Quick-change type common tool support

Abstract

The invention provides a quick-changing type common tool support, and relates to the field of machining tools, the quick-changing type common tool support comprises a rack body and a die changing trolley, the upper end of the rack body is connected with a liftable upper mounting plate, and the upper mounting plate and / or the rack body are / is provided with a lifting driving mechanism used for driving the upper mounting plate to move up and down; the upper mounting plate is provided with a quick change mechanism for quickly disassembling, assembling and replacing different types of upper dies; the lower end of the rack body is connected with a lower mounting plate; a positioning part for positioning different types of lower dies and a plurality of die locking mechanisms are arranged on the lower mounting plate; a first connecting part is arranged on one side of the rack body, and a second connecting part and a locking driving mechanism used for driving the second connecting part to be clamped with and separated from the first connecting part are arranged on the die changing trolley; the rack body is provided with a protection mechanism used for preventing the upper mounting plate from falling abnormally. The quick-change type common tool support can be used for installing and adapting to different types of molds, redundant and repeated tool supports are reduced, and the production cost is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of processing tooling, and in particular to a quick-change common tooling bracket. Background Art

[0002] Tooling structures are indispensable in factory workshops, especially in the automotive parts manufacturing industry. For example, during the manufacturing process of a car roof, fabric composite tooling, fabric hemming tooling, plastic buckle pressing tooling, etc. are required. Obviously, a single roof component requires multiple different types of tooling structures to achieve the corresponding functional requirements.

[0003] At present, most manufacturers use separate tooling for each process in the parts production process, and each type of tooling basically includes a tooling bracket and upper and lower molds. The tooling bracket actually only plays a fixed support role. Therefore, there is a lot of resource waste in the existing technology, which increases the manufacturing cost, and many different types of tooling occupy a large space. Therefore, how to reduce the manufacturing cost and reasonably optimize the tooling structure is also a direction that needs to be considered in the process of technical improvement. Summary of the invention

[0004] In order to overcome at least one of the above defects in the prior art, the present invention provides a quick-change common tooling bracket, which can be used to install and adapt different types of molds, reduce redundant and repeated tooling brackets, and reduce production costs.

[0005] The present invention provides a quick-change common tooling bracket, comprising a frame body and a mold-changing trolley, the upper end of the frame body is connected to an upper mounting plate which can be lifted and lowered vertically, and the upper mounting plate and / or the frame body are provided with a lifting drive mechanism for driving the upper mounting plate to move up and down; the upper mounting plate is provided with a quick-change mechanism for quickly disassembling and replacing upper molds of different types; the lower end of the frame body is connected to a lower mounting plate, and the lower mounting plate is provided with a positioning portion for positioning lower molds of different types and a plurality of mold locking mechanisms; a first connecting portion is provided on one side of the frame body, and a second connecting portion and a locking drive mechanism for driving the second connecting portion to engage and disengage with the first connecting portion are provided on the mold-changing trolley; a protective mechanism is also provided on the frame body, and when changing molds or overhauling, the support column of the protective mechanism is supported and limited at the lower end of the upper mounting plate, and when working, the support column can be rotated to a storage position so that the upper mounting plate can be lifted and lowered normally.

[0006] Compared with the prior art, the quick-change common tooling bracket of the present invention has the following advantages: Bengang's quick-change common tooling bracket is a universal bracket, which can be used for the installation of various types of process molds. Specifically, the upper mounting plate is provided with a corresponding quick-change structure, and the upper molds of different types of molds are quickly disassembled and replaced through the quick-change mechanism when connected to the upper mounting plate; similarly, a positioning part and a locking mechanism are provided on the lower mounting plate. When the lower molds of different types of molds are connected to the lower mounting plate, they are first positioned through the corresponding positioning part, and then the position is locked through multiple locking mechanisms. What needs to be emphasized here is that the positioning part and the locking mechanism can be applicable to various types of molds in different industries, such as welding, cladding, and pressing. The structure can realize the closing and cooling of different molds, and has strong versatility. In addition, a protective mechanism is also arranged on the frame body in the above structure, and the protective mechanism includes a support column, and the support column can rotate in the horizontal direction, that is, in the normal working state, the support column rotates to the storage state, and the upper mounting plate can be normally lifted and lowered to realize the closing of the upper and lower molds. When the mold needs to be repaired or the mold is changed, the upper mounting plate is generally lifted to the highest point. At this time, the support column can be rotated to its upper end abutting against the lower end surface of the upper mounting plate to avoid abnormal falling of the upper mounting plate due to failure of the lifting drive mechanism, thereby effectively ensuring the personal safety of the operator.

