Production line quick change system

Abstract

The invention relates to the technical field of locomotives, and provides a production line quick change system which comprises a tool, two first quick mounting devices and a second quick mounting device. The two first fast-assembling devices can be detachably connected with the two ends of the tool correspondingly, and the two first fast-assembling devices are used for being detachably connected with the head position changing machine and the tail position changing machine correspondingly; the second quick-mounting device can be detachably connected to the position between the two ends of the tool and can be detachably connected with the L-shaped positioner. The production line quick-change system can improve the assembly speed of the production line.

Description

Technical Field

[0001] The present invention relates to the technical field of locomotives, and in particular to a production line quick-change system. Background Art

[0002] In the prior art, different workstations require different tooling, and correspondingly, different tooling needs to be configured with different types of positioners, which results in manual intervention in tooling switching between different workstations, low production efficiency, and easy production bottlenecks.

[0003] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present disclosure, and therefore may include information that does not constitute the prior art known to ordinary technicians in the field. Summary of the invention

[0004] The present invention provides a production line quick change system, characterized in that the production line quick change system comprises:

[0005] A tooling device, wherein the tooling device is used for clamping a workpiece;

[0006] Two first quick-install devices, the two first quick-install devices can be detachably connected to the two ends of the tooling, and the two first quick-install devices are used to be detachably connected to the head positioner and the tail positioner respectively;

[0007] The second quick-install device can be detachably connected to a position between two ends of the tooling, and the second quick-install device can be detachably connected to the L-shaped positioner.

[0008] In an exemplary embodiment of the present disclosure, the tooling includes:

[0009] Conformal main beam;

[0010] A pressing and tightening device is arranged on the conformal main beam, and is used to press or tighten the workpiece;

[0011] A supporting device is movably connected to the conformal main beam, and the supporting device can move along the extension direction of the conformal main beam, and the supporting device is used to support a workpiece.

[0012] In an exemplary embodiment of the present disclosure, the first quick-install device includes:

[0013] A support body, the support body comprising a fixedly connected connecting plate, a supporting base, and a supporting side seat, the connecting plate being detachably connected to the head positioner or the tail positioner, the supporting side seat comprising a supporting top plate, the supporting top plate and the supporting base being arranged opposite to each other;

[0014] A driving mechanism is disposed in the supporting base;

[0015] A screw, wherein the first end of the screw is located in the support base, the driving mechanism is used to drive the screw to rotate, and the second end of the screw is threadedly connected to the support top plate;

[0016] A rack is disposed in the supporting side seat, and the rack extends along the extension direction of the screw rod;

[0017] The clamping assembly is fixed on the screw rod, and the clamping assembly is movably connected to the rack.

[0018] In an exemplary embodiment of the present disclosure, the first quick-loading device further includes:

[0019] Two stop plates are arranged on the support base, the two stop plates are arranged opposite to each other, and a stop space for accommodating the tooling is formed between the two stop plates;

[0020] Two guide plates, the two guide plates and the two stop plates are arranged in one-to-one correspondence, the guide plates are fixed to the side faces of the corresponding stop plates facing the stop space, the side faces of the guide plates facing the stop space form an inclined surface, and the distance between the inclined surfaces on the two guide plates gradually increases from the side away from the support base to the side close to the support base;

[0021] A support plate, arranged on the support base, the support plate is arranged between the two stop plates, and the support plate is used to support the tooling;

[0022] A positioning pin is arranged on the support base, the positioning pin is arranged between the two stop plates, the positioning pin and the positioning hole on the tooling are matched, and the positioning pin is used to be inserted into the positioning hole.

[0023] In an exemplary embodiment of the present disclosure, the pressing assembly comprises:

[0024] A pressing support, the pressing support is fixed on the screw rod, and the pressing support is slidably connected to the rack along the extension direction of the rack;

[0025] A clamping piece is fixed to the side of the clamping support facing the support base, a clamping groove is formed on the side of the clamping piece facing the support base, and a partial structure of the tooling is used to match and be arranged in the clamping groove.

