic view of the bottom positioning device installed on the slide rail fixed plate in the embodiment of the application.

[0024] Figure 5 It is the stereogram structure schematic view of the bottom positioning device installed on the slide rail fixed plate in the embodiment of the application.

[0025] Figure 6 It is the stereogram structure schematic view of the bottom positioning device installed on the slide rail fixed plate in the embodiment of the application.

[0026] Figure 7 It is the stereogram structure schematic view of the bottom positioning device installed on the slide rail fixed plate in the embodiment of the application. Figure 4

[0027] In the figure:

[0028] 10-biaxial center interchanging bending mechanism, 20-workbench, 21-arc-shaped gap slot, 22-pin hole, 100-bending shaft, 200-plate assembly, 201-lower plate, 202-biaxial center conversion block, 203-plate driving device, 2031-plate servo motor, 2032-motor connecting seat, 204-top positioning device, 2041-top lifting cylinder, 2042-top guide sleeve fixed seat, 2043-top table surface positioning pin, 2044-top guide sleeve, 2045-top flange seat, 300-rotary driving assembly, 301-rotary shaft, 302-slide plate, 303-slide rail fixed plate, 304-rotary device, 305-bottom positioning device, 3051-bottom lifting cylinder, 3052-bottom guide sleeve fixed seat, 3053-bottom table surface positioning pin, 3054-bottom guide sleeve, 3055-bottom flange seat, 306-slide plate flange, 307-opening slot, 400-connecting plate. DETAILED DESCRIPTION

[0029] The utility model will be further explained in detail in combination with the specific embodiments of the description and the drawings.

[0030] Referring to the drawings Figure 1 to the drawings Figure 3 As shown in the drawings, the embodiment provides a biaxial center interchanging bending mechanism 10, which comprises a pair of bending shafts 100, a plate assembly 200 and a rotary driving assembly 300.

[0031] ​The output ends of the pair of bending shafts 100 vertically extend into the workbench 20 and extend outward, and the tabletop of the workbench 20 is formed with two sets of 0-180 degree intersecting arc-shaped gap slots 21, and the output ends of the pair of bending shafts 100 are matched with the two sets of arc-shaped gap slots 21, that is, the output ends of the bending shafts 100 can rotate relative to the arc-shaped gap slots 21. The input ends of the pair of bending shafts 100 are installed in the support plate assembly 200 through the connecting plate 400, and the input ends of the pair of bending shafts 100 are rotatably installed on the connecting plate 400 through the bearings provided, and the connecting plate 400 is fixedly installed in the support plate assembly 200.

[0032] Referring to the accompanying drawings Figure 3 and the accompanying drawings Figure 4 As shown in the drawings, the support plate assembly 200 includes a lower support plate 201, a double shaft center conversion block 202, a support plate driving device 203, and a top positioning device 204. The top end surface of the lower support plate 201 is fixedly connected to the bottom end of the connecting plate 400, and a sliding rail and a sliding groove are formed between the bottom end of the lower support plate 201 and the top end surface of the double shaft center conversion block 202, that is, the lower support plate 201 and the double shaft center conversion block 202 can move relative to each other.

[0033] The support plate driving device 203 is installed at one end of the lower support plate 201 and is used to drive the relative movement between the lower support plate 201 and the double shaft center conversion block 202.

[0034] In this embodiment, the support plate driving device 203 includes a support plate servo motor 2031, which is fixedly installed on a motor connecting seat 2032 provided, and the motor connecting seat 2032 is fixedly installed at one end of the lower support plate 201. The output end of the support plate servo motor 2031 is fixedly connected to one end of a lead screw arranged between the bottom end surface of the lower support plate 201 and the top end surface of the double shaft center conversion block 202. A ball screw nut is installed on the lead screw and is fixedly connected to the bottom end surface of the lower support plate 201. In this way, when the support plate servo motor 2031 drives the lead screw to rotate, the lead screw will drive the ball screw nut on it to move, and the ball screw nut in the moving state will in turn synchronously drive the lower support plate 201 fixedly connected thereto to move, thereby realizing the relative movement between the lower support plate 201 and the double shaft center conversion block 202. It should be noted that the support plate driving device 203 can also use other common driving mechanisms, such as a pneumatic cylinder driving mechanism, without limitation.

[0035] The top positioning device 204 is installed at the upper end surface of the connecting plate 400, and the top positioning device 204 can be a pair, which is symmetrically arranged on opposite sides of the connecting plate 400. The top positioning device 204 is used to cooperate with the workbench 20, and the connecting plate 400 can be locked with the workbench 20 through the top positioning device 204, that is, the connecting plate 400 and the workbench 20 cannot move relative to each other.