[0007] Furthermore, the quick-change mechanism includes a plurality of first drive cylinders, and the upper mounting plate is provided with a plurality of connecting holes for the fixed plug plate preset on the upper mold to pass through. The plurality of first drive cylinders are installed on the upper end surface of the upper mounting plate and correspond to each of the connecting holes respectively, and the driving end of each of the first drive cylinders is connected to a first locking pin which is inserted and positioned with the fixed plug plate.

[0008] As an improvement, fixed seats are provided at the front and rear ends on both sides of the left and right sides of the lower mounting plate, and a limiting protrusion is provided on the side of each fixed seat close to the lower mold, and a connecting hole is opened on each limiting protrusion, and a second driving cylinder is also provided on each fixed seat, and the driving end of each second driving cylinder is connected to a second locking pin for passing through the connecting hole and inserting and mating with the preset positioning holes on both sides of the lower mold to form the locking mechanism.

[0009] Furthermore, the lifting drive mechanism includes two guide racks, a double-headed motor and two driving gears, the two guide racks are vertically connected to the two side walls of the frame body, the double-headed motor is connected to the upper end surface of the upper mounting plate, the two driving gears are respectively connected to the output shafts of the double-headed motor, and the two driving gears are respectively meshed with the two guide racks; a height positioning mechanism is also provided between the upper mounting plate and the frame body.

[0010] Furthermore, the height positioning mechanism includes two positioning racks, and the two positioning racks are respectively vertically connected to the two side walls of the frame body, and both ends of the upper mounting plate are connected to a positioning drive cylinder, and the driving ends of the two positioning drive cylinders are connected to positioning protruding teeth that cooperate with the positioning racks.

[0011] Furthermore, the protective mechanism also includes a rotating shaft, the upper and lower ends of the rotating shaft are respectively connected to the frame body through an upper fixed block and a lower fixed block, the support column is connected with an upper positioning plate and a lower positioning plate, and the ends of the upper positioning plate and the lower positioning plate away from the support column are both slidably mounted on the outside of the rotating shaft; an elastic member is arranged between the lower positioning plate and the lower fixed block so that the support column always has a tendency to move upward, a positioning hole is arranged on the upper positioning plate, and a positioning column is arranged on the upper fixed block, and when the support column is in the storage position, the positioning column is inserted and positioned in the positioning hole.

[0012] Furthermore, the mold changing trolley and the lower mounting plate are both provided with guide mechanisms for the lower mold to slide and are located in the same horizontal plane, the guide mechanisms include at least one row of first guide wheels extending along the front-to-back direction, and two rows of second guide wheels arranged on the left and right ends of the frame body or the mold changing trolley and extending along the front-to-back direction, the lower end surface and the left and right ends of the lower mold are respectively rollingly matched with the first guide wheel and the second guide wheel.

[0013] Furthermore, the first connecting part includes two locking blocks connected to the front walls at the left and right ends of the frame body, and the two locking blocks are each provided with a vertically extending locking groove, and the front wall of the locking block is provided with an insertion groove connected to the locking groove, and the width of the insertion groove is smaller than the width of the locking groove; the rear walls at the left and right ends of the mold changing trolley are connected with locking plates respectively cooperating with the two locking grooves, the transverse dimension of the locking plate is larger than its longitudinal dimension, the longitudinal dimension of the locking plate is smaller than the width of the insertion groove, and the transverse dimension is smaller than the width of the locking groove; when the locking plate passes through the insertion groove in a longitudinal position and extends into the locking groove, the locking drive mechanism is used to drive the locking plate to rotate to a transverse position to achieve the locking limit of the mold changing trolley and the frame body.

[0014] Furthermore, the locking drive mechanism includes two rotating shafts extending along the front-to-back direction of the mold changing trolley, the two locking plates are respectively connected to the rear ends of the two rotating shafts, and the front ends of the two rotating shafts are connected to rotating handles; the rear side of the mold changing trolley is located on both sides of the two rotating shafts and is provided with positioning pressure rods that can be retracted along the front-to-back direction, and when the locking plate is locked in the locking groove, the rear end of the positioning pressure rod is tightly pressed against the outer wall of the locking block to limit the front side of the locking plate and the front side wall of the locking groove.