[0026] In an exemplary embodiment of the present disclosure, the driving mechanism includes an output shaft, an extension direction of the output shaft intersects with an extension direction of the screw rod, and the output shaft drives the screw rod to rotate via a bevel gear.

[0027] In an exemplary embodiment of the present disclosure, the second quick-install device includes:

[0028] A quick connection plate, the quick connection plate is used to be detachably connected to the tooling;

[0029] A quick-change chassis, the quick-change chassis is used to be detachably connected to the L-shaped positioner;

[0030] The quick-release assembly is arranged between the quick-connection plate and the quick-change chassis, and the quick-release assembly is used for disassembling and assembling the quick-connection plate and the quick-change chassis.

[0031] In an exemplary embodiment of the present disclosure, the quick connection plate comprises:

[0032] a first connection plate;

[0033] A second connection disk, arranged opposite to the first connection disk;

[0034] An annular connecting rib is fixed between the first connecting plate and the second connecting plate.

[0035] In an exemplary embodiment of the present disclosure, the quick-install assembly includes a clamping device, and the clamping device includes:

[0036] A first driving device, fixed on the quick-change chassis;

[0037] A first pressing wedge is fixed to the inner side of the annular connecting rib;

[0038] The second clamping wedge is fixed on the first driving device, and the first driving device can drive the second clamping wedge to move radially along the quick-change chassis so that the second clamping wedge and the first clamping wedge are compressed or spaced apart.

[0039] In an exemplary embodiment of the present disclosure, the quick-install assembly includes an anti-falling device, and the anti-falling device includes:

[0040] A second driving device is fixed on the quick-change chassis;

[0041] An anti-slip seat, the anti-slip seat is fixed to the inner side of the annular connecting rib, and a through hole is formed on the inner side of the anti-slip seat away from the annular connecting rib;

[0042] The anti-dropout pin is fixed on the second driving device, and the second driving device can drive the anti-dropout pin to move radially along the quick-change chassis so that the anti-dropout pin can be inserted into the through hole of the anti-dropout seat, or be separated from the through hole of the anti-dropout seat.

[0043] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] In order to better understand the present disclosure, reference may be made to the embodiments shown in the following drawings. The components in the drawings are not necessarily to scale, and related elements may be omitted in order to emphasize and clearly illustrate the technical features of the present disclosure. In addition, related elements or components may have different arrangements as known in the art. In addition, in the drawings, the same reference numerals represent the same or similar components in each drawing.

[0045] in:

[0046] Figure 1 It is a structural schematic diagram of an exemplary embodiment of the production line quick change system disclosed in the present invention;

[0047] Figure 2 It is a structural schematic diagram of the first quick-loading device in the production line quick-changing system disclosed in the present invention;

[0048] Figure 3 for Figure 2 A cross-sectional view of the first quick-install device shown;

[0049] Figure 4 for Figure 2 A front view of the first quick-install device shown;

[0050] Figure 5 for Figure 2 A side view of the first quick-install device shown;

[0051] Figure 6 for Figure 2 A top view of the first quick-install device shown;

[0052] Figure 7 It is a structural schematic diagram of the second quick-loading device in the production line quick-changing system disclosed in the present invention;

[0053] Figure 8 for Figure 7 A cross-sectional view of the second quick-loading device shown;

[0054] Fig. 9 It is a schematic diagram of the structure of the tooling in the production line quick change system disclosed in the present invention;

[0055] Fig.10 for Fig. 9 a bottom view of the tooling shown;

[0056] Fig.11 for Fig. 9 a side view of the tooling shown;

[0057] Fig.12 for Fig. 9 A top view of the tooling shown. DETAILED DESCRIPTION

[0058] The following will be combined with the accompanying drawings in the exemplary embodiments of the present disclosure to clearly and completely describe the technical solutions in the exemplary embodiments of the present disclosure. The exemplary embodiments described herein are only for illustrative purposes and are not intended to limit the scope of protection of the present disclosure. Therefore, it should be understood that various modifications and changes can be made to the exemplary embodiments without departing from the scope of protection of the present disclosure.