[0036] Referring to the drawings Figure 4 and the drawings Figure 7 As shown in the drawings, in the present embodiment, the top positioning device 204 comprises a top jacking cylinder 2041, a top mesa positioning pin 2043, and a top guide flange assembly comprising a top flange seat 2045, a top guide sleeve 2044 fixing seat 2042, and a top guide sleeve 2044. The top guide sleeve fixing seat 2042 is fixedly installed on the top end face of the lower supporting plate 201, the top flange seat 2045 is fixedly installed on the top end face of the top guide sleeve fixing seat 2042, the bottom end of the top mesa positioning pin 2043 is fixedly connected with the top jacking cylinder 2041, the top end of the top mesa positioning pin 2043 extends outward in turn through the top guide sleeve fixing seat 2042 and the top flange seat 2045 in the vertical direction, the top mesa positioning pin 2043 forms a vertical sliding connection with the top guide sleeve fixing seat 2042 and the top flange seat 2045, and the top guide sleeve 2044 is sleeved on the outer surface of the top mesa positioning pin 2043 between the bottom end face of the top guide sleeve fixing seat 2042 and the top end face of the lower supporting plate 201. In some embodiments, the top guide sleeve 2044 is sleeved on the outer surface of the top mesa positioning pin 2043 by the top copper sleeve provided to improve the wear resistance between the top guide sleeve 2044 and the top mesa positioning pin 2043.

[0037] Referring to the drawings Figure 2 and the drawings Figure 3 As shown in the drawings, the mesa of the workbench 20 is provided with a pin hole 22 corresponding thereto. When it is necessary to adjust the position of the double-axis sliding block, the jacking cylinder in the top positioning device 204 is driven to move the top mesa positioning pin 2043 upward, so that the top mesa positioning pin 2043 extends into the pin hole 22 on the workbench 20. At this time, the lower supporting plate 201 is fixedly integrated with the workbench 20, and relative movement cannot occur between the two. At this time, the servo motor is actuated. Since the lower supporting plate 201 is fixed on the workbench 20 at this time, the double-axis conversion block 202 can move relative to the lower supporting plate 201. The double-axis conversion block 202 in the moving state drives the rotating shaft 301 (described in detail below) connected below it to move, so that the rotating shaft 301 is concentric with one of the pair of bent shafts 100.

[0038] Referring to the drawings Figure 3 and the drawings Figure 5As shown, in the embodiment, the rotating driving assembly 300 comprises a rotating shaft 301, a sliding plate 302, a sliding rail fixing plate 303, a rotating device 304 and a bottom positioning device 305. The top end surface of the sliding plate 302 is fixed to the bottom end of the double-shaft center conversion block 202, the bottom end of the sliding plate 302 is in sliding connection with the top end of the sliding rail fixing plate 303, the sliding direction of the sliding plate 302 is parallel to the sliding direction of the lower supporting plate 201, the rotating shaft 301 vertically penetrates through the sliding plate 302 and the sliding rail fixing plate 303, the rotating shaft 301 is in rotating connection with the sliding plate 302 and the sliding rail fixing plate 303 respectively, the top end of the rotating shaft 301 is fixedly connected to the bottom end of the double-shaft center conversion block 202, the bottom end of the rotating shaft 301 is fixedly connected with the rotating device 304, the sliding plate 302 and the sliding rail fixing plate 303 can be locked and connected through the bottom positioning device 305, and the rotating device 304 is fixedly installed at the bottom end of the sliding plate 302.

[0039] Referring to the accompanying drawings Figure 5 and the accompanying drawings Figure 6 As shown, the opening groove 307 is formed on the sliding rail fixing plate 303, and the opening direction of the opening groove 307 is parallel to the moving direction of the sliding plate 302. Thus, when the sliding plate 302 moves relative to the sliding rail fixing plate 303, the sliding plate 302 will drive the rotating device 304 below the sliding plate 302 to move synchronously, and the opening groove 307 provides a space for the rotating device 304 to move.

[0040] Referring to the accompanying drawings Figure 5 and the accompanying drawings Figure 6 As shown, in the embodiment, the bottom positioning device 305 can be a pair, and the pair of bottom positioning devices 305 are symmetrically arranged on opposite sides of the sliding rail fixing plate 303. The bottom positioning device 305 is used for locking the sliding plate 302 and the sliding rail fixing plate 303, that is, the sliding plate 302 and the sliding rail fixing plate 303 cannot move relative to each other.