[0015] Furthermore, the positioning portion includes two positioning protrusions connected to the rear end of the lower mounting plate, two positioning pins connected to the front end of the lower mounting plate, and two positioning drive cylinders for respectively driving the vertical movement of each positioning pin; when changing the mold, when the lower mold moves from front to back to the set position, the rear end of the lower mold abuts against the two positioning protrusions, and the two positioning drive cylinders drive the positioning pins to move upward until they are inserted into the preset positioning holes on the lower surface of the front end of the lower mold.

[0016] Other improved features and advantages of the present invention will be described in the following specific embodiments, and partly become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures particularly pointed out in the description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional structural diagram of the quick-change common tooling bracket of the present invention; Figure 2 It is a partial structural diagram of the quick-change common tooling bracket of the present invention without being connected to the mold-changing trolley; Figure 3 It is a structural schematic diagram of the mold changing trolley in the present invention; Figure 4 It is a partial enlarged view of the maintenance protection component in the present invention; Figure 5 It is a partial schematic diagram of the connection structure between the mold changing trolley and the frame body in the present invention.

[0018] Description of reference numerals: 1. Frame body; 2. Mold changing trolley; 3. Upper mounting plate; 4. Lower mounting plate; 5. Support column; 6. First drive cylinder; 7. Connecting hole; 8. First locking pin; 9. Fixed seat; 10. Limiting convex block; 11. Second drive cylinder; 12. Second locking pin; 13. Guide rack; 14. Double-head motor; 15. Drive gear; 16. Positioning rack; 17. Positioning drive cylinder; 18. Positioning convex tooth; 19. Rotating shaft; 20. Upper fixed block; 21. Lower fixed block Fixed block; 22, upper positioning plate; 23, lower positioning plate; 24, elastic member; 25, first guide wheel; 26, second guide wheel; 27, locking block; 28, locking groove; 29, insertion groove; 30, locking plate; 31, driving shaft; 32, rotating handle; 33, positioning pressure rod; 34, positioning protrusion; 35, positioning pin; 36, mounting base; 37, positioning baffle; 38, guide slide plate; 39, spring; 40, guide block; 41, guide roller. DETAILED DESCRIPTION

[0019] First, those skilled in the art should understand that these implementations are only used to explain the technical principles of the embodiments of the present application, and are not intended to limit the protection scope of the embodiments of the present application. Those skilled in the art can make adjustments to them as needed to adapt to specific application scenarios.

[0020] In the description of the embodiments of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "fixed" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.

[0021] In the description of the present invention, it should be noted that the directions or positional relationships indicated by terms such as "upper end", "lower end", "front and back", and "left and right" are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0022] The present application is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0023] See also Figures 1 to 5 As shown, an embodiment of the present application discloses a quick-change common tooling bracket, including a frame body 1 and a mold changing trolley 2, wherein the mold changing trolley 2 is detachably connected to the front side of the frame body 1, and is used to assist in replacing different types of molds, mainly for assisting in the installation and removal of the lower mold.

[0024] Specifically, an upper mounting plate 3 which can be lifted and lowered vertically is connected to the upper end of the frame body 1, and a lifting drive mechanism for driving the upper mounting plate 3 to move up and down is arranged on the upper mounting plate 3 and / or the frame body 1; a quick-changing mechanism for quickly disassembling and replacing upper molds of different types is arranged on the upper mounting plate 3; a lower mounting plate 4 is connected to the lower end of the frame body 1, and a positioning portion for positioning lower molds of different types and a plurality of locking mechanisms for locking and limiting the lower molds are arranged on the lower mounting plate 4; a first connecting portion is arranged on one side of the frame body 1, and a second connecting portion and a locking drive mechanism for driving the second connecting portion to engage and disengage with the first connecting portion are arranged on the mold changing trolley 2; a protective mechanism is also arranged on the frame body 1, and when changing the mold or overhauling, the support column 5 of the protective mechanism is supported and limited at the lower end of the upper mounting plate 3, and when working, the support column 5 can be rotated to the storage position so that the upper mounting plate 3 can be lifted and lowered normally.