[0059] In the description of the present disclosure, unless otherwise clearly specified and limited, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance; the term "plurality" refers to two or more; the term "and / or" includes any and all combinations of one or more associated listed items. In particular, reference to "the / the" object or "an" object is also intended to indicate one of a possible plurality of such objects.

[0060] Unless otherwise specified or explained, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, an integral connection, an electrical connection, or a signal connection; "connection" can be a direct connection or an indirect connection through an intermediate medium. For those skilled in the art, the specific meanings of the above terms in this disclosure can be understood according to specific circumstances.

[0061] Further, in the description of the present disclosure, it should be understood that the directional words such as "upper", "lower", "inner", "outer" and the like described in the exemplary embodiments of the present disclosure are described at the angles shown in the accompanying drawings and should not be understood as limitations on the exemplary embodiments of the present disclosure. It should also be understood that, in the context, when it is mentioned that an element or feature is connected to one or more "upper", "lower", or "inner", "outer" of another element, it can not only be directly connected to the "upper", "lower", "inner", "outer" of another element or elements, but can also be indirectly connected to the "upper", "lower", "inner", "outer" of another element or elements through an intermediate element.

[0062] like Figure 1 The figure shows a schematic diagram of the structure of an exemplary embodiment of the production line quick-change system disclosed in the present invention. The production line quick-change system comprises: a tool 1, two first quick-change devices 2, and a second quick-change device 3. The tool 1 is used to clamp the workpiece; the two first quick-change devices 2 can be detachably connected to the two ends of the tool 1, and the two first quick-change devices 2 are used to be detachably connected to the head positioner and the tail positioner respectively; the second quick-change device 3 can be detachably connected to the position between the two ends of the tool, and the second quick-change device 3 can be detachably connected to the L-shaped positioner.

[0063] In this exemplary embodiment, the tooling 1 is set as a universal tooling, and multiple functions can be integrated on the tooling 1. At the same time, the first quick-loading device 2, the second quick-loading device 3 and the tooling 1 are detachably arranged to realize the rapid rotation of the tooling at different workstations. For example, when the first workstation needs to implement the process operation through the head-to-tail positioner, the required tooling can be transported to the first workstation by the transport equipment (RGV / AGV), and the tooling 1 and the head-to-tail positioner can be quickly connected by the first quick-loading device 2; when the second workstation needs to implement the process operation through the L-type positioner, the required tooling can be transported to the second workstation by the transport equipment (RGV / AGV), and the tooling 1 and the L-type positioner can be quickly connected by the second quick-loading device 3.

[0064] In this exemplary embodiment, Figure 2-6 As shown, Figure 2 This is a schematic diagram of the structure of the first quick-loading device in the production line quick-changing system disclosed in the present invention. Figure 3 for Figure 2 A cross-sectional view of the first quick-loading device is shown, Figure 4 for Figure 2 A front view of the first quick-loading device is shown, Figure 5 for Figure 2 A side view of the first quick-loading device is shown, Figure 6 for Figure 2 A top view of the first quick-loading device is shown.

[0065] In this exemplary embodiment, Figure 2-6 As shown, the first quick-loading device 2 may include: a supporting body 21, a driving mechanism 22, a screw rod 23, a rack 24, and a clamping assembly 25. The supporting body 21 includes a fixedly connected connecting plate 211, a supporting base 212, and a supporting side seat 213, wherein the connecting plate 211 can be detachably connected to the head positioner or the tail positioner, and the supporting side seat 213 includes a supporting top plate 2131, wherein the supporting top plate 2131 and the supporting base 212 are arranged opposite to each other; the driving mechanism 22 is arranged in the supporting base 212; the first end of the screw rod 23 is located in the supporting base 212, and the driving mechanism 22 is used to drive the screw rod 23 to rotate, and the second end of the screw rod 23 is threadedly connected to the supporting top plate 2131; the rack 24 is arranged in the supporting side seat 213, and the rack 24 extends along the extending direction of the screw rod 23; the clamping assembly 25 is fixed on the screw rod 23, and the clamping assembly 25 is movably connected to the rack 24.