[0041] In the embodiment, the bottom positioning device 305 comprises a bottom jacking cylinder 3051, a bottom table positioning pin 3053, a sliding plate flange 306, and a bottom guide flange assembly. The bottom guide flange assembly comprises a bottom flange seat 3055, a bottom guide sleeve fixing seat 3052, and a bottom guide sleeve 3054. The bottom guide sleeve fixing seat 3052 is fixedly installed at the top end face of the sliding rail fixing plate 303. The bottom flange seat 3055 is fixedly installed at the top end face of the bottom guide sleeve fixing seat 3052. The bottom end of the bottom table positioning pin 3053 is fixedly connected with the bottom jacking cylinder 3051. The top end of the bottom table positioning pin 3053 vertically and sequentially penetrates through the bottom guide sleeve fixing seat 3052 and the bottom flange seat 3055 to outwardly extend. The bottom table positioning pin 3053 forms a vertical sliding connection with the bottom guide sleeve fixing seat 3052 and the bottom flange seat 3055. The bottom guide sleeve 3054 is sleeved on the outer surface of the bottom table positioning pin 3053 between the bottom end face of the bottom guide sleeve fixing seat 3052 and the top end face of the sliding rail fixing plate 303. The sliding plate flange 306 is fixedly installed on the sliding plate 302. The sliding plate flange 306 is provided with a sliding plate pin hole which is clamped and matched with the bottom table positioning pin 3053. A pair of sliding plate flanges 306 are arranged at each side of the sliding plate 302. Thus, by matching the bottom table positioning pin 3053 with the sliding plate flanges 306 at different positions, the rotating shaft 301 can be concentrically matched with a pair of bending shafts 100 respectively, so as to meet different bending requirements.

[0042] In some embodiments, the bottom guide sleeve 3054 is sleeved on the outer surface of the bottom table positioning pin 3053 through the arranged bottom copper sleeve, so as to improve the wear resistance between the bottom guide sleeve 3054 and the bottom table positioning pin 3053.

[0043] In order to better understand the double-axis center exchange bending mechanism 10 in the embodiment, the working principle thereof is described as follows:

[0044] When bending, the top jacking cylinder 2041 first drives the top table positioning pin 2043 to extend outward, so that the top table positioning pin 2043 is inserted into the pin hole on the workbench 20, the lower supporting plate 201 and the workbench 20 are fixed as a whole, and relative movement cannot be generated between the two; then, the servo motor acts, since the lower supporting plate 201 is fixed on the workbench 20 at this time, the double-axis conversion block 202 in the moving state can drive the rotating shaft 301 connected below to move, so that the rotating shaft 301 is concentric with one of the pair of bending shafts 100; then the bottom jacking cylinder 3051 drives the bottom table positioning pin 3053 to extend outward, so that the bottom table positioning pin 3053 is inserted into the slide plate pin hole on the slide plate flange 306, the fixing between the slide plate 302 and the slide rail fixed plate 303 is realized, at the same time, the top jacking cylinder 2041 drives the top table positioning pin 2043 to retract and reset, finally the rotating device 304 drives the rotating shaft 301 to drive the double-axis conversion block 202 above to rotate, and the bending shaft 100 concentric with the rotating shaft 301 at this time is used to rotate along the arc gap groove 21 on the workbench 20 table surface relative to the other bending shaft 100, so as to realize the bending forming work of the metal plate or profile.

[0045] In the above bending process, through the cooperation between the top positioning device 204 and the supporting plate driving device 203, the lower supporting plate 201 can reciprocate, so that one of the double bending shafts 100 is concentric with the rotating shaft 301 below, and the slide plate 302 and the slide rail fixed plate 303 are locked by the bottom positioning device 305, so that when the rotating device 304 drives the bending shaft 100 to rotate, the slide plate 302 cannot drive the lower supporting plate 201 to shake, the overall rigidity of the whole bending mechanism is improved, so as to ensure the bending precision of the metal plate or profile when bending.

[0046] Obviously, those skilled in the art can make various modifications and variations to the present application without departing from the spirit and scope of the present application. Therefore, if these modifications and variations of the present application belong to the scope of the claims of the present application and equivalent technologies, the present application also intends to include these modifications and variations.