[0025] In the above structure, an upper mounting plate 3 and a lower mounting plate 4 are respectively arranged on the upper and lower sides of the frame body 1, wherein the upper mounting plate 3 is used to install and position the upper mold, and the lower mounting plate 4 is used to install and position the lower mold, and a corresponding quick-change structure is arranged on the upper mounting plate 3, and the upper molds of different types of molds are quickly disassembled and replaced through the quick-change mechanism when connected to the upper mounting plate 3; similarly, a positioning part and a locking mechanism are arranged on the lower mounting plate 4, and when the lower molds of different types of molds are connected to the lower mounting plate 4, they are first positioned through the corresponding positioning parts, and then the position is locked through multiple locking mechanisms. What is important here is that the positioning part and the locking mechanism can be applicable to a variety of different types of molds in different industries. , for example: welding, coating, pressing and cooling, etc. to realize different functions of the mold, with strong versatility; in addition, in the above structure, a protective mechanism is also arranged on the frame body 1, and the protective mechanism includes a support column 5, and the support column 5 is rotatable in the horizontal direction, that is, in the normal working state, the support column 5 is rotated to the storage state, at which time the upper mounting plate 3 can be normally lifted and lowered to realize the clamping of the upper and lower molds. When the mold needs to be repaired or the mold is changed, the upper mounting plate 3 is generally lifted to the highest point. At this time, the support column 5 can be rotated until its upper end abuts against the lower end surface of the upper mounting plate 3 to avoid abnormal falling of the upper mounting plate 3 due to failure of the lifting drive mechanism, thereby ensuring the personal safety of the workers.

[0026] In this embodiment, specifically, the quick-change mechanism includes a plurality of first drive cylinders 6, and a plurality of connecting holes 7 for passing the fixed plug-in plates preset on the upper mold are provided on the upper mounting plate 3. The plurality of first drive cylinders 6 are installed on the upper end surface of the upper mounting plate 3 and correspond to the connecting holes 7 respectively. The driving end of each first drive cylinder 6 is connected with a first locking pin 8 inserted and positioned with the fixed plug-in plate to realize the connection and fixation of the upper mold. When changing the mold, the upper mold is supported by a dedicated support assembly, and each first drive cylinder 6 moves in the opposite direction to drive each first locking pin 8 to disengage from the fixed plug-in plate. At this time, the upper mold first moves down a distance to disengage the fixed plug-in plate from the connecting hole 7, and then the upper mold can be translated to install and fix the new upper mold. In this structure, preferably, positioning seats are provided on the upper end surface of the upper mounting plate 3 and at positions corresponding to each connecting hole 7, and a sliding through hole is opened on each positioning seat, one end of each first locking pin 8 is connected to the driving end of the first driving cylinder 6, and the other end slides in the sliding through hole; in addition, a transversely arranged fixing plate is provided on the outer wall of each fixing seat 9, and a sensor for detecting the first locking pin 8 is provided at one end of the fixing plate away from the positioning seat, that is, the sensor can identify whether each corresponding first locking pin 8 is extended to the working state, so as to ensure that when the upper mold is connected, each fixed plug plate is inserted and positioned, avoiding the occurrence of unstable connection of the upper mold due to the failure of the first locking pin 8 to extend normally; and a controller is provided on the frame body 1, and each sensor is electrically connected to the controller. When it is detected that the first locking pin 8 has not been smoothly extended, the system can issue an early warning prompt.

[0027] In addition, fixed seats 9 are provided at the front and rear ends on both sides of the left and right sides of the lower mounting plate 4, and a limiting protrusion 10 is provided on the side of each fixed seat 9 close to the lower mold, and a connecting hole 7 is opened on each limiting protrusion 10, and a second driving cylinder 11 is also provided on each fixed seat 9, and the driving end of each second driving cylinder 11 is connected to a second locking pin 12 for passing through the connecting hole 7 and inserting and matching with the preset positioning holes on both sides of the lower mold to form a locking mechanism.

[0028] In this embodiment, in order to further ensure the installation stability and position accuracy of the lower mold, the positioning part includes two positioning protrusions 34 connected to the rear end of the lower mounting plate 4 and spaced apart on the left and right, two positioning pins 35 connected to the front end of the lower mounting plate 4 and spaced apart on the left and right, and two positioning drive cylinders 17 for respectively driving each positioning pin 35 to move vertically; when changing the mold, when the lower mold moves from front to back to the set position, the rear end of the lower mold abuts against the two positioning protrusions 34, and the two positioning drive cylinders 17 drive the positioning pins 35 to move upward until they are inserted and fitted into the preset positioning sockets on the lower surface of the front end of the lower mold, thereby realizing accurate definition of the installation position of the lower mold. At the same time, combined with the insertion and locking of the four second locking pins 12 on the left and right sides of the lower mold, the structural stability of the lower mold after connection is effectively guaranteed.