[0066] In this exemplary embodiment, Figure 2-6As shown, the clamping assembly 25 and the support base 212 can be used to place the tool 1. When the driving mechanism 22 drives the screw 23 to rotate, the screw 23 will move along its axial direction, so that the distance between the clamping assembly 25 and the support base 212 can be controlled. When the first quick-install device 2 and the tool need to be fixedly connected, the distance between the clamping assembly 25 and the support base 212 can be shortened, so that the tool 1 is tightened between the clamping assembly 25 and the support base 212; when the first quick-install device 2 and the tool need to be fixedly disassembled, the distance between the clamping assembly 25 and the support base 212 can be increased, so that the tool 1 is taken out from between the clamping assembly 25 and the support base 212.

[0067] In this exemplary embodiment, Figure 2-6 As shown, the first quick-install device 2 may further include: a first reinforcing rib 214, a second reinforcing rib 215, and a third reinforcing rib 216. The first reinforcing rib 214 is fixed to the connecting plate 211 and the supporting top plate 2131; the second reinforcing rib 215 is fixed to the supporting base 212 and the connecting plate 211; the third reinforcing rib 216 is fixed to the supporting base 212 and the connecting plate 211. A screw mounting seat 217 is provided on the supporting top plate 2131, and the supporting top plate 2131 is threadedly connected to the screw through the screw mounting seat 217.

[0068] In this exemplary embodiment, Figure 2-6 As shown, the first quick-install device 2 further includes: two stop plates 26 , two guide plates 27 , a support plate 28 , and a positioning pin 29 . Two stop plates 26 are arranged on the support base 212, and the two stop plates 26 are arranged opposite to each other, and a stop space for accommodating the tooling 1 is formed between the two stop plates 26; two guide plates 27 and the two stop plates 26 are arranged one by one, and the guide plates 27 are fixed to the side of the corresponding stop plates 26 facing the stop space, and the side of the guide plates 27 facing the stop space forms an inclined surface, and the distance between the inclined surfaces on the two guide plates 27 gradually increases from the side away from the support base 212 to the side close to the support base 212; a support plate 28 is arranged on the support base 212, and the support plate 28 is arranged between the two stop plates 26, and the support plate 28 is used to support the tooling 1; a positioning pin 29 is arranged on the support base 212, and the positioning pin 29 is arranged between the two stop plates 26, and the positioning pin 29 is matched with the positioning hole on the tooling 1, and the positioning pin 19 is used to be inserted into the positioning hole.

[0069] The guide plate 27 can facilitate the installation of the tooling 1 between the two stop plates 26 . The stop plates 26 can limit the position of the tooling. The positioning pins 29 can position the tooling 1 . The support plate 28 is used to support the tooling.

[0070] In this exemplary embodiment, Figure 2-6 As shown, the support body 21 further includes: a first protective cover 218 , and the first protective cover 218 is fixed on the support side seat 213 and the support base 212 .

[0071] In this exemplary embodiment, Figure 2-6 As shown, the clamping assembly 25 includes: a clamping support 251 and a clamping member 252. The clamping support 251 is fixed on the screw rod 23, and the clamping support 251 is slidably connected to the rack 24 along the extension direction of the rack 24; the clamping member 252 is fixed to the side of the clamping support 251 facing the support base 212, and a clamping groove is formed on the side of the clamping member 252 facing the support base 212, and a part of the structure of the tooling is used to match and be arranged in the clamping groove.

[0072] In this exemplary embodiment, Figure 2-6 As shown, the clamping assembly 25 may further include: a fourth reinforcing rib 253 and a second protective cover 254. The fourth reinforcing rib 253 may be fixedly connected to the second protective cover 254 and the clamping support 251 respectively, and the second protective cover 254 may be fixedly connected to the clamping support 251. The second protective cover 254 is used to protect the screw and the rack in the support side seat 213.

[0073] In this exemplary embodiment, Figure 2-6 As shown, the driving mechanism 22 may include an output shaft 221 , the extension direction of the output shaft 221 intersects with the extension direction of the screw rod 23 , and the output shaft 221 may drive the screw rod 23 to rotate via a bevel gear.