Claims

1. A two-axis interchange bending mechanism, characterized by, The utility model relates to a kind of bending machine, including: A pair of bending shafts arranged vertically and in parallel; A pair of the bending shafts are installed at the top end surface of the lower support plate, and the bending shafts can rotate horizontally relative to the lower support plate, the bottom end of the lower support plate is connected to the double-shaft center conversion block in a horizontal sliding manner, the support plate driving device is fixedly connected to one side of the lower support plate, and the top positioning device is fixedly installed on the top end surface of the lower support plate; A rotary driving assembly includes a rotary shaft, a sliding plate, a sliding rail fixed plate, a rotary device, and a bottom positioning device. The top end surface of the sliding plate is fixed to the bottom end of the double-shaft center conversion block. The bottom end of the sliding plate is connected to the top end of the sliding rail fixed plate in a sliding manner. The sliding direction of the sliding plate is parallel to the sliding direction of the lower support plate. The rotary shaft vertically penetrates the sliding plate and the sliding rail fixed plate. The rotary shaft is connected to the sliding plate and the sliding rail fixed plate in a rotating manner. The top end of the rotary shaft is fixedly connected to the bottom end of the double-shaft center conversion block. The bottom end of the rotary shaft is fixedly connected to the rotary device. The sliding plate and the sliding rail fixed plate can be locked and connected by the bottom positioning device. The rotary device is fixedly installed on the bottom end of the sliding plate. The top positioning device includes a top lifting cylinder, a top table positioning pin, and a top guide flange assembly. The top guide flange assembly includes a top flange seat, a top guide sleeve fixed seat, and a top guide sleeve. The top guide sleeve fixed seat is fixedly installed on the top end surface of the lower support plate. The top flange seat is fixedly installed on the top end surface of the top guide sleeve fixed seat. The bottom end of the top table positioning pin is fixedly connected to the top lifting cylinder. The top end of the top table positioning pin vertically and outwardly extends through the top guide sleeve fixed seat and the top flange seat in sequence. The top table positioning pin is connected to the top guide sleeve fixed seat and the top flange seat in a vertical sliding manner. The top guide sleeve is sleeved on the outer surface of the top table positioning pin between the bottom end surface of the top guide sleeve fixed seat and the top end surface of the lower support plate.

2. The dual-axis interchange bending mechanism of claim 1, wherein, The top guide flange assembly further includes a top copper sleeve. The top guide sleeve is sleeved on the outer surface of the top table positioning pin through the top copper sleeve.

3. The dual-axis interchange bending mechanism according to any one of claims 1 to 2, characterized in that The top positioning device is a pair of devices arranged symmetrically on opposite sides of the lower support plate.

4. The dual-axis interchange bending mechanism of claim 1, wherein, The support plate driving device includes a support plate servo motor. The support plate servo motor is fixedly installed on a motor connecting seat. The motor connecting seat is fixedly installed on one end of the lower support plate. The output end of the support plate servo motor is fixedly connected to one end of a lead screw. A ball screw nut is installed on the lead screw. The ball screw nut is fixedly connected to the bottom end surface of the lower support plate.

5. The dual-axis interchange bending mechanism of claim 1, wherein, The top end surface of the sliding rail fixed plate is arranged with a pair of parallel sliding rails. The bottom end surface of the sliding plate is slidably installed on the pair of sliding rails through a sliding block.

6. The dual-axis interchange bending mechanism according to claim 1 or 5, wherein The bottom positioning device comprises a bottom jacking cylinder, a bottom table positioning pin, a sliding plate flange and a bottom guide flange assembly, the bottom guide flange assembly comprises a bottom flange seat, a bottom guide sleeve fixing seat and a bottom guide sleeve, the bottom guide sleeve fixing seat is fixedly installed on the top end surface of the sliding rail fixing plate, the bottom flange seat is fixedly installed on the top end surface of the bottom guide sleeve fixing seat, the bottom end of the bottom table positioning pin is fixedly connected with the bottom jacking cylinder, the top end of the bottom table positioning pin extends outward in sequence through the bottom guide sleeve fixing seat and the bottom flange seat in the vertical direction, the bottom table positioning pin is in sliding connection with the bottom guide sleeve fixing seat and the bottom flange seat in the vertical direction, the bottom guide sleeve is sleeved on the outer surface of the bottom table positioning pin between the bottom end surface of the bottom guide sleeve fixing seat and the top end surface of the sliding rail fixing plate, the sliding plate flange is fixedly installed on the sliding plate, and the sliding plate flange is provided with a sliding plate pin hole matched with the bottom table positioning pin.

7. The dual-axis interchange bending mechanism of claim 6, wherein, The bottom guide flange assembly further comprises a bottom copper sleeve, and the bottom guide sleeve is sleeved on the outer surface of the bottom table positioning pin through the bottom copper sleeve.

8. The dual-axis interchange bending mechanism of claim 7, wherein, The bottom positioning device is a pair of symmetrically arranged bottom positioning devices on opposite sides of the sliding rail fixing plate.

9. The dual-axis interchange bending mechanism of claim 1, wherein, The sliding rail fixing plate is provided with an open slot for accommodating the rotating device.

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