[0029] Further, in the above structure, see the attached Figure 3 In order to facilitate the movement of the lower mold between the mold changing trolley 2 and the lower mounting plate 4 during mold changing, a guide mechanism for the lower mold to slide and located on the same horizontal plane is provided on the mold changing trolley 2 and the lower mounting plate 4. The guide mechanism includes at least one row of first guide wheels 25 extending in the front-to-back direction, and two rows of second guide wheels 26 extending in the front-to-back direction and arranged at the left and right ends of the frame body 1 or the mold changing trolley 2. The lower end surface and the left and right ends of the lower mold are respectively in rolling cooperation with the first guide wheel 25 and the second guide wheel 26. See the attached Figure 1 , 3 Two rows of first guide wheels 25 and two rows of second guide wheels 26 are arranged on the mold changing trolley 2, and three rows of first guide wheels 25 and two rows of second guide wheels 26 are arranged on the lower mounting plate 4, wherein the axis of the first guide wheel 25 extends in the left-right direction, and the axis of the second guide wheel 26 extends in the up-down direction, that is, when the lower mold is in the moving position, its lower end surface rolls with each first guide wheel 25, and its left and right end outer walls roll with the two rows of second guide wheels 26, effectively reducing the friction resistance of the lower mold during movement and facilitating mold changing. In this structure, each row of first guide wheels 25 or second guide wheels 26 includes a plurality of rollers spaced apart in the front-back direction.

[0030] In this embodiment, see the attached Figure 2The lifting drive mechanism includes two guide racks 13, a double-headed motor 14 and two driving gears 15. The two guide racks 13 are vertically connected to the two side walls of the frame body 1, the double-headed motor 14 is connected to the upper end surface of the upper mounting plate 3, and the two driving gears 15 are respectively connected to the output shafts of the double-headed motor 14, and the two driving gears 15 are respectively meshed with the two guide racks 13. The operation of the double-headed motor 14 realizes the lifting movement of the upper mounting plate 3 on the frame body 1. On the other hand, in this structure, a height positioning mechanism is also provided between the upper mounting plate 3 and the frame body 1, so that the upper mounting plate 3 can be positioned at any height position. Specifically, the height positioning mechanism includes two positioning racks 16, and the two positioning racks 16 are respectively connected vertically to the two side walls of the frame body 1, and both ends of the upper mounting plate 3 are connected with positioning drive cylinders 17, and the driving ends of the two positioning drive cylinders 17 are connected with positioning convex teeth 18 that cooperate with the positioning racks 16. When the upper mounting plate 3 is positioned at a set height, the positioning protrusions at both ends of the upper mounting plate 3 are engaged in the tooth grooves of the corresponding height of the positioning rack 16; when the upper mounting plate 3 needs to be raised or lowered, the two positioning drive cylinders 17 retract, driving the two positioning convex teeth 18 to disengage from the corresponding tooth grooves, and when the upper mounting plate 3 is adjusted to the required height position, the two positioning convex teeth 18 cooperate with the corresponding tooth grooves again to achieve the position limitation of the upper mounting plate 3.

[0031] In the above structure, the upper mounting plate 3 and the lower mounting plate 4 are connected by four rectangularly distributed columns, and vertically arranged linear slide rails are connected to the four columns. The four corner positions of the upper mounting plate 3 are connected to sliders, and the four sliders are respectively slidably engaged on the corresponding linear slide rails to improve the stability of the upper mounting plate 3 moving up and down.

[0032] See the attached Figure 4The protection mechanism in this embodiment includes two support columns 5, which are respectively arranged on the two end columns on the front side of the frame body 1. The following description will be made taking the connection structure of the support columns 5 on one side as an example. The protective mechanism also includes a rotating shaft 19, and an upper fixed block 20 and a lower fixed block 21 are arranged on the two end columns on the front side of the frame body 1, and the upper and lower ends of the rotating shaft 19 are rotatably connected to the upper fixed block 20 and the lower fixed block 21 respectively, and the upper positioning plate 22 and the lower positioning plate 23 arranged up and down are connected to the support column 5, and the ends of the upper positioning plate 22 and the lower positioning plate 23 away from the support column 5 are slidably sleeved on the outside of the rotating shaft 19; an elastic member 24 is arranged between the lower positioning plate 23 and the lower fixed block 21, so that the support column 5 always has a tendency to move upward, a positioning socket is arranged on the upper positioning plate 22, and a positioning plug is arranged on the upper fixed block 20. When the support column 5 is in the storage position, the positioning plug is inserted and positioned in the positioning socket under the action of the elastic member 24; when the support column 5 needs to be rotated, it is necessary to press down the support column 5 first to drive the elastic member 24 to compress, and the support column 5 can be horizontally rotated only after the positioning plug is disengaged from the positioning socket.