[0074] In this exemplary embodiment, Figure 7-8 As shown, Figure 7 This is a schematic diagram of the structure of the second quick-loading device in the production line quick-changing system disclosed in the present invention. Figure 8 for Figure 7 A cross-sectional view of the second quick-loading device is shown.

[0075] In this exemplary embodiment, Figure 7-8 As shown, the second quick-install device 3 includes: a quick-connection plate 31, a quick-change chassis 32, and a quick-install assembly. The quick-connection plate 31 is used to be detachably connected to the tooling 1; the quick-change chassis 32 is used to be detachably connected to the L-shaped positioner; the quick-install assembly is arranged between the quick-connection plate 31 and the quick-change chassis 32, and the quick-install assembly is used to disassemble and assemble the quick-connection plate 31 and the quick-change chassis 32.

[0076] When assembling the second quick-install device and the tooling, the quick-connecting plate 31 and the tooling can be fixedly connected first, the quick-change chassis 32 and the L-shaped positioner can be fixedly connected, and then the quick-connecting plate 31 and the quick-change chassis 32 can be assembled through the quick-install assembly.

[0077] In this exemplary embodiment, Figure 7-8 As shown, the quick connection plate 31 includes: a first connection plate 311, a second connection plate 312, and an annular connection rib 313. The second connection plate 312 is arranged opposite to the first connection plate 311; the annular connection rib 313 is fixed between the first connection plate 311 and the second connection plate 312.

[0078] In this exemplary embodiment, Figure 7-8 As shown, the quick connection disk 31 may also include a plurality of fifth reinforcing ribs 314 , which are arranged at intervals along the circumference of the first connection disk 311 , and the fifth reinforcing ribs 314 are respectively fixed to the first connection disk 311 , the second connection disk 312 , and the annular connection rib 313 .

[0079] In this exemplary embodiment, Figure 7-8 As shown, the quick-install assembly may include a clamping device, which includes: a first drive device 331, a first clamping wedge block 332, and a second clamping wedge block 333. The first drive device 331 is fixed to the quick-change chassis 32; the first clamping wedge block 332 is fixed to the inner side of the annular connecting rib 313, and the second clamping wedge block 333 is fixed to the first drive device 331. The first drive device 331 can drive the second clamping wedge block 333 to move along the radial direction of the quick-change chassis 32, so that the second clamping wedge block 333 and the first clamping wedge block 332 are clamped or spaced apart. When the second clamping wedge block 333 and the first clamping wedge block 332 are clamped, the quick connection plate 31 and the quick-change chassis 32 are fixedly connected; when the second clamping wedge block 333 and the first clamping wedge block 332 are spaced apart, the quick connection plate 31 and the quick-change chassis 32 are disconnected.

[0080] In this exemplary embodiment, Figure 7-8 As shown, the first pressing wedge block 332 can be fixed to the inner side of the annular connecting rib 313 through a reinforcing bottom plate 334. The first driving device 331 can be fixed to the quick-change chassis 32 through a base 335. The first driving device 331 can be a structure such as a cylinder or an oil cylinder.

[0081] In this exemplary embodiment, Figure 7-8As shown, the quick-install assembly may also include an anti-dropping device, which includes: a second drive device 341, an anti-dropping seat 342, and an anti-dropping pin 343. The second drive device 341 is fixed to the quick-change chassis 32; the anti-dropping seat 342 is fixed to the inner side of the annular connecting rib 313, and the anti-dropping seat 342 is formed with a through hole on the inner side away from the annular connecting rib 313; the anti-dropping pin 343 is fixed to the second drive device 341, and the second drive device 341 can drive the anti-dropping pin 343 to move along the radial direction of the quick-change chassis 32, so that the anti-dropping pin 343 can be inserted into the through hole of the anti-dropping seat 342, or disengaged from the through hole of the anti-dropping seat 342. When the anti-dropping pin 343 is inserted into the through hole of the anti-dropping seat 342, the anti-dropping device can further strengthen the connection between the quick connection disk 31 and the quick-change chassis 32, and prevent the quick connection disk 31 and the quick-change chassis 32 from being disengaged.