[0033] In addition, see Appendix Figure 5 The first connecting part includes two locking blocks 27 connected to the front walls of the left and right ends of the frame body 1. The two locking blocks 27 are provided with vertically extending locking grooves 28, and the front walls of the locking blocks 27 are provided with insertion grooves 29 connected to the locking grooves 28. The width of the insertion grooves 29 is smaller than the width of the locking grooves 28; the rear walls of the left and right ends of the mold changing trolley 2 are connected with locking plates 30 respectively matched with the two locking grooves 28. The transverse dimension of the locking plate 30 is greater than its longitudinal dimension, the longitudinal dimension of the locking plate 30 is smaller than the width of the insertion grooves 29, and the transverse dimension is smaller than the width of the locking grooves 28; that is, the locking plate 30 cannot pass through the insertion grooves 29 and extend into the locking grooves 28 along the transverse position, and it needs to be rotated 90 degrees. Only when the longitudinal position corresponds to the insertion slot 29 can the locking piece 30 pass through the insertion slot 29 and enter the locking slot 28; therefore, when the mold changing trolley 2 is connected and locked with the frame body 1, it is necessary to adjust the locking piece 30 to the longitudinal position corresponding to the insertion slot 29 through the locking drive mechanism, and then push the mold changing trolley 2 toward the frame body 1 to the set position. At this time, the two locking pieces 30 at both ends of the mold changing trolley 2 are respectively extended into the two locking slots 28 on the frame body 1, and then continue to operate the locking drive mechanism to drive the two locking pieces 30 to rotate a certain angle to the lateral position. At this time, the locking piece 30 cannot continue to move in the locking slot 28 along the front and rear direction to achieve the locking limit of the mold changing trolley 2 and the frame body 1.

[0034] In the above structure, for more details, see the attached Figure 5The locking drive mechanism includes two driving shafts 31 extending along the front-to-back direction of the mold changing trolley 2, the two driving shafts 31 are rotatably connected to the mold changing trolley 2, and two locking plates 30 are respectively connected to the rear ends of the two driving shafts 31, and the front ends of the two driving shafts 31 are connected with a rotating handle 32 for driving them to rotate around their own axis directions; the rear side of the mold changing trolley 2 is located on both sides of the two driving shafts 31 and is provided with a positioning pressure rod 33 which is retractable along the front-to-back direction. When the locking plate 30 is locked in the locking groove 28, the rear end of the positioning pressure rod 33 is tightly pressed against the outer wall of the locking block 27, so that the front side of the locking plate 30 is tightly pressed against the front side wall of the locking groove 28.

[0035] Preferably, two mounting base plates 36 spaced apart from each other are provided at both ends of the mold changing trolley 2, and bearing seats are provided on both mounting plates. Both ends of the two driving shafts 31 are rotatably connected to the bearing seats through bearings, and positioning baffles 37 are also provided on the mounting base plates 36 at the rear ends of the two mold changing trolleys 2. A guide slide 38 is slidably connected to one end of the driving shaft 31 and close to the frame body 1, a spring 39 is provided between the guide slide 38 and the positioning baffle 37, and two positioning pressure rods 33 located on both sides of the driving shaft 31 are connected to the end of the guide slide 38 away from the positioning baffle 37. ; In the initial state, under the action of the spring 39, the outer ends of the two positioning pressure rods 33 extend beyond the locking plate 30. When the mold changing trolley 2 moves toward one side of the frame body 1, the positioning pressure rods 33 at the corresponding positions at both ends will first abut against the front wall of the locking block 27, allowing the rear mold changing trolley 2 to continue to move toward the frame body 1 until the locking plate 30 passes through the insertion slot 29 along the longitudinal position, and then operate the rotating handle 32 to drive the driving shaft 31 to rotate until the locking plate 30 is in a horizontal position, releasing the force acting on pushing the mold changing trolley 2. Under the action of the elastic member 24, the front side of the locking plate 30 is tightly pressed against the front side wall of the locking slot 28 to limit the position.