[0082] In this exemplary embodiment, Figure 7-8 As shown, the second driving device 341 can also be a structure such as a cylinder or an oil cylinder. The anti-slip seat 342 can be fixedly connected to the inner side of the annular connecting rib 313 through the reinforcing seat 344. A through hole communicating with the through hole on the anti-slip seat 342 can be formed on the reinforcing seat 344, and the anti-slip pin 343 can be inserted into the through hole of the reinforcing seat 344.

[0083] In this exemplary embodiment, Figure 7-8 As shown, the second quick-release device may further include a positioning assembly, the positioning assembly including a positioning protrusion 352 and a positioning seat 351, the positioning seat 351 may be fixedly connected to the second connecting disk 312, a positioning groove is formed on the side of the positioning seat 351 away from the second connecting disk 312, the positioning protrusion 352 and the quick-change chassis 32 are fixedly connected, and the quick connecting disk 31 and the quick-change chassis 32 may be quickly positioned by matching the positioning protrusion 352 in the positioning groove.

[0084] In this exemplary embodiment, Figure 9-12 As shown, Fig. 9 This is a schematic diagram of the structure of the tooling in the production line quick change system disclosed in the present invention. Fig.10 for Fig. 9 Bottom view of the tooling shown, Fig.11 for Fig. 9 A side view of the tooling shown, Fig.12 for Fig. 9 A top view of the tooling shown.

[0085] The tooling 1 may include: a conformable main beam 11, a clamping and tightening device 12, and a supporting device 13. The clamping and tightening device 12 is arranged on the conformable main beam 11, and the clamping and tightening device 12 is used to clamp or tighten the workpiece; the supporting device 13 is movably connected to the conformable main beam 11, and the supporting device 13 can move along the extension direction of the conformable main beam 11, and the supporting device 13 is used to support the workpiece.

[0086] In this exemplary embodiment, Figure 9-12 As shown, the pressing and jacking device 12 includes a pressing device 121 and a jacking device 122, wherein the pressing device 121 is used to press the workpiece, and the jacking device 122 is used to jack the workpiece. The pressing device 121 may include a pressing base 1212 and a pressing screw 1211, and the pressing screw 1211 may be threadedly connected to the pressing base 1212. The jacking device 122 may include a jacking base 1222 and a jacking screw 1221, and the jacking screw 1221 may be threadedly connected to the jacking base 1222.

[0087] The production line quick-change system provided by this exemplary embodiment can be applied to grinding and welding machine production lines.

[0088] Those skilled in the art will readily appreciate other embodiments of the present disclosure after considering the specification and practicing what is disclosed herein. This application is intended to cover any variations, uses, or adaptations of the present disclosure that follow the general principles of the present disclosure and include common knowledge or customary technical means in the art that are not disclosed in the present disclosure. The specification and embodiments are to be considered merely as exemplary, and the true scope and spirit of the present disclosure are indicated by the claims.

[0089] The drawings in the present disclosure only relate to the structures involved in the present disclosure, and other structures may refer to the usual design. In the absence of conflict, the embodiments of the present disclosure and the features in the embodiments may be combined with each other to obtain new embodiments. It should be understood by those of ordinary skill in the art that the technical solutions of the present disclosure may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present disclosure, and should be included in the scope of the claims of the present disclosure.

[0090] It should be understood that the present disclosure is not limited to the exact structures that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A production line quick change system, characterized in that: The production line quick change system includes: A tooling device, wherein the tooling device is used for clamping a workpiece; Two first quick-install devices, the two first quick-install devices can be detachably connected to the two ends of the tooling, and the two first quick-install devices are used to be detachably connected to the head positioner and the tail positioner respectively; The second quick-install device can be detachably connected to a position between two ends of the tooling, and the second quick-install device can be detachably connected to the L-shaped positioner.

2. The production line quick change system according to claim 1, characterized in that: The tooling includes: Conformal main beam; A pressing and tightening device is arranged on the conformal main beam, and is used to press or tighten the workpiece; A supporting device is movably connected to the conformal main beam, and the supporting device can move along the extension direction of the conformal main beam, and the supporting device is used to support a workpiece.