[0036] In this structure, there are two springs 39, and two guide columns are connected to one side of the guide slide 38 close to the positioning baffle 37. The other end of the guide column is slidably fitted on the positioning baffle 37, and the two springs 39 are respectively mounted on the outside of the two guide columns to limit their compression movement.

[0037] See the attached Figure 5 Guide blocks 40 are provided at both ends of the front side of the frame body 1, and the two guide blocks 40 are respectively located on both sides of the two locking blocks 27, and the two guide blocks 40 are provided with guide slopes on the side away from each other. Guide rollers 41 are provided at both ends of the rear side of the mold changing trolley 2, and the two guide rollers 41 respectively cooperate with the guide slopes of the two guide blocks 40, and play a guiding and positioning role when the mold changing trolley 2 is connected to the frame body 1, so that the locking piece 30 can be retained to pass through the insertion slot 29 and cooperate with the locking slot 28 more accurately.

[0038] In this embodiment, the main frame of the mold changing trolley 2 is assembled from a plurality of square tubes, a roller is provided at the bottom of the main frame, and a push rod is provided at the front end to facilitate the movement of the mold changing trolley.

[0039] In addition, in this embodiment, a control cabinet is also provided on the rack body 1, and a plurality of aviation plugs are provided on the upper mounting plate 3 to better expand the application range of the tooling.

[0040] In the description of the present application, the description with reference to the term "present embodiment" means that the specific features, mechanisms, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, mechanisms, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradicting each other.

[0041] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. A quick-change common tooling bracket, characterized in that: The invention comprises a frame body (1) and a mold changing trolley (2); the upper end of the frame body (1) is connected to an upper mounting plate (3) which can be lifted and lowered in the vertical direction; the upper mounting plate (3) and / or the frame body (1) are provided with a lifting driving mechanism for driving the upper mounting plate (3) to move up and down; the upper mounting plate (3) is provided with a quick-change mechanism for quickly disassembling and replacing upper molds of different types; the lower end of the frame body (1) is connected to a lower mounting plate (4); the lower mounting plate (4) is provided with a positioning mechanism for positioning lower molds of different types; The frame body (1) is provided with a first connection part and a plurality of mold locking mechanisms; a first connection part is provided on one side of the frame body (1); a second connection part and a locking drive mechanism for driving the second connection part to engage with and disengage from the first connection part are provided on the mold changing trolley (2); a protection mechanism is also provided on the frame body (1); when changing molds or overhauling, a support column (5) of the protection mechanism supports and limits the lower end of the upper mounting plate (3); when working, the support column (5) can be rotated to a storage position so that the upper mounting plate (3) can be normally raised and lowered.

2. The quick-change common tooling bracket according to claim 1, characterized in that: The quick-change mechanism comprises a plurality of first drive cylinders (6), the upper mounting plate (3) is provided with a plurality of connecting holes (7) for passing the fixed plug plate preset on the upper mold, the plurality of first drive cylinders (6) are mounted on the upper end surface of the upper mounting plate (3) and correspond to each of the connecting holes (7), and the driving end of each of the first drive cylinders (6) is connected to a first locking pin (8) which is inserted and positioned with the fixed plug plate.

3. The quick-change common tooling bracket according to claim 1 or 2, characterized in that: The lower mounting plate (4) is provided with a fixing seat (9) at both the front and rear ends on both sides of the left and right sides, and a limiting protrusion (10) is provided on the side of each fixing seat (9) close to the lower mold, and a connecting hole (7) is opened on each limiting protrusion (10), and each fixing seat (9) is also provided with a second driving cylinder (11), and the driving end of each second driving cylinder (11) is connected to a second locking pin (12) for passing through the connecting hole (7) and being inserted and matched with the positioning holes preset on both sides of the lower mold, so as to form the locking mechanism.

4. The quick-change common tooling bracket according to claim 1, characterized in that: The lifting drive mechanism comprises two guide racks (13), a double-headed motor (14) and two driving gears (15); the two guide racks (13) are vertically connected to the two side walls of the frame body (1); the double-headed motor (14) is connected to the upper end surface of the upper mounting plate (3); the two driving gears (15) are respectively connected to the output shafts of the double-headed motor (14), and the two driving gears (15) are respectively meshed with the two guide racks (13); a height positioning mechanism is also provided between the upper mounting plate (3) and the frame body (1).

5. The quick-change common tooling bracket according to claim 4, characterized in that: The height positioning mechanism comprises two positioning racks (16), and the two positioning racks (16) are respectively connected to the two side walls of the frame body (1) in the vertical direction, and both ends of the upper mounting plate (3) are connected to positioning drive cylinders (17), and the driving ends of the two positioning drive cylinders (17) are connected to positioning convex teeth (18) that match the positioning racks (16).

6. The quick-change common tooling bracket according to claim 1, characterized in that: The protection mechanism also includes a rotating shaft (19), the upper and lower ends of which are connected to the frame body (1) through an upper fixing block (20) and a lower fixing block (21) respectively; an upper positioning plate (22) and a lower positioning plate (23) are connected to the support column (5), and the ends of the upper positioning plate (22) and the lower positioning plate (23) away from the support column (5) are both slidably mounted on the outside of the rotating shaft (19); an elastic member (24) is provided between the lower positioning plate (23) and the lower fixing block (21) so that the support column (5) always has a tendency to move upward; a positioning socket is provided on the upper positioning plate (22), and a positioning column is provided on the upper fixing block (20); when the support column (5) is located in the storage position, the positioning column is inserted and positioned in the positioning socket.

7. The quick-change common tooling bracket according to claim 1, characterized in that: The mold changing trolley (2) and the lower mounting plate (4) are both provided with guide mechanisms for the lower mold to slide and located on the same horizontal plane, and the guide mechanisms include at least one row of first guide wheels (25) extending in the front-to-back direction, and two rows of second guide wheels (26) arranged at the left and right ends of the frame body (1) or the mold changing trolley (2) and extending in the front-to-back direction, and the lower end surface and the left and right ends of the lower mold are respectively in rolling cooperation with the first guide wheel (25) and the second guide wheel (26).

8. The quick-change common tooling bracket according to claim 1, characterized in that: The first connection part comprises two locking blocks (27) connected to the front walls of the left and right ends of the frame body (1), the two locking blocks (27) are each provided with a locking groove (28) extending vertically, and the front wall of the locking block (27) is provided with an insertion groove (29) connected to the locking groove (28), and the width of the insertion groove (29) is smaller than the width of the locking groove (28); the rear walls of the left and right ends of the mold changing trolley (2) are connected with locking grooves (28) respectively matched with the two locking grooves (28) The locking plate (30) has a transverse dimension greater than its longitudinal dimension, a longitudinal dimension less than the width of the insertion slot (29), and a transverse dimension less than the width of the locking slot (28); when the locking plate (30) passes through the insertion slot (29) in a longitudinal position and extends into the locking slot (28), the locking drive mechanism is used to drive the locking plate (30) to rotate to a transverse position, so as to achieve locking and limiting of the mold changing trolley (2) and the frame body (1).

9. The quick-change common tooling bracket according to claim 8, characterized in that: The locking drive mechanism comprises two driving shafts (31) extending in the front-to-back direction of the mold changing trolley (2); the two locking plates (30) are respectively connected to the rear ends of the two driving shafts (31); the front ends of the two driving shafts (31) are connected to a rotating handle (32) for driving them to rotate around their own axis directions; the rear side of the mold changing trolley (2) is located on both sides of the two driving shafts (31) and is provided with a positioning pressure rod (33) which is retractable in the front-to-back direction; when the locking plate (30) is locked in the locking groove (28), the rear end of the positioning pressure rod (33) is tightly pressed against the outer wall of the locking block (27) so that the front side of the locking plate (30) is tightly pressed against the front side wall of the locking groove (28).

10. The quick-change common tooling bracket according to claim 1, characterized in that: The positioning portion comprises two positioning protrusions (34) connected to the rear end of the lower mounting plate (4), two positioning pins (35) connected to the front end of the lower mounting plate (4), and two positioning drive cylinders (17) for respectively driving the positioning pins (35) to move vertically; when changing the mold, when the lower mold moves from front to back to a set position, the rear end of the lower mold abuts against the two positioning protrusions (34), and the two positioning drive cylinders (17) drive the positioning pins (35) to move upward until they are inserted and fitted into the positioning sockets preset on the lower surface of the front end of the lower mold.

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