3. The production line quick change system according to claim 1, characterized in that: The first quick-loading device comprises: A support body, the support body comprising a fixedly connected connecting plate, a supporting base, and a supporting side seat, the connecting plate being detachably connected to the head positioner or the tail positioner, the supporting side seat comprising a supporting top plate, the supporting top plate and the supporting base being arranged opposite to each other; A driving mechanism is disposed in the supporting base; A screw, wherein the first end of the screw is located in the support base, the driving mechanism is used to drive the screw to rotate, and the second end of the screw is threadedly connected to the support top plate; A rack is disposed in the supporting side seat, and the rack extends along the extension direction of the screw rod; The clamping assembly is fixed on the screw rod, and the clamping assembly is movably connected to the rack.

4. The production line quick change system according to claim 3, characterized in that: The first quick-loading device also includes: Two stop plates are arranged on the support base, the two stop plates are arranged opposite to each other, and a stop space for accommodating the tooling is formed between the two stop plates; Two guide plates, the two guide plates and the two stop plates are arranged in one-to-one correspondence, the guide plates are fixed to the side faces of the corresponding stop plates facing the stop space, the side faces of the guide plates facing the stop space form an inclined surface, and the distance between the inclined surfaces on the two guide plates gradually increases from the side away from the support base to the side close to the support base; A support plate, arranged on the support base, the support plate is arranged between the two stop plates, and the support plate is used to support the tooling; A positioning pin is arranged on the support base, the positioning pin is arranged between the two stop plates, the positioning pin and the positioning hole on the tooling are matched, and the positioning pin is used to be inserted into the positioning hole.

5. The production line quick change system according to claim 3, characterized in that: The clamping assembly comprises: A pressing support, the pressing support is fixed on the screw rod, and the pressing support is slidably connected to the rack along the extension direction of the rack; A clamping piece is fixed to the side of the clamping support facing the support base, a clamping groove is formed on the side of the clamping piece facing the support base, and a partial structure of the tooling is used to match and be arranged in the clamping groove.

6. The production line quick change system according to claim 3, characterized in that: The driving mechanism comprises an output shaft, the extension direction of the output shaft intersects with the extension direction of the screw rod, and the output shaft drives the screw rod to rotate via a bevel gear.

7. The production line quick change system according to claim 3, characterized in that: The second quick-loading device comprises: A quick connection plate, the quick connection plate is used to be detachably connected to the tooling; A quick-change chassis, the quick-change chassis is used to be detachably connected to the L-shaped positioner; The quick-release assembly is arranged between the quick-connection plate and the quick-change chassis, and the quick-release assembly is used for disassembling and assembling the quick-connection plate and the quick-change chassis.

8. The production line quick change system according to claim 7, characterized in that: The quick connection plate comprises: a first connection plate; A second connection disk, arranged opposite to the first connection disk; An annular connecting rib is fixed between the first connecting plate and the second connecting plate.

9. The production line quick change system according to claim 8, characterized in that: The quick-install assembly includes a clamping device, and the clamping device includes: A first driving device, fixed on the quick-change chassis; A first pressing wedge is fixed to the inner side of the annular connecting rib; The second clamping wedge is fixed on the first driving device, and the first driving device can drive the second clamping wedge to move radially along the quick-change chassis so that the second clamping wedge and the first clamping wedge are compressed or spaced apart.

10. The production line quick change system according to claim 8, characterized in that: The quick-install assembly includes an anti-falling device, and the anti-falling device includes: A second driving device is fixed on the quick-change chassis; An anti-slip seat, the anti-slip seat is fixed to the inner side of the annular connecting rib, and a through hole is formed on the inner side of the anti-slip seat away from the annular connecting rib; The anti-dropout pin is fixed on the second driving device, and the second driving device can drive the anti-dropout pin to move radially along the quick-change chassis so that the anti-dropout pin can be inserted into the through hole of the anti-dropout seat, or be separated from the through hole of the anti-dropout seat.

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